/* style/about.css */

/* Biến màu sắc */
:root {
    --primary-color: #26A9E0;
    --secondary-color: #FFFFFF;
    --login-color: #EA7C07;
    --text-dark: #333333;
    --text-light: #ffffff;
    --bg-light: #f8f9fa;
    --bg-white: #ffffff;
    --border-light: #e0e0e0;
}

/* Các kiểu chung cho trang About Us */
.page-about {
    font-family: Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-light); /* Mặc định cho body nền tối */
}

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

.page-about__section {
    padding: 60px 0;
    text-align: center;
    color: var(--text-dark); /* Mặc định cho các section nền sáng */
}

.page-about__section-title {
    font-size: 2.5em;
    margin-bottom: 30px;
    color: var(--primary-color);
    font-weight: bold;
    line-height: 1.2;
}

.page-about__paragraph {
    font-size: 1.1em;
    margin-bottom: 20px;
    color: var(--text-dark);
}

/* Nền tối và nền sáng */
.page-about__dark-bg {
    background-color: var(--primary-color);
    color: var(--text-light);
}

.page-about__dark-bg .page-about__section-title,
.page-about__dark-bg .page-about__paragraph,
.page-about__dark-bg .page-about__card-title,
.page-about__dark-bg .page-about__card-text {
    color: var(--text-light);
}

.page-about__light-bg {
    background-color: var(--bg-white);
    color: var(--text-dark);
}

/* Hero Section */
.page-about__hero-section {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    padding-top: 10px; /* Small top padding as body handles header offset */
    padding-bottom: 60px;
}

.page-about__hero-image-container {
    width: 100%;
    max-height: 700px;
    overflow: hidden;
    position: relative;
    order: 1; /* Image first */
}

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

.page-about__hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    padding: 40px 20px;
    order: 2; /* Content after image */
    background-color: rgba(38, 169, 224, 0.9); /* Semi-transparent background for readability */
    max-width: 900px;
    margin-top: -100px; /* Overlap slightly for design, but not on image */
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.2);
}

.page-about__main-title {
    font-weight: bold;
    line-height: 1.2;
    letter-spacing: -0.02em;
    color: var(--text-light);
    margin-bottom: 20px;
    /* No fixed font-size for H1, relying on responsive scaling */
}

.page-about__intro-text {
    font-size: 1.2em;
    color: var(--text-light);
    margin-bottom: 30px;
}

/* Buttons */
.page-about__cta-buttons {
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
}

.page-about__btn-primary,
.page-about__btn-secondary,
.page-about__btn-link {
    display: inline-block;
    padding: 15px 30px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: bold;
    transition: all 0.3s ease;
    box-sizing: border-box;
    max-width: 100%; /* Ensure button does not overflow */
    white-space: normal; /* Allow text wrapping */
    word-wrap: break-word; /* Allow text breaking */
}

.page-about__btn-primary {
    background-color: var(--login-color);
    color: var(--text-light);
    border: 2px solid var(--login-color);
}

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

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

.page-about__btn-secondary:hover {
    background-color: var(--text-light);
    color: var(--primary-color);
}

.page-about__btn-link {
    background-color: var(--primary-color);
    color: var(--text-light);
    border: 1px solid var(--primary-color);
    padding: 10px 20px;
    font-size: 0.9em;
}

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

/* Grid Layout */
.page-about__grid-layout {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

/* Cards */
.page-about__card {
    background-color: var(--bg-white);
    border-radius: 10px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    padding: 30px;
    text-align: center;
    color: var(--text-dark);
    transition: transform 0.3s ease;
    min-height: 450px; /* Ensure minimum height for card content */
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.page-about__card:hover {
    transform: translateY(-10px);
}

.page-about__card-image {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    margin-bottom: 20px;
    min-width: 200px; /* Min image size */
    min-height: 200px; /* Min image size */
    object-fit: cover;
}

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

.page-about__card-text {
    font-size: 1em;
    color: var(--text-dark);
    flex-grow: 1;
}

/* Product List */
.page-about__product-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.page-about__product-item {
    background-color: var(--bg-white);
    border-radius: 10px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    padding: 25px;
    text-align: center;
    color: var(--text-dark);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    min-height: 480px;
}

.page-about__product-image {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    margin-bottom: 15px;
    min-width: 200px; /* Min image size */
    min-height: 200px; /* Min image size */
    object-fit: cover;
}

.page-about__product-name {
    font-size: 1.3em;
    color: var(--primary-color);
    margin-bottom: 10px;
    font-weight: bold;
}

.page-about__product-description {
    font-size: 0.95em;
    color: var(--text-dark);
    margin-bottom: 20px;
    flex-grow: 1;
}

.page-about__cta-section {
    margin-top: 50px;
    padding-top: 30px;
    border-top: 1px solid var(--border-light);
}

/* Safety & Security Section */
.page-about__safety-security .page-about__flex-content {
    display: flex;
    align-items: center;
    gap: 40px;
    text-align: left;
}

