/* ==========================================================================
   Construcciones Ándalo — Sistema de diseño
   Arquitectura + Construcción · Retícula fuerte, concreto y acento ocre
   ========================================================================== */

/* --------------------------------------------------------------- Tokens - */
:root {
  /* Concreto */
  --c-900: #131519;
  --c-850: #1b1e23;
  --c-800: #23272d;
  --c-700: #363b43;
  --c-600: #4c525b;
  --c-500: #6b727c;
  --c-400: #949aa3;
  --c-300: #c2c6cb;
  --c-200: #dcdfe2;
  --c-150: #e7e9ea;
  --c-100: #f1f2f2;
  --hueso: #f7f6f4;
  --blanco: #ffffff;

  /* Acento ocre */
  --ocre: #b8752a;
  --ocre-viv: #d8942f;
  --ocre-txt: #8f5a15;
  --ocre-soft: #f5ecdf;

  /* Semántica */
  --bg: var(--blanco);
  --fg: var(--c-900);
  --muted: var(--c-600);
  --line: var(--c-200);
  --line-fuerte: var(--c-300);
  /* Borde de controles interactivos (campos, filtros, botones de línea):
     3,9:1 mínimo requerido; c-500 sobre blanco da 4,86:1. --line-fuerte
     (1,72:1) queda reservado a separadores puramente decorativos. */
  --borde-control: var(--c-500);
  --borde-control-hover: var(--c-700);

  /* Tipografía */
  --font-display: "Archivo", "Helvetica Neue", Arial, "Segoe UI", sans-serif;
  --font-body: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;

  /* Escala */
  --step--1: clamp(0.78rem, 0.76rem + 0.1vw, 0.84rem);
  --step-0: clamp(0.95rem, 0.92rem + 0.15vw, 1.05rem);
  --step-1: clamp(1.1rem, 1.03rem + 0.35vw, 1.35rem);
  --step-2: clamp(1.35rem, 1.2rem + 0.7vw, 1.85rem);
  --step-3: clamp(1.75rem, 1.45rem + 1.4vw, 2.75rem);
  --step-4: clamp(2.2rem, 1.6rem + 2.8vw, 4.25rem);
  --step-5: clamp(2.8rem, 1.7rem + 4.9vw, 6.5rem);

  /* Espaciado */
  --gap: clamp(1.25rem, 0.9rem + 1.4vw, 2rem);
  --sec-y: clamp(3.75rem, 2.4rem + 5.4vw, 8rem);
  --shell: 1360px;

  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
  --dur: 0.5s;
}

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

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: 5.5rem;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-body);
  font-size: var(--step-0);
  line-height: 1.65;
  font-feature-settings: "kern", "liga", "tnum";
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

body.nav-abierto { overflow: hidden; }

h1, h2, h3, h4, h5 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.04;
  letter-spacing: -0.022em;
  margin: 0 0 0.6em;
  text-wrap: balance;
}

h1 { font-size: var(--step-4); }
h2 { font-size: var(--step-3); }
h3 { font-size: var(--step-2); }
h4 { font-size: var(--step-1); }

p { margin: 0 0 1.1em; text-wrap: pretty; }
p:last-child { margin-bottom: 0; }

a { color: inherit; text-decoration-thickness: 1px; text-underline-offset: 3px; }

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

ul, ol { margin: 0 0 1.1em; padding-left: 1.15rem; }
li { margin-bottom: 0.4em; }

strong { font-weight: 600; }

hr {
  border: 0;
  border-top: 1px solid var(--line);
  margin: 0;
}

::selection { background: var(--ocre); color: #fff; }

:focus-visible {
  outline: 3px solid var(--ocre);
  outline-offset: 3px;
  border-radius: 1px;
}

/* -------------------------------------------------------------- Layout - */
.contenedor {
  width: min(100% - clamp(2rem, 5vw, 5rem), var(--shell));
  margin-inline: auto;
}
.contenedor--ancho { width: min(100% - clamp(1.5rem, 3vw, 3rem), 1680px); }
.contenedor--angosto { width: min(100% - clamp(2rem, 5vw, 5rem), 900px); margin-inline: auto; }

.seccion { padding-block: var(--sec-y); position: relative; }
.seccion--linea { border-top: 1px solid var(--line); }
.seccion--hueso { background: var(--hueso); }
.seccion--oscura {
  background: var(--c-900);
  color: var(--c-150);
}
.seccion--oscura h2,
.seccion--oscura h3,
.seccion--oscura h4 { color: #fff; }

/* Retícula decorativa de fondo */
.reticula {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image: repeating-linear-gradient(
    to right,
    var(--line) 0 1px,
    transparent 1px calc(100% / 6)
  );
  background-size: 100% 100%;
  opacity: 0.55;
  z-index: 0;
}
.seccion--oscura .reticula {
  background-image: repeating-linear-gradient(
    to right,
    rgba(255, 255, 255, 0.09) 0 1px,
    transparent 1px calc(100% / 6)
  );
  opacity: 1;
}
.seccion > .contenedor,
.seccion > .contenedor--ancho { position: relative; z-index: 1; }

