/* style/support.css */

/* Biến CSS */
:root {
    --primary-color: #0A192F;
    --secondary-color: #FFD700;
    --text-light: #ffffff;
    --text-dark: #333333;
    --card-bg-dark: rgba(255, 255, 255, 0.08);
    --card-bg-light: #ffffff;
    --border-color: #e0e0e0;
}

/* Căn chỉnh tổng thể cho trang */
.page-support {
    font-family: Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-light); /* Mặc định chữ sáng vì body background là tối */
    background-color: var(--primary-color);
}

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

/* Các phần nền tối/sáng */
.page-support__dark-bg {
    background-color: var(--primary-color);
    color: var(--text-light);
}

.page-support__light-bg {
    background-color: var(--card-bg-light);
    color: var(--text-dark);
}

/* Tiêu đề và mô tả phần */
.page-support__section-title {
    font-size: 2.5em;
    margin-bottom: 20px;
    text-align: center;
    color: inherit;
}

.page-support__section-description {
    font-size: 1.1em;
    text-align: center;
    max-width: 800px;
    margin: 0 auto 40px;
    color: inherit;
}

/* Nút chính/phụ */
.page-support__btn-primary,
.page-support__btn-secondary {
    display: inline-block;
    padding: 12px 25px;
    border-radius: 5px;
    text-decoration: none;
    font-weight: bold;
    transition: background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease;
    text-align: center;
    cursor: pointer;
    box-sizing: border-box;
}

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

.page-support__btn-primary:hover {
    background-color: darken(var(--secondary-color), 10%);
    border-color: darken(var(--secondary-color), 10%);
}

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

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

/* Hero Section */
.page-support__hero-section {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 80px 20px;
    padding-top: var(--header-offset, 120px); /* Đảm bảo không bị header che */
    min-height: 60vh;
    position: relative;
    overflow: hidden;
}

.page-support__hero-content {
    position: relative;
    z-index: 2;
    max-width: 900px;
}

.page-support__hero-title {
    font-size: 3.5em;
    margin-bottom: 20px;
    color: var(--secondary-color);
}

.page-support__hero-description {
    font-size: 1.3em;
    margin-bottom: 40px;
    color: var(--text-light);
}

.page-support__hero-image-wrapper {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    opacity: 0.3;
}

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

/* Channels Section */
.page-support__channels-section {
    padding: 80px 0;
}

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

.page-support__channel-card {
    background-color: var(--card-bg-light);
    color: var(--text-dark);
    padding: 30px;
    border-radius: 10px;
    text-align: center;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

.page-support__channel-card:hover {
    transform: translateY(-5px);
}

.page-support__channel-icon {
    width: 100%;
    height: 200px;
    object-fit: cover;
    margin-bottom: 20px;
    border-radius: 8px;
}

.page-support__channel-title {
    font-size: 1.8em;
    margin-bottom: 15px;
    color: var(--primary-color);
}

.page-support__channel-text {
    font-size: 1em;
    margin-bottom: 20px;
}

/* FAQ Section */
.page-support__faq-section {
    padding: 80px 0;
}

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

.page-support__faq-item {
    background-color: var(--card-bg-dark);
    border-radius: 8px;
    margin-bottom: 15px;
    overflow: hidden;
    transition: background-color 0.3s ease;
}

.page-support__faq-item:hover {
    background-color: rgba(255, 255, 255, 0.12);
}

.page-support__faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px;
    cursor: pointer;
    font-size: 1.2em;
    font-weight: bold;
    color: var(--text-light);
}

.page-support__faq-toggle {
    font-size: 1.5em;
    line-height: 1;
    transition: transform 0.3s ease;
}

.page-support__faq-item.active .page-support__faq-toggle {
    transform: rotate(45deg);
}

.page-support__faq-answer {
    max-height: 0;
    overflow: hidden;
    padding: 0 20px;
    transition: max-height 0.3s ease, padding 0.3s ease;
    color: var(--text-light);
}

