/* style/download.css */

/* Custom Colors */
:root {
    --color-primary: #11A84E;
    --color-secondary: #22C768;
    --color-button-gradient-start: #2AD16F;
    --color-button-gradient-end: #13994A;
    --color-card-bg: #11271B;
    --color-background: #08160F;
    --color-text-main: #F2FFF6;
    --color-text-secondary: #A7D9B8;
    --color-border: #2E7A4E;
    --color-glow: #57E38D;
    --color-gold: #F2C14E;
    --color-divider: #1E3A2A;
    --color-deep-green: #0A4B2C;
}

.page-download {
    font-family: 'Arial', sans-serif;
    line-height: 1.6;
    color: var(--color-text-main); /* Default text color for the page */
    background-color: var(--color-background); /* Dark background */
}

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

/* --- Hero Section --- */
.page-download__hero-section {
    position: relative;
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 10px 0 60px 0; /* body padding-top handles header offset */
    text-align: center;
    overflow: hidden;
    background-color: var(--color-background);
}

.page-download__hero-image-wrapper {
    width: 100%;
    max-height: 700px; /* Limit height for hero image */
    overflow: hidden;
    position: relative;
}

.page-download__hero-image {
    width: 100%;
    height: auto;
    display: block;
    object-fit: cover;
    object-position: center;
    opacity: 0.8;
}

.page-download__hero-content {
    position: relative;
    z-index: 10;
    max-width: 900px;
    padding: 40px 20px;
    background: rgba(8, 22, 15, 0.7); /* Slightly transparent background for readability */
    border-radius: 15px;
    margin-top: -100px; /* Overlap slightly with image for design effect, but not cover text */
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.page-download__main-title {
    font-size: clamp(2.2rem, 4vw, 3.2rem); /* Responsive font size */
    color: var(--color-gold);
    font-weight: 700;
    margin-bottom: 20px;
    line-height: 1.2;
    text-shadow: 0 0 10px rgba(87, 227, 141, 0.5);
}

.page-download__description {
    font-size: 1.1rem;
    color: var(--color-text-main);
    margin-bottom: 30px;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.page-download__cta-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
    width: 100%;
    max-width: 600px;
    margin: 0 auto;
}

.page-download__btn-primary,
.page-download__btn-secondary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 15px 30px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    font-size: 1.05rem;
    transition: all 0.3s ease;
    white-space: normal;
    word-wrap: break-word;
    text-align: center;
    box-sizing: border-box;
    max-width: 100%;
    min-width: 180px;
}

.page-download__btn-primary {
    background: var(--color-button-gradient-start);
    background: linear-gradient(180deg, var(--color-button-gradient-start) 0%, var(--color-button-gradient-end) 100%);
    color: #ffffff;
    border: 2px solid var(--color-glow);
    box-shadow: 0 5px 15px rgba(87, 227, 141, 0.4);
}

.page-download__btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(87, 227, 141, 0.6);
    opacity: 0.9;
}

.page-download__btn-secondary {
    background: transparent;
    color: var(--color-glow);
    border: 2px solid var(--color-glow);
    box-shadow: 0 5px 15px rgba(87, 227, 141, 0.2);
}

.page-download__btn-secondary:hover {
    background: rgba(87, 227, 141, 0.1);
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(87, 227, 141, 0.4);
}

/* --- General Section Styles --- */
.page-download__dark-section {
    background-color: var(--color-deep-green);
    color: var(--color-text-main);
    padding: 80px 0;
}

.page-download__section-title {
    font-size: clamp(1.8rem, 3.5vw, 2.5rem);
    color: var(--color-gold);
    font-weight: 700;
    text-align: center;
    margin-bottom: 20px;
    text-shadow: 0 0 8px rgba(87, 227, 141, 0.3);
}

.page-download__section-description {
    font-size: 1.05rem;
    color: var(--color-text-secondary);
    text-align: center;
    max-width: 800px;
    margin: 0 auto 40px auto;
}

.page-download__card {
    background-color: var(--color-card-bg);
    border: 1px solid var(--color-border);
    border-radius: 10px;
    padding: 30px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    color: var(--color-text-main);
}

