/* Reset und Basis Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Dunkles Farbschema */
    --bg-primary: #0a0a0f;
    --bg-secondary: #1a1a2e;
    --bg-tertiary: #16213e;
    --bg-card: #0f3460;

    /* Knallige Akzente */
    --accent-primary: #00ff88;
    --accent-secondary: #00d4ff;
    --accent-danger: #ff3366;
    --accent-warning: #ffaa00;
    --accent-success: #00ff88;

    /* Textfarben */
    --text-primary: #ffffff;
    --text-secondary: #b0b0c0;
    --text-muted: #707080;

    /* Status Farben */
    --color-added: #00ff88;
    --color-removed: #ff3366;
    --color-modified: #ffaa00;
    --color-unchanged: #707080;

    /* Schatten */
    --shadow-small: 0 2px 8px rgba(0, 255, 136, 0.1);
    --shadow-medium: 0 4px 16px rgba(0, 255, 136, 0.15);
    --shadow-large: 0 8px 32px rgba(0, 255, 136, 0.2);
    --shadow-glow: 0 0 20px rgba(0, 255, 136, 0.3);

    /* Border Radius */
    --radius-small: 8px;
    --radius-medium: 12px;
    --radius-large: 16px;

    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-medium: 0.3s ease;
    --transition-slow: 0.5s ease;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
    color: var(--text-primary);
    min-height: 100vh;
    line-height: 1.6;
    overflow-x: hidden;
}

/* Container */
.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 20px;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Header */
.header {
    text-align: center;
    margin-bottom: 40px;
    padding: 40px 0;
    background: var(--bg-secondary);
    border-radius: var(--radius-large);
    box-shadow: var(--shadow-medium);
    position: relative;
    overflow: hidden;
}

.header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--accent-primary), var(--accent-secondary), var(--accent-primary));
    animation: gradientShift 3s ease-in-out infinite;
}

@keyframes gradientShift {
    0%, 100% { transform: translateX(-100%); }
    50% { transform: translateX(100%); }
}

.logo {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 15px;
    margin-bottom: 10px;
}

.logo i {
    font-size: 3rem;
    color: var(--accent-primary);
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); opacity: 1; }
    50% { transform: scale(1.05); opacity: 0.8; }
}

.logo h1 {
    font-size: 3rem;
    font-weight: 700;
    background: linear-gradient(45deg, var(--accent-primary), var(--accent-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin: 0;
}

.subtitle {
    color: var(--text-secondary);
    font-size: 1.1rem;
    margin: 0;
}

/* Main Content */
.main-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 30px;
}

/* Input Section (Editors) */
.input-section {
    background: var(--bg-tertiary);
    padding: 30px;
    border-radius: var(--radius-large);
    box-shadow: var(--shadow-medium);
    border: 1px solid rgba(0, 255, 136, 0.1);
}

.editor-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
    margin-bottom: 30px;
}

@media (max-width: 768px) {
    .editor-container {
        grid-template-columns: 1fr;
    }
}

.editor-box {
    background: var(--bg-card);
    border: 1px solid rgba(0, 255, 136, 0.2);
    border-radius: var(--radius-medium);
    overflow: hidden;
    transition: var(--transition-medium);
}

.editor-box:hover {
    border-color: var(--accent-primary);
    box-shadow: var(--shadow-small);
}

.editor-header {
    background: var(--bg-secondary);
    padding: 15px 20px;
    border-bottom: 1px solid rgba(0, 255, 136, 0.1);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.editor-header h3 {
    color: var(--text-primary);
    margin: 0;
    font-size: 1.1rem;
    display: flex;
    align-items: center;
    gap: 8px;
}

.editor-header h3 i {
    color: var(--accent-primary);
}

.editor-actions {
    display: flex;
    gap: 8px;
}

.editor-wrapper {
    position: relative;
}

.json-editor {
    width: 100%;
    height: 500px;
    background: var(--bg-primary);
    border: none;
    color: var(--text-primary);
    font-family: 'Courier New', Monaco, monospace;
    font-size: 14px;
    line-height: 1.5;
    padding: 20px;
    resize: vertical;
    outline: none;
}

