    --canvas-background: white;
        --almost-black: #141720;
        --dark-grey: #232733;
        --medium-grey: #2f3545;
        --light-grey: #383f52;
        --highlight-pink: #e91e63;
        --highlight-blue: #2196f3;
        --input-border-color: #596c7a;
      }

      #shell {
        height: 100vh;
        overflow: hidden;
      }

      #toolbar {
        padding: 0 16px;
        background-color: var(--almost-black);
        color: white;
        height: 60px;
        font-size: 20px;
     