:root{--bg:#0f172a;--card:#1e293b;--accent:#38bdf8;--ok:#22c55e;--ko:#ef4444;--txt:#f1f5f9;--mut:#94a3b8}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--txt);font-family:system-ui,sans-serif}main{max-width:520px;margin:0 auto;padding:16px}h1{text-align:center;margin:8px 0 16px}.card{background:var(--card);border-radius:16px;padding:18px;margin-bottom:14px}input{padding:12px;border-radius:10px;border:1px solid #334155;background:var(--bg);color:var(--txt);margin-bottom:10px}button,input{width:100%;font-size:16px}button{padding:14px;border:0;border-radius:10px;background:var(--accent);color:#0f172a;font-weight:700;cursor:pointer}button:disabled{opacity:.6}button.ghost{background:transparent;color:var(--mut);margin-top:8px}.scene{height:240px;border-radius:12px;background:radial-gradient(#1e3a5f,#0f172a);overflow:hidden}.opts{display:grid;grid-gap:10px;gap:10px;margin:14px 0}.opts button{background:#334155;color:var(--txt)}.opts button.ok{background:var(--ok);color:#052e16}.opts button.ko{background:var(--ko)}.bar{display:flex;justify-content:space-between;color:var(--mut);margin-bottom:10px}.time{height:6px;background:#334155;border-radius:3px;overflow:hidden;margin-bottom:12px}.time div{height:100%;background:var(--accent);transition:width 1s linear}.big{font-size:48px;font-weight:800;color:var(--accent);margin:8px 0}.big,.res{text-align:center}.res{font-weight:700;margin-top:10px}.row{display:flex;gap:10px;padding:8px 0;border-bottom:1px solid #334155;align-items:center}.row:last-child{border:0}.row b{min-width:28px}.row span{flex:1 1}.me{color:var(--accent)}.err{color:var(--ko);margin:0 0 8px}