/* style/khuyen-mai-chi-tiet-chuong-trinh.css */
.page-khuyen-mai-chi-tiet-chuong-trinh {
    font-family: Arial, sans-serif;
    line-height: 1.6;
    color: #333333; /* Default dark text on light body background */
    background-color: #FFFFFF; /* Default body background is white */
}

.page-khuyen-mai-chi-tiet-chuong-trinh__container {
    max-width: 1150px;
    margin: 0 auto;
    padding: 0 20px;
}

/* --- HERO Section --- */
.page-khuyen-mai-chi-tiet-chuong-trinh__hero-section {
    padding-top: 10px; /* Small top padding, body handles header offset */
    padding-bottom: 40px;
    background-color: #f8f8f8;
    text-align: center;
    border-bottom: 1px solid #eee;
}

.page-khuyen-mai-chi-tiet-chuong-trinh__main-title {
    font-size: clamp(2em, 4vw, 2.8em); /* Use clamp for H1 */
    font-weight: 700;
    color: #017439;
    margin-bottom: 15px;
    line-height: 1.2;
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
}

.page-khuyen-mai-chi-tiet-chuong-trinh__description {
    font-size: 1.1em;
    color: #555555;
    margin-bottom: 30px;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.page-khuyen-mai-chi-tiet-chuong-trinh__cta-buttons {
    display: flex;
    gap: 15px;
    justify-content: center;
    flex-wrap: wrap; /* Allow buttons to wrap on smaller screens */
    width: 100%; /* Ensure container takes full width for wrapping */
    max-width: 600px; /* Limit max width for desktop */
    margin: 0 auto;
}

.page-khuyen-mai-chi-tiet-chuong-trinh__btn {
    display: inline-block;
    padding: 12px 25px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: bold;
    transition: background-color 0.3s ease, transform 0.2s ease;
    cursor: pointer;
    box-sizing: border-box; /* Include padding in element's total width */
    max-width: 100%; /* Ensure buttons don't exceed container width */
    white-space: normal; /* Allow text to wrap */
    word-wrap: break-word; /* Break long words */
    text-align: center;
}

.page-khuyen-mai-chi-tiet-chuong-trinh__btn-primary {
    background-color: #017439; /* Brand primary color */
    color: #ffffff;
    border: 2px solid #017439;
}

.page-khuyen-mai-chi-tiet-chuong-trinh__btn-primary:hover {
    background-color: #005a2e;
    transform: translateY(-2px);
}

.page-khuyen-mai-chi-tiet-chuong-trinh__btn-secondary {
    background-color: #ffffff;
    color: #017439;
    border: 2px solid #017439;
}

.page-khuyen-mai-chi-tiet-chuong-trinh__btn-secondary:hover {
    background-color: #f0f0f0;
    transform: translateY(-2px);
}

/* --- Content Section --- */
.page-khuyen-mai-chi-tiet-chuong-trinh__content-section {
    padding: 40px 0;
}

.page-khuyen-mai-chi-tiet-chuong-trinh__article-wrap {
    max-width: 900px; /* Content width for articles */
    margin: 0 auto;
    padding: 0 20px;
}

.page-khuyen-mai-chi-tiet-chuong-trinh__section-title {
    font-size: 2em;
    color: #017439;
    margin-top: 40px;
    margin-bottom: 20px;
    text-align: center;
}

.page-khuyen-mai-chi-tiet-chuong-trinh__article-wrap p {
    margin-bottom: 1em;
    font-size: 1.05em;
    line-height: 1.7;
    color: #444444;
}

.page-khuyen-mai-chi-tiet-chuong-trinh__article-wrap h3 {
    font-size: 1.5em;
    color: #017439;
    margin-top: 30px;
    margin-bottom: 15px;
}

.page-khuyen-mai-chi-tiet-chuong-trinh__article-wrap a {
    color: #017439;
    text-decoration: underline;
}

.page-khuyen-mai-chi-tiet-chuong-trinh__article-wrap a:hover {
    color: #005a2e;
    text-decoration: none;
}

/* Images within content */
.page-khuyen-mai-chi-tiet-chuong-trinh img {
    max-width: 100%;
    height: auto;
    display: block;
    border-radius: 8px;
    margin: 25px auto;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
}

.page-khuyen-mai-chi-tiet-chuong-trinh__image-figure {
    margin: 25px 0;
    text-align: center;
}

.page-khuyen-mai-chi-chi-tiet-chuong-trinh__image-caption {
    font-size: 0.9em;
    color: #777777;
    margin-top: 10px;
}

