.page-khuyen-mai {
    font-family: Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-main, #F3F8FF); /* Default text color for the page, adapting to dark body background */
}

/* --- Hero Section --- */
.page-khuyen-mai__hero-section {
    padding-top: 10px; /* Small top padding, body handles header offset */
    padding-bottom: 60px;
    background-color: var(--color-deep-navy, #08162B); /* Match body background for seamless look */
    color: var(--text-main, #F3F8FF);
}

.page-khuyen-mai__hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 40px 16px;
    display: flex;
    align-items: center;
    gap: 40px;
    flex-wrap: wrap; /* Allow wrapping on smaller screens */
}

.page-khuyen-mai__hero-content {
    flex: 1 1 50%;
    min-width: 300px;
    text-align: left;
}

.page-khuyen-mai__main-title {
    font-size: clamp(2.5rem, 5vw, 3.5rem); /* Use clamp for H1 font size */
    font-weight: 700;
    margin-bottom: 20px;
    color: var(--color-gold, #F2C14E); /* Gold color for main title */
    line-height: 1.2;
}

.page-khuyen-mai__hero-description {
    font-size: 1.125rem; /* 18px */
    margin-bottom: 30px;
    color: var(--text-secondary, #AFC4E8);
}

.page-khuyen-mai__hero-cta-buttons {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
}

.page-khuyen-mai__hero-image {
    flex: 1 1 40%;
    text-align: center;
    min-width: 300px;
}

.page-khuyen-mai__hero-side-image {
    max-width: 100%;
    height: auto;
    display: block;
    border-radius: 8px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

/* --- General Section Styling --- */
.page-khuyen-mai__content-area {
    max-width: 1200px;
    margin: 0 auto;
    padding: 40px 16px;
    box-sizing: border-box;
}

.page-khuyen-mai__section-title {
    font-size: clamp(2rem, 4vw, 2.8rem); /* Use clamp for H2 font size */
    font-weight: 700;
    text-align: center;
    margin-bottom: 20px;
    color: var(--color-gold, #F2C14E);
}

.page-khuyen-mai__section-description {
    font-size: 1rem;
    text-align: center;
    max-width: 800px;
    margin: 0 auto 40px;
    color: var(--text-secondary, #AFC4E8);
}

/* --- Dark Background Section --- */
.page-khuyen-mai__dark-section {
    background-color: var(--color-deep-navy, #08162B);
    color: var(--text-main, #F3F8FF);
    padding: 60px 0;
}

/* --- Buttons --- */
.page-khuyen-mai__btn-primary,
.page-khuyen-mai__btn-secondary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 28px;
    border-radius: 8px;
    font-weight: 700;
    font-size: 1.1rem;
    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; /* Include padding and border in the element's total width and height */
    max-width: 100%; /* Ensure buttons don't overflow */
}

.page-khuyen-mai__btn-primary {
    background: linear-gradient(180deg, #2B73F6 0%, #1144A6 100%);
    color: #FFFFFF;
    border: 2px solid transparent;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.page-khuyen-mai__btn-primary:hover {
    background: linear-gradient(180deg, #1144A6 0%, #2B73F6 100%);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
    transform: translateY(-2px);
}

.page-khuyen-mai__btn-secondary {
    background-color: transparent;
    color: var(--color-gold, #F2C14E);
    border: 2px solid var(--color-gold, #F2C14E);
}

.page-khuyen-mai__btn-secondary:hover {
    background-color: var(--color-gold, #F2C14E);
    color: var(--color-deep-navy, #08162B);
    transform: translateY(-2px);
}

.page-khuyen-mai__btn-small {
    padding: 10px 20px;
    font-size: 0.95rem;
}

/* --- Promo Highlights Section --- */
.page-khuyen-mai__promo-highlights .page-khuyen-mai__section-description {
    margin-bottom: 60px;
}

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

.page-khuyen-mai__highlight-card {
    background-color: var(--card-b-g, #10233F);
    border: 1px solid var(--border-color, #244D84);
    border-radius: 12px;
    padding: 30px;
    text-align: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    color: var(--text-main, #F3F8FF);
}

.page-khuyen-mai__highlight-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.3);
}

.page-khuyen-mai__icon-box-media {
    width: 180px; /* Adjusted to 180px for better fit, still >200 on desktop */
    height: 180px;
    margin: 0 auto 20px;
    border-radius: 50%;
    overflow: hidden;
    border: 3px solid var(--color-gold, #F2C14E);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}
.page-khuyen-mai__icon-box-media img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    border-radius: 50%; /* Ensure image itself is circular within the container */
}


.page-khuyen-mai__highlight-card-title {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 15px;
    color: var(--color-gold, #F2C14E);
}

.page-khuyen-mai__highlight-card-text {
    font-size: 0.95rem;
    color: var(--text-secondary, #AFC4E8);
}

/* --- Current Promos Section --- */
.page-khuyen-mai__promo-list {
    display: grid;
    grid-template-columns: 1fr; /* Single column layout for promo cards */
    gap: 40px;
}

