:root{
  --negro:#111111;
  --grafito:#2C2C2E;
  --gris:#6E6E73;
  --plata:#A1A1A6;
  --niebla:#D1D1D6;
  --humo:#F5F5F7;
  --blanco:#FFFFFF;
  --nav:52px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;scroll-padding-top:var(--nav)}
body{font-family:-apple-system,BlinkMacSystemFont,"SF Pro Display","SF Pro Text","Inter","Segoe UI",Roboto,Helvetica,Arial,sans-serif;background:var(--blanco);color:var(--gris);line-height:1.55;font-size:19px;-webkit-font-smoothing:antialiased;overflow-x:hidden}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
h1,h2,h3{color:var(--negro);letter-spacing:-.028em;line-height:1.07;font-weight:700}
h1{font-size:clamp(2.6rem,7.4vw,5.6rem);font-weight:800;letter-spacing:-.04em}
h2{font-size:clamp(2rem,4.8vw,3.5rem);margin-bottom:.45em}
h3{font-size:clamp(1.25rem,2vw,1.6rem);margin-bottom:.4em;letter-spacing:-.018em}
p{margin-bottom:1em}
section{scroll-margin-top:var(--nav)}
.wrap{max-width:1080px;margin:0 auto;padding:0 24px}
.estrecho{max-width:760px}
.centro{text-align:center}
.centro .estrecho{margin-left:auto;margin-right:auto}
.sec{padding:128px 0}
.humo{background:var(--humo)}
.oscuro{background:var(--negro);color:var(--plata)}
.oscuro h2,.oscuro h3{color:var(--blanco)}
.sobre{display:block;font-size:.9rem;font-weight:600;letter-spacing:.02em;color:var(--gris);margin-bottom:14px}
.oscuro .sobre{color:var(--plata)}
.lead{font-size:clamp(1.15rem,2vw,1.5rem);line-height:1.4;color:var(--gris);letter-spacing:-.012em}
.oscuro .lead{color:var(--niebla)}
.grande{font-size:clamp(1.5rem,3.2vw,2.4rem);line-height:1.15;color:var(--negro);font-weight:700;letter-spacing:-.025em}
.oscuro .grande{color:var(--blanco)}

/* Navegación */
header{position:fixed;top:0;left:0;right:0;z-index:100;height:var(--nav);background:rgba(255,255,255,.74);backdrop-filter:saturate(180%) blur(20px);-webkit-backdrop-filter:saturate(180%) blur(20px);border-bottom:1px solid rgba(0,0,0,.08);transition:background .3s}
.nav{height:100%;display:flex;align-items:center;justify-content:space-between;max-width:1080px;margin:0 auto;padding:0 24px}
.marca{display:flex;align-items:center;height:100%}
.marca img{height:28px;width:auto}
.marca .wm{display:none;font-weight:700;letter-spacing:-.01em;color:var(--negro);font-size:1rem}
.nav ul{display:flex;gap:36px;list-style:none;align-items:center}
.nav ul a{font-size:.82rem;color:var(--grafito);opacity:.8;transition:opacity .2s,color .2s}
.nav ul a:hover,.nav ul a.activo{opacity:1;color:var(--negro)}
.nav ul a.activo{font-weight:600}
.nav .pill{background:var(--negro);color:var(--blanco)!important;opacity:1!important;padding:6px 16px;border-radius:980px;font-weight:500}
.nav .pill:hover{background:var(--grafito)}
.menu-btn{display:none;background:none;border:0;width:36px;height:36px;cursor:pointer;position:relative}
.menu-btn span{position:absolute;left:8px;right:8px;height:1.5px;background:var(--negro);transition:transform .3s,top .3s,opacity .3s}
.menu-btn span:nth-child(1){top:13px}.menu-btn span:nth-child(2){top:22px}
.menu-btn.abierto span:nth-child(1){top:18px;transform:rotate(45deg)}
.menu-btn.abierto span:nth-child(2){top:18px;transform:rotate(-45deg)}

/* Botones */
.btn{display:inline-block;background:var(--negro);color:var(--blanco);padding:14px 30px;border-radius:980px;font-size:1rem;font-weight:500;border:0;cursor:pointer;font-family:inherit;transition:background .25s,transform .25s}
.btn:hover{background:var(--grafito);transform:scale(1.03)}
.btn.claro{background:var(--blanco);color:var(--negro)}
.btn.claro:hover{background:var(--humo)}
.btn.borde{background:transparent;color:var(--negro);box-shadow:inset 0 0 0 1.5px var(--negro)}
.btn.borde:hover{background:var(--negro);color:var(--blanco)}
.oscuro .btn.borde{color:var(--blanco);box-shadow:inset 0 0 0 1.5px var(--plata)}
.oscuro .btn.borde:hover{background:var(--blanco);color:var(--negro)}
.mas{display:inline-block;font-size:1.1rem;color:var(--negro);font-weight:500}
.mas::after{content:" \203A";transition:margin .2s}
.mas:hover::after{margin-left:6px}
.oscuro .mas{color:var(--blanco)}
.botones{display:flex;gap:14px;flex-wrap:wrap;justify-content:center;margin-top:34px}
.izq .botones{justify-content:flex-start}

