/* Phase 15E */

.shelf-placeholder {
    width: 70% !important;
    aspect-ratio: 2 / 3;
    margin: auto;
}

.back-to-top {
    position: fixed;
    right: 24px;
    bottom: 24px;
    z-index: 1200;
    width: 52px;
    height: 52px;
    display: grid;
    place-items: center;
    border: 1px solid #d4a437;
    border-radius: 50%;
    background: rgba(7, 21, 34, .94);
    color: #fff;
    box-shadow: 0 10px 24px rgba(0,0,0,.25);
    font-size: 1.55rem;
    font-weight: 900;
    line-height: 1;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transform: translateY(12px);
    transition:
        opacity .18s ease,
        visibility .18s ease,
        transform .18s ease,
        background .18s ease;
}

.back-to-top.is-visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover,
.back-to-top:focus-visible {
    background: #10263f;
}

@media (max-width: 700px) {
    .back-to-top {
        right: 16px;
        bottom: calc(16px + env(safe-area-inset-bottom));
        width: 56px;
        height: 56px;
        font-size: 1.7rem;
    }
}

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