:root {
    --bbc-red: #bb1919;
    --bbc-black: #121212;
    --text-primary: #222222;
    --text-secondary: #666666;
    --text-muted: #999999;
    --border-color: #e0e0e0;
    --background-light: #f6f6f6;
    --white: #ffffff;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Noto Sans', sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--white);
}

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

/* Header */
.header {
    background-color: var(--bbc-black);
    color: var(--white);
    padding: 0;
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 0;
}

.logo {
    display: flex;
    align-items: center;
    gap: 8px;
}

.bbc-logo {
    background-color: var(--white);
    color: var(--bbc-black);
    padding: 4px 8px;
    font-weight: 700;
    font-size: 18px;
    letter-spacing: 1px;
}

.news-logo {
    color: var(--white);
    font-weight: 400;
    font-size: 18px;
    letter-spacing: 1px;
}

.nav {
    display: flex;
    gap: 32px;
}

.nav-link {
    color: var(--white);
    text-decoration: none;
    font-weight: 400;
    font-size: 14px;
    transition: color 0.2s ease;
}

.nav-link:hover {
    color: var(--bbc-red);
}

/* Main Content */
.main {
    padding: 24px 0;
}

.article {
    max-width: 800px;
    margin: 0 auto;
}

.article-header {
    margin-bottom: 32px;
}

.breadcrumb {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 16px;
    font-size: 14px;
}

.breadcrumb-link {
    color: var(--bbc-red);
    text-decoration: none;
}

.breadcrumb-link:hover {
    text-decoration: underline;
}

.breadcrumb-separator {
    color: var(--text-muted);
}

.breadcrumb-current {
    color: var(--text-secondary);
}

.article-title {
    font-size: 36px;
    font-weight: 700;
    line-height: 1.3;
    margin-bottom: 24px;
    color: var(--text-primary);
}

.article-meta {
    display: flex;
    gap: 24px;
    padding-bottom: 24px;
    border-bottom: 1px solid var(--border-color);
    font-size: 14px;
}

.meta-item {
    display: flex;
    gap: 4px;
}

.meta-label {
    color: var(--text-secondary);
}

.meta-value {
    color: var(--text-primary);
    font-weight: 500;
}

/* Article Content */
.article-content {
    margin-bottom: 48px;
}

.article-image {
    margin: 32px 0;
}

.main-image {
    width: 100%;
    height: auto;
    border-radius: 4px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.image-caption {
    margin-top: 12px;
    font-size: 14px;
    color: var(--text-secondary);
    font-style: italic;
}

.article-body {
    font-size: 16px;
    line-height: 1.7;
}

.lead {
    font-size: 18px;
    font-weight: 500;
    margin-bottom: 24px;
    color: var(--text-primary);
}

.article-body p {
    margin-bottom: 20px;
}

.section-heading {
    font-size: 24px;
    font-weight: 600;
    margin: 32px 0 16px 0;
    color: var(--text-primary);
}

/* Article Footer */
.article-footer {
    border-top: 1px solid var(--border-color);
    padding-top: 24px;
    margin-bottom: 48px;
}

.tags {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    margin-bottom: 24px;
}

.tag {
    background-color: var(--background-light);
    color: var(--text-secondary);
    padding: 4px 12px;
    border-radius: 16px;
    font-size: 12px;
    font-weight: 500;
}

.share-buttons {
    display: flex;
    gap: 12px;
}

.share-btn {
    background-color: var(--bbc-red);
    color: var(--white);
    border: none;
    padding: 8px 16px;
    border-radius: 4px;
    font-size: 14px;
    cursor: pointer;
    transition: background-color 0.2s ease;
}

.share-btn:hover {
    background-color: #a01616;
}

/* Related Content */
.related-content {
    background-color: var(--background-light);
    padding: 24px;
    border-radius: 8px;
    margin-bottom: 48px;
}

.related-title {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 16px;
    color: var(--text-primary);
}

.related-articles {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.related-article {
    padding: 16px;
    background-color: var(--white);
    border-radius: 4px;
    border-left: 3px solid var(--bbc-red);
}

.related-article h4 {
    font-size: 16px;
    font-weight: 500;
    margin-bottom: 4px;
    color: var(--text-primary);
}

.related-article time {
    font-size: 12px;
    color: var(--text-secondary);
}

/* Footer */
.footer {
    background-color: var(--bbc-black);
    color: var(--white);
    padding: 48px 0 24px 0;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 32px;
    margin-bottom: 32px;
}

.footer-section h4 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 16px;
    color: var(--white);
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 8px;
}

.footer-section ul li a {
    color: #cccccc;
    text-decoration: none;
    font-size: 14px;
    transition: color 0.2s ease;
}

.footer-section ul li a:hover {
    color: var(--white);
}

.footer-bottom {
    border-top: 1px solid #333333;
    padding-top: 24px;
    text-align: center;
}

.footer-bottom p {
    color: #cccccc;
    font-size: 12px;
}

/* Responsive Design */
@media (max-width: 768px) {
    .header-content {
        flex-direction: column;
        gap: 16px;
    }

    .nav {
        gap: 16px;
    }

    .article-title {
        font-size: 28px;
    }

    .article-meta {
        flex-direction: column;
        gap: 8px;
    }

    .share-buttons {
        flex-direction: column;
    }

    .share-btn {
        width: 100%;
    }

    .container {
        padding: 0 16px;
    }
}

@media (max-width: 480px) {
    .article-title {
        font-size: 24px;
    }

    .lead {
        font-size: 16px;
    }

    .article-body {
        font-size: 15px;
    }

    .section-heading {
        font-size: 20px;
    }
}