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

:root {
    /* Colors */
    --primary: #0F172A;
    --primary-light: #1E293B;
    --accent-blue: #0EA5E9;
    --accent-green: #10B981;
    --accent-orange: #F59E0B;
    --accent-red: #EF4444;
    
    /* Grays */
    --gray-50: #F8FAFC;
    --gray-100: #F1F5F9;
    --gray-200: #E2E8F0;
    --gray-300: #CBD5E1;
    --gray-400: #94A3B8;
    --gray-500: #64748B;
    --gray-600: #475569;
    --gray-700: #334155;
    --gray-800: #1E293B;
    --gray-900: #0F172A;
    
    /* Layout */
    --header-height: 64px;
    --sidebar-width: 260px;
    --sidebar-collapsed-width: 72px;
    
    /* Spacing */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    --spacing-2xl: 48px;
    
    /* Borders */
    --border-radius: 8px;
    --border-radius-lg: 12px;
    --border-width: 1px;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-normal: 300ms ease;
    --transition-slow: 500ms ease;
    
    /* Typography */
    --font-inter: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-mono: 'Roboto Mono', 'Consolas', 'Monaco', monospace;
}

body {
    font-family: var(--font-inter);
    line-height: 1.6;
    color: var(--gray-800);
    background: var(--gray-50);
    overflow-x: hidden;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.2;
    color: var(--gray-900);
}

.font-inter { font-family: var(--font-inter); }
.font-mono { font-family: var(--font-mono); }

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--header-height);
    background: white;
    border-bottom: var(--border-width) solid var(--gray-200);
    z-index: 1000;
    transition: box-shadow var(--transition-fast);
}

.header:hover {
    box-shadow: var(--shadow-sm);
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
    padding: 0 var(--spacing-lg);
}

.header-left {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.sidebar-toggle {
    display: flex;
    flex-direction: column;
    justify-content: center;
    width: 24px;
    height: 24px;
    background: none;
    border: none;
    cursor: pointer;
    gap: 3px;
    transition: transform var(--transition-fast);
}

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

.hamburger-line {
    width: 100%;
    height: 2px;
    background: var(--gray-600);
    border-radius: 1px;
    transition: all var(--transition-fast);
}

.sidebar-collapsed .hamburger-line:nth-child(1) {
    transform: rotate(45deg) translate(6px, 6px);
}

.sidebar-collapsed .hamburger-line:nth-child(2) {
    opacity: 0;
}

.sidebar-collapsed .hamburger-line:nth-child(3) {
    transform: rotate(-45deg) translate(6px, -6px);
}

.logo-section {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.logo {
    width: 32px;
    height: 32px;
    transition: transform var(--transition-fast);
}

.logo:hover {
    transform: rotate(5deg) scale(1.05);
}

.header-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--primary);
}

.user-profile {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm);
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: background-color var(--transition-fast);
}

.user-profile:hover {
    background: var(--gray-100);
}

.user-avatar {
    width: 36px;
    height: 36px;
    background: var(--accent-blue);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 600;
    font-size: 0.875rem;
}

.user-info {
    display: flex;
    flex-direction: column;
}

.user-name {
    font-weight: 600;
    font-size: 0.875rem;
}

.user-role {
    font-size: 0.75rem;
    color: var(--gray-500);
}

/* Sidebar */
.sidebar {
    position: fixed;
    top: var(--header-height);
    left: 0;
    width: var(--sidebar-width);
    height: calc(100vh - var(--header-height));
    background: white;
    border-right: var(--border-width) solid var(--gray-200);
    padding: var(--spacing-lg) 0;
    transition: width var(--transition-normal), transform var(--transition-normal);
    z-index: 900;
    overflow: hidden;
}

.sidebar-collapsed .sidebar {
    width: var(--sidebar-collapsed-width);
}

.sidebar-nav {
    list-style: none;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-lg);
    margin: 0 var(--spacing-sm);
    border-radius: var(--border-radius);
    text-decoration: none;
    color: var(--gray-600);
    font-weight: 500;
    transition: all var(--transition-fast);
    white-space: nowrap;
}

