body {
    background-color: #f8f9fa;
}

.card {
    box-shadow: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075);
    margin-bottom: 1.5rem;
}

.card-header {
    font-weight: 600;
}

.table th {
    font-weight: 600;
    background-color: #f8f9fa;
}

.navbar-brand {
    font-weight: 700;
}

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

.btn {
    border-radius: 0.375rem;
}

.form-control, .form-select {
    border-radius: 0.375rem;
}

.login-container {
    max-width: 400px;
    margin: 100px auto;
}

.stats-card {
    transition: transform 0.2s;
}

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