/* ==================== CSS Variables ==================== */
:root {
    --primary-green: #10b981;
    --primary-green-hover: #059669;
    --bg-primary: #ffffff;
    --bg-secondary: #f9fafb;
    --text-primary: #111827;
    --text-secondary: #6b7280;
    --border-color: #e5e7eb;
    --code-bg: #f3f4f6;
    --shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
}

[data-theme="dark"] {
    --bg-primary: #111827;
    --bg-secondary: #1f2937;
    --text-primary: #f9fafb;
    --text-secondary: #9ca3af;
    --border-color: #374151;
    --code-bg: #1f2937;
}

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

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;
}

/* ==================== Top Navigation Bar ==================== */
.topbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 64px;
    background-color: var(--bg-primary);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
    box-shadow: var(--shadow);
}

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

.logo-link {
    display: flex;
    align-items: center;
}

.logo {
    height: 32px;
    width: auto;
}

/* Search Bar */
.search-container {
    flex: 1;
    max-width: 500px;
    position: relative;
}

.search-input {
    width: 100%;
    padding: 10px 40px 10px 16px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    background-color: var(--bg-secondary);
    color: var(--text-primary);
    font-size: 14px;
    transition: all 0.2s;
}

.search-input:focus {
    outline: none;
    border-color: var(--primary-green);
    box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.1);
}

.search-shortcut {
    position: absolute;
    right: 12px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 12px;
    color: var(--text-secondary);
    background-color: var(--code-bg);
    padding: 2px 6px;
    border-radius: 4px;
    font-family: monospace;
}

/* Top Bar Actions */
.topbar-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

.github-link {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    color: var(--text-primary);
    text-decoration: none;
    border-radius: 6px;
    transition: background-color 0.2s;
}

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

.theme-toggle {
    width: 40px;
    height: 40px;
    border: none;
    background: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 6px;
    color: var(--text-primary);
    transition: background-color 0.2s;
}

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

[data-theme="dark"] .sun-icon {
    display: none;
}

[data-theme="light"] .moon-icon,
:root:not([data-theme]) .moon-icon {
    display: none;
}

/* ==================== Home Page Styles ==================== */
.home-container {
    margin-top: 64px;
    min-height: calc(100vh - 64px);
}

.hero-section {
    text-align: center;
    padding: 80px 24px 60px;
    background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
}

.hero-title {
    font-size: 64px;
    font-weight: 800;
    margin-bottom: 16px;
    background: linear-gradient(135deg, var(--primary-green) 0%, #059669 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 24px;
    color: var(--text-secondary);
    margin-bottom: 32px;
}

.badge-container {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-bottom: 32px;
    flex-wrap: wrap;
}

.cta-buttons {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}

.btn {
    padding: 12px 32px;
    font-size: 16px;
    font-weight: 600;
    border-radius: 8px;
    text-decoration: none;
    transition: all 0.2s;
    display: inline-block;
}

.btn-primary {
    background-color: var(--primary-green);
    color: white;
    border: 2px solid var(--primary-green);
}

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

.btn-secondary {
    background-color: transparent;
    color: var(--text-primary);
    border: 2px solid var(--border-color);
}

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

/* Features Section */
.features-section {
    max-width: 1200px;
    margin: 0 auto;
    padding: 60px 24px;
}

.features-section h2 {
    text-align: center;
    font-size: 36px;
    margin-bottom: 48px;
    color: var(--text-primary);
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 24px;
}

.feature-card {
    background-color: var(--bg-secondary);
    padding: 32px;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    transition: all 0.3s;
}

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

.feature-icon {
    font-size: 48px;
    margin-bottom: 16px;
}

.feature-card h3 {
    font-size: 20px;
    margin-bottom: 12px;
    color: var(--text-primary);
}

.feature-card p {
    color: var(--text-secondary);
    font-size: 14px;
    line-height: 1.6;
}

/* Quick Example Section */
.quick-example {
    max-width: 900px;
    margin: 0 auto;
    padding: 60px 24px;
}

