/* style/about.css */
/* Sử dụng màu sắc tùy chỉnh */
:root {
    --button-gradient: linear-gradient(180deg, #2AD16F 0%, #13994A 100%);
    --card-bg: #11271B;
    --background: #08160F;
    --text-main: #F2FFF6;
    --text-secondary: #A7D9B8;
    --border: #2E7A4E;
    --glow: #57E38D;
    --gold: #F2C14E;
    --divider: #1E3A2A;
    --deep-green: #0A4B2C;
}

/* Body background color comes from shared.css, assumed to be dark (var(--background-color)) */
/* Therefore, text color in main content area should be light */
.page-about {
    font-family: 'Arial', sans-serif;
    color: var(--text-main); /* Mặc định chữ sáng trên nền tối */
    background-color: var(--background); /* Nên được kế thừa từ body hoặc shared.css */
    line-height: 1.6;
}

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

/* Hero Section */
.page-about__hero-section {
    position: relative;
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 60px 20px;
    padding-top: 10px; /* Nhỏ để tránh double padding với body */
    background-color: var(--background); /* Nền tối cho hero */
    overflow: hidden;
}

.page-about__hero-image-wrapper {
    width: 100%;
    max-width: 100%;
    overflow: hidden;
    box-sizing: border-box;
}

.page-about__hero-image {
    width: 100%;
    height: auto;
    display: block;
    object-fit: cover;
}

.page-about__hero-content {
    text-align: center;
    padding: 40px 20px;
    max-width: 900px;
    margin-top: 20px;
    z-index: 1;
    color: var(--text-main);
}

.page-about__main-title {
    font-size: clamp(2.5rem, 5vw, 3.5rem);
    color: var(--gold);
    font-weight: 700;
    margin-bottom: 20px;
    line-height: 1.2;
    text-shadow: 0 0 10px rgba(242, 193, 78, 0.5);
}

.page-about__lead-text {
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-bottom: 30px;
}

.page-about__btn-primary,
.page-about__btn-secondary {
    display: inline-block;
    padding: 15px 30px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    white-space: normal;
    word-wrap: break-word;
    box-sizing: border-box;
    max-width: 100%;
}

.page-about__btn-primary {
    background: var(--button-gradient);
    color: #ffffff;
    border: none;
    box-shadow: 0 4px 15px rgba(42, 209, 111, 0.4);
}

.page-about__btn-primary:hover {
    opacity: 0.9;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(42, 209, 111, 0.6);
}

.page-about__btn-secondary {
    background: transparent;
    color: var(--glow);
    border: 2px solid var(--glow);
    margin-left: 15px;
}

.page-about__btn-secondary:hover {
    background: var(--glow);
    color: var(--background);
    transform: translateY(-2px);
}

/* General Section Styling */
.page-about__section-title {
    font-size: 2.5rem;
    color: var(--gold);
    text-align: center;
    margin-bottom: 40px;
    font-weight: 700;
    text-shadow: 0 0 8px rgba(242, 193, 78, 0.3);
}

.page-about__paragraph {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 20px;
    text-align: justify;
}

.page-about__dark-section {
    background-color: var(--background);
    color: var(--text-main);
}

.page-about__introduction-section,
.page-about__why-choose-us-section,
.page-about__commitment-section,
.page-about__cta-section {
    padding: 80px 0;
    background-color: var(--deep-green);
}

/* Mission Vision Section */
.page-about__mission-vision-section {
    padding: 80px 0;
}

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

.page-about__grid-two-col {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
    align-items: center;
}

.page-about__card {
    background-color: var(--card-bg);
    border-radius: 12px;
    padding: 30px;
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.3);
    border: 1px solid var(--border);
    color: var(--text-main);
}

.page-about__card-title {
    font-size: 1.8rem;
    color: var(--gold);
    margin-bottom: 15px;
    font-weight: 600;
}

.page-about__card-text {
    font-size: 1rem;
    color: var(--text-secondary);
}

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

.page-about__value-item {
    margin-bottom: 10px;
    color: var(--text-secondary);
}

.page-about__value-item strong {
    color: var(--text-main);
}

.page-about__image-wrapper {
    width: 100%;
    max-width: 100%;
    overflow: hidden;
    box-sizing: border-box;
}

.page-about__image {
    width: 100%;
    height: auto;
    display: block;
    border-radius: 12px;
    object-fit: cover;
}

/* Why Choose Us Section */
.page-about__features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.page-about__feature-item {
    text-align: center;
    padding: 30px;
}

