/* Senses Wide Shut — IMAVB project page
   Hand-built. Two rooms: the "screening room" (ink) and the "reading room" (paper). */

:root {
  --ink: #0B0D12;
  --ink-2: #12151C;
  --ink-3: #1A1E27;
  --paper: #EDE8DF;
  --paper-2: #F5F1EA;
  --paper-3: #E3DDD1;
  --muted: #8B93A1;

  --vision: #5B9BF0;
  --audio: #F2994A;
  --false: #E5484D;
  --correct: #3FB27F;
  --probe: #A78BFA;

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

  --gutter: clamp(16px, 4vw, 48px);
  --max: 1180px;
  --radius: 14px;
  --ease: cubic-bezier(.2, .7, .1, 1);
}

/* room tokens */
.sec--ink, .hero, .foot, body {
  --bg: var(--ink);
  --fg: var(--paper);
  --fg-2: #C9C4BA;
  --fg-3: #9AA1AE;
  --line: rgba(237, 232, 223, .12);
  --card: var(--ink-2);
  --c-vision: var(--vision);
  --c-audio: var(--audio);
  --c-false: #F0666A;
  --c-correct: #4CC48E;
  --c-probe: #B7A0FF;
}
.sec--paper {
  --bg: var(--paper);
  --fg: #16181E;
  --fg-2: #353944;
  --fg-3: #5B606B;
  --line: rgba(22, 24, 30, .13);
  --card: var(--paper-2);
  /* darker brand variants so text and marks keep AA contrast on paper */
  --c-vision: #2F6EC8;
  --c-audio: #B9601B;
  --c-false: #C62F35;
  --c-correct: #1F7F55;
  --c-probe: #6A48D6;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--ink);
  color: var(--paper);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}
img, video, svg { display: block; max-width: 100%; }
a { color: inherit; }
button { font: inherit; color: inherit; }
sup { font-size: .62em; line-height: 0; }
em { font-style: italic; }
.mono { font-family: var(--mono); font-size: .78em; letter-spacing: .02em; }
.serif { font-family: var(--serif); }
.skip { position: absolute; left: -999px; top: 8px; background: var(--paper); color: var(--ink); padding: 8px 12px; border-radius: 8px; z-index: 100; }
.skip:focus { left: 8px; }
:focus-visible { outline: 2px solid var(--probe); outline-offset: 3px; border-radius: 6px; }

.c-probe { color: var(--c-probe); }
.c-false { color: var(--c-false); }

.wrap { max-width: var(--max); margin: 0 auto; padding: 0 var(--gutter); }
.wrap--text { max-width: 860px; }

/* ------------------------------------------------------------------ film grain */
body::after {
  content: "";
  position: fixed; inset: -50%;
  pointer-events: none;
  z-index: 60;
  opacity: .07;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='220' height='220'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='2' stitchTiles='stitch'/><feColorMatrix values='0 0 0 0 .5  0 0 0 0 .5  0 0 0 0 .5  0 0 0 1.4 -.2'/></filter><rect width='100%' height='100%' filter='url(%23n)'/></svg>");
  animation: grain 1.2s steps(6) infinite;
  mix-blend-mode: overlay;
}
@keyframes grain {
  0% { transform: translate(0, 0); }
  20% { transform: translate(-3%, 2%); }
  40% { transform: translate(2%, -3%); }
  60% { transform: translate(-2%, -1%); }
  80% { transform: translate(3%, 3%); }
  100% { transform: translate(0, 0); }
}

