:root {
  --negro: #0B0B0C;
  --panel: rgba(22, 22, 25, .62);
  --borde: rgba(255, 255, 255, .09);
  --blanco: #F4F4F5;
  --gris: #9A9AA3;
  --rojo: #FF3020;
  --rojo-osc: #C81E12;
  --radio: 18px;
  --ease: cubic-bezier(.2, .8, .2, 1);
  --titulo: "Space Grotesk", system-ui, sans-serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  background: radial-gradient(1200px 700px at 85% -10%, rgba(255, 48, 32, .16), transparent 60%), var(--negro);
  color: var(--blanco);
  font: 400 17px/1.6 Inter, system-ui, sans-serif;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
img, svg { display: block; max-width: 100%; }
::selection { background: var(--rojo); color: #fff; }
:focus-visible { outline: 2px solid var(--rojo); outline-offset: 3px; border-radius: 6px; }

#x3d { position: fixed; inset: 0; width: 100%; height: 100%; z-index: 0; pointer-events: none; }
main, .pie { position: relative; z-index: 1; }
.progreso { position: fixed; top: 0; left: 0; height: 2px; width: 100%; background: var(--rojo); transform-origin: 0 50%; transform: scaleX(0); z-index: 60; }

/* Nav */
.nav {
  position: fixed; top: 14px; left: 16px; right: 16px; margin: 0 auto; max-width: 1180px; z-index: 50;
  display: flex; align-items: center; justify-content: space-between;
  padding: 10px 12px 10px 16px; border-radius: 16px;
  border: 1px solid transparent; transition: background .4s, border-color .4s, backdrop-filter .4s;
}
.nav.solida { background: rgba(11, 11, 12, .7); border-color: var(--borde); backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px); }
.insignia { width: 38px; height: 42px; transition: transform .5s var(--ease); }
.insignia:hover { transform: rotate(-12deg) scale(1.08); }
.nav nav { display: flex; align-items: center; gap: 28px; }
.nav nav a:not(.btn) { color: var(--gris); font-size: 15px; transition: color .2s; position: relative; }
.nav nav a:not(.btn)::after { content: ""; position: absolute; left: 0; bottom: -4px; height: 1px; width: 100%; background: var(--rojo); transform: scaleX(0); transition: transform .3s var(--ease); }
.nav nav a:not(.btn):hover, .nav nav a.activo { color: var(--blanco); }
.nav nav a.activo::after, .nav nav a:not(.btn):hover::after { transform: scaleX(1); }
.hamburguesa { display: none; background: none; border: 0; width: 44px; height: 44px; cursor: pointer; }
.hamburguesa span { display: block; width: 22px; height: 2px; margin: 6px auto; background: var(--blanco); transition: transform .3s var(--ease); }
.hamburguesa[aria-expanded="true"] span:first-child { transform: translateY(4px) rotate(45deg); }
.hamburguesa[aria-expanded="true"] span:last-child { transform: translateY(-4px) rotate(-45deg); }

/* Botones */
.btn {
  position: relative; overflow: hidden; display: inline-flex; align-items: center; justify-content: center;
  padding: 15px 28px; border-radius: 999px; font: 600 16px Inter, sans-serif; cursor: pointer; border: 0;
  transition: transform .35s var(--ease), box-shadow .35s, background .3s;
}
.btn-sm { padding: 10px 20px; font-size: 14px; }
.btn-rojo { background: var(--rojo); color: #fff; box-shadow: 0 10px 30px -10px rgba(255, 48, 32, .7); }
.btn-rojo:hover { box-shadow: 0 16px 40px -10px rgba(255, 48, 32, .9); }
.btn-rojo::before { content: ""; position: absolute; inset: 0; background: linear-gradient(110deg, transparent 30%, rgba(255,255,255,.35) 50%, transparent 70%); transform: translateX(-120%); transition: transform .8s var(--ease); }
.btn-rojo:hover::before { transform: translateX(120%); }
.btn-linea { color: var(--blanco); box-shadow: inset 0 0 0 1px rgba(255,255,255,.25); }
.btn-linea:hover { box-shadow: inset 0 0 0 1px var(--blanco); background: rgba(255,255,255,.05); }
.btn:active { transform: scale(.96); }
.onda { position: absolute; border-radius: 50%; background: rgba(255,255,255,.45); transform: scale(0); animation: onda .7s var(--ease) forwards; pointer-events: none; }
@keyframes onda { to { transform: scale(4); opacity: 0; } }

