/* VantAGI — site institucional (spec 07). Mesmos tokens da aplicação (estilo Ollama). */
@font-face { font-family: 'Inter Variable'; src: url('fonts/inter.woff2') format('woff2'); font-weight: 100 900; font-display: swap; }
@font-face { font-family: 'Nunito Variable'; src: url('fonts/nunito.woff2') format('woff2'); font-weight: 200 1000; font-display: swap; }

:root {
  --bg: #ffffff; --surface: #ffffff; --subtle: #f5f5f5; --border: #e5e5e5; --border-strong: #d4d4d4;
  --ink: #171717; --ink-2: #404040; --muted: #737373; --inv: #ffffff; --brand: #00a3ff;
  --ok: #16a34a;
  --ease: cubic-bezier(.4, 0, .2, 1);
  --titulo: ui-rounded, 'SF Pro Rounded', 'Nunito Variable', Nunito, system-ui, sans-serif;
  --texto: 'Inter Variable', Inter, system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  --max: 1160px;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #0a0a0a; --surface: #0a0a0a; --subtle: #171717; --border: #262626; --border-strong: #404040;
    --ink: #fafafa; --ink-2: #d4d4d4; --muted: #a3a3a3; --inv: #0a0a0a; }
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 400 16px/1.6 var(--texto); font-feature-settings: 'cv11', 'ss01'; }
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; }
::selection { background: #00a3ff33; }
:focus-visible { outline: 2px solid var(--brand); outline-offset: 3px; border-radius: 6px; }
.wrap { max-width: var(--max); margin: 0 auto; padding-inline: 24px; }
.titulo, h1, h2, h3 { font-family: var(--titulo); font-weight: 500; letter-spacing: -0.02em; margin: 0; line-height: 1.15; }
.muted { color: var(--muted); }
.skip { position: absolute; left: -999px; } .skip:focus { left: 16px; top: 16px; background: var(--ink); color: var(--inv); padding: 8px 14px; border-radius: 999px; z-index: 100; }

/* botões em pílula */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; height: 44px; padding: 0 22px; border-radius: 999px;
  font: 500 15px/1 var(--texto); text-decoration: none; border: 1px solid transparent; cursor: pointer; white-space: nowrap;
  transition: background-color .15s var(--ease), border-color .15s var(--ease), transform .1s var(--ease), color .15s var(--ease); }
.btn:active { transform: scale(.97); }
.btn-primary { background: var(--ink); color: var(--inv); }
.btn-primary:hover { background: color-mix(in srgb, var(--ink) 85%, var(--muted)); }
.btn-ghost { background: var(--surface); color: var(--ink); border-color: var(--border); }
.btn-ghost:hover { background: var(--subtle); }
.btn-sm { height: 36px; padding: 0 16px; font-size: 14px; }

/* navegação */
header.topo { position: sticky; top: 0; z-index: 50; background: color-mix(in srgb, var(--bg) 85%, transparent);
  backdrop-filter: saturate(180%) blur(12px); -webkit-backdrop-filter: saturate(180%) blur(12px); border-bottom: 1px solid transparent; transition: border-color .2s; }
header.topo.rolou { border-bottom-color: var(--border); }
.nav { display: flex; align-items: center; justify-content: space-between; height: 68px; gap: 16px; }
.logo { display: inline-flex; align-items: center; gap: 8px; text-decoration: none; font: 800 20px/1 var(--texto); letter-spacing: -0.04em; color: var(--ink); }
/* logo monocromático (preto no claro, branco no escuro): "Vant" regular + "AGI" em negrito */
.logo svg { color: var(--ink); } .logo .wm { font-weight: 500; } .logo .wm span { font-weight: 800; }
.nav-links { display: flex; gap: 4px; }
.nav-links a { text-decoration: none; color: var(--muted); font-size: 15px; padding: 8px 14px; border-radius: 999px; transition: color .15s, background-color .15s; }
.nav-links a:hover { color: var(--ink); background: var(--subtle); }
.nav-acoes { display: flex; gap: 8px; align-items: center; }
.so-mobile { display: none; }
.menu-btn { display: none; background: none; border: 0; padding: 8px; color: var(--ink); cursor: pointer; }

