/* =====================================================
   Belmont Real Estate — presentación institucional
   Registro: brand · referencia Balmoral (neutro editorial)
   Paleta blanco/negro; el dorado vive solo en el escudo.
   ===================================================== */
:root{
  --bg: oklch(1 0 0);
  --ink: oklch(0.21 0 0);
  --muted: oklch(0.45 0 0);
  --line: oklch(0.9 0 0);
  --dark: oklch(0.18 0 0);
  --dark-ink: oklch(0.97 0 0);
  --dark-muted: oklch(0.76 0 0);
  --header-h: 72px;
  --ease-out: cubic-bezier(.22,1,.36,1);
  --font: 'Archivo', 'Helvetica Neue', system-ui, sans-serif;
  --z-header: 10;
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
html:focus-within{scroll-behavior:smooth}
body{
  font-family:var(--font);
  font-size:1.0625rem;
  line-height:1.65;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%}
a{color:inherit}
h1,h2,h3{text-wrap:balance}
p{text-wrap:pretty}

:focus-visible{outline:2px solid var(--ink);outline-offset:3px}
.contact :focus-visible{outline-color:var(--dark-ink)}

.skip{
  position:absolute;left:1rem;top:-3rem;z-index:calc(var(--z-header) + 1);
  background:var(--ink);color:#fff;padding:.5rem 1rem;text-decoration:none;
  transition:top .2s var(--ease-out);
}
.skip:focus{top:1rem}

/* ---------- Header ---------- */
.site-header{
  position:fixed;inset:0 0 auto 0;z-index:var(--z-header);
  height:var(--header-h);
  display:flex;align-items:center;justify-content:space-between;
  padding:0 clamp(1.25rem, 4vw, 3rem);
  color:#fff;
  transition:background .35s var(--ease-out), color .35s var(--ease-out), box-shadow .35s var(--ease-out);
}
.site-header.scrolled{
  background:var(--bg);
  color:var(--ink);
  box-shadow:0 1px 0 var(--line);
}
.brand{display:flex;align-items:center;text-decoration:none}
.brand-name{
  font-weight:640;font-stretch:112%;
  text-transform:uppercase;letter-spacing:.14em;font-size:.92rem;line-height:1.1;
  display:flex;flex-direction:column;
}
.brand-name em{
  font-style:normal;font-weight:420;font-stretch:100%;
  letter-spacing:.3em;font-size:.55rem;opacity:.85;
}
.site-header nav{display:flex;align-items:center;gap:clamp(1.1rem, 3vw, 2.2rem)}
.site-header nav a{
  text-decoration:none;text-transform:uppercase;
  font-size:.78rem;font-weight:520;letter-spacing:.12em;
  padding:.35rem 0;
  border-bottom:1px solid transparent;
  transition:border-color .25s var(--ease-out);
}
.site-header nav a:hover{border-bottom-color:currentColor}
.nav-cta{
  border:1px solid currentColor;
  padding:.5rem 1.1rem !important;
  transition:background .25s var(--ease-out), color .25s var(--ease-out) !important;
}
.site-header .nav-cta:hover{background:#fff;color:#111;border-color:#fff}
.site-header.scrolled .nav-cta:hover{background:var(--ink);color:#fff;border-color:var(--ink)}

/* ---------- Hero ---------- */
.hero{
  position:relative;min-height:100svh;
  display:flex;align-items:flex-end;
  color:#fff;
  overflow:hidden;
}
.hero-media{position:absolute;inset:0}
.hero-media img{
  width:100%;height:100%;object-fit:cover;
  animation:hero-settle 2.2s var(--ease-out) both;
}
@keyframes hero-settle{from{transform:scale(1.06)}to{transform:scale(1)}}
.hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(to top, rgba(0,0,0,.62) 0%, rgba(0,0,0,.12) 55%, rgba(0,0,0,.38) 100%);
}
.hero-inner{
  position:relative;z-index:1;
  padding:clamp(2.5rem, 7vh, 6rem) clamp(1.25rem, 4vw, 3rem);
  max-width:60rem;
}
.hero-tag{
  text-transform:uppercase;letter-spacing:.3em;font-size:.75rem;font-weight:500;
  margin-bottom:1.2rem;
}
.hero h1{
  font-size:clamp(2.8rem, 8vw, 5.75rem);
  font-weight:620;font-stretch:114%;
  line-height:.98;letter-spacing:-.015em;
  text-transform:uppercase;
  margin-bottom:1.4rem;
}
.hero-sub{
  max-width:34rem;font-size:clamp(1rem, 1.6vw, 1.2rem);line-height:1.55;
  margin-bottom:2.2rem;
  color:rgba(255,255,255,.92);
}
.hero-tag,.hero h1,.hero-sub,.hero .btn{animation:hero-rise 1s var(--ease-out) both}
.hero h1{animation-delay:.12s}
.hero-sub{animation-delay:.24s}
.hero .btn{animation-delay:.38s}
@keyframes hero-rise{from{opacity:0;transform:translateY(22px)}to{opacity:1;transform:none}}

/* ---------- Botones ---------- */
.btn{
  display:inline-block;text-decoration:none;
  text-transform:uppercase;letter-spacing:.14em;font-size:.8rem;font-weight:560;
  padding:.95rem 2.1rem;
  border:1px solid currentColor;
  transition:background .25s var(--ease-out), color .25s var(--ease-out);
}
.btn-light{color:#fff}
.btn-light:hover{background:#fff;color:#111}

