/* style/khuyen-mai.css */

:root {
    --primary-color: #2F6BFF;
    --secondary-color: #6FA3FF;
    --text-main-color: #1F2D3D;
    --text-dark-color: #000000;
    --background-color: #F4F7FB;
    --card-bg-color: #FFFFFF;
    --border-color: #D6E2FF;
    --glow-color: #A5C4FF;
    --button-gradient: linear-gradient(180deg, #4A8BFF 0%, #2F6BFF 100%);
}

.page-khuyen-mai {
    font-family: Arial, sans-serif;
    color: var(--text-main-color);
    line-height: 1.6;
    background-color: var(--background-color);
}

.page-khuyen-mai__section {
    padding: 60px 0;
}

.page-khuyen-mai__container {
    max-width: 1170px;
    margin: 0 auto;
    padding: 0 16px;
}

.page-khuyen-mai__section-title {
    font-size: 3em;
    font-weight: bold;
    color: var(--text-dark-color);
    text-align: center;
    margin-bottom: 20px;
}

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

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

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

.page-khuyen-mai__hero-content {
    flex: 1;
    min-width: 400px;
    text-align: left;
}

.page-khuyen-mai__hero-title {
    font-size: 3.5em;
    font-weight: 700;
    color: var(--text-dark-color);
    margin-bottom: 20px;
    line-height: 1.2;
}

.page-khuyen-mai__hero-description {
    font-size: 1.2em;
    color: var(--text-main-color);
    margin-bottom: 30px;
}

.page-khuyen-mai__hero-cta-buttons {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
}

.page-khuyen-mai__hero-image {
    flex: 1;
    min-width: 400px;
    text-align: center;
}

.page-khuyen-mai__hero-side-image {
    max-width: 100%;
    height: auto;
    border-radius: 12px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

/* Buttons */
.page-khuyen-mai__btn-primary,
.page-khuyen-mai__btn-secondary,
.page-khuyen-mai__btn-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 28px;
    border-radius: 8px;
    font-size: 1.1em;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s ease;
    white-space: normal;
    word-wrap: break-word;
    box-sizing: border-box;
    max-width: 100%;
}

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

.page-khuyen-mai__btn-primary:hover {
    opacity: 0.9;
    transform: translateY(-2px);
    box-shadow: 0 4px 15px var(--glow-color);
}

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

.page-khuyen-mai__btn-secondary:hover {
    background-color: var(--primary-color);
    color: #ffffff;
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.page-khuyen-mai__btn-link {
    background: none;
    color: var(--primary-color);
    border: 1px solid var(--primary-color);
    padding: 10px 20px;
    font-size: 1em;
}

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

/* Promo Categories Section */
.page-khuyen-mai__promo-categories {
    background-color: var(--card-bg-color);
}

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

.page-khuyen-mai__category-card {
    background-color: var(--card-bg-color);
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
    padding: 25px;
    text-align: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border: 1px solid var(--border-color);
}

.page-khuyen-mai__category-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
}

.page-khuyen-mai__category-image {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    margin-bottom: 20px;
    display: block;
}

.page-khuyen-mai__card-title {
    font-size: 1.6em;
    font-weight: 700;
    color: var(--text-dark-color);
    margin-bottom: 15px;
}

.page-khuyen-mai__card-text {
    font-size: 1em;
    color: var(--text-main-color);
    margin-bottom: 20px;
}

/* Detailed Promos Section */
.page-khuyen-mai__dark-bg {
    background-color: var(--primary-color);
    color: #ffffff; /* Light text for dark background */
}

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

.page-khuyen-mai__promo-list {
    display: flex;
    flex-direction: column;
    gap: 40px;
    margin-top: 40px;
}

.page-khuyen-mai__promo-item {
    display: flex;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s ease;
}

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

.page-khuyen-mai__promo-image {
    width: 45%;
    height: auto;
    object-fit: cover;
    display: block;
}

.page-khuyen-mai__promo-content {
    flex: 1;
    padding: 30px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.page-khuyen-mai__promo-title {
    font-size: 1.8em;
    font-weight: 700;
    margin-bottom: 10px;
}

.page-khuyen-mai__promo-meta {
    font-size: 0.9em;
    opacity: 0.8;
    margin-bottom: 15px;
}

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

/* How to Claim Section */
.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: var(--card-bg-color);
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
    padding: 25px;
    text-align: center;
    border: 1px solid var(--border-color);
}

.page-khuyen-mai__step-image {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    margin: 0 auto 20px;
    display: block;
}

.page-khuyen-mai__step-title {
    font-size: 1.5em;
    font-weight: 700;
    color: var(--text-dark-color);
    margin-bottom: 10px;
}

.page-khuyen-mai__step-text {
    font-size: 1em;
    color: var(--text-main-color);
}

/* FAQ Section */
.page-khuyen-mai__faq-list {
    margin-top: 40px;
}

.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;
    transition: all 0.3s ease;
}

