:root{--navy:#06102a;--indigo:#4f46e5;--green:#16a34a;--red:#dc2626;--amber:#fbbf24;--orange:#f97316;--border:#e2e8f0;--muted:#64748b;--text:#0f172a;--white:#fff;--r:10px}.guest-banner{background:linear-gradient(90deg,#7c3aed,#4f46e5);color:#fff;text-align:center;padding:8px 16px;font-size:13px;font-weight:600}.guest-banner a{color:#fbbf24;margin-left:8px;font-weight:700}.qb-topbar{display:flex;align-items:center;justify-content:space-between;background:var(--navy);color:#fff;padding:10px 20px;gap:12px;flex-wrap:wrap;position:sticky;top:0;z-index:100;box-shadow:0 2px 12px rgba(0,0,0,.3)}.qb-title{font-size:15px;font-weight:700;flex:1;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.lang-toggle{display:flex;border:1.5px solid rgba(255,255,255,.2);border-radius:8px;overflow:hidden;gap:0}.lang-btn{padding:5px 14px;font-size:12px;font-weight:700;cursor:pointer;border:none;background:0 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var(--border);border-radius:8px;cursor:pointer;transition:.15s;font-size:14px;position:relative;background:#fafbff}.opt-label:hover{border-color:var(--indigo);background:#eef2ff}.opt-label input[type=radio]{position:absolute;opacity:0;pointer-events:none;width:0;height:0}.opt-bubble{width:28px;height:28px;border-radius:6px;border:2px solid var(--border);display:flex;align-items:center;justify-content:center;font-size:12px;font-weight:800;color:var(--muted);flex-shrink:0;transition:.15s}.opt-texts{display:flex;flex-direction:column;gap:3px;flex:1}.opt-text-en{color:var(--text)}.opt-text-hi{font-family:'Noto Sans Devanagari',sans-serif;font-size:12.5px;color:var(--muted);border-top:1px dashed var(--border);padding-top:3px}.opt-label.selected{border-color:var(--indigo);background:#eef2ff}.opt-label.selected .opt-bubble{background:var(--indigo);border-color:var(--indigo);color:#fff}.opt-label.correct{border-color:#86efac!important;background:#f0fdf4!important}.opt-label.correct 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18px;border-radius:8px;font-size:13px;font-weight:700;cursor:pointer;border:none;transition:.15s;display:inline-flex;align-items:center;gap:6px}.btn-prev{background:#f1f5f9;color:#334155}.btn-prev:hover{background:#e2e8f0}.btn-next{background:var(--indigo);color:#fff;margin-left:auto}.btn-next:hover{background:#4338ca}.btn-skip{background:#fef9ec;color:#92400e;border:1px solid #fde68a}.btn-review{background:#ede9fe;color:#5b21b6}.btn-submit-final{background:var(--green);color:#fff;margin-left:auto}.btn-submit-final:hover{background:#15803d}.qb-sidebar{background:#fff;border-radius:var(--r);border:1px solid var(--border);padding:16px;position:sticky;top:56px}@media(max-width:860px){.qb-sidebar{position:static}}.qb-palette h3{font-size:13px;font-weight:700;color:var(--muted);text-transform:uppercase;letter-spacing:.5px;margin:0 0 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