/* Thalamic Labs — landing page
   Colour tokens --bg / --fg / --muted / --rule are driven by scroll in main.js. */

:root {
  --bg: #0A0A0A;
  --fg: #EDEDED;
  --muted: #8C8C8C;
  --rule: rgba(237, 237, 237, .14);
  --soft: color-mix(in srgb, var(--fg) 78%, var(--bg));
  --dim: color-mix(in srgb, var(--fg) 42%, var(--bg));

  --display: 'Sora', ui-sans-serif, system-ui, -apple-system, 'Segoe UI', sans-serif;
  --sans: 'Sora', ui-sans-serif, system-ui, -apple-system, 'Segoe UI', sans-serif;
  --mono: 'Geist Mono', ui-monospace, 'SF Mono', Menlo, Consolas, monospace;

  --col: 54%;              /* share of the viewport given to the 3D model */
  --gutter: clamp(16px, 3vw, 40px);

  color-scheme: dark;
}
:root.paper { color-scheme: light; }

* { box-sizing: border-box; }
html { background: var(--bg); scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font: 300 15px/1.65 var(--sans);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}
a { color: inherit; }
::selection { background: var(--fg); color: var(--bg); }
img { max-width: 100%; }

/* ---------- Fixed layers ---------- */
#scene {
  position: fixed; inset: 0;
  width: 100%; height: 100%;
  display: block; z-index: 1;
}
.no-webgl #scene { display: none; }
main { position: relative; z-index: 2; }

/* ---------- Type ---------- */
.eyebrow {
  font: 500 11px/1.4 var(--mono);
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 0 0 22px;
}
.eyebrow .sep { opacity: .5; margin: 0 .4em; }
.display {
  font-family: var(--display);
  font-weight: 200;
  font-size: clamp(40px, 5.6vw, 96px);
  line-height: 1;
  letter-spacing: -.045em;
  margin: 0 0 30px;
}
.dim { color: var(--dim); }
.display--md { font-size: clamp(42px, 5.6vw, 92px); max-width: 14ch; }
.title {
  font-family: var(--display);
  font-weight: 300;
  font-size: clamp(28px, 2.9vw, 46px);
  line-height: 1.12;
  letter-spacing: -.035em;
  margin: 0 0 24px;
  text-wrap: balance;
}
.lede { font-size: clamp(17px, 1.35vw, 20px); line-height: 1.5; color: var(--soft); max-width: 32em; margin: 0 0 32px; }
p { color: var(--soft); max-width: 36em; margin: 0 0 18px; }
p b { color: var(--fg); font-weight: 500; }
.pull { font-family: var(--display); font-weight: 300; font-size: 21px; line-height: 1.4; letter-spacing: -.02em; color: var(--fg); margin-top: 28px; }
.note {
  font: 400 12px/1.55 var(--mono);
  color: var(--muted);
  border-left: 1px solid var(--rule);
  padding-left: 14px;
  margin-top: 22px;
}

/* ---------- Evidence tags ---------- */
.tags { display: flex; flex-wrap: wrap; gap: 8px; margin: 22px 0 6px; }
.tag {
  --c: var(--fg);
  display: inline-flex; align-items: center; gap: 8px;
  font: 500 10.5px/1 var(--mono);
  letter-spacing: .12em; text-transform: uppercase;
  color: var(--c);
  padding: 7px 11px 7px 9px;
  border: 1px solid color-mix(in srgb, var(--c) 30%, transparent);
  border-radius: 999px;
  white-space: nowrap;
}
.tag i { width: 9px; height: 9px; border-radius: 50%; flex: none; box-sizing: border-box; }
.tag em {
  font-style: normal; text-transform: none; letter-spacing: .02em;
  color: var(--muted); font-size: 11px;
  padding-left: 8px; border-left: 1px solid var(--rule);
}
.tag i { border: 1.5px solid var(--c); }
.tag[data-s="demo"] i { background: var(--c); }
.tag[data-s="dev"] i { background: linear-gradient(90deg, var(--c) 50%, transparent 50%); }
.tag[data-s="long"] i { border-style: dotted; }
.tag--xs { padding: 4px 8px 4px 7px; font-size: 9.5px; gap: 6px; vertical-align: 2px; margin-left: 6px; }
.tag--xs i { width: 7px; height: 7px; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 10px;
  font: 500 11.5px/1 var(--mono);
  letter-spacing: .12em; text-transform: uppercase;
  text-decoration: none;
  padding: 15px 20px;
  border-radius: 999px;
  border: 1px solid color-mix(in srgb, var(--fg) 28%, transparent);
  transition: background .25s, color .25s, border-color .25s;
}
.btn:hover { border-color: var(--fg); }
.btn--solid { background: var(--fg); color: var(--bg); border-color: var(--fg); }
.btn--solid:hover { background: transparent; color: var(--fg); }
.btn--sm { padding: 11px 15px; font-size: 10.5px; white-space: nowrap; }
.cta-row { display: flex; flex-wrap: wrap; gap: 12px; }

