To-Do App Appscript GS

Style.html

<style>
:root {
  --color-5c: #190934;
  --color-4c: #300D6E;
  --color-3c: #5A18C9;
  --color-2c: #905BEC;
  --color-1c: #E9DFFB;
}

* {
  box-sizing: border-box;
}

html, body {
  margin: 0;
  padding: 0;
  font-family: 'Inter', open-sans;
  font-size: 16px;
  color: #000;
}

h1 {
  font-size: 1rem;
}

input[type="text"] {
  width: 100%;
  padding: 12px;
  border-top-left-radius: 6px;
  border-bottom-left-radius: 6px;
  border: 1px solid var(--color-3c);
  border-right: none;
}

button {
  width: 50px;
  font-size: 1rem;
  cursor: pointer;
  border-top-right-radius: 6px;
  border-bottom-right-radius: 6px;
  border: 1px solid var(--color-3c);
}

button.primary {
  background-color: var(--color-3c);
  color: white;
}

button.primary > i {
  font-weight: 600;
}

section.header {
  display: flex;
  flex-direction: row;
  flex-wrap: no-wrap;
  margin: 30px 0;
}

#listado {
  height: 440px;
  padding: 16px;
  background-color: white;
  border-radius: 6px;
  border: 1px solid var(--color-1c);
  box-shadow: 0 2px 2px 0 rgba(0, 0, 0, 0.02), 0 4px 4px 0 rgba(0, 0, 0, 0.04);
  overflow-y: auto;
}

.content {
  width: 100%;
  height: 48px;
  display: flex;
  flex-direction: row;
  border-bottom: 1px solid var(--color-1c);
}

.content .item {
  align-self: center;
}

.content .item.text a {
  color: var(--color-5c);
  text-decoration: none;
}

.content .item.text a.check {
  text-decoration: line-through;
}

.content .item.text {
  flex-basis: 100%;
}

.content .item.control > a {
  color: var(--color-3c);
  padding: 10px 10px; 
}

.content .item.control > a > i {
  font-size: 1.1rem;
  font-weight: 600;
}

.content .item.control > a:hover {
  color: var(--color-3c);
  background-color: var(--color-1c);
  border-radius: 50%;
}

.alert {
  padding: 18px;
  font-size: 1rem;
  font-weight: 400;
  border-radius: 4px;
}

.alert i {
  margin-right: 12px;
  font-size: 1.1rem;
}

.alert.success {
  color: var(--color-3c);
  background: var(--color-1c);
}
</style>