/* Biến màu sắc */
:root {
    --page-tin-tuc-primary-color: #2F6BFF;
    --page-tin-tuc-secondary-color: #6FA3FF;
    --page-tin-tuc-text-main: #1F2D3D;
    --page-tin-tuc-text-dark: #000000;
    --page-tin-tuc-card-bg: #FFFFFF;
    --page-tin-tuc-background: #F4F7FB;
    --page-tin-tuc-border: #D6E2FF;
    --page-tin-tuc-glow: #A5C4FF;
    --page-tin-tuc-button-gradient: linear-gradient(180deg, #4A8BFF 0%, #2F6BFF 100%);
}

.page-tin-tuc {
    font-family: 'Arial', sans-serif;
    color: var(--page-tin-tuc-text-main); /* Dựa trên body background #F4F7FB (light) */
    background-color: var(--page-tin-tuc-background);
}

.page-tin-tuc__section {
    padding: 40px 0;
    position: relative;
}

.page-tin-tuc__container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
}

.page-tin-tuc__section-header {
    text-align: center;
    margin-bottom: 40px;
}

.page-tin-tuc__section-title {
    font-size: clamp(28px, 4vw, 36px);
    color: var(--page-tin-tuc-text-dark);
    margin-bottom: 15px;
    font-weight: 700;
    line-height: 1.3;
}

.page-tin-tuc__section-intro {
    font-size: 18px;
    color: #555;
    max-width: 800px;
    margin: 0 auto;
    line-height: 1.6;
}

/* Hero Section */
.page-tin-tuc__hero-section {
    position: relative;
    width: 100%;
    min-height: 500px;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    align-items: center;
    text-align: center;
    padding-top: 10px; /* Small top padding, relying on body padding-top */
    overflow: hidden;
    background-color: var(--page-tin-tuc-primary-color);
}

.page-tin-tuc__hero-image-wrapper {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

.page-tin-tuc__hero-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.7;
}

.page-tin-tuc__hero-content {
    position: relative;
    z-index: 2;
    color: #fff;
    padding: 60px 15px;
    max-width: 900px;
    margin: 0 auto;
}

.page-tin-tuc__hero-title {
    font-size: clamp(32px, 5vw, 56px);
    font-weight: 800;
    margin-bottom: 20px;
    line-height: 1.2;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.page-tin-tuc__hero-description {
    font-size: clamp(16px, 2vw, 22px);
    margin-bottom: 30px;
    line-height: 1.5;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

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

/* Buttons */
.page-tin-tuc__btn-primary,
.page-tin-tuc__btn-secondary,
.page-tin-tuc__hero-button,
.page-tin-tuc__cta-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 28px;
    border-radius: 8px;
    font-size: 17px;
    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,
.page-tin-tuc__hero-button {
    background: var(--page-tin-tuc-button-gradient);
    color: #fff;
    border: 2px solid transparent;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.page-tin-tuc__btn-primary:hover,
.page-tin-tuc__hero-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
    opacity: 0.9;
}

.page-tin-tuc__btn-secondary {
    background: var(--page-tin-tuc-card-bg);
    color: var(--page-tin-tuc-primary-color);
    border: 2px solid var(--page-tin-tuc-primary-color);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.page-tin-tuc__btn-secondary:hover {
    transform: translateY(-3px);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
    background: var(--page-tin-tuc-primary-color);
    color: #fff;
}

.page-tin-tuc__btn-text {
    color: var(--page-tin-tuc-primary-color);
    text-decoration: none;
    font-weight: 600;
    transition: color 0.3s ease;
}

.page-tin-tuc__btn-text:hover {
    color: var(--page-tin-tuc-secondary-color);
    text-decoration: underline;
}

/* News Grid 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: var(--page-tin-tuc-card-bg);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
    display: flex;
    flex-direction: column;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.page-tin-tuc__news-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
}

.page-tin-tuc__card-image-wrapper {
    width: 100%;
    height: 220px;
    overflow: hidden;
}

.page-tin-tuc__card-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

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

.page-tin-tuc__card-content {
    padding: 25px;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.page-tin-tuc__card-date {
    font-size: 14px;
    color: #888;
    margin-bottom: 10px;
    display: block;
}

.page-tin-tuc__card-title {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 15px;
    line-height: 1.4;
}

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

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

.page-tin-tuc__card-description {
    font-size: 16px;
    color: #666;
    line-height: 1.6;
    margin-bottom: 20px;
    flex-grow: 1;
}

.page-tin-tuc__card-readmore {
    align-self: flex-start;
    font-size: 15px;
}

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

/* Why Choose Section */
.page-tin-tuc__why-choose-section {
    background-color: #F4F7FB;
}

.page-tin-tuc__feature-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    list-style: none;
    padding: 0;
    margin-top: 40px;
    margin-bottom: 40px;
}

.page-tin-tuc__feature-item {
    background: var(--page-tin-tuc-card-bg);
    padding: 30px;
    border-radius: 12px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.06);
    text-align: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.page-tin-tuc__feature-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
}

.page-tin-tuc__feature-heading {
    font-size: 22px;
    color: var(--page-tin-tuc-primary-color);
    margin-bottom: 15px;
    font-weight: 700;
}

.page-tin-tuc__feature-description {
    font-size: 16px;
    color: #555;
    line-height: 1.6;
}

/* FAQ Section */
.page-tin-tuc__faq-section {
    background-color: var(--page-tin-tuc-background);
}

