:root{
  --primary-navy:#0f172a; --secondary-navy:#1e293b;
  --accent-blue:#3b82f6; --accent-light:#60a5fa; --accent-dark:#1d4ed8;
  --text-primary:#f8fafc; --text-secondary:#cbd5e1; --text-muted:#94a3b8;
  --border-color:#334155; --card-bg:#1e293b;
  --gradient-primary:linear-gradient(135deg,#0f172a 0%,#1e293b 100%);
  --radius:16px; --transition:all .25s cubic-bezier(.4,0,.2,1);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:'Inter',system-ui,sans-serif;background:var(--primary-navy);color:var(--text-primary);line-height:1.7;overflow-x:hidden}

/* Background sutil */
.bg-animation{position:fixed;inset:0;z-index:-1;background:
  radial-gradient(1200px 600px at 10% 90%, rgba(59,130,246,.12), transparent 60%),
  radial-gradient(900px 500px at 90% 10%, rgba(96,165,250,.08), transparent 60%)}

/* Containers / Section */
.container{max-width:1400px;margin:0 auto;padding:0 2rem}
.section{padding:96px 0}

/* Navbar */
.navbar{
  position:fixed;top:0;width:100%;
  background:rgba(15,23,42,.95); backdrop-filter:blur(16px);
  border-bottom:1px solid rgba(51,65,85,.35);
  z-index:1000; transition:var(--transition);
  animation:navIn .45s ease-out both;
}
@keyframes navIn{from{transform:translateY(-10px);opacity:.0}to{transform:none;opacity:1}}
.navbar.scrolled{box-shadow:0 12px 30px -12px rgba(0,0,0,.5)}
.nav-container{max-width:1400px;margin:0 auto;padding:1rem 2rem;display:flex;justify-content:space-between;align-items:center}
.logo{font-weight:800;font-size:1.5rem;color:#fff;text-decoration:none}
.nav-links{display:flex;gap:2rem;align-items:center;list-style:none}
.nav-links a{
  position:relative;display:inline-block;color:var(--text-secondary);text-decoration:none;
  font-weight:700;padding:.55rem 1rem;border-radius:12px;
  transition:color .2s ease, transform .2s ease, background .2s ease;
}
.nav-links a::after{
  content:""; position:absolute; left:12px; right:12px; bottom:6px; height:2px;
  background:var(--accent-blue); transform:scaleX(0); transform-origin:left; transition:transform .25s ease;
  opacity:.85; border-radius:2px;
}
.nav-links a:hover{color:#fff; transform:translateY(-1px)}
.nav-links a:hover::after{transform:scaleX(1)}
.nav-links a.active{color:#fff; background:rgba(59,130,246,.14); box-shadow:0 0 0 1px rgba(59,130,246,.35) inset}
.nav-links a.active::after{transform:scaleX(1)}
.hamburger{display:none;background:none;border:none;cursor:pointer;flex-direction:column;gap:4px;padding:.5rem}
.hamburger span{display:block;width:25px;height:3px;background:#fff;border-radius:2px;transition:var(--transition)}
.hamburger.active span:nth-child(1){transform:rotate(45deg) translate(5px,6px)}
.hamburger.active span:nth-child(2){opacity:0}
.hamburger.active span:nth-child(3){transform:rotate(-45deg) translate(5px,-6px)}
.lang-selector{
  background:var(--card-bg); color:var(--accent-blue); border:2px solid var(--accent-blue);
  border-radius:10px; padding:.5rem .9rem; font-weight:700; cursor:pointer; min-width:84px; transition:var(--transition)
}
.lang-selector:hover{box-shadow:0 0 0 4px rgba(59,130,246,.12)}
.lang-selector:focus{outline:none;box-shadow:0 0 0 3px rgba(59,130,246,.22)}

