/* Starvard Certification quiz styles. Navy, gold, ivory. Fast, no frameworks. */
:root{
  --ivory:#faf7f0; --paper:#ffffff; --navy:#16233f; --navy-deep:#0e1830;
  --gold:#b58520; --gold-soft:#e8d9b0; --ink:#2a2f3a; --muted:#6b7280;
  --line:#e7e0d2; --green:#1d7a3a; --red:#b3261e;
  --serif:Georgia,"Palatino Linotype","Book Antiqua","Times New Roman",serif;
  --sans:-apple-system,BlinkMacSystemFont,"Segoe UI",Helvetica,Arial,sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box}
body{font-family:var(--sans);background:var(--ivory);color:var(--ink);line-height:1.7;-webkit-font-smoothing:antialiased}
.wrap{max-width:680px;margin:0 auto;padding:0 24px}
.topbar{background:var(--navy-deep);color:#fff;padding:14px 0}
.topbar .wrap{display:flex;align-items:center;gap:12px}
.topbar img{width:38px;height:38px;object-fit:contain}
.topbar .t{font-family:var(--serif);font-size:19px;letter-spacing:.04em}
.topbar .t small{display:block;font-family:var(--sans);font-size:11px;letter-spacing:.28em;text-transform:uppercase;color:var(--gold-soft);font-weight:400}
.topbar a{color:#fff;text-decoration:none}
main{padding:44px 0 80px}
.kicker{font-size:12px;letter-spacing:.3em;text-transform:uppercase;color:var(--gold);margin-bottom:10px;font-weight:600}
h1{font-family:var(--serif);font-size:clamp(30px,5vw,42px);font-weight:400;letter-spacing:.02em;color:var(--navy);margin-bottom:10px;line-height:1.15}
.lede{color:var(--muted);font-size:18px;margin-bottom:28px}
.card{background:var(--paper);border:1px solid var(--line);border-radius:12px;padding:28px;margin-bottom:20px}
.progress{height:8px;background:var(--line);border-radius:99px;overflow:hidden;margin-bottom:22px}
.progress i{display:block;height:100%;background:var(--gold);border-radius:99px;transition:width .3s ease}
.qnum{font-size:12px;letter-spacing:.24em;text-transform:uppercase;color:var(--muted);margin-bottom:8px}
.qtext{font-family:var(--serif);font-size:22px;color:var(--navy);margin-bottom:20px;line-height:1.4}
.opt{display:block;width:100%;text-align:left;background:var(--ivory);border:2px solid var(--line);border-radius:10px;padding:14px 18px;margin-bottom:12px;font-size:17px;font-family:var(--sans);color:var(--ink);cursor:pointer;transition:border-color .15s,background .15s}
.opt:hover{border-color:var(--gold);background:#fff}
.opt.picked{border-color:var(--navy);background:#fff}
.opt.correct{border-color:var(--green);background:#f0faf3}
.opt.wrong{border-color:var(--red);background:#fdf1f0}
.opt:disabled{cursor:default}
.explain{display:none;background:#f4f1e8;border-left:4px solid var(--gold);border-radius:0 8px 8px 0;padding:14px 18px;margin:4px 0 18px;font-size:16px;color:var(--ink)}
.explain.show{display:block}
.btn{display:inline-block;background:var(--navy);color:#fff;border:none;border-radius:10px;padding:15px 34px;font-size:17px;font-family:var(--sans);font-weight:600;cursor:pointer;text-decoration:none;transition:background .15s}
.btn:hover{background:var(--navy-deep)}
.btn.gold{background:var(--gold)}
.btn.gold:hover{background:#9a7018}
.btnrow{margin-top:22px;display:flex;gap:12px;flex-wrap:wrap}
.score-ring{width:150px;height:150px;border-radius:50%;margin:6px auto 20px;display:flex;flex-direction:column;align-items:center;justify-content:center;border:10px solid var(--line)}
.score-ring b{font-family:var(--serif);font-size:42px;color:var(--navy);line-height:1}
.score-ring span{font-size:12px;letter-spacing:.2em;text-transform:uppercase;color:var(--muted)}
.score-ring.pass{border-color:var(--gold)}
.field{margin-bottom:18px}
.field label{display:block;font-size:13px;letter-spacing:.14em;text-transform:uppercase;color:var(--muted);margin-bottom:8px;font-weight:600}
.field input{width:100%;border:2px solid var(--line);border-radius:10px;padding:14px 16px;font-size:18px;font-family:var(--sans);color:var(--ink);background:#fff}
.field input:focus{outline:none;border-color:var(--gold)}
.note{font-size:14px;color:var(--muted);margin-top:14px}
.center{text-align:center}
.seal{width:84px;height:84px;object-fit:contain;margin-bottom:14px}
hr.rule{border:none;border-top:1px solid var(--line);margin:26px 0}
.steps{list-style:none;margin:0 0 8px}
.steps li{padding:10px 0 10px 34px;position:relative;font-size:16px}
.steps li::before{content:attr(data-n);position:absolute;left:0;top:10px;width:24px;height:24px;border-radius:50%;background:var(--navy);color:#fff;font-size:13px;font-weight:700;display:flex;align-items:center;justify-content:center}
footer{border-top:1px solid var(--line);padding:28px 0 40px;color:var(--muted);font-size:14px;text-align:center}
footer a{color:var(--navy)}
@media(max-width:560px){
  .card{padding:20px}
  .qtext{font-size:19px}
  .opt{font-size:16px;padding:12px 14px}
}