/* okay engineering: calm, precise, a little playful. Warm grey paper, ink, one signal orange.
   Lowercase grotesk for words; mono for anything you'd find stamped on a part. */
:root {
  --paper: #e9e7e2;
  --paper-2: #f3f1ec;
  --ink: #141413;
  --ink-2: #47453f;
  --ink-3: #85827a;
  --line: #cdc9c0;
  --signal: #ff5a1f;
  --night: #121211;
  --sans: "Inter Tight", "Helvetica Neue", Helvetica, Arial, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, Menlo, monospace;
  --gutter: clamp(16px, 4vw, 56px);
  --max: 1320px;
  --ease: cubic-bezier(.2, .8, .2, 1);
  color-scheme: light;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
body { background: var(--paper); color: var(--ink); font: 400 16px/1.5 var(--sans); -webkit-font-smoothing: antialiased; }
a { color: inherit; }
::selection { background: var(--signal); color: #fff; }
.mono { font-family: var(--mono); font-size: 12px; letter-spacing: .02em; }
.kicker { color: var(--ink-3); margin-bottom: 20px; text-transform: lowercase; }

/* ---------- the drawing: the kit's light theme, retuned to our paper ---------- */
.iso.oe-fig {
  --anatomy-page: var(--paper); --anatomy-card: var(--paper); --anatomy-paper: #f6f4f0;
  --anatomy-face: #fbfaf7; --anatomy-top: #fbfaf7;
  --anatomy-shade-0: #d7d3cb; --anatomy-shade-1: #e0ddd5; --anatomy-shade-2: #e9e6df; --anatomy-shade-3: #f1eee8;
  --anatomy-hi: #23221f; --anatomy-mid: #8b877e; --anatomy-lo: #b5b1a8; --anatomy-faint: #d2cec6;
  --anatomy-halo: #7d786c; --anatomy-halo-opacity: .28; --anatomy-dot: #33322e;
  background: none;
}
.oe-signal .iso-top { fill: var(--signal); }
.oe-signal .iso-shade[data-shade="0"] { fill: #c9441a; }
.oe-signal .iso-shade[data-shade="1"] { fill: #d84c1d; }
.oe-signal .iso-shade[data-shade="2"] { fill: #e65220; }
.oe-signal .iso-shade[data-shade="3"] { fill: #f05722; }
.oe-signal .iso-fill { fill: #e65220; }
.oe-led .iso-top, .oe-led .iso-shade { transition: fill .15s; }
.oe-fig.lit .oe-led .iso-top { fill: var(--signal); }

/* ---------- bar ---------- */
.bar { position: sticky; top: 0; z-index: 20; display: flex; align-items: center; gap: 28px; padding: 14px var(--gutter); background: color-mix(in srgb, var(--paper) 86%, transparent); backdrop-filter: saturate(1.2) blur(12px); border-bottom: 1px solid var(--line); }
.mark { display: inline-flex; align-items: center; gap: 10px; font-weight: 600; letter-spacing: -.015em; text-decoration: none; font-size: 15px; }
.mark-sq { width: 15px; height: 15px; background: var(--ink); border-radius: 3.5px; position: relative; }
.mark-sq::after { content: ""; position: absolute; inset: 4px; border-radius: 50%; background: var(--signal); }
.nav { display: flex; gap: 26px; margin-left: auto; }
.nav a { font-size: 14px; color: var(--ink-2); text-decoration: none; transition: color .2s; }
.nav a:hover { color: var(--ink); }
.bar-meta { color: var(--ink-3); display: inline-flex; align-items: center; gap: 8px; }
.dot-live { width: 6px; height: 6px; border-radius: 50%; background: var(--signal); }

