/* siteoverlap.css — styles for /siteoverlap/ (explorer + methodology).
   Visual language follows the clinbolt.com home page and /feasibility/: sage page,
   dark-teal hero and footer, white rounded cards, pill controls, amber notice.
   Colours, fonts and spacing come from /_shared/tokens.css; the fallbacks below keep the
   page readable if that file is unavailable (local development without the shared folder). */

:root {
  --font-sans: "Segoe UI", ui-rounded, system-ui, -apple-system, "Helvetica Neue", Arial, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  --text-sm: 0.875rem; --text-base: 1rem; --text-lg: 1.25rem; --text-xl: 1.5rem; --text-display: clamp(1.9rem, 3.6vw, 2.75rem);
  --brand-teal: #0f766e; --brand-teal-deep: #134e4a; --brand-teal-text: #115e59; --brand-teal-tint: #dff2e9;
  --brand-mint: #5eead4; --brand-mint-soft: #99f6e4; --brand-amber: #f59e0b; --brand-amber-tint: #fcf1d6;
  --brand-amber-text: #78350f; --brand-amber-icon: #b45309; --hero-text: #d7eee7;
  --color-page: #f5f8f3; --color-bg: #ffffff; --color-surface: #f9fbf8; --color-surface-2: #eef4f0;
  --color-border: #d6e3dc; --color-border-strong: #b7cbc2; --color-text: #0f172a; --color-text-muted: #475569;
  --color-heading: #134e4a; --color-link: #0f766e; --color-primary: #0f766e; --color-primary-hover: #134e4a;
  --color-primary-ink: #ffffff; --color-focus: #0f766e;
  --color-good-bg: #e6f4ee; --color-good-border: #0f766e; --color-good-text: #115e59;
  --color-warn-bg: #fcf1d6; --color-warn-border: #e8b64c; --color-warn-text: #78350f;
  --color-info-bg: #dff2e9; --color-info-border: #5fb3a0; --color-info-text: #134e4a;
  --color-danger-bg: #fbe8e8; --color-danger-border: #d03b3b; --color-danger-text: #8a1f1f;
  --viz-seq-100: #ccfbf1; --viz-seq-300: #5eead4; --viz-seq-450: #0d9488; --viz-seq-550: #0f766e; --viz-seq-700: #134e4a;
  --viz-accent: #d97706; --viz-grid: #e3ebe6; --viz-land: #e8ece9;
  --space-1: 0.25rem; --space-2: 0.5rem; --space-3: 0.75rem; --space-4: 1rem; --space-6: 1.5rem; --space-8: 2rem;
  --radius: 12px; --radius-lg: 20px; --radius-xl: 28px; --radius-pill: 999px;
  --shadow: 0 1px 2px rgba(19, 78, 74, 0.06), 0 18px 40px -24px rgba(19, 78, 74, 0.35);
  --shadow-sm: 0 1px 2px rgba(19, 78, 74, 0.06), 0 6px 16px -10px rgba(19, 78, 74, 0.25);
  --content-max: 1280px;
  /* Chart series (validated pair on white: CVD ΔE 12.5, contrast ≥ 3:1) */
  --series-primary: #0d9488;
  --series-accent: #d97706;
  --series-muted: #94a3b8;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-padding-top: 88px; }
@media (prefers-reduced-motion: no-preference) { html { scroll-behavior: smooth; } }
body {
  margin: 0; font-family: var(--font-sans); font-size: var(--text-base); line-height: 1.55;
  color: var(--color-text); background: var(--color-page); overflow-x: hidden; -webkit-font-smoothing: antialiased;
}
a { color: var(--color-link); text-underline-offset: 0.15em; }
a:hover { color: var(--color-primary-hover); }
:focus-visible { outline: 3px solid var(--color-focus); outline-offset: 3px; border-radius: 6px; }
h1, h2, h3, h4 { line-height: 1.2; margin: 0 0 var(--space-3); color: var(--color-heading); text-wrap: balance; }
h1 { font-size: var(--text-display); font-weight: 800; letter-spacing: -0.02em; }
h2 { font-size: var(--text-lg); font-weight: 800; letter-spacing: -0.01em; }
h3 { font-size: var(--text-base); font-weight: 700; }
h4 { font-size: var(--text-sm); font-weight: 700; text-transform: uppercase; letter-spacing: 0.06em; color: var(--brand-teal-text); }
p { margin: 0 0 var(--space-3); text-wrap: pretty; }
code, pre { font-family: var(--font-mono); font-size: 0.9em; }
pre { background: var(--color-surface-2); padding: var(--space-3); border-radius: var(--radius); overflow-x: auto; }
.num { font-variant-numeric: tabular-nums; }
.muted { color: var(--color-text-muted); }
.small { font-size: var(--text-sm); }
.visually-hidden {
  position: absolute !important; width: 1px; height: 1px; overflow: hidden;
  clip: rect(0 0 0 0); white-space: nowrap; border: 0; padding: 0; margin: -1px;
}
[hidden] { display: none !important; }
.container { width: min(100% - 2rem, 1200px); margin-inline: auto; }

