/* ============================================================
   Panazhea — Editorial industrial warmth
   A landing page in HTML/CSS for a radiator brand.
   Palette: cream paper · deep ink · celeste acento · terracota calor
   ============================================================ */

:root {
  /* colour — cool industrial stone, argentine celeste dominant */
  --paper:     #EDEDE6;  /* cool stone paper */
  --paper-2:   #DFDFD6;
  --paper-3:   #D1D1C6;
  --ink:       #0B1018;  /* blue-black */
  --ink-2:     #2A333F;
  --mute:      #6F7683;
  --rule:      #BDBDB2;
  --celeste:   #2B8FBA;  /* confident argentine celeste */
  --celeste-2: #1B6E94;
  --celeste-3: #9FC9DC;
  --accent:    #7A1E2B;  /* deep oxblood, the only warm note */
  --accent-2:  #4A0F17;
  --glass:     rgba(255,255,253,0.55);

  /* type */
  --f-display: 'Fraunces', 'Times New Roman', serif;
  --f-body:    'Bricolage Grotesque', ui-sans-serif, system-ui, sans-serif;
  --f-mono:    'JetBrains Mono', ui-monospace, Menlo, monospace;

  /* scale */
  --step-00: clamp(.72rem, .7rem + .1vw, .78rem);
  --step-0:  clamp(.92rem, .88rem + .2vw, 1rem);
  --step-1:  clamp(1.02rem, .96rem + .35vw, 1.15rem);
  --step-2:  clamp(1.24rem, 1.1rem + .6vw, 1.5rem);
  --step-3:  clamp(1.56rem, 1.3rem + 1.1vw, 2.15rem);
  --step-4:  clamp(2.1rem, 1.6rem + 2.2vw, 3.4rem);
  --step-5:  clamp(2.8rem, 1.8rem + 4.5vw, 5.5rem);
  --step-6:  clamp(3.2rem, 1.6rem + 5.5vw, 6.6rem);

  /* layout */
  --gutter: clamp(1.25rem, 3vw, 2.75rem);
  --max:    1360px;
  --radius: 2px;

  /* motion */
  --ease: cubic-bezier(.2,.7,.2,1);
}

/* ---------- reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font: inherit; border: 0; background: none; cursor: pointer; color: inherit; }
input, textarea, select { font: inherit; color: inherit; }
ol, ul { list-style: none; margin: 0; padding: 0; }
h1, h2, h3, h4, p, dl, dd { margin: 0; }
dd, dt { display: inline-block; }

::selection { background: var(--accent); color: var(--paper); }

/* ---------- base ---------- */
body {
  font-family: var(--f-body);
  font-variation-settings: "opsz" 16, "wght" 400;
  font-size: var(--step-1);
  color: var(--ink);
  background: var(--paper);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
  position: relative;
}

/* subtle cool atmospheric paper */
body::before {
  content: "";
  position: fixed; inset: 0;
  background:
    radial-gradient(circle at 15% 10%, rgba(43,143,186,.10), transparent 45%),
    radial-gradient(circle at 85% 85%, rgba(122,30,43,.06), transparent 50%),
    radial-gradient(circle at 50% 50%, rgba(210,212,202,.55), transparent 65%);
  pointer-events: none;
  z-index: 0;
}

/* grain overlay */
.grain {
  position: fixed; inset: -50%;
  pointer-events: none;
  z-index: 1;
  opacity: .12;
  mix-blend-mode: multiply;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='240' height='240'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2' stitchTiles='stitch'/><feColorMatrix values='0 0 0 0 0.06  0 0 0 0 0.08  0 0 0 0 0.10  0 0 0 .7 0'/></filter><rect width='100%' height='100%' filter='url(%23n)'/></svg>");
}

main { position: relative; z-index: 2; }

/* ---------- typography utilities ---------- */
.eyebrow {
  font-family: var(--f-mono);
  font-size: var(--step-00);
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--ink-2);
  display: inline-flex;
  align-items: center;
  gap: .75rem;
}
.eyebrow span {
  color: var(--accent);
  font-weight: 500;
}
.eyebrow--light { color: var(--paper); }
.eyebrow--light span { color: var(--paper); opacity: .7; }

.section-title {
  font-family: var(--f-display);
  font-variation-settings: "opsz" 120, "wght" 380, "SOFT" 30;
  font-size: var(--step-5);
  line-height: .96;
  letter-spacing: -.02em;
  color: var(--ink);
  max-width: 22ch;
}
.section-title em {
  font-style: italic;
  font-variation-settings: "opsz" 144, "wght" 360, "SOFT" 100;
  color: var(--celeste-2);
}

.section-sub {
  font-size: var(--step-1);
  color: var(--ink-2);
  max-width: 56ch;
  margin-top: 1rem;
}

.section-head { padding: 0 var(--gutter); }

/* ---------- wordmark ---------- */
.wordmark {
  font-family: var(--f-display);
  font-size: 1.4rem;
  line-height: 1;
  letter-spacing: -.02em;
  display: inline-flex;
  align-items: baseline;
  color: var(--ink);
  position: relative;
}
.wordmark em {
  font-style: italic;
  font-variation-settings: "opsz" 144, "wght" 500, "SOFT" 90;
}
.wordmark b {
  font-weight: 600;
  font-variation-settings: "opsz" 60, "wght" 620, "SOFT" 10;
  color: var(--celeste);
  margin-left: -.05em;
}
.wordmark__rule {
  position: absolute;
  left: 0; right: 20%;
  bottom: -.45em;
  width: 90%; height: 10px;
  color: var(--ink);
  opacity: .85;
}
.wordmark--lg { font-size: clamp(3rem, 8vw, 6rem); }

/* ---------- NAV ---------- */
.nav {
  position: sticky;
  top: 0;
  z-index: 40;
  display: grid;
  grid-template-columns: auto 1fr auto auto;
  align-items: center;
  gap: clamp(.75rem, 2vw, 2rem);
  padding: .9rem var(--gutter);
  background: color-mix(in oklab, var(--paper) 82%, transparent);
  backdrop-filter: blur(12px) saturate(1.15);
  -webkit-backdrop-filter: blur(12px) saturate(1.15);
  border-bottom: 1px solid color-mix(in oklab, var(--rule) 60%, transparent);
}
.nav__mark {
  display: inline-flex;
  flex-direction: column;
  gap: .15rem;
  line-height: 1;
}
.nav__mark .wordmark__tag {
  font-family: var(--f-mono);
  font-size: .65rem;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--mute);
  margin-top: .35rem;
}
.nav__links {
  display: flex;
  gap: clamp(.75rem, 2vw, 1.75rem);
  font-size: .95rem;
  color: var(--ink-2);
  justify-self: end;
}
.nav__links a {
  position: relative;
  padding: .25rem 0;
}
.nav__links a::after {
  content: "";
  position: absolute;
  left: 0; right: 100%;
  bottom: -2px;
  height: 1px;
  background: var(--accent);
  transition: right .4s var(--ease);
}
.nav__links a:hover::after { right: 0; }

.nav__cta {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  padding: .65rem 1rem;
  border: 1px solid var(--ink);
  border-radius: 100px;
  font-size: .9rem;
  transition: background .3s var(--ease), color .3s var(--ease), transform .3s var(--ease);
}
.nav__cta:hover { background: var(--ink); color: var(--paper); transform: translateY(-1px); }
.nav__cta svg { width: 16px; height: 16px; }

.nav__burger {
  display: none;
  width: 36px; height: 36px;
  position: relative;
}
.nav__burger span {
  position: absolute;
  left: 8px; right: 8px;
  height: 1.5px;
  background: var(--ink);
  transition: transform .35s var(--ease), opacity .2s var(--ease), top .35s var(--ease);
}
.nav__burger span:nth-child(1) { top: 12px; }
.nav__burger span:nth-child(2) { top: 18px; }
.nav__burger span:nth-child(3) { top: 24px; }
.nav.is-open .nav__burger span:nth-child(1) { top: 18px; transform: rotate(45deg); }
.nav.is-open .nav__burger span:nth-child(2) { opacity: 0; }
.nav.is-open .nav__burger span:nth-child(3) { top: 18px; transform: rotate(-45deg); }