.page-download__card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
}

.page-download__card-title {
    font-size: 1.4rem;
    color: var(--color-gold);
    margin-top: 15px;
    margin-bottom: 15px;
    font-weight: 600;
}

/* --- Why Download Section --- */
.page-download__why-download {
    padding: 80px 0;
}

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

.page-download__feature-card {
    text-align: center;
}

.page-download__feature-icon {
    width: 100%;
    max-width: 150px;
    height: auto;
    display: block;
    margin: 0 auto 20px auto;
    border-radius: 10px;
}

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

.page-download__download-steps {
    display: flex;
    gap: 40px;
    flex-wrap: wrap;
    justify-content: center;
}

.page-download__platform-guide {
    flex: 1;
    min-width: 300px;
    max-width: 550px;
    padding: 40px;
    text-align: left;
}

.page-download__guide-image {
    width: 100%;
    height: auto;
    display: block;
    margin-bottom: 25px;
    border-radius: 8px;
    border: 1px solid var(--color-border);
}

.page-download__step-list {
    list-style-type: none;
    padding: 0;
    margin-bottom: 30px;
}

.page-download__step-list li {
    margin-bottom: 15px;
    position: relative;
    padding-left: 30px;
    color: var(--color-text-secondary);
}

.page-download__step-list li strong {
    color: var(--color-text-main);
    font-size: 1.1rem;
}

.page-download__step-list li::before {
    content: attr(data-step-number);
    position: absolute;
    left: 0;
    top: 0;
    background-color: var(--color-primary);
    color: #ffffff;
    border-radius: 50%;
    width: 25px;
    height: 25px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.9rem;
    font-weight: 700;
}

.page-download__step-list li:nth-child(1)::before { content: '1'; }
.page-download__step-list li:nth-child(2)::before { content: '2'; }
.page-download__step-list li:nth-child(3)::before { content: '3'; }
.page-download__step-list li:nth-child(4)::before { content: '4'; }
.page-download__step-list li:nth-child(5)::before { content: '5'; }

/* --- App Benefits Section --- */
.page-download__app-benefits {
    padding: 80px 0;
}

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

.page-download__benefit-item {
    text-align: center;
    background-color: var(--color-card-bg);
    border: 1px solid var(--color-border);
    border-radius: 10px;
    padding: 30px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.page-download__benefit-image {
    width: 100%;
    max-width: 400px;
    height: auto;
    display: block;
    margin: 0 auto 20px auto;
    border-radius: 8px;
}

.page-download__benefit-title {
    font-size: 1.5rem;
    color: var(--color-gold);
    margin-bottom: 15px;
    font-weight: 600;
}

.page-download__benefit-item p {
    color: var(--color-text-secondary);
}

/* --- Code Entry Section --- */
.page-download__code-entry {
    padding: 80px 0;
    background-color: var(--color-background);
}

.page-download__code-guide-flex {
    display: flex;
    gap: 50px;
    align-items: center;
    flex-wrap: wrap;
    justify-content: center;
}

.page-download__code-steps {
    flex: 1;
    min-width: 300px;
    max-width: 600px;
}

.page-download__code-image-wrapper {
    flex: 1;
    min-width: 300px;
    max-width: 500px;
}

.page-download__code-image {
    width: 100%;
    height: auto;
    display: block;
    border-radius: 8px;
    border: 1px solid var(--color-border);
}

.page-download__tip {
    background-color: var(--color-deep-green);
    border-left: 5px solid var(--color-glow);
    padding: 15px 20px;
    margin-top: 30px;
    border-radius: 5px;
    color: var(--color-text-secondary);
    font-size: 0.95rem;
}

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

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

.page-download__video-wrapper {
    position: relative;
    padding-bottom: 56.25%; /* 16:9 Aspect Ratio */
    height: 0;
    overflow: hidden;
    max-width: 100%;
    background: #000;
    border-radius: 10px;
    margin-top: 40px;
    border: 1px solid var(--color-border);
}

.page-download__video-wrapper iframe,
.page-download__video-wrapper video,
.page-download__video-wrapper .page-download__video-link {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: block;
    cursor: pointer;
}

