* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  user-select: none;
}
body {
  font-family: "Open Sans", sans-serif;
  background-color: #ccc;
}
.app {
  height: 100vh;
  text-align: center;
  margin: 0 10px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.app .title {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 20px;
  font-size: 40px;
  color: #655987;
}
.app .title img {
  max-width: 50px;
}
.app .add-tasks {
  display: flex;
  padding: 10px;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}
.app .add-tasks input {
  flex: 1;
  border: none;
  outline: none;
  padding: 15px 20px;
  border-radius: 10px;
  font-size: 16px;
  color: #444;
}
.app .add-tasks button {
  border: none;
  outline: none;
  cursor: pointer;
  padding: 15px 20px;
  background-color: #ffba55;
  color: #fff;
  font-size: 16px;
  font-weight: bold;
  border-radius: 10px;
}
.app .tasks {
  display: flex;
  flex-direction: column;
  gap: 10px;
  list-style: none;
  padding-bottom: 20px;
}
.app .tasks .task {
  position: relative;
  padding: 10px 40px;
  text-align: start;
  overflow: hidden;
  cursor: pointer;
  background-color: #fff;
  border-radius: 25px;
}
.app .tasks .task::before {
  content: "";
  background-image: url(../files/unchecked.png);
  background-size: cover;
  width: 25px;
  height: 25px;
  position: absolute;
  left: 8px;
  top: 50%;
  transform: translateY(-50%);
}
.app .tasks .task .delete {
  border: none;
  outline: none;
  position: absolute;
  right: 6px;
  top: 50%;
  transform: translateY(-50%);
  width: 20px;
  height: 20px;
  padding: 15px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  font-size: 18px;
  font-weight: bold;
  transition: 0.5s;
  cursor: pointer;
  background-color: #ff3b30;
  color: #fff;
}
.app .tasks .task .delete:hover {
  background-color: #777;
}
.app .tasks .task.checked {
  text-decoration: line-through;
  color: #777;
}
.app .tasks .task.checked::before {
  background-image: url(../files/checked.png);
}
@media (min-width: 768px) {
  .app .tasks {
    padding: 0 20px;
  }
}