body, html {width: 100%; height: 100%; margin: 0; padding: 0}

.first-row {position: absolute;top: 0; left: 0; right: 0;}

.second-row {position: absolute; top: 50px; left: 0; right: 0; bottom: 0;}

.tab-pane {display: none;}

.tab-pane.active {display: block;}

.second-row iframe {display: block; width: 100%; height: 100%; border: none;}

.second-row img {display: block; width: 100%; height: 100%; object-fit: contain; background: #fff;}

.desktop-nav .dropdown-toggle.active {color: var(--bs-nav-tabs-link-active-color); background-color: var(--bs-nav-tabs-link-active-bg); border-color: var(--bs-nav-tabs-link-active-border-color);}

.desktop-nav .dropdown-item.active,
.desktop-nav .dropdown-item:active {color: var(--bs-dropdown-link-active-color); background-color: var(--bs-dropdown-link-active-bg);}

.nav-section-title {display: block; padding: 0.5rem 1rem; font-weight: 600;}

.nav-sublink {padding-left: 2rem;}

.floating-menu {
    position: fixed;
    top: 0.75rem;
    left: 0.75rem;
    z-index: 1030;
}

.floating-menu-button {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 3.2rem;
    height: 3.2rem;
    padding: 0;
    border: 1px solid rgba(0, 0, 0, 0.2);
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.97);
    box-shadow: 0 0.35rem 1rem rgba(0, 0, 0, 0.28);
}

.floating-menu-button:focus {
    box-shadow: 0 0 0 0.25rem rgba(13, 110, 253, 0.25), 0 0.35rem 1rem rgba(0, 0, 0, 0.28);
}

.menu-icon {
    display: inline-flex;
    flex-direction: column;
    justify-content: center;
    gap: 0.28rem;
}

.menu-icon span {
    display: block;
    width: 1.35rem;
    height: 0.14rem;
    border-radius: 999px;
    background: #222;
}

@media (max-width: 767.98px) {
    .second-row {top: 0;}
}