/* Estudio de Arquitectura Noir — tokens tomados del isologo real (navy/crema)
   y de la paleta de marca ya usada en Instagram (sand/pearl/slate). */
:root {
  --navy: #0D1A34;
  --navy-soft: #16294a;
  --mist: #DFE0D1;
  --pearl: #E7E9E5;
  --sand: #AD9B86;
  --sand-light: #cabda9;
  --sand-dark: #7C6A55;
  --slate: #6E7679;

  --font-display: "Jost", ui-sans-serif, system-ui, sans-serif;
  --font-sans: "Quicksand", ui-sans-serif, system-ui, sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, monospace;

  --tracking-wide: 0.04em;
  --tracking-wider: 0.08em;
  --tracking-widest: 0.14em;
  --ease: cubic-bezier(.22,.61,.36,1);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--mist);
  color: var(--navy);
  font-family: var(--font-sans);
  overflow-x: hidden;
}
a { color: var(--navy); text-decoration: none; }
img { max-width: 100%; display: block; }
.wrap { max-width: 1500px; margin: 0 auto; padding: 0 48px; }

@media (max-width: 720px) {
  .wrap { padding: 0 24px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; }
}

/* ---------- Header ---------- */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 24px 48px;
  transition: padding .5s var(--ease), background-color .5s ease, border-color .5s ease;
  border-bottom: 1px solid transparent;
}
.site-header.is-solid {
  background: var(--mist);
  padding: 14px 48px;
  border-bottom-color: var(--pearl);
}
.site-header__brand { display: flex; align-items: center; gap: 12px; }
.site-header__mark {
  position: relative;
  display: block;
  height: 34px;
  aspect-ratio: 2600 / 2760;
}
.site-header__mark img {
  position: absolute; inset: 0;
  height: 100%; width: 100%;
  object-fit: contain;
  transition: opacity .4s ease;
}
.site-header__mark .logo-light { opacity: 0; }
.site-header.is-solid .site-header__mark .logo-dark { opacity: 0; }
.site-header.is-solid .site-header__mark .logo-light { opacity: 1; }
.site-header__brand span:not(.site-header__mark) {
  font-family: var(--font-display);
  font-size: 14px;
  letter-spacing: var(--tracking-widest);
  text-transform: uppercase;
  color: var(--mist);
  transition: color .5s ease;
}
.site-header.is-solid .site-header__brand span:not(.site-header__mark) { color: var(--navy); }

.site-nav { display: flex; align-items: center; gap: 34px; }
.site-nav a {
  font-family: var(--font-sans);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: var(--mist);
  transition: color .5s ease, opacity .3s ease;
}
.site-header.is-solid .site-nav a { color: var(--navy); }
.site-nav a:hover { opacity: .6; }

.progress-bar {
  position: fixed; top: 0; left: 0; height: 2px; width: 0%;
  background: var(--sand); z-index: 60;
}

@media (max-width: 720px) {
  .site-header, .site-header.is-solid { padding: 16px 24px; }
  .site-nav { display: none; }
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  height: 100vh;
  min-height: 640px;
  overflow: hidden;
  background: var(--navy);
}
.hero__media {
  position: absolute; inset: 0;
  transform: scale(1.06);
  transition: transform 2.4s var(--ease);
  background: linear-gradient(150deg, #16294a, #0D1A34 60%);
}
.hero__media img { width: 100%; height: 100%; object-fit: cover; }
.hero__scrim {
  position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(13,26,52,.72) 0%, rgba(13,26,52,.35) 45%, rgba(13,26,52,.85) 100%);
  pointer-events: none;
}
.hero__content {
  position: absolute; inset: 0;
  display: flex; flex-direction: column; justify-content: flex-end;
  padding: 0 48px 88px;
}
.hero__kicker {
  font-family: var(--font-display);
  font-size: 11px;
  letter-spacing: var(--tracking-widest);
  text-transform: uppercase;
  color: var(--sand);
  margin-bottom: 24px;
}
.hero h1 {
  margin: 0;
  max-width: 15ch;
  font-family: var(--font-display);
  font-size: clamp(40px, 6.4vw, 100px);
  font-weight: 300;
  line-height: 1.03;
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: var(--mist);
}
.hero h1 span { display: block; }
.hero h1 .accent { color: var(--sand-light); }
.hero__foot {
  display: flex; align-items: flex-end; justify-content: space-between;
  gap: 48px; margin-top: 48px; flex-wrap: wrap;
}
.hero__lede {
  margin: 0; max-width: 52ch;
  font-size: 16px; line-height: 1.75; color: var(--pearl);
}
.hero__cue { display: flex; align-items: center; gap: 16px; }
.hero__cue-line {
  width: 1px; height: 56px; background: var(--sand);
  animation: noir-scroll-cue 2.6s ease-in-out infinite;
}
.hero__cue span {
  font-size: 11px; letter-spacing: var(--tracking-wider);
  text-transform: uppercase; color: var(--sand);
}
@keyframes noir-scroll-cue {
  0% { transform: scaleY(0); transform-origin: top; }
  45% { transform: scaleY(1); transform-origin: top; }
  55% { transform: scaleY(1); transform-origin: bottom; }
  100% { transform: scaleY(0); transform-origin: bottom; }
}

