/* ---------------------------------------------------------------------------
 * 
/* Dashboard CSS - Theme Support */

/* Light Theme (Default) */
:root,
[data-theme="light"] {
    /* Fintech Colors - matching landing page */
    --primary-color: #3772FF;
    --primary-dark: #2563eb;
    --primary-light: #60a5fa;
    --secondary-color: #64748b;
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --error-color: #ef4444;
    
    /* Background Colors - Light Theme */
    --bg-primary: #ffffff;
    --bg-secondary: #f8fafc;
    --bg-tertiary: #f1f5f9;
    --bg-card: #ffffff;
    --bg-hover: #f1f5f9;
    
    /* Text Colors */
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --text-muted: #94a3b8;
    --text-white: #ffffff;
    
    /* Border Colors */
    --border-light: #e2e8f0;
    --border-medium: #cbd5e1;
    --border-focus: #3772FF;
    --border-color: #e2e8f0;
    
    /* Generation specific colors */
    --accent-primary: #3772FF;
    --gradient-primary: linear-gradient(135deg, #3772FF, #2563eb);
    --shadow-primary: 0 10px 25px rgba(55, 114, 255, 0.2);
    --shadow-card: 0 8px 25px rgba(0, 0, 0, 0.1);
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
    --shadow-glow: 0 0 20px rgba(55, 114, 255, 0.15);
    
    /* Spacing */
    --header-height: 80px;
    --header-height-mobile: 100px;
    --sidebar-width: 280px;
    --sidebar-collapsed-width: 80px;
    
    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

/* -----------------------------------------------------------------------------
 * Footer and Mobile Chat Input Styles
 *
 * The dashboard previously lacked styling for the footer section and had
 * alignment issues on small screens.  The following rules introduce a
 * cohesive footer design consistent with the rest of the dashboard and
 * improve the chat input field on mobile devices.
 */

/* Footer Styles */
.footer {
    background: var(--bg-secondary);
    color: var(--text-primary);
    padding: 40px 20px;
    border-top: 1px solid var(--border-light);
    font-size: 14px;
}

.footer .container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
}

.footer-content {
    display: flex;
    flex-wrap: wrap;
    gap: 40px;
    justify-content: space-between;
}

.footer h4 {
    margin-bottom: 8px;
    font-size: 1rem;
    color: var(--text-primary);
    font-weight: 600;
}

.footer p {
    margin: 4px 0;
    color: var(--text-secondary);
}

.footer a {
    color: var(--primary-color);
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer a:hover {
    text-decoration: underline;
}

.tour-video {
    max-width: 100%;
    max-height: 300px;
    border-radius: 12px;
    display: block;
    margin: 0 auto;
    object-fit: cover;
    box-shadow: 0 4px 12px rgba(0,0,0,0.2); /* аккуратная тень */
}


.footer ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.footer ul li {
    margin-bottom: 8px;
}

.footer-bottom {
    margin-top: 20px;
    text-align: center;
    color: var(--text-secondary);
    font-size: 0.875rem;
}

/* Responsive footer adjustments */
@media (max-width: 768px) {
    .footer-content {
        gap: 24px;
    }
}

@media (max-width: 480px) {
    .footer-content {
        flex-direction: column;
        gap: 24px;
    }
}

/* Mobile adjustments for chat input area */
@media (max-width: 480px) {
    /* Reduce spacing in the chat input container to provide more room for the input */
    .chat-input {
        gap: 8px;
        padding: 8px 12px;
    }
    #messageInput {
        font-size: 14px;
    }
    #messageInput::placeholder {
        font-size: 11px;
    }
}

/* Dark Theme */
[data-theme="dark"] {
    /* Fintech Colors - matching landing page */
    --primary-color: #3772FF;
    --primary-dark: #2563eb;
    --primary-light: #60a5fa;
    --secondary-color: #64748b;
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --error-color: #ef4444;
    
    /* Background Colors - Dark Fintech Theme */
    --bg-primary: #141423;
    --bg-secondary: #1a1a2e;
    --bg-tertiary: #16213e;
    --bg-card: #1e2139;
    --bg-hover: #252545;
    
    /* Text Colors */
    --text-primary: #EDF2FF;
    --text-secondary: #a8b3cf;
    --text-muted: #6b7280;
    --text-white: #ffffff;
    
    /* Border Colors */
    --border-light: #2d3748;
    --border-medium: #4a5568;
    --border-focus: #3772FF;
    --border-color: #2d3748;
    
    /* Generation specific colors */
    --accent-primary: #3772FF;
    --gradient-primary: linear-gradient(135deg, #3772FF, #2563eb);
    --shadow-primary: 0 10px 25px rgba(55, 114, 255, 0.3);
    --shadow-card: 0 8px 25px rgba(0, 0, 0, 0.4);
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.3);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.4), 0 2px 4px -2px rgb(0 0 0 / 0.4);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.4), 0 4px 6px -4px rgb(0 0 0 / 0.4);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.4), 0 8px 10px -6px rgb(0 0 0 / 0.4);
    --shadow-glow: 0 0 20px rgba(55, 114, 255, 0.3);
    
    /* Spacing */
    --header-height: 80px;
    --header-height-mobile: 100px;
    --sidebar-width: 280px;
    --sidebar-collapsed-width: 80px;
    
    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    transition: background-color 0.3s ease, color 0.3s ease;
}

/* Header Styles */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--header-height);
    background: var(--bg-card);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-light);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 32px;
    z-index: 1000;
    box-shadow: var(--shadow-md);
    transition: background-color 0.3s ease, border-color 0.3s ease;
}

/* Hide mobile navigation on desktop */
.mobile-header-nav {
    display: none;
}

.header-left {
    display: flex;
    align-items: center;
    gap: 24px;
}

.sidebar-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 24px;
    color: var(--text-secondary);
    cursor: pointer;
    padding: 12px;
    border-radius: 12px;
    transition: var(--transition-fast);
}

.sidebar-toggle:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
}

.logo {
    display: flex;
    align-items: center;
    gap: 16px;
    font-weight: 700;
    font-size: 24px;
    color: var(--primary-color);
    text-decoration: none;
}

.logo i {
    font-size: 32px;
}

.header-right {
    display: flex;
    align-items: center;
    gap: 16px;
}

/* Theme Toggle Button - Fixed styling */
.theme-toggle {
    background: var(--bg-tertiary);
    border: 1px solid var(--border-light);
    border-radius: 50px;
    padding: 10px 14px;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    color: var(--text-secondary);
    font-size: 16px;
    min-width: 44px;
    height: 44px;
}

.theme-toggle:hover {
    background: var(--primary-color);
    color: var(--text-white);
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow);
    border-color: var(--primary-color);
}

.theme-toggle i {
    font-size: 18px;
    transition: transform 0.3s ease;
}

.theme-toggle:hover i {
    transform: rotate(180deg);
}

.user-menu {
    position: relative;
}

.user-menu-toggle {
    display: flex;
    align-items: center;
    gap: 12px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-light);
    padding: 10px 16px;
    border-radius: 50px;
    cursor: pointer;
    transition: var(--transition-fast);
    color: var(--text-secondary);
    font-weight: 500;
}

.user-menu-toggle:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
    border-color: var(--border-medium);
}

.user-menu-dropdown {
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    background: var(--bg-card);
    border: 1px solid var(--border-light);
    border-radius: 16px;
    box-shadow: var(--shadow-xl);
    min-width: 220px;
    padding: 12px;
    display: none;
    z-index: 1001;
    transition: background-color 0.3s ease, border-color 0.3s ease;
}

.user-menu-dropdown.show {
    display: block;
}

.menu-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    text-decoration: none;
    color: var(--text-primary);
    border-radius: 12px;
    transition: var(--transition-fast);
    font-weight: 500;
}

.menu-item:hover {
    background: var(--bg-hover);
    color: var(--primary-color);
}

.menu-divider {
    height: 1px;
    background: var(--border-light);
    margin: 8px 0;
}

/* Sidebar Styles - Enhanced with modern design */
.sidebar {
    position: fixed;
    top: var(--header-height);
    left: 0;
    width: var(--sidebar-width);
    height: calc(100vh - var(--header-height));
    background: linear-gradient(180deg, var(--bg-card) 0%, var(--bg-secondary) 100%);
    border-right: 1px solid var(--border-light);
    padding: 32px 0;
    transition: all var(--transition-normal);
    z-index: 999;
    overflow-y: auto;
    box-shadow: var(--shadow-xl);
    backdrop-filter: blur(20px);
}

/* Sidebar collapsed state for desktop */
.sidebar.collapsed {
    width: var(--sidebar-collapsed-width);
}

.sidebar.collapsed .nav-item span {
    opacity: 0;
    transform: translateX(-20px);
    pointer-events: none;
}

.sidebar.collapsed .nav-item {
    justify-content: center;
    padding: 16px 12px;
}

.sidebar.collapsed .nav-item i {
    margin: 0;
}

/* Sidebar header with logo */
.sidebar-header {
    padding: 0 24px 24px 24px;
    border-bottom: 1px solid var(--border-light);
    margin-bottom: 24px;
}

.sidebar-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 700;
    font-size: 20px;
    color: var(--primary-color);
    text-decoration: none;
    transition: all var(--transition-fast);
}

.sidebar-logo i {
    font-size: 28px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.sidebar-nav {
    display: flex;
    flex-direction: column;
    gap: 4px;
    padding: 0 16px;
}

/* Enhanced nav items with modern styling */
.nav-item {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 14px 20px;
    text-decoration: none;
    color: var(--text-secondary);
    border-radius: 12px;
    transition: all var(--transition-fast);
    font-weight: 500;
    font-size: 15px;
    position: relative;
    margin: 2px 0;
    overflow: hidden;
}

/* Hover effects */
.nav-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(55, 114, 255, 0.1), transparent);
    transition: left 0.5s ease;
}

.nav-item:hover::before {
    left: 100%;
}

.nav-item:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
    transform: translateX(6px);
    box-shadow: 0 4px 12px rgba(55, 114, 255, 0.15);
}

/* Active state with gradient and glow */
.nav-item.active {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: var(--text-white);
    box-shadow: 0 8px 25px rgba(55, 114, 255, 0.3);
    transform: translateX(8px);
}

.nav-item.active::after {
    content: '';
    position: absolute;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 4px;
    height: 60%;
    background: var(--text-white);
    border-radius: 2px 0 0 2px;
}

.nav-item i {
    font-size: 18px;
    width: 20px;
    text-align: center;
    transition: all var(--transition-fast);
}

.nav-item span {
    transition: all var(--transition-fast);
    white-space: nowrap;
}

/* Icon animations on hover */
.nav-item:hover i {
    transform: scale(1.1);
}

.nav-item.active i {
    transform: scale(1.05);
    text-shadow: 0 0 8px rgba(255, 255, 255, 0.3);
}

/* Notification badges */
.nav-item .badge {
    position: absolute;
    top: 8px;
    right: 12px;
    background: var(--error-color);
    color: white;
    font-size: 10px;
    font-weight: 600;
    padding: 2px 6px;
    border-radius: 10px;
    min-width: 16px;
    text-align: center;
    animation: pulse 2s infinite;
}

/* Sidebar footer */
.sidebar-footer {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 16px 24px;
    border-top: 1px solid var(--border-light);
    background: var(--bg-card);
}

.sidebar-footer .user-info {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px;
    background: var(--bg-tertiary);
    border-radius: 12px;
    transition: all var(--transition-fast);
}

.sidebar-footer .user-info:hover {
    background: var(--bg-hover);
    transform: translateY(-2px);
}

.sidebar-footer .user-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 600;
    font-size: 14px;
}

.sidebar-footer .user-details {
    flex: 1;
    min-width: 0;
}

.sidebar-footer .user-name {
    font-weight: 600;
    font-size: 14px;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.sidebar-footer .user-status {
    font-size: 12px;
    color: var(--text-secondary);
}

/* Main Content */
.main-content {
    margin-left: var(--sidebar-width);
    padding: calc(var(--header-height) + 32px) 32px 32px 32px;
    transition: margin-left var(--transition-normal);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.main-content > *:not(.footer) {
    flex-grow: 1;
}

.main-content .footer {
    margin-left: calc(-1 * var(--sidebar-width));
    width: calc(100% + var(--sidebar-width));
}

.content-section {
    display: none;
}

.content-section.active {
    display: block;
}

/* Special display rules for generation sections */
#imageGenSection.active,
#videoGenSection.active {
    display: flex;
    flex-direction: column;
}



/* Chat Styles */
.chat-container {
    max-width: 1400px;
    margin: 0 auto;
    background: var(--bg-card);
    border-radius: 24px;
    box-shadow: var(--shadow-xl);
    height: calc(100vh - var(--header-height) - 64px);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    border: 1px solid var(--border-light);
    transition: background-color 0.3s ease, border-color 0.3s ease;
}

.chat-header {
    padding: 24px 32px;
    border-bottom: 1px solid var(--border-light);
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: var(--bg-card);
    transition: border-color 0.3s ease, background-color 0.3s ease;
}

.chat-header h2 {
    font-size: 28px;
    font-weight: 700;
    color: var(--text-primary);
    background: linear-gradient(135deg, var(--text-primary), var(--primary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.chat-header-controls {
    display: flex;
    align-items: center;
    gap: 20px;
}

.chat-status {
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--text-secondary);
    font-size: 16px;
    font-weight: 500;
}

.clear-chat-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 16px;
    background: var(--error-color);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 2px 4px rgba(239, 68, 68, 0.2);
}

.clear-chat-btn:hover {
    background: #dc2626;
    transform: translateY(-1px);
    box-shadow: 0 4px 8px rgba(239, 68, 68, 0.3);
}

.clear-chat-btn:active {
    transform: translateY(0);
}

.clear-chat-btn i {
    font-size: 12px;
}

.status-indicator {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--error-color);
    animation: pulse 2s infinite;
    box-shadow: 0 0 8px rgba(239, 68, 68, 0.5);
}

.status-indicator.connected {
    background: var(--success-color);
    animation: none;
    box-shadow: 0 0 8px rgba(16, 185, 129, 0.5);
}

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.7; transform: scale(1.1); }
}

.chat-messages {
    flex: 1;
    padding: 32px;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 24px;
    background: var(--bg-secondary);
    transition: background-color 0.3s ease;
}

.message {
    display: flex;
    gap: 16px;
    max-width: 85%;
    animation: messageSlideIn 0.4s ease;
}

@keyframes messageSlideIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.user-message {
    align-self: flex-end;
    flex-direction: row-reverse;
}

.ai-message {
    align-self: flex-start;
}

.message-avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    flex-shrink: 0;
    box-shadow: var(--shadow-md);
}

.user-message .message-avatar {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: var(--text-white);
}

.ai-message .message-avatar {
    background: var(--bg-tertiary);
    color: var(--primary-color);
    border: 2px solid var(--border-light);
}

.message-content {
    background: var(--bg-card);
    padding: 20px 24px;
    border-radius: 24px;
    position: relative;
    border: 1px solid var(--border-light);
    transition: background-color 0.3s ease, border-color 0.3s ease;
}

.user-message .message-content {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: var(--text-white);
    border-bottom-right-radius: 8px;
    box-shadow: var(--shadow-glow);
    border: none;
}

.ai-message .message-content {
    border-bottom-left-radius: 8px;
}

.message-content p {
    margin: 0;
    line-height: 1.6;
    font-size: 16px;
}

.message-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: 8px;
}

.message-time {
    font-size: 12px;
    opacity: 0.7;
    font-weight: 500;
}

.copy-message-btn {
    background: none;
    border: none;
    color: inherit;
    opacity: 0.6;
    cursor: pointer;
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 12px;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 4px;
}

.copy-message-btn:hover {
    opacity: 1;
    background: rgba(255, 255, 255, 0.1);
    transform: scale(1.1);
}

.user-message .copy-message-btn:hover {
    background: rgba(255, 255, 255, 0.2);
}

.ai-message .copy-message-btn:hover {
    background: var(--bg-hover);
}

.welcome-message {
    text-align: center;
    margin-bottom: 32px;
}

.welcome-message h3 {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--primary-color);
}

/* Chat Input */
.chat-input-container {
    padding: 32px;
    border-top: 1px solid var(--border-light);
    background: var(--bg-card);
    transition: border-color 0.3s ease, background-color 0.3s ease;
}

.chat-input {
    display: flex;
    align-items: center;
    gap: 16px;
    background: var(--bg-secondary);
    border: 2px solid var(--border-light);
    border-radius: 50px;
    padding: 12px;
    transition: var(--transition-fast);
}

