:root {
  --bg: #f6f7f9; --surface: #fff; --text: #16181d; --muted: #667085; --border: #e4e7ec;
  --primary: #3b5bdb; --primary-text: #fff; --ok: #12805c; --ok-bg: #e7f6ef; --bad: #b42318; --bad-bg: #fdecea;
  --warn: #9a6700; --warn-bg: #fff4d6; --radius: 10px;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #0f1115; --surface: #171a21; --text: #e8eaed; --muted: #98a2b3; --border: #2a2f3a;
    --primary: #6d8bff; --ok: #4ade80; --ok-bg: #0f2a1d; --bad: #f87171; --bad-bg: #2a1212; --warn: #facc15; --warn-bg: #2a2410; }
}
* { box-sizing: border-box; }
body { margin: 0; font: 15px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; background: var(--bg); color: var(--text); }
a { color: var(--primary); text-decoration: none; } a:hover { text-decoration: underline; }
h1 { font-size: 1.6rem; margin: .2rem 0 1rem; } h2 { font-size: 1.15rem; margin: 2rem 0 .75rem; }
.container { max-width: 1180px; margin: 0 auto; padding: 1.5rem 16px 4rem; }
.topbar { display: flex; flex-wrap: wrap; gap: 1rem; align-items: center; padding: .75rem 16px; background: var(--surface); border-bottom: 1px solid var(--border); }
.brand { font-weight: 700; color: var(--text); } .brand span { color: var(--muted); font-weight: 500; }
.topbar nav { display: flex; gap: .25rem; flex-wrap: wrap; flex: 1; }
.topbar nav a { padding: .35rem .7rem; border-radius: 8px; color: var(--muted); }
.topbar nav a.active, .topbar nav a:hover { background: var(--bg); color: var(--text); text-decoration: none; }
.logout { display: flex; gap: .75rem; align-items: center; }
.muted { color: var(--muted); } .small { font-size: .85rem; } .mono { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; }
.nowrap { white-space: nowrap; } .right { text-align: right; } .wrap { word-break: break-all; display: block; }
.btn { font: inherit; padding: .45rem .9rem; border-radius: 8px; border: 1px solid var(--border); background: var(--surface); color: var(--text); cursor: pointer; }
.btn:hover { border-color: var(--muted); } .btn.primary { background: var(--primary); color: var(--primary-text); border-color: var(--primary); }
.btn.danger { color: var(--bad); border-color: var(--bad); } .btn.ghost { border-color: transparent; background: transparent; }
.btn.wide { width: 100%; margin-top: .75rem; }
input, select { font: inherit; width: 100%; padding: .5rem .65rem; border: 1px solid var(--border); border-radius: 8px; background: var(--surface); color: var(--text); }
label { display: block; margin: .6rem 0; font-size: .9rem; color: var(--muted); } label input, label select { margin-top: .25rem; }
.auth-card { max-width: 420px; margin: 8vh auto; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 1.75rem; }
.flash { padding: .7rem 1rem; border-radius: 8px; margin-bottom: 1rem; } .flash.ok { background: var(--ok-bg); color: var(--ok); } .flash.err { background: var(--bad-bg); color: var(--bad); }
.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: .75rem; }
.stat { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 1rem; display: flex; flex-direction: column; }
.stat .value { font-size: 1.8rem; font-weight: 700; font-variant-numeric: tabular-nums; } .stat .label { color: var(--muted); font-size: .85rem; }
.table-wrap { overflow-x: auto; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); }
table { width: 100%; border-collapse: collapse; } th, td { padding: .6rem .8rem; text-align: left; border-bottom: 1px solid var(--border); vertical-align: middle; }
th { font-size: .8rem; text-transform: uppercase; letter-spacing: .03em; color: var(--muted); } tr:last-child td { border-bottom: 0; }
.pill { display: inline-block; padding: .1rem .55rem; border-radius: 999px; font-size: .8rem; background: var(--bg); border: 1px solid var(--border); }
.pill.ok { background: var(--ok-bg); color: var(--ok); border-color: transparent; } .pill.bad { background: var(--bad-bg); color: var(--bad); border-color: transparent; }
.pill.warn { background: var(--warn-bg); color: var(--warn); border-color: transparent; }
.tag { font-family: ui-monospace, Menlo, monospace; font-size: .78rem; padding: .05rem .4rem; border-radius: 6px; background: var(--bg); border: 1px solid var(--border); }
.search { display: flex; gap: .5rem; margin-bottom: 1rem; max-width: 560px; }
.header-row { display: flex; flex-wrap: wrap; gap: 1rem; justify-content: space-between; align-items: flex-start; }
.actions { display: flex; flex-wrap: wrap; gap: .5rem; align-items: center; }
.chips { display: flex; flex-wrap: wrap; gap: .5rem; }
.chip { font: inherit; padding: .35rem .8rem; border-radius: 999px; border: 1px dashed var(--border); background: var(--surface); color: var(--muted); cursor: pointer; }
.chip.on { border-style: solid; border-color: var(--primary); color: var(--primary); }
.card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 1rem 1.25rem; margin-bottom: 1rem; }
.card h2 { margin-top: 0; }
.grid-form { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0 1rem; } .span2 { grid-column: span 2; }
.pager { display: flex; gap: 1rem; justify-content: center; margin: 1rem 0; }
@media (max-width: 640px) { .grid-form { grid-template-columns: 1fr; } .span2 { grid-column: auto; } .logout .muted { display: none; } }
.qr { display: flex; justify-content: center; margin: .5rem 0; }
.qr svg { width: 240px; height: 240px; background: #fff; padding: 8px; border-radius: 8px; border: 1px solid var(--border); }
.center { text-align: center; }
.steps { padding-left: 1.2rem; margin: 1rem 0 .25rem; }
details { margin: .75rem 0; } summary { cursor: pointer; color: var(--muted); font-size: .9rem; }