body {
    font-family: 'Inter', sans-serif;
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    min-height: 100vh;
}

.card {
    transition: transform 0.2s ease-in-out;
}

.card:hover {
    transform: translateY(-5px);
}

.btn-primary {
    background-color: #4e73df;
    border-color: #4e73df;
    box-shadow: 0 4px 15px rgba(78, 115, 223, 0.4);
}

.btn-primary:hover {
    background-color: #2e59d9;
    border-color: #2653d4;
    transform: scale(1.05);
}

.table thead th {
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.85rem;
    letter-spacing: 1px;
    border-bottom: 2px solid #e3e6f0;
}

.table tbody td {
    padding: 1rem 0.5rem;
}

#responseMessage .alert {
    border-radius: 12px;
    margin-bottom: 0;
}