:root {
  --wood: #1a1410;
  --brass: #c4a35a;
  --lamp: #3a6a48;
  --paper: #f0e6d0;
  --ink: #1a1410;
  --mute: #7a6a58;
  --display: "Cormorant Garamond", "Noto Serif SC", serif;
  --sans: "Noto Sans SC", "PingFang SC", sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, 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(--lamp); text-decoration: underline; text-underline-offset: 3px; }
button { font-family: inherit; cursor: pointer; }
.brass {
  pointer-events: none;
  position: fixed;
  inset: 0;
  z-index: 6;
  opacity: 0.12;
  background-image: url("images/texture.webp");
  background-size: 360px auto;
  mix-blend-mode: multiply;
}
.skip { position: absolute; left: -999px; }
.skip:focus { left: 12px; top: 12px; z-index: 80; background: var(--brass); color: #111; padding: 8px; }
.cage-bar {
  position: sticky;
  top: 0;
  z-index: 40;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  padding: 10px 22px;
  background: rgba(26, 20, 16, 0.94);
  color: var(--paper);
  border-bottom: 3px solid var(--brass);
}
.brand { font-family: var(--display); font-size: 24px; }
.brand small { display: block; font-family: var(--mono); font-size: 10px; color: var(--brass); letter-spacing: 0.14em; }
.nav-toggle { display: none; background: var(--brass); color: #111; border: 0; padding: 7px 12px; }
.cage-links { display: flex; gap: 14px; font-size: 14px; flex-wrap: wrap; align-items: center; }
.cage-links a { color: #c4b49a; }
.cage-links a.is-active, .cage-links a:hover { color: var(--brass); }
.cage-links .live { background: var(--brass); color: #111; padding: 6px 12px; font-weight: 700; }
.counter { display: grid; grid-template-columns: 1.1fr 0.9fr; min-height: 86vh; }
.counter figure { margin: 0; }
.counter img { width: 100%; height: 100%; object-fit: cover; min-height: 440px; }
.copy { padding: 40px 32px; align-self: center; }
.kicker { font-family: var(--mono); letter-spacing: 0.16em; font-size: 11px; color: var(--lamp); margin: 0 0 10px; }
h1, h2, h3 { font-family: var(--display); margin: 0 0 10px; line-height: 1.08; font-weight: 700; }
h1 { font-size: clamp(32px, 4.8vw, 50px); }
.lead { color: var(--mute); }
.stub { margin: 16px 0; padding: 16px; background: #fff; border: 1px solid var(--brass); box-shadow: 6px 6px 0 var(--wood); }
.n { font-family: var(--display); font-size: 40px; margin: 0 0 6px; }
.stub button { margin-top: 8px; background: var(--wood); color: var(--paper); border: 0; padding: 8px 14px; }
.cta { display: flex; flex-wrap: wrap; gap: 10px; }
.btn { display: inline-flex; padding: 10px 16px; border: 1px solid currentColor; }
.btn.fill { background: var(--wood); color: var(--paper); border-color: var(--wood); font-weight: 700; }
.w { width: min(1080px, calc(100% - 40px)); margin: 0 auto; padding: 72px 0; }
.vault { background: var(--wood); color: var(--paper); }
.vault .kicker, .vault .app-link { color: var(--brass); }
.tri { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 12px; margin-top: 16px; }
.tri article { background: #fff; padding: 16px; }
.vault .tri article { background: #2a2218; }
.tri ul, .io ul, #rules ol { margin: 0; padding-left: 1.1em; }
.steps { padding-left: 1.2em; max-width: 46em; }
.pair { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-top: 24px; }
.pair figure { margin: 0; }
.pair img { width: 100%; height: 220px; object-fit: cover; }
.pair figcaption { font-size: 13px; color: var(--mute); margin-top: 8px; }
.vault .pair figcaption { color: #c4b49a; }
.io { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.io > div { background: #2a2218; padding: 16px; }
.url { margin-top: 16px; font-family: var(--mono); font-size: 13px; }
footer { padding: 20px 24px 40px; color: var(--mute); font-size: 13px; }
@media (max-width: 900px) {
  .nav-toggle { display: inline-block; }
  .cage-bar { flex-wrap: wrap; }
  .cage-links { display: none; width: 100%; flex-direction: column; background: var(--wood); padding: 12px; }
  .cage-links.open { display: flex; }
  .counter, .tri, .pair, .io { grid-template-columns: 1fr; }
}