/* =========================================================
   Tornería Álvarez — Design tokens
   ========================================================= */
:root {
  /* Color */
  --c-bg: #0b0e12;
  --c-bg-2: #0f1318;
  --c-surface: #151a21;
  --c-surface-2: #1b222b;
  --c-line: rgba(201, 208, 214, 0.12);
  --c-line-strong: rgba(201, 208, 214, 0.24);
  --c-text: #e8ecf0;
  --c-muted: #9aa6b2;
  --c-steel: #8a949e;
  --c-titanium: #c9d0d6;
  --c-navy: #1d3d63;
  --c-navy-2: #2d5f93;
  --c-accent: #f2a900;
  --c-accent-2: #ffc23d;
  --c-on-accent: #121212;
  --c-danger: #ff7a6b;
  --c-ok: #6fd3a2;

  /* Type */
  --f-display: "Barlow Condensed", "Arial Narrow", system-ui, sans-serif;
  --f-body: "IBM Plex Sans", system-ui, -apple-system, "Segoe UI", sans-serif;
  --f-mono: "IBM Plex Mono", ui-monospace, "Cascadia Mono", monospace;
  --fs-xs: 0.78rem;
  --fs-sm: 0.9rem;
  --fs-md: 1.0625rem;
  --fs-lg: clamp(1.15rem, 1rem + 0.5vw, 1.35rem);
  --fs-h3: clamp(1.35rem, 1.15rem + 0.6vw, 1.6rem);
  --fs-h2: clamp(2.1rem, 1.4rem + 2.8vw, 3.75rem);
  --fs-hero: clamp(3.1rem, 1.6rem + 7vw, 7.6rem);

  /* Space */
  --s-1: 0.25rem;
  --s-2: 0.5rem;
  --s-3: 0.75rem;
  --s-4: 1rem;
  --s-5: 1.5rem;
  --s-6: 2rem;
  --s-7: 3rem;
  --s-8: 4.5rem;
  --s-9: clamp(4.5rem, 3rem + 6vw, 8.5rem);
  --gutter: clamp(1rem, 0.6rem + 2vw, 2.5rem);
  --maxw: 1240px;

  /* Shape & motion */
  --r-sm: 4px;
  --r-md: 8px;
  --r-lg: 14px;
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
  --nav-h: 68px;
}

/* =========================================================
   Base
   ========================================================= */
*, *::before, *::after { box-sizing: border-box; }
html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--nav-h) + 8px);
  background: var(--c-bg);
}
body {
  margin: 0;
  background: var(--c-bg);
  color: var(--c-text);
  font: 400 var(--fs-md)/1.65 var(--f-body);
  overflow-x: clip;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; }
button, input, select, textarea { font: inherit; color: inherit; }
h1, h2, h3, p, ul, ol, dl, dd, figure { margin: 0; }
ul, ol { padding: 0; list-style: none; }
::selection { background: var(--c-accent); color: var(--c-on-accent); }
:focus-visible { outline: 2px solid var(--c-accent); outline-offset: 3px; border-radius: 2px; }

.container { width: 100%; max-width: var(--maxw); margin-inline: auto; padding-inline: var(--gutter); }

.skip-link {
  position: absolute; left: 1rem; top: -100px; z-index: 100;
  background: var(--c-accent); color: var(--c-on-accent);
  padding: 0.6rem 1rem; border-radius: var(--r-sm); font-weight: 600; text-decoration: none;
}
.skip-link:focus { top: 1rem; }

.icon { width: 1.15em; height: 1.15em; flex: none; }

/* =========================================================
   Buttons
   ========================================================= */
.btn {
  --btn-bg: transparent;
  display: inline-flex; align-items: center; justify-content: center; gap: 0.55rem;
  min-height: 48px; padding: 0.7rem 1.4rem;
  border: 1px solid transparent; border-radius: var(--r-sm);
  background: var(--btn-bg);
  font: 600 0.95rem/1.1 var(--f-body); letter-spacing: 0.02em;
  text-decoration: none; cursor: pointer;
  transition: transform 0.25s var(--ease-out), background-color 0.25s, border-color 0.25s, color 0.25s, box-shadow 0.25s;
  -webkit-tap-highlight-color: transparent;
}
.btn:active { transform: translateY(1px) scale(0.98); }
.btn--accent { --btn-bg: var(--c-accent); color: var(--c-on-accent); box-shadow: 0 8px 24px -10px rgba(242, 169, 0, 0.55); }
.btn--ghost { border-color: var(--c-line-strong); color: var(--c-text); background: rgba(255,255,255,0.02); backdrop-filter: blur(6px); }
.btn--sm { min-height: 40px; padding: 0.5rem 1rem; font-size: 0.875rem; }
@media (hover: hover) {
  .btn--accent:hover { --btn-bg: var(--c-accent-2); transform: translateY(-2px); }
  .btn--ghost:hover { border-color: var(--c-titanium); background: rgba(255,255,255,0.06); transform: translateY(-2px); }
}
.btn[disabled] { opacity: 0.6; cursor: progress; }

