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

.page-support {
    font-family: 'Arial', sans-serif;
    color: var(--text-main); /* Default text color for dark sections */
    background-color: var(--bg-main);
}

.page-support__dark-bg {
    background-color: var(--bg-main);
    color: var(--text-main);
}

.page-support__light-bg {
    background-color: #ffffff;
    color: #333333; /* Dark text for light background */
}

.page-support__hero-section {
    position: relative;
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 10px 0 60px 0; /* Small top padding, more bottom padding */
    overflow: hidden;
}

.page-support__hero-image-wrapper {
    width: 100%;
    position: relative;
    z-index: 1;
}

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

.page-support__hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 900px;
    padding: 20px;
    margin-top: -100px; /* Adjust to place content below image */
    background: rgba(0, 0, 0, 0.7); /* Semi-transparent background for readability */
    border-radius: 10px;
}

.page-support__main-title {
    font-size: clamp(2.5rem, 5vw, 3.5rem);
    color: var(--gold-color);
    margin-bottom: 15px;
    font-weight: 700;
    line-height: 1.2;
}

.page-support__hero-description {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 30px;
    line-height: 1.6;
}

.page-support__cta-button {
    display: inline-block;
    background: var(--button-gradient);
    color: var(--text-main);
    padding: 15px 30px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: bold;
    font-size: 1.1rem;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
}

.page-support__cta-button:hover {
    opacity: 0.9;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
}

.page-support__container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 60px 20px;
    box-sizing: border-box;
}

.page-support__section-title {
    font-size: clamp(2rem, 4vw, 3rem);
    text-align: center;
    margin-bottom: 40px;
    color: var(--gold-color);
    font-weight: 600;
}

.page-support__text-block {
    font-size: 1rem;
    line-height: 1.7;
    margin-bottom: 20px;
    text-align: justify;
    color: inherit;
}

.page-support__faq-section {
    padding-top: 60px;
    padding-bottom: 60px;
}

.page-support__faq-list {
    margin-top: 40px;
}

.page-support__faq-item {
    background-color: #f8f8f8; /* Light background for FAQ items */
    border: 1px solid #e0e0e0;
    border-radius: 8px;
    margin-bottom: 15px;
    overflow: hidden;
    transition: all 0.3s ease;
}

.page-support__faq-item.page-support__card {
    background-color: #f8f8f8; /* Ensures light background for card-like FAQ items */
    color: #333333;
}

.page-support__faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 18px 25px;
    font-size: 1.1rem;
    font-weight: bold;
    cursor: pointer;
    color: #333333;
    background-color: #e9e9e9;
    border-bottom: 1px solid #d0d0d0;
    user-select: none;
    transition: background-color 0.3s ease;
}

.page-support__faq-question:hover {
    background-color: #e0e0e0;
}

.page-support__faq-toggle {
    font-size: 1.5rem;
    line-height: 1;
    color: var(--primary-color);
}

.page-support__faq-item[open] > .page-support__faq-question .page-support__faq-toggle {
    content: '−';
}

.page-support__faq-answer {
    padding: 20px 25px;
    font-size: 1rem;
    line-height: 1.6;
    color: #555555;
}

.page-support__faq-item details > summary {
    list-style: none;
}

.page-support__faq-item details > summary::-webkit-details-marker {
    display: none;
}

.page-support__content-image {
    width: 100%;
    height: auto;
    display: block;
    margin: 40px auto 0 auto;
    border-radius: 10px;
    object-fit: cover;
}

.page-support__guides-section {
    padding-top: 60px;
    padding-bottom: 60px;
}

.page-support__guide-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.page-support__card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    padding: 30px;
    text-align: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    color: var(--text-main);
    box-sizing: border-box;
}

.page-support__card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
}

.page-support__card-title {
    font-size: 1.4rem;
    color: var(--gold-color);
    margin-bottom: 15px;
    font-weight: 600;
}

.page-support__card-description {
    font-size: 0.95rem;
    line-height: 1.6;
    color: var(--text-secondary);
    margin-bottom: 25px;
}

.page-support__card-link {
    display: inline-block;
    color: var(--secondary-color);
    text-decoration: none;
    font-weight: bold;
    position: relative;
}

