* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: Arial, sans-serif;
    line-height: 1.6;
    background-color: #f4f4f4;
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
}

.login-container {
    background: white;
    padding: 2rem;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    width: 100%;
    max-width: 400px;
    margin: 1rem;
}

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

.login-form {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

label {
    color: #555;
    font-weight: bold;
}

input {
    padding: 0.8rem;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 1rem;
}

input:focus {
    outline: none;
    border-color: #4a90e2;
    box-shadow: 0 0 0 2px rgba(74, 144, 226, 0.2);
}

button {
    background-color: #4a90e2;
    color: white;
    padding: 0.8rem;
    border: none;
    border-radius: 4px;
    font-size: 1rem;
    cursor: pointer;
    transition: background-color 0.2s;
}

button:hover {
    background-color: #357abd;
}

.error-message {
    color: #dc3545;
    text-align: center;
    margin-top: 1rem;
    min-height: 1.5rem;
}