:root {
  --bg: #f6f7f9; --card: #ffffff; --text: #16181d; --muted: #5d6470; --line: #e2e5ea;
  --accent: #2456d6; --accent-text: #ffffff; --ok: #1a7f45; --ok-bg: #e6f5ec; --err: #b42318; --err-bg: #fdecea;
  --radius: 14px;
  color-scheme: light dark;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1115; --card: #181b21; --text: #eceef2; --muted: #9aa2ae; --line: #2a2f38;
    --accent: #6b93ff; --accent-text: #0b0d12; --ok: #5fd08f; --ok-bg: #12291c; --err: #ff8a80; --err-bg: #2d1513;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0; background: var(--bg); color: var(--text);
  font: 16px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}
main { max-width: 480px; margin: 0 auto; padding: 32px 16px 48px; }
h1 { font-size: 1.5rem; margin: 0 0 4px; }
h2 { font-size: 1.1rem; margin: 28px 0 8px; }
.muted { color: var(--muted); }
.small { font-size: .875rem; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 20px; margin-top: 20px; }
label { display: block; font-weight: 600; margin-bottom: 6px; }
input {
  width: 100%; font: inherit; padding: 12px 14px; border-radius: 10px;
  border: 1px solid var(--line); background: var(--bg); color: var(--text);
}
button, .btn {
  display: block; width: 100%; font: inherit; font-weight: 600; text-align: center; text-decoration: none;
  padding: 14px 16px; border-radius: 12px; border: 1px solid transparent; cursor: pointer;
  background: var(--accent); color: var(--accent-text);
}
button.secondary, .btn.secondary { background: transparent; color: var(--accent); border-color: var(--line); }
button:disabled { opacity: .55; cursor: progress; }
.stack > * + * { margin-top: 12px; }
.msg { border-radius: 10px; padding: 12px 14px; margin-top: 16px; }
.msg.err { background: var(--err-bg); color: var(--err); }
.msg.ok { background: var(--ok-bg); color: var(--ok); }
.hidden { display: none !important; }
.done { text-align: center; padding: 28px 20px; }
.done .tick {
  width: 72px; height: 72px; border-radius: 50%; margin: 0 auto 12px; display: grid; place-items: center;
  background: var(--ok-bg); color: var(--ok); font-size: 40px; font-weight: 700;
}
table { width: 100%; border-collapse: collapse; font-size: .9rem; }
th, td { text-align: left; padding: 8px 6px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { color: var(--muted); font-weight: 600; }
.row { display: flex; gap: 8px; flex-wrap: wrap; }
.row > * { flex: 1 1 auto; width: auto; }
code { font-size: .85em; word-break: break-all; }

/* --- added for production pages --- */
.top { display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap; }
.top a, .linkbtn { color: var(--accent); background: none; border: 0; padding: 0; width: auto; display: inline; font: inherit; font-weight: 600; cursor: pointer; text-decoration: none; }
.tabs { display: flex; gap: 4px; background: var(--line); padding: 4px; border-radius: 12px; margin-top: 20px; }
.tabs button { background: transparent; color: var(--text); padding: 10px; border-radius: 9px; }
.tabs button[aria-selected="true"] { background: var(--card); box-shadow: 0 1px 2px rgb(0 0 0 / .08); }
.badge { display: inline-block; font-size: .75rem; font-weight: 600; padding: 2px 8px; border-radius: 99px; background: var(--line); color: var(--muted); vertical-align: middle; }
.badge.ok { background: var(--ok-bg); color: var(--ok); }
.badge.err { background: var(--err-bg); color: var(--err); }
.badge.accent { background: color-mix(in srgb, var(--accent) 15%, transparent); color: var(--accent); }
.grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
@media (max-width: 520px) { .grid2 { grid-template-columns: 1fr; } }
.actions { display: flex; gap: 6px 12px; flex-wrap: wrap; font-size: .9rem; }
.inline { display: flex; gap: 8px; align-items: stretch; }
.inline input { flex: 1; min-width: 0; }
.inline button { width: auto; white-space: nowrap; padding: 10px 14px; }
details summary { cursor: pointer; font-weight: 600; }
.hint { font-size: .8rem; color: var(--muted); margin-top: 4px; }
textarea { width: 100%; font: inherit; padding: 10px 12px; border-radius: 10px; border: 1px solid var(--line); background: var(--bg); color: var(--text); }