/**
 * SD Card Testing Dashboard - Styles
 * Modern, clean design with professional color scheme
 */

/* ==================== CSS VARIABLES ==================== */
:root {
    /* Colors */
    --primary-color: #3b82f6;
    --secondary-color: #8b5cf6;
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --error-color: #ef4444;
    --info-color: #06b6d4;
    --dark-color: #1f2937;
    --light-color: #f3f4f6;
    --white: #ffffff;
    
    /* Text */
    --text-primary: #111827;
    --text-secondary: #6b7280;
    --text-light: #9ca3af;
    
    /* Backgrounds */
    --bg-primary: #ffffff;
    --bg-secondary: #f9fafb;
    --bg-dark: #1f2937;
    
    /* Borders */
    --border-color: #e5e7eb;
    --border-radius: 12px;
    --border-radius-sm: 8px;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    
    /* Typography */
    --font-sans: 'Outfit', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
}

/* ==================== GLOBAL RESET ==================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-sans);
    color: var(--text-primary);
    background: var(--bg-secondary);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ==================== LAYOUT ==================== */
.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

/* ==================== HEADER ==================== */
.header {
    background: var(--bg-dark);
    color: var(--white);
    padding: var(--spacing-lg) 0;
    box-shadow: var(--shadow-md);
    position: sticky;
    top: 0;
    z-index: 100;
}

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

.header-left {
    flex: 1;
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: var(--spacing-xs);
}

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

.subtitle {
    color: #9ca3af;
    font-size: 0.95rem;
    font-weight: 400;
}

/* ==================== MAIN CONTENT ==================== */
.main {
    padding: var(--spacing-xl) 0;
    min-height: calc(100vh - 200px);
}

.section {
    background: var(--bg-primary);
    border-radius: var(--border-radius);
    padding: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
    box-shadow: var(--shadow-sm);
}

.section-title {
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: var(--spacing-lg);
    color: var(--text-primary);
}

.subsection-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin: var(--spacing-xl) 0 var(--spacing-md) 0;
    color: var(--text-primary);
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.section-actions {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

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

.stat-card {
    background: linear-gradient(135deg, #f9fafb 0%, #ffffff 100%);
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: var(--spacing-lg);
    transition: transform 0.2s, box-shadow 0.2s;
}

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

.stat-card.primary {
    border-color: var(--primary-color);
    background: linear-gradient(135deg, #dbeafe 0%, #ffffff 100%);
}

.stat-card.success {
    border-color: var(--success-color);
    background: linear-gradient(135deg, #d1fae5 0%, #ffffff 100%);
}

.stat-card.error {
    border-color: var(--error-color);
    background: linear-gradient(135deg, #fee2e2 0%, #ffffff 100%);
}

.stat-card.info {
    border-color: var(--info-color);
    background: linear-gradient(135deg, #cffafe 0%, #ffffff 100%);
}

.stat-label {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--spacing-xs);
}

.stat-value {
    font-size: 2.5rem;
    font-weight: 700;
    font-family: var(--font-mono);
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.stat-detail {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

/* ==================== PROBLEM CARDS ==================== */
.problem-cards {
    display: grid;
    gap: var(--spacing-md);
}

.problem-card {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-lg);
    background: #fef2f2;
    border: 2px solid #fecaca;
    border-radius: var(--border-radius-sm);
}

.problem-icon {
    font-size: 2rem;
}

.problem-info {
    flex: 1;
}

.problem-info h4 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
}

.problem-info p {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.problem-verdict {
    padding: var(--spacing-xs) var(--spacing-md);
    background: var(--error-color);
    color: white;
    border-radius: var(--border-radius-sm);
    font-weight: 600;
    font-size: 0.875rem;
}

/* ==================== RECENT TESTS ==================== */
.recent-tests {
    display: grid;
    gap: var(--spacing-sm);
}

.test-item {
    display: grid;
    grid-template-columns: 140px 1fr auto auto;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--bg-secondary);
    border-radius: var(--border-radius-sm);
    border-left: 4px solid var(--border-color);
    transition: all 0.2s;
}

.test-item:hover {
    border-left-color: var(--primary-color);
    background: #f3f4f6;
}

.test-date {
    font-family: var(--font-mono);
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.test-info {
    flex: 1;
}

.test-card-name {
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
}

.test-card-detail {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.test-speed {
    display: flex;
    gap: var(--spacing-md);
    font-family: var(--font-mono);
    font-size: 0.875rem;
}

