/* ============================================================
   Tríada — hoja de estilos
   Paleta: tinta / cal / ámbar / jade / acero
   ============================================================ */

:root{
  --tinta:      #101820;
  --tinta-alta: #16212C;
  --acero:      #1E2A35;
  --cal:        #EDEFF2;
  --cal-suave:  #F7F8FA;
  --blanco:     #FFFFFF;
  --ambar:      #F0A02C;
  --ambar-hondo:#C97A12;
  --jade:       #12776B;
  --jade-claro: #1B9A88;
  --humo:       #6B7684;
  --humo-claro: #9AA5B1;
  --linea:      rgba(16,24,32,.12);
  --linea-clara:rgba(255,255,255,.14);

  --display: "Bricolage Grotesque", "Segoe UI", sans-serif;
  --texto:   "Inter Tight", system-ui, -apple-system, sans-serif;
  --mono:    "IBM Plex Mono", ui-monospace, monospace;

  --ancho: 1180px;
  --radio: 14px;
  --transicion: 260ms cubic-bezier(.2,.7,.3,1);
}

/* ---------- base ---------- */
*,*::before,*::after{ box-sizing:border-box; }

html{ scroll-behavior:smooth; scroll-padding-top:84px; }

body{
  margin:0;
  background:var(--blanco);
  color:var(--tinta);
  font-family:var(--texto);
  font-size:17px;
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
}

img,svg{ display:block; max-width:100%; }
a{ color:inherit; }

::selection{ background:var(--ambar); color:var(--tinta); }

:focus-visible{
  outline:2px solid var(--ambar);
  outline-offset:3px;
  border-radius:4px;
}

.skip{
  position:absolute; left:-9999px; top:0; z-index:100;
  background:var(--ambar); color:var(--tinta);
  padding:.7rem 1.1rem; font-weight:600;
}
.skip:focus{ left:1rem; top:1rem; }

.contenedor{
  width:100%;
  max-width:var(--ancho);
  margin-inline:auto;
  padding-inline:clamp(1.2rem, 4vw, 2.5rem);
}

/* ---------- tipografía compartida ---------- */
.eyebrow{
  font-family:var(--mono);
  font-size:.72rem;
  letter-spacing:.18em;
  text-transform:uppercase;
  color:var(--ambar);
  margin:0 0 1.1rem;
}
.eyebrow--oscuro{ color:var(--jade); }

.titular{
  font-family:var(--display);
  font-weight:800;
  font-size:clamp(2.4rem, 5.6vw, 4.1rem);
  line-height:1.03;
  letter-spacing:-.03em;
  margin:0 0 1.4rem;
}
.titular em{
  font-style:normal;
  color:var(--ambar);
}

.titulo{
  font-family:var(--display);
  font-weight:700;
  font-size:clamp(1.7rem, 3.4vw, 2.6rem);
  line-height:1.12;
  letter-spacing:-.022em;
  margin:0 0 .9rem;
  max-width:20ch;
}

.entrada,.bajada{
  color:var(--humo);
  font-size:1.06rem;
  margin:0;
  max-width:52ch;
}

.cabecera{ margin-bottom:clamp(2.4rem,5vw,3.6rem); }
.cabecera--claro .titulo{ color:var(--blanco); }
.cabecera--claro .bajada{ color:var(--humo-claro); }

.etiqueta{
  font-family:var(--mono);
  font-size:.68rem;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--humo-claro);
}

/* ---------- botones ---------- */
.boton{
  display:inline-flex; align-items:center; justify-content:center;
  gap:.5rem;
  background:var(--ambar);
  color:var(--tinta);
  font-family:var(--texto);
  font-weight:600;
  font-size:.97rem;
  text-decoration:none;
  padding:.85rem 1.5rem;
  border:1px solid var(--ambar);
  border-radius:999px;
  cursor:pointer;
  transition:transform var(--transicion), background var(--transicion), box-shadow var(--transicion);
}
.boton:hover{
  background:#FFB544;
  transform:translateY(-2px);
  box-shadow:0 10px 24px rgba(240,160,44,.28);
}
.boton--chico{ padding:.55rem 1.1rem; font-size:.9rem; }
.boton--ancho{ width:100%; padding:1rem 1.5rem; }
.boton--fantasma{
  background:transparent;
  color:var(--blanco);
  border-color:var(--linea-clara);
}
.boton--fantasma:hover{
  background:rgba(255,255,255,.07);
  box-shadow:none;
}

