/* General Styles */
.page-khuyen-mai {
    font-family: Arial, sans-serif;
    line-height: 1.6;
    color: #333333;
    background-color: #FFFFFF;
}

.page-khuyen-mai__content-area {
    max-width: 1170px;
    margin: 0 auto;
    padding: 40px 16px;
    box-sizing: border-box;
}

.page-khuyen-mai__content-area--center {
    text-align: center;
}

.page-khuyen-mai__section-title {
    font-size: 2.5em;
    font-weight: bold;
    margin-bottom: 20px;
    text-align: center;
    color: #26A9E0;
}

.page-khuyen-mai__section-title--white {
    color: #ffffff;
}

.page-khuyen-mai__section-description {
    font-size: 1.1em;
    text-align: center;
    margin-bottom: 40px;
    color: #555555;
}

.page-khuyen-mai__section-description--white {
    color: #f0f0f0;
}

.page-khuyen-mai__btn-primary,
.page-khuyen-mai__btn-secondary,
.page-khuyen-mai__btn-link {
    display: inline-block;
    padding: 12px 25px;
    border-radius: 5px;
    text-decoration: none;
    font-weight: bold;
    transition: background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease;
    text-align: center;
    box-sizing: border-box;
    white-space: normal;
    word-wrap: break-word;
}

.page-khuyen-mai__btn-primary {
    background-color: #EA7C07;
    color: #ffffff;
    border: 2px solid #EA7C07;
}

.page-khuyen-mai__btn-primary:hover {
    background-color: #d16b00;
    border-color: #d16b00;
}

.page-khuyen-mai__btn-primary--large {
    padding: 15px 30px;
    font-size: 1.1em;
}

.page-khuyen-mai__btn-secondary {
    background-color: #FFFFFF;
    color: #26A9E0;
    border: 2px solid #26A9E0;
    margin-left: 15px;
}

.page-khuyen-mai__btn-secondary:hover {
    background-color: #26A9E0;
    color: #FFFFFF;
}

.page-khuyen-mai__btn-link {
    background-color: transparent;
    color: #26A9E0;
    border: 1px solid #26A9E0;
    padding: 8px 15px;
    font-size: 0.9em;
}

.page-khuyen-mai__btn-link:hover {
    background-color: #26A9E0;
    color: #FFFFFF;
}

.page-khuyen-mai__light-bg {
    background-color: #FFFFFF;
    color: #333333;
}

.page-khuyen-mai__dark-bg {
    background-color: #26A9E0;
    color: #ffffff;
}

/* Hero Section */
.page-khuyen-mai__hero-section {
    padding-top: 10px; /* Assuming body handles header offset */
    padding-bottom: 40px;
    background-color: #f0f8ff; /* Light blue background for visual appeal */
}

.page-khuyen-mai__hero-container {
    max-width: 1170px;
    margin: 0 auto;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    padding: 40px 16px;
    gap: 24px;
}

.page-khuyen-mai__hero-content {
    flex: 1 1 45%;
    min-width: 300px;
    color: #1e1765;
    text-align: left;
}

.page-khuyen-mai__main-title {
    font-size: clamp(2em, 4vw, 2.5em); /* Responsive font size */
    font-weight: bold;
    margin-bottom: 15px;
    color: #26A9E0;
    line-height: 1.2;
}

.page-khuyen-mai__hero-description {
    font-size: 1.1em;
    margin-bottom: 30px;
    color: #555555;
}

.page-khuyen-mai__cta-buttons {
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
}

.page-khuyen-mai__hero-image {
    flex: 1 1 45%;
    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 4px 15px rgba(0, 0, 0, 0.1);
}

/* Intro Section */
.page-khuyen-mai__intro-section {
    padding: 60px 0;
}

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

.page-khuyen-mai__feature-item {
    background-color: #ffffff;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s ease;
}

.page-khuyen-mai__feature-item:hover {
    transform: translateY(-5px);
}

.page-khuyen-mai__icon-box-media {
    width: 240px;
    height: 240px;
    aspect-ratio: 1 / 1;
    margin: 0 auto 16px;
    border-radius: 50%;
    overflow: hidden;
    border: 3px solid #26A9E0;
}

.page-khuyen-mai__icon-box-media img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 50%; /* Ensure image inside is also circular */
    display: block;
}

.page-khuyen-mai__feature-title {
    font-size: 1.5em;
    font-weight: bold;
    margin-bottom: 10px;
    color: #26A9E0;
}

