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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: #1a1d29;
    color: #e2e8f0;
    font-size: 14px;
    line-height: 1.6;
    overflow: hidden;
    font-weight: 400;
}

/* App Container */
.app-container {
    display: flex;
    flex-direction: column;
    height: 100vh;
    background: linear-gradient(135deg, #1a1d29 0%, #252943 100%);
}

/* Header */
.header {
    background: rgba(37, 41, 67, 0.98);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid #475569;
    padding: 16px 24px;
    z-index: 100;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.app-title {
    font-size: 20px;
    font-weight: 700;
    color: #f1f5f9;
    position: relative;
}

.app-title::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 30px;
    height: 3px;
    background: linear-gradient(90deg, #7c3aed, #a855f7);
    border-radius: 2px;
}

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

/* URL Section */
.url-section {
    background: rgba(42, 47, 74, 0.8);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid #3a4063;
    padding: 20px;
}

.url-container {
    display: flex;
    align-items: flex-end;
    gap: 16px;
    max-width: 1200px;
    margin: 0 auto;
}

.input-group {
    flex: 1;
}

.input-label {
    display: block;
    margin-bottom: 6px;
    font-weight: 600;
    color: #f1f5f9;
    font-size: 13px;
    position: relative;
}

.input-label::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 20px;
    height: 2px;
    background: linear-gradient(90deg, #7c3aed, #a855f7);
    border-radius: 1px;
}

.url-input {
    width: 100%;
    padding: 14px 18px;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid #64748b;
    border-radius: 8px;
    color: #f1f5f9;
    font-size: 15px;
    font-weight: 500;
    transition: all 0.2s ease;
}

.url-input:focus {
    outline: none;
    border-color: #8b5cf6;
    background: rgba(255, 255, 255, 0.12);
    box-shadow: 0 0 0 3px rgba(139, 92, 246, 0.15);
}

.url-input::placeholder {
    color: #94a3b8;
    font-weight: 400;
}

.control-buttons {
    display: flex;
    gap: 8px;
}

.progress-container {
    margin-top: 16px;
    display: flex;
    align-items: center;
    gap: 12px;
}

.progress-bar {
    flex: 1;
    height: 4px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 2px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, #7c3aed, #a855f7);
    width: 0%;
    transition: width 0.3s ease;
}

.progress-text {
    font-size: 13px;
    color: #e2e8f0;
    min-width: 140px;
    font-weight: 500;
}

/* Buttons */
.btn {
    padding: 12px 24px;
    border: none;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    text-decoration: none;
    letter-spacing: 0.025em;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.btn-primary {
    background: linear-gradient(135deg, #7c3aed, #a855f7);
    color: #ffffff;
}

.btn-primary:hover:not(:disabled) {
    background: linear-gradient(135deg, #8b5cf6, #c084fc);
    transform: translateY(-1px);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.1);
    color: #ffffff;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.15);
}

.btn-success {
    background: linear-gradient(135deg, #10b981, #059669);
    color: #ffffff;
    border: 1px solid rgba(16, 185, 129, 0.3);
}

.btn-success:hover:not(:disabled) {
    background: linear-gradient(135deg, #059669, #047857);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(16, 185, 129, 0.4);
}

.btn-primary {
    background: linear-gradient(135deg, #3b82f6, #2563eb);
    color: #ffffff;
    border: 1px solid rgba(59, 130, 246, 0.3);
}

.btn-primary:hover:not(:disabled) {
    background: linear-gradient(135deg, #2563eb, #1d4ed8);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.4);
}

.btn-danger {
    background: #f44336;
    color: #ffffff;
}

.btn-danger:hover:not(:disabled) {
    background: #ef5350;
    transform: translateY(-1px);
}

/* Main Content */
.main-content {
    display: flex;
    flex: 1;
    overflow: hidden;
}

/* Sidebar */
.sidebar {
    width: 300px;
    background: rgba(32, 36, 58, 0.98);
    backdrop-filter: blur(10px);
    border-right: 1px solid #475569;
    overflow-y: auto;
    padding: 24px;
}