@media (max-width: 720px) {
  .hero__content { padding: 0 24px 56px; }
  .hero__foot { flex-direction: column; align-items: flex-start; gap: 24px; }
}

/* ---------- Reveal on scroll ---------- */
[data-reveal] {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity .9s var(--ease), transform 1s var(--ease);
}
[data-reveal].is-visible { opacity: 1; transform: none; }

/* ---------- Section: numbered label ---------- */
.section-label {
  font-family: var(--font-display);
  font-size: 11px;
  letter-spacing: var(--tracking-widest);
  text-transform: uppercase;
  color: var(--sand);
}

/* ---------- Estudio ---------- */
.estudio {
  padding: 140px 0 100px;
  background: var(--mist);
}
.estudio__grid {
  display: grid;
  grid-template-columns: minmax(0,1fr) minmax(0,1.35fr);
  gap: 72px;
  align-items: start;
}
.estudio__rule { width: 44px; height: 2px; background: var(--sand); margin-bottom: 26px; }
.estudio h2 {
  margin: 22px 0 0;
  font-family: var(--font-display);
  font-size: clamp(24px, 2.4vw, 38px);
  font-weight: 300;
  line-height: 1.16;
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: var(--navy);
}
.estudio p { margin: 0; font-size: clamp(17px,1.3vw,21px); line-height: 1.7; color: var(--navy); }
.estudio p + p { margin-top: 28px; font-size: 16px; color: var(--slate); max-width: 64ch; }
.estudio__stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0,1fr));
  gap: 28px;
  margin-top: 56px;
  border-top: 1px solid var(--pearl);
  padding-top: 28px;
}
.estudio__stats dt {
  font-family: var(--font-display);
  font-size: 10px;
  letter-spacing: var(--tracking-widest);
  text-transform: uppercase;
  color: var(--sand);
  margin-bottom: 8px;
}
.estudio__stats dd { margin: 0; font-family: var(--font-mono); font-size: 13px; color: var(--navy); }

@media (max-width: 900px) {
  .estudio__grid { grid-template-columns: 1fr; gap: 32px; }
  .estudio__stats { grid-template-columns: 1fr; gap: 20px; }
}

.estudio-fotos {
  padding: 0 0 120px;
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 28px;
}
.estudio-fotos__a, .estudio-fotos__b {
  position: relative; overflow: hidden; background: var(--pearl);
}
.estudio-fotos__a { aspect-ratio: 16/10; }
.estudio-fotos__b { aspect-ratio: 4/5; align-self: end; }
.estudio-fotos img { width: 100%; height: 100%; object-fit: cover; }
.placeholder-foto {
  width: 100%; height: 100%;
  display: flex; align-items: center; justify-content: center;
  text-align: center; padding: 20px;
  background: repeating-linear-gradient(135deg, var(--pearl), var(--pearl) 12px, #dfe1dc 12px, #dfe1dc 24px);
  color: var(--slate); font-size: 13px; font-family: var(--font-mono);
}
@media (max-width: 900px) {
  .estudio-fotos { grid-template-columns: 1fr; }
  .estudio-fotos__b { align-self: auto; }
}

