/* =========================================================
   ODuo — landing page de teste
   Mobile-first. Sem framework, sem CDN.
   Assinatura visual: "duo rule" — a barra de dois tons
   (coral / azul) que aparece em eyebrow, marca, cards e CTA.
   ========================================================= */

/* ---------- 1. Tokens ---------- */
:root {
  --duo-a: #FF5A36;
  --duo-b: #2F6BFF;
  --duo-grad: linear-gradient(90deg, var(--duo-a) 0 50%, var(--duo-b) 50% 100%);

  /* Verde oficial do WhatsApp — usado só no CTA de WhatsApp.
     É cor do canal, não da marca: não entra em nenhum outro elemento. */
  --whats:       #25D366;
  --whats-hover: #1EBE5B;

  --ink:        #0E1116;
  --ink-2:      #1A2029;
  --ink-3:      #39424F;
  --muted:      #6B7686;
  --line:       #E2E6EC;
  --paper:      #FFFFFF;
  --paper-2:    #F5F7FA;

  --warn-bg:    #FFF4E8;
  --warn-line:  #F0A45C;
  --warn-ink:   #8A4B0B;

  --font: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto,
          "Helvetica Neue", Arial, "Noto Sans", sans-serif;

  --step--1: clamp(.82rem, .8rem + .1vw, .88rem);
  --step-0:  clamp(1rem, .97rem + .15vw, 1.06rem);
  --step-1:  clamp(1.15rem, 1.08rem + .35vw, 1.35rem);
  --step-2:  clamp(1.45rem, 1.3rem + .75vw, 1.9rem);
  --step-3:  clamp(1.85rem, 1.55rem + 1.5vw, 2.8rem);
  --step-4:  clamp(2.3rem, 1.7rem + 3vw, 4.2rem);

  --gap:   1rem;
  --gap-2: 1.5rem;
  --gap-3: 2.5rem;
  --pad-y: clamp(3.5rem, 2.5rem + 4vw, 6.5rem);

  --r:    14px;
  --r-sm: 9px;

  --shadow:   0 1px 2px rgba(14,17,22,.05), 0 8px 24px -12px rgba(14,17,22,.18);
  --shadow-2: 0 2px 4px rgba(14,17,22,.06), 0 18px 40px -18px rgba(14,17,22,.28);

  --header-h: 62px;
}

/* ---------- 2. Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + 12px);
}

body {
  font-family: var(--font);
  font-size: var(--step-0);
  line-height: 1.6;
  color: var(--ink-2);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img, svg { display: block; max-width: 100%; }
button, input, textarea { font: inherit; color: inherit; }
ul, ol { list-style: none; padding: 0; }
a { color: inherit; }

h1, h2, h3 {
  color: var(--ink);
  line-height: 1.12;
  letter-spacing: -.02em;
  text-wrap: balance;
  font-weight: 700;
}
p { text-wrap: pretty; }

:focus-visible {
  outline: 3px solid var(--duo-b);
  outline-offset: 3px;
  border-radius: 4px;
}

.sr-only {
  position: absolute; width: 1px; height: 1px;
  padding: 0; overflow: hidden; clip: rect(0 0 0 0);
  white-space: nowrap; border: 0;
}

.skip-link {
  position: absolute; left: 8px; top: -100px; z-index: 200;
  background: var(--ink); color: #fff;
  padding: .7rem 1rem; border-radius: 0 0 var(--r-sm) var(--r-sm);
  text-decoration: none; font-weight: 600;
  transition: top .15s ease;
}
.skip-link:focus { top: 0; }

/* ---------- 3. Layout ---------- */
.wrap {
  width: 100%;
  max-width: 1140px;
  margin-inline: auto;
  padding-inline: clamp(1.1rem, .6rem + 2vw, 2rem);
}
.wrap--narrow { max-width: 780px; }

.section { padding-block: var(--pad-y); }
.section--alt { background: var(--paper-2); border-block: 1px solid var(--line); }

.section__head { max-width: 60ch; margin-bottom: var(--gap-3); }
.section__title { font-size: var(--step-3); }
.section__lead { margin-top: .85rem; color: var(--muted); font-size: var(--step-1); }

