:root {
    --primary: #6366f1;
    --primary-dark: #4f46e5;
    --primary-light: #818cf8;
    --primary-bg: #eef2ff;
    --secondary: #0ea5e9;
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-400: #9ca3af;
    --gray-500: #6b7280;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-800: #1f2937;
    --gray-900: #111827;
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow: 0 1px 3px 0 rgb(0 0 0 / 0.1), 0 1px 2px -1px rgb(0 0 0 / 0.1);
    --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);
    --radius: 8px;
    --sidebar-width: 280px;
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    font-size: 15px;
    line-height: 1.6;
    color: var(--gray-700);
    background: var(--gray-50);
}

.docs-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 64px;
    background: white;
    border-bottom: 1px solid var(--gray-200);
    z-index: 100;
    box-shadow: var(--shadow-sm);
}

.header-content {
    max-width: 1400px;
    margin: 0 auto;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 24px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    color: var(--gray-900);
}

.logo-text {
    font-weight: 700;
    font-size: 18px;
    letter-spacing: -0.5px;
}

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

.nav-link {
    color: var(--gray-600);
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    transition: color 0.2s;
}

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

.version-badge {
    background: var(--primary-bg);
    color: var(--primary);
    padding: 4px 10px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    padding: 8px;
    cursor: pointer;
    color: var(--gray-600);
}

.docs-container {
    display: flex;
    max-width: 1400px;
    margin: 0 auto;
    padding-top: 64px;
    min-height: calc(100vh - 64px);
}

.docs-sidebar {
    width: var(--sidebar-width);
    background: white;
    border-right: 1px solid var(--gray-200);
    position: fixed;
    top: 64px;
    left: 0;
    bottom: 0;
    overflow-y: auto;
    padding: 24px 0;
}

.sidebar-header {
    display: none;
    justify-content: space-between;
    align-items: center;
    padding: 0 20px 16px;
    border-bottom: 1px solid var(--gray-200);
    margin-bottom: 16px;
}

.sidebar-title {
    font-weight: 600;
    color: var(--gray-900);
}

.sidebar-close-btn {
    background: none;
    border: none;
    cursor: pointer;
    color: var(--gray-500);
    padding: 4px;
}

.sidebar-nav { padding: 0 12px; }

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

.nav-section-title {
    display: block;
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--gray-400);
    padding: 0 12px;
    margin-bottom: 8px;
}

.sidebar-nav .nav-link {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 12px;
    border-radius: var(--radius);
    color: var(--gray-600);
    text-decoration: none;
    font-size: 14px;
    transition: all 0.2s;
}

.sidebar-nav .nav-link:hover {
    background: var(--gray-100);
    color: var(--gray-900);
}

.sidebar-nav .nav-link.active {
    background: var(--primary-bg);
    color: var(--primary);
    font-weight: 500;
}

.nav-icon {
    width: 18px;
    height: 18px;
    flex-shrink: 0;
}

.docs-main {
    flex: 1;
    margin-left: var(--sidebar-width);
    padding: 48px;
    max-width: 900px;
}

.docs-content h1 {
    font-size: 36px;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 16px;
    letter-spacing: -1px;
}

.docs-content h2 {
    font-size: 24px;
    font-weight: 600;
    color: var(--gray-900);
    margin: 48px 0 16px;
    padding-top: 24px;
    border-top: 1px solid var(--gray-200);
    letter-spacing: -0.5px;
}

.docs-content h2:first-of-type {
    margin-top: 32px;
    border-top: none;
    padding-top: 0;
}

.docs-content h3 {
    font-size: 18px;
    font-weight: 600;
    color: var(--gray-800);
    margin: 32px 0 12px;
}

.docs-content h4 {
    font-size: 15px;
    font-weight: 600;
    color: var(--gray-700);
    margin: 24px 0 8px;
}

.docs-content p {
    margin-bottom: 16px;
    color: var(--gray-600);
}

.docs-content .lead {
    font-size: 18px;
    color: var(--gray-500);
    margin-bottom: 32px;
}

.docs-content ul, .docs-content ol {
    margin: 16px 0;
    padding-left: 24px;
    color: var(--gray-600);
}

.docs-content li { margin-bottom: 8px; }

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

.docs-content a:hover { text-decoration: underline; }

.docs-content strong { color: var(--gray-800); font-weight: 600; }

.code-block {
    position: relative;
    background: var(--gray-900);
    border-radius: var(--radius);
    margin: 20px 0;
    overflow: hidden;
}

.code-block code {
    display: block;
    padding: 20px;
    overflow-x: auto;
    font-family: 'JetBrains Mono', 'Fira Code', monospace;
    font-size: 13px;
    line-height: 1.6;
    color: #e5e7eb;
}

.code-block .copy-btn {
    position: absolute;
    top: 12px;
    right: 12px;
    background: rgba(255,255,255,0.1);
    border: none;
    border-radius: 6px;
    padding: 6px 8px;
    cursor: pointer;
    color: var(--gray-400);
    transition: all 0.2s;
}