.json-editor::placeholder {
    color: var(--text-muted);
    font-style: italic;
}

.editor-status {
    position: absolute;
    bottom: 10px;
    right: 15px;
    display: flex;
    align-items: center;
    gap: 8px;
    background: var(--bg-secondary);
    padding: 5px 10px;
    border-radius: 20px;
    font-size: 0.8rem;
    opacity: 0.8;
}

.status-indicator {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--accent-success);
    animation: pulse-green 2s infinite;
}

.status-indicator.error {
    background: var(--accent-danger);
    animation: pulse-red 2s infinite;
}

.status-indicator.warning {
    background: var(--accent-warning);
    animation: pulse-yellow 2s infinite;
}

@keyframes pulse-green {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

@keyframes pulse-red {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.3; }
}

@keyframes pulse-yellow {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.4; }
}

.status-text {
    color: var(--text-secondary);
}

/* Modal for Example Data */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(10, 10, 15, 0.9);
    z-index: 1000;
    overflow-y: auto;
}

.modal.active {
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-content {
    background: var(--bg-secondary);
    border: 1px solid var(--accent-primary);
    border-radius: var(--radius-large);
    width: 90%;
    max-width: 800px;
    max-height: 80vh;
    overflow: hidden;
    box-shadow: var(--shadow-large);
}

.modal-header {
    padding: 20px;
    border-bottom: 1px solid rgba(0, 255, 136, 0.1);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-header h3 {
    color: var(--text-primary);
    margin: 0;
    display: flex;
    align-items: center;
    gap: 10px;
}

.btn-close {
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 2rem;
    cursor: pointer;
    padding: 0;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: var(--transition-fast);
}

.btn-close:hover {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-primary);
}

.modal-body {
    padding: 20px;
    max-height: 60vh;
    overflow-y: auto;
}

.example-categories {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.example-category {
    background: var(--bg-tertiary);
    border-radius: var(--radius-medium);
    overflow: hidden;
}

.category-header {
    background: var(--bg-card);
    padding: 15px;
    border-bottom: 1px solid rgba(0, 255, 136, 0.1);
}

.category-title {
    color: var(--text-primary);
    font-weight: 600;
    margin: 0 0 5px 0;
}

.category-description {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin: 0;
}

.example-items {
    padding: 15px;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 15px;
}

.example-item {
    background: var(--bg-card);
    border: 1px solid rgba(0, 255, 136, 0.1);
    border-radius: var(--radius-small);
    padding: 15px;
    cursor: pointer;
    transition: var(--transition-fast);
}

.example-item:hover {
    border-color: var(--accent-primary);
    transform: translateY(-2px);
    box-shadow: var(--shadow-small);
}

.example-title {
    color: var(--accent-primary);
    font-weight: 600;
    margin: 0 0 10px 0;
    font-size: 1rem;
}

.example-preview {
    background: var(--bg-primary);
    border: 1px solid rgba(0, 255, 136, 0.1);
    border-radius: 4px;
    padding: 10px;
    font-family: 'Courier New', monospace;
    font-size: 0.8rem;
    color: var(--text-secondary);
    max-height: 100px;
    overflow-y: auto;
    white-space: pre-wrap;
    word-break: break-all;
}

.example-item:hover .example-preview {
    border-color: var(--accent-secondary);
}

/* Comparison Pair Styles */
.example-pair {
    background: var(--bg-card);
    border: 2px solid rgba(0, 255, 136, 0.2);
    border-radius: var(--radius-small);
    padding: 15px;
    cursor: pointer;
    transition: var(--transition-fast);
    margin-bottom: 15px;
}

.example-pair:hover {
    border-color: var(--accent-primary);
    transform: translateY(-2px);
    box-shadow: var(--shadow-medium);
    background: rgba(0, 255, 136, 0.05);
}

