/* ═══════════════════════════════════════════════════════════════════════════
 * arke-home.css — a Home do archēLAB falando a língua visual do SISTEMA.
 *
 * REGRA (CET, §20 do briefing): não existe um segundo design system. Tudo aqui
 * consome os tokens de `css/arke-tokens.css` — a MESMA fonte que o arkēCORE usa
 * (--accent, --surface, --border, --text-muted…). Site e software são duas
 * densidades da mesma identidade: aqui mais editorial, lá mais funcional.
 *
 * Os blocos `.ark-card` / `.ark-badge` reproduzem fielmente a gramática de
 * `components/ui/card.tsx` (surface + hairline 1px + radius 4px + shadow) e
 * `components/ui/badge.tsx` (pill 11px semibold, soft bg + ring). Quando a Home
 * mostra "um card do sistema", é esse card — não um desenho dele.
 *
 * Carregado SÓ pela Home (index.html). Nenhuma outra página é afetada.
 * ═══════════════════════════════════════════════════════════════════════════ */

/* ── Escala editorial própria da Home (o site respira mais que o app) ────── */
.ark-sec {
  --ark-gut: clamp(24px, 4vw, 64px);
  position: relative;
  padding-block: clamp(90px, 11vw, 170px);
}
.ark-sec--tight { padding-block: clamp(70px, 8vw, 120px); }
.ark-sec--surface { background: #101010; }
.ark-sec--deep { background: #0A0A0A; }

/* Fio de cabelo dourado que abre seção — ritmo editorial, não decoração */
.ark-sec--rule::before {
  content: "";
  position: absolute; inset-inline: 0; top: 0; height: 1px;
  background: linear-gradient(90deg, transparent, rgba(var(--accent-rgb),.34) 22%, rgba(var(--accent-rgb),.34) 78%, transparent);
}

.ark-eyebrow {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--font-mono, 'Consolas', monospace);
  font-size: 12px; font-weight: 600; letter-spacing: .16em; text-transform: uppercase;
  color: var(--accent, #C4973A);
  margin-bottom: 22px;
}
.ark-eyebrow::before {
  content: ""; width: 26px; height: 1px; background: currentColor; opacity: .55;
}

.ark-lead {
  color: #C9C4BC; font-size: clamp(16px, 1.25vw, 19px); line-height: 1.72;
  max-width: 62ch; margin: 0;
}
.ark-lead + .ark-lead { margin-top: 20px; }
.ark-lead strong { color: #F5F2ED; font-weight: 600; }

/* Reveal próprio — IntersectionObserver. Sem JS o conteúdo já nasce visível
   (o estado inicial só é aplicado quando o observer assume: .ark-jsready). */
.ark-jsready .ark-rv { opacity: 0; transform: translateY(26px); }
.ark-jsready .ark-rv.is-in {
  opacity: 1; transform: none;
  transition: opacity .85s cubic-bezier(.16,1,.3,1), transform .85s cubic-bezier(.16,1,.3,1);
  transition-delay: var(--d, 0s);
}

/* ═══════════════════════════════════════════════════════════════════════════
   COMPONENTES REAIS DO SISTEMA (espelho fiel do UI Kit do arkēCORE)
   ═══════════════════════════════════════════════════════════════════════════ */

.ark-card {
  background: var(--surface, #141414);
  border: 1px solid var(--border, #2A2A2A);
  border-radius: 4px;                      /* radius do Card default do sistema */
  box-shadow: var(--shadow, 0 4px 18px rgba(0,0,0,.55));
  padding: 18px;
  text-align: left;
}
.ark-card--accent {
  background: linear-gradient(135deg, rgba(var(--accent-rgb),.15) 0%, rgba(var(--accent-rgb),.05) 100%);
  border-color: rgba(var(--accent-rgb),.30);
}
.ark-card__top { display: flex; align-items: center; gap: 11px; margin-bottom: 14px; }
.ark-card__ico {
  width: 34px; height: 34px; flex: 0 0 auto;
  display: grid; place-items: center;
  border-radius: 4px;
  background: rgba(var(--accent-rgb),.10);
  border: 1px solid rgba(var(--accent-rgb),.24);
  color: var(--accent, #C4973A);
}
.ark-card__ico svg { width: 17px; height: 17px; }
.ark-card__t { font-size: 14.5px; font-weight: 650; color: #F5F2ED; line-height: 1.25; margin: 0; }
.ark-card__s {
  display: block; margin-top: 3px;
  font-family: var(--font-mono, monospace); font-size: 10.5px; letter-spacing: .10em;
  text-transform: uppercase; color: #6B6560;
}
.ark-card__body { font-size: 13px; line-height: 1.6; color: #9A9590; margin: 0; }

