:root {
  --brand: #1e2a63;
  --brand-dark: #16204e;
  --bg: #f4f6f5;
  --card: #ffffff;
  --text: #1d2b28;
  --muted: #6b7c78;
  --line: #dfe7e5;
  --red: #b91c1c;
  --green: #15803d;
  --amber: #b45309;
  --blue: #1d4ed8;
}
* { box-sizing: border-box; }
[hidden] { display: none !important; }
body { margin: 0; background: var(--bg); color: var(--text); font: 15px/1.5 system-ui, -apple-system, "Segoe UI", sans-serif; }
a { color: var(--brand-dark); }

.topbar { background: var(--brand); color: #fff; padding: 10px 14px; display: flex; align-items: center; gap: 14px; flex-wrap: wrap; }
.brand { color: #fff; text-decoration: none; font-weight: 700; font-size: 17px; display: flex; align-items: center; gap: 8px; }
.brand span { font-weight: 300; opacity: .85; }
.brand-logo { width: 30px; height: 30px; border-radius: 8px; background: #fff; display: block; box-shadow: 0 1px 3px rgba(0,0,0,.25); }

/* Auth pages (login / register / registered) */
.auth-wrap { min-height: calc(100vh - 190px); display: flex; }
.auth-wrap .card { width: 100%; margin: auto; }
.auth-card { padding: 26px 22px; }
.auth-card h1 { text-align: center; margin: 0 0 4px; }
.auth-sub { text-align: center; margin: 0 0 16px; }
.auth-foot { text-align: center; margin-top: 16px; }
.auth-logo { width: 96px; height: 96px; border-radius: 22px; display: block; margin: 2px auto 14px; box-shadow: 0 4px 14px rgba(30,42,99,.16); border: 1px solid var(--line); }
.nav { display: flex; gap: 2px; flex-wrap: wrap; align-items: center; }
.nav a { color: #eef1ff; text-decoration: none; padding: 5px 9px; border-radius: 7px; font-size: 14px; }
.nav a.on, .nav a:hover { background: rgba(255,255,255,.18); }
.linklike { background: none; border: none; color: #eef1ff; cursor: pointer; font: inherit; font-size: 14px; padding: 5px 9px; }
.inline-form { display: inline; }

.impersonate-banner { background: #7c2d12; color: #fff; padding: 8px 14px; font-size: 14px; display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }

.container { max-width: 1080px; margin: 0 auto; padding: 16px 12px 40px; }
.footer { text-align: center; color: var(--muted); font-size: 12px; padding: 18px; }

h1 { font-size: 22px; margin: 8px 0 14px; }
h3 { margin: 18px 0 8px; font-size: 15px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 16px; margin-bottom: 14px; }
.card.narrow, .narrow { max-width: 460px; margin-left: auto; margin-right: auto; }
.center { text-align: center; }
.muted { color: var(--muted); font-size: 13px; }
.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
@media (max-width: 760px) { .two-col { grid-template-columns: 1fr; } }

.form label { display: block; margin-bottom: 10px; font-size: 13px; color: var(--muted); }
.form input, .form textarea, .form select, .form-inline input, .form-inline select {
  width: 100%; padding: 9px 10px; border: 1px solid var(--line); border-radius: 8px; font: inherit; margin-top: 3px; background: #fff; color: var(--text);
}
.form-inline { display: flex; gap: 8px; align-items: flex-end; flex-wrap: wrap; margin: 8px 0; }
.form-inline input, .form-inline select { width: auto; min-width: 120px; }
.form-inline label { font-size: 13px; color: var(--muted); }
.input-small { width: 90px !important; min-width: 70px !important; padding: 6px 8px; font-size: 13px; border: 1px solid var(--line); border-radius: 7px; }

