/**
 * TalkiText - Styles principaux
 * Inspiré du design moderne de PhotoAI
 */

:root {
    --primary: #6366f1;
    --primary-dark: #4f46e5;
    --secondary: #8b5cf6;
    --gradient: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
    --text-primary: #1f2937;
    --text-secondary: #6b7280;
    --bg-white: #ffffff;
    --bg-gray: #f9fafb;
    --border-color: #e5e7eb;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    --radius: 0.5rem;
    --radius-lg: 1rem;
    --transition: all 0.2s ease;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    color: var(--text-primary);
    line-height: 1.6;
    background: var(--bg-white);
    font-size: 16px;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* Header */
.site-header {
    background: var(--bg-white);
    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: 1rem 0;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    text-decoration: none;
    font-weight: 700;
    font-size: 1.25rem;
    color: var(--text-primary);
}

.logo-icon {
    width: 40px;
    height: 40px;
}

.main-nav {
    display: flex;
    gap: 2rem;
    align-items: center;
}

.main-nav a {
    text-decoration: none;
    color: var(--text-secondary);
    font-weight: 500;
    transition: var(--transition);
}

.main-nav a:hover {
    color: var(--primary);
}

.header-actions {
    display: flex;
    gap: 1rem;
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
}

.mobile-menu-toggle span {
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    transition: var(--transition);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.625rem 1.25rem;
    border-radius: var(--radius);
    font-weight: 600;
    text-decoration: none;
    transition: var(--transition);
    cursor: pointer;
    border: none;
    font-size: 0.875rem;
}

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

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

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

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

.btn-lg {
    padding: 0.875rem 1.75rem;
    font-size: 1rem;
}

.btn-xl {
    padding: 1rem 2rem;
    font-size: 1.125rem;
}

.btn .icon {
    width: 20px;
    height: 20px;
}

/* Hero Section */
.hero {
    padding: 5rem 0;
    background: linear-gradient(180deg, var(--bg-white) 0%, var(--bg-gray) 100%);
}

.hero-content {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 1.5rem;
}

.gradient-text {
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 2.5rem;
    line-height: 1.7;
}

.hero-cta {
    display: flex;
    gap: 1rem;
    justify-content: center;
    margin-bottom: 3rem;
}

.hero-stats {
    display: flex;
    gap: 3rem;
    justify-content: center;
    padding-top: 2rem;
    border-top: 1px solid var(--border-color);
}

.stat {
    text-align: center;
}

.stat-number {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary);
}

.stat-label {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-top: 0.25rem;
}

/* Sections */
.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 3rem;
}

/* Features */
.features {
    padding: 5rem 0;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.feature-card {
    background: white;
    padding: 2rem;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    transition: var(--transition);
    text-decoration: none;
    color: inherit;
}

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

.feature-icon {
    margin-bottom: 1.5rem;
}

.feature-icon svg {
    width: 56px;
    height: 56px;
}

.feature-card h3 {
    font-size: 1.25rem;
    margin-bottom: 0.75rem;
}

.feature-card p {
    color: var(--text-secondary);
    font-size: 0.9375rem;
}

/* Popular Pages */
.popular-pages {
    padding: 5rem 0;
    background: var(--bg-gray);
}

.pages-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.5rem;
}

.page-card {
    background: white;
    padding: 1.5rem;
    border-radius: var(--radius);
    border: 1px solid var(--border-color);
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.page-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.page-visual svg {
    width: 100%;
    height: 80px;
}

.page-card h3 {
    font-size: 1.125rem;
    margin: 0;
}

.page-card p {
    color: var(--text-secondary);
    font-size: 0.875rem;
    margin: 0;
}

/* Transcription Page */
.transcription-page {
    padding: 3rem 0;
}

.page-header {
    text-align: center;
    max-width: 800px;
    margin: 0 auto 3rem;
}

.page-header h1 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.lead {
    font-size: 1.125rem;
    color: var(--text-secondary);
}

.transcription-showcase {
    max-width: 900px;
    margin: 0 auto;
}

.example-card {
    background: white;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    overflow: hidden;
    margin-bottom: 3rem;
    box-shadow: var(--shadow);
}

.example-visual {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    padding: 3rem;
    display: flex;
    align-items: center;
    justify-content: center;
}

.audio-player audio {
    width: 100%;
    max-width: 500px;
}

.audio-visualizer {
    display: flex;
    gap: 4px;
    justify-content: center;
    margin-top: 1rem;
}

.audio-visualizer span {
    width: 4px;
    height: 30px;
    background: rgba(255, 255, 255, 0.6);
    border-radius: 2px;
    animation: wave 1.2s ease-in-out infinite;
}

.audio-visualizer span:nth-child(2) { animation-delay: 0.1s; }
.audio-visualizer span:nth-child(3) { animation-delay: 0.2s; }
.audio-visualizer span:nth-child(4) { animation-delay: 0.3s; }
.audio-visualizer span:nth-child(5) { animation-delay: 0.4s; }

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

.audio-placeholder svg {
    max-width: 400px;
}

.example-transcript {
    padding: 2rem;
}

.example-transcript h3 {
    margin-bottom: 1rem;
    font-size: 1.125rem;
}

.transcript-content {
    background: var(--bg-gray);
    padding: 1.5rem;
    border-radius: var(--radius);
    line-height: 1.8;
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

.example-meta {
    display: flex;
    gap: 1.5rem;
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.meta-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.meta-item .icon {
    width: 16px;
    height: 16px;
}