/* Hero */
.hero{min-height:100vh;display:flex;align-items:center;justify-content:center;padding-top:80px}
.hero-container{width:100%;max-width:1400px;margin:0 auto;padding:0 2rem}
.hero-content{display:grid;grid-template-columns:1fr 1fr;gap:4rem;align-items:center;min-height:70vh}
.hero-image-wrapper{display:flex;justify-content:center}
.hero-img{width:300px;height:300px;border-radius:50%;object-fit:cover;border:4px solid var(--accent-blue);transition:var(--transition)}
.hero-img:hover{transform:translateY(-3px)}
.hero-text{text-align:left}
.hero-greeting{display:flex;align-items:center;gap:.5rem;font-size:1.1rem;color:var(--text-secondary);margin-bottom:.8rem}
.wave{font-size:1.5rem;animation:wave 2s ease-in-out infinite}
@keyframes wave{0%,100%{transform:rotate(0)}20%{transform:rotate(12deg)}40%{transform:rotate(-10deg)}60%{transform:rotate(10deg)}80%{transform:rotate(-6deg)}}
.hero-name{
  font-size:3.8rem;font-weight:800;margin-bottom:1rem;
  background:linear-gradient(135deg,#60a5fa 0%,#2563eb 100%);
  background-clip:text; -webkit-background-clip:text;
  color:transparent; -webkit-text-fill-color:transparent;
}
.typewriter{font-family:'JetBrains Mono',monospace}
.cursor{animation:blink 1s infinite;color:var(--accent-blue)}
@keyframes blink{0%,50%{opacity:1}51%,100%{opacity:0}}
.hero-role{font-size:1.35rem;color:var(--accent-light);font-weight:700;margin-bottom:1.3rem}
.hero-description{font-size:1.12rem;color:var(--text-secondary);line-height:1.85;margin-bottom:2rem}
.hero-buttons{display:flex;gap:1rem;flex-wrap:wrap;margin-bottom:2.1rem}
.btn-primary{
  background:linear-gradient(135deg,#3b82f6,#1d4ed8);color:#fff;padding:1rem 1.6rem;border:none;
  border-radius:14px;font-weight:700;text-decoration:none;display:inline-flex;align-items:center;gap:.6rem;transition:var(--transition)
}
.btn-primary:hover{transform:translateY(-3px)}
.btn-secondary{
  background:transparent;color:var(--accent-blue);padding:1rem 1.6rem;border:2px solid var(--accent-blue);
  border-radius:14px;font-weight:700;text-decoration:none;display:inline-flex;align-items:center;gap:.6rem;transition:var(--transition)
}
.btn-secondary:hover{background:var(--accent-blue);color:#fff;transform:translateY(-3px)}
.hero-social{display:flex;gap:.8rem;flex-wrap:wrap}
.social-link{width:50px;height:50px;background:var(--card-bg);border:1px solid var(--border-color);border-radius:12px;display:flex;align-items:center;justify-content:center;color:var(--text-secondary);font-size:1.2rem;text-decoration:none;transition:var(--transition)}
.social-link:hover{background:var(--accent-blue);color:#fff;transform:translateY(-3px)}
/* Flecha */
.scroll-indicator{position:absolute;left:50%;transform:translateX(-50%);bottom:.2rem}
.scroll-arrow{width:3px;height:44px;background:var(--accent-blue);position:relative;animation:bounce 2s infinite}
.scroll-arrow::after{content:'';position:absolute;bottom:-10px;left:-6px;border-left:7px solid transparent;border-right:7px solid transparent;border-top:10px solid var(--accent-blue)}
@keyframes bounce{0%,20%,50%,80%,100%{transform:translateY(0)}40%{transform:translateY(-10px)}60%{transform:translateY(-5px)}}

/* Titulares sección */
.section-header{text-align:center;margin-bottom:3.4rem}
.section-title{
  font-size:2.6rem;font-weight:800;margin-bottom:.8rem;
  background:linear-gradient(135deg,#60a5fa,#2563eb);background-clip:text;-webkit-background-clip:text;color:transparent;-webkit-text-fill-color:transparent
}
.section-subtitle{font-size:1.12rem;color:var(--text-muted)}

