/* ============================================================================
   INGEMET · FICHA DE PRODUCTO
   ========================================================================== */

/* --- Portada de la ficha --------------------------------------------------- */

/* La fotografía de cada familia continúa bajo toda la ficha como una capa
   ambiental. La lectura técnica permanece prioritaria gracias a los velos
   oscuros y a los paneles existentes. */
body.product-page {
  position: relative;
  background: var(--ink);
}

body.product-page::before {
  content: "";
  position: fixed;
  inset: -5%;
  z-index: 0;
  pointer-events: none;
  background-image:
    linear-gradient(to right, rgba(6, 9, 12, 0.84) 0%, rgba(6, 9, 12, 0.52) 58%, rgba(6, 9, 12, 0.68) 100%),
    linear-gradient(to bottom, rgba(6, 9, 12, 0.48) 0%, rgba(6, 9, 12, 0.72) 54%, rgba(6, 9, 12, 0.88) 100%),
    var(--product-backdrop);
  background-size: cover;
  background-position: center 68%;
  filter: saturate(0.82) contrast(1.08);
  opacity: 0.78;
  transform: scale(1.02);
  animation: product-backdrop-drift 28s var(--ease-in-out) infinite alternate;
}

body.product-page > main,
body.product-page > .site-footer {
  position: relative;
  z-index: 1;
}

body.product-page .site-footer {
  background: color-mix(in srgb, var(--ink-2) 90%, transparent);
  backdrop-filter: blur(12px) saturate(120%);
  -webkit-backdrop-filter: blur(12px) saturate(120%);
}

@keyframes product-backdrop-drift {
  from {
    background-position: 50% 68%;
    transform: scale(1.02) translate3d(0, 0, 0);
  }

  to {
    background-position: 52% 62%;
    transform: scale(1.07) translate3d(-0.7%, -0.6%, 0);
  }
}

.phero {
  position: relative;
  z-index: 1;
  min-height: min(88svh, 820px);
  display: flex;
  align-items: flex-end;
  padding-block: calc(var(--header-h) + var(--s-8)) var(--s-8);
  overflow: hidden;
}

.phero__media {
  position: absolute;
  inset: 0;
  z-index: -1;
}

.phero__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  /* Las imágenes de familia ubican el material en la zona baja; llevar el
     encuadre hacia allí evita heroes visualmente vacíos. */
  object-position: center 67%;
  opacity: 0;
  transform: scale(1.08);
  transition: opacity 1.2s var(--ease-out), transform 2.6s var(--ease-out);
}

.is-ready .phero__media img {
  opacity: 1;
  transform: scale(1);
}

.phero__media::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(to top, var(--ink) 4%, rgba(6, 9, 12, 0.62) 42%, rgba(6, 9, 12, 0.22) 100%),
    linear-gradient(to right, rgba(6, 9, 12, 0.86) 0%, rgba(6, 9, 12, 0.1) 62%);
}

/* Reflejo lento sobre la portada: suma profundidad sin competir con el texto. */
.phero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background: linear-gradient(112deg, transparent 35%, rgba(143, 216, 232, 0.11) 49%, transparent 62%);
  background-size: 220% 100%;
  background-position: 120% 0;
  animation: product-hero-glint 12s var(--ease-in-out) infinite;
}

.phero > .wrap {
  position: relative;
  z-index: 1;
}

@keyframes product-hero-glint {
  0%,
  26% {
    background-position: 120% 0;
  }

  72%,
  100% {
    background-position: -120% 0;
  }
}

.crumbs {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--s-2);
  margin-block-end: var(--s-6);
  font-family: var(--font-mono);
  font-size: var(--t-mono);
  letter-spacing: var(--track-mono);
  text-transform: uppercase;
  color: var(--fog-dim);
}

.crumbs a {
  padding-block: 5px;
  transition: color var(--d-fast) var(--ease-out);
}

.crumbs a:hover {
  color: var(--teal);
}

.crumbs span[aria-current] {
  color: var(--chalk);
}

.phero__head {
  display: flex;
  align-items: flex-start;
  gap: var(--s-5);
}

/* Ejes de referencia tras el glifo: la misma capa de anotación técnica del
   hero de la portada, aplicada una sola vez por ficha. */
.phero__mark {
  position: relative;
  flex-shrink: 0;
  display: grid;
  place-items: center;
  margin-block-start: 8px;
}

.phero__axes {
  position: absolute;
  inset: -26%;
  width: auto;
  height: auto;
  color: var(--amber);
  opacity: 0.75;
  pointer-events: none;
}

.phero__axes line {
  fill: none;
  stroke: currentColor;
  stroke-width: 1;
  stroke-dasharray: 5 4;
  vector-effect: non-scaling-stroke;
}

