/* ==========================================================================
   Have I Seen Enough? — project page
   Colour tokens live on :root; dark values are declared twice (OS setting and
   explicit toggle) so the toggle wins in both directions.
   ========================================================================== */

:root {
  color-scheme: light;
  --bg: #fbfaf7;
  --surface: #ffffff;
  --surface-2: #f3f1eb;
  --ink: #16181d;
  --ink-2: #474b53;
  --muted: #7b7f87;
  --hair: #e6e3db;
  --axis: #c9c6bd;
  --grid: #eeece6;

  /* readiness = teal, confidence = orange; validated pair (CVD ΔE 9.3) */
  --accent: #0b8468;
  --accent-ink: #086a53;
  --accent-wash: rgba(11, 132, 104, 0.10);
  --accent-wash-2: rgba(11, 132, 104, 0.16);
  --conf: #e0701f;

  --conf-ink: #b8560f;

  /* decorative hues for tiles, cards and section labels; charts use only accent/conf */
  --teal: #0b8468;   --teal-ink: #086a53;
  --sky: #0284c7;    --sky-ink: #0369a1;
  --violet: #7c3aed; --violet-ink: #6d28d9;
  --rose: #db2777;   --rose-ink: #be185d;
  --amber: #d97706;  --amber-ink: #b45309;

  /* hero card; white text holds >= 4.5:1 across the whole gradient */
  --hero-grad: linear-gradient(135deg, #0373b0 0%, #0e7490 45%, #0f6b63 100%);
  --hero-shadow: 0 22px 50px -24px rgba(3, 105, 161, 0.6);

  --shadow: 0 1px 2px rgba(20, 20, 20, 0.04), 0 6px 24px rgba(20, 20, 20, 0.05);
  --radius: 12px;

  --serif: "Newsreader", "Iowan Old Style", "Palatino Linotype", Georgia, serif;
  --sans: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;

  /* page layout: a 1200px column (HERBench proportions) */
  --container: 1200px;                                   /* content column */
  --measure: 900px;                                      /* running text */
  --teaser: 960px;                                       /* hero figure, narrower than the page */
  --text-size: 16px;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    color-scheme: dark;
    --bg: #0a172c;
    --surface: #102039;
    --surface-2: #16294a;
    --ink: #eef2f8;
    --ink-2: #c3cad8;
    --muted: #8b96ab;
    --hair: #1f3354;
    --axis: #2e4468;
    --grid: #16284a;
    --accent: #23a57b;
    --accent-ink: #4cc79c;
    --accent-wash: rgba(35, 165, 123, 0.15);
    --accent-wash-2: rgba(35, 165, 123, 0.25);
    --conf: #d86a2a;
    --conf-ink: #f0a066;
    --teal: #23a57b;   --teal-ink: #4cc79c;
    --sky: #38bdf8;    --sky-ink: #7dd3fc;
    --violet: #a78bfa; --violet-ink: #c4b5fd;
    --rose: #f472b6;   --rose-ink: #f9a8d4;
    --amber: #f59e0b;  --amber-ink: #fcd34d;
    --hero-grad: linear-gradient(135deg, #0369a1 0%, #0e7490 45%, #115e59 100%);
    --hero-shadow: 0 22px 50px -24px rgba(0, 0, 0, 0.7);
    --shadow: 0 1px 2px rgba(0, 0, 0, 0.3), 0 8px 28px rgba(0, 0, 0, 0.28);
  }
}

:root[data-theme="dark"] {
  color-scheme: dark;
  --bg: #0a172c;
  --surface: #102039;
  --surface-2: #16294a;
  --ink: #eef2f8;
  --ink-2: #c3cad8;
  --muted: #8b96ab;
  --hair: #1f3354;
  --axis: #2e4468;
  --grid: #16284a;
  --accent: #23a57b;
  --accent-ink: #4cc79c;
  --accent-wash: rgba(35, 165, 123, 0.15);
  --accent-wash-2: rgba(35, 165, 123, 0.25);
  --conf: #d86a2a;
  --conf-ink: #f0a066;
  --teal: #23a57b;   --teal-ink: #4cc79c;
  --sky: #38bdf8;    --sky-ink: #7dd3fc;
  --violet: #a78bfa; --violet-ink: #c4b5fd;
  --rose: #f472b6;   --rose-ink: #f9a8d4;
  --amber: #f59e0b;  --amber-ink: #fcd34d;
  --hero-grad: linear-gradient(135deg, #0369a1 0%, #0e7490 45%, #115e59 100%);
  --hero-shadow: 0 22px 50px -24px rgba(0, 0, 0, 0.7);
  --shadow: 0 1px 2px rgba(0, 0, 0, 0.3), 0 8px 28px rgba(0, 0, 0, 0.28);
}

