/* style/support.css */

/* Custom properties for colors from shared.css */
:root {
    --primary-color: #26A9E0; /* Main brand color */
    --secondary-color: #FFFFFF; /* Auxiliary color */
    --text-dark: #333333;
    --text-light: #ffffff;
    --background-light: #f9f9f9; /* A light background for sections */
    --background-dark: #1a1a1a; /* A darker background for contrast sections */
    --button-login: #EA7C07; /* Specific color for login buttons */
    --black: #000000;
}

/* Base styles for the page content */
.page-support {
    font-family: 'Arial', sans-serif;
    line-height: 1.6;
    color: var(--text-dark); /* Default text color for light backgrounds */
    background: var(--background-color, #ffffff); /* Inherit from shared, fallback to white */
}

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

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

.page-support__section-title {
    font-size: 36px;
    margin-bottom: 20px;
    color: var(--primary-color);
    font-weight: bold;
    text-transform: uppercase;
}

.page-support__paragraph {
    font-size: 18px;
    margin-bottom: 25px;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.8;
}

/* HERO Section */
.page-support__hero-section {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 60px 20px;
    padding-top: var(--header-offset, 120px); /* Ensure space for fixed header */
    background: linear-gradient(135deg, var(--primary-color), #4CAF50); /* Gradient with brand color */
    color: var(--text-light);
    overflow: hidden;
}

.page-support__hero-container {
    position: relative;
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 1; /* Ensure content is above any potential background overlays */
}

.page-support__hero-image {
    width: 100%;
    margin-bottom: 30px;
    max-width: 800px; /* Constrain image width */
}

.page-support__hero-image img {
    width: 100%;
    height: auto;
    max-width: 100%;
    display: block;
    border-radius: 12px;
    object-fit: cover;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.page-support__hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    width: 100%;
}

.page-support__hero-title {
    font-size: 48px;
    margin-bottom: 20px;
    color: var(--text-light);
    font-weight: 900;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
    line-height: 1.2;
}

.page-support__hero-description {
    font-size: 22px;
    margin-bottom: 40px;
    color: var(--text-light);
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
}

.page-support__cta-group {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap; /* Allow buttons to wrap on smaller screens */
}

.page-support__cta-button {
    display: inline-block;
    padding: 16px 45px;
    text-decoration: none;
    border-radius: 8px;
    font-size: 19px;
    font-weight: bold;
    transition: all 0.3s ease;
    cursor: pointer;
    box-sizing: border-box;
    max-width: 100%; /* Ensure responsiveness */
    white-space: normal; /* Allow text wrapping */
    word-wrap: break-word; /* Allow text wrapping */
}

.page-support__btn-primary {
    background: var(--button-login);
    color: var(--text-light);
    border: 2px solid var(--button-login);
}

.page-support__btn-primary:hover {
    background: #D46F06; /* Darker shade of #EA7C07 */
    border-color: #D46F06;
    transform: translateY(-3px);
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.3);
}

.page-support__btn-secondary {
    background: var(--primary-color);
    color: var(--text-light);
    border: 2px solid var(--primary-color);
}

.page-support__btn-secondary:hover {
    background: #2297CC; /* Darker shade of #26A9E0 */
    border-color: #2297CC;
    transform: translateY(-3px);
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.3);
}

/* Section Specific Styles */
.page-support__intro-section {
    background: var(--background-light);
    color: var(--text-dark);
}

.page-support__channels-section {
    background: var(--primary-color);
    color: var(--text-light);
}

.page-support__channels-section .page-support__section-title {
    color: var(--text-light);
}

.page-support__channels-section .page-support__paragraph {
    color: var(--text-light);
}

.page-support__channels-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    margin-top: 40px;
    max-width: 1200px;
    margin-left: auto;
    margin-right: auto;
}

.page-support__channel-card {
    background: rgba(255, 255, 255, 0.1);
    padding: 30px;
    border-radius: 12px;
    text-align: center;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.page-support__channel-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 25px rgba(0, 0, 0, 0.2);
}

.page-support__channel-icon {
    width: 150px;
    height: 150px;
    object-fit: contain;
    margin: 0 auto 25px;
    border-radius: 50%; /* Make icons circular */
    background: rgba(255, 255, 255, 0.15);
    padding: 15px;
}

.page-support__channel-title {
    font-size: 24px;
    margin-bottom: 15px;
    color: var(--text-light);
    font-weight: 700;
}

.page-support__channel-description {
    font-size: 16px;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 25px;
    flex-grow: 1; /* Push button to bottom */
}

.page-support__social-links {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-top: 20px;
}

