:root{--bg: #0f1410;--panel: #1b241c;--line: #2e3b2f;--ink: #eef3ee;--dim: #9fb39f;--accent: #5a8c5a;--ok: #74d98a;--warn: #e6c14a;--bad: #e0654a}*{box-sizing:border-box}html,body{margin:0;height:100%}body{background:radial-gradient(900px 560px at 50% -8%,#16201a,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:600px;padding:12px 12px 26px}header{text-align:center;margin-bottom:6px}h1{margin:0;font-size:26px;letter-spacing:4px;font-weight:800;color:var(--accent)}.sub{margin:2px 0 0;color:var(--dim);font-size:13px}.bar{display:flex;gap:8px;justify-content:center;flex-wrap:wrap;align-items:center;margin:9px 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:#0d1a0d}.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:not(:disabled){border-color:var(--accent)}.btn:disabled{opacity:.4;cursor:not-allowed}.brief{text-align:center;background:var(--panel);border:1px solid var(--line);border-radius:10px;padding:8px 12px;font-size:13px;color:var(--dim);margin:6px 0}.brief b{color:var(--ink)}.status{text-align:center;min-height:20px;margin:8px 0;color:var(--dim);font-size:13px;font-weight:600}.status .ok{color:var(--ok)}.status .warn{color:var(--warn)}.status .bad{color:var(--bad)}.status b{color:var(--ink)}.stage{position:relative;display:flex;justify-content:center}canvas{width:100%;max-width:520px;height:auto;display:block;border-radius:8px;background:#0b100c;box-shadow:0 12px 34px #0000008c}.overlay{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;background:#080c08b8;border-radius:8px;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:360px}.card h2{margin:0 0 6px;font-size:22px;color:var(--accent)}.card p{margin:6px 0;color:var(--dim);font-size:14px;line-height:1.5}.card b{color:var(--ink)}.card .row{display:flex;gap:8px;justify-content:center;margin-top:14px}.builder{margin:4px 0}.ctl-label{font-size:11px;text-transform:uppercase;letter-spacing:1px;color:var(--dim);margin:10px 0 4px}.slots{display:flex;gap:6px;flex-wrap:wrap;justify-content:center}.slot{display:flex;flex-direction:column;align-items:center;min-width:52px;background:var(--panel);border:1px solid var(--line);color:var(--dim);border-radius:8px;padding:6px 8px;font:700 14px system-ui;cursor:pointer}.slot small{font:600 10px ui-monospace,monospace;color:var(--dim);margin-top:2px}.slot.filled{color:var(--ink)}.slot.sel{border-color:var(--accent);box-shadow:0 0 0 1px var(--accent) inset}.mats{display:grid;grid-template-columns:repeat(2,1fr);gap:6px}.mat{display:flex;align-items:center;gap:6px;background:var(--panel);border:1px solid var(--line);color:var(--ink);border-radius:8px;padding:8px 10px;font:700 13px system-ui;cursor:pointer;text-align:left}.mat small{margin-left:auto;font:600 10px ui-monospace,monospace;color:var(--dim)}.mat .swatch{width:12px;height:12px;border-radius:3px;background:var(--mc);flex:0 0 auto}.mat.sel{border-color:var(--accent);box-shadow:0 0 0 1px var(--accent) inset}.secs{display:flex;gap:6px;flex-wrap:wrap}.sec{flex:1;min-width:56px;background:var(--panel);border:1px solid var(--line);color:var(--ink);border-radius:8px;padding:8px;font:700 13px system-ui;cursor:pointer}.sec.sel{border-color:var(--accent);box-shadow:0 0 0 1px var(--accent) inset}.hint{text-align:center;color:var(--dim);font-size:12px;margin-top:12px;line-height:1.5}