/* Harne8 — design system do site institucional (Direção D ratificada).
   Tokens idênticos ao Portal (graphforge/graphforge-web/src/styles/globals.css)
   — não duplicar/fragmentar; ver docs/brand/design-tokens.md. */

:root {
  --app-bg: #f6f7f9;
  --surface: #ffffff;
  --surface-muted: #f8fafc;
  --border: #d9dee7;
  --text: #172033;
  --text-muted: #5d6878;
  --accent: #2563eb;
  --accent-strong: #1d4ed8;
  --accent-soft: #dbeafe;
  /* --cta-bg NÃO varia por tema: #60a5fa (--accent no dark) é claro demais
     para texto branco em cima (contrast 2.54:1, falha AA) — verificado via
     Lighthouse real. #2563eb com texto branco passa AA (5.17:1) nos dois
     temas, então fixamos o preenchimento do botão primário. */
  --cta-bg: #2563eb;
  --cta-bg-hover: #1d4ed8;
  --radius-sm: 6px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --mono: ui-monospace, "JetBrains Mono", SFMono-Regular, Menlo, Consolas, monospace;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, Roboto, Helvetica, Arial, sans-serif;
  --duration-fast: 120ms;
  --easing-standard: cubic-bezier(0.4, 0, 0.2, 1);
}

@media (prefers-color-scheme: dark) {
  :root {
    --app-bg: #090b10;
    --surface: #121722;
    --surface-muted: #171d29;
    --border: #2b3444;
    --text: #eef2f8;
    --text-muted: #b7c0cf;
    --accent: #60a5fa;
    --accent-strong: #93c5fd;
    --accent-soft: #17294a;
  }
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  font-family: var(--sans);
  background: var(--app-bg);
  color: var(--text);
  line-height: 1.5;
}

a { color: var(--accent); }
a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

img, svg { max-width: 100%; height: auto; }

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--surface);
  color: var(--text);
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  z-index: 100;
}
.skip-link:focus { left: 8px; top: 8px; }

/* ---- Shell (header/footer, compartilhado em toda página) ---- */

.site-header {
  border-bottom: 1px solid var(--border);
  background: var(--surface);
}
.site-header .inner {
  max-width: 1120px;
  margin: 0 auto;
  padding: 16px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.site-header .wordmark {
  font-family: var(--mono);
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--accent-strong);
  text-decoration: none;
  letter-spacing: -0.01em;
}
.site-nav { display: flex; gap: 24px; flex-wrap: wrap; }
.site-nav a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.9375rem;
  font-weight: 500;
}
.site-nav a:hover { color: var(--text); }
.site-nav a[aria-current="page"] { color: var(--text); font-weight: 700; text-decoration: underline; text-underline-offset: 4px; }

/* ---- Menu mobile: checkbox hack, zero JS, sempre funcional ---- */
/* Ordem no DOM importa: <input type=checkbox> precisa vir antes de
   .site-nav para o combinador ~ funcionar. Sem JS nenhum — o menu abre
   e fecha só com CSS, mais resiliente que qualquer toggle via script. */
.nav-toggle-input { position: absolute; opacity: 0; pointer-events: none; }
.nav-toggle-label {
  display: none;
  cursor: pointer;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border);
  color: var(--text);
}
.nav-toggle-label:hover { border-color: var(--text-muted); }
.nav-toggle-input:focus-visible + .nav-toggle-label { outline: 2px solid var(--accent); outline-offset: 2px; }

@media (max-width: 720px) {
  .site-header .inner { flex-wrap: wrap; }
  .nav-toggle-label { display: inline-flex; }
  .site-nav {
    flex-basis: 100%;
    max-height: 0;
    overflow: hidden;
    flex-direction: column;
    flex-wrap: nowrap;
    gap: 4px;
    transition: max-height 240ms var(--easing-standard);
  }
  .nav-toggle-input:checked ~ .site-nav {
    max-height: 400px;
  }
  .site-nav a { padding: 10px 4px; min-height: 44px; display: flex; align-items: center; }
}

.site-footer {
  border-top: 1px solid var(--border);
  margin-top: 96px;
  padding: 48px 24px;
}
.site-footer .inner {
  max-width: 1120px;
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  gap: 32px;
  justify-content: space-between;
  font-size: 0.875rem;
  color: var(--text-muted);
}
.site-footer a { color: var(--text-muted); }
.site-footer nav { display: flex; flex-direction: column; gap: 8px; }

/* ---- Layout genérico de página ---- */

.page { max-width: 1120px; margin: 0 auto; padding: 0 24px; }
.prose { max-width: 720px; }
.prose h2 { margin-top: 48px; }
.prose p { color: var(--text-muted); }

