/* ===========================================================
   SEDA — diseño del sitio
   =========================================================== */

/* ===========================================================
   HEADER
   =========================================================== */

.sitio-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--e3);
  padding: var(--e3) var(--margen);
  background: transparent;
  transition: background var(--medio) var(--curva),
              backdrop-filter var(--medio) var(--curva),
              border-color var(--medio) var(--curva),
              padding var(--medio) var(--curva);
  border-bottom: 1px solid transparent;
}

.sitio-header.pegado {
  background: rgba(0, 20, 28, 0.6);
  backdrop-filter: blur(20px) saturate(1.3);
  -webkit-backdrop-filter: blur(20px) saturate(1.3);
  border-bottom-color: var(--linea);
  padding-block: var(--e2);
}

.marca {
  display: flex;
  flex-direction: column;
  align-items: center;
  line-height: 1;
  flex-shrink: 0;
  gap: 0.3rem;
  z-index: 110;
}

.marca .glifo {
  font-family: Georgia, 'Times New Roman', serif;
  font-size: 3.2rem;
  line-height: 0.85;
  transition: font-size var(--medio) var(--curva);
}

.marca .nombre {
  font-size: 0.82rem;
  letter-spacing: 0.44em;
  font-weight: 400;
  text-indent: 0.44em;
  color: var(--crema-tenue);
  transition: font-size var(--medio) var(--curva);
}

.sitio-header.pegado .marca .glifo { font-size: 2.3rem; }
.sitio-header.pegado .marca .nombre { font-size: 0.72rem; }

/* --- navegación --- */

.sitio-nav { display: flex; gap: var(--e3); margin-left: auto; }

.sitio-nav a {
  position: relative;
  font-size: 1.05rem;
  padding-block: 0.4rem;
  color: var(--crema-tenue);
  transition: color var(--rapido) var(--curva);
}

.sitio-nav a::after {
  content: '';
  position: absolute;
  left: 0; bottom: 0;
  height: 1px;
  width: 100%;
  background: var(--oro);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--medio) var(--curva);
}

.sitio-nav a:hover,
.sitio-nav a[aria-current="page"] { color: var(--crema); }

.sitio-nav a:hover::after,
.sitio-nav a[aria-current="page"]::after { transform: scaleX(1); }

/* --- botón de menú (solo celular) --- */

.abrir-menu {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 6px;
  width: 44px;
  height: 44px;
  padding: 0;
  background: transparent;
  border: 0;
  cursor: pointer;
  flex-shrink: 0;
  z-index: 110;
}

.abrir-menu span {
  display: block;
  width: 26px;
  height: 1.5px;
  background: var(--crema);
  transition: transform var(--medio) var(--curva),
              opacity var(--rapido) var(--curva);
}

body.menu-abierto .abrir-menu span:nth-child(1) {
  transform: translateY(7.5px) rotate(45deg);
}
body.menu-abierto .abrir-menu span:nth-child(2) { opacity: 0; }
body.menu-abierto .abrir-menu span:nth-child(3) {
  transform: translateY(-7.5px) rotate(-45deg);
}

/* --- idiomas --- */

.idiomas { display: flex; gap: 0.3rem; flex-shrink: 0; z-index: 110; }

.idiomas button {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  background: transparent;
  border: 1px solid var(--linea);
  border-radius: 999px;
  padding: 0.5rem 1rem;
  font-family: var(--fuente-dato);
  font-size: 0.82rem;
  letter-spacing: 0.12em;
  color: var(--crema-tenue);
  cursor: pointer;
  transition: color var(--rapido) var(--curva),
              border-color var(--rapido) var(--curva),
              background var(--rapido) var(--curva);
}

.idiomas button:hover { color: var(--crema); border-color: var(--crema-tenue); }

.idiomas button[aria-pressed="true"] {
  color: var(--tinta);
  background: var(--crema);
  border-color: var(--crema);
}

/* ===========================================================
   BOTONES
   =========================================================== */

.boton {
  position: relative;
  display: inline-flex;
  align-self: flex-start;
  width: fit-content;
  align-items: center;
  gap: 0.7rem;
  padding: 1.15rem 2.6rem;
  border: 1px solid var(--crema);
  border-radius: 999px;
  font-family: var(--fuente-dato);
  font-size: 0.85rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--crema);
  overflow: hidden;
  isolation: isolate;
  cursor: pointer;
  transition: color var(--medio) var(--curva),
              transform var(--rapido) var(--curva),
              border-color var(--medio) var(--curva);
}

.boton::before {
  content: '';
  position: absolute;
  inset: 0;
  z-index: -1;
  background: var(--crema);
  transform: translateY(101%);
  transition: transform var(--medio) var(--curva);
}

.boton:hover { color: var(--tinta); transform: translateY(-2px); }
.boton:hover::before { transform: translateY(0); }
.boton:active { transform: translateY(0); }

.boton.lleno { background: var(--crema); color: var(--tinta); border-color: var(--crema); }
.boton.lleno::before { background: var(--oro); }
.boton.lleno:hover { color: var(--tinta); border-color: var(--oro); }

.cierre .boton { align-self: center; }

/* ===========================================================
   HERO
   =========================================================== */

.hero {
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: flex-start;
  padding-block: var(--e6) var(--e5);
}

.hero .dato { margin-bottom: var(--e3); }
.hero h1 { max-width: 17ch; margin-bottom: var(--e3); }

.hero .bajada {
  font-family: var(--fuente-dato);
  font-size: var(--t-dato);
  letter-spacing: 0.08em;
  line-height: 2;
  color: var(--crema-tenue);
  text-transform: none;
  margin-bottom: var(--e4);
  max-width: 48ch;
}

