.build-update-snackbar {
    position: fixed;
    right: 1.5rem;
    bottom: 1.5rem;
    z-index: 1085;
    display: flex;
    align-items: center;
    gap: 1rem;
    width: min(32rem, calc(100vw - 2rem));
    padding: 1rem 1.125rem;
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 1rem;
    background: rgba(15, 23, 42, 0.96);
    color: #f8fafc;
    box-shadow: 0 1.25rem 2.5rem rgba(15, 23, 42, 0.35);
    opacity: 0;
    transform: translateY(1rem);
    pointer-events: none;
    transition: opacity 0.2s ease, transform 0.2s ease;
}

.build-update-snackbar[hidden] {
    display: none !important;
}

.build-update-snackbar.is-visible {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
}

.build-update-snackbar__copy {
    display: flex;
    flex: 1 1 auto;
    flex-direction: column;
    gap: 0.2rem;
    min-width: 0;
}

.build-update-snackbar__title {
    font-size: 0.95rem;
    font-weight: 700;
    line-height: 1.2;
}

.build-update-snackbar__message {
    font-size: 0.9rem;
    line-height: 1.35;
    color: rgba(248, 250, 252, 0.88);
}

.build-update-snackbar__button {
    border: 0;
    border-radius: 999px;
    background: #f8fafc;
    color: #0f172a;
    font-size: 0.9rem;
    font-weight: 700;
    line-height: 1;
    padding: 0.8rem 1.1rem;
    white-space: nowrap;
}

.build-update-snackbar__button:hover,
.build-update-snackbar__button:focus {
    background: #e2e8f0;
    outline: none;
}

@media (max-width: 576px) {
    .build-update-snackbar {
        right: 1rem;
        bottom: 1rem;
        left: 1rem;
        width: auto;
        align-items: stretch;
        flex-direction: column;
    }

    .build-update-snackbar__button {
        width: 100%;
    }
}