.page-support__faq-item.active .page-support__faq-answer {
    max-height: 1000px !important; /* Đủ lớn để chứa mọi nội dung */
    padding: 15px 20px 20px;
}

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

.page-support__faq-cta-wrapper {
    text-align: center;
    margin-top: 40px;
}

/* Video Section */
.page-support__video-section {
    padding: 80px 0;
}

.page-support__video-wrapper {
    position: relative;
    padding-bottom: 56.25%; /* 16:9 Aspect Ratio */
    height: 0;
    overflow: hidden;
    max-width: 900px;
    margin: 40px auto 20px;
    border-radius: 10px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
}

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

.page-support__video-cta-wrapper {
    text-align: center;
    margin-top: 30px;
}

/* Contact Form Section */
.page-support__contact-form-section {
    padding: 80px 0;
}

.page-support__contact-form {
    max-width: 700px;
    margin: 40px auto 0;
    background-color: var(--card-bg-dark);
    padding: 40px;
    border-radius: 10px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.page-support__form-group {
    margin-bottom: 20px;
}

.page-support__form-label {
    display: block;
    margin-bottom: 8px;
    font-weight: bold;
    color: var(--text-light);
}

.page-support__form-input,
.page-support__form-textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: 5px;
    background-color: rgba(0, 0, 0, 0.2);
    color: var(--text-light);
    font-size: 1em;
    box-sizing: border-box;
}

.page-support__form-input::placeholder,
.page-support__form-textarea::placeholder {
    color: rgba(255, 255, 255, 0.6);
}

.page-support__form-input:focus,
.page-support__form-textarea:focus {
    outline: none;
    border-color: var(--secondary-color);
    box-shadow: 0 0 0 2px rgba(var(--secondary-color), 0.5);
}

.page-support__contact-form .page-support__btn-primary {
    width: 100%;
    padding: 15px;
    font-size: 1.1em;
}

/* Commitment Section */
.page-support__commitment-section {
    padding: 80px 0;
    text-align: center;
}

.page-support__commitment-image {
    width: 100%;
    max-width: 700px;
    height: auto;
    margin-top: 40px;
    border-radius: 10px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

/* Responsive Design */
@media (max-width: 1024px) {
    .page-support__hero-title {
        font-size: 3em;
    }
    .page-support__section-title {
        font-size: 2em;
    }
}

@media (max-width: 768px) {
    .page-support {
        font-size: 16px;
        line-height: 1.6;
    }
    .page-support__hero-section {
        padding: 60px 15px;
        padding-top: var(--header-offset, 120px) !important; /* Mobile header offset */
    }
    .page-support__hero-title {
        font-size: 2.5em;
    }
    .page-support__hero-description {
        font-size: 1em;
    }
    .page-support__section-title {
        font-size: 1.8em;
    }
    .page-support__section-description {
        font-size: 0.95em;
        margin-bottom: 30px;
    }
    .page-support__channels-grid {
        grid-template-columns: 1fr;
    }
    .page-support__channel-card,
    .page-support__faq-item,
    .page-support__contact-form {
        padding: 20px 15px;
    }

    /* Mobile image responsiveness */
    .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,
    .page-support__hero-image-wrapper,
    .page-support__video-wrapper,
    .page-support__video-section,
    .page-support__contact-form-section,
    .page-support__commitment-section {
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
        padding-left: 15px;
        padding-right: 15px;
        overflow: hidden !important; /* Prevent horizontal scroll */
    }

    /* 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-wrapper {
        padding-bottom: 56.25% !important; /* Maintain aspect ratio */
        height: auto !important;
    }
    .page-support__video-section {
        padding-top: var(--header-offset, 120px) !important;
    }

    /* Mobile button responsiveness */
    .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-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__hero-content .page-support__btn-primary {
        margin: 0 auto;
    }
}

@media (max-width: 480px) {
    .page-support__hero-title {
        font-size: 2em;
    }
    .page-support__section-title {
        font-size: 1.5em;
    }
}