/* =========================================================
   LKBRITO.STUDIO
   Paleta oficial (manual de marca): #0A0A0A · #FFFFFF · #D4FF3D · #737373
   Regra 60/30/10: preto domina, branco respira, verde só em acento.
   Verde nunca é fundo de área grande.
   ========================================================= */

:root {
  --black: #0A0A0A;
  --white: #FFFFFF;
  --lime: #D4FF3D;
  --gray: #737373;

  --line-dark: rgba(255, 255, 255, .12);
  --line-light: rgba(10, 10, 10, .12);
  --text-dim: rgba(255, 255, 255, .72);

  --sans: 'Space Grotesk', system-ui, -apple-system, sans-serif;
  --serif: 'Instrument Serif', Georgia, 'Times New Roman', serif;

  --max: 1200px;
  --gutter: clamp(16px, 4vw, 40px);
  --section: clamp(88px, 12vw, 150px);
  --radius: 20px;
  --ease: cubic-bezier(.2, .7, .2, 1);
}

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

html { scroll-behavior: smooth; scroll-padding-top: 84px; -webkit-text-size-adjust: 100%; overflow-x: clip; }

body {
  margin: 0;
  background: var(--black);
  color: var(--white);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

body.menu-open { overflow: hidden; }

img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
h1, h2, h3, p, figure, ol, ul { margin: 0; }
ol, ul { padding: 0; list-style: none; }

::selection { background: var(--lime); color: var(--black); }

:focus-visible { outline: 2px solid var(--lime); outline-offset: 3px; border-radius: 4px; }

.skip-link {
  position: absolute; left: 16px; top: -60px; z-index: 200;
  background: var(--lime); color: var(--black);
  padding: 10px 16px; border-radius: 8px; font-weight: 600;
}
.skip-link:focus { top: 16px; }

.container { width: min(var(--max), 100% - 2 * var(--gutter)); margin-inline: auto; }
.narrow { width: min(880px, 100% - 2 * var(--gutter)); }

section { padding-block: var(--section); position: relative; }

.section-dark { background: var(--black); color: var(--white); }
.section-light { background: var(--white); color: var(--black); }

/* ---------- Tipografia ---------- */

h1, h2 { font-weight: 600; letter-spacing: -.035em; text-wrap: balance; }

h1 { font-size: clamp(42px, 6.2vw, 86px); line-height: 1.02; }
h2 { font-size: clamp(34px, 4.8vw, 64px); line-height: 1.04; }
h3 { font-size: 22px; font-weight: 600; letter-spacing: -.02em; line-height: 1.2; }

h1 em, h2 em, .difference__words em {
  font-family: var(--serif);
  font-style: italic;
  font-weight: 400;
  letter-spacing: -.01em;
  font-size: 1.1em;
  line-height: .9;
}

.section-dark h1 em,
.section-dark h2 em,
.difference__words em { color: var(--lime); }

/* Em fundo branco o verde não tem leitura: vira marca-texto */
.section-light h2 em {
  background: linear-gradient(transparent 62%, var(--lime) 62%, var(--lime) 92%, transparent 92%);
  padding-inline: .06em;
  -webkit-box-decoration-break: clone;
  box-decoration-break: clone;
}

.eyebrow {
  display: inline-flex; align-items: center; gap: 10px;
  font-size: 12px; font-weight: 600;
  letter-spacing: .2em; text-transform: uppercase;
  margin-bottom: 22px;
}
.eyebrow::before {
  content: ""; width: 8px; height: 8px; border-radius: 2px;
  background: var(--lime);
}
.section-dark .eyebrow { color: var(--lime); }
.section-light .eyebrow { color: var(--black); }

.section-intro { margin-bottom: clamp(48px, 7vw, 80px); max-width: 820px; }
.section-intro--split {
  max-width: none;
  display: grid; grid-template-columns: 1.4fr 1fr; gap: 32px; align-items: end;
}
.section-intro--split > p { color: var(--text-dim); font-size: 18px; max-width: 380px; justify-self: end; }

.fine-print { margin-top: 28px; font-size: 13px; color: var(--gray); }

/* ---------- Botões ---------- */

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  min-height: 54px; padding: 0 28px;
  border-radius: 999px;
  font-weight: 600; font-size: 16px; letter-spacing: -.01em;
  border: 1px solid transparent;
  transition: transform .3s var(--ease), background-color .3s, color .3s, border-color .3s, box-shadow .3s;
  white-space: nowrap;
}
.btn span { transition: transform .3s var(--ease); }
.btn:hover { transform: translateY(-2px); }
.btn:hover span { transform: translateX(4px); }

.btn--lime { background: var(--lime); color: var(--black); }
.btn--lime:hover { box-shadow: 0 12px 40px -12px rgba(212, 255, 61, .6); }