/* =========================================================
   Nav
   ========================================================= */
.nav {
  position: fixed; inset: 0 0 auto 0; z-index: 50;
  height: var(--nav-h);
  transition: background-color 0.35s, border-color 0.35s, backdrop-filter 0.35s;
  border-bottom: 1px solid transparent;
}
.nav.is-scrolled, .nav.is-open {
  background: rgba(11, 14, 18, 0.82);
  backdrop-filter: blur(14px) saturate(140%);
  -webkit-backdrop-filter: blur(14px) saturate(140%);
  border-bottom-color: var(--c-line);
}
.nav__inner { height: 100%; display: flex; align-items: center; justify-content: space-between; gap: var(--s-5); }
.brand { display: inline-flex; align-items: center; gap: 0.7rem; text-decoration: none; min-width: 0; }
.brand__mark { width: 38px; height: 38px; color: var(--c-titanium); flex: none; }
.brand__text { display: flex; flex-direction: column; line-height: 1.05; min-width: 0; }
.brand__name { font: 700 1.3rem/1 var(--f-display); text-transform: uppercase; letter-spacing: 0.04em; white-space: nowrap; }
.brand__since { font: 500 0.68rem/1.4 var(--f-mono); color: var(--c-accent); letter-spacing: 0.16em; text-transform: uppercase; }

.nav__menu { display: flex; align-items: center; gap: var(--s-5); }
.nav__menu ul { display: flex; gap: clamp(0.8rem, 1.6vw, 1.7rem); }
.nav__menu ul a {
  position: relative; text-decoration: none; font-size: 0.9rem; font-weight: 500; color: var(--c-muted);
  padding: 0.4rem 0; transition: color 0.2s;
}
.nav__menu ul a::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 2px; background: var(--c-accent);
  transform: scaleX(0); transform-origin: left; transition: transform 0.3s var(--ease-out);
}
.nav__menu ul a:hover, .nav__menu ul a.is-active { color: var(--c-text); }
.nav__menu ul a:hover::after, .nav__menu ul a.is-active::after { transform: scaleX(1); }

.nav__toggle {
  display: none; width: 44px; height: 44px; padding: 0; border: 1px solid var(--c-line-strong);
  border-radius: var(--r-sm); background: transparent; cursor: pointer; position: relative; flex: none;
}
.nav__toggle span {
  position: absolute; left: 12px; right: 12px; height: 2px; background: var(--c-text);
  transition: transform 0.3s var(--ease-out), opacity 0.2s;
}
.nav__toggle span:nth-child(1) { top: 15px; }
.nav__toggle span:nth-child(2) { top: 21px; }
.nav__toggle span:nth-child(3) { top: 27px; }
.nav.is-open .nav__toggle span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.nav.is-open .nav__toggle span:nth-child(2) { opacity: 0; }
.nav.is-open .nav__toggle span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

@media (max-width: 980px) {
  .nav__toggle { display: block; }
  .nav__menu {
    position: fixed; top: var(--nav-h); left: 0; right: 0;
    flex-direction: column; align-items: stretch; gap: var(--s-5);
    padding: var(--s-5) var(--gutter) var(--s-6);
    background: rgba(11, 14, 18, 0.97);
    border-bottom: 1px solid var(--c-line);
    max-height: calc(100dvh - var(--nav-h)); overflow-y: auto;
    opacity: 0; visibility: hidden; transform: translateY(-8px);
    transition: opacity 0.25s, transform 0.3s var(--ease-out), visibility 0s 0.3s;
  }
  .nav.is-open .nav__menu { opacity: 1; visibility: visible; transform: none; transition: opacity 0.25s, transform 0.3s var(--ease-out); }
  .nav__menu ul { flex-direction: column; gap: 0; }
  .nav__menu ul a { display: block; padding: 0.85rem 0; font-size: 1.1rem; border-bottom: 1px solid var(--c-line); }
  .nav__menu ul a::after { display: none; }
  .nav__menu .btn { width: 100%; }
}
@media (max-width: 380px) {
  .brand__name { font-size: 1.1rem; }
  .brand__mark { width: 32px; height: 32px; }
}

/* =========================================================
   Hero
   ========================================================= */
.hero { position: relative; height: 210vh; background: var(--c-bg); }
.hero__sticky {
  position: sticky; top: 0; height: 100vh; height: 100svh; min-height: 600px;
  overflow: hidden; display: flex; flex-direction: column; justify-content: center;
}
.hero__canvas { position: absolute; inset: 0; width: 100%; height: 100%; display: block; }
.hero__fallback {
  position: absolute; inset: 0; display: none; place-items: center; color: var(--c-steel);
  background: radial-gradient(ellipse at 70% 50%, rgba(45, 95, 147, 0.25), transparent 60%);
}
.hero__fallback svg { width: min(46vw, 420px); margin-left: auto; margin-right: 8vw; opacity: 0.5; }
.hero.no-webgl .hero__fallback { display: grid; }
.hero.no-webgl .hero__canvas, .hero.no-webgl .hero__hud { display: none; }

.hero__grid {
  position: absolute; inset: 0; pointer-events: none; opacity: 0.55;
  background-image:
    linear-gradient(rgba(201, 208, 214, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(201, 208, 214, 0.05) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse 80% 70% at 60% 50%, #000 30%, transparent 85%);
  -webkit-mask-image: radial-gradient(ellipse 80% 70% at 60% 50%, #000 30%, transparent 85%);
}
.hero__vignette {
  position: absolute; inset: 0; pointer-events: none;
  background:
    linear-gradient(90deg, rgba(11, 14, 18, 0.92) 0%, rgba(11, 14, 18, 0.55) 38%, transparent 62%),
    linear-gradient(0deg, var(--c-bg) 0%, transparent 22%);
}
.hero__content { position: relative; z-index: 2; padding-top: var(--nav-h); }
.hero__content > * { max-width: 640px; }

.eyebrow {
  display: inline-flex; align-items: center; gap: 0.6rem;
  font: 500 var(--fs-xs)/1.4 var(--f-mono); letter-spacing: 0.18em; text-transform: uppercase; color: var(--c-accent);
}
.eyebrow::before { content: ""; width: 28px; height: 1px; background: currentColor; }

