/* style/blog.css */
/* body đã padding-top: var(--header-offset) từ shared.css; trang này không cần lặp lại */

:root {
    --page-blog-primary-color: #11A84E;
    --page-blog-secondary-color: #22C768;
    --page-blog-background-color: #08160F;
    --page-blog-card-background: #11271B;
    --page-blog-text-main: #F2FFF6;
    --page-blog-text-secondary: #A7D9B8;
    --page-blog-button-gradient: linear-gradient(180deg, #2AD16F 0%, #13994A 100%);
    --page-blog-border-color: #2E7A4E;
    --page-blog-glow-color: #57E38D;
    --page-blog-gold-color: #F2C14E;
    --page-blog-divider-color: #1E3A2A;
    --page-blog-deep-green: #0A4B2C;
}

.page-blog {
    color: var(--page-blog-text-main);
    background-color: var(--page-blog-background-color);
    font-family: Arial, sans-serif;
    line-height: 1.6;
}

.page-blog__hero-section {
    position: relative;
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 60px 20px;
    padding-top: 10px; /* Nhỏ hơn so với --header-offset để tránh trùng lặp */
    overflow: hidden;
}

.page-blog__hero-image-wrapper {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    overflow: hidden;
}

.page-blog__hero-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: brightness(0.5); /* Làm tối ảnh nền để chữ dễ đọc */
}

.page-blog__hero-content {
    position: relative;
    z-index: 1;
    max-width: 900px;
    margin: 0 auto;
    padding: 20px;
    background: rgba(0, 0, 0, 0.4); /* Nền tối nhẹ cho văn bản */
    border-radius: 10px;
}

.page-blog__main-title {
    font-size: clamp(2em, 4vw, 3.5em); /* Giới hạn kích thước chữ h1 */
    color: var(--page-blog-gold-color);
    margin-bottom: 20px;
    font-weight: bold;
    line-height: 1.2;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
}

.page-blog__hero-description {
    font-size: 1.2em;
    color: var(--page-blog-text-main);
    margin-bottom: 30px;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.page-blog__cta-buttons {
    display: flex;
    gap: 15px;
    justify-content: center;
    flex-wrap: wrap;
}

.page-blog__btn-primary,
.page-blog__btn-secondary {
    display: inline-block;
    padding: 12px 25px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: bold;
    transition: all 0.3s ease;
    box-sizing: border-box;
    max-width: 100%; /* Đảm bảo nút không tràn */
    white-space: normal; /* Cho phép chữ xuống dòng */
    word-wrap: break-word;
}

.page-blog__btn-primary {
    background: var(--page-blog-button-gradient);
    color: #ffffff; /* Nút chính dùng chữ trắng */
    border: 2px solid var(--page-blog-primary-color);
}

.page-blog__btn-primary:hover {
    background: linear-gradient(180deg, #13994A 0%, #2AD16F 100%);
    transform: translateY(-2px);
    box-shadow: 0 4px 10px rgba(var(--page-blog-glow-color), 0.4);
}

.page-blog__btn-secondary {
    background: transparent;
    color: var(--page-blog-primary-color);
    border: 2px solid var(--page-blog-primary-color);
}

.page-blog__btn-secondary:hover {
    background: var(--page-blog-primary-color);
    color: #ffffff;
    transform: translateY(-2px);
}

.page-blog__section {
    padding: 60px 20px;
    background-color: var(--page-blog-background-color);
}

.page-blog__container {
    max-width: 1200px;
    margin: 0 auto;
    box-sizing: border-box;
}

.page-blog__section-title {
    font-size: 2.5em;
    color: var(--page-blog-gold-color);
    text-align: center;
    margin-bottom: 40px;
    font-weight: bold;
    text-shadow: 1px 1px 3px rgba(0, 0, 0, 0.3);
}

.page-blog__text-block {
    font-size: 1.1em;
    color: var(--page-blog-text-secondary);
    margin-bottom: 20px;
    text-align: justify;
}

.page-blog__introduction-section {
    background-color: var(--page-blog-card-background);
}

.page-blog__featured-articles {
    background-color: var(--page-blog-background-color);
}

.page-blog__article-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-bottom: 40px;
}

.page-blog__article-card {
    background-color: var(--page-blog-card-background);
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    display: flex;
    flex-direction: column;
    height: 100%;
}

.page-blog__article-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.4);
}

.page-blog__article-image {
    width: 100%;
    height: 220px; /* Kích thước cố định cho hình ảnh bài viết */
    object-fit: cover;
    display: block;
}

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

.page-blog__card-title {
    font-size: 1.4em;
    color: var(--page-blog-gold-color);
    margin-bottom: 10px;
    font-weight: bold;
    line-height: 1.3;
}

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

.page-blog__card-title a:hover {
    color: var(--page-blog-glow-color);
}

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

.page-blog__card-description {
    font-size: 1em;
    color: var(--page-blog-text-main);
    margin-bottom: 20px;
    flex-grow: 1;
}

.page-blog__card-link {
    display: inline-block;
    color: var(--page-blog-glow-color);
    text-decoration: none;
    font-weight: bold;
    padding: 8px 0;
    transition: color 0.3s ease;
}

.page-blog__card-link:hover {
    text-decoration: underline;
    color: var(--page-blog-gold-color);
}

.page-blog__view-all-button-wrapper {
    text-align: center;
    margin-top: 20px;
}

.page-blog__guides-section {
    background-color: var(--page-blog-card-background);
}

