/* ============================================
   Claude Cowork Guide Landing Page
   Dark Mode Styles - Indigo Accent
   ============================================ */

/* CSS Custom Properties */
:root {
    /* ===== LIGHT MODE (default) ===== */
    --bg-primary: #f8fafc;
    --bg-secondary: #ffffff;
    --bg-tertiary: #f1f5f9;
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --text-muted: #94a3b8;
    --border: #e2e8f0;
    --border-light: #f1f5f9;

    /* Header backdrop */
    --header-bg: rgba(248, 250, 252, 0.95);

    /* Code blocks */
    --code-bg: #f1f5f9;
    --code-text: #1e293b;

    /* Indigo accent (unchanged) */
    --accent: #6366f1;
    --accent-hover: #818cf8;
    --accent-secondary: #4f46e5;
    --accent-secondary-hover: #6366f1;

    /* Preview badge */
    --preview-bg: #fbbf24;
    --preview-text: #78350f;

    /* Typography */
    --font-sans: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    --font-mono: ui-monospace, SFMono-Regular, 'SF Mono', Menlo, Consolas, 'Liberation Mono', monospace;

    /* Spacing */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
    --space-3xl: 4rem;
    --space-4xl: 5rem;

    /* Layout */
    --max-width: 1200px;
    --border-radius: 8px;
    --border-radius-lg: 12px;

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-normal: 250ms ease;
    --ease-out-back: cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* ===== DARK MODE (toggle only) ===== */
[data-theme="dark"] {
    --bg-primary: #0d1117;
    --bg-secondary: #161b22;
    --bg-tertiary: #21262d;
    --text-primary: #c9d1d9;
    --text-secondary: #9ca3af;
    --text-muted: #9ca3af;
    --border: #30363d;
    --border-light: #21262d;

    --header-bg: rgba(13, 17, 23, 0.95);

    --code-bg: #21262d;
    --code-text: #c9d1d9;
}

/* Reset & Base */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-sans);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Container */
.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--space-lg);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.3;
    color: var(--text-primary);
}

a {
    color: var(--accent);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--accent-hover);
    text-decoration: underline;
}

code {
    font-family: var(--font-mono);
    background-color: var(--code-bg);
    color: var(--code-text);
    padding: 0.15em 0.4em;
    border-radius: 4px;
    font-size: 0.9em;
}

kbd {
    display: inline-block;
    padding: 0.2em 0.5em;
    font-family: var(--font-mono);
    font-size: 0.85em;
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: 4px;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.5rem;
    font-size: 1rem;
    font-weight: 500;
    border-radius: var(--border-radius);
    border: none;
    cursor: pointer;
    transition: all var(--transition-fast);
    text-decoration: none;
}

.btn:hover {
    text-decoration: none;
}

.btn-primary {
    background: linear-gradient(135deg, #4f46e5 0%, #7c3aed 100%);
    color: #ffffff !important;
    font-weight: 600;
    padding: 1rem 2rem;
    font-size: 1.05rem;
    border: none;
    box-shadow: 0 4px 15px rgba(99, 102, 241, 0.4);
    transition: transform 0.2s var(--ease-out-back),
                box-shadow 0.2s ease;
}

.btn-primary:hover {
    background: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
    color: #ffffff !important;
    transform: translateY(-3px) scale(1.02);
    box-shadow: 0 8px 25px rgba(99, 102, 241, 0.5);
}

.btn-primary:active {
    transform: translateY(0) scale(1);
}

.btn-secondary {
    background: transparent;
    color: var(--text-primary);
    border: 1px solid var(--border);
    transition: border-color 0.15s ease, color 0.15s ease;
}

.btn-secondary:hover {
    border-color: var(--accent);
    color: var(--accent);
}

.btn-outline {
    background-color: transparent;
    color: var(--accent);
    border: 1px solid var(--accent);
}

.btn-outline:hover {
    background-color: var(--accent);
    color: var(--bg-primary);
}

/* ============================================
   Header
   ============================================ */
.header {
    position: sticky;
    top: 0;
    z-index: 100;
    background-color: var(--header-bg);
    -webkit-backdrop-filter: blur(8px);
    backdrop-filter: blur(8px);
    border-bottom: 1px solid var(--border);
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-weight: 600;
    font-size: 1.1rem;
    color: var(--text-primary);
}

.logo:hover {
    color: var(--text-primary);
    text-decoration: none;
}

.logo-icon {
    font-family: var(--font-mono);
    color: var(--accent);
}

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

.nav-links a {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.nav-links a:hover {
    color: var(--text-primary);
    text-decoration: none;
}