/* ---------- Nav ---------- */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 10;
  display: flex; align-items: center; justify-content: space-between; gap: 24px;
  padding: calc(16px + env(safe-area-inset-top, 0px)) var(--gutter) 16px;
  background: linear-gradient(to bottom, var(--bg) 35%, color-mix(in srgb, var(--bg) 0%, transparent));
}
.brand { display: inline-flex; align-items: center; gap: 12px; text-decoration: none; white-space: nowrap; }
.lockup { display: flex; flex-direction: column; gap: 3px; line-height: 1; }
.lockup .name { font: 300 17px/1 var(--display); letter-spacing: -.01em; }
.lockup .tagline { font: 400 7.5px/1 var(--sans); letter-spacing: .3em; text-transform: uppercase; color: var(--muted); }
.mark {
  flex: none; display: block;
  height: 40px; aspect-ratio: 948 / 1098;
  background: currentColor;
  -webkit-mask: url("assets/mark-sm.svg?v=13") center / contain no-repeat;
  mask: url("assets/mark-sm.svg?v=13") center / contain no-repeat;
}
/* bolder cuts of the same drawing keep the fine lines legible at small sizes */
.mark--lg { height: 104px; -webkit-mask-image: url("assets/mark-md.svg?v=13"); mask-image: url("assets/mark-md.svg?v=13"); }
.foot-mark { display: flex; align-items: center; gap: 20px; margin-top: 96px; }
.foot-mark .name { font-size: 30px; letter-spacing: -.03em; }
.foot-mark .tagline { font-size: 9.5px; margin-top: 8px; }
.nav-links { list-style: none; display: flex; gap: 32px; margin: 0; padding: 0; }
.nav-links a {
  font: 500 11px/1 var(--mono); letter-spacing: .14em; text-transform: uppercase;
  text-decoration: none; color: var(--muted);
  display: inline-flex; align-items: center; gap: 8px;
  transition: color .3s;
}
.nav-links a::before {
  content: ""; width: 5px; height: 5px; border-radius: 50%;
  background: currentColor; opacity: 0; transform: scale(.4);
  transition: opacity .3s, transform .3s;
}
.nav-links a:hover, .nav-links a.active { color: var(--fg); }
.nav-links a.active::before { opacity: 1; transform: none; }

/* ---------- Right column (sits beside the sticky 3D model) ---------- */
.col {
  margin-left: var(--col);
  width: calc(100% - var(--col));
  padding-right: clamp(20px, 5vw, 88px);
  padding-left: clamp(12px, 2vw, 28px);
}
.hero {
  min-height: 100vh; min-height: 100svh;
  display: flex; flex-direction: column; justify-content: center;
  padding-top: 110px; padding-bottom: 60px;
  position: relative;
}
.legend { margin-top: 64px; }
.legend .eyebrow { margin-bottom: 12px; }
.legend .tags { margin: 0; }
.scroll-cue { position: absolute; bottom: 28px; margin: 0; }
.scroll-cue span { display: inline-block; animation: cue 2.4s ease-in-out infinite; }
@keyframes cue { 50% { transform: translateY(5px); } }

.step {
  min-height: 130vh;
  display: flex; align-items: center;
  padding-block: 14vh;
}
.step-inner { max-width: 540px; }

.spec {
  margin: 26px 0 0; padding: 0;
  border-top: 1px solid var(--rule);
}
.spec div {
  display: grid; grid-template-columns: 112px 1fr; gap: 16px;
  padding: 12px 0; border-bottom: 1px solid var(--rule);
}
.spec dt { font: 500 10.5px/1.6 var(--mono); letter-spacing: .12em; text-transform: uppercase; color: var(--muted); }
.spec dd { margin: 0; font-size: 14px; color: var(--soft); }

.grid-list {
  list-style: none; padding: 0; margin: 4px 0 26px;
  display: grid; grid-template-columns: 1fr 1fr;
  border-top: 1px solid var(--rule);
}
.grid-list li {
  font: 400 12.5px/1.4 var(--mono); color: var(--fg);
  padding: 11px 0; border-bottom: 1px solid var(--rule);
  display: flex; gap: 10px; align-items: center;
}
.grid-list li::before { content: ""; width: 5px; height: 5px; border: 1px solid currentColor; transform: rotate(45deg); opacity: .6; flex: none; }

