/* Mesma identidade visual de reisontesti.com.br: papel/tinta, Newsreader (títulos) + Inter (texto),
   linhas finas, links sublinhados e rótulos em caixa-alta. Segue o tema claro/escuro do sistema. */
:root {
  --paper: #fcfcfa;
  --paper-raised: #f4f4f0;
  --ink: #17170f;
  --ink-muted: #6d6d64;
  --ink-faint: #9a9a90;
  --rule: #e2e2db;
  --ok: #1f6b3a;
  --err: #a63a2a;
  --font-sans: "Inter", ui-sans-serif, system-ui, sans-serif;
  --font-serif: "Newsreader", Georgia, "Times New Roman", serif;
}
@media (prefers-color-scheme: dark) {
  :root {
    --paper: #0d0d0c;
    --paper-raised: #161614;
    --ink: #ecece6;
    --ink-muted: #93938a;
    --ink-faint: #63635c;
    --rule: #262622;
    --ok: #7cc995;
    --err: #e59a8c;
  }
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.625;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
p a, .legal a { text-decoration: underline; text-decoration-thickness: 1px; text-underline-offset: 3px; text-decoration-color: var(--ink-faint); }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
:focus-visible { outline: 2px solid var(--ink); outline-offset: 3px; }

.container { width: 100%; max-width: 58rem; margin: 0 auto; padding: 0 1.5rem; }

h1, h2, h3 { font-family: var(--font-serif); font-weight: 400; margin: 0; }
h1 { font-size: clamp(2.6rem, 8vw, 4.5rem); line-height: 1.02; letter-spacing: -.035em; }
h2 { font-size: clamp(1.75rem, 4.5vw, 2.25rem); line-height: 1.2; letter-spacing: -.02em; margin-bottom: 2.5rem; max-width: 38rem; }
h3 { font-size: 1.375rem; line-height: 1.25; letter-spacing: -.01em; margin-bottom: .6rem; }
.eyebrow { display: block; margin-bottom: 1rem; font-size: .6875rem; text-transform: uppercase; letter-spacing: .18em; color: var(--ink-faint); }

/* Cabeçalho */
.site-header { position: sticky; top: 0; z-index: 50; border-bottom: 1px solid var(--rule); background: color-mix(in srgb, var(--paper) 85%, transparent); backdrop-filter: blur(12px); }
.header-row { display: flex; align-items: center; justify-content: space-between; gap: 1.5rem; height: 4rem; }
.brand { font-family: var(--font-serif); font-size: 1.125rem; letter-spacing: -.01em; }
.site-nav { display: none; }
.site-nav ul { display: flex; gap: 1.5rem; list-style: none; margin: 0; padding: 0; }
.site-nav a, .site-nav-mobile a { font-size: .9375rem; color: var(--ink-muted); transition: color .15s; white-space: nowrap; }
.site-nav a:hover, .site-nav-mobile a:hover { color: var(--ink); }
.site-nav-mobile { border-top: 1px solid var(--rule); overflow-x: auto; scrollbar-width: none; }
.site-nav-mobile::-webkit-scrollbar { display: none; }
.site-nav-mobile ul { display: flex; gap: 1.5rem; list-style: none; margin: 0; padding: .7rem 1.5rem; }
@media (min-width: 640px) { .site-nav { display: block; } .site-nav-mobile { display: none; } }

/* Seções */
.section { border-top: 1px solid var(--rule); padding: 5rem 0; }
.hero { border-top: 0; padding: 5rem 0 6rem; }
.hero-sub { font-family: var(--font-serif); font-size: clamp(1.25rem, 3.4vw, 1.625rem); line-height: 1.45; max-width: 36rem; margin: 2rem 0 2.5rem; }
.hero-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 1.5rem 2rem; }

/* Botões: estilo de link sublinhado do site; a variante sólida é usada no envio do formulário */
.cta-button {
  display: inline-flex; align-items: center; gap: .5rem;
  font: inherit; font-size: .9375rem; color: var(--ink);
  background: none; border: 0; border-bottom: 1px solid var(--ink); border-radius: 0;
  padding: 0 0 .25rem; cursor: pointer; transition: opacity .2s;
}
.cta-button::after { content: "→"; }
.cta-button:hover { opacity: .6; }
.cta-button:disabled { opacity: .5; cursor: wait; }
.cta-button.solid { background: var(--ink); color: var(--paper); border: 1px solid var(--ink); padding: .85rem 1.4rem; width: 100%; justify-content: center; }
.cta-button.solid::after { content: ""; }
.link-quiet { font-size: .9375rem; color: var(--ink-muted); transition: color .15s; }
.link-quiet:hover { color: var(--ink); }

