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@media(min-width:1550px){#main{padding-top:45px}.hero{min-height:320px}.hero-copy{padding:39px 43px}.hero-copy h1{font-size:39px}}
@media(max-width:1200px){.sidebar{width:220px;padding-left:17px;padding-right:17px}.workspace{width:calc(100% - 220px);margin-left:220px}.topbar{padding:0 30px}#main{padding:30px}.lesson-layout{grid-template-columns:minmax(0,1fr) 200px;gap:18px}.reading-card{padding:25px}.hero-copy{padding:28px}.hero-copy h1{font-size:29px}.app-footer{margin:0 30px}.chapter-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:980px){.lesson-layout{grid-template-columns:1fr}.lesson-side{position:static;display:grid;grid-template-columns:1fr 1fr;gap:15px}.hero{grid-template-columns:1.6fr 1fr}.hero-copy h1{font-size:27px}.home-columns{grid-template-columns:1fr}.stat-grid{grid-template-columns:repeat(2,1fr)}.lab-grid{grid-template-columns:repeat(2,1fr)}.wizard-layout{grid-template-columns:1fr}.lesson-list{grid-template-columns:1fr}.today-label{display:none}.reading-card{padding:24px}.glossary-grid{grid-template-columns:1fr}}
@media(max-width:720px){.sidebar{transform:translateX(-100%);transition:transform .2s;width:246px;box-shadow:10px 0 50px #142e2a25}.sidebar.open{transform:translateX(0)}.workspace{width:100%;margin-left:0}.mobile-menu{display:block}.topbar{height:66px;padding:0 17px;gap:9px}.topbar-actions{margin-left:auto;gap:0}.breadcrumb{font-size:12px}#main{padding:25px 18px 38px}.page-head{display:block}.page-head h1{font-size:28px}.search-bar{max-width:none;width:100%;margin-top:16px}.hero{grid-template-columns:1fr}.hero-copy{padding:26px}.hero-visual{height:140px;margin-top:-15px;justify-content:flex-end}.hero-visual svg{max-width:310px}.hero-copy h1{font-size:30px}.hero-actions{flex-wrap:wrap}.stat-grid{gap:10px}.stat-card{padding:16px}.stat-card strong{font-size:24px}.stat-symbol{display:none}.continue-card{align-items:flex-start}.lesson-number{width:48px;height:57px;font-size:28px}.chapter-grid,.lab-grid,.help-grid,.review-grid{grid-template-columns:1fr}.lesson-heading{display:block}.lesson-heading>.button{margin-top:17px}.lesson-heading h1{font-size:27px}.lesson-layout{margin-top:20px}.lesson-tabs{gap:3px}.lesson-tab{padding:8px;font-size:11px}.reading-card{padding:22px 20px}.concept-grid{grid-template-columns:1fr}.lesson-side{grid-template-columns:1fr}.lesson-side .card{margin-bottom:0}.lab-controls{grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.lab-metrics{grid-template-columns:repeat(2,1fr)}.lab-experiment{padding:18px}.lab-plot{padding:8px}.learning-summary{grid-template-columns:1fr}.app-footer{margin:0 18px;font-size:10px}.app-footer a{margin-left:0}.quiz-card{padding:17px}.dialog-header h2{font-size:21px}dialog{padding:20px}.lesson-navigation .button{padding:9px 12px;font-size:12px}.formula-expression{font-size:16px}.page-head>.button{margin-top:16px}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}
.lesson-layout>div{min-width:0}.worked-example{border:1px solid #d7e4d5;background:#f8fbf5;border-radius:13px;padding:22px;margin:22px 0}.worked-example h3{margin-top:0}.worked-example .logic-step p{font-size:14px}.practice-task{padding:15px 18px;border-radius:9px;background:#fffaf0;border:1px solid #ece1c9;font-size:14px;line-height:1.9;margin:18px 0}.breadcrumb{min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.formula-expression{overflow-wrap:anywhere}
@media(max-width:720px){.lesson-tabs{display:grid;grid-template-columns:repeat(3,minmax(0,1fr))}.lesson-tab{white-space:normal;text-align:center}.worked-example{padding:17px}.lesson-layout{grid-template-columns:minmax(0,1fr)}.topbar-actions .button{white-space:nowrap;font-size:11px;padding:7px 10px}}

.study-domains{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;margin:28px 0}.domain-card{text-decoration:none;color:var(--ink);padding:22px}.domain-card p{color:var(--muted);font-size:13px}.domain-card span{color:var(--green);font-size:13px}@media(max-width:720px){.study-domains{grid-template-columns:1fr;gap:10px}.domain-card{padding:18px}.domain-card h2{font-size:19px}}

.topic-shortcuts{display:flex;flex-wrap:wrap;gap:10px 18px;margin-top:18px;font-size:13px;align-items:center}.topic-shortcuts span{color:var(--muted)}.topic-shortcuts a{color:var(--green);text-decoration:none;padding:8px 0}.release-card{padding:22px;margin-bottom:20px}.release-card p{color:var(--muted);margin-bottom:0;font-size:14px}
