:root {
    --color-primary: #113B7A;
    --color-secondary: #1D5FD1;
    --color-text-main: #F3F8FF;
    --color-text-secondary: #AFC4E8;
    --color-card-bg: #10233F;
    --color-border: #244D84;
    --color-glow: #4FA8FF;
    --color-gold: #F2C14E;
    --color-divider: #1B3357;
    --color-deep-navy: #08162B;
    --btn-gradient: linear-gradient(180deg, #2B73F6 0%, #1144A6 100%);
}

.page-tin-tuc {
    background-color: var(--color-deep-navy); /* Assumed body background from shared.css */
    color: var(--color-text-main);
    font-family: Arial, sans-serif;
    line-height: 1.6;
}

.page-tin-tuc__container {
    max-width: 1170px;
    margin: 0 auto;
    padding: 40px 16px;
    box-sizing: border-box;
}

.page-tin-tuc__section-title {
    font-size: 2.5em;
    color: var(--color-gold);
    text-align: center;
    margin-bottom: 40px;
    font-weight: bold;
    line-height: 1.2;
    letter-spacing: -0.02em;
}

.page-tin-tuc__main-title {
    font-weight: bold;
    line-height: 1.2;
    letter-spacing: -0.03em;
    color: var(--color-gold); /* Ensure high contrast on deep navy */
    margin-bottom: 20px;
}

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

.page-tin-tuc__hero-section {
    padding-top: 10px; /* Minimal top padding, body handles header offset */
    padding-bottom: 60px;
    background-color: var(--color-deep-navy);
}

.page-tin-tuc__hero-container {
    max-width: 1170px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    gap: 40px;
    padding: 40px 16px;
    flex-wrap: wrap;
}

.page-tin-tuc__hero-content {
    flex: 1 1 50%;
    min-width: 300px;
}

.page-tin-tuc__hero-image {
    flex: 1 1 40%;
    text-align: center;
    min-width: 300px;
}

.page-tin-tuc__hero-side-image {
    max-width: 100%;
    height: auto;
    display: block;
    border-radius: 8px;
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.4);
}

.page-tin-tuc__cta-buttons {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
    margin-top: 30px;
}

.page-tin-tuc__btn-primary,
.page-tin-tuc__btn-secondary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 28px;
    border-radius: 8px;
    font-size: 1.1em;
    font-weight: bold;
    text-decoration: none;
    transition: all 0.3s ease;
    box-sizing: border-box;
    max-width: 100%;
    white-space: normal;
    word-wrap: break-word;
}

.page-tin-tuc__btn-primary {
    background: var(--btn-gradient);
    color: var(--color-text-main);
    border: 2px solid transparent;
}

.page-tin-tuc__btn-primary:hover {
    background: linear-gradient(180deg, #1144A6 0%, #2B73F6 100%);
    box-shadow: 0 0 15px var(--color-glow);
}

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

.page-tin-tuc__btn-secondary:hover {
    background-color: var(--color-primary);
    color: var(--color-text-main);
    box-shadow: 0 0 15px rgba(29, 95, 209, 0.5);
}

.page-tin-tuc__news-list-section {
    background-color: var(--color-card-bg);
    padding: 60px 0;
}

.page-tin-tuc__news-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    margin-bottom: 40px;
}

.page-tin-tuc__news-card {
    background-color: var(--color-deep-navy);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border: 1px solid var(--color-border);
}

.page-tin-tuc__news-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.5);
}

.page-tin-tuc__news-card-media {
    width: 100%;
    height: 200px; /* Fixed height for consistency */
    overflow: hidden;
}

.page-tin-tuc__news-card-media img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.3s ease;
}

.page-tin-tuc__news-card:hover .page-tin-tuc__news-card-media img {
    transform: scale(1.05);
}

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

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

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

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

.page-tin-tuc__news-card-meta {
    font-size: 0.9em;
    color: var(--color-text-secondary);
    margin-bottom: 15px;
}

.page-tin-tuc__news-card-excerpt {
    font-size: 1em;
    color: var(--color-text-secondary);
    margin-bottom: 20px;
}

.page-tin-tuc__read-more-btn {
    display: inline-block;
    color: var(--color-glow);
    text-decoration: none;
    font-weight: bold;
    transition: color 0.3s ease;
}

.page-tin-tuc__read-more-btn:hover {
    text-decoration: underline;
    color: var(--color-gold);
}

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

.page-tin-tuc__featured-article-section {
    background-color: var(--color-deep-navy);
    padding: 60px 0;
}

.page-tin-tuc__featured-content {
    display: flex;
    gap: 40px;
    align-items: flex-start;
    flex-wrap: wrap;
}

.page-tin-tuc__featured-media {
    flex: 1 1 45%;
    min-width: 300px;
}

.page-tin-tuc__featured-media img {
    max-width: 100%;
    height: auto;
    display: block;
    border-radius: 8px;
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.4);
}

.page-tin-tuc__featured-text {
    flex: 1 1 50%;
    min-width: 300px;
    color: var(--color-text-secondary);
}

.page-tin-tuc__featured-title {
    font-size: 2em;
    color: var(--color-gold);
    margin-bottom: 15px;
    line-height: 1.3;
}

