/* Copyright (c) Meta Platforms, Inc. and affiliates*/

/* ===== CSS Variables - Unified Theme ===== */
:root {
    --primary-color: #667eea;
    --primary-hover: #5568d3;
    --primary-light: #E7F3FF;
    --secondary-color: #764ba2;
    --meta-blue: #667eea;
    --meta-blue-hover: #5568d3;
    --meta-blue-light: #E7F3FF;
    --meta-dark: #1C2B33;
    --meta-gray-50: #F0F2F5;
    --meta-gray-100: #E4E6EB;
    --meta-gray-200: #CED0D4;
    --meta-gray-300: #8A8D91;
    --meta-text: #050505;
    --meta-text-secondary: #65676B;
    --meta-bg: #FFFFFF;
    --meta-border: #E4E6EB;
    --meta-success: #42B72A;
    --meta-danger: #E41E3F;
    --meta-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    --meta-shadow-lg: 0 8px 16px rgba(0, 0, 0, 0.1);
}

[data-theme="dark"] {
    --primary-color: #2E89FF;
    --primary-hover: #5BA4FF;
    --primary-light: #263951;
    --meta-blue: #2E89FF;
    --meta-blue-hover: #5BA4FF;
    --meta-blue-light: #263951;
    --meta-dark: #18191A;
    --meta-gray-50: #242526;
    --meta-gray-100: #3A3B3C;
    --meta-gray-200: #4E4F50;
    --meta-gray-300: #B0B3B8;
    --meta-text: #E4E6EB;
    --meta-text-secondary: #B0B3B8;
    --meta-bg: #242526;
    --meta-border: #3A3B3C;
    --meta-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
    --meta-shadow-lg: 0 8px 16px rgba(0, 0, 0, 0.4);
}

/* ===== Base Styles ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    min-height: 100vh;
    padding: 20px;
    color: var(--meta-text);
    line-height: 1.5;
    transition: background 0.3s ease, color 0.3s ease;
}

.container {
    max-width: 1600px;
    margin: 0 auto;
    background: var(--meta-bg);
    border-radius: 12px;
    box-shadow: var(--meta-shadow-lg);
    overflow: hidden;
    transition: background 0.3s ease;
}

/* ===== Header Styles ===== */
header {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: white;
    padding: 40px;
    position: relative;
}

.header-top {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 20px;
    margin-bottom: 12px;
    position: relative;
}

.header-top h1 {
    font-size: 32px;
    font-weight: 700;
    letter-spacing: -0.5px;
    margin: 0;
}

.subtitle {
    font-size: 16px;
    opacity: 0.95;
    font-weight: 400;
    max-width: 600px;
    margin: 0 auto;
    text-align: center;
}

/* ===== Tab Navigation ===== */
.tab-navigation {
    display: flex;
    gap: 10px;
    margin-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.2);
    padding-top: 20px;
}

.tab-button {
    background: rgba(255, 255, 255, 0.1);
    color: white;
    border: 2px solid rgba(255, 255, 255, 0.2);
    padding: 12px 24px;
    border-radius: 8px;
    cursor: pointer;
    font-size: 1em;
    font-weight: 500;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 8px;
}

.tab-button:hover {
    background: rgba(255, 255, 255, 0.2);
    border-color: rgba(255, 255, 255, 0.4);
    transform: translateY(-2px);
}

.tab-button.active {
    background: white;
    color: var(--primary-color);
    border-color: white;
}

.tab-button svg {
    width: 20px;
    height: 20px;
}

/* ===== Tab Content ===== */
.tab-content {
    display: none;
    animation: fadeIn 0.3s ease;
}

.tab-content.active {
    display: block;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ===== Form Styles ===== */
form {
    padding: 32px;
}

.form-section {
    background: var(--meta-gray-50);
    border-radius: 8px;
    padding: 28px;
    margin-bottom: 28px;
    border: 1px solid var(--meta-border);
    transition: all 0.3s ease;
}

.form-section h2 {
    color: var(--meta-text);
    font-size: 20px;
    margin-bottom: 20px;
    padding-bottom: 12px;
    border-bottom: 2px solid var(--primary-color);
    font-weight: 700;
}

.section-description {
    color: var(--meta-text-secondary);
    font-size: 14px;
    margin-bottom: 20px;
    line-height: 1.6;
}

/* Subsections */
.subsection {
    margin-top: 24px;
    padding: 20px;
    background: var(--meta-bg);
    border-radius: 6px;
    border: 1px solid var(--meta-border);
}

.subsection h3 {
    color: var(--meta-text);
    font-size: 16px;
    margin-bottom: 16px;
    font-weight: 600;
}

