/* ==========================================================================
   S³ LABS — Design System "Grafite & Âmbar"
   Consultoria em Dados & Business Analytics
   --------------------------------------------------------------------------
   Registro editorial: serif de display, sans neutra no corpo, mono para
   dados. O âmbar é acento tipográfico — nunca preenchimento decorativo.
   Contrastes (sobre #0C0C0D): ink 16.4:1 · ink-2 7.5:1 · âmbar 7.1:1
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Newsreader:ital,opsz,wght@0,6..72,300..600;1,6..72,300..500&family=Inter:wght@400;500;600&family=IBM+Plex+Mono:wght@400;500&display=swap');

/* --------------------------------------------------------------- tokens -- */
:root {
  /* superfícies — grafite neutro, sem viés azul ou verde */
  --bg:          #0C0C0D;
  --surface:     #17171A;
  --surface-2:   #1F1F23;
  --surface-3:   #292930;
  --line:        rgba(237, 235, 231, .09);
  --line-2:      rgba(237, 235, 231, .16);
  --line-3:      rgba(237, 235, 231, .26);

  /* tinta — off-white cálido, não branco puro */
  --ink:         #EDEBE7;
  --ink-2:       #A3A099;
  --ink-3:       #8A867D;

  /* acento — âmbar queimado, com parcimônia */
  --amber:       #C0954A;
  --amber-2:     #D4A860;
  --amber-3:     #9A7538;
  --amber-a08:   rgba(192, 149, 74, .08);
  --amber-a14:   rgba(192, 149, 74, .14);
  --amber-a30:   rgba(192, 149, 74, .30);

  /* institucional — o azul do logo S³, restrito ao wordmark e a detalhes */
  --steel:       #5B87E8;

  /* séries de dados */
  --s1:          #C0954A;
  --s2:          #5B87E8;
  --s3:          #8A867D;

  /* tipografia */
  --serif:       'Newsreader', ui-serif, Georgia, 'Times New Roman', serif;
  --sans:        'Inter', system-ui, -apple-system, 'Segoe UI', sans-serif;
  --mono:        'IBM Plex Mono', ui-monospace, 'SFMono-Regular', Menlo, monospace;

  /* geometria — editorial: raios discretos, hairlines */
  --r-sm:        3px;
  --r:           6px;
  --r-lg:        10px;
  --maxw:        1240px;
  --gutter:      clamp(1.25rem, 4vw, 3.5rem);

  /* movimento — contido */
  --ease:        cubic-bezier(.22, 1, .36, 1);
  --ease-out:    cubic-bezier(.16, 1, .3, 1);

  --nav-h:       74px;
}

/* ---------------------------------------------------------------- reset -- */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--nav-h) + 20px);
}

body {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.65;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: clip;
}

img, svg, video, canvas { display: block; max-width: 100%; }
img { height: auto; }
a { color: inherit; text-decoration: none; }
button, input, select, textarea { font: inherit; color: inherit; }
button { background: none; border: 0; cursor: pointer; }
ul, ol { list-style: none; padding: 0; }
:focus-visible { outline: 2px solid var(--amber); outline-offset: 3px; border-radius: 2px; }
::selection { background: var(--amber); color: #0C0C0D; }

/* grade editorial — apenas insinuada, e nunca atravessando o texto */
.grid-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image: linear-gradient(to right, var(--line) 1px, transparent 1px);
  background-size: 25% 100%;
  opacity: .5;
  mask-image: linear-gradient(to bottom, #000 0%, transparent 34%, transparent 100%);
  -webkit-mask-image: linear-gradient(to bottom, #000 0%, transparent 34%, transparent 100%);
}

/* ----------------------------------------------------------- utilitários -- */
.wrap { width: 100%; max-width: var(--maxw); margin-inline: auto; padding-inline: var(--gutter); }
.section { position: relative; padding-block: clamp(4.5rem, 10vw, 8.5rem); }
.section--tight { padding-block: clamp(3rem, 6vw, 5rem); }
.section--line { border-top: 1px solid var(--line); }
.hairline { height: 1px; background: var(--line); border: 0; }

/* --------------------------------------------------------- tipografia --- */
/* eyebrow: mono, tracking largo — a "ficha técnica" do editorial */
.eyebrow {
  display: block;
  font-family: var(--mono);
  font-size: .67rem;
  font-weight: 500;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--amber);
}
.eyebrow--muted { color: var(--ink-3); }

/* rótulo de seção com numeral, separado por fio */
.sec-label {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding-bottom: 1rem;
  margin-bottom: clamp(1.75rem, 3.5vw, 2.75rem);
  border-bottom: 1px solid var(--line);
}
.sec-label__n { font-family: var(--mono); font-size: .67rem; letter-spacing: .16em; color: var(--ink-3); }
.sec-label__t { font-family: var(--mono); font-size: .67rem; letter-spacing: .2em; text-transform: uppercase; color: var(--amber); }
.sec-label__r { margin-left: auto; font-family: var(--mono); font-size: .67rem; letter-spacing: .1em; color: var(--ink-3); }
@media (max-width: 640px) { .sec-label__r { display: none; } }

/* display serif — peso leve em tamanho grande é o que dá elegância */
.display {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(2.6rem, 6.6vw, 5.1rem);
  line-height: 1.03;
  letter-spacing: -.02em;
  text-wrap: balance;
}
.h1 {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(1.9rem, 3.9vw, 3.1rem);
  line-height: 1.12;
  letter-spacing: -.015em;
  text-wrap: balance;
}
.h2 {
  font-family: var(--serif);
  font-weight: 500;
  font-size: clamp(1.25rem, 2vw, 1.6rem);
  line-height: 1.22;
  letter-spacing: -.01em;
}
.h3 { font-family: var(--sans); font-weight: 600; font-size: .98rem; line-height: 1.35; letter-spacing: -.005em; }

