implemented basis of login, missing database connection.

app/templates/login.html

@@ -0,0 +1,41 @@
+<!DOCTYPE html>
+<html lang="en">
+
+<head>
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <title>Login</title>
+    <style>
+        h1 {
+            color: green;
+        }
+
+        .error {
+            color: red;
+        }
+    </style>
+</head>
+
+<body>
+    <nav>
+        <ul>
+            <li><a href="/login">Login</a></li>
+            <li><a href="/register">Create account</a></li>
+        </ul>
+    </nav>
+    <h1>Login to your account</h1>
+
+    {% if error %}
+    <p class="error">{{ error }}</p>
+    {% endif %}
+
+    <form action="/login" method="post">
+        <label for="username">Username:</label>
+        <input type="text" name="username" required />
+        <label for="password">Password:</label>
+        <input type="password" name="password" required />
+        <button type="submit">Login</button>
+    </form>
+</body>
+
+</html>

app/templates/sign_up.html

@@ -0,0 +1,41 @@
+<!DOCTYPE html>
+<html lang="en">
+
+<head>
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <title>Sign Up</title>
+    <style>
+        h1 {
+            color: green;
+        }
+
+        .error {
+            color: red;
+        }
+    </style>
+</head>
+
+<body>
+    <nav>
+        <ul>
+            <li><a href="/login">Login</a></li>
+            <li><a href="/register">Create account</a></li>
+        </ul>
+    </nav>
+    <h1>Create an account</h1>
+
+    {% if error %}
+    <p class="error">{{ error }}</p>
+    {% endif %}
+
+    <form action="/register" method="post">
+        <label for="username">Username:</label>
+        <input type="text" name="username" required />
+        <label for="password">Password:</label>
+        <input type="password" name="password" required />
+        <button type="submit">Sign Up</button>
+    </form>
+</body>
+
+</html>