/* ---------- Servicios ---------- */
.servicios { padding: 120px 0; background: var(--pearl); }
.servicios__head {
  display: flex; align-items: baseline; justify-content: space-between;
  gap: 40px; flex-wrap: wrap;
  border-bottom: 1px solid var(--sand-light);
  padding-bottom: 28px;
}
.servicios h2 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(28px, 3.4vw, 54px);
  font-weight: 300; line-height: 1.05;
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: var(--navy);
}
.servicio {
  display: grid;
  grid-template-columns: 70px minmax(0,1fr) minmax(0,1.1fr);
  gap: 36px; align-items: start;
  padding: 38px 0;
  border-bottom: 1px solid var(--sand-light);
  transition: background-color .4s ease, padding-left .4s ease;
}
.servicio:hover { background: rgba(255,255,255,.5); padding-left: 14px; }
.servicio__num { font-family: var(--font-mono); font-size: 13px; color: var(--sand-dark); padding-top: 6px; }
.servicio h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(19px,1.8vw,27px);
  font-weight: 300; line-height: 1.2;
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: var(--navy);
}
.servicio p { margin: 0; font-size: 15.5px; line-height: 1.75; color: var(--slate); max-width: 58ch; }

@media (max-width: 720px) {
  .servicio { grid-template-columns: 1fr; gap: 8px; }
  .servicio__num { padding-top: 0; }
}

/* ---------- Proyectos ---------- */
.proyectos { padding: 120px 0 40px; background: var(--mist); }
.proyectos__head {
  display: flex; align-items: baseline; justify-content: space-between;
  gap: 40px; flex-wrap: wrap; margin-bottom: 64px;
}
.proyectos h2 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(28px,3.4vw,54px);
  font-weight: 300; line-height: 1.05;
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: var(--navy);
}

.proyecto-feature {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 48px; align-items: end;
  margin-bottom: 100px;
}
.proyecto-feature__media, .proyecto-item__media {
  position: relative; aspect-ratio: 3/2; overflow: hidden; background: var(--pearl);
}
.proyecto-feature__zoom, .proyecto-item__zoom {
  position: absolute; inset: 0; transition: transform 1.1s var(--ease);
}
.proyecto-feature__zoom img, .proyecto-item__zoom img, .proyectos-duo img {
  width: 100%; height: 100%; object-fit: cover;
}
.proyecto-feature:hover .proyecto-feature__zoom,
.proyecto-item:hover .proyecto-item__zoom { transform: scale(1.05); }
.proyecto-feature__meta, .proyecto-item__meta {
  font-family: var(--font-mono); font-size: 12px; color: var(--sand-dark);
  letter-spacing: var(--tracking-wide); margin-bottom: 14px;
}
.proyecto-feature h3, .proyecto-item h3 {
  margin: 0 0 16px;
  font-family: var(--font-display);
  font-size: clamp(22px,2.4vw,36px);
  font-weight: 300; line-height: 1.1;
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: var(--navy);
}
.proyecto-feature p, .proyecto-item p { margin: 0 0 20px; font-size: 16px; line-height: 1.8; color: var(--slate); }
.proyecto-feature__datos {
  display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 18px;
  border-top: 1px solid var(--pearl); padding-top: 18px;
}
.proyecto-feature__datos dt {
  font-family: var(--font-display); font-size: 10px; letter-spacing: var(--tracking-widest);
  text-transform: uppercase; color: var(--sand); margin-bottom: 6px;
}
.proyecto-feature__datos dd { margin: 0; font-size: 14px; color: var(--navy); }
.proyecto-feature__link, .proyecto-item__link {
  display: inline-block; font-size: 13px; font-weight: 600;
  letter-spacing: var(--tracking-wide); text-transform: uppercase;
  color: var(--sand-dark); border-bottom: 1px solid var(--sand-dark);
}

.proyectos-duo {
  display: grid; grid-template-columns: repeat(2, minmax(0,1fr));
  gap: 28px; margin-bottom: 100px;
}
.proyectos-duo > div { position: relative; aspect-ratio: 4/5; overflow: hidden; background: var(--pearl); }

.proyecto-item {
  display: grid; grid-template-columns: 1fr 1.5fr;
  gap: 48px; align-items: end; margin-bottom: 100px;
}
.proyecto-item.reverse { grid-template-columns: 1.5fr 1fr; }
.proyecto-item.reverse .proyecto-item__media { order: 2; }
.proyecto-item.reverse .proyecto-item__text { order: 1; }

@media (max-width: 900px) {
  .proyecto-feature, .proyecto-item, .proyecto-item.reverse {
    grid-template-columns: 1fr; gap: 24px;
  }
  .proyecto-item.reverse .proyecto-item__media,
  .proyecto-item.reverse .proyecto-item__text { order: unset; }
  .proyectos-duo { grid-template-columns: 1fr; }
}

