/* ═══════════════════════════════════════════════════════════════════════
   AADR Globe Explorer — design system

   Dark-first. The globe is the document; every surface floats above it as a
   translucent glass plate. Nothing competes with the data for attention:
   chrome is low-contrast graphite, and the only saturated colour on screen
   belongs to the points, the period ramp and a single amber accent.
   ═══════════════════════════════════════════════════════════════════════ */

:root {
  /* Surfaces */
  --void:        #04060a;
  --deep:        #070a11;
  --glass:       rgba(17, 22, 32, 0.66);
  --glass-hi:    rgba(30, 38, 52, 0.72);
  --glass-line:  rgba(255, 255, 255, 0.085);
  --glass-line2: rgba(255, 255, 255, 0.045);

  /* Ink */
  --ink:      #eef2f8;
  --ink-2:    #a8b3c4;
  --ink-3:    #6e7a8d;
  --ink-4:    #48525f;

  /* Accents */
  --amber:    #f0b429;
  --amber-dim:#8a6716;
  --cyan:     #3ec9d6;
  --rose:     #e2657f;
  --green:    #4ec9a0;

  /* Period ramp — cool (deep past) to warm (recent) to grey (living) */
  --p-mpal:   #7856c9;
  --p-upal:   #4c72d8;
  --p-meso:   #2f9bd4;
  --p-neo:    #23ab86;
  --p-chal:   #86bb3a;
  --p-bronze: #e3ab2b;
  --p-iron:   #e5762c;
  --p-class:  #d8483f;
  --p-med:    #c44079;
  --p-post:   #9c6b52;
  --p-now:    #8792a3;

  /* Geometry */
  --r-sm: 8px;
  --r:    14px;
  --r-lg: 20px;
  --rail-w: 316px;
  --detail-w: 396px;
  --top-h: 58px;
  --tl-h: 92px;
  --gap: 14px;

  /* Edge insets. Every viewport-anchored surface uses these rather than
     --gap directly, so a notch, a home indicator or a landscape cutout
     pushes the whole chrome inward. env() resolves to 0px on desktop, so
     these are identity there. --below-top and --above-tl are the two
     interior anchors: the space under the top bar and above the timeline. */
  --gap-t: calc(var(--gap) + env(safe-area-inset-top, 0px));
  --gap-b: calc(var(--gap) + env(safe-area-inset-bottom, 0px));
  --gap-l: calc(var(--gap) + env(safe-area-inset-left, 0px));
  --gap-r: calc(var(--gap) + env(safe-area-inset-right, 0px));
  --below-top: calc(var(--gap) + var(--gap-t) + var(--top-h));
  --above-tl:  calc(var(--gap) + var(--gap-b) + var(--tl-h));

  --blur: saturate(165%) blur(26px);
  --shadow: 0 18px 48px -12px rgba(0, 0, 0, 0.72),
            0 2px 10px -2px rgba(0, 0, 0, 0.5);
  --ease: cubic-bezier(0.22, 0.61, 0.29, 1);
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);

  --font: -apple-system, BlinkMacSystemFont, "Segoe UI Variable Display",
          "Segoe UI", Inter, Roboto, system-ui, sans-serif;
  --mono: "SF Mono", ui-monospace, "Cascadia Mono", "JetBrains Mono",
          Consolas, monospace;
}

/* ── reset ─────────────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; }
html, body { height: 100%; }

/* Every panel, popover, sheet and badge in this app is shown and hidden by
   toggling the `hidden` attribute. The browser implements that as a UA rule,
   `[hidden] { display: none }`, and ANY author `display` declaration beats a
   UA one regardless of specificity — so `.panel { display: flex }` silently
   re-shows a hidden panel. `#about` is the worst case: a fixed inset-0 scrim
   that swallows every click on the page. Restate the rule at author level. */
[hidden] { display: none !important; }
body {
  margin: 0;
  font-family: var(--font);
  font-size: 14px;
  line-height: 1.5;
  color: var(--ink);
  background: var(--void);
  overflow: hidden;
  overscroll-behavior: none;
  /* manipulation kills the 300ms double-tap-to-zoom delay without disabling
     pinch-zoom on the page as a whole; the globe opts out of gestures
     entirely below so deck.gl receives them instead of the browser. */
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
h1, h2, h3, h4, p { margin: 0; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }
input, select { font: inherit; color: inherit; }
svg { width: 100%; height: 100%; fill: none; stroke: currentColor;
      stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; }
:focus-visible { outline: 2px solid var(--amber); outline-offset: 2px; border-radius: 4px; }
::selection { background: rgba(240, 180, 41, 0.28); }

/* ── scrollbars ────────────────────────────────────────────────────────── */
.panel-body, .pop-body, .sheet-body, #search-results, .cmp-body { scrollbar-width: thin;
  scrollbar-color: rgba(255,255,255,.14) transparent; }
.panel-body::-webkit-scrollbar, .pop-body::-webkit-scrollbar,
.sheet-body::-webkit-scrollbar, #search-results::-webkit-scrollbar,
.cmp-body::-webkit-scrollbar { width: 9px; height: 9px; }
.panel-body::-webkit-scrollbar-thumb, .pop-body::-webkit-scrollbar-thumb,
.sheet-body::-webkit-scrollbar-thumb, #search-results::-webkit-scrollbar-thumb,
.cmp-body::-webkit-scrollbar-thumb {
  background: rgba(255,255,255,.13); border-radius: 99px;
  border: 2px solid transparent; background-clip: content-box; }
.panel-body::-webkit-scrollbar-thumb:hover { background: rgba(255,255,255,.24);
  background-clip: content-box; }

/* ── background layers ─────────────────────────────────────────────────── */
#starfield { position: fixed; inset: 0; width: 100%; height: 100%; z-index: 0;
  background: radial-gradient(ellipse 130% 90% at 50% 6%, #0d1524 0%,
              #070b13 42%, var(--void) 100%); }
#vignette {
  position: fixed; inset: 0; z-index: 2; pointer-events: none;
  background:
    radial-gradient(ellipse 62% 62% at 50% 48%, transparent 52%, rgba(3,5,9,.62) 100%),
    radial-gradient(circle at 22% 14%, rgba(62,201,214,.055), transparent 46%),
    radial-gradient(circle at 82% 82%, rgba(240,180,41,.045), transparent 46%);
}
#globe-host { position: fixed; inset: 0; z-index: 1; touch-action: none; }
#deck-canvas { position: absolute; inset: 0; width: 100%; height: 100%;
  display: block; touch-action: none; }

