/* ============================================================
   THERMOBLOCK — DESIGN SYSTEM
   Aesthetic: Industrial Precision
   Fonts: Archivo (display) + Inter (body)
   ============================================================ */

:root {
  --orange:   #FF8A1A;
  --gray:     #3DA148;   /* Brand calls this "Cement Gray" */
  --white:    #FFFFFF;
  --dark:     #1B1E1A;
  --dark-80:  #2a2e29;
  --dark-60:  #3c403b;
  --orange-10: rgba(255,138,26,0.10);
  --orange-20: rgba(255,138,26,0.20);

  --fs-xs:  0.75rem;
  --fs-sm:  0.875rem;
  --fs-md:  1rem;
  --fs-lg:  1.25rem;
  --fs-xl:  1.5rem;
  --fs-2xl: 2rem;
  --fs-3xl: 2.75rem;
  --fs-4xl: 3.75rem;
  --fs-5xl: 5rem;

  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 16px;

  --trans: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  --trans-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

/* RESET */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body { font-family: 'Inter', sans-serif; background: var(--white); color: var(--dark); line-height: 1.6; overflow-x: hidden; }
img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
button { cursor: pointer; border: none; background: none; font: inherit; }

/* TYPOGRAPHY */
h1, h2, h3, h4 { font-family: 'Archivo', sans-serif; line-height: 1.1; font-weight: 900; }
h1 { font-size: clamp(var(--fs-3xl), 6vw, var(--fs-5xl)); }
h2 { font-size: clamp(var(--fs-2xl), 4vw, var(--fs-4xl)); }
h3 { font-size: clamp(var(--fs-lg), 2vw, var(--fs-xl)); font-weight: 700; }

/* BUTTONS */
.btn {
  display: inline-flex; align-items: center; gap: 0.5rem;
  padding: 0.875rem 2rem; border-radius: var(--radius-sm);
  font-family: 'Archivo', sans-serif; font-weight: 700;
  font-size: var(--fs-sm); letter-spacing: 0.04em; text-transform: uppercase;
  transition: transform var(--trans), box-shadow var(--trans), background var(--trans);
  position: relative; overflow: hidden;
}
.btn::after {
  content: ''; position: absolute; inset: 0;
  background: rgba(255,255,255,0.12);
  transform: translateX(-100%); transition: transform var(--trans);
}
.btn:hover::after { transform: translateX(0); }
.btn:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(0,0,0,0.18); }
.btn:active { transform: translateY(0); }

.btn--primary { background: var(--orange); color: var(--white); }
.btn--primary:hover { box-shadow: 0 8px 32px rgba(255,138,26,0.4); }
.btn--ghost { background: transparent; color: var(--dark); border: 2px solid var(--dark); }
.btn--ghost:hover { background: var(--dark); color: var(--white); }
.btn--nav { background: var(--orange); color: var(--white); padding: 0.6rem 1.25rem; font-size: var(--fs-xs); }
.btn--full { width: 100%; justify-content: center; }
.btn__arrow { transition: transform var(--trans); }
.btn:hover .btn__arrow { transform: translateX(4px); }

/* SECTION UTILS */
.section-tag {
  display: inline-block; font-family: 'Archivo', sans-serif;
  font-size: var(--fs-xs); font-weight: 700; letter-spacing: 0.12em;
  text-transform: uppercase; color: var(--orange);
  margin-bottom: 1rem;
}
.section-tag--light { color: var(--orange); }
.section-header { text-align: center; max-width: 700px; margin: 0 auto 4rem; }
.section-header h2 { margin-bottom: 1rem; }
.section-header p { color: var(--dark-60); font-size: var(--fs-lg); }
.section-header--light h2 { color: var(--white); }
.section-header--light p { color: rgba(255,255,255,0.65); }

