/* ==============================================================
   FIX v1.6 — Estilos específicos para páginas de LANDING
   (estanques, piezas especiales, ductos, etc.)
   ============================================================== */

/* PAGE HEAD - hero para landings internas */
.page-head {
  background: linear-gradient(135deg, var(--gf-green-900) 0%, var(--gf-navy-900) 60%, var(--gf-navy-800) 100%);
  color: #fff;
  padding: 96px 0 72px;
  position: relative;
  overflow: hidden;
}
.page-head::before {
  content: '';
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  opacity: 0.25;
  z-index: 0;
}
.page-head.has-bg::before { opacity: 0.35; }
.page-head__inner {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1.4fr 0.9fr;
  gap: 48px;
  align-items: center;
}
@media (max-width: 900px) {
  .page-head { padding: 64px 0 48px; }
  .page-head__inner { grid-template-columns: 1fr; }
}
.breadcrumb {
  display: flex;
  gap: 8px;
  color: rgba(255,255,255,0.7);
  font-size: 13px;
  font-family: var(--gf-font-display);
  margin-bottom: 20px;
}
.breadcrumb a {
  color: rgba(255,255,255,0.7);
  text-decoration: none;
}
.breadcrumb a:hover { color: var(--gf-gold-500); }
.breadcrumb span { opacity: 0.5; }

.page-head h1 {
  font-family: var(--gf-font-display);
  font-size: clamp(32px, 4.5vw, 56px);
  font-weight: 800;
  color: #fff;
  margin: 14px 0;
  letter-spacing: -0.025em;
  line-height: 1.05;
}
.page-head p {
  font-size: 18px;
  color: rgba(255,255,255,0.82);
  margin: 18px 0 24px;
  line-height: 1.6;
  max-width: 56ch;
}
.page-head__actions {
  display: flex;
  gap: 12px;
  margin-top: 24px;
  flex-wrap: wrap;
}
.page-head__visual {
  aspect-ratio: 4/5;
  border-radius: 18px;
  overflow: hidden;
  box-shadow: 0 30px 60px rgba(0,0,0,0.4);
  background-size: cover;
  background-position: center;
}
@media (max-width: 900px) {
  .page-head__visual { aspect-ratio: 16/10; }
}

/* PAGE NAV - navegación interna con anchor links */
.page-nav {
  background: #fff;
  border-bottom: 1px solid var(--gf-border);
  padding: 12px 0;
  position: sticky;
  top: 0;
  z-index: 50;
}
.page-nav__inner {
  display: flex;
  gap: 12px;
  overflow-x: auto;
  scrollbar-width: none;
}
.page-nav__inner::-webkit-scrollbar { display: none; }
.page-nav__link {
  color: var(--gf-fg-muted);
  text-decoration: none;
  font-family: var(--gf-font-display);
  font-weight: 600;
  font-size: 14px;
  padding: 8px 16px;
  border-radius: 8px;
  white-space: nowrap;
  transition: background 0.15s ease, color 0.15s ease;
}
.page-nav__link:hover { background: var(--gf-green-50); color: var(--gf-primary); }
.page-nav__link.is-active { background: var(--gf-primary); color: #fff; }

/* APPLICATIONS GRID - íconos + labels */
.applications-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 16px;
  margin-top: 32px;
}
@media (max-width: 900px) { .applications-grid { grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 480px) { .applications-grid { grid-template-columns: repeat(2, 1fr); } }
.application-tile {
  background: #fff;
  border: 1px solid var(--gf-border);
  border-radius: 14px;
  padding: 20px 12px;
  text-align: center;
  text-decoration: none;
  color: inherit;
  transition: border-color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  cursor: pointer;
}
.application-tile:hover {
  border-color: var(--gf-primary);
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(0,0,0,0.06);
}
.application-tile__icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: var(--gf-green-50);
  color: var(--gf-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
}
.application-tile__label {
  font-family: var(--gf-font-display);
  font-weight: 600;
  font-size: 13px;
  color: var(--gf-fg);
  line-height: 1.3;
}

