*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth}body{font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;background:#f0f2f7;color:#111827;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;font-size:15px}button,input,select,textarea{font-family:inherit}a{text-decoration:none;color:inherit}button{cursor:pointer}button:focus,button:active{outline:none}input:focus,select:focus,textarea:focus{outline:none;border-color:var(--primary)!important;box-shadow:0 0 0 3px #6366f11f}:root{--sidebar-width: 256px;--sidebar-bg: #0d1117;--primary: #6366f1;--primary-light: #818cf8;--primary-gradient: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);--accent: #f59e0b;--success: #10b981;--danger: #ef4444;--warning: #f59e0b;--bg: #f0f2f7;--card: #ffffff;--border: #e5e7eb;--text: #111827;--text-muted: #6b7280;--text-subtle: #9ca3af;--radius-sm: 6px;--radius: 9px;--radius-lg: 12px;--shadow-sm: 0 1px 2px rgba(0,0,0,.05);--shadow: 0 1px 3px rgba(0,0,0,.06), 0 4px 16px rgba(0,0,0,.07);--shadow-md: 0 4px 8px rgba(0,0,0,.07), 0 12px 32px rgba(0,0,0,.08);--shadow-lg: 0 8px 16px rgba(0,0,0,.08), 0 24px 64px rgba(0,0,0,.1)}::-webkit-scrollbar{width:5px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:#d1d5db;border-radius:99px}.tiptap{outline:none}.tiptap h1{font-size:1.75rem;font-weight:800;margin:.75rem 0 .5rem;color:#111827}.tiptap h2{font-size:1.35rem;font-weight:700;margin:.6rem 0 .4rem;color:#111827}.tiptap h3{font-size:1.1rem;font-weight:700;margin:.5rem 0 .3rem;color:#374151}.tiptap p{margin:.3rem 0}.tiptap ul,.tiptap ol{padding-left:1.5rem;margin:.4rem 0}.tiptap li{margin:.15rem 0}.tiptap blockquote{border-left:3px solid #6366f1;margin:.6rem 0;padding:.4rem 0 .4rem 1rem;color:#6b7280;font-style:italic}.tiptap hr{border:none;border-top:1.5px solid #e5e7eb;margin:1rem 0}.tiptap code{background:#f3f4f6;padding:.15rem .35rem;border-radius:3px;font-size:.88em;color:#e11d48}.tiptap a{color:#6366f1;text-decoration:underline;cursor:pointer}.tiptap img{max-width:100%;height:auto;border-radius:6px;margin:.5rem 0}.tiptap .ProseMirror-placeholder:before{color:#9ca3af;content:attr(data-placeholder);float:left;height:0;pointer-events:none}.tiptap div[data-youtube-video]{margin:.75rem 0}.tiptap div[data-youtube-video] iframe{border-radius:6px;max-width:100%}