:root {
  --customs: #14352c;
  --paper: #f6f1e6;
  --chop: #c23b2e;
  --ink: #1a1c18;
  --mute: #5c6a62;
  --line: rgba(20, 53, 44, 0.14);
  --serif: "Noto Serif SC", "Songti SC", 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: 72px; }
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(--chop); text-decoration: underline; text-underline-offset: 3px; }
button, input { font-family: inherit; cursor: pointer; }
code { font-family: var(--mono); background: rgba(20, 53, 44, 0.08); padding: 0 0.3em; }
.paper-dust {
  pointer-events: none;
  position: fixed;
  inset: 0;
  z-index: 6;
  opacity: 0.18;
  background-image: url("images/texture.webp");
  background-size: 360px;
  mix-blend-mode: multiply;
}
.skip { position: absolute; left: -999px; }
.skip:focus { left: 12px; top: 48px; z-index: 80; background: var(--chop); color: #fff; padding: 8px; }

.hs-lattice {
  position: sticky;
  top: 0;
  z-index: 45;
  display: flex;
  background: var(--customs);
  color: var(--paper);
  font-family: var(--mono);
  letter-spacing: 0.2em;
  font-size: 11px;
}
.hs-lattice span {
  flex: 1;
  text-align: center;
  padding: 6px 0;
  border-right: 1px solid rgba(246, 241, 230, 0.18);
}

.customs-bar {
  position: sticky;
  top: 28px;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 22px;
  background: rgba(246, 241, 230, 0.94);
  border-bottom: 1px solid var(--line);
}
.brand { font-family: var(--serif); font-weight: 700; }
.brand small { display: block; font-family: var(--mono); font-size: 10px; letter-spacing: 0.16em; color: var(--mute); font-weight: 400; }
.nav-toggle { display: none; background: var(--customs); color: var(--paper); border: 0; padding: 8px 12px; }
.nav-links { display: flex; flex-wrap: wrap; gap: 14px; font-size: 14px; }
.nav-links a { color: var(--mute); }
.nav-links a.is-active, .nav-links a:hover { color: var(--customs); }
.nav-links .live { background: var(--chop); color: #fff; padding: 6px 12px; }

.hero {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  min-height: calc(100vh - 70px);
  background: var(--customs);
  color: var(--paper);
}
.hero figure { margin: 0; }
.hero img { width: 100%; height: 100%; object-fit: cover; min-height: 420px; }
.hero-paper { position: relative; padding: 8vh 6vw 7vh; }
.kicker, .vlabel {
  font-family: var(--mono);
  letter-spacing: 0.16em;
  font-size: 11px;
  color: #e8b4a8;
  margin: 0 0 10px;
}
#need .vlabel, #fork .vlabel, #rules .vlabel { color: var(--chop); }
h1, h2, h3 { font-family: var(--serif); margin: 0 0 14px; line-height: 1.12; }
h1 { font-size: clamp(34px, 5.2vw, 60px); padding-right: 128px; }
h2 { font-size: clamp(26px, 3vw, 40px); }
h3 { font-size: 22px; }
.lead, .quiet { max-width: 44em; }
.stamp {
  position: absolute;
  right: 7vw;
  top: 6vh;
  width: 118px;
  height: 118px;
  border: 4px solid var(--chop);
  color: var(--chop);
  border-radius: 8px;
  display: grid;
  place-items: center;
  text-align: center;
  font-family: var(--serif);
  font-size: 15px;
  line-height: 1.35;
  padding: 8px;
  transform: rotate(12deg);
  background: rgba(246, 241, 230, 0.08);
}
.hs-giant { font-size: clamp(22px, 3vw, 34px); margin: 18px 0; }
.hs-giant code { background: transparent; color: #f0d2c8; letter-spacing: 0.06em; }
.cta { display: flex; flex-wrap: wrap; gap: 10px; }
.btn { display: inline-flex; padding: 10px 16px; border: 1px solid currentColor; }
.btn.fill { background: var(--chop); color: #fff; border-color: var(--chop); }
.btn.line { color: var(--paper); }

.wrap { width: min(1100px, calc(100% - 40px)); margin: 0 auto; padding: 76px 0; }
.three { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 14px; }
.three article {
  background: #fffdf8;
  padding: 18px;
  border: 1px solid var(--line);
  clip-path: polygon(0 0, calc(100% - 18px) 0, 100% 18px, 100% 100%, 0 100%);
}
.chop-card { border-color: var(--chop); background: #f8ece8 !important; }
.three ul { margin: 0; padding-left: 1.1em; }
.customs-band { background: var(--customs); color: var(--paper); }
.customs-band .vlabel { color: #e8b4a8; }
.customs-band .quiet { color: rgba(246, 241, 230, 0.75); }
.row { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; align-items: center; margin-bottom: 36px; }
.row.flip { direction: rtl; }
.row.flip > * { direction: ltr; }
.row figure { margin: 0; }
.row img { width: 100%; height: 250px; object-fit: cover; }
.row figcaption { font-size: 13px; color: rgba(246, 241, 230, 0.7); margin-top: 8px; font-style: italic; }
.num { font-family: var(--mono); font-size: 12px; letter-spacing: 0.14em; color: #e8b4a8; display: block; margin-bottom: 8px; }

.fork { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 8px; margin: 20px 0; }
.fork button {
  text-align: left;
  background: #fffdf8;
  border: 1px solid var(--line);
  padding: 12px;
  font-family: var(--mono);
  font-size: 14px;
}
.fork button small { display: block; font-size: 11px; color: var(--mute); margin-top: 4px; }
.fork button.on { border-color: var(--chop); box-shadow: inset 4px 0 0 var(--chop); }
.fork-read { background: #fffdf8; border: 1px solid var(--line); padding: 18px; }
#fork-path { font-family: var(--mono); font-size: 13px; color: var(--customs); }
.four { display: grid; grid-template-columns: 1fr 1fr 1fr 1fr; gap: 12px; }
.four article { background: rgba(246, 241, 230, 0.08); padding: 16px; border-top: 4px solid var(--chop); }
ol { padding-left: 1.2em; }
table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 10px 8px; border-bottom: 1px solid rgba(246, 241, 230, 0.18); }
th { font-family: var(--mono); font-size: 12px; }
.foot-live { margin-top: 22px; }

@media (max-width: 900px) {
  .nav-toggle { display: inline-flex; }
  .customs-bar { flex-wrap: wrap; }
  .nav-links { display: none; width: 100%; }
  .nav-links.open { display: flex; }
  .hero, .three, .row, .fork, .four { grid-template-columns: 1fr; }
  .hero img { min-height: 240px; height: 240px; order: -1; }
  .hero { display: flex; flex-direction: column; }
  .row.flip { direction: ltr; }
  .stamp { position: static; transform: rotate(-6deg); margin: 0 0 12px auto; }
  h1 { font-size: clamp(28px, 10vw, 44px); padding-right: 0; }
}