/* SPEC TABLE */
.spec-table {
  width: 100%;
  border-collapse: collapse;
  background: #fff;
  border-radius: 14px;
  overflow: hidden;
  border: 1px solid var(--gf-border);
  margin-top: 32px;
  font-family: var(--gf-font-mono);
  font-size: 14px;
}
.spec-table th {
  background: var(--gf-navy-900);
  color: #fff;
  padding: 14px 18px;
  text-align: left;
  font-weight: 700;
  font-size: 12px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  font-family: var(--gf-font-display);
}
.spec-table td {
  padding: 14px 18px;
  border-top: 1px solid var(--gf-border);
  color: var(--gf-fg);
}
.spec-table tbody tr:nth-child(even) td { background: var(--gf-bg-alt); }
.spec-table tbody tr:hover td { background: var(--gf-green-50); }
.spec-table td strong {
  font-family: var(--gf-font-display);
  color: var(--gf-primary);
  font-weight: 800;
}

/* MATERIALS GRID */
.materials-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-top: 32px;
}
@media (max-width: 900px) { .materials-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 500px) { .materials-grid { grid-template-columns: 1fr; } }
.material-card {
  background: #fff;
  border: 1px solid var(--gf-border);
  border-radius: 14px;
  padding: 22px;
  transition: border-color 0.2s ease, transform 0.2s ease;
}
.material-card:hover { border-color: var(--gf-primary); transform: translateY(-2px); }
.material-card__badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--gf-green-50);
  color: var(--gf-primary);
  font-family: var(--gf-font-display);
  font-size: 11px;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: 999px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: 12px;
}
.material-card h4 {
  font-family: var(--gf-font-display);
  font-size: 16px;
  font-weight: 700;
  color: var(--gf-fg);
  margin: 0 0 8px 0;
  line-height: 1.3;
}
.material-card p {
  color: var(--gf-fg-muted);
  font-size: 14px;
  line-height: 1.55;
  margin: 0;
}

/* PROCESS TIMELINE */
.process-timeline {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 20px;
  margin-top: 40px;
  position: relative;
}
.process-timeline::before {
  content: '';
  position: absolute;
  top: 40px;
  left: 10%;
  right: 10%;
  height: 2px;
  background: linear-gradient(90deg, var(--gf-accent), var(--gf-primary));
  z-index: 0;
}
@media (max-width: 900px) {
  .process-timeline { grid-template-columns: 1fr; }
  .process-timeline::before { display: none; }
}
.process-step {
  text-align: center;
  position: relative;
  z-index: 1;
}
.process-step__num {
  width: 80px;
  height: 80px;
  margin: 0 auto 16px;
  border-radius: 50%;
  background: #fff;
  border: 3px solid var(--gf-primary);
  color: var(--gf-primary);
  font-family: var(--gf-font-display);
  font-weight: 800;
  font-size: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 8px 16px rgba(0,0,0,0.08);
}
.process-step__title {
  font-family: var(--gf-font-display);
  font-size: 15px;
  font-weight: 700;
  color: var(--gf-fg);
  margin: 0 0 6px 0;
}
.process-step__desc {
  font-size: 13px;
  color: var(--gf-fg-muted);
  line-height: 1.5;
  margin: 0;
}

/* GALLERY 6 fotos */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: 32px;
}
@media (max-width: 700px) { .gallery-grid { grid-template-columns: repeat(2, 1fr); } }
.gallery-item {
  aspect-ratio: 4/3;
  background-size: cover;
  background-position: center;
  border-radius: 14px;
  overflow: hidden;
  position: relative;
  transition: transform 0.25s ease;
  cursor: pointer;
}
.gallery-item:hover { transform: scale(1.02); }
.gallery-item__caption {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: linear-gradient(180deg, transparent, rgba(0,0,0,0.75));
  color: #fff;
  padding: 24px 16px 14px;
  font-family: var(--gf-font-display);
  font-weight: 600;
  font-size: 13px;
}

