: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, #0a0e27);color:var(--text, #e8ecf8);font-family:system-ui,sans-serif;font-variant-numeric:tabular-nums;overflow:hidden;touch-action:none;-webkit-tap-highlight-color:transparent;user-select:none;-webkit-user-select:none}#app{width:100%;max-width:480px;height:100dvh;margin:0 auto;display:flex;flex-direction:column;padding:env(safe-area-inset-top) env(safe-area-inset-right) env(safe-area-inset-bottom) env(safe-area-inset-left)}#hud{height:54px;display:flex;align-items:center;justify-content:space-between;padding:0 14px;flex:none}#brand{display:flex;flex-direction:column;gap:1px}#brand .kanji{font-size:21px;font-weight:800;color:#9fe8da;letter-spacing:2px;line-height:1}#brand .day{font-size:9.5px;color:#6b7699;letter-spacing:1px}#score{font-size:26px;font-weight:800;color:#f3f6ff;min-width:90px;text-align:center}#right-hud{display:flex;flex-direction:column;align-items:flex-end;gap:4px}#pebbles{display:flex;gap:3px}#pebbles i{width:7px;height:9px;border-radius:50% 50% 45% 45%;background:#d9a85c;display:inline-block;transition:opacity .25s,transform .25s}#pebbles i.spent{opacity:.16;transform:scale(.75)}#weir{font-size:11px;font-weight:700;color:#62d9c4;letter-spacing:.5px;transition:transform .18s}#weir.bump{transform:scale(1.3)}#game{display:block;flex:1 1 auto;width:100%;min-height:0}#bottom{height:62px;flex:none;display:flex;align-items:center;justify-content:center;gap:12px;padding:0 14px 6px}#flowbtn{flex:1;max-width:300px;height:46px;border:1px solid rgba(98,217,196,.35);border-radius:14px;background:#142240d9;color:#9fe8da;font-size:17px;font-weight:700;letter-spacing:6px;font-family:inherit;transition:transform .08s,opacity .2s,border-color .2s}#flowbtn:active{transform:scale(.96)}#flowbtn:disabled{opacity:.28}#float-chip{font-size:11px;color:#6b7699;font-weight:700;min-width:44px;text-align:center}#float-chip.cap{color:#ffb454}#overlay{position:fixed;inset:0;display:flex;align-items:center;justify-content:center;background:#050814c7;backdrop-filter:blur(6px);z-index:30;opacity:1;transition:opacity .25s}#overlay.hidden{opacity:0;pointer-events:none}#modal{width:min(320px,86vw);border-radius:20px;padding:26px 22px 20px;background:linear-gradient(165deg,#131b38,#0c1228);border:1px solid rgba(120,150,200,.18);text-align:center;box-shadow:0 18px 60px #0000008c}#modal-title{font-size:15px;color:#8fa0c4;letter-spacing:4px;font-weight:700}#modal-score{font-size:46px;font-weight:800;color:#f3f6ff;margin:10px 0 2px}#modal-detail{font-size:12.5px;color:#8fa0c4;line-height:1.9;margin:8px 0 4px}#modal-detail b{color:#62d9c4;font-weight:700}#modal-bridge{display:none;margin:6px auto 0;padding:4px 14px;width:fit-content;border-radius:999px;font-size:12px;font-weight:800;letter-spacing:2px;color:#0a0e27;background:linear-gradient(90deg,#ffd166,#ffb454)}#modal-bridge.show{display:block}#modal-best{font-size:12px;color:#6b7699;margin-top:8px}#modal-best.new-best{color:#ffd166;font-weight:700}#modal button{margin-top:16px;width:100%;height:46px;border:none;border-radius:14px;background:linear-gradient(90deg,#18c8a8,#2fa3e0);color:#06121f;font-size:15px;font-weight:800;letter-spacing:3px;font-family:inherit;transition:transform .08s}#modal button:active{transform:scale(.96)}#modal button.ghostbtn{background:none;border:1px solid rgba(120,150,200,.3);color:#8fa0c4;margin-top:10px}#perf{position:fixed;left:6px;bottom:6px;font-size:10px;color:#5a6;z-index:40}.hidden{display:none}#overlay.hidden{display:flex}