:root {
    --primary-color: #26A9E0;
    --secondary-color: #FFFFFF;
    --login-color: #EA7C07;
    --text-dark: #333333;
    --text-light: #FFFFFF;
    --bg-light: #FFFFFF;
    --border-light: #e0e0e0;
}

.page-trach-nhiem-co-bac {
    font-family: Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-dark); /* Default text color for light body background */
    background-color: var(--bg-light); /* Assuming body background is white from shared.css */
}

.page-trach-nhiem-co-bac__container {
    max-width: 1170px;
    margin: 0 auto;
    padding: 20px 16px;
}

/* Hero Section */
.page-trach-nhiem-co-bac__hero-section {
    padding-top: 10px; /* Small top padding, relying on body padding-top for header offset */
    padding-bottom: 60px;
    background-color: var(--bg-light);
    color: var(--text-dark);
}

.page-trach-nhiem-co-bac__hero-container {
    max-width: 1170px;
    margin: 0 auto;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 40px;
    padding: 40px 16px;
}

.page-trach-nhiem-co-bac__hero-content {
    flex: 1 1 45%;
    min-width: 300px;
}

.page-trach-nhiem-co-bac__hero-title {
    font-size: 2.8em;
    font-weight: bold;
    color: var(--primary-color);
    margin-bottom: 20px;
    line-height: 1.2;
}

.page-trach-nhiem-co-bac__hero-description {
    font-size: 1.1em;
    margin-bottom: 30px;
    color: var(--text-dark);
}

.page-trach-nhiem-co-bac__hero-cta-buttons {
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
}

.page-trach-nhiem-co-bac__hero-image {
    flex: 1 1 45%;
    text-align: center;
}

.page-trach-nhiem-co-bac__hero-side-image {
    max-width: 600px;
    width: 100%;
    height: auto;
    border-radius: 8px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

/* General Section Styling */
.page-trach-nhiem-co-bac__section-title {
    font-size: 2.2em;
    color: var(--primary-color);
    text-align: center;
    margin-bottom: 40px;
    font-weight: bold;
    line-height: 1.3;
}

.page-trach-nhiem-co-bac__intro-text {
    font-size: 1.1em;
    text-align: center;
    margin-bottom: 40px;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

/* Commitment Section */
.page-trach-nhiem-co-bac__commitment-section {
    padding: 60px 0;
    background-color: var(--bg-light);
}

.page-trach-nhiem-co-bac__content-wrapper {
    display: flex;
    flex-wrap: wrap;
    gap: 40px;
    align-items: center;
}

.page-trach-nhiem-co-bac__text-block {
    flex: 1 1 45%;
    min-width: 300px;
}

.page-trach-nhiem-co-bac__text-block p {
    margin-bottom: 15px;
    font-size: 1.05em;
    color: var(--text-dark);
}

.page-trach-nhiem-co-bac__image-block {
    flex: 1 1 45%;
    text-align: center;
}

.page-trach-nhiem-co-bac__image-block--center {
    text-align: center;
    margin-top: 30px;
}

.page-trach-nhiem-co-bac__content-image {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
    min-width: 200px; /* Enforce minimum size */
    min-height: 200px;
}

/* Principles Section */
.page-trach-nhiem-co-bac__principles-section {
    padding: 80px 0;
    background-color: var(--primary-color); /* Dark background */
    color: var(--text-light); /* Light text */
}

.page-trach-nhiem-co-bac__principles-section .page-trach-nhiem-co-bac__section-title {
    color: var(--text-light);
}

.page-trach-nhiem-co-bac__principles-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.page-trach-nhiem-co-bac__principle-card {
    background-color: rgba(255, 255, 255, 0.15);
    padding: 30px;
    border-radius: 10px;
    text-align: center;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
    color: var(--text-light);
}

.page-trach-nhiem-co-bac__principle-card .page-trach-nhiem-co-bac__card-title {
    font-size: 1.5em;
    margin-bottom: 15px;
    color: var(--text-light);
    font-weight: bold;
}

.page-trach-nhiem-co-bac__principle-card p {
    font-size: 1em;
    line-height: 1.5;
}

/* Tools Section */
.page-trach-nhiem-co-bac__tools-section {
    padding: 80px 0;
    background-color: var(--bg-light);
}

.page-trach-nhiem-co-bac__tools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-bottom: 50px;
}

.page-trach-nhiem-co-bac__tool-card {
    background-color: var(--secondary-color);
    border: 1px solid var(--border-light);
    border-radius: 10px;
    padding: 25px;
    text-align: center;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s ease;
}

.page-trach-nhiem-co-bac__tool-card:hover {
    transform: translateY(-5px);
}

.page-trach-nhiem-co-bac__tool-image {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    margin-bottom: 20px;
    min-width: 200px; /* Enforce minimum size */
    min-height: 200px;
}

.page-trach-nhiem-co-bac__tool-card .page-trach-nhiem-co-bac__card-title {
    font-size: 1.4em;
    color: var(--primary-color);
    margin-bottom: 10px;
    font-weight: bold;
}