.chat-input:focus-within {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 4px rgba(55, 114, 255, 0.1);
    background: var(--bg-card);
}

.attach-btn {
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    padding: 12px;
    border-radius: 50%;
    transition: var(--transition-fast);
    font-size: 20px;
}

.attach-btn:hover {
    color: var(--primary-color);
    background: rgba(55, 114, 255, 0.1);
}

#messageInput {
    flex: 1;
    border: none;
    outline: none;
    padding: 16px 20px;
    font-size: 16px;
    background: transparent;
    color: var(--text-primary);
    font-family: inherit;
}

#messageInput::placeholder {
    color: var(--text-muted);
}

.send-btn {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    border: none;
    color: var(--text-white);
    cursor: pointer;
    padding: 16px;
    border-radius: 50%;
    transition: var(--transition-fast);
    font-size: 20px;
    box-shadow: var(--shadow-glow);
}

.send-btn {
    margin-left: -28px;
}

.send-btn:hover {
    transform: scale(1.05);
    box-shadow: 0 0 30px rgba(55, 114, 255, 0.4);
}

.send-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}

/* File Upload Modal */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 2000;
    backdrop-filter: blur(8px);
}

.modal.show {
    display: flex;
}

.modal-content {
    background: var(--bg-card);
    border-radius: 24px;
    padding: 32px;
    max-width: 500px;
    width: 90%;
    box-shadow: var(--shadow-xl);
    border: 1px solid var(--border-light);
    transition: background-color 0.3s ease, border-color 0.3s ease;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
}

.modal-header h3 {
    font-size: 24px;
    font-weight: 700;
    color: var(--text-primary);
}

.modal-close {
    background: none;
    border: none;
    font-size: 24px;
    color: var(--text-secondary);
    cursor: pointer;
    padding: 8px;
    border-radius: 50%;
    transition: var(--transition-fast);
}

.modal-close:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
}

.upload-area {
    border: 2px dashed var(--border-medium);
    border-radius: 16px;
    padding: 48px 24px;
    text-align: center;
    cursor: pointer;
    transition: var(--transition-fast);
    background: var(--bg-secondary);
}

.upload-area:hover {
    border-color: var(--primary-color);
    background: var(--bg-tertiary);
}

.upload-area i {
    font-size: 48px;
    color: var(--primary-color);
    margin-bottom: 16px;
}

.upload-area p {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.upload-info {
    font-size: 14px;
    color: var(--text-secondary);
}

.upload-area input[type="file"] {
    display: none;
}

/* Loading Overlay */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 3000;
    backdrop-filter: blur(8px);
}

.loading-overlay.show {
    display: flex;
}

.loading-spinner {
    text-align: center;
    color: var(--text-white);
}

.loading-spinner i {
    font-size: 48px;
    animation: spin 1s linear infinite;
    color: var(--primary-color);
    margin-bottom: 16px;
}

.loading-spinner p {
    font-size: 18px;
    font-weight: 600;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Responsive Design */
@media (max-width: 1024px) {
    /*
     * Additional adjustments for mobile layout.  The sidebar positioning and
     * overlay are defined in the first mobile override above.  Here we
     * override only generic layout properties like margins and spacing to
     * improve the appearance on small screens.
     */
    .main-content {
        margin-left: 0;
    }
    .sidebar-toggle {
        display: block;
    }
    .header {
        padding: 0 24px;
    }
    .chat-container {
        margin: 16px;
        height: calc(100vh - var(--header-height) - 32px);
        border-radius: 20px;
    }

    /* On mobile, hide the sliding sidebar and burger toggle and show
       the compact mobile navigation inside the header. */
    .sidebar {
        display: none;
    }
    .sidebar-toggle {
        display: none;
    }
    
    /* Hide desktop elements on mobile */
    .logo {
        display: none !important;
    }
    .theme-toggle {
        display: none !important;
    }
    .user-menu {
        display: none !important;
    }
    .mobile-header-nav {
        /* Enhanced horizontal scrolling navigation */
        display: flex;
        align-items: center;
        gap: 12px;
        margin-left: auto;
        overflow-x: auto;
        overflow-y: hidden;
        padding: 8px 16px 8px 8px;
        -webkit-overflow-scrolling: touch;
        scroll-behavior: smooth;
        height: 100%;
        max-height: var(--header-height-mobile);
        /* Добавляем градиентные маски для плавного исчезновения */
        mask: linear-gradient(90deg, transparent 0px, black 20px, black calc(100% - 20px), transparent 100%);
        -webkit-mask: linear-gradient(90deg, transparent 0px, black 20px, black calc(100% - 20px), transparent 100%);
    }
    
    .mobile-header-nav::-webkit-scrollbar {
        display: none; /* Hide scroll bar on WebKit browsers */
    }
    
    /* Добавляем индикаторы прокрутки */
    .mobile-header-nav::before,
    .mobile-header-nav::after {
        content: '';
        position: absolute;
        top: 50%;
        transform: translateY(-50%);
        width: 20px;
        height: 60%;
        pointer-events: none;
        z-index: 10;
        opacity: 0;
        transition: opacity 0.3s ease;
    }
    
    .mobile-header-nav::before {
        left: 0;
        background: linear-gradient(90deg, var(--bg-card) 0%, transparent 100%);
    }
    
    .mobile-header-nav::after {
        right: 0;
        background: linear-gradient(90deg, transparent 0%, var(--bg-card) 100%);
    }
    
    .mobile-header-nav-item {
        display: flex;
        align-items: center;
        justify-content: center;
        width: 52px;
        height: 52px;
        border-radius: 16px;
        border: 2px solid transparent;
        background: linear-gradient(145deg, var(--bg-card), var(--bg-tertiary));
        color: var(--text-secondary);
        font-size: 18px;
        text-decoration: none;
        transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
        position: relative;
        overflow: hidden;
        box-shadow: 
            0 4px 12px rgba(0, 0, 0, 0.08),
            0 2px 4px rgba(0, 0, 0, 0.05),
            inset 0 1px 0 rgba(255, 255, 255, 0.1);
        flex-shrink: 0;
        margin: 0;
        backdrop-filter: blur(10px);
    }
    
    .mobile-header-nav-item::before {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: linear-gradient(145deg, var(--primary-color), var(--primary-dark));
        opacity: 0;
        transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
        border-radius: 16px;
        transform: scale(0.8);
    }
    
    .mobile-header-nav-item i {
        position: relative;
        z-index: 2;
        transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
        filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.1));
    }
    
    /* Добавляем пульсирующий эффект при наведении */
    .mobile-header-nav-item:hover,
    .mobile-header-nav-item:active {
        transform: translateY(-3px) scale(1.05);
        border-color: var(--primary-color);
        box-shadow: 
            0 8px 25px rgba(55, 114, 255, 0.4),
            0 4px 12px rgba(0, 0, 0, 0.15),
            inset 0 2px 0 rgba(255, 255, 255, 0.2);
        color: var(--text-white);
    }
    
    .mobile-header-nav-item:hover::before,
    .mobile-header-nav-item:active::before {
        opacity: 1;
        transform: scale(1);
    }
    
    .mobile-header-nav-item:hover i,
    .mobile-header-nav-item:active i {
        transform: scale(1.15) rotate(5deg);
        filter: drop-shadow(0 4px 8px rgba(0, 0, 0, 0.2));
    }
    
    .mobile-header-nav-item:active {
        transform: translateY(-1px) scale(1.02);
    }
    
    /* Улучшенные стили для активной кнопки */
    .mobile-header-nav-item.active {
        background: linear-gradient(145deg, var(--primary-color), var(--primary-dark));
        color: var(--text-white);
        border-color: var(--primary-light);
        box-shadow: 
            0 6px 20px rgba(55, 114, 255, 0.5),
            0 3px 8px rgba(0, 0, 0, 0.2),
            inset 0 2px 0 rgba(255, 255, 255, 0.3);
        animation: active-pulse 2s ease-in-out infinite;
    }
    
    .mobile-header-nav-item.active i {
        transform: scale(1.1);
        filter: drop-shadow(0 2px 6px rgba(0, 0, 0, 0.3));
    }
    
    /* Анимация для активной кнопки */
    @keyframes active-pulse {
        0%, 100% {
            box-shadow: 
                0 6px 20px rgba(55, 114, 255, 0.5),
                0 3px 8px rgba(0, 0, 0, 0.2),
                inset 0 2px 0 rgba(255, 255, 255, 0.3);
        }
        50% {
            box-shadow: 
                0 8px 30px rgba(55, 114, 255, 0.7),
                0 4px 12px rgba(0, 0, 0, 0.25),
                inset 0 2px 0 rgba(255, 255, 255, 0.4);
        }
    }
}

@media (max-width: 768px) {
    .header {
        padding: 0 16px;
        height: var(--header-height-mobile);
    }
    
    .sidebar {
        top: var(--header-height-mobile);
        height: calc(100vh - var(--header-height-mobile));
    }
    
    .main-content {
        margin-top: var(--header-height-mobile);
        padding: calc(var(--header-height-mobile) + 16px) 16px 16px 16px;
    }
    
    .header-right {
        gap: 12px;
    }
    
    .theme-toggle {
        padding: 8px 10px;
        min-width: 40px;
        height: 40px;
    }
    
    .user-menu-toggle {
        padding: 8px 12px;
    }
    
    .chat-messages {
        padding: 20px;
    }
    
    .chat-input-container {
        padding: 20px;
    }
    
    .message {
        max-width: 95%;
    }
    
    .modal-content {
        padding: 24px;
        margin: 16px;
    }
}

@media (max-width: 480px) {
    .header {
        height: 64px;
        --header-height: 64px;
    }
    
    .sidebar {
        top: 64px;
        height: calc(100vh - 64px);
    }
    
    .main-content {
        margin-top: 64px;
        padding: 16px;
        min-height: calc(100vh - 64px);
    }
    
    .chat-container {
        height: calc(100vh - 64px - 32px);
        border-radius: 12px;
    }
    
    .chat-header {
        padding: 16px 20px;
    }
    
    .chat-header h2 {
        font-size: 20px;
    }
    
    .theme-toggle {
        padding: 6px 8px;
        min-width: 36px;
        height: 36px;
    }
    
    .theme-toggle i {
        font-size: 16px;
    }
}

/* Scrollbar Styling */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-tertiary);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb {
    background: var(--border-medium);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-secondary);
}



/* Files Section Styles */
.files-container {
    max-width: 1400px;
    margin: 0 auto;
    background: var(--bg-card);
    border-radius: 24px;
    box-shadow: var(--shadow-xl);
    overflow: hidden;
    border: 1px solid var(--border-light);
    transition: background-color 0.3s ease, border-color 0.3s ease;
}

.files-header {
    padding: 32px;
    border-bottom: 1px solid var(--border-light);
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: var(--bg-card);
    transition: border-color 0.3s ease, background-color 0.3s ease;
}

.files-header h2 {
    font-size: 28px;
    font-weight: 700;
    color: var(--text-primary);
    background: linear-gradient(135deg, var(--text-primary), var(--primary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.upload-btn {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    border: none;
    color: var(--text-white);
    padding: 16px 24px;
    border-radius: 16px;
    cursor: pointer;
    font-weight: 600;
    font-size: 16px;
    display: flex;
    align-items: center;
    gap: 12px;
    transition: var(--transition-fast);
    box-shadow: var(--shadow-glow);
}

.upload-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 30px rgba(55, 114, 255, 0.4);
}

.files-grid {
    padding: 32px;
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 24px;
    min-height: 400px;
    background: var(--bg-secondary);
    transition: background-color 0.3s ease;
}

.loading-files {
    grid-column: 1 / -1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    font-size: 18px;
    font-weight: 500;
    gap: 16px;
}

.loading-files i {
    font-size: 64px;
    color: var(--primary-color);
    opacity: 0.7;
}

/* Enhanced File Card Styles */
.file-card {
    background: var(--bg-card);
    border: 1px solid var(--border-light);
    border-radius: 20px;
    padding: 24px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: default;
    display: flex;
    flex-direction: column;
    gap: 16px;
    position: relative;
    overflow: hidden;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
}

.file-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--primary-light));
    opacity: 0;
    transition: opacity 0.3s ease;
}

.file-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    border-color: var(--primary-color);
}

.file-card:hover::before {
    opacity: 1;
}

.file-header {
    display: flex;
    align-items: flex-start;
    gap: 16px;
}

.file-icon {
    width: 56px;
    height: 56px;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    color: var(--text-white);
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    box-shadow: 0 4px 12px rgba(55, 114, 255, 0.3);
    flex-shrink: 0;
}

.file-icon.image {
    background: linear-gradient(135deg, #10b981, #059669);
}

.file-icon.document {
    background: linear-gradient(135deg, #f59e0b, #d97706);
}

.file-icon.pdf {
    background: linear-gradient(135deg, #ef4444, #dc2626);
}

.file-icon.text {
    background: linear-gradient(135deg, #8b5cf6, #7c3aed);
}

.file-info {
    flex: 1;
    min-width: 0;
}

.file-name {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 8px;
    line-height: 1.4;
    word-break: break-word;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.file-meta {
    display: flex;
    flex-direction: column;
    gap: 4px;
    font-size: 13px;
    color: var(--text-secondary);
}

.file-size {
    font-weight: 500;
}

.file-date {
    opacity: 0.8;
}

.file-preview {
    width: 100%;
    height: 120px;
    border-radius: 12px;
    object-fit: cover;
    margin-bottom: 8px;
    background: var(--bg-tertiary);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
    font-size: 14px;
}

.file-preview img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 12px;
}

.file-actions {
    display: flex;
    gap: 8px;
    margin-top: 8px;
    padding-top: 16px;
    border-top: 1px solid var(--border-light);
}

.file-action-btn {
    flex: 1;
    padding: 10px 16px;
    border: none;
    border-radius: 12px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    text-decoration: none;
}

.file-action-btn.primary {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: var(--text-white);
    box-shadow: 0 2px 8px rgba(55, 114, 255, 0.3);
}

.file-action-btn.primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(55, 114, 255, 0.4);
}

.file-action-btn.secondary {
    background: var(--bg-tertiary);
    color: var(--text-secondary);
    border: 1px solid var(--border-light);
}

.file-action-btn.secondary:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
    border-color: var(--border-medium);
}

.file-action-btn.danger {
    background: rgba(239, 68, 68, 0.1);
    color: var(--error-color);
    border: 1px solid rgba(239, 68, 68, 0.2);
}

.file-action-btn.danger:hover {
    background: rgba(239, 68, 68, 0.15);
    border-color: rgba(239, 68, 68, 0.3);
}

.file-action-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none !important;
}

.file-action-btn i {
    font-size: 16px;
}

/* Loading state for file actions */
.file-action-btn.loading {
    pointer-events: none;
}

.file-action-btn.loading i {
    animation: spin 1s linear infinite;
}

@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

/* Legacy support for old file-item class */
.file-item {
    background: var(--bg-card);
    border: 1px solid var(--border-light);
    border-radius: 16px;
    padding: 24px;
    transition: var(--transition-fast);
    cursor: pointer;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.file-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
}

.file-item .file-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    color: var(--text-white);
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
}

.file-item .file-info h4 {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.file-item .file-info p {
    font-size: 14px;
    color: var(--text-secondary);
    margin: 0;
}

.file-actions {
    display: flex;
    gap: 8px;
    margin-top: auto;
}

.file-action-btn {
    background: var(--bg-tertiary);
    border: 1px solid var(--border-light);
    color: var(--text-secondary);
    padding: 8px 12px;
    border-radius: 8px;
    cursor: pointer;
    font-size: 14px;
    transition: var(--transition-fast);
    flex: 1;
    text-align: center;
}

.file-action-btn:hover {
    background: var(--primary-color);
    color: var(--text-white);
    border-color: var(--primary-color);
}

/* Settings Section Styles */
.settings-container {
    max-width: 800px;
    margin: 0 auto;
    background: var(--bg-card);
    border-radius: 24px;
    box-shadow: var(--shadow-xl);
    padding: 32px;
    border: 1px solid var(--border-light);
    transition: background-color 0.3s ease, border-color 0.3s ease;
}

.settings-container h2 {
    font-size: 28px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 32px;
    background: linear-gradient(135deg, var(--text-primary), var(--primary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.settings-group {
    margin-bottom: 32px;
    padding: 24px;
    background: var(--bg-secondary);
    border-radius: 16px;
    border: 1px solid var(--border-light);
    transition: background-color 0.3s ease, border-color 0.3s ease;
}