.roles { list-style: none; padding: 0; margin: 0 0 26px; border-top: 1px solid var(--rule); }
.roles li {
  display: grid; grid-template-columns: 150px 1fr; gap: 16px; align-items: baseline;
  padding: 14px 0; border-bottom: 1px solid var(--rule);
}
.roles li > span:first-child { font: 500 10.5px/1.6 var(--mono); letter-spacing: .12em; text-transform: uppercase; color: var(--muted); }
.roles li > span:last-child { font-family: var(--display); font-weight: 300; font-size: 19px; line-height: 1.25; letter-spacing: -.025em; }

/* ---------- 3D overlay labels ---------- */
.labels { position: fixed; inset: 0; pointer-events: none; z-index: 3; overflow: hidden; }
.lbl {
  position: absolute; left: 0; top: 0; opacity: 0;
  display: flex; flex-direction: column; align-items: flex-start; gap: 7px;
  color: var(--muted);
  white-space: nowrap;
  will-change: transform, opacity;
  transition: color .5s;
}
.lbl .t { display: flex; flex-direction: column; gap: 4px; font: 500 10px/1.2 var(--mono); letter-spacing: .13em; text-transform: uppercase; }
.lbl .t b { font-weight: 500; color: var(--fg); }
.lbl .row { display: flex; align-items: center; }
.lbl .ln { height: 1px; background: currentColor; opacity: .4; flex: none; }
.lbl .dot { width: 7px; height: 7px; border-radius: 50%; border: 1px solid currentColor; background: var(--bg); flex: none; transition: background .5s, border-color .5s; }
.lbl.active { color: var(--fg); }
.lbl.active .dot { background: var(--fg); border-color: var(--fg); }

.tele { display: none; flex-direction: column; gap: 3px; margin-top: 2px; font: 400 10px/1.35 var(--mono); padding: 8px 10px; border: 1px solid var(--rule); border-radius: 3px; background: color-mix(in srgb, var(--bg) 70%, transparent); text-transform: none; letter-spacing: .04em; color: var(--fg); }
.tele.on { display: flex; }
.tele i { font-style: normal; color: var(--muted); display: inline-block; width: 84px; text-transform: uppercase; letter-spacing: .1em; font-size: 9px; }
.tele em { font-style: normal; color: var(--fg); }
.tele-h { color: var(--fg); text-transform: uppercase; letter-spacing: .14em; font-size: 9px; margin-bottom: 3px; }

/* ---------- Figure frame (lab-notebook state) ---------- */
.figframe {
  position: fixed; z-index: 2; pointer-events: none;
  left: var(--gutter); top: 92px; bottom: 28px;
  width: calc(var(--col) - var(--gutter) * 1.5);
  opacity: 0;
}
.figframe .c { position: absolute; width: 14px; height: 14px; border: 0 solid var(--fg); opacity: .55; }
.figframe .tl { top: 0; left: 0; border-top-width: 1px; border-left-width: 1px; }
.figframe .tr { top: 0; right: 0; border-top-width: 1px; border-right-width: 1px; }
.figframe .bl { bottom: 0; left: 0; border-bottom-width: 1px; border-left-width: 1px; }
.figframe .br { bottom: 0; right: 0; border-bottom-width: 1px; border-right-width: 1px; }
.figcap {
  position: absolute; left: 22px; bottom: 18px; margin: 0;
  max-width: 440px;
  font: 400 10.5px/1.6 var(--mono); letter-spacing: .04em; color: var(--muted);
}
.figcap b { color: var(--fg); font-weight: 500; letter-spacing: .12em; text-transform: uppercase; }

/* ---------- About (full width, lab notebook) ---------- */
.wrap { max-width: 1200px; margin-inline: auto; padding-inline: var(--gutter); }
.about { padding-block: 22vh 6vh; position: relative; }
.statement {
  font-family: var(--display); font-weight: 200;
  font-size: clamp(30px, 3.9vw, 60px);
  line-height: 1.12; letter-spacing: -.045em;
  color: var(--fg);
  max-width: 24ch; margin: 0 0 64px;
  text-wrap: balance;
}
.two { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 2fr); gap: 32px; }
.block { padding-block: 13vh 4vh; border-top: 1px solid var(--rule); margin-top: 9vh; }
.block-head { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 2fr); gap: 32px; margin-bottom: 48px; }

.compare { display: grid; grid-template-columns: 1fr 1fr; border: 1px solid var(--rule); }
.compare > div { padding: clamp(22px, 3vw, 40px); }
.compare > div + div { border-left: 1px solid var(--rule); }
.compare h3 { font: 300 26px/1.1 var(--display); letter-spacing: -.03em; margin: 0 0 22px; }
.compare ul { list-style: none; margin: 0; padding: 0; }
.compare li { display: grid; grid-template-columns: 26px 1fr; padding: 11px 0; border-top: 1px solid var(--rule); color: var(--soft); font-size: 15px; }
.compare li::before { font: 500 13px/1.6 var(--mono); }
.compare li.plus::before { content: "+"; color: var(--fg); }
.compare li.minus::before { content: "−"; color: var(--muted); }
.callout { font: 300 clamp(22px, 2.2vw, 30px)/1.35 var(--display); letter-spacing: -.025em; color: var(--fg); max-width: 26em; margin: 56px auto 0; text-align: center; }