.page-khuyen-mai__feature-text {
    font-size: 1em;
    color: #555555;
}

/* Promo Section */
.page-khuyen-mai__promo-section {
    padding: 60px 0;
}

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

.page-khuyen-mai__promo-card {
    background-color: #ffffff;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    display: flex;
    flex-direction: column;
    transition: transform 0.3s ease;
}

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

.page-khuyen-mai__promo-image {
    width: 100%;
    height: 200px; /* Fixed height for consistency */
    object-fit: cover;
    display: block;
}

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

.page-khuyen-mai__promo-title {
    font-size: 1.3em;
    font-weight: bold;
    margin-bottom: 10px;
    color: #26A9E0;
}

.page-khuyen-mai__promo-title a {
    color: inherit;
    text-decoration: none;
}

.page-khuyen-mai__promo-title a:hover {
    text-decoration: underline;
}

.page-khuyen-mai__promo-text {
    font-size: 0.95em;
    color: #555555;
    margin-bottom: 20px;
    flex-grow: 1;
}

/* Guide Section */
.page-khuyen-mai__guide-section {
    padding: 60px 0;
}

.page-khuyen-mai__guide-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.page-khuyen-mai__guide-step {
    text-align: center;
    padding: 25px;
    background-color: #f8f8f8;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.page-khuyen-mai__step-icon {
    font-size: 2em;
    font-weight: bold;
    color: #26A9E0;
    background-color: #e0f2f7;
    border-radius: 50%;
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 15px;
}

.page-khuyen-mai__step-title {
    font-size: 1.3em;
    font-weight: bold;
    margin-bottom: 10px;
    color: #333333;
}

.page-khuyen-mai__step-text {
    font-size: 0.95em;
    color: #555555;
}

.page-khuyen-mai__step-text a {
    color: #26A9E0;
    text-decoration: none;
}

.page-khuyen-mai__step-text a:hover {
    text-decoration: underline;
}

.page-khuyen-mai__cta-wrapper {
    text-align: center;
    margin-top: 50px;
}

/* FAQ Section */
.page-khuyen-mai__faq-section {
    padding: 60px 0;
}

.page-khuyen-mai__faq-list {
    margin-top: 40px;
}

.page-khuyen-mai__faq-item {
    background-color: #ffffff;
    border-radius: 8px;
    margin-bottom: 15px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
    overflow: hidden;
}

.page-khuyen-mai__faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px;
    font-size: 1.1em;
    font-weight: bold;
    color: #333333;
    cursor: pointer;
    list-style: none;
    position: relative;
}

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

.page-khuyen-mai__faq-qtext {
    flex-grow: 1;
    text-align: left;
}

.page-khuyen-mai__faq-toggle {
    font-size: 1.5em;
    line-height: 1;
    margin-left: 15px;
    color: #26A9E0;
    transition: transform 0.3s ease;
}

.page-khuyen-mai__faq-item[open] .page-khuyen-mai__faq-toggle {
    transform: rotate(45deg);
}

.page-khuyen-mai__faq-answer {
    padding: 0 20px 20px 20px;
    font-size: 1em;
    color: #555555;
    line-height: 1.6;
}

/* Final CTA Section */
.page-khuyen-mai__final-cta-section {
    padding: 60px 0;
}

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

    .page-khuyen-mai__hero-content {
        flex: 1 1 100%;
        text-align: center;
    }

    .page-khuyen-mai__hero-image {
        flex: 1 1 100%;
        order: -1; /* Image above content on smaller screens */
    }

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

@media (max-width: 768px) {
    /* 1. HERO section */
    .page-khuyen-mai__hero-section {
        padding-top: 10px !important;
        padding-bottom: 30px !important;
    }

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

    .page-khuyen-mai__main-title {
        font-size: clamp(1.8em, 7vw, 2.2em);
        margin-bottom: 10px;
    }

    .page-khuyen-mai__hero-description {
        font-size: 1em;
        margin-bottom: 20px;
    }

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

    .page-khuyen-mai__btn-primary,
    .page-khuyen-mai__btn-secondary {
        margin-left: 0 !important; /* Override desktop margin */
        width: 100% !important;
        max-width: 100% !important;
        padding-left: 15px !important;
        padding-right: 15px !important;
    }

    /* 2. Module 1 (intro section) three-column layout, __icon-box-media */
    .page-khuyen-mai__intro-section {
        padding: 40px 0 !important;
    }

    .page-khuyen-mai__content-area {
        padding: 30px 15px !important;
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
    }

