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svg.icon{color:var(--red)}.toast{position:fixed;bottom:24px;left:50%;transform:translateX(-50%);background:var(--ink);color:#fff;border:1px solid #496368;border-radius:13px;padding:13px 21px;max-width:calc(100vw - 36px);font-size:12px;line-height:1.6;box-shadow:0 7px 30px #19353e25;z-index:10}.error-page{max-width:570px;margin:10vh auto;padding:40px;text-align:center}.error-page h1{font-size:28px;margin:24px 0 15px;letter-spacing:-.8px}.error-page p{font-size:14px;line-height:1.8;color:var(--muted);margin-bottom:25px}.inline-link{background:transparent;color:var(--teal);font-size:12px;text-decoration:underline;text-underline-offset:3px;padding:0}.busy-label{opacity:.75}.question-editor,.test-card,.question-card,.intro-card,.summary-card{animation:appear .22s ease-out}@keyframes appear{from{opacity:.5;transform:translateY(5px)}to{opacity:1;transform:translateY(0)}}
.option-editor .correct-toggle{flex:0 0 auto;min-height:44px;padding:0 3px}.option-editor>.input{flex:1}.feedback{scroll-margin-top:24px}.feedback-heading>span:first-child{display:inline-flex;align-items:center;gap:9px}.feedback-section-title{font-size:11px;font-weight:800;letter-spacing:.65px;text-transform:uppercase;color:var(--teal);margin:16px 0 9px}.feedback.incorrect .feedback-section-title{color:#875223}
@media(min-width:1450px){.student-shell{padding-top:38px}.question-card{padding:40px}.practice-layout{gap:42px}.intro-layout{gap:65px}}
@media(max-width:1000px){.test-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.login-shell{gap:45px;padding-left:35px;padding-right:35px}.login-intro h1{font-size:47px}.editor-layout{grid-template-columns:minmax(0,1fr) 245px;gap:18px}.editor-aside .panel{padding:20px}.intro-layout{gap:25px;grid-template-columns:minmax(0,1fr) 245px}.intro-card{padding:32px}.intro-card h1{font-size:34px}.practice-layout{grid-template-columns:170px minmax(0,1fr);gap:22px}.question-card{padding:28px}.question-prompt{font-size:20px}.question-step{font-size:11px}}
@media(max-width:760px){.topbar{height:74px;padding:0 22px}.shell{padding:23px 22px 45px}.page-heading{align-items:flex-start}.page-heading h1{font-size:30px}.page-heading p{font-size:12px}.page-heading .btn{padding:11px 13px;font-size:12px}.test-grid{gap:14px}.test-card{padding:20px;min-height:244px}.test-card h2{font-size:17px}.card-stat{font-size:11px}.card-bottom{flex-wrap:wrap}.user-chip>span:not(.avatar){display:none}.login-shell{min-height:calc(100vh - 74px);gap:32px;padding:20px 26px 50px;grid-template-columns:1fr;max-width:520px}.login-intro h1{font-size:40px;max-width:400px;margin-bottom:16px}.login-intro>p{font-size:14px}.login-ornament{margin-bottom:20px}.login-features{display:none}.login-card{padding:27px}.editor-top{align-items:flex-start;flex-direction:column}.editor-actions{width:100%;flex-wrap:wrap}.editor-actions .save-state{margin-right:auto}.editor-layout{grid-template-columns:1fr}.editor-aside{position:static;display:grid;grid-template-columns:1fr 1fr}.embed-panel{grid-template-columns:1fr}.embed-panel h2{grid-column:auto}.student-topbar{padding:0 22px}.student-shell{padding:16px 22px 42px}.intro-layout{grid-template-columns:1fr;min-height:initial;gap:25px}.intro-card{padding:29px}.intro-card h1{font-size:33px}.intro-aside{padding:0 8px}.intro-aside h2{font-size:17px;margin-bottom:19px}.how-item{margin-bottom:15px}.practice-layout{grid-template-columns:1fr;gap:17px;margin-top:0}.practice-sidebar{position:static;padding:0}.progress-title{display:none}.progress-caption{margin-bottom:8px;font-size:11px}.question-nav{flex-direction:row;gap:6px;flex-wrap:wrap;margin-top:13px}.question-step{padding:0;width:auto}.question-step .step-label{display:none}.question-step.current{box-shadow:none;background:transparent}.step-dot{width:29px;height:29px}.sidebar-hint{display:none}.question-card{padding:25px;border-radius:22px}.practice-breadcrumb{margin-bottom:17px;font-size:11px}.question-meta{margin-bottom:21px}.question-prompt{font-size:20px}.summary-layout{margin-top:12px}.summary-card{padding:30px 24px}.summary-card h1{font-size:29px}.keyboard-hint{display:none}.question-footer{justify-content:flex-end}.answer-end span{display:none}.answer{padding:13px;gap:10px}.answer-text{font-size:13px}.feedback{padding:17px}.feedback-heading{flex-wrap:wrap}.feedback-points{margin-left:0}.summary-actions{flex-wrap:wrap}}
@media(max-width:460px){.brand{font-size:17px;gap:9px}.brand-mark{width:34px;height:34px;border-radius:11px;font-size:25px}.topbar-actions{gap:5px}.topbar{padding:0 17px}.shell{padding:22px 17px 40px}.page-heading{flex-direction:column;gap:20px;margin-bottom:20px}.page-heading .btn{width:100%}.toolbar{flex-direction:column-reverse;align-items:flex-start}.search{max-width:none}.test-grid{grid-template-columns:1fr}.test-card{min-height:230px}.test-card h2{font-size:19px}.editor-aside{grid-template-columns:1fr}.panel,.question-editor{padding:21px}.title-input{font-size:22px}.question-settings{grid-template-columns:1fr 85px}.editor-actions{gap:7px}.editor-actions .save-state{width:100%;margin-bottom:4px}.editor-actions .btn{flex:1}.student-shell{padding:10px 14px 30px}.student-topbar{padding:0 17px;height:72px}.student-topbar .badge{font-size:9px}.intro-card{padding:26px 23px;border-radius:23px}.intro-card h1{font-size:29px}.intro-metrics{gap:17px}.intro-metric{gap:9px}.question-card{padding:22px 19px}.question-prompt{font-size:19px}.answer{padding:13px 11px}.answer-letter{display:none}.answer-end{margin-left:0;gap:0}.question-footer .btn{width:100%}.feedback-explanation{font-size:12px}.summary-stats{gap:8px}.summary-stat strong{font-size:22px}.summary-stat span{font-size:10px}.summary-actions .btn{width:100%}.login-shell{padding-left:20px;padding-right:20px}.login-intro h1{font-size:36px}.login-card{padding:25px}.footer-note{align-items:flex-start;text-align:center}}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation:none!important;transition:none!important;scroll-behavior:auto!important}}