.pair { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(32px, 6vw, 96px); }
.figures { display: grid; grid-template-columns: 1fr auto 1fr; align-items: end; gap: 16px; margin: 8px 0 26px; padding: 22px 0; border-block: 1px solid var(--rule); }
.figures b { display: block; font: 200 clamp(38px, 4vw, 60px)/1 var(--display); letter-spacing: -.045em; color: var(--fg); }
.figures span { display: block; margin-top: 8px; font: 500 10.5px/1.4 var(--mono); letter-spacing: .12em; text-transform: uppercase; color: var(--muted); }
.figures .vs { font: 400 11px/1 var(--mono); letter-spacing: .14em; text-transform: uppercase; color: var(--muted); padding-bottom: 26px; }
.chips { list-style: none; padding: 0; margin: 14px 0 0; display: flex; flex-wrap: wrap; gap: 7px; }
.chips li { font: 400 11px/1 var(--mono); letter-spacing: .04em; padding: 8px 11px; border: 1px solid var(--rule); border-radius: 999px; color: var(--soft); }

.ladder-wrap { margin-bottom: 56px; }
.ladder-head { display: flex; flex-wrap: wrap; align-items: center; gap: 14px; margin-bottom: 18px; }
.ladder-head h3 { font: 300 22px/1.1 var(--display); letter-spacing: -.03em; margin: 0 8px 0 0; }
.here { font: 500 10.5px/1 var(--mono); letter-spacing: .12em; text-transform: uppercase; color: var(--muted); margin-left: auto; }
.ladder-scroll { overflow-x: auto; }
.ladder { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(6, minmax(150px, 1fr)); min-width: 900px; border: 1px solid var(--rule); }
.ladder li { padding: 18px 16px 22px; border-left: 1px solid var(--rule); position: relative; }
.ladder li:first-child { border-left: 0; }
.ladder li::after { content: ""; position: absolute; left: 16px; right: 16px; top: 0; height: 2px; background: var(--rule); }
.ladder b { font: 500 12px/1 var(--mono); letter-spacing: .1em; color: var(--muted); }
.ladder h4 { font: 400 16px/1.25 var(--display); letter-spacing: -.02em; margin: 14px 0 8px; color: var(--fg); }
.ladder p { font-size: 13.5px; line-height: 1.5; margin: 0; }

.apps { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--rule); border-left: 1px solid var(--rule); }
.apps li { padding: 26px 24px 32px; border-right: 1px solid var(--rule); border-bottom: 1px solid var(--rule); }
.apps h3 { font: 300 21px/1.2 var(--display); letter-spacing: -.03em; margin: 18px 0 10px; }
.apps p { font-size: 14.5px; margin: 0; }
.hz { display: inline-block; font: 500 9.5px/1 var(--mono); letter-spacing: .14em; text-transform: uppercase; padding: 6px 9px; border: 1px dashed color-mix(in srgb, var(--fg) 35%, transparent); border-radius: 3px; color: var(--muted); }

.noclaims { list-style: none; padding: 0; margin: 0 0 26px; border-top: 1px solid var(--rule); }
.noclaims li { display: flex; align-items: baseline; gap: 14px; padding: 12px 0; border-bottom: 1px solid var(--rule); font: 300 18px/1.35 var(--display); letter-spacing: -.02em; color: var(--fg); }
.noclaims li::before { content: "Not claimed"; font: 500 9.5px/1 var(--mono); letter-spacing: .14em; text-transform: uppercase; color: var(--muted); width: 92px; flex: none; }
.levels { list-style: none; padding: 0; margin: 0; border-top: 1px solid var(--rule); }
.levels li { display: grid; grid-template-columns: 40px 170px 1fr; gap: 12px; align-items: baseline; padding: 16px 0; border-bottom: 1px solid var(--rule); }
.levels b { font: 500 11px/1 var(--mono); color: var(--muted); letter-spacing: .1em; }
.levels span { font: 500 11px/1.4 var(--mono); letter-spacing: .1em; text-transform: uppercase; color: var(--fg); }
.levels i { font: 300 16px/1.4 var(--display); font-style: normal; color: var(--soft); }

