/* style/khuyn-mi.css */

/* Biến CSS */
:root {
    --page-khuyn-mi-primary-color: #0A246A;
    --page-khuyn-mi-secondary-color: #FFD700;
    --page-khuyn-mi-text-light: #FFFFFF;
    --page-khuyn-mi-text-dark: #333333;
    --page-khuyn-mi-bg-light: #F8F9FA;
    --page-khuyn-mi-bg-dark: #071A49;
    --page-khuyn-mi-border-color: #E0E0E0;
    --page-khuyn-mi-shadow: rgba(0, 0, 0, 0.1);
}

.page-khuyn-mi {
    font-family: 'Arial', sans-serif;
    line-height: 1.6;
    color: var(--page-khuyn-mi-text-dark);
    background-color: var(--page-khuyn-mi-bg-light);
}

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

.page-khuyn-mi__section {
    padding: 60px 0;
    text-align: center;
}

.page-khuyn-mi__section--why-mb666,
.page-khuyn-mi__section--promotion-types,
.page-khuyn-mi__section--how-to-claim,
.page-khuyn-mi__section--mb666-advantage,
.page-khuyn-mi__section--faq {
    background-color: var(--page-khuyn-mi-bg-light);
}

.page-khuyn-mi__section--terms,
.page-khuyn-mi__section--final-cta {
    background-color: var(--page-khuyn-mi-bg-dark);
    color: var(--page-khuyn-mi-text-light);
}

.page-khuyn-mi__section-title {
    font-size: 2.5em;
    margin-bottom: 20px;
    color: var(--page-khuyn-mi-primary-color);
    font-weight: bold;
}

.page-khuyn-mi__section--terms .page-khuyn-mi__section-title,
.page-khuyn-mi__section--final-cta .page-khuyn-mi__section-title {
    color: var(--page-khuyn-mi-secondary-color);
}

.page-khuyn-mi__section-intro {
    font-size: 1.1em;
    margin-bottom: 40px;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
    color: #555;
}

.page-khuyn-mi__section--terms .page-khuyn-mi__section-intro,
.page-khuyn-mi__section--final-cta .page-khuyn-mi__section-intro {
    color: var(--page-khuyn-mi-text-light);
}

.page-khuyn-mi__hero {
    background: linear-gradient(135deg, var(--page-khuyn-mi-primary-color) 0%, #0A246A 50%, var(--page-khuyn-mi-secondary-color) 100%);
    padding: 80px 0 40px;
    color: var(--page-khuyn-mi-text-light);
    position: relative;
    overflow: hidden;
}

.page-khuyn-mi__hero-title {
    font-size: 3.5em;
    margin-bottom: 20px;
    line-height: 1.2;
    font-weight: bold;
    color: var(--page-khuyn-mi-text-light);
}

.page-khuyn-mi__hero-description {
    font-size: 1.3em;
    margin-bottom: 30px;
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
}

.page-khuyn-mi__hero-cta-text {
    font-size: 1.2em;
    margin-bottom: 40px;
    font-weight: bold;
}

.page-khuyn-mi__hero-buttons {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-bottom: 40px;
}

.page-khuyn-mi__btn {
    display: inline-block;
    padding: 15px 30px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: bold;
    transition: all 0.3s ease;
    white-space: nowrap;
    cursor: pointer;
    border: none;
    font-size: 1.1em;
}

.page-khuyn-mi__btn--primary {
    background-color: var(--page-khuyn-mi-secondary-color);
    color: var(--page-khuyn-mi-primary-color);
}

.page-khuyn-mi__btn--primary:hover {
    background-color: #E6C200;
    transform: translateY(-3px);
    box-shadow: 0 8px 15px var(--page-khuyn-mi-shadow);
}

.page-khuyn-mi__btn--secondary {
    background-color: transparent;
    color: var(--page-khuyn-mi-secondary-color);
    border: 2px solid var(--page-khuyn-mi-secondary-color);
}

.page-khuyn-mi__btn--secondary:hover {
    background-color: var(--page-khuyn-mi-secondary-color);
    color: var(--page-khuyn-mi-primary-color);
    transform: translateY(-3px);
    box-shadow: 0 8px 15px var(--page-khuyn-mi-shadow);
}

