:root {
  --blue: #2164f0;
  --success: #08734a;
  --control-border: #7689a3;
}

.skip-link {
  position: fixed;
  top: 0;
  left: clamp(1rem, 3vw, 2rem);
  z-index: 10000;
  transform: translateY(-160%);
  padding: 0.8rem 1.1rem;
  color: #fff;
  background: var(--navy);
  border: 2px solid #fff;
  border-radius: 0 0 0.55rem 0.55rem;
  font-size: 0.875rem;
  font-weight: 700;
  line-height: 1.25;
  text-decoration: none;
  box-shadow: 0 8px 24px #071a3540;
  transition: transform 150ms ease;
}

.skip-link:focus,
.skip-link:focus-visible {
  transform: translateY(0);
  outline: 3px solid var(--blue);
  outline-offset: 3px;
  box-shadow: 0 0 0 2px #fff, 0 8px 24px #071a3540;
}

main#contenido-principal:focus {
  outline: none;
}

/* Small secondary numbers retain their visual hierarchy while meeting AA. */
.benefit-grid small {
  color: var(--muted);
}

/* Reuse the accessible success token for every informative check symbol. */
.trust span::before,
.check-list li span {
  color: var(--success);
}

/* Form fields and secondary buttons need a perceivable 3:1 boundary. */
.contact-form-full input:not([type="checkbox"]),
.contact-form-full select,
.contact-form-full textarea,
.button-secondary {
  border-color: var(--control-border);
}

/* A two-tone focus indicator stays visible on light, blue and dark surfaces. */
.button:focus-visible,
a:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible,
.menu-button:focus-visible,
.faq-list summary:focus-visible {
  outline: 3px solid var(--blue);
  outline-offset: 3px;
  box-shadow: 0 0 0 2px #fff;
}

.contact-form-full input:focus,
.contact-form-full select:focus,
.contact-form-full textarea:focus {
  border-color: var(--blue);
  outline: 3px solid var(--blue);
  outline-offset: 2px;
}

/* The submit button remains legible while it is temporarily disabled. */
.contact-form-full .button:disabled {
  color: #fff;
  background: var(--muted);
  border-color: var(--muted);
  opacity: 1;
}

/* Avoid lightening the blue CTA below AA while it is hovered. */
.home-cta-secondary:hover {
  background: #00000014;
}