.refs .yr { display: grid; grid-template-columns: 140px 1fr; gap: 24px; border-top: 1px solid var(--rule); }
.refs .yr > span { font: 200 40px/1 var(--display); color: var(--muted); padding-top: 22px; letter-spacing: -.05em; }
.refs ul { list-style: none; margin: 0; padding: 0; }
.refs li + li { border-top: 1px solid var(--rule); }
.refs a { display: block; padding: 22px 40px 22px 0; text-decoration: none; position: relative; }
.refs a::after { content: "↗"; position: absolute; right: 4px; top: 24px; font-family: var(--mono); color: var(--muted); transition: transform .25s, color .25s; }
.refs a:hover::after { transform: translate(3px, -3px); color: var(--fg); }
.refs h4 { font: 300 18px/1.35 var(--display); letter-spacing: -.02em; margin: 0 0 6px; color: var(--fg); }
.refs p { font: 400 11.5px/1.5 var(--mono); letter-spacing: .02em; color: var(--muted); margin: 0; max-width: none; }

/* ---------- Contact ---------- */
.contact { padding-block: 22vh 0; position: relative; }
.contact-head { min-height: 48vh; }
@media (max-width: 900px) { .contact-head { min-height: 0; } }
.routes { list-style: none; margin: 72px 0 0; padding: 0; border-top: 1px solid var(--rule); }
.routes li { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.4fr) 260px; gap: 24px; align-items: baseline; padding: 24px 0; border-bottom: 1px solid var(--rule); }
.routes h3 { font: 300 26px/1.1 var(--display); letter-spacing: -.035em; margin: 0; }
.routes p { margin: 0; }
.routes a { justify-self: end; font: 400 13px/1 var(--mono); letter-spacing: .02em; text-decoration: none; border-bottom: 1px solid var(--rule); padding-bottom: 4px; transition: border-color .25s; }
.routes a:hover { border-color: var(--fg); }
.foot { display: flex; flex-wrap: wrap; gap: 12px 32px; justify-content: space-between; padding: 64px 0 calc(32px + env(safe-area-inset-bottom, 0px)); font: 400 11px/1.6 var(--mono); letter-spacing: .04em; color: var(--muted); }
.foot a { text-decoration: none; }
.foot a:hover { color: var(--fg); }

/* ---------- Reveal ---------- */
.js .reveal { opacity: 0; transform: translateY(18px); transition: opacity 1s cubic-bezier(.2, .7, .2, 1), transform 1s cubic-bezier(.2, .7, .2, 1); }
.js .reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .js .reveal { transform: none; transition: opacity .4s; }
  .scroll-cue span { animation: none; }
}

/* ---------- Responsive ---------- */
@media (max-width: 1100px) {
  :root { --col: 48%; }
  .nav-links { gap: 20px; }
}
@media (max-width: 900px) {
  :root { --col: 0px; }
  .nav-links { display: none; }
  .nav { background: color-mix(in srgb, var(--bg) 90%, transparent); backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px); padding-bottom: 12px; }
  .col { padding-inline: var(--gutter); }
  .labels, .figframe { display: none; }
  .hero { justify-content: flex-end; padding-bottom: 96px; background: linear-gradient(to bottom, transparent 30%, color-mix(in srgb, var(--bg) 82%, transparent) 55%); }
  .legend { margin-top: 36px; }
  .step { align-items: flex-end; min-height: 125vh; padding-block: 50vh 8vh; }
  .step-inner {
    padding: 24px 20px;
    background: color-mix(in srgb, var(--bg) 84%, transparent);
    border: 1px solid var(--rule);
    border-radius: 6px;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
  }
  .two, .block-head, .pair { grid-template-columns: 1fr; gap: 16px; }
  .pair { gap: 72px; }
  .compare { grid-template-columns: 1fr; }
  .compare > div + div { border-left: 0; border-top: 1px solid var(--rule); }
  .apps { grid-template-columns: 1fr; }
  .refs .yr { grid-template-columns: 1fr; gap: 0; }
  .refs .yr > span { font-size: 32px; padding-top: 18px; }
  .routes li { grid-template-columns: 1fr; gap: 8px; }
  .routes a { justify-self: start; }
  .levels li { grid-template-columns: 34px 1fr; }
  .levels i { grid-column: 2; }
  .here { margin-left: 0; width: 100%; }
}
@media (max-width: 560px) {
  .display { font-size: clamp(38px, 11.5vw, 56px); }
  .lede { font-size: 15.5px; }
  .hero .btn { padding: 13px 16px; font-size: 10.5px; }
  .tag { white-space: normal; flex-wrap: wrap; row-gap: 4px; max-width: 100%; line-height: 1.3; border-radius: 12px; }
  .tag em { border-left: 0; padding-left: 0; flex-basis: 100%; padding-left: 17px; }
  .roles li { grid-template-columns: 1fr; gap: 4px; }
  .spec div { grid-template-columns: 1fr; gap: 4px; }
  .grid-list { grid-template-columns: 1fr; }
  .figures { grid-template-columns: 1fr; }
  .figures .vs { padding: 0; }
  .lockup .name { font-size: 15px; }
  .brand { gap: 9px; }
  .btn--sm { padding: 10px 12px; letter-spacing: .1em; }
}
@media (max-width: 420px) {
  .nav > .btn { display: none; }
}

