/* style/about.css */

/* Biến CSS cho màu sắc */
:root {
    --page-about-primary-color: #017439;
    --page-about-secondary-color: #FFFFFF;
    --page-about-register-login-color: #C30808;
    --page-about-register-login-font-color: #FFFF00;
    --page-about-dark-background: #1a1a2e; /* body background from shared.css */
    --page-about-light-text: #ffffff;
    --page-about-dark-text: #333333;
}

.page-about {
    color: var(--page-about-light-text); /* Default text color for dark body background */
    line-height: 1.6;
    font-family: Arial, sans-serif;
}

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

.page-about__dark-section {
    background-color: var(--page-about-dark-background);
    color: var(--page-about-light-text);
    padding: 60px 0;
}

.page-about__light-bg {
    background-color: var(--page-about-secondary-color);
    color: var(--page-about-dark-text);
    padding: 60px 0;
}

.page-about__hero-section {
    position: relative;
    text-align: center;
    padding-top: var(--header-offset, 120px); /* Adjust for fixed header */
    padding-bottom: 60px;
}

.page-about__hero-title {
    font-size: 3.2em;
    margin-bottom: 20px;
    color: var(--page-about-register-login-font-color); /* Sử dụng màu vàng cho tiêu đề nổi bật */
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
}

.page-about__hero-description {
    font-size: 1.2em;
    margin-bottom: 40px;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
    color: var(--page-about-light-text);
}

.page-about__section-title {
    font-size: 2.5em;
    text-align: center;
    margin-bottom: 50px;
    color: inherit; /* Inherit from section, either light or dark */
}

.page-about__sub-title {
    font-size: 1.8em;
    margin-top: 30px;
    margin-bottom: 15px;
    color: inherit;
}

.page-about__text-block p {
    margin-bottom: 15px;
    line-height: 1.7;
    font-size: 1.1em;
}

.page-about__value-list {
    list-style: none;
    padding: 0;
    margin-bottom: 20px;
}

.page-about__value-list li {
    margin-bottom: 10px;
    position: relative;
    padding-left: 30px;
    font-size: 1.1em;
}

.page-about__value-list li::before {
    content: '✅';
    position: absolute;
    left: 0;
    color: var(--page-about-primary-color);
}

.page-about__cta-buttons {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-top: 30px;
}

.page-about__cta-buttons--center {
    margin-top: 50px;
}

.page-about__btn-primary,
.page-about__btn-secondary {
    display: inline-block;
    padding: 15px 30px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: bold;
    font-size: 1.1em;
    transition: background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease;
    box-sizing: border-box;
    text-align: center;
}

.page-about__btn-primary {
    background-color: var(--page-about-register-login-color); /* Màu đỏ cho đăng ký */
    color: var(--page-about-register-login-font-color); /* Màu vàng cho chữ */
    border: 2px solid var(--page-about-register-login-color);
}

.page-about__btn-primary:hover {
    background-color: #a30606;
    border-color: #a30606;
}

.page-about__btn-secondary {
    background-color: transparent;
    color: var(--page-about-register-login-font-color); /* Màu vàng cho chữ */
    border: 2px solid var(--page-about-register-login-color); /* Viền đỏ */
}

.page-about__btn-secondary:hover {
    background-color: var(--page-about-register-login-color);
    color: var(--page-about-register-login-font-color);
}

.page-about__content-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 40px;
    align-items: center;
}

.page-about__content-grid:nth-child(odd) .page-about__image-wrapper {
    order: 2;
}

.page-about__image-wrapper {
    text-align: center;
}

.page-about__image {
    max-width: 100%;
    height: auto;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
    display: block;
    margin: 0 auto;
}

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

.page-about__feature-card {
    background-color: rgba(255, 255, 255, 0.1);
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
    color: var(--page-about-light-text);
}

.page-about__feature-icon {
    width: 100px;
    height: auto;
    margin-bottom: 20px;
    border-radius: 5px;
}

