body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #f4f7f6;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
}

.container {
    background: #fff;
    padding: 2rem;
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
    width: 100%;
    max-width: 400px;
}

h1 {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    color: #333;
    text-align: center;
}

form {
    display: flex;
    flex-direction: column;
}

input {
    padding: 0.75rem;
    margin-bottom: 1rem;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 1rem;
}

button {
    padding: 0.75rem;
    background-color: #007bff;
    color: white;
    border: none;
    border-radius: 4px;
    font-size: 1rem;
    cursor: pointer;
    transition: background-color 0.2s;
}

button:hover {
    background-color: #0056b3;
}

.error {
    color: #d9534f;
    background-color: #f2dede;
    padding: 0.5rem;
    border-radius: 4px;
    margin-bottom: 1rem;
    text-align: center;
    font-size: 0.9rem;
}

.success {
    color: #3c763d;
    background-color: #dff0d8;
    padding: 0.5rem;
    border-radius: 4px;
    margin-bottom: 1rem;
    text-align: center;
    font-size: 0.9rem;
}

label {
    margin-bottom: 0.5rem;
    font-weight: bold;
    color: #555;
}