:root {
  --navy: #0c243c;
  --teal: #55c2c3;
  --teal-dark: #167d7f;
  --mist: #c9d1d5;
  --grey: #7e8c9c;
  --ink: #14212e;
  --bg: #f5f7f8;
  --ok: #1d7a4a;
  --bad: #b3261e;
  --warn: #8a5a00;
}
* { box-sizing: border-box; }
[hidden] { display: none !important; }
body { margin: 0; font: 16px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; color: var(--ink); background: var(--bg); }
.top { background: var(--navy); color: #fff; display: flex; align-items: center; justify-content: space-between; padding: 12px 24px; flex-wrap: wrap; gap: 8px; }
.brand { font-weight: 700; letter-spacing: .02em; }
.nav { display: flex; gap: 18px; align-items: center; }
.nav a, .nav .link { color: #fff; text-decoration: none; font: inherit; }
.nav a:hover, .nav .link:hover { color: var(--teal); }
.wrap { max-width: 880px; margin: 0 auto; padding: 24px; }
.foot { text-align: center; color: var(--grey); font-size: 13px; padding: 24px; }
h1 { font-size: 26px; margin: 8px 0 16px; color: var(--navy); }
h2 { font-size: 19px; margin: 28px 0 10px; color: var(--navy); }
.form { display: grid; gap: 14px; max-width: 440px; }
.form label { display: grid; gap: 4px; font-weight: 600; }
.form input[type=email], .form input[type=password], .form input:not([type]), .keys input {
  font: inherit; padding: 10px 12px; border: 1px solid var(--mist); border-radius: 8px; background: #fff; width: 100%;
}
.form select { font: inherit; padding: 10px 12px; border: 1px solid var(--mist); border-radius: 8px; background: #fff; width: 100%; }
.form input[readonly] { background: #eef2f4; }
.inline-form { margin-top: 10px; }
.link.danger { color: var(--bad); text-decoration: underline; font: inherit; justify-self: start; }
.form input:focus, .keys input:focus { outline: 2px solid var(--teal); border-color: var(--teal); }
.form .check { display: flex; gap: 8px; align-items: center; font-weight: 400; }
.hint { font-weight: 400; color: var(--grey); font-size: 14px; }
.btn { font: inherit; font-weight: 600; background: var(--teal-dark); color: #fff; border: 0; border-radius: 8px; padding: 10px 18px; cursor: pointer; justify-self: start; }
.btn:hover { background: var(--navy); }
a.btn { display: inline-block; text-decoration: none; }
.link { background: none; border: 0; padding: 0; cursor: pointer; }
.inline { display: inline; margin: 0; }
.alert { padding: 10px 14px; border-radius: 8px; border: 1px solid; }
.alert.error { color: var(--bad); border-color: var(--bad); background: #fdecea; }
.alert.ok { color: var(--ok); border-color: var(--ok); background: #e8f5ee; }
.alert.warn { color: var(--warn); border-color: var(--warn); background: #fff6e0; }
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 12px; }
.card { background: #fff; border: 1px solid var(--mist); border-radius: 10px; padding: 14px; display: grid; gap: 4px; }
.card .label { color: var(--grey); font-size: 13px; }
.card .value { font-size: 20px; font-weight: 700; }
.card .value.small { font-size: 15px; word-break: break-all; }
.value.ok { color: var(--ok); }
.value.bad { color: var(--bad); }
td.bad { color: var(--bad); }
.table { width: 100%; border-collapse: collapse; background: #fff; border: 1px solid var(--mist); border-radius: 10px; overflow: hidden; font-size: 14px; }
.table th, .table td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--mist); vertical-align: top; }
.table th { background: #eef2f4; color: var(--navy); }
.muted { color: var(--grey); }
.mono { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; }
.big { font-size: 20px; letter-spacing: .05em; }
.codes { columns: 2; font-size: 18px; }
.qr { background: #fff; display: inline-block; padding: 12px; border: 1px solid var(--mist); border-radius: 10px; }
.qr svg { width: 200px; height: 200px; display: block; }
.list { padding-left: 20px; }
.keys { display: grid; gap: 12px; max-width: 560px; margin-top: 12px; }
.keys label { display: grid; gap: 4px; font-weight: 600; font-family: ui-monospace, Menlo, Consolas, monospace; }
pre.text { white-space: pre-wrap; font: 13px/1.5 ui-monospace, Menlo, Consolas, monospace; background: #f5f7f8; border: 1px solid var(--mist); border-radius: 6px; padding: 10px; max-height: 360px; overflow: auto; }
details summary { cursor: pointer; }
code { background: #eef2f4; padding: 1px 6px; border-radius: 4px; }
@media (max-width: 560px) { .codes { columns: 1; } .wrap { padding: 16px; } }