.speed-label {
    color: var(--text-secondary);
    font-weight: 600;
}

/* ==================== BRAND STATS ==================== */
.brand-stats {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: var(--spacing-md);
}

.brand-card {
    padding: var(--spacing-lg);
    background: var(--bg-secondary);
    border-radius: var(--border-radius-sm);
    border: 2px solid var(--border-color);
    transition: all 0.2s;
}

.brand-card:hover {
    border-color: var(--primary-color);
    transform: translateY(-2px);
}

.brand-name {
    font-weight: 700;
    font-size: 1.125rem;
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
}

.brand-count {
    margin-bottom: var(--spacing-md);
    color: var(--text-secondary);
}

.brand-speed {
    font-family: var(--font-mono);
    font-size: 0.875rem;
}

/* ==================== BUTTONS ==================== */
.btn {
    padding: var(--spacing-sm) var(--spacing-lg);
    border: none;
    border-radius: var(--border-radius-sm);
    font-weight: 600;
    font-size: 0.9375rem;
    cursor: pointer;
    transition: all 0.2s;
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
}

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

.btn-primary:hover {
    background: #2563eb;
    transform: translateY(-1px);
}

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

.btn-secondary:hover {
    border-color: var(--primary-color);
    background: white;
}

.btn-small {
    padding: var(--spacing-xs) var(--spacing-md);
    font-size: 0.875rem;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    font-weight: 600;
    transition: all 0.2s;
}

.btn-small:hover {
    background: #2563eb;
}

.btn-icon {
    font-size: 1.125rem;
}

/* ==================== FORM INPUTS ==================== */
.search-input,
.filter-select {
    padding: var(--spacing-sm) var(--spacing-md);
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    font-size: 0.9375rem;
    font-family: var(--font-sans);
    transition: border-color 0.2s;
}

.search-input {
    min-width: 250px;
}

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

.filter-select {
    cursor: pointer;
    background: white;
}

/* ==================== TABLE ==================== */
.table-responsive {
    overflow-x: auto;
    border-radius: var(--border-radius-sm);
    border: 1px solid var(--border-color);
}

.cards-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9375rem;
}

.cards-table thead {
    background: var(--bg-dark);
    color: white;
}

.cards-table th {
    padding: var(--spacing-md);
    text-align: left;
    font-weight: 600;
    white-space: nowrap;
    position: relative;
}

.cards-table th.sortable {
    cursor: pointer;
    user-select: none;
    transition: background-color 0.2s;
}

.cards-table th.sortable:hover {
    background: #374151;
}

.cards-table th.sortable.sorted {
    background: #4b5563;
}

.sort-icon {
    margin-left: var(--spacing-xs);
    color: #9ca3af;
    font-size: 0.875rem;
}

.cards-table th.sorted .sort-icon {
    color: white;
}

.cards-table tbody tr {
    border-bottom: 1px solid var(--border-color);
    transition: background-color 0.2s;
}

.cards-table tbody tr:hover {
    background: var(--bg-secondary);
}

.cards-table td {
    padding: var(--spacing-md);
    vertical-align: top;
}

.serial-cell {
    font-family: var(--font-mono);
    font-weight: 600;
}

.card-brand {
    font-weight: 600;
}

.card-model {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.speed-cell {
    font-family: var(--font-mono);
    font-weight: 500;
}

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

.test-total {
    font-weight: 600;
}

.test-pass {
    color: var(--success-color);
    font-size: 0.875rem;
}

.test-fail {
    color: var(--error-color);
    font-size: 0.875rem;
}

/* ==================== PAGINATION ==================== */
.pagination-info {
    font-size: 0.875rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.pagination-controls {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-lg);
    flex-wrap: wrap;
}

.pagination-buttons {
    display: flex;
    gap: var(--spacing-xs);
    align-items: center;
}

.btn-pagination {
    padding: var(--spacing-sm) var(--spacing-md);
    border: 2px solid var(--border-color);
    background: white;
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    font-weight: 600;
    font-size: 0.875rem;
    transition: all 0.2s;
    min-width: 40px;
}

.btn-pagination:hover:not(:disabled) {
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.btn-pagination.active {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

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

.pagination-ellipsis {
    padding: 0 var(--spacing-xs);
    color: var(--text-secondary);
}

/* ==================== BADGES ==================== */
.badge {
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--border-radius-sm);
    font-weight: 600;
    font-size: 0.8125rem;
    text-transform: uppercase;
    letter-spacing: 0.025em;
    display: inline-block;
}

