/* Material visual real de Fundición AMN proporcionado por el cliente. */
.hero-media {
  background-image: linear-gradient(90deg, rgba(8, 9, 9, .84), rgba(8, 9, 9, .28)), url("media/colada-2.jpeg");
  background-position: center;
}

.hero-media video,
.plant-image video,
.gallery-image video {
  position: absolute;
  inset: 0;
  z-index: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-media::after,
.plant-image::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}

.hero-media::after {
  background: linear-gradient(90deg, rgba(8, 9, 9, .82), rgba(8, 9, 9, .25));
}

.plant-image::after {
  background: linear-gradient(90deg, rgba(8, 9, 9, .76), rgba(8, 9, 9, .16));
}

.gallery-image::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(8, 9, 9, .76), rgba(8, 9, 9, .22));
  pointer-events: none;
}

.gallery-image > div {
  position: relative;
  z-index: 1;
}

.icon-sprite { position: absolute; width: 0; height: 0; overflow: hidden; }

.industry-grid span {
  display: flex;
  align-items: center;
  gap: .8rem;
  transition: color .2s ease, background-color .2s ease;
}

.industry-grid span:hover { color: var(--white); background: rgba(255,255,255,.035); }
.industry-grid b { font: inherit; font-weight: 500; }
.industry-icon { width: 1.55rem; height: 1.55rem; flex: 0 0 auto; fill: none; stroke: var(--red); stroke-width: 1.55; stroke-linecap: round; stroke-linejoin: round; }

.company-summary,
.capacity-summary {
  max-width: 760px;
  margin: 3rem 0 0;
  padding-left: 1.2rem;
  border-left: 2px solid var(--red);
  color: #5d6468;
  line-height: 1.65;
}

.engineering-extra {
  margin: 1rem 0 0;
  color: #60666a;
  font-size: .88rem;
  line-height: 1.6;
}

.hadfield {
  display: grid;
  grid-template-columns: 1.15fr .85fr;
  gap: 4rem;
  margin-top: 4rem;
  padding-top: 2.2rem;
  border-top: 1px solid var(--line);
}

.hadfield h3 {
  font-size: clamp(1.8rem, 3vw, 3rem);
  line-height: 1;
}

.hadfield > div > p:not(.eyebrow) {
  max-width: 620px;
  color: #c4c7c8;
  line-height: 1.65;
}

.hadfield-facts {
  display: grid;
  align-content: start;
  border-left: 1px solid var(--line);
}

.hadfield-facts p {
  display: grid;
  gap: .4rem;
  margin: 0;
  padding: 1rem 0 1rem 1.4rem;
  border-bottom: 1px solid var(--line);
}

.hadfield-facts strong {
  color: var(--white);
  font: 600 1.05rem "Space Grotesk";
  letter-spacing: -.03em;
}

.hadfield-facts span { color: var(--steel); font-size: .84rem; line-height: 1.45; }
.hadfield-link { margin-top: 1.25rem; }

.process-intro {
  max-width: 640px;
  margin: 2rem 0 -1rem;
  color: #60666a;
  line-height: 1.65;
}

.process-detail-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.4rem;
  margin-top: 3rem;
}

.process-detail-grid article {
  padding: 1.7rem;
  border: 1px solid #b9babc;
}

.process-detail-grid h3 {
  font-size: clamp(1.8rem, 3vw, 2.7rem);
  line-height: .98;
}

.process-detail-grid > article > p:not(.eyebrow) {
  color: #60666a;
  line-height: 1.65;
}

.process-methods {
  display: flex;
  flex-wrap: wrap;
  gap: .55rem;
  margin-top: 1.4rem;
}

.process-methods span {
  padding: .55rem .7rem;
  border: 1px solid #b9babc;
  color: #34393c;
  font: 600 .68rem "Space Grotesk";
  letter-spacing: .06em;
  text-transform: uppercase;
}

.process-detail-note { font-size: .9rem; }

.quality-grid { grid-template-columns: repeat(4, 1fr); }

.quality-grid figure {
  display: grid;
  place-items: center;
  height: 165px;
  margin: 0 0 1rem;
  overflow: hidden;
  background: #f2f2f0;
}

.quality-grid figure img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  transform: scale(1.3);
}

.quality-grid article:nth-child(1) figure img { transform: scale(1.13); }
.quality-grid article:nth-child(2) figure img { transform: scale(1.38); }
.quality-grid article:nth-child(3) figure img { transform: scale(1.5); }
.quality-grid article:nth-child(4) figure img { transform: scale(1.18); }

.quality-assurance {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  margin: 0 0 3rem;
  background: #b9babc;
}

.quality-assurance article { padding: 1.5rem; background: var(--white); }
.quality-assurance h3 { font-size: 1.55rem; line-height: 1; }
.quality-assurance p { margin: 1rem 0 0; color: #60666a; font-size: .9rem; line-height: 1.6; }

