:root{font-family:system-ui,sans-serif;color:#102744;background:#f0f7fb;font-size:18px}*{box-sizing:border-box}body{margin:0}header{display:flex;justify-content:space-between;align-items:center;max-width:850px;margin:auto;padding:18px}a{color:#135975}main{max-width:800px;margin:0 auto;padding:20px}h1{font-size:clamp(2rem,6vw,3rem);margin:12px 0}p{line-height:1.6}.card{background:white;border:1px solid #c8dce5;border-radius:20px;padding:24px;margin:20px 0}.row{display:flex;flex-wrap:wrap;gap:12px;margin:16px 0}button,input,select{font:inherit;border-radius:12px;padding:14px;border:2px solid #32728a;max-width:100%}button{background:white;color:#102744;cursor:pointer;min-height:50px}button.primary{background:#123f58;color:white}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible{outline:4px solid #d9a724;outline-offset:3px}button:disabled{opacity:.6;cursor:default}label{display:block;margin:16px 0 8px}.choices{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.city{display:flex;flex-wrap:wrap;gap:16px}.building{text-align:center;background:#e7f4f6;border-radius:14px;padding:16px;min-width:110px}.building span{display:block;font-size:3rem}.note{font-size:.9rem;color:#425970}#feedback{min-height:35px;font-weight:600}nav{display:flex;gap:12px;flex-wrap:wrap}.tiles{display:flex;gap:8px;flex-wrap:wrap}.tiles button{font-size:1.4rem}progress{width:100%;accent-color:#176a77}@media(max-width:450px){main{padding:14px}.card{padding:18px}.choices{grid-template-columns:1fr}}@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto}}