: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:var(--font-ui);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;position:relative}#stage{position:relative;width:100%;height:100%;overflow:hidden}#game{display:block;width:100%;height:100%;touch-action:none}.hide{display:none!important}#hud{position:absolute;inset:0;pointer-events:none;display:flex;flex-direction:column;justify-content:space-between;padding:calc(env(safe-area-inset-top,0px) + 14px) 14px 18px}.hud-top{display:flex;justify-content:space-between;gap:8px;padding-top:6px;padding-right:48px}.hud-chip{background:#131736b8;border:1px solid var(--border);border-radius:var(--radius-sm);padding:7px 13px;font-size:15px;font-weight:700;color:var(--text);backdrop-filter:blur(8px);letter-spacing:.02em;font-variant-numeric:tabular-nums}#timer{color:var(--accent)}#timer.danger{color:var(--danger);animation:pulse .6s var(--ease) infinite alternate}@keyframes pulse{to{transform:scale(1.12)}}.hud-center{flex:1;position:relative}.combo{position:absolute;left:50%;top:38%;transform:translate(-50%,-50%);font-size:30px;font-weight:900;color:var(--warning);text-shadow:0 0 18px rgba(255,184,48,.6),0 2px 4px rgba(0,0,0,.6);letter-spacing:.04em;transition:transform 90ms var(--ease);pointer-events:none}.hud-bottom{display:flex;align-items:flex-end;justify-content:space-between;gap:14px}.pot{display:flex;flex-direction:column;gap:2px}.pot-label{font-size:12px;color:var(--text-dim);letter-spacing:.1em}.pot-val{font-size:40px;font-weight:900;line-height:1;color:#9af5e2;text-shadow:0 0 16px rgba(47,230,200,.45);font-variant-numeric:tabular-nums}.bank-btn{pointer-events:auto;background:linear-gradient(135deg,#14352f,#0e2622);border:1.5px solid var(--accent-dim);color:var(--text-dim);border-radius:var(--radius);padding:14px 22px;font-size:18px;font-weight:800;letter-spacing:.06em;display:flex;flex-direction:column;align-items:center;line-height:1.15;transition:transform var(--t-fast) var(--ease),box-shadow var(--t-base),border-color var(--t-base),color var(--t-base)}.bank-btn small{font-size:11px;font-weight:600;opacity:.8}.bank-btn.ready{background:linear-gradient(135deg,#1c7a68,#14352f);border-color:var(--accent);color:#eafffb;box-shadow:0 0 22px #00c9a766,0 6px 18px #0006}.bank-btn.ready:active{transform:scale(.93)}.bank-btn:disabled{opacity:.55}.overlay{position:absolute;inset:0;z-index:10;display:flex;align-items:center;justify-content:center;background:radial-gradient(ellipse at 50% 40%,#0a0e27c7,#060916f0);backdrop-filter:blur(3px);padding:24px;animation:fade .25s var(--ease)}@keyframes fade{0%{opacity:0}}.title-card,.result-card,.revive-card,.ad-card,.board-card{width:100%;max-width:340px;text-align:center;background:linear-gradient(160deg,var(--surface),#0d1130);border:1px solid var(--border);border-radius:22px;padding:30px 26px;box-shadow:var(--shadow-md);animation:rise .35s var(--ease)}@keyframes rise{0%{transform:translateY(16px) scale(.96);opacity:0}}.kanji{font-size:76px;font-weight:900;letter-spacing:.18em;color:#eafffb;line-height:1;text-shadow:0 0 30px rgba(47,230,200,.5);margin-left:.18em}.sub{font-size:18px;color:var(--accent);letter-spacing:.5em;margin:8px 0 18px}.tagline{font-size:15px;line-height:1.7;color:var(--text);margin-bottom:10px}.tagline2{font-size:13px;line-height:1.7;color:var(--text-dim);margin-bottom:22px}.tagline b,.tagline2 