/* Home */
#home{padding:calc(var(--nav) + 96px) 0 0;background:var(--blanco);overflow:hidden}
#home h1{max-width:980px;margin:0 auto .35em}
#home .lead{max-width:760px;margin:0 auto 1em}
#home .grande{margin-top:1.2em}
.marco{position:relative;overflow:hidden;border-radius:32px;background:linear-gradient(145deg,var(--niebla),var(--humo));aspect-ratio:16/8;box-shadow:0 30px 80px rgba(0,0,0,.16)}
.marco img,.marco .fondo{position:absolute;left:0;right:0;top:-8%;bottom:-8%;width:100%;height:116%;object-fit:cover;will-change:transform}
.hero-marco{max-width:1180px;margin:72px auto 0;padding:0 24px;transform:scale(.94);transition:transform .2s linear;transform-origin:center top}
.hero-marco .marco{border-radius:36px 36px 0 0;aspect-ratio:16/7.2}

/* Tarjetas */
.tarjetas{display:grid;grid-template-columns:repeat(2,1fr);gap:22px;margin-top:64px}
.tarjeta{background:var(--blanco);border-radius:28px;padding:48px 44px 44px;min-height:300px;display:flex;flex-direction:column;transition:transform .5s cubic-bezier(.2,.8,.2,1),box-shadow .5s}
.tarjeta:hover{transform:translateY(-6px);box-shadow:0 24px 60px rgba(0,0,0,.1)}
.tarjeta .num{font-size:.85rem;font-weight:700;color:var(--plata);letter-spacing:.06em;margin-bottom:auto;padding-bottom:36px}
.tarjeta p{margin:0;font-size:1.05rem}
.oscuro .tarjeta{background:var(--grafito)}
.pilares{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-top:64px}
.pilar{border-top:1px solid rgba(255,255,255,.18);padding-top:28px}
.pilar h3{font-size:1.9rem}
.pilar p{margin:0;font-size:1.05rem}

/* Banda con imagen */
.banda{position:relative;overflow:hidden;padding:180px 0;background:var(--negro)}
.banda .fondo{position:absolute;left:0;right:0;top:-12%;bottom:-12%;background-size:cover;background-position:center;background-color:var(--grafito);opacity:.55;will-change:transform}
.banda::after{content:"";position:absolute;inset:0;background:linear-gradient(to bottom,rgba(17,17,17,.7),rgba(17,17,17,.35) 50%,rgba(17,17,17,.75))}
.banda .wrap{position:relative;z-index:2}
.banda h2{color:var(--blanco);font-size:clamp(2.2rem,5.6vw,4.2rem)}
.banda p{color:var(--niebla);font-size:clamp(1.1rem,1.8vw,1.35rem);line-height:1.45;max-width:700px;margin-left:auto;margin-right:auto}

/* Nosotros */
.dos{display:grid;grid-template-columns:1fr 1fr;gap:22px;margin-top:64px}
.bloque{background:var(--humo);border-radius:28px;padding:48px 44px}
.bloque h3{font-size:1.9rem;margin-bottom:.6em}
.bloque p:last-child{margin-bottom:0}
.humo .bloque{background:var(--blanco)}
.chips{list-style:none;display:flex;flex-wrap:wrap;gap:10px;margin-top:34px}
.chips li{background:var(--humo);color:var(--grafito);padding:10px 22px;border-radius:980px;font-size:1rem;font-weight:500}
.humo .chips li{background:var(--blanco)}
.centro .chips{justify-content:center}
.split{display:grid;grid-template-columns:1fr 1fr;gap:72px;align-items:center}
.split .marco{aspect-ratio:4/5;border-radius:32px}
.pasos{display:grid;grid-template-columns:repeat(5,1fr);gap:18px;margin-top:64px;counter-reset:p}
.paso{background:var(--blanco);border-radius:24px;padding:30px 24px;min-height:240px}
.paso .num{display:block;font-size:2.6rem;font-weight:800;color:var(--niebla);letter-spacing:-.04em;line-height:1;margin-bottom:34px}
.paso h3{font-size:1.25rem}
.paso p{font-size:.95rem;margin:0}
.dif{display:grid;grid-template-columns:repeat(3,1fr);gap:46px 40px;margin-top:64px}
.dif div{border-top:1.5px solid var(--negro);padding-top:20px}
.dif h3{font-size:1.3rem}
.dif p{margin:0;font-size:1rem}
.valores{display:grid;grid-template-columns:repeat(5,1fr);gap:18px;margin-top:64px}
.valor{background:var(--grafito);border-radius:24px;padding:30px 24px}
.valor h3{font-size:1.25rem}
.valor p{margin:0;font-size:.95rem}
.cierre{margin-top:96px}

