:root{--navy:#17366f;--navy2:#102a58;--orange:#ee7d32;--ink:#1f2937;--muted:#667085;--line:#dfe5ef;--soft:#f6f8fc;--paper:#fbfaf7;--green:#35755d}
*{box-sizing:border-box}body{margin:0;background:var(--soft);color:var(--ink);font:16px/1.55 'Open Sans',Arial,sans-serif}a{color:var(--navy)}button,a{touch-action:manipulation}button{font:inherit}button:focus-visible,a:focus-visible{outline:3px solid var(--orange);outline-offset:4px}[hidden]{display:none!important}
h1,h2,h3,.brand,.button,.topic{font-family:Montserrat,Arial,sans-serif}h1,h2,h3{color:var(--navy2);line-height:1.25;margin:0 0 14px}p{margin:0 0 12px}.container{width:min(1460px,calc(100% - 40px));margin:auto}.site-header{background:#fff;border-bottom:1px solid var(--line)}.nav{min-height:82px;display:flex;align-items:center;justify-content:space-between;gap:25px}.brand{display:flex;align-items:center;gap:10px;text-decoration:none;font-size:15px;font-weight:800;line-height:1.2}.brand img{width:64px;height:64px}.nav-links{display:flex;align-items:center;gap:25px;font-size:14px}.nav-links a{text-decoration:none}.nav-links .active{font-weight:800;background:#eaf2ff;border-radius:8px;padding:10px 14px}.orange{color:var(--orange)}.button{display:inline-flex;justify-content:center;align-items:center;gap:10px;background:var(--navy);color:white;border:1px solid var(--navy);padding:13px 23px;border-radius:10px;font-size:14px;font-weight:700;text-decoration:none;cursor:pointer}.button.secondary{background:white;color:var(--navy);border-color:#c9d7eb}.menu-toggle{display:none;border:1px solid var(--line);padding:8px 12px;min-width:44px;min-height:44px;background:#fff;color:var(--navy);border-radius:8px}
.intro{padding:24px 0 17px;display:flex;justify-content:space-between;gap:20px;align-items:center}.intro p{font-size:14px;color:var(--muted);margin:0}.eyebrow{font-size:11px;font-weight:800;letter-spacing:.11em;text-transform:uppercase;color:var(--orange)}.test-shell{background:#fff;border:1px solid #bbcee8;border-radius:18px;margin:0 0 38px;padding:20px;box-shadow:0 12px 34px #102a5808}.test-top{display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:18px;border-bottom:1px solid var(--line);padding:0 4px 18px;margin-bottom:18px}.exit{text-decoration:none;font-size:14px}.test-top h1{font-size:23px;letter-spacing:-.025em;margin:0;text-align:center}.progress-wrap{display:flex;align-items:center;justify-content:flex-end;gap:14px}.count{font-size:12px;white-space:nowrap;color:var(--navy)}.progress{display:flex;gap:5px;width:180px}.progress span{height:9px;flex:1;border-radius:20px;background:#dce5f1;transition:background .3s}.progress .current{background:var(--navy)}.progress .done{background:var(--green)}
.quiz-layout{display:grid;grid-template-columns:minmax(0,1.35fr) minmax(390px,1fr);gap:20px;align-items:stretch}.scene{margin:0;min-width:0;display:flex;flex-direction:column;border:1px solid #c6d5e8;border-radius:12px;overflow:hidden;background:var(--paper)}.scene img{display:block;width:100%;height:100%;min-height:380px;object-fit:contain;flex:1;background:white}.scene figcaption{font-size:11px;padding:7px 14px;color:var(--muted);border-top:1px solid var(--line)}.question-panel{border:1px solid var(--line);border-radius:12px;padding:20px;display:flex;flex-direction:column;justify-content:center}.topic{display:inline-block;align-self:flex-start;font-size:11px;font-weight:800;text-transform:uppercase;color:var(--navy);background:#eaf2fc;padding:5px 10px;border-radius:6px;margin:0 0 13px}.question-panel h2{font-size:clamp(21px,1.85vw,27px);line-height:1.3;margin-bottom:22px}.answers{display:grid;gap:10px}.answer{display:flex;gap:15px;align-items:center;width:100%;text-align:left;border:1px solid #ccd9ea;background:#fff;color:var(--navy2);padding:12px 14px;border-radius:10px;min-height:65px;font-size:15px;line-height:1.4;cursor:pointer}.answer:hover:not(:disabled){background:#f1f6fd;border-color:#83a4d2}.answer