.sidebar-section {
    margin-bottom: 24px;
}

.sidebar-title {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 12px;
    color: #7c3aed;
}

/* Filter Tree */
.filter-tree {
    font-size: 13px;
}

.filter-group {
    margin-bottom: 16px;
}

.filter-header {
    font-weight: 700;
    color: #e2e8f0;
    margin-bottom: 10px;
    font-size: 13px;
    text-transform: uppercase;
    letter-spacing: 0.8px;
}

.filter-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px 12px;
    margin-bottom: 3px;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.2s ease;
    font-weight: 500;
    color: #cbd5e1;
}

.filter-item:hover {
    background: rgba(124, 58, 237, 0.1);
}

.filter-item.active {
    background: rgba(124, 58, 237, 0.2);
    color: #7c3aed;
}

.filter-subgroup .filter-item {
    padding-left: 20px;
    font-size: 12px;
}

.filter-count {
    background: rgba(255, 255, 255, 0.1);
    padding: 2px 6px;
    border-radius: 10px;
    font-size: 11px;
    min-width: 20px;
    text-align: center;
}

/* Statistics */
.stats-container {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.stat-item {
    display: flex;
    justify-content: space-between;
    padding: 10px 14px;
    background: rgba(255, 255, 255, 0.08);
    border-radius: 8px;
    font-size: 13px;
}

.stat-label {
    color: #cbd5e1;
    font-weight: 500;
}

.stat-value {
    font-weight: 700;
    color: #a78bfa;
}

/* Content Area */
.content-area {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

/* Tabs */
.tab-container {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.tab-header {
    display: flex;
    background: rgba(42, 47, 74, 0.8);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid #3a4063;
    padding: 0 20px;
}

.tab-btn {
    background: none;
    border: none;
    padding: 14px 24px;
    color: #94a3b8;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    border-bottom: 3px solid transparent;
    transition: all 0.2s ease;
    letter-spacing: 0.025em;
}

.tab-btn:hover {
    color: #e2e8f0;
    background: rgba(255, 255, 255, 0.08);
}

.tab-btn.active {
    color: #c4b5fd;
    border-bottom-color: #8b5cf6;
    background: rgba(139, 92, 246, 0.1);
}

.tab-content {
    flex: 1;
    overflow: hidden;
}

.tab-pane {
    height: 100%;
    display: none;
    overflow: hidden;
}

.tab-pane.active {
    display: flex;
    flex-direction: column;
}

/* Tables */
.table-container {
    flex: 1;
    overflow: auto;
    padding: 20px;
    position: relative;
    height: 700px;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    background: rgba(255, 255, 255, 0.02);
    border-radius: 8px;
    overflow: hidden;
    table-layout: fixed;
}

.data-table th {
    background: rgba(124, 58, 237, 0.12);
    padding: 14px 18px;
    text-align: left;
    font-weight: 700;
    font-size: 13px;
    color: #a78bfa;
    border-bottom: 1px solid #475569;
    text-transform: uppercase;
    letter-spacing: 0.8px;
    white-space: nowrap;
    position: relative;
    min-width: 80px;
    overflow: hidden;
    text-overflow: ellipsis;
}

.data-table td {
    padding: 14px 18px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    font-size: 14px;
    color: #e2e8f0;
    font-weight: 500;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.data-table tbody tr:hover {
    background: rgba(255, 255, 255, 0.08);
}

.data-table tbody tr:nth-child(even) {
    background: rgba(255, 255, 255, 0.02);
}

/* Status Bar */
.status-bar {
    background: rgba(37, 41, 67, 0.98);
    backdrop-filter: blur(10px);
    border-top: 1px solid #475569;
    padding: 12px 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 13px;
    color: #cbd5e1;
    font-weight: 500;
}

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

::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.05);
}

::-webkit-scrollbar-thumb {
    background: rgba(124, 58, 237, 0.5);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: rgba(124, 58, 237, 0.7);
}

/* Modal Styles */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(8px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

.modal-content {
    background: linear-gradient(135deg, #252943 0%, #1a1d29 100%);
    border: 1px solid #475569;
    border-radius: 12px;
    width: 90%;
    max-width: 800px;
    max-height: 90vh;
    overflow: hidden;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 24px;
    border-bottom: 1px solid #475569;
    background: rgba(124, 58, 237, 0.1);
}

