/* style/promotions.css */
/* Biến CSS */
:root {
    --page-promotions-primary-color: #007bff;
    --page-promotions-secondary-color: #ffc107;
    --page-promotions-dark-text: #333333;
    --page-promotions-light-text: #ffffff;
    --page-promotions-background-light: #f8f9fa;
    --page-promotions-background-dark: #0056b3; /* Darker variant of primary */
    --page-promotions-accent-dark: #997404; /* Darker variant of secondary */
}

/* Thiết lập chung cho trang khuyến mãi */
.page-promotions {
    font-family: 'Arial', sans-serif;
    line-height: 1.6;
    color: var(--page-promotions-dark-text);
    background-color: var(--page-promotions-background-light);
}

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

.page-promotions__section-title {
    font-size: 2.5em;
    color: var(--page-promotions-dark-text);
    text-align: center;
    margin-bottom: 40px;
    font-weight: bold;
}

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

.page-promotions .text-secondary {
    color: var(--page-promotions-secondary-color);
}

/* Nút chung */
.page-promotions__btn {
    display: inline-block;
    padding: 12px 25px;
    border-radius: 5px;
    text-decoration: none;
    font-weight: bold;
    transition: background-color 0.3s ease, color 0.3s ease, transform 0.2s ease;
    text-align: center;
    cursor: pointer;
    border: none;
}

.page-promotions__btn--primary {
    background-color: var(--page-promotions-primary-color);
    color: var(--page-promotions-light-text);
}

.page-promotions__btn--primary:hover {
    background-color: var(--page-promotions-background-dark);
    transform: translateY(-2px);
}

.page-promotions__btn--secondary {
    background-color: var(--page-promotions-secondary-color);
    color: var(--page-promotions-dark-text);
}

.page-promotions__btn--secondary:hover {
    background-color: var(--page-promotions-accent-dark);
    transform: translateY(-2px);
}

.page-promotions__btn--outline {
    background-color: transparent;
    color: var(--page-promotions-primary-color);
    border: 2px solid var(--page-promotions-primary-color);
    padding: 10px 23px;
}

.page-promotions__btn--outline:hover {
    background-color: var(--page-promotions-primary-color);
    color: var(--page-promotions-light-text);
}

.page-promotions__btn--large {
    padding: 15px 35px;
    font-size: 1.1em;
}

/* Hero Section */
.page-promotions__hero {
    background: linear-gradient(135deg, var(--page-promotions-primary-color) 0%, #0056b3 100%);
    color: var(--page-promotions-light-text);
    padding: 80px 0;
    text-align: center;
    position: relative;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 450px;
}

.page-promotions__hero-image-wrapper {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0.15;
    z-index: 0;
}

.page-promotions__hero-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.page-promotions__hero .page-promotions__container {
    position: relative;
    z-index: 1;
}

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

.page-promotions__hero-description {
    font-size: 1.2em;
    margin-bottom: 40px;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
    color: rgba(255, 255, 255, 0.9);
}

/* Intro Section */
.page-promotions__intro {
    padding: 60px 0;
    background-color: var(--page-promotions-background-light);
}

.page-promotions__intro-text {
    font-size: 1.1em;
    text-align: center;
    max-width: 900px;
    margin: 0 auto 50px auto;
}

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

.page-promotions__intro-item {
    background-color: var(--page-promotions-light-text);
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
}

.page-promotions__intro-icon {
    width: 60px;
    height: 60px;
    margin-bottom: 20px;
    object-fit: contain;
}

.page-promotions__intro-item h3 {
    font-size: 1.4em;
    color: var(--page-promotions-primary-color);
    margin-bottom: 15px;
}

/* Categories Section */
.page-promotions__categories {
    padding: 60px 0;
    background-color: #e9ecef; /* Slightly darker background for contrast */
}

.page-promotions__categories-description {
    font-size: 1.1em;
    text-align: center;
    max-width: 900px;
    margin: 0 auto 50px auto;
}

