:root {
  --bg: #f5f6f8;
  --card: #ffffff;
  --text: #1f2430;
  --muted: #6b7280;
  --border: #e4e7ec;
  --primary: #4f46e5;
  --primary-dark: #4338ca;
  --green: #16a34a;
  --red: #dc2626;
  --amber: #d97706;
  --radius: 10px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 14px;
}

a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }

.topbar {
  background: #fff;
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 10;
}
.topbar-inner {
  max-width: 1180px;
  margin: 0 auto;
  padding: 12px 20px;
  display: flex;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
}
.brand {
  font-weight: 700;
  font-size: 16px;
  color: var(--text) !important;
  text-decoration: none !important;
}
.nav { display: flex; gap: 4px; flex: 1; flex-wrap: wrap; }
.nav a {
  color: var(--muted) !important;
  text-decoration: none !important;
  padding: 8px 12px;
  border-radius: 8px;
  font-weight: 500;
}
.nav a:hover { background: var(--bg); }
.nav a.active { background: #eef2ff; color: var(--primary) !important; }

.user-menu { display: flex; align-items: center; gap: 14px; margin-left: auto; }
.user-name { color: var(--muted); font-size: 13px; }
.role-badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  margin-left: 6px;
}
.role-admin { background: #eef2ff; color: var(--primary); }
.role-staff { background: #f0fdf4; color: var(--green); }
.logout-link { color: var(--muted) !important; font-size: 13px; }

.page { max-width: 1180px; margin: 0 auto; padding: 28px 20px 60px; }

h1 { font-size: 22px; margin: 0 0 4px; }
h2 { font-size: 17px; margin: 0 0 14px; }
.subtitle { color: var(--muted); margin: 0 0 24px; }

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
  margin-bottom: 28px;
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px 20px;
}

.stat-card .stat-label { color: var(--muted); font-size: 13px; margin-bottom: 6px; }
.stat-card .stat-value { font-size: 26px; font-weight: 700; }
.stat-card .stat-sub { color: var(--muted); font-size: 12px; margin-top: 4px; }
.stat-green .stat-value { color: var(--green); }
.stat-red .stat-value { color: var(--red); }
.stat-amber .stat-value { color: var(--amber); }

.section { margin-bottom: 32px; }

table { width: 100%; border-collapse: collapse; font-size: 13.5px; }
th, td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--border); }
th { color: var(--muted); font-weight: 600; font-size: 12px; text-transform: uppercase; letter-spacing: .03em; }
tr:last-child td { border-bottom: none; }
.table-wrap { overflow-x: auto; }

.low-stock { color: var(--red); font-weight: 700; }

.btn {
  display: inline-block;
  padding: 9px 16px;
  border-radius: 8px;
  border: 1px solid transparent;
  background: var(--primary);
  color: #fff !important;
  font-weight: 600;
  font-size: 13.5px;
  cursor: pointer;
  text-decoration: none !important;
}
.btn:hover { background: var(--primary-dark); }
.btn-secondary { background: #fff; color: var(--text) !important; border-color: var(--border); }
.btn-secondary:hover { background: var(--bg); }
.btn-danger { background: #fff; color: var(--red) !important; border-color: #fca5a5; }
.btn-danger:hover { background: #fef2f2; }
.btn-sm { padding: 5px 10px; font-size: 12.5px; }

input[type=text], input[type=number], input[type=password], input[type=date], select, textarea {
  width: 100%;
  padding: 9px 11px;
  border-radius: 8px;
  border: 1px solid var(--border);
  font-size: 13.5px;
  font-family: inherit;
  background: #fff;
  color: var(--text);
}
input:focus, select:focus, textarea:focus { outline: 2px solid #c7d2fe; border-color: var(--primary); }
label { display: block; font-weight: 600; font-size: 12.5px; margin-bottom: 5px; color: #374151; }
.field { margin-bottom: 14px; }
.form-row { display: flex; gap: 12px; flex-wrap: wrap; }
.form-row .field { flex: 1; min-width: 140px; }

.flash { padding: 12px 16px; border-radius: 8px; margin-bottom: 18px; font-size: 13.5px; }
.flash-success { background: #f0fdf4; color: #166534; border: 1px solid #bbf7d0; }
.flash-error { background: #fef2f2; color: #991b1b; border: 1px solid #fecaca; }

.login-wrap {
  max-width: 380px;
  margin: 90px auto;
  padding: 32px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 14px;
}
.login-wrap h1 { text-align: center; margin-bottom: 4px; }
.login-wrap .subtitle { text-align: center; }
.login-wrap .btn { width: 100%; text-align: center; margin-top: 6px; }

.badge-in { color: var(--green); font-weight: 600; }
.badge-out { color: var(--red); font-weight: 600; }

.actions-cell { display: flex; gap: 8px; }

.chart-wrap { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 18px 20px; }

.tag { display: inline-block; background: #f1f5f9; color: #475569; padding: 2px 8px; border-radius: 6px; font-size: 12px; }

.empty-state { color: var(--muted); padding: 30px; text-align: center; }

@media (max-width: 640px) {
  .topbar-inner { gap: 10px; }
  .user-menu { width: 100%; justify-content: space-between; margin-left: 0; }
}