/* CSS Variables for Theme Support */
:root {
    /* Colors */
    --primary-color: #2563eb;
    --primary-hover: #1d4ed8;
    --secondary-color: #64748b;
    --accent-color: #0ea5e9;
    
    /* Dark Theme */
    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --bg-tertiary: #334155;
    --text-primary: #f8fafc;
    --text-secondary: #cbd5e1;
    --text-muted: #94a3b8;
    --border-color: #334155;
    
    /* Gradients - Dark Theme */
    --bg-gradient: linear-gradient(135deg, #0f172a 0%, #1e293b 50%, #334155 100%);
    --bg-hero-gradient: linear-gradient(135deg, #1e40af 0%, #3730a3 50%, #581c87 100%);
    --bg-section-gradient: linear-gradient(135deg, #1e293b 0%, #334155 50%, #475569 100%);
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;
    
    /* Typography */
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;
    --font-size-5xl: 3rem;
    
    /* 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);
    
    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
}

/* Light Theme */
[data-theme="light"] {
    --bg-primary: #ffffff;
    --bg-secondary: #f8fafc;
    --bg-tertiary: #e2e8f0;
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-muted: #64748b;
    --border-color: #e2e8f0;
    
    /* Gradients - Light Theme */
    --bg-gradient: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 50%, #cbd5e1 100%);
    --bg-hero-gradient: linear-gradient(135deg, #dbeafe 0%, #bfdbfe 50%, #93c5fd 100%);
    --bg-section-gradient: linear-gradient(135deg, #f1f5f9 0%, #e2e8f0 50%, #cbd5e1 100%);
}

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

html {
    scroll-behavior: smooth;
}

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

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

/* Header */
.header {
    background-color: var(--bg-primary);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(10px);
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-md) 0;
    position: relative;
}

.logo {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--primary-color);
    text-decoration: none;
}

.nav {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.2s ease;
}

.nav-link:hover {
    color: var(--text-primary);
}

.theme-toggle {
    background: none;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: var(--spacing-sm);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

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

.theme-icon {
    transition: transform 0.3s ease;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--radius-md);
    font-weight: 600;
    text-decoration: none;
    transition: all 0.2s ease;
    border: none;
    cursor: pointer;
    font-size: var(--font-size-base);
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    color: white;
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--primary-hover), #0284c7);
    transform: translateY(-1px);
    box-shadow: var(--shadow-lg);
}

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

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

.btn-large {
    padding: var(--spacing-lg) var(--spacing-2xl);
    font-size: var(--font-size-lg);
}

/* Hero Section */
.hero {
    padding: var(--spacing-3xl) 0;
    background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
    align-items: center;
}

.hero-text h1 {
    font-size: var(--font-size-5xl);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: var(--spacing-lg);
    background: linear-gradient(135deg, var(--text-primary), var(--primary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-text p {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-2xl);
    line-height: 1.7;
}

.cta-buttons {
    display: flex;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-2xl);
}

.stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-xl);
    margin-top: var(--spacing-2xl);
}

.stat {
    text-align: center;
}

.stat-number {
    display: block;
    font-size: var(--font-size-3xl);
    font-weight: 800;
    color: var(--primary-color);
    margin-bottom: var(--spacing-xs);
}

.stat-label {
    font-size: var(--font-size-sm);
    color: var(--text-muted);
    line-height: 1.4;
}

.hero-capabilities {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-lg);
}

.capability-card {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    transition: all 0.3s ease;
}

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

.capability-icon {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-lg);
    color: white;
}

.capability-card h3 {
    font-size: var(--font-size-lg);
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
}

.capability-card p {
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
    line-height: 1.5;
}

/* Service Sections */
.service-section {
    padding: var(--spacing-3xl) 0;
    background-color: var(--bg-primary);
}

.service-section:nth-child(even) {
    background-color: var(--bg-secondary);
}

.service-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
    align-items: center;
}

/* Reverse layout for alternating sections */
.service-section.reverse .service-content {
    grid-template-columns: 1fr 1fr;
}

.service-section.reverse .service-text {
    order: 2;
}

.service-section.reverse .demo-window {
    order: 1;
}

.service-text h2 {
    font-size: var(--font-size-4xl);
    font-weight: 800;
    margin-bottom: var(--spacing-lg);
    color: var(--text-primary);
}

.service-text p {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-2xl);
    line-height: 1.7;
}

.features-list {
    display: grid;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-2xl);
}

.feature {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-lg);
}

.feature-icon {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    color: white;
}

.feature-text h4 {
    font-size: var(--font-size-lg);
    font-weight: 700;
    margin-bottom: var(--spacing-xs);
    color: var(--text-primary);
}

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

.pricing {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
}

.price {
    color: var(--text-muted);
    font-size: var(--font-size-sm);
}

/* Demo Window */
.demo-window {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
}

.demo-header {
    background-color: var(--bg-tertiary);
    padding: var(--spacing-md);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    border-bottom: 1px solid var(--border-color);
}