.btn--ghost { border-color: var(--line-dark); color: var(--white); }
.btn--ghost:hover { border-color: var(--white); }
.section-light .btn--ghost { border-color: var(--line-light); color: var(--black); }

.btn--large { min-height: 62px; padding: 0 34px; font-size: 17px; }

/* ---------- Header ---------- */

.site-header {
  position: fixed; inset: 0 0 auto; z-index: 100;
  display: flex; align-items: center; gap: 32px;
  padding: 18px var(--gutter);
  transition: background-color .35s, border-color .35s, padding .35s;
  border-bottom: 1px solid transparent;
}
.site-header.is-scrolled {
  background: rgba(10, 10, 10, .82);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  border-bottom-color: var(--line-dark);
  padding-block: 12px;
}

.brand img { height: 40px; width: auto; }

.desktop-nav { display: flex; gap: 30px; margin-left: auto; }
.desktop-nav a {
  font-size: 14px; color: var(--text-dim);
  transition: color .2s;
}
.desktop-nav a:hover { color: var(--white); }

.header-cta {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 10px 18px; border-radius: 999px;
  background: var(--lime); color: var(--black);
  font-size: 14px; font-weight: 600;
  transition: transform .25s var(--ease);
}
.header-cta:hover { transform: translateY(-1px); }

.menu-toggle {
  display: none;
  margin-left: auto;
  width: 44px; height: 44px;
  background: none; border: 1px solid var(--line-dark); border-radius: 50%;
  cursor: pointer; position: relative; color: var(--white);
}
.menu-toggle span {
  position: absolute; left: 13px; right: 13px; height: 1.5px; background: currentColor;
  transition: transform .3s var(--ease);
}
.menu-toggle span:first-child { top: 18px; }
.menu-toggle span:last-child { top: 24px; }
.menu-toggle[aria-expanded="true"] span:first-child { transform: translateY(3px) rotate(45deg); }
.menu-toggle[aria-expanded="true"] span:last-child { transform: translateY(-3px) rotate(-45deg); }

.mobile-menu {
  position: fixed; inset: 0; z-index: 90;
  background: var(--black);
  padding: 110px var(--gutter) 40px;
  display: flex; flex-direction: column; gap: 32px;
}
.mobile-menu[hidden] { display: none; }
.mobile-menu nav { display: flex; flex-direction: column; }
.mobile-menu nav a {
  font-size: 34px; font-weight: 600; letter-spacing: -.03em;
  padding: 14px 0; border-bottom: 1px solid var(--line-dark);
}
.mobile-menu .btn { width: 100%; }
.mobile-menu__ig { color: var(--gray); font-size: 15px; text-align: center; }

/* ---------- Hero ---------- */

.hero {
  min-height: 100svh;
  display: flex; align-items: center;
  padding-top: 130px; padding-bottom: 80px;
  overflow: hidden;
}

.hero__ambient { position: absolute; inset: 0; pointer-events: none; }
.hero__glow {
  position: absolute; width: 620px; height: 620px;
  right: -140px; top: 8%;
  background: radial-gradient(circle, rgba(212, 255, 61, .16), transparent 65%);
  filter: blur(20px);
}
.hero__grid-lines {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(var(--line-dark) 1px, transparent 1px),
    linear-gradient(90deg, var(--line-dark) 1px, transparent 1px);
  background-size: 88px 88px;
  opacity: .35;
  -webkit-mask-image: radial-gradient(ellipse at 70% 40%, #000 10%, transparent 70%);
  mask-image: radial-gradient(ellipse at 70% 40%, #000 10%, transparent 70%);
}

.hero__grid {
  position: relative;
  display: grid; grid-template-columns: 1.25fr .75fr;
  gap: clamp(40px, 6vw, 90px); align-items: center;
}

.hero__lead {
  margin-top: 28px; max-width: 560px;
  font-size: clamp(17px, 1.5vw, 20px); color: var(--text-dim);
}

.hero__actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 40px; }

.hero__proof {
  display: flex; flex-wrap: wrap; gap: 12px 28px;
  margin-top: 48px; padding-top: 24px;
  border-top: 1px solid var(--line-dark);
  font-size: 14px; color: var(--text-dim);
}
.hero__proof strong { color: var(--lime); font-weight: 600; margin-right: 4px; }

.hero__visual { position: relative; }
.hero__image-wrap {
  aspect-ratio: 4 / 5;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--line-dark);
  background: #111;
}
.hero__image-wrap img {
  width: 100%; height: 100%; object-fit: cover; object-position: 50% 30%;
  filter: grayscale(1) contrast(1.05);
}
.hero__tag {
  position: absolute; left: 18px; bottom: 18px;
  background: var(--lime); color: var(--black);
  font-size: 11px; font-weight: 700; letter-spacing: .18em; text-transform: uppercase;
  padding: 8px 12px; border-radius: 6px;
}

