/* ═══ VERTEX AI ENGINEERING · diseño industrial-futurista ═══ */

:root {
  --bg: #0b1626;
  --bg-raise: #142338;
  --line: rgba(64, 224, 208, 0.2);
  --line-strong: rgba(64, 224, 208, 0.35);
  --text: #e8f1f8;
  --text-dim: rgba(226, 238, 247, 0.66);
  --cyan: #40e0d0;
  --volt: #9efb50;
  --amber: #ffb347;

  --font-display: "Space Grotesk", system-ui, sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, monospace;

  --text-base: clamp(1rem, 0.95rem + 0.3vw, 1.125rem);
  --text-h1: clamp(2.6rem, 1.4rem + 5.2vw, 5.4rem);
  --text-h2: clamp(1.8rem, 1.3rem + 2.2vw, 3rem);
  --space-section: clamp(5rem, 4rem + 6vw, 11rem);

  --duration: 600ms;
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
}

* { box-sizing: border-box; margin: 0; }
html { scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-display);
  font-size: var(--text-base);
  line-height: 1.65;
  overflow-x: hidden;
}

/* Fondo: rejilla técnica viva (canvas) + vignette */
#grid-bg {
  position: fixed; inset: 0; z-index: 0; pointer-events: none;
  opacity: 0.9;
}
body::before {
  content: ""; position: fixed; inset: 0; z-index: 1; pointer-events: none;
  background: radial-gradient(ellipse 90% 65% at 50% 0%, rgba(28, 74, 92, 0.55), transparent 72%);
}
main, .nav, .footer { position: relative; z-index: 2; }

/* ═══ Navegación ═══ */
.nav {
  position: sticky; top: 0; z-index: 50;
  display: flex; align-items: center; justify-content: space-between;
  padding: 1rem clamp(1.2rem, 5vw, 4rem);
  background: rgba(11, 22, 38, 0.8);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}
.nav-logo { display: flex; align-items: center; gap: 0.55rem; text-decoration: none; color: var(--text); }
.logo-mark {
  color: var(--cyan);
  text-shadow: 0 0 14px var(--cyan);
  font-size: 1.15rem;
}
.logo-text { font-weight: 700; letter-spacing: 0.22em; font-size: 1rem; }
.logo-text em { font-style: normal; color: var(--cyan); }
.nav nav { display: flex; align-items: center; gap: clamp(0.8rem, 2.5vw, 2rem); }
.nav nav a {
  color: var(--text-dim); text-decoration: none; font-size: 0.86rem;
  letter-spacing: 0.06em; transition: color 200ms;
}
.nav nav a:hover, .nav nav a:focus-visible { color: var(--cyan); }
.nav-cta {
  color: var(--bg) !important; background: var(--cyan);
  padding: 0.5rem 1rem; font-weight: 600;
  clip-path: polygon(8px 0, 100% 0, 100% calc(100% - 8px), calc(100% - 8px) 100%, 0 100%, 0 8px);
}
.nav-cta:hover { background: var(--volt); }

/* ═══ Tipografía común ═══ */
.kicker {
  font-family: var(--font-mono); font-size: 0.72rem; letter-spacing: 0.32em;
  color: var(--cyan); margin-bottom: 1.1rem;
}
h1 { font-size: var(--text-h1); line-height: 1.04; font-weight: 700; letter-spacing: -0.02em; }
h2 { font-size: var(--text-h2); line-height: 1.15; font-weight: 700; letter-spacing: -0.01em; margin-bottom: 1rem; }
h3 { font-size: 1.18rem; margin-bottom: 0.5rem; }
section { padding: var(--space-section) clamp(1.2rem, 6vw, 6rem); max-width: 1280px; margin: 0 auto; }

.grad-a {
  background: linear-gradient(100deg, var(--cyan), #7ee8fa);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.grad-b {
  background: linear-gradient(100deg, var(--volt), var(--cyan));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}

