/* Reset + base */
:root{
    --bg:#0f1724;            /* oscuro hero */
    --card:#ffffff;          /* cards blanco */
    --muted:#6b7280;
    --accent:#0ea5ff;        /* azul tipo logo */
    --accent-2:#28a9ff;
    --glass: rgba(255,255,255,0.06);
    --radius:14px;
    --maxw:1200px;
    --text:#e6eef8;
  }
  *{box-sizing:border-box;margin:0;padding:0}
  html,body{height:100%}
  body{
    font-family: Inter, system-ui, -apple-system, "Helvetica Neue", Arial;
    color:var(--text);
    background:linear-gradient(180deg,#071025 0%, #051726 100%);
    -webkit-font-smoothing:antialiased;
    -moz-osx-font-smoothing:grayscale;
    line-height:1.5;
  }
  
  /* Layout */
  .container{max-width:var(--maxw);margin:0 auto;padding:28px}
  .nav{backdrop-filter:saturate(120%) blur(6px);position:sticky;top:0;z-index:40;background:linear-gradient(180deg, rgba(4,10,18,0.6), rgba(4,10,18,0.35))}
  .nav-inner{display:flex;align-items:center;justify-content:space-between;padding:10px 0}
  .brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--text)}
  .brand .logo{width:48px;height:48px;object-fit:contain}
  .brand-text{font-weight:700;letter-spacing:1px}
  .nav-links{display:flex;gap:18px;align-items:center}
  .nav-links a{color:var(--text);text-decoration:none;padding:8px 10px;border-radius:8px}
  .nav-links a:hover{background:rgba(255,255,255,0.03)}
  .nav-toggle{display:none;background:none;border:0;cursor:pointer}
  .nav-toggle span{display:block;width:22px;height:2px;background:var(--text);margin:4px 0;border-radius:2px}
  
  /* HERO */
  .hero{padding:48px 0 72px}
  .hero-dark{background:linear-gradient(180deg, rgba(1,7,19,0.45), transparent)}
  .hero-grid{display:grid;grid-template-columns:1fr 420px;gap:32px;align-items:center}
  .hero-content h1{font-size:2.2rem;margin-bottom:12px}
  .hero .lead{color:var(--text);opacity:0.9;margin-bottom:18px}
  .hero-cta{display:flex;gap:12px;margin-bottom:16px}
  .btn{display:inline-block;padding:10px 16px;border-radius:10px;text-decoration:none;font-weight:600}
  .btn-primary{background:linear-gradient(90deg,var(--accent),var(--accent-2));color:#021428;box-shadow:0 6px 18px rgba(14,165,255,0.12)}
  .btn-outline{border:1px solid rgba(255,255,255,0.08);color:var(--text);background:transparent;padding:9px 14px}
  .btn-ghost{background:transparent;border:1px solid rgba(255,255,255,0.06);padding:8px 12px;color:var(--text)}
  
  .trust{display:flex;gap:12px;margin-top:16px;color:var(--muted)}
  .card{background: linear-gradient(180deg, rgba(255,255,255,0.02), rgba(255,255,255,0.01)); border-radius:var(--radius); padding:18px; box-shadow: 0 6px 20px rgba(2,6,12,0.6); color:var(--text)}
  .glass{background:var(--glass);border:1px solid rgba(255,255,255,0.04)}
  
  /* GRID */
  .grid{display:grid;gap:18px}
  .grid-3{grid-template-columns:repeat(3,1fr)}
  .grid-2{grid-template-columns:repeat(2,1fr)}
  @media (max-width:980px){
    .hero-grid{grid-template-columns:1fr; padding:10px}
    .grid-3{grid-template-columns:repeat(2,1fr)}
  }
  @media (max-width:640px){
    .nav-links{display:none; position:absolute; top:100%; left:0; right:0; background:linear-gradient(180deg, rgba(4,10,18,0.95), rgba(4,10,18,0.9)); backdrop-filter:blur(10px); flex-direction:column; gap:4px; padding:20px; border-radius:0 0 12px 12px; box-shadow:0 8px 24px rgba(0,0,0,0.4)}
    .nav-links.open{display:flex}
    .nav-toggle{display:block}
    .grid-3,.grid-2{grid-template-columns:1fr}
    .brand-text{display:none}
  }
  
  /* services / projects */
  .section-title{font-size:1.6rem;margin-bottom:6px;color:var(--text)}
  .section-sub{color:var(--muted);margin-bottom:16px}
  .service p, .project p{color:var(--muted)}
  .project-head{display:flex;justify-content:space-between;align-items:center}
  .tag{background:rgba(255,255,255,0.03);padding:6px 8px;border-radius:999px;font-size:0.8rem;color:var(--muted)}
  
  /* CTA oscuro */
  .cta-dark{margin:36px 0;padding:28px;border-radius:14px;background:linear-gradient(90deg, rgba(3,12,25,0.85), rgba(4,9,22,0.95))}
  .cta-inner{display:flex;align-items:center;justify-content:space-between;gap:12px}
  .cta-inner h3{font-size:1.2rem}
  .cta-inner p{color:var(--muted)}
  
  /* footer */
  .footer-info{margin-top:36px;padding:28px;border-radius:12px;background:linear-gradient(180deg, rgba(255,255,255,0.02), rgba(255,255,255,0.01))}
  .site-footer{padding:20px 0;text-align:center;color:var(--muted);margin-top:12px}
  .small .container{padding:20px 28px}
  
  /* helpers */
  .center{text-align:center;margin-top:18px}
  .muted{color:var(--muted)}
  .mini-projects{list-style:none;padding:0;margin:12px 0}
  .mini-projects li{display:flex;justify-content:space-between;padding:6px 0;border-bottom:1px dashed rgba(255,255,255,0.02);color:var(--muted)}
  
  /* contact form */
  .contact-card input, .contact-card textarea, .contact-card select{
    width:100%;padding:10px;border-radius:8px;border:1px solid rgba(255,255,255,0.04);background:transparent;color:var(--text);margin:8px 0;
  }
  .form-actions{display:flex;gap:12px;align-items:center}
  .link-small{color:var(--accent);text-decoration:none;font-weight:600}
  
  /* small anim */
  [data-anim]{opacity:0;transform:translateY(16px);transition:opacity 520ms ease, transform 520ms ease}
  [data-anim].in{opacity:1;transform:none}