/* ---------------------------------------------------------- Tipografía - */
.eyebrow {
  font-family: var(--font-display);
  font-size: var(--step--1);
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--muted);
  display: flex;
  align-items: center;
  gap: 0.85rem;
  margin: 0 0 1.5rem;
}
.eyebrow::before {
  content: "";
  width: clamp(1.75rem, 4vw, 3.5rem);
  height: 2px;
  background: var(--ocre);
  flex: none;
}
.eyebrow .num { color: var(--ocre-txt); }
.seccion--oscura .eyebrow { color: var(--c-400); }
.seccion--oscura .eyebrow .num { color: var(--ocre-viv); }

.lead {
  font-size: var(--step-1);
  line-height: 1.5;
  color: var(--c-700);
  max-width: 62ch;
}
.seccion--oscura .lead { color: var(--c-300); }

.dato {
  font-family: var(--font-display);
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.03em;
}

.cabecera-seccion {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--gap);
  margin-bottom: clamp(2rem, 4vw, 3.5rem);
}
@media (min-width: 900px) {
  .cabecera-seccion { grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr); align-items: end; }
  .cabecera-seccion h2 { margin-bottom: 0; }
}

/* ------------------------------------------------------------- Botones - */
.btn {
  --btn-bg: var(--c-900);
  --btn-fg: #fff;
  --btn-bd: var(--c-900);
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  padding: 0.95rem 1.6rem;
  background: var(--btn-bg);
  color: var(--btn-fg);
  border: 1px solid var(--btn-bd);
  font-family: var(--font-display);
  font-size: var(--step--1);
  font-weight: 600;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  text-decoration: none;
  cursor: pointer;
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease),
    border-color var(--dur) var(--ease), transform 0.25s var(--ease);
  position: relative;
}
.btn:hover { --btn-bg: var(--ocre); --btn-bd: var(--ocre); transform: translateY(-2px); }
.btn .flecha { transition: transform 0.35s var(--ease); }
.btn:hover .flecha { transform: translateX(5px); }

.btn--linea { --btn-bg: transparent; --btn-fg: var(--c-900); --btn-bd: var(--c-500); }
.btn--linea:hover { --btn-bg: var(--c-900); --btn-fg: #fff; --btn-bd: var(--c-900); }

.btn--claro { --btn-bg: #fff; --btn-fg: var(--c-900); --btn-bd: #fff; }
.btn--claro:hover { --btn-bg: var(--ocre); --btn-fg: #fff; --btn-bd: var(--ocre); }

.btn--fantasma { --btn-bg: transparent; --btn-fg: #fff; --btn-bd: rgba(255, 255, 255, 0.45); }
.btn--fantasma:hover { --btn-bg: #fff; --btn-fg: var(--c-900); --btn-bd: #fff; }

.enlace-flecha {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  font-family: var(--font-display);
  font-size: var(--step--1);
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ocre-txt);
  text-decoration: none;
  border-bottom: 1px solid currentColor;
  padding-bottom: 0.2rem;
  transition: gap 0.3s var(--ease), color 0.3s var(--ease);
}
.enlace-flecha:hover { gap: 1rem; color: var(--c-900); }
.seccion--oscura .enlace-flecha { color: var(--ocre-viv); }
.seccion--oscura .enlace-flecha:hover { color: #fff; }

.grupo-botones { display: flex; flex-wrap: wrap; gap: 0.85rem; }

/* ------------------------------------------------------ Skip / a11y --- */
.saltar {
  position: absolute;
  left: 1rem;
  top: -100px;
  z-index: 999;
  background: var(--ocre);
  color: #fff;
  padding: 0.8rem 1.2rem;
  font-family: var(--font-display);
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  font-size: var(--step--1);
  text-decoration: none;
  transition: top 0.2s var(--ease);
}
.saltar:focus { top: 1rem; }

.solo-lectores {
  position: absolute !important;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap; border: 0;
}

/* ------------------------------------------------------------- Header - */
.sitio-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
  transition: box-shadow 0.3s var(--ease), background 0.3s var(--ease);
}
.sitio-header.scrolled { box-shadow: 0 1px 0 var(--line), 0 12px 32px -24px rgba(0, 0, 0, 0.5); }

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--gap);
  min-height: 5rem;
}

.marca {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  color: var(--c-900);
  flex: none;
}
.marca__mark { width: 34px; height: 34px; flex: none; }
.marca__txt { display: flex; flex-direction: column; line-height: 1; }
.marca__nombre {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.06rem;
  letter-spacing: 0.02em;
  text-transform: uppercase;
}
.marca__sub {
  font-size: 0.6rem;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--c-500);
  margin-top: 5px;
}

