/* style/khuyn-mi.css */

/* Biến CSS */
:root {
    --page-khuyn-mi-primary-color: #FFD700; /* Gold */
    --page-khuyn-mi-secondary-color: #1E90FF; /* Deep Sky Blue */
    --page-khuyn-mi-dark-text: #333;
    --page-khuyn-mi-light-text: #fff;
    --page-khuyn-mi-background-light: #f4f4f4;
    --page-khuyn-mi-background-dark: #2c3e50; /* Darker blue/grey for contrast */
    --page-khuyn-mi-card-bg: #ffffff;
    --page-khuyn-mi-border-color: #e0e0e0;
}

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

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

/* Hero Section */
.page-khuyn-mi-hero {
    background: linear-gradient(135deg, var(--page-khuyn-mi-primary-color) 0%, var(--page-khuyn-mi-secondary-color) 100%);
    color: var(--page-khuyn-mi-light-text);
    padding: 80px 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.page-khuyn-mi-hero-title {
    font-size: 3.2em;
    margin-bottom: 20px;
    color: var(--page-khuyn-mi-light-text);
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.page-khuyn-mi-hero-description {
    font-size: 1.2em;
    margin-bottom: 40px;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.page-khuyn-mi-hero-image {
    margin-top: 40px;
}

.page-khuyn-mi-hero-image .page-khuyn-mi-img {
    max-width: 100%;
    height: auto;
    border-radius: 15px;
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
}

/* Buttons */
.page-khuyn-mi-btn {
    display: inline-block;
    background-color: var(--page-khuyn-mi-primary-color);
    color: var(--page-khuyn-mi-dark-text);
    padding: 15px 30px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: bold;
    transition: background-color 0.3s ease, transform 0.3s ease;
    border: none;
    cursor: pointer;
    font-size: 1.1em;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
}

.page-khuyn-mi-btn:hover {
    background-color: #e6c200; /* Slightly darker gold */
    transform: translateY(-3px);
}

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

.page-khuyn-mi-btn-secondary {
    background-color: var(--page-khuyn-mi-secondary-color);
    color: var(--page-khuyn-mi-light-text);
}

.page-khuyn-mi-btn-secondary:hover {
    background-color: #1a7bdc; /* Slightly darker blue */
}

.page-khuyn-mi-btn-large {
    padding: 18px 35px;
    font-size: 1.3em;
}

/* General Section Styles */
.page-khuyn-mi-section {
    padding: 60px 0;
    text-align: center;
}

.page-khuyn-mi-section:nth-of-type(even) {
    background-color: var(--page-khuyn-mi-background-light);
}

.page-khuyn-mi-section-title {
    font-size: 2.5em;
    margin-bottom: 20px;
    color: var(--page-khuyn-mi-secondary-color);
}

.page-khuyn-mi-section-description {
    font-size: 1.1em;
    max-width: 900px;
    margin: 0 auto 40px auto;
    color: var(--page-khuyn-mi-dark-text);
}

/* Why Choose Section */
.page-khuyn-mi-feature-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    list-style: none;
    padding: 0;
    margin-top: 40px;
}

.page-khuyn-mi-feature-item {
    background-color: var(--page-khuyn-mi-card-bg);
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    text-align: left;
    transition: transform 0.3s ease;
}

.page-khuyn-mi-feature-item:hover {
    transform: translateY(-5px);
}

.page-khuyn-mi-feature-title {
    font-size: 1.5em;
    color: var(--page-khuyn-mi-secondary-color);
    margin-bottom: 15px;
}

.page-khuyn-mi-feature-item p {
    color: var(--page-khuyn-mi-dark-text);
}

/* Promotion Types Grid */
.page-khuyn-mi-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.page-khuyn-mi-card {
    background-color: var(--page-khuyn-mi-card-bg);
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    overflow: hidden;
    text-align: left;
    display: flex;
    flex-direction: column;
    transition: transform 0.3s ease;
}

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

.page-khuyn-mi-card-img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    /* NO CSS FILTER HERE */
}

.page-khuyn-mi-card-title {
    font-size: 1.4em;
    color: var(--page-khuyn-mi-secondary-color);
    margin: 20px 20px 10px 20px;
}

.page-khuyn-mi-card-text {
    padding: 0 20px 20px 20px;
    color: var(--page-khuyn-mi-dark-text);
    flex-grow: 1;
}

.page-khuyn-mi-card .page-khuyn-mi-btn {
    margin: 0 20px 20px 20px;
    text-align: center;
    width: calc(100% - 40px);
    box-sizing: border-box;
    background-color: var(--page-khuyn-mi-primary-color);
    color: var(--page-khuyn-mi-dark-text);
}

/* Guide Section */
.page-khuyn-mi-steps {
    list-style: none;
    padding: 0;
    margin-top: 40px;
    display: flex;
    flex-direction: column;
    gap: 25px;
}

.page-khuyn-mi-step-item {
    display: flex;
    align-items: flex-start;
    text-align: left;
    background-color: var(--page-khuyn-mi-card-bg);
    padding: 25px;
    border-radius: 10px;
    box-shadow: 0 3px 10px rgba(0, 0, 0, 0.08);
}

.page-khuyn-mi-step-number {
    background-color: var(--page-khuyn-mi-secondary-color);
    color: var(--page-khuyn-mi-light-text);
    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;
    margin-right: 20px;
}

