:root {
  --navy: #1f3a5f;
  --navy-700: #16293f;
  --teal: #2f9e7d;
  --teal-600: #268266;
  --amber: #c8860a;
  --red: #c0392b;
  --ink: #1c2430;
  --muted: #5c6b7a;
  --line: #e2e8ee;
  --bg: #f4f6f9;
  --card: #ffffff;
  --radius: 12px;
  --shadow: 0 1px 3px rgba(16,32,55,.08), 0 6px 18px rgba(16,32,55,.06);
  font-synthesis: none;
}
/* Dark theme (explicit toggle) — redefines the tokens + a few hardcoded surfaces */
:root[data-theme="dark"] {
  --ink: #e7edf3;
  --muted: #97a6b6;
  --line: #29333f;
  --bg: #0e1621;
  --card: #17212e;
  --shadow: 0 1px 3px rgba(0,0,0,.4), 0 6px 18px rgba(0,0,0,.3);
}
:root[data-theme="dark"] input,
:root[data-theme="dark"] select,
:root[data-theme="dark"] textarea { background: #0e1621; color: var(--ink); border-color: var(--line); }
:root[data-theme="dark"] th { background: #1d2733; color: var(--muted); }
:root[data-theme="dark"] .side-nav a { color: var(--ink); }
:root[data-theme="dark"] .side-nav a:hover { background: #1d2733; }
:root[data-theme="dark"] .side-nav a.active { background: #17303f; color: #cfe0f2; }
:root[data-theme="dark"] .toolbar input, :root[data-theme="dark"] .toolbar select { background: #0e1621; }
:root[data-theme="dark"] .stat .num { color: #cfe0f2; }
:root[data-theme="dark"] .notice { background: #17303f; border-color: #244b6b; color: #cfe0f2; }
:root[data-theme="dark"] .code-chip { background: #17303f; border-color: #244b6b; color: #cfe0f2; }
:root[data-theme="dark"] .bar-track { background: #232e3a; }
:root[data-theme="dark"] .heat-cell { }
:root[data-theme="dark"] .folder > summary { background: #1d2733; }
:root[data-theme="dark"] .badge.muted { background:#26303c; color:var(--muted); }
:root[data-theme="dark"] .btn.outline, :root[data-theme="dark"] .ghost-dark { background:#17212e; color:#cfe0f2; }
.theme-toggle { background:rgba(255,255,255,.15); color:#fff; border:1px solid rgba(255,255,255,.3);
  border-radius:8px; width:30px; height:30px; cursor:pointer; font-size:1rem; line-height:1; }
.theme-toggle:hover { background:rgba(255,255,255,.25); }

* { box-sizing: border-box; }
body {
  margin: 0; background: var(--bg); color: var(--ink);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.5;
}
a { color: var(--navy); text-decoration: none; }
a:hover { text-decoration: underline; }

/* Accessibility: skip link (visible on keyboard focus) */
.skip-link { position:absolute; left:-999px; top:0; z-index:10000; background:var(--navy);
  color:#fff !important; padding:.6rem 1rem; border-radius:0 0 8px 0; }
.skip-link:focus { left:0; }
#main-content:focus { outline:none; }
.sr-only { position:absolute; width:1px; height:1px; padding:0; margin:-1px; overflow:hidden;
  clip:rect(0,0,0,0); white-space:nowrap; border:0; }

/* Top bar */
.topbar {
  display: flex; align-items: center; justify-content: space-between;
  background: var(--navy); color: #fff; padding: .7rem 1.25rem;
}
.brand { color:#fff; font-weight:700; font-size:1.05rem; display:flex; align-items:center; gap:.5rem; }
.brand:hover { text-decoration:none; }
.brand-mark {
  background: var(--teal); color:#fff; width:28px; height:28px; border-radius:7px;
  display:inline-flex; align-items:center; justify-content:center; font-size:.8rem; font-weight:800;
}
.topnav { display:flex; align-items:center; gap:1.1rem; }
.topnav a { color:#dbe6f2; }
.topnav .who { color:#9fb4cc; font-size:.9rem; }
.btn-ghost { border:1px solid rgba(255,255,255,.35); padding:.35rem .7rem; border-radius:8px; color:#fff !important; }