/* ═══ Hero ═══ */
.hero { padding-top: clamp(4rem, 10vh, 8rem); text-align: left; }
.hero-sub { max-width: 38rem; margin-top: 1.6rem; color: var(--text-dim); font-size: clamp(1.05rem, 1rem + 0.4vw, 1.3rem); }
.hero-sub strong { color: var(--text); font-weight: 500; }
.hero-ctas { display: flex; flex-wrap: wrap; gap: 1rem; margin-top: 2.2rem; }
.hero-note { font-family: var(--font-mono); font-size: 0.72rem; color: var(--text-dim); margin-top: 0.9rem; letter-spacing: 0.04em; }

.btn-primary, .btn-ghost {
  display: inline-block; text-decoration: none; font-weight: 600;
  padding: 0.95rem 1.7rem; font-size: 1rem; letter-spacing: 0.02em;
  transition: transform var(--duration) var(--ease), box-shadow var(--duration) var(--ease), background 200ms;
  clip-path: polygon(12px 0, 100% 0, 100% calc(100% - 12px), calc(100% - 12px) 100%, 0 100%, 0 12px);
}
.btn-primary {
  background: var(--cyan); color: var(--bg);
  box-shadow: 0 0 28px rgba(64, 224, 208, 0.35);
}
.btn-primary:hover { background: var(--volt); transform: translateY(-2px); box-shadow: 0 8px 36px rgba(158, 251, 80, 0.4); }
.btn-ghost {
  color: var(--text); border: 1px solid var(--line-strong);
  background: rgba(64, 224, 208, 0.05);
}
.btn-ghost:hover { border-color: var(--cyan); color: var(--cyan); transform: translateY(-2px); }

/* Métricas */
.stats {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
  gap: 1px; margin-top: 4rem; background: var(--line);
  border: 1px solid var(--line);
}
.stat { background: var(--bg-raise); padding: 1.6rem 1.4rem; }
.stat-num {
  display: block; font-family: var(--font-mono); font-size: clamp(1.7rem, 1.2rem + 1.8vw, 2.6rem);
  font-weight: 500; color: var(--cyan); text-shadow: 0 0 22px rgba(64, 224, 208, 0.45);
}
.stat-label { font-size: 0.8rem; color: var(--text-dim); }
.stats-note { font-size: 0.68rem; color: var(--text-dim); margin-top: 0.7rem; font-family: var(--font-mono); }

/* ═══ Problema ═══ */
.problema { border-top: 1px solid var(--line); }
.problema-grid { display: grid; gap: 3rem; grid-template-columns: 1fr; }
@media (min-width: 880px) { .problema-grid { grid-template-columns: 1.1fr 1fr; align-items: center; } }
.problema p { color: var(--text-dim); max-width: 34rem; }
.problema-lista { list-style: none; padding: 0; display: grid; gap: 0.9rem; }
.problema-lista li {
  padding: 1rem 1.2rem 1rem 2.6rem; position: relative;
  background: var(--bg-raise); border: 1px solid var(--line);
  font-size: 0.95rem;
}
.problema-lista li::before {
  content: "⚠"; position: absolute; left: 1rem; color: var(--amber);
}

/* ═══ Soluciones ═══ */
.cards { display: grid; gap: 1.4rem; grid-template-columns: 1fr; margin-top: 2.5rem; }
@media (min-width: 720px) { .cards { grid-template-columns: 1fr 1fr; } }
.card {
  position: relative; padding: 2rem 1.8rem;
  background: linear-gradient(165deg, rgba(24, 48, 66, 0.75), rgba(13, 26, 44, 0.9));
  border: 1px solid var(--line);
  clip-path: polygon(18px 0, 100% 0, 100% calc(100% - 18px), calc(100% - 18px) 100%, 0 100%, 0 18px);
  transition: transform var(--duration) var(--ease), border-color 300ms;
}
.card:hover { transform: translateY(-6px); border-color: var(--line-strong); }
.card::before {
  content: ""; position: absolute; top: 0; left: 18px; right: 35%; height: 1px;
  background: linear-gradient(90deg, var(--cyan), transparent);
}
.card-num {
  font-family: var(--font-mono); color: var(--cyan); font-size: 0.78rem;
  letter-spacing: 0.3em; display: block; margin-bottom: 0.9rem;
}
.card p { color: var(--text-dim); font-size: 0.95rem; }
.card p em { color: var(--volt); font-style: normal; }
.card-tag {
  margin-top: 1rem; font-family: var(--font-mono); font-size: 0.68rem !important;
  letter-spacing: 0.14em; color: var(--cyan) !important; text-transform: uppercase;
}

