/* ==========================================================
   CargaM3 — Señalización de obra
   Paleta oficial · Big Shoulders (rótulo) + Public Sans (texto)
   ========================================================== */

:root {
  /* Marca */
  --yellow: #FFC928;
  --yellow-dark: #D9A514;
  --yellow-soft: #FFF2C2;
  --asphalt: #17191C;
  --asphalt-2: #1F2226;
  --graphite: #343A40;
  --concrete: #D9DEE3;
  --paper: #F7F8F9;
  --white: #FFFFFF;
  --muted: #6C757D;

  /* Estados */
  --ok: #198754;
  --warn: #E99A16;
  --bad: #D93636;
  --info: #2878B5;

  /* Tipografía */
  --display: "Big Shoulders", "Big Shoulders Display", "Arial Narrow", Impact, sans-serif;
  --text: "Public Sans", system-ui, -apple-system, "Segoe UI", sans-serif;
  --step-small: clamp(0.8125rem, 0.79rem + 0.1vw, 0.875rem);
  --step-body: clamp(1.0625rem, 1rem + 0.25vw, 1.1875rem);
  --step-lead: clamp(1.25rem, 1.1rem + 0.7vw, 1.625rem);
  --step-head: clamp(2.5rem, 1.2rem + 5vw, 5.5rem);

  /* Marco */
  --m: clamp(16px, 2.2vw, 32px);
  --nav-h: 68px;
  --gap-section: clamp(128px, 13vw, 200px);

  /* Movimiento */
  --ease-out: cubic-bezier(0.23, 1, 0.32, 1);
  --ease-in-out: cubic-bezier(0.77, 0, 0.175, 1);
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: var(--nav-h); -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--asphalt);
  font-family: var(--text);
  font-size: var(--step-body);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img, video, svg { display: block; max-width: 100%; }
a { color: inherit; }
h1, h2, h3, p, figure, dl, dd, ul { margin: 0; }
ul { padding: 0; list-style: none; }
::selection { background: var(--yellow); color: var(--asphalt); }
:focus-visible { outline: 3px solid var(--yellow); outline-offset: 3px; }

.skip {
  position: absolute; left: var(--m); top: -100px; z-index: 100;
  background: var(--yellow); color: var(--asphalt); padding: 12px 18px; font-weight: 700;
}
.skip:focus { top: 12px; }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

.h2 {
  font-family: var(--display);
  font-weight: 800;
  font-size: var(--step-head);
  line-height: 0.9;
  letter-spacing: -0.005em;
  text-transform: uppercase;
}

/* ---------- Botones ---------- */
.btn {
  --bg: var(--yellow); --fg: var(--asphalt);
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  min-height: 48px; padding: 0 22px;
  background: var(--bg); color: var(--fg);
  font: 700 1rem/1 var(--text);
  text-decoration: none; border: 0; border-radius: 0; cursor: pointer;
  transition: background-color 160ms var(--ease-out), color 160ms var(--ease-out), transform 160ms var(--ease-out);
}
.btn svg { transition: transform 200ms var(--ease-out); }
.btn:active { transform: scale(0.97); }
.btn--yellow { --bg: var(--yellow); --fg: var(--asphalt); }
.btn--black { --bg: var(--asphalt); --fg: var(--paper); }
.btn--block { width: 100%; }
.btn--chunky { min-height: 68px; padding: 0 32px; font-size: 1.125rem; white-space: nowrap; flex-shrink: 0; }
@media (hover: hover) and (pointer: fine) {
  .btn--yellow:hover, .btn--enter:hover { --bg: var(--yellow-dark); }
  .btn--black:hover { --bg: var(--graphite); }
  .btn:hover svg { transform: translate(3px, -3px); }
  .btn--chunky:hover svg { transform: translateX(5px); }
}

/* ==========================================================
   MENÚ SUPERIOR
   ========================================================== */
.nav {
  position: sticky; top: 0; z-index: 50;
  background: var(--asphalt); color: var(--paper);
}
.nav__inner {
  height: var(--nav-h);
  padding: 0 var(--m);
  display: flex; align-items: center; gap: 32px;
}
.brand { display: flex; align-items: center; gap: 12px; text-decoration: none; flex-shrink: 0; }
.brand__mark { width: 40px; height: 40px; }
.brand__word { width: 132px; height: auto; }
.nav__links { display: flex; gap: 4px; margin-left: auto; }
.nav__links a, .nav__demo {
  position: relative;
  padding: 10px 12px;
  font-size: 0.9375rem; font-weight: 600;
  text-decoration: none; color: var(--concrete);
  transition: color 160ms var(--ease-out);
}
.nav__links a::after {
  content: ""; position: absolute; left: 12px; right: 12px; bottom: 4px; height: 3px;
  background: var(--yellow);
  transform: scaleX(0); transform-origin: left;
  transition: transform 220ms var(--ease-out);
}
.nav__links a.is-current { color: var(--white); }
.nav__links a.is-current::after { transform: scaleX(1); }
@media (hover: hover) and (pointer: fine) {
  .nav__links a:hover, .nav__demo:hover { color: var(--white); }
  .nav__links a:hover::after { transform: scaleX(1); }
}
.nav__actions { display: flex; align-items: center; gap: 8px; }
.btn--enter { min-height: 44px; padding: 0 18px; }
.nav__toggle {
  display: none;
  width: 48px; height: 48px; padding: 0;
  background: transparent; border: 0; cursor: pointer; position: relative;
}
.nav__toggle span {
  position: absolute; left: 12px; right: 12px; height: 3px; background: var(--paper);
  transition: transform 260ms var(--ease-out);
}
.nav__toggle span:first-child { top: 18px; }
.nav__toggle span:last-child { top: 27px; }
.nav__toggle[aria-expanded="true"] span:first-child { transform: translateY(4.5px) rotate(45deg); }
.nav__toggle[aria-expanded="true"] span:last-child { transform: translateY(-4.5px) rotate(-45deg); }

