/* style/khuyen-mai.css */

:root {
    --primary-color: #26A9E0;
    --secondary-color: #FFFFFF;
    --text-dark: #333333;
    --text-light: #ffffff;
    --btn-login-color: #EA7C07;
    --border-color: #e0e0e0;
    --spacing-sm: 10px;
    --spacing-md: 20px;
    --spacing-lg: 30px;
}

/* Base styles for the page */
.page-khuyen-mai {
    font-family: 'Arial', sans-serif;
    line-height: 1.6;
    color: var(--text-dark); /* Default text color for light background */
    background-color: var(--secondary-color); /* Assuming body background is light */
}

.page-khuyen-mai__article-wrap {
    max-width: 1150px;
    margin: 0 auto;
    padding: var(--spacing-md) var(--spacing-md);
}

.page-khuyen-mai__hero-section {
    position: relative;
    width: 100%;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding-top: var(--spacing-sm); /* Small top padding, body handles header offset */
}

.page-khuyen-mai__hero-image-wrapper {
    width: 100%;
    max-height: 675px; /* Limit height for aesthetic */
    overflow: hidden;
    display: flex;
    justify-content: center;
    align-items: center;
}

.page-khuyen-mai__hero-image {
    width: 100%;
    height: auto;
    display: block;
    object-fit: cover;
}

.page-khuyen-mai__hero-content {
    padding: var(--spacing-lg) var(--spacing-md);
    text-align: center;
    max-width: 900px;
    width: 100%;
    box-sizing: border-box;
    background-color: var(--secondary-color); /* Explicitly set background for text block */
    color: var(--text-dark);
}

.page-khuyen-mai__main-title {
    font-size: clamp(2.2rem, 4vw, 3.5rem);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
    color: var(--primary-color);
}

.page-khuyen-mai__hero-description {
    font-size: 1.15rem;
    margin-bottom: var(--spacing-lg);
    color: var(--text-dark);
}

.page-khuyen-mai__hero-cta-group {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
    flex-wrap: wrap;
}

.page-khuyen-mai__btn {
    display: inline-block;
    padding: 12px 25px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    transition: background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease;
    white-space: normal;
    word-wrap: break-word;
    max-width: 100%;
    box-sizing: border-box;
    text-align: center;
}

.page-khuyen-mai__btn-primary {
    background-color: var(--primary-color);
    color: var(--text-light);
    border: 2px solid var(--primary-color);
}

.page-khuyen-mai__btn-primary:hover {
    background-color: #1e87b7;
    border-color: #1e87b7;
}

.page-khuyen-mai__btn-secondary {
    background-color: var(--secondary-color);
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
}

.page-khuyen-mai__btn-secondary:hover {
    background-color: var(--primary-color);
    color: var(--text-light);
}

.page-khuyen-mai__section-title {
    font-size: clamp(1.8rem, 3vw, 2.8rem);
    font-weight: 700;
    color: var(--primary-color);
    text-align: center;
    margin-top: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.page-khuyen-mai__paragraph {
    font-size: 1rem;
    margin-bottom: var(--spacing-md);
    line-height: 1.7;
}

.page-khuyen-mai__promo-card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.page-khuyen-mai__promo-card {
    background-color: var(--secondary-color);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 4px 15px 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__card-image {
    width: 100%;
    height: 200px;
    object-fit: cover;
    display: block;
}

.page-khuyen-mai__card-content {
    padding: var(--spacing-md);
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.page-khuyen-mai__card-title {
    font-size: 1.4rem;
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: var(--spacing-sm);
}

.page-khuyen-mai__card-text {
    font-size: 0.95rem;
    color: var(--text-dark);
    margin-bottom: var(--spacing-md);
    flex-grow: 1;
}

.page-khuyen-mai__btn-card {
    margin-top: auto;
    align-self: flex-start;
}

.page-khuyen-mai__figure {
    margin: var(--spacing-lg) 0;
    text-align: center;
}

.page-khuyen-mai__figure img {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    display: block;
    margin: 0 auto;
}

.page-khuyen-mai__figcaption {
    font-style: italic;
    font-size: 0.9rem;
    color: #666;
    margin-top: var(--spacing-sm);
}

.page-khuyen-mai__list,
.page-khuyen-mai__step-list,
.page-khuyen-mai__advantages-list {
    list-style: none;
    padding-left: 0;
    margin-bottom: var(--spacing-md);
}

.page-khuyen-mai__list-item {
    position: relative;
    padding-left: 25px;
    margin-bottom: var(--spacing-sm);
    font-size: 1rem;
}

.page-khuyen-mai__list-item::before {
    content: '✅';
    position: absolute;
    left: 0;
    color: var(--primary-color);
}

.page-khuyen-mai__list-item-title {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: 5px;
}

.page-khuyen-mai__step-item {
    background-color: #f8f8f8;
    border-left: 5px solid var(--primary-color);
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-md);
    border-radius: 5px;
}

.page-khuyen-mai__step-title {
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--primary-color);
    margin-top: 0;
    margin-bottom: var(--spacing-sm);
}

.page-khuyen-mai__cta-block {
    text-align: center;
    background-color: #f0faff;
    padding: var(--spacing-lg);
    border-radius: 10px;
    margin-top: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.page-khuyen-mai__full-width-btn {
    width: 100%;
    max-width: 350px;
}

.page-khuyen-mai__faq-container {
    margin-top: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.page-khuyen-mai__faq-item {
    background-color: var(--secondary-color);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    margin-bottom: var(--spacing-sm);
    overflow: hidden;
}