.page-support__social-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: auto; /* Allow width to adjust for text */
    padding: 0 18px; /* Add horizontal padding */
    height: 45px;
    background: var(--text-light);
    color: var(--primary-color);
    border-radius: 25px; /* Make it more pill-shaped for text */
    font-size: 16px;
    font-weight: bold;
    text-decoration: none;
    transition: background-color 0.3s ease, color 0.3s ease;
}

.page-support__social-icon:hover {
    background: var(--button-login);
    color: var(--text-light);
}

.page-support__issues-section {
    background: var(--background-light);
    color: var(--text-dark);
}

.page-support__issues-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 40px;
    max-width: 1200px;
    margin-left: auto;
    margin-right: auto;
}

.page-support__issue-card {
    background: var(--secondary-color);
    padding: 30px;
    border-radius: 12px;
    text-align: left;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border: 1px solid #e0e0e0;
}

.page-support__issue-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 25px rgba(0, 0, 0, 0.15);
}

.page-support__issue-title {
    font-size: 22px;
    margin-bottom: 20px;
    color: var(--primary-color);
    font-weight: 700;
}

.page-support__issue-card ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.page-support__issue-card li {
    margin-bottom: 15px;
    font-size: 16px;
    color: var(--text-dark);
}

.page-support__issue-card li p {
    margin: 0;
    padding: 0;
}

.page-support__issue-card li strong {
    color: var(--primary-color);
}

/* FAQ Section */
.page-support__faq-section {
    background: var(--primary-color);
    color: var(--text-light);
}

.page-support__faq-section .page-support__section-title {
    color: var(--text-light);
}

.page-support__faq-section .page-support__paragraph {
    color: var(--text-light);
}

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

/* FAQ容器样式 */
.page-support__faq-item {
    margin-bottom: 15px;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

/* FAQ默认状态 - 答案隐藏 */
.page-support__faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), padding 0.4s ease, opacity 0.4s ease;
    padding: 0 25px;
    opacity: 0;
    color: var(--text-dark);
    text-align: left;
}

/* FAQ展开状态 - ⚠️ Sử dụng!important và đủ lớn max-height để đảm bảo có thể mở rộng */
.page-support__faq-item.active .page-support__faq-answer {
    max-height: 2000px !important; /* ⚠️ Sử dụng!important để đảm bảo ưu tiên, giá trị đủ lớn để chứa bất kỳ nội dung nào */
    padding: 25px !important;
    opacity: 1;
    background: var(--secondary-color);
    border-radius: 0 0 8px 8px;
}

/* Vấn đề kiểu dáng */
.page-support__faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 25px;
    background: var(--secondary-color);
    border: 1px solid #e0e0e0;
    border-radius: 8px;
    cursor: pointer;
    user-select: none;
    transition: background-color 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
    position: relative;
    color: var(--text-dark);
}

.page-support__faq-question:hover {
    background: #f5f5f5;
    border-color: #d0d0d0;
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.1);
}

.page-support__faq-question:active {
    background: #eeeeee;
}

/* Tiêu đề câu hỏi kiểu dáng */
.page-support__faq-question h3 {
    margin: 0;
    padding: 0;
    flex: 1;
    font-size: 18px;
    font-weight: 600;
    line-height: 1.5;
    pointer-events: none; /* Ngăn chặn thẻ h3 chặn sự kiện nhấp chuột */
    color: var(--primary-color);
}

/* Chuyển đổi biểu tượng */
.page-support__faq-toggle {
    font-size: 28px;
    font-weight: bold;
    line-height: 1;
    color: var(--primary-color);
    transition: transform 0.3s ease, color 0.3s ease;
    flex-shrink: 0;
    margin-left: 15px;
    pointer-events: none; /* Ngăn chặn biểu tượng chặn sự kiện nhấp chuột */
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
}

.page-support__faq-item.active .page-support__faq-toggle {
    color: var(--button-login); /* Thay đổi màu khi hoạt động */
    transform: rotate(45deg); /* Tùy chọn: xoay để tạo hiệu ứng 'x' */
}

/* Tips Section */
.page-support__tips-section {
    background: var(--background-light);
    color: var(--text-dark);
}

.page-support__tips-list {
    list-style: none;
    padding: 0;
    margin: 40px auto 0;
    max-width: 800px;
    text-align: left;
}

.page-support__tips-list li {
    background: var(--secondary-color);
    padding: 20px 25px;
    margin-bottom: 15px;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    font-size: 17px;
    line-height: 1.7;
    border-left: 5px solid var(--primary-color);
}

.page-support__tips-list li strong {
    color: var(--primary-color);
    font-weight: 700;
}

/* Contact CTA Section */
.page-support__contact-cta-section {
    background: linear-gradient(135deg, var(--primary-color), var(--button-login)); /* Gradient for CTA */
    color: var(--text-light);
    padding: 80px 20px;
}

