/* K-pop Groups Navigation - Collapsible Design */

.kpop-groups-navigation {
    background: transparent;
    margin: 0 15px 30px 15px;
    position: relative;
    overflow: visible;
    transition: all 0.3s ease;
    box-sizing: border-box;
    font-family: "Open Sans Hebrew", Sans-serif;
    font-weight: 500;
}

/* Desktop expand button */
.kpop-expand-button {
    display: none;
    width: 100%;
    padding: 10px;
    background: #f8f9fa;
    border: none;
    border-top: 1px solid #e0e0e0;
    border-radius: 0 0 8px 8px;
    font-size: 14px;
    font-weight: 500;
    color: #666;
    cursor: pointer;
    transition: all 0.2s ease;
    text-align: center;
    font-family: "Open Sans Hebrew", Sans-serif;
    margin-top: -1px;
}

.kpop-expand-button:hover {
    background: #ec297a;
    color: #fff;
}

.kpop-expand-button svg {
    width: 16px;
    height: 16px;
    margin-left: 5px;
    vertical-align: middle;
    transition: transform 0.3s ease;
}

.kpop-expand-button.expanded svg {
    transform: rotate(180deg);
}

@media (min-width: 769px) {
    .kpop-expand-button {
        display: block;
    }
}

/* Mobile expand button adjustments */
@media (max-width: 768px) {
    .kpop-expand-button {
        font-size: 13px;
        padding: 8px;
    }
    
    .kpop-expand-button svg {
        width: 14px;
        height: 14px;
    }
}

/* Filter Buttons */
.kpop-filter-buttons {
    display: flex;
    gap: 8px;
    margin-bottom: 15px;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
}

.kpop-filter-btn {
    padding: 8px 18px;
    background: #f8f9fa;
    border: 1px solid #e0e0e0;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 500;
    color: #666;
    cursor: pointer;
    transition: all 0.2s ease;
    white-space: nowrap;
    font-family: "Open Sans Hebrew", Sans-serif;
}

.kpop-filter-btn:hover {
    background: #fff;
    border-color: #ec297a;
    color: #ec297a;
}

.kpop-filter-btn.active {
    background: #ec297a;
    color: #fff;
    border-color: #ec297a;
}

.kpop-filter-btn.active:hover {
    background: #d61f68;
    border-color: #d61f68;
}

/* Header Section */
.kpop-groups-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 15px 0;
    cursor: pointer;
    user-select: none;
    background: transparent;
    transition: opacity 0.3s ease;
}

.kpop-groups-header:hover {
    opacity: 0.8;
}

.kpop-groups-title {
    margin: 0;
    font-size: 18px;
    font-weight: 500;
    color: #333;
    display: flex;
    align-items: center;
    gap: 10px;
    font-family: "Open Sans Hebrew", Sans-serif;
}


/* Toggle Button */
.kpop-groups-toggle {
    background: transparent;
    border: none;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    padding: 0;
    position: relative;
}

/* Animated Hamburger */
.hamburger {
    width: 24px;
    height: 20px;
    position: relative;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.hamburger-line {
    display: block;
    height: 3px;
    width: 100%;
    background: #333;
    border-radius: 2px;
    transition: all 0.3s ease;
    position: absolute;
    left: 0;
}

.hamburger-line:nth-child(1) {
    top: 0;
}

.hamburger-line:nth-child(2) {
    top: 50%;
    transform: translateY(-50%);
}

.hamburger-line:nth-child(3) {
    bottom: 0;
}

/* Hamburger Active State (X) */
.hamburger.active .hamburger-line:nth-child(1) {
    top: 50%;
    transform: translateY(-50%) rotate(45deg);
}

.hamburger.active .hamburger-line:nth-child(2) {
    opacity: 0;
}

.hamburger.active .hamburger-line:nth-child(3) {
    bottom: 50%;
    transform: translateY(50%) rotate(-45deg);
}

.kpop-groups-toggle:hover .hamburger-line {
    background: #ec297a;
}

/* Preview Section Wrapper */
.kpop-groups-preview-wrapper {
    position: relative;
    background: transparent;
    opacity: 1;
    transition: opacity 0.3s ease;
    overflow: hidden;
    height: 50px;
    display: flex;
    align-items: center;
}

/* Preview Section */
.kpop-groups-preview {
    display: flex;
    flex-wrap: nowrap;
    gap: 8px;
    padding: 15px 40px;
    overflow-x: auto;
    overflow-y: hidden;
    position: relative;
    cursor: grab;
    scrollbar-width: none;
    -ms-overflow-style: none;
    -webkit-overflow-scrolling: touch;
}

/* Mobile */
@media (max-width: 768px) {
    .kpop-groups-preview {
        padding: 10px 20px;
        gap: 6px;
    }
}