/* ---- Hero ---- */

.hero { max-width: 760px; padding: 72px 0 48px; }
.kicker {
  font-family: var(--mono);
  font-size: 0.8125rem;
  color: var(--accent);
  letter-spacing: 0.02em;
  margin-bottom: 20px;
}
.kicker::before { content: "$ "; color: var(--text-muted); }

h1.tagline {
  font-size: clamp(2rem, 4vw, 2.75rem);
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin: 0 0 16px;
  font-weight: 700;
}
p.headline {
  font-size: 1.125rem;
  color: var(--text-muted);
  line-height: 1.55;
  margin: 0 0 32px;
  max-width: 60ch;
}

.cta-row { display: flex; gap: 12px; flex-wrap: wrap; margin-bottom: 48px; }
.btn {
  display: inline-block;
  border-radius: var(--radius-md);
  padding: 12px 20px;
  font-size: 0.95rem;
  font-weight: 600;
  font-family: var(--sans);
  text-decoration: none;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform var(--duration-fast) var(--easing-standard);
}
.btn-primary { background: var(--cta-bg); color: #fff; }
.btn-primary:hover { background: var(--cta-bg-hover); }
/* border-color usa --text-muted (não --border): --border sozinho não
   atinge 3:1 de contraste contra --app-bg (WCAG 1.4.11, non-text) */
.btn-ghost { background: transparent; color: var(--text); border-color: var(--text-muted); }
.btn:hover { transform: translateY(-1px); }

/* ---- Bloco de prova (estilo terminal) ---- */

.proof {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 20px 24px;
  margin-bottom: 48px;
  font-family: var(--mono);
  font-size: 0.8125rem;
  overflow-x: auto;
}
.proof .line { color: var(--text-muted); margin: 0 0 6px; white-space: pre-wrap; }
.proof .line::before { content: "> "; color: var(--accent); }
.proof .out { color: var(--text); margin: 0 0 4px 16px; white-space: pre-wrap; }

/* ---- Grids de cards ---- */

.grid-2 { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 16px; }
.grid-3 { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 16px; }

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 20px;
}
.card h3 { margin: 0 0 8px; font-size: 1.0625rem; }
.card p { color: var(--text-muted); font-size: 0.9375rem; margin: 0; }
.card .tag {
  font-family: var(--mono);
  font-size: 0.75rem;
  color: var(--accent);
  display: block;
  margin-bottom: 8px;
}

section { padding: 32px 0; }
section h2 { font-size: 1.5rem; margin: 0 0 8px; }
section .lede { color: var(--text-muted); margin: 0 0 24px; max-width: 60ch; }

.badge {
  display: inline-block;
  font-family: var(--mono);
  font-size: 0.75rem;
  padding: 2px 8px;
  border: 1px solid var(--border);
  border-radius: 999px;
  color: var(--text-muted);
}

table { border-collapse: collapse; width: 100%; font-size: 0.9375rem; }
th, td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--border); }
th { color: var(--text-muted); font-weight: 600; font-size: 0.8125rem; text-transform: uppercase; letter-spacing: 0.02em; }

/* Alvo de toque mínimo 24px (WCAG 2.5.8) para qualquer elemento interativo */
a, button, input, textarea, select { min-height: 24px; }
.site-nav a, .btn { min-height: 44px; display: inline-flex; align-items: center; }

@media (max-width: 640px) {
  .site-nav { gap: 16px; }
  .hero { padding: 48px 0 32px; }
}

/* ---- Camada "moderna/agêntica": glow decorativo, reveal on-scroll, fluxo ----
   Aditivo — não altera nada usado pelas páginas existentes. Pensado para uso
   inicial em /pose; candidato natural a uma spec própria de refresh visual
   site-wide, se o resultado aqui validar bem. Toda animação respeita
   prefers-reduced-motion (motion vira só estado final, sem transição). */

.hero-glow {
  position: relative;
  isolation: isolate;
}
.hero-glow::before {
  content: "";
  position: absolute;
  inset: -20% -10% auto -10%;
  height: 480px;
  z-index: -1;
  background:
    radial-gradient(480px 240px at 15% 20%, color-mix(in srgb, var(--accent) 22%, transparent), transparent 70%),
    radial-gradient(420px 220px at 85% 10%, color-mix(in srgb, var(--accent-strong) 16%, transparent), transparent 70%);
  filter: blur(4px);
  animation: glow-drift 16s ease-in-out infinite alternate;
}
@keyframes glow-drift {
  from { transform: translate3d(0, 0, 0) scale(1); }
  to   { transform: translate3d(2%, 3%, 0) scale(1.05); }
}

