/* ARCL · one visual world: a ray-traced black hole behind the page, instruments floating in front of it.
   Single deliberate dark theme (deep space); every colour is painted explicitly. */
:root {
  --void: #030409;
  --ink: #ECEEF5;
  --ink-2: #A6ADBF;
  --ink-3: #737B91;
  --ink-4: #4A5166;
  --line: rgba(168, 184, 228, .13);
  --line-2: rgba(168, 184, 228, .24);
  --glass: rgba(5, 7, 13, .80);
  --glass-hi: rgba(8, 10, 18, .92);
  --gold: #F2B25C;
  --gold-hi: #FFD9A3;
  --gold-lo: rgba(242, 178, 92, .14);
  --blue: #7FA6FF;
  --blue-hi: #C7D7FF;
  --blue-lo: rgba(127, 166, 255, .14);
  --hot: #FFF1DC;
  --ok: #55CC91;
  --ok-lo: rgba(85, 204, 145, .13);
  --bad: #F2735F;
  --bad-lo: rgba(242, 115, 95, .13);
  --mono: "Martian Mono", ui-monospace, "Cascadia Mono", Consolas, monospace;
  --sans: "Noto Sans SC", system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;
  --gut: clamp(16px, 3.2vw, 40px);
  --r: 3px;
}

*, *::before, *::after { box-sizing: border-box; }
html { background: var(--void); color-scheme: dark; scroll-behavior: smooth; scroll-padding-top: 76px; }
body {
  margin: 0; min-height: 100vh; background: var(--void); color: var(--ink);
  font: 400 14px/1.65 var(--sans); -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}
img, svg, canvas { display: block; max-width: 100%; }
button, input, output { font: inherit; color: inherit; }
a { color: inherit; text-decoration: none; }
:focus-visible { outline: 2px solid var(--gold-hi); outline-offset: 2px; }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; }
[hidden] { display: none !important; }

.universe {
  position: fixed; left: 0; top: 0; width: 100vw; height: 100vh; height: 100lvh; z-index: 0;
  background: radial-gradient(60% 40% at 50% 42%, #1c130a 0%, #07080e 55%, var(--void) 100%);
}
.no-gl .universe { background: url("arcl-logo.png") center 30% / min(80vw, 560px) no-repeat, var(--void); }

/* ── header ─────────────────────────────────────────── */
.top {
  position: fixed; inset: 0 0 auto; z-index: 30; height: 60px;
  display: flex; align-items: center; gap: 22px; padding-inline: var(--gut);
  background: linear-gradient(180deg, rgba(3, 4, 9, .94), rgba(3, 4, 9, .6) 70%, rgba(3, 4, 9, 0));
}
.brand { display: flex; align-items: center; gap: 10px; font: 700 15px/1 var(--mono); font-stretch: 112.5%; letter-spacing: .14em; }
.mark { width: 30px; height: 30px; }
.ca { display: flex; align-items: center; gap: 8px; font: 400 11px/1 var(--mono); letter-spacing: .03em; color: var(--ink-3); }
.ca-k { color: var(--ink-4); }
.ca code { font: inherit; color: var(--ink-2); }
.ca-copy {
  background: none; border: 1px solid var(--line); border-radius: var(--r); padding: 4px 7px;
  font: 400 10px/1 var(--mono); color: var(--ink-3); cursor: pointer;
}
.ca-copy:hover { color: var(--ink); border-color: var(--line-2); }
.ext { display: flex; gap: 18px; font: 400 11px/1 var(--mono); letter-spacing: .06em; color: var(--ink-3); }
.ext a:hover { color: var(--ink); }
.sp { flex: 1; }
.pages { display: flex; gap: 22px; font: 500 13px/1 var(--sans); color: var(--ink-2); }
.pages a:hover { color: var(--ink); }
.wallet-btn {
  display: flex; align-items: center; gap: 8px; height: 34px; padding: 0 14px;
  background: rgba(255, 241, 220, .06); border: 1px solid var(--line-2); border-radius: var(--r);
  font: 500 12px/1 var(--mono); letter-spacing: .03em; cursor: pointer; white-space: nowrap;
}
.wallet-btn:hover { background: rgba(255, 241, 220, .11); }
.wdot { width: 6px; height: 6px; border-radius: 50%; background: var(--ink-4); }
.wallet-btn.on .wdot { background: var(--ok); }

