:root {
    --bg: #0d1117;
    --fg: #c9d1d9;
    --fg-muted: #8b949e;
    --accent: #58a6ff;
    --accent-hover: #79c0ff;
    --code-bg: #161b22;
    --border: #30363d;
    --success: #3fb950;
    --warning: #d29922;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Helvetica, Arial, sans-serif;
    background: var(--bg);
    color: var(--fg);
    line-height: 1.6;
    min-height: 100vh;
}

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

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

code {
    font-family: 'SF Mono', Consolas, 'Liberation Mono', Menlo, monospace;
    background: var(--code-bg);
    padding: 0.2em 0.4em;
    border-radius: 4px;
    font-size: 0.9em;
}

pre {
    background: var(--code-bg);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 1rem;
    overflow-x: auto;
    margin: 1rem 0;
}

pre code {
    background: none;
    padding: 0;
    font-size: 0.875rem;
}

/* Navigation */
nav {
    background: var(--code-bg);
    border-bottom: 1px solid var(--border);
    padding: 1rem 2rem;
    position: sticky;
    top: 0;
    z-index: 100;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--fg);
}

.nav-logo:hover {
    color: var(--accent);
}

.nav-links {
    display: flex;
    gap: 1.5rem;
    list-style: none;
}

.nav-links a {
    color: var(--fg-muted);
    font-size: 0.9rem;
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--accent);
}

/* Main content */
main {
    max-width: 900px;
    margin: 0 auto;
    padding: 3rem 2rem;
}

h1 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, var(--accent), #a371f7);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

h2 {
    font-size: 1.75rem;
    margin: 2.5rem 0 1rem;
    color: var(--fg);
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--border);
}

h3 {
    font-size: 1.25rem;
    margin: 1.5rem 0 0.75rem;
    color: var(--accent);
}

p {
    margin-bottom: 1rem;
    color: var(--fg-muted);
}

ul, ol {
    margin: 1rem 0;
    padding-left: 1.5rem;
}

li {
    margin-bottom: 0.5rem;
    color: var(--fg-muted);
}

/* Tables */
table {
    width: 100%;
    border-collapse: collapse;
    margin: 1rem 0;
}

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

th {
    color: var(--fg);
    font-weight: 600;
    background: var(--code-bg);
}

td {
    color: var(--fg-muted);
}

td code {
    color: var(--accent);
}

/* Cards */
.card {
    background: var(--code-bg);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 1.5rem;
    margin: 1rem 0;
}

.card h3 {
    margin-top: 0;
}

.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1rem;
    margin: 1.5rem 0;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border-radius: 6px;
    font-weight: 600;
    transition: all 0.2s;
    cursor: pointer;
    border: none;
}

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

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

/* Badges */
.badge {
    display: inline-block;
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 600;
}

.badge-green {
    background: rgba(63, 185, 80, 0.2);
    color: var(--success);
}

.badge-blue {
    background: rgba(88, 166, 255, 0.2);
    color: var(--accent);
}

/* Footer */
footer {
    border-top: 1px solid var(--border);
    padding: 2rem;
    text-align: center;
    color: var(--fg-muted);
    font-size: 0.875rem;
}

/* Breadcrumb */
.breadcrumb {
    color: var(--fg-muted);
    font-size: 0.875rem;
    margin-bottom: 1rem;
}

.breadcrumb a {
    color: var(--fg-muted);
}

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

/* Alert boxes */
.alert {
    padding: 1rem;
    border-radius: 6px;
    margin: 1rem 0;
}

.alert-info {
    background: rgba(88, 166, 255, 0.1);
    border: 1px solid rgba(88, 166, 255, 0.3);
}

.alert-warning {
    background: rgba(210, 153, 34, 0.1);
    border: 1px solid rgba(210, 153, 34, 0.3);
}

/* Responsive */
@media (max-width: 768px) {
    .nav-container {
        flex-direction: column;
        gap: 1rem;
    }

    .nav-links {
        flex-wrap: wrap;
        justify-content: center;
    }

    h1 {
        font-size: 2rem;
    }

    main {
        padding: 2rem 1rem;
    }
}