/* PRI5MA · estilos comunes a todas las páginas: colores, botones, barra superior, encabezados, pie y animaciones */
:root{
  --negro:#0b0c0e; --negro-2:#131518; --negro-3:#1b1e22;
  --claro:#f4f1ec; --crema:#f6f3ee; --blanco:#fff;
  --tinta:#16191c; --gris:#6d7277; --gris-c:#a4a9ae;
  --cian:#1aa7f0; --cian-o:#0a86c9; --azul:#03a0f0; --wa:#25d366;
  --linea-o:rgba(255,255,255,.1); --linea-c:#e4dfd7;
  --radio:22px; --ancho:1240px;
  --sombra:0 1px 2px rgba(20,20,20,.04),0 12px 32px rgba(20,20,20,.07);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
html,body{margin:0}
/* El carrusel de proyectos llega al borde con margin-right en 50vw, que incluye la barra de desplazamiento
   y dejaba la página 8 px más ancha. Se recorta en su sección (clip no crea scroll ni rompe sticky). */
section:has(.proy-pista){overflow-x:clip}
body{font:17px/1.55 Outfit,system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;color:var(--claro);background:var(--negro);-webkit-font-smoothing:antialiased}
img,video{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4{margin:0;font-weight:500;letter-spacing:-.02em;line-height:1.05}
p{margin:0}
.envol{max-width:var(--ancho);margin:0 auto;padding:0 32px}
.oculto{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
:focus-visible{outline:2px solid var(--cian);outline-offset:3px;border-radius:8px}

/* ---------- Botones ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:12px;height:58px;padding:0 30px;border-radius:99px;font-size:17px;font-weight:500;white-space:nowrap;transition:transform .25s,background .25s,color .25s,border-color .25s}
.btn svg{width:18px;height:18px;transition:transform .25s}
.btn:hover svg{transform:translateX(3px)}
.btn-blanco{background:#fff;color:var(--tinta)}
.btn-blanco:hover{background:var(--cian);color:#fff}
.btn-linea{border:1.5px solid rgba(255,255,255,.55);color:#fff}
.btn-linea:hover{border-color:#fff;background:rgba(255,255,255,.08)}
.btn-tinta{background:var(--tinta);color:#fff}
.btn-tinta:hover{background:var(--cian)}
.btn-linea-t{border:1.5px solid var(--tinta);color:var(--tinta)}
.btn-linea-t:hover{background:var(--tinta);color:#fff}
.enlace{display:inline-flex;align-items:center;gap:8px;font-weight:500;border-bottom:1.5px solid currentColor;padding-bottom:3px}
.enlace svg{width:15px;height:15px;transition:transform .25s}
.enlace:hover svg{transform:translateX(3px)}

/* Flechas redondas de los carruseles */
.flechas{display:flex;gap:10px}
.flecha-btn{width:52px;height:52px;border-radius:50%;display:grid;place-items:center;cursor:pointer;border:1.5px solid currentColor;background:transparent;color:inherit;opacity:.85;transition:background .25s,color .25s,opacity .25s}
.flecha-btn:hover{opacity:1;background:var(--tinta);border-color:var(--tinta);color:#fff}
.flecha-btn:disabled{opacity:.25;cursor:default;background:transparent;color:inherit;border-color:currentColor}
.flecha-btn svg{width:20px;height:20px}

/* Pista de carrusel: scroll horizontal con imán */
.pista{display:flex;overflow-x:auto;scroll-snap-type:x mandatory;scrollbar-width:none;overscroll-behavior-x:contain}
.pista::-webkit-scrollbar{display:none}
.pista > *{scroll-snap-align:start;flex:none}
.pista.arrastrando{scroll-snap-type:none;cursor:grabbing;user-select:none}
.pista img{-webkit-user-drag:none}

