/* =============================================================================
   COVATECK — portada (portada.css)
   Hero mínimo: un titular grande, una línea, un botón y el producto saliendo
   del papel (sin marco: la captura se funde por los bordes y entra en
   perspectiva que se aplana al bajar). Debajo, las losas de borde a borde de
   la base Apple y el carrusel de pantallas. Sobre sistema.css; claro y oscuro
   por tokens, con capturas distintas en cada tema.
   ============================================================================= */

body { background: var(--papel); }
main { padding-top: var(--cab-h, 92px); }
.cont { max-width: calc(1168px + 2 * 24px); padding: 0 24px; }

/* capturas según el tema */
.solo-oscuro { display: none; }
[data-tema="oscuro"] .solo-claro { display: none; }
[data-tema="oscuro"] .solo-oscuro { display: block; }

/* ---------- botones ---------- */
.btn-azul, .btn-linea, .btn-suave {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  height: 46px; padding: 0 22px; border-radius: 999px;
  font-size: 15px; font-weight: 600;
  transition: background-color .35s var(--lujo), color .35s var(--lujo), border-color .35s var(--lujo), opacity .2s ease;
}
.btn-azul { background: var(--azul); color: #fff; }
.btn-azul:hover { background: var(--azul-2); }
.btn-linea { border: 1px solid var(--azul); color: var(--azul); background: transparent; }
.btn-linea:hover { background: var(--azul); color: #fff; }
.btn-suave { background: rgba(15,22,32,0.07); color: var(--tinta); }
.btn-suave:hover { background: rgba(15,22,32,0.11); }
[data-tema="oscuro"] .btn-suave { background: rgba(244,241,234,0.1); }
.btn-azul:active, .btn-linea:active, .btn-suave:active { opacity: .86; }

/* ---------- hero ---------- */
.hero { padding: var(--s-64) 0 0; overflow: hidden; }
.hero-in { text-align: center; }
.hero-h { font-size: 76px; line-height: 1.0; font-weight: 800; letter-spacing: -0.035em; }
.hero-h > span { display: block; }
.hero-p { margin: var(--s-20) auto 0; font-size: 19px; line-height: 1.5; color: var(--tinta-2); max-width: 60ch; }
.hero-acciones { display: flex; flex-wrap: wrap; justify-content: center; gap: 12px; margin-top: var(--s-24); }

/* el producto sale del papel: sin borde, fundido en los bordes, en perspectiva */
.hero-escena { perspective: 1600px; margin-top: var(--s-48); padding: 0 24px; }
.hero-prod {
  position: relative;
  max-width: 1280px; margin: 0 auto;
  transform: rotateX(var(--hx, 7deg)) scale(var(--hs, .98));
  transform-origin: 50% 0;
  transform-style: preserve-3d;
  -webkit-mask-image: linear-gradient(180deg, #000 0%, #000 70%, transparent 100%);
          mask-image: linear-gradient(180deg, #000 0%, #000 70%, transparent 100%);
}
.hero-prod img {
  width: 100%; height: auto; display: block;
  border-radius: 14px 14px 0 0;
  box-shadow: 0 40px 90px -40px rgba(15,22,32,0.55);
}
@supports (animation-timeline: view()) {
  @media (prefers-reduced-motion: no-preference) {
    .hero-prod { animation: heroAplana linear both; animation-timeline: view(); animation-range: entry 0% cover 45%; }
  }
}
@keyframes heroAplana { to { transform: rotateX(0deg) scale(1); } }

