/* Tau Construcciones — hoja de estilos del sitio. Identidad v.02 «Corte».
   Valores tomados de comercial/marca/tokens/tokens.css (modo claro). El sitio es solo claro:
   no se importa el archivo de tokens porque su bloque de modo oscuro cambiaría los colores. */

@font-face {
  font-family: "Epilogue";
  src: url("../assets/fonts/Epilogue-var-latin.woff2") format("woff2");
  font-weight: 100 900;
  font-style: normal;
  font-display: swap;
}

:root {
  color-scheme: light;
  --marino: #0b2545;      /* --bi-brand-1 */
  --real: #2f6fd6;        /* --bi-brand-2 */
  --real-osc: #215bb8;    /* --bi-accent-700, hover */
  --real-claro: #5790ed;  /* --bi-accent-500, solo sobre marino y en cifras grandes */
  --tinta: #151c26;       /* --bi-text */
  --suave: #4e5660;       /* --bi-text-muted */
  --gris: #6c747d;
  --linea: #e4e6e9;       /* --bi-border */
  --fondo-az: #f3f8fe;    /* --bi-primary-50 */
  --superficie: #f9fafc;
  --blanco: #fff;
  --linea-osc: #33537c;   /* --bi-primary-800 */
  --txt-osc: #d4dfee;     /* --bi-primary-200, texto sobre marino */
  --max: 1120px;
  --f: "Epilogue", system-ui, -apple-system, "Segoe UI", Calibri, Arial, sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 84px; -webkit-text-size-adjust: 100%; }
body { margin: 0; color: var(--tinta); background: var(--blanco); font-family: var(--f); font-size: 18px; line-height: 1.6; font-feature-settings: "tnum"; }
h1, h2, h3 { font-family: var(--f); line-height: 1.15; margin: 0; letter-spacing: -.01em; color: var(--marino); }
p { margin: 0; }
a { color: var(--real); text-underline-offset: 3px; }
a:hover { color: var(--real-osc); }
img, svg { max-width: 100%; }
:focus-visible { outline: 3px solid var(--real-claro); outline-offset: 3px; border-radius: 2px; }
.wrap { max-width: var(--max); margin: 0 auto; padding: 0 20px; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.skip { position: absolute; left: 12px; top: -60px; z-index: 20; background: var(--marino); color: #fff; padding: 12px 16px; border-radius: 4px; font-weight: 600; }
.skip:focus { top: 12px; color: #fff; }

/* Encabezado */
header.top { background: var(--blanco); border-bottom: 1px solid var(--linea); position: sticky; top: 0; z-index: 10; }
.bar { display: flex; align-items: center; justify-content: space-between; gap: 16px; min-height: 68px; }
.logo { display: block; line-height: 0; }
.logo img { height: 42px; width: auto; display: block; }
nav.main ul { display: flex; align-items: center; gap: 26px; list-style: none; margin: 0; padding: 0; font-size: 16px; }
nav.main a { color: var(--tinta); text-decoration: none; padding: 8px 0; display: inline-block; }
nav.main a:hover { color: var(--marino); text-decoration: underline; text-decoration-color: var(--real); text-decoration-thickness: 2px; text-underline-offset: 6px; }
nav.main a.btn { color: #fff; }

.btn { display: inline-block; font: 700 16px/1 var(--f); text-decoration: none; padding: 15px 22px; border-radius: 4px; border: 2px solid transparent; cursor: pointer; }
.btn.p { background: var(--real); color: #fff; }
.btn.p:hover { background: var(--real-osc); color: #fff; }
.btn.s { border-color: rgba(255,255,255,.6); color: #fff; }
.btn.s:hover { background: rgba(255,255,255,.1); color: #fff; }
.btn.n { background: var(--marino); color: #fff; padding: 12px 18px; font-size: 15px; }
.btn.n:hover { background: var(--real-osc); color: #fff; }

