:root {
    --mls-bg: #0a0a0f;
    --mls-bg-2: #11111a;
    --mls-fg: #e4e4e7;
    --mls-muted: #6b7280;
    --mls-dim: #3f3f52;
    --mls-indigo: #818cf8;
    --mls-violet: #a78bfa;
    --mls-cyan: #22d3ee;
    --mls-border: rgba(129, 140, 248, 0.18);
    --mls-border-2: rgba(129, 140, 248, 0.08);
    --mls-mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
    --mls-serif: 'Lora', Georgia, serif;
}

body.mls-body {
    background: var(--mls-bg);
    color: var(--mls-fg);
    font-family: var(--mls-mono);
    font-size: 16px;
    line-height: 1.7;
    background-image:
        radial-gradient(circle at 15% 10%, rgba(167, 139, 250, 0.05) 0%, transparent 35%),
        radial-gradient(circle at 85% 80%, rgba(34, 211, 238, 0.04) 0%, transparent 40%),
        linear-gradient(rgba(129, 140, 248, 0.02) 1px, transparent 1px),
        linear-gradient(90deg, rgba(129, 140, 248, 0.02) 1px, transparent 1px);
    background-size: 100% 100%, 100% 100%, 32px 32px, 32px 32px;
    background-attachment: fixed;
}

.mls-wrap {
    max-width: 1040px;
    margin: 0 auto;
    padding: 48px 24px 120px;
}

.mls-back {
    color: var(--mls-muted);
    text-decoration: none;
    font-size: 12px;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    display: inline-block;
    transition: color .15s;
}
.mls-back:hover { color: var(--mls-indigo); }

/* ── Hero ───────────────────────────────────────────────────────── */
.mls-hero {
    margin: 40px 0 48px;
    border-left: 2px solid var(--mls-indigo);
    padding: 6px 0 6px 26px;
    position: relative;
}
.mls-hero::before {
    content: '';
    position: absolute;
    left: -7px;
    top: 14px;
    width: 12px;
    height: 12px;
    background: var(--mls-indigo);
    border-radius: 50%;
    box-shadow: 0 0 18px rgba(129, 140, 248, 0.7);
}
.mls-hero-eyebrow {
    color: var(--mls-indigo);
    font-size: 13px;
    letter-spacing: 0.22em;
    text-transform: uppercase;
    margin-bottom: 14px;
    text-shadow: 0 0 10px rgba(129, 140, 248, 0.35);
}
.mls-hero-title {
    font-size: clamp(34px, 6vw, 56px);
    font-weight: 600;
    letter-spacing: -0.03em;
    margin: 0 0 18px;
    color: #fff;
    font-family: var(--mls-mono);
}
.mls-hero-title::before {
    content: '~/';
    color: var(--mls-muted);
    font-weight: 400;
}
.mls-hero-tagline {
    color: var(--mls-muted);
    max-width: 66ch;
    font-size: 15px;
    line-height: 1.8;
}
.mls-hero-tagline strong { color: var(--mls-violet); font-weight: 600; }

/* ── Ratchet tree ASCII ─────────────────────────────────────────── */
.mls-tree {
    margin: 56px 0 48px;
    padding: 32px 32px 28px;
    border: 1px solid var(--mls-border);
    background: var(--mls-bg-2);
    position: relative;
}
.mls-tree::before {
    content: 'mls.d · ratchet-tree(8)';
    position: absolute;
    top: -10px;
    left: 18px;
    padding: 2px 10px;
    background: var(--mls-bg);
    color: var(--mls-indigo);
    font-size: 11px;
    letter-spacing: 0.18em;
    text-transform: uppercase;
}
.mls-tree pre {
    margin: 0;
    color: var(--mls-indigo);
    font-size: 14.5px;
    line-height: 1.55;
    text-shadow: 0 0 6px rgba(129, 140, 248, 0.3);
    white-space: pre;
    font-family: var(--mls-mono);
    letter-spacing: 0.5px;
    overflow-x: auto;
}
.mls-tree .dim { color: var(--mls-dim); text-shadow: none; }
.mls-tree .leaf { color: var(--mls-cyan); text-shadow: 0 0 6px rgba(34, 211, 238, 0.3); }
.mls-tree .root { color: var(--mls-violet); text-shadow: 0 0 8px rgba(167, 139, 250, 0.5); }

