/* style/ung-dung-di-dong.css */

:root {
    --primary-color: #C61F1F;
    --secondary-color: #E53030;
    --button-gradient: linear-gradient(180deg, #FFB04A 0%, #D86A14 100%);
    --card-bg: #2A1212;
    --main-bg: #140C0C;
    --text-main-color: #FFF1E8;
    --border-color: #6A1E1E;
    --gold-color: #F3C54D;
    --deep-red-color: #7E0D0D;
}

.page-ung-dung-di-dong {
    font-family: Arial, sans-serif;
    color: var(--text-main-color); /* Ensures text is visible on dark background */
    background-color: var(--main-bg);
    line-height: 1.6;
}

.page-ung-dung-di-dong__hero-section {
    display: flex;
    flex-direction: column; /* Image above text */
    align-items: center;
    padding-top: 10px; /* Small top padding, relying on body for header offset */
    padding-bottom: 40px;
    background: var(--deep-red-color);
    text-align: center;
}

.page-ung-di-dong__hero-image-wrapper {
    width: 100%;
    max-width: 1200px; /* Constrain image width on desktop */
    margin-bottom: 20px;
}

.page-ung-dung-di-dong__hero-image {
    width: 100%;
    height: auto;
    display: block;
    object-fit: cover; /* Desktop: cover */
    border-radius: 10px;
}

.page-ung-dung-di-dong__hero-content {
    max-width: 900px;
    padding: 0 20px;
}

.page-ung-dung-di-dong__main-title {
    font-size: clamp(2.5rem, 4vw, 3.5rem);
    font-weight: 700;
    margin-bottom: 15px;
    color: var(--gold-color);
    line-height: 1.2;
}

.page-ung-dung-di-dong__hero-description {
    font-size: 1.1rem;
    margin-bottom: 30px;
    color: var(--text-main-color);
}

.page-ung-dung-di-dong__cta-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
}

.page-ung-dung-di-dong__btn-primary,
.page-ung-dung-di-dong__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-sizing: border-box;
    white-space: normal;
    word-wrap: break-word;
}

.page-ung-dung-di-dong__btn-primary {
    background: var(--button-gradient);
    color: #ffffff;
    border: none;
}

.page-ung-dung-di-dong__btn-primary:hover {
    opacity: 0.9;
    transform: translateY(-2px);
}

.page-ung-dung-di-dong__btn-secondary {
    background: transparent;
    color: var(--gold-color);
    border: 2px solid var(--gold-color);
}

.page-ung-dung-di-dong__btn-secondary:hover {
    background: var(--gold-color);
    color: var(--deep-red-color);
}

.page-ung-dung-di-dong__section {
    padding: 60px 20px;
    text-align: center;
}

.page-ung-dung-di-dong__dark-bg {
    background-color: var(--main-bg);
    color: var(--text-main-color);
}

.page-ung-dung-di-dong__section-title {
    font-size: clamp(2rem, 3.5vw, 3rem);
    color: var(--gold-color);
    margin-bottom: 40px;
    font-weight: 700;
}

.page-ung-dung-di-dong__feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    max-width: 1200px;
    margin: 0 auto;
}

.page-ung-dung-di-dong__card {
    background-color: var(--card-bg);
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
    border: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.page-ung-dung-di-dong__card-image {
    width: 100%;
    max-width: 300px;
    height: auto;
    border-radius: 8px;
    margin-bottom: 20px;
    display: block;
}

.page-ung-dung-di-dong__card-title {
    font-size: 1.5rem;
    color: var(--gold-color);
    margin-bottom: 15px;
    font-weight: 600;
}

.page-ung-dung-di-dong__card-description {
    font-size: 1rem;
    color: var(--text-main-color);
}

.page-ung-dung-di-dong__download-methods {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    max-width: 1000px;
    margin: 0 auto 40px auto;
}

.page-ung-dung-di-dong__method-card {
    background-color: var(--card-bg);
    padding: 30px;
    border-radius: 10px;
    border: 1px solid var(--border-color);
    text-align: left;
}

.page-ung-dung-di-dong__method-title {
    font-size: 1.8rem;
    color: var(--gold-color);
    margin-bottom: 25px;
    font-weight: 600;
    text-align: center;
}

.page-ung-dung-di-dong__step-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.page-ung-dung-di-dong__step-list li {
    margin-bottom: 20px;
    font-size: 1.1rem;
    color: var(--text-main-color);
}

.page-ung-dung-di-dong__step-list li strong {
    color: var(--gold-color);
}

.page-ung-dung-di-dong__qr-code {
    width: 200px;
    height: 200px;
    display: block;
    margin: 20px auto;
    border: 5px solid #fff;
    border-radius: 5px;
}