/* Nav actions separator */
.nav-actions {
    display: flex;
    align-items: center;
    gap: 1.25rem;
    padding-left: 1.5rem;
    margin-left: 1rem;
    border-left: 1px solid var(--border-light);
}

/* Language switcher */
.lang-switcher {
    display: inline-flex;
    align-items: center;
    padding: 0.4rem 0.75rem;
    background: var(--bg-secondary);
    color: var(--text-secondary);
    border: 1px solid var(--border);
    border-radius: 6px;
    font-size: 0.875rem;
    transition: all var(--transition-fast);
    min-height: 44px;  /* WCAG touch target */
    text-decoration: none;
}

.lang-switcher:hover {
    color: var(--accent);
    border-color: var(--accent);
    background: var(--bg-tertiary);
    text-decoration: none;
}

/* Theme Toggle */
.theme-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 8px;
    cursor: pointer;
    color: var(--text-secondary);
    transition: all var(--transition-fast);
    position: relative;
    overflow: hidden;
}

.theme-toggle:hover {
    color: var(--accent);
    border-color: var(--accent);
}

.theme-toggle:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
}

/* Animations between icons */
.theme-toggle svg {
    position: absolute;
    transition: opacity 0.2s ease, transform 0.2s ease;
}

/* Light mode: show moon, hide sun */
.theme-toggle .icon-sun {
    opacity: 0;
    transform: rotate(-90deg) scale(0);
}

.theme-toggle .icon-moon {
    opacity: 1;
    transform: rotate(0) scale(1);
}

/* Dark mode: show sun, hide moon */
[data-theme="dark"] .theme-toggle .icon-sun {
    opacity: 1;
    transform: rotate(0) scale(1);
}

[data-theme="dark"] .theme-toggle .icon-moon {
    opacity: 0;
    transform: rotate(90deg) scale(0);
}

/* Cross-link to sibling guide */
.nav-crosslink {
    color: var(--text-secondary);
    font-size: 0.85rem;
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    transition: background 0.2s;
    margin-left: 0.5rem;
}
.nav-crosslink:hover {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-primary);
}
.nav-crosslink-label {
    opacity: 0.7;
}

/* Mobile Menu Button */
.menu-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    padding: var(--space-xs);
}

.menu-toggle svg {
    width: 24px;
    height: 24px;
}

/* ============================================
   Research Preview Banner
   ============================================ */
.preview-banner {
    background: linear-gradient(90deg, #f59e0b 0%, #fbbf24 100%);
    border-bottom: none;
    padding: 0.75rem 0;
}

.preview-banner .container {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-md);
    flex-wrap: wrap;
}

.preview-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    background: #78350f;
    color: #fbbf24;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: var(--space-xs) var(--space-sm);
    border-radius: var(--border-radius);
}

.preview-text {
    color: #78350f;
    font-weight: 500;
    font-size: 0.875rem;
}

/* ============================================
   Hero Section
   ============================================ */
.hero {
    padding: var(--space-4xl) 0;
    text-align: center;
    background: linear-gradient(180deg, var(--bg-tertiary) 0%, var(--bg-primary) 100%);
}

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

.hero-logo {
    width: 120px;
    height: auto;
    margin-bottom: var(--space-lg);
    filter: drop-shadow(0 0 20px rgba(99, 102, 241, 0.3));
}

@media (max-width: 480px) {
    .hero-logo {
        width: 80px;
    }
}

.hero-title {
    font-size: clamp(2.75rem, 6vw + 0.5rem, 4.5rem);
    font-weight: 700;
    line-height: 1.15;
    letter-spacing: -0.02em;
    margin-bottom: var(--space-md);
    background: linear-gradient(135deg, var(--text-primary) 0%, var(--accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-tagline {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: var(--space-sm);
}

.hero-stats {
    font-family: var(--font-mono);
    font-size: 1rem;
    color: var(--text-muted);
    margin-bottom: var(--space-xl);
}

.hero-ctas {
    display: flex;
    gap: var(--space-md);
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: var(--space-xl);
}

.hero-badges {
    display: flex;
    gap: var(--space-sm);
    justify-content: center;
    flex-wrap: wrap;
}

.hero-badges img {
    height: 28px;
}

/* Hero share buttons */
.hero-share {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-top: 1.5rem;
    justify-content: center;
}

.share-label {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.share-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: 8px;
    background: var(--bg-tertiary);
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 600;
    transition: all 0.2s ease;
}

.share-btn:hover {
    background: var(--accent);
    color: white;
    text-decoration: none;
}