.menu {
  position: fixed; inset: var(--nav-h) 0 0 0;
  background: var(--asphalt);
  padding: 24px var(--m) calc(24px + env(safe-area-inset-bottom));
  display: flex; flex-direction: column; justify-content: space-between;
  overflow-y: auto;
}
.menu[hidden] { display: none; }
.menu__links { display: flex; flex-direction: column; }
.menu__links a {
  font-family: var(--display); font-weight: 800; text-transform: uppercase;
  font-size: clamp(2.5rem, 12vw, 4rem); line-height: 1.05;
  color: var(--paper); text-decoration: none; padding: 6px 0;
  opacity: 0; transform: translateY(16px);
  animation: menuIn 420ms var(--ease-out) forwards;
}
.menu__links a:nth-child(2) { animation-delay: 40ms; }
.menu__links a:nth-child(3) { animation-delay: 80ms; }
.menu__links a:nth-child(4) { animation-delay: 120ms; }
.menu__links a:nth-child(5) { animation-delay: 160ms; }
.menu__links a:active { color: var(--yellow); }
.menu__foot { display: grid; gap: 16px; padding-top: 32px; }
.menu__mail { color: var(--concrete); font-size: 1.0625rem; }
@keyframes menuIn { to { opacity: 1; transform: none; } }

@media (max-width: 1100px) {
  .nav__links a { padding: 10px 8px; }
  .nav__links a::after { left: 8px; right: 8px; }
  .nav__demo { display: none; }
}
@media (max-width: 920px) {
  .nav__links { display: none; }
  .nav__actions { margin-left: auto; }
  .nav__toggle { display: block; }
}
@media (max-width: 420px) {
  .brand__word { width: 108px; }
  .brand__mark { width: 34px; height: 34px; }
  .btn--enter { padding: 0 14px; }
}

/* ==========================================================
   HERO — rótulo de obra
   ========================================================== */
.hero {
  min-height: calc(100svh - var(--nav-h));
  display: grid;
  grid-template-rows: 1fr auto;
  background: var(--asphalt);
  position: relative;
  overflow: hidden;
}
.hero__field {
  position: relative;
  padding: clamp(48px, 11svh, 140px) var(--m) clamp(48px, 8svh, 96px);
}
.hero__title {
  position: relative; z-index: 2;
  font-family: var(--display);
  font-weight: 800;
  font-size: clamp(72px, 10.6vw, 190px);
  line-height: 0.86;
  letter-spacing: -0.005em;
  text-transform: uppercase;
  color: var(--yellow);
  white-space: nowrap;
}
.hero__photo {
  position: absolute; z-index: 1;
  right: 5vw; top: -6svh;
  width: 27vw; aspect-ratio: 3 / 4;
  transform: rotate(5deg);
  transform-origin: 50% 100%;
}
.shutter {
  width: 100%; height: calc(100% + 18svh);
  border-radius: 999px 999px 0 0;
  overflow: hidden;
  background: var(--graphite);
}
.shutter img { width: 100%; height: 100%; object-fit: cover; object-position: 62% 50%; }

.hero__band {
  position: relative; z-index: 3;
  background: var(--yellow);
  min-height: 18svh;
  padding: 28px var(--m);
  display: flex; align-items: center; justify-content: space-between; gap: 32px;
}
.hero__lead { max-width: 44ch; font-size: clamp(1.125rem, 0.95rem + 0.4vw, 1.3125rem); font-weight: 600; line-height: 1.4; }

@media (max-width: 1100px) and (min-width: 761px) {
  .hero__photo { width: 46vw; right: 4vw; top: auto; bottom: -2svh; }
  .shutter { height: 100%; }
}
@media (max-width: 760px) {
  .hero { min-height: calc(100svh - var(--nav-h)); }
  .hero__field { padding: 9svh var(--m) 0; min-height: 56svh; }
  .hero__title { font-size: 14.5vw; }
  .hero__photo { right: -4vw; top: auto; bottom: -2svh; width: 64vw; }
  .shutter { height: 100%; }
  .hero__band { flex-direction: column; align-items: stretch; padding-top: 40px; }
  .hero__band .btn--chunky { width: 100%; justify-content: space-between; }
}

