/* style/khuyen-mai.css */

/* General styles for the page content, ensuring contrast with assumed light body background */
.page-khuyen-mai {
    font-family: Arial, sans-serif;
    line-height: 1.6;
    color: #333333; /* Dark text for light background */
    background: var(--background-color, #FFFFFF); /* Default to white if var is not set */
}

.page-khuyen-mai__dark-bg {
    background-color: #017439; /* Primary brand color */
    color: #FFFFFF; /* White text for dark background */
}

.page-khuyen-mai__light-bg {
    background-color: #FFFFFF; /* Auxiliary brand color / white */
    color: #333333; /* Dark text for light background */
}

.page-khuyen-mai__section-title {
    font-size: 2.2em;
    font-weight: bold;
    color: #017439; /* Primary brand color for titles */
    text-align: center;
    margin-bottom: 20px;
    line-height: 1.2;
}

.page-khuyen-mai__section-description {
    font-size: 1.1em;
    text-align: center;
    margin-bottom: 40px;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.page-khuyen-mai__text-block {
    margin-bottom: 15px;
    text-align: justify;
}

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

.page-khuyen-mai__centered-text {
    text-align: center;
}

/* --- Buttons --- */
.page-khuyen-mai__btn-primary,
.page-khuyen-mai__btn-secondary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 25px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: bold;
    cursor: pointer;
    transition: background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease;
    box-sizing: border-box;
    max-width: 100%; /* Ensure responsiveness */
    white-space: normal; /* Allow text wrap */
    word-wrap: break-word; /* Allow text wrap */
    text-align: center;
}

.page-khuyen-mai__btn-primary {
    background-color: #017439; /* Primary brand color */
    color: #FFFFFF;
    border: 2px solid #017439;
}

.page-khuyen-mai__btn-primary:hover {
    background-color: #005a2e;
    border-color: #005a2e;
}

.page-khuyen-mai__btn-secondary {
    background-color: #FFFFFF;
    color: #017439; /* Primary brand color */
    border: 2px solid #017439;
}

.page-khuyen-mai__btn-secondary:hover {
    background-color: #f0f0f0;
    color: #005a2e;
    border-color: #005a2e;
}

.page-khuyen-mai__btn-small {
    padding: 8px 18px;
    font-size: 0.9em;
}

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

/* --- Hero Section --- */
.page-khuyen-mai__hero-section {
    padding-top: 10px; /* Small top padding, assuming body handles header offset */
    padding-bottom: 40px;
    background: linear-gradient(to right, #e0ffe0, #ffffff); /* Light gradient background */
}

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

.page-khuyen-mai__hero-content {
    flex: 1 1 45%;
    min-width: 300px;
    color: #333333; /* Dark text for light background */
}

.page-khuyen-mai__main-title {
    font-size: clamp(2.5em, 5vw, 3.5em); /* Responsive H1 font size */
    font-weight: bold;
    color: #017439; /* Primary brand color */
    margin-bottom: 20px;
    line-height: 1.2;
    text-align: left;
}

.page-khuyen-mai__hero-description {
    font-size: 1.2em;
    margin-bottom: 30px;
    text-align: left;
}

.page-khuyen-mai__cta-buttons {
    display: flex;
    gap: 15px;
    flex-wrap: wrap; /* Allow buttons to wrap on smaller screens */
}

.page-khuyen-mai__hero-image {
    flex: 1 1 45%;
    text-align: center;
    display: flex;
    justify-content: center;
    align-items: center;
}

.page-khuyen-mai__hero-side-image {
    max-width: 600px;
    width: 100%;
    height: auto;
    border-radius: 10px;
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.1);
    display: block; /* Ensure it behaves as a block element */
}

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

/* --- Promotion Grid Section --- */
.page-khuyen-mai__promo-grid-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;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transition: transform 0.3s ease;
}

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

.page-khuyen-mai__promo-media {
    width: 100%;
    height: 200px; /* Fixed height for image container */
    overflow: hidden;
}

.page-khuyen-mai__promo-media img {
    width: 100%;
    height: 100%;
    object-fit: cover; /* Ensure image covers the area */
    display: block;
}

