*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,sans-serif;background:#f5f5f5;color:#333;line-height:1.6}#root{min-height:100vh}.editor-container{max-width:900px;margin:0 auto;padding:20px;background:#fff;min-height:100vh}.block-item{padding:4px 8px;margin:2px 0;border-radius:4px;cursor:text;position:relative}.block-item:hover{background:#f9f9f9}.block-item.focused{background:#f0f7ff;outline:2px solid #4a9eff}.block-input{width:100%;border:none;background:transparent;font-size:16px;font-family:inherit;padding:4px;outline:none;resize:none}.block-input:focus{outline:none}.block-heading{font-weight:600;font-size:1.2em}.block-task{display:flex;align-items:center;gap:8px}.task-checkbox{width:18px;height:18px;cursor:pointer}.block-indent{margin-left:24px}.markdown-content{line-height:1.8}.markdown-content h1,.markdown-content h2,.markdown-content h3{margin-top:1em;margin-bottom:.5em}.markdown-content code{background:#f4f4f4;padding:2px 6px;border-radius:3px;font-family:Courier New,monospace}.markdown-content pre{background:#f4f4f4;padding:15px;border-radius:5px;overflow-x:auto}.auth-container{max-width:400px;margin:100px auto;padding:30px;background:#fff;border-radius:8px;box-shadow:0 2px 10px #0000001a}.auth-form input{width:100%;padding:10px;margin:10px 0;border:1px solid #ddd;border-radius:4px;font-size:16px}.auth-form button{width:100%;padding:12px;background:#4a9eff;color:#fff;border:none;border-radius:4px;font-size:16px;cursor:pointer;margin-top:10px}.auth-form button:hover{background:#3a8eef}.loading{text-align:center;padding:40px;color:#666}.error{color:#d32f2f;padding:10px;background:#ffebee;border-radius:4px;margin:10px 0}