.container { max-width: 1120px; margin: 1.5rem auto; padding: 0 1.25rem; }
.footer { text-align:center; color:var(--muted); font-size:.8rem; padding:2rem 1rem; }

/* Cards + grid */
.card { background:var(--card); border:1px solid var(--line); border-radius:var(--radius); box-shadow:var(--shadow); padding:1.25rem; }
.grid { display:grid; gap:1rem; }
.grid.cols-5 { grid-template-columns: repeat(5, 1fr); }
.grid.cols-3 { grid-template-columns: repeat(3, 1fr); }
.grid.cols-2 { grid-template-columns: repeat(2, 1fr); }
@media (max-width: 820px){ .grid.cols-5,.grid.cols-3,.grid.cols-2{ grid-template-columns:1fr 1fr; } }
@media (max-width: 520px){ .grid.cols-5,.grid.cols-3,.grid.cols-2{ grid-template-columns:1fr; } }

/* Stat tiles */
.stat { text-align:left; }
a.stat { text-decoration:none; color:inherit; transition:box-shadow .12s ease; display:block; }
a.stat:hover { box-shadow:0 4px 16px rgba(0,0,0,.1); }
.stat .num { font-size:2rem; font-weight:800; color:var(--navy); line-height:1; }
.stat .lbl { color:var(--muted); font-size:.82rem; margin-top:.35rem; text-transform:uppercase; letter-spacing:.03em; }
.stat.alert .num { color:var(--red); }
.stat.warn .num { color:var(--amber); }

h1 { font-size:1.5rem; margin:.2rem 0 1rem; }
h2 { font-size:1.15rem; margin:1.5rem 0 .75rem; }
.sub { color:var(--muted); margin-top:-.4rem; }

/* Table */
table { width:100%; border-collapse:collapse; background:var(--card); border-radius:var(--radius); overflow:hidden; }
th, td { text-align:left; padding:.65rem .8rem; border-bottom:1px solid var(--line); font-size:.92rem; }
th { background:#eef2f7; color:var(--muted); font-weight:600; text-transform:uppercase; font-size:.72rem; letter-spacing:.04em; }
tr:last-child td { border-bottom:none; }

/* Badges (color + text + icon; never color alone) */
.badge { display:inline-flex; align-items:center; gap:.3rem; padding:.15rem .55rem; border-radius:999px; font-size:.75rem; font-weight:600; border:1px solid transparent; }
.badge::before { content:"●"; font-size:.6rem; }
.badge.ok { background:#e7f6ef; color:var(--teal-600); }
.badge.warn { background:#fdf3e0; color:var(--amber); }
.badge.danger { background:#fbe9e7; color:var(--red); }
.badge.info { background:#e9f0f8; color:var(--navy); }
.badge.muted { background:#eef1f5; color:var(--muted); }

/* Forms */
label { display:block; font-weight:600; font-size:.85rem; margin:.75rem 0 .3rem; }
input, select, textarea {
  width:100%; padding:.6rem .7rem; border:1px solid var(--line); border-radius:9px;
  font-size:1rem; background:#fff; color:var(--ink);
}
input:focus, select:focus, textarea:focus { outline:2px solid var(--teal); border-color:var(--teal); }
.btn {
  display:inline-flex; align-items:center; justify-content:center; gap:.4rem;
  background:var(--navy); color:#fff; border:none; padding:.65rem 1.1rem; border-radius:9px;
  font-size:1rem; font-weight:600; cursor:pointer;
}
.btn:hover { background:var(--navy-700); text-decoration:none; }
.btn.teal { background:var(--teal); } .btn.teal:hover { background:var(--teal-600); }
.btn.block { width:100%; }
.btn.lg { padding:1rem 1.4rem; font-size:1.15rem; }