.nav-principal { display: none; }
.nav-lista {
  display: flex;
  align-items: center;
  gap: clamp(1rem, 2vw, 2rem);
  list-style: none;
  margin: 0;
  padding: 0;
}
.nav-lista a {
  font-family: var(--font-display);
  font-size: var(--step--1);
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--c-700);
  padding: 0.4rem 0;
  position: relative;
  display: inline-block;
  transition: color 0.3s var(--ease);
}
.nav-lista a::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: -2px;
  height: 2px;
  background: var(--ocre);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.35s var(--ease);
}
.nav-lista a:hover { color: var(--c-900); }
.nav-lista a:hover::after,
.nav-lista a[aria-current="page"]::after { transform: scaleX(1); }
.nav-lista a[aria-current="page"] { color: var(--c-900); }

.header-cta { display: none; }

.hamburguesa {
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 46px; height: 46px;
  padding: 0 10px;
  background: transparent;
  border: 1px solid var(--borde-control);
  cursor: pointer;
  flex: none;
}
.hamburguesa:hover { border-color: var(--borde-control-hover); }
.hamburguesa span {
  display: block;
  height: 2px;
  background: var(--c-900);
  transition: transform 0.35s var(--ease), opacity 0.2s var(--ease);
}
.hamburguesa[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburguesa[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.hamburguesa[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.panel-movil {
  position: fixed;
  inset: 5rem 0 0 0;
  background: var(--c-900);
  color: #fff;
  padding: clamp(1.5rem, 5vw, 2.5rem);
  transform: translateY(-102%);
  transition: transform 0.45s var(--ease), visibility 0.45s;
  visibility: hidden;
  overflow-y: auto;
  z-index: 99;
  display: flex;
  flex-direction: column;
  gap: 2rem;
}
.panel-movil.abierto { transform: translateY(0); visibility: visible; }
.panel-movil ul { list-style: none; margin: 0; padding: 0; }
.panel-movil li { border-bottom: 1px solid rgba(255, 255, 255, 0.13); margin: 0; }
.panel-movil a {
  display: flex;
  align-items: baseline;
  gap: 1rem;
  padding: 1.05rem 0;
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 7vw, 2.1rem);
  font-weight: 600;
  letter-spacing: -0.02em;
  text-decoration: none;
  color: #fff;
}
.panel-movil a .idx {
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  color: var(--ocre-viv);
  font-variant-numeric: tabular-nums;
}
.panel-movil a[aria-current="page"] { color: var(--ocre-viv); }
.panel-movil__pie {
  margin-top: auto;
  font-size: var(--step--1);
  color: var(--c-400);
  display: grid;
  gap: 0.5rem;
}
.panel-movil__pie a { font-size: var(--step-0); padding: 0; color: var(--c-200); }

@media (min-width: 1060px) {
  .nav-principal { display: block; }
  .header-cta { display: inline-flex; }
  .hamburguesa { display: none; }
  .panel-movil { display: none; }
}

/* --------------------------------------------------------------- Hero - */
.hero {
  position: relative;
  background: var(--c-900);
  color: #fff;
  overflow: hidden;
  isolation: isolate;
}
.hero__media {
  position: absolute;
  inset: 0;
  z-index: -2;
}
.hero__media img {
  width: 100%; height: 100%;
  object-fit: cover;
  object-position: center;
}
.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    linear-gradient(to right, rgba(11, 13, 16, 0.9) 0%, rgba(11, 13, 16, 0.62) 45%, rgba(11, 13, 16, 0.25) 100%),
    linear-gradient(to top, rgba(11, 13, 16, 0.85) 0%, transparent 55%);
}
.hero__inner {
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  min-height: min(88vh, 860px);
  padding-block: clamp(6rem, 14vh, 9rem) clamp(2rem, 5vw, 3.5rem);
}
.hero__eyebrow {
  font-family: var(--font-display);
  font-size: var(--step--1);
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--ocre-viv);
  font-weight: 600;
  margin: 0 0 1.4rem;
  display: flex;
  align-items: center;
  gap: 0.85rem;
}
.hero__eyebrow::before { content: ""; width: 2.75rem; height: 2px; background: var(--ocre-viv); }
.hero h1 {
  font-size: var(--step-5);
  font-weight: 600;
  max-width: 17ch;
  margin-bottom: 1.4rem;
  letter-spacing: -0.035em;
}
.hero h1 em { font-style: normal; color: var(--ocre-viv); }
.hero__texto { max-width: 46ch; color: var(--c-200); font-size: var(--step-1); margin-bottom: 2rem; }

.hero__ficha {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 1px;
  background: rgba(255, 255, 255, 0.18);
  border: 1px solid rgba(255, 255, 255, 0.18);
  margin-top: clamp(2.5rem, 6vw, 4rem);
}
.hero__ficha > div {
  background: rgba(10, 12, 15, 0.55);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  padding: 1.1rem 1.2rem;
}
.hero__ficha dt {
  font-size: 0.66rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--c-400);
  margin-bottom: 0.35rem;
}
.hero__ficha dd {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: var(--step-1);
  letter-spacing: -0.02em;
  color: #fff;
}

