/* =========================================================
   Base Maestra · componentes.css
   Piezas pequeñas que se repiten: fondo vivo, botones, navegación, menú, umbral,
   franja legal, vidrio, capas vivas, estados, formularios, preguntas y pie.
   ========================================================= */

/* ---------- Fondo vivo (WebGL) y grano ---------- */
.fondo-vivo { position: fixed; inset: 0; width: 100%; height: 100%; z-index: 0; pointer-events: none; }
.grano {
  position: fixed; inset: -50%; z-index: 55; pointer-events: none; opacity: var(--grano); mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='160' height='160'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2' stitchTiles='stitch'/></filter><rect width='100%' height='100%' filter='url(%23n)'/></svg>");
}
main, .pie { position: relative; z-index: 1; }

/* ---------- Botones y enlaces ---------- */
.boton {
  display: inline-flex; align-items: center; justify-content: center; gap: .6em;
  min-height: 48px; padding: .85rem 1.6rem; border-radius: var(--r-boton); border: 1px solid currentColor;
  font-family: var(--f-texto); font-weight: 500; font-size: .95rem; letter-spacing: .01em; text-decoration: none;
  transition: background-color var(--d-2) var(--ease), color var(--d-2) var(--ease), border-color var(--d-2) var(--ease), transform var(--d-1) var(--ease);
}
.boton:active { transform: scale(.97); }
.boton--lleno { background: var(--fg); color: var(--bg); border-color: var(--fg); }
.boton--lleno:hover { background: var(--acento); border-color: var(--acento); color: var(--bg); }
.boton--linea { background: transparent; color: var(--fg); border-color: color-mix(in oklab, var(--fg) 45%, transparent); }
.boton--linea:hover { border-color: var(--fg); background: color-mix(in oklab, var(--fg) 8%, transparent); }
.boton[disabled], .boton[aria-disabled="true"] { opacity: .45; pointer-events: none; }
.enlace {
  display: inline-block; font-weight: 500; font-size: .95rem; text-decoration: none;
  background: linear-gradient(currentColor, currentColor) 0 100% / 100% 1px no-repeat;
  padding-bottom: .2em; transition: background-size .5s var(--ease);
}
.enlace:hover { background-size: 30% 1px; }

/* ---------- Navegación ----------
   Una sola línea en escritorio. Su color lo decide nucleo.js según lo que tiene debajo (--nav-fg/--nav-bg). */
.nav {
  position: fixed; inset: 0 0 auto 0; z-index: 50; height: var(--nav-h);
  display: flex; align-items: center; justify-content: space-between; gap: 2rem;
  padding: 0 var(--gutter); color: var(--nav-fg, var(--fg));
  transition: transform .6s var(--ease), color .6s var(--ease);
}
.nav.oculta { transform: translateY(-110%); }
.nav::before {
  content: ""; position: absolute; inset: 0 0 -32px 0; z-index: -1; opacity: 0; pointer-events: none;
  background: linear-gradient(to bottom, color-mix(in oklab, var(--nav-bg, var(--bg)) 92%, transparent) 0%,
              color-mix(in oklab, var(--nav-bg, var(--bg)) 70%, transparent) 55%, transparent);
  transition: opacity .6s var(--ease);
}
.nav.con-fondo::before { opacity: 1; }
.nav__marca { text-decoration: none; }
.nav__marca img { height: 28px; width: auto; }
.nav__enlaces { display: flex; gap: clamp(1rem, 2.4vw, 2.2rem); font-size: .9rem; }
.nav__enlaces a { text-decoration: none; opacity: .86; transition: opacity var(--d-2) var(--ease); }
.nav__enlaces a:hover, .nav__enlaces a[aria-current] { opacity: 1; }
.nav__menu {
  display: none; min-height: 44px; padding: .5rem 1rem; border-radius: var(--r-boton); background: none;
  border: 1px solid color-mix(in oklab, currentColor 40%, transparent); font-size: .85rem;
}
@media (max-width: 899px) {
  .nav__enlaces { display: none; }
  .nav__menu { display: inline-flex; align-items: center; }
}

/* ---------- Menú móvil ---------- */
.menu {
  position: fixed; inset: 0; z-index: 70; display: grid; align-items: center;
  padding: calc(var(--nav-h) + 2rem) var(--gutter) calc(var(--legal-h) + 2rem);
  background: var(--bg); color: var(--fg);
}
.menu[hidden] { display: none; }
.menu nav { display: grid; gap: .4rem; }
.menu a { font-family: var(--f-display); font-size: clamp(2.2rem, 9vw, 4rem); line-height: 1.1; text-decoration: none; }
.menu__cerrar { position: absolute; top: calc((var(--nav-h) - 44px) / 2); right: var(--gutter); }

