/* style/support.css */
/* body đã padding-top: var(--header-offset) từ shared.css; trang này không cần lặp lại */

: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-support {
    font-family: Arial, sans-serif;
    line-height: 1.6;
    color: var(--color-text-main); /* Mặc định cho toàn bộ nội dung chính */
    background-color: var(--color-background);
}

.page-support__hero-section {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 10px 0 60px 0; /* Chỉ 10px padding-top */
    background-color: var(--color-deep-green);
    overflow: hidden;
}

.page-support__hero-image-wrapper {
    width: 100%;
    max-height: 600px; /* Giới hạn chiều cao của ảnh */
    overflow: hidden;
    display: flex;
    justify-content: center;
    align-items: center;
}

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

.page-support__hero-content {
    position: relative;
    z-index: 10;
    max-width: 900px;
    text-align: center;
    padding: 30px 20px;
    margin-top: -100px; /* Kéo nội dung lên trên ảnh một chút */
    background: rgba(8, 22, 15, 0.85); /* Nền tối nhẹ để chữ nổi bật */
    border-radius: 10px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
    transform: translateY(-50px); /* Dịch chuyển nhẹ lên */
}

.page-support__main-title {
    font-size: clamp(2rem, 4vw, 3.5rem);
    font-weight: 700;
    color: var(--color-gold);
    margin-bottom: 15px;
    line-height: 1.2;
    text-shadow: 0 0 10px rgba(242, 193, 78, 0.5);
}

.page-support__hero-description {
    font-size: 1.15rem;
    color: var(--color-text-main);
    margin-bottom: 30px;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.page-support__cta-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
}

.page-support__btn-primary,
.page-support__btn-secondary,
.page-support__btn-link {
    display: inline-block;
    padding: 14px 30px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 700;
    font-size: 1.1rem;
    transition: all 0.3s ease;
    cursor: pointer;
    white-space: normal; /* Cho phép xuống dòng */
    word-wrap: break-word; /* Ngắt từ khi quá dài */
    box-sizing: border-box;
    max-width: 100%;
}

.page-support__btn-primary {
    background: var(--color-button-gradient);
    color: #ffffff;
    border: none;
    box-shadow: 0 4px 15px rgba(42, 209, 111, 0.4);
}

.page-support__btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(42, 209, 111, 0.6);
}

.page-support__btn-secondary {
    background: transparent;
    color: var(--color-primary);
    border: 2px solid var(--color-primary);
    box-shadow: 0 4px 15px rgba(17, 168, 78, 0.2);
}

.page-support__btn-secondary:hover {
    background: var(--color-primary);
    color: #ffffff;
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(17, 168, 78, 0.4);
}

.page-support__section-title {
    font-size: clamp(1.8rem, 3.5vw, 2.8rem);
    font-weight: 700;
    color: var(--color-gold);
    text-align: center;
    margin-bottom: 20px;
    margin-top: 60px;
    text-shadow: 0 0 8px rgba(242, 193, 78, 0.4);
}

.page-support__section-description {
    font-size: 1.1rem;
    color: var(--color-text-secondary);
    text-align: center;
    max-width: 800px;
    margin: 0 auto 40px auto;
}

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

.page-support__contact-section,
.page-support__payment-section,
.page-support__security-section {
    padding: 80px 0;
    background-color: var(--color-background);
}

.page-support__guide-section,
.page-support__faq-section,
.page-support__feedback-section {
    padding: 80px 0;
    background-color: var(--color-card-bg);
}

.page-support__dark-section {
    background-color: var(--color-card-bg);
}

.page-support__text-main {
    color: var(--color-text-main);
}

.page-support__text-secondary {
    color: var(--color-text-secondary);
}

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

.page-support__contact-card,
.page-support__payment-item,
.page-support__security-card,
.page-support__guide-card {
    background-color: var(--color-card-bg);
    border: 1px solid var(--color-border);
    border-radius: 10px;
    padding: 30px;
    text-align: center;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.page-support__contact-card:hover,
.page-support__payment-item:hover,
.page-support__security-card:hover,
.page-support__guide-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
}

.page-support__contact-icon,
.page-support__payment-icon,
.page-support__security-icon {
    width: 100%;
    height: auto;
    max-width: 200px; /* Đảm bảo ảnh không quá nhỏ */
    min-width: 200px; /* Đảm bảo ảnh không quá nhỏ */
    object-fit: contain;
    margin-bottom: 20px;
    display: block;
    margin-left: auto;
    margin-right: auto;
}

.page-support__guide-image {
    width: 100%;
    height: 250px; /* Cố định chiều cao cho ảnh hướng dẫn */
    object-fit: cover;
    border-radius: 8px;
    margin-bottom: 20px;
}

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

.page-support__card-text,
.page-support__item-text {
    font-size: 1rem;
    color: var(--color-text-secondary);
    margin-bottom: 20px;
}

.page-support__btn-link {
    background: var(--color-primary);
    color: #ffffff;
    padding: 10px 20px;
    border-radius: 5px;
    font-size: 0.95rem;
    font-weight: 600;
    text-decoration: none;
}

.page-support__btn-link:hover {
    background: var(--color-secondary);
}

.page-support__guide-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.page-support__faq-list {
    max-width: 900px;
    margin: 40px auto 0 auto;
}