/* ênfase: itálico serif, não cor — mais sóbrio */
.em { font-style: italic; color: var(--ink); }
.em-amber { font-style: italic; color: var(--amber); }

.lead { font-size: clamp(1rem, 1.25vw, 1.12rem); color: var(--ink-2); line-height: 1.7; max-width: 60ch; }
.muted { color: var(--ink-2); }
.small { font-size: .875rem; }
.mono { font-family: var(--mono); }
.amber { color: var(--amber); }

/* ------------------------------------------------------------- botões --- */
.btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .55rem;
  padding: .8rem 1.45rem;
  font-size: .875rem;
  font-weight: 500;
  letter-spacing: -.005em;
  border: 1px solid var(--line-2);
  border-radius: var(--r-sm);
  color: var(--ink);
  transition: background-color .32s var(--ease), color .32s var(--ease), border-color .32s var(--ease);
}
.btn svg { width: 14px; height: 14px; flex: none; transition: transform .32s var(--ease); }
.btn:hover svg { transform: translateX(3px); }

/* primário: off-white sólido — sobriedade máxima, o âmbar fica para o texto */
.btn--primary { background: var(--ink); color: #0C0C0D; border-color: var(--ink); font-weight: 600; }
.btn--primary:hover { background: #fff; border-color: #fff; }

.btn--ghost:hover { background: rgba(237, 235, 231, .05); border-color: var(--line-3); }
.btn--sm { padding: .55rem 1rem; font-size: .82rem; }
.btn--block { width: 100%; }

/* link com fio que se estende */
.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: .45rem;
  font-size: .86rem;
  font-weight: 500;
  color: var(--amber);
  position: relative;
  padding-bottom: 2px;
}
.link-arrow svg { width: 13px; height: 13px; transition: transform .32s var(--ease); }
.link-arrow::after {
  content: '';
  position: absolute;
  left: 0; bottom: 0;
  width: 100%; height: 1px;
  background: currentColor;
  opacity: .45;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .38s var(--ease), opacity .38s var(--ease);
}
.link-arrow:hover::after { transform: scaleX(1); opacity: 1; }
.link-arrow:hover svg { transform: translateX(3px); }

/* --------------------------------------------------------------- tags --- */
.tag {
  display: inline-flex;
  align-items: center;
  font-family: var(--mono);
  font-size: .68rem;
  font-weight: 400;
  letter-spacing: .04em;
  padding: .26rem .5rem;
  color: var(--ink-2);
  border: 1px solid var(--line);
  border-radius: var(--r-sm);
  white-space: nowrap;
}
.tag--amber { color: var(--amber); border-color: var(--amber-a30); }
.tag--steel { color: var(--steel); border-color: rgba(91, 135, 232, .3); }

/* disponibilidade — sem pulso berrante, só um ponto */
.status {
  display: inline-flex;
  align-items: center;
  gap: .55rem;
  font-family: var(--mono);
  font-size: .68rem;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--ink-2);
}
.status i {
  width: 5px; height: 5px;
  border-radius: 50%;
  background: var(--amber);
  flex: none;
  box-shadow: 0 0 0 3px var(--amber-a14);
}

/* =========================================================== NAVBAR ==== */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 900;
  height: var(--nav-h);
  display: flex;
  align-items: center;
  border-bottom: 1px solid transparent;
  transition: background-color .35s var(--ease), border-color .35s var(--ease), height .35s var(--ease);
}
.nav.is-stuck {
  height: 62px;
  background: rgba(12, 12, 13, .86);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom-color: var(--line);
}
.nav__inner { width: 100%; max-width: var(--maxw); margin-inline: auto; padding-inline: var(--gutter); display: flex; align-items: center; justify-content: space-between; gap: 1.5rem; }

.brand { display: inline-flex; align-items: center; gap: .6rem; flex: none; }
.brand__mark { width: 27px; height: 27px; object-fit: contain; }
.brand__word {
  font-family: var(--sans);
  font-weight: 600;
  font-size: .96rem;
  letter-spacing: .1em;
  line-height: 1;
  white-space: nowrap;
}
.brand__word sup { color: var(--steel); font-size: .6em; top: -.5em; position: relative; }
.brand__sub {
  display: block;
  font-family: var(--mono);
  font-size: .5rem;
  letter-spacing: .2em;
  color: var(--ink-3);
  margin-top: .25rem;
  text-transform: uppercase;
}

.nav__links { display: flex; align-items: center; gap: .1rem; }
.nav__link {
  position: relative;
  padding: .5rem .75rem;
  font-size: .855rem;
  color: var(--ink-2);
  transition: color .28s var(--ease);
}
.nav__link::before {
  content: '';
  position: absolute;
  left: .75rem; right: .75rem; bottom: .3rem;
  height: 1px;
  background: var(--amber);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .35s var(--ease);
}
.nav__link:hover { color: var(--ink); }
.nav__link:hover::before, .nav__link.is-active::before { transform: scaleX(1); }
.nav__link.is-active { color: var(--ink); }

