:root {
  --bg: #fff8ef;
  --fg: #2b2118;
  --muted: #7a6a5c;
  --card: #ffffff;
  --line: #ecdccb;
  --accent: #b4511d;
  --accent-fg: #ffffff;
  --sel: #ffe2c7;
  --secret: #fff1d6;
  --night: #24203a;
  --night-fg: #f3eefe;
  --night-card: #332d52;
  --radius: 16px;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #1c1814;
    --fg: #f4ebe1;
    --muted: #b3a291;
    --card: #2a241e;
    --line: #463b30;
    --accent: #f08a4b;
    --accent-fg: #1c1814;
    --sel: #5a3a22;
    --secret: #3d311f;
    --night: #14111f;
    --night-card: #262040;
  }
}
* { box-sizing: border-box; }
html, body { margin: 0; background: var(--bg); color: var(--fg); }
body {
  font-family: system-ui, -apple-system, "PingFang TC", "Noto Sans TC", "Microsoft JhengHei", sans-serif;
  font-size: 17px; line-height: 1.55;
  -webkit-tap-highlight-color: transparent;
}
.app { max-width: 560px; margin: 0 auto; padding: 0 16px calc(24px + env(safe-area-inset-bottom)); min-height: 100dvh; }
.bar { display: flex; align-items: center; gap: 12px; padding: 12px 0; }
.brand { font-weight: 700; flex: 1; }
main { padding: 8px 0 24px; }
.stack > * + * { margin-top: 14px; }
.center { text-align: center; }
.row { display: flex; align-items: center; gap: 12px; }
.between { justify-content: space-between; flex-wrap: wrap; }
h1 { font-size: 2.2rem; margin: 0; }
h2 { font-size: 1.45rem; margin: 0; line-height: 1.35; }
h3 { margin: 18px 0 0; }
p { margin: 0; }
.lead { font-size: 1.1rem; }
.muted { color: var(--muted); }
.small { font-size: 0.88rem; }
.hero { font-size: 3.4rem; line-height: 1.2; }
.icon { font-size: 1.8rem; line-height: 1; }
.icon.big { font-size: 4rem; }

.btn {
  display: block; width: 100%; min-height: 48px; padding: 10px 16px;
  border: 2px solid var(--line); border-radius: var(--radius);
  background: var(--card); color: var(--fg); font: inherit; font-weight: 600; cursor: pointer;
}
.btn.primary { background: var(--accent); border-color: var(--accent); color: var(--accent-fg); }
.btn.big { min-height: 60px; font-size: 1.15rem; }
.btn:disabled { opacity: 0.4; cursor: not-allowed; }
.btn:focus-visible, .tile:focus-visible, .hold:focus-visible, .link:focus-visible, input:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; }
.btn.sq { width: 48px; padding: 0; font-size: 1.3rem; }
.btn.chip { width: auto; min-height: 44px; padding: 6px 14px; display: inline-block; }
.btn.chip.wide { display: block; width: 100%; text-align: left; }
.btn.chip.on { background: var(--sel); border-color: var(--accent); }
.seg { display: flex; gap: 8px; flex-wrap: wrap; }
.stepper { display: flex; align-items: center; gap: 14px; }
.stepper b { font-size: 1.5rem; min-width: 2ch; text-align: center; }
main:focus { outline: none; }
.link { background: none; border: 0; color: var(--accent); font: inherit; font-weight: 600; cursor: pointer; min-height: 44px; padding: 0 4px; }

.names { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.name { display: flex; flex-direction: column; gap: 4px; font-size: 0.9rem; color: var(--muted); }
.name input {
  font: inherit; font-size: 16px; color: var(--fg); background: var(--card);
  border: 2px solid var(--line); border-radius: 12px; padding: 10px; min-height: 44px; width: 100%;
}
.note { background: var(--secret); border-radius: var(--radius); padding: 12px 14px; }

.handoff .who { font-size: 2.2rem; font-weight: 700; line-height: 1.3; padding: 24px 0; }
.hold {
  user-select: none; -webkit-user-select: none; -webkit-touch-callout: none; touch-action: none;
  border: 3px dashed var(--accent); border-radius: 22px; min-height: 280px;
  display: flex; align-items: center; justify-content: center; padding: 16px; cursor: pointer; background: var(--card);
}
.hold-cover { font-size: 1.2rem; font-weight: 600; }
.hold-cover::first-line { font-size: 3rem; }
.card { text-align: center; }
.card > * + * { margin-top: 8px; }
.secret { background: var(--secret); border-radius: 12px; padding: 10px 12px; font-weight: 600; }
.big-text { font-size: 1.25rem; }
.host-line { font-size: 1.65rem; text-align: center; }
.host-answer { font-size: 2.4rem; font-weight: 800; text-align: center; padding: 12px; }

body.is-night { background: var(--night); color: var(--night-fg); }
body.is-night .brand { color: var(--night-fg); }
body.is-night .link { color: #f08a4b; }
.night .tile.sel { border-color: #f08a4b; box-shadow: 0 0 0 2px #f08a4b; }
.night { color: var(--night-fg); }
.night .muted { color: #bdb3dc; }
.night .secret { background: var(--night-card); color: var(--night-fg); }
.night .btn:not(.primary) { background: var(--night-card); color: var(--night-fg); border-color: #4a4270; }
.night .btn.chip.on { border-color: #f08a4b; background: #4b3a5e; }
.night .tile { background: var(--night-card); color: var(--night-fg); border-color: #4a4270; }
.night .tile.sel { background: #4b3a5e; }

.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(96px, 1fr)); gap: 10px; }
.tile {
  display: flex; flex-direction: column; align-items: center; gap: 2px; padding: 10px 6px; min-height: 96px;
  border: 2px solid var(--line); border-radius: 14px; background: var(--card); color: var(--fg); font: inherit; cursor: pointer;
}
.tile.sel { border-color: var(--accent); background: var(--sel); box-shadow: 0 0 0 2px var(--accent); }
.tile:disabled { opacity: 0.3; cursor: not-allowed; }
.seatno { font-size: 0.8rem; color: var(--muted); }
.night .seatno { color: #bdb3dc; }
.pname { font-weight: 600; font-size: 0.95rem; word-break: break-word; }
.tag { font-size: 0.75rem; background: var(--secret); border-radius: 8px; padding: 0 6px; color: var(--fg); }

.table { display: flex; flex-wrap: wrap; justify-content: center; gap: 8px; }
.seat { display: inline-flex; flex-direction: column; align-items: center; font-size: 1.6rem; line-height: 1.1; }
.seat small { font-size: 0.75rem; color: var(--muted); }
.seat.out { opacity: 0.75; }
.announce { font-size: 1.2rem; font-weight: 700; background: var(--secret); border-radius: 14px; padding: 12px; }
.timer { font-size: 4.5rem; font-weight: 800; font-variant-numeric: tabular-nums; letter-spacing: 1px; }
.timer.done { font-size: 2.6rem; color: var(--accent); }

.roles { list-style: none; padding: 0; margin: 0; display: grid; gap: 10px; }
.roles li { display: flex; gap: 12px; align-items: flex-start; background: var(--card); border: 2px solid var(--line); border-radius: 14px; padding: 10px 12px; }
.roles li.is-wolf { border-color: var(--accent); }
@media (prefers-reduced-motion: no-preference) {
  .tile, .btn { transition: transform 0.08s ease; }
  .tile:active:not(:disabled), .btn:active:not(:disabled) { transform: scale(0.97); }
}