.page-promotions__category-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.page-promotions__category-card {
    background-color: var(--page-promotions-light-text);
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
    text-align: center;
    transition: transform 0.3s ease;
}

.page-promotions__category-card:hover {
    transform: translateY(-10px);
}

.page-promotions__category-icon {
    width: 80px;
    height: 80px;
    margin-bottom: 20px;
    object-fit: contain;
}

.page-promotions__category-card h3 {
    font-size: 1.5em;
    color: var(--page-promotions-primary-color);
    margin-bottom: 15px;
}

.page-promotions__category-card p {
    color: var(--page-promotions-dark-text);
}

/* Featured Promotions */
.page-promotions__featured {
    padding: 60px 0;
    background-color: var(--page-promotions-background-light);
}

.page-promotions__featured-description {
    font-size: 1.1em;
    text-align: center;
    max-width: 900px;
    margin: 0 auto 50px auto;
}

.page-promotions__featured-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 40px;
}

@media (min-width: 768px) {
    .page-promotions__featured-grid {
        grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    }
}

.page-promotions__featured-card {
    background-color: var(--page-promotions-light-text);
    border-radius: 10px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.page-promotions__featured-image {
    width: 100%;
    height: 250px;
    object-fit: cover;
}

.page-promotions__featured-content {
    padding: 30px;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.page-promotions__featured-content h3 {
    font-size: 1.8em;
    color: var(--page-promotions-primary-color);
    margin-bottom: 15px;
}

.page-promotions__featured-content p {
    margin-bottom: 25px;
    color: var(--page-promotions-dark-text);
}

/* All Promotions List */
.page-promotions__list {
    padding: 60px 0;
    background-color: #e9ecef;
}

.page-promotions__list-description {
    font-size: 1.1em;
    text-align: center;
    max-width: 900px;
    margin: 0 auto 50px auto;
}

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

.page-promotions__promotion-item {
    background-color: var(--page-promotions-light-text);
    border-radius: 10px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transition: transform 0.3s ease;
}

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

.page-promotions__promotion-image {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

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

.page-promotions__promotion-content h3 {
    font-size: 1.5em;
    margin-bottom: 10px;
}

.page-promotions__promotion-title-link {
    color: var(--page-promotions-primary-color);
    text-decoration: none;
    font-weight: bold;
}

.page-promotions__promotion-title-link:hover {
    text-decoration: underline;
}

.page-promotions__promotion-content p {
    font-size: 0.95em;
    color: #555;
    margin-bottom: 20px;
    flex-grow: 1;
}

.page-promotions__promotion-actions {
    display: flex;
    gap: 10px;
    margin-top: auto; /* Push buttons to the bottom */
}

/* Claim Guide Section */
.page-promotions__claim-guide {
    padding: 60px 0;
    background-color: var(--page-promotions-background-light);
    text-align: center;
}

.page-promotions__claim-guide-description {
    font-size: 1.1em;
    max-width: 900px;
    margin: 0 auto 50px auto;
}

.page-promotions__guide-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    margin-bottom: 50px;
}

.page-promotions__guide-step {
    background-color: var(--page-promotions-light-text);
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
    position: relative;
    padding-top: 60px; /* Space for step number */
}

.page-promotions__step-number {
    position: absolute;
    top: 20px;
    left: 50%;
    transform: translateX(-50%);
    background-color: var(--page-promotions-secondary-color);
    color: var(--page-promotions-dark-text);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5em;
    font-weight: bold;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.page-promotions__guide-step h3 {
    font-size: 1.4em;
    color: var(--page-promotions-primary-color);
    margin-bottom: 15px;
}

.page-promotions__guide-step p {
    color: var(--page-promotions-dark-text);
}

.page-promotions__claim-guide-image {
    max-width: 80%;
    height: auto;
    border-radius: 10px;
    margin-bottom: 30px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
}

.page-promotions__claim-guide-note {
    font-style: italic;
    color: #666;
    font-size: 1em;
}