/* MINI FILTRO NO */
.mini-filter {
  background: #fbf3f1;
  border-left: 4px solid var(--gf-danger, #b8472f);
  padding: 20px 24px;
  border-radius: 12px;
  margin-top: 32px;
}
.mini-filter h4 {
  font-family: var(--gf-font-display);
  color: var(--gf-danger, #b8472f);
  font-size: 15px;
  margin: 0 0 10px 0;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.mini-filter ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.mini-filter ul li {
  font-size: 14px;
  color: var(--gf-fg-muted);
  padding-left: 22px;
  position: relative;
}
.mini-filter ul li::before {
  content: "✕";
  position: absolute;
  left: 0;
  color: var(--gf-danger, #b8472f);
  font-weight: 700;
}

/* QUOTE FORM */
.quote-form {
  background: #fff;
  border: 1px solid var(--gf-border);
  border-radius: 18px;
  padding: 32px 36px;
  margin-top: 32px;
}
@media (max-width: 600px) { .quote-form { padding: 24px 20px; } }
.quote-form h3 {
  font-family: var(--gf-font-display);
  font-size: 22px;
  margin: 0 0 8px 0;
  color: var(--gf-fg);
}
.quote-form > p {
  color: var(--gf-fg-muted);
  margin: 0 0 24px 0;
  font-size: 14px;
}
.quote-form__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}
@media (max-width: 600px) { .quote-form__grid { grid-template-columns: 1fr; } }
.quote-form__field { display: flex; flex-direction: column; gap: 6px; }
.quote-form__field.full { grid-column: 1 / -1; }
.quote-form__field label {
  font-family: var(--gf-font-display);
  font-size: 12px;
  font-weight: 700;
  color: var(--gf-fg-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.quote-form__field input,
.quote-form__field select,
.quote-form__field textarea {
  padding: 12px 14px;
  border: 1px solid var(--gf-border);
  border-radius: 8px;
  font-family: var(--gf-font-body);
  font-size: 15px;
  color: var(--gf-fg);
  background: #fff;
  transition: border-color 0.15s ease;
}
.quote-form__field input:focus,
.quote-form__field select:focus,
.quote-form__field textarea:focus {
  outline: none;
  border-color: var(--gf-primary);
  box-shadow: 0 0 0 3px rgba(72,139,103,0.1);
}
.quote-form__submit {
  margin-top: 20px;
}

/* SUBCATEGORÍAS (para piezas especiales) */
.subcategories-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-top: 32px;
}
@media (max-width: 900px) { .subcategories-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 480px) { .subcategories-grid { grid-template-columns: 1fr; } }
.subcategory-card {
  background: #fff;
  border-radius: 14px;
  overflow: hidden;
  border: 1px solid var(--gf-border);
  text-decoration: none;
  color: inherit;
  transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
  display: block;
}
.subcategory-card:hover {
  transform: translateY(-4px);
  border-color: var(--gf-primary);
  box-shadow: 0 12px 24px rgba(0,0,0,0.08);
}
.subcategory-card__img {
  aspect-ratio: 4/3;
  background-size: cover;
  background-position: center;
  background-color: var(--gf-navy-800);
}
.subcategory-card__body {
  padding: 18px 20px;
}
.subcategory-card__title {
  font-family: var(--gf-font-display);
  font-size: 16px;
  font-weight: 700;
  color: var(--gf-fg);
  margin: 0 0 6px 0;
}
.subcategory-card__desc {
  font-size: 13px;
  color: var(--gf-fg-muted);
  line-height: 1.5;
  margin: 0 0 10px 0;
}
.subcategory-card__cta {
  color: var(--gf-primary);
  font-family: var(--gf-font-display);
  font-weight: 600;
  font-size: 13px;
}