/* ---- Shared chrome (markup in /_shared/nav.html) ---- */
.skip-link {
  position: absolute; left: 1rem; top: -4rem; z-index: 100; padding: 0.6rem 1rem;
  background: var(--brand-teal); color: #fff; border-radius: var(--radius-pill); font-weight: 600; text-decoration: none;
}
.skip-link:focus { top: 1rem; color: #fff; }
.pill {
  display: inline-block; padding: 0.25em 0.8em; border-radius: var(--radius-pill);
  background: var(--brand-amber-tint); color: var(--brand-amber-text);
  font-size: 0.75rem; font-weight: 700; line-height: 1.4; white-space: nowrap;
}
.pill-sm { padding: 0.05em 0.55em; font-size: 0.68rem; }
.notice { background: var(--brand-amber-tint); border-bottom: 1px solid #f3dca4; color: var(--brand-amber-text); font-size: var(--text-sm); line-height: 1.45; }
.notice-inner { display: flex; align-items: flex-start; justify-content: center; gap: 10px; padding-block: 10px; }
.notice svg { flex-shrink: 0; margin-top: 1px; color: var(--brand-amber-icon); }
.notice p { margin: 0; }
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(245, 248, 243, 0.94); backdrop-filter: blur(8px); border-bottom: 1px solid var(--color-border);
}
.header-inner { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 0.5rem 1.5rem; padding-block: 14px; }
.brand { display: inline-flex; border-radius: 8px; }
.brand img { display: block; width: 158px; height: auto; }
.site-nav ul { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 2px 4px; }
.site-nav a {
  display: inline-flex; align-items: center; gap: 6px; padding: 8px 13px; border-radius: var(--radius-pill);
  color: var(--brand-teal-text); font-weight: 600; font-size: 0.94rem; text-decoration: none;
}
.site-nav a:hover, .site-nav a[aria-current="true"] { background: var(--brand-teal-tint); color: var(--brand-teal-deep); }
@media (max-width: 639px) {
  .site-header { position: static; }
  html { scroll-padding-top: 12px; }
  .header-inner { flex-direction: column; align-items: flex-start; gap: 6px; padding-block: 12px 8px; }
  .brand img { width: 136px; }
  .site-nav ul { margin-left: -10px; }
  .site-nav a { padding: 8px 10px; font-size: 0.9rem; }
}
.site-footer { margin-top: 48px; padding-block: 48px 56px; background: var(--brand-teal-deep); color: #cfe9e1; }
.site-footer :focus-visible { outline-color: #fcd34d; }
.footer-top { display: flex; flex-wrap: wrap; align-items: flex-start; justify-content: space-between; gap: 32px 48px; }
.footer-brand { display: flex; align-items: center; gap: 16px; }
.footer-logo { display: inline-flex; padding: 10px 14px; border-radius: 14px; background: var(--color-page); }
.footer-logo img { display: block; width: 120px; height: auto; }
.footer-brand p { margin: 0; font-size: 0.94rem; font-weight: 600; color: #fff; }
.footer-nav { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 22px 16px; }
@media (min-width: 768px) { .footer-nav { grid-template-columns: repeat(4, minmax(120px, auto)); column-gap: 56px; } }
.footer-heading { margin: 0 0 10px; font-size: 0.75rem; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; color: var(--brand-mint-soft); }
.footer-col ul { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 6px; }
.footer-col a { display: inline-block; padding: 3px 0; color: #fff; font-size: 0.94rem; font-weight: 600; text-decoration: none; }
.footer-col a:hover { color: #fff; text-decoration: underline; }
.footer-legal { margin-top: 28px; padding-top: 24px; border-top: 1px solid #2c6a64; display: flex; flex-direction: column; gap: 8px; font-size: var(--text-sm); }
.footer-legal p { margin: 0; }
.footer-legal strong { color: #fcd34d; }

