:root {
    --background: #111119;
    --background-elevated: #18181f;
    --foreground: #f5f5f7;
    --muted: #a3a3b5;
    --accent-blue: #3b82f6;
    --accent-violet: #8b5cf6;
    --border-glass: rgba(255, 255, 255, 0.1);
  }

  * { margin: 0; padding: 0; box-sizing: border-box; }
  html { scroll-behavior: smooth; }

  body {
    background: var(--background);
    color: var(--foreground);
    font-family: 'Inter', Arial, Helvetica, sans-serif;
    position: relative;
  }

  .font-display { font-family: 'Space Grotesk', sans-serif; }

  body::before {
    content: "";
    position: fixed;
    inset: 0;
    z-index: 2;
    pointer-events: none;
    opacity: 0.035;
    mix-blend-mode: overlay;
    background-image: url("data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHdpZHRoPSIyMDAiIGhlaWdodD0iMjAwIj48ZmlsdGVyIGlkPSJuIj48ZmVUdXJidWxlbmNlIHR5cGU9ImZyYWN0YWxOb2lzZSIgYmFzZUZyZXF1ZW5jeT0iMC44NSIgbnVtT2N0YXZlcz0iMyIgc3RpdGNoVGlsZXM9InN0aXRjaCIvPjwvZmlsdGVyPjxyZWN0IHdpZHRoPSIxMDAlIiBoZWlnaHQ9IjEwMCUiIGZpbHRlcj0idXJsKCNuKSIvPjwvc3ZnPg==");
    background-repeat: repeat;
  }

  /* Orbes de gradiente flotantes — capa ambiental fija detrás de todo el contenido */
  .ambient-orbs {
    position: fixed;
    inset: 0;
    z-index: 0;
    pointer-events: none;
    overflow: hidden;
  }

  .ambient-orbs span {
    position: absolute;
    border-radius: 50%;
    filter: blur(90px);
    will-change: transform;
  }

  .orb-1 { width: 420px; height: 420px; top: 5%;  left: 8%;  background: rgba(59,130,246,0.14);  animation: orbFloat1 26s ease-in-out infinite; }
  .orb-2 { width: 360px; height: 360px; top: 45%; left: 78%; background: rgba(139,92,246,0.13);  animation: orbFloat2 32s ease-in-out infinite; }
  .orb-3 { width: 300px; height: 300px; top: 78%; left: 15%; background: rgba(76,141,255,0.10);  animation: orbFloat3 28s ease-in-out infinite; }
  .orb-4 { width: 260px; height: 260px; top: 20%; left: 55%; background: rgba(139,92,246,0.09);  animation: orbFloat1 34s ease-in-out infinite reverse; }

  @keyframes orbFloat1 { 0%,100% { transform: translate(0,0); } 50% { transform: translate(70px, 50px); } }
  @keyframes orbFloat2 { 0%,100% { transform: translate(0,0); } 50% { transform: translate(-60px, -70px); } }
  @keyframes orbFloat3 { 0%,100% { transform: translate(0,0); } 50% { transform: translate(50px, -40px); } }

  @media (prefers-reduced-motion: reduce) {
    .ambient-orbs span { animation: none; }
  }

  body > * { position: relative; z-index: 1; }

  .text-gradient {
    background: linear-gradient(135deg, var(--accent-blue), var(--accent-violet));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
  }

  .bg-gradient-accent { background: linear-gradient(135deg, var(--accent-blue), var(--accent-violet)); }

  .glass-card {
    background: rgba(255, 255, 255, 0.045);
    backdrop-filter: blur(20px) saturate(150%);
    -webkit-backdrop-filter: blur(20px) saturate(150%);
    border: 1px solid var(--border-glass);
  }

  .header-glass {
    background: rgba(255, 255, 255, 0.055);
    backdrop-filter: blur(20px) saturate(160%);
    -webkit-backdrop-filter: blur(20px) saturate(160%);
    border: 1px solid rgba(255, 255, 255, 0.12);
    box-shadow: 0 8px 32px -12px rgba(0, 0, 0, 0.5);
  }

