/* Site público da Autaia — identidade do design system (docs/design-system.md).
   Azul Autaia como tinta e cor de ação, verde Autaia nos destaques e nos balões de resposta,
   Montserrat nos títulos e Manrope no texto. A animação fica concentrada na conversa da página inicial. */

:root {
  --paper: #f1f6fa;      /* azul-50 */
  --paper-2: #dee9f3;    /* azul-100 */
  --ink: #0b2d4a;        /* azul Autaia */
  --ink-2: #3b4b5a;      /* cinza-700 */
  --muted: #5e6e7c;      /* cinza-500 */
  --line: #e3e8ed;       /* cinza-200 */
  --bubble-out: #ccf6ec; /* verde-100 */
  --bubble-in: #ffffff;
  --receipt: #0b2d4a;    /* ação principal: azul Autaia */
  --receipt-dark: #123e63;
  --link: #007a63;       /* verde para texto em fundo claro */
  --brand-green: #00d1a7;/* verde Autaia: só formas e fundos, nunca texto sobre branco */
  --tick: #00a585;
  --signal: #007a63;
  --warn: #b5541c;
  --radius-bubble: 18px;
  --radius-ui: 10px;
  --display: 'Montserrat', 'Segoe UI', system-ui, sans-serif;
  --text: 'Manrope', 'Segoe UI', system-ui, sans-serif;
  --code: 'JetBrains Mono', ui-monospace, Consolas, monospace;
  --wrap: 1120px;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font: 17px/1.6 var(--text);
  text-rendering: optimizeLegibility;
}
img { max-width: 100%; height: auto; }
a { color: var(--link); text-underline-offset: 3px; }
a:hover { color: var(--ink); }
:focus-visible { outline: 3px solid var(--link); outline-offset: 3px; border-radius: 4px; }
[hidden] { display: none !important; }

h1, h2, h3, h4 { font-family: var(--display); color: var(--ink); margin: 0 0 .5em; letter-spacing: -0.02em; }
h1 { font-size: clamp(2.3rem, 5.4vw, 4.1rem); line-height: 1.02; font-weight: 800; }
h2 { font-size: clamp(1.75rem, 3.4vw, 2.6rem); line-height: 1.08; font-weight: 700; max-width: 22ch; }
h3 { font-size: 1.2rem; line-height: 1.25; font-weight: 700; letter-spacing: -0.01em; }
p { margin: 0 0 1em; }
code, pre { font-family: var(--code); font-size: .88em; }
.muted { color: var(--muted); }
.small { font-size: .875rem; }
.lead { font-size: 1.2rem; color: var(--ink-2); max-width: 60ch; }
.center { text-align: center; }
.mono { font-family: inherit; } /* rótulos ficam na fonte do texto; mono só em código */

.wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 24px; }
.wrap.narrow { max-width: 780px; }
.skip { position: absolute; left: -999px; }
.skip:focus { left: 16px; top: 16px; background: #fff; padding: 8px 12px; z-index: 99; }

/* ----- Botões ----- */
.btn-signal, .btn-outline, .btn-ghost {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  font: 600 1rem/1 var(--text); padding: 13px 20px; border-radius: 999px;
  text-decoration: none; cursor: pointer; border: 1.5px solid transparent;
  transition: background .15s, color .15s, border-color .15s;
}
.btn-signal { background: var(--receipt); color: #fff; }
.btn-signal:hover { background: var(--receipt-dark); color: #fff; }
.btn-outline { border-color: var(--ink); color: var(--ink); background: transparent; }
.btn-outline:hover { background: var(--ink); color: var(--paper); }
.btn-ghost { color: var(--ink); background: transparent; }
.btn-ghost:hover { background: var(--paper-2); color: var(--ink); }
.lg { padding: 16px 26px; font-size: 1.05rem; }
.block { width: 100%; }

/* ----- Cabeçalho ----- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: color-mix(in srgb, var(--paper) 88%, transparent);
  backdrop-filter: saturate(1.4) blur(10px);
  border-bottom: 1px solid var(--line);
}
.header-inner { display: flex; align-items: center; gap: 28px; height: 68px; }
.brand { display: flex; align-items: center; gap: 10px; font: 800 1.25rem var(--display); color: var(--ink); text-decoration: none; letter-spacing: -0.02em; }
.brand .marca { display: block; height: 24px; width: auto; }
.site-footer .brand .marca { height: 22px; }
.visually-hidden { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.main-nav { display: flex; gap: 4px; flex: 1; }
.main-nav a { color: var(--ink-2); text-decoration: none; padding: 8px 12px; border-radius: 999px; font-weight: 500; }
.main-nav a:hover, .main-nav a[aria-current] { color: var(--ink); background: var(--paper-2); }
.header-cta { display: flex; gap: 8px; }
.header-cta .btn-signal, .header-cta .btn-ghost { padding: 10px 16px; }
.menu-toggle { display: none; background: none; border: 0; width: 40px; height: 40px; cursor: pointer; }
.menu-toggle span { display: block; height: 2px; background: var(--ink); margin: 7px 8px; transition: transform .2s; }

