/*
 * editor.css
 * -----------
 * Editor panel, textarea, preview panel, preview toolbar,
 * preview container, empty state.
 * 
 * Design Tokens from reflct.co DESIGN.md
 */

/* ── Markdown Input Container ── */
.editor-composer {
  display: flex;
  flex: 1;
  min-height: 0;
  flex-direction: column;
  margin: var(--space-6);
  padding: var(--space-6);
  gap: var(--space-4);
  background: var(--color-surface);
  border: 1px solid var(--color-border-default);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-1);
  transition: all var(--motion-fast);
}

.editor-composer:focus-within {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px var(--color-accent-light), var(--shadow-2);
}

.markdown-input-container {
  flex: 1;
  min-height: 0;
  overflow: hidden;
  padding: 0;
  background: transparent;
}

.editor-header {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 0;
  background: transparent;
  border-bottom: none;
}

.document-title-input {
  width: 100%;
  padding: var(--space-4) var(--space-5);
  border: 1px solid var(--color-border-default);
  border-radius: var(--radius-sm);
  font-size: var(--font-size-lg);
  font-weight: 600;
  background: var(--color-surface);
  color: var(--color-text-primary);
  transition: all var(--motion-fast);
}

.document-title-input:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px var(--color-accent-light);
}

.editor-toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding-bottom: 0;
}

.editor-tool-btn {
  padding: var(--space-2) var(--space-4);
  border: 1px solid var(--color-border-default);
  border-radius: var(--radius-xs);
  background: var(--color-surface);
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
  font-family:  var(--font-sans);
  cursor: pointer;
  transition: all var(--motion-instant);
}

.editor-tool-btn:hover {
  color: var(--color-text-primary);
  border-color: var(--color-accent);
  transform: translateY(-1px);
}

.editor-tool-btn:active {
  transform: translateY(0);
}

.markdown-input {
  width: 100%;
  height: 100%;
  padding: 0;
  border: none;
  border-radius: 0;
  font-family: var(--font-mono);
  font-size: var(--font-size-md);
  line-height: 1.7;
  resize: none;
  background: transparent;
  color: var(--color-text-primary);
  transition: background var(--motion-instant);
}

.markdown-input:focus {
  outline: none;
  box-shadow: none;
}

.markdown-input.drag-over {
  background: var(--color-accent-light);
}

.markdown-input::placeholder {
  color: var(--color-text-tertiary);
  font-size: var(--font-size-sm);
}

/* ── Preview Toolbar ── */
.preview-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-3) var(--space-6);
  border-bottom: 1px solid var(--color-border-default);
  background: var(--color-surface);
  flex-shrink: 0;
}

/* ── Device Toggle ── */
.device-toggle {
  display: flex;
  gap: 0;
  background: var(--color-surface-raised);
  border-radius: var(--radius-xs);
  padding: var(--space-1);
  border: 1px solid var(--color-border-default);
}

.device-toggle-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: var(--space-8);
  height: 26px;
  background: transparent;
  border: none;
  border-radius: var(--radius-sm);
  color: var(--color-text-tertiary);
  cursor: pointer;
  transition: all var(--motion-instant);
}

.device-toggle-btn svg { width: 14px; height: 14px; }

.device-toggle-btn:hover {
  color: var(--color-text-primary);
  transform: translateY(-1px);
}

.device-toggle-btn.active {
  background: var(--color-surface);
  color: var(--color-accent);
  box-shadow: var(--shadow-1);
}

.device-toggle-btn:active {
  transform: translateY(0);
}

/* ── Copy Button ── */
.copy-btn {
  padding: var(--space-3) var(--space-7);
  background: var(--color-accent);
  color: white;
  border: none;
  border-radius: var(--radius-xs);
  font-size: var(--font-size-md);
  font-weight: 600;
  cursor: pointer;
  transition: all var(--motion-instant);
}

.copy-btn:hover {
  background: var(--color-accent-hover);
  transform: translateY(-1px);
  box-shadow: var(--shadow-2);
}

.copy-btn:disabled {
  background: var(--color-border-default);
  cursor: not-allowed;
  transform: none;
}

.copy-btn.success {
  background: #3d6348;
}

.copy-buttons {
  display: flex;
  gap: var(--space-3);
}

.twitter-btn {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  background: var(--color-surface-base);
  color: var(--color-text-inverse);
  border-radius: var(--radius-xs);
}

.twitter-btn:hover {
  background: #333;
  transform: translateY(-1px);
  box-shadow: var(--shadow-2);
}

.twitter-btn:disabled {
  background: var(--color-border-default);
  color: var(--color-text-tertiary);
}

/* ── Preview Content ── */
.preview-content {
  flex: 1;
  overflow-y: auto;
  padding: var(--space-6);
  background: var(--color-surface-raised);
  position: relative;
  min-height: 0;
}

.preview-container {
  max-width: var(--preview-width-desktop);
  margin: 0 auto;
  padding: var(--space-8) var(--space-8) var(--space-xl);
  background: var(--color-surface);
  min-height: 100%;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-1);
}

.preview-container.mobile-mode {
  max-width: var(--preview-width-mobile);
  border-left: 1px solid var(--color-border-default);
  border-right: 1px solid var(--color-border-default);
  border-radius: var(--radius-sm);
}

.preview-container .md-code-block-header {
  display: flex;
  align-items: center;
  gap: 8px;
}

.preview-container .md-code-block-decorations {
  display: flex;
  gap: 6px;
}

.preview-container .md-code-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  display: inline-block;
}

.preview-container .dot-red { background: #ff5f56; }
.preview-container .dot-yellow { background: #ffbd2e; }
.preview-container .dot-green { background: #27c93f; }

.preview-container .md-code-block-copy:hover {
  opacity: 0.85;
}

/* ── Empty State ── */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100%;
  padding: var(--space-xl);
  color: var(--color-tertiary);
}

.empty-state-icon {
  width: 48px;
  height: 48px;
  margin-bottom: var(--space-md);
  opacity: 0.25;
}

.empty-state h3 {
  font-size: 14px;
  font-weight: 500;
  color: var(--color-secondary);
  margin-bottom: var(--space-xs);
}

.empty-state p {
  font-size: 14px;
  color: var(--color-tertiary);
}

/* ── Responsive ── */
@media (max-width: 768px) {
  .editor-header { padding: var(--space-sm) var(--space-sm) 0; }
  .editor-toolbar { gap: 6px; padding-bottom: var(--space-sm); }
  .editor-tool-btn { font-size: 11px; padding: 5px 8px; }
  .markdown-input-container { padding: var(--space-sm); }
  .markdown-input { font-size: 13px; padding: var(--space-sm); }
  .preview-container { padding: 16px; }
}