/* style/khuyen-mai.css */

:root {
    --color-primary: #11A84E;
    --color-secondary: #22C768;
    --color-text-main: #F2FFF6;
    --color-text-secondary: #A7D9B8;
    --color-bg-dark: #08160F;
    --color-card-bg: #11271B;
    --color-button-gradient-start: #2AD16F;
    --color-button-gradient-end: #13994A;
    --color-border: #2E7A4E;
    --color-glow: #57E38D;
    --color-gold: #F2C14E;
    --color-divider: #1E3A2A;
    --color-deep-green: #0A4B2C;
}

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

.page-khuyen-mai__container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

.page-khuyen-mai__hero-section {
    position: relative;
    width: 100%;
    padding-top: 10px; /* Small top padding, body handles --header-offset */
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    overflow: hidden;
    background-color: var(--color-bg-dark);
}

.page-khuyen-mai__hero-image-wrapper {
    width: 100%;
    height: auto;
    margin-bottom: 20px;
}

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

.page-khuyen-mai__hero-content {
    padding: 40px 20px;
    max-width: 900px;
    margin: 0 auto;
}

.page-khuyen-mai__main-title {
    font-size: clamp(2.5rem, 4vw, 3.5rem);
    color: var(--color-gold);
    margin-bottom: 20px;
    line-height: 1.2;
    font-weight: bold;
    text-shadow: 0 0 10px rgba(242, 193, 78, 0.5);
}

.page-khuyen-mai__hero-description {
    font-size: 1.25rem;
    color: var(--color-text-secondary);
    margin-bottom: 30px;
}

.page-khuyen-mai__hero-cta-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    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: 1.1rem;
    transition: all 0.3s ease;
    max-width: 100%;
    box-sizing: border-box;
    white-space: normal;
    word-wrap: break-word;
    text-align: center;
}

.page-khuyen-mai__btn-primary {
    background: linear-gradient(180deg, var(--color-button-gradient-start) 0%, var(--color-button-gradient-end) 100%);
    color: var(--color-text-main);
    border: 2px solid transparent;
    box-shadow: 0 5px 15px rgba(17, 168, 78, 0.4);
}

.page-khuyen-mai__btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(17, 168, 78, 0.6);
}

.page-khuyen-mai__btn-secondary {
    background-color: transparent;
    color: var(--color-primary);
    border: 2px solid var(--color-primary);
    box-shadow: 0 5px 15px rgba(17, 168, 78, 0.2);
}

.page-khuyen-mai__btn-secondary:hover {
    background-color: var(--color-primary);
    color: var(--color-text-main);
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(17, 168, 78, 0.6);
}

.page-khuyen-mai__intro-section,
.page-khuyen-mai__promotions-grid-section,
.page-khuyen-mai__guide-section,
.page-khuyen-mai__terms-section,
.page-khuyen-mai__why-choose-section,
.page-khuyen-mai__faq-section,
.page-khuyen-mai__call-to-action-section {
    padding: 60px 0;
    position: relative;
}

.page-khuyen-mai__intro-section {
    background-color: var(--color-card-bg);
    border-bottom: 1px solid var(--color-divider);
}

.page-khuyen-mai__section-title {
    font-size: 2.5rem;
    color: var(--color-gold);
    text-align: center;
    margin-bottom: 40px;
    position: relative;
    padding-bottom: 15px;
}

.page-khuyen-mai__section-title::after {
    content: '';
    position: absolute;
    left: 50%;
    bottom: 0;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background-color: var(--color-primary);
    border-radius: 2px;
}

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

.page-khuyen-mai__text-block {
    font-size: 1.1rem;
    color: var(--color-text-secondary);
    margin-bottom: 20px;
    text-align: justify;
}

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

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

.page-khuyen-mai__promo-card {
    background-color: var(--color-card-bg);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.3);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border: 1px solid var(--color-divider);
}

.page-khuyen-mai__promo-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 25px rgba(0, 0, 0, 0.5);
}

.page-khuyen-mai__promo-card-image {
    width: 100%;
    height: 220px;
    object-fit: cover;
    display: block;
}

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

.page-khuyen-mai__promo-card-title {
    font-size: 1.5rem;
    color: var(--color-primary);
    margin-bottom: 15px;
    line-height: 1.3;
}

.page-khuyen-mai__promo-card-text {
    font-size: 1rem;
    color: var(--color-text-secondary);
    margin-bottom: 20px;
}

