:root {
	--bg-color: #f4f7f9;
	--surface-color: #ffffff;
	--primary-color: #367cff;
	--primary-hover: #2a63cc;
	--text-color: #333;
	--text-secondary: #667;
	--border-color: #e2e8f0;
	--danger-color: #e53e3e;
	--accent-color: #38b2ac;
	--accent-hover: #2c918b;
	--border-radius-base: 6px;
	--font-family: -apple-system, 'BlinkMacSystemFont', 'Segoe UI', 'Roboto', 'Helvetica Neue', 'Arial', sans-serif;
  }
  button, .btn, .auth-form input, textarea, #note-form, .note, .sidebar-content {
	border-radius: var(--border-radius-base);
  }
  .file-tag-item, .tag-count {
	border-radius: calc(var(--border-radius-base) / 2);
  }
  aside#left-sidebar::-webkit-scrollbar {
	width: 0;
	height: 0;
	background: transparent;
  }
  #heatmap-scroll-container::-webkit-scrollbar {
	width: 0;
	height: 0;
	background: transparent;
  }
  aside#left-sidebar {
	scrollbar-width: none;
  }
	#heatmap-scroll-container {
	scrollbar-width: none;
  }
  html[data-theme='dark'] {
	--bg-color: #0a1222;
	--surface-color: #151f31;
	--text-color: #e2e8f0;
	--text-secondary: #a0aec0;
	--border-color: #4a5568;
	--danger-color: #f56565;
  }
  html {
	scrollbar-width: thin;
	scrollbar-color: var(--border-color) var(--surface-color);
  }
  ::-webkit-scrollbar {
	width: 8px;
	height: 8px;
	background-color: var(--surface-color);
  }
  ::-webkit-scrollbar-track {
	background-color: transparent;
	border-radius: 10px;
  }
  ::-webkit-scrollbar-thumb {
	background-color: var(--border-color);
	border-radius: 10px;
	border: 2px solid var(--surface-color);
  }
  ::-webkit-scrollbar-thumb:hover {
	background-color: var(--primary-color);
	border-color: var(--surface-color);
  }
  ::-webkit-scrollbar-thumb:active {
	background-color: var(--primary-hover);
  }
  body[data-theme='dark'] .auth-form input,
  body[data-theme='dark'] textarea {
	background-color: var(--surface-input-bg, #2d3748);
	color: var(--text-color);
	border-color: var(--border-color);
  }
  body[data-theme='dark'] .auth-form input,
  body[data-theme='dark'] textarea {
	background-color: var(--surface-input-bg, #2d3748);
	color: var(--text-color);
	border-color: var(--border-color);
  }
  body[data-theme='dark'] .auth-form input:focus,
  body[data-theme='dark'] textarea:focus {
	box-shadow: 0 0 0 3px rgba(66, 153, 225, 0.25);
  }
  body[data-theme='dark'] .file-tag-item,
  body[data-theme='dark'] .edit-file-tag,
  body[data-theme='dark'] .attachment-link {
	background-color: #4a5568;
	color: #e2e8f0;
	border-color: #718096;
  }
  body[data-theme='dark'] .attachment-link:hover {
	background-color: #2d3748;
  }
  body[data-theme='dark'] #share-link-modal-box input[type="text"] {
	background-color: var(--surface-input-bg, #2d3748);
	color: var(--text-color);
	border-color: var(--border-color);
  }
  body:not(.auth-visible) #app-container {
	display: block;
  }
  body.auth-visible #app-container {
	display: none !important;
  }
  #initial-loader {
	position: fixed;
	top: 0;
	left: 0;
	width: 100%;
	height: 100%;
	background-color: var(--bg-color);
	display: flex;
	align-items: center;
	justify-content: center;
	z-index: 9999;
	opacity: 1;
	transition: opacity 0.5s ease;
  }
  #initial-loader .spinner {
	width: 40px;
	height: 40px;
	border: 4px solid var(--border-color);
	border-top-color: var(--primary-color);
	border-radius: 50%;
	animation: spin 1s linear infinite;
  }
  #auth-container, #app-container {
	display: none;
  }
  #app-layout-container {
	display: grid;
	grid-template-columns: 300px 1fr 100px;
	gap: 1.5rem;
	max-width: 1920px;
	margin: 0 auto;
	padding: 2rem 2rem 1rem;
  }
  #right-sidebar {
	position: fixed;
	right: 2rem;
	top: 2rem;
	align-self: start;
	height: calc(100vh - 4rem);
	overflow-y: auto;
	display: flex;
	flex-direction: column;
	padding-top: 0.5rem;
  }
  #main-content-area {
	min-width: 0;
  }

  #main-content-area .container {
	width: 85%;
	max-width: 1200px;
	margin: 0 auto;
	padding: 0;
  }

  #left-sidebar {
	position: sticky;
	top: 2rem;
	align-self: start;
	max-height: calc(100vh - 4rem);
	overflow-y: auto;
	scrollbar-gutter: stable;
  }

  #clear-filter-btn, #clear-tags-filter-btn {
	opacity: 0;
	visibility: hidden;
	transform: scale(0.8);
	transition: opacity 0.2s ease, visibility 0.2s ease, transform 0.2s ease;
  }

  #clear-filter-btn.visible, #clear-tags-filter-btn.visible {
	opacity: 1;
	visibility: visible;
	transform: scale(1);
  }

  #timeline-container ul {
	list-style: none;
	padding-left: 0.5rem;
	margin: 0;
  }

  #timeline-container li {
	margin: 0.25rem 0;
  }

  .timeline-item {
	display: flex;
	justify-content: space-between;
	align-items: center;
	padding: 6px 8px;
	cursor: pointer;
	border-radius: 4px;
	transition: background-color 0.2s ease;
  }

  .timeline-item:hover {
	background-color: var(--border-color);
  }

  .timeline-item.active {
	background-color: var(--primary-color);
	color: white;
  }

  .timeline-item.active .timeline-count {
	color: white;
  }

  .timeline-label {
	display: flex;
	align-items: center;
  }

  .timeline-toggle {
	width: 16px;
	height: 16px;
	margin-right: 8px;
	transition: transform 0.2s ease;
	opacity: 0.5;
  }

  .timeline-toggle.expanded {
	transform: rotate(90deg);
  }

  .timeline-count {
	font-size: 0.8rem;
	color: var(--text-secondary);
	background-color: var(--bg-color);
	padding: 1px 6px;
	border-radius: .5rem;
  }

  body[data-theme='dark'] .timeline-count {
	background-color: #4a5568;
  }

  .timeline-item.active .timeline-count {
	background-color: rgba(255, 255, 255, 0.2);
  }

  .timeline-actions {
	display: flex;
	align-items: center;
	gap: 8px;
  }

  .timeline-filter-btn {
	background: none;
	border: none;
	padding: 4px;
	margin: 0;
	line-height: 1;
	border-radius: 50%;
	cursor: pointer;
	color: var(--text-secondary);
	display: none;
	transition: background-color 0.2s, color 0.2s;
  }

  .timeline-item:hover .timeline-filter-btn {
	display: block;
  }

  .timeline-filter-btn:hover {
	background-color: var(--bg-color);
	color: var(--text-color);
  }

  body[data-theme='dark'] .timeline-filter-btn:hover {
	background-color: #4a5568;
  }

  .timeline-item.active .timeline-filter-btn {
	display: block;
	color: white;
  }

  .timeline-item.active .timeline-filter-btn:hover {
	background-color: rgba(255, 255, 255, 0.2);
  }

  .timeline-children {
	display: none;
	padding-left: 1rem;
	border-left: 1px solid var(--border-color);
	margin-left: 8px;
  }

  #left-sidebar, #right-sidebar {
	display: none;
  }

  /* 当父容器有 .app-visible 类时，才显示侧边栏 */
  #app-layout-container.app-visible #left-sidebar,
  #app-layout-container.app-visible #right-sidebar {
	display: block;
  }
  @media (max-width: 600px) {
	#app-layout-container {
		padding: 2rem .5rem 0.5rem;
	}
	#main-content-area .container {
		width: 100%;
	}
	.container {
		min-width: 300px !important;
	}
  }
  /* 响应式设计：在小屏幕上隐藏侧边栏 */
  @media (max-width: 1250px) {
	#app-layout-container {
	  grid-template-columns: 1fr !important;
	}

	#left-sidebar {
	  display: none !important; /* 隐藏侧边栏 */
	}

	/* 在宽屏模式下，如果右侧栏存在，则中间栏依然受限 */
	#app-layout-container.full-width-mode #main-content-area .container {
	  max-width: 85%;
	max-width: 1400px !important;
  }
  }

  @media (max-width: 1150px) {
	#right-sidebar {
	  display: none !important; /* 隐藏侧边栏 */
	}
	#wide-mode-toggle-btn {
		display: none;
	}
  }
	@media (max-width: 700px) {
	#waterfall-toggle-btn {
		display: none;
	}
  }

  @media (max-width: 1300px) and (min-width: 1250px) {
	#app-layout-container {
	  grid-template-columns: 300px 800px;
		justify-content: center;
	}
  }