.hero__title { margin-top: var(--s-4); font-family: var(--f-display); text-transform: uppercase; line-height: 0.88; }
.hero__title-main {
  display: block; font-size: var(--fs-hero); font-weight: 700; letter-spacing: 0.005em;
  background: linear-gradient(180deg, #ffffff 0%, #d7dde3 45%, #8d98a4 100%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero__title-sub {
  display: block; margin-top: 0.7rem; font-size: clamp(1.05rem, 0.8rem + 1vw, 1.55rem); font-weight: 500;
  letter-spacing: 0.14em; color: var(--c-titanium); line-height: 1.2;
}
.hero__tagline { margin-top: var(--s-5); font-size: var(--fs-lg); font-weight: 600; color: var(--c-text); }
.hero__lead { margin-top: var(--s-3); color: var(--c-muted); max-width: 560px !important; }
.hero__ctas { display: flex; flex-wrap: wrap; gap: var(--s-3); margin-top: var(--s-6); }

.hero__stats {
  position: relative; z-index: 2; margin-top: var(--s-7);
  display: grid; grid-template-columns: repeat(4, minmax(0, auto)); justify-content: start; gap: var(--s-6);
}
.hero__stats li { display: flex; flex-direction: column; gap: 0.2rem; padding-left: var(--s-4); border-left: 1px solid var(--c-line-strong); }
.stat__num { font: 700 clamp(1.6rem, 1.2rem + 1.2vw, 2.2rem)/1 var(--f-display); color: var(--c-text); white-space: nowrap; }
.stat__num small { font-size: 0.55em; margin-left: 0.15em; color: var(--c-steel); }
.stat__label { font: 400 var(--fs-xs)/1.3 var(--f-mono); color: var(--c-muted); text-transform: uppercase; letter-spacing: 0.08em; }

.hero__hud {
  position: absolute; z-index: 2; right: var(--gutter); top: calc(var(--nav-h) + var(--s-5));
  display: flex; align-items: center; gap: 0.75rem; font: 500 0.7rem/1 var(--f-mono); letter-spacing: 0.16em;
  text-transform: uppercase; color: var(--c-muted);
}
.hud__bar { width: 120px; height: 2px; background: var(--c-line-strong); overflow: hidden; }
.hud__fill { display: block; height: 100%; width: 100%; background: var(--c-accent); transform-origin: left; transform: scaleX(0); }
.hud__value { color: var(--c-accent); min-width: 4ch; }

.hero__tip {
  position: absolute; z-index: 3; left: 0; top: 0; pointer-events: none;
  padding: 0.35rem 0.6rem; border: 1px solid var(--c-accent); border-radius: 3px;
  background: rgba(11, 14, 18, 0.85); color: var(--c-accent);
  font: 500 0.72rem/1.2 var(--f-mono); letter-spacing: 0.1em; text-transform: uppercase; white-space: nowrap;
  opacity: 0; transform: translate(-9999px, 0); transition: opacity 0.18s;
}
.hero__tip.is-visible { opacity: 1; }

.hero__scroll {
  position: absolute; z-index: 2; left: 50%; bottom: var(--s-5); transform: translateX(-50%);
  display: flex; flex-direction: column; align-items: center; gap: 0.5rem;
  font: 500 0.66rem/1 var(--f-mono); letter-spacing: 0.24em; text-transform: uppercase; color: var(--c-muted); text-decoration: none;
}
.hero__scroll i { width: 1px; height: 36px; background: linear-gradient(var(--c-accent), transparent); animation: scrollcue 2.2s var(--ease-in-out) infinite; transform-origin: top; }
@media (max-height: 900px) { .hero__scroll { display: none; } }
@keyframes scrollcue { 0% { transform: scaleY(0); } 50% { transform: scaleY(1); } 100% { transform: scaleY(1); opacity: 0; } }

@media (max-width: 980px) {
  .hero { height: 170vh; }
  .hero__sticky { justify-content: flex-start; padding-top: calc(var(--s-6)); }
  .hero__vignette {
    background:
      linear-gradient(180deg, rgba(11, 14, 18, 0.92) 0%, rgba(11, 14, 18, 0.7) 45%, transparent 75%),
      linear-gradient(0deg, var(--c-bg) 0%, transparent 25%);
  }
  /* En pantallas angostas la mitad inferior queda libre para el modelo 3D;
     los datos se repiten en Nosotros e Infraestructura */
  .hero__stats, .hero__hud, .hero__scroll { display: none; }
  .hero__lead { font-size: var(--fs-sm); }
  .hero__ctas { margin-top: var(--s-5); }
  .hero__ctas .btn { flex: 1 1 auto; }
}
.about__lead { display: none; }
@media (max-width: 980px) and (max-height: 760px) {
  .hero__lead { display: none; }
  .about__lead { display: block; }
}
@media (max-width: 980px) and (max-height: 600px) {
  .hero__tagline { display: none; }
}