/* ============================================================
   NAV
   ============================================================ */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  background: rgba(27,30,26,0.95); backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255,138,26,0.15);
  transition: all var(--trans);
}
.nav__inner {
  max-width: 1280px; margin: 0 auto;
  padding: 0 2rem; height: 72px;
  display: flex; align-items: center; gap: 2rem;
}
.nav__logo img {
  height: 36px;
  filter: drop-shadow(0 0 8px rgba(255,255,255,0.55))
          drop-shadow(0 1px 3px rgba(0,0,0,0.6));
}
.nav__links {
  display: flex; gap: 2rem; margin-left: auto;
}
.nav__links a {
  font-family: 'Archivo', sans-serif; font-size: var(--fs-sm);
  font-weight: 600; color: rgba(255,255,255,0.75); letter-spacing: 0.02em;
  text-transform: uppercase; transition: color var(--trans); position: relative;
}
.nav__links a::after {
  content: ''; position: absolute; bottom: -4px; left: 0; right: 0;
  height: 2px; background: var(--orange); transform: scaleX(0);
  transition: transform var(--trans); transform-origin: left;
}
.nav__links a:hover { color: var(--white); }
.nav__links a:hover::after { transform: scaleX(1); }
.nav__burger {
  display: none; flex-direction: column; gap: 5px;
  padding: 4px; margin-left: auto;
}
.nav__burger span { display: block; width: 24px; height: 2px; background: var(--white); transition: all var(--trans); }

/* ============================================================
   HERO
   ============================================================ */
.hero {
  min-height: 100vh; display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center; gap: 4rem;
  padding: 120px 2rem 80px;
  max-width: 1280px; margin: 0 auto;
  position: relative;
}
.hero__grid-bg {
  position: fixed; inset: 0; z-index: -1;
  background-color: var(--dark);
  background-image:
    linear-gradient(rgba(255,138,26,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,138,26,0.04) 1px, transparent 1px);
  background-size: 48px 48px;
}
.hero__badge {
  display: inline-flex; align-items: center; gap: 0.5rem;
  font-family: 'Archivo', sans-serif; font-size: var(--fs-xs);
  font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--orange); border: 1px solid var(--orange-20);
  background: var(--orange-10); padding: 0.4rem 0.875rem;
  border-radius: 2px; margin-bottom: 1.5rem;
}
.hero__title {
  color: var(--white); margin-bottom: 1.5rem;
  text-shadow: 0 2px 40px rgba(0,0,0,0.4);
}
.hero__title em {
  font-style: italic; color: var(--orange);
  -webkit-text-stroke: 0px;
}
.hero__sub {
  color: rgba(255,255,255,0.7); font-size: var(--fs-lg);
  max-width: 520px; margin-bottom: 2.5rem; line-height: 1.7;
}
.hero__cta-row { display: flex; gap: 1rem; flex-wrap: wrap; margin-bottom: 3rem; }
.hero__cta-row .btn--ghost { color: var(--white); border-color: rgba(255,255,255,0.3); }
.hero__cta-row .btn--ghost:hover { background: rgba(255,255,255,0.1); }

.hero__stats { display: flex; align-items: center; gap: 1.5rem; flex-wrap: wrap; }
.stat { display: flex; flex-direction: column; }
.stat__num {
  font-family: 'Archivo', sans-serif; font-size: var(--fs-2xl);
  font-weight: 900; color: var(--orange); line-height: 1;
}
.stat__label { font-size: var(--fs-xs); color: rgba(255,255,255,0.55); margin-top: 0.2rem; }
.stat__sep { width: 1px; height: 40px; background: rgba(255,255,255,0.15); }

/* Hero visual */
.hero__visual {
  display: flex; justify-content: center; align-items: center;
  position: relative;
}
.hero__iso-wrap { position: relative; width: 360px; height: 360px; display: grid; place-items: center; }
.hero__iso {
  width: 220px; position: relative; z-index: 2;
  filter: drop-shadow(0 0 40px rgba(255,138,26,0.3))
          drop-shadow(0 0 12px rgba(255,255,255,0.45))
          drop-shadow(0 2px 6px rgba(0,0,0,0.5));
  animation: float 6s ease-in-out infinite;
}
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-16px); }
}
.hero__ring {
  position: absolute; border-radius: 50%; border: 1px solid;
  animation: spin linear infinite;
}
.hero__ring--1 { width: 280px; height: 280px; border-color: rgba(255,138,26,0.2); animation-duration: 20s; }
.hero__ring--2 { width: 340px; height: 340px; border-color: rgba(255,138,26,0.1); animation-duration: 30s; animation-direction: reverse; }
.hero__ring--3 { width: 400px; height: 400px; border-color: rgba(255,138,26,0.05); animation-duration: 40s; }
@keyframes spin { to { transform: rotate(360deg); } }

