/* clients.tyleryouk.com, from mockup v2 (approved 2026-11-06, knowledge#11425). Tokens: tyleryouk-site /designs (espresso / wool / ivory / cognac). Dark is primary; light is the same four inverted. */
:root {
  --ground: #16110d;   /* espresso */
  --card: #2b221c;     /* wool */
  --card-2: #221a15;
  --ink: #f1e8da;      /* ivory */
  --ink-rgb: 241 232 218;
  --cognac: #b7794a;
  --cognac-rgb: 183 121 74;
  --rule: rgb(var(--ink-rgb) / 0.12);
  --btn-bg: #f1e8da; --btn-ink: #16110d; --btn-hover: #fff8ec;
  --shadow: 0 1px 0 rgb(var(--ink-rgb) / 0.06) inset, 0 0 0 1px rgb(var(--ink-rgb) / 0.08) inset, 0 40px 80px -40px rgb(0 0 0 / 0.8);
  --ease: cubic-bezier(0.2, 0.7, 0.1, 1);
  --f-display: "Big Shoulders", sans-serif;
  --f-body: "Schibsted Grotesk", ui-sans-serif, system-ui, sans-serif;
  --f-mono: "Geist Mono", ui-monospace, monospace;
  --gut: max(16px, 4vw);
  color-scheme: dark;
}
@media (prefers-color-scheme: light) {
  :root:not([data-theme="dark"]) {
    --ground: #f1e8da; --card: #e7d9c4; --card-2: #ecdfcc; --ink: #16110d; --ink-rgb: 22 17 13;
    --cognac: #9a5f33; --cognac-rgb: 154 95 51;
    --btn-bg: #16110d; --btn-ink: #f1e8da; --btn-hover: #2b221c;
    --shadow: 0 0 0 1px rgb(var(--ink-rgb) / 0.08) inset, 0 40px 80px -48px rgb(60 40 20 / 0.45);
    color-scheme: light;
  }
}
:root[data-theme="light"] {
  --ground: #f1e8da; --card: #e7d9c4; --card-2: #ecdfcc; --ink: #16110d; --ink-rgb: 22 17 13;
  --cognac: #9a5f33; --cognac-rgb: 154 95 51;
  --btn-bg: #16110d; --btn-ink: #f1e8da; --btn-hover: #2b221c;
  --shadow: 0 0 0 1px rgb(var(--ink-rgb) / 0.08) inset, 0 40px 80px -48px rgb(60 40 20 / 0.45);
  color-scheme: light;
}

* { box-sizing: border-box; }
html, body { margin: 0; }
html { scroll-behavior: smooth; }
body {
  background: var(--ground); color: var(--ink); font-family: var(--f-body);
  min-height: 100svh; overflow-x: hidden; -webkit-font-smoothing: antialiased;
}
a { color: inherit; }
a:focus-visible, button:focus-visible { outline: 2px solid var(--cognac); outline-offset: 3px; border-radius: 8px; }
[hidden] { display: none !important; }

/* header */
.page { padding: 0 var(--gut) 72px; max-width: 1440px; margin: 0 auto; }
.bar {
  display: flex; align-items: center; justify-content: space-between; gap: 8px 16px; flex-wrap: wrap;
  padding: 14px 0;
}
.home { display: inline-flex; align-items: center; min-height: 44px; font: 500 15px var(--f-body); text-decoration: none; color: rgb(var(--ink-rgb) / 0.8); }
.home:hover { color: var(--ink); }
.acts { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.btn {
  display: inline-flex; align-items: center; justify-content: center; min-height: 44px; padding: 0 20px;
  border-radius: 999px; background: var(--btn-bg); color: var(--btn-ink); border: 0; cursor: pointer;
  font: 600 15px var(--f-body); text-decoration: none; white-space: nowrap;
  transition: background 160ms var(--ease), transform 160ms var(--ease);
}
.btn:hover { background: var(--btn-hover); }
.btn:active { transform: scale(0.97); }
.tel {
  display: inline-flex; align-items: center; justify-content: center; min-height: 44px; padding: 0 16px; border-radius: 999px;
  font: 500 15px var(--f-body); text-decoration: none; white-space: nowrap;
  box-shadow: inset 0 0 0 1px rgb(var(--ink-rgb) / 0.28);
  transition: box-shadow 160ms var(--ease);
}
.tel:hover { box-shadow: inset 0 0 0 1px var(--ink); }
.tel span { font-variant-numeric: tabular-nums; }

