/* self-hosted so the page makes no third-party requests */
@font-face {
  font-family: "Barlow";
  font-weight: 400;
  font-display: swap;
  src: url("vendor/fonts/barlow-latin-400-normal.woff2") format("woff2");
}
@font-face {
  font-family: "Barlow";
  font-weight: 500;
  font-display: swap;
  src: url("vendor/fonts/barlow-latin-500-normal.woff2") format("woff2");
}
@font-face {
  font-family: "Barlow Condensed";
  font-weight: 500;
  font-display: swap;
  src: url("vendor/fonts/barlow-condensed-latin-500-normal.woff2") format("woff2");
}
@font-face {
  font-family: "Barlow Condensed";
  font-weight: 600;
  font-display: swap;
  src: url("vendor/fonts/barlow-condensed-latin-600-normal.woff2") format("woff2");
}
@font-face {
  font-family: "Barlow Condensed";
  font-weight: 700;
  font-display: swap;
  src: url("vendor/fonts/barlow-condensed-latin-700-normal.woff2") format("woff2");
}

:root {
  --paper: #eef0ec;
  --ink: #1e2528;
  --muted: #5b6669;
  --pei: #c8a465;
  --pei-dark: #9c7a40;
  --petg: #2f7f8c;
  --hot: #e2652b;
  --body: "Barlow", system-ui, sans-serif;
  --display: "Barlow Condensed", "Arial Narrow", sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font: 400 1.0625rem/1.55 var(--body);
}

h1, h2 {
  font-family: var(--display);
  font-weight: 700;
  line-height: 0.95;
  letter-spacing: -0.01em;
  margin: 0 0 0.4em;
}

h1 { font-size: clamp(3rem, 9vw, 7.5rem); }
h2 { font-size: clamp(2.2rem, 5vw, 4rem); }

p { margin: 0 0 1em; max-width: 34em; }
code { font-size: 0.92em; }

/* textured PEI plate: two offset speckle layers over a gold base */
.bed {
  position: relative;
  border-radius: 14px;
  background:
    radial-gradient(circle at 30% 40%, rgb(255 240 200 / 0.35) 0 0.6px, transparent 1.2px) 0 0 / 7px 7px,
    radial-gradient(circle at 70% 60%, rgb(90 60 20 / 0.25) 0 0.6px, transparent 1.3px) 3px 2px / 9px 9px,
    linear-gradient(160deg, #d6b675, var(--pei) 55%, #b8945a);
  box-shadow: inset 0 0 0 1px rgb(0 0 0 / 0.12), 0 18px 40px -24px rgb(60 40 10 / 0.6);
  overflow: hidden;
  aspect-ratio: 1;
  display: grid;
  place-items: center;
}

.bed > img {
  width: 92%;
  height: 92%;
  object-fit: contain;
  /* --p is print progress 0..1, revealed bottom-up like layers */
  clip-path: inset(calc((1 - var(--p, 0)) * 100%) 0 0 0);
  mix-blend-mode: multiply;
}

.nozzle {
  position: absolute;
  left: 4%;
  right: 4%;
  top: calc(4% + (1 - var(--p, 0)) * 92%);
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--hot) 15% 85%, transparent);
  opacity: 0;
  transition: opacity 0.3s;
  pointer-events: none;
}
.nozzle::after {
  content: "";
  position: absolute;
  top: -5px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--hot);
  box-shadow: 0 0 14px 4px rgb(226 101 43 / 0.55);
  animation: sweep 0.9s ease-in-out infinite alternate;
}
.bed.printing .nozzle { opacity: 1; }

@keyframes sweep {
  from { left: 10%; }
  to { left: calc(90% - 12px); }
}

.bed canvas {
  position: absolute;
  inset: 0;
  width: 100% !important;
  height: 100% !important;
  cursor: grab;
  touch-action: none;
}
.bed canvas:active { cursor: grabbing; }
.bed.is-3d > img { visibility: hidden; }

.rotate {
  position: absolute;
  right: 14px;
  bottom: 14px;
  z-index: 2;
  font: 600 1rem/1 var(--display);
  letter-spacing: 0.02em;
  padding: 0.6em 1.1em;
  border: 0;
  border-radius: 999px;
  background: var(--ink);
  color: var(--paper);
  cursor: pointer;
  transition: background 0.2s, transform 0.2s;
}
.rotate:hover { background: var(--petg); }
.rotate:active { transform: scale(0.96); }
.rotate[aria-pressed="true"] { background: var(--petg); }
.rotate:focus-visible { outline: 3px solid var(--hot); outline-offset: 3px; }
.rotate[hidden] { display: none; }

