/* The V Lab — site styles.
   A health data science notebook: journal-style serif headings, civic sans body,
   navy + teal identity shared with the course pages. CTAS triage colours appear
   only inside data graphics. */

:root {
  --ink: #13293d;
  --ink-soft: #2b4258;
  --muted: #546a7d;
  --teal: #0b6b66;
  --teal-dark: #07524e;
  --teal-pale: #e3f1ef;
  --paper: #f3f6f7;
  --surface: #ffffff;
  --line: #d4dee4;
  --line-strong: #b4c4ce;
  --amber-pale: #fbf1dc;
  --focus: #c2410c;

  /* Canadian Triage and Acuity Scale colours (CTAS 1–5) */
  --ctas-1: #1f4fb8;
  --ctas-2: #c4322a;
  --ctas-3: #e2b21c;
  --ctas-4: #2f8a4f;
  --ctas-5: #ffffff;

  --serif: "Source Serif 4", "Source Serif Pro", Georgia, "Times New Roman", serif;
  --sans: "Public Sans", system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  --mono: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  --radius: 10px;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root {
    --ink: #e4edf3;
    --ink-soft: #c3d3de;
    --muted: #9db1c0;
    --teal: #5cc4ba;
    --teal-dark: #8ad9d0;
    --teal-pale: #123533;
    --paper: #0e1922;
    --surface: #15232e;
    --line: #283a48;
    --line-strong: #3a5163;
    --amber-pale: #30270f;
    --ctas-5: #e9eef2;
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.6;
  color: var(--ink);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
  font-variant-numeric: lining-nums;
}

h1, h2, h3 { font-family: var(--serif); font-weight: 600; color: var(--ink); letter-spacing: -0.005em; }
h1 { line-height: 1.12; }
h2 { line-height: 1.2; }
h3 { line-height: 1.3; }

a { color: var(--teal); text-underline-offset: 3px; text-decoration-thickness: 1px; }
a:hover { color: var(--teal-dark); }
:focus-visible { outline: 3px solid var(--focus); outline-offset: 3px; border-radius: 4px; }

.wrap { width: min(1140px, 100% - 32px); margin-inline: auto; }

.skip { position: absolute; left: -999px; top: 8px; background: var(--surface); padding: 8px 14px; border-radius: 8px; z-index: 10; }
.skip:focus { left: 16px; }

/* ---------- Header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 5;
  background: color-mix(in srgb, var(--paper) 90%, transparent);
  backdrop-filter: saturate(140%) blur(10px);
  border-bottom: 1px solid var(--line);
}
.site-header .wrap { display: flex; align-items: center; justify-content: space-between; gap: 16px; min-height: 64px; flex-wrap: wrap; }

.vlab-brand { display: inline-flex; align-items: center; gap: 0.6rem; color: var(--ink); text-decoration: none; line-height: 1; }
.vlab-brand:hover { color: var(--teal-dark); }
.vlab-mark {
  display: inline-flex; align-items: center; justify-content: center;
  width: 2rem; height: 2rem; border-radius: 8px;
  color: #fff; background: linear-gradient(135deg, #17324d, #0b6b66);
  font-family: var(--serif); font-weight: 700; font-size: 1.05rem;
}
.vlab-name { font-family: var(--serif); font-weight: 600; font-size: 1.15rem; }

.nav { display: flex; gap: 2px; flex-wrap: wrap; }
.nav a { color: var(--muted); text-decoration: none; font-weight: 600; font-size: 0.95rem; padding: 8px 12px; border-radius: 8px; }
.nav a:hover { color: var(--ink); background: color-mix(in srgb, var(--teal) 8%, transparent); }
.nav a[aria-current="page"] { color: var(--teal-dark); background: var(--teal-pale); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 11px 18px; border-radius: 8px; font-weight: 700; font-size: 0.98rem; text-decoration: none;
  border: 1px solid transparent;
}
.btn-primary { background: #0b6b66; color: #fff; }
.btn-primary:hover { background: #07524e; color: #fff; }
.btn-outline { border-color: var(--line-strong); color: var(--ink); background: var(--surface); }
.btn-outline:hover { border-color: var(--teal); color: var(--teal-dark); }
.actions { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 26px; }
.hero-actions { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 26px; }

