/* Capa de entrada — partículas (main.js + #npNeuralNet) em ecrã inteiro */
body.np-capa {
  margin: 0;
  min-height: 100vh;
  min-height: 100dvh;
  overflow: hidden;
  background: #0a0a0f;
}

body.np-capa .site-header.np-capa-stage {
  position: fixed;
  inset: 0;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0;
  padding: clamp(1.5rem, 4vw, 3rem);
  border: none;
  background: radial-gradient(ellipse 80% 60% at 50% 40%, #12121a 0%, #0a0a0f 70%);
  backdrop-filter: none;
  overflow: hidden;
}

body.np-capa .np-capa-stage .neural-fx {
  height: 100% !important;
  z-index: 0;
}

body.np-capa .np-capa-inner {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  max-width: 36rem;
  width: 100%;
  gap: clamp(1.25rem, 3vw, 2rem);
}

body.np-capa .np-capa-brands {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.25rem;
  width: 100%;
}

body.np-capa .np-capa-brand {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.55rem;
}

body.np-capa .np-capa-brand__logo--oi {
  width: clamp(4.5rem, 18vw, 7rem);
  height: auto;
  display: block;
}

body.np-capa .np-capa-brand__logo--np {
  width: clamp(7rem, 28vw, 11rem);
  height: auto;
  display: block;
}

body.np-capa .np-capa-brand__name {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
  font-size: clamp(1.05rem, 2.8vw, 1.35rem);
  font-weight: 600;
  letter-spacing: 0.04em;
  color: #f2f2f5;
}

body.np-capa .np-capa-apresenta {
  margin: 0;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: #a100ff;
}

body.np-capa .np-capa-frase {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
  font-size: clamp(1.35rem, 4.2vw, 2rem);
  font-weight: 600;
  line-height: 1.25;
  letter-spacing: -0.02em;
  color: #f2f2f5;
  text-wrap: balance;
}

body.np-capa .np-capa-citacao {
  margin: -0.65rem 0 0;
  font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  color: color-mix(in srgb, #f2f2f5 55%, transparent);
}

body.np-capa .np-capa-entrar {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-top: 0.35rem;
  padding: 0.85rem 2.4rem;
  border: 1px solid color-mix(in srgb, #00e5ff 55%, transparent);
  border-radius: 2px;
  background: color-mix(in srgb, #a100ff 22%, transparent);
  color: #f2f2f5;
  font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
  font-size: 0.95rem;
  font-weight: 650;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  text-decoration: none;
  transition: background 0.2s ease, border-color 0.2s ease, transform 0.2s ease;
}

body.np-capa .np-capa-entrar:hover,
body.np-capa .np-capa-entrar:focus-visible {
  background: color-mix(in srgb, #a100ff 40%, transparent);
  border-color: #00e5ff;
  outline: none;
}

body.np-capa .np-capa-entrar:active {
  transform: scale(0.98);
}

@media (prefers-reduced-motion: reduce) {
  body.np-capa .np-capa-entrar {
    transition: none;
  }
}