/* style/khuyen-mai.css */

/* General styles for the page content container */
.page-khuyen-mai {
    font-family: 'Arial', sans-serif;
    color: var(--text-main-color, #1F2D3D); /* Fallback to Text Main */
    background-color: var(--background-color, #F4F7FB); /* Fallback to Background */
    line-height: 1.6;
}

/* Container for consistent content width */
.page-khuyen-mai__container {
    max-width: 1170px;
    margin: 0 auto;
    padding: 40px 16px;
    box-sizing: border-box;
}

/* Section titles */
.page-khuyen-mai__section-title {
    font-size: 2.5em;
    font-weight: 700;
    color: var(--text-main-color, #1F2D3D);
    text-align: center;
    margin-bottom: 20px;
    line-height: 1.2;
}

/* Section descriptions */
.page-khuyen-mai__section-description {
    font-size: 1.1em;
    color: var(--text-main-color, #1F2D3D);
    text-align: center;
    max-width: 800px;
    margin: 0 auto 40px;
}

/* --- Buttons --- */
.page-khuyen-mai__btn-primary {
    display: inline-block;
    padding: 12px 28px;
    border-radius: 8px;
    background: linear-gradient(180deg, #4A8BFF 0%, #2F6BFF 100%); /* Custom Button Color */
    color: #ffffff;
    font-size: 1em;
    font-weight: 600;
    text-decoration: none;
    text-align: center;
    transition: background-color 0.3s ease, transform 0.3s ease;
    border: none;
    cursor: pointer;
    box-shadow: 0 4px 10px rgba(47, 107, 255, 0.3);
    max-width: 100%; /* Ensure responsiveness */
    box-sizing: border-box;
    white-space: normal;
    word-wrap: break-word;
}

.page-khuyen-mai__btn-primary:hover {
    background: linear-gradient(180deg, #2F6BFF 0%, #4A8BFF 100%);
    transform: translateY(-2px);
}

.page-khuyen-mai__btn-secondary {
    display: inline-block;
    padding: 12px 28px;
    border-radius: 8px;
    background-color: #ffffff; /* Card BG */
    color: var(--main-color, #2F6BFF); /* Main Color */
    font-size: 1em;
    font-weight: 600;
    text-decoration: none;
    text-align: center;
    transition: background-color 0.3s ease, transform 0.3s ease;
    border: 2px solid var(--main-color, #2F6BFF);
    cursor: pointer;
    max-width: 100%; /* Ensure responsiveness */
    box-sizing: border-box;
    white-space: normal;
    word-wrap: break-word;
}

.page-khuyen-mai__btn-secondary:hover {
    background-color: var(--main-color, #2F6BFF);
    color: #ffffff;
    transform: translateY(-2px);
}

.page-khuyen-mai__btn-small {
    padding: 8px 20px;
    font-size: 0.9em;
}

/* --- Hero Section --- */
.page-khuyen-mai__hero-section {
    padding-top: 10px; /* Small top padding, body handles header offset */
    padding-bottom: 60px;
    background-color: var(--background-color, #F4F7FB);
}

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

.page-khuyen-mai__hero-content {
    flex: 1 1 45%;
    min-width: 300px;
    color: var(--text-main-color, #1F2D3D);
}

.page-khuyen-mai__hero-title {
    font-size: 3.2em; 
    font-weight: 800;
    margin-bottom: 20px;
    line-height: 1.2;
    color: var(--text-main-color, #1F2D3D);
}

.page-khuyen-mai__hero-description {
    font-size: 1.2em;
    margin-bottom: 30px;
    line-height: 1.6;
    color: var(--text-main-color, #1F2D3D);
}

.page-khuyen-mai__hero-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%;
    min-width: 300px;
    text-align: center;
}

.page-khuyen-mai__hero-side-image {
    max-width: 100%;
    height: auto;
    border-radius: 12px;
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.1);
    display: block; /* Ensure it behaves as a block element */
}

/* --- Intro Section (with 3 circular images) --- */
.page-khuyen-mai__intro-section {
    padding: 60px 0;
    background-color: #ffffff; /* Card BG */
}