/* ---------- HERO ---------- */
.hero {
  position: relative;
  padding: clamp(2rem, 5vw, 4rem) var(--gutter) clamp(3rem, 6vw, 6rem);
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(0, .75fr);
  grid-template-rows: auto auto auto auto;
  column-gap: clamp(1.5rem, 4vw, 4rem);
  row-gap: clamp(1rem, 2.2vw, 1.75rem);
  align-items: start;
  max-width: var(--max);
  margin: 0 auto;
}

.hero__meta {
  grid-column: 1 / -1;
  display: flex;
  flex-wrap: wrap;
  gap: .5rem .7rem;
  align-items: center;
  padding-top: .5rem;
}
.tick {
  font-family: var(--f-mono);
  font-size: .72rem;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--ink-2);
  border: 1px solid var(--rule);
  padding: .32rem .55rem;
  border-radius: 2px;
  background: var(--glass);
}
.tick--mono { color: var(--accent); border-color: var(--accent); }
.tick--blue { color: var(--celeste-2); border-color: var(--celeste); background: color-mix(in oklab, var(--celeste) 15%, var(--paper)); }

.hero__title {
  grid-column: 1 / 2;
  font-family: var(--f-display);
  font-size: var(--step-6);
  font-variation-settings: "opsz" 144, "wght" 360, "SOFT" 20;
  line-height: .92;
  letter-spacing: -.035em;
  color: var(--ink);
}
.hero__title .line {
  display: block;
}
.hero__title .line:nth-child(2) {
  padding-left: clamp(1rem, 6vw, 5rem);
}
.hero__title em {
  font-style: italic;
  font-variation-settings: "opsz" 144, "wght" 380, "SOFT" 100;
  color: var(--celeste-2);
  position: relative;
}
.hero__title em::after {
  content: "";
  position: absolute;
  left: 4%;
  right: 6%;
  bottom: .02em;
  height: .06em;
  background: var(--accent);
  transform-origin: left;
  transform: scaleX(0);
  animation: underline 1.4s 1.2s var(--ease) forwards;
}
@keyframes underline { to { transform: scaleX(1); } }
.hero__title .line:last-child { color: var(--ink-2); }

.hero__lede {
  grid-column: 1 / 2;
  max-width: 46ch;
  font-size: var(--step-2);
  color: var(--ink-2);
  font-variation-settings: "opsz" 32, "wght" 380;
  line-height: 1.4;
}

.hero__spec {
  grid-column: 1 / 2;
  border-top: 1px solid var(--rule);
  padding-top: 1.25rem;
  font-family: var(--f-mono);
}
.hero__spec dl {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: .5rem 1.25rem;
  margin: 0;
}
.hero__spec dt {
  display: block;
  font-size: .7rem;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--mute);
  margin-bottom: .25rem;
}
.hero__spec dd {
  display: block;
  font-size: .95rem;
  color: var(--ink);
  font-weight: 500;
}

.hero__radiator {
  grid-column: 2 / 3;
  grid-row: 2 / 5;
  align-self: stretch;
  justify-self: end;
  margin: 0;
  position: relative;
  width: 100%;
  max-width: 380px;
  padding: 2rem 2.5rem 3rem 1rem;
}
.hero__radiator::before {
  content: "";
  position: absolute;
  inset: 1rem 1.5rem 2.2rem 0;
  background:
    radial-gradient(ellipse 80% 60% at 40% 30%, color-mix(in oklab, var(--celeste) 18%, transparent), transparent 65%),
    linear-gradient(135deg, var(--paper-2), var(--paper-3));
  border-radius: 4px;
  border: 1px solid var(--rule);
  z-index: -1;
}

.hero__scroll {
  position: absolute;
  left: var(--gutter);
  bottom: 1rem;
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  gap: .5rem;
  font-family: var(--f-mono);
  font-size: .7rem;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--mute);
}
.hero__scroll svg { width: 10px; height: 32px; animation: drift 2.4s ease-in-out infinite; }
@keyframes drift {
  0%, 100% { transform: translateY(0); opacity: .6; }
  50%      { transform: translateY(4px); opacity: 1; }
}

/* ---------- RADIATOR ILLUSTRATION ---------- */
.radiator {
  position: relative;
  background: linear-gradient(180deg, #B4B0A4 0%, #8F8B7E 55%, #6B6759 100%);
  border: 1px solid color-mix(in oklab, var(--ink) 45%, var(--paper));
  border-radius: 6px;
  padding: .65rem .5rem .9rem;
  box-shadow:
    0 1px 0 rgba(255,255,255,.25) inset,
    0 0 0 .5px color-mix(in oklab, var(--ink) 25%, transparent) inset,
    0 34px 55px -28px rgba(11,16,24,.55),
    0 14px 22px -14px rgba(11,16,24,.4);
  aspect-ratio: 3 / 4.2;
}
.radiator__shimmer {
  position: absolute;
  inset: 0;
  border-radius: 6px;
  overflow: hidden;
  pointer-events: none;
}
.radiator__shimmer::before {
  content: "";
  position: absolute;
  inset: -10%;
  background: radial-gradient(ellipse 40% 120% at 30% 20%, rgba(255,255,255,.55), transparent 60%);
  mix-blend-mode: overlay;
  animation: breathe 9s ease-in-out infinite;
}
@keyframes breathe {
  0%, 100% { transform: translateY(0) scale(1); opacity: .7; }
  50%      { transform: translateY(-2%) scale(1.02); opacity: 1; }
}
.radiator__body {
  position: relative;
  height: 100%;
  display: flex;
  flex-direction: column;
  gap: .35rem;
}
.radiator__top {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 3px;
  padding: 0 .15rem;
}
.radiator__top span {
  display: block;
  height: 12px;
  border-radius: 2px;
  background:
    linear-gradient(180deg, #1A1512 0%, #3E342A 60%, rgba(26,21,18,.15) 100%);
  box-shadow:
    0 1px 0 rgba(255,255,255,.35);
}
.radiator__slats {
  flex: 1;
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 3px;
  padding: 0 .1rem;
}
.radiator__slats i {
  display: block;
  height: 100%;
  border-radius: 2px 2px 3px 3px;
  background:
    linear-gradient(180deg, #DCDACF 0%, #B3B0A3 45%, #82806F 100%);
  box-shadow:
    inset 1.5px 0 0 rgba(255,255,255,.65),
    inset -1.5px 0 0 rgba(11,16,24,.35),
    inset 0 -8px 10px -4px rgba(11,16,24,.3);
}
.radiator__plate {
  position: absolute;
  left: 50%; bottom: -.9rem;
  transform: translateX(-50%);
  font-family: var(--f-display);
  font-style: italic;
  font-size: .85rem;
  color: var(--ink);
  background: var(--paper-2);
  padding: .15rem .55rem;
  border: 1px solid color-mix(in oklab, var(--ink) 18%, transparent);
  border-radius: 2px;
  letter-spacing: -.01em;
}
.radiator__plate sup { font-size: .55rem; vertical-align: top; }

.radiator__heat {
  position: absolute;
  left: 8%; right: 8%;
  top: -24px;
  height: 24px;
  display: flex;
  gap: 8%;
  pointer-events: none;
}
.radiator__heat span {
  flex: 1;
  height: 100%;
  background: linear-gradient(180deg, transparent 0%, color-mix(in oklab, var(--accent) 40%, transparent) 60%, color-mix(in oklab, var(--accent) 70%, transparent) 100%);
  filter: blur(4px);
  opacity: .55;
  animation: rise 3.6s ease-in-out infinite;
  transform-origin: bottom;
}
.radiator__heat span:nth-child(2) { animation-delay: .6s; }
.radiator__heat span:nth-child(3) { animation-delay: 1.2s; }
@keyframes rise {
  0%   { transform: translateY(4px) scaleY(.7); opacity: 0; }
  25%  { opacity: .55; }
  100% { transform: translateY(-16px) scaleY(1.2); opacity: 0; }
}