/* ---------- Ticker ---------- */

.ticker {
  overflow: hidden;
  background: var(--black);
  border-block: 1px solid var(--line-dark);
  padding-block: 18px;
}
.ticker__track { display: flex; width: max-content; animation: ticker 36s linear infinite; }
.ticker__group { display: flex; align-items: center; gap: 28px; padding-right: 28px; }
.ticker span {
  font-size: 15px; font-weight: 600; letter-spacing: .14em; text-transform: uppercase;
  white-space: nowrap;
}
.ticker i { font-style: normal; color: var(--lime); font-size: 12px; }

@keyframes ticker { to { transform: translateX(-50%); } }

/* ---------- 01 Problema ---------- */

.problem__list { margin-top: 48px; counter-reset: none; }
.problem__list li {
  display: grid; grid-template-columns: 56px 1fr; gap: 12px;
  padding-block: 22px;
  border-top: 1px solid var(--line-light);
  font-size: clamp(19px, 2vw, 24px); line-height: 1.35; letter-spacing: -.015em;
}
.problem__list li:last-child { border-bottom: 1px solid var(--line-light); }
.problem__list li { transition: padding-left .35s var(--ease), background-color .35s; }
.problem__list span { font-size: 13px; color: var(--gray); padding-top: 6px; letter-spacing: .1em; transition: color .35s; }
.problem__list li:hover { padding-left: 12px; }
.problem__list li:hover span { color: var(--black); font-weight: 700; }
.problem__list li:hover span::after { content: " ●"; color: var(--lime); }

.statement {
  margin-top: 56px;
  font-size: clamp(26px, 3.4vw, 42px); font-weight: 600; letter-spacing: -.03em; line-height: 1.15;
}
.statement strong {
  font-family: var(--serif); font-style: italic; font-weight: 400;
  background: linear-gradient(transparent 62%, var(--lime) 62%, var(--lime) 92%, transparent 92%);
}

/* ---------- 02 Tese ---------- */

.thesis__grid { display: grid; grid-template-columns: 1fr 1.1fr; gap: clamp(40px, 7vw, 110px); align-items: start; }
.thesis__intro { position: sticky; top: 120px; }
.thesis__text { margin-top: 28px; color: var(--text-dim); font-size: 18px; max-width: 420px; }

.questions li {
  display: grid; grid-template-columns: 56px 1fr; gap: 12px; align-items: baseline;
  padding-block: 26px;
  border-top: 1px solid var(--line-dark);
  font-size: clamp(20px, 2.1vw, 27px); font-weight: 500; letter-spacing: -.02em; line-height: 1.25;
  transition: padding-left .35s var(--ease);
}
.questions li:last-child { border-bottom: 1px solid var(--line-dark); }
.questions li:hover { padding-left: 12px; color: var(--lime); }
.questions span { color: var(--lime); font-size: 13px; font-weight: 600; letter-spacing: .1em; }

/* ---------- 03 Método ---------- */

.method__grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }

.method-card {
  position: relative; overflow: hidden;
  display: flex; flex-direction: column;
  min-height: 340px; padding: 28px;
  border: 1px solid var(--line-light); border-radius: var(--radius);
  background: var(--white);
  transition: background-color .4s var(--ease), color .4s var(--ease), transform .4s var(--ease), border-color .4s;
}
.method-card__num {
  font-size: 13px; font-weight: 600; letter-spacing: .1em; color: var(--gray);
  transition: color .4s;
}
.method-card h3 { font-size: 26px; margin-top: 72px; }
.method-card p { margin-top: 12px; color: #3a3a3a; font-size: 16px; transition: color .4s; flex-grow: 1; }
.method-card__word {
  margin-top: 28px;
  font-family: var(--serif); font-style: italic; font-size: 30px; line-height: 1;
  color: var(--gray); transition: color .4s;
}
.method-card::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 4px;
  background: var(--lime);
  transform: scaleX(0); transform-origin: left;
  transition: transform .5s var(--ease);
}
.method-card:hover, .method-card:focus-visible {
  background: var(--black); color: var(--white); border-color: var(--black);
  transform: translateY(-10px);
  box-shadow: 0 28px 50px -28px rgba(10, 10, 10, .6);
}
.method-card:hover::after, .method-card:focus-visible::after { transform: scaleX(1); }
.method-card:hover p, .method-card:focus-visible p { color: var(--text-dim); }
.method-card:hover .method-card__num, .method-card:focus-visible .method-card__num { color: var(--lime); }
.method-card:hover .method-card__word, .method-card:focus-visible .method-card__word { color: var(--lime); }