/* hero */
.hero { padding: 88px 0 40px; text-align: center; }
.selo { display: inline-flex; align-items: center; gap: 8px; font-size: 13px; color: var(--muted); border: 1px solid var(--border); border-radius: 999px; padding: 6px 14px; }
.selo .pulso { width: 7px; height: 7px; border-radius: 50%; background: var(--ok); box-shadow: 0 0 0 0 #16a34a66; animation: pulso 2.2s infinite; }
@keyframes pulso { 0% { box-shadow: 0 0 0 0 #16a34a55; } 70% { box-shadow: 0 0 0 8px #16a34a00; } 100% { box-shadow: 0 0 0 0 #16a34a00; } }
.hero h1 { font-size: clamp(38px, 6.2vw, 68px); line-height: 1.05; margin: 24px auto 20px; max-width: 900px; }
.hero p.lead { font-size: clamp(17px, 2vw, 20px); color: var(--muted); max-width: 680px; margin: 0 auto 32px; }
.hero .ctas { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
.hero small { display: block; margin-top: 18px; color: var(--muted); font-size: 13px; }
.vitrine { margin: 56px auto 0; max-width: 1080px; padding: 14px; border-radius: 28px;
  background: linear-gradient(180deg, var(--subtle), color-mix(in srgb, var(--subtle) 30%, var(--bg))); border: 1px solid var(--border); }
.janela { border-radius: 18px; overflow: hidden; border: 1px solid var(--border); background: var(--surface); box-shadow: 0 24px 60px -30px #00000040; }
.janela .barra { display: flex; gap: 6px; padding: 10px 14px; border-bottom: 1px solid var(--border); background: var(--surface); }
.janela .barra i { width: 10px; height: 10px; border-radius: 50%; background: var(--border-strong); display: block; }
.janela picture, .janela img { width: 100%; }

/* faixa de fatos */
.fatos { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; margin: 72px 0 0; border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.fato { padding: 28px 24px; border-left: 1px solid var(--border); }
.fato:first-child { border-left: 0; }
.fato b { display: block; font: 500 28px/1.1 var(--titulo); letter-spacing: -0.02em; }
.fato span { color: var(--muted); font-size: 14px; }

/* seções */
section { padding: 104px 0 0; }
.cab { max-width: 720px; margin-bottom: 48px; }
.cab.centro { margin-left: auto; margin-right: auto; text-align: center; }
.eyebrow { font-size: 13px; color: var(--muted); margin-bottom: 12px; display: block; }
.cab h2 { font-size: clamp(30px, 4vw, 44px); line-height: 1.12; }
.cab p { color: var(--muted); font-size: 18px; margin: 16px 0 0; }

.grade { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.cartao { border: 1px solid var(--border); border-radius: 20px; padding: 28px; background: var(--surface); transition: border-color .2s var(--ease), transform .2s var(--ease); }
.cartao:hover { border-color: var(--border-strong); transform: translateY(-2px); }
.cartao .ic { width: 40px; height: 40px; border-radius: 12px; display: grid; place-items: center; background: var(--subtle); margin-bottom: 20px; }
.cartao .ic svg { width: 20px; height: 20px; stroke: var(--ink); fill: none; stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; }
.cartao h3 { font-size: 19px; margin-bottom: 8px; }
.cartao p { color: var(--muted); margin: 0; font-size: 15px; }

/* destaque com imagem */
.destaque { display: grid; grid-template-columns: 1fr 1.25fr; gap: 56px; align-items: center; }
.destaque.inv { grid-template-columns: 1.25fr 1fr; }
.destaque.inv .texto { order: 2; }
.destaque ul { list-style: none; padding: 0; margin: 24px 0 0; display: grid; gap: 12px; }
.destaque li { display: flex; gap: 10px; align-items: flex-start; color: var(--ink-2); }
.destaque li::before { content: ''; flex: none; width: 18px; height: 18px; margin-top: 3px; border-radius: 50%;
  background: var(--subtle) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23737373' stroke-width='2.4' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M5 12l5 5L20 7'/%3E%3C/svg%3E") center/12px no-repeat; }
.destaque .quadro { border-radius: 20px; overflow: hidden; border: 1px solid var(--border); background: var(--subtle); padding: 10px; }
.destaque .quadro img { border-radius: 12px; border: 1px solid var(--border); }

