:root {
  color-scheme: dark;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
}

body {
  background: radial-gradient(1200px 600px at 50% -10%, #1b2430 0%, #0d1117 55%, #090c10 100%);
  color: #e6edf3;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial,
    "Noto Sans", sans-serif;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 24px;
  -webkit-user-select: none;
  user-select: none;
  -webkit-tap-highlight-color: transparent;
}

.gate {
  width: 100%;
  max-width: 360px;
  text-align: center;
}

.gate__title {
  font-size: 1.25rem;
  font-weight: 600;
  margin: 0 0 6px;
  letter-spacing: 0.01em;
}

.gate__hint {
  font-size: 0.85rem;
  color: #8b98a5;
  margin: 0 0 20px;
}

.gate__pad-wrap {
  display: flex;
  justify-content: center;
}

#pad {
  width: 300px;
  height: 300px;
  max-width: 82vw;
  max-height: 82vw;
  touch-action: none;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid rgba(255, 255, 255, 0.06);
  cursor: crosshair;
}

.gate__msg {
  min-height: 1.2em;
  font-size: 0.85rem;
  margin: 18px 0 0;
  color: #8b98a5;
}

.gate__msg--err,
.gate__msg.err {
  color: #ff7b72;
}