/* ---------- Home: Project 001 lead ---------- */
.lead { padding: clamp(36px, 6vw, 72px) 0 clamp(40px, 6vw, 72px); border-bottom: 1px solid var(--line); }
.lead .wrap { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr); gap: clamp(28px, 5vw, 64px); align-items: start; }
.lead-kicker { margin: 0 0 14px; font-weight: 700; color: var(--teal-dark); font-size: 0.95rem; }
.lead-kicker a { color: inherit; text-decoration: none; }
.lead h1 { font-size: clamp(2.1rem, 4.4vw, 3.3rem); margin: 0 0 18px; max-width: 17ch; }
.lead .lede { font-size: clamp(1.05rem, 1.8vw, 1.18rem); color: var(--ink-soft); margin: 0; max-width: 54ch; }
.lead .fine { margin: 22px 0 0; font-size: 0.88rem; color: var(--muted); max-width: 54ch; }

/* CONSORT-style cohort flow */
.flow { margin: 0; background: var(--surface); border: 1px solid var(--line); border-radius: 14px; padding: clamp(18px, 3vw, 28px); }
.flow figcaption { font-size: 0.85rem; color: var(--muted); margin-top: 16px; }
.flow-row { display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr); gap: 14px; align-items: center; }
.flow-row + .flow-row { margin-top: 0; }
.step {
  position: relative; border: 1.5px solid var(--ink); border-radius: 6px; padding: 10px 14px; background: var(--surface);
}
.step b { display: block; font-family: var(--serif); font-size: 1.35rem; font-weight: 600; line-height: 1.15; font-variant-numeric: tabular-nums; }
.step span { display: block; font-size: 0.9rem; color: var(--ink-soft); line-height: 1.4; }
.step .memo { position: absolute; top: -10px; right: 10px; background: var(--teal); color: #fff; font-size: 0.72rem; font-weight: 700; padding: 1px 7px; border-radius: 4px; text-decoration: none; }
.step .memo:hover { background: var(--teal-dark); color: #fff; }
.excl { border: 1px dashed var(--line-strong); border-radius: 6px; padding: 8px 12px; font-size: 0.86rem; color: var(--muted); line-height: 1.4; position: relative; }
.excl::before { content: ""; position: absolute; left: -15px; top: 50%; width: 14px; border-top: 1.5px solid var(--line-strong); }
.down { width: calc((100% - 14px) * 1.25 / 2.25); display: flex; justify-content: center; height: 26px; }
.down::before { content: ""; width: 0; border-left: 1.5px solid var(--ink); height: 100%; }
.down.arrow { position: relative; }
.down.arrow::after { content: ""; position: absolute; bottom: 0; left: calc(50% - 5px); border: 5px solid transparent; border-top: 7px solid var(--ink); border-bottom: 0; }
.branch { margin-top: 18px; padding-top: 16px; border-top: 1px solid var(--line); }
.branch-title { font-size: 0.86rem; font-weight: 700; color: var(--ink-soft); margin: 0 0 10px; }
.chain { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 22px; }
.chain .step b { font-size: 1.15rem; }
.chain .step + .step::before { content: ""; position: absolute; left: -22px; top: 50%; width: 20px; border-top: 1.5px solid var(--ink); }
.chain .step + .step::after { content: ""; position: absolute; left: -7px; top: calc(50% - 5px); border: 5px solid transparent; border-left: 7px solid var(--ink); border-right: 0; }

.ctas { margin-top: 9px; }
.ctas-bar { display: flex; height: 12px; border-radius: 3px; overflow: hidden; border: 1px solid var(--line-strong); }
.ctas-bar i { display: block; height: 100%; }
.ctas-bar i + i { border-left: 1px solid var(--surface); }
.c1 { background: var(--ctas-1); } .c2 { background: var(--ctas-2); } .c3 { background: var(--ctas-3); } .c4 { background: var(--ctas-4); } .c5 { background: var(--ctas-5); }
.ctas-key { display: flex; justify-content: space-between; font-size: 0.75rem; color: var(--muted); margin-top: 4px; font-variant-numeric: tabular-nums; }

/* ---------- Sections ---------- */
main section { padding: clamp(44px, 7vw, 76px) 0; }
main section + section { border-top: 1px solid var(--line); }
.section-head { display: flex; justify-content: space-between; align-items: end; gap: 16px; flex-wrap: wrap; margin-bottom: 26px; }
.section-head h2 { font-size: clamp(1.55rem, 3vw, 2.05rem); margin: 0; }
.section-head p { margin: 8px 0 0; color: var(--muted); max-width: 62ch; }
.more { font-weight: 700; text-decoration: none; white-space: nowrap; }