/* =========================================================
   Sections
   ========================================================= */
.section { position: relative; padding-block: var(--s-9); }
.section--alt { background: var(--c-bg-2); border-block: 1px solid var(--c-line); }
.section--tight { padding-block: var(--s-8); }
.section__head { margin-bottom: var(--s-7); }
.section__head--split { display: grid; grid-template-columns: 1.1fr 1fr; gap: var(--s-6) var(--s-8); align-items: end; }
.section__head--center { text-align: center; }
.section__head--center .kicker { justify-content: center; }
.kicker {
  display: flex; align-items: center; gap: 0.75rem; margin-bottom: var(--s-4);
  font: 500 var(--fs-xs)/1 var(--f-mono); letter-spacing: 0.18em; text-transform: uppercase; color: var(--c-muted);
}
.kicker span { color: var(--c-accent); }
.kicker span::after { content: " /"; color: var(--c-line-strong); }
.section__title {
  font: 700 var(--fs-h2)/0.98 var(--f-display); text-transform: uppercase; letter-spacing: 0.005em;
  text-wrap: balance; overflow-wrap: break-word;
}
.section__intro { color: var(--c-muted); font-size: var(--fs-lg); line-height: 1.6; text-wrap: pretty; }

@media (max-width: 860px) {
  .section__head--split { grid-template-columns: 1fr; }
}

/* ----- Nosotros ----- */
.about { display: grid; grid-template-columns: 1.25fr 1fr; gap: var(--s-8); align-items: start; }
.about__text p { font-size: var(--fs-lg); line-height: 1.7; color: var(--c-titanium); text-wrap: pretty; }
.about__text p + p { margin-top: var(--s-5); }
.about__lead + p::first-letter {
  float: left; font: 700 4.4em/0.82 var(--f-display); margin: 0.06em 0.12em 0 0; color: var(--c-accent);
}
.badge {
  position: relative; padding: var(--s-6); border: 1px solid var(--c-line-strong); border-radius: var(--r-lg);
  background:
    radial-gradient(120% 120% at 100% 0%, rgba(45, 95, 147, 0.35), transparent 55%),
    linear-gradient(160deg, var(--c-surface-2), var(--c-surface));
  overflow: hidden;
}
.badge::after {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background: linear-gradient(115deg, transparent 40%, rgba(255, 255, 255, 0.07) 50%, transparent 60%);
  transform: translateX(-100%); transition: transform 1.1s var(--ease-out);
}
.badge:hover::after { transform: translateX(100%); }
.badge__icon { width: 52px; height: 52px; color: var(--c-accent); }
.badge__title { margin-top: var(--s-4); font: 700 1.9rem/1 var(--f-display); text-transform: uppercase; }
.badge__text { margin-top: var(--s-3); color: var(--c-muted); font-size: var(--fs-sm); }
.timeline { margin-top: var(--s-5); border-left: 1px solid var(--c-line-strong); }
.timeline li { position: relative; display: flex; gap: var(--s-4); align-items: baseline; padding: 0.55rem 0 0.55rem var(--s-5); color: var(--c-muted); font-size: var(--fs-sm); }
.timeline li::before { content: ""; position: absolute; left: -4px; top: 1.05rem; width: 7px; height: 7px; background: var(--c-accent); transform: rotate(45deg); }
.timeline__year { font: 700 1.25rem/1 var(--f-display); color: var(--c-text); min-width: 3.2ch; }

.pillars { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--s-4); margin-top: var(--s-8); counter-reset: p; }
.pillar {
  position: relative; padding: var(--s-6) var(--s-5) var(--s-5); border-top: 2px solid var(--c-line-strong);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.025), transparent);
  transition: border-color 0.35s, background-color 0.35s;
}
.pillar::before {
  content: ""; position: absolute; left: 0; top: -2px; height: 2px; width: 100%; background: var(--c-accent);
  transform: scaleX(0); transform-origin: left; transition: transform 0.6s var(--ease-out);
}
.pillar:hover::before { transform: scaleX(1); }
.pillar__num { font: 500 var(--fs-xs)/1 var(--f-mono); color: var(--c-accent); letter-spacing: 0.15em; }
.pillar h3 { margin-top: var(--s-4); font: 700 var(--fs-h3)/1.05 var(--f-display); text-transform: uppercase; }
.pillar p { margin-top: var(--s-3); color: var(--c-muted); font-size: var(--fs-sm); }

@media (max-width: 860px) {
  .about { grid-template-columns: 1fr; gap: var(--s-6); }
  .pillars { grid-template-columns: 1fr; margin-top: var(--s-7); }
}

/* ----- Servicios ----- */
.services { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: var(--c-line); border: 1px solid var(--c-line); border-radius: var(--r-lg); overflow: hidden; }
.service {
  position: relative; padding: var(--s-6) var(--s-5) var(--s-6); background: var(--c-bg-2);
  transition: background-color 0.35s;
  isolation: isolate;
}
.service::after {
  content: ""; position: absolute; inset: 0; z-index: -1; opacity: 0; transition: opacity 0.4s;
  background: radial-gradient(220px circle at var(--mx, 50%) var(--my, 50%), rgba(242, 169, 0, 0.1), transparent 70%);
}
.service:hover::after { opacity: 1; }
.service:hover { background: var(--c-surface); }
.service__icon { width: 44px; height: 44px; color: var(--c-accent); transition: transform 0.5s var(--ease-out); }
.service:hover .service__icon { transform: rotate(-8deg) scale(1.06); }
.service h3 { margin-top: var(--s-5); font: 700 var(--fs-h3)/1.05 var(--f-display); text-transform: uppercase; overflow-wrap: break-word; }
.service p { margin-top: var(--s-3); color: var(--c-muted); font-size: var(--fs-sm); }

.process {
  margin-top: var(--s-7); display: grid; grid-template-columns: 1fr 1.2fr; gap: var(--s-6); align-items: center;
  padding: var(--s-6); border: 1px dashed var(--c-line-strong); border-radius: var(--r-lg);
}
.process__lead { color: var(--c-titanium); text-wrap: pretty; }
.process__steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--s-3); }
.process__steps li {
  display: flex; flex-direction: column; gap: 0.5rem; padding: var(--s-4); border-radius: var(--r-md);
  background: var(--c-surface); font-weight: 600; font-size: var(--fs-sm); line-height: 1.3;
  overflow-wrap: anywhere;
}
.process__n { font: 500 0.7rem/1 var(--f-mono); color: var(--c-accent); letter-spacing: 0.15em; }

