/* ===========================================================
   FRANKO — Zapatos Únicos
   Sistema de diseño · fondo blanco · acento celeste de marca
   =========================================================== */

:root{
  --negro:#161616;
  --gris-texto:#4a4a4a;
  --gris-suave:#8a8a8a;
  --linea:#e7e7e7;
  --fondo:#ffffff;
  --fondo-alt:#f6f6f6;
  --celeste:#5aaee0;
  --celeste-fuerte:#3d94cf;
  --max:1200px;
  --radio:10px;
  --sombra:0 8px 30px rgba(0,0,0,.08);
  --transicion:.35s cubic-bezier(.2,.7,.2,1);
  --ff: "Montserrat", "Segoe UI", system-ui, sans-serif;
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:var(--ff);
  color:var(--negro);
  background:var(--fondo);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
.contenedor{width:100%;max-width:var(--max);margin:0 auto;padding:0 24px}

/* ---------- Tipografía ---------- */
h1,h2,h3{font-weight:700;line-height:1.15;letter-spacing:.5px}
.seccion-titulo{
  text-align:center;
  font-size:clamp(1.6rem,3.5vw,2.4rem);
  font-weight:600;
  letter-spacing:6px;
  text-transform:uppercase;
  color:var(--negro);
  margin-bottom:8px;
}
.seccion-sub{
  text-align:center;color:var(--gris-suave);
  max-width:620px;margin:0 auto 46px;font-size:1rem;
}
.seccion-titulo .linea-deco{display:inline-block;width:48px;height:1px;background:var(--gris-suave);vertical-align:middle;margin:0 18px}

/* ---------- Header / Nav ---------- */
.header{
  position:sticky;top:0;z-index:50;
  background:rgba(255,255,255,.92);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--linea);
}
.nav{display:flex;align-items:center;justify-content:space-between;height:78px}
.nav__logo img{height:42px;width:auto}
.nav__links{display:flex;gap:30px;list-style:none}
.nav__links a{
  font-size:.92rem;letter-spacing:1px;color:var(--gris-texto);
  text-transform:lowercase;position:relative;padding:6px 0;transition:color var(--transicion);
}
.nav__links a::after{
  content:"";position:absolute;left:0;bottom:0;width:0;height:2px;
  background:var(--celeste);transition:width var(--transicion);
}
.nav__links a:hover,.nav__links a.activo{color:var(--negro)}
.nav__links a:hover::after,.nav__links a.activo::after{width:100%}
.nav__cta{display:flex;align-items:center;gap:14px}
.nav__icono{color:var(--gris-texto);transition:color var(--transicion)}
.nav__icono:hover{color:var(--celeste-fuerte)}
.nav__burger{display:none;background:none;border:0;cursor:pointer;flex-direction:column;gap:5px;padding:6px}
.nav__burger span{width:24px;height:2px;background:var(--negro);transition:var(--transicion)}

/* ---------- Hero carrusel ---------- */
.hero{position:relative;height:calc(100vh - 78px);min-height:520px;overflow:hidden;background:#000}
.hero__slide{
  position:absolute;inset:0;opacity:0;transition:opacity 1.1s ease;
  background-size:cover;background-position:center;
}
.hero__slide.activo{opacity:1}
.hero__slide::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(0,0,0,.15) 0%,rgba(0,0,0,.55) 100%)}
.hero__contenido{
  position:relative;z-index:2;height:100%;
  display:flex;flex-direction:column;justify-content:flex-end;
  padding:0 24px 90px;max-width:var(--max);margin:0 auto;color:#fff;
}
.hero__contenido h1{font-size:clamp(2rem,5.5vw,4rem);max-width:620px;text-shadow:0 2px 18px rgba(0,0,0,.4)}
.hero__contenido p{font-size:clamp(1rem,2vw,1.3rem);margin-top:14px;font-weight:300;letter-spacing:1px}
.hero__acciones{display:flex;gap:14px;margin-top:30px;flex-wrap:wrap}
.hero__dots{position:absolute;bottom:34px;left:50%;transform:translateX(-50%);z-index:3;display:flex;gap:10px}
.hero__dot{width:36px;height:3px;background:rgba(255,255,255,.45);border:0;cursor:pointer;transition:var(--transicion)}
.hero__dot.activo{background:#fff}
.hero__flecha{
  position:absolute;top:50%;transform:translateY(-50%);z-index:3;
  background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.4);color:#fff;
  width:46px;height:46px;border-radius:50%;cursor:pointer;font-size:1.3rem;
  display:flex;align-items:center;justify-content:center;transition:var(--transicion);
}
.hero__flecha:hover{background:rgba(255,255,255,.28)}
.hero__flecha--izq{left:22px}.hero__flecha--der{right:22px}

