/* JSON Tools - Complete Styles with Light/Dark Theme Support */

/* ===== CSS Variables ===== */
.json-tools-container {
    --json-primary: var(--primary-color, #3498db);
    --json-secondary: var(--secondary-color, #2ecc71);
    --json-bg: var(--card-bg-color, #fcfcfc);
    --json-surface: var(--background-color, #ffffff);
    --json-text: var(--text-color, #333333);
    --json-text-muted: #6c757d;
    --json-border: var(--border-color, rgba(52, 152, 219, 0.1));
    --json-shadow: var(--box-shadow, 0 4px 6px rgba(0, 0, 0, 0.1));
    --json-radius: var(--border-radius-md, 8px);
    --json-radius-lg: var(--border-radius-lg, 16px);
    --json-transition: var(--transition-fast, 0.2s ease);
    --json-gradient: linear-gradient(135deg, var(--json-primary), var(--json-secondary));
    --json-success: #27ae60;
    --json-warning: #f39c12;
    --json-danger: #e74c3c;
    --json-info: #3498db;

    /* Syntax Highlighting Colors - Light */
    --json-key: #2563eb;
    --json-string: #059669;
    --json-number: #d97706;
    --json-boolean: #7c3aed;
    --json-null: #64748b;
    --json-bracket: #374151;
}

.dark-theme .json-tools-container {
    --json-text-muted: #9ca3af;
    --json-surface: #1a1d24;
    --json-bg: #242830;

    /* Syntax Highlighting Colors - Dark */
    --json-key: #60a5fa;
    --json-string: #34d399;
    --json-number: #fbbf24;
    --json-boolean: #a78bfa;
    --json-null: #94a3b8;
    --json-bracket: #e5e7eb;
}

/* ===== Base Container ===== */
.json-tools-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 1.5rem;
    font-family: var(--font-family, 'Inter', sans-serif);
    color: var(--json-text);
}

/* ===== Header ===== */
.json-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem;
    background: linear-gradient(135deg, rgba(var(--primary-rgb), 0.1), rgba(var(--secondary-rgb), 0.05));
    border-radius: 16px;
    border: 1px solid rgba(var(--primary-rgb), 0.15);
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.json-header .header-content {
    display: flex;
    align-items: center;
    gap: 1.25rem;
}

.json-header .header-icon {
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 16px;
    font-size: 1.75rem;
    color: white;
    box-shadow: 0 8px 24px rgba(var(--primary-rgb), 0.35);
}

.json-header h2 {
    margin: 0 0 0.25rem 0;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--json-text);
}

.json-header p {
    margin: 0;
    opacity: 0.7;
    font-size: 0.9rem;
    color: var(--json-text);
}

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

.json-tools-container .btn-icon {
    width: 44px;
    height: 44px;
    padding: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    background: var(--card-background);
    color: var(--text-color);
    cursor: pointer;
    transition: all 0.3s ease;
}

.json-tools-container .btn-icon:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
    background: rgba(var(--primary-rgb), 0.05);
}

.json-tools-container .btn-icon:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* ===== Privacy Notice ===== */
.privacy-notice {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    border-radius: var(--json-radius);
    margin-bottom: 1.5rem;
    font-size: 0.9rem;
    background: linear-gradient(135deg, rgba(39, 174, 96, 0.1), rgba(52, 152, 219, 0.1));
    border: 1px solid rgba(39, 174, 96, 0.2);
    color: var(--json-success);
}

.dark-theme .privacy-notice {
    background: rgba(39, 174, 96, 0.15);
}

/* ===== Buttons ===== */
.json-tools-container .btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    border-radius: var(--json-radius);
    border: none;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--json-transition);
    text-decoration: none;
}

.json-tools-container .btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
}

.json-tools-container .btn-primary {
    background: var(--json-gradient);
    color: #fff !important;
    box-shadow: 0 4px 15px rgba(52, 152, 219, 0.3);
}

.json-tools-container .btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(52, 152, 219, 0.4);
}

.json-tools-container .btn-secondary {
    background: var(--json-bg);
    color: var(--json-text);
    border: 2px solid var(--json-border);
}