.code-block .copy-btn:hover {
    background: rgba(255,255,255,0.2);
    color: white;
}

.note, .tip, .warning {
    padding: 16px 20px;
    border-radius: var(--radius);
    margin: 20px 0;
    display: flex;
    gap: 12px;
}

.note {
    background: var(--primary-bg);
    border-left: 4px solid var(--primary);
}

.tip {
    background: #ecfdf5;
    border-left: 4px solid var(--success);
}

.warning {
    background: #fffbeb;
    border-left: 4px solid var(--warning);
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
    margin: 24px 0;
}

.feature-card {
    background: white;
    border: 1px solid var(--gray-200);
    border-radius: var(--radius);
    padding: 24px;
    transition: all 0.2s;
}

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

.feature-card h4 {
    display: flex;
    align-items: center;
    gap: 10px;
    margin: 0 0 12px;
    color: var(--gray-800);
}

.feature-card h4 svg {
    width: 20px;
    height: 20px;
    color: var(--primary);
}

.feature-card p {
    font-size: 14px;
    color: var(--gray-500);
    margin: 0;
}

.api-endpoint {
    background: white;
    border: 1px solid var(--gray-200);
    border-radius: var(--radius);
    margin: 16px 0;
    overflow: hidden;
}

.api-endpoint-header {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    background: var(--gray-50);
    border-bottom: 1px solid var(--gray-200);
}

.method {
    padding: 4px 10px;
    border-radius: 4px;
    font-size: 12px;
    font-weight: 700;
    text-transform: uppercase;
}

.method-get { background: #dbeafe; color: #1d4ed8; }
.method-post { background: #dcfce7; color: #15803d; }
.method-put { background: #fef3c7; color: #b45309; }
.method-delete { background: #fee2e2; color: #dc2626; }

.endpoint-path {
    font-family: 'JetBrains Mono', monospace;
    font-size: 13px;
    color: var(--gray-700);
}

.api-endpoint-body { padding: 16px; }

.table-wrapper {
    overflow-x: auto;
    margin: 20px 0;
}

table {
    width: 100%;
    border-collapse: collapse;
    font-size: 14px;
}

th, td {
    text-align: left;
    padding: 12px 16px;
    border-bottom: 1px solid var(--gray-200);
}

th {
    background: var(--gray-50);
    font-weight: 600;
    color: var(--gray-700);
}

tr:hover { background: var(--gray-50); }

.badge {
    display: inline-block;
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 12px;
    font-weight: 500;
}

.badge-new { background: #dcfce7; color: #15803d; }
.badge-pro { background: #fef3c7; color: #b45309; }
.badge-beta { background: #e0e7ff; color: #4338ca; }

.docs-footer {
    background: var(--gray-900);
    color: var(--gray-400);
    margin-left: var(--sidebar-width);
    margin-top: 48px;
}

.footer-content {
    max-width: 1400px;
    margin: 0 auto;
    padding: 48px 24px;
    display: grid;
    grid-template-columns: 1fr 3fr;
    gap: 48px;
}

.footer-brand .footer-logo {
    font-size: 18px;
    font-weight: 700;
    color: white;
    display: block;
    margin-bottom: 8px;
}

.footer-tagline {
    font-size: 14px;
    color: var(--gray-500);
    max-width: 280px;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 32px;
}

.footer-section h4 {
    font-size: 13px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--gray-300);
    margin-bottom: 16px;
}

.footer-section a {
    display: block;
    color: var(--gray-500);
    text-decoration: none;
    font-size: 14px;
    margin-bottom: 8px;
    transition: color 0.2s;
}

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

.footer-bottom {
    border-top: 1px solid var(--gray-800);
    max-width: 1400px;
    margin: 0 auto;
    padding: 24px;
    display: flex;
    justify-content: space-between;
    font-size: 13px;
    color: var(--gray-500);
}

@media (max-width: 1024px) {
    .docs-sidebar {
        transform: translateX(-100%);
        transition: transform 0.3s ease;
        z-index: 99;
    }
    
    .docs-sidebar.open {
        transform: translateX(0);
    }
    
    .docs-main {
        margin-left: 0;
        padding: 32px 24px;
    }
    
    .docs-footer {
        margin-left: 0;
    }
    
    .mobile-menu-btn { display: block; }
    
    .sidebar-header { display: flex; }
}

@media (max-width: 768px) {
    .docs-content h1 { font-size: 28px; }
    .docs-content h2 { font-size: 20px; }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 32px;
    }
    
    .footer-links {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: 8px;
        text-align: center;
    }
    
    .header-nav { display: none; }
}

@media (max-width: 480px) {
    .docs-main { padding: 24px 16px; }
    .feature-grid { grid-template-columns: 1fr; }
    .footer-links { grid-template-columns: 1fr; }
}