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

.page-khuyn-mi-step-title {
    font-size: 1.3em;
    color: var(--page-khuyn-mi-secondary-color);
    margin-bottom: 5px;
}

.page-khuyn-mi-step-content p {
    color: var(--page-khuyn-mi-dark-text);
}

.page-khuyn-mi-step-content p a {
    color: var(--page-khuyn-mi-secondary-color);
    text-decoration: none;
    font-weight: bold;
}

.page-khuyn-mi-step-content p a:hover {
    text-decoration: underline;
}

/* Terms Section */
.page-khuyn-mi-terms {
    background-color: var(--page-khuyn-mi-background-dark);
    color: var(--page-khuyn-mi-light-text);
}

.page-khuyn-mi-terms .page-khuyn-mi-section-title {
    color: var(--page-khuyn-mi-primary-color);
}

.page-khuyn-mi-terms .page-khuyn-mi-section-description {
    color: var(--page-khuyn-mi-light-text);
}

.page-khuyn-mi-terms-list {
    list-style: none;
    padding: 0;
    margin-top: 40px;
    text-align: left;
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
}

.page-khuyn-mi-terms-list li {
    background-color: rgba(255, 255, 255, 0.1);
    padding: 15px 20px;
    margin-bottom: 15px;
    border-radius: 8px;
    color: var(--page-khuyn-mi-light-text);
}

.page-khuyn-mi-terms-list li strong {
    color: var(--page-khuyn-mi-primary-color);
}

/* FAQ Section */
.page-khuyn-mi-faq {
    background-color: var(--page-khuyn-mi-background-light);
}

.page-khuyn-mi-accordion {
    margin-top: 40px;
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
}

.page-khuyn-mi-accordion-item {
    background-color: var(--page-khuyn-mi-card-bg);
    border: 1px solid var(--page-khuyn-mi-border-color);
    border-radius: 8px;
    margin-bottom: 15px;
    overflow: hidden;
}

.page-khuyn-mi-accordion-header {
    padding: 20px;
    cursor: pointer;
    background-color: #f9f9f9;
    border-bottom: 1px solid var(--page-khuyn-mi-border-color);
    font-size: 1.2em;
    color: var(--page-khuyn-mi-secondary-color);
    text-align: left;
    margin: 0;
    position: relative;
}

.page-khuyn-mi-accordion-header::after {
    content: '+';
    position: absolute;
    right: 20px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 1.5em;
    transition: transform 0.3s ease;
}

.page-khuyn-mi-accordion-header.active::after {
    content: '-';
    transform: translateY(-50%) rotate(180deg);
}

.page-khuyn-mi-accordion-content {
    padding: 0 20px;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease-out, padding 0.4s ease-out;
    text-align: left;
}

.page-khuyn-mi-accordion-content.active {
    max-height: 200px; /* Adjust as needed */
    padding: 20px;
}

.page-khuyn-mi-accordion-content p {
    color: var(--page-khuyn-mi-dark-text);
}

/* CTA Section */
.page-khuyn-mi-cta {
    background: linear-gradient(135deg, var(--page-khuyn-mi-secondary-color) 0%, #0056b3 100%);
    color: var(--page-khuyn-mi-light-text);
    padding: 80px 0;
}

.page-khuyn-mi-cta .page-khuyn-mi-section-title,
.page-khuyn-mi-cta .page-khuyn-mi-section-description {
    color: var(--page-khuyn-mi-light-text);
}

.page-khuyn-mi-cta .page-khuyn-mi-btn {
    background-color: var(--page-khuyn-mi-primary-color);
    color: var(--page-khuyn-mi-dark-text);
    margin-top: 30px;
}

.page-khuyn-mi-cta .page-khuyn-mi-btn:hover {
    background-color: #e6c200;
}

/* 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-feature-list, .page-khuyn-mi-grid {
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    }
}

@media (max-width: 768px) {
    .page-khuyn-mi-hero {
        padding: 60px 0;
    }
    .page-khuyn-mi-hero-title {
        font-size: 2.2em;
    }
    .page-khuyn-mi-hero-description {
        font-size: 1em;
    }
    .page-khuyn-mi-btn {
        padding: 12px 25px;
        font-size: 1em;
    }
    .page-khuyn-mi-section {
        padding: 40px 0;
    }
    .page-khuyn-mi-section-title {
        font-size: 1.8em;
    }
    .page-khuyn-mi-section-description {
        font-size: 0.95em;
    }
    .page-khuyn-mi-steps {
        gap: 20px;
    }
    .page-khuyn-mi-step-item {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }
    .page-khuyn-mi-step-number {
        margin-right: 0;
        margin-bottom: 15px;
    }
    .page-khuyn-mi-step-content {
        text-align: center;
    }
    .page-khuyn-mi-accordion-header {
        font-size: 1.1em;
    }
    .page-khuyn-mi-accordion-header::after {
        right: 15px;
    }
}

@media (max-width: 480px) {
    .page-khuyn-mi-hero-title {
        font-size: 1.8em;
    }
    .page-khuyn-mi-section-title {
        font-size: 1.6em;
    }
    .page-khuyn-mi-grid {
        grid-template-columns: 1fr;
    }
    .page-khuyn-mi-feature-list {
        grid-template-columns: 1fr;
    }
    .page-khuyn-mi-btn-large {
        padding: 15px 25px;
        font-size: 1.1em;
    }
}