.sidebar-cats-3d {
    position: relative;
}

.sidebar-cats-3d__shell {
    position: relative;
    border-radius: 18px;
    padding: 2px;
    background: linear-gradient(135deg, #1f6fd1 0%, #22a54c 30%, #ea580c 58%, #7c3aed 82%, #c20000 100%);
    box-shadow:
        0 14px 30px rgba(31, 111, 209, 0.16),
        0 6px 14px rgba(0, 31, 63, 0.1);
    overflow: hidden;
}

.sidebar-cats-3d__shell::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(115deg, transparent 0%, rgba(255, 255, 255, 0.42) 48%, transparent 72%);
    transform: translateX(-120%);
    animation: sidebarCatsShine 6s ease-in-out infinite;
    pointer-events: none;
    z-index: 2;
}

.sidebar-cats-3d__body {
    position: relative;
    z-index: 1;
    padding: 0.95rem 0.9rem 1rem;
    border-radius: 16px;
    background:
        radial-gradient(circle at 100% 0%, rgba(31, 111, 209, 0.12) 0%, transparent 42%),
        radial-gradient(circle at 0% 100%, rgba(34, 165, 76, 0.1) 0%, transparent 45%),
        linear-gradient(180deg, #ffffff 0%, #f8fbff 100%);
    border: 1px solid rgba(255, 255, 255, 0.9);
}

.sidebar-cats-3d__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.5rem;
    margin-bottom: 0.55rem;
    padding-bottom: 0.55rem;
    border-bottom: 1px solid rgba(10, 45, 92, 0.08);
}

.sidebar-cats-3d__header-main {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    min-width: 0;
}

.sidebar-cats-3d__header-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 2rem;
    height: 2rem;
    border-radius: 10px;
    color: #fff;
    background: linear-gradient(145deg, #ea580c 0%, #1f6fd1 55%, #22a54c 100%);
    box-shadow: 0 4px 10px rgba(31, 111, 209, 0.28);
}

.sidebar-cats-3d__header-title {
    margin: 0;
    font-size: 1rem;
    font-weight: 800;
    background: linear-gradient(90deg, #001f3f 0%, #1f6fd1 55%, #22a54c 100%);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.sidebar-cats-3d__count-chip {
    display: inline-flex;
    align-items: center;
    padding: 0.18rem 0.5rem;
    border-radius: 999px;
    font-size: 0.68rem;
    font-weight: 800;
    color: #1f3550;
    background: rgba(255, 255, 255, 0.92);
    border: 1px solid rgba(31, 111, 209, 0.18);
    white-space: nowrap;
}

.sidebar-cats-3d__summary {
    margin: 0 0 0.65rem;
    font-size: 0.76rem;
    font-weight: 600;
    color: #5a6d84;
}

.sidebar-cats-3d__list {
    display: flex;
    flex-direction: column;
    gap: 0.45rem;
    margin: 0;
    padding: 0;
    list-style: none;
    max-height: 420px;
    overflow-y: auto;
    scrollbar-width: thin;
    scrollbar-color: rgba(31, 111, 209, 0.35) transparent;
}

.sidebar-cats-3d__item {
    --cat-accent: #1f6fd1;
    --cat-accent-soft: rgba(31, 111, 209, 0.14);
    --cat-accent-glow: rgba(31, 111, 209, 0.28);
}

.sidebar-cats-3d__item:nth-child(5n + 1) {
    --cat-accent: #1f6fd1;
    --cat-accent-soft: rgba(31, 111, 209, 0.14);
    --cat-accent-glow: rgba(31, 111, 209, 0.28);
}

.sidebar-cats-3d__item:nth-child(5n + 2) {
    --cat-accent: #16a34a;
    --cat-accent-soft: rgba(22, 163, 74, 0.14);
    --cat-accent-glow: rgba(22, 163, 74, 0.28);
}

.sidebar-cats-3d__item:nth-child(5n + 3) {
    --cat-accent: #ea580c;
    --cat-accent-soft: rgba(234, 88, 12, 0.14);
    --cat-accent-glow: rgba(234, 88, 12, 0.28);
}

.sidebar-cats-3d__item:nth-child(5n + 4) {
    --cat-accent: #7c3aed;
    --cat-accent-soft: rgba(124, 58, 237, 0.14);
    --cat-accent-glow: rgba(124, 58, 237, 0.28);
}

.sidebar-cats-3d__item:nth-child(5n + 5) {
    --cat-accent: #db2777;
    --cat-accent-soft: rgba(219, 39, 119, 0.14);
    --cat-accent-glow: rgba(219, 39, 119, 0.28);
}

.sidebar-cats-3d__link {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.65rem;
    padding: 0.58rem 0.62rem 0.58rem 0.72rem;
    border-radius: 12px;
    text-decoration: none;
    color: #1f3550;
    background: linear-gradient(90deg, var(--cat-accent-soft) 0%, rgba(255, 255, 255, 0.96) 45%);
    border: 1px solid rgba(10, 45, 92, 0.08);
    box-shadow: 0 2px 6px rgba(0, 31, 63, 0.05);
    transition: transform 0.16s ease, box-shadow 0.16s ease, border-color 0.16s ease;
    position: relative;
    overflow: hidden;
}

.sidebar-cats-3d__link::before {
    content: '';
    position: absolute;
    left: 0;
    top: 12%;
    bottom: 12%;
    width: 4px;
    border-radius: 0 4px 4px 0;
    background: linear-gradient(180deg, var(--cat-accent) 0%, color-mix(in srgb, var(--cat-accent) 72%, #000) 100%);
}

.sidebar-cats-3d__link:hover {
    transform: translateX(4px);
    border-color: var(--cat-accent-glow);
    box-shadow: 0 8px 16px var(--cat-accent-glow);
    color: #102a43;
}

.sidebar-cats-3d__item.is-active .sidebar-cats-3d__link {
    border-color: var(--cat-accent);
    box-shadow:
        0 8px 16px var(--cat-accent-glow),
        inset 0 0 0 1px color-mix(in srgb, var(--cat-accent) 30%, white);
}

.sidebar-cats-3d__link-main {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    min-width: 0;
}

.sidebar-cats-3d__dot {
    width: 0.5rem;
    height: 0.5rem;
    border-radius: 50%;
    flex-shrink: 0;
    background: var(--cat-accent);
    box-shadow: 0 0 0 3px color-mix(in srgb, var(--cat-accent) 22%, white);
}

.sidebar-cats-3d__name {
    font-size: 0.88rem;
    font-weight: 700;
    line-height: 1.35;
    word-break: break-word;
}

.sidebar-cats-3d__badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 1.85rem;
    padding: 0.15rem 0.45rem;
    border-radius: 999px;
    font-size: 0.72rem;
    font-weight: 800;
    color: #fff;
    background: linear-gradient(145deg, var(--cat-accent) 0%, color-mix(in srgb, var(--cat-accent) 75%, #000) 100%);
    box-shadow:
        0 3px 8px var(--cat-accent-glow),
        inset 0 1px 0 rgba(255, 255, 255, 0.28);
    flex-shrink: 0;
}

.sidebar-widget--categories {
    margin-bottom: 1rem;
}

@keyframes sidebarCatsShine {
    0%, 80%, 100% { transform: translateX(-120%); }
    42% { transform: translateX(120%); }
}

@media (prefers-reduced-motion: reduce) {
    .sidebar-cats-3d__shell::before {
        animation: none;
    }
}