  @media (max-width: 1300px) {
	.sidebar-tab-btn {
	  width: 60px !important;
	  height: 60px !important;
	}

	.tag-name {
	  max-width: 120px;
	}
  }

  .header-actions {
	display: flex;
	align-items: center;
	gap: 0.5rem;
  }

  #theme-toggle-btn {
	width: 36px;
	height: 36px;
	border-radius: 50%;
	cursor: pointer;
	display: flex;
	align-items: center;
	justify-content: center;
	transition: all 0.2s ease;
  }

  body {
	font-family: var(--font-family);
	background-color: var(--bg-color);
	color: var(--text-color);
	margin: 0;
	padding: 0rem 0rem;
	line-height: 1.6;
  }

  .container {
	min-width: 390px;
	margin: 0 auto;
	padding: 0 1rem;
  }

  body.auth-visible {
	display: flex;
	align-items: center;
	justify-content: center;
	min-height: 100vh;
	padding: 1rem;
	box-sizing: border-box;
  }

  body.auth-visible #app-layout-container {
	display: none;
  }

  #login-form h3 {
	margin-bottom: 0;
  }

  #login-btn {
	margin-top: 1rem;
	width: 120px;
  }

  #auth-container {
	text-align: center;
	background: var(--surface-color);
	max-width: 400px;
	width: 100%;
	padding: 2rem;
	border-radius: .5rem;
	box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
  }

  #auth-container h1 {
	margin-top: 0;
	color: var(--primary-color);
  }

  .auth-form input {
	display: block;
	width: 100%;
	max-width: 400px;
	padding: 12px;
	margin-bottom: 1rem;
	border: 1px solid var(--border-color);
	border-radius: 0px;
	font-size: 1rem;
	box-sizing: border-box;
  }

  #login-error {
	color: var(--danger-color);
	margin-bottom: .5rem;
	min-height: 1.2em;
  }

  #app-container {
	display: none;
  }

  .app-header {
	display: flex;
	justify-content: space-between;
	align-items: center;
	margin-bottom: 1rem;
  }

  .app-header h1 {
	margin: 0;
	font-size: 1.8rem;
	color: #445;
  }

  #note-form {
	background: var(--surface-color);
	padding: 1rem;
	border-radius: .5rem;
	margin-bottom: 1rem;
	border: 1px solid var(--border-color);
	box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
	transition: all 0.3s ease;
  }

  #note-form.dragover {
	border-color: var(--primary-color);
	box-shadow: 0 0 15px rgba(54, 124, 255, 0.2);
	transform: translateY(-2px);
  }

  textarea {
	width: 100%;
	padding: 12px;
	border-radius: 0px;
	border: 1px solid var(--border-color);
	font-size: 1rem;
	margin-bottom: 0.5rem;
	box-sizing: border-box;
	resize: vertical;
	transition: box-shadow 0.2s, border-color 0.2s;
	font-family: -apple-system, 'BlinkMacSystemFont', 'Segoe UI', 'Roboto', 'Helvetica Neue', 'Arial', sans-serif;
  }

  .auth-form input:focus, textarea:focus {
	border-color: var(--primary-color);
	outline: none;
	box-shadow: 0 0 0 3px rgba(54, 124, 255, 0.15);
  }

  .form-actions {
	display: flex;
	justify-content: flex-end;
	align-items: center;
	gap: 1rem;
	flex-wrap: wrap;
  }

  .file-list-display .file-tag {
	display: inline-flex;
	align-items: center;
	background-color: #edf2f7;
	color: #4a5568;
	padding: 4px 10px;
	font-size: 0.85rem;
	margin-right: 6px;
	margin-bottom: 6px;
  }

  button, .btn {
	background-color: var(--primary-color);
	color: white;
	padding: 6px 12px;
	border: none;
	/*border-radius: 0px;*/
	cursor: pointer;
	font-size: 1rem;
	transition: all 0.2s ease;
	font-weight: 500;
  }

  button:hover, .btn:hover {
	background-color: var(--primary-hover);
	transform: translateY(-1px);
  }

  button:disabled {
	background-color: #a0aec0;
	cursor: not-allowed;
	transform: none;
  }

  .btn-secondary {
	background-color: #a0aec0;
  }

  .btn-secondary:hover {
	background-color: #718096;
  }

  .btn-danger {
	background-color: var(--danger-color);
  }

  .btn-danger:hover {
	background-color: #c53030;
  }

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

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

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

  .icon-btn {
	background: none;
	border: none;
	padding: 0;
	cursor: pointer;
	display: inline-flex;
	align-items: center;
	justify-content: center;
	width: 32px;
	height: 32px;
	border-radius: 50%;
	color: var(--text-secondary);
	transition: all 0.2s ease;
  }

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

  .icon-btn svg {
	width: 20px;
	height: 20px;
  }

  .icon-btn.btn-danger:hover {
	color: var(--danger-color);
	background-color: rgba(229, 62, 62, 0.1);
  }

  .icon-btn.btn-accent:hover {
	color: var(--accent-color);
	background-color: rgba(56, 178, 172, 0.1);
  }

  body[data-theme='dark'] .icon-btn:hover {
	background-color: #4a5568;
  }

  .text-link-button {
	background: none;
	border: none;
	color: var(--primary-color);
	padding: 0;
	font-size: 1rem;
	cursor: pointer;
	font-weight: 500;
	text-decoration: none;
	display: inline-block;
	vertical-align: middle;
  }

  .text-link-button:hover {
	text-decoration: underline;
  }

  .edit-actions .text-link-button {
	font-size: 0.8rem;
  }

  .file-list-display {
	display: flex;
	flex-wrap: wrap;
	gap: 0.5rem;
  }

  .file-list-display:empty {
	display: none;
  }

  .file-tag-item {
	position: relative;
	display: inline-flex;
	align-items: center;
	background-color: #edf2f7;
	color: #4a5568;
	padding: 4px 24px 4px 10px;
	font-size: 0.85rem;
	border-radius: 0px;
  }

  .remove-file-main-btn {
	position: absolute;
	top: 0;
	right: 0;
	bottom: 0;
	width: 24px;
	background: none;
	border: none;
	color: var(--danger-color);
	font-size: 1.2rem;
	cursor: pointer;
	line-height: 1;
	padding: 0;
	opacity: 0.6;
	transition: opacity 0.2s;
  }

  .remove-file-main-btn:hover {
	opacity: 1;
  }

  .note {
	background: var(--surface-color);
	border: 1px solid var(--border-color);
	border-radius: .5rem;
	padding: .5rem 1rem;
	margin-bottom: .5rem;
	box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
	transition: transform 0.2s ease, box-shadow 0.2s ease;
	box-sizing: border-box;
  }

  .note:hover {
	box-shadow: 0 6px 16px rgba(0, 0, 0, 0.08);
  }

  .note-header {
	display: flex;
	justify-content: space-between;
	align-items: center;
	margin-bottom: .5rem;
	padding-bottom: 0rem;
  }

  .note-meta {
	font-size: 0.8rem;
	color: var(--text-secondary);
  }

  .note-actions, .edit-actions {
	display: flex;
  }

  .note-actions button, .edit-actions button {
	font-size: 0.8rem;
  }

  .note-content {
	white-space: pre-wrap;
	word-wrap: break-word;
	font-size: 1rem;
	margin-bottom: 1rem;
  }

  .note-content a {
	color: var(--primary-color);
	text-decoration: none;
	border-bottom: 1px solid transparent;
	transition: border-color 0.2s;
	word-break: break-all;
  }

  .note-content a:hover {
	border-bottom-color: var(--primary-color);
  }

  .attachments-grid {
	display: grid;
	grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
	gap: 1rem;
	margin-top: 0.5rem;
	padding: 0.75rem;
  }

  .attachment-img a {
	display: block;
	overflow: hidden;
	border-radius: 0px;
  }

  .attachment-img img {
	max-width: 100%;
	display: block;
	transition: transform 0.3s ease;
  }

  .attachment-img a:hover img {
	transform: scale(1.05);
  }

  .attachment-link {
	display: flex;
	flex-direction: column;
	justify-content: center;
	background-color: #f7fafc;
	padding: 0.25rem 0.75rem;
	border-radius: 0px;
	color: var(--text-color);
	text-decoration: none;
	font-size: 1rem;
	transition: background-color 0.2s;
	border: 1px solid var(--border-color);
  }

  .attachment-link:hover {
	background-color: #edf2f7;
  }

  .attachment-link .file-name {
	word-break: break-all;
	font-weight: 500;
  }

  .attachment-link .file-size {
	color: var(--text-secondary);
	font-size: 0.75rem;
  }

  .edit-area {
	display: none;
  }

  .edit-textarea {
	min-height: 100px;
  }

  .edit-textarea.dragover {
	border-color: var(--primary-color);
	box-shadow: inset 0 0 10px rgba(54, 124, 255, 0.2);
  }

  .edit-files-container {
	display: none;
	flex-wrap: wrap;
	gap: 0.5rem;
	padding-bottom: 0.75rem;
  }

  .edit-file-tag {
	position: relative;
	display: inline-flex;
	align-items: center;
	background-color: #edf2f7;
	color: #4a5568;
	padding: 4px 20px 4px 10px;
	font-size: 0.85rem;
  }