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

.page-khuyen-mai__feature-item {
    text-align: center;
    padding: 25px;
    background-color: var(--background-color, #F4F7FB); /* Background */
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.page-khuyen-mai__feature-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.1);
}

.page-khuyen-mai__icon-box-media {
    width: 200px; /* Fixed width for circular image */
    height: 200px; /* Fixed height for circular image */
    aspect-ratio: 1/1; /* Ensure perfect square */
    margin: 0 auto 20px;
    border-radius: 50%;
    overflow: hidden;
    border: 4px solid var(--border-color, #D6E2FF); /* Border */
    box-shadow: 0 0 0 8px rgba(47, 107, 255, 0.1); /* Glow effect */
}

.page-khuyen-mai__icon-box-media img {
    width: 100%;
    height: 100%;
    object-fit: cover; /* Ensure image fills the circle */
    border-radius: 50%; /* Make the image itself circular */
    display: block;
}

.page-khuyen-mai__feature-title {
    font-size: 1.5em;
    font-weight: 700;
    color: var(--text-main-color, #1F2D3D);
    margin-bottom: 10px;
}

.page-khuyen-mai__feature-text {
    font-size: 1em;
    color: var(--text-main-color, #1F2D3D);
}

/* --- Promo List Section --- */
.page-khuyen-mai__promo-list-section {
    padding: 60px 0;
    background-color: var(--background-color, #F4F7FB); /* Background */
}

.page-khuyen-mai__promo-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.page-khuyen-mai__promo-card {
    background-color: #ffffff; /* Card BG */
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.08);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    display: flex;
    flex-direction: column;
}

.page-khuyen-mai__promo-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
}

.page-khuyen-mai__promo-image {
    width: 100%;
    height: 220px; /* Fixed height for promo images */
    object-fit: cover;
    display: block;
}

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

.page-khuyen-mai__promo-title {
    font-size: 1.4em;
    font-weight: 700;
    color: var(--text-main-color, #1F2D3D);
    margin-bottom: 15px;
}

.page-khuyen-mai__promo-text {
    font-size: 1em;
    color: var(--text-main-color, #1F2D3D);
    margin-bottom: 20px;
    flex-grow: 1; /* Allow text to take available space */
}

/* --- Guide Section --- */
.page-khuyen-mai__guide-section {
    padding: 60px 0;
    background-color: #ffffff; /* Card BG */
}

.page-khuyen-mai__guide-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 25px;
    margin-top: 40px;
}

.page-khuyen-mai__guide-item {
    background-color: var(--background-color, #F4F7FB); /* Background */
    padding: 25px;
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
}

.page-khuyen-mai__guide-step-title {
    font-size: 1.3em;
    font-weight: 700;
    color: var(--main-color, #2F6BFF); /* Main Color */
    margin-bottom: 10px;
}

.page-khuyen-mai__guide-step-text {
    font-size: 1em;
    color: var(--text-main-color, #1F2D3D);
}

.page-khuyen-mai__guide-image {
    max-width: 100%;
    height: auto;
    border-radius: 12px;
    margin-top: 40px;
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.08);
    display: block;
}

/* --- FAQ Section --- */
.page-khuyen-mai__faq-section {
    padding: 60px 0;
    background-color: var(--background-color, #F4F7FB); /* Background */
}

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

.page-khuyen-mai__faq-item {
    background-color: #ffffff; /* Card BG */
    border-radius: 12px;
    margin-bottom: 15px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    overflow: hidden;
}

.page-khuyen-mai__faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 25px;
    font-size: 1.2em;
    font-weight: 600;
    color: var(--text-main-color, #1F2D3D);
    cursor: pointer;
    background-color: #ffffff;
    border-bottom: 1px solid var(--border-color, #D6E2FF); /* Border */
    list-style: none; /* Hide default marker for <summary> */
    user-select: none; /* Prevent text selection on click */
}

/* Hide default details marker */
.page-khuyen-mai__faq-item summary::-webkit-details-marker,
.page-khuyen-mai__faq-item summary::marker {
    display: none;
    content: "";
}

.page-khuyen-mai__faq-toggle {
    font-size: 1.5em;
    color: var(--main-color, #2F6BFF);
    margin-left: 15px;
    transition: transform 0.3s ease;
}

