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8px}.ruhk7q_badgePopular{background:var(--ui-ink);color:#fff}.ruhk7q_badgeFree{color:#065f46;background:#d1fae5;border-color:#a7f3d0}.ruhk7q_badgeNew{background:var(--color-secondary);color:#fff}.ruhk7q_badgeComingSoon{background:var(--ui-accent-soft);color:var(--ui-ink)}.ruhk7q_badgeMath{background:var(--color-cat-math-bg);color:var(--color-cat-math);border-color:#3b82f640}.ruhk7q_badgePhysics{background:var(--color-cat-physics-bg);color:var(--color-cat-physics);border-color:#6366f140}.ruhk7q_badgeCs{background:var(--color-cat-cs-bg);color:var(--color-cat-cs);border-color:#0d948840}.ruhk7q_badgeSecurity{background:var(--color-cat-security-bg);color:var(--color-cat-security);border-color:#0e749040}.ruhk7q_badgeNetworking{background:var(--color-cat-networking-bg);color:var(--color-cat-networking);border-color:#06b6d440}.ruhk7q_badgeElectronics{background:var(--color-cat-electronics-bg);color:var(--color-cat-electronics);border-color:#14b8a640}.ruhk7q_badgeCompsci{background:var(--color-cat-compsci-bg);color:var(--color-cat-compsci);border-color:#0891b240}.ruhk7q_badgeAi{background:var(--color-cat-ai-bg);color:var(--color-cat-ai);border-color:#8b5cf640}.ruhk7q_badgeBiology{background:var(--color-cat-biology-bg);color:var(--color-cat-biology);border-color:#22c55e40}.ruhk7q_badgeChemistry{background:var(--color-cat-chemistry-bg);color:var(--color-cat-chemistry);border-color:#16a34a40}.ruhk7q_badgeExplore{background:var(--color-cat-explore-bg);color:var(--color-cat-explore);border-color:#a855f740}.ruhk7q_courseFooter{border-top:1.5px 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