:root{--bg: #0f172a;--panel: #1e293b;--panel-border: #334155;--cell-bg: #0b1426;--cell-border: #1e293b;--text: #e2e8f0;--text-dim: #94a3b8;--accent: #38bdf8;--shadow: 0 4px 12px rgba(0, 0, 0, .4)}*{box-sizing:border-box}html,body{margin:0;padding:0;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;min-height:100vh}body{background-image:radial-gradient(circle at 50% 0%,rgba(56,189,248,.08),transparent 60%)}.app{max-width:720px;margin:0 auto;padding:2rem 1rem;display:flex;flex-direction:column;align-items:center;gap:1.5rem}header{text-align:center;width:100%}h1{margin:0 0 .5rem;font-size:2.5rem;font-weight:800;letter-spacing:-.02em}.title-accent{background:linear-gradient(90deg,#38bdf8,#a855f7,#ec4899);-webkit-background-clip:text;background-clip:text;color:transparent}.rules-link{margin-top:.5rem;background:none;border:none;color:var(--text-dim);font-size:.9rem;cursor:pointer;text-decoration:underline;text-underline-offset:3px;font-family:inherit;transition:color .15s ease}.rules-link:hover{color:var(--text)}.rules-modal{text-align:left;max-width:460px;width:calc(100% - 2rem)}.rules-modal h2{text-align:center}.rules-list{margin:0 0 1rem;padding-left:1.4rem;line-height:1.55;color:var(--text-dim)}.rules-list li{margin-bottom:.7rem}.rules-list strong{color:var(--text)}.rules-kbd{margin:0 0 1.25rem;font-size:.82rem;color:var(--text-dim);text-align:center}.rules-modal .btn-primary{display:block;margin:0 auto}.game{display:flex;flex-direction:column;align-items:center;gap:1.25rem;width:100%}.queue{display:flex;align-items:center;gap:.75rem;background:var(--panel);border:1px solid var(--panel-border);padding:.75rem 1rem;border-radius:12px;box-shadow:var(--shadow)}.queue-label{font-size:.75rem;font-weight:700;letter-spacing:.1em;color:var(--text-dim);margin-right:.5rem}.queue-slot{display:flex;align-items:center;justify-content:center}.queue-current{position:relative}.queue-current:after{content:"";position:absolute;top:-4px;right:-4px;bottom:-4px;left:-4px;border:2px solid var(--accent);border-radius:50%;pointer-events:none;animation:pulse-ring 1.6s ease-in-out infinite}@keyframes pulse-ring{0%,to{transform:scale(1);opacity:.8}50%{transform:scale(1.08);opacity:1}}.board{display:flex;gap:6px;padding:12px;background:var(--panel);border:1px solid 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rgba(250,204,21,.45)}.hint-message.hint-setup{background:#38bdf826;color:#7dd3fc;border:1px solid rgba(56,189,248,.4)}.hint-message.hint-any{background:#94a3b826;color:var(--text-dim);border:1px solid rgba(148,163,184,.35)}@keyframes fade-out{to{opacity:0}}.cell{width:56px;height:56px;background:var(--cell-bg);border:1px solid var(--cell-border);border-radius:8px;display:flex;align-items:center;justify-content:center;position:relative}.cell-cleared{animation:flash .35s ease-out}@keyframes flash{0%{background:#fde047;box-shadow:0 0 24px #fde047e6,inset 0 0 16px #fde04799}to{background:var(--cell-bg);box-shadow:none}}.chip{width:44px;height:44px;border-radius:50%;display:flex;align-items:center;justify-content:center;color:#fff;font-weight:800;font-size:1.4rem;text-shadow:0 1px 2px rgba(0,0,0,.3);box-shadow:0 2px 6px #00000080,inset 0 2px 4px #ffffff40,inset 0 -2px 4px #0003;animation:drop-in .28s cubic-bezier(.5,.05,.45,1)}@keyframes drop-in{0%{transform:translateY(-280px);opacity:0}70%{transform:translateY(6px);opacity:1}to{transform:translateY(0);opacity:1}}.chip-ghost{opacity:.35;animation:none;box-shadow:none}.score-panel{display:flex;align-items:center;gap:1.5rem;background:var(--panel);border:1px solid