/* ==========================================================================
   LDX CAPITAL — "De Zero a R$ 400 Milhões Sob Aconselhamento"
   Landing page · folha de estilo única
   --------------------------------------------------------------------------
   1. Tokens          5. Hero
   2. Reset / base    6. Seções
   3. Tipografia      7. Oferta / FAQ / rodapé
   4. Layout          8. Responsivo
   ========================================================================== */

/* 1. TOKENS ============================================================== */
:root {
  /* cor */
  --ink:        #050f18;
  --ink-2:      #081621;
  --surface:    #0c1c28;
  --surface-2:  #102433;
  --line:       #1b3243;
  --line-soft:  rgba(255, 255, 255, .07);
  --orange:     #ff5a14;
  --orange-dim: rgba(255, 90, 20, .38);
  --amber:      #f0a45e;
  --cream:      #f4eee6;
  --muted:      #9fb0bd;
  --dim:        #6e8494;

  /* tipo */
  --serif: 'Playfair Display', Georgia, 'Times New Roman', serif;
  --sans:  'DM Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Arial, sans-serif;
  --mono:  'DM Mono', ui-monospace, 'SF Mono', Menlo, monospace;

  /* medida */
  --shell: 1200px;
  --gutter: clamp(20px, 5vw, 48px);
  --pad-section: clamp(72px, 9vw, 132px);
  --radius: 14px;
  --radius-lg: 20px;

  /* movimento */
  --ease: cubic-bezier(.22, .61, .36, 1);
}

/* 2. RESET / BASE ======================================================== */
*, *::before, *::after { box-sizing: border-box; }

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

body {
  margin: 0;
  background: var(--ink);
  color: var(--cream);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.65;
  font-feature-settings: 'kern' 1, 'liga' 1;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; cursor: pointer; }
img, svg { display: block; max-width: 100%; }
h1, h2, h3, h4, p, figure, blockquote { margin-top: 0; }
ul, ol { margin: 0; padding: 0; list-style: none; }

:focus-visible {
  outline: 2px solid var(--orange);
  outline-offset: 4px;
  border-radius: 4px;
}

::selection { background: var(--orange); color: #fff; }

.skip-link {
  position: fixed;
  z-index: 100;
  top: 10px;
  left: 50%;
  translate: -50% -200%;
  padding: 12px 18px;
  background: var(--orange);
  color: #fff;
  font: 600 12px/1 var(--mono);
  border-radius: 10px;
  transition: translate .2s var(--ease);
}
.skip-link:focus-visible { translate: -50% 0; }

/* 3. TIPOGRAFIA ========================================================== */
h1, h2 {
  font-family: var(--serif);
  font-weight: 500;
  line-height: 1.04;
  letter-spacing: -.028em;
  text-wrap: balance;
}

h1 { font-size: clamp(40px, 5.1vw, 70px); margin: 0 0 26px; }
h2 { font-size: clamp(32px, 3.9vw, 54px); margin: 0 0 24px; }

h3 {
  font-family: var(--serif);
  font-weight: 500;
  font-size: clamp(19px, 1.5vw, 23px);
  line-height: 1.22;
  letter-spacing: -.015em;
  margin: 0 0 10px;
}

em { font-style: normal; color: var(--orange); }

.lead {
  font-size: clamp(16px, 1.3vw, 19px);
  line-height: 1.62;
  color: var(--muted);
  max-width: 58ch;
  margin: 0;
  text-wrap: pretty;
}

.eyebrow {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 0 0 22px;
  color: var(--orange);
  font: 500 10px/1 var(--mono);
  letter-spacing: .18em;
  text-transform: uppercase;
}
.eyebrow::before {
  content: '';
  width: 26px;
  height: 1px;
  background: currentColor;
  opacity: .65;
  flex: none;
}
.eyebrow--index::after {
  content: attr(data-index);
  margin-left: auto;
  color: var(--dim);
  letter-spacing: .14em;
}

.fine-print {
  font-size: 11px;
  line-height: 1.6;
  color: var(--dim);
  margin: 0;
}

/* 4. LAYOUT ============================================================== */
.shell {
  width: 100%;
  max-width: var(--shell);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.section { padding-block: var(--pad-section); }
.section--tight { padding-block: clamp(56px, 7vw, 96px); }

