:root {
    --primary-color: #C91F17;
    --secondary-color: #E53935;
    --button-gradient: linear-gradient(180deg, #FFD86A 0%, #E6B800 100%);
    --card-bg: #D32F2F;
    --background-color-main: #B71C1C;
    --text-main-color: #FFF5E1;
    --border-color-main: #F2B544;
    --glow-color: #FFCC66;
    --gold-color: #F4D34D;
    --deep-red-color: #7A0E0E;
}

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

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

/* Hero Section */
.page-tin-tuc__hero-section {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding-top: 10px; /* Small top padding, body handles header offset */
    padding-bottom: 40px;
    background-color: var(--deep-red-color);
    position: relative;
    overflow: hidden;
}

.page-tin-tuc__hero-image-wrapper {
    width: 100%;
    max-width: 100%;
    margin-bottom: 20px;
}

.page-tin-tuc__hero-image {
    width: 100%;
    height: auto;
    display: block;
    object-fit: cover;
    border-radius: 8px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
}

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

.page-tin-tuc__main-title {
    font-size: clamp(2em, 3.5vw, 3.2em);
    font-weight: 700;
    color: var(--gold-color);
    margin-bottom: 15px;
    line-height: 1.2;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
}

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

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

.page-tin-tuc__btn-primary,
.page-tin-tuc__btn-secondary {
    display: inline-block;
    padding: 14px 30px;
    border-radius: 30px;
    text-decoration: none;
    font-weight: 700;
    font-size: 1.05em;
    transition: all 0.3s ease;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
    white-space: normal;
    word-wrap: break-word;
    max-width: 100%;
    box-sizing: border-box;
}

.page-tin-tuc__btn-primary {
    background: var(--button-gradient);
    color: var(--deep-red-color);
    border: 2px solid var(--gold-color);
}

.page-tin-tuc__btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 15px rgba(0, 0, 0, 0.3);
    opacity: 0.9;
}

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

.page-tin-tuc__btn-secondary:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 15px rgba(0, 0, 0, 0.3);
    background-color: rgba(255, 255, 255, 0.1);
}

/* Latest News Section */
.page-tin-tuc__latest-news-section {
    padding: 60px 0;
    background-color: var(--background-color-main);
}

.page-tin-tuc__section-title {
    font-size: clamp(1.8em, 3vw, 2.5em);
    color: var(--gold-color);
    text-align: center;
    margin-bottom: 25px;
    text-shadow: 1px 1px 3px rgba(0, 0, 0, 0.4);
}

.page-tin-tuc__section-intro {
    font-size: 1.05em;
    color: var(--text-main-color);
    text-align: center;
    max-width: 900px;
    margin: 0 auto 40px auto;
    padding: 0 15px;
}

.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-radius: 12px;
    overflow: hidden;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.4);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    display: flex;
    flex-direction: column;
}

.page-tin-tuc__news-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.5);
}

.page-tin-tuc__news-link {
    text-decoration: none;
    color: inherit;
    display: flex;
    flex-direction: column;
    height: 100%;
}

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

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

.page-tin-tuc__news-title {
    font-size: 1.3em;
    font-weight: 600;
    color: var(--gold-color);
    margin-bottom: 10px;
    line-height: 1.3;
}

.page-tin-tuc__news-excerpt {
    font-size: 0.95em;
    color: var(--text-main-color);
    margin-bottom: 15px;
    flex-grow: 1;
}

.page-tin-tuc__news-date {
    font-size: 0.85em;
    color: rgba(255, 245, 225, 0.7);
    text-align: right;
}

.page-tin-tuc__view-all-button-wrapper {
    text-align: center;
    margin-top: 50px;
}

/* Categories Section */
.page-tin-tuc__categories-section {
    padding: 60px 0;
    background-color: var(--deep-red-color);
}

.page-tin-tuc__categories-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 25px;
}

.page-tin-tuc__category-card {
    background-color: var(--card-bg);
    border-radius: 12px;
    padding: 25px;
    text-align: center;
    text-decoration: none;
    color: var(--text-main-color);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.page-tin-tuc__category-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.4);
}

.page-tin-tuc__category-icon {
    width: 80px;
    height: 80px;
    margin-bottom: 15px;
    object-fit: contain;
}

.page-tin-tuc__category-title {
    font-size: 1.15em;
    font-weight: 600;
    color: var(--gold-color);
    margin: 0;
}

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

.page-tin-tuc__faq-list {
    max-width: 900px;
    margin: 0 auto;
    padding: 0 15px;
}

.page-tin-tuc__faq-item {
    background-color: var(--card-bg);
    margin-bottom: 15px;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
    overflow: hidden;
}

