:root {
    --primary-color: #11A84E;
    --secondary-color: #22C768;
    --button-gradient-start: #2AD16F;
    --button-gradient-end: #13994A;
    --card-bg: #11271B;
    --background: #08160F;
    --text-main: #F2FFF6;
    --text-secondary: #A7D9B8;
    --border: #2E7A4E;
    --glow: #57E38D;
    --gold: #F2C14E;
    --divider: #1E3A2A;
    --deep-green: #0A4B2C;
    --deep-green-rgb: 10, 75, 44; /* RGB for Deep Green for rgba usage */
}

.page-blog {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--text-main); /* Sử dụng màu Text Main */
    background-color: var(--background); /* Sử dụng màu Background */
}

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

/* Hero Section */
.page-blog__hero-section {
    position: relative;
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 60px 0;
    padding-top: 10px; /* Nhỏ để trang trí, không đè lên header */
    background-color: var(--background); /* Sử dụng màu Background */
    overflow: hidden;
}

.page-blog__hero-image-wrapper {
    width: 100%;
    max-height: 500px; /* Giới hạn chiều cao cho hero image */
    overflow: hidden;
    position: relative;
    z-index: 0;
}

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

.page-blog__hero-content {
    position: relative;
    z-index: 1;
    max-width: 800px;
    margin-top: 40px;
    color: var(--text-main); /* Text Main */
}

.page-blog__main-title {
    font-size: clamp(2.5rem, 5vw, 3.5rem);
    font-weight: bold;
    margin-bottom: 20px;
    color: var(--text-main); /* Text Main */
    line-height: 1.2;
}

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

/* Buttons */
.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;
    text-align: center;
    box-sizing: border-box;
    max-width: 100%;
    white-space: normal;
    word-wrap: break-word;
    min-width: 150px; /* Ensure buttons are not too small */
}

.page-blog__btn-primary {
    background: linear-gradient(180deg, var(--button-gradient-start) 0%, var(--button-gradient-end) 100%); /* Custom button color */
    color: var(--text-main); /* Text Main */
    border: none;
}

.page-blog__btn-primary:hover {
    opacity: 0.9;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(var(--glow-rgb), 0.4); /* Add glow effect */
}

.page-blog__btn-secondary {
    background: transparent;
    color: var(--text-main); /* Text Main */
    border: 2px solid var(--border); /* Border color */
}

.page-blog__btn-secondary:hover {
    background: var(--deep-green); /* Deep Green */
    color: var(--text-main); /* Text Main */
    box-shadow: 0 5px 15px rgba(var(--border-rgb), 0.4); /* Add subtle shadow */
}

/* Section titles */
.page-blog__section-title {
    font-size: clamp(2rem, 4vw, 2.8rem);
    font-weight: bold;
    text-align: center;
    margin-bottom: 20px;
    color: var(--text-main); /* Text Main */
}

.page-blog__section-description {
    font-size: 1.1rem;
    text-align: center;
    margin-bottom: 40px;
    color: var(--text-secondary); /* Text Secondary */
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

/* Blog Posts Section */
.page-blog__posts-section {
    padding: 60px 0;
    background-color: var(--background); /* Background color */
}

.page-blog__post-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    margin-bottom: 40px;
}

.page-blog__post-card {
    background-color: var(--card-bg); /* Card BG color */
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 15px 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(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
}

.page-blog__post-link {
    display: block;
    text-decoration: none;
    color: inherit;
}

.page-blog__post-image {
    width: 100%;
    height: 225px; /* Fixed height for consistency */
    object-fit: cover;
    display: block;
}

.page-blog__post-content {
    padding: 20px;
}

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

.page-blog__post-excerpt {
    font-size: 0.95rem;
    color: var(--text-secondary); /* Text Secondary */
    margin-bottom: 15px;
    line-height: 1.5;
}

.page-blog__post-date {
    font-size: 0.85rem;
    color: var(--text-secondary); /* Text Secondary */
    display: block;
}

.page-blog__view-all-button-container {
    text-align: center;
}

/* About Section */
.page-blog__about-section {
    padding: 60px 0;
    background-color: var(--deep-green); /* Deep Green background */
    color: var(--text-main); /* Text Main */
}

.page-blog__about-section .page-blog__section-title {
    color: var(--text-main); /* Text Main */
}

.page-blog__about-section .page-blog__section-description {
    color: var(--text-secondary); /* Text Secondary */
}

.page-blog__features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    margin-top: 40px;
    margin-bottom: 40px;
}

.page-blog__feature-item {
    text-align: center;
    background-color: var(--card-bg); /* Card BG */
    padding: 30px;
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
    border: 1px solid var(--border); /* Border color */
}

.page-blog__feature-icon {
    width: 100px;
    height: auto;
    margin-bottom: 20px;
    display: block;
    margin-left: auto;
    margin-right: auto;
    min-width: 200px; /* Enforce min size */
    min-height: 150px; /* Enforce min size */
    object-fit: contain; /* Ensure icon fits without cropping */
}

