:root {
  --stage: oklch(0.243 0.103 277);
  --stage-deep: oklch(0.18 0.08 277);
  --stage-ink: oklch(0.96 0.02 80);
  --stage-soft: oklch(0.96 0.02 80 / 0.8);
  --panel: oklch(0.96 0.02 80 / 0.1);
  --prize: oklch(0.78 0.158 74);
  --prize-ink: oklch(0.243 0.103 277);
  --slice: oklch(0.521 0.101 293);
  --taken: oklch(0.642 0.081 343);
  --taken-ink: oklch(0.45 0.11 343);
  --charity: oklch(0.78 0.12 138);
  --paper: oklch(0.972 0.012 80);
  --ink: oklch(0.243 0.06 277);
  --muted: oklch(0.45 0.04 277);
  --danger: oklch(0.75 0.15 25);
  --radius: 10px;
  --display: "Bebas Neue", Impact, sans-serif;
  --sans: Roboto, system-ui, sans-serif;
}
* { box-sizing: border-box; }
html, body { margin: 0; }
body { background: var(--paper); color: var(--ink); font: 16px/1.5 var(--sans); -webkit-font-smoothing: antialiased; }
a { color: inherit; }
.display { font-family: var(--display); letter-spacing: 0.02em; font-weight: 400; }

header.top { background: var(--stage); color: var(--stage-ink); display: flex; align-items: center; justify-content: space-between; padding: 16px clamp(24px, 4vw, 48px); }
.logo { display: flex; align-items: baseline; gap: 12px; text-decoration: none; }
.logo b { font: 400 36px/1 var(--display); color: var(--prize); letter-spacing: 0.04em; }
.logo span { font: 400 24px/1 var(--display); letter-spacing: 0.2em; color: var(--stage-soft); }
.live { font-size: 14px; color: var(--stage-soft); display: flex; align-items: center; gap: 8px; }
.live::before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: var(--charity); animation: pulse 2s infinite; }
@keyframes pulse { 50% { opacity: 0.3; } }

.stage { background: var(--stage); color: var(--stage-ink); padding: 32px clamp(24px, 4vw, 48px) 64px; }
.stage-grid { max-width: 1152px; margin: 0 auto; display: grid; gap: 48px; align-items: center; }
@media (min-width: 900px) { .stage-grid { grid-template-columns: 1.1fr 1fr; } }

.wheel { position: relative; width: 100%; max-width: 520px; margin: 0 auto; aspect-ratio: 1; }
.wheel svg { width: 100%; height: 100%; filter: drop-shadow(0 20px 40px oklch(0.1 0.08 277 / 0.5)); }
.wheel .hub { position: absolute; inset: 0; display: flex; align-items: center; justify-content: center; pointer-events: none; font: 400 clamp(40px, 7vw, 56px)/1 var(--display); color: var(--prize); }

.kicker { font-size: 14px; text-transform: uppercase; letter-spacing: 0.25em; color: var(--prize); margin: 0; }
h1.prize { font: 400 clamp(48px, 7vw, 76px)/0.9 var(--display); margin: 8px 0; }
.sub { color: var(--stage-soft); margin: 0; }
.prize-img { width: 100%; max-height: 220px; object-fit: cover; border-radius: var(--radius); margin-bottom: 16px; }

.stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin: 32px 0; }
.stat { background: var(--panel); border-radius: var(--radius); padding: 16px; }
.stat p { margin: 0; font-size: 14px; color: var(--stage-soft); }
.stat strong { display: block; font: 400 clamp(28px, 3.4vw, 40px)/1.15 var(--display); color: var(--stage-ink); }
.stat.charity strong { color: var(--charity); }

form.play { display: grid; gap: 12px; }
.row { display: grid; gap: 12px; grid-template-columns: 1fr 1fr; }
@media (max-width: 560px) { .row { grid-template-columns: 1fr; } }
input { font: inherit; height: 52px; padding: 0 16px; border-radius: var(--radius); border: 1px solid oklch(0.96 0.02 80 / 0.3); background: var(--panel); color: var(--stage-ink); width: 100%; }
input::placeholder { color: oklch(0.96 0.02 80 / 0.6); }
input:focus { outline: 2px solid var(--prize); outline-offset: 1px; }
#payment { min-height: 0; }
.btn { font: 500 18px/1 var(--sans); height: 56px; border: 0; border-radius: var(--radius); background: var(--prize); color: var(--prize-ink); cursor: pointer; padding: 0 24px; transition: transform 0.15s, opacity 0.2s; }
.btn:hover { transform: translateY(-1px); }
.btn:disabled { opacity: 0.6; cursor: default; transform: none; }
.note { font-size: 14px; color: var(--stage-soft); margin: 0; }
.error { font-size: 15px; color: var(--danger); margin: 0; min-height: 0; }
.banner { background: var(--prize); color: var(--prize-ink); text-align: center; font-size: 14px; padding: 6px; font-weight: 500; }

.ticket { display: flex; overflow: hidden; border-radius: var(--radius); background: var(--prize); color: var(--prize-ink); animation: pop 0.5s cubic-bezier(0.2, 1.4, 0.4, 1); margin-top: 16px; }
.ticket .num { min-width: 112px; display: flex; align-items: center; justify-content: center; padding: 0 16px; border-right: 2px dashed oklch(0.243 0.103 277 / 0.4); font: 400 64px/1 var(--display); }
.ticket .txt { padding: 16px; display: grid; gap: 4px; align-content: center; }
.ticket .txt small { font-size: 14px; letter-spacing: 0.2em; text-transform: uppercase; opacity: 0.85; }
.ticket .txt span { font-weight: 500; }
@keyframes pop { from { transform: scale(0.9) translateY(8px); opacity: 0; } to { transform: none; opacity: 1; } }

.board-wrap { max-width: 1152px; margin: 0 auto; padding: 48px clamp(24px, 4vw, 48px); }
.board-head { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: baseline; gap: 16px; margin-bottom: 24px; }
.board-head h2 { font: 400 40px/1 var(--display); margin: 0; }
.board-head p { margin: 0; font-size: 14px; color: var(--muted); }
.board { display: grid; grid-template-columns: repeat(auto-fill, minmax(48px, 1fr)); gap: 4px; }
.cell { aspect-ratio: 1; display: flex; align-items: center; justify-content: center; border-radius: 4px; font: 400 18px/1 var(--display); border: 1px dashed oklch(0.243 0.06 277 / 0.25); transition: background 0.3s; }
.cell.taken { background: oklch(0.642 0.081 343 / 0.15); color: var(--taken-ink); border-color: transparent; text-decoration: line-through 2px; }
.cell.mine { outline: 2px solid var(--prize); }
.cell.win { background: var(--prize); color: var(--prize-ink); text-decoration: none; }

footer { max-width: 1152px; margin: 0 auto; padding: 24px clamp(24px, 4vw, 48px) 48px; font-size: 14px; color: var(--muted); display: flex; flex-wrap: wrap; gap: 16px; justify-content: space-between; }
.empty { text-align: center; padding: 96px 24px; }
.empty h1 { font: 400 64px/1 var(--display); margin: 0 0 8px; }
.hidden { display: none !important; }

.doc { max-width: 720px; margin: 0 auto; padding: 48px 24px; }
.doc h1 { font: 400 56px/1 var(--display); }
.stage-grid > * { min-width: 0; }
h1.prize { overflow-wrap: anywhere; }
@media (max-width: 560px) {
  .stats { gap: 8px; }
  .stat { padding: 12px; }
  .stat strong { font-size: 26px; }
  .ticket .num { min-width: 88px; font-size: 48px; }
}