.pair-title {
    color: var(--accent-secondary);
    font-weight: 600;
    margin: 0 0 15px 0;
    font-size: 1.1rem;
    display: flex;
    align-items: center;
    gap: 8px;
}

.pair-previews {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
}

@media (max-width: 768px) {
    .pair-previews {
        grid-template-columns: 1fr;
    }
}

.pair-preview {
    background: var(--bg-primary);
    border: 1px solid rgba(0, 255, 136, 0.1);
    border-radius: 4px;
    padding: 10px;
}

.pair-preview strong {
    color: var(--accent-primary);
    display: block;
    margin-bottom: 8px;
    font-size: 0.9rem;
}

.preview-content {
    font-family: 'Courier New', monospace;
    font-size: 0.7rem;
    color: var(--text-secondary);
    max-height: 120px;
    overflow-y: auto;
    white-space: pre-wrap;
    word-break: break-all;
}

.example-pair:hover .preview-content {
    color: var(--text-primary);
}

.example-pair:hover .pair-preview {
    border-color: var(--accent-secondary);
}

/* Legacy Upload Section (hidden by default) */
.upload-section {
    display: none; /* Hidden unless explicitly needed */
}

.upload-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
    margin-bottom: 30px;
}

@media (max-width: 768px) {
    .upload-container {
        grid-template-columns: 1fr;
    }
}

.upload-box {
    background: var(--bg-card);
    border: 2px dashed rgba(0, 255, 136, 0.3);
    border-radius: var(--radius-medium);
    transition: var(--transition-medium);
    position: relative;
    overflow: hidden;
}

.upload-box:hover {
    border-color: var(--accent-primary);
    box-shadow: var(--shadow-glow);
}

.upload-box.dragover {
    border-color: var(--accent-secondary);
    background: rgba(0, 212, 255, 0.1);
    transform: scale(1.02);
}

.upload-area {
    padding: 40px 20px;
    text-align: center;
    transition: var(--transition-fast);
}

.upload-area i {
    font-size: 3rem;
    color: var(--accent-primary);
    margin-bottom: 20px;
}

.upload-area h3 {
    color: var(--text-primary);
    margin-bottom: 10px;
    font-size: 1.3rem;
}

.upload-area p {
    color: var(--text-secondary);
    margin-bottom: 20px;
}

.file-info {
    padding: 20px;
    background: rgba(0, 255, 136, 0.1);
    border-top: 2px solid var(--accent-primary);
    display: flex;
    align-items: center;
    gap: 10px;
}

.file-info i {
    color: var(--accent-primary);
    font-size: 1.5rem;
}

.file-info .filename {
    flex: 1;
    color: var(--text-primary);
    font-weight: 500;
}

/* Buttons */
.btn {
    padding: 12px 24px;
    border: none;
    border-radius: var(--radius-small);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-fast);
    display: inline-flex;
    align-items: center;
    gap: 8px;
    text-decoration: none;
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.btn:hover::before {
    width: 300px;
    height: 300px;
}

.btn-primary {
    background: linear-gradient(45deg, var(--accent-primary), var(--accent-secondary));
    color: var(--bg-primary);
    box-shadow: var(--shadow-small);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-medium);
}

.btn-primary:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}

.btn-secondary {
    background: var(--bg-card);
    color: var(--text-primary);
    border: 1px solid rgba(0, 255, 136, 0.3);
}

.btn-secondary:hover {
    background: rgba(0, 255, 136, 0.1);
    border-color: var(--accent-primary);
}

.btn-small {
    padding: 8px 16px;
    font-size: 0.9rem;
}

.btn-remove {
    background: var(--accent-danger);
    color: white;
    border: none;
    padding: 8px;
    border-radius: 50%;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.btn-remove:hover {
    background: #ff1144;
    transform: scale(1.1);
}

.action-buttons {
    display: flex;
    gap: 15px;
    justify-content: center;
    flex-wrap: wrap;
}