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

.page-khuyen-mai__promo-title {
    font-size: 1.5em;
    font-weight: bold;
    color: #017439;
    margin-bottom: 10px;
}

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

/* --- How To Claim Section --- */
.page-khuyen-mai__how-to-claim-section {
    padding: 60px 0;
}

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

.page-khuyen-mai__step-item {
    background-color: rgba(255, 255, 255, 0.1); /* Semi-transparent white on dark background */
    border-radius: 10px;
    padding: 30px;
    text-align: center;
    color: #FFFFFF;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.page-khuyen-mai__step-number {
    font-size: 2.5em;
    font-weight: bold;
    color: #FFFF00; /* Highlight color */
    margin-bottom: 10px;
    display: block;
}

.page-khuyen-mai__step-title {
    font-size: 1.3em;
    font-weight: bold;
    margin-bottom: 15px;
    color: #FFFFFF;
}

.page-khuyen-mai__step-text {
    font-size: 1em;
    color: #f0f0f0;
}

.page-khuyen-mai__step-text a {
    color: #FFFF00;
    text-decoration: underline;
}

.page-khuyen-mai__step-text a:hover {
    color: #e0e0e0;
}

.page-khuyen-mai__centered-cta {
    text-align: center;
    margin-top: 40px;
}

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

.page-khuyen-mai__terms-list {
    list-style: disc;
    padding-left: 25px;
    margin-top: 20px;
    color: #555555;
}

.page-khuyen-mai__terms-list li {
    margin-bottom: 10px;
    font-size: 1em;
}

/* --- 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: 1px solid #e0e0e0;
    border-radius: 8px;
    margin-bottom: 15px;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.page-khuyen-mai__faq-item summary {
    list-style: none; /* Hide default marker */
    cursor: pointer;
    padding: 20px 25px;
    font-weight: bold;
    font-size: 1.1em;
    color: #017439;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.page-khuyen-mai__faq-item summary::-webkit-details-marker {
    display: none; /* Hide for webkit browsers */
}

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

.page-khuyen-mai__faq-toggle {
    font-size: 1.5em;
    line-height: 1;
    margin-left: 15px;
    color: #555555;
}

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

.page-khuyen-mai__faq-answer {
    padding: 0 25px 20px;
    font-size: 1em;
    color: #555555;
    border-top: 1px solid #e0e0e0;
    margin-top: -1px; /* Overlap border */
}

.page-khuyen-mai__faq-answer p {
    margin: 0;
}

/* --- Final Call to Action Section --- */
.page-khuyen-mai__call-to-action-final {
    padding: 80px 0;
    text-align: center;
}

.page-khuyen-mai__call-to-action-final .page-khuyen-mai__section-title,
.page-khuyen-mai__call-to-action-final .page-khuyen-mai__section-description {
    color: #FFFFFF;
}

/* --- Responsive Design --- */
@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__main-title,
    .page-khuyen-mai__hero-description {
        text-align: center;
    }
    .page-khuyen-mai__cta-buttons {
        justify-content: center;
    }
    .page-khuyen-mai__hero-image {
        flex: 1 1 100%;
        margin-top: 30px;
    }
}

@media (max-width: 768px) {
    /* General content padding and width */
    .page-khuyen-mai__content-area {
        padding: 30px 15px !important;
        width: 100% !important;
        max-width: 100% !important;
        box-sizing: border-box !important;
    }

    /* Section Titles */
    .page-khuyen-mai__section-title {
        font-size: 1.8em !important;
        margin-bottom: 15px !important;
    }

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

    /* --- HERO Section --- */
    .page-khuyen-mai__hero-section {
        padding-top: 10px !important; /* Small top padding, assuming body handles header offset */
        padding-bottom: 30px !important;
    }
    .page-khuyen-mai__hero-container {
        padding: 20px 15px !important;
        gap: 20px !important;
    }
    .page-khuyen-mai__hero-content {
        min-width: unset !important;
    }
    .page-khuyen-mai__main-title {
        font-size: clamp(2em, 8vw, 2.5em) !important; /* Adjust clamp for smaller screens */
        margin-bottom: 15px !important;
    }
    .page-khuyen-mai__hero-description {
        font-size: 1em !important;
        margin-bottom: 20px !important;
    }
    .page-khuyen-mai__cta-buttons {
        flex-direction: column !important; /* Stack buttons vertically */
        gap: 10px !important;
    }
    .page-khuyen-mai__btn-primary,
    .page-khuyen-mai__btn-secondary {
        max-width: 100% !important;
        width: 100% !important;
        padding-left: 15px !important;
        padding-right: 15px !important;
        white-space: normal !important;
        word-wrap: break-word !important;
    }
    .page-khuyen-mai__hero-image {
        margin-top: 20px !important;
    }
    .page-khuyen-mai__hero-side-image {
        max-width: 100% !important;
        height: auto !important;
    }