.page-tin-tuc__featured-meta {
    font-size: 0.9em;
    color: var(--color-text-secondary);
    margin-bottom: 20px;
}

.page-tin-tuc__featured-text p {
    margin-bottom: 1em;
}

.page-tin-tuc__cta-section {
    padding: 60px 0;
}

.page-tin-tuc__dark-bg {
    background-color: var(--color-primary);
    border-radius: 12px;
    text-align: center;
    padding: 40px;
}

.page-tin-tuc__text-main {
    color: var(--color-text-main);
}

.page-tin-tuc__text-secondary {
    color: var(--color-text-secondary);
}

.page-tin-tuc__faq-section {
    background-color: var(--color-card-bg);
    padding: 60px 0;
}

.page-tin-tuc__faq-items {
    max-width: 800px;
    margin: 0 auto;
}

.page-tin-tuc__faq-item {
    background-color: var(--color-deep-navy);
    border: 1px solid var(--color-border);
    border-radius: 8px;
    margin-bottom: 15px;
    overflow: hidden;
    transition: all 0.3s ease;
}

.page-tin-tuc__faq-item[open] {
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
}

.page-tin-tuc__faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px;
    font-size: 1.2em;
    font-weight: bold;
    color: var(--color-text-main);
    cursor: pointer;
    list-style: none;
    position: relative;
}

.page-tin-tuc__faq-question::-webkit-details-marker {
    display: none;
}

.page-tin-tuc__faq-question::marker {
    display: none;
}

.page-tin-tuc__faq-qtext {
    flex-grow: 1;
    color: var(--color-gold);
}

.page-tin-tuc__faq-toggle {
    font-size: 1.5em;
    line-height: 1;
    margin-left: 15px;
    color: var(--color-glow);
}

.page-tin-tuc__faq-answer {
    padding: 0 20px 20px;
    color: var(--color-text-secondary);
    font-size: 1em;
}

.page-tin-tuc__faq-answer p {
    margin-bottom: 1em;
}

/* Responsive Styles */
@media (max-width: 1024px) {
    .page-tin-tuc__hero-container,
    .page-tin-tuc__featured-content {
        flex-direction: column;
        align-items: center;
    }

    .page-tin-tuc__hero-content,
    .page-tin-tuc__hero-image,
    .page-tin-tuc__featured-media,
    .page-tin-tuc__featured-text {
        flex: 1 1 100%;
        max-width: 100%;
    }

    .page-tin-tuc__main-title {
        font-size: 2.2em;
    }

    .page-tin-tuc__section-title {
        font-size: 2em;
    }

    .page-tin-tuc__news-card-media {
        height: 180px;
    }
}

@media (max-width: 768px) {
    .page-tin-tuc__hero-section {
        padding-top: 10px !important;
    }

    .page-tin-tuc__hero-container {
        padding: 20px 15px;
        flex-direction: column-reverse; /* Image at top, content below */
    }

    .page-tin-tuc__main-title {
        font-size: 1.8em;
        text-align: center;
    }

    .page-tin-tuc__description {
        text-align: center;
        font-size: 1em;
    }

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

    .page-tin-tuc__btn-primary,
    .page-tin-tuc__btn-secondary {
        width: 100% !important;
        max-width: 100% !important;
        padding: 12px 15px;
        font-size: 1em;
        white-space: normal !important;
        word-wrap: break-word !important;
    }

    .page-tin-tuc__container {
        padding: 30px 15px;
        width: 100% !important;
        max-width: 100% !important;
        box-sizing: border-box !important;
    }

    .page-tin-tuc__section-title {
        font-size: 1.8em;
        margin-bottom: 30px;
    }

    .page-tin-tuc__news-list-section,
    .page-tin-tuc__featured-article-section,
    .page-tin-tuc__cta-section,
    .page-tin-tuc__faq-section {
        padding: 40px 0;
    }

    .page-tin-tuc__news-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .page-tin-tuc__news-card-media {
        height: 160px;
    }

    .page-tin-tuc__news-card-title {
        font-size: 1.2em;
    }

    .page-tin-tuc__featured-content {
        flex-direction: column;
    }

    .page-tin-tuc__featured-title {
        font-size: 1.6em;
        text-align: center;
    }

    .page-tin-tuc__featured-meta,
    .page-tin-tuc__featured-text p {
        text-align: left;
    }

    .page-tin-tuc__featured-media img,
    .page-tin-tuc__hero-side-image,
    .page-tin-tuc__news-card-media img {
        max-width: 100% !important;
        width: 100% !important;
        height: auto !important;
        display: block !important;
    }

    .page-tin-tuc__faq-question {
        font-size: 1em;
        padding: 15px;
    }

    .page-tin-tuc__faq-toggle {
        font-size: 1.2em;
    }

    .page-tin-tuc__faq-answer {
        padding: 0 15px 15px;
    }
}

/* General image responsive rules */
.page-tin-tuc img {
    max-width: 100%;
    height: auto;
    display: block;
}

@media (max-width: 768px) {
    .page-tin-tuc img {
        max-width: 100% !important;
        width: 100% !important;
        height: auto !important;
    }
    
    .page-tin-tuc__section,
    .page-tin-tuc__card,
    .page-tin-tuc__container {
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
        padding-left: 15px;
        padding-right: 15px;
    }
}