/* ---------- base ---------- */

*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; scroll-padding-top: 72px; -webkit-text-size-adjust: 100%; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  font-size: var(--text-size);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

img { max-width: 100%; height: auto; display: block; }

a { color: var(--accent-ink); text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:hover { text-decoration-thickness: 2px; }

::selection { background: var(--accent-wash-2); }

:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 4px; }

strong { font-weight: 600; }
em { font-style: italic; }

.num { font-variant-numeric: tabular-nums; white-space: nowrap; }

/* Hue utilities: tiles, cards, callouts and sections read --hue / --hue-ink. */
.hue-teal   { --hue: var(--teal);   --hue-ink: var(--teal-ink); }
.hue-sky    { --hue: var(--sky);    --hue-ink: var(--sky-ink); }
.hue-violet { --hue: var(--violet); --hue-ink: var(--violet-ink); }
.hue-rose   { --hue: var(--rose);   --hue-ink: var(--rose-ink); }
.hue-amber  { --hue: var(--amber);  --hue-ink: var(--amber-ink); }
.hue-conf   { --hue: var(--conf);   --hue-ink: var(--conf-ink); }
.nowrap { white-space: nowrap; }

.wrap { width: 100%; max-width: var(--container); margin: 0 auto; padding: 0 24px; }
/* Figures, charts and cards use the container width; running text keeps a readable measure. */
.prose { max-width: var(--measure); margin-left: auto; margin-right: auto; }

@media (max-width: 640px) {
  :root { --text-size: 15.5px; }
  .wrap { padding: 0 16px; }
}

/* ---------- top bar ---------- */

.topbar {
  position: sticky; top: 0; z-index: 40;
  background: color-mix(in srgb, var(--bg) 86%, transparent);
  backdrop-filter: saturate(1.4) blur(10px);
  -webkit-backdrop-filter: saturate(1.4) blur(10px);
  border-bottom: 1px solid transparent;
  transition: border-color .2s ease;
}
.topbar.scrolled { border-bottom-color: var(--hair); }
.topbar .wrap { display: flex; align-items: center; gap: 14px; height: 60px; }
.inst-logo { flex: none; width: 40px; height: 40px; object-fit: contain; border-radius: 8px; }
.topbar .brand {
  font-family: var(--serif); font-weight: 600; font-size: 19px; color: var(--ink);
  text-decoration: none; white-space: nowrap; letter-spacing: -0.01em;
  opacity: 0; transform: translateY(4px); transition: opacity .25s ease, transform .25s ease;
}
.topbar.scrolled .brand { opacity: 1; transform: none; }
.topbar nav { margin-left: auto; min-width: 0; display: flex; gap: 2px; overflow-x: auto; scrollbar-width: none; }
.topbar nav::-webkit-scrollbar { display: none; }
.topbar nav a {
  color: var(--ink-2); text-decoration: none; font-size: 15px; font-weight: 500;
  padding: 6px 10px; border-radius: 8px; white-space: nowrap;
}
.topbar nav a:hover { background: var(--surface-2); color: var(--ink); }
.topbar nav a.active { color: var(--accent-ink); background: var(--accent-wash); }

.theme-toggle {
  flex: none; width: 36px; height: 36px; border-radius: 9px; border: 1px solid var(--hair);
  background: var(--surface); color: var(--ink-2); display: grid; place-items: center; cursor: pointer;
}
.theme-toggle:hover { color: var(--ink); }
.theme-toggle svg { width: 17px; height: 17px; }
.theme-toggle .moon { display: none; }
:root[data-theme="dark"] .theme-toggle .sun { display: none; }
:root[data-theme="dark"] .theme-toggle .moon { display: block; }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .theme-toggle .sun { display: none; }
  :root:not([data-theme="light"]) .theme-toggle .moon { display: block; }
}

/* the brand only fits beside the nav on wide screens */
@media (max-width: 980px) { .topbar .brand { display: none; } }
@media (max-width: 760px) {
  .topbar nav { margin-left: 0; }
  .topbar .wrap { gap: 8px; }
  .inst-logo { width: 32px; height: 32px; border-radius: 7px; }
  .topbar nav a { padding: 5px 8px; font-size: 14px; }
  .theme-toggle { width: 32px; height: 32px; }
  .theme-toggle { margin-left: auto; }
}