/* ------------------------------------------------------------------ HERO */
.hero {
  position: relative;
  min-height: 100svh;
  display: grid;
  grid-template-rows: auto 1fr auto;
  background: #000;
  color: var(--paper);
  overflow: hidden;
}
.hero__bar {
  position: relative; z-index: 3;
  background: #000;
  padding: 18px var(--gutter);
}
.hero__bar--top {
  display: flex; justify-content: space-between; align-items: center;
  color: var(--muted);
  font-size: 15px;
  letter-spacing: .12em;
}
.hero__bar-r { color: var(--paper); }
.hero__screen {
  position: relative;
  min-height: 46vh;
  display: grid;
  place-items: center;
  isolation: isolate;
}
.hero__video {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  object-fit: cover;
  z-index: -2;
  filter: saturate(.8) contrast(1.05);
}
.hero__shade {
  position: absolute; inset: 0; z-index: -1;
  background:
    radial-gradient(120% 90% at 50% 50%, rgba(0,0,0,.25) 0%, rgba(0,0,0,.72) 70%, rgba(0,0,0,.92) 100%),
    linear-gradient(180deg, rgba(0,0,0,.65) 0%, rgba(0,0,0,.25) 35%, rgba(0,0,0,.35) 65%, rgba(0,0,0,.85) 100%);
}
.hero__content {
  text-align: center;
  padding: 48px var(--gutter);
  max-width: 1100px;
}
.badge {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--mono);
  font-size: 12.5px; letter-spacing: .16em; text-transform: uppercase;
  text-decoration: none;
  padding: 7px 14px 7px 12px;
  border: 1px solid rgba(237,232,223,.35);
  border-radius: 999px;
  background: rgba(11,13,18,.45);
  backdrop-filter: blur(6px);
  margin-bottom: 26px;
  opacity: 0; animation: rise .9s var(--ease) .2s forwards;
}
.badge__dot { width: 7px; height: 7px; border-radius: 50%; background: var(--false); box-shadow: 0 0 10px var(--false); animation: rec 1.6s ease-in-out infinite; }
@keyframes rec { 50% { opacity: .25; } }
.hero__title {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(56px, 11.5vw, 168px);
  line-height: .92;
  letter-spacing: -.015em;
  margin: 0;
  text-shadow: 0 2px 40px rgba(0,0,0,.6);
  opacity: 0; animation: rise 1.2s var(--ease) .35s forwards;
}
.hero__title em { color: var(--paper); font-style: italic; }
.hero__subtitle {
  font-family: var(--serif);
  font-style: italic;
  font-size: clamp(21px, 2.6vw, 34px);
  color: #DCD6CB;
  margin: 18px 0 0;
  opacity: 0; animation: rise 1.2s var(--ease) .55s forwards;
}
@keyframes rise { from { opacity: 0; transform: translateY(16px); } to { opacity: 1; transform: none; } }

.hero__eye {
  position: absolute; right: var(--gutter); bottom: 22px;
  width: 64px; opacity: .85;
}
.eye { overflow: visible; }
.eye__outline { fill: none; stroke: var(--paper); stroke-width: 3; stroke-linejoin: round; }
.eye__iris { fill: var(--probe); }
.eye__pupil { fill: var(--ink); }
.eye__lid { fill: #000; stroke: var(--paper); stroke-width: 3; stroke-linejoin: round; transform-origin: 60px 30px; transform: scaleY(0); animation: blink 7s ease-in-out 2s infinite; }
@keyframes blink { 0%, 86%, 100% { transform: scaleY(0); } 90%, 95% { transform: scaleY(1); } }

.hero__bar--bottom {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 24px 40px;
  align-items: end;
  padding-top: 26px; padding-bottom: 30px;
}
.authors { opacity: 0; animation: rise 1s var(--ease) .75s forwards; }
.authors__names { margin: 0; font-size: 17px; font-weight: 500; display: flex; flex-wrap: wrap; gap: 4px 18px; }
.authors__names sup { color: var(--muted); font-weight: 400; margin-left: 1px; }
.authors__aff { margin: 8px 0 0; color: var(--fg-2); font-size: 14.5px; display: flex; flex-wrap: wrap; gap: 2px 16px; }
.authors__aff sup { color: var(--muted); margin-right: 2px; }
.authors__note { margin: 6px 0 0; color: var(--muted); font-size: 13.5px; }

.links { display: flex; flex-wrap: wrap; gap: 8px; justify-content: flex-end; max-width: 460px; opacity: 0; animation: rise 1s var(--ease) .9s forwards; }
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 9px 15px;
  border-radius: 999px;
  border: 1px solid rgba(237,232,223,.28);
  background: rgba(237,232,223,.04);
  color: var(--paper);
  text-decoration: none;
  font-size: 14.5px; font-weight: 500;
  cursor: pointer;
  transition: background .25s var(--ease), border-color .25s var(--ease), transform .25s var(--ease);
}
.btn svg { width: 17px; height: 17px; flex: none; }
.btn__emoji { font-size: 16px; line-height: 1; }
.btn:hover { background: var(--paper); color: var(--ink); border-color: var(--paper); transform: translateY(-1px); }