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

    /* --- Promotion Grid Section --- */
    .page-khuyen-mai__promo-grid-section {
        padding: 40px 0 !important;
    }
    .page-khuyen-mai__promo-grid {
        grid-template-columns: 1fr !important; /* Single column */
        gap: 20px !important;
    }
    .page-khuyen-mai__promo-card {
        padding: 0 !important; /* Remove card padding if any, content handles it */
    }
    .page-khuyen-mai__promo-media {
        height: 180px !important; /* Adjust image height */
    }
    .page-khuyen-mai__promo-media img {
        max-width: 100% !important;
        height: 100% !important; /* object-fit: cover handles this */
    }
    .page-khuyen-mai__promo-content {
        padding: 15px !important;
    }
    .page-khuyen-mai__promo-title {
        font-size: 1.3em !important;
        margin-bottom: 8px !important;
    }
    .page-khuyen-mai__promo-text {
        font-size: 0.95em !important;
        margin-bottom: 15px !important;
    }
    .page-khuyen-mai__btn-small {
        padding: 10px 15px !important;
        font-size: 0.9em !important;
        max-width: 100% !important;
        width: 100% !important;
    }

    /* --- How To Claim Section --- */
    .page-khuyen-mai__how-to-claim-section {
        padding: 40px 0 !important;
    }
    .page-khuyen-mai__steps-grid {
        grid-template-columns: 1fr !important; /* Single column */
        gap: 20px !important;
        margin-top: 30px !important;
    }
    .page-khuyen-mai__step-item {
        padding: 20px !important;
    }
    .page-khuyen-mai__step-number {
        font-size: 2em !important;
    }
    .page-khuyen-mai__step-title {
        font-size: 1.2em !important;
    }
    .page-khuyen-mai__btn-large {
        max-width: 100% !important;
        width: 100% !important;
        padding-left: 15px !important;
        padding-right: 15px !important;
    }

    /* --- Terms Section --- */
    .page-khuyen-mai__terms-section {
        padding: 40px 0 !important;
    }
    .page-khuyen-mai__terms-list {
        padding-left: 20px !important;
    }
    .page-khuyen-mai__terms-list li {
        font-size: 0.95em !important;
    }
    /* Button secondary already handled by general button rules above */

    /* --- FAQ Section --- */
    .page-khuyen-mai__faq-section {
        padding: 40px 0 !important;
    }
    .page-khuyen-mai__faq-list {
        margin-top: 30px !important;
    }
    .page-khuyen-mai__faq-item summary {
        padding: 15px 20px !important;
        font-size: 1em !important;
    }
    .page-khuyen-mai__faq-toggle {
        font-size: 1.3em !important;
    }
    .page-khuyen-mai__faq-answer {
        padding: 0 20px 15px !important;
        font-size: 0.95em !important;
    }

    /* --- Final Call to Action Section --- */
    .page-khuyen-mai__call-to-action-final {
        padding: 60px 0 !important;
    }

    /* --- Universal Image Responsive --- */
    .page-khuyen-mai img {
        max-width: 100% !important;
        height: auto !important;
        display: block !important;
    }
    /* Ensure containers for images also adapt */
    .page-khuyen-mai__promo-media,
    .page-khuyen-mai__hero-image,
    .page-khuyen-mai__promo-card {
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
        overflow: hidden !important;
    }

    /* Module 1 three-column image rule (not applicable to this page's structure but included for completeness if it were) */
    /* .page-khuyen-mai__icon-box-media { width: 200px !important; height: 200px !important; border-radius: 50% !important; } */
}