.badge-active {
    background: #d1fae5;
    color: #065f46;
}

.badge-retired {
    background: #e5e7eb;
    color: #4b5563;
}

.badge-failed {
    background: #fee2e2;
    color: #991b1b;
}

.badge-sold {
    background: #dbeafe;
    color: #1e40af;
}

.badge-lost {
    background: #fef3c7;
    color: #92400e;
}

.badge-pass {
    background: #d1fae5;
    color: #065f46;
}

.badge-warning {
    background: #fef3c7;
    color: #92400e;
}

.badge-fake,
.badge-failing {
    background: #fee2e2;
    color: #991b1b;
}

.badge-interrupted {
    background: #e5e7eb;
    color: #4b5563;
}

/* ==================== MODAL ==================== */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(4px);
}

.modal-content {
    position: relative;
    background: white;
    border-radius: var(--border-radius);
    max-width: 900px;
    width: 90%;
    max-height: 90vh;
    overflow: hidden;
    box-shadow: var(--shadow-xl);
    display: flex;
    flex-direction: column;
}

.modal-header {
    padding: var(--spacing-lg);
    border-bottom: 2px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-title {
    font-size: 1.5rem;
    font-weight: 700;
}

.modal-close {
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-secondary);
    transition: color 0.2s;
    padding: var(--spacing-xs);
}

.modal-close:hover {
    color: var(--error-color);
}

.modal-body {
    padding: var(--spacing-lg);
    overflow-y: auto;
}

/* ==================== CARD DETAIL ==================== */
.detail-section {
    margin-bottom: var(--spacing-xl);
}

.detail-section h3 {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

.detail-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-md);
}

.detail-item {
    padding: var(--spacing-md);
    background: var(--bg-secondary);
    border-radius: var(--border-radius-sm);
}

.detail-label {
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--spacing-xs);
}

.detail-value {
    font-size: 1rem;
    font-weight: 500;
    color: var(--text-primary);
}

/* ==================== TEST TIMELINE ==================== */
.test-timeline {
    display: grid;
    gap: var(--spacing-md);
}

.timeline-item {
    padding: var(--spacing-lg);
    background: var(--bg-secondary);
    border-radius: var(--border-radius-sm);
    border-left: 4px solid var(--border-color);
}

.timeline-item.pass {
    border-left-color: var(--success-color);
    background: #f0fdf4;
}

.timeline-item.warning {
    border-left-color: var(--warning-color);
    background: #fffbeb;
}

.timeline-item.fake,
.timeline-item.failing {
    border-left-color: var(--error-color);
    background: #fef2f2;
}

.timeline-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-md);
}

.timeline-date {
    font-family: var(--font-mono);
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-secondary);
}

.timeline-details {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-sm);
    font-size: 0.9375rem;
}

/* ==================== CHART CONTAINER ==================== */
.chart-container {
    position: relative;
    height: 300px;
    padding: var(--spacing-md);
    background: var(--bg-secondary);
    border-radius: var(--border-radius-sm);
}

/* ==================== LOADING STATES ==================== */
.loading {
    text-align: center;
    padding: var(--spacing-xl);
    color: var(--text-secondary);
}

.spinner {
    width: 50px;
    height: 50px;
    margin: 0 auto var(--spacing-md);
    border: 4px solid var(--border-color);
    border-top: 4px solid var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* ==================== FOOTER ==================== */
.footer {
    background: var(--bg-dark);
    color: var(--white);
    padding: var(--spacing-lg) 0;
    margin-top: var(--spacing-xl);
}

.footer-text {
    text-align: center;
    font-size: 0.875rem;
    color: #9ca3af;
}

/* ==================== RESPONSIVE ==================== */
@media (max-width: 768px) {
    .header-content {
        flex-direction: column;
        gap: var(--spacing-md);
    }
    
    .section-header {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .section-actions {
        width: 100%;
    }
    
    .search-input,
    .filter-select {
        width: 100%;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .test-item {
        grid-template-columns: 1fr;
        gap: var(--spacing-sm);
    }
    
    .modal-content {
        width: 95%;
    }
    
    .cards-table {
        font-size: 0.875rem;
    }
    
    .cards-table th,
    .cards-table td {
        padding: var(--spacing-sm);
    }
}

@media (max-width: 480px) {
    .logo {
        font-size: 1.5rem;
    }
    
    .stat-value {
        font-size: 2rem;
    }
    
    .pagination-buttons {
        flex-wrap: wrap;
    }
}