/* =========================================================
   ADV by C9 — Landing Page
   Direção: instrumento premium. Uma família, peso como voz,
   assimetria intencional, material translúcido só onde serve.
   Paleta do design.md: Obsidiana, Champanhe, Verde Sinal, Marfim.
   ========================================================= */

:root {
  --obsidian:  #0A0D11;
  --graphite:  #151B22;
  --champagne: #C7A66A;
  --signal:    #63C9BE;
  --ivory:     #F2EFE7;
  --muted:     #9CA6B0;
  --danger:    #D85C5C;

  --surface-1: #0E1319;
  --surface-2: #151B22;
  --surface-3: #1C232C;

  --hairline:      rgba(242, 239, 231, 0.10);
  --hairline-soft: rgba(242, 239, 231, 0.06);

  --signal-ink: #062621;
  --signal-dim: rgba(99, 201, 190, 0.14);
  --champ-dim:  rgba(199, 166, 106, 0.14);

  --font: "Schibsted Grotesk", system-ui, -apple-system, "Segoe UI", sans-serif;

  --shell: 1240px;
  --gutter: clamp(20px, 5vw, 56px);

  /* mola crítica: sem bounce, saída exponencial */
  --out-expo: cubic-bezier(0.16, 1, 0.3, 1);

  /* escala z semântica */
  --z-nav: 20;
  --z-scrim: 60;
  --z-sheet: 70;
}

/* ---------- base ---------- */
*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--obsidian);
  color: var(--ivory);
  font-family: var(--font);
  font-size: 1.0625rem;
  line-height: 1.65; /* texto claro no escuro pede mais respiro */
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul, ol, dl, dd { margin: 0; padding: 0; }
ul, ol { list-style: none; }
button { font-family: inherit; cursor: pointer; }
p { margin: 0; }

h1, h2, h3 {
  margin: 0;
  font-weight: 700;
  line-height: 1.06;
  text-wrap: balance;
}
h1 { letter-spacing: -0.035em; }
h2 { letter-spacing: -0.025em; }
h3 { letter-spacing: -0.01em; }

em { font-style: italic; }

svg { fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; }

::selection { background: var(--signal-dim); color: var(--white, #fff); }

.skip-link {
  position: absolute; left: -999px; top: 0; z-index: 100;
  background: var(--signal); color: var(--signal-ink);
  padding: 10px 16px; border-radius: 10px; font-weight: 700;
}
.skip-link:focus { left: 12px; top: 12px; }

.shell {
  width: 100%;
  max-width: var(--shell);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

/* =========================================================
   Botões — resposta no toque, não no soltar
   ========================================================= */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  font-weight: 700; font-size: 1rem; letter-spacing: 0;
  padding: 14px 26px; border-radius: 12px; border: 1px solid transparent;
  transition: transform 100ms ease-out, background 180ms var(--out-expo),
              border-color 180ms var(--out-expo), color 180ms var(--out-expo);
  white-space: nowrap;
}
.btn:active { transform: scale(0.97); }
.btn:focus-visible { outline: 3px solid var(--signal); outline-offset: 3px; }

.btn--fill { background: var(--signal); color: var(--signal-ink); }
.btn--fill:hover { background: #79d5cb; }

.btn--line { background: transparent; color: var(--ivory); border-color: var(--hairline); }
.btn--line:hover { border-color: var(--ivory); }

.btn--lg { padding: 17px 32px; font-size: 1.05rem; }
.btn--block { width: 100%; }

/* =========================================================
   Nav — material translúcido, conteúdo passa por baixo
   ========================================================= */
.nav {
  position: sticky; top: 0; z-index: var(--z-nav);
}
.nav::before {
  content: ""; position: absolute; inset: 0; z-index: -1;
  background: rgba(10, 13, 17, 0);
  transition: background 300ms var(--out-expo);
}
.nav::after {
  /* borda de rolagem: surge em degradê, não hairline dura */
  content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 1px;
  background: linear-gradient(90deg, transparent, var(--hairline) 18%, var(--hairline) 82%, transparent);
  opacity: 0; transition: opacity 300ms var(--out-expo);
}
.nav[data-scrolled]::before {
  background: rgba(10, 13, 17, 0.62);
  backdrop-filter: blur(18px) saturate(150%);
  -webkit-backdrop-filter: blur(18px) saturate(150%);
}
.nav[data-scrolled]::after { opacity: 1; }

