/* Inkpen Editor Styles
 * ========================================================================== */

/* CSS Custom Properties (override these in your app) */
:root {
  --inkpen-font-family: inherit;
  --inkpen-font-size: 1rem;
  --inkpen-line-height: 1.6;
  --inkpen-color-text: #1a1a1a;
  --inkpen-color-text-muted: #6b7280;
  --inkpen-color-background: #ffffff;
  --inkpen-color-border: #e5e7eb;
  --inkpen-color-primary: #3b82f6;
  --inkpen-color-selection: rgba(59, 130, 246, 0.2);
  --inkpen-radius: 0.375rem;
  --inkpen-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --inkpen-toolbar-bg: #ffffff;
  --inkpen-toolbar-border: #e5e7eb;
}

/* Dark mode support */
@media (prefers-color-scheme: dark) {
  :root {
    --inkpen-color-text: #f3f4f6;
    --inkpen-color-text-muted: #9ca3af;
    --inkpen-color-background: #1f2937;
    --inkpen-color-border: #374151;
    --inkpen-toolbar-bg: #1f2937;
    --inkpen-toolbar-border: #374151;
  }
}

/* Editor Container */
.inkpen-editor {
  position: relative;
  font-family: var(--inkpen-font-family);
  font-size: var(--inkpen-font-size);
  line-height: var(--inkpen-line-height);
  color: var(--inkpen-color-text);
  background: var(--inkpen-color-background);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

/* Content Area */
.inkpen-editor__content {
  outline: none;
  min-height: 200px;
  padding: 1rem;
  overflow-y: auto;
  overflow-x: hidden;
  flex: 1 1 auto;
  /* Ensure content respects parent max-height */
  max-height: inherit;
}

/* ProseMirror editor element inside content area */
.inkpen-editor__content .ProseMirror {
  outline: none;
  min-height: 100%;
}

/* Fixed toolbar layout */
.inkpen-editor--fixed-toolbar {
  border: 1px solid var(--inkpen-toolbar-border);
  border-radius: var(--inkpen-radius);
}

.inkpen-editor--fixed-toolbar .inkpen-toolbar--fixed {
  flex-shrink: 0;
}

.inkpen-editor--fixed-toolbar .inkpen-editor__content {
  flex: 1 1 0;
  min-height: 0; /* Important: allows flex child to shrink below content size */
  overflow-y: auto;
}

/* TipTap Placeholder Extension Styles */
.inkpen-editor__content .is-empty::before {
  content: attr(data-placeholder);
  color: var(--inkpen-color-text-muted);
  float: left;
  height: 0;
  pointer-events: none;
}

/* Title placeholder - larger, more prominent */
.inkpen-editor__content h1.is-empty::before {
  font-size: 2rem;
  font-weight: 600;
}

/* Subtitle placeholder - slightly smaller, italic */
.inkpen-editor__content h2.is-empty::before {
  font-size: 1.5rem;
  font-weight: 400;
  font-style: italic;
}

/* Legacy fallback */
.inkpen-editor__content:empty::before {
  content: attr(data-placeholder);
  color: var(--inkpen-color-text-muted);
  pointer-events: none;
}

/* Focus state */
.inkpen-editor__content:focus {
  outline: none;
}

/* Floating Toolbar - uses TipTap's BubbleMenu with Tippy.js */
.inkpen-toolbar--floating {
  display: flex;
  gap: 0.25rem;
  padding: 0.375rem;
  background: var(--inkpen-toolbar-bg);
  border: 1px solid var(--inkpen-toolbar-border);
  border-radius: var(--inkpen-radius);
  box-shadow: var(--inkpen-shadow);
}

/* Fixed Toolbar - always visible above editor */
.inkpen-toolbar--fixed {
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem;
  padding: 0.5rem;
  background: var(--inkpen-toolbar-bg);
  border: 1px solid var(--inkpen-toolbar-border);
  border-bottom: none;
  border-radius: var(--inkpen-radius) var(--inkpen-radius) 0 0;
}

/* Editor container with fixed toolbar */
.inkpen-editor--fixed-toolbar .inkpen-editor__content {
  border: 1px solid var(--inkpen-toolbar-border);
  border-radius: 0 0 var(--inkpen-radius) var(--inkpen-radius);
}