.settings-group h3 {
    font-size: 20px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 12px;
}

.settings-group h3::before {
    content: '';
    width: 4px;
    height: 20px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    border-radius: 2px;
}

.setting-item {
    margin-bottom: 20px;
}

.setting-item:last-child {
    margin-bottom: 0;
}

.setting-item label {
    display: block;
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: 8px;
    font-size: 16px;
}

.setting-item input[type="text"],
.setting-item input[type="email"] {
    width: 100%;
    padding: 16px 20px;
    border: 2px solid var(--border-light);
    border-radius: 12px;
    background: var(--bg-tertiary);
    color: var(--text-primary);
    font-size: 16px;
    font-family: inherit;
    transition: var(--transition-fast);
}

.setting-item input[type="text"]:focus,
.setting-item input[type="email"]:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 4px rgba(55, 114, 255, 0.1);
    background: var(--bg-card);
}

.setting-item input[type="text"]:read-only,
.setting-item input[type="email"]:read-only {
    background: var(--bg-hover);
    cursor: not-allowed;
    opacity: 0.7;
}

.setting-item input[type="checkbox"] {
    width: 20px;
    height: 20px;
    margin-right: 12px;
    accent-color: var(--primary-color);
    cursor: pointer;
}

.setting-item label:has(input[type="checkbox"]) {
    display: flex;
    align-items: center;
    cursor: pointer;
    margin-bottom: 0;
}

.usage-info {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.usage-info > span {
    font-weight: 600;
    color: var(--text-primary);
    font-size: 16px;
}

.usage-bar {
    width: 100%;
    height: 8px;
    background: var(--bg-tertiary);
    border-radius: 4px;
    overflow: hidden;
    border: 1px solid var(--border-light);
}

.usage-progress {
    height: 100%;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    border-radius: 4px;
    transition: width 0.3s ease;
    position: relative;
}

.usage-progress::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    animation: shimmer 2s infinite;
}

@keyframes shimmer {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}

/* Upload Progress Styles */
.upload-progress {
    margin-top: 24px;
    padding: 20px;
    background: var(--bg-secondary);
    border-radius: 12px;
    border: 1px solid var(--border-light);
}

.progress-bar {
    width: 100%;
    height: 12px;
    background: var(--bg-tertiary);
    border-radius: 6px;
    overflow: hidden;
    margin-bottom: 12px;
    border: 1px solid var(--border-light);
}

.progress-fill {
    height: 100%;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    border-radius: 6px;
    transition: width 0.3s ease;
    position: relative;
}

.progress-fill::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    animation: shimmer 1.5s infinite;
}

.progress-text {
    font-weight: 600;
    color: var(--text-primary);
    font-size: 14px;
    text-align: center;
    display: block;
}

/* File Preview Styles */
.file-preview {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-light);
    border-radius: 12px;
    margin-bottom: 16px;
}

.file-info {
    display: flex;
    align-items: center;
    gap: 8px;
    flex: 1;
}

.file-info i {
    color: var(--primary-color);
    font-size: 16px;
}

.file-info span {
    color: var(--text-primary);
    font-weight: 500;
    font-size: 14px;
}

.remove-file {
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    padding: 4px;
    border-radius: 4px;
    transition: var(--transition-fast);
}

.remove-file:hover {
    color: var(--error-color);
    background: rgba(239, 68, 68, 0.1);
}

/* Responsive adjustments for Files and Settings */
@media (max-width: 768px) {
    .files-grid {
        grid-template-columns: 1fr;
        padding: 20px;
    }
    
    .files-header {
        padding: 20px;
        flex-direction: column;
        gap: 16px;
        align-items: stretch;
    }
    
    .upload-btn {
        justify-content: center;
    }
    
    .settings-container {
        padding: 20px;
        margin: 16px;
    }
    
    .settings-group {
        padding: 16px;
    }
}

@media (max-width: 480px) {
    .files-header h2,
    .settings-container h2 {
        font-size: 24px;
    }
    
    .settings-group h3 {
        font-size: 18px;
    }
    
    .upload-btn {
        padding: 12px 20px;
        font-size: 14px;
    }
}



/* Mobile Responsive Design */
@media (max-width: 768px) {
    :root {
        --header-height: 60px;
        --sidebar-width: 100%;
    }
    
    /* Header adjustments for mobile */
    .header {
        height: var(--header-height);
        padding: 0 16px;
    }
    
    .header-left .logo span {
        display: none;
    }
    
    .header-right {
        gap: 8px;
    }
    
    .user-menu-toggle span {
        display: none;
    }
    
    .theme-toggle {
        min-width: 44px;
        min-height: 44px;
        padding: 8px;
    }
    
    .user-menu-toggle {
        min-height: 44px;
        padding: 8px 12px;
    }
    
    /* Sidebar mobile overlay */
    .sidebar {
        position: fixed;
        top: 0;
        left: -100%;
        width: 280px;
        height: 100vh;
        z-index: 1000;
        transition: left var(--transition-normal);
        box-shadow: var(--shadow-xl);
    }
    
    .sidebar.active {
        left: 0;
    }
    
    .sidebar-overlay {
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100vh;
        background: rgba(0, 0, 0, 0.5);
        z-index: 999;
        opacity: 0;
        visibility: hidden;
        transition: all var(--transition-normal);
    }
    
    .sidebar-overlay.active {
        opacity: 1;
        visibility: visible;
    }
    
    /* Main content adjustments */
    .main-content {
        margin-left: 0;
        padding-top: calc(var(--header-height) + 16px);
        padding-left: 16px;
        padding-right: 16px;
    }
    
    /* Chat interface mobile optimizations */
    .chat-container {
        height: calc(100vh - var(--header-height) - 32px);
    }
    
    .chat-messages {
        padding: 16px;
    }
    
    .message {
        margin-bottom: 16px;
    }
    
    .message-content {
        max-width: 85%;
        padding: 12px 16px;
        font-size: 14px;
        line-height: 1.5;
    }
    
    .chat-input-container {
        padding: 16px;
        gap: 8px;
    }
    
    .chat-input {
        font-size: 16px; /* Prevent zoom on iOS */
        min-height: 44px;
        padding: 12px 16px;
    }
    
    .send-button {
        margin-left: -100px;
        min-width: 44px;
        min-height: 44px;
        padding: 18px;
    }
    
    /* File management mobile */
    .files-grid {
        grid-template-columns: 1fr;
        gap: 12px;
    }
    
    .file-card {
        padding: 16px;
    }
    
    .file-actions {
        gap: 8px;
    }
    
    .file-actions .btn {
        min-height: 44px;
        padding: 8px 12px;
        font-size: 12px;
    }
    
    /* Settings mobile */
    .settings-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }
    
    .settings-card {
        padding: 20px;
    }
    
    .setting-item {
        flex-direction: column;
        align-items: flex-start;
        gap: 12px;
    }
    
    .setting-control {
        width: 100%;
    }
    
    .setting-control input,
    .setting-control select {
        width: 100%;
        min-height: 44px;
        font-size: 16px; /* Prevent zoom on iOS */
    }
    
    /* Modal adjustments for mobile */
    .modal-content {
        margin: 16px;
        max-height: calc(100vh - 32px);
        border-radius: 12px;
    }
    
    .modal-header {
        padding: 20px 20px 16px;
    }
    
    .modal-body {
        padding: 0 20px 20px;
        max-height: calc(100vh - 120px);
        overflow-y: auto;
    }
    
    /* Button improvements for touch */
    .btn {
        min-height: 44px;
        padding: 12px 20px;
        font-size: 14px;
    }
    
    .btn-sm {
        min-height: 36px;
        padding: 8px 16px;
        font-size: 12px;
    }
    
    /* Navigation tabs mobile */
    .nav-tabs {
        overflow-x: auto;
        scrollbar-width: none;
        -ms-overflow-style: none;
    }
    
    .nav-tabs::-webkit-scrollbar {
        display: none;
    }
    
    .nav-tab {
        min-width: 120px;
        white-space: nowrap;
        min-height: 44px;
    }
    
    /* Stats cards mobile */
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
    }
    
    .stat-card {
        padding: 16px;
    }
    
    .stat-value {
        font-size: 1.5rem;
    }
    
    .stat-label {
        font-size: 12px;
    }
}

@media (max-width: 480px) {
    /* Extra small screens */
    .main-content {
        padding-left: 12px;
        padding-right: 12px;
    }
    
    .chat-messages {
        padding: 12px;
    }
    
    .message-content {
        max-width: 90%;
        padding: 10px 14px;
        font-size: 13px;
    }
    
    .chat-input-container {
        padding: 12px;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .file-card {
        padding: 12px;
    }
    
    .settings-card {
        padding: 16px;
    }
    
    .modal-content {
        margin: 8px;
        border-radius: 8px;
    }
    
    .modal-header {
        padding: 16px 16px 12px;
    }
    
    .modal-body {
        padding: 0 16px 16px;
    }
}

/* Touch device optimizations */
@media (hover: none) and (pointer: coarse) {
    .btn:active {
        transform: scale(0.98);
    }
    
    .sidebar-toggle:active {
        transform: scale(0.95);
    }
    
    .nav-tab:active {
        transform: translateY(1px);
    }
    
    .file-card:active {
        transform: scale(0.98);
    }
    
    .stat-card:active {
        transform: translateY(2px);
    }
    
    .message:active {
        transform: scale(0.99);
    }
}

/* Landscape orientation adjustments */
@media (max-width: 768px) and (orientation: landscape) {
    .chat-container {
        height: calc(100vh - var(--header-height) - 16px);
    }
    
    .modal-content {
        max-height: calc(100vh - 16px);
    }
    
    .modal-body {
        max-height: calc(100vh - 80px);
    }
}

/* Bottom navigation for mobile (if needed) */
@media (max-width: 768px) {
    .mobile-bottom-nav {
        position: fixed;
        bottom: 0;
        left: 0;
        right: 0;
        background: var(--bg-card);
        border-top: 1px solid var(--border-light);
        padding: 8px 0;
        z-index: 100;
        display: none; /* Hidden by default, can be enabled if needed */
    }
    
    .mobile-bottom-nav.active {
        display: flex;
    }
    

    

    
    /* Adjust main content when bottom nav is active */
    .main-content.with-bottom-nav {
        padding-bottom: 80px;
    }
}


/* Generation Sections Styles */
.generation-container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 0 20px;
}

.generation-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 32px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--border-color);
}

.generation-header h2 {
    color: var(--text-primary);
    font-size: 28px;
    font-weight: 700;
}

.balance-info {
    display: flex;
    align-items: center;
    gap: 8px;
    background: var(--bg-card);
    padding: 12px 20px;
    border-radius: 12px;
    border: 1px solid var(--border-color);
}

.balance-info i {
    color: var(--accent-primary);
    font-size: 18px;
}

.generation-form {
    background: var(--bg-card);
    border-radius: 20px;
    padding: 32px;
    margin-bottom: 32px;
    border: 1px solid var(--border-color);
}

.prompt-section {
    margin-bottom: 24px;
}

.prompt-section label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: var(--text-primary);
}

.prompt-section textarea {
    width: 100%;
    min-height: 120px;
    padding: 16px;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    background: var(--bg-primary);
    color: var(--text-primary);
    font-family: inherit;
    resize: vertical;
    transition: border-color 0.3s ease;
}

.prompt-section textarea:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px rgba(55, 114, 255, 0.1);
}

.generation-options {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin-bottom: 24px;
}

.option-group {
    display: flex;
    flex-direction: column;
}

.option-group label {
    margin-bottom: 8px;
    font-weight: 600;
    color: var(--text-primary);
}

.option-group select {
    padding: 12px 16px;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    background: var(--bg-primary);
    color: var(--text-primary);
    font-family: inherit;
    cursor: pointer;
    transition: border-color 0.3s ease;
}

.option-group select:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px rgba(55, 114, 255, 0.1);
}

.generate-btn, .process-btn {
    background: var(--gradient-primary);
    color: white;
    border: none;
    padding: 16px 32px;
    border-radius: 12px;
    font-weight: 600;
    font-size: 16px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: all 0.3s ease;
    margin: 0 auto;
}

/* Add spacing above the voice processing button so it does not touch the select fields */
.voice-options .process-btn {
    margin: 20px auto 0;
}

.generate-btn:hover, .process-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-primary);
}

.generate-btn:disabled, .process-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

.generation-results {
    background: var(--bg-card);
    border-radius: 20px;
    padding: 32px;
    border: 1px solid var(--border-color);
    display: none;
}

.generation-results.active {
    display: block;
}

.results-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--border-color);
}

/* Loading indicator shown during image generation.  It uses flexbox to
   horizontally align the spinning icon and the text.  The color is
   inherited from the primary accent colour so it is visible on both
   light and dark themes. */
.image-loading-indicator {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--primary-color);
    font-size: 14px;
}

/* Loading indicator shown during video generation.  It mirrors the
   appearance of the image loading indicator but is used in the video
   generation section. */
.video-loading-indicator {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--primary-color);
    font-size: 14px;
}

/* Style for generated video previews in the video gallery.  Videos
   occupy full width of their grid cell, maintain aspect ratio and
   have subtle rounding and shadow for visual separation. */
.generated-video {
    width: 100%;
    height: auto;
    max-width: 100%;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.results-header h3 {
    color: var(--text-primary);
    font-size: 20px;
    font-weight: 600;
}

.copy-btn {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 8px 16px;
    border-radius: 8px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: all 0.3s ease;
}

.copy-btn:hover {
    background: var(--accent-primary);
    color: white;
    border-color: var(--accent-primary);
}

.results-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 20px;
}

.result-item {
    background: var(--bg-primary);
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid var(--border-color);
    transition: transform 0.3s ease;
}

.result-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-card);
}

.result-item img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.result-item video {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.result-actions {
    padding: 16px;
    display: flex;
    gap: 8px;
}

.result-actions button {
    flex: 1;
    padding: 8px 12px;
    border: 1px solid var(--border-color);
    background: var(--bg-card);
    color: var(--text-primary);
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.result-actions button:hover {
    background: var(--accent-primary);
    color: white;
    border-color: var(--accent-primary);
}

/* Voice Section Styles */
.voice-container {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 20px;
}

.voice-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 32px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--border-color);
}

.voice-header h2 {
    color: var(--text-primary);
    font-size: 28px;
    font-weight: 700;
}

.voice-upload {
    margin-bottom: 32px;
}

.upload-area {
    background: var(--bg-card);
    border: 2px dashed var(--border-color);
    border-radius: 20px;
    padding: 48px 32px;
    text-align: center;
    transition: all 0.3s ease;
    cursor: pointer;
}

.upload-area:hover {
    border-color: var(--accent-primary);
    background: rgba(55, 114, 255, 0.05);
}

.upload-area.dragover {
    border-color: var(--accent-primary);
    background: rgba(55, 114, 255, 0.1);
}

.upload-area i {
    font-size: 48px;
    color: var(--accent-primary);
    margin-bottom: 16px;
}

.upload-area h3 {
    color: var(--text-primary);
    margin-bottom: 8px;
    font-size: 20px;
}

.upload-area p {
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.upload-voice-btn {
    background: var(--gradient-primary);
    color: white;
    border: none;
    padding: 12px 24px;
    border-radius: 12px;
    font-weight: 600;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-top: 16px;
    transition: all 0.3s ease;
}

.upload-voice-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-primary);
}

.voice-options {
    background: var(--bg-card);
    border-radius: 20px;
    padding: 32px;
    margin-bottom: 32px;
    border: 1px solid var(--border-color);
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    align-items: end;
}

.voice-results {
    background: var(--bg-card);
    border-radius: 20px;
    padding: 32px;
    border: 1px solid var(--border-color);
    display: none;
}

.voice-results.active {
    display: block;
}

.transcription-content {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 24px;
    min-height: 200px;
    color: var(--text-primary);
    line-height: 1.6;
    white-space: pre-wrap;
}

/* Purchase Section Styles */
.purchase-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.purchase-header {
    text-align: center;
    margin-bottom: 40px;
}

.purchase-header h2 {
    color: var(--text-primary);
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 8px;
}

.purchase-header p {
    color: var(--text-secondary);
    font-size: 18px;
}

.current-balance {
    margin-bottom: 48px;
}

.balance-card {
    background: var(--gradient-primary);
    border-radius: 20px;
    padding: 32px;
    color: white;
    text-align: center;
}

