:root{--bg: #0a0e27;--surface: #131736;--surface-2: #1b2147;--accent: #00c9a7;--accent-dim: #0a8a76;--text: #e4e7f1;--text-dim: #8a91b8;--danger: #ff5757;--warning: #ffb830;--border: #2a3166;--radius: 14px;--radius-sm: 8px;--space-1: 4px;--space-2: 8px;--space-3: 12px;--space-4: 16px;--space-6: 24px;--space-8: 32px;--shadow-sm: 0 2px 8px rgba(0, 0, 0, .25);--shadow-md: 0 8px 24px rgba(0, 0, 0, .35);--font-ui: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;--font-num: "SF Mono", ui-monospace, "Roboto Mono", monospace;--ease: cubic-bezier(.22, 1, .36, 1);--press-scale: .96;--t-fast: .12s;--t-base: .2s}.fk-num{font-family:var(--font-num);font-variant-numeric:tabular-nums;letter-spacing:.02em}.fk-btn{appearance:none;border:1px solid var(--border);background:var(--surface);color:var(--text);border-radius:var(--radius-sm);padding:var(--space-3) var(--space-4);font-family:var(--font-ui);font-weight:600;cursor:pointer;transition:transform var(--t-fast) var(--ease),background var(--t-fast) var(--ease),border-color var(--t-fast) var(--ease)}.fk-btn:active{transform:scale(var(--press-scale))}.fk-btn--primary{background:var(--accent);border-color:var(--accent);color:#03150f}.fk-btn--primary:active{background:var(--accent-dim)}@media (prefers-reduced-motion: reduce){.fk-btn{transition:none}}*{box-sizing:border-box;margin:0;padding:0}html,body{height:100dvh;background:var(--bg);color:var(--text);font-family:Hiragino Sans,Noto Sans JP,system-ui,sans-serif;font-variant-numeric:tabular-nums;overflow:hidden;touch-action:none;-webkit-tap-highlight-color:transparent;-webkit-user-select:none;user-select:none}#app{position:fixed;inset:0;display:flex;align-items:center;justify-content:center}#wrap{position:relative;overflow:hidden}#wrap canvas{position:absolute;left:0;top:0;display:block}#hud{position:absolute;left:0;right:0;top:0;display:flex;justify-content:space-between;align-items:flex-start;padding:calc(8px + env(safe-area-inset-top)) 16px 0;pointer-events:none;z-index:3}.hudcell{display:flex;flex-direction:column;align-items:center;min-width:72px}.hudlabel{font-size:10px;letter-spacing:.18em;color:var(--text-dim, #7a86b8)}#score,#timer,#mult{font-weight:800;color:var(--text, #e8ecff)}#score{font-size:21px}#timer{font-size:33px;line-height:1;transition:color .2s}#timer.low{color:#ff5470}#mult{font-size:21px;color:var(--text-dim, #7a86b8);transition:color .15s,transform .15s}#mult.hot{color:#ffb340}#mult.pulse{transform:scale(1.25)}#toast{position:absolute;left:50%;top:16%;transform:translate(-50%);background:#101630eb;border:1px solid rgba(255,179,64,.35);color:#ffd47a;font-size:15px;font-weight:700;padding:8px 18px;border-radius:999px;opacity:0;transition:opacity .25s,transform .25s;pointer-events:none;z-index:5;white-space:nowrap}#toast.show{opacity:1;transform:translate(-50%) translateY(-6px)}.panel{position:absolute;inset:0;background:#06091ad1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:13px;z-index:10;opacity:1;transition:opacity .3s}.panel.hidden{opacity:0;pointer-events:none}.logo{font-size:96px;font-weight:900;color:#ffb340;text-shadow:0 6px 30px rgba(255,179,64,.35);line-height:1}.sub{color:var(--text-dim, #7a86b8);font-size:13px;letter-spacing:.32em;margin-bottom:12px}.panel h2{color:var(--text, #e8ecff);font-size:19px;font-weight:800;letter-spacing:.22em}.bignum{font-size:52px;font-weight:900;color:#ffd47a;line-height:1}.subline{color:var(--text-dim, #7a86b8);font-size:14px}.subline.best{color:#00c9a7;font-weight:700}.panel button{margin-top:10px;background:linear-gradient(180deg,#ffb340,#e8932a);color:#221506;border:none;font-size:18px;font-weight:800;padding:16px 56px;border-radius:var(--radius, 14px);letter-spacing:.1em;transition:transform .08s}.panel button:active{transform:scale(.94)}#fps{position:absolute;left:8px;bottom:8px;color:#5fae72;font-size:11px;z-index:6;pointer-events:none}