/* XLUX Admin — dense, dark, modern admin. Same design language as library-admin;
   layout leans on the UniFi reference (top nav, KPI tiles, list + detail panel). */
:root {
  --bg: #0c0d0f; --surface: #161719; --surface2: #1d1f22; --surface3: #26282c;
  --border: rgba(255,255,255,.08); --border2: rgba(255,255,255,.14);
  --text: #e8e9eb; --text2: rgba(232,233,235,.62); --text3: rgba(232,233,235,.34);
  --accent: #2e90fa; --ok: #12b76a; --warn: #f79009; --danger: #f04438; --cloud: #22d3ee;
  --radius: 10px;
  font-synthesis: none; -webkit-text-size-adjust: 100%;
}
* { box-sizing: border-box; }
[hidden] { display: none !important; }  /* author display rules must never beat the hidden attribute */
html, body { margin: 0; height: 100%; }
body {
  background: var(--bg); color: var(--text);
  font: 13px/1.45 -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, system-ui, sans-serif;
  display: flex; flex-direction: column; height: 100vh; overflow: hidden;
}
b { font-weight: 650; }
button, input, select { font: inherit; color: inherit; }
code { background: var(--surface3); padding: 1px 5px; border-radius: 5px; font-size: 12px; }

/* ── topbar ── */
.topbar { display: flex; align-items: center; gap: 18px; padding: 8px 16px; min-height: 52px;
  background: var(--surface); border-bottom: 1px solid var(--border); flex: 0 0 auto; }
.brand { font-size: 15px; font-weight: 500; letter-spacing: .2px; white-space: nowrap; display: flex; align-items: center; gap: 8px; }
.brand b { font-weight: 700; }
.brand.big { font-size: 22px; justify-content: center; margin-bottom: 6px; }
.brand-logo { width: 23px; height: 23px; display: inline-block; background: currentColor; flex: 0 0 auto;
  -webkit-mask: url(/logo.svg) no-repeat center / contain; mask: url(/logo.svg) no-repeat center / contain; }
.topbar-right { display: flex; align-items: center; gap: 12px; margin-left: auto; }
.whoami { font-size: 12px; color: var(--text2); }
.ghost-btn { background: var(--surface2); border: 1px solid var(--border); color: var(--text2);
  border-radius: 7px; padding: 5px 9px; cursor: pointer; font-size: 12px; }
.ghost-btn:hover { color: var(--text); border-color: var(--border2); }
.primary-btn { background: var(--accent); border: none; color: #fff; border-radius: 8px;
  padding: 9px 22px; cursor: pointer; font-weight: 600; }
.primary-btn:hover { filter: brightness(1.1); }
.danger-btn { background: transparent; border: 1px solid var(--danger); color: var(--danger);
  border-radius: 7px; padding: 4px 8px; cursor: pointer; font-size: 12px; }
.danger-btn:hover { background: rgba(240,68,56,.12); }

/* ── segmented nav ── */
.seg { display: inline-flex; background: var(--surface2); border: 1px solid var(--border); border-radius: 8px; padding: 2px; }
.seg button { background: none; border: none; border-radius: 6px; padding: 5px 12px; cursor: pointer; color: var(--text2); }
.seg button.is-on { background: var(--surface3); color: var(--text); }

/* ── login gate ── */
.gate { display: flex; align-items: center; justify-content: center; height: 100vh; }
.gate-card { background: var(--surface); border: 1px solid var(--border); border-radius: 14px;
  padding: 34px 40px; width: min(440px, 92vw); text-align: center; }
.gate-msg { color: var(--text2); margin: 4px 0 18px; }
.gate-setup { text-align: left; margin-top: 18px; padding: 12px 14px; background: var(--surface2);
  border: 1px solid var(--border); border-radius: 10px; color: var(--text2); font-size: 12px; }

/* ── main / views ── */
#main { flex: 1 1 auto; overflow-y: auto; padding: 16px; }
.view { max-width: 1280px; margin: 0 auto; display: flex; flex-direction: column; gap: 14px; }