/* Options Section */
.options-section {
    background: var(--bg-tertiary);
    padding: 25px;
    border-radius: var(--radius-large);
    box-shadow: var(--shadow-medium);
    border: 1px solid rgba(0, 255, 136, 0.1);
}

.options-section h3 {
    color: var(--text-primary);
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.options-section h3 i {
    color: var(--accent-primary);
}

.options-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 15px;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 12px;
    cursor: pointer;
    color: var(--text-secondary);
    transition: var(--transition-fast);
}

.checkbox-label:hover {
    color: var(--text-primary);
}

.checkbox-label input[type="checkbox"] {
    display: none;
}

.checkmark {
    width: 20px;
    height: 20px;
    border: 2px solid rgba(0, 255, 136, 0.3);
    border-radius: 4px;
    position: relative;
    transition: var(--transition-fast);
}

.checkbox-label input[type="checkbox"]:checked + .checkmark {
    background: var(--accent-primary);
    border-color: var(--accent-primary);
}

.checkbox-label input[type="checkbox"]:checked + .checkmark::after {
    content: '✓';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: var(--bg-primary);
    font-weight: bold;
    font-size: 12px;
}

/* Results Section */
.results-section {
    background: var(--bg-tertiary);
    padding: 30px;
    border-radius: var(--radius-large);
    box-shadow: var(--shadow-medium);
    border: 1px solid rgba(0, 255, 136, 0.1);
    animation: fadeIn 0.5s ease;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.results-section h3 {
    color: var(--text-primary);
    margin-bottom: 25px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.results-section h3 i {
    color: var(--accent-primary);
}

/* Stats Container */
.stats-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.stat-card {
    background: var(--bg-card);
    padding: 20px;
    border-radius: var(--radius-medium);
    text-align: center;
    border: 1px solid rgba(0, 255, 136, 0.1);
    transition: var(--transition-fast);
}

.stat-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-small);
}

.stat-card.added {
    border-color: var(--color-added);
    background: rgba(0, 255, 136, 0.05);
}

.stat-card.removed {
    border-color: var(--color-removed);
    background: rgba(255, 51, 102, 0.05);
}

.stat-card.modified {
    border-color: var(--color-modified);
    background: rgba(255, 170, 0, 0.05);
}

.stat-card.unchanged {
    border-color: var(--color-unchanged);
    background: rgba(112, 112, 128, 0.05);
}

.stat-number {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 5px;
}

.stat-card.added .stat-number { color: var(--color-added); }
.stat-card.removed .stat-number { color: var(--color-removed); }
.stat-card.modified .stat-number { color: var(--color-modified); }
.stat-card.unchanged .stat-number { color: var(--color-unchanged); }

.stat-label {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* Diff Container */
.diff-controls {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
    flex-wrap: wrap;
    align-items: center;
}

.diff-content {
    background: var(--bg-card);
    border: 1px solid rgba(0, 255, 136, 0.1);
    border-radius: var(--radius-medium);
    max-height: 700px;
    overflow-y: auto;
}

/* View Toggle */
.view-toggle {
    display: flex;
    background: var(--bg-secondary);
    border-radius: var(--radius-small);
    padding: 4px;
    gap: 4px;
}

.view-toggle button {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    padding: 8px 16px;
    border-radius: 4px;
    cursor: pointer;
    transition: var(--transition-fast);
    font-size: 0.9rem;
}

.view-toggle button.active {
    background: var(--accent-primary);
    color: var(--bg-primary);
}

/* Enhanced Diff Styles */
.diff-item {
    border-bottom: 1px solid rgba(0, 255, 136, 0.1);
    transition: var(--transition-fast);
}

.diff-item:last-child {
    border-bottom: none;
}

.diff-header {
    padding: 15px 20px;
    background: var(--bg-secondary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: space-between;
    transition: var(--transition-fast);
    position: relative;
}

