:root{--bg:#2b1d42;--panel:#392655;--panel2:#4c3172;--text:#fffaf4;--muted:#beb2cc;--gold:#ffd166;--pink:#ff8ec3;--mint:#9df0d1;--line:rgba(255,255,255,.1)}.app{width:min(100%,900px);max-width:900px;padding:0 22px}.topic-grid{margin:0 auto 20px;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;max-width:720px}.topic-button{min-height:72px;padding:18px 14px;border:1px solid var(--line);border-radius:20px;color:white;background:rgba(57,38,85,.82);cursor:pointer;font-weight:800;display:grid;place-items:center;text-align:center}.topic-button.active{border-color:var(--gold);background:rgba(255,209,102,.16);color:var(--gold)}.question-card{max-width:760px;margin:0 auto 20px;padding:24px 22px;border-radius:24px}.answer-grid{margin:0 auto;max-width:760px;display:grid;grid-template-columns:1fr 1fr;gap:14px}@media(max-width:640px){.app{padding:0 16px}.topic-grid,.answer-grid{grid-template-columns:1fr}.topic-button{min-height:64px}.question-card{padding:20px}}@media(max-width:520px){.app{padding:0 12px}.topic-button{font-size:14px}}