.radiator__dim {
  position: absolute;
  color: var(--mute);
  font-family: var(--f-mono);
}
.radiator__dim--h {
  left: 50%;
  bottom: -44px;
  transform: translateX(-50%);
  width: 80%;
  height: 24px;
}
.radiator__dim--v {
  top: 50%;
  right: -34px;
  transform: translateY(-50%);
  height: 80%;
  width: 24px;
}

/* big radiator in producto */
.radiator--lg { width: min(100%, 340px); aspect-ratio: 3 / 4; }

/* ---------- MARQUEE ---------- */
.marquee {
  position: relative;
  overflow: hidden;
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
  background: var(--paper-2);
  padding: .95rem 0;
  color: var(--ink);
}
.marquee__track {
  display: inline-flex;
  gap: 2rem;
  white-space: nowrap;
  font-family: var(--f-display);
  font-style: italic;
  font-variation-settings: "opsz" 144, "wght" 400, "SOFT" 80;
  font-size: clamp(1.1rem, 2vw, 1.65rem);
  animation: slide 38s linear infinite;
}
.marquee__track .dot { color: var(--accent); font-style: normal; }
@keyframes slide {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}

/* ---------- MANIFESTO ---------- */
.manifesto {
  max-width: 920px;
  margin: 0 auto;
  padding: clamp(5rem, 10vw, 10rem) var(--gutter) clamp(4rem, 8vw, 8rem);
  text-align: left;
}
.manifesto__title {
  font-family: var(--f-display);
  font-size: clamp(3rem, 11vw, 9rem);
  font-variation-settings: "opsz" 144, "wght" 340, "SOFT" 30;
  line-height: .88;
  letter-spacing: -.035em;
  margin: .75rem 0 2rem;
}
.manifesto__title em {
  font-style: italic;
  font-variation-settings: "opsz" 144, "wght" 400, "SOFT" 100;
  color: var(--accent-2);
}
.manifesto__lead {
  font-family: var(--f-display);
  font-variation-settings: "opsz" 36, "wght" 360;
  font-size: var(--step-3);
  line-height: 1.4;
  color: var(--ink);
  max-width: 30ch;
}
.dropcap {
  float: left;
  font-family: var(--f-display);
  font-style: italic;
  font-variation-settings: "opsz" 144, "wght" 500, "SOFT" 90;
  font-size: clamp(4rem, 10vw, 7rem);
  line-height: .8;
  padding: .1em .15em 0 0;
  color: var(--accent);
}
.manifesto__sig {
  margin-top: 3rem;
  display: flex;
  align-items: center;
  gap: 1rem;
  font-family: var(--f-mono);
  font-size: .8rem;
  color: var(--ink-2);
  letter-spacing: .04em;
}
.sig__line { display: block; height: 1px; width: 60px; background: var(--ink); }

/* ---------- PRODUCTO ---------- */
.producto {
  max-width: var(--max);
  margin: 0 auto;
  padding: clamp(3rem, 6vw, 6rem) var(--gutter);
}
.producto__header {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1rem 2rem;
  align-items: baseline;
  margin-bottom: clamp(2rem, 4vw, 4rem);
  border-top: 1px solid var(--rule);
  padding-top: 1.5rem;
}
.producto__grid {
  display: grid;
  grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr);
  gap: clamp(2rem, 5vw, 5rem);
  align-items: start;
}
.diagram {
  position: sticky;
  top: 90px;
  margin: 0;
}
.diagram__stage {
  position: relative;
  padding: 3rem 2rem;
  display: grid;
  place-items: center;
  min-height: 520px;
  background:
    radial-gradient(circle at 50% 50%, var(--paper-2) 0%, transparent 70%),
    repeating-linear-gradient(0deg, color-mix(in oklab, var(--rule) 25%, transparent) 0 1px, transparent 1px 22px),
    repeating-linear-gradient(90deg, color-mix(in oklab, var(--rule) 25%, transparent) 0 1px, transparent 1px 22px);
  border: 1px solid var(--rule);
  border-radius: 3px;
}
.callout {
  position: absolute;
  left: var(--x); top: var(--y);
  width: 34px; height: 34px;
  border: 1px solid var(--ink);
  background: var(--paper);
  border-radius: 100px;
  color: var(--ink);
  font-family: var(--f-mono);
  font-size: .85rem;
  display: grid;
  place-items: center;
  transition: transform .3s var(--ease), background .3s var(--ease), color .3s var(--ease);
  box-shadow: 0 4px 10px -5px rgba(26,21,18,.35);
}
.callout::before {
  content: "";
  position: absolute;
  inset: -6px;
  border-radius: 100px;
  border: 1px dashed var(--ink);
  opacity: 0;
  transition: opacity .3s var(--ease);
}
.callout:hover { background: var(--accent); color: var(--paper); transform: scale(1.1); }
.callout:hover::before { opacity: .4; }

.speclist {
  display: flex;
  flex-direction: column;
  gap: 0;
}
.speclist li {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1rem 2rem;
  padding: 1.75rem 0;
  border-top: 1px solid var(--rule);
}
.speclist li:last-child { border-bottom: 1px solid var(--rule); }
.speclist__num {
  font-family: var(--f-mono);
  font-size: .8rem;
  color: var(--accent);
  letter-spacing: .12em;
  padding-top: .45rem;
}
.speclist h3 {
  font-family: var(--f-display);
  font-variation-settings: "opsz" 60, "wght" 500, "SOFT" 30;
  font-size: var(--step-3);
  line-height: 1.1;
  margin-bottom: .5rem;
}
.speclist p {
  color: var(--ink-2);
  max-width: 46ch;
}
.speclist code {
  font-family: var(--f-mono);
  background: color-mix(in oklab, var(--accent) 18%, var(--paper));
  padding: .05em .4em;
  border-radius: 2px;
  font-size: .95em;
}

/* ---------- BENEFICIOS ---------- */
.beneficios {
  max-width: var(--max);
  margin: 0 auto;
  padding: clamp(3rem, 6vw, 6rem) var(--gutter);
}
.beneficios .section-head {
  border-top: 1px solid var(--rule);
  padding-top: 1.5rem;
  padding-left: 0; padding-right: 0;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1rem 2rem;
  align-items: baseline;
  margin-bottom: clamp(2rem, 4vw, 4rem);
}
.bene-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1rem;
}
.bene {
  position: relative;
  padding: 1.75rem 1.5rem 2rem;
  background: var(--glass);
  border: 1px solid var(--rule);
  border-radius: 3px;
  transition: transform .4s var(--ease), border-color .4s var(--ease), background .4s var(--ease);
  overflow: hidden;
}
.bene::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: 0;
  height: 2px;
  background: var(--celeste);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .5s var(--ease);
}
.bene:hover {
  transform: translateY(-4px);
  border-color: var(--ink-2);
  background: var(--paper);
}
.bene:hover::after { transform: scaleX(1); }
.bene__icon {
  width: 44px; height: 44px;
  margin-bottom: 1.5rem;
  color: var(--ink);
}
.bene__icon svg { width: 100%; height: 100%; }
.bene h3 {
  font-family: var(--f-display);
  font-variation-settings: "opsz" 60, "wght" 500, "SOFT" 40;
  font-size: var(--step-2);
  line-height: 1.1;
  margin-bottom: .5rem;
}
.bene p {
  color: var(--ink-2);
  font-size: var(--step-0);
}