/* ---- Page layout ---- */
.page { width: min(100% - 2rem, 1240px); margin-inline: auto; padding-top: clamp(16px, 3vw, 28px); }

/* Hero: the home page's dark-teal panel, compact */
.hero {
  position: relative; overflow: hidden; margin-bottom: var(--space-6);
  padding: clamp(24px, 4vw, 44px) clamp(20px, 4vw, 48px);
  border-radius: clamp(20px, 3vw, var(--radius-xl));
  background: var(--brand-teal-deep); color: #fff;
  display: flex; flex-direction: column; gap: var(--space-4);
}
.hero::before {
  content: ""; position: absolute; inset: auto 0 0 0; height: 70%;
  background-image: radial-gradient(rgba(153, 246, 228, 0.16) 1.2px, transparent 1.4px); background-size: 22px 22px;
  -webkit-mask-image: linear-gradient(180deg, transparent 0%, #000 45%); mask-image: linear-gradient(180deg, transparent 0%, #000 45%);
  pointer-events: none;
}
.hero :focus-visible { outline-color: #fcd34d; }
.hero-copy { position: relative; max-width: 50rem; }
.hero-eyebrow {
  margin: 0 0 var(--space-3); display: flex; align-items: center; gap: 10px; color: var(--brand-mint);
  font-size: 0.8125rem; font-weight: 700; letter-spacing: 0.12em; text-transform: uppercase;
}
.dot { width: 9px; height: 9px; flex-shrink: 0; border-radius: var(--radius-pill); background: var(--brand-amber); }
.hero h1 { color: #fff; margin-bottom: var(--space-3); letter-spacing: -0.03em; line-height: 1.05; }
.hero-lede { margin: 0; font-size: clamp(1rem, 1.5vw, 1.15rem); line-height: 1.5; color: var(--hero-text); }
.hero-meta { margin: var(--space-3) 0 0; font-size: var(--text-sm); color: var(--brand-mint-soft); }
.subnav { position: relative; display: flex; flex-wrap: wrap; gap: var(--space-2); }
.subnav a {
  display: inline-flex; align-items: center; min-height: 2.5rem; padding: 8px 18px; border-radius: var(--radius-pill);
  border: 1.5px solid rgba(94, 234, 212, 0.55); color: #fff; font-weight: 700; font-size: 0.94rem; text-decoration: none;
}
.subnav a:hover { background: rgba(94, 234, 212, 0.12); color: #fff; }
.subnav a[aria-current="page"] { background: var(--brand-mint); border-color: var(--brand-mint); color: var(--brand-teal-deep); }

/* ---- Boxes (colour + text, never colour alone) ---- */
.box { padding: var(--space-3) var(--space-4); border-radius: 14px; border: 1px solid; margin-bottom: var(--space-4); }
.box--warn { background: var(--color-warn-bg); border-color: var(--color-warn-border); color: var(--color-warn-text); }
.box--info { background: var(--color-info-bg); border-color: var(--color-info-border); color: var(--color-info-text); }
.box--danger { background: var(--color-danger-bg); border-color: var(--color-danger-border); color: var(--color-danger-text); }
.box--demo { background: #fde68a; border: 3px dashed var(--brand-amber-icon); color: #451a03; font-weight: 600; }
.box--demo p { margin: 0 0 var(--space-2); }
.box--demo p:last-child { margin: 0; }
.box p:last-child { margin-bottom: 0; }
.box .btn { margin-top: var(--space-2); }

