.vkb {
    --vkb-accent: #8b5cf6;
    --vkb-accent-2: #6d28d9;
    --vkb-surface: rgba(20, 28, 48, 0.82);
    --vkb-border: rgba(168, 139, 250, 0.18);
    --vkb-text-soft: #a8b3cf;
    --vkb-shadow: 0 24px 80px rgba(6, 10, 22, 0.28);
}

.vkb-hero {
    background: linear-gradient(135deg, rgba(109, 40, 217, 0.28), rgba(59, 130, 246, 0.12)), var(--vkb-surface);
    border: 1px solid var(--vkb-border);
    border-radius: 28px;
    box-shadow: var(--vkb-shadow);
    margin-bottom: 24px;
    overflow: hidden;
    padding: 42px 36px;
    position: relative;
}

.vkb-hero::before {
    background: radial-gradient(circle, rgba(139, 92, 246, 0.28), transparent 70%);
    content: "";
    height: 260px;
    pointer-events: none;
    position: absolute;
    right: -40px;
    top: -80px;
    width: 260px;
}

.vkb-hero__inner {
    max-width: 760px;
    position: relative;
    z-index: 1;
}

.vkb-hero__eyebrow {
    color: #c4b5fd;
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.16em;
    margin: 0 0 12px;
    text-transform: uppercase;
}

.vkb-hero__title {
    color: #fff;
    font-size: clamp(32px, 4vw, 46px);
    letter-spacing: -0.03em;
    line-height: 1.08;
    margin: 0 0 12px;
}

.vkb-hero__desc {
    color: var(--vkb-text-soft);
    font-size: 17px;
    line-height: 1.6;
    margin: 0 0 24px;
    max-width: 640px;
}

.vkb-search {
    display: grid;
    gap: 12px;
    grid-template-columns: minmax(0, 1fr) auto;
    margin-bottom: 16px;
}

.vkb-search__field {
    align-items: center;
    background: rgba(9, 14, 28, 0.55);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 16px;
    display: flex;
    gap: 12px;
    padding: 0 16px;
}

.vkb-search__field i {
    color: #c4b5fd;
}

.vkb-search__field .form-control {
    background: transparent;
    border: 0;
    box-shadow: none;
    color: #fff;
    min-height: 54px;
    padding-left: 0;
}

.vkb-search__btn {
    border-radius: 16px;
    min-height: 54px;
    padding-inline: 24px;
}

.vkb-hero__tags {
    align-items: center;
    color: var(--vkb-text-soft);
    display: flex;
    flex-wrap: wrap;
    font-size: 13px;
    gap: 8px;
}

.vkb-hero__tags a {
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 999px;
    color: #eef2ff;
    padding: 6px 12px;
    text-decoration: none;
}

.vkb-hero__tags a:hover {
    border-color: rgba(139, 92, 246, 0.45);
    color: #fff;
}

.vkb-stats {
    display: grid;
    gap: 14px;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    margin-bottom: 28px;
}

.vkb-stat {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 20px;
    padding: 18px 20px;
}

.vkb-stat strong {
    color: #fff;
    display: block;
    font-size: 28px;
    line-height: 1;
    margin-bottom: 6px;
}

.vkb-stat span {
    color: var(--vkb-text-soft);
    font-size: 13px;
}

.vkb-stat--cta {
    align-items: center;
    display: flex;
    justify-content: center;
}

.vkb-section {
    margin-bottom: 32px;
}

.vkb-section__head {
    margin-bottom: 18px;
}

.vkb-section__head h2,
.vkb-related h2,
.vkb-aside__box h3 {
    color: #fff;
    margin: 0 0 8px;
}

.vkb-section__head p,
.vkb-category-head__desc {
    color: var(--vkb-text-soft);
    margin: 0;
}

.vkb-grid {
    display: grid;
    gap: 16px;
}

.vkb-grid--cats {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.vkb-grid--articles {
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

.vkb-grid--compact {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.vkb-card {
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.04), rgba(255, 255, 255, 0.02)), rgba(17, 24, 39, 0.82);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 22px;
    color: inherit;
    display: block;
    padding: 22px;
    position: relative;
    text-decoration: none;
    transition: transform 0.22s ease, border-color 0.22s ease, box-shadow 0.22s ease;
}

.vkb-card:hover {
    border-color: rgba(139, 92, 246, 0.42);
    box-shadow: 0 18px 50px rgba(8, 12, 24, 0.28);
    color: inherit;
    text-decoration: none;
    transform: translateY(-3px);
}

.vkb-card--cat {
    align-items: flex-start;
    display: grid;
    gap: 16px;
    grid-template-columns: auto minmax(0, 1fr) auto;
}

.vkb-card__icon {
    align-items: center;
    background: rgba(139, 92, 246, 0.14);
    border-radius: 18px;
    color: #f5f3ff;
    display: inline-grid;
    font-size: 22px;
    height: 56px;
    place-items: center;
    width: 56px;
}

.vkb-card__body h3,
.vkb-card--article h3 {
    color: #fff;
    font-size: 20px;
    line-height: 1.25;
    margin: 0 0 8px;
}

.vkb-card__body p,
.vkb-card--article p {
    color: var(--vkb-text-soft);
    font-size: 14px;
    line-height: 1.55;
    margin: 0 0 10px;
}

