/* VeriSpoof project page. Accent: University of Melbourne Heritage Blue #000F46 (as in the tech report); dark mode
   uses a lighter periwinkle companion. Semantic colours: synthetic (rose), checks (ok / fail / partial / n.a.). */
:root {
  --bg: #f6f7fb; --bg2: #eef1f7; --card: #ffffff; --line: #e1e5ee; --line2: #cfd5e2;
  --text: #121933; --muted: #566079; --faint: #8b93a7;
  --brand: #000f46; --brand-ink: #ffffff; --accent: #1d4e9e; --soft: #e3e7f1; --soft2: #f0f2f8;
  --hi: #2445b0; --hi2: #7f97e8; --other: #a7adb9; --other-line: #8e95a4; --open-fill: #eceef3;
  --synth: #d23f5b; --synth-soft: rgba(210, 63, 91, .16); --label: #121933;
  --ok: #0c7d55; --ok-bg: #e2f4ec; --fail: #c0304a; --fail-bg: #fbe5e9; --partial: #a86200; --partial-bg: #fbefdc;
  --na: #6b7386; --na-bg: #eef0f4;
  --shadow: 0 18px 50px rgba(0, 15, 70, .08), 0 2px 6px rgba(0, 15, 70, .04);
  --radius: 16px;
  --sans: "IBM Plex Sans", system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #060a18; --bg2: #0b1124; --card: #0e152c; --line: #1c2645; --line2: #2a3660;
    --text: #e8ecf8; --muted: #9ba5c0; --faint: #6f7a97;
    --brand: #a9bcff; --brand-ink: #050b20; --accent: #a9bcff; --soft: #18224a; --soft2: #111a38;
    --hi: #7d97f5; --hi2: #4664cf; --other: #5c6479; --other-line: #7a8299; --open-fill: #141b33;
    --synth: #ff7a90; --synth-soft: rgba(255, 122, 144, .2); --label: #e8ecf8;
    --ok: #46d39f; --ok-bg: rgba(70, 211, 159, .12); --fail: #ff7086; --fail-bg: rgba(255, 112, 134, .13);
    --partial: #f5b95b; --partial-bg: rgba(245, 185, 91, .13); --na: #96a0ba; --na-bg: rgba(150, 160, 186, .1);
    --shadow: 0 24px 60px rgba(0, 0, 0, .45);
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: #060a18; --bg2: #0b1124; --card: #0e152c; --line: #1c2645; --line2: #2a3660;
  --text: #e8ecf8; --muted: #9ba5c0; --faint: #6f7a97;
  --brand: #a9bcff; --brand-ink: #050b20; --accent: #a9bcff; --soft: #18224a; --soft2: #111a38;
  --hi: #7d97f5; --hi2: #4664cf; --other: #5c6479; --other-line: #7a8299; --open-fill: #141b33;
  --synth: #ff7a90; --synth-soft: rgba(255, 122, 144, .2); --label: #e8ecf8;
  --ok: #46d39f; --ok-bg: rgba(70, 211, 159, .12); --fail: #ff7086; --fail-bg: rgba(255, 112, 134, .13);
  --partial: #f5b95b; --partial-bg: rgba(245, 185, 91, .13); --na: #96a0ba; --na-bg: rgba(150, 160, 186, .1);
  --shadow: 0 24px 60px rgba(0, 0, 0, .45);
  color-scheme: dark;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 72px; }
body {
  margin: 0; background: var(--bg); color: var(--text); overflow-x: hidden;
  font: 16px/1.6 var(--sans); -webkit-font-smoothing: antialiased;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
code, .mono { font-family: var(--mono); }
code { font-size: .92em; }
small { color: var(--muted); font-weight: 400; }
.hl { color: var(--brand); }
.eyebrow { text-transform: uppercase; letter-spacing: .16em; font: 600 12px var(--mono); color: var(--accent); margin: 0 0 12px; }
.fine { color: var(--muted); font-size: 13px; margin: 14px 0 0; }
.center { text-align: center; max-width: 860px; margin-left: auto; margin-right: auto; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 6px; }