.modal-header h2 {
    margin: 0;
    font-size: 20px;
    font-weight: 700;
    color: #c4b5fd;
}

.modal-close {
    background: none;
    border: none;
    font-size: 24px;
    color: #94a3b8;
    cursor: pointer;
    padding: 4px;
    border-radius: 4px;
    transition: all 0.2s ease;
}

.modal-close:hover {
    background: rgba(255, 255, 255, 0.1);
    color: #e2e8f0;
}

.modal-body {
    padding: 0;
    overflow-y: auto;
    max-height: calc(90vh - 140px);
}

.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: 12px;
    padding: 20px 24px;
    border-top: 1px solid #475569;
    background: rgba(37, 41, 67, 0.5);
}

/* Settings Tabs */
.settings-tabs {
    display: flex;
    background: rgba(42, 47, 74, 0.8);
    border-bottom: 1px solid #475569;
    overflow-x: auto;
}

.settings-tab-btn {
    background: none;
    border: none;
    padding: 16px 24px;
    color: #94a3b8;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    border-bottom: 3px solid transparent;
    transition: all 0.2s ease;
    white-space: nowrap;
}

.settings-tab-btn:hover {
    color: #e2e8f0;
    background: rgba(255, 255, 255, 0.05);
}

.settings-tab-btn.active {
    color: #c4b5fd;
    border-bottom-color: #8b5cf6;
    background: rgba(139, 92, 246, 0.1);
}

.settings-tab-content {
    display: none;
    padding: 24px;
}

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

.settings-tab-content h3 {
    margin: 0 0 20px 0;
    font-size: 18px;
    font-weight: 700;
    color: #e2e8f0;
    border-bottom: 1px solid #475569;
    padding-bottom: 8px;
}

/* Setting Groups */
.setting-group {
    margin-bottom: 20px;
}

.setting-group label {
    display: block;
    margin-bottom: 6px;
    font-weight: 600;
    color: #e2e8f0;
    font-size: 14px;
}

.setting-group input[type="text"],
.setting-group input[type="number"],
.setting-group select,
.setting-group textarea {
    width: 100%;
    padding: 10px 14px;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid #64748b;
    border-radius: 6px;
    color: #f1f5f9;
    font-size: 14px;
    font-weight: 500;
    transition: all 0.2s ease;
}

.setting-group input[type="text"]:focus,
.setting-group input[type="number"]:focus,
.setting-group select:focus,
.setting-group textarea:focus {
    outline: none;
    border-color: #8b5cf6;
    background: rgba(255, 255, 255, 0.12);
    box-shadow: 0 0 0 3px rgba(139, 92, 246, 0.1);
}

.setting-group textarea {
    resize: vertical;
    min-height: 80px;
    font-family: 'Consolas', 'SF Mono', Monaco, monospace;
    font-size: 13px;
}

.setting-help {
    display: block;
    margin-top: 4px;
    font-size: 12px;
    color: #94a3b8;
    font-weight: 400;
    line-height: 1.4;
}

/* Checkbox Styles */
.checkbox-label {
    display: flex !important;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    font-weight: 500 !important;
    margin-bottom: 8px !important;
}

.checkbox-label input[type="checkbox"] {
    width: auto !important;
    margin: 0 !important;
    accent-color: #8b5cf6;
}

.checkbox-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 8px;
    margin-top: 8px;
}

.checkbox-grid .checkbox-label {
    margin-bottom: 4px !important;
}

/* Select Dropdown */
.setting-group select {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3e%3cpath stroke='%2394a3b8' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='M6 8l4 4 4-4'/%3e%3c/svg%3e");
    background-position: right 10px center;
    background-repeat: no-repeat;
    background-size: 16px;
    padding-right: 40px;
    cursor: pointer;
}

/* Empty State */
.empty-state {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 300px;
    text-align: center;
}