/* Tippy.js theme for inkpen toolbar */
.tippy-box[data-theme~='inkpen'] {
  background-color: var(--inkpen-toolbar-bg);
  border: 1px solid var(--inkpen-toolbar-border);
  border-radius: var(--inkpen-radius);
  box-shadow: var(--inkpen-shadow);
}

.tippy-box[data-theme~='inkpen'] > .tippy-arrow::before {
  border-top-color: var(--inkpen-toolbar-bg);
}

.tippy-box[data-theme~='inkpen'] > .tippy-content {
  padding: 0;
}

/* Toolbar Buttons */
.inkpen-toolbar__button {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2rem;
  height: 2rem;
  padding: 0;
  background: transparent;
  border: none;
  border-radius: var(--inkpen-radius);
  color: var(--inkpen-color-text);
  cursor: pointer;
  transition: background-color 150ms;
}

.inkpen-toolbar__button:hover {
  background: var(--inkpen-color-selection);
}

.inkpen-toolbar__button.is-active {
  background: var(--inkpen-color-primary);
  color: white;
}

.inkpen-toolbar__button svg {
  width: 1rem;
  height: 1rem;
}

.inkpen-toolbar__divider {
  width: 1px;
  height: 1.5rem;
  background: var(--inkpen-color-border);
  margin: 0 0.25rem;
}

/* ==========================================================================
   Content Styles (inside editor)
   ========================================================================== */

.inkpen-editor__content {
  /* Headings */
  h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.3;
    margin-top: 1.5rem;
    margin-bottom: 0.5rem;
  }

  h1 { font-size: 2rem; }
  h2 { font-size: 1.5rem; }
  h3 { font-size: 1.25rem; }
  h4 { font-size: 1rem; }

  /* Paragraphs */
  p {
    margin-bottom: 1rem;
  }

  /* Lists */
  ul, ol {
    margin-bottom: 1rem;
    padding-left: 1.5rem;
  }

  li {
    margin-bottom: 0.25rem;
  }

  /* Task Lists (TipTap TaskList extension)
   * Uses .inkpen-task-list and .inkpen-task-item classes from TipTap config
   * High specificity via nesting to avoid !important */
  ul.inkpen-task-list,
  ul[data-type="taskList"] {
    list-style-type: none;
    padding-left: 0;
    margin: 0 0 1rem 0;
  }

  /* Reset any browser default markers */
  ul.inkpen-task-list li,
  ul[data-type="taskList"] li {
    list-style-type: none;
  }

  li.inkpen-task-item,
  li[data-type="taskItem"] {
    display: flex;
    flex-direction: row;
    align-items: flex-start;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
  }

  /* Hide any list markers/bullets */
  li.inkpen-task-item::before,
  li[data-type="taskItem"]::before {
    content: none;
  }

  li.inkpen-task-item::marker,
  li[data-type="taskItem"]::marker {
    content: none;
  }

  /* Checkbox label container */
  li.inkpen-task-item > label,
  li[data-type="taskItem"] > label {
    flex: 0 0 auto;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin-top: 0.125rem;
    user-select: none;
    cursor: pointer;
  }

  /* Checkbox input */
  li.inkpen-task-item > label input[type="checkbox"],
  li[data-type="taskItem"] > label input[type="checkbox"] {
    width: 1.125rem;
    height: 1.125rem;
    cursor: pointer;
    accent-color: var(--inkpen-color-primary);
    margin: 0;
    padding: 0;
    border-radius: 0.25rem;
  }

  /* Content area - where user types (contenteditable div) */
  li.inkpen-task-item > div,
  li[data-type="taskItem"] > div {
    flex: 1 1 auto;
    min-width: 0;
    outline: none;
    word-break: break-word;
  }

  /* Paragraph inside task item - reset margins for inline feel */
  li.inkpen-task-item > div p,
  li[data-type="taskItem"] > div p {
    margin: 0;
    padding: 0;
  }

  /* Checked state - strikethrough */
  li.inkpen-task-item[data-checked="true"] > div,
  li[data-type="taskItem"][data-checked="true"] > div {
    text-decoration: line-through;
    color: var(--inkpen-color-text-muted);
  }