/* ── Stats ──────────────────────────────────────────────────────── */
.mls-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: 1px;
    background: var(--mls-border);
    border: 1px solid var(--mls-border);
    margin-bottom: 56px;
}
.mls-stat {
    background: var(--mls-bg);
    padding: 18px 22px;
}
.mls-stat-label {
    font-size: 12px;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--mls-muted);
}
.mls-stat-value {
    font-size: 26px;
    color: var(--mls-indigo);
    margin-top: 6px;
    font-variant-numeric: tabular-nums;
    text-shadow: 0 0 10px rgba(129, 140, 248, 0.3);
}

/* ── Chapter list ───────────────────────────────────────────────── */
.mls-toc {
    font-size: 15px;
}
.mls-toc-root {
    color: var(--mls-muted);
    font-size: 13px;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    margin-bottom: 14px;
}
.mls-toc-root.dim {
    color: #52525b;
    text-transform: none;
    letter-spacing: 0;
    margin-bottom: 22px;
}

.mls-section {
    margin-bottom: 32px;
}
.mls-section-head {
    color: var(--mls-cyan);
    margin-bottom: 10px;
    font-size: 14px;
}
.mls-section-head .dim { color: var(--mls-dim); }
.mls-section-head .count { color: var(--mls-muted); font-size: 12px; margin-left: 10px; }

.mls-row {
    display: grid;
    grid-template-columns: 64px 48px 1fr;
    gap: 18px;
    padding: 10px 12px 10px 0;
    align-items: baseline;
    color: var(--mls-fg);
    text-decoration: none;
    border-left: 2px solid transparent;
    margin-left: -2px;
    transition: background .15s, border-color .15s;
}
.mls-row:hover {
    background: rgba(129, 140, 248, 0.06);
    border-left-color: var(--mls-indigo);
}
.mls-row:hover .mls-row-title { color: var(--mls-indigo); }

.mls-row-branch {
    color: var(--mls-dim);
    user-select: none;
    white-space: pre;
    font-size: 13px;
}
.mls-row-idx {
    color: var(--mls-muted);
    font-size: 12px;
    font-variant-numeric: tabular-nums;
}
.mls-row-title {
    color: var(--mls-fg);
    transition: color .15s;
    font-size: 15px;
}
.mls-row-sub {
    display: block;
    color: var(--mls-muted);
    font-size: 12px;
    margin-top: 4px;
}

.mls-legend {
    margin-top: 72px;
    padding-top: 24px;
    border-top: 1px solid var(--mls-border);
    font-size: 13px;
    color: var(--mls-muted);
    display: flex;
    gap: 28px;
    flex-wrap: wrap;
}
.mls-legend-item::before { content: '◆ '; color: var(--mls-indigo); margin-right: 4px; }
.mls-legend-item.violet::before { color: var(--mls-violet); }
.mls-legend-item.cyan::before { color: var(--mls-cyan); }

/* ── Chapter page ───────────────────────────────────────────────── */
.mls-chapter {
    max-width: 76ch;
    margin: 0 auto;
    padding: 48px 24px 120px;
}
.mls-chapter-head {
    border-left: 2px solid var(--mls-indigo);
    padding: 6px 0 6px 24px;
    margin: 40px 0 48px;
    position: relative;
}
.mls-chapter-head::before {
    content: '';
    position: absolute;
    left: -6px;
    top: 12px;
    width: 10px;
    height: 10px;
    background: var(--mls-indigo);
    border-radius: 50%;
    box-shadow: 0 0 14px rgba(129, 140, 248, 0.6);
}
.mls-chapter-meta {
    display: flex;
    gap: 16px;
    font-size: 12px;
    color: var(--mls-muted);
    letter-spacing: 0.1em;
    text-transform: uppercase;
    margin-bottom: 14px;
    align-items: center;
}
.mls-chapter-meta .eyebrow { color: var(--mls-indigo); }
.mls-chapter-title {
    font-size: clamp(24px, 3.6vw, 34px);
    font-weight: 600;
    color: #fff;
    margin: 0 0 14px;
    line-height: 1.28;
    letter-spacing: -0.015em;
    font-family: var(--mls-mono);
}

