/* ============================================================
   Gerol Systems — sitio de muestra (Omnia Technologies)
   Tokens: Grafito / Acero / Tinta / Llama / Rojo / Línea
   Tipos: Archivo (ancho, display) · IBM Plex Sans · IBM Plex Mono
   ============================================================ */
:root {
  --grafito: #111317;
  --grafito-2: #1a1d23;
  --acero: #e8ebef;
  --acero-2: #f4f6f8;
  --tinta: #14171c;
  --tinta-suave: #4a515c;
  --linea: #c9ced5;
  --llama: #f28c18;
  --rojo: #e2261c;
  --flame: linear-gradient(90deg, var(--llama), var(--rojo));
  --display: "Archivo", "Helvetica Neue", Arial, sans-serif;
  --body: "IBM Plex Sans", "Helvetica Neue", Arial, sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, Menlo, monospace;
  --wrap: min(1240px, 100% - 2 * clamp(16px, 4vw, 48px));
  --radius: 14px;
  --ease: cubic-bezier(.2, .7, .1, 1);
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--acero);
  color: var(--tinta);
  font: 400 17px/1.6 var(--body);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img, video { display: block; max-width: 100%; }
a { color: inherit; }
:focus-visible { outline: 3px solid var(--llama); outline-offset: 3px; border-radius: 4px; }
.wrap { width: var(--wrap); margin-inline: auto; }
.mono { font-family: var(--mono); letter-spacing: .02em; }

.eyebrow {
  display: inline-flex; align-items: center; gap: .6em;
  font-size: 12.5px; text-transform: uppercase; letter-spacing: .16em;
  color: var(--tinta-suave); margin: 0 0 18px;
}
.eyebrow .dot, .eyebrow::before {
  width: 8px; height: 8px; border-radius: 50%; background: var(--flame);
}
.eyebrow::before { content: ""; }
.eyebrow .dot { display: none; }

.sec-title {
  font-family: var(--display);
  font-stretch: 112%;
  font-weight: 800;
  font-size: clamp(32px, 4.4vw, 60px);
  line-height: 1.02;
  letter-spacing: -.02em;
  margin: 0;
  max-width: 18ch;
  text-wrap: balance;
}

/* ---------- Botones ---------- */
.btn {
  --h: 54px;
  display: inline-flex; align-items: center; justify-content: center; gap: .5em;
  height: var(--h); padding: 0 26px; border-radius: 999px;
  font: 600 15.5px/1 var(--body); text-decoration: none; letter-spacing: .01em;
  border: 0; cursor: pointer; transition: transform .25s var(--ease), box-shadow .25s var(--ease), background .25s;
}
.btn--flame { background: var(--flame); color: #fff; box-shadow: 0 10px 30px -10px rgba(226, 38, 28, .6); }
.btn--flame:hover { transform: translateY(-2px); box-shadow: 0 16px 36px -12px rgba(226, 38, 28, .7); }
.btn--ghost { color: #fff; background: rgba(255, 255, 255, .08); box-shadow: inset 0 0 0 1.5px rgba(255, 255, 255, .45); backdrop-filter: blur(6px); }
.btn--ghost:hover { background: rgba(255, 255, 255, .16); }
.btn--block { width: 100%; }

/* ---------- Progreso tipo banda ---------- */
.belt-progress {
  position: fixed; inset: 0 0 auto 0; height: 4px; z-index: 60;
  background: repeating-linear-gradient(90deg, rgba(255,255,255,.08) 0 10px, transparent 10px 14px);
}
.belt-progress__fill { display: block; height: 100%; width: 100%; transform-origin: 0 50%; transform: scaleX(0); background: var(--flame); }

/* ---------- Navegación ---------- */
.nav {
  position: fixed; top: 4px; left: 0; right: 0; z-index: 50;
  display: flex; align-items: center; gap: 28px;
  padding: 16px clamp(16px, 4vw, 48px);
  transition: background .35s, box-shadow .35s, padding .35s;
}
.nav.is-solid { background: rgba(244, 246, 248, .86); backdrop-filter: blur(14px) saturate(1.2); box-shadow: 0 1px 0 var(--linea); padding-block: 10px; }
.nav__logo { position: relative; display: block; width: 132px; height: 44px; }
.nav__logo-img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: contain; object-position: left center; transition: opacity .3s; }
.nav__logo-img--dark { opacity: 0; }
.nav.is-solid .nav__logo-img--light { opacity: 0; }
.nav.is-solid .nav__logo-img--dark { opacity: 1; }
.nav__links { display: flex; gap: 28px; margin-left: auto; }
.nav__links a { color: #fff; text-decoration: none; font-weight: 500; font-size: 15px; opacity: .85; transition: opacity .2s, color .3s; }
.nav__links a:hover { opacity: 1; }
.nav.is-solid .nav__links a { color: var(--tinta); }
.nav__cta { --h: 44px; padding: 0 20px; font-size: 14.5px; }
.nav__burger { display: none; }