/* ---------- Marquee ---------- */
.marquee {
  padding: 64px 0;
  background: var(--mist);
  overflow: hidden;
  border-top: 1px solid var(--pearl);
  border-bottom: 1px solid var(--pearl);
}
.marquee__track {
  display: flex; width: max-content;
  animation: noir-marquee 38s linear infinite;
}
.marquee__set {
  display: flex; align-items: center; gap: 48px; padding-right: 48px;
  font-family: var(--font-display);
  font-size: clamp(24px,4vw,60px);
  font-weight: 300; letter-spacing: var(--tracking-wide);
  text-transform: uppercase; color: var(--navy);
  white-space: nowrap;
}
.marquee__set span.dot { color: var(--sand); }
@keyframes noir-marquee { from { transform: translateX(0); } to { transform: translateX(-50%); } }

/* ---------- Contacto ---------- */
.contacto { padding: 140px 0 56px; background: var(--navy); }
.contacto__grid { display: grid; grid-template-columns: 1.3fr 1fr; gap: 64px; align-items: start; }
.contacto h2 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(30px,4.4vw,72px);
  font-weight: 300; line-height: 1.06;
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: var(--mist);
}
.contacto__lede { margin: 32px 0 40px; max-width: 52ch; font-size: 18px; line-height: 1.8; color: var(--pearl); }
.contacto__ctas { display: flex; gap: 16px; flex-wrap: wrap; }
.boton {
  display: inline-flex; align-items: center; gap: 12px;
  padding: 18px 30px;
  font-size: 13px; font-weight: 700; letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  transition: background-color .4s ease, color .4s ease, border-color .4s ease;
}
.boton--primario { background: var(--sand); color: var(--navy); }
.boton--primario:hover { background: var(--mist); }
.boton--secundario { border: 1px solid var(--slate); color: var(--mist); }
.boton--secundario:hover { border-color: var(--sand); color: var(--sand); }

.contacto__datos {
  display: flex; flex-direction: column; gap: 28px;
  border-top: 1px solid rgba(223,224,209,.2); padding-top: 28px;
}
.contacto__datos dt {
  font-family: var(--font-display); font-size: 10px; letter-spacing: var(--tracking-widest);
  text-transform: uppercase; color: var(--sand); margin-bottom: 8px;
}
.contacto__datos dd { margin: 0; font-size: 16px; color: var(--mist); }
.contacto__datos a { color: var(--mist); }
.contacto__datos a:hover { color: var(--sand); }

.site-footer {
  margin-top: 120px;
  border-top: 1px solid rgba(223,224,209,.2);
  padding-top: 28px;
  display: flex; align-items: center; justify-content: space-between;
  gap: 24px; flex-wrap: wrap;
}
.site-footer__brand {
  font-family: var(--font-display); font-size: 13px;
  letter-spacing: var(--tracking-widest); text-transform: uppercase; color: var(--mist);
}
.site-footer__legal { font-family: var(--font-mono); font-size: 11px; color: var(--slate); }

@media (max-width: 900px) {
  .contacto__grid { grid-template-columns: 1fr; gap: 40px; }
}

/* ---------- Página de proyecto individual ---------- */
.subpage-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 22px 48px;
  background: var(--navy);
}
.subpage-header img { height: 30px; }
.subpage-header a.volver { color: var(--mist); font-size: 13px; letter-spacing: var(--tracking-wide); text-transform: uppercase; }
.subpage-header a.volver:hover { color: var(--sand); }

.proyecto-page { padding: 64px 0 100px; max-width: 820px; margin: 0 auto; }
.proyecto-page h1 {
  font-family: var(--font-display);
  font-size: clamp(30px,4.4vw,52px);
  font-weight: 300; line-height: 1.08;
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  margin: 16px 0 20px;
}
.proyecto-page__datos {
  display: flex; flex-wrap: wrap; gap: 28px; margin: 0 0 32px;
}
.proyecto-page__datos dt {
  font-family: var(--font-display); font-size: 10px; letter-spacing: var(--tracking-widest);
  text-transform: uppercase; color: var(--sand-dark); margin-bottom: 6px;
}
.proyecto-page__datos dd { margin: 0; font-weight: 600; }
.proyecto-page__portada { width: 100%; margin-bottom: 32px; }
.proyecto-page__texto { color: var(--slate); font-size: 17px; line-height: 1.8; }
.proyecto-page__galeria {
  margin-top: 28px; display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px,1fr)); gap: 14px;
}