/* ============================================
   Blog Editor - Stylesheet
   A clean, distraction-free writing experience
   ============================================ */

/* CSS Variables for easy theming */
:root {
  /* Light theme (default) */
  --bg-primary: #ffffff;
  --bg-secondary: #f8f9fa;
  --bg-tertiary: #e9ecef;
  --text-primary: #212529;
  --text-secondary: #6c757d;
  --text-placeholder: #adb5bd;
  --border-color: #dee2e6;
  --accent-color: #007bff;
  --accent-hover: #0056b3;
  --success-color: #28a745;
  --shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 4px 12px rgba(0, 0, 0, 0.15);
  
  /* Typography */
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-serif: Georgia, "Times New Roman", serif;
  --font-mono: "SF Mono", Menlo, Monaco, monospace;
  
  /* Spacing */
  --spacing-xs: 4px;
  --spacing-sm: 8px;
  --spacing-md: 16px;
  --spacing-lg: 24px;
  --spacing-xl: 32px;
  --spacing-xxl: 48px;
  
  /* Editor */
  --editor-max-width: 720px;
}

/* Dark theme */
@media (prefers-color-scheme: dark) {
  :root {
    --bg-primary: #1a1a1a;
    --bg-secondary: #242424;
    --bg-tertiary: #333333;
    --text-primary: #e9ecef;
    --text-secondary: #adb5bd;
    --text-placeholder: #6c757d;
    --border-color: #444444;
    --shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 4px 12px rgba(0, 0, 0, 0.4);
  }
}

/* Reset */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

/* Base */
html, body {
  height: 100%;
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  color: var(--text-primary);
  background-color: var(--bg-primary);
}

/* App Container */
.app {
  display: flex;
  flex-direction: column;
  height: 100vh;
  max-width: 100%;
  overflow: hidden;
}

/* ============================================
   Header
   ============================================ */
.header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-md) var(--spacing-lg);
  background-color: var(--bg-secondary);
  border-bottom: 1px solid var(--border-color);
  flex-shrink: 0;
}

.header-left,
.header-right {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

/* Status indicator */
.status {
  font-size: 14px;
  color: var(--text-secondary);
}

.status.saved {
  color: var(--success-color);
}

/* ============================================
   Buttons
   ============================================ */
button {
  font-family: var(--font-sans);
  font-size: 14px;
  cursor: pointer;
  border: none;
  border-radius: 6px;
  transition: all 0.15s ease;
}

.btn-primary {
  padding: var(--spacing-sm) var(--spacing-md);
  background-color: var(--accent-color);
  color: white;
  font-weight: 500;
}

.btn-primary:hover {
  background-color: var(--accent-hover);
}

.btn-secondary {
  padding: var(--spacing-sm) var(--spacing-md);
  background-color: var(--bg-tertiary);
  color: var(--text-primary);
}

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

.btn-icon {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  padding: var(--spacing-sm) var(--spacing-md);
  background-color: transparent;
  color: var(--text-secondary);
}

.btn-icon:hover {
  color: var(--text-primary);
  background-color: var(--bg-tertiary);
}

/* ============================================
   Editor Container
   ============================================ */
.editor-container {
  flex: 1;
  display: flex;
  flex-direction: column;
  max-width: var(--editor-max-width);
  width: 100%;
  margin: 0 auto;
  padding: var(--spacing-xl) var(--spacing-lg);
  overflow-y: auto;
}

/* Title Input */
.title-input {
  width: 100%;
  padding: var(--spacing-sm) 0;
  font-family: var(--font-sans);
  font-size: 32px;
  font-weight: 700;
  color: var(--text-primary);
  background: transparent;
  border: none;
  outline: none;
}

.title-input::placeholder {
  color: var(--text-placeholder);
}

/* Tags Input */
.tags-input {
  width: 100%;
  padding: var(--spacing-sm) 0;
  margin-bottom: var(--spacing-md);
  font-family: var(--font-sans);
  font-size: 14px;
  color: var(--text-secondary);
  background: transparent;
  border: none;
  outline: none;
}

.tags-input::placeholder {
  color: var(--text-placeholder);
}

/* ============================================
   Formatting Toolbar
   ============================================ */
.toolbar {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  padding: var(--spacing-sm) 0;
  margin-bottom: var(--spacing-md);
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
}

.toolbar button {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  color: var(--text-secondary);
  font-size: 14px;
}

.toolbar button:hover {
  background-color: var(--bg-tertiary);
  color: var(--text-primary);
}

.toolbar button.active {
  background-color: var(--bg-tertiary);
  color: var(--accent-color);
}

.toolbar-divider {
  width: 1px;
  height: 20px;
  background-color: var(--border-color);
  margin: 0 var(--spacing-xs);
}

