/* CSS cho trang Hỗ Trợ */

/* Biến màu */
:root {
    --page-support-primary-color: #2F6BFF;
    --page-support-secondary-color: #6FA3FF;
    --page-support-gradient-button: linear-gradient(180deg, #4A8BFF 0%, #2F6BFF 100%);
    --page-support-card-bg: #FFFFFF;
    --page-support-body-bg: #F4F7FB; /* Assumed from shared.css */
    --page-support-text-main: #1F2D3D;
    --page-support-text-dark: #000000;
    --page-support-border-color: #D6E2FF;
    --page-support-glow-color: #A5C4FF;
}

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

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

/* HERO Section */
.page-support__hero-section {
    padding-top: 10px; /* Small top padding, body handles --header-offset */
    background-color: var(--page-support-primary-color);
    color: #ffffff;
    position: relative;
    overflow: hidden;
}

.page-support__hero-content {
    position: relative; /* Ensure content is above image z-index if any */
    z-index: 2;
    text-align: center;
    padding: 60px 20px;
    max-width: 800px;
    margin: 0 auto;
}

.page-support__hero-image {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: 1;
    opacity: 0.3; /* Subtle background */
}

.page-support__main-title {
    font-size: clamp(2.5rem, 5vw, 3.5rem);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 20px;
    color: #ffffff;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.page-support__hero-description {
    font-size: 1.1rem;
    line-height: 1.6;
    margin-bottom: 30px;
    color: #f0f0f0;
}

/* General Section Styles */
.page-support__section-title {
    font-size: 2.2rem;
    font-weight: 700;
    color: var(--page-support-text-main);
    text-align: center;
    margin-bottom: 20px;
    padding-top: 40px;
}

.page-support__section-title--light {
    color: #ffffff;
}

.page-support__section-description {
    font-size: 1rem;
    line-height: 1.6;
    color: var(--page-support-text-main);
    text-align: center;
    max-width: 800px;
    margin: 0 auto 40px auto;
}

.page-support__section-description--light {
    color: #e0e0e0;
}

/* Card Styles */
.page-support__card {
    background-color: var(--page-support-card-bg);
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    padding: 30px;
    text-align: center;
    display: flex;
    flex-direction: column;
    height: 100%;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.page-support__card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

.page-support__card-image {
    width: 100%;
    max-width: 400px; /* Example for content image */
    height: 250px;
    object-fit: cover;
    border-radius: 8px;
    margin-bottom: 20px;
    display: block;
    margin-left: auto;
    margin-right: auto;
}

.page-support__card-title {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--page-support-text-main);
    margin-bottom: 15px;
}

.page-support__card-title--light {
    color: #ffffff;
}

.page-support__card-text {
    font-size: 0.95rem;
    line-height: 1.6;
    color: #555555;
    margin-bottom: 20px;
    flex-grow: 1;
}

.page-support__card-text--light {
    color: #cccccc;
}

.page-support__card--dark {
    background-color: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: #ffffff;
}

/* Button Styles */
.page-support__btn-primary,
.page-support__btn-secondary,
.page-support__btn-tertiary,
.page-support__btn-outline,
.page-support__btn-small {
    display: inline-block;
    padding: 12px 25px;
    border-radius: 30px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s ease;
    cursor: pointer;
    margin-top: auto; /* Push buttons to bottom of flex container */
    max-width: 100%;
    box-sizing: border-box;
    white-space: normal;
    word-wrap: break-word;
}

.page-support__btn-primary {
    background: var(--page-support-gradient-button);
    color: #ffffff;
    border: none;
    box-shadow: 0 5px 15px rgba(47, 107, 255, 0.3);
}

.page-support__btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(47, 107, 255, 0.4);
    opacity: 0.9;
}

.page-support__btn-secondary {
    background-color: var(--page-support-card-bg);
    color: var(--page-support-primary-color);
    border: 2px solid var(--page-support-primary-color);
}

.page-support__btn-secondary:hover {
    background-color: var(--page-support-primary-color);
    color: var(--page-support-card-bg);
}

.page-support__btn-tertiary {
    background-color: var(--page-support-secondary-color);
    color: #ffffff;
    border: none;
}

.page-support__btn-tertiary:hover {
    opacity: 0.9;
    transform: translateY(-2px);
}

.page-support__btn-outline {
    background: transparent;
    color: #ffffff;
    border: 2px solid #ffffff;
}

.page-support__btn-outline:hover {
    background: #ffffff;
    color: var(--page-support-primary-color);
}

.page-support__btn-small {
    padding: 8px 18px;
    font-size: 0.9rem;
    border-radius: 20px;
    background: var(--page-support-gradient-button);
    color: #ffffff;
    border: none;
}

