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

.page-vip-program {
    font-family: Arial, sans-serif;
    color: var(--color-text-main); /* Text main color for entire page content */
    background-color: var(--color-background); /* Main background color */
    line-height: 1.6;
    font-size: 16px;
}

.page-vip-program__container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    box-sizing: border-box;
}

/* Hero Section */
.page-vip-program__hero-section {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    overflow: hidden;
    padding-bottom: 60px; /* Space for content below image */
    padding-top: 10px; /* Small top padding, body handles header offset */
}

.page-vip-program__hero-image-wrapper {
    width: 100%;
    position: relative;
    order: 1; /* Image first in DOM */
}

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

.page-vip-program__hero-content {
    order: 2; /* Content after image in DOM */
    padding: 40px 20px;
    max-width: 800px;
    z-index: 1;
    background: var(--color-card-bg); /* Use card background for content block */
    border-radius: 10px;
    margin-top: -80px; /* Pull content up over image slightly for visual flow */
    position: relative; /* To allow z-index to work */
    box-shadow: 0 10px 30px rgba(0,0,0,0.3);
}

.page-vip-program__main-title {
    font-size: clamp(2em, 3.5vw, 3.5em); /* Responsive H1 font size */
    color: var(--color-gold);
    margin-bottom: 20px;
    font-weight: 700;
    line-height: 1.2;
    letter-spacing: -0.02em;
}

.page-vip-program__description {
    font-size: 1.1em;
    color: var(--color-text-secondary);
    margin-bottom: 30px;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.page-vip-program__cta-button {
    display: inline-block;
    background: var(--color-button-gradient);
    color: var(--color-text-main); /* White text on button */
    padding: 15px 30px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: bold;
    font-size: 1.1em;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border: none;
    cursor: pointer;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
}

.page-vip-program__cta-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.4);
}

.page-vip-program__cta-button--large {
    padding: 18px 35px;
    font-size: 1.2em;
}

.page-vip-program__cta-button--final {
    margin-top: 40px;
}

/* General Sections */
.page-vip-program__intro-section,
.page-vip-program__levels-section,
.page-vip-program__perks-section,
.page-vip-program__join-section,
.page-vip-program__faq-section,
.page-vip-program__conclusion-section {
    padding: 60px 0;
    text-align: center;
}

.page-vip-program__section-title {
    font-size: 2.5em;
    color: var(--color-gold);
    margin-bottom: 30px;
    font-weight: 700;
}

.page-vip-program__text-block {
    font-size: 1.05em;
    color: var(--color-text-secondary);
    margin-bottom: 20px;
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
    text-align: left;
}

.page-vip-program__image {
    max-width: 100%;
    height: auto;
    display: block;
    margin: 40px auto;
    border-radius: 10px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.2);
}

/* Levels Section */
.page-vip-program__level-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    margin-top: 40px;
    text-align: left;
}

.page-vip-program__level-card {
    background-color: var(--color-card-bg);
    border: 1px solid var(--color-border);
    border-radius: 10px;
    padding: 30px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.2);
    transition: transform 0.3s ease;
    color: var(--color-text-main); /* Light text on dark card */
}

.page-vip-program__level-card:hover {
    transform: translateY(-5px);
}

.page-vip-program__level-title {
    font-size: 1.8em;
    color: var(--color-gold);
    margin-bottom: 15px;
    font-weight: 600;
}

.page-vip-program__level-description {
    font-size: 0.95em;
    color: var(--color-text-secondary);
    margin-bottom: 20px;
}

.page-vip-program__level-benefits {
    list-style: none;
    padding: 0;
    margin: 0;
}

.page-vip-program__level-benefits li {
    font-size: 0.9em;
    color: var(--color-text-main);
    margin-bottom: 10px;
    position: relative;
    padding-left: 25px;
}

.page-vip-program__level-benefits li::before {
    content: '✅'; /* Checkmark icon */
    position: absolute;
    left: 0;
    color: var(--color-secondary);
}