.page-khuyen-mai__faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 20px;
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--primary-color);
    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;
    pointer-events: none; /* Ensure click on summary opens/closes details */
}

.page-khuyen-mai__faq-toggle {
    font-size: 1.5rem;
    line-height: 1;
    margin-left: var(--spacing-sm);
    pointer-events: none;
}

.page-khuyen-mai__faq-item[open] .page-khuyen-mai__faq-toggle::before {
    content: '-';
}

.page-khuyen-mai__faq-item:not([open]) .page-khuyen-mai__faq-toggle::before {
    content: '+';
}

.page-khuyen-mai__faq-answer {
    padding: 0 20px 15px;
    font-size: 1rem;
    color: var(--text-dark);
    line-height: 1.7;
}

.page-khuyen-mai__final-cta-group {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
    margin-top: var(--spacing-lg);
}

/* Link styling */
.page-khuyen-mai a {
    color: var(--primary-color);
    text-decoration: none;
    transition: color 0.3s ease;
}

.page-khuyen-mai a:hover {
    color: #1e87b7;
    text-decoration: underline;
}

/* Responsive Styles */
@media (max-width: 1024px) {
    .page-khuyen-mai__article-wrap {
        padding: var(--spacing-md) 15px;
    }

    .page-khuyen-mai__main-title {
        font-size: clamp(2rem, 5vw, 3rem);
    }

    .page-khuyen-mai__hero-description {
        font-size: 1.1rem;
    }

    .page-khuyen-mai__btn {
        padding: 10px 20px;
    }

    .page-khuyen-mai__section-title {
        font-size: clamp(1.6rem, 4vw, 2.5rem);
    }

    .page-khuyen-mai__promo-card-grid {
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    }

    .page-khuyen-mai__card-title {
        font-size: 1.3rem;
    }

    .page-khuyen-mai__list-item-title {
        font-size: 1.1rem;
    }

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

@media (max-width: 768px) {
    .page-khuyen-mai {
        font-size: 16px;
        line-height: 1.6;
    }

    .page-khuyen-mai__hero-section {
        padding-top: var(--spacing-sm) !important; /* Small top padding for mobile */
    }

    .page-khuyen-mai__hero-content {
        padding: var(--spacing-md) var(--spacing-sm);
    }

    .page-khuyen-mai__main-title {
        font-size: clamp(1.8rem, 7vw, 2.5rem) !important;
        margin-bottom: var(--spacing-md);
    }

    .page-khuyen-mai__hero-description {
        font-size: 1rem;
        margin-bottom: var(--spacing-md);
    }

    /* Top CTA buttons */
    .page-khuyen-mai__hero-cta-group {
        flex-direction: column;
        gap: var(--spacing-sm);
        padding: 0 15px;
        width: 100%;
        box-sizing: border-box;
    }

    .page-khuyen-mai__btn {
        width: 100% !important;
        max-width: 100% !important;
        box-sizing: border-box !important;
        white-space: normal !important;
        word-wrap: break-word !important;
        padding-left: 15px;
        padding-right: 15px;
    }

    /* Single column content */
    .page-khuyen-mai__article-wrap {
        padding: var(--spacing-md) 15px !important;
        width: 100% !important;
        max-width: 100% !important;
        box-sizing: border-box !important;
    }

    .page-khuyen-mai__section-title {
        font-size: clamp(1.5rem, 6vw, 2.2rem) !important;
        margin-top: var(--spacing-md);
        margin-bottom: var(--spacing-md);
    }

    .page-khuyen-mai__paragraph {
        font-size: 0.95rem;
    }

    /* Generic images and figure */
    .page-khuyen-mai img {
        max-width: 100% !important;
        width: 100% !important;
        height: auto !important;
        display: block !important;
    }

    .page-khuyen-mai__figure {
        margin: var(--spacing-md) 0;
    }

    .page-khuyen-mai__promo-card-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }

    .page-khuyen-mai__promo-card {
        margin-bottom: var(--spacing-md);
    }

    .page-khuyen-mai__card-image {
        height: 180px;
    }

    .page-khuyen-mai__card-title {
        font-size: 1.2rem;
    }

    .page-khuyen-mai__card-text {
        font-size: 0.9rem;
    }

    .page-khuyen-mai__list-item,
    .page-khuyen-mai__step-item {
        font-size: 0.95rem;
        padding-left: 20px;
    }

    .page-khuyen-mai__list-item-title {
        font-size: 1.1rem;
    }

    .page-khuyen-mai__step-title {
        font-size: 1.15rem;
    }

    .page-khuyen-mai__cta-block {
        padding: var(--spacing-md);
    }

    .page-khuyen-mai__full-width-btn {
        max-width: 100% !important;
    }

    /* FAQ section */
    .page-khuyen-mai__faq-question {
        padding: 12px 15px;
        font-size: 1rem;
    }

    .page-khuyen-mai__faq-answer {
        padding: 0 15px 12px;
        font-size: 0.95rem;
    }

    /* Final CTA buttons */
    .page-khuyen-mai__final-cta-group {
        flex-direction: column;
        gap: var(--spacing-sm);
        padding: 0 15px;
        width: 100%;
        box-sizing: border-box;
    }

    .page-khuyen-mai__final-cta-group .page-khuyen-mai__btn {
        width: 100% !important;
        max-width: 100% !important;
    }

    /* Containers with images/buttons */
    .page-khuyen-mai__section,
    .page-khuyen-mai__card,
    .page-khuyen-mai__container,
    .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;
    }

    .page-khuyen-mai__cta-buttons {
        flex-wrap: wrap !important;
        gap: 10px;
        flex-direction: column;
    }
}