.o4Wwfa_header{top:var(--ui-sticky-top);z-index:5;gap:var(--space-3);margin-bottom:var(--space-6);padding:var(--space-3) 0 var(--space-3);border-bottom:1px solid var(--color-border);background:var(--color-bg);-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);flex-direction:column;transition:top .25s;display:flex;position:sticky}.o4Wwfa_topRow{justify-content:space-between;align-items:center;gap:var(--space-3);flex-wrap:wrap;display:flex}.o4Wwfa_topRight{align-items:center;gap:var(--space-3);flex-wrap:wrap;display:inline-flex}.o4Wwfa_backLink{font-size:var(--font-size-sm);color:var(--color-text-secondary);white-space:nowrap;text-transform:capitalize;transition:color var(--transition-fast);align-items:center;gap:4px;font-weight:600;text-decoration:none;display:inline-flex}.o4Wwfa_backLink:hover{color:var(--color-text)}@container main-content (max-width:640px){.o4Wwfa_header{margin-bottom:var(--space-3);padding:var(--space-1) 0 var(--space-2);position:static}}
.MVKmTG_card{--accent:#8b5cf6;margin-bottom:var(--space-5);background:0 0}.MVKmTG_card[data-subject=math]{--accent:#8b5cf6}.MVKmTG_card[data-subject=physics]{--accent:#f59e0b}.MVKmTG_card[data-subject=cs]{--accent:#10b981}.MVKmTG_cardBody{gap:var(--space-2);flex-direction:column;padding:0;display:flex}.MVKmTG_cardTop{align-items:center;gap:var(--space-2);flex-wrap:wrap;display:flex}.MVKmTG_subjectBadge{text-transform:uppercase;letter-spacing:.12em;background:var(--accent);color:#fff;border-radius:999px;align-items:center;padding:3px 10px;font-size:.66rem;font-weight:700;display:inline-flex}.MVKmTG_category{color:var(--color-text-secondary);text-transform:uppercase;letter-spacing:.12em;font-size:.66rem;font-weight:600}.MVKmTG_title{font-family:var(--font-display,"Fraunces"), Georgia, serif;letter-spacing:-.01em;color:var(--ui-ink);margin:6px 0 0;font-size:clamp(1.7rem,2.8vw,2.4rem);font-style:italic;font-weight:400;line-height:1.1}.MVKmTG_byline{gap:var(--space-1) var(--space-2);margin:var(--space-1) 0 0;font-size:var(--font-size-sm);color:var(--color-text-secondary);flex-wrap:wrap;display:flex}.MVKmTG_byline>span+span:before{content:"·";margin-right:var(--space-2)}
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