.subsection-description {
    color: var(--meta-text-secondary);
    font-size: 13px;
    margin-bottom: 16px;
    font-style: italic;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    color: var(--meta-text);
    font-weight: 600;
    font-size: 14px;
}

.form-group input[type="text"],
.form-group input[type="url"],
.form-group input[type="date"],
.form-group input[type="email"],
.form-group input[type="number"],
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 10px 14px;
    border: 1px solid var(--meta-border);
    border-radius: 6px;
    font-size: 14px;
    background: var(--meta-bg);
    color: var(--meta-text);
    transition: all 0.2s ease;
    font-family: inherit;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--meta-blue);
    box-shadow: 0 0 0 3px var(--meta-blue-light);
}

.form-group textarea {
    min-height: 120px;
    resize: vertical;
    font-family: inherit;
    line-height: 1.6;
}

.form-group small {
    display: block;
    margin-top: 6px;
    color: var(--meta-text-secondary);
    font-size: 13px;
}

/* Checkbox and Radio Groups */
.checkbox-group,
.radio-group {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.checkbox-group label,
.radio-group label {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 400;
    cursor: pointer;
}

.checkbox-group input[type="checkbox"],
.radio-group input[type="radio"] {
    width: 18px;
    height: 18px;
    cursor: pointer;
}

/* Select Styling */
select {
    background-image: url("data:image/svg+xml,%3Csvg width='12' height='8' viewBox='0 0 12 8' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1L6 6L11 1' stroke='%238A8D91' stroke-width='2' stroke-linecap='round'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    padding-right: 36px;
    appearance: none;
    cursor: pointer;
}

select[multiple] {
    min-height: 140px;
    padding: 8px;
    background-image: none;
}

select[multiple] option {
    padding: 8px 12px;
    border-radius: 4px;
    margin-bottom: 2px;
    cursor: pointer;
    color: var(--meta-text);
}

select[multiple] option:hover {
    background: var(--meta-blue-light);
}

select[multiple] option:checked {
    background: var(--meta-blue);
    color: white;
    font-weight: 600;
}

select optgroup {
    font-weight: 600;
    font-style: normal;
    color: var(--meta-text);
    padding: 8px 0 4px 0;
}

select:not([multiple]) option {
    color: var(--meta-text);
    padding: 8px 12px;
}

select optgroup option {
    color: var(--meta-text);
    font-weight: 400;
    padding-left: 12px;
}

/* Multi-select controls */
.select-with-controls {
    display: flex;
    gap: 12px;
    align-items: flex-start;
}

.select-with-controls select {
    flex: 1;
}

.clear-btn {
    padding: 10px 18px;
    background: var(--meta-bg);
    color: var(--meta-danger);
    border: 1px solid var(--meta-border);
    border-radius: 6px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    white-space: nowrap;
    transition: all 0.2s ease;
    align-self: flex-start;
}

.clear-btn:hover {
    background: var(--meta-danger);
    color: white;
    border-color: var(--meta-danger);
}

/* Custom option input */
.custom-option {
    margin-top: 10px;
}

.custom-option input {
    width: 100%;
    padding: 10px 14px;
    border: 2px dashed var(--meta-border);
    border-radius: 6px;
    font-size: 14px;
    font-family: inherit;
    background: var(--meta-bg);
    color: var(--meta-text-secondary);
    transition: all 0.2s ease;
    font-style: italic;
}

.custom-option input:focus {
    outline: none;
    border-color: var(--meta-blue);
    border-style: solid;
    color: var(--meta-text);
    font-style: normal;
    background: var(--meta-blue-light);
}

/* ===== Buttons ===== */
.button-group {
    display: flex;
    gap: 12px;
    margin-top: 24px;
    flex-wrap: wrap;
}

.btn {
    padding: 12px 24px;
    border: none;
    border-radius: 6px;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    flex: 1;
    min-width: 160px;
    font-family: inherit;
}

.btn-primary,
button[type="submit"],
.primary-button {
    background: var(--meta-blue);
    color: white;
}

.btn-primary:hover,
button[type="submit"]:hover,
.primary-button:hover {
    background: var(--meta-blue-hover);
    transform: translateY(-1px);
    box-shadow: var(--meta-shadow);
}

.btn-primary:active {
    transform: translateY(0);
}

.btn-secondary {
    background: var(--meta-bg);
    color: var(--meta-text);
    border: 1px solid var(--meta-border);
}

.btn-secondary:hover {
    background: var(--meta-gray-50);
    border-color: var(--meta-gray-200);
}

