/* style/nh.css */

/* --- Base Styles & Variables --- */
/* body đã padding-top: var(--header-offset) từ shared.css, không cần thêm ở đây */
.page-nh {
    font-family: 'Arial', sans-serif;
    color: var(--text-main); /* Default text color from custom palette */
    background-color: var(--background); /* Default background color from custom palette */
    line-height: 1.6;
    margin: 0;
    padding: 0;
    overflow-x: hidden; /* Prevent horizontal scroll */
}

/* Custom Color Variables */
:root {
    --primary-color: #11A84E;
    --secondary-color: #22C768;
    --button-gradient-start: #2AD16F;
    --button-gradient-end: #13994A;
    --card-bg: #11271B;
    --background: #08160F;
    --text-main: #F2FFF6;
    --text-secondary: #A7D9B8;
    --border-color: #2E7A4E;
    --glow-color: #57E38D;
    --gold-color: #F2C14E;
    --divider-color: #1E3A2A;
    --deep-green: #0A4B2C;
}

/* --- Layout Containers --- */
.page-nh__container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    box-sizing: border-box;
}

.page-nh__section {
    padding: 60px 0;
    text-align: center;
}

.page-nh__section:nth-of-type(even) {
    background-color: var(--deep-green); /* Example alternating background */
}

/* --- Typography --- */
.page-nh__main-title {
    font-size: clamp(2.5rem, 5vw, 3.5rem); /* Responsive H1 */
    color: var(--gold-color);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 20px;
    letter-spacing: 1px;
}

.page-nh__section-title {
    font-size: clamp(2rem, 4vw, 2.8rem);
    color: var(--text-main);
    font-weight: 600;
    margin-bottom: 40px;
    position: relative;
    padding-bottom: 15px;
}

.page-nh__section-title::after {
    content: '';
    position: absolute;
    left: 50%;
    bottom: 0;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background-color: var(--gold-color);
    border-radius: 2px;
}

.page-nh__subtitle {
    font-size: clamp(1rem, 2vw, 1.3rem);
    color: var(--text-secondary);
    margin-bottom: 30px;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.page-nh__text-block {
    font-size: 1.1rem;
    color: var(--text-main);
    margin-bottom: 20px;
    text-align: left;
}

.page-nh__card-title {
    font-size: 1.5rem;
    color: var(--gold-color);
    margin-bottom: 15px;
}

.page-nh__card-text {
    font-size: 1rem;
    color: var(--text-secondary);
}

.page-nh__list-item-title {
    font-size: 1.3rem;
    color: var(--text-main);
    margin-bottom: 10px;
    text-align: left;
}

/* --- Buttons --- */
.page-nh__cta-buttons {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-top: 30px;
    flex-wrap: wrap; /* Allow buttons to wrap on smaller screens */
}

.page-nh__btn-primary,
.page-nh__btn-secondary {
    display: inline-block;
    padding: 15px 30px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 700;
    font-size: 1.1rem;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
    max-width: 100%; /* Button responsiveness */
    box-sizing: border-box; /* Button responsiveness */
    white-space: normal; /* Button responsiveness */
    word-wrap: break-word; /* Button responsiveness */
}

.page-nh__btn-primary {
    background: var(--button-gradient-start); /* Fallback */
    background: linear-gradient(180deg, var(--button-gradient-start) 0%, var(--button-gradient-end) 100%);
    color: #ffffff; /* Always white text on green gradient */
    border: 2px solid transparent;
}

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

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

.page-nh__btn-secondary:hover {
    transform: translateY(-3px);
    background-color: var(--gold-color);
    color: var(--background);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
}

.page-nh__center-btn {
    margin-top: 40px;
    margin-left: auto;
    margin-right: auto;
    display: table; /* For centering block element with margin auto */
}

/* --- Hero Section --- */
.page-nh__hero-section {
    position: relative;
    width: 100%;
    display: flex;
    flex-direction: column; /* Image on top, content below */
    align-items: center;
    padding-bottom: 60px; /* Space below content */
    padding-top: 10px; /* Small top padding, body handles header offset */
    background-color: var(--background);
}

.page-nh__hero-image-wrapper {
    width: 100%;
    max-height: 70vh; /* Limit height for hero image */
    overflow: hidden;
    display: flex;
    justify-content: center;
    align-items: center;
    margin-bottom: 30px; /* Space between image and content */
}

.page-nh__hero-image {
    width: 100%;
    height: auto;
    display: block;
    object-fit: cover;
    min-height: 200px; /* Ensure minimum size */
}

.page-nh__hero-content {
    text-align: center;
    max-width: 900px;
    padding: 0 20px;
}

/* --- Image Styles --- */
.page-nh__image {
    max-width: 100%;
    height: auto;
    display: block;
    margin: 30px auto;
    border-radius: 10px;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
    min-width: 200px; /* Minimum image size */
    min-height: 200px; /* Minimum image size */
}