/* Hero interno (páginas secundarias) */
.hero-pagina {
  background: var(--c-900);
  color: #fff;
  position: relative;
  overflow: hidden;
  isolation: isolate;
}
.hero-pagina__media { position: absolute; inset: 0; z-index: -2; }
.hero-pagina__media img { width: 100%; height: 100%; object-fit: cover; }
.hero-pagina::after {
  content: "";
  position: absolute; inset: 0; z-index: -1;
  background: linear-gradient(105deg, rgba(12, 14, 17, 0.94) 12%, rgba(12, 14, 17, 0.7) 62%, rgba(12, 14, 17, 0.42) 100%);
}
.hero-pagina__inner {
  padding-block: clamp(3.5rem, 10vw, 7rem);
  display: grid;
  gap: var(--gap);
}
@media (min-width: 900px) {
  .hero-pagina__inner { grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.85fr); align-items: end; }
}
.hero-pagina h1 { max-width: 16ch; margin-bottom: 0; }
.hero-pagina .lead { color: var(--c-300); }

/* Migas */
.migas {
  font-size: var(--step--1);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-family: var(--font-display);
  color: var(--c-400);
  margin-bottom: 1.5rem;
}
.migas ol { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 0.5rem; }
.migas li { margin: 0; display: flex; gap: 0.5rem; align-items: center; }
.migas li + li::before { content: "/"; color: var(--c-600); }
.migas a { color: var(--c-300); text-decoration: none; }
.migas a:hover { color: var(--ocre-viv); }
.migas [aria-current] { color: #fff; }

/* -------------------------------------------------------------- Cifras - */
.cifras {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}
.seccion--oscura .cifras { background: rgba(255, 255, 255, 0.14); border-color: rgba(255, 255, 255, 0.14); }
.cifra {
  background: var(--blanco);
  padding: clamp(1.5rem, 3vw, 2.5rem) clamp(1.1rem, 2.5vw, 2rem);
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}
.seccion--oscura .cifra { background: var(--c-900); }
.cifra__valor {
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 6vw, 4rem);
  font-weight: 600;
  letter-spacing: -0.045em;
  line-height: 0.95;
  font-variant-numeric: tabular-nums;
  color: var(--c-900);
}
.seccion--oscura .cifra__valor { color: #fff; }
.cifra__valor .suf { color: var(--ocre); font-size: 0.55em; margin-left: 0.1em; vertical-align: 0.35em; }
.seccion--oscura .cifra__valor .suf { color: var(--ocre-viv); }
.cifra__label {
  font-size: var(--step--1);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
  font-family: var(--font-display);
  font-weight: 600;
}
.seccion--oscura .cifra__label { color: var(--c-400); }
.cifra__nota { font-size: var(--step--1); color: var(--c-500); }
@media (min-width: 860px) {
  .cifras { grid-template-columns: repeat(4, minmax(0, 1fr)); }
}

/* ------------------------------------------------------------ Tarjetas - */
.rejilla {
  display: grid;
  gap: var(--gap);
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 300px), 1fr));
}
.rejilla--2 { grid-template-columns: repeat(auto-fit, minmax(min(100%, 380px), 1fr)); }
.rejilla--3 { grid-template-columns: repeat(auto-fit, minmax(min(100%, 290px), 1fr)); }

.figura {
  position: relative;
  overflow: hidden;
  background: var(--c-150);
  aspect-ratio: 4 / 3;
}
.figura img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 0.9s var(--ease);
}
.figura--alta { aspect-ratio: 3 / 4; }
.figura--panoramica { aspect-ratio: 21 / 9; }
.figura--cuadrada { aspect-ratio: 1 / 1; }
.figura--ancha { aspect-ratio: 16 / 9; }

/* Tarjeta de proyecto */
.proyecto-card {
  display: flex;
  flex-direction: column;
  text-decoration: none;
  color: inherit;
  background: var(--blanco);
  border: 1px solid var(--line);
  transition: border-color 0.4s var(--ease), transform 0.4s var(--ease), box-shadow 0.4s var(--ease);
}
.proyecto-card:hover { border-color: var(--c-900); transform: translateY(-4px); box-shadow: 0 26px 50px -38px rgba(0, 0, 0, 0.75); }
.proyecto-card:hover .figura img { transform: scale(1.06); }
.proyecto-card__badge {
  position: absolute;
  left: 0; top: 0;
  background: rgba(19, 21, 25, 0.88);
  color: #fff;
  font-family: var(--font-display);
  font-size: 0.66rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  padding: 0.45rem 0.85rem;
  z-index: 2;
}
.proyecto-card__cuerpo {
  padding: clamp(1.1rem, 2.4vw, 1.6rem);
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
  flex: 1;
  border-top: 1px solid var(--line);
}
.proyecto-card h3 { font-size: var(--step-1); margin: 0; }
.proyecto-card__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem 1rem;
  font-size: var(--step--1);
  color: var(--muted);
  letter-spacing: 0.05em;
  margin: 0;
  list-style: none;
  padding: 0;
}
.proyecto-card__meta li { margin: 0; display: flex; align-items: center; gap: 0.4rem; }
.proyecto-card__meta li + li::before { content: ""; width: 3px; height: 3px; background: var(--ocre); flex: none; }
.proyecto-card__ver {
  margin-top: auto;
  padding-top: 0.9rem;
  font-family: var(--font-display);
  font-size: var(--step--1);
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ocre-txt);
  display: flex;
  align-items: center;
  gap: 0.5rem;
  transition: gap 0.3s var(--ease);
}
.proyecto-card:hover .proyecto-card__ver { gap: 0.95rem; }