.demo-dots {
    display: flex;
    gap: var(--spacing-xs);
}

.demo-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background-color: var(--text-muted);
}

.demo-title {
    font-weight: 600;
    color: var(--text-primary);
    font-size: var(--font-size-sm);
}

.demo-body {
    padding: var(--spacing-xl);
}

/* Chat Demo */
.chat-demo {
    max-height: 200px;
    overflow-y: auto;
    margin-bottom: var(--spacing-lg);
}

.chat-message {
    margin-bottom: var(--spacing-lg);
}

.chat-message.user .message-content {
    background-color: var(--primary-color);
    color: white;
    margin-left: auto;
    max-width: 80%;
}

.chat-message.ai .message-content {
    background-color: var(--bg-tertiary);
    color: var(--text-primary);
    max-width: 80%;
}

.message-content {
    padding: var(--spacing-md);
    border-radius: var(--radius-lg);
    font-size: var(--font-size-sm);
    line-height: 1.5;
}

.chat-input-container {
    display: flex;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
}

.chat-input, .prompt-input {
    flex: 1;
    padding: var(--spacing-md);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    font-size: var(--font-size-sm);
}

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

.send-btn {
    padding: var(--spacing-md);
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    color: white;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all 0.2s ease;
}

.send-btn:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.example-chips {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.chip {
    padding: var(--spacing-xs) var(--spacing-md);
    background-color: var(--bg-tertiary);
    color: var(--text-secondary);
    border-radius: var(--radius-md);
    font-size: var(--font-size-xs);
    cursor: pointer;
    transition: all 0.2s ease;
}

.chip:hover {
    background-color: var(--primary-color);
    color: white;
}

/* Image Grid */
.image-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
    margin: var(--spacing-lg) 0;
}

.image-placeholder {
    aspect-ratio: 1;
    background-color: var(--bg-tertiary);
    border: 2px dashed var(--border-color);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
    transition: all 0.2s ease;
}

.image-placeholder:hover {
    border-color: var(--primary-color);
    background-color: rgba(37, 99, 235, 0.05);
}

/* Video Preview */
.video-preview {
    background-color: var(--bg-tertiary);
    border-radius: var(--radius-md);
    padding: var(--spacing-xl);
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.play-button {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-lg);
    color: white;
    cursor: pointer;
    transition: all 0.3s ease;
}

.play-button:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-lg);
}

.video-info p {
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
    margin-bottom: var(--spacing-sm);
}

/* Audio Visualizer */
.audio-visualizer {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-lg);
    padding: var(--spacing-xl);
    background-color: var(--bg-tertiary);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-lg);
}

.sound-waves {
    display: flex;
    gap: var(--spacing-xs);
    align-items: center;
}

.wave {
    width: 4px;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    border-radius: 2px;
    animation: wave 1.5s ease-in-out infinite;
}

.wave:nth-child(1) { height: 20px; animation-delay: 0s; }
.wave:nth-child(2) { height: 30px; animation-delay: 0.1s; }
.wave:nth-child(3) { height: 25px; animation-delay: 0.2s; }
.wave:nth-child(4) { height: 35px; animation-delay: 0.3s; }
.wave:nth-child(5) { height: 20px; animation-delay: 0.4s; }

@keyframes wave {
    0%, 100% { transform: scaleY(1); }
    50% { transform: scaleY(0.5); }
}

.transcript {
    background-color: var(--bg-tertiary);
    padding: var(--spacing-lg);
    border-radius: var(--radius-md);
    font-style: italic;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
    line-height: 1.6;
}

.key-points {
    list-style: none;
    padding: 0;
}

.key-points li {
    padding: var(--spacing-sm) 0;
    color: var(--text-secondary);
    position: relative;
    padding-left: var(--spacing-lg);
}

.key-points li::before {
    content: "•";
    color: var(--primary-color);
    position: absolute;
    left: 0;
    font-weight: bold;
}

/* Upload Areas */
.upload-area {
    border: 2px dashed var(--border-color);
    border-radius: var(--radius-md);
    padding: var(--spacing-2xl);
    text-align: center;
    background-color: var(--bg-primary);
    transition: all 0.2s ease;
    cursor: pointer;
    margin-top: var(--spacing-lg);
}

.upload-area:hover {
    border-color: var(--primary-color);
    background-color: rgba(37, 99, 235, 0.05);
}

.upload-area svg {
    color: var(--text-muted);
    margin-bottom: var(--spacing-md);
}

.upload-area p {
    color: var(--text-muted);
    font-size: var(--font-size-sm);
    margin: 0;
}

/* CTA Section */
.cta {
    padding: var(--spacing-3xl) 0;
    background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-primary) 100%);
    text-align: center;
}

.cta h2 {
    font-size: var(--font-size-4xl);
    font-weight: 800;
    margin-bottom: var(--spacing-lg);
    color: var(--text-primary);
}

.cta p {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-2xl);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.cta-features {
    display: flex;
    justify-content: center;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-2xl);
}

