/* style/khuyen-mai.css */

:root {
    --primary-color: #C61F1F;
    --secondary-color: #E53030;
    --button-gradient: linear-gradient(180deg, #FFB04A 0%, #D86A14 100%);
    --card-bg: #2A1212;
    --main-bg: #140C0C;
    --text-main: #FFF1E8;
    --border-color: #6A1E1E;
    --gold-color: #F3C54D;
    --deep-red-color: #7E0D0D;
}

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

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

.page-khuyen-mai__section-title {
    font-size: 2.5em;
    font-weight: bold;
    color: var(--gold-color);
    text-align: center;
    margin-bottom: 20px;
    line-height: 1.2;
}

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

.page-khuyen-mai__text-main {
    color: var(--text-main);
}

.page-khuyen-mai__dark-bg {
    background-color: var(--deep-red-color);
    color: var(--text-main);
}

/* Hero Section */
.page-khuyen-mai__hero-section {
    padding-top: 10px; /* Small top padding, relies on body padding-top from shared.css */
    padding-bottom: 60px;
    background-color: var(--main-bg);
    color: var(--text-main);
}

.page-khuyen-mai__hero-content-wrapper {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: center;
    gap: 40px;
    max-width: 1170px;
    margin: 0 auto;
    padding: 40px 16px;
}

.page-khuyen-mai__hero-text-block {
    flex: 1 1 50%;
    min-width: 300px;
    text-align: left;
}

.page-khuyen-mai__main-title {
    font-size: clamp(2em, 4vw, 3.5em);
    font-weight: bold;
    color: var(--gold-color);
    margin-bottom: 20px;
    line-height: 1.2;
}

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

.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: 15px 30px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: bold;
    font-size: 1.1em;
    transition: all 0.3s ease;
    text-align: center;
    box-sizing: border-box;
    white-space: normal;
    word-wrap: break-word;
}

.page-khuyen-mai__btn-primary {
    background: var(--button-gradient);
    color: #ffffff;
    border: none;
}

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

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

.page-khuyen-mai__btn-secondary:hover {
    background-color: var(--gold-color);
    color: var(--main-bg);
    transform: translateY(-2px);
}

.page-khuyen-mai__hero-image-block {
    flex: 1 1 40%;
    min-width: 300px;
    text-align: center;
}

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

/* Intro Section - Promo Categories */
.page-khuyen-mai__intro-section {
    padding: 60px 0;
    background-color: var(--card-bg);
}

.page-khuyen-mai__promo-categories {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 30px;
}

.page-khuyen-mai__category-card {
    flex: 1 1 300px;
    max-width: 350px;
    background-color: var(--deep-red-color);
    border-radius: 10px;
    padding: 30px;
    text-align: center;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
    transition: transform 0.3s ease;
    box-sizing: border-box;
    color: var(--text-main);
}

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

.page-khuyen-mai__icon-box-media {
    width: 160px;
    height: 160px;
    margin: 0 auto 20px;
    border-radius: 50%;
    overflow: hidden;
    border: 3px solid var(--gold-color);
    display: flex;
    align-items: center;
    justify-content: center;
}

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

.page-khuyen-mai__category-title {
    font-size: 1.5em;
    color: var(--gold-color);
    margin-bottom: 15px;
}

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

.page-khuyen-mai__btn-text {
    color: var(--gold-color);
    text-decoration: none;
    font-weight: bold;
    transition: color 0.3s ease;
}

.page-khuyen-mai__btn-text:hover {
    color: #ffffff;
}

/* Promotion List Section */
.page-khuyen-mai__promo-list-section {
    padding: 60px 0;
    background-color: var(--main-bg);
}

.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);
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
    transition: transform 0.3s ease;
    display: flex;
    flex-direction: column;
    color: var(--text-main);
}

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

.page-khuyen-mai__promo-image {
    width: 100%;
    height: 200px; /* Fixed height for consistency */
    object-fit: cover;
    display: block;
}

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

.page-khuyen-mai__promo-title {
    font-size: 1.4em;
    color: var(--gold-color);
    margin-bottom: 10px;
    line-height: 1.3;
}

.page-khuyen-mai__promo-description {
    font-size: 0.95em;
    color: var(--text-main);
    margin-bottom: 15px;
    flex-grow: 1;
}

.page-khuyen-mai__promo-date {
    font-size: 0.85em;
    color: #aaa;
    margin-bottom: 20px;
    display: block;
}

.page-khuyen-mai__btn-small {
    padding: 10px 20px;
    font-size: 0.9em;
    width: fit-content;
    margin-top: auto; /* Pushes button to bottom */
}

