/* style/khuyen-mai.css */
:root {
    --primary-color: #26A9E0;
    --secondary-color: #FFFFFF;
    --text-color-dark: #333333;
    --text-color-light: #ffffff;
    --button-login-color: #EA7C07;
    --background-color: #FFFFFF;
    --black-color: #000000;
}

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

.page-khuyen-mai__container {
    max-width: 1170px;
    margin: 0 auto;
    padding: 20px 16px;
    box-sizing: border-box;
}

/* Hero Section */
.page-khuyen-mai__hero-section {
    padding-top: 10px; /* Small top padding, main padding from body in shared.css */
    padding-bottom: 60px;
    background: linear-gradient(135deg, var(--primary-color) 0%, #34C6EB 100%);
    color: var(--text-color-light);
}

.page-khuyen-mai__hero-container {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 40px;
    padding: 40px 16px;
}

.page-khuyen-mai__hero-content {
    flex: 1 1 45%;
    min-width: 300px;
    text-align: left;
}

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

.page-khuyen-mai__hero-description {
    font-size: 1.1rem;
    margin-bottom: 30px;
    max-width: 600px;
}

.page-khuyen-mai__hero-image {
    flex: 1 1 45%;
    min-width: 300px;
    text-align: center;
}

.page-khuyen-mai__hero-image img {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
    display: block;
    margin: 0 auto;
}

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

.page-khuyen-mai__btn-primary,
.page-khuyen-mai__btn-secondary {
    display: inline-block;
    padding: 14px 28px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    font-size: 1rem;
    transition: all 0.3s ease;
    text-align: center;
    box-sizing: border-box;
    max-width: 100%;
    white-space: normal;
    word-wrap: break-word;
}

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

.page-khuyen-mai__btn-primary:hover {
    background: #e06c00;
    border-color: #e06c00;
    transform: translateY(-2px);
}

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

.page-khuyen-mai__btn-secondary:hover {
    background: var(--text-color-light);
    color: var(--primary-color);
    transform: translateY(-2px);
}

/* General Section Styles */
.page-khuyen-mai__section-title {
    font-size: clamp(1.8rem, 3vw, 2.8rem);
    font-weight: 700;
    text-align: center;
    margin-bottom: 20px;
    color: var(--primary-color);
}

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

.page-khuyen-mai__dark-bg .page-khuyen-mai__section-title,
.page-khuyen-mai__dark-bg .page-khuyen-mai__section-description {
    color: var(--text-color-light);
}

/* Intro Section (Feature Grid) */
.page-khuyen-mai__intro-section {
    padding: 60px 0;
    background: var(--background-color);
}

.page-khuyen-mai__feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    text-align: center;
}

.page-khuyen-mai__feature-item {
    background: var(--secondary-color);
    padding: 30px;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s ease;
}

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

.page-khuyen-mai__icon-box-media {
    width: 200px;
    height: 200px;
    aspect-ratio: 1 / 1;
    margin: 0 auto 20px;
    border-radius: 50%;
    overflow: hidden;
    border: 5px solid var(--primary-color);
}

.page-khuyen-mai__icon-box-media img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 50%;
    display: block;
}

.page-khuyen-mai__feature-title {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 15px;
    color: var(--primary-color);
}

.page-khuyen-mai__feature-text {
    font-size: 1rem;
    color: var(--text-color-dark);
}

/* Promo Section (Promo Cards) */
.page-khuyen-mai__promo-section {
    padding: 60px 0;
    background: var(--primary-color);
}

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

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

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

.page-khuyen-mai__promo-card img {
    width: 100%;
    height: 250px;
    object-fit: cover;
    display: block;
}

.page-khuyen-mai__card-content {
    padding: 25px;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.page-khuyen-mai__card-title {
    font-size: 1.4rem;
    font-weight: 600;
    margin-bottom: 10px;
    color: var(--primary-color);
}

.page-khuyen-mai__card-text {
    font-size: 1rem;
    color: var(--text-color-dark);
    margin-bottom: 20px;
    flex-grow: 1;
}

.page-khuyen-mai__promo-card .page-khuyen-mai__btn-primary {
    width: fit-content;
    margin-top: auto;
    align-self: flex-start;
    background: var(--primary-color);
    border-color: var(--primary-color);
}

.page-khuyen-mai__promo-card .page-khuyen-mai__btn-primary:hover {
    background: #1e87bb;
    border-color: #1e87bb;
}

/* Guide Section (Steps) */
.page-khuyen-mai__guide-section {
    padding: 60px 0;
    background: var(--background-color);
}

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

.page-khuyen-mai__step-item {
    background: var(--secondary-color);
    padding: 30px;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.page-khuyen-mai__step-icon {
    width: 60px;
    height: 60px;
    background: var(--primary-color);
    color: var(--text-color-light);
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 20px;
    box-shadow: 0 4px 15px rgba(38, 169, 224, 0.4);
}

