:root{--ink:#1F2937;--bg:#F8FAFC;--accent:#F59E0B;--line:#ADBCCA;--surface:#E7EEF4;--button:#1E3A5F;--buttontext:#FFFFFF}*{box-sizing:border-box}body{margin:0;color:var(--ink);background:var(--bg);font:17px/1.65 Arial,Helvetica,sans-serif}a{color:inherit;text-underline-offset:4px}button,input,select,textarea{font:inherit}button,a,select{touch-action:manipulation}button{cursor:pointer}button:active,.sea-button:active{transform:scale(.97)}[hidden]{display:none!important}a:focus-visible,button:focus-visible,select:focus-visible,input:focus-visible,textarea:focus-visible{outline:3px solid var(--accent);outline-offset:4px}header,main,footer{width:min(1240px,calc(100% - 64px));margin:auto}header{padding-block:24px;border-bottom:1px solid 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