/* ---------- Botones ---------- */
.btn{
  display:inline-flex;align-items:center;gap:9px;
  padding:13px 26px;border-radius:50px;font-weight:600;font-size:.9rem;
  letter-spacing:.5px;cursor:pointer;border:1.5px solid transparent;
  transition:var(--transicion);
}
.btn--celeste{background:var(--celeste);color:#fff}
.btn--celeste:hover{background:var(--celeste-fuerte);transform:translateY(-2px)}
.btn--blanco{background:#fff;color:var(--negro)}
.btn--blanco:hover{transform:translateY(-2px)}
.btn--linea{background:transparent;color:#fff;border-color:rgba(255,255,255,.7)}
.btn--linea:hover{background:#fff;color:var(--negro)}
.btn--oscuro{background:var(--negro);color:#fff}
.btn--oscuro:hover{background:#000;transform:translateY(-2px)}

/* ---------- Sellos / beneficios ---------- */
.sellos{background:var(--fondo-alt);padding:46px 0}
.sellos__grid{display:flex;justify-content:center;gap:60px;flex-wrap:wrap;text-align:center}
.sello{max-width:200px}
.sello__n{font-size:1.4rem;font-weight:700;letter-spacing:2px;color:var(--negro)}
.sello small{display:block;color:var(--gris-suave);text-transform:uppercase;letter-spacing:2px;font-size:.72rem;margin-top:4px}

/* ---------- Categorías (home) ---------- */
.categorias{padding:90px 0}
.cat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.cat-card{
  position:relative;display:block;border-radius:var(--radio);overflow:hidden;
  aspect-ratio:3/4;background:var(--fondo-alt);box-shadow:var(--sombra);
}
.cat-card img{width:100%;height:100%;object-fit:cover;transition:transform .7s ease}
.cat-card:hover img{transform:scale(1.07)}
.cat-card::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 40%,rgba(0,0,0,.75) 100%)}
.cat-card__label{position:absolute;left:0;bottom:0;z-index:2;padding:24px;color:#fff;width:100%}
.cat-card__label h3{font-size:1.5rem;letter-spacing:3px;text-transform:uppercase}
.cat-card__label span{font-size:.85rem;color:var(--celeste);font-weight:600;letter-spacing:1px;display:inline-flex;align-items:center;gap:6px;margin-top:4px}

/* ---------- Historia / marca ---------- */
.historia{background:var(--negro);color:#fff;padding:100px 0}
.historia__grid{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center}
.historia__img{border-radius:var(--radio);overflow:hidden;box-shadow:var(--sombra)}
.historia__img img{width:100%;height:100%;object-fit:cover}
.historia h2{font-size:clamp(1.8rem,3.5vw,2.6rem);letter-spacing:1px;margin-bottom:22px}
.historia h2 b{color:var(--celeste)}
.historia p{color:#c9c9c9;margin-bottom:18px;font-weight:300}

