/* style/khuyen-mai.css */

:root {
    --primary-color: #E53935;
    --secondary-color: #FF5A4F;
    --text-main-color: #333333;
    --card-bg-color: #FFFFFF;
    --background-light-color: #F5F7FA;
    --border-color: #E0E0E0;
    --gradient-button: linear-gradient(180deg, #FF5A4F 0%, #E53935 100%);
}

.page-khuyen-mai {
    font-family: Arial, sans-serif;
    color: var(--text-main-color);
    background-color: var(--background-light-color); /* Fallback for body background, assuming light */
}

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

.page-khuyen-mai__container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
}

.page-khuyen-mai__hero-container {
    display: flex;
    align-items: center;
    gap: 40px;
    flex-wrap: wrap;
    padding: 40px 15px;
}

.page-khuyen-mai__hero-content {
    flex: 1;
    min-width: 300px;
}

.page-khuyen-mai__main-title {
    font-size: clamp(2.2em, 4vw, 3.2em);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 20px;
    color: var(--primary-color);
}

.page-khuyen-mai__description {
    font-size: 1.1em;
    line-height: 1.6;
    margin-bottom: 30px;
    color: var(--text-main-color);
}

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

.page-khuyen-mai__btn-primary,
.page-khuyen-mai__btn-secondary,
.page-khuyen-mai__btn-small {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 25px;
    border-radius: 8px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s ease;
    white-space: normal; /* Allow text wrapping */
    word-wrap: break-word; /* Allow text wrapping */
    box-sizing: border-box;
    max-width: 100%;
}

.page-khuyen-mai__btn-primary {
    background: var(--gradient-button);
    color: #ffffff;
    border: 2px solid transparent;
}

.page-khuyen-mai__btn-primary:hover {
    opacity: 0.9;
    transform: translateY(-2px);
}

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

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

.page-khuyen-mai__btn-small {
    padding: 8px 18px;
    font-size: 0.9em;
    background: var(--gradient-button);
    color: #ffffff;
    border: none;
}

.page-khuyen-mai__btn-small:hover {
    opacity: 0.9;
}

.page-khuyen-mai__btn-link {
    display: inline-block;
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    margin-top: 10px;
}

.page-khuyen-mai__btn-link:hover {
    text-decoration: underline;
}

.page-khuyen-mai__image-wrapper {
    flex: 1;
    min-width: 300px;
    text-align: center;
}

.page-khuyen-mai__hero-image {
    max-width: 100%;
    height: auto;
    border-radius: 10px;
    display: block;
    margin: 0 auto;
}

.page-khuyen-mai__promo-overview-section,
.page-khuyen-mai__featured-promos-section,
.page-khuyen-mai__faq-section {
    padding: 60px 0;
    background-color: var(--background-light-color);
}

.page-khuyen-mai__dark-section {
    background-color: var(--primary-color);
    color: #ffffff;
    padding: 60px 0;
}

.page-khuyen-mai__dark-section .page-khuyen-mai__section-title,
.page-khuyen-mai__dark-section .page-khuyen-mai__section-description,
.page-khuyen-mai__dark-section .page-khuyen-mai__step-title,
.page-khuyen-mai__dark-section .page-khuyen-mai__step-text {
    color: #ffffff;
}

.page-khuyen-mai__section-title {
    font-size: clamp(1.8em, 3.5vw, 2.5em);
    font-weight: 700;
    text-align: center;
    margin-bottom: 20px;
    color: var(--primary-color);
}

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

.page-khuyen-mai__section-description {
    font-size: 1.1em;
    line-height: 1.6;
    text-align: center;
    max-width: 800px;
    margin: 0 auto 40px;
    color: var(--text-main-color);
}

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

.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: var(--card-bg-color);
    border-radius: 10px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
    padding: 25px;
    text-align: center;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    border: 1px solid var(--border-color);
}

.page-khuyen-mai__promo-card-image {
    margin-bottom: 20px;
}

.page-khuyen-mai__promo-card-image img {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    display: block;
    margin: 0 auto;
}

.page-khuyen-mai__promo-card-title {
    font-size: 1.4em;
    font-weight: 600;
    margin-bottom: 15px;
    color: var(--primary-color);
}

.page-khuyen-mai__promo-card-text {
    font-size: 1em;
    line-height: 1.5;
    color: var(--text-main-color);
    margin-bottom: 20px;
    flex-grow: 1;
}

.page-khuyen-mai__promo-item {
    display: flex;
    align-items: center;
    gap: 40px;
    background-color: var(--card-bg-color);
    border-radius: 10px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
    padding: 30px;
    margin-bottom: 30px;
    border: 1px solid var(--border-color);
}

.page-khuyen-mai__promo-item:nth-child(even) {
    flex-direction: row-reverse;
}