.btn-success {
    background: var(--meta-success);
    color: white;
}

.btn-success:hover {
    background: #369c1c;
}

/* ===== Validity Section ===== */
.validity-section {
    margin-top: 28px;
    padding: 24px;
    background: var(--meta-bg);
    border-radius: 8px;
    border: 1px solid var(--meta-border);
}

.validity-section h3 {
    color: var(--meta-text);
    margin-bottom: 16px;
    font-size: 18px;
    font-weight: 600;
}

.validity-category {
    margin-bottom: 20px;
}

.validity-category h4 {
    color: var(--meta-text-secondary);
    font-size: 14px;
    margin-bottom: 10px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.validity-category ul {
    list-style: none;
    padding: 0;
}

.validity-category li {
    padding: 8px 12px;
    margin-bottom: 6px;
    background: var(--meta-gray-50);
    border-radius: 4px;
    font-size: 14px;
    color: var(--meta-text);
    line-height: 1.6;
}

.validity-actions {
    display: flex;
    gap: 12px;
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px solid var(--meta-border);
}

.validity-actions .btn {
    flex: 0 1 auto;
    min-width: 140px;
}

/* ===== Output Section ===== */
.output-section {
    margin-top: 32px;
    padding: 28px;
    background: var(--meta-gray-50);
    border-radius: 8px;
    border: 2px solid var(--meta-success);
}

.output-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    flex-wrap: wrap;
    gap: 16px;
}

.output-section h2 {
    color: var(--meta-text);
    margin: 0;
    font-size: 20px;
    font-weight: 700;
}

/* Format Toggle */
.format-toggle {
    display: flex;
    gap: 0;
    background: var(--meta-bg);
    border-radius: 6px;
    padding: 3px;
    border: 1px solid var(--meta-border);
}

.format-btn {
    padding: 8px 20px;
    border: none;
    background: transparent;
    color: var(--meta-text-secondary);
    cursor: pointer;
    border-radius: 4px;
    font-weight: 600;
    font-size: 14px;
    transition: all 0.2s ease;
}

.format-btn:hover {
    color: var(--meta-text);
}

.format-btn.active {
    background: var(--meta-blue);
    color: white;
}

#output {
    background: var(--meta-dark);
    color: #E4E6EB;
    padding: 20px;
    border-radius: 6px;
    overflow-x: auto;
    font-family: 'SF Mono', 'Consolas', 'Monaco', 'Courier New', monospace;
    font-size: 13px;
    line-height: 1.6;
    max-height: 600px;
    overflow-y: auto;
    border: 1px solid var(--meta-border);
}

/* ===== Success Animation ===== */
@keyframes successPulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.03); }
    100% { transform: scale(1); }
}

.success {
    animation: successPulse 0.3s ease;
    background: var(--meta-success) !important;
    color: white !important;
}

/* ===== Explorer Styles ===== */
.search-section {
    padding: 30px;
    background: #f8f9fa;
    border-bottom: 1px solid #dee2e6;
}

[data-theme="dark"] .search-section {
    background: var(--meta-gray-50);
    border-bottom-color: var(--meta-border);
}

.search-bar {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
}

#searchInput {
    flex: 1;
    padding: 12px 20px;
    font-size: 16px;
    border: 2px solid #dee2e6;
    border-radius: 8px;
    outline: none;
    transition: border-color 0.3s;
    background: var(--meta-bg);
    color: var(--meta-text);
}

[data-theme="dark"] #searchInput {
    border-color: var(--meta-border);
}

#searchInput:focus {
    border-color: var(--primary-color);
}

#clearSearch {
    padding: 12px 24px;
    background: #6c757d;
    color: white;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-size: 16px;
    transition: background 0.3s;
}

#clearSearch:hover {
    background: #5a6268;
}

/* ===== Filters ===== */
.filters {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 15px;
    margin-bottom: 20px;
}

.filter-group {
    display: flex;
    flex-direction: column;
    gap: 5px;
}

.filter-group label {
    font-weight: 600;
    color: #495057;
    font-size: 14px;
}

[data-theme="dark"] .filter-group label {
    color: var(--meta-text);
}

.filter-group select {
    padding: 10px;
    border: 2px solid #dee2e6;
    border-radius: 8px;
    font-size: 14px;
    outline: none;
    cursor: pointer;
    transition: border-color 0.3s;
    background: var(--meta-bg);
    color: var(--meta-text);
}

[data-theme="dark"] .filter-group select {
    border-color: var(--meta-border);
}

.filter-group select:focus {
    border-color: var(--primary-color);
}

/* ===== Column Toggle Section ===== */
.column-toggle-section {
    margin-bottom: 20px;
    padding: 0 30px;
}

