/* =========================================================
   Samai Hidro — Design System v2
   Paleta: oscuro (#07151b) · blanco · celeste (#09bbfe) · menta (#75f8d2)
   Tipografía: Poppins (títulos) · Roboto (cuerpo)
   ========================================================= */

:root {
  --primary:   #09bbfe;
  --secondary: #75f8d2;
  --accent:    #2ae3fc;
  --dark:      #07151b;
  --dark-2:    #0d2535;
  --ink:       #07151b;
  --muted:     #5a7078;
  --light:     #f4fafc;
  --line:      rgba(9,187,254,.18);
  --line-dark: rgba(255,255,255,.14);
  --white:     #ffffff;
  --max:       1160px;
  --ease:      cubic-bezier(.22,.84,.22,1);
  --ease-back: cubic-bezier(.34,1.56,.64,1);
  --font-body: 'Roboto', Arial, Helvetica, sans-serif;
  --font-head: 'Poppins', Arial, Helvetica, sans-serif;
  --glow:      0 0 32px rgba(9,187,254,.22), 0 8px 24px rgba(9,187,254,.14);
  --glow-lg:   0 0 60px rgba(9,187,254,.28), 0 16px 48px rgba(9,187,254,.16);
}

/* ── Keyframes ───────────────────────────────────────────── */
@keyframes heroGradient {
  0%   { background-position: 0% 50% }
  50%  { background-position: 100% 50% }
  100% { background-position: 0% 50% }
}
@keyframes heroBlob1 {
  0%, 100% { transform: translate(0,0) scale(1) }
  33%       { transform: translate(40px,-30px) scale(1.08) }
  66%       { transform: translate(-20px,20px) scale(.94) }
}
@keyframes heroBlob2 {
  0%, 100% { transform: translate(0,0) scale(1) }
  33%       { transform: translate(-35px,25px) scale(1.06) }
  66%       { transform: translate(22px,-18px) scale(.96) }
}
@keyframes float {
  0%, 100% { transform: translateY(0) }
  50%       { transform: translateY(-8px) }
}
@keyframes floatSlow {
  0%, 100% { transform: translateY(0) }
  50%       { transform: translateY(-5px) }
}
@keyframes pulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(9,187,254,.5), 0 0 0 5px rgba(9,187,254,.18) }
  50%       { box-shadow: 0 0 0 8px rgba(9,187,254,.0), 0 0 0 5px rgba(9,187,254,.18) }
}
@keyframes shimmer {
  0%   { background-position: -200% center }
  100% { background-position: 200% center }
}
@keyframes waterRise {
  0%   { clip-path: inset(80% 0 0 0) }
  100% { clip-path: inset(0% 0 0 0) }
}
@keyframes lineGrow {
  from { transform: scaleX(0) }
  to   { transform: scaleX(1) }
}
@keyframes fadeUp {
  from { opacity:0; transform:translateY(18px) }
  to   { opacity:1; transform:translateY(0) }
}
@keyframes gridScan {
  0%   { transform: translateY(-100%) }
  100% { transform: translateY(100vh) }
}
@keyframes rotateOrbit {
  from { transform: rotate(0deg) }
  to   { transform: rotate(360deg) }
}
@keyframes blink {
  0%, 100% { opacity: 1 }
  50%       { opacity: 0 }
}
@keyframes heroImageFloat {
  0%, 100% { transform: rotate(-1.6deg) translateY(0) }
  50%      { transform: rotate(1.6deg) translateY(-10px) }
}

/* ── Reset ─────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box }
html {
  scroll-behavior: smooth;
  scroll-padding-top: 88px;
}
body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.6;
  color: var(--ink);
  background: #fff;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img  { max-width: 100%; display: block }
a    { color: inherit; text-decoration: none }
button, input, select, textarea { font: inherit }

/* ── Layout ─────────────────────────────────────────────── */
.container { width: min(var(--max), calc(100% - 48px)); margin-inline: auto }
.section    { padding: 108px 0; position: relative; overflow: hidden }

/* ── Utilities ───────────────────────────────────────────── */
.sr-only {
  position: absolute; width: 1px; height: 1px;
  clip: rect(0 0 0 0); overflow: hidden; white-space: nowrap;
}
.skip-link {
  position: absolute; left: -999px; top: 16px;
  background: var(--primary); color: var(--dark); padding: 10px 14px; z-index: 999;
}
.skip-link:focus { left: 16px }
::selection { background: var(--primary); color: var(--dark) }

/* ── Section backgrounds ─────────────────────────────────── */
.section-light {
  background: linear-gradient(180deg, #ffffff 0%, var(--light) 100%);
}
.section-dark {
  background: linear-gradient(135deg, var(--dark) 0%, var(--dark-2) 55%, #0a1e2b 100%);
  color: #fff;
  position: relative;
}
.section-dark::before {
  content: "";
  position: absolute; inset: 0; pointer-events: none;
  background:
    radial-gradient(ellipse at 85% 8%, rgba(9,187,254,.18), transparent 36%),
    radial-gradient(ellipse at 12% 88%, rgba(42,227,252,.12), transparent 32%);
}
.section-dark-soft {
  background: linear-gradient(135deg, #0b202a 0%, #112c38 100%);
  color: #fff;
}

/* ── Typography ──────────────────────────────────────────── */
h1, h2, h3, h4, h5, h6 { font-family: var(--font-head); margin: 0 }

.eyebrow {
  display: inline-flex; align-items: center; gap: 10px;
  margin: 0 0 40px;
  font-family: var(--font-head);
  font-size: 11px; font-weight: 500;
  letter-spacing: .13em; text-transform: uppercase;
  color: var(--primary);
}
.eyebrow span {
  width: 18px; height: 1px;
  background: linear-gradient(90deg, var(--accent), var(--primary), var(--secondary));
  background-size: 200% auto;
  animation: shimmer 3s linear infinite;
}
.eyebrow.dark { color: #1186a0 }

/* ── Buttons ─────────────────────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  min-height: 52px; padding: 13px 24px;
  font-family: var(--font-head);
  font-size: 14px; font-weight: 600; letter-spacing: .02em;
  border: 1px solid transparent; border-radius: 0; cursor: pointer;
  position: relative; overflow: hidden;
  transition: transform .25s var(--ease-back), box-shadow .25s var(--ease), background .25s var(--ease), border-color .25s var(--ease), color .25s var(--ease);
}
.btn::after {
  content: "";
  position: absolute; inset: 0;
  background: rgba(255,255,255,.12);
  opacity: 0;
  transition: opacity .22s var(--ease);
}
.btn:hover { transform: translateY(-2px) }
.btn:hover::after { opacity: 1 }
.btn:active { transform: translateY(0) }

.btn-primary {
  background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
  color: var(--dark); border-color: transparent;
}
.btn-primary:hover {
  box-shadow: var(--glow);
}

.btn-secondary {
  background: transparent;
  color: #fff;
  border-color: rgba(255,255,255,.38);
}
.btn-secondary:hover { border-color: rgba(255,255,255,.72); box-shadow: 0 0 18px rgba(255,255,255,.08) }

.btn-ghost {
  background: transparent;
  color: var(--primary);
  border-color: rgba(42,227,252,.45);
}
.btn-ghost:hover { border-color: var(--primary); box-shadow: var(--glow) }