/* Inicio */
.hero { background: linear-gradient(100deg, rgba(11,37,69,.94) 0%, rgba(11,37,69,.8) 45%, rgba(11,37,69,.5) 100%), url("../assets/fotos/hero-patio.jpg") center / cover no-repeat, var(--marino); color: #fff; position: relative; overflow: hidden; }
.hero::before { content: ""; position: absolute; inset: 0 0 auto 0; height: 6px; background: var(--real); }
.hero .mark { display: none; }
.hero .in { display: grid; grid-template-columns: 1.15fr .85fr; gap: 48px; align-items: center; padding: 112px 20px 120px; position: relative; }
.eyebrow { font: 700 14px/1.2 var(--f); letter-spacing: .12em; text-transform: uppercase; color: #b4c9e5; margin-bottom: 18px; }
.hero h1 { color: #fff; font-size: clamp(34px, 5.2vw, 58px); font-weight: 700; }
.hero h1 em { font-style: normal; color: #8aaedc; }
.hero .lead { font-size: 21px; color: var(--txt-osc); max-width: 34ch; margin: 22px 0 32px; }
.cta { display: flex; flex-wrap: wrap; gap: 12px; }
.ficha { background: var(--blanco); color: var(--tinta); border-radius: 6px; padding: 26px 26px 22px; box-shadow: 0 18px 40px rgba(0,0,0,.28); border-top: 6px solid var(--real); }
.ficha .t { font: 700 13px/1.2 var(--f); letter-spacing: .1em; text-transform: uppercase; color: var(--suave); margin-bottom: 6px; }
.ficha h2 { font-size: 24px; margin-bottom: 14px; }
.ficha ul { list-style: none; margin: 0; padding: 0; }
.ficha li { display: flex; gap: 12px; padding: 11px 0; border-top: 1px solid var(--linea); font-size: 17px; line-height: 1.5; }
.ficha li::before { content: ""; flex: 0 0 22px; height: 22px; margin-top: 2px; border-radius: 50%; background: var(--real) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23fff' stroke-width='3.4' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M6 12.5l4 4 8-9'/%3E%3C/svg%3E") center/14px no-repeat; }
.ficha .nota { font-size: 14px; color: var(--suave); margin-top: 12px; }

/* Secciones */
section { padding: 84px 0; }
.head { max-width: 680px; margin-bottom: 44px; }
.head h2 { font-size: clamp(28px, 3.6vw, 40px); font-weight: 700; }
.head p { color: var(--suave); margin-top: 14px; }
.rule { width: 56px; height: 6px; background: var(--real); margin-bottom: 18px; }
.grid3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }

.pil { background: var(--fondo-az); }
.card { background: var(--blanco); border: 1px solid var(--linea); border-radius: 6px; padding: 28px 26px; }
.pil .card { border-top: 6px solid var(--marino); }
.card .num { font: 700 44px/1 var(--f); color: var(--real); margin-bottom: 12px; }
.card h3 { font-size: 24px; margin-bottom: 10px; }
.card p { color: #2f3640; font-size: 17px; }

.serv .grid3 { gap: 0; border-top: 1px solid var(--linea); border-left: 1px solid var(--linea); }
.serv .it { padding: 28px 26px 30px; border-right: 1px solid var(--linea); border-bottom: 1px solid var(--linea); }
.serv .it h3 { font-size: 22px; margin-bottom: 8px; }
.serv .it p { color: var(--suave); font-size: 17px; }
.serv .ic { width: 34px; height: 34px; margin-bottom: 16px; color: var(--marino); }
.serv .nota { font-size: 16px; color: var(--suave); margin-top: 22px; max-width: 70ch; }

/* Experiencia del equipo */
.exp { background: var(--superficie); border-top: 1px solid var(--linea); border-bottom: 1px solid var(--linea); }
.aviso { background: var(--blanco); border-left: 6px solid var(--real); padding: 18px 22px; margin-bottom: 36px; max-width: 820px; }
.aviso strong { color: var(--marino); }
.aviso p + p { margin-top: 8px; font-size: 16px; color: var(--suave); }
.casos { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; list-style: none; margin: 0; padding: 0; }
.caso { background: var(--blanco); border: 1px solid var(--linea); border-radius: 6px; overflow: hidden; display: flex; flex-direction: column; }
.caso:last-child:nth-child(odd) { grid-column: 1 / -1; }
/* Marcador de foto: ver assets/fotos/LEEME.txt para reemplazarlo por una imagen */
.foto { margin: 0; aspect-ratio: 16 / 6; background: linear-gradient(135deg, var(--marino) 0%, #13284a 100%); position: relative; overflow: hidden; }
.foto::after { content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 5px; background: var(--real); }
.foto svg { position: absolute; right: 22px; top: 50%; height: 140%; width: auto; transform: translateY(-50%); opacity: .12; }
.foto img { width: 100%; height: 100%; object-fit: cover; display: block; }
.caso .cuerpo { padding: 24px 26px 26px; }
.caso .tipo { font: 700 12px/1.3 var(--f); letter-spacing: .1em; text-transform: uppercase; color: var(--suave); margin-bottom: 8px; }
.caso h3 { font-size: 22px; margin-bottom: 14px; }
.caso dl { margin: 0; font-size: 16px; line-height: 1.5; }
.caso dl div { display: grid; grid-template-columns: 120px 1fr; gap: 12px; padding: 9px 0; border-top: 1px solid var(--linea); }
.caso dt { font-weight: 700; color: var(--marino); }
.caso dd { margin: 0; color: #2f3640; }

