/* ==========================================================================
   1. DESIGN TOKENS
   --------------------------------------------------------------------------
   Cores mescladas das duas versões do manual de marca (fundo profundo +
   paleta de 5 cores da versão "completa"). Tipografia trocada por decisão
   do cliente: Space Grotesk (display) + JetBrains Mono (labels/dados) +
   Inter (corpo), no lugar de Orbitron/Inter-só.
   ========================================================================== */
:root {
  /* cor — superfícies */
  --bg-deep:      #0A0F1C;   /* fundo principal */
  --bg-panel:     #111827;   /* cards, painéis */
  --bg-panel-2:   #151D2E;   /* hover / camadas sobre painel */
  --border-soft:  rgba(148, 163, 184, 0.14);
  --border-strong:rgba(148, 163, 184, 0.28);

  /* cor — acento (gradiente da marca) */
  --blue:   #2563EB;
  --cyan:   #00D4FF;
  --purple: #8B5CF6;

  /* cor — texto */
  --text-primary:   #F3F5F9;
  --text-secondary: #94A3B8;
  --text-muted:     #5B6478;

  /* tipografia */
  --font-display: 'Space Grotesk', sans-serif;
  --font-body:    'Inter', sans-serif;
  --font-mono:    'JetBrains Mono', monospace;

  /* layout */
  --maxw: 1180px;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 24px;
}

/* ==========================================================================
   2. RESET
   ========================================================================== */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg-deep);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul { margin: 0; padding: 0; list-style: none; }
h1, h2, h3, p { margin: 0; }
button { font-family: inherit; cursor: pointer; }

/* fundo com leve textura de grade + brilho radial, alusão ao "elementos
   gráficos" (grid de pontos) do manual */
body {
  background-image:
    radial-gradient(60% 45% at 82% -8%, rgba(139, 92, 246, 0.18), transparent 60%),
    radial-gradient(50% 40% at 10% 8%, rgba(0, 212, 255, 0.10), transparent 60%),
    linear-gradient(var(--bg-deep), var(--bg-deep));
  background-attachment: fixed;
}

.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 28px; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; scroll-behavior: auto !important; }
}

/* ==========================================================================
   3. TIPOGRAFIA UTILITÁRIA
   ========================================================================== */
.eyebrow {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  line-height: 1.4;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--cyan);
  display: inline-flex;
  align-items: center;
  gap: 10px;
}
.eyebrow::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 2px;
  background: linear-gradient(135deg, var(--blue), var(--cyan));
  box-shadow: 0 0 12px rgba(0, 212, 255, .55);
  transform: rotate(45deg);
  flex-shrink: 0;
}
h2.section-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(30px, 3.6vw, 44px);
  line-height: 1.12;
  letter-spacing: -0.035em;
  color: var(--text-primary);
  margin-top: 14px;
}
.section-lede {
  font-size: 16px;
  line-height: 1.75;
  color: var(--text-secondary);
  max-width: 560px;
  margin-top: 16px;
}
.grad-text {
  background: linear-gradient(90deg, var(--blue), var(--cyan));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* ==========================================================================
   4. LOGOTIPO
   ========================================================================== */
.logo {
  display: inline-flex;
  flex-direction: column;
  align-items: stretch;
  gap: 3px;
}
.logo img {
  width: 190px;
  height: auto;
}
.logo span {
  font-family: var(--font-mono);
  font-size: 9px;
  font-weight: 500;
  line-height: 1;
  letter-spacing: .16em;
  text-align: center;
  text-transform: uppercase;
  color: var(--text-secondary);
  white-space: nowrap;
}
.footer-logo img {
  width: 170px;
}
.footer-logo span { font-size: 8px; }

/* ==========================================================================
   5. HEADER / NAV
   ========================================================================== */
header {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(14px);
  background: rgba(10, 15, 28, 0.72);
  border-bottom: 1px solid var(--border-soft);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 34px;
}
.nav-links a {
  font-size: 14px;
  font-weight: 500;
  letter-spacing: -0.01em;
  color: var(--text-secondary);
  transition: color 0.2s ease;
  position: relative;
}
.nav-links a:hover { color: var(--text-primary); }
.nav-links a:not(.nav-contact)::after {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  bottom: -9px;
  height: 1px;
  background: linear-gradient(90deg, var(--blue), var(--cyan));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .25s ease;
}
.nav-links a:hover::after,
.nav-links a.active::after { transform: scaleX(1); }
.nav-links a.active { color: var(--text-primary); }
.nav-links a.nav-contact {
  font-family: var(--font-body);
  font-size: 13.5px;
  font-weight: 600;
  color: var(--text-primary);
  border: 1px solid var(--border-strong);
  padding: 8px 16px;
  border-radius: 100px;
  transition: border-color 0.2s ease, background 0.2s ease;
}
.nav-links a.nav-contact:hover {
  border-color: var(--cyan);
  background: rgba(0, 212, 255, 0.06);
}
.nav-toggle { display: none; }

