:root{font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:#153047;background:#edf2f6;font-size:16px;line-height:1.55}*{box-sizing:border-box}body{margin:0}button,select{font:inherit}button,a{-webkit-tap-highlight-color:transparent}button{cursor:pointer}button:disabled{cursor:default;opacity:.45}header{background:#102e48;color:white;padding:22px max(24px,calc((100vw - 1080px)/2));display:flex;align-items:center;justify-content:space-between;gap:20px}.brand{color:white;text-decoration:none;font-weight:800;letter-spacing:.08em;font-size:15px;display:flex;align-items:center;gap:12px}.badge{border:2px solid #f4c644;border-radius:7px;padding:3px 7px;color:#f4c644;font-size:18px}.edition{font-size:14px;color:#c0d1de}main{max-width:1080px;margin:38px auto;padding:0 24px;min-height:60vh}h1{font-size:clamp(2rem,5vw,3rem);line-height:1.12;letter-spacing:-.045em;margin:8px 0 18px}h2{line-height:1.3;font-size:clamp(1.4rem,3vw,1.9rem);margin:12px 0 24px;letter-spacing:-.02em}h3{margin:0 0 8px}p{margin:10px 0 20px}.eyebrow{text-transform:uppercase;font-size:13px;font-weight:800;letter-spacing:.12em;color:#526b7e}.muted{color:#526879}.grid{display:grid;grid-template-columns:1.5fr 1fr;gap:24px;align-items:start}.card{background:white;border:1px solid #d5dfe6;border-radius:16px;padding:30px;box-shadow:0 6px 20px #17364b05}.primary{background:#153b5a;color:white;border:1px solid #153b5a;border-radius:9px;padding:13px 22px;font-weight:700}.primary:hover{background:#205374}.secondary{background:white;border:1px solid #aebfcc;color:#17364b;border-radius:9px;padding:12px 20px;font-weight:650}.secondary:hover{background:#edf3f8}.full{width:100%}.stats{display:flex;gap:28px;border-top:1px solid #dbe3e9;border-bottom:1px solid #dbe3e9;padding:20px 0;margin:28px 0}.stat strong{display:block;font-size:27px;line-height:1.2}.stat span{font-size:14px;color:#526879}.accent{border-top:5px solid #e8b72d}.mode{display:block;border:1px solid #cbd7e0;border-radius:10px;padding:15px;margin:10px 0;cursor:pointer}.mode:has(input:checked){background:#edf5fc;border:2px solid #235880;padding:14px}.mode input{accent-color:#153b5a;margin-right:8px}.mode small{display:block;color:#526879;margin:4px 0 0 26px;font-size:14px}.note{font-size:14px;color:#526879}.topline{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-bottom:14px}.pill{display:inline-block;background:#eaf0f6;color:#315570;border-radius:6px;padding:5px 9px;font-size:13px;font-weight:750}.progress{height:7px;border-radius:10px;background:#d4e0e9;overflow:hidden;margin:14px 0 26px}.progress span{height:100%;background:#dba900;display:block}.question{max-width:790px;margin:auto}.signbox{background:#f6f8fa;border-radius:12px;text-align:center;padding:22px;margin-bottom:24px}.signbox img{height:145px;max-width:100%;object-fit:contain;mix-blend-mode:multiply}.answers{display:grid;gap:10px}.answer{display:flex;align-items:center;gap:14px;text-align:left;border:1px solid #bdccd7;background:white;color:#16364d;border-radius:10px;padding:16px;font-weight:550;width:100%;min-height:62px}.answer:hover{background:#f0f6fb}.answer.selected{border:2px solid #235880;background:#edf5fc;padding:15px}.letter{flex:0 0 30px;border:1px solid #c7d4df;text-align:center;border-radius:5px;font-weight:700}.actions{display:flex;justify-content:space-between;gap:10px;flex-wrap:wrap;margin-top:26px}.feedback{margin-top:20px;padding:20px;background:#eaf5ef;border-left:4px solid #24804a;border-radius:8px}.feedback.wrong{background:#fff3eb;border-color:#b25324}.feedback p{margin:6px 0 10px}.feedback a,.review a{color:#225c88;font-size:14px}.scoregrid{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin:24px 0}.score{padding:24px;background:#edf3f8;border-radius:12px}.score strong{font-size:32px;display:block}.passed{color:#207443}.failed{color:#a74424}.review{border-top:1px solid #d7e1e8;padding:24px 0}.review img{height:90px;max-width:140px;object-fit:contain;display:block;margin-bottom:12px}.review p{margin:6px 0 10px}.textbutton{background:none;border:0;color:#526879;text-decoration:underline;padding:5px;font-size:14px}.reviewtop{margin-top:35px}.topics{font-size:14px;line-height:1.8}.sourcebox{padding-top:12px;border-top:1px solid #dbe3e9}footer{text-align:center;max-width:920px;margin:45px auto 25px;padding:0 24px;font-size:13px;color:#607586;line-height:1.9}footer a{color:#3e627d}button:focus-visible,a:focus-visible,input:focus-visible{outline:3px solid #b67b00;outline-offset:4px}@media(max-width:720px){header{padding:18px 20px}.edition{display:none}main{padding:0 16px;margin-top:24px}.grid{grid-template-columns:1fr}.card{padding:23px}.stats{gap:22px}.score{padding:18px}.score strong{font-size:26px}.topline{font-size:14px}.answer{padding:14px}.answer.selected{padding:13px}.actions button{flex:1}.signbox img{height:120px}}
/* Keep transparent white regions of edited signs white. */
.signbox:has(img[src^="signs/hard/"]){background:#fff}
.signbox img[src^="signs/hard/"]{background:#fff;mix-blend-mode:normal}

.legal{max-width:800px;margin:auto;overflow-wrap:anywhere}.legal h1{font-size:2.3rem}.legal h2{margin-top:30px;margin-bottom:12px}.legal a{color:#225c88}footer nav{font-size:14px;margin-bottom:16px;line-height:2.2}