/* Hero */
.hero { min-height: 100svh; display: flex; align-items: center; padding: 120px max(16px, calc((100% - 1180px) / 2)) 80px; position: relative; }
.hero-txt { max-width: 640px; }
.eyebrow { color: var(--rojo); font: 600 13px/1 Inter, sans-serif; letter-spacing: .18em; text-transform: uppercase; margin-bottom: 20px; }
h1, h2, h3 { font-family: var(--titulo); letter-spacing: -.02em; line-height: 1.05; font-weight: 700; }
h1 { font-size: clamp(44px, 7vw, 88px); margin-bottom: 26px; }
h1 em { font-style: normal; color: var(--rojo); }
h2 { font-size: clamp(32px, 4.4vw, 54px); max-width: 860px; }
h3 { font-size: 22px; font-weight: 600; margin-bottom: 10px; }
.gris { color: var(--gris); }
.lead { font-size: clamp(17px, 1.6vw, 20px); color: #C9C9CF; max-width: 560px; }
.acciones { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 36px; }
.x-estatica { display: none; position: absolute; right: 8%; top: 50%; translate: 0 -50%; width: min(32vw, 380px); opacity: .9; }
body:not(.con3d) .x-estatica { display: block; }
.scroll-hint { position: absolute; bottom: 30px; left: 50%; translate: -50% 0; width: 26px; height: 42px; border: 1px solid rgba(255,255,255,.3); border-radius: 14px; }
.scroll-hint span { position: absolute; left: 50%; top: 8px; width: 3px; height: 8px; margin-left: -1.5px; border-radius: 2px; background: var(--blanco); animation: rueda 1.8s infinite; }
@keyframes rueda { 0% { opacity: 0; transform: translateY(0); } 30% { opacity: 1; } 100% { opacity: 0; transform: translateY(14px); } }

.partir .p { display: inline-block; overflow: hidden; vertical-align: top; padding-bottom: .08em; }
.partir .p > span { display: inline-block; transform: translateY(110%); transition: transform 1s var(--ease); transition-delay: var(--d); }
.partir.in .p > span { transform: none; }

/* Cinta */
.cinta { position: relative; z-index: 1; border-block: 1px solid var(--borde); background: rgba(11,11,12,.55); backdrop-filter: blur(6px); overflow: hidden; padding: 18px 0; }
.cinta-pista { display: flex; width: max-content; animation: cinta 40s linear infinite; }
.cinta span { font: 500 18px var(--titulo); color: var(--gris); padding: 0 34px; white-space: nowrap; }
.cinta span::before { content: "✕"; color: var(--rojo); margin-right: 34px; font-size: 12px; vertical-align: 2px; }
@keyframes cinta { to { transform: translateX(-50%); } }

/* Secciones */
.seccion { padding: 130px max(16px, calc((100% - 1180px) / 2)); }
.encabezado { margin-bottom: 56px; }
.rejilla { display: grid; gap: 18px; }
.r3 { grid-template-columns: repeat(3, 1fr); }
.tarjeta {
  position: relative; background: var(--panel); border: 1px solid var(--borde); border-radius: var(--radio);
  padding: 32px; backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
  transition: transform .5s var(--ease), border-color .4s;
}
.tarjeta p { color: var(--gris); font-size: 16px; }
.luz::before { content: ""; position: absolute; inset: 0; border-radius: inherit; pointer-events: none; opacity: 0; transition: opacity .4s;
  background: radial-gradient(420px circle at var(--mx, 50%) var(--my, 50%), rgba(255, 48, 32, .14), transparent 45%); }
.luz:hover::before { opacity: 1; }
.luz:hover { border-color: rgba(255, 48, 32, .35); transform: translateY(-4px); }
.num { display: block; font: 600 14px var(--titulo); color: var(--rojo); margin-bottom: 40px; }

.cifras { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; padding: 90px max(16px, calc((100% - 1180px) / 2)) 0; }
.cifra { border-left: 1px solid var(--borde); padding-left: 22px; }
.cifra b { display: block; font: 700 clamp(40px, 5vw, 64px)/1 var(--titulo); letter-spacing: -.03em; }
.cifra span { color: var(--gris); font-size: 15px; }

.pasos { list-style: none; display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; counter-reset: paso; }
.pasos li { counter-increment: paso; border-top: 1px solid var(--borde); padding-top: 24px; position: relative; }
.pasos li::before { content: "0" counter(paso); position: absolute; top: -1px; left: 0; width: 40px; height: 1px; background: var(--rojo); font: 600 13px var(--titulo); color: var(--rojo); padding-top: 10px; }
.pasos b { display: block; font: 600 22px var(--titulo); margin: 18px 0 8px; }
.pasos p { color: var(--gris); font-size: 16px; }