/* Método */
.met { background: var(--marino); color: #fff; }
.met h2, .met h3 { color: #fff; }
.met .head p { color: var(--txt-osc); }
.steps { display: grid; grid-template-columns: repeat(4, 1fr); counter-reset: s; list-style: none; margin: 0; padding: 0; }
.step { padding: 0 26px 0 0; position: relative; }
.step::before { counter-increment: s; content: "0" counter(s); font: 700 44px/1 var(--f); color: var(--real-claro); display: block; margin-bottom: 14px; }
.step::after { content: ""; position: absolute; left: 0; right: 20px; top: 60px; border-top: 1px solid var(--linea-osc); }
.step h3 { font-size: 22px; margin: 30px 0 8px; }
.step p { color: var(--txt-osc); font-size: 17px; }

/* Contacto */
.contacto { background: var(--fondo-az); }
.ctc { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.ctc a.big { display: block; text-decoration: none; background: var(--blanco); border: 1px solid var(--linea); border-radius: 6px; padding: 26px; color: var(--marino); }
.ctc a.big:hover { border-color: var(--real); }
.ctc .lab { font: 700 13px/1.2 var(--f); letter-spacing: .1em; text-transform: uppercase; color: var(--suave); }
.ctc .val { font: 700 clamp(20px, 2.8vw, 28px)/1.2 var(--f); margin-top: 10px; overflow-wrap: anywhere; }
.ctc .pie { grid-column: 1 / -1; color: var(--suave); font-size: 17px; }

/* Pie */
footer { background: var(--marino); color: var(--txt-osc); padding: 40px 0; font-size: 15px; line-height: 1.6; }
footer .f { display: flex; flex-wrap: wrap; gap: 20px 40px; align-items: center; justify-content: space-between; }
footer img { height: 38px; width: auto; display: block; }
footer a { color: #fff; }
footer a:hover { color: #b4c9e5; }
footer ul { list-style: none; margin: 0; padding: 0; display: flex; gap: 20px; }

/* Páginas de texto (privacidad, 404) */
.doc { padding: 64px 0 80px; }
.doc .col { max-width: 760px; }
.doc h1 { font-size: clamp(30px, 4vw, 42px); margin-bottom: 8px; }
.doc .fecha { color: var(--suave); font-size: 16px; margin-bottom: 36px; }
.doc h2 { font-size: 24px; margin: 36px 0 10px; }
.doc p, .doc li { color: #2f3640; }
.doc p + p { margin-top: 12px; }
.doc ul { padding-left: 22px; margin: 10px 0 0; }
.doc li + li { margin-top: 6px; }

/* Móvil y tabletas */
@media (max-width: 900px) {
  .grid3 { grid-template-columns: 1fr; }
  .serv .grid3 { grid-template-columns: 1fr 1fr; }
  .steps { grid-template-columns: 1fr 1fr; row-gap: 36px; }
  .casos { grid-template-columns: 1fr; }
  section { padding: 64px 0; }
}
@media (max-width: 860px) {
  .hero .in { grid-template-columns: 1fr; padding: 56px 20px 64px; gap: 36px; }
  .hero .mark { width: 360px; }
}
@media (max-width: 760px) {
  html { scroll-padding-top: 118px; }
  .bar { flex-wrap: wrap; padding-top: 10px; padding-bottom: 0; gap: 4px 16px; }
  .logo img { height: 36px; }
  nav.main { order: 3; flex: 0 0 100%; margin: 0 -20px; padding: 0 20px; overflow-x: auto; scrollbar-width: none; }
  nav.main::-webkit-scrollbar { display: none; }
  nav.main ul { gap: 22px; white-space: nowrap; font-size: 15px; }
  nav.main li.cta-li { display: none; }
  nav.main a { padding: 12px 0; }
  .btn.mov { display: inline-block; }
  .ctc { grid-template-columns: 1fr; }
  .serv .grid3 { grid-template-columns: 1fr; }
  body { font-size: 17px; }
  .hero .lead { font-size: 19px; }
  .caso dl div { grid-template-columns: 1fr; gap: 2px; }
}
@media (max-width: 520px) {
  .steps { grid-template-columns: 1fr; }
  .step::after { right: 0; }
}
@media (min-width: 761px) { .btn.mov { display: none; } }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
@media print { header.top, .hero .mark, .skip { display: none; } body { font-size: 12pt; } section { padding: 24px 0; } }