.nav-link:hover {
    background: var(--gray-100);
    color: var(--gray-900);
    transform: translateX(4px);
}

.nav-link.active {
    background: var(--accent-blue);
    color: white;
}

.nav-icon {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
}

/* Main Content */
.main-content {
    margin-left: var(--sidebar-width);
    margin-top: var(--header-height);
    padding: var(--spacing-xl);
    min-height: calc(100vh - var(--header-height));
    transition: margin-left var(--transition-normal);
}

.sidebar-collapsed .main-content {
    margin-left: var(--sidebar-collapsed-width);
}

.content-section {
    display: none;
    animation: fadeIn var(--transition-normal);
}

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

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

.section-header {
    display: flex;
    justify-content: between;
    align-items: flex-start;
    margin-bottom: var(--spacing-xl);
    gap: var(--spacing-md);
}

.section-title {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary);
}

.section-subtitle {
    color: var(--gray-500);
    margin-top: var(--spacing-xs);
}

.section-controls {
    margin-left: auto;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    border: none;
    border-radius: var(--border-radius);
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
    text-decoration: none;
    font-size: 0.875rem;
}

.btn:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.btn-primary {
    background: var(--accent-blue);
    color: white;
}

.btn-primary:hover {
    background: #0284C7;
}

.btn svg {
    width: 16px;
    height: 16px;
}

/* Form Controls */
.select-input {
    padding: var(--spacing-sm) var(--spacing-md);
    border: var(--border-width) solid var(--gray-300);
    border-radius: var(--border-radius);
    background: white;
    font-size: 0.875rem;
    cursor: pointer;
    transition: border-color var(--transition-fast);
}

.select-input:hover {
    border-color: var(--accent-blue);
}

.select-input:focus {
    outline: none;
    border-color: var(--accent-blue);
    box-shadow: 0 0 0 3px rgb(14 165 233 / 0.1);
}

/* Dashboard Stats */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-2xl);
}

.stat-card {
    background: white;
    padding: var(--spacing-lg);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-sm);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    transition: all var(--transition-fast);
}

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

.stat-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--border-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
}

.stat-icon svg {
    width: 24px;
    height: 24px;
}

.bg-blue-500 { background: var(--accent-blue); }
.bg-green-500 { background: var(--accent-green); }
.bg-red-500 { background: var(--accent-red); }
.bg-orange-500 { background: var(--accent-orange); }

.stat-number {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary);
}

.stat-label {
    color: var(--gray-500);
    font-size: 0.875rem;
}

/* Dashboard Grid */
.dashboard-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
}

.dashboard-card {
    background: white;
    padding: var(--spacing-lg);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-sm);
}

.card-title {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    color: var(--primary);
}

/* Recent Tests */
.recent-tests {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.test-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm);
    border-radius: var(--border-radius);
    transition: background-color var(--transition-fast);
}

.test-item:hover {
    background: var(--gray-50);
}

.test-status {
    width: 8px;
    height: 8px;
    border-radius: 50%;
}

.test-status.success { background: var(--accent-green); }
.test-status.error { background: var(--accent-red); }
.test-status.warning { background: var(--accent-orange); }

.test-details {
    display: flex;
    flex-direction: column;
}

.test-name {
    font-weight: 500;
    color: var(--gray-900);
}

.test-time {
    font-size: 0.75rem;
    color: var(--gray-500);
}

/* System Status */
.system-status {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

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

.status-label {
    font-weight: 500;
    color: var(--gray-700);
}

.status-indicator {
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--border-radius);
    font-size: 0.75rem;
    font-weight: 600;
}

.status-indicator.online {
    background: #DCFCE7;
    color: #166534;
}

/* Table Styles */
.table-container {
    background: white;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
}

.data-table th {
    background: var(--gray-50);
    padding: var(--spacing-md);
    text-align: left;
    font-weight: 600;
    color: var(--gray-700);
    border-bottom: var(--border-width) solid var(--gray-200);
}

