/* ============================================
   ISTRIA MAESTRANZA — Hoja de estilos global
   ============================================ */
:root{
  --negro:#0d0e10;--grafito:#16181c;--acero:#2a2e35;--acero-claro:#454b55;
  --humo:#8b929e;--niebla:#c4c9d2;--blanco:#f4f6f9;
  --rojo:#e0081c;--rojo-vivo:#ff1a2e;--rojo-oscuro:#a80014;--radio:2px;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{background:var(--negro);color:var(--niebla);font-family:'Inter',sans-serif;line-height:1.6;overflow-x:hidden}
h1,h2,h3,h4,.display{font-family:'Oswald',sans-serif;letter-spacing:.01em;line-height:1.05;color:var(--blanco)}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.eyebrow{font-family:'Oswald',sans-serif;text-transform:uppercase;letter-spacing:.28em;font-size:.72rem;font-weight:600;color:var(--rojo-vivo);display:inline-block}
.wrap{max-width:1240px;margin:0 auto;padding:0 28px}
section{position:relative}

/* ---------- NAV ---------- */
header.nav{position:fixed;top:0;left:0;right:0;z-index:100;display:flex;align-items:center;justify-content:space-between;padding:16px 28px;background:rgba(13,14,16,.72);backdrop-filter:blur(12px);border-bottom:1px solid rgba(255,255,255,.06);transition:padding .3s,background .3s}
header.nav.solid{background:rgba(13,14,16,.94)}
.logo{display:flex;align-items:center}
.logo-img{height:42px;width:auto;display:block}
nav.links{display:flex;gap:34px;align-items:center}
nav.links a{font-size:.9rem;color:var(--niebla);font-weight:500;transition:color .2s;position:relative;font-family:'Oswald',sans-serif;text-transform:uppercase;letter-spacing:.05em}
nav.links a:hover,nav.links a.active{color:var(--blanco)}
nav.links a::after{content:'';position:absolute;left:0;bottom:-6px;width:0;height:2px;background:var(--rojo);transition:width .25s}
nav.links a:hover::after,nav.links a.active::after{width:100%}
.nav-cta{background:var(--rojo);color:#fff!important;padding:11px 22px;border-radius:var(--radio);font-weight:600;font-size:.82rem;transition:background .2s,transform .2s}
.nav-cta:hover{background:var(--rojo-vivo);transform:translateY(-1px)}
.nav-cta::after{display:none}
.burger{display:none;flex-direction:column;gap:5px;cursor:pointer;background:none;border:0}
.burger span{width:26px;height:2px;background:var(--blanco);transition:.3s}

/* ---------- BOTONES ---------- */
.btn{display:inline-flex;align-items:center;gap:10px;font-family:'Oswald',sans-serif;font-weight:600;text-transform:uppercase;letter-spacing:.08em;font-size:.9rem;padding:15px 30px;border-radius:var(--radio);cursor:pointer;border:0;transition:transform .2s,background .2s,border-color .2s}
.btn-primary{background:var(--rojo);color:#fff}
.btn-primary:hover{background:var(--rojo-vivo);transform:translateY(-2px)}
.btn-ghost{background:rgba(255,255,255,.05);color:var(--blanco);border:1px solid var(--acero-claro)}
.btn-ghost:hover{border-color:var(--rojo);background:rgba(255,255,255,.08)}
.btn-white{background:#fff;color:var(--rojo)}
.btn-white:hover{background:var(--negro);color:#fff;transform:translateY(-2px)}

/* ---------- SECCIONES ---------- */
.section-pad{padding:110px 0}
.section-head{max-width:640px;margin-bottom:56px}
.section-head h2{font-size:clamp(2rem,4vw,3.2rem);text-transform:uppercase;font-weight:700;margin:16px 0 18px}
.section-head p{color:var(--humo);font-size:1.05rem}