/* ---------- MODELOS ---------- */
.modelos {
  max-width: var(--max);
  margin: 0 auto;
  padding: clamp(3rem, 6vw, 6rem) var(--gutter);
}
.modelos .section-head {
  border-top: 1px solid var(--rule);
  padding-top: 1.5rem;
  padding-left: 0; padding-right: 0;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1rem 2rem;
  align-items: baseline;
  margin-bottom: clamp(2rem, 4vw, 4rem);
}
.models {
  border: 1px solid var(--ink);
  background: var(--paper-2);
  border-radius: 3px;
  overflow: hidden;
}
.models__head {
  display: grid;
  grid-template-columns: 1.2fr .7fr .9fr 2fr .8fr;
  padding: 1rem 1.5rem;
  font-family: var(--f-mono);
  font-size: .72rem;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--paper);
  background: var(--ink);
  border-bottom: 1px solid var(--ink);
}
.model {
  display: grid;
  grid-template-columns: 1.2fr .7fr .9fr 2fr .8fr;
  align-items: center;
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid var(--rule);
  transition: background .3s var(--ease);
}
.model:last-child { border-bottom: 0; }
.model:hover { background: color-mix(in oklab, var(--celeste) 14%, var(--paper-2)); }
.model__code {
  font-family: var(--f-mono);
  font-size: 1rem;
  font-weight: 500;
  color: var(--ink);
  letter-spacing: .01em;
}
.model__dim {
  font-family: var(--f-display);
  font-variation-settings: "opsz" 60, "wght" 500, "SOFT" 60;
  font-size: var(--step-3);
  line-height: 1;
  color: var(--accent);
}
.model__depth {
  font-family: var(--f-mono);
  font-size: .85rem;
  color: var(--ink-2);
}
.model__use {
  color: var(--ink-2);
  font-size: .95rem;
}
.model__cta a {
  font-family: var(--f-mono);
  font-size: .8rem;
  letter-spacing: .1em;
  color: var(--ink);
  border-bottom: 1px solid var(--ink);
  padding-bottom: 2px;
  transition: color .3s var(--ease), border-color .3s var(--ease);
}
.model__cta a:hover { color: var(--accent); border-color: var(--accent); }
.model--hi { background: color-mix(in oklab, var(--celeste) 8%, var(--paper-2)); }
.model--hi .model__use::after {
  content: "★";
  color: var(--accent);
  margin-left: .5em;
}

.models__note {
  padding: 1rem 1.5rem;
  background: var(--ink);
  color: var(--paper);
  font-size: .85rem;
  line-height: 1.55;
}
.models__note > span:first-child {
  color: var(--accent);
  font-weight: 600;
  margin-right: .35rem;
}
.models__note a {
  color: var(--celeste);
  border-bottom: 1px solid color-mix(in oklab, var(--celeste) 60%, transparent);
  padding-bottom: 1px;
  transition: color .2s var(--ease), border-color .2s var(--ease);
}
.models__note a:hover { color: var(--paper); border-color: var(--paper); }
.models__note code {
  font-family: var(--f-mono);
  font-size: .9em;
  background: var(--celeste);
  color: var(--ink);
  padding: .1em .45em;
  border-radius: 2px;
  font-weight: 500;
}

/* ---------- POR QUÉ ---------- */
.porque {
  background: linear-gradient(180deg, var(--ink) 0%, #0E0C0A 100%);
  color: var(--paper);
  margin-top: clamp(3rem, 6vw, 6rem);
  position: relative;
  overflow: hidden;
}
.porque::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 80% 20%, rgba(43,143,186,.28), transparent 55%),
    radial-gradient(circle at 20% 90%, rgba(122,30,43,.22), transparent 55%);
  pointer-events: none;
}
.porque__inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: clamp(5rem, 10vw, 10rem) var(--gutter);
  position: relative;
}
.porque__title {
  font-family: var(--f-display);
  font-variation-settings: "opsz" 144, "wght" 340, "SOFT" 20;
  font-size: var(--step-5);
  line-height: .95;
  letter-spacing: -.035em;
  margin: 1.5rem 0 clamp(3rem, 5vw, 5rem);
}
.porque__title em {
  font-style: italic;
  font-variation-settings: "opsz" 144, "wght" 340, "SOFT" 100;
  color: var(--celeste);
}
.porque__title span { display: block; }
.pillars {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 2rem;
  counter-reset: p;
}
.pillar {
  border-top: 1px solid color-mix(in oklab, var(--paper) 30%, transparent);
  padding-top: 1.5rem;
}
.pillar__no {
  display: block;
  font-family: var(--f-display);
  font-style: italic;
  font-variation-settings: "opsz" 144, "wght" 400, "SOFT" 100;
  color: var(--celeste);
  font-size: 2rem;
  margin-bottom: .75rem;
}
.pillar h3 {
  font-family: var(--f-display);
  font-variation-settings: "opsz" 60, "wght" 400, "SOFT" 40;
  font-size: var(--step-3);
  margin-bottom: .5rem;
}
.pillar p {
  color: color-mix(in oklab, var(--paper) 70%, transparent);
  max-width: 34ch;
}
.porque__closer {
  margin-top: clamp(3rem, 5vw, 5rem);
  font-family: var(--f-display);
  font-style: italic;
  font-variation-settings: "opsz" 144, "wght" 380, "SOFT" 100;
  font-size: var(--step-4);
  color: var(--paper);
  text-align: right;
  line-height: 1.1;
}

/* ---------- CONTACTO ---------- */
.contacto {
  max-width: var(--max);
  margin: 0 auto;
  padding: clamp(4rem, 8vw, 8rem) var(--gutter);
}
.contacto__intro {
  margin-bottom: clamp(2rem, 4vw, 4rem);
  border-top: 1px solid var(--rule);
  padding-top: 1.5rem;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1rem 2rem;
  align-items: baseline;
}
.contacto__intro .section-title { grid-column: 2; }
.contacto__intro .section-sub { grid-column: 2; }
.contacto__intro .eyebrow { grid-column: 1; padding-top: .5rem; }

.contacto__grid {
  display: grid;
  grid-template-columns: minmax(0, .8fr) minmax(0, 1.2fr);
  gap: clamp(2rem, 4vw, 4rem);
  align-items: start;
}
.contacto__card {
  position: relative;
  background: var(--ink);
  color: var(--paper);
  padding: 2.25rem;
  border-radius: 3px;
  overflow: hidden;
}
.contacto__card::before {
  content: "";
  position: absolute; inset: 0;
  background: radial-gradient(ellipse 80% 40% at 100% 0%, color-mix(in oklab, var(--celeste) 45%, transparent), transparent 55%);
  pointer-events: none;
}
.contacto__list {
  position: relative;
  display: flex;
  flex-direction: column;
}
.contacto__list div {
  padding: 1.25rem 0;
  border-bottom: 1px solid color-mix(in oklab, var(--paper) 20%, transparent);
  display: block;
}
.contacto__list div:first-child { padding-top: 0; }
.contacto__list div:last-child { border-bottom: 0; }
.contacto__list dt {
  font-family: var(--f-mono);
  font-size: .72rem;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: color-mix(in oklab, var(--paper) 60%, transparent);
  display: block;
  margin-bottom: .5rem;
}
.contacto__list dd {
  display: block;
  font-family: var(--f-display);
  font-variation-settings: "opsz" 60, "wght" 400, "SOFT" 30;
  font-size: var(--step-2);
  line-height: 1.2;
}
.contacto__list dd a:hover { color: var(--celeste); }

.contacto__stamp {
  margin-top: 1.5rem;
  display: flex;
  justify-content: flex-end;
}
.stamp {
  width: 110px; height: 110px;
  border: 2px solid var(--celeste);
  border-radius: 100px;
  display: grid;
  place-items: center;
  grid-template-rows: auto auto auto auto;
  text-align: center;
  padding: .75rem;
  position: relative;
  transform: rotate(-8deg);
  color: var(--celeste);
  font-family: var(--f-mono);
  font-size: .65rem;
  letter-spacing: .1em;
  text-transform: uppercase;
}
.stamp strong {
  font-family: var(--f-display);
  font-variation-settings: "opsz" 144, "wght" 600, "SOFT" 40;
  font-size: 2.2rem;
  line-height: 1;
  color: var(--celeste);
}
.stamp small { font-size: .55rem; opacity: .8; }

