*,
::before,
::after {
  box-sizing: border-box;
}
:root {
  --ff: ui-sans-serif, system-ui, -apple-system, "BlinkMacSystemFont",
    "Segoe UI", "Roboto", "Helvetica Neue", "Arial", "Noto Sans", sans-serif,
    "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji";
  --bg: #121212;
  --fg: #fafafa;
}
html,
body {
  background-color: var(--bg);
  line-height: 1.5;
  font-family: var(--ff);
  margin: 0;
  color: var(--fg);
}
header {
  text-align: center;
}
h1 {
  font-size: clamp(1rem, 12vw, 3rem);
  font-weight: 200;
  margin: 2vh 0 1vh;
}
a {
  text-decoration: none;
  color: #3df;
  display: block;
}
p {
  margin: 0;
}
section {
  padding: 2rem 1rem;
  margin: 0 auto;
  max-width: 34rem;
}
ul {
  display: block;
  padding: 0 0 5rem;
  margin: 0;
  list-style-type: none;
  margin-inline: 0;
  margin-block: 0;
}
li {
  display: block;
  padding: 0.5rem;
  margin: 0;
}
li a {
  padding: 1rem;
  border-radius: 0.25rem;
  overflow: hidden;
  background-color: rgba(255, 255, 255, 0.04);
  color: #fff;
  transition: background-color 0.5s;
  font-size: 1.125rem;
  font-weight: 500;
  letter-spacing: 0.025rem;
  text-overflow: ellipsis;
  text-wrap-mode: nowrap;
  text-wrap: nowrap;
  white-space: nowrap;
}
li a:hover {
  background-color: rgba(255, 255, 255, 0.1);
}
footer {
  background-color: #181818;
  background: linear-gradient(#181818, #101010);
  box-shadow: 0 0 0.5rem 0.25rem rgba(0, 0, 0, 0.5);
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 1rem;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  width: 100%;
  height: clamp(5rem, 12vh, 7rem);
}
#add {
  display: flex;
  justify-content: center;
  align-items: center;
  cursor: pointer;
  font-weight: 500;
  letter-spacing: 0.025rem;
  border: none;
  outline: none;
  text-decoration: none;
  user-select: none;
  width: 10rem;
  height: 2.5rem;
  margin: auto;
  color: #000;
  background-color: #0f8;
  box-shadow: 0 0 0.5rem 0.25rem rgba(0, 0, 0, 0.2);
  border-radius: 1.25rem;
  padding: 0.5rem 1rem;
  transition: all 0.1s;
}
#add:hover,
#add:focus {
  background-color: #1ed760;
  transform: scale(1.04);
  box-shadow: 0 0 0.5rem 0.375rem rgba(0, 0, 0, 0.3);
}