/* ============================================================
   BARRA SUPERIOR
   ============================================================ */
.barra{
  position:sticky; top:0; z-index:50;
  background:rgba(16,24,32,.88);
  backdrop-filter:blur(12px);
  border-bottom:1px solid transparent;
  transition:border-color var(--transicion), background var(--transicion);
}
.barra.esta-fija{
  border-bottom-color:var(--linea-clara);
  background:rgba(16,24,32,.96);
}
.barra__interior{
  display:flex; align-items:center; justify-content:space-between;
  gap:1rem;
  min-height:68px;
}

.marca{
  display:inline-flex; align-items:center; gap:.55rem;
  color:var(--blanco);
  text-decoration:none;
  font-family:var(--display);
  font-weight:800;
  font-size:1.22rem;
  letter-spacing:-.02em;
}
.marca__glifo{ width:26px; color:var(--ambar); }

.nav{ display:flex; align-items:center; gap:1.7rem; }
.nav a{
  color:var(--humo-claro);
  text-decoration:none;
  font-size:.94rem;
  font-weight:500;
  transition:color var(--transicion);
}
.nav a:hover{ color:var(--blanco); }
.nav .boton{ color:var(--tinta); }

.menu{
  display:none;
  flex-direction:column; gap:5px;
  background:none; border:0; cursor:pointer;
  padding:.5rem;
}
.menu span{
  display:block; width:24px; height:2px;
  background:var(--blanco);
  transition:transform var(--transicion), opacity var(--transicion);
}
.menu[aria-expanded="true"] span:nth-child(1){ transform:translateY(7px) rotate(45deg); }
.menu[aria-expanded="true"] span:nth-child(2){ opacity:0; }
.menu[aria-expanded="true"] span:nth-child(3){ transform:translateY(-7px) rotate(-45deg); }

/* ============================================================
   HERO
   ============================================================ */
.hero{
  background:
    radial-gradient(900px 500px at 78% 18%, rgba(18,119,107,.30), transparent 62%),
    radial-gradient(700px 460px at 10% 88%, rgba(240,160,44,.13), transparent 60%),
    var(--tinta);
  color:var(--blanco);
  padding-block:clamp(3.5rem, 8vw, 6.5rem) clamp(3.5rem, 8vw, 6rem);
  overflow:hidden;
}
.hero__grid{
  display:grid;
  grid-template-columns:1.05fr .95fr;
  gap:clamp(2rem,5vw,4rem);
  align-items:center;
}
.hero .entrada{ color:var(--humo-claro); }

.hero__acciones{
  display:flex; flex-wrap:wrap; gap:.8rem;
  margin-top:2rem;
}

.hero__marcas{
  display:flex; flex-wrap:wrap; gap:.5rem .8rem;
  list-style:none; margin:2.4rem 0 0; padding:0;
}
.hero__marcas li{
  font-family:var(--mono);
  font-size:.73rem;
  letter-spacing:.06em;
  color:var(--humo-claro);
  border:1px solid var(--linea-clara);
  border-radius:999px;
  padding:.35rem .85rem;
}

/* --- elemento distintivo: el sistema --- */
.sistema{
  position:relative;
  margin:0;
  aspect-ratio:1;
  max-width:420px;
  margin-inline:auto;
  width:100%;
}
.sistema__svg{ width:100%; height:100%; overflow:visible; }

.sistema__lineas path{
  fill:none;
  stroke:rgba(255,255,255,.22);
  stroke-width:1.2;
  stroke-dasharray:1;
  stroke-dashoffset:1;
  animation:trazar 1.5s cubic-bezier(.5,0,.2,1) forwards;
}
.sistema__lineas path:nth-child(2){ animation-delay:.28s; }
.sistema__lineas path:nth-child(3){ animation-delay:.56s; }

.sistema__orbita{
  fill:none;
  stroke:rgba(240,160,44,.28);
  stroke-width:1;
  stroke-dasharray:.006 .014;
  transform-origin:180px 200px;
  animation:girar 46s linear infinite;
}

@keyframes trazar{ to{ stroke-dashoffset:0; } }
@keyframes girar{ to{ transform:rotate(360deg); } }

.nodo{
  position:absolute;
  left:var(--x);
  top:var(--y);
  transform:translate(-50%,-50%);
  display:flex; flex-direction:column; align-items:center; gap:.55rem;
  background:none; border:0; padding:0;
  cursor:pointer;
  color:var(--blanco);
  opacity:0;
  animation:aparecer .7s ease forwards;
}
.nodo--direccion{ animation-delay:.5s; }
.nodo--operacion{ animation-delay:.75s; }
.nodo--ingenieria{ animation-delay:1s; }

