/* ===== HEADER / NAV ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--c-institucional);
  box-shadow: 0 1px 0 rgba(255,255,255,.08), var(--shadow-sm);
}

.navbar {
  display: flex;
  align-items: center;
  gap: var(--sp-4);
  padding-block: var(--sp-3);
  max-width: var(--max-w);
  margin-inline: auto;
  padding-inline: var(--sp-5);
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  text-decoration: none;
  flex-shrink: 0;
}
.nav-logo {
  display: flex;
  flex-direction: column;
  line-height: 1;
}
.nav-logo-title {
  font-family: var(--ff-display);
  font-size: var(--fs-md);
  font-weight: var(--fw-semi);
  color: #fff;
  letter-spacing: -.01em;
}
.nav-logo-sub {
  font-size: var(--fs-xs);
  color: rgba(255,255,255,.6);
  letter-spacing: .04em;
}

.nav-menu {
  display: none;
  list-style: none;
  padding: 0;
  margin: 0;
  gap: 0;
}

.nav-menu a {
  display: block;
  padding: var(--sp-3) var(--sp-4);
  font-size: var(--fs-sm);
  font-weight: var(--fw-medium);
  color: rgba(255,255,255,.85);
  text-decoration: none;
  border-radius: var(--radius);
  transition: color var(--t-fast), background var(--t-fast);
  white-space: nowrap;
}
.nav-menu a:hover,
.nav-menu a[aria-current="page"] {
  color: #fff;
  background: rgba(255,255,255,.12);
}
.nav-menu a[aria-current="page"] {
  font-weight: var(--fw-semi);
}

.nav-toggle {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--sp-2);
  border-radius: var(--radius);
  margin-left: auto;
  flex-shrink: 0;
}
.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: #fff;
  border-radius: var(--radius-pill);
  transition: transform var(--t-base), opacity var(--t-base);
}
.nav-toggle[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.nav-toggle[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}
.nav-toggle[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Mobile nav open */
.nav-menu.is-open {
  display: flex;
  flex-direction: column;
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: var(--c-institucional);
  padding: var(--sp-4) var(--sp-5) var(--sp-5);
  border-top: 1px solid rgba(255,255,255,.1);
  box-shadow: var(--shadow-lg);
}
.nav-menu.is-open li { border-bottom: 1px solid rgba(255,255,255,.06); }
.nav-menu.is-open li:last-child { border-bottom: none; }

@media (min-width: 900px) {
  .navbar { padding-inline: var(--sp-6); }
  .nav-menu {
    display: flex;
    flex-direction: row;
    align-items: center;
    margin-left: auto;
  }
  .nav-toggle { display: none; }
}

/* ===== FOOTER ===== */
.site-footer {
  background: var(--c-institucional);
  color: rgba(255,255,255,.75);
  padding-block: var(--sp-10);
  margin-top: auto;
}

.footer-grid {
  display: grid;
  gap: var(--sp-8);
}
@media (min-width: 640px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (min-width: 960px) {
  .footer-grid { grid-template-columns: 2fr 1fr 1fr 1fr; }
}

.footer-brand .footer-logo {
  font-family: var(--ff-display);
  font-size: var(--fs-lg);
  font-weight: var(--fw-semi);
  color: #fff;
  text-decoration: none;
  display: inline-block;
  margin-bottom: var(--sp-3);
}
.footer-brand p {
  font-size: var(--fs-sm);
  line-height: var(--lh-snug);
  margin-bottom: var(--sp-4);
}

.footer-col h4 {
  font-family: var(--ff-body);
  font-size: var(--fs-xs);
  font-weight: var(--fw-semi);
  text-transform: uppercase;
  letter-spacing: .08em;
  color: rgba(255,255,255,.5);
  margin-bottom: var(--sp-4);
}
.footer-col ul {
  list-style: none;
  padding: 0;
  margin: 0;
}
.footer-col li { margin-bottom: var(--sp-3); }
.footer-col a {
  font-size: var(--fs-sm);
  color: rgba(255,255,255,.75);
  text-decoration: none;
  transition: color var(--t-fast);
}
.footer-col a:hover { color: #fff; }

.footer-bottom {
  margin-top: var(--sp-8);
  padding-top: var(--sp-6);
  border-top: 1px solid rgba(255,255,255,.1);
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-4);
  justify-content: space-between;
  align-items: center;
}
.footer-bottom p, .footer-bottom a {
  font-size: var(--fs-xs);
  color: rgba(255,255,255,.45);
}
.footer-bottom a:hover { color: rgba(255,255,255,.75); }
.footer-privacy-notice {
  font-size: var(--fs-xs);
  color: rgba(255,255,255,.45);
  display: flex;
  align-items: center;
  gap: var(--sp-2);
}
.footer-privacy-notice::before {
  content: '';
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: var(--radius-pill);
  background: var(--c-oportunidad);
  flex-shrink: 0;
}

/* ===== GRIDS ===== */
.grid-2 {
  display: grid;
  gap: var(--sp-6);
}
.grid-3 {
  display: grid;
  gap: var(--sp-5);
}
.grid-4 {
  display: grid;
  gap: var(--sp-5);
}

