/* style/app-download.css */
.page-app-download {
    font-family: 'Arial', sans-serif;
    color: #f0f0f0; /* Light gray for general text on dark background */
    line-height: 1.6;
    background-color: #1a1a1a; /* Dark background for contrast */
}

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

.page-app-download__hero-section {
    background: linear-gradient(135deg, #CC0000 0%, #800000 100%); /* Deep red gradient */
    padding: 100px 0;
    text-align: center;
    color: #ffffff;
    position: relative;
    overflow: hidden;
}

.page-app-download__hero-title {
    font-size: 3.5em;
    margin-bottom: 20px;
    font-weight: bold;
    color: #FFD700; /* Gold for main title */
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
}

.page-app-download__hero-description {
    font-size: 1.3em;
    max-width: 800px;
    margin: 0 auto 40px;
    color: #f0f0f0;
}

.page-app-download__download-buttons {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.page-app-download__btn {
    display: inline-flex;
    align-items: center;
    padding: 15px 30px;
    border-radius: 8px;
    font-size: 1.2em;
    font-weight: bold;
    text-decoration: none;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.page-app-download__btn--primary {
    background-color: #FFD700; /* Gold button */
    color: #CC0000; /* Deep red text */
    border: 2px solid #FFD700;
}

.page-app-download__btn--primary:hover {
    background-color: #e6c200;
    color: #990000;
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
}

.page-app-download__btn--secondary {
    background-color: #CC0000; /* Deep red button */
    color: #ffffff; /* White text */
    border: 2px solid #CC0000;
}

.page-app-download__btn--secondary:hover {
    background-color: #990000;
    color: #FFD700;
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
}

.page-app-download__icon {
    margin-right: 10px;
    font-size: 1.5em;
}

/* Basic icon placeholders (can be replaced with actual SVG/font icons) */
.page-app-download__icon--apple::before {
    content: '\f179'; /* FontAwesome Apple icon */
    font-family: 'Font Awesome 5 Brands'; /* Requires FontAwesome */
}
.page-app-download__icon--android::before {
    content: '\f17b'; /* FontAwesome Android icon */
    font-family: 'Font Awesome 5 Brands'; /* Requires FontAwesome */
}

.page-app-download__qr-codes {
    display: flex;
    justify-content: center;
    gap: 50px;
    margin-top: 30px;
    flex-wrap: wrap;
}

.page-app-download__qr-item {
    text-align: center;
    background-color: rgba(0, 0, 0, 0.3);
    padding: 15px;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

.page-app-download__qr-image {
    width: 150px;
    height: 150px;
    border: 5px solid #FFD700;
    border-radius: 5px;
    display: block;
    margin: 0 auto 10px;
}

.page-app-download__qr-item p {
    color: #ffffff;
    font-size: 1.1em;
    font-weight: 500;
}

.page-app-download__note {
    font-size: 0.9em;
    color: #cccccc;
    margin-top: 30px;
}

.page-app-download__section-title {
    font-size: 2.5em;
    color: #FFD700; /* Gold for section titles */
    text-align: center;
    margin-bottom: 30px;
    padding-top: 60px;
    font-weight: bold;
    text-shadow: 1px 1px 3px rgba(0, 0, 0, 0.4);
}

.page-app-download__section-description {
    font-size: 1.1em;
    text-align: center;
    max-width: 900px;
    margin: 0 auto 50px;
    color: #cccccc;
}

.page-app-download__highlight {
    color: #FFD700;
}

/* Benefits Section */
.page-app-download__benefits-section {
    background-color: #2a2a2a;
    padding: 80px 0;
}

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

.page-app-download__benefit-card {
    background-color: #333333;
    padding: 30px;
    border-radius: 12px;
    text-align: center;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.4);
    transition: transform 0.3s ease, background-color 0.3s ease;
    border: 1px solid rgba(255, 215, 0, 0.2);
}

.page-app-download__benefit-card:hover {
    transform: translateY(-10px);
    background-color: #444444;
}

.page-app-download__benefit-icon {
    width: 80px;
    height: 80px;
    margin-bottom: 20px;
    filter: drop-shadow(0 0 5px #FFD700);
}

.page-app-download__benefit-card h3 {
    font-size: 1.8em;
    color: #FFD700; /* Gold for benefit titles */
    margin-bottom: 15px;
    font-weight: bold;
}

.page-app-download__benefit-card p {
    font-size: 1em;
    color: #cccccc;
}

/* Installation Guide Section */
.page-app-download__installation-guide-section {
    background-color: #1a1a1a;
    padding: 80px 0;
}

.page-app-download__platform-guide {
    background-color: #2a2a2a;
    padding: 40px;
    border-radius: 12px;
    margin-bottom: 40px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.4);
    border: 1px solid rgba(204, 0, 0, 0.3);
}

.page-app-download__platform-guide h3 {
    font-size: 2em;
    color: #CC0000; /* Deep red for platform titles */
    margin-bottom: 30px;
    text-align: center;
    font-weight: bold;
}

.page-app-download__platform-guide ol {
    list-style: none;
    counter-reset: step-counter;
    padding: 0;
}

.page-app-download__platform-guide li {
    margin-bottom: 40px;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.page-app-download__platform-guide li::before {
    counter-increment: step-counter;
    content: "Bước " counter(step-counter) ":";
    font-size: 1.5em;
    font-weight: bold;
    color: #FFD700; /* Gold for step number */
    margin-bottom: 15px;
    background-color: #CC0000;
    border-radius: 50%;
    width: 60px;
    height: 60px;
    display: flex;
    justify-content: center;
    align-items: center;
    color: #ffffff;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.5);
}

