/* ==========================================================================
   Jober Cavalcante · A Placa do Engenheiro
   Identidade própria: PCB viva · cobre (hardware) + ciano (sinal/software)
   DNA: narrative-landing-pages · zero dependências · dark-first
   ========================================================================== */

:root {
  /* Fundos · 4 camadas tonais azul-marinho (nunca preto puro) */
  --ink: #07090f;
  --ink-soft: #0b111c;
  --surface: #101826;
  --surface-2: #16233a;

  /* Sinal (software): único acento global de ação */
  --accent: #1ae3e7;
  --accent-strong: #10b9be;
  --accent-dark: #0a6b70;

  /* Cobre (hardware): segundo acento justificado pela narrativa hw↔sw */
  --copper: #d98e4a;
  --copper-soft: rgba(217, 142, 74, .55);
  --copper-dim: rgba(217, 142, 74, .16);

  /* Acentos locais de case study (um por projeto) */
  --case-stream: #00c2ff;
  --case-sonar: #ffcf48;
  --case-recanto: #6fdc8c;
  --case-arte: #ff6a5e;

  /* Texto · 3 níveis */
  --text: #e8f4ff;
  --muted: #a8c3df;
  --dim: #8fabc7;

  /* Linhas */
  --line: rgba(26, 227, 231, .12);
  --line-strong: rgba(26, 227, 231, .28);
  --line-copper: rgba(217, 142, 74, .18);

  /* Chanfro 45° · assinatura geométrica da placa (quebra o raio 16px dos outros projetos) */
  --chamfer: 16px;
  --chamfer-sm: 10px;

  /* Native Type Rule: nenhuma fonte remota */
  --font-title: "Space Grotesk", "Avenir Next", "Segoe UI Variable Display", "Segoe UI", system-ui, sans-serif;
  --font-body: "Manrope", "Segoe UI", system-ui, sans-serif;
  --font-mono: "JetBrains Mono", "Cascadia Mono", ui-monospace, "SF Mono", monospace;
}

/* ---------- base ---------- */

*, *::before, *::after { box-sizing: border-box; }

html, body { overflow-x: clip; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background:
    radial-gradient(48% 34% at 85% -8%, rgba(26, 227, 231, .06), transparent 62%),
    radial-gradient(36% 28% at 6% 18%, rgba(217, 142, 74, .05), transparent 60%),
    var(--ink);
  color: var(--text);
  font: 400 clamp(1rem, 1.2vw, 1.125rem)/1.7 var(--font-body);
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3 { margin: 0; color: var(--text); font-family: var(--font-title); }

h1 {
  font-size: clamp(2.6rem, 6.5vw, 4.6rem);
  line-height: 1.05;
  letter-spacing: -.03em;
  font-weight: 700;
  text-wrap: balance;
}

h2 {
  font-size: clamp(1.9rem, 4.5vw, 3.1rem);
  line-height: 1.1;
  letter-spacing: -.02em;
  font-weight: 700;
  text-wrap: balance;
}

h3 {
  font-size: clamp(1.25rem, 2.5vw, 1.6rem);
  line-height: 1.25;
  font-weight: 600;
}

p { margin: 0; color: var(--muted); }

a { color: var(--accent); }

::selection { background: rgba(26, 227, 231, .28); color: var(--text); }

:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 4px; }

.container { width: min(1140px, 100% - 2.5rem); margin-inline: auto; }

section { padding-block: clamp(4rem, 9vw, 7rem); position: relative; }

main { position: relative; z-index: 1; }

.skip-link {
  position: fixed; top: -100px; left: 1rem; z-index: 100;
  background: var(--accent); color: var(--ink);
  padding: .6rem 1rem;
  font: 700 .85rem/1 var(--font-body); text-decoration: none;
  transition: top .25s ease;
}
.skip-link:focus { top: 1rem; }

/* ---------- camadas fixas: board canvas + trace svg ---------- */

.board-canvas {
  position: fixed; inset: 0; z-index: -1;
  width: 100%; height: 100%;
  pointer-events: none;
}

#trace {
  position: absolute; top: 0; left: 0;
  z-index: 0;
  pointer-events: none;
  overflow: visible;
}

#trace .trace-path {
  fill: none;
  stroke: var(--copper-soft);
  stroke-width: 1.5;
  opacity: .5;
}

#trace .trace-glow {
  fill: none;
  stroke: var(--accent);
  stroke-width: 2;
  filter: drop-shadow(0 0 6px rgba(26, 227, 231, .7));
}

#trace .trace-node {
  fill: var(--ink-soft);
  stroke: var(--copper-soft);
  stroke-width: 1.5;
  transition: fill .4s ease, stroke .4s ease;
}

#trace .trace-node.is-lit {
  fill: var(--accent);
  stroke: var(--accent);
  filter: drop-shadow(0 0 8px rgba(26, 227, 231, .8));
}

#trace .trace-head {
  fill: var(--text);
  filter: drop-shadow(0 0 10px rgba(26, 227, 231, .9));
}

/* pulso final: o sinal viaja até o conector */
#trace .trace-pulse {
  fill: #d8fdff;
  filter: drop-shadow(0 0 12px rgba(26, 227, 231, 1));
}

/* circuito fechado: traço completo ganha brilho máximo */
#trace.is-complete .trace-glow {
  filter: drop-shadow(0 0 11px rgba(26, 227, 231, .95));
}

body.circuit-closed #trace .trace-node.is-lit {
  filter: drop-shadow(0 0 10px rgba(26, 227, 231, .9));
}

/* ---------- átomos ---------- */

.kicker {
  display: flex; align-items: center; gap: .7rem;
  margin: 0 0 1.1rem;
  font: 500 .78rem/1 var(--font-mono);
  letter-spacing: .18em; text-transform: uppercase;
  color: var(--accent);
}