.rule {
  height: 1px;
  background: var(--line);
  border: 0;
  margin: 0;
}

/* faixa com fotografia de fundo ------------------------------------------ */
.band {
  position: relative;
  isolation: isolate;
  overflow: hidden;
}
.band::before,
.band::after {
  content: '';
  position: absolute;
  inset: 0;
  z-index: -1;
}
.band::before {
  background: url('assets/office-hero.avif') 50% 38% / cover no-repeat;
  transform: scale(1.04);
  filter: brightness(1.35) saturate(1.08);
}
.band::after {
  background:
    linear-gradient(100deg, rgba(5, 15, 24, .94) 0%, rgba(5, 15, 24, .86) 50%, rgba(5, 15, 24, .93) 100%),
    linear-gradient(180deg, rgba(5, 15, 24, .5), rgba(5, 15, 24, .25) 45%, rgba(5, 15, 24, .6)),
    radial-gradient(90% 120% at 10% 50%, rgba(255, 90, 20, .09), transparent 60%);
}
.band--deep::after {
  background:
    linear-gradient(100deg, rgba(5, 15, 24, .96) 0%, rgba(5, 15, 24, .88) 55%, rgba(5, 15, 24, .96) 100%),
    linear-gradient(180deg, rgba(5, 15, 24, .55), rgba(5, 15, 24, .2) 50%, rgba(5, 15, 24, .65));
}

/* fundo sólido alternativo ----------------------------------------------- */
.panel {
  background: var(--ink-2);
  border-block: 1px solid var(--line);
}

/* ------------------------------------------------------------------ botões */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  padding: 17px 20px 17px 24px;
  border: 0;
  border-radius: var(--radius);
  background: var(--orange);
  color: #fff;
  font: 700 11.5px/1 var(--mono);
  letter-spacing: .09em;
  box-shadow: 0 12px 30px -12px rgba(255, 90, 20, .6);
  transition: transform .22s var(--ease), box-shadow .22s var(--ease), filter .22s var(--ease);
}
.btn b { font-size: 17px; font-weight: 400; transition: translate .22s var(--ease); }
.btn:hover {
  transform: translateY(-2px);
  filter: brightness(1.06);
  box-shadow: 0 18px 38px -14px rgba(255, 90, 20, .75);
}
.btn:hover b { translate: 4px 0; }
.btn:active { transform: translateY(0); }
.btn--block { width: 100%; }

.btn-ghost {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 12px 17px;
  border: 1px solid var(--orange-dim);
  border-radius: var(--radius);
  color: var(--cream);
  font: 500 10px/1 var(--mono);
  letter-spacing: .14em;
  transition: background .2s var(--ease), border-color .2s var(--ease);
}
.btn-ghost span { color: var(--orange); font-size: 14px; }
.btn-ghost:hover { background: rgba(255, 90, 20, .1); border-color: var(--orange); }

/* ----------------------------------------------------------------- header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: rgba(5, 15, 24, 0);
  backdrop-filter: blur(0px);
  transition: background .3s var(--ease), backdrop-filter .3s var(--ease), border-color .3s var(--ease);
  border-bottom: 1px solid transparent;
}
.site-header.is-stuck {
  background: rgba(5, 15, 24, .82);
  backdrop-filter: blur(14px) saturate(140%);
  border-bottom-color: var(--line);
}
.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  height: 78px;
  transition: height .3s var(--ease);
}
.site-header.is-stuck .site-header__inner { height: 66px; }

.brand { display: block; flex: none; }
.brand img { width: 128px; height: 37px; object-fit: contain; object-position: left center; }

.progress {
  position: absolute;
  left: 0;
  bottom: -1px;
  height: 2px;
  width: 100%;
  transform-origin: 0 50%;
  scale: 0 1;
  background: linear-gradient(90deg, var(--orange), var(--amber));
  opacity: 0;
  transition: opacity .3s var(--ease);
}
.site-header.is-stuck .progress { opacity: 1; }

/* 5. HERO ================================================================ */
.hero {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.14fr) minmax(0, .86fr);
  align-items: stretch;
  min-height: min(840px, calc(100svh - 78px));
  background:
    radial-gradient(80% 90% at 8% 38%, rgba(255, 90, 20, .13), transparent 58%),
    linear-gradient(180deg, var(--ink) 0%, #061320 100%);
  border-bottom: 1px solid var(--line);
}