.nav__cta { display: flex; align-items: center; gap: .6rem; flex: none; }
.nav__burger { display: none; width: 40px; height: 40px; align-items: center; justify-content: center; border: 1px solid var(--line-2); border-radius: var(--r-sm); }
.nav__burger span { display: block; width: 16px; height: 1px; background: var(--ink); position: relative; transition: background-color .2s; }
.nav__burger span::before, .nav__burger span::after {
  content: ''; position: absolute; left: 0; width: 16px; height: 1px; background: var(--ink);
  transition: transform .35s var(--ease);
}
.nav__burger span::before { top: -5px; }
.nav__burger span::after { top: 5px; }
body.menu-open .nav__burger span { background: transparent; }
body.menu-open .nav__burger span::before { transform: translateY(5px) rotate(45deg); }
body.menu-open .nav__burger span::after { transform: translateY(-5px) rotate(-45deg); }

@media (max-width: 1020px) {
  .nav__links { display: none; }
  .nav__cta .btn { display: none; }
  .nav__burger { display: inline-flex; }
}

.scroll-progress {
  position: fixed;
  top: 0; left: 0;
  height: 1px;
  width: 100%;
  transform: scaleX(0);
  transform-origin: left;
  background: var(--amber);
  z-index: 950;
  pointer-events: none;
}

/* menu mobile */
.mobile-menu {
  position: fixed;
  inset: 0;
  z-index: 890;
  background: rgba(12, 12, 13, .98);
  backdrop-filter: blur(18px);
  display: grid;
  align-content: center;
  padding: 6rem var(--gutter) 3rem;
  opacity: 0;
  visibility: hidden;
  transition: opacity .35s var(--ease), visibility .35s;
}
body.menu-open .mobile-menu { opacity: 1; visibility: visible; }
.mobile-menu__list { display: grid; }
.mobile-menu__link {
  display: flex;
  align-items: baseline;
  gap: 1.1rem;
  padding: .95rem 0;
  font-family: var(--serif);
  font-size: clamp(1.6rem, 7vw, 2.3rem);
  font-weight: 400;
  border-bottom: 1px solid var(--line);
  opacity: 0;
  transform: translateY(14px);
}
body.menu-open .mobile-menu__link { animation: menuIn .55s var(--ease) forwards; }
.mobile-menu__link i { font-family: var(--mono); font-size: .68rem; color: var(--amber); font-style: normal; }
@keyframes menuIn { to { opacity: 1; transform: translateY(0); } }
.mobile-menu__foot { margin-top: 2.5rem; display: flex; flex-wrap: wrap; gap: .7rem; }

/* ============================================================= HERO ==== */
.hero {
  position: relative;
  min-height: min(88svh, 860px);
  display: flex;
  align-items: center;
  padding-top: calc(var(--nav-h) + clamp(2.5rem, 6vw, 5rem));
  padding-bottom: clamp(3rem, 7vw, 5.5rem);
  overflow: hidden;
}
/* halo âmbar único, muito difuso — presença sem brilho de neon */
.hero__glow {
  position: absolute;
  top: -25%; right: -5%;
  width: 55vw; height: 55vw;
  background: radial-gradient(circle, rgba(192, 149, 74, .09), transparent 66%);
  filter: blur(70px);
  pointer-events: none;
  z-index: 0;
}
.hero__inner {
  position: relative;
  z-index: 2;
  width: 100%;
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: var(--gutter);
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 19rem);
  gap: clamp(2.5rem, 6vw, 5rem);
  align-items: center;
}
@media (max-width: 940px) { .hero__inner { grid-template-columns: 1fr; align-items: start; gap: 2.75rem; } }

.hero__title { margin-block: 1.5rem 1.75rem; }
.hero__title .line { display: block; overflow: hidden; }
.hero__title .line > span { display: block; }

/* série temporal desenhada — o "dado" do hero, discreto e temático */
.hero__chart { width: 100%; max-width: 33rem; height: auto; margin-top: 2.75rem; opacity: .9; }
.hero__chart .axis { stroke: var(--line-2); stroke-width: 1; }
.hero__chart .grid { stroke: var(--line); stroke-width: 1; }
.hero__chart .series {
  fill: none;
  stroke: var(--amber);
  stroke-width: 1.5;
  stroke-linecap: round;
  stroke-dasharray: 1000;
  stroke-dashoffset: 1000;
}
.hero__chart.is-in .series { animation: draw 2.4s var(--ease-out) .35s forwards; }
@keyframes draw { to { stroke-dashoffset: 0; } }
.hero__chart .dot { fill: var(--amber); opacity: 0; }
.hero__chart.is-in .dot { animation: fadeIn .5s var(--ease) 2.5s forwards; }
@keyframes fadeIn { to { opacity: 1; } }
.hero__chart .lbl { font-family: var(--mono); font-size: 7px; fill: var(--ink-3); letter-spacing: .1em; }

/* ficha técnica lateral — formato de dado tabular, registro editorial */
.spec { display: grid; gap: 0; border-top: 1px solid var(--line-2); }
.spec__row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 1rem;
  align-items: baseline;
  padding: .85rem 0;
  border-bottom: 1px solid var(--line);
}
.spec__k { font-family: var(--mono); font-size: .64rem; letter-spacing: .13em; text-transform: uppercase; color: var(--ink-3); }
.spec__v { font-family: var(--serif); font-size: 1.28rem; font-weight: 400; font-variant-numeric: tabular-nums; letter-spacing: -.01em; }
.spec__v .u { color: var(--amber); }
.spec__note { margin-top: 1.1rem; font-size: .78rem; color: var(--ink-3); line-height: 1.6; }