/* ------------------------------------------------------------------ sections */
.sec { position: relative; background: var(--bg); color: var(--fg); padding: clamp(72px, 10vw, 136px) 0; }
.sec--tight { padding-top: clamp(24px, 4vw, 48px); }
.sec--paper + .sec--ink, .sec--ink + .sec--paper { box-shadow: 0 -1px 0 rgba(0,0,0,.2); }
.kicker {
  display: flex; align-items: center; gap: 12px;
  margin: 0 0 22px;
  font-family: var(--mono); font-size: 12.5px; letter-spacing: .18em; text-transform: uppercase;
  color: var(--fg-3);
}
.kicker span { color: var(--fg); padding-right: 12px; border-right: 1px solid var(--line); }
.h2 {
  font-family: var(--serif); font-weight: 400;
  font-size: clamp(38px, 5.4vw, 70px);
  line-height: 1.02; letter-spacing: -.01em;
  margin: 0 0 24px;
}
.h2 em { font-style: italic; }
.h2--sm { font-size: clamp(32px, 3.6vw, 48px); }
.h3 { font-family: var(--sans); font-weight: 600; font-size: 18px; margin: 0 0 10px; letter-spacing: -.005em; }
.lead { font-size: clamp(17px, 1.5vw, 19px); color: var(--fg-2); max-width: 720px; margin: 0 0 40px; }
.small { font-size: 15px; color: var(--fg-3); }
.note { color: var(--fg-3); margin-top: 18px; font-size: 12.5px; }
.note a { color: var(--fg-2); }

/* ------------------------------------------------------------------ TL;DR */
.tldr { padding-top: clamp(80px, 10vw, 128px); background: radial-gradient(80% 60% at 20% 0%, rgba(167,139,250,.08), transparent 70%), var(--ink); }
.tldr__lede {
  font-family: var(--serif); font-weight: 400;
  font-size: clamp(40px, 6.4vw, 88px);
  line-height: 1.02; letter-spacing: -.012em;
  margin: 0 0 28px; max-width: 1050px;
}
.tldr__lede em { font-style: italic; }
.tldr__body { max-width: 700px; color: var(--fg-2); font-size: clamp(17px, 1.5vw, 19.5px); margin: 0 0 56px; }
.tldr__punch { font-family: var(--serif); font-size: clamp(24px, 2.6vw, 34px); line-height: 1.25; margin: 56px 0 0; max-width: 820px; color: var(--fg); }
.tldr__punch em { color: var(--c-probe); }

.kvs { border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); padding: 30px 0 18px; }
.kvs__row { display: grid; grid-template-columns: 250px 1fr 150px; align-items: center; gap: 26px; padding: 12px 0; }
.kvs__label { display: flex; flex-direction: column; }
.kvs__tag { font-family: var(--mono); font-size: 13px; letter-spacing: .14em; text-transform: uppercase; }
.kvs__desc { font-size: 14.5px; color: var(--fg-3); }
.kvs__row--knows .kvs__tag { color: var(--c-probe); }
.kvs__row--says .kvs__tag { color: var(--c-false); }
.kvs__track { height: 26px; background: rgba(237,232,223,.05); border-radius: 4px; overflow: hidden; position: relative; }
.kvs__track::after { content: ""; position: absolute; inset: 0; background: repeating-linear-gradient(90deg, transparent 0 calc(10% - 1px), rgba(237,232,223,.08) calc(10% - 1px) 10%); }
.kvs__fill { height: 100%; width: calc(var(--v) * 1%); border-radius: 4px; transform-origin: left; transform: scaleX(0); transition: transform 1.6s var(--ease); }
.kvs__row--knows .kvs__fill { background: linear-gradient(90deg, rgba(167,139,250,.35), var(--probe)); box-shadow: 0 0 30px rgba(167,139,250,.35); }
.kvs__row--says .kvs__fill { background: linear-gradient(90deg, rgba(229,72,77,.4), var(--false)); transition-delay: .35s; }
.kvs.in .kvs__fill { transform: scaleX(1); }
.kvs__num { font-family: var(--serif); font-size: clamp(44px, 5vw, 64px); line-height: 1; text-align: right; }
.kvs__num small { font-size: .5em; color: var(--fg-3); }
.kvs__pre { font-family: var(--mono); font-size: 12px; color: var(--fg-3); letter-spacing: .08em; vertical-align: middle; margin-right: 4px; }
.kvs__row--knows .kvs__num { color: var(--c-probe); }
.kvs__row--says .kvs__num { color: var(--c-false); }
.kvs__foot { color: var(--fg-3); margin: 14px 0 0; font-size: 12px; }

/* ------------------------------------------------------------------ video */
.screen {
  position: relative;
  border-radius: 10px; overflow: hidden;
  background: #000;
  box-shadow: 0 40px 120px -30px rgba(0,0,0,.9), 0 0 0 1px rgba(237,232,223,.08);
}
.screen video { width: 100%; aspect-ratio: 16 / 9; background: #000; }