.empty-state-content {
    max-width: 300px;
}

.empty-state svg {
    color: #64748b;
    margin-bottom: 16px;
}

.empty-state h3 {
    margin: 0 0 8px 0;
    font-size: 18px;
    font-weight: 600;
    color: #e2e8f0;
}

.empty-state p {
    margin: 0;
    font-size: 14px;
    color: #94a3b8;
    line-height: 1.5;
}

/* Control buttons spacing */
.control-buttons {
    display: flex;
    gap: 12px;
}

/* Responsive */
@media (max-width: 768px) {
    .sidebar {
        width: 240px;
    }

    .url-container {
        flex-direction: column;
        align-items: stretch;
        gap: 12px;
    }

    .control-buttons {
        justify-content: stretch;
        flex-wrap: wrap;
    }

    .control-buttons .btn {
        flex: 1;
        min-width: 100px;
    }

    .modal-content {
        width: 95%;
        max-height: 95vh;
    }

    .settings-tabs {
        flex-wrap: wrap;
    }

    .settings-tab-btn {
        flex: 1;
        min-width: 120px;
    }

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

/* Details Modal */
.details-modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(4px);
}

.details-modal {
    background: linear-gradient(135deg, rgba(15, 23, 42, 0.95) 0%, rgba(30, 41, 59, 0.95) 100%);
    border: 1px solid rgba(167, 139, 250, 0.3);
    border-radius: 16px;
    max-width: 900px;
    max-height: 90vh;
    width: 90%;
    overflow: hidden;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
}

.details-header {
    background: linear-gradient(135deg, rgba(79, 70, 229, 0.2) 0%, rgba(168, 85, 247, 0.2) 100%);
    padding: 20px;
    border-bottom: 1px solid rgba(167, 139, 250, 0.2);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.details-header h3 {
    margin: 0;
    color: #ffffff;
    font-size: 20px;
    font-weight: 600;
}

.close-btn {
    background: none;
    border: none;
    color: rgba(255, 255, 255, 0.7);
    font-size: 24px;
    cursor: pointer;
    transition: color 0.3s ease;
    padding: 0;
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.close-btn:hover {
    color: #ffffff;
}

.details-content {
    padding: 20px;
    max-height: calc(90vh - 80px);
    overflow-y: auto;
}

.details-url {
    background: rgba(79, 70, 229, 0.1);
    border: 1px solid rgba(79, 70, 229, 0.3);
    border-radius: 8px;
    padding: 12px 16px;
    color: #a855f7;
    font-family: 'JetBrains Mono', monospace;
    font-size: 14px;
    margin-bottom: 20px;
    word-break: break-all;
}

.details-sections {
    display: grid;
    gap: 20px;
}

.details-section {
    background: rgba(15, 23, 42, 0.5);
    border: 1px solid rgba(167, 139, 250, 0.2);
    border-radius: 12px;
    padding: 16px;
}

.details-section h4 {
    margin: 0 0 12px 0;
    color: #ffffff;
    font-size: 16px;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 8px;
}

.details-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 8px;
}

.details-grid > div {
    color: rgba(255, 255, 255, 0.8);
    font-size: 14px;
    padding: 4px 0;
}

.details-grid strong {
    color: #a855f7;
    font-weight: 500;
}

.details-subsection {
    margin-top: 12px;
    padding-top: 12px;
    border-top: 1px solid rgba(167, 139, 250, 0.1);
}

.details-subsection h5 {
    margin: 0 0 8px 0;
    color: rgba(255, 255, 255, 0.9);
    font-size: 14px;
    font-weight: 500;
}

.json-preview {
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid rgba(167, 139, 250, 0.2);
    border-radius: 6px;
    padding: 12px;
    color: #a855f7;
    font-family: 'JetBrains Mono', monospace;
    font-size: 12px;
    max-height: 200px;
    overflow-y: auto;
    white-space: pre-wrap;
    word-break: break-word;
}

.details-btn {
    background: linear-gradient(135deg, rgba(79, 70, 229, 0.8) 0%, rgba(168, 85, 247, 0.8) 100%);
    border: none;
    color: #ffffff;
    padding: 4px 8px;
    border-radius: 6px;
    cursor: pointer;
    font-size: 12px;
    transition: all 0.3s ease;
}

