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

body, html {
    height: 100%;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    display: flex;
    justify-content: center;
    align-items: center;
    background: linear-gradient(135deg, #a1c4fd, #c2e9fb);
    animation: backgroundFade 5s infinite alternate ease-in-out;
}

.container {
    background-color: #fff;
    padding: 30px 20px;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    text-align: center;
    max-width: 400px;
    width: 100%;
    animation: slideIn 1s ease forwards;
}

h1 {
    font-size: 28px;
    margin-bottom: 20px;
    color: #333;
    letter-spacing: 1px;
}

input[type="text"] {
    width: 100%;
    padding: 12px;
    font-size: 12px;
    border: 2px solid #ddd;
    border-radius: 8px;
    transition: border-color 0.3s, box-shadow 0.3s;
    margin-bottom: 20px;
}

input[type="text"]:focus {
    border-color: #007bff;
    box-shadow: 0 0 8px rgba(0, 123, 255, 0.5);
    outline: none;
}

button {
    background-color: #007bff;
    color: white;
    border: none;
    padding: 12px 25px;
    border-radius: 8px;
    font-size: 16px;
    cursor: pointer;
    transition: background-color 0.3s, transform 0.3s;
}

button:hover {
    background-color: #0056b3;
    transform: translateY(-3px);
}

button:active {
    transform: translateY(0);
}

#verificationResult {
    margin-top: 20px;
    font-size: 18px;
    color: #333;
}

/* Keyframe Animations */
@keyframes slideIn {
    0% {
        opacity: 0;
        transform: translateY(-50px);
    }
    100% {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes backgroundFade {
    0% {
        background: linear-gradient(135deg, #a1c4fd, #c2e9fb);
    }
    100% {
        background: linear-gradient(135deg, #89f7fe, #66a6ff);
    }
}

/* Media Queries for Mobile */
@media only screen and (max-width: 600px) {
    .container {
        padding: 20px 15px;
        max-width: 100%;
    }

    h1 {
        font-size: 24px;
    }

    input[type="text"] {
        font-size: 14px;
        padding: 10px;
    }

    button {
        font-size: 14px;
        padding: 10px 20px;
    }
}