/* ── Header ──────────────────────────────────────────────── */
.site-header {
  position: fixed; inset: 0 0 auto 0; width: 100%; z-index: 1000;
  background: rgba(7,21,27,.76);
  border-bottom: 1px solid rgba(255,255,255,.08);
  backdrop-filter: blur(22px) saturate(160%);
  -webkit-backdrop-filter: blur(22px) saturate(160%);
  transition: background .35s var(--ease), border-color .35s var(--ease), box-shadow .35s var(--ease);
}
.site-header.is-scrolled {
  background: rgba(7,21,27,.96);
  border-bottom-color: rgba(42,227,252,.22);
  box-shadow: 0 8px 32px rgba(0,0,0,.28);
}
.nav-shell {
  min-height: 76px; display: flex; align-items: center; gap: 24px; padding: 10px 0;
}
.brand { display: flex; align-items: center; flex: 0 0 auto }
.brand img { height: 48px; width: auto; display: block }

.site-nav { display: flex; align-items: center; gap: 4px; margin-left: auto }
.site-nav a {
  position: relative; padding: 10px 12px;
  font-family: var(--font-head);
  font-size: 13.5px; font-weight: 500;
  color: rgba(255,255,255,.72);
  transition: color .2s var(--ease);
}
.site-nav a::after {
  content: ""; position: absolute;
  left: 12px; right: 12px; bottom: 4px; height: 1px;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
  transform: scaleX(0); transform-origin: center;
  transition: transform .26s var(--ease-back);
}
.site-nav a:hover,
.site-nav a:focus-visible,
.site-nav a.is-active { color: var(--primary) }
.site-nav a:hover::after,
.site-nav a:focus-visible::after,
.site-nav a.is-active::after { transform: scaleX(1) }

.nav-toggle {
  display: none; border: 0; background: transparent; padding: 8px; width: 44px; height: 44px;
}
.nav-toggle span:not(.sr-only) {
  display: block; height: 2px; background: #fff; margin: 6px;
  transition: .28s var(--ease);
}
.header-cta {
  font-family: var(--font-head);
  font-size: 13px; font-weight: 600; min-height: 42px; padding: 10px 18px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: var(--dark); border-color: transparent;
  transition: box-shadow .25s var(--ease), transform .25s var(--ease-back);
}
.header-cta:hover { box-shadow: var(--glow); transform: translateY(-1px) }

/* ── Hero ────────────────────────────────────────────────── */
.hero {
  min-height: 100vh; display: flex; align-items: center;
  padding: 80px 0 80px;
  background: var(--dark);
  color: #fff; isolation: isolate;
  overflow: hidden;
}

/* animated blobs */
.hero-bg {
  position: absolute; inset: 0; z-index: -1;
  background: linear-gradient(135deg, #07151b 0%, #0c2434 50%, #07151b 100%);
}
.hero-bg::before {
  content: "";
  position: absolute;
  width: 680px; height: 680px;
  top: -200px; left: -140px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(9,187,254,.22), transparent 60%);
  animation: heroBlob1 12s ease-in-out infinite;
  filter: blur(2px);
}
.hero-bg::after {
  content: "";
  position: absolute;
  width: 560px; height: 560px;
  top: -80px; right: -80px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(42,227,252,.16), transparent 60%);
  animation: heroBlob2 15s ease-in-out infinite;
  filter: blur(2px);
}

/* subtle grid overlay */
.hero::before {
  content: ""; position: absolute; inset: 0; z-index: 0; pointer-events: none;
  background-image:
    linear-gradient(rgba(9,187,254,.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(9,187,254,.05) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: linear-gradient(to bottom, rgba(0,0,0,.4) 0%, transparent 80%);
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(0, 0.9fr);
  gap: 80px; align-items: center; position: relative; z-index: 2;
}

.hero-copy { animation: fadeUp .9s var(--ease) both }
.hero h1 {
  font-size: clamp(44px, 6.8vw, 82px);
  font-weight: 700; letter-spacing: -.022em; line-height: 1.06; max-width: 820px;
}

/* gradient shimmer on hero title */
.hero h1 span {
  background: linear-gradient(120deg, #fff 30%, var(--secondary) 50%, var(--primary) 70%, #fff 90%);
  background-size: 200% auto;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: shimmer 4s linear infinite;
}

.brand-slogan {
  font-family: var(--font-head);
  font-size: clamp(20px, 2.5vw, 30px);
  font-weight: 600; letter-spacing: .01em;
  color: var(--secondary); margin: 22px 0 0;
}
.hero-lead {
  font-size: clamp(16px, 1.6vw, 19px);
  color: rgba(255,255,255,.7); max-width: 600px; margin: 22px 0 0; line-height: 1.72;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin: 36px 0 0 }
.hero-bottom-label {
  grid-column: 1 / -1; text-align: center;
  font-family: var(--font-head); font-size: clamp(13px, 1.1vw, 16px);
  font-weight: 500; letter-spacing: .18em; text-transform: uppercase;
  color: rgba(255,255,255,.38); margin: 48px 0 0; padding-bottom: 8px;
}

/* hero visual */
.hero-visual {
  position: relative; min-height: 560px;
  animation: fadeUp 1s .25s var(--ease) both;
}
.glass-card {
  background: rgba(255,255,255,.07);
  border: 1px solid rgba(255,255,255,.15);
  backdrop-filter: blur(16px) saturate(140%);
}
.hero-card {
  position: absolute; inset: 40px 14px;
  padding: 28px; border-radius: 0;
  display: grid; grid-template-rows: 1fr auto; overflow: hidden;
  transition: border-color .4s var(--ease);
}
.hero-card:hover { border-color: rgba(42,227,252,.3) }

.hero-device {
  width: 220px; height: 318px;
  background: linear-gradient(180deg, #f7fbfc, #d4e2e7);
  justify-self: center; align-self: center; position: relative;
  border: 1px solid rgba(255,255,255,.6);
  transition: transform .4s var(--ease);
  animation: floatSlow 6s ease-in-out infinite;
}
.device-top { position: absolute; inset: 22px 36px auto; height: 11px; background: #9db4ba }
.device-logo {
  position: absolute; top: 66px; left: 50%; transform: translateX(-50%);
  width: 90px; height: 90px; border-radius: 50%; background: #fff;
  display: grid; place-items: center;
  box-shadow: 0 0 0 1px rgba(9,187,254,.3), 0 12px 28px rgba(42,227,252,.2);
  animation: pulse 3s ease-in-out infinite;
}
.device-logo img { width: 66px }
.device-vent {
  position: absolute; left: 38px; right: 38px; top: 182px; height: 46px;
  background: repeating-linear-gradient(90deg, #667b84 0 4px, transparent 4px 11px);
  opacity: .65;
}
.device-water {
  position: absolute; left: 50px; right: 50px; bottom: 22px; height: 52px;
  background: linear-gradient(180deg, rgba(42,227,252,.55), rgba(9,187,254,.92));
  animation: waterRise 2s 1.2s var(--ease) both;
}
.hero-card-copy { position: relative; z-index: 2 }
.hero-card-copy img { height: 40px; width: auto; margin-bottom: 13px }
.card-slogan { margin: 0 0 14px; color: var(--secondary); font-family: var(--font-head); font-weight: 600 }
.hero-card-copy h2 { font-size: 24px; margin: 0 0 8px; letter-spacing: -.015em; line-height: 1.08 }
.hero-card-copy p { color: rgba(255,255,255,.7); margin: 0 }