/* ── glass primitive ───────────────────────────────────────────────────── */
.glass {
  background: var(--glass);
  -webkit-backdrop-filter: var(--blur);
  backdrop-filter: var(--blur);
  border: 1px solid var(--glass-line);
  box-shadow: var(--shadow), inset 0 1px 0 rgba(255,255,255,.055);
  border-radius: var(--r);
}
/* Fallback for engines without backdrop-filter: opaque enough to stay legible. */
@supports not ((backdrop-filter: blur(1px)) or (-webkit-backdrop-filter: blur(1px))) {
  .glass { background: rgba(11, 15, 23, 0.95); }
}

/* ══ Boot screen ═══════════════════════════════════════════════════════ */
#boot {
  position: fixed; inset: 0; z-index: 100; display: grid; place-items: center;
  background: radial-gradient(ellipse at 50% 40%, #0b1220, var(--void) 72%);
  transition: opacity .7s var(--ease), visibility .7s;
}
#boot.done { opacity: 0; visibility: hidden; pointer-events: none; }
.boot-inner { text-align: center; max-width: 440px; padding: 0 28px; }
.boot-mark { width: 74px; height: 74px; margin: 0 auto 26px; color: var(--amber); }
.boot-mark svg { stroke-width: 1.3; overflow: visible; }
.bm-o { stroke-dasharray: 164; stroke-dashoffset: 164;
  animation: draw 1.5s var(--ease-out) forwards; }
.bm-e { stroke-dasharray: 120; stroke-dashoffset: 120; opacity: .75;
  animation: draw 1.5s .22s var(--ease-out) forwards; }
.bm-l { stroke-dasharray: 104; stroke-dashoffset: 104; opacity: .55;
  animation: draw 1.4s .42s var(--ease-out) forwards; }
@keyframes draw { to { stroke-dashoffset: 0; } }
.boot-title { font-size: 27px; font-weight: 600; letter-spacing: -.024em;
  margin-bottom: 8px; }
.boot-sub { color: var(--ink-3); font-size: 13.5px; margin-bottom: 30px;
  letter-spacing: .006em; }
.boot-bar { height: 2px; background: rgba(255,255,255,.09); border-radius: 2px;
  overflow: hidden; }
.boot-bar i { display: block; height: 100%; width: 0%; border-radius: 2px;
  background: linear-gradient(90deg, var(--amber-dim), var(--amber));
  transition: width .45s var(--ease); }
.boot-step { margin-top: 14px; font-size: 12px; color: var(--ink-4);
  font-variant-numeric: tabular-nums; min-height: 1.4em; }
.boot-err { margin-top: 16px; font-size: 12.5px; color: var(--rose);
  line-height: 1.6; text-align: left;
  background: rgba(226,101,127,.09); border: 1px solid rgba(226,101,127,.25);
  border-radius: var(--r-sm); padding: 12px 14px; }

/* ══ Top bar ═══════════════════════════════════════════════════════════ */
#topbar {
  position: fixed; z-index: 40; top: var(--gap-t); left: var(--gap-l);
  right: var(--gap-r); height: var(--top-h); border-radius: var(--r);
  display: flex; align-items: center; gap: 14px; padding: 0 12px 0 14px;
}
/* Back to the rest of the site. The atlas is standalone — it injects none of
   Hominin History's nav or footer, because a 100dvh globe cannot share a
   page with a scrolling header — so this link is the only way out. */
#site-back { display: flex; align-items: center; gap: 6px; flex: 0 0 auto;
  padding: 6px 9px 6px 6px; border-radius: var(--r-sm); text-decoration: none;
  color: var(--ink-3); font-size: 12.5px; white-space: nowrap;
  transition: background .18s var(--ease), color .18s var(--ease); }
#site-back svg { width: 15px; height: 15px; flex: 0 0 auto; }
#site-back:hover { background: rgba(255,255,255,.06); color: var(--ink); }

.brand { display: flex; align-items: center; gap: 10px; padding: 6px 8px;
  border-radius: var(--r-sm); flex: 0 0 auto;
  transition: background .18s var(--ease); }
.brand:hover { background: rgba(255,255,255,.06); }
.brand svg { width: 22px; height: 22px; color: var(--amber); stroke-width: 1.5; }
.brand-text { font-size: 14px; letter-spacing: -.012em; color: var(--ink-2);
  white-space: nowrap; }
.brand-text b { color: var(--ink); font-weight: 650; letter-spacing: .01em; }

.search-wrap { position: relative; flex: 1 1 auto; max-width: 560px; }
.search-icon { position: absolute; left: 12px; top: 50%; width: 15px; height: 15px;
  transform: translateY(-50%); color: var(--ink-4); pointer-events: none; }
#search {
  width: 100%; height: 36px; padding: 0 40px 0 35px; border-radius: 10px;
  background: rgba(255,255,255,.045); border: 1px solid var(--glass-line2);
  font-size: 13.5px; letter-spacing: -.004em;
  transition: background .2s var(--ease), border-color .2s var(--ease),
              box-shadow .2s var(--ease);
}
#search::placeholder { color: var(--ink-4); }
#search::-webkit-search-cancel-button { display: none; }
#search:focus { outline: none; background: rgba(255,255,255,.075);
  border-color: rgba(240,180,41,.4);
  box-shadow: 0 0 0 3px rgba(240,180,41,.1); }
.search-kbd { position: absolute; right: 10px; top: 50%; transform: translateY(-50%);
  font: 600 10.5px/1 var(--mono); color: var(--ink-4); padding: 4px 6px;
  border: 1px solid var(--glass-line); border-radius: 5px;
  background: rgba(255,255,255,.035); pointer-events: none; }
#search:focus ~ .search-kbd { opacity: 0; }

#search-results {
  position: absolute; top: calc(100% + 8px); left: 0; right: 0; z-index: 50;
  max-height: min(62vh, 520px); overflow-y: auto; padding: 6px;
  border-radius: var(--r); animation: pop .2s var(--ease-out);
}
@keyframes pop { from { opacity: 0; transform: translateY(-7px) scale(.985); } }
.sr-group { padding: 9px 10px 4px; font-size: 10.5px; font-weight: 650;
  letter-spacing: .075em; text-transform: uppercase; color: var(--ink-4); }
.sr-item { display: flex; align-items: center; gap: 11px; padding: 8px 10px;
  border-radius: 9px; cursor: pointer; transition: background .12s var(--ease); }
.sr-item:hover, .sr-item.is-on { background: rgba(255,255,255,.075); }
.sr-dot { width: 8px; height: 8px; border-radius: 50%; flex: 0 0 auto;
  box-shadow: 0 0 9px currentColor; }
.sr-main { flex: 1 1 auto; min-width: 0; }
.sr-name { font-size: 13px; white-space: nowrap; overflow: hidden;
  text-overflow: ellipsis; }
.sr-name mark { background: rgba(240,180,41,.24); color: var(--amber);
  border-radius: 3px; padding: 0 1px; }
.sr-meta { font-size: 11.5px; color: var(--ink-3); white-space: nowrap;
  overflow: hidden; text-overflow: ellipsis; }
.sr-tag { font-size: 10.5px; color: var(--ink-4); padding: 3px 7px;
  border: 1px solid var(--glass-line); border-radius: 99px; flex: 0 0 auto; }
.sr-empty { padding: 26px 16px; text-align: center; color: var(--ink-4);
  font-size: 12.5px; }

