:root {
  --bg: #f1f5f9;
  --panel: #ffffff;
  --side: #0f172a;
  --muted: #64748b;
  --primary: #2563eb;
  --green: #059669;
  --red: #dc2626;
}

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

body {
  font-family: "Segoe UI", Tahoma, Arial, sans-serif;
  background: var(--bg);
  color: #0f172a;
}

.hidden { display: none !important; }

#login-gate {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #1e3a8a, #0f172a);
}

.login-card {
  background: #fff;
  border-radius: 12px;
  padding: 32px;
  width: 340px;
  box-shadow: 0 20px 40px rgba(0, 0, 0, .3);
  text-align: center;
}

.login-card h2 { margin-bottom: 6px; color: #1e293b; }
.login-card p { color: var(--muted); font-size: 14px; margin-bottom: 18px; }
.login-card input {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid #cbd5e1;
  border-radius: 8px;
  margin-bottom: 12px;
  direction: ltr;
  text-align: center;
}

#app { display: flex; min-height: 100vh; }

.sidebar {
  width: 220px;
  background: var(--side);
  color: #fff;
  display: flex;
  flex-direction: column;
}

.brand {
  padding: 20px;
  font-size: 20px;
  font-weight: 800;
  border-bottom: 1px solid rgba(255, 255, 255, .08);
}
.brand span { color: #60a5fa; font-size: 12px; display: block; }

.sidebar nav { flex: 1; padding: 12px 0; }
.sidebar nav a {
  display: block;
  padding: 12px 20px;
  color: #cbd5e1;
  text-decoration: none;
  font-size: 14px;
}
.sidebar nav a:hover { background: rgba(255, 255, 255, .06); }
.sidebar nav a.active { background: var(--primary); color: #fff; }

.sidebar-footer { padding: 16px 20px; border-top: 1px solid rgba(255, 255, 255, .08); }
#logout-btn {
  width: 100%;
  background: rgba(255, 255, 255, .08);
  color: #fca5a5;
  border: none;
  padding: 8px;
  border-radius: 8px;
  cursor: pointer;
}

.main { flex: 1; padding: 24px; }
.topbar { margin-bottom: 20px; }
.topbar h1 { font-size: 24px; }

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
  gap: 16px;
}
.card { border-radius: 12px; padding: 20px; color: #fff; }
.card-value { font-size: 30px; font-weight: 800; }
.card-label { font-size: 13px; opacity: .9; margin-top: 4px; }
.card.blue   { background: linear-gradient(135deg, #2563eb, #1e40af); }
.card.green  { background: linear-gradient(135deg, #059669, #065f46); }
.card.teal   { background: linear-gradient(135deg, #0d9488, #115e59); }
.card.purple { background: linear-gradient(135deg, #7c3aed, #5b21b6); }
.card.orange { background: linear-gradient(135deg, #ea580c, #9a3412); }
.card.red    { background: linear-gradient(135deg, #dc2626, #991b1b); }

.toolbar { display: flex; gap: 10px; margin-bottom: 16px; }
.toolbar input {
  flex: 1;
  padding: 10px 12px;
  border: 1px solid #cbd5e1;
  border-radius: 8px;
}

.btn {
  padding: 10px 16px;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  font-size: 14px;
  background: #e2e8f0;
  color: #0f172a;
}
.btn.primary { background: var(--primary); color: #fff; }
.btn.danger { background: var(--red); color: #fff; }
.btn.small { padding: 6px 12px; font-size: 12px; }
.btn.block { width: 100%; }
.btn:disabled { opacity: .5; cursor: not-allowed; }

.table-wrap {
  background: #fff;
  border-radius: 12px;
  overflow: auto;
  box-shadow: 0 1px 3px rgba(0, 0, 0, .06);
}
table { width: 100%; border-collapse: collapse; font-size: 13px; }
th, td { padding: 10px 12px; text-align: right; border-bottom: 1px solid #f1f5f9; white-space: nowrap; }
th { background: #f8fafc; color: #475569; font-size: 12px; }
td.empty { color: #94a3b8; text-align: center; padding: 20px; }

.badge { padding: 3px 8px; border-radius: 20px; font-size: 11px; }
.badge.green { background: #dcfce7; color: #166534; }
.badge.red { background: #fee2e2; color: #991b1b; }

.pagination {
  display: flex;
  align-items: center;
  gap: 12px;
  justify-content: center;
  margin-top: 16px;
  color: #475569;
}

.placeholder { padding: 40px; text-align: center; color: #94a3b8; }
.empty { padding: 30px; text-align: center; color: #94a3b8; }

.panel {
  background: #fff;
  border-radius: 12px;
  padding: 24px;
  max-width: 520px;
  box-shadow: 0 1px 3px rgba(0, 0, 0, .06);
}
.panel h3 { margin-bottom: 6px; }
.muted { color: var(--muted); font-size: 13px; margin-bottom: 16px; }

.form label { display: block; font-size: 13px; color: #334155; margin: 12px 0 4px; }
.form input {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid #cbd5e1;
  border-radius: 8px;
}
.req { color: var(--red); }
.form .btn { margin-top: 16px; }

.toggle-row { display: flex; gap: 12px; margin-bottom: 16px; }
.toggle-option {
  flex: 1;
  text-align: center;
  padding: 14px;
  border: 2px solid #cbd5e1;
  border-radius: 10px;
  cursor: pointer;
}
.toggle-option.selected { border-color: var(--primary); background: #eff6ff; }
.toggle-option input { display: none; }

.success { color: #166534; margin-top: 10px; }
.error { color: #991b1b; margin-top: 10px; }
.error-box { padding: 30px; text-align: center; color: #991b1b; }