/* CHIDELOP — Variante 1: «Plano técnico nocturno»
   Paleta: azul tinta #080533 · superficies #0D0B2E / #12103A · azul acero #17579E */

:root{
  --ink:#080533;
  --bg:#070429;
  --surface:#0D0B2E;
  --surface-2:#12103A;
  --line:#2A2760;
  --steel:#17579E;
  --steel-bright:#8FBBEC;
  --text:#F2F3F7;
  --muted:#C6C8D4;
  --font-d:"Barlow Condensed",sans-serif;
  --font-b:"Barlow",sans-serif;
}

*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  background:var(--bg);
  color:var(--text);
  font-family:var(--font-b);
  font-size:17px;
  line-height:1.55;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%}
a{color:var(--steel-bright)}
.wrap{width:min(1240px,100% - 3rem);margin-inline:auto}

/* ---------- retícula de plano (solo hero y banda de cierre) ---------- */
.blueprint{
  background-image:
    linear-gradient(rgba(143,187,236,.055) 1px,transparent 1px),
    linear-gradient(90deg,rgba(143,187,236,.055) 1px,transparent 1px),
    linear-gradient(rgba(143,187,236,.11) 1px,transparent 1px),
    linear-gradient(90deg,rgba(143,187,236,.11) 1px,transparent 1px);
  background-size:14px 14px,14px 14px,70px 70px,70px 70px;
}

/* ---------- regla con ticks (marca de cota) ---------- */
.ruler{
  height:14px;
  background:
    repeating-linear-gradient(90deg,var(--steel-bright) 0 1px,transparent 1px 14px) left bottom/100% 6px no-repeat,
    repeating-linear-gradient(90deg,var(--steel-bright) 0 1px,transparent 1px 70px) left bottom/100% 13px no-repeat,
    linear-gradient(var(--steel-bright),var(--steel-bright)) left bottom/100% 1px no-repeat;
  opacity:.55;
}
.ruler-sm{margin-bottom:.55rem}

/* ---------- encabezado ---------- */
.site-head{
  position:fixed;inset:0 0 auto 0;z-index:50;
  background:rgba(7,4,41,.94);
  border-bottom:1px solid var(--line);
}
.head-in{
  width:min(1240px,100% - 3rem);margin-inline:auto;
  display:flex;align-items:center;gap:1.5rem;
  min-height:76px;padding-block:.45rem;
}
.brand img{height:52px;width:auto}
.main-nav{display:flex;gap:1.6rem;margin-left:auto}
.main-nav a{
  color:var(--text);text-decoration:none;
  font-family:var(--font-d);font-weight:600;font-size:1.06rem;
  letter-spacing:.14em;text-transform:uppercase;padding:.3rem 0;
  border-bottom:2px solid transparent;
}
.main-nav a:hover,.main-nav a:focus-visible{border-bottom-color:var(--steel-bright)}
.lang-switch{display:flex;align-items:center;gap:.35rem;color:var(--muted);font-family:var(--font-d);font-weight:600;letter-spacing:.1em}
.lang-switch button{
  background:none;border:0;cursor:pointer;color:var(--muted);
  font:inherit;padding:.25rem .3rem;
}
.lang-switch button[aria-pressed="true"]{color:#fff;text-decoration:underline;text-underline-offset:4px;text-decoration-color:var(--steel-bright)}
.menu-btn{display:none;background:none;border:0;color:#fff;cursor:pointer;margin-left:auto;padding:.3rem}

/* ---------- hero ---------- */
.hero{position:relative;min-height:100svh;display:flex;align-items:flex-end;overflow:hidden;background-color:var(--ink)}
.hero-photo{position:absolute;inset:0}
.hero-photo img{width:100%;height:100%;object-fit:cover;object-position:center 62%}
.hero-shade{position:absolute;inset:0;background:linear-gradient(180deg,rgba(8,5,51,.62) 0%,rgba(8,5,51,.38) 42%,rgba(7,4,41,.94) 88%)}
.hero-in{position:relative;width:min(1240px,100% - 3rem);margin-inline:auto;padding:9.5rem 0 4.5rem}
.eyebrow{
  font-family:var(--font-d);font-weight:600;font-size:1.05rem;
  letter-spacing:.34em;text-transform:uppercase;color:var(--steel-bright);
  display:flex;align-items:center;gap:1rem;
}
.eyebrow::before{content:"";width:52px;height:1px;background:var(--steel-bright)}
.hero h1{
  font-family:var(--font-d);font-weight:700;text-transform:uppercase;
  font-size:clamp(2.9rem,7.2vw,6.2rem);line-height:.98;letter-spacing:.005em;
  max-width:13ch;margin-top:1.1rem;
}
.hero-lema{
  margin-top:1.4rem;font-size:clamp(1.15rem,2vw,1.45rem);font-weight:500;color:#fff;
  display:flex;align-items:center;gap:1rem;
}
.hero-lema::after{content:"";width:88px;height:1px;background:var(--steel)}
.hero-cta{display:flex;flex-wrap:wrap;gap:.9rem;margin-top:2.4rem}
.hero .ruler{position:absolute;left:0;right:0;bottom:0}

