* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    padding: 20px;
    color: #333;
}

.container {
    max-width: 600px;
    margin: 0 auto;
    padding: 40px 20px;
}

.app-card {
    background: white;
    border-radius: 20px;
    padding: 40px 30px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    text-align: center;
}

.app-icon {
    width: 120px;
    height: 120px;
    margin: 0 auto 20px;
    border-radius: 25px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

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

.icon-placeholder {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 48px;
    font-weight: bold;
    color: white;
}

.app-name {
    font-size: 42px;
    font-weight: 700;
    margin-bottom: 30px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.download-buttons {
    display: flex;
    flex-direction: column;
    gap: 15px;
    margin-bottom: 40px;
}

.btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    padding: 18px 30px;
    border-radius: 12px;
    text-decoration: none;
    font-size: 18px;
    font-weight: 600;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.btn-android {
    background: #4CAF50;
    color: white;
}

.btn-android:hover {
    background: #45a049;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(76, 175, 80, 0.4);
}

.btn-ios {
    background: #007AFF;
    color: white;
}

.btn-ios:hover {
    background: #0056b3;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 122, 255, 0.4);
}

.btn-icon {
    font-size: 24px;
}

.ios-tutorial {
    text-align: left;
    margin-top: 40px;
    padding-top: 30px;
    border-top: 2px solid #eee;
}

.ios-tutorial h3 {
    font-size: 22px;
    margin-bottom: 20px;
    color: #333;
}

.tutorial-steps {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.step {
    display: flex;
    gap: 15px;
    align-items: flex-start;
}

.step-number {
    flex-shrink: 0;
    width: 32px;
    height: 32px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    font-size: 16px;
}

.step-content h4 {
    font-size: 16px;
    margin-bottom: 5px;
    color: #333;
}

.step-content p {
    font-size: 14px;
    color: #666;
    line-height: 1.6;
}

.admin-link {
    margin-top: 30px;
    padding-top: 20px;
    border-top: 1px solid #eee;
}

.admin-btn {
    display: inline-block;
    padding: 12px 24px;
    background: #f0f0f0;
    color: #333;
    text-decoration: none;
    border-radius: 8px;
    font-size: 14px;
    transition: all 0.3s ease;
}

.admin-btn:hover {
    background: #e0e0e0;
    transform: translateY(-1px);
}

@media (max-width: 480px) {
    .container {
        padding: 20px 10px;
    }
    
    .app-card {
        padding: 30px 20px;
    }
    
    .app-name {
        font-size: 32px;
    }
    
    .btn {
        padding: 15px 25px;
        font-size: 16px;
    }
}