.proyecto { display: flex; flex-direction: column; }
.tag { align-self: flex-start; font-size: 12px; font-weight: 600; letter-spacing: .06em; text-transform: uppercase; color: var(--rojo); background: rgba(255, 48, 32, .1); border-radius: 999px; padding: 6px 12px; margin-bottom: 26px; }
.dato { margin-top: auto; padding-top: 26px; color: var(--gris); font-size: 14px; }
.dato b { display: block; font: 700 34px/1.1 var(--titulo); color: var(--blanco); }

.dos-col { display: grid; grid-template-columns: 1.1fr .9fr; gap: 70px; align-items: start; }
.dos-col h2 { margin-bottom: 26px; }
.mv { display: grid; grid-template-columns: 1fr 1fr; gap: 26px; margin-top: 40px; }
.mv b { font: 600 18px var(--titulo); color: var(--rojo); }
.mv p { color: var(--gris); font-size: 15px; margin-top: 6px; }
.linea-tiempo { list-style: none; border-left: 1px solid var(--borde); padding-left: 30px; margin-top: 50px; }
.linea-tiempo li { position: relative; padding-bottom: 36px; }
.linea-tiempo li::before { content: ""; position: absolute; left: -36px; top: 6px; width: 11px; height: 11px; border-radius: 50%; background: var(--negro); border: 2px solid var(--rojo); }
.linea-tiempo span { font: 600 14px var(--titulo); color: var(--rojo); }
.linea-tiempo b { display: block; font: 600 20px var(--titulo); margin: 2px 0 4px; }
.linea-tiempo p { color: var(--gris); font-size: 15px; }
.valores { list-style: none; display: grid; grid-template-columns: repeat(5, 1fr); gap: 14px; margin-top: 80px; }
.valores li { border: 1px solid var(--borde); border-radius: 14px; padding: 22px; font-size: 14px; color: var(--gris); background: var(--panel); }
.valores b { display: block; color: var(--blanco); font: 600 17px var(--titulo); margin-bottom: 6px; }

.equipo { list-style: none; display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.equipo li { padding: 10px 10px 16px; border: 1px solid var(--borde); border-radius: 16px; background: var(--panel); transition: border-color .3s, transform .4s var(--ease); }
.equipo li:hover { border-color: rgba(255, 48, 32, .4); transform: translateY(-4px); }
.foto { aspect-ratio: 4 / 5; border-radius: 10px; overflow: hidden; background: #2A2A2F; margin-bottom: 14px; }
.foto img { width: 100%; height: 100%; object-fit: cover; object-position: 50% 30%; filter: grayscale(1) contrast(1.05); transition: filter .5s, transform .7s var(--ease); }
.equipo li:hover .foto img { filter: none; transform: scale(1.05); }
.equipo b { display: block; font: 600 17px var(--titulo); padding: 0 6px; }
@media (max-width: 900px) { .equipo { grid-template-columns: 1fr 1fr; gap: 12px; } .equipo b { font-size: 15px; } }

.testimonio blockquote { font: 500 19px/1.5 var(--titulo); margin-bottom: 26px; }
.testimonio figcaption { color: var(--gris); font-size: 14px; }
.testimonio figcaption b { display: block; color: var(--blanco); font-size: 15px; }

.datos { list-style: none; margin-top: 40px; }
.datos li { display: flex; justify-content: space-between; gap: 20px; padding: 18px 0; border-bottom: 1px solid var(--borde); }
.datos span { color: var(--gris); }
.datos a { transition: color .2s; }
.datos a:hover { color: var(--rojo); }
.form { display: grid; gap: 16px; }
.form label { display: grid; gap: 8px; font-size: 14px; color: var(--gris); }
.form i { font-style: normal; opacity: .7; }
.form input, .form textarea {
  font: inherit; color: var(--blanco); background: rgba(0,0,0,.35); border: 1px solid var(--borde); border-radius: 12px; padding: 14px 16px; resize: vertical;
  transition: border-color .25s, box-shadow .25s;
}
.form input:focus, .form textarea:focus { outline: none; border-color: var(--rojo); box-shadow: 0 0 0 4px rgba(255,48,32,.15); }
.form .invalido { border-color: #ff6a5e; }
.form button { margin-top: 6px; }
.form button[disabled] { opacity: .6; pointer-events: none; }
.estado { min-height: 1.4em; font-size: 15px; }
.estado.ok { color: #4ade80; }
.estado.error { color: #ff6a5e; }
.oculto { position: absolute; left: -9999px; }