.toggle-btn, .export-btn {
    padding: 10px 20px;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-size: 14px;
    transition: background 0.3s;
    font-weight: 600;
}

.toggle-btn:hover, .export-btn:hover {
    background: var(--primary-hover);
}

.export-btn {
    background: #28a745;
    margin-left: 10px;
}

.export-btn:hover {
    background: #218838;
}

.column-toggles {
    margin-top: 15px;
    padding: 20px;
    background: white;
    border: 2px solid #dee2e6;
    border-radius: 8px;
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 10px;
}

[data-theme="dark"] .column-toggles {
    background: var(--meta-gray-100);
    border-color: var(--meta-border);
}

.column-toggles.hidden {
    display: none;
}

.column-toggles label {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    padding: 5px;
    border-radius: 4px;
    transition: background 0.2s;
    color: var(--meta-text);
}

.column-toggles label:hover {
    background: #f8f9fa;
}

[data-theme="dark"] .column-toggles label:hover {
    background: var(--meta-gray-200);
}

.column-toggles input[type="checkbox"] {
    cursor: pointer;
    width: 18px;
    height: 18px;
}

/* ===== Stats ===== */
.stats {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-weight: 600;
    color: #495057;
    font-size: 14px;
    padding: 0 30px 20px 30px;
}

[data-theme="dark"] .stats {
    color: var(--meta-text);
}

/* ===== Table Container ===== */
.table-container {
    overflow-x: auto;
    padding: 0 30px 30px 30px;
}

table {
    width: 100%;
    border-collapse: collapse;
    font-size: 14px;
}

thead {
    background: #f8f9fa;
    position: sticky;
    top: 0;
    z-index: 10;
}

[data-theme="dark"] thead {
    background: var(--meta-gray-100);
}

th {
    padding: 12px 10px;
    text-align: left;
    font-weight: 600;
    color: #495057;
    border-bottom: 2px solid #dee2e6;
    cursor: pointer;
    user-select: none;
    white-space: nowrap;
}

[data-theme="dark"] th {
    color: var(--meta-text);
    border-bottom-color: var(--meta-border);
}

th.hidden {
    display: none;
}

th:hover {
    background: #e9ecef;
}

[data-theme="dark"] th:hover {
    background: var(--meta-gray-200);
}

th.actions-col {
    cursor: default;
}

th.actions-col:hover {
    background: #f8f9fa;
}

[data-theme="dark"] th.actions-col:hover {
    background: var(--meta-gray-100);
}

.sort-icon {
    margin-left: 5px;
    opacity: 0.5;
    font-size: 12px;
}

th.sorted-asc .sort-icon,
th.sorted-desc .sort-icon {
    opacity: 1;
}

th.sorted-asc .sort-icon::before {
    content: '↑';
}

th.sorted-desc .sort-icon::before {
    content: '↓';
}

tbody tr {
    border-bottom: 1px solid #dee2e6;
    transition: background 0.2s;
}

[data-theme="dark"] tbody tr {
    border-bottom-color: var(--meta-border);
}

tbody tr:hover {
    background: #f8f9fa;
}

[data-theme="dark"] tbody tr:hover {
    background: var(--meta-gray-50);
}

td {
    padding: 12px 10px;
    color: #212529;
    max-width: 300px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

[data-theme="dark"] td {
    color: var(--meta-text);
}

td.hidden {
    display: none;
}

.cell-title {
    font-weight: 600;
    color: var(--primary-color);
    max-width: 250px;
}

.cell-short {
    max-width: 150px;
}

.cell-medium {
    max-width: 200px;
}

.cell-long {
    max-width: 300px;
}

/* ===== Badges ===== */
.badge {
    display: inline-block;
    padding: 4px 10px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 600;
    white-space: nowrap;
}

.badge-valid {
    background: #d4edda;
    color: #155724;
}

.badge-invalid {
    background: #f8d7da;
    color: #721c24;
}

.badge-unknown {
    background: #e2e3e5;
    color: #383d41;
}

/* ===== Table Buttons ===== */
.btn-view {
    padding: 8px 16px;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-size: 13px;
    transition: background 0.3s;
    white-space: nowrap;
}

.btn-view:hover {
    background: var(--primary-hover);
}

.btn-link {
    padding: 8px 16px;
    background: #28a745;
    color: white;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-size: 13px;
    margin-left: 5px;
    text-decoration: none;
    display: inline-block;
    transition: background 0.3s;
    white-space: nowrap;
}

.btn-link:hover {
    background: #218838;
}

/* ===== Modal Styles ===== */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: rgba(0,0,0,0.5);
}

