:root {
    /* Palette de couleurs apaisantes - thème hypnose */
    --primary-color: #6366f1;
    --primary-dark: #4f46e5;
    --primary-light: #818cf8;
    --secondary-color: #8b5cf6;
    --accent-color: #ec4899;
    
    --bg-primary: #ffffff;
    --bg-secondary: #f8fafc;
    --bg-tertiary: #f1f5f9;
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-tertiary: #94a3b8;
    
    --border-color: #e2e8f0;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    
    --sidebar-width: 280px;
    --header-height: 60px;
    --transition-speed: 0.3s;
}

[data-theme="dark"] {
    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --bg-tertiary: #334155;
    --text-primary: #f1f5f9;
    --text-secondary: #cbd5e1;
    --text-tertiary: #64748b;
    --border-color: #334155;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Inter', 'Roboto', 'Oxygen', 'Ubuntu', sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    transition: background-color var(--transition-speed), color var(--transition-speed);
}

/* Layout */
.app-container {
    display: flex;
    min-height: 100vh;
}

/* Sidebar */
.sidebar {
    width: var(--sidebar-width);
    background-color: var(--bg-secondary);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    position: fixed;
    height: 100vh;
    overflow-y: auto;
    transition: transform var(--transition-speed);
    z-index: 1000;
}

.sidebar-header {
    padding: 1.5rem;
    border-bottom: 1px solid var(--border-color);
}

.sidebar-header h1 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 0.25rem;
}

.subtitle {
    font-size: 0.875rem;
    color: var(--text-tertiary);
}

/* Search */
.search-container {
    padding: 1rem;
    border-bottom: 1px solid var(--border-color);
    position: relative;
}

.search-input {
    width: 100%;
    padding: 0.625rem 1rem;
    border: 1px solid var(--border-color);
    border-radius: 0.5rem;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    font-size: 0.875rem;
    transition: all 0.2s;
}

.search-input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.search-results {
    position: absolute;
    top: 100%;
    left: 1rem;
    right: 1rem;
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 0.5rem;
    margin-top: 0.5rem;
    max-height: 400px;
    overflow-y: auto;
    box-shadow: var(--shadow-lg);
    display: none;
    z-index: 100;
}

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

.search-result-item {
    padding: 0.75rem 1rem;
    border-bottom: 1px solid var(--border-color);
    cursor: pointer;
    transition: background-color 0.2s;
}

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

.search-result-item:hover {
    background-color: var(--bg-tertiary);
}

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

.search-result-section {
    font-size: 0.75rem;
    color: var(--text-tertiary);
}

/* Navigation */
.nav-menu {
    flex: 1;
    overflow-y: auto;
    padding: 1rem 0;
}

.nav-section {
    margin-bottom: 0.5rem;
}

.nav-section-header {
    padding: 0.75rem 1rem;
    font-weight: 600;
    font-size: 0.875rem;
    color: var(--text-secondary);
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: background-color 0.2s;
    user-select: none;
}

.nav-section-header:hover {
    background-color: var(--bg-tertiary);
}

.nav-section-icon {
    font-size: 1.25rem;
}

.nav-section-title {
    flex: 1;
}

.nav-section-toggle {
    transition: transform 0.2s;
}

.nav-section.collapsed .nav-section-toggle {
    transform: rotate(-90deg);
}

.nav-section-description {
    font-size: 0.75rem;
    color: var(--text-tertiary);
    font-weight: 400;
}

.nav-items {
    display: block;
    overflow: hidden;
    transition: max-height 0.3s ease-out;
}

.nav-section.collapsed .nav-items {
    max-height: 0 !important;
}

.nav-item {
    padding: 0.5rem 1rem 0.5rem 3rem;
    font-size: 0.875rem;
    color: var(--text-secondary);
    text-decoration: none;
    display: block;
    transition: all 0.2s;
    border-left: 3px solid transparent;
}

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

.nav-item.active {
    background-color: rgba(99, 102, 241, 0.1);
    color: var(--primary-color);
    border-left-color: var(--primary-color);
    font-weight: 500;
}

/* Sidebar Footer */
.sidebar-footer {
    padding: 1rem;
    border-top: 1px solid var(--border-color);
}