.kicker__pad {
  width: 10px; height: 10px;
  border: 2px solid var(--copper);
  border-radius: 50%;
  background: var(--ink);
  box-shadow: inset 0 0 0 2px var(--ink);
  flex: none;
  transition: background .4s ease;
}

.is-visible .kicker__pad,
section.is-lit .kicker__pad { background: var(--accent); }

.kicker__layer {
  color: var(--copper);
  border: 1px solid var(--line-copper);
  padding: .28rem .55rem;
  font-size: .66rem;
  letter-spacing: .16em;
}

.eyebrow {
  display: inline-flex; gap: .55rem; align-items: center;
  font: 500 .75rem/1 var(--font-mono);
  letter-spacing: .2em; text-transform: uppercase;
  color: var(--accent);
  padding: .55rem .95rem;
  border: 1px solid var(--line-strong);
  background: rgba(26, 227, 231, .06);
  clip-path: polygon(0 0, calc(100% - var(--chamfer-sm)) 0, 100% var(--chamfer-sm), 100% 100%, 0 100%);
}

.live-dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--accent);
  animation: pulse 2.2s ease-in-out infinite;
}

@keyframes pulse {
  0%   { box-shadow: 0 0 0 0 rgba(26, 227, 231, .45); }
  70%  { box-shadow: 0 0 0 9px rgba(26, 227, 231, 0); }
  100% { box-shadow: 0 0 0 0 rgba(26, 227, 231, 0); }
}

.lead {
  font-size: clamp(1.05rem, 1.5vw, 1.2rem);
  line-height: 1.65;
  max-width: 40rem;
}

.ghost {
  position: absolute; z-index: -1;
  font: 800 clamp(4.5rem, 14vw, 10rem)/1 var(--font-title);
  letter-spacing: -.02em;
  color: rgba(26, 227, 231, .05);
  user-select: none; pointer-events: none; white-space: nowrap;
}

.ghost--copper { color: rgba(217, 142, 74, .06); }

.hero .ghost { top: 8%; right: -4%; }

.ghost--fundacao { top: 6%; right: -3%; }

.ghost--produtos { top: 4%; left: -2%; }

.tag {
  display: inline-block;
  font: 500 .72rem/1 var(--font-mono);
  letter-spacing: .12em; text-transform: uppercase;
  color: var(--dim);
  border: 1px solid var(--line);
  padding: .4rem .8rem;
  clip-path: polygon(0 0, calc(100% - 8px) 0, 100% 8px, 100% 100%, 0 100%);
}

/* ---------- nav ---------- */

.nav {
  position: fixed; inset-inline: 0; top: 0; z-index: 50;
  background: rgba(7, 9, 15, .8);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line-copper);
}

.nav__inner {
  display: flex; align-items: center; justify-content: space-between;
  gap: 1rem; min-height: 64px;
}

.nav__brand {
  display: inline-flex; align-items: center; gap: .65rem;
  color: var(--text); text-decoration: none;
  font: 700 1rem/1 var(--font-title); letter-spacing: -.01em;
}

.nav__brand img {
  display: block;
  width: 38px; height: 38px;
  object-fit: cover;
  border-radius: 9px;
  border: 1px solid var(--line-copper);
}

.nav__brand small {
  display: block;
  font: 500 .62rem/1 var(--font-mono);
  letter-spacing: .22em; text-transform: uppercase;
  color: var(--copper);
  margin-top: .2rem;
}

.nav-links {
  display: flex; align-items: center; gap: 1.4rem;
  list-style: none; margin: 0; padding: 0;
}

.nav-links a {
  color: var(--muted); text-decoration: none;
  font: 600 .86rem/1 var(--font-body);
  padding: .5rem 0;
  transition: color .25s ease;
}

.nav-links a:hover { color: var(--text); }

/* especificidade maior que .nav-links a: texto escuro sobre ciano + padding do botão */
.nav-links a.btn--primary { color: var(--ink); }
.nav-links a.btn { padding: .55rem 1.1rem; }

.nav-toggle {
  display: none;
  background: none; border: 1px solid var(--line-copper);
  color: var(--text);
  width: 44px; height: 44px;
  align-items: center; justify-content: center;
  cursor: pointer;
}

/* ---------- botões (chanfro de um canto) ---------- */

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .55rem;
  min-height: 44px;
  padding: .72rem 1.35rem;
  border: 1px solid transparent;
  font: 700 .95rem/1 var(--font-body);
  text-decoration: none; cursor: pointer;
  clip-path: polygon(0 0, calc(100% - var(--chamfer-sm)) 0, 100% var(--chamfer-sm), 100% 100%, 0 100%);
  transition: background .25s ease, border-color .25s ease, transform .15s ease;
}

.btn:active { transform: translateY(1px) scale(.98); }

.btn--primary { background: var(--accent); color: var(--ink); }
a.btn--primary { color: var(--ink); }
.btn--primary:hover { background: var(--accent-strong); }

.btn--ghost {
  background: rgba(26, 227, 231, .06);
  border-color: var(--line-strong);
  color: var(--text);
}
.btn--ghost:hover { border-color: var(--accent); }

.btn--nav { min-height: 40px; padding: .55rem 1.1rem; font-size: .85rem; }

.btn.is-dormant {
  background: var(--surface);
  border-color: var(--line);
  color: var(--dim);
  cursor: not-allowed;
}
.btn.is-dormant:hover { border-color: var(--line-strong); }

/* ---------- hero: texto + boot log ---------- */

.hero {
  min-height: 100vh;
  min-height: 100svh;
  display: flex; align-items: center;
  padding-top: clamp(6rem, 12vh, 8rem);
}

.hero .ghost { top: 8%; right: -4%; }

.hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(0, .9fr);
  gap: clamp(2rem, 5vw, 4rem);
  align-items: center;
}

