:root {
  --abyss: #070b12;
  --cyan: #00b4d8;
  --orange: #e07a30;
  --ink: #d8eef4;
  --mute: #6a8898;
  --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: 72px; }
body { margin: 0; color: var(--ink); background: var(--abyss); font-family: var(--sans); line-height: 1.7; }
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
.app-link { color: var(--cyan); text-decoration: underline; text-underline-offset: 3px; }
button { font-family: inherit; cursor: pointer; }
code { font-family: var(--mono); color: var(--cyan); }
.sonar { pointer-events: none; position: fixed; inset: 0; z-index: 6; opacity: 0.16; background-image: url("images/texture.webp"); background-size: 360px auto; mix-blend-mode: screen; }
.skip { position: absolute; left: -999px; }
.skip:focus { left: 10px; top: 10px; z-index: 80; background: var(--cyan); color: #041018; padding: 8px; }
.pipebar { position: sticky; top: 0; z-index: 50; display: flex; justify-content: space-between; align-items: center; gap: 12px; padding: 10px 20px; background: rgba(7,11,18,0.94); border-bottom: 1px solid var(--cyan); }
.brand { font-weight: 700; }
.brand small { display: block; font-family: var(--mono); font-size: 10px; color: var(--cyan); letter-spacing: 0.14em; }
.nav-toggle { display: none; background: var(--cyan); color: #041018; border: 0; padding: 8px 12px; }
.pipe-nav { display: flex; gap: 14px; align-items: center; font-size: 13px; }
.pipe-nav a { color: var(--mute); }
.pipe-nav a.is-active, .pipe-nav a:hover { color: var(--cyan); }
.pipe-nav a.live { background: var(--cyan); color: #041018; padding: 7px 12px; }
.abyss { display: grid; grid-template-columns: 1.1fr 0.9fr; }
.abyss figure { margin: 0; }
.abyss img { width: 100%; height: 100%; object-fit: cover; min-height: 400px; }
.copy { padding: 40px 32px; }
.kicker { font-family: var(--mono); letter-spacing: 0.16em; font-size: 11px; color: var(--cyan); margin: 0 0 10px; }
h1, h2, h3 { margin: 0 0 12px; line-height: 1.15; }
h1 { font-size: clamp(28px, 4.2vw, 44px); }
.wall { margin: 16px 0; padding: 14px; background: #101820; border-left: 4px solid var(--cyan); }
.wall input { width: 100%; accent-color: var(--cyan); }
.cta { display: flex; flex-wrap: wrap; gap: 10px; }
.btn { display: inline-flex; padding: 10px 14px; border: 1px solid currentColor; }
.btn.fill { background: var(--cyan); color: #041018; border-color: var(--cyan); }
.w { width: min(1080px, calc(100% - 40px)); margin: 0 auto; padding: 72px 0; }
#need, #wall, #rules { background: #d8e4ea; color: #070b12; }
#need .kicker, #wall .kicker, #rules .kicker { color: #0a6a80; }
.deep { background: #0c1218; }
.tri { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin-top: 20px; }
.tri article, .io > div { background: rgba(0,180,216,0.06); padding: 16px; }
#need .tri article { background: #fff; }
.tri ul, .io ul { margin: 0; padding-left: 1.1em; }
.quiet { color: var(--mute); 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; }
footer { padding: 18px 22px 36px; font-family: var(--mono); font-size: 12px; color: var(--mute); }
@media (max-width: 900px) {
  .abyss, .tri, .io { grid-template-columns: 1fr; }
  .nav-toggle { display: inline-block; }
  .pipe-nav { display: none; position: absolute; right: 10px; top: 52px; flex-direction: column; background: var(--abyss); padding: 10px; border: 1px solid #1a3a48; }
  .pipe-nav.open { display: flex; }
}