body {
    font-family: 'Poppins', sans-serif;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    background: linear-gradient(135deg, #1e3c72, #2a5298);
    color: white;
    text-align: center;
}

.container {
    background: rgba(255, 255, 255, 0.1);
    padding: 20px;
    border-radius: 15px;
    box-shadow: 0 0 15px rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    animation: fadeIn 1s ease-in-out;
}

@keyframes fadeIn {
    from { opacity: 0; transform: scale(0.9); }
    to { opacity: 1; transform: scale(1); }
}

input, button {
    padding: 10px;
    margin: 10px;
    border: none;
    border-radius: 5px;
    outline: none;
    text-align: center;
    transition: 0.3s;
}

button {
    background: #ff4b2b;
    color: white;
    font-size: 16px;
    font-weight: bold;
    cursor: pointer;
    transition: 0.3s;
}

button:hover {
    background: #ff6b3b;
}

#result-message {
    font-size: 18px;
    font-weight: bold;
    margin-top: 15px;
    transition: 0.3s;
}

.warning {
    color: #ffcc00;
    animation: blink 1s infinite;
}

@keyframes blink {
    50% { opacity: 0.5; }
}

.safe {
    color: #00ff00;
}