.page-khuyen-mai__btn-link {
    display: inline-block;
    color: var(--color-gold);
    text-decoration: none;
    font-weight: bold;
    border-bottom: 2px solid var(--color-gold);
    padding-bottom: 5px;
    transition: color 0.3s ease, border-color 0.3s ease;
}

.page-khuyen-mai__btn-link:hover {
    color: var(--color-glow);
    border-color: var(--color-glow);
}

.page-khuyen-mai__guide-section {
    background-color: var(--color-card-bg);
    border-top: 1px solid var(--color-divider);
    border-bottom: 1px solid var(--color-divider);
}

.page-khuyen-mai__guide-content {
    display: flex;
    gap: 40px;
    align-items: center;
}

.page-khuyen-mai__guide-steps {
    flex: 1;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 25px;
}

.page-khuyen-mai__step-item {
    background-color: var(--color-bg-dark);
    padding: 25px;
    border-radius: 10px;
    border: 1px solid var(--color-border);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
    transition: transform 0.3s ease;
}

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

.page-khuyen-mai__step-number {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 45px;
    height: 45px;
    background: linear-gradient(180deg, var(--color-button-gradient-start) 0%, var(--color-button-gradient-end) 100%);
    color: var(--color-text-main);
    border-radius: 50%;
    font-size: 1.5rem;
    font-weight: bold;
    margin-bottom: 15px;
    box-shadow: 0 2px 10px rgba(17, 168, 78, 0.5);
}

.page-khuyen-mai__step-title {
    font-size: 1.3rem;
    color: var(--color-primary);
    margin-bottom: 10px;
}

.page-khuyen-mai__step-description {
    font-size: 0.95rem;
    color: var(--color-text-secondary);
}

.page-khuyen-mai__guide-image-wrapper {
    flex: 1;
    min-width: 400px;
}

.page-khuyen-mai__guide-image {
    width: 100%;
    height: auto;
    border-radius: 12px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
}

.page-khuyen-mai__cta-section {
    text-align: center;
    margin-top: 60px;
    padding-top: 40px;
    border-top: 1px solid var(--color-divider);
}

.page-khuyen-mai__cta-text {
    font-size: 1.3rem;
    color: var(--color-text-main);
    margin-bottom: 30px;
    font-weight: bold;
}

.page-khuyen-mai__terms-section {
    background-color: var(--color-bg-dark);
    border-bottom: 1px solid var(--color-divider);
}

.page-khuyen-mai__terms-section .page-khuyen-mai__btn-secondary {
    margin-top: 30px;
    display: inline-block;
}

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

.page-khuyen-mai__why-choose-item {
    background-color: var(--color-card-bg);
    padding: 30px;
    border-radius: 12px;
    border: 1px solid var(--color-border);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
    transition: transform 0.3s ease;
}

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

.page-khuyen-mai__item-title {
    font-size: 1.4rem;
    color: var(--color-gold);
    margin-bottom: 15px;
    position: relative;
    padding-left: 30px;
}

.page-khuyen-mai__item-title::before {
    content: '✅';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    font-size: 1.2rem;
}

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

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

.page-khuyen-mai__faq-item {
    background-color: var(--color-card-bg);
    margin-bottom: 15px;
    border-radius: 10px;
    border: 1px solid var(--color-border);
    overflow: hidden;
    transition: all 0.3s ease;
}

.page-khuyen-mai__faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 25px;
    cursor: pointer;
    font-size: 1.2rem;
    font-weight: bold;
    color: var(--color-primary);
    background-color: var(--color-card-bg);
    list-style: none;
    transition: background-color 0.3s ease;
}

.page-khuyen-mai__faq-item[open] .page-khuyen-mai__faq-question {
    background-color: var(--color-deep-green);
    color: var(--color-gold);
}

.page-khuyen-mai__faq-item[open] .page-khuyen-mai__faq-toggle {
    color: var(--color-gold);
}

.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;
    margin-left: 15px;
    color: var(--color-primary);
}

.page-khuyen-mai__faq-answer {
    padding: 15px 25px 25px;
    font-size: 1rem;
    color: var(--color-text-secondary);
    background-color: var(--color-bg-dark);
    border-top: 1px solid var(--color-divider);
}

.page-khuyen-mai__call-to-action-section {
    background-color: var(--color-deep-green);
    text-align: center;
    padding: 80px 0;
}

.page-khuyen-mai__call-to-action-section .page-khuyen-mai__section-title {
    color: var(--color-gold);
}