.data-table td {
    padding: var(--spacing-md);
    border-bottom: var(--border-width) solid var(--gray-100);
}

.table-row {
    transition: background-color var(--transition-fast);
}

.table-row:hover {
    background: var(--gray-50);
}

.test-case-info {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.test-case-name {
    font-weight: 500;
    color: var(--gray-900);
}

.test-case-id {
    font-size: 0.75rem;
    color: var(--gray-500);
    font-family: var(--font-mono);
}

/* Badges */
.category-badge, .status-badge {
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--border-radius);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.category-badge.auth { background: #DBEAFE; color: #1E40AF; }
.category-badge.payment { background: #FEF3C7; color: #92400E; }
.category-badge.database { background: #D1FAE5; color: #065F46; }
.category-badge.api { background: #E0E7FF; color: #3730A3; }

.status-badge.success { background: #DCFCE7; color: #166534; }
.status-badge.error { background: #FEE2E2; color: #991B1B; }
.status-badge.warning { background: #FEF3C7; color: #92400E; }

/* Action Buttons */
.action-buttons {
    display: flex;
    gap: var(--spacing-xs);
}

.btn-action {
    padding: var(--spacing-xs) var(--spacing-sm);
    border: var(--border-width) solid var(--gray-300);
    border-radius: var(--border-radius);
    background: white;
    color: var(--gray-600);
    font-size: 0.75rem;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.btn-action:hover {
    border-color: var(--accent-blue);
    color: var(--accent-blue);
}

.btn-action.run:hover {
    border-color: var(--accent-green);
    color: var(--accent-green);
}

.btn-action.stop:hover {
    border-color: var(--accent-red);
    color: var(--accent-red);
}

/* Charts */
.results-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.chart-container {
    background: white;
    padding: var(--spacing-lg);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-sm);
}

.chart-title {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    color: var(--primary);
}

#trendsChart, #distributionChart {
    width: 100%;
    height: auto;
}

/* Results Summary */
.results-summary {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
}

.summary-card {
    background: white;
    padding: var(--spacing-lg);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-sm);
}

.summary-card h4 {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    color: var(--primary);
}

.performance-metrics {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: var(--spacing-lg);
}

.metric {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.metric-label {
    font-size: 0.875rem;
    color: var(--gray-500);
}

.metric-value {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary);
}

/* Reports */
.reports-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.report-item {
    background: white;
    padding: var(--spacing-lg);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-sm);
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: all var(--transition-fast);
}

.report-item:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.report-title {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--primary);
    margin-bottom: var(--spacing-xs);
}

.report-description {
    color: var(--gray-600);
    margin-bottom: var(--spacing-xs);
}

.report-date {
    font-size: 0.75rem;
    color: var(--gray-500);
    font-family: var(--font-mono);
}

.btn-download {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--accent-blue);
    color: white;
    border: none;
    border-radius: var(--border-radius);
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
    font-size: 0.875rem;
}

.btn-download:hover {
    background: #0284C7;
    transform: translateY(-1px);
}

.btn-download svg {
    width: 16px;
    height: 16px;
}

/* Settings */
.settings-form {
    background: white;
    padding: var(--spacing-xl);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-sm);
}

.setting-group {
    margin-bottom: var(--spacing-xl);
}

.setting-group:last-child {
    margin-bottom: 0;
}

.setting-group-title {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--primary);
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-sm);
    border-bottom: var(--border-width) solid var(--gray-200);
}

.setting-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md) 0;
    border-bottom: var(--border-width) solid var(--gray-100);
}

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

.setting-label {
    font-weight: 500;
    color: var(--gray-900);
}

.setting-description {
    font-size: 0.875rem;
    color: var(--gray-500);
    margin-top: var(--spacing-xs);
}

/* Toggle Switch */
.toggle-switch {
    position: relative;
    display: inline-block;
    width: 44px;
    height: 24px;
}

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

.toggle-slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--gray-300);
    transition: var(--transition-fast);
    border-radius: 24px;
}

