body {
    font-family: 'Roboto', sans-serif;
    background-color: #2c3e50;
    color: #ecf0f1;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
    text-align: center;
}

.container {
    background: #34495e;
    padding: 40px;
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.4);
    max-width: 600px;
    width: 90%;
    animation: fadeIn 1.5s ease-in-out;
}

.main-title {
    font-size: 2.5em;
    color: #e74c3c;
    margin-bottom: 20px;
}

.message {
    font-size: 1.2em;
    margin-bottom: 30px;
}

.data-notice {
    font-size: 0.9em;
    color: #bdc3c7;
    line-height: 1.5;
}

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