/* Stats styling */
.stat-value {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
}

.stat-label {
    font-size: 0.875rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* ============================================
   Sections
   ============================================ */
.section {
    padding: var(--space-4xl) 0;
}

.section.section-minor {
    padding: var(--space-2xl) 0;
}

/* Alternance des backgrounds pour rythme visuel */
.section:nth-child(odd) {
    background-color: var(--bg-primary);
}

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

/* Dark mode : utiliser bg-tertiary pour plus de contraste */
[data-theme="dark"] .section:nth-child(even) {
    background-color: var(--bg-tertiary);
}

/* Bordure subtile entre sections pour séparation claire */
.section + .section {
    border-top: 1px solid var(--border-light);
}

.section-title {
    font-size: 2rem;
    font-weight: 700;
    letter-spacing: -0.01em;
    text-align: center;
    margin-bottom: var(--space-sm);
}

.section-subtitle {
    text-align: center;
    color: var(--text-secondary);
    margin-bottom: var(--space-2xl);
    font-size: 1.1rem;
}

.section-badge {
    display: block;
    width: fit-content;
    margin-left: auto;
    margin-right: auto;
    padding: var(--space-xs) var(--space-md);
    background: linear-gradient(135deg, var(--accent-secondary) 0%, var(--accent) 100%);
    color: #ffffff;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-radius: 20px;
    margin-bottom: var(--space-md);
}

/* ============================================
   TL;DR Section
   ============================================ */
.tldr-table-wrapper {
    overflow-x: auto;
    margin-bottom: var(--space-xl);
}

.tldr-table {
    width: 100%;
    max-width: 600px;
    margin: 0 auto;
    border-collapse: collapse;
}

.tldr-table th,
.tldr-table td {
    padding: var(--space-md);
    text-align: left;
    border-bottom: 1px solid var(--border);
}

.tldr-table th {
    font-weight: 600;
    color: var(--text-secondary);
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.tldr-table td:last-child {
    text-align: right;
    font-family: var(--font-mono);
    font-size: 0.9rem;
    color: var(--text-secondary);
}

/* ============================================
   Why This Guide Section - Before/After Comparison
   ============================================ */
.comparison-cards {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-xl);
    max-width: 900px;
    margin: 0 auto;
}

.comparison-card {
    background-color: var(--bg-secondary);
    border: 2px solid var(--border);
    border-radius: var(--border-radius-lg);
    padding: var(--space-xl);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.comparison-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
}

.comparison-without {
    border-color: rgba(248, 81, 73, 0.3);
}

.comparison-with {
    border-color: rgba(99, 102, 241, 0.3);
    background: linear-gradient(135deg, var(--bg-secondary) 0%, rgba(99, 102, 241, 0.05) 100%);
}

.comparison-header {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    margin-bottom: var(--space-lg);
    padding-bottom: var(--space-md);
    border-bottom: 1px solid var(--border);
}

.comparison-icon {
    font-size: 1.5rem;
}

.comparison-header h3 {
    margin: 0;
    font-size: 1.1rem;
    font-weight: 600;
}

.comparison-without .comparison-header h3 {
    color: #f85149;
}

.comparison-with .comparison-header h3 {
    color: var(--accent);
}

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

.comparison-list li {
    display: flex;
    align-items: flex-start;
    gap: var(--space-sm);
    padding: var(--space-sm) 0;
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.5;
}

.status-icon {
    flex-shrink: 0;
    font-weight: 700;
    font-size: 0.9rem;
}

.status-icon.bad {
    color: #f85149;
}

.status-icon.good {
    color: var(--accent);
}

@media (max-width: 768px) {
    .comparison-cards {
        grid-template-columns: 1fr;
    }
}

/* ============================================
   Features Section
   ============================================ */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-lg);
}

.feature-card {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--border-radius-lg);
    padding: var(--space-xl);
    transition: transform 0.25s var(--ease-out-back),
                box-shadow 0.25s ease,
                border-color var(--transition-normal);
    position: relative;
}

.feature-card:hover {
    border-color: var(--text-secondary);
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
}

/* Featured card */
.feature-card.featured {
    border-color: var(--accent);
}

.card-badge {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: var(--accent-secondary);
    color: white;
    padding: 0.25rem 0.75rem;
    font-size: 0.7rem;
    font-weight: 600;
    border-radius: 4px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.feature-card-link {
    text-decoration: none;
    cursor: pointer;
}

.feature-card-link:hover {
    border-color: var(--accent);
    text-decoration: none;
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(99, 102, 241, 0.15);
}