.phero__glyph {
  flex-shrink: 0;
  width: clamp(48px, 5vw, 72px);
  height: clamp(48px, 5vw, 72px);
  margin-block-start: 8px;
  color: var(--teal);
}

.phero h1 {
  font-size: var(--t-4xl);
  font-weight: 600;
  line-height: var(--lh-tight);
  letter-spacing: -0.042em;
}

.phero__tagline {
  margin-block-start: var(--s-4);
  max-width: 40ch;
  font-size: var(--t-lg);
  line-height: var(--lh-relaxed);
  color: var(--fog);
}

.phero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--s-6);
  margin-block-start: var(--s-7);
  padding-block-start: var(--s-5);
  border-block-start: 1px solid var(--line);
}

.phero__meta div {
  min-width: 120px;
}

.phero__meta dt {
  font-family: var(--font-mono);
  font-size: var(--t-mono);
  letter-spacing: var(--track-mono);
  text-transform: uppercase;
  color: var(--fog-dim);
  margin-block-end: 5px;
}

.phero__meta dd {
  font-size: var(--t-sm);
  color: var(--chalk);
  font-weight: 500;
}

@media (max-width: 640px) {
  .phero {
    min-height: auto;
    padding-block: calc(var(--header-h) + var(--s-6)) var(--s-7);
  }

  .phero__mark {
    display: none;
  }
}

/* --- Barra de la ficha -----------------------------------------------------
   Aparece al bajar. Mantiene el nombre del producto y la acción a la vista. */

.pbar {
  position: sticky;
  inset-block-start: var(--header-h);
  z-index: 90;
  display: flex;
  align-items: center;
  gap: var(--s-5);
  padding-block: 12px;
  background: color-mix(in srgb, var(--ink) 82%, transparent);
  backdrop-filter: blur(16px) saturate(140%);
  -webkit-backdrop-filter: blur(16px) saturate(140%);
  border-block-end: 1px solid var(--line);
}

.pbar__name {
  display: flex;
  align-items: center;
  gap: var(--s-3);
  font-size: var(--t-sm);
  font-weight: 600;
  white-space: nowrap;
}

.pbar__name .glyph {
  width: 20px;
  height: 20px;
}

.pbar__links {
  display: flex;
  gap: var(--s-1);
  margin-inline-start: auto;
  overflow-x: auto;
  scrollbar-width: none;
}

.pbar__links::-webkit-scrollbar {
  display: none;
}

.pbar__links a {
  padding: 10px 13px;
  border-radius: var(--r-sm);
  font-family: var(--font-mono);
  font-size: var(--t-mono);
  letter-spacing: var(--track-mono);
  text-transform: uppercase;
  color: var(--fog-dim);
  white-space: nowrap;
  transition: color var(--d-fast) var(--ease-out), background var(--d-fast) var(--ease-out);
}

.pbar__links a:hover,
.pbar__links a.is-active {
  color: var(--chalk);
  background: var(--steel);
}

.pbar .btn {
  flex-shrink: 0;
  padding: 9px 16px;
}

@media (max-width: 860px) {
  .pbar__links {
    display: none;
  }

  .pbar .btn {
    margin-inline-start: auto;
  }
}

/* --- Bloques de contenido -------------------------------------------------- */

.pblock {
  position: relative;
  z-index: 1;
  padding-block: var(--section-y);
  scroll-margin-top: calc(var(--header-h) + 70px);
}

.pblock + .pblock {
  border-block-start: 1px solid var(--line-soft);
}

.pblock__head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--s-5);
  margin-block-end: var(--s-7);
}

.pblock__head h2 {
  font-size: var(--t-2xl);
  font-weight: 600;
}

/* Introducción a dos columnas: texto y características. */
.pintro {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr);
  gap: var(--s-8);
  align-items: start;
}

.pintro__text p {
  font-size: var(--t-lg);
  line-height: var(--lh-relaxed);
  color: var(--fog);
}

.pintro__text p + p {
  margin-block-start: var(--s-4);
}

.pintro__text .first-line {
  color: var(--chalk);
}

.pfeatures {
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  overflow: hidden;
}

.pfeatures div {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--s-4);
  padding: 16px 20px;
  background: var(--graphite);
}

.pfeatures dt {
  font-family: var(--font-mono);
  font-size: var(--t-mono);
  letter-spacing: var(--track-mono);
  text-transform: uppercase;
  color: var(--fog-dim);
  white-space: nowrap;
}

.pfeatures dd {
  font-size: var(--t-sm);
  color: var(--chalk);
  text-align: end;
}

