.article-section.svelte-ntunk7{padding:2rem 0 1.5rem;border-bottom:1px solid var(--border)}.article-section.svelte-ntunk7:first-child{padding-top:1rem}.article-section.svelte-ntunk7:last-child{border-bottom:none}.section-header.svelte-ntunk7{display:flex;align-items:flex-start;gap:.9rem;margin-bottom:.9rem}.section-number.svelte-ntunk7{color:color-mix(in srgb,var(--accent) 45%,transparent);font-size:2.6rem;font-weight:800;line-height:.9;letter-spacing:-.02em;flex-shrink:0;min-width:1.5em}.section-heading.svelte-ntunk7{flex:1;min-width:0;display:flex;flex-direction:column;gap:.35rem;padding-top:.25rem}.section-heading.svelte-ntunk7 h2:where(.svelte-ntunk7){font-size:1.25rem;font-weight:700;line-height:1.3;color:var(--text)}.section-meta.svelte-ntunk7{display:flex;flex-wrap:wrap;align-items:center;gap:.5rem}.exercise-badge.svelte-ntunk7{font-size:.7rem;background:var(--bg-elevated);padding:.15rem .6rem;border-radius:999px;color:var(--text-muted);white-space:nowrap;font-weight:500}.topic-link.svelte-ntunk7{display:inline-flex;align-items:center;gap:.3rem;font-size:.72rem;font-weight:600;color:var(--accent);padding:.15rem .55rem;border-radius:999px;border:1px solid color-mix(in srgb,var(--accent) 30%,transparent);background:color-mix(in srgb,var(--accent) 8%,transparent)}.topic-link.svelte-ntunk7:hover{text-decoration:none;background:color-mix(in srgb,var(--accent) 16%,transparent)}.section-body.svelte-ntunk7{padding-left:0}.prose.svelte-ntunk7 p{margin-bottom:1em}.prose.svelte-ntunk7 p:last-child{margin-bottom:0}.prose.svelte-ntunk7 strong{color:var(--accent)}.prose.svelte-ntunk7 ul{margin-bottom:1em;padding-left:1.5em}.prose.svelte-ntunk7 li{margin-bottom:.3em}.prose.svelte-ntunk7 .katex-display{margin:1.25em 0;padding:1em 1.25em;background:var(--bg-surface);border:1px solid var(--border);border-radius:var(--radius-sm);overflow-x:auto}.prose.svelte-ntunk7 .katex{font-size:1.05em}.prose.svelte-ntunk7 .katex-display>.katex{font-size:1.15em}.prose.svelte-ntunk7 figure.interactive{margin:1.5em 0;background:var(--bg-elevated);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden}.prose.svelte-ntunk7 figure.interactive figcaption.hint{padding:.75em 1em;font-size:.85em;color:var(--text-muted);border-top:1px solid var(--border);font-style:italic}.section-exercises.svelte-ntunk7{margin-top:1.5rem;padding-top:1rem;border-top:1px dashed var(--border)}@media(max-width:520px){.section-number.svelte-ntunk7{font-size:2.1rem}.section-heading.svelte-ntunk7 h2:where(.svelte-ntunk7){font-size:1.1rem}}