.flashes { margin-bottom:1rem; display:grid; gap:.5rem; }
.flash { padding:.7rem .9rem; border-radius:9px; border:1px solid var(--line); }
.flash-danger { background:#fbe9e7; border-color:#f0c3bd; color:#8a231a; }
.flash-success { background:#e7f6ef; border-color:#bfe6d3; color:#1c6b50; }
.flash-warning { background:#fdf3e0; border-color:#f0dcae; color:#8a5f08; }
.flash-info { background:#e9f0f8; border-color:#c7d8ec; color:#22456e; }

/* Auth / centered */
.centered { min-height:70vh; display:flex; align-items:center; justify-content:center; }
.auth-card { width:100%; max-width:400px; }
.notice { background:#eef4fb; border:1px solid #cfe0f2; color:#2a4d74; padding:.7rem .8rem; border-radius:9px; font-size:.85rem; }

/* Kiosk */
.kiosk { background:linear-gradient(160deg,#1f3a5f,#16293f); min-height:100vh; color:#fff; }
.kiosk .container { max-width:640px; }
.kiosk-card { background:#fff; color:var(--ink); border-radius:20px; padding:2rem; box-shadow:0 20px 60px rgba(0,0,0,.35); }
.kiosk-choice { display:grid; gap:1rem; margin-top:1.5rem; }
.kiosk-choice .btn { padding:1.4rem; font-size:1.3rem; border-radius:16px; }
.kiosk h1 { font-size:2rem; }
.pill-list { display:flex; flex-wrap:wrap; gap:.4rem; }

/* Prominent kiosk language picker (welcome screen) */
.lang-picker { display:flex; flex-direction:column; gap:.5rem; padding:.9rem 1rem;
  background:#eef4fb; border:1px solid #cfe0f2; border-radius:12px; margin-bottom:1.4rem; }
.lang-picker-label { font-weight:700; color:var(--navy); font-size:.95rem; }
.lang-picker-btns { display:flex; gap:.5rem; flex-wrap:wrap; }
.lang-btn { flex:1 1 auto; min-width:110px; text-align:center; padding:.85rem 1rem;
  border-radius:10px; background:#fff; border:2px solid #cfe0f2; color:var(--navy);
  font-size:1.15rem; font-weight:700; }
.lang-btn:hover { text-decoration:none; border-color:var(--teal); }
.lang-btn.on { background:var(--teal); border-color:var(--teal); color:#fff; }
body.a11y-contrast .lang-picker { background:#fff; border-color:#000; }
body.a11y-contrast .lang-btn { border-color:#000; color:#000; }
body.a11y-contrast .lang-btn.on { background:#006b45; color:#fff; }

/* Kiosk offline overlay */
.offline-overlay { position:fixed; inset:0; background:rgba(15,22,32,.96); color:#fff;
  z-index:9999; align-items:center; justify-content:center; text-align:center; padding:2rem; }
.offline-box { max-width:420px; }
.offline-box h1 { font-size:2rem; }
.offline-box p { color:#c7d6e8; font-size:1.1rem; }

/* Kiosk language + accessibility controls */
.kiosk-tools { display:flex; justify-content:center; gap:1rem; flex-wrap:wrap; margin-top:1.2rem; }
.kt-group { display:flex; gap:.4rem; }
.kt-btn { display:inline-flex; align-items:center; padding:.45rem .8rem; border-radius:999px;
  background:rgba(255,255,255,.12); color:#eaf1fb !important; font-size:.9rem; font-weight:600;
  border:1px solid rgba(255,255,255,.25); }
.kt-btn:hover { background:rgba(255,255,255,.2); text-decoration:none; }
.kt-btn.on { background:var(--teal); border-color:var(--teal); color:#fff !important; }

