/* =========================================================
   Markdown Editor — Tool-specific styles
   ========================================================= */

/* ---------------------------------------------------------
   Toolbar
   --------------------------------------------------------- */
.md-toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--sp-1);
  padding: var(--sp-2) var(--sp-3);
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border-solid);
  border-radius: var(--radius) var(--radius) 0 0;
}

.md-toolbar__btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--color-text-muted);
  background: transparent;
  border: 1px solid transparent;
  transition:
    background var(--dur-fast) var(--ease),
    color var(--dur-fast) var(--ease),
    border-color var(--dur-fast) var(--ease);
  cursor: pointer;
  position: relative;
}

.md-toolbar__btn:hover {
  background: var(--color-bg-hover);
  color: var(--color-text-strong);
  border-color: var(--color-border-solid);
}

.md-toolbar__btn:active {
  background: var(--color-accent-dim);
  color: var(--color-accent);
  border-color: var(--color-accent);
}

.md-toolbar__sep {
  width: 1px;
  height: 20px;
  background: var(--color-border-solid);
  margin-inline: var(--sp-1);
  flex-shrink: 0;
}

.md-toolbar__spacer {
  flex: 1;
}

.md-toolbar__action-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
  padding: var(--sp-1) var(--sp-3);
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--color-text-muted);
  background: transparent;
  border: 1px solid var(--color-border-solid);
  cursor: pointer;
  transition:
    background var(--dur-fast) var(--ease),
    color var(--dur-fast) var(--ease),
    border-color var(--dur-fast) var(--ease);
  white-space: nowrap;
}

.md-toolbar__action-btn:hover {
  background: var(--color-bg-hover);
  color: var(--color-text-strong);
  border-color: var(--color-text-muted);
}

.md-toolbar__action-btn--primary {
  color: var(--color-accent);
  border-color: var(--color-accent);
}

.md-toolbar__action-btn--primary:hover {
  background: var(--color-accent-dim);
  color: var(--color-accent-hover);
  border-color: var(--color-accent-hover);
}

/* ---------------------------------------------------------
   Editor layout — split pane
   --------------------------------------------------------- */
.md-editor-wrap {
  /* Override tool-container default padding */
  padding: 0 !important;
  min-height: unset !important;
}

/* ---------------------------------------------------------
   Fullscreen mode
   --------------------------------------------------------- */
.md-editor-wrap.is-fullscreen {
  position: fixed;
  inset: 0;
  z-index: 900;
  border-radius: 0 !important;
  border: none !important;
  display: flex;
  flex-direction: column;
}

.md-editor-wrap.is-fullscreen .md-toolbar {
  border-radius: 0;
  flex-shrink: 0;
}

.md-editor-wrap.is-fullscreen .md-panes {
  flex: 1;
  height: auto;
  max-height: none;
  min-height: 0;
}

.md-editor-wrap.is-fullscreen .md-statusbar {
  border-radius: 0;
}

/* Active state for the fullscreen button */
.md-toolbar__btn--fullscreen[aria-pressed="true"] {
  background: var(--color-accent-dim);
  color: var(--color-accent);
  border-color: var(--color-accent);
}

.md-panes {
  display: grid;
  grid-template-columns: 1fr 1fr;
  min-height: 560px;
  height: calc(100vh - 400px);
  min-height: 400px;
  max-height: 800px;
}

@media (max-width: 768px) {
  .md-panes {
    grid-template-columns: 1fr;
    height: auto;
    max-height: none;
  }
}

.md-pane {
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.md-pane--editor {
  border-right: 1px solid var(--color-border-solid);
}

@media (max-width: 768px) {
  .md-pane--editor {
    border-right: none;
    border-bottom: 1px solid var(--color-border-solid);
  }
}

.md-pane__header {
  display: flex;
  align-items: center;
  gap: var(--sp-2);
  padding: var(--sp-2) var(--sp-4);
  background: var(--color-bg-elevated);
  border-bottom: 1px solid var(--color-border-solid);
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  flex-shrink: 0;
  user-select: none;
}

.md-pane__header-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-accent);
  opacity: 0.7;
  flex-shrink: 0;
}

.md-pane__header-dot--preview {
  background: #a78bfa;
}

.md-wordcount {
  margin-left: auto;
  font-weight: 400;
  opacity: 0.7;
}

/* ---------------------------------------------------------
   Textarea (write pane)
   --------------------------------------------------------- */
.md-textarea {
  flex: 1;
  width: 100%;
  padding: var(--sp-6);
  background: var(--color-bg-card);
  color: var(--color-text);
  font-family: var(--font-mono);
  font-size: 0.9rem;
  line-height: 1.75;
  border: none;
  outline: none;
  resize: none;
  tab-size: 2;
  caret-color: var(--color-accent);
}

.md-textarea::placeholder {
  color: var(--color-text-subtle);
}

@media (max-width: 768px) {
  .md-textarea {
    min-height: 280px;
  }
}

/* ---------------------------------------------------------
   Preview pane
   --------------------------------------------------------- */
.md-preview {
  flex: 1;
  padding: var(--sp-6);
  background: var(--color-bg-card);
  overflow-y: auto;
  line-height: 1.75;
  color: var(--color-text);
}