/* Promo Grid */
.page-khuyen-mai-chi-tiet-chuong-trinh__promo-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 25px;
    margin-top: 30px;
    margin-bottom: 40px;
}

.page-khuyen-mai-chi-tiet-chuong-trinh__promo-card {
    background-color: #ffffff;
    border: 1px solid #e0e0e0;
    border-radius: 10px;
    padding: 25px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.page-khuyen-mai-chi-tiet-chuong-trinh__card-title {
    font-size: 1.3em;
    color: #017439;
    margin-top: 0;
    margin-bottom: 15px;
}

.page-khuyen-mai-chi-tiet-chuong-trinh__promo-card p {
    font-size: 0.95em;
    color: #555555;
    flex-grow: 1; /* Allow paragraph to take available space */
    margin-bottom: 20px;
}

.page-khuyen-mai-chi-tiet-chuong-trinh__btn-small {
    display: inline-block;
    padding: 8px 15px;
    background-color: #017439;
    color: #ffffff;
    border-radius: 5px;
    text-decoration: none;
    font-size: 0.9em;
    font-weight: bold;
    transition: background-color 0.3s ease;
    max-width: 100%; /* Ensure buttons don't exceed container width */
    box-sizing: border-box;
    white-space: normal;
    word-wrap: break-word;
    text-align: center;
}

.page-khuyen-mai-chi-tiet-chuong-trinh__btn-small:hover {
    background-color: #005a2e;
}

/* Lists */
.page-khuyen-mai-chi-tiet-chuong-trinh__list {
    list-style: disc;
    padding-left: 25px;
    margin-bottom: 20px;
    color: #444444;
}

.page-khuyen-mai-chi-tiet-chuong-trinh__list li {
    margin-bottom: 10px;
    font-size: 1.05em;
}

.page-khuyen-mai-chi-tiet-chuong-trinh__list li strong {
    color: #017439;
}

.page-khuyen-mai-chi-tiet-chuong-trinh__guide-list {
    list-style: decimal;
    padding-left: 25px;
    margin-bottom: 30px;
    color: #444444;
}

.page-khuyen-mai-chi-tiet-chuong-trinh__guide-list li {
    margin-bottom: 15px;
    font-size: 1.05em;
}

.page-khuyen-mai-chi-tiet-chuong-trinh__guide-list li strong {
    color: #017439;
    font-size: 1.1em;
}

/* Info List (reused .page-khuyen-mai-chi-tiet-chuong-trinh__list) */
.page-khuyen-mai-chi-tiet-chuong-trinh__info-list {
    background-color: #fffaf0;
    border-left: 5px solid #ffcc00;
    padding: 20px 25px;
    border-radius: 5px;
    margin-top: 30px;
    margin-bottom: 30px;
}

/* FAQ Section */
.page-khuyen-mai-chi-tiet-chuong-trinh__faq-section {
    margin-top: 30px;
    margin-bottom: 40px;
}

.page-khuyen-mai-chi-tiet-chuong-trinh__faq-item {
    background-color: #ffffff;
    border: 1px solid #e0e0e0;
    border-radius: 8px;
    margin-bottom: 15px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.page-khuyen-mai-chi-tiet-chuong-trinh__faq-item summary {
    list-style: none; /* Remove default marker */
    cursor: pointer;
    padding: 18px 25px;
    font-weight: bold;
    color: #017439;
    font-size: 1.1em;
    display: flex;
    justify-content: space-between;
    align-items: center;
    user-select: none;
}

.page-khuyen-mai-chi-tiet-chuong-trinh__faq-item summary::-webkit-details-marker {
    display: none; /* Hide for Webkit browsers */
}

.page-khuyen-mai-chi-tiet-chuong-trinh__faq-toggle {
    font-size: 1.5em;
    line-height: 1;
    margin-left: 10px;
    color: #555555;
    transition: transform 0.3s ease;
}

/* Bottom CTA */
.page-khuyen-mai-chi-tiet-chuong-trinh__bottom-cta {
    text-align: center;
    padding: 30px 0;
    border-top: 1px solid #eee;
    margin-top: 40px;
}

/* --- Mobile Responsive Styles (max-width: 768px) --- */
@media (max-width: 768px) {
    /* General content area padding for mobile */
    .page-khuyen-mai-chi-tiet-chuong-trinh__container,
    .page-khuyen-mai-chi-tiet-chuong-trinh__article-wrap {
        padding-left: 15px !important;
        padding-right: 15px !important;
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
    }