.balance-card h3 {
    font-size: 24px;
    margin-bottom: 24px;
}

.balance-items {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
}

.balance-item {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    padding: 20px;
    display: flex;
    align-items: center;
    gap: 12px;
}

.balance-item i {
    font-size: 24px;
    opacity: 0.9;
}

.purchase-packages {
    margin-bottom: 48px;
}

.purchase-packages h3 {
    color: var(--text-primary);
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 24px;
    text-align: center;
}

.packages-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 24px;
}

.package-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 32px;
    text-align: center;
    position: relative;
    transition: all 0.3s ease;
}

.package-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-card);
}

.package-card.popular {
    border-color: var(--accent-primary);
    transform: scale(1.05);
}

.package-card.popular:hover {
    transform: scale(1.05) translateY(-8px);
}

.package-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--gradient-primary);
    color: white;
    padding: 6px 20px;
    border-radius: 20px;
    font-size: 14px;
    font-weight: 600;
}

.package-header {
    margin-bottom: 24px;
}

.package-header h4 {
    color: var(--text-primary);
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 8px;
}

.package-price {
    font-size: 36px;
    font-weight: 700;
    color: var(--accent-primary);
}

.package-content ul {
    list-style: none;
    margin-bottom: 24px;
}

.package-content li {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 8px 0;
    color: var(--text-primary);
}

.package-content li i {
    color: var(--accent-primary);
    width: 20px;
}

.buy-btn {
    background: var(--gradient-primary);
    color: white;
    border: none;
    padding: 16px 32px;
    border-radius: 12px;
    font-weight: 600;
    font-size: 16px;
    cursor: pointer;
    width: 100%;
    transition: all 0.3s ease;
}

.buy-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-primary);
}

.buy-btn.small {
    padding: 12px 20px;
    font-size: 14px;
    width: auto;
}

.individual-purchases h3 {
    color: var(--text-primary);
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 24px;
    text-align: center;
}

.individual-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
}

.individual-item {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    transition: all 0.3s ease;
}

.individual-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-card);
}

.individual-item i {
    color: var(--accent-primary);
    font-size: 24px;
    margin-right: 12px;
}

.individual-item span {
    flex: 1;
    color: var(--text-primary);
    font-weight: 500;
}

/* Loading States */
.loading-generation {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
    padding: 48px;
    color: var(--text-secondary);
}

.loading-generation i {
    font-size: 48px;
    color: var(--accent-primary);
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

/* Mobile Responsive for New Sections */
@media (max-width: 768px) {
    .generation-header {
        flex-direction: column;
        gap: 16px;
        text-align: center;
    }
    
    .generation-options {
        grid-template-columns: 1fr;
    }
    
    .voice-header {
        flex-direction: column;
        gap: 16px;
        text-align: center;
    }
    
    .upload-area {
        padding: 32px 20px;
    }
    
    .voice-options {
        grid-template-columns: 1fr;
    }
    
    .packages-grid {
        grid-template-columns: 1fr;
    }
    
    .package-card.popular {
        transform: none;
    }
    
    .package-card.popular:hover {
        transform: translateY(-8px);
    }
    
    .balance-items {
        grid-template-columns: 1fr;
    }
    
    .individual-grid {
        grid-template-columns: 1fr;
    }
    
    .individual-item {
        flex-direction: column;
        gap: 16px;
        text-align: center;
    }
    
    .results-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .generation-form,
    .voice-options,
    .generation-results,
    .voice-results {
        padding: 20px;
    }
    
    .balance-card {
        padding: 24px;
    }
    
    .package-card {
        padding: 24px;
    }
    
    .upload-area {
        padding: 24px 16px;
    }
    
    .upload-area i {
        font-size: 36px;
    }
    
    .upload-area h3 {
        font-size: 18px;
    }
}

/* Generation Layout Styles */
.generation-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    height: calc(100vh - 120px);
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
}

.generation-chat-panel {
    background: var(--bg-card);
    border-radius: 20px;
    border: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.generation-results-panel {
    background: var(--bg-card);
    border-radius: 20px;
    border: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.chat-header {
    padding: 20px 24px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: var(--bg-secondary);
}

.chat-header h3 {
    color: var(--text-primary);
    font-size: 18px;
    font-weight: 600;
    margin: 0;
    display: flex;
    align-items: center;
    gap: 8px;
}

.chat-header .balance-info {
    background: var(--bg-primary);
    padding: 8px 16px;
    border-radius: 20px;
    border: 1px solid var(--border-color);
    font-size: 14px;
    font-weight: 500;
}

.generation-chat-messages {
    flex: 1;
    padding: 20px;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.chat-message {
    display: flex;
    gap: 12px;
    align-items: flex-start;
}

.chat-message.user {
    flex-direction: row-reverse;
}

.message-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--gradient-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 16px;
    flex-shrink: 0;
}

.chat-message.user .message-avatar {
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border: 2px solid var(--border-color);
}

.message-content {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 16px;
    max-width: 80%;
    color: var(--text-primary);
    line-height: 1.5;
}

.chat-message.user .message-content {
    background: var(--accent-primary);
    color: white;
    border-color: var(--accent-primary);
}

.message-suggestions {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 12px;
}

.suggestion-btn {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 8px 12px;
    border-radius: 20px;
    font-size: 12px;
    cursor: pointer;
    transition: all 0.3s ease;
    white-space: nowrap;
}

.suggestion-btn:hover {
    background: var(--accent-primary);
    color: white;
    border-color: var(--accent-primary);
    transform: translateY(-1px);
}

.generation-input-container {
    padding: 20px;
    border-top: 1px solid var(--border-color);
    background: var(--bg-secondary);
}

.generation-options-compact {
    display: flex;
    gap: 8px;
    margin-bottom: 12px;
}

.compact-select {
    flex: 1;
    padding: 8px 12px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    background: var(--bg-primary);
    color: var(--text-primary);
    font-size: 12px;
    cursor: pointer;
    transition: border-color 0.3s ease;
}

.compact-select:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 2px rgba(55, 114, 255, 0.1);
}

.generation-input-row {
    display: flex;
    gap: 12px;
    align-items: flex-end;
}

.generation-input-row textarea {
    flex: 1;
    padding: 12px 16px;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    background: var(--bg-primary);
    color: var(--text-primary);
    font-family: inherit;
    resize: none;
    transition: border-color 0.3s ease;
}

.generation-input-row textarea:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 2px rgba(55, 114, 255, 0.1);
}

.generation-input-row .generate-btn {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    margin: 0;
    flex-shrink: 0;
}

.results-header {
    padding: 20px 24px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: var(--bg-secondary);
}

.results-header h3 {
    color: var(--text-primary);
    font-size: 18px;
    font-weight: 600;
    margin: 0;
}

.results-controls {
    display: flex;
    gap: 8px;
}

.control-btn {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    padding: 8px 12px;
    border-radius: 8px;
    font-size: 12px;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 4px;
}

.control-btn:hover {
    background: var(--accent-primary);
    color: white;
    border-color: var(--accent-primary);
}

.results-gallery {
    flex: 1;
    padding: 20px;
    overflow-y: auto;
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 16px;
    align-content: start;
}

.video-gallery {
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
}

.empty-gallery {
    grid-column: 1 / -1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: var(--text-secondary);
    padding: 60px 20px;
}

.empty-gallery i {
    font-size: 48px;
    color: var(--accent-primary);
    margin-bottom: 16px;
    opacity: 0.7;
}

.empty-gallery p {
    font-size: 16px;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.empty-gallery small {
    font-size: 14px;
    opacity: 0.8;
}

.gallery-item {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    overflow: hidden;
    transition: all 0.3s ease;
    cursor: pointer;
}

.gallery-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-card);
    border-color: var(--accent-primary);
}

.gallery-item img,
.gallery-item video {
    width: 100%;
    height: 150px;
    object-fit: cover;
    display: block;
}

.video-gallery .gallery-item video {
    height: 180px;
}

.gallery-item-info {
    padding: 12px;
}

.gallery-item-title {
    font-size: 12px;
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: 4px;
    line-height: 1.3;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.gallery-item-meta {
    font-size: 10px;
    color: var(--text-secondary);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.gallery-item-actions {
    display: flex;
    gap: 4px;
    margin-top: 8px;
}

.gallery-action-btn {
    flex: 1;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    padding: 6px 8px;
    border-radius: 6px;
    font-size: 10px;
    cursor: pointer;
    transition: all 0.3s ease;
    text-align: center;
}

.gallery-action-btn:hover {
    background: var(--accent-primary);
    color: white;
    border-color: var(--accent-primary);
}

/* Loading States for Generation */
.generation-loading {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 40px;
    color: var(--text-secondary);
}

.generation-loading i {
    font-size: 32px;
    color: var(--accent-primary);
    margin-bottom: 12px;
    animation: pulse 2s infinite;
}

.generation-loading p {
    font-size: 14px;
    text-align: center;
}

/* Mobile Responsive for Generation Layout */
@media (max-width: 1024px) {
    .generation-layout {
        grid-template-columns: 1fr;
        height: auto;
        gap: 16px;
    }
    
    .generation-chat-panel {
        order: 1;
        min-height: 400px;
    }
    
    .generation-results-panel {
        order: 2;
        min-height: 300px;
    }
    
    .results-gallery {
        grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    }
    
    .video-gallery {
        grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    }
}

@media (max-width: 768px) {
    #imageGenSection.active,
    #videoGenSection.active {
        display: flex;
        flex-direction: column;
    }
    
    .generation-layout {
        padding: 0 16px;
        gap: 12px;
    }
    
    .chat-header,
    .results-header {
        padding: 16px 20px;
        flex-direction: column;
        gap: 12px;
        text-align: center;
    }
    
    .generation-chat-messages {
        padding: 16px;
    }
    
    .generation-input-container {
        padding: 16px;
    }
    
    .generation-options-compact {
        flex-direction: column;
        gap: 8px;
    }
    
    .compact-select {
        font-size: 14px;
        padding: 10px 12px;
    }
    
    .generation-input-row {
        flex-direction: column;
        gap: 12px;
    }
    
    .generation-input-row .generate-btn {
        width: 100%;
        height: 44px;
        border-radius: 12px;
    }
    
    .results-gallery {
        grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
        gap: 12px;
        padding: 16px;
    }
    
    .video-gallery {
        grid-template-columns: 1fr;
    }
    
    .message-content {
        max-width: 90%;
    }
    
    .message-suggestions {
        flex-direction: column;
    }
    
    .suggestion-btn {
        text-align: left;
        padding: 10px 12px;
        font-size: 13px;
    }
    
    .results-controls {
        flex-direction: column;
        width: 100%;
    }
    
    .control-btn {
        justify-content: center;
        padding: 10px 16px;
        font-size: 13px;
    }
}

@media (max-width: 480px) {
    .generation-layout {
        padding: 0 12px;
    }
    
    .chat-header h3 {
        font-size: 16px;
    }
    
    .results-header h3 {
        font-size: 16px;
    }
    
    .generation-chat-messages {
        padding: 12px;
    }
    
    .generation-input-container {
        padding: 12px;
    }
    
    .message-avatar {
        width: 32px;
        height: 32px;
        font-size: 14px;
    }
    
    .message-content {
        padding: 12px;
        font-size: 14px;
    }
    
    .results-gallery {
        grid-template-columns: 1fr;
        gap: 8px;
        padding: 12px;
    }
    
    .gallery-item img,
    .gallery-item video {
        height: 120px;
    }
    
    .video-gallery .gallery-item video {
        height: 140px;
    }
}


/* === Mobile Navigation Drawer Styles === */

/* Mobile header title */
.mobile-header-title {
    display: none;
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
    margin-right: 16px;
}

/* Mobile menu button */
.mobile-menu-btn {
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    width: 44px;
    height: 44px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    border-radius: 12px;
    transition: all 0.3s ease;
    position: relative;
}

.mobile-menu-btn:hover {
    background: var(--bg-hover);
    transform: scale(1.05);
}

.hamburger-line {
    width: 24px;
    height: 3px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    transform-origin: center;
}

.hamburger-line:not(:last-child) {
    margin-bottom: 4px;
}

/* Hamburger animation when active */
.mobile-menu-btn.active .hamburger-line:nth-child(1) {
    transform: rotate(45deg) translate(6px, 6px);
}

.mobile-menu-btn.active .hamburger-line:nth-child(2) {
    opacity: 0;
    transform: scale(0);
}

.mobile-menu-btn.active .hamburger-line:nth-child(3) {
    transform: rotate(-45deg) translate(6px, -6px);
}

/* Mobile drawer */
.mobile-drawer {
    position: fixed !important;
    top: 0 !important;
    right: 0 !important;
    width: 100% !important;
    height: 100vh !important;
    z-index: 99999 !important;
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.3s ease;
    background: rgba(0, 0, 0, 0.5);
}

.mobile-drawer.active {
    opacity: 1 !important;
    pointer-events: all !important;
    display: block !important;
}

.mobile-drawer-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(8px);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.mobile-drawer.active .mobile-drawer-overlay {
    opacity: 1;
}

.mobile-drawer-content {
    position: absolute !important;
    top: 0 !important;
    right: 0 !important;
    width: 320px !important;
    max-width: 85vw !important;
    height: 100vh !important;
    background: var(--bg-card) !important;
    border-left: 1px solid var(--border-light) !important;
    box-shadow: -10px 0 30px rgba(0, 0, 0, 0.2) !important;
    transform: translateX(100%) !important;
    transition: transform 0.3s ease-in-out !important;
    display: flex !important;
    flex-direction: column !important;
    overflow: hidden !important;
    z-index: 100000 !important;
    will-change: transform !important;
}

.mobile-drawer.active .mobile-drawer-content {
    transform: translateX(0) !important;
}

/* Drawer header */
.mobile-drawer-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 24px;
    border-bottom: 1px solid var(--border-light);
    background: var(--bg-secondary);
}

.mobile-drawer-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 20px;
    font-weight: 700;
    color: var(--primary-color);
}

.mobile-drawer-logo i {
    font-size: 24px;
}

.mobile-drawer-close {
    width: 40px;
    height: 40px;
    border: none;
    background: var(--bg-hover);
    color: var(--text-secondary);
    border-radius: 10px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.mobile-drawer-close:hover {
    background: var(--error-color);
    color: white;
    transform: scale(1.1);
}

/* Drawer navigation */
.mobile-drawer-nav {
    flex: 1;
    padding: 16px 0;
    overflow-y: auto;
}

.mobile-drawer .mobile-nav-item {
    display: flex !important;
    flex-direction: row !important;
    align-items: center;
    justify-content: flex-start;
    padding: 20px 24px;
    text-decoration: none;
    color: var(--text-primary);
    transition: all 0.3s ease;
    border-left: 4px solid transparent;
    position: relative;
    overflow: hidden;
    min-height: 72px;
}

.mobile-nav-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 0;
    height: 100%;
    background: linear-gradient(90deg, var(--primary-color), var(--primary-light));
    opacity: 0.1;
    transition: width 0.3s ease;
}

.mobile-nav-item:hover::before,
.mobile-nav-item.active::before {
    width: 100%;
}

.mobile-nav-item:hover {
    background: var(--bg-hover);
    transform: translateX(8px);
}

.mobile-nav-item.active {
    border-left-color: var(--primary-color);
    background: var(--bg-hover);
    color: var(--primary-color);
}

.mobile-nav-icon {
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    margin-right: 16px;
    transition: all 0.3s ease;
    position: relative;
    z-index: 1;
}



.mobile-nav-icon {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    background: var(--bg-tertiary);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    margin-right: 16px;
    transition: all 0.3s ease;
    position: relative;
    z-index: 1;
}

.mobile-nav-icon i {
    font-size: 20px;
    color: var(--text-primary);
}

.mobile-drawer .mobile-nav-title,
.mobile-nav-item .mobile-nav-title,
span.mobile-nav-title {
    font-size: 18px !important;
    font-weight: 600 !important;
    color: var(--text-primary) !important;
    line-height: 1.2 !important;
    margin: 0 !important;
    position: relative;
    z-index: 1;
    flex: 1;
    text-align: left;
    display: block !important;
}

.mobile-nav-arrow {
    font-size: 16px;
    color: var(--text-secondary);
    transition: all 0.3s ease;
    position: relative;
    z-index: 1;
    flex-shrink: 0;
    margin-left: 8px;
}

