:root{
  --ink:#17172b; --muted:#66667d; --paper:#fffdf7; --card:#ffffff;
  --accent:#6d4aff; --accent2:#00a985; --warm:#ffb22e; --bad:#c83c54;
  --line:#dedbe9; --shadow:0 18px 55px rgba(34,26,74,.13);
}
*{box-sizing:border-box}
body{
  margin:0; min-height:100vh; color:var(--ink);
  font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  background:
    radial-gradient(circle at 15% 10%,rgba(109,74,255,.13),transparent 28rem),
    radial-gradient(circle at 90% 80%,rgba(0,169,133,.12),transparent 24rem),
    linear-gradient(135deg,#fff9e9,#f7f5ff 55%,#eefcf8);
}
button{font:inherit}
.shell{width:min(860px,calc(100% - 28px));margin:0 auto;padding:38px 0 28px}
.panel{
  position:relative; overflow:hidden; background:rgba(255,255,255,.94);
  border:1px solid rgba(90,75,145,.16); border-radius:28px;
  padding:clamp(24px,5vw,52px); box-shadow:var(--shadow);
}
.hidden{display:none!important}
.hero{text-align:center;padding-top:58px}
.hero::after{
  content:""; position:absolute; width:230px; height:230px; right:-90px; bottom:-110px;
  border-radius:50%; background:rgba(255,178,46,.18);
}
.hero-mark{
  width:92px;height:92px;border-radius:26px;display:grid;place-items:center;margin:8px auto 22px;
  font-size:58px;font-weight:900;color:white;transform:rotate(-4deg);
  background:linear-gradient(145deg,var(--accent),#9d76ff);box-shadow:0 12px 28px rgba(109,74,255,.28);
}
.eyebrow{font-size:.77rem;font-weight:900;letter-spacing:.14em;color:var(--accent);text-transform:uppercase}
h1{font-size:clamp(2.3rem,7vw,4.8rem);line-height:.95;margin:12px auto 20px;max-width:720px;letter-spacing:-.05em}
h2{font-size:clamp(1.45rem,4vw,2.25rem);line-height:1.15;margin:28px 0 24px;letter-spacing:-.025em}
.lede{font-size:clamp(1.05rem,2.5vw,1.28rem);line-height:1.6;color:#3f3f57;max-width:690px;margin:0 auto 14px}
.fine{color:var(--muted);line-height:1.55;max-width:660px;margin:0 auto 28px}
.primary,.secondary{
  border:0;border-radius:999px;padding:14px 24px;font-weight:850;cursor:pointer;
  transition:transform .15s ease,box-shadow .15s ease,opacity .15s ease;
}
.primary{background:var(--ink);color:white;box-shadow:0 8px 20px rgba(23,23,43,.18)}
.secondary{background:#efedf8;color:var(--ink)}
.primary:hover,.secondary:hover{transform:translateY(-1px)}
.quiz-head{display:flex;align-items:flex-start;justify-content:space-between;gap:20px}
.progress-text,.score-live{margin-top:5px;color:var(--muted);font-weight:700}
.progress-track{height:10px;background:#ece9f4;border-radius:999px;overflow:hidden;margin:20px 0 10px}
.progress-bar{height:100%;width:0;background:linear-gradient(90deg,var(--accent),var(--accent2));transition:width .25s ease}
.answers{display:grid;gap:12px}
.answer{
  width:100%;text-align:left;border:2px solid var(--line);border-radius:18px;padding:16px 18px;
  background:#fff;color:var(--ink);font-weight:750;cursor:pointer;transition:.15s ease;
}
.answer:hover:not(:disabled){border-color:#9f94d8;transform:translateY(-1px)}
.answer:disabled{cursor:default}
.answer.correct{border-color:var(--accent2);background:#eafaf5}
.answer.wrong{border-color:var(--bad);background:#fff0f3}
.feedback{margin:22px 0 18px;padding:18px 20px;border-radius:18px;background:#f6f4fb;line-height:1.55}
.feedback strong{display:block;margin-bottom:5px}
.result{text-align:center}
.score-big{
  width:160px;height:160px;border-radius:50%;display:grid;place-items:center;margin:20px auto;
  font-size:3rem;font-weight:950;background:linear-gradient(145deg,#efeaff,#e5fbf4);
  border:8px solid white;outline:3px solid #dcd6f6;box-shadow:0 12px 30px rgba(65,47,125,.12);
}
.breakdown{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin:28px 0;text-align:left}
.breakdown-card{padding:15px 16px;border:1px solid var(--line);border-radius:16px;background:#faf9fd}
.breakdown-card b{display:block;margin-bottom:5px}
.result-actions{display:flex;justify-content:center;gap:10px;flex-wrap:wrap}
.review{text-align:left;margin-top:28px;border-top:1px solid var(--line);padding-top:18px}
.review-item{padding:18px 0;border-bottom:1px solid var(--line)}
.review-item h3{font-size:1rem;margin:0 0 8px}
.review-item p{margin:5px 0;line-height:1.5;color:#4a4a60}
.review-ok{color:#087c62!important;font-weight:800}
.review-miss{color:#a72f45!important;font-weight:800}
.share-actions,.result-actions{display:flex;justify-content:center;gap:10px;flex-wrap:wrap}
.share-actions{margin-top:26px}
.result-actions{margin-top:10px}
.share-note{margin:13px auto 0;max-width:680px;color:var(--muted);font-size:.9rem;line-height:1.45}
.share-note.success{color:#087c62}
.share-note.warn{color:#9a5d10}
footer{text-align:center;color:var(--muted);font-size:.86rem;padding:18px 10px 0}
@media (max-width:620px){
  .shell{width:min(100% - 18px,860px);padding-top:14px}
  .panel{border-radius:22px;padding:24px 18px}
  .hero{padding-top:34px}
  .hero-mark{width:76px;height:76px;font-size:48px;border-radius:22px}
  .quiz-head{align-items:flex-end}
  .score-live{font-size:.9rem;text-align:right}
  .breakdown{grid-template-columns:1fr}
  .answer{padding:15px}
}
@media (prefers-reduced-motion:reduce){
  *{scroll-behavior:auto!important;transition:none!important}
}