:root {
    --primary-color: #4CAF50;
    --secondary-color: #45a049;
    --background-color: #f4f4f4;
    --text-color: #333;
    --error-color: #f44336;
    --success-color: #4CAF50;
}

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

body {
    font-family: 'Roboto', Arial, sans-serif;
    background-color: var(--background-color);
    color: var(--text-color);
    line-height: 1.6;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    padding: 20px;
}

.container {
    background-color: #ffffff;
    border-radius: 8px;
    box-shadow: 0 0 20px rgba(0, 0, 0, 0.1);
    overflow: hidden;
    width: 400px;
    max-width: 100%;
    padding: 40px;
    text-align: center;
}

.logo {
    width: 150px;
    margin-bottom: 20px;
}

h2 {
    color: var(--primary-color);
    margin-bottom: 20px;
    font-size: 24px;
}

form {
    display: flex;
    flex-direction: column;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 5px;
    text-align: left;
    font-weight: bold;
}

.form-group input {
    width: 100%;
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 16px;
    transition: border-color 0.3s ease;
}

.form-group input:focus {
    border-color: var(--primary-color);
    outline: none;
}

.btn {
    background-color: var(--primary-color);
    color: white;
    border: none;
    padding: 12px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 16px;
    transition: background-color 0.3s ease;
}

.btn:hover {
    background-color: var(--secondary-color);
}

.message {
    margin-top: 20px;
    padding: 10px;
    border-radius: 4px;
}

.error {
    background-color: #ffebee;
    border: 1px solid var(--error-color);
    color: var(--error-color);
}

.success {
    background-color: #e8f5e9;
    border: 1px solid var(--success-color);
    color: var(--success-color);
}

.links {
    margin-top: 20px;
}

.links a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: bold;
}

.links a:hover {
    text-decoration: underline;
}