:root{--bg: #0e1116;--panel: #181d25;--line: #2a323d;--ink: #eef3f7;--dim: #93a4b3;--accent: #6a9a3a;--accent2: #a7e06a;--slot: #222c36;--match: #2a4a1e}*{box-sizing:border-box}html,body{margin:0;height:100%}body{background:radial-gradient(900px 560px at 50% -8%,#1a2418,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 26px}header{text-align:center;margin-bottom:6px}h1{margin:0;font-size:28px;letter-spacing:6px;font-weight:800;color:var(--accent2)}.sub{margin:3px 0 0;color:var(--dim);font-size:13px}.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:#06150a}.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(--accent2)}.btn.primary{background:var(--accent);color:#06150a;border-color:var(--accent)}.scoreboard{display:flex;gap:10px;justify-content:center;margin:8px 0;flex-wrap:wrap}.readout{background:#0a0e08;border:1px solid var(--line);border-radius:8px;padding:5px 16px;font:800 18px ui-monospace,monospace;color:var(--accent2);min-width:86px;text-align:center}.readout span{color:var(--dim);font-size:11px;display:block;font-weight:600;letter-spacing:.5px}.stage{position:relative;margin:12px 0}.pipe{display:flex;align-items:stretch;gap:8px;background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:12px;flex-wrap:wrap}.pipe-input,.pipe-output{display:flex;flex-direction:column;align-items:center;justify-content:center;min-width:64px;background:#0a0e08;border:1px solid var(--line);border-radius:10px;padding:8px 10px}.pipe-input span,.pipe-output span{color:var(--dim);font-size:11px;font-weight:700;letter-spacing:1px}.pipe-input b,.pipe-output b{font:800 24px ui-monospace,monospace}.pipe-output.match{background:var(--match);border-color:var(--accent2)}.pipe-output.match b{color:var(--accent2)}.chain{display:flex;gap:6px;flex:1;flex-wrap:wrap;align-items:center;min-height:60px}.slot{display:flex;flex-direction:column;align-items:center;justify-content:center;background:var(--slot);border:1px solid var(--line);border-radius:10px;padding:6px 10px;color:var(--ink);cursor:pointer;min-width:64px}.slot:hover{border-color:#ff9aa6}.slot b{font:800 18px ui-monospace,monospace;color:var(--accent2)}.slot i{font-style:normal;font-size:12px;color:var(--dim)}.slot u{text-decoration:none;font:700 12px ui-monospace,monospace;color:var(--ink)}.slot.empty{color:var(--dim);cursor:default;font-size:13px;border-style:dashed}.slot.empty:hover{border-color:var(--line)}.machines{display:grid;grid-template-columns:repeat(auto-fit,minmax(96px,1fr));gap:8px;margin-top:6px}.machine{display:flex;flex-direction:column;align-items:center;gap:2px;background:var(--panel);border:1px solid var(--line);border-radius:10px;padding:10px 6px;color:var(--ink);cursor:pointer}.machine:hover:not(:disabled){border-color:var(--accent2)}.machine:disabled{opacity:.35;cursor:not-allowed}.machine b{font:800 20px ui-monospace,monospace;color:var(--accent2)}.machine span{font:700 13px ui-monospace,monospace;color:var(--dim)}.overlay{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;background:#080c08d1;border-radius:12px;backdrop-filter:blur(3px)}.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(--ink);font-size:14px;line-height:1.5}.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}.hint b{color:var(--accent2)}