/* ===============================
   CATEGORY TREE - Cyber (v3)
   Tooltip + Animate Expand + Highlight + Search
   =============================== */

.category-tree {
    position: relative;
    padding-left: 12px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.category-tree::before{
    content:"";
    position:absolute;
    left:6px;
    top:0;
    bottom:0;
    width:2px;
    background: linear-gradient(to bottom, transparent, rgba(0,255,255,0.35), transparent);
}

/* Search box (placed above tree) */
.category-search {
    margin: 8px 0 10px 0;
    position: relative;
}
.category-search input{
    width: 100%;
    padding: 10px 12px 10px 36px;
    border-radius: 12px;
    border: 1px solid rgba(0,255,255,0.20);
    background: rgba(10,16,24,0.55);
    color: #e8ffff;
    outline: none;
    transition: box-shadow .2s ease, border-color .2s ease, background .2s ease;
}
.category-search input:focus{
    border-color: rgba(0,255,255,0.55);
    box-shadow: 0 0 0 3px rgba(0,255,255,0.10), 0 0 18px rgba(0,255,255,0.18);
    background: rgba(10,16,24,0.70);
}
.category-search .icon{
    position:absolute;
    left:12px;
    top:50%;
    transform: translateY(-50%);
    opacity:.7;
    pointer-events:none;
    color:#9ffcff;
    text-shadow: 0 0 8px rgba(0,255,255,.35);
}

/* Group */
.category-tree .category-group{
    position: relative;
    border-radius: 12px;
    overflow: visible;
    background: linear-gradient(135deg, rgba(18,32,48,0.62), rgba(8,14,22,0.86));
    border: 1px solid rgba(0,255,255,0.10);
}

/* Header button */
.category-tree .category-header{
    width: 100%;
    display:flex;
    align-items:center;
    justify-content: space-between;
    gap: 10px;
    padding: 10px 12px 10px 18px;
    cursor:pointer;
    border: 0;
    background: transparent;
    color: #bfffff;
    font-weight: 700;
    letter-spacing: .2px;
    transition: background .2s ease, box-shadow .2s ease, transform .2s ease;
    position: relative;
}

.category-tree .category-header:hover{
    background: rgba(0,255,255,0.08);
    box-shadow: inset 0 0 0 1px rgba(0,255,255,.20);
}

.category-tree .category-header .left{
    display:flex;
    align-items:center;
    gap: 8px;
    min-width: 0;
}
.category-tree .category-header .title{
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.category-tree .category-header .arrow{
    opacity: .75;
    transition: transform .25s ease, opacity .25s ease;
    text-shadow: 0 0 8px rgba(0,255,255,.35);
}

.category-tree .category-group.open .category-header .arrow{
    transform: rotate(90deg);
    opacity: 1;
}
/* Hover/focus open to match menu behavior in screenshot */
.category-tree .category-group:focus-within .category-header .arrow{
    transform: rotate(90deg);
    opacity: 1;
}

/* Sublist anim */
.category-tree .subcategory-list{
    position: absolute;
    left: calc(100% + 14px);
    top: 0;
    width: 260px;
    margin-left: 0;
    padding: 10px 12px 12px;
    border: 1px solid rgba(0,255,255,0.12);
    border-radius: 12px;
    background: linear-gradient(135deg, rgba(18,32,48,0.92), rgba(8,14,22,0.98));
    box-shadow: 0 20px 40px rgba(0,0,0,0.45);
    z-index: 999;
    pointer-events: auto;

    max-height: 0;
    opacity: 0;
    overflow: hidden;
    transform: translateX(6px);
    transition: max-height .28s ease, opacity .22s ease, transform .22s ease;
    transition-delay: 0s;
}
.category-tree .subcategory-list::before{
    content: "";
    position: absolute;
    left: -16px;
    top: 0;
    bottom: 0;
    width: 16px;
}

.category-tree .category-group.open .subcategory-list{
    max-height: 70vh;
    opacity: 1;
    transform: translateX(0);
    overflow: auto;
    transition-delay: 0s;
}
/* Hover/focus open for desktop; keeps click-to-open working */
.category-tree .category-group:focus-within .subcategory-list{
    max-height: 70vh;
    opacity: 1;
    transform: translateX(0);
    overflow: auto;
    transition-delay: 0s;
}

.category-tree .subcategory-title{
    font-weight: 700;
    color: #eaffff;
    padding: 6px 8px 8px;
    border-bottom: 1px solid rgba(0,255,255,0.12);
    margin-bottom: 6px;
}