var(--panel-border);padding:.875rem 1.25rem;border-radius:12px;box-shadow:var(--shadow)}.score-block{display:flex;flex-direction:column;align-items:flex-start}.score-label{font-size:.7rem;font-weight:700;letter-spacing:.1em;color:var(--text-dim)}.score-value{font-size:1.8rem;font-weight:800;font-variant-numeric:tabular-nums}.score-value-sm{font-size:1.2rem;font-weight:700;color:var(--text);font-variant-numeric:tabular-nums}.combo-banner{background:linear-gradient(90deg,#f59e0b,#ec4899);padding:.4rem .8rem;border-radius:999px;font-weight:800;font-size:.95rem;letter-spacing:.05em;animation:combo-pop .5s ease-out}@keyframes combo-pop{0%{transform:scale(.8);opacity:0}60%{transform:scale(1.15)}to{transform:scale(1);opacity:1}}.btn{background:transparent;color:var(--text);border:1px solid var(--panel-border);padding:.5rem 1rem;border-radius:8px;font-weight:600;cursor:pointer;font-size:.9rem;transition:all .15s ease}.btn:hover{border-color:var(--accent);color:var(--accent)}.btn:disabled{opacity:.4;cursor:not-allowed}.btn:disabled:hover{border-color:var(--panel-border);color:var(--text)}.btn-row{display:flex;gap:.5rem}.icon-btn{padding:.5rem .7rem;font-size:1rem;line-height:1}.kbd-list{list-style:none;margin-top:.5rem;margin-left:-1rem;font-size:.82rem;color:var(--text-dim)}kbd{display:inline-block;padding:1px 6px;margin:0 1px;background:var(--cell-bg);border:1px solid var(--panel-border);border-radius:4px;font-family:ui-monospace,SF Mono,monospace;font-size:.78rem;color:var(--text)}.new-high{background:linear-gradient(90deg,#facc15,#f97316);color:#1f1300;font-weight:800;padding:.4rem .9rem;border-radius:999px;display:inline-block;margin-bottom:1rem;animation:combo-pop .5s ease-out}.modal-best{margin:-.5rem 0 1rem;color:var(--text-dim);font-size:.95rem}.btn-primary{background:var(--accent);color:#0f172a;border-color:var(--accent)}.btn-primary:hover{background:#7dd3fc;border-color:#7dd3fc;color:#0f172a}.modal-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;background:#0f172acc;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);display:flex;align-items:center;justify-content:center;z-index:50;animation:fade-in .2s ease}.modal{background:var(--panel);border:1px solid var(--panel-border);padding:2rem 2.5rem;border-radius:16px;text-align:center;box-shadow:0 20px 60px #0009;animation:modal-pop .25s ease-out}.modal h2{margin:0 0 .5rem;font-size:2rem;background:linear-gradient(90deg,#38bdf8,#ec4899);-webkit-background-clip:text;background-clip:text;color:transparent}.modal-score{margin:0 0 1.5rem;color:var(--text-dim);font-size:1.1rem}.modal-score strong{color:var(--text);font-size:1.3rem}@keyframes fade-in{0%{opacity:0}to{opacity:1}}@keyframes modal-pop{0%{transform:scale(.85);opacity:0}to{transform:scale(1);opacity:1}}.site-footer{margin-top:.5rem;text-align:center;font-size:.82rem}.site-footer a{color:var(--text-dim);text-decoration:none}.site-footer a:hover{color:var(--text);text-decoration:underline}.ad-slot{display:flex;align-items:center;justify-content:center;background:#94a3b80f;border:1px dashed var(--panel-border);border-radius:10px;color:var(--text-dim);overflow:hidden}.ad-slot-label{font-size:.7rem;letter-spacing:.12em;text-transform:uppercase;opacity:.6}.ad-slot-banner{width:100%;max-width:728px;height:90px;margin-top:.5rem}.ad-slot-interstitial{width:100%;max-width:300px;height:250px;margin:0 auto 1.25rem}@media (max-width: 540px){.cell{width:44px;height:44px}.chip{width:36px;height:36px;font-size:1.1rem}h1{font-size:2rem}.ad-slot-banner{height:60px}.ad-slot-interstitial{max-width:250px;height:200px}}