b{display:flex;align-items:center;justify-content:center;flex:none;width:38px;height:38px;border:1px solid #c9d7eb;border-radius:50%;font:800 17px Montserrat,Arial,sans-serif}.answer:disabled{cursor:default;opacity:1}.answer.correct{background:#edf7f0;border:2px solid #4b8768;padding:11px 13px}.answer.correct b{background:var(--green);color:#fff;border-color:var(--green)}.answer.wrong{background:#fff4ed;border:2px solid #b86f3f;padding:11px 13px}.answer.wrong b{background:#a25928;color:#fff;border-color:#a25928}.answer .choice-status{font-size:11px;display:block;font-weight:700;color:inherit;margin-top:4px}
.feedback{padding-top:18px}.feedback-grid{display:grid;grid-template-columns:minmax(0,1.2fr) minmax(0,1fr);gap:18px}.verdict{display:flex;align-items:flex-start;gap:17px;border:1px solid #b5d6c2;border-radius:12px;padding:22px;background:#f1f8f3}.verdict.not-quite{background:#fff6ef;border-color:#e2c4ac}.symbol{display:flex;align-items:center;justify-content:center;flex:none;width:48px;height:48px;font-size:26px;border-radius:50%;background:var(--green);color:white}.not-quite .symbol{background:#a25928}.verdict h3{font-size:26px;color:var(--green);margin-bottom:7px}.not-quite h3{color:#8b481f}.verdict p{font-size:14px;line-height:1.6;margin:0}.examiner-card{border:1px solid var(--line);border-radius:12px;padding:19px}.examiner-card h3{font-size:16px;margin-bottom:16px}.criteria{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}.criterion{text-align:center;padding:0 10px;font-size:12px;color:var(--navy2);font-weight:700;line-height:1.4}.criterion+ .criterion{border-left:1px solid var(--line)}.criterion img{display:block;width:48px;height:48px;object-fit:contain;margin:0 auto 9px;background:#f4f8ff;border-radius:50%}.feedback-bottom{display:grid;grid-template-columns:1.2fr 1fr;gap:18px;margin-top:15px}.visual-link{display:flex;gap:14px;align-items:center;background:#eef5ff;border:1px solid #b9cfeb;border-radius:10px;padding:14px 18px;text-decoration:none;color:var(--navy)}.visual-link strong{font-size:15px;display:block}.visual-link small{font-size:12px}.visual-link .arrow{margin-left:auto;font-size:24px}.next-row{display:flex;align-items:center;justify-content:flex-end}.support{margin-top:16px;border-top:1px solid var(--line);padding:14px 2px 0;display:flex;align-items:flex-start;justify-content:space-between;gap:16px}.support p{font-size:12px;color:#596575;margin:0;max-width:670px}.support strong{color:var(--navy2)}.support a{font-size:12px;white-space:nowrap;font-weight:700}.test-note{margin:17px 2px 0;font-size:11px;color:var(--muted)}.result{max-width:800px;margin:40px auto}.score{font:800 65px Montserrat,Arial,sans-serif;color:var(--navy)}.score span{font-size:25px;color:var(--muted)}.result .button{margin:12px 8px 0 0}.review-list{padding:0;list-style:none}.review-list li{display:flex;justify-content:space-between;gap:15px;align-items:center;padding:15px 0;border-bottom:1px solid var(--line);font-size:14px}.review-list .status{font-weight:700;color:var(--green)}
.learning{width:min(1100px,calc(100% - 40px));margin:32px auto 60px}.back-link{display:inline-block;margin-bottom:25px;font-size:14px;text-decoration:none}.learning h1{font-size:clamp(30px,4vw,45px);max-width:950px}.learning .recap{font-size:16px;color:#536176;max-width:900px}.learning .answer-card{background:#edf7f0;border:1px solid #b5d6c2;border-radius:12px;padding:23px;margin:25px 0}.answer-card h2{font-size:12px;color:var(--green);text-transform:uppercase;letter-spacing:.08em}.answer-card p{font-size:19px;font-weight:700;color:var(--navy2);margin:0}.learning h2{font-size:23px}.learning-section{margin:30px 0}.learning-section p{max-width:900px}.visual-breakdown{margin:0;background:#fff;border:1px solid var(--line);border-radius:14px;overflow:hidden}.visual-breakdown