/* ----- Hero: a conversa ----- */
.hero { padding: 56px 0 72px; overflow: hidden; }
.hero-inner { display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr); gap: 56px; align-items: end; }
.hero-thread {
  display: flex; flex-direction: column; gap: 10px;
  padding: 28px; border-radius: 28px;
  background:
    radial-gradient(circle at 20% 10%, rgba(0, 209, 167, .10), transparent 40%),
    var(--paper-2);
}
.msg {
  position: relative; margin: 0; max-width: 88%;
  padding: 10px 14px 22px; border-radius: var(--radius-bubble);
  font: 500 1.05rem/1.45 var(--text); color: var(--ink);
  box-shadow: 0 1px 0 rgba(11, 45, 74, .08);
}
.msg time { position: absolute; right: 12px; bottom: 5px; font: 400 .72rem var(--text); color: var(--muted); display: flex; gap: 4px; align-items: center; }
.msg.in { align-self: flex-start; background: var(--bubble-in); border-top-left-radius: 4px; }
.msg.out { align-self: flex-end; background: var(--bubble-out); border-top-right-radius: 4px; }
.msg.headline { max-width: 100%; padding: 18px 22px 30px; }
.msg.headline span { display: block; font: 800 clamp(2rem, 4.6vw, 3.6rem)/1.02 var(--display); letter-spacing: -0.03em; }
.ticks { display: inline-block; width: 16px; height: 10px; background: currentColor; color: var(--muted);
  -webkit-mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 10'%3E%3Cpath d='M1 5.5l2.5 2.5L9 2.5M6 8l1 .9L14.5 1.5' fill='none' stroke='black' stroke-width='1.7' stroke-linecap='round'/%3E%3C/svg%3E") no-repeat center / contain;
          mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 10'%3E%3Cpath d='M1 5.5l2.5 2.5L9 2.5M6 8l1 .9L14.5 1.5' fill='none' stroke='black' stroke-width='1.7' stroke-linecap='round'/%3E%3C/svg%3E") no-repeat center / contain;
  transition: color .4s .6s; }
.msg.read .ticks { color: var(--tick); }
.list-msg { display: flex; flex-direction: column; }
.list-btn { margin-top: 10px; border: 0; border-top: 1px solid rgba(11, 45, 74, .12); background: transparent; padding: 10px 0 2px; font: 600 1rem var(--text); color: var(--link); cursor: default; }
.list-btn.tapped { background: rgba(0, 209, 167, .18); border-radius: 8px; }

/* Sequência de entrada: só acontece com JS e sem preferência por menos movimento. */
.js .hero-thread .msg { opacity: 0; transform: translateY(10px) scale(.98); transition: opacity .35s ease, transform .35s ease; }
.js .hero-thread .msg.shown { opacity: 1; transform: none; }
.hero-copy .lead { font-size: 1.25rem; }
.hero-cta { display: flex; flex-wrap: wrap; gap: 10px; margin: 24px 0 14px; }

/* ----- Seções ----- */
.section { padding: 88px 0; }
.section.alt { background: #fff; border-block: 1px solid var(--line); }
.page-hero { padding: 64px 0 24px; }
.page-hero h1 { max-width: 20ch; }
.eyebrow { color: var(--muted); font-size: .95rem; margin-bottom: 10px; }
.eyebrow a { color: var(--muted); }

.steps { list-style: none; padding: 0; margin: 40px 0 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 36px; counter-reset: s; }
.steps li { border-top: 2px solid var(--ink); padding-top: 18px; }
.step-n { display: inline-grid; place-items: center; width: 34px; height: 34px; border-radius: 50%; background: var(--bubble-out); font: 800 1rem var(--display); margin-bottom: 14px; }

/* Recursos: lista em duas colunas, sem caixas idênticas. */
.feature-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 4px 56px; margin: 40px 0 32px; }
.feature { display: grid; grid-template-columns: 44px 1fr; column-gap: 16px; padding: 22px 0; border-bottom: 1px solid var(--line); }
.feature .ico { grid-row: span 2; width: 40px; height: 40px; padding: 9px; border-radius: 14px 14px 14px 4px; background: var(--bubble-out); color: var(--signal); }
.feature h3 { margin: 2px 0 4px; }
.feature p { margin: 0; color: var(--ink-2); }
.feature-columns { display: grid; grid-template-columns: repeat(3, 1fr); gap: 40px; margin-top: 28px; }