/* ------------------------------------------------------------------ abstract & prints */
.abstract {
  font-size: clamp(17px, 1.45vw, 19px); line-height: 1.72; color: var(--fg-2);
  margin: 0;
  hyphens: auto;
}
.abstract::first-letter { font-family: var(--serif); float: left; font-size: 4.1em; line-height: .82; padding: 6px 12px 0 0; color: var(--fg); }
.print {
  margin: 72px auto 0;
  max-width: 1000px;
  background: #fff;
  padding: clamp(10px, 2vw, 22px);
  border-radius: 6px;
  box-shadow: 0 1px 0 rgba(0,0,0,.05), 0 30px 60px -30px rgba(40,30,10,.35);
}
.print--wide { max-width: 1120px; }
.print img { width: 100%; height: auto; border-radius: 2px; }
.print figcaption { font-size: 14.5px; color: var(--fg-3); margin: 14px 4px 2px; line-height: 1.5; }
.print figcaption .mono { color: var(--fg); margin-right: 6px; }

/* ------------------------------------------------------------------ explorer */
#examples { background: radial-gradient(70% 50% at 90% 10%, rgba(91,155,240,.07), transparent 70%), radial-gradient(60% 50% at 0% 100%, rgba(242,153,74,.06), transparent 70%), var(--ink); }
.explorer__clips { display: flex; gap: 12px; margin-bottom: 22px; overflow-x: auto; padding-bottom: 4px; scrollbar-width: thin; }
.clipbtn {
  flex: 1 1 0; min-width: 150px;
  display: flex; align-items: center; gap: 12px;
  padding: 8px 14px 8px 8px;
  background: var(--card); border: 1px solid var(--line); border-radius: 12px;
  cursor: pointer; text-align: left;
  transition: border-color .25s, background .25s;
}
.clipbtn img { width: 76px; aspect-ratio: 16/9; object-fit: cover; border-radius: 6px; flex: none; opacity: .75; transition: opacity .25s; }
.clipbtn b { display: block; font-family: var(--sans); font-weight: 600; font-size: 14.5px; letter-spacing: 0; }
.clipbtn span { display: block; font-family: var(--mono); font-size: 11.5px; color: var(--fg-3); }
.clipbtn[aria-selected="true"] { border-color: rgba(237,232,223,.55); background: var(--ink-3); }
.clipbtn[aria-selected="true"] img, .clipbtn:hover img { opacity: 1; }

.explorer__grid { display: grid; grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr); gap: 28px; align-items: start; }
.player__frame { border-radius: 10px; overflow: hidden; background: #000; box-shadow: 0 30px 80px -30px rgba(0,0,0,.9), 0 0 0 1px var(--line); }
.player__frame video { width: 100%; aspect-ratio: 16/9; background: #000; }
.player__meta { margin-top: 12px; color: var(--fg-3); font-size: 12.5px; }
.player__cue { margin: 10px 0 0; font-size: 15px; color: var(--fg-2); font-style: italic; font-family: var(--serif); font-size: 19px; line-height: 1.4; }
.player__cue b { font-family: var(--mono); font-style: normal; font-size: 11.5px; letter-spacing: .12em; text-transform: uppercase; color: var(--c-audio); font-weight: 500; margin-right: 8px; }

.matrix { display: grid; grid-template-columns: auto 1fr 1fr; gap: 6px; align-items: center; margin-bottom: 16px; }
.matrix__col { text-align: center; color: var(--fg-3); font-size: 11.5px; text-transform: uppercase; letter-spacing: .12em; }
.matrix__row { display: flex; align-items: center; gap: 6px; font-size: 12px; text-transform: uppercase; letter-spacing: .1em; padding-right: 8px; }
.matrix__row svg { width: 18px; height: 18px; }
.matrix__row.v { color: var(--c-vision); }
.matrix__row.a { color: var(--c-audio); }
.cell {
  height: 44px; border-radius: 9px; cursor: pointer;
  border: 1px solid var(--line);
  background: rgba(237,232,223,.03);
  font-family: var(--mono); font-size: 13px; color: var(--fg-3);
  transition: all .25s var(--ease);
  position: relative;
}
.cell.v:hover, .cell.v[aria-pressed="true"] { border-color: var(--vision); color: var(--paper); }
.cell.a:hover, .cell.a[aria-pressed="true"] { border-color: var(--audio); color: var(--paper); }
.cell.v[aria-pressed="true"] { background: rgba(91,155,240,.18); }
.cell.a[aria-pressed="true"] { background: rgba(242,153,74,.18); }
.cell.mis::after { content: ""; position: absolute; top: 7px; right: 8px; width: 6px; height: 6px; border-radius: 50%; background: var(--false); }