/* ============================================================
   PRODUCTS
   ============================================================ */
.productos {
  padding: 7rem 2rem;
  max-width: 1280px; margin: 0 auto;
}
.productos__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
}
.prod-card {
  border: 1px solid rgba(27,30,26,0.1);
  border-radius: var(--radius-md);
  padding: 2.5rem 2rem;
  position: relative; overflow: hidden;
  transition: transform var(--trans), border-color var(--trans), box-shadow var(--trans);
  background: var(--white);
}
.prod-card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0;
  height: 3px; background: var(--dark);
  transition: background var(--trans);
}
.prod-card:hover { transform: translateY(-6px); box-shadow: 0 24px 48px rgba(27,30,26,0.12); border-color: var(--orange); }
.prod-card:hover::before { background: var(--orange); }
.prod-card--accent { background: var(--dark); color: var(--white); }
.prod-card--accent .prod-card__num { color: var(--orange); }
.prod-card--accent p { color: rgba(255,255,255,0.7); }
.prod-card--accent ul { color: rgba(255,255,255,0.6); }
.prod-card--accent::before { background: var(--orange); }

.prod-card__num {
  font-family: 'Archivo', sans-serif; font-size: var(--fs-xs);
  font-weight: 900; letter-spacing: 0.1em; color: rgba(27,30,26,0.3);
  margin-bottom: 1.5rem;
}
.prod-card__icon {
  width: 48px; height: 48px; color: var(--orange);
  margin-bottom: 1.25rem;
}
.prod-card__icon svg { width: 100%; height: 100%; }
.prod-card h3 { margin-bottom: 0.75rem; }
.prod-card p { font-size: var(--fs-sm); color: var(--dark-60); line-height: 1.7; margin-bottom: 1.25rem; }
.prod-card__specs { display: flex; flex-direction: column; gap: 0.4rem; margin-bottom: 1.5rem; }
.prod-card__specs li { font-size: var(--fs-xs); color: var(--dark-60); padding-left: 1rem; position: relative; }
.prod-card__specs li::before { content: '—'; position: absolute; left: 0; color: var(--orange); }
.prod-card--accent .prod-card__specs li { color: rgba(255,255,255,0.55); }
.prod-card__tag {
  display: inline-block; font-family: 'Archivo', sans-serif;
  font-size: var(--fs-xs); font-weight: 700; letter-spacing: 0.08em;
  text-transform: uppercase; color: var(--orange);
  border: 1px solid var(--orange-20); padding: 0.25rem 0.625rem; border-radius: 2px;
}

/* ============================================================
   BENEFICIOS
   ============================================================ */
.beneficios {
  background: var(--dark);
  padding: 7rem 2rem;
}
.beneficios__inner { max-width: 1280px; margin: 0 auto; }
.beneficios__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.5rem;
}
.bene-card {
  background: var(--dark-80); border: 1px solid rgba(255,255,255,0.06);
  border-radius: var(--radius-md); padding: 2rem;
  transition: border-color var(--trans), transform var(--trans);
}
.bene-card:hover { border-color: var(--orange-20); transform: translateY(-4px); }
.bene-card__icon { width: 40px; height: 40px; color: var(--orange); margin-bottom: 1.25rem; }
.bene-card__icon svg { width: 100%; height: 100%; }
.bene-card h3 { color: var(--white); font-size: var(--fs-lg); margin-bottom: 0.75rem; }
.bene-card p { font-size: var(--fs-sm); color: rgba(255,255,255,0.6); line-height: 1.7; margin-bottom: 1.25rem; }
.bene-card__bar { height: 3px; background: rgba(255,255,255,0.08); border-radius: 2px; margin-bottom: 0.5rem; overflow: hidden; }
.bene-card__fill {
  height: 100%; width: var(--pct); background: var(--orange);
  border-radius: 2px; transform: scaleX(0); transform-origin: left;
  transition: transform 1.2s cubic-bezier(0.4, 0, 0.2, 1);
}
.bene-card.in-view .bene-card__fill { transform: scaleX(1); }
.bene-card__metric { font-family: 'Archivo', sans-serif; font-size: var(--fs-xs); font-weight: 700; color: var(--orange); letter-spacing: 0.06em; text-transform: uppercase; }