.cta-feature {
    color: var(--text-muted);
    font-size: var(--font-size-sm);
    position: relative;
}

.cta-feature:not(:last-child)::after {
    content: "•";
    position: absolute;
    right: calc(-1 * var(--spacing-xl) / 2);
    color: var(--border-color);
}

.cta-note {
    margin-top: var(--spacing-lg) !important;
    font-size: var(--font-size-sm) !important;
    color: var(--text-muted) !important;
}

/* Responsive Design */
@media (max-width: 768px) {
    .container {
        padding: 0 var(--spacing-md);
    }
    
    .header-content {
        flex-direction: column;
        gap: var(--spacing-md);
    }
    
    .nav {
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .hero-content,
    .service-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-2xl);
    }
    
    .hero-capabilities {
        grid-template-columns: 1fr;
    }
    
    .stats {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
    
    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .cta-features {
        flex-direction: column;
        gap: var(--spacing-md);
    }
    
    .cta-feature:not(:last-child)::after {
        display: none;
    }
    
    .hero-text h1 {
        font-size: var(--font-size-4xl);
    }
    
    .service-text h2 {
        font-size: var(--font-size-3xl);
    }
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-in {
    animation: fadeInUp 0.6s ease-out forwards;
}

/* Smooth transitions for theme switching */
* {
    transition: background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease;
}


/* Footer Styles */
.footer {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    padding: 60px 0 30px;
    margin-top: 80px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-section h4 {
    color: var(--text-primary);
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 20px;
}

.footer-section p {
    color: var(--text-secondary);
    font-size: 14px;
    line-height: 1.6;
    margin-bottom: 8px;
}

.footer-section a {
    color: var(--primary-color);
    text-decoration: none;
    transition: color 0.2s ease;
}

.footer-section a:hover {
    color: var(--primary-hover);
}

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

.footer-links li {
    margin-bottom: 12px;
}

.footer-links a {
    color: var(--text-secondary);
    font-size: 14px;
    text-decoration: none;
    transition: color 0.2s ease;
}

.footer-links a:hover {
    color: var(--primary-color);
}

.footer-bottom {
    border-top: 1px solid var(--border-color);
    padding-top: 30px;
    text-align: center;
}

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

/* Responsive Footer */
@media (max-width: 768px) {
    .footer {
        padding: 40px 0 20px;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .footer-section {
        text-align: center;
    }
}

/* Video Container Styles */
.video-container {
    width: 100%;
    height: 200px;
    background: var(--bg-primary);
    border-radius: 8px;
    overflow: hidden;
    margin-bottom: 15px;
    position: relative;
}

.video-container video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 8px;
}

.video-container .video-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-primary) 100%);
    color: var(--text-secondary);
}

/* Image Grid Updates */
.image-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
    margin-bottom: 15px;
}

.image-grid img {
    width: 100%;
    height: 120px;
    object-fit: cover;
    border-radius: 6px;
    border: 1px solid var(--border-color);
}

.image-grid .image-placeholder {
    width: 100%;
    height: 120px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
}


/* Additional styles for new sections */

/* Demo form styles */
.demo-form {
    margin-bottom: 15px;
}

.demo-form input,
.demo-form textarea,
.demo-form select {
    width: 100%;
    margin-bottom: 8px;
}

.demo-form button {
    width: 100%;
}

/* Demo result styles */
.demo-result {
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    margin-top: var(--spacing-md);
}

/* Summary block styles */
.summary-block {
    background-color: var(--bg-secondary);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    margin-top: var(--spacing-md);
}

/* FAQ preview styles */
.faq-preview {
    font-size: var(--font-size-sm);
}

.faq-item {
    padding: var(--spacing-sm) 0;
    border-bottom: 1px solid var(--border-color);
}

.faq-item:last-child {
    border-bottom: none;
}

/* Proposal preview styles */
.proposal-preview {
    font-size: var(--font-size-sm);
    line-height: 1.4;
}

/* Script cards styles */
.script-cards {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.script-card {
    background-color: var(--bg-secondary);
    border-radius: var(--radius-sm);
    padding: var(--spacing-sm);
    font-size: var(--font-size-sm);
}

/* Email preview styles */
.email-preview {
    font-size: var(--font-size-sm);
    line-height: 1.4;
}

/* Post preview styles */
.post-preview {
    font-size: var(--font-size-sm);
}

/* Promo preview styles */
.promo-preview {
    text-align: center;
}

/* Week plan preview styles */
.week-plan-preview {
    font-size: var(--font-size-sm);
}

.plan-item {
    padding: var(--spacing-xs) 0;
}

/* Brief preview styles */
.brief-preview {
    font-size: var(--font-size-sm);
    line-height: 1.4;
}

/* Product descriptions styles */
.product-descriptions {
    font-size: var(--font-size-sm);
}

/* Deck preview styles */
.deck-preview {
    font-size: var(--font-size-sm);
}

.slide-list {
    background-color: var(--bg-secondary);
    border-radius: var(--radius-sm);
    padding: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
}

