:root {
  --negro: #0d0d0d;
  --blanco: #f4f4f0;
  --gris: #5a5a5a;
  --gris-claro: #e8e8e4;
  --font-titulo: 'Anton', sans-serif;
  --font-cuerpo: 'Montserrat', sans-serif;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { background: var(--blanco); color: var(--negro); font-family: var(--font-cuerpo); font-weight: 300; overflow-x: hidden; }
img { max-width: 100%; display: block; }

/* NAV */
nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 200;
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 3rem; height: 68px;
  background: rgba(244,244,240,0.96);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(0,0,0,0.08);
}
.nav-marca { display: flex; align-items: center; gap: 0.6rem; text-decoration: none; color: var(--negro); }
.nav-marca .marca-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--negro); }
.nav-nombre { font-family: var(--font-titulo); font-size: 1.15rem; letter-spacing: 0.06em; }
.nav-links { display: flex; gap: 2.5rem; list-style: none; }
.nav-links a { font-family: var(--font-cuerpo); font-size: 0.78rem; font-weight: 500; letter-spacing: 0.18em; text-transform: uppercase; color: var(--gris); text-decoration: none; transition: color 0.2s; }
.nav-links a:hover { color: var(--negro); }
.nav-cta-btn { background: var(--negro); color: var(--blanco) !important; padding: 0.5rem 1.4rem; letter-spacing: 0.12em !important; }
.nav-cta-btn:hover { background: #333; color: var(--blanco) !important; }
.hamburger { display: none; flex-direction: column; gap: 5px; cursor: pointer; background: none; border: none; padding: 4px; }
.hamburger span { display: block; width: 22px; height: 2px; background: var(--negro); transition: all 0.3s; }

/* HERO — imagen clavada arriba (parallax) */
#hero {
  position: relative;
  min-height: 100vh;
  display: flex; align-items: center;
  padding: 6rem 5rem 4rem;
  background-image:
    linear-gradient(90deg, rgba(13,13,13,0.88) 0%, rgba(13,13,13,0.55) 45%, rgba(13,13,13,0.25) 100%),
    image-set(url('../assets/img/hero-1920.webp') 1x);
  background-size: cover;
  background-position: center;
  background-attachment: fixed;
}
.hero-izq { position: relative; max-width: 620px; }
.hero-eyebrow {
  font-family: var(--font-cuerpo); font-size: 0.72rem; font-weight: 400;
  letter-spacing: 0.35em; text-transform: uppercase; color: rgba(244,244,240,0.55);
  margin-bottom: 1.8rem; opacity: 0; animation: upIn 0.6s 0.2s forwards;
}
.hero-titulo {
  font-family: var(--font-titulo); font-size: clamp(3.8rem, 7vw, 7.5rem);
  line-height: 0.92; letter-spacing: 0.03em; color: var(--blanco);
  margin-bottom: 2rem; opacity: 0; animation: upIn 0.7s 0.35s forwards;
}
.hero-tagline {
  font-family: var(--font-cuerpo); font-style: italic; font-weight: 300; font-size: 1.1rem;
  color: rgba(244,244,240,0.75); letter-spacing: 0.05em; margin-bottom: 2.8rem;
  opacity: 0; animation: upIn 0.6s 0.5s forwards;
}
.hero-btns { display: flex; gap: 1rem; flex-wrap: wrap; opacity: 0; animation: upIn 0.6s 0.65s forwards; }
.btn-blanco { display: inline-flex; align-items: center; gap: 0.6rem; background: var(--blanco); color: var(--negro); font-family: var(--font-cuerpo); font-weight: 500; font-size: 0.82rem; letter-spacing: 0.15em; text-transform: uppercase; text-decoration: none; padding: 0.85rem 2rem; transition: background 0.2s; }
.btn-blanco:hover { background: #ddd; }
.btn-outline { display: inline-flex; align-items: center; gap: 0.6rem; border: 1px solid rgba(244,244,240,0.4); color: var(--blanco); font-family: var(--font-cuerpo); font-weight: 400; font-size: 0.82rem; letter-spacing: 0.15em; text-transform: uppercase; text-decoration: none; padding: 0.85rem 2rem; transition: border-color 0.2s, background 0.2s; }
.btn-outline:hover { border-color: var(--blanco); background: rgba(244,244,240,0.08); }

