:root {
    --bg: #f4f5f7;
    --card: #fff;
    --text: #1d2330;
    --muted: #667085;
    --border: #d0d5dd;
    --accent: #2457c5;
    --danger: #c0352b;
    --ok-bg: #e8f5ec; --ok: #1e6b3a;
    --err-bg: #fdecea; --err: #9b2c22;
    --info-bg: #e9f0fc; --info: #1f4a9c;
}
* { box-sizing: border-box; }
body { margin: 0; font: 16px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; background: var(--bg); color: var(--text); }
a { color: var(--accent); }
.topbar { display: flex; flex-wrap: wrap; gap: 8px 24px; align-items: center; justify-content: space-between; padding: 12px 24px; background: var(--card); border-bottom: 1px solid var(--border); }
.brand { font-weight: 600; }
.topbar nav { display: flex; flex-wrap: wrap; gap: 16px; align-items: center; }
main { max-width: 900px; margin: 24px auto; padding: 0 16px; }
.card { background: var(--card); border: 1px solid var(--border); border-radius: 8px; padding: 24px; margin-bottom: 24px; }
.card.narrow { max-width: 480px; margin-left: auto; margin-right: auto; }
h1 { font-size: 1.4rem; margin-top: 0; }
h2 { font-size: 1.15rem; margin-top: 0; }
label { display: block; margin-bottom: 14px; font-weight: 500; }
label.radio { font-weight: normal; display: flex; gap: 8px; align-items: center; }
input:not([type=radio]):not([type=checkbox]), select { display: block; width: 100%; margin-top: 4px; padding: 9px 11px; font: inherit; border: 1px solid var(--border); border-radius: 6px; background: #fff; }
input.code { font-size: 1.4rem; letter-spacing: .3em; text-align: center; }
fieldset { border: 1px solid var(--border); border-radius: 6px; margin: 0 0 16px; padding: 12px 16px; }
.indent { margin-left: 26px; }
button { font: inherit; padding: 9px 18px; border: 0; border-radius: 6px; background: var(--accent); color: #fff; cursor: pointer; }
button.secondary { background: #fff; color: var(--text); border: 1px solid var(--border); }
button.danger { background: var(--danger); }
button.link { background: none; color: var(--accent); padding: 0; text-decoration: underline; }
form.inline { display: inline; margin: 0; }
.actions { display: flex; flex-wrap: wrap; gap: 16px; align-items: flex-end; }
.actions form { margin: 0; }
.alert { padding: 12px 16px; border-radius: 6px; margin-bottom: 20px; }
.alert.success { background: var(--ok-bg); color: var(--ok); }
.alert.error { background: var(--err-bg); color: var(--err); }
.alert.info { background: var(--info-bg); color: var(--info); }
.muted { color: var(--muted); font-size: .92rem; }
.warn { color: var(--danger); }
code.secret { display: inline-block; padding: 4px 8px; background: #f2f4f7; border-radius: 4px; font-size: 1rem; word-break: break-all; }
code.secret.big { display: block; margin: 8px 0; font-size: 1.3rem; user-select: all; color: var(--text); }
.qr { width: 220px; height: 220px; margin: 8px auto 16px; }
.qr svg { width: 100%; height: 100%; }
.checklist { max-height: 420px; overflow-y: auto; border: 1px solid var(--border); border-radius: 6px; padding: 10px 14px; margin-bottom: 16px; }
.checklist label { margin-bottom: 6px; }
table { width: 100%; border-collapse: collapse; font-size: .95rem; }
th, td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--border); vertical-align: top; }
.card { overflow-x: auto; }
.nowrap { white-space: nowrap; }