.metric-card {
  position: absolute; padding: 17px 20px; z-index: 3;
  transition: transform .3s var(--ease-back), border-color .3s var(--ease), box-shadow .3s var(--ease);
}
.metric-card:hover {
  transform: scale(1.04);
  border-color: rgba(42,227,252,.4);
  box-shadow: var(--glow);
}
.metric-card strong {
  display: block; font-family: var(--font-head);
  font-size: 27px; line-height: 1; color: var(--primary); font-weight: 700;
}
.metric-card span { display: block; color: rgba(255,255,255,.64); font-size: 12px; margin-top: 6px }
.metric-a { left: 0; top: 14%; animation: float 7s ease-in-out infinite }
.metric-b { right: 0; bottom: 12%; animation: float 8s 1.5s ease-in-out infinite }

/* ── Section shared ──────────────────────────────────────── */
.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 72px; align-items: start }
.align-center { align-items: center }
.section-head { max-width: 820px; margin-bottom: 48px }
.section-head.center { text-align: center; margin-inline: auto }
.section-head.center .eyebrow { justify-content: center }
.section h2, .cta-band h2 {
  font-size: clamp(32px, 4.6vw, 58px);
  font-weight: 700; letter-spacing: -.018em; line-height: 1.08;
}
.section-copy p, .section-head p {
  font-size: 18px; line-height: 1.7; color: var(--muted); margin: 20px 0 0;
}
.section-dark .section-copy p,
.section-dark-soft .section-copy p,
.section-dark .section-head p,
.section-dark-soft .section-head p { color: rgba(255,255,255,.7) }

/* image panel */
.image-panel {
  position: relative; margin: 0;
  background: var(--light); border: 1px solid var(--line);
  overflow: hidden;
  transition: border-color .3s var(--ease), box-shadow .3s var(--ease);
}
.image-panel:hover { border-color: rgba(9,187,254,.36); box-shadow: var(--glow) }
.image-panel img { width: 100%; aspect-ratio: 4/5; object-fit: cover; transition: transform .6s var(--ease) }
.image-panel:hover img { transform: scale(1.03) }
.image-panel figcaption {
  position: absolute; left: 0; right: 0; bottom: 0;
  padding: 16px 20px;
  background: rgba(7,21,27,.86); color: #fff;
  font-family: var(--font-head); font-weight: 600; font-size: 15px;
  border-top: 1px solid rgba(42,227,252,.3);
  backdrop-filter: blur(8px);
}

/* ── Challenge ───────────────────────────────────────────── */
.challenge-section .section-head { max-width: 780px }
.challenge-points { display: grid; grid-template-columns: repeat(3,1fr); gap: 20px }
.challenge-point {
  display: grid; grid-template-columns: auto 1fr; gap: 18px;
  padding: 30px;
  border: 1px solid rgba(255,255,255,.12);
  background: rgba(255,255,255,.04);
  transition: border-color .35s var(--ease), background .35s var(--ease), transform .35s var(--ease-back), box-shadow .35s var(--ease);
}
.challenge-point:hover {
  border-color: rgba(42,227,252,.32);
  background: rgba(255,255,255,.08);
  transform: translateY(-4px);
  box-shadow: 0 20px 48px rgba(0,0,0,.22);
}
.challenge-icon {
  width: 64px; height: 64px; display: grid; place-items: center;
  color: var(--primary); background: rgba(42,227,252,.07);
  border: 1px solid rgba(42,227,252,.28);
  font-family: var(--font-head); font-weight: 700; font-size: 14px; letter-spacing: .04em;
  transition: background .3s var(--ease), border-color .3s var(--ease);
}
.challenge-point:hover .challenge-icon { background: rgba(42,227,252,.14); border-color: var(--accent) }
.challenge-point > div > span {
  display: inline-block; margin-bottom: 10px;
  color: var(--secondary); font-size: 11px; font-weight: 700; letter-spacing: .14em;
  font-family: var(--font-head);
}
.challenge-point h3 { margin: 0 0 10px; font-size: 22px; letter-spacing: -.01em; color: #fff }
.challenge-point p { margin: 0; color: rgba(255,255,255,.68) }

/* ── Technology ──────────────────────────────────────────── */
.process-grid { display: grid; grid-template-columns: repeat(4,1fr); gap: 18px }
.process-step {
  background: #fff; border: 1px solid rgba(9,187,254,.55);
  padding: 28px; min-height: 220px; position: relative; overflow: hidden;
  transition: border-color .35s var(--ease), transform .35s var(--ease-back), box-shadow .35s var(--ease);
}
.process-step::before {
  content: ""; position: absolute;
  right: -60px; top: -60px; width: 160px; height: 160px; border-radius: 50%;
  background: radial-gradient(circle, rgba(42,227,252,.14), transparent 60%);
  opacity: 0; transition: opacity .4s var(--ease);
}
.process-step:hover { border-color: rgba(9,187,254,.42); transform: translateY(-5px); box-shadow: 0 24px 54px rgba(9,187,254,.1) }
.process-step:hover::before { opacity: 1 }
.process-step span {
  display: inline-grid; place-items: center; width: 42px; height: 42px;
  border: 1px solid rgba(42,227,252,.36); color: var(--primary);
  font-family: var(--font-head); font-weight: 700; font-size: 13px;
  transition: background .3s var(--ease), border-color .3s var(--ease);
}
.process-step:hover span { background: rgba(9,187,254,.08); border-color: var(--primary) }
.process-step h3 { font-size: 22px; margin: 22px 0 10px; letter-spacing: -.01em }
.process-step p { margin: 0; color: var(--muted) }

/* tech feature */
.tech-feature {
  margin-top: 22px;
  margin-left: calc(-50vw + 50%);
  margin-right: calc(-50vw + 50%);
  padding-left: calc(50vw - 50% + 44px);
  padding-right: calc(50vw - 50% + 44px);
  background: linear-gradient(135deg, #07151b 0%, #0e2f3b 100%);
  border-top: 1px solid rgba(42,227,252,.14);
  border-bottom: 1px solid rgba(42,227,252,.14);
  color: #fff; display: grid;
  grid-template-columns: .68fr 1.32fr; gap: 36px;
  align-items: center; padding-top: 44px; padding-bottom: 44px; overflow: hidden;
  transition: border-color .35s var(--ease);
}
.tech-feature:hover { border-color: rgba(42,227,252,.28) }
.tech-feature h3 {
  font-size: clamp(28px, 3.6vw, 46px);
  font-weight: 700; line-height: 1.06; margin: 0; letter-spacing: -.018em;
}
.tech-feature p { color: rgba(255,255,255,.7); font-size: 17px }
.tech-feature-copy .eyebrow { color: var(--primary)!important }
.tech-feature-copy .btn { margin-top: 24px }
.tech-feature-img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  display: block;
  border-radius: 4px;
  align-self: center;
  margin: auto 0;
}