.qcard { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 20px 20px 16px; }
.qcard__head { display: flex; justify-content: space-between; gap: 12px; color: var(--fg-3); font-size: 11.5px; text-transform: uppercase; letter-spacing: .12em; margin-bottom: 10px; }
.qcard__head #exTag.v { color: var(--c-vision); }
.qcard__head #exTag.a { color: var(--c-audio); }
.qcard__q { font-size: 17px; line-height: 1.5; margin: 0 0 14px; color: var(--fg); min-height: 3em; }
.qcard__q mark { background: none; color: inherit; padding: 0 2px; border-radius: 3px; }
.qcard__q mark.ok { box-shadow: inset 0 -2px 0 rgba(237,232,223,.5); }
.qcard__q mark.bad { color: #fff; background: rgba(229,72,77,.28); box-shadow: inset 0 -2px 0 var(--false); animation: flip .6s var(--ease); display: inline; }
@keyframes flip { from { background: rgba(229,72,77,.8); } }
.opts { list-style: none; margin: 0; padding: 0; display: grid; gap: 6px; }
.opt {
  display: grid; grid-template-columns: 28px 1fr 20px; gap: 10px; align-items: center;
  padding: 8px 10px; border-radius: 8px;
  border: 1px solid transparent; background: rgba(237,232,223,.035);
  cursor: pointer; font-size: 15px; line-height: 1.35; text-align: left; width: 100%;
  transition: background .2s, border-color .2s;
}
.opt:hover { background: rgba(237,232,223,.08); }
.opt__k { font-family: var(--mono); font-size: 12.5px; width: 24px; height: 24px; display: grid; place-items: center; border-radius: 6px; border: 1px solid var(--line); color: var(--fg-3); }
.opt--reject .opt__t { color: var(--fg-2); font-style: italic; }
.opt svg { width: 18px; height: 18px; opacity: 0; }
.opt.is-correct { border-color: rgba(63,178,127,.7); background: rgba(63,178,127,.14); }
.opt.is-correct .opt__k { background: var(--correct); border-color: var(--correct); color: #06140d; }
.opt.is-correct svg { opacity: 1; color: var(--c-correct); }
.opt.is-wrong { border-color: rgba(229,72,77,.7); background: rgba(229,72,77,.12); }
.opt.is-wrong svg { opacity: 1; color: var(--c-false); }
.qcard__foot { display: flex; align-items: center; gap: 14px; margin-top: 14px; flex-wrap: wrap; }
.btn--ghost { padding: 7px 13px; font-size: 13.5px; }
.qcard__swap { margin: 0; font-size: 13.5px; color: var(--fg-3); flex: 1 1 200px; }
.qcard__swap b { color: var(--c-false); font-weight: 500; }

/* ------------------------------------------------------------------ benchmark */
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; margin: 0 0 80px; border-top: 1px solid var(--line); }
.stat { padding: 24px 20px 22px 0; border-bottom: 1px solid var(--line); }
.stat:not(:nth-child(4n)) { border-right: 1px solid var(--line); }
.stat:not(:nth-child(4n+1)) { padding-left: 20px; }
.stat dt { font-size: 13.5px; color: var(--fg-3); order: 2; margin-top: 6px; }
.stat { display: flex; flex-direction: column-reverse; justify-content: flex-end; }
.stat dd { margin: 0; font-family: var(--serif); font-size: clamp(44px, 5vw, 66px); line-height: 1; letter-spacing: -.01em; font-variant-numeric: tabular-nums; }
.stat dd small { font-size: .5em; color: var(--fg-3); }

.design { display: grid; grid-template-columns: minmax(0, .85fr) minmax(0, 1.15fr); gap: 48px; align-items: center; }
.design__text p { color: var(--fg-2); margin: 0 0 14px; }
.cats { list-style: none; padding: 0; margin: 20px 0 0; display: flex; flex-wrap: wrap; gap: 6px; }
.cats li { font-family: var(--mono); font-size: 12px; padding: 4px 10px; border: 1px solid var(--line); border-radius: 999px; color: var(--fg-2); background: var(--card); }