.btn { display: inline-block; background: #e8eeec; border: 1px solid var(--line); color: var(--text); padding: 8px 14px; border-radius: 9px; font: inherit; font-size: 14px; cursor: pointer; text-decoration: none; }
.btn:hover { filter: brightness(.97); }
.btn-primary { background: var(--brand); border-color: var(--brand); color: #fff; }
.btn-danger { background: #fee2e2; border-color: #fca5a5; color: var(--red); }
.btn-light { background: #fff; }
.btn-small { padding: 4px 10px; font-size: 13px; }
.btn-block { display: block; width: 100%; text-align: center; margin-top: 6px; }
.btn-row { display: flex; gap: 8px; flex-wrap: wrap; }
.btn-row form { margin: 0; }

.alert { padding: 10px 12px; border-radius: 9px; margin-bottom: 12px; font-size: 14px; }
.alert-red { background: #fee2e2; color: var(--red); }
.alert-green { background: #dcfce7; color: var(--green); }

.table-wrap { overflow-x: auto; }
table { border-collapse: collapse; width: 100%; font-size: 14px; }
th { text-align: left; color: var(--muted); font-weight: 600; font-size: 12px; text-transform: uppercase; letter-spacing: .03em; }
th, td { padding: 8px 10px; border-bottom: 1px solid var(--line); vertical-align: top; }
.kv th { width: 130px; text-transform: none; letter-spacing: 0; }
.row-muted { opacity: .5; }

.badge { display: inline-block; padding: 2px 9px; border-radius: 999px; font-size: 12px; font-weight: 600; white-space: nowrap; }
.badge-green { background: #dcfce7; color: var(--green); }
.badge-red { background: #fee2e2; color: var(--red); }
.badge-amber { background: #fef3c7; color: var(--amber); }
.badge-blue { background: #dbeafe; color: var(--blue); }
.tag { display: inline-block; background: #e4e9f7; color: var(--brand-dark); font-weight: 700; font-size: 12px; padding: 2px 8px; border-radius: 6px; }
.chip { display: inline-block; padding: 5px 12px; border-radius: 999px; border: 1px solid var(--line); background: #fff; text-decoration: none; font-size: 13px; margin: 0 4px 6px 0; color: var(--text); }
.chip.on { background: var(--brand); border-color: var(--brand); color: #fff; }

.stat-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 10px; margin-bottom: 14px; }
.stat { background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 14px; text-decoration: none; color: var(--text); }
.stat-num { font-size: 24px; font-weight: 700; }
.stat-label { color: var(--muted); font-size: 12px; }

.balance-row { display: flex; justify-content: space-between; align-items: center; gap: 10px; padding: 12px; border: 1px solid var(--line); border-radius: 10px; margin-bottom: 8px; flex-wrap: wrap; }

.qr-reader { max-width: 420px; margin: 0 auto; border-radius: 12px; overflow: hidden; background: #0b1513; min-height: 60px; }
.scan-controls { max-width: 420px; margin: 10px auto; }
.manual-entry { max-width: 420px; margin: 0 auto; }
.manual-entry summary { color: var(--muted); font-size: 13px; cursor: pointer; }

.overlay { position: fixed; inset: 0; background: rgba(0,0,0,.55); display: flex; align-items: center; justify-content: center; padding: 18px; z-index: 50; }
.result-card { background: #fff; border-radius: 16px; padding: 26px 20px; max-width: 380px; width: 100%; text-align: center; }
.result-card.ok { background: #f0fdf4; border: 3px solid var(--green); }
.result-card.bad { background: #fef2f2; border: 3px solid var(--red); }
.result-icon { font-size: 56px; line-height: 1; }
.result-title { font-size: 22px; font-weight: 800; margin: 10px 0 6px; }
.result-card.ok .result-title { color: var(--green); }
.result-card.bad .result-title { color: var(--red); }
.result-detail { font-size: 15px; margin-bottom: 16px; }

.qr-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 14px; }
.qr-item { text-align: center; border: 1px solid var(--line); border-radius: 12px; padding: 12px; }
.qr-item img { max-width: 100%; }
.payload { display: block; font-size: 10px; word-break: break-all; color: var(--muted); margin-top: 6px; }
.apikey { display: block; background: #f1f5f4; border: 1px solid var(--line); border-radius: 8px; padding: 8px 10px; font-size: 12px; word-break: break-all; margin: 8px 0; }