.nav__inner { display: flex; align-items: center; gap: 32px; height: 68px; }

.brand { display: inline-flex; align-items: center; gap: 10px; }
.brand__mark { width: 34px; height: 34px; }
.brand__word {
  font-weight: 800; font-size: 1.2rem; letter-spacing: -0.01em; color: var(--ivory);
  display: inline-flex; align-items: baseline; gap: 7px;
}
.brand__by { font-weight: 500; font-size: 0.78rem; color: var(--champagne); letter-spacing: 0.02em; }

.nav__links { display: flex; align-items: center; gap: 26px; margin-left: auto; }
.nav__links a {
  font-size: 0.95rem; font-weight: 500; color: var(--muted);
  transition: color 160ms var(--out-expo);
}
.nav__links a:hover { color: var(--ivory); }

.nav__cta { padding: 11px 20px; font-size: 0.92rem; margin-left: 6px; }

.nav__toggle {
  display: none; flex-direction: column; gap: 6px;
  background: none; border: 0; padding: 10px; margin-left: auto;
}
.nav__toggle span {
  width: 22px; height: 2px; background: var(--ivory); border-radius: 2px;
  transition: transform 220ms var(--out-expo);
}
.nav__toggle[aria-expanded="true"] span:first-child { transform: translateY(4px) rotate(45deg); }
.nav__toggle[aria-expanded="true"] span:last-child { transform: translateY(-4px) rotate(-45deg); }

/* =========================================================
   Hero — assimétrico: texto pesa à esquerda, aparelho desce à direita
   ========================================================= */
.hero { padding-block: clamp(48px, 8vw, 96px) 0; }

.hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  gap: clamp(32px, 5vw, 72px);
  align-items: start;
}

.hero__title {
  font-size: clamp(2.4rem, 5.6vw, 4.6rem);
  font-weight: 800;
  line-height: 1.02;
}
.hero__title em { color: var(--ivory); font-weight: 400; }
.hero__title-end { color: var(--champagne); }

.hero__sub {
  margin-top: 28px;
  max-width: 56ch;
  font-size: clamp(1.05rem, 1.5vw, 1.2rem);
  color: var(--muted);
}

.hero__actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 36px; }

.hero__honest {
  margin-top: 40px;
  padding-top: 20px;
  border-top: 1px solid var(--hairline-soft);
  max-width: 46ch;
  font-size: 0.92rem;
  color: var(--muted);
}

/* aparelho desce além da dobra de propósito */
.hero__device { margin-top: clamp(8px, 4vw, 64px); }

.phone {
  margin: 0;
  background: linear-gradient(180deg, var(--surface-2), var(--surface-1));
  border: 1px solid var(--hairline);
  border-radius: 26px;
  padding: 18px 16px 16px;
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.45);
  max-width: 380px;
  margin-left: auto;
}
.phone__top {
  display: flex; align-items: center; gap: 10px;
  padding: 0 4px 14px; border-bottom: 1px solid var(--hairline-soft);
}
.phone__avatar {
  width: 30px; height: 30px; border-radius: 50%;
  background: var(--ivory); padding: 3px;
}
.phone__id { display: flex; flex-direction: column; line-height: 1.3; }
.phone__id strong { font-size: 0.88rem; font-weight: 700; }
.phone__id span {
  font-size: 0.75rem; color: var(--signal);
  display: inline-flex; align-items: center; gap: 6px;
}
.phone__pulse {
  width: 6px; height: 6px; border-radius: 50%; background: var(--signal);
  animation: pulse 2.4s ease-in-out infinite;
}
@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.35; } }

.phone__thread { display: flex; flex-direction: column; gap: 10px; padding: 16px 4px 4px; }

.msg {
  max-width: 86%; padding: 11px 14px;
  font-size: 0.9rem; line-height: 1.5; border-radius: 15px;
}
.msg--in { align-self: flex-start; background: var(--surface-3); border-bottom-left-radius: 5px; }
.msg--out {
  align-self: flex-end; background: var(--signal); color: var(--signal-ink);
  border-bottom-right-radius: 5px;
}
.msg--fwd { background: var(--champagne); color: #33270e; }
.msg--sys {
  align-self: center; max-width: 100%;
  font-size: 0.72rem; color: var(--muted);
  padding: 5px 12px; border: 1px solid var(--hairline-soft); border-radius: 999px;
}

