/* style/khuyen-mai.css */

/* Variables and Base Styles for Dark Theme */
:root {
    --primary-color: #F2C14E; /* Main */
    --secondary-color: #FFD36B; /* Auxiliary */
    --card-bg: #111111;
    --background-dark: #0A0A0A;
    --text-light: #FFF6D6;
    --border-color: #3A2A12;
    --glow-color: #FFD36B;
    --btn-gradient: linear-gradient(180deg, #FFD86A 0%, #DDA11D 100%);
    --text-dark: #333333; /* For contrast on light backgrounds, if any */
}

.page-khuyen-mai {
    background-color: var(--background-dark); /* Ensure dark background */
    color: var(--text-light); /* Light text for dark background */
    font-family: 'Arial', sans-serif;
    line-height: 1.6;
    padding-bottom: 40px; /* General padding for bottom */
}

/* Fixed Header Spacing: Shared.css should handle body padding-top. This page needs minimal top padding. */
.page-khuyen-mai__hero-section {
    padding-top: 10px; /* Small top padding, body handles header offset */
    position: relative;
    display: flex;
    flex-direction: column; /* Image above content */
    align-items: center;
    text-align: center;
    overflow: hidden;
}

.page-khuyen-mai__hero-image {
    width: 100%;
    height: auto;
    max-height: 675px; /* Limit height for aesthetic */
    object-fit: cover;
    display: block;
    margin-bottom: 20px; /* Space between image and text */
}

.page-khuyen-mai__hero-content-wrapper {
    max-width: 900px;
    padding: 0 20px 40px; /* Padding for text content */
    width: 100%;
    box-sizing: border-box;
    z-index: 1; /* Ensure text is above any potential background layers */
}

.page-khuyen-mai__main-title {
    font-size: clamp(2.5rem, 5vw, 3.5rem); /* Responsive H1 font size */
    color: var(--secondary-color);
    margin-bottom: 15px;
    font-weight: 700;
    line-height: 1.2;
    text-shadow: 0 0 10px rgba(255, 211, 107, 0.5); /* Subtle glow */
}

.page-khuyen-mai__hero-description {
    font-size: 1.2rem;
    color: var(--text-light);
    margin-bottom: 30px;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.page-khuyen-mai__cta-buttons {
    display: flex;
    gap: 15px;
    justify-content: center;
    flex-wrap: wrap; /* Allow buttons to wrap on smaller screens */
    width: 100%; /* Ensure container takes full width */
    max-width: 600px; /* Limit button group width */
    margin: 0 auto;
}

.page-khuyen-mai__btn {
    display: inline-block;
    padding: 14px 30px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: bold;
    font-size: 1.1rem;
    cursor: pointer;
    transition: all 0.3s ease;
    text-align: center;
    border: none;
    box-sizing: border-box; /* Include padding and border in element's total width and height */
    white-space: normal; /* Allow text to wrap */
    word-wrap: break-word; /* Break long words */
    max-width: 100%; /* Ensure buttons adapt to container width */
}

.page-khuyen-mai__btn--primary {
    background: var(--btn-gradient);
    color: #ffffff; /* White text for contrast */
    box-shadow: 0 4px 15px rgba(255, 211, 107, 0.4);
}

.page-khuyen-mai__btn--primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(255, 211, 107, 0.6);
}

.page-khuyen-mai__btn--secondary {
    background-color: transparent;
    color: var(--secondary-color);
    border: 2px solid var(--secondary-color);
    box-shadow: 0 2px 10px rgba(255, 211, 107, 0.2);
}

.page-khuyen-mai__btn--secondary:hover {
    background-color: var(--secondary-color);
    color: var(--background-dark);
    box-shadow: 0 4px 15px rgba(255, 211, 107, 0.4);
}

.page-khuyen-mai__btn--tertiary {
    background-color: var(--border-color);
    color: var(--text-light);
    border: 1px solid var(--border-color);
    padding: 10px 20px;
    font-size: 1rem;
}

.page-khuyen-mai__btn--tertiary:hover {
    background-color: var(--primary-color);
    color: #ffffff;
    border-color: var(--primary-color);
}

.page-khuyen-mai__btn--small {
    padding: 8px 18px;
    font-size: 0.9rem;
    border-radius: 5px;
    margin-top: 15px;
}

/* General Section Styling */
.page-khuyen-mai__section {
    padding: 60px 0;
    border-top: 1px solid var(--border-color);
}

.page-khuyen-mai__content-wrapper {
    max-width: 1150px;
    margin: 0 auto;
    padding: 0 20px;
    box-sizing: border-box;
}

.page-khuyen-mai__section-title {
    font-size: 2.5rem;
    color: var(--primary-color);
    text-align: center;
    margin-bottom: 40px;
    font-weight: 700;
    text-shadow: 0 0 8px rgba(242, 193, 78, 0.3);
}

.page-khuyen-mai p {
    margin-bottom: 20px;
    font-size: 1.1rem;
    color: var(--text-light);
}

.page-khuyen-mai p a {
    color: var(--secondary-color);
    text-decoration: underline;
}

.page-khuyen-mai p a:hover {
    color: var(--primary-color);
}

.page-khuyen-mai ul,
.page-khuyen-mai ol {
    margin-bottom: 20px;
    padding-left: 25px;
    list-style-position: outside;
    color: var(--text-light);
}