  /* Nested task lists */
  ul.inkpen-task-list ul.inkpen-task-list,
  ul[data-type="taskList"] ul[data-type="taskList"] {
    margin-top: 0.5rem;
    margin-bottom: 0;
    padding-left: 1.5rem;
  }

  /* Blockquote */
  blockquote {
    border-left: 3px solid var(--inkpen-color-border);
    margin: 1rem 0;
    padding: 0.5rem 1rem;
    font-style: italic;
    color: var(--inkpen-color-text-muted);
  }

  /* Code */
  code {
    background: var(--inkpen-color-selection);
    padding: 0.125rem 0.25rem;
    border-radius: 0.25rem;
    font-family: ui-monospace, SFMono-Regular, "SF Mono", Menlo, monospace;
    font-size: 0.875em;
  }

  pre {
    background: var(--inkpen-color-border);
    padding: 1rem;
    border-radius: var(--inkpen-radius);
    overflow-x: auto;
    margin: 1rem 0;

    code {
      background: none;
      padding: 0;
    }
  }

  /* Links */
  a {
    color: var(--inkpen-color-primary);
    text-decoration: underline;
  }

  /* Highlight mark */
  mark,
  .inkpen-highlight {
    background-color: #fef08a;
    padding: 0.125em 0;
    border-radius: 0.125rem;
  }

  /* Multicolor highlights */
  mark[data-color="yellow"],
  .inkpen-highlight[data-color="yellow"] {
    background-color: #fef08a;
  }

  mark[data-color="green"],
  .inkpen-highlight[data-color="green"] {
    background-color: #bbf7d0;
  }

  mark[data-color="blue"],
  .inkpen-highlight[data-color="blue"] {
    background-color: #bfdbfe;
  }

  mark[data-color="pink"],
  .inkpen-highlight[data-color="pink"] {
    background-color: #fbcfe8;
  }

  mark[data-color="purple"],
  .inkpen-highlight[data-color="purple"] {
    background-color: #ddd6fe;
  }

  mark[data-color="orange"],
  .inkpen-highlight[data-color="orange"] {
    background-color: #fed7aa;
  }

  /* Horizontal Rule */
  hr {
    border: none;
    border-top: 1px solid var(--inkpen-color-border);
    margin: 2rem 0;
  }

  /* Tables */
  table {
    width: 100%;
    border-collapse: collapse;
    margin: 1rem 0;
  }

  th, td {
    border: 1px solid var(--inkpen-color-border);
    padding: 0.5rem 1rem;
    text-align: left;
  }

  th {
    background: var(--inkpen-color-selection);
    font-weight: 600;
  }

  /* Images */
  img {
    max-width: 100%;
    height: auto;
    border-radius: var(--inkpen-radius);
  }

  /* Selection */
  ::selection {
    background: var(--inkpen-color-selection);
  }

  /* Callout Boxes */
  .inkpen-callout {
    display: flex;
    gap: 0.75rem;
    padding: 1rem;
    border-radius: var(--inkpen-radius);
    margin: 1rem 0;
    background: var(--inkpen-color-border);
    border-left: 4px solid var(--inkpen-color-primary);
  }

  .inkpen-callout__icon {
    flex-shrink: 0;
    font-size: 1.25rem;
    line-height: 1.5;
  }

  .inkpen-callout__content {
    flex: 1;
    min-width: 0;

    p {
      margin: 0;
    }
  }

  .inkpen-callout--info {
    background: rgba(59, 130, 246, 0.1);
    border-left-color: #3b82f6;
  }

  .inkpen-callout--warning {
    background: rgba(245, 158, 11, 0.1);
    border-left-color: #f59e0b;
  }

  .inkpen-callout--tip {
    background: rgba(16, 185, 129, 0.1);
    border-left-color: #10b981;
  }

  .inkpen-callout--note {
    background: rgba(139, 92, 246, 0.1);
    border-left-color: #8b5cf6;
  }

