.dm-back-to-top {
    position: fixed;
    right: 22px;
    bottom: 22px;
    z-index: 1035;
    display: inline-flex;
    width: 48px;
    height: 48px;
    align-items: center;
    justify-content: center;
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    background: #173f68;
    box-shadow: 0 8px 24px rgba(15, 23, 42, 0.2);
    color: #fff;
    font-size: 1.5rem;
    font-weight: 700;
    line-height: 1;
    opacity: 0.94;
    transition: background-color 0.2s ease, opacity 0.2s ease, transform 0.2s ease;
}

.dm-back-to-top[hidden] {
    display: none !important;
}

.dm-back-to-top--with-support {
    bottom: 92px;
}

.dm-back-to-top:hover,
.dm-back-to-top:focus-visible {
    background: #0f3153;
    color: #fff;
    opacity: 1;
    transform: translateY(-2px);
}

.dm-back-to-top:focus-visible {
    outline: 3px solid rgba(59, 130, 246, 0.45);
    outline-offset: 2px;
}

@media (max-width: 767.98px) {
    .dm-back-to-top {
        right: 12px;
        bottom: 12px;
        width: 44px;
        height: 44px;
    }

    .dm-back-to-top--with-support {
        bottom: 78px;
    }
}

@media (prefers-reduced-motion: reduce) {
    .dm-back-to-top {
        transition: none;
    }
}