/* ==========================================================
   VALES — foto a sangre + vales en el borde
   ========================================================== */
.vales {
  position: relative;
  min-height: 100svh;
  display: flex; flex-direction: column; justify-content: space-between; gap: 64px;
  color: var(--paper);
  overflow: hidden;
  background: var(--asphalt);
}
.vales__bg {
  position: absolute; inset: 0; width: 100%; height: 100%;
  object-fit: cover; object-position: 50% 40%;
  transform: scale(1.08);
  will-change: transform;
}
.vales__copy {
  position: relative; z-index: 1;
  margin: 10svh 0 0 18%;
  align-self: flex-start;
  max-width: min(640px, 64vw);
  padding: clamp(24px, 3vw, 44px);
  background: rgba(23, 25, 28, 0.82);
  display: grid; gap: 20px;
}
.vales__copy p { font-size: clamp(1.25rem, 1rem + 0.9vw, 1.875rem); line-height: 1.3; }
.slips {
  position: relative; z-index: 1; margin: 0 var(--m);
  display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); gap: 12px;
  align-items: end;
}
.slip {
  height: var(--h);
  transform: rotate(var(--r, 0deg)) translateY(var(--y, 0px));
  transform-origin: 50% 100%;
  margin-bottom: -56px;
  background: var(--white); color: var(--asphalt);
  padding: 18px 16px;
  display: flex; flex-direction: column; gap: 4px;
  font-size: 15px; line-height: 1.35;
  overflow: hidden;
  transition: transform 300ms var(--ease-out);
}
.slip b { font-weight: 700; font-size: 1rem; }
.slip__cut { color: var(--muted); letter-spacing: 0.12em; overflow: hidden; white-space: nowrap; }
.slip span:not(.slip__cut) { word-spacing: 0.1em; }
@media (hover: hover) and (pointer: fine) {
  .slip:hover { --y: -18px; }
}
@media (max-width: 980px) {
  .vales__copy { margin: 6svh var(--m) 0; max-width: none; }
}
@media (max-width: 760px) {
  .vales { min-height: 100svh; }
  .vales__copy p { font-size: 1.25rem; }
}
@media (max-width: 1100px) {
  .slips {
    margin: 0; padding: 0 var(--m);
    display: flex; overflow-x: auto; scroll-snap-type: x mandatory;
    scrollbar-width: none;
  }
  .slips::-webkit-scrollbar { display: none; }
  .slip { flex: 0 0 min(44vw, 260px); scroll-snap-align: start; font-size: 14px; height: calc(var(--h) * 0.85); }
}

/* ==========================================================
   GENERADOR DE VALE
   ========================================================== */
.maker {
  display: grid; grid-template-columns: 1fr 1fr;
  margin-top: var(--gap-section);
  padding: 0 var(--m);
  gap: 0;
}
.maker__form { padding: clamp(32px, 4vw, 64px) clamp(0px, 3vw, 56px) clamp(32px, 4vw, 64px) 0; }
.maker__intro { margin: 24px 0 40px; max-width: 46ch; }
.form { display: grid; grid-template-columns: 1fr 1fr; gap: 20px 20px; }
.field { display: grid; gap: 8px; }
.field label { font-size: 0.9375rem; font-weight: 700; }
.field input, .field select {
  width: 100%; min-height: 52px; padding: 0 14px;
  font: 400 1rem/1.2 var(--text); color: var(--asphalt);
  background: var(--white);
  border: 2px solid var(--concrete); border-radius: 0;
  transition: border-color 160ms var(--ease-out);
  appearance: none;
}
.field select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24'%3E%3Cpath d='M5 9l7 7 7-7' fill='none' stroke='%2317191C' stroke-width='3'/%3E%3C/svg%3E");
  background-repeat: no-repeat; background-position: right 14px center; padding-right: 40px;
}
.field input:hover, .field select:hover { border-color: var(--muted); }
.field input:focus, .field select:focus { outline: none; border-color: var(--asphalt); background-color: var(--yellow-soft); }
.form .btn { grid-column: 1 / -1; justify-self: start; margin-top: 8px; }