.kpi-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 10px; }
.kpi { padding: 14px 18px; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); }
.kpi .v { font-size: 22px; font-weight: 680; letter-spacing: .3px; }
.kpi .l { font-size: 10.5px; color: var(--text3); text-transform: uppercase; letter-spacing: .5px; margin-top: 2px; }

.panel { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; }
.panel-head { display: flex; align-items: center; gap: 10px; padding: 10px 14px; border-bottom: 1px solid var(--border); }
.panel-head h2 { margin: 0; font-size: 13px; font-weight: 650; }

/* ── toolbar ── */
.toolbar { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.search-wrap { flex: 1 1 260px; min-width: 200px; }
.search-wrap input { width: 100%; height: 32px; padding: 0 12px; background: var(--surface2);
  border: 1px solid var(--border); border-radius: 8px; outline: none; }
.search-wrap input:focus { border-color: var(--accent); }
.count { color: var(--text3); font-size: 12px; }

/* ── tables ── */
.tbl { width: 100%; border-collapse: collapse; font-size: 12.5px; }
.tbl th { text-align: left; padding: 8px 12px; color: var(--text3); font-weight: 550; font-size: 11px;
  text-transform: uppercase; letter-spacing: .4px; border-bottom: 1px solid var(--border); white-space: nowrap; }
.tbl td { padding: 8px 12px; border-bottom: 1px solid var(--border); vertical-align: top; }
.tbl tr:last-child td { border-bottom: none; }
.tbl.clickable tbody tr { cursor: pointer; }
.tbl.clickable tbody tr:hover { background: var(--surface2); }
.tbl tbody tr.is-sel { background: var(--surface3); }
.tbl .mono { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 11.5px; color: var(--text2); }
.tbl .dim { color: var(--text3); }

/* ── badges / chips ── */
.badge { display: inline-block; padding: 2px 8px; border-radius: 999px; font-size: 11px;
  border: 1px solid var(--border2); color: var(--text2); white-space: nowrap; }
.badge.ok { color: var(--ok); border-color: rgba(18,183,106,.4); background: rgba(18,183,106,.08); }
.badge.warn { color: var(--warn); border-color: rgba(247,144,9,.4); background: rgba(247,144,9,.08); }
.badge.danger { color: var(--danger); border-color: rgba(240,68,56,.4); background: rgba(240,68,56,.08); }
.badge.cloud { color: var(--cloud); border-color: rgba(34,211,238,.4); background: rgba(34,211,238,.08); }

/* ── customers: list + detail split ── */
.split { display: grid; grid-template-columns: minmax(0, 1fr); gap: 14px; align-items: start; }
.split:has(.detail:not([hidden])) { grid-template-columns: minmax(0, 1fr) minmax(340px, 420px); }
#custTable { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; }
.detail { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 14px; position: sticky; top: 0; display: flex; flex-direction: column; gap: 12px; }
.detail h2 { margin: 0; font-size: 15px; }
.detail .sub { color: var(--text3); font-size: 11.5px; word-break: break-all; }
.detail h3 { margin: 6px 0 0; font-size: 11px; color: var(--text3); text-transform: uppercase; letter-spacing: .5px; }
.detail .row { display: flex; align-items: center; justify-content: space-between; gap: 8px; padding: 6px 0;
  border-bottom: 1px solid var(--border); font-size: 12.5px; }
.detail .row:last-child { border-bottom: none; }
.detail .close { position: absolute; top: 10px; right: 10px; }
.grant { display: flex; gap: 6px; align-items: center; flex-wrap: wrap; }
.grant select { height: 30px; padding: 0 8px; background: var(--surface2); border: 1px solid var(--border); border-radius: 7px; }
.empty { color: var(--text3); padding: 10px 0; font-size: 12px; }

/* ── toast ── */
.toast { position: fixed; bottom: 18px; left: 50%; transform: translateX(-50%); background: var(--surface3);
  border: 1px solid var(--border2); border-radius: 10px; padding: 9px 16px; font-size: 12.5px; z-index: 50;
  box-shadow: 0 6px 24px rgba(0,0,0,.4); }
.toast.err { border-color: var(--danger); color: var(--danger); }

@media (max-width: 900px) {
  .split:has(.detail:not([hidden])) { grid-template-columns: 1fr; }
  .detail { position: static; }
}