:root {
  --bg: #0f172a;
  --panel: #1e293b;
  --panel-2: #273449;
  --text: #e2e8f0;
  --muted: #94a3b8;
  --accent: #38bdf8;
  --accent-dark: #0284c7;
  --green: #34d399;
  --red: #f87171;
  --amber: #fbbf24;
  --radius: 12px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
}

.hidden { display: none !important; }
.muted { color: var(--muted); }
.small { font-size: 0.85rem; }
.error { color: var(--red); min-height: 1.2em; margin-top: 0.5rem; font-size: 0.9rem; }

/* ---------- Login ---------- */
#login-view {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 1rem;
}
.login-card {
  background: var(--panel);
  border-radius: var(--radius);
  padding: 2rem;
  width: 100%;
  max-width: 380px;
  text-align: center;
  box-shadow: 0 10px 40px rgba(0,0,0,0.4);
}
.login-card h1 { margin-bottom: 0.25rem; }
.login-card form { margin: 1.25rem 0 1rem; display: grid; gap: 0.75rem; }
.login-card .muted.small { margin: 0.75rem 0 0.5rem; }

/* ---------- Header / tabs ---------- */
header {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 1rem 1.5rem;
  background: var(--panel);
  position: sticky;
  top: 0;
  z-index: 10;
}
header h1 { font-size: 1.25rem; }
nav { display: flex; gap: 0.5rem; flex-wrap: wrap; }

.tab-btn {
  background: transparent;
  border: 1px solid transparent;
  color: var(--muted);
  padding: 0.5rem 1rem;
  border-radius: 8px;
  cursor: pointer;
  font-size: 0.95rem;
}
.tab-btn:hover { color: var(--text); }
.tab-btn.active { background: var(--panel-2); color: var(--accent); }

/* ---------- Layout ---------- */
main.tab { padding: 1.5rem; max-width: 1200px; margin: 0 auto; }
.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
}
@media (max-width: 900px) { .two-col { grid-template-columns: 1fr; } }
.two-col.single { grid-template-columns: 1fr; }

.panel {
  background: var(--panel);
  border-radius: var(--radius);
  padding: 1.25rem;
  margin-bottom: 1.5rem;
}
.panel h2 { font-size: 1.05rem; margin-bottom: 1rem; color: var(--accent); }

/* ---------- Forms & buttons ---------- */
input, select {
  width: 100%;
  padding: 0.6rem 0.75rem;
  border-radius: 8px;
  border: 1px solid #334155;
  background: var(--panel-2);
  color: var(--text);
  font-size: 0.95rem;
}
input:focus { outline: 2px solid var(--accent-dark); }
label { display: block; margin-bottom: 0.75rem; font-size: 0.9rem; color: var(--muted); }
label input { margin-top: 0.3rem; }

.btn {
  padding: 0.55rem 1.1rem;
  border-radius: 8px;
  border: 1px solid #334155;
  background: var(--panel-2);
  color: var(--text);
  cursor: pointer;
  font-size: 0.95rem;
}
.btn:hover:not(:disabled) { filter: brightness(1.15); }
.btn:disabled { opacity: 0.45; cursor: not-allowed; }
.btn.primary { background: var(--accent-dark); border-color: var(--accent-dark); color: #fff; }
.btn.ghost { background: transparent; }
.btn.danger { background: transparent; border-color: var(--red); color: var(--red); }
.btn.full { width: 100%; }
.controls { display: flex; gap: 0.6rem; flex-wrap: wrap; margin: 0.75rem 0; }
.controls select, .controls input[type="date"] { width: auto; }
.controls label.inline { display: flex; align-items: center; gap: 0.4rem; margin: 0; }

/* ---------- Video ---------- */
.video-wrap {
  position: relative;
  width: 100%;
  aspect-ratio: 4 / 3;
  background: #000;
  border-radius: var(--radius);
  overflow: hidden;
}
.video-wrap.small { max-width: 360px; }
.video-wrap video, .video-wrap canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.status {
  margin-top: 0.5rem;
  padding: 0.6rem 0.8rem;
  border-radius: 8px;
  background: var(--panel-2);
  font-size: 0.9rem;
  color: var(--muted);
}
.status.ok { color: var(--green); }
.status.warn { color: var(--amber); }
.status.err { color: var(--red); }