.page-support__card-link::after {
    content: '';
    position: absolute;
    width: 100%;
    height: 2px;
    background-color: var(--secondary-color);
    bottom: -5px;
    left: 0;
    transform: scaleX(0);
    transform-origin: bottom right;
    transition: transform 0.3s ease-out;
}

.page-support__card-link:hover::after {
    transform: scaleX(1);
    transform-origin: bottom left;
}

.page-support__responsible-gaming-section {
    padding-top: 60px;
    padding-bottom: 60px;
}

.page-support__responsible-list {
    list-style: none;
    padding: 0;
    margin-top: 30px;
    font-size: 1rem;
    line-height: 1.8;
    color: #333333;
}

.page-support__responsible-list li {
    margin-bottom: 10px;
    position: relative;
    padding-left: 30px;
}

.page-support__responsible-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-weight: bold;
    font-size: 1.2rem;
}

.page-support__list-strong {
    color: #111111;
}

.page-support__cta-link {
    display: inline-block;
    margin-top: 30px;
    color: var(--primary-color);
    text-decoration: none;
    font-weight: bold;
    font-size: 1.1rem;
    border-bottom: 2px solid var(--primary-color);
    padding-bottom: 5px;
    transition: color 0.3s ease, border-color 0.3s ease;
}

.page-support__cta-link:hover {
    color: var(--secondary-color);
    border-color: var(--secondary-color);
}

.page-support__contact-section {
    padding-top: 60px;
    padding-bottom: 60px;
}

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

.page-support__video-section {
    padding-top: 10px;
    padding-bottom: 60px;
}

.page-support__video-wrapper {
    position: relative;
    width: 100%;
    padding-bottom: 56.25%; /* 16:9 Aspect Ratio */
    height: 0;
    overflow: hidden;
    margin: 40px auto;
    border-radius: 10px;
    max-width: 1200px;
    box-sizing: border-box;
}

.page-support__video {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border-radius: 10px;
    display: block;
    object-fit: cover;
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .page-support {
        font-size: 16px;
        line-height: 1.6;
    }

    .page-support__hero-section {
        padding: 10px 0 40px 0;
    }

    .page-support__hero-content {
        margin-top: -60px;
        padding: 15px;
    }

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

    .page-support__hero-description {
        font-size: 1rem;
    }

    .page-support__cta-button {
        padding: 12px 25px;
        font-size: 1rem;
    }

    .page-support__container {
        padding: 40px 15px;
    }

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

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

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

    .page-support__faq-answer {
        padding: 15px 20px;
        font-size: 0.9rem;
    }

    .page-support__guide-cards,
    .page-support__contact-methods {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .page-support__card {
        padding: 25px;
    }

    .page-support__card-title {
        font-size: 1.2rem;
    }

    .page-support__card-description {
        font-size: 0.9rem;
    }

    .page-support__responsible-list {
        font-size: 0.95rem;
    }

    .page-support__responsible-list li {
        padding-left: 25px;
    }

    .page-support__responsible-list li::before {
        font-size: 1rem;
    }

    /* Mobile image responsiveness */
    .page-support img {
        max-width: 100% !important;
        width: 100% !important;
        height: auto !important;
        display: block !important;
    }

    .page-support__hero-image-wrapper,
    .page-support__video-wrapper,
    .page-support__section,
    .page-support__card,
    .page-support__container {
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
        padding-left: 15px;
        padding-right: 15px;
        overflow: hidden !important;
    }

    /* Mobile video responsiveness */
    .page-support video,
    .page-support__video {
        max-width: 100% !important;
        width: 100% !important;
        height: auto !important;
        display: block !important;
    }

    .page-support__video-section {
        padding-top: 10px !important; /* body đã xử lý --header-offset */
    }

    /* Mobile button responsiveness */
    .page-support__cta-button,
    .page-support__card-link,
    .page-support a[class*="button"],
    .page-support a[class*="btn"] {
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
        white-space: normal !important;
        word-wrap: break-word !important;
        padding-left: 15px;
        padding-right: 15px;
    }

    .page-support__cta-buttons,
    .page-support__button-group,
    .page-support__btn-container {
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
        padding-left: 15px;
        padding-right: 15px;
        flex-wrap: wrap !important;
        gap: 10px;
    }

    .page-support__cta-buttons {
        display: flex;
        flex-direction: column;
    }
}

/* Desktop specific video width for flex item */
.page-support__video-wrapper {
    width: 100%; /* Ensure width is 100% for flex item */
}