.page-trach-nhiem-co-bac__tool-card p {
    font-size: 0.95em;
    color: var(--text-dark);
    line-height: 1.5;
}

.page-trach-nhiem-co-bac__cta-center {
    text-align: center;
    margin-top: 30px;
}

/* Signs Section */
.page-trach-nhiem-co-bac__signs-section {
    padding: 60px 0;
    background-color: var(--bg-light);
}

.page-trach-nhiem-co-bac__sign-list {
    list-style: none;
    padding: 0;
    max-width: 800px;
    margin: 0 auto 40px auto;
    font-size: 1.05em;
    color: var(--text-dark);
}

.page-trach-nhiem-co-bac__sign-list li {
    background-color: #f9f9f9;
    margin-bottom: 10px;
    padding: 15px 20px;
    border-left: 5px solid var(--primary-color);
    border-radius: 5px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
}

/* Support Section */
.page-trach-nhiem-co-bac__support-section {
    padding: 80px 0;
    background-color: var(--primary-color); /* Dark background */
    color: var(--text-light); /* Light text */
}

.page-trach-nhiem-co-bac__support-section .page-trach-nhiem-co-bac__section-title {
    color: var(--text-light);
}

.page-trach-nhiem-co-bac__support-section .page-trach-nhiem-co-bac__intro-text {
    color: var(--text-light);
}

.page-trach-nhiem-co-bac__support-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    margin-bottom: 50px;
}

.page-trach-nhiem-co-bac__support-card {
    background-color: rgba(255, 255, 255, 0.15);
    padding: 30px;
    border-radius: 10px;
    text-align: center;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
    color: var(--text-light);
}

.page-trach-nhiem-co-bac__support-card .page-trach-nhiem-co-bac__card-title {
    font-size: 1.5em;
    margin-bottom: 15px;
    color: var(--text-light);
    font-weight: bold;
}

.page-trach-nhiem-co-bac__support-card p {
    font-size: 1em;
    line-height: 1.5;
}

.page-trach-nhiem-co-bac__support-card a {
    color: var(--secondary-color);
    text-decoration: underline;
}

/* FAQ Section */
.page-trach-nhiem-co-bac__faq-section {
    padding: 60px 0;
    background-color: var(--bg-light);
}

.page-trach-nhiem-co-bac__faq-list {
    max-width: 900px;
    margin: 0 auto;
}

.page-trach-nhiem-co-bac__faq-item {
    background-color: var(--secondary-color);
    border: 1px solid var(--border-light);
    border-radius: 8px;
    margin-bottom: 15px;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.03);
}

.page-trach-nhiem-co-bac__faq-item summary {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 25px;
    font-size: 1.15em;
    font-weight: bold;
    color: var(--primary-color);
    cursor: pointer;
    list-style: none; /* Remove default marker */
    outline: none;
}

.page-trach-nhiem-co-bac__faq-item summary::-webkit-details-marker {
    display: none; /* Hide default marker for webkit browsers */
}

.page-trach-nhiem-co-bac__faq-qtext {
    flex-grow: 1;
}

.page-trach-nhiem-co-bac__faq-toggle {
    font-size: 1.5em;
    line-height: 1;
    margin-left: 15px;
    transition: transform 0.3s ease;
}

.page-trach-nhiem-co-bac__faq-item[open] .page-trach-nhiem-co-bac__faq-toggle {
    transform: rotate(45deg); /* Change + to X or rotate it */
}

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

/* Final CTA Section */
.page-trach-nhiem-co-bac__final-cta-section {
    padding: 80px 0;
    background-color: var(--primary-color);
    color: var(--text-light);
    text-align: center;
}

.page-trach-nhiem-co-bac__final-cta-section .page-trach-nhiem-co-bac__section-title {
    color: var(--text-light);
    margin-bottom: 20px;
}

.page-trach-nhiem-co-bac__final-cta-section p {
    font-size: 1.1em;
    max-width: 800px;
    margin: 0 auto 30px auto;
    color: var(--text-light);
}

/* Buttons */
.page-trach-nhiem-co-bac__btn-primary,
.page-trach-nhiem-co-bac__btn-secondary {
    display: inline-block;
    padding: 14px 30px;
    border-radius: 5px;
    font-size: 1.05em;
    font-weight: bold;
    text-decoration: none;
    transition: all 0.3s ease;
    text-align: center;
    box-sizing: border-box;
    white-space: normal;
    word-wrap: break-word;
    max-width: 100%;
}

.page-trach-nhiem-co-bac__btn-primary {
    background-color: var(--primary-color);
    color: var(--text-light);
    border: 2px solid var(--primary-color);
}

.page-trach-nhiem-co-bac__btn-primary:hover {
    background-color: #208DBF; /* Manual darker shade */
    border-color: #208DBF;
}

.page-trach-nhiem-co-bac__btn-secondary {
    background-color: transparent;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
}

.page-trach-nhiem-co-bac__btn-secondary:hover {
    background-color: var(--primary-color);
    color: var(--text-light);
}

/* Dark Section Button Overrides */
.page-trach-nhiem-co-bac__dark-section .page-trach-nhiem-co-bac__btn-primary {
    background-color: var(--secondary-color);
    color: var(--primary-color);
    border-color: var(--secondary-color);
}

