:root {
  color-scheme: light dark;
  --bg: #ffffff;
  --fg: #1a1a1a;
  --muted: #4a4a4a;
  --card: #f4f4f5;
  --border: #8a8a8a;
  --accent: #0b57d0;
  --accent-fg: #ffffff;
  --error: #b3261e;
  --warning-bg: #fff4d6;
  --focus: #0b57d0;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  line-height: 1.5;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #121212;
    --fg: #f1f1f1;
    --muted: #c4c4c4;
    --card: #1f1f22;
    --border: #9a9a9a;
    --accent: #8ab4f8;
    --accent-fg: #0b1a33;
    --error: #ffb4ab;
    --warning-bg: #3a2f0b;
    --focus: #8ab4f8;
  }
}

* { box-sizing: border-box; }

body { margin: 0; background: var(--bg); color: var(--fg); }

main { max-width: 40rem; margin: 0 auto; padding: 1.5rem 1rem 3rem; }

h1 { font-size: 1.6rem; line-height: 1.25; }
h2 { font-size: 1.2rem; margin-top: 1.5rem; }

[hidden] { display: none !important; }

.card { background: var(--card); border: 1px solid var(--border); border-radius: 0.5rem; padding: 1rem; }

label { display: block; margin-top: 0.75rem; font-weight: 600; }

input[type="email"], input[type="text"] {
  display: block; width: 100%; margin-top: 0.25rem; padding: 0.6rem;
  font: inherit; color: var(--fg); background: var(--bg);
  border: 1px solid var(--border); border-radius: 0.35rem;
}

button {
  font: inherit; font-weight: 600; min-height: 2.75rem; padding: 0.5rem 1.25rem;
  color: var(--accent-fg); background: var(--accent);
  border: 2px solid var(--accent); border-radius: 0.35rem; cursor: pointer;
}
button.secondary { color: var(--accent); background: transparent; }
button.link { min-height: auto; padding: 0; color: var(--accent); background: none; border: none; text-decoration: underline; }
button:disabled { opacity: 0.5; cursor: not-allowed; }

/* Deny and Approve carry equal weight: same size, same style. */
.decision button { flex: 1 1 0; color: var(--fg); background: var(--card); border-color: var(--border); }

:focus-visible { outline: 3px solid var(--focus); outline-offset: 2px; }

.actions { display: flex; flex-wrap: wrap; gap: 0.75rem; margin-top: 1rem; }

.error { color: var(--error); }
.warning { background: var(--warning-bg); border-left: 4px solid var(--error); padding: 0.75rem 1rem; }

dt { font-weight: 600; margin-top: 0.5rem; }
dd { margin: 0.25rem 0 0.5rem; overflow-wrap: anywhere; }
.client-name { font-size: 1.1rem; }
.badge { display: inline-block; font-size: 0.85rem; padding: 0 0.4rem; border: 1px solid var(--border); border-radius: 0.25rem; color: var(--muted); }
.redirect-host { display: block; font-size: 1.4rem; font-weight: 700; }
.redirect-full { display: block; color: var(--muted); font-size: 0.9rem; }
code { overflow-wrap: anywhere; }

fieldset { border: 1px solid var(--border); border-radius: 0.5rem; margin: 0.75rem 0 0; padding: 0.5rem 1rem 1rem; }
fieldset.organization { margin-top: 0.5rem; }
legend { font-weight: 600; padding: 0 0.25rem; }
.choice { display: flex; align-items: center; gap: 0.5rem; margin-top: 0.5rem; }
.choice label { margin: 0; font-weight: 400; }
input[type="radio"] { width: 1.25rem; height: 1.25rem; margin: 0; accent-color: var(--accent); }

.signed-in { color: var(--muted); }