/* Perks Section */
.page-vip-program__perks-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 40px;
    text-align: left;
}

.page-vip-program__perk-item {
    background-color: var(--color-card-bg);
    border: 1px solid var(--color-border);
    border-radius: 10px;
    padding: 30px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.2);
    transition: transform 0.3s ease;
    color: var(--color-text-main); /* Light text on dark card */
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

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

.page-vip-program__perk-icon {
    width: 400px; /* Base width for image, will be overridden by responsive rules */
    height: 300px; /* Base height for image, will be overridden by responsive rules */
    margin-bottom: 20px;
    border-radius: 5px;
    object-fit: cover;
    min-width: 200px; /* Enforce minimum size for actual image, even if displayed smaller */
    min-height: 200px;
}

.page-vip-program__perk-title {
    font-size: 1.5em;
    color: var(--color-gold);
    margin-bottom: 10px;
    font-weight: 600;
}

.page-vip-program__perk-description {
    font-size: 0.95em;
    color: var(--color-text-secondary);
}

/* Join Section */
.page-vip-program__join-steps {
    list-style: none;
    padding: 0;
    margin: 40px auto 0 auto;
    max-width: 800px;
    text-align: left;
}

.page-vip-program__join-steps li {
    background-color: var(--color-card-bg);
    border: 1px solid var(--color-border);
    border-radius: 10px;
    padding: 25px;
    margin-bottom: 20px;
    display: flex;
    align-items: flex-start;
    gap: 20px;
    box-shadow: 0 3px 10px rgba(0,0,0,0.15);
}

.page-vip-program__step-number {
    font-size: 2em;
    color: var(--color-gold);
    font-weight: bold;
    flex-shrink: 0;
}

.page-vip-program__step-title {
    font-size: 1.4em;
    color: var(--color-gold);
    margin-top: 0;
    margin-bottom: 10px;
    font-weight: 600;
}

.page-vip-program__step-description {
    font-size: 1em;
    color: var(--color-text-secondary);
    margin: 0;
}

/* FAQ Section */
.page-vip-program__faq-list {
    margin-top: 40px;
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
    text-align: left;
}

.page-vip-program__faq-item {
    background-color: var(--color-card-bg);
    border: 1px solid var(--color-border);
    border-radius: 8px;
    margin-bottom: 15px;
    overflow: hidden;
    color: var(--color-text-main);
}

.page-vip-program__faq-item summary {
    list-style: none; /* Hide default marker */
    padding: 20px 25px;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-weight: bold;
    font-size: 1.1em;
    color: var(--color-gold);
    background-color: var(--color-deep-green); /* Slightly different background for summary */
    border-bottom: 1px solid var(--color-divider);
    transition: background-color 0.3s ease;
}

.page-vip-program__faq-item summary:hover {
    background-color: var(--color-primary);
}

.page-vip-program__faq-item summary::-webkit-details-marker {
    display: none; /* Hide default marker for webkit browsers */
}

.page-vip-program__faq-qtext {
    flex-grow: 1;
}

.page-vip-program__faq-toggle {
    font-size: 1.5em;
    margin-left: 15px;
    line-height: 1;
}

.page-vip-program__faq-answer {
    padding: 20px 25px;
    font-size: 1em;
    color: var(--color-text-secondary);
}

.page-vip-program__faq-answer p {
    margin: 0;
}

/* Conclusion Section */
.page-vip-program__conclusion-section .page-vip-program__text-block {
    margin-bottom: 25px;
}


/* Responsive Design */
@media (max-width: 1024px) {
    .page-vip-program__main-title {
        font-size: clamp(2em, 4vw, 3em);
    }
    .page-vip-program__section-title {
        font-size: 2em;
    }
    .page-vip-program__hero-content {
        margin-top: -60px;
        padding: 30px 15px;
    }
}

