.subject-module___odHUW__page{min-height:100vh;color:var(--foreground);background:0 0}.subject-module___odHUW__content{max-width:800px;margin:0 auto;padding:6rem 1.5rem 5rem}.subject-module___odHUW__backLink{color:var(--foreground-muted);align-items:center;gap:.4rem;margin-bottom:1.5rem;font-size:.85rem;font-weight:500;text-decoration:none;transition:color .2s;display:inline-flex}.subject-module___odHUW__backLink:hover{color:var(--primary)}.subject-module___odHUW__headerCard{background:var(--surface);border:1px solid var(--border);border-radius:1.25rem;margin-bottom:2rem;overflow:hidden;box-shadow:0 2px 16px #0000000d}.subject-module___odHUW__headerStripe{height:4px}.subject-module___odHUW__headerBody{padding:1.75rem 1.75rem 1.5rem}.subject-module___odHUW__subjectMeta{align-items:center;gap:.4rem;margin-bottom:.85rem;display:flex}.subject-module___odHUW__categoryTag{text-transform:uppercase;letter-spacing:.05em;color:var(--foreground-muted);background:var(--surface-hover);border-radius:9999px;padding:.2rem .65rem;font-size:.72rem;font-weight:700}.subject-module___odHUW__title{letter-spacing:-.03em;color:var(--foreground);margin:0 0 .5rem;font-size:clamp(1.6rem,4vw,2.25rem);font-weight:900}.subject-module___odHUW__desc{color:var(--foreground-muted);margin:0 0 1.25rem;font-size:.92rem;line-height:1.6}.subject-module___odHUW__statsRow{flex-wrap:wrap;gap:.6rem;display:flex}.subject-module___odHUW__statChip{border:1px solid var(--border);background:var(--surface-hover);color:var(--foreground-muted);border-radius:9999px;padding:.3rem .85rem;font-size:.78rem;font-weight:600}.subject-module___odHUW__sectionLabel{color:var(--foreground-muted);text-transform:uppercase;letter-spacing:.05em;margin-bottom:.85rem;font-size:.8rem;font-weight:600}.subject-module___odHUW__chapterList{flex-direction:column;gap:.6rem;display:flex}.subject-module___odHUW__chapterCard{background:var(--surface);border:1px solid var(--border);border-radius:.875rem;align-items:flex-start;gap:1rem;padding:1.1rem 1.25rem;text-decoration:none;transition:border-color .2s,transform .15s,box-shadow .2s;display:flex}.subject-module___odHUW__chapterCard:hover{border-color:var(--primary);transform:translateY(-2px);box-shadow:0 6px 20px #6366f11f}.subject-module___odHUW__chapterIndex{background:var(--surface-hover);border:1px solid var(--border);width:28px;height:28px;color:var(--foreground-muted);border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;margin-top:1px;font-size:.72rem;font-weight:700;display:flex}.subject-module___odHUW__chapterBody{flex:1;min-width:0}.subject-module___odHUW__chapterTop{justify-content:space-between;align-items:flex-start;gap:.75rem;margin-bottom:.3rem;display:flex}.subject-module___odHUW__chapterName{color:var(--foreground);flex:1;font-size:.95rem;font-weight:600;line-height:1.35}.subject-module___odHUW__chapterBadges{flex-shrink:0;align-items:center;gap:.4rem;display:flex}.subject-module___odHUW__diffBadge{text-transform:uppercase;letter-spacing:.03em;border-radius:9999px;padding:.18rem .55rem;font-size:.67rem;font-weight:700}.subject-module___odHUW__marksBadge{color:var(--foreground);background:var(--surface-hover);border:1px solid var(--border);border-radius:6px;padding:.18rem .55rem;font-size:.75rem;font-weight:700}.subject-module___odHUW__chapterDesc{color:var(--foreground-muted);margin:0 0 .6rem;font-size:.8rem;line-height:1.45}.subject-module___odHUW__chapterFooter{flex-wrap:wrap;align-items:center;gap:1rem;display:flex}.subject-module___odHUW__chapterMeta{color:var(--foreground-muted);align-items:center;gap:.3rem;font-size:.77rem;display:inline-flex}.subject-module___odHUW__viewLink{color:var(--primary);align-items:center;gap:.25rem;margin-left:auto;font-size:.78rem;font-weight:600;display:inline-flex}