@media (max-width: 820px) {
  .nav-links { display: none; }
  .nav-toggle {
    display: block;
    background: none;
    border: 1px solid var(--border-strong);
    border-radius: 8px;
    width: 40px;
    height: 40px;
    color: var(--text-primary);
  }
  .nav-links.open {
    display: flex;
    position: absolute;
    top: 76px;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
    background: var(--bg-panel);
    border-bottom: 1px solid var(--border-soft);
    padding: 16px 28px 24px;
  }
  .nav-links.open a { padding: 10px 0; width: 100%; }
}

/* ==========================================================================
   6. HERO
   --------------------------------------------------------------------------
   Elemento de assinatura: um diagrama de "malha" que se resolve na letra X
   (interseção entre tecnologia, estratégia e execução — conceito do
   próprio manual de marca), desenhado com stroke-animation ao carregar
   e pulsos ambientes contínuos e discretos.
   ========================================================================== */
.hero {
  position: relative;
  padding: 84px 0 100px;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  width: 460px;
  height: 460px;
  right: 4%;
  top: 0;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(0, 212, 255, .11), rgba(139, 92, 246, .06) 42%, transparent 70%);
  filter: blur(10px);
  animation: ambient-glow 7s ease-in-out infinite;
  pointer-events: none;
}
@keyframes ambient-glow {
  0%, 100% { transform: translate3d(-2%, -2%, 0) scale(.95); opacity: .65; }
  50% { transform: translate3d(3%, 3%, 0) scale(1.08); opacity: 1; }
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 40px;
  align-items: center;
}
.hero h1 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(40px, 5vw, 60px);
  line-height: 1.04;
  letter-spacing: -0.045em;
  margin-top: 20px;
}
.hero p.lede {
  margin-top: 22px;
  font-size: 17px;
  line-height: 1.75;
  color: var(--text-secondary);
  max-width: 480px;
}
.hero-tagline {
  margin-top: 32px;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  color: var(--text-muted);
  letter-spacing: 0.035em;
  text-transform: uppercase;
  display: flex;
  flex-wrap: wrap;
  gap: 8px 0;
}
.hero-tagline span { padding: 0 10px; border-right: 1px solid var(--border-soft); }
.hero-tagline span:first-child { padding-left: 0; }
.hero-tagline span:last-child { border-right: none; color: var(--cyan); }

.hero-visual {
  position: relative;
  aspect-ratio: 1 / 1;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform .35s cubic-bezier(.2,.8,.2,1);
  will-change: transform;
}
.hero-visual svg { width: 100%; height: 100%; }

.circuit-grid { opacity: .2; }
.orbit {
  fill: none;
  stroke: var(--border-soft);
  stroke-width: 1;
  stroke-dasharray: 2 10;
  transform-origin: center;
}
.orbit-outer { animation: orbit-spin 32s linear infinite; }
.orbit-inner { animation: orbit-spin 24s linear infinite reverse; opacity: .65; }
@keyframes orbit-spin { to { transform: rotate(360deg); } }

/* draw-in das linhas do diagrama */
.net-line {
  fill: none;
  stroke-width: 1.4;
  stroke-linecap: round;
  stroke-dasharray: 400;
  stroke-dashoffset: 400;
  animation: draw 1.6s cubic-bezier(.4,0,.2,1) forwards;
}
.net-line.mesh { stroke: var(--border-strong); stroke-width: 1; animation-delay: .05s; }
.net-line.x-main { stroke-width: 3; }
.net-line.x-a { stroke: url(#xGradientA); animation-delay: .12s; }
.net-line.x-b { stroke: url(#xGradientB); animation-delay: .28s; }
.x-glow {
  fill: none;
  stroke: var(--cyan);
  stroke-width: 9;
  stroke-linecap: round;
  opacity: .16;
  filter: url(#softGlow);
}
.signal-line {
  fill: none;
  stroke: var(--cyan);
  stroke-width: 1.4;
  stroke-linecap: round;
  stroke-dasharray: 1 34;
  opacity: .85;
  animation: signal-flow 3.2s linear infinite;
}
.signal-two {
  stroke: var(--purple);
  animation-direction: reverse;
  animation-duration: 4s;
}
@keyframes signal-flow { to { stroke-dashoffset: -210; } }
@keyframes draw { to { stroke-dashoffset: 0; } }