.chapter {
  position: fixed; left: var(--gut); top: 68px; z-index: 25; margin: 0; padding: 6px 9px 5px;
  border: 1px solid var(--line); background: rgba(3, 4, 9, .62);
  font: 400 10.5px/1 var(--mono); letter-spacing: .12em; color: var(--ink-2);
}
.chapter #chapNo { color: var(--gold); }

/* ── shared pieces ──────────────────────────────────── */
main { position: relative; z-index: 1; overflow-x: clip; }
.panel {
  position: relative; background: var(--glass); border: 1px solid var(--line); border-radius: var(--r);
  box-shadow: 0 30px 80px -40px rgba(0, 0, 0, .95);
}
.panel-h {
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
  padding: 12px 16px; border-bottom: 1px solid var(--line); font: 500 12.5px/1.2 var(--sans); color: var(--ink-2);
}
.pill {
  padding: 4px 7px 3px; border-radius: 2px; border: 1px solid var(--line-2);
  font: 500 10.5px/1 var(--mono); letter-spacing: .05em; color: var(--ink-2); white-space: nowrap;
}
.pill.ok { color: var(--ok); border-color: rgba(85, 204, 145, .4); background: var(--ok-lo); }
.pill.bad { color: var(--bad); border-color: rgba(242, 115, 95, .4); background: var(--bad-lo); }
.pill.run { color: var(--gold-hi); border-color: rgba(242, 178, 92, .4); background: var(--gold-lo); }
.kv { margin: 0; display: grid; gap: 7px; }
.kv div { display: flex; justify-content: space-between; align-items: baseline; gap: 12px; }
.kv dt { font: 400 12px/1.3 var(--sans); color: var(--ink-3); }
.kv dd { margin: 0; font: 500 12px/1.3 var(--mono); font-variant-numeric: tabular-nums; color: var(--ink-2); text-align: right; }
.fine { margin: 0; font: 400 12px/1.75 var(--sans); color: var(--ink-3); }
.btn {
  display: inline-flex; align-items: center; justify-content: center; height: 40px; padding: 0 18px;
  border: 1px solid transparent; border-radius: var(--r); font: 600 13px/1 var(--sans); letter-spacing: .04em;
  cursor: pointer; white-space: nowrap; transition: filter .15s, background-color .15s, border-color .15s;
}
.btn-hot { background: linear-gradient(90deg, #F2B25C, #FFEBCF 52%, #A9C2FF); color: #06070B; }
.btn-hot:hover { filter: brightness(1.08); }
.btn-hot:disabled { background: rgba(255, 255, 255, .06); color: var(--ink-3); border-color: var(--line); cursor: not-allowed; filter: none; }
.btn-line { background: transparent; border-color: var(--line-2); color: var(--ink); }
.btn-line:hover { background: rgba(255, 255, 255, .05); }
.btn-block { width: 100%; height: 48px; font-size: 15px; }

/* ── 01 horizon ─────────────────────────────────────── */
.scene { position: relative; height: max(700px, min(100svh, 1000px)); overflow: hidden; cursor: grab; touch-action: pan-y; }
.scene.is-dragging { cursor: grabbing; }
.hole-slot { position: absolute; left: 0; right: 0; top: 60px; bottom: 300px; pointer-events: none; }
.leaders { position: absolute; inset: 0; width: 100%; height: 100%; pointer-events: none; overflow: visible; transition: opacity .2s; }
.ld { fill: none; stroke-width: 1; opacity: .7; }
.ld-gold { stroke: var(--gold); }
.ld-blue { stroke: var(--blue); }
.an { fill: var(--void); stroke-width: 1.5; }
.an-gold { stroke: var(--gold); }
.an-blue { stroke: var(--blue); }

