:root{font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:#23344c;background:#f4f6fa;--navy:#172942;--muted:#63718a;--line:#e0e6ee;--teal:#14796b;--mint:#dff2eb;--orange:#9a5a14}*{box-sizing:border-box}body{margin:0;font-size:14px;line-height:1.6}button,input,textarea,select{font:inherit}button{cursor:pointer}button:disabled{opacity:.5;cursor:wait}a{color:inherit}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:3px solid #b780dd;outline-offset:3px}.skip{position:absolute;top:-80px;background:#fff;padding:12px;z-index:10}.skip:focus{top:0}.top{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:19px max(24px,calc((100vw - 1180px)/2));background:#fff;border-bottom:1px solid var(--line)}.brand{display:flex;align-items:center;gap:10px;text-decoration:none;font-size:22px;font-weight:800;letter-spacing:-.7px;line-height:1.2}.brand small{display:block;font-size:8px;letter-spacing:2px;color:var(--muted);margin-top:5px}.logo{background:var(--navy);color:white;border-radius:11px;padding:8px 12px;font-size:27px}.logo>span{color:#7fd7bd}nav{display:flex;gap:5px}nav button{border:0;background:none;color:var(--muted);font-weight:650;border-radius:9px;padding:10px 15px}nav button.active{background:#e9eff9;color:#233f6f}.sandbox,.eyebrow{font-size:10px;letter-spacing:1.7px;font-weight:800}.sandbox{border:1px solid #d4e2da;background:#f3faf5;color:#357a61;padding:6px 10px;border-radius:30px;white-space:nowrap}.notice{max-width:1180px;margin:20px auto 0;border-left:3px solid #97b6ce;background:#eaf0f6;padding:10px 15px;color:#4d6076;font-size:12px}main{max-width:1180px;margin:34px auto 60px;min-height:55vh;outline:none}.heading{margin-bottom:27px}.eyebrow{color:var(--teal)}h1{font-size:clamp(28px,3.6vw,44px);line-height:1.13;letter-spacing:-1.3px;margin:9px 0 12px;font-weight:750}h2{font-size:21px;letter-spacing:-.5px;line-height:1.3;margin:0 0 14px}h3{font-size:17px;line-height:1.4}.heading p{font-size:15px;color:var(--muted);margin:0;max-width:790px}.hero{display:flex;justify-content:space-between;gap:40px;padding:34px 42px;border-radius:19px;background:linear-gradient(115deg,#172d48,#244b64);color:white;overflow:hidden}.hero .eyebrow{color:#9fe2d1}.hero h2{font-size:34px;letter-spacing:-1px;margin:16px 0}.hero p{color:#d0e0e8;max-width:450px}.hero-note{display:inline-block;margin-top:16px;font-size:12px;color:#bbd8df}.hero-art{display:flex;flex-direction:column;justify-content:center;gap:10px;position:relative;min-width:270px;transform:rotate(-5deg);padding:10px 20px}.hero-art span{display:block;background:#ffffff0e;border:1px solid #ffffff32;border-radius:9px;padding:12px 23px;letter-spacing:2px;font-size:12px}.hero-art b{position:absolute;right:-5px;bottom:5px;background:#b9e5d0;color:#14493a;padding:12px 25px;border-radius:22px;font-size:45px;transform:rotate(10deg)}.section-head{display:flex;justify-content:space-between;align-items:center;gap:16px;margin:28px 0 18px}.section-head h2{margin:0}.section-head>span{font-size:12px;color:var(--muted)}.panel{padding:27px;background:#fff;border:1px solid var(--line);border-radius:15px;box-shadow:0 5px 14px #1b355207;min-width:0}.tracks{display:grid;grid-template-columns:1fr 1fr;gap:22px}.track{position:relative;padding-top:30px}.track-icon{display:grid;place-items:center;width:45px;height:45px;background:#f0f2fd;color:#626a98;border-radius:13px;font-size:25px;margin-bottom:20px}.tag{display:inline-block;vertical-align:middle;background:var(--mint);color:#286757;border-radius:20px;padding:4px 9px;font-weight:700;font-size:10px;letter-spacing:.3px;white-space:nowrap}.tag.amber{background:#fff0d9;color:#845615}.track>.tag{position:absolute;right:25px;top:30px}.track h2{font-size:25px;margin-bottom:7px}.track p{color:var(--muted)}.meta{display:flex;gap:14px;flex-wrap:wrap;border-top:1px solid var(--line);padding-top:16px;margin:18px 0 22px;color:var(--muted);font-size:12px}.primary,.secondary,.light,.danger,.flagged,.text-button{padding:10px 16px;border-radius:9px;font-weight:650;line-height:1.4;min-height:40px}.primary{border:1px solid