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

.page-khuyen-mai__guide-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.page-khuyen-mai__step-item {
    background-color: var(--deep-red-color);
    border-radius: 10px;
    padding: 30px;
    text-align: center;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
    color: var(--text-main);
    box-sizing: border-box;
}

.page-khuyen-mai__step-number {
    display: inline-block;
    width: 50px;
    height: 50px;
    line-height: 50px;
    border-radius: 50%;
    background: var(--button-gradient);
    color: #ffffff;
    font-size: 1.8em;
    font-weight: bold;
    margin-bottom: 20px;
}

.page-khuyen-mai__step-title {
    font-size: 1.4em;
    color: var(--gold-color);
    margin-bottom: 10px;
}

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

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

.page-khuyen-mai__faq-list {
    max-width: 900px;
    margin: 40px auto 0 auto;
}

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

.page-khuyen-mai__faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 25px;
    cursor: pointer;
    font-size: 1.2em;
    font-weight: bold;
    color: var(--gold-color);
    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: 1.5em;
    margin-left: 20px;
    color: var(--text-main);
}

.page-khuyen-mai__faq-answer {
    padding: 0 25px 20px 25px;
    font-size: 1em;
    color: var(--text-main);
    line-height: 1.5;
}

/* CTA Bottom Section */
.page-khuyen-mai__cta-bottom-section {
    padding: 60px 0;
    background-color: var(--deep-red-color);
    text-align: center;
}

.page-khuyen-mai__cta-bottom-section .page-khuyen-mai__container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
}

.page-khuyen-mai__cta-bottom-section .page-khuyen-mai__section-title,
.page-khuyen-mai__cta-bottom-section .page-khuyen-mai__section-description {
    color: var(--text-main);
}

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

    .page-khuyen-mai__hero-text-block {
        text-align: center;
    }

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

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

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

    .page-khuyen-mai__guide-steps {
        grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    }
}

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

    .page-khuyen-mai__container {
        padding: 15px;
    }

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

    .page-khuyen-mai__section-description {
        font-size: 1em;
        margin-bottom: 30px;
    }

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

    .page-khuyen-mai__main-title {
        font-size: clamp(1.8em, 6vw, 2.5em);
        margin-bottom: 15px;
    }

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

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

    .page-khuyen-mai__btn-primary,
    .page-khuyen-mai__btn-secondary {
        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-image-block {
        width: 100%;
    }

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

    /* Intro Section - Promo Categories */
    .page-khuyen-mai__intro-section {
        padding: 40px 0;
    }

    .page-khuyen-mai__promo-categories {
        gap: 20px;
        flex-direction: column;
        align-items: center;
    }

    .page-khuyen-mai__category-card {
        max-width: 100%;
        width: 100%;
        padding: 20px;
    }

    .page-khuyen-mai__icon-box-media {
        width: 120px;
        height: 120px;
        margin-bottom: 15px;
    }

    /* Promo List Section */
    .page-khuyen-mai__promo-list-section {
        padding: 40px 0;
    }

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

    .page-khuyen-mai__promo-card {
        max-width: 100%;
        width: 100%;
    }

    .page-khuyen-mai__promo-image {
        max-width: 100% !important;
        width: 100% !important;
        height: auto !important;
        height: 180px; /* Maintain a reasonable height, object-fit will handle aspect */
    }

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

    .page-khuyen-mai__promo-description {
        font-size: 0.9em;
    }

    .page-khuyen-mai__btn-small {
        max-width: 100% !important;
        width: 100% !important;
    }

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

    .page-khuyen-mai__guide-steps {
        grid-template-columns: 1fr;
        gap: 20px;
        margin-top: 30px;
    }

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

    .page-khuyen-mai__faq-list {
        margin-top: 30px;
    }

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

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

    /* CTA Bottom Section */
    .page-khuyen-mai__cta-bottom-section {
        padding: 40px 0;
    }

    .page-khuyen-mai__cta-bottom-section .page-khuyen-mai__btn-primary {
        max-width: 100% !important;
        width: 100% !important;
    }

    /* General image and container responsive rules */
    .page-khuyen-mai img {
        max-width: 100% !important;
        width: 100% !important;
        height: auto !important;
    }

    .page-khuyen-mai__section,
    .page-khuyen-mai__card,
    .page-khuyen-mai__container,
    .page-khuyen-mai__promo-card,
    .page-khuyen-mai__category-card,
    .page-khuyen-mai__guide-steps,
    .page-khuyen-mai__faq-list,
    .page-khuyen-mai__cta-buttons {
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
        padding-left: 15px;
        padding-right: 15px;
        overflow-x: hidden;
    }
    .page-khuyen-mai__cta-buttons {
        flex-wrap: wrap !important;
        gap: 10px;
    }
}