.face-preview {
  width: 96px;
  height: 96px;
  object-fit: cover;
  border-radius: 50%;
  border: 2px solid var(--accent);
  margin: 0.5rem 0;
}

/* ---------- Lists ---------- */
.list { display: grid; gap: 0.6rem; }
.list-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  background: var(--panel-2);
  border-radius: 8px;
  padding: 0.6rem 0.8rem;
}
.list-item img {
  width: 44px; height: 44px;
  border-radius: 50%;
  object-fit: cover;
}
.list-item .info { flex: 1; min-width: 0; }
.list-item .info .name { font-weight: 600; }
.list-item .info .sub { font-size: 0.8rem; color: var(--muted); }
.list-item .actions { display: flex; gap: 0.4rem; }
.badge {
  font-size: 0.75rem;
  padding: 0.15rem 0.5rem;
  border-radius: 999px;
  white-space: nowrap;
}
.badge.in { background: rgba(52, 211, 153, 0.15); color: var(--green); }
.badge.out { background: rgba(148, 163, 184, 0.15); color: var(--muted); }
.badge.err { background: rgba(248, 113, 113, 0.15); color: var(--red); }

.checks { display: flex; gap: 0.5rem; flex-wrap: wrap; margin-top: 0.75rem; }

.check-row { display: flex; align-items: center; gap: 0.6rem; cursor: pointer; color: var(--text); }
.check-row input { width: auto; margin: 0; accent-color: var(--accent); }

.conf { color: var(--green); cursor: help; }
.conf.warn { color: var(--amber); font-weight: 600; }

/* Audit snapshots in the attendance log — click to enlarge */
.list-item img.snap {
  width: 56px; height: 42px;
  border-radius: 6px;
  object-fit: cover;
  cursor: zoom-in;
}
.list-item img.snap.zoomed {
  width: 240px; height: 180px;
  cursor: zoom-out;
}

/* ---------- Table ---------- */
.table-wrap { overflow-x: auto; margin-top: 1rem; }
table { width: 100%; border-collapse: collapse; font-size: 0.9rem; }
th, td { padding: 0.6rem 0.75rem; text-align: left; border-bottom: 1px solid #334155; }
th { color: var(--muted); font-weight: 600; white-space: nowrap; }
td.num, th.num { text-align: right; }
tfoot td { font-weight: 700; }

/* ---------- Kiosk mode ---------- */
body.kiosk header { display: none; }
body.kiosk main.tab { max-width: 900px; padding-top: 2rem; }
/* Kiosks show only the camera — no staff names or in/out times. */
body.kiosk #att-today-panel { display: none; }
body.kiosk #tab-attendance .two-col { grid-template-columns: 1fr; }
body.kiosk .kiosk-exit { display: block; }

.kiosk-exit {
  position: fixed;
  bottom: 0.75rem;
  right: 0.75rem;
  z-index: 50;
  background: transparent;
  border: none;
  color: var(--muted);
  opacity: 0.35;
  font-size: 1.2rem;
  cursor: pointer;
  padding: 0.4rem;
}
.kiosk-exit:hover { opacity: 1; }

/* ---------- Modal ---------- */
.modal {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.85);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 90;
  padding: 1rem;
}
.modal-card {
  background: var(--panel);
  border-radius: var(--radius);
  padding: 1.5rem;
  width: 100%;
  max-width: 360px;
  box-shadow: 0 10px 40px rgba(0,0,0,0.5);
}
.modal-card h2 { margin-bottom: 0.5rem; color: var(--accent); font-size: 1.05rem; }
.modal-card form { margin-top: 1rem; display: grid; gap: 0.5rem; }

/* ---------- Loading / toast ---------- */
.loading {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.8);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  z-index: 100;
}
.spinner {
  width: 42px; height: 42px;
  border: 4px solid var(--panel-2);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

.toast {
  position: fixed;
  bottom: 1.5rem;
  left: 50%;
  transform: translateX(-50%);
  background: var(--panel-2);
  color: var(--text);
  padding: 0.75rem 1.25rem;
  border-radius: 999px;
  box-shadow: 0 6px 24px rgba(0,0,0,0.5);
  z-index: 101;
  font-size: 0.95rem;
}

/* ---------- Roles ---------- */
/* Staff accounts see everything but cannot edit/delete: admin-only controls
   are hidden unless the signed-in user has the admin role. */
body:not(.admin) .admin-only { display: none !important; }