/* Memo sequence */
.phases { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 0; border-top: 2px solid var(--ink); }
.phase { padding: 18px 22px 6px 0; }
.phase + .phase { padding-left: 22px; border-left: 1px solid var(--line); }
.phase h3 { font-size: 1.15rem; margin: 0 0 4px; }
.phase > p { margin: 0 0 12px; color: var(--muted); font-size: 0.93rem; }
.memos { list-style: none; margin: 0; padding: 0; }
.memos li { display: grid; grid-template-columns: 3.2em 1fr; gap: 8px; padding: 10px 0; border-top: 1px solid var(--line); }
.memos a.id { font-weight: 700; text-decoration: none; font-variant-numeric: tabular-nums; }
.memos a.id:hover { text-decoration: underline; }
.memos span { font-size: 0.94rem; color: var(--ink-soft); line-height: 1.45; }
.memos em { display: block; font-style: normal; font-size: 0.84rem; color: var(--muted); margin-top: 2px; }

/* About-me band */
.me { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr); gap: clamp(28px, 5vw, 64px); align-items: start; }
.me h2 { font-size: clamp(1.55rem, 3vw, 2.05rem); margin: 0 0 14px; }
.me p { margin: 0 0 14px; max-width: 60ch; }
.kit { margin: 0; display: grid; grid-template-columns: 9em 1fr; gap: 10px 16px; font-size: 0.95rem; }
.kit dt { font-weight: 700; color: var(--ink); }
.kit dd { margin: 0; color: var(--ink-soft); }

/* Track list */
.tracks { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); column-gap: 40px; }
.tracks li { border-top: 1px solid var(--line); }
.tracks a { display: grid; grid-template-columns: 1fr auto; gap: 4px 16px; padding: 14px 0; text-decoration: none; color: inherit; }
.tracks a:hover h3 { color: var(--teal-dark); text-decoration: underline; text-underline-offset: 3px; }
.tracks h3 { font-size: 1.12rem; margin: 0; }
.tracks .n { color: var(--muted); font-size: 0.9rem; font-variant-numeric: tabular-nums; white-space: nowrap; }
.tracks p { grid-column: 1 / -1; margin: 0; color: var(--muted); font-size: 0.94rem; }

/* ---------- Generic blocks used across pages ---------- */
.hero { padding: clamp(36px, 6vw, 64px) 0 clamp(28px, 4vw, 44px); border-bottom: 1px solid var(--line); }
.hero.compact { padding: clamp(36px, 6vw, 60px) 0 clamp(28px, 4vw, 40px); }
.eyebrow { display: block; font-size: 0.95rem; font-weight: 700; color: var(--teal-dark); margin-bottom: 10px; }
.hero h1 { font-size: clamp(2rem, 4.2vw, 2.9rem); margin: 0 0 14px; }
.hero p.lede { font-size: clamp(1.05rem, 1.8vw, 1.18rem); color: var(--ink-soft); max-width: 62ch; margin: 0; }

.grid { display: grid; gap: 18px; }
.grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }

.card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 20px 22px; display: flex; flex-direction: column; gap: 10px; }
.card h3 { margin: 0; font-size: 1.15rem; }
.card p { margin: 0; color: var(--muted); font-size: 0.96rem; }
.card .links { margin-top: auto; display: flex; gap: 14px; flex-wrap: wrap; padding-top: 6px; font-weight: 700; font-size: 0.93rem; }
.card .links a { text-decoration: none; }
.card .links a:hover { text-decoration: underline; }
a.card-link { text-decoration: none; color: inherit; }
a.card-link:hover { border-color: var(--teal); }
a.card-link:hover h3 { color: var(--teal-dark); }
a.card-link .go { color: var(--teal); font-weight: 700; font-size: 0.93rem; margin-top: auto; padding-top: 6px; }

.icon { width: 40px; height: 40px; border-radius: 8px; display: grid; place-items: center; background: var(--teal-pale); color: var(--teal); }
.icon svg { width: 22px; height: 22px; }

.tag { display: inline-block; font-size: 0.78rem; font-weight: 700; padding: 2px 8px; border-radius: 4px; background: color-mix(in srgb, var(--ink) 7%, transparent); color: var(--ink-soft); }
.tag.amber { background: var(--amber-pale); color: #8a5a00; }
.tag.teal { background: var(--teal-pale); color: var(--teal-dark); }
.tags { display: flex; gap: 6px; flex-wrap: wrap; align-items: center; }
.count { color: var(--muted); font-weight: 600; font-size: 0.95rem; }

.feature { display: grid; grid-template-columns: 1.1fr 1fr; gap: 32px; align-items: center; background: var(--surface); border: 1px solid var(--line); border-radius: 14px; padding: clamp(22px, 4vw, 38px); }
.feature h3 { font-size: clamp(1.4rem, 2.6vw, 1.8rem); margin: 8px 0 12px; }
.feature p { color: var(--ink-soft); }
.feature img { width: 100%; height: auto; border-radius: 8px; border: 1px solid var(--line); display: block; }
.checklist { list-style: none; padding: 0; margin: 16px 0 0; display: grid; gap: 8px; }
.checklist li { padding-left: 26px; position: relative; }
.checklist li::before { content: ""; position: absolute; left: 4px; top: 0.62em; width: 8px; height: 8px; border-radius: 2px; background: var(--teal); }