.hero__copy {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: clamp(56px, 7vw, 96px) clamp(32px, 4.5vw, 64px) clamp(56px, 7vw, 96px)
           max(var(--gutter), calc((100vw - var(--shell)) / 2 + var(--gutter)));
  min-width: 0;
}

.hero h1 { font-size: clamp(38px, 4.5vw, 62px); letter-spacing: -.035em; }
.hero h1 .line { display: block; }
.hero .lead { max-width: 50ch; }

.hero__benefits {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0 0;
  margin: 28px 0 0;
  color: var(--muted);
  font-size: 12.5px;
}
.hero__benefits li + li::before {
  content: '';
  display: inline-block;
  width: 3px;
  height: 3px;
  margin: 0 12px 3px;
  border-radius: 50%;
  background: var(--orange);
  vertical-align: middle;
}

.hero__price {
  margin: 30px 0 22px;
  padding-left: 16px;
  border-left: 2px solid var(--orange);
}
.hero__price small {
  display: block;
  font: 500 10px/1 var(--mono);
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--dim);
  margin-bottom: 7px;
}
.hero__price strong {
  display: block;
  font: 500 clamp(26px, 2.4vw, 32px)/1.1 var(--serif);
  letter-spacing: -.02em;
}
.hero__price span {
  display: block;
  margin-top: 5px;
  font-size: 12px;
  color: var(--muted);
}

.hero__cta { align-self: flex-start; }

/* imagem do manual, sangrando até a borda -------------------------------- */
.hero__media {
  position: relative;
  align-self: stretch;
  min-height: 420px;
  overflow: hidden;
}
.hero__media picture,
.hero__media img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}
.hero__media img {
  object-fit: cover;
  object-position: 52% 46%;
}
.hero__media::after {
  content: '';
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, var(--ink) 0%, var(--ink) 6%, rgba(5, 15, 24, .92) 16%, rgba(5, 15, 24, .55) 30%, rgba(5, 15, 24, .14) 48%, transparent 66%),
    linear-gradient(0deg, rgba(5, 15, 24, .6), transparent 30%),
    linear-gradient(180deg, rgba(5, 15, 24, .45), transparent 22%);
  pointer-events: none;
}
.hero__caption {
  position: absolute;
  z-index: 2;
  right: clamp(18px, 2.4vw, 32px);
  bottom: clamp(18px, 2.4vw, 30px);
  font: 500 9px/1 var(--mono);
  letter-spacing: .22em;
  text-transform: uppercase;
  color: rgba(244, 238, 230, .62);
}

/* régua de credibilidade sob o hero -------------------------------------- */
.ticker {
  border-bottom: 1px solid var(--line);
  background: var(--ink-2);
}
.ticker ul {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
}
.ticker li {
  padding: 22px 24px;
  border-left: 1px solid var(--line);
}
.ticker li:first-child { border-left: 0; padding-left: 0; }
.ticker strong {
  display: block;
  font: 500 clamp(19px, 1.8vw, 24px)/1.1 var(--serif);
  letter-spacing: -.02em;
}
.ticker span {
  display: block;
  margin-top: 3px;
  font-size: 11.5px;
  color: var(--dim);
}

/* 6. SEÇÕES ============================================================== */
/* ------------------------------------------------------------- o sistema */
.split {
  display: grid;
  grid-template-columns: minmax(0, .95fr) minmax(0, 1.05fr);
  gap: clamp(32px, 5vw, 72px);
  align-items: start;
}
.split__body { color: var(--muted); padding-top: 6px; }
.split__body p { margin: 0 0 15px; max-width: 54ch; }
.split__body p:last-child { margin-bottom: 0; }

.flow {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  margin-top: clamp(44px, 5vw, 66px);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.flow li {
  position: relative;
  padding: 22px 16px 22px 0;
  font: 500 10px/1.4 var(--mono);
  letter-spacing: .13em;
  text-transform: uppercase;
  color: var(--muted);
}
.flow li::before {
  content: attr(data-step);
  display: block;
  margin-bottom: 9px;
  color: var(--orange);
  font-size: 9px;
  letter-spacing: .14em;
}
.flow li:not(:last-child)::after {
  content: '→';
  position: absolute;
  right: 14px;
  bottom: 22px;
  color: var(--orange);
  opacity: .55;
  font-size: 13px;
}

