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

.page-tin-tuc {
    font-family: Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-main); /* Light text for dark body background */
    background-color: var(--deep-navy); /* Ensure consistency if body background is not fully propagated */
    padding-bottom: 40px;
}

.page-tin-tuc__container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    box-sizing: border-box;
}

/* --- Hero Section --- */
.page-tin-tuc__hero-section {
    padding-top: 10px; /* Small top padding, relying on body padding for header offset */
    margin-bottom: 40px;
    position: relative;
    overflow: hidden;
}

.page-tin-tuc__hero-content-wrapper {
    display: flex;
    flex-direction: column; /* Image on top, text below */
    align-items: center;
    justify-content: center;
    text-align: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

.page-tin-tuc__hero-image {
    width: 100%;
    height: auto;
    max-width: 1200px;
    border-radius: 10px;
    object-fit: cover;
    margin-bottom: 30px;
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.3);
}

.page-tin-tuc__hero-text-block {
    max-width: 800px;
    padding: 0 20px;
}

.page-tin-tuc__main-title {
    font-size: 2.8em;
    font-weight: 700;
    color: var(--gold-color);
    margin-bottom: 15px;
    line-height: 1.2;
    text-shadow: 0 2px 4px rgba(0,0,0,0.5);
}

.page-tin-tuc__description {
    font-size: 1.1em;
    color: var(--text-secondary);
    margin-bottom: 30px;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.page-tin-tuc__cta-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
}

.page-tin-tuc__btn {
    display: inline-block;
    padding: 14px 30px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 700;
    font-size: 1em;
    transition: all 0.3s ease;
    cursor: pointer;
    text-align: center;
    max-width: 100%; /* Ensure buttons don't overflow */
    box-sizing: border-box;
    white-space: normal;
    word-wrap: break-word;
}

.page-tin-tuc__btn-primary {
    background: var(--button-gradient);
    color: var(--text-main);
    border: 2px solid #2B73F6;
    box-shadow: 0 4px 15px rgba(0, 100, 255, 0.4);
}

.page-tin-tuc__btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(0, 100, 255, 0.6);
}

.page-tin-tuc__btn-secondary {
    background: transparent;
    color: var(--gold-color);
    border: 2px solid var(--gold-color);
    box-shadow: 0 4px 10px rgba(242, 193, 78, 0.2);
}

.page-tin-tuc__btn-secondary:hover {
    background: rgba(242, 193, 78, 0.1);
    transform: translateY(-3px);
    box-shadow: 0 6px 15px rgba(242, 193, 78, 0.4);
}

/* --- General Section Styling --- */
.page-tin-tuc__section {
    padding: 50px 0;
    margin-bottom: 30px;
    background-color: var(--deep-navy);
}

.page-tin-tuc__section-title {
    font-size: 2.2em;
    color: var(--gold-color);
    text-align: center;
    margin-bottom: 20px;
    font-weight: 700;
    text-shadow: 0 1px 3px rgba(0,0,0,0.4);
}

.page-tin-tuc__section-description {
    font-size: 1.05em;
    color: var(--text-secondary);
    text-align: center;
    max-width: 900px;
    margin: 0 auto 40px auto;
    line-height: 1.7;
}

/* --- Latest News Section --- */
.page-tin-tuc__news-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-bottom: 40px;
}

.page-tin-tuc__news-card {
    background-color: var(--card-bg);
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border: 1px solid var(--border-color);
}

.page-tin-tuc__news-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.3);
}

.page-tin-tuc__news-thumbnail img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    display: block;
}

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

.page-tin-tuc__news-date {
    font-size: 0.9em;
    color: var(--text-secondary);
    margin-bottom: 10px;
    display: block;
}

.page-tin-tuc__news-title {
    font-size: 1.4em;
    font-weight: 600;
    margin-bottom: 15px;
    line-height: 1.3;
}

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

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

.page-tin-tuc__news-excerpt {
    font-size: 0.95em;
    color: var(--text-secondary);
    margin-bottom: 20px;
}

.page-tin-tuc__read-more {
    display: inline-block;
    color: var(--secondary-color);
    text-decoration: none;
    font-weight: 600;
    transition: color 0.3s ease;
}

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

.page-tin-tuc__view-all-button-wrapper {
    text-align: center;
}

/* --- Info Section (Why Trust) --- */
.page-tin-tuc__features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.page-tin-tuc__feature-item {
    background-color: var(--card-bg);
    padding: 30px;
    border-radius: 10px;
    text-align: center;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    border: 1px solid var(--border-color);
}

.page-tin-tuc__feature-title {
    font-size: 1.5em;
    color: var(--gold-color);
    margin-bottom: 15px;
    font-weight: 600;
}

.page-tin-tuc__feature-text {
    font-size: 1em;
    color: var(--text-secondary);
}

/* --- Promo Section --- */
.page-tin-tuc__promo-box {
    display: flex;
    align-items: center;
    background: linear-gradient(90deg, var(--primary-color) 0%, #1D5FD1 100%);
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
    border: 1px solid var(--border-color);
}

.page-tin-tuc__promo-content {
    padding: 40px;
    flex: 1;
    text-align: left;
}

.page-tin-tuc__promo-title {
    font-size: 2em;
    color: var(--text-main);
    margin-bottom: 20px;
    line-height: 1.2;
    font-weight: 700;
}

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

.page-tin-tuc__promo-cta {
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
}

.page-tin-tuc__promo-image-wrapper {
    flex: 1;
    min-width: 300px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.page-tin-tuc__promo-image-wrapper img {
    width: 100%;
    height: auto;
    border-radius: 10px;
    object-fit: cover;
    max-width: 800px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
}