/* Activity list */
.activity { list-style: none; padding: 0; margin: 0; border-top: 1px solid var(--line); }
.activity li { display: grid; grid-template-columns: 7.5em minmax(10em, 15em) 1fr; gap: 6px 20px; padding: 13px 0; border-bottom: 1px solid var(--line); align-items: baseline; }
.activity time { order: -1; color: var(--muted); font-size: 0.9rem; font-variant-numeric: tabular-nums; }
.activity a { font-weight: 700; text-decoration: none; }
.activity a:hover { text-decoration: underline; }
.activity .what { color: var(--ink-soft); font-size: 0.95rem; }

/* Learn catalog */
.toolbar { display: flex; gap: 12px; flex-wrap: wrap; align-items: center; margin-bottom: 28px; position: sticky; top: 65px; z-index: 2; background: var(--paper); padding: 12px 0; }
.search { flex: 1 1 260px; min-width: 0; font: inherit; font-size: 1rem; color: var(--ink); padding: 10px 14px; border: 1px solid var(--line-strong); border-radius: 8px; background: var(--surface); }
.chips { display: flex; gap: 8px; flex-wrap: wrap; }
.chip { font: inherit; font-size: 0.9rem; font-weight: 600; cursor: pointer; padding: 7px 13px; border-radius: 999px; border: 1px solid var(--line-strong); background: var(--surface); color: var(--ink-soft); }
.chip[aria-pressed="true"] { background: var(--teal); border-color: var(--teal); color: #fff; }
@media (prefers-color-scheme: dark) { .chip[aria-pressed="true"] { color: #0e1922; } }
.track { margin-bottom: 44px; }
.track-head { display: flex; align-items: baseline; gap: 12px; flex-wrap: wrap; margin-bottom: 6px; }
.track-head h2 { margin: 0; font-size: 1.5rem; }
.track > p { color: var(--muted); margin: 0 0 18px; max-width: 70ch; }
.course-num { font-size: 0.8rem; font-weight: 700; color: var(--muted); font-variant-numeric: tabular-nums; }
.empty { color: var(--muted); padding: 24px 0; }

/* Code */
pre { background: #0f1d2a; color: #e3edf5; border-radius: 8px; padding: 16px 18px; overflow-x: auto; font-family: var(--mono); font-size: 0.88rem; line-height: 1.55; margin: 0; }
code { font-family: var(--mono); font-size: 0.88em; }
p code, li code, td code { background: color-mix(in srgb, var(--ink) 7%, transparent); padding: 1px 5px; border-radius: 4px; }

/* Tables */
.fn-table { width: 100%; border-collapse: collapse; font-size: 0.95rem; }
.fn-table th, .fn-table td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--line); vertical-align: top; }
.fn-table thead th { color: var(--muted); font-size: 0.85rem; font-weight: 700; }
.fn-table td:first-child { white-space: nowrap; }
.table-scroll { overflow-x: auto; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); }

/* Prose */
.prose { max-width: 70ch; }
.prose h2 { margin-top: 0; }
.note { background: var(--amber-pale); border-radius: 8px; padding: 14px 18px; color: var(--ink); font-size: 0.95rem; }

/* ---------- Footer ---------- */
.site-footer { border-top: 1px solid var(--line); padding: 40px 0 48px; color: var(--muted); font-size: 0.93rem; }
.site-footer .wrap { display: flex; justify-content: space-between; gap: 24px; flex-wrap: wrap; }
.site-footer nav { display: flex; gap: 18px; flex-wrap: wrap; }
.site-footer a { color: var(--muted); text-decoration: none; font-weight: 600; }
.site-footer a:hover { color: var(--teal); }