/* ------------------------------------------------------------------ nav */
.nav {
  position: sticky; top: 0; z-index: 20; display: flex; justify-content: space-between; align-items: center; gap: 12px;
  padding: 12px clamp(16px, 4vw, 48px); background: color-mix(in srgb, var(--bg) 82%, transparent);
  backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px); border-bottom: 1px solid var(--line);
}
.brand { font-weight: 700; font-size: 19px; color: var(--text); letter-spacing: -.02em; display: flex; align-items: center; gap: 10px; }
.brand:hover { text-decoration: none; }
.mark { width: 26px; height: 26px; }
.mark rect { fill: var(--brand); }
.mark path { fill: none; stroke: var(--brand-ink); stroke-width: 2.2; stroke-linecap: round; stroke-linejoin: round; }
.nav nav { display: flex; gap: 20px; align-items: center; font-size: 14px; }
.nav nav a { color: var(--muted); }
.nav nav a:hover { color: var(--text); text-decoration: none; }
.nav .pill { color: var(--text); border: 1px solid var(--line2); padding: 6px 12px; border-radius: 999px; white-space: nowrap; }
.theme { width: 34px; height: 34px; border-radius: 50%; border: 1px solid var(--line2); background: var(--card); cursor: pointer; display: grid; place-items: center; padding: 0; color: var(--text); }
.theme svg { width: 18px; height: 18px; }
.theme circle { fill: none; stroke: currentColor; stroke-width: 1.8; }
.theme path { fill: currentColor; }

/* ------------------------------------------------------------------ hero */
.hero { position: relative; text-align: center; padding: clamp(56px, 10vw, 120px) 16px 40px; overflow: hidden; }
.hero-bg { position: absolute; inset: 0; pointer-events: none; opacity: .9;
  background: radial-gradient(60% 50% at 50% 0%, color-mix(in srgb, var(--hi) 14%, transparent), transparent 70%); }
.hero-bg canvas { position: absolute; left: 0; right: 0; bottom: 0; width: 100%; height: 120px;
  -webkit-mask-image: linear-gradient(transparent, #000 40%); mask-image: linear-gradient(transparent, #000 40%); }
.hero h1 { position: relative; font-size: clamp(46px, 9vw, 104px); line-height: .98; letter-spacing: -.045em; margin: 0 0 24px; font-weight: 700; }
.lede { position: relative; max-width: 700px; margin: 0 auto; color: var(--muted); font-size: clamp(16px, 2vw, 19px); }
.lede em { color: var(--text); font-style: normal; font-weight: 600; }
.cta { position: relative; display: flex; gap: 10px; justify-content: center; margin: 32px auto 48px; flex-wrap: wrap; max-width: 900px; }
.btn { padding: 11px 20px; border-radius: 999px; border: 1px solid var(--line2); color: var(--text); font-weight: 600; font-size: 15px;
  background: var(--card); transition: transform .15s, box-shadow .15s; display: inline-flex; gap: 6px; align-items: center; }
.btn:hover { text-decoration: none; transform: translateY(-1px); box-shadow: var(--shadow); }
.btn.primary { background: var(--brand); color: var(--brand-ink); border-color: var(--brand); }
.btn .ico { font-size: 15px; line-height: 1; }
.stats { position: relative; display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; max-width: 1060px; margin: 0 auto; }
.stat { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 20px 14px; box-shadow: var(--shadow); }
.stat b { display: block; font-size: clamp(30px, 4vw, 42px); font-weight: 700; letter-spacing: -.03em; font-variant-numeric: tabular-nums; color: var(--brand); }
.stat span { display: block; color: var(--muted); font-size: 13px; line-height: 1.45; margin-top: 4px; }
.stat strong { color: var(--text); font-weight: 600; }
.authors { position: relative; color: var(--muted); font: 500 13px var(--mono); margin: 28px 0 0; }