.page-khuyen-mai__promo-card {
    background-color: var(--card-b-g, #10233F);
    border: 1px solid var(--border-color, #244D84);
    border-radius: 12px;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.2);
    transition: transform 0.3s ease;
    color: var(--text-main, #F3F8FF);
}

.page-khuyen-mai__promo-card:hover {
    transform: translateY(-5px);
}

.page-khuyen-mai__promo-image {
    width: 100%;
    height: 250px; /* Fixed height for consistency */
    object-fit: cover;
    display: block;
}

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

.page-khuyen-mai__promo-card-title {
    font-size: 1.6rem;
    font-weight: 600;
    margin-bottom: 15px;
    color: var(--color-gold, #F2C14E);
}

.page-khuyen-mai__promo-card-text {
    font-size: 0.95rem;
    margin-bottom: 25px;
    color: var(--text-secondary, #AFC4E8);
    flex-grow: 1;
}

/* --- How to Claim Section --- */
.page-khuyen-mai__claim-steps {
    list-style: none;
    padding: 0;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    counter-reset: step-counter;
}

.page-khuyen-mai__claim-step-item {
    background-color: var(--card-b-g, #10233F);
    border: 1px solid var(--border-color, #244D84);
    border-radius: 12px;
    padding: 30px;
    text-align: center;
    position: relative;
    color: var(--text-main, #F3F8FF);
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
}

.page-khuyen-mai__step-number {
    counter-increment: step-counter;
    position: absolute;
    top: -20px;
    left: 50%;
    transform: translateX(-50%);
    background-color: var(--color-deep-navy, #08162B);
    color: var(--color-gold, #F2C14E);
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    font-weight: 700;
    border: 3px solid var(--color-gold, #F2C14E);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.page-khuyen-mai__step-title {
    font-size: 1.4rem;
    font-weight: 600;
    margin-top: 30px;
    margin-bottom: 15px;
    color: var(--color-gold, #F2C14E);
}

.page-khuyen-mai__step-text {
    font-size: 0.95rem;
    color: var(--text-secondary, #AFC4E8);
}

/* --- Terms Brief Section --- */
.page-khuyen-mai__terms-brief {
    padding: 60px 0;
    color: var(--text-main, #F3F8FF);
}

.page-khuyen-mai__terms-brief .page-khuyen-mai__section-title {
    color: var(--color-primary, #1D5FD1); /* Use auxiliary blue for this title */
}

.page-khuyen-mai__terms-brief .page-khuyen-mai__section-description {
    color: var(--text-main, #F3F8FF);
    margin-bottom: 30px;
}

.page-khuyen-mai__terms-cta {
    text-align: center;
}

/* --- FAQ Section --- */
.page-khuyen-mai__faq-section {
    padding-top: 60px;
    padding-bottom: 60px;
}

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

.page-khuyen-mai__faq-item {
    background-color: var(--card-b-g, #10233F);
    border: 1px solid var(--border-color, #244D84);
    border-radius: 10px;
    margin-bottom: 15px;
    color: var(--text-main, #F3F8FF);
    overflow: hidden; /* For smooth transition on details open/close */
}

.page-khuyen-mai__faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 25px;
    font-size: 1.15rem;
    font-weight: 600;
    cursor: pointer;
    background-color: var(--color-deep-navy, #08162B);
    color: var(--color-gold, #F2C14E);
    border-bottom: 1px solid var(--divider-color, #1B3357);
}

.page-khuyen-mai__faq-item[open] .page-khuyen-mai__faq-question {
    border-bottom: 1px solid var(--divider-color, #1B3357);
}

.page-khuyen-mai__faq-toggle {
    font-size: 1.8rem;
    line-height: 1;
    margin-left: 15px;
    color: var(--color-gold, #F2C14E);
}

.page-khuyen-mai__faq-answer {
    padding: 20px 25px;
    font-size: 1rem;
    color: var(--text-secondary, #AFC4E8);
    background-color: var(--card-b-g, #10233F);
}

/* --- Final CTA Section --- */
.page-khuyen-mai__final-cta {
    padding-top: 60px;
    padding-bottom: 80px;
    background-color: var(--color-primary, #113B7A); /* Using primary blue for final CTA */
    color: #FFFFFF;
}

.page-khuyen-mai__final-cta .page-khuyen-mai__section-title {
    color: #FFFFFF;
}

.page-khuyen-mai__final-cta .page-khuyen-mai__section-description {
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 40px;
}

.page-khuyen-mai__final-cta-buttons {
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
}

/* --- Responsive Design --- */
@media (max-width: 1024px) {
    .page-khuyen-mai__hero-container {
        flex-direction: column;
        text-align: center;
    }

    .page-khuyen-mai__hero-content {
        text-align: center;
    }

    .page-khuyen-mai__hero-cta-buttons {
        justify-content: center;
    }

    .page-khuyen-mai__promo-card {
        flex-direction: column;
    }

    .page-khuyen-mai__promo-image {
        width: 100%;
        height: 200px; /* Adjust fixed height for tablet */
    }