/* ---------- Responsive ---------- */
@media (max-width: 960px) {
  .lead .wrap { grid-template-columns: 1fr; }
  .lead h1 { max-width: 22ch; }
  .phases { grid-template-columns: 1fr; }
  .phase, .phase + .phase { padding: 18px 0 6px; border-left: 0; }
  .phase + .phase { border-top: 1px solid var(--line-strong); }
  .me { grid-template-columns: 1fr; }
  .grid-3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .feature { grid-template-columns: 1fr; }
}
@media (max-width: 620px) {
  body { font-size: 16px; }
  .grid-3, .grid-2, .tracks { grid-template-columns: 1fr; }
  .site-header .wrap { padding: 10px 0; }
  .nav a { padding: 6px 9px; font-size: 0.9rem; }
  .toolbar { top: 0; position: static; }
  .fn-table td:first-child { white-space: normal; }
  .flow-row { grid-template-columns: 1fr; gap: 8px; }
  .down { width: 100%; }
  .excl::before { display: none; }
  .excl { margin-left: 18px; }
  .chain { grid-template-columns: 1fr; gap: 20px; }
  .chain .step + .step::before { left: 50%; top: -19px; width: 0; height: 17px; border-top: 0; border-left: 1.5px solid var(--ink); }
  .chain .step + .step::after { left: calc(50% - 4px); top: -6px; border: 5px solid transparent; border-top: 7px solid var(--ink); border-bottom: 0; }
  .activity li { grid-template-columns: 1fr; gap: 2px; }
  .kit { grid-template-columns: 1fr; gap: 2px; }
  .kit dd { margin-bottom: 10px; }
}
@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; scroll-behavior: auto !important; }
}
@media (prefers-color-scheme: dark) {
  .step .memo, .step .memo:hover { color: #0e1922; }
  .btn-primary { background: #5cc4ba; color: #0e1922; }
  .btn-primary:hover { background: #8ad9d0; color: #0e1922; }
}

/* ---------- Projects: Project 001 write-up ---------- */
.p-block { margin-top: clamp(40px, 6vw, 64px); }
.p-block > h2 { font-size: clamp(1.4rem, 2.6vw, 1.8rem); margin: 0 0 18px; padding-top: 18px; border-top: 2px solid var(--ink); }
.p-note { color: var(--ink-soft); font-size: 0.97rem; max-width: 76ch; margin: 14px 0 0; }
.pathway { list-style: none; margin: 0 0 22px; padding: 0; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 28px; }
.pathway li { position: relative; border: 1.5px solid var(--ink); border-radius: 6px; padding: 12px 16px; background: var(--surface); }
.pathway li + li::before { content: ""; position: absolute; left: -28px; top: 50%; width: 26px; border-top: 1.5px solid var(--ink); }
.pathway li + li::after { content: ""; position: absolute; left: -8px; top: calc(50% - 5px); border: 5px solid transparent; border-left: 7px solid var(--ink); border-right: 0; }
.pathway b { display: block; font-family: var(--serif); font-size: 1.15rem; font-weight: 600; }
.pathway span { font-size: 0.92rem; color: var(--ink-soft); }
.sources { margin: 0; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; }
.sources div { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 16px 20px; }
.sources dt { font-family: var(--serif); font-weight: 600; font-size: 1.2rem; margin-bottom: 4px; }
.sources dd { margin: 0; color: var(--ink-soft); font-size: 0.96rem; }
.q-table td { white-space: normal !important; width: 33%; }
.q-table td:first-child { font-weight: 600; color: var(--ink); }
.two-col { display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr); gap: clamp(24px, 4vw, 48px); align-items: start; }
.two-col .prose p:first-child { margin-top: 0; }
.result-table caption { caption-side: top; text-align: left; padding: 12px 12px 4px; font-weight: 700; font-size: 0.9rem; color: var(--muted); }
.result-table th { font-weight: 600; color: var(--ink-soft); font-size: 0.93rem; text-transform: none; letter-spacing: 0; }
.result-table td { text-align: right; font-family: var(--serif); font-size: 1.15rem; font-weight: 600; white-space: nowrap; font-variant-numeric: tabular-nums; }
.result-table td span { font-family: var(--sans); font-size: 0.8rem; font-weight: 400; color: var(--muted); }
@media (max-width: 960px) { .two-col { grid-template-columns: 1fr; } }
@media (max-width: 620px) {
  .pathway { grid-template-columns: 1fr; gap: 22px; }
  .pathway li + li::before { left: 50%; top: -21px; width: 0; height: 19px; border-top: 0; border-left: 1.5px solid var(--ink); }
  .pathway li + li::after { left: calc(50% - 4px); top: -7px; border: 5px solid transparent; border-top: 7px solid var(--ink); border-bottom: 0; }
  .sources { grid-template-columns: 1fr; }
  .q-table, .q-table tbody, .q-table tr, .q-table td { display: block; width: auto; }
  .q-table thead { display: none; }
  .q-table tr { border-bottom: 1px solid var(--line); padding: 6px 0; }
  .q-table td { border: 0; padding: 4px 12px; }
}

.lead-title { font-family: var(--serif); font-size: 1.02rem; line-height: 1.45; color: var(--muted); margin: -4px 0 18px; max-width: 52ch; }