.diff-header:hover {
    background: rgba(0, 255, 136, 0.05);
}

.diff-header::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 4px;
    background: var(--color-unchanged);
    transition: var(--transition-fast);
}

.diff-item.modified .diff-header::before {
    background: var(--color-modified);
}

.diff-item.added .diff-header::before {
    background: var(--color-added);
}

.diff-item.removed .diff-header::before {
    background: var(--color-removed);
}

.diff-path {
    font-family: 'Courier New', monospace;
    color: var(--text-primary);
    font-weight: 500;
    font-size: 0.95rem;
}

.diff-status {
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.diff-status.added {
    background: var(--color-added);
    color: var(--bg-primary);
}

.diff-status.removed {
    background: var(--color-removed);
    color: white;
}

.diff-status.modified {
    background: var(--color-modified);
    color: var(--bg-primary);
}

.diff-status.unchanged {
    background: var(--color-unchanged);
    color: white;
}

.diff-content-inner {
    padding: 0;
    display: none;
}

.diff-item.expanded .diff-content-inner {
    display: block;
}

/* Side-by-Side View */
.side-by-side-view {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0;
    border-radius: 0;
    overflow: hidden;
}

.side-by-side-left,
.side-by-side-right {
    background: var(--bg-primary);
}

.side-by-side-left {
    border-right: 1px solid rgba(0, 255, 136, 0.1);
}

/* Enhanced right panel highlighting for side-by-side view */
.side-by-side-right .diff-value.new {
    background: rgba(0, 255, 136, 0.15);
    border-left: 3px solid #00ff88;
    padding-left: 12px;
    margin-left: -3px;
}

.side-by-side-right .diff-value.old {
    background: rgba(255, 51, 102, 0.15);
    border-left: 3px solid #ff3366;
    padding-left: 12px;
    margin-left: -3px;
}

.side-by-side-right .diff-values .diff-value.new + .diff-value.old {
    background: rgba(255, 170, 0, 0.15);
    border-left: 3px solid #ffaa00;
    padding-left: 12px;
    margin-left: -3px;
}

/* Inline diff highlighting - Character level changes - ULTRA STARK */
.diff-added-line {
    background: #00ff88 !important;
    color: #000000 !important;
    font-weight: 900 !important;
    padding: 5px 10px !important;
    border-radius: 5px !important;
    border: 3px solid #00ff88 !important;
    box-shadow: 0 0 15px #00ff88 !important;
    display: inline !important;
    text-decoration: none !important;
}

.diff-removed-line {
    background: #ff3366 !important;
    color: #ffffff !important;
    font-weight: 900 !important;
    text-decoration: line-through !important;
    padding: 5px 10px !important;
    border-radius: 5px !important;
    border: 3px solid #ff3366 !important;
    box-shadow: 0 0 15px #ff3366 !important;
    display: inline !important;
}

.diff-added-word {
    background: #00ff88 !important;
    color: #000000 !important;
    font-weight: 900 !important;
    padding: 4px 8px !important;
    border-radius: 4px !important;
    border: 2px solid #00ff88 !important;
    box-shadow: 0 0 10px #00ff88 !important;
    display: inline !important;
    text-decoration: none !important;
}

.diff-removed-word {
    background: #ff3366 !important;
    color: #ffffff !important;
    font-weight: 900 !important;
    text-decoration: line-through !important;
    padding: 4px 8px !important;
    border-radius: 4px !important;
    border: 2px solid #ff3366 !important;
    box-shadow: 0 0 10px #ff3366 !important;
    display: inline !important;
}

/* Enhanced visual feedback for modified values */
.side-by-side-right .diff-value.new pre {
    position: relative;
}

.side-by-side-right .diff-value.new pre::before {
    content: '✓ Modified';
    position: absolute;
    top: -20px;
    right: 10px;
    font-size: 0.75rem;
    color: #00ff88;
    font-weight: bold;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.side-by-side-right .diff-value.unchanged pre::before {
    display: none;
}