/* ---------- hero ---------- */

.hero { padding: 20px 0 24px; text-align: center; }

/* Title card in the HERBench style: a sky-to-teal gradient with white type, in both themes. */
.hero-card {
  position: relative; isolation: isolate; overflow: hidden; color: #fff;
  padding: clamp(32px, 4.5vw, 48px) clamp(16px, 3vw, 32px) clamp(28px, 3.5vw, 40px);
  border-radius: 16px; background: var(--hero-grad); box-shadow: var(--hero-shadow);
}
.hero-card::before {
  content: ""; position: absolute; inset: 0; z-index: -1; pointer-events: none;
  background:
    radial-gradient(560px 280px at 10% 0%, rgba(255, 255, 255, 0.13), transparent 70%),
    radial-gradient(520px 320px at 96% 100%, rgba(94, 234, 212, 0.20), transparent 70%);
}
.hero-card :focus-visible { outline-color: #fff; }
.hero-card ::selection { background: rgba(255, 255, 255, 0.3); }

.eyebrow {
  display: inline-flex; align-items: center; gap: 8px; padding: 5px 13px; border-radius: 999px;
  font-size: 12.5px; font-weight: 600; letter-spacing: 0.06em; text-transform: uppercase;
  color: #fff; background: rgba(255, 255, 255, 0.14); border: 1px solid rgba(255, 255, 255, 0.22);
}
.eyebrow::before { content: ""; flex: none; width: 7px; height: 7px; background: #5eead4; border-radius: 50%; }

.hero h1 {
  font-family: var(--serif); font-weight: 600; letter-spacing: -0.02em; line-height: 1.04;
  font-size: clamp(2.1rem, 5vw, 3.2rem); margin: 14px 0 6px;
}
.hero .subtitle {
  font-family: var(--serif); font-weight: 400; font-size: clamp(1.25rem, 2.6vw, 1.65rem);
  line-height: 1.25; color: rgba(255, 255, 255, 0.92); margin: 0 auto; max-width: 760px; letter-spacing: -0.01em;
}

.authors { margin: 22px 0 10px; font-size: 16px; display: flex; flex-wrap: wrap; justify-content: center; gap: 8px 10px; }
.authors .author {
  white-space: nowrap; font-weight: 500; padding: 4px 13px; border-radius: 999px;
  background: rgba(255, 255, 255, 0.14); border: 1px solid rgba(255, 255, 255, 0.2);
}
.authors sup, .affils sup { color: #a5f3fc; font-weight: 600; margin-left: 1px; }
.affils { color: rgba(255, 255, 255, 0.9); font-size: 15px; display: flex; flex-wrap: wrap; justify-content: center; gap: 2px 22px; }

.links { display: flex; flex-wrap: wrap; justify-content: center; gap: 10px; margin: 22px 0 0; }
.btn {
  display: inline-flex; align-items: center; gap: 7px; height: 42px; padding: 0 18px;
  border-radius: 999px; font-size: 15.5px; font-weight: 600; text-decoration: none;
  background: #fff; color: #0b5563; border: 1px solid #fff;
  transition: transform .15s ease, box-shadow .15s ease;
}
.btn:hover { transform: translateY(-1px); box-shadow: 0 8px 20px rgba(0, 0, 0, 0.18); text-decoration: none; }
.btn svg { width: 17px; height: 17px; flex: none; }
.btn.ghost { background: rgba(255, 255, 255, 0.12); color: #fff; border-color: rgba(255, 255, 255, 0.4); }
.btn.soon { background: transparent; color: rgba(255, 255, 255, 0.8); border: 1px dashed rgba(255, 255, 255, 0.5); cursor: default; }
.btn.soon:hover { transform: none; box-shadow: none; }
.btn.soon small { font-weight: 500; font-size: 12.5px; }
/* phone: keep two author pills per row */
@media (max-width: 520px) {
  .eyebrow { font-size: 11px; letter-spacing: 0.04em; }
  .authors { font-size: 14.5px; gap: 7px; }
  .authors .author { padding: 3px 11px; }
  .affils { font-size: 13.5px; }
  .btn { height: 38px; padding: 0 14px; font-size: 14.5px; }
}

