@import "https://fonts.googleapis.com/css2?family=Source+Serif+4:opsz,wght@8..60,400;8..60,500;8..60,600;8..60,700&family=IBM+Plex+Mono:wght@400;500;600&family=DM+Sans:wght@400;500;600;700&display=swap";:root{--bg:#0e1015;--bg-sidebar:#161920;--bg-hover:#1e222b;--bg-active:#1471c9;--bg-card:#1a1d25;--fg:#e1e3e8;--fg-muted:#9299a6;--fg-faint:#545d6e;--accent:#60a5fa;--accent-dim:#60a5fa1a;--accent-bright:#93c5fd;--border:#262a33;--border-bright:#3a3f4b;--code-bg:#12151b;--search-bg:#12151b;--shadow:#00000073;--serif:"Source Serif 4", Georgia, "Times New Roman", serif;--mono:"IBM Plex Mono", "SF Mono", "Fira Code", Consolas, monospace;--sans:"DM Sans", -apple-system, BlinkMacSystemFont, sans-serif;--reading-width:780px}[data-theme=light]{--bg:#fff;--bg-sidebar:#f7f8fa;--bg-hover:#eef0f4;--bg-active:#1471c9;--bg-card:#f2f3f6;--fg:#1a1d26;--fg-muted:#4b5263;--fg-faint:#8b92a3;--accent:#2563eb;--accent-dim:#2563eb12;--accent-bright:#3b82f6;--border:#dfe2e8;--border-bright:#c8ccd4;--code-bg:#f4f5f7;--search-bg:#fff;--shadow:#00000012}*,:before,:after{box-sizing:border-box;margin:0;padding:0}::-webkit-scrollbar{width:5px}::-webkit-scrollbar-track{background:0 0}::-webkit-scrollbar-thumb{background:var(--fg-faint);border-radius:3px}::-webkit-scrollbar-thumb:hover{background:var(--fg-muted)}body{font-family:var(--sans);background:var(--bg);color:var(--fg);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;height:100vh;transition:background .3s,color .3s;display:flex;overflow:hidden}.sidebar{background:var(--bg-sidebar);border-right:1px solid var(--border);flex-direction:column;width:280px;min-width:280px;height:100vh;transition:background 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(width<=768px){.sidebar{z-index:20;height:100vh;box-shadow:4px 0 20px var(--shadow);transition:transform .25s;position:fixed;transform:translate(-100%)}.sidebar.open{transform:translate(0)}.content{padding:20px 16px 60px}.mobile-toggle{display:flex}.toolbar{top:10px;right:10px}.page-nav{flex-direction:column}.page-nav-btn{max-width:100%}.section-grid{grid-template-columns:repeat(2,1fr)}}