.mobile-nav-item:hover .mobile-nav-arrow,
.mobile-nav-item.active .mobile-nav-arrow {
    color: var(--primary-color);
    transform: translateX(4px);
}

.mobile-nav-item:hover .mobile-nav-icon,
.mobile-nav-item.active .mobile-nav-icon {
    background: var(--primary-color);
    color: white;
    transform: scale(1.05);
    box-shadow: 0 4px 12px rgba(55, 114, 255, 0.3);
}

.mobile-nav-item:hover .mobile-nav-icon i,
.mobile-nav-item.active .mobile-nav-icon i {
    color: white;
}



/* Drawer footer */
.mobile-drawer-footer {
    padding: 20px 24px;
    border-top: 1px solid var(--border-light);
    background: var(--bg-secondary);
    display: flex;
    gap: 12px;
}

.mobile-footer-item {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    padding: 12px 8px;
    background: var(--bg-card);
    border: 1px solid var(--border-light);
    border-radius: 12px;
    text-decoration: none;
    color: var(--text-secondary);
    font-size: 12px;
    font-weight: 500;
    transition: all 0.3s ease;
    cursor: pointer;
}

.mobile-footer-item:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(55, 114, 255, 0.3);
}

.mobile-footer-item i {
    font-size: 16px;
}

/* Hide mobile chat header buttons on desktop */
.mobile-chat-header-left,
.mobile-chat-header-right {
    display: none !important;
}

/* Ensure mobile chat buttons are visible on mobile devices */
@media (max-width: 1024px) {
    .mobile-chat-header-left,
    .mobile-chat-header-right {
        display: flex !important;
    }
}

/* Mobile responsive rules */
@media (max-width: 1024px) {
    .sidebar { 
        display: none !important; 
    }
    .sidebar-toggle { 
        display: none !important; 
    }
    .mobile-header-title {
        display: block !important;
    }
    .mobile-menu-btn { 
        display: flex !important; 
    }
    .theme-toggle {
        display: none !important;
    }
    .user-menu {
        display: none !important;
    }
    
    /* Mobile fullscreen chat */
    body.chat-active {
        overflow: hidden !important;
    }
    
    body.chat-active .header {
        display: none !important;
    }
    
    body.chat-active .main-content {
        padding-top: 0 !important;
    }
    
    #chatSection.active {
        position: fixed !important;
        top: 0 !important;
        left: 0 !important;
        right: 0 !important;
        bottom: 0 !important;
        z-index: 9999 !important;
        background: var(--bg-primary) !important;
    }
    
    #chatSection.active .content-section-inner {
        padding: 0 !important;
        margin: 0 !important;
        height: 100vh !important;
        max-height: 100vh !important;
    }
    
    #chatSection.active .chat-container {
        margin: 0 !important;
        border-radius: 0 !important;
        box-shadow: none !important;
        border: none !important;
        height: 100vh !important;
        max-height: 100vh !important;
        background: var(--bg-primary) !important;
    }
    
    #chatSection.active .chat-header {
        display: flex !important;
        flex-direction: row !important;
        position: fixed !important;
        top: 0 !important;
        left: 0 !important;
        right: 0 !important;
        z-index: 10000 !important;
        background: var(--bg-card) !important;
        border-bottom: 1px solid var(--border-light) !important;
        padding: 8px 16px !important;
        height: 60px !important;
        align-items: center !important;
        justify-content: space-between !important;
        box-sizing: border-box !important;
    }
    
    #chatSection.active .chat-header h2 {
        font-size: 18px !important;
        margin: 0 !important;
        flex: 1 !important;
        text-align: center !important;
        padding: 0 8px !important;
    }
    
    #chatSection.active .chat-header-controls {
        display: none !important;
    }
    
    .mobile-chat-header-left {
        display: flex !important;
        flex-direction: row !important;
        align-items: center !important;
        flex-shrink: 0 !important;
    }
    
    .mobile-chat-header-right {
        display: flex !important;
        flex-direction: row !important;
        align-items: center !important;
        flex-shrink: 0 !important;
    }
    
    .mobile-chat-menu-btn,
    .mobile-clear-chat-btn {
        background: none !important;
        border: none !important;
        color: var(--text-primary) !important;
        font-size: 18px !important;
        padding: 8px !important;
        cursor: pointer !important;
        border-radius: 50% !important;
        transition: all 0.3s ease !important;
        display: flex !important;
        align-items: center !important;
        justify-content: center !important;
        width: 36px !important;
        height: 36px !important;
    }
    
    .mobile-chat-menu-btn:hover,
    .mobile-clear-chat-btn:hover {
        background: var(--bg-hover) !important;
        color: var(--primary-color) !important;
    }
    
    .mobile-clear-chat-btn {
        color: var(--error-color) !important;
    }
    
    .mobile-clear-chat-btn:hover {
        background: rgba(239, 68, 68, 0.1) !important;
        color: var(--error-color) !important;
    }
    
    #chatSection.active .chat-messages {
        padding: 16px 16px 100px 16px !important;
        margin-top: 60px !important;
        height: calc(100vh - 60px) !important;
        overflow-y: auto !important;
        -webkit-overflow-scrolling: touch !important;
        box-sizing: border-box !important;
    }
    
    #chatSection.active .chat-input-container {
        position: fixed !important;
        bottom: 0 !important;
        left: 0 !important;
        right: 0 !important;
        background: var(--bg-card) !important;
        border-top: 1px solid var(--border-light) !important;
        padding: 12px 16px !important;
        margin: 0 !important;
        border-radius: 0 !important;
        box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.1) !important;
        z-index: 10000 !important;
        height: 80px !important;
        box-sizing: border-box !important;
    }
    
    #chatSection.active .chat-input {
        border-radius: 25px !important;
        border: 2px solid var(--border-light) !important;
        background: var(--bg-secondary) !important;
        padding: 10px 16px !important;
        display: flex !important;
        align-items: center !important;
        gap: 12px !important;
        height: 56px !important;
        box-sizing: border-box !important;
    }
    
    #chatSection.active .chat-input input {
        border: none !important;
        background: transparent !important;
        font-size: 16px !important;
        padding: 0 !important;
        flex: 1 !important;
        outline: none !important;
    }
    
    #chatSection.active .send-btn {
        background: var(--primary-color) !important;
        color: white !important;
        border: none !important;
        border-radius: 50% !important;
        width: 36px !important;
        height: 36px !important;
        display: flex !important;
        align-items: center !important;
        justify-content: center !important;
        font-size: 12px !important;
        flex-shrink: 0 !important;
    }
}

/* Extra small screens */
@media (max-width: 400px) {
    .mobile-drawer-content {
        width: 280px;
        max-width: 90vw;
    }
    
    .mobile-drawer .mobile-nav-item {
        display: flex !important;
        flex-direction: row !important;
        padding: 18px 20px;
        min-height: 64px;
    }
    
    .mobile-drawer .mobile-nav-title,
    .mobile-nav-item .mobile-nav-title,
    span.mobile-nav-title {
        font-size: 16px !important;
    }
    
    .mobile-nav-icon {
        width: 36px;
        height: 36px;
        margin-right: 12px;
    }
    
    .mobile-nav-icon i {
        font-size: 18px;
    }
    
    .mobile-nav-arrow {
        font-size: 14px;
    }
    
    .mobile-header-title {
        font-size: 16px;
        margin-right: 12px;
    }
}

/* Смещаем футер вправо, чтобы его не перекрывал сайдбар */
@media (min-width: 1025px) {
  .footer {
    margin-left: var(--sidebar-width);
  }
  .sidebar.collapsed ~ .footer {
    margin-left: var(--sidebar-collapsed-width);
  }
}

@media (max-width: 1024px) {
  .footer {
    margin-left: 0;
  }
}


/* Дополнительные правила для принудительного отображения мобильной шторки */
@media (max-width: 1024px) {
    .mobile-drawer {
        display: block !important;
        visibility: visible !important;
    }
    
    .mobile-drawer.active {
        display: block !important;
        visibility: visible !important;
        opacity: 1 !important;
        pointer-events: all !important;
    }
    
    .mobile-drawer.active .mobile-drawer-content {
        display: flex !important;
        visibility: visible !important;
        transform: translateX(0) !important;
    }
    
    .mobile-drawer-content {
        display: flex !important;
        visibility: visible !important;
    }
}

/* Принудительные стили для отладки */
.mobile-drawer[style*="display: block"] {
    display: block !important;
}

.mobile-drawer.active[style*="opacity: 1"] {
    opacity: 1 !important;
}

/* Support Button Styles */
.support-btn {
    background: linear-gradient(135deg, #0088cc, #229ed9) !important;
    color: white !important;
    text-decoration: none;
    padding: 8px 16px;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: all 0.2s ease;
    border: none;
    cursor: pointer;
}

.support-btn:hover {
    background: linear-gradient(135deg, #006699, #1a7db8) !important;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(0, 136, 204, 0.3);
}

.support-btn i {
    color: white;
}

/* Mobile adjustments for support button */
@media (max-width: 768px) {
    .support-btn span {
        display: none;
    }
}

/* Tour Modal Styles */
.modal {
    display: none;
    position: fixed;
    z-index: 10000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(5px);
    animation: fadeIn 0.3s ease-out;
}

.modal-content {
    background-color: var(--bg-card);
    margin: 5% auto;
    padding: 30px;
    border: none;
    border-radius: 16px;
    width: 90%;
    max-width: 600px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
    position: relative;
    animation: slideIn 0.3s ease-out;
}

.close-button {
    color: var(--text-secondary);
    float: right;
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
    position: absolute;
    top: 15px;
    right: 20px;
    transition: color 0.2s ease;
}

.close-button:hover,
.close-button:focus {
    color: var(--text-primary);
}

.modal-content h2 {
    color: var(--text-primary);
    margin-bottom: 10px;
    font-size: 24px;
    font-weight: 700;
}

.modal-content p {
    color: var(--text-secondary);
    margin-bottom: 20px;
    line-height: 1.6;
}

.tour-slide {
    display: none;
    text-align: center;
    animation: slideInRight 0.3s ease-out;
}

.tour-slide.active {
    display: block;
}

.tour-slide h3 {
    color: var(--primary-color);
    margin-bottom: 15px;
    font-size: 20px;
    font-weight: 600;
}

.tour-slide p {
    margin-bottom: 20px;
    font-size: 16px;
}

.tour-image {
    width: 100%;
    max-width: 400px;
    height: auto;
    border-radius: 12px;
    margin: 20px 0;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
    border: 1px solid var(--border-light);
}

.tour-buttons {
    display: flex;
    gap: 15px;
    justify-content: center;
    margin: 20px 0;
    flex-wrap: wrap;
}

.btn {
    padding: 12px 24px;
    border: none;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.btn-telegram {
    background: linear-gradient(135deg, #0088cc, #229ed9);
    color: white;
}

.btn-telegram:hover {
    background: linear-gradient(135deg, #006699, #1a7db8);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(0, 136, 204, 0.3);
}

.tour-next-button,
.tour-prev-button,
.tour-finish-button {
    background: var(--primary-color);
    color: white;
    border: none;
    padding: 10px 20px;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    margin: 10px 5px;
    transition: all 0.2s ease;
}

.tour-next-button:hover,
.tour-finish-button:hover {
    background: var(--primary-dark);
    transform: translateY(-1px);
}

.tour-prev-button {
    background: var(--text-secondary);
}

.tour-prev-button:hover {
    background: var(--text-primary);
    transform: translateY(-1px);
}

/* Animations */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(-50px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* Mobile responsiveness */
@media (max-width: 768px) {
    .modal-content {
        margin: 10% auto;
        padding: 20px;
        width: 95%;
    }
    
    .modal-content h2 {
        font-size: 20px;
    }
    
    .tour-slide h3 {
        font-size: 18px;
    }
    
    .tour-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .btn {
        width: 100%;
        max-width: 250px;
        justify-content: center;
    }
}

/* Dark theme support */
[data-theme="dark"] .modal-content {
    background-color: var(--bg-card);
    border: 1px solid var(--border-light);
}

[data-theme="dark"] .tour-image {
    border-color: var(--border-light);
    opacity: 0.9;
}


/* Files Section Styles - Simplified Version */
.files-container-simple {
    max-width: 1200px;
    margin: 0 auto;
    background: var(--bg-card);
    border-radius: 12px;
    overflow: hidden;
}

.files-header-simple {
    padding: 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: var(--bg-card);
}

.files-header-simple h2 {
    font-size: 24px;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
}

.upload-btn-simple {
    background: var(--primary-color);
    border: none;
    color: var(--text-white);
    padding: 12px 20px;
    border-radius: 8px;
    cursor: pointer;
    font-weight: 500;
    font-size: 14px;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: background-color 0.2s ease;
}

.upload-btn-simple:hover {
    background: var(--primary-dark);
}

.files-list-simple {
    padding: 24px;
    min-height: 300px;
    background: var(--bg-card);
}

.empty-state-simple {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    text-align: center;
    padding: 60px 20px;
}

.empty-state-simple i {
    font-size: 48px;
    color: var(--text-muted);
    margin-bottom: 16px;
}

.empty-state-simple p {
    font-size: 16px;
    font-weight: 500;
    margin: 0 0 8px 0;
}

.empty-state-simple span {
    font-size: 14px;
    color: var(--text-muted);
}

/* Simplified File Item Styles */
.file-item-simple {
    display: flex;
    align-items: center;
    padding: 16px;
    background: var(--bg-card);
    border-radius: 8px;
    margin-bottom: 12px;
    transition: background-color 0.2s ease;
}

.file-item-simple:hover {
    background: var(--bg-hover);
}

.file-icon-simple {
    width: 40px;
    height: 40px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    color: var(--text-white);
    background: var(--primary-color);
    margin-right: 16px;
    flex-shrink: 0;
}

.file-info-simple {
    flex: 1;
    min-width: 0;
}

.file-name-simple {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: 4px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.file-meta-simple {
    font-size: 12px;
    color: var(--text-secondary);
}

.file-actions-simple {
    display: flex;
    gap: 8px;
    margin-left: 16px;
}

.file-action-simple {
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    padding: 8px;
    border-radius: 6px;
    transition: all 0.2s ease;
    font-size: 14px;
}

.file-action-simple:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

/* Responsive adjustments for simplified files */
@media (max-width: 768px) {
    .files-container-simple {
        margin: 0 16px;
        border-radius: 8px;
    }
    
    .files-header-simple {
        padding: 20px;
        flex-direction: column;
        gap: 16px;
        align-items: stretch;
    }
    
    .files-header-simple h2 {
        font-size: 20px;
        text-align: center;
    }
    
    .upload-btn-simple {
        justify-content: center;
    }
    
    .files-list-simple {
        padding: 20px;
    }
    
    .file-item-simple {
        padding: 12px;
    }
    
    .file-actions-simple {
        margin-left: 8px;
    }
    
    .file-action-simple {
        padding: 6px;
        font-size: 12px;
    }
}

@media (max-width: 480px) {
    .files-container-simple {
        margin: 0 12px;
    }
    
    .files-header-simple {
        padding: 16px;
    }
    
    .files-list-simple {
        padding: 16px;
    }
    
    .file-item-simple {
        padding: 10px;
    }
    
    .file-icon-simple {
        width: 36px;
        height: 36px;
        font-size: 16px;
        margin-right: 12px;
    }
    
    .file-name-simple {
        font-size: 13px;
    }
    
    .file-meta-simple {
        font-size: 11px;
    }
}

/* Clean Files Section - Cards with Image Focus */
.files-container-clean {
    max-width: 1200px;
    margin: 0 auto;
    background: var(--bg-card);
    border-radius: 12px;
    overflow: hidden;
}

.files-header-clean {
    padding: 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: var(--bg-card);
}

.files-header-clean h2 {
    font-size: 24px;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
}

.upload-btn-clean {
    background: var(--primary-color);
    border: none;
    color: var(--text-white);
    padding: 12px 20px;
    border-radius: 8px;
    cursor: pointer;
    font-weight: 500;
    font-size: 14px;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: background-color 0.2s ease;
}

.upload-btn-clean:hover {
    background: var(--primary-dark);
}

.files-grid-clean {
    padding: 24px;
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 16px;
    min-height: 300px;
    background: var(--bg-card);
}

.empty-state-clean {
    grid-column: 1 / -1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    text-align: center;
    padding: 60px 20px;
}

.empty-state-clean i {
    font-size: 48px;
    color: var(--text-muted);
    margin-bottom: 16px;
}