@media (min-width: 640px) {
  .grid-2 { grid-template-columns: repeat(2, 1fr); }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 768px) {
  .grid-3 { grid-template-columns: repeat(3, 1fr); }
}
@media (min-width: 960px) {
  .grid-4 { grid-template-columns: repeat(4, 1fr); }
}

/* Span helpers */
@media (min-width: 640px) {
  .span-2 { grid-column: span 2; }
}
@media (min-width: 768px) {
  .span-3 { grid-column: span 3; }
}

/* Prose */
.prose {
  max-width: var(--max-w-prose);
}
.prose h2, .prose h3, .prose h4 {
  margin-top: var(--sp-7);
  margin-bottom: var(--sp-4);
}
.prose h2:first-child { margin-top: 0; }
.prose p { margin-bottom: var(--sp-4); }
.prose ul, .prose ol { margin-bottom: var(--sp-4); }

/* Breadcrumb */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: var(--sp-2);
  font-size: var(--fs-sm);
  color: var(--c-texto-secundario);
  margin-bottom: var(--sp-6);
  flex-wrap: wrap;
}
.breadcrumb a {
  color: var(--c-texto-secundario);
}
.breadcrumb a:hover { color: var(--c-texto); }
.breadcrumb-sep { color: var(--c-borde); }

/* Page hero (interior pages) */
.page-hero {
  background: var(--c-institucional);
  color: #fff;
  padding-block: var(--sp-10) var(--sp-8);
}
.page-hero .eyebrow { color: rgba(255,255,255,.6); }
.page-hero h1 {
  color: #fff;
  margin-bottom: var(--sp-4);
  font-size: var(--fs-2xl);
}
.page-hero .lead { color: rgba(255,255,255,.8); }

@media (min-width: 768px) {
  .page-hero h1 { font-size: var(--fs-3xl); }
}

/* ===== FOOTER LEGAL / AUTORÍA ===== */
.footer-brand-wide p {
  max-width: 62ch;
}

.footer-legal-links a {
  font-weight: var(--fw-medium);
}

.footer-attribution {
  margin-top: var(--sp-8);
  padding: var(--sp-5);
  border: 1px solid rgba(255,255,255,.14);
  border-radius: var(--radius-card);
  background: linear-gradient(135deg, rgba(255,255,255,.08), rgba(255,255,255,.035));
  box-shadow: inset 0 1px 0 rgba(255,255,255,.08);
}
.footer-attribution p {
  font-size: var(--fs-xs);
  color: rgba(255,255,255,.72);
  line-height: var(--lh-snug);
  margin-bottom: var(--sp-3);
}
.footer-attribution p:first-child {
  font-size: var(--fs-sm);
  color: rgba(255,255,255,.9);
}
.footer-attribution p:last-child {
  margin-bottom: 0;
  color: rgba(255,255,255,.58);
}
.footer-attribution strong {
  color: #fff;
}

@media (min-width: 960px) {
  .footer-brand-wide {
    padding-right: var(--sp-6);
  }
}

/* ===== PÁGINA LEGAL / CESIÓN ===== */
.legal-shell {
  display: grid;
  gap: var(--sp-6);
}

.legal-toc {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-3);
  padding: var(--sp-4);
  border: 1px solid var(--c-borde-claro);
  border-radius: var(--radius-card);
  background: var(--c-superficie);
  box-shadow: var(--shadow-xs);
}
.legal-toc a {
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  padding: var(--sp-2) var(--sp-4);
  border-radius: var(--radius-pill);
  background: var(--c-institucional-claro);
  color: var(--c-institucional);
  font-size: var(--fs-sm);
  font-weight: var(--fw-semi);
  text-decoration: none;
}
.legal-toc a:hover,
.legal-toc a:focus-visible {
  background: var(--c-acento-claro);
  color: var(--c-acento-texto);
}

.legal-card {
  background: var(--c-superficie);
  border: 1px solid var(--c-borde-claro);
  border-radius: var(--radius-card);
  padding: clamp(var(--sp-5), 4vw, var(--sp-7));
  box-shadow: var(--shadow-sm);
  scroll-margin-top: 96px;
}
.legal-card h2 {
  margin-bottom: var(--sp-4);
}
.legal-card h3 {
  margin-top: var(--sp-6);
  margin-bottom: var(--sp-3);
  font-size: var(--fs-lg);
}
.legal-card .eyebrow {
  margin-bottom: var(--sp-2);
}
.legal-card ul {
  color: var(--c-texto-secundario);
}

.legal-highlight {
  margin-block: var(--sp-5);
  padding: var(--sp-4) var(--sp-5);
  border-left: 4px solid var(--c-acento);
  border-radius: var(--radius);
  background: var(--c-acento-claro);
  color: var(--c-acento-texto);
  font-size: var(--fs-sm);
}
.legal-highlight strong {
  color: var(--c-acento-texto);
}

.legal-field-list {
  display: grid;
  gap: var(--sp-3);
  padding: 0;
  list-style: none;
}
.legal-field-list li {
  padding: var(--sp-3) var(--sp-4);
  border: 1px solid var(--c-borde-claro);
  border-radius: var(--radius);
  background: var(--c-fondo);
  color: var(--c-texto-secundario);
}
.legal-field-list strong {
  color: var(--c-texto);
}