* {
  box-sizing: border-box;
  font-family: 'Segoe UI', sans-serif;
}

body {
  margin: 0;
  background: #f2f2f2;
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
}

.app {
  width: 360px;
  background: white;
  padding: 25px;
  border-radius: 14px;
  box-shadow: 0 10px 30px rgba(0,0,0,0.08);
}

h1 {
  text-align: center;
  margin-top: 0;
}

textarea {
  width: 100%;
  height: 80px;
  resize: none;
  padding: 10px;
  border-radius: 8px;
  border: 1px solid #ddd;
  margin-bottom: 10px;
}

textarea:focus {
  outline: none;
  border-color: #aaa;
}

#add {
  width: 100%;
  padding: 10px;
  border: none;
  border-radius: 8px;
  background: #222;
  color: white;
  cursor: pointer;
  margin-bottom: 15px;
}

#add:hover {
  background: #444;
}

ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

li {
  background: #f7f7f7;
  padding: 10px;
  border-radius: 8px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 8px;
}

li span {
  flex: 1;
  font-size: 14px;
}

li button {
  border: none;
  background: none;
  cursor: pointer;
  font-size: 16px;
  margin-left: 6px;
}