:root{--s50:#ecfdf5;--s100:#d1fae5;--s300:#6ee7b7;--s400:#34d399;--s500:#10b981;--s600:#059669;--s700:#047857;--a400:#fbbf24;--a500:#f59e0b;--red500:#ef4444;--red600:#dc2626;--bg:#f8fafc;--card:#fff;--card-2:#f1f5f9;--header:#ffffffcc;--text:#0f172a;--text-2:#334155;--text-muted:#64748b;--text-dim:#94a3b8;--border:#e2e8f0;--border-2:#cbd5e1;--hover:#f1f5f9;--key-bg:#f1f5f9;--key-tx:#475569;--sol-bg:#ecfdf5;--sol-bd:#d1fae5;--opt-correct-bg:#ecfdf5;--opt-wrong-bg:#fef2f2;--link-hover-bg:#d1fae5;--link-hover-tx:#047857;--shadow:0 1px 2px rgba(15,23,42,.04);--radius:12px}[data-theme=dark]{--bg:#020617;--card:#1e293b;--card-2:#0f172a;--header:#020617e6;--text:#f1f5f9;--text-2:#cbd5e1;--text-muted:#94a3b8;--text-dim:#64748b;--border:#334155;--border-2:#475569;--hover:#0f172a;--key-bg:#0f172a;--key-tx:#cbd5e1;--sol-bg:#052e26;--sol-bd:#065f46;--opt-correct-bg:rgba(16,185,129,.15);--opt-wrong-bg:#2a1416;--link-hover-bg:rgba(16,185,129,.14);--link-hover-tx:#6ee7b7;--shadow:0 1px 2px 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