:root{--ink:#172d3d;--muted:#526777;--line:#dce4e9;--paper:#f3f6f8;--gold:#eebd65;--blue:#245e7d;--green:#156951}*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);font:16px/1.6 system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}.disclosure{background:var(--ink);color:#e3ebf0;text-align:center;font-size:13px;padding:7px 20px}header{display:flex;align-items:center;justify-content:space-between;padding:25px 4%;background:white;border-bottom:1px solid var(--line)}a{color:var(--blue);text-underline-offset:4px}.brand{display:flex;gap:14px;align-items:center;text-decoration:none;color:var(--ink);letter-spacing:1px;font-weight:650}.brand b{color:var(--blue)}.brand small{display:block;color:var(--muted);font-size:12px;font-weight:400;letter-spacing:.6px}.mark{background:var(--ink);color:var(--gold);font:700 19px/1 system-ui;padding:16px 11px;border-radius:4px}.edition{font-size:12px;letter-spacing:1.2px;color:var(--muted)}.edition span{display:block;text-align:right;font-size:14px;letter-spacing:0}.layout{display:grid;grid-template-columns:235px minmax(0,1fr);max-width:1500px;margin:auto;min-height:76vh}aside{padding:30px 20px;border-right:1px solid var(--line)}nav a{display:flex;align-items:center;gap:12px;text-decoration:none;padding:13px 15px;margin-bottom:8px;color:var(--muted);border-radius:6px;font-size:15px}nav a.active{color:var(--ink);background:#e0eaf0;font-weight:700}nav a span{font-size:13px;color:#687e8e}.aside-note{border-top:1px solid var(--line);margin:45px 14px 0;padding-top:25px;font-size:14px}.aside-note p{color:var(--muted)}small{font-size:13px}main{padding:38px 45px;min-width:0}h1{font-size:36px;letter-spacing:-1.2px;line-height:1.2;margin:8px 0 12px}h2{font-size:23px;letter-spacing:-.5px;line-height:1.3;margin:0 0 14px}h3{font-size:18px;line-height:1.4;margin:0 0 8px}p{margin:0 0 16px}.eyebrow{color:var(--blue);font-weight:750;letter-spacing:1.6px;font-size:12px}.lead{color:var(--muted);max-width:720px;margin-bottom:26px}.grid{display:grid;grid-template-columns:minmax(0,1.65fr) minmax(250px,1fr);gap:24px}.card{background:white;border:1px solid var(--line);border-radius:9px;padding:25px;margin-bottom:22px}.feature{background:var(--ink);color:white;border:0;position:relative}.feature p{color:#c4d5df}.feature .eyebrow{color:var(--gold)}.feature h2{font-size:28px;margin-top:10px}.row{display:flex;gap:14px;align-items:center;justify-content:space-between}.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:8px;overflow:hidden;margin-bottom:25px}.stat{background:white;padding:18px 23px}.stat strong{display:block;font-size:29px;line-height:1.3}.stat span{color:var(--muted);font-size:14px}button,.button{border:1px solid var(--line);background:white;color:var(--ink);font:650 14px/1.5 system-ui;padding:11px 17px;border-radius:5px;cursor:pointer;display:inline-block;text-decoration:none}button:hover,.button:hover{border-color:var(--blue);background:#edf3f7}button:disabled{opacity:.45;cursor:default}.primary{background:var(--gold);border-color:var(--gold);color:#172d3d}.primary:hover{background:#f4cb85}.blue{background:var(--blue);color:white;border-color:var(--blue)}.blue:hover{background:#174964}.actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:20px}.step{display:flex;gap:17px;padding:19px 0;border-bottom:1px solid var(--line);align-items:flex-start}.step:last-child{border:0}.number{flex:none;width:35px;height:35px;display:grid;place-items:center;border:1px solid var(--line);border-radius:50%;font-size:14px}.number.done{background:#e1f1eb;color:var(--green);border-color:#bbdfd2}.step-content{flex:1}.step p{font-size:14px;color:var(--muted);margin:3px 0}.step button{padding:7px 12px;flex:none}.tag{font-size:12px;border-radius:4px;background:#edf3f7;color:var(--blue);padding:4px 8px;display:inline-block}.notice{background:#fff6df;border-left:3px