/* Tarjeta destacada horizontal */
.destacado {
  display: grid;
  gap: 0;
  border: 1px solid var(--line);
  background: var(--blanco);
  text-decoration: none;
  color: inherit;
  overflow: hidden;
}
@media (min-width: 900px) {
  .destacado { grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr); }
  .destacado .figura { aspect-ratio: auto; height: 100%; min-height: 420px; }
}
.destacado__cuerpo {
  padding: clamp(1.5rem, 3.5vw, 3rem);
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 1rem;
}
.destacado:hover .figura img { transform: scale(1.05); }

/* Servicio */
.servicio {
  background: var(--blanco);
  border: 1px solid var(--line);
  padding: clamp(1.4rem, 3vw, 2.25rem);
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
  position: relative;
  transition: border-color 0.4s var(--ease), transform 0.4s var(--ease);
}
.servicio::before {
  content: "";
  position: absolute;
  left: -1px; top: -1px; bottom: -1px;
  width: 3px;
  background: var(--ocre);
  transform: scaleY(0);
  transform-origin: top;
  transition: transform 0.5s var(--ease);
}
.servicio:hover { border-color: var(--borde-control-hover); transform: translateY(-3px); }
.servicio:focus-visible { border-color: var(--borde-control-hover); }
.servicio:hover::before, .servicio:focus-visible::before { transform: scaleY(1); }
.servicio__num {
  font-family: var(--font-display);
  font-size: var(--step--1);
  font-weight: 700;
  letter-spacing: 0.2em;
  color: var(--ocre-txt);
}
.servicio h3 { margin: 0; }
.servicio ul {
  list-style: none;
  padding: 0;
  margin: 0.3rem 0 0;
  display: grid;
  gap: 0.5rem;
  font-size: var(--step--1);
  color: var(--c-700);
}
.servicio ul li {
  margin: 0;
  padding-left: 1.35rem;
  position: relative;
}
.servicio ul li::before {
  content: "";
  position: absolute;
  left: 0; top: 0.62em;
  width: 8px; height: 1px;
  background: var(--ocre);
}
.servicio__icono { width: 44px; height: 44px; color: var(--c-900); }

/* El bloque .servicio también se usa como enlace (navegación entre obras) */
a.servicio { text-decoration: none; color: inherit; }
a.servicio:hover h3 { color: var(--ocre-txt); }

/* Lista técnica (dl) */
.ficha-tecnica {
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  margin: 0;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 170px), 1fr));
}
.ficha-tecnica > div { background: var(--blanco); padding: 1.1rem 1.25rem; }
.ficha-tecnica dt {
  font-size: 0.68rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--c-500);
  margin-bottom: 0.3rem;
  font-family: var(--font-display);
  font-weight: 600;
}
.ficha-tecnica dd {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: var(--step-1);
  letter-spacing: -0.02em;
}

/* ------------------------------------------------------------- Filtros - */
.barra-filtros {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.6rem;
  padding-block: 1.1rem;
  border-block: 1px solid var(--line);
  margin-bottom: clamp(2rem, 4vw, 3rem);
}
.barra-filtros__label {
  font-family: var(--font-display);
  font-size: var(--step--1);
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--c-500);
  margin-right: 0.6rem;
}
.filtro {
  font-family: var(--font-display);
  font-size: var(--step--1);
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 0.6rem 1.1rem;
  background: transparent;
  border: 1px solid var(--borde-control);
  color: var(--c-700);
  cursor: pointer;
  transition: all 0.3s var(--ease);
}
.filtro:hover { border-color: var(--c-900); color: var(--c-900); }
.filtro:focus-visible { border-color: var(--c-900); }
.filtro[aria-pressed="true"] {
  background: var(--c-900);
  border-color: var(--c-900);
  color: #fff;
}
.filtro .cuenta { opacity: 0.6; margin-left: 0.4rem; font-variant-numeric: tabular-nums; }
.conteo-resultados {
  margin-left: auto;
  font-size: var(--step--1);
  color: var(--c-500);
  font-variant-numeric: tabular-nums;
}

.proyecto-item { transition: opacity 0.4s var(--ease), transform 0.4s var(--ease); }
.proyecto-item[hidden] { display: none; }

.sin-resultados {
  border: 1px dashed var(--borde-control);
  padding: clamp(2rem, 5vw, 3.5rem);
  text-align: center;
  color: var(--muted);
}