@media (max-width: 900px) {
  .pintro {
    grid-template-columns: 1fr;
    gap: var(--s-6);
  }
}

/* --- Galería ---------------------------------------------------------------
   Tira horizontal con ajuste por scroll. La fotografía llega hasta el borde
   de la pantalla para que se lea como material, no como miniatura.         */

.gallery {
  display: flex;
  gap: var(--s-4);
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  scroll-padding-inline-start: var(--gutter);
  padding-block-end: var(--s-4);
  padding-inline: var(--gutter);
  margin-inline: calc(var(--gutter) * -1);
  scrollbar-width: thin;
  scrollbar-color: var(--steel-2) transparent;
}

.gallery::-webkit-scrollbar {
  height: 3px;
}

.gallery::-webkit-scrollbar-thumb {
  background: var(--steel-2);
  border-radius: 2px;
}

.gshot {
  position: relative;
  flex: 0 0 min(72%, 640px);
  scroll-snap-align: start;
  border-radius: var(--r-md);
  overflow: hidden;
  border: 1px solid var(--line);
  background: #05080a;
}

.gshot img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  transition: transform 1s var(--ease-out);
}

.gshot:hover img {
  transform: scale(1.04);
}

.gshot figcaption {
  position: absolute;
  inset-block-end: 0;
  inset-inline: 0;
  padding: var(--s-6) var(--s-4) var(--s-4);
  background: linear-gradient(to top, rgba(6, 9, 12, 0.92), transparent);
  font-family: var(--font-mono);
  font-size: var(--t-mono);
  letter-spacing: var(--track-mono);
  text-transform: uppercase;
  color: var(--fog);
}

.gallery__hint {
  display: flex;
  align-items: center;
  gap: var(--s-2);
  margin-block-start: var(--s-3);
  font-family: var(--font-mono);
  font-size: var(--t-mono);
  letter-spacing: var(--track-mono);
  text-transform: uppercase;
  color: var(--fog-dim);
}

/* --- Variantes y aplicaciones ---------------------------------------------- */

.pcols {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--s-8);
  align-items: start;
}

.chiprow {
  display: flex;
  flex-wrap: wrap;
  gap: var(--s-3);
  margin-block-start: var(--s-5);
}

.applist {
  display: grid;
  gap: var(--s-3);
  margin-block-start: var(--s-5);
}

.applist li {
  display: flex;
  align-items: flex-start;
  gap: var(--s-3);
  padding-block-end: var(--s-3);
  border-block-end: 1px solid var(--line-soft);
  font-size: var(--t-sm);
  color: var(--fog);
}

.applist li::before {
  content: "";
  flex-shrink: 0;
  width: 6px;
  height: 6px;
  margin-block-start: 7px;
  border: 1px solid var(--teal);
  border-radius: 1px;
  transform: rotate(45deg);
}

@media (max-width: 860px) {
  .pcols {
    grid-template-columns: 1fr;
    gap: var(--s-7);
  }
}

/* --- Normas y calidades ----------------------------------------------------- */

.norms {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: var(--s-4);
  margin-block-start: var(--s-5);
}

.norm {
  padding: var(--s-5);
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: var(--graphite);
  transition: border-color var(--d-base) var(--ease-out);
}

.norm:hover {
  border-color: color-mix(in srgb, var(--amber) 40%, transparent);
}

.norm code {
  display: block;
  font-family: var(--font-mono);
  font-size: var(--t-base);
  font-weight: 500;
  letter-spacing: 0.02em;
  color: var(--amber);
  margin-block-end: var(--s-2);
}

.norm p {
  font-size: var(--t-sm);
  color: var(--fog);
  line-height: 1.55;
}

.grades {
  display: flex;
  flex-wrap: wrap;
  gap: var(--s-2);
  margin-block-start: var(--s-5);
}

.grade {
  padding: 7px 13px;
  border: 1px solid var(--line);
  border-radius: var(--r-sm);
  background: var(--ink-2);
  font-family: var(--font-mono);
  font-size: var(--t-xs);
  letter-spacing: 0.06em;
  color: var(--fog);
}

.disclaimer {
  display: flex;
  gap: var(--s-3);
  margin-block-start: var(--s-6);
  padding: var(--s-4) var(--s-5);
  border: 1px solid var(--line);
  border-inline-start: 2px solid var(--amber);
  border-radius: var(--r-sm);
  background: var(--ink-2);
  font-size: var(--t-sm);
  color: var(--fog);
  line-height: var(--lh-relaxed);
  max-width: 80ch;
}

/* --- Cierre de la ficha ------------------------------------------------------ */