/* ---------- Barra superior ---------- */
.barra{position:fixed;inset:0 0 auto 0;z-index:50;transition:background .35s,backdrop-filter .35s,border-color .35s;border-bottom:1px solid transparent}
.barra.fija{background:rgba(11,12,14,.78);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-color:var(--linea-o)}
.barra .envol{display:flex;align-items:center;justify-content:space-between;height:92px;max-width:1440px;transition:height .35s}
.barra.fija .envol{height:72px}
.marca img{height:34px;width:auto}
.nav{display:flex;align-items:center;gap:36px}
.nav a:not(.btn-wa){font-size:16px;color:rgba(255,255,255,.82);transition:color .2s}
.nav a:not(.btn-wa):hover,.nav a[aria-current]{color:#fff}
.nav a[aria-current]{box-shadow:0 1.5px 0 var(--cian)}
.btn-wa{display:inline-flex;align-items:center;gap:9px;height:44px;padding:0 20px;border-radius:99px;border:1.5px solid var(--wa);color:var(--wa);font-weight:500;transition:background .2s,color .2s}
.btn-wa:hover{background:var(--wa);color:#08361a}
.btn-wa svg{width:19px;height:19px}
/* Desplegable de "Stands y eventos": se abre con el mouse o con el teclado (Tab) */
.nav-grupo{position:relative;display:flex;align-items:center}
.nav-sub{position:absolute;top:100%;left:-18px;min-width:250px;padding:16px 0 0;opacity:0;pointer-events:none;transform:translateY(6px);transition:opacity .2s,transform .2s}
.nav-sub::before{content:"";position:absolute;inset:10px 0 0;background:rgba(11,12,14,.96);border:1px solid var(--linea-o);border-radius:16px;box-shadow:0 18px 40px rgba(0,0,0,.35);z-index:-1}
.nav-sub a{display:block;padding:11px 20px;font-size:15px!important}
.nav-sub a:first-child{margin-top:8px}.nav-sub a:last-child{margin-bottom:8px}
.nav-grupo:hover .nav-sub,.nav-grupo:focus-within .nav-sub{opacity:1;pointer-events:auto;transform:none}
.menu-btn{display:none;width:44px;height:44px;border:0;border-radius:12px;background:rgba(255,255,255,.08);color:#fff;cursor:pointer}
.menu-btn span{display:block;width:18px;height:1.5px;background:currentColor;margin:4px auto;transition:transform .25s,opacity .25s}

/* ---------- Encabezados de sección ---------- */
.cab{display:flex;align-items:flex-end;justify-content:space-between;gap:24px 60px;flex-wrap:wrap;margin-bottom:52px}
.cab > div{max-width:720px}
.kicker{display:inline-flex;align-items:center;gap:12px;font-size:14px;letter-spacing:.16em;text-transform:uppercase;font-weight:500;color:var(--cian)}
.kicker::before{content:"";width:36px;height:1.5px;background:currentColor}
.cab h2{font-size:clamp(38px,4.6vw,64px);margin-top:18px}
.cab p{margin-top:18px;font-size:19px;font-weight:300;max-width:600px}
.seccion{padding:120px 0}
.claro{background:var(--claro);color:var(--tinta)}
.claro .kicker{color:var(--cian-o)}
.claro .cab p{color:#555b61}

/* ---------- Tarjetas de proyecto (portada, página de proyectos y ficha) ---------- */
.proy-pista{gap:20px;margin-right:calc(50% - 50vw);padding-right:32px;padding-bottom:6px}
.proy{position:relative;width:min(540px,42vw);aspect-ratio:4/4.5;border-radius:var(--radio);overflow:hidden;isolation:isolate;display:flex;flex-direction:column;justify-content:flex-end;padding:32px;color:#fff;background:#1b1e21}
.proy img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:-2;transition:transform .9s cubic-bezier(.2,.8,.2,1)}
.proy:hover img{transform:scale(1.05)}
.proy::before{content:"";position:absolute;inset:0;z-index:-1;background:linear-gradient(180deg,rgba(0,0,0,.25) 0%,rgba(0,0,0,0) 28%,rgba(0,0,0,.2) 50%,rgba(0,0,0,.88) 100%)}
.proy .etq{position:absolute;top:22px;left:22px;background:rgba(255,255,255,.16);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border:1px solid rgba(255,255,255,.24);border-radius:99px;padding:7px 14px;font-size:12.5px;letter-spacing:.08em;text-transform:uppercase;font-weight:500}
.proy .cli{font-size:14px;letter-spacing:.04em;color:rgba(255,255,255,.72)}
.proy h3{font-size:clamp(26px,2.4vw,34px);margin-top:8px}
.proy p{margin-top:10px;color:rgba(255,255,255,.82);font-size:15.5px;max-width:420px}
.proy .ver{margin-top:20px;display:inline-flex;align-items:center;gap:10px;font-weight:500}
.proy .ver svg{width:16px;height:16px;transition:transform .25s}
.proy:hover .ver svg{transform:translateX(4px)}
.proy.todos{background:var(--tinta);justify-content:space-between}
.proy.todos::before{display:none}
.proy.todos .grande{font-size:clamp(34px,3.2vw,46px);font-weight:500;letter-spacing:-.03em;line-height:1.05}
.proy.todos .mini{display:flex;gap:8px}
.proy.todos .mini img{position:static;width:64px;height:64px;border-radius:14px;object-fit:cover;z-index:0}