.toggle-slider:before {
    position: absolute;
    content: "";
    height: 18px;
    width: 18px;
    left: 3px;
    bottom: 3px;
    background: white;
    transition: var(--transition-fast);
    border-radius: 50%;
}

input:checked + .toggle-slider {
    background: var(--accent-blue);
}

input:checked + .toggle-slider:before {
    transform: translateX(20px);
}

/* Footer */
.footer {
    margin-left: var(--sidebar-width);
    padding: var(--spacing-lg) var(--spacing-xl);
    background: white;
    border-top: var(--border-width) solid var(--gray-200);
    transition: margin-left var(--transition-normal);
}

.sidebar-collapsed .footer {
    margin-left: var(--sidebar-collapsed-width);
}

.footer-content {
    text-align: center;
    color: var(--gray-500);
    font-size: 0.875rem;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .dashboard-grid {
        grid-template-columns: 1fr;
    }
    
    .results-grid {
        grid-template-columns: 1fr;
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
        width: var(--sidebar-width);
    }
    
    .sidebar.mobile-open {
        transform: translateX(0);
    }
    
    .main-content {
        margin-left: 0;
        padding: var(--spacing-md);
    }
    
    .footer {
        margin-left: 0;
        padding: var(--spacing-md);
    }
    
    .section-header {
        flex-direction: column;
        align-items: stretch;
        gap: var(--spacing-sm);
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .user-info {
        display: none;
    }
    
    .data-table {
        font-size: 0.875rem;
    }
    
    .data-table th,
    .data-table td {
        padding: var(--spacing-sm);
    }
    
    .action-buttons {
        flex-direction: column;
        gap: var(--spacing-xs);
    }
    
    .btn-action {
        font-size: 0.7rem;
        padding: var(--spacing-xs);
    }
}

@media (max-width: 480px) {
    .header-content {
        padding: 0 var(--spacing-md);
    }
    
    .header-title {
        font-size: 1rem;
    }
    
    .logo {
        width: 28px;
        height: 28px;
    }
    
    .user-avatar {
        width: 32px;
        height: 32px;
        font-size: 0.8rem;
    }
    
    .section-title {
        font-size: 1.5rem;
    }
    
    .performance-metrics {
        grid-template-columns: 1fr;
        text-align: center;
    }
}

/* Dark Mode Support */
.dark-mode {
    --gray-50: #0F172A;
    --gray-100: #1E293B;
    --gray-200: #334155;
    background: var(--primary);
    color: var(--gray-100);
}

.dark-mode .header,
.dark-mode .sidebar,
.dark-mode .dashboard-card,
.dark-mode .table-container,
.dark-mode .chart-container,
.dark-mode .report-item,
.dark-mode .settings-form,
.dark-mode .footer {
    background: var(--primary-light);
    border-color: var(--gray-600);
}

.dark-mode .section-title,
.dark-mode .card-title,
.dark-mode .stat-number {
    color: white;
}

.dark-mode .table-row:hover {
    background: var(--gray-700);
}

/* Animations */
@keyframes slideIn {
    from { transform: translateX(-100%); }
    to { transform: translateX(0); }
}

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

.loading {
    animation: pulse 2s infinite;
}

/* Scrollbar Styling */
::-webkit-scrollbar {
    width: 6px;
}

::-webkit-scrollbar-track {
    background: var(--gray-100);
}

::-webkit-scrollbar-thumb {
    background: var(--gray-400);
    border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--gray-500);
}

/* Focus States */
.nav-link:focus,
.btn:focus,
.select-input:focus,
.btn-action:focus {
    outline: 2px solid var(--accent-blue);
    outline-offset: 2px;
}

/* Print Styles */
@media print {
    .header,
    .sidebar,
    .footer {
        display: none;
    }
    
    .main-content {
        margin: 0;
        padding: 0;
    }
    
    .content-section {
        display: block !important;
        page-break-before: always;
    }
    
    .content-section:first-child {
        page-break-before: auto;
    }
}