.ldm-hub-directory-grid {
    --ldm-hub-accent: #17658f;
    --ldm-hub-accent-dark: #124b6b;
    --ldm-hub-border: #d6e1e8;
    --ldm-hub-surface: #ffffff;
    --ldm-hub-text: #173b57;
    --ldm-hub-muted: #556875;
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: stretch;
    gap: 18px;
    width: calc(100% - 32px);
    max-width: 1120px;
    margin: 12px auto 10px;
}

/* Flex rather than a rigid grid centres incomplete rows. */
.ldm-hub-directory-grid.ldm-hub-cols-2 .ldm-hub-directory-card {
    flex: 0 1 calc((100% - 18px) / 2);
    max-width: calc((100% - 18px) / 2);
}
.ldm-hub-directory-grid.ldm-hub-cols-3 .ldm-hub-directory-card {
    flex: 0 1 calc((100% - 36px) / 3);
    max-width: calc((100% - 36px) / 3);
}
.ldm-hub-directory-grid.ldm-hub-cols-4 .ldm-hub-directory-card {
    flex: 0 1 calc((100% - 54px) / 4);
    max-width: calc((100% - 54px) / 4);
}

.ldm-hub-directory-card {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    min-height: 154px;
    padding: 21px;
    border: 1px solid var(--ldm-hub-border);
    border-radius: 14px;
    background: var(--ldm-hub-surface);
    color: var(--ldm-hub-text);
    text-decoration: none !important;
    box-shadow: 0 5px 18px rgba(24, 50, 67, .08);
    transition: transform .16s ease, box-shadow .16s ease, border-color .16s ease;
}
.ldm-hub-directory-card:hover,
.ldm-hub-directory-card:focus-visible {
    transform: translateY(-3px);
    border-color: var(--ldm-hub-accent);
    box-shadow: 0 10px 28px rgba(24, 50, 67, .15);
    color: var(--ldm-hub-text);
}
.ldm-hub-directory-card:focus-visible {
    outline: 3px solid rgba(23, 101, 143, .22);
    outline-offset: 3px;
}

.ldm-hub-directory-icon {
    flex: 0 0 52px;
    width: 52px;
    height: 52px;
    display: grid;
    place-items: center;
    border-radius: 13px;
    background: #edf6fa;
    color: var(--ldm-hub-accent);
}
.ldm-hub-directory-icon svg {
    width: 30px;
    height: 30px;
    display: block;
}
.ldm-hub-directory-copy {
    display: flex;
    flex: 1 1 auto;
    flex-direction: column;
    align-self: stretch;
    min-width: 0;
}
.ldm-hub-directory-title {
    display: block;
    margin: 0 0 6px;
    color: var(--ldm-hub-text);
    font-size: 1.2em;
    font-weight: 700;
    line-height: 1.2;
}
.ldm-hub-directory-description {
    display: block;
    color: var(--ldm-hub-muted);
    font-size: .95em;
    line-height: 1.45;
}
.ldm-hub-directory-action {
    display: inline-flex;
    align-items: center;
    align-self: flex-start;
    gap: 4px;
    margin-top: auto;
    padding: 6px 10px;
    border-radius: 999px;
    background: #edf6fa;
    color: var(--ldm-hub-accent-dark);
    font-weight: 700;
    font-size: .9em;
    line-height: 1.25;
}
.ldm-hub-directory-card:hover .ldm-hub-directory-action,
.ldm-hub-directory-card:focus-visible .ldm-hub-directory-action {
    background: var(--ldm-hub-accent);
    color: #fff;
    text-decoration: none;
}

.ldm-hub-empty {
    width: calc(100% - 32px);
    max-width: 760px;
    margin: 12px auto;
    padding: 18px 20px;
    border: 1px solid #d9e2e8;
    border-radius: 12px;
    background: #f7fafc;
    color: #4c5d69;
    text-align: center;
}

@media (max-width: 900px) {
    .ldm-hub-directory-grid.ldm-hub-cols-3 .ldm-hub-directory-card,
    .ldm-hub-directory-grid.ldm-hub-cols-4 .ldm-hub-directory-card {
        flex-basis: calc((100% - 14px) / 2);
        max-width: calc((100% - 14px) / 2);
    }
    .ldm-hub-directory-grid { gap: 14px; }
}

@media (max-width: 600px) {
    .ldm-hub-directory-grid {
        width: calc(100% - 24px);
        gap: 12px;
        margin-top: 8px;
        margin-bottom: 8px;
    }
    .ldm-hub-directory-grid.ldm-hub-cols-2 .ldm-hub-directory-card,
    .ldm-hub-directory-grid.ldm-hub-cols-3 .ldm-hub-directory-card,
    .ldm-hub-directory-grid.ldm-hub-cols-4 .ldm-hub-directory-card {
        flex-basis: calc((100% - 12px) / 2);
        max-width: calc((100% - 12px) / 2);
    }
    .ldm-hub-directory-card {
        min-height: 158px;
        padding: 15px;
        gap: 11px;
        flex-direction: column;
    }
    .ldm-hub-directory-icon {
        flex-basis: 42px;
        width: 42px;
        height: 42px;
    }
    .ldm-hub-directory-icon svg { width: 25px; height: 25px; }
    .ldm-hub-directory-title { font-size: 1.05em; }
    .ldm-hub-directory-description { font-size: .88em; line-height: 1.38; }
    .ldm-hub-directory-action { margin-top: auto; padding: 5px 8px; font-size: .84em; }
}

@media (max-width: 370px) {
    .ldm-hub-directory-grid.ldm-hub-cols-2 .ldm-hub-directory-card,
    .ldm-hub-directory-grid.ldm-hub-cols-3 .ldm-hub-directory-card,
    .ldm-hub-directory-grid.ldm-hub-cols-4 .ldm-hub-directory-card {
        flex-basis: 100%;
        max-width: 100%;
    }
    .ldm-hub-directory-card {
        min-height: 0;
        flex-direction: row;
    }
}