.feature-card-link .feature-meta {
    color: var(--accent);
}

.feature-icon {
    font-size: 2rem;
    margin-bottom: var(--space-md);
    display: block;
}

.feature-card h3 {
    font-size: 1.2rem;
    margin-bottom: var(--space-sm);
}

.feature-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-bottom: var(--space-md);
}

.feature-meta {
    display: inline-block;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--text-muted);
    background-color: var(--bg-tertiary);
    padding: var(--space-xs) var(--space-sm);
    border-radius: 4px;
}

/* ============================================
   Getting Started Section
   ============================================ */
.getting-started {
    background: var(--bg-primary);
}

.getting-started .container {
    text-align: center;
}

.getting-started-badge {
    display: inline-block;
    background: var(--accent-secondary);
    color: white;
    padding: 0.35rem 0.9rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--space-md);
}

.setup-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--space-xl);
    margin-top: var(--space-2xl);
}

.setup-step {
    position: relative;
    padding: var(--space-xl);
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--border-radius-lg);
    transition: all var(--transition-normal);
    text-align: left;
}

.setup-step:hover {
    border-color: var(--accent);
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(99, 102, 241, 0.15);
}

.step-num {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 2.5rem;
    height: 2.5rem;
    background: var(--accent);
    color: white;
    font-size: 1.25rem;
    font-weight: 700;
    border-radius: 50%;
    margin-bottom: var(--space-md);
}

.setup-step h3 {
    font-size: 1.25rem;
    margin-bottom: var(--space-sm);
    color: var(--text-primary);
}

.setup-step p {
    color: var(--text-secondary);
    line-height: 1.6;
}

.setup-step a {
    color: var(--accent);
    text-decoration: underline;
    text-underline-offset: 2px;
}

.setup-step a:hover {
    color: var(--accent-hover);
}

/* Responsive: stack on mobile */
@media (max-width: 768px) {
    .setup-steps {
        grid-template-columns: 1fr;
        gap: var(--space-lg);
    }
}

/* ============================================
   Workflows Section
   ============================================ */
.workflow-tabs {
    display: flex;
    gap: var(--space-md);
    flex-wrap: wrap;
    margin-bottom: var(--space-xl);
    padding-bottom: var(--space-lg);
    border-bottom: 1px solid var(--border);
}

.workflow-tab {
    background-color: transparent;
    border: 1px solid var(--border);
    border-radius: var(--border-radius-md);
    padding: var(--space-sm) var(--space-md);
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.workflow-tab:hover {
    border-color: var(--accent);
    color: var(--text-primary);
    background-color: rgba(99, 102, 241, 0.05);
}

.workflow-tab.active {
    border-color: var(--accent);
    background-color: var(--accent);
    color: white;
}

.workflow-tab.active:hover {
    background-color: #5558cc;
}

.workflows-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    max-width: 1100px;
    margin: 0 auto;
    gap: var(--space-lg);
}

.workflow-card {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--border-radius-lg);
    padding: var(--space-xl);
    transition: all var(--transition-normal);
    text-decoration: none;
    display: block;
}

.workflow-card:hover {
    border-color: var(--accent);
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(99, 102, 241, 0.15);
    text-decoration: none;
}

.workflow-icon {
    font-size: 2rem;
    margin-bottom: var(--space-md);
    display: block;
}

.workflow-card h3 {
    font-size: 1.1rem;
    margin-bottom: var(--space-sm);
    color: var(--text-primary);
}

.workflow-card p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: var(--space-md);
}

.workflow-complexity {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 600;
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.complexity-beginner {
    background: rgba(34, 197, 94, 0.2);
    color: #22c55e;
}

.complexity-intermediate {
    background: rgba(251, 191, 36, 0.2);
    color: #fbbf24;
}

.complexity-advanced {
    background: rgba(239, 68, 68, 0.2);
    color: #ef4444;
}

/* ============================================
   Prompts Library Section
   ============================================ */
.prompts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: var(--space-lg);
    margin-bottom: var(--space-xl);
}

.prompt-category {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--border-radius-lg);
    padding: var(--space-xl);
    text-align: center;
    text-decoration: none;
    transition: all var(--transition-normal);
}

.prompt-category:hover {
    border-color: var(--accent);
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(99, 102, 241, 0.15);
    text-decoration: none;
}

.prompt-icon {
    font-size: 2rem;
    margin-bottom: var(--space-sm);
    display: block;
}

.prompt-category h3 {
    font-size: 1rem;
    margin-bottom: var(--space-xs);
    color: var(--text-primary);
}

.prompt-category p {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: var(--space-sm);
}