/* --- Additional Content / Related Articles --- */
.page-tin-tuc__related-articles-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.page-tin-tuc__related-card {
    background-color: var(--card-bg);
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border: 1px solid var(--border-color);
}

.page-tin-tuc__related-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.3);
}

.page-tin-tuc__related-thumbnail img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    display: block;
}

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

.page-tin-tuc__related-title {
    font-size: 1.3em;
    font-weight: 600;
    margin-bottom: 15px;
    line-height: 1.3;
}

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

.page-tin-tuc__related-title a:hover {
    color: var(--gold-color);
}

.page-tin-tuc__related-excerpt {
    font-size: 0.95em;
    color: var(--text-secondary);
    margin-bottom: 20px;
}

/* --- Bottom CTA Section --- */
.page-tin-tuc__cta-bottom-section {
    padding: 60px 0;
    background-color: var(--primary-color);
    text-align: center;
    border-radius: 15px;
    margin: 40px auto;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
    max-width: 1200px;
}

/* --- Responsive Styles --- */

/* Tablet (max-width: 1024px) */
@media (max-width: 1024px) {
    .page-tin-tuc__main-title {
        font-size: 2.4em;
    }

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

    .page-tin-tuc__section-title {
        font-size: 1.8em;
    }

    .page-tin-tuc__section-description {
        font-size: 0.95em;
    }

    .page-tin-tuc__promo-box {
        flex-direction: column;
    }

    .page-tin-tuc__promo-content {
        text-align: center;
        padding: 30px;
    }

    .page-tin-tuc__promo-cta {
        justify-content: center;
    }

    .page-tin-tuc__promo-image-wrapper {
        padding: 0 30px 30px;
    }
}

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

    .page-tin-tuc__container {
        padding-left: 15px;
        padding-right: 15px;
    }

    /* 1. Top Section Title + CTA */
    .page-tin-tuc__hero-section {
        padding-top: 10px !important; /* Small top padding, relying on body padding for header offset */
        margin-bottom: 30px;
    }

    .page-tin-tuc__hero-image {
        margin-bottom: 20px;
    }

    .page-tin-tuc__hero-text-block {
        padding: 0 10px;
    }

    .page-tin-tuc__main-title {
        font-size: 1.8em;
        margin-bottom: 10px;
    }

    .page-tin-tuc__description {
        font-size: 0.9em;
        margin-bottom: 20px;
    }

    .page-tin-tuc__cta-buttons {
        flex-direction: column; /* Stack buttons vertically */
        gap: 10px;
        padding: 0 10px;
    }

    .page-tin-tuc__btn {
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
        white-space: normal !important;
        word-wrap: break-word !important;
        padding-left: 15px;
        padding-right: 15px;
        font-size: 0.95em;
    }

    /* 2. Single Column Long Text Container (General sections) */
    .page-tin-tuc__section {
        padding: 30px 0;
        margin-bottom: 20px;
    }

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

    .page-tin-tuc__section-description {
        font-size: 0.9em;
        margin-bottom: 30px;
    }

    .page-tin-tuc__news-grid,
    .page-tin-tuc__features-grid,
    .page-tin-tuc__related-articles-grid {
        grid-template-columns: 1fr; /* Single column layout */
        gap: 20px;
        margin-top: 20px;
    }

    .page-tin-tuc__news-card,
    .page-tin-tuc__feature-item,
    .page-tin-tuc__related-card {
        padding: 0; /* Remove padding from card itself, rely on container */
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
    }
    
    .page-tin-tuc__news-content,
    .page-tin-tuc__related-content {
        padding: 15px;
    }

    .page-tin-tuc__news-thumbnail img,
    .page-tin-tuc__related-thumbnail img {
         /* Adjust height for mobile */
    }

    .page-tin-tuc__news-title,
    .page-tin-tuc__related-title {
        font-size: 1.2em;
        margin-bottom: 10px;
    }

    .page-tin-tuc__promo-box {
        flex-direction: column;
        text-align: center;
        border-radius: 10px;
    }

    .page-tin-tuc__promo-content {
        padding: 25px;
    }

    .page-tin-tuc__promo-title {
        font-size: 1.5em;
        margin-bottom: 15px;
    }

    .page-tin-tuc__promo-text {
        font-size: 0.95em;
        margin-bottom: 25px;
    }

    .page-tin-tuc__promo-cta {
        flex-direction: column;
        gap: 10px;
    }

    .page-tin-tuc__promo-image-wrapper {
        padding: 0 15px 25px;
        min-width: unset;
    }

    .page-tin-tuc__cta-bottom-section {
        padding: 40px 0;
        margin: 30px auto;
        border-radius: 10px;
    }

    /* 3. Universal Images and Figure */
    .page-tin-tuc img {
        max-width: 100% !important;
        width: 100% !important;
        height: auto !important;
        display: block;
        box-sizing: border-box !important;
    }

    /* 4. Buttons and Button Containers (already covered in top section and promo section, but explicitly ensure for general) */
    .page-tin-tuc__button-group,
    .page-tin-tuc__btn-container {
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
        padding-left: 15px;
        padding-right: 15px;
        flex-wrap: wrap !important;
        gap: 10px;
    }

    /* Ensure any general button like elements adhere to rules */
    .page-tin-tuc a[class*="button"],
    .page-tin-tuc a[class*="btn"] {
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
        white-space: normal !important;
        word-wrap: break-word !important;
        padding-left: 15px;
        padding-right: 15px;
    }
}