/* ============================================
   Markdown笔记应用 - 编辑器样式
   ============================================ */

/* ============================================
   编辑器特定样式
   ============================================ */

/* 编辑器焦点状态 */
.editor:focus {
    box-shadow: inset 0 0 0 2px var(--accent-light);
}

/* 编辑器占位符 */
.editor:placeholder-shown {
    background-image: linear-gradient(to bottom, transparent 95%, var(--border-color) 95%);
    background-size: 100% var(--line-height-base);
}

/* 编辑器选择样式 */
.editor::selection {
    background-color: var(--accent-light);
}

/* ============================================
   行号样式
   ============================================ */
.line-numbers {
}

.line-numbers .line-number {
    display: block;
}

/* 当前行高亮 */
.line-numbers .line-number.active {
    color: var(--accent-color);
    font-weight: 600;
}

/* ============================================
   编辑器滚动条
   ============================================ */
.editor::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

.editor::-webkit-scrollbar-track {
    background: var(--bg-primary);
}

.editor::-webkit-scrollbar-thumb {
    background: var(--border-dark);
    border-radius: 5px;
    border: 2px solid var(--bg-primary);
}

.editor::-webkit-scrollbar-thumb:hover {
    background: var(--text-tertiary);
}

.editor::-webkit-scrollbar-corner {
    background: var(--bg-primary);
}

/* ============================================
   拖拽调整大小
   ============================================ */
.resize-handle {
    position: absolute;
    top: 0;
    bottom: 0;
    width: 4px;
    cursor: col-resize;
    background: transparent;
    transition: background-color var(--transition-fast);
    z-index: 10;
}

.resize-handle:hover,
.resize-handle.active {
    background-color: var(--accent-color);
}

.resize-handle.sidebar-handle {
    right: -2px;
}

.resize-handle.preview-handle {
    left: -2px;
}

/* 拖拽时的遮罩 */
.resize-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    cursor: col-resize;
    z-index: 9999;
}

/* ============================================
   编辑器工具提示
   ============================================ */
.tool-btn {
    position: relative;
}

.tool-btn::after {
    content: attr(title);
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%) translateY(-4px);
    padding: var(--spacing-xs) var(--spacing-sm);
    background-color: var(--bg-tertiary);
    color: var(--text-primary);
    font-size: var(--font-size-xs);
    white-space: nowrap;
    border-radius: var(--radius-sm);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-fast);
    pointer-events: none;
    z-index: 100;
}

.tool-btn:hover::after {
    opacity: 1;
    visibility: visible;
}

/* ============================================
   自动完成提示
   ============================================ */
.autocomplete-popup {
    position: absolute;
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    max-height: 200px;
    overflow-y: auto;
    z-index: 100;
    min-width: 150px;
}

.autocomplete-item {
    padding: var(--spacing-sm) var(--spacing-md);
    cursor: pointer;
    font-size: var(--font-size-sm);
    color: var(--text-primary);
    transition: background-color var(--transition-fast);
}

.autocomplete-item:hover,
.autocomplete-item.selected {
    background-color: var(--accent-light);
}

.autocomplete-item .highlight {
    color: var(--accent-color);
    font-weight: 600;
}

/* ============================================
   查找替换对话框
   ============================================ */
.find-replace-dialog {
    position: absolute;
    top: var(--toolbar-height);
    right: var(--spacing-md);
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    padding: var(--spacing-md);
    z-index: 50;
    min-width: 300px;
}

.find-replace-dialog.hidden {
    display: none;
}

.find-replace-inputs {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

.find-replace-inputs input {
    padding: var(--spacing-sm) var(--spacing-md);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    font-size: var(--font-size-sm);
}

.find-replace-inputs input:focus {
    outline: none;
    border-color: var(--accent-color);
}

.find-replace-actions {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: flex-end;
}

.find-replace-actions button {
    padding: var(--spacing-xs) var(--spacing-md);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    background-color: var(--bg-secondary);
    color: var(--text-primary);
    font-size: var(--font-size-sm);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.find-replace-actions button:hover {
    background-color: var(--bg-hover);
}

.find-replace-actions button.primary {
    background-color: var(--accent-color);
    border-color: var(--accent-color);
    color: var(--text-inverse);
}

.find-replace-actions button.primary:hover {
    background-color: var(--accent-hover);
}

.find-replace-options {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
    font-size: var(--font-size-xs);
    color: var(--text-secondary);
}

.find-replace-options label {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    cursor: pointer;
}

/* ============================================
   语法提示
   ============================================ */
.syntax-hint {
    position: absolute;
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: var(--font-size-xs);
    color: var(--text-secondary);
    pointer-events: none;
    z-index: 50;
}