.slide-list div {
    margin-bottom: var(--spacing-xs);
}

.slide-list div:last-child {
    margin-bottom: 0;
}

/* Notes preview styles */
.notes-preview {
    font-size: var(--font-size-sm);
}

/* Script preview styles */
.script-preview {
    font-size: var(--font-size-sm);
}

/* Checklist preview styles */
.checklist-preview {
    font-size: var(--font-size-sm);
}

/* Resume preview styles */
.resume-preview {
    font-size: var(--font-size-sm);
}

/* Digest preview styles */
.digest-preview {
    font-size: var(--font-size-sm);
}

/* Copy button styles */
.btn-copy {
    background-color: var(--bg-secondary);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    font-size: var(--font-size-xs);
    cursor: pointer;
    transition: all 0.2s ease;
}

.btn-copy:hover {
    background-color: var(--bg-tertiary);
}

/* Upload area improvements */
.upload-area {
    transition: all 0.3s ease;
    cursor: pointer;
}

.upload-area:hover {
    border-color: var(--primary-color);
    background-color: rgba(37, 99, 235, 0.05);
}

.upload-area svg {
    margin-bottom: var(--spacing-sm);
}

/* Play button improvements */
.play-button {
    cursor: pointer;
    transition: all 0.3s ease;
}

.play-button:hover {
    transform: scale(1.1);
}

/* Priority colors for digest */
.priority-high {
    color: #ef4444;
}

.priority-medium {
    color: #f59e0b;
}

.priority-low {
    color: #10b981;
}

/* Responsive improvements for new sections */
@media (max-width: 768px) {
    .demo-form {
        padding: var(--spacing-sm);
    }
    
    .demo-result {
        padding: var(--spacing-sm);
    }
    
    .script-cards {
        gap: var(--spacing-xs);
    }
    
    .slide-list {
        padding: var(--spacing-xs);
    }
}

/* Animation for demo results */
.demo-result {
    animation: fadeInUp 0.3s ease-out;
}

/* Hover effects for interactive elements */
.demo-form button:hover {
    transform: translateY(-1px);
}

.upload-area:active {
    transform: scale(0.98);
}

/* Focus states for accessibility */
.demo-form input:focus,
.demo-form textarea:focus,
.demo-form select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

/* Loading states */
.demo-loading {
    opacity: 0.6;
    pointer-events: none;
}

.demo-loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 20px;
    height: 20px;
    margin: -10px 0 0 -10px;
    border: 2px solid var(--primary-color);
    border-radius: 50%;
    border-top-color: transparent;
    animation: spin 1s linear infinite;
}

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

/* Mobile Navigation Styles */
.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--text-primary);
    cursor: pointer;
    padding: var(--spacing-sm);
    border-radius: var(--border-radius);
    transition: all 0.2s ease;
    position: absolute;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
}

.mobile-menu-toggle:hover {
    background-color: var(--bg-secondary);
}

.mobile-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 998;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.mobile-overlay.open {
    opacity: 1;
    visibility: visible;
}

.mobile-nav-drawer {
    position: fixed;
    top: 0;
    right: -320px;
    width: 320px;
    height: 100%;
    background-color: var(--bg-primary);
    border-left: 1px solid var(--border-color);
    z-index: 999;
    transition: right 0.3s ease;
    overflow-y: auto;
    box-shadow: -4px 0 20px rgba(0, 0, 0, 0.1);
}

.mobile-nav-drawer.open {
    right: 0;
}

.mobile-nav-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--border-color);
}

.mobile-nav-close {
    background: none;
    border: none;
    color: var(--text-primary);
    cursor: pointer;
    padding: var(--spacing-sm);
    border-radius: var(--border-radius);
    transition: all 0.2s ease;
}

.mobile-nav-close:hover {
    background-color: var(--bg-secondary);
}

.mobile-nav-links {
    padding: var(--spacing-lg);
}

.mobile-nav-links .nav-link {
    display: block;
    padding: var(--spacing-md) 0;
    color: var(--text-primary);
    text-decoration: none;
    border-bottom: 1px solid var(--border-color);
    transition: color 0.2s ease;
}

.mobile-nav-links .nav-link:hover {
    color: var(--primary-color);
}

.mobile-nav-links .theme-toggle {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    width: 100%;
    padding: var(--spacing-md) 0;
    background: none;
    border: none;
    color: var(--text-primary);
    cursor: pointer;
    border-bottom: 1px solid var(--border-color);
    transition: color 0.2s ease;
}

.mobile-nav-links .theme-toggle:hover {
    color: var(--primary-color);
}

.mobile-nav-links .btn {
    margin-top: var(--spacing-lg);
    width: 100%;
    justify-content: center;
}


/* Mobile Navigation Drawer */
.mobile-menu-toggle {
    display: none;
    background: none;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: var(--spacing-sm);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.2s ease;
}