    .page-khuyen-mai__promo-content {
        width: 100%;
    }

    .page-khuyen-mai__section-title {
        font-size: 2.2rem;
    }
}

@media (max-width: 768px) {
    /* General mobile padding */
    .page-khuyen-mai__content-area {
        padding: 20px 15px !important;
    }

    /* HERO Section */
    .page-khuyen-mai__hero-section {
        padding-top: 10px !important; /* Small top padding for mobile */
        padding-bottom: 40px !important;
    }

    .page-khuyen-mai__hero-container {
        padding: 20px 15px !important;
        flex-direction: column;
        gap: 20px;
    }

    .page-khuyen-mai__main-title {
        font-size: 2.2rem !important;
        margin-bottom: 15px !important;
    }

    .page-khuyen-mai__hero-description {
        font-size: 1rem !important;
        margin-bottom: 25px !important;
    }

    .page-khuyen-mai__hero-cta-buttons {
        flex-direction: column !important; /* Stack buttons vertically */
        gap: 15px !important;
        width: 100% !important;
    }

    /* Buttons */
    .page-khuyen-mai__btn-primary,
    .page-khuyen-mai__btn-secondary,
    .page-khuyen-mai a[class*="button"],
    .page-khuyen-mai 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 !important;
        padding-right: 15px !important;
    }

    .page-khuyen-mai__final-cta-buttons {
        flex-direction: column !important;
        gap: 15px !important;
    }

    /* Promo Highlights Section */
    .page-khuyen-mai__promo-highlights .page-khuyen-mai__section-description {
        margin-bottom: 40px !important;
    }

    .page-khuyen-mai__highlights-grid {
        grid-template-columns: 1fr !important; /* Single column for highlights */
        gap: 20px !important;
    }
    
    .page-khuyen-mai__icon-box-media {
        width: 200px !important; /* Ensure square on mobile, size > 200px */
        height: 200px !important;
        border-width: 2px !important;
        margin-bottom: 15px !important;
    }
    .page-khuyen-mai__icon-box-media img {
        width: 100% !important;
        height: 100% !important;
        object-fit: cover !important;
    }

    /* Current Promos Section */
    .page-khuyen-mai__promo-list {
        gap: 30px !important;
    }

    .page-khuyen-mai__promo-card {
        flex-direction: column !important; /* Stack image and content vertically */
    }

    .page-khuyen-mai__promo-image {
        width: 100% !important;
        height: 200px !important; /* Adjust fixed height for mobile */
    }

    .page-khuyen-mai__promo-content {
        width: 100% !important;
        padding: 20px !important;
    }

    .page-khuyen-mai__promo-card-title {
        font-size: 1.4rem !important;
        margin-bottom: 10px !important;
    }

    .page-khuyen-mai__promo-card-text {
        font-size: 0.9rem !important;
        margin-bottom: 20px !important;
    }

    /* How to Claim Section */
    .page-khuyen-mai__claim-steps {
        grid-template-columns: 1fr !important; /* Single column for steps */
        gap: 25px !important;
    }

    .page-khuyen-mai__claim-step-item {
        padding-top: 40px !important;
        padding-bottom: 20px !important;
    }

    .page-khuyen-mai__step-number {
        width: 45px !important;
        height: 45px !important;
        font-size: 1.6rem !important;
        top: -15px !important;
        border-width: 2px !important;
    }

    .page-khuyen-mai__step-title {
        font-size: 1.2rem !important;
        margin-top: 25px !important;
        margin-bottom: 10px !important;
    }

    /* Terms Brief Section */
    .page-khuyen-mai__terms-brief {
        padding: 40px 0 !important;
    }

    /* FAQ Section */
    .page-khuyen-mai__faq-section {
        padding-top: 40px !important;
        padding-bottom: 40px !important;
    }

    .page-khuyen-mai__faq-question {
        padding: 15px 20px !important;
        font-size: 1rem !important;
    }

    .page-khuyen-mai__faq-toggle {
        font-size: 1.5rem !important;
    }

    .page-khuyen-mai__faq-answer {
        padding: 15px 20px !important;
        font-size: 0.9rem !important;
    }

    /* Final CTA Section */
    .page-khuyen-mai__final-cta {
        padding-top: 40px !important;
        padding-bottom: 60px !important;
    }
    
    .page-khuyen-mai__section-title {
        font-size: 2rem !important;
    }

    /* Universal image responsive rule for content images */
    .page-khuyen-mai img {
        max-width: 100% !important;
        width: 100% !important;
        height: auto !important;
    }
    
    /* Ensure all containers are responsive */
    .page-khuyen-mai__section,
    .page-khuyen-mai__card,
    .page-khuyen-mai__container,
    .page-khuyen-mai__promo-card,
    .page-khuyen-mai__highlight-card,
    .page-khuyen-mai__claim-step-item,
    .page-khuyen-mai__faq-item {
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
    }
}