.questions { padding-top: 24px; }
.qrow { display: grid; grid-template-columns: repeat(5, 1fr); gap: 10px; }
.qchip { border: 1px solid var(--line); border-radius: 14px; padding: 14px 16px; background: var(--card); display: grid; gap: 2px; }
.qchip i { font: 600 11px var(--mono); color: var(--faint); font-style: normal; }
.qchip b { font-size: 16px; }
.qchip span { font-size: 13px; color: var(--muted); }

/* ------------------------------------------------------------------ sections */
.section { max-width: 1160px; margin: 0 auto; padding: 88px clamp(16px, 4vw, 32px) 16px; }
.section-head { text-align: center; max-width: 800px; margin: 0 auto 32px; }
.section-head h2 { font-size: clamp(28px, 4.4vw, 46px); line-height: 1.1; letter-spacing: -.03em; margin: 0 0 14px; }
.sub { color: var(--muted); margin: 0; }

/* ------------------------------------------------------------------ gallery */
.gallery-bar { display: flex; justify-content: space-between; align-items: center; gap: 12px; flex-wrap: wrap; margin-bottom: 14px; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chip { border: 1px solid var(--line2); background: var(--card); color: var(--muted); padding: 7px 13px; border-radius: 999px;
  cursor: pointer; font: 500 14px var(--sans); display: inline-flex; gap: 7px; align-items: center; }
.chip:hover { color: var(--text); }
.chip.on { color: var(--brand-ink); background: var(--brand); border-color: var(--brand); }
.chip .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--ok); flex: none; }
.chip .dot.spoof { background: var(--synth); }
.chip .dot.partial { background: linear-gradient(90deg, var(--ok) 50%, var(--synth) 50%); }
.seg { display: inline-flex; gap: 3px; padding: 3px; border: 1px solid var(--line2); border-radius: 999px; background: var(--card); max-width: 100%; }
.seg-btn { border: 0; background: none; color: var(--muted); padding: 6px 14px; border-radius: 999px; cursor: pointer; font: 500 14px var(--sans); white-space: nowrap; }
.seg-btn.on { color: var(--brand-ink); background: var(--brand); }
.seg.small .seg-btn { font-size: 13px; padding: 4px 11px; }

.player { background: var(--card); border: 1px solid var(--line); border-radius: 22px; padding: clamp(16px, 3vw, 28px); box-shadow: var(--shadow); }
.ex-head { display: flex; justify-content: space-between; gap: 16px; align-items: flex-start; margin-bottom: 14px; }
.ex-meta { margin: 0; font: 500 12px var(--mono); color: var(--faint); letter-spacing: .06em; text-transform: uppercase; }
.ex-head h3 { margin: 2px 0 4px; font-size: 22px; letter-spacing: -.01em; }
.ex-desc { margin: 0; color: var(--muted); font-size: 15px; max-width: 760px; }
.truth { flex: none; font: 600 12px var(--mono); padding: 5px 10px; border-radius: 999px; text-transform: uppercase; letter-spacing: .06em; border: 1px solid; white-space: nowrap; }
.truth.bonafide { color: var(--ok); border-color: var(--ok); background: var(--ok-bg); }
.truth.spoof { color: var(--synth); border-color: var(--synth); background: var(--synth-soft); }

