:root{color-scheme:light;--ink:#172c46;--muted:#58677a;--blue:#0055b8;--line:#dce4ee;--green:#16704c}*{box-sizing:border-box}body{margin:0;background:#f3f6fa;color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;font-size:16px;line-height:1.55}button,a{-webkit-tap-highlight-color:transparent}button{font:inherit;cursor:pointer}a{color:inherit;text-decoration:none}button:focus-visible,a:focus-visible{outline:3px solid #0055b8;outline-offset:4px}[hidden]{display:none!important}.site-header{background:#fff;border-bottom:1px solid var(--line)}nav{max-width:1000px;margin:auto;display:flex;align-items:center;justify-content:space-between;padding:8px 20px;gap:12px}.brand{display:flex;align-items:center;gap:9px;font-weight:750}.back{font-size:14px;color:var(--muted)}nav a{min-height:44px;display:flex;align-items:center}main{max-width:760px;margin:auto;padding:26px 16px 0}.intro{margin:0 4px 24px}.eyebrow{font-size:11px;font-weight:800;letter-spacing:1.8px;color:var(--blue);margin:0 0 10px}h1{font-size:32px;line-height:1.12;letter-spacing:-1px;margin:0 0 12px}p{margin:0}.intro>p:last-child{color:var(--muted);max-width:430px;font-size:15px}.quiz{background:#fff;border:1px solid var(--line);border-radius:18px;padding:22px 18px;box-shadow:0 6px 24px #172c4606}.progress-meta{display:flex;justify-content:space-between;gap:12px;font-size:13px;font-weight:650}.progress-meta span:last-child{color:var(--muted)}progress{display:block;appearance:none;border:0;width:100%;height:5px;border-radius:10px;overflow:hidden;background:#e9eef5;margin:12px 0 24px}progress::-webkit-progress-bar{background:#e9eef5}progress::-webkit-progress-value{background:var(--blue)}progress::-moz-progress-bar{background:var(--blue)}h2{font-size:21px;line-height:1.4;letter-spacing:-.35px;margin:0 0 10px}#question{scroll-margin-top:20px}#question:focus,#result-title:focus{outline:none}.hint{font-size:13px;color:var(--muted);margin-bottom:16px}.answers{display:grid;gap:10px}.answer{width:100%;display:flex;align-items:center;gap:12px;text-align:left;min-height:58px;padding:13px 14px;background:white;border:1px solid #cdd8e5;border-radius:10px;color:var(--ink);line-height:1.45;font-size:16px}.letter{display:flex;align-items:center;justify-content:center;width:28px;height:28px;flex-shrink:0;border:1px solid #d8e2ed;border-radius:7px;font-size:12px;font-weight:750;color:var(--muted);background:#f6f8fb}.answer:disabled{cursor:default;opacity:1}.answer.correct{border-color:#30926b;background:#eef8f2}.answer.correct .letter{background:var(--green);border-color:var(--green);color:white}.answer.incorrect{border-color:#c67564;background:#fff5f2}.answer.incorrect .letter{background:#a74431;border-color:#a74431;color:white}.answer-label{flex:1}.answer-state{display:block;font-size:12px;font-weight:700;margin-top:4px}.feedback:empty{display:none}.feedback{margin-top:18px;padding:14px 16px;border-left:3px solid var(--blue);background:#f1f6fd;border-radius:0 8px 8px 0;font-size:14px}.feedback strong{display:block;margin-bottom:4px}.actions{border-top:1px solid #e7edf3;padding-top:18px;margin-top:22px;display:flex;flex-direction:column;gap:12px}.actions>span{font-size:12px;color:var(--muted);text-align:center}.primary,.secondary{border-radius:10px;min-height:50px;padding:12px 18px;font-size:15px;font-weight:700}.primary{background:var(--blue);color:white;border:1px solid var(--blue);display:flex;align-items:center;justify-content:center;gap:16px}.primary:disabled{background:#edf1f6;color:#69778a;border-color:#edf1f6;cursor:default}.secondary{background:white;color:var(--ink);border:1px solid #cdd8e5}.sample-note{text-align:center;font-size:12px;color:var(--muted);margin:16px 0 30px}.app-card{background:#102943;color:white;border-radius:16px;padding:24px}.app-card .eyebrow{color:#92c1ff}.app-card h2{font-size:22px}.app-card p:not(.eyebrow){font-size:14px;color:#d0dced}.app-card .price{margin-top:12px;font-weight:700}.store-links{display:grid;gap:10px;margin-top:20px}.store-links a{min-height:48px;display:flex;align-items:center;justify-content:space-between;border:1px solid #5c7087;border-radius:9px;padding:10px 14px;font-size:14px;font-weight:650}footer{display:flex;justify-content:center;gap:24px;padding:24px 16px;color:var(--muted);font-size:13px}footer a{min-height:44px;display:flex;align-items:center}.result-score{font-size:64px;line-height:1.2;letter-spacing:-3px;font-weight:800;margin:20px 0 12px;color:var(--blue)}#result-message{color:var(--muted)}.result-actions{display:grid;gap:10px;margin-top:24px}.review-item{border-top:1px solid var(--line);padding-top:20px;margin-top:20px}.review-item h3{font-size:16px;margin:0 0 10px}.review-item p{font-size:14px;margin:6px 0;color:var(--muted)}.review-item .right{color:var(--green)}@media(hover:hover){.answer:not(:disabled):hover{border-color:var(--blue);background:#f2f7fd}.primary:not(:disabled):hover{background:#00428e}.store-links a:hover{background:#223d58}}@media(min-width:600px){main{padding:40px 24px 0}.intro{margin-bottom:30px}h1{font-size:42px}.quiz{padding:30px}h2{font-size:24px}.actions{flex-direction:row;align-items:center;justify-content:space-between}.actions .primary{min-width:200px}.app-card{padding:30px;display:grid;grid-template-columns:1fr 200px;gap:24px;align-items:center}.store-links{margin:0}.result-actions{grid-template-columns:1fr 1fr}}@media(prefers-reduced-motion:no-preference){button,a{transition:background-color .15s,border-color .15s}}