.pcta {
  position: relative;
  padding: clamp(2rem, 1.2rem + 4vw, 4.5rem);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  background:
    radial-gradient(90% 140% at 0% 100%, color-mix(in srgb, var(--teal) 11%, transparent), transparent 60%),
    var(--graphite);
  overflow: hidden;
}

.pcta h2 {
  font-size: var(--t-3xl);
  max-width: 18ch;
  margin-block: var(--s-4) var(--s-5);
}

.pcta p {
  max-width: 52ch;
  color: var(--fog);
  line-height: var(--lh-relaxed);
}

.pcta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--s-3);
  margin-block-start: var(--s-6);
}

/* --- Relacionados ------------------------------------------------------------ */

.related {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--s-5);
}

@media (max-width: 900px) {
  .related {
    grid-template-columns: 1fr;
  }
}

/* --- Paso al producto siguiente ---------------------------------------------- */

.pnext {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--s-4);
  padding-block: var(--s-6);
  border-block-start: 1px solid var(--line);
}

.pnext a {
  display: flex;
  align-items: center;
  gap: var(--s-3);
  padding-block: 8px;
  font-size: var(--t-sm);
  color: var(--fog);
  transition: color var(--d-fast) var(--ease-out);
}

.pnext a:hover {
  color: var(--teal);
}

.pnext a span {
  font-family: var(--font-mono);
  font-size: var(--t-mono);
  letter-spacing: var(--track-mono);
  text-transform: uppercase;
  color: var(--fog-dim);
}

/* --- Ajustes de la ficha con contenido generado ------------------------------
   Clases que reemplazan estilos que antes iban en línea desde el JavaScript. */

.pbar__inner {
  display: flex;
  align-items: center;
  gap: var(--s-5);
}

/* La barra entra recién cuando la portada sale de cuadro. */
.pbar {
  opacity: 0;
  pointer-events: none;
  transition: opacity 280ms var(--ease-out);
}

.pbar.is-on {
  opacity: 1;
  pointer-events: auto;
}

.pintro__text .tag + .first-line {
  margin-block-start: var(--s-4);
}

.pcols__note {
  margin-block-start: var(--s-4);
  max-width: 44ch;
  color: var(--fog);
  line-height: var(--lh-relaxed);
}

/* --- Configurador técnico de cotización ---------------------------------- */

.quote-config {
  padding: clamp(1.5rem, 1rem + 2vw, 2.5rem);
  border: 1px solid var(--line-strong);
  background: color-mix(in srgb, var(--ink-2) 88%, transparent);
  box-shadow: inset 0 1px 0 color-mix(in srgb, var(--chalk) 5%, transparent);
}

.quote-config__head {
  max-width: 62ch;
}

.quote-config__head h2 {
  margin-block: var(--s-3);
}

.quote-config__head p,
.quote-config__foot p {
  color: var(--fog);
  line-height: var(--lh-relaxed);
}

.quote-config__fields {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--s-4);
  margin-block: var(--s-6);
}

.quote-field {
  display: grid;
  gap: var(--s-2);
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--fog);
}

.quote-field--identity {
  border-bottom: 1px solid var(--line);
  padding-bottom: var(--s-3);
}

.quote-field select,
.quote-field input {
  width: 100%;
  min-height: 48px;
  padding: 0.75rem 0.85rem;
  border: 1px solid var(--line-strong);
  border-radius: 0;
  background: var(--ink);
  color: var(--chalk);
  font: 400 0.875rem/1.3 var(--font-sans);
  letter-spacing: normal;
  text-transform: none;
  transition: border-color var(--d-fast) var(--ease-out), background var(--d-fast) var(--ease-out);
}

.quote-field select:hover,
.quote-field input:hover {
  border-color: var(--fog-dim);
}

.quote-field select:focus,
.quote-field input:focus {
  outline: none;
  border-color: var(--teal);
  background: color-mix(in srgb, var(--ink) 88%, var(--teal));
}

.quote-config__foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--s-5);
  padding-top: var(--s-5);
  border-top: 1px solid var(--line);
}

.quote-config__foot p {
  max-width: 70ch;
  margin: 0;
  font-size: var(--t-sm);
}

@media (max-width: 860px) {
  .quote-config__fields { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 560px) {
  .quote-config__fields { grid-template-columns: 1fr; }
  .quote-config__foot { align-items: flex-start; flex-direction: column; }
}

.norms__label {
  margin-block-start: var(--s-7);
}

/* Sin JavaScript la barra no puede aparecer sola: se deja visible. */
.no-js .pbar {
  opacity: 1;
  pointer-events: auto;
}

@media (prefers-reduced-motion: reduce) {
  body.product-page::before,
  .phero::before {
    animation: none;
  }
}