/* style/download.css */
/* body đã padding-top: var(--header-offset) từ shared.css, không lặp lại ở đây */

:root {
    --page-download-primary-color: #11A84E;
    --page-download-secondary-color: #22C768;
    --page-download-background-dark: #08160F; /* Background */
    --page-download-card-bg: #11271B; /* Card BG */
    --page-download-text-main: #F2FFF6; /* Text Main */
    --page-download-text-secondary: #A7D9B8; /* Text Secondary */
    --page-download-border-color: #2E7A4E; /* Biên độ */
    --page-download-glow-color: #57E38D; /* Glow */
    --page-download-gold-color: #F2C14E; /* Gold */
    --page-download-divider-color: #1E3A2A; /* Divider */
    --page-download-deep-green: #0A4B2C; /* Deep Green */
    --page-download-button-gradient: linear-gradient(180deg, #2AD16F 0%, #13994A 100%); /* Button */
}

.page-download {
    font-family: 'Arial', sans-serif;
    color: var(--page-download-text-main); /* Default text color for dark background */
    background-color: var(--page-download-background-dark); /* Ensure consistency with body background */
}

/* Common container for content sections */
.page-download__container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 40px 20px;
    box-sizing: border-box;
}

.page-download__section-title {
    font-size: clamp(2rem, 4vw, 3.2rem);
    font-weight: 700;
    color: var(--page-download-text-main);
    text-align: center;
    margin-bottom: 30px;
    line-height: 1.2;
}

.page-download__text-block {
    font-size: 1.1rem;
    line-height: 1.6;
    text-align: center;
    max-width: 800px;
    margin: 0 auto 40px auto;
    color: var(--page-download-text-secondary);
}

/* HERO Section */
.page-download__hero-section {
    position: relative;
    width: 100%;
    display: flex;
    flex-direction: column; /* Image on top, content below */
    align-items: center;
    padding: 10px 0 60px 0; /* Small top padding, more bottom padding */
    background-color: var(--page-download-background-dark);
    overflow: hidden;
}

.page-download__hero-image-wrapper {
    width: 100%;
    max-width: 100%; /* Ensure it takes full width */
    margin-bottom: 40px; /* Space between image and text */
    overflow: hidden;
    display: flex;
    justify-content: center;
    align-items: center;
}

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

.page-download__hero-content {
    max-width: 900px;
    text-align: center;
    padding: 0 20px;
    box-sizing: border-box;
}

.page-download__main-title {
    font-size: clamp(2.5rem, 5vw, 3.8rem); /* Use clamp for H1 */
    font-weight: 800;
    color: var(--page-download-text-main);
    margin-bottom: 20px;
    line-height: 1.2;
    text-shadow: 0 0 10px rgba(87, 227, 141, 0.4); /* Glow */
}

.page-download__description {
    font-size: 1.2rem;
    line-height: 1.8;
    color: var(--page-download-text-secondary);
    margin-bottom: 40px;
}

.page-download__cta-buttons {
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap; /* Allow wrapping on smaller screens */
}

.page-download__cta-button {
    display: inline-block;
    padding: 15px 30px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 700;
    font-size: 1.1rem;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
    max-width: 100%; /* Ensure responsiveness */
    box-sizing: border-box;
    white-space: normal; /* Allow text wrapping */
    word-wrap: break-word;
    text-align: center;
}

.page-download__btn-primary {
    background: var(--page-download-button-gradient);
    color: var(--page-download-text-main);
    border: 2px solid transparent;
}

.page-download__btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(87, 227, 141, 0.4);
}

.page-download__btn-secondary {
    background-color: transparent;
    color: var(--page-download-primary-color);
    border: 2px solid var(--page-download-primary-color);
}

.page-download__btn-secondary:hover {
    background-color: var(--page-download-primary-color);
    color: var(--page-download-text-main);
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(17, 168, 78, 0.3);
}

/* Why Download Section */
.page-download__why-download-section {
    background-color: var(--page-download-background-dark); /* Using dark background for contrast */
    padding: 80px 0;
    color: var(--page-download-text-main);
}

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

.page-download__card {
    background-color: var(--page-download-card-bg);
    border: 1px solid var(--page-download-border-color);
    border-radius: 12px;
    padding: 25px;
    text-align: center;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.3);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    display: flex;
    flex-direction: column;
    align-items: center;
    color: var(--page-download-text-main);
}

.page-download__card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(87, 227, 141, 0.2);
}

.page-download__card-image {
    width: 100%;
    height: auto;
    max-height: 200px;
    object-fit: cover;
    border-radius: 8px;
    margin-bottom: 20px;
    display: block;
}

