body {
    font-family: sans-serif;
    background-color: #f4f4f4;
    margin: 0;
    padding: 20px;
    color: #333;
}

.form-container {
    background: white;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    max-width: 400px;
    margin: 40px auto;
}

.form-group {
    margin-bottom: 15px;
}

.form-group label {
    display: block;
    margin-bottom: 5px;
}

.form-group input {
    width: 100%;
    padding: 8px;
    box-sizing: border-box;
    border: 1px solid #ddd;
    border-radius: 4px;
}

button {
    width: 100%;
    padding: 10px;
    border: none;
    background-color: #007bff;
    color: white;
    border-radius: 4px;
    cursor: pointer;
}

.flash {
    padding: 10px;
    margin: 10px 0;
    border-radius: 4px;
}
.flash.success { background-color: #d4edda; color: #155724; }
.flash.error { background-color: #f8d7da; color: #721c24; }
.flash.info { background-color: #d1ecf1; color: #0c5460; }