  .edit-file-tag.deleted {
	text-decoration: line-through;
	opacity: 0.6;
  }

  .remove-file-btn {
	position: absolute;
	top: 0;
	right: 0;
	bottom: 0;
	width: 20px;
	background: none;
	border: none;
	color: var(--danger-color);
	font-size: 1.2rem;
	cursor: pointer;
	line-height: 1;
	padding: 0;
	opacity: 0.7;
  }

  .remove-file-btn:hover {
	opacity: 1;
  }

  .note.editing .view-mode, .note:not(.editing) .edit-mode {
	display: none;
  }

  .note.editing .note-content, .note.editing .attachments-grid {
	display: none;
  }

  .note.editing .edit-area {
	display: block;
  }

  .loading-indicator {
	text-align: center;
	padding: 3rem;
	color: var(--text-secondary);
  }

  #refresh-loader {
	position: absolute;
	top: 0.5rem;
	left: 50%;
	transform: translateX(-50%);
	z-index: 10;

	display: none;
	align-items: center;
	gap: 0.5rem;

	background-color: var(--primary-color);
	color: white;
	padding: 6px 14px;
	border-radius: 20px;
	font-size: 0.8rem;
	font-weight: 500;
	box-shadow: 0 4px 15px rgba(0, 0, 0, 0.15);
	white-space: nowrap;
  }

  #refresh-loader .spinner {
	width: 14px;
	height: 14px;
	border: 2px solid rgba(255, 255, 255, 0.3);
	border-top-color: #ffffff; /* 在主色背景上使用纯白 */
	border-radius: 50%;
	animation: spin 1s linear infinite;
  }

  @keyframes spin {
	to {
	  transform: rotate(360deg);
	}
  }

  body[data-theme='dark'] #refresh-loader {
	box-shadow: none;
  }

  #notes-section {
	position: relative;
  }

  .icon-btn.pinned {
	opacity: 1;
	visibility: visible;
	color: var(--primary-color);
  }
  .icon-btn.pinned svg {
	fill: currentColor;
  }

  .custom-modal-overlay {
	position: fixed;
	top: 0;
	left: 0;
	width: 100%;
	height: 100%;
	background: rgba(0, 0, 0, 0.5);
	z-index: 1000;
	display: flex;
	align-items: center;
	justify-content: center;
	opacity: 0;
	visibility: hidden;
	transition: opacity 0.3s ease, visibility 0.3s ease;
  }

  .alert-modal {
	z-index: 1010;
  }

  body[data-theme='dark'] .custom-modal-overlay {
	background: rgba(10, 10, 20, 0.7);
  }

  .custom-modal-overlay.visible {
	opacity: 1;
	visibility: visible;
  }

  .custom-modal-box {
	display: none;
	background: var(--surface-color);
	padding: 1.5rem;
	box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
	width: 90%;
	max-width: 400px;
	text-align: center;
	transform: scale(0.9);
	transition: transform 0.3s cubic-bezier(0.18, 0.89, 0.32, 1.28);
  }

  .custom-modal-overlay.visible .custom-modal-box.active {
	display: block; /* Show the active box */
	transform: scale(1) translate3d(0, 0, 0);
  }

  #custom-alert-message {
	margin: 0 0 1.5rem;
  }

  .custom-modal-actions {
	display: flex;
	justify-content: flex-end;
	gap: 1rem;
	margin-top: 1.5rem;
  }

  #custom-confirm-message, #custom-alert-message {
	color: var(--text-color);
	font-size: 1rem;
	line-height: 1.5;
	word-wrap: break-word;
  }

  .note-content h1, .edit-preview h1,
  .note-content h2, .edit-preview h2,
  .note-content h3, .edit-preview h3 {
	margin-top: 1em;
	margin-bottom: 0.5em;
	line-height: 1.3;
	border-bottom: none;
  }
  .note-content h1, .edit-preview h1 { font-size: 1.5em; }
  .note-content h2, .edit-preview h2 { font-size: 1.25em; }
  .note-content h3, .edit-preview h3 { font-size: 1.1em; }
  .note-content p, .edit-preview p {
	margin: 0 0 1em;
  }

  .note-content ul, .edit-preview ul,
  .note-content ol, .edit-preview ol {
	padding-left: 1.5em;
	margin-bottom: 1em;
  }

  .note-content li, .edit-preview li {
	margin-bottom: 0.25em;
  }

  .note-content blockquote,
  .edit-preview blockquote {
	border-left: 3px solid var(--primary-color);
	padding-left: 1em;
	margin: 1em 0;
	color: var(--text-secondary);
  }

  .note-content code,
  .edit-preview code {
	background-color: var(--border-color);
	padding: 0.2em 0.4em;
	border-radius: 4px;
	font-size: 85%;
	font-family: 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, Courier, monospace;
  }

  .note-content pre,
  .edit-preview pre {
	padding: 1rem;
	border-radius: 8px;
	overflow-x: auto;
	margin: 1em 0;
	white-space: pre;
	line-height: 1.5;
	font-size: 85%;
  }

  .note-content pre,
  .edit-preview pre {
	background-color: var(--border-color);
	padding: 1rem;
	border-radius: 4px;
	overflow-x: auto;
	margin: 1em 0;
	white-space: pre;
  }

  .note-content pre code,
  .edit-preview pre code {
	background: none;
	padding: 0;
	font-size: inherit;
	white-space: inherit;
	color: inherit;
  }

  body[data-theme='dark'] .note-content pre,
  body[data-theme='dark'] .edit-preview pre {
	background-color: #282c34;
	border-color: #282c34;
  }

  .note-content, .edit-preview {
	white-space: normal;
  }

  .edit-preview {
	display: none;
	min-height: 150px;
	padding: 12px;
	border-radius: 0px;
	border: 1px solid var(--border-color);
	font-size: 1rem;
	word-wrap: break-word;
	background-color: var(--bg-color);
  }

  body[data-theme='dark'] .edit-preview {
	background-color: var(--surface-color);
	border-color: var(--border-color);
  }

  .note.editing[data-edit-mode="preview"] .edit-textarea,
  .note.editing[data-edit-mode="preview"] .edit-files-container,
  .note.editing[data-edit-mode="preview"] label[title="Add files"] {
	display: none;
  }

  .note.editing.split-mode[data-edit-mode="preview"] .edit-textarea {
	display: block;
  }

  .note.editing[data-edit-mode="raw"] .edit-files-container {
	display: flex;
  }

  .note.editing[data-edit-mode="preview"] .edit-preview {
	display: block;
  }

  .md-preview-toggle-btn.active {
	color: var(--primary-color);
	background-color: rgba(54, 124, 255, 0.1);
  }

  #main-edit-preview {
	display: none;
	margin-bottom: .5rem;
  }

  #note-form.preview-mode #note-input,
  #note-form.preview-mode #file-list-display,
  #note-form.preview-mode #select-files-btn {
	display: none;
  }

  #note-form.preview-mode #main-edit-preview {
	display: block;
  }

  #main-preview-toggle-btn.active {
	color: var(--primary-color);
	background-color: rgba(54, 124, 255, 0.1);
  }

  .image-preview-modal {
	display: none;
	flex-direction: column;
	align-items: center;
	justify-content: center;
	padding: 20px;
	box-sizing: border-box;
	position: fixed;
	z-index: 1001;
	padding-top: 60px;
	left: 0;
	top: 0;
	width: 100%;
	height: 100%;
	overflow: auto;
	background-color: rgba(0, 0, 0, 0.9);
	transition: opacity 0.3s ease;
  }

  .image-preview-content {
	display: block;
	max-width: calc(100% - 40px);
	max-height: calc(100% - 100px);
	animation-name: zoom;
	animation-duration: 0.4s;
	border-radius: 4px;
	object-fit: contain;
  }

  @keyframes zoom {
	from {
	  transform: scale(0)
	}
	to {transform: scale(1)}
	}
  .image-preview-close {
	position: absolute;
	top: 15px;
	right: 35px;
	color: #f1f1f1;
	font-size: 40px;
	font-weight: bold;
	transition: 0.3s;
	cursor: pointer;
  }

  .image-preview-close:hover,
  .image-preview-close:focus {
	color: #bbb;
	text-decoration: none;
  }

  .video-preview-close {
	position: absolute;
	top: 15px;
	right: 35px;
	color: #f1f1f1;
	font-size: 40px;
	font-weight: bold;
	transition: 0.3s;
	cursor: pointer;
  }

  .video-preview-close:hover,
  .video-preview-close:focus {
	color: #bbb;
	text-decoration: none;
  }
  #image-preview-caption {
	display: block;
	width: 100%;
	max-width: 80vw;
	text-align: center;
	color: #ccc;
	padding: 15px 0 0;
	font-size: 0.9rem;
	flex-shrink: 0;
  }
  .table-wrapper {
	width: 100%;
	overflow-x: auto;
	-webkit-overflow-scrolling: touch;
	margin: 1em 0;
  }

