/* ==================== CSS Variables ==================== */
:root {
    --primary-color: #007bff;
    --secondary-color: #6c757d;
    --success-color: #28a745;
    --danger-color: #dc3545;
    --warning-color: #ffc107;
    --info-color: #17a2b8;
    --light-color: #f8f9fa;
    --dark-color: #343a40;
    
    --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    --border-radius: 4px;
    --box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    --transition: all 0.3s ease;
    
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
}

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

body {
    font-family: var(--font-family);
    font-size: 14px;
    line-height: 1.6;
    color: #333;
    background: #f5f5f5;
}

a {
    color: var(--primary-color);
    text-decoration: none;
    transition: var(--transition);
}

a:hover {
    color: #0056b3;
}

/* ==================== Utility Classes ==================== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }
.text-muted { color: var(--secondary-color); }

.mt-sm { margin-top: var(--spacing-sm); }
.mt-md { margin-top: var(--spacing-md); }
.mt-lg { margin-top: var(--spacing-lg); }
.mb-sm { margin-bottom: var(--spacing-sm); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }

/* ==================== Buttons ==================== */
.btn {
    display: inline-block;
    padding: 10px 20px;
    font-size: 14px;
    font-weight: 500;
    text-align: center;
    border: 1px solid transparent;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition);
    background: #fff;
    color: #333;
    border-color: #ddd;
}

.btn:hover {
    background: #f8f9fa;
}

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

.btn-primary:hover {
    background: #0056b3;
    color: white;
}

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

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

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

.btn-warning {
    background: var(--warning-color);
    color: #333;
}

.btn-block {
    display: block;
    width: 100%;
}

.btn-sm {
    padding: 6px 12px;
    font-size: 12px;
}

.btn-xs {
    padding: 4px 8px;
    font-size: 11px;
}

/* ==================== Forms ==================== */
.form-group {
    margin-bottom: var(--spacing-md);
}

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

label {
    display: block;
    margin-bottom: 6px;
    font-weight: 500;
    color: #555;
}

input[type="text"],
input[type="email"],
input[type="password"],
input[type="tel"],
input[type="number"],
input[type="date"],
select,
textarea {
    width: 100%;
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: var(--border-radius);
    font-size: 14px;
    transition: var(--transition);
}

input:focus,
select:focus,
textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(0,123,255,0.1);
}

.form-check {
    display: flex;
    align-items: center;
}

.form-check input[type="checkbox"] {
    width: auto;
    margin-right: 8px;
}

.form-actions {
    display: flex;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-lg);
}

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

small {
    display: block;
    margin-top: 4px;
    color: var(--secondary-color);
    font-size: 12px;
}

/* ==================== Alerts ==================== */
.alert {
    padding: 12px 16px;
    margin-bottom: var(--spacing-md);
    border-radius: var(--border-radius);
    border-left: 4px solid;
}

.alert-success {
    background: #d4edda;
    border-color: var(--success-color);
    color: #155724;
}

.alert-error,
.alert-danger {
    background: #f8d7da;
    border-color: var(--danger-color);
    color: #721c24;
}

.alert-warning {
    background: #fff3cd;
    border-color: var(--warning-color);
    color: #856404;
}

.alert-info {
    background: #d1ecf1;
    border-color: var(--info-color);
    color: #0c5460;
}

/* ==================== Badges ==================== */
.badge {
    display: inline-block;
    padding: 4px 8px;
    font-size: 11px;
    font-weight: 600;
    border-radius: 3px;
    text-transform: uppercase;
    background: var(--secondary-color);
    color: white;
}

.badge-success,
.badge-active {
    background: var(--success-color);
}

.badge-danger,
.badge-revoked {
    background: var(--danger-color);
}

.badge-warning,
.badge-expired {
    background: var(--warning-color);
    color: #333;
}

.badge-suspended {
    background: #6c757d;
}

/* ==================== Tables ==================== */
.table-responsive {
    overflow-x: auto;
    margin-bottom: var(--spacing-md);
}

.data-table {
    width: 100%;
    background: white;
    border-collapse: collapse;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--box-shadow);
}

.data-table thead {
    background: #f8f9fa;
}

.data-table th {
    padding: 12px;
    text-align: left;
    font-weight: 600;
    color: #555;
    border-bottom: 2px solid #dee2e6;
}

.data-table td {
    padding: 12px;
    border-bottom: 1px solid #dee2e6;
}

.data-table tbody tr:hover {
    background: #f8f9fa;
}

.data-table code {
    background: #f8f9fa;
    padding: 2px 6px;
    border-radius: 3px;
    font-size: 12px;
}

.data-table .actions {
    white-space: nowrap;
}

.data-table .actions .btn {
    margin-right: 4px;
}

/* ==================== Cards ==================== */
.stat-card {
    background: white;
    padding: var(--spacing-lg);
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.stat-icon {
    font-size: 36px;
}

.stat-content h3 {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 4px;
}

.stat-content p {
    color: var(--secondary-color);
    font-size: 13px;
}

.stat-card.success {
    border-left: 4px solid var(--success-color);
}

.stat-card.warning {
    border-left: 4px solid var(--warning-color);
}

/* ==================== Auth Pages ==================== */
.auth-page {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    background: linear-gradient(135deg, #1a2a55 0%, #111b37 100%);
}

.auth-container {
    width: 100%;
    max-width: 400px;
    padding: var(--spacing-md);
}

.auth-card {
    background: white;
    padding: var(--spacing-xl);
    border-radius: 8px;
    box-shadow: 0 10px 40px rgba(0,0,0,0.2);
}