/* ---------- Math page ---------- */
.toc { display: flex; flex-wrap: wrap; gap: 6px 18px; margin-top: 22px; font-size: 0.95rem; font-weight: 600; }
.toc a { text-decoration: none; }
.toc a:hover { text-decoration: underline; }
.where-table td:nth-child(2), .where-table td:nth-child(3) { white-space: nowrap; }
.where-table td code { background: none; padding: 0; }
.ex-group { margin-top: 26px; }
.ex-group > h3 { font-size: 1.1rem; margin: 0 0 10px; }
.ex { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); overflow: hidden; }
.ex + .ex { margin-top: 10px; }
.ex-src { position: relative; border-right: 1px solid var(--line); }
.ex-src pre, .code-wrap pre { border-radius: 0; height: 100%; padding-right: 72px; white-space: pre-wrap; word-break: break-word; }
.ex-out { padding: 14px 18px; display: flex; flex-direction: column; justify-content: center; min-width: 0; }
.ex-out .tex { overflow-x: auto; overflow-y: hidden; font-family: var(--mono); font-size: 0.85rem; color: var(--muted); }
.ex-out .tex.rendered { font-family: inherit; color: var(--ink); font-size: 1rem; }
.ex-out .katex-display { margin: 0.3em 0; }
.ex-note { margin: 8px 0 0; font-size: 0.88rem; color: var(--muted); }
.copy { position: absolute; top: 8px; right: 8px; font: inherit; font-size: 0.78rem; font-weight: 700; padding: 3px 9px; border-radius: 5px; border: 1px solid rgba(255,255,255,0.25); background: rgba(255,255,255,0.08); color: #e3edf5; cursor: pointer; }
.copy:hover { background: rgba(255,255,255,0.18); }
.code-wrap { position: relative; display: flex; flex-direction: column; }
.code-wrap pre { border-radius: 8px; flex: 1; }
.code-cap { margin: 0 0 6px; font-size: 0.88rem; font-weight: 700; color: var(--ink-soft); }
.code-wrap .copy { top: 34px; }
.pitfalls { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0 40px; }
.pitfalls li { border-top: 1px solid var(--line); padding: 16px 0; }
.pitfalls h3 { font-size: 1.08rem; margin: 0 0 6px; }
.pitfalls p { margin: 0; color: var(--ink-soft); font-size: 0.96rem; }
.pitfalls .fix { margin-top: 10px; font-size: 0.85rem; padding: 10px 14px; }
.playground { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 20px; }
.playground label, .pg-label { display: block; font-weight: 700; font-size: 0.9rem; margin: 0 0 6px; color: var(--ink-soft); }
.playground textarea { width: 100%; font-family: var(--mono); font-size: 0.92rem; padding: 12px 14px; border: 1px solid var(--line-strong); border-radius: 8px; background: var(--surface); color: var(--ink); resize: vertical; }
.inline-toggle { display: inline-flex !important; align-items: center; gap: 8px; margin-top: 10px !important; font-weight: 600 !important; }
.pg-out { min-height: 150px; border: 1px solid var(--line); border-radius: 8px; background: var(--surface); padding: 16px; overflow-x: auto; display: flex; align-items: center; justify-content: center; }
.pg-err { min-height: 1.4em; margin: 8px 0 0; font-size: 0.9rem; color: var(--focus); }
@media (max-width: 760px) {
  .ex, .playground, .pitfalls { grid-template-columns: 1fr; }
  .ex-src { border-right: 0; border-bottom: 1px solid var(--line); }
}