  .note-content table,
  .edit-preview table {
	margin: 0;
  }

  .note-content table,
  .edit-preview table {
	width: 100%;
	border-collapse: collapse;
	margin: 1em 0;
	overflow: hidden;
	border-radius: 8px;
	border: 1px solid var(--border-color);
	box-shadow: 0 1px 3px rgba(0, 0, 0, 0.03);
  }

  .note-content th,
  .edit-preview th,
  .note-content td,
  .edit-preview td {
	padding: 10px 15px;
	border: 1px solid var(--border-color);
	text-align: left;
  }

  .note-content thead th,
  .edit-preview thead th {
	background-color: var(--bg-color);
	font-weight: 600;
	color: var(--text-color);
  }

  body[data-theme='dark'] .note-content thead th,
  body[data-theme='dark'] .edit-preview thead th {
	background-color: var(--surface-color);
  }

  .note-content tbody tr:nth-of-type(even),
  .edit-preview tbody tr:nth-of-type(even) {
	background-color: rgba(0, 0, 0, 0.02);
  }

  body[data-theme='dark'] .note-content tbody tr:nth-of-type(even),
  body[data-theme='dark'] .edit-preview tbody tr:nth-of-type(even) {
	background-color: rgba(255, 255, 255, 0.03);
  }
  #fullscreen-editor-overlay .custom-modal-box {
	width: 90vw;
	max-width: 5000px;
	height: 95vh;
	padding: 0;
	display: flex;
	flex-direction: column;
	text-align: left;
	border: 2px solid var(--border-color);
	box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
  }

  body[data-theme='dark'] #fullscreen-editor-overlay .custom-modal-box {
	border-color: #4a5568;
  }

  #editor-toolbar {
	display: flex;
	justify-content: space-between;
	align-items: center;
	padding: 0.5rem 1rem;
	border-bottom: 1px solid var(--border-color);
	background-color: var(--bg-color);
	flex-shrink: 0;
  }

  .toolbar-left, .toolbar-right {
	display: flex;
	align-items: center;
	gap: 0.5rem;
  }

  .toolbar-btn {
	background-color: transparent;
	border: 1px solid var(--border-color);
	color: var(--text-color);
	padding: 4px 8px;
	font-size: 0.8rem;
	cursor: pointer;
	border-radius: 4px;
  }

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

  #fs-color-picker-wrapper {
	display: flex;
	align-items: center;
  }

  #view-mode-selector {
	padding: 4px;
	border-radius: 4px;
	border: 1px solid var(--border-color);
	background-color: var(--surface-color);
	color: var(--text-color);
  }

  #editor-content-area {
	flex-grow: 1;
	display: flex;
	overflow: hidden;
  }

  #fs-editor-textarea, #fs-preview-pane {
	height: 100%;
	padding: 1rem;
	box-sizing: border-box;
	overflow-y: auto;
	border: none;
	background: transparent;
	font-size: 1rem;
	line-height: 1.6;
	flex-basis: 50%;
	flex-grow: 0;
	flex-shrink: 0;
  }

  #fs-editor-textarea {
	resize: none;
	line-height: 1.6;
  }

  textarea {
	line-height: 1.6;
	resize: none;
  }

  #fs-editor-divider {
	flex-basis: 6px;
	flex-shrink: 0;
	flex-grow: 0;
	background-color: var(--border-color);
	cursor: col-resize;
	transition: background-color 0.2s ease;
  }

  #fs-editor-divider:hover {
	background-color: var(--primary-color);
  }

  #editor-content-area[data-view-mode="source"] #fs-preview-pane,
  #editor-content-area[data-view-mode="source"] #fs-editor-divider {
	display: none;
  }

  #editor-content-area[data-view-mode="source"] #fs-editor-textarea {
	flex-basis: 100%;
	display: block;
  }

  #editor-content-area[data-view-mode="preview"] #fs-editor-textarea,
  #editor-content-area[data-view-mode="preview"] #fs-editor-divider {
	display: none;
  }

  #editor-content-area[data-view-mode="preview"] #fs-preview-pane {
	flex-basis: 100%;
	display: block;
  }

  #editor-content-area[data-view-mode="split"] #fs-editor-textarea,
  #editor-content-area[data-view-mode="split"] #fs-preview-pane,
  #editor-content-area[data-view-mode="split"] #fs-editor-divider {
	display: block;
  }

  @media (max-width: 800px) {
	#enter-fullscreen-btn {
	  display: none;
	}
	.note .fullscreen-edit {
	  display: none;
	}
  }

  #app-layout-container {
	min-height: 100vh;
	box-sizing: border-box;
  }
  #back-to-top-btn {
	position: fixed;
	bottom: 25px;
	right: 25px;
	z-index: 999;
	background-color: var(--primary-color);
	color: white;
	border: none;
	border-radius: 50%;
	width: 48px;
	height: 48px;
	cursor: pointer;
	box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
	display: flex;
	align-items: center;
	justify-content: center;
	opacity: 0;
	visibility: hidden;
	transform: translateY(20px);
	transition: opacity 0.3s ease, visibility 0.3s ease, transform 0.3s ease;
  }

  #back-to-top-btn.visible {
	opacity: 1;
	visibility: visible;
	transform: translateY(0);
  }

  #back-to-top-btn:hover {
	background-color: var(--primary-hover);
	transform: translateY(-2px);
  }

  #back-to-top-btn svg {
	width: 24px;
	height: 24px;
  }

  .code-block-wrapper {
	position: relative;
	margin: 1em 0;
  }

  .code-block-wrapper pre {
	margin: 0;
  }
  .copy-code-btn {
	position: absolute;
	top: 0;
	right: 0;
	width: 30px;
	height: 30px;
	padding: 0;
	background-color: #616161;
	color: white;
	border: none;
	border-radius: 0 4px 0 4px;
	cursor: pointer;
	display: flex;
	align-items: center;
	justify-content: center;
	opacity: 0;
	transition: opacity 0.2s ease, background-color 0.2s ease;
  }

  .code-block-wrapper:hover .copy-code-btn {
	opacity: 1;
  }

  .copy-code-btn:hover {
		display: flex;
		background-color: var(--primary-color);
  }

  .copy-code-btn.copied {
	background-color: var(--accent-color);
  }

  #left-sidebar .sidebar-content {
	padding: 1rem 1.25rem;
	border-radius: 12px;
	transition: opacity 0.2s ease, visibility 0.2s ease, transform 0.2s ease, background-color 0.2s ease;
  }

  #left-sidebar .sidebar-content h4 {
	display: flex;
	justify-content: space-between;
	margin-top: 0rem;
	margin-bottom: 1rem;
	padding-right: 8px;
	min-height: 36px;
  }

  #clear-tags-filter-btn {
	opacity: 0;
	visibility: hidden;
	transform: scale(0.8);
	transition: opacity 0.2s ease, visibility 0.2s ease, transform 0.2s ease;
  }

  #clear-tags-filter-btn.visible {
	opacity: 1;
	visibility: visible;
	transform: scale(1);
  }

  #tags-container ul {
	list-style: none;
	padding-left: 0.5rem;
	margin: 0;
  }

  #tags-container li {
	margin: 0.25rem 0;
  }

  .tag-item {
	display: flex;
	justify-content: space-between;
	align-items: center;
	padding: 6px 12px;
	border-radius: 4px;
	transition: background-color 0.2s ease;
	cursor: pointer;
  }

  .tag-item:hover {
	background-color: var(--border-color);
  }

  .tag-item.active {
	background-color: var(--primary-color);
	color: white;
  }

  .tag-item.active .tag-count,
  .tag-item.active .tag-label {
	color: white;
  }

  .tag-label {
	word-break: break-all;
	padding-right: 1rem;
  }

  .tag-count {
	font-size: 0.8rem;
	color: var(--text-secondary);
	background-color: var(--bg-color);
	padding: 1px 6px;
	border-radius: 10px;
	white-space: nowrap;
  }

  body[data-theme='dark'] .tag-count {
	background-color: #4a5568;
  }

  .tag-item.active .tag-count {
	background-color: rgba(255, 255, 255, 0.2);
  }

  .tag-item-placeholder {
	font-size: 0.8rem;
	color: var(--text-secondary);
	padding: 6px 12px;
  }

  .inline-tag {
	color: var(--primary-color);
	text-decoration: none;
	background-color: rgba(54, 124, 255, 0.1);
	padding: 2px 6px;
	border-radius: 4px;
	font-weight: 500;
	transition: background-color 0.2s ease, color 0.2s ease;
  }

  body[data-theme='dark'] .inline-tag {
	background-color: rgba(66, 153, 225, 0.15);
  }

  .inline-tag:hover {
	color: white;
	background-color: var(--primary-hover);
	text-decoration: none;
  }

  #app-layout-container.no-right-sidebar {
	grid-template-columns: 300px 1fr;
  }

  #app-layout-container.full-width-mode {
	grid-template-columns: 1fr;
	gap: 0;
	padding: 2rem 1rem;
	position: relative;
  }
  #app-layout-container.full-width-mode #left-sidebar {
	display: none;
  }

  #app-layout-container.full-width-mode #main-content-area .container {
	max-width: 85% !important;
  }
  .sidebar-buttons-group {
	display: flex;
	flex-direction: column;
	gap: 0.5rem;
	align-items: center;
	width: 100%;
  }