.hero__copy { display: grid; gap: 1.5rem; }

.hero h1 em {
  font-style: normal;
  color: var(--accent);
  text-shadow: 0 0 26px rgba(26, 227, 231, .35);
}

.hero__meta {
  font: 500 .78rem/1.9 var(--font-mono);
  letter-spacing: .14em; text-transform: uppercase;
  color: var(--dim);
}

.hero__meta b { color: var(--copper); font-weight: 500; }

.hero__actions { display: flex; flex-wrap: wrap; gap: .8rem; }

.hero__scroll-hint {
  font: 500 .72rem/1 var(--font-mono);
  letter-spacing: .2em; text-transform: uppercase;
  color: var(--dim);
  display: inline-flex; align-items: center; gap: .6rem;
}

.hero__scroll-hint::after {
  content: "";
  width: 42px; height: 1px;
  background: linear-gradient(90deg, var(--copper), transparent);
}

/* boot log · o hardware acordando o software */
.boot {
  margin: 0;
  background: var(--ink-soft);
  border: 1px solid var(--line-copper);
  clip-path: polygon(0 0, calc(100% - var(--chamfer)) 0, 100% var(--chamfer), 100% 100%, 0 100%);
  padding: 1.4rem 1.5rem;
  font: 400 .82rem/1.9 var(--font-mono);
  color: var(--dim);
  min-height: 15.5rem;
}

.boot__bar {
  display: flex; gap: .45rem; align-items: center;
  margin-bottom: 1rem;
  padding-bottom: .8rem;
  border-bottom: 1px solid var(--line-copper);
}

.boot__bar i {
  width: 9px; height: 9px; border-radius: 50%;
  background: var(--surface-2);
  border: 1px solid var(--line-copper);
}

.boot__bar span {
  margin-left: auto;
  font: 500 .62rem/1 var(--font-mono);
  letter-spacing: .2em; text-transform: uppercase;
  color: var(--copper);
}

.boot__line { display: block; white-space: pre-wrap; }

.boot__line::before { content: "> "; color: var(--copper); }

.boot__line--hw { color: var(--copper-soft); }
.boot__line--sw { color: var(--muted); }
.boot__line--ai { color: var(--accent); }

.boot__cursor {
  display: inline-block;
  width: .55em; height: 1em;
  background: var(--accent);
  vertical-align: text-bottom;
  animation: blink 1s steps(1) infinite;
}

@keyframes blink { 50% { opacity: 0; } }

/* ---------- método: chips (CI) ---------- */

.chips {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.25rem;
  margin: 3rem 0 0; padding: 0;
}

.chip {
  position: relative;
  background: var(--surface);
  border: 1px solid var(--line-copper);
  padding: 1.5rem 1.3rem;
  display: grid; gap: .6rem; align-content: start;
  clip-path: polygon(0 0, calc(100% - var(--chamfer-sm)) 0, 100% var(--chamfer-sm), 100% 100%, var(--chamfer-sm) 100%, 0 calc(100% - var(--chamfer-sm)));
  transition: border-color .3s ease, transform .3s ease;
}

.chip:hover { border-color: var(--copper-soft); transform: translateY(-4px); }

/* pinos do CI nas laterais */
.chip::before, .chip::after {
  content: "";
  position: absolute; top: 14px; bottom: 14px;
  width: 6px;
  background: repeating-linear-gradient(180deg, var(--copper-dim) 0 2px, transparent 2px 12px);
}
.chip::before { left: 4px; }
.chip::after { right: 4px; }

.chip__id {
  font: 600 .66rem/1 var(--font-mono);
  letter-spacing: .18em;
  color: var(--copper);
}

.chip h3 { font-size: 1.05rem; text-transform: uppercase; letter-spacing: .04em; }

.chip p { font-size: .92rem; }

/* ---------- cards chanfrados ---------- */

.card {
  background: var(--surface);
  border: 1px solid var(--line);
  padding: 1.6rem 1.5rem;
  display: grid; gap: .8rem; align-content: start;
  clip-path: polygon(0 0, calc(100% - var(--chamfer)) 0, 100% var(--chamfer), 100% 100%, 0 100%, 0 calc(100% - var(--chamfer)));
  transition: border-color .3s ease, transform .3s ease;
}

.card:hover { border-color: var(--line-strong); transform: translateY(-4px); }

.card h3 { font-size: 1.25rem; }

.card .tag { justify-self: start; }

.found-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 1.25rem;
  margin-top: 3rem;
}

.found-grid .card--wide { grid-column: span 7; }
.found-grid .card--mid  { grid-column: span 5; }
.found-grid .card--full { grid-column: 1 / -1; }

/* stack: sinais agrupados por camada da placa */
.stack {
  margin-top: 1.25rem;
  grid-column: 1 / -1;
  background: var(--ink-soft);
  border: 1px solid var(--line-copper);
  padding: 1.7rem 1.6rem;
  display: grid; gap: 1.2rem;
  clip-path: polygon(0 0, calc(100% - var(--chamfer)) 0, 100% var(--chamfer), 100% 100%, 0 100%, 0 calc(100% - var(--chamfer)));
}

.stack > h3 {
  font: 600 .8rem/1 var(--font-mono);
  letter-spacing: .18em; text-transform: uppercase;
  color: var(--copper);
}

.stack-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 1.1rem 2rem;
}

.stack-group {
  display: grid; gap: .35rem; align-content: start;
}

.stack-group span {
  font: 600 .64rem/1 var(--font-mono);
  letter-spacing: .18em; text-transform: uppercase;
  color: var(--accent);
}

.stack-group p {
  font: 400 .8rem/1.8 var(--font-mono);
  letter-spacing: .04em;
  color: var(--dim);
}

.card--full {
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 1.5rem;
  background: linear-gradient(120deg, var(--surface-2), var(--ink-soft));
  border-color: var(--line-copper);
}

