:root{font-family:system-ui,-apple-system,'Segoe UI',sans-serif;color:#192b32;background:#fff;font-size:16px}*{box-sizing:border-box}body{margin:0}main{max-width:1180px;margin:auto;padding:28px 32px}nav{display:flex;gap:24px;flex-wrap:wrap;border-bottom:1px solid #dce3e7;padding-bottom:22px}a{color:#17634f;text-decoration:none}nav a[aria-current]{font-weight:700;border-bottom:2px solid #17634f}h1{font-size:30px;margin:32px 0 10px}h2{font-size:21px}h3{font-size:18px;line-height:1.7}p{line-height:1.7}button{font:inherit;cursor:pointer;background:white;color:inherit;border:1px solid #cad4d9;border-radius:6px;padding:11px 16px}button:hover{background:#f1f6f4}button:focus-visible,a:focus-visible{outline:3px solid #226cb3;outline-offset:3px}button:disabled{opacity:.55;cursor:default}.picker,.actions{display:flex;gap:10px;flex-wrap:wrap}.picker button.active,.primary{background:#17634f;color:white;border-color:#17634f}#storage,#intro,#legend{color:#57666e;font-size:14px}.heading{display:flex;justify-content:space-between;align-items:center;gap:16px;border-top:1px solid #dce3e7;margin-top:24px;padding-top:16px}.layout{display:grid;grid-template-columns:minmax(0,1fr) 258px;gap:42px}audio{width:100%;margin-top:16px}#question-image{display:block;max-width:100%;max-height:360px;object-fit:contain;margin:20px auto}#question-image[hidden],[hidden]{display:none!important}#options{display:grid;gap:12px;margin:26px 0}#options button{text-align:left;min-height:58px;display:flex;align-items:center;gap:18px;line-height:1.6}#options b{border:1px solid currentColor;border-radius:50%;min-width:32px;height:32px;display:grid;place-items:center}button.selected{border:2px solid #226cb3;background:#edf5fd}button.correct{border-color:#17634f;background:#e8f5ef;color:#14583e}button.wrong{border-color:#a42d2d;background:#fff0ef;color:#962424}#numbers{display:grid;grid-template-columns:repeat(6,1fr);gap:6px}#numbers button{padding:9px 0;font-size:14px}#numbers button.current{outline:2px solid #192b32;outline-offset:1px}#numbers button.answered{background:#e4effc;color:#1e5489}#numbers button.correct{background:#e2f3e9}#numbers button.wrong,#numbers button.unanswered{background:#fff0ef}#feedback{min-height:28px}#answer,#results{border-top:1px solid #dce3e7;margin-top:26px;padding-top:18px}#transcript{white-space:pre-line}#progress{font-size:14px}#audio-error{color:#a42d2d}@media(max-width:760px){main{padding:20px 18px}.layout{grid-template-columns:1fr;gap:24px}#numbers{grid-template-columns:repeat(8,1fr)}.heading{align-items:flex-start}nav{gap:16px}h1{font-size:26px}}