.json-tools-container .btn-secondary:hover {
    background: rgba(var(--primary-rgb), 0.1);
    border-color: var(--json-primary);
}

.json-tools-container .btn-outline {
    background: transparent;
    color: var(--json-primary);
    border: 2px solid var(--json-primary);
}

.json-tools-container .btn-outline:hover {
    background: var(--json-primary);
    color: #fff;
}

.json-tools-container .btn-success {
    background: var(--json-success);
    color: #fff;
}

.json-tools-container .btn-danger {
    background: var(--json-danger);
    color: #fff;
}

/* ===== Input Section ===== */
.json-input-section {
    background: var(--json-bg);
    border-radius: var(--json-radius-lg);
    border: 1px solid var(--json-border);
    margin-bottom: 1.5rem;
    overflow: hidden;
}

.input-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 1.25rem;
    background: rgba(var(--primary-rgb), 0.05);
    border-bottom: 1px solid var(--json-border);
    flex-wrap: wrap;
    gap: 0.75rem;
}

.input-header h3 {
    margin: 0;
    font-size: 1rem;
    font-weight: 600;
    color: var(--json-text);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.input-actions {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.input-wrapper {
    display: flex;
    position: relative;
}

.line-numbers {
    width: 50px;
    padding: 1rem 0.5rem;
    background: rgba(var(--primary-rgb), 0.03);
    border-right: 1px solid var(--json-border);
    text-align: right;
    font-family: 'Monaco', 'Menlo', 'Consolas', monospace;
    font-size: 0.85rem;
    line-height: 1.6;
    color: var(--json-text-muted);
    user-select: none;
    overflow: hidden;
}

.line-numbers span {
    display: block;
}

#json-input {
    flex: 1;
    min-height: 300px;
    padding: 1rem;
    border: none;
    background: var(--json-surface);
    color: var(--json-text);
    font-family: 'Monaco', 'Menlo', 'Consolas', monospace;
    font-size: 0.9rem;
    line-height: 1.6;
    resize: vertical;
    outline: none;
}

#json-input:focus {
    background: var(--json-bg);
}

#json-input::placeholder {
    color: var(--json-text-muted);
    opacity: 0.7;
}

.input-status {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem 1.25rem;
    background: rgba(var(--primary-rgb), 0.03);
    border-top: 1px solid var(--json-border);
    font-size: 0.85rem;
}

.status-indicator {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.status-indicator i {
    font-size: 0.6rem;
}

.status-indicator.valid i {
    color: var(--json-success);
}

.status-indicator.invalid i {
    color: var(--json-danger);
}

.status-indicator.pending i {
    color: var(--json-warning);
}

.status-right {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--json-text-muted);
}

.separator {
    color: var(--json-text-muted);
    opacity: 0.5;
}

/* ===== Error Display ===== */
.error-display {
    background: linear-gradient(135deg, rgba(231, 76, 60, 0.1), rgba(231, 76, 60, 0.05));
    border: 1px solid rgba(231, 76, 60, 0.3);
    border-radius: var(--json-radius);
    margin-bottom: 1.5rem;
    overflow: hidden;
}

.error-header {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    background: rgba(231, 76, 60, 0.15);
    color: var(--json-danger);
    font-weight: 600;
}

.error-details {
    padding: 1rem;
}

.error-message {
    font-family: 'Monaco', 'Menlo', 'Consolas', monospace;
    font-size: 0.9rem;
    color: var(--json-danger);
    margin-bottom: 0.5rem;
}

.error-location {
    font-size: 0.85rem;
    color: var(--json-text-muted);
}

.error-location strong {
    color: var(--json-danger);
}

/* ===== Tool Tabs ===== */
.tool-tabs {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
    padding: 0.5rem;
    background: var(--json-bg);
    border-radius: var(--json-radius);
    border: 1px solid var(--json-border);
    overflow-x: auto;
}

.tool-tab {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.25rem;
    border: none;
    background: transparent;
    color: var(--json-text-muted);
    border-radius: var(--json-radius);
    cursor: pointer;
    font-weight: 500;
    transition: var(--json-transition);
    white-space: nowrap;
}