/* -------------------------------------------------------------- conteúdo */
.topics {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  margin-top: clamp(44px, 5vw, 64px);
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.topics article {
  position: relative;
  padding: clamp(26px, 2.6vw, 34px);
  background: var(--ink-2);
  transition: background .25s var(--ease);
}
.topics article::after {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, var(--orange), transparent);
  scale: 0 1;
  transform-origin: 0 50%;
  transition: scale .35s var(--ease);
}
.topics article:hover { background: var(--surface); }
.topics article:hover::after { scale: 1 1; }
.topics .num {
  display: block;
  margin-bottom: 20px;
  font: 500 10px/1 var(--mono);
  letter-spacing: .16em;
  color: var(--orange);
}
.topics p {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.6;
  color: var(--muted);
  max-width: 34ch;
}

/* ---------------------------------------------------------------- números */
.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  margin: clamp(44px, 5vw, 62px) 0 20px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.stats div {
  padding: 30px 22px 32px;
  border-left: 1px solid var(--line);
}
.stats div:first-child { border-left: 0; padding-left: 0; }
.stats strong {
  display: block;
  font: 600 clamp(28px, 3.2vw, 46px)/1 var(--serif);
  letter-spacing: -.045em;
  font-variant-numeric: tabular-nums;
}
.stats span {
  display: block;
  margin-top: 8px;
  font-size: 12px;
  color: var(--muted);
}

/* ------------------------------------------------------------- matemática */
.calc {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  margin-top: clamp(40px, 4.5vw, 58px);
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.calc div {
  background: var(--surface);
  padding: clamp(24px, 2.4vw, 32px);
}
.calc div:last-child { background: var(--surface-2); }
.calc small {
  display: block;
  margin-bottom: 14px;
  font-size: 11.5px;
  line-height: 1.5;
  color: var(--dim);
  min-height: 2.6em;
}
.calc strong {
  display: block;
  font: 500 clamp(24px, 2.6vw, 36px)/1.12 var(--serif);
  letter-spacing: -.025em;
}
.calc div:last-child strong { color: var(--orange); }

.math-notes {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px 44px;
  margin-top: 30px;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.62;
}
.math-notes p { margin: 0; }
.math-notes .fine-print { grid-column: 1 / -1; margin-top: 4px; }

/* --------------------------------------------------------------- público */
.audience { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(32px, 5vw, 72px); }
.audience ul { display: grid; gap: 14px; color: var(--muted); font-size: 14.5px; padding-top: 6px; }
.audience li { display: flex; gap: 12px; }
.audience li::before { content: '—'; color: var(--orange); flex: none; }

.pullquote {
  grid-column: 1 / -1;
  margin: clamp(8px, 2vw, 22px) 0 0;
  padding-top: clamp(30px, 3.5vw, 42px);
  border-top: 1px solid var(--line);
  font: 500 clamp(22px, 2.6vw, 34px)/1.3 var(--serif);
  letter-spacing: -.02em;
  max-width: 34ch;
}
.pullquote em { display: block; }

/* ------------------------------------------------------------- statement */
.statement { padding-block: clamp(88px, 11vw, 150px); }
.statement p {
  margin: 0 0 6px;
  font: 500 clamp(24px, 3.2vw, 44px)/1.15 var(--serif);
  letter-spacing: -.025em;
  color: var(--muted);
}
.statement h2 {
  font-size: clamp(38px, 5.6vw, 76px);
  letter-spacing: -.04em;
  margin-bottom: 26px;
}
.statement .lead { max-width: 56ch; font-size: clamp(15px, 1.2vw, 17px); }

/* --------------------------------------------------------------- método */
.mac {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  margin-top: clamp(40px, 4.5vw, 58px);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.mac article { padding: clamp(28px, 3vw, 38px) clamp(22px, 2.4vw, 32px) clamp(28px, 3vw, 38px) 0; }
.mac article + article { border-left: 1px solid var(--line); padding-left: clamp(22px, 2.4vw, 32px); }
.mac b {
  display: block;
  font: 500 clamp(52px, 6vw, 82px)/.78 var(--serif);
  color: var(--orange);
  letter-spacing: -.04em;
}
.mac h3 {
  margin: 24px 0 8px;
  font: 500 11.5px/1 var(--mono);
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--cream);
}
.mac p { margin: 0; font-size: 14px; color: var(--muted); }