.empty-state-clean p {
    font-size: 16px;
    font-weight: 500;
    margin: 0 0 8px 0;
}

.empty-state-clean span {
    font-size: 14px;
    color: var(--text-muted);
}

/* Clean File Card - One Line Design with Image Focus */
.file-card-clean {
    background: var(--bg-card);
    border-radius: 12px;
    overflow: hidden;
    transition: all 0.2s ease;
    cursor: pointer;
    border: 1px solid var(--border-light);
    position: relative;
}

.file-card-clean:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
}

/* Image-focused layout */
.file-card-clean.has-image {
    display: flex;
    flex-direction: column;
    height: 200px;
}

.file-card-clean.has-image .file-preview-clean {
    flex: 1;
    position: relative;
    overflow: hidden;
}

.file-card-clean.has-image .file-preview-clean img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.2s ease;
}

.file-card-clean.has-image:hover .file-preview-clean img {
    transform: scale(1.05);
}

.file-card-clean.has-image .file-info-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(transparent, rgba(0, 0, 0, 0.7));
    color: white;
    padding: 16px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.file-card-clean.has-image .file-name-overlay {
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 4px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 200px;
}

.file-card-clean.has-image .file-meta-overlay {
    font-size: 12px;
    opacity: 0.9;
}

.file-card-clean.has-image .file-actions-overlay {
    display: flex;
    gap: 8px;
}

.file-action-overlay {
    background: rgba(255, 255, 255, 0.2);
    border: none;
    color: white;
    width: 32px;
    height: 32px;
    border-radius: 6px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    transition: background-color 0.2s ease;
    backdrop-filter: blur(10px);
}

.file-action-overlay:hover {
    background: rgba(255, 255, 255, 0.3);
}

/* Non-image files - horizontal layout */
.file-card-clean:not(.has-image) {
    display: flex;
    align-items: center;
    padding: 16px;
    height: 80px;
}

.file-card-clean:not(.has-image) .file-icon-clean {
    width: 48px;
    height: 48px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    color: var(--text-white);
    background: var(--primary-color);
    margin-right: 16px;
    flex-shrink: 0;
}

.file-card-clean:not(.has-image) .file-info-clean {
    flex: 1;
    min-width: 0;
}

.file-card-clean:not(.has-image) .file-name-clean {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: 4px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.file-card-clean:not(.has-image) .file-meta-clean {
    font-size: 12px;
    color: var(--text-secondary);
}

.file-card-clean:not(.has-image) .file-actions-clean {
    display: flex;
    gap: 8px;
    margin-left: 16px;
}

.file-action-clean {
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    padding: 8px;
    border-radius: 6px;
    transition: all 0.2s ease;
    font-size: 14px;
}

.file-action-clean:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .files-grid-clean {
        grid-template-columns: 1fr;
        gap: 12px;
        padding: 20px;
    }
    
    .files-header-clean {
        padding: 20px;
        flex-direction: column;
        gap: 16px;
        align-items: stretch;
    }
    
    .files-header-clean h2 {
        text-align: center;
        font-size: 20px;
    }
    
    .upload-btn-clean {
        justify-content: center;
    }
    
    .file-card-clean.has-image {
        height: 180px;
    }
    
    .file-card-clean:not(.has-image) {
        height: 70px;
        padding: 12px;
    }
    
    .file-card-clean:not(.has-image) .file-icon-clean {
        width: 40px;
        height: 40px;
        font-size: 18px;
        margin-right: 12px;
    }
}

@media (max-width: 480px) {
    .files-container-clean {
        margin: 0 12px;
    }
    
    .files-grid-clean {
        padding: 16px;
    }
    
    .files-header-clean {
        padding: 16px;
    }
    
    .file-card-clean.has-image {
        height: 160px;
    }
    
    .file-card-clean.has-image .file-info-overlay {
        padding: 12px;
    }
    
    .file-card-clean.has-image .file-name-overlay {
        font-size: 13px;
        max-width: 150px;
    }
    
    .file-card-clean.has-image .file-meta-overlay {
        font-size: 11px;
    }
}

/* Files Header Actions */
.files-header-actions {
    display: flex;
    gap: 12px;
    align-items: center;
}

.download-all-btn-clean {
    background: var(--success-color);
    border: none;
    color: var(--text-white);
    padding: 12px 20px;
    border-radius: 8px;
    cursor: pointer;
    font-weight: 500;
    font-size: 14px;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: all 0.2s ease;
}

.download-all-btn-clean:hover {
    background: #059669;
    transform: translateY(-1px);
}

.download-all-btn-clean:disabled {
    background: var(--text-muted);
    cursor: not-allowed;
    transform: none;
}

.download-all-btn-clean.loading {
    pointer-events: none;
}

.download-all-btn-clean.loading i {
    animation: spin 1s linear infinite;
}

/* Responsive adjustments for header actions */
@media (max-width: 768px) {
    .files-header-clean {
        flex-direction: column;
        gap: 16px;
        align-items: stretch;
    }
    
    .files-header-actions {
        justify-content: center;
        flex-wrap: wrap;
    }
    
    .upload-btn-clean,
    .download-all-btn-clean {
        flex: 1;
        min-width: 120px;
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .files-header-actions {
        flex-direction: column;
        gap: 12px;
    }
    
    .upload-btn-clean,
    .download-all-btn-clean {
        width: 100%;
    }
}

/* Additional CSS variables for success color */
:root {
    --success-color: #10b981;
    --success-dark: #059669;
}

/* Spin animation for loading states */
@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* News Section Styles */
.news-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 24px;
}

.news-header {
    text-align: center;
    margin-bottom: 32px;
    position: relative;
}

.news-header h2 {
    font-size: 32px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.news-header p {
    font-size: 16px;
    color: var(--text-secondary);
    margin-bottom: 24px;
}

.refresh-news-btn {
    background: var(--primary-color);
    border: none;
    color: var(--text-white);
    padding: 12px 20px;
    border-radius: 8px;
    cursor: pointer;
    font-weight: 500;
    font-size: 14px;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: all 0.2s ease;
}

.refresh-news-btn:hover {
    background: var(--primary-dark);
    transform: translateY(-1px);
}

.refresh-news-btn.loading i {
    animation: spin 1s linear infinite;
}

.news-filters {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin-bottom: 32px;
    flex-wrap: wrap;
}

.filter-btn {
    background: var(--bg-tertiary);
    border: 1px solid var(--border-light);
    color: var(--text-secondary);
    padding: 8px 16px;
    border-radius: 20px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    transition: all 0.2s ease;
}

.filter-btn:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
}

.filter-btn.active {
    background: var(--primary-color);
    color: var(--text-white);
    border-color: var(--primary-color);
}

.news-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 24px;
    margin-bottom: 32px;
}

.news-item {
    background: var(--bg-card);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    cursor: pointer;
    border: 1px solid var(--border-light);
}

.news-item:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 24px -4px rgba(0, 0, 0, 0.15);
}

.news-image {
    width: 100%;
    height: 200px;
    object-fit: cover;
    background: var(--bg-tertiary);
}

.news-content {
    padding: 20px;
}

.news-category {
    display: inline-block;
    background: var(--primary-color);
    color: var(--text-white);
    padding: 4px 12px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 500;
    margin-bottom: 12px;
}

.news-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 8px;
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.news-summary {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.5;
    margin-bottom: 16px;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.news-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 12px;
    color: var(--text-muted);
}

.news-source {
    font-weight: 500;
}

.news-date {
    display: flex;
    align-items: center;
    gap: 4px;
}

.news-loading {
    grid-column: 1 / -1;
    text-align: center;
    padding: 60px 20px;
    color: var(--text-secondary);
}

.news-loading i {
    font-size: 32px;
    margin-bottom: 16px;
    color: var(--primary-color);
}

.news-loading p {
    font-size: 16px;
    margin: 0;
}

.news-pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 20px;
    margin-top: 32px;
}

.pagination-btn {
    background: var(--bg-card);
    border: 1px solid var(--border-light);
    color: var(--text-primary);
    padding: 10px 16px;
    border-radius: 8px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: all 0.2s ease;
}

.pagination-btn:hover:not(:disabled) {
    background: var(--primary-color);
    color: var(--text-white);
    border-color: var(--primary-color);
}

.pagination-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.page-info {
    font-size: 14px;
    color: var(--text-secondary);
    font-weight: 500;
}

/* Responsive */
@media (max-width: 768px) {
    .news-container {
        padding: 16px;
    }
    
    .news-header h2 {
        font-size: 24px;
    }
    
    .news-filters {
        gap: 8px;
    }
    
    .filter-btn {
        padding: 6px 12px;
        font-size: 12px;
    }
    
    .news-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }
    
    .news-image {
        height: 160px;
    }
    
    .news-content {
        padding: 16px;
    }
    
    .news-title {
        font-size: 16px;
    }
    
    .news-pagination {
        flex-direction: column;
        gap: 12px;
    }
    
    .pagination-btn {
        width: 100%;
        justify-content: center;
    }
}

/* Dark theme adjustments */
[data-theme="dark"] .news-item {
    background: var(--bg-secondary);
    border-color: var(--border-color);
}

[data-theme="dark"] .news-image {
    background: var(--bg-tertiary);
}

[data-theme="dark"] .filter-btn {
    background: var(--bg-secondary);
    border-color: var(--border-color);
}

[data-theme="dark"] .pagination-btn {
    background: var(--bg-secondary);
    border-color: var(--border-color);
}

/* Стили для селектора модели ИИ */
.ai-model-selector {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-right: 16px;
}

.ai-model-selector label {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-secondary);
    white-space: nowrap;
}

.model-select {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 6px 12px;
    font-size: 14px;
    color: var(--text-primary);
    min-width: 180px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.model-select:hover {
    border-color: var(--primary-color);
    background: var(--bg-tertiary);
}

.model-select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.model-select option {
    background: var(--bg-secondary);
    color: var(--text-primary);
    padding: 8px;
}

/* Адаптация для мобильных устройств */
@media (max-width: 768px) {
    .ai-model-selector {
        display: none; /* Скрываем на мобильных для экономии места */
    }
    
    /* Добавляем мобильную версию в мобильное меню */
    .mobile-model-selector {
        padding: 12px 16px;
        border-bottom: 1px solid var(--border-color);
        background: var(--bg-secondary);
    }
    
    .mobile-model-selector label {
        display: block;
        font-size: 12px;
        font-weight: 500;
        color: var(--text-secondary);
        margin-bottom: 6px;
    }
    
    .mobile-model-selector .model-select {
        width: 100%;
        min-width: unset;
    }
}

/* New Chat Header Styles */
.chat-header {
    background: var(--bg-card);
    border-bottom: 1px solid var(--border-color);
    padding: 16px 24px;
    position: sticky;
    top: 0;
    z-index: 100;
}

/* Mobile Chat Header */
.mobile-chat-header {
    display: none;
    align-items: center;
    justify-content: space-between;
    width: 100%;
}

.mobile-header-left,
.mobile-header-right {
    display: flex;
    align-items: center;
    gap: 8px;
}

.mobile-header-center {
    flex: 1;
    text-align: center;
}

.mobile-header-center h2 {
    font-size: 18px;
    margin: 0;
    color: var(--text-primary);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
}

.mobile-clear-chat-btn,
.mobile-chat-menu-btn {
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-primary);
    cursor: pointer;
    transition: all 0.3s ease;
}

.mobile-clear-chat-btn:hover,
.mobile-chat-menu-btn:hover {
    background: var(--bg-secondary);
    transform: translateY(-2px);
}

/* Desktop Chat Header */
.desktop-chat-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
}

.header-left {
    display: flex;
    align-items: center;
    gap: 16px;
}

.header-left h2 {
    font-size: 24px;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
}

.mode-indicator {
    background: var(--gradient-primary);
    color: white;
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.header-controls {
    display: flex;
    align-items: center;
    gap: 20px;
    flex-wrap: wrap;
}

.control-group {
    display: flex;
    align-items: center;
    gap: 8px;
}

.control-group label {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-secondary);
    white-space: nowrap;
}

.control-select {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 8px 12px;
    font-size: 14px;
    color: var(--text-primary);
    cursor: pointer;
    transition: all 0.3s ease;
    min-width: 160px;
}

.control-select:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.status-group {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 8px 12px;
    gap: 8px;
}

.status-indicator {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--success-color);
    animation: pulse 2s infinite;
}

.clear-chat-btn {
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 8px 16px;
    color: var(--text-primary);
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
}

.clear-chat-btn:hover {
    background: var(--error-color);
    color: white;
    border-color: var(--error-color);
    transform: translateY(-2px);
}

@media (max-width: 1024px) {
    .chat-header-controls {
        gap: 8px;
    }
    
    .ai-model-selector label {
        font-size: 13px;
    }
    
    .model-select {
        min-width: 160px;
        font-size: 13px;
        padding: 5px 10px;
    }
}

/* Стили для красивого форматирования ответов ИИ как в ChatGPT */

/* Заголовки в ответах ИИ */
.ai-heading {
    color: var(--text-primary);
    margin: 16px 0 8px 0;
    font-weight: 600;
    line-height: 1.3;
}

.ai-heading:first-child {
    margin-top: 0;
}

.message-content h1.ai-heading {
    font-size: 1.5em;
    border-bottom: 2px solid var(--border-color);
    padding-bottom: 8px;
}

.message-content h2.ai-heading {
    font-size: 1.3em;
}

.message-content h3.ai-heading {
    font-size: 1.1em;
}

/* Параграфы */
.ai-paragraph {
    margin: 12px 0;
    line-height: 1.6;
    color: var(--text-primary);
}

.ai-paragraph:first-child {
    margin-top: 0;
}

.ai-paragraph:last-child {
    margin-bottom: 0;
}

/* Списки */
.ai-numbered-list,
.ai-bullet-list {
    margin: 12px 0;
    padding-left: 24px;
}

.numbered-list-item,
.bullet-list-item {
    margin: 6px 0;
    line-height: 1.5;
    color: var(--text-primary);
}

.ai-bullet-list .bullet-list-item {
    list-style-type: disc;
}

.ai-numbered-list .numbered-list-item {
    list-style-type: decimal;
}

/* Инлайн код */
.inline-code {
    background: var(--bg-tertiary);
    color: var(--primary-color);
    padding: 2px 6px;
    border-radius: 4px;
    font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
    font-size: 0.9em;
    border: 1px solid var(--border-color);
}

/* Блоки кода */
.code-block {
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    margin: 16px 0;
    position: relative;
    overflow: hidden;
}

.code-language {
    background: var(--bg-secondary);
    color: var(--text-secondary);
    padding: 8px 16px;
    font-size: 12px;
    font-weight: 500;
    border-bottom: 1px solid var(--border-color);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.code-block pre {
    margin: 0;
    padding: 16px;
    overflow-x: auto;
    background: transparent;
}

.code-block code {
    font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
    font-size: 14px;
    line-height: 1.5;
    color: var(--text-primary);
    background: transparent;
    border: none;
    padding: 0;
}

.copy-code-btn {
    position: absolute;
    top: 8px;
    right: 8px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    padding: 6px 8px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 12px;
    transition: all 0.2s ease;
    opacity: 0.7;
}

.copy-code-btn:hover {
    background: var(--primary-color);
    color: white;
    opacity: 1;
}

/* Ссылки */
.ai-link {
    color: var(--primary-color);
    text-decoration: none;
    border-bottom: 1px solid transparent;
    transition: border-color 0.2s ease;
}

.ai-link:hover {
    border-bottom-color: var(--primary-color);
}

/* Прикрепленные файлы в сообщениях */
.message-file-attachment {
    display: flex;
    align-items: center;
    gap: 12px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 12px;
    margin-bottom: 12px;
    transition: background-color 0.2s ease;
}

.message-file-attachment:hover {
    background: var(--bg-hover);
}

.message-file-attachment .file-icon {
    color: var(--primary-color);
    font-size: 20px;
    width: 24px;
    text-align: center;
}

.file-details {
    flex: 1;
    min-width: 0;
}

.file-name {
    display: block;
    font-weight: 500;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    margin-bottom: 2px;
}

.file-size {
    display: block;
    font-size: 12px;
    color: var(--text-secondary);
}

/* Улучшение общих стилей сообщений */
.message-content {
    line-height: 1.6;
}

.message-content > *:first-child {
    margin-top: 0;
}

.message-content > *:last-child {
    margin-bottom: 0;
}

/* Анимация появления сообщений */
.message {
    animation: messageSlideIn 0.3s ease-out;
}