/* ---------- Comparison numbers ---------- */
.numbers { border: 1px solid var(--rule); margin-bottom: 32px; }
.numbers-head, .numbers .row { display: grid; grid-template-columns: minmax(120px, .7fr) 1fr 1fr; }
.numbers-head span { padding: 18px clamp(16px, 2.4vw, 32px); font: 500 10.5px/1 var(--mono); letter-spacing: .14em; text-transform: uppercase; color: var(--muted); border-bottom: 1px solid var(--rule); }
.numbers-head span + span { border-left: 1px solid var(--rule); color: var(--fg); }
.numbers dl { margin: 0; }
.numbers .row + .row { border-top: 1px solid var(--rule); }
.numbers dt { padding: 22px clamp(16px, 2.4vw, 32px); font: 500 10.5px/1.5 var(--mono); letter-spacing: .12em; text-transform: uppercase; color: var(--muted); }
.numbers dd { margin: 0; padding: 20px clamp(16px, 2.4vw, 32px) 22px; border-left: 1px solid var(--rule); }
.numbers dd > b { display: block; font: 200 clamp(30px, 3vw, 44px)/1 var(--display); letter-spacing: -.045em; color: var(--fg); margin-bottom: 10px; }
.numbers dd > span { font-size: 13.5px; line-height: 1.5; color: var(--soft); }
.numbers b.inline { font-weight: 500; color: var(--fg); }
.numbers sup { font: 500 9px/0 var(--mono); color: var(--muted); margin-left: 2px; }
.sources { margin: 0; padding: 18px clamp(16px, 2.4vw, 32px) 4px 52px; border-top: 1px solid var(--rule); font: 400 11px/1.7 var(--mono); color: var(--muted); }
.sources i { font-style: normal; }
.numbers .note { margin: 4px clamp(16px, 2.4vw, 32px) 20px; }
@media (max-width: 760px) {
  .numbers-head { display: none; }
  .numbers .row { grid-template-columns: 1fr 1fr; }
  .numbers dt { grid-column: 1 / -1; padding-bottom: 0; }
  .numbers dd:first-of-type { border-left: 0; }
  .numbers dd::before { display: block; font: 500 9.5px/1 var(--mono); letter-spacing: .14em; text-transform: uppercase; color: var(--muted); margin-bottom: 10px; }
  .numbers dd:first-of-type::before { content: "Silicon"; }
  .numbers dd:last-of-type::before { content: "Biological"; }
}