@media (max-width: 768px) {
    .page-vip-program__container {
        padding: 0 15px;
    }

    .page-vip-program__hero-section {
        padding-bottom: 40px;
    }

    .page-vip-program__hero-content {
        margin-top: -40px;
        padding: 25px 15px;
    }

    .page-vip-program__main-title {
        font-size: clamp(1.8em, 6vw, 2.5em);
        margin-bottom: 15px;
    }

    .page-vip-program__description {
        font-size: 1em;
        margin-bottom: 20px;
    }

    /* Mobile button responsiveness */
    .page-vip-program__cta-button,
    .page-vip-program__btn-primary,
    .page-vip-program__btn-secondary,
    .page-vip-program a[class*="button"],
    .page-vip-program a[class*="btn"] {
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
        white-space: normal !important;
        word-wrap: break-word !important;
    }
    .page-vip-program__cta-button--large,
    .page-vip-program__cta-button--final {
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
        white-space: normal !important;
        word-wrap: break-word !important;
    }
    .page-vip-program__cta-buttons,
    .page-vip-program__button-group,
    .page-vip-program__btn-container {
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
        padding-left: 15px;
        padding-right: 15px;
        overflow: hidden !important;
        flex-wrap: wrap !important;
        gap: 10px;
    }
    .page-vip-program__cta-buttons {
        display: flex;
        flex-direction: column;
    }


    .page-vip-program__intro-section,
    .page-vip-program__levels-section,
    .page-vip-program__perks-section,
    .page-vip-program__join-section,
    .page-vip-program__faq-section,
    .page-vip-program__conclusion-section {
        padding: 40px 0;
    }

    .page-vip-program__section-title {
        font-size: 1.8em;
        margin-bottom: 20px;
    }

    .page-vip-program__text-block {
        font-size: 1em;
        text-align: center;
    }

    .page-vip-program__level-grid,
    .page-vip-program__perks-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .page-vip-program__level-card,
    .page-vip-program__perk-item,
    .page-vip-program__join-steps li {
        padding: 20px;
    }

    .page-vip-program__level-title {
        font-size: 1.5em;
    }

    .page-vip-program__perk-title {
        font-size: 1.3em;
    }

    .page-vip-program__step-number {
        font-size: 1.8em;
    }

    .page-vip-program__step-title {
        font-size: 1.2em;
    }

    .page-vip-program__faq-item summary {
        font-size: 1em;
        padding: 15px 20px;
    }
    .page-vip-program__faq-answer {
        padding: 15px 20px;
    }

    /* Mobile image responsiveness */
    .page-vip-program img {
        max-width: 100% !important;
        width: 100% !important;
        height: auto !important;
        display: block !important;
        min-width: 200px !important; /* Ensure minimum size is still enforced */
        min-height: 200px !important;
    }
    .page-vip-program__section,
    .page-vip-program__card,
    .page-vip-program__container,
    .page-vip-program__hero-image-wrapper,
    .page-vip-program__level-card,
    .page-vip-program__perk-item,
    .page-vip-program__join-steps li,
    .page-vip-program__faq-item {
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
        padding-left: 15px; /* Add padding to container elements to prevent edge-to-edge content */
        padding-right: 15px;
    }
    .page-vip-program__hero-section {
        padding-left: 0 !important; /* Hero section itself might not need padding, its content container does */
        padding-right: 0 !important;
    }
    .page-vip-program__hero-content {
        padding-left: 15px !important;
        padding-right: 15px !important;
    }
    .page-vip-program__hero-section {
        padding-top: 10px !important; /* Small top padding for hero section */
    }
    .page-vip-program__video-section { /* Placeholder for video section if it existed */
        padding-top: 10px !important;
    }
}

/* Ensure all images are content images and meet minimum size */
.page-vip-program img {
    min-width: 200px;
    min-height: 200px;
    object-fit: cover;
}

/* No CSS filters on images */
.page-vip-program img {
    filter: none;
}