/* ---------- Geography page ---------- */
.ladder { list-style: none; margin: 0; padding: 0; border-top: 2px solid var(--ink); }
.ladder li { display: grid; grid-template-columns: 17em minmax(0, 1fr); grid-template-areas: "name bar" "name text"; gap: 6px 28px; padding: 16px 0; border-bottom: 1px solid var(--line); }
.ladder-name { grid-area: name; display: flex; justify-content: space-between; align-items: baseline; gap: 12px; }
.ladder-name h3 { margin: 0; font-size: 1.1rem; }
.ladder-name .n { font-family: var(--serif); font-size: 1.5rem; font-weight: 600; font-variant-numeric: tabular-nums; color: var(--teal-dark); }
.ladder .bar { grid-area: bar; height: 10px; border-radius: 2px; background: linear-gradient(90deg, var(--teal) var(--w), color-mix(in srgb, var(--teal) 10%, transparent) var(--w)); margin-top: 8px; }
.ladder p { grid-area: text; margin: 0; color: var(--ink-soft); font-size: 0.96rem; max-width: 72ch; }
.blocks { display: grid; grid-template-columns: 17em minmax(0, 1fr); gap: 28px; padding: 18px 0 0; align-items: start; }
.blocks b { display: block; font-family: var(--serif); font-size: 1.9rem; font-weight: 600; line-height: 1.1; }
.blocks span { font-size: 0.92rem; color: var(--ink-soft); }
.blocks p { margin: 0; color: var(--ink-soft); font-size: 0.96rem; max-width: 72ch; }
.level-table td:first-child { font-weight: 600; color: var(--ink); white-space: normal !important; }
.continuum { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(7, minmax(0, 1fr)); gap: 0; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; background: var(--surface); }
.continuum li { padding: 16px 14px; border-top: 6px solid color-mix(in srgb, var(--teal) calc(100% - var(--i) * 14%), var(--line)); }
.continuum li + li { border-left: 1px solid var(--line); }
.continuum li:nth-child(1) { --i: 0; } .continuum li:nth-child(2) { --i: 1; } .continuum li:nth-child(3) { --i: 2; } .continuum li:nth-child(4) { --i: 3; } .continuum li:nth-child(5) { --i: 4; } .continuum li:nth-child(6) { --i: 5; } .continuum li:nth-child(7) { --i: 6; }
.continuum h3 { font-size: 1rem; margin: 0 0 6px; }
.continuum p { margin: 0; font-size: 0.88rem; color: var(--ink-soft); line-height: 1.45; }
@media (max-width: 1100px) { .continuum { grid-template-columns: repeat(4, minmax(0, 1fr)); } .continuum li:nth-child(5) { border-left: 0; } }
@media (max-width: 760px) {
  .ladder li, .blocks { grid-template-columns: 1fr; grid-template-areas: "name" "bar" "text"; gap: 6px; }
  .continuum { grid-template-columns: 1fr; }
  .continuum li + li { border-left: 0; }
}

/* ---------- SaTScan page ---------- */
.formula { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 10px 16px; overflow-x: auto; margin: 0 0 1em; }
.formula .tex:not(.rendered) { font-family: var(--mono); font-size: 0.88rem; color: var(--muted); }
.scan-fig { margin: 0; background: var(--surface); border: 1px solid var(--line); border-radius: 14px; padding: 18px; }
.scan-fig svg { width: 100%; height: auto; display: block; }
.scan-fig .pts circle { fill: var(--line-strong); }
.scan-fig .pts.hot circle { fill: var(--ctas-2); }
.scan-fig .win { fill: none; stroke: var(--ink); stroke-width: 1.2; stroke-dasharray: 4 4; }
.scan-fig .win.hit { fill: color-mix(in srgb, var(--ctas-2) 12%, transparent); stroke: var(--ctas-2); stroke-dasharray: none; stroke-width: 2; }
.scan-fig figcaption { font-size: 0.86rem; color: var(--muted); margin-top: 10px; }
.steps { list-style: none; counter-reset: step; margin: 0; padding: 0; }
.steps > li { counter-increment: step; position: relative; padding: 18px 0 18px 56px; border-top: 1px solid var(--line); }
.steps > li::before { content: counter(step); position: absolute; left: 0; top: 18px; width: 36px; height: 36px; border-radius: 50%; display: grid; place-items: center; background: var(--ink); color: var(--paper); font-family: var(--serif); font-weight: 600; font-size: 1.05rem; }
.steps h3 { margin: 4px 0 6px; font-size: 1.15rem; }
.steps p { margin: 0; color: var(--ink-soft); max-width: 74ch; }
.files { margin: 14px 0 0; }
.files pre { padding-right: 18px; font-size: 0.85rem; }
.link-list { padding-left: 1.2em; }
.link-list li { margin-bottom: 6px; }
.refs-line { margin: 22px 0 0; color: var(--ink-soft); font-size: 0.97rem; }