.prompt-count {
    display: inline-block;
    background: var(--accent-secondary);
    color: white;
    font-size: 0.75rem;
    font-weight: 600;
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
}

/* Prompt Example Box */
.prompt-example {
    max-width: 700px;
    margin: 0 auto;
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: var(--border-radius-lg);
    overflow: hidden;
}

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

.prompt-example-title {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.copy-btn {
    background-color: transparent;
    border: 1px solid var(--border);
    color: var(--text-secondary);
    padding: var(--space-xs) var(--space-sm);
    border-radius: 4px;
    cursor: pointer;
    font-size: 0.8rem;
    transition: all var(--transition-fast);
    min-height: 44px;  /* WCAG touch target */
    min-width: 44px;
}

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

.copy-btn.copied {
    background-color: var(--accent-secondary);
    border-color: var(--accent-secondary);
    color: #ffffff;
}

.prompt-example pre {
    padding: var(--space-md);
    margin: 0;
    overflow-x: auto;
}

.prompt-example code {
    background: none;
    padding: 0;
    font-size: 0.9rem;
    line-height: 1.6;
    display: block;
    white-space: pre-wrap;
}

/* ============================================
   Comparison Table Section
   ============================================ */
.comparison-table .table-wrapper {
    overflow-x: auto;
    margin: var(--space-xl) 0;
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--border);
}

.comparison-feature-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.95rem;
    background-color: var(--bg-secondary);
}

.comparison-feature-table th,
.comparison-feature-table td {
    padding: var(--space-md) var(--space-lg);
    text-align: left;
    border-bottom: 1px solid var(--border);
}

.comparison-feature-table th {
    background-color: var(--bg-tertiary);
    font-weight: 600;
    color: var(--text-primary);
    white-space: nowrap;
}

.comparison-feature-table th:first-child {
    background-color: var(--bg-tertiary);
    position: sticky;
    left: 0;
    z-index: 1;
}

.comparison-feature-table td:first-child {
    background-color: var(--bg-secondary);
    font-weight: 500;
    position: sticky;
    left: 0;
    z-index: 1;
}

.comparison-feature-table tbody tr:hover {
    background-color: rgba(99, 102, 241, 0.05);
}

.comparison-feature-table tbody tr:last-child td {
    border-bottom: none;
}

.feature-yes {
    color: #22c55e;
    font-weight: 600;
}

.feature-no {
    color: #8b949e;
}

.feature-partial {
    color: #f59e0b;
    font-weight: 500;
}

.comparison-note {
    text-align: center;
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-top: var(--space-lg);
    padding: var(--space-md);
    background-color: var(--bg-secondary);
    border-radius: var(--border-radius);
    border-left: 3px solid var(--accent);
}

@media (max-width: 768px) {
    .comparison-feature-table th,
    .comparison-feature-table td {
        padding: var(--space-sm) var(--space-md);
        font-size: 0.85rem;
    }
}

/* ============================================
   Key Terms Section
   ============================================ */
.key-terms {
    background: var(--bg-secondary);
}

.key-terms .section-badge {
    display: block;
    width: fit-content;
    margin-left: auto;
    margin-right: auto;
    background: var(--preview-bg);
    color: var(--preview-text);
    padding: 0.35rem 0.9rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--space-md);
}

.terms-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--space-lg);
    margin-bottom: var(--space-xl);
}

.term-card {
    background: var(--bg-primary);
    border: 1px solid var(--border);
    border-radius: var(--border-radius-lg);
    padding: var(--space-lg);
    transition: all var(--transition-normal);
}

.term-card:hover {
    border-color: var(--accent);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.15);
}

.term-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--accent);
    margin-bottom: var(--space-sm);
}

.term-definition {
    font-size: 0.95rem;
    line-height: 1.6;
    color: var(--text-secondary);
    margin: 0;
}

.terms-footer {
    text-align: center;
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-top: var(--space-xl);
    padding-top: var(--space-xl);
    border-top: 1px solid var(--border);
}

.terms-footer a {
    color: var(--accent);
    text-decoration: underline;
    text-underline-offset: 2px;
    font-weight: 500;
}

.terms-footer a:hover {
    color: var(--accent-hover);
}

/* Responsive: single column on mobile */
@media (max-width: 768px) {
    .terms-grid {
        grid-template-columns: 1fr;
    }
}

/* ============================================
   Golden Rules Section
   ============================================ */
.golden-rules {
    background: linear-gradient(180deg, var(--bg-secondary) 0%, var(--bg-primary) 100%);
}