/* ---- Search panel ---- */
.search-panel {
  background: var(--color-bg); border: 1px solid var(--color-border); border-radius: var(--radius-lg);
  padding: clamp(16px, 2.5vw, 24px); box-shadow: var(--shadow); margin-bottom: var(--space-6);
}
.search-form { display: flex; flex-direction: column; gap: var(--space-3); }
.mode-group { border: 0; padding: 0; margin: 0; }
.label, .field > label, .field legend { display: block; font-weight: 600; font-size: var(--text-sm); color: var(--color-heading); margin-bottom: 6px; }
.segmented { display: inline-flex; flex-wrap: wrap; gap: 4px; padding: 4px; border-radius: var(--radius-pill); background: var(--color-surface-2); }
.segmented label { position: relative; cursor: pointer; }
.segmented input { position: absolute; opacity: 0; inset: 0; width: 100%; height: 100%; margin: 0; cursor: pointer; }
.segmented span { display: inline-flex; align-items: center; min-height: 2.25rem; padding: 6px 16px; border-radius: var(--radius-pill); font-weight: 600; font-size: var(--text-sm); color: var(--brand-teal-text); }
.segmented input:checked + span { background: var(--color-bg); color: var(--brand-teal-deep); box-shadow: var(--shadow-sm); }
.segmented input:focus-visible + span { outline: 3px solid var(--color-focus); outline-offset: 1px; }
.search-row { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: var(--space-2); }
.search-input, .select, .input, .textarea {
  width: 100%; padding: 12px 14px; border-radius: var(--radius); border: 1px solid var(--color-border-strong);
  background: var(--color-surface); color: var(--color-text); font: inherit; font-size: 1rem; min-height: 3rem;
}
.search-input:focus-visible, .select:focus-visible, .input:focus-visible { outline-offset: 1px; border-color: var(--color-primary); border-radius: var(--radius); }
.select--small, .input--small { min-height: 2.25rem; padding: 4px 10px; font-size: var(--text-sm); width: auto; }
.hint { margin: 0; font-size: var(--text-sm); color: var(--color-text-muted); }
.search-options { display: flex; flex-wrap: wrap; align-items: center; gap: var(--space-2); }
.status-line { margin-top: var(--space-3); display: flex; align-items: center; gap: var(--space-2); font-size: var(--text-sm); color: var(--brand-teal-text); }
.spinner { width: 16px; height: 16px; border-radius: 50%; border: 2px solid var(--brand-teal-tint); border-top-color: var(--brand-teal); animation: spin 0.8s linear infinite; flex-shrink: 0; }
@keyframes spin { to { transform: rotate(360deg); } }
@media (prefers-reduced-motion: reduce) { .spinner { animation: none; } }
.progress { height: 6px; border-radius: 3px; background: var(--color-surface-2); overflow: hidden; flex: 1 1 120px; max-width: 240px; }
.progress > span { display: block; height: 100%; background: var(--brand-teal); transition: width 200ms ease; }

/* ---- Buttons ---- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px; min-height: 2.75rem; padding: 8px 18px;
  border-radius: var(--radius-pill); border: 1px solid var(--color-border-strong); background: var(--color-bg);
  color: var(--brand-teal-text); font: inherit; font-weight: 700; cursor: pointer; text-decoration: none;
}
.btn:hover { background: var(--brand-teal-tint); color: var(--brand-teal-deep); }
.btn--primary { background: var(--color-primary); border-color: var(--color-primary); color: var(--color-primary-ink); }
.btn--primary:hover { background: var(--color-primary-hover); border-color: var(--color-primary-hover); color: var(--color-primary-ink); }
.btn:disabled { opacity: 0.55; cursor: not-allowed; }
.btn--small { font-size: var(--text-sm); min-height: 2.25rem; padding: 6px 14px; }
.btn--ghost { border-color: transparent; background: transparent; }
.link-btn { border: 0; background: none; padding: 0; font: inherit; color: var(--color-link); text-decoration: underline; text-underline-offset: 0.15em; cursor: pointer; text-align: left; }
.link-btn:hover { color: var(--color-primary-hover); }
.btn-row { display: flex; flex-wrap: wrap; gap: var(--space-2); align-items: center; }

/* ---- Panels & KPI cards ---- */
.panel {
  background: var(--color-bg); border: 1px solid var(--color-border); border-radius: var(--radius-lg);
  padding: clamp(16px, 2.5vw, 24px); box-shadow: var(--shadow-sm); margin-bottom: var(--space-6);
}
.panel-head { display: flex; flex-wrap: wrap; align-items: baseline; justify-content: space-between; gap: var(--space-2) var(--space-4); margin-bottom: var(--space-3); }
.panel-head h2, .panel-head h3 { margin: 0; }
.panel-head .n { font-weight: 500; font-size: var(--text-sm); color: var(--color-text-muted); }
.kpis { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--space-3); margin-bottom: var(--space-6); }
@media (min-width: 720px) { .kpis { grid-template-columns: repeat(4, minmax(0, 1fr)); } }
.kpi { background: var(--color-bg); border: 1px solid var(--color-border); border-radius: var(--radius-lg); padding: var(--space-4); box-shadow: var(--shadow-sm); }
.kpi-label { margin: 0 0 4px; font-size: var(--text-sm); color: var(--color-text-muted); font-weight: 600; }
.kpi-value { margin: 0; font-size: clamp(1.6rem, 3vw, 2.1rem); font-weight: 700; color: var(--color-heading); line-height: 1.1; }
.kpi-sub { margin: 4px 0 0; font-size: var(--text-sm); color: var(--color-text-muted); }
.kpi--flag .kpi-value { color: var(--brand-amber-icon); }

