/**
 * Bouton flottant « Retour » — haut à gauche
 * Mobile : sous nav.nav-planete-gateau
 * Desktop (≥800px) : sous section.section1 (évite le bouton MENU)
 * Palette Yaye Maty
 */

.floating-back-btn {
    position: fixed;
    top: calc(14px + env(safe-area-inset-top, 0px));
    left: calc(14px + env(safe-area-inset-left, 0px));
    right: auto;
    z-index: 10012;
    width: 46px;
    height: 46px;
    border: none;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    color: #ffffff;
    font-size: 18px;
    background: linear-gradient(135deg, #F25C19 0%, #c26638 100%);
    box-shadow: 0 4px 16px rgba(107, 47, 32, 0.28);
    transition: transform 0.25s ease, box-shadow 0.25s ease, opacity 0.25s ease, top 0.2s ease;
}

.floating-back-btn:hover {
    transform: scale(1.06);
    box-shadow: 0 6px 22px rgba(107, 47, 32, 0.34);
}

.floating-back-btn:active {
    transform: scale(0.96);
}

.floating-back-btn:focus-visible {
    outline: 2px solid #918a44;
    outline-offset: 2px;
}

/* Mobile / tablette : sous la barre nav (~100px) */
html.has-store-nav:not(.has-store-nav-desktop) .floating-back-btn {
    top: calc(108px + env(safe-area-inset-top, 0px));
}

/* Desktop : sous section1 (nav ~80px + section1 ~69px) */
@media (min-width: 800px) {
    html.has-store-nav.has-store-nav-desktop .floating-back-btn {
        top: calc(180px + env(safe-area-inset-top, 0px));
    }
}

@media (max-width: 992px) {
    html.has-bottom-nav:not(.has-store-nav) .floating-back-btn {
        top: calc(10px + env(safe-area-inset-top, 0px));
        left: calc(10px + env(safe-area-inset-left, 0px));
    }

    html.has-store-nav .floating-back-btn {
        left: calc(10px + env(safe-area-inset-left, 0px));
    }
}

@media (max-width: 600px) {
    .floating-back-btn {
        width: 42px;
        height: 42px;
        font-size: 16px;
    }

    html.has-store-nav:not(.has-store-nav-desktop) .floating-back-btn {
        top: calc(104px + env(safe-area-inset-top, 0px));
    }
}

@media (max-width: 480px) {
    html.has-store-nav:not(.has-store-nav-desktop) .floating-back-btn {
        top: calc(96px + env(safe-area-inset-top, 0px));
    }
}