@media (max-width: 980px) {
  .services { grid-template-columns: repeat(2, 1fr); }
  .process { grid-template-columns: 1fr; }
}
@media (max-width: 600px) {
  .services { grid-template-columns: 1fr; }
  .process { padding: var(--s-5); }
  .process__steps { grid-template-columns: repeat(2, 1fr); }
}

/* ----- Trabajos ----- */
.works { display: grid; grid-template-columns: repeat(4, 1fr); grid-auto-rows: 220px; grid-auto-flow: dense; gap: var(--s-3); }
.work { position: relative; min-width: 0; }
.work--wide { grid-column: span 2; grid-row: span 2; }
.work--tall { grid-row: span 2; }
.work__btn {
  position: relative; display: block; width: 100%; height: 100%; padding: 0; border: 0; border-radius: var(--r-md);
  overflow: hidden; cursor: zoom-in; background: var(--c-surface);
}
.work__btn img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.8s var(--ease-out), filter 0.5s; filter: saturate(0.85) contrast(1.05); }
.work__btn::after { content: ""; position: absolute; inset: 0; background: linear-gradient(0deg, rgba(11, 14, 18, 0.85), transparent 50%); opacity: 0.85; transition: opacity 0.4s; }
.work__cap {
  position: absolute; z-index: 1; left: var(--s-4); right: var(--s-4); bottom: var(--s-4);
  text-align: left; font: 600 var(--fs-sm)/1.3 var(--f-body); color: var(--c-text);
  transform: translateY(4px); transition: transform 0.4s var(--ease-out);
}
@media (hover: hover) {
  .work__btn:hover img { transform: scale(1.05); filter: saturate(1) contrast(1.08); }
  .work__btn:hover .work__cap { transform: none; }
}
@media (max-width: 860px) {
  .works { grid-template-columns: repeat(2, 1fr); grid-auto-rows: 180px; }
}
@media (max-width: 480px) {
  .works { grid-auto-rows: 150px; gap: var(--s-2); }
  .work__cap { font-size: var(--fs-xs); left: var(--s-3); right: var(--s-3); bottom: var(--s-3); }
}

/* ----- Lightbox ----- */
.lightbox {
  width: 100%; height: 100%; max-width: 100%; max-height: 100%; margin: 0; padding: var(--s-5);
  border: 0; background: rgba(6, 8, 11, 0.94); color: var(--c-text);
}
.lightbox[open] { display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: var(--s-3); animation: lbIn 0.3s var(--ease-out); }
.lightbox::backdrop { background: rgba(0, 0, 0, 0.6); }
.lightbox figure { min-width: 0; height: 100%; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: var(--s-3); }
.lightbox img { max-width: 100%; max-height: calc(100% - 3rem); object-fit: contain; border-radius: var(--r-sm); }
.lightbox figcaption { font: 500 var(--fs-sm)/1.4 var(--f-mono); color: var(--c-titanium); text-align: center; }
.lightbox__close, .lightbox__nav {
  width: 48px; height: 48px; border-radius: 50%; border: 1px solid var(--c-line-strong);
  background: rgba(255, 255, 255, 0.04); color: var(--c-text); font-size: 1.6rem; line-height: 1; cursor: pointer;
  transition: background-color 0.2s, border-color 0.2s;
}
.lightbox__close:hover, .lightbox__nav:hover { background: rgba(255, 255, 255, 0.1); border-color: var(--c-titanium); }
.lightbox__close { position: absolute; top: var(--s-4); right: var(--s-4); z-index: 1; }
@keyframes lbIn { from { opacity: 0; } to { opacity: 1; } }
@media (max-width: 600px) {
  .lightbox[open] { grid-template-columns: 1fr 1fr; grid-template-rows: 1fr auto; padding: var(--s-4); }
  .lightbox figure { grid-column: 1 / -1; grid-row: 1; }
  .lightbox__nav--prev { grid-row: 2; justify-self: end; }
  .lightbox__nav--next { grid-row: 2; justify-self: start; }
}

/* ----- Materiales ----- */
.materials {
  display: grid; grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.4fr); gap: var(--s-6);
  padding: var(--s-5); border: 1px solid var(--c-line); border-radius: var(--r-lg); background: var(--c-bg);
}
.materials__list { display: flex; flex-direction: column; gap: 2px; }
.mat-tab {
  position: relative; display: flex; align-items: center; justify-content: space-between; gap: var(--s-3);
  min-height: 52px; padding: 0.8rem 1rem; border: 0; border-radius: var(--r-md); background: transparent;
  text-align: left; font: 700 1.35rem/1.1 var(--f-display); text-transform: uppercase; letter-spacing: 0.02em;
  color: var(--c-muted); cursor: pointer; transition: color 0.25s, background-color 0.25s;
}
.mat-tab::after { content: "→"; font-family: var(--f-mono); font-size: 0.9rem; opacity: 0; transform: translateX(-6px); transition: opacity 0.25s, transform 0.3s var(--ease-out); }
.mat-tab:hover { color: var(--c-text); background: rgba(255, 255, 255, 0.03); }
.mat-tab[aria-selected="true"] { color: var(--c-text); background: var(--c-surface); }
.mat-tab[aria-selected="true"]::after { opacity: 1; transform: none; color: var(--c-accent); }