/* passos */
.passos { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; counter-reset: passo; }
.passo { padding: 28px; border-radius: 20px; background: var(--subtle); }
.passo::before { counter-increment: passo; content: counter(passo); display: grid; place-items: center; width: 32px; height: 32px;
  border-radius: 50%; background: var(--ink); color: var(--inv); font: 600 14px/1 var(--texto); margin-bottom: 18px; }
.passo h3 { font-size: 19px; margin-bottom: 6px; }
.passo p { margin: 0; color: var(--muted); font-size: 15px; }

/* roadmap */
.etiqueta { display: inline-block; font-size: 12px; border: 1px solid var(--border); border-radius: 999px; padding: 2px 10px; color: var(--muted); margin-bottom: 14px; }

/* planos */
.alternar { display: inline-flex; background: var(--subtle); border-radius: 999px; padding: 4px; margin: 0 auto 40px; position: relative; }
.alternar button { border: 0; background: transparent; font: 500 14px/1 var(--texto); color: var(--muted); padding: 10px 18px; border-radius: 999px; cursor: pointer; position: relative; z-index: 1; transition: color .2s; }
.alternar button[aria-pressed='true'] { color: var(--ink); }
.alternar .indicador { position: absolute; top: 4px; bottom: 4px; left: 4px; border-radius: 999px; background: var(--surface); box-shadow: 0 1px 3px #0000001a; transition: transform .25s var(--ease), width .25s var(--ease); }
.alternar .economia { font-size: 11px; color: var(--ok); margin-left: 6px; }
.planos { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; align-items: stretch; }
.plano { border: 1px solid var(--border); border-radius: 24px; padding: 32px; display: flex; flex-direction: column; background: var(--surface); position: relative; }
.plano.destacado { border-color: var(--ink); }
.plano .fita { position: absolute; top: -12px; left: 32px; background: var(--ink); color: var(--inv); font-size: 12px; padding: 4px 12px; border-radius: 999px; }
.plano h3 { font-size: 20px; }
.plano .para { color: var(--muted); font-size: 14px; margin: 6px 0 24px; min-height: 42px; }
.preco { display: flex; align-items: baseline; gap: 6px; }
.preco b { font: 500 44px/1 var(--titulo); letter-spacing: -0.03em; transition: opacity .2s; }
.preco span { color: var(--muted); font-size: 14px; }
.preco-nota { color: var(--muted); font-size: 13px; min-height: 20px; margin: 8px 0 24px; }
.plano ul { list-style: none; padding: 0; margin: 0 0 28px; display: grid; gap: 10px; font-size: 15px; flex: 1; }
.plano li { display: flex; gap: 10px; color: var(--ink-2); }
.plano li::before { content: '✓'; color: var(--muted); flex: none; }
.plano li.breve { color: var(--muted); }
.plano li.breve::before { content: '◦'; }
.plano .btn { width: 100%; }
.planos-nota { text-align: center; color: var(--muted); font-size: 14px; margin-top: 24px; }

/* comparação */
.tabela { width: 100%; border-collapse: collapse; font-size: 15px; margin-top: 24px; }
.tabela th, .tabela td { text-align: left; padding: 14px 12px; border-bottom: 1px solid var(--border); }
.tabela th { font-weight: 400; color: var(--muted); font-size: 13px; }
.tabela td:not(:first-child), .tabela th:not(:first-child) { text-align: center; }
.tabela .sim { color: var(--ink); } .tabela .nao { color: var(--border-strong); }
.rolagem { overflow-x: auto; }

/* FAQ */
.faq { max-width: 800px; margin: 0 auto; }
.faq details { border-bottom: 1px solid var(--border); }
.faq summary { list-style: none; cursor: pointer; padding: 22px 0; font: 500 18px/1.4 var(--titulo); display: flex; justify-content: space-between; gap: 16px; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: '+'; font: 300 24px/1 var(--texto); color: var(--muted); transition: transform .2s var(--ease); }
.faq details[open] summary::after { transform: rotate(45deg); }
.faq details p { margin: 0 0 22px; color: var(--muted); }