.viz { position: relative; }
#specCanvas { width: 100%; height: 250px; display: block; cursor: pointer; border-radius: 12px; background: var(--bg2); touch-action: manipulation; }
.tip { position: absolute; pointer-events: none; background: var(--card); border: 1px solid var(--line2); border-radius: 8px;
  padding: 6px 9px; font: 12px var(--mono); color: var(--text); box-shadow: var(--shadow); white-space: nowrap; transform: translate(-50%, -110%); z-index: 2; }
.controls { display: flex; align-items: center; gap: 16px; margin: 14px 0 6px; flex-wrap: wrap; }
.play { width: 50px; height: 50px; border-radius: 50%; border: 0; cursor: pointer; font-size: 18px; color: var(--brand-ink); background: var(--brand); flex: none; }
.time { font: 600 18px var(--mono); min-width: 120px; font-variant-numeric: tabular-nums; }
.legend { display: flex; flex-wrap: wrap; gap: 14px; font-size: 12px; color: var(--muted); margin-left: auto; }
.sw { display: inline-block; width: 16px; height: 10px; border-radius: 2px; margin-right: 6px; vertical-align: -1px; }
.sw.lab { background: repeating-linear-gradient(135deg, var(--label) 0 1.5px, transparent 1.5px 4px); border: 1.5px solid var(--label); }
.sw.said { background: var(--synth-soft); border-top: 3px solid var(--synth); }
.sw.tok { background: linear-gradient(90deg, var(--line2), var(--synth)); }

.answer-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 2.1fr); gap: 16px; margin-top: 14px; }
.answer, .rationale { border: 1px solid var(--line); border-radius: 14px; padding: 16px 18px; background: var(--bg); min-width: 0; }
.answer h4, .rationale h4 { margin: 0 0 10px; font: 600 12px var(--mono); text-transform: uppercase; letter-spacing: .1em; color: var(--muted); }
.answer h4 small, .rationale h4 small { text-transform: none; letter-spacing: 0; font: 400 12px var(--sans); }
.answer h4.mt { margin-top: 18px; }
.meter { display: flex; align-items: center; gap: 12px; }
.meter-track { position: relative; flex: 1; height: 12px; border-radius: 99px; background: var(--card); border: 1px solid var(--line2); overflow: hidden; }
.meter-track.same i { background: var(--hi); }
.meter-track i { position: absolute; left: 0; top: 0; bottom: 0; background: var(--synth); border-radius: 99px; transition: width .4s cubic-bezier(.2, .8, .2, 1); }
.meter-track b { position: absolute; left: 50%; top: -2px; bottom: -2px; width: 2px; background: var(--text); opacity: .6; }
.meter .mono { font-size: 14px; min-width: 120px; text-align: right; }
.verdict { margin: 8px 0 0; font-size: 22px; font-weight: 700; letter-spacing: -.01em; display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.callout { margin: 14px 0 0; padding: 10px 12px; border-radius: 10px; background: var(--soft); color: var(--text); font-size: 14px; border-left: 3px solid var(--brand); }
.cf { margin-top: 14px; border: 1.5px dashed var(--line2); border-radius: 12px; padding: 10px 12px; font-size: 13px; }
.cf h5 { margin: 0 0 6px; font: 600 11px var(--mono); text-transform: uppercase; letter-spacing: .1em; color: var(--muted); }
.cf p { margin: 4px 0; color: var(--muted); }
.cf code { color: var(--text); }

.badge { display: inline-flex; align-items: center; gap: 5px; font: 600 12px var(--mono); padding: 3px 9px; border-radius: 999px; border: 1px solid; white-space: nowrap; }
.badge.ok { color: var(--ok); border-color: var(--ok); background: var(--ok-bg); }
.badge.fail { color: var(--fail); border-color: var(--fail); background: var(--fail-bg); }
.badge.partial { color: var(--partial); border-color: var(--partial); background: var(--partial-bg); }
.badge.na { color: var(--na); border-color: var(--na); border-style: dashed; background: var(--na-bg); }

