html {
  box-sizing: border-box;
}

*,
*::before,
*::after {
  box-sizing: inherit;
  margin: 0;
  padding: 0;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    Oxygen-Sans, Ubuntu, Cantarell, "Helvetica Neue", sans-serif;
  line-height: 1.4;
  background-color: aliceblue;
}

.container {
  width: 100%;
  max-width: 500px;
  margin: 0 auto;
  padding-left: 10px;
  padding-right: 10px;
  color: #333;
  height: 90vh;
  margin-top: 5vh;
  margin-bottom: 5vh;
  overflow-y: auto;
}

.app-title {
  text-align: center;
  margin-bottom: 20px;
  font-size: 80px;
  opacity: 0.5;
  text-decoration: underline;
}

svg {
  width: 64px;
  height: 64px;
}

.todo-list {
  list-style: none;
  margin-bottom: 20px;
}

.todo-item {
  margin-bottom: 10px;
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.todo-item span {
  flex-grow: 1;
  margin-left: 10px;
  margin-right: 10px;
  font-size: 22px;
}

.done span {
  text-decoration: line-through;
}

input[type="checkbox"] {
  display: none;
}

.tick {
  width: 30px;
  height: 30px;
  border: 3px solid #333;
  border-radius: 50%;
  display: inline-flex;
  justify-content: center;
  align-items: center;
  cursor: pointer;
}

.tick::before {
  content: "✓";
  font-size: 20px;
  display: none;
}

.done .tick::before {
  display: inline;
}

.delete-todo {
  border: none;
  background-color: transparent;
  outline: none;
  cursor: pointer;
}

.delete-todo svg {
  width: 30px;
  height: 30px;
  pointer-events: none;
}

form {
  width: 100%;
  display: flex;
  justify-content: space-between;
}

input[type="text"] {
  width: 100%;
  padding: 10px;
  border-radius: 4px;
  border: 3px solid #333;
}

.empty-state {
  flex-direction: column;
  align-items: center;
  justify-content: center;
  display: none;
}

.checklist-icon {
  margin-bottom: 20px;
}

.empty-state__title,
.empty-state__description {
  margin-bottom: 20px;
}

.todo-list:empty {
  display: none;
}

.todo-list:empty + .empty-state {
  display: flex;
}

#randomIdea {
  box-shadow: inset 0px 0px 14px -3px #e2e4eb;
  background: linear-gradient(to bottom, #ced2d9 5%, #476e9e 100%);
  background-color: #ced2d9;
  border-radius: 6px;
  border: 1px solid #4e6096;
  display: inline-block;
  cursor: pointer;
  color: #ffffff;
  font-family: Trebuchet MS;
  font-size: 15px;
  font-weight: bold;
  padding: 6px 24px;
  text-decoration: none;
  text-shadow: 0px 1px 0px #283966;
}
#randomIdea:hover {
  background: linear-gradient(to bottom, #476e9e 5%, #ced2d9 100%);
  background-color: #476e9e;
}
#randomIdea:active {
  position: relative;
  top: 1px;
}

#ideaOutput {
  text-align: center;
  margin-bottom: 20px;
  font-size: 20px;
  opacity: 0.5;
  text-decoration: underline;
}