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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.container {
    max-width: 800px;
    width: 100%;
}

.header {
    text-align: center;
    margin-bottom: 2rem;
    color: white;
}

.header h1 {
    font-size: 3rem;
    margin-bottom: 0.5rem;
    text-shadow: 0 2px 10px rgba(0,0,0,0.3);
}

.header p {
    font-size: 1.2rem;
    opacity: 0.9;
}

.app-display {
    background: white;
    border-radius: 20px;
    box-shadow: 0 20px 40px rgba(0,0,0,0.2);
    overflow: hidden;
    min-height: 400px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.loading {
    text-align: center;
    color: #666;
}

.spinner {
    width: 50px;
    height: 50px;
    border: 4px solid #f3f3f3;
    border-top: 4px solid #667eea;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 1rem;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.app-card {
    width: 100%;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    padding: 2rem;
    animation: fadeIn 0.5s ease-out;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.app-image {
    position: relative;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 10px 25px rgba(0,0,0,0.15);
    aspect-ratio: 16/10;
}

.app-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.app-image:hover img {
    transform: scale(1.05);
}

.app-info {
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.app-info h2 {
    font-size: 2rem;
    color: #333;
    margin-bottom: 1rem;
    line-height: 1.2;
}

.app-info p {
    color: #666;
    font-size: 1.1rem;
    line-height: 1.6;
    margin-bottom: 1.5rem;
}

.app-stats {
    display: flex;
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.stat {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: #777;
    font-weight: 600;
}

.stat .icon {
    font-size: 1.2rem;
}

.app-actions {
    display: flex;
    gap: 1rem;
}

.btn-primary, .btn-secondary {
    padding: 12px 24px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    font-size: 1rem;
    border: none;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-primary {
    background: linear-gradient(135deg, #667eea, #764ba2);
    color: white;
    flex: 1;
    text-align: center;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(102, 126, 234, 0.3);
}

.btn-secondary {
    background: #f8f9fa;
    color: #333;
    border: 2px solid #e9ecef;
}

.btn-secondary:hover {
    background: #e9ecef;
    transform: translateY(-1px);
}

.error {
    text-align: center;
    color: #666;
    padding: 3rem 2rem;
}

.error-icon {
    font-size: 4rem;
    margin-bottom: 1rem;
}

.error h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: #333;
}

.error p {
    line-height: 1.6;
}

@media (max-width: 768px) {
    .header h1 {
        font-size: 2rem;
    }
    
    .header p {
        font-size: 1rem;
    }
    
    .app-card {
        grid-template-columns: 1fr;
        gap: 1.5rem;
        padding: 1.5rem;
    }
    
    .app-actions {
        flex-direction: column;
    }
    
    .btn-primary, .btn-secondary {
        text-align: center;
    }
}