:root {
    --primary-color: #017439;
    --secondary-color: #FFFFFF;
    --text-color-dark: #333333;
    --text-color-light: #ffffff;
    --button-register: #C30808;
    --button-login: #C30808;
    --button-text-yellow: #FFFF00;
    --background-color-default: #FFFFFF;
}

.page-tin-tuc {
    font-family: Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-color-dark); /* Default text color for light body background */
    background-color: var(--background-color-default);
}

/* Container for main content width */
.page-tin-tuc__container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
    box-sizing: border-box;
}

/* Hero Section */
.page-tin-tuc__hero-section {
    padding-top: 10px; /* Small top padding, relies on body padding-top from shared.css */
    padding-bottom: 40px;
    background-color: var(--background-color-default); /* Ensure light background for text */
    text-align: center;
}

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

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

.page-tin-tuc__hero-content-wrapper {
    padding: 0 15px;
}

.page-tin-tuc__main-title {
    font-size: clamp(2em, 4vw, 3.5em); /* Responsive font size for H1 */
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 20px;
    line-height: 1.2;
}

.page-tin-tuc__intro-text {
    font-size: 1.1em;
    margin-bottom: 30px;
    color: var(--text-color-dark);
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
}

.page-tin-tuc__cta-buttons {
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap; /* Allow wrapping on smaller screens */
    margin-top: 30px;
}

.page-tin-tuc__btn-primary,
.page-tin-tuc__btn-secondary {
    display: inline-block;
    padding: 12px 25px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: bold;
    font-size: 1em;
    transition: background-color 0.3s ease, color 0.3s ease;
    box-sizing: border-box;
    max-width: 100%; /* Ensure buttons don't overflow */
    white-space: normal; /* Allow text to wrap */
    word-wrap: break-word;
    text-align: center;
}

.page-tin-tuc__btn-primary {
    background-color: var(--button-register); /* Use register color for primary */
    color: var(--button-text-yellow); /* Use yellow for text on red button */
    border: 2px solid var(--button-register);
}

.page-tin-tuc__btn-primary:hover {
    background-color: #a30606;
    border-color: #a30606;
}

.page-tin-tuc__btn-secondary {
    background-color: var(--primary-color); /* Use primary color for secondary */
    color: var(--text-color-light); /* White text on green button */
    border: 2px solid var(--primary-color);
}

.page-tin-tuc__btn-secondary:hover {
    background-color: #005a2e;
    border-color: #005a2e;
}

/* News List Section */
.page-tin-tuc__news-list-section {
    padding: 60px 0;
    background-color: var(--background-color-default);
}

.page-tin-tuc__section-title {
    font-size: 2.5em;
    color: var(--primary-color);
    text-align: center;
    margin-bottom: 20px;
    font-weight: 700;
}

.page-tin-tuc__section-description {
    font-size: 1.1em;
    text-align: center;
    max-width: 900px;
    margin: 0 auto 50px;
    color: var(--text-color-dark);
}

.page-tin-tuc__news-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-bottom: 50px;
}

.page-tin-tuc__news-card {
    background-color: var(--secondary-color);
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
    border: 1px solid #e0e0e0; /* Added for better contrast on white background */
}

.page-tin-tuc__news-card:hover {
    transform: translateY(-5px);
}

.page-tin-tuc__card-link {
    text-decoration: none;
    color: inherit;
    display: block;
}

.page-tin-tuc__card-media {
    width: 100%;
    height: 250px; /* Fixed height for consistent card image size */
    overflow: hidden;
}

.page-tin-tuc__card-media img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

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

.page-tin-tuc__card-title {
    font-size: 1.4em;
    color: var(--primary-color);
    margin-bottom: 10px;
    line-height: 1.3;
}

.page-tin-tuc__card-meta {
    font-size: 0.9em;
    color: #777;
    margin-bottom: 15px;
}

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

.page-tin-tuc__read-more-btn {
    display: inline-block;
    color: var(--primary-color);
    font-weight: bold;
    text-decoration: none;
    border-bottom: 2px solid var(--primary-color);
    padding-bottom: 2px;
}

.page-tin-tuc__read-more-btn:hover {
    color: #005a2e;
    border-color: #005a2e;
}

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

.page-tin-tuc__additional-content {
    font-size: 1.05em;
    line-height: 1.7;
    margin-top: 50px;
    padding: 0 15px;
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
    text-align: justify;
}

/* CTA Promo Section */
.page-tin-tuc__cta-promo-section {
    padding: 80px 0;
    background-color: var(--primary-color); /* Dark background */
    color: var(--text-color-light); /* Light text */
    text-align: center;
}

.page-tin-tuc__cta-content {
    max-width: 900px;
    margin: 0 auto;
}

.page-tin-tuc__cta-title {
    font-size: 2.2em;
    margin-bottom: 20px;
    font-weight: 700;
    color: var(--text-color-light);
}

.page-tin-tuc__cta-description {
    font-size: 1.1em;
    margin-bottom: 40px;
    line-height: 1.7;
    color: var(--text-color-light);
}

/* FAQ Section */
.page-tin-tuc__faq-section {
    padding: 60px 0;
    background-color: var(--background-color-default);
}

