* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

body {
    background-color: #f5f5f5;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
}

.card {
    background: white;
    border-radius: 1rem;
    padding: 1.5rem;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
    max-width: 400px;
    width: 100%;
    position: relative;
    overflow: hidden;
}

.app-header {
    display: flex;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.app-icon {
    width: 80px;
    height: 80px;
    border-radius: 1rem;
    object-fit: cover;
    background-color: #0066ff;
    padding: 0.5rem;
}

.app-info {
    flex: 1;
}

.app-title {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.rating {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
}

.rating-score {
    color: #f90;
    font-weight: 600;
}

.rating-count {
    color: #666;
    font-size: 0.9rem;
}

.version {
    color: #2e7d32;
    font-size: 0.9rem;
    margin-bottom: 0.25rem;
}

.developer {
    color: #666;
    font-size: 0.9rem;
}

.date {
    color: #666;
    font-size: 0.9rem;
}

.urgency-banner {
    background: #fef6e6;
    border: 1px solid #fde3b9;
    border-radius: 0.5rem;
    padding: 0.75rem;
    margin: 1rem 0;
    display: flex;
    align-items: center;
    justify-content: center;
}

.active-users {
    font-size: 0.9rem;
    color: #666;
    animation: fadeInOut 2s infinite;
}

@keyframes fadeInOut {
    0% { opacity: 0.6; }
    50% { opacity: 1; }
    100% { opacity: 0.6; }
}

.button {
    display: block;
    width: 100%;
    padding: 0.875rem;
    border-radius: 0.5rem;
    border: none;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    text-align: center;
    text-decoration: none;
    margin-bottom: 0.75rem;
    transition: transform 0.2s, box-shadow 0.2s;
}

.button-primary {
    background-color: #2e7d32;
    color: white;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% {
        box-shadow: 0 0 0 0 rgba(46, 125, 50, 0.4);
    }
    70% {
        box-shadow: 0 0 0 10px rgba(46, 125, 50, 0);
    }
    100% {
        box-shadow: 0 0 0 0 rgba(46, 125, 50, 0);
    }
}

.button-primary:hover {
    background-color: #1b5e20;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(46, 125, 50, 0.4);
}

.button-secondary {
    background-color: #e8f5e9;
    color: #2e7d32;
}

.button-secondary:hover {
    background-color: #c8e6c9;
}

.security-badge {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    color: #0066ff;
    font-size: 0.8rem;
    margin-top: 1rem;
    padding: 0.5rem;
    background: #f0f7ff;
    border-radius: 0.5rem;
    border: 1px solid #cce4ff;
}

.security-badge img {
    width: 20px;
    height: 20px;
}