.page-download__card-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--page-download-text-main);
    margin-bottom: 15px;
}

.page-download__card-text {
    font-size: 1rem;
    line-height: 1.6;
    color: var(--page-download-text-secondary);
}

/* How to Download Section */
.page-download__how-to-download-section {
    background-color: var(--page-download-deep-green);
    padding: 80px 0;
    color: var(--page-download-text-main);
}

.page-download__download-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 40px;
    margin-top: 50px;
}

.page-download__step-item {
    text-align: center;
    background-color: var(--page-download-card-bg);
    border: 1px solid var(--page-download-border-color);
    border-radius: 12px;
    padding: 30px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.3);
    display: flex;
    flex-direction: column;
    align-items: center;
}

.page-download__step-title {
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--page-download-gold-color);
    margin-bottom: 15px;
}

.page-download__step-text {
    font-size: 1rem;
    line-height: 1.6;
    color: var(--page-download-text-secondary);
    margin-bottom: 20px;
}

.page-download__step-image {
    width: 100%;
    height: auto;
    max-height: 300px;
    object-fit: contain;
    border-radius: 8px;
    border: 1px solid var(--page-download-divider-color);
    display: block;
}

.page-download__qr-codes {
    display: flex;
    justify-content: center;
    gap: 30px;
    margin-top: 60px;
    flex-wrap: wrap;
}

.page-download__qr-item {
    text-align: center;
    padding: 30px;
    min-width: 280px;
    max-width: 350px;
    width: 100%;
}

.page-download__qr-title {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--page-download-text-main);
    margin-bottom: 20px;
}

.page-download__qr-image {
    width: 250px;
    height: 250px;
    object-fit: contain;
    margin-bottom: 25px;
    border: 5px solid var(--page-download-primary-color);
    border-radius: 8px;
    background-color: #fff;
    display: block;
    margin-left: auto;
    margin-right: auto;
}

/* Features Section */
.page-download__features-section {
    background-color: var(--page-download-background-dark);
    padding: 80px 0;
    color: var(--page-download-text-main);
}

.page-download__feature-list {
    list-style: none;
    padding: 0;
    margin: 40px 0 0 0;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.page-download__feature-item {
    background-color: var(--page-download-card-bg);
    border: 1px solid var(--page-download-border-color);
    border-radius: 12px;
    padding: 30px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.3);
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.page-download__feature-icon {
    width: 100px;
    height: 100px;
    object-fit: contain;
    margin-bottom: 20px;
    filter: drop-shadow(0 0 5px var(--page-download-glow-color)); /* Subtle glow for icons */
    display: block;
}

.page-download__feature-heading {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--page-download-text-main);
    margin-bottom: 10px;
}

.page-download__feature-description {
    font-size: 1rem;
    line-height: 1.6;
    color: var(--page-download-text-secondary);
}

/* System Requirements Section */
.page-download__requirements-section {
    background-color: var(--page-download-deep-green);
    padding: 80px 0;
    color: var(--page-download-text-main);
}

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

.page-download__requirement-card {
    padding: 30px;
}

.page-download__requirements-list {
    list-style: none;
    padding: 0;
    margin: 20px 0 0 0;
    text-align: left;
}

.page-download__requirements-list li {
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--page-download-text-secondary);
    margin-bottom: 10px;
    position: relative;
    padding-left: 25px;
}

.page-download__requirements-list li::before {
    content: '✓';
    color: var(--page-download-primary-color);
    position: absolute;
    left: 0;
    font-weight: bold;
}

.page-download__note {
    margin-top: 40px;
    font-style: italic;
    color: var(--page-download-gold-color);
}

/* FAQ Section */
.page-download__faq-section {
    background-color: var(--page-download-background-dark);
    padding: 80px 0;
    color: var(--page-download-text-main);
}

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

.page-download__faq-item {
    background-color: var(--page-download-card-bg);
    border: 1px solid var(--page-download-border-color);
    border-radius: 10px;
    margin-bottom: 15px;
    overflow: hidden;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}

.page-download__faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 25px;
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--page-download-text-main);
    cursor: pointer;
    background-color: var(--page-download-deep-green);
    border-bottom: 1px solid var(--page-download-divider-color);
    transition: background-color 0.3s ease;
    list-style: none; /* For details/summary */
}

.page-download__faq-question::-webkit-details-marker {
    display: none;
}

.page-download__faq-question:hover {
    background-color: var(--page-download-primary-color);
}

.page-download__faq-toggle {
    font-size: 1.8rem;
    line-height: 1;
    margin-left: 15px;
    color: var(--page-download-gold-color);
    transition: transform 0.3s ease;
}

