kbd {
    display: inline-block;
    padding: 0.4rem 0.8rem;
    margin: 0 0.2rem;
    font-family: 'Helvetica Neue', Arial, sans-serif;
    font-weight: 600;
    font-size: 0.95rem;
    color: #111;
    background: #f5f5f5;
    border: 1px solid #ccc;
    border-radius: 6px;
    box-shadow: 0 3px 6px rgba(0, 0, 0, 0.15);
    text-align: center;
    vertical-align: middle;
    transition: all 0.2s ease;
}

kbd:hover {
    background: #e0e0e0;
    box-shadow: 0 5px 12px rgba(0, 0, 0, 0.2);
    transform: translateY(-2px);
}