/* ========================================================== MARQUEE ==== */
.marquee {
  position: relative;
  border-block: 1px solid var(--line);
  padding-block: .85rem;
  overflow: hidden;
  mask-image: linear-gradient(90deg, transparent, #000 10%, #000 90%, transparent);
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 10%, #000 90%, transparent);
}
.marquee__track { display: flex; width: max-content; gap: 2.75rem; animation: slide 58s linear infinite; }
.marquee:hover .marquee__track { animation-play-state: paused; }
@keyframes slide { to { transform: translateX(-50%); } }
.marquee__item {
  display: inline-flex;
  align-items: center;
  gap: .7rem;
  font-family: var(--mono);
  font-size: .74rem;
  letter-spacing: .13em;
  text-transform: uppercase;
  color: var(--ink-3);
  white-space: nowrap;
}
.marquee__item::after { content: ''; width: 3px; height: 3px; background: var(--amber); opacity: .5; border-radius: 50%; }

/* ====================================================== O PROBLEMA ===== */
/* lista de dores — o leitor precisa se reconhecer aqui */
.pains { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0; border-top: 1px solid var(--line); }
@media (max-width: 780px) { .pains { grid-template-columns: 1fr; } }
.pain {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 1.1rem;
  padding: 1.5rem 1.75rem 1.5rem 0;
  border-bottom: 1px solid var(--line);
  transition: background-color .35s var(--ease);
}
.pains .pain:nth-child(odd) { border-right: 1px solid var(--line); padding-right: 2.25rem; }
@media (max-width: 780px) { .pains .pain:nth-child(odd) { border-right: 0; padding-right: 0; } }
.pain__n { font-family: var(--mono); font-size: .66rem; color: var(--amber); padding-top: .3rem; }
.pain__t { font-family: var(--serif); font-size: 1.1rem; font-weight: 400; line-height: 1.35; margin-bottom: .4rem; }
.pain__d { font-size: .875rem; color: var(--ink-2); line-height: 1.62; }

/* bloco de conclusão — vira a página da dor para a causa */
.turn {
  margin-top: clamp(2.5rem, 5vw, 3.5rem);
  padding: clamp(1.75rem, 4vw, 2.75rem);
  border: 1px solid var(--line-2);
  border-left: 2px solid var(--amber);
  border-radius: 0 var(--r) var(--r) 0;
  background: linear-gradient(100deg, var(--amber-a08), transparent 55%);
}
.turn p { font-family: var(--serif); font-size: clamp(1.15rem, 2.1vw, 1.6rem); font-weight: 400; line-height: 1.4; text-wrap: balance; }

/* ============================================================= TESE ==== */
.thesis { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, .85fr); gap: clamp(2.5rem, 6vw, 5rem); align-items: start; }
@media (max-width: 940px) { .thesis { grid-template-columns: 1fr; } }
.thesis__body { display: grid; gap: 1.2rem; }
.thesis__body p { color: var(--ink-2); line-height: 1.75; font-size: 1.02rem; }
.thesis__body p strong { color: var(--ink); font-weight: 500; }

/* as três causas, em formato de nota de rodapé numerada */
.causes { display: grid; gap: 0; border-top: 1px solid var(--line); }
.cause { padding: 1.25rem 0; border-bottom: 1px solid var(--line); display: grid; gap: .35rem; }
.cause__n { font-family: var(--mono); font-size: .64rem; color: var(--amber); letter-spacing: .12em; }
.cause__t { font-family: var(--serif); font-size: 1.05rem; font-weight: 500; }
.cause__d { font-size: .85rem; color: var(--ink-2); line-height: 1.6; }

/* ============================================================ CARDS ==== */
.card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: .9rem;
  padding: 1.6rem;
  border: 1px solid var(--line);
  border-radius: var(--r);
  background: var(--surface);
  overflow: hidden;
  isolation: isolate;
  transition: border-color .4s var(--ease), background-color .4s var(--ease);
}
.card::before {
  content: '';
  position: absolute;
  inset: 0;
  z-index: -1;
  opacity: 0;
  background: radial-gradient(340px circle at var(--mx, 50%) var(--my, 0%), var(--amber-a08), transparent 60%);
  transition: opacity .4s var(--ease);
}
.card:hover { border-color: var(--line-2); background: var(--surface-2); }
.card:hover::before { opacity: 1; }

.card__n { font-family: var(--mono); font-size: .64rem; color: var(--ink-3); letter-spacing: .12em; }
.card__ic { color: var(--amber); }
.card__ic svg { width: 20px; height: 20px; }
.card__body { color: var(--ink-2); font-size: .9rem; line-height: 1.65; }
.card__list { display: grid; gap: .4rem; margin-top: auto; padding-top: .6rem; border-top: 1px solid var(--line); }
.card__list li { display: flex; gap: .5rem; font-size: .82rem; color: var(--ink-2); }
.card__list li::before { content: '—'; color: var(--amber); flex: none; opacity: .75; }
.card__tags { display: flex; flex-wrap: wrap; gap: .3rem; }

.grid-3 { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1rem; }
.grid-2 { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1rem; }
@media (max-width: 1000px) { .grid-3 { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 680px) { .grid-3, .grid-2 { grid-template-columns: 1fr; } }