/* ── Protocol module ──────────────────────────────────────── */
.protocol-module {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  margin: 40px 0;
  padding: 22px 28px;
  background: #f4fbff;
  border: 1px solid rgba(9,187,254,.35);
  border-left: 3px solid var(--primary);
  border-radius: 6px;
}
.protocol-meta {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  flex: 1;
  min-width: 260px;
}
.protocol-icon {
  width: 32px;
  height: 32px;
  flex-shrink: 0;
  color: var(--primary);
  margin-top: 2px;
}
.protocol-label {
  font-family: var(--font-head);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--primary);
  margin: 0 0 4px;
}
.protocol-ref {
  font-size: 13px;
  color: var(--muted);
  margin: 0;
  line-height: 1.5;
}
.protocol-docs {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 10px;
}
.protocol-docs-label {
  font-family: var(--font-head);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: #5a7a88;
}
.protocol-links {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  justify-content: flex-end;
}
.protocol-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 14px;
  font-family: var(--font-head);
  font-size: 13px;
  font-weight: 600;
  color: var(--primary);
  background: #fff;
  border: 1px solid rgba(9,187,254,.45);
  border-radius: 4px;
  text-decoration: none;
  transition: background .2s, border-color .2s, color .2s;
}
.protocol-link svg { width: 14px; height: 14px; flex-shrink: 0 }
.protocol-link:hover {
  background: var(--primary);
  border-color: var(--primary);
  color: #fff;
}

/* mock devices */
.tech-device-stage {
  position: relative; min-height: 420px;
  display: flex; align-items: flex-end; justify-content: center;
  padding: 22px 10px 10px; isolation: isolate;
}
.tech-device-stage::before {
  content: ""; position: absolute; inset: 16px 0 6px;
  background:
    radial-gradient(circle at 72% 20%, rgba(42,227,252,.18), transparent 34%),
    radial-gradient(circle at 20% 78%, rgba(9,187,254,.22), transparent 34%),
    rgba(255,255,255,.04);
  border: 1px solid rgba(255,255,255,.1);
}
.samai-laptop { position: relative; width: min(100%, 430px); z-index: 2 }
.laptop-screen {
  background: #f5fafb; border: 10px solid #0b1d26;
  aspect-ratio: 4/3; padding: 18px; border-bottom: 0;
}
.laptop-base {
  width: 108%; height: 17px; margin: 0 auto;
  background: linear-gradient(180deg, #b8c9d0, #8da0a8);
  clip-path: polygon(4% 0, 96% 0, 100% 100%, 0 100%);
}
.screen-topbar {
  display: flex; justify-content: space-between; gap: 12px;
  align-items: center; padding-bottom: 12px;
  border-bottom: 1px solid rgba(9,187,254,.12); margin-bottom: 12px;
}
.screen-brand {
  display: flex; align-items: center; gap: 9px;
  color: var(--dark); font-family: var(--font-head); font-size: 13px; font-weight: 600;
}
.screen-brand img, .phone-header img { width: 28px; height: 28px; object-fit: contain }
.screen-status {
  padding: 5px 9px; background: rgba(42,227,252,.16);
  color: #116d80; font-size: 11px; font-family: var(--font-head); font-weight: 600;
}
.dashboard-grid { display: grid; grid-template-columns: 1.25fr 1fr 1fr; gap: 10px }
.dashboard-card, .phone-panel, .phone-stats > div {
  background: #fff; border: 1px solid rgba(9,187,254,.12);
  padding: 13px; color: var(--dark);
}
.dashboard-card small, .phone-panel small, .phone-stats small {
  display: block; font-size: 10px; line-height: 1.2;
  text-transform: uppercase; letter-spacing: .1em; color: var(--muted);
}
.dashboard-card strong, .phone-panel strong, .phone-stats strong {
  display: block; margin-top: 7px;
  font-family: var(--font-head); font-size: 24px; line-height: 1; letter-spacing: -.01em; color: var(--dark);
}
.dashboard-card.large { grid-column: span 2; min-height: 112px }
.dashboard-card.wide  { grid-column: 1/-1; min-height: 76px }
.mini-bars { display: flex; align-items: flex-end; gap: 7px; margin-top: 12px; height: 42px }
.mini-bars span {
  flex: 1; background: linear-gradient(180deg, var(--primary), var(--accent));
  transition: height .4s var(--ease);
}
.mini-bars span:nth-child(1) { height: 42% }
.mini-bars span:nth-child(2) { height: 70% }
.mini-bars span:nth-child(3) { height: 58% }
.mini-bars span:nth-child(4) { height: 88% }
.wave-line {
  margin-top: 12px; height: 28px;
  background: linear-gradient(90deg,
    transparent 0 4%, rgba(42,227,252,.22) 4% 7%, transparent 7% 12%,
    rgba(9,187,254,.28) 12% 17%, transparent 17% 24%,
    rgba(42,227,252,.2) 24% 32%, transparent 32% 42%,
    rgba(9,187,254,.32) 42% 54%, transparent 54% 68%,
    rgba(42,227,252,.24) 68% 82%, transparent 82% 100%
  );
}
.samai-phone {
  position: absolute; right: 8px; bottom: 28px; width: 162px; z-index: 3;
  background: #081822; border: 7px solid #081822;
}
.phone-speaker { width: 54px; height: 5px; background: var(--primary); margin: 9px auto 7px }
.phone-screen { background: #f4f9fb; min-height: 306px; padding: 14px 12px 12px }
.phone-header {
  display: flex; align-items: center; gap: 7px; margin-bottom: 12px;
  color: var(--dark); font-family: var(--font-head); font-size: 12px; font-weight: 600;
}
.phone-panel.active { background: linear-gradient(135deg, rgba(9,187,254,.12), rgba(9,187,254,.08)) }
.phone-panel em { display: block; margin-top: 6px; font-size: 11px; color: var(--muted); font-style: normal }
.phone-stats { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; margin: 9px 0 }
.phone-stats strong { font-size: 17px }
.phone-progress { margin-top: 10px; height: 7px; background: #d8e6ea }
.phone-progress span { display: block; width: 72%; height: 100%; background: linear-gradient(90deg, var(--accent), var(--primary)) }

/* ── Solutions ───────────────────────────────────────────── */
.solutions-section { padding-top: 0 }
.solution-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 22px }
.solution-card {
  background: #fff; border: 1px solid rgba(9,187,254,.55);
  overflow: hidden; display: flex; flex-direction: column;
  transition: border-color .35s var(--ease), transform .35s var(--ease-back), box-shadow .35s var(--ease);
}
.solution-body { flex: 1 }
.solution-card:hover {
  border-color: rgba(9,187,254,.44); transform: translateY(-6px);
  box-shadow: 0 28px 64px rgba(9,187,254,.1);
}
.solution-card.featured {
  background: linear-gradient(180deg, #fff, #eef9fd);
  border-color: rgba(42,227,252,.28);
}
.solution-img {
  width: 100%; aspect-ratio: 4/5; object-fit: cover; display: block;
  transition: transform .5s var(--ease);
}
.solution-card:hover .solution-img { transform: scale(1.03) }
.solution-body { padding: 28px }
.tag {
  display: inline-block; padding: 6px 12px;
  background: rgba(9,187,254,.08); color: var(--primary);
  font-family: var(--font-head); font-size: 12px; font-weight: 600;
  border: 1px solid rgba(9,187,254,.2);
  transition: background .2s, border-color .2s;
}
.solution-card:hover .tag { background: rgba(9,187,254,.14); border-color: rgba(9,187,254,.36) }
.solution-body h3 {
  font-size: 26px; line-height: 1.06; margin: 16px 0 10px; letter-spacing: -.01em;
}
.solution-body p { color: var(--muted); margin: 0 0 16px }
.solution-body ul { padding: 0; margin: 0; list-style: none; display: grid; gap: 8px }
.solution-body li { position: relative; padding-left: 20px; color: #2f4850 }
.solution-body li::before {
  content: ""; position: absolute; left: 0; top: .72em; width: 8px; height: 8px;
  background: linear-gradient(135deg, var(--accent), var(--primary));
}