/* ---- Chips (synonyms, condition terms) ---- */
.chips { display: flex; flex-wrap: wrap; gap: 6px; margin: var(--space-2) 0 0; padding: 0; list-style: none; }
.chip {
  display: inline-flex; align-items: center; gap: 6px; padding: 4px 10px 4px 6px; border-radius: var(--radius-pill);
  border: 1px solid var(--color-border-strong); background: var(--color-surface); font-size: var(--text-sm); color: var(--color-text);
}
.chip input { margin: 0; accent-color: var(--brand-teal); }
.chip.is-off { opacity: 0.55; text-decoration: line-through; }
.chip-type { font-size: 0.7rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.05em; color: var(--brand-teal-text); background: var(--brand-teal-tint); padding: 1px 6px; border-radius: var(--radius-pill); }
.chip-type--code { background: var(--brand-amber-tint); color: var(--brand-amber-text); }
.chip-type--brand { background: #ede9fe; color: #4c1d95; }
.chip button { border: 0; background: transparent; cursor: pointer; font: inherit; line-height: 1; padding: 2px 6px; border-radius: var(--radius-pill); color: var(--brand-teal-text); }
.chip button:hover { background: rgba(15, 118, 110, 0.15); }

/* ---- Badges ---- */
.badge { display: inline-block; padding: 2px 8px; border-radius: var(--radius-pill); font-size: 0.75rem; font-weight: 700; line-height: 1.5; white-space: nowrap; border: 1px solid transparent; }
.badge--neutral { background: var(--color-surface-2); color: var(--color-text-muted); }
.badge--good { background: var(--color-good-bg); color: var(--color-good-text); }
.badge--info { background: var(--color-info-bg); color: var(--color-info-text); }
.badge--warn { background: var(--color-warn-bg); color: var(--color-warn-text); }
.badge--danger { background: var(--color-danger-bg); color: var(--color-danger-text); }
.badge--accent { background: var(--brand-amber-tint); color: var(--brand-amber-text); border-color: #f3dca4; }
.badge--primary { background: var(--brand-teal-tint); color: var(--brand-teal-deep); }
.badge--outline { background: transparent; border-color: var(--color-border-strong); color: var(--color-text-muted); }

/* ---- Filters row ---- */
.filters { display: flex; flex-wrap: wrap; gap: var(--space-2) var(--space-3); align-items: end; margin-bottom: var(--space-3); }
.filters .field { margin: 0; display: flex; flex-direction: column; gap: 4px; }
.filters .field > label { margin: 0; }
.filters .check { display: inline-flex; align-items: center; gap: 6px; font-size: var(--text-sm); min-height: 2.25rem; }
.filters .check input { accent-color: var(--brand-teal); width: 16px; height: 16px; }