  /* HTML Block */
  .inkpen-html-block {
    padding: 1rem;
    margin: 1rem 0;
    border: 1px dashed var(--inkpen-color-border);
    border-radius: var(--inkpen-radius);
    background: var(--inkpen-color-background);
    position: relative;
  }

  .inkpen-html-block::before {
    content: "HTML";
    position: absolute;
    top: -0.75em;
    left: 0.5rem;
    padding: 0 0.25rem;
    font-size: 0.625rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--inkpen-color-text-muted);
    background: var(--inkpen-color-background);
  }
}

/* Context-Aware Toolbar Styles */
.inkpen-toolbar[data-context="table"] {
  min-width: 400px;
}

.inkpen-toolbar[data-context="code"] {
  min-width: 150px;
}

.inkpen-toolbar[data-context="image"] {
  min-width: 180px;
}

/* Fallback Textarea
   Shown when TipTap fails to initialize (CDN issues, JS errors, etc.)
   ========================================================================== */
.inkpen-editor__fallback {
  width: 100%;
  min-height: 200px;
  padding: 1rem;
  border: 1px solid var(--inkpen-color-border);
  border-radius: var(--inkpen-radius);
  font-family: var(--inkpen-font-family);
  font-size: var(--inkpen-font-size);
  line-height: var(--inkpen-line-height);
  color: var(--inkpen-color-text);
  background: var(--inkpen-color-background);
  resize: vertical;
  outline: none;
  transition: border-color 150ms ease;
}

.inkpen-editor__fallback:focus {
  border-color: var(--inkpen-color-primary);
  box-shadow: 0 0 0 3px var(--inkpen-color-selection);
}

.inkpen-editor__fallback::placeholder {
  color: var(--inkpen-color-text-muted);
}

/* ============================================
   Markdown Mode Styles
   ============================================ */

/* Mode Toggle Button */
.inkpen-mode-toggle {
  display: flex;
  gap: 2px;
  padding: 4px;
  background: var(--inkpen-toggle-bg, #f5f5f5);
  border-radius: 8px;
  width: fit-content;
  margin-bottom: 12px;
}

.inkpen-mode-toggle button {
  padding: 6px 12px;
  border: none;
  background: transparent;
  font-size: 13px;
  font-weight: 500;
  color: var(--inkpen-color-text-muted);
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.15s ease;
}

.inkpen-mode-toggle button:hover {
  color: var(--inkpen-color-text);
  background: rgba(0, 0, 0, 0.05);
}

.inkpen-mode-toggle button.active {
  background: var(--inkpen-color-background);
  color: var(--inkpen-color-text);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

/* Markdown Editor Textarea */
.inkpen-markdown-editor {
  width: 100%;
  min-height: 300px;
  padding: 16px;
  font-family: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
  font-size: 14px;
  line-height: 1.6;
  color: var(--inkpen-color-text);
  background: var(--inkpen-color-background);
  border: 1px solid var(--inkpen-color-border);
  border-radius: var(--inkpen-radius);
  resize: vertical;
  outline: none;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.inkpen-markdown-editor:focus {
  border-color: var(--inkpen-color-primary);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15);
}

.inkpen-markdown-editor::placeholder {
  color: var(--inkpen-color-text-muted);
}

.inkpen-markdown-editor.hidden {
  display: none;
}

/* Split View Layout */
.inkpen-editor--split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.inkpen-editor--split .inkpen-markdown-editor,
.inkpen-editor--split .inkpen-editor__content {
  min-height: 400px;
  max-height: 600px;
  overflow-y: auto;
}

/* Responsive: Stack on mobile */
@media (max-width: 768px) {
  .inkpen-editor--split {
    grid-template-columns: 1fr;
  }

  .inkpen-editor--split .inkpen-markdown-editor,
  .inkpen-editor--split .inkpen-editor__content {
    min-height: 250px;
    max-height: 400px;
  }
}

/* Keyboard Shortcut Hints */
.inkpen-mode-toggle [data-shortcut]::after {
  content: attr(data-shortcut);
  font-size: 10px;
  color: var(--inkpen-color-text-muted);
  margin-left: 6px;
  opacity: 0;
  transition: opacity 0.15s ease;
}

.inkpen-mode-toggle:hover [data-shortcut]::after {
  opacity: 0.7;
}