/* ── Impact ──────────────────────────────────────────────── */
.impact-section .two-col { align-items: center }
.impact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px }
.impact-card {
  border: 1px solid rgba(255,255,255,.12); background: rgba(255,255,255,.05);
  padding: 28px; min-height: 160px;
  transition: border-color .35s var(--ease), background .35s var(--ease), transform .35s var(--ease-back);
}
.impact-card:hover {
  border-color: rgba(42,227,252,.36);
  background: rgba(255,255,255,.1);
  transform: translateY(-3px);
}
.impact-card > span {
  display: block; color: var(--secondary);
  font-family: var(--font-head); font-weight: 600; font-size: 15px; margin-bottom: 14px;
}
.impact-card p { margin: 0; color: rgba(255,255,255,.72) }

/* ── Pillars ─────────────────────────────────────────────── */
.pillars-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 20px }
.pillar {
  padding: 36px 32px; background: #fff;
  border: 1px solid rgba(9,187,254,.55); position: relative; overflow: hidden;
  transition: border-color .35s var(--ease), transform .35s var(--ease-back), box-shadow .35s var(--ease);
}
.pillar::before {
  content: ""; position: absolute; top: 0; left: 0; right: 0; height: 2px;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
  transform: scaleX(0); transform-origin: left;
  transition: transform .45s var(--ease);
}
.pillar:hover { border-color: rgba(9,187,254,.36); transform: translateY(-5px); box-shadow: 0 24px 54px rgba(9,187,254,.09) }
.pillar:hover::before { transform: scaleX(1) }
.pillar > span {
  color: var(--primary); font-family: var(--font-head);
  font-weight: 600; text-transform: uppercase;
  font-size: 11px; letter-spacing: .13em;
}
.pillar h3 { font-size: 25px; line-height: 1.08; letter-spacing: -.01em; margin: 18px 0 12px }
.pillar p { margin: 0; color: var(--muted) }

/* ── Applications ────────────────────────────────────────── */
.applications-inner {
  margin-top: 64px;
  margin-left: calc(-50vw + 50%);
  margin-right: calc(-50vw + 50%);
  padding: 56px calc(50vw - 50% + 44px);
  background: linear-gradient(135deg, #eaf9fe 0%, #f0fdf8 100%);
  border-top: 1px solid rgba(9,187,254,.18);
  border-bottom: 1px solid rgba(9,187,254,.18);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
}
.applications-copy .eyebrow { }
.applications-copy h2 {
  font-size: clamp(24px, 3vw, 38px);
  color: var(--dark); margin: 0 0 32px;
}
.applications-list {
  list-style: none; padding: 0; margin: 0;
  display: grid; grid-template-columns: 1fr 1fr; gap: 6px;
}
.applications-list li {
  display: flex; align-items: center; gap: 11px;
  padding: 13px 16px;
  background: #fff;
  border: 1px solid rgba(9,187,254,.28);
  border-radius: 4px;
  font-family: var(--font-head); font-size: 14px; font-weight: 500;
  color: var(--dark);
  transition: border-color .2s, background .2s, color .2s;
}
.applications-list li:hover {
  border-color: var(--primary);
  background: rgba(9,187,254,.05);
  color: var(--primary);
}
.applications-list li svg {
  width: 16px; height: 16px; flex-shrink: 0;
  color: var(--primary);
}
.reverse-mobile { }

/* ── Roadmap ─────────────────────────────────────────────── */
.roadmap-section { overflow: hidden }
.timeline-line { display: none }
.timeline {
  position: relative;
  display: grid; grid-template-columns: repeat(4, minmax(0,1fr)); gap: 22px;
  padding-top: 68px; isolation: isolate;
}
.timeline::before {
  content: ""; position: absolute;
  left: 50%; top: 34px; width: 100vw; height: 2px;
  transform: translateX(-50%);
  background: linear-gradient(90deg, transparent 0%, rgba(9,187,254,.22) 10%, var(--primary) 50%, rgba(9,187,254,.22) 90%, transparent 100%);
  z-index: 0;
  animation: shimmer 4s linear infinite;
  background-size: 200% auto;
}
.timeline-item {
  position: relative; z-index: 1;
  border: 1px solid rgba(255,255,255,.12); background: rgba(255,255,255,.04);
  display: flex; flex-direction: column; align-items: center;
  justify-content: flex-start; text-align: center; padding: 46px 22px 28px;
  transition: border-color .35s var(--ease), background .35s var(--ease), transform .35s var(--ease-back);
}
.timeline-item:hover { border-color: rgba(42,227,252,.3); background: rgba(255,255,255,.09); transform: translateY(-4px) }
.timeline-dot {
  position: absolute; top: -44px; left: 50%; transform: translateX(-50%);
  width: 20px; height: 20px; z-index: 2;
  background: var(--primary);
  border: 4px solid var(--dark);
  animation: pulse 2.5s ease-in-out infinite;
}
.timeline-dot::after {
  content: ""; position: absolute;
  left: 50%; top: 100%; width: 2px; height: 22px;
  transform: translateX(-50%);
  background: var(--primary); opacity: .6;
}
.timeline-item strong {
  display: block; width: 100%; margin: 0 0 12px;
  color: var(--primary); font-family: var(--font-head); font-size: 19px;
}
.timeline-item p { margin: 0; color: rgba(255,255,255,.7); max-width: 220px }

/* ── Video ───────────────────────────────────────────────── */
.video-grid { display: grid; grid-template-columns: .84fr 1.16fr; gap: 56px; align-items: center }
.video-frame {
  position: relative; aspect-ratio: 16/9; overflow: hidden;
  background: var(--dark); border: 1px solid rgba(9,187,254,.18);
  transition: border-color .3s var(--ease), box-shadow .3s var(--ease);
}
.video-frame:hover { border-color: rgba(9,187,254,.4); box-shadow: var(--glow) }
.video-frame iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0 }

