:root {
  --background-color: hsl(220, 20%, 10%);
  --input-background-color: hsl(220, 20%, 15%);
  --button-drop-shadow-color: hsl(220, 30%, 95%, 40%);

  --font-family: system-ui;
  --font-color: hsl(220, 30%, 95%);
  --font-size: 1.05rem;
  --line-height: 1.6;
}

* {
  box-sizing: border-box;
}

body {
  margin: 1rem auto;
  max-width: 70ch;
  background-color: var(--background-color);
  font-family: var(--font-family);
  font-size: var(--font-size);
  line-height: var(--line-height);
  color: var(--font-color);
}

input,
button {
  font: inherit;
  border: 0;
  color: inherit;
  background: var(--input-background-color);
  padding: 0.25rem 0.5rem;
  border-radius: 1rem;
}

input {
  width: 100%;
}

button:hover {
  cursor: pointer;
}

#download-element,
#upload-element {
  display: none;
}

#main-table {
  border-spacing: 0.5rem;
}

#main-table td:first-child {
  width: 50%;
}
#main-table td:last-child {
  width: 50%;
}

#main-form .buttons {
  display: flex;
  gap: 0.5rem;
  position: sticky;
  top: 1rem;
}

#main-form .buttons button {
  width: 50%;
  box-shadow: 0 1px 5px var(--button-drop-shadow-color);
}