.page-khuyen-mai__step-title {
    font-size: 1.4rem;
    font-weight: 600;
    margin-bottom: 10px;
    color: var(--primary-color);
}

.page-khuyen-mai__step-text {
    font-size: 1rem;
    color: var(--text-color-dark);
    flex-grow: 1;
    margin-bottom: 15px;
}

.page-khuyen-mai__btn-text-link {
    color: var(--button-login-color);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.95rem;
    transition: color 0.3s ease;
    margin-top: auto;
}

.page-khuyen-mai__btn-text-link:hover {
    color: #e06c00;
    text-decoration: underline;
}

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

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

.page-khuyen-mai__faq-item {
    background: var(--secondary-color);
    border: 1px solid #e0e0e0;
    border-radius: 8px;
    margin-bottom: 15px;
    overflow: hidden;
}

.page-khuyen-mai__faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 25px;
    font-size: 1.15rem;
    font-weight: 600;
    color: var(--primary-color);
    cursor: pointer;
    background: #f9f9f9;
    border-bottom: 1px solid #e0e0e0;
    list-style: none; /* For details/summary */
}

.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: 1.8rem;
    line-height: 1;
    width: 30px;
    text-align: center;
    color: var(--button-login-color);
}

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

.page-khuyen-mai__faq-answer {
    padding: 15px 25px 20px;
    font-size: 1rem;
    color: var(--text-color-dark);
    border-top: 1px solid #eee;
}

.page-khuyen-mai__faq-item:not([open]) .page-khuyen-mai__faq-answer {
    border-top: none;
}

/* CTA Bottom Section */
.page-khuyen-mai__cta-bottom {
    padding: 80px 0;
    text-align: center;
    background: linear-gradient(135deg, var(--primary-color) 0%, #1e87bb 100%);
    color: var(--text-color-light);
}

.page-khuyen-mai__cta-bottom .page-khuyen-mai__section-title {
    color: var(--text-color-light);
}

.page-khuyen-mai__cta-bottom .page-khuyen-mai__section-description {
    color: var(--text-color-light);
    margin-bottom: 50px;
}

.page-khuyen-mai__cta-bottom .page-khuyen-mai__cta-buttons {
    justify-content: center;
}

/* --- Responsive Styles --- */

/* Mobile specific styles */
@media (max-width: 768px) {
    .page-khuyen-mai__container {
        padding: 15px;
    }

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

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

    .page-khuyen-mai__hero-content {
        flex: 1 1 100%;
        text-align: center;
    }

    .page-khuyen-mai__main-title {
        font-size: 2rem !important;
        margin-bottom: 15px;
    }

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

    .page-khuyen-mai__hero-image {
        flex: 1 1 100%;
    }

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

    .page-khuyen-mai__btn-primary,
    .page-khuyen-mai__btn-secondary {
        width: 100% !important;
        max-width: 100% !important;
        padding: 12px 20px;
        font-size: 0.95rem;
        white-space: normal !important;
        word-wrap: break-word !important;
        box-sizing: border-box !important;
    }

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

    .page-khuyen-mai__section-description {
        font-size: 0.95rem;
        margin-bottom: 30px;
        padding: 0 10px;
    }

    /* Intro Section (Feature Grid) */
    .page-khuyen-mai__intro-section {
        padding: 40px 0;
    }

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

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

    .page-khuyen-mai__icon-box-media {
        width: 150px !important;
        height: 150px !important;
        margin-bottom: 15px;
        border-width: 3px;
    }

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

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

    /* Promo Section (Promo Cards) */
    .page-khuyen-mai__promo-section {
        padding: 40px 0;
    }

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

    .page-khuyen-mai__promo-card img {
        height: 200px;
    }

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

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

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

    /* Guide Section (Steps) */
    .page-khuyen-mai__guide-section {
        padding: 40px 0;
    }

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

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

    .page-khuyen-mai__step-icon {
        width: 50px;
        height: 50px;
        font-size: 1.5rem;
        margin-bottom: 15px;
    }

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

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

    .page-khuyen-mai__btn-text-link {
        font-size: 0.85rem;
    }

    /* FAQ Section */
    .page-khuyen-mai__faq-section {
        padding: 40px 0;
    }

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

    .page-khuyen-mai__faq-toggle {
        font-size: 1.5rem;
        width: 25px;
    }

    .page-khuyen-mai__faq-answer {
        padding: 10px 20px 15px;
        font-size: 0.9rem;
    }

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

    .page-khuyen-mai__cta-bottom .page-khuyen-mai__section-description {
        margin-bottom: 30px;
    }

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

    .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;
    }

    .page-khuyen-mai__cta-buttons {
        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__cta-buttons a {
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
        white-space: normal !important;
        word-wrap: break-word !important;
    }
}