:root {
  --bg: #05060f;
  --bg-2: #0a0e24;
  --cyan: #00e5ff;
  --purple: #a855f7;
  --pink: #ff2bd6;
  --text: #e8ecff;
  --muted: #8b93c0;
  --glass: rgba(18, 22, 48, 0.55);
  --border: rgba(120, 140, 255, 0.18);
  --shadow-glow: 0 0 40px rgba(0, 229, 255, 0.25);
  --grad: linear-gradient(120deg, var(--cyan), var(--purple) 55%, var(--pink));
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  font-family: "Space Grotesk", system-ui, sans-serif;
  background: radial-gradient(circle at 20% 0%, #0d1238 0%, var(--bg) 55%);
  color: var(--text);
  overflow-x: hidden;
  line-height: 1.6;
}

/* ---------- Fondo animado ---------- */
#neural-bg {
  position: fixed;
  inset: 0;
  z-index: -2;
  width: 100%;
  height: 100%;
}
.grid-overlay {
  position: fixed;
  inset: 0;
  z-index: -1;
  background-image:
    linear-gradient(rgba(120,140,255,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(120,140,255,0.04) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(circle at 50% 30%, black, transparent 80%);
  pointer-events: none;
}

/* ---------- Tipografía utilitaria ---------- */
.glow-text {
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  text-shadow: 0 0 30px rgba(168, 85, 247, 0.35);
}
.brand-accent { color: var(--cyan); }

/* ---------- NAV ---------- */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px clamp(20px, 5vw, 60px);
  transition: background .3s, padding .3s, backdrop-filter .3s;
}
.nav.scrolled {
  background: rgba(5, 6, 15, 0.7);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
  padding-top: 12px;
  padding-bottom: 12px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--text);
}
.brand-logo { filter: drop-shadow(0 0 8px rgba(0,229,255,.6)); animation: float 6s ease-in-out infinite; }
.brand-name {
  font-family: "Orbitron", sans-serif;
  font-weight: 700;
  font-size: 1.25rem;
  letter-spacing: 1px;
}
.nav-links { display: flex; align-items: center; gap: 28px; }
.nav-links a {
  color: var(--muted);
  text-decoration: none;
  font-weight: 500;
  transition: color .2s;
  position: relative;
}
.nav-links a:not(.nav-cta)::after {
  content: "";
  position: absolute;
  left: 0; bottom: -6px;
  width: 0; height: 2px;
  background: var(--grad);
  transition: width .25s;
}
.nav-links a:not(.nav-cta):hover::after { width: 100%; }
.nav-links a:hover { color: var(--text); }
.nav-cta {
  padding: 8px 18px;
  border-radius: 100px;
  border: 1px solid var(--cyan);
  color: var(--cyan) !important;
  box-shadow: var(--shadow-glow);
}
.nav-cta:hover { background: rgba(0,229,255,.1); }

.nav-burger { display: none; flex-direction: column; gap: 5px; background: none; border: 0; cursor: pointer; }
.nav-burger span { width: 26px; height: 2px; background: var(--text); transition: .3s; }

/* ---------- HERO ---------- */
.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 120px clamp(20px, 5vw, 60px) 80px;
  gap: 26px;
}
.hero-badge {
  font-size: .85rem;
  padding: 8px 18px;
  border-radius: 100px;
  background: var(--glass);
  border: 1px solid var(--border);
  backdrop-filter: blur(8px);
  letter-spacing: 1px;
  color: var(--cyan);
}
.hero-title {
  font-family: "Orbitron", sans-serif;
  font-weight: 900;
  font-size: clamp(2.2rem, 6vw, 4.4rem);
  line-height: 1.1;
  letter-spacing: 1px;
}
.hero-sub { max-width: 640px; color: var(--muted); font-size: clamp(1rem, 2vw, 1.2rem); }
.hero-sub em { color: var(--text); font-style: normal; font-weight: 600; }
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; justify-content: center; }

.btn {
  font-family: inherit;
  font-weight: 600;
  font-size: 1rem;
  padding: 14px 30px;
  border-radius: 100px;
  border: 1px solid transparent;
  cursor: pointer;
  text-decoration: none;
  display: inline-block;
  transition: transform .2s, box-shadow .3s, background .3s;
}
.btn-primary {
  background: var(--grad);
  color: #05060f;
  box-shadow: 0 8px 30px rgba(0, 229, 255, 0.35);
}
.btn-primary:hover { transform: translateY(-3px); box-shadow: 0 12px 44px rgba(168, 85, 247, 0.5); }
.btn-ghost { background: var(--glass); border-color: var(--border); color: var(--text); backdrop-filter: blur(8px); }
.btn-ghost:hover { transform: translateY(-3px); border-color: var(--cyan); }

.hero-stats { display: flex; gap: clamp(24px, 6vw, 64px); margin-top: 14px; flex-wrap: wrap; justify-content: center; }
.hero-stats div { display: flex; flex-direction: column; align-items: center; }
.stat-num {
  font-family: "Orbitron", sans-serif;
  font-size: clamp(1.6rem, 4vw, 2.4rem);
  font-weight: 700;
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero-stats small { color: var(--muted); }

