body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: #f2f4f8;
    margin: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
}

.login-container {
    background: white;
    padding: 2rem;
    border-radius: 8px;
    box-shadow: 0 4px 10px rgba(0,0,0,0.1);
    width: 320px;
    text-align: center;
}

h2 {
    margin-bottom: 1.5rem;
    color: #333;
}

label {
    display: block;
    margin-bottom: 0.3rem;
    font-weight: 600;
    color: #555;
    text-align: left;
}

input[type="text"],
input[type="password"],
select {
    width: 100%;
    padding: 0.6rem;
    margin-bottom: 1rem;
    border: 1px solid #ccd0d5;
    border-radius: 4px;
    transition: border-color 0.2s ease-in-out;
    font-size: 1rem;
}

input[type="text"]:focus,
input[type="password"]:focus,
select:focus {
    border-color: #3a87ad;
    outline: none;
}

button {
    width: 100%;
    padding: 0.75rem;
    font-size: 1rem;
    background-color: #3a87ad;
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-weight: 700;
    transition: background-color 0.3s ease;
    margin-bottom: 0.5rem;
}

button:hover {
    background-color: #32729a;
}

#message {
    margin-top: 1rem;
    font-weight: 600;
    color: #d9534f;
}