.kpop-groups-preview::-webkit-scrollbar {
    display: none;
}

.kpop-groups-preview:active {
    cursor: grabbing;
}


/* Gradient Indicators */
.preview-gradient-left,
.preview-gradient-right {
    position: absolute;
    top: 0;
    bottom: 0;
    width: 40px;
    pointer-events: none;
    z-index: 2;
    transition: opacity 0.3s ease;
}

.preview-gradient-left {
    left: 0;
    background: linear-gradient(to right, #fff 0%, transparent 100%);
    opacity: 0;
}

.preview-gradient-right {
    right: 0;
    background: linear-gradient(to left, #fff 0%, transparent 100%);
    opacity: 1;
}

/* Preview Group Items */
.preview-group {
    flex-shrink: 0;
    display: inline-flex;
    align-items: center;
    padding: 4px 12px;
    background: #f8f9fa;
    border: 1px solid #e0e0e0;
    border-radius: 6px;
    font-size: 12px;
    color: #333;
    font-weight: 500;
    white-space: nowrap;
    text-decoration: none;
    transition: all 0.2s ease;
    cursor: pointer;
    height: 28px;
    -webkit-tap-highlight-color: transparent;
    font-family: "Open Sans Hebrew", Sans-serif;
}

.preview-group:hover {
    background: #fff;
    border-color: #ec297a;
    color: #ec297a;
    transform: none;
}

.preview-group.active {
    background: #ec297a;
    color: #fff;
    border-color: #ec297a;
}

.preview-group.active:hover {
    background: #d61f68;
    border-color: #d61f68;
}

.preview-more {
    flex-shrink: 0;
    display: inline-flex;
    align-items: center;
    padding: 4px 12px;
    background: #ec297a;
    color: #fff;
    border: 1px solid #ec297a;
    border-radius: 6px;
    font-size: 12px;
    font-weight: 500;
    white-space: nowrap;
    height: 28px;
    font-family: "Open Sans Hebrew", Sans-serif;
}

/* Content Section */
.kpop-groups-content {
    overflow: hidden;
    background: #f8f9fa;
    margin: 0;
    box-sizing: border-box;
    border-radius: 8px 8px 0 0;
    padding: 15px;
    margin-top: 10px;
}

/* Desktop - partial view with expand button */
@media (min-width: 769px) {
    .kpop-groups-content {
        display: block !important;
        position: relative;
        max-height: 65px;
        overflow: hidden;
        transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    }
    
    .kpop-groups-content.expanded {
        max-height: none;
    }
    
    /* Gradient overlay for collapsed state */
    .kpop-groups-content::after {
        content: '';
        position: absolute;
        bottom: 0;
        left: 0;
        right: 0;
        height: 30px;
        background: linear-gradient(to bottom, transparent 0%, #f8f9fa 100%);
        pointer-events: none;
        opacity: 1;
        transition: opacity 0.3s ease;
    }
    
    .kpop-groups-content.expanded::after {
        opacity: 0;
    }
    
    /* Hide toggle button and preview on desktop */
    .kpop-groups-header {
        display: none;
    }
    
    .kpop-groups-preview-wrapper {
        display: none;
    }
}

/* Mobile - same as desktop */
@media (max-width: 768px) {
    .kpop-groups-content {
        display: block !important;
        position: relative;
        max-height: 100px;
        overflow: hidden;
        transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1);
        padding: 15px;
        border-radius: 8px 8px 0 0;
    }
    
    .kpop-groups-content.expanded {
        max-height: 400px;
        overflow-y: auto;
        -webkit-overflow-scrolling: touch;
    }
    
    /* Gradient overlay for collapsed state */
    .kpop-groups-content::after {
        content: '';
        position: absolute;
        bottom: 0;
        left: 0;
        right: 0;
        height: 30px;
        background: linear-gradient(to bottom, transparent 0%, #f8f9fa 100%);
        pointer-events: none;
        opacity: 1;
        transition: opacity 0.3s ease;
    }
    
    .kpop-groups-content.expanded::after {
        opacity: 0;
    }
    
    /* Hide header and preview on mobile too */
    .kpop-groups-header {
        display: none;
    }
    
    .kpop-groups-preview-wrapper {
        display: none;
    }
    
    /* Show expand button on mobile */
    .kpop-expand-button {
        display: block;
    }
}

/* Groups List */
.kpop-groups-list {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin: 0;
    padding: 0;
}

.kpop-group-item {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 6px 14px;
    background: #f8f9fa;
    border: 1px solid #e0e0e0;
    border-radius: 6px;
    text-decoration: none;
    color: #333;
    font-size: 13px;
    font-weight: 500;
    transition: all 0.2s ease;
    text-align: center;
    min-height: 32px;
    white-space: nowrap;
    position: relative;
    font-family: "Open Sans Hebrew", Sans-serif;
}