/* ---- Tables ---- */
.table-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; }
.table--wide { min-width: 1080px; }
table { border-collapse: collapse; width: 100%; font-size: var(--text-sm); }
th, td { text-align: left; padding: 9px var(--space-2); border-bottom: 1px solid var(--color-border); vertical-align: top; }
thead th { font-weight: 700; font-size: 0.72rem; letter-spacing: 0.06em; text-transform: uppercase; color: var(--brand-teal-text); border-bottom-width: 2px; white-space: nowrap; }
th.num, td.num { text-align: right; font-variant-numeric: tabular-nums; }
tbody tr:hover { background: var(--color-surface); }
tbody tr[data-key]:focus-within { background: var(--color-surface-2); }
.th-sort { border: 0; background: none; font: inherit; color: inherit; text-transform: inherit; letter-spacing: inherit; cursor: pointer; padding: 0; display: inline-flex; gap: 4px; align-items: center; }
.th-sort .sort-arrow { color: var(--color-border-strong); font-size: 0.7rem; }
.th-sort.is-sorted .sort-arrow, .th-sort:hover .sort-arrow { color: var(--brand-teal); }
.empty-cell { text-align: center; color: var(--color-text-muted); padding: var(--space-6); }
.pager { display: flex; flex-wrap: wrap; align-items: center; gap: var(--space-2) var(--space-3); margin-top: var(--space-3); }
.pager-info { font-size: var(--text-sm); color: var(--color-text-muted); }
td .title-cell { display: block; max-width: 34rem; }
td .sub { display: block; font-size: 0.8rem; color: var(--color-text-muted); }
.cell-nct { font-family: var(--font-mono); font-size: 0.8rem; white-space: nowrap; }
.details { margin: var(--space-2) 0 0; }
.details summary { cursor: pointer; color: var(--color-link); font-weight: 600; font-size: var(--text-sm); }
.details-body { margin-top: var(--space-2); padding: var(--space-3); border-radius: var(--radius); background: var(--color-surface-2); font-size: var(--text-sm); }
.why-list { margin: 0; padding: 0; list-style: none; display: grid; gap: 4px; }
.why-list li { display: grid; grid-template-columns: 8rem 4rem minmax(0, 1fr); gap: var(--space-2); align-items: baseline; }
.why-list .pts { font-variant-numeric: tabular-nums; font-weight: 700; color: var(--color-heading); }
@media (max-width: 560px) { .why-list li { grid-template-columns: 1fr; gap: 0; } }

/* ---- Study header ---- */
.study-head { display: grid; gap: var(--space-4); }
@media (min-width: 900px) { .study-head { grid-template-columns: minmax(0, 1fr) 320px; } }
.study-title { font-size: var(--text-xl); margin-bottom: var(--space-2); }
.meta-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: var(--space-2) var(--space-4); margin: 0; }
.meta-grid div { min-width: 0; }
.meta-grid dt { font-size: 0.72rem; font-weight: 700; letter-spacing: 0.06em; text-transform: uppercase; color: var(--brand-teal-text); margin-bottom: 2px; }
.meta-grid dd { margin: 0; font-size: var(--text-sm); overflow-wrap: anywhere; }
.flags { display: flex; flex-direction: column; gap: var(--space-2); }

/* ---- Settings (similarity) ---- */
.settings { display: grid; gap: var(--space-3); }
@media (min-width: 720px) { .settings { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (min-width: 1100px) { .settings { grid-template-columns: repeat(3, minmax(0, 1fr)); } }
.settings .field { margin: 0; }
.weights { display: grid; grid-template-columns: repeat(auto-fit, minmax(120px, 1fr)); gap: var(--space-2); }
.weights label { display: flex; flex-direction: column; gap: 2px; font-size: var(--text-sm); }
.weights input { width: 100%; min-height: 2.25rem; padding: 4px 8px; border-radius: 8px; border: 1px solid var(--color-border-strong); font: inherit; }
.settings-foot { grid-column: 1 / -1; display: flex; flex-wrap: wrap; gap: var(--space-2); align-items: center; }
.coverage { font-size: var(--text-sm); color: var(--color-text-muted); margin: var(--space-2) 0 0; }
.coverage ul { margin: 4px 0 0; padding-left: 1.2em; }

/* ---- Map ---- */
.map-plot { width: 100%; min-height: 420px; border-radius: var(--radius); overflow: hidden; background: var(--color-page); }
.map-note { margin: var(--space-2) 0 0; }
.map-legend { display: flex; flex-wrap: wrap; gap: var(--space-3); font-size: var(--text-sm); color: var(--color-text-muted); margin: 0 0 var(--space-2); }
.map-legend span { display: inline-flex; align-items: center; gap: 6px; }
.swatch { width: 12px; height: 12px; border-radius: 50%; display: inline-block; }
.swatch--primary { background: var(--series-primary); }
.swatch--accent { background: var(--series-accent); }
.swatch--muted { background: var(--series-muted); }