.mac-note {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0 18px;
  margin: 26px 0 0;
  font: 500 11px/1.8 var(--mono);
  letter-spacing: .07em;
  color: var(--dim);
}
.mac-note li { display: flex; align-items: center; gap: 18px; }
.mac-note li:not(:last-child)::after {
  content: '';
  width: 3px;
  height: 3px;
  border-radius: 50%;
  background: var(--orange);
}

/* 7. OFERTA / FAQ / RODAPÉ =============================================== */
.offer {
  display: grid;
  grid-template-columns: minmax(0, .82fr) minmax(0, 1.18fr);
  gap: clamp(32px, 5vw, 76px);
  align-items: center;
}
.offer__art {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--line);
  aspect-ratio: 4 / 5;
  background: var(--surface);
}
.offer__art img { width: 100%; height: 100%; object-fit: cover; object-position: 50% 48%; }
.offer__art::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 55%, rgba(5, 15, 24, .55));
  pointer-events: none;
}
.offer__badge {
  position: absolute;
  z-index: 2;
  left: 18px;
  top: 18px;
  padding: 7px 12px;
  border-radius: 99px;
  background: rgba(5, 15, 24, .72);
  backdrop-filter: blur(8px);
  border: 1px solid var(--orange-dim);
  font: 500 9px/1 var(--mono);
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--cream);
}

.offer h2 { font-size: clamp(28px, 3.1vw, 42px); }
.offer__copy > p { color: var(--muted); margin: 0 0 4px; }

.price { margin: 26px 0 24px; }
.price .label {
  display: block;
  font: 500 10px/1 var(--mono);
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--orange);
  margin-bottom: 10px;
}
.price .ref {
  display: block;
  font-size: 13px;
  color: var(--dim);
  margin-bottom: 4px;
}
.price .ref s { text-decoration-color: var(--orange); }
.price .amount {
  display: block;
  font: 500 clamp(40px, 4.6vw, 58px)/1 var(--serif);
  letter-spacing: -.035em;
  color: var(--orange);
}
.price[hidden], .price .ref[hidden], .price .label[hidden] { display: none; }

.offer__details {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 11px 24px;
  margin: 0 0 28px;
  color: var(--muted);
  font-size: 13px;
}
.offer__details li { display: flex; gap: 10px; }
.offer__details li::before { content: '✓'; color: var(--orange); flex: none; }

.secure {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 14px 0 0;
  font-size: 11.5px;
  color: var(--dim);
}
.secure svg { width: 13px; height: 13px; flex: none; opacity: .8; }

/* -------------------------------------------------------------------- FAQ */
.faq-grid {
  display: grid;
  grid-template-columns: minmax(0, .72fr) minmax(0, 1.28fr);
  gap: clamp(28px, 5vw, 70px);
  align-items: start;
}
.faq-grid > div:first-child { position: sticky; top: 110px; }
.faq-grid h2 { margin-bottom: 0; }
.faq-list { border-top: 1px solid var(--line); }
.faq-list details { border-bottom: 1px solid var(--line); }
.faq-list summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 24px;
  padding: 22px 0;
  font: 500 clamp(17px, 1.5vw, 21px)/1.35 var(--serif);
  letter-spacing: -.015em;
  transition: color .2s var(--ease);
}
.faq-list summary:hover { color: var(--amber); }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary .sign {
  position: relative;
  flex: none;
  width: 18px;
  height: 18px;
  margin-top: 6px;
  transition: rotate .3s var(--ease);
}
.faq-list summary .sign::before,
.faq-list summary .sign::after {
  content: '';
  position: absolute;
  inset: 50% 0 auto;
  height: 1.5px;
  background: var(--orange);
  border-radius: 2px;
}
.faq-list summary .sign::after { rotate: 90deg; transition: opacity .3s var(--ease); }
.faq-list details[open] summary .sign { rotate: 45deg; }
.faq-list .answer { overflow: hidden; transition: height .34s var(--ease); }
.faq-list .answer p {
  margin: 0;
  padding: 0 60px 24px 0;
  color: var(--muted);
  font-size: 14.5px;
  line-height: 1.68;
  max-width: 68ch;
}