/* ---------- Página de categoría ---------- */
.cat-hero{padding:70px 0 10px;text-align:center}
.cat-hero p{color:var(--gris-suave);max-width:600px;margin:14px auto 0}
.productos{padding:50px 0 90px}
.prod-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.prod-card{background:#fff;border:1px solid var(--linea);border-radius:var(--radio);overflow:hidden;transition:var(--transicion)}
.prod-card:hover{box-shadow:var(--sombra);transform:translateY(-4px)}
.prod-card__img{aspect-ratio:1/1;overflow:hidden;background:var(--fondo-alt)}
.prod-card__img img{width:100%;height:100%;object-fit:cover;transition:transform .6s ease}
.prod-card:hover .prod-card__img img{transform:scale(1.06)}
.prod-card__info{padding:18px 20px;position:relative}
.prod-card__info h3{font-size:1.05rem;font-weight:700;letter-spacing:.5px}
.prod-card__info .meta{color:var(--gris-suave);font-size:.86rem;margin-top:3px}
.prod-card__info .meta b{color:var(--negro)}
.prod-card__cuero{display:inline-block;margin-top:12px;font-size:.72rem;letter-spacing:1.5px;text-transform:uppercase;color:var(--celeste-fuerte);font-weight:600}
.prod-card .btn{margin-top:14px;width:100%;justify-content:center;padding:11px}
.cat-tabs{display:flex;justify-content:center;gap:10px;flex-wrap:wrap;margin:34px 0 0}
.cat-tabs a{padding:9px 20px;border:1px solid var(--linea);border-radius:50px;font-size:.85rem;letter-spacing:1px;text-transform:lowercase;color:var(--gris-texto);transition:var(--transicion)}
.cat-tabs a:hover{border-color:var(--celeste);color:var(--negro)}
.cat-tabs a.activo{background:var(--negro);color:#fff;border-color:var(--negro)}

/* ---------- Footer ---------- */
.footer{background:var(--negro);color:#fff;padding:64px 0 30px}
.footer__grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:40px;margin-bottom:46px}
.footer__logo img{height:46px;margin-bottom:18px}
.footer__col p,.footer__col a{color:#bdbdbd;font-size:.92rem;display:block;margin-bottom:10px;transition:color var(--transicion)}
.footer__col a:hover{color:var(--celeste)}
.footer__col h4{font-size:.85rem;letter-spacing:2px;text-transform:uppercase;margin-bottom:18px;color:#fff}
.footer__rrss{display:flex;gap:14px;margin-top:8px}
.footer__rrss a{width:42px;height:42px;border:1px solid rgba(255,255,255,.25);border-radius:50%;display:flex;align-items:center;justify-content:center;color:#fff;transition:var(--transicion)}
.footer__rrss a:hover{background:var(--celeste);border-color:var(--celeste);transform:translateY(-3px)}
.footer__bottom{border-top:1px solid rgba(255,255,255,.12);padding-top:24px;text-align:center;color:#7d7d7d;font-size:.82rem}

/* ---------- WhatsApp flotante ---------- */
.wa-flotante{
  position:fixed;right:22px;bottom:22px;z-index:60;
  width:58px;height:58px;border-radius:50%;background:#25D366;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 6px 22px rgba(0,0,0,.25);transition:var(--transicion);
}
.wa-flotante:hover{transform:scale(1.08)}
.wa-flotante svg{width:30px;height:30px;fill:#fff}

/* ---------- Animación de entrada ---------- */
.reveal{opacity:0;transform:translateY(28px);transition:opacity .8s ease,transform .8s ease}
.reveal.visible{opacity:1;transform:none}

/* ---------- Responsive ---------- */
@media(max-width:900px){
  .cat-grid,.prod-grid{grid-template-columns:repeat(2,1fr)}
  .historia__grid,.footer__grid{grid-template-columns:1fr;gap:30px}
  .historia{padding:70px 0}
}
@media(max-width:680px){
  .nav__links{
    position:fixed;inset:78px 0 auto 0;background:#fff;flex-direction:column;
    gap:0;padding:10px 0;border-bottom:1px solid var(--linea);
    transform:translateY(-120%);transition:transform var(--transicion);
  }
  .nav__links.abierto{transform:translateY(0)}
  .nav__links a{display:block;padding:14px 24px}
  .nav__burger{display:flex}
  .cat-grid,.prod-grid{grid-template-columns:1fr}
  .sellos__grid{gap:30px}
  .hero__flecha{display:none}
}