/* form */
.contacto__form {
  display: grid;
  gap: 1.25rem;
}
.field { display: grid; gap: .4rem; }
.field label {
  font-family: var(--f-mono);
  font-size: .72rem;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--mute);
}
.field input, .field textarea, .field select {
  background: transparent;
  border: 0;
  border-bottom: 1.5px solid var(--ink);
  padding: .65rem 0;
  font-family: var(--f-body);
  font-size: var(--step-1);
  color: var(--ink);
  transition: border-color .3s var(--ease);
  border-radius: 0;
  appearance: none;
}
.field input:focus, .field textarea:focus, .field select:focus {
  outline: none;
  border-color: var(--accent);
}
.field textarea { resize: vertical; min-height: 96px; }
.field select {
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'><path d='M1 1 L6 6 L11 1' fill='none' stroke='%231A1512' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/></svg>");
  background-repeat: no-repeat;
  background-position: right .25rem center;
  background-size: 12px 8px;
  padding-right: 1.5rem;
}
.field--two {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 1.25rem;
}
.field--two > div { display: grid; gap: .4rem; }

.submit {
  justify-self: start;
  display: inline-flex;
  align-items: center;
  gap: .65rem;
  padding: .85rem 1.4rem;
  background: var(--ink);
  color: var(--paper);
  border-radius: 100px;
  font-family: var(--f-body);
  font-size: .95rem;
  letter-spacing: .01em;
  transition: background .3s var(--ease), transform .3s var(--ease), box-shadow .3s var(--ease);
}
.submit:hover {
  background: var(--accent);
  transform: translateY(-1px);
  box-shadow: 0 10px 25px -10px rgba(43,143,186,.55);
}
.submit svg { width: 18px; height: 18px; }
.form__hint {
  font-family: var(--f-mono);
  font-size: .78rem;
  color: var(--celeste-2);
  min-height: 1em;
}
.form__hint.is-err { color: var(--accent); }

/* ---------- FOOTER ---------- */
.foot {
  background: var(--paper-2);
  border-top: 1px solid var(--rule);
  padding: clamp(3rem, 5vw, 5rem) var(--gutter) 1.5rem;
  position: relative;
  z-index: 2;
}
.foot__mark {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  align-items: flex-start;
  margin-bottom: 3rem;
}
.foot__mark .wordmark b { color: var(--celeste); }
.foot__tag {
  font-family: var(--f-display);
  font-style: italic;
  font-variation-settings: "opsz" 144, "wght" 380, "SOFT" 80;
  color: var(--ink-2);
  font-size: var(--step-2);
  max-width: 32ch;
}
.foot__cols {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 2rem;
  padding: 2rem 0;
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
}
.foot__cols h4 {
  font-family: var(--f-mono);
  font-size: .72rem;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--mute);
  margin-bottom: .75rem;
}
.foot__cols p { color: var(--ink-2); }
.foot__cols a:hover { color: var(--accent); }
.foot__base {
  padding-top: 1.5rem;
  display: flex;
  flex-wrap: wrap;
  gap: 1rem 2rem;
  justify-content: space-between;
  font-family: var(--f-mono);
  font-size: .72rem;
  letter-spacing: .1em;
  color: var(--mute);
  text-transform: uppercase;
}

/* ---------- CURSOR ---------- */
.cursor-dot {
  position: fixed;
  width: 12px; height: 12px;
  border-radius: 100px;
  background: var(--accent);
  mix-blend-mode: multiply;
  pointer-events: none;
  z-index: 100;
  transform: translate(-50%, -50%) scale(0);
  transition: transform .35s var(--ease), background .3s var(--ease);
  opacity: .85;
}
body.is-pointing .cursor-dot { transform: translate(-50%, -50%) scale(1); }
body.is-hovering .cursor-dot { transform: translate(-50%, -50%) scale(2.2); background: var(--celeste); }

/* ---------- REVEAL ANIMATIONS ---------- */
/* Progressive enhancement: only hide reveals when JS is active,
   so users without JS (or headless crawlers) still see the page. */
.js .reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity .9s var(--ease), transform .9s var(--ease);
  transition-delay: var(--d, 0s);
}
.js .reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* Hero renders immediately — scroll reveals handle the rest */
.js .hero .reveal { opacity: 1; transform: none; animation: none; transition: none; }

/* ---------- RESPONSIVE ---------- */
@media (max-width: 1024px) {
  .hero { grid-template-columns: 1fr; }
  .hero__radiator { grid-column: 1 / -1; grid-row: auto; justify-self: center; margin-top: 2rem; }
  .hero__title .line:nth-child(2) { padding-left: clamp(1rem, 5vw, 3rem); }
  .producto__grid { grid-template-columns: 1fr; }
  .diagram { position: relative; top: 0; }
  .contacto__grid { grid-template-columns: 1fr; }
  .models__head { display: none; }
  .model {
    grid-template-columns: 1fr 1fr;
    grid-template-areas:
      "code dim"
      "depth use"
      "cta cta";
    gap: .5rem 1rem;
  }
  .model__code { grid-area: code; }
  .model__dim { grid-area: dim; text-align: right; }
  .model__depth { grid-area: depth; }
  .model__use { grid-area: use; }
  .model__cta { grid-area: cta; padding-top: .5rem; }
}

@media (max-width: 768px) {
  .nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
    padding: .7rem var(--gutter);
  }
  .nav__mark .wordmark__tag { display: none; }
  .nav__links, .nav__cta { display: none; }
  .nav__burger { display: inline-block; flex-shrink: 0; }
  .nav.is-open .nav__links {
    display: flex;
    position: absolute;
    top: 100%;
    left: 0; right: 0;
    flex-direction: column;
    background: var(--paper);
    border-bottom: 1px solid var(--rule);
    padding: 1rem var(--gutter) 1.5rem;
    gap: 1rem;
  }
  .nav.is-open .nav__cta {
    display: inline-flex;
    position: absolute;
    top: calc(100% + 220px);
    left: var(--gutter);
  }
  .hero__spec dl { grid-template-columns: 1fr 1fr; }
  .hero__title .line:nth-child(2) { padding-left: 1rem; }
  .hero__scroll { display: none; }
  .producto__header, .beneficios .section-head, .modelos .section-head, .contacto__intro {
    grid-template-columns: 1fr;
  }
  .producto__header .eyebrow, .beneficios .eyebrow, .modelos .eyebrow, .contacto__intro .eyebrow { padding-top: 0; }
  .pillars { grid-template-columns: 1fr; }
  .porque__closer { text-align: left; }
  .foot__base { font-size: .65rem; }
  .cursor-dot { display: none; }
}

@media (max-width: 480px) {
  .hero__spec dl { grid-template-columns: 1fr 1fr; }
  .manifesto__title { font-size: clamp(2.75rem, 14vw, 5rem); }
  .contacto__card { padding: 1.75rem; }
  .bene { padding: 1.5rem 1.25rem 1.75rem; }
}

/* ============================================================
   FASE 2 — B2B sections
   ============================================================ */

/* ---------- BUTTONS (utility) ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: .6rem;
  padding: .9rem 1.35rem;
  font-family: var(--f-body);
  font-size: .95rem;
  letter-spacing: .01em;
  border-radius: 100px;
  border: 1.5px solid currentColor;
  transition: background .3s var(--ease), color .3s var(--ease), transform .3s var(--ease), border-color .3s var(--ease);
  cursor: pointer;
  line-height: 1;
}
.btn svg { width: 16px; height: 16px; }
.btn--primary {
  background: var(--ink);
  color: var(--paper);
  border-color: var(--ink);
}
.btn--primary:hover {
  background: var(--celeste-2);
  border-color: var(--celeste-2);
  transform: translateY(-1px);
}
.btn--ghost {
  background: transparent;
  color: var(--ink);
  border-color: var(--ink);
}
.btn--ghost:hover {
  background: var(--ink);
  color: var(--paper);
}
.btn--on-dark {
  color: var(--paper);
  border-color: var(--paper);
}
.btn--on-dark.btn--primary {
  background: var(--paper);
  color: var(--ink);
}
.btn--on-dark.btn--primary:hover {
  background: var(--celeste);
  color: var(--ink);
  border-color: var(--celeste);
}
.btn--on-dark.btn--ghost:hover {
  background: var(--paper);
  color: var(--ink);
}