.materials__panel {
  display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: var(--s-6); align-items: center;
  padding: var(--s-6); border-radius: var(--r-md);
  background: radial-gradient(90% 90% at 30% 40%, rgba(45, 95, 147, 0.18), transparent 70%), var(--c-surface);
  min-height: 340px;
}
.materials__code { font: 500 var(--fs-xs)/1 var(--f-mono); color: var(--c-accent); letter-spacing: 0.18em; text-transform: uppercase; }
.materials__name { margin-top: var(--s-3); font: 700 clamp(2rem, 1.5rem + 1.8vw, 3rem)/0.95 var(--f-display); text-transform: uppercase; overflow-wrap: break-word; }
.materials__note { margin-top: var(--s-4); color: var(--c-titanium); }
.materials__more { margin-top: var(--s-5); color: var(--c-muted); font-size: var(--fs-sm); }
.materials__more a { color: var(--c-accent); }
.materials__info.is-swapping { animation: matSwap 0.45s var(--ease-out); }
@keyframes matSwap { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: none; } }

/* Material sample: a turned bar with a faced end */
.sample { --m1: #c9d0d6; --m2: #6d7680; --m3: #2b3036; --face: #aab3bc; display: grid; place-items: center; perspective: 700px; height: 100%; min-height: 220px; }
.sample[data-mat="inox"]     { --m1: #eef2f5; --m2: #a6b0ba; --m3: #4a525b; --face: #dfe5ea; }
.sample[data-mat="bronce"]   { --m1: #f0c48a; --m2: #b5793c; --m3: #4f2f12; --face: #d9a565; }
.sample[data-mat="plastico"] { --m1: #fbfbf7; --m2: #d9d9cf; --m3: #8f8f86; --face: #ecece4; }
.sample[data-mat="polimero"] { --m1: #6fa4df; --m2: #2d5f93; --m3: #10243b; --face: #4d86c2; }
.sample[data-mat="micarta"]  { --m1: #b88a5a; --m2: #7a5230; --m3: #2e1d0f; --face: #9b6d42; }
.sample__bar {
  position: relative; width: min(100%, 240px); aspect-ratio: 1 / 1.25; border-radius: 22px / 26px;
  background:
    repeating-linear-gradient(0deg, rgba(255, 255, 255, 0.06) 0 1px, transparent 1px 4px),
    linear-gradient(90deg, var(--m3) 0%, var(--m2) 18%, var(--m1) 42%, var(--m2) 64%, var(--m3) 100%);
  box-shadow: 0 40px 60px -30px rgba(0, 0, 0, 0.8), inset 0 0 0 1px rgba(255, 255, 255, 0.06);
  transform: rotateX(8deg) rotateY(-14deg);
  transition: background 0.6s, transform 0.8s var(--ease-out);
}
.sample__face {
  position: absolute; left: 0; right: 0; top: 0; height: 26%;
  border-radius: 50%;
  background:
    repeating-radial-gradient(circle at 50% 50%, rgba(0, 0, 0, 0.08) 0 1px, transparent 1px 5px),
    radial-gradient(circle at 40% 40%, var(--m1), var(--face) 55%, var(--m2));
  transform: translateY(-50%);
  box-shadow: inset 0 -2px 0 rgba(0, 0, 0, 0.25);
}
.sample__bar::after {
  content: ""; position: absolute; inset: 0; border-radius: inherit;
  background: linear-gradient(100deg, transparent 30%, rgba(255, 255, 255, 0.35) 45%, transparent 55%);
  background-size: 250% 100%; background-position: 120% 0; mix-blend-mode: overlay;
  animation: sheen 4.5s var(--ease-in-out) infinite;
}
@keyframes sheen { 0%, 30% { background-position: 120% 0; } 70%, 100% { background-position: -40% 0; } }
.materials__panel:hover .sample__bar { transform: rotateX(4deg) rotateY(10deg); }

@media (max-width: 860px) {
  .materials { grid-template-columns: 1fr; padding: var(--s-4); }
  .materials__list { flex-direction: row; flex-wrap: wrap; gap: var(--s-2); }
  .mat-tab { min-height: 44px; padding: 0.55rem 0.9rem; font-size: 1.05rem; border: 1px solid var(--c-line); }
  .mat-tab::after { display: none; }
  .materials__panel { grid-template-columns: 1fr; padding: var(--s-5); min-height: 0; }
  .sample { min-height: 180px; }
  .sample__bar { width: 150px; }
}

/* ----- Infraestructura ----- */
.figures { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--s-4); margin-bottom: var(--s-7); }
.figures li { display: flex; flex-direction: column; gap: 0.3rem; padding: var(--s-5); border: 1px solid var(--c-line); border-radius: var(--r-md); background: linear-gradient(180deg, var(--c-surface), transparent); color: var(--c-muted); font-size: var(--fs-sm); }
.figures__num { font: 700 clamp(1.8rem, 1.3rem + 1.6vw, 2.8rem)/1 var(--f-display); color: var(--c-text); white-space: nowrap; }
.figures__num small { font-size: 0.5em; color: var(--c-accent); margin-left: 0.15em; }