/* hero: the one loud thing (the wordmark) + a quiet index */
.hero {
  display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 460px); align-items: end; gap: 24px 48px;
  padding: clamp(40px, 10vh, 120px) 0 clamp(36px, 6vh, 64px);
  border-bottom: 1px solid var(--rule);
}
.word {
  /* sized to its grid column (index = 460px + 48px gap) so the wordmark never runs under the index at 1000-1440 px */
  margin: 0; font: 800 clamp(150px, min(26vw, calc((100vw - 2 * var(--gut) - 508px) / 2.4)), 360px)/0.78 var(--f-display); text-transform: uppercase;
  letter-spacing: -0.015em; margin-left: -0.04em;
}
.index { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--rule); }
.index a {
  display: grid; grid-template-columns: minmax(0, 1fr) auto; align-items: center; gap: 12px;
  min-height: 48px; padding: 8px 0; border-bottom: 1px solid var(--rule); text-decoration: none;
  font: 500 16px/1.25 var(--f-body);
}
.index a span:first-child { min-width: 0; text-wrap: balance; }
.index a:hover span:first-child { color: var(--cognac); }

/* status chips */
.chip {
  display: inline-flex; align-items: center; gap: 7px; height: 24px; padding: 0 10px; border-radius: 999px;
  font: 500 12px var(--f-body); white-space: nowrap; color: rgb(var(--ink-rgb) / 0.78);
  box-shadow: inset 0 0 0 1px rgb(var(--ink-rgb) / 0.2);
}
.chip::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: rgb(var(--ink-rgb) / 0.4); }
.chip.on { color: var(--ink); box-shadow: inset 0 0 0 1px rgb(var(--cognac-rgb) / 0.7); background: rgb(var(--cognac-rgb) / 0.12); }
.chip.on::before { background: var(--cognac); box-shadow: 0 0 0 3px rgb(var(--cognac-rgb) / 0.25); }

/* feed: changelog rail + media-first entry */
.feed { list-style: none; margin: 0; padding: 0; }
.entry {
  display: grid; grid-template-columns: 220px minmax(0, 1fr); gap: 20px 48px;
  padding: clamp(40px, 8vh, 88px) 0; border-bottom: 1px solid var(--rule);
  scroll-margin-top: 16px;
}
.rail { position: sticky; top: 24px; align-self: start; display: grid; gap: 10px; justify-items: start; padding-top: 4px; }
.what { margin: 0; font: 400 15px/1.4 var(--f-body); color: rgb(var(--ink-rgb) / 0.62); }
.dom {
  display: inline-flex; align-items: center; gap: 6px; min-height: 32px;
  font: 500 14px var(--f-mono); text-decoration: none; color: var(--ink);
  border-bottom: 1px solid rgb(var(--cognac-rgb) / 0.6);
}
a.dom:hover { color: var(--cognac); }
.dom.none { color: rgb(var(--ink-rgb) / 0.72); border-bottom-style: dashed; border-bottom-color: rgb(var(--ink-rgb) / 0.25); }
.body { min-width: 0; max-width: 1000px; }