/* ---------- teaser ---------- */

.teaser { margin: 32px auto 0; max-width: var(--teaser); }
/* The video has its own dark background in both themes; the rounded frame keeps it from reading as a bleed. */
.teaser-video {
  display: block; width: 100%; height: auto; aspect-ratio: 16 / 9;
  border-radius: var(--radius); background: #0b1628; box-shadow: var(--shadow);
}
.paper-fig {
  background: #ffffff; border-radius: var(--radius); border: 1px solid var(--hair);
  padding: clamp(10px, 2vw, 22px); box-shadow: var(--shadow);
}
.paper-fig img { width: 100%; }
.paper-fig a { display: block; cursor: zoom-in; }
figcaption, .caption {
  color: var(--ink-2); font-size: 0.93em; line-height: 1.6; margin: 12px auto 0; max-width: var(--measure);
}
figcaption strong, .caption strong { color: var(--ink); }
.teaser figcaption { text-align: center; }

.tldr {
  margin: 24px auto 0; max-width: var(--measure); padding: 16px 20px; border-radius: var(--radius);
  background: linear-gradient(120deg, color-mix(in srgb, var(--sky) 10%, var(--surface)), color-mix(in srgb, var(--teal) 11%, var(--surface)));
  border: 1px solid color-mix(in srgb, var(--accent) 26%, var(--hair));
  font-size: 17px; line-height: 1.6;
}
.tldr b {
  display: inline-block; margin-right: 8px; padding: 1px 10px; border-radius: 999px; vertical-align: 1px;
  background: var(--hero-grad); color: #fff; font-size: 13px; font-weight: 700; letter-spacing: 0.03em;
}

/* ---------- sections ---------- */

section.block { padding: 40px 0 4px; }
section.block + section.block { border-top: 1px solid var(--hair); margin-top: 36px; }

.kicker {
  display: inline-block; padding: 4px 13px; border-radius: 999px; margin: 0 0 10px;
  font-size: 13px; font-weight: 650; letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--hue-ink, var(--accent-ink)); background: color-mix(in srgb, var(--hue, var(--accent)) 13%, transparent);
}
h2 {
  font-family: var(--serif); font-weight: 600; font-size: clamp(1.65rem, 3vw, 2rem);
  line-height: 1.15; letter-spacing: -0.015em; margin: 0 0 14px;
}
.block h2::after {
  content: ""; display: block; width: 46px; height: 3px; margin-top: 10px; border-radius: 3px;
  background: linear-gradient(90deg, var(--hue, var(--accent)), color-mix(in srgb, var(--hue, var(--accent)) 15%, transparent));
}
h3 {
  font-family: var(--serif); font-weight: 600; font-size: clamp(1.3rem, 2.2vw, 1.45rem);
  line-height: 1.25; letter-spacing: -0.01em; margin: 36px auto 10px;
}
h4 { font-size: 16px; font-weight: 650; margin: 0 0 6px; letter-spacing: -0.005em; }

p { margin: 0 0 14px; }
.lead { font-size: 18px; color: var(--ink-2); line-height: 1.6; }
@media (max-width: 640px) { .lead { font-size: 16.5px; } }

/* Abstract: a disclosure between the teaser and the stat tiles, collapsed by default. */
details.abstract {
  margin: 24px auto 0; max-width: var(--measure); text-align: left;
  border-radius: var(--radius); box-shadow: var(--shadow);
  background: color-mix(in srgb, var(--hue, var(--accent)) 6%, var(--surface));
  border: 1px solid color-mix(in srgb, var(--hue, var(--accent)) 24%, var(--hair));
}
details.abstract summary {
  cursor: pointer; list-style: none; display: flex; align-items: center; gap: 10px;
  padding: 13px 22px; border-radius: var(--radius);
  font-family: var(--serif); font-size: 19px; font-weight: 600; letter-spacing: -0.01em; color: var(--ink);
}
details.abstract summary::-webkit-details-marker { display: none; }
details.abstract summary::before {
  content: "▸"; font-size: 14px; color: var(--hue-ink, var(--accent-ink)); transition: transform .15s ease;
}
details.abstract[open] summary::before { transform: rotate(90deg); }
details.abstract summary:hover .hint { color: var(--hue-ink, var(--accent-ink)); }
details.abstract .hint { margin-left: auto; font-family: var(--sans); font-size: 13.5px; font-weight: 600; color: var(--muted); }
details.abstract .when-open, details.abstract[open] .when-closed { display: none; }
details.abstract[open] .when-open { display: inline; }
details.abstract p { margin: 0; padding: 0 28px 20px; text-align: justify; hyphens: auto; }
@media (max-width: 640px) {
  details.abstract summary { padding: 12px 16px; }
  details.abstract p { padding: 0 16px 16px; text-align: left; }
}