/* ============================================
   编辑器光标
   ============================================ */
.editor {
    caret-color: var(--accent-color);
}

/* 覆盖模式光标 */
.editor.overtype {
    caret-color: var(--error-color);
}

/* ============================================
   编辑器动画
   ============================================ */
@keyframes flash {
    0%, 100% { background-color: transparent; }
    50% { background-color: var(--accent-light); }
}

.editor-flash {
    animation: flash 0.3s ease;
}

/* ============================================
   专注模式
   ============================================ */
.focus-mode .app-header,
.focus-mode .sidebar,
.focus-mode .preview-section,
.focus-mode .editor-toolbar {
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition-slow);
}

.focus-mode .editor-section {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 1000;
}

.focus-mode:hover .app-header,
.focus-mode:hover .sidebar,
.focus-mode:hover .preview-section,
.focus-mode:hover .editor-toolbar {
    opacity: 1;
    pointer-events: auto;
}

/* 专注模式提示 */
.focus-mode-hint {
    position: fixed;
    top: var(--spacing-md);
    left: 50%;
    transform: translateX(-50%);
    padding: var(--spacing-sm) var(--spacing-md);
    background-color: var(--bg-secondary);
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    opacity: 0;
    transition: opacity var(--transition-base);
    pointer-events: none;
    z-index: 1001;
}

.focus-mode .focus-mode-hint {
    opacity: 1;
}

/* ============================================
   只读模式
   ============================================ */
.editor.readonly {
    background-color: var(--bg-secondary);
    cursor: not-allowed;
}

/* ============================================
   编辑器加载状态
   ============================================ */
.editor-loading {
    position: relative;
}

.editor-loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 40px;
    height: 40px;
    margin: -20px 0 0 -20px;
    border: 3px solid var(--border-color);
    border-top-color: var(--accent-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

/* ============================================
   差异对比视图
   ============================================ */
.diff-view {
    display: flex;
    flex-direction: column;
    height: 100%;
}

.diff-header {
    display: flex;
    justify-content: space-between;
    padding: var(--spacing-md);
    background-color: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
}

.diff-content {
    flex: 1;
    overflow-y: auto;
    font-family: var(--font-family-mono);
    font-size: var(--font-size-sm);
    line-height: 1.5;
}

.diff-line {
    display: flex;
    padding: 2px var(--spacing-md);
}

.diff-line-number {
    width: 50px;
    color: var(--text-tertiary);
    text-align: right;
    margin-right: var(--spacing-md);
    user-select: none;
}

.diff-line-content {
    flex: 1;
    white-space: pre-wrap;
    word-break: break-all;
}

.diff-line.added {
    background-color: rgba(76, 175, 80, 0.1);
}

.diff-line.added .diff-line-content {
    color: var(--success-color);
}

.diff-line.removed {
    background-color: rgba(244, 67, 54, 0.1);
}

.diff-line.removed .diff-line-content {
    color: var(--error-color);
}

.diff-line.unchanged {
    background-color: transparent;
}

/* ============================================
   字数统计弹窗
   ============================================ */
.stats-popup {
    position: absolute;
    bottom: calc(var(--status-height) + var(--spacing-md));
    right: var(--spacing-md);
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    padding: var(--spacing-lg);
    min-width: 200px;
    z-index: 50;
}

.stats-popup.hidden {
    display: none;
}

.stats-popup h4 {
    margin-bottom: var(--spacing-md);
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

.stats-item {
    display: flex;
    justify-content: space-between;
    padding: var(--spacing-xs) 0;
    font-size: var(--font-size-sm);
}

.stats-item .label {
    color: var(--text-secondary);
}

.stats-item .value {
    font-weight: 600;
    color: var(--text-primary);
}

/* ============================================
   深色主题编辑器适配
   ============================================ */
[data-theme="dark"] .editor {
    caret-color: var(--accent-color);
}

[data-theme="dark"] .line-numbers {
    color: var(--text-tertiary);
}

[data-theme="dark"] .line-numbers .line-number.active {
    color: var(--accent-color);
}

[data-theme="dark"] .autocomplete-popup {
    background-color: var(--bg-secondary);
    border-color: var(--border-color);
}

[data-theme="dark"] .autocomplete-item:hover,
[data-theme="dark"] .autocomplete-item.selected {
    background-color: var(--accent-light);
}

[data-theme="dark"] .find-replace-dialog {
    background-color: var(--bg-secondary);
}

[data-theme="dark"] .find-replace-inputs input {
    background-color: var(--bg-tertiary);
    border-color: var(--border-color);
}

[data-theme="dark"] .stats-popup {
    background-color: var(--bg-secondary);
}