/* FAQ Section */
.page-promotions__faq {
    padding: 60px 0;
    background-color: #f0f2f5;
}

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

.page-promotions__faq-item {
    background-color: var(--page-promotions-light-text);
    border-radius: 8px;
    margin-bottom: 20px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    overflow: hidden;
}

.page-promotions__faq-question {
    padding: 20px 25px;
    font-size: 1.2em;
    color: var(--page-promotions-dark-text);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background-color: var(--page-promotions-light-text);
    border-bottom: 1px solid #eee;
    margin: 0;
}

.page-promotions__faq-question::after {
    content: '+';
    font-size: 1.5em;
    color: var(--page-promotions-primary-color);
    transition: transform 0.3s ease;
}

.page-promotions__faq-question.active::after {
    content: '-';
    transform: rotate(180deg);
}

.page-promotions__faq-answer {
    padding: 0 25px;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.5s ease-out, padding 0.5s ease-out;
    background-color: #fdfdfd;
}

.page-promotions__faq-answer.active {
    max-height: 200px; /* Adjust based on content */
    padding: 20px 25px;
}

.page-promotions__faq-answer p {
    color: #555;
    margin-bottom: 0;
}

/* Final CTA Section */
.page-promotions__cta-final {
    background: linear-gradient(90deg, #0056b3 0%, var(--page-promotions-primary-color) 100%);
    color: var(--page-promotions-light-text);
    padding: 80px 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.page-promotions__cta-image {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.1;
    z-index: 0;
}

.page-promotions__cta-final .page-promotions__container {
    position: relative;
    z-index: 1;
}

.page-promotions__cta-description {
    font-size: 1.2em;
    max-width: 800px;
    margin: 0 auto 40px auto;
    color: rgba(255, 255, 255, 0.9);
}

/* Responsive Design */
@media (max-width: 992px) {
    .page-promotions__hero-title {
        font-size: 2.8em;
    }
    .page-promotions__section-title {
        font-size: 2em;
    }
    .page-promotions__category-grid, .page-promotions__promotion-grid, .page-promotions__guide-steps {
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    }
}

@media (max-width: 768px) {
    .page-promotions__hero {
        padding: 60px 0;
    }
    .page-promotions__hero-title {
        font-size: 2.2em;
    }
    .page-promotions__hero-description {
        font-size: 1em;
    }
    .page-promotions__btn--large {
        padding: 12px 25px;
        font-size: 1em;
    }
    .page-promotions__section-title {
        font-size: 1.8em;
    }
    .page-promotions__intro-text, .page-promotions__categories-description, .page-promotions__featured-description, .page-promotions__list-description, .page-promotions__claim-guide-description, .page-promotions__cta-description {
        font-size: 0.95em;
    }
    .page-promotions__featured-card {
        flex-direction: column;
    }
    .page-promotions__featured-image {
        height: 200px;
    }
    .page-promotions__promotion-actions {
        flex-direction: column;
    }
    .page-promotions__btn {
        width: 100%;
    }
    .page-promotions__faq-question {
        font-size: 1.1em;
        padding: 15px 20px;
    }
    .page-promotions__faq-answer {
        padding: 15px 20px;
    }
}

@media (max-width: 480px) {
    .page-promotions__hero-title {
        font-size: 1.8em;
    }
    .page-promotions__section-title {
        font-size: 1.5em;
    }
    .page-promotions__container {
        padding: 0 15px;
    }
    .page-promotions__intro-grid, .page-promotions__category-grid, .page-promotions__promotion-grid, .page-promotions__guide-steps {
        grid-template-columns: 1fr;
    }
    .page-promotions__intro-item, .page-promotions__category-card, .page-promotions__featured-card, .page-promotions__promotion-item, .page-promotions__guide-step {
        padding: 20px;
    }
    .page-promotions__faq-question {
        font-size: 1em;
    }
    .page-promotions__faq-answer {
        font-size: 0.9em;
    }
}