  .sidebar-tab-btn {
	display: flex;
	flex-direction: column;
	align-items: center;
	justify-content: center;
	width: 70px;
	height: 70px;
	margin-bottom: 1rem;
	background-color: var(--surface-color);
	border: 1px solid var(--border-color);
	border-radius: 8px;
	color: var(--text-secondary);
	cursor: pointer;
	font-size: 0.75rem;
	font-weight: 500;
	transition: all 0.2s ease;
	text-align: center;
	gap: 0.25rem;
  }

  .sidebar-tab-btn:hover {
	background-color: var(--border-color);
	color: var(--text-color);
	transform: translateY(-2px);
  }

  .sidebar-tab-btn.active {
	background-color: var(--primary-color);
	color: white;
	border-color: var(--primary-color);
	transform: none;
  }

  .sidebar-tab-btn.active svg {
	fill: white;
  }

  .sidebar-tab-btn svg {
	width: 28px;
	height: 28px;
	fill: currentColor;
	transition: fill 0.2s ease;
  }

  .timeline-item[data-level="year"] .timeline-label {
	font-weight: 600;
  }

  .timeline-item.active .timeline-count,
  .tag-item.active .tag-count {
	color: white;
  }

  .timeline-item[data-level="month"] .timeline-label {
	font-weight: 500;
  }

  #heatmap-container-wrapper {
	padding: 1rem 1.75rem !important;
	}
  .form-actions {
	display: flex;
	justify-content: space-between;
	align-items: center;
	gap: 1rem;
	flex-wrap: wrap;
  }

  .toolbar-group-left, .toolbar-group-right {
	display: flex;
	align-items: center;
	gap: 0.5rem;
  }

  .toolbar-group-left {
	position: relative;
  }

  .tag-dropdown-container {
	display: none;
	position: absolute;
	top: 100%;
	left: 0;
	margin-top: 8px;
	width: 280px;
	background-color: var(--surface-color);
	border: 1px solid var(--border-color);
	border-radius: 8px;
	box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
	z-index: 100;
  }

  #tag-search-input {
	width: 100%;
	padding: 10px;
	box-sizing: border-box;
	border: none;
	border-bottom: 1px solid var(--border-color);
	background-color: transparent;
	color: var(--text-color);
	outline: none;
  }

  #tag-dropdown-list {
	list-style: none;
	margin: 0;
	padding: 0.5rem;
	max-height: 200px;
	overflow-y: auto;
  }

  #tag-dropdown-list li {
	padding: 8px 12px;
	cursor: pointer;
	border-radius: 4px;
	font-size: 0.9rem;
  }

  #tag-dropdown-list li:hover {
	background-color: var(--border-color);
  }

  #tag-dropdown-list li.no-results {
	color: var(--text-secondary);
	cursor: default;
	background-color: transparent;
  }

  .sidebar-search-container {
	position: relative;
	margin-bottom: 1rem;
  }

  #global-search-input {
	width: 100%;
	padding: 10px 12px 10px 38px;
	font-size: 0.9rem;
	border-radius: 8px;
	border: 1px solid var(--border-color);
	background-color: var(--surface-color);
	color: var(--text-color);
	box-sizing: border-box;
	outline: none;
	transition: border-color 0.2s, box-shadow 0.2s;
  }

  #global-search-input:focus {
	border-color: var(--primary-color);
	box-shadow: 0 0 0 3px rgba(54, 124, 255, 0.15);
  }

  .search-icon {
	position: absolute;
	top: 50%;
	left: 12px;
	transform: translateY(-50%);
	width: 20px;
	height: 20px;
	color: var(--text-secondary);
	pointer-events: none;
  }

  #clear-search-btn {
	position: absolute;
	top: 50%;
	right: 6px;
	transform: translateY(-50%);
	width: 28px;
	height: 28px;
  }

  #global-search-input::-webkit-search-cancel-button {
	-webkit-appearance: none;
	display: none;
  }

  .header-actions {
	position: relative;
  }

  .theme-popover {
	display: none;
	position: fixed;
	width: 180px;
	background-color: var(--surface-color);
	border: 1px solid var(--border-color);
	border-radius: 12px;
	box-shadow: 0 5px 15px rgba(0, 0, 0, 0.15);
	padding: 0.75rem;
	z-index: 102;
	opacity: 0;
	visibility: hidden;
	transform: translateY(-10px);
	transition: opacity 0.2s ease, visibility 0.2s ease, transform 0.2s ease;
  }

  .theme-popover.visible {
	display: block;
	opacity: 1;
	visibility: visible;
	transform: translateY(0);
  }

  .color-palette {
	display: grid;
	grid-template-columns: repeat(4, 1fr);
	gap: 0.75rem;
  }

  .color-swatch {
	width: 28px;
	height: 28px;
	border-radius: 50%;
	cursor: pointer;
	border: 2px solid var(--border-color);
	transition: transform 0.2s ease, border-color 0.2s ease;
	justify-self: center;
  }

  .color-swatch:hover {
	transform: scale(1.1);
  }

  .color-swatch.active {
	border-color: var(--text-color);
	box-shadow: 0 0 0 2px var(--surface-color), 0 0 0 4px var(--text-color);
  }
  .custom-color-separator {
	height: 1px;
	background-color: var(--border-color);
	margin: 1rem 0;
  }
  .custom-color-picker {
	display: flex;
	justify-content: space-between;
	align-items: center;
  }
  .color-picker-label {
	display: flex;
	align-items: center;
	gap: 0.5rem;
	cursor: pointer;
	font-size: 0.9rem;
  }
  .color-picker-preview {
	width: 24px;
	height: 24px;
	border-radius: 6px;
	border: 1px solid var(--border-color);
  }

  .hidden-color-input {
	position: absolute;
	opacity: 0;
	width: 0;
	height: 0;
	pointer-events: none;
  }

  .hex-input-wrapper {
	display: flex;
	align-items: center;
	border: 1px solid var(--border-color);
	border-radius: 6px;
	padding: 4px 8px;
	background-color: var(--bg-color);
  }

  body[data-theme='dark'] .hex-input-wrapper {
	background-color: var(--surface-color);
  }

  .hex-input-wrapper span {
	color: var(--text-secondary);
  }

  .hex-color-input {
	width: 60px;
	border: none;
	background: none;
	outline: none;
	font-family: monospace;
	color: var(--text-color);
	margin-left: 4px;
  }

  .tag-label {
	display: inline-flex;
	align-items: center;
	word-break: break-all;
	padding-right: 1rem;
  }

  .tag-hash {
	font-size: 1.5em;
	font-weight: 600;
	color: var(--primary-color);
	margin-right: 0.5rem;
	line-height: 1;
  }
  .tag-item.active .tag-hash {
	color: inherit;
	opacity: 0.8;
  }
  .tag-name {
	text-overflow: ellipsis;
	white-space: nowrap;
	overflow: hidden;
  }
  #stats-card {
	display: flex;
	justify-content: space-around;
	align-items: center;
	text-align: center;
	padding: 0.75rem 0.5rem;
  }

  .stat-item {
	display: flex;
	flex-direction: column;
  }

  .stat-value {
	font-size: 1.6em;
	font-weight: 600;
	color: var(--primary-color);
	line-height: 1.2;
  }

  .stat-label {
	font-size: 0.75em;
	color: var(--text-secondary);
	text-transform: uppercase;
  }

  .sidebar-content h4 {
	display: flex;
	justify-content: space-between;
	align-items: center;
  }

  .sidebar-header-actions {
	display: flex;
	align-items: center;
	gap: 0.25rem;
  }

  .sidebar-toggle-btn {
	background: none;
	border: none;
	padding: 0;
	margin: 0;
	cursor: pointer;
	display: flex;
	align-items: center;
	justify-content: center;
	width: 28px;
	height: 28px;
	border-radius: 50%;
	color: var(--primary-color);
	opacity: 0.7;
	transition: background-color 0.2s, color 0.2s, opacity 0.2s;
  }

  .sidebar-toggle-btn:hover {
	background-color: var(--border-color);
	color: var(--primary-hover);
	opacity: 1;
  }

  body[data-theme='dark'] .sidebar-toggle-btn:hover {
	background-color: #4a5568;
  }

  .sidebar-toggle-btn .toggle-icon {
	transition: transform 0.3s cubic-bezier(0.25, 0.1, 0.25, 1);
  }
  .sidebar-content.is-collapsed .sidebar-toggle-btn .toggle-icon {
	transform: rotate(180deg);
  }
  .sidebar-content.is-collapsed .sidebar-collapsible-content {
	display: none;
  }

  .note-content img {
	max-width: 100%;
  }

  #header-title {
	margin-top: 0;
  }

  .icon-btn.favorited {
	opacity: 1;
	visibility: visible;
	color: #ffc107;
  }

  .icon-btn.unarchive-mode {
	color: var(--primary-color);
  }

  .note-view-actions {
	display: flex;
	gap: 0.25rem;
	padding-left: 0.5rem;
  }

  .note.editing .note-view-actions{
	display: none;
  }

  #notes-section.waterfall-mode #notes-container {
	display: grid;
	grid-template-columns: repeat(auto-fill, minmax(var(--waterfall-card-width), 1fr));
	grid-auto-rows: 1px;
	gap: 0.5rem 1rem;
	align-items: start;
  }