/* ----------------------------------------------------------------- final */
.final { text-align: left; }
.final h2 { max-width: 18ch; font-size: clamp(34px, 4.4vw, 60px); }
.final .lead { margin-bottom: 26px; }
.final .amount {
  display: block;
  margin: 0 0 24px;
  font: 500 clamp(28px, 3vw, 38px)/1 var(--serif);
  color: var(--orange);
  letter-spacing: -.03em;
}

/* ---------------------------------------------------------------- rodapé */
footer {
  border-top: 1px solid var(--line);
  background: var(--ink-2);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 28px 40px;
  align-items: start;
  padding-block: 46px 56px;
  color: var(--dim);
}
.footer-grid small {
  display: block;
  max-width: 62ch;
  margin-top: 18px;
  font-size: 10.5px;
  line-height: 1.6;
}
.footer-grid .who { margin: 14px 0 0; font-size: 12.5px; color: var(--muted); }
.footer-grid nav { display: flex; flex-direction: column; gap: 10px; font: 500 10.5px/1 var(--mono); letter-spacing: .1em; text-align: right; }
.footer-grid nav a { color: var(--muted); transition: color .2s var(--ease); }
.footer-grid nav a:hover { color: var(--orange); }

/* ------------------------------------------------------- CTA fixo mobile */
.sticky-cta {
  display: none;
  position: fixed;
  z-index: 30;
  left: 0; right: 0; bottom: 0;
  align-items: center;
  justify-content: space-between;
  min-height: 60px;
  padding: 0 20px env(safe-area-inset-bottom);
  background: var(--orange);
  color: #fff;
  font: 700 11px/1 var(--mono);
  letter-spacing: .08em;
  border-radius: 16px 16px 0 0;
  box-shadow: 0 -10px 30px rgba(0, 0, 0, .4);
  opacity: 0;
  pointer-events: none;
  translate: 0 110%;
  transition: opacity .28s var(--ease), translate .28s var(--ease);
}
.sticky-cta span { font-size: 18px; }
.sticky-cta.is-visible { opacity: 1; pointer-events: auto; translate: 0 0; }

/* ------------------------------------------------------------- cookies -- */
.cookie-banner {
  position: fixed;
  z-index: 35;
  left: 20px;
  bottom: 20px;
  max-width: 430px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px;
  padding: 16px 18px;
  background: rgba(12, 28, 40, .94);
  backdrop-filter: blur(14px);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: 0 20px 44px rgba(0, 0, 0, .45);
  color: var(--muted);
  font-size: 12.5px;
  line-height: 1.5;
}
.cookie-banner p { margin: 0; flex: 1 1 200px; }
.cookie-banner div { display: flex; gap: 9px; }
.cookie-banner button {
  cursor: pointer;
  padding: 9px 13px;
  border-radius: 10px;
  border: 1px solid var(--orange-dim);
  background: transparent;
  color: var(--cream);
  font: 500 9.5px/1 var(--mono);
  letter-spacing: .12em;
  transition: background .2s var(--ease), border-color .2s var(--ease);
}
.cookie-banner button:hover { border-color: var(--orange); background: rgba(255, 90, 20, .1); }
.cookie-banner button:last-child { background: var(--orange); border-color: var(--orange); color: #fff; }
.cookie-banner button:last-child:hover { filter: brightness(1.08); }

/* ----------------------------------------------------- revelar ao rolar -- */
.js .reveal {
  opacity: 0;
  translate: 0 22px;
  transition: opacity .7s var(--ease), translate .7s var(--ease);
  transition-delay: var(--delay, 0ms);
}
.js .reveal.is-in { opacity: 1; translate: 0 0; }

/* 8. RESPONSIVO ========================================================== */
@media (max-width: 1020px) {
  .topics { grid-template-columns: 1fr 1fr; }
  .flow { grid-template-columns: repeat(3, 1fr); }
  .flow li:nth-child(3)::after { content: none; }
  .math-notes { grid-template-columns: 1fr; }
}