.details-btn:hover {
    background: linear-gradient(135deg, rgba(79, 70, 229, 1) 0%, rgba(168, 85, 247, 1) 100%);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(79, 70, 229, 0.4);
}

/* Links Tab */
.links-tab-scroll-container {
    overflow-y: auto;
    max-height: calc(100vh - 280px);
    padding: 20px;
}

.links-sections {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.links-section {
    flex: 1;
    min-height: 250px;
    max-height: 400px;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.links-section-title {
    margin: 0 0 15px 0;
    font-size: 18px;
    font-weight: 600;
    color: #e2e8f0;
    padding-bottom: 8px;
    border-bottom: 2px solid rgba(124, 58, 237, 0.3);
    flex-shrink: 0;
}

.links-section .table-container {
    flex: 1;
    overflow-y: auto;
    min-height: 0;
}

.links-section .data-table {
    table-layout: fixed;
}

.links-section .data-table th:nth-child(1),
.links-section .data-table td:nth-child(1) {
    width: 22%;
    max-width: 300px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.links-section .data-table th:nth-child(2),
.links-section .data-table td:nth-child(2) {
    width: 30%;
    max-width: 400px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.links-section .data-table th:nth-child(3),
.links-section .data-table td:nth-child(3) {
    width: 22%;
    max-width: 200px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.links-section .data-table th:nth-child(4),
.links-section .data-table td:nth-child(4) {
    width: 13%;
    max-width: 150px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.links-section .data-table th:nth-child(5),
.links-section .data-table td:nth-child(5) {
    width: 13%;
    max-width: 120px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* PageSpeed Results */
.pagespeed-container {
    padding: 20px;
    height: 100%;
    overflow-y: auto;
}

.pagespeed-header {
    margin-bottom: 20px;
}

.pagespeed-header h3 {
    margin: 0 0 8px 0;
    color: #ffffff;
    font-size: 20px;
    font-weight: 600;
}

.pagespeed-description {
    color: rgba(255, 255, 255, 0.7);
    font-size: 14px;
    margin: 0;
}

.pagespeed-placeholder {
    text-align: center;
    padding: 40px 20px;
    color: rgba(255, 255, 255, 0.6);
}

.pagespeed-placeholder p {
    margin: 8px 0;
    font-size: 16px;
}

.pagespeed-results {
    display: grid;
    gap: 20px;
}

.pagespeed-page-card {
    background: rgba(15, 23, 42, 0.5);
    border: 1px solid rgba(167, 139, 250, 0.2);
    border-radius: 12px;
    padding: 20px;
}

.pagespeed-page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 1px solid rgba(167, 139, 250, 0.1);
}

.pagespeed-page-url {
    margin: 0;
    color: #a855f7;
    font-size: 16px;
    font-weight: 500;
    word-break: break-all;
}

.pagespeed-analysis-date {
    color: rgba(255, 255, 255, 0.5);
    font-size: 12px;
    white-space: nowrap;
}

.pagespeed-results-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

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

.pagespeed-device-result {
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid rgba(167, 139, 250, 0.1);
    border-radius: 8px;
    padding: 16px;
}

.pagespeed-device-result h5 {
    margin: 0 0 12px 0;
    color: #ffffff;
    font-size: 14px;
    font-weight: 600;
}

.pagespeed-score {
    font-size: 32px;
    font-weight: bold;
    text-align: center;
    padding: 12px;
    border-radius: 8px;
    margin-bottom: 16px;
}

.score-good {
    background: rgba(34, 197, 94, 0.2);
    color: #22c55e;
    border: 1px solid rgba(34, 197, 94, 0.3);
}

.score-needs-improvement {
    background: rgba(251, 191, 36, 0.2);
    color: #fbbf24;
    border: 1px solid rgba(251, 191, 36, 0.3);
}

.score-poor {
    background: rgba(239, 68, 68, 0.2);
    color: #ef4444;
    border: 1px solid rgba(239, 68, 68, 0.3);
}

.score-unknown {
    background: rgba(107, 114, 128, 0.2);
    color: #9ca3af;
    border: 1px solid rgba(107, 114, 128, 0.3);
}