.maker__stage {
  background: var(--graphite);
  display: grid; place-items: center;
  padding: clamp(32px, 5vw, 80px) clamp(20px, 4vw, 64px);
  min-height: 640px;
}
.ticket {
  width: min(420px, 100%);
  background: var(--white);
  padding: 28px 28px 24px;
  transform: rotate(-1.5deg);
  transition: transform 400ms var(--ease-out);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 10px), 95% 100%, 90% calc(100% - 10px), 85% 100%, 80% calc(100% - 10px), 75% 100%, 70% calc(100% - 10px), 65% 100%, 60% calc(100% - 10px), 55% 100%, 50% calc(100% - 10px), 45% 100%, 40% calc(100% - 10px), 35% 100%, 30% calc(100% - 10px), 25% 100%, 20% calc(100% - 10px), 15% 100%, 10% calc(100% - 10px), 5% 100%, 0 calc(100% - 10px));
}
.ticket.is-bump { animation: bump 360ms var(--ease-out); }
@keyframes bump { 0% { transform: rotate(-1.5deg) scale(1); } 40% { transform: rotate(-1deg) scale(1.015); } 100% { transform: rotate(-1.5deg) scale(1); } }
.ticket__head { display: flex; justify-content: space-between; align-items: center; }
.ticket__line { display: flex; justify-content: space-between; align-items: center; gap: 12px; margin: 18px 0 14px; }
.ticket__head img { width: 116px; height: auto; }
.ticket__state {
  background: var(--ok); color: var(--white);
  font-size: 0.8125rem; font-weight: 700; padding: 5px 10px;
}
.ticket__state.is-warn { background: var(--warn); color: var(--asphalt); }
.ticket__folio {
  font-family: var(--display); font-weight: 800; font-size: 3.5rem; line-height: 1;
  letter-spacing: 0;
}
.ticket__rows { display: grid; gap: 0; }
.ticket__rows div { display: flex; justify-content: space-between; gap: 16px; padding: 7px 0; }
.ticket__rows div:nth-child(odd) { background: var(--paper); margin: 0 -10px; padding: 7px 10px; }
.ticket__rows dt { color: #535B63; font-size: 0.9375rem; }
.ticket__rows dd { font-weight: 700; font-size: 0.9375rem; text-align: right; overflow-wrap: anywhere; }
.ticket__foot { display: flex; gap: 18px; align-items: center; margin-top: 20px; padding-bottom: 8px; }
.ticket__qr { width: 104px; height: 104px; flex-shrink: 0; background: var(--paper); }
.ticket__qr svg, .ticket__qr img { width: 100%; height: 100%; }
.ticket__sig { display: grid; gap: 4px; font-size: 0.875rem; min-width: 0; }
.ticket__sig span:first-child { color: var(--muted); }
.ticket__sig strong { font-size: 0.9375rem; overflow-wrap: anywhere; letter-spacing: 0.02em; }
.ticket__warn { color: var(--asphalt); background: var(--yellow-soft); padding: 6px 8px; font-weight: 600; }

@media (max-width: 900px) {
  .maker { grid-template-columns: 1fr; padding: 0; }
  .maker__form { padding: 0 var(--m) 48px; }
  .maker__stage { min-height: 0; padding: 56px var(--m); }
}
@media (max-width: 520px) {
  .form { grid-template-columns: 1fr; }
  .ticket { padding: 22px 20px 20px; }
  .ticket__folio { font-size: 2.75rem; }
}

/* ==========================================================
   CÓMO FUNCIONA — acordeón de paneles
   ========================================================== */
.proceso { margin-top: var(--gap-section); padding: 0 var(--m); }
.proceso__intro {
  display: grid; grid-template-columns: repeat(12, minmax(0, 1fr)); gap: 20px;
  align-items: end; margin-bottom: 64px;
}
.proceso__intro .h2 { grid-column: 1 / span 6; }
.proceso__intro p { grid-column: 7 / span 5; font-size: 1.125rem; }
.acc { display: flex; height: 540px; }
.acc__panel {
  position: relative;
  flex: 1 1 0; min-width: 0;
  background: var(--bg); color: var(--fg);
  transition: flex-grow 450ms var(--ease-in-out);
  overflow: hidden;
}
.acc__panel.is-open { flex-grow: 7; }
.acc__tab {
  position: absolute; inset: 0; z-index: 2;
  width: 100%; padding: 24px;
  background: transparent; border: 0; color: inherit; cursor: pointer;
  font: 800 1.375rem/1 var(--display); text-transform: uppercase; letter-spacing: 0.01em;
  display: flex; align-items: flex-end; justify-content: flex-start;
  writing-mode: vertical-rl; transform: rotate(180deg);
  text-align: right;
  transition: opacity 200ms var(--ease-out);
}
.acc__panel.is-open .acc__tab { opacity: 0; visibility: hidden; pointer-events: none; }
@media (hover: hover) and (pointer: fine) {
  .acc__panel:not(.is-open):hover { filter: brightness(1.15); }
}
.acc__body {
  position: absolute; inset: 0;
  display: grid; grid-template-columns: minmax(280px, 1fr) 1fr;
  opacity: 0; visibility: hidden;
  transition: opacity 300ms var(--ease-out), visibility 0s linear 300ms;
}
.acc__panel.is-open .acc__body { opacity: 1; visibility: visible; transition: opacity 400ms var(--ease-out) 180ms, visibility 0s; }
.acc__text { padding: clamp(24px, 3vw, 44px); display: flex; flex-direction: column; justify-content: space-between; min-width: 0; }
.acc__text h3 {
  font: 800 clamp(2rem, 1.4rem + 1.8vw, 2.75rem)/0.95 var(--display); text-transform: uppercase;
}
.acc__text p { max-width: 36ch; font-size: 1.0625rem; }
.acc__body img, .acc__body video { width: 100%; height: 100%; object-fit: cover; }
.acc__list { padding: clamp(24px, 3vw, 44px); display: grid; align-content: end; gap: 18px; }
.acc__list li { font-size: 1.0625rem; }
.acc__list strong { display: block; font: 800 3.5rem/1 var(--display); }

