* { box-sizing: border-box; }
body {
  font-family: -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  margin: 0; background: #f4f6f9; color: #1f2937;
}
.login-wrap { display: flex; align-items: center; justify-content: center; height: 100vh; }
.login-card { background: #fff; padding: 32px; border-radius: 10px; box-shadow: 0 2px 12px rgba(0,0,0,.08); width: 340px; }
.login-card h1 { font-size: 1.25rem; margin: 0 0 20px; }
.field { margin-bottom: 14px; }
.field label { display: block; font-size: .82rem; font-weight: 600; margin-bottom: 4px; color: #374151; }
.field input, .field textarea, .field select {
  width: 100%; padding: 8px 10px; border: 1px solid #d1d5db; border-radius: 6px; font-size: .9rem;
}
.field textarea { min-height: 90px; font-family: Consolas, monospace; font-size: .82rem; }
.field.checkbox { display: flex; align-items: center; gap: 8px; }
.field.checkbox input { width: auto; }
button, .btn {
  background: #2563eb; color: #fff; border: none; padding: 8px 16px; border-radius: 6px;
  cursor: pointer; font-size: .85rem; font-weight: 600;
}
button.secondary { background: #6b7280; }
button.danger { background: #dc2626; }
button:disabled { opacity: .5; cursor: not-allowed; }
.error { color: #dc2626; font-size: .82rem; margin-top: 8px; }
.success { color: #16a34a; font-size: .82rem; margin-top: 8px; }

.shell { display: flex; height: 100vh; }
.sidebar { width: 230px; background: #111827; color: #e5e7eb; flex-shrink: 0; padding: 16px 0; overflow-y: auto; }
.sidebar h2 { font-size: 1rem; padding: 0 16px 16px; border-bottom: 1px solid #374151; margin: 0 0 8px; }
.sidebar .nav-item {
  display: block; padding: 9px 16px; color: #d1d5db; text-decoration: none; cursor: pointer; font-size: .88rem;
}
.sidebar .nav-item:hover, .sidebar .nav-item.active { background: #1f2937; color: #fff; }
.sidebar .user-info { padding: 12px 16px; font-size: .78rem; color: #9ca3af; border-top: 1px solid #374151; margin-top: 12px; }

.main { flex: 1; overflow-y: auto; padding: 24px 32px; }
.main h1 { font-size: 1.3rem; margin: 0 0 6px; }
.main .sub { color: #6b7280; font-size: .85rem; margin-bottom: 20px; }

table { width: 100%; border-collapse: collapse; background: #fff; border-radius: 8px; overflow: hidden; box-shadow: 0 1px 3px rgba(0,0,0,.06); }
th, td { text-align: left; padding: 10px 14px; font-size: .85rem; border-bottom: 1px solid #eef0f3; }
th { background: #f9fafb; font-weight: 700; color: #374151; }
tr:last-child td { border-bottom: none; }

.card { background: #fff; border-radius: 8px; padding: 20px; box-shadow: 0 1px 3px rgba(0,0,0,.06); margin-bottom: 20px; max-width: 640px; }
.card.assign-panel { max-width: 760px; }
.card h3 { margin-top: 0; font-size: 1rem; }
.row-actions button { margin-right: 6px; padding: 4px 10px; font-size: .78rem; }
.toolbar { display: flex; justify-content: space-between; align-items: center; margin-bottom: 14px; }
.tenant-select { margin-bottom: 18px; }
.tenant-select select { padding: 6px 10px; border-radius: 6px; border: 1px solid #d1d5db; }
.badge { display: inline-block; padding: 2px 8px; border-radius: 999px; font-size: .72rem; font-weight: 700; }
.badge.on { background: #dcfce7; color: #166534; }
.badge.off { background: #f1f5f9; color: #64748b; }