@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&family=JetBrains+Mono:wght@400;500&display=swap');

:root {
  /* Colores base */
  --bg-0: #03050d;
  --bg-1: #070c18;
  --bg-2: #0a1020;
  --bg-3: #0e1628;
  --bg-card: #0d1526;
  --bg-card-hover: #111d34;

  /* Acentos */
  --cyan: #22d3ee;
  --cyan-dim: rgba(34, 211, 238, 0.12);
  --cyan-glow: rgba(34, 211, 238, 0.25);
  --blue: #3b82f6;
  --blue-dim: rgba(59, 130, 246, 0.12);
  --violet: #8b5cf6;
  --violet-dim: rgba(139, 92, 246, 0.1);
  --green: #10b981;

  /* Texto */
  --text-1: #f1f5f9;
  --text-2: #94a3b8;
  --text-3: #475569;
  --text-4: #1e293b;

  /* Bordes */
  --border: rgba(255,255,255,0.06);
  --border-md: rgba(255,255,255,0.10);
  --border-strong: rgba(34,211,238,0.3);

  /* Tipografía */
  --font-sans: 'Inter', -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  /* Espaciado */
  --radius: 14px;
  --radius-sm: 8px;
  --radius-lg: 20px;
  --radius-full: 9999px;
}

*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: var(--font-sans);
  background: var(--bg-0);
  color: var(--text-1);
  line-height: 1.65;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

/* ── Fondo global ── */
.bg-grid {
  position: fixed; inset: 0; z-index: -3;
  background-image:
    linear-gradient(rgba(255,255,255,0.022) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.022) 1px, transparent 1px);
  background-size: 56px 56px;
}

.bg-glow-top {
  position: fixed; top: -20%; left: 50%; transform: translateX(-50%);
  width: 900px; height: 600px; z-index: -2;
  background: radial-gradient(ellipse at center, rgba(34,211,238,0.07) 0%, transparent 65%);
  pointer-events: none;
}

.bg-glow-bottom {
  position: fixed; bottom: -20%; right: -10%;
  width: 700px; height: 500px; z-index: -2;
  background: radial-gradient(ellipse at center, rgba(139,92,246,0.06) 0%, transparent 65%);
  pointer-events: none;
}

/* ── Navegación ── */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 900;
  display: flex; justify-content: space-between; align-items: center;
  padding: 0 5%;
  height: 68px;
  border-bottom: 1px solid var(--border);
  background: rgba(3, 5, 13, 0.75);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}

.nav-logo {
  font-size: 1.2rem; font-weight: 800;
  text-decoration: none; color: var(--text-1);
  letter-spacing: -0.3px;
}
.nav-logo em { color: var(--cyan); font-style: normal; }

.nav-links { display: flex; list-style: none; gap: 2rem; }
.nav-links a {
  color: var(--text-2); text-decoration: none;
  font-size: 0.875rem; font-weight: 500;
  transition: color 0.2s;
  position: relative; padding-bottom: 2px;
}
.nav-links a::after {
  content: ''; position: absolute; bottom: -2px; left: 0;
  width: 0; height: 1px; background: var(--cyan);
  transition: width 0.25s;
}
.nav-links a:hover { color: var(--text-1); }
.nav-links a:hover::after, .nav-links a.active::after { width: 100%; }
.nav-links a.active { color: var(--cyan); }

.nav-cta {
  background: var(--cyan);
  color: #020c10; font-weight: 700;
  padding: 0.55rem 1.3rem; border-radius: var(--radius-sm);
  text-decoration: none; font-size: 0.85rem;
  transition: transform 0.2s, box-shadow 0.2s;
  white-space: nowrap;
}
.nav-cta:hover { transform: translateY(-1px); box-shadow: 0 4px 20px var(--cyan-glow); }

.nav-hamburger { display: none; flex-direction: column; gap: 5px; cursor: pointer; }
.nav-hamburger span { width: 22px; height: 2px; background: var(--text-2); border-radius: 2px; transition: 0.3s; }

@media (max-width: 860px) {
  .nav-links { display: none; }
  .nav-hamburger { display: flex; }
}

/* ── Contenedor general ── */
.contenedor { max-width: 1160px; margin: 0 auto; padding: 0 5%; }
.pagina-wrap { padding-top: 68px; min-height: 100vh; }

/* ── Typografía de secciones ── */
.eyebrow {
  display: inline-flex; align-items: center; gap: 6px;
  color: var(--cyan); font-size: 0.75rem; font-weight: 600;
  letter-spacing: 1.8px; text-transform: uppercase;
  margin-bottom: 1rem;
}
.eyebrow::before {
  content: ''; width: 20px; height: 1px; background: var(--cyan);
}