/* Linha campo→valor: como o sistema mostra metadados de entidade */
.ark-kv { display: grid; gap: 7px; margin: 0; padding: 0; list-style: none; }
.ark-kv li {
  display: flex; align-items: center; justify-content: space-between; gap: 14px;
  font-size: 12px; padding-bottom: 7px;
  border-bottom: 1px solid rgba(245,242,237,.055);
}
.ark-kv li:last-child { border-bottom: 0; padding-bottom: 0; }
.ark-kv b {
  font-family: var(--font-mono, monospace); font-weight: 500;
  font-size: 10.5px; letter-spacing: .07em; text-transform: uppercase; color: #6B6560;
}
.ark-kv span { color: #C9C4BC; font-weight: 500; text-align: right; }

/* Relação (o "corpo caloso" do grafo) */
.ark-rel { display: grid; gap: 8px; margin: 0; padding: 0; list-style: none; }
.ark-rel li {
  display: flex; align-items: center; gap: 9px;
  font-size: 12px; color: #C9C4BC;
}
.ark-rel li::before {
  content: ""; width: 14px; height: 1px; flex: 0 0 auto;
  background: rgba(var(--accent-rgb),.55);
}

/* Badge — pill do sistema (11px semibold, soft bg + ring) */
.ark-badge {
  display: inline-flex; align-items: center; gap: 5px; width: fit-content;
  padding: 3px 10px; border-radius: 999px;
  font-size: 11px; font-weight: 600; line-height: 1.2; white-space: nowrap;
  color: var(--text-muted, #9A9590);
  background: var(--surface2, #1E1E1E);
  border: 1px solid var(--border, #2A2A2A);
}
.ark-badge--accent {
  color: var(--accent, #C4973A);
  background: rgba(var(--accent-rgb),.16);
  border-color: rgba(var(--accent-rgb),.32);
}
.ark-badge--ok {
  color: #4A7C59; background: rgba(74,124,89,.16); border-color: rgba(74,124,89,.28);
}
.ark-badge--info {
  color: #5B7B8A; background: rgba(91,123,138,.16); border-color: rgba(91,123,138,.28);
}
.ark-badge__dot { width: 5px; height: 5px; border-radius: 50%; background: currentColor; }
.ark-badges { display: flex; flex-wrap: wrap; gap: 6px; }

/* ═══════════════════════════════════════════════════════════════════════════
   §4 · A ORIGEM — o sistema organizando o caos, em cena
   ═══════════════════════════════════════════════════════════════════════════ */

.ark-caos {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: clamp(18px, 3vw, 48px);
  align-items: center;
  margin-top: clamp(48px, 6vw, 88px);
}

.ark-caos__side { position: relative; min-height: 330px; }

/* ESQUERDA — as partes soltas. Ficam tortas, cinzas, sem relação.
   inset:0 (e não height:100%): a altura do lado vem de min-height, e a
   porcentagem não resolve contra ela — os chips desabavam numa faixa de 0px. */
.ark-caos__loose { position: absolute; inset: 0; }
.ark-caos__chip {
  position: absolute;
  display: inline-flex; align-items: center; gap: 7px;
  padding: 8px 13px; border-radius: 4px;
  background: rgba(245,242,237,.03);
  border: 1px solid rgba(245,242,237,.10);
  color: #7C7770; font-size: 12px; font-weight: 500; white-space: nowrap;
  animation: arkDrift 9s ease-in-out infinite;
}
.ark-caos__chip svg { width: 13px; height: 13px; opacity: .7; }
@keyframes arkDrift {
  0%,100% { transform: translate(0,0) rotate(var(--rot,0deg)); }
  50%     { transform: translate(var(--dx,4px), var(--dy,-6px)) rotate(var(--rot,0deg)); }
}

/* CENTRO — o símbolo. Núcleo que puxa. */
.ark-caos__core { display: grid; place-items: center; gap: 16px; }
.ark-mark { display: block; color: var(--accent, #C4973A); }
.ark-mark--glow { filter: drop-shadow(0 0 26px rgba(var(--accent-rgb),.42)); }
.ark-caos__corelabel {
  font-family: var(--font-mono, monospace); font-size: 11px; letter-spacing: .22em;
  text-transform: uppercase; color: #6B6560; text-align: center;
}