.theme-toggle {
    width: 100%;
    padding: 0.625rem;
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 0.5rem;
    cursor: pointer;
    font-size: 1.25rem;
    transition: all 0.2s;
}

.theme-toggle:hover {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
    transform: scale(1.05);
}

/* Main Content */
.main-content {
    flex: 1;
    margin-left: var(--sidebar-width);
    padding: 2rem;
    max-width: 900px;
}

.menu-toggle {
    display: none;
    position: fixed;
    top: 1rem;
    left: 1rem;
    z-index: 1001;
    background-color: var(--primary-color);
    border: none;
    border-radius: 0.5rem;
    width: 2.5rem;
    height: 2.5rem;
    cursor: pointer;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.25rem;
    box-shadow: var(--shadow-md);
}

.menu-toggle span {
    width: 1.25rem;
    height: 2px;
    background-color: white;
    transition: all 0.3s;
}

/* Breadcrumb */
.breadcrumb {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.875rem;
    color: var(--text-tertiary);
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

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

.breadcrumb a:hover {
    color: var(--primary-dark);
    text-decoration: underline;
}

.breadcrumb .separator {
    color: var(--text-tertiary);
}

.breadcrumb .current {
    color: var(--text-secondary);
    font-weight: 500;
}

/* Content */
.content {
    background-color: var(--bg-primary);
}

.content h1 {
    font-size: 2.25rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 1.5rem;
    line-height: 1.2;
}

.content h2 {
    font-size: 1.75rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-top: 2rem;
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--border-color);
}

.content h3 {
    font-size: 1.375rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-top: 1.5rem;
    margin-bottom: 0.75rem;
}

.content h4 {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-top: 1.25rem;
    margin-bottom: 0.5rem;
}

.content p {
    margin-bottom: 1rem;
    color: var(--text-secondary);
}

.content ul, .content ol {
    margin-bottom: 1rem;
    padding-left: 1.5rem;
    color: var(--text-secondary);
}

.content li {
    margin-bottom: 0.5rem;
}

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

.content a:hover {
    color: var(--primary-dark);
    text-decoration: underline;
}

.content code {
    background-color: var(--bg-tertiary);
    padding: 0.125rem 0.375rem;
    border-radius: 0.25rem;
    font-family: 'Monaco', 'Courier New', monospace;
    font-size: 0.875em;
    color: var(--accent-color);
}

.content pre {
    background-color: var(--bg-tertiary);
    padding: 1rem;
    border-radius: 0.5rem;
    overflow-x: auto;
    margin-bottom: 1rem;
    border: 1px solid var(--border-color);
}

.content pre code {
    background-color: transparent;
    padding: 0;
    color: var(--text-primary);
}

.content blockquote {
    border-left: 4px solid var(--primary-color);
    padding-left: 1rem;
    margin: 1rem 0;
    color: var(--text-secondary);
    font-style: italic;
}

.content table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 1rem;
}

.content table th,
.content table td {
    padding: 0.75rem;
    border: 1px solid var(--border-color);
    text-align: left;
}

.content table th {
    background-color: var(--bg-tertiary);
    font-weight: 600;
    color: var(--text-primary);
}

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

/* Hero Section (for index page) */
.hero {
    text-align: center;
    padding: 3rem 0;
    margin-bottom: 3rem;
}

.hero h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero p {
    font-size: 1.25rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

.section-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.section-card {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 0.75rem;
    padding: 1.5rem;
    transition: all 0.3s;
    cursor: pointer;
    text-decoration: none;
    display: block;
}

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

.section-card-icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.section-card-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.section-card-description {
    font-size: 0.875rem;
    color: var(--text-tertiary);
}

/* Responsive */
@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
    }
    
    .sidebar.active {
        transform: translateX(0);
    }
    
    .main-content {
        margin-left: 0;
        padding: 1rem;
        padding-top: 4rem;
    }
    
    .menu-toggle {
        display: flex;
    }
    
    .hero h1 {
        font-size: 2rem;
    }
    
    .section-grid {
        grid-template-columns: 1fr;
    }
}

/* Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.content > * {
    animation: fadeIn 0.5s ease-out;
}

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

::-webkit-scrollbar-track {
    background: var(--bg-secondary);
}

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

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