/* MARCAS */
#marcas {
  background: var(--negro); padding: 3rem 5rem;
  border-top: 1px solid rgba(244,244,240,0.08);
  display: flex; align-items: center; gap: 3rem; flex-wrap: wrap;
}
.marcas-label { font-size: 0.65rem; letter-spacing: 0.3em; text-transform: uppercase; color: rgba(244,244,240,0.3); white-space: nowrap; }
.marcas-sep { width: 1px; height: 24px; background: rgba(244,244,240,0.15); flex-shrink: 0; }
.marcas-row { display: flex; gap: 2.5rem 3rem; flex-wrap: wrap; align-items: center; }
.marca { font-family: var(--font-titulo); font-size: 1.15rem; letter-spacing: 0.12em; color: rgba(244,244,240,0.25); transition: color 0.3s; }
.marca:hover { color: rgba(244,244,240,0.8); }

/* SECCIONES */
section { padding: 6rem 5rem; }
.etiqueta { font-size: 0.68rem; letter-spacing: 0.35em; text-transform: uppercase; color: var(--gris); margin-bottom: 1rem; }
.titulo-sec { font-family: var(--font-titulo); font-size: clamp(2.4rem, 4.5vw, 4.2rem); line-height: 0.95; letter-spacing: 0.03em; margin-bottom: 1.2rem; }
.bajada { font-size: 0.95rem; color: var(--gris); max-width: 500px; line-height: 1.75; margin-bottom: 3rem; font-weight: 300; }

/* PRODUCTOS */
#productos { background: var(--blanco); }
.prod-header { display: grid; grid-template-columns: 1fr 1fr; gap: 3rem; align-items: end; margin-bottom: 3.5rem; }
.prod-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; }
.prod-card { background: var(--blanco); border: 1px solid rgba(0,0,0,0.1); overflow: hidden; display: flex; flex-direction: column; transition: box-shadow 0.3s, transform 0.3s; }
.prod-card:hover { box-shadow: 0 18px 40px rgba(0,0,0,0.12); transform: translateY(-4px); }
.prod-media { position: relative; aspect-ratio: 4 / 3; overflow: hidden; background: var(--gris-claro); }
.prod-media img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.6s ease; }
.prod-card:hover .prod-media img { transform: scale(1.06); }
.prod-num { position: absolute; top: 0.8rem; left: 0.9rem; font-family: var(--font-titulo); font-size: 1.6rem; color: var(--blanco); text-shadow: 0 2px 10px rgba(0,0,0,0.5); z-index: 1; }
.prod-body { padding: 1.6rem 1.5rem 1.8rem; flex: 1; display: flex; flex-direction: column; }
.prod-nombre { font-family: var(--font-titulo); font-size: 1.45rem; letter-spacing: 0.03em; margin-bottom: 0.6rem; }
.prod-desc { font-size: 0.85rem; color: var(--gris); line-height: 1.65; }
.prod-etiqueta { display: inline-block; margin-top: 1.1rem; font-size: 0.62rem; letter-spacing: 0.22em; text-transform: uppercase; color: var(--negro); border-bottom: 1px solid var(--negro); padding-bottom: 2px; align-self: flex-start; }

/* OBRAS */
#obras { background: var(--negro); color: var(--blanco); }
.obras-header { display: grid; grid-template-columns: 1fr 1fr; gap: 3rem; align-items: end; margin-bottom: 3rem; }
.obras-header .etiqueta { color: rgba(244,244,240,0.4); }
.obras-header .bajada { color: rgba(244,244,240,0.45); }
.obras-tipos { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.5rem; }
.tipo-card { border: 1px solid rgba(244,244,240,0.12); padding: 2.2rem 1.6rem; transition: border-color 0.3s, background 0.3s, transform 0.3s; }
.tipo-card:hover { border-color: rgba(244,244,240,0.4); background: rgba(244,244,240,0.03); transform: translateY(-4px); }
.tipo-icon { width: 46px; height: 46px; margin-bottom: 1.4rem; color: var(--blanco); }
.tipo-icon svg { width: 100%; height: 100%; fill: none; stroke: currentColor; stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; }
.tipo-nombre { font-family: var(--font-titulo); font-size: 1.25rem; letter-spacing: 0.03em; color: var(--blanco); margin-bottom: 0.55rem; }
.tipo-desc { font-size: 0.82rem; color: rgba(244,244,240,0.5); line-height: 1.6; }
.obras-cierre { margin-top: 3rem; display: flex; align-items: center; justify-content: space-between; gap: 1.5rem; flex-wrap: wrap; padding-top: 2.5rem; border-top: 1px solid rgba(244,244,240,0.1); }
.obras-cierre p { font-style: italic; font-size: 0.95rem; color: rgba(244,244,240,0.55); }

