body {
    font-family: Arial, sans-serif;
    background: #f7f8fa;
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100vh;
    margin: 0;
}

.login-container, .dashboard {
    background: white;
    padding: 40px;
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
    width: 300px;
    text-align: center;
}

input {
    width: 100%;
    padding: 10px;
    margin: 10px 0;
    border: 1px solid #ddd;
    border-radius: 6px;
}

button {
    padding: 10px 20px;
    background: #4CAF50;
    color: white;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    width: 100%;
}

button:hover {
    background: #45a049;
}

.error {
    color: red;
    font-size: 14px;
}