.page-khuyen-mai__faq-item[open] .page-khuyen-mai__faq-toggle {
    transform: rotate(45deg); /* Rotate '+' to 'x' or similar */
}

.page-khuyen-mai__faq-answer {
    padding: 0 25px 20px;
    font-size: 1em;
    color: var(--text-main-color, #1F2D3D);
    line-height: 1.6;
}

/* --- Responsive Styles --- */
/* Mobile @media (max-width: 768px) */
@media (max-width: 768px) {
    /* General adjustments */
    .page-khuyen-mai {
        font-size: 16px;
        line-height: 1.6;
    }

    .page-khuyen-mai__container {
        padding: 20px 15px;
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
    }

    .page-khuyen-mai__section-title {
        font-size: 1.8em;
        margin-bottom: 15px;
    }

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

    /* Hero Section */
    .page-khuyen-mai__hero-section {
        padding-top: 10px !important;
        padding-bottom: 30px;
    }

    .page-khuyen-mai__hero-container {
        flex-direction: column;
        padding: 20px 15px;
        gap: 30px;
    }

    .page-khuyen-mai__hero-content {
        min-width: unset;
        width: 100%;
        text-align: center;
    }

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

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

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

    .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__hero-image {
        min-width: unset;
        width: 100%;
    }

    .page-khuyen-mai__hero-side-image {
        max-width: 100% !important;
        width: 100% !important;
        height: auto !important;
    }

    /* Intro Section */
    .page-khuyen-mai__intro-section {
        padding: 30px 0;
    }

    .page-khuyen-mai__features-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .page-khuyen-mai__icon-box-media {
        width: 150px;
        height: 150px;
        margin-bottom: 15px;
    }

    .page-khuyen-mai__icon-box-media img {
        width: 100%;
        height: 100%;
        object-fit: cover;
    }

    /* Promo List Section */
    .page-khuyen-mai__promo-list-section {
        padding: 30px 0;
    }

    .page-khuyen-mai__promo-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .page-khuyen-mai__promo-image {
        height: 180px;
        max-width: 100% !important;
        width: 100% !important;
        height: auto !important;
        object-fit: cover;
    }
    
    .page-khuyen-mai__promo-content {
        padding: 20px;
    }

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

    .page-khuyen-mai__promo-text {
        font-size: 0.95em;
    }

    /* Guide Section */
    .page-khuyen-mai__guide-section {
        padding: 30px 0;
    }

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

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

    .page-khuyen-mai__guide-step-title {
        font-size: 1.1em;
    }

    .page-khuyen-mai__guide-image {
        margin-top: 30px;
        max-width: 100% !important;
        width: 100% !important;
        height: auto !important;
    }

    /* FAQ Section */
    .page-khuyen-mai__faq-section {
        padding: 30px 0;
    }

    .page-khuyen-mai__faq-question {
        padding: 15px 20px;
        font-size: 1.1em;
    }

    .page-khuyen-mai__faq-answer {
        padding: 0 20px 15px;
        font-size: 0.95em;
    }

    /* Universal image responsive styles for content area */
    .page-khuyen-mai img {
        max-width: 100% !important;
        width: 100% !important;
        height: auto !important;
        display: block !important;
    }
    
    /* Ensure all containing elements also adapt */
    .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__guide-item,
    .page-khuyen-mai__faq-item {
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
    }
    /* Adjust padding for containers within sections */
    .page-khuyen-mai__hero-section .page-khuyen-mai__container,
    .page-khuyen-mai__intro-section .page-khuyen-mai__container {
        padding-left: 15px !important;
        padding-right: 15px !important;
    }
    .page-khuyen-mai__promo-list-section .page-khuyen-mai__container,
    .page-khuyen-mai__guide-section .page-khuyen-mai__container,
    .page-khuyen-mai__faq-section .page-khuyen-mai__container {
        padding-left: 0 !important;
        padding-right: 0 !important;
    }
    .page-khuyen-mai__promo-grid,
    .page-khuyen-mai__guide-steps,
    .page-khuyen-mai__faq-list {
        padding: 0 15px !important;
    }
}