/* -------------------------------------------------------------- Equipo - */
.miembro { display: flex; flex-direction: column; gap: 1rem; }
.miembro .figura { aspect-ratio: 4 / 5; border: 1px solid var(--line); }
.miembro:hover .figura img { transform: scale(1.05); }
.miembro h3 { margin: 0; font-size: var(--step-1); }
.miembro__rol {
  font-family: var(--font-display);
  font-size: var(--step--1);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ocre-txt);
  font-weight: 600;
  margin: 0;
}
.miembro__bio { font-size: var(--step--1); color: var(--c-600); margin: 0; }
.miembro__cred {
  font-size: 0.72rem;
  color: var(--c-500);
  letter-spacing: 0.06em;
  border-top: 1px solid var(--line);
  padding-top: 0.6rem;
  margin: 0;
}

/* -------------------------------------------------------------- Valores - */
.valor {
  border-top: 2px solid var(--c-900);
  padding-top: 1.1rem;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}
.valor__num {
  font-family: var(--font-display);
  font-size: var(--step--1);
  font-weight: 700;
  letter-spacing: 0.2em;
  color: var(--ocre-txt);
}
.valor h3 { margin: 0; font-size: var(--step-1); }
.valor p { font-size: var(--step--1); color: var(--c-600); }
.seccion--oscura .valor { border-top-color: var(--ocre-viv); }
.seccion--oscura .valor p { color: var(--c-300); }
.seccion--oscura .valor__num { color: var(--ocre-viv); }

/* -------------------------------------------------------------- Proceso - */
.proceso { display: grid; gap: 0; counter-reset: paso; }
.proceso__paso {
  display: grid;
  gap: 0.75rem var(--gap);
  padding-block: clamp(1.5rem, 3vw, 2.25rem);
  border-top: 1px solid var(--line);
  align-items: start;
}
.proceso__paso:last-child { border-bottom: 1px solid var(--line); }
@media (min-width: 800px) {
  .proceso__paso { grid-template-columns: 5.5rem minmax(0, 1fr) minmax(0, 1.35fr); }
}
.proceso__n {
  font-family: var(--font-display);
  font-size: var(--step-2);
  font-weight: 600;
  color: var(--ocre);
  letter-spacing: -0.03em;
  line-height: 1;
}
.proceso__paso h3 { margin: 0; font-size: var(--step-1); }
.proceso__paso p { margin: 0; color: var(--c-600); font-size: var(--step-0); }
.seccion--oscura .proceso__paso { border-color: rgba(255, 255, 255, 0.14); }
.seccion--oscura .proceso__paso p { color: var(--c-300); }

/* ------------------------------------------------------------ Timeline - */
.linea-tiempo { display: grid; gap: 0; }
.hito {
  display: grid;
  gap: 0.4rem 1.5rem;
  padding-block: 1.4rem;
  border-top: 1px solid var(--line);
}
.hito:last-child { border-bottom: 1px solid var(--line); }
@media (min-width: 720px) { .hito { grid-template-columns: 7rem minmax(0, 1fr); } }
.hito__anio {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--step-1);
  color: var(--ocre-txt);
  font-variant-numeric: tabular-nums;
}
.hito h3 { margin: 0 0 0.25rem; font-size: var(--step-1); }
.hito p { margin: 0; color: var(--c-600); font-size: var(--step--1); }

/* ----------------------------------------------------------- Testimonio - */
.testimonio {
  border-left: 3px solid var(--ocre);
  padding-left: clamp(1.25rem, 3vw, 2.5rem);
}
.testimonio blockquote {
  margin: 0 0 1.25rem;
  font-family: var(--font-display);
  font-size: var(--step-2);
  font-weight: 500;
  line-height: 1.32;
  letter-spacing: -0.02em;
}
.testimonio figcaption { font-size: var(--step--1); color: var(--muted); letter-spacing: 0.04em; }
.testimonio figcaption strong { display: block; color: var(--fg); font-size: var(--step-0); letter-spacing: 0; }
.seccion--oscura .testimonio figcaption { color: var(--c-400); }
.seccion--oscura .testimonio figcaption strong { color: #fff; }

/* ------------------------------------------------------------ Galería - */
.galeria {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 320px), 1fr));
}
.galeria .figura { border: 1px solid var(--line); }
.galeria figure { margin: 0; }
.galeria figcaption {
  font-size: var(--step--1);
  color: var(--c-500);
  padding-top: 0.6rem;
  letter-spacing: 0.04em;
}
.galeria__grande { grid-column: 1 / -1; }
.galeria__grande .figura { aspect-ratio: 21 / 9; }