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

.mobile-nav-drawer {
    position: fixed;
    top: 0;
    right: -100%;
    width: 280px;
    height: 100vh;
    background-color: var(--bg-primary);
    border-left: 1px solid var(--border-color);
    z-index: 1000;
    transition: right 0.3s ease;
    padding: var(--spacing-xl);
    box-shadow: -10px 0 30px rgba(0, 0, 0, 0.1);
}

.mobile-nav-drawer.open {
    right: 0;
}

.mobile-nav-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-2xl);
    padding-bottom: var(--spacing-lg);
    border-bottom: 1px solid var(--border-color);
}

.mobile-nav-close {
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    padding: var(--spacing-sm);
    border-radius: var(--radius-md);
    transition: all 0.2s ease;
}

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

.mobile-nav-links {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.mobile-nav-links .nav-link {
    padding: var(--spacing-md) 0;
    font-size: var(--font-size-lg);
    border-bottom: 1px solid var(--border-color);
}

.mobile-nav-links .btn {
    margin-top: var(--spacing-lg);
    justify-self: stretch;
}

.mobile-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 999;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.mobile-overlay.open {
    opacity: 1;
    visibility: visible;
}

/* Responsive styles for alternating layout */
/* Mobile Styles */
@media screen and (max-width: 768px) {
    /* Header mobile styles */
    .nav {
        display: none !important;
    }
    
    .mobile-menu-toggle {
        display: flex !important;
        align-items: center;
        justify-content: center;
    }
    
    /* Hero section mobile */
    .hero-content {
        grid-template-columns: 1fr !important;
        gap: var(--spacing-xl) !important;
        text-align: center;
    }
    
    .hero-capabilities {
        grid-template-columns: 1fr !important;
    }
    
    /* Service sections mobile styles */
    .service-content {
        grid-template-columns: 1fr !important;
        gap: var(--spacing-xl) !important;
    }
    
    /* Reset order on mobile for better readability */
    .service-section.reverse .service-text {
        order: 1 !important;
    }
    
    .service-section.reverse .demo-window {
        order: 2 !important;
    }
    
    /* Demo window improvements for mobile */
    .demo-window {
        max-width: 100% !important;
        overflow: hidden;
    }
    
    .demo-body {
        padding: var(--spacing-lg);
        font-size: var(--font-size-sm);
    }
    
    .demo-form textarea,
    .demo-form select,
    .demo-form input {
        font-size: var(--font-size-sm);
        padding: var(--spacing-sm);
    }
    
    .transcript,
    .faq-preview,
    .proposal-preview,
    .script-cards,
    .email-preview,
    .post-preview,
    .promo-preview,
    .calendar-preview {
        font-size: var(--font-size-xs);
        padding: var(--spacing-sm);
    }
    
    .demo-form .btn {
        padding: var(--spacing-sm) var(--spacing-md);
        font-size: var(--font-size-sm);
    }
    
    /* Typography adjustments for mobile */
    .service-text h2 {
        font-size: var(--font-size-2xl) !important;
        margin-bottom: var(--spacing-md);
    }
    
    .service-text p {
        font-size: var(--font-size-base) !important;
        margin-bottom: var(--spacing-lg);
    }
    
    .service-features {
        grid-template-columns: 1fr !important;
        gap: var(--spacing-md);
    }
    
    .service-cta {
        margin-top: var(--spacing-lg);
    }
    
    .service-cta .btn {
        width: 100%;
        margin-bottom: var(--spacing-sm);
    }
}


@media (max-width: 480px) {
    .hero-text h1 {
        font-size: var(--font-size-3xl);
    }
    
    .service-text h2 {
        font-size: var(--font-size-2xl);
    }
    
    .container {
        padding: 0 var(--spacing-md);
    }
    
    .mobile-nav-drawer {
        width: 100%;
        right: -100%;
    }
    
    .demo-body {
        padding: var(--spacing-md);
    }
    
    .pricing {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-sm);
    }
}


/* Capability Examples Styles */
.capability-example {
    margin-top: 16px;
    border-radius: 8px;
    overflow: hidden;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.example-image {
    width: 100%;
    height: 240px; /* было 120px */
    object-fit: cover;
    border-radius: 6px 6px 0 0;
    transition: transform 0.3s ease;
}

.capability-card:hover .example-image {
    transform: scale(1.05);
}

.example-video {
    width: 100%;
    height: 120px;
    object-fit: cover;
    border-radius: 6px 6px 0 0;
}

.example-label {
    display: block;
    padding: 8px 12px;
    font-size: 12px;
    color: var(--text-secondary);
    background: rgba(0, 0, 0, 0.3);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.chat-preview {
    padding: 12px;
    max-height: 120px;
    overflow: hidden;
    position: relative;
}

.chat-message {
    margin-bottom: 8px;
    padding: 6px 10px;
    border-radius: 12px;
    font-size: 11px;
    line-height: 1.4;
    max-width: 85%;
}