.pie { text-align: center; padding: 80px 16px 50px; border-top: 1px solid var(--borde); background: rgba(11,11,12,.8); }
.pie-logo { width: 190px; margin: 0 auto 14px; }
.pie p { font-size: 14px; }

/* Revelado al hacer scroll */
[data-reveal] { opacity: 0; transform: translateY(34px); transition: opacity 1s var(--ease), transform 1s var(--ease); transition-delay: var(--d, 0s); }
[data-reveal].in { opacity: 1; transform: none; }

.barra-movil { display: none; }

@media (max-width: 900px) {
  body { font-size: 16px; }
  .pasos, .dos-col, .mv { grid-template-columns: 1fr; }
  .cifras { grid-template-columns: 1fr 1fr; row-gap: 36px; padding-top: 70px; }
  .dos-col { gap: 30px; }
  .seccion { padding-block: 80px; }
  .encabezado { margin-bottom: 36px; }
  .hero { padding-top: 110px; }
  .acciones .btn { flex: 1 1 100%; }
  .tarjeta { padding: 26px; }
  .num { margin-bottom: 24px; }

  /* Tarjetas, testimonios y valores: carrusel deslizable con el dedo */
  .r3, .valores {
    display: flex; gap: 12px; overflow-x: auto; scroll-snap-type: x mandatory; overscroll-behavior-x: contain;
    margin-inline: -16px; padding: 4px 16px 18px; scrollbar-width: none;
  }
  .r3::-webkit-scrollbar, .valores::-webkit-scrollbar { display: none; }
  .r3 > * { flex: 0 0 84%; scroll-snap-align: center; }
  .valores > * { flex: 0 0 62%; scroll-snap-align: start; }
  .valores { margin-top: 50px; }
  .r3 [data-reveal], .valores [data-reveal] { transform: none; }
  .encabezado::after { content: "Desliza →"; display: block; margin-top: 14px; font-size: 13px; color: var(--gris); }
  #equipo .encabezado::after, .proceso .encabezado::after { content: none; }
  .luz:hover { transform: none; }

  /* Menú a pantalla completa */
  .hamburguesa { display: block; position: relative; z-index: 2; }
  .insignia { position: relative; z-index: 2; }
  .nav nav {
    position: fixed; inset: 0; z-index: 1; flex-direction: column; justify-content: center; gap: 30px;
    background: rgba(11,11,12,.97); backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
    opacity: 0; pointer-events: none; transition: opacity .35s;
  }
  .nav nav.visible { opacity: 1; pointer-events: auto; }
  /* a backdrop-filter on .nav would trap the fixed menu inside the bar */
  .nav:has(nav.visible) { backdrop-filter: none; -webkit-backdrop-filter: none; background: transparent; border-color: transparent; }
  .nav nav a:not(.btn) { font: 600 34px var(--titulo); color: var(--blanco); opacity: 0; transform: translateY(16px); transition: opacity .4s, transform .5s var(--ease); }
  .nav nav.visible a:not(.btn) { opacity: 1; transform: none; }
  .nav nav.visible a:nth-child(2) { transition-delay: .05s; }
  .nav nav.visible a:nth-child(3) { transition-delay: .1s; }
  .nav nav.visible a:nth-child(4) { transition-delay: .15s; }
  .nav nav .btn { padding: 16px 40px; font-size: 17px; }
  .x-estatica { right: 50%; translate: 50% -50%; opacity: .15; width: 70vw; }

  /* Barra fija inferior: llamar y WhatsApp */
  .barra-movil {
    display: flex; gap: 10px; position: fixed; left: 12px; right: 12px; bottom: calc(12px + env(safe-area-inset-bottom)); z-index: 40;
    padding: 8px; border-radius: 18px; background: rgba(11,11,12,.85); border: 1px solid var(--borde); backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px);
    transform: translateY(140%); transition: transform .5s var(--ease);
  }
  .barra-movil.visible { transform: none; }
  .barra-movil .btn { flex: 1; padding: 13px 10px; font-size: 15px; }
  .pie { padding-bottom: 120px; }
}

@media (hover: none) {
  .foto img { filter: none; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition-duration: .01ms !important; transition-delay: 0s !important; }
  [data-reveal], .partir .p > span { opacity: 1; transform: none; }
}