.mobile-menu {
  position: fixed; inset: 0; z-index: 45; background: var(--grafito);
  display: flex; flex-direction: column; justify-content: center; gap: 22px; padding: 0 28px;
}
.mobile-menu[hidden] { display: none; }
.mobile-menu a:not(.btn) { color: #fff; text-decoration: none; font: 800 34px/1.1 var(--display); font-stretch: 112%; }
.mobile-menu .btn { margin-top: 12px; }

/* ---------- HERO ---------- */
.hero {
  position: relative; min-height: 100svh; color: #fff; overflow: hidden;
  display: grid; align-items: end; background: var(--grafito);
}
.hero__media { position: absolute; inset: 0; }
.hero__video { width: 100%; height: 100%; object-fit: cover; transform: scale(1.08); }
.hero__shade {
  position: absolute; inset: 0;
  background:
    linear-gradient(90deg, rgba(17,19,23,.92) 0%, rgba(17,19,23,.7) 38%, rgba(17,19,23,.15) 70%, rgba(17,19,23,.35) 100%),
    linear-gradient(0deg, rgba(17,19,23,.85) 0%, rgba(17,19,23,0) 40%);
}
.hero__inner { position: relative; padding: 160px 0 clamp(170px, 22vh, 220px); }
.hero .eyebrow { color: rgba(255,255,255,.75); }
.hero__title {
  font-family: var(--display); font-weight: 900; font-stretch: 125%;
  font-size: clamp(40px, 7.4vw, 112px); line-height: .95; letter-spacing: -.03em;
  margin: 0 0 26px; max-width: 13ch;
}
.hero__title .line { display: block; overflow: hidden; padding-bottom: .04em; }
.hero__title .line > span { display: inline-block; }
.hero__title .line--flame > span {
  background: var(--flame); -webkit-background-clip: text; background-clip: text; color: transparent;
  font-size: .56em; font-stretch: 100%; letter-spacing: -.01em; padding-top: .2em;
}
.hero__lead { max-width: 52ch; font-size: clamp(16px, 1.3vw, 19px); color: rgba(255,255,255,.82); margin: 0 0 34px; }
.hero__actions { display: flex; flex-wrap: wrap; gap: 14px; }
.hero__scroll {
  position: absolute; left: 50%; bottom: 28px; transform: translateX(-50%);
  color: rgba(255,255,255,.6); text-decoration: none; font-size: 11px; text-transform: uppercase; letter-spacing: .2em;
  display: flex; flex-direction: column; align-items: center; gap: 8px;
}
.hero__scroll span { width: 1.5px; height: 34px; background: linear-gradient(rgba(255,255,255,.7), transparent); animation: drip 1.8s var(--ease) infinite; transform-origin: top; }
@keyframes drip { 0% { transform: scaleY(0); } 50% { transform: scaleY(1); } 100% { transform: scaleY(1); opacity: 0; } }

/* Placa de especificaciones */
.plate {
  position: absolute; right: clamp(16px, 4vw, 48px); bottom: clamp(70px, 10vh, 110px);
  width: min(380px, 40vw); padding: 22px 24px 18px;
  background: linear-gradient(145deg, #2a2e35, #1b1e23 55%, #24272d);
  border-radius: 10px;
  box-shadow: inset 0 1px 0 rgba(255,255,255,.12), inset 0 -1px 0 rgba(0,0,0,.5), 0 24px 60px -20px rgba(0,0,0,.7);
}
.plate::after {
  content: ""; position: absolute; inset: 0; border-radius: inherit; pointer-events: none;
  background: repeating-linear-gradient(90deg, rgba(255,255,255,.025) 0 1px, transparent 1px 3px);
}
.plate__rivet { position: absolute; width: 9px; height: 9px; border-radius: 50%; background: radial-gradient(circle at 35% 35%, #9aa1ab, #3a3f47 70%); }
.plate__rivet--tl { top: 9px; left: 9px; } .plate__rivet--tr { top: 9px; right: 9px; }
.plate__rivet--bl { bottom: 9px; left: 9px; } .plate__rivet--br { bottom: 9px; right: 9px; }
.plate__brand { margin: 0 0 14px; font-size: 11px; letter-spacing: .24em; color: var(--llama); text-align: center; }
.plate__grid { display: grid; grid-template-columns: 1fr 1fr; gap: 0; margin: 0; }
.plate__grid > div { padding: 10px 6px; border-top: 1px solid rgba(255,255,255,.1); }
.plate__grid > div:nth-child(odd) { border-right: 1px solid rgba(255,255,255,.1); }
.plate__grid dt { font-size: 10.5px; text-transform: uppercase; letter-spacing: .14em; color: rgba(255,255,255,.5); }
.plate__grid dd { margin: 2px 0 0; font: 700 17px/1.2 var(--display); font-stretch: 110%; }