/* ============================================================
   ALCANCE
   ============================================================ */
.alcance { padding: 7rem 2rem; max-width: 1280px; margin: 0 auto; }
.alcance__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
}
.alcance-card {
  border-radius: var(--radius-md); overflow: hidden;
  position: relative; min-height: 380px;
  display: flex; align-items: flex-end;
  transition: transform var(--trans);
}
.alcance-card:hover { transform: scale(1.02); }
.alcance-card__bg {
  position: absolute; inset: 0;
  transition: transform var(--trans-slow);
}
.alcance-card:hover .alcance-card__bg { transform: scale(1.04); }
.alcance-card__bg--1 { background: linear-gradient(135deg, #1a2f1c 0%, #2d4a30 50%, #3a5c3d 100%); }
.alcance-card__bg--2 { background: linear-gradient(135deg, #1b1e1a 0%, #2a2e29 50%, #3c403b 100%); }
.alcance-card__bg--3 { background: linear-gradient(135deg, #1a2535 0%, #1e3a5f 50%, #1a4a7a 100%); }
.alcance-card__bg--4 { background: linear-gradient(135deg, #2d1f0a 0%, #4a3210 50%, #5c3e14 100%); }
.alcance-card__bg::after {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(to top, rgba(27,30,26,0.95) 0%, rgba(27,30,26,0.4) 60%, transparent 100%);
}
.alcance-card__content {
  position: relative; z-index: 1; padding: 2rem;
  color: var(--white);
}
.alcance-card__num {
  font-family: 'Archivo', sans-serif; font-size: var(--fs-xs);
  font-weight: 900; color: var(--orange); letter-spacing: 0.1em;
  display: block; margin-bottom: 0.75rem;
}
.alcance-card h3 { font-size: var(--fs-xl); margin-bottom: 0.75rem; }
.alcance-card p { font-size: var(--fs-sm); color: rgba(255,255,255,0.7); margin-bottom: 1rem; line-height: 1.7; }
.alcance-card ul { display: flex; flex-direction: column; gap: 0.3rem; }
.alcance-card ul li { font-size: var(--fs-xs); color: rgba(255,255,255,0.55); padding-left: 1rem; position: relative; }
.alcance-card ul li::before { content: '·'; position: absolute; left: 0; color: var(--orange); font-size: 1rem; }

/* ============================================================
   CONTACTO
   ============================================================ */
.contacto { background: var(--dark); padding: 7rem 2rem; }
.contacto__inner {
  max-width: 1280px; margin: 0 auto;
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 6rem; align-items: start;
}
.contacto__info h2 { color: var(--white); margin-bottom: 1rem; }
.contacto__info > p { color: rgba(255,255,255,0.65); font-size: var(--fs-lg); margin-bottom: 2rem; line-height: 1.7; }
.contacto__bullets { display: flex; flex-direction: column; gap: 1rem; margin-bottom: 3rem; }
.cbullet { display: flex; align-items: center; gap: 0.875rem; }
.cbullet svg { width: 20px; height: 20px; color: var(--orange); flex-shrink: 0; }
.cbullet span { font-size: var(--fs-sm); color: rgba(255,255,255,0.75); }
.contacto__iso {
  width: 80px;
  opacity: 0.4;
  margin-top: 2rem;
  filter: drop-shadow(0 0 10px rgba(255,255,255,0.5))
          drop-shadow(0 0 3px rgba(255,138,26,0.3));
}

/* FORM */
.contacto__form { display: flex; flex-direction: column; gap: 1.25rem; }
.form-row { display: flex; gap: 1.25rem; }
.form-row--2 > * { flex: 1; }
.form-group { display: flex; flex-direction: column; gap: 0.4rem; }
.form-group label {
  font-family: 'Archivo', sans-serif; font-size: var(--fs-xs);
  font-weight: 700; letter-spacing: 0.06em; text-transform: uppercase;
  color: rgba(255,255,255,0.6);
}
.form-group input,
.form-group select,
.form-group textarea {
  background: rgba(255,255,255,0.05); border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius-sm); padding: 0.875rem 1rem;
  font-family: 'Inter', sans-serif; font-size: var(--fs-sm);
  color: var(--white); transition: border-color var(--trans), background var(--trans);
  appearance: none; -webkit-appearance: none;
}
.form-group input::placeholder,
.form-group textarea::placeholder { color: rgba(255,255,255,0.3); }
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none; border-color: var(--orange);
  background: rgba(255,138,26,0.05);
}
.form-group select option { background: var(--dark-80); color: var(--white); }
.form-group textarea { resize: vertical; min-height: 120px; }
.form-disclaimer { font-size: var(--fs-xs); color: rgba(255,255,255,0.35); text-align: center; }

