:root {
    --primary-color: #2F6BFF;
    --secondary-color: #6FA3FF;
    --background-light: #F4F7FB;
    --text-main: #1F2D3D;
    --text-dark: #000000;
    --card-bg: #FFFFFF;
    --border-color: #D6E2FF;
    --glow-color: #A5C4FF;
    --button-gradient: linear-gradient(180deg, #4A8BFF 0%, #2F6BFF 100%);
    --header-offset: 120px; /* Default, will be overridden by shared.css body padding-top */
}

/* Base styles for the page content */
.page-tin-tuc {
    font-family: Arial, sans-serif;
    color: var(--text-main); /* Default text color for light background */
    background-color: var(--background-light); /* Page background */
    line-height: 1.6;
}

/* Hero Section */
.page-tin-tuc__hero-section {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 10px 20px 40px;
    text-align: center;
    background-color: var(--card-bg);
    color: var(--text-main);
}

.page-tin-tuc__hero-image-wrapper {
    width: 100%;
    max-width: 1200px;
    margin-bottom: 30px;
    overflow: hidden;
    border-radius: 10px;
}

.page-tin-tuc__hero-image {
    width: 100%;
    height: auto;
    display: block;
    object-fit: cover;
}

.page-tin-tuc__hero-content {
    max-width: 800px;
    margin-bottom: 30px;
}

.page-tin-tuc__main-title {
    font-size: 2.8rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 15px;
    line-height: 1.2;
}

.page-tin-tuc__description {
    font-size: 1.1rem;
    margin-bottom: 30px;
    color: var(--text-main);
}

/* CTA Buttons */
.page-tin-tuc__cta-buttons {
    display: flex;
    gap: 15px;
    justify-content: center;
    flex-wrap: wrap;
}

.page-tin-tuc__btn {
    display: inline-block;
    padding: 12px 25px;
    border-radius: 8px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s ease;
    cursor: pointer;
    box-sizing: border-box;
    white-space: normal;
    word-wrap: break-word;
    max-width: 100%;
}

.page-tin-tuc__btn--primary {
    background: var(--button-gradient);
    color: #FFFFFF;
    border: 2px solid transparent;
}

.page-tin-tuc__btn--primary:hover {
    box-shadow: 0 5px 15px rgba(47, 107, 255, 0.4);
    transform: translateY(-2px);
}

.page-tin-tuc__btn--secondary {
    background: var(--card-bg);
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
}

.page-tin-tuc__btn--secondary:hover {
    background: var(--primary-color);
    color: #FFFFFF;
    box-shadow: 0 5px 15px rgba(47, 107, 255, 0.2);
    transform: translateY(-2px);
}

/* General Section Styles */
.page-tin-tuc__section {
    max-width: 1150px;
    margin: 40px auto;
    padding: 30px 20px;
    background-color: var(--card-bg);
    border-radius: 10px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
}

.page-tin-tuc__section-title {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary-color);
    text-align: center;
    margin-bottom: 20px;
}

.page-tin-tuc__section-description {
    font-size: 1.05rem;
    text-align: center;
    max-width: 800px;
    margin: 0 auto 40px;
    color: var(--text-main);
}

/* Featured News Articles */
.page-tin-tuc__featured-news .page-tin-tuc__article {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-bottom: 50px;
    padding-bottom: 30px;
    border-bottom: 1px solid var(--border-color);
}

.page-tin-tuc__featured-news .page-tin-tuc__article:last-of-type {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}

.page-tin-tuc__article-image {
    width: 100%;
    max-width: 680px;
    height: auto;
    display: block;
    border-radius: 8px;
    margin-bottom: 25px;
    object-fit: cover;
}

.page-tin-tuc__article-title {
    font-size: 1.8rem;
    font-weight: 600;
    margin-bottom: 10px;
    color: var(--text-main);
    text-align: center;
}

.page-tin-tuc__article-title a {
    color: var(--text-main);
    text-decoration: none;
    transition: color 0.3s ease;
}

.page-tin-tuc__article-title a:hover {
    color: var(--primary-color);
}

.page-tin-tuc__article-meta {
    font-size: 0.9rem;
    color: #666;
    margin-bottom: 15px;
}

.page-tin-tuc__article-content p,
.page-tin-tuc__article-content ul {
    font-size: 1rem;
    margin-bottom: 15px;
    text-align: justify;
    color: var(--text-main);
    max-width: 750px;
    margin-left: auto;
    margin-right: auto;
}

.page-tin-tuc__article-content h4 {
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--primary-color);
    margin-top: 25px;
    margin-bottom: 10px;
    text-align: center;
}

.page-tin-tuc__article-content ul {
    list-style: disc inside;
    padding-left: 20px;
}

.page-tin-tuc__read-more-btn {
    display: inline-block;
    padding: 10px 20px;
    background-color: var(--secondary-color);
    color: #FFFFFF;
    border-radius: 6px;
    text-decoration: none;
    font-weight: 500;
    transition: background-color 0.3s ease;
}

.page-tin-tuc__read-more-btn:hover {
    background-color: var(--primary-color);
}

.page-tin-tuc__view-all-btn-wrapper {
    text-align: center;
    margin-top: 40px;
}

/* Latest News Grid */
.page-tin-tuc__news-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.page-tin-tuc__news-card {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.03);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    display: flex;
    flex-direction: column;
}

.page-tin-tuc__news-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.1);
}

.page-tin-tuc__news-card-image {
    width: 100%;
    height: 250px;
    object-fit: cover;
    display: block;
}