/* ---------- Welcome (entry) ----------
   Layers: white curtain (z 0) → 3D canvas (z 1) → welcome copy (z 100).
   The organoid therefore sits on the white page, in the same place as in the hero. */
.welcome, .welcome-curtain { display: none; }
.welcome-on, .welcome-on body { overflow: hidden; }
.welcome-on .welcome-curtain {
  display: block; position: fixed; inset: 0; z-index: 0;
  background: #EEECE9;
  transition: transform 1.25s cubic-bezier(.76, 0, .24, 1);
  will-change: transform;
}
.welcome-curtain.lift { transform: translateY(-100%); }
.welcome-on .welcome {
  position: fixed; inset: 0; z-index: 100;
  display: flex; flex-direction: column; justify-content: center; align-items: flex-start; gap: 7vh;
  padding: calc(24px + env(safe-area-inset-top, 0px)) clamp(20px, 5vw, 88px) calc(24px + env(safe-area-inset-bottom, 0px)) calc(var(--col) + clamp(12px, 2vw, 28px));
  color: #111;
}
.welcome-on:not(.welcome-leaving) .nav,
.welcome-on:not(.welcome-leaving) main { opacity: 0; pointer-events: none; }
.nav, main { transition: opacity .9s ease; }
/* Enter: the curtain lifts; the copy rises a little faster and fades */
.welcome.lift > * { animation: none; transition: transform 1.1s cubic-bezier(.76, 0, .24, 1), opacity .6s ease; transform: translateY(-14vh); opacity: 0; }
.welcome-lockup { display: flex; align-items: center; gap: clamp(18px, 2.4vw, 34px); }
.mark--xl { height: clamp(96px, 9.5vw, 136px); -webkit-mask-image: url("assets/mark.svg?v=13"); mask-image: url("assets/mark.svg?v=13"); }
.lockup--xl { gap: 12px; }
.lockup--xl .name { font-size: clamp(28px, 2.7vw, 44px); font-weight: 300; letter-spacing: .005em; white-space: nowrap; }
.lockup--xl .tagline { font-size: clamp(8.5px, .72vw, 11px); letter-spacing: .3em; color: inherit; opacity: .85; padding-left: 2px; }
.welcome-enter {
  display: inline-flex; align-items: center; gap: 14px;
  font: 500 11px/1 var(--mono); letter-spacing: .2em; text-transform: uppercase;
  color: inherit; background: none; cursor: pointer;
  border: 1px solid currentColor; border-radius: 999px; padding: 15px 22px;
  opacity: .8; transition: opacity .3s, background-color .3s, color .3s;
}
.welcome-enter:hover, .welcome-enter:focus-visible { opacity: 1; background: currentColor; }
.welcome-enter:hover > span, .welcome-enter:focus-visible > span { color: #EEECE9; }
.welcome-enter .key { font-size: 14px; }
.welcome-enter .tap-hint { display: none; }
@media (hover: none) { .welcome-enter .tap-hint { display: inline; } .welcome-enter .kbd-hint { display: none; } }
.welcome-foot { position: absolute; bottom: calc(28px + env(safe-area-inset-bottom, 0px)); margin: 0; font: 400 10px/1.5 var(--mono); letter-spacing: .14em; text-transform: uppercase; color: inherit; opacity: .5; }
.welcome-lockup, .welcome-enter, .welcome-foot { animation: welcome-in 1.4s cubic-bezier(.2, .7, .2, 1) both; }
.welcome-enter { animation-delay: .4s; }
.welcome-foot { animation-delay: .7s; }
@keyframes welcome-in { from { opacity: 0; transform: translateY(10px); } }
@media (max-width: 900px) {
  /* organoid sits at the top on phones, so the copy goes to the bottom like the hero */
  .welcome-on .welcome { justify-content: flex-end; padding: 24px var(--gutter) calc(96px + env(safe-area-inset-bottom, 0px)); gap: 32px; }
  .welcome-on .welcome::before { content: ""; position: absolute; inset: 40% 0 0; background: linear-gradient(to bottom, rgba(238, 236, 233, 0), #EEECE9 45%); z-index: -1; transition: opacity .5s ease; }
  .welcome.lift::before { opacity: 0; }
  .welcome-lockup { gap: 14px; }
  .mark--xl { height: 66px; }
  .lockup--xl .name { font-size: clamp(21px, 6.2vw, 30px); }
  .lockup--xl .tagline { font-size: 8.5px; letter-spacing: .24em; }
}
@media (max-height: 600px) and (min-width: 901px) {
  .welcome-on .welcome { gap: 4vh; }
  .mark--xl { height: min(18vh, 110px); }
  .welcome-foot { position: static; }
}
@media (prefers-reduced-motion: reduce) {
  .welcome-lockup, .welcome-enter, .welcome-foot { animation: none; }
  .welcome-curtain, .welcome.lift > * { transition: none; }
}

/* ---------- Illustrations (pen drawings, ink on paper) ---------- */
.fig { margin: 0; }
.fig img { display: block; width: 100%; height: auto; }
.fig figcaption { margin-top: 10px; font: 400 10px/1.5 var(--mono); letter-spacing: .1em; text-transform: uppercase; color: var(--muted); }
/* on the dark technology steps the drawings are inverted to light ink */
.fig--step { margin: 26px 0 6px; padding: 14px 16px 12px; border: 1px solid var(--rule); border-radius: 4px; }
.fig--step img { filter: invert(.9); opacity: .9; }
:root.paper .fig--step img { filter: none; opacity: 1; }
.fig--app { margin: -6px -8px 18px; }
.apps li { display: flex; flex-direction: column; }
.ladder-note { display: grid; grid-template-columns: minmax(0, 320px) minmax(0, 1fr); gap: 32px; align-items: center; margin-top: 22px; }
.ladder-note .note { margin: 0; }

/* ---------- Continuous learning flows ---------- */
.flows { display: grid; grid-template-columns: 1fr 1fr; border: 1px solid var(--rule); margin-bottom: 22px; }
.flow { padding: clamp(20px, 2.6vw, 32px); }
.flow + .flow { border-left: 1px solid var(--rule); }
.flow-label { font: 500 10.5px/1.4 var(--mono); letter-spacing: .14em; text-transform: uppercase; color: var(--muted); margin: 0 0 18px; }
.flow-steps { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; }
.flow-steps li { position: relative; padding: 14px 18px 14px 0; font: 300 17px/1.25 var(--display); letter-spacing: -.02em; color: var(--fg); border-top: 1px solid var(--fg); }
.flow-steps li b { display: block; font: 500 10px/1 var(--mono); letter-spacing: .12em; color: var(--muted); margin-bottom: 10px; }
.flow-steps li:not(:last-child)::after { content: "→"; position: absolute; right: 6px; top: 12px; font: 400 12px/1 var(--mono); color: var(--muted); }
.flow--loop .flow-steps li { border-top-style: dashed; }
.flow-foot { margin: 16px 0 0; font: 400 12px/1.5 var(--mono); color: var(--muted); }
.flow--loop .flow-foot { color: var(--fg); }

