.bum-app-header {
    display: flex;
    justify-content: flex-end;
    padding-bottom: .35rem;
}

.bum-app-header a {
    display: inline-flex;
    align-items: center;
    gap: .4rem;
    padding: .3rem .7rem;
    border: 1px solid #658092;
    border-radius: 2rem;
    color: #fff;
    font-size: .875rem;
    line-height: 1.4;
    text-decoration: none;
}

.bum-app-header a:hover {
    color: #172a3b;
    background: #fff;
}

.bum-app-section {
    scroll-margin-top: 9rem;
    padding-block: clamp(2rem, 5vw, 4rem);
}

.bum-app-card {
    padding: clamp(1.2rem, 3vw, 2.5rem);
    border: 1px solid #dce3e8;
    border-radius: 1rem;
    background: #fff;
}

.bum-app-heading {
    display: flex;
    align-items: flex-start;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 1.3rem;
}

.bum-app-heading img {
    border-radius: .75rem;
}

.bum-app-heading h2 {
    margin-bottom: .3rem;
}

.bum-app-heading p, .bum-app-platforms p {
    margin-bottom: 0;
}

.bum-app-heading button {
    align-self: center;
}

.bum-app-heading button[hidden] {
    display: none;
}

.bum-app-platforms {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: .75rem;
}

.bum-app-platforms > div {
    padding: .9rem 1rem;
    background: #f5f7f9;
    border-radius: .65rem;
}

.bum-app-platforms h3 {
    font-size: 1rem;
    margin-bottom: .35rem;
}

@media (max-width: 767.98px) {
    .bum-app-platforms { grid-template-columns: 1fr; }
}

@media (display-mode: standalone) {
    .bum-app-header, .bum-app-section { display: none; }
}