.busamas-dose-button {
    position: fixed;
    top: 50%;
    right: 0;
    z-index: 9990;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem 0.625rem;
    border-radius: 0.75rem 0 0 0.75rem;
    background: #15803d;
    box-shadow: 0 14px 35px -12px rgba(15, 23, 42, 0.65);
    color: #fff;
    font-family: Inter, "Avenir Next", "Segoe UI", sans-serif;
    font-size: 0.75rem;
    font-weight: 800;
    line-height: 1;
    text-decoration: none;
    transform: translateY(-50%);
    transition: background-color 160ms ease, box-shadow 160ms ease;
}

.busamas-dose-button:hover {
    background: #166534;
    box-shadow: 0 18px 38px -12px rgba(15, 23, 42, 0.75);
    color: #fff;
}

.busamas-dose-button:focus-visible {
    outline: 3px solid #4ade80;
    outline-offset: 3px;
}

.busamas-dose-button__icon {
    width: 1.25rem;
    height: 1.25rem;
    flex: none;
}

.busamas-dose-button span {
    letter-spacing: 0.08em;
    writing-mode: vertical-rl;
    transform: rotate(180deg);
}

.busamas-header-brand-anchor {
    display: inline-flex !important;
    min-width: 0;
    align-items: center;
    gap: 0.75rem;
}

.busamas-header-brand-label {
    display: inline-block;
    flex: none;
    padding-left: 0.75rem;
    border-left: 1px solid #e2e8f0;
    color: #64748b;
    font-family: Inter, "Avenir Next", "Segoe UI", sans-serif;
    font-size: 0.65rem;
    font-weight: 800;
    line-height: 1.2;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    white-space: nowrap;
}

@media (max-width: 389px) {
    .busamas-dose-button {
        padding: 0.875rem 0.5rem;
        font-size: 0.6875rem;
    }
}

@media (max-width: 639px) {
    .busamas-header-brand-anchor {
        gap: 0.5rem;
    }

    .busamas-header-brand-label {
        padding-left: 0.5rem;
        font-size: 0.5rem;
        letter-spacing: 0.1em;
    }
}

@media print {
    .busamas-dose-button {
        display: none;
    }
}