:root {
  --bg: #0f212e;
  --panel: #1a2c38;
  --panel-2: #213743;
  --input: #0f212e;
  --line: #2f4553;
  --text: #b1bad3;
  --strong: #ffffff;
  --muted: #7f8ea3;
  --green: #00e701;
  --green-ink: #05260a;
  --orange: #ff9f1c;
  --red: #ed4163;
  --gold: #ffd166;
  --tile: #2f4553;
  --tile-hi: #557086;
  --radius: 8px;
  color-scheme: dark;
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
html, body { margin: 0; }
body {
  background: var(--bg);
  color: var(--text);
  font: 14px/1.4 system-ui, -apple-system, "Segoe UI", "Noto Sans TC", "PingFang TC", "Microsoft JhengHei", sans-serif;
  -webkit-tap-highlight-color: transparent;
  min-height: 100vh;
}
button, input, select { font: inherit; color: inherit; }
button { cursor: pointer; }
code { font-family: ui-monospace, Consolas, monospace; }

/* ---------- topbar ---------- */
.topbar {
  position: sticky; top: 0; z-index: 10; display: flex; align-items: center; gap: 12px;
  padding: 10px 16px; padding-top: max(10px, env(safe-area-inset-top));
  background: var(--panel); box-shadow: 0 2px 8px rgba(0, 0, 0, .3);
}
.brand { font-weight: 900; font-size: 20px; letter-spacing: 2px; color: var(--strong); }
.brand::before { content: none; }
.demo-tag { font-size: 12px; color: var(--muted); }
.back-btn { color: var(--strong); text-decoration: none; background: var(--panel-2); border-radius: 99px; padding: 6px 12px; font-weight: 700; font-size: 13px; }
.back-btn:hover { background: var(--line); }
.sound-btn { margin-left: auto; background: var(--panel-2); border: 0; border-radius: 99px; width: 36px; height: 36px; }
.sound-btn.off { opacity: .45; }
.wallet { display: flex; align-items: center; gap: 8px; background: var(--input); border-radius: 99px; padding: 8px 14px; }
.wallet b { color: var(--strong); font-variant-numeric: tabular-nums; }
.coin { width: 16px; height: 16px; border-radius: 50%; background: radial-gradient(circle at 35% 35%, #ffe28a, #f5a300); display: inline-block; }
.wallet.bump b { animation: bump .5s; }
@keyframes bump { 40% { color: var(--green); transform: scale(1.12); } }

/* ---------- layout ---------- */
.layout {
  max-width: 1200px; margin: 0 auto; padding: 12px; display: grid; gap: 12px;
  grid-template-columns: 320px 1fr;
  grid-template-areas: "panel stage" "tables stage";
  align-items: start;
}
.panel { grid-area: panel; background: var(--panel); border-radius: var(--radius); padding: 14px; }
.stage { grid-area: stage; background: var(--panel); border-radius: var(--radius); display: flex; flex-direction: column; overflow: hidden; }
.tables { grid-area: tables; background: var(--panel); border-radius: var(--radius); overflow: hidden; }

/* ---------- panel ---------- */
.seg { display: flex; background: var(--input); border-radius: 99px; padding: 4px; margin-bottom: 12px; }
.seg button { flex: 1; border: 0; background: none; padding: 8px; border-radius: 99px; font-weight: 600; }
.seg button.on { background: var(--panel-2); color: var(--strong); }
.seg button:disabled { opacity: .45; cursor: not-allowed; }

.field { margin-bottom: 10px; }
.field label { display: block; font-size: 12px; font-weight: 600; margin-bottom: 4px; }
.field small { font-weight: 400; color: var(--muted); }
.input-row { display: flex; background: var(--line); border-radius: 6px; padding: 2px; gap: 2px; align-items: stretch; }
.input-row input, select, .readout {
  flex: 1; min-width: 0; width: 100%; background: var(--input); border: 2px solid transparent; border-radius: 4px;
  padding: 8px 10px; color: var(--strong); font-weight: 600; outline: none; font-variant-numeric: tabular-nums;
}
select { border: 2px solid var(--line); border-radius: 6px; padding: 8px; appearance: auto; }
.readout { border: 2px solid var(--line); border-radius: 6px; background: var(--panel-2); }
.input-row input:focus, select:focus { border-color: #557086; }
.input-row input:disabled, select:disabled { opacity: .6; }
.input-row button { border: 0; background: var(--line); padding: 0 12px; border-radius: 4px; font-weight: 700; color: var(--strong); }
.input-row button:hover { background: #3d5564; }
.input-row button:disabled { opacity: .5; cursor: not-allowed; }
.suffix { align-self: center; padding: 0 10px; color: var(--muted); }
.two { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.hint { font-size: 12px; color: var(--muted); margin: 4px 0 8px; }
.hint b { color: var(--strong); }
.center { text-align: center; }