@media (max-width: 860px) {
  .hero {
    grid-template-columns: 1fr;
    min-height: 0;
  }
  .hero__copy {
    padding: clamp(46px, 10vw, 76px) var(--gutter) clamp(48px, 9vw, 70px);
  }
  /* no mobile o manual sai do topo: a mensagem entra primeiro, e a foto
     reaparece na seção de oferta. O <picture> no HTML evita o download. */
  .hero__media { display: none; }
  .split, .audience, .offer { grid-template-columns: 1fr; }
  .offer__art { max-width: 340px; aspect-ratio: 3 / 4; }
  .mac { grid-template-columns: 1fr; }
  .mac article { padding: 24px 0; display: grid; grid-template-columns: 76px 1fr; column-gap: 18px; }
  .mac article + article { border-left: 0; border-top: 1px solid var(--line); padding-left: 0; }
  .mac b { grid-row: 1 / 3; font-size: 58px; }
  .mac h3 { margin: 2px 0 6px; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-grid nav { flex-direction: row; gap: 20px; text-align: left; }
}

@media (max-width: 680px) {
  body { padding-bottom: calc(62px + env(safe-area-inset-bottom)); }
  .site-header .btn-ghost { display: none; }
  .sticky-cta { display: flex; }
  .ticker ul { grid-template-columns: 1fr 1fr; }
  .ticker li { padding: 18px 16px; border-top: 1px solid var(--line); }
  .ticker li:nth-child(-n+2) { border-top: 0; }
  .ticker li:nth-child(odd) { border-left: 0; padding-left: 0; }
  .topics { grid-template-columns: 1fr; }
  .flow { grid-template-columns: 1fr 1fr; }
  .flow li::after { content: none !important; }
  .calc { grid-template-columns: 1fr; }
  .calc small { min-height: 0; }
  .stats { grid-template-columns: 1fr 1fr; }
  .stats div { padding: 22px 16px; border-left: 0; }
  .stats div:nth-child(even) { border-left: 1px solid var(--line); }
  .stats div:nth-child(n+3) { border-top: 1px solid var(--line); }
  .stats div:first-child, .stats div:nth-child(3) { padding-left: 0; }
  .audience ul { padding-top: 0; }
  .offer__details { grid-template-columns: 1fr; }
  .faq-list .answer p { padding-right: 20px; }
  .btn { width: 100%; }
  .cookie-banner {
    left: 12px;
    right: 12px;
    max-width: none;
    bottom: calc(76px + env(safe-area-inset-bottom));
  }
}

@media (max-width: 400px) {
  .hero h1 { font-size: 33px; }
}

@media (max-width: 340px) {
  .ticker ul { grid-template-columns: 1fr; }
  .ticker li { border-left: 0; padding-left: 0; border-top: 1px solid var(--line); }
  .ticker li:first-child { border-top: 0; }
}

/* preferências do sistema ------------------------------------------------ */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: .01ms !important;
    transition-duration: .01ms !important;
  }
  .js .reveal { opacity: 1; translate: none; }
}

@media print {
  .site-header, .sticky-cta, .cookie-banner, .hero__media { display: none; }
  body { background: #fff; color: #000; }
}

/* subtítulo serif sob um H2 --------------------------------------------- */
.subhead {
  margin: -8px 0 22px;
  font: 500 clamp(20px, 2vw, 28px)/1.25 var(--serif);
  letter-spacing: -.02em;
  color: var(--orange);
  max-width: 24ch;
}

@media (max-width: 860px) {
  .faq-grid { grid-template-columns: 1fr; }
  .faq-grid > div:first-child { position: static; }
}

/* páginas legais --------------------------------------------------------- */
.legal { max-width: 760px; padding-block: clamp(40px, 6vw, 72px) clamp(64px, 9vw, 110px); }
.legal .brand { margin-bottom: clamp(40px, 6vw, 64px); }
.legal h1 { font-size: clamp(34px, 4.2vw, 50px); margin-bottom: 10px; }
.legal .updated { font: 500 10px/1 var(--mono); letter-spacing: .16em; text-transform: uppercase; color: var(--dim); margin: 0 0 clamp(32px, 4vw, 46px); }
.legal h2 { font-size: clamp(21px, 2.1vw, 26px); margin: 40px 0 10px; }
.legal p, .legal li { color: var(--muted); font-size: 15px; line-height: 1.7; }
.legal ul { display: grid; gap: 8px; margin: 0 0 16px; }
.legal li { display: flex; gap: 10px; }
.legal li::before { content: '—'; color: var(--orange); flex: none; }
.legal .back { display: inline-flex; align-items: center; gap: 9px; margin-top: 46px; padding-top: 26px; border-top: 1px solid var(--line); color: var(--orange); font: 500 11px/1 var(--mono); letter-spacing: .12em; }