/* trajetória: trilha de marcos na placa */
.card--trajetoria {
  grid-template-columns: 1fr;
  align-items: start;
  gap: 1.3rem;
}

/* destaque Extrapola: reconhecimento institucional (2020, pandemia) */
.card--extrapola {
  grid-template-columns: 1fr auto;
  align-items: center;
  border-color: var(--copper-soft);
  background:
    radial-gradient(70% 140% at 92% 0%, rgba(217, 142, 74, .14), transparent 55%),
    linear-gradient(120deg, var(--surface-2), var(--ink-soft));
}

/* ordem DOM: selo antes do texto (float no mobile); desktop posiciona por célula */
.card--extrapola > div { grid-column: 1; grid-row: 1; }
.card--extrapola .extrapola__seal { grid-column: 2; grid-row: 1; }

.extrapola__seal {
  width: 92px; height: 92px;
  border-radius: 50%;
  border: 1px solid var(--copper-soft);
  background:
    radial-gradient(circle, var(--copper-dim) 0 40%, transparent 41%),
    var(--ink-soft);
  display: grid; place-content: center; text-align: center; gap: .3rem;
}

.extrapola__seal b {
  font: 600 .6rem/1.2 var(--font-mono);
  letter-spacing: .16em; text-transform: uppercase;
  color: var(--copper);
  display: block;
}

.extrapola__seal i {
  font: 500 .58rem/1 var(--font-mono);
  font-style: normal;
  letter-spacing: .24em;
  color: var(--dim);
  display: block;
}

.traj-head {
  display: flex; align-items: center; justify-content: space-between;
  gap: 1rem; flex-wrap: wrap;
}

.traj {
  list-style: none; margin: 0; padding: 0;
  display: grid; gap: 1.5rem;
}

.traj__item {
  position: relative;
  padding-left: 1.7rem;
}

/* trilha de cobre vertical */
.traj__item::before {
  content: "";
  position: absolute; left: 0; top: .5rem; bottom: -1.5rem;
  width: 1px;
  background: var(--line-copper);
}

.traj__item:last-child::before { bottom: auto; height: .5rem; }

/* nó de sinal em cada marco */
.traj__item::after {
  content: "";
  position: absolute; left: -3.5px; top: .42rem;
  width: 8px; height: 8px;
  background: var(--surface-2);
  border: 2px solid var(--accent);
  border-radius: 50%;
  box-shadow: 0 0 10px rgba(26, 227, 231, .45);
}

.traj__period {
  font: 600 .68rem/1 var(--font-mono);
  letter-spacing: .16em; text-transform: uppercase;
  color: var(--copper);
  margin: 0 0 .45rem;
}

.traj__item h4 {
  font: 600 1.02rem/1.3 var(--font-title);
  letter-spacing: -.01em;
  margin: 0 0 .3rem;
  color: var(--text);
}

.traj__item p:last-child {
  margin: 0;
  font-size: .92rem;
  color: var(--muted);
}

/* ---------- faixa drench ---------- */

.band--drench {
  padding-block: clamp(3rem, 7vw, 5rem);
  background:
    repeating-linear-gradient(90deg, transparent 0 46px, rgba(217, 142, 74, .06) 46px 47px),
    radial-gradient(70% 120% at 50% 0%, rgba(26, 227, 231, .12), transparent 70%),
    var(--surface-2);
  border-block: 1px solid var(--line-copper);
  text-align: center;
}

.band--drench p {
  font: 700 clamp(1.3rem, 3.4vw, 2.2rem)/1.2 var(--font-title);
  letter-spacing: -.02em;
  color: var(--text);
}

.band--drench span {
  color: var(--accent);
  transition: text-shadow .6s ease;
}

/* surge: o sinal chegou nesta camada */
.band--drench.is-surge { border-block-color: rgba(26, 227, 231, .45); }

.band--drench.is-surge span { text-shadow: 0 0 24px rgba(26, 227, 231, .65); }

body.surge #trace .trace-glow {
  filter: drop-shadow(0 0 10px rgba(26, 227, 231, .95));
}

body.surge #trace .trace-node.is-lit {
  animation: nodepulse .9s ease-in-out 2;
}

@keyframes nodepulse {
  0%, 100% {
    fill: var(--accent);
    stroke: var(--accent);
    filter: drop-shadow(0 0 6px rgba(26, 227, 231, .7));
  }
  50% {
    fill: var(--copper);
    stroke: var(--copper);
    filter: drop-shadow(0 0 16px rgba(217, 142, 74, .95));
  }
}

/* ---------- produtos: cases ---------- */

.cases {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 1.25rem;
  margin-top: 3rem;
}

.case {
  --case: var(--accent);
  position: relative;
  background: var(--surface);
  border: 1px solid var(--line);
  padding: 1.7rem 1.6rem 8rem;
  display: grid; gap: .9rem; align-content: start;
  grid-template-columns: minmax(0, 1fr);
  clip-path: polygon(0 0, calc(100% - var(--chamfer)) 0, 100% var(--chamfer), 100% 100%, 0 100%, 0 calc(100% - var(--chamfer)));
  transition: border-color .3s ease, transform .3s ease;
}

/* trilha de cobre no topo + pad de sinal */
.case::before {
  content: "";
  position: absolute; top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--copper-dim) 0 55%, var(--case) 55%);
}

.case::after {
  content: "";
  position: absolute; top: 1.45rem; right: 1.5rem;
  width: 9px; height: 9px; border-radius: 50%;
  background: var(--case);
  box-shadow: 0 0 14px color-mix(in srgb, var(--case) 65%, transparent);
}

.case:hover { border-color: color-mix(in srgb, var(--case) 45%, transparent); transform: translateY(-4px); }

.case--stream   { --case: var(--case-stream); grid-column: span 7; }
.case--sonar    { --case: var(--case-sonar); grid-column: span 5; }
.case--recanto  { --case: var(--case-recanto); grid-column: span 5; }
.case--arte     { --case: var(--case-arte); grid-column: span 7; }

