:root{--navy:#172554;--yellow:#FFD43B;--ink:#111827}*{box-sizing:border-box}body{margin:0;background:#f6f7fa;color:var(--ink);font-family:Arial,sans-serif;line-height:1.6}header{max-width:1100px;margin:auto;padding:24px;display:flex;justify-content:space-between;align-items:center}.brand{font-size:30px;font-weight:900;color:var(--navy);text-decoration:none;letter-spacing:-1px}.brand span{color:#bd9200}.tag,.eyebrow{font-size:11px;font-weight:bold;letter-spacing:1.7px}main{max-width:1040px;margin:25px auto;padding:0 24px}h1{font-size:clamp(36px,6vw,62px);line-height:1.08;letter-spacing:-2px;margin:22px 0}h2{font-size:25px;line-height:1.35;margin:18px 0}h3{line-height:1.4}p{margin:12px 0}.hero{background:var(--navy);color:white;border-radius:24px;padding:48px;position:relative}.hero .eyebrow{color:var(--yellow)}.hero p{max-width:560px;color:#e0e5f2}.stats{display:flex;gap:38px;margin:28px 0}.stats strong{display:block;font-size:27px;color:var(--yellow)}.stats span{font-size:12px}.button,button{font:inherit;cursor:pointer;border:0;border-radius:12px;padding:13px 24px;font-weight:700;background:var(--yellow);color:var(--navy)}button:hover{filter:brightness(.96)}button:focus-visible,a:focus-visible{outline:3px solid #2563eb;outline-offset:4px}button:disabled{opacity:.4;cursor:default}.secondary{background:#edf0f6}.dark{background:var(--navy);color:white}.info{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:22px}.tile,.card{padding:26px;background:white;border:1px solid #e4e7ef;border-radius:18px}.tile b{color:var(--navy)}.muted{color:#596377;font-size:13px}.topline{display:flex;justify-content:space-between;align-items:center;gap:16px;margin-bottom:20px}.timer{font-variant-numeric:tabular-nums;background:var(--navy);color:white;padding:10px 18px;border-radius:12px;font-weight:bold;white-space:nowrap}.low{background:#991b1b}.layout{display:grid;grid-template-columns:1fr 240px;gap:22px}.options{display:grid;gap:12px;margin:26px 0}.option{display:flex;align-items:center;text-align:left;gap:15px;border:2px solid #e4e7ef;background:white;width:100%;font-weight:400;color:var(--ink)}.option.selected{border-color:var(--navy);background:#fff9de}.letter{background:#edf0f6;border-radius:8px;padding:4px 11px;font-weight:bold}.selected .letter{background:var(--yellow)}.navigation{display:flex;justify-content:space-between;gap:10px}.grid{display:grid;grid-template-columns:repeat(5,1fr);gap:7px;margin:18px 0}.grid button{padding:7px 0;font-size:12px;border-radius:7px;background:#edf0f6}.grid .answered{background:var(--navy);color:white}.grid .current{outline:3px solid var(--yellow)}progress{width:100%;height:7px;accent-color:var(--navy)}.score{font-size:68px;font-weight:bold;letter-spacing:-3px}.score small{font-size:22px;color:#dce2ef;letter-spacing:0}.review{margin-top:16px;border-left:5px solid #172554}.review.wrong{border-left-color:#d97706}.pill{font-size:12px;padding:4px 10px;background:#eef1f7;border-radius:20px}.result-actions{display:flex;gap:10px;flex-wrap:wrap;margin:24px 0}details{margin:15px 0}summary{cursor:pointer;color:var(--navy);font-weight:bold}.modal{position:fixed;inset:0;background:#17255499;display:grid;place-items:center;padding:24px;z-index:4}.modal .card{max-width:460px}footer{text-align:center;font-size:11px;color:#667085;margin:40px 20px}.warn{background:#fff3c5;border-radius:10px;padding:12px;font-size:13px}@media(max-width:700px){header{padding:18px}.tag{font-size:8px;letter-spacing:1px}main{padding:0 16px;margin-top:12px}.hero{padding:28px}.info{grid-template-columns:1fr}.layout{grid-template-columns:1fr}.stats{gap:25px}.card{padding:20px}.topline{font-size:12px}.grid{grid-template-columns:repeat(10,1fr)}.navigation button{padding:12px 17px}h2{font-size:22px}}@media print{header,footer,.result-actions,summary{display:none}.hero{color:black;background:white}.hero p{color:black}.score small{color:black}.card{break-inside:avoid}details{display:block}}

.prototype-banner{background:#FFD43B;color:#172554;text-align:center;padding:10px 20px;font-size:14px;font-weight:800;letter-spacing:.5px}