  .glow-border { position: relative; }
  .glow-border::before {
    content: "";
    position: absolute;
    inset: -1px;
    border-radius: inherit;
    padding: 1px;
    background: linear-gradient(135deg, var(--accent-blue), var(--accent-violet));
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    opacity: 0.6;
    pointer-events: none;
  }

  ::selection { background: var(--accent-violet); color: white; }
  a { text-decoration: none; color: inherit; }
  ol, ul { list-style: none; }

  .container { max-width: 72rem; margin: 0 auto; padding: 0 1.5rem; }
  .container-sm { max-width: 56rem; margin: 0 auto; padding: 0 1.5rem; }
  .container-md { max-width: 64rem; margin: 0 auto; padding: 0 1.5rem; }
  .container-lg { max-width: 80rem; margin: 0 auto; padding: 0 1.5rem; }

  section { position: relative; padding: 7rem 1.5rem; }
  @media (min-width: 640px) { section { padding: 9rem 1.5rem; } }

  .section-head { max-width: 42rem; margin: 0 auto; text-align: center; }
  .section-head h2 { font-weight: 600; letter-spacing: -0.02em; font-size: 1.875rem; }
  @media (min-width: 640px) { .section-head h2 { font-size: 2.25rem; } }
  .section-head p { margin-top: 1rem; color: var(--muted); }

  .reveal { opacity: 0; transform: translateY(24px); transition: opacity 0.6s cubic-bezier(0.21,0.47,0.32,0.98), transform 0.6s cubic-bezier(0.21,0.47,0.32,0.98); }
  .reveal.in { opacity: 1; transform: translateY(0); }

  /* ---------- HEADER ---------- */
  header.site-header {
    position: fixed;
    inset-inline: 0;
    top: 0;
    z-index: 50;
    padding: 1rem 1.5rem;
  }

  .header-inner {
    max-width: 72rem;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-radius: 999px;
    padding: 0.6rem 1.25rem;
  }

  .brand { font-family: 'Space Grotesk', sans-serif; font-size: 1rem; font-weight: 600; }

  .main-nav { display: none; align-items: center; gap: 2rem; }
  @media (min-width: 640px) { .main-nav { display: flex; } }
  .main-nav a { font-size: 0.875rem; color: var(--muted); transition: color 0.2s ease; }
  .main-nav a:hover { color: var(--foreground); }

  /* ---------- BOTONES ---------- */
  .btn {
    position: relative;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    border-radius: 999px;
    padding: 0.9rem 1.75rem;
    font-size: 0.875rem;
    font-weight: 600;
    letter-spacing: -0.01em;
    transition: box-shadow 0.2s ease, border-color 0.2s ease, background 0.2s ease;
    will-change: transform;
    border: none;
    cursor: pointer;
  }
  .btn-primary { background: linear-gradient(135deg, var(--accent-blue), var(--accent-violet)); color: white; box-shadow: 0 0 30px -5px rgba(139,92,246,0.6); }
  .btn-primary:hover { box-shadow: 0 0 45px -5px rgba(139,92,246,0.8); }
  .btn-secondary { border: 1px solid rgba(255,255,255,0.15); color: var(--foreground); background: transparent; }
  .btn-secondary:hover { border-color: rgba(255,255,255,0.3); background: rgba(255,255,255,0.05); }
  .btn-small { padding: 0.5rem 1.25rem; font-size: 0.75rem; }

  /* ---------- HERO ---------- */
  .hero { min-height: 100vh; display: flex; align-items: center; justify-content: center; overflow: hidden; padding: 6rem 1.5rem 0; }
  .hero-bg { position: absolute; inset: 0; pointer-events: none; }
  #network { position: absolute; inset: 0; width: 100%; height: 100%; }
  .hero-fade { position: absolute; inset: 0; background: radial-gradient(ellipse at center, transparent 0%, var(--background) 75%); }
  .hero-glow { position: absolute; top: -160px; left: 50%; transform: translateX(-50%); width: 700px; height: 500px; border-radius: 50%; background: rgba(59,130,246,0.1); filter: blur(120px); }
  .hero-inner { position: relative; z-index: 10; max-width: 56rem; margin: 0 auto; display: flex; flex-direction: column; align-items: center; text-align: center; }