/* ── FAQ ─────────────────────────────────────────────────── */
.faq-list {
  display: grid; gap: 0; width: 100%;
  border-top: 1px solid rgba(9,187,254,.55);
}
.faq-list details {
  background: #fff;
  border: 1px solid rgba(9,187,254,.55); border-top: 0;
  transition: border-color .2s;
}
.faq-list details:hover { border-color: rgba(9,187,254,.55) }
.faq-list summary {
  cursor: pointer; list-style: none;
  display: flex; align-items: center; justify-content: space-between; gap: 18px;
  padding: 22px 24px;
  font-family: var(--font-head); font-size: 17px; font-weight: 600; color: var(--dark);
  background: rgba(9,187,254,.08); transition: color .2s, background .2s;
}
.faq-list summary::-webkit-details-marker { display: none }
.faq-list summary:hover { background: rgba(9,187,254,.14) }
.faq-list summary b {
  position: relative; width: 26px; height: 26px; flex: 0 0 26px;
  border: 1px solid rgba(9,187,254,.4);
  transition: border-color .2s, background .2s;
}
.faq-list summary:hover b { border-color: var(--primary) }
.faq-list summary b::before,
.faq-list summary b::after {
  content: ""; position: absolute;
  background: var(--dark); left: 7px; right: 7px; top: 50%; height: 2px;
  transform: translateY(-50%); transition: background .2s;
}
.faq-list summary b::after {
  top: 7px; bottom: 7px; left: 50%; right: auto; width: 2px; height: auto;
  transform: translateX(-50%); transition: transform .22s var(--ease), opacity .22s;
}
.faq-list details[open] summary { color: var(--primary) }
.faq-list details[open] summary b { border-color: var(--primary); background: rgba(9,187,254,.1) }
.faq-list details[open] summary b::before { background: var(--primary) }
.faq-list details[open] summary b::after { opacity: 0; transform: translateX(-50%) rotate(90deg) }
.faq-list p {
  margin: 0; padding: 0 24px 24px;
  color: var(--muted); font-size: 16px; line-height: 1.72;
  border-top: 1px solid rgba(9,187,254,.12); padding-top: 18px;
}

/* ── CTA band ────────────────────────────────────────────── */
.cta-band {
  padding: 72px 0;
  background: var(--dark)!important; color: #fff;
  position: relative; overflow: hidden;
}
.cta-band::before {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background: radial-gradient(ellipse at 60% 50%, rgba(9,187,254,.14), transparent 55%);
}
.cta-content {
  display: grid; grid-template-columns: auto 1fr auto; gap: 28px; align-items: center;
  border-top: 1px solid rgba(255,255,255,.12);
  border-bottom: 1px solid rgba(255,255,255,.12);
  padding: 36px 0; position: relative;
}
.cta-content img { width: 76px }
.cta-content h2 { font-size: clamp(26px, 3.6vw, 46px); font-weight: 700; letter-spacing: -.018em }
.cta-content p { margin: 10px 0 0; color: rgba(255,255,255,.68); font-size: 17px }
.cta-band .btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: var(--dark); border-color: transparent;
}
.cta-band .btn-primary:hover { box-shadow: var(--glow-lg) }

/* ── Contact ─────────────────────────────────────────────── */
.contact-section { background: #fff }
.contact-module {
  background: #fff;
  padding: 48px; display: grid;
  grid-template-columns: .86fr 1.14fr; gap: 44px;
}
.contact-form input,
.contact-form select,
.contact-form textarea {
  border-color: rgba(9,187,254,.55) !important;
}
.contact-intro h2 {
  font-size: clamp(28px, 3.8vw, 50px);
  font-weight: 700; letter-spacing: -.018em; line-height: 1.08; margin: 0;
}
.contact-intro p { color: var(--muted); font-size: 17px; margin-top: 14px }
.contact-form { display: grid; gap: 16px }
.contact-form-fields { display: grid; gap: 16px }
.contact-form-fields[hidden] { display: none }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px }
.contact-form label {
  display: grid; gap: 8px;
  font-family: var(--font-head); font-weight: 600; font-size: 14px; color: var(--dark);
}
.contact-form input,
.contact-form select,
.contact-form textarea {
  width: 100%; border: 1px solid rgba(9,187,254,.2); padding: 13px 15px;
  background: #fff; color: var(--ink); outline: none;
  transition: border-color .2s var(--ease), box-shadow .2s var(--ease);
}
.contact-form input:focus,
.contact-form select:focus,
.contact-form textarea:focus { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(9,187,254,.1) }
.form-actions { display: flex; gap: 12px; flex-wrap: wrap }
.form-actions .btn-secondary {
  color: var(--dark); border-color: rgba(9,187,254,.28); background: transparent;
}
.form-actions .btn-secondary:hover { border-color: var(--primary); color: var(--primary) }
.privacy-note { margin: 0; color: #7a8b92; font-size: 13px }

/* Validación inline por campo */
.field-error {
  display: none;
  color: #d64545; font-family: var(--font-body); font-weight: 500; font-size: 12.5px;
  align-items: center; gap: 5px;
}
.field-error:not(:empty) {
  display: flex;
  animation: fieldErrorIn .2s var(--ease) both;
}
.field-error::before {
  content: "!";
  display: inline-flex; align-items: center; justify-content: center;
  width: 14px; height: 14px; border-radius: 50%;
  background: #d64545; color: #fff; font-size: 10px; font-weight: 700; flex: none;
}
.contact-form label.has-error input,
.contact-form label.has-error select,
.contact-form label.has-error textarea {
  border-color: #d64545;
}
.contact-form label.has-error input:focus,
.contact-form label.has-error select:focus,
.contact-form label.has-error textarea:focus {
  box-shadow: 0 0 0 3px rgba(214,69,69,.12);
}
@keyframes fieldErrorIn {
  from { opacity: 0; transform: translateY(-4px) }
  to   { opacity: 1; transform: translateY(0) }
}

/* Aviso general (envío / errores de red) */
.form-status[hidden] { display: none }
.form-status {
  display: flex; align-items: center; gap: 8px;
  margin: 0; padding: 11px 14px;
  border: 1px solid rgba(9,187,254,.28); background: rgba(9,187,254,.06);
  color: var(--dark); font-family: var(--font-head); font-weight: 600; font-size: 13.5px;
  animation: fieldErrorIn .25s var(--ease) both;
}
.form-status.is-error {
  border-color: rgba(214,69,69,.3); background: rgba(214,69,69,.06); color: #b23a3a;
}

/* Honeypot: oculto para personas, visible para bots */
.hp-field {
  position: absolute !important;
  width: 1px; height: 1px; overflow: hidden;
  clip: rect(0 0 0 0); white-space: nowrap; left: -9999px;
}

/* ── Confirmación de envío del formulario ────────────────── */
.form-success[hidden] { display: none }
.form-success {
  display: flex; flex-direction: column; align-items: center; text-align: center;
  gap: 6px; padding: 48px 24px;
  animation: formSuccessIn .5s var(--ease-back) both;
}
.form-success-check {
  width: 76px; height: 76px; margin-bottom: 10px;
}
.form-success-check-circle {
  stroke: var(--primary); stroke-width: 2;
  stroke-dasharray: 151; stroke-dashoffset: 151;
  animation: formSuccessCircle .5s var(--ease) forwards;
}
.form-success-check-mark {
  stroke: var(--secondary); stroke-width: 3; stroke-linecap: round; stroke-linejoin: round;
  stroke-dasharray: 36; stroke-dashoffset: 36;
  animation: formSuccessMark .35s var(--ease) .45s forwards;
}
.form-success-title {
  font-family: var(--font-head); font-weight: 700; font-size: 22px; color: var(--dark);
  margin: 4px 0 0;
}
.form-success-text { color: var(--muted); font-size: 15px; margin: 0 0 10px; max-width: 34ch }
.form-success .btn-secondary {
  color: var(--dark); border-color: rgba(9,187,254,.28); background: transparent; margin-top: 4px;
}
.form-success .btn-secondary:hover { border-color: var(--primary); color: var(--primary) }