.side-by-side-right .diff-values .diff-value.old + .diff-value.new {
    background: rgba(255, 170, 0, 0.15);
    border-left: 3px solid #ffaa00;
    padding-left: 12px;
    margin-left: -3px;
}

.side-by-side-header {
    background: var(--bg-secondary);
    padding: 12px 20px;
    font-weight: 600;
    color: var(--text-primary);
    border-bottom: 1px solid rgba(0, 255, 136, 0.1);
    display: flex;
    align-items: center;
    gap: 8px;
}

.side-by-side-content {
    padding: 20px;
    font-family: 'Courier New', monospace;
    font-size: 0.9rem;
    line-height: 1.5;
    white-space: pre-wrap;
    word-break: break-all;
}

/* Side-by-side diff values - stronger styling */
.side-by-side-content .diff-value {
    margin-bottom: 15px;
    padding: 12px;
    border-radius: 6px;
    background: transparent;
}

.side-by-side-content .diff-value pre {
    margin: 0;
    background: transparent;
    font-family: 'Courier New', monospace;
    font-size: 0.9rem;
    line-height: 1.5;
    white-space: pre-wrap;
    word-wrap: break-word;
}

/* Plain JSON - no special highlighting */
.side-by-side-content pre.plain-json {
    color: var(--text-primary);
}

/* Highlighted JSON wrapper - for modified/added values */
.side-by-side-content .highlighted-diff {
    position: relative;
}

.side-by-side-content .highlighted-json {
    color: var(--text-primary) !important;
}

/* RIGHT PANEL - Modified/Added values with GREEN background */
.side-by-side-right .diff-value[data-status="added"],
.side-by-side-right .diff-value[data-status="modified"] {
    background: rgba(0, 255, 136, 0.25) !important;
    border-left: 5px solid #00ff88 !important;
    padding: 15px !important;
    box-shadow: inset 0 0 20px rgba(0, 255, 136, 0.1) !important;
}

/* LEFT PANEL - Removed values with RED background */
.side-by-side-left .diff-value[data-status="removed"] {
    background: rgba(255, 51, 102, 0.20) !important;
    border-left: 5px solid #ff3366 !important;
    padding: 15px !important;
    box-shadow: inset 0 0 20px rgba(255, 51, 102, 0.1) !important;
}

/* Placeholder for missing/extra content - NO UNDERLINE */
.side-by-side-content .diff-value.placeholder {
    background: transparent !important;
    border: none !important;
    padding: 15px !important;
    text-align: center;
    opacity: 0.3;
}

.side-by-side-content .placeholder-content {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 40px;
}

.side-by-side-content .placeholder-text {
    font-size: 1.5rem;
    color: var(--text-muted);
    font-weight: 300;
}

/* Remove any borders from placeholder */
.diff-value[data-status="missing"],
.diff-value[data-status="extra"] {
    border: none !important;
    background: transparent !important;
}

/* Inline Diff Highlighting */
.diff-added-line {
    background: rgba(0, 255, 136, 0.2);
    color: #00ff88;
    border-left: 3px solid var(--color-added);
    padding: 4px 8px;
    margin: 2px 0;
    border-radius: 4px;
    font-weight: 500;
    display: inline-block;
}

.diff-removed-line {
    background: rgba(255, 51, 102, 0.2);
    color: #ff6699;
    border-left: 3px solid var(--color-removed);
    padding: 4px 8px;
    margin: 2px 0;
    border-radius: 4px;
    font-weight: 500;
    text-decoration: line-through;
    display: inline-block;
}

.diff-modified-line {
    background: rgba(255, 170, 0, 0.2);
    color: #ffcc33;
    border-left: 3px solid var(--color-modified);
    padding: 4px 8px;
    margin: 2px 0;
    border-radius: 4px;
    font-weight: 500;
    display: inline-block;
}