.auth-header {
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.auth-header h1 {
    font-size: 24px;
    margin-bottom: 8px;
    color: #333;
}

.auth-header p {
    color: var(--secondary-color);
}

.auth-form .form-group:last-of-type {
    margin-bottom: var(--spacing-lg);
}

.auth-footer {
    text-align: center;
    margin-top: var(--spacing-md);
    padding-top: var(--spacing-md);
    border-top: 1px solid #eee;
    font-size: 13px;
}

.auth-footer .separator {
    margin: 0 8px;
    color: #ccc;
}

/* ==================== Admin Layout ==================== */
.admin-layout {
    display: flex;
    min-height: 100vh;
    background: #f5f5f5;

}

.admin-wrapper {
    display: flex;
    width: 100%;
}

.admin-sidebar {
    width: 250px;
    background: #2c3e50;
    color: white;
    height: 100vh;
    position: sticky;
    top: 0;
    overflow-y: auto;
}

.sidebar-header {
    padding: var(--spacing-lg);
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.sidebar-header h2 {
    font-size: 18px;
    margin-bottom: 4px;
}

.sidebar-nav {
    padding: var(--spacing-md) 0;
}

.nav-section {
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: 11px;
    text-transform: uppercase;
    color: rgba(255,255,255,0.5);
    font-weight: 600;
    margin-top: var(--spacing-md);
}

.nav-item {
    display: flex;
    align-items: center;
    padding: 12px var(--spacing-md);
    color: rgba(255,255,255,0.8);
    transition: var(--transition);
}

.nav-item:hover,
.nav-item.active {
    background: rgba(255,255,255,0.1);
    color: white;
}

.nav-item .icon {
    margin-right: 12px;
    font-size: 18px;
}

.admin-main {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.admin-header {
    background: white;
    padding: var(--spacing-md) var(--spacing-lg);
    box-shadow: var(--box-shadow);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.admin-header h1 {
    font-size: 20px;
    font-weight: 600;
}

.admin-content {
    flex: 1;
    padding: var(--spacing-lg);
}

.admin-footer {
    padding: var(--spacing-md);
    text-align: center;
    background: white;
    border-top: 1px solid #eee;
    font-size: 12px;
    color: var(--secondary-color);
}

/* ==================== Customer Layout ==================== */
.customer-layout {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.customer-header {
    background: white;
    box-shadow: var(--box-shadow);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--spacing-md) var(--spacing-lg);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.header-nav {
    display: flex;
    gap: var(--spacing-lg);
}

.header-nav a {
    color: #555;
    font-weight: 500;
    padding: 8px 0;
    border-bottom: 2px solid transparent;
    transition: var(--transition);
}

.header-nav a:hover,
.header-nav a.active {
    color: var(--primary-color);
    border-bottom-color: var(--primary-color);
}

.customer-content {
    flex: 1;
    padding: var(--spacing-xl) 0;
}

.customer-footer {
    background: white;
    border-top: 1px solid #eee;
    padding: var(--spacing-lg) 0;
    text-align: center;
    color: var(--secondary-color);
}

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

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

.page-header h1,
.page-header h2 {
    font-size: 24px;
    font-weight: 600;
}

.section {
    background: white;
    padding: var(--spacing-lg);
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    margin-bottom: var(--spacing-lg);
}

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

.section-header h2 {
    font-size: 18px;
    font-weight: 600;
}

/* ==================== License Cards ==================== */
.licenses-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: var(--spacing-md);
}

.license-card {
    background: white;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    overflow: hidden;
}

.license-header {
    padding: var(--spacing-md);
    background: #f8f9fa;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid #dee2e6;
}

.license-header h3 {
    font-size: 16px;
    font-weight: 600;
}

.license-body {
    padding: var(--spacing-md);
}

.license-key {
    margin-bottom: var(--spacing-md);
}

.license-key label {
    font-size: 12px;
    color: var(--secondary-color);
    margin-bottom: 4px;
}

.license-key code {
    display: block;
    background: #f8f9fa;
    padding: 8px;
    border-radius: var(--border-radius);
    font-size: 14px;
}

.license-info {
    display: grid;
    gap: var(--spacing-sm);
}

.info-item {
    display: flex;
    justify-content: space-between;
    font-size: 13px;
}

.info-item .label {
    color: var(--secondary-color);
}

.license-actions {
    padding: var(--spacing-md);
    background: #f8f9fa;
    display: flex;
    gap: var(--spacing-sm);
    border-top: 1px solid #dee2e6;
}

/* ==================== Pagination ==================== */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

/* ==================== Filter Bar ==================== */
.filter-bar {
    background: white;
    padding: var(--spacing-md);
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    margin-bottom: var(--spacing-md);
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

.search-form {
    display: flex;
    gap: var(--spacing-sm);
    flex: 1;
}

.search-form input {
    flex: 1;
}

.search-form input[type="text"].large-search {
    width: 400px;
    min-width: 300px;
}

/* ==================== Empty State ==================== */
.empty-state {
    text-align: center;
    padding: var(--spacing-xl);
    color: var(--secondary-color);
}

/* ==================== Responsive ==================== */
@media (max-width: 768px) {
    .admin-sidebar {
        width: 200px;
    }
    
    .header-nav {
        display: none;
    }
    
    .dashboard-grid,
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .page-header {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-sm);
    }
	
	.search-form input[type="text"].large-search {
        width: 100%;
    }
}