/* ============================================================
 * article.css — публикации /en/research/* и /en/engineering/*
 * Namespace: .article-page__*
 * Page-scoped: подключается только на article-страницах через
 * {{#section "style"}}. Никаких глобальных оверрайдов.
 * ============================================================ */

:root {
    /* Локальные тона, которых нет в theme.css */
    --article-primary-hover: #006A50;
    --article-body-deep: #2D3142;
}

/* Метка раздела */
.article-page__kicker {
    display: inline-block;
    font-family: var(--bs-body-font-family);
    font-weight: 700;
    font-size: 0.8125rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}
.article-page__kicker--research { color: var(--bs-primary); }
.article-page__kicker--engineering { color: var(--bs-info); }

/* H1 статьи */
.article-page__title {
    color: var(--bs-dark);
    font-weight: 500;
    line-height: 1.15;
    letter-spacing: -0.01em;
    text-wrap: balance;
    margin: 1rem 0 1.25rem;
}
.article-page__subtitle {
    color: var(--bs-secondary);
    font-size: 1.0625rem;
    line-height: 1.5;
    margin: -0.5rem 0 1rem;
}

/* Мета-строка под заголовком */
.article-page__meta {
    color: var(--bs-gray-700);
    font-size: 0.9375rem;
    margin: 0;
}
.article-page__meta-sep {
    display: inline-block;
    margin: 0 0.5rem;
    color: var(--bs-gray-400);
}

/* Hero-метрики */
.article-page__metric-value {
    color: var(--bs-primary);
    font-weight: 700;
    font-size: 2.5rem;
    line-height: 1.1;
    letter-spacing: -0.02em;
    margin-bottom: 0.5rem;
}
.article-page__metric-value--engineering { color: var(--bs-info); }
.article-page__metric-label {
    color: var(--bs-secondary);
    font-size: 0.9375rem;
    line-height: 1.5;
    margin: 0;
}
.article-page__metric-disclaimer {
    color: var(--bs-gray-600);
    font-size: 0.8125rem;
    line-height: 1.55;
    text-align: center;
    margin: 2rem auto 0;
    max-width: 640px;
}

/* Тело статьи — узкая колонка чтения */
.article-page__body {
    font-size: 1.0625rem;
    line-height: 1.75;
    color: var(--article-body-deep);
    text-wrap: pretty;
}
.article-page__body > p {
    margin: 0 0 1.5rem;
}
.article-page__body > p:last-child {
    margin-bottom: 0;
}
.article-page__body h2 {
    margin: 3rem 0 1rem;
    font-size: 1.625rem;
    font-weight: 500;
    color: var(--bs-dark);
    letter-spacing: -0.01em;
}
.article-page__body h2:first-child {
    margin-top: 0;
}
.article-page__body h3 {
    margin: 2.25rem 0 0.75rem;
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--bs-dark);
}
.article-page__body h4 {
    margin: 1.75rem 0 0.5rem;
    font-size: 1.0625rem;
    font-weight: 600;
    color: var(--bs-dark);
}
.article-page__body strong {
    color: var(--bs-dark);
    font-weight: 600;
}
.article-page__body a {
    color: var(--bs-primary);
    text-decoration: underline;
    text-decoration-thickness: 1px;
    text-underline-offset: 3px;
}
.article-page__body a:hover {
    color: var(--article-primary-hover);
}
.article-page__body ul,
.article-page__body ol {
    margin: 0 0 1.5rem;
    padding-left: 1.25rem;
}
.article-page__body li {
    margin-bottom: 0.5rem;
}
.article-page__body blockquote {
    border-left: 3px solid var(--bs-primary);
    padding-left: 1.25rem;
    margin: 1.5rem 0;
    color: var(--bs-dark);
    font-style: italic;
}
.article-page__body code {
    background: var(--bs-gray-200);
    padding: 0.125rem 0.375rem;
    border-radius: 4px;
    font-size: 0.9em;
}
.article-page__body pre {
    background: var(--bs-gray-200);
    padding: 1rem;
    border-radius: 8px;
    overflow-x: auto;
    margin: 0 0 1.5rem;
}
.article-page__body pre code {
    background: transparent;
    padding: 0;
}
.article-page__body hr {
    border: 0;
    border-top: 1px solid var(--bs-gray-300);
    margin: 2rem 0;
}
.article-page__body table {
    width: 100%;
    border-collapse: collapse;
    margin: 0 0 1.5rem;
}
.article-page__body th,
.article-page__body td {
    padding: 0.5rem 0.75rem;
    border-bottom: 1px solid var(--bs-gray-300);
    text-align: left;
}
.article-page__body th {
    font-weight: 600;
    color: var(--bs-dark);
}
.article-page__body figure {
    margin: 2.25rem 0;
}
.article-page__body figure img {
    width: 100%;
    height: auto;
    border-radius: 8px;
}
.article-page__body figcaption {
    margin-top: 0.75rem;
    color: var(--bs-gray-700);
    font-size: 0.875rem;
    line-height: 1.5;
    text-align: center;
}

