/* Tokens copied from the app's styles.css so the page matches it in both themes. */
:root {
  --bg: #ffffff;
  --bg-raised: #f3f3f3;
  --fg: #141414;
  --fg-muted: #6b6b6b;
  --border: #e3e3e3;
  --accent: #141414;
  --accent-fg: #ffffff;
  --ring: #767676;
  --link: #1a66d2;
  --error: #c62828;
  --error-bg: #fdecea;
  color-scheme: light dark;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #121212;
    --bg-raised: #1f1f1f;
    --fg: #f5f5f5;
    --fg-muted: #a3a3a3;
    --border: #2a2a2a;
    --accent: #f5f5f5;
    --accent-fg: #121212;
    --ring: #8c8c8c;
    --link: #4695fb;
    --error: #f07171;
    --error-bg: #2a1717;
  }
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }

body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
  background: var(--bg);
  color: var(--fg);
  font: 14px/1.4 system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
}

.card {
  width: 100%;
  max-width: 360px;
  padding: 28px 24px;
  background: var(--bg-raised);
  border: 1px solid var(--border);
  border-radius: 12px;
}

h1 { margin: 0 0 20px; font-size: 20px; font-weight: 600; }

form { display: flex; flex-direction: column; gap: 6px; }

label { margin-top: 10px; font-size: 12px; color: var(--fg-muted); }

input {
  width: 100%;
  padding: 9px 10px;
  background: var(--bg);
  color: var(--fg);
  border: 1px solid var(--border);
  border-radius: 8px;
  font: inherit;
}
input:focus-visible, button:focus-visible { outline: 2px solid var(--ring); outline-offset: 1px; }
#code { letter-spacing: 0.2em; font-variant-numeric: tabular-nums; }

button {
  font: inherit;
  cursor: pointer;
}
#submit {
  margin-top: 16px;
  padding: 10px 12px;
  background: var(--accent);
  color: var(--accent-fg);
  border: 0;
  border-radius: 8px;
  font-weight: 600;
}
#submit:disabled { opacity: 0.6; cursor: default; }

.link {
  align-self: center;
  margin-top: 6px;
  padding: 4px;
  background: none;
  border: 0;
  color: var(--link);
}
.link:hover { text-decoration: underline; }

.error {
  margin: 8px 0 0;
  padding: 8px 10px;
  background: var(--error-bg);
  color: var(--error);
  border-radius: 8px;
}

/* A finger needs bigger targets, and iOS zooms in on a field with text under 16px. */
@media (pointer: coarse) {
  input { padding: 11px 12px; font-size: 16px; }
  #submit { padding: 12px; }
}