.tool-tab:hover {
    background: var(--json-surface);
    color: var(--json-text);
}

.tool-tab.active {
    background: var(--json-gradient);
    color: #fff;
    box-shadow: 0 2px 8px rgba(52, 152, 219, 0.3);
}

/* ===== Tool Panels ===== */
.tool-panel {
    display: none;
    background: var(--json-bg);
    border-radius: var(--json-radius);
    border: 1px solid var(--json-border);
    padding: 1.5rem;
}

.tool-panel.active {
    display: block;
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.panel-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.panel-header h3 {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin: 0;
    font-size: 1.25rem;
    color: var(--json-text);
}

.panel-content {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

/* ===== Action Buttons ===== */
.action-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.action-buttons.center {
    justify-content: center;
}

/* ===== Output Section ===== */
.output-section {
    background: var(--json-surface);
    border-radius: var(--json-radius);
    border: 1px solid var(--json-border);
    overflow: hidden;
}

.output-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem 1rem;
    background: rgba(var(--primary-rgb), 0.05);
    border-bottom: 1px solid var(--json-border);
    flex-wrap: wrap;
    gap: 0.5rem;
}

.output-header span {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 500;
    color: var(--json-text);
}

.output-actions {
    display: flex;
    gap: 0.5rem;
}

.output-code {
    padding: 1rem;
    margin: 0;
    max-height: 400px;
    overflow: auto;
    font-family: 'Monaco', 'Menlo', 'Consolas', monospace;
    font-size: 0.85rem;
    line-height: 1.6;
    background: var(--json-surface);
    color: var(--json-text);
    white-space: pre-wrap;
    word-wrap: break-word;
}

.output-stats {
    padding: 0.75rem 1rem;
    background: rgba(var(--primary-rgb), 0.03);
    border-top: 1px solid var(--json-border);
    font-size: 0.85rem;
    color: var(--json-text-muted);
}

/* ===== Validation Result ===== */
.validation-result {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 3rem;
    background: var(--json-surface);
    border-radius: var(--json-radius);
    border: 1px solid var(--json-border);
    text-align: center;
}

.validation-result .result-icon {
    font-size: 4rem;
    margin-bottom: 1rem;
    color: var(--json-text-muted);
}

.validation-result.valid .result-icon {
    color: var(--json-success);
}

.validation-result.invalid .result-icon {
    color: var(--json-danger);
}

.validation-result .result-text {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--json-text);
}

.validation-result.valid .result-text {
    color: var(--json-success);
}

.validation-result.invalid .result-text {
    color: var(--json-danger);
}

/* ===== JSON Info Grid ===== */
.json-info {
    background: var(--json-surface);
    border-radius: var(--json-radius);
    border: 1px solid var(--json-border);
    padding: 1.5rem;
}

.json-info h4 {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin: 0 0 1rem;
    font-size: 1rem;
    color: var(--json-text);
}

.info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: 1rem;
}

.info-item {
    display: flex;
    flex-direction: column;
    padding: 1rem;
    background: rgba(var(--primary-rgb), 0.05);
    border-radius: var(--json-radius);
    text-align: center;
}

.info-label {
    font-size: 0.8rem;
    color: var(--json-text-muted);
    margin-bottom: 0.25rem;
}

.info-value {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--json-primary);
}

/* ===== Tree View ===== */
.tree-container {
    background: var(--json-surface);
    border-radius: var(--json-radius);
    border: 1px solid var(--json-border);
    padding: 1.5rem;
    max-height: 500px;
    overflow: auto;
}

.tree-placeholder,
.results-placeholder,
.history-placeholder {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 3rem;
    text-align: center;
    color: var(--json-text-muted);
}

.tree-placeholder i,
.results-placeholder i,
.history-placeholder i {
    font-size: 3rem;
    margin-bottom: 1rem;
    opacity: 0.5;
}

.tree-node {
    list-style: none;
    margin: 0;
    padding: 0;
}

.tree-item {
    padding-left: 1.5rem;
    position: relative;
}

.tree-item::before {
    content: '';
    position: absolute;
    left: 0.5rem;
    top: 0;
    height: 100%;
    border-left: 1px solid var(--json-border);
}