/* --- Card Styles --- */
.page-nh__card {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    padding: 25px;
    text-align: center;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
    display: flex;
    flex-direction: column;
    align-items: center;
    min-height: 200px; /* Minimum card image size */
    box-sizing: border-box;
}

.page-nh__card .page-nh__image {
    margin-top: 0;
    margin-bottom: 20px;
    border-radius: 8px;
    min-width: 200px; /* Card images must be large */
    min-height: 200px; /* Card images must be large */
    width: 100%; /* Ensure card images fill width */
    height: auto;
    object-fit: cover;
}


/* --- Grids --- */
.page-nh__features-grid,
.page-nh__game-types-grid,
.page-nh__tips-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 40px;
    margin-bottom: 40px;
}

/* --- List Styles --- */
.page-nh__steps-list {
    list-style: none;
    padding: 0;
    margin: 40px 0;
    text-align: left;
}

.page-nh__steps-list li {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 20px;
    margin-bottom: 15px;
    display: flex;
    flex-direction: column;
    gap: 10px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.page-nh__steps-list li:last-child {
    margin-bottom: 0;
}

/* --- FAQ Section --- */
.page-nh__faq-list {
    margin-top: 40px;
    text-align: left;
}

.page-nh__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, 0.1);
    color: var(--text-main);
}

.page-nh__faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 18px 25px;
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--text-main);
    cursor: pointer;
    background-color: var(--deep-green); /* Slightly different background for question */
    border-bottom: 1px solid var(--divider-color);
}

.page-nh__faq-item[open] .page-nh__faq-question {
    border-bottom: 1px solid var(--divider-color);
}

.page-nh__faq-qtext {
    flex-grow: 1;
}

.page-nh__faq-toggle {
    font-size: 1.8rem;
    line-height: 1;
    margin-left: 15px;
    transition: transform 0.3s ease;
    color: var(--gold-color);
}

.page-nh__faq-item[open] .page-nh__faq-toggle {
    transform: rotate(45deg); /* Rotate plus to cross */
}

.page-nh__faq-answer {
    padding: 15px 25px 20px;
    font-size: 1rem;
    color: var(--text-secondary);
    text-align: left;
}

.page-nh__faq-answer p {
    margin: 0;
}

/* Remove default details marker */
.page-nh__faq-item > summary {
    list-style: none;
}
.page-nh__faq-item > summary::-webkit-details-marker {
    display: none;
}


/* --- Final CTA Section --- */
.page-nh__final-cta {
    margin-top: 50px;
    margin-bottom: 0;
}

/* --- Responsive Adjustments --- */
@media (max-width: 1024px) {
    .page-nh__features-grid,
    .page-nh__game-types-grid,
    .page-nh__tips-grid {
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
        gap: 25px;
    }
}

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

    .page-nh__section {
        padding: 40px 0;
    }

    .page-nh__main-title {
        font-size: 2.2rem;
    }

    .page-nh__section-title {
        font-size: 1.8rem;
    }

    .page-nh__subtitle {
        font-size: 1rem;
    }

    .page-nh__text-block {
        font-size: 0.95rem;
    }

    .page-nh__cta-buttons {
        flex-direction: column;
        gap: 15px;
    }

    .page-nh__btn-primary,
    .page-nh__btn-secondary {
        max-width: 100% !important;
        width: 100% !important;
        padding: 12px 20px;
        font-size: 1rem;
        box-sizing: border-box !important;
        white-space: normal !important;
        word-wrap: break-word !important;
    }

    .page-nh__hero-section {
        padding-top: 10px !important; /* Ensure small padding, not header offset */
        padding-bottom: 40px;
    }

    /* Mobile image responsiveness */
    .page-nh img {
        max-width: 100% !important;
        width: 100% !important;
        height: auto !important;
        display: block !important;
        min-width: 200px !important; /* Enforce minimum size */
        min-height: 200px !important; /* Enforce minimum size */
        object-fit: cover; /* Ensure images fill space without distortion */
    }

    /* Mobile video responsiveness (if any, though not present in HTML draft) */
    .page-nh video {
        max-width: 100% !important;
        width: 100% !important;
        height: auto !important;
        display: block !important;
    }

    /* Containers for images/videos/buttons */
    .page-nh__hero-image-wrapper,
    .page-nh__container,
    .page-nh__cta-buttons,
    .page-nh__features-grid,
    .page-nh__game-types-grid,
    .page-nh__tips-grid {
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
        overflow: hidden !important; /* Prevent content overflow */
        padding-left: 15px; /* Add padding for content within containers */
        padding-right: 15px;
    }

    .page-nh__card .page-nh__image {
        min-width: 200px !important;
        min-height: 200px !important;
        width: 100% !important;
        height: auto !important;
    }
}

@media (max-width: 480px) {
    .page-nh__main-title {
        font-size: 1.8rem;
    }

    .page-nh__section-title {
        font-size: 1.5rem;
    }

    .page-nh__faq-question {
        font-size: 1rem;
        padding: 15px 20px;
    }

    .page-nh__faq-answer {
        padding: 10px 20px 15px;
    }
}