/* =========================================================== MÉTODO ==== */
.method { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); position: relative; }
.method__rail { position: absolute; top: 0; left: 0; right: 0; height: 1px; background: var(--line); overflow: hidden; }
.method__rail i { display: block; height: 100%; width: 100%; background: var(--amber); transform: scaleX(var(--p, 0)); transform-origin: left; transition: transform 1s var(--ease); }
.step { padding: 1.75rem 1.75rem 0 0; display: grid; gap: .7rem; align-content: start; }
.step:not(:last-child) { border-right: 1px solid var(--line); }
.step__n {
  font-family: var(--mono);
  font-size: .66rem;
  letter-spacing: .14em;
  color: var(--ink-3);
  transition: color .45s var(--ease);
}
.step.is-on .step__n { color: var(--amber); }
.step__t { font-family: var(--serif); font-size: 1.18rem; font-weight: 500; line-height: 1.25; }
.step p { font-size: .875rem; color: var(--ink-2); line-height: 1.65; }
.step__out {
  margin-top: .35rem;
  padding-top: .75rem;
  border-top: 1px solid var(--line);
  font-family: var(--mono);
  font-size: .66rem;
  letter-spacing: .04em;
  color: var(--ink-3);
  line-height: 1.55;
}
.step__out b { color: var(--amber); font-weight: 400; }
@media (max-width: 900px) {
  .method { grid-template-columns: 1fr; }
  .method__rail { top: 0; bottom: 0; left: 0; right: auto; width: 1px; height: auto; }
  .method__rail i { width: 100%; height: 100%; background: var(--amber); transform: scaleY(var(--p, 0)); transform-origin: top; }
  .step { padding: 1.5rem 0 1.5rem 1.75rem; border-right: 0 !important; border-bottom: 1px solid var(--line); }
}

/* ============================================================ CASES ==== */
.filters { display: flex; flex-wrap: wrap; gap: .3rem; margin-bottom: 1.75rem; }
.filter {
  font-family: var(--mono);
  font-size: .7rem;
  letter-spacing: .1em;
  text-transform: uppercase;
  padding: .42rem .8rem;
  color: var(--ink-3);
  border: 1px solid var(--line);
  border-radius: var(--r-sm);
  transition: color .28s var(--ease), border-color .28s var(--ease), background-color .28s var(--ease);
}
.filter:hover { color: var(--ink); border-color: var(--line-2); }
.filter.is-on { color: #0C0C0D; background: var(--ink); border-color: var(--ink); }

.cases { display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); gap: 1rem; }
.case { grid-column: span 2; display: flex; flex-direction: column; border: 1px solid var(--line); border-radius: var(--r); overflow: hidden; background: var(--surface); transition: border-color .4s var(--ease); }
.case--wide { grid-column: span 3; }
.case:hover { border-color: var(--line-2); }
.case.is-hidden { display: none; }
@media (max-width: 1000px) { .cases { grid-template-columns: repeat(2, minmax(0, 1fr)); } .case, .case--wide { grid-column: span 1; } }
@media (max-width: 680px) { .cases { grid-template-columns: 1fr; } }

.case__media { position: relative; aspect-ratio: 16 / 10; overflow: hidden; background: #08080A; border-bottom: 1px solid var(--line); padding: 11px; }
.case__media img {
  width: 100%; height: 100%;
  object-fit: contain;
  object-position: center;
  border-radius: 2px;
  filter: saturate(.72) contrast(1.02) brightness(.96);
  transition: filter .5s var(--ease), transform .9s var(--ease);
}
.case:hover .case__media img { filter: saturate(.92) contrast(1.04) brightness(1); transform: scale(1.02); }
.case__badge {
  position: absolute;
  z-index: 3;
  top: .75rem; left: .75rem;
  background: rgba(12, 12, 13, .9);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}
.case__body { padding: 1.3rem; display: grid; gap: .75rem; flex: 1; align-content: start; }
.case__desc { font-size: .875rem; color: var(--ink-2); line-height: 1.62; }
.case__metrics { display: flex; flex-wrap: wrap; gap: 1.5rem; padding-block: .25rem; }
.case__metric { display: grid; gap: .1rem; }
.case__metric .v { font-family: var(--serif); font-size: 1.22rem; font-weight: 500; color: var(--amber); font-variant-numeric: tabular-nums; line-height: 1.1; }
.case__metric .k { font-family: var(--mono); font-size: .58rem; letter-spacing: .12em; text-transform: uppercase; color: var(--ink-3); }
.case__foot { margin-top: auto; padding-top: .85rem; border-top: 1px solid var(--line); display: flex; align-items: center; justify-content: space-between; gap: 1rem; flex-wrap: wrap; }

/* ============================================================ STACK ==== */
.stack { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 0; border-top: 1px solid var(--line); }
@media (max-width: 900px) { .stack { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 540px) { .stack { grid-template-columns: 1fr; } }
.stack__col { display: grid; gap: .8rem; align-content: start; padding: 1.5rem 1.5rem 1.5rem 0; border-bottom: 1px solid var(--line); }
.stack__col:not(:last-child) { border-right: 1px solid var(--line); }
@media (max-width: 900px) { .stack__col:nth-child(2n) { border-right: 0; } }
@media (max-width: 540px) { .stack__col { border-right: 0 !important; padding-right: 0; } }
.stack__col h3 { font-family: var(--mono); font-size: .65rem; letter-spacing: .16em; text-transform: uppercase; color: var(--amber); font-weight: 500; }
.stack__items { display: flex; flex-wrap: wrap; gap: .3rem; }

/* =========================================================== FUNDADOR == */
.founder { display: grid; grid-template-columns: minmax(0, .78fr) minmax(0, 1.22fr); gap: clamp(2.5rem, 6vw, 4.5rem); align-items: start; }
@media (max-width: 940px) { .founder { grid-template-columns: 1fr; } }