/* DIREITA — as mesmas partes, agora entidades em relação. */
.ark-caos__ordered { display: grid; gap: 10px; }
.ark-caos__ent {
  display: flex; align-items: center; gap: 11px;
  padding: 11px 14px; border-radius: 4px;
  background: var(--surface, #141414);
  border: 1px solid var(--border, #2A2A2A);
  border-left: 2px solid rgba(var(--accent-rgb),.55);
}
.ark-caos__ent b { font-size: 13px; font-weight: 600; color: #F5F2ED; }
.ark-caos__ent span {
  font-family: var(--font-mono, monospace); font-size: 10px; letter-spacing: .1em;
  text-transform: uppercase; color: #6B6560; margin-left: auto;
}

/* Processo: COMPREENDER → ESTRUTURAR → … */
.ark-flowline {
  display: flex; flex-wrap: wrap; align-items: center; gap: 14px;
  margin-top: clamp(44px, 5vw, 74px);
  padding-top: 30px;
  border-top: 1px solid rgba(245,242,237,.08);
}
.ark-flowline span {
  font-family: var(--font-mono, monospace);
  font-size: clamp(11px, 1vw, 13px); font-weight: 600; letter-spacing: .17em;
  text-transform: uppercase; color: #C9C4BC;
}
.ark-flowline i {
  color: var(--accent, #C4973A); font-style: normal; opacity: .8;
}

/* ═══════════════════════════════════════════════════════════════════════════
   §5 · O QUE FAZEMOS — linhas editoriais com preview real no hover
   ═══════════════════════════════════════════════════════════════════════════ */

.ark-lines { margin-top: clamp(44px, 5vw, 76px); border-top: 1px solid rgba(245,242,237,.10); }

.ark-line {
  position: relative;
  display: grid;
  grid-template-columns: 84px minmax(0,1fr) minmax(0,1.05fr) 56px;
  align-items: center; gap: clamp(16px, 2.4vw, 40px);
  padding: clamp(26px, 3vw, 40px) 0;
  border-bottom: 1px solid rgba(245,242,237,.10);
  transition: background .45s ease;
}
.ark-line:hover { background: rgba(var(--accent-rgb),.035); }
.ark-line__n {
  font-family: var(--font-mono, monospace); font-size: 13px; letter-spacing: .1em;
  color: #6B6560; transition: color .4s ease;
}
.ark-line:hover .ark-line__n { color: var(--accent, #C4973A); }
.ark-line__t {
  margin: 0; font-size: clamp(26px, 3.4vw, 46px); font-weight: 700;
  letter-spacing: -.02em; line-height: 1.04; color: #F5F2ED;
  transition: transform .5s cubic-bezier(.16,1,.3,1);
}
.ark-line:hover .ark-line__t { transform: translateX(9px); }
.ark-line__tags { display: flex; flex-wrap: wrap; gap: 7px; }
.ark-line__tag {
  padding: 4px 11px; border-radius: 999px;
  font-size: 11.5px; font-weight: 500; color: #8B8680;
  border: 1px solid rgba(245,242,237,.13);
  transition: color .35s ease, border-color .35s ease, background .35s ease;
  cursor: default;
}
.ark-line:hover .ark-line__tag { color: #C9C4BC; border-color: rgba(var(--accent-rgb),.30); }
.ark-line__tag:hover,
.ark-line__tag.is-hot {
  color: var(--accent, #C4973A) !important;
  border-color: rgba(var(--accent-rgb),.55) !important;
  background: rgba(var(--accent-rgb),.10);
}
.ark-line__go {
  width: 52px; height: 52px; border-radius: 50%; justify-self: end;
  display: grid; place-items: center;
  border: 1px solid rgba(245,242,237,.18); color: #C9C4BC;
  transition: background .4s ease, color .4s ease, border-color .4s ease, transform .4s ease;
}
.ark-line:hover .ark-line__go {
  background: var(--accent, #C4973A); border-color: var(--accent, #C4973A);
  color: #0A0A0A; transform: rotate(45deg);
}

/* Preview real que nasce da tag — o card do sistema, ancorado */
.ark-peek {
  position: absolute; z-index: 20; width: 268px;
  left: var(--px, 50%); top: var(--py, 100%);
  transform: translate(-50%, 10px) scale(.97);
  opacity: 0; visibility: hidden; pointer-events: none;
  transition: opacity .3s ease, transform .35s cubic-bezier(.16,1,.3,1), visibility .3s;
}
.ark-peek.is-on { opacity: 1; visibility: visible; transform: translate(-50%, 0) scale(1); }