img{width:100%;display:block;aspect-ratio:3/2;object-fit:contain}.visual-labels{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;padding:23px;border-top:1px solid var(--line)}.visual-labels div{font-size:13px;color:#536176}.visual-labels strong{display:block;color:var(--navy);margin-bottom:7px}.visual-labels strong span{color:var(--orange);margin-right:8px}.why-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:35px}.common-mistake{border-left:4px solid var(--orange);padding:17px 20px;background:#fff7ef;border-radius:0 10px 10px 0;font-size:15px}.resources{display:grid;grid-template-columns:repeat(3,1fr);gap:15px}.resource{padding:21px;border:1px solid var(--line);border-radius:12px;background:#fff;display:flex;flex-direction:column}.resource h3{font-size:17px;margin-top:8px}.resource p{font-size:13px;color:#536176;flex:1}.resource a{font-weight:700;font-size:13px}.resource .eyebrow{font-size:10px}.source-note{border-top:1px solid var(--line);padding-top:20px;margin-top:35px;font-size:11px;color:var(--muted)}footer{background:#fff;border-top:1px solid var(--line);padding:25px 0;font-size:12px;color:var(--muted)}footer .container{display:flex;gap:20px;justify-content:space-between}.footer-links{display:flex;gap:17px;flex-wrap:wrap}
@media(max-width:1150px){.nav-links{gap:17px}.quiz-layout{grid-template-columns:1.12fr 1fr}.question-panel{padding:16px}.answer{font-size:14px}.test-top{grid-template-columns:auto 1fr}.test-top h1{text-align:right;font-size:20px}.progress-wrap{grid-column:1/-1;justify-content:flex-end}.progress{width:240px}.scene img{min-height:350px}}
@media(max-width:850px){.quiz-layout{grid-template-columns:1fr}.scene img{height:auto;min-height:0;aspect-ratio:3/2}.question-panel h2{font-size:23px}.nav-links{display:none;position:absolute;z-index:3;top:82px;left:0;right:0;padding:22px;background:#fff;border-bottom:1px solid var(--line);flex-direction:column}.nav-links.open{display:flex}.menu-toggle{display:block}.feedback-grid{grid-template-columns:1fr}.feedback-bottom{grid-template-columns:1fr}.next-row .button{width:100%}.support{flex-direction:column}.support a{white-space:normal}.why-grid{grid-template-columns:1fr;gap:0}.resources{grid-template-columns:1fr}.learning{margin-top:25px}.visual-labels{gap:14px;padding:18px}.intro .eyebrow{display:none}}
@media(max-width:500px){.container{width:calc(100% - 24px)}.test-shell{padding:12px;border-radius:13px}.test-top{padding:4px 0 13px;gap:12px}.test-top h1{font-size:16px}.exit{font-size:12px}.progress-wrap{justify-content:space-between}.progress{width:160px}.question-panel{padding:15px 12px}.question-panel h2{font-size:21px}.answer{min-height:64px;font-size:14px;padding:10px}.answer.correct,.answer.wrong{padding:9px}.answer b{width:32px;height:32px;font-size:15px}.verdict{padding:17px 14px;gap:12px}.symbol{width:36px;height:36px;font-size:21px}.verdict h3{font-size:23px}.examiner-card{padding:17px 12px}.criteria{gap:4px}.criterion{padding:0 5px;font-size:11px}.criterion img{width:40px;height:40px}.visual-link strong{font-size:14px}.intro{padding:17px 0 12px}.intro p{font-size:12px}.learning{width:calc(100% - 28px)}.visual-labels{grid-template-columns:1fr;gap:17px}.review-list li{align-items:flex-start;flex-direction:column}footer .container{flex-direction:column}.nav .brand{font-size:13px}.nav .brand img{width:54px;height:54px}.result{margin:22px 8px}}
.support-products{display:flex;gap:14px;flex-wrap:wrap;justify-content:flex-end}.support-products a{white-space:normal}@media(max-width:850px){.support-products{justify-content:flex-start}}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{scroll-behavior:auto!important;transition:none!important;animation:none!important}}

.menu-toggle:focus-visible{outline:3px solid var(--orange);outline-offset:3px}

.nav-links .nav-trainer{background:var(--orange);color:#fff;padding:11px 15px;border-radius:9px;box-shadow:0 8px 18px #ee7d3233}.nav-links .nav-trainer:hover{background:#d96b25;color:#fff}