/* NOSOTROS */
#nosotros { background: var(--blanco); display: grid; grid-template-columns: 1fr 1fr; gap: 6rem; align-items: center; }
.datos-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 2px; background: rgba(0,0,0,0.08); }
.dato { background: var(--blanco); padding: 2rem 1.8rem; }
.dato-valor { font-family: var(--font-titulo); font-size: 2.6rem; line-height: 1; margin-bottom: 0.5rem; }
.dato-label { font-size: 0.75rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--gris); }

/* CONTACTO */
#contacto { background: var(--negro); color: var(--blanco); }
.contacto-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 6rem; align-items: start; }
.contacto-grid .etiqueta { color: rgba(244,244,240,0.4); }
.contacto-grid .bajada { color: rgba(244,244,240,0.45); }
.item-c { padding: 1.4rem 0; border-bottom: 1px solid rgba(244,244,240,0.08); }
.item-c-label { font-size: 0.62rem; letter-spacing: 0.28em; text-transform: uppercase; color: rgba(244,244,240,0.35); margin-bottom: 0.35rem; }
.item-c-val { font-size: 1rem; color: var(--blanco); text-decoration: none; }
a.item-c-val:hover { text-decoration: underline; }
.wa-box { border: 1px solid rgba(244,244,240,0.12); padding: 3rem; text-align: center; }
.wa-box .wa-icon { width: 56px; height: 56px; margin: 0 auto 1.4rem; display: flex; align-items: center; justify-content: center; background: #25d366; border-radius: 50%; }
.wa-box .wa-icon svg { width: 30px; height: 30px; fill: #0d0d0d; }
.wa-box h3 { font-family: var(--font-titulo); font-size: 1.8rem; letter-spacing: 0.04em; margin-bottom: 0.8rem; }
.wa-box p { font-size: 0.88rem; color: rgba(244,244,240,0.45); line-height: 1.7; margin-bottom: 2rem; }
.btn-wa { display: block; background: #25d366; color: #000; text-align: center; font-family: var(--font-cuerpo); font-weight: 500; font-size: 0.82rem; letter-spacing: 0.15em; text-transform: uppercase; text-decoration: none; padding: 1rem; transition: background 0.2s; }
.btn-wa:hover { background: #20bd5a; }
.social-links { display: flex; gap: 1rem; margin-top: 1.5rem; justify-content: center; }
.social-link { font-size: 0.72rem; letter-spacing: 0.15em; text-transform: uppercase; color: rgba(244,244,240,0.35); text-decoration: none; transition: color 0.2s; }
.social-link:hover { color: var(--blanco); }

/* FOOTER */
footer { background: #080808; padding: 2rem 5rem; display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 1rem; }
.footer-izq { display: flex; align-items: center; gap: 0.6rem; }
.footer-izq .marca-dot { width: 9px; height: 9px; border-radius: 50%; background: var(--blanco); }
.footer-nombre { font-family: var(--font-titulo); font-size: 1rem; letter-spacing: 0.06em; color: var(--blanco); }
.footer-copy { font-size: 0.72rem; color: rgba(244,244,240,0.25); letter-spacing: 0.05em; }

/* WA FLOAT */
.wa-float { position: fixed; bottom: 2rem; right: 2rem; z-index: 300; width: 54px; height: 54px; background: #25d366; border-radius: 50%; display: flex; align-items: center; justify-content: center; text-decoration: none; box-shadow: 0 4px 18px rgba(37,211,102,0.4); transition: transform 0.2s; }
.wa-float:hover { transform: scale(1.08); }
.wa-float svg { width: 26px; height: 26px; fill: #000; }