.topbar-actions { display: flex; align-items: center; gap: 6px; flex: 0 0 auto; }
.pill { display: flex; align-items: baseline; gap: 5px; padding: 5px 11px;
  border-radius: 99px; background: rgba(255,255,255,.05);
  border: 1px solid var(--glass-line2); white-space: nowrap; }
.pill b { font-size: 13.5px; font-weight: 620; font-variant-numeric: tabular-nums;
  letter-spacing: -.01em; }
.pill-sub { font-size: 11px; color: var(--ink-4); }

.icon-btn { width: 34px; height: 34px; border-radius: 9px; display: grid;
  place-items: center; color: var(--ink-2); flex: 0 0 auto;
  transition: background .16s var(--ease), color .16s var(--ease),
              transform .16s var(--ease); }
.icon-btn svg { width: 17px; height: 17px; }
.icon-btn:hover { background: rgba(255,255,255,.085); color: var(--ink); }
.icon-btn:active { transform: scale(.93); }
.icon-btn.is-on { background: rgba(240,180,41,.16); color: var(--amber); }
.icon-btn.sm { width: 28px; height: 28px; border-radius: 7px; }
.icon-btn.sm svg { width: 14px; height: 14px; }
.icon-btn.glass { border-radius: 10px; }

.text-btn { font-size: 12px; color: var(--ink-3); padding: 4px 8px;
  border-radius: 6px; transition: color .15s, background .15s; }
.text-btn:hover { color: var(--amber); background: rgba(240,180,41,.09); }

.btn { padding: 8px 16px; border-radius: 9px; font-size: 12.5px; font-weight: 550;
  background: var(--amber); color: #150e00; letter-spacing: -.005em;
  transition: filter .16s var(--ease), transform .16s var(--ease); }
.btn:hover { filter: brightness(1.1); }
.btn:active { transform: scale(.97); }
.btn.ghost { background: rgba(255,255,255,.07); color: var(--ink-2); }
.btn.ghost:hover { background: rgba(255,255,255,.12); color: var(--ink); }
.btn:disabled { opacity: .35; pointer-events: none; }

/* ══ Panels ════════════════════════════════════════════════════════════ */
.panel { position: fixed; z-index: 35; display: flex; flex-direction: column;
  overflow: hidden; }
#rail { top: var(--below-top); left: var(--gap);
  width: var(--rail-w); bottom: var(--above-tl);
  animation: slide-l .5s var(--ease-out) both; }
#detail { top: var(--below-top); right: var(--gap);
  width: var(--detail-w); bottom: var(--above-tl);
  animation: slide-r .42s var(--ease-out) both; }
#charts { top: var(--below-top); right: var(--gap);
  width: min(560px, calc(100vw - var(--gap) * 2));
  bottom: var(--above-tl);
  animation: slide-r .42s var(--ease-out) both; }
#detail:not([hidden]) ~ #charts { right: calc(var(--detail-w) + var(--gap) * 2); }
@keyframes slide-l { from { opacity: 0; transform: translateX(-22px); } }
@keyframes slide-r { from { opacity: 0; transform: translateX(22px); } }

.panel-head { display: flex; align-items: flex-start; justify-content: space-between;
  gap: 10px; padding: 14px 14px 12px; border-bottom: 1px solid var(--glass-line2);
  flex: 0 0 auto; }
.panel-head h2 { font-size: 14.5px; font-weight: 600; letter-spacing: -.014em; }
.panel-head-actions { display: flex; gap: 3px; align-items: center; flex: 0 0 auto; }
.detail-head-text { min-width: 0; }
.detail-head-text h2 { white-space: nowrap; overflow: hidden;
  text-overflow: ellipsis; font-family: var(--mono); font-size: 14px; }
.detail-head-text p { font-size: 11.5px; color: var(--ink-3); margin-top: 3px;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.panel-body { flex: 1 1 auto; overflow-y: auto; overflow-x: hidden;
  padding: 12px 14px 20px; }
.panel-foot { flex: 0 0 auto; display: flex; gap: 18px; padding: 10px 14px;
  border-top: 1px solid var(--glass-line2); background: rgba(0,0,0,.16); }
.foot-stat { font-size: 11px; color: var(--ink-4); }
.foot-stat b { color: var(--ink-2); font-size: 12.5px; font-weight: 600;
  font-variant-numeric: tabular-nums; margin-right: 3px; }

/* ── filter groups ─────────────────────────────────────────────────────── */
.fgroup { border-bottom: 1px solid var(--glass-line2); }
.fgroup:last-child { border-bottom: 0; }
.fg-head { display: flex; align-items: center; gap: 8px; width: 100%;
  padding: 11px 2px; text-align: left; }
.fg-head:hover .fg-title { color: var(--ink); }
.fg-title { flex: 1 1 auto; font-size: 12px; font-weight: 560; color: var(--ink-2);
  letter-spacing: -.004em; transition: color .15s; }
.fg-count { font-size: 10.5px; color: #150e00; background: var(--amber);
  padding: 1.5px 6px; border-radius: 99px; font-weight: 650;
  font-variant-numeric: tabular-nums; }
.fg-chev { width: 13px; height: 13px; color: var(--ink-4);
  transition: transform .24s var(--ease); }
.fgroup.open .fg-chev { transform: rotate(180deg); }
.fg-body { display: none; padding: 2px 0 14px; }
.fgroup.open .fg-body { display: block; animation: fade-in .26s var(--ease-out); }
@keyframes fade-in { from { opacity: 0; transform: translateY(-5px); } }

.fg-search { width: 100%; height: 29px; margin-bottom: 8px; padding: 0 10px;
  border-radius: 7px; font-size: 12px;
  background: rgba(255,255,255,.045); border: 1px solid var(--glass-line2); }
.fg-search:focus { outline: none; border-color: rgba(240,180,41,.35);
  background: rgba(255,255,255,.07); }
.fg-list { max-height: 216px; overflow-y: auto; margin: 0 -4px; padding: 0 4px; }