.page-khuyen-mai ul li {
    list-style-type: disc;
    margin-bottom: 10px;
    font-size: 1.1rem;
}

.page-khuyen-mai ol li {
    list-style-type: decimal;
    margin-bottom: 10px;
    font-size: 1.1rem;
}

/* Image Figures */
.page-khuyen-mai__image-figure {
    margin: 40px auto;
    max-width: 800px;
    width: 100%;
    text-align: center;
    background-color: var(--card-bg); /* Dark background for figure */
    padding: 15px;
    border-radius: 10px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.3);
    border: 1px solid var(--border-color);
}

.page-khuyen-mai__image-figure img {
    max-width: 100%;
    height: auto;
    display: block;
    border-radius: 8px;
    margin-bottom: 10px;
}

.page-khuyen-mai__image-caption {
    font-style: italic;
    font-size: 0.95rem;
    color: var(--secondary-color);
    padding: 5px 0;
}

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

.page-khuyen-mai__promo-card {
    background-color: var(--card-bg);
    border-radius: 12px;
    padding: 30px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.4);
    border: 1px solid var(--border-color);
    text-align: center;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.page-khuyen-mai__promo-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(255, 211, 107, 0.2);
}

.page-khuyen-mai__card-title {
    font-size: 1.5rem;
    color: var(--secondary-color);
    margin-bottom: 15px;
    font-weight: 600;
}

.page-khuyen-mai__promo-card p {
    font-size: 1rem;
    color: var(--text-light);
    flex-grow: 1; /* Ensure paragraphs take available space */
    margin-bottom: 20px;
}

/* FAQ Section */
.page-khuyen-mai__faq-list {
    margin-top: 30px;
}

.page-khuyen-mai__faq-item {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    margin-bottom: 15px;
    overflow: hidden;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

.page-khuyen-mai__faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px;
    cursor: pointer;
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--primary-color);
    position: relative;
    list-style: none; /* For details/summary */
}

/* Hide default details marker */
.page-khuyen-mai__faq-item summary::-webkit-details-marker {
    display: none;
}
.page-khuyen-mai__faq-item summary::marker {
    display: none;
}

.page-khuyen-mai__faq-toggle {
    font-size: 1.5rem;
    line-height: 1;
    color: var(--secondary-color);
    margin-left: 15px;
}

/* Conclusion Section */
.page-khuyen-mai__conclusion-section .page-khuyen-mai__cta-buttons {
    margin-top: 40px;
}

/* Responsive Styles */
@media (max-width: 1024px) {
    .page-khuyen-mai__main-title {
        font-size: clamp(2rem, 6vw, 3rem);
    }

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

    .page-khuyen-mai__promo-grid {
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
        gap: 20px;
    }
}

@media (max-width: 768px) {
    /* 1. 顶区标题 + 双 CTA */
    .page-khuyen-mai__hero-section {
        padding-top: 10px !important; /* Ensure minimal top padding */
    }

    .page-khuyen-mai__hero-content-wrapper {
        padding: 0 15px 30px;
    }

    .page-khuyen-mai__main-title {
        font-size: clamp(1.8rem, 8vw, 2.5rem);
        margin-bottom: 10px;
    }

    .page-khuyen-mai__hero-description {
        font-size: 1rem;
        margin-bottom: 20px;
    }

    .page-khuyen-mai__cta-buttons {
        flex-direction: column;
        gap: 10px;
        max-width: 100% !important;
        width: 100% !important;
        padding-left: 15px;
        padding-right: 15px;
        box-sizing: border-box !important;
        overflow: hidden !important;
    }

    .page-khuyen-mai__btn {
        width: 100% !important;
        max-width: 100% !important;
        padding: 12px 15px !important;
        font-size: 1rem !important;
        white-space: normal !important;
        word-wrap: break-word !important;
        box-sizing: border-box !important;
    }

    /* 2. 单栏长文容器 */
    .page-khuyen-mai__content-wrapper {
        padding: 0 15px !important;
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
    }

    .page-khuyen-mai__section {
        padding: 40px 0;
    }

    .page-khuyen-mai__section-title {
        font-size: 1.8rem;
        margin-bottom: 30px;
    }

    .page-khuyen-mai p,
    .page-khuyen-mai ul li,
    .page-khuyen-mai ol li,
    .page-khuyen-mai__promo-card p {
        font-size: 1rem;
    }

    /* 3. 通用图片与 figure */
    .page-khuyen-mai img {
        max-width: 100% !important;
        width: 100% !important;
        height: auto !important;
        display: block;
    }

    .page-khuyen-mai__image-figure {
        margin: 30px auto;
        padding: 10px;
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
    }

    .page-khuyen-mai__image-caption {
        font-size: 0.85rem;
    }

    /* Promo Grid on mobile */
    .page-khuyen-mai__promo-grid {
        grid-template-columns: 1fr;
        gap: 20px;
        margin-top: 20px;
        margin-bottom: 20px;
    }

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

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

    /* FAQ Section on mobile */
    .page-khuyen-mai__faq-question {
        font-size: 1.1rem;
        padding: 15px;
    }

    .page-khuyen-mai__faq-answer {
        padding: 0 15px 15px;
        font-size: 0.95rem;
    }
}