:root {
  --crude: #1a120c;
  --crude-2: #2a1c12;
  --ticket: #e8c84a;
  --ticket-2: #f3d96a;
  --seal: #8a9096;
  --ink: #1a120c;
  --paper: #f4ead0;
  --mute: #6a5a40;
  --display: "Noto Serif 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;
  color: var(--paper);
  background: var(--crude);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.7;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
.app-link { color: #b8860b; text-decoration: underline; text-underline-offset: 3px; }
button { font-family: inherit; cursor: pointer; }
.grease {
  pointer-events: none;
  position: fixed;
  inset: 0;
  z-index: 6;
  opacity: 0.14;
  background-image: url("images/texture.webp");
  background-size: 380px auto;
  mix-blend-mode: multiply;
}
.skip { position: absolute; left: -999px; }
.skip:focus { left: 12px; top: 12px; z-index: 80; background: var(--ticket); color: var(--ink); padding: 8px; }
.bar {
  position: sticky;
  top: 0;
  z-index: 40;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 22px;
  background: var(--ticket);
  color: var(--ink);
  border-bottom: 4px dashed var(--crude);
}
.brand { font-family: var(--display); font-weight: 700; }
.brand small {
  display: block;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.14em;
  color: #5a4a20;
  font-weight: 400;
}
.nav-toggle {
  display: none;
  background: var(--crude);
  color: var(--ticket);
  border: 0;
  padding: 6px 12px;
}
.nav-links { display: flex; gap: 14px; font-size: 14px; flex-wrap: wrap; }
.nav-links a { color: #3a2a10; }
.nav-links a.is-active, .nav-links a:hover { color: #000; }
.nav-links .live { background: var(--crude); color: var(--ticket); padding: 6px 12px; }
.hero { display: grid; grid-template-columns: 0.95fr 1.05fr; min-height: calc(100vh - 58px); }
.pad { position: relative; padding: 48px 28px 40px 36px; }
.stub {
  position: absolute;
  right: 18px;
  width: 92px;
  padding: 6px 8px;
  font-size: 12px;
  letter-spacing: 0.12em;
  text-align: center;
  color: var(--ink);
}
.stub.s3 { top: 12px; background: #c4a028; transform: rotate(2deg); }
.stub.s2 { top: 28px; background: #d4b43a; transform: rotate(-1deg); }
.ticket {
  position: relative;
  background: var(--ticket);
  color: var(--ink);
  padding: 28px 24px 24px 32px;
  box-shadow: 8px 12px 0 rgba(0, 0, 0, 0.35);
}
.perf {
  position: absolute;
  left: 10px;
  top: 8px;
  bottom: 8px;
  width: 10px;
  background-image: radial-gradient(circle, var(--crude) 3px, transparent 4px);
  background-size: 10px 14px;
  background-repeat: repeat-y;
}
.kicker {
  font-family: var(--mono);
  letter-spacing: 0.14em;
  font-size: 11px;
  color: #6a5010;
  margin: 0 0 10px;
}
h1, h2, h3 { font-family: var(--display); margin: 0 0 12px; line-height: 1.12; }
h1 { font-size: clamp(32px, 4.6vw, 56px); }
h2 { font-size: clamp(24px, 3vw, 36px); }
.lead { max-width: 40em; color: #4a3a18; }
.seal {
  margin: 18px 0;
  padding: 12px 14px;
  background: #fff6d0;
  border: 1px dashed #8a7018;
  max-width: 34em;
}
.seal.is-ok { border-style: solid; border-color: #2f6b45; }
.n { font-family: var(--mono); font-size: 18px; margin: 0 0 8px; }
#seal-cycle {
  background: var(--crude);
  color: var(--ticket);
  border: 0;
  padding: 8px 12px;
  margin-top: 6px;
}
.cta { display: flex; flex-wrap: wrap; gap: 10px; }
.btn { display: inline-flex; align-items: center; padding: 10px 16px; border: 2px solid var(--crude); font-size: 14px; font-weight: 700; }
.btn.ink { background: var(--crude); color: var(--ticket); }
.btn.line { color: var(--crude); }
.hero figure { margin: 0; position: relative; }
.hero img { width: 100%; height: 100%; object-fit: cover; min-height: 100%; }
.hero figcaption {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 12px;
  background: linear-gradient(transparent, rgba(26, 18, 12, 0.9));
  color: var(--paper);
  font-size: 13px;
}
.w { width: min(1040px, calc(100% - 40px)); margin: 0 auto; padding: 72px 0; }
#need, #seal, #rules { background: var(--paper); color: var(--ink); }
#need .kicker, #seal .kicker, #rules .kicker { color: #8a6810; }
.alt { background: var(--crude-2); }
.tri { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 12px; margin-top: 20px; }
.tri article { background: #fff6d0; color: var(--ink); padding: 16px; }
.alt .tri article { background: #24180e; color: var(--paper); }
.tri ul, .io ul, #rules ol { margin: 0; padding-left: 1.1em; }
.steps { padding-left: 1.2em; max-width: 48em; }
.steps li { margin-bottom: 10px; }
.pair { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-top: 24px; }
.pair img { width: 100%; height: 240px; object-fit: cover; }
.pair figcaption { font-size: 13px; color: var(--mute); margin-top: 8px; }
.alt .pair figcaption { color: #b8a888; }
#rules ol {
  background: #fff6d0;
  padding: 16px 16px 16px 36px;
  border-left: 8px solid var(--ticket);
  max-width: 46em;
}
.io { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.io > div { background: #24180e; padding: 16px; }
.url { margin-top: 18px; font-family: var(--mono); font-size: 13px; }
footer { padding: 20px 24px 40px; color: #8a7a60; font-size: 13px; }
@media (max-width: 900px) {
  .hero, .tri, .pair, .io { grid-template-columns: 1fr; }
  .hero img { min-height: 42vh; height: 42vh; }
  .nav-toggle { display: inline-block; }
  .bar { flex-wrap: wrap; }
  .nav-links {
    display: none;
    width: 100%;
    flex-direction: column;
    background: #f3d96a;
    padding: 12px;
  }
  .nav-links.open { display: flex; }
  .pad { padding: 16px 16px 28px; }
  .stub { display: none; }
}