/* ---------- 4. Assinatura: eyebrow + duo rule ---------- */
.eyebrow {
  display: flex; align-items: center; gap: .7rem;
  font-size: var(--step--1);
  font-weight: 700;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--ink-3);
  margin-bottom: .9rem;
}
.rule {
  display: inline-block;
  width: 44px; height: 4px;
  border-radius: 2px;
  background: var(--duo-grad);
  flex: none;
}

/* ---------- 5. Marcadores de pendência ---------- */
.ph {
  display: inline;
  background: var(--warn-bg);
  color: var(--warn-ink) !important;
  border: 1px dashed var(--warn-line);
  border-radius: 5px;
  padding: .05em .4em;
  font-weight: 600;
  font-size: .92em;
  word-break: break-word;
  text-decoration: none;
}
a.ph { text-decoration: underline; text-underline-offset: 2px; }

[data-ex] {
  position: relative;
  border-left: 3px solid var(--warn-line);
  padding-left: .9rem;
}
[data-ex]::after {
  content: "conteúdo de exemplo";
  display: block;
  margin-top: .35rem;
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--warn-ink);
}

.testbar {
  background: var(--warn-bg);
  border-bottom: 1px solid var(--warn-line);
  color: var(--warn-ink);
  font-size: var(--step--1);
  line-height: 1.5;
  padding: .6rem clamp(1.1rem, .6rem + 2vw, 2rem);
  text-align: center;
}
.testbar code { font-size: .95em; }
.testbar__chip {
  display: inline-block;
  border: 1px dashed var(--warn-line);
  border-radius: 4px;
  padding: 0 .35em;
  font-weight: 600;
}
.testbar__chip--ex {
  border-style: solid;
  border-left-width: 3px;
  text-transform: uppercase;
  font-size: .85em;
  letter-spacing: .06em;
}

/* ---------- 6. Header ---------- */
.header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255,255,255,.92);
  backdrop-filter: saturate(150%) blur(10px);
  border-bottom: 1px solid var(--line);
}
.header__inner {
  min-height: var(--header-h);
  display: flex; align-items: center; gap: var(--gap);
}

.brand {
  display: inline-flex; align-items: center; gap: .55rem;
  text-decoration: none; font-weight: 800;
  letter-spacing: -.02em; color: var(--ink);
  margin-right: auto;
}
.brand__mark { display: block; flex: none; }
.brand__name { font-size: 1.22rem; }

.navtoggle {
  width: 42px; height: 42px;
  display: grid; place-items: center;
  background: transparent; border: 1px solid var(--line);
  border-radius: var(--r-sm); cursor: pointer;
}
.navtoggle__bars { display: grid; gap: 4px; width: 18px; }
.navtoggle__bars i {
  height: 2px; background: var(--ink); border-radius: 2px;
  transition: transform .2s ease, opacity .2s ease;
}
.navtoggle[aria-expanded="true"] .navtoggle__bars i:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.navtoggle[aria-expanded="true"] .navtoggle__bars i:nth-child(2) { opacity: 0; }
.navtoggle[aria-expanded="true"] .navtoggle__bars i:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

.nav {
  position: absolute; left: 0; right: 0; top: 100%;
  background: var(--paper);
  border-bottom: 1px solid var(--line);
  box-shadow: var(--shadow);
  padding: .5rem clamp(1.1rem, .6rem + 2vw, 2rem) 1.2rem;
  display: none;
}
.nav.is-open { display: block; }
.nav__list { display: grid; }
.nav__list a {
  display: block; padding: .8rem 0;
  text-decoration: none; font-weight: 600;
  border-bottom: 1px solid var(--line);
}
.nav__list a.is-active { color: var(--duo-b); }
.nav__cta { margin-top: 1rem; width: 100%; }

