.periodicals-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 30px 20px;
}

/* --- ВЕРХНІЙ БЛОК --- */
.top-journals-section {
    text-align: center;
    margin-bottom: 50px;
}

.uppercase-title {
    text-transform: uppercase;
    color: var(--primary-color);
    font-size: 1.8rem;
    margin-bottom: 30px;
    letter-spacing: 1px;
    font-weight: 800;
}

.journals-logos-grid {
    display: flex;
    justify-content: center;
    gap: 30px;
    flex-wrap: wrap;
    margin-bottom: 30px;
}

.journal-logo-link {
    display: block;
    width: 180px; 
    height: 100px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.3s;
    background: #fff; 
    border-radius: 8px;
    padding: 10px;
}

.journal-logo-link:hover {
    transform: scale(1.05);
}

.journal-logo-link img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
}

.authors-invite-box {
    background-color: #e3f2fd; 
    border-left: 5px solid #2196f3;
    padding: 15px 20px;
    display: inline-block;
    border-radius: 4px;
    font-size: 1.1rem;
    color: #0d47a1;
    max-width: 800px;
}

.periodicals-layout {
    display: grid;
    grid-template-columns: 1fr 300px; 
    gap: 40px;
}

.section-heading {
    border-bottom: 2px solid var(--primary-color);
    padding-bottom: 10px;
    margin-bottom: 30px;
    color: var(--primary-color);
    font-size: 1.5rem;
}

.journals-detailed-list {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.journal-card {
    display: flex;
    gap: 25px;
    background: #fff;
    border: 1px solid #eee;
    padding: 25px;
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.03);
}

.journal-cover-col {
    flex: 0 0 200px; 
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.cover-wrapper {
    position: relative;
    box-shadow: 0 5px 15px rgba(0,0,0,0.2);
    border-radius: 4px;
    overflow: hidden;
}

.cover-wrapper img {
    width: 100%;
    display: block;
}

.current-issue-badge {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    background: rgba(40, 75, 89, 0.9);
    color: #fff;
    text-align: center;
    padding: 5px;
    font-size: 0.8rem;
    font-weight: 600;
}

.btn-journal-site {
    background: var(--primary-color);
    color: #fff;
    text-align: center;
    padding: 10px;
    border-radius: 6px;
    text-decoration: none;
    font-weight: 600;
    transition: background 0.3s;
    font-size: 0.9rem;
}
.btn-journal-site:hover {
    background: #1c3642;
}

.journal-info-col {
    flex: 1;
}

.journal-title {
    margin-top: 0;
    color: var(--primary-color);
    font-size: 1.4rem;
    margin-bottom: 15px;
    line-height: 1.3;
}

.journal-desc {
    font-size: 0.95rem;
    color: #555;
    line-height: 1.6;
    margin-bottom: 20px;
    text-align: justify;
}

/* Архів */
.journal-archive-block {
    background: #f8f9fa;
    padding: 15px;
    border-radius: 8px;
    border: 1px solid #eee;
}

.journal-archive-block h4 {
    margin: 0 0 10px 0;
    font-size: 1rem;
    color: #333;
}

.archive-year {
    margin-bottom: 8px;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 8px;
}

.year-label {
    font-weight: bold;
    color: #777;
    margin-right: 5px;
}

.issue-link {
    display: inline-block;
    padding: 2px 8px;
    background: #fff;
    border: 1px solid #ccc;
    border-radius: 4px;
    text-decoration: none;
    color: #333;
    font-size: 0.85rem;
    transition: all 0.2s;
}

.issue-link:hover {
    background: var(--primary-color);
    color: #fff;
    border-color: var(--primary-color);
}

.accordion-section {
        margin-bottom: 20px;
        background: #fff;
        border-radius: 8px;
        border: 1px solid #e0e0e0;
        overflow: hidden;
    }
    .accordion-header {
        padding: 20px 25px;
        background: #fdfdfd;
        cursor: pointer;
        display: flex;
        justify-content: space-between;
        align-items: center;
        transition: background 0.3s;
    }
    .accordion-header:hover {
        background: #f0f4f8;
    }
    .accordion-header h2 {
        margin: 0;
        font-size: 1.3rem;
        color: #284B59; /* Колір з вашого дизайну */
    }
    .accordion-icon {
        font-size: 1.2rem;
        color: #284B59;
        transition: transform 0.3s ease;
    }
    /* Поворот стрілки коли відкрито */
    .accordion-section.active .accordion-icon {
        transform: rotate(180deg);
    }
    /* Контент прихований за замовчуванням */
    .accordion-content {
        display: none;
        padding: 25px;
        border-top: 1px solid #eee;
        animation: fadeIn 0.4s ease;
    }
    /* Клас для показу контенту */
    .accordion-content.open {
        display: block;
    }
    @keyframes fadeIn {
        from { opacity: 0; transform: translateY(-10px); }
        to { opacity: 1; transform: translateY(0); }
    }

/* --- ТЕЗИ ТА КНИГИ (Сітка) --- */
.books-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 25px;
}

.book-card {
    background: #fff;
    border: 1px solid #eee;
    border-radius: 8px;
    overflow: hidden;
    transition: transform 0.3s;
}

.book-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.book-thumb {
    position: relative;
    height: 280px;
    background: #f4f4f4;
    overflow: hidden;
}

.book-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.book-type-label {
    position: absolute;
    top: 10px;
    right: 10px;
    background: rgba(255, 255, 255, 0.9);
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 0.8rem;
    font-weight: bold;
    color: #333;
}

.book-info {
    padding: 15px;
    text-align: center;
}

.book-info h4 {
    font-size: 1rem;
    margin: 0 0 10px 0;
    height: 40px; /* Обмеження висоти назви */
    overflow: hidden;
}
.book-info h4 a {
    color: var(--text-color);
    text-decoration: none;
}

.btn-book-details {
    display: inline-block;
    color: var(--primary-color);
    font-weight: 600;
    text-decoration: none;
    font-size: 0.9rem;
    border-bottom: 1px dashed var(--primary-color);
}

/* --- САЙДБАР --- */
.sidebar-widget {
    background: #fff;
    border: 1px solid #eee;
    padding: 20px;
    border-radius: 8px;
    margin-bottom: 30px;
}

.sidebar-widget h3 {
    margin-top: 0;
    padding-bottom: 10px;
    border-bottom: 1px solid #eee;
    font-size: 1.2rem;
    color: var(--primary-color);
}

.banner-placeholder {
    background: #eee;
    color: #999;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    font-size: 0.9rem;
    border: 1px dashed #ccc;
    height: 250px; /* 300x250 */
    margin-bottom: 20px;
}
.banner-placeholder.vertical {
    height: 600px;
}

.sidebar-links {
    list-style: none;
    padding: 0;
    margin: 0;
}
.sidebar-links li {
    margin-bottom: 10px;
}
.sidebar-links a {
    color: #555;
    text-decoration: none;
    transition: color 0.2s;
}
.sidebar-links a:hover {
    color: var(--primary-color);
    padding-left: 5px;
}

/* --- Responsive --- */
@media (max-width: 900px) {
    .periodicals-layout {
        grid-template-columns: 1fr; /* Одна колонка на мобільному */
    }
    
    .journal-card {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }
    
    .journal-cover-col {
        width: 100%;
        max-width: 250px;
    }
    
    .journal-desc {
        text-align: left;
    }
    
    .journals-logos-grid {
        gap: 15px;
    }
}