:root{--bg: #0e1116;--panel: #181d25;--line: #2a323d;--ink: #eef3f7;--dim: #93a4b3;--accent: #c0843a;--accent2: #6cb7c9;--good: #4ec98a;--bad: #e0697a}*{box-sizing:border-box}html,body{margin:0;height:100%}body{background:radial-gradient(900px 560px at 50% -8%,#1c2230,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:540px;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: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:#1c1206}.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:#1c1206;border-color:var(--accent)}.btn.hidden{display:none}.scoreboard{display:flex;gap:10px;justify-content:center;margin:8px 0}.readout{background:#0a0e13;border:1px solid var(--line);border-radius:8px;padding:5px 16px;font:800 18px ui-monospace,monospace;color:var(--accent);min-width:84px;text-align:center}.readout span{color:var(--dim);font-size:11px;display:block;font-weight:600;letter-spacing:.5px}.stage{position:relative}.casecard{background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:12px 14px;margin-bottom:8px;text-align:center}.case-title{margin:0 0 4px;font-size:16px;color:var(--ink);font-weight:700}.case-blurb{margin:0;color:var(--dim);font-size:13px;line-height:1.4}.legend{display:flex;gap:16px;justify-content:center;margin:4px 0 6px;flex-wrap:wrap}.legtag{display:inline-flex;align-items:center;gap:6px;font-size:12px;color:var(--dim)}.legdot{width:14px;height:4px;border-radius:2px;display:inline-block}.legtag.linea .legdot{background:var(--accent)}.legtag.lineb .legdot{background:var(--accent2)}.chart{width:100%;max-width:440px;display:block;margin:0 auto;border:1px solid var(--line);border-radius:10px;background:#0a0e13}.choices{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin:12px 0}.choice{background:var(--panel);border:1px solid var(--line);border-radius:10px;padding:10px 12px;text-align:left;cursor:pointer;color:var(--ink);display:flex;flex-direction:column;gap:3px;transition:border-color .12s,background .12s}.choice:hover:not(:disabled){border-color:var(--accent)}.choice:disabled{cursor:default;opacity:.9}.choice-label{font-weight:800;font-size:14px}.choice-blurb{font-size:12px;color:var(--dim);line-height:1.3}.choice.right{border-color:var(--good);background:#13241b}.choice.right .choice-label{color:var(--good)}.choice.wrong{border-color:var(--bad);background:#271419}.choice.wrong .choice-label{color:var(--bad)}.reveal{background:#0a0e13;border:1px solid var(--line);border-radius:10px;padding:12px 14px;margin-bottom:10px}.reveal.hidden{display:none}.verdict{margin:0 0 6px;font-weight:800;font-size:14px}.verdict.good{color:var(--good)}.verdict.bad{color:var(--bad)}.why{margin:0;color:var(--dim);font-size:13px;line-height:1.45}.confound{margin:6px 0 0;color:var(--accent2);font-size:12px;font-weight:600}#nextbtn{display:block;margin:0 auto 4px}.overlay{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;background:#080c10d9;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:320px}.card h2{margin:0 0 6px;font-size:24px;color:var(--accent)}.card p{margin:6px 0;color:var(--dim);font-size:14px}.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:1.6}.hint b{color:var(--ink)}