/* o retrato aparece uma única vez no site — aqui */
.founder__aside { position: sticky; top: calc(var(--nav-h) + 28px); display: grid; gap: 1.5rem; }
@media (max-width: 940px) { .founder__aside { position: static; } }
.portrait {
  position: relative;
  aspect-ratio: 4 / 5;
  border: 1px solid var(--line-2);
  border-radius: var(--r);
  overflow: hidden;
  background: linear-gradient(180deg, var(--surface-2), #08080A);
}
/* o gradiente precisa segurar a legenda mesmo sobre a camisa clara da foto */
.portrait::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(12, 12, 13, .96) 0%, rgba(12, 12, 13, .8) 14%, transparent 42%);
  pointer-events: none;
}
/* a folga inferior absorve o parallax: a imagem sobe sem descolar da base */
.portrait img {
  position: absolute;
  left: 50%;
  bottom: -10%;
  width: 102%;
  transform: translateX(-50%) translateY(var(--py, 0px));
  filter: grayscale(.28) contrast(1.04);
  will-change: transform;
}
.portrait__cap {
  position: absolute;
  z-index: 2;
  bottom: 0; left: 0; right: 0;
  padding: 1rem 1.1rem;
  display: grid;
  gap: .15rem;
}
.portrait__cap .n { font-family: var(--serif); font-size: 1.1rem; font-weight: 500; }
.portrait__cap .r { font-family: var(--mono); font-size: .6rem; letter-spacing: .14em; text-transform: uppercase; color: var(--amber); }

.founder__facts { display: grid; gap: 0; border-top: 1px solid var(--line); }
.founder__fact { display: grid; grid-template-columns: auto 1fr; gap: 1rem; padding: .7rem 0; border-bottom: 1px solid var(--line); align-items: baseline; }
.founder__fact .k { font-family: var(--mono); font-size: .6rem; letter-spacing: .13em; text-transform: uppercase; color: var(--ink-3); }
.founder__fact .v { font-size: .85rem; text-align: right; }

.prose { display: grid; gap: 1.15rem; }
.prose p { color: var(--ink-2); line-height: 1.78; font-size: 1.02rem; }
.prose p strong { color: var(--ink); font-weight: 500; }
/* citação editorial: serif grande, sem caixa colorida */
.prose blockquote,
.thesis__body blockquote {
  margin: .6rem 0;
  padding-left: 1.4rem;
  border-left: 1px solid var(--amber);
  font-family: var(--serif);
  font-size: clamp(1.1rem, 1.9vw, 1.4rem);
  font-style: italic;
  font-weight: 400;
  line-height: 1.45;
  color: var(--ink);
}

/* trajetória */
.timeline { display: grid; margin-top: 2rem; border-top: 1px solid var(--line); }
.tl { display: grid; grid-template-columns: 132px minmax(0, 1fr); gap: 0 1.5rem; padding: 1.2rem 0; border-bottom: 1px solid var(--line); }
.tl__when { font-family: var(--mono); font-size: .64rem; letter-spacing: .05em; color: var(--ink-3); padding-top: .25rem; }
.tl__what { display: grid; gap: .25rem; }
.tl__role { font-size: .95rem; font-weight: 600; }
.tl__org { font-family: var(--mono); font-size: .68rem; color: var(--amber); letter-spacing: .05em; }
.tl__desc { font-size: .85rem; color: var(--ink-2); line-height: 1.62; }
@media (max-width: 620px) { .tl { grid-template-columns: 1fr; gap: .3rem; } }

/* barras de proficiência — hue única, sem competir com o texto */
.meters { display: grid; gap: .8rem; }
.meter { display: grid; gap: .35rem; }
.meter__top { display: flex; justify-content: space-between; align-items: baseline; font-size: .82rem; }
.meter__top .p { font-family: var(--mono); font-size: .66rem; color: var(--ink-3); letter-spacing: .06em; }
.meter__rail { height: 2px; background: var(--surface-3); overflow: hidden; }
.meter__fill { height: 100%; width: 100%; background: var(--amber); transform: scaleX(0); transform-origin: left; transition: transform 1.1s var(--ease); }
.meter.is-on .meter__fill { transform: scaleX(var(--v, 0)); }

/* ================================================= COMO TRABALHAMOS ==== */
.engage { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1rem; }
@media (max-width: 900px) { .engage { grid-template-columns: 1fr; } }
.eng { padding: 1.6rem; border: 1px solid var(--line); border-radius: var(--r); display: grid; gap: .7rem; align-content: start; transition: border-color .4s var(--ease); }
.eng:hover { border-color: var(--line-2); }
.eng__k { font-family: var(--mono); font-size: .64rem; letter-spacing: .14em; text-transform: uppercase; color: var(--amber); }
.eng__t { font-family: var(--serif); font-size: 1.2rem; font-weight: 500; }
.eng__d { font-size: .875rem; color: var(--ink-2); line-height: 1.65; }
.eng__for { margin-top: .3rem; padding-top: .7rem; border-top: 1px solid var(--line); font-size: .78rem; color: var(--ink-3); line-height: 1.55; }

/* ============================================================== FAQ ==== */
.faq { display: grid; border-top: 1px solid var(--line); }
.faq__item { border-bottom: 1px solid var(--line); }
.faq__q {
  width: 100%;
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1.5rem;
  padding: 1.3rem 0;
  text-align: left;
  font-family: var(--serif);
  font-size: 1.08rem;
  font-weight: 400;
  color: var(--ink-2);
  transition: color .3s var(--ease);
}
.faq__q:hover, .faq__item.is-open .faq__q { color: var(--ink); }
.faq__ic { position: relative; width: 13px; height: 13px; flex: none; align-self: center; }
.faq__ic::before, .faq__ic::after { content: ''; position: absolute; background: var(--amber); transition: transform .35s var(--ease), opacity .3s; }
.faq__ic::before { top: 6px; left: 0; width: 13px; height: 1px; }
.faq__ic::after { left: 6px; top: 0; width: 1px; height: 13px; }
.faq__item.is-open .faq__ic::after { transform: rotate(90deg); opacity: 0; }
.faq__a { overflow: hidden; height: 0; transition: height .42s var(--ease); }
.faq__a > div { padding-bottom: 1.35rem; color: var(--ink-2); font-size: .93rem; line-height: 1.75; max-width: 72ch; }
.faq__a b { color: var(--ink); font-weight: 500; }