.case__kicker {
  font: 500 .72rem/1 var(--font-mono);
  letter-spacing: .16em; text-transform: uppercase;
  color: var(--case);
}

.case h3 { font-size: clamp(1.3rem, 2.4vw, 1.7rem); }

.case__arc {
  list-style: none; margin: 0; padding: 0;
  display: grid; gap: .55rem;
}

.case__arc li {
  display: grid;
  grid-template-columns: 5.2rem 1fr;
  gap: .8rem;
  font-size: .94rem;
  color: var(--muted);
}

.case__arc b {
  font: 600 .68rem/1.5 var(--font-mono);
  letter-spacing: .14em; text-transform: uppercase;
  color: var(--dim);
}

.case .tag { justify-self: start; white-space: normal; }

/* chip-link: CI + trilha + mini LCD · canto inferior direito do card */
.chip-link {
  --pin: color-mix(in srgb, var(--case) 65%, transparent);
  position: absolute;
  right: 1.6rem;
  bottom: 1.6rem;
  display: grid;
  grid-template-columns: 1fr;
  grid-template-rows: auto 14px auto;
  justify-items: end;
  gap: 0;
  text-decoration: none;
}

/* mini LCD: anuncia o destino do CI */
.chip-link__lcd {
  font: 600 .62rem/1 var(--font-mono);
  letter-spacing: .18em; text-transform: uppercase;
  color: var(--case);
  background:
    repeating-linear-gradient(180deg, rgba(255, 255, 255, .035) 0 1px, transparent 1px 3px),
    var(--ink);
  border: 1px solid var(--pin);
  padding: .5rem .6rem;
  display: inline-flex; align-items: center; gap: .4rem;
  white-space: nowrap;
  transition: border-color .25s ease, box-shadow .25s ease;
}

.chip-link__lcd-cursor {
  width: .5em; height: .95em;
  background: var(--case);
  animation: blink 1.1s steps(1) infinite;
}

/* trilha vertical de cobre entre CI e LCD */
.chip-link__trace {
  width: 2px; height: 14px;
  background: linear-gradient(180deg, var(--pin), var(--case));
  opacity: .7;
  transition: opacity .25s ease;
}

/* o CI em si: notch de pino 1 + pinos laterais */
.chip-link__ic {
  position: relative;
  width: 42px; height: 42px;
  background:
    radial-gradient(circle at 11px 6px, var(--case) 0 1.6px, transparent 2.2px),
    var(--surface-2);
  border: 1px solid var(--pin);
  display: block;
  transition: transform .25s ease, border-color .25s ease, box-shadow .25s ease;
}

.chip-link__ic::before,
.chip-link__ic::after {
  content: "";
  position: absolute;
  top: 50%; margin-top: -2px;
  width: 6px; height: 4px;
  background: var(--pin);
  box-shadow: 0 -11px 0 0 var(--pin), 0 11px 0 0 var(--pin), 0 22px 0 0 var(--pin);
  transition: background .25s ease, box-shadow .25s ease;
}

.chip-link__ic::before { left: -7px; }
.chip-link__ic::after  { right: -7px; }

.chip-link:hover .chip-link__ic,
.chip-link:focus-visible .chip-link__ic {
  border-color: var(--case);
  box-shadow: 0 0 16px color-mix(in srgb, var(--case) 45%, transparent);
  transform: translateY(-2px);
  outline: none;
}

.chip-link:hover .chip-link__ic::before,
.chip-link:hover .chip-link__ic::after,
.chip-link:focus-visible .chip-link__ic::before,
.chip-link:focus-visible .chip-link__ic::after {
  background: var(--case);
  box-shadow: 0 -11px 0 0 var(--case), 0 11px 0 0 var(--case), 0 22px 0 0 var(--case);
}

.chip-link:hover .chip-link__lcd,
.chip-link:focus-visible .chip-link__lcd {
  border-color: var(--case);
  box-shadow: 0 0 12px color-mix(in srgb, var(--case) 30%, transparent);
}

.chip-link:hover .chip-link__trace,
.chip-link:focus-visible .chip-link__trace { opacity: 1; }

.chip-link__tip {
  position: absolute;
  left: 50%; bottom: calc(100% + 12px);
  transform: translateX(-50%) translateY(4px);
  font: 600 .6rem/1 var(--font-mono);
  letter-spacing: .14em; text-transform: uppercase;
  color: var(--case);
  background: var(--ink);
  border: 1px solid var(--line-copper);
  padding: .4rem .55rem;
  white-space: nowrap;
  display: none;
  pointer-events: none;
  clip-path: polygon(0 0, calc(100% - var(--chamfer-sm)) 0, 100% var(--chamfer-sm), 100% 100%, var(--chamfer-sm) 100%, 0 calc(100% - var(--chamfer-sm)));
}

.chip-link:hover .chip-link__tip,
.chip-link:focus-visible .chip-link__tip {
  display: block;
  opacity: 0;
  animation: tip-in .22s ease forwards;
}

@keyframes tip-in {
  from { opacity: 0; transform: translateX(-50%) translateY(4px); }
  to   { opacity: 1; transform: translateX(-50%) translateY(0); }
}

/* ---------- ia (coprocessamento) ---------- */

.split {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
  margin-top: 3rem;
}

.split .card { border-color: var(--line-copper); }
.split .card h3 { font-size: 1.1rem; }

/* ---------- quem (silkscreen) ---------- */

.who {
  max-width: 44rem;
  display: grid; gap: 1.2rem;
  margin-top: 2.2rem;
}

.who blockquote {
  margin: 0;
  padding-left: 1.2rem;
  border-left: 2px solid var(--copper);
  font: 600 clamp(1.15rem, 2.2vw, 1.5rem)/1.45 var(--font-title);
  letter-spacing: -.01em;
  color: var(--text);
}

