:root{--paper:#f7f7f2;--ink:#20392e;--green:#214d3c;--muted:#647368;--line:#dce3d9;--soft:#e9efe5;--gold:#f1eddb;--white:#fff}*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);font:16px/1.6 -apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}button,input,select,textarea{font:inherit}button,a,input,textarea,select{touch-action:manipulation}a{color:var(--green);text-underline-offset:4px}button{cursor:pointer}button:disabled{cursor:default;opacity:.55}button:focus-visible,a:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible,summary:focus-visible{outline:3px solid #a17d26;outline-offset:3px}h1,h2,h3{line-height:1.25;letter-spacing:-.5px}h1{font-size:36px;font-weight:650;margin:8px 0 12px}h2{font-size:21px;font-weight:650;margin:0 0 18px}h3{font-size:18px;font-weight:650}p{margin:0 0 15px}small,.small{font-size:13px;color:var(--muted)}#sidebar{position:fixed;inset:0 auto 0 0;z-index:20;width:230px;background:#f0f3ec;border-right:1px solid var(--line);padding:30px 20px;display:flex;flex-direction:column;overflow:auto}.brand{display:flex;align-items:center;gap:10px;text-decoration:none;font-size:23px;font-weight:750;letter-spacing:-1px}.brand img{width:33px;height:33px}.brand-sub{font-size:12px;color:var(--muted);margin:8px 0 30px}.nav-label,.eyebrow{font-size:11px;font-weight:700;text-transform:uppercase;letter-spacing:1.6px;color:var(--muted)}nav{display:grid;gap:4px;margin:12px 0 24px}.nav-item{display:flex;align-items:center;gap:12px;padding:11px 12px;border-radius:8px;text-decoration:none;color:#59695c;font-size:14px;min-height:46px}.nav-item:hover{background:#e7ecdf}.nav-item.active{color:var(--green);background:#dfe8d9;font-weight:650}.nav-icon{width:22px;text-align:center;font-size:17px}.side-foot{margin-top:auto;padding-top:20px;border-top:1px solid var(--line);font-size:12px;color:var(--muted)}#shell{margin-left:230px;padding:0 44px;max-width:1640px}.topbar{display:flex;align-items:center;justify-content:space-between;gap:16px;border-bottom:1px solid var(--line);padding:24px 0;font-size:11px;letter-spacing:1px;color:var(--muted)}#menu{display:none;background:transparent;border:1px solid var(--line);border-radius:6px;min-width:44px;min-height:44px}.page-heading{margin:34px 0 28px}.page-heading p{color:var(--muted);max-width:780px;font-size:15px}.page-heading .eyebrow{font-size:10px}.grid{display:grid;grid-template-columns:minmax(0,1.65fr) minmax(270px,1fr);gap:22px}.grid.equal{grid-template-columns:1fr 1fr}.stack{display:grid;gap:22px;align-content:start}.panel{background:white;border:1px solid var(--line);border-radius:12px;padding:26px;min-width:0}.hero{background:var(--green);color:white;border:0;position:relative;overflow:hidden}.hero h2{font-size:29px;font-weight:550;max-width:430px;margin:20px 0 15px}.hero .eyebrow{color:#b3cdb7}.hero p{color:#d7e3d9;max-width:440px;font-size:15px}.hero 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small{font-size:12px}.task-text{flex:1}.num{display:grid;place-items:center;flex-shrink:0;width:28px;height:28px;border-radius:50%;border:1px solid var(--line);font-size:11px;color:var(--muted)}.notice{padding:18px 20px;border:1px solid var(--line);background:var(--soft);border-radius:9px;font-size:14px;margin:16px 0}.notice.warn{background:#f6efdb;border-color:#e5d6b2;color:#6c5724}.notice.error{background:#fbefec;color:#82372c;border-color:#e6c9c1}.notice.success{background:#e6f0e1;color:#2d5c34;border-color:#c6dabe}.hint{background:var(--gold);border-color:#e0dac3}.hint h3{margin:12px 0}.hint p{font-size:14px;color:#746440}.source{font-size:13px;display:inline-block;margin:7px 14px 0 0}.roadmap{margin-top:24px}.