.course-hero{display:grid;grid-template-columns:1.1fr 1fr;gap:50px;align-items:center;padding:14px 0 28px}.course-hero h1{font-size:clamp(34px,5vw,55px);line-height:1.08;max-width:620px}.hero-link{display:inline-block;padding:12px 0;min-height:48px;font-weight:650}.path-card{background:#10243b;color:#fff;border-radius:20px;padding:28px 32px;box-shadow:0 14px 35px #10243b12}.path-card>span{font-size:11px;letter-spacing:.15em;color:#76d6dd}.path-card ol{padding-left:24px;display:grid;gap:16px}.path-card li{padding-left:8px;font-weight:650}.path-card small{display:block;color:#c4d4df;font-size:13px;font-weight:400}.path-card p{color:#87dce2;margin:18px 0 0;border-top:1px solid #ffffff28;padding-top:16px;font-size:14px}.scope-note,.subtle{font-size:13px;line-height:1.7}.scope-note{max-width:900px}.catalog-heading,.study-heading{display:flex;justify-content:space-between;align-items:start;gap:24px}.catalog-heading>div:last-child{width:min(100%,330px)}.catalog-heading label{font-size:13px}.stage-tabs{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;margin:22px 0 18px}.stage-tabs button{background:#eef4f8;color:#10243b;font-size:13px;padding:12px 8px}.stage-tabs [aria-pressed=true]{background:#10243b;color:white}.course-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}.course-card{background:white;color:#10243b;text-align:left;padding:18px;display:flex;flex-direction:column;gap:8px;min-height:116px;border:1px solid #d1e0e7}.course-card strong{font-size:16px;line-height:1.4}.course-card span{font-size:12px;color:#526b7d}.course-card[aria-current=true]{border:2px solid #008695;background:#effafa}.course-card:hover{border-color:#008695}.lesson-tabs{display:flex;gap:10px;margin:24px 0;flex-wrap:wrap}.lesson-tabs button{background:#f3f7fa;color:#10243b;font-size:14px;flex:1;text-align:left}.lesson-tabs [aria-current=step]{background:#007f8d;color:white}h4{font-size:17px;margin:22px 0 12px}#lesson-title{font-size:27px;line-height:1.3}#lesson-steps{padding-left:25px}#lesson-steps li{padding:10px 0 10px 6px}.practice-brief{border-left:3px solid #008695;background:#edf8f8;padding:20px 24px;margin:20px 0}.practice-brief h4{margin:6px 0 12px}.practice-brief p:last-child{margin:0}#save-status,#course-progress,#catalog-status,#lab-save-status{font-size:13px;color:#426477}.completion{display:flex;align-items:flex-start;gap:12px;font-size:15px;margin:20px 0 10px}.completion input{width:22px;min-width:22px;height:22px;min-height:22px;margin:2px 0 0;accent-color:#008695}.resource-row{display:flex;flex-wrap:wrap;gap:10px 24px;margin:22px 0}.resource-row a{display:inline-block;min-height:44px;padding:9px 0;font-weight:600;font-size:14px}details{border:1px solid #d6e2e9;padding:16px 20px;border-radius:10px;margin-top:22px}summary{cursor:pointer;min-height:44px;font-weight:650}fieldset{border:0;padding:0;margin:14px 0}legend{font-weight:650;margin-bottom:12px}#quiz-choices label{display:flex;align-items:center;gap:10px;padding:10px;font-weight:400}#quiz-choices input{width:20px;min-height:20px;height:20px;margin:0}.lab-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}.lab-grid article{min-width:0}.lab-grid h3{font-size:19px}.lab-grid label{font-size:13px}.lab-grid button{margin:12px 0}.lab-grid table{width:100%;border-collapse:collapse;margin:12px 0 18px;font-size:14px}.lab-grid th,.lab-grid td{padding:6px 10px;border-bottom:1px solid #d6e2e9;text-align:left}.lab-grid caption{text-align:left;font-weight:650}#typing-target{padding:12px;background:#edf4f8;border-radius:8px}#poster-colour{width:64px;padding:4px}#poster-preview{border:1px solid #d6e2e9;border-top:6px solid #007f8d;background:#f1faf9;padding:22px;margin-top:16px;overflow-wrap:anywhere}#poster-preview span{font-size:10px;letter-spacing:.1em}#poster-text{display:block;font-size:28px;line-height:1.1;margin:18px 0}#poster-preview p{font-size:13px;margin:0}.continue-path{background:#eaf3f5}.actions button:disabled{opacity:.5;cursor:default}#lesson-notes{font-size:16px}#study,#catalog,#mini-labs{scroll-margin-top:20px}header img{flex:none}#poster-heading,#formula-input,#course-search{font-size:16px}@media(max-width:800px){.course-hero{grid-template-columns:1fr;gap:20px}.course-cards{grid-template-columns:1fr 1fr}.lab-grid{grid-template-columns:1fr}.lab-grid article+article{border-top:1px solid #d6e2e9;padding-top:18px}.path-card{padding:24px}.path-card ol{display:grid;grid-template-columns:1fr 1fr;gap:18px 24px}.catalog-heading{display:block}.catalog-heading>div:last-child{width:100%;margin-top:18px}.stage-tabs{grid-template-columns:1fr 1fr}}@media(max-width:450px){.course-cards{grid-template-columns:1fr}.path-card ol{grid-template-columns:1fr}.course-card{min-height:90px}.study-heading{display:block}.lesson-tabs{flex-direction:column}.lesson-tabs button{width:100%}.course-hero h1{font-size:36px}.actions button{width:100%}#lesson-title{font-size:24px}.practice-brief{padding:16px}.stage-tabs button{min-height:52px}header>a:last-child{font-size:12px}}