:root{--bg: #0e1410;--panel: #18211b;--line: #2a352d;--ink: #eef7f0;--dim: #93b3a0;--accent: #5a9c6a;--good: #5ad07e;--bad: #e2607a;--warn: #e0b85a}*{box-sizing:border-box}html,body{margin:0;height:100%}body{background:radial-gradient(900px 560px at 50% -8%,#16261b,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:26px;letter-spacing:5px;font-weight:800;color:var(--accent)}.sub{margin:4px 0 0;color:var(--dim);font-size:13px;line-height:1.4}.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:#06201b}.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:#06201b;border-color:var(--accent)}.scoreboard{display:flex;gap:10px;justify-content:center;margin:8px 0}.readout{background:#0a100c;border:1px solid var(--line);border-radius:8px;padding:5px 14px;font:800 18px ui-monospace,monospace;color:var(--accent);min-width:88px;text-align:center}.readout span{color:var(--dim);font-size:11px;display:block;font-weight:600;letter-spacing:.5px}.bill{background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:14px 16px;margin:6px 0 12px}.billtitle{font-size:19px;font-weight:800;color:var(--ink)}.billsum{color:var(--dim);font-size:13px;margin:4px 0 10px;line-height:1.45}.stagebar{font-size:13px;color:var(--dim);margin-bottom:8px}.stagebar b{color:var(--accent)}.supportbar{height:10px;background:#0a100c;border:1px solid var(--line);border-radius:999px;overflow:hidden}.supportfill{height:100%;background:linear-gradient(90deg,var(--bad),var(--warn) 45%,var(--good));transition:width .2s}.lesson{color:#bfe0cc;font-size:12.5px;margin-top:10px;line-height:1.45}.branches{display:grid;grid-template-columns:1fr;gap:8px}.branch{background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:10px 12px;opacity:.65;transition:opacity .15s,border-color .15s}.branch.active{opacity:1;border-color:var(--accent);box-shadow:0 0 0 1px var(--accent) inset}.brname{font-weight:800;font-size:15px;color:var(--accent)}.brblurb{color:var(--dim);font-size:12px;margin:2px 0 8px}.acts{display:flex;flex-wrap:wrap;gap:6px}.act{background:#0e1611;border:1px solid var(--line);color:var(--ink);padding:8px 12px;border-radius:8px;font:700 12.5px system-ui;cursor:pointer}.act:hover:not(:disabled){border-color:var(--accent);background:#15211a}.act:disabled{opacity:.3;cursor:not-allowed}.stage{position:relative;margin-top:12px}.log{background:#0a100c;border:1px solid var(--line);border-radius:10px;padding:10px 12px;max-height:150px;overflow-y:auto;font-size:13px;line-height:1.5}.logline{color:var(--dim);padding:2px 0;border-bottom:1px solid rgba(255,255,255,.03)}.logline:last-child{color:var(--ink)}.logline.warn{color:var(--warn)}.overlay{position:absolute;inset:-4px;display:flex;align-items:center;justify-content:center;background:#060c08d9;border-radius:10px;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:24px}.card h2.good{color:var(--good)}.card h2.bad{color:var(--bad)}.card p{margin:8px 0;color:var(--dim);font-size:14px;line-height:1.45}.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}