/* Accessibility: larger text + high contrast (kiosk) */
body.a11y-large .kiosk-card { font-size:1.18rem; }
body.a11y-large .kiosk-card h1 { font-size:2.2rem; }
body.a11y-large .kiosk-choice .btn, body.a11y-large .btn.lg { font-size:1.5rem; padding:1.5rem; }
body.a11y-large input, body.a11y-large select, body.a11y-large textarea { font-size:1.2rem; }
body.a11y-contrast.kiosk { background:#000; }
body.a11y-contrast .kiosk-card { background:#fff; color:#000; border:2px solid #000; }
body.a11y-contrast .kiosk-card .sub, body.a11y-contrast .kiosk-card .muted-note { color:#111; }
body.a11y-contrast .btn { background:#000; color:#fff; border:2px solid #000; }
body.a11y-contrast .btn.teal { background:#006b45; }
body.a11y-contrast .kt-btn { background:#000; border-color:#fff; }
/* Visible keyboard focus everywhere */
a:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible {
  outline:3px solid var(--teal); outline-offset:2px;
}

/* Portal layout with sidebar */
.portal-wrap { display:grid; grid-template-columns:210px 1fr; gap:1.5rem; align-items:start; }
.side { position:sticky; top:1rem; }
.side-nav { background:var(--card); border:1px solid var(--line); border-radius:var(--radius); overflow:hidden; box-shadow:var(--shadow); }
.side-nav a { display:flex; align-items:center; justify-content:space-between; padding:.6rem .9rem; color:var(--ink); font-size:.92rem; font-weight:500; border-left:3px solid transparent; }
.side-nav a:hover { background:#f2f5f9; text-decoration:none; }
.side-nav a.active { background:#eef4fb; border-left-color:var(--teal); color:var(--navy); font-weight:700; }
.side-nav .grp { padding:.5rem .9rem .25rem; font-size:.68rem; text-transform:uppercase; letter-spacing:.06em; color:var(--muted); }
.side-badge { background:var(--amber); color:#fff; border-radius:999px; font-size:.7rem; padding:.05rem .45rem; font-weight:700; }
@media (max-width: 820px){
  .portal-wrap { grid-template-columns:1fr; }
  .side { position:static; }
  .side-nav { display:flex; flex-wrap:wrap; }
  .side-nav a { border-left:none; border-bottom:3px solid transparent; }
  .side-nav a.active { border-left:none; border-bottom-color:var(--teal); }
  .side-nav .grp { display:none; }
}

/* Toolbar / filters */
.toolbar { display:flex; gap:.6rem; flex-wrap:wrap; align-items:center; margin:1rem 0; }
.toolbar input, .toolbar select { width:auto; min-width:140px; }
.toolbar .spacer { flex:1; }
.page-head { display:flex; align-items:center; justify-content:space-between; gap:1rem; flex-wrap:wrap; }

/* Detail layout */
.detail-grid { display:grid; grid-template-columns:2fr 1fr; gap:1.25rem; align-items:start; }
@media (max-width: 760px){ .detail-grid { grid-template-columns:1fr; } }
.kv { display:grid; grid-template-columns:150px 1fr; gap:.35rem .8rem; font-size:.92rem; }
.kv dt { color:var(--muted); }
.kv dd { margin:0; }
.section-title { font-size:.72rem; text-transform:uppercase; letter-spacing:.05em; color:var(--muted); margin:0 0 .5rem; }
.inline-form { display:flex; gap:.5rem; align-items:flex-end; flex-wrap:wrap; }
.btn.sm { padding:.4rem .7rem; font-size:.85rem; }
.btn.red { background:var(--red); } .btn.red:hover { background:#a03225; }
.btn.outline { background:#fff; color:var(--navy); border:1px solid var(--line); }
.muted-note { color:var(--muted); font-size:.85rem; }
.code-chip { font-family:ui-monospace,SFMono-Regular,Menlo,monospace; background:#eef4fb; border:1px solid #cfe0f2; border-radius:8px; padding:.15rem .5rem; font-weight:700; letter-spacing:.15em; }
.avatar { width:44px; height:44px; border-radius:50%; background:var(--navy); color:#fff; display:inline-flex; align-items:center; justify-content:center; font-weight:700; }
.avatar.sm { width:30px; height:30px; font-size:.8rem; }
.avatar-img { width:44px; height:44px; border-radius:50%; object-fit:cover; border:1px solid var(--line); background:#fff; }
.avatar-img.sm { width:30px; height:30px; }
.empty { text-align:center; color:var(--muted); padding:2rem; }