.tree-item::after {
    content: '';
    position: absolute;
    left: 0.5rem;
    top: 0.75rem;
    width: 0.75rem;
    border-bottom: 1px solid var(--json-border);
}

.tree-item:last-child::before {
    height: 0.75rem;
}

.tree-key {
    display: inline-flex;
    align-items: center;
    padding: 0.25rem 0.5rem;
    margin: 0.25rem 0;
    border-radius: 4px;
    font-family: 'Monaco', 'Menlo', 'Consolas', monospace;
    font-size: 0.85rem;
    cursor: pointer;
    transition: var(--json-transition);
}

.tree-key:hover {
    background: rgba(var(--primary-rgb), 0.1);
}

.tree-key.collapsible::before {
    content: '▼';
    font-size: 0.7rem;
    margin-right: 0.5rem;
    transition: transform 0.2s;
}

.tree-key.collapsed::before {
    transform: rotate(-90deg);
}

.tree-key .key-name {
    color: var(--json-key);
    font-weight: 600;
}

.tree-key .key-separator {
    color: var(--json-text-muted);
    margin: 0 0.25rem;
}

.tree-key .key-value {
    color: var(--json-string);
}

.tree-key .key-value.number {
    color: var(--json-number);
}

.tree-key .key-value.boolean {
    color: var(--json-boolean);
}

.tree-key .key-value.null {
    color: var(--json-null);
}

.tree-key .key-type {
    font-size: 0.7rem;
    padding: 0.1rem 0.4rem;
    margin-left: 0.5rem;
    border-radius: 3px;
    background: rgba(var(--primary-rgb), 0.1);
    color: var(--json-primary);
}

/* ===== Path Finder ===== */
.search-section {
    background: var(--json-surface);
    border-radius: var(--json-radius);
    border: 1px solid var(--json-border);
    padding: 1.5rem;
}

.search-input-group {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.search-input {
    flex: 1;
    padding: 0.75rem 1rem;
    border: 2px solid var(--json-border);
    border-radius: var(--json-radius);
    background: var(--json-bg);
    color: var(--json-text);
    font-size: 1rem;
}

.search-input:focus {
    outline: none;
    border-color: var(--json-primary);
}

.search-options {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
}

.checkbox-option {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
    font-size: 0.9rem;
    color: var(--json-text);
}

.checkbox-option input[type="checkbox"],
.checkbox-option input[type="radio"] {
    width: 18px;
    height: 18px;
    accent-color: var(--json-primary);
}

.path-results {
    background: var(--json-surface);
    border-radius: var(--json-radius);
    border: 1px solid var(--json-border);
    max-height: 400px;
    overflow: auto;
}

.path-result-item {
    display: flex;
    flex-direction: column;
    padding: 1rem;
    border-bottom: 1px solid var(--json-border);
    transition: var(--json-transition);
}

.path-result-item:hover {
    background: rgba(var(--primary-rgb), 0.05);
}

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

.result-path {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-family: 'Monaco', 'Menlo', 'Consolas', monospace;
    font-size: 0.85rem;
    color: var(--json-primary);
    margin-bottom: 0.5rem;
    cursor: pointer;
}

.result-path:hover {
    text-decoration: underline;
}

.result-value {
    font-family: 'Monaco', 'Menlo', 'Consolas', monospace;
    font-size: 0.85rem;
    color: var(--json-text);
    padding: 0.5rem;
    background: var(--json-bg);
    border-radius: 4px;
    word-break: break-all;
}

/* ===== Diff Panel ===== */
.diff-inputs,
.merge-inputs {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.diff-input-box,
.merge-input-box {
    display: flex;
    flex-direction: column;
}

.diff-input-box h4,
.merge-input-box h4 {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin: 0 0 0.75rem;
    font-size: 0.95rem;
    color: var(--json-text);
}

.diff-input-box textarea,
.merge-input-box textarea {
    flex: 1;
    min-height: 200px;
    padding: 1rem;
    border: 2px solid var(--json-border);
    border-radius: var(--json-radius);
    background: var(--json-surface);
    color: var(--json-text);
    font-family: 'Monaco', 'Menlo', 'Consolas', monospace;
    font-size: 0.85rem;
    resize: vertical;
}