.huds { position: absolute; inset: 0; pointer-events: none; }
.hud { position: absolute; left: 0; top: 0; width: 272px; padding: 14px 16px 13px; pointer-events: auto; cursor: default; visibility: hidden; }
.hud.placed { visibility: visible; }
.hud::before, .hud::after { content: ""; position: absolute; width: 10px; height: 10px; border: 1px solid var(--accent); pointer-events: none; }
.hud::before { left: -1px; top: -1px; border-right: 0; border-bottom: 0; }
.hud::after { right: -1px; bottom: -1px; border-left: 0; border-top: 0; }
.hud-bsc { --accent: var(--gold); }
.hud-arc { --accent: var(--blue); }
.hud-h { display: flex; align-items: center; gap: 8px; margin-bottom: 12px; font: 400 10.5px/1 var(--mono); letter-spacing: .04em; color: var(--ink-3); }
.tag { padding: 4px 6px 3px; border-radius: 2px; font: 700 10px/1 var(--mono); letter-spacing: .1em; color: #07080C; }
.tag-gold { background: var(--gold); }
.tag-blue { background: var(--blue); }
.hud-sub { min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.state { margin-left: auto; padding: 4px 6px 3px; border: 1px solid var(--line-2); border-radius: 2px; color: var(--ink-2); white-space: nowrap; font-family: var(--sans); font-size: 11px; }
.hud-k { margin: 0; font: 400 11.5px/1 var(--sans); color: var(--ink-3); }
.hud-big { margin: 7px 0 13px; font: 500 26px/1.1 var(--mono); font-stretch: 87.5%; letter-spacing: -.01em; font-variant-numeric: tabular-nums; }
.hud-big sub { margin-inline: .06em; font-size: .52em; line-height: 0; vertical-align: -.12em; color: var(--ink-2); }

.sign {
  position: absolute; left: 0; right: 0; bottom: 76px; margin-inline: auto;
  width: min(940px, calc(100% - 2 * var(--gut))); display: grid; grid-template-columns: 1.2fr 1fr;
  background: var(--glass-hi); cursor: default;
}
.sign::before { content: ""; position: absolute; inset: 4px; border: 1px solid rgba(242, 178, 92, .15); pointer-events: none; }
.sign-main { padding: 22px 26px 18px; border-right: 1px solid var(--line); }
.sign-title { margin: 0 0 14px; padding-bottom: 14px; border-bottom: 1px solid var(--line); display: flex; align-items: baseline; flex-wrap: wrap; gap: 6px 16px; }
.sign-wm { font: 700 30px/1 var(--mono); font-stretch: 112.5%; letter-spacing: .12em; color: var(--hot); }
.sign-cn {
  font: 900 24px/1.1 var(--sans); letter-spacing: .08em;
  background: linear-gradient(90deg, var(--gold-hi), var(--hot) 50%, var(--blue-hi)); -webkit-background-clip: text; background-clip: text; color: transparent;
}
.sign-rows { margin: 0; display: grid; gap: 8px; }
.sign-rows div { display: grid; grid-template-columns: 40px 1fr; gap: 10px; align-items: baseline; }
.sign-rows dt { font: 400 12px/1.4 var(--sans); color: var(--ink-3); }
.sign-rows dd { margin: 0; font: 500 11.5px/1.45 var(--mono); letter-spacing: .02em; color: var(--ink-2); }
#signStatus { font-family: var(--sans); font-size: 13px; color: var(--gold-hi); }
.open-meter { margin-top: 14px; padding-top: 12px; border-top: 1px solid var(--line); }
.om-h { display: flex; justify-content: space-between; align-items: baseline; gap: 12px; margin-bottom: 8px; font: 400 12px/1.3 var(--sans); color: var(--ink-3); }
.om-h b { font: 500 13px/1 var(--mono); font-variant-numeric: tabular-nums; color: var(--gold-hi); white-space: nowrap; }
.bar.om-bar { height: 6px; }
.bar.om-bar > i { background: linear-gradient(90deg, var(--gold), var(--hot) 55%, var(--blue)); }
.sign-foot { margin: 14px 0 0; padding-top: 12px; border-top: 1px solid var(--line); font: 500 12px/1 var(--sans); letter-spacing: .3em; color: var(--ink-3); }
.sign-side { padding: 22px 24px 18px; display: flex; flex-direction: column; gap: 10px; }
.prem-h { display: flex; justify-content: space-between; align-items: baseline; gap: 12px; }
.prem-h span { font: 400 12px/1 var(--sans); color: var(--ink-3); }
.prem-h b { font: 500 30px/1 var(--mono); font-stretch: 87.5%; font-variant-numeric: tabular-nums; }
.band { position: relative; height: 10px; margin-top: 8px; background: rgba(255, 255, 255, .05); }
.band-zone { position: absolute; top: 0; bottom: 0; left: 33.75%; right: 33.75%; background: linear-gradient(90deg, rgba(242, 178, 92, .38), rgba(255, 241, 220, .22) 62%, rgba(127, 166, 255, .38)); }
.band-zero { position: absolute; left: 50%; top: -3px; bottom: -3px; width: 1px; background: var(--ink-3); }
.band-mark { position: absolute; top: -5px; bottom: -5px; left: 50%; width: 3px; margin-left: -1px; background: var(--hot); box-shadow: 0 0 0 2px var(--void); transition: left .6s; }
.band-scale { display: flex; justify-content: space-between; font: 400 10px/1 var(--mono); color: var(--ink-4); }
.band-cap { margin: 0; font: 400 12px/1.4 var(--sans); color: var(--ink-3); }
.band-cap b { font: 500 11.5px/1 var(--mono); color: var(--ink-2); }
.sign-cta { display: flex; gap: 8px; margin-top: auto; padding-top: 6px; }
.sign-cta .btn { flex: 1; }