.rat-head { display: flex; justify-content: space-between; align-items: center; gap: 10px; flex-wrap: wrap; margin-bottom: 4px; }
.rat-head h4 { margin: 0; }
.tally { display: flex; gap: 6px; }
.rows { display: grid; }
.row { display: grid; grid-template-columns: 178px minmax(0, 1fr) auto; gap: 6px 14px; padding: 11px 0; border-top: 1px solid var(--line); align-items: start; }
.row:first-child { border-top: 0; }
.row .f { font: 600 11.5px var(--mono); color: var(--brand); padding-top: 3px; letter-spacing: .02em; overflow-wrap: anywhere; }
.row .s { font-size: 14.5px; min-width: 0; }
.row .ref { display: block; margin-top: 3px; font: 12px var(--mono); color: var(--muted); }
.row .items { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 7px; }
.it { font: 12px var(--mono); padding: 3px 8px; border-radius: 7px; background: var(--card); border: 1px solid var(--line); color: var(--muted); }
.it b { color: var(--text); font-weight: 600; }
.it.fail { border-color: var(--fail); }
.it.fail b { color: var(--fail); }
.it.partial { border-color: var(--partial); }
.it .x { margin-right: 4px; }
.it.ok .x { color: var(--ok); } .it.fail .x { color: var(--fail); } .it.partial .x { color: var(--partial); }
.row.dec { margin-top: 6px; border: 1.5px solid var(--line2); border-radius: 12px; padding: 11px 12px; background: var(--soft2); }
.raw { margin-top: 12px; }
.raw summary, .more summary { cursor: pointer; color: var(--muted); font-size: 13px; }
.raw pre { white-space: pre-wrap; font: 12.5px/1.6 var(--mono); background: var(--card); border: 1px solid var(--line); border-radius: 10px; padding: 12px; margin: 8px 0 0; overflow-wrap: anywhere; }

.pair-head { display: flex; justify-content: space-between; align-items: center; gap: 12px; flex-wrap: wrap; margin: 40px 0 14px; }
.pair-head h3 { margin: 0; font-size: 22px; letter-spacing: -.01em; }
.pair-audio { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.pa { border: 1px solid var(--line); border-radius: 14px; padding: 12px; background: var(--bg); min-width: 0; }
.pa-top { display: flex; align-items: center; gap: 10px; margin-bottom: 8px; }
.pa-top .play { width: 38px; height: 38px; font-size: 14px; }
.pa-top b { font: 600 12px var(--mono); letter-spacing: .1em; color: var(--muted); }
.pa-top span { font-size: 13px; color: var(--muted); margin-left: auto; text-align: right; }
.pa canvas { width: 100%; height: 90px; display: block; border-radius: 8px; background: var(--bg2); cursor: pointer; }
.credits { margin-top: 18px; }

/* ------------------------------------------------------------------ how */
.fig { margin: 0; background: #fff; border: 1px solid var(--line); border-radius: 18px; padding: clamp(8px, 2vw, 18px); box-shadow: var(--shadow); }
.fig img { width: 100%; height: auto; display: block; }
.fig figcaption { color: #566079; font-size: 13px; margin-top: 8px; padding: 0 6px 4px; }
.fig.wide { margin-bottom: 20px; }
.cards { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 20px; min-width: 0; }
.card-num { font: 600 12px var(--mono); color: var(--accent); }
.card h3 { margin: 6px 0 8px; font-size: 19px; letter-spacing: -.01em; }
.card p { color: var(--muted); font-size: 14.5px; margin: 0 0 12px; }
.card p b { color: var(--text); }
.formula { background: var(--soft2); border: 1px solid var(--line); border-radius: 10px; padding: 9px 10px; font-size: 12px; line-height: 1.7; color: var(--text) !important; overflow-wrap: anywhere; }
.formula span { color: var(--brand); }
.checklist { list-style: none; padding: 0; margin: 0; display: grid; gap: 5px; font-size: 13px; color: var(--muted); }
.checklist code { color: var(--brand); font-size: 11.5px; }
.tokviz { display: grid; grid-template-columns: 16fr 52fr; gap: 6px; height: 16px; }
.tokviz span { border-radius: 4px; }
.tokviz .g { background: repeating-linear-gradient(90deg, var(--hi) 0 6px, transparent 6px 8px); }
.tokviz .f { background: repeating-linear-gradient(90deg, var(--hi2) 0 3px, transparent 3px 5px); }
.stages { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; margin-top: 18px; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; background: var(--card); }
.stage { display: flex; gap: 12px; padding: 16px 18px; border-left: 1px solid var(--line); }
.stage:first-child { border-left: 0; }
.stage p { margin: 2px 0 0; font-size: 13.5px; color: var(--muted); }
.st-n { flex: none; width: 28px; height: 28px; border-radius: 50%; display: grid; place-items: center; font: 600 13px var(--mono); background: var(--brand); color: var(--brand-ink); }
.more { margin-top: 18px; }
.more summary { font-size: 14px; margin-bottom: 10px; }