.page-about__feature-title {
    font-size: 1.5em;
    margin-bottom: 15px;
    color: var(--page-about-register-login-font-color);
}

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

.page-about__commitment-item {
    background-color: var(--page-about-secondary-color);
    color: var(--page-about-dark-text);
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
}

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

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

.page-about__vision-item {
    background-color: var(--page-about-secondary-color);
    color: var(--page-about-dark-text);
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
}

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

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

.page-about__faq-item {
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    margin-bottom: 15px;
    overflow: hidden;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
}

.page-about__faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px;
    cursor: pointer;
    background-color: var(--page-about-primary-color);
    color: var(--page-about-light-text);
    font-weight: bold;
    font-size: 1.2em;
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
}

.page-about__faq-question:hover {
    background-color: #005f2e;
}

.page-about__faq-title {
    margin: 0;
    color: inherit;
    font-size: 1em;
}

.page-about__faq-toggle {
    font-size: 1.5em;
    line-height: 1;
    transition: transform 0.3s ease;
    color: var(--page-about-register-login-font-color); /* Màu vàng cho dấu +/- */
}

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

.page-about__faq-answer {
    max-height: 0;
    overflow: hidden;
    padding: 0 20px;
    transition: max-height 0.3s ease, padding 0.3s ease;
    background-color: rgba(255, 255, 255, 0.05);
    color: var(--page-about-light-text);
}

.page-about__faq-item.active .page-about__faq-answer {
    max-height: 1000px !important; /* Đảm bảo đủ cao để hiển thị nội dung */
    padding: 20px;
}

.page-about__faq-answer p {
    margin: 0;
    font-size: 1em;
}

.page-about__cta-section {
    text-align: center;
    padding-top: 60px;
    padding-bottom: 60px;
}

.page-about__cta-container {
    max-width: 800px;
}

.page-about__cta-text {
    font-size: 1.2em;
    margin-bottom: 40px;
    color: var(--page-about-dark-text);
}

/* Responsive Design */
@media (min-width: 769px) {
    .page-about__content-grid {
        grid-template-columns: 1fr 1fr;
    }
    .page-about__content-grid:nth-child(odd) .page-about__text-block {
        order: 2;
    }
    .page-about__content-grid:nth-child(odd) .page-about__image-wrapper {
        order: 1;
    }
}

@media (max-width: 768px) {
    .page-about {
        font-size: 16px;
        line-height: 1.6;
    }

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

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

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

    .page-about__sub-title,
    .page-about__feature-title,
    .page-about__commitment-title,
    .page-about__vision-title {
        font-size: 1.4em;
    }

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

    .page-about__btn-primary,
    .page-about__btn-secondary {
        max-width: 100% !important;
        width: 100% !important;
        padding: 12px 20px;
        font-size: 1em;
        white-space: normal !important;
        word-wrap: break-word !important;
        box-sizing: border-box !important;
    }

    .page-about__container {
        padding: 0 15px;
    }

    .page-about__hero-section,
    .page-about__introduction-section,
    .page-about__why-choose-section,
    .page-about__commitment-section,
    .page-about__team-section,
    .page-about__vision-section,
    .page-about__faq-section,
    .page-about__cta-section {
        padding: 40px 0;
    }

    /* Mobile image and container responsive */
    .page-about img {
        max-width: 100% !important;
        width: 100% !important;
        height: auto !important;
        display: block !important;
    }
    
    .page-about__image-wrapper,
    .page-about__feature-card,
    .page-about__commitment-item,
    .page-about__vision-item,
    .page-about__faq-item,
    .page-about__cta-container {
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
        overflow: hidden !important;
        padding-left: 0;
        padding-right: 0;
    }

    .page-about__faq-question {
        font-size: 1.1em;
        padding: 15px;
    }

    .page-about__faq-answer {
        padding: 0 15px;
    }

    .page-about__faq-item.active .page-about__faq-answer {
        padding: 15px;
    }
}