/* ============================================================
   FOOTER
   ============================================================ */
.footer { background: #111411; border-top: 1px solid rgba(255,255,255,0.06); }
.footer__inner {
  max-width: 1280px; margin: 0 auto;
  padding: 4rem 2rem; display: grid;
  grid-template-columns: 2fr 1fr 1fr; gap: 4rem;
}
.footer__brand img {
  margin-bottom: 1rem;
  filter: drop-shadow(0 0 8px rgba(255,255,255,0.5))
          drop-shadow(0 1px 3px rgba(0,0,0,0.6));
}
.footer__brand p { font-size: var(--fs-sm); color: rgba(255,255,255,0.45); line-height: 1.7; }
.footer__links { display: flex; flex-direction: column; gap: 0.75rem; }
.footer__links h4 {
  font-family: 'Archivo', sans-serif; font-size: var(--fs-xs);
  font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--orange); margin-bottom: 0.5rem;
}
.footer__links a { font-size: var(--fs-sm); color: rgba(255,255,255,0.5); transition: color var(--trans); }
.footer__links a:hover { color: var(--white); }
.footer__bottom {
  max-width: 1280px; margin: 0 auto;
  padding: 1.5rem 2rem; border-top: 1px solid rgba(255,255,255,0.05);
  display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 1rem;
  font-size: var(--fs-xs); color: rgba(255,255,255,0.3);
}

/* ============================================================
   ANIMATIONS — Intersection Observer
   ============================================================ */
.fade-up { opacity: 0; transform: translateY(32px); transition: opacity 0.6s ease, transform 0.6s ease; }
.fade-up.visible { opacity: 1; transform: translateY(0); }

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 1024px) {
  .hero { grid-template-columns: 1fr; text-align: center; min-height: auto; padding-top: 100px; }
  .hero__visual { display: none; }
  .hero__sub { margin: 0 auto 2.5rem; }
  .hero__cta-row { justify-content: center; }
  .hero__stats { justify-content: center; }
  .contacto__inner { grid-template-columns: 1fr; gap: 3rem; }
  .footer__inner { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  .nav__links { display: none; flex-direction: column; gap: 1rem; }
  .nav__links.open {
    display: flex; position: fixed; top: 72px; left: 0; right: 0;
    background: var(--dark); padding: 2rem; border-bottom: 1px solid rgba(255,138,26,0.15);
  }
  .nav__links a { font-size: var(--fs-md); }
  .btn--nav { display: none; }
  .nav__burger { display: flex; }
  .nav__burger.open span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
  .nav__burger.open span:nth-child(2) { opacity: 0; }
  .nav__burger.open span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

  .form-row--2 { flex-direction: column; }
  .footer__inner { grid-template-columns: 1fr; gap: 2rem; }
  .footer__bottom { flex-direction: column; text-align: center; }
  .alcance__grid { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
  .hero { padding: 88px 1.25rem 4rem; }
  .productos, .beneficios, .alcance, .contacto { padding: 4rem 1.25rem; }
  .footer__inner { padding: 3rem 1.25rem; }
}

/* ============================================================
   PRODUCTO VISUAL — Image + text split
   ============================================================ */
.producto-visual {
  padding: 7rem 2rem;
  background: var(--white);
  overflow: hidden;
}
.producto-visual__inner {
  max-width: 1280px; margin: 0 auto;
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 5rem; align-items: center;
}
.producto-visual__content .section-tag { margin-bottom: 1rem; }
.producto-visual__content h2 { margin-bottom: 1.25rem; }
.producto-visual__content > p {
  font-size: var(--fs-lg); color: var(--dark-60);
  line-height: 1.7; margin-bottom: 2rem;
}
.producto-visual__lista {
  display: flex; flex-direction: column; gap: 0.75rem;
  margin-bottom: 2.5rem;
}
.producto-visual__lista li {
  display: flex; align-items: center; gap: 0.875rem;
  font-size: var(--fs-sm); color: var(--dark-60);
}
.pvl-dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--orange); flex-shrink: 0;
}
.producto-visual__img {
  position: relative; border-radius: var(--radius-lg);
  overflow: hidden; box-shadow: 0 32px 80px rgba(27,30,26,0.15);
}
.producto-visual__img img {
  width: 100%; height: 500px; object-fit: cover;
  transition: transform var(--trans-slow);
}
.producto-visual__img:hover img { transform: scale(1.03); }
.producto-visual__badge {
  position: absolute; bottom: 1.25rem; left: 1.25rem;
  background: rgba(27,30,26,0.85); backdrop-filter: blur(8px);
  color: var(--orange); font-family: 'Archivo', sans-serif;
  font-size: var(--fs-xs); font-weight: 700;
  letter-spacing: 0.08em; text-transform: uppercase;
  padding: 0.4rem 0.875rem; border-radius: 2px;
  border: 1px solid var(--orange-20);
}