.who__edu {
  list-style: none; margin: 0; padding: 0;
  display: grid; gap: .5rem;
  border: 1px solid var(--line-copper);
  background: var(--ink-soft);
  padding: 1.1rem 1.2rem;
  clip-path: polygon(0 0, calc(100% - var(--chamfer-sm)) 0, 100% var(--chamfer-sm), 100% 100%, var(--chamfer-sm) 100%, 0 calc(100% - var(--chamfer-sm)));
}

.who__edu li {
  display: grid;
  grid-template-columns: 7.5rem 1fr;
  gap: .9rem;
  align-items: baseline;
  font: 400 .9rem/1.5 var(--font-body);
  color: var(--muted);
}

.who__edu span {
  font: 600 .64rem/1.6 var(--font-mono);
  letter-spacing: .16em; text-transform: uppercase;
  color: var(--copper);
}

/* ---------- CTA final (conector) ---------- */

.cta-final { padding-bottom: clamp(5rem, 10vw, 8rem); }

.cta-panel {
  position: relative;
  background:
    repeating-linear-gradient(90deg, transparent 0 30px, rgba(217, 142, 74, .05) 30px 31px),
    linear-gradient(140deg, var(--surface-2), var(--ink-soft));
  border: 1px solid var(--line-copper);
  padding: clamp(2.5rem, 6vw, 4.5rem);
  display: grid; gap: 1.4rem;
  clip-path: polygon(0 0, calc(100% - var(--chamfer)) 0, 100% var(--chamfer), 100% 100%, var(--chamfer) 100%, 0 calc(100% - var(--chamfer)));
}

/* dedos do conector de borda */
.cta-panel::before {
  content: "";
  position: absolute; top: 0; left: 8%; right: 8%;
  height: 10px;
  background: repeating-linear-gradient(90deg, var(--copper-dim) 0 10px, transparent 10px 22px);
}

.cta-panel .lead { max-width: 34rem; }

.cta-panel__actions { display: flex; flex-wrap: wrap; gap: .8rem; }

.cta-panel__note {
  font: 500 .72rem/1.6 var(--font-mono);
  letter-spacing: .12em; text-transform: uppercase;
  color: var(--dim);
}

/* boot final: o circuito fecha no fim da página */
.boot--final {
  min-height: 0;
  border-color: var(--line-strong);
  background: linear-gradient(140deg, rgba(26, 227, 231, .07), var(--ink-soft) 55%);
}

/* cta-chip: co-processador do conector, responde ao prompt jober.os */
.cta-chip {
  --pin: color-mix(in srgb, var(--copper) 60%, transparent);
  position: absolute;
  top: 1.7rem;
  right: clamp(2.5rem, 6vw, 4.5rem);
  display: grid;
  grid-template-columns: auto 40px 84px;
  align-items: center;
  gap: 0;
  opacity: .6;
  cursor: pointer;
  transition: opacity .6s ease;
}

.cta-chip.is-live { opacity: 1; }

.cta-chip:active { transform: translateY(1px); }

/* LCD de duas linhas: barra de status + prompt do sistema */
.cta-chip__lcd {
  display: grid; gap: .55rem;
  font-family: var(--font-mono);
  background:
    repeating-linear-gradient(180deg, rgba(255, 255, 255, .035) 0 1px, transparent 1px 3px),
    var(--ink);
  border: 1px solid var(--pin);
  padding: .75rem .85rem;
  width: 300px;
  opacity: .45;
  transition: opacity .7s ease, border-color .7s ease, box-shadow .7s ease;
}

.cta-chip.is-live .cta-chip__lcd {
  opacity: 1;
  border-color: color-mix(in srgb, var(--accent) 55%, var(--copper));
  box-shadow: 0 0 22px rgba(26, 227, 231, .22);
}

.cta-chip__bar {
  display: flex; align-items: center; gap: .6rem;
  font: 600 .6rem/1 var(--font-mono);
  letter-spacing: .22em; text-transform: uppercase;
  color: var(--dim);
  border-bottom: 1px solid var(--line);
  padding-bottom: .55rem;
}

.cta-chip__leds {
  margin-left: auto;
  display: flex; gap: .35rem;
}

.cta-chip__leds i {
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--surface-2);
  border: 1px solid var(--line-copper);
}

.cta-chip.is-live .cta-chip__leds i:nth-child(1) { animation: ledblink 2.4s ease-in-out infinite; }
.cta-chip.is-live .cta-chip__leds i:nth-child(2) { animation: ledblink 2.4s ease-in-out .8s infinite; }
.cta-chip.is-live .cta-chip__leds i:nth-child(3) { animation: ledblink 2.4s ease-in-out 1.6s infinite; }

@keyframes ledblink {
  0%, 100% { background: var(--surface-2); box-shadow: none; }
  15%, 45% { background: var(--copper); box-shadow: 0 0 8px var(--copper-soft); }
}

.cta-chip__line {
  display: flex; align-items: center; gap: .5rem;
  font: 600 .74rem/1.4 var(--font-mono);
  letter-spacing: .13em; text-transform: uppercase;
  color: var(--accent);
  min-height: 1.1rem;
  white-space: nowrap;
}

.cta-chip__prompt { color: var(--copper); }

.cta-chip__text { display: inline-block; }

.cta-chip__cursor {
  width: .55em; height: 1em;
  background: var(--accent);
  opacity: 0;
  flex: none;
}

.cta-chip.is-live .cta-chip__cursor {
  opacity: 1;
  animation: blink 1.1s steps(1) infinite;
}

/* trilha com pulso de sinal viajando */
.cta-chip__trace {
  height: 2px;
  background: linear-gradient(90deg, var(--pin) 0 40%, var(--copper) 40% 60%, var(--pin) 60% 100%);
  background-size: 220% 100%;
  background-position: 100% 0;
  opacity: .4;
  transition: opacity .7s ease;
}