/* ANIMATIONS */
@keyframes upIn { from { opacity: 0; transform: translateY(22px); } to { opacity: 1; transform: translateY(0); } }
.reveal { opacity: 0; transform: translateY(28px); transition: opacity 0.65s ease, transform 0.65s ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }

/* RESPONSIVE */
@media (max-width: 960px) {
  #hero {
    padding: 7rem 2.5rem 3rem;
    background-attachment: scroll;
    background-image:
      linear-gradient(90deg, rgba(13,13,13,0.9) 0%, rgba(13,13,13,0.65) 55%, rgba(13,13,13,0.4) 100%),
      image-set(url('../assets/img/hero-1280.webp') 1x);
  }
  .prod-header { grid-template-columns: 1fr; }
  .prod-grid { grid-template-columns: 1fr 1fr; }
  #nosotros { grid-template-columns: 1fr; gap: 3rem; }
  .contacto-grid { grid-template-columns: 1fr; gap: 3rem; }
  .obras-tipos { grid-template-columns: 1fr 1fr; }
  section { padding: 4rem 2.5rem; }
  #marcas { padding: 2.5rem; }
  footer { padding: 1.5rem 2.5rem; }
  .obras-header { grid-template-columns: 1fr; }
}
@media (max-width: 600px) {
  nav { padding: 0 1.5rem; }
  .nav-links { display: none; }
  .nav-links.open { display: flex; flex-direction: column; position: fixed; inset: 68px 0 0; background: var(--blanco); align-items: center; justify-content: center; gap: 2.5rem; z-index: 199; }
  .nav-links.open a { font-size: 1.1rem; }
  .hamburger { display: flex; }
  .prod-grid { grid-template-columns: 1fr; }
  .obras-tipos { grid-template-columns: 1fr; }
  .datos-grid { grid-template-columns: 1fr 1fr; }
  footer { flex-direction: column; text-align: center; }
}
@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; scroll-behavior: auto !important; }
  .reveal { opacity: 1; transform: none; }
  #hero { background-attachment: scroll; }
}

/* MAPA */
.link-mapa { display: inline-block; margin-top: 0.6rem; font-size: 0.72rem; letter-spacing: 0.12em; text-transform: uppercase; color: #25d366; text-decoration: none; }
.link-mapa:hover { text-decoration: underline; }
.mapa-wrap { margin-top: 4rem; position: relative; }
.mapa-wrap iframe { width: 100%; height: 380px; border: 0; display: block; filter: grayscale(0.3) contrast(1.05); }
.btn-mapa { position: absolute; bottom: 1.2rem; right: 1.2rem; background: var(--blanco); color: var(--negro); font-family: var(--font-cuerpo); font-weight: 500; font-size: 0.8rem; letter-spacing: 0.12em; text-transform: uppercase; text-decoration: none; padding: 0.75rem 1.4rem; box-shadow: 0 6px 20px rgba(0,0,0,0.35); transition: background 0.2s; }
.btn-mapa:hover { background: #ddd; }
@media (max-width: 600px) {
  .mapa-wrap iframe { height: 300px; }
  .btn-mapa { left: 1.2rem; right: 1.2rem; bottom: 1.2rem; text-align: center; }
}

/* GALERÍA DE OBRAS (fotos reales) */
.obras-galeria { margin-top: 3rem; display: grid; grid-template-columns: repeat(4, 1fr); gap: 1rem; }
.obras-galeria figure { position: relative; margin: 0; aspect-ratio: 3 / 4; overflow: hidden; background: #111; border: 1px solid rgba(244,244,240,0.12); }
.obras-galeria img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.6s ease; }
.obras-galeria figure:hover img { transform: scale(1.06); }

/* FOTO NOSOTROS */
.nosotros-derecha { display: flex; flex-direction: column; gap: 1.5rem; }
.nosotros-foto { width: 100%; aspect-ratio: 16 / 10; object-fit: cover; object-position: center; }
@media (max-width: 420px) {
  .obras-galeria { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 600px) {
  .obras-galeria { grid-template-columns: repeat(2, 1fr); gap: 0.6rem; }
}