@keyframes aparecer{ to{ opacity:1; } }

.nodo__punto{
  width:16px; height:16px; border-radius:50%;
  background:var(--ambar);
  box-shadow:0 0 0 6px rgba(240,160,44,.14);
  transition:box-shadow var(--transicion), transform var(--transicion);
}
.nodo--operacion .nodo__punto{
  background:var(--jade-claro);
  box-shadow:0 0 0 6px rgba(27,154,136,.16);
}
.nodo--ingenieria .nodo__punto{
  background:#7FA8D8;
  box-shadow:0 0 0 6px rgba(127,168,216,.16);
}

.nodo__etiqueta{
  display:flex; flex-direction:column; align-items:center;
  line-height:1.25;
  white-space:nowrap;
}
.nodo__etiqueta b{
  font-family:var(--display);
  font-weight:700;
  font-size:.95rem;
  letter-spacing:-.01em;
}
.nodo__etiqueta i{
  font-family:var(--mono);
  font-style:normal;
  font-size:.68rem;
  letter-spacing:.16em;
  color:var(--humo-claro);
}

.nodo:hover .nodo__punto,
.nodo.esta-activo .nodo__punto{
  transform:scale(1.25);
  box-shadow:0 0 0 11px rgba(240,160,44,.18);
}
.nodo--operacion:hover .nodo__punto,
.nodo--operacion.esta-activo .nodo__punto{ box-shadow:0 0 0 11px rgba(27,154,136,.22); }
.nodo--ingenieria:hover .nodo__punto,
.nodo--ingenieria.esta-activo .nodo__punto{ box-shadow:0 0 0 11px rgba(127,168,216,.22); }

.sistema__pie{
  position:absolute;
  left:50%; top:56%;
  transform:translate(-50%,-50%);
  width:44%;
  text-align:center;
  font-size:.83rem;
  line-height:1.5;
  color:var(--humo-claro);
  transition:color var(--transicion);
}

/* ============================================================
   SECCIONES GENÉRICAS
   ============================================================ */
.seccion{ padding-block:clamp(3.5rem, 8vw, 6.5rem); }
.seccion--cal{ background:var(--cal); }
.seccion--tinta{ background:var(--tinta); color:var(--blanco); }

/* ---------- servicios ---------- */
.servicios{
  display:grid;
  grid-template-columns:repeat(auto-fit, minmax(230px,1fr));
  gap:1.2rem;
}
.servicio{
  background:var(--blanco);
  border:1px solid var(--linea);
  border-radius:var(--radio);
  padding:1.7rem 1.5rem;
  transition:transform var(--transicion), box-shadow var(--transicion), border-color var(--transicion);
}
.servicio:hover{
  transform:translateY(-4px);
  border-color:rgba(18,119,107,.4);
  box-shadow:0 14px 34px rgba(16,24,32,.09);
}
.servicio__icono{
  display:grid; place-items:center;
  width:44px; height:44px;
  border-radius:11px;
  background:rgba(18,119,107,.1);
  color:var(--jade);
  margin-bottom:1.1rem;
}
.servicio__icono svg{ width:22px; }
.servicio h3{
  font-family:var(--display);
  font-weight:700;
  font-size:1.13rem;
  letter-spacing:-.015em;
  margin:0 0 .5rem;
}
.servicio p{ margin:0; font-size:.95rem; color:var(--humo); }

/* ---------- método (sí es secuencia: la numeración informa) ---------- */
.pasos{
  list-style:none;
  margin:0; padding:0;
  display:grid;
  grid-template-columns:repeat(auto-fit, minmax(220px,1fr));
  gap:0;
  border-top:2px solid var(--tinta);
}
.paso{
  padding:1.7rem 1.4rem 1.9rem 0;
  border-right:1px solid var(--linea);
}
.paso:last-child{ border-right:0; }
.paso__num{
  display:block;
  font-family:var(--mono);
  font-size:.78rem;
  letter-spacing:.14em;
  color:var(--ambar-hondo);
  margin-bottom:.9rem;
}
.paso h3{
  font-family:var(--display);
  font-weight:700;
  font-size:1.16rem;
  letter-spacing:-.015em;
  margin:0 0 .5rem;
}
.paso p{ margin:0; font-size:.94rem; color:var(--humo); max-width:32ch; }