/* ------------------------------------------------------------------ results */
.panel { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 18px; min-width: 0; }
.panel h4 { margin: 0 0 12px; font-size: 15px; font-weight: 600; }
.panel h4 small { display: block; font-size: 12.5px; margin-top: 2px; }
.panel-bar { display: flex; justify-content: space-between; align-items: flex-start; gap: 12px; flex-wrap: wrap; }
.filters { display: flex; gap: 8px; flex-wrap: wrap; }
.bench-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-top: 16px; }
.key { display: flex; gap: 14px; flex-wrap: wrap; font-size: 12px; color: var(--muted); margin-top: 10px; }
.k { display: inline-block; width: 12px; height: 10px; border-radius: 2px; margin-right: 6px; vertical-align: -1px; }
.k.ours, .k.plus { background: var(--hi); }
.k.base { background: var(--hi2); }
.k.prop, .k.probe { background: var(--other); }
.k.open { background: var(--open-fill); border: 1.5px solid var(--other-line); }

.arena { display: grid; gap: 3px; }
.ar { display: grid; grid-template-columns: 30px minmax(120px, 210px) minmax(0, 1fr); gap: 10px; align-items: center; font-size: 13px; color: var(--muted); padding: 1px 0; border-radius: 6px; }
.ar:hover { background: var(--soft2); }
.ar .rk { font: 12px var(--mono); text-align: right; color: var(--faint); }
.ar .nm { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.ar .tr { position: relative; height: 16px; display: flex; align-items: center; gap: 8px; min-width: 0; }
.ar .tr i { display: block; height: 12px; border-radius: 0 4px 4px 0; flex: none; transition: width .5s cubic-bezier(.2, .8, .2, 1); }
.ar .tr i.proprietary { background: var(--other); }
.ar .tr i.open { background: var(--open-fill); border: 1.5px solid var(--other-line); border-left: 0; }
.ar .tr i.ours { background: var(--hi); }
.ar .tr i.ours.base { background: var(--hi2); }
.ar .tr span { font: 12px var(--mono); color: var(--text); white-space: nowrap; }
.ar.ours { color: var(--text); font-weight: 600; }
.ar.ours .rk { color: var(--brand); font-weight: 600; }
.ar.ours .tr span { font-weight: 600; color: var(--brand); }
.ar .tr span small { color: var(--muted); font-weight: 400; }

.table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: 12px; background: var(--card); -webkit-overflow-scrolling: touch; }
table.sets { border-collapse: collapse; width: 100%; font: 12.5px var(--mono); font-variant-numeric: tabular-nums; }
.sets th, .sets td { padding: 7px 8px; text-align: right; white-space: nowrap; border-bottom: 1px solid var(--line); }
.sets th { position: sticky; top: 0; background: var(--bg2); color: var(--muted); font-weight: 600; cursor: pointer; user-select: none; }
.sets th:first-child, .sets td:first-child { text-align: left; position: sticky; left: 0; background: var(--card); z-index: 1; font-family: var(--sans); font-size: 13px; }
.sets th:first-child { background: var(--bg2); z-index: 2; }
.sets th.sorted { color: var(--brand); }
.sets td.best { font-weight: 700; color: var(--text); }
.sets tr.ours td { background: var(--soft); color: var(--text); }
.sets tr.ours td:first-child { background: var(--soft); font-weight: 600; }
.sets td.grp { text-align: left; font: italic 12px var(--sans); color: var(--faint); background: var(--card); }
.sets td.na { color: var(--faint); }