.infra { display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr); gap: var(--s-6); align-items: start; }
.spec { border: 1px solid var(--c-line-strong); border-radius: var(--r-lg); overflow: hidden; background: var(--c-bg-2); }
.spec__head {
  display: grid; grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.4fr); gap: var(--s-4);
  padding: 0.8rem var(--s-5); background: var(--c-surface-2);
  font: 500 0.7rem/1 var(--f-mono); letter-spacing: 0.18em; text-transform: uppercase; color: var(--c-accent);
}
.spec__row {
  display: grid; grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.4fr); gap: var(--s-4);
  padding: 0.85rem var(--s-5); border-top: 1px solid var(--c-line); transition: background-color 0.25s;
}
.spec__row:hover { background: rgba(242, 169, 0, 0.05); }
.spec__row dt { font-weight: 600; font-size: var(--fs-sm); overflow-wrap: break-word; }
.spec__row dd { font: 400 0.82rem/1.55 var(--f-mono); color: var(--c-muted); overflow-wrap: break-word; }
.spec__foot { padding: 0.7rem var(--s-5); border-top: 1px solid var(--c-line); font: 400 0.72rem/1.4 var(--f-mono); color: var(--c-steel); }

.shop { display: grid; grid-template-columns: repeat(2, 1fr); grid-auto-rows: 150px; grid-auto-flow: dense; gap: var(--s-3); }
.shop__item--tall { grid-row: span 2; }
.shop figure { position: relative; height: 100%; border-radius: var(--r-md); overflow: hidden; background: var(--c-surface); }
.shop img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.8s var(--ease-out); }
.shop figure:hover img { transform: scale(1.05); }
.shop figcaption {
  position: absolute; left: 0; right: 0; bottom: 0; padding: 2rem 0.8rem 0.7rem;
  background: linear-gradient(0deg, rgba(11, 14, 18, 0.9), transparent);
  font: 500 0.75rem/1.3 var(--f-mono); letter-spacing: 0.04em; color: var(--c-titanium);
}
@media (max-width: 980px) {
  .figures { grid-template-columns: repeat(2, 1fr); }
  .infra { grid-template-columns: 1fr; }
}
@media (max-width: 560px) {
  .spec__head { display: none; }
  .spec__row { grid-template-columns: 1fr; gap: 0.2rem; padding: 0.8rem var(--s-4); }
  .figures li { padding: var(--s-4); }
  .shop { grid-auto-rows: 120px; }
}

/* ----- Clientes ----- */
.marquee {
  overflow: hidden; padding-block: var(--s-2);
  mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
}
.marquee__track { display: flex; gap: var(--s-4); width: max-content; animation: marquee 60s linear infinite; }
.marquee:hover .marquee__track, .marquee:focus-within .marquee__track { animation-play-state: paused; }
.marquee__track li {
  flex: none; width: 168px; height: 112px; display: grid; place-items: center; padding: 14px 18px;
  border-radius: var(--r-md); background: #f4f5f6; transition: transform 0.35s var(--ease-out), box-shadow 0.35s;
}
.marquee__track img { max-width: 100%; max-height: 84px; width: auto; height: auto; object-fit: contain; filter: grayscale(1) contrast(1.05); opacity: 0.82; transition: filter 0.35s, opacity 0.35s; }
.marquee__track li:hover { transform: translateY(-4px); box-shadow: 0 16px 30px -18px rgba(242, 169, 0, 0.6); }
.marquee__track li:hover img { filter: none; opacity: 1; }
@keyframes marquee { to { transform: translateX(calc(-50% - var(--s-4) / 2)); } }

/* ----- Contacto ----- */
.contact { display: grid; grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.25fr); gap: var(--s-7); align-items: start; }
.channels { display: grid; gap: 1px; background: var(--c-line); border: 1px solid var(--c-line); border-radius: var(--r-lg); overflow: hidden; }
.channel {
  display: flex; flex-direction: column; gap: 0.2rem; padding: var(--s-4) var(--s-5); background: var(--c-bg);
  text-decoration: none; transition: background-color 0.25s;
}
a.channel:hover { background: var(--c-surface); }
a.channel:hover .channel__value { color: var(--c-accent); }
.channel__label { font: 500 0.7rem/1.2 var(--f-mono); letter-spacing: 0.16em; text-transform: uppercase; color: var(--c-muted); }
.channel__value { font-weight: 600; overflow-wrap: anywhere; transition: color 0.25s; }
.map { margin-top: var(--s-4); border-radius: var(--r-lg); overflow: hidden; border: 1px solid var(--c-line); aspect-ratio: 16 / 10; background: var(--c-surface); }
.map iframe { width: 100%; height: 100%; border: 0; display: block; filter: grayscale(0.4) invert(0.9) hue-rotate(180deg) contrast(0.9); }