.page-app-download__platform-guide li h3 {
    font-size: 1.5em;
    color: #FFD700;
    margin-top: 0;
    margin-bottom: 10px;
}

.page-app-download__platform-guide li p {
    font-size: 1.1em;
    color: #cccccc;
    max-width: 700px;
    margin-bottom: 20px;
}

.page-app-download__guide-image {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.5);
    margin-top: 20px;
    border: 3px solid #CC0000;
}

/* Exclusive Offers Section */
.page-app-download__exclusive-offers-section {
    background-color: #2a2a2a;
    padding: 80px 0;
}

.page-app-download__offers-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-bottom: 50px;
}

.page-app-download__offer-card {
    background-color: #333333;
    padding: 30px;
    border-radius: 12px;
    text-align: center;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.4);
    transition: transform 0.3s ease, background-color 0.3s ease;
    border: 1px solid rgba(255, 215, 0, 0.2);
}

.page-app-download__offer-card:hover {
    transform: translateY(-10px);
    background-color: #444444;
}

.page-app-download__offer-image {
    width: 100px;
    height: 100px;
    margin-bottom: 20px;
    filter: drop-shadow(0 0 8px #CC0000);
}

.page-app-download__offer-card h3 {
    font-size: 1.8em;
    color: #CC0000; /* Deep red for offer titles */
    margin-bottom: 15px;
    font-weight: bold;
}

.page-app-download__offer-card p {
    font-size: 1em;
    color: #cccccc;
}

.page-app-download__cta-bottom {
    text-align: center;
    margin-top: 50px;
}

.page-app-download__cta-bottom p {
    font-size: 1.2em;
    color: #f0f0f0;
    margin-bottom: 30px;
}

/* FAQ Section */
.page-app-download__faq-section {
    background-color: #1a1a1a;
    padding: 80px 0;
}

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

.page-app-download__faq-item {
    background-color: #2a2a2a;
    border: 1px solid rgba(255, 215, 0, 0.2);
    border-radius: 10px;
    margin-bottom: 20px;
    padding: 25px 30px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

.page-app-download__faq-item h3 {
    font-size: 1.4em;
    color: #FFD700; /* Gold for FAQ questions */
    margin-top: 0;
    margin-bottom: 10px;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-weight: bold;
}

.page-app-download__faq-item h3::after {
    content: '+';
    font-size: 1.2em;
    transition: transform 0.3s ease;
}

.page-app-download__faq-item.active h3::after {
    content: '-';
    transform: rotate(180deg);
}

.page-app-download__faq-item p {
    font-size: 1em;
    color: #cccccc;
    margin-top: 15px;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.5s ease-out, margin-top 0.5s ease-out;
}

.page-app-download__faq-item.active p {
    max-height: 200px; /* Adjust as needed for content length */
    margin-top: 15px;
}

/* Final CTA Section */
.page-app-download__cta-final-section {
    background: linear-gradient(135deg, #CC0000 0%, #FFD700 100%); /* Red to gold gradient */
    padding: 80px 0;
    text-align: center;
    color: #ffffff;
}

.page-app-download__cta-final-section .page-app-download__section-title {
    color: #ffffff; /* White for final CTA title */
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
}

.page-app-download__cta-final-section .page-app-download__section-description {
    color: #f0f0f0;
    margin-bottom: 40px;
}

.page-app-download__small-print {
    font-size: 0.85em;
    color: rgba(255, 255, 255, 0.8);
    margin-top: 30px;
}

/* Responsive Design */
@media (max-width: 992px) {
    .page-app-download__hero-title {
        font-size: 2.8em;
    }
    .page-app-download__section-title {
        font-size: 2em;
    }
    .page-app-download__benefits-grid, .page-app-download__offers-grid {
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    }
    .page-app-download__download-buttons {
        flex-direction: column;
        align-items: center;
    }
}

@media (max-width: 768px) {
    .page-app-download__hero-title {
        font-size: 2.2em;
    }
    .page-app-download__hero-description {
        font-size: 1.1em;
    }
    .page-app-download__btn {
        width: 80%;
        max-width: 300px;
    }
    .page-app-download__qr-codes {
        flex-direction: column;
        gap: 30px;
    }
    .page-app-download__section-title {
        font-size: 1.8em;
    }
    .page-app-download__platform-guide {
        padding: 25px;
    }
    .page-app-download__platform-guide li::before {
        width: 50px;
        height: 50px;
        font-size: 1.3em;
    }
    .page-app-download__faq-item h3 {
        font-size: 1.2em;
    }
}

@media (max-width: 480px) {
    .page-app-download__hero-title {
        font-size: 1.8em;
    }
    .page-app-download__hero-description {
        font-size: 1em;
    }
    .page-app-download__btn {
        font-size: 1em;
        padding: 12px 20px;
    }
    .page-app-download__qr-image {
        width: 120px;
        height: 120px;
    }
    .page-app-download__section-title {
        font-size: 1.5em;
    }
    .page-app-download__benefit-card h3, .page-app-download__offer-card h3 {
        font-size: 1.5em;
    }
    .page-app-download__platform-guide h3 {
        font-size: 1.6em;
    }
    .page-app-download__faq-item p {
        font-size: 0.9em;
    }
}