.modal-content {
    background-color: var(--meta-bg);
    margin: 3% auto;
    padding: 30px;
    border-radius: 12px;
    width: 90%;
    max-width: 1000px;
    max-height: 85vh;
    overflow-y: auto;
    box-shadow: 0 10px 40px rgba(0,0,0,0.3);
}

.close {
    color: #aaa;
    float: right;
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
    transition: color 0.3s;
}

.close:hover,
.close:focus {
    color: var(--meta-text);
}

.detail-section {
    margin-bottom: 25px;
}

.detail-section h3 {
    color: var(--primary-color);
    margin-bottom: 10px;
    font-size: 1.3em;
    border-bottom: 2px solid var(--primary-color);
    padding-bottom: 5px;
}

.detail-section p {
    color: var(--meta-text-secondary);
    line-height: 1.6;
    margin: 8px 0;
}

.detail-section strong {
    color: var(--meta-text);
}

.detail-links {
    display: flex;
    gap: 10px;
    margin-top: 10px;
    flex-wrap: wrap;
}

/* ===== Dark Mode Toggle ===== */
.theme-toggle {
    position: fixed;
    bottom: 20px;
    right: 20px;
    background: var(--meta-bg);
    border: 2px solid var(--meta-border);
    border-radius: 50%;
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: var(--meta-shadow-lg);
    transition: all 0.3s ease;
    font-size: 24px;
    z-index: 100;
}

.theme-toggle:hover {
    transform: scale(1.1);
}

/* ===== Scrollbar Styling ===== */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--meta-gray-50);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb {
    background: var(--meta-gray-200);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--meta-gray-300);
}

#csvGithubHelper {
    background: var(--meta-blue-light);
    border: 2px solid var(--meta-blue);
    border-radius: 8px;
    padding: 24px 20px;
    margin-top: 32px;
    box-shadow: var(--meta-shadow);
    color: var(--meta-text);
    transition: background 0.3s, border 0.3s;
}

#csvGithubHelper h3 {
    margin-top: 0;
    margin-bottom: 16px;
    font-size: 20px;
    font-weight: 700;
    color: var(--meta-blue);
    letter-spacing: -0.5px;
}

#csvGithubHelper ol {
    margin-left: 18px;
    margin-bottom: 0;
    padding-left: 0;
}

#csvGithubHelper li {
    margin-bottom: 18px;
    font-size: 15px;
    line-height: 1.6;
}

#csvCopyBox {
    width: 100%;
    font-family: 'SF Mono', 'Consolas', 'Monaco', 'Courier New', monospace;
    font-size: 15px;
    background: var(--meta-bg);
    color: var(--meta-text);
    border: 1.5px solid var(--meta-blue);
    border-radius: 6px;
    padding: 10px 12px;
    margin-top: 8px;
    margin-bottom: 8px;
    resize: none;
    box-shadow: 0 1px 2px rgba(0,0,0,0.04);
    transition: border 0.2s, background 0.2s;
}

#csvCopyBox:focus {
    border-color: var(--meta-success);
    background: var(--meta-blue-light);
}

#copyCsvBtn {
    margin-top: 8px;
    margin-right: 8px;
    background: var(--meta-blue);
    color: white;
    border: none;
    border-radius: 6px;
    padding: 10px 18px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.2s;
}

#copyCsvBtn:hover {
    background: var(--meta-blue-hover);
}

#githubPRBtn {
    background: var(--meta-success);
    color: white;
    border: none;
    border-radius: 6px;
    padding: 10px 18px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.2s;
    margin-top: 8px;
}

#githubPRBtn:hover {
    background: #369c1c;
}

#csvGithubHelper code {
    background: var(--meta-gray-100);
    color: var(--meta-blue);
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 14px;
}

/* ===== Responsive Design ===== */
@media (max-width: 768px) {
    body {
        padding: 12px;
    }
    
    .container {
        border-radius: 8px;
    }
    
    header {
        padding: 24px 20px;
    }
    
    .header-top h1 {
        font-size: 24px;
    }
    
    .subtitle {
        font-size: 14px;
    }
    
    .tab-navigation {
        flex-direction: column;
    }
    
    form {
        padding: 20px;
    }
    
    .form-section {
        padding: 20px;
    }
    
    .filters {
        grid-template-columns: 1fr;
    }
    
    .column-toggles {
        grid-template-columns: 1fr;
    }
    
    table {
        font-size: 12px;
    }
    
    th, td {
        padding: 8px 6px;
    }
    
    .stats {
        flex-direction: column;
        gap: 10px;
        align-items: flex-start;
    }
    
    .button-group {
        flex-direction: column;
    }
    
    .btn {
        min-width: 100%;
    }
}