body {
    background-color: #f5f5f5;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.card {
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.card-header {
    background-color: #f8f9fa;
    border-bottom: 1px solid #dee2e6;
}

.result-card {
    background-color: #fff;
    border-radius: 8px;
    padding: 1rem;
    border: 1px solid #dee2e6;
}

.result-card:hover {
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    transition: box-shadow 0.3s ease;
}

h3 {
    margin-bottom: 20px;
    font-weight: bold;
}

h4 {
    margin: 20px 0 10px 0;
    font-weight: bold;
}

.birthday-item {
    margin-bottom: 8px;
}

.text-muted {
    color: #6c757d;
}

.container {
    flex: 1;
    margin-bottom: 0.5rem;
}

.footer {
    background-color: #f8f9fa;
    border-top: 1px solid #dee2e6;
    padding: 0.75rem 0;
    margin-top: auto;
}

.footer p {
    color: #6c757d;
    font-size: 0.9rem;
    margin: 0;
    line-height: 1.2;
}

.footer a {
    color: #0d6efd;
    text-decoration: none;
}

.footer a:hover {
    text-decoration: underline;
}