.page-support__contact-cta-content {
    max-width: 900px;
    margin: 0 auto;
}

.page-support__contact-cta-section .page-support__section-title {
    color: var(--text-light);
    margin-bottom: 25px;
}

.page-support__contact-cta-section .page-support__paragraph {
    color: var(--text-light);
    margin-bottom: 40px;
}


/* --- Responsive Design --- */

/* All images base responsive styles */
.page-support img {
    max-width: 100%;
    height: auto;
    display: block;
    object-fit: cover;
}

/* All buttons base responsive styles */
.page-support__cta-button,
.page-support__btn-primary,
.page-support__btn-secondary,
.page-support a[class*="button"],
.page-support a[class*="btn"] {
    max-width: 100%;
    box-sizing: border-box;
    white-space: normal;
    word-wrap: break-word;
}

/* Button containers base responsive styles */
.page-support__cta-group,
.page-support__button-group,
.page-support__btn-container {
    width: 100%;
    max-width: 100%;
    box-sizing: border-box;
    overflow: hidden;
}

@media (max-width: 1024px) {
    .page-support__hero-title {
        font-size: 40px;
    }
    .page-support__hero-description {
        font-size: 20px;
    }
    .page-support__section-title {
        font-size: 32px;
    }
    .page-support__paragraph {
        font-size: 17px;
    }
}

@media (max-width: 768px) {
    /* Mobile Hero Section */
    .page-support__hero-section {
        padding-top: var(--header-offset, 120px) !important; /* Mobile specific offset */
        padding-bottom: 40px;
        padding-left: 15px;
        padding-right: 15px;
    }
    .page-support__hero-title {
        font-size: 32px;
        margin-bottom: 15px;
    }
    .page-support__hero-description {
        font-size: 17px;
        margin-bottom: 30px;
    }
    .page-support__hero-image img {
        border-radius: 8px;
    }
    .page-support__cta-group {
        flex-direction: column; /* Stack buttons vertically */
        gap: 15px;
    }
    .page-support__cta-button {
        padding: 14px 30px;
        font-size: 17px;
        width: 100%; /* Full width for mobile buttons */
    }

    /* General Section Padding */
    .page-support__section {
        padding: 40px 0;
    }
    .page-support__container {
        padding: 0 15px;
    }
    .page-support__section-title {
        font-size: 28px;
        margin-bottom: 15px;
    }
    .page-support__paragraph {
        font-size: 16px;
    }

    /* Channels Grid */
    .page-support__channels-grid,
    .page-support__issues-grid {
        grid-template-columns: 1fr; /* Single column layout */
        gap: 20px;
    }
    .page-support__channel-card,
    .page-support__issue-card {
        padding: 25px;
    }
    .page-support__channel-icon {
        width: 120px;
        height: 120px;
        margin-bottom: 20px;
    }
    .page-support__channel-title {
        font-size: 20px;
    }
    .page-support__issue-title {
        font-size: 20px;
    }
    .page-support__issue-card li {
        font-size: 15px;
        margin-bottom: 10px;
    }

    /* FAQ Section */
    .page-support__faq-list {
        margin-top: 25px;
    }
    .page-support__faq-question {
        padding: 18px 20px;
    }
    .page-support__faq-question h3 {
        font-size: 16px;
    }
    .page-support__faq-toggle {
        font-size: 24px;
        width: 28px;
        height: 28px;
    }
    .page-support__faq-item.active .page-support__faq-answer {
        padding: 20px !important;
    }

    /* Tips Section */
    .page-support__tips-list {
        margin-top: 25px;
    }
    .page-support__tips-list li {
        padding: 18px 20px;
        font-size: 16px;
    }

    /* Contact CTA Section */
    .page-support__contact-cta-section {
        padding: 50px 15px;
    }
    .page-support__contact-cta-section .page-support__section-title {
        font-size: 26px;
    }
    .page-support__contact-cta-section .page-support__paragraph {
        font-size: 16px;
    }

    /* ⚠️ Mobile image responsive adaptation (must contain) */
    .page-support img {
        max-width: 100% !important;
        width: 100% !important;
        height: auto !important;
    }
    
    .page-support__section,
    .page-support__card,
    .page-support__container,
    .page-support__hero-container,
    .page-support__channels-grid,
    .page-support__issues-grid,
    .page-support__faq-list,
    .page-support__tips-list,
    .page-support__contact-cta-content {
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
        padding-left: 15px;
        padding-right: 15px;
    }

    /* ⚠️ Mobile button responsive adaptation (must contain) */
    .page-support__cta-button,
    .page-support__btn-primary,
    .page-support__btn-secondary,
    .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-group,
    .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-group {
        flex-direction: column; /* Force vertical stacking for CTA buttons on mobile */
    }
}