stylesheet.css

@import url(switch.css);
@import url(button.css);

:root {
  --bg-color: white;
  --txt-color: black;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg-color: #202124;
    --txt-color: #ebebeb;
  }
}

html, body {
  margin: 0;
  font-family: Arial;
  font-size: 15px;
  height: 100%;
  width: 100%;
  background-color: var(--bg-color);
  color: var(--txt-color);
}

body, .center, .container {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.inline-center {
  display: flex;
  align-items: center;
  justify-content: center;
}

h2, h3 {
  font-weight: lighter;
}

body > *, .container > * {
  margin-bottom: 10px;
}

input[type=file] {
  padding: 5px;
  border: 2px solid white;
  border-radius: 10px;
}

.inline > * {
  display: inline;
}

input[type="number"] {
  background-color: #131416;
  color: rgba(255, 255, 255, 0.856);
  font-size: 1rem;
  border: 1px solid #ffffff8d;
  border-radius: 5px;
}