/* ---------- Vidrio: tarjetas bajo el texto ----------
   Solo donde el texto pisa algo vivo (video, croma, foto, fondo vivo). Nunca como decoración.
   El tinte y el filtro vienen de temas.css, calculados por sistema.py para el peor caso posible. */
.vidrio {
  --g-r: var(--r-2);
  --g-pad: clamp(1.4rem, 2.6vw, 2.6rem);
  --g-tint: color-mix(in oklab, var(--bg) var(--g-deep, 82%), var(--g-to, #000));
  --muted: color-mix(in oklab, var(--fg) 86%, var(--bg));
  --linea: color-mix(in oklab, var(--fg) 26%, transparent);
  position: relative; z-index: 2; isolation: isolate;
  padding: var(--g-pad); border-radius: var(--g-r);
  background:
    linear-gradient(158deg, color-mix(in srgb, var(--fg) 7%, transparent), transparent 38%),
    color-mix(in srgb, var(--g-tint) var(--g-a, 70%), transparent);
  -webkit-backdrop-filter: var(--g-filter); backdrop-filter: var(--g-filter);
  box-shadow: inset 0 1px 0 color-mix(in srgb, var(--fg) 16%, transparent), var(--g-shadow);
}
.vidrio::before {                          /* filo: un hilo del color de acento que se apaga hacia el centro */
  content: ""; position: absolute; inset: 0; z-index: -1; pointer-events: none; border-radius: inherit; padding: 1px;
  background: linear-gradient(150deg,
    color-mix(in srgb, var(--acento) 90%, transparent) 0%, color-mix(in srgb, var(--fg) 22%, transparent) 24%,
    color-mix(in srgb, var(--fg) 7%, transparent) 56%, color-mix(in srgb, var(--acento) 55%, transparent) 100%);
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0); -webkit-mask-composite: xor;
  mask: linear-gradient(#000 0 0) content-box exclude, linear-gradient(#000 0 0);
}
.vidrio::after {                           /* brillo que sigue al puntero (solo con mouse) */
  content: ""; position: absolute; inset: 0; z-index: -1; pointer-events: none; border-radius: inherit;
  background: radial-gradient(26rem circle at var(--mx, 30%) var(--my, 0%), color-mix(in srgb, var(--fg) 5%, transparent), transparent 70%);
  opacity: 0; transition: opacity .9s var(--ease);
}
@media (hover: hover) and (pointer: fine) { .vidrio:hover::after { opacity: 1; } }
.vidrio--xl { --g-r: clamp(1.4rem, 2.4vw, 2.6rem); --g-pad: clamp(1.5rem, 4vw, 4.4rem); }
.vidrio--capsula { border-radius: var(--r-boton); }
@supports not ((backdrop-filter: blur(1px)) or (-webkit-backdrop-filter: blur(1px))) { .vidrio { --g-a: 94%; } }
@media (prefers-reduced-transparency: reduce) { .vidrio { --g-a: 96%; -webkit-backdrop-filter: none; backdrop-filter: none; } }
@media (forced-colors: active) {
  .vidrio { background: Canvas; border: 1px solid CanvasText; -webkit-backdrop-filter: none; backdrop-filter: none; box-shadow: none; }
  .vidrio::before, .vidrio::after { display: none; }
}

/* ---------- Capas vivas ----------
   .capa-croma: canvas con el recorte en WebGL (solo funciona servido por http/https).
   .capa-luz: video sobre negro puro que se suma con «screen» (niebla, polvo, chispas, luciérnagas). */
.capa-croma { position: absolute; z-index: 2; pointer-events: none; aspect-ratio: 16 / 9; }
.capa-croma.muerta { display: none; }
.capa-luz { position: absolute; inset: 0; width: 100%; height: 100%; z-index: 1; pointer-events: none; mix-blend-mode: screen; opacity: .6; }

/* ---------- Píldoras: imágenes diminutas dentro del texto ---------- */
.pildora {
  display: inline-block; vertical-align: middle; width: 2.3em; height: .92em; margin: -.1em .12em 0;
  border-radius: 999px; overflow: hidden; transform: translateY(-.04em);
}
.pildora img { width: 100%; height: 100%; object-fit: cover; }

