:root {
  --bg: #0f1115; --card: #181b22; --line: #262b35;
  --fg: #e8eaed; --muted: #9aa3b2; --accent: #5b8def; --ok: #3fb950; --err: #f85149;
}
@media (prefers-color-scheme: light) {
  :root { --bg:#f6f7f9; --card:#fff; --line:#e3e6ea; --fg:#1a1d23; --muted:#5c6472; }
}
* { box-sizing: border-box; -webkit-tap-highlight-color: transparent; }
body {
  margin: 0; padding: 24px 18px calc(24px + env(safe-area-inset-bottom));
  background: var(--bg); color: var(--fg);
  font: 16px/1.55 -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
  display: flex; flex-direction: column; align-items: center;
}
main { width: 100%; max-width: 440px; }
h1 { font-size: 22px; margin: 8px 0 4px; letter-spacing: -0.01em; }
p.sub { color: var(--muted); margin: 0 0 22px; font-size: 15px; }
.card {
  background: var(--card); border: 1px solid var(--line);
  border-radius: 14px; padding: 18px; margin-bottom: 14px;
}
button {
  width: 100%; padding: 15px 18px; font-size: 16px; font-weight: 600;
  border: 0; border-radius: 12px; background: var(--accent); color: #fff;
  cursor: pointer; font-family: inherit; min-height: 50px;
}
button:disabled { opacity: .5; }
button.secondary { background: transparent; color: var(--muted); border: 1px solid var(--line); }
.row { display: flex; justify-content: space-between; gap: 12px; padding: 9px 0; border-bottom: 1px solid var(--line); font-size: 15px; }
.row:last-child { border-bottom: 0; }
.row span:first-child { color: var(--muted); }
.status { font-size: 14px; padding: 12px 14px; border-radius: 10px; margin-bottom: 14px; }
.status.ok { background: rgba(63,185,80,.12); color: var(--ok); }
.status.err { background: rgba(248,81,73,.12); color: var(--err); }
.status.info { background: rgba(91,141,239,.12); color: var(--accent); }
code { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 13px; }
.env { display:inline-block; font-size:11px; letter-spacing:.08em; text-transform:uppercase;
  padding:3px 8px; border-radius:999px; border:1px solid var(--line); color:var(--muted); }