  #notes-section.waterfall-mode .note {
	width: 100%;
	margin-bottom: 0;
  }

  #notes-section.waterfall-mode .note-content {
	word-break: break-all;
  }

  /*.waterfall-more-btn {*/
	/*display: none;*/
  /*}*/

  /*#notes-section.waterfall-mode .waterfall-more-btn {*/
	/*display: flex;*/
	/*margin-left: auto;*/
  /*}*/

  /*#notes-section.waterfall-mode .note-view-actions,*/
  /*#notes-section.waterfall-mode .note-actions {*/
	/*display: none;*/
  /*}*/

  #notes-section.waterfall-mode .attachment-img img {
	border-radius: 0;
  }

  #notes-section.waterfall-mode .attachments-grid {
	border-radius: 0;
  }

  .popover-menu {
	position: fixed;
	z-index: 100;
	display: flex;
	gap: 0.5rem;
	padding: 0.5rem;
	background-color: var(--surface-color);
	border: 1px solid var(--border-color);
	border-radius: 8px;
	box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
	opacity: 0;
	visibility: hidden;
	transform: translateY(-10px) scale(0.95);
	transition: opacity 0.2s ease, visibility 0.2s ease, transform 0.2s ease;
  }

  .popover-menu.visible {
	opacity: 1;
	visibility: visible;
	transform: translateY(0) scale(1);
  }

  .note-visibility-indicator {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    font-size: 0.75rem;
    color: var(--text-secondary);
    background-color: var(--bg-color);
    padding: 2px 6px;
    border-radius: 4px;
    margin-left: 0.5rem;
  }
  body[data-theme='dark'] .note-visibility-indicator {
      background-color: #4a5568;
  }
  .user-info-container {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-left: 1rem;
  }
  .user-info-container .username {
    font-weight: 600;
    font-size: 0.9rem;
  }
  .user-info-container .logout-btn-header {
    font-size: 0.8rem;
    padding: 2px 8px;
    background-color: var(--border-color);
    color: var(--text-secondary);
  }
  .user-info-container .logout-btn-header:hover {
    background-color: var(--danger-color);
    color: white;
  }

  .visibility-selector {
    position: relative;
  }
  .visibility-selector-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
  }
  .visibility-popover {
    position: absolute;
    top: calc(100% + 5px);
    left: 0;
    z-index: 110;
    background-color: var(--surface-color);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
    padding: 0.25rem;
    min-width: 150px;
  }
  .visibility-option {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.5rem 0.75rem;
    border-radius: 4px;
    cursor: pointer;
  }
  .visibility-option:hover { background-color: var(--hover-bg-color); }
  .visibility-option.active { font-weight: 600; color: var(--primary-color); }

  .text-btn {
    background: none;
    border: none;
    padding: 4px 8px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--text-secondary);
    transition: background-color 0.2s, color 0.2s;
  }
  .text-btn:hover {
    background-color: var(--border-color);
    color: var(--text-color);
  }

  .visibility-selector[data-visibility="private"] .visibility-selector-btn::before {
    content: "Private";
  }

  .visibility-selector[data-visibility="workspace"] .visibility-selector-btn::before {
    content: "Workspace";
    color: var(--primary-color);
  }

  #settings-modal-box {
	max-width: 500px;
	text-align: left;
	padding: 0;
  }

  .settings-header {
	cursor: grab;
	display: flex;
	justify-content: space-between;
	align-items: center;
	padding: 1rem 1.5rem;
	border-bottom: 1px solid var(--border-color);
  }

  .settings-header:active {
	cursor: grabbing;
  }

  .settings-header h3 {
	margin: 0;
  }

  #close-settings-btn {
	font-size: 1.5rem;
  }

  .settings-content {
	padding: 1rem 1.5rem 1.5rem;
	max-height: 70vh;
	overflow-y: auto;
  }

  .setting-group {
	margin-bottom: 2rem;
  }

  .setting-group:last-child {
	margin-bottom: 0;
  }

  .setting-group h4 {
	margin-top: 0;
	margin-bottom: 1rem;
	color: var(--text-secondary);
	font-size: 1rem;
	text-transform: uppercase;
  }

  .setting-item {
	display: flex;
	justify-content: space-between;
	align-items: center;
	margin-bottom: .5rem;
	padding-left: 1rem;
  }

  .setting-item label {
	font-weight: 500;
  }

  .setting-item input[type="text"] {
	width: 60%;
	padding: 6px 10px;
	border-radius: 4px;
	border: 1px solid var(--border-color);
	background-color: var(--bg-color);
	color: var(--text-color);
  }

  .setting-item input[type="range"] {
	width: 50%;
  }

  .toggle-switch {
	position: relative;
	display: inline-block;
	width: 50px;
	height: 28px;
	-webkit-appearance: none;
	appearance: none;
	background-color: var(--border-color);
	border-radius: 28px;
	cursor: pointer;
	transition: background-color 0.2s;
  }

  .toggle-switch::before {
	content: "";
	position: absolute;
	top: 3px;
	left: 4px;
	width: 22px;
	height: 22px;
	background-color: white;
	border-radius: 50%;
	transition: transform 0.2s;
  }

  .toggle-switch:checked {
	background-color: var(--primary-color);
  }

  .toggle-switch:checked::before {
	transform: translateX(21px);
  }

  .btn-sm {
	padding: 4px 8px;
	font-size: 0.8rem;
  }

  body.custom-background {
	position: relative;
	z-index: 0;
  }

  body.custom-background::before {
	content: '';
	position: fixed;
	top: 0;
	left: 0;
	width: 100%;
	height: 100%;
	background-image: var(--bg-image-url);
	background-size: cover;
	background-position: center;
	background-attachment: fixed;
	opacity: var(--bg-opacity, 1);
	z-index: -1;
  }

  #app-layout-container.glass-effect,
  .auth-form.glass-effect {
	background: rgba(255, 255, 255, 0.2);
	backdrop-filter: blur(var(--bg-blur, 0px));
	border: 1px solid rgba(255, 255, 255, 0.3);
	border-radius: 12px;
  }

  body[data-theme='dark'] #app-layout-container.glass-effect,
  body[data-theme='dark'] .auth-form.glass-effect {
	background: rgba(21, 31, 49, 0.4);
	border: 1px solid rgba(255, 255, 255, 0.1);
  }

  #app-layout-container.no-sidebars {
	grid-template-columns: 1fr !important;
  }

  #app-layout-container.no-sidebars #left-sidebar {
	display: none !important;
  }

  #app-layout-container.no-sidebars #main-content-area .container {
	max-width: 1000px;
  }

  /* --- 全屏编辑器视图切换按钮的激活状态 --- */
  .toolbar-right .icon-btn.active {
	color: var(--primary-color);
	background-color: rgba(54, 124, 255, 0.1);
  }

  body[data-theme='dark'] .toolbar-right .icon-btn.active {
	background-color: rgba(66, 153, 225, 0.15); /* 适配深色模式 */
  }

  .toolbar-selector {
	background-color: transparent;
	border: 1px solid var(--border-color);
	color: var(--text-color);
	padding: 4px 8px;
	font-size: 0.8rem;
	cursor: pointer;
	border-radius: 4px;
	-webkit-appearance: none;
	appearance: none;
	padding-right: 20px;
	background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3e%3cpath fill='none' stroke='var(--text-color)' stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M2 5l6 6 6-6'/%3e%3c/svg%3e");
	background-repeat: no-repeat;
	background-position: right 0.5rem center;
	background-size: 1em;
  }

  #fs-color-popover {
	top: calc(100% + 8px);
	left: 0;
	width: 180px;
  }

  .header-actions .icon-btn.active {
	color: var(--primary-color);
	background-color: rgba(54, 124, 255, 0.1);
  }

  body[data-theme='dark'] .header-actions .icon-btn.active {
	background-color: rgba(66, 153, 225, 0.15);
  }
  #heatmap-container-wrapper {
	border: none !important;
	min-height: 120px;
  }

  #heatmap-scroll-container {
	overflow-x: auto;
	-webkit-overflow-scrolling: touch;
  }

  #heatmap-grid {
	display: grid;
	grid-template-rows: repeat(7, 1fr);
	grid-auto-flow: column;
	gap: 3px;
	padding-bottom: 5px;
  }
  .heatmap-day {
	aspect-ratio: 1 / 1;
	min-width: 16px;
	background-color: var(--border-color);
	border-radius: 2px;
	cursor: pointer;
	transition: transform 0.1s ease-in-out;
  }

