:root{--bg:#0b0c0f;--panel:#111317;--text:#e5e7eb;--muted:#a5adbb;--brand:#46a5ff;--brand-ink:#0a5aa8;--card:#16181d;--border:#242731}
*{box-sizing:border-box}html,body{height:100%}
html{scroll-behavior:smooth}
body{margin:0;font:16px/1.6 system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial;color:var(--text);background:linear-gradient(180deg,#0b0c0f 0,#0d1016 100%)}
img{max-width:100%;height:auto;display:block}
a{color:var(--text);text-decoration:none}
.container{max-width:1100px;margin:0 auto;padding:0 20px}
.row{display:flex;gap:16px}.between{justify-content:space-between}.center{align-items:center;text-align:center}
.grid{display:grid;gap:20px}.grid.two{grid-template-columns:repeat(2,minmax(0,1fr))}.grid.three{grid-template-columns:repeat(3,minmax(0,1fr))}
@media (max-width:900px){
  .grid.two,.grid.three{grid-template-columns:1fr}
  /* Mantener acceso a Contacto en móvil */
  .nav{display:flex}
  .nav a:not(.btn){display:none}
}
.mt-24{margin-top:24px}

/* Header */
.site-header{position:sticky;top:0;backdrop-filter:saturate(1.2) blur(10px);
  background:rgba(11,12,15,.72);border-bottom:1px solid var(--border);z-index:10;
  box-shadow:0 2px 12px rgba(0,0,0,.35)}
.site-header .container{padding:10px 20px;min-height:60px}
.brand{display:flex;gap:10px;align-items:center;font-weight:700}
.brand span{letter-spacing:.2px;font-weight:700}
.brand img{width:40px;height:40px;border-radius:50%;object-fit:cover;box-shadow:0 0 0 2px rgba(255,255,255,.08)}
.nav{display:flex;gap:4px}
.nav a{padding:8px 12px;color:var(--muted);border-radius:10px;transition:background .15s ease,color .15s ease}
.nav a:hover{color:var(--text);background:rgba(255,255,255,.04)}
.nav .btn{padding:.45rem .75rem;border-radius:10px;background:transparent;border-color:#303542}
.nav .btn:hover{background:rgba(255,255,255,.05);border-color:#3a4150}
.btn{display:inline-block;border:1px solid var(--border);padding:.55rem .9rem;border-radius:10px;background:var(--card);color:var(--text)}
.btn:hover{border-color:#364152}
.btn.primary{background:linear-gradient(180deg,#3ea3ff,#1c7bdc);border-color:#2d6fbf;color:#fff}

/* Hero */
.hero{min-height:68vh;display:flex;align-items:center;justify-content:center;text-align:center;padding:72px 0 40px}
.hero h1{font-size:48px;line-height:1.1;margin:0 0 10px}
.hero h1,.hero .lead{ text-shadow:0 2px 10px rgba(0,0,0,.55),0 6px 18px rgba(0,0,0,.35)}
.lead{color:var(--muted);max-width:720px;margin:0 auto 18px}
.actions{display:flex;gap:12px;justify-content:center}

.hero--landing{
  position:relative;
  min-height:82vh;
  align-items:flex-end;
  padding:0;
  color:#fff;
  overflow:hidden;
}
.hero--landing .hero-visual{
  position:absolute;
  inset:0;
  z-index:-2;
  background:
    radial-gradient(1000px 480px at 50% -160px,rgba(70,165,255,.24),transparent 70%),
    image-set(url('photos/hero.webp') type('image/webp'), url('photos/hero.png') type('image/png'));
  background-size:cover, min(1440px, 100vw) auto;
  background-position:top center,center 32%;
  background-repeat:no-repeat;
}
.hero--landing::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(180deg,rgba(11,12,15,.08) 0%,rgba(11,12,15,.68) 58%,rgba(11,12,15,.92) 100%);
  z-index:-1;
}
.hero--landing .hero-content{
  position:relative;
  width:100%;
  max-width:780px;
  padding:clamp(200px,32vh,300px) 20px 110px;
  display:flex;
  flex-direction:column;
  align-items:center;
  gap:22px;
}
.hero--landing h1{font-size:54px;line-height:1.05;margin:0}
.hero--landing h1,
.hero--landing .lead{ text-shadow:0 10px 30px rgba(0,0,0,.48)}
.hero--landing .lead{color:#e7efff;max-width:640px;margin:0}
.hero--landing .actions{gap:16px}
.hero--landing .actions .btn{min-width:210px}
.hero-media--mobile{display:none}