.page-tin-tuc__faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 18px 25px;
    font-size: 1.1em;
    font-weight: 600;
    color: var(--gold-color);
    cursor: pointer;
    list-style: none; /* For <summary> */
}

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

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

.page-tin-tuc__faq-toggle {
    font-size: 1.5em;
    font-weight: 300;
    line-height: 1;
    margin-left: 15px;
    transition: transform 0.3s ease;
}

.page-tin-tuc__faq-item[open] .page-tin-tuc__faq-toggle {
    transform: rotate(45deg);
}

.page-tin-tuc__faq-answer {
    padding: 0 25px 20px 25px;
    font-size: 0.95em;
    color: var(--text-main-color);
    line-height: 1.6;
}

/* CTA Section (Bottom) */
.page-tin-tuc__cta-section {
    padding: 60px 0;
    background-color: var(--deep-red-color);
    text-align: center;
}

.page-tin-tuc__cta-content {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 20px;
}

.page-tin-tuc__cta-title {
    font-size: clamp(1.8em, 3vw, 2.5em);
    color: var(--gold-color);
    margin-bottom: 15px;
    text-shadow: 1px 1px 3px rgba(0, 0, 0, 0.4);
}

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

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

/* Responsive Styles */
@media (max-width: 1024px) {
    .page-tin-tuc__container {
        padding: 20px 30px;
    }

    .page-tin-tuc__news-grid {
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    }

    .page-tin-tuc__categories-grid {
        grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    }
}

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

    .page-tin-tuc__container {
        padding-left: 15px !important;
        padding-right: 15px !important;
        width: 100% !important;
        max-width: 100% !important;
        box-sizing: border-box !important;
        overflow-x: hidden;
    }

    /* Hero Section */
    .page-tin-tuc__hero-section {
        padding-top: 10px !important;
        padding-bottom: 30px;
    }

    .page-tin-tuc__hero-image {
        object-fit: contain !important; /* Ensure image is not cropped on mobile */
        height: auto !important;
        max-height: none !important; /* Remove any max-height constraints */
        aspect-ratio: unset !important;
        width: 100% !important;
        max-width: 100% !important;
    }

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

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

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

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

    .page-tin-tuc__btn-primary,
    .page-tin-tuc__btn-secondary,
    .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;
    }

    /* Latest News Section */
    .page-tin-tuc__latest-news-section {
        padding: 40px 0;
    }

    .page-tin-tuc__section-title {
        font-size: 1.8em;
        margin-bottom: 20px;
    }

    .page-tin-tuc__section-intro {
        font-size: 0.95em;
        margin-bottom: 30px;
        padding: 0 15px;
    }

    .page-tin-tuc__news-grid {
        grid-template-columns: 1fr; /* Single column on mobile */
        gap: 25px;
    }

    .page-tin-tuc__news-thumbnail {
        height: 180px;
        max-width: 100% !important;
        width: 100% !important;
        height: auto !important;
    }

    .page-tin-tuc__news-title {
        font-size: 1.15em;
    }

    .page-tin-tuc__news-excerpt {
        font-size: 0.9em;
    }

    .page-tin-tuc__view-all-button-wrapper {
        margin-top: 40px;
        padding: 0 15px;
    }

    /* Categories Section */
    .page-tin-tuc__categories-section {
        padding: 40px 0;
    }

    .page-tin-tuc__categories-grid {
        grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); /* More compact for mobile */
        gap: 15px;
    }

    .page-tin-tuc__category-icon {
        width: 60px;
        height: 60px;
        max-width: 100% !important;
        width: 100% !important;
        height: auto !important;
    }

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

    /* FAQ Section */
    .page-tin-tuc__faq-section {
        padding: 40px 0;
    }

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

    .page-tin-tuc__faq-question {
        padding: 15px 20px;
        font-size: 1em;
    }

    .page-tin-tuc__faq-answer {
        padding: 0 20px 15px 20px;
        font-size: 0.9em;
    }

    /* CTA Section (Bottom) */
    .page-tin-tuc__cta-section {
        padding: 40px 0;
    }

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

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

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

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

    /* Universal image and container rules for mobile */
    .page-tin-tuc img {
        max-width: 100% !important;
        width: 100% !important;
        height: auto !important;
        display: block !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;
    }
}

@media (max-width: 480px) {
    .page-tin-tuc__news-grid {
        grid-template-columns: 1fr;
    }
    .page-tin-tuc__categories-grid {
        grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    }
    .page-tin-tuc__cta-buttons,
    .page-tin-tuc__cta-buttons-bottom {
        flex-direction: column;
        gap: 10px;
    }
}