.page-about__feature-title {
    font-size: 1.6rem;
    color: var(--gold);
    margin-bottom: 15px;
    font-weight: 600;
}

.page-about__feature-description {
    font-size: 1rem;
    color: var(--text-secondary);
    margin-bottom: 20px;
}

/* Team Section */
.page-about__team-section {
    padding: 80px 0;
}

.page-about__text-block {
    color: var(--text-secondary);
}

/* Commitment Section */
.page-about__commitment-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.page-about__commitment-item {
    text-align: center;
    padding: 30px;
}

.page-about__commitment-heading {
    font-size: 1.8rem;
    color: var(--gold);
    margin-bottom: 15px;
    font-weight: 600;
}

.page-about__commitment-text {
    font-size: 1rem;
    color: var(--text-secondary);
}

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

.page-about__faq-list {
    margin-top: 40px;
}

.page-about__faq-item {
    background-color: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 8px;
    margin-bottom: 15px;
    overflow: hidden;
}

.page-about__faq-item summary {
    list-style: none;
    cursor: pointer;
    padding: 20px 25px;
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--text-main);
    display: flex;
    justify-content: space-between;
    align-items: center;
    background-color: var(--deep-green);
    transition: background-color 0.3s ease;
}

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

.page-about__faq-item summary:hover {
    background-color: var(--border);
}

.page-about__faq-toggle {
    font-size: 1.5rem;
    font-weight: 700;
    line-height: 1;
    color: var(--gold);
}

.page-about__faq-item[open] .page-about__faq-toggle {
    content: '−';
}

.page-about__faq-answer {
    padding: 20px 25px;
    font-size: 1rem;
    color: var(--text-secondary);
    border-top: 1px solid var(--divider);
}

.page-about__cta-bottom {
    text-align: center;
    margin-top: 40px;
}

/* CTA Section */
.page-about__cta-section {
    text-align: center;
    padding: 80px 0;
    background-color: var(--deep-green);
}

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

/* Responsive Design */
@media (max-width: 1024px) {
    .page-about__grid-two-col {
        grid-template-columns: 1fr;
    }
    .page-about__hero-content {
        padding: 20px;
    }
    .page-about__main-title {
        font-size: clamp(2rem, 6vw, 3rem);
    }
}

@media (max-width: 768px) {
    .page-about {
        font-size: 16px;
        line-height: 1.6;
    }
    .page-about__container,
    .page-about__hero-section,
    .page-about__introduction-section,
    .page-about__mission-vision-section,
    .page-about__why-choose-us-section,
    .page-about__team-section,
    .page-about__commitment-section,
    .page-about__faq-section,
    .page-about__cta-section {
        padding-left: 15px !important;
        padding-right: 15px !important;
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
    }

    .page-about__hero-section {
        padding-top: 10px !important; /* body đã xử lý --header-offset */
        padding-bottom: 40px !important;
    }

    .page-about__main-title {
        font-size: clamp(1.8rem, 8vw, 2.5rem);
    }

    .page-about__section-title {
        font-size: 2rem;
        margin-bottom: 30px;
    }

    .page-about__btn-primary,
    .page-about__btn-secondary {
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
        white-space: normal !important;
        word-wrap: break-word !important;
        margin-left: 0 !important;
        margin-bottom: 15px;
    }

    .page-about__cta-buttons {
        flex-direction: column;
        gap: 0;
    }

    .page-about__card {
        padding: 20px;
        box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    }

    /* Image responsive rules */
    .page-about img {
        max-width: 100% !important;
        width: 100% !important;
        height: auto !important;
        display: block !important;
    }

    .page-about__image-wrapper,
    .page-about__hero-image-wrapper {
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
        overflow: hidden !important;
    }

    /* Video responsive rules (if any, although not in this page) */
    .page-about video,
    .page-about__video {
        max-width: 100% !important;
        width: 100% !important;
        height: auto !important;
        display: block !important;
    }

    .page-about__video-section,
    .page-about__video-container,
    .page-about__video-wrapper {
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
        padding-left: 15px;
        padding-right: 15px;
        overflow: hidden !important;
    }
    .page-about__video-section {
        padding-top: 10px !important;
    }
}

@media (max-width: 480px) {
    .page-about__section-title {
        font-size: 1.8rem;
    }
    .page-about__card-title {
        font-size: 1.5rem;
    }
    .page-about__faq-item summary {
        font-size: 1rem;
        padding: 15px 20px;
    }
    .page-about__faq-answer {
        padding: 15px 20px;
    }
}