.page-khuyn-mi__btn--link {
    background-color: transparent;
    color: var(--page-khuyn-mi-primary-color);
    border: 2px solid var(--page-khuyn-mi-primary-color);
    padding: 10px 20px;
    font-size: 1em;
    border-radius: 5px;
}

.page-khuyn-mi__btn--link:hover {
    background-color: var(--page-khuyn-mi-primary-color);
    color: var(--page-khuyn-mi-text-light);
    transform: none;
    box-shadow: none;
}

.page-khuyn-mi__btn--large {
    padding: 18px 40px;
    font-size: 1.3em;
}

.page-khuyn-mi__hero-image {
    max-width: 100%;
    height: auto;
    margin-top: 40px;
    border-radius: 10px;
    box-shadow: 0 10px 20px var(--page-khuyn-mi-shadow);
}

.page-khuyn-mi__features-grid,
.page-khuyn-mi__advantage-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.page-khuyn-mi__feature-item,
.page-khuyn-mi__advantage-item {
    background-color: var(--page-khuyn-mi-text-light);
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 5px 15px var(--page-khuyn-mi-shadow);
    text-align: center;
    transition: transform 0.3s ease;
}

.page-khuyn-mi__feature-item:hover,
.page-khuyn-mi__advantage-item:hover {
    transform: translateY(-5px);
}

.page-khuyn-mi__feature-icon,
.page-khuyn-mi__advantage-icon {
    width: 60px;
    height: 60px;
    margin-bottom: 20px;
    object-fit: contain;
}

.page-khuyn-mi__feature-title,
.page-khuyn-mi__advantage-title {
    font-size: 1.5em;
    color: var(--page-khuyn-mi-primary-color);
    margin-bottom: 15px;
}

.page-khuyn-mi__feature-description,
.page-khuyn-mi__advantage-description {
    font-size: 1em;
    color: #666;
}

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

.page-khuyn-mi__promo-card {
    background-color: var(--page-khuyn-mi-text-light);
    border-radius: 10px;
    box-shadow: 0 5px 15px var(--page-khuyn-mi-shadow);
    overflow: hidden;
    text-align: left;
    transition: transform 0.3s ease;
}

.page-khuyn-mi__promo-card:hover {
    transform: translateY(-5px);
}

.page-khuyn-mi__promo-card-image {
    width: 100%;
    height: 200px;
    object-fit: cover;
    display: block;
}

.page-khuyn-mi__promo-card-content {
    padding: 25px;
}

.page-khuyn-mi__promo-card-title {
    font-size: 1.6em;
    color: var(--page-khuyn-mi-primary-color);
    margin-bottom: 10px;
}

.page-khuyn-mi__promo-card-description {
    font-size: 0.95em;
    color: #666;
    margin-bottom: 20px;
}

.page-khuyn-mi__steps-list {
    list-style: none;
    padding: 0;
    margin: 0;
    text-align: left;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.page-khuyn-mi__step-item {
    display: flex;
    align-items: flex-start;
    margin-bottom: 30px;
    gap: 20px;
}

.page-khuyn-mi__step-number {
    background-color: var(--page-khuyn-mi-primary-color);
    color: var(--page-khuyn-mi-text-light);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 1.5em;
    font-weight: bold;
    flex-shrink: 0;
}

.page-khuyn-mi__step-content {
    flex-grow: 1;
}

.page-khuyn-mi__step-title {
    font-size: 1.4em;
    color: var(--page-khuyn-mi-primary-color);
    margin-bottom: 5px;
}

.page-khuyn-mi__step-description {
    color: #555;
    font-size: 1em;
}

.page-khuyn-mi__cta-bottom {
    margin-top: 50px;
}

.page-khuyn-mi__list {
    list-style: disc;
    text-align: left;
    max-width: 800px;
    margin: 0 auto 40px;
    padding-left: 20px;
    color: var(--page-khuyn-mi-text-light);
}

.page-khuyn-mi__list li {
    margin-bottom: 10px;
    font-size: 1.1em;
}

.page-khuyn-mi__section-outro {
    font-size: 1em;
    color: var(--page-khuyn-mi-text-light);
    margin-top: 30px;
}