.page-trach-nhiem-co-bac__dark-section .page-trach-nhiem-co-bac__btn-primary:hover {
    background-color: #f0f0f0;
    border-color: #f0f0f0;
    color: var(--primary-color);
}

.page-trach-nhiem-co-bac__dark-section .page-trach-nhiem-co-bac__btn-secondary {
    background-color: transparent;
    color: var(--secondary-color);
    border-color: var(--secondary-color);
}

.page-trach-nhiem-co-bac__dark-section .page-trach-nhiem-co-bac__btn-secondary:hover {
    background-color: var(--secondary-color);
    color: var(--primary-color);
}

/* Responsive Design */
@media (max-width: 1024px) {
    .page-trach-nhiem-co-bac__hero-title {
        font-size: 2.5em;
    }

    .page-trach-nhiem-co-bac__section-title {
        font-size: 2em;
    }

    .page-trach-nhiem-co-bac__hero-container {
        flex-direction: column;
        text-align: center;
    }

    .page-trach-nhiem-co-bac__hero-content,
    .page-trach-nhiem-co-bac__hero-image {
        flex: 1 1 100%;
    }

    .page-trach-nhiem-co-bac__hero-cta-buttons {
        justify-content: center;
    }

    .page-trach-nhiem-co-bac__content-wrapper {
        flex-direction: column;
    }

    .page-trach-nhiem-co-bac__text-block,
    .page-trach-nhiem-co-bac__image-block {
        flex: 1 1 100%;
    }

    .page-trach-nhiem-co-bac__principles-grid,
    .page-trach-nhiem-co-bac__tools-grid,
    .page-trach-nhiem-co-bac__support-grid {
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    }
}

@media (max-width: 768px) {
    /* General content area padding and sizing */
    .page-trach-nhiem-co-bac__container,
    .page-trach-nhiem-co-bac__hero-container {
        padding: 15px !important;
        width: 100% !important;
        max-width: 100% !important;
        box-sizing: border-box !important;
    }
    
    .page-trach-nhiem-co-bac__hero-section {
        padding-top: 10px !important; /* Specific top padding for hero on mobile */
        padding-bottom: 40px !important;
    }

    .page-trach-nhiem-co-bac__hero-title {
        font-size: clamp(1.8em, 7vw, 2.2em) !important; /* Clamp for H1 to avoid overflow */
        margin-bottom: 15px !important;
    }

    .page-trach-nhiem-co-bac__hero-description {
        font-size: 1em !important;
        margin-bottom: 25px !important;
    }

    .page-trach-nhiem-co-bac__section-title {
        font-size: 1.8em !important;
        margin-bottom: 30px !important;
    }

    .page-trach-nhiem-co-bac__intro-text {
        font-size: 1em !important;
        margin-bottom: 30px !important;
    }

    /* Universal image responsive styles for content area */
    .page-trach-nhiem-co-bac img {
        max-width: 100% !important;
        width: 100% !important; /* Ensure images take full width of their container */
        height: auto !important;
        box-sizing: border-box !important;
    }

    /* Specific container styles for images to prevent overflow */
    .page-trach-nhiem-co-bac__image-block,
    .page-trach-nhiem-co-bac__content-wrapper,
    .page-trach-nhiem-co-bac__principles-grid,
    .page-trach-nhiem-co-bac__tools-grid,
    .page-trach-nhiem-co-bac__support-grid,
    .page-trach-nhiem-co-bac__faq-list {
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
        padding-left: 15px;
        padding-right: 15px;
    }
    
    /* Buttons responsive styles */
    .page-trach-nhiem-co-bac__btn-primary,
    .page-trach-nhiem-co-bac__btn-secondary,
    .page-trach-nhiem-co-bac a[class*="button"],
    .page-trach-nhiem-co-bac 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;
        margin-bottom: 10px; /* Space between stacked buttons */
    }

    /* Button containers for mobile stacking */
    .page-trach-nhiem-co-bac__hero-cta-buttons,
    .page-trach-nhiem-co-bac__cta-center {
        display: flex !important;
        flex-direction: column !important;
        gap: 10px !important;
        align-items: center !important;
        width: 100% !important;
        max-width: 100% !important;
        box-sizing: border-box !important;
    }
    
    /* Grid layouts for mobile */
    .page-trach-nhiem-co-bac__principles-grid,
    .page-trach-nhiem-co-bac__tools-grid,
    .page-trach-nhiem-co-bac__support-grid {
        grid-template-columns: 1fr !important; /* Single column for grids */
        gap: 20px !important;
    }

    /* FAQ items */
    .page-trach-nhiem-co-bac__faq-item summary {
        font-size: 1.05em !important;
        padding: 15px 20px !important;
    }

    .page-trach-nhiem-co-bac__faq-answer {
        padding: 0 20px 15px 20px !important;
    }

    /* List items */
    .page-trach-nhiem-co-bac__sign-list li {
        padding: 12px 15px !important;
        font-size: 0.95em !important;
    }
}