b{color:var(--accent);font-weight:800}.primary-btn{width:100%;background:linear-gradient(135deg,var(--accent),#0a8a76);color:#05201b;border:none;border-radius:var(--radius);padding:16px;font-size:19px;font-weight:900;letter-spacing:.08em;box-shadow:0 0 28px #00c9a759,0 8px 20px #0006;transition:transform var(--t-fast) var(--ease)}.primary-btn:active{transform:scale(.95)}.best-line{margin-top:18px;font-size:14px;color:var(--text-dim);font-weight:700}.streak-line{margin-top:6px;font-size:13px;color:var(--warning)}.result-title{font-size:22px;font-weight:800;color:var(--accent);letter-spacing:.18em}.result-score{font-size:64px;font-weight:900;color:#eafffb;line-height:1;margin:10px 0;text-shadow:0 0 26px rgba(47,230,200,.4)}.result-meta{font-size:14px;color:var(--text-dim);margin-bottom:6px}.rank-line{font-size:14px;color:var(--warning);min-height:20px;margin-bottom:18px;font-weight:700}.result-btns{display:flex;gap:10px}.result-btns .primary-btn{flex:2}.ghost-btn{flex:1;background:transparent;border:1.5px solid var(--border);color:var(--text-dim);border-radius:var(--radius);padding:16px 8px;font-size:15px;font-weight:700;transition:transform var(--t-fast) var(--ease),border-color var(--t-base)}.ghost-btn:active{transform:scale(.95);border-color:var(--accent)}.revive-head{font-size:26px;font-weight:900;color:var(--warning);margin-bottom:8px;text-shadow:0 0 18px rgba(255,184,48,.5)}.revive-msg{font-size:16px;color:var(--text);margin-bottom:22px}.gold-btn{width:100%;background:linear-gradient(135deg,#ffcf5a,#e09b20);color:#2a1a00;border:none;border-radius:var(--radius);padding:16px;font-size:17px;font-weight:900;letter-spacing:.04em;box-shadow:0 0 26px #ffb83066;margin-bottom:10px;transition:transform var(--t-fast) var(--ease)}.gold-btn:active{transform:scale(.95)}.revive-card .ghost-btn{width:100%;flex:none}.ad-card{max-width:300px}.ad-label{font-size:13px;color:var(--text-dim);letter-spacing:.2em;margin-bottom:16px}.ad-bar{width:100%;height:10px;background:#0a0e27;border:1px solid var(--border);border-radius:99px;overflow:hidden;margin-bottom:14px}.ad-fill{height:100%;width:0%;background:linear-gradient(90deg,var(--accent),#9af5e2);border-radius:99px;box-shadow:0 0 12px #00c9a799;transition:width 60ms linear}.ad-hint{font-size:14px;color:var(--text)}.ad-hint span{color:var(--accent);font-weight:800}.board-card{max-width:360px}.board-title{font-size:20px;font-weight:800;color:var(--accent);letter-spacing:.1em}.board-sub{font-size:12px;color:var(--text-dim);margin-bottom:14px}.board-list{list-style:none;max-height:46vh;overflow-y:auto;margin-bottom:16px}.board-list li{display:flex;align-items:center;gap:10px;padding:10px 12px;border-bottom:1px solid rgba(42,49,102,.4);font-size:15px}.board-list li.mine{background:#00c9a71f;border-radius:var(--radius-sm)}.bl-rank{width:28px;color:var(--text-dim);font-weight:800;text-align:center}.bl-name{flex:1;text-align:left;color:var(--text);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.bl-score{color:#9af5e2;font-weight:800;font-variant-numeric:tabular-nums}.board-list .loading{justify-content:center;color:var(--text-dim);border:none}.board-card .ghost-btn{width:100%;flex:none}.mute-btn{position:absolute;top:calc(env(safe-area-inset-top,0px) + 16px);right:14px;width:38px;height:38px;background:#13173699;border:1px solid var(--border);border-radius:50%;color:var(--accent);font-size:16px;z-index:20}.mute-btn.muted{color:var(--text-dim)}