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Exercise 2: HTML + CSS Login Form
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<!-- index.html -->
<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <title>Login Form</title>
  <link rel="stylesheet" href="style.css">
</head>
<body>
  <div class="form-container">
    <h2>Login</h2>
    <form>
      <input type="email" placeholder="Email" required>
      <input type="password" placeholder="Password" required>
      <button type="submit">Sign In</button>
    </form>
    <p>Don't have an account? <a href="#">Sign Up</a></p>
  </div>
</body>
</html>

/* style.css */
body {
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
  background: #667eea;
  font-family: Arial, sans-serif;
}
.form-container {
  background: white;
  padding: 40px;
  border-radius: 12px;
  width: 320px;
  box-shadow: 0 10px 30px rgba(0,0,0,0.2);
}
.form-container h2 {
  text-align: center;
  margin-bottom: 24px;
  color: #333;
}
input {
  width: 100%;
  padding: 12px;
  margin: 8px 0;
  border: 1px solid #ddd;
  border-radius: 8px;
  box-sizing: border-box;
  font-size: 14px;
}
button {
  width: 100%;
  padding: 12px;
  background: #667eea;
  color: white;
  border: none;
  border-radius: 8px;
  margin-top: 12px;
  cursor: pointer;
  font-size: 16px;
}
button:hover { background: #5a67d8; }
p { text-align: center; margin-top: 16px; font-size: 13px; color: #666; }
a { color: #667eea; text-decoration: none; }
