:root{--bg: #0d1413;--panel: #16201e;--line: #283834;--ink: #eaf4f1;--dim: #8ba6a0;--accent: #4a9c8a;--accent2: #6fd0bb;--good: #2e6b4f;--bad: #5a2026;--prime: #c79a3a}*{box-sizing:border-box}html,body{margin:0;height:100%}body{background:radial-gradient(900px 560px at 50% -8%,#14211f,var(--bg));color:var(--ink);font-family:system-ui,-apple-system,Segoe UI,sans-serif;display:flex;justify-content:center;-webkit-user-select:none;user-select:none}#app{width:100%;max-width:560px;padding:12px 12px 34px}header{text-align:center;margin-bottom:6px}h1{margin:0;font-size:28px;letter-spacing:6px;font-weight:800;color:var(--accent)}.sub{margin:3px 0 0;color:var(--dim);font-size:13px}.digitbadge{color:var(--accent2);font-weight:800}.bar{display:flex;gap:8px;justify-content:center;flex-wrap:wrap;align-items:center;margin:10px 0}.seg{display:inline-flex;background:var(--panel);border:1px solid var(--line);border-radius:999px;overflow:hidden}.seg button{background:none;border:none;color:var(--dim);padding:6px 13px;font:600 13px system-ui;cursor:pointer}.seg button.active{background:var(--accent);color:#04211c}.btn{background:var(--panel);border:1px solid var(--line);color:var(--ink);padding:7px 14px;border-radius:999px;font:700 13px system-ui;cursor:pointer}.btn:hover{border-color:var(--accent)}.btn.primary{background:var(--accent);color:#04211c;border-color:var(--accent)}.scoreboard{display:flex;gap:10px;justify-content:center;margin:8px 0}.readout{background:#081110;border:1px solid var(--line);border-radius:8px;padding:5px 16px;font:800 18px ui-monospace,monospace;color:var(--accent2);min-width:84px;text-align:center}.readout span{color:var(--dim);font-size:11px;display:block;font-weight:600;letter-spacing:.5px}.targets{list-style:none;margin:10px 0 0;padding:0;display:flex;flex-direction:column;gap:8px}.tcard{background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:10px 12px}.tcard.solved{border-color:var(--good)}.tcard.sel{box-shadow:inset 0 0 0 2px var(--accent)}.tcard .thead{display:flex;align-items:center;gap:8px;cursor:pointer}.tcard .goal{font:800 18px ui-monospace,monospace;color:var(--ink)}.tcard .tag{font-size:11px;font-weight:700;padding:2px 8px;border-radius:999px;background:#0e1917;color:var(--dim);border:1px solid var(--line)}.tcard .tag.mod{color:var(--accent2)}.tcard .tag.prime{color:var(--prime);border-color:#4a3a14}.tcard .status{margin-left:auto;font-size:12px;color:var(--dim)}.tcard.solved .status{color:var(--accent2)}.editor{margin-top:8px;display:none}.tcard.sel .editor{display:block}.editor .row{display:flex;gap:6px;align-items:center}.expr{flex:1;background:#081110;border:1px solid var(--line);border-radius:8px;color:var(--ink);font:700 16px ui-monospace,monospace;padding:9px 10px;min-height:40px}.editor .live{font:700 13px ui-monospace,monospace;color:var(--dim);margin-top:6px;min-height:18px}.editor .live.ok{color:var(--accent2)}.editor .live.err{color:#ff9aa6}.pad{display:grid;grid-template-columns:repeat(5,1fr);gap:6px;margin:8px 0 0}.pad button{background:var(--panel);border:1px solid var(--line);color:var(--ink);padding:11px 0;border-radius:8px;font:800 17px ui-monospace,monospace;cursor:pointer}.pad button:hover{border-color:var(--accent)}.pad button.dig{color:var(--accent2)}.pad button.act{color:var(--dim)}.editor .submit{display:flex;gap:6px;margin-top:8px}.editor .submit .btn{flex:1}.stage{position:relative}.overlay{position:fixed;inset:0;display:flex;align-items:center;justify-content:center;background:#060a09cc;backdrop-filter:blur(3px);z-index:10}.overlay.hidden{display:none}.card{background:var(--panel);border:1px solid var(--line);border-radius:16px;padding:22px 26px;text-align:center;max-width:340px}.card h2{margin:0 0 6px;font-size:24px;color:var(--accent2)}.card p{margin:6px 0;color:var(--dim);font-size:14px}.card .unlocked{color:var(--prime);font-weight:700}.card .row{display:flex;gap:8px;justify-content:center;margin-top:14px}.hint{text-align:center;color:var(--dim);font-size:12px;margin-top:14px;line-height:1.5}