:root {
  --navy: #14284b;
  --navy-2: #1d3a6b;
  --gold: #b8902f;
  --bg: #f4f6fa;
  --card: #ffffff;
  --text: #1c2433;
  --muted: #5d6676;
  --border: #dde2ec;
  --ok: #1a7f4b;
  --ok-bg: #e6f6ee;
  --bad: #b3261e;
  --bad-bg: #fdecea;
  --warn: #8a5a00;
  --warn-bg: #fff4de;
  --radius: 12px;
}
* { box-sizing: border-box; }
html, body { margin: 0; }
body {
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
}
a { color: var(--navy-2); }
[hidden] { display: none !important; }

.topbar {
  background: var(--navy);
  color: #fff;
  border-bottom: 3px solid var(--gold);
}
.topbar-inner {
  max-width: 1100px; margin: 0 auto; padding: 14px 20px;
  display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap;
}
.brand { font-weight: 700; letter-spacing: .3px; color: #fff; text-decoration: none; font-size: 1.1rem; }
.brand span { color: var(--gold); }
.topbar nav { display: flex; gap: 14px; align-items: center; font-size: .92rem; }
.topbar nav a, .topbar nav button { color: #dbe3f3; text-decoration: none; background: none; border: 0; cursor: pointer; font: inherit; }
.topbar nav a:hover, .topbar nav button:hover { color: #fff; }

main { max-width: 1100px; margin: 0 auto; padding: 28px 20px 60px; }
main.narrow { max-width: 680px; }

.card {
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 24px; box-shadow: 0 1px 3px rgba(20, 40, 75, .06);
}
.card + .card { margin-top: 20px; }
h1 { font-size: 1.7rem; margin: 0 0 6px; color: var(--navy); }
h2 { font-size: 1.15rem; margin: 0 0 14px; color: var(--navy); }
.lead { color: var(--muted); margin: 0 0 20px; }
.muted { color: var(--muted); font-size: .9rem; }

label { display: block; font-weight: 600; font-size: .88rem; margin-bottom: 4px; }
input, select, textarea {
  width: 100%; padding: 10px 12px; border: 1px solid var(--border); border-radius: 8px;
  font: inherit; background: #fff; color: var(--text);
}
input:focus, select:focus, textarea:focus, button:focus-visible, a:focus-visible {
  outline: 2px solid var(--navy-2); outline-offset: 1px; border-color: var(--navy-2);
}
.field { margin-bottom: 14px; }
.grid { display: grid; grid-template-columns: 1fr 1fr; gap: 0 16px; }
@media (max-width: 640px) { .grid { grid-template-columns: 1fr; } }

.btn {
  display: inline-block; padding: 10px 18px; border-radius: 8px; border: 1px solid var(--navy);
  background: var(--navy); color: #fff; font: inherit; font-weight: 600; cursor: pointer; text-decoration: none;
}
.btn:hover { background: var(--navy-2); }
.btn:disabled { opacity: .6; cursor: not-allowed; }
.btn.secondary { background: #fff; color: var(--navy); }
.btn.secondary:hover { background: #eef2fa; }
.btn.danger { background: var(--bad); border-color: var(--bad); }
.btn.danger:hover { background: #8f1d17; }
.btn.small { padding: 5px 10px; font-size: .84rem; }
.row { display: flex; gap: 10px; flex-wrap: wrap; align-items: flex-end; }
.row > .grow { flex: 1 1 220px; }

.alert { padding: 10px 14px; border-radius: 8px; margin-bottom: 14px; font-size: .94rem; }
.alert.error { background: var(--bad-bg); color: var(--bad); border: 1px solid #f3c1bd; }
.alert.success { background: var(--ok-bg); color: var(--ok); border: 1px solid #b5e3cb; }

/* Verification result */
.result { margin-top: 24px; border-radius: var(--radius); border: 2px solid var(--border); overflow: hidden; background: #fff; }
.result-head { padding: 16px 20px; display: flex; gap: 14px; align-items: center; }
.result-icon { font-size: 2rem; line-height: 1; }
.result-title { font-size: 1.3rem; font-weight: 700; margin: 0; }
.result-sub { margin: 0; font-size: .92rem; }
.result.valid { border-color: var(--ok); }
.result.valid .result-head { background: var(--ok-bg); color: var(--ok); }
.result.revoked, .result.not_found, .result.tampered { border-color: var(--bad); }
.result.revoked .result-head, .result.not_found .result-head, .result.tampered .result-head { background: var(--bad-bg); color: var(--bad); }
.result.code_mismatch { border-color: var(--warn); }
.result.code_mismatch .result-head { background: var(--warn-bg); color: var(--warn); }
.details { padding: 8px 20px 18px; }
.details dl { display: grid; grid-template-columns: 170px 1fr; gap: 8px 16px; margin: 12px 0 0; }
.details dt { color: var(--muted); font-weight: 600; font-size: .9rem; }
.details dd { margin: 0; word-break: break-word; }
.mono { font-family: ui-monospace, Consolas, monospace; }
.note { margin: 14px 20px 18px; padding: 10px 14px; background: #f1f4fa; border-radius: 8px; font-size: .88rem; color: var(--muted); }
@media (max-width: 560px) { .details dl { grid-template-columns: 1fr; gap: 2px; } .details dt { margin-top: 8px; } }

/* Scanner */
.scanner { margin-top: 16px; }
.scanner video { width: 100%; max-width: 420px; border-radius: 10px; background: #000; display: block; }
.divider { text-align: center; color: var(--muted); margin: 16px 0; font-size: .85rem; }

/* Admin */
.stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; margin-bottom: 20px; }
.stat { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 14px 18px; }
.stat b { display: block; font-size: 1.6rem; color: var(--navy); }
.stat span { color: var(--muted); font-size: .85rem; }
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: .92rem; }
th, td { text-align: left; padding: 10px 10px; border-bottom: 1px solid var(--border); vertical-align: middle; }
th { color: var(--muted); font-size: .8rem; text-transform: uppercase; letter-spacing: .5px; }
.badge { display: inline-block; padding: 2px 10px; border-radius: 999px; font-size: .78rem; font-weight: 700; }
.badge.valid { background: var(--ok-bg); color: var(--ok); }
.badge.revoked { background: var(--bad-bg); color: var(--bad); }
.actions { display: flex; gap: 6px; flex-wrap: wrap; }
.pager { display: flex; gap: 10px; align-items: center; justify-content: flex-end; margin-top: 14px; }
.issued-box { margin-top: 16px; }
.issued-box img { width: 140px; height: 140px; border: 1px solid var(--border); border-radius: 8px; }
.issued-flex { display: flex; gap: 20px; align-items: center; flex-wrap: wrap; }

dialog { border: 0; border-radius: var(--radius); padding: 24px; max-width: 460px; width: calc(100% - 32px); box-shadow: 0 10px 40px rgba(0,0,0,.25); }
dialog::backdrop { background: rgba(10, 20, 40, .5); }