.rules-list {
    max-width: 800px;
    margin: 0 auto;
}

.rule {
    display: flex;
    gap: var(--space-lg);
    padding: var(--space-lg);
    background-color: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--border-radius);
    margin-bottom: var(--space-md);
    transition: border-color var(--transition-normal);
}

.rule:hover {
    border-color: var(--accent);
}

.rule-number {
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 48px;
    height: 48px;
    background-color: var(--accent);
    color: var(--bg-primary);
    font-weight: 700;
    font-size: 1.25rem;
    border-radius: 50%;
}

.rule-content h3 {
    font-size: 1.1rem;
    margin-bottom: var(--space-xs);
}

.rule-content p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* ============================================
   FAQ Section
   ============================================ */
.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--border-radius);
    margin-bottom: var(--space-md);
    overflow: hidden;
}

.faq-item summary {
    padding: var(--space-lg);
    cursor: pointer;
    font-weight: 500;
    list-style: none;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.faq-item summary::-webkit-details-marker {
    display: none;
}

.faq-item summary::after {
    content: '+';
    font-size: 1.5rem;
    color: var(--text-secondary);
    transition: transform var(--transition-fast);
}

.faq-item[open] summary::after {
    content: '-';
}

.faq-item[open] summary {
    border-bottom: 1px solid var(--border);
}

.faq-item p {
    padding: var(--space-lg);
    color: var(--text-secondary);
    margin: 0;
}

/* Accordion animation */
details[open] > *:not(summary) {
    animation: slideDown 0.2s ease-out;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-8px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ============================================
   Cross-Link Section (Cowork <-> Code)
   ============================================ */

/* Hero crosslink subtitle - DEPRECATED, use hero-code-box instead */
.hero-crosslink {
    font-size: 0.95rem;
    color: var(--text-secondary);
    margin-top: var(--space-lg);
}

.hero-crosslink a {
    color: var(--accent);
    text-decoration: underline;
    text-underline-offset: 2px;
}

.hero-crosslink a:hover {
    color: var(--accent-hover);
}

/* Hero Code Box - Styled cross-sell (Claude Code on Cowork landing) */
.hero-code-box {
    max-width: 600px;
    margin: var(--space-xl) auto 0;
    padding: var(--space-lg);
    background: var(--bg-secondary);
    border: 2px solid var(--border);
    border-radius: var(--border-radius-lg);
    text-align: center;
}

.hero-code-lead {
    font-size: 1rem;
    color: var(--text-secondary);
    margin-bottom: var(--space-md);
    line-height: 1.5;
}

.hero-code-lead strong {
    color: var(--accent);
}

.hero-code-prereq {
    display: flex;
    gap: var(--space-sm);
    justify-content: center;
    margin-bottom: var(--space-lg);
}

.prereq-tag {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    background: var(--bg-tertiary);
    color: var(--text-muted);
    font-size: 0.85rem;
    border-radius: var(--border-radius);
    font-family: var(--font-mono);
}

.btn-code {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    background: transparent;
    color: var(--accent);
    border: 2px solid var(--accent);
    border-radius: var(--border-radius);
    font-weight: 600;
    font-size: 0.95rem;
    text-decoration: none;
    transition: all var(--transition-normal);
    cursor: pointer;
}

.btn-code:hover {
    background: var(--accent);
    color: white;
    text-decoration: none;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.3);
}

/* Crosslink section background */
.crosslink-section {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}

/* Signal badges */
.crosslink-signals {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--space-sm);
    margin: var(--space-lg) 0 var(--space-xl);
}

.crosslink-signals span {
    background: var(--bg-tertiary);
    padding: 0.5rem 1rem;
    border-radius: var(--border-radius);
    font-size: 0.9rem;
    color: var(--text-secondary);
}

/* Crosslink card - horizontal layout */
.crosslink-card {
    display: flex;
    align-items: center;
    gap: var(--space-lg);
    max-width: 500px;
    margin: 0 auto;
    padding: var(--space-lg);
    background: var(--bg-primary);
    border: 2px solid var(--border);
    border-radius: var(--border-radius-lg);
    text-decoration: none;
    transition: all var(--transition-normal);
}

.crosslink-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(99, 102, 241, 0.15);
    border-color: var(--accent);
    text-decoration: none;
}

.crosslink-icon {
    font-size: 2.5rem;
    flex-shrink: 0;
}

.crosslink-content {
    flex: 1;
    text-align: left;
}

.crosslink-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
}

.crosslink-stats {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.crosslink-cta {
    color: var(--accent);
    font-weight: 600;
    font-size: 0.9rem;
    white-space: nowrap;
}

