/* Base de conocimientos — usa la paleta del tema (variables.css) */

.d21-kb {
    --d21k-card: #ffffff;
    --d21k-soft: #f4f7ff;
    --d21k-accent: var(--primary);
    --d21k-shadow: 0 1px 2px rgba(9, 26, 122, .04), 0 8px 24px rgba(9, 26, 122, .06);
    --d21k-shadow-hover: 0 2px 4px rgba(9, 26, 122, .06), 0 16px 36px rgba(9, 26, 122, .12);
}
[data-bs-theme="dark"] .d21-kb {
    --d21k-card: #1e293b;
    --d21k-soft: #0f172a;
    --d21k-accent: #8ea2ff;
    --d21k-shadow: 0 1px 2px rgba(0, 0, 0, .3);
    --d21k-shadow-hover: 0 16px 36px rgba(0, 0, 0, .45);
}

/* ---------- Buscador ---------- */

.d21-kb-hero {
    margin-bottom: 30px;
    padding: 40px 36px 38px;
    border-radius: calc(var(--custom-radius) * 1.5);
    background:
        radial-gradient(520px 260px at 100% 0, rgba(47, 217, 239, .28), transparent 70%),
        linear-gradient(135deg, var(--primary-darker) 0%, var(--primary-dark) 55%, var(--primary) 100%);
    color: #fff;
}
.d21-kb-hero.is-compact {
    padding: 28px 30px 30px;
}
.d21-kb-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 5px 12px;
    border-radius: 999px;
    background: rgba(255, 255, 255, .14);
    font-family: var(--font-family-monospace);
    font-size: 12px;
    font-weight: 600;
    letter-spacing: .06em;
    text-transform: uppercase;
}
.d21-kb-hero-title {
    margin: 14px 0 6px;
    font-family: var(--font-family-monospace);
    font-size: 34px;
    line-height: 1.15;
    font-weight: 700;
    color: #fff;
    overflow-wrap: anywhere;
}
.d21-kb-hero.is-compact .d21-kb-hero-title {
    font-size: 26px;
}
.d21-kb-hero-sub {
    max-width: 620px;
    margin: 0;
    font-size: 15px;
    line-height: 1.55;
    color: rgba(255, 255, 255, .85);
}
.d21-kb-hero form {
    margin-top: 22px;
}
.d21-kb-search {
    display: flex;
    align-items: center;
    gap: 8px;
    max-width: 720px;
    padding: 8px 8px 8px 18px;
    border-radius: 14px;
    background: #fff;
    box-shadow: 0 14px 34px rgba(4, 12, 66, .35);
}
.d21-kb-search:focus-within {
    box-shadow: 0 14px 34px rgba(4, 12, 66, .35), 0 0 0 3px rgba(47, 217, 239, .55);
}
.d21-kb-search > i {
    flex: 0 0 auto;
    font-size: 16px;
    color: #8a93a6;
}
.d21-kb-search .form-control {
    flex: 1 1 auto;
    min-width: 0;
    height: 46px;
    padding: 0 6px;
    border: 0 !important;
    box-shadow: none !important;
    background: transparent !important;
    font-size: 16px;
    color: #1d1d1f !important;
}
.d21-kb-search .form-control::placeholder {
    color: #8a93a6;
}
.d21-kb-search .btn {
    flex: 0 0 auto;
    height: 46px;
    padding: 0 24px;
    border-radius: 10px;
    font-family: var(--font-family-monospace);
    font-size: 15px;
    font-weight: 500;
}

/* ---------- Categorías ---------- */

.d21-kb-heading {
    margin: 0 0 16px;
    font-family: var(--font-family-monospace);
    font-size: 21px;
    font-weight: 600;
    color: var(--heading-color);
}
.d21-kb-cats {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 16px;
    margin-bottom: 30px;
}
.d21-kb-cat {
    position: relative;
}
.d21-kb-cat-link {
    display: flex;
    align-items: flex-start;
    gap: 14px;
    height: 100%;
    padding: 18px;
    border: 1px solid var(--border-color);
    border-radius: var(--custom-radius);
    background: var(--d21k-card);
    box-shadow: var(--d21k-shadow);
    text-decoration: none !important;
    transition: transform .2s, box-shadow .2s, border-color .2s;
}
.d21-kb-cat-link:hover {
    transform: translateY(-3px);
    border-color: var(--primary);
    box-shadow: var(--d21k-shadow-hover);
}
.d21-kb-cat-icon {
    flex: 0 0 46px;
    width: 46px;
    height: 46px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 12px;
    background: var(--d21k-soft);
    color: var(--d21k-accent);
    font-size: 19px;
    transition: background .2s, color .2s;
}
.d21-kb-cat-link:hover .d21-kb-cat-icon {
    background: var(--primary);
    color: #fff;
}
.d21-kb-cat-body {
    flex: 1 1 auto;
    min-width: 0;
}
.d21-kb-cat-body strong {
    display: block;
    font-family: var(--font-family-monospace);
    font-size: 16px;
    font-weight: 600;
    line-height: 1.3;
    color: var(--heading-color);
}
.d21-kb-cat-body small {
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 2;
    overflow: hidden;
    margin-top: 4px;
    font-size: 13px;
    line-height: 1.45;
    color: var(--body-color);
}
.d21-kb-cat-body em {
    display: inline-block;
    margin-top: 10px;
    padding: 2px 9px;
    border-radius: 999px;
    background: var(--d21k-soft);
    font-size: 11.5px;
    font-style: normal;
    font-weight: 600;
    color: var(--d21k-accent);
}
.d21-kb-cat-arrow,
.d21-kb-item-arrow {
    flex: 0 0 auto;
    align-self: center;
    font-size: 12px;
    color: var(--gray);
    transition: transform .2s, color .2s;
}
.d21-kb-cat-link:hover .d21-kb-cat-arrow,
.d21-kb-item:hover .d21-kb-item-arrow {
    transform: translateX(4px);
    color: var(--d21k-accent);
}

