:root{--bg: #060a12;--panel: #182135;--panel-2: #232f47;--text: #e9edf5;--muted: #93a0b8;--accent: #fbbf24;--accent-ink: #3a2503;--gold: #fcd34d;--good: #86efac;--rail: 148px;color-scheme:dark}*{box-sizing:border-box}html,body,#app{height:100%}body{margin:0;background:radial-gradient(120% 80% at 50% 0%,#101a2e 0%,var(--bg) 62%),var(--bg);color:var(--text);font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;-webkit-tap-highlight-color:transparent;overflow:hidden}.game{height:100%;padding:max(10px,env(safe-area-inset-top)) max(10px,env(safe-area-inset-right)) max(10px,env(safe-area-inset-bottom)) max(10px,env(safe-area-inset-left));display:flex;flex-direction:column;gap:10px;-webkit-touch-callout:none;-webkit-user-select:none;user-select:none}.sr-only{position:absolute;width:1px;height:1px;margin:-1px;padding:0;overflow:hidden;clip-path:inset(50%);white-space:nowrap}.hud{display:flex;align-items:center;justify-content:space-between;gap:8px;flex:none}.chips{display:flex;gap:8px;min-width:0}.actions{display:flex;gap:8px;flex:none}.chip{display:flex;align-items:center;gap:7px;min-width:0;min-height:44px;padding:8px 13px;border-radius:10px;background:var(--panel)}.chip.is-perfect .chip-value{color:var(--good)}.icon{width:17px;height:17px;flex:none;color:var(--muted)}.chip-label{color:var(--muted);font-size:12px;letter-spacing:.04em;text-transform:uppercase;white-space:nowrap}.chip-value{font-size:18px;font-weight:700;font-variant-numeric:tabular-nums}.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;min-height:44px;min-width:44px;padding:0 16px;border:0;border-radius:10px;background:var(--panel-2);color:var(--text);font:inherit;font-weight:600;cursor:pointer}.btn:active{transform:translateY(1px)}.btn:disabled{opacity:.4;cursor:default}.btn:disabled:active{transform:none}.btn-icon{padding:0 10px;font-size:17px}.btn-icon .icon{width:21px;height:21px;color:var(--text)}.btn-primary{background:var(--accent);color:var(--accent-ink);padding:0 26px;font-size:16px}.btn-ghost{background:transparent;color:var(--muted);font-weight:500;font-size:14px}.btn-ghost[hidden],.btn-primary[hidden]{display:none}.board-wrap{position:relative;flex:1;min-height:0;min-width:0;touch-action:none}canvas{position:absolute;inset:0;width:100%;height:100%;display:block}.overlay{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;padding:14px;background:#060a12c7;-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px);overflow-y:auto}.overlay[hidden]{display:none}.overlay-card{display:flex;flex-direction:column;align-items:center;gap:11px;max-width:40ch;text-align:center}.overlay-title{margin:0;font-size:clamp(19px,5.4vw,34px)}.overlay-score{margin:0;font-size:16px;font-weight:600}.overlay-note,.overlay-sub{margin:0;font-size:14px;font-weight:600;color:var(--muted)}.overlay-note.is-gold{color:var(--gold)}.overlay-hint{margin:0;color:var(--muted);font-size:14px;line-height:1.45}.overlay-score[hidden],.overlay-note[hidden],.overlay-sub[hidden],.overlay-hint[hidden]{display:none}.switch{display:flex;gap:6px;padding:4px;border-radius:12px;background:#182135e6}.seg{min-height:40px;min-width:52px;padding:0 12px;border:0;border-radius:9px;background:transparent;color:var(--muted);font:inherit;font-weight:700;font-variant-numeric:tabular-nums;cursor:pointer}.seg.is-active{background:var(--panel-2);color:var(--text)}.seg:active{transform:translateY(1px)}@media(min-width:560px)and (min-aspect-ratio:3 / 2){.game{flex-direction:row;align-items:stretch;gap:12px}.hud{flex-direction:column;align-items:stretch;justify-content:flex-start;width:var(--rail);flex:none;gap:10px}.chips{flex-direction:column}.actions{flex-wrap:wrap;margin-top:auto}.btn-icon{flex:1}}@media(max-height:430px){.game{padding:max(7px,env(safe-area-inset-top)) max(7px,env(safe-area-inset-right)) max(7px,env(safe-area-inset-bottom)) max(7px,env(safe-area-inset-left));gap:7px}.chip{min-height:36px;padding:5px 10px}.chip-value{font-size:16px}.overlay-card{gap:8px}.overlay-title{font-size:clamp(17px,4.6vw,26px)}.overlay-hint{font-size:13px}.seg{min-height:38px}}@media(max-width:380px){.chip-label{display:none}.chip{padding:6px 10px;gap:6px}.hud,.chips,.actions{gap:6px}}@media(max-width:330px){.btn-icon{padding:0 8px}.chip{padding:5px 8px}}@media(max-width:300px){#best-chip{display:none}.chip{padding:4px 7px}.chip-value{font-size:16px}}@media(max-width:260px){#hint-btn{display:none}}@media(max-width:300px),(max-height:290px){.overlay-hint{display:none}}@media(prefers-reduced-motion:reduce){.btn:active,.seg:active{transform:none}}