.twobytwo { display: grid; grid-template-columns: auto 1fr 1fr; gap: 10px; }
.tbt__col { text-align: center; font-size: 11.5px; text-transform: uppercase; letter-spacing: .12em; color: var(--fg-3); padding-bottom: 2px; }
.tbt__row { display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 6px; font-family: var(--mono); font-size: 11.5px; letter-spacing: .1em; text-transform: uppercase; padding: 0 6px; }
.tbt__row svg { width: 30px; height: 30px; }
.tbt__row.v { color: var(--c-vision); }
.tbt__row.a { color: var(--c-audio); }
.tbt__cell { border-radius: 12px; padding: 16px 16px 14px; background: var(--card); border: 1px solid var(--line); position: relative; display: flex; flex-direction: column; justify-content: space-between; gap: 12px; min-height: 128px; }
.tbt__cell.v { border-left: 3px solid var(--c-vision); }
.tbt__cell.a { border-left: 3px solid var(--c-audio); }
.tbt__cell p { margin: 0; font-family: var(--serif); font-size: 20px; line-height: 1.3; color: var(--fg); }
.tbt__cell mark { background: none; color: inherit; }
.tbt__cell mark.ok { box-shadow: inset 0 -2px 0 rgba(22,24,30,.35); }
.tbt__cell mark.bad { color: var(--c-false); box-shadow: inset 0 -2px 0 var(--c-false); font-style: italic; }
.tbt__ans { font-size: 11.5px; color: var(--fg-3); }
.tbt__cell.mis .tbt__ans { color: var(--c-correct); font-weight: 500; }
.verify { max-width: 760px; margin: 40px auto 0; text-align: center; color: var(--fg-2); font-size: 16.5px; }

/* ------------------------------------------------------------------ results */
.modes { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin: 8px 0 28px; }
.mode { padding: 20px 22px; border-radius: var(--radius); background: var(--card); border: 1px solid var(--line); }
.mode p { margin: 0; color: var(--fg-2); font-size: 15.5px; }
.mode__tag { font-size: 11.5px !important; letter-spacing: .12em; text-transform: uppercase; margin-bottom: 8px !important; color: var(--fg) !important; }
.mode--under { border-top: 3px solid var(--c-false); }
.mode--over { border-top: 3px solid var(--fg-3); }

.chartcard { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 22px 22px 16px; }
.chartcard__head { display: flex; justify-content: space-between; align-items: flex-start; gap: 16px; flex-wrap: wrap; margin-bottom: 8px; }
.chartcard__foot { color: var(--fg-3); font-size: 11.5px; margin: 12px 0 0; line-height: 1.55; }
.legend { display: flex; flex-wrap: wrap; gap: 6px 16px; margin: 0; font-size: 13px; color: var(--fg-2); }
.lg { display: inline-flex; align-items: center; gap: 7px; }
.lg::before { content: ""; width: 12px; height: 12px; border-radius: 3px; }
.lg--sv::before { background: var(--c-vision); }
.lg--sa::before { background: var(--c-audio); }
.lg--mv::before { background: repeating-linear-gradient(135deg, var(--c-vision) 0 2.5px, transparent 2.5px 5px); border: 1.5px solid var(--c-vision); }
.lg--ma::before { background: repeating-linear-gradient(135deg, var(--c-audio) 0 2.5px, transparent 2.5px 5px); border: 1.5px solid var(--c-audio); }
.lg--probe::before { background: var(--c-probe); border-radius: 50%; }
.lg--resid::before { border: 2px solid var(--c-probe); border-radius: 50%; width: 10px; height: 10px; }
.lg--beh::before { background: var(--c-false); border-radius: 50%; }
.lg--ref::before { width: 16px; height: 0; border-top: 2px dashed var(--fg-3); border-radius: 0; }

.seg { display: inline-flex; padding: 3px; border-radius: 999px; border: 1px solid var(--line); background: var(--bg); }
.seg button { border: 0; background: transparent; padding: 6px 14px; border-radius: 999px; font-size: 13.5px; cursor: pointer; color: var(--fg-3); display: inline-flex; align-items: center; gap: 6px; }
.seg button svg { width: 16px; height: 16px; }
.seg button[aria-pressed="true"] { background: var(--fg); color: var(--bg); }