/* ------------------------------------------------------------ Formulario - */
.form-cotizacion {
  display: grid;
  gap: 1.15rem;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 240px), 1fr));
}
.campo { display: flex; flex-direction: column; gap: 0.45rem; }
.campo--full { grid-column: 1 / -1; }
.campo label {
  font-family: var(--font-display);
  font-size: var(--step--1);
  font-weight: 600;
  letter-spacing: 0.11em;
  text-transform: uppercase;
  color: var(--c-700);
}
.campo label .req { color: var(--ocre-txt); }
.campo input,
.campo select,
.campo textarea {
  font-family: inherit;
  font-size: var(--step-0);
  color: var(--fg);
  background: var(--blanco);
  border: 1px solid var(--borde-control);
  padding: 0.85rem 0.95rem;
  width: 100%;
  transition: border-color 0.25s var(--ease), box-shadow 0.25s var(--ease);
  border-radius: 0;
  -webkit-appearance: none;
  appearance: none;
}
.campo select {
  background-image: linear-gradient(45deg, transparent 50%, var(--c-600) 50%),
    linear-gradient(135deg, var(--c-600) 50%, transparent 50%);
  background-position: calc(100% - 20px) calc(50% + 2px), calc(100% - 14px) calc(50% + 2px);
  background-size: 6px 6px, 6px 6px;
  background-repeat: no-repeat;
  padding-right: 2.6rem;
}
.campo textarea { resize: vertical; min-height: 8rem; }
.campo input:hover, .campo select:hover, .campo textarea:hover { border-color: var(--borde-control-hover); }
.campo input:focus, .campo select:focus, .campo textarea:focus {
  outline: none;
  border-color: var(--ocre);
  box-shadow: 0 0 0 3px rgba(184, 117, 42, 0.18);
}
.campo .ayuda { font-size: 0.76rem; color: var(--c-500); }
.campo .error {
  font-size: 0.78rem;
  color: #a5231c;
  display: none;
  align-items: center;
  gap: 0.35rem;
  font-weight: 500;
}
.campo.invalido .error { display: flex; }
.campo.invalido input,
.campo.invalido select,
.campo.invalido textarea { border-color: #a5231c; background: #fdf6f5; }

.check {
  display: flex;
  gap: 0.7rem;
  align-items: flex-start;
  font-size: 0.82rem;
  color: var(--c-600);
  line-height: 1.5;
}
.check input { width: 1.15rem; height: 1.15rem; flex: none; margin-top: 0.15rem; accent-color: var(--ocre); }
.check.invalido { color: #a5231c; }

.form-exito {
  display: none;
  border: 1px solid var(--ocre);
  background: var(--ocre-soft);
  padding: clamp(1.25rem, 3vw, 2rem);
  gap: 1rem;
  align-items: flex-start;
}
.form-exito.visible { display: flex; }
.form-exito svg { flex: none; color: var(--ocre-txt); }
.form-exito h3 { margin: 0 0 0.35rem; font-size: var(--step-1); }
.form-exito p { margin: 0; font-size: var(--step--1); color: var(--c-700); }

/* Aviso de "los datos no llegaron a cargar" — distinto del éxito del
   formulario, pero con el mismo lenguaje visual del sitio. Oculto por
   `hidden` nativo: sólo un script lo revela cuando detecta que la ficha
   de obra se quedó vacía sin explicación. */
.aviso-error {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
  border: 1px solid var(--borde-control);
  background: var(--hueso);
  padding: clamp(1.25rem, 3vw, 2rem);
}
.aviso-error[hidden] { display: none; }
.aviso-error svg { flex: none; color: var(--c-700); margin-top: 0.15rem; }
.aviso-error h3 { margin: 0 0 0.35rem; font-size: var(--step-1); }
.aviso-error p { margin: 0; font-size: var(--step--1); color: var(--c-700); }
.aviso-error a { color: var(--ocre-txt); }

/* Bloque contacto */
.bloque-contacto {
  display: grid;
  gap: var(--gap);
}
@media (min-width: 980px) {
  .bloque-contacto { grid-template-columns: minmax(0, 1fr) minmax(0, 1.25fr); gap: clamp(2rem, 5vw, 4.5rem); }
}
.datos-contacto { display: grid; gap: 1.5rem; align-content: start; }
.dato-contacto { border-top: 1px solid var(--line); padding-top: 0.9rem; }
.dato-contacto h3 {
  font-size: var(--step--1);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--c-500);
  margin: 0 0 0.4rem;
}
.dato-contacto p, .dato-contacto a { font-size: var(--step-0); margin: 0; color: var(--fg); text-decoration: none; }
.dato-contacto a:hover { color: var(--ocre-txt); }
.datos-contacto .figura { border: 1px solid var(--line); background: var(--c-900); }
.datos-contacto .figura svg { width: 100%; height: 100%; object-fit: cover; }