@keyframes formSuccessIn {
  from { opacity: 0; transform: translateY(10px) scale(.98) }
  to   { opacity: 1; transform: translateY(0) scale(1) }
}
@keyframes formSuccessCircle {
  to { stroke-dashoffset: 0 }
}
@keyframes formSuccessMark {
  to { stroke-dashoffset: 0 }
}

/* ── Footer ──────────────────────────────────────────────── */
.site-footer {
  background: var(--dark)!important; color: #fff;
  padding: 64px 0 28px;
}
.footer-grid { display: grid; grid-template-columns: 1.2fr .6fr .7fr 1.1fr; gap: 40px }
.footer-address { color: rgba(255,255,255,.62); font-size: 14px; line-height: 1.7; margin: 8px 0 16px; max-width: none }
.footer-map { position: relative; width: 100%; aspect-ratio: 4/3; border-radius: 4px; overflow: hidden; border: 1px solid rgba(255,255,255,.12) }
.footer-map iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: none }
.footer-logo { height: 100px; width: auto; margin-bottom: 18px }
.footer-social { display: flex; flex-direction: column; gap: 8px; margin-top: 18px }
.footer-social-link {
  display: flex; align-items: center; gap: 9px;
  color: rgba(255,255,255,.62); font-size: 14px; text-decoration: none;
  line-height: 1;
  transition: color .2s;
}
.footer-social-link svg { vertical-align: middle; flex-shrink: 0 }
.footer-social-link svg { width: 16px; height: 16px; flex-shrink: 0 }
.footer-social-link:hover { color: var(--primary) }
.site-footer p { color: rgba(255,255,255,.62); max-width: 360px; margin: 8px 0 0; line-height: 1.7 }
.footer-grid > div:first-child h4 { font-size: 14px; font-weight: 500; line-height: 1.6; color: #ffffff; margin: 0 }
.site-footer h3 {
  font-family: var(--font-head); font-size: 11px; font-weight: 500;
  text-transform: uppercase; letter-spacing: .14em;
  color: var(--primary); margin: 0 0 14px;
}
.site-footer a { display: block; color: rgba(255,255,255,.66); margin: 8px 0; transition: color .2s, padding-left .2s }
.site-footer a:hover { color: var(--secondary); padding-left: 4px }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.1);
  margin-top: 42px; padding-top: 22px;
  color: rgba(255,255,255,.48); font-size: 14px;
}

/* ── Back to top ─────────────────────────────────────────── */
.back-to-top {
  position: fixed; right: 24px; bottom: 24px; z-index: 950;
  display: inline-grid; place-items: center;
  width: 52px; height: 52px; border-radius: 50%;
  background: var(--dark); color: var(--primary);
  border: 1px solid rgba(42,227,252,.36);
  backdrop-filter: blur(12px);
  transition: transform .25s var(--ease-back), border-color .25s var(--ease), background .25s var(--ease), color .25s var(--ease), box-shadow .25s var(--ease);
}
.back-to-top:hover {
  transform: translateY(-4px);
  border-color: var(--primary);
  background: var(--primary); color: var(--dark);
  box-shadow: var(--glow);
}
.back-to-top svg { width: 20px; height: 20px }

/* ── Reveal animation ────────────────────────────────────── */
.reveal {
  opacity: 0; transform: translateY(26px);
  transition: opacity .75s var(--ease), transform .75s var(--ease);
}
.reveal.is-visible { opacity: 1; transform: none }

/* ── Responsive 1050px ───────────────────────────────────── */
@media (max-width: 1050px) {
  .header-cta { display: none }
  .hero-grid,
  .two-col,
  .tech-feature,
  .video-grid,
  .contact-module { grid-template-columns: 1fr }
  .hero-visual { min-height: 500px }
  .process-grid,
  .solution-grid,
  .pillars-grid,
  .challenge-points { grid-template-columns: 1fr 1fr }
  .tech-feature { padding: 34px }
  .applications-inner { grid-template-columns: 1fr; gap: 36px }
  .applications-inner { padding: 44px calc(50vw - 50% + 24px) }
  .tech-device-stage { min-height: 400px }
  .timeline { grid-template-columns: 1fr 1fr; padding-top: 0 }
  .timeline::before { display: none }
  .timeline-item { padding-top: 54px }
  .timeline-dot { top: 22px; animation: pulse 2.5s ease-in-out infinite }
  .timeline-dot::after { display: none }
}

/* ── Responsive 760px ────────────────────────────────────── */
@media (max-width: 760px) {
  html { scroll-padding-top: 74px }
  .container { width: min(100% - 30px, var(--max)) }
  .section { padding: 80px 0 }

  .brand img { height: 36px }
  .nav-toggle { display: block; margin-left: auto }
  .site-nav {
    display: none; flex-basis: 100%; order: 3;
    flex-direction: column; align-items: stretch; gap: 2px;
    margin: 8px 0 4px; padding-top: 8px;
    border-top: 1px solid rgba(255,255,255,.1);
  }
  .site-nav.is-open { display: flex }
  .site-nav a { padding: 12px 0 }
  .site-nav a::after { display: none }
  .nav-toggle.is-open span:nth-child(1) { transform: translateY(8px) rotate(45deg) }
  .nav-toggle.is-open span:nth-child(2) { opacity: 0 }
  .nav-toggle.is-open span:nth-child(3) { transform: translateY(-8px) rotate(-45deg) }
  .nav-shell { min-height: 68px; flex-wrap: wrap }

  .hero { padding: 128px 0 72px; min-height: auto }
  .hero-bg::before, .hero-bg::after { display: none }
  .hero-grid { gap: 36px }
  .hero h1 { font-size: 40px }
  .hero-visual { min-height: 420px }
  .hero-card { inset: 24px 0; padding: 22px }
  .hero-device { width: 162px; height: 238px; animation: none }
  .device-logo { top: 52px; width: 66px; height: 66px }
  .device-logo img { width: 50px }
  .device-vent { top: 140px; left: 30px; right: 30px }
  .metric-a { top: 2%; left: 0 }
  .metric-b { right: 0; bottom: 2% }
  .metric-a, .metric-b { animation: none }

  .process-grid,
  .solution-grid,
  .pillars-grid,
  .timeline,
  .impact-grid,
  .footer-grid,
  .challenge-points,
  .form-row,
  .gallery-mosaic,
  .applications-inner,
  .applications-list { grid-template-columns: 1fr }
  .applications-inner { padding: 40px calc(50vw - 50% + 16px) }

  .timeline { padding-top: 0 }
  .timeline-item { align-items: flex-start; text-align: left; padding: 28px 22px 26px 64px; min-height: auto }
  .timeline-dot { top: 30px; left: 26px; transform: none }
  .timeline-item p { max-width: none }

