/* =========================================================================
   ADEYC — Sistema base
   Derivado del Manual de Marca ADEYC · Santiago, Chile · 2026
   Lenguaje: plano técnico. Retícula visible, líneas de un solo grosor,
   esquinas rectas, marcas de registro. Azul acero como único color de marca.
   ========================================================================= */

/* ---------- 01 · Tokens ------------------------------------------------- */
:root {
  /* Color de marca — proporción 70% papel / 20% tinta / 10% acero */
  --papel: #f2f2f3;
  --tinta: #1d1f20;
  --acero: #5980a6;
  --acero-profundo: #1d2d3d;

  --acero-50: #f4f7fa;
  --acero-100: #e7ecf2;
  --acero-200: #cfdae5;
  --acero-300: #afc1d4;
  --acero-400: #8aa5c0;
  --acero-500: #5980a6;
  --acero-600: #4a6b8c;
  --acero-700: #3b5673;
  --acero-800: #2c4159;
  --acero-900: #1d2d3d;
  --acero-950: #121c26;

  /* Semáforo técnico — reservado a estados de informe. No es color de marca. */
  --conforme: #3e8e5a;
  --observacion: #c9902a;
  --critico: #b4432e;

  /* Línea: un solo grosor en todo el sistema */
  --rule: 1px;
  --line: rgba(29, 45, 61, 0.16);
  --line-2: rgba(29, 45, 61, 0.32);
  --line-3: rgba(29, 45, 61, 0.6);
  --line-inv: rgba(242, 242, 243, 0.16);
  --line-inv-2: rgba(242, 242, 243, 0.32);

  /* Tipografía */
  --f-cond: "Barlow Condensed", "Arial Narrow", system-ui, sans-serif;
  --f-text: "Barlow", system-ui, -apple-system, "Segoe UI", sans-serif;

  --fs-display: clamp(2.9rem, 7vw, 5.9rem);
  --fs-h1: clamp(2.6rem, 5.6vw, 4rem);
  --fs-h2: clamp(1.9rem, 3.6vw, 3.25rem);
  --fs-h3: clamp(1.18rem, 1.5vw, 1.5rem);
  --fs-cifra: clamp(3.2rem, 6.4vw, 5.6rem);
  --fs-body: clamp(0.97rem, 0.42vw + 0.85rem, 1.0625rem);
  --fs-small: 0.8125rem;
  --fs-rotulo: 0.6875rem;

  /* Retícula */
  --gutter: clamp(1.25rem, 3.6vw, 3.5rem);
  --maxw: 1560px;
  --nav-h: 4.25rem;
  --mm: 5.5rem; /* paso de la retícula milimetrada */

  /* Movimiento */
  --e-tec: cubic-bezier(0.16, 1, 0.3, 1);
  --e-io: cubic-bezier(0.65, 0, 0.35, 1);
  --e-snap: cubic-bezier(0.22, 1.02, 0.36, 1);

  /* Superficies según contexto */
  --bg: var(--papel);
  --fg: var(--tinta);
  --fg-2: rgba(29, 31, 32, 0.62);
  --hair: var(--line);
  --hair-2: var(--line-2);
  --accent: var(--acero-700);
}

/* Contexto oscuro: campos de acero pleno */
.inv {
  --bg: var(--acero-950);
  --fg: var(--papel);
  --fg-2: rgba(242, 242, 243, 0.58);
  --hair: var(--line-inv);
  --hair-2: var(--line-inv-2);
  --accent: var(--acero-400);
  background: var(--bg);
  color: var(--fg);
}

/* ---------- 02 · Reset -------------------------------------------------- */
*,
*::before,
*::after {
  box-sizing: border-box;
  border-radius: 0; /* el manual prohíbe redondear */
}
* {
  margin: 0;
  padding: 0;
}
html {
  -webkit-text-size-adjust: 100%;
  scrollbar-width: none;
}
html::-webkit-scrollbar {
  width: 0;
  height: 0;
}
body {
  background: var(--papel);
  color: var(--tinta);
  font-family: var(--f-text);
  font-size: var(--fs-body);
  line-height: 1.6;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  text-rendering: optimizeLegibility;
}
body.is-locked {
  overflow: hidden;
  height: 100vh;
}
img,
svg,
canvas {
  display: block;
  max-width: 100%;
}
img {
  height: auto;
}
a {
  color: inherit;
  text-decoration: none;
}
button,
input,
textarea,
select {
  font: inherit;
  color: inherit;
  background: none;
  border: 0;
}
button {
  cursor: pointer;
}
ul,
ol {
  list-style: none;
}
table {
  border-collapse: collapse;
  width: 100%;
}
::selection {
  background: var(--acero-900);
  color: var(--papel);
}