/* ---------- Components ---------- */
.comps { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid var(--rule); border-left: 1px solid var(--rule); }
.comps li { padding: 18px 20px 24px; border-right: 1px solid var(--rule); border-bottom: 1px solid var(--rule); display: flex; flex-direction: column; }
.comps .fig { margin: -4px -6px 14px; }
.comp-code { font: 500 10px/1 var(--mono); letter-spacing: .14em; color: var(--muted); margin: 0 0 8px; }
.comps h3 { font: 300 19px/1.2 var(--display); letter-spacing: -.025em; margin: 0 0 8px; }
.comps p { font-size: 13.5px; line-height: 1.5; margin: 0 0 14px; }
.comps .tag { margin-top: auto; align-self: flex-start; }

@media (max-width: 1100px) { .comps { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 900px) {
  .flows { grid-template-columns: 1fr; }
  .flow + .flow { border-left: 0; border-top: 1px solid var(--rule); }
  .ladder-note { grid-template-columns: 1fr; gap: 14px; }
}
@media (max-width: 560px) {
  .flow-steps { grid-template-columns: 1fr 1fr; row-gap: 10px; }
  .comps { grid-template-columns: 1fr; }
}

/* flow diagrams: the conventional pipeline runs once and stops at "deploy";
   the Thalamic Labs loop keeps cycling */
.flow-steps li { transition: color .3s; }
.flow-steps li::before { content: ""; position: absolute; left: 0; top: -1px; height: 1px; width: 0; background: var(--fg); }
.flow:not(.flow--loop) .flow-steps li { animation: fs-once 8s infinite; }
.flow:not(.flow--loop) .flow-steps li:nth-child(2) { animation-delay: 1s; }
.flow:not(.flow--loop) .flow-steps li:nth-child(3) { animation-delay: 2s; }
.flow:not(.flow--loop) .flow-steps li:nth-child(4) { animation-name: fs-hold; animation-delay: 3s; }
@keyframes fs-once { 0% { color: var(--muted); } 4%, 12% { color: var(--fg); } 20%, 100% { color: var(--muted); } }
@keyframes fs-hold { 0% { color: var(--muted); } 4%, 62% { color: var(--fg); } 70%, 100% { color: var(--muted); } }
.flow--loop .flow-steps li { animation: fs-loop 4s infinite; color: var(--muted); }
.flow--loop .flow-steps li:nth-child(2) { animation-delay: 1s; }
.flow--loop .flow-steps li:nth-child(3) { animation-delay: 2s; }
.flow--loop .flow-steps li:nth-child(4) { animation-delay: 3s; }
.flow--loop .flow-steps li::before { animation: fs-bar 4s infinite; height: 2px; top: -1.5px; }
.flow--loop .flow-steps li:nth-child(2)::before { animation-delay: 1s; }
.flow--loop .flow-steps li:nth-child(3)::before { animation-delay: 2s; }
.flow--loop .flow-steps li:nth-child(4)::before { animation-delay: 3s; }
@keyframes fs-loop { 0% { color: var(--muted); } 6%, 22% { color: var(--fg); } 30%, 100% { color: var(--muted); } }
@keyframes fs-bar { 0% { width: 0; opacity: 1; } 25% { width: 100%; opacity: 1; } 32%, 100% { width: 100%; opacity: 0; } }
.flow:not(.flow--loop) .flow-steps li { color: var(--muted); }
@media (prefers-reduced-motion: reduce) {
  .flow-steps li, .flow-steps li::before { animation: none !important; color: var(--fg); }
}

/* ---------- Contact (single address) ---------- */
.contact-box { margin-top: 56px; padding-top: 28px; border-top: 1px solid var(--rule); display: flex; flex-wrap: wrap; align-items: baseline; justify-content: space-between; gap: 18px 40px; }
.contact-for { margin: 0; max-width: 30em; color: var(--soft); }
.contact-email { font: 300 clamp(24px, 2.6vw, 38px)/1.1 var(--display); letter-spacing: -.03em; text-decoration: none; border-bottom: 1px solid var(--rule); padding-bottom: 6px; transition: border-color .25s; }
.contact-email span { font-size: .6em; color: var(--muted); margin-left: 6px; transition: color .25s; }
.contact-email:hover { border-color: var(--fg); }
.contact-email:hover span { color: var(--fg); }