/* ---------- CALCULADORA ---------- */
.calc {
  max-width: var(--max);
  margin: 0 auto;
  padding: clamp(3rem, 6vw, 6rem) var(--gutter);
}
.calc__head {
  border-top: 1px solid var(--rule);
  padding-top: 1.5rem;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1rem 2rem;
  align-items: baseline;
  margin-bottom: clamp(2rem, 4vw, 3rem);
}
.calc__head .eyebrow { padding-top: .5rem; }
.calc__head .section-title { grid-column: 2; }
.calc__head .section-sub { grid-column: 2; }

.calc__panel {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
  gap: 0;
  border: 1px solid var(--ink);
  border-radius: 3px;
  overflow: hidden;
  background: var(--paper-2);
}

.calc__form {
  padding: clamp(1.5rem, 3vw, 2.5rem);
  display: grid;
  gap: 2rem;
  background: var(--paper);
  border-right: 1px solid var(--ink);
}
.calc__field {
  border: 0;
  padding: 0;
  margin: 0;
}
.calc__field legend {
  font-family: var(--f-mono);
  font-size: .72rem;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--mute);
  margin-bottom: .75rem;
  padding: 0;
}
.calc__slider {
  display: flex;
  align-items: center;
  gap: 1.25rem;
}
.calc__slider input[type="range"] {
  flex: 1;
  -webkit-appearance: none;
  appearance: none;
  height: 2px;
  background: var(--ink);
  outline: none;
  cursor: pointer;
  margin: 0;
}
.calc__slider input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 22px; height: 22px;
  border-radius: 50%;
  background: var(--celeste);
  border: 2px solid var(--ink);
  cursor: pointer;
  transition: transform .2s var(--ease), background .2s var(--ease);
}
.calc__slider input[type="range"]::-webkit-slider-thumb:hover { transform: scale(1.12); }
.calc__slider input[type="range"]::-moz-range-thumb {
  width: 22px; height: 22px;
  border-radius: 50%;
  background: var(--celeste);
  border: 2px solid var(--ink);
  cursor: pointer;
}
.calc__slider output {
  font-family: var(--f-display);
  font-variation-settings: "opsz" 60, "wght" 500, "SOFT" 30;
  font-size: 1.35rem;
  color: var(--ink);
  min-width: 5rem;
  text-align: right;
}
.calc__slider output span { color: var(--celeste-2); }

.calc__presets {
  margin-top: .75rem;
  display: flex;
  flex-wrap: wrap;
  gap: .4rem;
}
.calc__presets button {
  font-family: var(--f-mono);
  font-size: .72rem;
  letter-spacing: .08em;
  text-transform: uppercase;
  padding: .35rem .65rem;
  border: 1px solid var(--rule);
  border-radius: 2px;
  color: var(--ink-2);
  background: transparent;
  cursor: pointer;
  transition: background .2s var(--ease), color .2s var(--ease), border-color .2s var(--ease);
}
.calc__presets button:hover {
  background: var(--ink);
  color: var(--paper);
  border-color: var(--ink);
}

.calc__radios {
  display: grid;
  gap: .5rem;
}
.calc__radios--compact {
  grid-template-columns: repeat(3, 1fr);
  gap: .4rem;
}
.calc__radios label {
  display: flex;
  flex-direction: column;
  gap: .15rem;
  padding: .85rem 1rem;
  border: 1px solid var(--rule);
  border-radius: 2px;
  cursor: pointer;
  background: transparent;
  transition: background .2s var(--ease), border-color .2s var(--ease);
  position: relative;
}
.calc__radios--compact label {
  padding: .7rem .5rem;
  text-align: center;
  align-items: center;
}
.calc__radios label input { position: absolute; opacity: 0; pointer-events: none; }
.calc__radios label span {
  font-size: .95rem;
  color: var(--ink);
  font-weight: 500;
}
.calc__radios label small {
  font-size: .75rem;
  color: var(--mute);
  line-height: 1.3;
}
.calc__radios label:has(input:checked) {
  background: var(--ink);
  border-color: var(--ink);
}
.calc__radios label:has(input:checked) span { color: var(--paper); }
.calc__radios label:has(input:checked) small { color: color-mix(in oklab, var(--paper) 70%, transparent); }
.calc__radios label:hover { border-color: var(--ink); }

.calc__field--dual {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
}
.calc__field--dual legend { margin-bottom: .75rem; }

.calc__result {
  padding: clamp(1.5rem, 3vw, 2.5rem);
  background: var(--ink);
  color: var(--paper);
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  position: relative;
}
.calc__result::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 80% 50% at 100% 0%, color-mix(in oklab, var(--celeste) 35%, transparent), transparent 60%);
  pointer-events: none;
}
.calc__result-block { position: relative; }
.calc__label {
  font-family: var(--f-mono);
  font-size: .72rem;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: color-mix(in oklab, var(--paper) 60%, transparent);
  margin-bottom: .5rem;
}
.calc__watts {
  font-family: var(--f-display);
  font-variation-settings: "opsz" 144, "wght" 380, "SOFT" 30;
  font-size: clamp(2.6rem, 5vw, 3.8rem);
  line-height: 1;
  color: var(--celeste);
  letter-spacing: -.02em;
}
.calc__watts i {
  font-family: var(--f-mono);
  font-style: normal;
  font-size: 1rem;
  color: color-mix(in oklab, var(--paper) 60%, transparent);
  letter-spacing: .05em;
  margin-left: .2em;
}
.calc__btu {
  font-family: var(--f-mono);
  font-size: .85rem;
  color: color-mix(in oklab, var(--paper) 65%, transparent);
  margin-top: .35rem;
}
.calc__count {
  font-family: var(--f-display);
  font-variation-settings: "opsz" 60, "wght" 400, "SOFT" 30;
  font-size: clamp(1.5rem, 3vw, 2rem);
  line-height: 1.1;
  color: var(--paper);
}
.calc__count span[data-out="count"] {
  color: var(--celeste);
  font-family: var(--f-display);
  font-variation-settings: "opsz" 144, "wght" 500, "SOFT" 10;
  margin-right: .15em;
}
.calc__count span[data-out="model"] {
  font-family: var(--f-mono);
  font-size: .75em;
  letter-spacing: .02em;
  color: var(--paper);
}
.calc__total {
  margin-top: .5rem;
  font-family: var(--f-mono);
  font-size: .85rem;
  color: color-mix(in oklab, var(--paper) 70%, transparent);
}
.calc__total span { color: var(--paper); font-weight: 500; }
.calc__cta {
  display: inline-flex;
  align-items: center;
  gap: .6rem;
  padding: .9rem 1.25rem;
  background: var(--celeste);
  color: var(--ink);
  border-radius: 2px;
  font-size: .9rem;
  letter-spacing: .01em;
  transition: background .25s var(--ease), transform .25s var(--ease);
  margin-top: auto;
  align-self: flex-start;
}
.calc__cta:hover {
  background: var(--paper);
  transform: translateY(-1px);
}
.calc__cta svg { width: 16px; height: 16px; }
.calc__note {
  font-family: var(--f-mono);
  font-size: .7rem;
  color: color-mix(in oklab, var(--paper) 55%, transparent);
  line-height: 1.5;
}