.page-tin-tuc__faq-list {
    max-width: 900px;
    margin: 0 auto;
}

.page-tin-tuc__faq-item {
    background-color: var(--secondary-color);
    border: 1px solid #e0e0e0;
    border-radius: 8px;
    margin-bottom: 15px;
    overflow: hidden;
}

.page-tin-tuc__faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 18px 25px;
    font-size: 1.2em;
    font-weight: bold;
    color: var(--primary-color);
    cursor: pointer;
    background-color: #f9f9f9;
    user-select: none;
    list-style: none; /* Remove default marker */
}

.page-tin-tuc__faq-question::-webkit-details-marker {
    display: none; /* Hide default marker for webkit browsers */
}

.page-tin-tuc__faq-qtext {
    flex-grow: 1;
}

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

.page-tin-tuc__faq-answer {
    padding: 0 25px 20px;
    font-size: 1em;
    color: var(--text-color-dark);
    line-height: 1.7;
    transition: max-height 0.3s ease-out, opacity 0.3s ease-out;
    max-height: 0;
    overflow: hidden;
    opacity: 0;
}

.page-tin-tuc__faq-item[open] .page-tin-tuc__faq-answer {
    max-height: 500px; /* Sufficiently large to show content */
    opacity: 1;
    padding-top: 10px;
}

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

/* --- Responsive styles --- */
@media (max-width: 1024px) {
    .page-tin-tuc__main-title {
        font-size: clamp(2em, 5vw, 3em);
    }
    .page-tin-tuc__section-title {
        font-size: 2em;
    }
    .page-tin-tuc__cta-title {
        font-size: 1.8em;
    }
    .page-tin-tuc__news-grid {
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    }
}


@media (max-width: 768px) {
    /* HERO Section */
    .page-tin-tuc__hero-section {
        padding-top: 10px !important; /* Small top padding, relies on body padding-top from shared.css */
        padding-bottom: 30px;
    }
    .page-tin-tuc__hero-image-wrapper {
        margin-bottom: 20px;
    }
    .page-tin-tuc__main-title {
        font-size: clamp(1.8em, 7vw, 2.5em); /* H1 size for mobile */
        margin-bottom: 15px;
    }
    .page-tin-tuc__intro-text {
        font-size: 1em;
        margin-bottom: 20px;
    }
    .page-tin-tuc__cta-buttons {
        flex-direction: column; /* Stack buttons vertically */
        gap: 15px;
        width: 100%;
        max-width: 100%;
        padding: 0 15px; /* Add padding to container */
        box-sizing: border-box;
    }
    .page-tin-tuc__btn-primary,
    .page-tin-tuc__btn-secondary {
        width: 100% !important; /* Full width for buttons */
        max-width: 100% !important;
        padding: 12px 15px !important; /* Adjust padding */
        white-space: normal !important;
        word-wrap: break-word !important;
        box-sizing: border-box !important;
    }

    /* News List Section */
    .page-tin-tuc__news-list-section {
        padding: 40px 0;
    }
    .page-tin-tuc__section-title {
        font-size: 1.8em;
        margin-bottom: 15px;
    }
    .page-tin-tuc__section-description {
        font-size: 1em;
        margin-bottom: 30px;
        padding: 0 15px;
    }
    .page-tin-tuc__news-grid {
        grid-template-columns: 1fr; /* Single column for news cards */
        gap: 20px;
        padding: 0 15px; /* Add padding to container */
    }
    .page-tin-tuc__news-card {
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
    }
    .page-tin-tuc__card-media {
        height: 200px; /* Adjust card image height */
    }
    .page-tin-tuc__card-title {
        font-size: 1.2em;
    }
    .page-tin-tuc__card-excerpt {
        font-size: 0.95em;
    }
    .page-tin-tuc__additional-content {
        font-size: 1em;
        padding: 0 15px;
    }
    .page-tin-tuc__view-all-button-wrapper {
        padding: 0 15px; /* Add padding to container */
    }

    /* CTA Promo Section */
    .page-tin-tuc__cta-promo-section {
        padding: 50px 0;
    }
    .page-tin-tuc__cta-title {
        font-size: 1.6em;
        margin-bottom: 15px;
        padding: 0 15px;
    }
    .page-tin-tuc__cta-description {
        font-size: 1em;
        margin-bottom: 30px;
        padding: 0 15px;
    }
    
    /* FAQ Section */
    .page-tin-tuc__faq-section {
        padding: 40px 0;
    }
    .page-tin-tuc__faq-question {
        font-size: 1.1em;
        padding: 15px 20px;
    }
    .page-tin-tuc__faq-answer {
        padding: 0 20px 15px;
    }
    .page-tin-tuc__faq-list {
        padding: 0 15px;
    }

    /* General image responsive styles for mobile */
    .page-tin-tuc img {
        max-width: 100% !important;
        width: 100% !important;
        height: auto !important;
        box-sizing: border-box !important;
    }
    .page-tin-tuc__container,
    .page-tin-tuc__news-list-section,
    .page-tin-tuc__cta-promo-section,
    .page-tin-tuc__faq-section {
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
        /* Padding handled by inner elements */
    }
}