/* ═══════════════════════════════════════════════════════════════════════════
   §6 · COMO FAZEMOS — as 6 etapas, cada uma com sua peça real
   ═══════════════════════════════════════════════════════════════════════════ */

.ark-steps {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 1px; margin-top: clamp(44px, 5vw, 76px);
  background: rgba(245,242,237,.09);
  border: 1px solid rgba(245,242,237,.09);
}
.ark-step {
  position: relative; background: #0C0C0C;
  padding: clamp(26px, 2.6vw, 38px);
  transition: background .45s ease;
}
.ark-step:hover { background: #131313; }
.ark-step__n {
  font-family: var(--font-mono, monospace); font-size: 12px; letter-spacing: .12em;
  color: var(--accent, #C4973A); display: block; margin-bottom: 16px;
}
.ark-step__t {
  margin: 0 0 10px; font-size: clamp(19px, 1.7vw, 24px); font-weight: 700;
  letter-spacing: -.01em; color: #F5F2ED;
}
.ark-step__cap {
  margin: 0 0 22px; font-size: 12.5px; line-height: 1.6; color: #8B8680;
}
.ark-step__tags { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 24px; }
.ark-step__tags span {
  font-size: 11px; color: #7C7770; padding: 3px 9px; border-radius: 999px;
  border: 1px solid rgba(245,242,237,.11);
}
.ark-step .ark-card { transform: scale(.965); transform-origin: left top; transition: transform .5s cubic-bezier(.16,1,.3,1); }
.ark-step:hover .ark-card { transform: scale(1); }

/* Frase de impacto */
.ark-shout {
  margin-top: clamp(56px, 6vw, 100px);
  text-align: center;
  font-size: clamp(30px, 5.2vw, 74px); font-weight: 800;
  letter-spacing: -.03em; line-height: .98; color: #F5F2ED;
}
.ark-shout i { font-style: italic; font-weight: 400; color: var(--accent, #C4973A); font-family: 'Playfair Display', Georgia, serif; }

/* ═══════════════════════════════════════════════════════════════════════════
   §7 · O SISTEMA REAL — a tela do produto, sem mockup de notebook
   ═══════════════════════════════════════════════════════════════════════════ */

.ark-inside { display: grid; grid-template-columns: 1fr 1.25fr; gap: clamp(30px, 4vw, 76px); align-items: start; margin-top: clamp(40px, 5vw, 70px); }

.ark-inside__list { display: grid; gap: 2px; }
.ark-inside__item {
  display: grid; grid-template-columns: auto 1fr; gap: 16px; align-items: baseline;
  width: 100%; text-align: left; background: none; border: 0;
  padding: 19px 18px; border-radius: 4px;
  color: inherit; cursor: pointer;
  transition: background .35s ease;
}
.ark-inside__item:hover { background: rgba(245,242,237,.035); }
.ark-inside__item.is-on { background: rgba(var(--accent-rgb),.08); }
.ark-inside__k {
  font-family: var(--font-mono, monospace); font-size: 11px; letter-spacing: .14em;
  text-transform: uppercase; font-weight: 600; color: #6B6560;
  transition: color .35s ease;
}
.ark-inside__item.is-on .ark-inside__k,
.ark-inside__item:hover .ark-inside__k { color: var(--accent, #C4973A); }
.ark-inside__d { margin: 0; font-size: 14.5px; line-height: 1.55; color: #9A9590; }
.ark-inside__item.is-on .ark-inside__d { color: #F5F2ED; }

/* Painel: a janela real do sistema, levemente cortada — não é um retrato posado */
.ark-window {
  position: relative; border-radius: 6px; overflow: hidden;
  border: 1px solid var(--border, #2A2A2A);
  background: var(--surface, #141414);
  box-shadow: 0 40px 90px rgba(0,0,0,.6);
}
.ark-window__bar {
  display: flex; align-items: center; gap: 8px;
  padding: 11px 14px; border-bottom: 1px solid var(--border, #2A2A2A);
  background: #101010;
}
.ark-window__dot { width: 8px; height: 8px; border-radius: 50%; background: #2A2A2A; }
.ark-window__path {
  margin-left: 8px; font-family: var(--font-mono, monospace);
  font-size: 11px; color: #6B6560; letter-spacing: .04em;
}
.ark-window__shot { display: block; width: 100%; height: auto; }
.ark-window__over {
  position: absolute; right: 18px; bottom: 18px; width: min(258px, 62%);
  animation: arkFloat 7s ease-in-out infinite;
}
@keyframes arkFloat { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-9px); } }

