/**
 * Floating storefront actions — back to top, menu FAB, cart FAB.
 * Mobile: menu bottom-left, back-to-top bottom-right, cart mid-right (independent positions).
 */

:root {
    --shop-float-bottom-base: max(1rem, env(safe-area-inset-bottom, 0px));
    --shop-float-action-size: 3rem;
}

/* —— Back to top (synced scroll reveal with menu FAB) —— */
.shop-back-to-top {
    position: fixed;
    bottom: var(--shop-float-bottom-base);
    z-index: 1040;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transform: translateY(calc(100% + 0.75rem));
    transition:
        opacity var(--shop-header-fab-duration, 0.42s) var(--shop-header-fab-ease, cubic-bezier(0.22, 1, 0.36, 1)),
        transform var(--shop-header-fab-duration, 0.42s) var(--shop-header-fab-ease, cubic-bezier(0.22, 1, 0.36, 1)),
        visibility 0s linear var(--shop-header-fab-duration, 0.42s),
        background-color 0.15s ease;
}

.shop-back-to-top.is-visible {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transform: translateY(0);
    transition:
        opacity var(--shop-header-fab-duration, 0.42s) var(--shop-header-fab-ease, cubic-bezier(0.22, 1, 0.36, 1)),
        transform var(--shop-header-fab-duration, 0.42s) var(--shop-header-fab-ease, cubic-bezier(0.22, 1, 0.36, 1)),
        visibility 0s linear 0s,
        background-color 0.15s ease;
}

.shop-back-to-top.is-visible:hover {
    transform: translateY(-2px);
}

/* —— Floating cart (visible only when cart has items) —— */
:root {
    --shop-cart-fab-duration: 0.4s;
    --shop-cart-fab-ease: cubic-bezier(0.22, 1, 0.36, 1);
}

.shop-body:has(.shop-page--cart) .shop-cart-fab,
.shop-body:has(.shop-page--checkout) .shop-cart-fab {
    display: none !important;
}

.shop-cart-fab {
    position: fixed;
    z-index: 1042;
    right: max(1rem, env(safe-area-inset-right, 0px));
    top: 50%;
    bottom: auto;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: var(--shop-float-action-size);
    height: var(--shop-float-action-size);
    padding: 0;
    border: 0;
    border-radius: 999px;
    background: var(--shop-color-primary);
    color: #fff;
    cursor: pointer;
    box-shadow: var(--shop-shadow-md);
    text-decoration: none;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transform: translateY(-50%) scale(0.82);
    transition:
        opacity var(--shop-cart-fab-duration) var(--shop-cart-fab-ease),
        transform var(--shop-cart-fab-duration) var(--shop-cart-fab-ease),
        visibility 0s linear var(--shop-cart-fab-duration),
        background-color 0.15s ease,
        box-shadow 0.15s ease;
}

.shop-cart-fab.is-visible {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transform: translateY(-50%) scale(1);
    transition:
        opacity var(--shop-cart-fab-duration) var(--shop-cart-fab-ease),
        transform var(--shop-cart-fab-duration) var(--shop-cart-fab-ease),
        visibility 0s linear 0s,
        background-color 0.15s ease,
        box-shadow 0.15s ease;
}

.shop-cart-fab.is-visible:hover,
.shop-cart-fab.is-visible:focus-visible {
    background: var(--shop-color-primary-active);
    color: #fff;
    transform: translateY(calc(-50% - 2px)) scale(1);
}

.shop-cart-fab.is-visible:hover .shop-cart-fab__icon,
.shop-cart-fab.is-visible:focus-visible .shop-cart-fab__icon {
    stroke: #fff;
}

.shop-cart-fab.is-added {
    animation: shop-cart-fab-pop 0.55s var(--shop-cart-fab-ease);
}

.shop-cart-fab.is-added .shop-cart-fab__badge {
    animation: shop-cart-fab-badge-pop 0.55s var(--shop-cart-fab-ease);
}

@keyframes shop-cart-fab-badge-pop {
    0% {
        transform: scale(1);
    }
    45% {
        transform: scale(1.2);
    }
    100% {
        transform: scale(1);
    }
}