/* ---------- stat tiles ---------- */

.stats { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 12px; margin: 28px 0 0; }
.stats.three { grid-template-columns: repeat(3, minmax(0, 1fr)); }
@media (max-width: 900px) { .stats { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 520px) { .stats, .stats.three { grid-template-columns: minmax(0, 1fr); } }

.stat {
  position: relative; border-radius: var(--radius); padding: 18px 16px 14px; box-shadow: var(--shadow); overflow: hidden;
  background: color-mix(in srgb, var(--hue, var(--accent)) 6%, var(--surface));
  border: 1px solid color-mix(in srgb, var(--hue, var(--accent)) 22%, var(--hair));
}
.stat::before { content: ""; position: absolute; left: 0; top: 0; right: 0; height: 3px; background: var(--hue, var(--accent)); }
.stat .label { font-size: 13.5px; font-weight: 600; color: var(--muted); letter-spacing: 0.01em; margin-bottom: 6px; }
.stat .value { font-size: clamp(1.7rem, 2.8vw, 2.1rem); font-weight: 650; letter-spacing: -0.025em; line-height: 1.1; color: var(--hue-ink, var(--ink)); }
.stat .value .unit { font-size: 0.55em; font-weight: 600; color: var(--ink-2); margin-left: 3px; letter-spacing: 0; }
.stat .desc { font-size: 14.5px; color: var(--ink-2); margin-top: 8px; line-height: 1.5; }
.stat .ci { font-size: 13px; color: var(--muted); margin-top: 2px; font-variant-numeric: tabular-nums; }

/* ---------- concept cards ---------- */

.cards { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; margin: 22px 0 8px; }
.cards.two { grid-template-columns: repeat(2, minmax(0, 1fr)); }
@media (max-width: 860px) { .cards, .cards.two { grid-template-columns: minmax(0, 1fr); } }
.card {
  border-radius: var(--radius); padding: 18px 18px 16px; box-shadow: var(--shadow);
  --card-bg: color-mix(in srgb, var(--hue, var(--surface)) 4%, var(--surface));
  /* a hue strip along the top edge, clipped by the radius */
  background: linear-gradient(var(--hue, transparent), var(--hue, transparent)) top / 100% 3px no-repeat, var(--card-bg);
  border: 1px solid color-mix(in srgb, var(--hue, var(--hair)) 20%, var(--hair));
}
.card p { font-size: 15px; color: var(--ink-2); margin: 0 0 10px; line-height: 1.6; }
.card p:last-child { margin-bottom: 0; }
.card .icon {
  width: 32px; height: 32px; border-radius: 8px; display: grid; place-items: center; margin-bottom: 12px;
  background: color-mix(in srgb, var(--hue, var(--muted)) 15%, transparent); color: var(--hue-ink, var(--ink-2));
}
.card .icon svg { width: 17px; height: 17px; }
.card .tag {
  display: inline-block; font-size: 12px; font-weight: 650; letter-spacing: 0.06em; text-transform: uppercase;
  color: var(--hue-ink, var(--muted)); margin-bottom: 4px;
}

/* finding list */
.findings { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; margin: 20px 0 8px; }
@media (max-width: 860px) { .findings { grid-template-columns: minmax(0, 1fr); } }
.finding .big { font-size: 25px; font-weight: 650; letter-spacing: -0.02em; line-height: 1.15; margin: 2px 0 8px; color: var(--hue-ink, var(--ink)); }
.finding .big .vs { font-size: 15px; font-weight: 500; color: var(--muted); letter-spacing: 0; margin: 0 4px; }

/* ---------- figure panels & charts ---------- */

.panel {
  background: var(--surface); border: 1px solid var(--hair); border-radius: var(--radius);
  padding: 18px 18px 12px; box-shadow: var(--shadow); margin: 22px 0 0;
}
@media (max-width: 640px) { .panel { padding: 14px 12px 10px; } }
.panel-head { display: flex; flex-wrap: wrap; align-items: baseline; justify-content: space-between; gap: 6px 20px; margin-bottom: 6px; }
.panel-title { font-weight: 650; font-size: 16.5px; letter-spacing: -0.005em; margin: 0; }
.panel-sub { font-size: 14px; color: var(--muted); margin: 2px 0 0; }

.legend { display: flex; flex-wrap: wrap; gap: 6px 18px; font-size: 13.5px; color: var(--ink-2); margin: 12px 0 4px; }
.legend .key { display: inline-flex; align-items: center; gap: 7px; }
.legend svg { width: 16px; height: 12px; flex: none; overflow: visible; }

.chart { position: relative; width: 100%; margin-top: 6px; }
.chart svg { display: block; width: 100%; overflow: visible; font-family: var(--sans); }