.chart { position: relative; width: 100%; }
.chart svg { width: 100%; height: auto; overflow: visible; }
.chart text { font-family: var(--sans); fill: var(--fg-2); }
.chart .t-mono { font-family: var(--mono); }
.chart .axis line { stroke: var(--line); }
.chart .axis text { fill: var(--fg-3); font-size: 11px; font-family: var(--mono); }
.chart .bar { transition: opacity .35s var(--ease), width .9s var(--ease), x .9s var(--ease); }
.chart .dim { opacity: .14; }
.chart .grp-label { font-size: 13.5px; font-weight: 500; fill: var(--fg); }
.chart .grp-sub { font-size: 11px; fill: var(--fg-3); font-family: var(--mono); }
.chart .val { font-family: var(--mono); font-size: 10.5px; fill: var(--fg-3); }
.tip {
  position: absolute; pointer-events: none; z-index: 5;
  background: var(--ink); color: var(--paper);
  border-radius: 8px; padding: 7px 10px;
  font-size: 12.5px; line-height: 1.35; white-space: nowrap;
  box-shadow: 0 10px 30px rgba(0,0,0,.35);
  opacity: 0; transform: translate(-50%, calc(-100% - 10px)); transition: opacity .15s;
}
.tip b { font-family: var(--mono); font-weight: 500; }
.tip.on { opacity: 1; }

.facts { list-style: none; padding: 0; margin: 28px 0 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.facts li { color: var(--fg-2); font-size: 15.5px; border-top: 1px solid var(--line); padding-top: 14px; }
.facts strong { color: var(--fg); font-weight: 600; display: block; }

/* ------------------------------------------------------------------ gap */
.gap { background: radial-gradient(60% 40% at 80% 0%, rgba(167,139,250,.12), transparent 70%), radial-gradient(50% 40% at 0% 60%, rgba(229,72,77,.07), transparent 70%), var(--ink); }
.chartcard--ink { background: rgba(18,21,28,.8); }
.chartcard--ink .seg { background: var(--ink); }
.cols3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-top: 24px; }
.panel { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 20px; }
.panel p { margin: 0 0 10px; color: var(--fg-2); font-size: 15px; }
.panel__k { color: var(--c-probe) !important; font-size: 11.5px !important; text-transform: uppercase; letter-spacing: .12em; }
.runner { margin: 4px 0 14px; display: grid; gap: 7px; }
.runner__row { display: grid; grid-template-columns: 118px 1fr 48px; gap: 8px; align-items: center; font-size: 12.5px; color: var(--fg-3); }
.runner__row b { height: 10px; border-radius: 3px; width: calc(var(--v) / 30 * 100%); background: rgba(237,232,223,.28); }
.runner__row b.p { background: var(--probe); }
.runner__row em { font-style: normal; font-family: var(--mono); font-size: 12px; color: var(--fg); text-align: right; }

/* ------------------------------------------------------------------ pgla */
.pgla { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 40px; align-items: start; }
.pgla__text > p { color: var(--fg-2); margin: 0 0 16px; }
.pgla__text strong { color: var(--fg); }
.eq { background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 18px 14px; margin: 6px 0 16px; overflow-x: auto; color: var(--fg); font-size: 15px; }
.eq .katex-display { margin: 0; }
.chips { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin: 22px 0; }
.chip { border: 1px solid var(--line); border-radius: 12px; padding: 12px 14px; background: var(--card); }
.chip b { display: block; font-family: var(--serif); font-weight: 400; font-size: 38px; line-height: 1; color: var(--c-correct); }
.chip span { display: block; font-size: 12.5px; color: var(--fg-3); margin-top: 6px; line-height: 1.35; }
.chip--main { background: var(--fg); border-color: var(--fg); }
.chip--main b { color: #6EE0A8; }
.chip--main span { color: #BFC3CB; }
.callout { border-left: 3px solid var(--c-probe); padding: 4px 0 4px 16px; }
.callout p { margin: 0; color: var(--fg-2); font-size: 15px; }
.callout__k { color: var(--c-probe) !important; font-size: 11.5px !important; letter-spacing: .12em; text-transform: uppercase; margin-bottom: 6px !important; }

/* ------------------------------------------------------------------ interference */
.interf { display: grid; grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr); gap: 40px; align-items: center; }
.interf__text p { color: var(--fg-2); }

/* ------------------------------------------------------------------ bibtex */
.bib { position: relative; background: var(--ink-2); border: 1px solid var(--line); border-radius: var(--radius); }
.bib pre { margin: 0; padding: 22px 22px 22px; overflow-x: auto; white-space: pre-wrap; overflow-wrap: anywhere; font-family: var(--mono); font-size: 13px; line-height: 1.7; color: #D8D2C6; }
.bib__head { display: flex; justify-content: space-between; align-items: center; padding: 10px 12px 10px 22px; border-bottom: 1px solid var(--line); color: var(--fg-3); }
.bib__copy { display: inline-flex; align-items: center; gap: 6px; border: 1px solid var(--line); background: var(--ink-3); border-radius: 8px; padding: 6px 10px; font-size: 13px; cursor: pointer; color: var(--paper); }
.bib__copy svg { width: 15px; height: 15px; }
.bib__copy.done { border-color: var(--correct); color: var(--c-correct); }
.ack__h { margin-top: 56px; }
.ack { color: var(--fg-3); font-size: 15px; margin: 0; }