/* Inline word diff - enhanced visibility */
.diff-added-word {
    background: rgba(0, 255, 136, 0.25);
    color: #00ff88;
    padding: 3px 6px;
    border-radius: 4px;
    font-weight: 700;
    border: 1px solid rgba(0, 255, 136, 0.4);
    box-shadow: 0 1px 3px rgba(0, 255, 136, 0.2);
}

.diff-removed-word {
    background: rgba(255, 51, 102, 0.25);
    color: #ff6699;
    padding: 3px 6px;
    border-radius: 4px;
    font-weight: 700;
    text-decoration: line-through;
    border: 1px solid rgba(255, 51, 102, 0.4);
    box-shadow: 0 1px 3px rgba(255, 51, 102, 0.2);
}

.diff-modified-word {
    background: rgba(255, 170, 0, 0.25);
    color: #ffcc33;
    padding: 3px 6px;
    border-radius: 4px;
    font-weight: 700;
    border: 1px solid rgba(255, 170, 0, 0.4);
    box-shadow: 0 1px 3px rgba(255, 170, 0, 0.2);
}

/* Enhanced Value Display */
.diff-values {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0;
}

.diff-value {
    background: var(--bg-primary);
    padding: 20px;
    position: relative;
    font-family: 'Courier New', monospace;
    font-size: 0.9rem;
    line-height: 1.5;
}

.diff-value.old {
    background: rgba(255, 51, 102, 0.05);
    border-right: 1px solid rgba(255, 51, 102, 0.2);
}

.diff-value.new {
    background: rgba(0, 255, 136, 0.05);
}

.diff-value.unchanged {
    grid-column: 1 / -1;
    background: var(--bg-secondary);
}

.diff-label {
    position: absolute;
    top: -12px;
    left: 15px;
    background: var(--bg-card);
    padding: 4px 12px;
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    z-index: 1;
}

.diff-value.old .diff-label {
    color: var(--color-removed);
    border: 1px solid rgba(255, 51, 102, 0.3);
}

.diff-value.new .diff-label {
    color: var(--color-added);
    border: 1px solid rgba(0, 255, 136, 0.3);
}

.diff-value.unchanged .diff-label {
    color: var(--color-unchanged);
    border: 1px solid rgba(112, 112, 128, 0.3);
}

/* Block Indicators for Missing/Extra Content */
.missing-block {
    background: rgba(255, 51, 102, 0.1);
    border: 2px dashed var(--color-removed);
    border-radius: var(--radius-small);
    padding: 20px;
    margin: 10px 0;
    text-align: center;
    color: var(--color-removed);
    font-style: italic;
}

.extra-block {
    background: rgba(0, 255, 136, 0.1);
    border: 2px dashed var(--color-added);
    border-radius: var(--radius-small);
    padding: 20px;
    margin: 10px 0;
    text-align: center;
    color: var(--color-added);
    font-style: italic;
}

/* Code block styling */
.diff-value pre {
    margin: 0;
    padding: 15px;
    background: transparent;
    border: none;
    border-radius: 0;
    overflow-x: auto;
    font-size: 0.9rem;
    line-height: 1.5;
}

/* Line numbers for better reference */
.line-numbers {
    background: var(--bg-secondary);
    color: var(--text-muted);
    padding: 15px 10px;
    text-align: right;
    user-select: none;
    font-family: 'Courier New', monospace;
    font-size: 0.8rem;
    border-right: 1px solid rgba(0, 255, 136, 0.1);
}

.line-content {
    flex: 1;
    padding: 15px;
}

/* Responsive Design */
@media (max-width: 768px) {
    .diff-values,
    .side-by-side-view {
        grid-template-columns: 1fr;
    }

    .diff-value.old {
        border-right: none;
        border-bottom: 1px solid rgba(255, 51, 102, 0.2);
    }

    .side-by-side-left {
        border-right: none;
        border-bottom: 1px solid rgba(0, 255, 136, 0.1);
    }

    .view-toggle {
        flex-wrap: wrap;
    }

    .diff-controls {
        flex-direction: column;
        align-items: stretch;
    }