.stats { display: grid; grid-template-columns: 1fr 1fr; gap: 6px; margin: 6px 0 12px; }
.stats div { background: var(--input); border-radius: 6px; padding: 6px 10px; display: flex; flex-direction: column; }
.stats span { font-size: 11px; color: var(--muted); }
.stats b { color: var(--strong); font-variant-numeric: tabular-nums; font-size: 15px; }
.stats b.g { color: var(--green); }

.main-btn {
  width: 100%; border: 0; border-radius: var(--radius); padding: 14px 10px;
  font-size: 16px; font-weight: 800; background: var(--green); color: var(--green-ink);
  box-shadow: 0 4px 0 rgba(0, 0, 0, .25); transition: transform .05s, filter .15s;
  min-height: 52px; touch-action: manipulation;
}
.main-btn:hover { filter: brightness(1.08); }
.main-btn:active { transform: translateY(2px); }
.main-btn:disabled { filter: grayscale(.8) brightness(.7); cursor: not-allowed; }
.main-btn small { display: block; font-size: 12px; font-weight: 600; opacity: .85; }
.main-btn.stop { background: var(--red); color: #fff; }
.toggle { display: flex; align-items: center; justify-content: center; gap: 6px; margin-top: 10px; font-size: 13px; cursor: pointer; user-select: none; }
.toggle input { accent-color: var(--green); width: 16px; height: 16px; }

/* ---------- tables ---------- */
.tabs { display: flex; border-bottom: 1px solid var(--line); }
.tabs button { flex: 1; border: 0; background: none; padding: 10px; font-weight: 600; border-bottom: 2px solid transparent; }
.tabs button.on { color: var(--strong); border-bottom-color: var(--green); }
.tab-body { padding: 10px 12px; max-height: 380px; overflow: auto; }
.summary { display: grid; grid-template-columns: repeat(3, 1fr); gap: 6px; margin-bottom: 8px; }
.summary div { background: var(--input); border-radius: 6px; padding: 6px 8px; font-size: 11px; color: var(--muted); }
.summary b { display: block; color: var(--strong); font-size: 14px; font-variant-numeric: tabular-nums; }
.summary b.g { color: var(--green); }
.summary b.r { color: var(--red); }
/* 骰子欄固定放得下 6 顆小骰（15px + 2px 間距 + 高亮外框） */
.list-head, .row { display: grid; grid-template-columns: .6fr 1.3fr 106px .8fr .9fr; gap: 6px; font-size: 12px; padding: 5px 4px; font-variant-numeric: tabular-nums; align-items: center; }
.list-head.four, .row.four { grid-template-columns: .8fr 1fr 1fr 1fr; }
.list-head { color: var(--muted); }
.row { border-radius: 4px; }
.row:nth-child(odd) { background: rgba(255, 255, 255, .03); }
.row .g { color: var(--green); }
.row .r { color: var(--red); }
.row .x { color: var(--muted); opacity: .5; }
.row.cur { outline: 1px solid var(--gold); }
.row .dl { white-space: nowrap; overflow: hidden; }
.empty { color: var(--muted); padding: 16px; text-align: center; }
.rules { font-size: 13px; }
.rules h4 { color: var(--strong); margin: 12px 0 4px; }
.rules ol { padding-left: 18px; margin: 4px 0; }
.rules li { margin-bottom: 4px; }
.rules b { color: var(--strong); }
.rules code { color: var(--gold); font-size: 12px; }

/* ---------- modal ---------- */
.modal { border: 0; padding: 0; background: none; color: var(--text); max-width: min(520px, calc(100vw - 24px)); width: 100%; }
.modal::backdrop { background: rgba(0, 0, 0, .6); }
.modal-card { background: var(--panel); border-radius: 12px; padding: 16px; }
.modal h3 { margin: 0 0 12px; color: var(--strong); }
.modal h4 { margin: 8px 0; color: var(--strong); }
.modal hr { border: 0; border-top: 1px solid var(--line); margin: 12px 0; }
.hash { display: block; word-break: break-all; background: var(--input); padding: 8px; border-radius: 6px; font-size: 12px; }
.verify-out { font-size: 12px; margin: 6px 0; word-break: break-all; }
.verify-out .g { color: var(--green); }
.verify-out .r { color: var(--red); }
.verify-out .mini { --m: 30px; margin: 8px 4px 0 0; }
.modal-actions { margin-top: 12px; }