/* Plantilla DS — chrome compartido (navbar + footer) y utilidades globales
   (assets/site.css). El navbar y el footer los inyecta assets/site.js en los
   placeholders #site-nav / #site-footer de cada página. */

/* ---------- Utilidades globales ---------- */

.ds-container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding-left: var(--gutter);
  padding-right: var(--gutter);
}

/* Offset de anclas bajo el navbar sticky */
[id] { scroll-margin-top: 92px; }

/* ---------- Botones ---------- */
/* Píldora; hover = elevación, press = volver a su sitio. Sin cambios de color
   agresivos: el movimiento ya comunica el estado. */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  font-family: var(--font-body);
  font-weight: var(--weight-semibold);
  font-size: 15px;
  line-height: 1.2;
  padding: 12px 26px;
  border-radius: var(--radius-pill);
  border: 1px solid transparent;
  cursor: pointer;
  text-decoration: none;
  transition:
    transform var(--duration-fast) var(--ease-out),
    background var(--duration-fast) var(--ease-out),
    color var(--duration-fast) var(--ease-out),
    border-color var(--duration-fast) var(--ease-out),
    box-shadow var(--duration-fast) var(--ease-out);
}
.btn:hover { text-decoration: none; transform: translateY(-2px); box-shadow: var(--shadow-soft); }
.btn:active { transform: translateY(0); box-shadow: none; }

/* Primario = tinta, no color de marca: el acento se reserva para el hover y
   para los detalles. Un botón casi negro sobre papel cálido pesa lo justo. */
.btn--primary { background: var(--ink); color: var(--text-inverse); border-color: var(--ink); }
.btn--primary:hover { background: var(--brand-deep); border-color: var(--brand-deep); color: var(--text-inverse); }

.btn--secondary { background: transparent; color: var(--ink); border-color: var(--border-strong); }
.btn--secondary:hover { color: var(--brand); border-color: var(--brand); }

/* Para secciones oscuras (--surface-inverse) */
.btn--inverse { background: var(--paper); color: var(--ink); border-color: var(--paper); }
.btn--inverse:hover { background: var(--stone-1); border-color: var(--stone-1); color: var(--ink); }

.btn--sm { padding: 8px 18px; font-size: 14px; }
.btn--lg { padding: 15px 32px; font-size: 16px; }

/* Botón bloqueado (p. ej. hasta aceptar el consentimiento del formulario) */
.btn:disabled, .btn[disabled] { opacity: 0.5; cursor: not-allowed; transform: none; box-shadow: none; }
.btn:disabled:hover, .btn[disabled]:hover { transform: none; box-shadow: none; }

/* Icono dentro de un botón: cubre <i> y <svg> (las librerías de iconos
   sustituyen el <i> por un <svg> al inicializarse) */
.btn i, .btn svg { width: 18px; height: 18px; flex: none; }

/* ---------- Navbar ---------- */

.nav {
  position: sticky;
  top: 0;
  z-index: 40;
  background: color-mix(in srgb, var(--paper) 85%, transparent);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-subtle);
  transition: box-shadow var(--duration-base) var(--ease-out);
}
.nav.nav--scrolled { box-shadow: var(--shadow-soft); }

/* En la portada el navbar flota siempre (fixed). Sobre el hero va "desnudo"
   (nav--bare): fondo transparente y solo lo imprescindible; al pasar el hero,
   site.js quita nav--bare y el navbar completo "se forma": marca y enlaces
   entran con fade y aparece el fondo con blur. */
.nav--float {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
}
.nav--bare {
  background: transparent;
  -webkit-backdrop-filter: none;
  backdrop-filter: none;
  border-bottom-color: transparent;
  box-shadow: none !important;
}
.nav--bare .nav__brand,
.nav--bare .nav__links {
  opacity: 0;
  visibility: hidden;
  transform: translateY(-6px);
}
@media (prefers-reduced-motion: no-preference) {
  .nav--float {
    transition: background-color var(--duration-base) var(--ease-out),
                border-color var(--duration-base) var(--ease-out),
                box-shadow var(--duration-base) var(--ease-out);
  }
  .nav--float .nav__brand,
  .nav--float .nav__links {
    transition: opacity var(--duration-base) var(--ease-out),
                transform var(--duration-base) var(--ease-out),
                visibility 0s 0s;
  }
  .nav--bare .nav__brand,
  .nav--bare .nav__links {
    transition: opacity var(--duration-base) var(--ease-out),
                transform var(--duration-base) var(--ease-out),
                visibility 0s var(--duration-base);
  }
}

.nav__in {
  display: flex;
  align-items: center;
  gap: 28px;
  height: 68px;
}

/* Lockup de marca: símbolo (SVG inline, coloreado por tokens) + wordmark en
   TEXTO REAL con la serif de display. Cero peticiones, escala perfecta y el
   wordmark hereda la tipografía del sistema. */
.nav__brand {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-family: var(--font-display);
  font-size: 26px;
  letter-spacing: var(--tracking-display);
  color: var(--ink);
  line-height: 1;
  text-decoration: none;
}
.nav__brand:hover { color: var(--ink); text-decoration: none; }
.nav__brand .mark { height: 34px; width: auto; display: block; }

/* Piezas del símbolo. Cambia el SVG en site.js por el tuyo manteniendo estas
   clases y el logo se colorea solo, también en negativo sobre el footer. */
.mark .mark-stroke { stroke: var(--ink); }
.mark .mark-fill   { fill: var(--brand); }
.mark .mark-accent { stroke: var(--brand); }