/* ============================================================
   BANNER PUBLICITARIO — Full bleed image + overlay text
   ============================================================ */
.banner-pub {
  position: relative; min-height: 520px;
  display: flex; align-items: center;
  overflow: hidden;
}
.banner-pub__img-wrap {
  position: absolute; inset: 0;
}
.banner-pub__img-wrap img {
  width: 100%; height: 100%; object-fit: cover;
  object-position: center 40%;
}
.banner-pub__overlay {
  position: absolute; inset: 0;
  background: linear-gradient(
    105deg,
    rgba(27,30,26,0.88) 0%,
    rgba(27,30,26,0.72) 50%,
    rgba(27,30,26,0.3) 100%
  );
}
.banner-pub__content {
  position: relative; z-index: 1;
  max-width: 1280px; margin: 0 auto;
  padding: 5rem 2rem;
  max-width: 640px;
}
.banner-pub__content h2 {
  color: var(--white); font-size: clamp(var(--fs-xl), 3.5vw, var(--fs-3xl));
  margin-bottom: 0.875rem; line-height: 1.15;
}
.banner-pub__content > p {
  color: rgba(255,255,255,0.7); font-size: var(--fs-lg);
  margin-bottom: 2rem;
}

/* ============================================================
   BLOG — Technical article layout
   ============================================================ */
.blog {
  padding: 7rem 2rem;
  background: #f7f7f6;
}
.blog__inner { max-width: 1280px; margin: 0 auto; }

.blog-article {
  background: var(--white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 8px 40px rgba(27,30,26,0.08);
  border: 1px solid rgba(27,30,26,0.06);
}
.blog-article__hero {
  position: relative; height: 420px; overflow: hidden;
}
.blog-article__hero img {
  width: 100%; height: 100%;
  object-fit: cover; object-position: center 35%;
}
.blog-article__hero::after {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(to top, rgba(27,30,26,0.7) 0%, transparent 60%);
}
.blog-article__meta {
  position: absolute; bottom: 1.5rem; left: 2rem; right: 2rem;
  z-index: 1; display: flex; align-items: center; gap: 0.75rem; flex-wrap: wrap;
}
.blog-tag {
  background: var(--orange); color: var(--white);
  font-family: 'Archivo', sans-serif; font-size: var(--fs-xs);
  font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase;
  padding: 0.25rem 0.75rem; border-radius: 2px;
}
.blog-read {
  font-family: 'Archivo', sans-serif; font-size: var(--fs-xs);
  color: rgba(255,255,255,0.7); font-weight: 600;
  letter-spacing: 0.06em; text-transform: uppercase;
  margin-left: auto;
}

.blog-article__body {
  padding: 3rem 3.5rem;
  max-width: 820px;
}
.blog-article__body h3 {
  font-size: clamp(var(--fs-xl), 3vw, var(--fs-2xl));
  margin-bottom: 1.25rem; line-height: 1.2;
}
.blog-article__lead {
  font-size: var(--fs-lg); color: var(--dark-60);
  line-height: 1.7; margin-bottom: 2rem;
  border-left: 3px solid var(--orange);
  padding-left: 1.25rem;
}
.blog-article__body h4 {
  font-size: var(--fs-lg); margin: 2rem 0 0.75rem;
  color: var(--dark);
}
.blog-article__body p {
  font-size: var(--fs-md); color: var(--dark-60);
  line-height: 1.75; margin-bottom: 1rem;
}
.blog-article__body strong { color: var(--dark); }

