/* GLOBAL STYLES */
* {
    box-sizing: border-box;
  }
  
  body {
    margin: 0;
    background-color: darkcyan;
    color: yellow;
    font-family: monospace;
  }
  
  /* MAIN CONTAINER */
  .container {
    display: flex;
    flex-direction: column; 
    gap: 1rem;
    padding: 1rem;
  }
  
  /* TOP INPUT ROW: HOLDS HTML, CSS, AND JS PANELS */
  .top-row {
    display: flex;
    flex-direction: row; 
    gap: 1rem;
    width: 100%;
  }
  
  /* INPUT PANELS (HTML, CSS, JS) */
  .input-panel {
    flex: 1;                
    min-width: 0;           
    background-color: #004f4f;
    border: 1px solid yellow;
    padding: 1rem;
    border-radius: 6px;
    display: flex;
    flex-direction: column;
  }
  
  /* TEXTAREA STYLING */
  textarea {
    width: 100%;
    height: 200px;
    background-color: #003636;
    color: yellow;
    border: 1px solid yellow;
    padding: 0.5rem;
    resize: vertical;
    font-family: monospace;
  }
  .editor-container {
    display: flex;
    width: 100%;
    position: relative;
  }
  .line-numbers {
    background-color: #002b2b;
    color: yellow;
    text-align: right;
    padding: 0.5rem 0.5rem 0.5rem 0;
    user-select: none;
    font-family: monospace;
    font-size: 0.9rem;
    line-height: 1.4;
    border-right: 1px solid yellow;
    min-width: 2.5rem;
    max-width: 3rem;
    overflow: hidden;
  }
  .editor-container textarea {
    flex: 1;
    margin: 0;
    border-left: none;
    height: 200px;
    resize: vertical;
    overflow: auto;
  }
  
  
  /* RUN BUTTON */
  .run-button {
    align-self: center;        
    background-color: yellow;
    color: darkcyan;
    padding: 0.6rem 1.2rem;
    font-weight: bold;
    cursor: pointer;
    margin-top: 0.5rem;
    border-radius: 4px;
    border: none;
  }
  .run-button:hover {
    background-color: #ffe100;
  }

  /*AUTO RUN SWITCH STYLES*/
  .auto-run-toggle {
    margin-top: 1rem;
    font-family: monospace;
    font-size: 0.9rem;
    color: yellow;
  }
  
  .auto-run-toggle input[type="checkbox"] {
    accent-color: yellow;
    margin-right: 0.4rem;
    transform: scale(1.2);
    cursor: pointer;
  }
  
  
  /* OUTPUT PANEL: HOLDS PREVIEW AND CONSOLE */
  .output-panel {
    display: flex;
    flex-direction: column;
    gap: 1rem;
  }
  
  /* PREVIEW IFRAME */
  .preview-panel iframe {
    width: 100%;
    height: 38vh;
    border: 1px solid red;
    background-color: transparent;
    display: block;
  }
  
  /* REMOVE IFRAME FOCUS STYLES */
  iframe {
    outline: none !important;
    box-shadow: none !important;
  }
  
  /* CONSOLE OUTPUT (JS LOGS) */
  .console-output {
    background-color: #002b2b;
    color: yellow;
    padding: 1rem;
    max-height: 200px;
    overflow-y: auto;
    font-size: 0.9rem;
    border: 1px solid yellow;
    border-radius: 6px;
  }
  
  /* RUN + AUTO-RUN CONTROLS */
.controls {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin: 1rem 0;
}