:root {
  --bg: #f6f7f4;
  --surface: #ffffff;
  --border: #e2e5df;
  --text: #17201b;
  --text-2: #46514a;
  --muted: #6f7a72;
  --primary: #1f8a5b;
  --primary-ink: #ffffff;
  --bolha: #dcf5e6;
  --radius: 14px;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #101512;
    --surface: #18201b;
    --border: #2a332d;
    --text: #e7ece8;
    --text-2: #b3bdb6;
    --muted: #87928a;
    --primary: #4cc38a;
    --primary-ink: #0b130e;
    --bolha: #1d3a2a;
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: #101512; --surface: #18201b; --border: #2a332d; --text: #e7ece8; --text-2: #b3bdb6;
  --muted: #87928a; --primary: #4cc38a; --primary-ink: #0b130e; --bolha: #1d3a2a; color-scheme: dark;
}

* { box-sizing: border-box; }
body {
  margin: 0; background: var(--bg); color: var(--text); line-height: 1.55;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}
a { color: var(--primary); }
.largura { max-width: 1080px; margin: 0 auto; padding: 0 16px; }

/* Topo */
.topo { padding: 18px 0; }
.topo .largura { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.logo { font-weight: 800; font-size: 1.4rem; letter-spacing: -.02em; color: var(--text); text-decoration: none; }
.logo span { color: var(--primary); }
.botao {
  display: inline-block; padding: 12px 20px; border-radius: 999px; font-weight: 600; text-decoration: none;
  background: var(--primary); color: var(--primary-ink); border: 1px solid var(--primary);
}
.botao.secundario { background: transparent; color: var(--text); border-color: var(--border); }
.botao.pequeno { padding: 8px 14px; font-size: .9rem; }

/* Abertura */
.abertura { display: grid; gap: 32px; padding-top: 32px; padding-bottom: 56px; align-items: center; }
.abertura h1 { font-size: clamp(2rem, 6vw, 3.2rem); line-height: 1.1; letter-spacing: -.03em; margin: 0 0 16px; }
.abertura p { font-size: 1.1rem; color: var(--text-2); margin: 0 0 24px; max-width: 34em; }
.acoes { display: flex; flex-wrap: wrap; gap: 10px; }

/* Conversa de exemplo */
.celular {
  background: var(--surface); border: 1px solid var(--border); border-radius: 24px; padding: 18px;
  display: grid; gap: 10px; max-width: 380px; width: 100%; justify-self: center; box-shadow: 0 10px 30px rgb(0 0 0 / .06);
}
.bolha { padding: 9px 13px; border-radius: 14px; font-size: .93rem; max-width: 88%; }
.bolha.eu { justify-self: end; background: var(--bolha); border-bottom-right-radius: 4px; }
.bolha.ele { justify-self: start; background: var(--bg); border: 1px solid var(--border); border-bottom-left-radius: 4px; }

/* Seções */
section { padding: 48px 0; }
section h2 { font-size: clamp(1.5rem, 4vw, 2rem); letter-spacing: -.02em; margin: 0 0 8px; }
.intro { color: var(--text-2); margin: 0 0 28px; }
.grade { display: grid; gap: 16px; }
.cartao { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 20px; }
.cartao h3 { margin: 0 0 6px; font-size: 1.05rem; }
.cartao p { margin: 0; color: var(--text-2); font-size: .95rem; }
.passo { font-weight: 800; color: var(--primary); font-size: .85rem; letter-spacing: .06em; text-transform: uppercase; }

/* Planos */
.planos { display: grid; gap: 16px; }
.plano ul { padding-left: 18px; margin: 12px 0 0; color: var(--text-2); }
.plano li { margin: 4px 0; }
.plano.destaque { border-color: var(--primary); }
.preco { font-size: 1.6rem; font-weight: 800; margin: 4px 0 0; }
.preco small { font-size: .9rem; font-weight: 400; color: var(--muted); }

/* Perguntas */
details { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 14px 18px; }
details + details { margin-top: 10px; }
summary { cursor: pointer; font-weight: 600; }
details p { color: var(--text-2); margin: 10px 0 0; }

/* Rodapé */
.rodape { border-top: 1px solid var(--border); padding: 24px 0 40px; color: var(--muted); font-size: .9rem; }
.rodape .largura { display: flex; flex-wrap: wrap; gap: 8px 20px; justify-content: space-between; }

/* Texto longo (privacidade) */
.texto { max-width: 760px; padding-bottom: 48px; }
.texto h1 { font-size: 2rem; letter-spacing: -.02em; margin: 16px 0 4px; }
.texto h2 { font-size: 1.15rem; margin: 28px 0 6px; }
.texto p, .texto li { color: var(--text-2); }

@media (min-width: 760px) {
  .abertura { grid-template-columns: 1.2fr 1fr; padding-top: 56px; padding-bottom: 80px; }
  .grade.tres { grid-template-columns: repeat(3, 1fr); }
  .grade.duas { grid-template-columns: repeat(2, 1fr); }
  .planos { grid-template-columns: 1fr 1fr; }
}