.page-khuyn-mi__faq-accordion {
    max-width: 800px;
    margin: 40px auto 0;
    text-align: left;
}

.page-khuyn-mi__accordion-item {
    background-color: var(--page-khuyn-mi-text-light);
    margin-bottom: 15px;
    border-radius: 8px;
    box-shadow: 0 2px 10px var(--page-khuyn-mi-shadow);
    overflow: hidden;
}

.page-khuyn-mi__accordion-header {
    width: 100%;
    background-color: var(--page-khuyn-mi-primary-color);
    color: var(--page-khuyn-mi-text-light);
    padding: 18px 25px;
    border: none;
    text-align: left;
    font-size: 1.2em;
    font-weight: bold;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: background-color 0.3s ease;
}

.page-khuyn-mi__accordion-header:hover {
    background-color: #081B5A;
}

.page-khuyn-mi__accordion-header::after {
    content: '+';
    font-size: 1.5em;
    transition: transform 0.3s ease;
}

.page-khuyn-mi__accordion-header.active::after {
    content: '-';
    transform: rotate(180deg);
}

.page-khuyn-mi__accordion-content {
    padding: 0 25px;
    background-color: var(--page-khuyn-mi-text-light);
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease-out, padding 0.4s ease-out;
}

.page-khuyn-mi__accordion-content p {
    padding: 15px 0;
    color: #555;
    font-size: 1em;
    margin: 0;
}

.page-khuyn-mi__section--final-cta .page-khuyn-mi__container--center {
    text-align: center;
}

.page-khuyn-mi__small-text {
    font-size: 0.9em;
    margin-top: 20px;
    color: var(--page-khuyn-mi-text-light);
}

.page-khuyn-mi__link {
    color: var(--page-khuyn-mi-secondary-color);
    text-decoration: underline;
    transition: color 0.3s ease;
}

.page-khuyn-mi__link:hover {
    color: #E6C200;
}

.text-primary {
    color: var(--page-khuyn-mi-primary-color);
}

.text-accent {
    color: var(--page-khuyn-mi-secondary-color);
}

/* Responsive Design */
@media (max-width: 992px) {
    .page-khuyn-mi__hero-title {
        font-size: 2.8em;
    }
    .page-khuyn-mi__section-title {
        font-size: 2em;
    }
    .page-khuyn-mi__promo-card-grid {
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    }
}

@media (max-width: 768px) {
    .page-khuyn-mi__hero-title {
        font-size: 2.2em;
    }
    .page-khuyn-mi__hero-description {
        font-size: 1.1em;
    }
    .page-khuyn-mi__hero-buttons {
        flex-direction: column;
        gap: 15px;
    }
    .page-khuyn-mi__btn {
        width: 80%;
        margin: 0 auto;
    }
    .page-khuyn-mi__section {
        padding: 40px 0;
    }
    .page-khuyn-mi__section-title {
        font-size: 1.8em;
    }
    .page-khuyn-mi__feature-item,
    .page-khuyn-mi__advantage-item,
    .page-khuyn-mi__promo-card {
        padding: 20px;
    }
    .page-khuyn-mi__step-item {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }
    .page-khuyn-mi__step-number {
        margin-bottom: 15px;
    }
}

@media (max-width: 480px) {
    .page-khuyn-mi__hero-title {
        font-size: 1.8em;
    }
    .page-khuyn-mi__hero-description {
        font-size: 1em;
    }
    .page-khuyn-mi__btn {
        width: 90%;
        padding: 12px 25px;
        font-size: 1em;
    }
    .page-khuyn-mi__btn--large {
        padding: 15px 30px;
        font-size: 1.1em;
    }
    .page-khuyn-mi__section-title {
        font-size: 1.5em;
    }
    .page-khuyn-mi__promo-card-grid {
        grid-template-columns: 1fr;
    }
    .page-khuyn-mi__list,
    .page-khuyn-mi__faq-accordion {
        padding: 0 10px;
    }
    .page-khuyn-mi__accordion-header {
        font-size: 1.1em;
        padding: 15px 20px;
    }
    .page-khuyn-mi__accordion-content p {
        padding: 10px 0;
    }
}