/* style/support.css */

/* Biến CSS */
:root {
    --primary-color: #017439;
    --secondary-color: #FFFFFF;
    --text-dark: #333333;
    --text-light: #FFFFFF;
    --background-light: #FFFFFF;
    --background-dark: #017439;
    --button-register: #C30808;
    --button-login: #C30808;
    --font-register-login: #FFFF00;
}

.page-support {
    font-family: Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-dark); /* Mặc định cho nền sáng */
    background-color: var(--background-light);
}

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

.page-support__dark-section {
    background-color: var(--background-dark);
    color: var(--text-light);
    padding: 80px 0;
}

.page-support__light-bg {
    background-color: var(--background-light);
    color: var(--text-dark);
    padding: 80px 0;
}

.page-support__hero-section {
    position: relative;
    padding-top: var(--header-offset, 120px); /* Đảm bảo không bị header che */
    text-align: center;
    padding-bottom: 80px;
}

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

.page-support__hero-description {
    font-size: 1.2em;
    max-width: 800px;
    margin: 0 auto 40px;
    color: var(--text-light);
}

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

.page-support__section-title {
    font-size: 2.5em;
    text-align: center;
    margin-bottom: 40px;
    color: var(--primary-color);
}

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

.page-support__text-block {
    font-size: 1.1em;
    margin-bottom: 30px;
    text-align: center;
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
}

.page-support__highlight {
    font-weight: bold;
    color: var(--primary-color);
}

.page-support__dark-section .page-support__highlight {
    color: var(--font-register-login); /* Màu vàng cho nổi bật trên nền xanh đậm */
}

.page-support__image-wrapper {
    text-align: center;
    margin-top: 40px;
    margin-bottom: 20px;
}

.page-support__image {
    max-width: 100%;
    height: auto;
    display: block;
    margin: 0 auto;
    border-radius: 8px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

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

.page-support__channel-card,
.page-support__guide-card {
    background-color: var(--background-light);
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    text-align: center;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    border: 1px solid #e0e0e0;
}

.page-support__card-image {
    width: 100%;
    height: 200px;
    object-fit: cover;
    border-radius: 4px;
    margin-bottom: 20px;
}

.page-support__card-title {
    font-size: 1.5em;
    margin-bottom: 15px;
    color: var(--primary-color);
}

.page-support__card-title a {
    color: var(--primary-color);
    text-decoration: none;
}

.page-support__card-title a:hover {
    text-decoration: underline;
}

.page-support__card-text {
    font-size: 1em;
    color: var(--text-dark);
    margin-bottom: 20px;
    flex-grow: 1;
}

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

.page-support__faq-item {
    background-color: var(--background-light);
    border: 1px solid #e0e0e0;
    border-radius: 8px;
    margin-bottom: 15px;
    overflow: hidden;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.page-support__faq-item summary {
    list-style: none;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px;
    font-size: 1.1em;
    font-weight: bold;
    color: var(--primary-color);
    cursor: pointer;
    background-color: #f9f9f9;
    border-bottom: 1px solid #e0e0e0;
}

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

.page-support__faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
}

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

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

.page-support__faq-answer {
    padding: 20px;
    font-size: 1em;
    color: var(--text-dark);
    border-top: 1px solid #eee;
    background-color: var(--background-light);
}

.page-support__feedback-form {
    max-width: 700px;
    margin: 40px auto 0;
    padding: 40px;
    background-color: var(--background-light);
    border-radius: 8px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    border: 1px solid #e0e0e0;
}

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

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

.page-support__form-input,
.page-support__form-textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-size: 1em;
    box-sizing: border-box;
}

.page-support__form-textarea {
    resize: vertical;
}

.page-support__btn-primary {
    display: inline-block;
    background-color: var(--button-register);
    color: var(--font-register-login);
    padding: 12px 25px;
    border-radius: 5px;
    text-decoration: none;
    font-weight: bold;
    transition: background-color 0.3s ease, transform 0.2s ease;
    border: none;
    cursor: pointer;
    font-size: 1em;
}

.page-support__btn-primary:hover {
    background-color: #a30606;
    transform: translateY(-2px);
}

.page-support__btn-secondary {
    display: inline-block;
    background-color: var(--secondary-color);
    color: var(--primary-color);
    padding: 12px 25px;
    border-radius: 5px;
    text-decoration: none;
    font-weight: bold;
    transition: background-color 0.3s ease, transform 0.2s ease;
    border: 2px solid var(--primary-color);
    cursor: pointer;
    font-size: 1em;
}

.page-support__btn-secondary:hover {
    background-color: #f0f0f0;
    transform: translateY(-2px);
}

.page-support__cta-section {
    text-align: center;
    padding: 100px 0;
}

.page-support__cta-title {
    font-size: 2.8em;
    margin-bottom: 20px;
    color: var(--text-light);
}

.page-support__cta-description {
    font-size: 1.2em;
    max-width: 800px;
    margin: 0 auto 40px;
    color: var(--text-light);
}

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

    .page-support__section-title {
        font-size: 2em;
    }

    .page-support__cta-title {
        font-size: 2.2em;
    }
}

@media (max-width: 768px) {
    .page-support__hero-section,
    .page-support__dark-section,
    .page-support__light-bg {
        padding: 60px 0;
    }

    .page-support__hero-title {
        font-size: 2.5em;
    }

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

    .page-support__hero-cta-buttons {
        flex-direction: column;
        gap: 15px;
    }

    .page-support__btn-primary,
    .page-support__btn-secondary {
        width: 100%;
        max-width: 300px; /* Giới hạn chiều rộng cho nút trên mobile */
        margin: 0 auto; /* Căn giữa nút */
        padding: 15px 20px;
        font-size: 1.1em;
        box-sizing: border-box !important;
        white-space: normal !important;
        word-wrap: break-word !important;
    }

    .page-support__section-title {
        font-size: 1.8em;
    }

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

    .page-support__channels-grid,
    .page-support__guides-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .page-support__card-title {
        font-size: 1.3em;
    }

    .page-support__faq-item summary {
        font-size: 1em;
        padding: 15px;
    }

    .page-support__faq-answer {
        padding: 15px;
    }

    .page-support__feedback-form {
        padding: 25px;
    }

    .page-support__cta-title {
        font-size: 1.8em;
    }

    .page-support__cta-description {
        font-size: 1em;
    }

    /* Mobile specific image and video rules */
    .page-support img {
        max-width: 100% !important;
        width: 100% !important;
        height: auto !important;
        display: block !important;
    }
    .page-support__image-wrapper,
    .page-support__channel-card,
    .page-support__guide-card,
    .page-support__feedback-form,
    .page-support__faq-list,
    .page-support__hero-cta-buttons {
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
        padding-left: 15px;
        padding-right: 15px;
        overflow: hidden !important;
    }

    .page-support__hero-section {
        padding-top: var(--header-offset, 120px) !important;
    }
}

@media (max-width: 480px) {
    .page-support__hero-title {
        font-size: 2em;
    }
    .page-support__section-title {
        font-size: 1.5em;
    }
    .page-support__cta-title {
        font-size: 1.6em;
    }
}