.quick-example h2 {
    text-align: center;
    font-size: 36px;
    margin-bottom: 32px;
}

pre {
    background-color: var(--code-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 24px;
    overflow-x: auto;
}

code {
    font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
    font-size: 14px;
    line-height: 1.6;
    color: var(--text-primary);
}

/* ==================== Documentation Layout ==================== */
.doc-container {
    margin-top: 64px;
    display: flex;
    min-height: calc(100vh - 64px);
}

.doc-content {
    flex: 1;
    max-width: 900px;
    padding: 48px 24px;
    margin: 0 auto;
}

.toc-sidebar {
    position: fixed;
    right: 0;
    top: 64px;
    width: 250px;
    height: calc(100vh - 64px);
    overflow-y: auto;
    padding: 32px 24px;
    border-left: 1px solid var(--border-color);
    background-color: var(--bg-primary);
}

.toc-title {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 16px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.toc-list {
    list-style: none;
}

.toc-item {
    margin-bottom: 8px;
}

.toc-link {
    display: block;
    padding: 6px 12px;
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 14px;
    border-radius: 4px;
    transition: all 0.2s;
}

.toc-link:hover {
    color: var(--primary-green);
    background-color: var(--bg-secondary);
}

.toc-link.active {
    color: var(--primary-green);
    background-color: var(--bg-secondary);
    font-weight: 600;
}

/* Documentation Content Styles */
.doc-content h1 {
    font-size: 48px;
    margin-bottom: 16px;
    color: var(--text-primary);
}

.doc-content h2 {
    font-size: 32px;
    margin-top: 48px;
    margin-bottom: 16px;
    padding-bottom: 8px;
    border-bottom: 2px solid var(--border-color);
    color: var(--text-primary);
}

.doc-content h3 {
    font-size: 24px;
    margin-top: 32px;
    margin-bottom: 12px;
    color: var(--text-primary);
}

.doc-content p {
    margin-bottom: 16px;
    color: var(--text-secondary);
}

.doc-content ul, .doc-content ol {
    margin-bottom: 16px;
    padding-left: 24px;
    color: var(--text-secondary);
}

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

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

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

.doc-content code:not(pre code) {
    background-color: var(--code-bg);
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 13px;
    color: var(--primary-green);
}

/* ==================== Footer ==================== */
.footer {
    background-color: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    padding: 32px 24px;
    text-align: center;
    color: var(--text-secondary);
}

.footer p {
    margin: 4px 0;
}

.footer a {
    color: var(--primary-green);
    text-decoration: none;
}

.footer a:hover {
    text-decoration: underline;
}

/* ==================== Responsive Design ==================== */
@media (max-width: 1200px) {
    .toc-sidebar {
        display: none;
    }
    
    .doc-content {
        max-width: 100%;
    }
}

@media (max-width: 768px) {
    .topbar-container {
        padding: 0 16px;
        gap: 12px;
    }
    
    .search-container {
        max-width: none;
    }
    
    .search-shortcut {
        display: none;
    }
    
    .github-link span {
        display: none;
    }
    
    .hero-title {
        font-size: 48px;
    }
    
    .hero-subtitle {
        font-size: 18px;
    }
    
    .feature-grid {
        grid-template-columns: 1fr;
    }
    
    .doc-content {
        padding: 24px 16px;
    }
    
    .doc-content h1 {
        font-size: 36px;
    }
    
    .doc-content h2 {
        font-size: 28px;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 36px;
    }
    
    .cta-buttons {
        flex-direction: column;
        align-items: stretch;
    }
    
    .btn {
        width: 100%;
    }
}

/* ==================== Utility Classes ==================== */
.highlight {
    background-color: rgba(16, 185, 129, 0.1);
    padding: 2px 4px;
    border-radius: 3px;
}

.note {
    background-color: rgba(16, 185, 129, 0.1);
    border-left: 4px solid var(--primary-green);
    padding: 16px;
    margin: 24px 0;
    border-radius: 4px;
}

.warning {
    background-color: rgba(245, 158, 11, 0.1);
    border-left: 4px solid #f59e0b;
    padding: 16px;
    margin: 24px 0;
    border-radius: 4px;
}