body {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    margin: 0;
    background-color: #f4f4f9;
    font-family: 'Poppins', sans-serif;
}

h1 {
    font-size: 3rem;
    font-weight: 600;
    color: #333;
    text-align: center;
    margin-bottom: 20px;
}

.vin-input {
    width: 300px;
    padding: 10px 15px;
    font-size: 1rem;
    border: 1px solid #ccc;
    border-radius: 5px;
    margin-bottom: 15px;
    outline: none;
    transition: border-color 0.3s ease;
}

.vin-input:focus {
    border-color: #333;
}

.submit-btn {
    padding: 10px 20px;
    font-size: 1rem;
    font-weight: 600;
    color: #fff;
    background-color: #333;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.submit-btn:hover {
    background-color: #555;
}

.card-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 20px;
    margin-top: 30px;
    width: 90%;
    max-width: 800px;
}

.card {
    background-color: #fff;
    border: 1px solid #ccc;
    border-radius: 8px;
    padding: 15px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    text-align: center;
    font-size: 1rem;
    color: #333;
}

.card-title {
    font-weight: 600;
    margin-bottom: 5px;
}

.card-value {
    font-weight: 400;
    color: #555;
}

#warning-message {
    display: none;
    color: red;
    font-size: 1rem;
    font-weight: 600;
    margin-top: 10px;
    text-align: center;
}