.opt { display: flex; align-items: center; gap: 9px; padding: 5px 7px;
  border-radius: 7px; cursor: pointer; user-select: none;
  transition: background .12s var(--ease); }
.opt:hover { background: rgba(255,255,255,.055); }
.opt input { position: absolute; opacity: 0; pointer-events: none; }
.opt-box { width: 15px; height: 15px; border-radius: 4.5px; flex: 0 0 auto;
  border: 1.5px solid rgba(255,255,255,.22); display: grid; place-items: center;
  transition: background .16s var(--ease), border-color .16s var(--ease); }
.opt-box svg { width: 9px; height: 9px; stroke-width: 3; color: #150e00;
  opacity: 0; transform: scale(.5); transition: opacity .16s, transform .16s var(--ease-out); }
.opt input:checked + .opt-box { background: var(--amber); border-color: var(--amber); }
.opt input:checked + .opt-box svg { opacity: 1; transform: scale(1); }
.opt input:focus-visible + .opt-box { outline: 2px solid var(--amber);
  outline-offset: 2px; }
.opt-swatch { width: 9px; height: 9px; border-radius: 50%; flex: 0 0 auto; }
.opt-label { flex: 1 1 auto; font-size: 12.2px; color: var(--ink-2);
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.opt input:checked ~ .opt-label { color: var(--ink); }
.opt-n { font-size: 10.5px; color: var(--ink-4); font-variant-numeric: tabular-nums;
  flex: 0 0 auto; }
.opt.is-zero { opacity: .34; }

/* range filters */
.frange { padding: 4px 2px 2px; }
.frange-top { display: flex; justify-content: space-between; font-size: 11.5px;
  color: var(--ink-3); margin-bottom: 9px; font-variant-numeric: tabular-nums; }
.frange-top b { color: var(--ink-2); font-weight: 560; }
.dual { position: relative; height: 22px; }
.dual-track { position: absolute; top: 9px; left: 0; right: 0; height: 3px;
  background: rgba(255,255,255,.1); border-radius: 3px; }
.dual-fill { position: absolute; top: 9px; height: 3px; border-radius: 3px;
  background: linear-gradient(90deg, var(--amber-dim), var(--amber)); }
.dual input { position: absolute; top: 0; left: 0; width: 100%; height: 22px;
  margin: 0; background: none; pointer-events: none; -webkit-appearance: none;
  appearance: none; }
.dual input::-webkit-slider-thumb { -webkit-appearance: none; pointer-events: auto;
  width: 15px; height: 15px; border-radius: 50%; background: #fff;
  border: 2px solid var(--amber); cursor: grab;
  box-shadow: 0 2px 7px rgba(0,0,0,.55); transition: transform .14s var(--ease); }
.dual input::-webkit-slider-thumb:hover { transform: scale(1.18); }
.dual input::-webkit-slider-thumb:active { cursor: grabbing; transform: scale(1.05); }
.dual input::-moz-range-thumb { pointer-events: auto; width: 13px; height: 13px;
  border-radius: 50%; background: #fff; border: 2px solid var(--amber);
  cursor: grab; box-shadow: 0 2px 7px rgba(0,0,0,.55); }
.dual input::-moz-range-track { background: none; }

.seg { display: flex; gap: 3px; padding: 3px; border-radius: 9px;
  background: rgba(255,255,255,.045); }
.seg button { flex: 1 1 0; padding: 6px 4px; border-radius: 6.5px; font-size: 11.5px;
  color: var(--ink-3); transition: background .16s var(--ease), color .16s var(--ease); }
.seg button:hover { color: var(--ink-2); }
.seg button.is-on { background: rgba(255,255,255,.11); color: var(--ink);
  box-shadow: 0 1px 3px rgba(0,0,0,.3); }

.fnote { font-size: 10.5px; color: var(--ink-4); line-height: 1.55; margin-top: 8px;
  padding-left: 8px; border-left: 2px solid var(--glass-line); }

/* ══ Detail panel content ══════════════════════════════════════════════ */
.d-hero { margin: -12px -14px 14px; padding: 18px 14px 15px; position: relative;
  overflow: hidden; border-bottom: 1px solid var(--glass-line2); }
.d-hero::before { content: ""; position: absolute; inset: 0; opacity: .2;
  background: radial-gradient(ellipse 74% 116% at 22% 0%,
              var(--hero, var(--amber)), transparent 70%); }
.d-hero > * { position: relative; }
.d-chips { display: flex; flex-wrap: wrap; gap: 5px; }
.chip { font-size: 10.5px; padding: 3.5px 9px; border-radius: 99px;
  background: rgba(255,255,255,.075); border: 1px solid var(--glass-line);
  color: var(--ink-2); white-space: nowrap; }
.chip.accent { background: rgba(240,180,41,.15); border-color: rgba(240,180,41,.3);
  color: var(--amber); }
.chip.warn { background: rgba(226,101,127,.14); border-color: rgba(226,101,127,.3);
  color: var(--rose); }
.chip.good { background: rgba(78,201,160,.13); border-color: rgba(78,201,160,.28);
  color: var(--green); }
.chip.dot::before { content: ""; display: inline-block; width: 6px; height: 6px;
  border-radius: 50%; background: currentColor; margin-right: 6px;
  vertical-align: 1px; }

.d-date { font-size: 22px; font-weight: 300; letter-spacing: -.028em;
  margin: 12px 0 2px; font-variant-numeric: tabular-nums; }
.d-date small { font-size: 12.5px; color: var(--ink-3); font-weight: 400;
  letter-spacing: 0; margin-left: 6px; }
.d-place { font-size: 12.5px; color: var(--ink-2); }

.sec { margin-top: 20px; }
.sec-h { display: flex; align-items: center; gap: 8px; margin-bottom: 10px; }
.sec-h h3 { font-size: 10.5px; font-weight: 650; letter-spacing: .085em;
  text-transform: uppercase; color: var(--ink-4); }
.sec-h::after { content: ""; flex: 1 1 auto; height: 1px;
  background: var(--glass-line2); }

.kv { display: grid; grid-template-columns: minmax(96px, 40%) 1fr; gap: 7px 12px;
  font-size: 12.3px; }
.kv dt { color: var(--ink-4); }
.kv dd { margin: 0; color: var(--ink-2); word-break: break-word; }
.kv dd.mono { font-family: var(--mono); font-size: 11.5px; }
.kv dd b { color: var(--ink); font-weight: 560; }

.metrics { display: grid; grid-template-columns: repeat(auto-fit, minmax(84px, 1fr));
  gap: 7px; }
.metric { padding: 10px 11px; border-radius: 10px; background: rgba(255,255,255,.04);
  border: 1px solid var(--glass-line2); }
.metric-v { font-size: 16px; font-weight: 550; letter-spacing: -.022em;
  font-variant-numeric: tabular-nums; }
.metric-v small { font-size: 10.5px; color: var(--ink-4); font-weight: 400;
  margin-left: 2px; }
.metric-k { font-size: 10px; color: var(--ink-4); margin-top: 2px;
  letter-spacing: .022em; }

