body {
  font-family: sans-serif;
  background: #f5f5f5;
  margin: 0;
  padding: 2rem 1rem;
}

main {
  max-width: 480px;
  margin: 0 auto;
  background: #fff;
  border-radius: 8px;
  padding: 1.5rem;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.1);
}

h1 {
  font-size: 1.4rem;
  margin-top: 0;
}

h2 {
  font-size: 1rem;
  color: #666;
  margin: 1.5rem 0 0.5rem;
}

#add-form {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

#add-form input {
  flex: 1;
  padding: 0.5rem;
  font-size: 1rem;
}

#add-form input[type="number"] {
  flex: 0 0 4rem;
}

#item-list li .quantity {
  color: #666;
}

.timestamp {
  color: #999;
  font-size: 0.8rem;
  white-space: nowrap;
}

#deleted-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

#deleted-list li {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: #999;
  font-size: 0.9rem;
  padding: 0.5rem 0;
  border-bottom: 1px solid #eee;
}

#deleted-list li .readd-btn {
  margin-left: auto;
  cursor: pointer;
  background: none;
  border: none;
  color: #06c;
  font-size: 1rem;
}

#add-form button {
  padding: 0.5rem 1rem;
  font-size: 1rem;
  cursor: pointer;
}

#item-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

#item-list li {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 0;
  border-bottom: 1px solid #eee;
}

#item-list li.checked span {
  text-decoration: line-through;
  color: #999;
}

#item-list li .delete-btn {
  margin-left: auto;
  cursor: pointer;
  background: none;
  border: none;
  color: #c00;
  font-size: 1rem;
}