.top-button {
    position: fixed;
    display: flex;
    opacity: 0;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    bottom: 1rem;
    right: 1rem;
    width: 3rem;
    height: 3rem;
    border-radius: var(--border-radius-largest);
    padding: 1rem;
    background: var(--card-bg-color);
    color: var(--text-color-card);
    box-sizing: border-box;
    text-decoration: none;
    border: 1px solid var(--color-primary);
    box-shadow: var(--box-shadow);
    -webkit-tap-highlight-color: transparent;
    transition: opacity 0.5s, box-shadow 0.3s, transform 0.3s;
    pointer-events: none;
    z-index: 10;
}

.top-button.top-button--visible {
    display: flex;
    opacity: 1;
    pointer-events: all;
}

.top-button:hover {
    transform: translateY(-2px);
    box-shadow: var(--box-shadow-hover);
}

.top-button__arrow {
    width: 12px;
}

.top-button__text {
    display: none;
}