/* ---------- Atlas page ---------- */
.chips { display: flex; flex-wrap: wrap; gap: 6px; }
.ds-chip { display: inline-block; font-size: 0.78rem; font-weight: 700; padding: 2px 8px; border-radius: 4px; background: var(--teal-pale); color: var(--teal-dark); text-decoration: none; }
a.ds-chip:hover { text-decoration: underline; }
.journey { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); border-top: 2px solid var(--ink); }
.journey li { padding: 16px 16px 8px 0; display: flex; flex-direction: column; gap: 8px; }
.journey li + li { padding-left: 16px; border-left: 1px solid var(--line); }
.journey h3 { margin: 0; font-size: 1.05rem; }
.journey p { margin: 0; font-size: 0.9rem; color: var(--ink-soft); }
.j-step { font-family: var(--serif); font-weight: 600; color: var(--teal-dark); font-variant-numeric: tabular-nums; }
.j-cap { font-style: italic; color: var(--muted) !important; margin: 0; }
.ds-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; align-items: start; }
.ds-card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 20px 22px; display: flex; flex-direction: column; gap: 10px; }
.ds-card[hidden] { display: none; }
.ds-card > h3 { margin: 0; font-size: 1.12rem; }
.ds-card > p { margin: 0; color: var(--ink-soft); font-size: 0.95rem; }
.ds-head { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.ds-acr { font-family: var(--serif); font-weight: 700; font-size: 1.35rem; color: var(--teal-dark); margin-right: 4px; }
.ds-facts { margin: 4px 0 0; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px 16px; font-size: 0.88rem; }
.ds-facts.four { grid-template-columns: repeat(4, minmax(0, 1fr)); margin: 18px 0; }
.ds-facts dt { font-weight: 700; color: var(--muted); font-size: 0.8rem; }
.ds-facts dd { margin: 2px 0 0; color: var(--ink); }
.ds-card details { border-top: 1px solid var(--line); padding-top: 10px; }
.ds-card summary { cursor: pointer; font-weight: 700; color: var(--teal-dark); font-size: 0.93rem; }
.ds-card details h4, .dive h4 { font-family: var(--serif); font-size: 1rem; margin: 16px 0 6px; color: var(--ink); }
.ds-card details p { margin: 0; font-size: 0.93rem; color: var(--ink-soft); }
.ds-meta { margin: 0 0 6px !important; }
.plain-list { margin: 0; padding-left: 1.2em; font-size: 0.93rem; color: var(--ink-soft); }
.plain-list li + li { margin-top: 4px; }
.concept-table { font-size: 0.86rem; }
.concept-table td:first-child { font-weight: 600; white-space: normal !important; }
.concept-table code, .sample-table code { background: none; padding: 0; font-size: 0.85em; }
.ds-card .links { font-size: 0.88rem; padding-top: 2px; }
.dive { background: var(--surface); border: 1px solid var(--line); border-radius: 14px; padding: clamp(20px, 3vw, 32px); }
.dive + .dive { margin-top: 24px; }
.dive-head { display: flex; align-items: baseline; gap: 14px; }
.dive-head .ds-acr { font-size: 2rem; }
.dive-head h3 { margin: 0; font-size: 1.4rem; }
.dive-intro { color: var(--ink-soft); max-width: 78ch; }
.trace { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 8px 26px; counter-reset: tr; }
.trace li { counter-increment: tr; position: relative; font-size: 0.93rem; }
.trace li::before { content: counter(tr) ". "; font-weight: 700; color: var(--teal-dark); }
.trace li + li::after { content: "→"; position: absolute; left: -19px; color: var(--muted); }
.checklist.cross li::before { background: var(--ctas-2); border-radius: 50%; }
.dive .checklist li { font-size: 0.93rem; color: var(--ink-soft); }
.sample-table td:nth-child(2) { font-family: var(--mono); font-size: 0.85rem; }
.ex-q { font-weight: 600; color: var(--ink) !important; }
.ex-take { font-size: 0.9rem; color: var(--muted) !important; }
.kit.design { grid-template-columns: 6em 1fr; font-size: 0.9rem; }
.card h4 { margin: 0; font-family: var(--serif); font-size: 1.05rem; }
.res-list { list-style: none; margin: 0; padding: 0; }
.res-list li { padding: 12px 0; border-top: 1px solid var(--line); }
.res-list a { font-weight: 700; }
.res-list .org { color: var(--muted); font-size: 0.85rem; margin-left: 6px; }
.res-list p { margin: 4px 0 0; font-size: 0.93rem; color: var(--ink-soft); }
.res-grid h3 { font-size: 1.1rem; margin: 0 0 6px; }
.glossary { margin: 0; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0 40px; }
.glossary div { padding: 12px 0; border-top: 1px solid var(--line); }
.glossary dt { font-weight: 700; font-family: var(--serif); }
.glossary dd { margin: 4px 0 0; color: var(--ink-soft); font-size: 0.95rem; }
.section-head .filter { align-self: end; }
@media (max-width: 1100px) { .journey { grid-template-columns: repeat(3, minmax(0, 1fr)); } .journey li:nth-child(4) { padding-left: 0; border-left: 0; } .ds-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } .ds-facts.four { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 680px) { .journey, .ds-grid, .glossary { grid-template-columns: 1fr; } .journey li, .journey li + li { padding-left: 0; border-left: 0; border-top: 1px solid var(--line); } .ds-facts.four { grid-template-columns: 1fr 1fr; } }
.ds-card .links { display: flex; flex-wrap: wrap; gap: 6px 16px; font-weight: 700; }
.ds-card .links a { text-decoration: none; }
.ds-card .links a:hover { text-decoration: underline; }