:root {
  --navy: #1b2a6b;
  --ink: #1d2433;
  --muted: #5a6275;
  --line: #d9dde8;
  --green: #145c2e; --green-bg: #e5f5ea;
  --amber: #7a4a00; --amber-bg: #fff3d6;
  --red: #8a1c1c; --red-bg: #fbe7e7;
}
* { box-sizing: border-box; }
body {
  margin: 0; background: #f6f7fb; color: var(--ink);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.5; font-size: 16px;
}
.wrap { max-width: 480px; margin: 0 auto; padding: 16px; }
h1 { color: var(--navy); font-size: 1.4rem; margin: 8px 0 12px; }
h2 { color: var(--navy); font-size: 1.15rem; margin: 0 0 8px; }
.ref { color: var(--navy); font-weight: 700; letter-spacing: .08em; font-size: 1.1rem; margin: 8px 0 0; }
.lead { font-size: 1.1rem; margin: 8px 0 16px; }
.card { background: #fff; border: 1px solid var(--line); border-radius: 10px; padding: 14px; margin: 0 0 14px; }
.signer-name { font-weight: 600; margin: 0 0 6px; }
.badge { display: inline-block; margin: 0; padding: 2px 10px; border-radius: 999px; background: #e8ebf7; color: var(--navy); font-weight: 600; font-size: .9rem; }
.note { color: var(--muted); font-size: .9rem; margin: 8px 0 0; }
.note-error { color: var(--red); }
label { display: block; font-weight: 600; margin: 8px 0 4px; }
input[type=text], textarea {
  width: 100%; padding: 10px; border: 1px solid var(--line); border-radius: 8px; font: inherit;
}
.btn {
  display: inline-block; margin-top: 10px; padding: 11px 16px; border: 0; border-radius: 8px;
  background: var(--navy); color: #fff; font: inherit; font-weight: 600; cursor: pointer; text-align: center;
}
.btn-danger { background: var(--red); }
.btn-file { margin-top: 4px; }
.visually-hidden { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
#file:focus-visible + .note { text-decoration: underline; }
.state { border-radius: 10px; padding: 14px; margin: 0 0 14px; border: 1px solid transparent; }
.state p { margin: 0 0 8px; }
.state-genuine { background: var(--green-bg); color: var(--green); border-color: var(--green); font-weight: 600; }
.state-additions { background: var(--amber-bg); color: var(--amber); border-color: var(--amber); }
.state-nomatch, .state-unknown { background: var(--red-bg); color: var(--red); border-color: var(--red); }
.footer { color: var(--muted); font-size: .85rem; text-align: center; }
[hidden] { display: none !important; }

/* Admin pages */
.admin-nav { display: flex; flex-wrap: wrap; gap: 14px; align-items: center; margin: 0 0 12px; }
.admin-nav a { color: var(--navy); font-weight: 600; }
form.inline { display: inline; }
button.link { background: none; border: 0; padding: 0; color: var(--navy); font: inherit; font-weight: 600; text-decoration: underline; cursor: pointer; }
.code { font-size: 1.6rem; font-weight: 700; letter-spacing: .12em; color: var(--navy); margin: 8px 0 0; }
input[type=password] { width: 100%; padding: 10px; border: 1px solid var(--line); border-radius: 8px; font: inherit; }
.card .btn { margin-right: 8px; }