@media (max-width: 900px) {
  .proceso__intro { grid-template-columns: 1fr; margin-bottom: 40px; }
  .proceso__intro .h2, .proceso__intro p { grid-column: auto; }
  .proceso { padding: 0; }
  .proceso__intro { padding: 0 var(--m); }
  .acc { flex-direction: column; height: auto; }
  .acc__panel { flex: none; }
  .acc__tab {
    position: relative; inset: auto; height: 64px; padding: 0 var(--m);
    writing-mode: horizontal-tb; transform: none; align-items: center;
    font-size: 1.25rem;
  }
  .acc__panel.is-open .acc__tab { opacity: 1; visibility: visible; pointer-events: auto; }
  .acc__body { position: relative; display: none; grid-template-columns: 1fr; opacity: 1; visibility: visible; }
  .acc__panel.is-open .acc__body { display: grid; }
  .acc__text { padding: 0 var(--m) 28px; gap: 16px; }
  .acc__text h3 { display: none; }
  .acc__body img, .acc__body video { aspect-ratio: 16 / 10; height: auto; }
}

/* ==========================================================
   CENTRO DE MANDO — fragmento de la app
   ========================================================== */
.centro { margin-top: var(--gap-section); padding: 0 var(--m); }
.centro__head {
  display: grid; grid-template-columns: repeat(12, minmax(0, 1fr)); gap: 20px; align-items: end;
  margin-bottom: 48px;
}
.centro__head .h2 { grid-column: 1 / span 7; }
.centro__head p { grid-column: 8 / span 5; font-size: 1.125rem; }

.ui {
  display: grid; grid-template-columns: 200px 1fr;
  background: var(--paper);
  border: 1px solid var(--concrete);
  font-size: 0.9375rem;
  min-height: 560px;
}
.ui__side { background: var(--asphalt); color: var(--concrete); padding: 20px 12px; display: grid; align-content: start; gap: 24px; }
.ui__side img { margin-left: 8px; }
.ui__side li { padding: 11px 12px; font-weight: 600; }
.ui__side li.is-active { background: var(--yellow); color: var(--asphalt); }
.ui__main { padding: 20px; display: grid; gap: 16px; align-content: start; min-width: 0; }
.ui__top { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
.ui__top span { color: #535B63; }
.ui__kpis { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
.ui__kpis div { background: var(--white); border: 1px solid var(--concrete); padding: 14px 16px; display: grid; gap: 4px; }
.ui__kpis span { color: var(--muted); font-size: 0.875rem; }
.ui__kpis strong { font: 800 2rem/1 var(--display); }
.ui__grid { display: grid; grid-template-columns: 1.1fr 1fr; gap: 12px; }
.ui__map { background: var(--white); border: 1px solid var(--concrete); padding: 8px; }
.ui__map svg { width: 100%; height: auto; font-family: var(--text); }
.truck { offset-path: path("M70 120 C 170 110, 190 230, 300 225 S 470 140, 530 270"); offset-rotate: 0deg; animation: drive 16s linear infinite; animation-delay: var(--d); }
@keyframes drive { from { offset-distance: 0%; } to { offset-distance: 100%; } }
.ui__table { background: var(--white); border: 1px solid var(--concrete); overflow-x: auto; }
.ui__table table { width: 100%; border-collapse: collapse; min-width: 420px; }
.ui__table caption { text-align: left; font-weight: 700; padding: 14px 16px 6px; }
.ui__table th { text-align: left; background: var(--paper); color: var(--graphite); font-size: 0.8125rem; font-weight: 700; padding: 10px 16px; }
.ui__table td { padding: 11px 16px; border-top: 1px solid var(--concrete); white-space: nowrap; }
.tag { display: inline-flex; align-items: center; gap: 6px; font-size: 0.8125rem; font-weight: 700; padding: 3px 8px; }
.tag::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: currentColor; }
.tag--ok { color: #0F6B40; background: #E6F3EC; }
.tag--warn { color: #9A5F00; background: #FCEFD8; }
.tag--bad { color: #A82424; background: #FBE7E7; }
.tag--info { color: #1C5C8C; background: #E5F0F8; }

@media (max-width: 1000px) {
  .centro__head { grid-template-columns: 1fr; }
  .centro__head .h2, .centro__head p { grid-column: auto; }
  .ui { grid-template-columns: 1fr; }
  .ui__side { display: flex; align-items: center; overflow-x: auto; padding: 10px; gap: 12px; }
  .ui__side ul { display: flex; gap: 4px; }
  .ui__side li { white-space: nowrap; }
  .ui__grid { grid-template-columns: 1fr; }
}
@media (max-width: 560px) {
  .ui__kpis { grid-template-columns: 1fr 1fr; }
  .ui__main { padding: 12px; }
}