.hero-depth-note{font-size:12px!important;color:var(--green)!important;margin-bottom:0}.learning-path{margin:28px 0}.level-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}.level-card{padding:22px;color:var(--ink);text-decoration:none}.level-card h3{margin:14px 0 8px}.level-card p{font-size:13px;color:var(--muted);line-height:1.8}.level-card strong{font-size:13px;color:var(--green)}.level-foundation{color:#346349;background:#e5f0e7}.level-core{color:#436a8a;background:#e8eff5}.level-advanced{color:#755982;background:#f0e9f3}.depth-explainer{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));border:1px solid var(--line);border-radius:12px;margin-top:16px;background:#f7faf6}.depth-explainer>div{padding:18px}.depth-explainer strong,.depth-explainer span{display:block}.depth-explainer strong{font-size:14px}.depth-explainer span{font-size:12px;color:var(--muted);line-height:1.8;margin-top:6px}.advanced-entry{padding:17px 20px;margin-top:14px;border:1px solid var(--line);border-radius:12px;background:#fff}.advanced-entry summary{cursor:pointer;font-size:14px;color:#755982;min-height:24px}.advanced-entry p{color:var(--muted);font-size:13px;line-height:1.9}.course-levels{background:#f6f9f5;border:1px solid var(--line);border-radius:12px;padding:18px;margin-bottom:18px}.course-levels>strong,.filter-label{font-size:13px}.course-levels .filters{margin:12px 0}.course-levels .caption{margin-bottom:0}.filter-label{color:var(--muted);margin:15px 0 10px}.result-count{color:var(--muted);font-size:13px}.depth-navigation{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px;margin:24px 0}.depth-choice{display:block;border:1px solid var(--line);border-radius:12px;padding:15px;color:var(--ink);text-decoration:none;background:#fff}.depth-choice.active{background:#eaf3e9;border-color:#88aa8a;box-shadow:inset 0 0 0 1px #88aa8a}.depth-choice strong,.depth-choice small{display:block}.depth-choice small{font-size:12px;color:var(--muted);line-height:1.7;margin-top:5px}.depth-layout{display:grid;grid-template-columns:minmax(0,1fr) 230px;gap:24px;align-items:start}.depth-layout>article{min-width:0}.coarse-options,.code-actions,.answer-entry{display:flex;gap:10px;flex-wrap:wrap}.coarse-options .button{white-space:normal;text-align:left}.code-block,.code-output{font-family:Consolas,'Courier New',monospace;font-size:13px;line-height:1.8;white-space:pre-wrap;overflow-wrap:anywhere;word-break:break-word;max-width:100%;padding:18px;border-radius:10px;background:#162b29;color:#dbeadc;tab-size:2;overflow:auto}.code-output{background:#f3f7ef;color:#264b38;border:1px solid var(--line)}.math-source{margin:20px 0}.math-source summary{cursor:pointer;font-size:14px}.answer-entry{margin-top:15px;align-items:center}.answer-entry input{min-width:0;width:160px;padding:10px;border:1px solid #bbcbbc;border-radius:8px;background:#fff;font-size:15px}.depth-layout label{font-size:14px;line-height:1.9}.depth-layout .reading-card>.tag{margin-bottom:8px}#coarse-feedback,#depth-answer-feedback{font-size:14px;line-height:1.8;color:var(--green)}
@media(max-width:1100px){.depth-layout{grid-template-columns:minmax(0,1fr)}.depth-layout .lesson-side{position:static;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:15px}}
.code-block code{background:transparent;color:inherit;padding:0;border:0;border-radius:0;white-space:inherit;font-size:inherit;font-family:inherit}
.project-track-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin-top:16px}.project-track{display:block;text-decoration:none;color:var(--ink);padding:16px;border:1px solid var(--line);border-radius:10px;background:#f8faf6}.project-track strong{display:block;font-size:14px}.project-track span{display:block;font-size:12px;line-height:1.8;color:var(--muted);margin-top:7px}.project-materials p{overflow-wrap:anywhere;word-break:break-word}@media(max-width:720px){.project-track-grid{grid-template-columns:1fr}}
@media(max-width:720px){.level-grid,.depth-explainer{grid-template-columns:1fr;gap:10px}.level-card{padding:18px}.level-card h3{margin:9px 0}.depth-explainer{gap:0}.depth-explainer>div{padding:13px 17px}.depth-explainer>div+div{border-top:1px solid var(--line)}.depth-navigation{gap:6px}.depth-choice{padding:12px 9px}.depth-choice strong{font-size:14px}.depth-choice small{font-size:10px}.depth-layout .lesson-side{grid-template-columns:1fr}.code-block,.code-output{font-size:12px;padding:13px}.course-levels{padding:15px}.advanced-entry{padding:15px}.coarse-options .button{width:100%}}