@font-face {
  font-family: "Spline Sans Mono";
  src: url("/fonts/spline-sans-mono.woff2") format("woff2");
  font-weight: 300 700;
  font-display: swap;
}
@font-face {
  font-family: "Spline Sans";
  src: url("/fonts/spline-sans.woff2") format("woff2");
  font-weight: 300 700;
  font-display: swap;
}

/* Greige: loom-state cloth, before dyeing. Walnut at night. */
:root {
  --ground: #cfcdbd;
  --ink: #2a2620;
  --soft: #5e594d;
  --rule: #a9a594;
  --mark: #9c2f24;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --ground: #1f1a15;
    --ink: #e6dfcf;
    --soft: #a89f8c;
    --rule: #4a4035;
    --mark: #e08a6e;
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--ground);
  color: var(--ink);
  font: 400 1.0625rem/1.55 "Spline Sans", system-ui, sans-serif;
}
a { color: inherit; text-decoration-color: var(--mark); text-underline-offset: 0.2em; }
a:hover { color: var(--mark); }

.frame {
  max-width: 62rem;
  margin: 0 auto;
  padding: 1.5rem 1rem 3rem;
}

/* Header and footer are set like the selvage: a narrow mono edge. */
.selvage {
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem 1.5rem;
  justify-content: space-between;
  font: 500 0.78rem/1.4 "Spline Sans Mono", monospace;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--soft);
  border-bottom: 1px solid var(--rule);
  padding-bottom: 0.6rem;
}
.selvage a { text-decoration: none; }
.selvage .site { color: var(--ink); font-weight: 650; }
footer.selvage { border-bottom: 0; border-top: 1px solid var(--rule); padding: 0.6rem 0 0; margin-top: 3rem; }

h1 {
  font: 650 clamp(1.9rem, 5vw, 3rem)/1.05 "Spline Sans", sans-serif;
  letter-spacing: -0.02em;
  margin: 2rem 0 0.4rem;
}
.lede { max-width: 38rem; color: var(--soft); margin: 0 0 1.5rem; }

/* The cloth. Every cell is one crossing. */
.loom { container-type: inline-size; }
.cloth {
  --W: 40;
  display: grid;
  grid-template-columns: repeat(var(--W), 1fr);
  width: min(100%, calc(var(--W) * 1.15rem));
  font: 500 calc(min(100cqi, var(--W) * 1.15rem) / var(--W) * 0.6) / 1 "Spline Sans Mono", monospace;
  user-select: none;
  touch-action: manipulation;
  box-shadow: 0 1px 0 var(--rule), 0 10px 30px -18px #0008;
  transition: transform 0.5s ease;
}
.cloth.turning { transform: rotateY(90deg); }
.cloth i {
  font-style: normal;
  aspect-ratio: 1;
  display: grid;
  place-items: center;
  background: var(--a);
  color: var(--af);
  cursor: crosshair;
}
.cloth i.f { background: var(--b); color: var(--bf); }
/* A lifted thread: everything else falls back, and the lifted thread's
   hidden characters come up through the cloth, ringed. */
.cloth.lifting i { opacity: 0.28; }
.cloth.lifting i.on { opacity: 1; }
.cloth.lifting i.under { outline: 1px dashed currentColor; outline-offset: -2px; }

.reading {
  min-height: 4.6rem;
  margin: 0.9rem 0 0;
  font: 400 0.95rem/1.5 "Spline Sans Mono", monospace;
}
.reading .which { display: block; color: var(--soft); font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.04em; }
.reading .text { word-break: break-all; }
.reading s { text-decoration: none; opacity: 0.4; }

.controls { display: flex; flex-wrap: wrap; gap: 0.4rem; margin: 1rem 0 0.4rem; }
.controls button {
  font: 500 0.82rem/1 "Spline Sans Mono", monospace;
  padding: 0.55rem 0.7rem;
  border: 1px solid var(--rule);
  background: transparent;
  color: var(--ink);
  border-radius: 2px;
  cursor: pointer;
}
.controls button[aria-pressed="true"] { background: var(--ink); color: var(--ground); border-color: var(--ink); }
.controls .turn { margin-left: auto; }
.note { font-size: 0.9rem; color: var(--soft); margin: 0.2rem 0 0; min-height: 1.4em; }

.yarns {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr));
  gap: 1.5rem;
  margin-top: 2.5rem;
  border-top: 1px solid var(--rule);
  padding-top: 1.2rem;
}
.yarns h2, .after h2 {
  font: 500 0.78rem/1.4 "Spline Sans Mono", monospace;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--soft);
  margin: 0 0 0.5rem;
}
.yarns .chip { display: inline-block; width: 0.8em; height: 0.8em; vertical-align: -0.05em; margin-right: 0.4em; }
.yarns p { margin: 0; max-width: 32rem; }
.after { margin-top: 2rem; max-width: 38rem; }
.after p { margin: 0; }

/* Index: one swatch per piece. */
.pieces { list-style: none; padding: 0; margin: 2rem 0 0; display: grid; gap: 2rem; grid-template-columns: repeat(auto-fill, minmax(17rem, 1fr)); }
.pieces a { text-decoration: none; display: block; }
.pieces svg { display: block; width: 100%; height: auto; box-shadow: 0 10px 30px -18px #0008; }
.pieces .t { display: block; font-weight: 650; margin-top: 0.6rem; }
.pieces .b { display: block; color: var(--soft); font-size: 0.92rem; }
.pieces a:hover .t { color: var(--mark); }

.prose { max-width: 38rem; }
.prose h2 { font-size: 1.15rem; margin: 2rem 0 0.4rem; }
.prose p, .prose li { margin: 0 0 0.8rem; }
.prose .src { font-size: 0.85rem; color: var(--soft); }
.demo { max-width: 16rem; margin: 0.8rem 0 1rem; }

@media (prefers-reduced-motion: reduce) {
  .cloth { transition: none; }
}