.bar-row { display: flex; align-items: center; gap: 9px; margin-bottom: 7px;
  font-size: 11.5px; }
.bar-label { width: 84px; flex: 0 0 auto; color: var(--ink-3); text-align: right;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.bar-outer { flex: 1 1 auto; height: 6px; border-radius: 3px;
  background: rgba(255,255,255,.06); overflow: hidden; }
.bar-inner { height: 100%; border-radius: 3px; width: 0;
  transition: width .55s var(--ease-out); }
.bar-n { width: 40px; flex: 0 0 auto; text-align: right; color: var(--ink-4);
  font-variant-numeric: tabular-nums; }

.link-list { display: flex; flex-wrap: wrap; gap: 6px; }
.lnk { display: inline-flex; align-items: center; gap: 5px; font-size: 11.5px;
  padding: 6px 11px; border-radius: 8px; color: var(--ink-2); text-decoration: none;
  background: rgba(255,255,255,.05); border: 1px solid var(--glass-line);
  transition: background .16s var(--ease), color .16s var(--ease),
              transform .16s var(--ease); }
.lnk:hover { background: rgba(240,180,41,.13); border-color: rgba(240,180,41,.3);
  color: var(--amber); transform: translateY(-1px); }
.lnk svg { width: 11px; height: 11px; opacity: .65; }

.paper { padding: 12px; border-radius: 10px; background: rgba(255,255,255,.035);
  border: 1px solid var(--glass-line2); }
.paper-t { font-size: 12.8px; line-height: 1.45; color: var(--ink);
  margin-bottom: 5px; }
.paper-m { font-size: 11.3px; color: var(--ink-3); }
.paper-m i { font-style: normal; color: var(--ink-2); }

.callout { font-size: 11.3px; line-height: 1.6; color: var(--ink-3);
  padding: 10px 12px; border-radius: 9px; background: rgba(255,255,255,.03);
  border: 1px solid var(--glass-line2); border-left: 2px solid var(--ink-4); }
.callout.warn { border-left-color: var(--rose);
  background: rgba(226,101,127,.055); }
.callout.info { border-left-color: var(--cyan);
  background: rgba(62,201,214,.05); }
.callout b { color: var(--ink-2); font-weight: 560; }

.src-tag { font-size: 9.5px; padding: 1px 5px; border-radius: 4px; margin-left: 6px;
  background: rgba(255,255,255,.06); color: var(--ink-4); vertical-align: 1px;
  letter-spacing: .02em; }

/* chromosome / karyotype strip */
.karyo { display: flex; flex-direction: column; gap: 3px; }
.karyo-row { display: flex; align-items: center; gap: 7px; }
.karyo-lab { width: 18px; font-size: 9px; color: var(--ink-4); text-align: right;
  flex: 0 0 auto; font-variant-numeric: tabular-nums; }
.karyo-bar { flex: 1 1 auto; height: 7px; border-radius: 3.5px;
  background: rgba(255,255,255,.055); position: relative; overflow: hidden; }
.karyo-fill { position: absolute; inset: 0; border-radius: 3.5px;
  transform-origin: left; }

/* individual list inside a site panel */
.ind-row { display: flex; align-items: center; gap: 9px; padding: 7px 8px;
  border-radius: 8px; cursor: pointer; transition: background .12s var(--ease); }
.ind-row:hover { background: rgba(255,255,255,.06); }
.ind-dot { width: 7px; height: 7px; border-radius: 50%; flex: 0 0 auto; }
.ind-id { flex: 1 1 auto; font-family: var(--mono); font-size: 11.2px;
  color: var(--ink-2); white-space: nowrap; overflow: hidden;
  text-overflow: ellipsis; }
.ind-meta { font-size: 10.5px; color: var(--ink-4); flex: 0 0 auto;
  font-variant-numeric: tabular-nums; }

/* ══ Charts ════════════════════════════════════════════════════════════ */
.tabs { display: flex; gap: 2px; padding: 8px 10px; overflow-x: auto;
  border-bottom: 1px solid var(--glass-line2); flex: 0 0 auto;
  scrollbar-width: none; }
.tabs::-webkit-scrollbar { display: none; }
.tab { padding: 6px 11px; border-radius: 7px; font-size: 12px; color: var(--ink-4);
  white-space: nowrap; transition: background .15s, color .15s; }
.tab:hover { color: var(--ink-2); background: rgba(255,255,255,.05); }
.tab.is-on { background: rgba(255,255,255,.1); color: var(--ink); }

.chart-card { margin-bottom: 18px; }
.chart-head { display: flex; align-items: baseline; justify-content: space-between;
  gap: 10px; margin-bottom: 3px; }
.chart-title { font-size: 12.5px; font-weight: 560; color: var(--ink-2); }
.chart-note { font-size: 10.5px; color: var(--ink-4); }
.chart-sub { font-size: 10.8px; color: var(--ink-4); margin-bottom: 9px;
  line-height: 1.5; }
.chart-svg { width: 100%; display: block; overflow: visible; }
.chart-svg text { font-family: var(--font); fill: var(--ink-4); font-size: 9.5px; }
.chart-svg .ax { stroke: var(--glass-line); stroke-width: 1; }
.chart-svg .grid { stroke: rgba(255,255,255,.05); stroke-width: 1; }
.chart-svg .bar { transition: opacity .15s; }
.chart-svg .bar:hover { opacity: .72; }
.chart-svg .pt { transition: r .15s var(--ease); }

.empty { padding: 40px 20px; text-align: center; color: var(--ink-4);
  font-size: 12.5px; line-height: 1.7; }
.empty svg { width: 34px; height: 34px; margin: 0 auto 12px; opacity: .3;
  display: block; }

/* skeleton loaders */
.skel { border-radius: 8px; background: linear-gradient(90deg,
  rgba(255,255,255,.045) 25%, rgba(255,255,255,.085) 50%,
  rgba(255,255,255,.045) 75%); background-size: 220% 100%;
  animation: shimmer 1.5s ease-in-out infinite; }
@keyframes shimmer { to { background-position: -220% 0; } }
.skel-line { height: 11px; margin-bottom: 9px; }

/* ══ Popovers ══════════════════════════════════════════════════════════ */
.popover { position: fixed; z-index: 45; top: var(--below-top);
  right: var(--gap-r); width: 288px;
  max-height: calc(100vh - 200px); max-height: calc(100dvh - 200px);
  display: flex; flex-direction: column; overflow: hidden;
  animation: pop .24s var(--ease-out); }
.popover.wide { width: min(560px, calc(100vw - var(--gap) * 2));
  left: 50%; right: auto; transform: translateX(-50%); top: 96px; }
.pop-head { display: flex; align-items: center; justify-content: space-between;
  padding: 13px 14px 11px; border-bottom: 1px solid var(--glass-line2); }
.pop-head h3 { font-size: 13px; font-weight: 600; letter-spacing: -.012em; }
.pop-body { padding: 10px 12px 14px; overflow-y: auto; }

