body {
    font-family: Arial, Helvetica, sans-serif;
    background: #121212;
    color: #e0e0e0;
    margin: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    padding: 10px;
    box-sizing: border-box;
    flex-direction: column;
}

h2 {
    text-align: center;
    margin-bottom: 20px;
    color: #ffffff;
}

label {
    display: block;
    margin-bottom: 6px;
    color: #cccccc;
}

input {
    width: 100%;
    padding: 10px;
    border: 1px solid #555;
    border-radius: 4px;
    background: #2c2c2c;
    color: #ffffff;
    box-sizing: border-box;
}

.container {
    width: 100%;
    max-width: 350px;
    background: #1e1e1e;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.7);
}

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

.action-button {
    width: 100%;
    padding: 10px;
    background: #bb86fc;
    color: #121212;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 16px;
    margin-top: 10px;
}

#error-message {
    color: #ff5555;
    text-align: center;
    display: none;
    margin-bottom: 10px;
}

#toggle-link {
    text-align: center;
    margin-top: 10px;
    color: #bb86fc;
    cursor: pointer;
    text-decoration: underline;
}

@media screen and (max-width: 400px) {
    .container {
        padding: 15px;
    }

    input, .action-button {
        font-size: 14px;
        padding: 8px;
    }
}