.btn{
  display:inline-block;font-family:var(--font-d);font-weight:600;
  font-size:1.08rem;letter-spacing:.16em;text-transform:uppercase;
  text-decoration:none;padding:.85rem 1.9rem;cursor:pointer;
}
.btn-solid{background:var(--steel);color:#fff;border:1px solid var(--steel)}
.btn-solid:hover,.btn-solid:focus-visible{background:#1D65B4}
.btn-line{background:transparent;color:#fff;border:1px solid var(--muted)}
.btn-line:hover,.btn-line:focus-visible{border-color:#fff}

/* ---------- secciones ---------- */
.section{padding:6.5rem 0}
.section-alt{background:var(--surface)}
.sec-head{display:flex;align-items:flex-start;gap:1.4rem;margin-bottom:3.2rem}
.sec-index{
  font-family:var(--font-d);font-weight:700;font-size:1.3rem;color:var(--steel-bright);
  border:1px solid var(--line);padding:.35rem .7rem .2rem;line-height:1;
}
.sec-head h2,.sec-head-plain h2{
  font-family:var(--font-d);font-weight:700;text-transform:uppercase;
  font-size:clamp(2.4rem,4.6vw,3.6rem);line-height:1;letter-spacing:.01em;
}
.sec-head-plain{margin-bottom:1.6rem}

/* ---------- servicios: lista editorial numerada ---------- */
.svc{
  display:grid;grid-template-columns:110px 1fr;gap:.6rem 2rem;
  padding:3rem 0;border-top:1px solid var(--line);
}
.svc:last-child{border-bottom:1px solid var(--line)}
.svc-num{
  font-family:var(--font-d);font-weight:700;font-size:clamp(3rem,5vw,4.4rem);
  line-height:.9;color:transparent;-webkit-text-stroke:1.5px var(--steel-bright);
}
.svc h3{
  font-family:var(--font-d);font-weight:600;text-transform:uppercase;
  font-size:clamp(1.7rem,3vw,2.3rem);letter-spacing:.03em;line-height:1.05;margin-bottom:1.1rem;
}
.svc .frame{grid-column:2;margin-top:1.6rem;max-width:560px}
.frame img{width:100%;height:auto;border:1px solid var(--line)}
.ticks{list-style:none}
.ticks li{
  position:relative;padding:.34rem 0 .34rem 1.5rem;color:var(--muted);max-width:62ch;
}
.ticks li::before{
  content:"";position:absolute;left:0;top:.86em;width:12px;height:2px;background:var(--steel-bright);
}
.ticks li strong{color:var(--text);font-weight:600}
.svc-note{margin-top:1.1rem;color:var(--muted);max-width:62ch;border-left:2px solid var(--steel);padding-left:1rem}

.permit-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(215px,1fr));gap:2rem;margin-top:1.8rem}
.permit h4{
  font-family:var(--font-d);font-weight:600;text-transform:uppercase;letter-spacing:.1em;
  font-size:1.25rem;padding-bottom:.5rem;margin-bottom:.6rem;border-bottom:1px solid var(--line);
}
.permit ul{list-style:none}
.permit li{color:var(--muted);padding:.26rem 0;font-size:.98rem}

/* ---------- proyectos ---------- */
.featured{
  display:grid;grid-template-columns:1.5fr 1fr;gap:2.5rem;align-items:start;
  padding-bottom:3.5rem;margin-bottom:3.5rem;border-bottom:1px solid var(--line);
}
.featured .tag{
  font-family:var(--font-d);font-weight:600;letter-spacing:.3em;text-transform:uppercase;
  font-size:.95rem;color:var(--steel-bright);margin-bottom:.8rem;
}
.featured h3{
  font-family:var(--font-d);font-weight:700;text-transform:uppercase;
  font-size:clamp(2.2rem,4vw,3.2rem);line-height:1;margin-bottom:1rem;
}
.featured-body p{color:var(--muted);max-width:48ch}
.featured-minis{margin-top:1.6rem;max-width:300px}
.featured-minis img{border:1px solid var(--line);width:100%;height:auto}

.grid{display:grid;grid-template-columns:repeat(12,1fr);gap:2rem 1.6rem}
.card{grid-column:span 4}
.card-a{grid-column:span 7}
.card-b{grid-column:span 5}
.card-c{grid-column:span 4}
.card img{width:100%;height:100%;max-height:340px;object-fit:cover;border:1px solid var(--line)}
.card-a img{max-height:420px}
.card figcaption{
  margin-top:.7rem;font-weight:500;font-size:1.02rem;line-height:1.4;color:var(--text);
  border-left:2px solid var(--steel);padding-left:.8rem;
}