/* ── sections ───────────────────────────────────────── */
.sec { position: relative; max-width: 1260px; margin-inline: auto; padding: 136px var(--gut) 24px; }
.sec-head { position: relative; max-width: 660px; margin-bottom: 36px; }
.sec-head::before {
  content: ""; position: absolute; inset: -60px -120px -40px -80px; z-index: -1; pointer-events: none;
  background: radial-gradient(closest-side, rgba(3, 4, 9, .78), rgba(3, 4, 9, 0));
}
.kicker { margin: 0 0 14px; font: 400 11px/1 var(--mono); letter-spacing: .14em; color: var(--gold); }
.sec h2 { margin: 0 0 14px; font: 900 clamp(28px, 4.2vw, 50px)/1.15 var(--sans); letter-spacing: -.005em; text-wrap: balance; }
.lead { margin: 0; max-width: 36em; font-size: 15px; line-height: 1.85; color: var(--ink-2); }

/* ── 02 bridge ──────────────────────────────────────── */
.bridge-grid { display: grid; grid-template-columns: minmax(0, 480px) minmax(0, 1fr); gap: 20px; align-items: start; }
.console { padding: 16px; background: var(--glass-hi); }
.console-top { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 10px 12px; margin-bottom: 14px; }
.seg { display: inline-flex; gap: 3px; padding: 3px; border: 1px solid var(--line); border-radius: var(--r); background: rgba(0, 0, 0, .3); }
.seg button { height: 30px; padding: 0 12px; border: 0; border-radius: 2px; background: transparent; font: 500 11.5px/1 var(--mono); letter-spacing: .05em; color: var(--ink-3); cursor: pointer; }
.seg button:hover { color: var(--ink-2); }
.seg button[aria-pressed="true"] { background: rgba(255, 255, 255, .07); color: var(--ink); }
#dirToArc[aria-pressed="true"] { box-shadow: inset 0 -2px 0 var(--gold); }
#dirToBsc[aria-pressed="true"] { box-shadow: inset 0 -2px 0 var(--blue); }
.console-wallet { font: 400 11px/1 var(--mono); color: var(--ink-3); white-space: nowrap; }
.console-wallet.on { color: var(--ink-2); }
.leg { padding: 14px; border: 1px solid var(--line); border-radius: var(--r); background: rgba(255, 255, 255, .02); }
.leg:focus-within { border-color: var(--line-2); }
.leg-h, .leg-f { display: flex; align-items: center; gap: 8px; color: var(--ink-3); }
.leg-h { font: 400 12px/1 var(--sans); }
.leg-f { justify-content: space-between; font: 400 11.5px/1 var(--mono); }
.chain { display: inline-flex; align-items: center; gap: 6px; font: 600 12px/1 var(--mono); letter-spacing: .06em; color: var(--ink); }
.chain::before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: var(--gold); }
.chain[data-c="arc"]::before { background: var(--blue); }
.bal { margin-left: auto; background: none; border: 0; padding: 0; font: 400 11.5px/1 var(--mono); color: var(--ink-3); }
button.bal { cursor: pointer; }
button.bal:hover { color: var(--ink); }
.amt { display: flex; align-items: center; gap: 10px; margin: 12px 0; }
.amt input, .amt output {
  flex: 1; min-width: 0; background: transparent; border: 0; outline: 0; padding: 0;
  font: 500 32px/1.15 var(--mono); font-stretch: 87.5%; font-variant-numeric: tabular-nums; color: var(--ink);
}
.amt input::placeholder { color: var(--ink-4); }
.amt output { color: var(--ink-2); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.tok { display: inline-flex; align-items: center; gap: 7px; height: 30px; padding: 0 11px 0 8px; border: 1px solid var(--line-2); border-radius: 999px; font: 600 12px/1 var(--mono); letter-spacing: .06em; flex: none; }
.tok::before { content: ""; width: 14px; height: 14px; border-radius: 50%; background: radial-gradient(circle, #000 40%, var(--hot) 45%, var(--gold) 60%, rgba(127, 166, 255, .9) 66%, transparent 70%); }
.quick { display: flex; gap: 4px; }
.quick button { height: 22px; padding: 0 7px; background: transparent; border: 1px solid var(--line); border-radius: 2px; font: 400 10.5px/1 var(--mono); color: var(--ink-3); cursor: pointer; }
.quick button:hover { color: var(--ink); border-color: var(--line-2); }
.horizon-sep { position: relative; height: 20px; display: grid; place-items: center; }