.titulo-seccion {
  font-size: clamp(1.8rem, 3.5vw, 2.6rem);
  font-weight: 800; letter-spacing: -0.8px;
  line-height: 1.15; margin-bottom: 1rem;
}
.titulo-seccion .grad {
  background: linear-gradient(100deg, var(--cyan), var(--blue));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
}

.subtitulo-seccion {
  color: var(--text-2); font-size: 1.05rem;
  max-width: 520px; margin-bottom: 3rem;
}

/* ── Tarjetas ── */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem;
  transition: transform 0.25s, border-color 0.25s, box-shadow 0.25s;
  position: relative; overflow: hidden;
}
.card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(34,211,238,0.3), transparent);
  opacity: 0; transition: opacity 0.3s;
}
.card:hover {
  transform: translateY(-4px);
  border-color: rgba(34,211,238,0.2);
  box-shadow: 0 20px 60px rgba(0,0,0,0.3), 0 0 0 1px rgba(34,211,238,0.05);
}
.card:hover::before { opacity: 1; }

.card-icon {
  width: 44px; height: 44px; border-radius: 10px;
  background: var(--cyan-dim); display: flex; align-items: center;
  justify-content: center; margin-bottom: 1.3rem;
  color: var(--cyan); font-size: 1.2rem; flex-shrink: 0;
}

/* ── Botones ── */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 0.85rem 1.8rem; border-radius: var(--radius-sm);
  font-weight: 600; font-size: 0.9rem;
  text-decoration: none; cursor: pointer; border: none;
  transition: transform 0.2s, box-shadow 0.2s, opacity 0.2s;
  white-space: nowrap;
}
.btn:hover { transform: translateY(-2px); }
.btn:active { transform: translateY(0); }

.btn-primary {
  background: linear-gradient(100deg, var(--blue), var(--cyan));
  color: #fff;
  box-shadow: 0 4px 20px rgba(34,211,238,0.2);
}
.btn-primary:hover { box-shadow: 0 6px 28px rgba(34,211,238,0.35); }

.btn-outline {
  background: transparent;
  border: 1px solid var(--border-md);
  color: var(--text-1);
}
.btn-outline:hover { border-color: var(--cyan); background: var(--cyan-dim); }

.btn-cyan {
  background: var(--cyan); color: #020c10; font-weight: 700;
}
.btn-cyan:hover { box-shadow: 0 4px 20px var(--cyan-glow); }

/* ── Grillas ── */
.grid-3 { display: grid; grid-template-columns: repeat(auto-fit, minmax(290px,1fr)); gap: 1.5rem; }
.grid-2 { display: grid; grid-template-columns: repeat(auto-fit, minmax(340px,1fr)); gap: 2rem; }
.grid-4 { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px,1fr)); gap: 1.5rem; }

/* ── Badge / tags ── */
.badge {
  display: inline-flex; align-items: center; gap: 6px;
  background: var(--bg-card); border: 1px solid var(--border-md);
  padding: 0.4rem 1rem; border-radius: var(--radius-full);
  font-size: 0.8rem; color: var(--text-2);
}
.badge .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--green); animation: pulso 2s infinite; }
@keyframes pulso { 0%,100%{opacity:1;transform:scale(1);} 50%{opacity:0.4;transform:scale(0.8);} }

.tag {
  display: inline-block; padding: 0.25rem 0.75rem;
  border-radius: var(--radius-full); font-size: 0.75rem; font-weight: 600;
}
.tag-cyan { background: var(--cyan-dim); color: var(--cyan); }
.tag-blue { background: var(--blue-dim); color: var(--blue); }
.tag-violet { background: var(--violet-dim); color: var(--violet); }

/* ── Divisor ── */
.divisor {
  height: 1px; width: 100%;
  background: linear-gradient(90deg, transparent, var(--border-md), transparent);
  margin: 4rem 0;
}

/* ── Footer ── */
footer {
  border-top: 1px solid var(--border);
  padding: 3rem 5%;
  text-align: center;
}
footer p { color: var(--text-3); font-size: 0.85rem; }
footer a { color: var(--text-2); text-decoration: none; margin: 0 0.6rem; }
footer a:hover { color: var(--cyan); }

/* ── Scrollbar custom ── */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg-0); }
::-webkit-scrollbar-thumb { background: var(--border-md); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-3); }

/* ── Animaciones ── */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(24px); }
  to { opacity: 1; transform: translateY(0); }
}
.fade-up { animation: fadeUp 0.7s ease forwards; }
.fade-up-delay-1 { animation-delay: 0.1s; opacity: 0; }
.fade-up-delay-2 { animation-delay: 0.2s; opacity: 0; }
.fade-up-delay-3 { animation-delay: 0.35s; opacity: 0; }
.fade-up-delay-4 { animation-delay: 0.5s; opacity: 0; }

/* ── Sección padding estándar ── */
.seccion { padding: 5rem 0; }
.seccion-header { margin-bottom: 3.5rem; }