.page-tin-tuc__faq-list {
    margin-top: 40px;
}

details.page-tin-tuc__faq-item {
  margin-bottom: 15px;
  border-radius: 5px;
  border: 1px solid var(--page-tin-tuc-border);
  overflow: hidden;
  background: var(--page-tin-tuc-card-bg);
}
details.page-tin-tuc__faq-item summary.page-tin-tuc__faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 20px;
  cursor: pointer;
  user-select: none;
  list-style: none;
  transition: background-color 0.3s ease;
}
details.page-tin-tuc__faq-item summary.page-tin-tuc__faq-question::-webkit-details-marker {
  display: none;
}
details.page-tin-tuc__faq-item summary.page-tin-tuc__faq-question:hover {
  background: #f5f5f5;
}
.page-tin-tuc__faq-qtext {
  flex: 1;
  font-size: 17px;
  font-weight: 600;
  line-height: 1.5;
  text-align: left;
  color: var(--page-tin-tuc-text-main);
}
.page-tin-tuc__faq-toggle {
  font-size: 24px;
  font-weight: bold;
  color: var(--page-tin-tuc-primary-color);
  flex-shrink: 0;
  margin-left: 15px;
  width: 28px;
  text-align: center;
}
details.page-tin-tuc__faq-item .page-tin-tuc__faq-answer {
  padding: 0 20px 20px;
  background: #f9f9f9;
  border-radius: 0 0 5px 5px;
  color: #555;
  line-height: 1.6;
}

/* Call to Action Section */
.page-tin-tuc__cta-section {
    background-color: var(--page-tin-tuc-primary-color);
    color: #fff;
    text-align: center;
    padding: 60px 0;
}

.page-tin-tuc__cta-section .page-tin-tuc__section-title {
    color: #fff;
}

.page-tin-tuc__cta-section .page-tin-tuc__section-intro {
    color: #e0e0e0;
}

.page-tin-tuc__cta-buttons {
    margin-top: 40px;
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
}

/* Responsive Design */
/* Mobile Specific Rules (max-width: 768px) */
@media (max-width: 768px) {
    .page-tin-tuc__container {
        padding: 0 15px;
        width: 100% !important;
        max-width: 100% !important;
        box-sizing: border-box !important;
        overflow: hidden !important;
    }

    .page-tin-tuc__section {
        padding: 30px 0;
    }

    .page-tin-tuc__section-title {
        font-size: 24px;
        margin-bottom: 10px;
        line-height: 1.4;
    }

    .page-tin-tuc__section-intro {
        font-size: 16px;
        padding: 0 10px;
    }

    /* HERO Section Mobile */
    .page-tin-tuc__hero-section {
        min-height: 400px;
        padding-top: 10px; /* Ensure small top padding */
        justify-content: center;
    }
    .page-tin-tuc__hero-image-wrapper {
        height: 100%;
    }
    .page-tin-tuc__hero-image {
        object-fit: contain !important; /* Prevent cropping on mobile */
        aspect-ratio: unset !important; /* Allow natural aspect ratio */
        width: 100% !important;
        height: auto !important;
    }
    .page-tin-tuc__hero-content {
        padding: 30px 15px;
    }
    .page-tin-tuc__hero-title {
        font-size: 28px;
        margin-bottom: 15px;
    }
    .page-tin-tuc__hero-description {
        font-size: 15px;
        margin-bottom: 20px;
    }
    .page-tin-tuc__hero-buttons {
        flex-direction: column;
        gap: 15px;
    }

    /* News Grid Section Mobile */
    .page-tin-tuc__news-grid {
        grid-template-columns: 1fr;
        gap: 25px;
        overflow-x: hidden !important; /* Prevent horizontal scroll */
    }
    .page-tin-tuc__news-card {
        margin: 0 10px;
    }
    .page-tin-tuc__card-image-wrapper {
        height: 180px;
    }
    .page-tin-tuc__card-content {
        padding: 20px;
    }
    .page-tin-tuc__card-title {
        font-size: 18px;
    }
    .page-tin-tuc__card-description {
        font-size: 15px;
    }

    /* Why Choose Section Mobile */
    .page-tin-tuc__feature-list {
        grid-template-columns: 1fr;
        gap: 25px;
        margin-top: 30px;
        margin-bottom: 30px;
    }
    .page-tin-tuc__feature-item {
        padding: 25px;
        margin: 0 10px;
    }
    .page-tin-tuc__feature-heading {
        font-size: 20px;
    }

    /* FAQ Section Mobile */
    details.page-tin-tuc__faq-item summary.page-tin-tuc__faq-question {
        padding: 15px;
    }
    .page-tin-tuc__faq-qtext {
        font-size: 16px;
    }
    .page-tin-tuc__faq-toggle {
        font-size: 20px;
        width: 24px;
        margin-left: 10px;
    }
    details.page-tin-tuc__faq-item .page-tin-tuc__faq-answer {
        padding: 0 15px 15px;
    }

    /* CTA Section Mobile */
    .page-tin-tuc__cta-section {
        padding: 40px 0;
    }
    .page-tin-tuc__cta-buttons {
        flex-direction: column;
        gap: 15px;
        margin-top: 30px;
    }
    .page-tin-tuc__cta-button,
    .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;
    }
    .page-tin-tuc__cta-buttons,
    .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;
    }

    /* Universal Image Responsive */
    .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,
    .page-tin-tuc__news-card {
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
    }
}

/* Tablet Specific Rules (max-width: 1024px) - Adjust as needed, often similar to mobile or slightly wider */
@media (max-width: 1024px) {
    .page-tin-tuc__container {
        padding: 0 20px;
    }
    .page-tin-tuc__news-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .page-tin-tuc__feature-list {
        grid-template-columns: repeat(2, 1fr);
    }
    .page-tin-tuc__hero-title {
        font-size: 44px;
    }
    .page-tin-tuc__hero-description {
        font-size: 18px;
    }
}