/* ---- Matrix ---- */
.matrix-wrap { max-height: 70vh; overflow: auto; border: 1px solid var(--color-border); border-radius: var(--radius); }
.matrix { border-collapse: separate; border-spacing: 0; min-width: 100%; }
.matrix th, .matrix td { border-bottom: 1px solid var(--color-border); }
.matrix thead th { position: sticky; top: 0; background: var(--color-bg); z-index: 2; vertical-align: bottom; }
.matrix tbody th { position: sticky; left: 0; background: var(--color-bg); z-index: 1; font-weight: 500; min-width: 18rem; max-width: 24rem; text-transform: none; letter-spacing: 0; border-right: 2px solid var(--color-border); }
.matrix thead th.matrix-corner { left: 0; z-index: 3; border-right: 2px solid var(--color-border); }
.matrix-col { min-width: 5.5rem; max-width: 7rem; text-transform: none; letter-spacing: 0; white-space: normal; }
.matrix-col-btn { display: flex; flex-direction: column; gap: 1px; font-size: 0.72rem; line-height: 1.25; text-decoration: none; color: var(--brand-teal-text); font-weight: 700; }
.matrix-col-sub { font-weight: 400; color: var(--color-text-muted); }
.matrix-nct { font-family: var(--font-mono); font-size: 0.78rem; }
.matrix-title { font-size: 0.8rem; color: var(--color-text-muted); }
.matrix-cell { text-align: center; padding: 4px; }
.matrix-cell.is-on { background: var(--viz-seq-100); }
.matrix-selected th, .matrix-selected td { background: var(--color-surface-2); }
.matrix-selected td.is-on { background: var(--viz-seq-300); }
.matrix-dot {
  width: 28px; height: 28px; border-radius: 6px; border: 0; background: var(--series-primary); cursor: pointer;
  display: inline-flex; align-items: center; justify-content: center; color: #fff; font-size: 0.7rem; font-weight: 700;
}
.matrix-dot:hover { background: var(--viz-seq-700); }
.matrix-legend { display: flex; flex-wrap: wrap; gap: var(--space-3); font-size: var(--text-sm); color: var(--color-text-muted); margin: var(--space-2) 0 0; }
.matrix-legend .matrix-dot { width: 18px; height: 18px; font-size: 0.6rem; cursor: default; }

/* ---- Site drawer ---- */
.drawer-backdrop { position: fixed; inset: 0; background: rgba(15, 23, 42, 0.45); z-index: 80; }
.drawer {
  position: fixed; top: 0; right: 0; bottom: 0; width: min(100%, 560px); z-index: 90; overflow-y: auto;
  background: var(--color-bg); box-shadow: -8px 0 32px rgba(19, 78, 74, 0.25); padding: clamp(16px, 3vw, 28px);
  display: flex; flex-direction: column; gap: var(--space-3);
}
.drawer-head { display: flex; align-items: flex-start; justify-content: space-between; gap: var(--space-3); }
.drawer-head h2 { margin: 0; font-size: var(--text-lg); }
.drawer-close { flex-shrink: 0; width: 40px; height: 40px; border-radius: 50%; border: 1px solid var(--color-border-strong); background: var(--color-bg); font-size: 1.2rem; cursor: pointer; }
.drawer-close:hover { background: var(--brand-teal-tint); }
.name-list { margin: 0; padding-left: 1.2em; font-size: var(--text-sm); }
.study-list { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: var(--space-2); }
.study-list li { padding: var(--space-2) var(--space-3); border: 1px solid var(--color-border); border-radius: var(--radius); font-size: var(--text-sm); }
.study-list .t { display: block; font-weight: 600; color: var(--color-heading); }
.study-list .s { display: block; color: var(--color-text-muted); }

/* ---- Welcome ---- */
.welcome { margin-bottom: var(--space-8); }
.welcome-grid { display: grid; gap: var(--space-3); margin-bottom: var(--space-3); }
@media (min-width: 720px) { .welcome-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
.welcome-card { background: var(--color-bg); border: 1px solid var(--color-border); border-radius: var(--radius-lg); padding: var(--space-4) var(--space-6); box-shadow: var(--shadow-sm); }
.welcome-card h3 { font-size: var(--text-base); }
.welcome-card p:last-child { margin: 0; }

/* ---- Methodology page ---- */
.prose { max-width: 62rem; }
.prose h2 { margin-top: var(--space-8); font-size: var(--text-xl); }
.prose h3 { margin-top: var(--space-6); }
.prose ul, .prose ol { padding-left: 1.4em; }
.prose li { margin-bottom: 6px; }
.prose table { margin: var(--space-3) 0 var(--space-4); }
.formula { padding: var(--space-3) var(--space-4); border-left: 4px solid var(--brand-teal); background: var(--color-bg); border-radius: 0 var(--radius) var(--radius) 0; margin: var(--space-3) 0; font-weight: 600; }
.is-loading { opacity: 0.55; pointer-events: none; }