/* svg roles */
.chart .grid line { stroke: var(--grid); stroke-width: 1; shape-rendering: crispEdges; }
.chart .axis line, .chart .axis path { stroke: var(--axis); stroke-width: 1; shape-rendering: crispEdges; }
.chart .ref-strong { stroke: var(--ink-2); stroke-width: 1; opacity: .7; }
.chart text { fill: var(--muted); font-size: 12px; }
.chart text.tick { font-variant-numeric: tabular-nums; }
.chart text.row-label { fill: var(--ink); font-size: 13.5px; }
.chart text.row-sub { fill: var(--muted); font-size: 11.5px; }
.chart text.axis-title { fill: var(--ink-2); font-size: 13px; font-weight: 500; }
.chart text.value { fill: var(--ink); font-size: 13px; font-weight: 600; font-variant-numeric: tabular-nums; }
.chart text.annot { fill: var(--ink-2); font-size: 12.5px; }
.chart text.annot-strong { fill: var(--ink); font-size: 12.5px; font-weight: 600; }

.chart .m-ready { fill: var(--accent); stroke: var(--surface); stroke-width: 2; }
.chart .m-conf { fill: var(--conf); stroke: var(--surface); stroke-width: 2; }
.chart .m-gray { fill: var(--muted); stroke: var(--surface); stroke-width: 2; }
.chart .m-cross { stroke: var(--muted); stroke-width: 2; stroke-linecap: round; fill: none; }
.chart .ci-ready { stroke: var(--accent); stroke-width: 2; stroke-linecap: round; }
.chart .span { stroke: var(--hair); stroke-width: 6; stroke-linecap: round; }
.chart .row-hit { fill: transparent; cursor: default; }
.chart .row-hit:hover, .chart .row-hit.on { fill: var(--surface-2); }
.chart .row-hit:focus { outline: none; }
.chart .row-hit:focus-visible { fill: var(--surface-2); stroke: var(--accent); stroke-width: 1.5; }

/* legend glyphs share classes */
.legend .m-ready { fill: var(--accent); }
.legend .m-conf { fill: var(--conf); }
.legend .m-gray { fill: var(--muted); }
.legend .m-cross { stroke: var(--muted); stroke-width: 2; stroke-linecap: round; fill: none; }

/* tooltip */
.tooltip {
  position: absolute; z-index: 20; pointer-events: none; min-width: 190px; max-width: 320px;
  background: var(--surface); color: var(--ink); border: 1px solid var(--hair); border-radius: 10px;
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.14); padding: 10px 12px; font-size: 13px; line-height: 1.45;
  opacity: 0; transform: translateY(4px); transition: opacity .12s ease, transform .12s ease;
}
.tooltip.show { opacity: 1; transform: none; }
.tooltip .tt-title { font-weight: 600; margin-bottom: 6px; color: var(--ink); }
.tooltip .tt-sub { color: var(--muted); font-size: 12px; margin: -4px 0 6px; }
.tooltip .tt-row { display: grid; grid-template-columns: 14px auto 1fr; align-items: center; gap: 8px; }
.tooltip .tt-row + .tt-row { margin-top: 2px; }
.tooltip .tt-val { font-weight: 650; font-variant-numeric: tabular-nums; color: var(--ink); white-space: nowrap; }
.tooltip .tt-name { color: var(--ink-2); font-size: 12.5px; }
.tooltip .tt-key { width: 14px; height: 2.5px; border-radius: 2px; }

/* data table disclosure */
details.table-view { margin-top: 10px; border-top: 1px solid var(--hair); padding-top: 8px; }
details.table-view summary {
  cursor: pointer; font-size: 13.5px; font-weight: 600; color: var(--ink-2); list-style: none;
  display: inline-flex; align-items: center; gap: 6px; padding: 4px 0;
}
details.table-view summary::-webkit-details-marker { display: none; }
details.table-view summary::before { content: "▸"; font-size: 11px; transition: transform .15s ease; }
details.table-view[open] summary::before { transform: rotate(90deg); }

/* ---------- tables ---------- */

.table-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; margin-top: 10px; }
table.data { width: 100%; border-collapse: collapse; font-size: 14.5px; }
table.data th, table.data td { padding: 7px 9px; text-align: left; border-bottom: 1px solid var(--hair); white-space: nowrap; }
table.data thead th { font-size: 13px; font-weight: 650; color: var(--muted); border-bottom: 1px solid var(--axis); vertical-align: bottom; }
table.data td.n, table.data th.n { text-align: right; font-variant-numeric: tabular-nums; }
table.data tr.ours td { background: var(--accent-wash); font-weight: 600; }
table.data tr.ours td:first-child { box-shadow: inset 3px 0 0 var(--accent); }
table.data tr.group td { border-bottom-color: var(--axis); }
table.data .dim { color: var(--muted); }
table.data caption { caption-side: bottom; text-align: left; font-size: 13.5px; color: var(--muted); padding-top: 10px; }

