* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: "Arial Rounded MT Bold";
}

.container {
  width: 100%;
  min-height: 100vh;
  background: linear-gradient(-45deg, #ff9a9e, #fad0c4, #fad0c4, #fbc2eb);
  animation: gradientMove 5s linear infinite;
  padding: 1rem;
}

@keyframes gradientMove {
  0% {
    background-position: 0% 50%;
  }
  50% {
    background-position: 100% 50%;
  }
  100% {
    background-position: 0% 50%;
  }
}

.todo-app {
  width: 100%;
  max-width: 45rem;
  background: rgba(200, 100, 100, 0.1);
  margin: 7rem auto 20px;
  padding: 2rem;
  border-radius: 1rem;
}

.todo-app h2 {
  color: #000;
  display: flex;
  align-items: center;
  margin-bottom: 1rem;
  justify-content: center;
}

.todo-app h2 img {
  width: 2.3rem;
  margin-left: 0.5rem;
}

.row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: rgb(255, 255, 255, 0.7);
  border-radius: 1.5rem;
  margin-bottom: 1.5rem;
}

input {
  flex: 1;
  border: none;
  outline: none;
  background: transparent;
  padding: 0.5rem;
  padding-left: 1rem;
  font-size: 1rem;
}

button {
  border: none;
  outline: none;
  padding: 1rem 2rem;
  background: #ff5935;
  color: #fff;
  border-radius: 1.5rem;
  font-size: 1rem;
  cursor: pointer;
}

ul li {
  list-style: none;
  font-size: 1rem;
  cursor: pointer;
  user-select: none;
  padding: 1rem;
  position: relative;
  padding-left: 3rem;
}

ul li::before {
  content: "";
  position: absolute;
  height: 28px;
  border-radius: 50%;
  width: 28px;
  background-image: url(images/unchecked.png);
  background-size: cover;
  background-position: center;
  top: 12px;
  left: 8px;
}

ul li.checked {
  color: #555;
  text-decoration: line-through;
}

ul li.checked::before {
  background-image: url(images/checked.png);
}

ul li span {
  position: absolute;
  right: 0;
  top: 0.5rem;
  height: 2.2rem;
  width: 2.2rem;
  font-size: 1.7rem;
  color: #323232;
  line-height: 2.2rem;
  text-align: center;
  border-radius: 50%;
  font-weight: lighter;
}

ul li span:hover {
  background: #edeef0;
}