/* ==========================================
   1. CORE THEMES & VARIABLES
   ========================================== */
/* Light Mode (Default) */
:root[data-theme="light"] {
  --bg-sidebar: #f7f6f3;
  --bg-workspace: #ffffff;
  --text-main: #37352f;
  --text-muted: #787774;
  --border: #e9e9e7;
  --hover-bg: #efedea;
  --active-bg: #e1dfdd;
  --btn-bg: transparent;
  --quote-border: #37352f;
  --code-bg: #f7f6f3;
}

/* Dark Mode */
:root[data-theme="dark"] {
  --bg-sidebar: #202020;
  --bg-workspace: #191919;
  --text-main: #d4d4d4;
  --text-muted: #9e9e9e;
  --border: #333333;
  --hover-bg: #2d2d2d;
  --active-bg: #3f3f3f;
  --btn-bg: transparent;
  --quote-border: #d4d4d4;
  --code-bg: #2d2d2d;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  background-color: var(--bg-workspace);
  color: var(--text-main);
  height: 100vh;
  overflow: hidden;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  transition: background-color 0.3s, color 0.3s;
}

.app-layout {
  display: flex;
  height: 100%;
}

/* ==========================================
   2. SIDEBAR
   ========================================== */
.sidebar {
  width: 260px;
  background-color: var(--bg-sidebar);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  transition: background-color 0.3s, border-color 0.3s;
}

.sidebar-header {
  padding: 16px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.sidebar-header h2 {
  font-size: 0.9rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.new-entry-btn {
  margin: 0 16px 16px 16px;
  padding: 8px;
  background: var(--btn-bg);
  border: 1px solid var(--border);
  border-radius: 4px;
  color: var(--text-main);
  font-weight: 500;
  text-align: left;
  cursor: pointer;
  transition: background 0.2s;
}

.new-entry-btn:hover { background-color: var(--hover-bg); }

.entries-list-container { flex: 1; overflow-y: auto; }
.entries-list { list-style: none; padding-bottom: 20px;}

.entry-item {
  padding: 8px 16px;
  font-size: 0.95rem;
  cursor: pointer;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  transition: background 0.2s;
}

.entry-item:hover { background-color: var(--hover-bg); }
.entry-item.active { background-color: var(--active-bg); font-weight: 600; }

/* ==========================================
   3. TOOLBAR
   ========================================== */
.main-workspace {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
  padding: 12px 24px;
  background-color: var(--bg-workspace);
  border-bottom: 1px solid var(--border);
  z-index: 10;
  transition: background-color 0.3s, border-color 0.3s;
}

.tool-group {
  display: flex;
  align-items: center;
  gap: 4px;
  padding-right: 12px;
  border-right: 1px solid var(--border);
}
.tool-group:last-child { border-right: none; margin-left: auto; }

.tool-btn, .custom-btn, .icon-btn {
  background: var(--btn-bg);
  border: none;
  padding: 6px 10px;
  border-radius: 4px;
  cursor: pointer;
  color: var(--text-main);
  font-size: 1rem;
  transition: background 0.2s;
}

.tool-btn:hover, .custom-btn:hover, .icon-btn:hover {
  background-color: var(--hover-bg);
}

.tool-select {
  padding: 6px;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: var(--bg-workspace);
  color: var(--text-main);
  cursor: pointer;
}

/* Pickers & Dropdowns */
.color-picker-label {
  display: flex; align-items: center; gap: 6px; padding: 4px 8px; border-radius: 4px; cursor: pointer;
}
.color-picker-label:hover { background-color: var(--hover-bg); }
.color-picker-label input[type="color"] { width: 24px; height: 24px; border: none; border-radius: 4px; cursor: pointer; padding: 0; background: none;}

.dropdown { position: relative; display: inline-block; }
.dropdown-content {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  background-color: var(--bg-workspace);
  box-shadow: 0 4px 20px rgba(0,0,0,0.2);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 12px;
  z-index: 100;
  width: 260px;
}
.dropdown:hover .dropdown-content { display: flex; flex-wrap: wrap; gap: 8px; }

.emoji-item { cursor: pointer; font-size: 1.5rem; padding: 4px; border-radius: 4px; transition: transform 0.1s; }
.emoji-item:hover { background-color: var(--hover-bg); transform: scale(1.2); }