.chat-message.user {
    background: var(--primary-color);
    color: white;
    margin-left: auto;
    text-align: right;
}

.chat-message.ai {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-primary);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.document-preview {
    display: flex;
    align-items: center;
    padding: 12px;
    gap: 10px;
}

.doc-icon {
    font-size: 24px;
    opacity: 0.8;
}

.doc-info {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.doc-name {
    font-size: 12px;
    color: var(--text-primary);
    font-weight: 500;
}

.doc-analysis {
    font-size: 10px;
    color: #10b981;
    font-weight: 500;
}

/* Light theme adjustments */
[data-theme="light"] .capability-example {
    background: rgba(0, 0, 0, 0.02);
    border: 1px solid rgba(0, 0, 0, 0.1);
}

[data-theme="light"] .example-label {
    background: rgba(0, 0, 0, 0.05);
    color: var(--secondary-color);
    border-top: 1px solid rgba(0, 0, 0, 0.1);
}

[data-theme="light"] .chat-message.ai {
    background: rgba(0, 0, 0, 0.05);
    color: var(--text-primary);
    border: 1px solid rgba(0, 0, 0, 0.1);
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .capability-example {
        margin-top: 12px;
    }
    
    .example-image,
    .example-video {
        height: 100px;
    }
    
    .chat-preview {
        padding: 10px;
        max-height: 100px;
    }
    
    .chat-message {
        font-size: 10px;
        padding: 4px 8px;
    }
}


/* Navigation Section Styles */
.navigation-section {
    padding: 100px 0;
    background: var(--bg-secondary);
}

.navigation-section h2 {
    text-align: center;
    font-size: 40px;
    font-weight: 700;
    margin-bottom: 16px;
    color: var(--text-primary);
}

.navigation-section p {
    text-align: center;
    font-size: 18px;
    color: var(--text-secondary);
    margin-bottom: 60px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.nav-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    max-width: 1200px;
    margin: 0 auto;
}

.nav-card {
    background: var(--bg-primary);
    padding: 40px;
    border-radius: 16px;
    border: 1px solid var(--border-color);
    text-align: center;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

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

.nav-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

.nav-card:hover::before {
    transform: scaleX(1);
}

.nav-icon {
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 24px;
    transition: all 0.3s ease;
}

.nav-card:hover .nav-icon {
    transform: scale(1.1);
}

.nav-icon svg {
    color: white;
}

.nav-card h3 {
    font-size: 24px;
    font-weight: 600;
    margin-bottom: 16px;
    color: var(--text-primary);
}

.nav-card p {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 24px;
    text-align: center;
}

.nav-link-btn {
    display: inline-block;
    background: var(--primary-color);
    color: white;
    padding: 12px 24px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    border: 2px solid var(--primary-color);
}

.nav-link-btn:hover {
    background: transparent;
    color: var(--primary-color);
    transform: translateY(-2px);
}

@media (max-width: 768px) {
    .navigation-section {
        padding: 60px 0;
    }
    
    .navigation-section h2 {
        font-size: 28px;
    }
    
    .nav-cards {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .nav-card {
        padding: 30px 20px;
    }
    
    .nav-icon {
        width: 56px;
        height: 56px;
    }
    
    .nav-card h3 {
        font-size: 20px;
    }
}

.example-image,
.example-video {
    width: 100% !important;
    height: auto !important;
    max-height: 300px;
    object-fit: cover;
}

/* Увеличиваем общий размер блоков с фото и видео в первом блоке */
.hero-capabilities .capability-card {
    transform: scale(1.1); /* увеличиваем весь блок на 10% */
    margin: 20px; /* добавляем отступы чтобы блоки не накладывались */
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.hero-capabilities .capability-card:hover {
    transform: scale(1.15); /* при наведении увеличиваем еще больше */
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

.hero-capabilities .capability-example {
    height: 300px; /* оптимальная высота для увеличенного блока */
    border-radius: 12px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    overflow: hidden;
}

.hero-capabilities .capability-example:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.3);
}

.hero-capabilities .example-image,
.hero-capabilities .example-video {
    width: 100% !important;
    height: 100% !important;
    object-fit: cover !important;
    display: block;
    border-radius: 12px;
    transition: transform 0.3s ease;
}

.hero-capabilities .capability-card:hover .example-image,
.hero-capabilities .capability-card:hover .example-video {
    transform: scale(1.05);
}

/* Адаптация для мобильных устройств */
@media (max-width: 768px) {
    .hero-capabilities .capability-card {
        transform: scale(1.05); /* меньшее увеличение на мобильных */
        margin: 15px;
    }
    
    .hero-capabilities .capability-card:hover {
        transform: scale(1.08);
    }
    
    .hero-capabilities .capability-example {
        height: 200px; /* меньшая высота на мобильных */
    }
}

@media (max-width: 480px) {
    .hero-capabilities .capability-card {
        transform: scale(1.02); /* минимальное увеличение на очень маленьких экранах */
        margin: 10px;
    }
    
