flask-2fa-auth/app/templates/auth/login.html

{% extends "base.html" %}

{% block content %}
<div class="row justify-content-center">
    <div class="col-md-6">
        <div class="auth-form">
            <h2 class="text-center mb-4">
                <i class="bi bi-box-arrow-in-right"></i> Sign In
            </h2>
            
            <div class="security-notice">
                <strong>Security Notice:</strong> This application uses two-factor authentication. 
                After entering your credentials, you'll need to provide a code from your authenticator app.
            </div>
            
            <form method="POST" novalidate>
                {{ form.hidden_tag() }}
                
                <!-- Username field -->
                <div class="mb-3">
                    {{ form.username.label(class="form-label") }}
                    {{ form.username(class="form-control" + (" is-invalid" if form.username.errors else ""), 
                                   placeholder="Enter your username") }}
                    {% if form.username.errors %}
                        <div class="invalid-feedback">
                            {% for error in form.username.errors %}
                                {{ error }}
                            {% endfor %}
                        </div>
                    {% endif %}
                </div>
                
                <!-- Password field -->
                <div class="mb-3">
                    {{ form.password.label(class="form-label") }}
                    {{ form.password(class="form-control" + (" is-invalid" if form.password.errors else ""), 
                                   placeholder="Enter your password") }}
                    {% if form.password.errors %}
                        <div class="invalid-feedback">
                            {% for error in form.password.errors %}
                                {{ error }}
                            {% endfor %}
                        </div>
                    {% endif %}
                </div>
                
                <!-- Remember me checkbox -->
                <div class="mb-3 form-check">
                    {{ form.remember_me(class="form-check-input") }}
                    {{ form.remember_me.label(class="form-check-label") }}
                    <div class="form-text">Keep me logged in on this device</div>
                </div>
                
                <!-- Submit button -->
                <div class="d-grid">
                    {{ form.submit(class="btn btn-primary btn-lg") }}
                </div>
            </form>
            
            <hr class="my-4">
            
            <div class="text-center">
                <p>Don't have an account? 
                    <a href="{{ url_for('auth.register') }}" class="text-decoration-none">Register here</a>
                </p>
            </div>
        </div>
    </div>
</div>

<div class="row mt-4">
    <div class="col-md-8 offset-md-2">
        <div class="card">
            <div class="card-header">
                <h5><i class="bi bi-shield-lock"></i> Login Process</h5>
            </div>
            <div class="card-body">
                <ol>
                    <li>Enter your username and password</li>
                    <li>If credentials are valid, you'll be redirected to 2FA verification</li>
                    <li>Open your authenticator app (Google Authenticator, Authy, etc.)</li>
                    <li>Enter the 6-digit code from your app</li>
                    <li>Access granted to your secure dashboard</li>
                </ol>
                <div class="alert alert-info mt-3">
                    <i class="bi bi-info-circle"></i>
                    <strong>Security Tip:</strong> Never share your authentication codes with anyone. 
                    They expire every 30 seconds for your protection.
                </div>
            </div>
        </div>
    </div>
</div>
{% endblock %}