.frame-link { display: block; text-decoration: none; border-radius: 18px; }
.frame {
  position: relative; display: block; aspect-ratio: 16 / 9; border-radius: 18px; overflow: hidden;
  background: radial-gradient(120% 90% at 30% 0%, var(--card) 0%, var(--card-2) 70%); box-shadow: var(--shadow);
  text-decoration: none; isolation: isolate;
  transition: box-shadow 240ms var(--ease);
}
a.frame-link:hover .frame { box-shadow: var(--shadow), 0 0 0 2px var(--cognac); }
.frame:not(.has-video) { aspect-ratio: auto; padding-top: 54px; }
.frame .dg { position: relative; display: block; width: 100%; height: auto; }
.frame video { position: absolute; inset: 0; width: 100%; height: 100%; background: #000; }
.vsl {
  position: absolute; left: 16px; top: 16px; z-index: 1;
  display: inline-flex; align-items: center; gap: 8px; height: 30px; padding: 0 12px 0 10px; border-radius: 999px;
  background: rgb(22 17 13 / 0.72); color: #f1e8da; backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px);
  font: 500 12px var(--f-body);
}
.vsl::before { content: ""; border-style: solid; border-width: 5px 0 5px 8px; border-color: transparent transparent transparent #f1e8da; }

.name {
  margin: 22px 0 0; font: 800 clamp(48px, 6.4vw, 96px)/0.86 var(--f-display); text-transform: uppercase;
  letter-spacing: -0.005em; text-wrap: balance;
}
.name a { text-decoration: none; }
.name a:hover { color: var(--cognac); }

/* end */
.end {
  display: flex; flex-wrap: wrap; align-items: end; justify-content: space-between; gap: 24px;
  padding-top: clamp(48px, 9vh, 96px);
}
.endword { margin: 0; font: 800 clamp(56px, 9vw, 128px)/0.85 var(--f-display); text-transform: uppercase; }
.endword a { text-decoration: none; }
.endword a:hover { color: var(--cognac); }

/* project page */
.p-hero { padding: clamp(32px, 8vh, 96px) 0 clamp(24px, 4vh, 40px); display: grid; gap: calc(18px + 0.1em); justify-items: start; font-size: clamp(72px, 15vw, 220px); }
.p-hero .chip { font-size: 12px; }
/* --lw = the title's longest word in characters (build.mjs), so one long word never overflows a phone. */
.p-name { margin: 0; font: 800 min(clamp(72px, 15vw, 220px), calc((100vw - 2 * var(--gut)) / (var(--lw, 8) * 0.58)))/0.86 var(--f-display); text-transform: uppercase; letter-spacing: -0.01em; margin-left: -0.03em; }
.p-col { max-width: 1120px; }
.p-frame { aspect-ratio: 16 / 9; }
.p-frame .vsl { height: 34px; font-size: 13px; }

.site {
  display: grid; gap: 28px; margin-top: clamp(28px, 5vh, 48px); padding: clamp(20px, 3vw, 36px);
  border-radius: 18px; background: var(--btn-bg); color: var(--btn-ink); text-decoration: none;
  transition: background 200ms var(--ease);
}
.site:hover { background: var(--btn-hover); }
.site-top { display: flex; justify-content: space-between; gap: 12px; font: 500 14px var(--f-body); opacity: 0.7; }
/* --ul = the hostname's length (build.mjs), so a long host such as portal-demo.utopiamodels.ai still fits on one line. */
.site-url { margin: 0; font: 800 min(8.6vw, 132px, calc((min(100vw, 1120px) - 2 * var(--gut) - 72px) / (var(--ul, 16) * 0.5)))/0.9 var(--f-display); letter-spacing: -0.01em; white-space: nowrap; }
.site-url i { font-style: normal; display: inline-block; transition: transform 240ms var(--ease); }
.site:hover .site-url i { transform: translate(6px, -6px); }

.sec { margin-top: clamp(56px, 10vh, 112px); }
.sec-h { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; padding-bottom: 14px; margin-bottom: 20px; border-bottom: 1px solid var(--rule); }
.sec-h h2 { margin: 0; font: 800 clamp(32px, 4vw, 48px)/0.9 var(--f-display); text-transform: uppercase; }
.sec-h span { font: 400 14px var(--f-body); color: rgb(var(--ink-rgb) / 0.6); }

/* write-up */
.prose { max-width: 68ch; display: grid; gap: 16px; }
.prose p { margin: 0; font: 400 18px/1.6 var(--f-body); color: rgb(var(--ink-rgb) / 0.86); text-wrap: pretty; }