.page-tin-tuc__news-card-content {
    padding: 20px;
    flex-grow: 1;
}

.page-tin-tuc__news-card-title {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 10px;
    line-height: 1.4;
}

.page-tin-tuc__news-card-title a {
    color: var(--text-main);
    text-decoration: none;
    transition: color 0.3s ease;
}

.page-tin-tuc__news-card-title a:hover {
    color: var(--primary-color);
}

.page-tin-tuc__news-card-date {
    font-size: 0.85rem;
    color: #888;
    margin-bottom: 15px;
}

.page-tin-tuc__news-card-summary {
    font-size: 0.95rem;
    color: var(--text-main);
    margin-bottom: 0;
}

/* Final CTA Section */
.page-tin-tuc__cta-section {
    background: var(--primary-color);
    color: #FFFFFF;
    text-align: center;
    padding: 60px 20px;
    margin-bottom: 0;
}

.page-tin-tuc__cta-section .page-tin-tuc__cta-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 20px;
    color: #FFFFFF;
}

.page-tin-tuc__cta-section .page-tin-tuc__cta-description {
    font-size: 1.1rem;
    max-width: 700px;
    margin: 0 auto 40px;
    color: #E0E0E0;
}

.page-tin-tuc__cta-section .page-tin-tuc__btn--secondary {
    background: #FFFFFF;
    color: var(--primary-color);
    border-color: #FFFFFF;
}

.page-tin-tuc__cta-section .page-tin-tuc__btn--secondary:hover {
    background: var(--secondary-color);
    color: #FFFFFF;
    border-color: var(--secondary-color);
}

/* Responsive Styles */
@media (max-width: 1024px) {
    .page-tin-tuc__main-title {
        font-size: 2.5rem;
    }
    .page-tin-tuc__article-title {
        font-size: 1.6rem;
    }
    .page-tin-tuc__news-card-title {
        font-size: 1.2rem;
    }
    .page-tin-tuc__section {
        margin: 30px auto;
        padding: 25px 15px;
    }
    .page-tin-tuc__hero-section {
        padding: 10px 15px 30px;
    }
    .page-tin-tuc__article-content h4 {
        font-size: 1.2rem;
    }
    .page-tin-tuc__article-content p,
    .page-tin-tuc__article-content ul {
        font-size: 0.95rem;
    }
}

@media (max-width: 768px) {
    /* Mobile General */
    .page-tin-tuc {
        font-size: 16px;
        line-height: 1.6;
    }

    /* Top Section (Hero) */
    .page-tin-tuc__hero-section {
        padding-top: 10px !important;
        padding-bottom: 20px;
    }

    .page-tin-tuc__main-title {
        font-size: 2rem;
        margin-bottom: 10px;
    }

    .page-tin-tuc__description {
        font-size: 1rem;
        margin-bottom: 20px;
    }

    .page-tin-tuc__cta-buttons {
        flex-direction: column;
        gap: 10px;
        width: 100%;
        padding: 0 15px;
        box-sizing: border-box;
    }

    .page-tin-tuc__btn {
        width: 100% !important;
        max-width: 100% !important;
        padding: 12px 15px !important;
        box-sizing: border-box !important;
        white-space: normal !important;
        word-wrap: break-word !important;
    }

    .page-tin-tuc__hero-image-wrapper,
    .page-tin-tuc__hero-image {
        max-width: 100% !important;
        width: 100% !important;
        height: auto !important;
        box-sizing: border-box !important;
    }

    /* Single Column Article Container */
    .page-tin-tuc__section,
    .page-tin-tuc__article-content,
    .page-tin-tuc__news-grid,
    .page-tin-tuc__news-card,
    .page-tin-tuc__cta-section {
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
        padding-left: 15px;
        padding-right: 15px;
    }
    
    .page-tin-tuc__section {
        margin: 20px auto;
        padding: 20px 15px;
    }

    .page-tin-tuc__section-title {
        font-size: 1.6rem;
        margin-bottom: 15px;
    }

    .page-tin-tuc__section-description {
        font-size: 0.95rem;
        margin-bottom: 30px;
    }

    /* Generic Images and Figure */
    .page-tin-tuc img {
        max-width: 100% !important;
        width: 100% !important;
        height: auto !important;
        display: block !important;
        box-sizing: border-box !important;
    }
    
    .page-tin-tuc__article-image {
        max-width: 100% !important;
        height: auto !important;
        margin-bottom: 20px;
    }

    /* Featured News Articles */
    .page-tin-tuc__featured-news .page-tin-tuc__article {
        margin-bottom: 30px;
        padding-bottom: 20px;
    }
    
    .page-tin-tuc__article-title {
        font-size: 1.4rem;
    }
    
    .page-tin-tuc__article-content p,
    .page-tin-tuc__article-content ul {
        font-size: 0.9rem;
    }
    .page-tin-tuc__article-content h4 {
        font-size: 1.1rem;
    }

    /* Latest News Grid */
    .page-tin-tuc__news-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .page-tin-tuc__news-card-image {
        height: 200px;
    }
    
    .page-tin-tuc__news-card-title {
        font-size: 1.1rem;
    }
    
    .page-tin-tuc__news-card-summary {
        font-size: 0.85rem;
    }

    /* Final CTA Section */
    .page-tin-tuc__cta-section {
        padding: 40px 15px;
    }

    .page-tin-tuc__cta-section .page-tin-tuc__cta-title {
        font-size: 1.8rem;
    }

    .page-tin-tuc__cta-section .page-tin-tuc__cta-description {
        font-size: 1rem;
        margin-bottom: 30px;
    }
}