* { box-sizing: border-box; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: #f4f5f7;
  color: #1a1a1a;
  margin: 0;
}
header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: #1a1a2e;
  color: white;
  padding: 1rem 2rem;
}
header h1 { margin: 0; font-size: 1.3rem; }
main { max-width: 1100px; margin: 2rem auto; padding: 0 1rem; }
.card {
  background: white;
  border-radius: 8px;
  padding: 1.5rem;
  margin-bottom: 1.5rem;
  box-shadow: 0 1px 3px rgba(0,0,0,0.1);
}
.card h2 { margin-top: 0; }
.grid4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1rem; }
.stat-label { font-size: 0.8rem; color: #666; }
.stat-value { font-size: 1.1rem; font-weight: 600; margin-top: 0.25rem; }
table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 0.6rem; border-bottom: 1px solid #eee; }
.badge {
  display: inline-block;
  padding: 0.2rem 0.6rem;
  border-radius: 12px;
  font-size: 0.8rem;
  font-weight: 600;
}
.badge-green { background: #d4edda; color: #155724; }
.badge-yellow { background: #fff3cd; color: #856404; }
.badge-red { background: #f8d7da; color: #721c24; }
.badge-gray { background: #e2e3e5; color: #383d41; }
.btn-small, .btn-primary, .btn-danger, .btn-ghost {
  border: none;
  border-radius: 6px;
  padding: 0.4rem 0.8rem;
  cursor: pointer;
  font-size: 0.85rem;
}
.btn-small { background: #e9ecef; }
.btn-primary { background: #2563eb; color: white; padding: 0.6rem 1rem; }
.btn-danger { background: #dc2626; color: white; }
.btn-danger:disabled { background: #f3a5a5; cursor: not-allowed; }
.btn-ghost { background: transparent; color: white; border: 1px solid rgba(255,255,255,0.4); }
.actions { display: flex; gap: 0.4rem; }
.add-client-form { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-top: 1rem; }
.add-client-form input, .add-client-form select {
  padding: 0.5rem;
  border: 1px solid #ccc;
  border-radius: 6px;
}
.login-body {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100vh;
  background: #1a1a2e;
}
.login-box {
  background: white;
  padding: 2rem;
  border-radius: 8px;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  width: 280px;
}
.login-box input { padding: 0.6rem; border: 1px solid #ccc; border-radius: 6px; }
.error { color: #dc2626; font-size: 0.9rem; }
.modal-overlay {
  position: fixed; inset: 0; background: rgba(0,0,0,0.5);
  display: flex; align-items: center; justify-content: center;
}
.modal {
  background: white; padding: 1.5rem; border-radius: 8px; width: 480px; max-width: 90vw;
}
.modal ul { font-size: 0.9rem; }