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

.page-blog__guide-text {
    flex: 2;
}

.page-blog__guide-image-wrapper {
    flex: 1;
    min-width: 300px; /* Đảm bảo hình ảnh có kích thước tối thiểu */
}

.page-blog__guide-image {
    width: 100%;
    height: auto;
    border-radius: 8px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
    display: block;
}

.page-blog__guide-subtitle {
    font-size: 1.8em;
    color: var(--page-blog-primary-color);
    margin-top: 30px;
    margin-bottom: 15px;
    font-weight: bold;
}

.page-blog__news-promotions-section {
    background-color: var(--page-blog-background-color);
}

.page-blog__news-content {
    display: flex;
    gap: 40px;
    align-items: center;
}

.page-blog__news-image-wrapper {
    flex: 1;
}

.page-blog__news-image {
    width: 100%;
    height: auto;
    border-radius: 8px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
    display: block;
}

.page-blog__news-text {
    flex: 2;
}

.page-blog__safety-support-section {
    background-color: var(--page-blog-card-background);
}

.page-blog__safety-content {
    display: flex;
    gap: 40px;
    align-items: flex-start;
    flex-direction: row-reverse; /* Đảo ngược thứ tự cho phần này */
}

.page-blog__safety-text {
    flex: 2;
}

.page-blog__safety-image-wrapper {
    flex: 1;
    min-width: 300px; /* Đảm bảo hình ảnh có kích thước tối thiểu */
}

.page-blog__safety-image {
    width: 100%;
    height: auto;
    border-radius: 8px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
    display: block;
}

.page-blog__faq-section {
    background-color: var(--page-blog-background-color);
}

.page-blog__faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.page-blog__faq-item {
    background-color: var(--page-blog-card-background);
    border: 1px solid var(--page-blog-border-color);
    border-radius: 8px;
    margin-bottom: 15px;
    overflow: hidden;
    color: var(--page-blog-text-main);
}

.page-blog__faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 18px 25px;
    font-size: 1.2em;
    font-weight: bold;
    cursor: pointer;
    background-color: var(--page-blog-deep-green);
    color: var(--page-blog-text-main);
    transition: background-color 0.3s ease;
    user-select: none;
}

.page-blog__faq-question:hover {
    background-color: var(--page-blog-primary-color);
}

.page-blog__faq-item[open] > .page-blog__faq-question {
    background-color: var(--page-blog-primary-color);
    color: #ffffff;
}

.page-blog__faq-toggle {
    font-size: 1.5em;
    line-height: 1;
    margin-left: 15px;
    color: var(--page-blog-gold-color);
}

.page-blog__faq-item[open] > .page-blog__faq-question .page-blog__faq-toggle {
    color: #ffffff;
}

.page-blog__faq-answer {
    padding: 15px 25px 20px;
    font-size: 1em;
    color: var(--page-blog-text-secondary);
    background-color: var(--page-blog-card-background);
    border-top: 1px solid var(--page-blog-border-color);
}

.page-blog__faq-answer p {
    margin-bottom: 0;
}

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

.page-blog__faq-item summary::marker {
    display: none;
}

.page-blog__conclusion-section {
    background-color: var(--page-blog-deep-green);
    text-align: center;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .page-blog__main-title {
        font-size: clamp(2em, 5vw, 3em);
    }
    .page-blog__section-title {
        font-size: 2em;
    }
    .page-blog__guide-content,
    .page-blog__news-content,
    .page-blog__safety-content {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }
    .page-blog__safety-content {
        flex-direction: column; /* Đảm bảo đảo ngược lại thành cột trên mobile */
    }
    .page-blog__guide-text,
    .page-blog__news-text,
    .page-blog__safety-text {
        order: 2;
    }
    .page-blog__guide-image-wrapper,
    .page-blog__news-image-wrapper,
    .page-blog__safety-image-wrapper {
        order: 1;
        margin-bottom: 20px;
    }
}

@media (max-width: 768px) {
    .page-blog__hero-section {
        padding: 40px 15px;
        padding-top: 10px !important; /* body đã có padding-top */
    }
    .page-blog__section {
        padding: 30px 15px;
    }
    .page-blog__container,
    .page-blog__cta-buttons,
    .page-blog__button-group,
    .page-blog__btn-container {
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
        padding-left: 15px;
        padding-right: 15px;
        overflow: hidden !important; /* Đảm bảo không tràn */
    }

    /* Mobile image responsiveness */
    .page-blog img {
        max-width: 100% !important;
        width: 100% !important;
        height: auto !important;
        display: block !important;
    }
    
    /* Mobile button responsiveness */
    .page-blog__btn-primary,
    .page-blog__btn-secondary,
    .page-blog a[class*="button"],
    .page-blog 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-blog__cta-buttons {
        flex-direction: column;
        gap: 10px;
    }
    .page-blog__main-title {
        font-size: 1.8em;
    }
    .page-blog__section-title {
        font-size: 1.8em;
    }
    .page-blog__guide-subtitle {
        font-size: 1.5em;
    }
    .page-blog__article-grid {
        grid-template-columns: 1fr;
    }
    .page-blog__article-image {
        height: 180px;
    }
    .page-blog__faq-question {
        font-size: 1.1em;
        padding: 15px 20px;
    }
    .page-blog__faq-answer {
        padding: 10px 20px 15px;
    }
    .page-blog__text-block {
        font-size: 1em;
    }
}