body {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    background-color: #f8f9fa;
}

main {
    flex: 1;
}

.navbar-brand {
    font-size: 1.25rem;
    letter-spacing: 0.5px;
}

.card {
    border: none;
    border-radius: 0.5rem;
}

.card-header {
    font-weight: 600;
    border-radius: 0.5rem 0.5rem 0 0 !important;
}

.table th {
    font-weight: 600;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.3px;
}

.btn-sm {
    padding: 0.25rem 0.5rem;
}

code {
    font-size: 0.85em;
}

@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.spin {
    animation: spin 1s linear infinite;
    display: inline-block;
}