.diff-input-box textarea:focus,
.merge-input-box textarea:focus {
    outline: none;
    border-color: var(--json-primary);
}

.diff-separator,
.merge-separator {
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--json-text-muted);
    font-size: 1.5rem;
}

.diff-result {
    background: var(--json-surface);
    border-radius: var(--json-radius);
    border: 1px solid var(--json-border);
    overflow: hidden;
}

.diff-summary {
    display: flex;
    gap: 1.5rem;
    padding: 1rem 1.5rem;
    background: rgba(var(--primary-rgb), 0.05);
    border-bottom: 1px solid var(--json-border);
    flex-wrap: wrap;
}

.diff-stat {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 600;
}

.diff-stat.added {
    color: var(--json-success);
}

.diff-stat.removed {
    color: var(--json-danger);
}

.diff-stat.modified {
    color: var(--json-warning);
}

.diff-details {
    padding: 1rem;
    max-height: 400px;
    overflow: auto;
}

.diff-item {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    padding: 0.75rem;
    border-radius: var(--json-radius);
    margin-bottom: 0.5rem;
    font-family: 'Monaco', 'Menlo', 'Consolas', monospace;
    font-size: 0.85rem;
}

.diff-item.added {
    background: rgba(39, 174, 96, 0.1);
    border-left: 3px solid var(--json-success);
}

.diff-item.removed {
    background: rgba(231, 76, 60, 0.1);
    border-left: 3px solid var(--json-danger);
}

.diff-item.modified {
    background: rgba(243, 156, 18, 0.1);
    border-left: 3px solid var(--json-warning);
}

.diff-item .diff-icon {
    flex-shrink: 0;
    width: 20px;
    text-align: center;
}

.diff-item .diff-path {
    color: var(--json-text-muted);
}

.diff-item .diff-value {
    color: var(--json-text);
}

/* ===== Convert Panel ===== */
.convert-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.convert-option {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    padding: 1.5rem 1rem;
    background: var(--json-surface);
    border-radius: var(--json-radius);
    border: 2px solid var(--json-border);
    cursor: pointer;
    transition: var(--json-transition);
}

.convert-option:hover {
    border-color: var(--json-primary);
    background: rgba(var(--primary-rgb), 0.05);
}

.convert-option.active {
    border-color: var(--json-primary);
    background: rgba(var(--primary-rgb), 0.1);
}

.convert-option i {
    font-size: 1.75rem;
    color: var(--json-primary);
}

.convert-option span {
    font-weight: 600;
    color: var(--json-text);
}

.convert-options-panel {
    background: var(--json-surface);
    border-radius: var(--json-radius);
    border: 1px solid var(--json-border);
    padding: 1.5rem;
    margin-bottom: 1.5rem;
}

.convert-options h4 {
    margin: 0 0 1rem;
    font-size: 1rem;
    color: var(--json-text);
}

.options-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    align-items: center;
}

.options-grid label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--json-text);
}

.options-grid select,
.options-grid input[type="text"] {
    padding: 0.5rem 0.75rem;
    border: 1px solid var(--json-border);
    border-radius: var(--json-radius);
    background: var(--json-bg);
    color: var(--json-text);
}

/* ===== Transform Panel ===== */
.transform-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    margin-bottom: 1.5rem;
}

.transform-card {
    background: var(--json-surface);
    border-radius: var(--json-radius);
    border: 1px solid var(--json-border);
    padding: 1.5rem;
}

.transform-card h4 {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin: 0 0 0.5rem;
    font-size: 1rem;
    color: var(--json-text);
}

.transform-card p {
    margin: 0 0 1rem;
    font-size: 0.85rem;
    color: var(--json-text-muted);
}

.transform-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.filter-input-group {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 0.75rem;
}

.filter-input-group input {
    flex: 1;
    padding: 0.5rem 0.75rem;
    border: 1px solid var(--json-border);
    border-radius: var(--json-radius);
    background: var(--json-bg);
    color: var(--json-text);
}

