body {
  margin: 0;
  font-family: 'Segoe UI', sans-serif;
  background: linear-gradient(135deg, #6a11cb, #2575fc);
  color: #fff;
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
}

.container {
  background: rgba(0, 0, 0, 0.6);
  border-radius: 20px;
  padding: 30px;
  width: 400px;
  text-align: center;
  box-shadow: 0 8px 25px rgba(0,0,0,0.5);
}

.logo {
  width: 120px;
  margin-bottom: 20px;
}

h1 {
  font-size: 24px;
  margin-bottom: 20px;
  font-weight: bold;
  letter-spacing: 1px;
}

input, textarea, button {
  width: 100%;
  padding: 12px;
  margin: 10px 0;
  border-radius: 10px;
  border: none;
  font-size: 16px;
}

input, textarea {
  outline: none;
}

button {
  background: #ff6f61;
  color: #fff;
  font-weight: bold;
  cursor: pointer;
  transition: background 0.3s;
}

button:hover {
  background: #ff3b2e;
}

#notebook {
  display: none;
}

textarea {
  height: 200px;
  resize: none;
}