:root{--bg: #070b16;--panel: #17203a;--panel-2: #23304f;--text: #e8ecf4;--muted: #94a3c0;--accent: #38bdf8;--gold: #fcd34d;--good: #86efac;color-scheme:dark}*{box-sizing:border-box}html,body,#app{height:100%}body{margin:0;background: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%;max-width:1000px;margin-inline:auto;padding:max(12px,env(safe-area-inset-top)) max(12px,env(safe-area-inset-right)) max(12px,env(safe-area-inset-bottom)) max(12px,env(safe-area-inset-left));display:flex;flex-direction:column;gap:10px;-webkit-touch-callout:none;-webkit-user-select:none;user-select:none}.hud{display:flex;align-items:center;justify-content:space-between;gap:8px}.hud-stats{display:flex;align-items:center;gap:8px;min-width:0}.hud-actions{display:flex;gap:8px;flex:none}.stat{display:flex;align-items:baseline;gap:8px;min-width:0;min-height:44px;padding:10px 14px;border-radius:10px;background:var(--panel)}.stat-label{min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-size:15px;font-weight:600}.stat-value{flex:none;direction:ltr;unicode-bidi:isolate;color:var(--muted);font-size:13px;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:.45;cursor:default}.btn-icon{padding:0 10px;font-size:17px}.btn-icon[data-on]{background:var(--accent);color:#06263a}.btn-primary{background:var(--accent);color:#06263a;padding:0 28px;font-size:16px}.btn-ghost{background:transparent;color:var(--muted);font-weight:500;font-size:14px}.btn-ghost[hidden]{display:none}.board-wrap{position:relative;flex:1;min-height:0;border-radius:12px;overflow:hidden;touch-action:none;cursor:pointer}.board-wrap:after{content:"";position:absolute;inset:0;border-radius:inherit;pointer-events:none;box-shadow:inset 0 0 0 1px #94a3b829}canvas{position:absolute;inset:0;width:100%;height:100%;display:block}.banner{position:absolute;inset-inline:0;top:6%;display:flex;justify-content:center;padding-inline:12px;text-align:center;pointer-events:none}.banner[hidden]{display:none}.banner-title{padding:6px 14px;border-radius:999px;background:#060910c7;font-size:clamp(13px,3.4vw,20px);font-weight:700;color:var(--good);text-shadow:0 2px 12px rgba(2,8,20,.9)}.banner[data-tone=hint] .banner-title{color:var(--accent)}.overlay{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;padding:14px;background:#060910b8;-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px);overflow:hidden}.overlay[hidden]{display:none}.overlay-card{display:flex;flex-direction:column;align-items:center;gap:10px;width:100%;max-width:44ch;max-height:100%;overflow-y:auto;text-align:center}.overlay-title{margin:0;font-size:clamp(20px,5.2vw,36px)}.overlay-note{margin:0;font-size:15px;font-weight:600;color:var(--gold)}.overlay-hint{margin:0;color:var(--muted);font-size:14px}.overlay-note[hidden],.overlay-hint[hidden],.picker[hidden]{display:none}.picker{display:flex;flex-wrap:wrap;justify-content:center;gap:6px;padding:2px}.chip{min-width:36px;min-height:36px;padding:0 8px;border:1px solid rgba(148,163,184,.25);border-radius:9px;background:var(--panel);color:var(--muted);font:inherit;font-size:13px;font-weight:700;font-variant-numeric:tabular-nums;cursor:pointer}.chip[data-solved]{border-color:#86efac80;color:var(--good)}.chip[data-current]{border-color:var(--accent);background:var(--panel-2);color:var(--text)}.overlay-actions{position:sticky;bottom:0;display:flex;flex-direction:column;align-items:center;gap:6px;padding-top:6px;width:100%;background:linear-gradient(to bottom,#06091000,#060910eb 40%)}@media(max-width:560px){.btn{padding:0 12px}.btn-primary{padding:0 24px}.stat{padding:8px 10px;gap:6px}.stat-label{font-size:14px}}@media(max-height:430px){.game{padding:max(8px,env(safe-area-inset-top)) max(8px,env(safe-area-inset-right)) max(8px,env(safe-area-inset-bottom)) max(8px,env(safe-area-inset-left));gap:6px}.stat{min-height:38px;padding:6px 10px}.overlay-card{gap:7px}.overlay-title{font-size:clamp(18px,5vw,28px)}.overlay-hint{font-size:13px}.chip{min-width:32px;min-height:32px}}@media(max-width:400px){.hud,.hud-stats,.hud-actions{gap:6px}.stat{padding:6px 10px}.stat-value{font-size:12px}}@media(max-width:340px){.game{padding:max(6px,env(safe-area-inset-top)) max(6px,env(safe-area-inset-right)) max(6px,env(safe-area-inset-bottom)) max(6px,env(safe-area-inset-left));gap:6px}.stat{display:none}.btn{padding:0 9px}.btn-icon{padding:0 8px}.stat{padding:4px 8px}}@media(max-width:320px),(max-height:300px){.overlay-hint{display:none}}@media(prefers-reduced-motion:reduce){.btn:active{transform:none}}