.revision-content h3{font-size:1.375rem;font-weight:700;margin-top:2.5rem;margin-bottom:1rem;padding:.75rem 1rem;border-radius:.5rem}.revision-content h3:has(#definitions){background:linear-gradient(135deg,#f5f3ff,#ede9fe);color:#6d28d9;border-left:4px solid #8b5cf6}.revision-content h3:has(#core-content){background:linear-gradient(135deg,#eff6ff,#dbeafe);color:#1e40af;border-left:4px solid #3b82f6}.revision-content h3:has(#extended-content){background:linear-gradient(135deg,#fffbeb,#fef3c7);color:#b45309;border-left:4px solid #f59e0b}.revision-content h3:has(#equations){background:linear-gradient(135deg,#f0fdfa,#ccfbf1);color:#0f766e;border-left:4px solid #14b8a6}.revision-content h3:has(#common-mistakes){background:linear-gradient(135deg,#fef2f2,#fee2e2);color:#b91c1c;border-left:4px solid #ef4444}.revision-content h3:has(#exam-tips){background:linear-gradient(135deg,#f0fdf4,#dcfce7);color:#15803d;border-left:4px solid #22c55e}.revision-content h3:not(:has(span[id])){color:#1e40af;border-bottom:2px solid #dbeafe;padding:0;padding-bottom:.5rem;background:none}.revision-content h4{font-size:1.125rem;font-weight:600;color:#1f2937;margin-top:1.75rem;margin-bottom:.75rem}.revision-content ul,.revision-content ol{margin:1rem 0;padding-left:1.5rem}.revision-content li{margin-bottom:.5rem;line-height:1.7}.revision-content li strong:first-child,.revision-content p>strong:first-child{color:#6d28d9}.revision-content table{width:100%;margin:1.5rem 0;border-collapse:collapse;font-size:.9375rem;border-radius:.5rem;overflow:hidden;box-shadow:0 1px 3px #0000001a}.revision-content th,.revision-content td{border:1px solid #d1d5db;padding:.75rem 1rem;text-align:left}.revision-content th{background:linear-gradient(135deg,#0f766e,#14b8a6);font-weight:600;color:#fff}.revision-content tr:nth-child(2n){background-color:#f0fdfa}.revision-content tr:nth-child(odd){background-color:#fff}.revision-content .katex-display{background:linear-gradient(135deg,#f0fdfa,#ccfbf1);border:1px solid #5eead4;border-radius:.5rem;padding:1rem;margin:1.5rem 0;overflow-x:auto}.revision-content .katex-display>.katex{color:#0f766e}.revision-content .katex{color:#0f766e;font-size:1.1em}.revision-content code{background-color:#fdf4ff;padding:.125rem .5rem;border-radius:.25rem;font-size:.875rem;font-family:ui-monospace,monospace;color:#a21caf;border:1px solid #f5d0fe}.revision-content hr{margin:2.5rem 0;border:none;height:2px;background:linear-gradient(90deg,transparent,#d1d5db,transparent)}.revision-content p{margin:1rem 0;line-height:1.75}.diagram-placeholder{display:flex;align-items:flex-start;gap:.75rem;background:linear-gradient(135deg,#fef3c7,#fde68a);border:1px solid #f59e0b;border-left:4px solid #f59e0b;border-radius:.5rem;padding:1rem 1.25rem;margin:1.5rem 0}.diagram-icon{font-size:1.5rem;flex-shrink:0}.diagram-text{color:#92400e;font-size:.9375rem;font-style:italic;line-height:1.5}.revision-content h4:contains("Worked Example"),.revision-content h4:contains("Example"){background:linear-gradient(135deg,#f0fdf4,#dcfce7);color:#15803d;padding:.5rem .75rem;border-radius:.375rem;border-left:3px solid #22c55e}.revision-content p:has(strong:contains("Wrong")),.revision-content li:has(strong:contains("Wrong")){background-color:#fef2f2;padding:.75rem 1rem;margin:.75rem 0;border-radius:.5rem;border-left:4px solid #ef4444}.revision-content p:has(strong:contains("Right")),.revision-content li:has(strong:contains("Right")){background-color:#f0fdf4;padding:.75rem 1rem;margin:.75rem 0;border-radius:.5rem;border-left:4px solid #22c55e}.revision-content strong{font-weight:600}.revision-content blockquote{border-left:4px solid #3b82f6;background:linear-gradient(135deg,#eff6ff,#dbeafe);padding:1rem 1.25rem;margin:1.5rem 0;border-radius:0 .5rem .5rem 0}.revision-content figure{margin:1.5rem 0;padding:1rem;background-color:#f9fafb;border:1px solid #e5e7eb;border-radius:.5rem;text-align:center}.revision-content figure img{max-width:100%;max-height:280px;width:auto;height:auto;margin:0 auto;display:block}.revision-content figcaption{margin-top:.75rem;font-size:.875rem;color:#6b7280;font-style:italic}.revision-content p:has(.katex):has(→){background:linear-gradient(135deg,#ecfdf5,#d1fae5);padding:.75rem 1rem;border-radius:.5rem;border:1px solid #6ee7b7}.revision-content ol{counter-reset:item}.revision-content ol>li{counter-increment:item;position:relative;padding-left:.5rem}.revision-content ol>li::marker{color:#0f766e;font-weight:700}