/* ===== Merge Panel ===== */
.merge-options {
    background: var(--json-surface);
    border-radius: var(--json-radius);
    border: 1px solid var(--json-border);
    padding: 1.5rem;
    margin-bottom: 1.5rem;
}

.merge-options h4 {
    margin: 0 0 1rem;
    font-size: 1rem;
    color: var(--json-text);
}

.radio-option {
    display: flex;
    flex-direction: column;
    padding: 1rem;
    background: var(--json-bg);
    border-radius: var(--json-radius);
    border: 2px solid var(--json-border);
    cursor: pointer;
    transition: var(--json-transition);
}

.radio-option:has(input:checked) {
    border-color: var(--json-primary);
    background: rgba(var(--primary-rgb), 0.05);
}

.radio-option input {
    margin-bottom: 0.5rem;
}

.radio-option span {
    font-weight: 600;
    color: var(--json-text);
}

.radio-option small {
    font-size: 0.8rem;
    color: var(--json-text-muted);
}

/* ===== History Panel ===== */
.history-list {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.history-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem;
    background: var(--json-surface);
    border-radius: var(--json-radius);
    border: 1px solid var(--json-border);
    transition: var(--json-transition);
}

.history-item:hover {
    border-color: var(--json-primary);
    background: rgba(var(--primary-rgb), 0.03);
}

.history-content {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    flex: 1;
    overflow: hidden;
}

.history-preview {
    font-family: 'Monaco', 'Menlo', 'Consolas', monospace;
    font-size: 0.85rem;
    color: var(--json-text);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.history-meta {
    display: flex;
    gap: 1rem;
    font-size: 0.8rem;
    color: var(--json-text-muted);
}

.history-actions {
    display: flex;
    gap: 0.5rem;
}

/* ===== Modals ===== */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10000;
    padding: 1rem;
}

.modal-content {
    background: var(--json-bg);
    border-radius: var(--json-radius-lg);
    max-width: 500px;
    width: 100%;
    max-height: 90vh;
    overflow: auto;
}

.modal-content.modal-lg {
    max-width: 700px;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid var(--json-border);
}

.modal-header h3 {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin: 0;
    font-size: 1.25rem;
    color: var(--json-text);
}

.modal-close {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: none;
    background: transparent;
    color: var(--json-text-muted);
    font-size: 1.5rem;
    cursor: pointer;
    border-radius: 50%;
    transition: var(--json-transition);
}

.modal-close:hover {
    background: rgba(231, 76, 60, 0.1);
    color: var(--json-danger);
}

.modal-body {
    padding: 1.5rem;
}

.modal-footer {
    padding: 1rem 1.5rem;
    border-top: 1px solid var(--json-border);
    display: flex;
    justify-content: flex-end;
    gap: 0.75rem;
}

.settings-section {
    margin-bottom: 1.5rem;
}

.settings-section:last-child {
    margin-bottom: 0;
}

.settings-section h4 {
    margin: 0 0 1rem;
    font-size: 1rem;
    color: var(--json-text);
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--json-border);
}

.settings-section .checkbox-option {
    margin-bottom: 0.75rem;
}

.settings-section label {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 0.75rem;
    color: var(--json-text);
}

.select-control,
.number-input {
    padding: 0.5rem 0.75rem;
    border: 1px solid var(--json-border);
    border-radius: var(--json-radius);
    background: var(--json-surface);
    color: var(--json-text);
}

.number-input {
    width: 80px;
}

/* ===== Help Section ===== */
.help-section {
    margin-bottom: 1.5rem;
}

.help-section:last-child {
    margin-bottom: 0;
}

.help-section h4 {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin: 0 0 1rem;
    font-size: 1rem;
    color: var(--json-text);
}

.shortcuts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 0.75rem;
}

.shortcut {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem;
    background: var(--json-surface);
    border-radius: var(--json-radius);
    border: 1px solid var(--json-border);
}

.shortcut kbd {
    padding: 0.25rem 0.5rem;
    background: var(--json-bg);
    border: 1px solid var(--json-border);
    border-radius: 4px;
    font-family: inherit;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--json-text);
}

.shortcut span {
    font-size: 0.85rem;
    color: var(--json-text-muted);
}

.tips-list {
    margin: 0;
    padding-left: 1.25rem;
}

.tips-list li {
    margin-bottom: 0.5rem;
    color: var(--json-text);
    font-size: 0.9rem;
}

