/* Reset and base styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #333;
}

.container {
    padding: 2rem;
}

.hello-card {
    background: white;
    padding: 3rem 2rem;
    border-radius: 20px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    text-align: center;
    max-width: 400px;
    transform: translateY(0);
    transition: transform 0.3s ease;
}

.hello-card:hover {
    transform: translateY(-5px);
}

.globe-icon {
    width: 48px;
    height: 48px;
    color: #667eea;
    margin-bottom: 1rem;
}

h1 {
    font-size: 2.5rem;
    font-weight: 700;
    color: #2d3748;
    margin-bottom: 0.5rem;
}

p {
    font-size: 1.1rem;
    color: #718096;
    margin-bottom: 2rem;
}

.btn {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    padding: 12px 24px;
    border-radius: 50px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.3);
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(102, 126, 234, 0.4);
}

.btn:active {
    transform: translateY(0);
}

.btn i {
    width: 18px;
    height: 18px;
}

.message {
    margin-top: 1.5rem;
    padding: 1rem;
    background: #f7fafc;
    border-radius: 10px;
    border-left: 4px solid #667eea;
    color: #2d3748;
    font-weight: 500;
    opacity: 1;
    transform: translateY(0);
    transition: all 0.3s ease;
}

.message.hidden {
    opacity: 0;
    transform: translateY(-10px);
    display: none;
}

/* Responsive design */
@media (max-width: 480px) {
    .container {
        padding: 1rem;
    }
    
    .hello-card {
        padding: 2rem 1.5rem;
    }
    
    h1 {
        font-size: 2rem;
    }
}