/* ------------------------------------------------------------------ footer */
.foot { background: #000; color: var(--paper); padding: 44px 0 36px; border-top: 1px solid rgba(237,232,223,.08); }
.foot__in { display: flex; justify-content: space-between; align-items: center; gap: 24px; flex-wrap: wrap; }
.foot__brand { display: flex; align-items: center; gap: 14px; }
.foot__brand p { margin: 0; line-height: 1.3; }
.foot__brand .serif { font-size: 24px; }
.foot__brand .mono { color: var(--muted); }
.eye--small { width: 52px; }
.foot__links { display: flex; flex-wrap: wrap; gap: 8px 22px; }
.foot__links a { color: var(--fg-2); text-decoration: none; }
.foot__links a:hover { color: var(--paper); text-decoration: underline; }
.foot__fine { color: #6B7280; margin-top: 26px; font-size: 11.5px; }

/* ------------------------------------------------------------------ reveal */
.reveal { opacity: 0; transform: translateY(18px); transition: opacity 1s var(--ease), transform 1s var(--ease); }
.reveal.in { opacity: 1; transform: none; }
.no-js .reveal { opacity: 1; transform: none; }

/* ------------------------------------------------------------------ responsive */
@media (max-width: 1000px) {
  .explorer__grid, .design, .pgla, .interf { grid-template-columns: 1fr; }
  .cols3, .facts { grid-template-columns: 1fr; }
  .hero__bar--bottom { grid-template-columns: 1fr; }
  .links { justify-content: flex-start; max-width: none; }
}
@media (max-width: 720px) {
  body { font-size: 16px; }
  .hero__bar--top { font-size: 12px; letter-spacing: .08em; }
  .hero__screen { min-height: 40vh; }
  .hero__eye { width: 44px; bottom: 12px; }
  .authors__names { font-size: 15.5px; gap: 2px 12px; }
  .authors__aff { font-size: 13px; }
  .btn { padding: 8px 12px; font-size: 13.5px; }
  .kvs__row { grid-template-columns: 1fr auto; gap: 6px 14px; }
  .kvs__label { grid-column: 1 / -1; flex-direction: row; gap: 10px; align-items: baseline; flex-wrap: wrap; }
  .kvs__track { height: 18px; }
  .kvs__num { font-size: 38px; min-width: 96px; }
  .stats { grid-template-columns: 1fr 1fr; }
  .stat, .stat:not(:nth-child(4n+1)) { padding: 18px 12px 16px 0; }
  .stat:nth-child(2n) { padding-left: 14px; }
  .stat:not(:nth-child(4n)) { border-right: 0; }
  .stat:nth-child(2n+1) { border-right: 1px solid var(--line); }
  .stat dt { font-size: 12.5px; }
  .modes { grid-template-columns: 1fr; }
  .chips { grid-template-columns: 1fr 1fr 1fr; gap: 6px; }
  .chip { padding: 10px; }
  .chip b { font-size: 28px; }
  .chip span { font-size: 11.5px; }
  .chartcard { padding: 16px 12px 12px; margin-left: -4px; margin-right: -4px; }
  .twobytwo { grid-template-columns: 1fr 1fr; }
  .twobytwo > span:first-child { display: none; }
  .tbt__row { grid-column: 1 / -1; flex-direction: row; justify-content: flex-start; padding: 8px 0 0; }
  .tbt__row svg { width: 20px; height: 20px; }
  .tbt__cell { padding: 12px; min-height: 0; }
  .tbt__cell p { font-size: 17px; }
  .qcard { padding: 16px 14px 14px; }
  .qcard__q { font-size: 16px; }
  .opt { font-size: 14.5px; }
  .print { margin-top: 48px; padding: 8px; }
  .abstract::first-letter { font-size: 3.4em; }
  .explorer__clips { gap: 8px; }
  .clipbtn { min-width: 0; flex-direction: column; align-items: stretch; gap: 6px; padding: 6px; }
  .clipbtn img { width: 100%; }
  .clipbtn b { font-size: 12.5px; line-height: 1.25; }
  .clipbtn span span { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .reveal { opacity: 1; transform: none; }
  .kvs__fill { transform: none; }
  .badge, .hero__title, .hero__subtitle, .authors, .links { opacity: 1; }
  body::after { display: none; }
}