/* Подвал статьи — автор */
.article-page__divider {
    border: 0;
    border-top: 1px solid var(--bs-gray-300);
    margin: 3.5rem 0 2.5rem;
}
.article-page__author {
    display: flex;
    align-items: center;
    gap: 1rem;
}
.article-page__author-text {
    flex: 1;
    min-width: 0;
}
.article-page__author-avatar {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: var(--bs-primary);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.125rem;
    letter-spacing: 0.02em;
    flex-shrink: 0;
}
.article-page__author-name {
    font-weight: 600;
    color: var(--bs-dark);
    margin: 0 0 2px;
    font-size: 1rem;
}
.article-page__author-title {
    color: var(--bs-secondary);
    font-size: 0.9375rem;
    margin: 0 0 4px;
}
.article-page__author-link {
    color: var(--bs-primary);
    font-size: 0.875rem;
    text-decoration: none;
}
.article-page__author-link:hover {
    color: var(--article-primary-hover);
    text-decoration: underline;
}

/* Related блок */
.article-page__related-title {
    font-size: 0.9375rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--bs-gray-700);
    margin: 0 0 1.25rem;
}
.article-page__related-card {
    display: block;
    padding: 1.5rem;
    background: #fff;
    border: 1px solid var(--bs-gray-300);
    border-radius: 12px;
    text-decoration: none;
    transition: border-color 0.15s ease, box-shadow 0.15s ease;
    height: 100%;
}
.article-page__related-card:hover {
    border-color: var(--bs-primary);
    box-shadow: 0 4px 16px rgba(0, 128, 96, 0.06);
}
.article-page__related-kicker {
    display: block;
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--bs-primary);
    margin-bottom: 0.75rem;
}
.article-page__related-title-link {
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    color: var(--bs-dark);
    font-size: 1.0625rem;
    font-weight: 500;
    line-height: 1.35;
    margin: 0 0 0.75rem;
}
.article-page__related-card:hover .article-page__related-title-link {
    color: var(--bs-primary);
}
.article-page__related-date {
    color: var(--bs-gray-700);
    font-size: 0.8125rem;
    margin: 0;
}

/* Listing — карточки раздела (переиспользуем .article-page__related-card стилистику) */
.article-page__listing-title {
    color: var(--bs-dark);
    font-weight: 500;
    margin: 0.75rem 0 1rem;
}
.article-page__listing-lead {
    font-size: 1.0625rem;
    line-height: 1.6;
    margin: 0;
}
.article-page__card {
    display: block;
    padding: 1.75rem;
    background: #fff;
    border: 1px solid var(--bs-gray-300);
    border-radius: 12px;
    text-decoration: none;
    transition: border-color 0.15s ease, box-shadow 0.15s ease, transform 0.15s ease;
    height: 100%;
}
.article-page__card:hover {
    border-color: var(--bs-primary);
    box-shadow: 0 4px 20px rgba(0, 128, 96, 0.08);
    transform: translateY(-2px);
}
.article-page__card-title {
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
    color: var(--bs-dark);
    font-size: 1.125rem;
    font-weight: 500;
    line-height: 1.35;
    margin: 0.75rem 0;
}
.article-page__card:hover .article-page__card-title {
    color: var(--bs-primary);
}
.article-page__card-date {
    color: var(--bs-gray-700);
    font-size: 0.8125rem;
    margin: 0;
}
.article-page__empty {
    font-size: 1rem;
}

/* Print */
@media print {
    #header, footer, .article-page__hero-metrics, .article-page__related,
    #cb-cookie-banner {
        display: none !important;
    }
    .article-page__body {
        font-size: 11pt;
        line-height: 1.55;
        color: #000;
    }
    .article-page__body a::after {
        content: " (" attr(href) ")";
        font-size: 0.85em;
        color: #555;
    }
}

/* Mobile adjustments */
@media (max-width: 767.98px) {
    .article-page__title {
        font-size: 1.875rem;
    }
    .article-page__metric-value {
        font-size: 2rem;
    }
    .article-page__body {
        font-size: 1rem;
    }
    .article-page__body h2 {
        font-size: 1.375rem;
    }
}