/* About */
.about-content{display:grid;grid-template-columns:2fr 1fr;gap:2rem;align-items:start}
.about-card{background:rgba(30,41,59,.8);padding:2rem;border-radius:var(--radius);color:var(--text-secondary);line-height:1.9;border:1px solid var(--border-color);font-size:1.05rem}
.about-stats{display:flex;flex-direction:column;gap:1.1rem}
.stat-item{background:rgba(30,41,59,.8);padding:1.6rem 2rem;border-radius:var(--radius);text-align:center;border:1px solid var(--border-color);transition:var(--transition)}
.stat-number{font-size:2rem;font-weight:800;color:#93c5fd;margin-bottom:.3rem}
.stat-label{color:var(--text-secondary);font-weight:600}

/* Caja base */
.outline-box{position:relative;border:1px solid rgba(148,163,184,.35);border-radius:var(--radius);background:rgba(30,41,59,.75);transition:var(--transition)}
.outline-box::after{content:'';position:absolute;inset:0;border-radius:inherit;background:rgba(59,130,246,.06);opacity:0;transition:var(--transition);pointer-events:none}
.outline-box:hover{border-color:rgba(59,130,246,.65)}
.outline-box:hover::after{opacity:1}
.lift{transition:transform .25s ease, box-shadow .25s ease}
.lift:hover{transform:translateY(-10px)}

/* Servicios */
.services-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:2rem}
.service-card{padding:2rem}
.service-icon{width:58px;height:58px;background:linear-gradient(135deg,#3b82f6,#1d4ed8);border-radius:12px;display:flex;align-items:center;justify-content:center;font-size:1.5rem;color:#fff;margin-bottom:1rem}
.service-card h3{font-size:1.28rem;font-weight:800;margin-bottom:.6rem}
.service-card p{color:var(--text-secondary);margin-bottom:1.1rem;font-size:1.05rem}
.service-features{display:flex;flex-wrap:wrap;gap:.5rem}
.service-features span{background:rgba(59,130,246,.14);color:#a7c5ff;padding:.34rem .8rem;border-radius:20px;font-size:.9rem;font-weight:700}

/* Proyectos */
.project-category{margin-bottom:2.6rem}
.category-title{font-size:1.5rem;font-weight:800;margin-bottom:1rem;display:flex;gap:.6rem;align-items:center}
.category-title i{color:var(--accent-blue)}
.projects-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(320px,1fr));gap:2rem}
.project-card{transition:var(--transition)}
.project-content{padding:1.4rem}
.project-content h4{font-size:1.22rem;margin-bottom:.6rem}
.project-content p{color:var(--text-secondary);margin-bottom:.9rem;font-size:1.06rem}
.project-tech{display:flex;flex-wrap:wrap;gap:.5rem}
.project-tech span{background:rgba(59,130,246,.14);color:#a7c5ff;padding:.34rem .8rem;border-radius:20px;font-size:.88rem;font-weight:700}

/* Imagen estable */
.project-image, .bot-image{
  position:relative; aspect-ratio:16/9; overflow:hidden;
  border-top-left-radius:var(--radius); border-top-right-radius:var(--radius);
  border-bottom:1px solid var(--border-color); background:rgba(15,23,42,.6)
}
.project-image img, .bot-image img{width:100%;height:100%;display:block;object-fit:cover;object-position:center;transition:transform .3s ease}
.img-top{object-position:center 20%}
.project-card:hover .project-image img,
.bot-card:hover .bot-image img{transform:scale(1.04)}

/* Botones flotantes */
.card-actions{
  position:absolute; top:.65rem; right:.65rem; display:flex; gap:.5rem;
  opacity:0; transform:translateY(-6px); transition:opacity .22s ease, transform .22s ease; pointer-events:none
}
.action-btn{
  width:38px;height:38px;border-radius:12px;background:rgba(15,23,42,.85);backdrop-filter:blur(10px);
  border:1px solid rgba(148,163,184,.45);display:flex;align-items:center;justify-content:center;
  color:#a7c5ff;text-decoration:none;font-size:18px;pointer-events:auto;
  transition:transform .2s ease, background .2s ease, border-color .2s ease, color .2s ease
}
.action-btn:hover{transform:translateY(-2px);background:rgba(59,130,246,.22);border-color:var(--accent-light);color:#fff}
.project-card:hover .card-actions, .bot-card:hover .card-actions{opacity:1;transform:none}

