:root {
  color-scheme: dark;
  --ink: #f8f2e5;
  --muted: #c5bda8;
  --bg: #171713;
  --panel: #24241e;
  --line: #47463a;
  --gold: #ffda75;
  --a: #ffac83;
  --b: #96ddc3;
  font-family: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;
}
* { box-sizing: border-box; }
body { margin: 0; min-height: 100vh; color: var(--ink); background: radial-gradient(ellipse at top, #333025, var(--bg) 540px); }
[hidden] { display: none !important; }
.shell { width: min(100%, 37rem); margin: 0 auto; padding: 1.65rem 1rem 2.4rem; }
header { margin-bottom: 1.05rem; }
h1, h2, p { margin: 0; }
h1 { font-size: clamp(2.35rem, 10vw, 3.8rem); line-height: 1.13; letter-spacing: -.04em; }
h2 { font-size: clamp(1.45rem, 5vw, 2rem); line-height: 1.26; }
p { line-height: 1.65; color: var(--muted); margin: .55rem 0 .85rem; }
.eyebrow { display: block; color: var(--gold); font-weight: 700; font-size: .82rem; letter-spacing: .14em; margin-bottom: .45rem; }
.panel, .guide, .scoreboard { border: 1px solid var(--line); border-radius: 1rem; background: var(--panel); }
.panel { padding: 1.12rem; }
.guide { padding: .7rem .95rem; margin: .8rem 0; }
.guide summary { font-weight: 700; padding: .2rem 0; cursor: pointer; }
.guide p:last-child { margin-bottom: .15rem; }
.scoreboard { margin-top: .9rem; padding: .7rem .85rem; display: flex; align-items: center; justify-content: space-between; gap: .55rem; flex-wrap: wrap; font-variant-numeric: tabular-nums; }
.scoreboard strong { font-size: 1.2rem; }
.team-a { color: var(--a); }
.team-b { color: var(--b); }
button, input { font: inherit; min-height: 3rem; border-radius: .72rem; }
button { background: #323229; border: 1px solid #595646; color: var(--ink); font-weight: 700; padding: .52rem .7rem; cursor: pointer; }
button:disabled { opacity: .48; cursor: default; }
button.primary { width: 100%; background: var(--gold); border-color: var(--gold); color: #241b0a; margin-top: .4rem; }
button.secondary { width: 100%; margin-top: .6rem; }
button.selected { border-color: var(--gold); color: var(--gold); }
button:focus-visible, input:focus-visible, summary:focus-visible, a:focus-visible { outline: 2px solid var(--gold); outline-offset: 3px; }
input { width: 100%; padding: .65rem .75rem; background: #1c1c17; border: 1px solid #6f6a56; color: var(--ink); margin: .3rem 0 .75rem; }
label { font-weight: 700; }
.grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: .45rem; margin: .65rem 0; }
.seats { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.tag { display: block; font-size: .72rem; font-weight: 500; margin-top: .16rem; }
.word { margin: .8rem 0; padding: .8rem; background: #323024; border-radius: .75rem; }
.word strong { display: block; font-size: clamp(1.8rem, 7.5vw, 2.7rem); line-height: 1.15; overflow-wrap: anywhere; }
.word small { color: var(--muted); display: block; margin-top: .28rem; }
.card { margin: .8rem 0; padding: .75rem .85rem; border-radius: .75rem; border: 1px solid #635533; }
.card strong { color: var(--gold); }
.card p { margin-bottom: .1rem; }
.result { color: var(--ink); }
a { color: var(--gold); }
#error { border: 1px solid #b9755a; padding: .65rem; color: #ffd2bf; border-radius: .7rem; }
footer { color: var(--muted); text-align: center; margin-top: 1rem; font-size: .8rem; }