/* Contacto */
.contacto-grid{display:grid;grid-template-columns:1.35fr 1fr;gap:56px;margin-top:64px;align-items:start}
.lista{list-style:none;margin:0 0 1.2em}
.lista li{padding:11px 0;border-bottom:1px solid var(--niebla);font-size:1.02rem;color:var(--grafito)}
.lista li:first-child{border-top:1px solid var(--niebla)}
.sel{display:flex;flex-wrap:wrap;gap:10px;margin:18px 0 6px}
.chip{background:var(--blanco);border:1.5px solid var(--niebla);color:var(--grafito);padding:10px 20px;border-radius:980px;font:inherit;font-size:.95rem;font-weight:500;cursor:pointer;transition:all .2s}
.chip:hover{border-color:var(--negro)}
.chip.on{background:var(--negro);border-color:var(--negro);color:var(--blanco)}
form{background:var(--blanco);border-radius:28px;padding:40px;margin-top:28px;box-shadow:0 16px 50px rgba(0,0,0,.07)}
label{display:block;font-size:.82rem;font-weight:600;color:var(--grafito);margin:18px 0 7px}
input,textarea{width:100%;padding:14px 16px;background:var(--humo);border:1.5px solid transparent;border-radius:14px;font:inherit;font-size:1rem;color:var(--negro);transition:border-color .2s,background .2s}
input:focus,textarea:focus{outline:0;border-color:var(--negro);background:var(--blanco)}
textarea{min-height:120px;resize:vertical}
.fila{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.nota{font-size:.85rem;margin:16px 0 0;color:var(--gris)}
form .botones{justify-content:flex-start;margin-top:18px}
.datos{position:sticky;top:calc(var(--nav) + 28px);background:var(--negro);color:var(--plata);border-radius:28px;padding:44px 40px}
.datos h3{color:var(--blanco);font-size:1.8rem;margin-bottom:1em}
.dato{margin-bottom:26px}
.dato small{display:block;font-size:.8rem;font-weight:600;color:var(--plata);margin-bottom:4px}
.dato a,.dato span{font-size:1.15rem;font-weight:600;color:var(--blanco)}
.dato a:hover{text-decoration:underline}
.datos .btn{margin-top:8px}

/* Pie */
footer{background:var(--humo);padding:44px 0 34px;font-size:.82rem}
.foot{display:flex;justify-content:space-between;gap:28px;flex-wrap:wrap;padding-bottom:22px;border-bottom:1px solid var(--niebla)}
footer strong{color:var(--negro);font-size:1rem;display:block;margin-bottom:4px}
.foot-links{display:flex;gap:26px;flex-wrap:wrap}
.foot-links a:hover{color:var(--negro);text-decoration:underline}
.copy{padding-top:18px;margin:0}

/* WhatsApp flotante */
.wa{position:fixed;right:22px;bottom:22px;z-index:90;width:54px;height:54px;border-radius:50%;background:var(--negro);display:flex;align-items:center;justify-content:center;box-shadow:0 10px 30px rgba(0,0,0,.28);transition:transform .25s,opacity .3s}
.wa:hover{transform:scale(1.08)}
.wa svg{width:28px;height:28px;fill:#fff}

/* Aparición al hacer scroll */
.rev{opacity:0;transform:translateY(40px);transition:opacity 1s cubic-bezier(.2,.8,.2,1),transform 1s cubic-bezier(.2,.8,.2,1)}
.rev.vis{opacity:1;transform:none}
.d1{transition-delay:.08s}.d2{transition-delay:.16s}.d3{transition-delay:.24s}.d4{transition-delay:.32s}.d5{transition-delay:.4s}

@media(max-width:980px){
  .pasos,.valores{grid-template-columns:repeat(2,1fr)}
  .split{grid-template-columns:1fr;gap:44px}
  .split .marco{aspect-ratio:16/11}
  .contacto-grid{grid-template-columns:1fr}
  .datos{position:static}
}
@media(max-width:760px){
  body{font-size:17px}
  .sec{padding:84px 0}
  .menu-btn{display:block}
  .nav ul{display:none;position:fixed;top:var(--nav);left:0;right:0;background:rgba(255,255,255,.97);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);flex-direction:column;align-items:stretch;gap:0;padding:8px 24px 24px;border-bottom:1px solid rgba(0,0,0,.08)}
  .nav ul.abierto{display:flex}
  .nav ul a{display:block;padding:15px 0;font-size:1.2rem;border-bottom:1px solid var(--humo);opacity:1}
  .nav .pill{text-align:center;margin-top:16px;padding:14px;font-size:1.05rem;border-bottom:0!important}
  .tarjetas,.dos,.pilares,.dif,.fila{grid-template-columns:1fr}
  .pasos,.valores{grid-template-columns:1fr}
  .paso{min-height:0}
  .tarjeta{min-height:0;padding:38px 30px}
  .bloque,form,.datos{padding:32px 26px}
  .hero-marco{margin-top:48px;padding:0 14px}
  .hero-marco .marco{aspect-ratio:4/3}
  .banda{padding:120px 0}
  .cierre{margin-top:64px}
}
@media(prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *{transition:none!important;animation:none!important}
  .rev{opacity:1;transform:none}
  .hero-marco{transform:none}
}