* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: Arial, sans-serif;
    background-color: #e8f0fe;
    color: #222;
}

.container {
    width: 90%;
    max-width: 550px;
    margin: 50px auto;
    padding: 30px;
    background-color: white;
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

h1 {
    text-align: center;
    color: #2c5aa0;
    margin-bottom: 5px;
}

.subtitle {
    text-align: center;
    color: #666;
    margin-bottom: 30px;
}

label {
    display: block;
    margin-top: 15px;
    margin-bottom: 6px;
    font-weight: bold;
}

input {
    width: 100%;
    padding: 11px;
    border: 1px solid #bbb;
    border-radius: 6px;
    font-size: 16px;
}

input:focus {
    outline: none;
    border-color: #2c5aa0;
}

button {
    display: block;
    width: 100%;
    margin-top: 25px;
    padding: 12px;
    border: none;
    border-radius: 6px;
    background-color: #2c5aa0;
    color: white;
    font-size: 17px;
    font-weight: bold;
    cursor: pointer;
}

button:hover {
    background-color: #1e4278;
}

#message {
    text-align: center;
    margin-top: 20px;
    font-weight: bold;
    color: green;
}