.page-khuyen-mai__faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px;
    font-size: 1.2em;
    font-weight: 600;
    color: var(--text-dark-color);
    cursor: pointer;
    background-color: #f9f9f9;
    border-bottom: 1px solid var(--border-color);
    list-style: none;
}

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

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

.page-khuyen-mai__faq-toggle {
    font-size: 1.5em;
    font-weight: bold;
    color: var(--primary-color);
    margin-left: 15px;
}

.page-khuyen-mai__faq-item[open] .page-khuyen-mai__faq-question {
    background-color: var(--primary-color);
    color: #ffffff;
    border-bottom-color: transparent;
}

.page-khuyen-mai__faq-item[open] .page-khuyen-mai__faq-toggle {
    color: #ffffff;
}

.page-khuyen-mai__faq-answer {
    padding: 20px;
    font-size: 1em;
    color: var(--text-main-color);
    border-top: 1px solid var(--border-color);
}

.page-khuyen-mai__faq-item[open] .page-khuyen-mai__faq-answer {
    border-top-color: transparent;
}

/* CTA Bottom Section */
.page-khuyen-mai__cta-bottom-section {
    background-color: var(--background-color);
    text-align: center;
    padding: 80px 0;
}

.page-khuyen-mai__cta-bottom-content {
    max-width: 800px;
}

.page-khuyen-mai__cta-bottom-title {
    font-size: 2.8em;
    font-weight: 700;
    color: var(--text-dark-color);
    margin-bottom: 20px;
}

.page-khuyen-mai__cta-bottom-description {
    font-size: 1.2em;
    color: var(--text-main-color);
    margin-bottom: 40px;
}

.page-khuyen-mai__cta-bottom-buttons {
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
}

/* General Image Styling */
.page-khuyen-mai img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* Responsive Styles */
@media (max-width: 1024px) {
    .page-khuyen-mai__hero-title {
        font-size: 3em;
    }

    .page-khuyen-mai__section-title {
        font-size: 2.5em;
    }

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

    .page-khuyen-mai__promo-image {
        width: 100%;
        height: 300px;
    }

    .page-khuyen-mai__promo-content {
        padding: 25px;
    }
}

@media (max-width: 768px) {
    .page-khuyen-mai {
        font-size: 15px;
        line-height: 1.5;
    }

    .page-khuyen-mai__section {
        padding: 40px 0;
    }

    .page-khuyen-mai__container {
        padding: 0 15px !important;
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
    }

    /* HERO Section */
    .page-khuyen-mai__hero-section {
        padding-top: 10px !important;
        padding-bottom: 40px !important;
    }

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

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

    .page-khuyen-mai__hero-title {
        font-size: 2.2em;
        margin-bottom: 15px;
    }

    .page-khuyen-mai__hero-description {
        font-size: 1em;
        margin-bottom: 25px;
    }

    .page-khuyen-mai__hero-cta-buttons {
        flex-direction: column;
        gap: 15px;
    }

    .page-khuyen-mai__hero-image {
        min-width: unset;
    }

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

    .page-khuyen-mai__section-description {
        font-size: 0.95em;
        margin-bottom: 30px;
    }

    /* Buttons */
    .page-khuyen-mai__btn-primary,
    .page-khuyen-mai__btn-secondary,
    .page-khuyen-mai__btn-link {
        max-width: 100% !important;
        width: 100% !important;
        padding: 12px 20px;
        font-size: 1em;
        white-space: normal !important;
        word-wrap: break-word !important;
    }

    .page-khuyen-mai__hero-cta-buttons,
    .page-khuyen-mai__cta-bottom-buttons {
        flex-direction: column !important;
        gap: 15px !important;
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
    }

    /* Promo Categories */
    .page-khuyen-mai__category-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .page-khuyen-mai__category-card {
        padding: 20px;
    }

    .page-khuyen-mai__card-title {
        font-size: 1.4em;
    }

    /* Detailed Promos */
    .page-khuyen-mai__promo-list {
        gap: 30px;
    }

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

    .page-khuyen-mai__promo-image {
        width: 100%;
        height: 200px; /* Smaller height for mobile */
    }

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

    .page-khuyen-mai__promo-title {
        font-size: 1.6em;
    }

    /* How to Claim */
    .page-khuyen-mai__steps-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

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

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

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

    .page-khuyen-mai__faq-toggle {
        font-size: 1.3em;
    }

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

    /* CTA Bottom */
    .page-khuyen-mai__cta-bottom-section {
        padding: 50px 0;
    }

    .page-khuyen-mai__cta-bottom-title {
        font-size: 2em;
    }

    .page-khuyen-mai__cta-bottom-description {
        font-size: 1em;
    }

    /* General Images */
    .page-khuyen-mai img {
        max-width: 100% !important;
        width: 100% !important;
        height: auto !important;
    }
}