.page-ung-dung-di-dong__cta-buttons--centered {
    margin-top: 40px;
}

.page-ung-dung-di-dong__features-app-section .page-ung-dung-di-dong__feature-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    max-width: 1200px;
    margin: 0 auto;
    text-align: left;
}

.page-ung-dung-di-dong__feature-item {
    background-color: var(--card-bg);
    padding: 25px;
    border-radius: 10px;
    border: 1px solid var(--border-color);
    display: flex;
    align-items: flex-start;
    gap: 15px;
}

.page-ung-dung-di-dong__feature-icon {
    width: 60px;
    height: 60px;
    flex-shrink: 0;
    object-fit: contain;
}

.page-ung-dung-di-dong__feature-heading {
    font-size: 1.4rem;
    color: var(--gold-color);
    margin-top: 0;
    margin-bottom: 10px;
    font-weight: 600;
}

.page-ung-dung-di-dong__feature-text {
    font-size: 1rem;
    color: var(--text-main-color);
}

.page-ung-dung-di-dong__games-section .page-ung-dung-di-dong__game-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 25px;
    max-width: 1200px;
    margin: 0 auto;
}

.page-ung-dung-di-dong__game-card {
    background-color: var(--card-bg);
    border-radius: 10px;
    overflow: hidden;
    text-decoration: none;
    color: var(--text-main-color);
    transition: transform 0.3s ease;
    border: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 15px;
}

.page-ung-dung-di-dong__game-card:hover {
    transform: translateY(-5px);
}

.page-ung-dung-di-dong__game-image {
    width: 100%;
    height: 200px; /* Fixed height for game images */
    object-fit: cover;
    border-radius: 8px;
    margin-bottom: 15px;
    display: block;
}

.page-ung-dung-di-dong__game-title {
    font-size: 1.3rem;
    color: var(--gold-color);
    font-weight: 600;
    margin: 0;
}

.page-ung-dung-di-dong__promotions-section .page-ung-dung-di-dong__promo-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    max-width: 1200px;
    margin: 0 auto;
}

.page-ung-dung-di-dong__promo-grid .page-ung-dung-di-dong__card-image {
    height: 200px; /* Fixed height for promo images */
    object-fit: cover;
}

.page-ung-dung-di-dong__btn-text {
    color: var(--gold-color);
    text-decoration: none;
    font-weight: 600;
    margin-top: 15px;
    display: inline-block;
    transition: color 0.3s ease;
}

.page-ung-dung-di-dong__btn-text:hover {
    color: var(--primary-color);
}

.page-ung-dung-di-dong__faq-list {
    max-width: 900px;
    margin: 0 auto;
    text-align: left;
}

.page-ung-dung-di-dong__faq-item {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    margin-bottom: 15px;
    overflow: hidden;
}

.page-ung-dung-di-dong__faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 25px;
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--gold-color);
    cursor: pointer;
    list-style: none; /* For details/summary */
}

.page-ung-dung-di-dong__faq-question::-webkit-details-marker {
    display: none;
}

.page-ung-dung-di-dong__faq-toggle {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--gold-color);
    margin-left: 15px;
}

.page-ung-dung-di-dong__faq-answer {
    padding: 0 25px 20px 25px;
    font-size: 1rem;
    color: var(--text-main-color);
    line-height: 1.7;
}

.page-ung-dung-di-dong__conclusion-section {
    padding-bottom: 80px;
}

.page-ung-dung-di-dong__conclusion-text {
    max-width: 800px;
    margin: 0 auto 40px auto;
    font-size: 1.1rem;
    color: var(--text-main-color);
}

.page-ung-dung-di-dong__footer {
    background-color: var(--deep-red-color);
    padding: 20px;
    text-align: center;
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.7);
}

/* --- Responsive Styles --- */

@media (max-width: 1024px) {
    .page-ung-dung-di-dong__hero-section {
        padding-bottom: 30px;
    }

    .page-ung-dung-di-dong__main-title {
        font-size: 2.8rem;
    }

    .page-ung-dung-di-dong__section-title {
        font-size: 2.5rem;
    }

    .page-ung-dung-di-dong__feature-grid,
    .page-ung-dung-di-dong__download-methods,
    .page-ung-dung-di-dong__features-app-section .page-ung-dung-di-dong__feature-list,
    .page-ung-dung-di-dong__game-grid,
    .page-ung-dung-di-dong__promo-grid {
        gap: 25px;
    }