.status {
  position: absolute;
  left: 16px;
  bottom: 18px;
  font-size: 0.85rem;
  color: rgb(30 37 40 / 0.75);
  z-index: 2;
}

/* hero */
.hero {
  min-height: 100svh;
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
  align-items: center;
  gap: clamp(24px, 5vw, 80px);
  padding: clamp(24px, 6vw, 96px);
  max-width: 1400px;
  margin: 0 auto;
}
.hero .hint { color: var(--muted); }
.hero em { font-style: normal; font-weight: 500; color: var(--petg); }
.bed-hero { aspect-ratio: 5 / 7; width: min(100%, 86svh * 5 / 7); justify-self: center; }

/* parts: a short sticky run so each one holds still while it finishes printing */
.part { height: 150vh; }
.part-sticky {
  position: sticky;
  top: 0;
  height: 100vh;
  display: grid;
  grid-template-columns: 1fr minmax(0, min(70vh, 560px));
  align-items: center;
  gap: clamp(24px, 5vw, 80px);
  padding: 0 clamp(16px, 6vw, 96px);
  max-width: 1400px;
  margin: 0 auto;
}
.part h2 { overflow-wrap: anywhere; }
.part h2 .file {
  display: block;
  font: 500 1rem/1.4 var(--body);
  color: var(--muted);
  letter-spacing: 0;
  margin-top: 0.5em;
}

.dims {
  display: flex;
  gap: 2.5rem;
  margin: 0 0 1.4em;
}
.dims div { display: flex; flex-direction: column-reverse; }
.dims dt { color: var(--muted); font-size: 0.9rem; }
.dims dd {
  margin: 0;
  font: 600 2.4rem/1 var(--display);
  font-variant-numeric: tabular-nums;
}
.dims dd small { font-size: 0.5em; font-weight: 500; margin-left: 0.15em; }

/* stacks */
.stacks {
  padding: clamp(48px, 10vw, 140px) clamp(16px, 6vw, 96px);
  max-width: 1400px;
  margin: 0 auto;
}
.stacks-head { margin-bottom: 2.5rem; }
.stack-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 28px;
}
.stack-card .bed { aspect-ratio: 5 / 7; }
.stack-card h3 {
  font: 600 1.6rem/1.1 var(--display);
  margin: 0.8em 0 0.2em;
  font-variant-numeric: tabular-nums;
}
.stack-card p { color: var(--muted); font-size: 0.95rem; }

footer {
  padding: 40px clamp(16px, 6vw, 96px) 60px;
  color: var(--muted);
  font-size: 0.9rem;
  max-width: 1400px;
  margin: 0 auto;
}

@media (max-width: 820px) {
  .hero { grid-template-columns: 1fr; padding-top: 48px; }
  .bed-hero { width: min(100%, 64svh * 5 / 7); }
  .part { height: 150svh; }
  .part-sticky {
    grid-template-columns: 1fr;
    align-content: center;
    height: 100svh;
    gap: 16px;
  }
  .part-sticky { grid-template-columns: minmax(0, 1fr); }
  .part-sticky .bed { width: min(100%, 52svh); justify-self: center; }
  .dims { gap: 1.5rem; margin-bottom: 0.6em; }
  .dims dd { font-size: 1.8rem; }
  .part .desc { font-size: 0.95rem; }
}

.legal { display: flex; flex-wrap: wrap; gap: 0.4rem 1.6rem; }
.legal a, .legal-page a { color: var(--petg); }
.legal a:focus-visible, .legal-page a:focus-visible { outline: 3px solid var(--hot); outline-offset: 2px; }

.legal-page {
  max-width: 40rem;
  margin: 0 auto;
  padding: clamp(32px, 8vw, 96px) 16px;
}
.legal-page h1 { font-size: clamp(2.4rem, 7vw, 4rem); }
.legal-page h2 { font-size: 1.5rem; margin-top: 1.6em; }
.back-link { display: inline-block; margin-bottom: 2rem; }