body {
    font-family: "Poppins", sans-serif;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
    background-image: linear-gradient(45deg, #ff8c00, #ff6f61);
    animation: backgroundMove 5s infinite linear;
}

@keyframes backgroundMove {
    0% {
        background-image: linear-gradient(45deg, #ff8c00, #ff6f61);
    }

    50% {
        background-image: linear-gradient(45deg, #ff6f61, #ff8c00);
    }

    100% {
        background-image: linear-gradient(45deg, #ff8c00, #ff6f61);
    }
}

.container {
    background-color: rgba(255, 255, 255, 0.8);
    padding: 30px;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    text-align: center;
    width: 100%;
    max-width: 400px;
}

h1 {
    font-family: "Roboto", sans-serif;
    color: #3f3f3f;
    margin-bottom: 20px;
    font-size: 36px;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.2);
}

.input-group {
    display: flex;
    justify-content: space-between;
    gap: 15px;
    margin: 25px 0;
}

input {
    width: 70px;
    padding: 12px;
    border: 2px solid #eee;
    border-radius: 8px;
    font-size: 18px;
    text-align: center;
    background-color: #fff;
    transition: all 0.3s ease;
}

input:focus {
    outline: none;
    border-color: #ff8c00;
    background-color: #fffaf0;
}

button {
    padding: 12px 25px;
    background-color: #ff8c00;
    color: #fff;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-size: 18px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
    transition: background-color 0.3s, transform 0.3s;
}

button:hover {
    background-color: #ff6f61;
    transform: translateY(-2px);
}

#result {
    margin-top: 20px;
    padding: 15px;
    font-size: 18px;
    border-radius: 8px;
    font-weight: 600;
}

.error {
    background-color: #ffebee;
    color: #d32f2f;
    border: 2px solid #d32f2f;
}

.success {
    background-color: #e8f5e9;
    color: #388e3c;
    border: 2px solid #388e3c;
}

.highlight {
    font-weight: bold;
    color: #ff6f61;
}