.horizon-sep::before {
  content: ""; position: absolute; left: 14px; right: 14px; top: 50%; height: 1px; opacity: .55;
  background: linear-gradient(90deg, transparent, var(--gold) 28%, var(--hot) 50%, var(--blue) 72%, transparent);
}
.flip { position: relative; width: 36px; height: 36px; border-radius: 50%; background: #000; border: 1px solid rgba(255, 230, 196, .55); display: grid; place-items: center; cursor: pointer; box-shadow: 0 0 0 5px var(--glass-hi); transition: border-color .15s, transform .3s; }
.flip svg { width: 16px; height: 16px; fill: none; stroke: var(--hot); stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; }
.flip:hover { border-color: var(--hot); }
.opts { display: grid; gap: 9px; margin: 14px 2px; }
.check { display: flex; align-items: center; gap: 9px; font: 400 13px/1.4 var(--sans); color: var(--ink-2); cursor: pointer; }
.check input { appearance: none; -webkit-appearance: none; flex: none; width: 16px; height: 16px; margin: 0; border: 1px solid var(--line-2); border-radius: 2px; background: transparent; display: grid; place-items: center; cursor: pointer; }
.check input::after { content: ""; width: 8px; height: 8px; background: var(--gold); transform: scale(0); transition: transform .12s; }
.check input:checked { border-color: var(--gold); }
.check input:checked::after { transform: scale(1); }
.field input { width: 100%; height: 40px; padding: 0 12px; background: rgba(0, 0, 0, .35); border: 1px solid var(--line-2); border-radius: var(--r); font: 400 12.5px/1 var(--mono); color: var(--ink); }
.field input:focus { border-color: var(--gold); outline: 0; }
.field input.bad { border-color: var(--bad); }
.quote { margin: 0 0 14px; padding: 11px 12px; display: grid; gap: 8px; border: 1px dashed var(--line-2); border-radius: var(--r); }
.quote div { display: flex; justify-content: space-between; gap: 12px; }
.quote dt { font: 400 12px/1.3 var(--sans); color: var(--ink-3); }
.quote dd { margin: 0; font: 500 12px/1.3 var(--mono); font-variant-numeric: tabular-nums; color: var(--ink-2); text-align: right; }
.msg { min-height: 1.5em; margin: 10px 2px 0; font: 400 12.5px/1.5 var(--sans); color: var(--ink-3); }
.msg.bad { color: var(--bad); }
.msg.ok { color: var(--ok); }

.bridge-side { display: grid; gap: 16px; }
.steps { list-style: none; margin: 0; padding: 6px 16px 10px; }
.steps li { position: relative; display: grid; grid-template-columns: 18px minmax(0, 1fr) auto; gap: 12px; align-items: start; padding: 10px 0; }
.steps li:not(:last-child)::after { content: ""; position: absolute; left: 8.5px; top: 30px; bottom: -8px; width: 1px; background: var(--line-2); }
.steps li.done:not(:last-child)::after { background: rgba(85, 204, 145, .5); }
.sdot { position: relative; display: block; width: 18px; height: 18px; margin-top: 1px; border-radius: 50%; border: 1px solid var(--ink-4); }
.steps li.run .sdot { border-color: var(--gold); box-shadow: 0 0 0 4px var(--gold-lo); }
.steps li.run .sdot::after { content: ""; position: absolute; inset: 4px; border-radius: 50%; background: var(--gold); animation: blink 1.1s ease-in-out infinite; }
.steps li.done .sdot { border-color: var(--ok); background: var(--ok); }
.steps li.done .sdot::after { content: ""; position: absolute; left: 5.5px; top: 2.5px; width: 5px; height: 9px; border: solid #05130C; border-width: 0 1.7px 1.7px 0; transform: rotate(45deg); }
.steps li.fail .sdot { border-color: var(--bad); background: var(--bad-lo); }
.steps b { display: block; font: 500 13px/1.35 var(--sans); color: var(--ink-2); }
.steps li.run b, .steps li.done b { color: var(--ink); }
.steps span { display: block; margin-top: 3px; font: 400 11.5px/1.45 var(--mono); color: var(--ink-3); overflow-wrap: anywhere; }
.slink { padding-top: 3px; font: 400 11px/1 var(--mono); color: var(--gold-hi); white-space: nowrap; }
.slink:hover { text-decoration: underline; }
@keyframes blink { 50% { opacity: .3; } }