.pagespeed-metrics {
    display: grid;
    gap: 8px;
}

.metric {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px 12px;
    background: rgba(15, 23, 42, 0.3);
    border-radius: 6px;
}

.metric-label {
    font-weight: 500;
    color: rgba(255, 255, 255, 0.8);
    font-size: 13px;
}

.metric-value {
    color: #a855f7;
    font-weight: 600;
    font-size: 13px;
}

.pagespeed-error {
    color: #ef4444;
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.2);
    border-radius: 6px;
    padding: 12px;
    text-align: center;
    font-size: 14px;
}

/* Visualization Tab Styles */
.visualization-container {
    display: flex;
    flex-direction: column;
    height: 100%;
    gap: 16px;
    padding: 20px;
}

.visualization-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-bottom: 16px;
    border-bottom: 1px solid #475569;
}

.visualization-header h3 {
    font-size: 18px;
    font-weight: 600;
    color: #f1f5f9;
}

.visualization-controls {
    display: flex;
    gap: 12px;
    align-items: center;
}

.visualization-controls select {
    padding: 8px 12px;
    background: #1f2937;
    border: 1px solid #4b5563;
    border-radius: 6px;
    color: #e5e7eb;
    font-size: 13px;
    cursor: pointer;
    transition: all 0.2s;
}

.visualization-controls select:hover {
    border-color: #8b5cf6;
}

.visualization-controls select:focus {
    outline: none;
    border-color: #8b5cf6;
    box-shadow: 0 0 0 3px rgba(139, 92, 246, 0.1);
}

.graph-container {
    flex: 1;
    background: rgba(15, 23, 42, 0.5);
    border: 1px solid #475569;
    border-radius: 12px;
    position: relative;
    min-height: 500px;
    overflow: hidden;
}

.graph-placeholder {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    color: #6b7280;
}

.graph-placeholder svg {
    margin-bottom: 20px;
    opacity: 0.5;
    stroke-width: 1.5;
}

.graph-placeholder h3 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 8px;
    color: #9ca3af;
}

.graph-placeholder p {
    font-size: 14px;
    color: #6b7280;
}

.visualization-legend {
    display: flex;
    gap: 24px;
    justify-content: center;
    padding: 16px;
    background: rgba(15, 23, 42, 0.3);
    border-radius: 8px;
    border: 1px solid #475569;
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: #cbd5e1;
}

.legend-color {
    width: 16px;
    height: 16px;
    border-radius: 50%;
    border: 2px solid rgba(255, 255, 255, 0.2);
}

/* Cytoscape tooltip styling */
.cy-tooltip {
    position: absolute;
    background: rgba(15, 23, 42, 0.95);
    border: 1px solid #8b5cf6;
    border-radius: 8px;
    padding: 12px 16px;
    color: #e5e7eb;
    font-size: 13px;
    pointer-events: none;
    z-index: 9999;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.5);
    max-width: 400px;
}

.cy-tooltip .tooltip-url {
    font-weight: 600;
    color: #8b5cf6;
    margin-bottom: 8px;
    word-break: break-all;
}

.cy-tooltip .tooltip-info {
    display: flex;
    flex-direction: column;
    gap: 4px;
    font-size: 12px;
    color: #cbd5e1;
}

.cy-tooltip .tooltip-status {
    display: inline-block;
    padding: 2px 8px;
    border-radius: 4px;
    font-weight: 600;
    font-size: 11px;
    margin-top: 4px;
}

.cy-tooltip .status-2xx { background: rgba(16, 185, 129, 0.2); color: #10b981; }
.cy-tooltip .status-3xx { background: rgba(59, 130, 246, 0.2); color: #3b82f6; }
.cy-tooltip .status-4xx { background: rgba(245, 158, 11, 0.2); color: #f59e0b; }
.cy-tooltip .status-5xx { background: rgba(239, 68, 68, 0.2); color: #ef4444; }

/* Cytoscape node interaction states */
.highlighted {
    opacity: 1 !important;
}

.dimmed {
    opacity: 0.2 !important;
}