/* style/download.css */
/* body đã padding-top: var(--header-offset) */
.page-download {
    font-family: 'Arial', sans-serif;
    line-height: 1.6;
    color: var(--text-main); /* Mặc định chữ sáng trên nền tối của body */
    background-color: var(--background);
}

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

.page-download__section-title {
    font-size: clamp(28px, 4vw, 42px);
    font-weight: 700;
    color: var(--text-main);
    text-align: center;
    margin-bottom: 40px;
    line-height: 1.2;
}

.page-download__text-block {
    font-size: 17px;
    margin-bottom: 20px;
    text-align: justify;
    color: var(--text-main);
}

/* Hero Section */
.page-download__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 */
    text-align: center;
    overflow: hidden;
    background: var(--background);
}

.page-download__hero-image-wrapper {
    width: 100%;
    max-width: 100%;
    overflow: hidden;
    margin-bottom: 30px;
}

.page-download__hero-image {
    width: 100%;
    height: auto;
    display: block;
    object-fit: cover;
    border-radius: 10px;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.5);
}

.page-download__hero-content {
    max-width: 900px;
    z-index: 1;
    padding: 20px;
    background: rgba(17, 39, 27, 0.8);
    border-radius: 10px;
}

.page-download__hero-title {
    font-size: clamp(32px, 5vw, 56px);
    font-weight: 800;
    color: var(--text-main);
    margin-bottom: 20px;
    line-height: 1.1;
    letter-spacing: -0.5px;
}

.page-download__hero-description {
    font-size: 19px;
    color: var(--text-secondary);
    margin-bottom: 30px;
}

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

.page-download__btn-primary,
.page-download__btn-secondary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 15px 30px;
    border-radius: 8px;
    font-size: 18px;
    font-weight: 700;
    text-decoration: none;
    transition: all 0.3s ease;
    box-sizing: border-box;
    white-space: normal;
    word-wrap: break-word;
    max-width: 100%;
}

.page-download__btn-primary {
    background: linear-gradient(180deg, #2AD16F 0%, #13994A 100%);
    color: #F2FFF6; /* Text Main */
    border: 2px solid transparent;
    box-shadow: 0 4px 15px rgba(42, 209, 111, 0.4);
}

.page-download__btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(42, 209, 111, 0.6);
}

.page-download__btn-secondary {
    background: transparent;
    color: var(--deep-green); /* Deep Green */
    border: 2px solid var(--deep-green);
    box-shadow: 0 4px 15px rgba(10, 75, 44, 0.2);
}

.page-download__btn-secondary:hover {
    background: var(--deep-green);
    color: #F2FFF6; /* Text Main */
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(10, 75, 44, 0.4);
}

.page-download__btn-large {
    min-width: 250px;
}

/* Introduction Section */
.page-download__introduction-section {
    padding: 60px 0;
    background: var(--background);
}

.page-download__introduction-section .page-download__text-block {
    text-align: center;
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
}

.page-download__image-content {
    width: 100%;
    height: auto;
    display: block;
    border-radius: 10px;
    margin: 40px auto;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
    max-width: 800px; /* Đảm bảo hình ảnh không quá lớn */
}

/* Download Guide Section */
.page-download__download-guide-section {
    padding: 60px 0;
    background: var(--card-bg);
}

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

.page-download__guide-item {
    background: var(--background);
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
    text-align: center;
    border: 1px solid var(--border);
}

.page-download__guide-title {
    font-size: 24px;
    font-weight: 700;
    color: var(--glow);
    margin-bottom: 15px;
}

.page-download__guide-description {
    font-size: 16px;
    color: var(--text-secondary);
    margin-bottom: 20px;
}

.page-download__btn-inline {
    margin-top: 15px;
}

/* Features Section */
.page-download__features-section {
    padding: 60px 0;
    background: var(--background);
}

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

.page-download__feature-card {
    background: var(--card-bg);
    padding: 25px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
    text-align: center;
    border: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    align-items: center;
}

.page-download__card-image {
    width: 100%;
    height: auto;
    max-height: 250px; /* Giới hạn chiều cao cho card image */
    object-fit: cover;
    border-radius: 8px;
    margin-bottom: 20px;
}

.page-download__card-title {
    font-size: 22px;
    font-weight: 700;
    color: var(--text-main);
    margin-bottom: 10px;
    line-height: 1.3;
}

.page-download__card-description {
    font-size: 16px;
    color: var(--text-secondary);
}

/* Safety Section */
.page-download__safety-section {
    padding: 60px 0;
    background: var(--card-bg);
}