/* coreografia de entrada: só o hero, só com JS, visível por padrão */
.js .fx { opacity: 0; transform: translateY(14px); }
.js.is-loaded .fx {
  opacity: 1; transform: none;
  transition: opacity 700ms var(--out-expo), transform 700ms var(--out-expo);
}
.js.is-loaded .fx[data-fx="2"] { transition-delay: 90ms; }
.js.is-loaded .fx[data-fx="3"] { transition-delay: 180ms; }
.js.is-loaded .fx[data-fx="4"] { transition-delay: 260ms; }

.js [data-thread] .msg { opacity: 0; transform: translateY(8px); }
.js [data-thread] .msg.is-on {
  opacity: 1; transform: none;
  transition: opacity 380ms var(--out-expo), transform 380ms var(--out-expo);
}

/* =========================================================
   A enxurrada — bolhas correndo, cópia deslocada à direita
   ========================================================= */
.flood {
  margin-top: clamp(64px, 9vw, 120px);
  padding-block: clamp(56px, 8vw, 100px);
  background: var(--surface-1);
  border-block: 1px solid var(--hairline-soft);
  overflow: hidden;
}

.flood__rows { display: flex; flex-direction: column; gap: 14px; }
.flood__row {
  mask-image: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent);
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent);
}
.flood__track {
  display: inline-flex; gap: 14px; padding-right: 14px;
  width: max-content;
  animation: flood-a 46s linear infinite;
}
.flood__row--b .flood__track { animation: flood-b 58s linear infinite; }

.flood__track span {
  flex-shrink: 0;
  padding: 11px 20px;
  border-radius: 999px; border-bottom-left-radius: 6px;
  background: var(--surface-3);
  color: var(--muted);
  font-size: 0.95rem;
  white-space: nowrap;
}

@keyframes flood-a { to { transform: translateX(-50%); } }
@keyframes flood-b { from { transform: translateX(-50%); } to { transform: translateX(0); } }

.flood__copy {
  margin-top: clamp(48px, 6vw, 72px);
  display: grid;
  grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  gap: clamp(24px, 4vw, 56px);
  align-items: start;
}
.flood__copy h2 { font-size: clamp(1.9rem, 4vw, 3rem); }
.flood__copy p {
  max-width: 58ch; color: var(--muted); font-size: 1.1rem;
  padding-top: 8px;
}

/* =========================================================
   Como funciona — trilho numerado (sequência real, número merecido)
   ========================================================= */
.flow { padding-block: clamp(80px, 11vw, 150px); }

.flow__head {
  display: grid;
  grid-template-columns: minmax(0, 6fr) minmax(0, 5fr);
  gap: clamp(24px, 4vw, 64px);
  align-items: end;
  margin-bottom: clamp(48px, 6vw, 80px);
}
.flow__head h2 { font-size: clamp(2rem, 4.4vw, 3.3rem); }
.flow__head p { color: var(--muted); font-size: 1.1rem; max-width: 44ch; justify-self: end; }

.flow__rail { display: flex; flex-direction: column; }

.flow__step {
  display: grid;
  grid-template-columns: 96px minmax(0, 1fr);
  gap: clamp(20px, 3vw, 44px);
  padding-block: clamp(28px, 4vw, 44px);
  border-top: 1px solid var(--hairline-soft);
}
.flow__step:nth-child(2) { margin-left: clamp(0px, 6vw, 88px); }
.flow__step:nth-child(3) { margin-left: clamp(0px, 12vw, 176px); }
.flow__step:nth-child(4) { margin-left: clamp(0px, 18vw, 264px); }

.flow__num {
  font-size: clamp(2.4rem, 4vw, 3.4rem);
  font-weight: 800;
  line-height: 1;
  color: var(--signal);
  letter-spacing: -0.03em;
}
.flow__body h3 { font-size: 1.3rem; margin-bottom: 10px; }
.flow__body p { color: var(--muted); max-width: 52ch; }

/* =========================================================
   Guardrails — o momento de releitura
   ========================================================= */
.guard {
  padding-block: clamp(80px, 11vw, 150px);
  background: var(--surface-1);
  border-block: 1px solid var(--hairline-soft);
}