/* ═══════════════════════════════════════════════════════════════════════════
   §8–13 · archē — a constelação. O coração da página.
   ═══════════════════════════════════════════════════════════════════════════ */

.ark-arche { position: relative; overflow: hidden; }
.ark-arche::after {                       /* halo do núcleo, dourado em baixa intensidade */
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background: radial-gradient(58% 62% at 50% 52%, rgba(var(--accent-rgb),.08), transparent 70%);
}
.ark-arche > .container { position: relative; z-index: 2; }

.ark-arche__wordmark {
  font-family: 'Playfair Display', Georgia, serif;
  font-size: clamp(58px, 11vw, 168px); line-height: .9; font-weight: 500;
  letter-spacing: -.03em; color: #F5F2ED; margin: 0 0 18px;
}
.ark-arche__wordmark em { font-style: italic; color: var(--accent, #C4973A); }

/* Palco do diagrama */
.ark-const {
  position: relative;
  aspect-ratio: 16 / 10.5;
  margin-top: clamp(40px, 5vw, 80px);
}
.ark-const__svg { position: absolute; inset: 0; width: 100%; height: 100%; overflow: visible; }
.ark-const__link {
  stroke: rgba(var(--accent-rgb),.26);
  stroke-width: 1; fill: none;
  transition: stroke .45s ease, stroke-width .45s ease;
}
.ark-const__link--side { stroke: rgba(245,242,237,.10); stroke-dasharray: 3 5; }
.ark-const.is-focus .ark-const__link { stroke: rgba(var(--accent-rgb),.07); }
.ark-const.is-focus .ark-const__link--side { stroke: rgba(245,242,237,.045); }
.ark-const .ark-const__link.is-lit {
  stroke: rgba(var(--accent-rgb),.92); stroke-width: 1.6;
}
.ark-const .ark-const__link--side.is-lit { stroke: rgba(var(--accent-rgb),.55); stroke-dasharray: none; }

/* Núcleo */
.ark-const__core {
  position: absolute; left: 50%; top: 50%; transform: translate(-50%,-50%);
  display: grid; place-items: center; gap: 10px; z-index: 3; text-align: center;
}
.ark-const__core .ark-mark { width: clamp(74px, 8vw, 116px); height: auto; }
.ark-const__corename {
  font-family: 'Playfair Display', Georgia, serif; font-size: clamp(20px, 2vw, 30px);
  color: #F5F2ED; letter-spacing: .02em;
}
.ark-const__coretag {
  font-family: var(--font-mono, monospace); font-size: 10px; letter-spacing: .2em;
  text-transform: uppercase; color: #6B6560;
}

/* Nós */
.ark-node {
  position: absolute; z-index: 4;
  left: var(--x); top: var(--y); transform: translate(-50%,-50%);
  display: inline-flex; align-items: center; gap: 9px;
  padding: 10px 16px 10px 12px; border-radius: 999px;
  background: rgba(16,16,16,.90);
  border: 1px solid var(--border, #2A2A2A);
  -webkit-backdrop-filter: blur(9px); backdrop-filter: blur(9px);
  color: #C9C4BC; font-size: 13.5px; font-weight: 600; letter-spacing: -.01em;
  cursor: pointer; white-space: nowrap;
  transition: opacity .4s ease, border-color .4s ease, color .4s ease, transform .45s cubic-bezier(.16,1,.3,1), background .4s ease;
}
.ark-node__dot {
  width: 7px; height: 7px; border-radius: 50%; flex: 0 0 auto;
  background: var(--accent, #C4973A); opacity: .55;
  transition: opacity .4s ease, box-shadow .4s ease;
}
.ark-node:hover, .ark-node.is-on {
  color: #F5F2ED; border-color: rgba(var(--accent-rgb),.6);
  background: rgba(22,20,16,.95);
  transform: translate(-50%,-50%) scale(1.045);
}
.ark-node:hover .ark-node__dot, .ark-node.is-on .ark-node__dot {
  opacity: 1; box-shadow: 0 0 0 5px rgba(var(--accent-rgb),.16);
}
.ark-const.is-focus .ark-node { opacity: .34; }
.ark-const.is-focus .ark-node.is-on,
.ark-const.is-focus .ark-node.is-kin { opacity: 1; }
.ark-const.is-focus .ark-node.is-kin { border-color: rgba(var(--accent-rgb),.32); }