var(--navy);background:var(--navy);color:#fff}.primary:hover{background:#284b6c}.secondary{border:1px solid #cbd6e3;background:white;color:#334f70}.light{border:0;background:#d9efe6;color:#1d4d40}.text-button{border:0;background:transparent;color:var(--teal)}.danger{border:1px solid #eccdc6;background:#fff6f3;color:#924537}.flagged{border:1px solid #d8b878;color:#78501e;background:#fff3da}.full{width:100%}.history{margin-top:25px}.history .section-head{margin-top:0}.history-row{display:flex;align-items:center;gap:20px;padding:15px 0;border-top:1px solid var(--line)}.history-row>div{flex:1}.history-row small{display:block;color:var(--muted);font-size:12px}.muted{color:var(--muted)}.study-grid{display:grid;grid-template-columns:1.35fr 1fr;gap:23px;align-items:start}.lesson-text{white-space:pre-wrap;overflow-wrap:anywhere;color:#455670;font-size:15px;line-height:1.85}.readiness h2{margin-top:10px}.readiness ul{padding-left:20px;color:var(--muted)}.readiness li{margin-bottom:10px}.callout,.studio-notice{padding:14px;border-radius:10px;background:#edf2f9;color:#425773;font-size:12px}.ack{display:flex!important;gap:10px;align-items:flex-start;margin:20px 0!important;font-size:13px!important;color:#405570}.ack input{margin:4px 0 0!important;width:17px!important;height:17px;flex-shrink:0;accent-color:var(--teal)}.exam-top{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-bottom:25px}.exam-top h1{font-size:28px;margin-bottom:0}.timer{display:flex;flex-direction:column;align-items:center;padding:12px 25px;border:1px solid var(--line);background:#fff;border-radius:12px;min-width:170px}.timer>span{font-size:9px;letter-spacing:1.4px;color:var(--muted)}#clock{font-variant-numeric:tabular-nums;font-size:29px;letter-spacing:1px}.timer small{font-size:10px;color:var(--muted)}#clock.urgent{color:#ad482e}.exam-layout{display:grid;grid-template-columns:minmax(0,1fr) 275px;gap:22px;align-items:start}.question-head{display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:12px;color:var(--muted);margin-bottom:28px}.question h2{font-size:23px;line-height:1.4}.answers{border:0;padding:0;margin:25px 0;display:grid;gap:12px;min-width:0}.answer{display:flex;align-items:center;gap:12px;border:1px solid var(--line);border-radius:11px;padding:16px;cursor:pointer;overflow-wrap:anywhere}.answer.chosen{border-color:#53a692;background:#f1faf6}.answer input{accent-color:var(--teal);width:17px;height:17px;flex-shrink:0}.letter{color:var(--muted);font-size:12px;font-weight:700}.question-tools{display:flex;align-items:center;flex-wrap:wrap;gap:10px;font-size:11px}.question-tools>span{margin-left:auto;color:var(--teal)}.question-footer{display:flex;justify-content:space-between;gap:14px;border-top:1px solid var(--line);padding-top:22px;margin-top:25px}.navigator h2{font-size:17px}.navigator p{font-size:12px;color:var(--muted)}.number-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;margin:20px 0}.number{border:1px solid #d0dbe6;border-radius:9px;background:#fff;position:relative;padding:10px 0;color:#3a5572;font-weight:750}.number.answered{background:#dfeee8;border-color:#93b9aa;color:#25533f}.number.current{outline:2px solid #365a86;outline-offset:2px}.number sup{position:absolute;top:-9px;right:1px;color:#a6670b}.legend,.hint{font-size:11px!important;color:var(--muted)}.review-summary{display:flex;align-items:center;gap:18px;flex-wrap:wrap;background:#eff4f9;border-radius:9px;padding:16px;margin-bottom:18px}.review-summary strong{margin-left:auto}.review-row{display:flex;align-items:center;gap:12px;padding:18px 0;border-bottom:1px solid var(--line)}.review-row>span:first-child{flex:1;min-width:0;overflow-wrap:anywhere}.end-actions{display:flex;justify-content:flex-end;gap:15px;margin-top:22px}.result-hero{display:flex;align-items:center;justify-content:space-between;gap:25px;background:#e4f1eb;border:1px solid #c4dfd3;border-radius:16px;padding:28px 35px;margin-bottom:25px}.result-hero strong{display:block;font-size:65px;letter-spacing:-3px;color:#235d4c;line-height:1.2;margin-top:5px}.result-hero strong