.lesson-hero h1{font-size:clamp(2.8rem,4.6vw,4rem)}
.notes-intent{margin-top:28px;padding:20px 24px;border:1px solid #dbe5f4;border-radius:14px;background:#fff;max-width:1000px}.notes-intent p{margin:7px 0 0;color:var(--muted);line-height:1.7}
.definition{border-left:4px solid var(--blue);background:#f2f7ff;padding:15px 20px;margin:22px 0;border-radius:0 10px 10px 0}.definition>span{font-size:10px;font-weight:800;letter-spacing:1.7px;color:var(--blue)}.definition p{margin:7px 0 0!important;line-height:1.8}
.lab-hub{padding-top:36px;padding-bottom:70px}.lab-hub>p{color:var(--muted);line-height:1.8}.lab-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;margin:24px 0 35px}
.lab-card{padding:26px;background:white;border:1px solid var(--line);border-radius:15px;display:flex;flex-direction:column}.lab-card h3{font-size:1.2rem;line-height:1.45;margin:18px 0 12px}.lab-card h3 a{color:var(--ink)}.lab-card h3 a:hover{color:var(--blue)}.lab-card p{font-size:.9rem;color:var(--muted);line-height:1.7;margin:0 0 18px}.lab-card-top,.lab-card-actions{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap}.lab-card-actions{margin-top:auto}.lab-number{font-size:14px;font-weight:800;color:var(--blue);letter-spacing:1px}.practice-control{font-size:12px;color:var(--muted);display:flex;align-items:center;gap:7px}.practice-control input{accent-color:var(--blue);width:16px;height:16px}.lab-card.practised{border-color:#7eb695;background:#f9fefa}
.lab-filters{padding:22px;background:#fff;border:1px solid var(--line);border-radius:14px;margin:28px 0}.lab-part-tabs{display:flex;gap:10px;flex-wrap:wrap;margin:0 0 20px}.lab-part-tabs [aria-pressed=true]{background:var(--blue);color:white;border-color:var(--blue)}.lab-filters>label{display:block;font-size:13px;font-weight:700;margin:0 0 9px}.lab-filters input[type=search]{border:1px solid #c0cee3;border-radius:9px;font:inherit;padding:12px 15px;width:100%;max-width:620px;color:var(--ink)}#lab-filter-result{font-size:13px;margin:14px 0;color:var(--blue);font-weight:650}#lab-progress{margin:12px 0 0}
.lab-detail-hero{display:grid;grid-template-columns:135px minmax(0,1fr);gap:30px;align-items:start}.lab-hero-number{font-size:2.8rem;font-weight:650;color:var(--blue);background:#eaf0ff;border:1px solid #d7e2ff;border-radius:16px;display:grid;place-items:center;min-height:130px;letter-spacing:-2px}.lab-detail-hero h1{font-size:clamp(2rem,3.5vw,3.1rem);line-height:1.16;margin-top:0;max-width:900px}
.source-download{margin-left:10px;margin-top:12px;max-width:100%;overflow-wrap:anywhere}.lab-algorithm{padding-left:24px!important}.lab-algorithm li{padding-left:8px;margin-bottom:12px;line-height:1.85}.lab-algorithm li::marker{color:var(--blue);font-weight:800}.lab-explanation li{line-height:1.85;margin-bottom:13px}.model-answer{margin:15px 0}.model-answer summary{font-weight:700}.model-answer p{line-height:1.8}.lab-solution-link{color:var(--blue);text-underline-offset:3px}.lab-solution-link:hover{text-decoration:underline}
@media(max-width:700px){.lab-grid{grid-template-columns:1fr;gap:15px}.lab-card{padding:22px}.lab-detail-hero{grid-template-columns:1fr;gap:15px}.lab-hero-number{font-size:1.25rem;min-height:0;padding:12px 18px;width:max-content;letter-spacing:0;border-radius:9px}.lab-detail-hero h1{font-size:2.1rem}.notes-intent{padding:17px}.definition{padding:12px 15px}.source-download{margin-left:0;font-size:.76rem}.lab-filters{padding:18px}.lab-hub{padding-top:20px}}
@media print{.source-download,.program-details,.lab-hero-number{display:none}.lab-detail-hero{display:block}.definition{background:#fff;border-color:#333;break-inside:avoid}.model-answer{break-inside:avoid}.lab-meta{break-inside:avoid}.notes-intent{background:#fff}}
@media print{.lesson-code pre,.lesson-code pre code{white-space:pre-wrap;overflow-wrap:anywhere}.lesson-code pre{overflow:visible}.lesson-code .code-header button,.lesson-code .code-status{display:none}}