@media (max-width:900px){
  .hero{padding:56px 0}
  .hero--landing{min-height:auto;padding:0;color:var(--text)}
  .hero--landing::after{display:none}
  .hero--landing .hero-visual{display:none}
  .hero--landing .hero-content{
    max-width:520px;
    padding:32px 20px 48px;
    gap:20px;
    align-items:center;
  }
  .hero--landing h1{font-size:36px}
  .hero--landing .lead{color:var(--muted)}
  .hero--landing .actions{
    flex-direction:column;
    gap:12px;
    width:100%;
  }
  .hero--landing .actions .btn{min-width:0;width:100%}
  .hero-media--mobile{
    display:block;
    width:100%;
    margin:0 auto 14px;
    border-radius:20px;
    overflow:hidden;
    box-shadow:0 18px 36px rgba(0,0,0,.32);
  }
  .hero-media--mobile picture,
  .hero-media--mobile img{display:block;width:100%;height:auto}
  .hero-media--mobile img{object-fit:cover}
}

/* Sections */
section{padding:48px 0;border-top:1px solid var(--border)}
.home-about .card,.services .card,.project,.card{background:var(--card);border:1px solid var(--border);border-radius:14px;padding:16px}
.card .thumb{width:100%;height:160px;object-fit:cover;border-radius:10px;margin-bottom:10px;background:#0f1116}
/* Variante: mostrar la imagen completa (alejar plano) */
.thumb.contain{object-fit:contain}
/* Mostrar contenido completo priorizando la parte superior */
.top-contain{object-fit:contain;object-position:top center}
/* Llenar el contenedor recortando por abajo (prioriza parte superior) */
.top-cover{object-fit:cover;object-position:top center}
.checklist{margin:0;padding-left:20px}
.checklist li{margin:.35rem 0}

/* Mission icons */
.features{grid-template-columns:repeat(3,minmax(0,1fr))}
.feature{display:flex;gap:12px}
.feature .icon{flex:0 0 48px}
.feature p{color:var(--muted);margin:0}

/* Stats */
.stats{grid-template-columns:repeat(3,minmax(0,1fr))}
.stat{background:var(--card);border:1px solid var(--border);border-radius:14px;padding:18px;text-align:center}
.stat .num{font-size:38px;font-weight:700;color:#cfe9ff}
.stat .label{color:var(--muted)}

/* Projects */
.project img{width:100%;height:180px;object-fit:cover;border-radius:10px;background:#0f1116}
.project h3{margin:.6rem 0}
.project p{color:var(--muted)}

/* CTA */
.cta{background:linear-gradient(90deg, rgba(70,165,255,.15), transparent)}

/* Newsletter */
.newsletter .form{display:flex;gap:10px;justify-content:center;margin-top:12px}
.newsletter input[type=email]{width:280px;max-width:100%;padding:.6rem .8rem;border-radius:8px;border:1px solid var(--border);background:var(--panel);color:var(--text)}
.newsletter button{padding:.6rem 1rem}

/* Contact form */
.contact-card{max-width:720px;margin:20px auto 0;padding:22px}
.form p{margin:0 0 12px}
.form label{display:block;font-size:14px;font-weight:600;margin:0 0 6px}
.input,.textarea{width:100%;padding:.65rem .8rem;border-radius:10px;border:1px solid var(--border);background:var(--panel);color:var(--text);transition:border-color .15s ease, box-shadow .15s ease, background .15s ease}
.input::placeholder,.textarea::placeholder{color:var(--muted)}
.input:focus,.textarea:focus{outline:none;border-color:#2d6fbf;box-shadow:0 0 0 3px rgba(70,165,255,.18);background:#0f1217}
.btn-group{display:flex;gap:10px;flex-wrap:wrap;align-items:center}