/* ========================================================== CONTATO ==== */
.cta-band {
  border: 1px solid var(--line-2);
  border-radius: var(--r);
  padding: clamp(2rem, 5vw, 3.5rem);
  background: linear-gradient(120deg, var(--amber-a08), transparent 50%), var(--surface);
  display: grid;
  gap: 1.4rem;
  justify-items: start;
}

.contact { display: grid; grid-template-columns: minmax(0, .8fr) minmax(0, 1.2fr); gap: clamp(1.75rem, 4vw, 3.5rem); align-items: start; }
@media (max-width: 940px) { .contact { grid-template-columns: 1fr; } }
.contact__panel { display: grid; gap: 0; }
.contact__row { display: grid; grid-template-columns: auto 1fr; gap: 1rem; padding: 1.1rem 0; border-bottom: 1px solid var(--line); align-items: start; }
.contact__panel .contact__row:first-child { border-top: 1px solid var(--line); }
.contact__ic { color: var(--amber); padding-top: .15rem; }
.contact__ic svg { width: 16px; height: 16px; }
.contact__row .k { font-family: var(--mono); font-size: .6rem; letter-spacing: .14em; text-transform: uppercase; color: var(--ink-3); display: block; margin-bottom: .25rem; }
.contact__row .v { font-size: .92rem; word-break: break-word; }
.contact__row a.v:hover { color: var(--amber); }

.form { display: grid; gap: 1rem; padding: clamp(1.5rem, 3vw, 2.25rem); border: 1px solid var(--line); border-radius: var(--r); background: var(--surface); }
.form__grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
@media (max-width: 620px) { .form__grid { grid-template-columns: 1fr; } }
.field { display: grid; gap: .4rem; }
.field label { font-family: var(--mono); font-size: .61rem; letter-spacing: .14em; text-transform: uppercase; color: var(--ink-3); }
.field label .req { color: var(--amber); }
.input {
  width: 100%;
  padding: .78rem .9rem;
  font-size: .92rem;
  background: #08080A;
  border: 1px solid var(--line-2);
  border-radius: var(--r-sm);
  transition: border-color .28s var(--ease), box-shadow .28s var(--ease);
}
.input::placeholder { color: var(--ink-3); }
.input:hover { border-color: var(--line-3); }
.input:focus { outline: none; border-color: var(--amber); box-shadow: 0 0 0 3px var(--amber-a14); }
textarea.input { resize: vertical; min-height: 118px; }
select.input { appearance: none; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%238A867D' stroke-width='1.6'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right .85rem center; background-size: 15px; padding-right: 2.4rem; }
select.input option { background: var(--surface); color: var(--ink); }
.form__note { font-size: .74rem; color: var(--ink-3); line-height: 1.6; }
.form__note a { color: var(--amber); }

/* =========================================================== FOOTER ==== */
.footer { border-top: 1px solid var(--line); padding-top: clamp(3rem, 6vw, 4.5rem); }
.footer__top { display: grid; grid-template-columns: minmax(0, 1.5fr) repeat(2, minmax(0, 1fr)); gap: 2.5rem; padding-bottom: 3rem; }
@media (max-width: 820px) { .footer__top { grid-template-columns: 1fr 1fr; } .footer__brand { grid-column: 1 / -1; } }
.footer__brand { display: grid; gap: 1.1rem; align-content: start; max-width: 36ch; }
.footer__col h4 { font-family: var(--mono); font-size: .62rem; letter-spacing: .16em; text-transform: uppercase; color: var(--ink-3); margin-bottom: 1rem; font-weight: 500; }
.footer__col ul { display: grid; gap: .55rem; }
.footer__col a { font-size: .875rem; color: var(--ink-2); transition: color .28s var(--ease); }
.footer__col a:hover { color: var(--amber); }
.footer__social { display: flex; gap: .5rem; }
.footer__social a { width: 36px; height: 36px; display: grid; place-items: center; border: 1px solid var(--line-2); border-radius: var(--r-sm); color: var(--ink-2); transition: color .3s var(--ease), border-color .3s var(--ease); }
.footer__social a:hover { color: var(--amber); border-color: var(--amber-a30); }
.footer__social svg { width: 15px; height: 15px; }
.footer__bottom { border-top: 1px solid var(--line); padding-block: 1.5rem; display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: .8rem; font-size: .78rem; color: var(--ink-3); }
.footer__bottom .mono { letter-spacing: .06em; }

/* ========================================================== WHATSAPP ==== */
/* botão flutuante: discreto em repouso, verde do WhatsApp só no hover — o
   ícone já carrega o reconhecimento, então a cor não precisa berrar */
.wa {
  position: fixed;
  z-index: 870;
  right: clamp(1rem, 3vw, 2rem);
  bottom: clamp(1rem, 3vw, 2rem);
  display: inline-flex;
  align-items: center;
  gap: .6rem;
  height: 52px;
  padding: 0 16px;
  border: 1px solid var(--line-2);
  border-radius: 100px;
  background: rgba(23, 23, 26, .92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  color: var(--ink);
  box-shadow: 0 14px 34px -14px rgba(0, 0, 0, .9);
  opacity: 0;
  visibility: hidden;
  transform: translateY(14px);
  transition: opacity .45s var(--ease), transform .45s var(--ease),
              visibility .45s, background-color .3s var(--ease),
              border-color .3s var(--ease), color .3s var(--ease);
}
.wa.is-visible { opacity: 1; visibility: visible; transform: none; }
.wa:hover {
  background: #25D366;
  border-color: #25D366;
  color: #0C0C0D;
}
.wa svg { width: 22px; height: 22px; flex: none; }

