/* ==========================================================================
   Code Playground
   Editor, toolbar, output, and Expo Snack embed
   ========================================================================== */

/* ==========================================================================
   Playground Container
   ========================================================================== */

.playground-container {
  margin: 24px 0;
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid var(--border-color, rgba(255, 255, 255, 0.1));
  background: var(--bg-card, #22223b);
  transition: var(--transition-colors, background-color 0.3s ease);
}

/* ==========================================================================
   Toolbar
   ========================================================================== */

.playground-toolbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px 12px;
  background: var(--bg-secondary, #282c34);
  border-bottom: 1px solid var(--border-color, rgba(255, 255, 255, 0.1));
  gap: 8px;
}

.playground-toolbar-left {
  display: flex;
  align-items: center;
  gap: 8px;
}

.playground-toolbar-right {
  display: flex;
  align-items: center;
  gap: 6px;
}

.playground-lang-label {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-muted, #718096);
  padding: 2px 8px;
  border-radius: 4px;
  background: var(--accent-muted, rgba(97, 218, 251, 0.15));
  color: var(--accent, #61dafb);
}

/* ==========================================================================
   Buttons
   ========================================================================== */

.playground-run-btn {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 6px 16px;
  border-radius: 4px;
  border: none;
  background: var(--accent, #61dafb);
  color: var(--text-inverse, #1a1a2e);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: background-color 0.2s ease, transform 0.1s ease;
  -webkit-appearance: none;
  appearance: none;
}

.playground-run-btn:hover {
  background: var(--accent-hover, #79e3ff);
  transform: scale(1.03);
}

.playground-run-btn:active {
  transform: scale(0.97);
}

.playground-run-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
}

.playground-run-btn:focus-visible {
  outline: 2px solid var(--accent, #61dafb);
  outline-offset: 2px;
}

.playground-reset-btn {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 6px 16px;
  border-radius: 4px;
  border: 1px solid var(--border-color-strong, rgba(255, 255, 255, 0.2));
  background: transparent;
  color: var(--text-muted, #718096);
  font-size: 13px;
  cursor: pointer;
  transition: color 0.2s ease, border-color 0.2s ease, background-color 0.2s ease;
  -webkit-appearance: none;
  appearance: none;
}

.playground-reset-btn:hover {
  color: var(--text-secondary, #a0aec0);
  border-color: var(--text-muted, #718096);
  background: var(--bg-hover, rgba(255, 255, 255, 0.06));
}

.playground-reset-btn:active {
  transform: scale(0.97);
}

.playground-reset-btn:focus-visible {
  outline: 2px solid var(--accent, #61dafb);
  outline-offset: 2px;
}

/* Copy button */
.playground-copy-btn {
  display: inline-flex;
  align-items: center;
  padding: 6px 10px;
  border-radius: 4px;
  border: 1px solid var(--border-color, rgba(255, 255, 255, 0.1));
  background: transparent;
  color: var(--text-muted, #718096);
  font-size: 12px;
  cursor: pointer;
  transition: color 0.2s ease, border-color 0.2s ease;
  -webkit-appearance: none;
  appearance: none;
}

.playground-copy-btn:hover {
  color: var(--accent, #61dafb);
  border-color: var(--accent, #61dafb);
}

/* ==========================================================================
   Editor Area
   ========================================================================== */

.playground-editor {
  min-height: 120px;
  background: var(--bg-code, #1e1e2e);
  position: relative;
}

/* CodeMirror overrides when embedded */
.playground-editor .CodeMirror {
  height: auto;
  min-height: 120px;
  background: var(--bg-code, #1e1e2e);
  color: var(--text-primary, #e0e0e0);
  font-family: var(--font-mono, 'SFMono-Regular', Consolas, monospace);
  font-size: 13px;
  line-height: 1.6;
}

/* Plain textarea fallback */
.playground-editor textarea {
  width: 100%;
  min-height: 120px;
  padding: 12px;
  border: none;
  background: var(--bg-code, #1e1e2e);
  color: var(--text-primary, #e0e0e0);
  font-family: var(--font-mono, 'SFMono-Regular', Consolas, monospace);
  font-size: 13px;
  line-height: 1.6;
  resize: vertical;
  outline: none;
  tab-size: 2;
}

/* ==========================================================================
   Output Area
   ========================================================================== */

.playground-output {
  padding: 12px;
  font-family: var(--font-mono, 'SFMono-Regular', Consolas, monospace);
  font-size: 13px;
  line-height: 1.6;
  min-height: 40px;
  border-top: 1px solid var(--border-color, rgba(255, 255, 255, 0.1));
  background: var(--bg-tertiary, #2d3748);
  color: var(--text-secondary, #a0aec0);
  white-space: pre-wrap;
  word-break: break-word;
  overflow-x: auto;
  transition: var(--transition-colors, background-color 0.3s ease);
}

.playground-output.error {
  color: var(--error, #e94560);
}

.playground-output.success {
  color: var(--success, #4ecdc4);
}

.playground-output-label {
  display: block;
  font-size: 10px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-muted, #718096);
  margin-bottom: 6px;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

/* ==========================================================================
   Expo Snack Embed
   ========================================================================== */

.snack-embed-container {
  margin: 24px 0;
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid var(--border-color, rgba(255, 255, 255, 0.1));
  background: var(--bg-card, #22223b);
}

.snack-embed-container iframe {
  width: 100%;
  height: 500px;
  border: none;
  display: block;
}

.snack-embed-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 12px;
  background: var(--bg-secondary, #282c34);
  border-bottom: 1px solid var(--border-color, rgba(255, 255, 255, 0.1));
}

.snack-embed-title {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-secondary, #a0aec0);
}

.snack-embed-link {
  font-size: 12px;
  color: var(--accent, #61dafb);
  text-decoration: none;
}

.snack-embed-link:hover {
  text-decoration: underline;
}

/* ==========================================================================
   Snack Placeholder (Lazy Load)
   ========================================================================== */

.snack-placeholder {
  text-align: center;
  padding: 40px;
  cursor: pointer;
  border: 2px dashed var(--border-color-strong, rgba(255, 255, 255, 0.2));
  border-radius: 12px;
  margin: 24px 0;
  transition: border-color 0.2s ease, background-color 0.2s ease;
  color: var(--text-muted, #718096);
  font-size: 14px;
}

.snack-placeholder:hover {
  border-color: var(--accent, #61dafb);
  background: var(--accent-muted, rgba(97, 218, 251, 0.15));
  color: var(--accent, #61dafb);
}

.snack-placeholder-icon {
  display: block;
  font-size: 32px;
  margin-bottom: 8px;
  opacity: 0.6;
}

.snack-placeholder-text {
  font-size: 13px;
}

/* ==========================================================================
   Responsive
   ========================================================================== */

@media (max-width: 768px) {
  .playground-container {
    margin: 16px 0;
    border-radius: 8px;
  }

  .playground-toolbar {
    flex-wrap: wrap;
    padding: 6px 8px;
  }

  .playground-run-btn,
  .playground-reset-btn {
    padding: 5px 12px;
    font-size: 12px;
  }

  .playground-output {
    padding: 10px;
    font-size: 12px;
  }

  .snack-embed-container iframe {
    height: 400px;
  }

  .snack-placeholder {
    padding: 24px;
  }
}