body {
    font-family: Arial, sans-serif;
    background: #f4f6f9;
    margin: 0;
    padding: 20px;
}

.container {
    max-width: 500px;
    margin: auto;
    background: white;
    padding: 25px;
    border-radius: 12px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

h1 {
    text-align: center;
    margin-bottom: 10px;
}

.subtext {
    text-align: center;
    color: #666;
    margin-bottom: 20px;
}

input {
    width: 100%;
    padding: 12px;
    margin-bottom: 12px;
    border: 1px solid #ddd;
    border-radius: 8px;
    box-sizing: border-box;
}

button {
    width: 100%;
    padding: 12px;
    border: none;
    border-radius: 8px;
    background: #2563eb;
    color: white;
    font-size: 16px;
    cursor: pointer;
}

button:hover {
    opacity: 0.9;
}

.result {
    margin-top: 20px;
    padding: 15px;
    background: #f8fafc;
    border-radius: 8px;
}

.result p {
    margin: 10px 0;
    font-size: 16px;
}