/* Footer */
.site-footer{padding:22px 0;border-top:1px solid var(--border);background:rgba(11,12,15,.6)}
.footer-cols{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:20px}
.footer-cols h4{margin:0 0 8px;font-size:16px}
.footer-cols a{display:block;color:var(--muted);margin:4px 0}
.footer-cols a:hover{color:var(--text)}
@media (max-width:900px){.features,.stats,.footer-cols{grid-template-columns:1fr}}
.social a{color:var(--muted);margin-left:12px}
.social a:hover{color:var(--text)}

/* Inline icons */
.icon-inline{width:16px;height:16px;vertical-align:middle;margin-right:6px;opacity:.9;display:inline-block}

/* WhatsApp floating button */
.whatsapp-float{
  position:fixed;right:18px;bottom:18px;z-index:9999;
  width:52px;height:52px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:linear-gradient(180deg,#25d366,#1ebe5d);
  color:#fff;border:1px solid rgba(18,140,126,.35);
  box-shadow:0 8px 24px rgba(0,0,0,.28);
  transition:transform .15s ease, box-shadow .15s ease, filter .15s ease;
  animation:wa-bounce 3.2s ease-in-out infinite 1.2s;
  will-change:transform;
}
.whatsapp-float:hover{animation-play-state:paused;transform:translateY(-2px) scale(1.03);box-shadow:0 12px 28px rgba(0,0,0,.34)}
.whatsapp-float img{width:24px;height:24px}

/* WhatsApp pulse ring */
.whatsapp-float{isolation:isolate}
.whatsapp-float::before{
  content:"";position:absolute;inset:-6px;border-radius:50%;
  background:rgba(37,211,102,.22);filter:blur(2px);
  animation:wa-ping 1.8s ease-out infinite;z-index:0;pointer-events:none;
}
.whatsapp-float img{position:relative;z-index:1}

@keyframes wa-ping{0%{transform:scale(.9);opacity:.7}70%{transform:scale(1.3);opacity:0}100%{transform:scale(1.3);opacity:0}}

/* WhatsApp subtle bounce */
@keyframes wa-bounce{
  0%,60%,100%{transform:translateY(0)}
  12%{transform:translateY(-4px)}
  22%{transform:translateY(0)}
  30%{transform:translateY(-7px)}
  40%{transform:translateY(0)}
}

/* CTA gentle pulse */
.cta-animate{animation:cta-pop 2.8s cubic-bezier(.22,.68,0,1.12) infinite;will-change:transform;position:relative;overflow:hidden}
.cta-animate:hover{transform:translateY(-1px) scale(1.04)}
@keyframes cta-pop{0%,100%{transform:scale(1)}40%{transform:translateY(-2px) scale(1.05)}}
.cta-animate::after{content:"";position:absolute;inset:0;pointer-events:none;border-radius:inherit;transform:translateX(-130%);
  background:linear-gradient(120deg,transparent 0,rgba(255,255,255,.18) 50%,transparent 100%);
}
.cta-animate:hover::after{transition:transform .7s ease;transform:translateX(130%)}

/* Respect reduced motion */
@media (prefers-reduced-motion: reduce){
  .cta-animate,.whatsapp-float,.whatsapp-float::before{animation:none}
}

/* Headings */
h1,h2,h3{margin:0 0 10px}
h2{font-size:28px}
h3{font-size:20px}

/* Skip to content */
.skip-link{position:absolute;left:-9999px;top:auto;width:1px;height:1px;overflow:hidden}
.skip-link:focus{left:16px;top:8px;width:auto;height:auto;padding:.5rem .75rem;background:#1c7bdc;color:#fff;border-radius:8px;z-index:10000}

/* Focus visible */
:focus-visible{outline:3px solid rgba(70,165,255,.6);outline-offset:2px}
.btn:focus-visible{box-shadow:0 0 0 3px rgba(70,165,255,.25)}