    .page-ung-dung-di-dong__method-card {
        padding: 25px;
    }

    .page-ung-dung-di-dong__qr-code {
        width: 180px;
        height: 180px;
    }

    .page-ung-dung-di-dong__faq-question {
        font-size: 1.1rem;
        padding: 18px 20px;
    }
}

@media (max-width: 768px) {
    /* General images and containers */
    .page-ung-dung-di-dong img {
        max-width: 100% !important;
        width: 100% !important;
        height: auto !important;
    }
    .page-ung-dung-di-dong__section,
    .page-ung-dung-di-dong__card,
    .page-ung-dung-di-dong__container,
    .page-ung-dung-di-dong__download-methods,
    .page-ung-dung-di-dong__feature-grid,
    .page-ung-dung-di-dong__feature-list,
    .page-ung-dung-di-dong__game-grid,
    .page-ung-dung-di-dong__promo-grid,
    .page-ung-dung-di-dong__faq-list {
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
        padding-left: 15px;
        padding-right: 15px;
    }

    /* Hero Section */
    .page-ung-dung-di-dong__hero-section {
        flex-direction: column;
        padding-top: 10px !important;
        padding-bottom: 30px;
    }

    .page-ung-dung-di-dong__hero-image {
        object-fit: contain; /* Mobile: contain to prevent cropping */
        aspect-ratio: unset;
        max-height: none;
    }

    .page-ung-dung-di-dong__hero-content {
        padding: 0 15px;
    }

    .page-ung-dung-di-dong__main-title {
        font-size: 2rem;
        margin-top: 20px;
    }

    .page-ung-dung-di-dong__hero-description {
        font-size: 1rem;
    }

    /* Buttons and Button Containers */
    .page-ung-dung-di-dong__cta-buttons {
        flex-direction: column;
        gap: 15px;
    }
    .page-ung-dung-di-dong__btn-primary,
    .page-ung-dung-di-dong__btn-secondary {
        max-width: 100% !important;
        width: 100% !important;
        padding: 12px 20px !important;
        font-size: 1rem !important;
        white-space: normal !important;
        word-wrap: break-word !important;
    }
    .page-ung-dung-di-dong__cta-buttons--centered {
        padding-left: 15px;
        padding-right: 15px;
    }

    /* Section Titles */
    .page-ung-dung-di-dong__section-title {
        font-size: 1.8rem;
        margin-bottom: 30px;
    }

    /* Feature Grid (Cards) */
    .page-ung-dung-di-dong__feature-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .page-ung-dung-di-dong__card {
        padding: 25px;
    }

    .page-ung-dung-di-dong__card-title {
        font-size: 1.3rem;
    }

    /* Download Methods */
    .page-ung-dung-di-dong__download-methods {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    .page-ung-dung-di-dong__method-title {
        font-size: 1.5rem;
    }

    .page-ung-dung-di-dong__step-list li {
        font-size: 1rem;
    }

    .page-ung-dung-di-dong__qr-code {
        width: 150px;
        height: 150px;
    }

    /* App Features List */
    .page-ung-dung-di-dong__features-app-section .page-ung-dung-di-dong__feature-list {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .page-ung-dung-di-dong__feature-item {
        padding: 20px;
    }

    .page-ung-dung-di-dong__feature-icon {
        width: 50px;
        height: 50px;
    }

    .page-ung-dung-di-dong__feature-heading {
        font-size: 1.2rem;
    }

    /* Game Grid */
    .page-ung-dung-di-dong__games-section .page-ung-dung-di-dong__game-grid {
        grid-template-columns: 1fr 1fr; /* 2 columns on mobile */
        gap: 15px;
    }
    .page-ung-dung-di-dong__game-image {
        height: 150px; /* Adjust height for mobile game images */
    }
    .page-ung-dung-di-dong__game-title {
        font-size: 1.1rem;
    }

    /* Promotions */
    .page-ung-dung-di-dong__promotions-section .page-ung-dung-di-dong__promo-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .page-ung-dung-di-dong__promo-grid .page-ung-dung-di-dong__card-image {
        height: 180px;
    }

    /* FAQ */
    .page-ung-dung-di-dong__faq-question {
        font-size: 1rem;
        padding: 15px 20px;
    }

    .page-ung-dung-di-dong__faq-answer {
        padding: 0 20px 15px 20px;
        font-size: 0.95rem;
    }

    /* Conclusion */
    .page-ung-dung-di-dong__conclusion-text {
        font-size: 1rem;
    }

    .page-ung-dung-di-dong__footer {
        padding: 15px;
        font-size: 0.8rem;
    }
}