/* ---------- losas (base Apple), de borde a borde ---------- */
.losa {
  position: relative; display: flex; flex-direction: column; align-items: center;
  overflow: hidden; margin: 0 0 12px; min-height: 580px; text-align: center;
}
.losa--alta { min-height: 720px; }
.losa--texto { min-height: 0; padding: 96px 24px; margin-bottom: 0; }
.losa--papel { background: var(--papel-2); color: var(--tinta); }
.losa--tinta { background: #0F1620; color: #F4F1EA; }
.losas-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-bottom: 12px; }
.losas-2 .losa { margin-bottom: 0; }
.losa-txt { padding: 56px 24px 0; max-width: 640px; z-index: 1; }
.losa-h { font-size: 56px; line-height: 1.07; font-weight: 800; letter-spacing: -0.03em; }
.losa-h--m { font-size: 40px; }
.losa-sub { margin-top: 8px; font-size: 26px; line-height: 1.2; font-weight: 500; letter-spacing: -0.015em; }
.losa-sub--m { font-size: 21px; }
.losa-nota { margin-top: 12px; font-size: 16px; line-height: 1.45; color: var(--tinta-2); max-width: 48ch; margin-left: auto; margin-right: auto; }
.losa--tinta .losa-nota { color: rgba(244,241,234,0.7); }
.losa-acciones { display: flex; flex-wrap: wrap; justify-content: center; gap: 12px; margin-top: 20px; }
.pill {
  position: relative; overflow: hidden;
  display: inline-flex; align-items: center; justify-content: center;
  height: 40px; padding: 0 18px; border-radius: 999px;
  font-size: 15px; font-weight: 600; line-height: 1; white-space: nowrap;
  transition: background-color .35s var(--lujo), color .35s var(--lujo), border-color .35s var(--lujo), opacity .2s ease;
}
.pill:active { opacity: .86; }
.pill--azul { background: var(--azul); color: #fff; }
.pill--azul:hover { background: var(--azul-2); }
.pill--linea { border: 1px solid var(--azul); color: var(--azul); }
.pill--linea:hover { background: var(--azul); color: #fff; }
.losa--tinta .pill--azul { background: #F4F1EA; color: #0F1620; }
.losa--tinta .pill--azul:hover { background: #fff; }
.losa--tinta .pill--linea { border-color: rgba(244,241,234,0.55); color: #F4F1EA; }
.losa--tinta .pill--linea:hover { background: #F4F1EA; color: #0F1620; border-color: #F4F1EA; }
.losa-media { position: relative; width: 100%; flex: 1; margin-top: 40px; display: flex; justify-content: center; align-items: flex-start; min-height: 0; overflow: hidden; }
.marco { position: relative; width: min(1100px, 84%); border-radius: 10px 10px 0 0; overflow: hidden; background: var(--superficie); box-shadow: var(--sombra-ventana); }
.losas-2 .marco { width: 86%; }
.marco--oscuro { background: #0B1119; box-shadow: 0 1px 1px rgba(0,0,0,0.3), 0 30px 70px -30px rgba(0,0,0,0.7), 0 0 0 1px rgba(244,241,234,0.10); }
.marco--oscuro::before { content: ''; position: absolute; left: 0; right: 0; top: 0; height: 1px; background: linear-gradient(90deg, rgba(244,241,234,0) 0%, rgba(244,241,234,0.45) 50%, rgba(244,241,234,0) 100%); z-index: 2; pointer-events: none; }
.marco img { width: 100%; height: auto; display: block; }
.marco--video { aspect-ratio: 16 / 9; background: var(--papel-3); }
.marco--video video { width: 100%; height: 100%; object-fit: cover; display: block; }
.losa--alta .losa-media { max-height: 420px; }
.losas-2 .losa-media { max-height: 300px; }
.losa-media--tel { max-height: 320px; }
.tel { width: 250px; padding: 10px; border-radius: 36px 36px 0 0; background: #0F1620; box-shadow: var(--sombra-ventana); }
.tel img { width: 100%; height: auto; border-radius: 26px 26px 0 0; display: block; }