    .hero-capabilities .capability-card:hover {
        transform: scale(1.05);
    }
    
    .hero-capabilities .capability-example {
        height: 150px;
    }
}


/* Выделение вкладки "Лента" */
.nav-link.featured-nav {
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    color: white !important;
    border-radius: 8px;
    padding: 8px 16px;
    font-weight: 600;
    position: relative;
    overflow: hidden;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(37, 99, 235, 0.3);
}

.nav-link.featured-nav:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(37, 99, 235, 0.4);
    background: linear-gradient(135deg, var(--primary-hover), var(--primary-color));
}

.nav-link.featured-nav::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 ease;
}

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

/* Адаптация для темной темы */
[data-theme="light"] .nav-link.featured-nav {
    box-shadow: 0 4px 15px rgba(37, 99, 235, 0.2);
}

[data-theme="light"] .nav-link.featured-nav:hover {
    box-shadow: 0 6px 20px rgba(37, 99, 235, 0.3);
}



/* Custom styles for increasing media size */
.hero-capabilities .capability-example {
    height: 250px; /* Increased height for photo and video */
}




/* New Hero Section Styles */
.hero-title {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
}

.hero-title h1 {
    font-size: var(--font-size-5xl);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 0;
    background: linear-gradient(135deg, var(--text-primary), var(--primary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-description {
    text-align: center;
    margin-top: var(--spacing-2xl);
    margin-bottom: var(--spacing-2xl);
}

.hero-description p {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-2xl);
    line-height: 1.7;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

/* AI Chat Container */
.ai-chat-container {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    height: 600px;
    display: flex;
    flex-direction: column;
    box-shadow: var(--shadow-lg);
    transition: all 0.3s ease;
}

.ai-chat-container:hover {
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-color);
}

.chat-header {
    margin-bottom: var(--spacing-lg);
}

.chat-title {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: var(--font-size-lg);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.chat-title svg {
    color: var(--primary-color);
}

.chat-subtitle {
    font-size: var(--font-size-sm);
    color: var(--text-muted);
}

.chat-messages {
    flex: 1;
    overflow-y: auto;
    padding: var(--spacing-md);
    background-color: var(--bg-primary);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-lg);
}

.message {
    display: flex;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
}

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

.message-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    color: white;
}

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

.message-content {
    background-color: var(--bg-secondary);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    line-height: 1.5;
    color: var(--text-primary);
    max-width: 80%;
}

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

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

.chat-input-container {
    margin-top: auto;
}

.chat-input-wrapper {
    display: flex;
    gap: var(--spacing-sm);
    align-items: stretch;
    width: 100%;
}

.chat-input {
    flex: 1;
    padding: var(--spacing-md);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    font-size: var(--font-size-sm);
    transition: all 0.3s ease;
    min-width: 0; /* Позволяет input сжиматься */
}

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

.send-button {
    width: 48px;
    height: auto;
    min-height: 48px;
    border: none;
    border-radius: var(--radius-md);
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s ease;
    flex-shrink: 0;
}

.send-button:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

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

.research-indicator {
    margin-top: var(--spacing-md);
    padding: var(--spacing-md);
    background-color: var(--bg-primary);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
}

.indicator-content {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.spinner {
    width: 16px;
    height: 16px;
    border: 2px solid var(--border-color);
    border-top: 2px solid var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

.indicator-text {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

/* Video Demo Container */
.video-demo-container {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: 0;
    height: 600px;
    display: flex;
    flex-direction: column;
    box-shadow: var(--shadow-lg);
    transition: all 0.3s ease;
    overflow: hidden;
}

.video-demo-container:hover {
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-color);
}

.video-header {
    margin-bottom: var(--spacing-lg);
}

.video-title {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: var(--font-size-lg);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.video-title svg {
    color: var(--primary-color);
}

.video-subtitle {
    font-size: var(--font-size-sm);
    color: var(--text-muted);
}

.video-wrapper {
    position: relative;
    width: 100%;
    height: 100%;
    border-radius: var(--radius-xl);
    overflow: hidden;
    background-color: var(--bg-primary);
}

.demo-video {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.video-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.3);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.video-wrapper:hover .video-overlay {
    opacity: 1;
}

.play-button {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.9);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s ease;
    color: var(--primary-color);
}

.play-button:hover {
    transform: scale(1.1);
    background: white;
}

.video-features {
    margin-top: var(--spacing-lg);
    display: grid;
    gap: var(--spacing-sm);
}

.feature-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

.feature-item svg {
    color: var(--primary-color);
    flex-shrink: 0;
}

/* Sources List */
.sources-list {
    margin-top: var(--spacing-md);
    padding: var(--spacing-md);
    background-color: var(--bg-tertiary);
    border-radius: var(--radius-md);
}

.sources-title {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
}

.source-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-xs);
    margin-bottom: var(--spacing-xs);
    border-radius: var(--radius-sm);
    transition: background-color 0.2s ease;
}