/* ---------- hero ---------- */
.hero { max-width: calc(var(--max) + 2 * var(--gutter)); margin: 0 auto; padding: clamp(40px, 5vw, 72px) var(--gutter) 0; display: grid; grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr); column-gap: clamp(24px, 4vw, 64px); align-items: end; }
.hero-head { padding-bottom: clamp(24px, 4vw, 56px); }
.hero h1 { font-weight: 500; font-size: clamp(44px, 6.4vw, 100px); line-height: .94; letter-spacing: -.05em; }
.hero-lede { margin-top: 24px; max-width: 26em; color: var(--ink-2); font-size: clamp(16px, 1.4vw, 19px); }
.stage { position: relative; }
.stage .iso { max-width: 780px; margin: 0 0 0 auto; cursor: pointer; outline: none; border-radius: 16px; }
.specs, .hero-note { grid-column: 1 / -1; }
.stage .iso:focus-visible { box-shadow: 0 0 0 2px var(--signal); }
.stage-bar { display: flex; gap: 12px 28px; flex-wrap: wrap; justify-content: space-between; padding: 14px 0; border-top: 1px solid var(--ink); color: var(--ink-3); }
.stage-read { color: var(--ink); }
.specs { display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); border-bottom: 1px solid var(--line); }
.specs > div { padding: 14px 16px 16px 0; border-right: 1px solid var(--line); margin-right: 16px; }
.specs > div:last-child { border-right: 0; }
.specs dt { color: var(--ink-3); margin-bottom: 4px; }
.specs dd { color: var(--ink); font-size: 13px; }
.hero-note { margin-top: 18px; max-width: 44em; color: var(--ink-2); font-size: 15px; }

/* ---------- manifesto ---------- */
.manifesto { margin-top: clamp(96px, 12vw, 176px); background: var(--night); color: #efede8; padding: clamp(72px, 10vw, 144px) var(--gutter); }
.manifesto > * { max-width: var(--max); margin-left: auto; margin-right: auto; }
.manifesto .kicker { color: #8f8b82; }
.big { font-weight: 500; font-size: clamp(32px, 4.8vw, 72px); line-height: 1.02; letter-spacing: -.04em; max-width: 21ch; }
.big span { color: var(--signal); }
.manifesto-cols { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(24px, 5vw, 80px); margin-top: clamp(40px, 6vw, 72px); color: #b9b5ac; font-size: 17px; max-width: var(--max); }

/* ---------- sections ---------- */
.sec { max-width: calc(var(--max) + 2 * var(--gutter)); margin: 0 auto; padding: clamp(96px, 12vw, 168px) var(--gutter) 0; scroll-margin-top: 56px; }
.sec h2, .contact h2 { font-weight: 500; font-size: clamp(34px, 4.6vw, 64px); line-height: 1; letter-spacing: -.04em; }
.sec-sub { margin-top: 16px; max-width: 38em; color: var(--ink-2); font-size: 17px; }

/* objects */
.objects { list-style: none; margin-top: clamp(40px, 5vw, 64px); display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 1px; background: var(--line); border: 1px solid var(--line); }
.obj { background: var(--paper-2); padding: 20px 20px 26px; display: grid; gap: 10px; align-content: start; transition: background .3s var(--ease); }
.obj:hover { background: #f8f6f2; }
.obj-fig svg { width: 100%; height: auto; display: block; }
.veil polygon, .veil polyline, .veil line, .veil ellipse, .veil path { fill: none; stroke: var(--ink-3); stroke-width: 1.2; stroke-dasharray: 3 4; stroke-linejoin: round; stroke-linecap: round; }
.pip { fill: var(--signal); }
.obj-meta { display: flex; justify-content: space-between; align-items: baseline; gap: 8px; padding-top: 12px; border-top: 1px solid var(--line); }
.obj-meta b { font-weight: 500; font-size: 13px; color: var(--ink); }
.st { color: var(--ink-3); }
.st-bench { color: var(--signal); }
.obj-line { color: var(--ink-2); font-size: 14.5px; }

/* field manual */
.rules { list-style: none; margin-top: clamp(40px, 5vw, 64px); display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); border-top: 1px solid var(--ink); }
.rules li { padding: 26px 28px 34px 0; border-bottom: 1px solid var(--line); }
.rules li:nth-child(3n+2), .rules li:nth-child(3n) { padding-left: 28px; border-left: 1px solid var(--line); }
.rules .n { color: var(--signal); }
.rules h3 { margin-top: 18px; font-weight: 500; font-size: clamp(22px, 2.2vw, 28px); letter-spacing: -.025em; line-height: 1.1; }
.rules p { margin-top: 10px; color: var(--ink-2); font-size: 15px; max-width: 30em; }