  .heatmap-day:hover {
	transform: scale(1.2);
	box-shadow: 0 0 5px rgba(0, 0, 0, 0.2);
  }
  .heatmap-day[data-level="1"] {
	background-color: rgba(var(--primary-color-rgb), 0.3);
  }
  .heatmap-day[data-level="2"] {
	background-color: rgba(var(--primary-color-rgb), 0.5);
  }
  .heatmap-day[data-level="3"] {
	background-color: rgba(var(--primary-color-rgb), 0.75);
  }
  .heatmap-day[data-level="4"] {
	background-color: rgba(var(--primary-color-rgb), 1);
  }

  body[data-theme='dark'] .heatmap-day {
	background-color: rgba(255, 255, 255, 0.08);
  }
  body[data-theme='dark'] .heatmap-day[data-level="1"] {
	background-color: rgba(var(--primary-color-rgb), 0.15);
  }
  body[data-theme='dark'] .heatmap-day[data-level="2"] {
	background-color: rgba(var(--primary-color-rgb), 0.4);
  }
  body[data-theme='dark'] .heatmap-day[data-level="3"] {
	background-color: rgba(var(--primary-color-rgb), 0.7);
  }
  body[data-theme='dark'] .heatmap-day[data-level="4"] {
	background-color: rgba(var(--primary-color-rgb), 1);
  }
  #heatmap-tooltip {
	position: absolute;
	display: none;
	padding: 5px 10px;
	background-color: var(--text-color);
	color: var(--surface-color);
	border-radius: 4px;
	font-size: 0.8rem;
	font-weight: 500;
	white-space: nowrap;
	z-index: 1001;
	pointer-events: none;
	transform: translate(-50%, -120%);
  }

  #note-form.split-mode #main-editor-container {
	display: flex;
	gap: 1rem;
	margin-bottom: 1rem;
  }
  #note-form.split-mode #note-input,
  #note-form.split-mode #main-edit-preview {
	flex: 1;
	min-width: 0;
	margin-bottom: 0;
  }
  #note-form.split-mode #main-edit-preview {
	display: block;
	min-height: 200px;
	border: 1px solid var(--border-color);
	padding: 12px;
	border-radius: 0;
	background-color: var(--bg-color);
  }

  .note.split-mode .edit-area {
	display: flex;
	gap: 1rem;
	margin-bottom: 1rem;
  }

  .note.split-mode .edit-area .edit-textarea,
  .note.split-mode .edit-area .edit-preview {
	flex: 1;
	min-width: 0;
	margin-bottom: 0;
  }

  .note.split-mode .edit-preview {
	display: block;
	min-height: 200px;
	border: 1px solid var(--border-color);
	padding: 12px;
	border-radius: 0;
	background-color: var(--bg-color);
  }

  #main-split-toggle-btn.active, .md-split-toggle-btn.active {
	color: var(--primary-color);
	background-color: rgba(54, 124, 255, 0.1);
  }

  body.loading #app-layout-container,
  body.loading #auth-container {
	visibility: hidden;
  }

  body.loading #initial-loader {
	display: flex !important;
	opacity: 1 !important;
  }

  /* --- 日历组件样式 --- */
  #calendar-wrapper {
	padding: 0.5rem;
  }

  .calendar-header {
	display: flex;
	justify-content: space-between;
	align-items: center;
  }

  #calendar-month-year {
	font-weight: 600;
	font-size: 0.9rem;
	color: var(--primary-color);
  }

  .calendar-nav-btn {
	background: none;
	border: none;
	cursor: pointer;
	padding: 0.4rem;
	border-radius: 50%;
	display: flex;
	align-items: center;
	justify-content: center;
	color: var(--text-secondary);
	transition: background-color 0.2s, color 0.2s;
  }

  .calendar-nav-btn:hover {
	background-color: var(--border-color);
	color: var(--text-color);
  }

  .calendar-nav-btn:disabled {
	opacity: 0.3;
	cursor: not-allowed;
	background-color: transparent !important;
  }

  body[data-theme='dark'] .calendar-nav-btn:hover {
	background-color: #4a5568;
  }

  .calendar-grid {
	display: grid;
	grid-template-columns: repeat(7, 1fr);
	gap: .25rem;
  }
	.calendar-date {
		font-size: 0.875rem;
	}
  .calendar-day-name,
  .calendar-date-wrapper {
	text-align: center;
	width: 1.5rem;
	font-size: 0.875rem;
	aspect-ratio: 1 / 1;
	position: relative;
  }

  .calendar-day-name {
	font-weight: 500;
	color: var(--text-secondary);
	display: flex;
	align-items: center;
	justify-content: center;
  }

  .calendar-date-wrapper {
	display: flex;
	flex-direction: column;
	align-items: center;
	justify-content: center;
  }

  .calendar-date {
	background-color: transparent;
	border: none;
	padding: 0;
	width: 100%;
	height: 100%;
	border-radius: 50%;
	cursor: pointer;
	transition: all 0.2s ease;
	color: var(--text-color);
	display: flex;
	align-items: center;
	justify-content: center;
	position: relative;
	z-index: 1;
  }

  .calendar-date.is-other-month {
	color: var(--text-secondary);
	opacity: 0.5;
	cursor: default;
	pointer-events: none;
  }

  .calendar-date:not(.is-other-month):hover {
	background-color: var(--primary-hover);
	color: white !important;
	transform: scale(1.1);
  }

  .calendar-date.is-selected {
	background-color: var(--primary-color) !important;
	color: white !important;
	box-shadow: 0 0 0 2px var(--surface-color), 0 0 0 4px var(--primary-color);
  }

  .calendar-date.is-selected:hover {
	transform: none;
  }
  .calendar-date[data-level="1"] {
	color: rgba(var(--primary-color-rgb), 0.6);
  }

  .calendar-date[data-level="2"] {
	color: rgba(var(--primary-color-rgb), 0.8);
  }

  .calendar-date[data-level="3"] {
	color: rgba(var(--primary-color-rgb), 1);
	font-weight: 600;
  }

  .calendar-date[data-level="4"] {
	color: rgba(var(--primary-color-rgb), 1);
	font-weight: 600;
  }

  .calendar-dots-container {
	position: absolute;
	bottom: 2px;
	left: 0;
	right: 0;
	display: flex;
	justify-content: center;
	align-items: center;
	gap: 2px;
	pointer-events: none;
  }

  .calendar-dot {
	width: 3px;
	height: 3px;
	border-radius: 50%;
	background-color: var(--primary-color);
	opacity: 0.4;
	transition: opacity 0.2s ease;
  }

  .calendar-dot:nth-child(odd) {
	opacity: 0.9;
  }
  #calendar-tooltip {
	position: absolute;
	display: none;
	padding: 4px 8px;
	background-color: var(--text-color);
	color: var(--surface-color);
	border-radius: 4px;
	font-size: 0.75rem;
	font-weight: 500;
	white-space: nowrap;
	z-index: 1001;
	pointer-events: none;
	transform: translate(-50%, -120%);
  }

  #app-layout-container.attachments-mode {
	grid-template-columns: 1fr;
  }
  #app-layout-container.attachments-mode #left-sidebar {
	display: none !important;
  }
  #app-layout-container.attachments-mode #main-content-area .container {
	max-width: 1200px;
	width: 90%;
  }
  #attachments-viewer {
	padding: 1rem 0;
  }
  .attachments-header {
	display: flex;
	flex-direction: column;
	align-items: center;
	gap: 1rem;
  }
  .attachments-header h3 {
	margin: 0;
	font-size: 1.5rem;
  }
  .attachments-tabs {
	display: flex;
	gap: 0.5rem;
	background-color: var(--bg-color);
	padding: 0.25rem;
	border-radius: 8px;
  }
  .tab-btn {
	padding: 0.5rem 1rem;
	font-size: 0.9rem;
	font-weight: 500;
	border: none;
	border-radius: 6px;
	background-color: transparent;
	color: var(--text-secondary);
	cursor: pointer;
	transition: all 0.2s ease;
  }
  .tab-btn:hover {
	background-color: var(--surface-color);
	color: var(--text-color);
  }
  .tab-btn.active {
	background-color: var(--primary-color);
	color: white;
	box-shadow: 0 2px 8px rgba(var(--primary-color-rgb), 0.3);
  }

  #attachments-content.loading-state {
	display: flex;
	justify-content: center;
	padding: 4rem 0;
  }
  .attachment-month-group {
	margin-bottom: 2.5rem;
  }
  .month-header {
	font-size: 1.2rem;
	font-weight: 600;
	margin-bottom: 1rem;
	margin-top: 1rem;
	padding-bottom: 0.5rem;
	border-bottom: 1px solid var(--border-color);
	color: var(--primary-color);
  }
  .attachments-grid {
	display: grid;
	grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
	gap: 1rem;
  }
  .attachment-item {
	text-decoration: none;
	position: relative;
	border-radius: 8px;
	overflow: hidden;
	background-color: var(--surface-color);
	border: 1px solid var(--border-color);
	box-shadow: 0 2px 8px rgba(0,0,0,0.05);
	transition: transform 0.2s ease, box-shadow 0.2s ease;
	display: flex;
	flex-direction: column;
  }
  .attachment-item:hover .share-file-btn {
	opacity: 1;
	visibility: visible;
	transform: scale(1);
  }
  .attachment-item:hover {
	transform: translateY(-4px);
	box-shadow: 0 6px 16px rgba(0,0,0,0.1);
  }

