:root {
    --bg: #07080d;
    --bg-elevated: #0f1118;
    --bg-card: rgba(18, 20, 30, 0.72);
    --bg-card-hover: rgba(24, 27, 40, 0.88);
    --border: rgba(255, 255, 255, 0.08);
    --border-hover: rgba(255, 255, 255, 0.16);
    --ink: #f4f4f7;
    --muted: #9ca3b8;
    --muted-soft: #6b7288;
    --accent: #c9a962;
    --accent-light: #e8d5a3;
    --accent-glow: rgba(201, 169, 98, 0.25);
    --accent-2: #7c6cf0;
    --accent-2-glow: rgba(124, 108, 240, 0.2);
    --success: #4ade80;
    --success-glow: rgba(74, 222, 128, 0.15);
    --radius: 20px;
    --radius-sm: 12px;
    --shadow: 0 24px 80px rgba(0, 0, 0, 0.45);
    --shadow-sm: 0 8px 32px rgba(0, 0, 0, 0.3);
    --font-sans: "DM Sans", system-ui, sans-serif;
    --font-display: "Instrument Serif", Georgia, serif;
    --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    font-family: var(--font-sans);
    color: var(--ink);
    background: var(--bg);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body::before {
    content: "";
    position: fixed;
    inset: 0;
    background:
        radial-gradient(ellipse 80% 50% at 50% -20%, rgba(124, 108, 240, 0.15), transparent),
        radial-gradient(ellipse 60% 40% at 100% 0%, rgba(201, 169, 98, 0.08), transparent),
        radial-gradient(ellipse 50% 30% at 0% 100%, rgba(124, 108, 240, 0.06), transparent);
    pointer-events: none;
    z-index: 0;
}

img {
    max-width: 100%;
    display: block;
}

a {
    color: inherit;
    text-decoration: none;
}

.container {
    width: min(1120px, calc(100% - 40px));
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

/* ── Top Nav ── */

.top-nav {
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(20px) saturate(1.4);
    -webkit-backdrop-filter: blur(20px) saturate(1.4);
    background: rgba(7, 8, 13, 0.75);
    border-bottom: 1px solid var(--border);
}

.top-nav .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 0;
    gap: 20px;
}

.brand {
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 600;
    font-size: 0.95rem;
    letter-spacing: 0.02em;
}

.brand-mark {
    width: 36px;
    height: 36px;
    border-radius: 10px;
    background: linear-gradient(135deg, var(--accent), var(--accent-2));
    display: grid;
    place-items: center;
    font-family: var(--font-display);
    font-size: 1.1rem;
    color: #fff;
    font-weight: 400;
}

.nav-meta {
    display: flex;
    align-items: center;
    gap: 12px;
}

/* ── Header / Hero ── */

.site-header {
    padding: 72px 0 48px;
}

.site-header-compact {
    padding: 32px 0 40px;
}

.header-top {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    margin-bottom: 24px;
}

.badge {
    display: inline-flex;
    align-items: center;
    padding: 6px 14px;
    border: 1px solid var(--border);
    border-radius: 999px;
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    background: rgba(255, 255, 255, 0.04);
    color: var(--muted);
}

.badge-dark {
    background: rgba(201, 169, 98, 0.12);
    border-color: rgba(201, 169, 98, 0.25);
    color: var(--accent-light);
}

.badge-green {
    background: rgba(74, 222, 128, 0.1);
    border-color: rgba(74, 222, 128, 0.2);
    color: var(--success);
}

h1, h2, h3 {
    line-height: 1.15;
    margin: 0 0 16px;
    font-weight: 400;
}

h1 {
    font-family: var(--font-display);
    font-size: clamp(2.4rem, 6vw, 4rem);
    letter-spacing: -0.02em;
    background: linear-gradient(135deg, #fff 30%, var(--accent-light) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

h2 {
    font-family: var(--font-display);
    font-size: clamp(1.6rem, 3vw, 2.2rem);
    color: var(--ink);
    letter-spacing: -0.01em;
}

.lead {
    max-width: 640px;
    font-size: 1.1rem;
    color: var(--muted);
    margin: 0;
    line-height: 1.75;
}

.back-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 28px;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--muted);
    transition: color var(--transition);
}

.back-link:hover {
    color: var(--accent-light);
}

.back-link::before {
    content: "←";
    font-size: 1.1em;
}

/* ── Stats Row ── */

.stats-row {
    display: flex;
    gap: 32px;
    margin-top: 40px;
    padding-top: 32px;
    border-top: 1px solid var(--border);
}

.stat {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.stat-value {
    font-family: var(--font-display);
    font-size: 2rem;
    color: var(--accent-light);
    line-height: 1;
}