/* ===== Responsive Styles ===== */
@media (max-width: 992px) {
    .json-tools-container {
        padding: 1rem;
    }

    .json-header {
        padding: 1rem;
    }

    .json-header .header-icon {
        width: 50px;
        height: 50px;
        font-size: 1.5rem;
    }

    .json-header h2 {
        font-size: 1.25rem;
    }

    .tool-tabs {
        padding: 0.25rem;
    }

    .tool-tab {
        padding: 0.6rem 1rem;
        font-size: 0.9rem;
    }

    .tool-tab span {
        display: none;
    }

    .tool-panel {
        padding: 1rem;
    }

    .diff-inputs,
    .merge-inputs {
        grid-template-columns: 1fr;
    }

    .diff-separator,
    .merge-separator {
        transform: rotate(90deg);
        padding: 0.5rem 0;
    }
}

@media (max-width: 768px) {
    .input-header {
        flex-direction: column;
        align-items: flex-start;
    }

    .input-actions {
        width: 100%;
        justify-content: flex-start;
    }

    .line-numbers {
        display: none;
    }

    #json-input {
        min-height: 200px;
    }

    .panel-header {
        flex-direction: column;
        align-items: flex-start;
    }

    .convert-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .transform-grid {
        grid-template-columns: 1fr;
    }

    .info-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .shortcuts-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 576px) {
    .header-actions {
        width: 100%;
        justify-content: flex-end;
    }

    .json-tools-container .btn-icon {
        width: 38px;
        height: 38px;
    }

    .convert-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .info-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .action-buttons {
        flex-direction: column;
    }

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

    .search-input-group {
        flex-direction: column;
    }

    .search-options {
        flex-direction: column;
        gap: 0.5rem;
    }

    .options-grid {
        flex-direction: column;
        align-items: flex-start;
    }
}

/* ===== Syntax Highlighted JSON ===== */
.json-highlighted .json-key {
    color: var(--json-key);
}

.json-highlighted .json-string {
    color: var(--json-string);
}

.json-highlighted .json-number {
    color: var(--json-number);
}

.json-highlighted .json-boolean {
    color: var(--json-boolean);
}

.json-highlighted .json-null {
    color: var(--json-null);
}

.json-highlighted .json-bracket {
    color: var(--json-bracket);
}

/* ===== Toast Notifications ===== */
.toast-container {
    position: fixed;
    bottom: 20px;
    right: 20px;
    z-index: 10001;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.toast {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem 1.25rem;
    background: var(--json-bg);
    border-radius: var(--json-radius);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
    border-left: 4px solid var(--json-primary);
    animation: slideIn 0.3s ease;
}

.toast.success {
    border-left-color: var(--json-success);
}

.toast.error {
    border-left-color: var(--json-danger);
}

.toast.warning {
    border-left-color: var(--json-warning);
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateX(100%);
    }

    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.toast i {
    font-size: 1.25rem;
}

.toast.success i {
    color: var(--json-success);
}

.toast.error i {
    color: var(--json-danger);
}

.toast.warning i {
    color: var(--json-warning);
}

.toast-message {
    color: var(--json-text);
    font-size: 0.9rem;
}

/* ===== Loading Spinner ===== */
.loading-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(var(--json-bg-rgb, 255, 255, 255), 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 100;
}

.dark-theme .loading-overlay {
    background: rgba(26, 29, 36, 0.8);
}

.spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--json-border);
    border-top-color: var(--json-primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

/* ===== Copy Highlight ===== */
.copy-highlight {
    animation: copyPulse 0.3s ease;
}

@keyframes copyPulse {
    0% {
        background: rgba(39, 174, 96, 0.2);
    }

    100% {
        background: transparent;
    }
}

/* ===== Drag and Drop ===== */
.json-input-section.dragover {
    border-color: var(--json-primary);
    background: rgba(var(--primary-rgb), 0.05);
}

.json-input-section.dragover::after {
    content: 'Drop JSON file here';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--json-primary);
    pointer-events: none;
}