/* ---------- Pie ---------- */
footer{border-top:1px solid var(--linea-o);padding:56px 0 40px;color:var(--gris-c);font-size:15px}
footer .envol{max-width:1440px}
.pie-top{display:flex;flex-wrap:wrap;justify-content:space-between;gap:32px;padding-bottom:36px;border-bottom:1px solid var(--linea-o)}
.pie-top img{height:30px;width:auto}
.pie-top p{margin-top:14px;max-width:340px}
.pie-top .pie-grupo{margin-top:10px}
.pie-top .pie-grupo a{color:#fff;border-bottom:1px solid rgba(255,255,255,.35)}
.pie-col{display:flex;gap:52px;flex-wrap:wrap}
.pie-col div{display:grid;gap:10px;align-content:start}
.pie-col b{color:#fff;font-weight:500;margin-bottom:4px}
.pie-col a:hover{color:#fff}
.pie-bajo{display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;padding-top:26px;font-size:14px}
.pie-bajo a{color:#fff}

/* ---------- Aparición al hacer scroll ---------- */
.js .rev{opacity:0;transform:translateY(28px);transition:opacity .9s cubic-bezier(.2,.8,.2,1),transform .9s cubic-bezier(.2,.8,.2,1)}
.js .rev.ver{opacity:1;transform:none}
.js .rev.d1{transition-delay:.08s}.js .rev.d2{transition-delay:.16s}.js .rev.d3{transition-delay:.24s}.js .rev.d4{transition-delay:.32s}

/* ---------- Celular ---------- */
@media (max-width:900px){
  body{font-size:16px}
  .envol{padding:0 20px}
  .barra .envol{height:70px}
  .marca img{height:26px}
  .menu-btn{display:block}
  .nav{position:fixed;inset:70px 0 auto 0;flex-direction:column;align-items:stretch;gap:0;background:rgba(11,12,14,.97);backdrop-filter:blur(14px);padding:8px 20px 24px;border-bottom:1px solid var(--linea-o);transform:translateY(-8px);opacity:0;pointer-events:none;transition:opacity .25s,transform .25s}
  .nav a:not(.btn-wa){padding:16px 0;border-bottom:1px solid var(--linea-o);font-size:18px}
  .nav a[aria-current]{box-shadow:none;color:var(--cian)}
  .nav{max-height:calc(100svh - 70px);overflow-y:auto}
  .nav-grupo{display:block}
  .nav-sub{position:static;opacity:1;pointer-events:auto;transform:none;padding:0 0 0 16px;min-width:0}
  .nav-sub::before{display:none}
  .nav-sub a{padding:12px 0!important;font-size:16px!important;color:rgba(255,255,255,.66)!important}
  .nav-sub a:first-child{margin-top:0}.nav-sub a:last-child{margin-bottom:0}
  .nav .btn-wa{margin-top:18px;justify-content:center;height:52px}
  .barra.abierta .nav{opacity:1;transform:none;pointer-events:auto}
  .barra.abierta{background:rgba(11,12,14,.97)}
  .barra.abierta .menu-btn span:nth-child(1){transform:translateY(5.5px) rotate(45deg)}
  .barra.abierta .menu-btn span:nth-child(2){opacity:0}
  .barra.abierta .menu-btn span:nth-child(3){transform:translateY(-5.5px) rotate(-45deg)}
  .seccion{padding:80px 0}
  .cab{margin-bottom:36px}
  .cab p{font-size:17px}
  .flecha-btn{width:44px;height:44px}
  .pie-col{gap:36px}
  .proy-pista{gap:14px;margin-right:-20px;padding-right:20px}
  .proy{width:84vw;aspect-ratio:4/5;padding:24px}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation:none!important;transition:none!important}
  .js .rev{opacity:1;transform:none}
}