/* style/blog.css */
/* body đã padding-top: var(--header-offset) từ shared.css; trang này không cần thêm */
.page-blog {
    font-family: 'Arial', sans-serif;
    line-height: 1.6;
    color: var(--text-main); /* Sử dụng biến màu từ custom config */
    background-color: var(--background-color); /* Sử dụng biến màu từ custom config */
}

.page-blog__container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.page-blog__hero-section {
    position: relative;
    width: 100%;
    display: flex;
    flex-direction: column; /* Thẻ ảnh trên, nội dung dưới */
    align-items: center;
    padding-top: 10px; /* Nhỏ thôi, body đã có padding-top */
    padding-bottom: 60px;
    text-align: center;
    overflow: hidden; /* Ensure no overflow from hero image */
}

.page-blog__hero-image-wrapper {
    width: 100%;
    max-height: 500px; /* Limit height for hero image */
    overflow: hidden;
    margin-bottom: 20px; /* Space between image and content */
}

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

.page-blog__hero-content {
    max-width: 900px;
    margin-top: 20px;
}

.page-blog__main-title {
    font-size: clamp(2.2rem, 4vw, 3.5rem); /* Responsive font size */
    font-weight: 700;
    color: var(--text-main);
    margin-bottom: 20px;
    line-height: 1.2;
    letter-spacing: -0.02em;
}

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

.page-blog__section-title {
    font-size: clamp(1.8rem, 3vw, 2.8rem);
    font-weight: 700;
    color: var(--text-main);
    text-align: center;
    margin-bottom: 50px;
    position: relative;
    padding-bottom: 15px;
}

.page-blog__section-title::after {
    content: '';
    position: absolute;
    left: 50%;
    bottom: 0;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: var(--glow); /* Using Glow color */
    border-radius: 2px;
}

.page-blog__btn-primary,
.page-blog__btn-secondary {
    display: inline-block;
    padding: 12px 28px;
    border-radius: 8px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s ease;
    cursor: pointer;
    white-space: normal; /* Allow text wrapping */
    word-wrap: break-word; /* Allow text wrapping */
    box-sizing: border-box;
    max-width: 100%;
    text-align: center;
}

.page-blog__btn-primary {
    background: var(--button-gradient); /* Button color */
    color: var(--text-main); /* Text Main color */
    border: none;
    margin: 10px;
}

.page-blog__btn-primary:hover {
    opacity: 0.9;
    transform: translateY(-2px);
}

.page-blog__btn-secondary {
    background: transparent;
    color: var(--glow); /* Glow for secondary text */
    border: 2px solid var(--glow); /* Border with Glow color */
    margin: 10px;
}

.page-blog__btn-secondary:hover {
    background: var(--glow);
    color: var(--background-color); /* Text should contrast, use a dark color */
}

/* Latest Posts Section */
.page-blog__latest-posts {
    padding: 80px 0;
    background-color: var(--background-color); /* Background color for dark section */
}

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

.page-blog__post-card {
    background-color: var(--card-bg); /* Card background color */
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border: 1px solid var(--border); /* Border color */
}

.page-blog__post-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 25px rgba(0, 0, 0, 0.3);
}

.page-blog__post-link {
    text-decoration: none;
    display: block;
    height: 100%; /* Ensure link covers entire card */
}

.page-blog__post-image {
    width: 100%;
    height: 220px; /* Fixed height for consistency */
    object-fit: cover;
    display: block;
}

.page-blog__post-content {
    padding: 25px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    height: calc(100% - 220px); /* Adjust height based on image height */
}

.page-blog__post-title {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--text-main); /* Text Main color */
    margin-bottom: 10px;
    line-height: 1.3;
}

.page-blog__post-meta {
    font-size: 0.9rem;
    color: var(--text-secondary); /* Text Secondary color */
    margin-bottom: 15px;
}

.page-blog__post-excerpt {
    font-size: 1rem;
    color: var(--text-secondary); /* Text Secondary color */
    margin-bottom: 20px;
    flex-grow: 1;
}

.page-blog__read-more {
    color: var(--glow); /* Glow color */
    font-weight: 600;
    display: inline-block;
    position: relative;
    padding-right: 15px;
}

.page-blog__read-more::after {
    content: '→';
    position: absolute;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
    transition: right 0.3s ease;
}

.page-blog__post-link:hover .page-blog__read-more::after {
    right: -5px;
}

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

/* Categories Section */
.page-blog__categories {
    padding: 80px 0;
    background-color: var(--deep-green); /* Deep Green for light background */
}

.page-blog__category-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 20px;
    text-align: center;
}

.page-blog__category-item {
    background-color: var(--card-bg); /* Card BG color */
    color: var(--text-main); /* Text Main color */
    padding: 18px 25px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    font-size: 1.1rem;
    transition: background-color 0.3s ease, transform 0.3s ease;
    border: 1px solid var(--border); /* Border color */
    display: flex;
    align-items: center;
    justify-content: center;
}