@keyframes messageSlideIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Улучшение для темной темы */
[data-theme="dark"] .code-block {
    background: var(--bg-secondary);
}

[data-theme="dark"] .inline-code {
    background: var(--bg-secondary);
    color: var(--accent-primary);
}

[data-theme="dark"] .message-file-attachment {
    background: var(--bg-secondary);
}

/* Адаптация для мобильных устройств */
@media (max-width: 768px) {
    .code-block pre {
        padding: 12px;
        font-size: 13px;
    }
    
    .copy-code-btn {
        top: 6px;
        right: 6px;
        padding: 4px 6px;
        font-size: 11px;
    }
    
    .message-file-attachment {
        padding: 10px;
        gap: 10px;
    }
    
    .message-file-attachment .file-icon {
        font-size: 18px;
        width: 20px;
    }
    
    .ai-numbered-list,
    .ai-bullet-list {
        padding-left: 20px;
    }
}


/* Стили для мобильного селектора модели ИИ */
.mobile-model-selector {
    padding: 16px 20px;
    border-bottom: 1px solid var(--border-color);
    background: var(--bg-secondary);
}

.mobile-model-selector label {
    display: block;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.mobile-model-selector .model-select {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    background: var(--bg-primary);
    color: var(--text-primary);
    font-size: 14px;
    font-family: inherit;
    cursor: pointer;
    transition: all 0.2s ease;
}

.mobile-model-selector .model-select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.mobile-model-selector .model-select option {
    background: var(--bg-primary);
    color: var(--text-primary);
    padding: 8px;
}

/* Адаптация для темной темы */
[data-theme="dark"] .mobile-model-selector {
    background: var(--bg-tertiary);
}

[data-theme="dark"] .mobile-model-selector .model-select {
    background: var(--bg-secondary);
    border-color: var(--border-color);
}

[data-theme="dark"] .mobile-model-selector .model-select option {
    background: var(--bg-secondary);
}

/* Скрытие десктопного селектора на мобильных устройствах */
@media (max-width: 768px) {
    .ai-model-selector {
        display: none !important;
    }
}

/* Скрытие мобильного селектора на десктопе */
@media (min-width: 769px) {
    .mobile-model-selector {
        display: none !important;
    }
}

/* Анимация "Думает..." для ИИ */
.thinking-message {
    opacity: 0.8;
}

.thinking-animation {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 0;
}

.thinking-text {
    color: var(--text-secondary);
    font-style: italic;
    font-size: 14px;
}

.thinking-dots {
    display: flex;
    gap: 4px;
    align-items: center;
}

.thinking-dots .dot {
    width: 6px;
    height: 6px;
    background-color: var(--primary-color);
    border-radius: 50%;
    animation: thinkingPulse 1.4s infinite ease-in-out;
}

.thinking-dots .dot:nth-child(1) {
    animation-delay: 0s;
}

.thinking-dots .dot:nth-child(2) {
    animation-delay: 0.2s;
}

.thinking-dots .dot:nth-child(3) {
    animation-delay: 0.4s;
}

@keyframes thinkingPulse {
    0%, 80%, 100% {
        transform: scale(0.8);
        opacity: 0.5;
    }
    40% {
        transform: scale(1.2);
        opacity: 1;
    }
}

/* Альтернативная анимация - волна */
@keyframes thinkingWave {
    0%, 60%, 100% {
        transform: translateY(0);
    }
    30% {
        transform: translateY(-10px);
    }
}

/* Дополнительные стили для плавности */
.thinking-message .message-content {
    animation: fadeInUp 0.3s ease-out;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Адаптация для темной темы */
[data-theme="dark"] .thinking-dots .dot {
    background-color: var(--accent-primary);
}

[data-theme="dark"] .thinking-text {
    color: var(--text-muted);
}

/* Мобильная адаптация */
@media (max-width: 768px) {
    .thinking-animation {
        padding: 10px 0;
    }
    
    .thinking-text {
        font-size: 13px;
    }
    
    .thinking-dots .dot {
        width: 5px;
        height: 5px;
    }
}


/* Стили для селектора режимов работы ИИ */
.ai-mode-selector {
    display: flex;
    flex-direction: column;
    gap: 6px;
    min-width: 200px;
}

.ai-mode-selector label {
    font-size: 12px;
    font-weight: 500;
    color: var(--text-secondary);
    white-space: nowrap;
}

.mode-select {
    padding: 8px 12px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    background: var(--bg-primary);
    color: var(--text-primary);
    font-size: 13px;
    font-family: inherit;
    cursor: pointer;
    transition: all 0.2s ease;
    min-width: 180px;
}

.mode-select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(55, 114, 255, 0.1);
}

.mode-select option {
    background: var(--bg-primary);
    color: var(--text-primary);
    padding: 8px;
}

/* Мобильный селектор режимов */
.mobile-mode-selector {
    padding: 16px 20px;
    border-bottom: 1px solid var(--border-color);
    background: var(--bg-secondary);
}

.mobile-mode-selector label {
    display: block;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.mobile-mode-selector .mode-select {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    background: var(--bg-primary);
    color: var(--text-primary);
    font-size: 14px;
    font-family: inherit;
    cursor: pointer;
    transition: all 0.2s ease;
}

.mobile-mode-selector .mode-select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.mobile-mode-selector .mode-select option {
    background: var(--bg-primary);
    color: var(--text-primary);
    padding: 8px;
}

/* Адаптация для темной темы */
[data-theme="dark"] .mobile-mode-selector {
    background: var(--bg-tertiary);
}

[data-theme="dark"] .mobile-mode-selector .mode-select {
    background: var(--bg-secondary);
    border-color: var(--border-color);
}

[data-theme="dark"] .mobile-mode-selector .mode-select option {
    background: var(--bg-secondary);
}

[data-theme="dark"] .mode-select {
    background: var(--bg-secondary);
    border-color: var(--border-color);
}

[data-theme="dark"] .mode-select option {
    background: var(--bg-secondary);
}

/* Скрытие десктопного селектора режимов на мобильных устройствах */
@media (max-width: 768px) {
    .ai-mode-selector {
        display: none !important;
    }
}

/* Скрытие мобильного селектора режимов на десктопе */
@media (min-width: 769px) {
    .mobile-mode-selector {
        display: none !important;
    }
}

/* Адаптация chat-header-controls для нового селектора */
@media (max-width: 1200px) {
    .chat-header-controls {
        flex-wrap: wrap;
        gap: 8px;
    }
    
    .ai-model-selector,
    .ai-mode-selector {
        min-width: 150px;
    }
    
    .model-select,
    .mode-select {
        min-width: 140px;
        font-size: 12px;
        padding: 6px 8px;
    }
}

@media (max-width: 1024px) {
    .ai-model-selector label,
    .ai-mode-selector label {
        font-size: 11px;
    }
    
    .model-select,
    .mode-select {
        min-width: 120px;
        font-size: 11px;
        padding: 5px 6px;
    }
}

/* Индикатор активного режима */
.mode-indicator {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 4px 8px;
    border-radius: 12px;
    font-size: 11px;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.mode-indicator.standard {
    background: rgba(100, 116, 139, 0.1);
    color: var(--text-secondary);
}

.mode-indicator.research {
    background: rgba(16, 185, 129, 0.1);
    color: var(--success-color);
}

.mode-indicator.web-search {
    background: rgba(245, 158, 11, 0.1);
    color: var(--warning-color);
}

.mode-indicator.developer {
    background: rgba(55, 114, 255, 0.1);
    color: var(--primary-color);
}

.mode-indicator i {
    font-size: 10px;
}

/* Templates Button Styles */
.templates-btn {
    background: var(--gradient-primary);
    border: none;
    border-radius: 12px;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 18px;
    cursor: pointer;
    transition: all 0.3s ease;
    margin-right: 8px;
}

.templates-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-primary);
}

.templates-btn:active {
    transform: translateY(0);
}

/* Templates Modal Styles */
.templates-modal {
    max-width: 900px;
    width: 90vw;
    max-height: 80vh;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.templates-modal .modal-body {
    flex: 1;
    overflow-y: auto;
    padding: 24px;
}

.templates-categories {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
}

.template-category {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 24px;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.template-category:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-card);
    border-color: var(--accent-primary);
}

.template-category:before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.template-category:hover:before {
    transform: scaleX(1);
}

.template-category-icon {
    font-size: 48px;
    color: var(--accent-primary);
    margin-bottom: 16px;
    display: block;
}

.template-category h3 {
    color: var(--text-primary);
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 8px;
}

.template-category p {
    color: var(--text-secondary);
    font-size: 14px;
    line-height: 1.4;
}

.templates-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 16px;
    margin-top: 20px;
}

.template-item {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 20px;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
}

.template-item:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-card);
    border-color: var(--accent-primary);
}

.template-item h4 {
    color: var(--text-primary);
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.template-item p {
    color: var(--text-secondary);
    font-size: 14px;
    line-height: 1.4;
}

.back-to-categories,
.back-to-templates {
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 12px 20px;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    margin-bottom: 20px;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
}

.back-to-categories:hover,
.back-to-templates:hover {
    background: var(--bg-secondary);
    transform: translateX(-2px);
}

.template-form {
    max-width: 500px;
    margin: 0 auto;
}

.template-form h3 {
    color: var(--text-primary);
    font-size: 24px;
    font-weight: 600;
    margin-bottom: 24px;
    text-align: center;
}

.form-group {
    margin-bottom: 24px;
}

.form-group label {
    display: block;
    color: var(--text-primary);
    font-weight: 500;
    margin-bottom: 8px;
}

.form-group textarea {
    width: 100%;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 12px;
    color: var(--text-primary);
    font-size: 14px;
    resize: vertical;
    min-height: 100px;
    transition: border-color 0.3s ease;
}

.form-group textarea:focus {
    outline: none;
    border-color: var(--accent-primary);
}

.form-group textarea::placeholder {
    color: var(--text-secondary);
}

.form-actions {
    display: flex;
    gap: 12px;
    justify-content: center;
}

.btn {
    padding: 12px 24px;
    border-radius: 8px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    border: none;
    font-size: 14px;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.btn-primary {
    background: var(--gradient-primary);
    color: white;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-primary);
}

.btn-secondary {
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    background: var(--bg-secondary);
}

/* Loading state for template generation */
.template-generating {
    opacity: 0.7;
    pointer-events: none;
}

.template-generating .btn-primary {
    background: var(--bg-tertiary);
    color: var(--text-secondary);
}

/* Mobile responsive for templates */
@media (max-width: 768px) {
    .templates-modal {
        width: 95vw;
        max-height: 90vh;
    }
    
    .templates-categories {
        grid-template-columns: 1fr;
    }
    
    .templates-grid {
        grid-template-columns: 1fr;
    }
    
    .template-category {
        padding: 20px;
    }
    
    .template-category-icon {
        font-size: 36px;
    }
    
    .form-actions {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .templates-btn {
        width: 40px;
        height: 40px;
        font-size: 16px;
    }
    
    .templates-modal .modal-body {
        padding: 16px;
    }
    
    .template-category {
        padding: 16px;
    }
    
    .template-item {
        padding: 16px;
    }
}

/* New Chat Input Styles */
.chat-input-container {
    background: var(--bg-card);
    border-top: 1px solid var(--border-color);
    padding: 16px 24px;
    position: sticky;
    bottom: 0;
    z-index: 100;
}

.file-preview {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 12px 16px;
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.file-preview-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
}

.file-info {
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--text-primary);
}

.file-info i {
    color: var(--accent-primary);
    font-size: 18px;
}

.file-size {
    color: var(--text-secondary);
    font-size: 12px;
    margin-left: 8px;
}

.remove-file {
    background: var(--error-color);
    border: none;
    border-radius: 8px;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    cursor: pointer;
    transition: all 0.3s ease;
}

.remove-file:hover {
    background: var(--error-dark);
    transform: scale(1.1);
}

.chat-input-wrapper {
    display: flex;
    align-items: flex-end;
    gap: 12px;
    background: var(--bg-secondary);
    border: 2px solid var(--border-color);
    border-radius: 20px;
    padding: 12px 16px;
    transition: all 0.3s ease;
}

.chat-input-wrapper:focus-within {
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.input-actions-left,
.input-actions-right {
    display: flex;
    align-items: center;
    gap: 8px;
}

.action-btn {
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-primary);
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 16px;
}

.action-btn:hover {
    background: var(--bg-primary);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.templates-btn {
    background: var(--gradient-primary);
    color: white;
    border-color: transparent;
}

.templates-btn:hover {
    background: var(--gradient-primary);
    transform: translateY(-2px) scale(1.05);
    box-shadow: 0 8px 20px rgba(102, 126, 234, 0.3);
}

.send-btn {
    background: var(--accent-primary);
    color: white;
    border-color: var(--accent-primary);
}

.send-btn:hover {
    background: var(--accent-dark);
    border-color: var(--accent-dark);
    transform: translateY(-2px) scale(1.05);
}

.send-btn:disabled {
    background: var(--bg-tertiary);
    color: var(--text-secondary);
    border-color: var(--border-color);
    cursor: not-allowed;
    transform: none;
}

.input-field-container {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

#messageInput {
    background: transparent;
    border: none;
    outline: none;
    color: var(--text-primary);
    font-size: 16px;
    font-family: inherit;
    resize: none;
    min-height: 20px;
    max-height: 120px;
    line-height: 1.4;
    padding: 0;
}

#messageInput::placeholder {
    color: var(--text-secondary);
}

.input-hint {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 12px;
    color: var(--text-secondary);
}

.current-model {
    background: var(--accent-primary);
    color: white;
    padding: 2px 8px;
    border-radius: 12px;
    font-weight: 500;
}

.current-mode {
    background: var(--bg-tertiary);
    color: var(--text-primary);
    padding: 2px 8px;
    border-radius: 12px;
    font-weight: 500;
}

.separator {
    color: var(--border-color);
}

/* Mobile Responsive */
@media (max-width: 768px) {
    .desktop-chat-header {
        display: none;
    }
    
    .mobile-chat-header {
        display: flex;
    }
    
    .chat-header {
        padding: 12px 16px;
    }
    
    .chat-input-container {
        padding: 12px 16px;
    }
    
    .chat-input-wrapper {
        padding: 8px 12px;
    }
    
    .action-btn {
        width: 40px;
        height: 40px;
        font-size: 14px;
    }
    
    .input-hint {
        font-size: 11px;
    }
    
    .header-controls {
        gap: 12px;
    }
    
    .control-select {
        min-width: 120px;
        font-size: 13px;
    }
}

@media (max-width: 480px) {
    .chat-input-wrapper {
        gap: 8px;
        padding: 6px 10px;
    }
    
    .action-btn {
        width: 36px;
        height: 36px;
        font-size: 13px;
    }
    
    .input-hint {
        display: none;
    }
    
    .mobile-header-center h2 {
        font-size: 16px;
    }
    
    .mode-indicator {
        font-size: 10px;
        padding: 4px 8px;
    }
}


/* Payment Navigation Item Styles */
.payment-nav-item {
    background: linear-gradient(135deg, #10b981 0%, #059669 100%) !important;
    color: white !important;
    margin: 8px 0;
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(16, 185, 129, 0.3);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.payment-nav-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: left 0.5s;
}

.payment-nav-item:hover::before {
    left: 100%;
}

.payment-nav-item:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(16, 185, 129, 0.4);
    color: white !important;
}

.payment-nav-item i {
    color: white !important;
    font-size: 18px;
}

.payment-nav-item span {
    font-weight: 600;
    font-size: 14px;
}

/* Mobile payment button */
@media (max-width: 768px) {
    .mobile-drawer-nav .payment-nav-item {
        background: linear-gradient(135deg, #10b981 0%, #059669 100%);
        border-radius: 12px;
        margin: 8px 16px;
    }
    
    .mobile-drawer-nav .payment-nav-item .mobile-nav-icon {
        background: rgba(255, 255, 255, 0.2);
    }
    
    .mobile-drawer-nav .payment-nav-item .mobile-nav-title {
        color: white;
        font-weight: 600;
    }
    
    .mobile-drawer-nav .payment-nav-item .mobile-nav-arrow {
        color: white;
    }
}

/* Balance display enhancements */
.balance-info {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 12px;
    background: var(--bg-tertiary);
    border-radius: 8px;
    border: 1px solid var(--border-light);
}