/* ============================================
   WYSIWYG Editor
   ============================================ */
.editor {
  flex: 1;
  min-height: 300px;
  font-family: var(--font-serif);
  font-size: 18px;
  line-height: 1.8;
  color: var(--text-primary);
  outline: none;
}

.editor:empty::before {
  content: attr(data-placeholder);
  color: var(--text-placeholder);
  pointer-events: none;
}

/* Editor content styling */
.editor h2 {
  font-family: var(--font-sans);
  font-size: 24px;
  font-weight: 600;
  margin: var(--spacing-lg) 0 var(--spacing-md) 0;
}

.editor h3 {
  font-family: var(--font-sans);
  font-size: 20px;
  font-weight: 600;
  margin: var(--spacing-lg) 0 var(--spacing-md) 0;
}

.editor p {
  margin-bottom: var(--spacing-md);
}

.editor ul, .editor ol {
  margin-bottom: var(--spacing-md);
  padding-left: var(--spacing-lg);
}

.editor li {
  margin-bottom: var(--spacing-xs);
}

.editor blockquote {
  margin: var(--spacing-md) 0;
  padding: var(--spacing-md) var(--spacing-lg);
  border-left: 4px solid var(--accent-color);
  background-color: var(--bg-secondary);
  font-style: italic;
}

.editor a {
  color: var(--accent-color);
  text-decoration: underline;
}

.editor code {
  font-family: var(--font-mono);
  font-size: 14px;
  padding: 2px 6px;
  background-color: var(--bg-tertiary);
  border-radius: 4px;
}

.editor pre {
  font-family: var(--font-mono);
  font-size: 14px;
  padding: var(--spacing-md);
  background-color: var(--bg-tertiary);
  border-radius: 6px;
  overflow-x: auto;
  margin-bottom: var(--spacing-md);
}

/* ============================================
   Drafts Panel
   ============================================ */
.drafts-panel {
  position: fixed;
  top: 0;
  left: 0;
  width: 320px;
  height: 100vh;
  background-color: var(--bg-secondary);
  border-right: 1px solid var(--border-color);
  box-shadow: var(--shadow-lg);
  z-index: 100;
  overflow-y: auto;
  transition: transform 0.2s ease;
}

.drafts-panel.hidden {
  transform: translateX(-100%);
}

.drafts-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-md) var(--spacing-lg);
  border-bottom: 1px solid var(--border-color);
}

.drafts-header h2 {
  font-size: 18px;
  font-weight: 600;
}

.drafts-list {
  padding: var(--spacing-md);
}

.draft-item {
  padding: var(--spacing-md);
  margin-bottom: var(--spacing-sm);
  background-color: var(--bg-primary);
  border-radius: 8px;
  cursor: pointer;
  transition: background-color 0.15s ease;
}

.draft-item:hover {
  background-color: var(--bg-tertiary);
}

.draft-item h3 {
  font-size: 16px;
  font-weight: 500;
  margin-bottom: var(--spacing-xs);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.draft-item p {
  font-size: 14px;
  color: var(--text-secondary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.draft-item time {
  font-size: 12px;
  color: var(--text-placeholder);
}

.no-drafts {
  text-align: center;
  color: var(--text-secondary);
  padding: var(--spacing-xl);
}

/* ============================================
   Modal
   ============================================ */
.modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 200;
}

.modal.hidden {
  display: none;
}

.modal-content {
  background-color: var(--bg-primary);
  padding: var(--spacing-xl);
  border-radius: 12px;
  text-align: center;
  max-width: 400px;
  width: 90%;
  box-shadow: var(--shadow-lg);
}

.modal-content h2 {
  font-size: 24px;
  margin-bottom: var(--spacing-md);
}

.modal-content p {
  color: var(--text-secondary);
  margin-bottom: var(--spacing-lg);
}

.post-link {
  display: inline-block;
  margin-bottom: var(--spacing-lg);
  color: var(--accent-color);
  font-weight: 500;
}

/* ============================================
   Responsive
   ============================================ */
@media (max-width: 768px) {
  .header {
    padding: var(--spacing-sm) var(--spacing-md);
  }
  
  .editor-container {
    padding: var(--spacing-md);
  }
  
  .title-input {
    font-size: 24px;
  }
  
  .editor {
    font-size: 16px;
  }
}

/* ============================================
   Focus Mode (optional - toggle with JS)
   ============================================ */
.focus-mode .header,
.focus-mode .toolbar {
  opacity: 0;
  transition: opacity 0.3s ease;
}

.focus-mode:hover .header,
.focus-mode:hover .toolbar,
.focus-mode .header:focus-within,
.focus-mode .toolbar:focus-within {
  opacity: 1;
}

/* ============================================
   Print styles
   ============================================ */
@media print {
  .header, .toolbar, .drafts-panel, .modal {
    display: none;
  }
  
  .editor-container {
    max-width: 100%;
    padding: 0;
  }
}