/* ===== Product Quick Navigation ===== */
.quick-nav {
    position: sticky;
    top: 0;
    z-index: 100;
    display: flex;
    justify-content: center;
    padding: 0.75rem 1rem;
    margin: 0 auto 1rem;
    width: 100%;
    box-sizing: border-box;
}

.quick-nav-inner {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    justify-content: center;
    align-items: center;
    padding: 0.6rem 1rem;
    background: linear-gradient(145deg, rgba(28, 28, 40, 0.95) 0%, rgba(20, 20, 32, 0.98) 100%);
    border: 1px solid rgba(127, 133, 228, 0.2);
    border-radius: 16px;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: 
        0 4px 20px rgba(0, 0, 0, 0.3),
        0 2px 8px rgba(127, 133, 228, 0.1),
        inset 0 1px 0 rgba(255, 255, 255, 0.05);
}

.quick-nav-item {
    width: 44px;
    height: 44px;
    border-radius: 10px;
    border: 2px solid rgba(127, 133, 228, 0.3);
    background: var(--card-bg-main, rgba(30, 30, 55, 0.85));
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 8px;
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
    overflow: hidden;
    position: relative;
}

/* Subtle gradient border effect using pseudo-element */
.quick-nav-item::before {
    content: '';
    position: absolute;
    inset: -2px;
    border-radius: 12px;
    background: linear-gradient(135deg, var(--colorLeft, #7f85e4), var(--colorRight, #a89fef));
    z-index: -1;
    opacity: 0.5;
    transition: opacity 0.25s ease;
}

.quick-nav-item:hover {
    transform: translateY(-3px) scale(1.08);
    box-shadow: 
        0 6px 16px rgba(0, 0, 0, 0.3),
        0 0 20px rgba(127, 133, 228, 0.3);
    border-color: transparent;
}

.quick-nav-item:hover::before {
    opacity: 1;
}

.quick-nav-item:active {
    transform: translateY(-1px) scale(1.02);
}

.quick-nav-item.active {
    border-color: transparent;
    box-shadow: 
        0 4px 12px rgba(0, 0, 0, 0.25),
        0 0 0 3px rgba(127, 133, 228, 0.3),
        inset 0 0 10px rgba(255, 255, 255, 0.05);
    transform: scale(1.05);
}

.quick-nav-item.active::before {
    opacity: 1;
}

.quick-nav-item img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    /* Show original icon colors */
    filter: none;
    transition: filter 0.2s ease, transform 0.2s ease;
}

.quick-nav-item:hover img {
    filter: drop-shadow(0 0 3px rgba(255, 255, 255, 0.4));
    transform: scale(1.05);
}

.quick-nav-initial {
    font-size: 1.1rem;
    font-weight: 700;
    color: #ffffff;
    text-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
}

/* Tooltip on hover */
.quick-nav-item::after {
    content: attr(title);
    position: absolute;
    bottom: calc(100% + 8px);
    left: 50%;
    transform: translateX(-50%) scale(0.8);
    padding: 0.4rem 0.8rem;
    background: rgba(20, 20, 32, 0.95);
    border: 1px solid rgba(127, 133, 228, 0.3);
    border-radius: 8px;
    font-size: 0.75rem;
    color: #e0e4f0;
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: all 0.2s ease;
    z-index: 1000;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.quick-nav-item:hover::after {
    opacity: 1;
    transform: translateX(-50%) scale(1);
}

/* Responsive adjustments */

/* Tablets and smaller desktops */
@media (max-width: 1024px) {
    .quick-nav {
        padding: 0.6rem 0.75rem;
    }
    
    .quick-nav-inner {
        padding: 0.5rem 0.85rem;
        gap: 0.45rem;
    }
    
    .quick-nav-item {
        width: 40px;
        height: 40px;
        border-radius: 9px;
        padding: 7px;
    }
    
    .quick-nav-initial {
        font-size: 1rem;
    }
}

/* Tablets portrait and large phones */
@media (max-width: 768px) {
    .quick-nav {
        padding: 0.5rem;
        margin-bottom: 0.75rem;
    }
    
    .quick-nav-inner {
        padding: 0.45rem 0.7rem;
        gap: 0.35rem;
        border-radius: 12px;
    }
    
    .quick-nav-item {
        width: 36px;
        height: 36px;
        border-radius: 8px;
        padding: 5px;
    }
    
