:root {
  --editor-line-height: 1.5;
  --editor-padding: 12px;
  --active-line-bg: transparent;
  --selection-bg: rgba(140, 180, 255, 0.25);
  --panel-header-bg: rgba(255, 255, 255, 0.02);
  --panel-border: rgba(255, 255, 255, 0.1);
  --panel-shadow: 0 12px 30px rgba(0, 0, 0, 0.35);
  --status-idle-bg: rgba(255, 255, 255, 0.08);
  --status-idle-text: #b3b3b3;
  --status-running-bg: rgba(46, 204, 113, 0.12);
  --status-running-text: #2ecc71;
  --status-success-bg: rgba(72, 187, 120, 0.18);
  --status-success-text: #48bb78;
  --status-error-bg: rgba(229, 62, 62, 0.18);
  --status-error-text: #fc8181;
  --pane-height: calc(95vh - 100px);
  --console-header-height: 56px;
}

body {
  font-family: "Fira Mono", "Consolas", monospace;
  background: var(--bg);
  color: var(--text);
  margin: 0;
  padding: 0;
  height: 100vh;
  display: flex;
  flex-direction: column;
  box-sizing: border-box;
  overflow: hidden;
}

/* ===== MAIN LAYOUT ===== */
.playground-wrapper {
  flex: 1; 
  display: flex;
  flex-direction: row;
  gap: 0;
  padding: 0; 
  box-sizing: border-box;
  overflow: hidden; /* Prevent body scroll */
}

.editor-section,
.output-section {
  flex: 1 1 0;
  min-width: 0;
  display: flex;
  flex-direction: column;
  overflow: hidden; /* Prevent section-level scrolling */
}

.vertical-divider {
    width: 1px;
    background: var(--panel-border);
    margin: 0;
}