/* ---------- 03 · Tipografía -------------------------------------------- */
h1,
h2,
h3,
h4,
.cond {
  font-family: var(--f-cond);
  font-weight: 600;
  letter-spacing: -0.005em;
  text-wrap: balance;
}
h1 {
  font-size: var(--fs-h1);
  line-height: 0.95;
  font-weight: 700;
}
h2 {
  font-size: var(--fs-h2);
  line-height: 1.06;
}
h3 {
  font-size: var(--fs-h3);
  line-height: 1.2;
}
.display {
  font-family: var(--f-cond);
  font-weight: 700;
  font-size: var(--fs-display);
  line-height: 0.9;
  letter-spacing: -0.018em;
}

.rotulo {
  font-family: var(--f-text);
  font-size: var(--fs-rotulo);
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  line-height: 1.4;
  color: var(--fg-2);
  font-variant-numeric: tabular-nums;
}
.rotulo--acero {
  color: var(--accent);
}
.lead {
  font-size: clamp(1.02rem, 0.5vw + 0.92rem, 1.22rem);
  line-height: 1.55;
  color: var(--fg);
}
.muted {
  color: var(--fg-2);
}
.tnum {
  font-variant-numeric: tabular-nums;
  font-feature-settings: "tnum" 1;
}

/* ---------- 04 · Retícula ---------------------------------------------- */
.shell {
  width: 100%;
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

/* Retícula técnica de fondo: columnas de un solo grosor */
.grid-overlay {
  position: fixed;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: var(--gutter);
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  opacity: 0.55;
}
.grid-overlay span {
  border-left: var(--rule) solid var(--line);
}
.grid-overlay span:last-child {
  border-right: var(--rule) solid var(--line);
}
.grid-overlay.is-inv span {
  border-color: var(--line-inv);
}
@media (min-width: 900px) {
  .grid-overlay {
    grid-template-columns: repeat(12, 1fr);
  }
}

/* Marcas de registro */
.reg {
  position: absolute;
  width: 9px;
  height: 9px;
  pointer-events: none;
  opacity: 0.9;
}
.reg::before,
.reg::after {
  content: "";
  position: absolute;
  background: currentColor;
  opacity: 0.5;
}
.reg::before {
  left: 50%;
  top: 0;
  width: var(--rule);
  height: 100%;
  transform: translateX(-50%);
}
.reg::after {
  top: 50%;
  left: 0;
  height: var(--rule);
  width: 100%;
  transform: translateY(-50%);
}
.reg--tl {
  top: -4px;
  left: -4px;
}
.reg--tr {
  top: -4px;
  right: -4px;
}
.reg--bl {
  bottom: -4px;
  left: -4px;
}
.reg--br {
  bottom: -4px;
  right: -4px;
}

/* Encabezado de sección: número + título + regla */
.sec-head {
  display: grid;
  gap: 1.1rem;
  padding-block: clamp(3.5rem, 7vw, 6.5rem) clamp(2rem, 3.5vw, 3.25rem);
  position: relative;
}
.sec-head__top {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1.5rem;
  padding-bottom: 0.85rem;
  border-bottom: var(--rule) solid var(--hair-2);
}
.sec-head__no {
  font-family: var(--f-cond);
  font-weight: 700;
  font-size: 0.9rem;
  letter-spacing: 0.1em;
  color: var(--accent);
}

/* ---------- 05 · Botones ------------------------------------------------ */
.btn {
  --btn-bg: transparent;
  --btn-fg: var(--fg);
  --btn-line: var(--hair-2);
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.95rem 1.5rem;
  background: var(--btn-bg);
  color: var(--btn-fg);
  border: var(--rule) solid var(--btn-line);
  font-family: var(--f-text);
  font-size: 0.8125rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  overflow: hidden;
  isolation: isolate;
  transition: color 0.45s var(--e-tec), border-color 0.45s var(--e-tec);
}
.btn__t {
  position: relative;
  z-index: 2;
  display: block;
}
/* Barrido: única superficie que se llena */
.btn::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  background: var(--acero-900);
  transform: scaleY(0);
  transform-origin: 50% 100%;
  transition: transform 0.5s var(--e-tec);
}
.btn:hover::before,
.btn:focus-visible::before {
  transform: scaleY(1);
}
.btn:hover,
.btn:focus-visible {
  color: var(--papel);
  border-color: var(--acero-900);
}
.btn__ico {
  position: relative;
  z-index: 2;
  width: 9px;
  height: 9px;
  flex: none;
  border-top: var(--rule) solid currentColor;
  border-right: var(--rule) solid currentColor;
  transform: rotate(45deg);
  transition: transform 0.45s var(--e-tec);
}
.btn:hover .btn__ico {
  transform: rotate(45deg) translate(2px, -2px);
}