/* ---------- 7. Botões ---------- */
.btn {
  --btn-bg: var(--ink);
  --btn-fg: #fff;
  display: inline-flex; align-items: center; justify-content: center;
  gap: .5rem;
  padding: .85rem 1.4rem;
  background: var(--btn-bg); color: var(--btn-fg);
  border: 1px solid transparent; border-radius: 999px;
  font-weight: 650; text-decoration: none;
  cursor: pointer;
  transition: transform .15s ease, box-shadow .2s ease, background-color .2s ease;
}
.btn:hover { transform: translateY(-2px); box-shadow: var(--shadow-2); }
.btn:active { transform: translateY(0); }
.btn--sm { padding: .6rem 1.05rem; font-size: var(--step--1); }
.btn--block { width: 100%; }

.btn--primary { position: relative; overflow: hidden; }
.btn--primary::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: 0;
  height: 3px; background: var(--duo-grad);
}

.btn--ghost {
  --btn-bg: transparent;
  --btn-fg: var(--ink);
  border-color: var(--line);
}
.btn--ghost:hover { --btn-bg: var(--paper-2); }

/* CTA de WhatsApp: verde do canal, texto escuro para contraste AA. */
.btn--whats {
  --btn-bg: var(--whats);
  --btn-fg: var(--ink);
}
.btn--whats:hover { --btn-bg: var(--whats-hover); }

.ico { flex: none; }

/* ---------- 8. Hero ---------- */
.hero {
  position: relative;
  overflow: hidden;
  padding-block: clamp(3rem, 2rem + 6vw, 6rem) var(--pad-y);
  background:
    radial-gradient(60% 55% at 8% 0%, rgba(255,90,54,.10), transparent 65%),
    radial-gradient(55% 50% at 96% 12%, rgba(47,107,255,.12), transparent 65%),
    var(--paper);
}
.hero::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: 0;
  height: 5px; background: var(--duo-grad);
}
.hero__ghost {
  position: absolute;
  right: -.18em; bottom: -.34em;
  font-size: clamp(16rem, 42vw, 30rem);
  font-weight: 800; line-height: .8;
  color: transparent;
  -webkit-text-stroke: 2px rgba(14,17,22,.05);
  pointer-events: none; user-select: none;
}
.hero__inner { position: relative; z-index: 1; }
.hero__title { font-size: var(--step-4); max-width: 16ch; }
.hero__lead { margin-top: 1.15rem; font-size: var(--step-1); color: var(--ink-3); max-width: 46ch; }
.hero__note { margin-top: 1.25rem; max-width: 52ch; color: var(--muted); font-size: var(--step--1); }

.hero__actions {
  margin-top: 1.8rem;
  display: flex; flex-wrap: wrap; gap: .75rem;
}

.hero__facts {
  margin-top: 2.5rem;
  display: grid; gap: .9rem;
  border-top: 1px solid var(--line);
  padding-top: 1.5rem;
}
.hero__facts li { display: grid; gap: .3rem; }
.hero__facts span {
  font-size: .72rem; font-weight: 700;
  letter-spacing: .12em; text-transform: uppercase;
  color: var(--muted);
}
.hero__facts strong { font-weight: 600; }

/* ---------- 9. Cards ---------- */
.cards { display: grid; gap: var(--gap-2); }
.card {
  position: relative;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--r);
  padding: 1.6rem 1.4rem;
  box-shadow: var(--shadow);
  overflow: hidden;
  transition: transform .2s ease, box-shadow .2s ease;
}
.card::before {
  content: ""; position: absolute; inset: 0 0 auto 0;
  height: 4px; background: var(--duo-grad);
  transform: scaleX(0); transform-origin: left;
  transition: transform .3s ease;
}
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow-2); }
.card:hover::before { transform: scaleX(1); }
.card__num {
  display: block; font-size: .8rem; font-weight: 800;
  letter-spacing: .1em; color: var(--duo-a); margin-bottom: .7rem;
}
.card__title { font-size: var(--step-1); }
.card__text { margin-top: .6rem; color: var(--muted); }