/* CTA Section */
.cta-section {
    text-align: center;
    padding: 3rem;
    background: var(--bg-gray);
    border-radius: var(--radius-lg);
    margin-bottom: 3rem;
}

.cta-section h2 {
    font-size: 2rem;
    margin-bottom: 1rem;
}

.cta-section p {
    color: var(--text-secondary);
    font-size: 1.125rem;
    margin-bottom: 2rem;
}

.cta-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.cta-subtext {
    margin-top: 1rem;
    font-size: 0.875rem;
    color: var(--text-secondary);
}

/* Related Pages */
.related-pages {
    margin-top: 4rem;
}

.related-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 1.5rem;
}

.related-card {
    background: white;
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 1.5rem;
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}

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

.related-visual {
    margin-bottom: 1rem;
}

.related-visual svg {
    width: 100%;
    height: 60px;
}

.related-card h3 {
    font-size: 1rem;
    margin-bottom: 0.5rem;
}

.related-card p {
    color: var(--text-secondary);
    font-size: 0.875rem;
    line-height: 1.5;
}

/* CTA Final */
.cta-final {
    background: var(--gradient);
    color: white;
    text-align: center;
    padding: 5rem 2rem;
    margin: 5rem 0;
    border-radius: var(--radius-lg);
}

.cta-final h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.cta-final p {
    font-size: 1.25rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

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

.cta-note {
    margin-top: 1rem;
    font-size: 0.875rem;
    opacity: 0.8;
}

/* Footer */
.site-footer {
    background: var(--text-primary);
    color: white;
    padding: 4rem 0 2rem;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-column h3, .footer-column h4 {
    margin-bottom: 1rem;
}

.footer-column p {
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.6;
}

.footer-rating {
    margin-top: 1rem;
}

.stars {
    color: #fbbf24;
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
}

.footer-column ul {
    list-style: none;
}

.footer-column ul li {
    margin-bottom: 0.75rem;
}

.footer-column a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: var(--transition);
}

.footer-column a:hover {
    color: white;
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.5);
}

.footer-links {
    display: flex;
    gap: 2rem;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.5);
    text-decoration: none;
}

/* Breadcrumbs */
.breadcrumbs {
    margin-bottom: 2rem;
}

.breadcrumbs ol {
    display: flex;
    flex-wrap: wrap;
    list-style: none;
    gap: 0.5rem;
}

.breadcrumbs li:not(:last-child)::after {
    content: '›';
    margin-left: 0.5rem;
    color: var(--text-secondary);
}

.breadcrumbs a {
    color: var(--text-secondary);
    text-decoration: none;
}

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

/* Error Page */
.error-page {
    padding: 5rem 0;
    text-align: center;
}

.error-code {
    font-size: 8rem;
    font-weight: 800;
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
}

.error-content h2 {
    font-size: 2rem;
    margin: 1rem 0;
}

.error-content p {
    color: var(--text-secondary);
    font-size: 1.125rem;
    margin-bottom: 2rem;
}

.error-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
}

/* Responsive */
@media (max-width: 768px) {
    .hero-title {
        font-size: 2.5rem;
    }

    .hero-subtitle {
        font-size: 1.125rem;
    }

    .hero-cta {
        flex-direction: column;
    }

    .hero-stats {
        gap: 1.5rem;
    }

    .main-nav {
        display: none;
    }

    .mobile-menu-toggle {
        display: flex;
    }

    .section-title {
        font-size: 2rem;
    }

    .features-grid {
        grid-template-columns: 1fr;
    }

    .cta-buttons {
        flex-direction: column;
    }

    .footer-bottom {
        flex-direction: column;
        gap: 1rem;
    }

    .page-header h1 {
        font-size: 2rem;
    }
}

/* Language Selector */
.language-selector {
    position: relative;
}

.language-toggle {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.625rem 1rem;
    background: white;
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    cursor: pointer;
    transition: var(--transition);
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-primary);
}

.language-toggle:hover {
    border-color: var(--primary);
}

.current-flag {
    font-size: 1.25rem;
    line-height: 1;
}

.current-lang {
    font-weight: 600;
}

.language-toggle svg {
    transition: transform 0.2s;
}

.language-selector.active .language-toggle svg {
    transform: rotate(180deg);
}

.language-dropdown {
    position: absolute;
    top: calc(100% + 0.5rem);
    right: 0;
    background: white;
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
    min-width: 200px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.2s ease;
    z-index: 1000;
}

.language-selector.active .language-dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.language-option {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    text-decoration: none;
    color: var(--text-primary);
    transition: var(--transition);
    border-bottom: 1px solid var(--border-color);
}

.language-option:last-child {
    border-bottom: none;
}

.language-option:hover {
    background: var(--bg-gray);
}

.language-option.active {
    background: var(--bg-gray);
    color: var(--primary);
    font-weight: 600;
}

.language-option .flag {
    font-size: 1.5rem;
    line-height: 1;
}

.language-option .name {
    flex: 1;
}

@media (max-width: 768px) {
    .language-toggle {
        padding: 0.5rem 0.75rem;
    }

    .current-lang {
        display: none;
    }

    .language-dropdown {
        right: auto;
        left: 50%;
        transform: translateX(-50%) translateY(-10px);
    }

    .language-selector.active .language-dropdown {
        transform: translateX(-50%) translateY(0);
    }
}