.split { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center; }
.checks { list-style: none; padding: 0; margin: 0 0 24px; }
.checks li { position: relative; padding-left: 28px; margin: 8px 0; }
.checks li::before { content: ''; position: absolute; left: 0; top: .5em; width: 16px; height: 10px; background: var(--signal);
  -webkit-mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 10'%3E%3Cpath d='M1 5.5l2.5 2.5L9 2.5M6 8l1 .9L14.5 1.5' fill='none' stroke='black' stroke-width='1.7' stroke-linecap='round'/%3E%3C/svg%3E") no-repeat center / contain;
          mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 10'%3E%3Cpath d='M1 5.5l2.5 2.5L9 2.5M6 8l1 .9L14.5 1.5' fill='none' stroke='black' stroke-width='1.7' stroke-linecap='round'/%3E%3C/svg%3E") no-repeat center / contain; }
.checks.big li { font-size: 1.08rem; }

/* Relatório de importação, com cara de comprovante. */
.import-receipt { background: #fff; border: 1px solid var(--line); border-radius: 6px; padding: 28px 28px 18px; box-shadow: 0 18px 40px -24px rgba(11, 45, 74, .35); }
.receipt-title { font: 700 1.1rem var(--display); border-bottom: 2px dashed var(--line); padding-bottom: 12px; }
.import-receipt dl { margin: 0 0 12px; }
.import-receipt dl div { display: flex; justify-content: space-between; padding: 10px 0; border-bottom: 1px solid var(--paper-2); }
.import-receipt dd { margin: 0; font: 800 1.35rem var(--display); color: var(--signal); }

/* Código */
.code-card { background: var(--ink); border-radius: 16px; overflow: hidden; }
.code-tabs { display: flex; gap: 4px; padding: 10px 10px 0; }
.code-tabs button { font: 500 .85rem var(--text); color: #bcd3e7; background: transparent; border: 0; padding: 8px 12px; border-radius: 8px 8px 0 0; cursor: pointer; }
.code-tabs button.active { background: #123e63; color: #fff; }
.code-card pre { margin: 0; padding: 20px; overflow-x: auto; color: #dee9f3; background: #0b2d4a; line-height: 1.6; }

/* ----- Preços ----- */
.plans { display: grid; grid-template-columns: repeat(auto-fit, minmax(210px, 1fr)); gap: 0; margin: 36px 0 28px; border: 1px solid var(--line); border-radius: 16px; overflow: hidden; background: #fff; }
.plan { position: relative; padding: 28px 22px; border-right: 1px solid var(--line); display: flex; flex-direction: column; }
.plan:last-child { border-right: 0; }
.plan.featured { background: var(--paper); box-shadow: inset 0 0 0 2px var(--brand-green); }
.badge-hot { position: absolute; top: 14px; right: 14px; font-size: .78rem; font-weight: 600; color: var(--receipt); }
.plan-desc { color: var(--muted); font-size: .92rem; min-height: 2.8em; }
.price { margin: 6px 0 16px; }
.price .amount { font: 800 2.2rem var(--display); letter-spacing: -0.03em; }
.price .per { color: var(--muted); margin-left: 4px; }
.plan .checks { flex: 1; font-size: .93rem; }
.addons { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 0 32px; margin-top: 24px; }
.addon { padding: 18px 0; border-bottom: 1px solid var(--line); }
.addon p { color: var(--muted); margin: 0 0 6px; font-size: .95rem; }

/* ----- FAQ ----- */
.faq details { border-bottom: 1px solid var(--line); }
.faq summary { cursor: pointer; padding: 20px 36px 20px 0; font: 600 1.1rem var(--text); list-style: none; position: relative; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: '+'; position: absolute; right: 4px; top: 16px; font: 400 1.6rem var(--display); color: var(--muted); transition: transform .2s; }
.faq details[open] summary::after { transform: rotate(45deg); }
.faq details p { color: var(--ink-2); padding-bottom: 18px; max-width: 65ch; }

/* ----- CTA final ----- */
.cta-final { background: var(--ink); color: var(--paper); padding: 96px 0; }
.cta-final h2 { color: #fff; max-width: 18ch; }
.cta-final .lead { color: #bcd3e7; }
.cta-final .btn-signal { background: var(--brand-green); color: var(--ink); }
.cta-final .btn-signal:hover { background: #66e3c9; color: var(--ink); }

/* ----- Cartões de link (blog, guias) ----- */
.cards-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; }
.card-link, .post-card { display: flex; flex-direction: column; gap: 8px; padding: 22px 0; text-decoration: none; color: var(--ink); border-top: 2px solid var(--ink); }
.card-link:hover h3, .post-card:hover h3 { color: var(--receipt); }
.card-link p, .post-card p { color: var(--ink-2); margin: 0; }

