:root{--bg: #f6f7fb;--bg2: #eef2ff;--card: rgba(255, 255, 255, .92);--text: #0f172a;--muted: #5b6472;--line: rgba(15, 23, 42, .08);--shadow: 0 16px 45px rgba(2, 6, 23, .08);--shadow2: 0 10px 24px rgba(2, 6, 23, .08);--brand: #2563eb;--brand2: #7c3aed;--radius: 18px;--radius2: 12px;--w: 920px;--ease: cubic-bezier(.22, 1, .36, 1);--mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;--sans: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji", "Segoe UI Emoji"}*{box-sizing:border-box}html,body{height:100%}body{margin:0;font-family:var(--sans);color:var(--text);background:radial-gradient(900px 600px at 15% 10%,rgba(37,99,235,.12),transparent 60%),radial-gradient(900px 600px at 85% 15%,rgba(124,58,237,.1),transparent 60%),linear-gradient(180deg,var(--bg),#ffffff 55%,var(--bg2))}.qp-shell{min-height:100vh;padding:34px 18px 52px;display:flex;flex-direction:column;align-items:center}.qp-topbar{width:100%;max-width:var(--w);display:flex;align-items:flex-start;justify-content:space-between;gap:18px;padding:8px 2px 10px}.qp-title{font-size:44px;font-weight:780;letter-spacing:-.02em;line-height:1.02;color:#0b1220}.qp-sub{margin-top:10px;color:#0f172ab3;line-height:1.45;max-width:680px}.qp-meta{display:flex;gap:10px;flex-wrap:wrap;justify-content:flex-end;padding-top:8px}.qp-pill{padding:8px 10px;border-radius:999px;font-size:12px;background:#0f172a0d;border:1px solid rgba(15,23,42,.08);color:#0f172acc}.qp-stage{width:100%;max-width:var(--w);margin-top:16px}.qp-card{background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow);border:1px solid rgba(15,23,42,.07);padding:28px 28px 26px;overflow:hidden;animation:qpIn .24s var(--ease) both;transform-origin:50% 20%}@keyframes qpIn{0%{opacity:0;transform:translateY(4px)}to{opacity:1;transform:translateY(0)}}.qp-foot{width:100%;max-width:var(--w);margin-top:14px;color:#0f172a73;font-size:12px;display:flex;justify-content:flex-end}.mono{font-family:var(--mono)}.question-block{padding:2px 2px 0}.question-prompt{font-size:20px;font-weight:750;letter-spacing:-.01em;margin:12px 0 10px;color:#0b1220}.question-help{color:var(--muted);line-height:1.5;margin:0 0 18px;max-width:760px}.small{font-size:12px;color:#64748b}.option{display:flex;align-items:flex-start;gap:12px;padding:14px;border-radius:var(--radius2);border:1px solid rgba(15,23,42,.1);background:#ffffffb3;cursor:pointer;transition:transform .14s var(--ease),border-color .14s var(--ease),box-shadow .14s var(--ease),background .14s var(--ease);margin-bottom:12px}.option:hover{transform:translateY(-1px);border-color:#2563eb4d;box-shadow:var(--shadow2)}.option.selected{border-color:#2563eb8c;background:#2563eb0f}.option input{margin-top:3px;transform:scale(1.08);accent-color:var(--brand)}.quiz-nav,.nav{display:flex;justify-content:space-between;align-items:center;gap:10px;margin-top:22px;padding-top:18px;border-top:1px solid var(--line)}button{border:1px solid rgba(15,23,42,.12);border-radius:12px;padding:10px 14px;font-weight:750;cursor:pointer;background:#fff;transition:transform .12s var(--ease),box-shadow .12s var(--ease),border-color .12s var(--ease)}button:hover{transform:translateY(-1px);box-shadow:var(--shadow2);border-color:#2563eb4d}button:disabled{opacity:.55;cursor:not-allowed;transform:none;box-shadow:none}button.primary{background:linear-gradient(135deg,var(--brand),var(--brand2));color:#fff;border:1px solid rgba(255,255,255,.25)}button.secondary{background:#f1f5f9}.likert{margin-top:18px}.likertLabels{display:flex;justify-content:space-between;gap:12px;align-items:baseline;margin-bottom:10px;color:#0f172ab3;font-size:13px}.likertTrack{display:grid;grid-auto-flow:column;grid-auto-columns:1fr;gap:0;padding:14px 14px 12px;border-radius:14px;border:1px solid rgba(15,23,42,.1);background:#ffffffb3;position:relative}.likertTrack:before{content:"";position:absolute;left:22px;right:22px;top:26px;height:2px;background:#0f172a1a;border-radius:999px}.likertPoint{display:flex;flex-direction:column;align-items:center;gap:8px;cursor:pointer;-webkit-user-select:none;user-select:none;position:relative;z-index:1}.likertPoint input{position:absolute;opacity:0;pointer-events:none}.likertDot{width:16px;height:16px;border-radius:999px;border:2px solid rgba(15,23,42,.28);background:#fff;transition:transform .12s var(--ease),border-color .12s var(--ease),background .12s var(--ease),box-shadow .12s var(--ease)}.likertDot.selected{border-color:#2563ebcc;background:#2563eb1f;box-shadow:0 0 0 6px #2563eb1a;transform:translateY(-1px)}.likertPoint:hover .likertDot{border-color:#2563eb73}.likertNum{font-size:12px;font-weight:750;color:#0f172ab3}.matrix{display:grid;gap:16px}.matrixRow{display:grid;grid-template-columns:minmax(220px,1.2fr) 2fr;gap:14px;align-items:center}.matrixName{font-weight:650;color:#0f172ad9}@media(max-width:860px){.qp-title{font-size:34px}.qp-card{padding:20px 18px}.matrixRow{grid-template-columns:1fr;align-items:stretch}}