:root {
  --bg: #f5f6f8; --card: #fff; --ink: #16181d; --muted: #5d6470; --line: #dde1e7;
  --accent: #0b5cad; --accent-ink: #fff; --ok: #1d7a3a; --warn: #a85b00; --err: #b3261e;
  --radius: 8px;
}
* { box-sizing: border-box; }
body { margin: 0; font: 15px/1.45 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; color: var(--ink); background: var(--bg); }
a { color: var(--accent); }
header.top { background: #111827; color: #fff; padding: 10px 16px; display: flex; gap: 16px; align-items: center; flex-wrap: wrap; }
header.top a { color: #fff; text-decoration: none; }
header.top .brand { font-weight: 700; letter-spacing: .2px; }
header.top nav { display: flex; gap: 14px; flex: 1; }
header.top form { margin: 0; }
main { max-width: 1280px; margin: 0 auto; padding: 16px; }
h1 { font-size: 22px; margin: 4px 0 12px; }
h2 { font-size: 17px; margin: 0 0 10px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 16px; margin-bottom: 16px; }
.muted { color: var(--muted); }
.small { font-size: 13px; }
.row { display: flex; gap: 12px; flex-wrap: wrap; align-items: center; }
.spacer { flex: 1; }
.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(190px, 1fr)); gap: 10px 14px; }
.grid .wide { grid-column: span 2; }
label { display: block; font-size: 13px; color: var(--muted); }
label > input, label > select, label > textarea { margin-top: 3px; }
input, select, textarea { width: 100%; font: inherit; padding: 6px 8px; border: 1px solid var(--line); border-radius: 6px; background: #fff; color: var(--ink); }
textarea { min-height: 70px; }
fieldset { border: 1px solid var(--line); border-radius: var(--radius); padding: 10px 12px 12px; margin: 0 0 12px; }
legend { font-weight: 600; padding: 0 6px; }
button, .btn { font: inherit; padding: 7px 14px; border-radius: 6px; border: 1px solid var(--line); background: #fff; color: var(--ink); cursor: pointer; text-decoration: none; display: inline-block; }
button.primary, .btn.primary { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); }
button.danger { color: var(--err); border-color: #e6b4b0; }
button.link { border: 0; background: none; color: var(--accent); padding: 0; }
button:disabled { opacity: .5; cursor: not-allowed; }
table.list { width: 100%; border-collapse: collapse; background: #fff; }
table.list th, table.list td { text-align: left; padding: 7px 8px; border-bottom: 1px solid var(--line); vertical-align: top; }
table.list th { font-size: 12px; text-transform: uppercase; letter-spacing: .4px; color: var(--muted); }
table.devices { width: 100%; border-collapse: collapse; font-size: 13px; }
table.devices th { font-size: 11px; color: var(--muted); text-align: left; padding: 4px; white-space: nowrap; }
table.devices td { padding: 2px; }
table.devices input, table.devices select { padding: 4px 5px; font-size: 13px; }
table.devices td.act { white-space: nowrap; }
table.devices td.act button { padding: 2px 6px; }
.scroll { overflow-x: auto; }
.badge { display: inline-block; font-size: 11px; padding: 1px 7px; border-radius: 10px; background: #eef1f5; color: var(--muted); }
.badge.ok { background: #e3f3e8; color: var(--ok); }
.badge.ai { background: #fff1dc; color: var(--warn); }
.flash { padding: 10px 14px; border-radius: 6px; margin-bottom: 12px; background: #e3f3e8; color: var(--ok); }
.flash.error { background: #fbe9e7; color: var(--err); }
.warnings { margin: 0; padding-left: 18px; color: var(--warn); }
.warnings li { margin-bottom: 4px; }
section[id] { scroll-margin-top: 56px; }
.subnav { position: sticky; top: 0; z-index: 5; background: var(--bg); padding: 8px 0; display: flex; gap: 6px; flex-wrap: wrap; }
.subnav a { padding: 5px 10px; border-radius: 16px; background: #fff; border: 1px solid var(--line); text-decoration: none; color: var(--ink); font-size: 14px; }
.photos { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 10px; }
.photos figure { margin: 0; background: #fff; border: 1px solid var(--line); border-radius: 6px; overflow: hidden; }
.photos img { width: 100%; height: 130px; object-fit: cover; display: block; }
.photos figcaption { padding: 4px 6px; }
.auth { max-width: 380px; margin: 8vh auto; }
.auth .card { padding: 22px; }
.auth label { margin-bottom: 10px; }
.docs a { display: block; padding: 3px 0; }
.lowconf { background: #fff7e6; }
@media (max-width: 640px) {
  .grid { grid-template-columns: 1fr 1fr; }
  .grid .wide { grid-column: span 2; }
  main { padding: 10px; }
}