/* ---------- SPECS / FICHA TÉCNICA ---------- */
.specs {
  max-width: var(--max);
  margin: 0 auto;
  padding: clamp(3rem, 6vw, 6rem) var(--gutter);
}
.specs__head {
  border-top: 1px solid var(--rule);
  padding-top: 1.5rem;
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr);
  gap: 2rem;
  margin-bottom: clamp(2rem, 4vw, 3rem);
  align-items: end;
}
.specs__actions {
  display: flex;
  flex-wrap: wrap;
  gap: .75rem;
  justify-content: flex-end;
}
.specs__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.2fr);
  gap: clamp(2rem, 4vw, 4rem);
  padding: clamp(1.75rem, 3vw, 2.5rem);
  background: var(--paper-2);
  border: 1px solid var(--rule);
  border-radius: 3px;
}
.specs__grid h3 {
  font-family: var(--f-display);
  font-variation-settings: "opsz" 60, "wght" 500, "SOFT" 30;
  font-size: var(--step-2);
  line-height: 1.1;
  margin: 0 0 1rem;
  padding-bottom: .5rem;
  border-bottom: 1px solid var(--rule);
  color: var(--ink);
}
.specs__shared h3:not(:first-child) { margin-top: 2.25rem; }
.specs__shared dl {
  display: grid;
  gap: 0;
}
.specs__shared dl > div {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 1rem;
  padding: .65rem 0;
  border-bottom: 1px dashed color-mix(in oklab, var(--rule) 70%, transparent);
}
.specs__shared dl > div:last-child { border-bottom: 0; }
.specs__shared dt {
  font-family: var(--f-mono);
  font-size: .75rem;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--mute);
}
.specs__shared dd {
  font-size: .92rem;
  color: var(--ink);
  text-align: right;
  font-weight: 500;
}

.specs__table {
  width: 100%;
  border-collapse: collapse;
  font-family: var(--f-mono);
  font-size: .85rem;
}
.specs__table th, .specs__table td {
  padding: .85rem .75rem;
  text-align: left;
  border-bottom: 1px solid var(--rule);
}
.specs__table th {
  font-size: .72rem;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--mute);
  font-weight: 500;
  vertical-align: bottom;
}
.specs__table th i {
  font-style: normal;
  font-size: .62rem;
  color: var(--mute);
  display: block;
  margin-top: .15rem;
  letter-spacing: .06em;
}
.specs__table td:first-child { font-weight: 500; color: var(--ink); }
.specs__table td:nth-child(3) { color: var(--celeste-2); font-weight: 500; }
.specs__table tr.is-hi { background: color-mix(in oklab, var(--celeste) 12%, var(--paper-2)); }
.specs__table tr.is-hi td:first-child::before { content: "★ "; color: var(--accent); }

.specs__note-pre, .specs__footnote {
  font-family: var(--f-mono);
  font-size: .75rem;
  color: var(--mute);
  margin: .5rem 0 1rem;
}
.specs__note-pre code {
  background: var(--celeste);
  color: var(--paper);
  padding: .1em .45em;
  border-radius: 2px;
  font-weight: 500;
}
.specs__list {
  margin: 0;
  padding: 0;
  list-style: none;
}
.specs__list li {
  padding: .65rem 0 .65rem 1.5rem;
  border-bottom: 1px dashed color-mix(in oklab, var(--rule) 70%, transparent);
  position: relative;
  font-size: .92rem;
  color: var(--ink-2);
}
.specs__list li::before {
  content: "→";
  position: absolute;
  left: 0;
  color: var(--celeste-2);
  font-family: var(--f-mono);
}
.specs__list li:last-child { border-bottom: 0; }

/* ---------- PARA OBRA ---------- */
.obrapitch {
  background: linear-gradient(180deg, #0E1419 0%, #070A0E 100%);
  color: var(--paper);
  margin-top: clamp(3rem, 6vw, 5rem);
  position: relative;
  overflow: hidden;
}
.obrapitch::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 60% 40% at 15% 15%, rgba(43,143,186,.22), transparent 55%),
    radial-gradient(ellipse 50% 40% at 85% 85%, rgba(122,30,43,.18), transparent 55%);
  pointer-events: none;
}
.obrapitch__inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: clamp(4rem, 8vw, 8rem) var(--gutter);
  position: relative;
}
.obrapitch__head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 1rem 2rem;
  align-items: baseline;
  border-top: 1px solid color-mix(in oklab, var(--paper) 20%, transparent);
  padding-top: 1.5rem;
  margin-bottom: clamp(2.5rem, 5vw, 4rem);
}
.obrapitch__head .eyebrow { padding-top: .4rem; }
.obrapitch__title {
  grid-column: 2;
  font-family: var(--f-display);
  font-variation-settings: "opsz" 144, "wght" 340, "SOFT" 20;
  font-size: var(--step-5);
  line-height: .95;
  letter-spacing: -.035em;
  margin: .5rem 0 1.25rem;
}
.obrapitch__title em {
  font-style: italic;
  font-variation-settings: "opsz" 144, "wght" 340, "SOFT" 100;
  color: var(--celeste);
}
.obrapitch__lead {
  grid-column: 2;
  max-width: 62ch;
  color: color-mix(in oklab, var(--paper) 78%, transparent);
  font-size: var(--step-1);
}

.pitch-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 0;
  border-top: 1px solid color-mix(in oklab, var(--paper) 18%, transparent);
  border-bottom: 1px solid color-mix(in oklab, var(--paper) 18%, transparent);
  margin: 0 0 clamp(2.5rem, 5vw, 4rem);
}
.pitch-stat {
  padding: 2rem 2rem;
  border-right: 1px solid color-mix(in oklab, var(--paper) 18%, transparent);
}
.pitch-stat:first-child { padding-left: 0; }
.pitch-stat:last-child { border-right: 0; padding-right: 0; }
.pitch-stat__num {
  display: block;
  font-family: var(--f-display);
  font-variation-settings: "opsz" 144, "wght" 360, "SOFT" 10;
  font-size: clamp(2.5rem, 5vw, 4rem);
  line-height: 1;
  color: var(--celeste);
  letter-spacing: -.025em;
  margin-bottom: .25rem;
}
.pitch-stat__unit {
  display: block;
  font-family: var(--f-mono);
  font-size: .72rem;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: color-mix(in oklab, var(--paper) 65%, transparent);
  margin-bottom: 1rem;
}
.pitch-stat p {
  color: color-mix(in oklab, var(--paper) 75%, transparent);
  font-size: .92rem;
  max-width: 32ch;
  line-height: 1.5;
}

.pitch-cols {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: clamp(1.5rem, 3vw, 3rem);
  margin-bottom: clamp(2.5rem, 5vw, 4rem);
}
.pitch-col {
  padding: 1.75rem;
  border: 1px solid color-mix(in oklab, var(--paper) 18%, transparent);
  background: color-mix(in oklab, var(--paper) 4%, transparent);
  border-radius: 2px;
}
.pitch-col h3 {
  font-family: var(--f-display);
  font-variation-settings: "opsz" 60, "wght" 400, "SOFT" 30;
  font-size: var(--step-2);
  line-height: 1.1;
  margin: 0 0 1rem;
  color: var(--paper);
}
.pitch-col ul {
  margin: 0;
  padding: 0;
  list-style: none;
}
.pitch-col li {
  padding: .6rem 0 .6rem 1.5rem;
  position: relative;
  font-size: .92rem;
  color: color-mix(in oklab, var(--paper) 80%, transparent);
  border-bottom: 1px dashed color-mix(in oklab, var(--paper) 15%, transparent);
}
.pitch-col li:last-child { border-bottom: 0; }
.pitch-col li::before {
  content: "◆";
  position: absolute;
  left: 0;
  color: var(--celeste);
  font-size: .7em;
  top: .9rem;
}

