:root {
  color-scheme: dark;
  --surface: #15161d;
  --raised: #1d1e27;
  --line: #2d2f3b;
  --text: #eceaf6;
  --text-2: #b4b1c6;
  --accent: #a99cff;
  --accent-ink: #1a1633;
  --danger: #ff93a6;
  font-family: "Segoe UI Variable Text", "Segoe UI", system-ui, -apple-system, sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  min-height: 100dvh;
  display: grid;
  place-items: center;
  padding: 24px 16px;
  background: var(--surface);
  color: var(--text);
}

.login {
  width: min(360px, 100%);
  display: grid;
  gap: 12px;
}

.login-brand {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: radial-gradient(circle at 35% 30%, #f2efff, var(--accent) 45%, #5b4fb8 100%);
  box-shadow: 0 0 24px color-mix(in srgb, var(--accent) 45%, transparent);
}

h1 {
  margin: 4px 0 0;
  font-size: 1.4rem;
  font-weight: 600;
}

.login-intro,
.login-note {
  margin: 0;
  color: var(--text-2);
  font-size: 0.9rem;
  line-height: 1.45;
}

form {
  display: grid;
  gap: 8px;
  margin-top: 8px;
}

label {
  font-size: 0.85rem;
  color: var(--text-2);
}

input {
  width: 100%;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--raised);
  color: var(--text);
  /* 16px keeps iOS from zooming into the field. */
  font: inherit;
  font-size: 16px;
}

input:focus-visible,
button:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

#code {
  letter-spacing: 0.3em;
  font-variant-numeric: tabular-nums;
}

button {
  margin-top: 8px;
  padding: 12px;
  border: 0;
  border-radius: 10px;
  background: var(--accent);
  color: var(--accent-ink);
  font: inherit;
  font-weight: 600;
  cursor: pointer;
}

button:disabled {
  opacity: 0.55;
  cursor: default;
}

.login-message {
  margin: 4px 0 0;
  color: var(--danger);
  font-size: 0.9rem;
}