:root {
  --bg: #F7F6F2; --card: #ffffff; --ink: #211D2B; --muted: #6B6675; --line: #E3E0D8;
  --brand: #2FA383; --brand-ink: #ffffff; --danger: #B4453F; --ok: #1F7A5F;
  --focus: rgba(47, 163, 131, .35);
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #16131D; --card: #211D2B; --ink: #F1EEF6; --muted: #A29CB0; --line: #372F45;
          --brand: #3FBF98; --brand-ink: #10221B; --danger: #E5807A; --ok: #6FD3B0; --focus: rgba(63, 191, 152, .4); }
}
* { box-sizing: border-box; }
html, body { margin: 0; min-height: 100%; }
body {
  background: var(--bg); color: var(--ink);
  font: 15px/1.5 Inter, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  display: flex; align-items: center; justify-content: center; padding: 24px 16px;
}
body.wide { align-items: flex-start; }
.card {
  width: 100%; max-width: 420px; background: var(--card); border: 1px solid var(--line);
  border-radius: 18px; padding: 28px 26px; box-shadow: 0 8px 30px rgba(0, 0, 0, .06);
}
.card.wide { max-width: 980px; }
.brand { display: flex; align-items: center; gap: 12px; margin-bottom: 4px; }
.brand svg { width: 40px; height: 40px; flex: none; }
h1 { font: 700 22px/1.2 Outfit, Inter, system-ui, sans-serif; margin: 0; }
h2 { font: 700 16px/1.3 Outfit, Inter, system-ui, sans-serif; margin: 22px 0 8px; }
.sub { color: var(--muted); margin: 2px 0 18px; font-size: 14px; }
.tabs { display: flex; gap: 6px; background: var(--bg); padding: 4px; border-radius: 12px; margin: 16px 0 18px; }
.tabs button {
  flex: 1; border: 0; background: transparent; color: var(--muted); font: inherit; font-weight: 600;
  padding: 9px 10px; border-radius: 9px; cursor: pointer;
}
.tabs button[aria-selected="true"] { background: var(--card); color: var(--ink); box-shadow: 0 1px 3px rgba(0, 0, 0, .12); }
label { display: block; font-weight: 600; font-size: 13px; margin: 14px 0 6px; }
input[type=text], input[type=password] {
  width: 100%; padding: 11px 12px; font: inherit; color: var(--ink); background: var(--bg);
  border: 1px solid var(--line); border-radius: 10px;
}
input:focus, button:focus-visible, a:focus-visible { outline: 3px solid var(--focus); outline-offset: 1px; border-color: var(--brand); }
.hint { color: var(--muted); font-size: 12.5px; margin: 6px 0 0; }
.btn {
  display: inline-block; width: 100%; margin-top: 18px; padding: 12px 14px; border: 0; border-radius: 10px;
  background: var(--brand); color: var(--brand-ink); font: inherit; font-weight: 700; cursor: pointer; text-align: center;
  text-decoration: none;
}
.btn.secondary { background: transparent; color: var(--ink); border: 1px solid var(--line); }
.btn.small { width: auto; margin: 0; padding: 6px 10px; font-size: 13px; }
.btn.danger { background: var(--danger); color: #fff; }
.btn:disabled { opacity: .5; cursor: not-allowed; }
.link { background: none; border: 0; padding: 0; color: var(--brand); font: inherit; font-weight: 600; cursor: pointer; }
.row { display: flex; justify-content: space-between; align-items: center; margin-top: 14px; gap: 10px; }
.msg { min-height: 20px; margin-top: 14px; font-size: 13.5px; }
.msg.err { color: var(--danger); }
.msg.ok { color: var(--ok); }
.key-box {
  margin: 14px 0 6px; padding: 14px; text-align: center; border: 2px dashed var(--brand); border-radius: 12px;
  font: 700 19px/1.3 ui-monospace, SFMono-Regular, Menlo, monospace; letter-spacing: .06em; word-break: break-all; user-select: all;
}
.callout { background: var(--bg); border: 1px solid var(--line); border-radius: 10px; padding: 12px 14px; font-size: 13.5px; margin-top: 12px; }
.checkline { display: flex; gap: 10px; align-items: flex-start; margin-top: 14px; font-size: 14px; }
.checkline input { margin-top: 3px; }
[hidden] { display: none !important; }
.topbar { display: flex; justify-content: space-between; align-items: center; gap: 12px; flex-wrap: wrap; }
.table-wrap { overflow-x: auto; margin-top: 12px; }
table { width: 100%; border-collapse: collapse; font-size: 14px; }
th, td { text-align: left; padding: 10px 8px; border-bottom: 1px solid var(--line); vertical-align: middle; white-space: nowrap; }
th { color: var(--muted); font-size: 12px; text-transform: uppercase; letter-spacing: .04em; }
.tag { display: inline-block; padding: 2px 8px; border-radius: 999px; font-size: 12px; font-weight: 700; background: var(--bg); border: 1px solid var(--line); }
.tag.warn { color: var(--danger); border-color: var(--danger); }
.tag.good { color: var(--ok); border-color: var(--ok); }
.actions { display: flex; gap: 6px; flex-wrap: wrap; }