/* ---------- 10. Steps ---------- */
.steps { display: grid; gap: var(--gap-2); counter-reset: s; }
.step {
  position: relative;
  padding-left: 3.4rem;
}
.step__n {
  position: absolute; left: 0; top: 0;
  width: 2.4rem; height: 2.4rem;
  display: grid; place-items: center;
  border-radius: 50%;
  background: var(--ink); color: #fff;
  font-weight: 700; font-size: .95rem;
}
.step__title { font-size: var(--step-1); }
.step__text { margin-top: .4rem; color: var(--muted); }
.steps__note {
  margin-top: var(--gap-3);
  padding-top: 1.2rem;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: var(--step--1);
}

/* ---------- 11. Galeria / slots pendentes ---------- */
.gallery { display: grid; gap: var(--gap-2); }
.slot__box {
  aspect-ratio: 4 / 3;
  display: grid; place-content: center; justify-items: center; gap: .7rem;
  border: 2px dashed var(--warn-line);
  border-radius: var(--r);
  background:
    repeating-linear-gradient(45deg,
      rgba(240,164,92,.06) 0 10px,
      transparent 10px 20px),
    var(--warn-bg);
  color: var(--warn-ink);
  padding: 1rem;
  text-align: center;
}
.slot__tag {
  font-size: var(--step--1); font-weight: 700;
  border: 1px dashed var(--warn-line);
  border-radius: 5px; padding: .15em .5em;
}
.slot__cap { margin-top: .6rem; font-size: var(--step--1); color: var(--muted); }

/* ---------- 12. FAQ ---------- */
.faq { border-top: 1px solid var(--line); }
.faq__item { border-bottom: 1px solid var(--line); }
.faq__q {
  width: 100%;
  display: flex; align-items: center; justify-content: space-between; gap: 1rem;
  padding: 1.15rem 0;
  background: none; border: 0; cursor: pointer;
  text-align: left; font-weight: 650; font-size: var(--step-0);
  color: var(--ink);
}
.faq__ico {
  position: relative; flex: none;
  width: 20px; height: 20px;
}
.faq__ico::before, .faq__ico::after {
  content: ""; position: absolute; inset: 50% 0 auto 0;
  height: 2px; border-radius: 2px; background: var(--ink);
  transform: translateY(-50%);
  transition: transform .25s ease, background-color .25s ease;
}
.faq__ico::after { transform: translateY(-50%) rotate(90deg); }
.faq__q[aria-expanded="true"] .faq__ico::before { background: var(--duo-a); }
.faq__q[aria-expanded="true"] .faq__ico::after { transform: translateY(-50%) rotate(0); background: var(--duo-a); }
.faq__a { padding: 0 0 1.2rem; color: var(--muted); max-width: 62ch; }

/* ---------- 13. Contato + form ---------- */
.section--contato { background: var(--ink); color: #C7CFDA; }
.section--contato .section__title,
.section--contato .contato__col h2 { color: #fff; }
.section--contato .eyebrow { color: #9AA6B6; }
.section--contato .section__lead { color: #9AA6B6; }

.contato { display: grid; gap: var(--gap-3); }
.contato__list { margin-top: var(--gap-2); display: grid; gap: 1.1rem; }
.contato__list li { display: grid; gap: .25rem; }
.contato__rot {
  font-size: .72rem; font-weight: 700;
  letter-spacing: .12em; text-transform: uppercase;
  color: #8290A2;
}

.form {
  background: var(--paper);
  border-radius: var(--r);
  padding: 1.4rem;
  box-shadow: var(--shadow-2);
  display: grid; gap: 1.05rem;
}
.form__aviso {
  background: var(--warn-bg);
  border: 1px dashed var(--warn-line);
  color: var(--warn-ink);
  border-radius: var(--r-sm);
  padding: .7rem .8rem;
  font-size: var(--step--1);
}
.form__aviso code { word-break: break-all; }

.field { display: grid; gap: .38rem; }
.field label { font-weight: 650; font-size: var(--step--1); color: var(--ink); }
.field__opt { font-weight: 400; color: var(--muted); }
.field input, .field textarea {
  width: 100%;
  padding: .78rem .85rem;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--r-sm);
  transition: border-color .15s ease, box-shadow .15s ease;
}
.field input:focus, .field textarea:focus {
  outline: none;
  border-color: var(--duo-b);
  box-shadow: 0 0 0 3px rgba(47,107,255,.15);
}
.field textarea { resize: vertical; min-height: 110px; }
.field.is-invalid input, .field.is-invalid textarea { border-color: #D93B3B; }
.field__erro { color: #B32020; font-size: var(--step--1); font-weight: 600; }

