.ProseMirror {
          outline: none;
          font-family: 'Inter', system-ui, -apple-system, sans-serif;
          font-size: 16px;
          line-height: 1.7;
          color: hsl(var(--foreground));
          padding: 3rem;
          
          min-height: calc(100vh - 12rem);
        }

        .ProseMirror h1 {
          font-size: 2.5rem;
          font-weight: 700;
          margin: 2rem 0 1rem 0;
          color: hsl(var(--primary));
        }

        .ProseMirror h2 {
          font-size: 2rem;
          font-weight: 600;
          margin: 1.5rem 0 0.75rem 0;
          color: hsl(var(--primary));
        }

        .ProseMirror h3 {
          font-size: 1.5rem;
          font-weight: 600;
          margin: 1.25rem 0 0.5rem 0;
          color: hsl(var(--primary));
        }

        .ProseMirror p {
          margin: 0.75rem 0;
        }

        .ProseMirror a {
          color: hsl(var(--accent));
          text-decoration: underline;
          text-underline-offset: 2px;
        }

        .ProseMirror a:hover {
          color: hsl(var(--primary));
        }

        .ProseMirror mark {
          background-color: #ffff0040;
          border-radius: 2px;
          padding: 0 2px;
        }

        .ProseMirror ul, .ProseMirror ol {
          margin: 1rem 0;
          padding-left: 1.5rem;
        }

        .ProseMirror li {
          margin: 0.25rem 0;
        }

        .ProseMirror blockquote {
          border-left: 4px solid hsl(var(--primary));
          padding-left: 1rem;
          margin: 1rem 0;
          font-style: italic;
          color: hsl(var(--muted-foreground));
        }

        .ProseMirror code {
          background-color: hsl(var(--muted));
          padding: 0.25rem 0.5rem;
          border-radius: 4px;
          font-family: 'JetBrains Mono', monospace;
          font-size: 0.9em;
        }

        .ProseMirror pre {
          background-color: hsl(var(--muted));
          padding: 1rem;
          border-radius: 8px;
          overflow-x: auto;
          margin: 1rem 0;
        }

        .ProseMirror pre code {
          background: none;
          padding: 0;
        }

        /* Selection highlighting */
        .ProseMirror ::selection {
          background-color: hsl(var(--primary) / 0.2);
        }

        /* Placeholder styling */
        .ProseMirror p.is-editor-empty:first-child::before {
          content: attr(data-placeholder);
          float: left;
          color: hsl(var(--muted-foreground));
          pointer-events: none;
          height: 0;
        }