/* grade de fundo sutil, textura "infra" sem competir com o texto */
.grid-veil {
  position: absolute;
  inset: 0;
  z-index: -1;
  background-image:
    linear-gradient(color-mix(in srgb, var(--border) 60%, transparent) 1px, transparent 1px),
    linear-gradient(90deg, color-mix(in srgb, var(--border) 60%, transparent) 1px, transparent 1px);
  background-size: 40px 40px;
  mask-image: linear-gradient(to bottom, black, transparent 85%);
  opacity: 0.5;
}

/* .reveal só some se o JS confirmar que rodou (marca .js-anim em <html>) —
   sem isso, o conteúdo fica sempre visível por padrão (progressive
   enhancement; nunca depende de JS para ser lido). */
.js-anim .reveal {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 480ms var(--easing-standard), transform 480ms var(--easing-standard);
}
.js-anim .reveal.is-visible { opacity: 1; transform: translateY(0); }

/* ---- Fluxo (ciclo fechado: install -> spec -> gate -> evidência -> commit) ---- */

.flow {
  display: flex;
  flex-wrap: wrap;
  gap: 0;
  counter-reset: flow-step;
  margin: 8px 0 0;
}
.flow-step {
  flex: 1 1 160px;
  position: relative;
  padding: 20px 16px 16px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  margin: 0 8px 8px 0;
}
.flow-step::before {
  counter-increment: flow-step;
  content: counter(flow-step);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  border-radius: 999px;
  background: var(--cta-bg);
  color: #fff;
  font-family: var(--mono);
  font-size: 0.75rem;
  font-weight: 700;
  margin-bottom: 10px;
}
.flow-step h3 { margin: 0 0 6px; font-size: 0.9375rem; }
.flow-step p { margin: 0; color: var(--text-muted); font-size: 0.8438rem; }
.flow-step code { font-family: var(--mono); font-size: 0.8125rem; color: var(--accent-strong); }

/* ---- Linha de métricas (prova rápida, número + rótulo) ---- */

.stat-row { display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: 16px; margin: 24px 0; }
.stat { text-align: left; }
.stat .n { font-family: var(--mono); font-size: 1.75rem; font-weight: 700; color: var(--accent-strong); line-height: 1; }
.stat .l { font-size: 0.8125rem; color: var(--text-muted); margin-top: 4px; }

/* ---- Comparação: destaca a coluna do produto próprio ---- */

table.compare th.own, table.compare td.own {
  background: var(--accent-soft);
}
table.compare td.yes { color: var(--accent-strong); font-weight: 600; }

/* ---- Texto em gradiente: destaque "tecnológico" em palavra-chave do heading ---- */

.text-gradient {
  background: linear-gradient(100deg, var(--accent-strong), var(--accent) 55%, var(--accent-strong));
  background-size: 200% auto;
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  animation: gradient-pan 6s ease-in-out infinite alternate;
}

@keyframes gradient-pan {
  from { background-position: 0% center; }
  to   { background-position: 100% center; }
}

/* ---- Cards: elevação sutil + borda com glow no hover (desktop) ---- */

.card {
  transition: transform 200ms var(--easing-standard), border-color 200ms var(--easing-standard), box-shadow 200ms var(--easing-standard);
}
@media (hover: hover) {
  .card:hover {
    transform: translateY(-3px);
    border-color: color-mix(in srgb, var(--accent) 55%, var(--border));
    box-shadow: 0 8px 24px -12px color-mix(in srgb, var(--accent) 35%, transparent);
  }
}

/* ---- Badge "vivo": pulso sutil para status/prova operacional ---- */

.badge-live {
  position: relative;
  padding-left: 20px;
}
.badge-live::before {
  content: "";
  position: absolute;
  left: 8px;
  top: 50%;
  width: 6px;
  height: 6px;
  border-radius: 999px;
  background: var(--accent);
  transform: translateY(-50%);
  animation: badge-pulse 2s ease-in-out infinite;
}
@keyframes badge-pulse {
  0%, 100% { opacity: 1; box-shadow: 0 0 0 0 color-mix(in srgb, var(--accent) 50%, transparent); }
  50% { opacity: 0.6; box-shadow: 0 0 0 4px transparent; }
}

@media (prefers-reduced-motion: reduce) {
  .hero-glow::before { animation: none; }
  .reveal { transition: none; opacity: 1; transform: none; }
  .site-nav { transition: none; }
  .text-gradient { animation: none; background-position: 0% center; }
  .badge-live::before { animation: none; }
  .card { transition: none; }
}