.pitch-cta {
  display: flex;
  flex-wrap: wrap;
  gap: .75rem;
}

/* ---------- OBRAS ENTREGADAS ---------- */
.obras {
  max-width: var(--max);
  margin: 0 auto;
  padding: clamp(3rem, 6vw, 6rem) var(--gutter);
}
.obras .section-head {
  border-top: 1px solid var(--rule);
  padding-top: 1.5rem;
  padding-left: 0; padding-right: 0;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1rem 2rem;
  align-items: baseline;
  margin-bottom: clamp(2rem, 4vw, 3rem);
}
.obras__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.25rem;
}
.obra-card {
  border: 1px solid var(--rule);
  background: var(--paper-2);
  border-radius: 2px;
  overflow: hidden;
  transition: transform .4s var(--ease), box-shadow .4s var(--ease), border-color .4s var(--ease);
}
.obra-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 20px 40px -25px rgba(11,16,24,.4);
  border-color: var(--ink);
}
.obra-card__visual {
  aspect-ratio: 5 / 3;
  position: relative;
  overflow: hidden;
  background: var(--ink);
}
.obra-card__visual svg {
  width: 100%; height: 100%;
  display: block;
}
.obra-card__code {
  position: absolute;
  top: .75rem; left: .75rem;
  font-family: var(--f-mono);
  font-size: .68rem;
  letter-spacing: .12em;
  color: var(--paper);
  background: rgba(11,16,24,.55);
  padding: .28rem .5rem;
  border-radius: 2px;
  backdrop-filter: blur(4px);
}
.obra-card__body { padding: 1.5rem; }
.obra-card__year {
  font-family: var(--f-mono);
  font-size: .72rem;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--celeste-2);
  margin-bottom: .5rem;
}
.obra-card h3 {
  font-family: var(--f-display);
  font-variation-settings: "opsz" 60, "wght" 500, "SOFT" 30;
  font-size: var(--step-2);
  line-height: 1.1;
  color: var(--ink);
  margin: 0 0 .3rem;
}
.obra-card__loc {
  font-size: .88rem;
  color: var(--ink-2);
  margin-bottom: 1.25rem;
}
.obra-card__data {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: .5rem 1rem;
  padding-top: 1rem;
  border-top: 1px solid var(--rule);
}
.obra-card__data > div { display: block; }
.obra-card__data dt {
  display: block;
  font-family: var(--f-mono);
  font-size: .65rem;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--mute);
  margin-bottom: .2rem;
}
.obra-card__data dd {
  display: block;
  font-size: .9rem;
  color: var(--ink);
  font-weight: 500;
}
.obras__disclaimer {
  margin-top: 2rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--rule);
  font-family: var(--f-mono);
  font-size: .75rem;
  color: var(--mute);
  max-width: 70ch;
}
.obras__disclaimer a { color: var(--celeste-2); border-bottom: 1px solid currentColor; padding-bottom: 1px; }

/* ---------- Models table — added power column ---------- */
.model__power {
  font-family: var(--f-mono);
  font-size: 1rem;
  color: var(--celeste-2);
  font-weight: 500;
}
.model__power i {
  font-style: normal;
  font-size: .7rem;
  color: var(--mute);
  margin-left: .3em;
  letter-spacing: .05em;
}
.model__dim i {
  font-style: normal;
  font-family: var(--f-mono);
  font-size: .65rem;
  color: var(--mute);
  margin-left: .3em;
  letter-spacing: .08em;
  vertical-align: middle;
}

/* ---------- FLOATING WHATSAPP ---------- */
.wa {
  position: fixed;
  right: clamp(1rem, 3vw, 2rem);
  bottom: clamp(1rem, 3vw, 2rem);
  z-index: 50;
  display: inline-flex;
  align-items: center;
  gap: .65rem;
  padding: .75rem 1rem .75rem .85rem;
  background: #25D366;
  color: var(--paper);
  border-radius: 100px;
  box-shadow:
    0 12px 28px -10px rgba(37,211,102,.55),
    0 4px 10px -4px rgba(11,16,24,.35);
  transition: transform .3s var(--ease), box-shadow .3s var(--ease);
}
.wa::before {
  content: "";
  position: absolute;
  inset: -8px;
  border-radius: 100px;
  background: rgba(37,211,102,.35);
  z-index: -1;
  animation: waPulse 2.4s ease-out infinite;
}
@keyframes waPulse {
  0%   { transform: scale(.85); opacity: .7; }
  80%  { transform: scale(1.15); opacity: 0; }
  100% { transform: scale(1.15); opacity: 0; }
}
.wa:hover {
  transform: translateY(-2px) scale(1.03);
  box-shadow:
    0 16px 32px -8px rgba(37,211,102,.65),
    0 6px 14px -4px rgba(11,16,24,.4);
}
.wa__icon {
  width: 26px; height: 26px;
  flex-shrink: 0;
}
.wa__label {
  font-family: var(--f-body);
  font-size: .88rem;
  font-weight: 500;
  letter-spacing: .01em;
  padding-right: .25rem;
}

/* ---------- PRINT — ficha técnica PDF ---------- */
@media print {
  body { background: #fff; color: #000; }
  body::before, .grain, .cursor-dot, .wa, .nav, .marquee,
  .hero, .manifesto, .producto, .beneficios, .calc, .modelos,
  .obrapitch, .obras, .porque, .contacto, .foot {
    display: none !important;
  }
  .specs {
    display: block !important;
    padding: 1cm;
    max-width: 100%;
  }
  .specs .specs__head { border: 0; display: block; margin-bottom: 1cm; }
  .specs__actions { display: none !important; }
  .specs .section-title {
    font-size: 28pt;
    color: #000;
  }
  .specs .section-title em { color: #333; }
  .specs__grid {
    display: block;
    padding: 0;
    background: transparent;
    border: 0;
    color: #000;
  }
  .specs__grid h3 {
    font-size: 14pt;
    color: #000;
    margin: .6cm 0 .3cm;
    border-bottom: 1pt solid #000;
  }
  .specs__shared dl > div {
    border-bottom: 1pt dashed #999;
    padding: 4pt 0;
  }
  .specs__table { font-size: 10pt; }
  .specs__table th { color: #000; border-bottom: 1pt solid #000; }
  .specs__table td { color: #000; }
  .specs__table tr.is-hi { background: #eee; }
  .print-header {
    display: block !important;
    border-bottom: 2pt solid #000;
    padding-bottom: .5cm;
    margin-bottom: .5cm;
  }
}
.print-header { display: none; }

/* ---------- RESPONSIVE — Fase 2 ---------- */
@media (max-width: 1024px) {
  .calc__panel { grid-template-columns: 1fr; }
  .calc__form { border-right: 0; border-bottom: 1px solid var(--ink); }
  .specs__grid { grid-template-columns: 1fr; }
  .specs__head { grid-template-columns: 1fr; }
  .specs__actions { justify-content: flex-start; }
  .obrapitch__head { grid-template-columns: 1fr; }
  .obrapitch__title, .obrapitch__lead { grid-column: 1; }
  .pitch-stats { grid-template-columns: repeat(2, 1fr); }
  .pitch-stat { border-right: 1px solid color-mix(in oklab, var(--paper) 18%, transparent); padding: 2rem; }
  .pitch-stat:nth-child(2n+1) { padding-left: 0; }
  .pitch-stat:nth-child(2n) { border-right: 0; padding-right: 0; }
  .pitch-stat:nth-child(-n+2) { border-bottom: 1px solid color-mix(in oklab, var(--paper) 18%, transparent); }
}

@media (max-width: 768px) {
  .calc__head { grid-template-columns: 1fr; }
  .calc__head .section-title, .calc__head .section-sub { grid-column: 1; }
  .calc__head .eyebrow { padding-top: 0; }
  .calc__field--dual { grid-template-columns: 1fr; gap: 1.5rem; }
  .calc__radios--compact { grid-template-columns: repeat(3, 1fr); }
  .pitch-stats { grid-template-columns: 1fr; }
  .pitch-stat { border-right: 0 !important; border-bottom: 1px solid color-mix(in oklab, var(--paper) 18%, transparent); padding: 1.75rem 0; }
  .pitch-stat:last-child { border-bottom: 0; }
  .specs__table { font-size: .75rem; }
  .specs__table th, .specs__table td { padding: .5rem .4rem; }
  .obras .section-head { grid-template-columns: 1fr; }
  .wa__label { display: none; }
  .wa { padding: .85rem; }
  .wa::before { inset: -6px; }
}

@media (max-width: 480px) {
  .calc__radios--compact { grid-template-columns: 1fr 1fr 1fr; font-size: .85rem; }
  .specs__table th, .specs__table td:nth-child(5), .specs__table td:nth-child(6) { display: none; }
  .specs__table th:nth-child(5), .specs__table th:nth-child(6) { display: none; }
}

/* ---------- PREFERENCES ---------- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
    scroll-behavior: auto !important;
  }
  .reveal { opacity: 1; transform: none; }
  .marquee__track { animation: none; }
  .radiator__shimmer::before, .radiator__heat span { animation: none; }
}