.core-halo {
  fill: var(--cyan);
  opacity: .08;
  filter: url(#softGlow);
  transform-box: fill-box;
  transform-origin: center;
  animation: core-breathe 3.2s ease-in-out infinite;
}
.core-ring {
  fill: rgba(10, 15, 28, .82);
  stroke: var(--cyan);
  stroke-width: 1;
  opacity: .8;
}
@keyframes core-breathe {
  0%, 100% { transform: scale(.82); opacity: .06; }
  50% { transform: scale(1.2); opacity: .16; }
}

.net-node {
  opacity: 0;
  animation: pop .5s ease forwards, pulse 3.2s ease-in-out infinite;
  animation-delay: 1.2s, 1.8s;
  transform-origin: center;
}
@keyframes pop { to { opacity: 1; } }
@keyframes pulse {
  0%, 100% { r: 3.2; opacity: .9; }
  50% { r: 4.6; opacity: .5; }
}

/* ==========================================================================
   7. SEÇÃO — O QUE SIGNIFICA N3X
   --------------------------------------------------------------------------
   Estrutura literal (N / 3 / X) em vez de numeração genérica — cada letra
   do nome carrega um significado real, então ela própria é o marcador.
   ========================================================================== */
.meaning {
  padding: 90px 0;
  border-top: 1px solid var(--border-soft);
}
.meaning-grid {
  margin-top: 48px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--border-soft);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-md);
  overflow: hidden;
}
.meaning-item {
  background: var(--bg-panel);
  padding: 36px 30px;
  transition: background .3s ease, transform .3s ease;
}
.meaning-item:hover {
  background: var(--bg-panel-2);
  transform: translateY(-3px);
}
.meaning-letter {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 40px;
  line-height: 1;
}
.meaning-item:nth-child(1) .meaning-letter { color: var(--blue); }
.meaning-item:nth-child(2) .meaning-letter { color: var(--purple); }
.meaning-item:nth-child(3) .meaning-letter { color: var(--cyan); }
.meaning-item h3 {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--text-primary);
  margin-top: 18px;
}
.meaning-item p {
  margin-top: 10px;
  font-size: 15px;
  line-height: 1.7;
  color: var(--text-secondary);
}

@media (max-width: 760px) {
  .meaning-grid { grid-template-columns: 1fr; }
}

/* ==========================================================================
   8. SEÇÃO — PILARES
   ========================================================================== */
.pillars { padding: 90px 0; border-top: 1px solid var(--border-soft); }
.pillars-head { max-width: 660px; }
.pillars-grid {
  margin-top: 48px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.pillar-card {
  --pointer-x: 50%;
  --pointer-y: 50%;
  background: var(--bg-panel);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-lg);
  padding: 32px 28px 30px;
  position: relative;
  overflow: hidden;
  transform-style: preserve-3d;
  transition: transform .2s ease, border-color .25s ease, background .25s ease;
}
.pillar-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(360px circle at var(--pointer-x) var(--pointer-y), rgba(0, 212, 255, .09), transparent 48%);
  opacity: 0;
  transition: opacity .25s ease;
  pointer-events: none;
}
.pillar-card:hover {
  transform: translateY(-4px);
  border-color: var(--border-strong);
  background: var(--bg-panel-2);
}
.pillar-card:hover::before { opacity: 1; }
.pillar-card > * { position: relative; z-index: 1; }
.pillar-icon {
  width: 46px;
  height: 46px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border-strong);
}
.pillar-icon svg { width: 22px; height: 22px; }
.pillar-card:nth-child(1) .pillar-icon { color: var(--blue); box-shadow: inset 0 0 0 1px rgba(37,99,235,.25); }
.pillar-card:nth-child(2) .pillar-icon { color: var(--purple); box-shadow: inset 0 0 0 1px rgba(139,92,246,.25); }
.pillar-card:nth-child(3) .pillar-icon { color: var(--cyan); box-shadow: inset 0 0 0 1px rgba(0,212,255,.25); }
.pillar-card h3 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 21px;
  letter-spacing: -0.025em;
  margin-top: 22px;
}
.pillar-card > p {
  margin-top: 10px;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--text-secondary);
}
.pillar-list {
  margin-top: 20px;
  padding-top: 20px;
  border-top: 1px solid var(--border-soft);
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.pillar-list li {
  font-family: var(--font-mono);
  font-size: 11.5px;
  line-height: 1.55;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 9px;
}
.pillar-list li::before {
  content: '';
  width: 5px;
  height: 5px;
  border-radius: 1px;
  background: currentColor;
  flex-shrink: 0;
}
.pillar-card:nth-child(1) .pillar-list li::before { background: var(--blue); }
.pillar-card:nth-child(2) .pillar-list li::before { background: var(--purple); }
.pillar-card:nth-child(3) .pillar-list li::before { background: var(--cyan); }