/* ==========================================================
   PLATAFORMA — celda de declaración + filas oscuras
   ========================================================== */
.plataforma {
  margin-top: var(--gap-section);
  display: grid; grid-template-columns: 1fr 1fr;
  min-height: 90svh;
}
.plataforma__cell {
  background: var(--concrete);
  padding: clamp(32px, 4vw, 64px) var(--m);
  display: flex; flex-direction: column; justify-content: space-between; gap: 48px;
}
.zig {
  display: grid;
  font: 800 clamp(3rem, 1rem + 5.4vw, 6.5rem)/0.88 var(--display);
  text-transform: uppercase; letter-spacing: -0.005em;
}
.zig__r { text-align: right; }
.plataforma__foot { display: flex; justify-content: space-between; align-items: flex-end; gap: 24px; }
.plataforma__foot p { max-width: 32ch; }
.plataforma__rows { display: grid; grid-auto-rows: 1fr; background: var(--asphalt); color: var(--paper); }
.row {
  display: grid; grid-template-columns: 5fr 4fr 3fr; gap: 20px;
  padding: 28px var(--m);
  align-items: start;
  transition: background-color 200ms var(--ease-out);
}
.row:nth-child(even) { background: var(--asphalt-2); }
.row h3 { font: 800 1.75rem/1 var(--display); text-transform: uppercase; }
.row p { font-size: 1rem; color: var(--concrete); }
.row ul { font-size: 0.9375rem; display: grid; gap: 4px; color: var(--yellow); font-weight: 600; }
@media (hover: hover) and (pointer: fine) {
  .row:hover { background: var(--graphite); }
}
@media (max-width: 1100px) {
  .row { grid-template-columns: 1fr 1fr; }
  .row ul { grid-column: 1 / -1; display: block; }
  .row ul li { display: inline; }
  .row ul li:not(:last-child)::after { content: ", "; }
}
@media (max-width: 900px) {
  .plataforma { grid-template-columns: 1fr; }
  .plataforma__cell { min-height: 0; padding-top: 56px; padding-bottom: 56px; }
  .zig { font-size: 15vw; }
  .row { grid-template-columns: 1fr; gap: 10px; }
}
@media (max-width: 520px) {
  .plataforma__foot { flex-direction: column; align-items: flex-start; }
}

/* ==========================================================
   MATERIALES — ficha técnica
   ========================================================== */
.materiales {
  margin-top: var(--gap-section);
  padding: 0 var(--m);
  display: grid; grid-template-columns: 5fr 7fr; gap: clamp(32px, 5vw, 80px);
  align-items: start;
}
.materiales__side { display: grid; gap: 24px; }
.materiales__side > p { max-width: 40ch; }
.materiales__photo { aspect-ratio: 4 / 3; overflow: hidden; margin-top: 16px; }
.materiales__photo img { width: 100%; height: 100%; object-fit: cover; transition: transform 900ms var(--ease-out); }
@media (hover: hover) and (pointer: fine) { .materiales__photo:hover img { transform: scale(1.04); } }
.materiales__table table { width: 100%; border-collapse: collapse; }
.materiales__table .sr-head { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }
@media (min-width: 561px) { .materiales__table tbody tr:first-child > * { border-top: 4px solid var(--asphalt); } }
.materiales__table thead th {
  text-align: left; font-size: 0.875rem; font-weight: 700; color: var(--graphite);
  padding: 0 0 14px; border-bottom: 4px solid var(--asphalt);
}
.materiales__table tbody th, .materiales__table td {
  text-align: left; vertical-align: top;
  padding: 22px 16px 22px 0; border-bottom: 1px solid var(--concrete);
}
.materiales__table tbody th {
  font: 800 clamp(1.5rem, 1.1rem + 1vw, 2.125rem)/1 var(--display); text-transform: uppercase;
}
.materiales__table td.uso { font-weight: 400; white-space: normal; color: var(--graphite); font-size: 0.9375rem; }
.materiales__table td { font-weight: 600; }
.materiales__table tbody tr { transition: background-color 160ms var(--ease-out); }
@media (hover: hover) and (pointer: fine) { .materiales__table tbody tr:hover { background: var(--yellow-soft); } }
.materiales__note { margin-top: 16px; font-size: 0.9375rem; color: var(--muted); }
@media (max-width: 900px) {
  .materiales { grid-template-columns: 1fr; }
  .materiales__photo { aspect-ratio: 16 / 9; }
}
@media (max-width: 560px) {
  .materiales__table thead { display: none; }
  .materiales__table tbody tr { display: grid; grid-template-columns: 1fr 1fr; border-bottom: 1px solid var(--concrete); padding: 18px 0; }
  .materiales__table tbody th { grid-column: 1 / -1; padding: 0 0 6px; border: 0; }
  .materiales__table td.uso { grid-column: 1 / -1; padding-bottom: 10px; }
  .materiales__table td { border: 0; padding: 0; }
}