.guard__grid {
  display: grid;
  grid-template-columns: minmax(0, 5fr) minmax(0, 6fr);
  gap: clamp(32px, 5vw, 80px);
  align-items: start;
}

.guard__head h2 { font-size: clamp(2rem, 4.4vw, 3.2rem); }
.guard__head h2 em { color: var(--champagne); }
.guard__head > p { margin-top: 22px; color: var(--muted); font-size: 1.08rem; max-width: 46ch; }

.guard__chips { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 32px; }

.chip {
  padding: 11px 18px;
  border-radius: 999px;
  border: 1px solid var(--hairline);
  background: transparent;
  color: var(--muted);
  font-size: 0.95rem; font-weight: 500;
  transition: transform 100ms ease-out, background 200ms var(--out-expo),
              color 200ms var(--out-expo), border-color 200ms var(--out-expo);
}
.chip:active { transform: scale(0.97); }
.chip:hover { color: var(--ivory); border-color: var(--ivory); }
.chip.is-active {
  background: var(--ivory); color: var(--obsidian);
  border-color: var(--ivory); font-weight: 700;
}
.chip:focus-visible { outline: 3px solid var(--signal); outline-offset: 3px; }

.guard__panel { display: flex; flex-direction: column; gap: 18px; }
.guard__panel.is-swap .verdict { opacity: 0; transform: translateY(6px); }

.verdict {
  padding: 26px 28px;
  border-radius: 18px;
  border: 1px solid var(--hairline);
  transition: opacity 200ms var(--out-expo), transform 200ms var(--out-expo);
}
.verdict h3 {
  font-size: 0.82rem; font-weight: 700; letter-spacing: 0.04em;
  margin-bottom: 14px;
}
.verdict--bad { background: var(--surface-2); }
.verdict--bad h3 { color: var(--muted); }
.verdict--adv { background: var(--signal-dim); border-color: rgba(99, 201, 190, 0.3); }
.verdict--adv h3 { color: var(--signal); }

.verdict__msg { font-size: 1.15rem; line-height: 1.5; letter-spacing: -0.01em; }
.verdict--bad .verdict__msg {
  color: var(--muted);
  text-decoration: line-through;
  text-decoration-color: var(--danger);
  text-decoration-thickness: 2px;
}
.verdict--adv .verdict__msg { color: var(--ivory); }

.verdict__label { margin-top: 14px; font-size: 0.88rem; color: var(--danger); }
.verdict__label--fwd { color: var(--champagne); }

.guard__floor { margin-top: clamp(48px, 6vw, 72px); }
.guard__floor p {
  max-width: 68ch;
  padding-top: 24px;
  border-top: 1px solid var(--hairline-soft);
  color: var(--muted); font-size: 1.05rem;
}

/* =========================================================
   Confiança — colunas com réguas, sem cards
   ========================================================= */
.trust { padding-block: clamp(80px, 11vw, 140px); }

.trust__grid {
  display: grid;
  grid-template-columns: minmax(0, 4fr) minmax(0, 8fr);
  gap: clamp(32px, 5vw, 88px);
  align-items: start;
}
.trust__title { font-size: clamp(1.7rem, 3.4vw, 2.5rem); max-width: 14ch; }

.trust__list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(24px, 3vw, 40px);
}
.trust__item { padding-top: 22px; border-top: 1px solid var(--hairline); }
.trust__item dt { font-weight: 700; font-size: 1.08rem; margin-bottom: 10px; }
.trust__item dd { color: var(--muted); font-size: 0.97rem; }

/* =========================================================
   Fundadores
   ========================================================= */
.founders {
  padding-block: clamp(80px, 11vw, 140px);
  background: var(--surface-1);
  border-block: 1px solid var(--hairline-soft);
}
.founders__grid {
  display: grid;
  grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
  gap: clamp(32px, 5vw, 96px);
  align-items: start;
}
.founders__copy h2 { font-size: clamp(2rem, 4.2vw, 3rem); max-width: 18ch; }
.founders__copy p { margin-top: 22px; color: var(--muted); font-size: 1.1rem; max-width: 56ch; }
.founders__copy .btn { margin-top: 34px; }