/* Responsive: stack on mobile */
@media (max-width: 600px) {
    .crosslink-card {
        flex-direction: column;
        text-align: center;
    }

    .crosslink-content {
        text-align: center;
    }

    .crosslink-signals {
        gap: var(--space-xs);
    }

    .crosslink-signals span {
        font-size: 0.85rem;
        padding: 0.4rem 0.8rem;
    }
}

/* ============================================
   Footer
   ============================================ */
.footer {
    background-color: var(--bg-secondary);
    border-top: 1px solid var(--border);
    padding: var(--space-3xl) 0 var(--space-xl);
}

.footer-cta {
    text-align: center;
    padding: var(--space-2xl) var(--space-xl);
    margin-bottom: var(--space-2xl);
    background: linear-gradient(135deg, var(--bg-tertiary) 0%, var(--bg-secondary) 100%);
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--border);
}

.footer-cta h3 {
    font-size: 1.5rem;
    margin-bottom: var(--space-sm);
    color: var(--text-primary);
}

.footer-cta p {
    color: var(--text-secondary);
    margin-bottom: var(--space-lg);
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--space-2xl);
    margin-bottom: var(--space-2xl);
}

.footer-section h4 {
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-secondary);
    margin-bottom: var(--space-md);
}

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

.footer-section li {
    margin-bottom: var(--space-sm);
}

.footer-section a {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

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

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

.footer-bottom p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: var(--space-sm);
}

.footer-bottom .version {
    font-family: var(--font-mono);
    color: var(--text-muted);
    font-size: 0.8rem;
}

/* ============================================
   Responsive Design
   ============================================ */

/* Tablet */
@media (max-width: 768px) {
    .section {
        padding: var(--space-2xl) 0;
    }

    .hero {
        padding: var(--space-2xl) 0;
    }

    .hero-title {
        font-size: 2.5rem;
    }

    /* Hamburger menu for tablet/mobile */
    .menu-toggle {
        display: block;
        order: 3;
    }

    /* Theme toggle visible before hamburger on mobile */
    .theme-toggle {
        order: 2;
    }

    .nav-links {
        display: none;
        position: fixed;
        top: 60px;
        left: 0;
        right: 0;
        height: calc(100vh - 60px);
        height: calc(100dvh - 60px);
        background: #0a0a0f;
        background: var(--bg-primary);
        flex-direction: column;
        align-items: center;
        justify-content: flex-start;
        padding-top: var(--space-xl);
        gap: var(--space-lg);
        z-index: 999;
    }

    .nav-links.active {
        display: flex;
    }

    .nav-links a {
        font-size: 1.1rem;
        padding: var(--space-sm) var(--space-lg);
    }

    .nav-links .search-trigger {
        order: -1;
        width: auto;
        padding: var(--space-sm) var(--space-lg);
    }

    .nav-links .nav-crosslink {
        display: block;
        padding: var(--space-sm) var(--space-lg);
        margin-left: 0;
    }

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

    .rule {
        flex-direction: column;
        text-align: center;
    }

    .rule-number {
        margin: 0 auto;
    }
}

/* Mobile */
@media (max-width: 480px) {
    /* Fix horizontal scroll */
    html, body {
        overflow-x: hidden;
    }

    .container {
        padding: 0 var(--space-md);
        max-width: 100%;
    }

    /* Mobile Header */
    .nav {
        padding: var(--space-sm) 0;
    }

    .logo {
        font-size: 0.9rem;
    }

    .logo-text {
        display: none;
    }

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

    .hero-tagline {
        font-size: 1rem;
    }

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

    .hero-ctas .btn {
        width: 100%;
    }

    .hero-badges {
        flex-direction: column;
        align-items: center;
    }

    .section-title {
        font-size: 1.5rem;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }
}

/* Scroll progress bar */
.scroll-progress {
    position: fixed;
    top: 0;
    left: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--accent) 0%, var(--accent-hover) 100%);
    z-index: 1001;
    width: 0%;
    transition: width 0.1s linear;
}

/* Fade-in animation for sections */
/* Fallback si JS echoue - sections visibles par defaut */
.section {
    opacity: 1;
    transform: none;
}

/* JS loaded - reactiver animations */
.js-loaded .section {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.js-loaded .section.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Hero should be visible immediately */
.hero {
    opacity: 1;
    transform: none;
}

/* Skip link for accessibility */
.skip-link {
    position: absolute;
    top: -100%;
    left: 50%;
    transform: translateX(-50%);
    background: var(--accent);
    color: var(--bg-primary);
    padding: var(--space-sm) var(--space-lg);
    border-radius: var(--border-radius);
    font-weight: 600;
    z-index: 1000;
    transition: top 0.2s ease;
}

