body {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #0d1b2a 0%, #1a3a5c 60%, #1e5f8e 100%);
  padding: 1rem;
}

.login-wrapper {
  width: 100%;
  max-width: 480px;
}

.login-card {
  background: #fff;
  border-radius: 16px;
  padding: 2.5rem 2rem 2rem;
  box-shadow: 0 20px 60px rgba(0,0,0,0.35);
}

.login-logo {
  width: 90px;
  height: 90px;
  object-fit: contain;
  display: block;
  margin: 0 auto 1rem;
}

.login-title {
  font-size: 1.5rem;
  font-weight: 700;
  color: #0d1b2a;
  text-align: center;
  margin-bottom: 0.25rem;
}

.login-subtitle {
  font-size: 0.9rem;
  color: #6c757d;
  text-align: center;
  margin-bottom: 1.75rem;
}

.login-section-title {
  font-size: 1.1rem;
  font-weight: 600;
  color: #1a3a5c;
  margin-bottom: 1.25rem;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid #e9ecef;
}

.form-label {
  font-size: 0.875rem;
  font-weight: 500;
  color: #374151;
}

.form-control {
  border-radius: 8px;
  border: 1.5px solid #dee2e6;
  padding: 0.65rem 0.9rem;
  font-size: 0.95rem;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.form-control:focus {
  border-color: #1a3a5c;
  box-shadow: 0 0 0 3px rgba(26,58,92,0.15);
}

.btn-entrar {
  background-color: #1a3a5c;
  border: none;
  border-radius: 8px;
  padding: 0.75rem;
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  transition: background-color 0.2s, transform 0.1s;
}

.btn-entrar:hover:not(:disabled) { background-color: #0d1b2a; }
.btn-entrar:active:not(:disabled) { transform: scale(0.99); }
.btn-entrar:disabled { opacity: 0.7; cursor: not-allowed; }

.login-footer {
  margin-top: 1.5rem;
  text-align: center;
  font-size: 0.75rem;
  color: rgba(255,255,255,0.6);
  line-height: 1.6;
}

.alert {
  border-radius: 8px;
  font-size: 0.875rem;
  display: none;
}

.alert.is-visible { display: block; }