.category-tree.category-tree--search .subcategory-title{
    display: none;
}

.category-tree.category-tree--search .subcategory-list{
    position: static;
    width: auto;
    margin-left: 14px;
    padding: 0 10px 10px 14px;
    border: 0;
    border-left: 1px dashed rgba(0,255,255,0.22);
    border-radius: 0;
    background: transparent;
    box-shadow: none;
    transform: translateY(-2px);
}
.category-tree.category-tree--search .category-group.open .subcategory-list{
    max-height: 1200px;
    opacity: 1;
    transform: translateY(0);
    overflow: hidden;
}

/* Items */
.category-tree .subcategory-item{
    position: relative;
    display:flex;
    align-items:center;
    gap: 10px;
    padding: 10px 10px;
    margin: 0;
    min-height: 36px;
    border-radius: 10px;
    cursor:pointer;
    color:#d5dde3;
    transition: background .18s ease, transform .18s ease, box-shadow .18s ease;
}
.category-tree .subcategory-item:not(:last-child){
    border-bottom: 1px solid rgba(0,255,255,0.08);
}



/* Hide native radio nicely but keep accessible */
.category-tree .subcategory-item input[type="radio"]{
    width: 16px;
    height: 16px;
    accent-color: #00ffff;
}

.category-tree .subcategory-item:hover{
    background: rgba(0,255,255,0.08);
    transform: translateX(3px);
}

.category-tree .subcategory-item.active{
    background: linear-gradient(90deg, rgba(0,255,255,.28), rgba(255,0,255,.18));
    box-shadow: 0 0 14px rgba(0,255,255,.22), inset 0 0 0 1px rgba(0,255,255,.35);
}

.category-tree .subcategory-item .node{
    position:absolute;
    left:-16px;
    top:50%;
    width:6px;
    height:6px;
    background:#00ffff;
    border-radius: 50%;
    transform: translateY(-50%);
    box-shadow: 0 0 10px rgba(0,255,255,.8);
    opacity: .85;
}

/* Highlight */
.category-tree .cat-highlight{
    background: rgba(255, 0, 255, 0.20);
    color: #ffffff;
    padding: 0 2px;
    border-radius: 4px;
    box-shadow: 0 0 10px rgba(255, 0, 255, .15);
}

/* Tooltip */
.category-tree [data-tooltip]{
    position: relative;
}
.category-tree [data-tooltip]::after{
    content: attr(data-tooltip);
    position: absolute;
    left: 18px;
    top: -6px;
    transform: translateY(-100%);
    min-width: 180px;
    max-width: 280px;
    padding: 8px 10px;
    border-radius: 12px;
    pointer-events: none;
    opacity: 0;
    visibility: hidden;
    transition: opacity .16s ease, transform .16s ease, visibility .16s ease;
    background: rgba(10, 16, 24, 0.92);
    border: 1px solid rgba(0,255,255,0.22);
    color: #eaffff;
    font-size: 12px;
    line-height: 1.25;
    box-shadow: 0 10px 30px rgba(0,0,0,.45), 0 0 18px rgba(0,255,255,.12);
    z-index: 30;
}
.category-tree [data-tooltip]::before{
    content:"";
    position:absolute;
    left: 28px;
    top: -6px;
    transform: translateY(-100%);
    border: 7px solid transparent;
    border-top-color: rgba(0,255,255,0.22);
    opacity: 0;
    visibility: hidden;
    transition: opacity .16s ease, transform .16s ease, visibility .16s ease;
    z-index: 29;
}
.category-tree [data-tooltip]:hover::after{
    opacity: 1;
    visibility: visible;
    transform: translateY(calc(-100% - 6px));
}
.category-tree [data-tooltip]:hover::before{
    opacity: 1;
    visibility: visible;
    transform: translateY(calc(-100% - 6px));
}
/* Hide path tooltips */
.category-tree [data-tooltip]::after,
.category-tree [data-tooltip]::before{
    display: none;
}

/* Small helper text */
.category-tree .muted{
    opacity: .65;
    font-weight: 600;
    font-size: 12px;
}

/* Optional: compact on small screens */
@media (max-width: 900px){
    .category-tree [data-tooltip]::after{ display:none; }
    .category-tree .subcategory-title{ display:none; }
    .category-tree .subcategory-list{
        position: static;
        width: auto;
        margin-left: 14px;
        padding: 0 10px 10px 14px;
        border: 0;
        border-left: 1px dashed rgba(0,255,255,0.22);
        border-radius: 0;
        background: transparent;
        box-shadow: none;
        transform: translateY(-2px);
    }
    .category-tree .category-group.open .subcategory-list,
    .category-tree .category-group:focus-within .subcategory-list{
        max-height: 1200px;
        opacity: 1;
        transform: translateY(0);
        overflow: hidden;
    }
}