@import url('./fonts.css');
:root{--night:#001F63;--blue:#0061F0;--cyan:#00D1FF;--bg:#E6E9EB;--ink:#171717;--soft:rgba(0,97,240,.25);--green:#0F8A5F;--red:#C2410C}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font-family:'Source Sans 3',sans-serif;font-size:18px;line-height:1.55}button,a,input{ -webkit-tap-highlight-color:transparent}button{font-family:Lexend,sans-serif;font-size:15px;font-weight:500;border:1px solid transparent;border-radius:16px;padding:13px 20px;background:var(--blue);color:white;cursor:pointer;line-height:1.4}button:hover{filter:brightness(.92)}button:disabled{opacity:.45;cursor:default}a{color:var(--blue)}:focus-visible{outline:3px solid var(--cyan);outline-offset:4px}h1,h2,h3{font-family:Montserrat,sans-serif;line-height:1.3;letter-spacing:-.4px}h1:focus{outline:none}h1{font-size:42px;letter-spacing:-.8px}h2{font-size:24px}p{margin:0 0 20px}.eyebrow,.small,.edition,.cover-top,.cover-bottom,.header-course,.question-meta,.save-note,.intro,.saved,.review-status,.review-toolbar label{font-family:Lexend,sans-serif}.eyebrow{font-size:11px;letter-spacing:1.9px;font-weight:500}.ord{display:inline-block;margin-left:.16em;letter-spacing:0;font-size:.46em;vertical-align:super;line-height:.9;text-decoration:underline;text-underline-offset:.12em}button span{margin-left:24px}.cover{min-height:100dvh;background:var(--night);color:white;position:relative;overflow:hidden;padding:46px max(7vw,24px) 30px;display:flex;flex-direction:column}.cover-top{display:flex;justify-content:space-between;font-size:14px;position:relative;z-index:1}.edition{font-size:10px;letter-spacing:1.5px;opacity:.7}.cover-content{padding:76px 0 65px;position:relative;z-index:1;flex:1}.cover-content>.eyebrow{color:var(--cyan);margin-bottom:25px}.cover h1{font-size:clamp(52px,6vw,84px);line-height:1.03;font-weight:700;letter-spacing:-2.5px;margin:0 0 30px}.subjects{border-left:3px solid var(--cyan);padding-left:22px}.subjects h2{font-size:24px;margin:0 0 8px}.subjects p{font-family:Lexend,sans-serif;font-weight:300;font-size:17px;line-height:1.6}.cover-actions{display:flex;gap:14px;margin-top:34px}.cover-actions button{padding:15px 23px}.light-outline{border-color:#829bc4;background:transparent}.cover-help{font-family:Lexend,sans-serif;font-size:12px;font-weight:300;margin:17px 0 0;color:#bdcce4}.leaf{width:37vw;height:37vw;max-width:510px;max-height:510px;background:var(--cyan);position:absolute;right:-7vw;bottom:0;border-radius:55% 2px 0 2px;transform:translateY(14%)}.cover-bottom{z-index:1;position:relative;display:flex;align-items:end;gap:50px;justify-content:space-between;font-size:10px;font-weight:300;color:#bdcce4}.cover-bottom p{max-width:570px;margin:0}.cover-bottom>span{color:var(--night);text-align:right;margin-right:2vw}header{background:var(--night);color:white;border-bottom:1px solid #294575}.header-inner{max-width:1320px;margin:auto;padding:23px 40px;display:flex;align-items:center;gap:34px}.brand{font-family:Montserrat,sans-serif;font-size:20px;font-weight:700;color:white;text-decoration:none;letter-spacing:-.5px}.brand>span{font-weight:600}.header-course{font-size:12px;opacity:.7}.header-link{margin-left:auto;padding:6px 0;border-radius:0;background:transparent;font-size:12px;color:white}.section-banner{background:var(--night);color:white;padding:35px 40px 40px}.section-banner>div{max-width:1240px;margin:auto}.section-banner .eyebrow{color:#b5c8e5;margin-bottom:12px;font-size:10px}.section-banner h1{margin:0}.section-banner h1:after{content:'';display:block;width:48px;height:3px;background:var(--cyan);margin-top:20px}.container{max-width:1320px;margin:auto;padding:40px}.intro{display:flex;justify-content:space-between;align-items:center;margin-bottom:28px}.intro