:root {
  --input-height: 2.2rem;
  --input-radius: 0.3rem;
}

body {
  background-color: #f9f9fb;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen,
    Ubuntu, Cantarell, "Open Sans", "Helvetica Neue", sans-serif;
  color: rgb(32, 32, 32);
}

h1 {
  text-align: center;
}

h1 span {
  position: relative;
  top: 0.7rem;
  left: 0.7rem;
}

main {
  max-width: 50ch;
  margin: auto;
}

form {
  display: flex;
  flex-direction: row;
  margin-bottom: 1.2rem;
}

label {
  flex: 1 1 auto;
}

label span:nth-child(1) {
  display: block;
  font-weight: bold;
}

label span:nth-child(2) {
  display: block;
  font-size: small;
  color: grey;
  font-style: italic;
}

input {
  box-sizing: border-box;
  width: 100%;
  height: var(--input-height);
  margin-top: 0.3rem;
  font-size: 1rem;
  border-radius: var(--input-radius) 0 0 var(--input-radius);
  border: 1px solid rgb(180, 176, 176);
  outline: none;
  padding: 0 0.7rem;
}

.form--hover:hover {
  box-shadow: 0 0 0.5rem rgba(30, 143, 255, 0.5);
}

button {
  align-self: end;
  height: var(--input-height);
  width: 4rem;
  border-radius: 0 var(--input-radius) var(--input-radius) 0;
  border: none;
  background-color: rgb(53, 153, 253);
  color: white;
  font-weight: bold;
}

button:hover {
  background-color: rgb(51, 143, 236);
}

to-do {
  background-color: #f8f8b9;
  margin: 0.5rem 0;
}

to-do.grabbed {
  position: relative;
  pointer-events: none; /* for document.elementFromPoint() */
  box-shadow: 0 0.4rem 1rem 0.2rem rgba(0, 0, 0, 0.3);
  transform: scale(1.02);
}

to-do.before-appearance {
  opacity: 0;
  transform: translateY(-3rem);
}

.appearable {
  transition: 0.2s ease-in;
}

to-do.flying {
  position: relative;
  z-index: -1;
}

to-do.landed {
  position: relative;
  left: 0px;
  top: 0px;
}