/* ==========================================================
   CTA — banda compacta para entrar a la plataforma
   ========================================================== */
.cta {
  margin-top: var(--gap-section);
  display: flex; align-items: center; justify-content: space-between; gap: 32px;
  padding: clamp(48px, 5vw, 72px) var(--m) clamp(40px, 4.5vw, 64px);
  background: var(--yellow); color: var(--asphalt);
  text-decoration: none;
  clip-path: polygon(0 32px, 32px 0, calc(100% - 32px) 0, 100% 32px, 100% 100%, 0 100%);
  transition: background-color 240ms var(--ease-out), color 240ms var(--ease-out);
}
.cta__note { display: grid; gap: 6px; max-width: 34ch; font-size: var(--step-lead); line-height: 1.3; }
.cta__note strong { font-weight: 700; }
.cta__note span { font-size: var(--step-body); font-weight: 600; opacity: 0.8; }
.cta__go { display: flex; align-items: center; gap: clamp(16px, 2vw, 28px); }
.cta__word {
  font: 800 clamp(64px, 8.5vw, 136px)/0.8 var(--display);
  text-transform: uppercase; letter-spacing: -0.005em;
  transition: transform 320ms var(--ease-out);
}
.cta__arrow {
  display: grid; place-items: center;
  width: clamp(64px, 6vw, 96px); aspect-ratio: 1;
  background: var(--asphalt); color: var(--yellow);
  transition: background-color 240ms var(--ease-out), color 240ms var(--ease-out), transform 320ms var(--ease-out);
}
.cta__arrow svg { width: 50%; height: 50%; transition: transform 320ms var(--ease-out); }
.cta:hover, .cta:focus-visible { background: var(--asphalt); color: var(--paper); }
.cta:hover .cta__arrow, .cta:focus-visible .cta__arrow { background: var(--yellow); color: var(--asphalt); }
.cta:hover .cta__word { transform: translateX(-6px); }
.cta:hover .cta__arrow svg { transform: translate(3px, -3px); }
.cta:active .cta__arrow { transform: scale(0.96); }
.cta:focus-visible { outline-offset: -6px; }
@media (max-width: 760px) {
  .cta { flex-direction: column-reverse; align-items: stretch; gap: 24px; clip-path: polygon(0 20px, 20px 0, calc(100% - 20px) 0, 100% 20px, 100% 100%, 0 100%); }
  .cta__go { justify-content: space-between; }
  .cta__word { font-size: 19vw; }
  .cta__arrow { width: 64px; }
}

/* ==========================================================
   FOOTER — compacto, rótulo de obra
   ========================================================== */
.foot {
  background: var(--asphalt); color: var(--paper);
  padding: clamp(56px, 7vw, 96px) var(--m) 24px;
}
.foot__cta {
  display: flex; justify-content: space-between; align-items: flex-end; gap: 24px 48px; flex-wrap: wrap;
  padding-bottom: clamp(36px, 4vw, 56px);
}
.foot__label {
  font: 800 clamp(1.75rem, 1.2rem + 1.6vw, 2.75rem)/0.95 var(--display);
  text-transform: uppercase; color: var(--paper);
  max-width: 14ch;
}
.foot__mail {
  position: relative;
  font: 800 clamp(2.25rem, 1rem + 4.4vw, 5.25rem)/0.9 var(--display);
  text-transform: uppercase; letter-spacing: -0.005em;
  color: var(--yellow); text-decoration: none; white-space: nowrap;
  padding-bottom: 8px;
  transition: color 200ms var(--ease-out);
}
.foot__mail::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 5px;
  background: currentColor;
  transform: scaleX(0); transform-origin: left;
  transition: transform 320ms var(--ease-out);
}
@media (hover: hover) and (pointer: fine) {
  .foot__mail:hover { color: var(--paper); }
  .foot__mail:hover::after { transform: scaleX(1); }
}
.foot__br { display: none; }
.foot__grid {
  display: grid; grid-template-columns: 1.5fr 1fr 1fr 1fr; gap: 32px;
  background: var(--asphalt-2);
  padding: clamp(24px, 3vw, 40px);
  border-top: 6px solid var(--yellow);
}
.foot__brand { display: grid; gap: 10px; align-content: start; font-size: 0.9375rem; color: var(--concrete); }
.foot__brand img { margin-bottom: 6px; }
.foot__col { display: grid; gap: 10px; align-content: start; }
.foot__col h3 { font-size: 0.9375rem; font-weight: 700; color: var(--paper); margin-bottom: 4px; }
.foot__col a {
  font-size: 0.9375rem; color: var(--concrete); text-decoration: none;
  width: fit-content;
  transition: color 160ms var(--ease-out), transform 160ms var(--ease-out);
}
@media (hover: hover) and (pointer: fine) {
  .foot__col a:hover { color: var(--yellow); transform: translateX(3px); }
}
.foot__base {
  display: flex; justify-content: space-between; align-items: flex-start; gap: 16px 32px; flex-wrap: wrap;
  padding-top: 22px;
  font-size: 0.875rem; color: var(--concrete);
}
.foot__base > p { max-width: 60ch; }
.foot__credits { flex: 1 1 240px; max-width: 520px; }
.foot__credits summary { cursor: pointer; font-weight: 600; }
.foot__credits summary:hover { color: var(--paper); }
.foot__credits p { margin-top: 10px; line-height: 1.55; }
.foot__up { display: inline-flex; align-items: center; gap: 6px; font-weight: 600; text-decoration: none; }
.foot__up svg { transition: transform 200ms var(--ease-out); }
.foot__up:hover { color: var(--yellow); }
.foot__up:hover svg { transform: translateY(-3px); }
@media (max-width: 960px) {
  .foot__grid { grid-template-columns: 1fr 1fr; }
  .foot__brand { grid-column: 1 / -1; }
}
@media (max-width: 560px) {
  .foot__cta { flex-direction: column; align-items: flex-start; }
  .foot__mail { font-size: 12.6vw; white-space: normal; }
  .foot__br { display: inline; }
  .foot__grid { grid-template-columns: 1fr 1fr; gap: 28px 20px; }
  .foot__base { flex-direction: column; }
}