.page-about__safety-security .page-about__text-block {
    flex: 1;
}

.page-about__safety-security .page-about__image-block {
    flex: 1;
}

.page-about__safety-security .page-about__image {
    max-width: 100%;
    height: auto;
    border-radius: 10px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    min-width: 200px;
    min-height: 200px;
    object-fit: cover;
}

/* Customer Support Section */
.page-about__customer-support .page-about__flex-content {
    display: flex;
    align-items: center;
    gap: 40px;
    text-align: left;
}

.page-about__customer-support .page-about__text-block {
    flex: 1;
}

.page-about__customer-support .page-about__image-block {
    flex: 1;
}

.page-about__customer-support .page-about__image {
    max-width: 100%;
    height: auto;
    border-radius: 10px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    min-width: 200px;
    min-height: 200px;
    object-fit: cover;
}

/* FAQ Section */
.page-about__faq-list {
    margin-top: 40px;
    text-align: left;
}

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

.page-about__faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 18px 25px;
    font-size: 1.15em;
    font-weight: bold;
    color: var(--primary-color);
    cursor: pointer;
    background-color: var(--bg-white);
    user-select: none;
}

.page-about__faq-question::-webkit-details-marker, /* Hide default marker for Chrome */
.page-about__faq-question::marker { /* Hide default marker for Firefox */
    display: none;
}

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

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

.page-about__faq-answer {
    padding: 0 25px 20px;
    font-size: 1em;
    color: var(--text-dark);
    line-height: 1.6;
}

.page-about__faq-answer .page-about__paragraph {
    margin-bottom: 10px;
    text-align: left;
}

/* Opportunities Section */
.page-about__opportunities .page-about__card {
    min-height: 400px;
}

/* Conclusion Section */
.page-about__conclusion {
    background-color: var(--primary-color);
    color: var(--text-light);
    padding: 80px 0;
}

.page-about__conclusion .page-about__section-title,
.page-about__conclusion .page-about__paragraph {
    color: var(--text-light);
}

/* Responsive Design */
@media (max-width: 1024px) {
    .page-about__hero-content {
        margin-top: -80px;
    }
    .page-about__section-title {
        font-size: 2em;
    }
    .page-about__paragraph {
        font-size: 1em;
    }
    .page-about__cta-buttons {
        gap: 15px;
    }
    .page-about__btn-primary,
    .page-about__btn-secondary {
        padding: 12px 25px;
    }
}

@media (max-width: 768px) {
    .page-about__hero-section {
        padding-bottom: 40px;
    }
    .page-about__hero-content {
        margin-top: -60px;
        padding: 30px 15px;
    }
    .page-about__main-title {
        font-size: 1.8em; /* Adjusted for mobile */
    }
    .page-about__intro-text {
        font-size: 1.1em;
    }
    .page-about__section {
        padding: 40px 0;
    }
    .page-about__section-title {
        font-size: 1.8em;
    }
    .page-about__paragraph {
        font-size: 0.95em;
    }
    .page-about__grid-layout,
    .page-about__product-list {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    .page-about__card,
    .page-about__product-item {
        min-height: auto;
    }

    /* Images responsive */
    .page-about img {
        max-width: 100% !important;
        width: 100% !important;
        height: auto !important;
        display: block !important;
    }
    
    /* Containers responsive */
    .page-about__section,
    .page-about__card,
    .page-about__container,
    .page-about__product-item,
    .page-about__hero-image-container,
    .page-about__image-block,
    .page-about__text-block,
    .page-about__flex-content {
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
        padding-left: 15px;
        padding-right: 15px;
    }

    /* Video section top padding */
    .page-about__video-section {
        padding-top: 10px !important;
    }

    /* Buttons responsive */
    .page-about__cta-button,
    .page-about__btn-primary,
    .page-about__btn-secondary,
    .page-about a[class*="button"],
    .page-about 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-about__cta-buttons,
    .page-about__button-group,
    .page-about__btn-container {
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
        padding-left: 15px;
        padding-right: 15px;
        flex-direction: column !important; /* Stack buttons vertically */
        gap: 10px !important;
    }

    /* Flex content for mobile stacking */
    .page-about__safety-security .page-about__flex-content,
    .page-about__customer-support .page-about__flex-content {
        flex-direction: column;
        text-align: center;
    }
    .page-about__customer-support .page-about__flex-reverse-mobile {
        flex-direction: column-reverse;
    }
    .page-about__safety-security .page-about__text-block,
    .page-about__customer-support .page-about__text-block {
        order: 2;
    }
    .page-about__safety-security .page-about__image-block,
    .page-about__customer-support .page-about__image-block {
        order: 1;
        margin-bottom: 20px;
    }

    .page-about__faq-question {
        font-size: 1em;
        padding: 15px 20px;
    }
    .page-about__faq-answer {
        padding: 0 20px 15px;
    }
}

@media (max-width: 480px) {
    .page-about__main-title {
        font-size: 1.5em;
    }
    .page-about__intro-text {
        font-size: 1em;
    }
    .page-about__section-title {
        font-size: 1.5em;
    }
    .page-about__btn-primary,
    .page-about__btn-secondary {
        padding: 10px 20px;
        font-size: 0.9em;
    }
    .page-about__hero-content {
        margin-top: -40px;
    }
}