:root {
  --negro: #0d0d0d;
  --negro-suave: #131313;
  --borde: #232323;
  --gris: #c9c9c9;
  --gris-suave: #8a8a8a;
  --taupe: #b3a493;
  --blanco: #f4f1ec;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  background: var(--negro);
  color: var(--blanco);
  font-family: 'Quicksand', 'Segoe UI', sans-serif;
  line-height: 1.6;
  overflow-x: hidden;
}

/* ───────── NAV ───────── */
nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 6vw;
  background: rgba(13, 13, 13, .82);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(35, 35, 35, .6);
  z-index: 100;
}
.nav-logo { display: flex; align-items: center; gap: 12px; }
.nav-logo img.iso { height: 34px; }
.nav-logo img.wm { height: 22px; }
.nav-links { display: flex; gap: 34px; }
.nav-links a {
  color: var(--gris);
  text-decoration: none;
  font-size: 13px;
  letter-spacing: 2.5px;
  text-transform: uppercase;
  font-weight: 500;
  transition: color .25s;
}
.nav-links a:hover { color: var(--taupe); }
@media (max-width: 760px) { .nav-links { display: none; } }

/* ───────── HERO ───────── */
.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 120px 6vw 80px;
  position: relative;
}
.hero::before {
  content: '';
  position: absolute;
  width: 780px; height: 780px;
  border: 1px solid rgba(179, 164, 147, .12);
  border-radius: 50%;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  pointer-events: none;
}
.hero::after {
  content: '';
  position: absolute;
  width: 1150px; height: 1150px;
  border: 1px solid rgba(179, 164, 147, .06);
  border-radius: 50%;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  pointer-events: none;
}
.hero img.iso { width: 130px; margin-bottom: 38px; }
.hero img.wm { width: min(430px, 78vw); margin-bottom: 26px; }
.hero .tagline {
  font-family: 'Julius Sans One', sans-serif;
  font-size: 14px;
  letter-spacing: 6px;
  color: var(--taupe);
  text-transform: uppercase;
  margin-bottom: 26px;
}
.hero p.bajada {
  max-width: 560px;
  color: var(--gris);
  font-size: 16.5px;
  margin-bottom: 44px;
}
.cta-fila { display: flex; gap: 18px; flex-wrap: wrap; justify-content: center; }
.cta {
  padding: 14px 34px;
  border-radius: 999px;
  font-size: 13px;
  letter-spacing: 2.5px;
  text-transform: uppercase;
  font-weight: 600;
  text-decoration: none;
  transition: all .25s;
}
.cta.primario { background: var(--taupe); color: var(--negro); }
.cta.primario:hover { background: var(--blanco); }
.cta.secundario { border: 1px solid var(--borde); color: var(--gris); }
.cta.secundario:hover { border-color: var(--taupe); color: var(--taupe); }

/* ───────── SECCIONES ───────── */
section { padding: 110px 6vw; max-width: 1180px; margin: 0 auto; }
.sec-titulo {
  font-family: 'Julius Sans One', sans-serif;
  font-size: clamp(24px, 3.4vw, 34px);
  letter-spacing: 5px;
  text-transform: uppercase;
  font-weight: 400;
  margin-bottom: 14px;
}
.sec-titulo em { font-style: normal; color: var(--taupe); }
.sec-bajada { color: var(--gris-suave); max-width: 620px; margin-bottom: 60px; font-size: 15.5px; }

/* Qué hacemos — narrativa del logo */
.pasos { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 26px; }
.paso {
  background: var(--negro-suave);
  border: 1px solid var(--borde);
  border-radius: 16px;
  padding: 38px 30px;
  transition: border-color .3s, transform .3s;
}
.paso:hover { border-color: rgba(179, 164, 147, .5); transform: translateY(-4px); }
.paso svg { margin-bottom: 22px; }
.paso h3 {
  font-size: 13px;
  letter-spacing: 3.5px;
  text-transform: uppercase;
  color: var(--taupe);
  margin-bottom: 12px;
  font-weight: 600;
}
.paso p { color: var(--gris); font-size: 14.5px; }

/* Productos */
.productos { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 26px; }
.producto {
  background: var(--negro-suave);
  border: 1px solid var(--borde);
  border-radius: 16px;
  padding: 40px 32px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  transition: border-color .3s, transform .3s;
}
.producto:hover { border-color: rgba(179, 164, 147, .5); transform: translateY(-4px); }
.producto .etiqueta {
  align-self: flex-start;
  font-size: 10px;
  letter-spacing: 2.5px;
  text-transform: uppercase;
  padding: 5px 14px;
  border-radius: 999px;
  border: 1px solid var(--borde);
  color: var(--gris-suave);
}
.producto .etiqueta.disponible { border-color: rgba(179, 164, 147, .6); color: var(--taupe); }
.producto h3 { font-size: 21px; font-weight: 600; }
.producto h3 span { color: var(--taupe); }
.producto p { color: var(--gris); font-size: 14.5px; flex: 1; }
.producto .stack { font-size: 11px; letter-spacing: 1.5px; color: var(--gris-suave); text-transform: uppercase; }

/* Por qué */
.razones { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 40px 46px; }
.razon h3 { font-size: 15px; font-weight: 600; margin-bottom: 8px; display: flex; align-items: center; gap: 10px; }
.razon h3::before { content: ''; width: 9px; height: 9px; border-radius: 50%; background: var(--taupe); flex-shrink: 0; }
.razon p { color: var(--gris); font-size: 14px; }

/* Contacto */
.contacto { text-align: center; }
.contacto .sec-bajada { margin-left: auto; margin-right: auto; }
.correo {
  display: inline-block;
  font-size: clamp(17px, 2.6vw, 24px);
  color: var(--blanco);
  text-decoration: none;
  border-bottom: 2px solid var(--taupe);
  padding-bottom: 4px;
  transition: color .25s;
  margin-bottom: 18px;
}
.correo:hover { color: var(--taupe); }
.ubicacion { color: var(--gris-suave); font-size: 13px; letter-spacing: 2px; text-transform: uppercase; }

/* Footer */
footer {
  border-top: 1px solid var(--borde);
  padding: 44px 6vw;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
}
footer .marca { display: flex; align-items: center; gap: 12px; }
footer .marca img.iso { height: 26px; }
footer .marca img.wm { height: 16px; }
footer p { color: var(--gris-suave); font-size: 12px; letter-spacing: 1px; }

/* Reveal on scroll */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity .7s ease, transform .7s ease; }
.reveal.visible { opacity: 1; transform: none; }