.skip-link:focus {
    top: var(--space-md);
    outline: none;
}

/* Focus states for accessibility */
:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
}

.btn:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 3px;
}

/* Links hover enhancement */
a:not(.btn):not(.feature-card-link):not(.workflow-card):not(.prompt-category):hover {
    color: var(--accent);
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }

    html {
        scroll-behavior: auto;
    }

    .section {
        opacity: 1;
        transform: none;
    }
}

/* ============================================
   Light/Dark Mode Shadows & Transitions
   ============================================ */

/* Cards in light mode need more shadow for depth */
.feature-card,
.workflow-card,
.prompt-category,
.term-card,
.setup-step,
.rule {
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.feature-card:hover,
.workflow-card:hover,
.prompt-category:hover,
.term-card:hover,
.setup-step:hover {
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
}

/* Dark mode: no shadow, border is enough */
[data-theme="dark"] .feature-card,
[data-theme="dark"] .workflow-card,
[data-theme="dark"] .prompt-category,
[data-theme="dark"] .term-card,
[data-theme="dark"] .setup-step,
[data-theme="dark"] .rule {
    box-shadow: none;
}

/* Smooth theme transitions */
@media (prefers-reduced-motion: no-preference) {
    body,
    .header,
    .feature-card,
    .workflow-card,
    .search-modal-content {
        transition: background-color 0.3s ease, border-color 0.3s ease;
    }
}

/* ===== GLOBAL SEARCH MODAL ===== */

.search-modal {
    position: fixed;
    inset: 0;
    z-index: 1000;
    display: flex;
    align-items: flex-start;
    justify-content: center;
    padding: 5vh 1rem;
}

.search-modal[hidden] {
    display: none;
}

.search-modal-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.75);
    backdrop-filter: blur(4px);
}

.search-modal-content {
    position: relative;
    width: 100%;
    max-width: 560px;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 12px;
    box-shadow: 0 16px 70px rgba(0, 0, 0, 0.5);
    overflow: hidden;
}

/* Search Input */
.search-input-wrapper {
    display: flex;
    align-items: center;
    padding: 1rem;
    border-bottom: 1px solid var(--border);
    gap: 0.75rem;
}

.search-icon {
    width: 20px;
    height: 20px;
    color: var(--text-secondary);
    flex-shrink: 0;
}

#search-input {
    flex: 1;
    background: transparent;
    border: none;
    outline: none;
    font-size: 1rem;
    color: var(--text-primary);
    font-family: inherit;
}

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

/* Search Results */
.search-results {
    max-height: 60vh;
    overflow-y: auto;
    padding: 0.5rem;
    list-style: none;
    margin: 0;
}

.search-result-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    border-radius: 8px;
    cursor: pointer;
    min-height: 48px;
    transition: background-color 0.15s ease;
}

.search-result-item:hover,
.search-result-item[aria-selected="true"] {
    background: var(--bg-primary);
}

.search-result-type {
    font-size: 0.7rem;
    text-transform: uppercase;
    color: var(--text-secondary);
    min-width: 80px;
    flex-shrink: 0;
}

.search-result-title {
    color: var(--text-primary);
    flex: 1;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.search-result-category {
    margin-left: auto;
    font-size: 0.75rem;
    color: var(--text-secondary);
    background: var(--bg-primary);
    padding: 0.2rem 0.5rem;
    border-radius: 4px;
}

/* No results */
.search-no-results {
    padding: 2rem;
    text-align: center;
    color: var(--text-secondary);
    list-style: none;
}

/* Header search trigger */
.search-trigger {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.4rem 0.75rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 6px;
    color: var(--text-secondary);
    cursor: pointer;
    transition: border-color 0.2s ease, color 0.2s ease;
    font-size: 0.875rem;
    min-height: 44px;  /* WCAG touch target */
}

.search-trigger:hover {
    border-color: var(--accent);
    color: var(--text-primary);
}

.search-trigger svg {
    width: 16px;
    height: 16px;
}

/* Keyboard hints */
.search-kbd {
    font-size: 0.65rem;
    padding: 0.15rem 0.4rem;
    background: var(--bg-primary);
    border: 1px solid var(--border);
    border-radius: 4px;
    font-family: inherit;
}

@media (max-width: 768px) {
    .search-kbd {
        display: none;
    }

    .search-trigger {
        padding: 0.5rem;
    }
}

/* Visually hidden but accessible */
.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}