/* ============================================
   СТАТЬЯ (single post) — навигация по содержанию
   ============================================ */
.content-navigation {
    background: #f8f9fa;
    border-radius: 12px;
    padding: 20px;
    margin-bottom: 30px;
    border: 1px solid #e9ecef;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.content-nav-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 15px;
    padding-bottom: 15px;
    border-bottom: 2px solid #3498db;
}

.content-nav-header-actions {
    display: flex;
    align-items: center;
    gap: 10px;
}

.content-nav-mobile-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
    border-radius: 4px;
    color: #3498db;
}

.content-nav-mobile-toggle:hover {
    background: rgba(52, 152, 219, 0.1);
}

.content-nav-mobile-toggle svg {
    transition: transform 0.3s ease;
}

.content-nav-mobile-toggle.expanded svg {
    transform: rotate(180deg);
}

.content-nav-header h3 {
    margin: 0;
    font-size: 1.3rem;
    color: #333;
}

.content-nav-subs-toggle {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: rgba(52, 152, 219, 0.1);
    border: 1px solid #3498db;
    color: #3498db;
    cursor: pointer;
    padding: 6px 12px;
    border-radius: 6px;
    font-size: 13px;
    transition: all 0.2s ease;
}

.content-nav-subs-toggle:hover {
    background: rgba(52, 152, 219, 0.2);
}

.content-nav-subs-toggle svg {
    transition: transform 0.3s ease;
}

.content-nav-subs-toggle.expanded svg {
    transform: rotate(180deg);
}

.content-nav-list {
    max-height: 400px;
    overflow-y: auto;
    padding-right: 10px;
}

/* Компактный режим: скрыты h3 и h4 */
.content-nav-list--compact li.nav-level-3,
.content-nav-list--compact li.nav-level-4 {
    display: none;
}

.content-nav-list ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.content-nav-list li {
    margin: 8px 0;
    position: relative;
}

.content-nav-list li.nav-level-3 {
    padding-left: 20px;
}

.content-nav-list li.nav-level-4 {
    padding-left: 40px;
}

.content-nav-list li:before {
    content: "→";
    position: absolute;
    left: 0;
    color: #3498db;
    font-size: 0.9em;
}

.content-nav-list li.nav-level-3:before {
    left: 20px;
}

.content-nav-list li.nav-level-4:before {
    left: 40px;
}

.nav-link {
    display: block;
    color: #666;
    text-align: left;
    text-decoration: none;
    font-size: 15px;
    line-height: 1.4;
    padding: 8px 0 8px 20px;
    transition: all 0.3s ease;
    border-left: 2px solid transparent;
}

.nav-level-3 .nav-link {
    padding-left: 40px;
}

.nav-level-4 .nav-link {
    padding-left: 60px;
}

.nav-link:hover {
    color: #3498db;
    padding-left: 25px;
}

.nav-level-3 .nav-link:hover {
    padding-left: 45px;
}

.nav-level-4 .nav-link:hover {
    padding-left: 65px;
}

.nav-link.active {
    color: #3498db;
    font-weight: 500;
    border-left-color: #3498db;
}

.article-main-content h2[id],
.article-main-content h3[id],
.article-main-content h4[id] {
    scroll-margin-top: 100px;
    position: relative;
}

.article-main-content h2[id].highlight,
.article-main-content h3[id].highlight,
.article-main-content h4[id].highlight {
    animation: highlightHeading 2s ease;
    background: linear-gradient(90deg, rgba(52, 152, 219, 0.1) 0%, transparent 100%);
    padding-left: 15px;
    margin-left: -15px;
    border-left: 3px solid #3498db;
}

@keyframes highlightHeading {
    0% {
        background: transparent;
    }

    50% {
        background: linear-gradient(90deg, rgba(52, 152, 219, 0.2) 0%, transparent 100%);
    }

