:root{--night: #14182e;--indigo: #1c2450;--carmine: #c41e3a;--lantern: #ffb43c;--paper: #fff3d6;--teak: #7a4a24;--ink: #1a1420;--mist: #d8c8b0;--safe: env(safe-area-inset-bottom, 0px);color-scheme:dark}*,*:before,*:after{box-sizing:border-box}html,body{margin:0;min-height:100%;background:radial-gradient(70% 42% at 50% -6%,rgba(255,180,60,.2),transparent 52%),repeating-linear-gradient(90deg,rgba(196,30,58,.08) 0 14px,transparent 14px 28px),linear-gradient(180deg,var(--indigo) 0%,var(--night) 52%,#2a1814 100%);color:var(--paper);font-family:Zen Maru Gothic,Noto Sans JP,Hiragino Sans,Yu Gothic,sans-serif}body{min-height:100dvh}#app{width:min(540px,100%);margin:0 auto;min-height:100dvh;min-height:100svh;padding:calc(10px + env(safe-area-inset-top,0px)) 12px calc(14px + var(--safe));display:grid;grid-template-rows:auto auto minmax(300px,1fr) auto auto auto;gap:8px}button{font:inherit;color:inherit;border:0;background:none;padding:0;cursor:pointer;touch-action:manipulation}button:focus-visible{outline:2px solid var(--lantern);outline-offset:3px}.top{display:grid;grid-template-columns:1fr auto;align-items:end;gap:8px 10px}.brand h1{margin:0;font-family:Zen Maru Gothic,Noto Sans JP,Hiragino Sans,sans-serif;font-weight:700;font-size:clamp(28px,8vw,42px);letter-spacing:.14em;line-height:1.1;text-shadow:0 2px 0 #8a1424}.eyebrow,.ver{margin:0;font-size:11px;letter-spacing:.18em;color:var(--mist)}.ver{font-family:Share Tech Mono,ui-monospace,monospace;letter-spacing:.08em;color:var(--lantern)}.pills{display:flex;flex-wrap:wrap;justify-content:flex-end;gap:6px}.pill{min-width:68px;padding:6px 8px 5px;border:1px solid rgba(255,180,60,.38);background:#14182e9e;text-align:center}.pill b{display:block;font-family:Share Tech Mono,ui-monospace,monospace;font-size:16px;line-height:1}.pill span{font-size:10px;letter-spacing:.12em;color:var(--mist)}.how{margin:0;font-size:12px;line-height:1.6;color:var(--mist)}.stage-wrap{position:relative;min-height:min(58dvh,440px);display:grid}.stage{position:relative;width:100%;min-height:min(58dvh,440px);height:100%;border:10px solid var(--teak);box-shadow:inset 0 0 0 3px #c48a4a,0 10px #2a140c;overflow:hidden;background:#1c2450}canvas{position:absolute;top:0;right:0;bottom:0;left:0;display:block;width:100%;height:100%;touch-action:none}.prompt{position:absolute;left:10px;right:10px;top:8px;margin:0;text-align:center;font-family:Zen Maru Gothic,Noto Sans JP,Hiragino Sans,sans-serif;font-size:clamp(13px,3.6vw,16px);letter-spacing:.08em;color:var(--paper);text-shadow:0 1px 0 rgba(20,16,28,.7);pointer-events:none}.hud{display:flex;justify-content:space-between;gap:8px;font-size:13px;letter-spacing:.04em}.hud b{color:var(--lantern);font-weight:700}.actions{display:grid;grid-template-columns:1fr 1fr;gap:10px}.lantern{min-height:52px;padding:0 14px;background:linear-gradient(180deg,#ffd27a,#ffb43c 55%,#d88918);color:var(--ink);letter-spacing:.12em;font-weight:700;box-shadow:0 4px #8a4a10}.lantern:active{transform:translateY(2px);box-shadow:0 2px #8a4a10}.lantern:disabled{opacity:.45}.ghost{min-width:44px;min-height:44px;padding:0 10px;border:1px solid rgba(255,180,60,.45);color:var(--lantern)}.toast,.sheet{position:absolute;top:0;right:0;bottom:0;left:0;display:grid;place-items:center;pointer-events:none}.toast p,.sheet .panel{margin:0;padding:14px 18px;background:#14182ef0;border:2px solid var(--lantern);color:var(--paper);text-align:center;letter-spacing:.08em}.toast[hidden],.sheet[hidden]{display:none}.sheet{pointer-events:auto;background:#0c0a1875}.sheet .panel{width:min(90%,320px);display:grid;gap:10px}.sheet h2{margin:0;font-family:Zen Maru Gothic,Noto Sans JP,Hiragino Sans,sans-serif;font-weight:700;letter-spacing:.14em}.sheet .prize{margin:0;font-size:28px;font-family:Zen Maru Gothic,Noto Sans JP,Hiragino Sans,sans-serif;color:var(--lantern)}.sheet .meta{margin:0;color:var(--mist);font-size:13px}.note{margin:0;font-size:10px;letter-spacing:.06em;color:#d8c8b0b8;text-align:center}@media(max-width:420px){.how{font-size:11px;line-height:1.45}.top{grid-template-columns:1fr}.pills{justify-content:flex-start}}@media(prefers-reduced-motion:reduce){.lantern{transition:none}}