/* ============================================
   ZENIT — Estilos Base
   ============================================ */

html {
  scroll-behavior: smooth;
  scroll-padding-top: 5rem;
}

body {
  background-color: #05070B;
  color: #F8FAFC;
  font-family: 'Inter', sans-serif;
  overflow-x: hidden;
}

/* Fondo cuadrícula decorativa */
.grid-bg {
  background-size: 48px 48px;
  background-image: 
    linear-gradient(to right, rgba(255, 255, 255, 0.035) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255, 255, 255, 0.035) 1px, transparent 1px);
}

/* Glow radial superior */
.radial-glow-top {
  background: radial-gradient(circle 900px at 50% -10%, rgba(0, 102, 255, 0.2), rgba(0, 229, 255, 0.05) 50%, transparent 80%);
}

/* Modal backdrop blur */
.modal-backdrop {
  backdrop-filter: blur(16px);
}

/* ============================================
   Navegación — ScrollSpy activo
   ============================================ */

.nav-link.active {
  color: #00E5FF !important;
  position: relative;
}

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: -6px;
  left: 0;
  width: 100%;
  height: 2px;
  background: #00E5FF;
  border-radius: 9999px;
  box-shadow: 0 0 10px #00E5FF;
}

/* Navegación móvil — activo */
.mobile-nav-link.active {
  color: #00E5FF !important;
  background: rgba(0, 102, 255, 0.15);
  border-left: 3px solid #00E5FF;
}