/* ═══ Método ═══ */
.metodo { border-top: 1px solid var(--line); }
.pasos { list-style: none; padding: 0; display: grid; gap: 1.4rem; margin-top: 2.5rem; counter-reset: paso; }
@media (min-width: 880px) { .pasos { grid-template-columns: repeat(3, 1fr); } }
.paso {
  padding: 1.8rem 1.6rem; background: var(--bg-raise); border: 1px solid var(--line);
  border-left: 2px solid var(--cyan); position: relative;
}
.paso-fase { font-family: var(--font-mono); font-size: 0.68rem; letter-spacing: 0.22em; color: var(--volt); display: block; margin-bottom: 0.8rem; }
.paso p { color: var(--text-dim); font-size: 0.94rem; }

/* ═══ Sectores ═══ */
.sector-grid { display: grid; gap: 1px; background: var(--line); border: 1px solid var(--line); margin-top: 2.5rem; grid-template-columns: 1fr; }
@media (min-width: 720px) { .sector-grid { grid-template-columns: 1fr 1fr; } }
.sector { background: var(--bg); padding: 2.2rem 2rem; transition: background 300ms; }
.sector:hover { background: var(--bg-raise); }
.sector h3 { color: var(--cyan); }
.sector p { color: var(--text-dim); font-size: 0.95rem; }

/* ═══ Por qué ═══ */
.porque { border-top: 1px solid var(--line); }
.porque-grid { display: grid; gap: 2.5rem; margin-top: 2.5rem; grid-template-columns: 1fr; }
@media (min-width: 880px) { .porque-grid { grid-template-columns: repeat(3, 1fr); } }
.porque-grid h3 { color: var(--volt); }
.porque-grid p { color: var(--text-dim); font-size: 0.95rem; }

/* ═══ CTA final ═══ */
.cta-final {
  text-align: center; border-top: 1px solid var(--line);
}
.cta-final p { color: var(--text-dim); max-width: 38rem; margin: 0 auto; }
.cta-final .hero-ctas { justify-content: center; }
.contacto-datos {
  margin-top: 2.4rem; font-family: var(--font-mono); font-size: 0.85rem;
  display: flex; flex-wrap: wrap; gap: 0.8rem; justify-content: center; color: var(--text-dim);
}
.contacto-datos a { color: var(--cyan); text-decoration: none; }
.contacto-datos a:hover { text-decoration: underline; }

/* ═══ Footer ═══ */
.footer {
  border-top: 1px solid var(--line); padding: 2.2rem clamp(1.2rem, 6vw, 6rem);
  text-align: center; font-size: 0.85rem; color: var(--text-dim);
}
.footer-fine { font-family: var(--font-mono); font-size: 0.68rem; margin-top: 0.5rem; letter-spacing: 0.08em; }

/* ═══ WhatsApp flotante ═══ */
.wa-float {
  position: fixed; right: 1.4rem; bottom: 1.4rem; z-index: 60;
  width: 56px; height: 56px; display: grid; place-items: center;
  background: #25d366; color: #04140a; border-radius: 50%;
  box-shadow: 0 6px 26px rgba(37, 211, 102, 0.45);
  transition: transform var(--duration) var(--ease);
}
.wa-float:hover { transform: scale(1.1); }

/* ═══ Animación de entrada (compositor-friendly) ═══ */
.reveal { opacity: 0; transform: translateY(26px); transition: opacity var(--duration) var(--ease), transform var(--duration) var(--ease); }
.reveal.in { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  html { scroll-behavior: auto; }
  .btn-primary:hover, .btn-ghost:hover, .card:hover, .wa-float:hover { transform: none; }
}

@media (max-width: 640px) {
  .nav nav a:not(.nav-cta) { display: none; }
  .hero-ctas .btn-primary, .hero-ctas .btn-ghost { width: 100%; text-align: center; }
}

