* { box-sizing: border-box; }

body {
  font-family: system-ui, sans-serif;
  display: flex;
  justify-content: center;
  padding: 3rem 1rem;
  margin: 0;
  background: #f4f4f5;
  color: #27272a;
}

main { width: 440px; }

h1 { font-size: 1.2rem; font-weight: 600; margin: 0 0 1rem; }

input {
  width: 100%;
  padding: 0.75rem 1rem;
  font-size: 1rem;
  font-family: inherit;
  border: 1px solid #d4d4d8;
  border-radius: 0.6rem;
  background: white;
}

input:focus {
  outline: 2px solid #3b82f6;
  outline-offset: 1px;
  border-color: transparent;
}

#mensaje {
  min-height: 1.2rem;
  margin: 0.75rem 0;
  font-size: 0.85rem;
  color: #71717a;
}

#mensaje.error { color: #dc2626; }

.resultados { list-style: none; padding: 0; margin: 0; }

.tarjeta {
  padding: 0.9rem 1rem;
  margin-bottom: 0.5rem;
  background: white;
  border-radius: 0.6rem;
  border: 1px solid #e4e4e7;
}

.tarjeta .nombre { font-weight: 600; font-size: 0.95rem; }

.tarjeta .email,
.tarjeta .empresa {
  font-size: 0.82rem;
  color: #71717a;
  margin-top: 0.15rem;
}