:root{--bg: #0c0d12;--bg-soft: #14161d;--bg-card: #191c25;--text: #f2f4f9;--muted: #949cb0;--line: #262a36;--glow: #15181f;--accent: #34d399;--bad: #ff6b6b;--radius: 18px;--shadow: 0 16px 40px rgba(0, 0, 0, .5)}:root[data-theme=classic]{--bg: #12141c;--bg-soft: #1b1e2b;--bg-card: #21273a;--text: #eef1f7;--muted: #9aa3b8;--line: #2e3550;--glow: #1d2233;--shadow: 0 10px 30px rgba(0, 0, 0, .4);--accent: #26de81}*{box-sizing:border-box}html{-webkit-text-size-adjust:100%;text-size-adjust:100%}html,body{margin:0;min-height:100%;background:radial-gradient(1100px 700px at 50% -20%,var(--glow),var(--bg));color:var(--text);font-family:Segoe UI,system-ui,-apple-system,Roboto,Helvetica,Arial,sans-serif;overflow-x:hidden;overscroll-behavior:none;-webkit-tap-highlight-color:transparent}body{min-height:100dvh}button,a{-webkit-tap-highlight-color:transparent;-webkit-touch-callout:none;touch-action:manipulation;-webkit-user-select:none;user-select:none}#app{max-width:480px;margin:0 auto;padding:20px 18px 60px;padding-left:max(18px,env(safe-area-inset-left));padding-right:max(18px,env(safe-area-inset-right));padding-bottom:max(60px,env(safe-area-inset-bottom));padding-top:max(20px,env(safe-area-inset-top))}button{font-family:inherit}.topbar{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:14px}.back{color:var(--muted);text-decoration:none;font-size:.95rem;padding:8px 12px;border-radius:10px;border:1px solid var(--line);transition:background .15s}@media(hover:hover){.back:hover{background:var(--bg-soft)}}.title{font-size:1.4rem;font-weight:900;margin:0}.icon-btn{background:var(--bg-soft);border:1px solid var(--line);color:var(--text);width:42px;height:42px;border-radius:10px;font-size:1.1rem;cursor:pointer}.controls{display:flex;justify-content:center;margin-bottom:14px}.toggle{display:inline-flex;background:var(--bg-soft);border:1px solid var(--line);border-radius:12px;padding:4px;gap:4px}.toggle button{border:none;background:transparent;color:var(--muted);font-weight:700;font-size:.9rem;padding:8px 16px;border-radius:9px;cursor:pointer;transition:background .15s,color .15s}.toggle button.active{background:var(--accent);color:#10131c}.toggle.locked{opacity:.45;pointer-events:none}.hud{display:flex;gap:10px;justify-content:center;margin-bottom:18px;flex-wrap:wrap}.pill{background:var(--bg-soft);border:1px solid var(--line);border-radius:12px;padding:8px 16px;text-align:center;min-width:90px}.pill .k{display:block;font-size:.64rem;text-transform:uppercase;letter-spacing:1px;color:var(--muted)}.pill .v{font-size:1.4rem;font-weight:800}.stage{background:var(--bg-card);border:1px solid var(--line);border-radius:var(--radius);min-height:160px;display:grid;place-items:center;margin-bottom:18px;padding:20px}.digit{font-size:5rem;font-weight:900;font-variant-numeric:tabular-nums}.digit.show{animation:pop .18s ease}@keyframes pop{0%{transform:scale(.6);opacity:0}to{transform:scale(1);opacity:1}}.stage .msg{font-size:1.2rem;color:var(--muted);text-align:center}.stage .entry{font-size:2.4rem;font-weight:800;letter-spacing:.3em;font-variant-numeric:tabular-nums;min-height:1.2em}.stage .entry.bad{color:var(--bad);animation:shake .3s ease}@keyframes shake{0%,to{transform:translate(0)}25%{transform:translate(-8px)}75%{transform:translate(8px)}}.dots{display:flex;gap:8px;margin-top:12px}.dots .d{width:12px;height:12px;border-radius:50%;background:var(--line)}.dots .d.filled{background:var(--accent)}.keypad{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;max-width:340px;margin:0 auto}.key{border:1px solid var(--line);background:var(--bg-soft);color:var(--text);font-size:1.6rem;font-weight:800;padding:16px 0;border-radius:14px;cursor:pointer;transition:transform .06s,background .12s}@media(hover:hover){.key:hover{background:#262c40}}.key:active{transform:scale(.95)}.key.enter{background:var(--accent);color:#10131c}.keypad.locked{opacity:.4;pointer-events:none}.center{text-align:center}.hint{color:var(--muted);font-size:.9rem;margin-top:14px}.btn{border:none;background:var(--accent);color:#10131c;font-weight:800;font-size:1.05rem;padding:14px 30px;border-radius:12px;cursor:pointer;transition:transform .1s,filter .12s}@media(hover:hover){.btn:hover{filter:brightness(1.08)}}.btn:active{transform:scale(.97)}.btn.ghost{background:transparent;color:var(--text);border:1px solid var(--line)}.hidden{display:none!important}.overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#0a0c12d1;display:grid;place-items:center;padding:20px;overflow:auto;z-index:60;opacity:0;pointer-events:none;transition:opacity .2s}.overlay.show{opacity:1;pointer-events:auto}.modal{background:var(--bg-card);border:1px solid var(--line);border-radius:var(--radius);padding:30px;text-align:center;max-width:380px;width:100%;max-height:90vh;overflow:auto;box-shadow:var(--shadow);transform:translateY(10px) scale(.98);transition:transform .2s}.overlay.show .modal{transform:translateY(0) scale(1)}.modal h2{margin:0 0 4px;font-size:1.8rem}.modal .big{font-size:3rem;font-weight:900;margin:6px 0}.modal .sub{color:var(--muted);margin:0}.modal .seqline{font-variant-numeric:tabular-nums;letter-spacing:.2em;margin:10px 0 0}.modal .newbest{color:var(--accent);font-weight:800;margin:8px 0 0}.row{display:flex;gap:10px;margin-top:18px}.row .btn{flex:1}.toast{position:fixed;left:50%;bottom:28px;transform:translate(-50%) translateY(20px);background:var(--bg-card);border:1px solid var(--line);padding:12px 22px;border-radius:12px;font-weight:700;box-shadow:var(--shadow);opacity:0;transition:opacity .2s,transform .2s;pointer-events:none;z-index:70}.toast.show{opacity:1;transform:translate(-50%) translateY(0)}