.page-blog__category-item:hover {
    background-color: var(--glow); /* Glow color */
    color: var(--background-color); /* Dark text for contrast */
    transform: translateY(-3px);
}

/* FAQ Section */
.page-blog__faq-section {
    padding: 80px 0;
    background-color: var(--background-color); /* Background color */
}

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

.page-blog__faq-item {
    background-color: var(--card-bg); /* Card BG color */
    border: 1px solid var(--border); /* Border color */
    border-radius: 10px;
    margin-bottom: 15px;
    overflow: hidden;
    transition: all 0.3s ease;
}

.page-blog__faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 25px;
    font-size: 1.15rem;
    font-weight: 600;
    color: var(--text-main); /* Text Main color */
    cursor: pointer;
    background-color: var(--card-bg); /* Card BG color */
    position: relative;
    user-select: none;
    list-style: none; /* For details/summary */
}

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

.page-blog__faq-qtext {
    flex-grow: 1;
}

.page-blog__faq-toggle {
    font-size: 1.8rem;
    line-height: 1;
    margin-left: 20px;
    color: var(--glow); /* Glow color */
}

.page-blog__faq-answer {
    padding: 0 25px 20px;
    font-size: 1rem;
    color: var(--text-secondary); /* Text Secondary color */
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease-out, padding 0.3s ease-out;
}

.page-blog__faq-item[open] .page-blog__faq-answer {
    max-height: 500px; /* Adjust as needed */
    padding-top: 10px;
}

/* CTA Section */
.page-blog__cta-section {
    padding: 80px 0;
    text-align: center;
    background-color: var(--deep-green); /* Deep Green for light background */
}

.page-blog__cta-content {
    background-color: var(--card-bg); /* Card BG color */
    padding: 50px;
    border-radius: 15px;
    border: 1px solid var(--border); /* Border color */
}

.page-blog__cta-content .page-blog__section-title,
.page-blog__cta-content .page-blog__description {
    color: var(--text-main); /* Ensure light text on this dark background */
}

.page-blog__cta-content .page-blog__section-title {
    margin-bottom: 25px;
}

.page-blog__cta-content .page-blog__description {
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
    margin-bottom: 40px;
}

.page-blog__cta-buttons {
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap; /* Allow buttons to wrap on smaller screens */
}

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

/* Ensure contrast for text on deep green background */
.page-blog__light-bg {
    background-color: var(--deep-green); /* Use Deep Green for light background */
    color: var(--text-main); /* Ensure light text on this dark background */
}

/* Responsive Styles */
@media (max-width: 1024px) {
    .page-blog__main-title {
        font-size: clamp(2rem, 5vw, 3rem);
    }
    .page-blog__description {
        font-size: 1rem;
    }
    .page-blog__post-grid {
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    }
}

@media (max-width: 768px) {
    .page-blog__container {
        padding: 0 15px;
    }

    .page-blog__hero-section {
        padding-bottom: 40px;
    }

    .page-blog__main-title {
        font-size: clamp(1.8rem, 6vw, 2.5rem);
        margin-bottom: 15px;
    }

    .page-blog__description {
        font-size: 0.95rem;
        margin-bottom: 20px;
    }

    .page-blog__section-title {
        font-size: clamp(1.6rem, 5vw, 2.2rem);
        margin-bottom: 40px;
    }

    .page-blog__latest-posts,
    .page-blog__categories,
    .page-blog__faq-section,
    .page-blog__cta-section {
        padding: 60px 0;
    }

    .page-blog__post-image {
        height: 180px;
    }

    .page-blog__post-title {
        font-size: 1.2rem;
    }

    .page-blog__faq-question {
        font-size: 1rem;
        padding: 15px 20px;
    }

    .page-blog__faq-toggle {
        font-size: 1.5rem;
    }

    .page-blog__cta-content {
        padding: 30px;
    }

    /* Mobile image responsive adaptation */
    .page-blog img {
        max-width: 100% !important;
        width: 100% !important;
        height: auto !important;
        display: block !important;
    }
    
    .page-blog__section,
    .page-blog__card,
    .page-blog__container,
    .page-blog__hero-section,
    .page-blog__latest-posts,
    .page-blog__categories,
    .page-blog__faq-section,
    .page-blog__cta-section {
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
        padding-left: 15px;
        padding-right: 15px;
    }

    .page-blog__hero-section {
        padding-top: 10px !important; /* body đã承担 --header-offset，此处禁止 var(--header-offset) */
    }

    /* Mobile button responsive adaptation */
    .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;
        margin-left: 0 !important; /* Remove horizontal margin for full width */
        margin-right: 0 !important; /* Remove horizontal margin for full width */
    }
    
    .page-blog__cta-buttons {
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
        padding-left: 0;
        padding-right: 0;
        flex-direction: column !important; /* Stack buttons vertically */
        gap: 15px !important;
    }
}