body {
    margin: 0;
    padding: 0;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #0073e6, #00408b);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

.auth-container {
    width: 100%;
    max-width: 400px;
    padding: 20px;
}

.auth-form {
    background: white;
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.auth-header {
    text-align: center;
    margin-bottom: 2rem;
}

.auth-header h1 {
    font-size: 1.5rem;
    color: #333;
    margin-bottom: 0.5rem;
}

.auth-header h2 {
    font-size: 1.2rem;
    color: #666;
    font-weight: normal;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: #555;
    font-size: 0.9rem;
}

.form-group input {
    width: 100%;
    padding: 0.8rem;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 1rem;
    transition: border-color 0.3s;
}

.form-group input:focus {
    border-color: #0073e6;
    outline: none;
    box-shadow: 0 0 0 2px rgba(0, 115, 230, 0.2);
}

.btn {
    width: 100%;
    padding: 0.8rem;
    font-size: 1rem;
    font-weight: 600;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    transition: background-color 0.3s;
}

.btn-primary {
    background-color: #0073e6;
    color: white;
}

.btn-primary:hover {
    background-color: #005bb5;
}

.auth-links {
    margin-top: 1.5rem;
    text-align: center;
    font-size: 0.9rem;
}

.auth-links a {
    color: #0073e6;
    text-decoration: none;
}

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

.messages {
    margin-bottom: 1.5rem;
}

.message {
    padding: 0.8rem;
    border-radius: 4px;
    margin-bottom: 0.5rem;
}

.message.error {
    background-color: #f8d7da;
    border: 1px solid #f5c6cb;
    color: #721c24;
}

.message.success {
    background-color: #d4edda;
    border: 1px solid #c3e6cb;
    color: #155724;
}