  .tech-device-stage { min-height: 420px; justify-content: flex-start; padding: 16px 4px 4px }
  .samai-laptop { width: 100%; max-width: 330px }
  .laptop-screen { padding: 12px; border-width: 8px }
  .dashboard-grid { grid-template-columns: 1fr 1fr }
  .dashboard-card.large, .dashboard-card.wide { grid-column: 1/-1 }
  .samai-phone { width: 132px; right: -2px; bottom: 20px }
  .phone-screen { min-height: 258px; padding: 11px }

  .cta-content { grid-template-columns: 1fr }
  .cta-content img { width: 58px }
  .btn { width: 100% }
  .hero-actions .btn { width: auto }
  .contact-module { padding: 26px }
  .form-actions .btn { width: 100% }
  .back-to-top { right: 14px; bottom: 14px; width: 46px; height: 46px }
  .gallery-mosaic img { aspect-ratio: 16/10 }
}

/* ── Eyebrow hero: igualado visualmente al resto ─────────── */
.hero .eyebrow {
  font-family: 'Poppins', Arial, Helvetica, sans-serif;
  font-size: 13px;
  font-weight: 500;
  letter-spacing: .13em;
  text-transform: uppercase;
}

/* ── Hero image (reemplaza el panel con dispositivos) ────── */
.hero-image {
  margin: 0;
  border: 1px solid rgba(255,255,255,.15);
  overflow: hidden;
  align-self: center;
}
.hero-image img {
  width: 100%;
  aspect-ratio: 4 / 5;
  object-fit: cover;
  display: block;
  transition: transform .6s var(--ease);
}
.hero-image:hover img { transform: scale(1.03) }

/* ── Challenge cards sin ícono numérico ─────────────────── */
.challenge-point {
  grid-template-columns: 1fr;   /* colapsa la columna del ícono */
}
.challenge-point > div { }      /* el único hijo ocupa todo el ancho */

/* ── Process steps sin número ───────────────────────────── */
.process-step h3 { margin-top: 16px }
.process-img {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  display: block;
  border-radius: 4px;
}

/* ── CTA band simplificada (sin botón ni logo) ───────────── */
.cta-content-simple {
  text-align: center;
  padding: 48px 0;
  position: relative;
}
.cta-content-simple h2 {
  font-size: clamp(28px, 4vw, 52px);
  font-weight: 700; letter-spacing: -.018em; line-height: 1.1; margin: 0;
}
.cta-content-simple p {
  margin: 14px 0 0; color: var(--secondary); font-size: 26px;
  font-family: var(--font-body); font-weight: 500;
}
/* ── Carousel ────────────────────────────────────────────── */
.carousel-clip { overflow-x: clip; overflow-y: visible; }
.carousel {
  position: relative; width: 100%;
  margin: 40px auto 0; overflow: visible; max-width: 1120px;
}
.carousel-track {
  display: flex; gap: 16px;
  transition: transform .45s cubic-bezier(.4,0,.2,1);
}
.carousel-slide {
  flex: 0 0 min(64%, 760px); position: relative; z-index: 0;
  aspect-ratio: 16/9; border-radius: 22px; overflow: hidden;
  opacity: .45; transform: scale(1); transition: opacity .4s, transform .4s, z-index 0s .4s;
  box-shadow: 0 16px 36px rgba(0,0,0,.16);
}
.carousel-slide.is-active { opacity: 1; transform: scale(1.13); z-index: 1; transition: opacity .4s, transform .4s; box-shadow: 0 28px 60px rgba(0,0,0,.36); }
.carousel-slide img {
  position: absolute; inset: 0; width: 100%; height: 100%;
  object-fit: cover; display: block;
}
.carousel-slide iframe {
  position: absolute; inset: 0; width: 100%; height: 100%;
  border: none;
}
.carousel-dots {
  display: flex; justify-content: center; gap: 14px;
  margin-top: 40px; padding: 4px 0 8px;
}
.carousel-dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: rgba(255,255,255,.3); border: none; cursor: pointer;
  padding: 0; transition: background .2s, transform .2s;
}
.carousel-dot.is-active { background: var(--primary); transform: scale(1.25) }

/* ── Sección unificada Pilares + Aplicaciones ────────────── */
.applications-inner {
  margin-top: 64px;
}
.equipment-showcase {
  margin-top: 38px;
  padding: 26px 24px 14px;
  border-radius: 24px;
  background: linear-gradient(135deg, rgba(9,187,254,.08), rgba(117,248,210,.08));
  border: 1px solid rgba(9,187,254,.16);
}
.equipment-showcase .section-head-tight {
  margin-bottom: 10px;
}
.equipment-showcase .section-head-tight h3 {
  font-size: clamp(22px, 2.2vw, 28px);
  margin-top: -8px;
}
.equipment-showcase .carousel {
  margin-top: 18px;
}
.equipment-showcase .carousel-slide {
  flex-basis: min(72%, 620px);
  aspect-ratio: 4 / 3;
}
.equipment-showcase .carousel-slide.is-active {
  transform: scale(1.04);
}
@media (max-width: 760px) {
  .applications-inner { margin-top: 44px }
  .equipment-showcase { padding: 18px 16px 12px }
  .equipment-showcase .carousel-slide { flex-basis: 84% }
}

/* ── Footer legal links ──────────────────────────────────── */
.footer-bottom {
  display: flex; align-items: center; justify-content: space-between;
  flex-wrap: wrap; gap: 12px;
}
.footer-legal { display: flex; gap: 24px }
.footer-legal a {
  display: inline; margin: 0; color: rgba(255,255,255,.48);
  font-size: 14px; transition: color .2s;
}
.footer-legal a:hover { color: var(--primary); padding-left: 0 }

@media (max-width: 600px) {
  .footer-bottom { flex-direction: column; align-items: flex-start }
}

/* ── Video modal ─────────────────────────────────────────── */
.video-modal {
  position: fixed; inset: 0; z-index: 2000;
  display: flex; align-items: center; justify-content: center;
}
.video-modal[hidden] { display: none }

.video-modal-backdrop {
  position: absolute; inset: 0;
  background: rgba(7,21,27,.88);
  backdrop-filter: blur(6px);
  cursor: pointer;
  animation: fadeModalIn .25s var(--ease) both;
}

.video-modal-box {
  position: relative; z-index: 1;
  width: min(92vw, 960px);
  animation: scaleModalIn .3s var(--ease-back) both;
}

.video-modal-close {
  position: absolute; top: -44px; right: 0;
  width: 38px; height: 38px;
  display: grid; place-items: center;
  background: rgba(255,255,255,.1);
  border: 1px solid rgba(255,255,255,.22);
  color: #fff; cursor: pointer;
  transition: background .2s, border-color .2s;
}
.video-modal-close:hover { background: rgba(9,187,254,.2); border-color: var(--primary) }
.video-modal-close svg { width: 18px; height: 18px }

.video-modal-frame {
  position: relative; aspect-ratio: 16/9;
  background: #000;
  border: 1px solid rgba(9,187,254,.22);
}
.video-modal-frame iframe {
  position: absolute; inset: 0;
  width: 100%; height: 100%; border: none;
}

@keyframes fadeModalIn {
  from { opacity: 0 }
  to   { opacity: 1 }
}
@keyframes scaleModalIn {
  from { opacity: 0; transform: scale(.92) }
  to   { opacity: 1; transform: scale(1) }
}

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