* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
body {
  background: #27f5b7;
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
  font-family: Arial, sans-serif;
}

.todo-app {
  background: #f1f5f9;
  padding: 20px;
  border-radius: 20px;
  width: 350px;
}

.todo-input {
  display: flex;
  align-items: center;
  margin-bottom: 15px;
}

.todo-input input {
  flex: 1;
  padding: 10px;
  border: none;
  border-radius: 10px;
  box-shadow: inset 4px 4px 8px #cbd5e1, inset -4px -4px 8px #ffffff;
  outline: none;
}

.tabs {
  display: flex;
  align-items: center;
  gap: 15px;
  margin-bottom: 10px;
}

.tabs span {
  cursor: pointer;
  font-weight: bold;
  color: #334155;
}

.tabs span.active {
  color: #079c6f;
}

.clear {
  background: #079c6f;
  border: none;
  padding: 5px 10px;
  color: #fff;
  border-radius: 5px;
  cursor: pointer;
  float: right;
}

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

li {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: #f1f5f9;
  margin: 5px 0;
  padding: 10px;
  border-radius: 10px;
  box-shadow: 4px 4px 8px #cbd5e1, -4px -4px 8px #ffffff;
  position: relative;
}

li label {
  display: flex;
  align-items: center;
  gap: 10px;
}

li.completed label span {
  text-decoration: line-through;
  color: #94a3b8;
}

.menu {
  position: relative;
  cursor: pointer;
}

.menu-content {
  display: none;
  position: absolute;
  top: 100%;
  right: 0;
  background: #fff;
  box-shadow: 0 8px 16px rgba(0, 0, 0, 0.15);
  border-radius: 8px;
  z-index: 999;
}

.menu-content div {
  padding: 8px 15px;
  cursor: pointer;
  white-space: nowrap;
}

.menu-content div:hover {
  background: #e2e8f0;
}

@media (max-width: 400px) {
  .todo-app {
    width: 90%;
  }
}