.page-khuyen-mai__call-to-action-section .page-khuyen-mai__text-block {
    max-width: 800px;
    margin: 0 auto 40px;
    color: var(--color-text-main);
}

.page-khuyen-mai__call-to-action-section .page-khuyen-mai__cta-buttons {
    margin-top: 0;
}

/* Responsive styles */
@media (max-width: 1024px) {
    .page-khuyen-mai__container {
        padding: 20px 30px;
    }

    .page-khuyen-mai__hero-content {
        padding: 30px 20px;
    }

    .page-khuyen-mai__main-title {
        font-size: clamp(2rem, 4vw, 3rem);
    }

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

    .page-khuyen-mai__guide-content {
        flex-direction: column;
        gap: 30px;
    }

    .page-khuyen-mai__guide-image-wrapper {
        min-width: unset;
        width: 100%;
    }
}

@media (max-width: 768px) {
    .page-khuyen-mai__container {
        padding: 15px;
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
    }

    .page-khuyen-mai__hero-section {
        padding-top: 10px !important;
    }

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

    .page-khuyen-mai__hero-content {
        padding: 20px 15px;
    }

    .page-khuyen-mai__main-title {
        font-size: clamp(1.8rem, 8vw, 2.5rem);
    }

    .page-khuyen-mai__hero-description {
        font-size: 1rem;
    }

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

    .page-khuyen-mai__btn-primary,
    .page-khuyen-mai__btn-secondary {
        padding: 12px 20px;
        font-size: 1rem;
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
        white-space: normal !important;
        word-wrap: break-word !important;
    }

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

    .page-khuyen-mai__intro-section .page-khuyen-mai__section-title {
        font-size: 2rem;
        margin-bottom: 30px;
    }

    .page-khuyen-mai__intro-section .page-khuyen-mai__text-block {
        font-size: 1rem;
        padding: 0 15px;
    }

    /* Promotions Grid */
    .page-khuyen-mai__promotions-grid-section {
        padding: 40px 0;
    }

    .page-khuyen-mai__promotions-grid {
        grid-template-columns: 1fr;
        gap: 25px;
    }

    .page-khuyen-mai__promo-card-image {
        height: 180px;
        max-width: 100% !important;
        width: 100% !important;
        height: auto !important;
    }

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

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

    .page-khuyen-mai__promo-card-text {
        font-size: 0.95rem;
    }

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

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

    .page-khuyen-mai__guide-image-wrapper {
        padding: 0 15px;
    }

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

    .page-khuyen-mai__cta-section {
        margin-top: 40px;
        padding-top: 30px;
    }

    .page-khuyen-mai__cta-text {
        font-size: 1.1rem;
    }

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

    .page-khuyen-mai__terms-section .page-khuyen-mai__section-title {
        font-size: 2rem;
    }

    .page-khuyen-mai__terms-section .page-khuyen-mai__text-block {
        padding: 0 15px;
    }

    /* Why Choose Section */
    .page-khuyen-mai__why-choose-section {
        padding: 40px 0;
    }

    .page-khuyen-mai__why-choose-grid {
        grid-template-columns: 1fr;
        gap: 25px;
    }

    .page-khuyen-mai__why-choose-item {
        padding: 25px;
    }

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

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

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

    .page-khuyen-mai__faq-question {
        font-size: 1.05rem;
        padding: 15px 20px;
    }

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

    .page-khuyen-mai__faq-answer {
        padding: 10px 20px 20px;
        font-size: 0.95rem;
    }

    /* Call to Action Section */
    .page-khuyen-mai__call-to-action-section {
        padding: 50px 0;
    }

    .page-khuyen-mai__call-to-action-section .page-khuyen-mai__section-title {
        font-size: 2rem;
    }

    .page-khuyen-mai__call-to-action-section .page-khuyen-mai__text-block {
        padding: 0 15px;
        margin-bottom: 30px;
    }

    .page-khuyen-mai__call-to-action-section .page-khuyen-mai__cta-buttons {
        flex-direction: column;
        gap: 15px;
    }

    /* General image and container rules for mobile */
    .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 {
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
        padding-left: 15px;
        padding-right: 15px;
    }
}

@media (max-width: 549px) {
    .page-khuyen-mai__promotions-grid {
        grid-template-columns: 1fr;
    }
    .page-khuyen-mai__why-choose-grid {
        grid-template-columns: 1fr;
    }
    .page-khuyen-mai__guide-steps {
        grid-template-columns: 1fr;
    }
}