/* ---------- Banda de marcas ---------- */
.belt { background: var(--grafito); color: #fff; padding: 26px 0 30px; overflow: hidden; position: relative; }
.belt::before, .belt::after {
  content: ""; position: absolute; left: 0; right: 0; height: 6px;
  background: repeating-linear-gradient(90deg, #2c3038 0 18px, #1d2026 18px 22px);
}
.belt::before { top: 0; } .belt::after { bottom: 0; }
.belt__track { overflow: hidden; }
.belt__row { display: flex; align-items: center; gap: 34px; width: max-content; animation: belt 34s linear infinite; }
.belt__row span { font: 800 clamp(22px, 2.6vw, 34px)/1 var(--display); font-stretch: 118%; white-space: nowrap; color: rgba(255,255,255,.88); }
.belt__row i { width: 10px; height: 10px; border-radius: 50%; background: var(--flame); flex: none; }
@keyframes belt { to { transform: translateX(-50%); } }
.belt__caption { text-align: center; color: rgba(255,255,255,.5); font-size: 12px; margin: 16px 0 0; letter-spacing: .12em; text-transform: uppercase; }

/* ---------- Servicios ---------- */
.services { padding: clamp(90px, 12vw, 160px) 0 clamp(70px, 9vw, 120px); }
.sec-head { margin-bottom: clamp(40px, 6vw, 72px); }
.svc-list { display: grid; grid-template-columns: repeat(3, 1fr); gap: clamp(18px, 2vw, 28px); }
.svc {
  background: var(--acero-2); border-radius: var(--radius); overflow: hidden;
  box-shadow: 0 1px 0 var(--linea), 0 30px 60px -40px rgba(20, 23, 28, .35);
  display: flex; flex-direction: column; transition: transform .45s var(--ease), box-shadow .45s var(--ease);
}
.svc:hover { transform: translateY(-6px); box-shadow: 0 1px 0 var(--linea), 0 40px 70px -40px rgba(20, 23, 28, .5); }
.svc__img { margin: 0; aspect-ratio: 4 / 3; overflow: hidden; }
.svc__img img { width: 100%; height: 100%; object-fit: cover; transition: transform .9s var(--ease); }
.svc:hover .svc__img img { transform: scale(1.06); }
.svc__body { padding: 24px 24px 26px; display: flex; flex-direction: column; gap: 10px; flex: 1; }
.svc__body h3 { margin: 0; font: 800 22px/1.15 var(--display); font-stretch: 108%; letter-spacing: -.01em; }
.svc__body p { margin: 0; color: var(--tinta-suave); font-size: 15.5px; }
.tags { list-style: none; display: flex; flex-wrap: wrap; gap: 6px; margin: auto 0 0; padding: 10px 0 0; }
.tags li { font-size: 11.5px; padding: 5px 9px; border-radius: 999px; box-shadow: inset 0 0 0 1px var(--linea); color: var(--tinta-suave); }

/* ---------- Proceso ---------- */
.process { background: var(--grafito); color: #fff; }
.process__pin { min-height: 100vh; display: flex; align-items: center; padding: 110px 0; }
.process .eyebrow { color: rgba(255,255,255,.6); }
.process__head { margin-bottom: 56px; }
.process__meter { margin-top: 36px; height: 3px; background: rgba(255,255,255,.12); border-radius: 3px; overflow: hidden; }
.process__meter-fill { display: block; height: 100%; width: 100%; background: var(--flame); transform-origin: 0 50%; transform: scaleX(0); }
.steps { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.step { padding: 26px 22px 28px; border-radius: var(--radius); background: var(--grafito-2); box-shadow: inset 0 0 0 1px rgba(255,255,255,.06); }
.step__n { display: inline-block; font-size: 13px; color: var(--llama); margin-bottom: 18px; }
.step h3 { margin: 0 0 10px; font: 800 21px/1.15 var(--display); font-stretch: 110%; }
.step p { margin: 0; color: rgba(255,255,255,.68); font-size: 15px; }