.cta-chip.is-live .cta-chip__trace {
  opacity: 1;
  animation: traceflow 1.4s linear infinite;
}

@keyframes traceflow { to { background-position: -120% 0; } }

/* CI maior: núcleo com vias e trilhas internas, 12 pinos, 3 LEDs de status */
.cta-chip__ic {
  position: relative;
  width: 84px; height: 84px;
  background:
    radial-gradient(circle at 50% 50%, rgba(217, 142, 74, .14) 0 18%, transparent 19%),
    radial-gradient(circle at 22% 22%, var(--copper-dim) 0 2px, transparent 2.6px),
    radial-gradient(circle at 78% 22%, var(--copper-dim) 0 2px, transparent 2.6px),
    radial-gradient(circle at 22% 78%, var(--copper-dim) 0 2px, transparent 2.6px),
    radial-gradient(circle at 78% 78%, var(--copper-dim) 0 2px, transparent 2.6px),
    linear-gradient(45deg, transparent 45%, rgba(217, 142, 74, .16) 46%, rgba(217, 142, 74, .16) 54%, transparent 55%),
    linear-gradient(-45deg, transparent 45%, rgba(217, 142, 74, .16) 46%, rgba(217, 142, 74, .16) 54%, transparent 55%),
    var(--surface-2);
  border: 1px solid var(--pin);
  display: block;
  transition: border-color .7s ease, box-shadow .7s ease;
}

.cta-chip__ic::before,
.cta-chip__ic::after {
  content: "";
  position: absolute;
  top: 50%; margin-top: -2px;
  width: 8px; height: 4px;
  background: var(--pin);
  box-shadow: 0 -21px 0 0 var(--pin), 0 -12px 0 0 var(--pin), 0 -3px 0 0 var(--pin), 0 6px 0 0 var(--pin), 0 15px 0 0 var(--pin), 0 24px 0 0 var(--pin);
  transition: background .7s ease, box-shadow .7s ease;
}

.cta-chip__ic::before { left: -9px; }
.cta-chip__ic::after  { right: -9px; }

.cta-chip__led {
  position: absolute; top: 10px;
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--surface-2);
  border: 1px solid var(--line-copper);
}

.cta-chip__led--a { left: 15px; }
.cta-chip__led--b { left: 27px; }
.cta-chip__led--c { left: 39px; }

.cta-chip.is-live .cta-chip__led--a { animation: ledblink 2.4s ease-in-out infinite; }
.cta-chip.is-live .cta-chip__led--b { animation: ledblink 2.4s ease-in-out .8s infinite; }
.cta-chip.is-live .cta-chip__led--c { animation: ledblink 2.4s ease-in-out 1.6s infinite; }

.cta-chip.is-live .cta-chip__ic {
  border-color: var(--copper);
  box-shadow: 0 0 24px rgba(217, 142, 74, .32);
}

.cta-chip.is-live .cta-chip__ic::before,
.cta-chip.is-live .cta-chip__ic::after {
  background: var(--copper);
  box-shadow: 0 -21px 0 0 var(--copper), 0 -12px 0 0 var(--copper), 0 -3px 0 0 var(--copper), 0 6px 0 0 var(--copper), 0 15px 0 0 var(--copper), 0 24px 0 0 var(--copper);
}

/* ---------- toast ---------- */

.toast {
  position: fixed; left: 50%; bottom: 1.4rem; translate: -50% 0;
  z-index: 90;
  max-width: min(92vw, 26rem);
  background: var(--surface-2);
  border: 1px solid var(--line-strong);
  padding: .8rem 1.1rem;
  font: 600 .85rem/1.5 var(--font-body);
  color: var(--text);
  opacity: 0; pointer-events: none;
  transition: opacity .3s ease, translate .3s ease;
}

.toast.is-on { opacity: 1; translate: -50% -6px; }

/* ---------- footer ---------- */

.footer {
  border-top: 1px solid var(--line-copper);
  padding: 2.2rem 0 2.6rem;
  position: relative; z-index: 1;
}

.footer__inner {
  display: flex; flex-wrap: wrap; gap: 1rem;
  align-items: center; justify-content: space-between;
}

.footer p { font: 500 .74rem/1.7 var(--font-mono); letter-spacing: .1em; color: var(--dim); }

@media (max-width: 1080px) {
  .footer__inner { justify-content: center; text-align: center; gap: .5rem 1.2rem; }
  .footer p { font-size: .64rem; letter-spacing: .06em; }
}

/* ---------- reveal (só com JS) ---------- */

html.js [data-reveal] {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity .7s ease, transform .7s ease;
  transition-delay: var(--reveal-delay, 0ms);
}

html.js [data-reveal].is-visible { opacity: 1; transform: none; }

/* ---------- to-top ---------- */

.to-top {
  position: fixed; right: 1.2rem; bottom: 1.2rem; z-index: 45;
  width: 44px; height: 44px;
  background: var(--surface);
  border: 1px solid var(--line-copper);
  color: var(--accent);
  font: 700 1rem/1 var(--font-mono);
  cursor: pointer;
  clip-path: polygon(0 0, calc(100% - 8px) 0, 100% 8px, 100% 100%, 0 100%);
}

.to-top:hover { border-color: var(--accent); }

/* ---------- reduced motion ---------- */

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
    scroll-behavior: auto !important;
  }
  html.js [data-reveal] { opacity: 1 !important; transform: none !important; }
  .board-canvas { display: none; }
  #trace .trace-glow, #trace .trace-head, #trace .trace-pulse { display: none; }
  body.surge #trace .trace-node.is-lit { animation: none; }
  #trace .trace-path { opacity: .35; stroke-dasharray: none !important; stroke-dashoffset: 0 !important; }
}

