:root {
  --bg: #eef3f8; --card: #fff; --line: #d5dde6; --text: #1d2b3a; --muted: #5e7287;
  --blue: #1f6fd1; --green: #2b8a3e; --brand-blue: #1f3f8c; --danger: #b00020; --warn-bg: #fff4e5; --warn-text: #8a4b00; --ok-bg: #e9f7ee;
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--text); font: 14px/1.45 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; }
a { color: var(--blue); }
.topbar { display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap; padding: 10px 16px; background: #fff; border-bottom: 1px solid var(--line); }
.brand { font-weight: 700; text-decoration: none; }
.brandGreen { color: var(--green); } .brandBlue { color: var(--brand-blue); }
.nav { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; }
.nav .who { color: var(--muted); }
main { margin: 24px auto; padding: 0 16px; }
main.narrow { max-width: 420px; } main.wide { max-width: 1100px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 14px; padding: 20px; margin-bottom: 16px; box-shadow: 0 6px 24px rgba(16,38,60,.06); }
h1 { font-size: 20px; margin: 0 0 12px; } h2 { font-size: 16px; margin: 0 0 10px; }
.muted { color: var(--muted); font-size: 13px; }
form.stack { display: flex; flex-direction: column; gap: 12px; }
label { display: flex; flex-direction: column; gap: 4px; font-size: 13px; color: #34495e; }
label.inline { flex-direction: row; align-items: center; gap: 8px; }
input, select { padding: 9px 10px; font-size: 14px; border: 1px solid #c7d1dc; border-radius: 8px; background: #fff; }
button, .button { display: inline-block; padding: 9px 14px; font-size: 14px; font-weight: 600; border: 0; border-radius: 8px; background: var(--blue); color: #fff; cursor: pointer; text-decoration: none; }
button.secondary { background: #e8eef5; color: var(--text); }
button.danger { background: var(--danger); }
button.small { padding: 5px 10px; font-size: 12px; }
.alert { padding: 10px 12px; border-radius: 8px; margin-bottom: 12px; font-size: 13px; }
.alert.error { background: #fdecee; color: var(--danger); border: 1px solid #f3b8c0; }
.alert.info { background: var(--ok-bg); color: #1e5d32; border: 1px solid #b6e0c4; }
.alert.warn { background: var(--warn-bg); color: var(--warn-text); border: 1px solid #f3c98b; }
.validation-summary-errors ul, .field-validation-error { color: var(--danger); font-size: 12px; margin: 0; padding-left: 16px; }
table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 8px 6px; border-bottom: 1px solid #e6ecf2; vertical-align: top; font-size: 13px; }
th { color: var(--muted); font-weight: 600; }
.tag { display: inline-block; padding: 1px 8px; border-radius: 999px; font-size: 12px; background: #e8eef5; margin: 1px 2px 1px 0; }
.tag.ok { background: var(--ok-bg); color: #1e5d32; } .tag.off { background: #fdecee; color: var(--danger); } .tag.pending { background: var(--warn-bg); color: var(--warn-text); }
.row { display: flex; gap: 10px; flex-wrap: wrap; align-items: flex-end; }
.linkbox { display: flex; gap: 8px; } .linkbox input { flex: 1; font-family: ui-monospace, Consolas, monospace; font-size: 12px; }
.qr svg { width: 200px; height: 200px; }
code.key { font-family: ui-monospace, Consolas, monospace; font-size: 15px; letter-spacing: 1px; }
.codes { columns: 2; font-family: ui-monospace, Consolas, monospace; font-size: 15px; padding-left: 18px; }
form.inline { display: inline; }