/* ---------- PAGE HERO (interior) ---------- */
.page-hero{min-height:52vh;display:flex;align-items:flex-end;padding:150px 0 60px;position:relative;overflow:hidden;border-bottom:1px solid rgba(255,255,255,.06)}
.page-hero-bg{position:absolute;inset:0;z-index:0;background-size:cover;background-position:center;transform:scale(1.05)}
.page-hero-overlay{position:absolute;inset:0;z-index:1;background:linear-gradient(180deg,rgba(13,14,16,.8),rgba(13,14,16,.6) 40%,rgba(13,14,16,.9))}
.page-hero .wrap{position:relative;z-index:2;width:100%}
.page-hero h1{font-size:clamp(2.6rem,6vw,4.8rem);text-transform:uppercase;font-weight:700;margin:14px 0 0}
.breadcrumb{font-size:.82rem;color:var(--humo);font-family:'Oswald',sans-serif;text-transform:uppercase;letter-spacing:.1em}
.breadcrumb a:hover{color:var(--rojo-vivo)}
.breadcrumb span{color:var(--rojo-vivo)}

/* ---------- CTA BANNER ---------- */
.cta-banner{background:linear-gradient(120deg,var(--rojo-oscuro),var(--rojo));padding:80px 0;position:relative;overflow:hidden}
.cta-banner .wrap{position:relative;z-index:2;text-align:center}
.cta-banner h2{font-size:clamp(2rem,4.5vw,3.4rem);text-transform:uppercase;color:#fff;font-weight:700;max-width:22ch;margin:0 auto 14px}
.cta-banner p{color:rgba(255,255,255,.9);font-size:1.1rem;margin-bottom:32px}
.cta-arc{position:absolute;right:-100px;top:-80px;opacity:.15;z-index:1}

/* ---------- FOOTER ---------- */
footer{background:var(--negro);padding:60px 0 30px;border-top:1px solid rgba(255,255,255,.08)}
.foot-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:40px;margin-bottom:40px}
.foot-grid p{font-size:.9rem;color:var(--humo);max-width:38ch;margin-top:16px}
.foot-col h5{font-family:'Oswald',sans-serif;text-transform:uppercase;letter-spacing:.12em;font-size:.82rem;color:var(--blanco);margin-bottom:16px}
.foot-col a{display:block;color:var(--humo);font-size:.92rem;padding:5px 0;transition:color .2s}
.foot-col a:hover{color:var(--rojo-vivo)}
.foot-bottom{border-top:1px solid rgba(255,255,255,.08);padding-top:24px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;font-size:.82rem;color:var(--humo)}
footer .logo-img{height:50px;margin-bottom:4px}

/* ---------- WhatsApp flotante ---------- */
.wa-float{position:fixed;bottom:26px;right:26px;z-index:200;width:62px;height:62px;border-radius:50%;background:#25D366;display:flex;align-items:center;justify-content:center;box-shadow:0 8px 30px rgba(37,211,102,.4);transition:transform .2s;animation:pulse 2.5s infinite}
.wa-float:hover{transform:scale(1.08)}
@keyframes pulse{0%{box-shadow:0 0 0 0 rgba(37,211,102,.5)}70%{box-shadow:0 0 0 18px rgba(37,211,102,0)}100%{box-shadow:0 0 0 0 rgba(37,211,102,0)}}

/* ---------- Reveal ---------- */
.reveal{opacity:0;transform:translateY(30px);transition:opacity .7s ease,transform .7s ease}
.reveal.in{opacity:1;transform:none}

/* ---------- RESPONSIVE NAV/FOOTER ---------- */
@media(max-width:960px){
  nav.links{position:fixed;top:0;right:0;height:100vh;width:min(80vw,320px);background:var(--grafito);flex-direction:column;justify-content:center;gap:28px;transform:translateX(100%);transition:transform .35s;border-left:1px solid rgba(255,255,255,.1);z-index:99}
  nav.links.open{transform:none}
  .burger{display:flex;z-index:100}
  .foot-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:560px){
  .foot-grid{grid-template-columns:1fr}
  .wrap{padding:0 20px}
}