solid var(--gold);padding:15px 18px;margin-bottom:24px;font-size:14px}.subtle{color:var(--muted)}progress{width:100%;height:9px;accent-color:var(--blue)}label{display:block;font-size:14px;font-weight:650;margin:16px 0 6px}input,select{width:100%;border:1px solid #b9c9d4;border-radius:5px;background:white;padding:12px;color:var(--ink);font:16px system-ui}input[type=checkbox]{width:20px;height:20px;accent-color:var(--blue);flex:none}input[type=radio]{width:18px;accent-color:var(--blue)}.check{display:flex;gap:12px;align-items:flex-start;font-weight:450;padding:12px 0;margin:0;border-bottom:1px solid var(--line)}.check input{margin-top:4px}.check:last-child{border:0}.lessons{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}.lessons .card{margin:0;display:flex;flex-direction:column}.lessons .actions{margin-top:auto;padding-top:20px}.lesson-text p{margin-bottom:20px}.lesson-text h3{margin-top:25px}.answer{display:flex;gap:14px;width:100%;text-align:left;margin:12px 0;padding:17px;font-size:16px;font-weight:450}.answer b{border:1px solid var(--line);border-radius:4px;padding:0 8px;font-size:14px}.answer.selected{background:#e4eff6;border:2px solid var(--blue);padding:16px}.answer.correct{background:#e1f1eb;border-color:var(--green)}.answer.incorrect{background:#fbe8e5;border-color:#a33625}.feedback{padding:18px;background:#eef4f8;border-radius:5px;margin-top:20px}.question{font-size:24px;line-height:1.4;margin:25px 0}.topicrow{display:flex;justify-content:space-between;border-bottom:1px solid var(--line);padding:12px 0}.score{font-size:62px;letter-spacing:-3px;line-height:1.3}.qnav{display:flex;flex-wrap:wrap;gap:6px;margin:20px 0}.qnav button{min-width:39px;padding:7px}.qnav .selected{background:var(--blue);color:white}.qnav .answered{border-color:var(--green)}details{border-bottom:1px solid var(--line);padding:15px 0}summary{cursor:pointer;font-weight:650}details p{margin:14px 0}footer{padding:22px 5%;border-top:1px solid var(--line);font-size:13px;color:var(--muted);background:white}footer a{margin-left:10px}table{width:100%;border-collapse:collapse;font-size:14px}th,td{text-align:left;padding:12px 8px;border-bottom:1px solid var(--line)}.tablewrap{overflow:auto}:focus-visible{outline:3px solid #d58b16;outline-offset:3px}.empty{padding:25px;text-align:center;color:var(--muted)}@media(max-width:1050px){main{padding:28px}.grid{grid-template-columns:1fr}.layout{grid-template-columns:200px minmax(0,1fr)}}@media(max-width:720px){header{padding:18px}.edition{display:none}.layout{display:block}aside{padding:10px;border-right:0;border-bottom:1px solid var(--line)}nav{display:flex;overflow-x:auto}nav a{white-space:nowrap;font-size:14px;margin:0;padding:10px}nav a span,.aside-note{display:none}main{padding:24px 16px}h1{font-size:30px}.lessons{grid-template-columns:1fr}.card{padding:20px}.stat{padding:13px}.stat strong{font-size:24px}.step{gap:10px}.step button{padding:7px}.row{flex-wrap:wrap}.disclosure{font-size:12px}.question{font-size:21px}}@media print{header,.disclosure,aside,footer,button,.actions{display:none}.layout,.grid{display:block}main{padding:0}.card{break-inside:avoid}.feature{background:white;color:black}.feature p{color:black}}
.header-tools{display:flex;gap:12px;align-items:center}.header-tools select{width:auto;min-width:112px;margin:0}.language-label{font-size:12px;margin:0}.formrow{display:grid;grid-template-columns:1fr 1fr;gap:16px}.card{overflow-wrap:anywhere}h1{margin-top:18px}.actions{flex-wrap:wrap}#timeForm button{width:auto}.tablewrap td{vertical-align:top}.tablewrap button{white-space:nowrap}@media(max-width:700px){header{gap:18px;flex-wrap:wrap}.header-tools{margin-left:auto}.edition,.language-label{display:none}.formrow{grid-template-columns:1fr}.stats .stat strong{font-size:24px}}@media print{.header-tools,form{display:none!important}}
