:root {
    --bg-primary: #07090e;
    --bg-secondary: #0d111a;
    --bg-card: #121824;
    --bg-hover: #1b2436;
    
    --text-primary: #f3f4f6;
    --text-secondary: #9ca3af;
    --text-muted: #6b7280;
    
    --accent-cyan: #06b6d4;
    --accent-mint: #10b981;
    --accent-gold: #f59e0b;
    --accent-red: #ef4444;
    
    --border-color: #1e293b;
    --border-hover: #334155;
    
    --sidebar-width: 280px;
    --header-height: 70px;
    
    --font-ui: 'Outfit', 'Inter', -apple-system, sans-serif;
    --font-serif: 'Crimson Pro', 'Georgia', serif;
    --font-mono: 'JetBrains Mono', monospace;
    
    --transition-fast: 0.15s ease;
    --transition-normal: 0.25s ease;
}

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

body {
    background-color: var(--bg-primary);
    color: var(--text-primary);
    font-family: var(--font-ui);
    min-height: 100vh;
    display: flex;
    overflow-x: hidden;
}

/* Sidebar Layout */
.sidebar {
    width: var(--sidebar-width);
    background-color: var(--bg-secondary);
    border-right: 1px solid var(--border-color);
    height: 100vh;
    position: fixed;
    top: 0;
    left: 0;
    z-index: 100;
    display: flex;
    flex-direction: column;
    transition: transform var(--transition-normal);
}

.sidebar-header {
    height: var(--header-height);
    padding: 0 24px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.site-title {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    color: var(--text-primary);
    font-weight: 600;
    font-size: 18px;
    letter-spacing: 0.5px;
}

.site-logo svg {
    display: block;
    transition: transform var(--transition-normal);
}

.site-title:hover .site-logo svg {
    transform: rotate(45deg);
}

.sidebar-close {
    display: none;
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
}

.sidebar-content {
    flex-grow: 1;
    overflow-y: auto;
    padding: 24px;
}

.nav-section-title {
    font-family: var(--font-mono);
    font-size: 11px;
    text-transform: uppercase;
    color: var(--text-muted);
    letter-spacing: 1.5px;
    margin: 24px 0 12px 0;
}

.nav-section-title:first-child {
    margin-top: 0;
}

.sidebar-nav {
    list-style: none;
}

.sidebar-nav li {
    margin-bottom: 6px;
}

.sidebar-nav a {
    display: block;
    padding: 10px 14px;
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 14px;
    font-weight: 400;
    border-radius: 6px;
    transition: all var(--transition-fast);
}

.sidebar-nav a:hover {
    background-color: var(--bg-hover);
    color: var(--text-primary);
    padding-left: 18px;
}

.sidebar-nav a.active {
    background-color: var(--bg-card);
    color: var(--accent-cyan);
    font-weight: 500;
    border-left: 3px solid var(--accent-cyan);
    border-radius: 0 6px 6px 0;
}

/* Main Layout */
.main-layout {
    flex-grow: 1;
    margin-left: var(--sidebar-width);
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

header.site-header {
    height: var(--header-height);
    background-color: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    padding: 0 40px;
    display: flex;
    align-items: center;
    position: sticky;
    top: 0;
    z-index: 90;
}

.hamburger {
    display: none;
    background: none;
    border: none;
    color: var(--text-primary);
    cursor: pointer;
    margin-right: 20px;
}

.header-search {
    display: flex;
    align-items: center;
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    padding: 8px 16px;
    border-radius: 8px;
    width: 320px;
    max-width: 100%;
}

.search-input {
    background: none;
    border: none;
    color: var(--text-primary);
    font-family: var(--font-ui);
    font-size: 14px;
    width: 100%;
    outline: none;
}

.search-input::placeholder {
    color: var(--text-muted);
}

.auth-box {
    margin-left: auto;
}

.btn-auth-nav {
    background-color: transparent;
    border: 1px solid var(--accent-cyan);
    color: var(--accent-cyan);
    font-family: var(--font-ui);
    font-size: 13px;
    font-weight: 500;
    padding: 8px 16px;
    border-radius: 6px;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.btn-auth-nav:hover {
    background-color: var(--accent-cyan);
    color: var(--bg-primary);
    box-shadow: 0 0 15px rgba(6, 182, 212, 0.4);
}

/* Page Container */
.page-container {
    padding: 40px;
    max-width: 1100px;
    margin: 0 auto;
    width: 100%;
}

/* Article Styling */
.wiki-article {
    margin-bottom: 60px;
}

.article-header {
    margin-bottom: 40px;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 24px;
}

.article-badge {
    display: inline-block;
    background-color: rgba(6, 182, 212, 0.1);
    color: var(--accent-cyan);
    font-family: var(--font-mono);
    font-size: 12px;
    padding: 4px 10px;
    border-radius: 4px;
    margin-bottom: 12px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.article-title {
    font-size: 36px;
    font-weight: 700;
    letter-spacing: -0.5px;
    color: var(--text-primary);
    margin-bottom: 12px;
}