/* Botón principal: la única superficie llena por defecto */
.btn--solid {
  --btn-bg: var(--acero-900);
  --btn-fg: var(--papel);
  --btn-line: var(--acero-900);
}
.btn--solid::before {
  background: var(--acero-500);
  transform-origin: 50% 0%;
}
.btn--solid:hover,
.btn--solid:focus-visible {
  color: var(--papel);
  border-color: var(--acero-500);
}
.inv .btn {
  --btn-line: var(--line-inv-2);
}
.inv .btn::before {
  background: var(--papel);
}
.inv .btn:hover,
.inv .btn:focus-visible {
  color: var(--acero-950);
  border-color: var(--papel);
}
.inv .btn--solid {
  --btn-bg: var(--papel);
  --btn-fg: var(--acero-950);
  --btn-line: var(--papel);
}
.inv .btn--solid::before {
  background: var(--acero-400);
}
.inv .btn--solid:hover,
.inv .btn--solid:focus-visible {
  color: var(--acero-950);
  border-color: var(--acero-400);
}

/* Etiquetas */
.tag {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.32rem 0.62rem;
  border: var(--rule) solid var(--hair-2);
  font-size: 0.6875rem;
  font-weight: 500;
  letter-spacing: 0.11em;
  text-transform: uppercase;
  color: var(--fg-2);
  white-space: nowrap;
}
.tag::before {
  content: "";
  width: 4px;
  height: 4px;
  background: var(--accent);
  flex: none;
}

/* ---------- 06 · Foco accesible ---------------------------------------- */
:focus-visible {
  outline: 2px solid var(--acero-500);
  outline-offset: 3px;
}
.skip {
  position: absolute;
  left: 50%;
  top: 0;
  translate: -50% -120%;
  z-index: 999;
  background: var(--acero-900);
  color: var(--papel);
  padding: 0.75rem 1.25rem;
  font-size: 0.8125rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  transition: translate 0.3s var(--e-tec);
}
.skip:focus-visible {
  translate: -50% 0;
}

/* ---------- 07 · Preloader --------------------------------------------- */
.pl {
  position: fixed;
  inset: 0;
  z-index: 200;
  background: var(--acero-950);
  color: var(--papel);
  display: grid;
  place-items: center;
  overflow: hidden;
  clip-path: inset(0 0 0 0);
}
.pl__grid {
  position: absolute;
  inset: 0;
  background-image: linear-gradient(
      to right,
      rgba(242, 242, 243, 0.07) var(--rule),
      transparent var(--rule)
    ),
    linear-gradient(
      to bottom,
      rgba(242, 242, 243, 0.07) var(--rule),
      transparent var(--rule)
    );
  background-size: var(--mm) var(--mm);
  opacity: 0;
  transform: scale(1.06);
}
.pl__scan {
  position: absolute;
  left: 0;
  right: 0;
  height: var(--rule);
  background: var(--acero-400);
  opacity: 0;
  top: 0;
  box-shadow: 0 0 0 0 transparent;
}
.pl__core {
  position: relative;
  z-index: 2;
  display: grid;
  justify-items: center;
  gap: 1.4rem;
}
.pl__iso {
  width: clamp(66px, 8vw, 92px);
  height: auto;
  overflow: visible;
}
.pl__iso path {
  fill: none;
  stroke: var(--acero-400);
  stroke-width: 3;
  stroke-linecap: square;
  stroke-linejoin: miter;
  vector-effect: non-scaling-stroke;
}
.pl__word {
  font-family: var(--f-cond);
  font-weight: 700;
  font-size: clamp(1.9rem, 4.2vw, 3rem);
  letter-spacing: 0.26em;
  text-indent: 0.26em;
  line-height: 1;
  display: flex;
  overflow: hidden;
}
.pl__word span {
  display: inline-block;
  will-change: transform;
}
.pl__rule {
  width: min(52vw, 340px);
  height: var(--rule);
  background: var(--line-inv-2);
  position: relative;
  overflow: hidden;
}
.pl__rule i {
  position: absolute;
  inset: 0;
  background: var(--acero-400);
  transform: scaleX(0);
  transform-origin: 0 50%;
}
.pl__claim {
  font-size: var(--fs-rotulo);
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: rgba(242, 242, 243, 0.5);
  opacity: 0;
}
.pl__meta {
  position: absolute;
  z-index: 2;
  font-size: var(--fs-rotulo);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: rgba(242, 242, 243, 0.42);
  opacity: 0;
  font-variant-numeric: tabular-nums;
}
.pl__meta--tl {
  top: var(--gutter);
  left: var(--gutter);
}
.pl__meta--tr {
  top: var(--gutter);
  right: var(--gutter);
  text-align: right;
}
.pl__meta--bl {
  bottom: var(--gutter);
  left: var(--gutter);
  display: flex;
  align-items: center;
  gap: 0.6rem;
}
.pl__meta--br {
  bottom: var(--gutter);
  right: var(--gutter);
  font-family: var(--f-cond);
  font-weight: 600;
  font-size: clamp(2rem, 4vw, 3rem);
  letter-spacing: 0.02em;
  color: rgba(242, 242, 243, 0.9);
  line-height: 0.9;
}
.pl__dot {
  width: 5px;
  height: 5px;
  background: var(--observacion);
  flex: none;
}
.pl__dot.is-ok {
  background: var(--conforme);
}
@media (max-width: 640px) {
  .pl__meta--tr {
    display: none;
  }
}