  .eyebrow { margin-bottom: 1.5rem; display: inline-flex; align-items: center; gap: 0.5rem; border-radius: 999px; border: 1px solid rgba(255,255,255,0.1); background: rgba(255,255,255,0.05); padding: 0.375rem 1rem; font-size: 0.75rem; font-weight: 500; letter-spacing: 0.02em; color: var(--muted); opacity: 0; }
  .eyebrow-dot { width: 6px; height: 6px; border-radius: 50%; }
  h1.hero-title { font-weight: 600; line-height: 1.1; letter-spacing: -0.02em; font-size: 2.25rem; opacity: 0; }
  @media (min-width: 640px) { h1.hero-title { font-size: 3.75rem; } }
  .hero-sub { margin-top: 1.5rem; max-width: 42rem; font-size: 1.125rem; line-height: 1.7; color: var(--muted); opacity: 0; }
  @media (min-width: 640px) { .hero-sub { font-size: 1.25rem; } }
  .hero-ctas { margin-top: 2.5rem; display: flex; flex-direction: column; align-items: center; gap: 1rem; opacity: 0; }
  @media (min-width: 640px) { .hero-ctas { flex-direction: row; } }

  /* ---------- TRUST BAR ---------- */
  .trust-bar { border-top: 1px solid rgba(255,255,255,0.05); border-bottom: 1px solid rgba(255,255,255,0.05); background: rgba(255,255,255,0.02); padding: 3.5rem 1.5rem; }
  .trust-grid { max-width: 64rem; margin: 0 auto; display: grid; grid-template-columns: repeat(2, 1fr); gap: 2rem; text-align: center; }
  @media (min-width: 640px) { .trust-grid { grid-template-columns: repeat(4, 1fr); } }
  .trust-value { font-size: 1.5rem; font-weight: 600; }
  @media (min-width: 640px) { .trust-value { font-size: 1.875rem; } }
  .trust-label { margin-top: 0.5rem; font-size: 0.75rem; line-height: 1.4; color: var(--muted); }
  @media (min-width: 640px) { .trust-label { font-size: 0.875rem; } }

  /* ---------- GRIDS DE TARJETAS (Servicios / WhySynex) ---------- */
  .card-grid { margin-top: 4rem; display: grid; gap: 1.5rem; grid-template-columns: 1fr; }
  @media (min-width: 640px) { .card-grid.two { grid-template-columns: repeat(2, 1fr); } }
  @media (min-width: 640px) { .card-grid.three { grid-template-columns: repeat(2, 1fr); } }
  @media (min-width: 1024px) { .card-grid.three { grid-template-columns: repeat(3, 1fr); } }

  .info-card { border-radius: 1rem; padding: 2rem; height: 100%; transition: background 0.2s ease; }
  .info-card:hover { background: rgba(255,255,255,0.05); }
  .info-card .num { font-size: 0.875rem; font-weight: 600; }
  .info-card h3 { margin-top: 0.75rem; font-size: 1.125rem; font-weight: 600; }
  .info-card p { margin-top: 0.5rem; font-size: 0.875rem; line-height: 1.6; color: var(--muted); }

  /* ---------- BRAND STORY ---------- */
  .brand-eyebrow { font-size: 0.75rem; font-weight: 500; text-transform: uppercase; letter-spacing: 0.2em; color: var(--muted); }
  .brand-name { margin-top: 1rem; font-size: 2.25rem; font-weight: 600; letter-spacing: -0.02em; }
  @media (min-width: 640px) { .brand-name { font-size: 3rem; } }
  .brand-tagline { margin-top: 1.5rem; font-size: 1.25rem; line-height: 1.4; font-family: 'Space Grotesk', sans-serif; }
  @media (min-width: 640px) { .brand-tagline { font-size: 1.5rem; } }

  .roots-grid { margin-top: 4rem; display: grid; gap: 1.5rem; grid-template-columns: 1fr; }
  @media (min-width: 640px) { .roots-grid { grid-template-columns: repeat(2, 1fr); } }

