/* =========================================================
   editor.css — Styles for the Code Lab (mini CodePen)
   ========================================================= */

.codelab {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
  background: #0f172a;
  padding: 16px;
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
}

.editors {
  display: grid;
  grid-template-rows: 1fr 1fr 1fr;
  gap: 12px;
  min-height: 520px;
}

.editor-block {
  display: flex;
  flex-direction: column;
  background: #111827;
  border: 1px solid #1f2937;
  border-radius: 10px;
  overflow: hidden;
}

.editor-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 12px;
  background: #0b1220;
  border-bottom: 1px solid #1f2937;
}

.editor-tag {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 4px 8px;
  border-radius: 6px;
  color: white;
}
.tag-html { background: #ef4444; }
.tag-css { background: #3b82f6; }
.tag-js { background: #f59e0b; color: #1f2937; }
.tag-preview { background: #10b981; }

.editor-block textarea {
  flex: 1;
  width: 100%;
  resize: none;
  border: none;
  outline: none;
  background: #0b1220;
  color: #e2e8f0;
  padding: 12px 14px;
  font-family: "Consolas", "Monaco", "Courier New", monospace;
  font-size: 0.9rem;
  line-height: 1.55;
  tab-size: 2;
}
.editor-block textarea:focus {
  background: #0f172a;
}

/* Preview side */
.preview-block {
  display: flex;
  flex-direction: column;
  background: white;
  border-radius: 10px;
  overflow: hidden;
  min-height: 520px;
  border: 1px solid #1f2937;
}

.preview-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 12px;
  background: #0b1220;
  border-bottom: 1px solid #1f2937;
  flex-wrap: wrap;
  gap: 8px;
}

.lab-buttons {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

.codelab:fullscreen,
.codelab:-webkit-full-screen {
  width: 100%;
  height: 100%;
  max-width: none;
  margin: 0;
  padding: 20px;
  border-radius: 0;
  align-items: stretch;
}

.codelab:fullscreen .editors,
.codelab:-webkit-full-screen .editors,
.codelab:fullscreen .preview-block,
.codelab:-webkit-full-screen .preview-block {
  min-height: calc(100vh - 40px);
}

.codelab:fullscreen .editor-block,
.codelab:-webkit-full-screen .editor-block,
.codelab:fullscreen .preview-block,
.codelab:-webkit-full-screen .preview-block {
  height: 100%;
}

.codelab:fullscreen #preview-frame,
.codelab:-webkit-full-screen #preview-frame {
  min-height: 0;
}

#preview-frame {
  flex: 1;
  width: 100%;
  border: none;
  background: white;
}

/* Presentation mode tweaks */
body.presentation-mode .editor-block textarea { font-size: 1.05rem; }

/* Responsive */
@media (max-width: 960px) {
  .codelab { grid-template-columns: 1fr; }
  .editors { min-height: auto; }
  .editor-block textarea { min-height: 160px; }
  .preview-block { min-height: 360px; }
}