  .attachment-item-image .preview {
	width: 100%;
	aspect-ratio: 4 / 3;
	object-fit: cover;
	background-color: var(--bg-color);
  }
  .attachment-item-file {
	padding: 1rem;
	display: flex;
	flex-direction: column;
	gap: 0.5rem;
	align-items: center;
	text-align: center;
  }
  .file-icon {
	font-size: 2.5rem;
  }
  .file-info .name {
	font-weight: 500;
	color: var(--text-color);
	word-break: break-all;
  }
  .file-info .size {
	font-size: 0.8rem;
	color: var(--text-secondary);
  }
  .more-actions-container {
	position: relative;
  }

  .more-menu-popover {
	display: none;
	position: absolute;
	top: calc(100% + 8px);
	right: 0;
	z-index: 101;
	width: 150px;
	background-color: var(--surface-color);
	border: 1px solid var(--border-color);
	border-radius: 8px;
	box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
	padding: 0.3125rem;
	display: flex;
	flex-direction: column;
	gap: 0.25rem;
	opacity: 0;
	visibility: hidden;
	transform: translateY(-10px);
	transition: opacity 0.2s ease, visibility 0.2s ease, transform 0.2s ease;
  }

  .more-menu-popover.visible {
	display: flex;
	opacity: 1;
	visibility: visible;
	transform: translateY(0);
  }

  .more-menu-item {
	display: flex;
	align-items: center;
	gap: 0.75rem;
	width: 100%;
	background-color: transparent;
	border: none;
	text-align: left;
	font-size: 0.9rem;
	font-weight: 500;
	color: var(--text-color);
	cursor: pointer;
	border-radius: 4px;
	transition: background-color 0.2s ease;
	white-space: nowrap;
  }

  .more-menu-item:hover {
	background-color: var(--border-color);
  }

  .more-menu-item svg {
	width: 20px;
	height: 20px;
	flex-shrink: 0;
	fill: currentColor;
  }
  #theme-toggle-btn.more-menu-item {
	justify-content: flex-start;
	width: 100%;
	height: auto;
	border-radius: 4px;
  }
  #theme-toggle-btn {
	width: 100%;
	height: auto;
	border-radius: 4px;
	justify-content: flex-start;
  }

  #notes-section.date-grouping-enabled .date-group {
	margin-bottom: 1.5rem;
  }

  #notes-section.date-grouping-enabled .date-group-header {
	display: flex;
	align-items: center;
	cursor: pointer;
	margin-bottom: 1rem;
	position: sticky;
	top: -1px;
	z-index: 1;
  }

  #notes-section.date-grouping-enabled .date-group-header .date-divider {
	flex-grow: 1;
	display: flex;
	align-items: center;
	overflow: hidden;
	justify-content: center;
  }

  #notes-section.date-grouping-enabled .date-group-header .line {
	height: 1px;
	width: 100%;
	background: var(--border-color);
  }

  #notes-section.date-grouping-enabled .date-group-header .line:first-child {
	background: linear-gradient(to right, transparent, var(--border-color));
  }
  #notes-section.date-grouping-enabled .date-group-header .line:last-child {
	background: linear-gradient(to left, transparent, var(--border-color));
  }

  #notes-section.date-grouping-enabled .date-group-header .date-label {
	flex-shrink: 0;
	font-weight: 600;
	color: var(--text-secondary);
  }

  #notes-section.date-grouping-enabled .date-group-header .toggle-icon {
	font-size: 1.2em;
	width: 1em;
	height: 1em;
	color: var(--text-secondary);
	transition: transform 0.2s ease-in-out;
	flex-shrink: 0;
	margin-right: 0.25rem;
	transform-origin: center;
	will-change: transform;
  }

  #notes-section.date-grouping-enabled .date-group-header .toggle-icon.expanded {
	transform: rotate(0deg);
  }
  #notes-section.date-grouping-enabled .date-group-header .toggle-icon:not(.expanded) {
	transform: rotate(-90deg);
  }

  #notes-section.date-grouping-enabled .date-group.collapsed .date-group-content {
	display: none;
  }
  .note-content img,
  .note-content video {
	max-height: 450px;
	max-width: 100%;
	width: auto;
	object-fit: contain;
	display: block;
	margin: 0.5em auto;
	background-color: var(--bg-color);
	border-radius: var(--border-radius-base);
  }
  .pinned-notes-container {
	margin-bottom: 1rem;
  }

  .pinned-section-header {
	font-size: 0.9rem;
	text-align: center;
	font-weight: 600;
	color: var(--text-secondary);
	text-transform: uppercase;
	letter-spacing: 0.05em;
	margin-bottom: 1rem;
  }

  .attachment-img, .attachment-link {
	/* 为内部绝对定位的按钮提供参照物 */
	position: relative;
  }

  .share-file-btn {
	position: absolute;
	bottom: 4px;
	right: 40px;
	z-index: 2;
	background-color: rgba(0, 0, 0, 0.4);
	color: white;
	opacity: 0; /* 默认隐藏 */
	visibility: hidden;
	transform: scale(0.8);
	transition: opacity 0.2s ease, visibility 0.2s ease, transform 0.2s ease;
  }

  .share-file-btn:hover {
	background-color: rgba(0, 0, 0, 0.6);
  }

  .delete-file-btn {
	position: absolute;
	bottom: 4px;
	right: 4px;
	z-index: 2;
	background-color: rgba(229, 62, 62, 0.5);
	color: white;
	opacity: 0;
	visibility: hidden;
	transform: scale(0.8);
	transition: opacity 0.2s ease, visibility 0.2s ease, transform 0.2s ease, background-color 0.2s ease;
  }
  .delete-file-btn:hover {
	background-color: rgba(229, 62, 62, 0.8);
  }

  .attachment-img:hover .share-file-btn,
  .attachment-link:hover .share-file-btn,
  .attachment-item:hover .share-file-btn,
  .attachment-img:hover .delete-file-btn,
  .attachment-link:hover .delete-file-btn,
  .attachment-item:hover .delete-file-btn
  {
	opacity: 1;
	visibility: visible;
	transform: scale(1);
  }

  .share-file-btn.copied {
	background-color: var(--accent-color);
  }
  .timestamp-toggle-label {
	display: flex;
	align-items: center;
	gap: 0.35rem;
	font-size: 0.8rem;
	color: var(--text-secondary);
	cursor: pointer;
	padding: 4px 8px;
	border-radius: 4px;
	transition: background-color 0.2s ease;
	margin-right: auto;
  }
  .timestamp-toggle-label:hover {
	background-color: var(--border-color);
  }
  .timestamp-toggle-label input {
	margin: 0;
  }
  #toast-notification {
	position: fixed;
	top: 20px;
	left: 50%;
	transform: translateX(-50%);
	padding: 10px 20px;
	border-radius: 8px;
	color: white;
	background-color: var(--primary-color);
	box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
	z-index: 9999;
	opacity: 0;
	visibility: hidden;
	transition: opacity 0.3s ease, visibility 0.3s ease, top 0.3s ease;
	font-weight: 500;
  }

  #toast-notification.visible {
	opacity: 1;
	visibility: visible;
	top: 40px;
  }

  #toast-notification.toast-error {
	background-color: var(--danger-color);
  }

  #toast-notification.toast-info {
	background-color: var(--accent-color);
  }

  /* 拖拽时，被拖拽的源笔记的样式 */
  .note.is-drag-source {
	opacity: 0.5;
	border-style: dashed;
  }

  /* 拖拽时，可作为目标的笔记的样式 */
  .note.is-drag-target {
	outline: 2px dashed var(--primary-color);
	outline-offset: 2px;
	transform: scale(1.02);
	box-shadow: 0 8px 20px rgba(var(--primary-color-rgb), 0.3);
  }

  /* 拖拽时，鼠标下方跟随的“幽灵”元素 */
  #note-ghost-element {
	position: fixed;
	pointer-events: none;
	z-index: 9999;
	opacity: 0.75;
	transform: translate(-50%, -20px);
	transition: opacity 0.2s;
	will-change: top, left;
  }

  /* 当拖拽激活时，给 body 添加的类，用于全局样式控制 */
  body.note-dragging-active {
	user-select: none;
	cursor: grabbing;
  }

  #fs-color-popover {
	position: absolute;
  }


  .note-content.truncated {
	max-height: 350px; /* 控制折叠时的高度 */
	overflow: hidden;
	position: relative;
	/* 在底部添加一个渐变蒙版，以示还有更多内容 */
	-webkit-mask-image: linear-gradient(to bottom, black 80%, transparent 100%);
	mask-image: linear-gradient(to bottom, black 80%, transparent 100%);
  }

  .note.is-expanded .note-content.truncated {
	max-height: none; /* 移除高度限制 */
	-webkit-mask-image: none;
	mask-image: none;
  }

  .toggle-content-btn {
	display: none; /* 默认隐藏 */
	margin-top: 0.5rem;
	font-size: 0.85rem;
	font-weight: 500;
	color: var(--primary-color);
	background: none;
	border: none;
	padding: 4px 0;
	cursor: pointer;
  }

  .toggle-content-btn:hover {
	text-decoration: underline;
	background: none;
	transform: none;
  }

  .note.is-long .toggle-content-btn {
	display: inline-block; /* 当笔记很长时显示按钮 */
  }