body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
}

.card {
    border: none;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.card-header {
    border-radius: 15px 15px 0 0 !important;
    padding: 1.5rem;
}

.btn {
    border-radius: 8px;
    padding: 0.75rem 1.5rem;
    font-weight: 500;
    transition: all 0.3s ease;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

.form-control {
    border-radius: 8px;
    border: 2px solid #e9ecef;
    padding: 0.75rem 1rem;
    transition: all 0.3s ease;
}

.form-control:focus {
    border-color: #667eea;
    box-shadow: 0 0 0 0.2rem rgba(102, 126, 234, 0.25);
}

.navbar {
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}



.sidebar .nav-link {
    color: rgba(255, 255, 255, 0.8);
    padding: 1rem 1.5rem;
    margin: 0.25rem 0;
    border-radius: 8px;
    transition: all 0.3s ease;
}

.sidebar .nav-link:hover,
.sidebar .nav-link.active {
    color: white;
    background: rgba(255, 255, 255, 0.1);
    transform: translateX(5px);
}

.sidebar .nav-link i {
    margin-right: 0.75rem;
    width: 20px;
    text-align: center;
}

.main-content {
    background: #f8f9fa;
    min-height: 100vh;
    padding: 2rem;
}

.stats-card {
    background: white;
    border-radius: 15px;
    padding: 1.5rem;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
    border-left: 4px solid #667eea;
}

.stats-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
}

.stats-number {
    font-size: 2.5rem;
    font-weight: bold;
    color: #667eea;
}

.stats-label {
    color: #6c757d;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.table {
    background: white;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
}

.table thead th {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    padding: 1rem;
    font-weight: 500;
}

.table tbody td {
    padding: 1rem;
    border-color: #f1f3f4;
    vertical-align: middle;
}

.badge {
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-weight: 500;
}

.badge-success {
    background: linear-gradient(135deg, #28a745, #20c997);
}

.badge-danger {
    background: linear-gradient(135deg, #dc3545, #fd7e14);
}

.badge-warning {
    background: linear-gradient(135deg, #ffc107, #fd7e14);
}

.badge-secondary {
    background: linear-gradient(135deg, #6c757d, #495057);
}

.alert {
    border: none;
    border-radius: 10px;
    padding: 1rem 1.5rem;
}

.modal-content {
    border: none;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.modal-header {
    border-bottom: 1px solid #f1f3f4;
    border-radius: 15px 15px 0 0;
}

.modal-footer {
    border-top: 1px solid #f1f3f4;
    border-radius: 0 0 15px 15px;
}

.page-title {
    color: #495057;
    font-weight: 600;
    margin-bottom: 2rem;
}

.breadcrumb {
    background: transparent;
    padding: 0;
    margin-bottom: 1rem;
}

.breadcrumb-item a {
    color: #667eea;
    text-decoration: none;
}

.breadcrumb-item.active {
    color: #6c757d;
}

.license-key {
    font-family: 'Courier New', monospace;
    background: #f8f9fa;
    padding: 0.5rem;
    border-radius: 5px;
    border: 1px solid #dee2e6;
    font-size: 0.9rem;
}

.status-active {
    color: #28a745;
    font-weight: bold;
}

.status-inactive {
    color: #dc3545;
    font-weight: bold;
}

.status-expired {
    color: #ffc107;
    font-weight: bold;
}

.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: #fff;
    animation: spin 1s ease-in-out infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.fade-in {
    animation: fadeIn 0.5s ease-in;
}

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

.slide-in {
    animation: slideIn 0.3s ease-out;
}

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

.sidebar {
    position: fixed;
    top: 0;
    left: 0;
    width: 250px;
    height: 100vh;
    z-index: 1000;
    overflow-y: auto;
    background: linear-gradient(180deg, #667eea 0%, #764ba2 100%);
    box-shadow: 2px 0 10px rgba(0, 0, 0, 0.1);
}

.main-content {
    margin-left: 250px;
    padding: 2rem;
}

@media (max-width: 768px) {
    .sidebar {
        left: -250px;
        transition: left 0.3s ease;
    }
    
    .sidebar.show {
        left: 0;
    }
    
    .main-content {
        margin-left: 0;
        padding: 1rem;
    }
    
    .stats-card {
        margin-bottom: 1rem;
    }
    
    .table-responsive {
        border-radius: 15px;
    }
}

.copy-btn {
    background: none;
    border: none;
    color: #667eea;
    cursor: pointer;
    padding: 0.25rem;
    border-radius: 3px;
    transition: all 0.2s ease;
}

.copy-btn:hover {
    background: #667eea;
    color: white;
}

.tooltip {
    font-size: 0.8rem;
}

.progress {
    height: 8px;
    border-radius: 10px;
    background: #f1f3f4;
}

.progress-bar {
    border-radius: 10px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}