    .view-toggle {
        order: 2;
        margin-top: 10px;
    }
}

.diff-content::-webkit-scrollbar {
    width: 8px;
}

.diff-content::-webkit-scrollbar-track {
    background: var(--bg-secondary);
}

.diff-content::-webkit-scrollbar-thumb {
    background: var(--accent-primary);
    border-radius: 4px;
}

.diff-content::-webkit-scrollbar-thumb:hover {
    background: var(--accent-secondary);
}

/* Diff Styles */
.diff-item {
    border-bottom: 1px solid rgba(0, 255, 136, 0.1);
}

.diff-item:last-child {
    border-bottom: none;
}

.diff-header {
    padding: 15px;
    background: var(--bg-secondary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: space-between;
    transition: var(--transition-fast);
}

.diff-header:hover {
    background: rgba(0, 255, 136, 0.05);
}

.diff-path {
    font-family: 'Courier New', monospace;
    color: var(--text-primary);
    font-weight: 500;
}

.diff-status {
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
}

.diff-status.added {
    background: var(--color-added);
    color: var(--bg-primary);
}

.diff-status.removed {
    background: var(--color-removed);
    color: white;
}

.diff-status.modified {
    background: var(--color-modified);
    color: var(--bg-primary);
}

.diff-status.unchanged {
    background: var(--color-unchanged);
    color: white;
}

.diff-content-inner {
    padding: 20px;
    display: none;
}

.diff-item.expanded .diff-content-inner {
    display: block;
}

.diff-values {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

@media (max-width: 768px) {
    .diff-values {
        grid-template-columns: 1fr;
    }
}

.diff-value {
    background: var(--bg-primary);
    padding: 15px;
    border-radius: var(--radius-small);
    position: relative;
}

.diff-value::before {
    content: attr(data-label);
    position: absolute;
    top: -10px;
    left: 10px;
    background: var(--bg-secondary);
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.diff-value.old {
    border-left: 3px solid var(--color-removed);
}

.diff-value.new {
    border-left: 3px solid var(--color-added);
}

pre {
    margin: 0;
    font-family: 'Courier New', monospace;
    font-size: 0.9rem;
    line-height: 1.4;
    overflow-x: auto;
}

/* Loading Overlay */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(10, 10, 15, 0.9);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

.loading-overlay.active {
    display: flex;
}

.loading-spinner {
    text-align: center;
    color: var(--accent-primary);
}

.loading-spinner i {
    font-size: 3rem;
    margin-bottom: 20px;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.loading-spinner p {
    font-size: 1.2rem;
    color: var(--text-primary);
}

/* Footer */
.footer {
    text-align: center;
    padding: 20px 0;
    color: var(--text-muted);
    border-top: 1px solid rgba(0, 255, 136, 0.1);
    margin-top: 40px;
}

/* Utility Classes */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.hidden { display: none !important; }
.visible { display: block !important; }

/* Responsive Design */
@media (max-width: 768px) {
    .container {
        padding: 15px;
    }

    .logo h1 {
        font-size: 2rem;
    }

    .logo i {
        font-size: 2rem;
    }

    .upload-area {
        padding: 30px 15px;
    }

    .upload-area i {
        font-size: 2rem;
    }

    .stats-container {
        grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
        gap: 15px;
    }

    .stat-number {
        font-size: 1.5rem;
    }
}

@media (max-width: 480px) {
    .action-buttons {
        flex-direction: column;
    }

    .btn {
        width: 100%;
        justify-content: center;
    }

    .diff-controls {
        flex-direction: column;
    }

    .diff-controls .btn {
        width: 100%;
    }
}

/* Print Styles */
@media print {
    body {
        background: white;
        color: black;
    }

    .header,
    .upload-section,
    .options-section,
    .footer,
    .diff-controls {
        display: none;
    }

    .results-section {
        box-shadow: none;
        border: 1px solid #ccc;
    }
}