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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    background-color: #f5f5f5;
    color: #333;
    line-height: 1.6;
}

.container {
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 20px;
}

.message-box {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    max-width: 600px;
    width: 100%;
    text-align: center;
}

h1 {
    color: #e74c3c;
    margin-bottom: 1rem;
    font-size: 1.8rem;
}

p {
    font-size: 1.1rem;
    color: #2c3e50;
    margin-bottom: 1rem;
}

@media (max-width: 480px) {
    .message-box {
        padding: 1.5rem;
    }

    h1 {
        font-size: 1.5rem;
    }

    p {
        font-size: 1rem;
    }
}