.shop-cart-fab:focus-visible {
    outline: 3px solid var(--shop-color-primary-soft, rgba(26, 77, 62, 0.35));
    outline-offset: 2px;
}

.shop-cart-fab[hidden] {
    display: none !important;
}

.shop-cart-fab__icon {
    display: block;
    color: #fff;
    stroke: #fff;
}

.shop-cart-fab__badge {
    position: absolute;
    top: -0.2rem;
    right: -0.2rem;
    min-width: 1.35rem;
    height: 1.35rem;
    padding: 0 0.3rem;
    border-radius: 999px;
    background: var(--shop-color-accent, #c45c26);
    color: #fff;
    font-size: 0.7rem;
    font-weight: var(--shop-font-weight-bold);
    line-height: 1.35rem;
    text-align: center;
}

.shop-cart-fab__badge[hidden] {
    display: none;
}

@media (max-width: 991.98px) {
    .shop-header-fab--mobile {
        bottom: var(--shop-float-bottom-base);
    }

    .shop-back-to-top {
        right: max(1rem, env(safe-area-inset-right, 0px));
        left: auto;
    }
}

@media (min-width: 992px) {
    .shop-cart-fab {
        right: max(1.25rem, env(safe-area-inset-right, 0px));
    }
}

@keyframes shop-cart-fab-pop {
    0% {
        transform: translateY(-50%) scale(1);
    }
    40% {
        transform: translateY(calc(-50% - 4px)) scale(1.1);
    }
    100% {
        transform: translateY(-50%) scale(1);
    }
}

/* —— Add-to-cart toast —— */
.shop-toast-root {
    position: fixed;
    left: 50%;
    bottom: calc(var(--shop-float-bottom-base) + var(--shop-float-action-size) + var(--shop-space-4));
    z-index: 1050;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--shop-space-2);
    width: min(24rem, calc(100vw - 2rem));
    transform: translateX(-50%);
    pointer-events: none;
}

@media (min-width: 992px) {
    .shop-toast-root {
        left: auto;
        right: max(1.25rem, env(safe-area-inset-right, 0px));
        bottom: auto;
        top: calc(50% + 2.5rem);
        transform: none;
        align-items: flex-end;
    }
}

.shop-toast {
    width: 100%;
    margin: 0;
    padding: var(--shop-space-3) var(--shop-space-4);
    border-radius: var(--shop-radius-md);
    background: var(--shop-color-surface);
    border: 1px solid var(--shop-color-border-subtle);
    box-shadow: var(--shop-shadow-md);
    font-size: var(--shop-font-size-sm);
    color: var(--shop-color-text);
    pointer-events: auto;
    opacity: 0;
    transform: translateY(0.5rem);
    transition:
        opacity var(--shop-transition-ui),
        transform var(--shop-transition-ui);
}

.shop-toast.is-visible {
    opacity: 1;
    transform: translateY(0);
}

.shop-toast--success {
    border-color: var(--shop-color-success-border, #b8d4c4);
    background: var(--shop-color-success-bg, #eef6f0);
}

.shop-toast--error {
    border-color: var(--shop-color-danger-border, #e8c4c4);
    background: var(--shop-color-danger-bg, #fdf0f0);
}

@media (prefers-reduced-motion: reduce) {
    .shop-back-to-top {
        transition: opacity 0.15s ease, visibility 0.15s ease;
        transform: none;
    }

    .shop-back-to-top:not(.is-visible),
    .shop-back-to-top.is-visible,
    .shop-back-to-top.is-visible:hover {
        transform: none;
    }

    .shop-cart-fab {
        transition: opacity 0.15s ease, visibility 0.15s ease;
        transform: none;
        animation: none;
    }

    .shop-cart-fab.is-visible {
        transform: none;
    }

    .shop-cart-fab.is-added,
    .shop-cart-fab.is-added .shop-cart-fab__badge {
        animation: none;
    }

    .shop-toast {
        transition: none;
    }
}