/* CTA final */
.final { margin: 104px 0 0; border-radius: 32px; background: var(--ink); color: var(--inv); padding: 72px 32px; text-align: center; }
.final h2 { font-size: clamp(30px, 4vw, 46px); }
.final p { opacity: .7; font-size: 18px; margin: 16px auto 32px; max-width: 560px; }
.final .btn-primary { background: var(--inv); color: var(--ink); }
.final .btn-ghost { background: transparent; color: var(--inv); border-color: color-mix(in srgb, var(--inv) 30%, transparent); }
.final .btn-ghost:hover { background: color-mix(in srgb, var(--inv) 10%, transparent); }

/* rodapé */
footer { margin-top: 104px; border-top: 1px solid var(--border); padding: 56px 0 40px; font-size: 14px; }
.rodape { display: grid; grid-template-columns: 1.6fr repeat(3, 1fr); gap: 32px; }
.rodape h4 { font: 500 14px/1 var(--texto); margin: 0 0 16px; }
.rodape ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 2px; }
.rodape a { color: var(--muted); text-decoration: none; display: inline-block; padding: 4px 0; } .rodape a:hover { color: var(--ink); text-decoration: underline; }
.rodape a.logo { color: var(--ink); padding: 0; display: inline-flex; } .rodape a.status-link { display: inline-flex; } .rodape a.logo:hover { text-decoration: none; }
.legal { margin-top: 48px; padding-top: 24px; border-top: 1px solid var(--border); color: var(--muted); font-size: 13px; display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
.status-link { display: inline-flex; align-items: center; gap: 8px; }
.status-link i { width: 7px; height: 7px; border-radius: 50%; background: var(--ok); display: inline-block; }

/* revelação ao rolar */
.revelar { opacity: 0; transform: translateY(14px); transition: opacity .6s var(--ease), transform .6s var(--ease); }
.revelar.visivel { opacity: 1; transform: none; }
.hero > * { animation: entrar .7s var(--ease) both; }
.hero > *:nth-child(2) { animation-delay: .06s; } .hero > *:nth-child(3) { animation-delay: .12s; }
.hero > *:nth-child(4) { animation-delay: .18s; } .hero > *:nth-child(5) { animation-delay: .24s; } .hero > *:nth-child(6) { animation-delay: .32s; }
@keyframes entrar { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: none; } }
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; scroll-behavior: auto !important; }
  .revelar { opacity: 1; transform: none; }
}

/* páginas de texto (política de privacidade) */
.prosa { max-width: 760px; padding-top: 64px; }
.prosa h1 { font-size: clamp(34px, 5vw, 48px); margin: 12px 0 8px; }
.prosa .atualizado { color: var(--muted); font-size: 14px; margin: 0 0 32px; }
.prosa h2 { font-size: 22px; margin: 40px 0 12px; }
.prosa p, .prosa li { color: var(--ink-2); }
.prosa ul { padding-left: 20px; } .prosa li { margin: 6px 0; }
.prosa a { text-underline-offset: 3px; }

/* responsivo */
@media (max-width: 960px) {
  .nav-links, .nav-acoes .btn-ghost { display: none; }
  .menu-btn { display: inline-flex; }
  .nav-links .so-mobile { display: block; }
  .nav-links.aberto { display: flex; position: absolute; top: 68px; left: 0; right: 0; flex-direction: column; padding: 12px 24px 20px; background: var(--bg); border-bottom: 1px solid var(--border); }
  .grade, .passos, .planos { grid-template-columns: 1fr; }
  .destaque, .destaque.inv { grid-template-columns: 1fr; gap: 32px; }
  .destaque.inv .texto { order: 0; }
  .fatos { grid-template-columns: repeat(2, 1fr); }
  .fato:nth-child(3) { border-left: 0; } .fato:nth-child(n+3) { border-top: 1px solid var(--border); }
  .rodape { grid-template-columns: 1fr 1fr; }
  .hero { padding-top: 56px; }
  section { padding-top: 80px; }
}
@media (max-width: 520px) {
  .wrap { padding-inline: 16px; }
  .rodape { grid-template-columns: 1fr; }
  .vitrine { padding: 8px; border-radius: 20px; margin-top: 40px; }
  .janela { border-radius: 12px; }
  .final { padding: 56px 20px; border-radius: 24px; }
  .plano { padding: 28px 22px; }
}