.article-subtitle {
    font-size: 18px;
    color: var(--text-secondary);
    font-weight: 300;
    line-height: 1.5;
}

.article-content {
    font-family: var(--font-serif);
    font-size: 19px;
    line-height: 1.7;
    color: #e5e7eb;
}

.article-content h1, 
.article-content h2, 
.article-content h3 {
    font-family: var(--font-ui);
    color: var(--text-primary);
    font-weight: 600;
    margin: 40px 0 16px 0;
}

.article-content h2 {
    font-size: 24px;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 8px;
}

.article-content p {
    margin-bottom: 24px;
}

.article-content ul, 
.article-content ol {
    margin-bottom: 24px;
    padding-left: 24px;
}

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

.article-content code {
    font-family: var(--font-mono);
    font-size: 15px;
    background-color: var(--bg-card);
    padding: 3px 6px;
    border-radius: 4px;
    border: 1px solid var(--border-color);
}

/* Custom Visual Elements */
.grid-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 24px;
    margin: 40px 0;
}

.dashboard-card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 24px;
    transition: all var(--transition-normal);
}

.dashboard-card:hover {
    border-color: var(--border-hover);
    transform: translateY(-4px);
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.2);
}

.card-icon {
    width: 48px;
    height: 48px;
    background-color: rgba(6, 182, 212, 0.05);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent-cyan);
    margin-bottom: 16px;
}

.card-title {
    font-family: var(--font-ui);
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.card-desc {
    font-family: var(--font-ui);
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.5;
}

/* Metric Display Blocks */
.metric-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
    margin: 24px 0;
    font-family: var(--font-ui);
}

.metric-box {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 16px;
    text-align: left;
}

.metric-label {
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-muted);
    margin-bottom: 8px;
}

.metric-val {
    font-size: 24px;
    font-weight: 700;
    color: var(--accent-mint);
    font-family: var(--font-mono);
}

.metric-val.amber {
    color: var(--accent-gold);
}

.metric-val.cyan {
    color: var(--accent-cyan);
}

.metric-val.red {
    color: var(--accent-red);
}

/* Data Table Styles */
.data-table-container {
    overflow-x: auto;
    margin: 32px 0;
    border: 1px solid var(--border-color);
    border-radius: 8px;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    font-family: var(--font-ui);
    font-size: 14px;
    text-align: left;
}

.data-table th {
    background-color: var(--bg-secondary);
    color: var(--text-secondary);
    font-weight: 500;
    padding: 14px 20px;
    border-bottom: 1px solid var(--border-color);
}

.data-table td {
    padding: 14px 20px;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-primary);
}

.data-table tr:last-child td {
    border-bottom: none;
}

.data-table tr:hover td {
    background-color: var(--bg-hover);
}

/* Info Callout Blocks */
.info-callout {
    background: linear-gradient(135deg, rgba(6, 182, 212, 0.05) 0%, rgba(16, 185, 129, 0.02) 100%);
    border-left: 4px solid var(--accent-cyan);
    border-radius: 0 8px 8px 0;
    padding: 20px 24px;
    margin: 32px 0;
    font-family: var(--font-ui);
}

.info-callout p {
    margin-bottom: 0;
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Footer styling */
.site-footer {
    background-color: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    padding: 40px 0;
    margin-top: auto;
}

.footer-grid {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 24px;
}

.footer-brand {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.footer-desc {
    font-size: 13px;
    color: var(--text-muted);
    max-width: 480px;
    line-height: 1.5;
}

.footer-meta {
    font-size: 12px;
    color: var(--text-muted);
    text-align: right;
}

.footer-meta p {
    margin-bottom: 6px;
}

.status-indicator {
    display: inline-flex;
    align-items: center;
    color: var(--accent-mint);
    font-weight: 600;
}

.status-indicator::before {
    content: "";
    display: inline-block;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background-color: var(--accent-mint);
    margin-right: 6px;
    box-shadow: 0 0 8px var(--accent-mint);
}

/* Mobile Responsiveness */
@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
    }
    .sidebar.open {
        transform: translateX(0);
    }
    .sidebar-close {
        display: block;
    }
    .main-layout {
        margin-left: 0;
    }
    .hamburger {
        display: block;
    }
    header.site-header {
        padding: 0 20px;
    }
    .header-search {
        display: none; /* Hide search on mobile header to save space */
    }
    .page-container {
        padding: 24px 20px;
    }
    .article-title {
        font-size: 28px;
    }
    .footer-grid {
        flex-direction: column;
        align-items: flex-start;
    }
    .footer-meta {
        text-align: left;
    }
}