  .root-card { position: relative; overflow: hidden; border-radius: 1rem; padding: 2rem; height: 100%; }
  .root-card .ghost-word { position: absolute; right: -1rem; top: -1.5rem; font-family: 'Space Grotesk', sans-serif; font-size: 7rem; font-weight: 700; line-height: 1; color: rgba(255,255,255,0.04); user-select: none; pointer-events: none; }
  .root-card .word { position: relative; font-family: 'Space Grotesk', sans-serif; font-size: 1.5rem; font-weight: 700; }
  .root-card .origin { position: relative; margin-top: 0.25rem; font-size: 0.75rem; font-weight: 500; text-transform: uppercase; letter-spacing: 0.05em; color: var(--muted); }
  .root-card .meaning { position: relative; margin-top: 1rem; font-size: 0.875rem; line-height: 1.6; color: rgba(245,245,247,0.9); }

  .brand-closing { max-width: 42rem; margin: 3rem auto 0; text-align: center; font-size: 0.875rem; line-height: 1.6; color: var(--muted); }

  /* ---------- PLANES ---------- */
  .plans-grid { margin-top: 4rem; display: grid; gap: 1.5rem; grid-template-columns: 1fr; }
  @media (min-width: 768px) { .plans-grid { grid-template-columns: repeat(3, 1fr); } }
  .plan-card { position: relative; display: flex; flex-direction: column; height: 100%; border-radius: 1rem; padding: 2rem; transition: transform 0.3s cubic-bezier(0.16,1,0.3,1); }
  .plan-card:hover { transform: translateY(-8px); }
  .plan-card.highlighted { box-shadow: 0 0 60px -15px rgba(139,92,246,0.5); }
  .plan-badge { position: absolute; top: -0.75rem; left: 2rem; border-radius: 999px; padding: 0.25rem 0.75rem; font-size: 0.75rem; font-weight: 600; color: white; }
  .plan-card h3 { font-size: 1.25rem; font-weight: 600; }
  .plan-card .plan-desc { margin-top: 0.5rem; font-size: 0.875rem; line-height: 1.6; color: var(--muted); }
  .plan-price { margin-top: 1.5rem; }
  .plan-price span { display: inline-flex; align-items: center; border-radius: 999px; border: 1px solid rgba(255,255,255,0.1); padding: 0.25rem 0.75rem; font-size: 0.875rem; font-weight: 600; }
  .plan-features { margin-top: 1.5rem; display: flex; flex: 1; flex-direction: column; gap: 0.75rem; }
  .plan-features li { display: flex; align-items: flex-start; gap: 0.5rem; font-size: 0.875rem; }
  .plan-features .bullet { margin-top: 0.35rem; width: 6px; height: 6px; flex-shrink: 0; border-radius: 50%; }
  .plan-features .feat-text { color: rgba(245,245,247,0.9); }
  .plan-card .btn { margin-top: 2rem; width: 100%; }

  /* ---------- PROCESO ---------- */
  .timeline { position: relative; margin-top: 5rem; }
  .timeline-line { position: absolute; left: 19px; top: 0.5rem; width: 1px; height: calc(100% - 2rem); background: linear-gradient(to bottom, var(--accent-blue), var(--accent-violet), transparent); display: none; }
  @media (min-width: 640px) { .timeline-line { display: block; } }
  .timeline ol { display: flex; flex-direction: column; gap: 3rem; }
  .timeline li { position: relative; display: flex; gap: 1.5rem; }
  .step-num { position: relative; z-index: 10; display: flex; height: 2.5rem; width: 2.5rem; flex-shrink: 0; align-items: center; justify-content: center; border-radius: 50%; font-family: 'Space Grotesk', sans-serif; font-size: 0.875rem; font-weight: 600; color: white; }
  .step-body { padding-top: 0.25rem; }
  .step-body h3 { font-size: 1.125rem; font-weight: 600; }
  .step-body p { margin-top: 0.4rem; font-size: 0.875rem; line-height: 1.6; color: var(--muted); }

