:root {
  --bg: #0d0b14;
  --panel: #16131f;
  --line: #2a2438;
  --text: #ece8f5;
  --muted: #9c93b3;
  --accent: #a78bfa;
  --accent-2: #f472b6;
  --ok: #34d399;
  --busy: #fbbf24;
  --radius: 14px;
  --mono: ui-monospace, "JetBrains Mono", "Cascadia Code", Consolas, monospace;
  color-scheme: dark;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.55 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}
a { color: var(--accent); }
code { font-family: var(--mono); font-size: .9em; color: #d8ccff; }
.wrap { max-width: 1120px; margin: 0 auto; padding: 0 20px; }

/* ---------- hero with a woven kilim motif ---------- */
.hero { position: relative; overflow: hidden; padding: 72px 0 56px; border-bottom: 1px solid var(--line); }
.pattern {
  position: absolute; inset: 0; opacity: .22; pointer-events: none;
  background:
    conic-gradient(from 45deg at 50% 50%, var(--accent) 0 25%, transparent 0 50%, var(--accent-2) 0 75%, transparent 0) 0 0 / 48px 48px,
    repeating-linear-gradient(90deg, transparent 0 22px, #fbbf2433 22px 26px);
  mask-image: linear-gradient(90deg, transparent 20%, #000 75%);
}
.hero .wrap { position: relative; }
.eyebrow { margin: 0; color: var(--accent); font: 600 13px/1 var(--mono); letter-spacing: .14em; text-transform: uppercase; }
h1 {
  margin: 10px 0 6px; font-size: clamp(56px, 11vw, 104px); line-height: 1; letter-spacing: -.04em;
  background: linear-gradient(100deg, #fff 30%, var(--accent) 65%, var(--accent-2));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.lead { max-width: 620px; font-size: 19px; color: #cfc7e3; }
.links { display: flex; gap: 10px; flex-wrap: wrap; }
.links a {
  padding: 7px 14px; border: 1px solid var(--line); border-radius: 999px;
  text-decoration: none; background: #ffffff08; font-size: 14px;
}
.links a:hover { border-color: var(--accent); }

main { display: grid; gap: 22px; padding-top: 28px; padding-bottom: 40px; }
.panel { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 20px 22px; }
h2 { margin: 0 0 8px; font-size: 18px; }
.hint { margin: 0 0 14px; color: var(--muted); font-size: 14px; }
.net-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap; margin-bottom: 10px; }

/* ---------- network controls ---------- */
.controls { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 16px 22px; align-items: end; }
.controls label { display: grid; gap: 6px; font-size: 13px; color: var(--muted); }
.controls output { color: var(--text); font-family: var(--mono); float: right; }
input[type="range"] { accent-color: var(--accent); width: 100%; }
.buttons { display: flex; gap: 8px; }
button {
  font: 600 14px/1 system-ui, sans-serif; padding: 10px 14px; border-radius: 10px; cursor: pointer;
  border: 1px solid var(--accent); background: var(--accent); color: #140f22;
}
button.ghost { background: transparent; color: var(--text); border-color: var(--line); }
button:hover { filter: brightness(1.1); }
.stats { margin: 14px 0 0; color: var(--muted); font-size: 13px; font-family: var(--mono); }
.badge { font: 600 12px/1 var(--mono); padding: 7px 10px; border-radius: 999px; }
.badge.ok { background: #34d39922; color: var(--ok); }
.badge.busy { background: #fbbf2422; color: var(--busy); }

/* ---------- peers ---------- */
.peers { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 16px; }
.peer {
  background: var(--panel); border: 1px solid var(--line); border-top: 3px solid var(--peer);
  border-radius: var(--radius); padding: 14px; transition: opacity .2s, filter .2s;
}
.peer.offline { opacity: .55; filter: grayscale(.6); }
.peer-head { display: flex; align-items: center; gap: 8px; margin-bottom: 10px; }
.dot { width: 10px; height: 10px; border-radius: 50%; background: var(--peer); box-shadow: 0 0 12px var(--peer); }
.peer.offline .dot { background: #555; box-shadow: none; }
.switch { margin-left: auto; font-size: 13px; color: var(--muted); display: flex; gap: 6px; align-items: center; cursor: pointer; }
.switch input { accent-color: var(--peer); }
.editor {
  width: 100%; min-height: 150px; resize: vertical; padding: 12px; border-radius: 10px;
  border: 1px solid var(--line); background: #0b0911; color: var(--text); font: 15px/1.5 var(--mono);
}
.editor:focus { outline: 2px solid var(--peer, var(--accent)); outline-offset: 1px; }
.tab-editor { min-height: 110px; }
.meta { margin: 10px 0 0; display: grid; gap: 4px; font-size: 12px; }
.meta div { display: flex; justify-content: space-between; gap: 10px; }
.meta dt { color: var(--muted); }
.meta dd { margin: 0; font-family: var(--mono); text-align: right; overflow-wrap: anywhere; }

/* ---------- CRDT inspector ---------- */
.tabs { display: flex; gap: 6px; }
.tabs button { background: transparent; color: var(--muted); border-color: var(--line); padding: 7px 12px; }
.tabs button[aria-selected="true"] { color: var(--text); border-color: var(--peer); box-shadow: inset 0 -2px 0 var(--peer); }
.items { display: flex; flex-wrap: wrap; gap: 4px; min-height: 40px; }
.chip {
  display: inline-grid; place-items: center; min-width: 26px; height: 30px; padding: 0 6px;
  border-radius: 7px; font: 14px var(--mono); background: color-mix(in srgb, var(--site) 18%, transparent);
  border: 1px solid color-mix(in srgb, var(--site) 55%, transparent); cursor: default;
}
.chip.dead { opacity: .35; text-decoration: line-through; border-style: dashed; }

/* ---------- explainer ---------- */
.how ol { margin: 0 0 16px; padding-left: 20px; display: grid; gap: 8px; color: #d5cde8; }
pre { margin: 0; padding: 14px 16px; background: #0b0911; border: 1px solid var(--line); border-radius: 10px; overflow-x: auto; }
.foot { padding: 12px 20px 40px; color: var(--muted); font-size: 13px; }

@media (max-width: 600px) {
  .hero { padding: 48px 0 36px; }
  .lead { font-size: 17px; }
  .wrap { padding: 0 16px; }
}