/* Markdown rendered content styles */
.md-preview h1,
.md-preview h2,
.md-preview h3,
.md-preview h4,
.md-preview h5,
.md-preview h6 {
  font-family: var(--font-heading);
  color: var(--color-text-heading);
  line-height: 1.3;
  margin-top: 1.5em;
  margin-bottom: 0.5em;
}

.md-preview h1 { font-size: 1.75rem; font-weight: 800; margin-top: 0; }
.md-preview h2 { font-size: 1.35rem; font-weight: 700; }
.md-preview h3 { font-size: 1.1rem; font-weight: 700; }
.md-preview h4 { font-size: 1rem; font-weight: 600; }
.md-preview h5, .md-preview h6 { font-size: 0.9rem; font-weight: 600; }

.md-preview p {
  margin-bottom: 0.85em;
}

.md-preview a {
  color: var(--color-accent);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.md-preview a:hover {
  color: var(--color-accent-hover);
}

.md-preview strong { color: var(--color-text-strong); }
.md-preview em { font-style: italic; }
.md-preview del { text-decoration: line-through; opacity: 0.65; }

.md-preview ul,
.md-preview ol {
  padding-left: 1.5em;
  margin-bottom: 0.85em;
}

.md-preview ul { list-style: disc; }
.md-preview ol { list-style: decimal; }

.md-preview li {
  margin-bottom: 0.3em;
  line-height: 1.65;
}

.md-preview blockquote {
  border-left: 3px solid var(--color-accent);
  margin-left: 0;
  padding: var(--sp-2) var(--sp-4);
  color: var(--color-text-muted);
  background: var(--color-accent-dim);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  margin-bottom: 0.85em;
}

.md-preview hr {
  border: none;
  border-top: 1px solid var(--color-border-solid);
  margin: 1.5em 0;
}

.md-preview table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
  margin-bottom: 0.85em;
}

.md-preview th,
.md-preview td {
  border: 1px solid var(--color-border-solid);
  padding: var(--sp-2) var(--sp-3);
  text-align: left;
}

.md-preview th {
  background: var(--color-bg-elevated);
  font-weight: 700;
  color: var(--color-text-heading);
}

.md-preview tr:nth-child(even) td {
  background: var(--color-bg-elevated);
}

.md-preview img {
  max-width: 100%;
  border-radius: var(--radius);
  margin-block: 0.5em;
}

/* Inline code */
.md-preview code {
  font-family: var(--font-mono);
  font-size: 0.85em;
  background: var(--color-bg-elevated);
  color: var(--color-accent);
  padding: 0.1em 0.35em;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border-solid);
}

/* Code blocks (hljs wraps in <pre><code>) */
.md-preview pre {
  margin-bottom: 0.85em;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--color-border-solid);
}

.md-preview pre code {
  display: block;
  padding: var(--sp-4) var(--sp-5);
  background: #0d1117;
  color: #e6edf3;
  font-size: 0.85rem;
  line-height: 1.6;
  overflow-x: auto;
  border: none;
  border-radius: 0;
}

:root[data-theme="light"] .md-preview pre code {
  background: #f6f8fa;
  color: #24292f;
}

/* Empty state */
.md-preview-empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100%;
  gap: var(--sp-3);
  color: var(--color-text-subtle);
  font-size: 0.9rem;
  text-align: center;
}

.md-preview-empty__icon {
  font-size: 2.5rem;
  line-height: 1;
  opacity: 0.5;
}

/* ---------------------------------------------------------
   Status bar (bottom)
   --------------------------------------------------------- */
.md-statusbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--sp-2) var(--sp-4);
  background: var(--color-bg-elevated);
  border-top: 1px solid var(--color-border-solid);
  font-size: 0.75rem;
  color: var(--color-text-muted);
  flex-shrink: 0;
  border-radius: 0 0 var(--radius-lg) var(--radius-lg);
  gap: var(--sp-4);
  flex-wrap: wrap;
}

.md-statusbar__left {
  display: flex;
  align-items: center;
  gap: var(--sp-4);
}

.md-statusbar__saved {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-1);
  color: #34d399;
  opacity: 0;
  transition: opacity var(--dur-base) var(--ease);
}

.md-statusbar__saved.is-visible {
  opacity: 1;
}

/* ---------------------------------------------------------
   Toast notification
   --------------------------------------------------------- */
.md-toast {
  position: fixed;
  bottom: var(--sp-6);
  left: 50%;
  transform: translateX(-50%) translateY(8px);
  background: var(--color-bg-elevated);
  color: var(--color-text-strong);
  border: 1px solid var(--color-border-solid);
  border-radius: var(--radius);
  padding: var(--sp-3) var(--sp-5);
  font-size: 0.875rem;
  font-weight: 500;
  box-shadow: var(--shadow-lg);
  opacity: 0;
  pointer-events: none;
  transition:
    opacity var(--dur-base) var(--ease),
    transform var(--dur-base) var(--ease);
  z-index: 1000;
  white-space: nowrap;
}

.md-toast.is-visible {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}