.page-support__faq-item {
    background-color: var(--color-deep-green);
    border: 1px solid var(--color-border);
    border-radius: 8px;
    margin-bottom: 15px;
    overflow: hidden;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.page-support__faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 18px 25px;
    cursor: pointer;
    font-size: 1.15rem;
    font-weight: 600;
    color: var(--color-text-main);
    background-color: var(--color-deep-green);
    transition: background-color 0.3s ease;
}

.page-support__faq-question:hover {
    background-color: var(--color-primary);
}

.page-support__faq-item[open] > .page-support__faq-question {
    background-color: var(--color-primary);
    color: #ffffff;
}

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

.page-support__faq-toggle {
    font-size: 1.5rem;
    line-height: 1;
    margin-left: 15px;
    color: var(--color-text-secondary);
}

.page-support__faq-item[open] > .page-support__faq-question .page-support__faq-toggle {
    color: #ffffff;
}

.page-support__faq-answer {
    padding: 15px 25px 25px 25px;
    font-size: 1rem;
    color: var(--color-text-secondary);
    background-color: var(--color-card-bg);
    border-top: 1px solid var(--color-border);
}

.page-support__faq-answer p {
    margin-bottom: 0;
}

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

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

.page-support__faq-more-btn {
    display: block;
    margin: 40px auto 0 auto;
    max-width: 300px;
    text-align: center;
}

.page-support__feedback-content {
    max-width: 800px;
    margin: 40px auto 0 auto;
    text-align: center;
    background-color: var(--color-deep-green);
    padding: 40px;
    border-radius: 10px;
    border: 1px solid var(--color-border);
}

.page-support__feedback-content p {
    font-size: 1.1rem;
    margin-bottom: 30px;
}

/* --- Responsive Design --- */
@media (max-width: 1024px) {
    .page-support__hero-content {
        margin-top: -80px;
        transform: translateY(-30px);
    }
    .page-support__main-title {
        font-size: clamp(2rem, 5vw, 3rem);
    }
    .page-support__section-title {
        font-size: clamp(1.6rem, 4vw, 2.4rem);
    }
    .page-support__hero-image-wrapper {
        max-height: 500px;
    }
}

@media (max-width: 768px) {
    .page-support__hero-section {
        padding-bottom: 40px;
    }
    .page-support__hero-image-wrapper {
        max-height: 350px;
    }
    .page-support__hero-content {
        margin-top: -60px;
        transform: translateY(-20px);
        padding: 25px 15px;
    }
    .page-support__main-title {
        font-size: clamp(1.8rem, 6vw, 2.5rem);
    }
    .page-support__hero-description {
        font-size: 1rem;
        margin-bottom: 25px;
    }
    .page-support__cta-buttons {
        flex-direction: column;
        gap: 15px;
    }

    .page-support__btn-primary,
    .page-support__btn-secondary,
    .page-support__btn-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;
        text-align: center;
    }

    .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; /* Đảm bảo các nút wrap */
        gap: 10px;
    }

    .page-support__section-title {
        font-size: clamp(1.5rem, 5vw, 2rem);
        margin-top: 40px;
    }
    .page-support__section-description {
        font-size: 0.95rem;
        margin-bottom: 30px;
    }
    .page-support__contact-section,
    .page-support__payment-section,
    .page-support__security-section,
    .page-support__guide-section,
    .page-support__faq-section,
    .page-support__feedback-section {
        padding: 50px 0;
    }
    .page-support__contact-grid,
    .page-support__payment-grid,
    .page-support__security-grid,
    .page-support__guide-grid {
        grid-template-columns: 1fr;
        gap: 25px;
    }
    .page-support__contact-card,
    .page-support__payment-item,
    .page-support__security-card,
    .page-support__guide-card {
        padding: 25px;
    }
    .page-support__faq-question {
        font-size: 1rem;
        padding: 15px 20px;
    }
    .page-support__faq-answer {
        padding: 10px 20px 20px 20px;
    }
    .page-support__feedback-content {
        padding: 30px;
    }
    .page-support__feedback-content p {
        font-size: 1rem;
    }

    /* Global image responsive rules for content area */
    .page-support img {
        max-width: 100% !important;
        width: 100% !important;
        height: auto !important;
        display: block !important;
    }

    .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-x: hidden; /* Ngăn chặn tràn ngang */
    }

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

@media (max-width: 480px) {
    .page-support__hero-content {
        margin-top: -40px;
        transform: translateY(-10px);
    }
    .page-support__hero-image-wrapper {
        max-height: 250px;
    }
    .page-support__main-title {
        font-size: clamp(1.5rem, 7vw, 2.2rem);
    }
    .page-support__hero-description {
        font-size: 0.9rem;
    }
    .page-support__section-title {
        font-size: clamp(1.3rem, 6vw, 1.8rem);
    }
    .page-support__contact-icon,
    .page-support__payment-icon,
    .page-support__security-icon {
        max-width: 150px;
        min-width: 150px;
    }
}

/* CSS cho details/summary */
details > summary {
    list-style: none;
}
details > summary::-webkit-details-marker {
    display: none;
}