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

.page-download__faq-answer {
    padding: 20px 25px;
    font-size: 1rem;
    line-height: 1.7;
    color: var(--page-download-text-secondary);
    background-color: var(--page-download-card-bg);
}

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

/* Responsive adjustments */
@media (max-width: 1024px) {
    .page-download__hero-image-wrapper {
        margin-bottom: 30px;
    }
    .page-download__main-title {
        font-size: clamp(2.2rem, 4.5vw, 3.5rem);
    }
    .page-download__description {
        font-size: 1.1rem;
    }
}

@media (max-width: 768px) {
    .page-download__hero-section {
        padding: 10px 0 40px 0;
    }
    .page-download__hero-image-wrapper {
        margin-bottom: 20px;
    }
    .page-download__main-title {
        font-size: clamp(1.8rem, 6vw, 2.8rem);
        margin-bottom: 15px;
    }
    .page-download__description {
        font-size: 1rem;
        margin-bottom: 30px;
    }
    .page-download__cta-buttons {
        flex-direction: column;
        gap: 15px;
        padding: 0 15px;
    }
    .page-download__cta-button {
        width: 100% !important;
        max-width: 100% !important;
        padding: 12px 20px;
        font-size: 1rem;
        box-sizing: border-box !important;
        white-space: normal !important;
        word-wrap: break-word !important;
    }
    .page-download__container {
        padding: 30px 15px;
    }
    .page-download__section-title {
        font-size: clamp(1.8rem, 5vw, 2.5rem);
        margin-bottom: 25px;
    }
    .page-download__text-block {
        font-size: 0.95rem;
        margin-bottom: 30px;
    }
    .page-download__features-grid,
    .page-download__download-steps,
    .page-download__requirements-grid {
        grid-template-columns: 1fr;
        gap: 25px;
    }
    .page-download__qr-codes {
        flex-direction: column;
        align-items: center;
        gap: 25px;
    }
    .page-download__qr-item {
        max-width: 90%;
        padding: 20px;
    }
    .page-download__qr-image {
        width: 200px;
        height: 200px;
    }
    .page-download__feature-list {
        grid-template-columns: 1fr;
        gap: 25px;
    }
    .page-download__feature-icon {
        width: 80px;
        height: 80px;
    }
    .page-download__faq-question {
        font-size: 1.1rem;
        padding: 15px 20px;
    }
    .page-download__faq-answer {
        font-size: 0.95rem;
        padding: 15px 20px;
    }
    
    /* Mobile image responsiveness */
    .page-download img {
        max-width: 100% !important;
        height: auto !important;
        display: block !important;
    }
    .page-download__section,
    .page-download__card,
    .page-download__container,
    .page-download__hero-image-wrapper,
    .page-download__qr-item,
    .page-download__step-item,
    .page-download__feature-item,
    .page-download__requirement-card,
    .page-download__faq-item,
    .page-download__cta-section {
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
        /* Add horizontal padding to main content containers to prevent edge-to-edge content */
        padding-left: 15px;
        padding-right: 15px;
    }
    /* Reset padding for specific elements that are already handled by their parent container's padding */
    .page-download__hero-section,
    .page-download__why-download-section,
    .page-download__how-to-download-section,
    .page-download__features-section,
    .page-download__requirements-section,
    .page-download__faq-section,
    .page-download__cta-section {
        padding-left: 0;
        padding-right: 0;
    }
    .page-download__hero-content {
        padding-left: 15px;
        padding-right: 15px;
    }
    /* Ensure video elements and their wrappers are responsive */
    .page-download video,
    .page-download__video {
        max-width: 100% !important;
        width: 100% !important;
        height: auto !important;
        display: block !important;
    }
    .page-download__video-section,
    .page-download__video-container,
    .page-download__video-wrapper {
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
        overflow: hidden !important;
        padding-left: 15px;
        padding-right: 15px;
    }
    .page-download__video-section {
        padding-top: 10px !important; /* Small top padding, not var(--header-offset) */
    }
}

@media (max-width: 480px) {
    .page-download__hero-section {
        padding-bottom: 30px;
    }
    .page-download__main-title {
        font-size: clamp(1.5rem, 7vw, 2.2rem);
    }
    .page-download__section-title {
        font-size: clamp(1.6rem, 6vw, 2.2rem);
    }
    .page-download__cta-buttons {
        gap: 10px;
    }
    .page-download__btn-primary,
    .page-download__btn-secondary {
        padding: 10px 15px;
        font-size: 0.95rem;
    }
    .page-download__qr-image {
        width: 180px;
        height: 180px;
    }
}