body, html {
    margin: 0;
    padding: 0;
    font-family: 'Roboto', sans-serif;
    background-color: #f0f2f5;
}

.login-body {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    background: linear-gradient(135deg, #667eea, #764ba2);
}

.login-container {
    background: #fff;
    padding: 2.5rem;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    width: 350px;
    text-align: center;
}

.input-group {
    margin: 1.5rem 0;
}

.input-group label {
    display: block;
    font-weight: bold;
    margin-bottom: 0.5rem;
    color: #333;
}

.input-group input {
    width: 100%;
    padding: 0.75rem;
    font-size: 1rem;
    border: 1px solid #ccc;
    border-radius: 8px;
}

.btn-login {
    background: linear-gradient(135deg, #667eea, #764ba2);
    color: white;
    padding: 0.75rem;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    width: 100%;
    font-size: 1rem;
    font-weight: bold;
    transition: background 0.3s;
}

.btn-login:hover {
    background: linear-gradient(135deg, #5568d9, #623b82);
}

.error-message {
    color: red;
    font-weight: bold;
    margin-top: 1rem;
}

/* Additional styles */