/* ---------- 08 · Barra de scroll personalizada -------------------------- */
.rail {
  position: fixed;
  top: 50%;
  right: clamp(0.6rem, 1.6vw, 1.4rem);
  translate: 0 -50%;
  z-index: 60;
  display: none;
  flex-direction: column;
  gap: 0;
  padding-block: 0.5rem;
  opacity: 0;
}
@media (min-width: 900px) {
  .rail {
    display: flex;
  }
}
.rail__track {
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: var(--rule);
  background: var(--line-2);
}
.rail.is-inv .rail__track {
  background: var(--line-inv-2);
}
.rail__prog {
  position: absolute;
  left: 0;
  top: 0;
  width: var(--rule);
  height: 0;
  background: var(--acero-500);
  transform-origin: 50% 0;
}
.rail__thumb {
  position: absolute;
  left: -3px;
  width: 7px;
  height: 7px;
  border: var(--rule) solid var(--acero-500);
  background: var(--acero-950);
  translate: 0 -50%;
  pointer-events: none;
}
.rail__i {
  position: relative;
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.62rem 0 0.62rem 1.05rem;
  color: var(--fg-2);
  font-size: 0.625rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  font-variant-numeric: tabular-nums;
  transition: color 0.4s var(--e-tec);
}
.rail__i::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  width: 7px;
  height: var(--rule);
  background: currentColor;
  opacity: 0.45;
  transition: width 0.4s var(--e-tec), opacity 0.4s var(--e-tec);
}
.rail__i span {
  opacity: 0;
  translate: -6px 0;
  transition: opacity 0.4s var(--e-tec), translate 0.4s var(--e-tec);
}
.rail__i.is-on {
  color: var(--accent);
}
.rail__i.is-on::before {
  width: 13px;
  opacity: 1;
}
.rail__i.is-on span,
.rail:hover .rail__i span {
  opacity: 1;
  translate: 0 0;
}

/* Barra superior de progreso */
.topbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  z-index: 80;
  pointer-events: none;
}
.topbar i {
  display: block;
  height: 100%;
  width: 100%;
  background: var(--acero-500);
  transform: scaleX(0);
  transform-origin: 0 50%;
}

/* ---------- 09 · Cursor retícula ---------------------------------------- */
.cursor {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 300;
  width: 26px;
  height: 26px;
  pointer-events: none;
  mix-blend-mode: difference;
  opacity: 0;
  will-change: transform;
}
.cursor::before,
.cursor::after {
  content: "";
  position: absolute;
  background: #fff;
}
.cursor::before {
  left: 50%;
  top: 0;
  width: 1px;
  height: 100%;
  transform: translateX(-50%);
}
.cursor::after {
  top: 50%;
  left: 0;
  height: 1px;
  width: 100%;
  transform: translateY(-50%);
}
.cursor__ring {
  position: absolute;
  inset: 4px;
  border: 1px solid #fff;
  opacity: 0;
  transition: opacity 0.3s var(--e-tec);
}
.cursor.is-hot .cursor__ring {
  opacity: 1;
}
@media (hover: none), (pointer: coarse) {
  .cursor {
    display: none;
  }
}

