/* okay computer, in okay engineering's style (after teenage.engineering): a white page, light lowercase
   type, one flat isometric line drawing, "notice. read this first." in four columns, a hairline status
   table, the black band and a quiet footer. Signal orange only on the light and small marks. */
:root {
  --page: #ffffff;
  --ink: #000000;
  --dim: #8c8c8c;
  --line: #d9d8d3;
  --signal: #ff5a1f;
  --face-top: #ffffff;
  --face-left: #ecebe8;
  --face-right: #dcdad5;
  --sans: "Inter", "Helvetica Neue", Helvetica, Arial, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, Menlo, monospace;
  --gutter: clamp(16px, 3vw, 36px);
  --ease: cubic-bezier(.2, .7, .1, 1);
  color-scheme: light;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body { background: var(--page); color: var(--ink); font: 300 16px/1.35 var(--sans); letter-spacing: -.01em; -webkit-font-smoothing: antialiased; }
a { color: inherit; text-decoration: none; }
b { font-weight: 400; }
.mono { font-family: var(--mono); letter-spacing: 0; }
::selection { background: var(--signal); color: #fff; }
.js .rv { opacity: 0; transform: translateY(20px); transition: opacity 1s var(--ease), transform 1s var(--ease); }
.js .rv.in { opacity: 1; transform: none; }

/* ---------- Header: wordmark, menu, fine print, glyph ---------- */
.top { display: grid; grid-template-columns: auto 1fr auto auto; align-items: start; gap: 0 clamp(16px, 2.4vw, 40px); padding: 14px var(--gutter) 0; }
.word { font-size: 17px; line-height: 1.05; padding-top: 2px; }
.nav { display: flex; flex-wrap: wrap; gap: 6px clamp(16px, 2.6vw, 40px); font-size: 17px; padding-top: 2px; }
.nav a:hover { color: var(--dim); }
.fine { font-size: 8px; padding-top: 4px; }
.glyph svg { width: clamp(70px, 8vw, 110px); height: auto; display: block; }
.g-ring { fill: none; stroke: var(--ink); stroke-width: 9; }
.g-block { fill: var(--ink); }
.g-dot { fill: var(--signal); }

/* ---------- Hero: the title, the drawing, one paragraph, the status ---------- */
main { padding: 0 var(--gutter); }
.hero { padding-top: clamp(48px, 8vw, 110px); text-align: center; }
.title { font-weight: 200; font-size: clamp(44px, 8vw, 112px); letter-spacing: -.055em; line-height: .95; }
.hero-fig { width: min(100%, 700px); margin: clamp(24px, 4vw, 48px) auto 0; }
.hero-fig svg { width: 100%; height: auto; display: block; overflow: visible; }
.f-top { fill: var(--face-top); stroke: var(--ink); stroke-width: 1; stroke-linejoin: round; }
.f-left { fill: var(--face-left); stroke: var(--ink); stroke-width: 1; stroke-linejoin: round; }
.f-right { fill: var(--face-right); stroke: var(--ink); stroke-width: 1; stroke-linejoin: round; }
.edge-hi { fill: none; stroke: #fff; stroke-width: 1; opacity: .9; }
.vent line { stroke: var(--ink); stroke-width: 1; stroke-linecap: round; opacity: .55; }
.led { fill: var(--signal); stroke: var(--ink); stroke-width: 1; animation: breathe 3.2s ease-in-out infinite; }
@keyframes breathe { 50% { fill: #ffd2c0; } }
.call line { stroke: #8f8a80; stroke-width: .7; stroke-dasharray: 2 3; }
.call-t { font: 400 11px var(--mono); fill: #5f5b55; }
.lede { max-width: 30em; margin: clamp(20px, 3vw, 36px) auto 0; font-size: clamp(18px, 2vw, 22px); letter-spacing: -.02em; }
.status-line { margin-top: 18px; font-size: 12px; color: var(--dim); display: inline-flex; align-items: center; gap: 8px; }
.dot { width: 7px; height: 7px; border-radius: 50%; background: var(--signal); }

/* ---------- Notice: four columns ---------- */
.notice { margin-top: clamp(80px, 10vw, 140px); padding-top: clamp(28px, 4vw, 48px); border-top: 1px solid var(--ink); }
.notice h2, .status h2 { text-align: center; font-weight: 300; font-size: clamp(28px, 3.6vw, 46px); letter-spacing: -.035em; line-height: 1.05; }
.cols { margin-top: clamp(28px, 4vw, 48px); display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 24px; font-size: 12px; line-height: 1.45; }
.cols a { text-decoration: underline; text-underline-offset: 2px; }

/* ---------- Status: a hairline table ---------- */
.status { margin-top: clamp(80px, 10vw, 140px); }
.so-far { width: min(100%, 720px); margin: clamp(24px, 3vw, 40px) auto 0; border-collapse: collapse; font-size: 14px; }
.so-far th, .so-far td { text-align: left; padding: 10px 0; border-top: 1px solid var(--line); vertical-align: top; }
.so-far tr:last-child th, .so-far tr:last-child td { border-bottom: 1px solid var(--line); }
.so-far th { font-weight: 400; width: 38%; padding-right: 16px; }
.so-far td { color: var(--dim); }

/* ---------- The black band and the footer ---------- */
.band { display: block; margin-top: clamp(80px, 10vw, 140px); background: #121212; color: #fff; text-align: center; padding: 22px var(--gutter); font-size: clamp(18px, 2.2vw, 24px); letter-spacing: -.02em; }
.band span { color: var(--signal); }
.band:hover { background: #000; }
.foot { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 12px 24px; padding: 24px clamp(16px, 3.3vw, 47px); font-size: 13.6px; }
.foot-links { display: flex; flex-wrap: wrap; gap: 14px; font-weight: 200; }
.foot-links a:hover, .foot-right a:hover { color: var(--dim); }
.foot-right { font-weight: 200; }
.foot-right a { text-decoration: underline; text-underline-offset: 2px; text-decoration-thickness: 1px; }

/* ---------- 404 ---------- */
.lost { padding: clamp(80px, 14vw, 180px) 0; text-align: center; }
.lost p { margin-top: 18px; color: var(--dim); }
.lost a { text-decoration: underline; text-underline-offset: 2px; }

@media (max-width: 760px) {
  .top { grid-template-columns: 1fr auto; row-gap: 14px; }
  .nav { grid-column: 1 / -1; grid-row: 2; font-size: 15px; }
  .fine { display: none; }
  .cols { grid-template-columns: 1fr 1fr; }
  .call-t { font-size: 15px; }
  .foot { flex-direction: column; align-items: flex-start; }
}
@media (max-width: 420px) { .cols { grid-template-columns: 1fr; } }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .js .rv { opacity: 1; transform: none; transition: none; }
  .led { animation: none; }
}