.gates ul { list-style: none; margin: 0; padding: 12px 16px 14px; display: grid; gap: 10px; }
.gates li { display: flex; align-items: center; gap: 10px; font: 400 13px/1.4 var(--sans); color: var(--ink-3); }
.gdot { position: relative; flex: none; width: 14px; height: 14px; border-radius: 50%; border: 1px solid var(--ink-4); }
.gates li.ok { color: var(--ink); }
.gates li.ok .gdot { border-color: var(--ok); background: var(--ok); }
.gates li.ok .gdot::after { content: ""; position: absolute; left: 4px; top: 1.5px; width: 4px; height: 7px; border: solid #05130C; border-width: 0 1.5px 1.5px 0; transform: rotate(45deg); }
.reserve .kv { padding: 13px 16px 4px; }
.kv-wide dt { font-size: 12.5px; }
.kv-wide dd { font-size: 13px; color: var(--ink); }
.lims { display: grid; gap: 12px; padding: 10px 16px 16px; }
.lim-h { display: flex; justify-content: space-between; gap: 10px; margin-bottom: 7px; font: 400 12px/1.2 var(--sans); color: var(--ink-3); }
.lim-h b { font: 500 12px/1.2 var(--mono); color: var(--ink-2); }
.bar { display: block; height: 4px; background: rgba(255, 255, 255, .06); border-radius: 2px; overflow: hidden; }
.bar > i { display: block; width: 0; height: 100%; background: var(--gold); transition: width .6s; }
.bar-blue > i { background: var(--blue); }

.history { margin-top: 20px; }
.note { font: 400 11px/1.2 var(--mono); color: var(--ink-3); }
.hist { list-style: none; margin: 0; padding: 2px 0; }
.hist li { display: grid; grid-template-columns: 116px minmax(0, 1fr) auto auto; gap: 16px; align-items: center; padding: 11px 16px; border-top: 1px solid var(--line); font: 400 12px/1.3 var(--mono); color: var(--ink-2); }
.hist li:first-child { border-top: 0; }
.hist .d-gold { color: var(--gold); }
.hist .d-blue { color: var(--blue); }
.hist a { color: var(--gold-hi); }
.hist li.empty { display: block; font: 400 13px/1.6 var(--sans); color: var(--ink-3); }

/* ── 03 parity ──────────────────────────────────────── */
.parity-grid { display: grid; grid-template-columns: minmax(0, 1.55fr) minmax(0, 1fr); gap: 20px; align-items: start; }
.chart-panel { background: var(--glass-hi); }
.chart-panel .fine { padding: 0 16px 14px; }
.legend { display: flex; align-items: center; gap: 6px; font: 400 11px/1 var(--mono); color: var(--ink-3); }
.lg { display: inline-block; width: 14px; height: 2px; margin-left: 8px; }
.lg-gold { background: var(--gold); }
.lg-blue { background: var(--blue); }
.chart-box { position: relative; height: 340px; margin: 12px 8px 10px; }
.chart-box canvas { width: 100%; height: 100%; }
.chart-empty { position: absolute; inset: 0; display: grid; place-items: center; margin: 0; font: 400 13px/1 var(--sans); color: var(--ink-3); }
.tip { position: absolute; left: 0; top: 0; pointer-events: none; padding: 8px 10px; background: var(--glass-hi); border: 1px solid var(--line-2); border-radius: var(--r); font: 400 11px/1.65 var(--mono); color: var(--ink-2); white-space: nowrap; }
.arb { display: grid; gap: 14px; }
.arb-card { padding: 16px 18px; }
.arb-k { margin: 0 0 8px; font: 700 15px/1.3 var(--sans); }
.arb-route { margin: 0 0 4px; font: 500 12px/1.5 var(--mono); color: var(--ink-2); }
.arb-cost { margin: 0 0 12px; font: 400 12px/1.5 var(--sans); color: var(--ink-3); }
.arb-v { margin: 0; display: flex; justify-content: space-between; align-items: baseline; padding-top: 10px; border-top: 1px solid var(--line); }
.arb-v span { font: 400 12px/1 var(--sans); color: var(--ink-3); }
.arb-v b { font: 500 24px/1 var(--mono); font-stretch: 87.5%; }
.up { color: var(--ok); }
.dn { color: var(--bad); }