/* --------------------------------------------------------------- CTA --- */
.cta-final {
  background: var(--c-900);
  color: #fff;
  position: relative;
  overflow: hidden;
  isolation: isolate;
}
.cta-final__media { position: absolute; inset: 0; z-index: -2; opacity: 0.35; }
.cta-final__media img { width: 100%; height: 100%; object-fit: cover; }
.cta-final::after {
  content: "";
  position: absolute; inset: 0; z-index: -1;
  background: linear-gradient(100deg, rgba(19, 21, 25, 0.96) 25%, rgba(19, 21, 25, 0.72) 100%);
}
.cta-final__inner {
  padding-block: clamp(3.5rem, 8vw, 6.5rem);
  display: grid;
  gap: var(--gap);
  align-items: center;
}
@media (min-width: 900px) {
  .cta-final__inner { grid-template-columns: minmax(0, 1.25fr) minmax(0, 0.85fr); }
}
.cta-final h2 { color: #fff; max-width: 18ch; }
.cta-final p { color: var(--c-300); max-width: 46ch; }

/* -------------------------------------------------------------- Footer - */
.sitio-footer {
  background: var(--c-900);
  color: var(--c-300);
  border-top: 3px solid var(--ocre);
  font-size: var(--step--1);
}
.footer-grid {
  display: grid;
  gap: clamp(2rem, 4vw, 3rem);
  padding-block: clamp(3rem, 6vw, 4.5rem);
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 220px), 1fr));
}
.sitio-footer h3 {
  font-size: 0.72rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--c-500);
  margin: 0 0 1.1rem;
  font-weight: 600;
}
.sitio-footer ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 0.6rem; }
.sitio-footer a { color: var(--c-200); text-decoration: none; transition: color 0.25s var(--ease); }
.sitio-footer a:hover { color: var(--ocre-viv); }
.footer-marca .marca { color: #fff; }
.footer-marca .marca__sub { color: var(--c-500); }
.footer-marca p { margin: 1.2rem 0 0; color: var(--c-400); max-width: 34ch; }
.footer-legal {
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  padding-block: 1.5rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.5rem;
  justify-content: space-between;
  color: var(--c-500);
  font-size: 0.76rem;
}
.sellos { display: flex; flex-wrap: wrap; gap: 0.6rem; margin-top: 1.25rem; }
.sello {
  border: 1px solid rgba(255, 255, 255, 0.22);
  padding: 0.4rem 0.7rem;
  font-size: 0.66rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  font-family: var(--font-display);
  font-weight: 600;
  color: var(--c-300);
}

/* Franja de certificaciones / clientes */
.franja-logos {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: clamp(1.5rem, 5vw, 3.5rem);
  justify-content: space-between;
  padding-block: clamp(1.5rem, 3vw, 2.25rem);
}
.franja-logos__txt {
  font-size: var(--step--1);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--c-500);
  font-family: var(--font-display);
  font-weight: 600;
  flex: none;
}
.franja-logos ul {
  display: flex;
  flex-wrap: wrap;
  gap: clamp(1.25rem, 4vw, 3rem);
  list-style: none;
  margin: 0;
  padding: 0;
  align-items: center;
}
.franja-logos li {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(0.85rem, 1.6vw, 1.05rem);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--c-400);
  transition: color 0.3s var(--ease);
  white-space: nowrap;
}
.franja-logos li:hover { color: var(--c-800); }

/* --------------------------------------------------------- Animaciones - */
/* El estado oculto sólo se aplica si JavaScript está activo (la clase `js` la
   pone un script en línea en el <head>). Sin JS, todo el contenido se ve. */
.js .aparece {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 0.75s var(--ease), transform 0.75s var(--ease);
}
.js .aparece.visible { opacity: 1; transform: none; }
.aparece[data-retraso="1"] { transition-delay: 0.08s; }
.aparece[data-retraso="2"] { transition-delay: 0.16s; }
.aparece[data-retraso="3"] { transition-delay: 0.24s; }
.aparece[data-retraso="4"] { transition-delay: 0.32s; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
  .js .aparece { opacity: 1; transform: none; }
  .figura img { transition: none; }
}

/* ----------------------------------------------------------- Utilidades - */
.mt-0 { margin-top: 0; }
.mt-1 { margin-top: clamp(1rem, 2vw, 1.5rem); }
.mt-2 { margin-top: clamp(1.75rem, 3.5vw, 2.75rem); }
.mt-3 { margin-top: clamp(2.5rem, 5vw, 4rem); }
.mb-2 { margin-bottom: clamp(1.75rem, 3.5vw, 2.75rem); }
.texto-muted { color: var(--muted); }
.max-60 { max-width: 60ch; }
.divisor { border-top: 1px solid var(--line); margin-block: clamp(2rem, 5vw, 4rem); }
.dos-col { display: grid; gap: var(--gap); }
@media (min-width: 900px) {
  .dos-col { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: clamp(2rem, 5vw, 4.5rem); }
  .dos-col--asim { grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr); }
}
.sticky-col { position: sticky; top: 6.5rem; align-self: start; }
@media (max-width: 899px) { .sticky-col { position: static; } }

.tabla-datos {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--step--1);
}
.tabla-datos th,
.tabla-datos td {
  text-align: left;
  padding: 0.85rem 0.75rem 0.85rem 0;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}
.tabla-datos th {
  font-family: var(--font-display);
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  font-size: 0.7rem;
  color: var(--c-500);
  white-space: nowrap;
  width: 38%;
}