/* ---------- Proyectos (galería horizontal sobre banda) ---------- */
.projects { background: var(--acero); overflow: hidden; }
.projects__pin { min-height: 100vh; display: flex; flex-direction: column; justify-content: center; padding: 100px 0 60px; }
.projects__head { margin-bottom: 44px; }
.projects__rail { overflow: visible; }
.projects__track { display: flex; gap: 22px; padding-inline: max(16px, calc((100vw - 1240px) / 2)); width: max-content; will-change: transform; }
.card { margin: 0; width: clamp(240px, 26vw, 340px); flex: none; }
.card--wide { width: clamp(320px, 38vw, 520px); }
.card img { width: 100%; height: clamp(260px, 42vh, 420px); object-fit: cover; border-radius: var(--radius); box-shadow: 0 30px 50px -36px rgba(20,23,28,.6); }
.card figcaption { margin-top: 14px; font-size: 15px; color: var(--tinta-suave); line-height: 1.4; }
.card figcaption .mono { display: block; font-size: 11px; text-transform: uppercase; letter-spacing: .16em; color: var(--rojo); margin-bottom: 4px; }
.rollers {
  margin-top: 36px; height: 22px;
  background:
    radial-gradient(circle at 11px 11px, #8e959f 0 5px, #5b616b 5.5px 9px, transparent 9.5px) 0 0 / 34px 22px repeat-x,
    linear-gradient(#cfd4da, #cfd4da) 0 50% / 100% 2px no-repeat;
  opacity: .9;
}

/* ---------- Industrias ---------- */
.industries { padding: clamp(90px, 12vw, 150px) 0; }
.industries__grid { display: grid; grid-template-columns: 1fr 1.1fr; gap: clamp(40px, 6vw, 90px); align-items: start; }
.ind-list { list-style: none; margin: 0; padding: 0; }
.ind-list li { padding: 26px 0; border-top: 1px solid var(--linea); display: grid; grid-template-columns: 1fr 1.4fr; gap: 20px; align-items: baseline; }
.ind-list li:last-child { border-bottom: 1px solid var(--linea); }
.ind-list h3 { margin: 0; font: 800 24px/1.1 var(--display); font-stretch: 112%; }
.ind-list p { margin: 0; color: var(--tinta-suave); }

/* ---------- Testimonios ---------- */
.quotes { background: var(--acero-2); padding: clamp(80px, 10vw, 130px) 0; }
.quotes__grid { display: grid; grid-template-columns: 1fr 1fr; gap: 26px; margin-top: 20px; }
.quote { margin: 0; padding: 34px 32px; border-radius: var(--radius); background: #fff; box-shadow: 0 1px 0 var(--linea); position: relative; }
.quote::before { content: ""; position: absolute; left: 32px; top: 0; width: 56px; height: 4px; background: var(--flame); border-radius: 0 0 4px 4px; }
.quote p { margin: 0 0 20px; font: 600 clamp(19px, 1.7vw, 24px)/1.35 var(--display); font-stretch: 100%; }
.quote footer { font-size: 12px; color: var(--tinta-suave); letter-spacing: .06em; text-transform: uppercase; }

/* ---------- Formulario ---------- */
.quote-form { background: var(--grafito); color: #fff; padding: clamp(90px, 11vw, 150px) 0; }
.quote-form .eyebrow { color: rgba(255,255,255,.6); }
.quote-form__grid { display: grid; grid-template-columns: .9fr 1.1fr; gap: clamp(40px, 6vw, 90px); align-items: start; }
.quote-form__lead { color: rgba(255,255,255,.72); max-width: 44ch; margin: 22px 0 32px; }
.contact { list-style: none; margin: 0; padding: 0; font-size: 14px; }
.contact li { display: grid; grid-template-columns: 110px 1fr; padding: 14px 0; border-top: 1px solid rgba(255,255,255,.1); color: rgba(255,255,255,.85); }
.contact li span { color: rgba(255,255,255,.45); text-transform: uppercase; font-size: 11px; letter-spacing: .14em; padding-top: 2px; }
.contact a { color: #fff; text-decoration: none; border-bottom: 1px solid var(--llama); justify-self: start; }