/* ── 04 loop ────────────────────────────────────────── */
.orbit {
  position: relative; display: grid; grid-template-columns: minmax(0, 1fr) minmax(220px, 30%) minmax(0, 1fr);
  grid-template-rows: auto auto; row-gap: 170px; align-items: center; padding-block: 24px;
}
.orbit-ring { position: absolute; inset: 0; width: 100%; height: 100%; pointer-events: none; overflow: visible; }
.ring-base { fill: none; stroke: var(--line-2); stroke-width: 1; vector-effect: non-scaling-stroke; }
.ring-flow { fill: none; stroke: var(--gold); stroke-width: 2; stroke-dasharray: 2 18; stroke-linecap: round; vector-effect: non-scaling-stroke; animation: flow 4s linear infinite; }
@keyframes flow { to { stroke-dashoffset: -200; } }
.node { width: 100%; max-width: 380px; padding: 16px 18px; background: var(--glass-hi); }
.n1 { grid-column: 1; grid-row: 1; justify-self: end; }
.n2 { grid-column: 3; grid-row: 1; justify-self: start; }
.n3 { grid-column: 3; grid-row: 2; justify-self: start; }
.n4 { grid-column: 1; grid-row: 2; justify-self: end; }
.node-no { display: inline-grid; place-items: center; width: 24px; height: 24px; margin-bottom: 10px; border: 1px solid var(--gold); border-radius: 50%; font: 600 11px/1 var(--mono); color: var(--gold); }
.n3 .node-no, .n4 .node-no { border-color: var(--blue); color: var(--blue); }
.node h3 { margin: 0 0 6px; font: 700 17px/1.3 var(--sans); }
.node p { margin: 0; font: 400 13px/1.75 var(--sans); color: var(--ink-2); }
.node .node-stat { display: flex; justify-content: space-between; align-items: baseline; gap: 12px; margin-top: 12px; padding-top: 10px; border-top: 1px solid var(--line); }
.node-stat span { font-size: 12px; color: var(--ink-3); }
.node-stat b { font: 500 13px/1 var(--mono); font-variant-numeric: tabular-nums; color: var(--ink); }
.facts { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; margin-top: 56px; }
.fact { padding: 18px; }
.fact h3 { margin: 0 0 8px; font: 700 15px/1.3 var(--sans); }
.fact p { margin: 0; font: 400 13px/1.8 var(--sans); color: var(--ink-2); }

/* ── 05 contracts ───────────────────────────────────── */
.tbl-wrap { overflow-x: auto; background: var(--glass-hi); }
.tbl { width: 100%; min-width: 760px; border-collapse: collapse; }
.tbl th { padding: 12px 16px; text-align: left; font: 400 11px/1 var(--mono); letter-spacing: .08em; color: var(--ink-3); border-bottom: 1px solid var(--line); }
.tbl td { padding: 13px 16px; border-bottom: 1px solid var(--line); font: 400 13px/1.45 var(--sans); color: var(--ink-2); vertical-align: middle; }
.tbl tr:last-child td { border-bottom: 0; }
.tbl td:nth-child(2) { color: var(--ink); font-weight: 500; }
.tbl .tag { display: inline-block; }
.addr { font: 400 12px/1.3 var(--mono); color: var(--ink); white-space: nowrap; }
.addr a { color: var(--gold-hi); }
.addr a:hover { text-decoration: underline; }
.muted { font: 400 12px/1.3 var(--sans); color: var(--ink-4); }
.refs { margin: 16px 0 0; font: 400 12px/1.9 var(--sans); color: var(--ink-3); }
.refs code { font: 400 11.5px/1 var(--mono); color: var(--ink-2); }
.legal { margin: 28px 0 0; padding-bottom: 110px; font: 400 12px/1.7 var(--sans); color: var(--ink-4); }

