:root {
  --amarillo-dorado: #E2AD0C;
  --blanco-grisaceo: #E0E0E0;
  --negro-profundo: #000000;
}

body {
  background: linear-gradient(135deg, var(--negro-profundo) 0%, #1a1a1a 100%);
  height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: 'Nunito', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
}

.login-container {
  width: 100%;
  max-width: 400px;
  background: #1a1a1a;
  border-radius: 8px;
  box-shadow: 0 10px 25px rgba(226, 173, 12, 0.2);
  overflow: hidden;
  animation: fadeIn 0.6s ease-in-out;
  border: 1px solid rgba(226, 173, 12, 0.3);
}

.login-header {
  color: var(--blanco-grisaceo);
  padding: 1.5rem;
  text-align: center;
}

.login-header h2 {
  color: var(--amarillo-dorado);
  margin-bottom: 0.5rem;
}

.login-body {
  padding: 1.5rem;
}

.form-label {
  color: var(--blanco-grisaceo);
}

.form-control {
  background-color: #2a2a2a;
  border: 1px solid #333;
  color: var(--blanco-grisaceo);
}

.form-control:focus {
  background-color: #2a2a2a;
  border-color: var(--amarillo-dorado);
  box-shadow: 0 0 0 0.25rem rgba(226, 173, 12, 0.25);
  color: var(--blanco-grisaceo);
}

.form-control::placeholder {
  color: #666;
}

.btn-login {
  background: var(--amarillo-dorado);
  border: none;
  color: var(--negro-profundo);
  font-weight: 600;
}

.btn-login:hover {
  background: #c99c0b;
  color: var(--negro-profundo);
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}