/* Problema e benefícios: lista numerada */
.numbered { list-style: none; margin: 0; padding: 0; display: grid; gap: 2.5rem; counter-reset: n; }
.numbered li { counter-increment: n; border-top: 1px solid var(--rule); padding-top: 1.25rem; }
.numbered li::before { content: "0" counter(n); display: block; margin-bottom: .75rem; font-size: .6875rem; letter-spacing: .18em; color: var(--ink-faint); }
.numbered p { margin: 0; color: var(--ink-muted); font-size: .9375rem; max-width: 22rem; }
@media (min-width: 760px) { .numbered { grid-template-columns: repeat(3, 1fr); gap: 2rem; } }

/* Tabelas */
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; min-width: 30rem; font-size: .9375rem; }
th, td { text-align: left; padding: 1.1rem 1rem 1.1rem 0; border-bottom: 1px solid var(--rule); vertical-align: top; }
thead th { font-size: .6875rem; font-weight: 400; text-transform: uppercase; letter-spacing: .18em; color: var(--ink-faint); border-bottom-color: var(--ink); }
tbody th { font-family: var(--font-serif); font-weight: 400; font-size: 1.25rem; white-space: nowrap; }
td { color: var(--ink-muted); }
td.num, th.num { text-align: right; padding-right: 0; white-space: nowrap; }
td strong { color: var(--ink); font-weight: 500; }

.benefits { list-style: none; margin: 0; padding: 0; max-width: 38rem; }
.benefits li { border-top: 1px solid var(--rule); padding: 1.25rem 0; color: var(--ink-muted); }
.benefits li:last-child { border-bottom: 1px solid var(--rule); }
.benefits strong { display: block; font-family: var(--font-serif); font-weight: 400; font-size: 1.375rem; color: var(--ink); margin-bottom: .2rem; }

/* Depoimentos */
.quotes { display: grid; gap: 3rem; }
blockquote { margin: 0; }
blockquote p { font-family: var(--font-serif); font-size: 1.375rem; line-height: 1.4; letter-spacing: -.01em; margin: 0 0 1rem; }
blockquote footer { font-size: .875rem; color: var(--ink-muted); }
@media (min-width: 760px) { .quotes { grid-template-columns: 1fr 1fr; gap: 4rem; } }

/* Formulário */
.contact { display: grid; gap: 2.5rem; }
.contact-intro p { margin: 0; color: var(--ink-muted); max-width: 26rem; }
form { background: var(--paper-raised); border: 1px solid var(--rule); padding: 1.75rem; }
.field { margin-bottom: 1.25rem; }
label { display: block; margin-bottom: .4rem; font-size: .875rem; }
label small { color: var(--ink-faint); font-size: .8125rem; }
.form-control {
  width: 100%; font: inherit; font-size: 1rem; color: var(--ink);
  background: var(--paper); border: 1px solid var(--rule); border-radius: 0; padding: .75rem .85rem;
  transition: border-color .15s;
}
.form-control:hover { border-color: var(--ink-faint); }
.form-control:focus-visible { outline: 0; border-color: var(--ink); }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.legal { margin: 0 0 1.25rem; font-size: .8125rem; color: var(--ink-muted); }
.status { display: none; margin: 1.25rem 0 0; padding: .85rem 1rem; border: 1px solid var(--rule); background: var(--paper); font-size: .9375rem; }
.status.show { display: block; }
.status.success { border-color: var(--ok); color: var(--ok); }
.status.error { border-color: var(--err); color: var(--err); }
@media (min-width: 860px) { .contact { grid-template-columns: 1fr 1.1fr; gap: 5rem; align-items: start; } }

/* Rodapé */
.site-footer { margin-top: 2rem; border-top: 1px solid var(--rule); padding: 3.5rem 0; font-size: .9375rem; }
.footer-grid { display: grid; gap: 2.5rem; }
.footer-brand { font-family: var(--font-serif); font-size: 1.125rem; margin: 0 0 .5rem; }
.site-footer p { margin: 0; color: var(--ink-muted); max-width: 20rem; }
.site-footer h3 { font-family: var(--font-sans); font-size: .6875rem; text-transform: uppercase; letter-spacing: .18em; color: var(--ink-faint); margin: 0 0 1rem; }
.site-footer ul { list-style: none; margin: 0; padding: 0; display: grid; gap: .5rem; }
.site-footer ul a { color: var(--ink-muted); transition: color .15s; }
.site-footer ul a:hover { color: var(--ink); }
.footer-bottom { margin-top: 3rem; padding-top: 1.5rem; border-top: 1px solid var(--rule); display: flex; flex-wrap: wrap; gap: .75rem 2rem; justify-content: space-between; font-size: .8125rem; color: var(--ink-faint); }
.footer-bottom a:hover { color: var(--ink); }
@media (min-width: 760px) { .footer-grid { grid-template-columns: 1.4fr 1fr 1fr; } }

@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } * { transition: none !important; } }