/* ---------- Estados (día/noche, antes/después, verano/invierno…) ---------- */
.estados {
  position: absolute; right: var(--gutter); top: calc(var(--nav-h) + 1rem); z-index: 3;
  display: inline-flex; padding: 4px; border-radius: var(--r-boton);
  /* mismo tinte que el vidrio: legible sobre cualquier cuadro del video */
  background: color-mix(in srgb, color-mix(in oklab, var(--bg) var(--g-deep, 82%), var(--g-to, #000)) var(--g-a, 70%), transparent);
  -webkit-backdrop-filter: var(--g-filter); backdrop-filter: var(--g-filter);
  border: 1px solid color-mix(in srgb, var(--fg) 22%, transparent);
}
.estados button {
  position: relative; z-index: 1; min-height: 40px; padding: .5rem 1.1rem; border: 0; background: none;
  font-size: .85rem; color: var(--fg); transition: color .5s var(--ease);
}
.estados button[aria-pressed="true"] { color: var(--bg); }
.estados__pildora {
  position: absolute; top: 4px; bottom: 4px; left: 4px; border-radius: var(--r-boton); background: var(--fg);
  transition: transform .7s var(--ease), width .7s var(--ease);
}
@media (max-width: 899px) { .estados { top: auto; bottom: calc(var(--legal-h) + 1rem); } }

/* ---------- Umbral (verificación de edad o confirmación de perfil) ---------- */
.umbral {
  position: fixed; inset: 0; z-index: 90; display: grid; place-items: center; overflow: hidden;
  background: var(--bg); color: var(--fg);
}
.umbral[hidden] { display: none; }
.umbral__fondo { position: absolute; inset: 0; width: 100%; height: 100%; }
.umbral__velo { position: absolute; inset: 0; background: radial-gradient(60% 60% at 50% 50%, color-mix(in srgb, var(--bg) 30%, transparent), color-mix(in srgb, var(--bg) 88%, transparent)); }
.umbral__tarjeta { text-align: center; width: min(42rem, calc(100% - var(--gutter) * 2)); margin: var(--gutter) auto; padding-block: clamp(2rem, 5.5vh, 3.6rem); }
.umbral__tarjeta.vidrio { --g-pad: clamp(1.8rem, 4.4vw, 3.6rem); }
.umbral__marca { margin-bottom: clamp(1.2rem, 3vh, 2rem); color: var(--acento); }
.umbral__titulo { font-family: var(--f-display); font-size: clamp(2.4rem, 6.4vw, 5.6rem); line-height: .95; letter-spacing: -.02em; }
.umbral__desc { margin-top: 1rem; color: var(--muted); }
.umbral__acciones { display: flex; gap: .8rem; justify-content: center; flex-wrap: wrap; margin-top: clamp(1.6rem, 4vh, 2.4rem); }
.umbral__no { margin-top: 1.2rem; color: var(--acento); }
.umbral__legal { margin: clamp(1.6rem, 4vh, 2.6rem) auto 0; padding-top: clamp(1.2rem, 3vh, 1.8rem); border-top: 1px solid var(--linea); font-size: .875rem; font-weight: 600; max-width: 38rem; }
@media (max-height: 680px) {
  .umbral__tarjeta { padding-block: 1.3rem; }
  .umbral__marca { margin-bottom: .8rem; }
  .umbral__titulo { font-size: clamp(2.1rem, 6vw, 4.2rem); }
  .umbral__acciones { margin-top: 1.1rem; }
  .umbral__legal { margin-top: 1.1rem; padding-top: .9rem; }
}

/* ---------- Franja legal (advertencias obligatorias del sector) ----------
   Fija, delgada, de vidrio; toma el color de la sección que tiene debajo. Su alto real se publica en --legal-h. */
.franja-legal {
  position: fixed; inset: auto 0 0 0; z-index: 60; display: grid; place-items: center;
  padding: .4rem var(--gutter) calc(.4rem + env(safe-area-inset-bottom));
  background: color-mix(in srgb, var(--lb-bg, var(--bg)) 86%, transparent);
  -webkit-backdrop-filter: blur(14px) saturate(140%); backdrop-filter: blur(14px) saturate(140%);
  color: var(--lb-fg, var(--fg)); border-top: 1px solid color-mix(in srgb, var(--lb-fg, var(--fg)) 12%, transparent);
  font-size: .78rem; line-height: 1.35; letter-spacing: .012em; text-align: center;
  transition: background-color .7s var(--ease), color .7s var(--ease), border-color .7s var(--ease);
}
.franja-legal p { max-width: 72rem; text-wrap: balance; }
.franja-legal strong { font-weight: 500; }
@supports not ((backdrop-filter: blur(1px)) or (-webkit-backdrop-filter: blur(1px))) { .franja-legal { background: var(--lb-bg, var(--bg)); } }
@media (max-width: 899px) { .franja-legal { font-size: .75rem; } }