.page-support__btn-small:hover {
    opacity: 0.9;
}

/* Contact Channels Section */
.page-support__contact-channels {
    padding: 60px 0;
    background-color: var(--page-support-body-bg);
}

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

/* FAQ Section */
.page-support__faq-section {
    padding: 60px 0;
    background-color: var(--page-support-primary-color);
}

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

.page-support__faq-item {
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 10px;
    margin-bottom: 15px;
    overflow: hidden;
    color: #ffffff;
}

.page-support__faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 25px;
    font-size: 1.15rem;
    font-weight: 600;
    cursor: pointer;
    background-color: rgba(255, 255, 255, 0.05);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    list-style: none; /* For details/summary */
}

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

.page-support__faq-item[open] .page-support__faq-question {
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
}

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

.page-support__faq-toggle {
    font-size: 1.5rem;
    font-weight: 700;
    margin-left: 20px;
    color: #ffffff;
}

.page-support__faq-item[open] .page-support__faq-toggle {
    content: '-';
    transform: rotate(180deg); /* Visual cue for open state */
}

.page-support__faq-answer {
    padding: 15px 25px 20px 25px;
    font-size: 1rem;
    line-height: 1.6;
    color: #f0f0f0;
}

.page-support__faq-answer p {
    margin-bottom: 15px;
    color: #f0f0f0;
}

.page-support__faq-answer .page-support__btn-small {
    margin-top: 10px;
}

/* Guides Section */
.page-support__guides-section {
    padding: 60px 0;
    background-color: var(--page-support-body-bg);
}

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

/* Policies Section */
.page-support__policies-section {
    padding: 60px 0;
    background-color: var(--page-support-primary-color);
}

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

.page-support__card--dark .page-support__card-image {
    height: 200px;
}

/* Final CTA Section */
.page-support__cta-final {
    padding: 60px 0;
    text-align: center;
    background-color: var(--page-support-body-bg);
}

.page-support__cta-final .page-support__section-title {
    padding-top: 0;
}

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

/* General responsive for images and containers */
.page-support img {
    max-width: 100%;
    height: auto;
    display: block;
}

.page-support__section,
.page-support__card,
.page-support__container,
.page-support__channels-grid,
.page-support__guides-grid,
.page-support__policies-grid {
    width: 100%;
    max-width: 100%;
    box-sizing: border-box;
    overflow: hidden;
}

/* @media (max-width: 768px) - Mobile specific styles */
@media (max-width: 768px) {
    .page-support__container {
        padding-left: 15px;
        padding-right: 15px;
    }

    /* HERO Section */
    .page-support__hero-section {
        padding-top: 10px; /* Small top padding for mobile */
    }

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

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

    /* Section Titles and Descriptions */
    .page-support__section-title {
        font-size: 1.8rem;
        padding-top: 30px;
    }

    .page-support__section-description {
        font-size: 0.95rem;
        margin-bottom: 30px;
    }

    /* Contact Channels Grid */
    .page-support__channels-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .page-support__card {
        padding: 20px;
    }

    .page-support__card-image {
        height: 200px;
    }

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

    .page-support__faq-answer {
        font-size: 0.95rem;
        padding: 10px 20px 15px 20px;
    }

    /* Guides Grid */
    .page-support__guides-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    /* Policies Grid */
    .page-support__policies-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    /* General Images and Containers (Mobile Specific) */
    .page-support img {
        max-width: 100% !important;
        width: 100% !important;
        height: auto !important;
    }
    
    .page-support__section,
    .page-support__card,
    .page-support__container,
    .page-support__channels-grid,
    .page-support__guides-grid,
    .page-support__policies-grid {
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
        padding-left: 15px;
        padding-right: 15px;
    }

    /* Button Responsive Styles (Mobile Specific) */
    .page-support__btn-primary,
    .page-support__btn-secondary,
    .page-support__btn-tertiary,
    .page-support__btn-outline,
    .page-support__btn-small,
    .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__hero-content .page-support__btn-primary {
        margin-left: auto;
        margin-right: auto;
        display: block;
    }

    /* If multiple buttons in a row, make them stack */
    .page-support__channels-grid .page-support__card .page-support__btn-secondary,
    .page-support__guides-grid .page-support__card .page-support__btn-tertiary,
    .page-support__policies-grid .page-support__card .page-support__btn-outline {
        display: block;
        margin-left: auto;
        margin-right: auto;
    }

    .page-support__faq-answer .page-support__btn-small {
        display: block;
        margin-left: auto;
        margin-right: auto;
    }

    .page-support__cta-final .page-support__btn-primary {
        display: block;
        margin-left: auto;
        margin-right: auto;
    }
}