:root {
  --bg: #f4f5f7;
  --card: #fff;
  --ink: #1f2430;
  --muted: #6b7280;
  --line: #e3e6ea;
  --accent: #2f6df0;
  --accent-ink: #fff;
  --danger: #d23f3f;
  --ok: #2a9d57;
  --warn: #c9870a;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  background: var(--bg);
  color: var(--ink);
  font-size: 15px;
}
.topbar {
  display: flex; align-items: center; gap: 1.5rem;
  background: #1f2430; color: #fff; padding: .7rem 1.2rem;
}
.topbar .brand { color: #fff; font-weight: 700; text-decoration: none; }
.topbar nav { margin-left: auto; display: flex; align-items: center; gap: 1rem; }
.topbar nav a { color: #cdd3df; text-decoration: none; }
.topbar nav a:hover { color: #fff; }
.topbar .user { color: #9aa3b2; font-size: .85rem; }
main { max-width: 960px; margin: 1.4rem auto; padding: 0 1rem; }

.card {
  background: var(--card); border: 1px solid var(--line);
  border-radius: 10px; padding: 1.1rem 1.2rem; margin-bottom: 1rem;
}
.card.narrow { max-width: 380px; margin: 3rem auto; }
h1 { font-size: 1.4rem; margin: 0 0 .8rem; }
h2 { font-size: 1.1rem; margin: 0 0 .7rem; }

label { display: block; margin: .6rem 0; font-weight: 600; font-size: .9rem; }
input[type=text], input[type=password], input[type=number], textarea, select {
  width: 100%; margin-top: .25rem; padding: .5rem .6rem;
  border: 1px solid #cbd2db; border-radius: 7px; font: inherit; font-weight: 400;
  background: #fff;
}
textarea { resize: vertical; }
input[disabled] { background: #f0f1f3; color: #9aa3b2; }

button, .btn {
  display: inline-block; cursor: pointer; font: inherit;
  border: 1px solid #cbd2db; background: #fff; color: var(--ink);
  padding: .45rem .8rem; border-radius: 7px; text-decoration: none;
}
button:hover, .btn:hover { background: #f0f2f5; }
.primary { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); }
.primary:hover { background: #2459c9; }
.danger { color: var(--danger); border-color: #e7b7b7; }
.danger:hover { background: #fbeaea; }
.link { border: none; background: none; color: #cdd3df; padding: 0; }
.link:hover { background: none; color: #fff; text-decoration: underline; }

.row { display: flex; gap: .6rem; align-items: center; }
.row.wrap { flex-wrap: wrap; }
.row input[type=text], .row input[type=password] { width: auto; flex: 1; margin-top: 0; }
.inline { display: inline; margin: 0; }
.cb { display: inline-flex; align-items: center; gap: .3rem; font-weight: 400; margin: 0; }
.cb input { width: auto; margin: 0; }

table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: .5rem .5rem; border-bottom: 1px solid var(--line); vertical-align: middle; }
th { font-size: .8rem; text-transform: uppercase; letter-spacing: .03em; color: var(--muted); }
table.files input[type=number] { width: 60px; }
.actions { display: flex; gap: .4rem; white-space: nowrap; }

.muted { color: var(--muted); }
.small { font-size: .82rem; }
code { background: #eef0f3; padding: .1rem .3rem; border-radius: 4px; font-size: .85em; }
pre.json {
  background: #11151c; color: #d6e2f5; padding: 1rem; border-radius: 8px;
  overflow: auto; max-height: 70vh; font-size: .8rem; line-height: 1.45;
}

.head-row { display: flex; align-items: center; justify-content: space-between; gap: 1rem; flex-wrap: wrap; }
.gen { display: flex; align-items: center; gap: .5rem; flex-wrap: wrap; }
.badge { padding: .2rem .55rem; border-radius: 999px; font-size: .78rem; font-weight: 700; }
.badge.ok { background: #e3f5ea; color: var(--ok); }
.badge.warn { background: #fbf0d9; color: var(--warn); }

.flashes { margin-bottom: 1rem; }
.flash { padding: .6rem .8rem; border-radius: 7px; margin-bottom: .4rem; }
.flash.success { background: #e3f5ea; color: var(--ok); }
.flash.error { background: #fbeaea; color: var(--danger); }
.sticky-save { position: sticky; bottom: 0; display: flex; align-items: center; gap: .8rem; }
.prompt-help { display: flex; align-items: center; gap: .5rem; flex-wrap: wrap;
  margin-top: .6rem; padding-top: .7rem; border-top: 1px dashed var(--line); }

.center { text-align: center; }
.qrcode { display: inline-block; margin: 1rem auto; }
.qrcode img, .qrcode canvas { display: block; }