.founders__facts { margin-top: 12px; }
.founders__facts li {
  padding: 18px 0;
  border-bottom: 1px solid var(--hairline-soft);
  font-weight: 500; font-size: 1.02rem;
}
.founders__facts li:last-child { color: var(--champagne); }

/* =========================================================
   FAQ — lista com réguas
   ========================================================= */
.faq { padding-block: clamp(80px, 11vw, 140px); }
.faq__grid {
  display: grid;
  grid-template-columns: minmax(0, 4fr) minmax(0, 7fr);
  gap: clamp(32px, 5vw, 88px);
  align-items: start;
}
.faq__title { font-size: clamp(1.7rem, 3.4vw, 2.4rem); max-width: 16ch; position: sticky; top: 96px; }

.faq__item { border-bottom: 1px solid var(--hairline); }
.faq__item summary {
  list-style: none; cursor: pointer;
  padding: 22px 40px 22px 0;
  font-weight: 700; font-size: 1.1rem;
  position: relative;
}
.faq__item summary::-webkit-details-marker { display: none; }
.faq__item summary::after {
  content: "+";
  position: absolute; right: 4px; top: 50%;
  transform: translateY(-50%);
  font-size: 1.5rem; font-weight: 400; color: var(--signal);
  transition: transform 250ms var(--out-expo);
}
.faq__item[open] summary::after { transform: translateY(-50%) rotate(45deg); }
.faq__item p { padding: 0 0 24px; color: var(--muted); max-width: 62ch; }

/* =========================================================
   CTA final — assimétrico, sem palco centralizado
   ========================================================= */
.final {
  padding-block: clamp(80px, 12vw, 160px);
  border-top: 1px solid var(--hairline-soft);
}
.final__title {
  font-size: clamp(2.3rem, 5.6vw, 4.4rem);
  font-weight: 800;
}
.final__title em { color: var(--signal); font-style: normal; }

.final__row {
  margin-top: clamp(36px, 5vw, 56px);
  display: grid;
  grid-template-columns: minmax(0, 6fr) minmax(0, 5fr);
  gap: clamp(24px, 4vw, 72px);
  align-items: start;
}
.final__row > p { color: var(--muted); font-size: 1.12rem; max-width: 52ch; }

.final__act { display: flex; flex-direction: column; gap: 14px; justify-self: end; align-items: flex-start; }
.final__act span { font-size: 0.9rem; color: var(--muted); }

/* =========================================================
   Footer
   ========================================================= */
.footer { border-top: 1px solid var(--hairline-soft); padding-block: 48px; }
.footer__grid { display: grid; gap: 20px; }
.footer .brand__mark { width: 30px; height: 30px; }
.footer__note { color: var(--muted); font-size: 0.9rem; max-width: 62ch; }
.footer__legal { color: var(--muted); font-size: 0.82rem; opacity: 0.75; }

/* =========================================================
   Modal — folha modal com scrim, origem clara
   ========================================================= */
.modal {
  position: fixed; inset: 0; z-index: var(--z-scrim);
  display: flex; align-items: center; justify-content: center;
  padding: 20px;
}
.modal[hidden] { display: none; }

.modal__scrim {
  position: absolute; inset: 0;
  background: rgba(5, 7, 10, 0.7);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  animation: scrim-in 260ms var(--out-expo);
}
.modal__sheet {
  position: relative; z-index: var(--z-sheet);
  width: 100%; max-width: 440px;
  max-height: calc(100vh - 40px); overflow-y: auto;
  background: var(--surface-2);
  border: 1px solid var(--hairline);
  border-radius: 22px;
  padding: 36px clamp(24px, 5vw, 38px) 30px;
  box-shadow: 0 40px 100px rgba(0, 0, 0, 0.5);
  animation: sheet-in 320ms var(--out-expo);
}
@keyframes scrim-in { from { opacity: 0; } }
@keyframes sheet-in { from { opacity: 0; transform: translateY(18px) scale(0.98); } }

.modal__close {
  position: absolute; top: 14px; right: 14px;
  width: 36px; height: 36px;
  display: inline-flex; align-items: center; justify-content: center;
  background: var(--surface-3); border: 0; border-radius: 50%;
  color: var(--muted);
  transition: transform 100ms ease-out, color 160ms var(--out-expo);
}
.modal__close:active { transform: scale(0.94); }
.modal__close:hover { color: var(--ivory); }
.modal__close svg { width: 16px; height: 16px; }