/* ---------- Aviso de cookies (solo si la analítica usa cookies) ---------- */
.aviso-cookies {
  position: fixed; left: var(--gutter); bottom: calc(var(--legal-h) + 1rem); z-index: 65;
  width: min(30rem, calc(100% - var(--gutter) * 2)); --g-pad: 1.2rem 1.4rem; display: grid; gap: 1rem; font-size: .9rem;
}
.aviso-cookies[hidden] { display: none; }
.aviso-cookies__acciones { display: flex; gap: .6rem; flex-wrap: wrap; }
.aviso-cookies .boton { min-height: 44px; padding: .6rem 1.2rem; }

/* ---------- Formularios ---------- */
.campo { display: grid; gap: .45rem; }
.campo label { font-size: .875rem; color: var(--muted); }
.campo input, .campo textarea, .campo select {
  width: 100%; min-height: 48px; padding: .8rem 1rem; border-radius: var(--r-1);
  background: color-mix(in srgb, var(--fg) 5%, transparent); border: 1px solid var(--linea); color: var(--fg);
  transition: border-color var(--d-2) var(--ease), background-color var(--d-2) var(--ease);
}
.campo textarea { min-height: 8rem; resize: vertical; }
.campo input:hover, .campo textarea:hover { border-color: color-mix(in oklab, var(--fg) 45%, transparent); }
.campo input:focus-visible, .campo textarea:focus-visible { outline: 2px solid var(--acento); outline-offset: 2px; }
.campo [aria-invalid="true"] { border-color: var(--acento); }
.campo__error { font-size: .85rem; color: var(--acento); min-height: 1.2em; }
.consentimiento { display: grid; grid-template-columns: auto 1fr; gap: .7rem; align-items: start; font-size: .875rem; color: var(--muted); }
.consentimiento input { width: 20px; height: 20px; margin-top: .15rem; accent-color: var(--acento); }
.formulario__estado { font-size: .95rem; min-height: 1.5em; }

/* ---------- Preguntas (details/summary: accesible sin JS) ---------- */
.pregunta { border-top: 1px solid var(--linea); }
.pregunta:last-child { border-bottom: 1px solid var(--linea); }
.pregunta summary {
  display: flex; justify-content: space-between; align-items: center; gap: 1.5rem; cursor: pointer; list-style: none;
  padding: 1.4rem 0; font-family: var(--f-display); font-size: clamp(1.25rem, 2vw, 1.75rem); line-height: 1.2;
}
.pregunta summary::-webkit-details-marker { display: none; }
.pregunta summary::after {
  content: ""; flex: none; width: 14px; height: 14px; border-right: 1.5px solid currentColor; border-bottom: 1.5px solid currentColor;
  transform: rotate(45deg) translate(-3px, -3px); transition: transform var(--d-3) var(--ease);
}
.pregunta[open] summary::after { transform: rotate(-135deg) translate(-3px, -3px); }
.pregunta__respuesta { padding: 0 0 1.6rem; max-width: 62ch; color: var(--muted); }

/* ---------- Pie ---------- */
.pie { padding: var(--e-8) 0 calc(var(--legal-h) + 2.5rem); background: var(--bg); }
.pie__rejilla { display: grid; grid-template-columns: minmax(0, 2fr) repeat(2, minmax(0, 1fr)); gap: 2.5rem; }
.pie__marca { display: grid; gap: 1rem; align-content: start; }
.pie__col { font-style: normal; display: grid; gap: .6rem; align-content: start; }
.pie__rotulo { color: var(--acento); }
.pie__legal { margin-top: var(--e-7); padding-top: 1.6rem; border-top: 1px solid var(--linea); display: grid; gap: .8rem; font-size: .875rem; color: var(--muted); }
@media (max-width: 899px) { .pie__rejilla { grid-template-columns: 1fr; } }