/* Contenido catálogo v.03 */
.head p + p { margin-top: 10px; }
.sub { font-size: 24px; margin: 44px 0 18px; }
.pil .head + .sub { margin-top: 0; }
.lineas { display: grid; gap: 28px; }
.linea { display: grid; grid-template-columns: 300px 1fr; gap: 32px; border-top: 6px solid var(--marino); background: var(--blanco); border-left: 1px solid var(--linea); border-right: 1px solid var(--linea); border-bottom: 1px solid var(--linea); padding: 28px; }
.linea .letra { display: inline-block; font: 700 44px/1 var(--f); color: var(--real); margin-bottom: 10px; }
.linea h3 { font-size: 22px; margin-bottom: 10px; }
.linea .lt p { color: var(--suave); font-size: 16px; }
.tareas { margin: 0; font-size: 16px; line-height: 1.5; }
.tareas div { display: grid; grid-template-columns: 220px 1fr; gap: 14px; padding: 9px 0; border-top: 1px solid var(--linea); }
.tareas div:first-child { border-top: 0; padding-top: 0; }
.tareas dt { font-weight: 700; color: var(--marino); }
.tareas dd { margin: 0; color: #2f3640; }
.serv .nota { background: var(--fondo-az); border-left: 6px solid var(--real); padding: 18px 22px; color: #2f3640; margin-top: 28px; font-size: 17px; }
.clientes .card { border-top: 6px solid var(--marino); }
.casos-tip { margin: 0; padding-left: 22px; max-width: 70ch; }
.casos-tip li + li { margin-top: 8px; }
.steps.seis { grid-template-columns: repeat(3, 1fr); row-gap: 40px; }
.fichas { list-style: none; margin: 0; padding: 0; display: grid; gap: 14px; }
.fichas li { display: grid; grid-template-columns: 56px 1fr; gap: 16px; background: var(--blanco); border: 1px solid var(--linea); border-radius: 6px; padding: 22px 24px; }
.fichas .n { font: 700 36px/1 var(--f); color: var(--real); }
.fichas h3 { font-size: 21px; margin-bottom: 4px; }
.fichas .man { font: 700 13px/1.4 var(--f); letter-spacing: .06em; text-transform: uppercase; color: var(--suave); margin-bottom: 8px; }
.fichas p:last-child { color: #2f3640; font-size: 17px; }
.galeria { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.galeria li { aspect-ratio: 4 / 3; overflow: hidden; border-radius: 4px; background: var(--marino); }
.galeria img { width: 100%; height: 100%; object-fit: cover; display: block; }
@media (max-width: 900px) {
  .linea { grid-template-columns: 1fr; gap: 18px; }
  .steps.seis { grid-template-columns: 1fr 1fr; }
  .galeria { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 760px) { .tareas div { grid-template-columns: 1fr; gap: 2px; } .linea { padding: 22px 20px; } .fichas li { grid-template-columns: 40px 1fr; padding: 18px; } }
@media (max-width: 520px) { .steps.seis { grid-template-columns: 1fr; } }
nav.main a { white-space: nowrap; }
@media (max-width: 1100px) and (min-width: 761px) { nav.main ul { gap: 16px; font-size: 14.5px; } .logo img { height: 36px; } .btn.n { padding: 10px 14px; } }

/* Frases destacadas */
.frase { padding: 110px 0; background: var(--blanco); }
.frase.az { background: var(--fondo-az); }
.frase p { max-width: 24ch; font-size: clamp(28px, 4.6vw, 52px); font-weight: 700; line-height: 1.15; letter-spacing: -.015em; color: var(--marino); }
.frase p span { background: linear-gradient(var(--real), var(--real)) 0 100% / 100% 5px no-repeat; padding-bottom: 4px; }
.frase small { display: block; max-width: 56ch; margin-top: 26px; font-size: 19px; line-height: 1.55; color: var(--suave); font-weight: 400; letter-spacing: 0; }
@media (max-width: 860px) { .hero .in { padding: 64px 20px 72px; } .frase { padding: 72px 0; } }