/* ---------- equipo ---------- */
.equipo{
  display:grid;
  grid-template-columns:repeat(auto-fit, minmax(270px,1fr));
  gap:1.3rem;
}
.persona{
  background:var(--tinta-alta);
  border:1px solid var(--linea-clara);
  border-radius:var(--radio);
  padding:1.9rem 1.6rem;
  transition:transform var(--transicion), border-color var(--transicion), background var(--transicion);
}
.persona.esta-resaltada,
.persona:hover{
  transform:translateY(-4px);
  border-color:rgba(240,160,44,.5);
  background:#1A2530;
}

.persona__avatar{ position:relative; width:88px; margin-bottom:1.2rem; }
.persona__avatar svg{ width:88px; height:88px; border-radius:50%; }
.persona__insignia{
  position:absolute; right:-8px; bottom:-4px;
  font-family:var(--mono);
  font-size:.62rem;
  letter-spacing:.1em;
  background:var(--tinta);
  border:1px solid var(--linea-clara);
  color:var(--humo-claro);
  padding:.2rem .45rem;
  border-radius:6px;
}

.persona__rol{
  font-family:var(--mono);
  font-size:.7rem;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:var(--ambar);
  margin:0 0 .4rem;
}
.persona__nombre{
  font-family:var(--display);
  font-weight:700;
  font-size:1.2rem;
  letter-spacing:-.018em;
  line-height:1.25;
  margin:0 0 .8rem;
  color:var(--blanco);
}
.persona__bio{
  margin:0 0 1.3rem;
  font-size:.94rem;
  color:var(--humo-claro);
}

.persona__datos{
  list-style:none; margin:0; padding:1.1rem 0 0;
  border-top:1px solid var(--linea-clara);
  display:grid; gap:.5rem;
}
.persona__datos li{
  display:flex; align-items:center; gap:.6rem; flex-wrap:wrap;
}
.persona__datos a{
  font-family:var(--mono);
  font-size:.82rem;
  color:var(--blanco);
  text-decoration:none;
  border-bottom:1px solid rgba(240,160,44,.45);
  word-break:break-all;
  transition:color var(--transicion);
}
.persona__datos a:hover{ color:var(--ambar); }

.copiar{
  font-family:var(--mono);
  font-size:.62rem;
  letter-spacing:.1em;
  text-transform:uppercase;
  background:transparent;
  color:var(--humo-claro);
  border:1px solid var(--linea-clara);
  border-radius:6px;
  padding:.16rem .45rem;
  cursor:pointer;
  transition:color var(--transicion), border-color var(--transicion);
}
.copiar:hover{ color:var(--ambar); border-color:rgba(240,160,44,.5); }

/* ---------- clientes ---------- */
.clientes{
  display:grid;
  grid-template-columns:repeat(auto-fit, minmax(280px,1fr));
  gap:1.3rem;
}
.cliente{
  position:relative;
  background:var(--blanco);
  border:1px solid var(--linea);
  border-left:4px solid var(--jade);
  border-radius:var(--radio);
  padding:1.9rem 1.7rem;
}
.cliente--industria{ border-left-color:var(--ambar); }
.cliente__sello{
  display:grid; place-items:center;
  width:42px; height:42px;
  border-radius:10px;
  background:rgba(18,119,107,.1);
  color:var(--jade);
  margin-bottom:1.1rem;
}
.cliente--industria .cliente__sello{
  background:rgba(240,160,44,.14);
  color:var(--ambar-hondo);
}
.cliente__sello svg{ width:21px; }
.cliente__sector{
  font-family:var(--mono);
  font-size:.68rem;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:var(--humo);
  margin:0 0 .35rem;
}
.cliente__nombre{
  font-family:var(--display);
  font-weight:700;
  font-size:1.5rem;
  letter-spacing:-.02em;
  margin:0 0 .6rem;
}
.cliente__nota{ margin:0; font-size:.95rem; color:var(--humo); }

.clientes__pie{
  margin:2.2rem 0 0;
  font-size:.98rem;
  color:var(--humo);
}
.clientes__pie a{ color:var(--jade); font-weight:600; }

/* ---------- contacto ---------- */
.contacto{
  display:grid;
  grid-template-columns:.9fr 1.1fr;
  gap:clamp(2rem,5vw,4rem);
  align-items:start;
}
.contacto .titulo{ color:var(--blanco); }
.contacto .bajada{ color:var(--humo-claro); }