/* ── dock, dialog, toast ────────────────────────────── */
.dock {
  position: fixed; inset: auto 0 0; z-index: 30; height: 42px; display: flex; align-items: center; gap: 18px;
  padding-inline: var(--gut); background: linear-gradient(0deg, rgba(3, 4, 9, .95), rgba(3, 4, 9, .6) 70%, rgba(3, 4, 9, 0));
  font: 400 11px/1 var(--mono); letter-spacing: .03em; color: var(--ink-3); white-space: nowrap;
}
.live { display: flex; align-items: center; gap: 7px; }
.live i { width: 6px; height: 6px; border-radius: 50%; background: var(--ink-4); }
.live.on i { background: var(--ok); box-shadow: 0 0 0 3px var(--ok-lo); }
.live.bad i { background: var(--bad); }
.live.tick i { animation: ping .9s ease-out; }
@keyframes ping { 0% { box-shadow: 0 0 0 0 rgba(85, 204, 145, .75); } 100% { box-shadow: 0 0 0 9px rgba(85, 204, 145, 0); } }
@media (prefers-reduced-motion: reduce) { .live.tick i { animation: none; } }
.live b { font-weight: 600; letter-spacing: .1em; color: var(--ink-2); }
.dock button { background: none; border: 0; padding: 6px 0; font: inherit; letter-spacing: .06em; color: var(--ink-2); cursor: pointer; }
.dock button:hover { color: var(--ink); }
.dock-hint { font-family: var(--sans); color: var(--ink-4); }

.dlg { width: min(380px, calc(100vw - 32px)); padding: 0; color: var(--ink); background: var(--glass-hi); }
.dlg::backdrop { background: rgba(3, 4, 9, .66); }
.x { background: none; border: 0; padding: 0 2px; font-size: 20px; line-height: 1; color: var(--ink-3); cursor: pointer; }
.x:hover { color: var(--ink); }
.wallets { list-style: none; margin: 0; padding: 8px; }
.wallets button { width: 100%; display: flex; align-items: center; gap: 12px; padding: 10px; background: none; border: 1px solid transparent; border-radius: var(--r); font: 500 14px/1 var(--sans); text-align: left; cursor: pointer; }
.wallets button:hover { background: rgba(255, 255, 255, .05); border-color: var(--line); }
.wallets img { width: 28px; height: 28px; border-radius: 6px; }
.dlg .fine { padding: 12px 16px 16px; }
.toast {
  position: fixed; left: 0; right: 0; bottom: 58px; z-index: 40; margin-inline: auto; width: max-content; max-width: calc(100vw - 32px);
  padding: 10px 14px; background: var(--glass-hi); border: 1px solid var(--line-2); border-radius: var(--r); font: 400 13px/1.45 var(--sans);
}

/* ── responsive ─────────────────────────────────────── */
@media (max-width: 1180px) { .ext { display: none; } }
@media (max-width: 960px) {
  .pages, .ca { display: none; }
  .chapter { top: 64px; }
  .scene { height: auto; padding: 104px var(--gut) 64px; display: flex; flex-direction: column; gap: 14px; cursor: default; }
  .hole-slot { position: relative; top: auto; bottom: auto; height: min(70vw, 360px); flex: none; }
  .leaders { display: none; }
  .huds { position: static; display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 12px; pointer-events: auto; }
  .hud { position: relative; width: auto; transform: none !important; visibility: visible; }
  .sign { position: relative; bottom: auto; width: 100%; grid-template-columns: minmax(0, 1fr); }
  .sign-main { border-right: 0; border-bottom: 1px solid var(--line); }
  .bridge-grid, .parity-grid { grid-template-columns: minmax(0, 1fr); }
  .orbit { grid-template-columns: minmax(0, 1fr); row-gap: 14px; padding-block: 0; }
  .orbit-ring { display: none; }
  .n1, .n2, .n3, .n4 { grid-column: 1; grid-row: auto; justify-self: stretch; max-width: none; }
  .facts { grid-template-columns: minmax(0, 1fr); }
  .dock-hint, .dock-bnb { display: none; }
  .sec { padding-top: 104px; }
}
@media (max-width: 600px) {
  .huds { grid-template-columns: minmax(0, 1fr); }
  .hist li { grid-template-columns: minmax(0, 1fr) auto; row-gap: 5px; }
  .dock { gap: 12px; }
  #dockArc { display: none; }
  .sign-main, .sign-side { padding: 18px; }
  .sign-wm { font-size: 26px; }
  .sign-cn { font-size: 21px; }
  .chart-box { height: 260px; }
  .wallet-btn { padding: 0 10px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .steps li.run .sdot::after, .ring-flow { animation: none; }
  .band-mark, .bar > i { transition: none; }
}