.page-download__safety-list {
    list-style: none;
    padding: 0;
    margin-top: 40px;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
}

.page-download__safety-item {
    background: var(--background);
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 3px 10px rgba(0, 0, 0, 0.2);
    color: var(--text-secondary);
    font-size: 17px;
    border-left: 5px solid var(--glow);
}

.page-download__safety-item strong {
    color: var(--text-main);
    font-size: 18px;
}

/* FAQ Section */
.page-download__faq-section {
    padding: 60px 0;
    background: var(--background);
}

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

.page-download__faq-item {
    background: var(--card-bg);
    margin-bottom: 15px;
    border-radius: 8px;
    border: 1px solid var(--border);
    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: 18px;
    font-weight: 600;
    color: var(--text-main);
    cursor: pointer;
    background: var(--card-bg);
    border-bottom: 1px solid var(--divider);
}

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

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

.page-download__faq-toggle {
    font-size: 24px;
    line-height: 1;
    margin-left: 15px;
    color: var(--glow);
}

.page-download__faq-item[open] .page-download__faq-question {
    border-bottom-color: transparent;
}

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

.page-download__faq-answer {
    padding: 20px 25px;
    font-size: 16px;
    color: var(--text-secondary);
    background: var(--background);
    border-top: 1px solid var(--divider);
}

/* Final CTA Section */
.page-download__cta-section {
    padding: 60px 0;
    text-align: center;
    background: var(--card-bg);
}

.page-download__cta-section .page-download__text-block {
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
    margin-bottom: 40px;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .page-download__hero-title {
        font-size: clamp(30px, 4.5vw, 50px);
    }
    .page-download__hero-description {
        font-size: 18px;
    }
    .page-download__section-title {
        font-size: clamp(26px, 3.5vw, 38px);
    }
    .page-download__text-block, .page-download__guide-description, .page-download__card-description, .page-download__safety-item p, .page-download__faq-answer p {
        font-size: 16px;
    }
}

@media (max-width: 768px) {
    .page-download__hero-section {
        padding: 40px 15px;
    }
    .page-download__hero-content {
        padding: 15px;
    }
    .page-download__hero-image-wrapper {
        margin-bottom: 20px;
    }
    .page-download__hero-title {
        font-size: clamp(28px, 8vw, 40px) !important;
    }
    .page-download__hero-description {
        font-size: 16px;
    }
    .page-download__cta-buttons {
        flex-direction: column;
        gap: 15px;
        width: 100%;
        padding: 0 15px;
        box-sizing: border-box !important;
    }
    .page-download__btn-primary,
    .page-download__btn-secondary {
        width: 100% !important;
        max-width: 100% !important;
        padding: 12px 20px;
        font-size: 16px;
    }

    .page-download__section-title {
        font-size: clamp(24px, 7vw, 32px);
        margin-bottom: 30px;
    }
    .page-download__introduction-section,
    .page-download__download-guide-section,
    .page-download__features-section,
    .page-download__safety-section,
    .page-download__faq-section,
    .page-download__cta-section {
        padding: 40px 0;
    }
    .page-download__container {
        padding: 0 15px;
    }

    .page-download img {
        max-width: 100% !important;
        width: 100% !important;
        height: auto !important;
        display: block !important;
    }
    .page-download__section,
    .page-download__card,
    .page-download__container {
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
        padding-left: 15px;
        padding-right: 15px;
    }
    .page-download__video-section {
        padding-top: 10px !important; /* body đã承担 --header-offset */
    }

    .page-download__guide-steps, .page-download__features-grid, .page-download__safety-list {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .page-download__faq-question {
        padding: 15px 20px;
        font-size: 16px;
    }
    .page-download__faq-answer {
        padding: 15px 20px;
        font-size: 15px;
    }
}

@media (max-width: 480px) {
    .page-download__hero-title {
        font-size: clamp(24px, 9vw, 32px) !important;
    }
    .page-download__hero-description {
        font-size: 15px;
    }
    .page-download__section-title {
        font-size: clamp(22px, 8vw, 28px);
    }
    .page-download__text-block, .page-download__guide-description, .page-download__card-description, .page-download__safety-item p, .page-download__faq-answer p {
        font-size: 14px;
    }
    .page-download__btn-primary,
    .page-download__btn-secondary {
        font-size: 15px;
        padding: 10px 15px;
    }
    .page-download__guide-item, .page-download__feature-card, .page-download__safety-item {
        padding: 20px;
    }
    .page-download__card-title {
        font-size: 20px;
    }
    .page-download__faq-question {
        font-size: 15px;
    }
}