/* Card que abre no hover do nó — card REAL do sistema */
.ark-node-card {
  position: absolute; z-index: 9; width: min(330px, 78vw);
  left: var(--cx, 50%); top: var(--cy, 50%);
  transform: translate(-50%, 8px) scale(.97);
  opacity: 0; visibility: hidden; pointer-events: none;
  transition: opacity .32s ease, transform .4s cubic-bezier(.16,1,.3,1), visibility .32s;
}
.ark-node-card.is-on { opacity: 1; visibility: visible; transform: translate(-50%, 0) scale(1); }
.ark-node-card .ark-card { box-shadow: 0 34px 74px rgba(0,0,0,.72); }
.ark-node-card__fn {
  font-family: var(--font-mono, monospace); font-size: 10.5px; letter-spacing: .12em;
  text-transform: uppercase; color: var(--accent, #C4973A); margin-bottom: 12px; display: block;
}
.ark-node-card__sep { height: 1px; background: rgba(245,242,237,.08); margin: 15px 0; }
.ark-node-card__shot {
  display: block; width: 100%; border-radius: 3px; border: 1px solid var(--border, #2A2A2A);
  margin-top: 13px;
}

/* Relações laterais, escritas (§12) — legenda honesta do que o desenho diz */
/* gap real (e não fundo aparecendo por baixo): com 7 relações a última fileira
   fica incompleta, e a malha de 1px desenhava uma célula fantasma vazia. */
.ark-relmap {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(238px, 1fr));
  gap: 10px; margin-top: clamp(44px, 5vw, 78px);
}
.ark-relmap div {
  background: #0B0B0B; padding: 18px 20px;
  border: 1px solid rgba(245,242,237,.09); border-radius: 4px;
}
.ark-relmap b {
  display: block; font-size: 12.5px; font-weight: 600; color: #F5F2ED; margin-bottom: 5px;
  font-family: var(--font-mono, monospace); letter-spacing: .04em;
}
.ark-relmap b i { font-style: normal; color: var(--accent, #C4973A); padding: 0 4px; }
.ark-relmap p { margin: 0; font-size: 12.5px; line-height: 1.55; color: #8B8680; }

/* MOBILE (§13): a constelação vira coluna com fio contínuo */
.ark-const-mob { display: none; }
.ark-const-mob__rail { position: relative; padding-left: 30px; }
.ark-const-mob__rail::before {
  content: ""; position: absolute; left: 9px; top: 8px; bottom: 8px; width: 1px;
  background: linear-gradient(180deg, rgba(var(--accent-rgb),.7), rgba(var(--accent-rgb),.14));
}
.ark-mnode { position: relative; padding: 0 0 14px; }
.ark-mnode::before {
  content: ""; position: absolute; left: -25px; top: 18px;
  width: 9px; height: 9px; border-radius: 50%;
  background: #0A0A0A; border: 1.5px solid var(--accent, #C4973A);
}
.ark-mnode__btn {
  width: 100%; text-align: left; background: none; border: 0; color: inherit;
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
  padding: 14px 0; cursor: pointer;
}
.ark-mnode__btn b { font-size: 17px; font-weight: 700; color: #F5F2ED; }
.ark-mnode__btn i {
  font-style: normal; font-family: var(--font-mono, monospace); font-size: 10px;
  letter-spacing: .12em; text-transform: uppercase; color: #6B6560;
}
.ark-mnode__panel { display: none; padding-bottom: 8px; }
.ark-mnode.is-open .ark-mnode__panel { display: block; animation: arkFade .45s ease both; }
@keyframes arkFade { from { opacity: 0; transform: translateY(-6px); } to { opacity: 1; transform: none; } }

/* ═══════════════════════════════════════════════════════════════════════════
   §14 · PANTEON
   ═══════════════════════════════════════════════════════════════════════════ */

.ark-pant { display: grid; grid-template-columns: 1.05fr .95fr; gap: clamp(30px, 4vw, 74px); align-items: center; }
.ark-pant__grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.ark-agent {
  position: relative; background: none; border: 0; padding: 0; cursor: pointer;
  border-radius: 4px; overflow: hidden;
  border: 1px solid var(--border, #2A2A2A);
  transition: border-color .4s ease, transform .5s cubic-bezier(.16,1,.3,1);
}
.ark-agent:hover, .ark-agent.is-on { border-color: rgba(var(--accent-rgb),.6); transform: translateY(-4px); }
.ark-agent__img {
  display: block; width: 100%; aspect-ratio: 1/1; object-fit: cover;
  filter: grayscale(1) contrast(1.05) brightness(.86);
  transition: filter .55s ease;
}
.ark-agent:hover .ark-agent__img, .ark-agent.is-on .ark-agent__img { filter: grayscale(.15) contrast(1.02) brightness(1); }
.ark-agent__cap {
  position: absolute; inset-inline: 0; bottom: 0;
  padding: 22px 12px 11px; text-align: left;
  background: linear-gradient(180deg, transparent, rgba(8,8,8,.94));
}
.ark-agent__cap b { display: block; font-size: 13px; font-weight: 650; color: #F5F2ED; }
.ark-agent__cap span {
  font-family: var(--font-mono, monospace); font-size: 9.5px; letter-spacing: .12em;
  text-transform: uppercase; color: var(--accent, #C4973A);
}
.ark-pant__stage { position: relative; min-height: 336px; }