.manganese-detail { overflow: hidden; }

.manganese-heading,
.manganese-composition,
.manganese-use-grid {
  display: grid;
  grid-template-columns: 1.1fr .9fr;
  gap: 4rem;
}

.manganese-heading { align-items: end; }
.manganese-heading h2 { max-width: 760px; }
.manganese-lead { margin: 0; color: #c4c7c8; font-size: 1.05rem; line-height: 1.7; }

.manganese-composition {
  margin-top: 4rem;
  padding-top: 2.2rem;
  border-top: 1px solid var(--line);
}

.manganese-composition h3,
.manganese-use-grid h3 {
  margin: .6rem 0 1.2rem;
  color: var(--white);
  font-size: clamp(1.65rem, 2.8vw, 2.6rem);
  line-height: 1.02;
}

.manganese-composition article > p:not(.eyebrow),
.manganese-use-grid article > p:not(.eyebrow) {
  max-width: 670px;
  color: #c4c7c8;
  line-height: 1.68;
}

.manganese-facts {
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-content: start;
  margin: 0;
  border-top: 1px solid var(--line);
}

.manganese-facts div {
  padding: 1.15rem 1rem 1.15rem 0;
  border-bottom: 1px solid var(--line);
}

.manganese-facts div:nth-child(odd) { border-right: 1px solid var(--line); padding-right: 1rem; }
.manganese-facts div:nth-child(even) { padding-left: 1rem; }
.manganese-facts dt { color: var(--white); font: 600 1.2rem "Space Grotesk"; letter-spacing: -.03em; }
.manganese-facts dd { margin: .35rem 0 0; color: var(--steel); font-size: .82rem; line-height: 1.45; }

.manganese-table-wrap {
  margin-top: 3rem;
  padding-top: 2.2rem;
  border-top: 1px solid var(--line);
}

.manganese-table-scroll {
  overflow-x: auto;
  border: 1px solid var(--line);
  -webkit-overflow-scrolling: touch;
}

.manganese-table {
  width: 100%;
  min-width: 720px;
  border-collapse: collapse;
  color: var(--white);
  font-size: .83rem;
  text-align: left;
}

.manganese-table caption {
  padding: 1rem 1.15rem;
  color: var(--steel);
  background: rgba(255, 255, 255, .035);
  font: 600 .7rem "Space Grotesk";
  letter-spacing: .08em;
  text-align: left;
  text-transform: uppercase;
}

.manganese-table th,
.manganese-table td {
  padding: .86rem .9rem;
  border-top: 1px solid var(--line);
  white-space: nowrap;
}

.manganese-table thead th {
  color: var(--steel);
  font: 600 .72rem "Space Grotesk";
  letter-spacing: .08em;
  text-transform: uppercase;
}

.manganese-table tbody th {
  color: var(--white);
  font: 600 .84rem "Space Grotesk";
}

.manganese-table .na { color: #72787b; }

.manganese-use-grid {
  margin-top: 3rem;
  gap: 1px;
  background: var(--line);
}

.manganese-use-grid article { padding: 1.75rem; background: #161819; }

.engineering-model { display: grid; gap: 1.5rem; }

.cad-viewer {
  position: relative;
  min-height: 390px;
  overflow: hidden;
  background:
    radial-gradient(circle at 70% 18%, rgba(198, 40, 40, .18), transparent 42%),
    linear-gradient(145deg, #1f2224, #0f1112);
  border: 1px solid rgba(21, 23, 25, .24);
  touch-action: none;
}

.cad-viewer::before {
  content: "MODELO 3D · AMN";
  position: absolute;
  top: 1rem;
  left: 1rem;
  z-index: 1;
  color: rgba(242, 242, 240, .68);
  font: 600 .63rem "Space Grotesk";
  letter-spacing: .15em;
}

.cad-viewer canvas { position: absolute; inset: 0; display: block; width: 100%; height: 100%; }
.cad-loading { position: absolute; inset: 0; display: grid; place-items: center; margin: 0; color: var(--white); font: 600 .72rem "Space Grotesk"; letter-spacing: .1em; text-transform: uppercase; }
.cad-loading[hidden] { display: none; }
.cad-hint { position: absolute; right: 1rem; bottom: 1rem; margin: 0; color: rgba(242, 242, 240, .65); font-size: .72rem; }
.cad-viewer.has-error canvas, .cad-viewer.has-error .cad-hint { opacity: .25; }

/* El logo se muestra tal cual fue entregado; no se reconstruye con tipografía. */
.brand-logo {
  display: block;
  width: 108px;
  height: 64px;
  overflow: hidden;
  background: transparent;
}

.brand-logo img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.footer-brand.brand-logo {
  width: 156px;
  height: 110px;
}

.whatsapp { color: #fff; }
.whatsapp svg { display: block; width: 27px; height: 27px; fill: currentColor; }