@media (max-width: 900px) {
  .pillars-grid { grid-template-columns: 1fr; }
}

/* ==========================================================================
   9. SEÇÃO — COMPROMISSO / COMO TRABALHAMOS
   ========================================================================== */
.commitment {
  padding: 90px 0;
  border-top: 1px solid var(--border-soft);
}
.commitment-grid {
  margin-top: 48px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}
.commitment-item .num {
  font-family: var(--font-mono);
  font-size: 10.5px;
  font-weight: 500;
  color: var(--text-muted);
  letter-spacing: 0.08em;
}
.commitment-item h3 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 20px;
  line-height: 1.25;
  letter-spacing: -0.025em;
  margin-top: 12px;
}
.commitment-item p {
  margin-top: 10px;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--text-secondary);
}

@media (max-width: 760px) {
  .commitment-grid { grid-template-columns: 1fr; gap: 36px; }
}

/* ==========================================================================
   10. CTA INSTITUCIONAL DISCRETO (sem apelo comercial forte)
   ========================================================================== */
.cta-band {
  padding: 70px 0;
  border-top: 1px solid var(--border-soft);
  border-bottom: 1px solid var(--border-soft);
}
.cta-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}
.cta-inner h2 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(22px, 2.6vw, 30px);
  max-width: 520px;
  line-height: 1.2;
  letter-spacing: -0.025em;
}
.cta-link {
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 600;
  color: var(--bg-deep);
  background: linear-gradient(90deg, var(--cyan), var(--blue));
  padding: 13px 24px;
  border-radius: 100px;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  white-space: nowrap;
  transition: filter .2s ease;
}
.cta-link:hover { filter: brightness(1.1); }

/* ==========================================================================
   11. FOOTER
   ========================================================================== */
footer { padding: 60px 0 34px; }
.footer-grid {
  display: grid;
  grid-template-columns: 1.3fr 1fr 1fr;
  gap: 40px;
}
.footer-brand p {
  margin-top: 14px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--text-secondary);
  max-width: 320px;
}
.footer-col h4 {
  font-family: var(--font-mono);
  font-size: 10.5px;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
}
.footer-col ul { margin-top: 16px; display: flex; flex-direction: column; gap: 11px; }
.footer-col a, .footer-col span {
  font-size: 14px;
  color: var(--text-secondary);
}
.footer-col a:hover { color: var(--text-primary); }
.footer-bottom {
  margin-top: 56px;
  padding-top: 24px;
  border-top: 1px solid var(--border-soft);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-muted);
}

@media (max-width: 760px) {
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
}

/* placeholder tag — sinaliza visualmente o que precisa ser trocado por
   conteúdo real antes de publicar (ver README) */
.placeholder-flag {
  font-family: var(--font-mono);
  font-size: 10px;
  color: #FBBF24;
  border: 1px dashed rgba(251, 191, 36, .4);
  border-radius: 5px;
  padding: 1px 6px;
  margin-left: 8px;
  vertical-align: middle;
}

.net-node-1 { animation-delay: 1.2s, 1.8s; }
.net-node-2 { animation-delay: 1.3s, 2.1s; }
.net-node-3 { animation-delay: 1.4s, 2.4s; }
.net-node-4 { animation-delay: 1.5s, 1.6s; }
.net-node-5 { animation-delay: 1.6s, 1.9s; }
.net-node-6 { animation-delay: 1.7s, 2.6s; }
.net-node-7 { animation-delay: 1.8s, 2.2s; }

/* Entrada progressiva das seções, ativada apenas quando há JavaScript. */
.motion-ready .reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity .7s ease, transform .7s cubic-bezier(.2,.8,.2,1);
  transition-delay: var(--reveal-delay, 0ms);
}
.motion-ready .reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  .hero::before { animation: none; }
  .hero-visual { transform: none !important; }
  .motion-ready .reveal { opacity: 1; transform: none; }
  .pillar-card { transform: none !important; }
}

@media (max-width: 820px) {
  .hero { padding: 64px 0 72px; }
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  .hero h1 {
    max-width: 680px;
    font-size: clamp(38px, 10vw, 52px);
  }
  .hero p.lede { max-width: 600px; }
  .hero-visual {
    width: min(100%, 430px);
    margin: -20px auto -48px;
  }
}

@media (max-width: 520px) {
  .wrap { padding-inline: 20px; }
  .logo img { width: 164px; }
  .logo span { font-size: 7.5px; }
  .hero h1 { font-size: clamp(34px, 11vw, 44px); }
  .hero p.lede { font-size: 16px; }
  .hero-tagline { gap: 10px 0; }
}