/* meta prompt (structure from docs prompt.tsx: harness toggle, card, copy, fold, char count) */
.hrow { display: flex; flex-wrap: wrap; align-items: center; gap: 10px 14px; margin-bottom: 14px; }
.hlabel { font: 500 14px var(--f-body); color: rgb(var(--ink-rgb) / 0.6); }
.hgroup { display: inline-flex; flex-wrap: wrap; gap: 2px; padding: 4px; border-radius: 14px; box-shadow: inset 0 0 0 1px var(--rule); background: var(--card-2); }
.hgroup button {
  font: 500 14px var(--f-body); color: rgb(var(--ink-rgb) / 0.68); background: none; border: 0; cursor: pointer;
  min-height: 36px; padding: 0 12px; border-radius: 10px;
}
.hgroup button:hover { color: var(--ink); }
.hgroup button[aria-checked="true"] { background: var(--ink); color: var(--ground); }
.prompt { border-radius: 18px; background: var(--card); box-shadow: var(--shadow); overflow: hidden; }
.phead { display: flex; flex-wrap: wrap; align-items: center; gap: 16px 20px; padding: 22px; }
.phead > div { flex: 1 1 280px; min-width: 0; }
.pname { margin: 0; font: 600 19px/1.3 var(--f-body); letter-spacing: -0.01em; }
.pnote { margin: 6px 0 0; font: 400 15px/1.45 var(--f-body); color: rgb(var(--ink-rgb) / 0.62); }
.pbar { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 4px 22px; border-top: 1px solid var(--rule); }
.fold { display: inline-flex; align-items: center; gap: 8px; min-height: 44px; background: none; border: 0; cursor: pointer; font: 500 14px var(--f-body); color: rgb(var(--ink-rgb) / 0.72); padding: 0; }
.fold:hover { color: var(--ink); }
.fold i { width: 7px; height: 7px; border-right: 2px solid currentColor; border-bottom: 2px solid currentColor; rotate: -45deg; transition: rotate 160ms var(--ease); }
.fold[aria-expanded="true"] i { rotate: 45deg; }
.chars { font: 400 12px var(--f-mono); font-variant-numeric: tabular-nums; color: rgb(var(--ink-rgb) / 0.75); }
.pbody { padding: 0 22px 22px; }
.pbody pre {
  margin: 0; padding: 18px; border-radius: 12px; background: var(--ground);
  font: 13px/1.65 var(--f-mono); color: rgb(var(--ink-rgb) / 0.88); white-space: pre-wrap; overflow-wrap: anywhere;
}
.pbody mark { background: rgb(var(--cognac-rgb) / 0.28); color: inherit; border-radius: 3px; padding: 0 2px; }

@media (max-width: 1000px) {
  .hero { grid-template-columns: 1fr; }
  .word { font-size: clamp(150px, 26vw, 360px); }
  .index { max-width: 560px; }
}
@media (max-width: 760px) {
  .entry { grid-template-columns: 1fr; gap: 16px; padding: 44px 0; }
  .rail { position: static; display: flex; flex-wrap: wrap; align-items: center; gap: 8px 12px; padding: 0; order: 2; }
  .rail .what { flex-basis: 100%; order: 3; }
  .body { display: contents; }
  .frame-link { order: 1; }
  .frame { border-radius: 14px; }
  .name { order: 0; margin: 0; font-size: clamp(40px, 11.5vw, 60px); }
  .vsl { left: 10px; top: 10px; height: 26px; font-size: 11px; }
  .frame:not(.has-video) { padding-top: 44px; }
  .acts { width: 100%; flex-wrap: nowrap; }
  .acts > * { flex: 1 1 auto; min-height: 42px; font-size: 14px; padding: 0 12px; }
  .bar { padding: 8px 0 0; gap: 4px; }
  .home { min-height: 36px; }
  .hero { padding-top: 48px; }
  .entry:first-child { padding-top: 36px; }
  .end { align-items: stretch; flex-direction: column; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { transition: none !important; animation: none !important; }
}