.plant-map-link {
  display: inline-flex;
  align-items: center;
  gap: .6rem;
  margin-top: 2rem;
  padding: .8rem 1rem;
  border: 1px solid rgba(255, 255, 255, .58);
  color: var(--white);
  font: 600 .72rem "Space Grotesk";
  letter-spacing: .1em;
  text-transform: uppercase;
  transition: background-color .2s ease, border-color .2s ease;
}

.plant-map-link:hover { background: rgba(255, 255, 255, .12); border-color: var(--white); }
.footer-map-link { display: inline-block; margin-top: .35rem; color: var(--white); font-size: .78rem; text-decoration: underline; text-underline-offset: .25em; }

@media (max-width: 760px) {
  .quality-grid { grid-template-columns: repeat(2, 1fr); }
  .hadfield,
  .process-detail-grid,
  .manganese-heading,
  .manganese-composition,
  .manganese-use-grid { grid-template-columns: 1fr; gap: 1.5rem; }
  .manganese-composition { margin-top: 2.75rem; }
  .manganese-table-wrap { margin-top: 2.5rem; }
  .manganese-table th,
  .manganese-table td { padding: .76rem .8rem; }
  .hadfield-facts { border-left: 0; border-top: 1px solid var(--line); }
  .hadfield-facts p { padding-left: 0; }
  .quality-assurance { grid-template-columns: 1fr; }
  .brand-logo {
    width: 82px;
    height: 52px;
  }

  .quote-form { margin-top: 2.5rem; padding: 1.25rem; }
  .form-grid { grid-template-columns: 1fr; }
  .file-field { grid-template-columns: 1fr; }
  .file-field input { max-width: 100%; }
  .social-links { grid-column: 1 / -1; }
  .cad-viewer { min-height: 330px; }
  .cad-hint { left: 1rem; right: auto; }
  .quality-grid figure { height: 165px; }
}

.plant-image {
  background-image: linear-gradient(90deg, rgba(8, 9, 9, .78), rgba(8, 9, 9, .18)), url("media/planta-aerea.jpeg");
  background-position: center;
}

.gallery-image {
  background-image: linear-gradient(90deg, rgba(8, 9, 9, .76), rgba(8, 9, 9, .22)), url("media/colada-1.jpeg");
  background-position: center;
}

.quote-form {
  display: grid;
  gap: 1.1rem;
  max-width: 850px;
  margin: 4rem auto 0;
  padding: 2.25rem;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, .025);
}

.form-intro h3 {
  font-family: "Space Grotesk";
  font-size: clamp(1.8rem, 3vw, 2.8rem);
  letter-spacing: -.06em;
  margin: 0;
}

.form-intro > p:last-child {
  max-width: 520px;
  margin-bottom: 0;
  color: var(--steel);
  line-height: 1.55;
}

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.quote-form label {
  display: grid;
  gap: .55rem;
  color: var(--white);
  font: 600 .74rem "Space Grotesk";
  letter-spacing: .08em;
  text-transform: uppercase;
}

.quote-form em { color: var(--red); font-style: normal; }

.quote-form input,
.quote-form textarea {
  width: 100%;
  color: var(--white);
  background: transparent;
  border: 1px solid rgba(242, 242, 240, .35);
  border-radius: 0;
  padding: .9rem 1rem;
  font: 400 1rem Inter, sans-serif;
  letter-spacing: normal;
  text-transform: none;
}

.quote-form textarea { resize: vertical; min-height: 132px; }
.quote-form input:focus,
.quote-form textarea:focus { outline: 2px solid var(--red); outline-offset: 2px; }
.quote-form ::placeholder { color: #a4a8aa; opacity: 1; }

.file-field {
  grid-template-columns: 1fr auto;
  align-items: center;
  border: 1px dashed rgba(242, 242, 240, .4);
  padding: 1rem;
}

.file-field span { display: grid; gap: .35rem; }
.file-field small { color: var(--steel); font: 400 .74rem Inter, sans-serif; letter-spacing: normal; text-transform: none; }
.file-field input { width: auto; max-width: 170px; border: 0; padding: 0; font-size: .75rem; }
.honeypot { position: absolute; left: -10000px; }
.form-status { min-height: 1.4em; margin: 0; font-size: .9rem; line-height: 1.45; }
.form-status.success { color: #b9dfc2; }
.form-status.error { color: #f2a2a2; }

.social-links {
  display: flex;
  flex-direction: column;
  gap: .65rem;
  align-items: flex-start;
  color: var(--steel);
  font: 600 .72rem "Space Grotesk";
  letter-spacing: .12em;
  text-transform: uppercase;
}

@media (min-width: 761px) and (prefers-reduced-motion: no-preference) {
  .plant-image {
    background-size: 107%;
    transition: background-position .45s ease-out, background-size .45s ease-out;
  }

  .plant-image video {
    transform: scale(1.05);
    transition: transform .45s ease-out;
  }

  .plant:hover .plant-image {
    background-position: 53% 46%;
    background-size: 112%;
  }

  .plant:hover .plant-image video {
    transform: scale(1.11) translate(-.8%, .7%);
  }
}