.form { padding: var(--s-6); border: 1px solid var(--c-line-strong); border-radius: var(--r-lg); background: linear-gradient(180deg, var(--c-surface), var(--c-bg-2)); }
.form__grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--s-4) var(--s-4); }
.field { display: flex; flex-direction: column; gap: 0.4rem; min-width: 0; }
.field--full { grid-column: 1 / -1; }
.field label, .field__label { font: 500 0.78rem/1.3 var(--f-mono); letter-spacing: 0.08em; text-transform: uppercase; color: var(--c-titanium); }
.field label span { color: var(--c-accent); }
.field input, .field select, .field textarea {
  width: 100%; min-height: 48px; padding: 0.7rem 0.9rem; border: 1px solid var(--c-line-strong); border-radius: var(--r-sm);
  background: var(--c-bg); color: var(--c-text); font-size: 1rem;
  transition: border-color 0.2s, box-shadow 0.2s, background-color 0.2s;
}
.field select { appearance: none; -webkit-appearance: none; background-image: linear-gradient(45deg, transparent 50%, var(--c-muted) 50%), linear-gradient(135deg, var(--c-muted) 50%, transparent 50%); background-position: calc(100% - 18px) 50%, calc(100% - 13px) 50%; background-size: 5px 5px; background-repeat: no-repeat; padding-right: 2.2rem; }
.field select option { background: var(--c-bg); color: var(--c-text); }
.field textarea { resize: vertical; min-height: 130px; line-height: 1.5; }
.field input::placeholder, .field textarea::placeholder { color: #66717d; }
.field input:hover, .field select:hover, .field textarea:hover { border-color: var(--c-steel); }
.field input:focus, .field select:focus, .field textarea:focus { outline: none; border-color: var(--c-accent); box-shadow: 0 0 0 3px rgba(242, 169, 0, 0.18); }
.field [aria-invalid="true"] { border-color: var(--c-danger); }
.field [aria-invalid="true"]:focus { box-shadow: 0 0 0 3px rgba(255, 122, 107, 0.2); }
.field__error { min-height: 1.1em; font-size: 0.8rem; line-height: 1.3; color: var(--c-danger); }
.field__error:empty { min-height: 0; }
.field__meta { display: flex; justify-content: space-between; gap: var(--s-3); }
.field__count { margin-left: auto; font: 400 0.72rem/1.3 var(--f-mono); color: var(--c-steel); }
.field__hint { font-size: 0.8rem; color: var(--c-steel); }

.drop {
  position: relative; display: flex; align-items: center; gap: var(--s-3); min-height: 64px;
  padding: var(--s-4); border: 1px dashed var(--c-line-strong); border-radius: var(--r-md);
  color: var(--c-muted); cursor: pointer; transition: border-color 0.2s, background-color 0.2s, color 0.2s;
  text-transform: none !important; letter-spacing: normal !important; font: 400 var(--fs-sm)/1.4 var(--f-body) !important;
}
.drop svg { width: 26px; height: 26px; flex: none; color: var(--c-accent); }
.drop input { position: absolute; inset: 0; opacity: 0; cursor: pointer; width: 100%; height: 100%; }
.drop:hover, .drop.is-drag { border-color: var(--c-accent); background: rgba(242, 169, 0, 0.05); color: var(--c-text); }
.drop:focus-within { border-color: var(--c-accent); box-shadow: 0 0 0 3px rgba(242, 169, 0, 0.18); }
.drop.has-files { color: var(--c-text); border-style: solid; }
.drop__text { min-width: 0; overflow-wrap: anywhere; }

.form__actions { display: flex; flex-wrap: wrap; gap: var(--s-3); margin-top: var(--s-5); }
.form__status { margin-top: var(--s-4); font-size: var(--fs-sm); min-height: 1.4em; }
.form__status.is-ok { color: var(--c-ok); }
.form__status.is-error { color: var(--c-danger); }

@media (max-width: 980px) {
  .contact { grid-template-columns: 1fr; gap: var(--s-6); }
  .contact__info { order: 2; }
}
@media (max-width: 560px) {
  .form { padding: var(--s-5) var(--s-4); }
  .form__grid { grid-template-columns: 1fr; }
  .form__actions .btn { flex: 1 1 100%; }
}

/* =========================================================
   Footer & floating
   ========================================================= */
.footer { border-top: 1px solid var(--c-line); padding-block: var(--s-7) calc(var(--s-7) + 40px); background: var(--c-bg-2); }
.footer__inner { display: grid; grid-template-columns: 1fr 1.4fr auto; gap: var(--s-5); align-items: end; }
.footer__name { font: 700 1.6rem/1 var(--f-display); text-transform: uppercase; }
.footer__by { margin-top: 0.4rem; color: var(--c-muted); font-size: var(--fs-sm); }
.footer__addr { font-style: normal; color: var(--c-muted); font-size: var(--fs-sm); overflow-wrap: anywhere; }
.footer__addr a { color: var(--c-titanium); text-decoration-color: var(--c-line-strong); text-underline-offset: 3px; }
.footer__addr a:hover { color: var(--c-accent); }
.footer__copy { font: 400 0.75rem/1.4 var(--f-mono); color: var(--c-steel); }
@media (max-width: 860px) { .footer__inner { grid-template-columns: 1fr; } }

.wa-float {
  position: fixed; right: max(16px, env(safe-area-inset-right)); bottom: max(16px, env(safe-area-inset-bottom)); z-index: 40;
  width: 56px; height: 56px; border-radius: 50%; display: grid; place-items: center;
  background: #25d366; color: #fff; box-shadow: 0 10px 30px -8px rgba(37, 211, 102, 0.6);
  transition: transform 0.3s var(--ease-out), box-shadow 0.3s;
}
.wa-float svg { width: 30px; height: 30px; }
.wa-float:hover { transform: translateY(-3px) scale(1.05); box-shadow: 0 14px 34px -8px rgba(37, 211, 102, 0.75); }

/* =========================================================
   Reveal (only hidden when JS + GSAP are ready)
   ========================================================= */
.js-anim [data-reveal] { visibility: hidden; }

/* =========================================================
   Reduced motion
   ========================================================= */
@media (prefers-reduced-motion: reduce) {
  html:not(.force-motion) { scroll-behavior: auto; }
  :root:not(.force-motion) *, :root:not(.force-motion) *::before, :root:not(.force-motion) *::after { animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; }
  :root:not(.force-motion) .marquee { mask-image: none; -webkit-mask-image: none; }
  :root:not(.force-motion) .marquee__track { width: auto; flex-wrap: wrap; justify-content: center; padding-inline: var(--gutter); animation: none; }
  :root:not(.force-motion) .marquee__track li[aria-hidden="true"] { display: none; }
}