.vkb-card__meta,
.vkb-meta {
    color: #c4b5fd;
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

.vkb-card__arrow {
    align-self: center;
    color: #c4b5fd;
}

.vkb-card__top {
    align-items: center;
    display: flex;
    gap: 10px;
    justify-content: space-between;
    margin-bottom: 12px;
}

.vkb-badge {
    align-items: center;
    background: rgba(139, 92, 246, 0.16);
    border-radius: 999px;
    color: #ddd6fe;
    display: inline-flex;
    font-size: 11px;
    font-weight: 700;
    gap: 6px;
    letter-spacing: 0.08em;
    padding: 6px 10px;
    text-transform: uppercase;
}

.vkb-card__link {
    color: #c4b5fd;
    display: inline-flex;
    font-size: 13px;
    font-weight: 600;
    gap: 6px;
}

.vkb-cta {
    margin-top: 12px;
}

.vkb-cta__box {
    align-items: center;
    background: linear-gradient(135deg, rgba(139, 92, 246, 0.14), rgba(59, 130, 246, 0.08)), rgba(17, 24, 39, 0.88);
    border: 1px solid var(--vkb-border);
    border-radius: 24px;
    display: flex;
    flex-wrap: wrap;
    gap: 18px;
    justify-content: space-between;
    padding: 28px 30px;
}

.vkb-cta__box h2 {
    color: #fff;
    margin: 0 0 8px;
}

.vkb-cta__box p {
    color: var(--vkb-text-soft);
    margin: 0;
}

.vkb-cta__actions {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.vkb-empty {
    background: rgba(255, 255, 255, 0.03);
    border: 1px dashed rgba(255, 255, 255, 0.12);
    border-radius: 22px;
    padding: 48px 24px;
    text-align: center;
}

.vkb-empty i {
    color: #8b5cf6;
    display: block;
    font-size: 34px;
    margin-bottom: 12px;
}

.vkb-empty h3 {
    color: #fff;
    margin: 0 0 8px;
}

.vkb-empty p {
    color: var(--vkb-text-soft);
    margin: 0;
}

.vkb-breadcrumb {
    color: var(--vkb-text-soft);
    font-size: 13px;
    margin-bottom: 18px;
}

.vkb-breadcrumb a {
    color: #ddd6fe;
}

.vkb-breadcrumb span {
    margin: 0 6px;
}

.vkb-article-layout {
    display: grid;
    gap: 24px;
    grid-template-columns: minmax(0, 1fr) 280px;
}

.vkb-article {
    background: rgba(17, 24, 39, 0.72);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 24px;
    padding: 28px 30px;
}

.vkb-article__head h1 {
    color: #fff;
    font-size: clamp(28px, 3vw, 38px);
    line-height: 1.15;
    margin: 0 0 14px;
}

.vkb-article__meta {
    color: var(--vkb-text-soft);
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    margin-bottom: 24px;
}

.vkb-article__meta span {
    align-items: center;
    display: inline-flex;
    gap: 8px;
}

.vkb-article__content {
    color: #dbe3f4;
    font-size: 16px;
    line-height: 1.75;
}

.vkb-article__content h2,
.vkb-article__content h3 {
    color: #fff;
    margin-top: 28px;
}

.vkb-article__content p,
.vkb-article__content li {
    color: #dbe3f4;
}

.vkb-article__content code,
.vkb-article__content pre {
    background: rgba(9, 14, 28, 0.72);
    border-radius: 10px;
}

.vkb-article__content table {
    margin: 18px 0;
    width: 100%;
}

.vkb-aside__box {
    background: rgba(17, 24, 39, 0.82);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 20px;
    margin-bottom: 16px;
    padding: 18px 18px 12px;
}

.vkb-toc {
    list-style: none;
    margin: 0;
    padding: 0;
}

.vkb-toc__item {
    margin-bottom: 8px;
}

.vkb-toc__item--h3 {
    padding-left: 14px;
}

.vkb-toc a {
    color: var(--vkb-text-soft);
    font-size: 14px;
    text-decoration: none;
}

.vkb-toc a:hover {
    color: #fff;
}

.vkb-aside__link {
    align-items: center;
    color: #eef2ff;
    display: flex;
    gap: 10px;
    margin-bottom: 10px;
    text-decoration: none;
}

.vkb-category-head {
    margin-bottom: 24px;
}

.vkb-category-head h1 {
    color: #fff;
    font-size: clamp(30px, 3vw, 40px);
    margin: 0 0 10px;
}

.vkb-category-head__count {
    color: #c4b5fd;
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 0.08em;
    margin: 12px 0 0;
    text-transform: uppercase;
}

.vkb-related {
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    margin-top: 32px;
    padding-top: 24px;
}

@media (max-width: 1199px) {
    .vkb-grid--articles {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .vkb-article-layout {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 991px) {
    .vkb-stats,
    .vkb-grid--cats,
    .vkb-grid--articles,
    .vkb-grid--compact {
        grid-template-columns: 1fr;
    }

    .vkb-search {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 767px) {
    .vkb-hero {
        padding: 28px 22px;
    }

    .vkb-card--cat {
        grid-template-columns: auto minmax(0, 1fr);
    }

    .vkb-card__arrow {
        display: none;
    }
}