.star-badge {
    color: #ffd700;
    margin-left: 4px;
    font-size: 14px;
}

.kpop-group-item:hover {
    background: #fff;
    border-color: #ec297a;
    box-shadow: 0 2px 8px rgba(236,41,122,0.1);
}

.kpop-group-item.active {
    background: #ec297a;
    color: #fff;
    border-color: #ec297a;
}

.kpop-group-item.active:hover {
    background: #d61f68;
    border-color: #d61f68;
}

.group-name {
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* Expanded State Animations */
.kpop-groups-navigation[data-collapsed="false"] .kpop-groups-header {
    margin-bottom: 10px;
}

/* Tablet Styles */
@media (max-width: 1024px) {
    .kpop-groups-list {
        gap: 6px;
    }
    
    .kpop-group-item {
        padding: 6px 12px;
        font-size: 12px;
    }
}

/* Mobile Styles */
@media (max-width: 768px) {
    .kpop-groups-navigation {
        margin: 0 10px 20px 10px;
        max-height: 100vh;
        overflow: visible;
    }
    
    .kpop-groups-header {
        padding: 15px;
    }
    
    .kpop-groups-title {
        font-size: 16px;
    }
    
    .kpop-groups-toggle {
        width: 28px;
        height: 28px;
    }
    
    .hamburger {
        width: 20px;
        height: 16px;
    }
    
    .hamburger-line {
        height: 2px;
    }
    
    .kpop-groups-preview-wrapper {
        margin: 0;
        height: auto;
        overflow-x: auto;
        overflow-y: hidden;
        -webkit-overflow-scrolling: touch;
    }
    
    .kpop-filter-buttons {
        gap: 6px;
        margin-bottom: 10px;
        justify-content: center;
    }
    
    .kpop-filter-btn {
        padding: 5px 10px;
        font-size: 11px;
        border-radius: 6px;
    }
    
    .preview-gradient-left,
    .preview-gradient-right {
        width: 25px;
    }
    
    .preview-group {
        font-size: 12px;
        padding: 5px 12px;
    }
    
    .preview-more {
        font-size: 12px;
        padding: 5px 12px;
    }
    
    
    .kpop-groups-list {
        gap: 6px;
        width: 100%;
        box-sizing: border-box;
        max-height: none;
    }
    
    .kpop-group-item {
        padding: 5px 10px;
        font-size: 11px;
        min-height: 28px;
    }
}

/* Small Mobile */
@media (max-width: 480px) {
    .kpop-groups-list {
        grid-template-columns: repeat(2, 1fr);
    }
    
    
}

/* Hide old styles */
.kpop-list {
    display: none !important;
}

/* Remove old mobile toggle */
.kpop-mobile-toggle {
    display: none !important;
}

/* Focus styles for accessibility */
.kpop-groups-toggle:focus {
    outline: 2px solid #ec297a;
    outline-offset: 4px;
    border-radius: 4px;
}

.kpop-group-item:focus {
    outline: 3px solid #ec297a;
    outline-offset: -2px;
}

/* Smooth scrollbar for content */
.kpop-groups-content {
    scrollbar-width: thin;
    scrollbar-color: #ec297a #f1f1f1;
}

.kpop-groups-content::-webkit-scrollbar {
    width: 6px;
}

.kpop-groups-content::-webkit-scrollbar-track {
    background: #f1f1f1;
    border-radius: 3px;
}

.kpop-groups-content::-webkit-scrollbar-thumb {
    background: #ec297a;
    border-radius: 3px;
}

/* Loading animation */
@keyframes pulse {
    0% {
        opacity: 1;
    }
    50% {
        opacity: 0.6;
    }
    100% {
        opacity: 1;
    }
}

.kpop-groups-navigation.loading .preview-group {
    animation: pulse 1.5s ease-in-out infinite;
}

/* Ensure proper stacking */
.kpop-groups-navigation {
    position: relative;
    z-index: 10;
}

/* Touch scrolling optimization */
@media (hover: none) {
    .kpop-groups-preview {
        scroll-snap-type: x mandatory;
    }
    
    .preview-group {
        scroll-snap-align: start;
    }
}

/* Desktop hover effects */
@media (hover: hover) {
    .kpop-groups-preview-wrapper:hover .kpop-groups-preview {
        padding-bottom: 10px;
    }
    
    .kpop-groups-preview-wrapper:hover .kpop-groups-preview::-webkit-scrollbar {
        display: block;
        height: 6px;
    }
    
    .kpop-groups-preview-wrapper:hover .kpop-groups-preview::-webkit-scrollbar-track {
        background: #e0e0e0;
        border-radius: 3px;
    }
    
    .kpop-groups-preview-wrapper:hover .kpop-groups-preview::-webkit-scrollbar-thumb {
        background: #ec297a;
        border-radius: 3px;
    }
    
    .kpop-groups-preview-wrapper:hover .kpop-groups-preview::-webkit-scrollbar-thumb:hover {
        background: #d61f68;
    }
}