.lrow { display: flex; align-items: center; gap: 10px; padding: 8px 8px;
  border-radius: 8px; cursor: pointer; transition: background .13s var(--ease); }
.lrow:hover { background: rgba(255,255,255,.055); }
.lrow-t { flex: 1 1 auto; min-width: 0; }
.lrow-t b { display: block; font-size: 12.3px; font-weight: 450; color: var(--ink-2); }
.lrow-t span { display: block; font-size: 10.5px; color: var(--ink-4);
  margin-top: 1px; line-height: 1.4; }
.lrow input { position: absolute; opacity: 0; pointer-events: none; }

.switch { width: 34px; height: 20px; border-radius: 99px; flex: 0 0 auto;
  background: rgba(255,255,255,.13); position: relative;
  transition: background .22s var(--ease); }
.switch::after { content: ""; position: absolute; top: 2.5px; left: 2.5px;
  width: 15px; height: 15px; border-radius: 50%; background: #fff;
  box-shadow: 0 1px 3px rgba(0,0,0,.45);
  transition: transform .22s var(--ease); }
input:checked + .switch { background: var(--amber); }
input:checked + .switch::after { transform: translateX(14px); }

.lgroup-h { font-size: 10px; font-weight: 650; letter-spacing: .08em;
  text-transform: uppercase; color: var(--ink-4); padding: 12px 8px 5px; }
.lgroup-h:first-child { padding-top: 2px; }

/* ══ Timeline ══════════════════════════════════════════════════════════ */
#timeline { position: fixed; z-index: 38; left: var(--gap-l); right: var(--gap-r);
  bottom: var(--gap-b); height: var(--tl-h); border-radius: var(--r);
  display: flex; align-items: center; gap: 16px; padding: 12px 18px;
  animation: slide-u .5s var(--ease-out) both; }
@keyframes slide-u { from { opacity: 0; transform: translateY(22px); } }
.tl-left { display: flex; align-items: center; gap: 11px; flex: 0 0 auto;
  width: 208px; }
.tl-readout b { display: block; font-size: 12.5px; font-weight: 550;
  letter-spacing: -.008em; font-variant-numeric: tabular-nums; }
.tl-readout span { display: block; font-size: 10.5px; color: var(--ink-4);
  margin-top: 1px; font-variant-numeric: tabular-nums; }

/* touch-action:none is what actually lets a finger drag the handles: without
   it the browser claims the vertical component of the gesture for scrolling
   and the drag dies after a few pixels. preventDefault() cannot substitute,
   because the decision is made before the event is dispatched. */
.tl-track-wrap { flex: 1 1 auto; position: relative; height: 100%;
  display: flex; flex-direction: column; justify-content: center;
  touch-action: none; }
#tl-density { position: absolute; left: 0; right: 0; top: 8px; height: 32px;
  width: 100%; pointer-events: none; }
.tl-track { position: relative; height: 22px; margin-top: 34px; cursor: pointer; }
.tl-track::before { content: ""; position: absolute; top: 9.5px; left: 0; right: 0;
  height: 3px; border-radius: 3px; background: rgba(255,255,255,.09); }
.tl-fill { position: absolute; top: 9.5px; height: 3px; border-radius: 3px;
  background: linear-gradient(90deg, var(--p-upal), var(--p-neo),
              var(--p-bronze), var(--p-med)); }
.tl-handle { position: absolute; top: 4px; width: 14px; height: 14px;
  margin-left: -7px; border-radius: 50%; background: #fff;
  border: 2.5px solid var(--amber); cursor: grab; z-index: 2;
  box-shadow: 0 2px 9px rgba(0,0,0,.6);
  transition: transform .15s var(--ease), box-shadow .15s; }
.tl-handle:hover { transform: scale(1.22); }
.tl-handle:active { cursor: grabbing; transform: scale(1.08);
  box-shadow: 0 0 0 7px rgba(240,180,41,.16); }
.tl-axis { position: relative; height: 14px; margin-top: 2px; }
.tl-tick { position: absolute; transform: translateX(-50%); font-size: 9.5px;
  color: var(--ink-4); white-space: nowrap; font-variant-numeric: tabular-nums; }
.tl-tick::before { content: ""; position: absolute; left: 50%; top: -4px;
  width: 1px; height: 3px; background: var(--glass-line); }

/* ══ HUD ═══════════════════════════════════════════════════════════════ */
#hud-legend { position: fixed; z-index: 34; left: var(--gap-l);
  bottom: var(--above-tl); width: var(--rail-w);
  border-radius: var(--r); padding: 11px 13px 12px; display: none; }
#hud-legend.show { display: block; animation: fade-in .3s var(--ease-out); }
.lg-head { display: flex; align-items: center; justify-content: space-between;
  gap: 8px; margin-bottom: 9px; }
#lg-title { font-size: 10px; font-weight: 650; letter-spacing: .08em;
  text-transform: uppercase; color: var(--ink-4); }
#lg-mode { font-size: 11px; color: var(--ink-3); background: rgba(255,255,255,.05);
  border: 1px solid var(--glass-line2); border-radius: 6px; padding: 3px 6px;
  cursor: pointer; max-width: 165px; }
#lg-mode option { background: #12161f; color: var(--ink); }
.lg-items { display: flex; flex-wrap: wrap; gap: 4px 11px; }
.lg-item { display: flex; align-items: center; gap: 6px; font-size: 10.8px;
  color: var(--ink-3); cursor: pointer; transition: color .13s; }
.lg-item:hover { color: var(--ink); }
.lg-item.off { opacity: .3; }
.lg-sw { width: 8px; height: 8px; border-radius: 50%; flex: 0 0 auto;
  box-shadow: 0 0 7px currentColor; }
.lg-ramp { height: 7px; border-radius: 4px; margin: 4px 0 5px; }
.lg-ramp-lab { display: flex; justify-content: space-between; font-size: 10px;
  color: var(--ink-4); font-variant-numeric: tabular-nums; }

#hud-right { position: fixed; z-index: 34; right: var(--gap-r);
  bottom: var(--above-tl); display: flex;
  flex-direction: column; gap: 6px; }
#detail:not([hidden]) ~ #hud-right,
#charts:not([hidden]) ~ #hud-right { display: none; }

