/* PAGE HERO */
.page-hero {
  padding: 140px 5vw 80px;
  background:
    linear-gradient(160deg, rgba(13, 27, 42, 0.80) 0%, rgba(28, 43, 58, 0.75) 100%),
    url('../images/productos.jpg') center/cover no-repeat;
  background-attachment: fixed;
  position: relative;
  overflow: hidden;
  color: var(--c-white);
  background-position: bottom;
}
.page-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 50% 60% at 80% 50%, rgba(0,168,204,0.08) 0%, transparent 70%);
}
.page-hero-inner {
  position: relative;
  z-index: 1;
  max-width: 700px;
}
.page-subtitle {
  font-size: 1.05rem;
  font-weight: 300;
  color: rgba(255,255,255,0.65);
  max-width: 560px;
  line-height: 1.7;
}

/* CTA BAND */
.cta-band {
  background: var(--c-blue);
  color: var(--c-white);
  padding: 4rem 5vw;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  flex-wrap: wrap;
}
.cta-band h2 {
  font-size: clamp(1.8rem, 3vw, 2.8rem);
  font-weight: 700;
  line-height: 1.1;
}
.cta-band p {
  font-size: 0.95rem;
  opacity: 0.85;
  margin-top: 0.5rem;
}
.btn-white {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--c-white);
  color: var(--c-blue);
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-decoration: none;
  padding: 0.85rem 2rem;
  border-radius: var(--radius);
  white-space: nowrap;
  transition: opacity var(--transition);
}
.btn-white:hover { opacity: 0.9; }

/* ── FILTER NAV ──────────────────────────────────────────────────────────── */
.filter-nav {
  background: var(--c-gray-50);
  padding: 1.5rem 5vw;
  position: sticky;
  top: 68px;
  z-index: 50;
  border-bottom: 1px solid var(--c-gray-100);
  display: flex;
  gap: 0.75rem;
}

.filter-btn {
  font-family: var(--font-sans);
  font-size: 12px;
  font-weight: bold;
  text-transform: uppercase;
  background: #6a809900;
  border: 1px solid var(--c-gray-300);
  color: var(--c-gray-500);
  cursor: pointer;
  transition: all var(--transition);
  text-decoration: none;
  padding: 0.5rem 1.2rem;
  border-radius: var(--radius);
}

.filter-btn:hover,
.filter-btn.active {
  background: var(--c-blue);
  border-color: var(--c-blue);
  color: var(--c-white);
}

.product-section {
  padding: 4rem 5vw;
  border-bottom: 1px solid var(--c-gray-100);
}

.product-section:nth-child(even) {
  background: var(--c-gray-50);
}

.product-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: start;
}

.product-layout.reverse {
  direction: rtl;
}

.product-layout.reverse > * {
  direction: ltr;
}

.product-visual {
  background: var(--c-dark3);
  border-radius: 12px;
  border: 1px solid rgba(26,63,111,0.12);
  aspect-ratio: 4/3;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 4rem;
  position: relative;
  overflow: hidden;
}

.product-visual-label {
  position: absolute;
  bottom: 1rem;
  left: 1rem;
  right: 1rem;
  font-family: var(--font-head);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--c-gray-300);
  text-align: center;
}

.product-num {
  position: absolute;
  top: 1rem;
  right: 1.5rem;
  font-family: var(--font-head);
  font-size: 4rem;
  font-weight: 800;
  color: rgba(0,168,204,0.08);
  line-height: 1;
}

.product-info {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.product-info .section-tag {
  margin-bottom: 0;
}

.product-name {
  font-family: var(--font-head);
  font-size: 20px;
  font-weight: bold;
  text-transform: uppercase;
  line-height: 1;
}

.product-desc {
  font-size: 0.95rem;
  color: var(--c-gray-700);
  line-height: 1.5;
}

.props-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  /* gap: 0.75rem; */
}

.prop-item {
  background: var(--c-dark3);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: var(--radius);
  padding: 0.75rem 1rem;
  display: flex;
  align-items: flex-start;
  gap: 0.6rem;
}

.prop-icon {
  font-size: 1rem;
  margin-top: 1px;
  flex-shrink: 0;
}
.prop-icon:empty::before {
  content: '';
  display: block;
  width: 18px;
  height: 18px;
  background-color: var(--c-blue);
  border-radius: 50%;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='20 6 9 17 4 12'/%3E%3C/svg%3E");
  background-size: 11px;
  background-repeat: no-repeat;
  background-position: center;
  margin-top: 2px;
}

.prop-text {
  font-size: 0.82rem;
  color: var(--c-gray-500);
  line-height: 1.4;
}

.prop-text strong {
  display: block;
  color: var(--c-dark);
  font-weight: 500;
  font-size: 0.85rem;
  margin-bottom: 0.1rem;
}

.spec-table {
  width: 100%;
  border-collapse: collapse;
}

.spec-table th {
  font-family: var(--font-head);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--c-orange);
  text-align: left;
  padding: 0.6rem 0;
  border-bottom: 1px solid rgba(26,63,111,0.16);
}

.spec-table td {
  font-size: 0.85rem;
  color: var(--c-gray-500);
  padding: 0.55rem 0;
  border-bottom: 1px solid rgba(255,255,255,0.04);
}

.spec-table td:first-child {
  color: var(--c-dark);
  font-weight: 500;
}

.applications {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.app-tag {
  background: rgba(0,168,204,0.08);
  border: 1px solid rgba(0,168,204,0.25);
  color: var(--c-orange);
  font-family: var(--font-head);
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.3rem 0.8rem;
  border-radius: 40px;
}

.btn-cta {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--c-blue);
  color: var(--c-white);
  font-family: var(--font-head);
  font-size: 14px;
  font-weight: 700;
  text-decoration: none;
  padding: 0.85rem 2rem;
  border-radius: var(--radius);
  transition: background var(--transition), transform var(--transition);
  align-self: flex-start;
}

.btn-cta:hover {
  background: var(--c-blue-mid);
  transform: translateY(-2px);
}

@media (max-width: 900px) {
  .product-layout,
  .product-layout.reverse {
    grid-template-columns: 1fr;
    direction: ltr;
  }

  .props-grid {
    grid-template-columns: 1fr;
  }

  .footer-top {
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
  }

  .footer-brand {
    grid-column: span 2;
  }

  .footer-bottom {
    flex-direction: column;
    gap: 0.5rem;
    text-align: center;
  }

  .cta-band {
    flex-direction: column;
  }
}

.product-visual img {max-width: 100%;}