/* ==========================================================
   PÁGINAS LEGALES
   ========================================================== */
.legal { padding: clamp(56px, 8vw, 112px) var(--m) clamp(96px, 10vw, 160px); }
.legal__head { display: grid; gap: 20px; max-width: 980px; }
.legal__title {
  font: 800 var(--step-head)/0.9 var(--display);
  text-transform: uppercase; letter-spacing: -0.005em;
}
.legal__lead { font-size: var(--step-lead); line-height: 1.35; max-width: 52ch; }
.legal__date { font-size: 0.9375rem; color: #535B63; }
.legal__layout {
  display: grid; grid-template-columns: 260px minmax(0, 1fr); gap: clamp(32px, 5vw, 80px);
  margin-top: clamp(48px, 6vw, 88px); align-items: start;
}
.legal__toc {
  position: sticky; top: calc(var(--nav-h) + 24px);
  background: var(--white); padding: 24px;
  border-left: 6px solid var(--yellow);
}
.legal__toc h2 { font-size: 1rem; font-weight: 700; margin-bottom: 12px; }
.legal__toc ol { list-style: none; margin: 0; padding: 0; display: grid; gap: 4px; }
.legal__toc a {
  display: block; padding: 5px 0; font-size: 0.9375rem; color: var(--graphite); text-decoration: none;
  transition: color 160ms var(--ease-out), transform 160ms var(--ease-out);
}
.legal__toc a:hover { color: var(--asphalt); transform: translateX(3px); }
.legal__body { max-width: 76ch; }
.legal__body section + section { margin-top: 56px; }
.legal__body h2 {
  font: 800 clamp(1.75rem, 1.3rem + 1.2vw, 2.375rem)/0.95 var(--display);
  text-transform: uppercase; margin-bottom: 16px;
}
.legal__body p + p, .legal__body ul + p, .legal__body p + ul { margin-top: 14px; }
.legal__body ul { list-style: square; padding-left: 22px; display: grid; gap: 8px; }
.legal__body li::marker { color: var(--yellow-dark); }
.legal__body a, .legal__lead a {
  color: var(--asphalt); text-decoration: underline;
  text-decoration-color: var(--yellow); text-decoration-thickness: 3px; text-underline-offset: 3px;
}
.legal__body a:hover { background: var(--yellow-soft); }
.legal__body section { scroll-margin-top: calc(var(--nav-h) + 24px); }
@media (max-width: 900px) {
  .legal__layout { grid-template-columns: 1fr; }
  .legal__toc { position: static; }
}

/* ==========================================================
   404
   ========================================================== */
.nf {
  background: var(--asphalt); color: var(--paper);
  min-height: calc(80svh - var(--nav-h));
  padding: clamp(48px, 8vw, 120px) var(--m);
  display: flex; flex-direction: column; justify-content: center; gap: 28px;
}
.nf__title {
  font: 800 clamp(96px, 22vw, 340px)/0.8 var(--display);
  text-transform: uppercase; color: var(--yellow);
}
.nf__lead { font-size: var(--step-lead); max-width: 40ch; }
.nf__actions { display: flex; gap: 12px; flex-wrap: wrap; }
.nf__actions .btn--black { --bg: var(--graphite); }
@media (max-width: 560px) { .nf__actions .btn { width: 100%; } }

/* ==========================================================
   MOVIMIENTO
   ========================================================== */
.js [data-reveal] { opacity: 0; transform: translateY(24px); }
.js [data-reveal].is-in {
  opacity: 1; transform: none;
  transition: opacity 700ms var(--ease-out), transform 700ms var(--ease-out);
  transition-delay: var(--delay, 0ms);
}
.js .hero-in { opacity: 0; transform: translateY(24px); }
.js .hero.is-in .hero-in { opacity: 1; transform: none; transition: opacity 800ms var(--ease-out), transform 800ms var(--ease-out); }
.js .hero.is-in .hero__lead { transition-delay: 220ms; }
.js .hero.is-in .btn--chunky { transition-delay: 300ms, 300ms, 0ms; transition-property: opacity, transform, background-color; }
.js .shutter { clip-path: inset(100% 0 0 0 round 999px 999px 0 0); }
.js .shutter img { transform: scale(1.12); }
.js .hero.is-in .shutter { clip-path: inset(0 0 0 0 round 999px 999px 0 0); transition: clip-path 1100ms var(--ease-in-out) 150ms; }
.js .hero.is-in .shutter img { transform: scale(1); transition: transform 1500ms var(--ease-out) 150ms; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .js [data-reveal], .js .hero-in { opacity: 1; transform: none; }
  .js [data-reveal].is-in { transition: opacity 300ms linear; }
  .js .shutter, .js .hero.is-in .shutter { clip-path: none; transition: none; }
  .js .shutter img, .js .hero.is-in .shutter img { transform: none; transition: none; }
  .vales__bg { transform: none !important; }
  .truck { animation: none; offset-distance: 40%; }
  .menu__links a { animation: none; opacity: 1; transform: none; }
  .acc__panel { transition: none; }
}