/* ---------- 10 · Navegación --------------------------------------------- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 70;
  height: var(--nav-h);
  display: flex;
  align-items: center;
  color: var(--papel);
  transition: color 0.5s var(--e-tec), background-color 0.5s var(--e-tec),
    border-color 0.5s var(--e-tec);
  border-bottom: var(--rule) solid transparent;
}
.nav.is-solid {
  background: rgba(242, 242, 243, 0.86);
  -webkit-backdrop-filter: blur(14px) saturate(1.4);
  backdrop-filter: blur(14px) saturate(1.4);
  color: var(--tinta);
  border-bottom-color: var(--line-2);
}
.nav__in {
  width: 100%;
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: var(--gutter);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}
.brand {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  opacity: 0;
}
.brand__iso {
  width: 22px;
  height: 27.5px;
  flex: none;
}
.brand__iso path {
  fill: none;
  stroke: currentColor;
  stroke-width: 4;
  stroke-linecap: square;
  stroke-linejoin: miter;
}
.brand__txt {
  display: grid;
  gap: 1px;
}
.brand__name {
  font-family: var(--f-cond);
  font-weight: 700;
  font-size: 1.16rem;
  letter-spacing: 0.2em;
  line-height: 1;
}
.brand__sub {
  font-size: 0.5rem;
  letter-spacing: 0.19em;
  text-transform: uppercase;
  opacity: 0.62;
  line-height: 1;
  padding-top: 3px;
  border-top: var(--rule) solid currentColor;
  border-color: color-mix(in srgb, currentColor 35%, transparent);
}
.nav__menu {
  display: none;
  align-items: center;
  gap: clamp(1.1rem, 2.2vw, 2.2rem);
}
@media (min-width: 900px) {
  .nav__menu {
    display: flex;
  }
}
.nav__link {
  position: relative;
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding-block: 0.4rem;
  opacity: 0.78;
  transition: opacity 0.35s var(--e-tec);
}
.nav__link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: var(--rule);
  background: currentColor;
  transform: scaleX(0);
  transform-origin: 100% 50%;
  transition: transform 0.45s var(--e-tec);
}
.nav__link:hover,
.nav__link:focus-visible {
  opacity: 1;
}
.nav__link:hover::after,
.nav__link:focus-visible::after {
  transform: scaleX(1);
  transform-origin: 0 50%;
}
.nav__cta {
  display: none;
}
@media (min-width: 1100px) {
  .nav__cta {
    display: inline-flex;
    padding: 0.72rem 1.15rem;
    font-size: 0.6875rem;
  }
}
.nav__burger {
  display: grid;
  gap: 5px;
  padding: 0.6rem 0;
  width: 26px;
}
@media (min-width: 900px) {
  .nav__burger {
    display: none;
  }
}
.nav__burger i {
  height: var(--rule);
  background: currentColor;
  transition: transform 0.4s var(--e-tec), opacity 0.3s;
}
.nav__burger[aria-expanded="true"] i:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
}
.nav__burger[aria-expanded="true"] i:nth-child(2) {
  opacity: 0;
}
.nav__burger[aria-expanded="true"] i:nth-child(3) {
  transform: translateY(-6px) rotate(-45deg);
}

/* Panel móvil */
.drawer {
  position: fixed;
  inset: var(--nav-h) 0 0 0;
  z-index: 65;
  background: var(--acero-950);
  color: var(--papel);
  padding: var(--gutter);
  display: grid;
  align-content: start;
  gap: 0;
  clip-path: inset(0 0 100% 0);
  pointer-events: none;
}
.drawer.is-open {
  pointer-events: auto;
}
.drawer a {
  font-family: var(--f-cond);
  font-weight: 600;
  font-size: clamp(1.75rem, 8vw, 2.5rem);
  line-height: 1;
  padding-block: 1.05rem;
  border-bottom: var(--rule) solid var(--line-inv);
  display: flex;
  justify-content: space-between;
  align-items: baseline;
}
.drawer a small {
  font-family: var(--f-text);
  font-size: 0.625rem;
  letter-spacing: 0.16em;
  opacity: 0.45;
}
.drawer__foot {
  padding-top: 2rem;
  display: grid;
  gap: 0.5rem;
  font-size: 0.8125rem;
  color: rgba(242, 242, 243, 0.6);
}

/* ---------- 11 · Utilidades de revelado --------------------------------- */
.rv {
  opacity: 0;
  will-change: transform, opacity;
}
.line-mask {
  display: block;
  overflow: hidden;
}
.line-mask > span {
  display: block;
  will-change: transform;
}
.hair {
  height: var(--rule);
  background: var(--hair-2);
  transform: scaleX(0);
  transform-origin: 0 50%;
}

/* ---------- 12 · Reducción de movimiento -------------------------------- */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  .cursor {
    display: none;
  }
  .rv {
    opacity: 1 !important;
  }
}