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

:root {
    --primary-color: #2563eb;
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --error-color: #ef4444;
    --bg-color: #f3f4f6;
    --card-bg: #ffffff;
    --text-color: #1f2937;
    --text-muted: #6b7280;
    --border-color: #e5e7eb;
    --shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Navigation */
.navbar {
    background-color: var(--card-bg);
    box-shadow: var(--shadow);
    padding: 1rem 0;
    margin-bottom: 2rem;
}

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

.nav-brand h1 {
    font-size: 1.5rem;
    color: var(--primary-color);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-menu a {
    text-decoration: none;
    color: var(--text-color);
    font-weight: 500;
    padding: 0.5rem 1rem;
    border-radius: 0.375rem;
    transition: background-color 0.2s;
}

.nav-menu a:hover {
    background-color: var(--bg-color);
}

.nav-menu a.active {
    background-color: var(--primary-color);
    color: white;
}

/* Cards */
.card {
    background-color: var(--card-bg);
    border-radius: 0.5rem;
    box-shadow: var(--shadow);
    margin-bottom: 1.5rem;
    overflow: hidden;
}

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

.card-header h3 {
    font-size: 1.25rem;
    font-weight: 600;
}

.card-body {
    padding: 1.5rem;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.5rem 1rem;
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: 0.375rem;
    font-weight: 500;
    cursor: pointer;
    transition: opacity 0.2s;
}

.btn:hover {
    opacity: 0.9;
}

.btn-small {
    padding: 0.25rem 0.75rem;
    font-size: 0.875rem;
}

.btn-secondary {
    background-color: var(--text-muted);
}

/* Status Card */
.status-card .status-info {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.status-badge {
    display: inline-block;
    padding: 0.5rem 1rem;
    border-radius: 0.375rem;
    font-weight: 600;
    width: fit-content;
}

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

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

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

/* Suppliers Grid */
.suppliers-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.supplier-card {
    background-color: var(--card-bg);
    border-radius: 0.5rem;
    padding: 1rem;
    box-shadow: var(--shadow);
    border-left: 4px solid var(--success-color);
}

.supplier-card.error {
    border-left-color: var(--error-color);
}

.supplier-card.warning {
    border-left-color: var(--warning-color);
}

.supplier-card h4 {
    margin-bottom: 0.75rem;
    font-size: 1.125rem;
}

.supplier-stats {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.stat-item {
    display: flex;
    justify-content: space-between;
    font-size: 0.875rem;
}

.stat-item .label {
    color: var(--text-muted);
}

.stat-item .value {
    font-weight: 600;
}

.stat-item.error .value {
    color: var(--error-color);
}

/* Stats Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.stat-card {
    background-color: var(--card-bg);
    border-radius: 0.5rem;
    padding: 1.5rem;
    box-shadow: var(--shadow);
    display: flex;
    align-items: center;
    gap: 1rem;
}

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

.stat-content h4 {
    font-size: 0.875rem;
    color: var(--text-muted);
    margin-bottom: 0.25rem;
}

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

/* Table */
.table-responsive {
    overflow-x: auto;
}

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

.table th,
.table td {
    padding: 0.75rem;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.table th {
    font-weight: 600;
    color: var(--text-muted);
    font-size: 0.875rem;
    text-transform: uppercase;
}

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

.table-hover tbody tr.row-error {
    background-color: #fef2f2;
}

.table-hover tbody tr.row-warning {
    background-color: #fffbeb;
}

/* Badges */
.badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    border-radius: 9999px;
    font-size: 0.75rem;
    font-weight: 600;
}

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

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

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

/* Alerts */
.alert {
    padding: 1rem;
    border-radius: 0.375rem;
    margin-bottom: 1rem;
}

.alert-info {
    background-color: #dbeafe;
    color: #1e40af;
}

.alert-error {
    background-color: #fee2e2;
    color: #991b1b;
}

/* Log Viewer */
.log-selector {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    margin-bottom: 1rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.form-group label {
    font-weight: 500;
    font-size: 0.875rem;
    color: var(--text-muted);
}