p{font-size:19px;margin:0}.intro span{font-size:12px;color:#525d6c}.topic-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}.topic,.leaf-card{background:white;border-radius:40px 2px;padding:30px}.topic{padding:30px 28px;display:flex;flex-direction:column;min-height:255px}.topic-top{display:flex;justify-content:space-between;color:#526173;font:10px Lexend,sans-serif;letter-spacing:1.4px}.topic h2{color:var(--night);margin:27px 0 10px;font-size:28px}.topic p{font-size:16px;line-height:1.5;max-width:250px;color:#4e5661}.topic-bottom{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:auto;padding-top:12px}.text-link{background:transparent;color:var(--blue);padding:0;text-decoration:underline;font-size:12px;border-radius:0}.pending{font:11px Lexend,sans-serif;color:#5b6472}.random{background:var(--night);color:white}.random h2{color:white}.random p,.random .pending,.random .topic-top{color:#c0d1eb}.random .text-link{color:white}.save-note{text-align:center;font-size:11px;color:#586372;margin:34px 0 0}.resume{padding:22px 26px;border:1px solid var(--soft);display:flex;justify-content:space-between;align-items:center;background:#f5f8fc;margin-bottom:26px;border-radius:16px}.resume p{margin:4px 0 0;font-size:15px}footer{background:var(--blue);color:white;padding:25px 40px;font-size:12px}footer>div{max-width:1240px;margin:auto}footer span{display:block;font:10px Lexend,sans-serif;opacity:.8;margin-top:9px}.quiz-layout{display:grid;grid-template-columns:minmax(0,1fr) 370px;gap:28px;align-items:start}.question-meta{font-size:11px;display:flex;justify-content:space-between;color:#42516b;margin-bottom:14px}.progress-track{height:3px;background:#ccd5e1;margin-bottom:23px}.progress-track>div{height:100%;background:var(--blue)}.question{padding:32px}.question h2{font:600 20px/1.5 'Source Sans 3',sans-serif;letter-spacing:0;margin:0 0 25px}fieldset{border:0;margin:0;padding:0}.option{position:relative;display:flex;gap:12px;align-items:baseline;border:1px solid #d5dce6;border-radius:4px;padding:14px 16px;margin:11px 0;font-size:18px;cursor:pointer;line-height:28px;flex-wrap:wrap}.option>span{flex:1;min-width:0}.option input{position:absolute;opacity:0;width:1px;height:1px}.option:has(input:focus-visible){outline:3px solid var(--cyan);outline-offset:2px}.option.selected{background:var(--soft);border-color:var(--blue)}.option.correct{border-color:var(--green);background:#eef8f3}.option.wrong{border-color:var(--red);background:#fff3ed}.answer-mark{font:500 11px Lexend,sans-serif;width:100%;padding-left:28px;color:var(--green)}.wrong .answer-mark{color:var(--red)}.question-actions{display:flex;justify-content:space-between;gap:16px;margin-top:30px}.secondary{background:transparent;border-color:var(--blue);color:var(--blue)}.feedback{border-top:1px solid #d9e2e9;margin-top:25px;padding-top:22px;outline:none}.feedback h3{font:600 16px Lexend,sans-serif}.feedback p{margin:0;font-size:18px;line-height:28px}.success{color:var(--green)}.error{color:var(--red)}.progress-panel{padding:28px 23px}.score-heading h2{color:var(--night);font-size:21px;margin:0 0 15px}.score{font:500 13px Lexend,sans-serif;display:flex;align-items:center;justify-content:flex-end;gap:8px;margin-bottom:18px}.score b{border:1px solid var(--blue);padding:6px 13px;border-radius:10px 1px;font-size:17px;color:var(--night)}.small{font-size:11px;font-weight:300;line-height:1.7;color:#525963}.answer-grids{display:grid;grid-template-columns:1fr 1fr;gap:15px}.answer-grid{border-collapse:collapse;width:100%;table-layout:fixed;font:11px Lexend,sans-serif;text-align:center}.answer-grid th{font-weight:500;height:27px;color:var(--night)}.answer-grid th:first-child{width:25px}.answer-grid td{border:1px