/* Simple CSS charts (no external libs; CSP-safe) */
.bars { display:grid; gap:.45rem; }
.bar-row { display:grid; grid-template-columns:130px 1fr 42px; align-items:center; gap:.6rem; font-size:.85rem; }
.bar-row .lbl2 { color:var(--muted); white-space:nowrap; overflow:hidden; text-overflow:ellipsis; }
.bar-track { background:#eef2f7; border-radius:6px; height:16px; overflow:hidden; }
.bar-fill { height:100%; background:var(--teal); border-radius:6px; }
.bar-fill.navy { background:var(--navy); }
.bar-row .val { text-align:right; font-variant-numeric:tabular-nums; color:var(--ink); font-weight:600; }
.spark { display:flex; align-items:flex-end; gap:3px; height:70px; }
.spark .col { flex:1; background:var(--navy); border-radius:3px 3px 0 0; min-height:2px; }
.folder { border:1px solid var(--line); border-radius:10px; margin-bottom:.8rem; overflow:hidden; }
.folder > summary { cursor:pointer; padding:.6rem .9rem; background:#eef2f7; font-weight:700; }
.folder .month { padding:.5rem .9rem; border-top:1px solid var(--line); }

/* Live occupancy board */
.board-grid { display:grid; grid-template-columns:repeat(auto-fill, minmax(220px, 1fr)); gap:1rem; }
.board-tile { display:flex; gap:.8rem; align-items:center; background:var(--card); border:1px solid var(--line);
  border-radius:14px; padding:1rem; box-shadow:var(--shadow); }
.board-tile.overdue { border-color:var(--red); box-shadow:0 0 0 2px rgba(192,57,43,.15); }
.board-photo { width:64px; height:64px; border-radius:50%; object-fit:cover; border:1px solid var(--line); flex-shrink:0; }
.board-photo.initials { display:flex; align-items:center; justify-content:center; background:var(--navy); color:#fff; font-size:1.6rem; font-weight:700; }
.board-name { font-weight:700; font-size:1.1rem; color:var(--ink); }
.board-meta { color:var(--muted); font-size:.86rem; }
.board-elapsed { margin-top:.3rem; font-size:.86rem; color:var(--navy); font-weight:600; }

/* Occupancy heatmap */
.heatmap { overflow-x:auto; }
.heat-hours, .heat-row { display:grid; grid-template-columns:42px repeat(24, 1fr); gap:2px; align-items:center; }
.heat-hours { margin-bottom:2px; }
.heat-row { margin-bottom:2px; }
.heat-daylabel { font-size:.72rem; color:var(--muted); }
.heat-hourlabel { grid-column:span 3; font-size:.66rem; color:var(--muted); }
.heat-cell { height:16px; border-radius:3px; }

/* Evacuation roster + print */
.roster-table td, .roster-table th { padding:.5rem .7rem; }
.roster-check { font-size:1.2rem; text-align:center; }
@media print {
  .topbar, .footer, .no-print, .flashes { display:none !important; }
  .print-head { display:block !important; }
  body { background:#fff; }
  .container { margin:0; max-width:none; }
  table { box-shadow:none; }
  h2 { page-break-after:avoid; }
  tr { page-break-inside:avoid; }
}