.form-group select,
.form-group input {
    padding: 0.5rem;
    border: 1px solid var(--border-color);
    border-radius: 0.375rem;
    font-size: 0.875rem;
}

.form-actions {
    grid-column: 1 / -1;
    display: flex;
    gap: 0.5rem;
}

.log-info {
    display: flex;
    gap: 1rem;
    align-items: center;
    font-size: 0.875rem;
}

.log-filename {
    font-weight: 600;
}

.log-count {
    color: var(--text-muted);
}

.log-viewer {
    background-color: #1f2937;
    color: #f3f4f6;
    border-radius: 0.375rem;
    padding: 1rem;
    max-height: 600px;
    overflow-y: auto;
    font-family: 'Courier New', monospace;
    font-size: 0.875rem;
    line-height: 1.5;
}

.log-lines {
    display: flex;
    flex-direction: column;
}

.log-line {
    padding: 0.25rem 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.log-line:last-child {
    border-bottom: none;
}

.log-timestamp {
    color: #9ca3af;
    margin-right: 0.5rem;
}

.log-level {
    display: inline-block;
    padding: 0.125rem 0.5rem;
    border-radius: 0.25rem;
    font-weight: 600;
    margin-right: 0.5rem;
    font-size: 0.75rem;
}

.log-level.info {
    background-color: #3b82f6;
}

.log-level.warning {
    background-color: #f59e0b;
}

.log-level.error {
    background-color: #ef4444;
}

.log-message {
    color: #f3f4f6;
}

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

.modal-content {
    background-color: var(--card-bg);
    margin: 5% auto;
    border-radius: 0.5rem;
    max-width: 800px;
    box-shadow: var(--shadow-lg);
}

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

.modal-close {
    font-size: 2rem;
    font-weight: bold;
    color: var(--text-muted);
    background: none;
    border: none;
    cursor: pointer;
}

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

.modal-body {
    padding: 1.5rem;
    max-height: 70vh;
    overflow-y: auto;
}

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

.details-section h4 {
    margin-bottom: 1rem;
    color: var(--primary-color);
}

.details-table {
    width: 100%;
    margin-bottom: 1rem;
}

.details-table td {
    padding: 0.5rem;
    border-bottom: 1px solid var(--border-color);
}

.supplier-details {
    background-color: var(--bg-color);
    padding: 1rem;
    border-radius: 0.375rem;
    margin-bottom: 1rem;
    border-left: 4px solid var(--success-color);
}

.supplier-details.error {
    border-left-color: var(--error-color);
}

.supplier-details.warning {
    border-left-color: var(--warning-color);
}

.supplier-details h5 {
    margin-bottom: 0.75rem;
}

/* Utilities */
.text-center {
    text-align: center;
}

.text-muted {
    color: var(--text-muted);
}

.loading {
    text-align: center;
    padding: 2rem;
    color: var(--text-muted);
}

.form-inline {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.form-inline label {
    font-size: 0.875rem;
    color: var(--text-muted);
}

.form-inline select {
    padding: 0.25rem 0.5rem;
    border: 1px solid var(--border-color);
    border-radius: 0.375rem;
    font-size: 0.875rem;
}

/* Footer */
footer {
    background-color: var(--card-bg);
    padding: 2rem 0;
    margin-top: 3rem;
    text-align: center;
    color: var(--text-muted);
    font-size: 0.875rem;
}

/* Responsive */
@media (max-width: 768px) {
    .navbar .container {
        flex-direction: column;
        gap: 1rem;
    }
    
    .nav-menu {
        flex-direction: column;
        gap: 0.5rem;
        width: 100%;
    }
    
    .stats-grid,
    .suppliers-grid {
        grid-template-columns: 1fr;
    }
    
    .log-selector {
        grid-template-columns: 1fr;
    }
    
    .card-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.5rem;
    }
}