/* ---------- labelling diagram ---------- */

.diagram { margin: 22px 0 0; }
.tl-axis { display: grid; grid-template-columns: 200px 1fr; gap: 14px; align-items: end; }
.tl-row { display: grid; grid-template-columns: 200px 1fr; gap: 14px; align-items: center; padding: 7px 0; }
.tl-row + .tl-row { border-top: 1px dashed var(--hair); }
.tl-name { font-size: 14px; font-weight: 600; line-height: 1.3; }
.tl-name small { display: block; font-weight: 500; color: var(--muted); font-size: 12.5px; }
.tl-track { position: relative; height: 30px; }
.tl-track .rail { position: absolute; left: 0; right: 0; top: 50%; height: 2px; margin-top: -1px; background: var(--hair); border-radius: 2px; }
.tl-hull-col { position: absolute; top: -8px; bottom: -8px; background: var(--accent-wash); border-left: 1px solid color-mix(in srgb, var(--accent) 45%, transparent); border-right: 1px solid color-mix(in srgb, var(--accent) 45%, transparent); }
.tl-seg { position: absolute; top: 7px; height: 16px; border-radius: 4px; background: var(--accent); }
.tl-win {
  position: absolute; top: 3px; height: 24px; border-radius: 7px; display: flex; align-items: center; justify-content: center;
  font-size: 12.5px; font-weight: 600; letter-spacing: 0.01em; white-space: nowrap;
}
.tl-win.ready { background: var(--accent); color: #fff; }
.tl-win.not { background: var(--surface-2); border: 1.5px solid var(--axis); color: var(--ink-2); }
.tl-win.partial { background: transparent; border: 1.5px dashed var(--muted); color: var(--muted); }
.tl-scale { display: flex; justify-content: space-between; font-size: 12.5px; color: var(--muted); padding-top: 4px; }
.tl-rows { position: relative; }
.tl-rows .tl-hull-band { position: absolute; top: 0; bottom: 0; pointer-events: none; }
@media (max-width: 640px) {
  .tl-axis, .tl-row { grid-template-columns: 1fr; gap: 4px; }
  .tl-axis > span:first-child { display: none; }
  .tl-hull-col { top: 0; bottom: 0; }
  .tl-win { font-size: 11.5px; }
}

/* ---------- crossed quad ---------- */

.quad-wrap { display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr); gap: 24px; align-items: center; }
@media (max-width: 900px) { .quad-wrap { grid-template-columns: minmax(0, 1fr); } }
.quad { display: grid; grid-template-columns: 110px 1fr 1fr; gap: 7px; }
@media (max-width: 480px) { .quad { grid-template-columns: 86px 1fr 1fr; gap: 6px; } }
.quad .qh { font-size: 13px; font-weight: 600; color: var(--ink-2); text-align: center; line-height: 1.3; padding: 4px 0 2px; }
.quad .qh small { display: block; color: var(--muted); font-weight: 500; font-size: 11.5px; }
.quad .ql { font-size: 13.5px; font-weight: 600; display: flex; align-items: center; line-height: 1.3; }
.quad .ql small { display: block; color: var(--muted); font-weight: 500; font-size: 11.5px; }
.quad .cell {
  border-radius: 9px; padding: 12px 8px; text-align: center; font-size: 14px; font-weight: 650;
  border: 1.5px solid var(--hair); background: var(--surface-2); color: var(--ink-2);
}
.quad .cell.ready { background: var(--accent-wash-2); border-color: color-mix(in srgb, var(--accent) 55%, transparent); color: var(--accent-ink); }
.quad .cell span { display: block; font-size: 11.5px; font-weight: 500; opacity: .85; margin-top: 2px; }
.strip { display: flex; gap: 2px; justify-content: center; margin: 6px auto 4px; }
.strip i { width: 10px; height: 12px; border-radius: 2px; background: var(--axis); display: block; }
.strip i.ev-a { background: var(--accent); }
.strip i.ev-b { background: var(--ink-2); }
.did {
  margin-top: 12px; padding: 10px 12px; border-radius: 9px; background: var(--surface-2);
  font-family: var(--mono); font-size: 13px; color: var(--ink); overflow-x: auto; white-space: nowrap;
}

