/* style/bnc.css */
/* body 已 padding-top: var(--header-offset)；页面禁止再写该变量 */

/* Màu sắc tùy chỉnh */
:root {
    --color-primary: #11A84E;
    --color-secondary: #22C768;
    --color-button-gradient: linear-gradient(180deg, #2AD16F 0%, #13994A 100%);
    --color-card-bg: #11271B;
    --color-background: #08160F;
    --color-text-main: #F2FFF6;
    --color-text-secondary: #A7D9B8;
    --color-border: #2E7A4E;
    --color-glow: #57E38D;
    --color-gold: #F2C14E;
    --color-divider: #1E3A2A;
    --color-deep-green: #0A4B2C;
}

.page-bnc {
    font-family: Arial, sans-serif;
    color: var(--color-text-main); /* Main text color for the page, assuming dark body background */
    background-color: var(--color-background); /* Override if body background is not var(--bg-color) or for specific sections */
    line-height: 1.6;
}

/* Base container styling */
.page-bnc__container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
    box-sizing: border-box;
}

/* Section styling */
.page-bnc__section {
    padding: 60px 0;
    text-align: center;
}

.page-bnc__section-title {
    font-size: clamp(28px, 4vw, 42px); /* Responsive font size */
    color: var(--color-text-main);
    margin-bottom: 30px;
    position: relative;
    padding-bottom: 10px;
}

.page-bnc__section-title::after {
    content: '';
    display: block;
    width: 60px;
    height: 3px;
    background: var(--color-primary);
    margin: 10px auto 0;
}

.page-bnc__text-block {
    font-size: 18px;
    color: var(--color-text-secondary);
    margin-bottom: 20px;
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
}

/* Hero Section */
.page-bnc__hero-section {
    position: relative;
    width: 100%;
    display: flex;
    flex-direction: column; /* Image on top, content below */
    align-items: center;
    padding: 10px 0 60px 0; /* Small top padding, body handles header offset */
    background-color: var(--color-deep-green); /* A darker shade for the hero background */
}

.page-bnc__hero-image-wrapper {
    width: 100%;
    max-height: 600px; /* Limit image height */
    overflow: hidden;
}

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

.page-bnc__hero-content {
    max-width: 900px;
    margin: 40px auto 0;
    padding: 0 20px;
    text-align: center;
    color: var(--color-text-main);
}

.page-bnc__main-title {
    font-size: clamp(32px, 5vw, 56px); /* Responsive H1 font size */
    color: var(--color-gold); /* Gold color for main title */
    margin-bottom: 20px;
    font-weight: bold;
    line-height: 1.2;
}

.page-bnc__description {
    font-size: 20px;
    color: var(--color-text-secondary);
    margin-bottom: 30px;
}

.page-bnc__cta-buttons {
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap; /* Allow buttons to wrap on smaller screens */
}

.page-bnc__btn-primary,
.page-bnc__btn-secondary {
    display: inline-block;
    padding: 15px 30px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: bold;
    font-size: 18px;
    transition: all 0.3s ease;
    white-space: nowrap;
    box-sizing: border-box;
    max-width: 100%;
    width: auto;
}

.page-bnc__btn-primary {
    background: var(--color-button-gradient);
    color: var(--color-text-main); /* White text for primary button */
    border: none;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.page-bnc__btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
    opacity: 0.9;
}

.page-bnc__btn-secondary {
    background-color: transparent;
    color: var(--color-gold);
    border: 2px solid var(--color-gold);
}

.page-bnc__btn-secondary:hover {
    background-color: var(--color-gold);
    color: var(--color-background);
    transform: translateY(-3px);
}

/* About Section */
.page-bnc__about-bnc .page-bnc__container {
    padding-top: 40px;
    padding-bottom: 40px;
}

.page-bnc__image-content {
    width: 100%;
    height: auto;
    display: block;
    margin: 40px auto;
    border-radius: 10px;
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.3);
}

/* Card Styling */
.page-bnc__card {
    background-color: var(--color-card-bg);
    border: 1px solid var(--color-border);
    border-radius: 10px;
    padding: 25px;
    text-align: center;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    color: var(--color-text-main);
    display: flex;
    flex-direction: column;
    align-items: center;
}

.page-bnc__card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
}

.page-bnc__card-image {
    width: 100%;
    height: auto;
    max-height: 200px;
    object-fit: cover;
    border-radius: 8px;
    margin-bottom: 20px;
    display: block;
}

.page-bnc__card-title {
    font-size: 22px;
    color: var(--color-gold);
    margin-bottom: 10px;
}

.page-bnc__card-title a {
    color: var(--color-gold);
    text-decoration: none;
    transition: color 0.3s ease;
}

.page-bnc__card-title a:hover {
    color: var(--color-glow);
}

.page-bnc__card-description {
    font-size: 16px;
    color: var(--color-text-secondary);
}

/* Featured Games Section */
.page-bnc__featured-games {
    background-color: var(--color-deep-green);
}

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

/* Advantages Section */
.page-bnc__advantages {
    background-color: var(--color-background);
}

.page-bnc__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.page-bnc__advantage-item {
    padding: 30px;
}

.page-bnc__advantage-icon {
    width: 100px;
    height: 100px;
    margin-bottom: 20px;
    object-fit: contain;
}

.page-bnc__advantage-title {
    font-size: 20px;
    color: var(--color-gold);
    margin-bottom: 10px;
}

.page-bnc__advantage-description {
    font-size: 16px;
    color: var(--color-text-secondary);
}

/* How to Play Section */
.page-bnc__how-to-play .page-bnc__container {
    padding-top: 40px;
    padding-bottom: 40px;
}

.page-bnc__step-list {
    list-style: none;
    padding: 0;
    margin-top: 40px;
}