.stat-label {
    font-size: 0.8rem;
    color: var(--muted-soft);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    font-weight: 500;
}

/* ── Categories ── */

.category-section {
    margin: 56px 0 72px;
}

.category-header {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 28px;
}

.category-header h2 {
    margin: 0;
    white-space: nowrap;
}

.category-line {
    flex: 1;
    height: 1px;
    background: linear-gradient(90deg, var(--border), transparent);
}

.category-count {
    font-size: 0.8rem;
    color: var(--muted-soft);
    font-weight: 500;
    white-space: nowrap;
}

/* ── Module Cards ── */

.module-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 20px;
}

.module-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    backdrop-filter: blur(12px);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transition: border-color var(--transition), background var(--transition), transform var(--transition), box-shadow var(--transition);
    position: relative;
}

.module-card::before {
    content: "";
    position: absolute;
    inset: 0;
    border-radius: inherit;
    background: linear-gradient(135deg, rgba(201, 169, 98, 0.06), transparent 60%);
    opacity: 0;
    transition: opacity var(--transition);
    pointer-events: none;
}

.module-card:hover {
    border-color: var(--border-hover);
    background: var(--bg-card-hover);
    transform: translateY(-3px);
    box-shadow: var(--shadow-sm);
}

.module-card:hover::before {
    opacity: 1;
}

.module-card-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    margin-bottom: 8px;
}

.module-badge {
    display: inline-flex;
    padding: 4px 10px;
    background: rgba(124, 108, 240, 0.12);
    border: 1px solid rgba(124, 108, 240, 0.2);
    border-radius: 999px;
    font-size: 10px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: #b4a8ff;
}

.module-card-body {
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: 12px;
    flex: 1;
    position: relative;
    z-index: 1;
}

.module-number {
    font-size: 11px;
    font-weight: 600;
    color: var(--muted-soft);
    letter-spacing: 0.08em;
}

.module-card h3 {
    font-family: var(--font-display);
    font-size: 1.4rem;
    font-weight: 400;
    color: var(--ink);
    letter-spacing: -0.01em;
}

.module-card p {
    margin: 0;
    color: var(--muted);
    font-size: 0.92rem;
    flex: 1;
    line-height: 1.65;
}

.module-actions,
.header-actions {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    margin-top: 4px;
}

/* ── Buttons ── */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 11px 20px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    font-family: var(--font-sans);
    font-size: 0.875rem;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    transition: all var(--transition);
    background: rgba(255, 255, 255, 0.04);
    color: var(--ink);
    letter-spacing: 0.01em;
}

.btn:hover {
    border-color: var(--border-hover);
    background: rgba(255, 255, 255, 0.08);
    transform: translateY(-1px);
}

.btn-primary {
    background: linear-gradient(135deg, rgba(124, 108, 240, 0.25), rgba(124, 108, 240, 0.1));
    border-color: rgba(124, 108, 240, 0.35);
    color: #d4ccff;
}

.btn-primary:hover {
    background: linear-gradient(135deg, rgba(124, 108, 240, 0.4), rgba(124, 108, 240, 0.2));
    border-color: rgba(124, 108, 240, 0.5);
    box-shadow: 0 8px 24px var(--accent-2-glow);
}

.btn-install {
    background: linear-gradient(135deg, rgba(201, 169, 98, 0.25), rgba(201, 169, 98, 0.08));
    border-color: rgba(201, 169, 98, 0.35);
    color: var(--accent-light);
}

.btn-install:hover {
    background: linear-gradient(135deg, rgba(201, 169, 98, 0.4), rgba(201, 169, 98, 0.15));
    border-color: rgba(201, 169, 98, 0.55);
    box-shadow: 0 8px 24px var(--accent-glow);
}

.btn-large {
    padding: 14px 28px;
    font-size: 0.95rem;
}

/* ── Content Panels ── */

.content-panel,
.install-banner {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    backdrop-filter: blur(12px);
}

.install-banner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    padding: 28px 32px;
    margin-bottom: 24px;
    background: linear-gradient(135deg, rgba(201, 169, 98, 0.08), rgba(124, 108, 240, 0.06));
    border-color: rgba(201, 169, 98, 0.15);
    position: relative;
    overflow: hidden;
}

.install-banner::before {
    content: "";
    position: absolute;
    top: -50%;
    right: -10%;
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, var(--accent-glow), transparent 70%);
    pointer-events: none;
}

.install-banner > * {
    position: relative;
    z-index: 1;
}

.install-banner h2 {
    margin-bottom: 8px;
    font-size: 1.3rem;
    font-family: var(--font-display);
}