/* ═══════════════════════════════════════════════════════════════════════════
   §15 · QUANDO TUDO PENSA JUNTO
   ═══════════════════════════════════════════════════════════════════════════ */

.ark-quad { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; margin-top: clamp(40px,4vw,64px); }
.ark-quad .ark-card { height: 100%; padding: 24px; }
.ark-quad__n {
  font-family: var(--font-mono, monospace); font-size: 11px; letter-spacing: .14em;
  color: var(--accent, #C4973A); display: block; margin-bottom: 18px;
}
.ark-quad__t { margin: 0 0 12px; font-size: 17px; font-weight: 700; letter-spacing: .02em; color: #F5F2ED; }

.ark-center-claim {
  margin-top: clamp(50px, 5.5vw, 92px); text-align: center;
  font-family: 'Playfair Display', Georgia, serif;
  font-size: clamp(27px, 4.2vw, 60px); line-height: 1.12; letter-spacing: -.02em;
  color: #F5F2ED;
}
.ark-center-claim em { font-style: italic; color: var(--accent, #C4973A); }

/* ═══════════════════════════════════════════════════════════════════════════
   §16 · CASES
   ═══════════════════════════════════════════════════════════════════════════ */

.ark-case {
  display: grid; grid-template-columns: 1fr 1fr; gap: clamp(26px, 3.4vw, 60px);
  align-items: center;
  padding: clamp(30px, 3.4vw, 52px) 0;
  border-top: 1px solid rgba(245,242,237,.10);
}
.ark-case__client {
  font-size: clamp(24px, 3vw, 40px); font-weight: 700; letter-spacing: -.02em;
  color: #F5F2ED; margin: 0 0 6px;
}
.ark-case__seg {
  font-family: var(--font-mono, monospace); font-size: 11px; letter-spacing: .14em;
  text-transform: uppercase; color: var(--accent, #C4973A); display: block; margin-bottom: 26px;
}
.ark-case__steps { display: grid; gap: 0; margin: 0; }
.ark-case__steps > div {
  display: grid; grid-template-columns: 108px 1fr; gap: 18px;
  padding: 13px 0; border-bottom: 1px solid rgba(245,242,237,.07);
}
.ark-case__steps dt {
  font-family: var(--font-mono, monospace); font-size: 10.5px; letter-spacing: .13em;
  text-transform: uppercase; color: #6B6560; padding-top: 2px;
}
.ark-case__steps dd { margin: 0; font-size: 13.5px; line-height: 1.6; color: #C9C4BC; }
.ark-soon {
  display: inline-flex; align-items: center; gap: 7px;
  font-family: var(--font-mono, monospace); font-size: 10.5px; letter-spacing: .12em;
  text-transform: uppercase; color: #B8860B;
  background: rgba(184,134,11,.14); border: 1px solid rgba(184,134,11,.30);
  padding: 4px 11px; border-radius: 999px;
}

/* ═══════════════════════════════════════════════════════════════════════════
   §18 · CTA FINAL
   ═══════════════════════════════════════════════════════════════════════════ */

.ark-final { position: relative; overflow: hidden; background: #0A0A0A; }
.ark-final__canvas { position: absolute; inset: 0; width: 100%; height: 100%; z-index: 0; opacity: .58; pointer-events: none; }
.ark-final > .container { position: relative; z-index: 2; }
.ark-final__q {
  margin: 0 auto 40px; max-width: 17ch; text-align: center;
  font-size: clamp(32px, 5.4vw, 82px); font-weight: 800;
  letter-spacing: -.03em; line-height: 1.02; color: #F5F2ED;
}
.ark-final__q em { font-style: italic; font-weight: 400; font-family: 'Playfair Display', Georgia, serif; color: var(--accent, #C4973A); }
.ark-final__sub { text-align: center; color: #9A9590; font-size: 16px; line-height: 1.7; margin: 0 auto 44px; max-width: 52ch; }
.ark-final__strip {
  display: flex; flex-wrap: wrap; justify-content: center; gap: 10px 34px;
  margin-top: clamp(50px, 5vw, 84px); padding-top: 30px;
  border-top: 1px solid rgba(245,242,237,.09);
}
.ark-final__strip span {
  font-family: var(--font-mono, monospace); font-size: 11.5px; letter-spacing: .17em;
  text-transform: uppercase; color: #6B6560;
}