/* ----- Documentos (legal, API, blog) ----- */
.doc-layout { display: grid; grid-template-columns: 220px minmax(0, 1fr); gap: 56px; align-items: start; }
.toc { position: sticky; top: 92px; display: flex; flex-direction: column; gap: 6px; font-size: .92rem; }
.toc p { color: var(--muted); margin-bottom: 6px; }
.toc a { color: var(--ink-2); text-decoration: none; padding: 3px 0; }
.toc a:hover { color: var(--receipt); }
.prose { max-width: 72ch; }
.prose h2 { font-size: 1.7rem; margin-top: 2em; max-width: none; }
.prose h3 { margin-top: 1.6em; }
.prose ul, .prose ol { padding-left: 1.3em; }
.prose li { margin: .35em 0; }
.prose blockquote { margin: 1.5em 0; padding: 4px 18px; border-left: 4px solid var(--brand-green); background: #fff; border-radius: 0 10px 10px 0; }
.prose pre { background: var(--ink); color: #dee9f3; padding: 16px 18px; border-radius: 12px; overflow-x: auto; }
.prose :not(pre) > code { background: var(--paper-2); padding: 2px 6px; border-radius: 6px; }
.table-wrap { overflow-x: auto; margin: 1.2em 0; }
table { border-collapse: collapse; width: 100%; font-size: .95rem; }
th, td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { font-weight: 600; color: var(--ink-2); }
.legal-note { margin-top: 3em; font-size: .9rem; color: var(--muted); border-top: 1px solid var(--line); padding-top: 1em; }
.endpoint { border-top: 1px solid var(--line); padding-top: 14px; margin-top: 18px; }
.method { display: inline-block; font: 600 .75rem var(--code); padding: 3px 8px; border-radius: 6px; color: #fff; background: var(--signal); }
.method.get { background: var(--receipt); }
.inline-cta { display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; margin-top: 3em; padding: 22px 24px; border-radius: var(--radius-bubble); border-top-right-radius: 4px; background: var(--bubble-out); }
.timeline article { border-left: 2px solid var(--line); padding: 0 0 28px 22px; }
.timeline time { color: var(--muted); font-size: .9rem; }

/* ----- Rodapé ----- */
.site-footer { background: #fff; border-top: 1px solid var(--line); padding: 56px 0 28px; font-size: .95rem; }
.footer-grid { display: grid; grid-template-columns: 1.4fr repeat(3, 1fr); gap: 32px; }
.footer-grid h4 { font: 600 .95rem var(--text); color: var(--ink); margin-bottom: 10px; }
.footer-grid a:not(.brand) { display: block; color: var(--ink-2); text-decoration: none; padding: 3px 0; }
.footer-grid a:not(.brand):hover { color: var(--receipt); }
.footer-bottom { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 10px; margin-top: 40px; padding-top: 20px; border-top: 1px solid var(--line); color: var(--muted); }

/* ----- Responsivo ----- */
@media (max-width: 960px) {
  .hero-inner, .split, .doc-layout { grid-template-columns: 1fr; gap: 36px; }
  .feature-columns, .cards-3 { grid-template-columns: 1fr 1fr; }
  .toc { position: static; flex-direction: row; flex-wrap: wrap; gap: 4px 14px; }
  .plans { grid-template-columns: 1fr 1fr; }
  .plan { border-bottom: 1px solid var(--line); }
}
@media (max-width: 760px) {
  body { font-size: 16px; }
  .main-nav, .header-cta { display: none; }
  .menu-toggle { display: block; margin-left: auto; }
  .site-header.open .main-nav, .site-header.open .header-cta { display: flex; }
  .site-header.open .header-inner { flex-wrap: wrap; height: auto; padding-bottom: 16px; }
  .site-header.open .main-nav { order: 3; flex-direction: column; width: 100%; }
  .site-header.open .header-cta { order: 4; width: 100%; }
  .site-header.open .menu-toggle span:first-child { transform: translateY(4.5px) rotate(45deg); }
  .site-header.open .menu-toggle span:last-child { transform: translateY(-4.5px) rotate(-45deg); }
  .wrap { padding: 0 16px; }
  .section { padding: 64px 0; }
  .hero { padding-top: 28px; }
  .hero-thread { padding: 16px; border-radius: 20px; }
  .steps, .feature-grid, .feature-columns, .cards-3, .plans, .footer-grid { grid-template-columns: 1fr; }
  .plan { border-right: 0; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .js .hero-thread .msg { opacity: 1; transform: none; transition: none; }
  * { transition-duration: 0s !important; }
}