.mls-content {
    color: var(--mls-fg);
    font-size: 16px;
    line-height: 1.85;
}
.mls-content h1,
.mls-content h2,
.mls-content h3,
.mls-content h4 {
    color: var(--mls-indigo);
    font-weight: 600;
    margin: 2.4em 0 0.6em;
    letter-spacing: -0.01em;
    font-family: var(--mls-mono);
}
.mls-content h1 { font-size: 24px; }
.mls-content h2 { font-size: 20px; }
.mls-content h3 { font-size: 17px; color: var(--mls-cyan); }
.mls-content h4 { font-size: 16px; color: var(--mls-violet); opacity: 0.9; }
.mls-content h1::before,
.mls-content h2::before { content: '§ '; color: var(--mls-muted); font-weight: 400; }

.mls-content p { margin: 0 0 1.1em; }
.mls-content a {
    color: var(--mls-indigo);
    text-decoration: underline;
    text-decoration-style: dotted;
    text-underline-offset: 3px;
}
.mls-content a:hover { color: var(--mls-cyan); }
.mls-content strong { color: #fff; font-weight: 600; }
.mls-content em { color: var(--mls-violet); font-style: italic; }
.mls-content code {
    background: rgba(129, 140, 248, 0.08);
    padding: 1px 6px;
    color: var(--mls-indigo);
    font-size: 14px;
    border: 1px solid var(--mls-border);
    border-radius: 2px;
}
.mls-content pre {
    background: var(--mls-bg-2);
    border: 1px solid var(--mls-border);
    border-left: 2px solid var(--mls-indigo);
    padding: 18px 20px;
    overflow-x: auto;
    font-size: 13.5px;
    margin: 1.4em 0;
    line-height: 1.6;
}
.mls-content pre code {
    background: none;
    border: none;
    padding: 0;
    color: var(--mls-fg);
}
.mls-content blockquote {
    border-left: 2px solid var(--mls-cyan);
    padding: 2px 0 2px 20px;
    color: var(--mls-muted);
    margin: 1.4em 0;
    font-style: italic;
}
.mls-content ul,
.mls-content ol { padding-left: 24px; margin: 0 0 1.1em; }
.mls-content li { margin: 0.35em 0; }
.mls-content ul li::marker { color: var(--mls-indigo); }
.mls-content ol li::marker { color: var(--mls-cyan); }
.mls-content hr {
    border: none;
    border-top: 1px dashed var(--mls-border);
    margin: 2.4em 0;
}
.mls-content img { max-width: 100%; height: auto; border: 1px solid var(--mls-border); }
.mls-content table {
    border-collapse: collapse;
    width: 100%;
    margin: 1.4em 0;
    font-size: 14px;
}
.mls-content th,
.mls-content td {
    border: 1px solid var(--mls-border);
    padding: 8px 12px;
    text-align: left;
    vertical-align: top;
}
.mls-content th {
    background: rgba(129, 140, 248, 0.06);
    color: var(--mls-indigo);
    font-weight: 600;
}

.mls-chapter-nav {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    margin-top: 80px;
    padding-top: 28px;
    border-top: 1px solid var(--mls-border);
}
.mls-chapter-nav a {
    color: var(--mls-muted);
    text-decoration: none;
    font-size: 14px;
    display: block;
    line-height: 1.5;
    transition: color .15s;
}
.mls-chapter-nav a.next { text-align: right; }
.mls-chapter-nav a:hover { color: var(--mls-indigo); }
.mls-chapter-nav .label {
    display: block;
    font-size: 11px;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    opacity: 0.6;
    margin-bottom: 6px;
    color: var(--mls-indigo);
}

@media (max-width: 720px) {
    .mls-row { grid-template-columns: auto 1fr; gap: 12px; }
    .mls-row-idx { display: none; }
    .mls-tree pre { font-size: 11px; }
    .mls-legend { gap: 14px; }
}