solid var(--soft);height:24px;color:var(--blue);font-weight:600}.answer-grid button{font-size:11px;padding:2px;background:transparent;color:var(--night);border-radius:2px}.answer-grid .current th{background:var(--night)}.answer-grid .current button{color:white}.grid-help{font-size:12px;line-height:1.5;color:#5d6570;margin:17px 0}.saved{border-top:1px solid #dae0e7;padding-top:17px;font-size:12px;color:var(--night)}.saved span{display:block;color:#647080;font-size:10px;margin-top:6px}.result-summary{display:flex;justify-content:space-between;align-items:center;gap:30px;padding:35px 40px}.result-summary h2{font-size:30px;color:var(--night);margin:10px 0}.result-summary p{margin-bottom:0}.result-score{font-family:Lexend,sans-serif;color:var(--night);display:flex;flex-direction:column;align-items:center;min-width:180px}.result-score strong{font-size:52px;line-height:1.3}.result-score small{font-size:20px;font-weight:300}.result-score>span{font-size:13px}.key-table{background:white;padding:20px;margin:26px 0;border-radius:4px}.key-row{display:grid;grid-template-columns:repeat(10,1fr)}.key-row a{border:1px solid #d5deeb;text-align:center;padding:12px 2px;font:13px Lexend,sans-serif;text-decoration:none;color:var(--night)}.key-row a span{display:block;color:var(--green);margin-top:6px}.key-row a.missed span{color:var(--red)}.review-toolbar{display:flex;justify-content:space-between;align-items:center;margin:30px 0 20px}.review-toolbar h2{color:var(--night)}.review-toolbar label{font-size:13px}.review-toolbar input{accent-color:var(--blue)}.review-list{display:grid;gap:20px}.review-item{padding:30px 35px;scroll-margin-top:20px}.review-item.missed{border-left:3px solid var(--red)}.review-status{font-size:11px;color:var(--green)}.missed .review-status{color:var(--red)}.review-item h3{font:600 20px/1.5 'Source Sans 3',sans-serif;margin:12px 0}.review-item p{margin:12px 0 0;line-height:28px}.review-item summary{cursor:pointer;font-size:14px;color:var(--blue)}.result-actions{display:flex;gap:15px;margin-top:30px}.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip-path:inset(50%)}.skip{position:fixed;top:-100px;left:20px;z-index:10;background:white;padding:10px}.skip:focus{top:15px}@media(min-width:1500px){.cover-content{padding-top:100px}}@media(max-width:1050px){.quiz-layout{grid-template-columns:minmax(0,1fr) 310px;gap:20px}.container{padding:30px}.topic-grid{gap:18px}.topic{padding:26px 22px}.topic-bottom{flex-wrap:wrap}.question{padding:25px}.answer-grids{gap:10px}.progress-panel{padding:25px 17px}}@media(max-width:800px){.topic-grid{grid-template-columns:1fr 1fr}.quiz-layout{grid-template-columns:1fr}.progress-panel{max-width:100%}.answer-grids{gap:40px}.answer-grid td{height:36px}.header-course{display:none}.cover-content{padding-top:70px}.cover-bottom{max-width:75%}.cover-bottom>span{display:none}.leaf{width:45vw;height:45vw;right:-15vw}.result-summary h2{font-size:24px}}@media(max-width:540px){.cover{padding:28px 24px}.edition{display:none}.cover-top{font-size:12px}.cover-content{padding:65px 0 70px}.cover h1{font-size:46px;letter-spacing:-1.5px}.subjects h2{font-size:20px}.subjects p{font-size:15px}.cover-content>.eyebrow{font-size:9px;letter-spacing:1px}.cover-actions{flex-direction:column}.cover-actions button{width:100%}.cover-bottom{max-width:78%;font-size:9px}.cover-help{font-size:10px}.leaf{width:55vw;height:55vw}.header-inner{padding:19px 20px;gap:10px}.brand{font-size:16px}.header-link{font-size:10px}.section-banner{padding:29px 22px}.section-banner h1{font-size:30px}.section-banner .eyebrow{font-size:8px;letter-spacing:1px}.container{padding:26px 18px}.intro{display:block}.intro p{font-size:18px;margin-bottom:5px}.topic-grid{grid-template-columns:1fr}.topic{min-height:240px;padding:27px}.topic