  /* ---------- PROYECTOS ---------- */
  .project-card { display: flex; flex-direction: column; height: 100%; overflow: hidden; border-radius: 1rem; }
  .project-thumb { aspect-ratio: 4/3; display: flex; align-items: center; justify-content: center; background: linear-gradient(135deg, rgba(59,130,246,0.1), rgba(255,255,255,0.02), rgba(139,92,246,0.1)); }
  .project-thumb span { font-family: 'Space Grotesk', sans-serif; font-size: 0.875rem; font-weight: 500; color: var(--muted); }
  .project-body { flex: 1; padding: 1.5rem; }
  .project-category { font-size: 0.75rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.05em; }
  .project-body h3 { margin-top: 0.5rem; font-size: 1.125rem; font-weight: 600; }
  .project-body p { margin-top: 0.5rem; font-size: 0.875rem; line-height: 1.6; color: var(--muted); }

  /* ---------- CTA FINAL + FORMULARIO ---------- */
  .final-cta-grid { max-width: 64rem; margin: 0 auto; display: grid; gap: 3rem; grid-template-columns: 1fr; }
  @media (min-width: 768px) { .final-cta-grid { grid-template-columns: repeat(2, 1fr); gap: 4rem; } }
  .final-cta-grid h2 { font-size: 1.875rem; font-weight: 600; letter-spacing: -0.02em; }
  @media (min-width: 640px) { .final-cta-grid h2 { font-size: 2.25rem; } }
  .final-cta-grid > div:first-child p { margin-top: 1rem; color: var(--muted); }
  .final-cta-grid .btn { margin-top: 2rem; }

  .contact-form { border-radius: 1rem; padding: 2rem; display: flex; flex-direction: column; gap: 1rem; }
  .field label { font-size: 0.875rem; font-weight: 500; color: var(--muted); }
  .field input, .field textarea {
    margin-top: 0.4rem; width: 100%; border-radius: 0.5rem; border: 1px solid rgba(255,255,255,0.1);
    background: rgba(255,255,255,0.05); padding: 0.65rem 1rem; font-size: 0.875rem; color: var(--foreground);
    outline: none; transition: border-color 0.2s ease; font-family: inherit;
  }
  .field input:focus, .field textarea:focus { border-color: var(--accent-violet); }
  .field textarea { resize: none; }
  .contact-form .submit-btn { width: 100%; border-radius: 999px; background: linear-gradient(135deg, var(--accent-blue), var(--accent-violet)); padding: 0.9rem; font-size: 0.875rem; font-weight: 600; color: white; border: none; cursor: pointer; transition: opacity 0.2s ease; }
  .contact-form .submit-btn:hover { opacity: 0.9; }
  .form-success { text-align: center; }
  .form-success p:first-child { font-family: 'Space Grotesk', sans-serif; font-size: 1.125rem; font-weight: 600; }
  .form-success p:last-child { margin-top: 0.5rem; font-size: 0.875rem; color: var(--muted); }

  /* ---------- FOOTER ---------- */
  footer.site-footer { border-top: 1px solid rgba(255,255,255,0.05); padding: 3rem 1.5rem; }
  .footer-inner { max-width: 72rem; margin: 0 auto; display: flex; flex-direction: column; align-items: center; gap: 1.5rem; text-align: center; }
  @media (min-width: 640px) { .footer-inner { flex-direction: row; align-items: flex-start; justify-content: space-between; text-align: left; } }
  .footer-brand p:first-child { font-family: 'Space Grotesk', sans-serif; font-size: 1.125rem; font-weight: 600; }
  .footer-brand p:last-child { margin-top: 0.5rem; max-width: 20rem; font-size: 0.875rem; color: var(--muted); }
  .footer-contact { font-size: 0.875rem; color: var(--muted); }
  .footer-social { display: flex; gap: 1rem; font-size: 0.875rem; color: var(--muted); }
  .footer-social a:hover { color: var(--foreground); }
  .copyright { margin-top: 2.5rem; text-align: center; font-size: 0.75rem; color: rgba(163,163,181,0.7); }