/* ==========================================================================
   RELATED MATERIALS
   ========================================================================== */

.related-materials {
    margin: 1.5rem 0;
    padding: 1rem 1.1rem;
    background: #f5f7f3;
    border: 1px solid #e8e6e3;
    border-left: 4px solid #6b8e7e;
    border-radius: 12px;
    font-size: 0.9rem;
}

.related-materials-title {
    margin: 0 0 0.85rem;
    color: #2c3e50;
    font-size: 1.1rem;
    line-height: 1.3;
}

.related-materials-groups {
    display: grid;
    gap: 0.9rem;
}

.related-materials-group-title {
    margin: 0 0 0.45rem;
    color: #6b8e7e;
    font-size: 0.85rem;
    font-weight: 700;
}

.related-materials-buttons {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 0.75rem;
    align-items: stretch;
}

.related-material-button {
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: 0.75rem;
    min-height: 96px;
    padding: 0.7rem 0.8rem 0.65rem;
    background: #fff;
    border: 1px solid #d8e0d9;
    border-radius: 6px;
    color: #2c3e50;
    font-size: 0.88rem;
    text-decoration: none;
    transition: border-color 0.2s, box-shadow 0.2s, transform 0.2s;
}

.related-material-button:hover,
.related-material-button:focus-visible {
    border-color: #0F6B7D;
    box-shadow: 0 4px 12px rgba(24, 146, 174, 0.16);
    color: #0F6B7D;
    text-decoration: none;
    transform: translateY(-2px);
}

.related-material-button-title {
    display: block;
    min-width: 0;
    font-weight: 600;
    line-height: 1.4;
    text-align: left;
    overflow-wrap: anywhere;
}

.related-material-button-action {
    align-self: flex-end;
    margin-top: auto;
    padding: 0.3rem 0.55rem;
    border: 1px solid #0F6B7D;
    border-radius: 4px;
    color: #0F6B7D;
    font-size: 0.76rem;
    font-weight: 600;
    line-height: 1.2;
    white-space: nowrap;
}

@media (max-width: 600px) {
    .related-materials {
        margin: 1.25rem 0;
        padding: 0.85rem;
    }

    .related-materials-buttons {
        grid-template-columns: 1fr;
    }

    .related-material-button {
        min-height: 88px;
    }
}