button{width:100%}.topic-bottom{display:grid;grid-template-columns:1fr}.pending{text-align:center;margin-top:3px}.topic .text-link{padding:9px}.question{padding:28px 20px;border-radius:32px 2px}.question h2{font-size:20px}.option{padding:12px;gap:8px}.question-actions{flex-direction:column-reverse}.question-actions button{width:100%}.answer-grids{grid-template-columns:1fr;gap:24px;max-width:300px;margin:auto}.answer-grid td{height:39px}.answer-grid{font-size:14px}.answer-grid button{font-size:13px}.progress-panel{padding:28px}.result-summary{flex-direction:column;align-items:flex-start;padding:28px}.result-score{align-items:flex-start}.key-row{grid-template-columns:repeat(5,1fr)}.review-toolbar{display:block}.review-toolbar h2{font-size:22px}.review-item{padding:25px}.result-actions,.resume{flex-direction:column;align-items:stretch}.resume{gap:15px}.result-actions button{width:100%}footer{padding:24px;font-size:11px}}
.mode-choice{width:280px;max-width:100%;position:relative}.mode-choice>button{width:100%;text-align:left}.mode-choice p{font:300 12px/1.6 Lexend,sans-serif;color:#bdcce4;margin:12px 0 0}.mode-choice label{display:block;font:12px Lexend,sans-serif;margin:16px 0 8px}.mode-choice select{font:14px Lexend,sans-serif;background:#fff;color:var(--night);padding:10px 14px;border:1px solid #829bc4;border-radius:4px;width:100%}.exam-clock{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-bottom:20px;font:13px Lexend,sans-serif;color:var(--night)}.exam-clock strong{font-size:25px;font-variant-numeric:tabular-nums}@media(max-width:540px){.mode-choice{width:100%}}
.result-score .grade-concept{font-weight:600;font-size:18px;margin-top:5px}.result-score .grade-cutoff{font-size:10px;margin-top:12px;color:#53627a}.result-score{min-width:240px;text-align:center}@media(max-width:540px){.result-score{text-align:left;min-width:0}}
.access-plans{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;max-width:920px;margin-top:35px}.access-plan{border-radius:40px 2px;padding:30px;display:flex;flex-direction:column}.free-plan{background:white;color:var(--ink)}.paid-plan{background:#0b3374;border:1px solid #5577a7;color:white}.access-plan .plan-label{font:500 10px Lexend,sans-serif;letter-spacing:1.3px;margin:0 0 18px}.free-plan .plan-label{color:var(--blue)}.paid-plan .plan-label{color:var(--cyan)}.access-plan h2{font-size:30px;margin:0 0 8px}.free-plan h2{color:var(--night)}.access-plan .plan-description{font:300 14px/1.6 Lexend,sans-serif;margin:0 0 20px}.access-plan ul{padding-left:18px;margin:0 0 25px;font-size:17px;line-height:1.6}.access-plan li{padding:4px 0}.plan-actions{display:grid;gap:12px;margin-top:auto}.access-plan .plan-note{font:300 11px/1.7 Lexend,sans-serif;margin:15px 0 0}.free-plan .plan-note{color:#53627a}.paid-plan .plan-note{color:#ccd9ee}.plan-unavailable{display:block;text-align:center;font:500 15px Lexend,sans-serif;border:1px solid #6b87ae;border-radius:16px;padding:15px;margin-top:auto;color:#e2eafa}.paid-plan>.plan-note{margin-bottom:20px}.cover-bottom p{max-width:70%}@media(max-width:680px){.access-plans{grid-template-columns:1fr}.access-plan{padding:27px}.cover-bottom p{max-width:100%}.cover-content{padding-top:45px}.plan-unavailable{margin-top:24px}}
#generate{display:grid;gap:18px;max-width:700px}#generate label{display:grid;gap:7px;font:14px Lexend,sans-serif}#generate select,#generate input{padding:12px;border:1px solid #a7b9d1;border-radius:4px;font:16px 'Source Sans 3',sans-serif;width:100%;background:white;color:#171717}#generate button{justify-self:start}#status{margin:18px 0 0}#questions details{margin:15px 0}#questions pre{font-size:13px}#questions button{margin:8px 0}