.balance-info i {
    color: var(--primary-color);
    font-size: 14px;
}

.balance-info strong {
    color: var(--primary-color);
    font-weight: 600;
}

/* Payment success animation */
@keyframes paymentSuccess {
    0% { transform: scale(1); }
    50% { transform: scale(1.1); }
    100% { transform: scale(1); }
}

.payment-success {
    animation: paymentSuccess 0.6s ease-in-out;
}

/* ============================================================================
 * Help Modal Styles
 * ============================================================================ */

.help-modal {
    z-index: 10000;
}

.help-modal-content {
    max-width: 1200px;
    width: 95vw;
    max-height: 90vh;
    margin: 2.5vh auto;
    display: flex;
    flex-direction: column;
}

.help-modal-header {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: var(--text-white);
    padding: 24px 32px;
    border-radius: 16px 16px 0 0;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.help-modal-header h2 {
    margin: 0;
    font-size: 24px;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 12px;
}

.help-modal-body {
    flex: 1;
    overflow: hidden;
    display: flex;
    background: var(--bg-card);
}

.help-nav {
    width: 250px;
    background: var(--bg-secondary);
    border-right: 1px solid var(--border-light);
    padding: 20px 0;
    overflow-y: auto;
}

.help-nav-btn {
    display: flex;
    align-items: center;
    gap: 12px;
    width: 100%;
    padding: 16px 24px;
    background: none;
    border: none;
    text-align: left;
    color: var(--text-secondary);
    font-size: 15px;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition-fast);
    border-left: 3px solid transparent;
}

.help-nav-btn:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
}

.help-nav-btn.active {
    background: var(--bg-card);
    color: var(--primary-color);
    border-left-color: var(--primary-color);
    box-shadow: 0 2px 8px rgba(55, 114, 255, 0.1);
}

.help-nav-btn i {
    font-size: 18px;
    width: 20px;
    text-align: center;
}

.help-content {
    flex: 1;
    overflow-y: auto;
    padding: 32px;
}

.help-section {
    display: none;
    animation: fadeInUp 0.3s ease;
}

.help-section.active {
    display: block;
}

.help-section h3 {
    margin: 0 0 24px 0;
    font-size: 28px;
    font-weight: 700;
    color: var(--text-primary);
    border-bottom: 2px solid var(--primary-color);
    padding-bottom: 12px;
}

.help-hero {
    text-align: center;
    margin-bottom: 40px;
    padding: 32px;
    background: linear-gradient(135deg, var(--bg-secondary), var(--bg-tertiary));
    border-radius: 16px;
    border: 1px solid var(--border-light);
}

.help-hero h3 {
    margin: 0 0 16px 0;
    font-size: 32px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    border: none;
    padding: 0;
}

.help-hero p {
    font-size: 18px;
    color: var(--text-secondary);
    margin: 0;
    line-height: 1.6;
}

.help-features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
    margin-bottom: 40px;
}

.help-feature-card {
    background: var(--bg-card);
    border: 1px solid var(--border-light);
    border-radius: 12px;
    padding: 24px;
    text-align: center;
    transition: var(--transition-fast);
    box-shadow: var(--shadow-sm);
}

.help-feature-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
}

.feature-icon {
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 16px;
}

.feature-icon i {
    font-size: 28px;
    color: var(--text-white);
}

.help-feature-card h4 {
    margin: 0 0 12px 0;
    font-size: 20px;
    font-weight: 600;
    color: var(--text-primary);
}

.help-feature-card p {
    margin: 0;
    color: var(--text-secondary);
    line-height: 1.5;
}

.help-quick-start {
    background: var(--bg-tertiary);
    border-radius: 12px;
    padding: 24px;
    border-left: 4px solid var(--success-color);
}

.help-quick-start h4 {
    margin: 0 0 16px 0;
    color: var(--text-primary);
    font-size: 20px;
    font-weight: 600;
}

.help-quick-start ol {
    margin: 0;
    padding-left: 20px;
}

.help-quick-start li {
    margin-bottom: 8px;
    color: var(--text-secondary);
    line-height: 1.5;
}

.help-subsection {
    margin-bottom: 32px;
}

.help-subsection h4 {
    margin: 0 0 16px 0;
    font-size: 20px;
    font-weight: 600;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 8px;
}

.help-subsection h4 i {
    color: var(--primary-color);
}

.model-comparison {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
    margin-top: 20px;
}

.model-card {
    background: var(--bg-card);
    border: 1px solid var(--border-light);
    border-radius: 12px;
    padding: 20px;
    position: relative;
    transition: var(--transition-fast);
}

.model-card:hover {
    border-color: var(--primary-color);
    box-shadow: var(--shadow-md);
}

.model-card h5 {
    margin: 0 0 8px 0;
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
}

.model-badge {
    position: absolute;
    top: 16px;
    right: 16px;
    padding: 4px 8px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
}

.model-badge.recommended {
    background: var(--success-color);
    color: white;
}

.model-badge.fast {
    background: var(--warning-color);
    color: white;
}

.model-badge.creative {
    background: var(--primary-color);
    color: white;
}

.model-card p {
    margin: 0 0 12px 0;
    color: var(--text-secondary);
    line-height: 1.5;
}

.model-card ul {
    margin: 0;
    padding-left: 20px;
}

.model-card li {
    margin-bottom: 4px;
    color: var(--text-secondary);
    font-size: 14px;
}

.modes-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.mode-item {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    padding: 16px;
    background: var(--bg-secondary);
    border-radius: 8px;
    border-left: 3px solid var(--primary-color);
}

.mode-item i {
    color: var(--primary-color);
    font-size: 20px;
    margin-top: 2px;
}

.mode-item h5 {
    margin: 0 0 4px 0;
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
}

.mode-item p {
    margin: 0;
    color: var(--text-secondary);
    font-size: 14px;
    line-height: 1.4;
}

.help-tip {
    background: var(--bg-tertiary);
    border: 1px solid var(--border-light);
    border-radius: 8px;
    padding: 16px;
    margin-top: 16px;
    display: flex;
    align-items: flex-start;
    gap: 12px;
}

.help-tip i {
    color: var(--warning-color);
    font-size: 18px;
    margin-top: 2px;
}

.help-tip p {
    margin: 0;
    color: var(--text-primary);
    font-size: 14px;
    line-height: 1.5;
}

.step-by-step {
    display: flex;
    flex-direction: column;
    gap: 20px;
    margin-top: 20px;
}

.step {
    display: flex;
    align-items: flex-start;
    gap: 16px;
}

.step-number {
    width: 32px;
    height: 32px;
    background: var(--primary-color);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 14px;
    flex-shrink: 0;
}

.step-content h5 {
    margin: 0 0 4px 0;
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
}

.step-content p {
    margin: 0;
    color: var(--text-secondary);
    font-size: 14px;
    line-height: 1.4;
}

.styles-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
    margin-top: 20px;
}

.style-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-light);
    border-radius: 8px;
    padding: 16px;
    text-align: center;
    transition: var(--transition-fast);
}

.style-card:hover {
    background: var(--bg-hover);
    border-color: var(--primary-color);
}

.style-card h5 {
    margin: 0 0 8px 0;
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
}

.style-card p {
    margin: 0;
    color: var(--text-secondary);
    font-size: 13px;
    line-height: 1.4;
}

.help-examples {
    margin-top: 20px;
}

.help-examples h5 {
    margin: 0 0 12px 0;
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
}

.example-prompt {
    background: var(--bg-tertiary);
    border-left: 3px solid var(--primary-color);
    padding: 12px 16px;
    margin-bottom: 12px;
    border-radius: 0 8px 8px 0;
    display: flex;
    align-items: flex-start;
    gap: 12px;
}

.example-prompt i {
    color: var(--primary-color);
    font-size: 16px;
    margin-top: 2px;
}

.example-prompt p {
    margin: 0;
    color: var(--text-primary);
    font-style: italic;
    line-height: 1.5;
}

.video-features,
.voice-features {
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin-top: 20px;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 16px;
    background: var(--bg-secondary);
    border-radius: 8px;
}

.feature-item i {
    color: var(--primary-color);
    font-size: 20px;
    width: 24px;
    text-align: center;
}

.feature-item h5 {
    margin: 0 0 4px 0;
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
}

.feature-item p {
    margin: 0;
    color: var(--text-secondary);
    font-size: 14px;
}

.video-types,
.voice-options {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
    margin-top: 20px;
}

.type-card,
.voice-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-light);
    border-radius: 8px;
    padding: 16px;
    text-align: center;
    transition: var(--transition-fast);
}

.type-card:hover,
.voice-card:hover {
    background: var(--bg-hover);
    border-color: var(--primary-color);
}

.type-card h5,
.voice-card h5 {
    margin: 0 0 8px 0;
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
}

.type-card p,
.voice-card p {
    margin: 0;
    color: var(--text-secondary);
    font-size: 13px;
    line-height: 1.4;
}

.cost-info {
    margin-top: 20px;
}

.cost-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-light);
    border-radius: 8px;
    padding: 20px;
    text-align: center;
    max-width: 300px;
}

.cost-card i {
    color: var(--primary-color);
    font-size: 24px;
    margin-bottom: 12px;
}

.cost-card h5 {
    margin: 0 0 8px 0;
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
}

.cost {
    display: block;
    font-size: 20px;
    font-weight: 700;
    color: var(--primary-color);
    margin: 8px 0;
}

.cost-card small {
    color: var(--text-secondary);
    font-size: 12px;
}

.file-types {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-top: 20px;
}

.file-type {
    background: var(--bg-secondary);
    border: 1px solid var(--border-light);
    border-radius: 8px;
    padding: 20px;
    text-align: center;
    transition: var(--transition-fast);
}

.file-type:hover {
    background: var(--bg-hover);
    border-color: var(--primary-color);
}

.file-type i {
    color: var(--primary-color);
    font-size: 32px;
    margin-bottom: 12px;
}

.file-type h5 {
    margin: 0 0 8px 0;
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
}

.file-type p {
    margin: 0;
    color: var(--text-secondary);
    font-size: 14px;
    line-height: 1.4;
}

.security-info {
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin-top: 20px;
}

.security-item {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    padding: 16px;
    background: var(--bg-tertiary);
    border-radius: 8px;
    border-left: 3px solid var(--success-color);
}

.security-item i {
    color: var(--success-color);
    font-size: 20px;
    margin-top: 2px;
}

.security-item h5 {
    margin: 0 0 4px 0;
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
}

.security-item p {
    margin: 0;
    color: var(--text-secondary);
    font-size: 14px;
    line-height: 1.4;
}

.pricing-table {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-top: 20px;
}

.price-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px;
    background: var(--bg-secondary);
    border-radius: 8px;
    border-left: 3px solid var(--primary-color);
}

.price-item i {
    color: var(--primary-color);
    font-size: 18px;
    margin-right: 12px;
}

.price-item h5 {
    margin: 0;
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
}

.price {
    font-size: 16px;
    font-weight: 700;
    color: var(--primary-color);
}

.payment-methods {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
    margin-top: 20px;
}

.payment-method {
    background: var(--bg-secondary);
    border: 1px solid var(--border-light);
    border-radius: 8px;
    padding: 16px;
    text-align: center;
    transition: var(--transition-fast);
}

.payment-method:hover {
    background: var(--bg-hover);
    border-color: var(--primary-color);
}

.payment-method i {
    color: var(--primary-color);
    font-size: 24px;
    margin-bottom: 8px;
}

.payment-method h5 {
    margin: 0 0 4px 0;
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
}

.payment-method p {
    margin: 0;
    color: var(--text-secondary);
    font-size: 13px;
}

.help-modal-footer {
    background: var(--bg-secondary);
    padding: 20px 32px;
    border-radius: 0 0 16px 16px;
    border-top: 1px solid var(--border-light);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.help-footer-links {
    display: flex;
    gap: 16px;
}

.help-link {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: var(--bg-tertiary);
    color: var(--text-secondary);
    text-decoration: none;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 500;
    transition: var(--transition-fast);
}

.help-link:hover {
    background: var(--primary-color);
    color: var(--text-white);
}

/* Help Button Styles */
.help-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-light);
    border-radius: 50px;
    padding: 10px 16px;
    cursor: pointer;
    transition: all 0.3s ease;
    color: var(--text-secondary);
    font-size: 14px;
    font-weight: 500;
    text-decoration: none;
}

.help-btn:hover {
    background: var(--primary-color);
    color: var(--text-white);
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow);
    border-color: var(--primary-color);
}

.help-btn i {
    font-size: 16px;
    transition: transform 0.3s ease;
}

.help-btn:hover i {
    transform: scale(1.1);
}

/* Mobile Responsive */
@media (max-width: 768px) {
    .help-modal-content {
        width: 100vw;
        height: 100vh;
        margin: 0;
        border-radius: 0;
        max-height: 100vh;
    }
    
    .help-modal-header {
        padding: 16px 20px;
        border-radius: 0;
    }
    
    .help-modal-header h2 {
        font-size: 20px;
    }
    
    .help-modal-body {
        flex-direction: column;
    }
    
    .help-nav {
        width: 100%;
        display: flex;
        overflow-x: auto;
        padding: 12px 0;
        border-right: none;
        border-bottom: 1px solid var(--border-light);
    }
    
    .help-nav-btn {
        flex-shrink: 0;
        padding: 12px 16px;
        border-left: none;
        border-bottom: 3px solid transparent;
        white-space: nowrap;
    }
    
    .help-nav-btn.active {
        border-left: none;
        border-bottom-color: var(--primary-color);
    }
    
    .help-content {
        padding: 20px;
    }
    
    .help-section h3 {
        font-size: 24px;
    }
    
    .help-hero {
        padding: 20px;
    }
    
    .help-hero h3 {
        font-size: 24px;
    }
    
    .help-hero p {
        font-size: 16px;
    }
    
    .help-features-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }
    
    .model-comparison {
        grid-template-columns: 1fr;
    }
    
    .styles-grid,
    .video-types,
    .voice-options,
    .payment-methods {
        grid-template-columns: 1fr;
    }
    
    .file-types {
        grid-template-columns: 1fr;
    }
    
    .help-modal-footer {
        padding: 16px 20px;
        flex-direction: column;
        gap: 16px;
    }
    
    .help-footer-links {
        order: 2;
    }
    
    .help-btn span {
        display: none;
    }
}

/* Dark Theme Support */
[data-theme="dark"] .help-modal-content {
    background: var(--bg-card);
}

[data-theme="dark"] .help-nav {
    background: var(--bg-tertiary);
}

[data-theme="dark"] .help-feature-card,
[data-theme="dark"] .model-card,
[data-theme="dark"] .style-card,
[data-theme="dark"] .type-card,
[data-theme="dark"] .voice-card,
[data-theme="dark"] .file-type,
[data-theme="dark"] .payment-method,
[data-theme="dark"] .cost-card {
    background: var(--bg-tertiary);
    border-color: var(--border-medium);
}

[data-theme="dark"] .mode-item,
[data-theme="dark"] .feature-item,
[data-theme="dark"] .price-item {
    background: var(--bg-tertiary);
}

[data-theme="dark"] .help-tip,
[data-theme="dark"] .example-prompt,
[data-theme="dark"] .security-item {
    background: var(--bg-tertiary);
}

[data-theme="dark"] .help-quick-start {
    background: var(--bg-tertiary);
}

/* Animation */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Mobile Help Header Button */
.mobile-help-header-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 18px;
    font-weight: 600;
    cursor: pointer;
    padding: 8px 12px;
    border-radius: 8px;
    transition: var(--transition-fast);
}

.mobile-help-header-btn:hover {
    background: var(--bg-hover);
    color: var(--primary-color);
}

.mobile-help-header-btn i {
    font-size: 20px;
    color: var(--primary-color);
}

/* Mobile responsive improvements for help modal */
@media (max-width: 768px) {
    .help-modal-footer {
        padding: 12px 16px;
        flex-direction: column;
        gap: 12px;
    }
    
    .help-footer-links {
        order: 2;
        gap: 12px;
    }
    
    .help-link {
        padding: 6px 12px;
        font-size: 13px;
    }
    
    .help-modal-footer .btn {
        padding: 10px 20px;
        font-size: 14px;
    }
    
    .help-nav-btn {
        padding: 8px 12px;
        font-size: 12px;
        gap: 6px;
        min-width: auto;
        flex-shrink: 1;
    }
    
    .help-nav-btn i {
        font-size: 14px;
        width: 16px;
    }
    
    .help-nav-btn span {
        font-size: 11px;
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
    }
    
    .help-nav {
        padding: 8px 0;
        gap: 4px;
    }
}