.form__status { font-size: var(--step--1); font-weight: 600; min-height: 1.2em; }
.form__status.is-warn { color: var(--warn-ink); }

/* ---------- 14. Footer ---------- */
.footer {
  background: var(--ink);
  color: #8B98A9;
  border-top: 5px solid transparent;
  border-image: var(--duo-grad) 1;
  padding-block: var(--pad-y) 2rem;
  font-size: var(--step--1);
}
.footer__inner { display: grid; gap: var(--gap-2); }
.footer__brand { display: inline-flex; align-items: center; gap: .5rem; color: #fff; font-weight: 800; }
.footer__nav { display: flex; flex-wrap: wrap; gap: .4rem 1.2rem; }
.footer__nav a { text-decoration: none; }
.footer__nav a:hover { color: #fff; }
.footer__dados { display: grid; gap: .5rem; }
.footer__social { display: flex; gap: 1.2rem; }
.footer__copy {
  border-top: 1px solid rgba(255,255,255,.12);
  padding-top: 1.2rem; margin-top: .5rem;
  color: #6E7A8B;
}

/* ---------- 15. Botão flutuante WhatsApp ---------- */
.whats {
  position: fixed;
  right: 1rem; bottom: 1rem; z-index: 90;
  width: 54px; height: 54px;
  display: grid; place-items: center;
  border-radius: 50%;
  background: var(--whats); color: var(--ink);
  box-shadow: var(--shadow-2);
  transition: transform .18s ease, background-color .2s ease;
}
.whats:hover { transform: scale(1.06); background: var(--whats-hover); }

/* ---------- 16. Reveal ---------- */
.reveal { opacity: 0; transform: translateY(18px); }
.reveal.is-in {
  opacity: 1; transform: none;
  transition: opacity .5s ease, transform .5s ease;
}

/* ---------- 17. Breakpoints ---------- */
@media (min-width: 560px) {
  .gallery { grid-template-columns: repeat(2, 1fr); }
  .hero__facts { grid-template-columns: repeat(3, 1fr); gap: var(--gap-2); }
}

@media (min-width: 860px) {
  :root { --header-h: 74px; }

  .navtoggle { display: none; }

  /* .is-open incluído de propósito: se o menu mobile ficou aberto e a
     janela cresceu, a nav precisa voltar a ser a barra horizontal. */
  .nav, .nav.is-open {
    position: static; display: flex; align-items: center; gap: var(--gap-2);
    background: none; border: 0; box-shadow: none; padding: 0;
  }
  .nav__list { display: flex; gap: var(--gap-2); }
  .nav__list a { padding: .3rem 0; border: 0; }
  .nav__list a:hover { color: var(--duo-b); }
  .nav__cta { margin-top: 0; width: auto; }

  .cards { grid-template-columns: repeat(3, 1fr); }
  .steps { grid-template-columns: repeat(3, 1fr); gap: var(--gap-3); }
  .gallery { grid-template-columns: repeat(3, 1fr); }
  .contato { grid-template-columns: 1fr 1fr; gap: var(--gap-3); align-items: start; }
  .form { padding: 1.9rem; }

  .footer__inner {
    grid-template-columns: 1fr 1fr;
    column-gap: var(--gap-3);
  }
  .footer__copy { grid-column: 1 / -1; }
}

@media (min-width: 1024px) {
  .hero__title { max-width: 18ch; }
}

/* ---------- 18. Preferências do usuário ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: .001ms !important;
    transition-duration: .001ms !important;
  }
  .reveal { opacity: 1; transform: none; }
}

@media print {
  .testbar, .header, .whats, .hero__ghost { display: none !important; }
  body { color: #000; background: #fff; }
  .section, .hero { padding-block: 1.5rem; }
  .ph { border: 1px solid #000; background: none; color: #000 !important; }
}