:root {
  --night: #0c1018;
  --ok: #3aaa6a;
  --warn: #e08a28;
  --fuse: #e24a3a;
  --ink: #e8ece8;
  --mute: #8a949c;
  --display: "Archivo Black", "Noto Sans SC", sans-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(--night); 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 { font-family: inherit; cursor: pointer; }
.haze {
  pointer-events: none;
  position: fixed;
  inset: 0;
  z-index: 6;
  opacity: 0.1;
  background-image: url("images/texture.webp");
  background-size: 400px auto;
  mix-blend-mode: overlay;
}
.skip { position: absolute; left: -999px; }
.skip:focus { left: 12px; top: 12px; z-index: 80; background: var(--fuse); color: #fff; padding: 8px; }
.tide-bar {
  position: sticky;
  top: 0;
  z-index: 40;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  padding: 8px 20px;
  background: rgba(12, 16, 24, 0.94);
  border-bottom: 3px solid var(--ok);
}
.brand { font-family: var(--display); letter-spacing: 0.04em; }
.brand small { display: block; font-family: var(--mono); font-size: 10px; color: var(--mute); letter-spacing: 0.14em; font-weight: 400; }
.nav-toggle { display: none; background: var(--fuse); color: #fff; border: 0; padding: 7px 12px; }
.tide-links { display: flex; gap: 14px; font-size: 14px; flex-wrap: wrap; align-items: center; }
.tide-links a { color: var(--mute); }
.tide-links a.is-active, .tide-links a:hover { color: var(--warn); }
.tide-links .live { background: var(--fuse); color: #fff; padding: 6px 12px; font-weight: 700; }
.map { position: relative; min-height: 88vh; }
.map > img { width: 100%; height: 88vh; object-fit: cover; }
.chart {
  position: absolute;
  left: 4vw;
  bottom: 5vh;
  width: min(540px, 92vw);
  background: rgba(12, 16, 24, 0.88);
  padding: 24px;
  border-top: 6px solid var(--ok);
}
.kicker { font-family: var(--mono); letter-spacing: 0.16em; font-size: 11px; color: var(--warn); margin: 0 0 8px; }
h1, h2, h3 { font-family: var(--display); margin: 0 0 10px; line-height: 1.08; font-weight: 400; }
h1 { font-size: clamp(28px, 4.4vw, 44px); }
.lead { color: var(--mute); }
.fuse { margin: 16px 0; padding: 14px; background: #161c28; }
.n { font-family: var(--display); font-size: 36px; margin: 0 0 6px; color: var(--ok); }
.fuse button { margin-top: 8px; background: var(--fuse); color: #fff; border: 0; padding: 8px 14px; font-weight: 700; }
.cta { display: flex; flex-wrap: wrap; gap: 10px; }
.btn { display: inline-flex; padding: 10px 16px; border: 1px solid currentColor; }
.btn.fill { background: var(--fuse); color: #fff; border-color: var(--fuse); font-weight: 700; }
.w { width: min(1080px, calc(100% - 40px)); margin: 0 auto; padding: 72px 0; }
#need, #fuse, #rules { background: #e8ece8; color: #0c1018; }
#need .kicker, #fuse .kicker, #rules .kicker { color: #a03a2a; }
.night { background: #10141c; }
.tri { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 12px; margin-top: 16px; }
.tri article { background: rgba(255,255,255,0.04); padding: 16px; }
#need .tri article { background: #fff; }
.tri ul, .io ul, #rules ol { margin: 0; padding-left: 1.1em; }
.steps { padding-left: 1.2em; max-width: 46em; }
figure { margin: 24px 0 0; }
figure img { width: 100%; max-height: 280px; object-fit: cover; }
figcaption { font-size: 13px; color: var(--mute); margin-top: 8px; }
.io { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.io > div { background: #161c28; 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; }
  .tide-bar { flex-wrap: wrap; }
  .tide-links { display: none; width: 100%; flex-direction: column; background: var(--night); padding: 12px; }
  .tide-links.open { display: flex; }
  .map { min-height: 0; }
  .map > img { height: 42vh; }
  .chart { position: relative; left: 0; bottom: 0; width: auto; margin: -36px 12px 0; }
  .tri, .io { grid-template-columns: 1fr; }
}