.hbars { display: grid; gap: 6px; }
.hb { display: grid; grid-template-columns: minmax(0, 150px) minmax(0, 1fr); gap: 10px; align-items: center; font-size: 13px; color: var(--muted); }
.hb .nm { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.hb .tr { display: flex; align-items: center; gap: 8px; height: 14px; }
.hb .tr i { height: 12px; border-radius: 0 4px 4px 0; display: block; flex: none; }
.hb .tr span { font: 12px var(--mono); color: var(--text); }
.hb.ours { color: var(--text); font-weight: 600; }
.gbars { display: grid; gap: 10px; }
.gb { display: grid; grid-template-columns: minmax(0, 150px) minmax(0, 1fr); gap: 10px; align-items: center; font-size: 13px; color: var(--muted); }
.gb .bars { display: grid; gap: 2px; }
.gb .bar { display: flex; align-items: center; gap: 6px; height: 11px; }
.gb .bar i { height: 9px; border-radius: 0 3px 3px 0; display: block; flex: none; }
.gb .bar span { font: 11px var(--mono); color: var(--muted); }
.gb .bar.plus span { color: var(--text); font-weight: 600; }
i.probe { background: var(--other); } i.base { background: var(--hi2); } i.plus { background: var(--hi); }
.attr-tiles { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-top: 16px; }
.tile { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 16px 18px; }
.tile p { margin: 0 0 8px; color: var(--muted); font-size: 13.5px; }
.tile .nums { display: flex; gap: 18px; align-items: baseline; }
.tile .nums b { font-size: 28px; letter-spacing: -.02em; color: var(--brand); font-variant-numeric: tabular-nums; }
.tile .nums span { font: 12px var(--mono); color: var(--muted); }
.tile .nums .bse b { color: var(--text); font-weight: 500; }
.dumb { display: grid; gap: 7px; }
.db { display: grid; grid-template-columns: minmax(0, 140px) minmax(0, 1fr) 92px; gap: 10px; align-items: center; font-size: 13px; color: var(--muted); }
.db .nm { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.db .ln { position: relative; height: 16px; }
.db .ln .rail { position: absolute; left: 0; right: 0; top: 7px; height: 2px; background: var(--line); border-radius: 2px; }
.db .ln .seg2 { position: absolute; top: 6px; height: 4px; background: var(--hi2); opacity: .55; border-radius: 2px; transition: left .5s, width .5s; }
.db .ln .p { position: absolute; top: 2px; width: 12px; height: 12px; border-radius: 50%; transform: translateX(-6px); box-shadow: 0 0 0 2px var(--card); transition: left .5s; }
.db .ln .p.a { background: var(--other); } .db .ln .p.b { background: var(--hi); }
.db .v { font: 12px var(--mono); text-align: right; color: var(--muted); white-space: nowrap; }
.db .v b { color: var(--text); }
.db.hot .nm { color: var(--text); font-weight: 600; }
.axis-note { display: flex; justify-content: space-between; font: 11px var(--mono); color: var(--faint); margin: 2px 102px 0 150px; }