    .quick-nav-item::before {
        border-radius: 10px;
    }
    
    .quick-nav-initial {
        font-size: 0.9rem;
    }
    
    /* Hide tooltips on touch devices */
    .quick-nav-item::after {
        display: none;
    }
    
    /* Reduce hover effects for touch */
    .quick-nav-item:hover {
        transform: translateY(-2px) scale(1.05);
    }
}

/* Small phones */
@media (max-width: 600px) {
    .quick-nav {
        position: sticky;
        top: 0;
        padding: 0.35rem 0.25rem;
        margin: 0 0 0.5rem;
        z-index: 150;
        width: 100%;
    }
    
    .quick-nav-inner {
        padding: 0.4rem 0.5rem;
        gap: 6px;
        border-radius: 12px;
        width: 100%;
        max-width: none;
        background: linear-gradient(145deg, rgba(28, 28, 40, 0.98) 0%, rgba(20, 20, 32, 0.99) 100%);
        /* Horizontales Scrollen ermöglichen */
        flex-wrap: nowrap;
        overflow-x: auto;
        overflow-y: hidden;
        -webkit-overflow-scrolling: touch;
        scrollbar-width: none; /* Firefox */
        justify-content: flex-start;
        scroll-behavior: smooth;
        scroll-snap-type: x mandatory;
    }
    
    .quick-nav-inner::-webkit-scrollbar {
        display: none; /* Chrome, Safari */
    }
    
    .quick-nav-item {
        width: 38px;
        height: 38px;
        min-width: 38px; /* Prevent shrinking */
        border-radius: 8px;
        padding: 5px;
        border-width: 1.5px;
        scroll-snap-align: center;
        /* Touch-optimiert */
        touch-action: manipulation;
        -webkit-tap-highlight-color: transparent;
    }
    
    .quick-nav-item::before {
        inset: -1.5px;
        border-radius: 10px;
    }
    
    .quick-nav-initial {
        font-size: 0.85rem;
    }
    
    /* Kein Hover auf Touch-Geräten */
    .quick-nav-item:hover {
        transform: none;
        box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
    }
    
    /* Active-State für Touch */
    .quick-nav-item:active {
        transform: scale(0.95);
        opacity: 0.9;
    }
    
    .quick-nav-item.active {
        transform: scale(1.05);
        box-shadow: 
            0 0 0 2px rgba(127, 133, 228, 0.4),
            0 4px 12px rgba(0, 0, 0, 0.3);
    }
    
    /* Scroll-Hinweis Gradient an den Seiten */
    .quick-nav::before,
    .quick-nav::after {
        content: '';
        position: absolute;
        top: 0;
        bottom: 0;
        width: 20px;
        pointer-events: none;
        z-index: 10;
        opacity: 0;
        transition: opacity 0.3s ease;
    }
    
    .quick-nav::before {
        left: 0;
        background: linear-gradient(to right, rgba(20, 20, 32, 0.9) 0%, transparent 100%);
    }
    
    .quick-nav::after {
        right: 0;
        background: linear-gradient(to left, rgba(20, 20, 32, 0.9) 0%, transparent 100%);
    }
    
    .quick-nav.can-scroll-left::before,
    .quick-nav.can-scroll-right::after {
        opacity: 1;
    }
}

/* Extra small phones */
@media (max-width: 400px) {
    .quick-nav-inner {
        padding: 0.35rem 0.4rem;
        gap: 5px;
    }
    
    .quick-nav-item {
        width: 34px;
        height: 34px;
        min-width: 34px;
        border-radius: 7px;
        padding: 4px;
    }
    
    .quick-nav-initial {
        font-size: 0.75rem;
    }
}

/* Landscape orientation on phones */
@media (max-height: 500px) and (orientation: landscape) {
    .quick-nav {
        padding: 0.3rem;
        margin-bottom: 0.4rem;
    }
    
    .quick-nav-inner {
        padding: 0.3rem 0.5rem;
        gap: 0.25rem;
    }
    
    .quick-nav-item {
        width: 30px;
        height: 30px;
        padding: 4px;
    }
}

/* High DPI screens - slightly larger touch targets */
@media (min-resolution: 2dppx) and (max-width: 768px) {
    .quick-nav-item {
        min-width: 44px;
        min-height: 44px;
    }
}