/* ═══ Hero 3D: turbina holográfica ═══ */
.hero-grid { display: grid; gap: 2.5rem; grid-template-columns: 1fr; align-items: center; }
@media (min-width: 980px) { .hero-grid { grid-template-columns: 1.05fr 0.95fr; } }
.hero-3d {
  position: relative; min-height: 340px; height: clamp(340px, 44vw, 520px);
  border: 1px solid var(--line);
  background:
    radial-gradient(ellipse 70% 60% at 50% 45%, rgba(64, 224, 208, 0.07), transparent 70%),
    rgba(16, 30, 50, 0.5);
  clip-path: polygon(22px 0, 100% 0, 100% calc(100% - 22px), calc(100% - 22px) 100%, 0 100%, 0 22px);
}
#turbina { position: absolute; inset: 0; width: 100%; height: 100%; }
.hero-3d-tag {
  position: absolute; left: 1.1rem; bottom: 0.9rem;
  font-family: var(--font-mono); font-size: 0.62rem; letter-spacing: 0.26em;
  color: var(--cyan); opacity: 0.8;
}
.hero-3d::after {
  content: ""; position: absolute; top: 0; left: 22px; right: 30%; height: 1px;
  background: linear-gradient(90deg, var(--cyan), transparent);
}

/* Sectores con imagen real */
.sector {
  position: relative; isolation: isolate; overflow: hidden;
  background:
    linear-gradient(180deg, rgba(11, 22, 38, 0.08) 0%, rgba(11, 22, 38, 0.72) 82%),
    var(--img) center / cover no-repeat;
  min-height: 250px; display: flex; flex-direction: column; justify-content: flex-end;
  transition: transform var(--duration) var(--ease);
}
.sector:hover { background-color: transparent; transform: scale(1.015); }
.sector::after {
  content: ""; position: absolute; inset: 0; z-index: -1;
  background: linear-gradient(180deg, transparent 40%, rgba(64, 224, 208, 0.06));
  opacity: 0; transition: opacity 300ms;
}
.sector:hover::after { opacity: 1; }

/* ═══ Galería de hologramas interactivos ═══ */
.holo-sec { border-top: 1px solid var(--line); text-align: center; }
.holo-intro { color: var(--text-dim); max-width: 36rem; margin: 0 auto; }
.holo-intro strong { color: var(--cyan); font-weight: 500; }
.holo-tabs { display: flex; flex-wrap: wrap; gap: 0.7rem; justify-content: center; margin-top: 2rem; }
.holo-tab {
  font-family: var(--font-mono); font-size: 0.82rem; letter-spacing: 0.08em;
  color: var(--text-dim); background: rgba(64, 224, 208, 0.06);
  border: 1px solid var(--line); padding: 0.65rem 1.3rem; cursor: pointer;
  transition: all 250ms var(--ease);
  clip-path: polygon(10px 0, 100% 0, 100% calc(100% - 10px), calc(100% - 10px) 100%, 0 100%, 0 10px);
}
.holo-tab:hover { color: var(--cyan); border-color: var(--line-strong); }
.holo-tab.activo {
  color: var(--bg); background: var(--cyan); font-weight: 600;
  box-shadow: 0 0 24px rgba(64, 224, 208, 0.4);
}
.holo-visor {
  position: relative; margin-top: 1.6rem; height: clamp(360px, 52vw, 560px);
  border: 1px solid var(--line);
  background:
    radial-gradient(ellipse 65% 55% at 50% 48%, rgba(64, 224, 208, 0.09), transparent 70%),
    rgba(16, 30, 50, 0.45);
  clip-path: polygon(26px 0, 100% 0, 100% calc(100% - 26px), calc(100% - 26px) 100%, 0 100%, 0 26px);
  cursor: grab; touch-action: none;
}
.holo-visor:active { cursor: grabbing; }
#holo-canvas { position: absolute; inset: 0; width: 100%; height: 100%; }
.holo-hint {
  position: absolute; bottom: 0.9rem; left: 0; right: 0;
  font-family: var(--font-mono); font-size: 0.64rem; letter-spacing: 0.22em;
  color: var(--text-dim); pointer-events: none;
}
.holo-visor::after {
  content: ""; position: absolute; top: 0; left: 26px; right: 28%; height: 1px;
  background: linear-gradient(90deg, var(--cyan), transparent);
}