.page-blog__feature-title {
    font-size: 1.5rem;
    font-weight: bold;
    margin-bottom: 15px;
    color: var(--text-main); /* Text Main */
}

.page-blog__feature-description {
    font-size: 1rem;
    color: var(--text-secondary); /* Text Secondary */
}

.page-blog__cta-buttons--center {
    justify-content: center;
}

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

.page-blog__faq-list {
    max-width: 900px;
    margin: 40px auto 0 auto;
}

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

.page-blog__faq-item summary {
    list-style: none; /* Hide default marker */
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px;
    cursor: pointer;
    font-weight: bold;
    font-size: 1.1rem;
    color: var(--text-main); /* Text Main */
    background-color: var(--card-bg); /* Card BG */
    transition: background-color 0.3s ease;
}

.page-blog__faq-item summary::-webkit-details-marker {
    display: none; /* Hide default marker for webkit */
}

.page-blog__faq-item summary:hover {
    background-color: var(--deep-green); /* Deep Green */
}

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

.page-blog__faq-toggle {
    font-size: 1.5rem;
    line-height: 1;
    margin-left: 15px;
    color: var(--glow); /* Glow color */
}

.page-blog__faq-item[open] .page-blog__faq-toggle {
    content: "−"; /* Change to minus when open */
}

.page-blog__faq-answer {
    padding: 0 20px 20px 20px;
    font-size: 1rem;
    color: var(--text-secondary); /* Text Secondary */
}

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

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

.page-blog__cta-bottom-content {
    max-width: 900px;
}

/* Responsive adjustments */
@media (max-width: 1024px) {
    .page-blog__main-title {
        font-size: clamp(2rem, 4.5vw, 3rem);
    }
    .page-blog__section-title {
        font-size: clamp(1.8rem, 3.5vw, 2.5rem);
    }
}

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

    .page-blog__container {
        padding: 0 15px;
    }

    .page-blog__hero-section {
        padding: 40px 15px;
        padding-top: 10px !important; /* body đã xử lý padding-top */
    }

    .page-blog__hero-image {
        max-height: 300px;
    }

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

    .page-blog__cta-buttons {
        flex-direction: column;
        gap: 10px;
        width: 100%;
        max-width: 100%;
        box-sizing: border-box;
        padding: 0 15px;
    }

    .page-blog__btn-primary,
    .page-blog__btn-secondary {
        width: 100% !important;
        max-width: 100% !important;
        padding: 12px 15px;
        font-size: 1rem;
        min-width: unset; /* Allow to shrink on mobile */
    }

    .page-blog__posts-section,
    .page-blog__about-section,
    .page-blog__faq-section,
    .page-blog__cta-bottom-section {
        padding: 40px 0;
    }

    .page-blog__post-grid,
    .page-blog__features-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

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

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

    .page-blog__feature-icon {
        width: 150px;
        min-width: 200px !important; /* Enforce min size */
        min-height: 150px !important; /* Enforce min size */
    }

    .page-blog__faq-item summary {
        font-size: 1rem;
        padding: 15px;
    }

    .page-blog__faq-answer {
        padding: 0 15px 15px 15px;
    }
    
    /* Mobile image responsiveness - MUST HAVE */
    .page-blog img {
        max-width: 100% !important;
        width: 100% !important;
        height: auto !important;
        display: block !important;
    }
    
    /* Mobile video responsiveness - MUST HAVE */
    .page-blog video,
    .page-blog__video {
      max-width: 100% !important;
      width: 100% !important;
      height: auto !important;
      display: block !important;
    }
    
    .page-blog__video-section,
    .page-blog__video-container,
    .page-blog__video-wrapper {
      max-width: 100% !important;
      width: 100% !important;
      box-sizing: border-box !important;
      padding-left: 15px;
      padding-right: 15px;
      overflow: hidden !important;
    }
    
    .page-blog__video-section {
        padding-top: 10px !important; /* body đã承担 --header-offset，此处禁止 var(--header-offset) */
    }
    
    /* All containers with images/videos/buttons - MUST HAVE */
    .page-blog__section,
    .page-blog__card,
    .page-blog__container,
    .page-blog__hero-section,
    .page-blog__posts-section,
    .page-blog__about-section,
    .page-blog__faq-section,
    .page-blog__cta-bottom-section,
    .page-blog__post-card,
    .page-blog__feature-item,
    .page-blog__faq-item,
    .page-blog__cta-buttons,
    .page-blog__button-group,
    .page-blog__btn-container {
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
    }

    /* Add padding to sections if they don't have it */
    .page-blog__posts-section > .page-blog__container,
    .page-blog__about-section > .page-blog__container,
    .page-blog__faq-section > .page-blog__container,
    .page-blog__cta-bottom-section > .page-blog__container {
        padding-left: 15px !important;
        padding-right: 15px !important;
    }
}