:root {
  --bg: #fbfaf7;
  --surface: #ffffff;
  --ink: #15171c;
  --muted: #5d6470;
  --line: #e7e4dd;
  --brand: #1f8a5b;
  --brand-ink: #ffffff;
  --brand-soft: #e5f4ec;
  --accent: #f2b33d;
  --radius: 18px;
  --max: 1120px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1114;
    --surface: #171a1f;
    --ink: #eceef1;
    --muted: #a1a8b3;
    --line: #2a2f37;
    --brand: #35b77d;
    --brand-ink: #06140d;
    --brand-soft: #16301f;
  }
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; }
img, svg { display: block; max-width: 100%; }

.wrap { max-width: var(--max); margin: 0 auto; padding: 0 20px; }

/* Cabeçalho */
.top {
  position: sticky; top: 0; z-index: 10;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.top .wrap { display: flex; align-items: center; gap: 24px; height: 68px; }
.logo { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 18px; text-decoration: none; letter-spacing: -0.01em; }
.logo-mark { width: 30px; height: 30px; }
.nav { display: flex; gap: 22px; margin-left: auto; font-size: 15px; }
.nav a { text-decoration: none; color: var(--muted); }
.nav a:hover { color: var(--ink); }

.btn {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 13px 22px; border-radius: 999px;
  background: var(--brand); color: var(--brand-ink);
  font-weight: 600; text-decoration: none; font-size: 16px;
  transition: transform .15s ease, opacity .15s ease;
}
.btn:hover { transform: translateY(-1px); opacity: .95; }
.btn-ghost { background: transparent; color: var(--ink); border: 1px solid var(--line); }
.btn svg { width: 20px; height: 20px; }

/* Hero */
.hero { padding: 88px 0 72px; }
.hero .wrap { display: grid; grid-template-columns: 1.15fr .85fr; gap: 56px; align-items: center; }
.eyebrow {
  display: inline-block; padding: 6px 12px; border-radius: 999px;
  background: var(--brand-soft); color: var(--brand); font-size: 14px; font-weight: 600;
}
h1 { font-size: clamp(36px, 5vw, 56px); line-height: 1.08; letter-spacing: -0.03em; margin: 18px 0 18px; }
h1 em { font-style: normal; color: var(--brand); }
.lead { font-size: 19px; color: var(--muted); max-width: 34em; margin: 0 0 30px; }
.cta { display: flex; flex-wrap: wrap; gap: 12px; }

.chat {
  background: var(--surface); border: 1px solid var(--line); border-radius: 24px;
  padding: 20px; box-shadow: 0 30px 60px -30px rgba(15, 30, 20, .25);
}
.chat-head { display: flex; align-items: center; gap: 10px; padding-bottom: 14px; border-bottom: 1px solid var(--line); margin-bottom: 14px; font-size: 14px; }
.chat-head .dot { width: 36px; height: 36px; border-radius: 50%; background: var(--brand-soft); display: grid; place-items: center; color: var(--brand); font-weight: 700; }
.chat-head small { display: block; color: var(--muted); font-size: 12px; }
.msg { max-width: 85%; padding: 10px 14px; border-radius: 16px; font-size: 15px; margin: 8px 0; }
.msg.in { background: var(--bg); border: 1px solid var(--line); border-bottom-left-radius: 4px; }
.msg.out { background: var(--brand-soft); margin-left: auto; border-bottom-right-radius: 4px; }
.tag { display: inline-block; margin-top: 12px; font-size: 12px; padding: 4px 10px; border-radius: 999px; border: 1px dashed var(--brand); color: var(--brand); }

/* Seções */
section { padding: 72px 0; }
.section-title { font-size: clamp(28px, 3.4vw, 38px); letter-spacing: -0.02em; line-height: 1.15; margin: 0 0 12px; }
.section-sub { color: var(--muted); max-width: 40em; margin: 0 0 40px; }

.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 28px; }
.card .ico { width: 44px; height: 44px; border-radius: 12px; background: var(--brand-soft); color: var(--brand); display: grid; place-items: center; margin-bottom: 18px; }
.card .ico svg { width: 24px; height: 24px; }
.card h3 { margin: 0 0 8px; font-size: 20px; letter-spacing: -0.01em; }
.card p { margin: 0; color: var(--muted); font-size: 16px; }
.card ul { margin: 14px 0 0; padding-left: 18px; color: var(--muted); font-size: 15px; }

.band { background: var(--surface); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; counter-reset: s; }
.step { counter-increment: s; }
.step::before {
  content: counter(s); display: grid; place-items: center;
  width: 38px; height: 38px; border-radius: 50%; background: var(--ink); color: var(--bg);
  font-weight: 700; margin-bottom: 14px;
}
.step h3 { margin: 0 0 6px; font-size: 19px; }
.step p { margin: 0; color: var(--muted); font-size: 16px; }

.who { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }

.final { text-align: center; }
.final .section-sub { margin-left: auto; margin-right: auto; }
.final .cta { justify-content: center; }

/* Rodapé */
footer { border-top: 1px solid var(--line); padding: 40px 0; font-size: 14px; color: var(--muted); }
footer .wrap { display: flex; flex-wrap: wrap; gap: 16px 32px; justify-content: space-between; }
footer nav { display: flex; flex-wrap: wrap; gap: 18px; }
footer a { text-decoration: none; }
footer a:hover { color: var(--ink); }

/* Páginas legais */
.doc { max-width: 760px; margin: 0 auto; padding: 56px 20px 80px; }
.doc h1 { font-size: clamp(30px, 4vw, 40px); margin-top: 0; }
.doc h2 { font-size: 21px; margin: 36px 0 8px; letter-spacing: -0.01em; }
.doc p, .doc li { color: var(--ink); }
.doc .updated { color: var(--muted); font-size: 15px; }
.doc table { width: 100%; border-collapse: collapse; font-size: 15px; margin: 12px 0; }
.doc th, .doc td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--line); vertical-align: top; }

@media (max-width: 860px) {
  .hero { padding: 56px 0 40px; }
  .hero .wrap, .cards, .steps, .who { grid-template-columns: 1fr; }
  .nav { display: none; }
  section { padding: 56px 0; }
}