/* Contacto */
.contact-content{display:grid;grid-template-columns:1fr 1fr;gap:2rem;align-items:start}
.contact-item{display:flex;gap:1rem;padding:1.2rem 1.4rem}
.contact-icon{width:50px;height:50px;background:linear-gradient(135deg,#3b82f6,#1d4ed8);border-radius:12px;display:flex;align-items:center;justify-content:center;color:#fff;font-size:1.2rem}
.contact-details strong{display:block;color:#fff;margin-bottom:.15rem;font-size:1.05rem}
.contact-details span{color:var(--text-secondary);font-size:1.02rem}
.contact-form-wrapper{padding:2rem}
.contact-form h3{font-size:1.35rem;margin-bottom:1rem}
.form-group{margin-bottom:1rem}
.form-group input,.form-group textarea{width:100%;padding:1rem 1.1rem;background:var(--secondary-navy);border:1px solid var(--border-color);border-radius:12px;color:#fff;outline:none;transition:var(--transition);font-size:1.02rem}
.form-group input:focus,.form-group textarea:focus{border-color:var(--accent-blue);box-shadow:0 0 0 3px rgba(59,130,246,.12)}
.form-group textarea{min-height:120px;resize:vertical}

/* Footer */
.footer{background:var(--gradient-primary);border-top:1px solid var(--border-color);padding:4rem 0 2rem}
.footer-content{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:3rem;margin-bottom:2rem}
.footer-section h3{margin-bottom:1rem}
.footer-section p{color:var(--text-secondary);margin-bottom:1rem}
.footer-section ul{list-style:none}
.footer-section li{margin-bottom:.6rem}
.footer-section a{text-decoration:none;color:var(--text-secondary)}
.footer-section a:hover{color:#fff}
.footer-social{display:flex;gap:.8rem}
.footer-social a{width:40px;height:40px;background:var(--card-bg);border:1px solid var(--border-color);border-radius:8px;display:flex;align-items:center;justify-content:center;color:var(--text-secondary)}
.footer-social a:hover{background:var(--accent-blue);color:#fff;border-color:var(--accent-blue)}
.footer-bottom{padding-top:1.2rem;border-top:1px solid var(--border-color);text-align:center;color:var(--text-muted)}

/* Back to top */
.back-to-top{position:fixed;bottom:2rem;right:2rem;width:50px;height:50px;background:linear-gradient(135deg,#3b82f6,#1d4ed8);border:none;border-radius:50%;color:#fff;font-size:1.2rem;cursor:pointer;opacity:0;visibility:hidden;transition:var(--transition);z-index:1000}
.back-to-top.show{opacity:1;visibility:visible}
.back-to-top:hover{transform:translateY(-3px)}

/* Reveal (solo si hay JS) */
.reveal{opacity:1;transform:none}
html.js .reveal{opacity:0;transform:translateY(28px);transition:.7s ease}
html.js .reveal.active{opacity:1;transform:translateY(0)}

/* Responsive */
@media (max-width:1024px){
  .container{padding:0 1.5rem}
  .hero-content{grid-template-columns:1fr;text-align:center;gap:2.6rem}
  .hero-text{text-align:center}
  .about-content{grid-template-columns:1fr}
  .contact-content{grid-template-columns:1fr}
  .hero-img{width:240px;height:240px}
  .hero-name{font-size:3.1rem}
}
@media (max-width:768px){
  .hamburger{display:flex;z-index:1001}
  .nav-links{
    position:fixed;top:70px;right:-100%;width:100%;max-width:300px;height:calc(100vh - 70px);
    background:var(--card-bg);flex-direction:column;padding:1.6rem 1rem;border-left:1px solid var(--border-color);
    transition:right .3s ease;box-shadow:0 20px 40px rgba(0,0,0,.35)
  }
  .nav-links.open{right:0}
  .nav-links a{display:block;width:100%;text-align:center}
  .lang-selector{width:100%;margin-top:.4rem}
}
@media (max-width:480px){
  .container{padding:0 1rem}
  .section{padding:64px 0}
  .hero-name{font-size:2.35rem}
  .hero-img{width:190px;height:190px}
}