:root {
  --bark: #5c3a22;
  --chip: #e8c96a;
  --chip-2: #f4e2a8;
  --steel: #2f363c;
  --steel-2: #3d474e;
  --paper: #f6f0e4;
  --ink: #1c1610;
  --mute: #6a5c4c;
  --warn: #8a2e12;
  --ok: #3d6a3a;
  --display: "Syne", "Noto Sans SC", sans-serif;
  --sans: "Noto Sans SC", "PingFang SC", sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, Menlo, monospace;
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
section[id] { scroll-margin-top: 70px; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  line-height: 1.7;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
.app-link { color: var(--warn); text-decoration: underline; text-underline-offset: 3px; }
button, input { font-family: inherit; }
code { font-family: var(--mono); background: rgba(92, 58, 34, 0.1); padding: 0 0.3em; }
.chip-skin {
  pointer-events: none;
  position: fixed;
  inset: 0;
  z-index: 20;
  opacity: 0.14;
  background-image: url("images/texture.webp");
  background-size: 380px;
  mix-blend-mode: multiply;
}
.skip { position: absolute; left: -999px; }
.skip:focus { left: 10px; top: 10px; z-index: 70; background: var(--chip); padding: 8px; }
.deck-bar {
  position: sticky;
  top: 0;
  z-index: 40;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 22px;
  background: var(--steel);
  color: var(--chip-2);
  border-bottom: 6px solid var(--chip);
}
.brand { font-family: var(--display); font-weight: 800; letter-spacing: 0.04em; }
.brand small { display: block; font-family: var(--mono); font-size: 10px; letter-spacing: 0.16em; color: var(--chip); font-weight: 400; }
.nav-toggle {
  display: none;
  background: var(--chip);
  color: var(--ink);
  border: 0;
  padding: 6px 12px;
  cursor: pointer;
  font-weight: 700;
}
.nav-links { display: flex; flex-wrap: wrap; gap: 14px; font-size: 14px; }
.nav-links a { color: #c9b896; }
.nav-links a.is-active, .nav-links a:hover { color: var(--chip); }
.nav-links .live { background: var(--chip); color: var(--ink); padding: 5px 12px; font-weight: 700; }

.hero-deck { display: flex; flex-direction: column; }
.stratum { font-family: var(--mono); font-size: 11px; letter-spacing: 0.16em; padding: 8px 22px; }
.stratum.oversize { background: var(--bark); color: var(--chip-2); }
.stratum.fines { background: #c4a060; color: var(--ink); }
.stratum.accept { background: var(--paper); padding: 0; }
.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 0;
  min-height: calc(100vh - 130px);
}
.hero-grid > div { padding: 6vh 36px 6vh 28px; }
.hero-grid figure { margin: 0; position: relative; }
.hero-grid img { width: 100%; height: 100%; object-fit: cover; min-height: 100%; }
.hero-grid figcaption {
  position: absolute; left: 0; right: 0; bottom: 0;
  padding: 12px 14px;
  background: linear-gradient(transparent, rgba(28, 22, 16, 0.88));
  color: var(--chip-2);
  font-size: 13px;
}
.kicker {
  font-family: var(--mono);
  letter-spacing: 0.16em;
  font-size: 11px;
  color: var(--bark);
  margin: 0 0 10px;
}
h1, h2, h3 { font-family: var(--display); margin: 0 0 12px; line-height: 0.98; font-weight: 800; }
h1 { font-size: clamp(40px, 6vw, 78px); }
h2 { font-size: clamp(26px, 3.2vw, 42px); }
h3 { font-size: 22px; line-height: 1.2; }
.lead { max-width: 42em; }
.batch-card {
  margin: 22px 0;
  max-width: 480px;
  padding: 16px 18px;
  background: #fff;
  border-top: 8px solid var(--chip);
  border-left: 1px solid #e0d4bc;
  border-right: 1px solid #e0d4bc;
  border-bottom: 1px solid #e0d4bc;
}
.batch-card.is-thick { border-top-color: var(--warn); }
.tons { font-family: var(--display); font-size: 56px; line-height: 0.9; margin: 0; }
.tons span { font-size: 18px; margin-left: 6px; color: var(--mute); }
#layer-toggle {
  margin-top: 10px;
  background: var(--steel);
  color: var(--chip);
  border: 0;
  padding: 8px 14px;
  cursor: pointer;
  font-weight: 700;
}
.cta { display: flex; gap: 10px; flex-wrap: wrap; }
.btn { display: inline-flex; padding: 10px 18px; border: 2px solid var(--ink); font-weight: 700; }
.btn.fill { background: var(--chip); }
.btn.line { background: transparent; }

.bay { width: min(1120px, calc(100% - 40px)); margin: 0 auto; padding: 80px 0; }
.steel { background: var(--steel); color: var(--chip-2); }
.steel .kicker { color: var(--chip); }
.need-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 0; margin-top: 24px; border: 2px solid var(--bark); }
.need-3 article { padding: 18px; background: #fff; border-right: 1px solid var(--bark); }
.need-3 article:last-child { border-right: 0; background: #f3e6c8; }
.need-3 ul, .io ul { margin: 0; padding-left: 1.1em; }

.layers { list-style: none; margin: 28px 0 0; padding: 0; }
.layers li {
  display: grid;
  grid-template-columns: 64px 1fr 1fr;
  gap: 20px;
  align-items: center;
  padding: 24px 0;
  border-top: 1px solid rgba(232, 201, 106, 0.28);
}
.layers li > span {
  font-family: var(--display);
  font-size: 28px;
  color: var(--chip);
}
.layers img { width: 100%; height: 220px; object-fit: cover; }
.layers figcaption { font-size: 12px; color: #b8aa94; margin-top: 6px; }

.knife-board { margin-top: 20px; padding: 18px; background: #fff; border: 2px solid var(--bark); }
.knife-board label { font-family: var(--mono); font-size: 12px; letter-spacing: 0.12em; display: block; margin-bottom: 8px; }
#knife-life { width: 100%; accent-color: var(--warn); }
.value-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 14px; margin-top: 24px; }
.value-3 article { padding: 18px; background: var(--steel-2); border-top: 4px solid var(--chip); }
#rules ol { background: #fff; padding: 18px 18px 18px 38px; border-left: 8px solid var(--warn); }
.io { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.io > div { background: var(--steel-2); padding: 18px; }
.url { margin-top: 24px; font-family: var(--mono); font-size: 13px; }
footer { padding: 20px 24px 36px; font-size: 13px; color: var(--mute); }

@media (max-width: 900px) {
  .hero-grid, .need-3, .layers li, .value-3, .io { grid-template-columns: 1fr; }
  .need-3 article { border-right: 0; border-bottom: 1px solid var(--bark); }
  .hero-grid img { min-height: 42vh; height: 42vh; }
  .nav-toggle { display: inline-block; }
  .deck-bar { flex-wrap: wrap; }
  .nav-links {
    display: none;
    width: 100%;
    flex-direction: column;
    background: #243036;
    padding: 12px;
  }
  .nav-links.open { display: flex; }
  h1 { font-size: clamp(34px, 11vw, 52px); }
  .chip-skin { opacity: 0.07; }
}