small{font-size:27px}.result-hero p{color:#496a5e}.explanation{padding:23px 0;border-top:1px solid var(--line);overflow-wrap:anywhere}.explanation>div:first-child{display:flex;align-items:center;gap:12px;color:var(--muted);font-size:12px}.reason{background:#f3f6fa;border-left:3px solid #91acbf;padding:13px 17px;border-radius:0 8px 8px 0;color:#405673}.studio-toolbar{display:flex;gap:17px;align-items:center;flex-wrap:wrap;margin:22px 0}.studio-toolbar label{font-weight:650}.studio-toolbar select{width:auto;max-width:100%}.studio-grid{display:grid;grid-template-columns:1fr 1fr;gap:22px;align-items:start}form label{display:block;margin:15px 0;font-size:12px;font-weight:650}input:not([type=checkbox]):not([type=radio]),textarea,select{display:block;width:100%;min-width:0;margin-top:6px;padding:10px 12px;background:#fff;border:1px solid #bfccdc;border-radius:8px;color:#223854;font-size:14px}textarea{resize:vertical;min-height:85px}.pair{display:grid;grid-template-columns:1fr 1fr;gap:12px}.option-editor{min-width:0;border:1px solid var(--line);border-radius:8px;padding:12px}.option-editor legend{font-size:12px;font-weight:750;padding:0 5px}.option-editor>div{display:flex;align-items:center;gap:12px}.option-editor label{display:flex;align-items:center;gap:9px;flex:1;min-width:0;margin:4px 0}.option-editor input[type=checkbox]{width:17px;height:17px;accent-color:var(--teal)}.bank{margin-top:24px}.bank .section-head{margin-top:0}.bank-row{display:flex;align-items:center;gap:20px;padding:18px 0;border-top:1px solid var(--line)}.bank-row>div:first-child{flex:1;min-width:0;overflow-wrap:anywhere}.bank-row strong{display:block;margin:8px 0}.bank-row small{color:var(--muted)}.bank-row>div:last-child{display:flex;gap:8px}#status{position:sticky;bottom:12px;z-index:10;margin:0 auto 12px;max-width:min(660px,94vw);padding:12px 20px;border-radius:11px;background:#223e55;color:white;box-shadow:0 5px 20px #18384c20;font-size:12px}#status:empty{display:none}#status.error{background:#8d4235}footer{max-width:1180px;margin:0 auto;padding:20px 0 30px;border-top:1px solid var(--line);display:flex;gap:16px;align-items:center;flex-wrap:wrap;color:var(--muted);font-size:11px}footer button{background:none;border:0;text-decoration:underline;color:#755949;padding:5px}.busy{cursor:progress}.loading{padding:45px;text-align:center}@media(max-width:1240px){main,.notice,footer{margin-left:24px;margin-right:24px}}@media(max-width:850px){.sandbox{display:none}.exam-layout{grid-template-columns:1fr}.navigator{order:-1}.number-grid{grid-template-columns:repeat(8,minmax(0,1fr));margin:12px 0}.navigator p.hint{display:none}.navigator .full{width:auto}.hero-art{min-width:210px}.studio-grid,.study-grid{grid-template-columns:1fr}.hero{padding:30px}}@media(max-width:560px){.top{padding:14px 16px;gap:10px;flex-wrap:wrap}.brand{font-size:20px}.logo{font-size:23px;padding:7px 10px}nav button{padding:8px 9px;font-size:12px}main{margin:25px 16px 35px}.notice{margin:15px 16px 0;font-size:11px}footer{margin-left:16px;margin-right:16px}.heading p{font-size:14px}.hero{padding:26px}.hero h2{font-size:28px}.hero-art{display:none}.tracks{grid-template-columns:1fr}.panel{padding:20px}.section-head{align-items:flex-start;flex-wrap:wrap}.history-row{gap:8px;flex-wrap:wrap}.history-row>div{min-width:160px}.exam-top{align-items:flex-start}.exam-top h1{font-size:24px}.timer{min-width:125px;padding:8px 12px}.timer small{font-size:9px}.exam-top .eyebrow{font-size:9px}.question h2{font-size:20px}.question-head{margin-bottom:20px}.number-grid{grid-template-columns:repeat(6,minmax(0,1fr))}.question-tools>span{width:100%;margin:0}.answer{padding:13px 10px;gap:9px}.review-row{flex-wrap:wrap;gap:9px}.review-row>span:first-child{flex:1 1 100%}.review-summary{gap:12px;font-size:12px}.result-hero{flex-direction:column;align-items:flex-start;padding:24px}.bank-row{align-items:flex-start;flex-wrap:wrap}.bank-row>div:first-child{flex-basis:100%}.studio-toolbar{gap:10px}.end-actions{flex-wrap:wrap}.primary,.secondary,.light,.danger,.flagged{font-size:13px}.meta{gap:10px}}