.nav__links { display: flex; gap: 4px; }
.nav__links a {
  font-size: 15px;
  font-weight: var(--weight-medium);
  color: var(--ink-2);
  padding: 8px 12px;
  border-radius: var(--radius-pill);
  text-decoration: none;
  transition: background var(--duration-fast) var(--ease-out), color var(--duration-fast) var(--ease-out);
}
.nav__links a:hover { color: var(--brand); background: var(--brand-tint); text-decoration: none; }

.nav__side { margin-left: auto; display: flex; align-items: center; gap: 18px; }

/* Selector de idioma discreto (site.js solo lo pinta si hay más de un idioma) */
.nav__langs, .ft__langs { display: flex; align-items: center; gap: 2px; }
.nav__langs a, .nav__langs span,
.ft__langs a, .ft__langs span {
  font-size: 12px;
  font-weight: var(--weight-semibold);
  letter-spacing: 0.06em;
  padding: 4px 6px;
  border-radius: var(--radius-sm);
  text-decoration: none;
}
.nav__langs a { color: var(--ink-3); }
.nav__langs a:hover { color: var(--brand); background: var(--brand-tint); text-decoration: none; }
.nav__langs .is-current { color: var(--ink); }
.nav__langs .lang-sep { color: var(--stone-3); padding: 0; }

/* Brillo periódico sobre el CTA del navbar (sutil; estático con reduced-motion) */
@media (prefers-reduced-motion: no-preference) {
  .nav__cta { position: relative; overflow: hidden; }
  .nav__cta::after {
    content: '';
    position: absolute;
    top: 0;
    bottom: 0;
    left: -45%;
    width: 38%;
    transform: skewX(-18deg) translateX(0);
    background: linear-gradient(105deg, transparent,
      color-mix(in srgb, var(--paper) 22%, transparent), transparent);
    animation: navSheen 7s var(--ease-in-out) infinite;
    pointer-events: none;
  }
}
@keyframes navSheen {
  0%, 86% { transform: skewX(-18deg) translateX(0); }
  100% { transform: skewX(-18deg) translateX(480%); }
}

/* Hamburguesa (solo móvil) */
.nav__burger {
  display: none;
  background: none;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-pill);
  width: 42px;
  height: 42px;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: var(--ink);
}
.nav__burger svg { width: 20px; height: 20px; display: block; }
.nav__burger .ico-close { display: none; }
.nav__burger[aria-expanded="true"] .ico-open { display: none; }
.nav__burger[aria-expanded="true"] .ico-close { display: block; }

/* Panel desplegable móvil */
.nav__menu {
  border-top: 1px solid var(--border-subtle);
  background: var(--paper);
  padding: 12px var(--gutter) 24px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.nav__menu[hidden] { display: none; }
.nav__menu a:not(.btn) {
  font-size: 17px;
  font-weight: var(--weight-medium);
  color: var(--ink-2);
  padding: 12px 10px;
  border-radius: var(--radius-sm);
  text-decoration: none;
}
.nav__menu a:not(.btn):hover { color: var(--brand); background: var(--brand-tint); text-decoration: none; }
.nav__menu .btn { margin-top: 12px; align-self: flex-start; }
.nav__menu .nav__langs { margin-top: 16px; }

@media (max-width: 860px) {
  .nav__links, .nav__side .nav__langs, .nav__side .nav__cta { display: none; }
  .nav__burger { display: inline-flex; }
  .nav__in { gap: 16px; }
}

/* ---------- Footer ---------- */

.ft {
  background: var(--surface-inverse);
  color: var(--paper);
  padding: 64px 0 40px;
  position: relative;
  overflow: hidden;
}

.ft__in {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  gap: 48px;
  align-items: flex-start;
}

.ft__brand { display: flex; flex-direction: column; gap: 14px; min-width: 220px; }
.ft__wordmark {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-size: 30px;
  letter-spacing: var(--tracking-display);
  color: var(--paper);
  line-height: 1;
}
.ft__wordmark .mark { height: 38px; width: auto; display: block; }
/* Variante negativa del símbolo sobre fondo oscuro: todo a papel */
.ft__wordmark .mark .mark-stroke,
.ft__wordmark .mark .mark-accent { stroke: var(--paper); }
.ft__wordmark .mark .mark-fill { fill: var(--paper); }

.ft__tag {
  margin: 0;
  font-size: 14px;
  color: color-mix(in srgb, var(--paper) 60%, transparent);
  max-width: 260px;
}

.ft__cols { display: flex; gap: 64px; margin-left: auto; flex-wrap: wrap; }
.ft__col { display: flex; flex-direction: column; gap: 10px; font-size: 14px; }
.ft__col a { color: color-mix(in srgb, var(--paper) 75%, transparent); text-decoration: none; }
.ft__col a:hover { color: var(--paper); text-decoration: underline; }
.ft__col span { color: color-mix(in srgb, var(--paper) 60%, transparent); }

.ft__base {
  position: relative;
  margin-top: 48px;
  padding-top: 20px;
  border-top: 1px solid color-mix(in srgb, var(--paper) 14%, transparent);
  font-size: 13px;
  /* 62% y no menos: con 45% el © se quedaba en 4.0:1 de contraste (falla AA) */
  color: color-mix(in srgb, var(--paper) 62%, transparent);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

.ft__langs a { color: color-mix(in srgb, var(--paper) 55%, transparent); }
.ft__langs a:hover {
  color: var(--paper);
  background: color-mix(in srgb, var(--paper) 12%, transparent);
  text-decoration: none;
}
.ft__langs .is-current { color: var(--paper); }
.ft__langs .lang-sep { color: color-mix(in srgb, var(--paper) 30%, transparent); padding: 0; }

@media (max-width: 640px) {
  .ft__cols { margin-left: 0; gap: 32px; }
}