/* ---------- carrusel ---------- */
.carrusel { padding: 96px 0 72px; }
.carrusel-h { text-align: center; font-size: 48px; font-weight: 800; letter-spacing: -0.03em; line-height: 1.1; padding: 0 24px; text-wrap: balance; }
.carrusel-sub { margin: 14px auto 0; padding: 0 24px; max-width: 60ch; text-align: center; font-size: 18px; line-height: 1.5; color: var(--tinta-2); }
.carrusel-pista {
  display: flex; gap: 20px;
  margin-top: 48px;
  padding: 0 calc((100% - min(1250px, 86%)) / 2);
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  scroll-behavior: smooth;
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
}
.carrusel-pista::-webkit-scrollbar { display: none; }
.carrusel-pista:focus-visible { outline: 2px solid var(--azul); outline-offset: -2px; }
@media (prefers-reduced-motion: reduce) { .carrusel-pista { scroll-behavior: auto; } }
.tarjeta { position: relative; flex: 0 0 min(1250px, 86%); display: flex; flex-direction: column; scroll-snap-align: center; }
.tarjeta picture {
  display: block; aspect-ratio: 16 / 8.4; overflow: hidden;
  border-radius: 20px; background: var(--superficie);
  border: 1px solid var(--linea);
  box-shadow: 0 1px 2px rgba(15,22,32,0.06), 0 24px 60px -30px rgba(15,22,32,0.35);
}
.tarjeta img { width: 100%; height: 100%; object-fit: cover; object-position: top left; display: block; }
.tarjeta figcaption { display: flex; flex-direction: column; align-items: center; gap: 4px; padding: 18px 20px 0; text-align: center; }
.tarjeta-nombre { font-size: 14px; font-weight: 700; letter-spacing: .02em; color: var(--tinta); }
.tarjeta-txt { font-size: 14px; color: var(--tinta-2); max-width: 52ch; }
.carrusel-ctl { display: flex; align-items: center; justify-content: flex-end; gap: 8px; width: min(1250px, 86%); margin: 24px auto 0; }
.carrusel-barra { flex: 1; height: 2px; margin-right: 16px; background: var(--linea-2); border-radius: 2px; overflow: hidden; }
.carrusel-barra i { display: block; height: 100%; width: 12.5%; background: var(--tinta); border-radius: 2px; transition: transform var(--t-sec) var(--ease); }
.carrusel-btn {
  display: inline-flex; align-items: center; justify-content: center;
  width: 40px; height: 40px; border-radius: 50%;
  background: rgba(15,22,32,0.07); color: var(--tinta);
  transition: background-color var(--t-ui) ease, transform var(--t-micro) ease, opacity var(--t-ui) ease;
}
[data-tema="oscuro"] .carrusel-btn { background: rgba(244,241,234,0.1); }
.carrusel-btn:hover { background: rgba(15,22,32,0.12); }
[data-tema="oscuro"] .carrusel-btn:hover { background: rgba(244,241,234,0.18); }
.carrusel-btn:active { transform: scale(.94); }
.carrusel-btn[disabled] { opacity: .35; cursor: default; }
.carrusel-btn svg { width: 18px; height: 18px; }

/* ---------- tableta ---------- */
@media (max-width: 1100px) {
  .hero-h { font-size: 60px; }
  .losa--alta { min-height: 640px; }
  .losa-h { font-size: 44px; }
  .losa-sub { font-size: 22px; }
  .losas-2 { grid-template-columns: 1fr; }
  .losas-2 .losa { min-height: 560px; }
  .carrusel-h { font-size: 36px; }
}

/* ---------- móvil ---------- */
@media (max-width: 768px) {
  .hero { padding-top: var(--s-40); }
  .hero-h { font-size: 42px; letter-spacing: -0.03em; }
  .hero-p { font-size: 16px; }
  .hero-escena { margin-top: var(--s-32); padding: 0 12px; }
  .hero-prod { transform: none; animation: none; }
  .hero-prod img { border-radius: 8px 8px 0 0; }
  .losa, .losa--alta, .losas-2 .losa { min-height: 0; margin-bottom: 8px; }
  .losas-2 { gap: 8px; margin-bottom: 8px; }
  .losas-2 .losa { margin-bottom: 0; }
  .losa-txt { padding: 44px 20px 0; }
  .losa-h { font-size: 36px; }
  .losa-h--m { font-size: 32px; }
  .losa-sub { font-size: 20px; }
  .losa-sub--m { font-size: 18px; }
  .losa-nota { font-size: 15px; }
  .losa-acciones { gap: 10px; }
  .losa-media { margin-top: 28px; }
  .marco, .losas-2 .marco { width: 150%; margin-left: -8%; align-self: flex-start; }
  .losa--alta .losa-media { max-height: 300px; }
  .losas-2 .losa-media { max-height: 240px; }
  .marco--video { width: 92%; margin-left: 0; }
  .tel { width: 220px; }
  .losa--texto { padding: 72px 20px; }
  .carrusel { padding: 64px 0 48px; }
  .carrusel-h { font-size: 30px; }
  .carrusel-sub { font-size: 15px; }
  .carrusel-pista { gap: 12px; margin-top: 28px; padding: 0 16px; scroll-padding: 0 16px; }
  .tarjeta { flex-basis: 88%; scroll-snap-align: start; }
  .tarjeta picture { aspect-ratio: 4 / 3; border-radius: 14px; }
  .tarjeta figcaption { padding: 12px 8px 0; }
  .tarjeta-nombre, .tarjeta-txt { font-size: 13px; }
  .carrusel-ctl { width: auto; margin: 16px 16px 0; }
}