/* ---------- gating schematic ---------- */

.mini-bars { display: flex; align-items: flex-end; gap: 6px; height: 104px; margin: 20px 0 8px; position: relative; padding-bottom: 22px; }
.mini-bars .b { flex: 1; border-radius: 4px 4px 0 0; background: var(--axis); position: relative; min-width: 0; }
.mini-bars .b.hit { background: var(--accent); }
.mini-bars .b.ghost { background: transparent; border: 1.5px dashed var(--axis); border-bottom: none; }
.mini-bars .b em {
  position: absolute; left: 50%; bottom: calc(100% + 4px); transform: translateX(-50%);
  font-style: normal; font-size: 11.5px; font-weight: 650; color: var(--accent-ink); white-space: nowrap;
}
.mini-bars .thr { position: absolute; left: 0; right: 0; height: 0; border-top: 1.5px solid var(--ink-2); }
.mini-bars .thr span { position: absolute; left: 0; top: -18px; font-size: 11.5px; color: var(--ink-2); background: var(--card-bg, var(--surface)); padding: 0 4px; }
.mini-bars .deadline { position: absolute; top: -4px; bottom: 22px; width: 0; border-left: 1.5px solid var(--ink-2); }
.mini-bars .deadline span { position: absolute; top: -2px; left: 5px; font-size: 11.5px; color: var(--ink-2); white-space: nowrap; }
.mini-bars .t-axis { position: absolute; left: 0; right: 0; bottom: 0; font-size: 11.5px; color: var(--muted); display: flex; justify-content: space-between; }

/* ---------- misc ---------- */

.note { font-size: 14px; color: var(--muted); }
.pill {
  display: inline-block; font-size: 12.5px; font-weight: 600; padding: 2px 10px; border-radius: 999px;
  background: var(--surface-2); color: var(--ink-2); border: 1px solid var(--hair); vertical-align: middle;
}
.models { display: flex; flex-wrap: wrap; gap: 6px; margin: 10px 0 0; }
.models .pill {
  font-weight: 500; color: var(--sky-ink);
  background: color-mix(in srgb, var(--sky) 10%, var(--surface)); border-color: color-mix(in srgb, var(--sky) 28%, var(--hair));
}

ul.clean { padding-left: 0; list-style: none; margin: 0; }
ul.clean li { position: relative; padding-left: 20px; margin: 0 0 10px; color: var(--ink-2); }
ul.clean li::before { content: ""; position: absolute; left: 4px; top: 0.72em; width: 7px; height: 7px; border-radius: 50%; background: var(--hue, var(--axis)); }

.callout {
  margin-top: 18px; padding: 16px 20px 6px; border-radius: var(--radius);
  background: color-mix(in srgb, var(--hue, var(--accent)) 7%, var(--surface));
  border: 1px solid color-mix(in srgb, var(--hue, var(--accent)) 26%, var(--hair));
  border-left: 4px solid var(--hue, var(--accent));
}

.bibtex { position: relative; margin-top: 16px; }
.bibtex pre {
  margin: 0; padding: 18px 18px 16px; border: 1px solid var(--hair); border-radius: var(--radius);
  background: linear-gradient(90deg, var(--sky), var(--teal)) top / 100% 3px no-repeat, var(--surface);
  font-family: var(--mono); font-size: 13.5px; line-height: 1.65; overflow-x: auto; color: var(--ink);
}
.copy-btn {
  position: absolute; top: 9px; right: 9px; height: 28px; padding: 0 10px; border-radius: 7px; cursor: pointer;
  border: 1px solid var(--hair); background: var(--surface-2); color: var(--ink-2); font: 600 13px var(--sans);
  display: inline-flex; align-items: center; gap: 6px;
}
.copy-btn:hover { color: var(--ink); }
.copy-btn svg { width: 13px; height: 13px; }

footer { position: relative; margin-top: 64px; padding: 24px 0 36px; color: var(--muted); font-size: 14px; }
footer::before { content: ""; position: absolute; left: 0; right: 0; top: 0; height: 3px; background: linear-gradient(90deg, var(--sky), var(--teal), var(--violet)); }
footer .wrap { display: flex; flex-wrap: wrap; gap: 8px 24px; justify-content: space-between; }

@media print {
  .topbar, .theme-toggle, .copy-btn { display: none !important; }
  .panel, .card, .stat, .paper-fig { box-shadow: none; }
  section.block { break-inside: avoid-page; }
}