.page-download__video {
    width: 100%;
    height: auto;
    display: block;
    border-radius: 10px;
}

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

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

.page-download__faq-item {
    background-color: var(--color-card-bg);
    border: 1px solid var(--color-border);
    border-radius: 10px;
    margin-bottom: 15px;
    overflow: hidden;
    color: var(--color-text-main);
}

.page-download__faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 25px;
    font-size: 1.15rem;
    font-weight: 600;
    color: var(--color-text-main);
    cursor: pointer;
    background-color: var(--color-deep-green);
    border-bottom: 1px solid var(--color-divider);
    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: rgba(46, 122, 78, 0.4);
}

.page-download__faq-item[open] .page-download__faq-question {
    background-color: var(--color-primary);
    color: #ffffff;
    border-bottom-color: var(--color-primary);
}

.page-download__faq-item[open] .page-download__faq-toggle {
    color: #ffffff;
}

.page-download__faq-qtext {
    flex-grow: 1;
}

.page-download__faq-toggle {
    font-size: 1.8rem;
    line-height: 1;
    margin-left: 15px;
    color: var(--color-glow);
    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;
    color: var(--color-text-secondary);
    background-color: var(--color-card-bg);
}

/* --- Final CTA Section --- */
.page-download__final-cta {
    padding: 80px 0;
    text-align: center;
}

/* --- Responsive Design --- */
@media (max-width: 1024px) {
    .page-download__hero-content {
        margin-top: -50px;
    }
}

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

    .page-download__container {
        padding-left: 15px;
        padding-right: 15px;
    }

    .page-download__hero-section {
        padding-bottom: 40px;
    }

    .page-download__hero-content {
        padding: 30px 15px;
        margin-top: -80px;
    }

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

    .page-download__description {
        font-size: 1rem;
    }

    .page-download__cta-buttons {
        flex-direction: column;
        gap: 15px;
        padding: 0 15px;
    }

    .page-download__btn-primary,
    .page-download__btn-secondary {
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
        padding: 12px 20px;
        font-size: 1rem;
    }

    .page-download__dark-section,
    .page-download__how-to-download,
    .page-download__app-benefits,
    .page-download__code-entry,
    .page-download__video-section,
    .page-download__faq,
    .page-download__final-cta {
        padding: 60px 0;
    }

    .page-download__section-title {
        font-size: clamp(1.5rem, 7vw, 2rem);
        margin-bottom: 15px;
    }

    .page-download__section-description {
        font-size: 0.95rem;
        margin-bottom: 30px;
    }

    .page-download__features-grid,
    .page-download__benefits-grid {
        grid-template-columns: 1fr;
        gap: 25px;
    }

    .page-download__platform-guide {
        padding: 30px 20px;
        min-width: unset;
        max-width: 100%;
    }

    .page-download__code-guide-flex {
        flex-direction: column;
        gap: 30px;
    }

    .page-download__code-steps,
    .page-download__code-image-wrapper {
        max-width: 100%;
    }

    .page-download__step-list li {
        font-size: 0.95rem;
    }

    /* Image, Video responsiveness */
    .page-download img,
    .page-download video {
        max-width: 100% !important;
        width: 100% !important;
        height: auto !important;
        display: block !important;
    }

    .page-download__section,
    .page-download__card,
    .page-download__container,
    .page-download__video-section,
    .page-download__video-container,
    .page-download__video-wrapper,
    .page-download__cta-buttons,
    .page-download__button-group,
    .page-download__btn-container {
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
        padding-left: 15px;
        padding-right: 15px;
        overflow: hidden !important; /* Ensure no overflow */
    }

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

@media (max-width: 480px) {
    .page-download__hero-content {
        margin-top: -60px;
    }
    .page-download__main-title {
        font-size: clamp(1.5rem, 9vw, 2.2rem);
    }
    .page-download__btn-primary,
    .page-download__btn-secondary {
        font-size: 0.95rem;
        padding: 10px 15px;
    }
    .page-download__faq-question {
        font-size: 1rem;
        padding: 15px 20px;
    }
    .page-download__faq-answer {
        padding: 15px 20px;
        font-size: 0.9rem;
    }
}