/* ---------- nosotros ---------- */
.about-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:3rem;align-items:start}
.about-lema{
  font-family:var(--font-d);font-weight:600;text-transform:uppercase;
  font-size:clamp(1.9rem,3.6vw,2.9rem);line-height:1.08;letter-spacing:.02em;
}
.about-text{margin-top:1.4rem;color:var(--muted);max-width:56ch;font-size:1.08rem}
.accred{margin-top:2.2rem}
.accred-label{font-family:var(--font-d);font-weight:600;letter-spacing:.28em;text-transform:uppercase;color:var(--steel-bright);font-size:1rem;margin-bottom:.8rem}
.accred ul{list-style:none;display:flex;flex-wrap:wrap;gap:.7rem}
.accred li{
  font-family:var(--font-d);font-weight:600;font-size:1.3rem;letter-spacing:.12em;
  border:1px solid var(--line);background:var(--surface);padding:.5rem 1.1rem .35rem;
}

/* ---------- banda de cierre ---------- */
.closing{position:relative;overflow:hidden;background-color:var(--ink);padding:7rem 0 3.2rem;text-align:center}
.closing-photo{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.5}
.closing-shade{position:absolute;inset:0;background:linear-gradient(180deg,rgba(7,4,41,.78),rgba(8,5,51,.55) 55%,rgba(7,4,41,.92))}
.closing-lema{
  position:relative;font-family:var(--font-d);font-weight:700;text-transform:uppercase;
  font-size:clamp(2rem,5.4vw,4.2rem);line-height:1.02;letter-spacing:.02em;
  width:min(1000px,100% - 3rem);margin-inline:auto;color:#fff;
}
.closing .ruler{position:absolute;left:0;right:0;bottom:0}

/* ---------- contacto ---------- */
.contact-grid{display:grid;grid-template-columns:1fr 1.1fr;gap:3.5rem}
.contact-data h3{
  font-family:var(--font-d);font-weight:600;text-transform:uppercase;letter-spacing:.14em;
  font-size:1.3rem;margin:1.8rem 0 .5rem;
}
.contact-data h3:first-child{margin-top:0}
.contact-data address{font-style:normal;color:var(--muted)}
.contact-data p,.contact-data a{color:var(--muted)}
.contact-data a:hover{color:#fff}
.phones{list-style:none}
.phones a{
  font-family:var(--font-d);font-weight:600;font-size:1.5rem;letter-spacing:.06em;
  color:var(--text);text-decoration:none;
}
.phones a:hover{color:var(--steel-bright)}
.contact-form{display:grid;gap:1.1rem;align-content:start}
.contact-form label{display:grid;gap:.4rem;font-weight:500}
.contact-form input,.contact-form textarea{
  background:var(--surface);border:1px solid var(--line);color:var(--text);
  font:inherit;padding:.75rem .9rem;width:100%;
}
.contact-form input:focus,.contact-form textarea:focus{outline:2px solid var(--steel-bright);outline-offset:1px;border-color:transparent}
.contact-form .btn{justify-self:start}
.form-note{color:var(--muted);font-size:.92rem}

/* ---------- pie ---------- */
.site-foot{border-top:1px solid var(--line);background:var(--surface);padding:3rem 0 2.2rem}
.foot-in{display:flex;flex-wrap:wrap;gap:2rem;align-items:flex-start}
.site-foot img{height:58px;width:auto}
.foot-data{color:var(--muted);font-size:.97rem}
.foot-data p:first-child{color:var(--text);font-weight:600;text-transform:uppercase;letter-spacing:.12em;font-family:var(--font-d);font-size:1.15rem}
.foot-data a{color:var(--muted)}
.foot-legal{width:100%;color:var(--muted);font-size:.9rem;border-top:1px solid var(--line);padding-top:1.2rem}

/* ---------- reveal (único momento de movimiento) ---------- */
@keyframes rise{
  from{opacity:.3;transform:translateY(16px)}
  to{opacity:1;transform:translateY(0)}
}
.rv.in{animation:rise .85s cubic-bezier(.22,1,.36,1) both}
@media (prefers-reduced-motion:reduce){
  .rv.in{animation:none}
  html{scroll-behavior:auto}
}

/* ---------- responsive ---------- */
@media (max-width:900px){
  .featured,.about-grid,.contact-grid{grid-template-columns:1fr}
  .card,.card-a,.card-b,.card-c{grid-column:span 6}
  .svc .frame{max-width:100%}
}
@media (max-width:640px){
  body{font-size:16px}
  .section{padding:4.2rem 0}
  .menu-btn{display:block}
  .main-nav{
    display:none;position:absolute;top:100%;left:0;right:0;
    flex-direction:column;gap:0;background:var(--ink);
    border-bottom:1px solid var(--line);padding:.6rem 1.5rem 1.1rem;
  }
  .main-nav.open{display:flex}
  .main-nav a{padding:.65rem 0;border-bottom:1px solid var(--line)}
  .brand img{height:44px}
  .svc{grid-template-columns:1fr;gap:.4rem}
  .svc .frame{grid-column:1}
  .card,.card-a,.card-b,.card-c{grid-column:span 12}
  .hero-in{padding-top:8rem}
  .foot-in{flex-direction:column}
}

/* QA Jarvis: margen seguro para el titular gigante en pantallas angostas */
@media (max-width:640px){
  .hero h1{font-size:10.4vw}
}