.modal__sheet h2 { font-size: 1.45rem; }
.modal__sub { margin: 10px 0 26px; color: var(--muted); font-size: 0.95rem; max-width: 34ch; }

.form { display: flex; flex-direction: column; gap: 16px; }
.field { display: flex; flex-direction: column; gap: 7px; }
.field label { font-size: 0.88rem; font-weight: 700; }
.field__opt { color: var(--muted); font-weight: 400; }

.field input, .field select {
  font-family: inherit; font-size: 1rem; color: var(--ivory);
  background: var(--surface-3);
  border: 1px solid var(--hairline);
  border-radius: 12px;
  padding: 13px 15px; width: 100%;
  transition: border-color 160ms var(--out-expo), box-shadow 160ms var(--out-expo);
}
.field select {
  appearance: none;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%239CA6B0' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'><path d='M6 9l6 6 6-6'/></svg>");
  background-repeat: no-repeat; background-position: right 14px center;
  padding-right: 42px;
}
.field input::placeholder { color: rgba(156, 166, 176, 0.75); }
.field input:focus, .field select:focus {
  outline: none; border-color: var(--signal);
  box-shadow: 0 0 0 3px var(--signal-dim);
}
.field input[aria-invalid="true"] { border-color: var(--danger); }
.field__error { font-size: 0.8rem; color: var(--danger); }

.form .btn { margin-top: 6px; }
.form__micro { text-align: center; font-size: 0.82rem; color: var(--muted); }

/* =========================================================
   Responsivo
   ========================================================= */
@media (max-width: 960px) {
  .hero__grid { grid-template-columns: 1fr; }
  .hero__device { margin-top: 8px; }
  .phone { margin-left: 0; }

  .flood__copy { grid-template-columns: 1fr; }
  .flow__head { grid-template-columns: 1fr; align-items: start; }
  .flow__head p { justify-self: start; }
  .flow__step:nth-child(n) { margin-left: 0; }

  .guard__grid { grid-template-columns: 1fr; }
  .trust__grid { grid-template-columns: 1fr; }
  .trust__list { grid-template-columns: 1fr; }
  .founders__grid { grid-template-columns: 1fr; }
  .faq__grid { grid-template-columns: 1fr; }
  .faq__title { position: static; }
  .final__row { grid-template-columns: 1fr; }
  .final__act { justify-self: start; }
}

@media (max-width: 720px) {
  .nav__links { display: none; }
  .nav__toggle { display: flex; }

  .nav[data-open]::before {
    background: rgba(10, 13, 17, 0.96);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
  }
  .nav[data-open] .nav__links {
    display: flex; flex-direction: column; align-items: stretch; gap: 0;
    position: absolute; top: 68px; left: 0; right: 0;
    background: var(--surface-1);
    border-bottom: 1px solid var(--hairline);
    padding: 8px var(--gutter) 20px;
  }
  .nav[data-open] .nav__links a {
    padding: 14px 0; font-size: 1.1rem; color: var(--ivory);
    border-bottom: 1px solid var(--hairline-soft);
  }
  .nav[data-open] .nav__cta { margin: 18px 0 0; padding: 15px 20px; font-size: 1rem; }

  .flow__step { grid-template-columns: 56px 1fr; }
  .verdict { padding: 22px 20px; }
}

@media (max-width: 460px) {
  .hero__actions .btn { width: 100%; }
  .final__act .btn { width: 100%; }
}

/* =========================================================
   Preferências do usuário
   ========================================================= */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .js .fx, .js [data-thread] .msg { opacity: 1; transform: none; transition: none; }
  .flood__track { animation: none; }
  .phone__pulse { animation: none; }
  .modal__scrim, .modal__sheet { animation: none; }
  .guard__panel.is-swap .verdict { opacity: 1; transform: none; }
  *, *::before, *::after { transition-duration: 1ms !important; }
}

@media (prefers-reduced-transparency: reduce) {
  .nav[data-scrolled]::before, .nav[data-open]::before {
    background: var(--obsidian); backdrop-filter: none; -webkit-backdrop-filter: none;
  }
  .modal__scrim { backdrop-filter: none; -webkit-backdrop-filter: none; background: rgba(5, 7, 10, 0.88); }
}