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

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Helvetica Neue', sans-serif;
    line-height: 1.6;
    color: #333;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Container */
.container {
    width: 100%;
    max-width: 1200px;
    padding: 2rem;
}

/* Content card */
.content {
    background: white;
    border-radius: 12px;
    padding: 3rem 2rem;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    text-align: center;
    animation: fadeIn 0.6s ease-out;
}

/* Heading */
h1 {
    font-size: 2.5rem;
    font-weight: 700;
    color: #2d3748;
    letter-spacing: -0.5px;
}

/* Fade in animation */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Responsive design */
@media (max-width: 768px) {
    .content {
        padding: 2rem 1.5rem;
    }
    
    h1 {
        font-size: 2rem;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 1rem;
    }
    
    .content {
        padding: 1.5rem 1rem;
        border-radius: 8px;
    }
    
    h1 {
        font-size: 1.5rem;
    }
}