:root {
  color-scheme: dark;
  --bg: #101418;
  --panel: #171d23;
  --text: #eef3f7;
  --muted: #9aa8b5;
  --line: #29333d;
  --accent: #62c4ff;
  --danger: #ff7a7a;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--text);
  font-family: "IBM Plex Sans", system-ui, sans-serif;
}

main {
  display: grid;
  min-height: 100vh;
  place-items: center;
  padding: 24px;
}

.panel {
  width: min(680px, 100%);
}

h1 {
  margin: 0 0 12px;
  font-size: 30px;
}

.muted {
  color: var(--muted);
  line-height: 1.5;
}

label {
  display: grid;
  gap: 8px;
  margin-top: 18px;
  color: var(--muted);
  font-size: 14px;
}

input,
button,
pre {
  border-radius: 8px;
  font: inherit;
}

input {
  width: 100%;
  border: 1px solid var(--line);
  background: var(--panel);
  color: var(--text);
  padding: 12px;
}

button {
  margin-top: 14px;
  border: 0;
  background: var(--accent);
  color: #071016;
  cursor: pointer;
  font-weight: 700;
  padding: 11px 16px;
}

button:disabled {
  cursor: wait;
  opacity: .6;
}

pre {
  min-height: 86px;
  margin-top: 20px;
  border: 1px solid var(--line);
  background: var(--panel);
  color: var(--muted);
  overflow: auto;
  padding: 14px;
  white-space: pre-wrap;
}

.hidden {
  display: none;
}