/* ---------- Listas de artículos ---------- */

.d21-kb-box {
    margin-bottom: 26px;
    border: 1px solid var(--border-color);
    border-radius: var(--custom-radius);
    background: var(--d21k-card);
    box-shadow: var(--d21k-shadow);
    overflow: hidden;
}
.d21-kb-box-title {
    margin: 0;
    padding: 16px 22px;
    border-bottom: 1px solid var(--border-color);
    background: var(--d21k-soft);
    font-family: var(--font-family-monospace);
    font-size: 17px;
    font-weight: 600;
    color: var(--heading-color);
}
.d21-kb-box-title i {
    margin-right: 6px;
    color: var(--d21k-accent);
}
.d21-kb-item-wrap {
    position: relative;
}
.d21-kb-item-wrap + .d21-kb-item-wrap {
    border-top: 1px solid var(--border-color);
}
.d21-kb-item {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 14px 22px;
    text-decoration: none !important;
    transition: background .15s;
}
.d21-kb-item:hover {
    background: var(--d21k-soft);
}
.d21-kb-item-icon {
    flex: 0 0 36px;
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 10px;
    background: var(--d21k-soft);
    color: var(--d21k-accent);
    font-size: 15px;
}
.d21-kb-item:hover .d21-kb-item-icon {
    background: var(--d21k-card);
}
.d21-kb-item-body {
    flex: 1 1 auto;
    min-width: 0;
}
.d21-kb-item-body strong {
    display: block;
    font-family: var(--font-family-monospace);
    font-size: 15px;
    font-weight: 500;
    line-height: 1.35;
    color: var(--heading-color);
}
.d21-kb-item:hover .d21-kb-item-body strong {
    color: var(--d21k-accent);
}
.d21-kb-item .d21-kb-item-body small {
    display: block;
    margin: 2px 0 0;
    padding: 0;
    overflow: hidden;
    font-size: 13px;
    line-height: 1.45;
    white-space: nowrap;
    text-overflow: ellipsis;
    color: var(--body-color);
}
.d21-kb-empty {
    padding: 34px 22px;
    text-align: center;
    color: var(--body-color);
}
.d21-kb-empty i {
    display: block;
    margin-bottom: 8px;
    font-size: 26px;
    color: var(--gray);
}
.d21-kb-edit {
    position: absolute;
    top: 8px;
    right: 8px;
    padding: 2px 8px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    background: var(--d21k-card);
    font-size: 11px;
    color: var(--body-color);
    cursor: pointer;
}
.d21-kb-edit.is-static {
    position: static;
    display: inline-block;
    margin-top: 14px;
    text-decoration: none;
}

/* ---------- Bloque de ayuda y navegación ---------- */

.d21-kb-help {
    display: flex;
    align-items: center;
    gap: 16px;
    flex-wrap: wrap;
    padding: 20px 22px;
    border: 1px solid var(--border-color);
    border-radius: var(--custom-radius);
    background: var(--d21k-soft);
}
.d21-kb-help-icon {
    flex: 0 0 44px;
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: var(--primary);
    color: #fff;
    font-size: 18px;
}
.d21-kb-help-text {
    flex: 1 1 240px;
    min-width: 0;
}
.d21-kb-help-text strong {
    display: block;
    font-family: var(--font-family-monospace);
    font-size: 16px;
    color: var(--heading-color);
}
.d21-kb-help-text span {
    font-size: 14px;
    color: var(--body-color);
}
.d21-kb-nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 26px;
}
.d21-kb-nav .btn i {
    margin-right: 6px;
    font-size: 12px;
}

/* ---------- Artículo (comparte la base .d21-post de d21-news.css) ---------- */