/* ---------- SECTIONS ---------- */
.section { padding: clamp(70px, 10vw, 130px) clamp(20px, 6vw, 90px); }
.section-kicker {
  text-align: center;
  text-transform: uppercase;
  letter-spacing: 3px;
  color: var(--cyan);
  font-size: .8rem;
  margin-bottom: 10px;
}
.section-title {
  text-align: center;
  font-family: "Orbitron", sans-serif;
  font-weight: 700;
  font-size: clamp(1.8rem, 5vw, 3rem);
  margin-bottom: 50px;
}

/* ---------- CARDS ---------- */
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 24px;
  max-width: 1200px;
  margin: 0 auto;
}
.card {
  position: relative;
  background: var(--glass);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 32px 28px;
  backdrop-filter: blur(12px);
  transition: transform .25s, border-color .3s, box-shadow .3s;
  transform-style: preserve-3d;
  overflow: hidden;
}
.card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--grad);
  opacity: 0;
  transition: opacity .3s;
  z-index: -1;
}
.card:hover { border-color: rgba(0,229,255,.5); box-shadow: 0 20px 60px rgba(0,0,0,.5), 0 0 30px rgba(0,229,255,.15); }
.card-icon {
  font-size: 2.4rem;
  width: 64px; height: 64px;
  display: grid; place-items: center;
  border-radius: 16px;
  background: rgba(0,229,255,.08);
  border: 1px solid var(--border);
  margin-bottom: 18px;
}
.card h3 { font-family: "Orbitron", sans-serif; font-size: 1.3rem; margin-bottom: 10px; }
.card p { color: var(--muted); margin-bottom: 16px; }
.card ul { list-style: none; display: flex; flex-direction: column; gap: 8px; }
.card li { color: var(--text); font-size: .92rem; padding-left: 22px; position: relative; }
.card li::before { content: "▹"; position: absolute; left: 0; color: var(--cyan); }

/* ---------- NOSOTROS ---------- */
.features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 24px;
  max-width: 1100px;
  margin: 0 auto;
}
.feature {
  background: var(--glass);
  border: 1px solid var(--border);
  border-left: 3px solid var(--cyan);
  border-radius: 16px;
  padding: 26px;
  backdrop-filter: blur(10px);
  transition: transform .25s;
}
.feature:hover { transform: translateY(-6px); }
.feature-dot {
  display: inline-block;
  width: 12px; height: 12px;
  border-radius: 50%;
  background: var(--grad);
  box-shadow: 0 0 14px var(--cyan);
  margin-bottom: 14px;
}
.feature h4 { font-family: "Orbitron", sans-serif; margin-bottom: 8px; font-size: 1.1rem; }
.feature p { color: var(--muted); font-size: .95rem; }

/* ---------- CONTACTO ---------- */
.contacto { display: flex; justify-content: center; }
.contact-card {
  width: 100%;
  max-width: 640px;
  background: var(--glass);
  border: 1px solid var(--border);
  border-radius: 24px;
  padding: clamp(30px, 5vw, 56px);
  backdrop-filter: blur(16px);
  text-align: center;
  box-shadow: 0 30px 80px rgba(0,0,0,.5);
}
.contact-card .section-title { margin-bottom: 12px; }
.contact-sub { color: var(--muted); margin-bottom: 32px; }
.contact-form {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  text-align: left;
}
.field.full, .btn.full { grid-column: 1 / -1; width: 100%; }
.contact-form input, .contact-form textarea {
  width: 100%;
  padding: 14px 16px;
  background: rgba(5,6,15,.6);
  border: 1px solid var(--border);
  border-radius: 12px;
  color: var(--text);
  font-family: inherit;
  font-size: 1rem;
  transition: border-color .25s, box-shadow .25s;
  resize: vertical;
}
.contact-form input:focus, .contact-form textarea:focus {
  outline: none;
  border-color: var(--cyan);
  box-shadow: 0 0 0 3px rgba(0,229,255,.15);
}
.contact-form input::placeholder, .contact-form textarea::placeholder { color: var(--muted); }
.contact-form .hp { position: absolute; left: -9999px; opacity: 0; }
.form-status { grid-column: 1 / -1; text-align: center; min-height: 1.2em; font-size: .95rem; }
.form-status.ok { color: #4ade80; }
.form-status.err { color: #ff7a7a; }
.contact-direct { margin-top: 22px; color: var(--muted); }
.contact-direct a { color: var(--cyan); text-decoration: none; }
.contact-direct a:hover { text-decoration: underline; }

/* ---------- FOOTER ---------- */
.footer {
  text-align: center;
  padding: 50px 20px 40px;
  border-top: 1px solid var(--border);
  color: var(--muted);
}
.footer-brand { font-family: "Orbitron", sans-serif; font-size: 1.3rem; color: var(--text); margin-bottom: 8px; }
.footer p { margin-bottom: 14px; font-size: .9rem; }
.footer small { font-size: .8rem; opacity: .7; }

/* ---------- Animaciones ---------- */
@keyframes float { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-6px); } }

.reveal { opacity: 0; transform: translateY(30px); transition: opacity .7s ease, transform .7s ease; }
.reveal.in { opacity: 1; transform: none; }

/* ---------- Responsive ---------- */
@media (max-width: 720px) {
  .nav-links { display: none; }
  .nav-burger { display: flex; }
  .nav-links.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 100%; right: 0; left: 0;
    background: rgba(5,6,15,.95);
    backdrop-filter: blur(14px);
    padding: 24px;
    gap: 18px;
    border-bottom: 1px solid var(--border);
  }
  .contact-form { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  *, .reveal { animation: none !important; transition: none !important; opacity: 1 !important; transform: none !important; }
}