.form { background: var(--grafito-2); border-radius: 18px; padding: clamp(22px, 3vw, 36px); box-shadow: inset 0 0 0 1px rgba(255,255,255,.07); display: grid; gap: 18px; }
.form__row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.field { display: grid; gap: 8px; border: 0; padding: 0; margin: 0; min-width: 0; }
.field > span, .field legend { font-size: 13px; color: rgba(255,255,255,.6); padding: 0; }
.field input, .field textarea {
  width: 100%; font: 400 16px/1.4 var(--body); color: #fff;
  background: rgba(255,255,255,.04); border: 1px solid rgba(255,255,255,.14); border-radius: 10px; padding: 13px 14px;
  transition: border-color .2s, background .2s;
}
.field input::placeholder, .field textarea::placeholder { color: rgba(255,255,255,.3); }
.field input:focus, .field textarea:focus { outline: none; border-color: var(--llama); background: rgba(255,255,255,.07); }
.field textarea { resize: vertical; min-height: 110px; }
.field.is-invalid input { border-color: var(--rojo); }
.chips { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 8px; }
.chips label { position: relative; cursor: pointer; }
.chips input { position: absolute; opacity: 0; pointer-events: none; }
.chips span { display: inline-block; padding: 9px 14px; border-radius: 999px; font-size: 14px; box-shadow: inset 0 0 0 1px rgba(255,255,255,.18); color: rgba(255,255,255,.8); transition: all .2s; }
.chips input:checked + span { background: var(--flame); color: #fff; box-shadow: none; }
.chips input:focus-visible + span { outline: 3px solid var(--llama); outline-offset: 2px; }
.form__error { margin: 0; color: #ff8a80; font-size: 14px; }
.form__note { margin: 0; font-size: 11.5px; color: rgba(255,255,255,.45); text-align: center; letter-spacing: .04em; }

/* ---------- Footer ---------- */
.footer { background: #0b0c0f; color: rgba(255,255,255,.6); padding: 48px 0 90px; font-size: 14px; }
.footer__grid { display: grid; grid-template-columns: auto 1fr auto; gap: 28px; align-items: center; }
.footer__logo { width: 120px; }
.footer p { margin: 0; }
.footer__demo { font-size: 11px; letter-spacing: .1em; text-transform: uppercase; color: rgba(255,255,255,.35); }

/* ---------- WhatsApp flotante ---------- */
.wa-float {
  position: fixed; right: 20px; bottom: 20px; z-index: 40; width: 60px; height: 60px; border-radius: 50%;
  background: #25d366; display: grid; place-items: center; box-shadow: 0 14px 30px -10px rgba(0,0,0,.45);
  transition: transform .25s var(--ease);
}
.wa-float::before { content: ""; position: absolute; inset: 0; border-radius: 50%; background: #25d366; z-index: -1; animation: ping 2.6s var(--ease) infinite; }
.wa-float:hover { transform: scale(1.07); }
@keyframes ping { 0% { transform: scale(1); opacity: .6; } 80%, 100% { transform: scale(1.6); opacity: 0; } }

/* ---------- Estado inicial de animaciones (solo con JS) ---------- */
.js .reveal { opacity: 0; transform: translateY(36px); }

/* ---------- Responsive ---------- */
@media (max-width: 1080px) {
  .svc-list { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .plate { position: relative; right: auto; bottom: auto; width: auto; margin: -120px auto 60px; width: var(--wrap); }
  .hero__inner { padding-bottom: 160px; }
}
@media (max-width: 820px) {
  .nav__links, .nav__cta { display: none; }
  .nav__burger {
    display: grid; gap: 6px; margin-left: auto; width: 44px; height: 44px; place-content: center;
    background: rgba(255,255,255,.1); border: 0; border-radius: 12px; cursor: pointer; position: relative; z-index: 60;
  }
  .nav__burger span { display: block; width: 20px; height: 2px; background: #fff; transition: transform .3s; }
  .nav.is-solid .nav__burger { background: rgba(20,23,28,.08); }
  .nav.is-solid .nav__burger span { background: var(--tinta); }
  .nav__burger[aria-expanded="true"] span { background: #fff; }
  .nav__burger[aria-expanded="true"] span:first-child { transform: translateY(4px) rotate(45deg); }
  .nav__burger[aria-expanded="true"] span:last-child { transform: translateY(-4px) rotate(-45deg); }
  .industries__grid, .quote-form__grid, .quotes__grid { grid-template-columns: 1fr; }
  .ind-list li { grid-template-columns: 1fr; gap: 6px; }
  .footer__grid { grid-template-columns: 1fr; }
  .hero__title { font-stretch: 112%; }
}
@media (max-width: 600px) {
  .svc-list, .steps, .form__row { grid-template-columns: 1fr; }
  .hero__inner { padding: 130px 0 140px; }
  .hero__actions .btn { width: 100%; }
  .plate { margin-top: -100px; }
  .plate__grid dd { font-size: 15px; }
  .card { width: 72vw; } .card--wide { width: 84vw; }
  .card img { height: 52vh; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .js .reveal { opacity: 1; transform: none; }
  .hero__video { display: none; }
  .hero__media { background: url(../img/hero.webp) center / cover; }
}