/* materials */
.swatches { list-style: none; margin-top: clamp(40px, 5vw, 64px); display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: clamp(16px, 2vw, 28px); }
.swatches li { display: grid; grid-template-columns: minmax(0, 1fr); align-content: start; gap: 6px; }
.swatches b { font-weight: 500; font-size: 15px; margin-top: 10px; }
.swatches .mono { color: var(--ink-3); }
.sw { aspect-ratio: 1; border-radius: 50%; box-shadow: inset 0 -10px 24px #0000001f, inset 0 8px 18px #ffffff66, 0 12px 28px -14px #00000059; }
.sw-alu { background: radial-gradient(circle at 35% 30%, #f4f4f2, #c9c8c4 55%, #a9a8a3); }
.sw-signal { background: radial-gradient(circle at 35% 30%, #ff8a5a, var(--signal) 55%, #d4431a); }
.sw-steel { background: radial-gradient(circle at 35% 30%, #5a5955, #2b2a28 55%, #151413); }
.sw-oak { background: repeating-linear-gradient(100deg, #00000000 0 7px, #6b4a2a14 7px 9px), radial-gradient(circle at 35% 30%, #e2c49a, #c39a68 55%, #9c7548); }
.sw-pp { background: radial-gradient(circle at 35% 30%, #fbfaf6, #e6e3db 55%, #cfcac0); }

/* process */
.steps { list-style: none; margin-top: clamp(40px, 5vw, 64px); display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); gap: clamp(14px, 1.6vw, 24px); }
.steps li { display: grid; gap: 8px; align-content: start; padding-top: 16px; border-top: 1px solid var(--ink); }
.steps li > .mono { color: var(--signal); }
.steps b { font-weight: 600; font-size: 18px; letter-spacing: -.01em; }
.steps p { color: var(--ink-2); font-size: 14.5px; }

/* contact */
.contact { max-width: calc(var(--max) + 2 * var(--gutter)); margin: clamp(96px, 12vw, 168px) auto 0; padding: clamp(56px, 7vw, 96px) var(--gutter) clamp(96px, 12vw, 160px); border-top: 1px solid var(--line); }
.contact h2 { font-size: clamp(44px, 7vw, 104px); letter-spacing: -.05em; }
.mail { display: inline-flex; gap: 12px; margin-top: 32px; font-size: clamp(15px, 1.8vw, 20px); text-decoration: none; padding: 16px 26px; border: 1px solid var(--ink); border-radius: 999px; transition: background .25s var(--ease), color .25s var(--ease); }
.mail:hover { background: var(--ink); color: var(--paper); }

/* footer */
.foot { display: flex; flex-wrap: wrap; gap: 8px 28px; justify-content: space-between; padding: 22px var(--gutter); border-top: 1px solid var(--line); color: var(--ink-3); }
.foot a { color: var(--ink-2); }

/* reveal on scroll (only once site.js marks the page) */
.js .reveal { opacity: 0; transform: translateY(18px); transition: opacity .8s var(--ease), transform .8s var(--ease); }
.js .reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) { .js .reveal { opacity: 1; transform: none; transition: none; } }

/* 404 */
.lost { min-height: 70vh; display: grid; place-content: center; text-align: center; gap: 18px; padding: var(--gutter); }
.lost h1 { font-weight: 500; font-size: clamp(36px, 6vw, 72px); letter-spacing: -.045em; }

@media (max-width: 1000px) {
  .hero { grid-template-columns: 1fr; }
  .stage .iso { margin: 0 auto; }
  .specs { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .specs > div:nth-child(3) { border-right: 0; }
  .objects { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .rules { grid-template-columns: 1fr 1fr; }
  .rules li:nth-child(n) { padding-left: 0; border-left: 0; }
  .rules li:nth-child(2n) { padding-left: 28px; border-left: 1px solid var(--line); }
  .swatches { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .steps { grid-template-columns: repeat(3, minmax(0, 1fr)); row-gap: 32px; }
}
@media (max-width: 620px) {
  .nav { display: none; }
  .bar-meta { margin-left: auto; }
  .specs { grid-template-columns: 1fr 1fr; }
  .specs > div:nth-child(n) { border-right: 0; margin-right: 0; }
  .stage-hint { display: none; }
  .manifesto-cols, .rules { grid-template-columns: 1fr; }
  .rules li:nth-child(n) { padding-left: 0; border-left: 0; }
  .swatches { grid-template-columns: 1fr 1fr; }
  .steps { grid-template-columns: 1fr 1fr; }
  .obj { padding: 14px 14px 18px; }
  .obj-meta { flex-direction: column; gap: 2px; }
  .obj-line { font-size: 13.5px; }
}