/* Specs grid */
.blog-specs {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 1rem; margin: 2rem 0;
  padding: 1.5rem; background: #f7f7f6;
  border-radius: var(--radius-md);
  border: 1px solid rgba(27,30,26,0.08);
}
.blog-spec { display: flex; flex-direction: column; gap: 0.2rem; }
.blog-spec__val {
  font-family: 'Archivo', sans-serif; font-size: var(--fs-xl);
  font-weight: 900; color: var(--orange); line-height: 1;
}
.blog-spec__label {
  font-size: var(--fs-xs); color: var(--dark-60);
  line-height: 1.4;
}

/* Table */
.blog-table-wrap { overflow-x: auto; margin: 1.5rem 0; border-radius: var(--radius-md); }
.blog-table {
  width: 100%; border-collapse: collapse;
  font-size: var(--fs-sm);
}
.blog-table thead { background: var(--dark); color: var(--white); }
.blog-table th {
  padding: 0.875rem 1.25rem; text-align: left;
  font-family: 'Archivo', sans-serif; font-weight: 700;
  font-size: var(--fs-xs); letter-spacing: 0.06em;
  text-transform: uppercase;
}
.blog-table th:last-child { color: var(--orange); }
.blog-table td {
  padding: 0.75rem 1.25rem; border-bottom: 1px solid rgba(27,30,26,0.06);
  color: var(--dark-60); vertical-align: middle;
}
.blog-table tr:last-child td { border-bottom: none; }
.blog-table tr:hover td { background: #f7f7f6; }
.blog-table td:last-child { color: var(--dark); }
.blog-table td strong { color: var(--dark); }

/* Blockquote */
.blog-quote {
  margin: 2rem 0;
  padding: 1.5rem 1.75rem;
  background: var(--orange-10);
  border-left: 4px solid var(--orange);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
}
.blog-quote p {
  font-family: 'Archivo', sans-serif; font-size: var(--fs-lg) !important;
  font-weight: 600; color: var(--dark) !important;
  font-style: italic; line-height: 1.5 !important;
  margin: 0 !important;
}

/* FAQ */
.blog-faq { margin: 2rem 0; }
.blog-faq h4 { margin-bottom: 1rem; }
.faq-item {
  border: 1px solid rgba(27,30,26,0.1);
  border-radius: var(--radius-sm);
  margin-bottom: 0.5rem;
  overflow: hidden;
}
.faq-item summary {
  padding: 1rem 1.25rem;
  font-family: 'Archivo', sans-serif; font-weight: 700;
  font-size: var(--fs-sm); cursor: pointer;
  list-style: none; display: flex; justify-content: space-between;
  align-items: center; transition: background var(--trans);
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: '+'; color: var(--orange); font-size: 1.25rem;
  font-weight: 400; transition: transform var(--trans);
}
.faq-item[open] summary::after { transform: rotate(45deg); }
.faq-item summary:hover { background: #f7f7f6; }
.faq-item[open] summary { background: #f7f7f6; }
.faq-item p {
  padding: 1rem 1.25rem 1.25rem !important;
  margin: 0 !important;
  border-top: 1px solid rgba(27,30,26,0.06);
}

/* Blog CTA */
.blog-cta {
  margin-top: 2.5rem; padding-top: 2rem;
  border-top: 1px solid rgba(27,30,26,0.08);
  display: flex; align-items: center;
  justify-content: space-between; flex-wrap: wrap; gap: 1rem;
}
.blog-cta p {
  font-size: var(--fs-sm) !important; color: var(--dark-60) !important;
  margin: 0 !important;
}

/* ============================================================
   RESPONSIVE — Nuevas secciones
   ============================================================ */
@media (max-width: 1024px) {
  .producto-visual__inner { grid-template-columns: 1fr; gap: 3rem; }
  .producto-visual__img img { height: 380px; }
  .banner-pub__content { max-width: 100%; }
  .blog-article__body { padding: 2rem; }
}
@media (max-width: 768px) {
  .blog-article__hero { height: 280px; }
  .blog-article__body { padding: 1.5rem; }
  .blog-specs { grid-template-columns: repeat(2, 1fr); }
  .blog-cta { flex-direction: column; }
  .banner-pub { min-height: 400px; }
}
@media (max-width: 480px) {
  .producto-visual { padding: 4rem 1.25rem; }
  .blog { padding: 4rem 1.25rem; }
  .banner-pub__content { padding: 3rem 1.25rem; }
  .blog-specs { grid-template-columns: 1fr 1fr; }
  .blog-article__hero { height: 220px; }
}