.d21-kb-post {
    margin-bottom: 26px;
}
.d21-kb-post-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
}
.d21-kb-print {
    padding: 5px 12px;
    border: 1px solid var(--border-color);
    border-radius: 999px;
    font-size: 13px;
    color: var(--body-color);
    text-decoration: none !important;
}
.d21-kb-print:hover {
    border-color: var(--primary);
    color: var(--d21k-accent);
}
.d21-kb-content img {
    display: block;
    max-width: 100%;
    height: auto;
    margin: 14px 0;
    border: 1px solid var(--border-color);
    box-shadow: var(--d21k-shadow);
}
.d21-kb-content table {
    display: block;
    max-width: 100%;
    overflow-x: auto;
    border-collapse: collapse;
    font-size: 14px;
}
.d21-kb-content th,
.d21-kb-content td {
    padding: 8px 12px;
    border: 1px solid var(--border-color);
}
.d21-kb-content th {
    background: var(--d21k-soft);
    color: var(--heading-color);
}
.d21-kb-content pre,
.d21-kb-content code {
    border-radius: 6px;
    background: var(--d21k-soft);
    font-size: 13.5px;
}
.d21-kb-content code {
    padding: 2px 6px;
}
.d21-kb-content pre {
    padding: 14px 16px;
    overflow-x: auto;
}
.d21-kb-content pre code {
    padding: 0;
    background: transparent;
}
.d21-kb-vote {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 12px 18px;
    margin-top: 18px;
    padding: 18px 20px;
    border: 1px dashed var(--border-color);
    border-radius: var(--custom-radius);
}
.d21-kb-vote strong {
    font-family: var(--font-family-monospace);
    font-size: 15px;
    font-weight: 600;
    color: var(--heading-color);
}
.d21-kb-vote-btns {
    display: flex;
    gap: 8px;
}
.d21-kb-vote-btn {
    padding: 8px 18px;
    border: 1px solid var(--border-color);
    border-radius: 999px;
    background: var(--d21k-card);
    font-family: var(--font-family-monospace);
    font-size: 14px;
    font-weight: 500;
    color: var(--heading-color);
    cursor: pointer;
    transition: background .15s, color .15s, border-color .15s;
}
.d21-kb-vote-btn i {
    margin-right: 4px;
}
.d21-kb-vote-btn.is-yes:hover {
    border-color: #1a8f4c;
    background: #1a8f4c;
    color: #fff;
}
.d21-kb-vote-btn.is-no:hover {
    border-color: #c93636;
    background: #c93636;
    color: #fff;
}
.d21-kb-post .d21-post-share {
    margin-top: 14px;
}

@media (max-width: 575px) {
    .d21-kb-hero,
    .d21-kb-hero.is-compact {
        padding: 26px 18px 24px;
    }
    .d21-kb-hero-title {
        font-size: 26px;
    }
    .d21-kb-hero.is-compact .d21-kb-hero-title {
        font-size: 22px;
    }
    .d21-kb-search {
        flex-wrap: wrap;
        padding: 8px;
    }
    .d21-kb-search > i {
        margin-left: 10px;
    }
    .d21-kb-search .form-control {
        flex: 1 1 0;
    }
    .d21-kb-search .btn {
        flex: 1 1 100%;
    }
    .d21-kb-item {
        padding: 12px 16px;
    }
    .d21-kb-item-body small {
        white-space: normal;
        display: -webkit-box;
        -webkit-box-orient: vertical;
        -webkit-line-clamp: 2;
    }
    .d21-kb-help .btn {
        width: 100%;
    }
}

@media print {
    .d21-kb-vote,
    .d21-post-share,
    .d21-kb-help,
    .d21-kb-box,
    .d21-kb-post-top {
        display: none !important;
    }
    .d21-post {
        border: 0;
        box-shadow: none;
        padding: 0;
    }
}

@media (prefers-reduced-motion: reduce) {
    .d21-kb-cat-link,
    .d21-kb-cat-arrow,
    .d21-kb-item-arrow {
        transition: none;
    }
    .d21-kb-cat-link:hover {
        transform: none;
    }
}

/* ---------- Descargas (reutiliza buscador, categorías y listas de arriba) ---------- */

.d21-dl .d21-kb-item {
    align-items: flex-start;
}
.d21-dl .d21-kb-item .d21-kb-item-body small {
    white-space: normal;
    overflow-wrap: anywhere;
}
.d21-dl-meta {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    margin-top: 8px;
    padding: 2px 9px;
    border-radius: 999px;
    background: var(--d21k-soft);
    font-size: 11.5px;
    font-weight: 600;
    color: var(--body-color);
}
.d21-dl-item:hover .d21-dl-meta {
    background: var(--d21k-card);
}
.d21-dl-lock {
    margin-left: 6px;
    padding: 1px 8px;
    border-radius: 999px;
    background: #fdecec;
    font-family: var(--font-family-sans-serif);
    font-size: 11px;
    font-weight: 600;
    color: #c93636;
    white-space: nowrap;
}
.d21-dl-btn {
    flex: 0 0 auto;
    align-self: center;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    border: 1px solid var(--primary);
    border-radius: 999px;
    font-family: var(--font-family-monospace);
    font-size: 13.5px;
    font-weight: 500;
    color: var(--d21k-accent);
    transition: background .15s, color .15s;
}
.d21-dl-item:hover .d21-dl-btn {
    background: var(--primary);
    color: #fff;
}
@media (max-width: 575px) {
    .d21-dl-btn {
        width: 38px;
        height: 38px;
        padding: 0;
        justify-content: center;
    }
    .d21-dl-btn span {
        display: none;
    }
}