#tooltip { position: fixed; z-index: 60; pointer-events: none; max-width: 290px;
  padding: 9px 12px; border-radius: 10px; font-size: 11.8px; line-height: 1.55;
  background: rgba(10,13,20,.93); border: 1px solid var(--glass-line);
  -webkit-backdrop-filter: blur(14px); backdrop-filter: blur(14px);
  box-shadow: 0 12px 34px -8px rgba(0,0,0,.8);
  transform: translate(12px, 12px); }
#tooltip b { display: block; font-family: var(--mono); font-size: 11.5px;
  color: var(--ink); margin-bottom: 3px; }
#tooltip span { color: var(--ink-3); }
#tooltip .tt-hint { display: block; margin-top: 5px; font-size: 10.2px;
  color: var(--ink-4); }

/* ══ Story ═════════════════════════════════════════════════════════════ */
.story-card { display: flex; gap: 13px; padding: 13px; border-radius: 12px;
  cursor: pointer; border: 1px solid var(--glass-line2);
  background: rgba(255,255,255,.03); margin-bottom: 8px;
  transition: background .18s var(--ease), border-color .18s var(--ease),
              transform .18s var(--ease); }
.story-card:hover { background: rgba(255,255,255,.07);
  border-color: rgba(240,180,41,.3); transform: translateY(-1px); }
.story-ico { width: 38px; height: 38px; border-radius: 10px; flex: 0 0 auto;
  display: grid; place-items: center; font-size: 18px; }
.story-t { flex: 1 1 auto; min-width: 0; }
.story-t b { display: block; font-size: 13px; font-weight: 560; margin-bottom: 2px; }
.story-t p { font-size: 11.5px; color: var(--ink-3); line-height: 1.5; }
.story-t em { font-style: normal; font-size: 10.5px; color: var(--ink-4);
  display: block; margin-top: 5px; }

#story-hud { position: fixed; z-index: 44; left: 50%; transform: translateX(-50%);
  bottom: var(--above-tl); width: min(500px, calc(100vw - 28px));
  border-radius: var(--r); padding: 15px 18px 14px;
  animation: slide-u .42s var(--ease-out) both; }
.hud-top { display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 7px; }
.hud-chapter { font-size: 10px; font-weight: 650; letter-spacing: .08em;
  text-transform: uppercase; color: var(--amber); }
#story-hud h3 { font-size: 15.5px; font-weight: 600; letter-spacing: -.018em;
  margin-bottom: 6px; }
#story-hud p { font-size: 12.5px; color: var(--ink-2); line-height: 1.62; }
.hud-nav { display: flex; align-items: center; justify-content: space-between;
  gap: 12px; margin-top: 14px; }
.hud-dots { display: flex; gap: 5px; }
.hud-dot { width: 5px; height: 5px; border-radius: 50%;
  background: rgba(255,255,255,.2); transition: all .25s var(--ease); }
.hud-dot.on { background: var(--amber); width: 15px; border-radius: 3px; }

/* ══ Compare ═══════════════════════════════════════════════════════════ */
#compare { position: fixed; z-index: 44; left: 50%; transform: translateX(-50%);
  bottom: var(--above-tl);
  width: min(680px, calc(100vw - 28px)); max-height: 56vh; border-radius: var(--r);
  display: flex; flex-direction: column; overflow: hidden;
  animation: slide-u .42s var(--ease-out) both; }
.cmp-head { display: flex; align-items: center; justify-content: space-between;
  padding: 12px 15px 10px; border-bottom: 1px solid var(--glass-line2); }
.cmp-head h3 { font-size: 13px; font-weight: 600; }
.cmp-body { padding: 12px 15px 16px; overflow-y: auto; }
.cmp-grid { display: grid; gap: 1px; background: var(--glass-line2);
  border-radius: 10px; overflow: hidden; border: 1px solid var(--glass-line2); }
.cmp-grid > div { background: rgba(14,18,26,.86); padding: 8px 11px;
  font-size: 11.8px; }
.cmp-grid .ch { color: var(--ink-4); font-size: 10.5px; letter-spacing: .03em;
  text-transform: uppercase; font-weight: 600; }
.cmp-grid .cid { font-family: var(--mono); font-size: 11px; color: var(--ink); }
.cmp-grid .diff { color: var(--amber); }

/* ══ Sheet ═════════════════════════════════════════════════════════════ */
.sheet-scrim { position: fixed; inset: 0; z-index: 80; display: grid;
  place-items: center; padding: 24px; background: rgba(3,5,9,.66);
  -webkit-backdrop-filter: blur(6px); backdrop-filter: blur(6px);
  animation: fade .28s var(--ease-out); }
@keyframes fade { from { opacity: 0; } }
.sheet { width: min(680px, 100%);
  max-height: min(86vh, 780px); max-height: min(86dvh, 780px);
  display: flex; flex-direction: column; border-radius: var(--r-lg);
  overflow: hidden; animation: rise .38s var(--ease-out) both; }
@keyframes rise { from { opacity: 0; transform: translateY(20px) scale(.985); } }
.sheet-head { display: flex; align-items: center; justify-content: space-between;
  padding: 18px 22px 15px; border-bottom: 1px solid var(--glass-line2); }
.sheet-head h2 { font-size: 17px; font-weight: 600; letter-spacing: -.02em; }
.sheet-body { padding: 20px 22px 26px; overflow-y: auto; font-size: 13px;
  line-height: 1.68; color: var(--ink-2); }
.sheet-body h3 { font-size: 11px; font-weight: 650; letter-spacing: .08em;
  text-transform: uppercase; color: var(--ink-4); margin: 22px 0 9px; }
.sheet-body h3:first-child { margin-top: 0; }
.sheet-body p { margin-bottom: 11px; }
.sheet-body a { color: var(--amber); text-decoration: none;
  border-bottom: 1px solid rgba(240,180,41,.3); }
.sheet-body a:hover { border-bottom-color: var(--amber); }
.sheet-body code { font-family: var(--mono); font-size: 11.5px;
  background: rgba(255,255,255,.06); padding: 1.5px 5px; border-radius: 4px; }
.sheet-body ul { margin: 0 0 12px; padding-left: 19px; }
.sheet-body li { margin-bottom: 5px; }
.stat-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(110px, 1fr));
  gap: 9px; margin-bottom: 6px; }

/* ══ Toasts ════════════════════════════════════════════════════════════ */
#toasts { position: fixed; z-index: 90; left: 50%; transform: translateX(-50%);
  top: var(--below-top); display: flex; flex-direction: column;
  gap: 7px; align-items: center; pointer-events: none; }
.toast { padding: 9px 17px; border-radius: 99px; font-size: 12.3px;
  background: rgba(14,18,26,.94); border: 1px solid var(--glass-line);
  -webkit-backdrop-filter: blur(14px); backdrop-filter: blur(14px);
  box-shadow: 0 10px 30px -8px rgba(0,0,0,.75);
  animation: toast-in .32s var(--ease-out); }
.toast.out { animation: toast-out .3s var(--ease) forwards; }
@keyframes toast-in { from { opacity: 0; transform: translateY(-12px) scale(.95); } }
@keyframes toast-out { to { opacity: 0; transform: translateY(-9px) scale(.97); } }