/* Visitor badge */
.badge-card { width:340px; margin:1rem auto; border:1px solid var(--line); border-radius:14px;
  overflow:hidden; box-shadow:var(--shadow); background:#fff; }
.badge-top { background:var(--brand, var(--navy)); color:#fff; display:flex; justify-content:space-between;
  align-items:center; padding:.7rem 1rem; font-weight:700; }
.badge-label { background:rgba(255,255,255,.2); border-radius:6px; padding:.1rem .5rem; font-size:.8rem; letter-spacing:.1em; }
.badge-body { padding:1.4rem; text-align:center; }
.badge-photo { width:120px; height:120px; border-radius:50%; object-fit:cover; border:2px solid var(--line); }
.badge-photo.initials { display:inline-flex; align-items:center; justify-content:center; background:var(--navy); color:#fff; font-size:3rem; font-weight:700; }
.badge-name { font-size:1.5rem; font-weight:800; margin-top:.7rem; color:var(--ink); }
.badge-cat { display:inline-block; background:#eef2f7; border-radius:999px; padding:.15rem .7rem; font-size:.85rem; color:var(--muted); margin-top:.3rem; }
.badge-kv { display:grid; grid-template-columns:auto 1fr; gap:.2rem .6rem; margin:1rem auto 0; max-width:230px; text-align:left; font-size:.9rem; }
.badge-kv dt { color:var(--muted); } .badge-kv dd { margin:0; font-weight:600; }
.badge-qr { display:flex; flex-direction:column; align-items:center; gap:.2rem; margin-top:1rem; }
.badge-qr span { font-size:.72rem; color:var(--muted); }
.badge-foot { background:#f5f7fa; color:var(--muted); font-size:.75rem; text-align:center; padding:.6rem; border-top:1px solid var(--line); }
/* KPI deltas (executive summary) */
.delta { font-size:.8rem; font-weight:600; margin-top:.3rem; }
.delta.up { color:var(--teal); }
.delta.down { color:var(--red); }
.delta.flat { color:var(--muted); }

/* Emergency banner */
.emergency-banner { background:var(--red); color:#fff; text-align:center; padding:.6rem 1rem;
  font-weight:700; position:sticky; top:0; z-index:50; }
.emergency-banner a { color:#fff; text-decoration:underline; }

/* Movement trail */
.trail { margin:.4rem 0 0; padding-left:1.1rem; }
.trail li { margin:.2rem 0; }

/* QR checkpoint posters */
.zone-posters { display:grid; grid-template-columns:repeat(auto-fill, minmax(300px, 1fr)); gap:1rem; margin-top:1rem; }
.zone-poster { border:1px solid var(--line); border-radius:14px; overflow:hidden; background:#fff;
  text-align:center; box-shadow:var(--shadow); page-break-inside:avoid; break-inside:avoid; }
.zone-poster .zp-top { background:var(--brand, var(--navy)); color:#fff; font-weight:700; padding:.6rem; }
.zone-poster .zp-name { font-size:1.8rem; font-weight:800; margin:1rem .5rem .2rem; color:var(--ink); }
.zone-poster .zp-desc { color:var(--muted); font-size:.9rem; margin-bottom:.5rem; }
.zone-poster .zp-qr { width:80%; max-width:240px; height:auto; }
.zone-poster .zp-instr { background:#f5f7fa; color:var(--muted); font-size:.85rem; padding:.7rem; border-top:1px solid var(--line); }
@media print {
  .zone-posters { grid-template-columns:repeat(2, 1fr); }
}

/* Batch badge sheet */
.badges-sheet { display:grid; grid-template-columns:repeat(auto-fill, minmax(300px, 1fr)); gap:1rem; margin-top:1rem; }
.badges-sheet .badge-card { width:auto; margin:0; }
@media print {
  .badge-card { box-shadow:none; margin:0; }
  .badges-sheet { grid-template-columns:repeat(2, 1fr); gap:.4rem; }
  .badges-sheet .badge-card { page-break-inside:avoid; break-inside:avoid; }
}