.page-bnc__step-item {
    background-color: var(--color-card-bg);
    border: 1px solid var(--color-border);
    border-radius: 10px;
    padding: 25px;
    margin-bottom: 20px;
    text-align: left;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.page-bnc__step-title {
    font-size: 22px;
    color: var(--color-gold);
    margin-bottom: 10px;
}

.page-bnc__step-description {
    font-size: 16px;
    color: var(--color-text-secondary);
}

.page-bnc__step-description a {
    color: var(--color-primary);
    text-decoration: none;
}

.page-bnc__step-description a:hover {
    text-decoration: underline;
}

/* Promotions Section */
.page-bnc__promotions {
    background-color: var(--color-deep-green);
}

.page-bnc__promo-list {
    list-style: none;
    padding: 0;
    margin-top: 40px;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.page-bnc__promo-item {
    background-color: var(--color-card-bg);
    border: 1px solid var(--color-border);
    border-radius: 10px;
    padding: 25px;
    text-align: left;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.page-bnc__promo-title {
    font-size: 22px;
    color: var(--color-gold);
    margin-bottom: 10px;
}

.page-bnc__promo-description {
    font-size: 16px;
    color: var(--color-text-secondary);
}

.page-bnc__cta-center {
    margin-top: 40px;
}

/* FAQ Section */
.page-bnc__faq {
    background-color: var(--color-background);
}

.page-bnc__faq-list {
    margin-top: 40px;
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
}

.page-bnc__faq-item {
    background-color: var(--color-card-bg);
    border: 1px solid var(--color-border);
    border-radius: 10px;
    margin-bottom: 15px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    text-align: left;
}

.page-bnc__faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 25px;
    font-size: 18px;
    font-weight: bold;
    color: var(--color-gold);
    cursor: pointer;
    list-style: none; /* Remove default marker for details summary */
}

.page-bnc__faq-question::-webkit-details-marker {
    display: none; /* Hide default marker for Webkit browsers */
}

.page-bnc__faq-toggle {
    font-size: 24px;
    line-height: 1;
    color: var(--color-primary);
    transition: transform 0.3s ease;
}

.page-bnc__faq-item[open] .page-bnc__faq-toggle {
    transform: rotate(45deg);
}

.page-bnc__faq-answer {
    padding: 0 25px 20px;
    font-size: 16px;
    color: var(--color-text-secondary);
    border-top: 1px solid var(--color-divider);
}

.page-bnc__faq-answer p {
    margin-top: 15px;
}

.page-bnc__faq-answer a {
    color: var(--color-primary);
    text-decoration: none;
}

.page-bnc__faq-answer a:hover {
    text-decoration: underline;
}

/* Final CTA Section */
.page-bnc__final-cta {
    background-color: var(--color-deep-green);
    padding: 80px 0;
}

.page-bnc__final-cta .page-bnc__container {
    background-color: var(--color-card-bg); /* Use card background for inner container */
    padding: 50px;
    border-radius: 15px;
    border: 1px solid var(--color-border);
}

.page-bnc__section-title--light,
.page-bnc__description--light {
    color: var(--color-text-main); /* Ensure light text on dark background */
}

/* Responsive adjustments */
@media (max-width: 1024px) {
    .page-bnc__hero-image-wrapper {
        max-height: 450px;
    }
}

@media (max-width: 768px) {
    .page-bnc__section {
        padding: 40px 0;
    }

    .page-bnc__hero-section {
        padding-top: 10px !important; /* body handles --header-offset, this is small decorative padding */
        padding-bottom: 40px;
    }

    .page-bnc__hero-image-wrapper {
        max-height: 300px;
    }

    .page-bnc__main-title {
        font-size: clamp(28px, 8vw, 40px);
    }

    .page-bnc__description {
        font-size: 16px;
    }

    .page-bnc__cta-buttons {
        flex-direction: column;
        align-items: center;
        gap: 15px;
    }

    .page-bnc__btn-primary,
    .page-bnc__btn-secondary {
        width: 100% !important;
        max-width: 300px !important; /* Constrain button width on mobile */
        white-space: normal !important;
        word-wrap: break-word !important;
        padding-left: 15px;
        padding-right: 15px;
    }
    
    .page-bnc__container,
    .page-bnc__card,
    .page-bnc__advantage-item,
    .page-bnc__step-item,
    .page-bnc__promo-item,
    .page-bnc__final-cta .page-bnc__container {
        padding-left: 15px !important;
        padding-right: 15px !important;
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
    }

    .page-bnc img {
        max-width: 100% !important;
        width: 100% !important;
        height: auto !important;
        display: block !important;
    }

    .page-bnc__game-cards,
    .page-bnc__grid,
    .page-bnc__promo-list {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .page-bnc__card-image {
        max-height: 150px;
    }

    .page-bnc__final-cta .page-bnc__container {
        padding: 30px 20px;
    }
}

@media (max-width: 480px) {
    .page-bnc__section-title {
        font-size: clamp(24px, 6vw, 36px);
    }
    .page-bnc__main-title {
        font-size: clamp(28px, 9vw, 38px);
    }
    .page-bnc__description {
        font-size: 15px;
    }
    .page-bnc__text-block {
        font-size: 16px;
    }
}

/* Ensure minimum image size and no filters */
.page-bnc img {
    min-width: 200px; /* Minimum size requirement */
    min-height: 200px;
    filter: none !important; /* No CSS filters to change image colors */
}

/* Specific overrides for smaller images if they exist but still enforce min-size */
.page-bnc__advantage-icon {
    min-width: 100px; /* These will be scaled up to 200x200 by the image generation system if they are smaller */
    min-height: 100px; 
    object-fit: contain; /* Ensure small icons maintain aspect ratio if forced to 200x200 */
}