.install-banner p {
    margin: 0;
    color: var(--muted);
    font-size: 0.92rem;
    max-width: 520px;
}

.content-panel {
    padding: 40px 48px;
    margin-bottom: 28px;
}

/* ── Markdown Body ── */

.markdown-body h1,
.markdown-body h2,
.markdown-body h3,
.markdown-body h4 {
    margin-top: 2em;
    font-family: var(--font-display);
    font-weight: 400;
    color: var(--ink);
    letter-spacing: -0.01em;
}

.markdown-body h1 {
    font-size: 2rem;
    background: none;
    -webkit-text-fill-color: var(--ink);
}

.markdown-body h2 {
    font-size: 1.5rem;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border);
}

.markdown-body h3 {
    font-size: 1.2rem;
    color: var(--accent-light);
}

.markdown-body h1:first-child,
.markdown-body h2:first-child,
.markdown-body h3:first-child {
    margin-top: 0;
}

.markdown-body p,
.markdown-body ul,
.markdown-body ol,
.markdown-body blockquote,
.markdown-body pre,
.markdown-body .table-wrap {
    margin: 0 0 1.2rem;
    color: var(--muted);
}

.markdown-body strong {
    color: var(--ink);
    font-weight: 600;
}

.markdown-body ul,
.markdown-body ol {
    padding-left: 1.4rem;
}

.markdown-body li {
    margin-bottom: 0.4rem;
}

.markdown-body blockquote {
    border-left: 3px solid var(--accent);
    padding: 16px 20px;
    background: rgba(201, 169, 98, 0.06);
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    font-weight: 500;
    color: var(--accent-light);
    margin: 1.5rem 0;
}

.markdown-body pre {
    background: rgba(0, 0, 0, 0.4);
    color: #d4d4e8;
    border-radius: var(--radius-sm);
    padding: 20px 24px;
    overflow: auto;
    border: 1px solid var(--border);
    font-size: 0.85rem;
    line-height: 1.6;
}

.markdown-body code {
    font-family: "JetBrains Mono", ui-monospace, monospace;
    font-size: 0.88em;
}

.markdown-body p code,
.markdown-body li code,
.markdown-body td code,
.markdown-body th code {
    background: rgba(255, 255, 255, 0.06);
    padding: 2px 8px;
    border-radius: 6px;
    color: var(--accent-light);
    border: 1px solid var(--border);
}

.markdown-body hr {
    border: none;
    height: 1px;
    background: var(--border);
    margin: 2.5rem 0;
}

.table-wrap {
    overflow-x: auto;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border);
    margin: 1.5rem 0;
}

.markdown-body table {
    width: 100%;
    border-collapse: collapse;
    min-width: 480px;
    font-size: 0.9rem;
}

.markdown-body th,
.markdown-body td {
    border-bottom: 1px solid var(--border);
    padding: 12px 16px;
    text-align: left;
    vertical-align: top;
}

.markdown-body tr:last-child td {
    border-bottom: none;
}

.markdown-body th {
    background: rgba(255, 255, 255, 0.04);
    color: var(--ink);
    font-weight: 600;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.markdown-body td {
    color: var(--muted);
}

/* ── Module Nav ── */

.module-nav {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-bottom: 48px;
}

.nav-card {
    display: flex;
    flex-direction: column;
    gap: 6px;
    padding: 20px 24px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    text-decoration: none;
    transition: all var(--transition);
}

.nav-card:hover {
    border-color: var(--border-hover);
    background: var(--bg-card-hover);
    transform: translateY(-2px);
}

.nav-card span {
    color: var(--muted-soft);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    font-weight: 600;
}

.nav-card strong {
    font-family: var(--font-display);
    font-size: 1.1rem;
    font-weight: 400;
    color: var(--ink);
}

.nav-card-next {
    text-align: right;
}

/* ── Footer ── */

.site-footer {
    padding: 48px 0 56px;
    border-top: 1px solid var(--border);
    margin-top: 32px;
}

.site-footer p {
    margin: 0;
    color: var(--muted-soft);
    font-size: 0.875rem;
    text-align: center;
}

/* ── Responsive ── */

@media (max-width: 760px) {
    .stats-row {
        gap: 24px;
    }

    .install-banner,
    .module-nav {
        grid-template-columns: 1fr;
    }

    .install-banner {
        flex-direction: column;
        align-items: stretch;
        padding: 24px;
    }

    .nav-card-next {
        text-align: left;
    }

    .content-panel {
        padding: 24px 20px;
    }

    .top-nav .container {
        padding: 12px 0;
    }

    .category-header {
        flex-wrap: wrap;
    }

    .category-line {
        display: none;
    }
}