/* ==========================================================================
   CEICOTOL — Estructura y layout (encabezado, navegación, secciones, pie)
   ========================================================================== */

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  color: var(--color-text);
  background-color: var(--color-bg);
  line-height: var(--lh-base);
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  color: var(--color-text);
  line-height: var(--lh-tight);
  letter-spacing: -0.01em;
}

a {
  color: var(--color-brand-dark);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.15em;
}

a:hover {
  color: var(--color-brand);
}

:focus-visible {
  outline: 3px solid var(--color-focus);
  outline-offset: 2px;
  border-radius: 4px;
}

/* Saltar al contenido (accesibilidad) */
.skip-link {
  position: absolute;
  top: -100px;
  left: 1rem;
  z-index: 2000;
  padding: var(--space-2) var(--space-4);
  background: var(--color-surface-dark);
  color: var(--color-text-inverse);
  border-radius: var(--radius-sm);
  transition: top var(--transition-fast);
}

.skip-link:focus {
  top: 0.75rem;
  color: var(--color-text-inverse);
}

/* Secciones con desplazamiento compensado por el encabezado fijo */
main section[id],
main [id="contenido"] {
  scroll-margin-top: calc(var(--header-height) + var(--space-4));
}

.container,
.container-fluid,
.container-lg,
.container-md,
.container-sm,
.container-xl,
.container-xxl {
  max-width: var(--container-max);
}

/* ============================ Encabezado ============================ */

.site-header {
  position: sticky;
  top: 0;
  z-index: 1030;
  background: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  min-height: var(--header-height);
  padding-block: var(--space-2);
}

.site-brand {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  text-decoration: none;
  color: var(--color-text);
  min-width: 0;
}

.site-brand:hover {
  color: var(--color-text);
}

.site-brand__mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  flex: 0 0 auto;
  background: var(--color-brand-soft);
  border: 1px solid var(--color-brand-border);
  border-radius: 50%;
}

.site-brand__mark img {
  max-height: 30px;
  width: auto;
}

.site-brand__text {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
  min-width: 0;
  max-width: min(440px, 46vw);
}

.site-brand__name {
  font-weight: 700;
  font-size: var(--fs-lg);
  letter-spacing: 0.01em;
}

.site-brand__sub {
  font-size: var(--fs-xs);
  color: var(--color-text-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.site-nav {
  align-items: center;
}

.site-nav__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-1);
  list-style: none;
  margin: 0;
  padding: 0;
}

.site-nav__link {
  display: inline-flex;
  align-items: center;
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-sm);
  color: var(--color-text);
  font-size: var(--fs-sm);
  font-weight: 600;
  text-decoration: none;
  transition: background-color var(--transition-fast), color var(--transition-fast);
}

.site-nav__link:hover,
.site-nav__link:focus-visible {
  background: var(--color-brand-soft);
  color: var(--color-brand-dark);
}

.site-nav__link.is-active {
  color: var(--color-brand-dark);
  background: var(--color-brand-soft);
  box-shadow: inset 0 -2px 0 var(--color-brand);
}

.site-nav__cta {
  margin-left: var(--space-2);
}

.site-nav-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-bg);
  color: var(--color-text);
}

.site-nav-toggle:focus-visible {
  outline: 3px solid var(--color-focus);
}

/* ============================ Contenido ============================ */

.site-main {
  display: block;
}

.section {
  padding-block: var(--space-10);
  border-bottom: 1px solid var(--color-border);
}

.section:last-of-type {
  border-bottom: 0;
}

.section--surface {
  background: var(--color-surface);
}

.section--dark {
  background: var(--color-surface-dark);
  color: var(--color-text-inverse);
}

.section--dark h2,
.section--dark h3,
.section--dark .section__title {
  color: var(--color-text-inverse);
}

.section__head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  margin-bottom: var(--space-5);
}

.section__title {
  font-size: var(--fs-2xl);
  font-weight: 700;
  margin: 0;
}

.section__eyebrow {
  display: inline-block;
  font-size: var(--fs-xs);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-brand-dark);
  margin-bottom: var(--space-2);
}

.section__lead {
  color: var(--color-text-muted);
  margin: 0;
}

.section--dark .section__lead {
  color: #cfd6d2;
}

/* ============================ Pie de página ============================ */

.site-footer {
  background: var(--color-surface-dark);
  color: #d8ded9;
  padding-top: var(--space-10);
  margin-top: var(--space-10);
}

.site-footer a {
  color: #e7ece8;
  text-decoration: none;
}

.site-footer a:hover,
.site-footer a:focus-visible {
  color: #ffffff;
  text-decoration: underline;
}

.site-footer__grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: var(--space-6);
}

.site-footer__title {
  color: #ffffff;
  font-size: var(--fs-base);
  font-weight: 700;
  margin: 0 0 var(--space-3);
}

.site-footer__brand {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-3);
}

.site-footer__brand img {
  max-height: 40px;
  width: auto;
  background: #ffffff;
  border-radius: 50%;
  padding: 4px;
}

.site-footer__text {
  color: #c3cbc5;
  font-size: var(--fs-sm);
  margin: 0 0 var(--space-2);
}

.site-footer__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: var(--space-2);
  font-size: var(--fs-sm);
}

.site-footer__social {
  display: flex;
  gap: var(--space-3);
  margin-top: var(--space-3);
}

.site-footer__social a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: 50%;
  font-size: var(--fs-lg);
}

.site-footer__social a:hover {
  border-color: #ffffff;
}

.site-footer__bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: var(--space-2);
  margin-top: var(--space-8);
  padding-block: var(--space-4);
  border-top: 1px solid rgba(255, 255, 255, 0.15);
  font-size: var(--fs-xs);
  color: #b8c1ba;
}

/* ============================ Panel admin ============================ */

.site-header--admin .site-brand__mark {
  width: 42px;
  height: 42px;
}

.site-header--admin .site-brand__name {
  font-size: var(--fs-base);
}

.site-header--admin .site-nav__link {
  font-weight: 500;
}

.admin-main {
  min-height: 60vh;
  background: var(--color-surface);
}

.admin-user {
  font-size: var(--fs-sm);
  color: var(--color-text-muted);
}

/* ============================ Responsive ============================ */

@media (max-width: 991.98px) {
  .site-nav {
    width: 100%;
    padding: var(--space-3) 0 var(--space-4);
    border-top: 1px solid var(--color-border);
    margin-top: var(--space-2);
  }

  .site-nav__list {
    flex-direction: column;
    align-items: stretch;
    gap: var(--space-1);
  }

  .site-nav__link {
    padding: var(--space-3);
    font-size: var(--fs-base);
  }

  .site-nav__cta {
    margin: var(--space-2) 0 0;
  }

  .site-footer__grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 575.98px) {
  .site-brand__sub {
    display: none;
  }

  .section {
    padding-block: var(--space-8);
  }

  .site-footer__grid {
    grid-template-columns: 1fr;
  }

  .site-footer__bottom {
    justify-content: flex-start;
  }
}