    100% {
        background: linear-gradient(90deg, rgba(52, 152, 219, 0.1) 0%, transparent 100%);
    }
}

.article-meta-simple {
    display: flex;
    gap: 25px;
    margin-bottom: 30px;
    padding-bottom: 20px;
    border-bottom: 1px solid #eee;
    color: #666;
    font-size: 15px;
    flex-wrap: wrap;
    align-items: center;
}

.article-meta-simple span {
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.meta-categories a {
    color: #666;
    text-decoration: none;
    transition: color 0.3s ease;
}

.meta-categories a:hover {
    color: #3498db;
}

@media (max-width: 768px) {
    .content-navigation {
        padding: 15px;
    }

    .article-meta-simple {
        gap: 20px;
        font-size: 14px;
    }
}

@media (max-width: 576px) {
    .content-nav-mobile-toggle {
        display: block;
    }
    .content-nav-header {
        cursor: pointer;
    }
    .content-nav-header:hover {
        background: rgba(52, 152, 219, 0.05);
    }
    /* На мобильных изначально скрыта */
    .content-nav-list.content-nav-list--mobile-collapsed {
        max-height: 0;
        overflow: hidden;
        margin: 0;
        padding: 0;
        transition: max-height 0.3s ease;
    }
    .content-nav-list:not(.content-nav-list--mobile-collapsed) {
        max-height: 300px;
        overflow-y: auto;
    }
    .content-navigation:has(.content-nav-list--mobile-collapsed) .content-nav-header {
        margin-bottom: 0;
        padding-bottom: 0;
        border-bottom: none;
    }
    .content-navigation:has(.content-nav-list--mobile-collapsed) .content-nav-header:hover {
        border-radius: 8px;
    }
    .content-navigation:has(.content-nav-list--mobile-collapsed) {
        padding: 12px 15px;
    }
    .article-meta-simple {
        flex-direction: column;
        align-items: flex-start;
        gap: 15px;
    }
    .content-nav-subs-toggle {
        font-size: 12px;
        padding: 5px 10px;
    }
}

/* Автор статьи — специалист */
.post-author-specialist {
    padding: 40px 0 60px;
    border-top: 1px solid #e9ecef;
}

.post-author-specialist__title {
    font-size: 1.5rem;
    font-weight: 700;
    color: #333;
    margin: 0 0 24px 0;
}

.post-author-specialist__card {
    display: flex;
    gap: 24px;
    align-items: flex-start;
    background: #f8f9fa;
    border-radius: 12px;
    padding: 24px;
    max-width: 480px;
}

.post-author-specialist__photo {
    flex-shrink: 0;
    width: 120px;
    height: 120px;
    border-radius: 50%;
    overflow: hidden;
}

.post-author-specialist__img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.post-author-specialist__info {
    flex: 1;
    min-width: 0;
}

.post-author-specialist__name {
    font-size: 1.25rem;
    font-weight: 700;
    margin: 0 0 8px 0;
}

.post-author-specialist__name a {
    color: #333;
    text-decoration: none;
}

.post-author-specialist__name a:hover {
    color: #008BD0;
}

.post-author-specialist__category {
    margin-bottom: 6px;
}

.post-author-specialist__category .specialist-category-label {
    display: inline-block;
    padding: 6px 15px;
    background: linear-gradient(90deg, #06CFE5 0%, #66C924 100%);
    color: white;
    border-radius: 4px;
    font-size: 14px;
    font-weight: 600;
}

.post-author-specialist__experience {
    font-size: 14px;
    color: #666;
    margin-bottom: 12px;
}

.post-author-specialist__link {
    display: inline-block;
    color: #008BD0;
    font-weight: 600;
    font-size: 14px;
    text-decoration: none;
}

.post-author-specialist__link:hover {
    text-decoration: underline;
}

@media (max-width: 576px) {
    .post-author-specialist__card {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }

    .post-author-specialist__photo {
        width: 100px;
        height: 100px;
    }
}