body {
    display: flex;
    justify-content: center;
    align-items: center;
}

.container {
    text-align: center;
    padding: 40px;
    max-width: 500px;
    width: 90%;
}

.app-icon {
    width: 150px;
    height: 150px;
    margin: 0 auto 30px;
    display: flex;
    justify-content: center;
    align-items: center;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    border-radius: 30px;
    overflow: hidden;
}

.app-icon img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

h1 {
    font-size: 28px;
    margin-bottom: 10px;
}

.version {
    color: #aaa;
    margin-bottom: 20px;
    font-size: 14px;
}

.description {
    color: #ccc;
    line-height: 1.8;
    margin-bottom: 30px;
    font-size: 16px;
}

.download-btn {
    display: inline-block;
    background: linear-gradient(135deg, #28a745, #1e7e34);
    color: #fff;
    text-decoration: none;
    padding: 15px 50px;
    border-radius: 50px;
    font-size: 18px;
    font-weight: bold;
    transition: transform 0.3s, box-shadow 0.3s;
    box-shadow: 0 5px 20px rgba(40, 167, 69, 0.4);
}

.download-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 30px rgba(40, 167, 69, 0.6);
}

.info {
    margin-top: 30px;
    color: #888;
    font-size: 13px;
}

.info span {
    margin: 0 10px;
}

.footer-links {
    margin-top: 30px;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-links a {
    color: #888;
    text-decoration: none;
    margin: 0 10px;
    font-size: 13px;
    transition: color 0.3s;
}

.footer-links a:hover {
    color: #28a745;
}

.brand {
    margin-top: 30px;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.brand img {
    width: 120px;
    height: auto;
    opacity: 0.7;
    transition: opacity 0.3s;
}

.brand img:hover {
    opacity: 1;
}

.features-section, .platforms-section, .howto-section {
    margin-top: 50px;
    text-align: center;
}

.features-section h2, .platforms-section h2, .howto-section h2 {
    font-size: 22px;
    margin-bottom: 30px;
    color: #fff;
}

.features-grid, .platforms-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    margin-bottom: 30px;
}

.feature-item, .platform-item {
    background: rgba(255, 255, 255, 0.05);
    padding: 20px;
    border-radius: 15px;
    transition: transform 0.3s, background 0.3s;
}

.feature-item:hover, .platform-item:hover {
    transform: translateY(-5px);
    background: rgba(255, 255, 255, 0.1);
}

.feature-icon, .platform-icon {
    font-size: 30px;
    display: block;
    margin-bottom: 10px;
}

.feature-item h3, .platform-item h3 {
    font-size: 16px;
    margin-bottom: 8px;
    color: #28a745;
}

.feature-item p, .platform-item p {
    font-size: 13px;
    color: #aaa;
    line-height: 1.5;
}

.howto-steps {
    display: flex;
    flex-direction: column;
    gap: 20px;
    max-width: 400px;
    margin: 0 auto;
}

.howto-step {
    display: flex;
    align-items: center;
    gap: 15px;
    background: rgba(255, 255, 255, 0.05);
    padding: 15px 20px;
    border-radius: 12px;
    text-align: right;
}

.step-number {
    background: linear-gradient(135deg, #28a745, #1e7e34);
    color: #fff;
    width: 35px;
    height: 35px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    font-size: 16px;
    flex-shrink: 0;
}

.howto-step p {
    font-size: 14px;
    color: #ccc;
    margin: 0;
}

.why-section, .faq-section {
    margin-top: 50px;
    text-align: center;
}

.why-section h2, .faq-section h2 {
    font-size: 22px;
    margin-bottom: 30px;
    color: #fff;
}

.why-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    margin-bottom: 30px;
}

.why-item {
    background: rgba(255, 255, 255, 0.05);
    padding: 20px;
    border-radius: 15px;
    transition: transform 0.3s, background 0.3s;
}

.why-item:hover {
    transform: translateY(-5px);
    background: rgba(255, 255, 255, 0.1);
}

.why-icon {
    font-size: 30px;
    display: block;
    margin-bottom: 10px;
}

.why-item h3 {
    font-size: 16px;
    margin-bottom: 8px;
    color: #28a745;
}

.why-item p {
    font-size: 13px;
    color: #aaa;
    line-height: 1.5;
}

.faq-list {
    display: flex;
    flex-direction: column;
    gap: 20px;
    max-width: 500px;
    margin: 0 auto;
    text-align: right;
}

.faq-item {
    background: rgba(255, 255, 255, 0.05);
    padding: 20px;
    border-radius: 12px;
    transition: background 0.3s;
}

.faq-item:hover {
    background: rgba(255, 255, 255, 0.1);
}

.faq-item h3 {
    font-size: 16px;
    margin-bottom: 10px;
    color: #28a745;
}

.faq-item p {
    font-size: 14px;
    color: #ccc;
    line-height: 1.6;
    margin: 0;
}