/**
 * TEI XML Diff Viewer Styles
 */

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: #f5f5f5;
    padding: 20px;
}

.header {
    background: white;
    padding: 20px;
    margin-bottom: 20px;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.header h1 {
    font-size: 24px;
    margin-bottom: 10px;
    color: #333;
}

.header .titles {
    display: flex;
    justify-content: space-between;
    color: #666;
    font-size: 14px;
}

.header .summary {
    margin-top: 10px;
    padding: 10px;
    background: #f8f9fa;
    border-radius: 4px;
    font-size: 13px;
    color: #495057;
}

.header .controls {
    margin-top: 10px;
    display: flex;
    gap: 15px;
    align-items: center;
}

.toggle-switch {
    position: relative;
    display: inline-block;
    width: 50px;
    height: 24px;
}

.toggle-switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.toggle-slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: #ccc;
    transition: .4s;
    border-radius: 24px;
}

.toggle-slider:before {
    position: absolute;
    content: "";
    height: 18px;
    width: 18px;
    left: 3px;
    bottom: 3px;
    background-color: white;
    transition: .4s;
    border-radius: 50%;
}

input:checked + .toggle-slider {
    background-color: #2196F3;
}

input:checked + .toggle-slider:before {
    transform: translateX(26px);
}

.toggle-label {
    font-size: 13px;
    color: #495057;
}

.diff-block {
    background: white;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    margin-bottom: 20px;
    overflow: hidden;
}

.diff-block-header {
    background: #f8f9fa;
    padding: 8px 16px;
    border-bottom: 1px solid #dee2e6;
    font-size: 12px;
    color: #6c757d;
    font-weight: 600;
}

.diff-container {
    display: flex;
}

.diff-pane {
    flex: 1;
    padding: 16px;
    font-family: 'Monaco', 'Courier New', monospace;
    font-size: 13px;
    line-height: 1.6;
    white-space: pre-wrap;
    word-wrap: break-word;
    overflow-x: auto;
}

.diff-pane:first-child {
    border-right: 2px solid #dee2e6;
}

.diff-line {
    display: flex;
    cursor: pointer;
    transition: background-color 0.15s;
}

.diff-line:hover {
    background-color: rgba(0, 0, 0, 0.05) !important;
}

.diff-line:active {
    background-color: rgba(0, 0, 0, 0.1) !important;
}

.line-number {
    color: #999;
    text-align: right;
    padding-right: 12px;
    min-width: 50px;
    user-select: none;
    flex-shrink: 0;
}

.line-content {
    flex: 1;
}

/* Syntax highlighting overrides for Prism */
.line-content code[class*="language-"] {
    background: transparent;
    padding: 0;
    margin: 0;
    font-size: inherit;
    line-height: inherit;
    white-space: pre-wrap;
    word-wrap: break-word;
}

/* Diff highlighting - neutral colors to avoid value judgments */
.diff-added {
    background-color: #d1ecf1 !important;  /* Light blue */
}

.diff-removed {
    background-color: #e2e3e5 !important;  /* Light gray */
}

.diff-modified {
    background-color: #fff3cd !important;  /* Light yellow */
}

/* Ensure Prism tokens are visible on colored backgrounds */
.diff-added .token,
.diff-removed .token {
    background: transparent !important;
}

/* Inline diff highlighting */
.inline-added {
    background-color: #9fcddc;  /* Darker blue */
    padding: 2px 0;
}

.inline-removed {
    background-color: #c6c8ca;  /* Darker gray */
    padding: 2px 0;
}

/* Ellipsis marker for cropped content */
.ellipsis {
    color: #999;
    font-style: italic;
    background: #f0f0f0;
    padding: 0 4px;
    margin: 0 2px;
    border-radius: 2px;
    font-size: 11px;
    user-select: none;
}

.empty-message {
    text-align: center;
    padding: 40px;
    color: #6c757d;
    font-style: italic;
}