.contacto__directo{
  list-style:none; margin:2.4rem 0 0; padding:0;
  display:grid; gap:1.1rem;
}
.contacto__directo li{ display:grid; gap:.2rem; }
.contacto__directo a{
  font-family:var(--mono);
  font-size:.92rem;
  color:var(--blanco);
  text-decoration:none;
  border-bottom:1px solid rgba(240,160,44,.45);
  justify-self:start;
}
.contacto__directo a:hover{ color:var(--ambar); }
.contacto__directo li > span:not(.etiqueta){
  font-size:.93rem;
  color:var(--humo-claro);
}

.formulario{
  background:var(--tinta-alta);
  border:1px solid var(--linea-clara);
  border-radius:var(--radio);
  padding:clamp(1.5rem,3vw,2.2rem);
  display:grid; gap:1.1rem;
}
.campo{ display:grid; gap:.4rem; }
.campo--doble{ grid-template-columns:1fr 1fr; gap:1rem; }
.campo--doble > div{ display:grid; gap:.4rem; }

.formulario label{
  font-family:var(--mono);
  font-size:.68rem;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--humo-claro);
}
.formulario input,
.formulario select,
.formulario textarea{
  width:100%;
  font-family:var(--texto);
  font-size:.97rem;
  color:var(--blanco);
  background:rgba(255,255,255,.04);
  border:1px solid var(--linea-clara);
  border-radius:9px;
  padding:.75rem .9rem;
  transition:border-color var(--transicion), background var(--transicion);
}
.formulario textarea{ resize:vertical; }
.formulario select option{ background:var(--tinta); color:var(--blanco); }
.formulario input:focus,
.formulario select:focus,
.formulario textarea:focus{
  border-color:var(--ambar);
  background:rgba(255,255,255,.07);
  outline:none;
}
.formulario input.no-valido,
.formulario textarea.no-valido{ border-color:#E2624C; }

.error{
  font-size:.78rem;
  color:#F09080;
  min-height:1em;
}
.formulario__aviso{
  margin:0;
  font-size:.88rem;
  color:var(--jade-claro);
  min-height:1.2em;
}

/* ---------- pie ---------- */
.pie{
  background:var(--tinta);
  border-top:1px solid var(--linea-clara);
  color:var(--humo-claro);
  padding-block:2.4rem;
}
.pie__interior{
  display:flex; flex-wrap:wrap; align-items:center; gap:1rem 2rem;
  justify-content:space-between;
}
.pie__nota,.pie__legal{ margin:0; font-size:.85rem; }
.pie__legal{ font-family:var(--mono); font-size:.75rem; }

/* ---------- revelado al hacer scroll ---------- */
[data-revelar] > *{
  opacity:0;
  transform:translateY(18px);
  transition:opacity .6s ease, transform .6s cubic-bezier(.2,.7,.3,1);
}
[data-revelar].esta-visible > *{
  opacity:1;
  transform:none;
}
[data-revelar].esta-visible > *:nth-child(2){ transition-delay:.09s; }
[data-revelar].esta-visible > *:nth-child(3){ transition-delay:.18s; }
[data-revelar].esta-visible > *:nth-child(4){ transition-delay:.27s; }

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 960px){
  .hero__grid{ grid-template-columns:1fr; }
  .sistema{ max-width:330px; }
  .contacto{ grid-template-columns:1fr; }
  .paso{ border-right:0; border-bottom:1px solid var(--linea); }
  .paso:last-child{ border-bottom:0; }
}

@media (max-width: 760px){
  body{ font-size:16px; }
  .menu{ display:flex; }
  .nav{
    position:absolute;
    left:0; right:0; top:100%;
    flex-direction:column;
    align-items:stretch;
    gap:0;
    background:var(--tinta);
    border-bottom:1px solid var(--linea-clara);
    padding:.5rem 1.2rem 1.4rem;
    display:none;
  }
  .nav.esta-abierto{ display:flex; }
  .nav a{
    padding:.85rem 0;
    border-bottom:1px solid var(--linea-clara);
    font-size:1rem;
  }
  .nav .boton{
    margin-top:1rem;
    border-bottom:0;
    justify-content:center;
  }
  .campo--doble{ grid-template-columns:1fr; }
  .sistema__pie{ width:52%; font-size:.76rem; }
  .nodo__etiqueta b{ font-size:.85rem; }
}

@media (max-width: 420px){
  .sistema{ max-width:280px; }
  .sistema__pie{ display:none; }
}

/* ---------- movimiento reducido ---------- */
@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior:auto; }
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
  }
  .sistema__lineas path{ stroke-dashoffset:0; }
  .nodo{ opacity:1; }
  [data-revelar] > *{ opacity:1; transform:none; }
}