/* ---------- La empresa ---------- */
.about{
  display:grid;
  grid-template-columns:minmax(0, 7fr) minmax(0, 5fr);
  gap:clamp(2.5rem, 6vw, 5.5rem);
  align-items:center;
  padding:clamp(5rem, 12vh, 9rem) clamp(1.25rem, 4vw, 3rem);
  max-width:82rem;margin:0 auto;
}
.about h2,.services h2{
  font-size:clamp(1.9rem, 4.2vw, 3.1rem);
  font-weight:600;font-stretch:110%;
  line-height:1.05;letter-spacing:-.01em;
  text-transform:uppercase;
  margin-bottom:1.6rem;
}
.about .lede{
  font-size:clamp(1.15rem, 1.9vw, 1.4rem);line-height:1.5;font-weight:480;
  margin-bottom:1.2rem;
  max-width:65ch;
}
.about p + p{margin-top:1rem}
.about p{max-width:65ch;color:var(--ink)}
.about-media img{width:100%;aspect-ratio:4/5;object-fit:cover}
.about-media figcaption{
  margin-top:.8rem;
  font-size:.8rem;letter-spacing:.06em;text-transform:uppercase;
  color:var(--muted);
}

/* ---------- Servicios ---------- */
.services{
  border-top:1px solid var(--line);
  padding:clamp(4.5rem, 11vh, 8rem) clamp(1.25rem, 4vw, 3rem);
  max-width:82rem;margin:0 auto;
}
.services h2{margin-bottom:clamp(2.2rem, 5vh, 3.5rem)}
.services-grid{
  display:grid;
  grid-template-columns:repeat(auto-fit, minmax(280px, 1fr));
  gap:clamp(1.5rem, 3vw, 2.5rem);
}
.service img{
  width:100%;aspect-ratio:4/5;object-fit:cover;
  transition:transform .6s var(--ease-out);
}
.service{overflow:hidden}
.service:hover img{transform:scale(1.03)}
.service h3{
  margin-top:1.1rem;
  font-size:.95rem;font-weight:600;font-stretch:108%;
  text-transform:uppercase;letter-spacing:.1em;
}
.service p{margin-top:.4rem;font-size:.95rem;color:var(--muted);max-width:38ch}

/* ---------- Contacto ---------- */
.contact{
  background:var(--dark);color:var(--dark-ink);
  padding:clamp(5rem, 14vh, 10rem) clamp(1.25rem, 4vw, 3rem);
}
.contact-inner{max-width:82rem;margin:0 auto}
.contact h2{
  font-size:clamp(3rem, 9vw, 6rem);
  font-weight:620;font-stretch:114%;
  line-height:1;letter-spacing:-.015em;text-transform:uppercase;
  margin-bottom:1.2rem;
}
.contact-lede{font-size:clamp(1.05rem, 1.7vw, 1.25rem);color:var(--dark-muted);margin-bottom:3rem;max-width:40ch}
.contact-data{display:flex;flex-direction:column;gap:.4rem;margin-bottom:2.4rem}
.contact-big{
  font-size:clamp(1.3rem, 3.4vw, 2.3rem);
  font-weight:520;letter-spacing:-.01em;
  text-decoration:none;width:fit-content;
  border-bottom:1px solid transparent;
  transition:border-color .25s var(--ease-out);
}
.contact-big:hover{border-bottom-color:currentColor}
.contact-meta{color:var(--dark-muted);margin-bottom:3rem}
.contact-meta p + p{margin-top:.2rem}

/* ---------- Footer ---------- */
.site-footer{
  display:flex;flex-wrap:wrap;align-items:center;gap:1.5rem 2.5rem;
  padding:2rem clamp(1.25rem, 4vw, 3rem);
}
.foot-brand{
  display:flex;align-items:center;gap:.6rem;
  font-size:.85rem;font-weight:560;letter-spacing:.1em;text-transform:uppercase;
}
.site-footer nav{display:flex;gap:1.5rem;margin-right:auto}
.site-footer nav a{
  text-decoration:none;font-size:.8rem;letter-spacing:.08em;text-transform:uppercase;
  color:var(--muted);
  transition:color .25s var(--ease-out);
}
.site-footer nav a:hover{color:var(--ink)}
.foot-legal{font-size:.8rem;color:var(--muted)}

/* ---------- Reveals al hacer scroll (mejora progresiva) ---------- */
.js .reveal{
  opacity:0;transform:translateY(24px);
  transition:opacity .8s var(--ease-out), transform .8s var(--ease-out);
}
.js .reveal.in{opacity:1;transform:none}

/* ---------- Reduced motion ---------- */
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
  .hero-media img,.hero-tag,.hero h1,.hero-sub,.hero .btn{animation:none}
  .js .reveal{opacity:1;transform:none;transition:none}
  .service img{transition:none}
}

/* ---------- Responsive ---------- */
@media (max-width: 900px){
  .about{grid-template-columns:1fr}
  .about-media{order:-1}
  .about-media img{aspect-ratio:16/10}
}
@media (max-width: 560px){
  .brand-name{font-size:.8rem;letter-spacing:.1em}
  .site-header{padding:0 1.1rem}
  .site-header nav{gap:1rem}
  .site-header nav a{font-size:.72rem;letter-spacing:.08em}
  .nav-cta{padding:.4rem .7rem !important}
  .site-footer nav{margin-right:0}
}