/* Botão secundário do hero */
.ark-btn-ghost {
  display: inline-flex; align-items: center; gap: 10px;
  color: #C9C4BC; font-size: 13.5px; font-weight: 600; letter-spacing: .06em;
  text-transform: uppercase; padding-bottom: 5px;
  border-bottom: 1px solid rgba(245,242,237,.24);
  transition: color .35s ease, border-color .35s ease, gap .35s ease;
}
.ark-btn-ghost:hover { color: var(--accent, #C4973A); border-color: var(--accent, #C4973A); gap: 16px; }
/* A 2ª linha do hero é mais concreta que a 1ª — precisa LER como outra camada,
   não como continuação do mesmo parágrafo. Fio dourado curto faz a separação. */
.ark-hero-sub {
  margin-top: 24px; padding-top: 20px;
  color: #8B8680; font-size: 14px; line-height: 1.68; max-width: 46ch;
  position: relative;
}
.ark-hero-sub::before {
  content: ""; position: absolute; top: 0; left: 0;
  width: 34px; height: 1px; background: var(--accent, #C4973A); opacity: .7;
}

/* ═══════════════════════════════════════════════════════════════════════════
   RESPONSIVO
   ═══════════════════════════════════════════════════════════════════════════ */

@media (max-width: 1199px) {
  /* Na faixa de tablet a coluna encolhe antes da tipografia — sem isto os
     títulos playfair passam alguns px da caixa. */
  .ark-sec .tp-section-title-playfair { font-size: clamp(28px, 4.4vw, 44px) !important; line-height: 1.08 !important; }
  .ark-steps { grid-template-columns: repeat(2, 1fr); }
  .ark-quad { grid-template-columns: repeat(2, 1fr); }
  .ark-inside { grid-template-columns: 1fr; }
  .ark-pant { grid-template-columns: 1fr; }
  .ark-pant__stage { min-height: 0; }
  .ark-line { grid-template-columns: 60px minmax(0,1fr) minmax(0,1fr) 48px; }
}

@media (max-width: 991px) {
  .ark-caos { grid-template-columns: 1fr; gap: 30px; }
  .ark-caos__side { min-height: 250px; }
  .ark-case { grid-template-columns: 1fr; }
  /* Constelação some; entra a coluna com fio (§13) */
  .ark-const { display: none; }
  .ark-const-mob { display: block; margin-top: 40px; }
}

@media (max-width: 767px) {
  /* O tema esconde os <br> no celular e deixa o texto refluir — palavra longa
     ("APRESENTAÇÃO.") estourava a caixa e era cortada pelo overflow:clip. */
  .ark-sec .tp-section-title-playfair,
  .ark-sec .ark-line__t,
  .ark-sec .ark-shout,
  .ark-final__q {
    overflow-wrap: break-word; word-break: normal; hyphens: auto;
  }
  .ark-sec .tp-section-title-playfair { font-size: clamp(27px, 8.2vw, 38px) !important; line-height: 1.1 !important; }
  .ark-arche__wordmark { font-size: clamp(52px, 20vw, 88px); }

  .ark-steps { grid-template-columns: 1fr; }
  .ark-quad { grid-template-columns: 1fr; }
  .ark-line {
    grid-template-columns: 1fr auto; grid-template-areas: "n go" "t t" "tags tags";
    gap: 14px; padding: 26px 0;
  }
  .ark-line__n { grid-area: n; }
  .ark-line__go { grid-area: go; width: 44px; height: 44px; }
  .ark-line__t { grid-area: t; }
  .ark-line__tags { grid-area: tags; }
  .ark-peek { display: none; }          /* no toque, o preview atrapalha a leitura */
  .ark-pant__grid { grid-template-columns: repeat(2, 1fr); }
  .ark-case__steps > div { grid-template-columns: 1fr; gap: 4px; }
  .ark-flowline { gap: 9px; }
  .ark-window__over { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  .ark-jsready .ark-rv { opacity: 1 !important; transform: none !important; }
  .ark-caos__chip, .ark-window__over { animation: none !important; }
  .ark-line:hover .ark-line__t { transform: none; }
}