.page-khuyen-mai__promo-item-image {
    flex: 1;
    min-width: 300px;
    text-align: center;
}

.page-khuyen-mai__promo-item-image img {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    display: block;
    margin: 0 auto;
}

.page-khuyen-mai__promo-item-content {
    flex: 1;
    min-width: 300px;
}

.page-khuyen-mai__promo-item-title {
    font-size: 1.6em;
    font-weight: 700;
    margin-bottom: 15px;
    color: var(--primary-color);
}

.page-khuyen-mai__promo-item-text {
    font-size: 1.1em;
    line-height: 1.6;
    color: var(--text-main-color);
    margin-bottom: 20px;
}

.page-khuyen-mai__promo-features {
    list-style: none;
    padding: 0;
    margin-bottom: 20px;
}

.page-khuyen-mai__promo-features li {
    font-size: 1em;
    line-height: 1.5;
    color: var(--text-main-color);
    margin-bottom: 8px;
    position: relative;
    padding-left: 25px;
}

.page-khuyen-mai__promo-features li::before {
    content: '✔';
    color: var(--primary-color);
    position: absolute;
    left: 0;
    font-weight: bold;
}

.page-khuyen-mai__steps {
    list-style: none;
    padding: 0;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.page-khuyen-mai__step-item {
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 10px;
    padding: 25px;
    text-align: center;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.page-khuyen-mai__step-icon {
    margin-bottom: 20px;
}

.page-khuyen-mai__step-icon img {
    width: 100%;
    max-width: 200px; /* Constrain size for square icons */
    height: 200px; /* Maintain aspect ratio */
    object-fit: cover; /* Ensure image covers the area */
    border-radius: 8px;
    display: block;
    margin: 0 auto;
}

.page-khuyen-mai__step-title {
    font-size: 1.4em;
    font-weight: 600;
    margin-bottom: 15px;
    color: #ffffff;
}

.page-khuyen-mai__step-text {
    font-size: 1em;
    line-height: 1.5;
    color: #f0f0f0;
    margin-bottom: 15px;
}

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

.page-khuyen-mai__faq-item {
    background-color: var(--card-bg-color);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    margin-bottom: 15px;
    overflow: hidden;
}

.page-khuyen-mai__faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 18px 25px;
    font-size: 1.1em;
    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-toggle {
    font-size: 1.5em;
    line-height: 1;
    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 25px 20px;
    font-size: 1em;
    line-height: 1.6;
    color: var(--text-main-color);
    border-top: 1px solid var(--border-color);
    margin-top: -1px; /* Overlap border to avoid double line */
}

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

    .page-khuyen-mai__hero-content {
        order: 2;
    }

    .page-khuyen-mai__image-wrapper {
        order: 1;
        margin-bottom: 30px;
    }

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

    .page-khuyen-mai__promo-item:nth-child(even) {
        flex-direction: column;
    }
}

@media (max-width: 768px) {
    .page-khuyen-mai__hero-section {
        padding-top: 10px !important;
        padding-bottom: 40px;
    }

    .page-khuyen-mai__hero-container,
    .page-khuyen-mai__promo-overview-section .page-khuyen-mai__container,
    .page-khuyen-mai__featured-promos-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: 15px !important;
        padding-right: 15px !important;
    }

    .page-khuyen-mai__main-title {
        font-size: 2em; /* Smaller H1 for mobile */
    }

    .page-khuyen-mai__description,
    .page-khuyen-mai__section-description {
        font-size: 1em;
    }

    .page-khuyen-mai__cta-buttons {
        flex-direction: column; /* Stack buttons vertically */
        gap: 10px;
    }

    .page-khuyen-mai__btn-primary,
    .page-khuyen-mai__btn-secondary,
    .page-khuyen-mai__btn-small,
    .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__promo-grid,
    .page-khuyen-mai__steps {
        grid-template-columns: 1fr;
    }

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

    .page-khuyen-mai__promo-item-title {
        font-size: 1.3em;
    }

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

    .page-khuyen-mai__step-title {
        font-size: 1.3em;
    }

    .page-khuyen-mai__step-icon img {
         /* Adjust size for mobile */
         /* Maintain aspect ratio */
    }

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

    .page-khuyen-mai__faq-answer {
        padding: 0 20px 15px;
    }

    /* General image responsiveness for content area */
    .page-khuyen-mai img {
        max-width: 100% !important;
        width: 100% !important;
        height: auto !important;
        display: block !important;
    }

    .page-khuyen-mai__section,
    .page-khuyen-mai__card,
    .page-khuyen-mai__container {
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
        padding-left: 15px;
        padding-right: 15px;
    }
    /* Exception for step icons to maintain square shape */
    .page-khuyen-mai__step-icon img {
         /* Fixed height to maintain square */
         /* Fixed width to maintain square */
        object-fit: cover !important;
    }
}