/* ---------- performance mobile ---------- */

@media (max-width: 900px) {
  .nav { backdrop-filter: none; -webkit-backdrop-filter: none; }
  .ghost { font-size: clamp(3rem, 18vw, 5rem); }

  .nav-toggle { display: inline-flex; }

  .nav-links {
    position: absolute; top: 100%; inset-inline: 0;
    flex-direction: column; align-items: flex-start;
    gap: 0;
    background: var(--ink-soft);
    border-bottom: 1px solid var(--line-copper);
    padding: .6rem 1.25rem 1rem;
    display: none;
  }

  .nav-links.is-open { display: flex; }

  html.no-js .nav-links {
    display: flex;
    position: static;
    border-bottom: 0;
    padding: 0;
  }

  .nav-links a { padding: .8rem 0; width: 100%; }

  .nav-links a.btn { padding: .8rem 1.2rem; width: auto; }

  .hero__grid { grid-template-columns: 1fr; }

  .boot { min-height: 0; }

  .chips { grid-template-columns: 1fr 1fr; }

  .found-grid .card--wide,
  .found-grid .card--mid,
  .cases .case { grid-column: 1 / -1; }

  .split { grid-template-columns: 1fr; }

  .card--full { grid-template-columns: 1fr; }

  .card--extrapola { display: block; }
  .card--extrapola .extrapola__seal {
    float: right;
    margin: 0 0 .8rem 1rem;
  }

  .cta-chip {
    position: static;
    justify-self: end;
    margin-top: 1rem;
    grid-template-columns: minmax(0, 1fr);
    grid-template-rows: auto 14px auto;
    justify-items: end;
  }

  .cta-chip__trace {
    width: 2px; height: 14px;
    background: linear-gradient(180deg, var(--pin) 0 40%, var(--copper) 40% 60%, var(--pin) 60% 100%);
    background-size: 100% 220%;
    background-position: 0 100%;
  }

  .cta-chip__lcd { width: 270px; }
  .cta-chip__line { white-space: normal; }
}

@media (max-width: 480px) {
  .chips { grid-template-columns: 1fr; }
  .card, .case { padding: 1.3rem 1.15rem; }
  .cases .case { padding-bottom: 8rem; }
  .case__arc li { grid-template-columns: 1fr; gap: .15rem; }
  .cta-panel { padding: 2rem 1.4rem; }
}

/* ---------- terminal interativo jober.os (boot final, nó 06) ---------- */
.boot--final { position: relative; }
.boot--final:focus-within {
  border-color: var(--accent);
  box-shadow: 0 0 18px rgba(26, 227, 231, .14);
}
.term-hint { color: var(--dim); }
.term-line { display: block; white-space: pre-wrap; }
.term-prompt { color: var(--copper); }
.term-typed { color: var(--accent); }
.term-echo { color: var(--muted); }
.term-echo--crash { color: var(--accent); }
.term-field {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  opacity: 0; border: 0; margin: 0; padding: 0;
  font: inherit; color: transparent; caret-color: transparent;
  background: transparent; outline: none;
}

/* ---------- glitch de tela · resposta ao terminal jober.os ---------- */
#glitch-overlay {
  position: fixed; inset: 0; z-index: 9990; pointer-events: none;
  opacity: 0; mix-blend-mode: screen;
  animation: glitch-fade .85s steps(6) both;
}
#glitch-overlay::before,
#glitch-overlay::after {
  content: ""; position: absolute; inset: 0;
  animation: glitch-slice .85s steps(1) both;
}
#glitch-overlay::before { background: rgba(26, 227, 231, .16); }
#glitch-overlay::after  { background: rgba(255, 61, 113, .14); }
#glitch-overlay.is-static { opacity: .16; animation: none; }

body.is-glitching {
  animation: screen-tilt .85s linear both,
             screen-distort .85s linear both;
}

@keyframes screen-tilt {
  0%   { transform: none; }
  10%  { transform: rotate(-1.5deg) translateX(-6px); }
  20%  { transform: rotate(1.2deg) skewX(-2.5deg); }
  30%  { transform: rotate(-1deg) translateY(4px); }
  40%  { transform: rotate(1.8deg) translateX(7px); }
  50%  { transform: rotate(-1.4deg) skewX(2deg); }
  60%  { transform: rotate(.9deg) translateY(-5px); }
  70%  { transform: rotate(-.7deg) translateX(5px); }
  80%  { transform: rotate(.4deg); }
  90%  { transform: rotate(-.3deg); }
  100% { transform: none; }
}
@keyframes screen-distort {
  0%, 100% { filter: none; }
  15% { filter: saturate(2) contrast(1.25) hue-rotate(-12deg); }
  45% { filter: saturate(1.4) contrast(1.1) hue-rotate(8deg); }
  70% { filter: saturate(2.4) contrast(1.35) hue-rotate(-20deg); }
}
@keyframes glitch-fade {
  0%   { opacity: 0; }
  8%   { opacity: .55; }
  20%  { opacity: .25; }
  35%  { opacity: .6; }
  55%  { opacity: .15; }
  75%  { opacity: .5; }
  100% { opacity: 0; }
}
@keyframes glitch-slice {
  0%   { clip-path: inset(0 0 82% 0); transform: translateX(-14px); }
  12%  { clip-path: inset(58% 0 8% 0); transform: translateX(10px); }
  25%  { clip-path: inset(28% 0 52% 0); transform: translateX(-8px); }
  40%  { clip-path: inset(72% 0 6% 0); transform: translateX(12px); }
  55%  { clip-path: inset(12% 0 74% 0); transform: translateX(-12px); }
  70%  { clip-path: inset(44% 0 34% 0); transform: translateX(9px); }
  85%  { clip-path: inset(80% 0 2% 0); transform: translateX(-6px); }
  100% { clip-path: inset(0 0 100% 0); transform: none; }
}