    .page-khuyen-mai__section-title {
        font-size: 2em;
        margin-bottom: 15px;
    }

    .page-khuyen-mai__section-description {
        font-size: 1em;
        margin-bottom: 30px;
    }

    .page-khuyen-mai__feature-grid {
        grid-template-columns: 1fr;
    }

    .page-khuyen-mai__icon-box-media {
        width: 200px !important;
        height: 200px !important;
        border-width: 2px;
    }

    /* 3. Promotion cards/sections (stacking, padding) */
    .page-khuyen-mai__promo-section {
        padding: 40px 0 !important;
    }

    .page-khuyen-mai__promo-grid {
        grid-template-columns: 1fr;
    }

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

    .page-khuyen-mai__promo-image {
        height: 180px; /* Adjust height for mobile */
    }

    .page-khuyen-mai__promo-content {
        padding: 15px;
    }

    .page-khuyen-mai__promo-title {
        font-size: 1.2em;
    }

    .page-khuyen-mai__promo-text {
        font-size: 0.9em;
    }

    /* Guide Section */
    .page-khuyen-mai__guide-section {
        padding: 40px 0 !important;
    }

    .page-khuyen-mai__guide-steps {
        grid-template-columns: 1fr;
        margin-top: 20px;
    }

    .page-khuyen-mai__guide-step {
        padding: 20px;
    }

    .page-khuyen-mai__step-icon {
        width: 50px;
        height: 50px;
        font-size: 1.8em;
    }

    .page-khuyen-mai__step-title {
        font-size: 1.2em;
    }

    /* 4. FAQ section (padding, font size) */
    .page-khuyen-mai__faq-section {
        padding: 40px 0 !important;
    }

    .page-khuyen-mai__faq-list {
        margin-top: 20px;
    }

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

    .page-khuyen-mai__faq-answer {
        padding: 0 15px 15px 15px !important;
        font-size: 0.95em;
    }

    /* 5. General images and containers */
    .page-khuyen-mai img {
        max-width: 100% !important;
        width: 100% !important;
        height: auto !important;
        box-sizing: border-box !important;
    }
    
    .page-khuyen-mai__section,
    .page-khuyen-mai__card,
    .page-khuyen-mai__container,
    .page-khuyen-mai__promo-card,
    .page-khuyen-mai__feature-item,
    .page-khuyen-mai__faq-item {
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
        padding-left: 15px;
        padding-right: 15px;
    }

    /* 6. Buttons and button containers */
    .page-khuyen-mai__cta-button,
    .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;
        padding-right: 15px;
    }

    .page-khuyen-mai__cta-buttons,
    .page-khuyen-mai__button-group,
    .page-khuyen-mai__btn-container {
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
        padding-left: 15px;
        padding-right: 15px;
        flex-wrap: wrap !important;
        gap: 10px;
    }

    .page-khuyen-mai__cta-buttons {
        flex-direction: column;
    }
}

/* Ensure color contrast for dark backgrounds */
.page-khuyen-mai__dark-bg .page-khuyen-mai__section-title,
.page-khuyen-mai__dark-bg .page-khuyen-mai__section-description,
.page-khuyen-mai__dark-bg p,
.page-khuyen-mai__dark-bg li {
    color: #ffffff;
}

.page-khuyen-mai__dark-bg .page-khuyen-mai__promo-card {
    background-color: rgba(255, 255, 255, 0.1);
}

.page-khuyen-mai__dark-bg .page-khuyen-mai__promo-title,
.page-khuyen-mai__dark-bg .page-khuyen-mai__promo-text {
    color: #ffffff;
}

.page-khuyen-mai__dark-bg .page-khuyen-mai__promo-title a {
    color: #ffffff;
}

.page-khuyen-mai__dark-bg .page-khuyen-mai__btn-link {
    color: #ffffff;
    border-color: #ffffff;
}

.page-khuyen-mai__dark-bg .page-khuyen-mai__btn-link:hover {
    background-color: #ffffff;
    color: #26A9E0;
}

.page-khuyen-mai__dark-bg .page-khuyen-mai__faq-item {
    background-color: rgba(255, 255, 255, 0.1);
}

.page-khuyen-mai__dark-bg .page-khuyen-mai__faq-question,
.page-khuyen-mai__dark-bg .page-khuyen-mai__faq-answer {
    color: #ffffff;
}

.page-khuyen-mai__dark-bg .page-khuyen-mai__faq-toggle {
    color: #ffffff;
}