/* ══ Responsive ════════════════════════════════════════════════════════ */
.only-mobile { display: none; }

@media (max-width: 1180px) {
  #charts { width: min(460px, calc(100vw - var(--gap) * 2)); }
  #detail:not([hidden]) ~ #charts { right: var(--gap); }
}

/* ── Mobile sheet primitives ─────────────────────────────────────────────
   Shared by the panels and the action sheet. The grab bar is decorative on
   desktop (hidden) and the drag target on touch. ─────────────────────── */
.sheet-grab { display: none; }

.mobile-sheet { align-items: end; padding: 0; }
.msheet { width: 100%; max-width: 620px; border-radius: var(--r-lg) var(--r-lg) 0 0;
  padding-bottom: max(10px, env(safe-area-inset-bottom, 0px));
  animation: slide-u .34s var(--ease-out) both; }
.msheet-list { padding: 4px 8px 8px; }
.msheet-row { display: flex; align-items: center; gap: 13px; width: 100%;
  padding: 13px 12px; border-radius: 12px; min-height: 52px;
  font-size: 14.5px; color: var(--ink-2); text-align: left; }
.msheet-row:active { background: rgba(255,255,255,.09); }
.msheet-row svg { width: 19px; height: 19px; flex: 0 0 auto; color: var(--ink-3); }
.msheet-row b { font-weight: 550; color: var(--ink); }
.msheet-row .msheet-sub { display: block; font-size: 11.5px; color: var(--ink-4);
  margin-top: 1px; }
.msheet-row.is-on svg, .msheet-row.is-on b { color: var(--amber); }

@media (max-width: 900px) {
  :root { --gap: 9px; --top-h: 52px; --tl-h: 80px; }
  .only-mobile { display: grid; }
  .brand-text { display: none; }
  /* At phone widths the bar holds back-link, search, filters and More. The
     brand button only opened About, which is a row in the More sheet. */
  #brand { display: none; }
  #site-back span { display: none; }
  #site-back { padding: 6px; }
  #count-pill .pill-sub { display: none; }
  /* Reachable from the More sheet instead — not dropped. */
  #btn-charts, #btn-story, #btn-layers, #btn-export { display: none; }

  #topbar { gap: 6px; padding: 0 6px 0 8px; }
  .topbar-actions { gap: 2px; }

  /* Panels become bottom sheets: anchored to the bottom edge, rounded at the
     top only, capped so the globe stays partly visible behind them. They
     deliberately cover the timeline — a phone has no room for both, and the
     sheet is one swipe from dismissal. */
  #rail, #detail, #charts {
    left: 0; right: 0; width: auto; top: auto;
    bottom: 0; max-height: 84vh; max-height: 84dvh;
    z-index: 46; border-radius: var(--r-lg) var(--r-lg) 0 0;
    border-bottom: 0; padding-bottom: env(safe-area-inset-bottom, 0px);
    animation: slide-u .38s var(--ease-out) both;
    transition: transform .26s var(--ease);
  }
  /* Set while a drag is in flight so the sheet tracks the finger 1:1. */
  #rail.dragging, #detail.dragging, #charts.dragging { transition: none; }
  /* Undo the desktop side-by-side offset: as sheets they stack, not tile. */
  #detail:not([hidden]) ~ #charts { right: 0; }
  .sheet-grab { display: block; width: 38px; height: 4px; border-radius: 99px;
    background: rgba(255,255,255,.22); margin: 9px auto 2px; flex: 0 0 auto;
    cursor: grab; touch-action: none; }
  /* The grab bar is a thin target; extend its hit area over the header. */
  #rail .panel-head, #detail .panel-head, #charts .panel-head { touch-action: none; }

  #hud-legend { left: 0; right: 0; bottom: 0; width: auto; z-index: 46;
    border-radius: var(--r-lg) var(--r-lg) 0 0;
    padding-bottom: max(12px, env(safe-area-inset-bottom, 0px)); }
  #hud-right { right: var(--gap-r); bottom: var(--above-tl);
    flex-direction: row; }
  #hud-right #btn-zin, #hud-right #btn-zout { display: none; }
  .tl-left { width: auto; }
  .tl-readout span { display: none; }
  #timeline { padding: 10px 12px; gap: 10px; }
  .popover.wide, #story-hud, #compare { width: calc(100vw - 18px); }
  .sheet-scrim { padding: 10px; }
  #story-hud, #compare { bottom: var(--above-tl); }
}

/* ── Touch sizing ────────────────────────────────────────────────────────
   Pointer-coarse rather than width-based: a touchscreen laptop needs these
   too, and a narrow desktop window does not. 44px is the Apple/WCAG floor
   for a primary control. ───────────────────────────────────────────────── */
@media (pointer: coarse) {
  .icon-btn { width: 44px; height: 44px; }
  .icon-btn.sm { width: 38px; height: 38px; }
  #site-back { min-width: 44px; min-height: 44px; justify-content: center; }
  .tab { padding: 10px 13px; }
  .text-btn { padding: 9px 10px; }
  .lg-item { padding: 5px 0; }
  .opt, .lrow, .sr-item, .story-card { min-height: 42px; }
  .fg-head { padding-top: 11px; padding-bottom: 11px; }
  .fg-list { max-height: 44vh; }
  /* Handles are the hardest thing to hit on a phone: give them real area
     via a transparent ::after rather than growing the visible dot. */
  .tl-handle::after { content: ""; position: absolute; inset: -14px -16px; }
}

@media (max-width: 560px) {
  .search-kbd { display: none; }
  #search { font-size: 16px; }  /* prevents iOS zoom-on-focus */
  .tl-readout b { font-size: 11.5px; }
  .kv { grid-template-columns: 1fr; gap: 2px 0; }
  .kv dt { margin-top: 7px; }
  #count-pill { display: none; }
  #search-results { max-height: 56vh; max-height: 56dvh; }
  .tabs { overflow-x: auto; flex-wrap: nowrap; scrollbar-width: none; }
  .tabs::-webkit-scrollbar { display: none; }
  .tab { flex: 0 0 auto; }
}

/* Landscape phones are short, not narrow: the sheet cap and the timeline
   both have to shrink or nothing is left for the globe. */
@media (max-height: 480px) and (pointer: coarse) {
  :root { --tl-h: 62px; }
  #rail, #detail, #charts { max-height: 92dvh; }
  .tl-axis { display: none; }
  #hud-right { display: none; }
}

@media (hover: none) {
  .icon-btn:active { background: rgba(255,255,255,.12); }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important;
    animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
}