/* o rótulo só existe onde há espaço para ele */
.wa__label {
  font-size: .86rem;
  font-weight: 500;
  white-space: nowrap;
  max-width: 0;
  overflow: hidden;
  opacity: 0;
  transition: max-width .42s var(--ease), opacity .32s var(--ease);
}
.wa:hover .wa__label, .wa:focus-visible .wa__label { max-width: 11rem; opacity: 1; }

@media (max-width: 620px) {
  .wa { height: 50px; width: 50px; padding: 0; justify-content: center; }
  .wa__label { display: none; }
}
@media (prefers-reduced-motion: reduce) {
  .wa { transition: none; }
  .wa__label { transition: none; }
}

/* ============================================================ MODAIS ==== */
.modal {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: grid;
  place-items: center;
  padding: clamp(.75rem, 3vw, 2rem);
  background: rgba(8, 8, 10, .85);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  opacity: 0;
  visibility: hidden;
  transition: opacity .32s var(--ease), visibility .32s;
}
.modal.is-open { opacity: 1; visibility: visible; }
.modal__box {
  width: min(100%, 900px);
  max-height: 90svh;
  overflow-y: auto;
  overscroll-behavior: contain;
  background: var(--surface);
  border: 1px solid var(--line-2);
  border-radius: var(--r);
  transform: translateY(16px);
  transition: transform .4s var(--ease);
}
.modal.is-open .modal__box { transform: none; }
.modal__head { position: sticky; top: 0; z-index: 3; display: flex; align-items: start; justify-content: space-between; gap: 1.5rem; padding: 1.4rem clamp(1.2rem, 3vw, 2rem); background: rgba(23, 23, 26, .96); backdrop-filter: blur(8px); border-bottom: 1px solid var(--line); }
.modal__close { width: 36px; height: 36px; display: grid; place-items: center; border: 1px solid var(--line-2); border-radius: var(--r-sm); color: var(--ink-2); flex: none; transition: color .28s, border-color .28s; }
.modal__close:hover { color: var(--ink); border-color: var(--line-3); }
.modal__close svg { width: 14px; height: 14px; }
.modal__body { padding: clamp(1.2rem, 3vw, 2rem); display: grid; gap: 1.6rem; }
.modal__shot { border: 1px solid var(--line); border-radius: var(--r-sm); overflow: hidden; background: #08080A; }
.modal__shot img { width: 100%; }
.modal__section h4 { font-family: var(--mono); font-size: .64rem; letter-spacing: .16em; text-transform: uppercase; color: var(--amber); margin-bottom: .7rem; font-weight: 500; }
.modal__section p, .modal__section li { color: var(--ink-2); font-size: .92rem; line-height: 1.72; }
.modal__section ul { display: grid; gap: .45rem; }
.modal__section ul li { display: flex; gap: .6rem; }
.modal__section ul li::before { content: '—'; color: var(--amber); flex: none; opacity: .75; }
.modal__section b { color: var(--ink); font-weight: 500; }
.modal__foot { display: flex; flex-wrap: wrap; gap: .7rem; }
.modal__kpis { display: grid; grid-template-columns: repeat(auto-fit, minmax(135px, 1fr)); gap: 0; border-top: 1px solid var(--line); }
.kpi { padding: 1.1rem 1.1rem 1.1rem 0; border-bottom: 1px solid var(--line); display: grid; gap: .2rem; }
.kpi:not(:last-child) { border-right: 1px solid var(--line); padding-right: 1.1rem; }
.kpi .v { font-family: var(--serif); font-size: 1.5rem; font-weight: 500; color: var(--amber); font-variant-numeric: tabular-nums; line-height: 1.1; }
.kpi .k { font-family: var(--mono); font-size: .58rem; letter-spacing: .12em; text-transform: uppercase; color: var(--ink-3); }

/* ==================================================== REVEAL AO ROLAR ==== */
[data-reveal] {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity .85s var(--ease-out), transform .85s var(--ease-out);
  transition-delay: var(--d, 0ms);
}
[data-reveal].is-in { opacity: 1; transform: none; }
[data-reveal="left"] { transform: translateX(-18px); }
[data-reveal="right"] { transform: translateX(18px); }
[data-reveal="fade"] { transform: none; }

.line > span { transform: translateY(103%); transition: transform 1.05s var(--ease-out); transition-delay: var(--d, 0ms); }
.line.is-in > span { transform: none; }

/* ================================================= MOVIMENTO REDUZIDO ==== */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
  }
  [data-reveal], .line > span { opacity: 1 !important; transform: none !important; }
  .portrait img { transform: translateX(-50%) !important; }
  .marquee__track { animation: none; }
  .hero__chart .series { stroke-dashoffset: 0; }
  .hero__chart .dot { opacity: 1; }
}

/* ============================================================ SCROLLBAR == */
::-webkit-scrollbar { width: 9px; height: 9px; }
::-webkit-scrollbar-track { background: #08080A; }
::-webkit-scrollbar-thumb { background: var(--surface-3); border-radius: 100px; border: 2px solid #08080A; }
::-webkit-scrollbar-thumb:hover { background: #34343C; }

@media print {
  .nav, .hero__glow, .marquee, .modal, .scroll-progress { display: none !important; }
  body { background: #fff; color: #000; }
}