    /* 1. Top section title + CTA */
    .page-khuyen-mai-chi-tiet-chuong-trinh__hero-section {
        padding-top: 10px !important; /* Fixed small top padding */
        padding-bottom: 30px;
    }

    .page-khuyen-mai-chi-tiet-chuong-trinh__main-title {
        font-size: 1.8em !important;
        margin-bottom: 10px;
    }

    .page-khuyen-mai-chi-tiet-chuong-trinh__description {
        font-size: 1em;
        margin-bottom: 25px;
    }

    .page-khuyen-mai-chi-tiet-chuong-trinh__cta-buttons {
        flex-direction: column !important; /* Stack buttons vertically */
        gap: 10px;
        padding: 0 15px;
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
    }

    /* 4. Buttons and button containers */
    .page-khuyen-mai-chi-tiet-chuong-trinh__btn,
    .page-khuyen-mai-chi-tiet-chuong-trinh__btn-small {
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
        padding-left: 15px !important;
        padding-right: 15px !important;
        white-space: normal !important;
        word-wrap: break-word !important;
    }

    /* 2. Single column long text container */
    .page-khuyen-mai-chi-tiet-chuong-trinh__section-title {
        font-size: 1.6em;
        margin-top: 30px;
        margin-bottom: 15px;
    }

    .page-khuyen-mai-chi-tiet-chuong-trinh__article-wrap p,
    .page-khuyen-mai-chi-tiet-chuong-trinh__list li,
    .page-khuyen-mai-chi-tiet-chuong-trinh__guide-list li,
    .page-khuyen-mai-chi-tiet-chuong-trinh__promo-card p,
    .page-khuyen-mai-chi-tiet-chuong-trinh__faq-answer p {
        font-size: 0.95em;
        line-height: 1.6;
    }

    .page-khuyen-mai-chi-tiet-chuong-trinh__promo-grid {
        grid-template-columns: 1fr; /* Stack promo cards vertically */
        gap: 20px;
        margin-top: 25px;
        margin-bottom: 30px;
    }

    .page-khuyen-mai-chi-tiet-chuong-trinh__promo-card {
        padding: 20px;
    }

    .page-khuyen-mai-chi-tiet-chuong-trinh__card-title {
        font-size: 1.2em;
    }

    /* 3. Generic images and figures */
    .page-khuyen-mai-chi-tiet-chuong-trinh img {
        max-width: 100% !important;
        width: 100% !important;
        height: auto !important;
        margin: 20px auto;
    }

    .page-khuyen-mai-chi-tiet-chuong-trinh__image-figure {
        margin: 20px 0;
    }

    .page-khuyen-mai-chi-chi-tiet-chuong-trinh__image-caption {
        font-size: 0.85em;
    }

    /* 5. Registration tutorial and FAQ blocks (FAQ specific here) */
    .page-khuyen-mai-chi-tiet-chuong-trinh__faq-item {
        margin-bottom: 10px;
    }

    .page-khuyen-mai-chi-tiet-chuong-trinh__faq-item summary {
        padding: 15px 20px;
        font-size: 1em;
    }

    .page-khuyen-mai-chi-tiet-chuong-trinh__faq-answer {
        padding: 0 20px 15px;
    }

    .page-khuyen-mai-chi-tiet-chuong-trinh__bottom-cta {
        padding: 25px 0;
        margin-top: 30px;
    }
}

/* --- Color Contrast Fixes (as required by prompt) --- */
.page-khuyen-mai-chi-tiet-chuong-trinh__dark-bg {
    color: #ffffff; /* Deep green background with white text */
    background: #017439;
}

.page-khuyen-mai-chi-tiet-chuong-trinh__light-bg {
    color: #333333; /* White background with dark text */
    background: #ffffff;
}

.page-khuyen-mai-chi-tiet-chuong-trinh__medium-bg {
    color: #000000;
    background: #FFFFFF;
}

/* Ensure text contrast for main content */
.page-khuyen-mai-chi-tiet-chuong-trinh__content-area,
.page-khuyen-mai-chi-tiet-chuong-trinh__text-block {
  color: #333333;
  background: #ffffff;
}

.page-khuyen-mai-chi-tiet-chuong-trinh p,
.page-khuyen-mai-chi-tiet-chuong-trinh li {
  color: #333333;
}

.page-khuyen-mai-chi-tiet-chuong-trinh__card {
  background: #ffffff;
  color: #333333;
  border: 1px solid #e0e0e0;
}

.page-khuyen-mai-chi-tiet-chuong-trinh__dark-section {
  background: #017439;
  color: #ffffff;
}