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:22px}.step{border-top:3px solid #e2e7da;padding-top:12px}.step.current{border-color:#587e4d}.step strong{display:block;font-size:13px;margin:7px 0}.step small{font-size:11px}.field{margin:16px 0}.field 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0}audio{width:100%;margin:16px 0 0}.score-fields{display:grid;grid-template-columns:repeat(5,1fr);gap:16px}.score-fields .field{min-width:0}.score-fields label{font-size:13px}.result-number{font-size:44px;letter-spacing:-2px;font-weight:650;color:var(--green)}.result-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin:20px 0}.table-wrap{overflow:auto}table{border-collapse:collapse;width:100%;font-size:14px}td,th{text-align:left;padding:12px;border-bottom:1px solid var(--line)}ul,ol{padding-left:24px}li{margin:8px 0}footer{display:flex;justify-content:space-between;gap:15px;font-size:11px;color:var(--muted);padding:28px 0}.skip{position:fixed;top:-100px;left:20px;z-index:100;background:#fff;padding:12px}.skip:focus{top:10px}#toast{position:fixed;bottom:20px;left:50%;transform:translateX(-50%);padding:12px 18px;background:#233e30;color:white;border-radius:8px;z-index:50;font-size:14px;max-width:calc(100% - 32px);box-shadow:0 2px 8px #0002}#toast:empty{display:none}#storage-warning:empty{display:none}#storage-warning{margin-top:16px}.empty{text-align:center;padding:40px 20px}.empty h2{margin-bottom:12px}.study-day{padding:12px;border-bottom:1px solid var(--line)}.study-day strong{display:block}.muted{color:var(--muted)}.download{display:inline-block;margin:12px 0}.pillrow{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:20px}.lede{font-size:18px;max-width:740px;color:var(--muted)}
@media(min-width:1450px){#shell{padding:0 56px}}@media(max-width:1120px){#shell{padding:0 28px}.grid{grid-template-columns:1fr}.cards{grid-template-columns:repeat(2,1fr)}.score-fields{grid-template-columns:repeat(3,1fr)}}@media(max-width:760px){#sidebar{display:none;top:76px;width:100%;bottom:0;padding:20px}body.menu-open #sidebar{display:flex}#shell{margin:0;padding:0 18px}.topbar{padding:15px 0;gap:10px}.topbar>span:first-of-type{display:none}.topbar #exam-date{font-size:10px;letter-spacing:.4px}#menu{display:block}.page-heading{margin:26px 0 22px}h1{font-size:30px}.page-heading p{font-size:14px}.panel{padding:22px}.hero{padding:26px 23px}.hero h2{font-size:26px}.hero:after{width:40px;height:40px;right:18px;top:20px}.hero p{font-size:14px}.grid.equal,.cards,.cards.two{grid-template-columns:1fr}.steps{grid-template-columns:1fr 1fr;gap:19px}.score-fields{grid-template-columns:1fr 1fr}.question-top{align-items:flex-start}.question-top .small{max-width:65%}legend{font-size:18px}.context{font-size:16px;padding:16px}.btn{min-height:46px}.list-row{align-items:flex-start;flex-wrap:wrap}.list-row .btn{flex-shrink:0}.result-grid{grid-template-columns:1fr 1fr}footer{display:block;line-height:1.9}footer span{display:block}.section-title{flex-wrap:wrap}.timer{font-size:19px}textarea{min-height:260px}.filters .field{max-width:none}.notice{font-size:13px}main{overflow-wrap:anywhere}}@media(prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important;scroll-behavior:auto!important}}
[hidden]{display:none!important}
.account-dialog{border:1px solid var(--line);border-radius:14px;padding:30px;max-width:480px;width:calc(100% - 32px);color:var(--ink);background:var(--paper)}.account-dialog::backdrop{background:#142d2680}.account-dialog p{font-size:15px}.provenance{font-size:13px}.provenance summary{font-size:13px}

/* The main region receives programmatic focus after navigation. Interactive controls retain visible keyboard focus. */
#content:focus{outline:none}
.account-help{margin-top:24px;padding-top:20px;border-top:1px solid var(--line)}
.account-help summary{cursor:pointer;color:var(--green);font-weight:600;margin-bottom:12px}