/* ============================================================================ */
/* HTML Embed NodeView                                                        */
/* ============================================================================ */

.embed-view {
  border: 1px solid var(--border-color);
  border-radius: 8px;
  overflow: hidden;
  margin: 0.75em 0;
  user-select: none;
  background: var(--surface-bg);
}

/* --- Header --- */

.embed-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 6px 12px;
  border-bottom: 1px solid var(--border-color);
  background: var(--surface-bg);
  gap: 8px;
}

.embed-header-left {
  display: flex;
  align-items: center;
  gap: 6px;
  min-width: 0;
}

.embed-header-icon {
  font-size: 14px;
  line-height: 1;
  flex-shrink: 0;
}

.embed-header-label {
  font-size: 12px;
  font-weight: 600;
  color: var(--muted-color);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.embed-header-src {
  font-size: 11px;
  color: var(--muted-color);
  opacity: 0.6;
  font-family: var(--font-mono);
  white-space: nowrap;
}

.embed-header-actions {
  display: flex;
  gap: 4px;
  flex-shrink: 0;
}

/* --- Buttons --- */

.embed-btn {
  background: none;
  border: 1px solid var(--border-color);
  border-radius: 4px;
  padding: 2px 10px;
  font-size: 11px;
  color: var(--muted-color);
  cursor: pointer;
  white-space: nowrap;
  transition: background 120ms ease, color 120ms ease;
}

.embed-btn:hover {
  background: var(--border-color);
  color: var(--text-color);
}

.embed-btn-primary {
  background: var(--primary-color);
  color: var(--on-primary);
  border-color: var(--primary-color);
}

.embed-btn-primary:hover {
  opacity: 0.9;
}

/* --- Settings panel --- */

.embed-settings {
  padding: 8px 12px;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  gap: 6px;
  background: var(--surface-bg);
}

.embed-field-row {
  display: flex;
  align-items: center;
  gap: 8px;
}

.embed-field-checkbox {
  font-size: 12px;
  color: var(--muted-color);
  cursor: pointer;
  gap: 6px;
}

.embed-field-checkbox input {
  accent-color: var(--primary-color);
}

.embed-field-label {
  font-size: 12px;
  color: var(--muted-color);
  min-width: 80px;
  flex-shrink: 0;
}

.embed-field-input {
  background: transparent;
  border: 1px solid var(--border-color);
  border-radius: 4px;
  color: var(--text-color);
  font-size: 13px;
  padding: 3px 8px;
  outline: none;
  flex: 1;
  min-width: 0;
}

.embed-field-input:focus {
  border-color: var(--primary-color);
}

/* --- Preview area --- */

.embed-preview {
  position: relative;
  padding: 16px;
  overflow: hidden;
}

.embed-iframe {
  width: 100%;
  border: none;
  display: block;
  border-radius: 4px;
  background: transparent;
  /* Isolate iframe layout changes so height updates from ResizeObserver
     don't propagate reflows up to the scroll container. */
  contain: layout style;
}

/* --- Empty state --- */

.embed-empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 32px 24px;
  color: var(--muted-color);
  font-size: 13px;
  text-align: center;
}

.embed-empty-icon {
  font-size: 24px;
  opacity: 0.5;
}

.embed-empty code {
  font-family: var(--font-mono);
  font-size: 12px;
  background: var(--code-bg);
  padding: 1px 5px;
  border-radius: 3px;
}