.source-item:hover {
    background-color: var(--bg-secondary);
}

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

.source-link {
    font-size: var(--font-size-xs);
    color: var(--primary-color);
    text-decoration: none;
    flex: 1;
}

.source-link:hover {
    text-decoration: underline;
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
    }
    
    .ai-chat-container,
    .video-demo-container {
        height: 450px;
    }
    
    .hero-title h1 {
        font-size: var(--font-size-3xl);
        line-height: 1.2;
    }
    
    .hero-description p {
        font-size: var(--font-size-md);
    }
    
    .cta-buttons {
        flex-direction: column;
        align-items: center;
        gap: var(--spacing-md);
    }
    
    .stats {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
        text-align: center;
    }
}

@media (max-width: 480px) {
    .hero-title h1 {
        font-size: var(--font-size-2xl);
        line-height: 1.3;
    }
    
    .hero-description p {
        font-size: var(--font-size-sm);
        padding: 0 var(--spacing-md);
    }
}

/* Enhanced Video Component Styles */
.video-wrapper {
    position: relative;
    flex: 1;
    border-radius: var(--radius-md);
    overflow: hidden;
    background-color: var(--bg-primary);
    box-shadow: inset 0 0 0 1px var(--border-color);
}

.demo-video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.video-wrapper:hover .demo-video {
    transform: scale(1.02);
}

.video-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(0, 0, 0, 0.1) 0%, rgba(0, 0, 0, 0.4) 100%);
    display: flex;
    align-items: flex-end;
    justify-content: flex-end;
    opacity: 0;
    transition: opacity 0.3s ease;
    backdrop-filter: blur(2px);
    padding: var(--spacing-md);
}

.video-wrapper:hover .video-overlay {
    opacity: 1;
}

.fullscreen-button {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-md);
    background: rgba(255, 255, 255, 0.9);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s ease;
    color: var(--primary-color);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}

.fullscreen-button:hover {
    transform: scale(1.1);
    background: white;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
}

.play-button {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.95);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s ease;
    color: var(--primary-color);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
}

.play-button:hover {
    transform: scale(1.1);
    background: white;
    box-shadow: 0 6px 25px rgba(0, 0, 0, 0.3);
}

.play-button svg {
    margin-left: 2px; /* Slight offset for visual centering */
}

/* Video Controls */
.video-controls {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(transparent, rgba(0, 0, 0, 0.7));
    padding: var(--spacing-lg) var(--spacing-md) var(--spacing-md);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.video-wrapper:hover .video-controls {
    opacity: 1;
}

.video-progress {
    width: 100%;
    height: 4px;
    background: rgba(255, 255, 255, 0.3);
    border-radius: 2px;
    margin-bottom: var(--spacing-sm);
    overflow: hidden;
}

.video-progress-bar {
    height: 100%;
    background: var(--primary-color);
    width: 0%;
    transition: width 0.1s ease;
}

.video-time {
    color: white;
    font-size: var(--font-size-xs);
    text-align: center;
}

/* Video Features Enhancement */
.video-features {
    margin-top: var(--spacing-lg);
    display: grid;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
    background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-tertiary) 100%);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
}

.feature-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    padding: var(--spacing-xs);
    border-radius: var(--radius-sm);
    transition: all 0.2s ease;
}

.feature-item:hover {
    background-color: var(--bg-secondary);
    color: var(--text-primary);
    transform: translateX(4px);
}

.feature-item svg {
    color: var(--primary-color);
    flex-shrink: 0;
    transition: transform 0.2s ease;
}

.feature-item:hover svg {
    transform: scale(1.1);
}

/* Video Loading State */
.video-loading {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-md);
    color: var(--text-muted);
}

.video-loading .spinner {
    width: 32px;
    height: 32px;
    border: 3px solid var(--border-color);
    border-top: 3px solid var(--primary-color);
}

/* Video Quality Indicator */
.video-quality {
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
    background: rgba(0, 0, 0, 0.7);
    color: white;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    font-size: var(--font-size-xs);
    font-weight: 600;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.video-wrapper:hover .video-quality {
    opacity: 1;
}

/* Fullscreen Video Styles */
.video-fullscreen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: black;
    z-index: 10000;
    display: flex;
    align-items: center;
    justify-content: center;
}

.video-fullscreen .demo-video {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
}

.fullscreen-close {
    position: absolute;
    top: var(--spacing-lg);
    right: var(--spacing-lg);
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border: none;
    border-radius: 50%;
    color: white;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background-color 0.3s ease;
}

.fullscreen-close:hover {
    background: rgba(255, 255, 255, 0.2);
}

/* Mobile Video Optimizations */
@media (max-width: 768px) {
    .video-wrapper {
        height: 250px;
    }
    
    .play-button {
        width: 50px;
        height: 50px;
    }
    
    .video-features {
        padding: var(--spacing-sm);
        gap: var(--spacing-xs);
    }
    
    .feature-item {
        font-size: var(--font-size-xs);
        padding: var(--spacing-xs);
    }
}