.image-btn input { display: none; }

.export-btn {
  background-color: var(--text-main);
  color: var(--bg-workspace);
  border: none;
  padding: 8px 16px;
  border-radius: 4px;
  font-weight: 600;
  cursor: pointer;
  transition: background-color 0.3s, color 0.3s;
}
.export-btn:hover { opacity: 0.8; }

/* ==========================================
   4. WRITING PAGE
   ========================================== */
.editor-scroll-area {
  flex: 1;
  overflow-y: auto;
  padding: 60px 0;
  display: flex;
  justify-content: center;
}

.paper {
  width: 100%;
  max-width: 900px;
  padding: 0 60px 80px 60px;
}

.entry-title-input {
  width: 100%;
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--text-main);
  background: transparent;
  border: none;
  outline: none;
  margin-bottom: 24px;
  font-family: inherit;
}
.entry-title-input::placeholder { color: var(--text-muted); opacity: 0.5; }

.editor-body {
  min-height: 50vh;
  outline: none;
  font-size: 1.1rem;
  line-height: 1.7;
}

/* ==========================================
   5. RICH BLOCKS & FORMATTING
   ========================================== */
.editor-body p { margin-bottom: 1em; }
.editor-body h1 { font-size: 1.875em; margin-top: 1.5em; margin-bottom: 0.5em; font-weight: 600; }
.editor-body h2 { font-size: 1.5em; margin-top: 1.4em; margin-bottom: 0.5em; font-weight: 600; }
.editor-body ul, .editor-body ol { margin-bottom: 1em; padding-left: 1.5em; }
.editor-body li { margin-bottom: 0.3em; }

/* Quotes */
.editor-body blockquote {
  border-left: 4px solid var(--quote-border);
  margin: 1.5em 0;
  font-style: italic;
  color: var(--text-muted);
  background: var(--bg-sidebar);
  padding: 12px 16px;
  border-radius: 0 4px 4px 0;
}

/* Code Blocks */
.editor-body pre {
  background-color: var(--code-bg);
  padding: 16px;
  border-radius: 6px;
  overflow-x: auto;
  margin: 1.5em 0;
  font-family: 'Courier New', Courier, monospace;
  font-size: 0.95em;
  border: 1px solid var(--border);
}

/* Toggle Lists */
.editor-body details {
  margin-bottom: 1em;
  background-color: var(--bg-sidebar);
  padding: 8px 12px;
  border-radius: 6px;
  border: 1px solid var(--border);
}
.editor-body summary { font-weight: 600; cursor: pointer; outline: none; list-style: none; }
.editor-body summary::-webkit-details-marker { display: none; }
.editor-body summary::before {
  content: "▶ "; font-size: 0.8em; color: var(--text-muted); display: inline-block; transition: transform 0.2s;
}
.editor-body details[open] summary::before { transform: rotate(90deg); }
.editor-body details > div { padding-top: 12px; padding-left: 16px; }

/* ==========================================
   6. ADVANCED MEDIA (Images & Galleries)
   ========================================== */
/* Wrappers to allow images to sit side-by-side */
.gallery-row {
  display: flex;
  gap: 16px;
  margin: 1.5em 0;
  flex-wrap: nowrap;
  align-items: flex-start;
}

/* The wrapper that holds the image and the resize handle */
.resizable-img-wrapper {
  position: relative;
  display: inline-block;
  max-width: 100%;
  margin: 1.5em 0;
}

.gallery-row .resizable-img-wrapper {
  margin: 0; /* Resets margin when images are inside a gallery */
  flex: 1;
}

.resizable-img-wrapper img {
  width: 100%;
  height: auto;
  border-radius: 6px;
  display: block;
  pointer-events: none; /* Stops the browser's default drag-and-drop bug */
}

/* The invisible drag handle in the bottom right corner */
.resize-handle {
  position: absolute;
  bottom: 0;
  right: 0;
  width: 20px;
  height: 20px;
  background-color: var(--text-main);
  cursor: se-resize;
  border-radius: 50% 0 6px 0;
  opacity: 0;
  transition: opacity 0.2s;
}

.resizable-img-wrapper:hover .resize-handle {
  opacity: 1; /* Shows up only when you hover over the image */
}