/* ==========================================================================
   QUANTITY BUTTONS
   ========================================================================== */

.qty-wrapper {
    display: inline-flex;
    align-items: center;
    border: 2px solid var(--color-gray-300);
    border-radius: var(--border-radius-md);
    overflow: hidden;
    height: 48px;
}

.qty-btn {
    background: none;
    border: none;
    width: 44px;
    height: 100%;
    font-size: 20px;
    font-weight: 600;
    color: var(--color-gray-700);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background-color var(--transition-fast), color var(--transition-fast);
    -webkit-tap-highlight-color: transparent;
    flex-shrink: 0;
    line-height: 1;
}

.qty-btn:hover {
    background-color: var(--color-gray-100);
    color: var(--color-gray-900);
}

.qty-btn:active {
    background-color: var(--color-gray-300);
}

.qty-wrapper input.qty {
    border: none !important;
    border-left: 1px solid var(--color-gray-300) !important;
    border-right: 1px solid var(--color-gray-300) !important;
    border-radius: 0 !important;
    box-shadow: none !important;
    width: 56px !important;
    height: 100% !important;
    text-align: center;
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-semibold);
    padding: 0 !important;
}

/* ==========================================================================
   VARIATION BUTTONS
   ========================================================================== */

.variation-btn-group {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
    margin-bottom: var(--space-3);
}

.variation-btn {
    padding: var(--space-2) var(--space-4);
    min-width: 48px;
    min-height: 44px;
    background-color: var(--color-white);
    border: 2px solid var(--color-gray-300);
    border-radius: var(--border-radius-md);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    color: var(--color-gray-700);
    cursor: pointer;
    transition: all var(--transition-fast);
    -webkit-tap-highlight-color: transparent;
    line-height: 1;
}

.variation-btn:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
}

.variation-btn.active {
    background-color: var(--color-primary);
    border-color: var(--color-primary);
    color: var(--color-white);
    font-weight: var(--font-weight-semibold);
}

.variation-btn:disabled,
.variation-btn.out-of-stock {
    opacity: 0.4;
    cursor: not-allowed;
    text-decoration: line-through;
}

/* ==========================================================================
   BACK TO TOP BUTTON
   ========================================================================== */

.back-to-top {
    position: fixed;
    bottom: calc(var(--mobile-sticky-bar-height) + 16px);
    right: 16px;
    z-index: 500;
    width: 44px;
    height: 44px;
    background-color: var(--color-gray-900);
    color: var(--color-white);
    border: none;
    border-radius: 50%;
    font-size: 18px;
    cursor: pointer;
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition-normal), transform var(--transition-normal);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-md);
    -webkit-tap-highlight-color: transparent;
}

.back-to-top.visible {
    opacity: 1;
    pointer-events: all;
}

.back-to-top:hover {
    background-color: var(--color-primary);
    transform: translateY(-2px);
}

@media (min-width: 768px) {
    .back-to-top {
        bottom: 24px;
        right: 24px;
    }
}

/* ==========================================================================
   MOBILE NAVIGATION BOTTOM BAR (optional — uncomment if needed)
   ========================================================================== */

/*
.stickitauto-bottom-nav {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 900;
    background-color: var(--color-white);
    border-top: 1px solid var(--color-gray-300);
    display: flex;
    height: var(--mobile-bottom-nav-height);
    padding-bottom: env(safe-area-inset-bottom);
}

@media (min-width: 768px) {
    .stickitauto-bottom-nav {
        display: none;
    }
}

.bottom-nav-item {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 4px;
    color: var(--color-gray-500);
    font-size: 10px;
    font-weight: 500;
    text-decoration: none;
    transition: color var(--transition-fast);
    -webkit-tap-highlight-color: transparent;
}

.bottom-nav-item.active,
.bottom-nav-item:hover {
    color: var(--color-primary);
}

.bottom-nav-item svg {
    width: 22px;
    height: 22px;
}
*/

/* ==========================================================================
   LOADING STATES
   ========================================================================== */

.stickitauto-loading {
    position: relative;
    pointer-events: none;
}

.stickitauto-loading::after {
    content: '';
    position: absolute;
    inset: 0;
    background-color: rgba(255,255,255,0.7);
    border-radius: inherit;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Spinner */
@keyframes spin {
    to { transform: rotate(360deg); }
}

.spinner {
    width: 20px;
    height: 20px;
    border: 2px solid var(--color-gray-300);
    border-top-color: var(--color-primary);
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
    display: inline-block;
}

/* ==========================================================================
   PRODUCT BADGES
   ========================================================================== */

.badge {
    display: inline-flex;
    align-items: center;
    padding: 2px var(--space-2);
    border-radius: var(--border-radius-sm);
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-bold);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    line-height: 1.4;
}

.badge-sale {
    background-color: var(--color-primary);
    color: var(--color-white);
}

.badge-new {
    background-color: var(--color-gray-900);
    color: var(--color-white);
}

.badge-bestseller {
    background-color: var(--color-warning-bg);
    color: var(--color-warning);
}

.badge-stock-low {
    background-color: var(--color-warning-bg);
    color: var(--color-warning);
}

/* ==========================================================================
   SEARCH BAR — Mobile
   ========================================================================== */

.stickitauto-search-bar {
    padding: var(--space-3) var(--space-4);
    background-color: var(--color-white);
    border-bottom: 1px solid var(--color-gray-300);
}

.stickitauto-search-bar .search-input-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

.stickitauto-search-bar input[type="search"] {
    width: 100%;
    padding: var(--space-3) var(--space-4) var(--space-3) 40px;
    border: 2px solid var(--color-gray-300);
    border-radius: var(--border-radius-full);
    font-size: var(--font-size-base);
    background-color: var(--color-gray-100);
    color: var(--color-gray-900);
    min-height: 44px;
    transition: border-color var(--transition-fast), background-color var(--transition-fast);
}

.stickitauto-search-bar input[type="search"]:focus {
    outline: none;
    border-color: var(--color-primary);
    background-color: var(--color-white);
    box-shadow: 0 0 0 3px rgba(232,0,29,0.12);
}

.stickitauto-search-bar .search-icon {
    position: absolute;
    left: var(--space-3);
    color: var(--color-gray-500);
    pointer-events: none;
}

/* ==========================================================================
   EMPTY STATES
   ========================================================================== */

.stickitauto-empty-state {
    text-align: center;
    padding: var(--space-12) var(--space-4);
    color: var(--color-gray-500);
}

.stickitauto-empty-state svg {
    width: 48px;
    height: 48px;
    margin: 0 auto var(--space-4);
    display: block;
    color: var(--color-gray-300);
}

.stickitauto-empty-state h3 {
    font-size: var(--font-size-lg);
    color: var(--color-gray-700);
    margin-bottom: var(--space-2);
}

.stickitauto-empty-state p {
    font-size: var(--font-size-sm);
    margin-bottom: var(--space-6);
}

/* ==========================================================================
   SAFE AREA INSETS (iPhone notch / home indicator)
   ========================================================================== */

.stickitauto-sticky-atc {
    padding-bottom: calc(var(--space-3) + env(safe-area-inset-bottom));
}

.stickitauto-cart-drawer {
    padding-bottom: env(safe-area-inset-bottom);
}