/* ===========================================================
   SECCIONES
   =========================================================== */

.seccion-alterna {
  background: linear-gradient(180deg,
    rgba(0, 20, 28, 0) 0%,
    rgba(0, 20, 28, 0.6) 18%,
    rgba(0, 20, 28, 0.6) 82%,
    rgba(0, 20, 28, 0) 100%);
}

.encabezado-seccion {
  margin-bottom: var(--e4);
  padding-bottom: var(--e3);
  border-bottom: 1px solid var(--linea);
}

.texto-largo p + p { margin-top: var(--e2); }

/* ===========================================================
   TARJETAS
   =========================================================== */

.rejilla {
  position: relative;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--e3);
}

.tarjeta {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding: var(--e3);
  display: flex;
  flex-direction: column;
  gap: var(--e2);
  border: 1px solid rgba(238, 229, 209, 0.1);
  border-radius: 2px;
  background:
    radial-gradient(120% 90% at 50% -10%,
      rgba(120, 90, 190, 0.16) 0%,
      rgba(30, 80, 110, 0.10) 45%,
      rgba(0, 20, 28, 0.55) 100%);
  backdrop-filter: blur(10px);
  transition: border-color var(--medio) var(--curva),
              transform var(--medio) var(--curva),
              box-shadow var(--medio) var(--curva);
}

.tarjeta::after {
  content: '';
  position: absolute;
  inset: 0;
  z-index: -1;
  opacity: 0;
  transition: opacity var(--medio) var(--curva);
  background: radial-gradient(
    420px circle at var(--mx, 50%) var(--my, 50%),
    rgba(212, 180, 131, 0.13),
    rgba(120, 90, 190, 0.07) 40%,
    transparent 68%);
}

.tarjeta:hover {
  border-color: rgba(212, 180, 131, 0.38);
  transform: translateY(-5px);
  box-shadow: 0 18px 50px -20px rgba(0, 0, 0, 0.7);
}

.tarjeta:hover::after { opacity: 1; }

.tarjeta p { font-size: 1.02rem; }

.tarjeta .ejemplo {
  font-family: var(--fuente-dato);
  font-size: 0.86rem;
  line-height: 1.95;
  color: var(--crema-tenue);
  padding: var(--e2);
  border-left: 2px solid var(--oro-suave);
  background: rgba(0, 14, 20, 0.45);
  border-radius: 0 3px 3px 0;
}

.tarjeta .enlace {
  margin-top: auto;
  padding-top: var(--e2);
  font-family: var(--fuente-dato);
  font-size: 0.8rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--oro);
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  transition: gap var(--rapido) var(--curva);
}

.tarjeta .enlace::after { content: '→'; }
.tarjeta:hover .enlace { gap: 0.9rem; }

/* ===========================================================
   CIERRE
   =========================================================== */

.cierre { text-align: center; display: flex; flex-direction: column; align-items: center; }
.cierre h2 { max-width: 20ch; margin-bottom: var(--e2); }
.cierre p { margin-bottom: var(--e3); }

/* ===========================================================
   PIE
   =========================================================== */

.sitio-pie {
  border-top: 1px solid var(--linea);
  padding-block: var(--e3);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: var(--e2);
}

/* ===========================================================
   APARICIÓN AL HACER SCROLL
   =========================================================== */

.aparece {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity var(--lento) var(--curva),
              transform var(--lento) var(--curva);
}

.aparece.visible { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  .aparece { opacity: 1; transform: none; }
}

/* ===========================================================
   CELULAR
   =========================================================== */

@media (max-width: 860px) {
  .abrir-menu { display: flex; }

  /* orden en celular: marca | idiomas | hamburguesa */
  .sitio-header { gap: var(--e1); }
  .marca { order: 1; margin-right: auto; }
  .idiomas { order: 2; }
  .abrir-menu { order: 3; }

  /* Sin blur en el header de celular: en Safari/iOS un backdrop-filter
     atrapa a los hijos con position:fixed dentro del header y el menú
     deja de ocupar la pantalla completa. */
  .sitio-header.pegado {
    background: rgba(0, 20, 28, 0.94);
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
  }

  .sitio-nav {
    position: fixed;
    inset: 0;
    z-index: 105;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--e3);
    margin: 0;
    padding: var(--e5) var(--margen) var(--e4);
    background: #001A24;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-12px);
    transition: opacity var(--medio) var(--curva),
                transform var(--medio) var(--curva),
                visibility var(--medio);
  }

  body.menu-abierto .sitio-nav {
    opacity: 1;
    visibility: visible;
    transform: none;
  }

  .sitio-nav a {
    font-size: 1.9rem;
    color: var(--crema);
    padding-block: 0.3rem;
  }

  .sitio-nav a::after { display: none; }
  .sitio-nav a[aria-current="page"] { color: var(--oro); }

  body.menu-abierto { overflow: hidden; }

  .hero { min-height: 92svh; }
  .sitio-pie { flex-direction: column; }
  .marca .glifo { font-size: 2.4rem; }
  .marca .nombre { font-size: 0.7rem; letter-spacing: 0.34em; text-indent: 0.34em; }
  .idiomas { gap: 0.25rem; }
  .idiomas button { padding: 0.42rem 0.7rem; font-size: 0.74rem; gap: 0.3rem; }
}

/* Las banderitas se quedan en TODOS los anchos: medido, en 320px
   (iPhone SE) todavía sobran 39px en el header. No ocultarlas. */
@media (max-width: 420px) {
  .sitio-nav a { font-size: 1.65rem; }
}