/* ------------------------------------------------------------------ use / cite */
.code { background: #0a1027; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; max-width: 900px; margin: 0 auto; }
.tabs { display: flex; gap: 4px; padding: 10px; border-bottom: 1px solid rgba(255, 255, 255, .08); align-items: center; }
.tab, .copy { background: none; border: 0; color: #9aa4be; font: 500 13px var(--sans); padding: 6px 12px; border-radius: 8px; cursor: pointer; }
.tab.on { background: rgba(169, 188, 255, .14); color: #c9d5ff; }
.copy { margin-left: auto; border: 1px solid rgba(255, 255, 255, .14); }
.code pre { display: none; margin: 0; padding: 20px; overflow-x: auto; font: 13px/1.7 var(--mono); color: #d7def2; }
.code pre.on { display: block; }
.code .c { color: #7d89aa; }
.links { display: grid; grid-template-columns: repeat(5, 1fr); gap: 12px; margin: 22px auto 0; max-width: 1160px; }
.lcard { background: var(--card); border: 1px solid var(--line); border-radius: 14px; padding: 14px 16px; color: var(--text); display: grid; gap: 4px; transition: transform .15s, box-shadow .15s; }
.lcard:hover { text-decoration: none; transform: translateY(-2px); box-shadow: var(--shadow); }
.lcard b { color: var(--brand); }
.lcard span { color: var(--muted); font-size: 13px; }
.cite pre { white-space: pre; }
.about { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-top: 28px; }
.about h4 { margin: 0 0 6px; font: 600 12px var(--mono); text-transform: uppercase; letter-spacing: .1em; color: var(--muted); }
.about p { margin: 0; font-size: 14px; color: var(--muted); }

footer { max-width: 1160px; margin: 72px auto 0; padding: 28px clamp(16px, 4vw, 32px) 48px; border-top: 1px solid var(--line); color: var(--muted); font-size: 14px; }

@media (max-width: 1000px) {
  .cards { grid-template-columns: repeat(2, 1fr); }
  .links { grid-template-columns: repeat(2, 1fr); }
  .about { grid-template-columns: repeat(2, 1fr); }
  .qrow { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 860px) {
  .nav nav a:not(.pill) { display: none; }
  .stats { grid-template-columns: repeat(2, 1fr); }
  .answer-grid, .bench-grid, .pair-audio, .stages, .attr-tiles { grid-template-columns: 1fr; }
  .stage { border-left: 0; border-top: 1px solid var(--line); }
  .stage:first-child { border-top: 0; }
  .row { grid-template-columns: minmax(0, 1fr) auto; }
  .row .f { grid-column: 1 / -1; padding-top: 0; }
  .row .s { grid-column: 1; }
  .legend { margin-left: 0; }
  #specCanvas { height: 220px; }
}
@media (max-width: 560px) {
  .cards, .links, .about, .qrow { grid-template-columns: 1fr; }
  .qrow { grid-template-columns: 1fr 1fr; }
  .stat { padding: 16px 10px; }
  .ar { grid-template-columns: 24px minmax(0, 118px) minmax(0, 1fr); gap: 6px; font-size: 12px; }
  .db { grid-template-columns: minmax(0, 96px) minmax(0, 1fr) 78px; gap: 6px; font-size: 12px; }
  .gb, .hb { grid-template-columns: minmax(0, 104px) minmax(0, 1fr); font-size: 12px; }
  .ex-head { flex-direction: column; gap: 8px; }
  .meter .mono { min-width: 0; font-size: 13px; }
  .time { min-width: 0; }
  .gallery-bar .seg { width: 100%; }
  .gallery-bar .seg-btn { flex: 1; }
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } * { transition: none !important; animation: none !important; } }

/* the film (section #film, right after the hero) */
.film { padding-top: 56px; }
.film-frame { max-width: 1040px; margin: 0 auto; border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow);
  border: 1px solid var(--line); background: #000; aspect-ratio: 16 / 9; }
.film-frame video { display: block; width: 100%; height: 100%; object-fit: contain; background: #000; }

/* hero cover loop (12 s, silent) */
.hero-cover { position: relative; max-width: 1040px; margin: 0 auto 48px; border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); background: #000F46; }
.hero-cover video { display: block; width: 100%; aspect-ratio: 16 / 9; object-fit: cover; }