/* ---------- 04 Experiência ---------- */

.metrics {
  display: grid; grid-template-columns: repeat(3, minmax(0, 1fr));
  border-top: 1px solid var(--line-dark); border-left: 1px solid var(--line-dark);
}
.metric {
  display: flex; flex-direction: column; justify-content: space-between; gap: 40px;
  padding: clamp(24px, 3vw, 40px);
  border-right: 1px solid var(--line-dark); border-bottom: 1px solid var(--line-dark);
  min-height: 210px;
}
.metric strong {
  font-size: clamp(36px, 4.2vw, 60px); font-weight: 600; letter-spacing: -.045em; line-height: 1;
  color: var(--lime);
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}
.metric { transition: background-color .4s; }
.metric:hover { background: rgba(212, 255, 61, .06); }
.metric strong { transition: transform .4s var(--ease); transform-origin: left bottom; }
.metric:hover strong { transform: scale(1.04); }
.metric span {
  font-size: 12px; font-weight: 600; letter-spacing: .16em; text-transform: uppercase;
  color: var(--text-dim);
}

/* ---------- 05 Soluções ---------- */

.solutions__grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }

.solution {
  padding: 30px;
  border: 1px solid var(--line-light); border-radius: var(--radius);
  min-height: 230px;
  display: flex; flex-direction: column;
  transition: border-color .3s, transform .3s var(--ease);
}
.solution { transition: border-color .4s, transform .4s var(--ease), background-color .4s, color .4s, box-shadow .4s var(--ease); }
.solution p, .solution > span { transition: color .4s; }
.solution:hover {
  background: var(--black); color: var(--white); border-color: var(--black);
  transform: translateY(-8px);
  box-shadow: 0 24px 46px -26px rgba(10, 10, 10, .6);
}
.solution:hover p { color: var(--text-dim); }
.solution:hover > span { color: var(--lime); }
.solution > span { font-size: 13px; font-weight: 600; letter-spacing: .1em; color: var(--gray); margin-bottom: auto; }
.solution h3 { margin-top: 36px; }
.solution p { margin-top: 10px; color: #3a3a3a; font-size: 16px; }

.solution--featured { background: var(--black); color: var(--white); border-color: var(--black); }
.solution--featured p { color: var(--text-dim); }
.solution__badge {
  align-self: flex-start; margin-bottom: auto;
  background: var(--lime); color: var(--black);
  font-size: 11px; font-weight: 700; letter-spacing: .16em; text-transform: uppercase;
  padding: 7px 11px; border-radius: 6px;
}

.solutions__close {
  margin-top: 56px;
  font-size: clamp(22px, 2.6vw, 32px); letter-spacing: -.025em; line-height: 1.25; max-width: 760px;
}

/* ---------- 06 Diferencial ---------- */

.difference h2 { max-width: 900px; }

.difference__words { margin-top: 56px; }
.difference__words li {
  font-size: clamp(38px, 7vw, 100px); font-weight: 600; letter-spacing: -.05em; line-height: 1.02;
  border-bottom: 1px solid var(--line-dark);
  padding-block: 8px 14px;
}

.difference__label {
  margin-top: 80px; margin-bottom: 24px;
  font-size: 12px; font-weight: 600; letter-spacing: .2em; text-transform: uppercase; color: var(--gray);
}

.result-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.result {
  padding: 26px; border: 1px solid var(--line-dark); border-radius: var(--radius);
}
.result { transition: transform .4s var(--ease), background-color .4s, color .4s, border-color .4s; }
.result span { font-size: 13px; color: var(--lime); font-weight: 600; letter-spacing: .1em; transition: color .4s; }
.result:hover, .result:focus-visible {
  background: var(--lime); color: var(--black); border-color: var(--lime);
  transform: translateY(-8px);
}
.result:hover span, .result:hover p,
.result:focus-visible span, .result:focus-visible p { color: var(--black); }
.result h3 { margin-top: 28px; font-size: 20px; }
.result p { margin-top: 8px; font-size: 15px; color: var(--text-dim); transition: color .4s; }

/* ---------- 07 Sobre ---------- */

.about__grid { display: grid; grid-template-columns: .8fr 1.2fr; gap: clamp(40px, 7vw, 100px); align-items: start; }

.about__image { position: sticky; top: 110px; }
.about__image img {
  width: 100%; aspect-ratio: 4 / 5; object-fit: cover; object-position: 50% 30%;
  border-radius: var(--radius); filter: grayscale(1);
  background: #eee;
}
.about__image figcaption {
  margin-top: 14px;
  font-size: 12px; font-weight: 600; letter-spacing: .18em; text-transform: uppercase; color: var(--gray);
}

.about__intro { margin-top: 28px; font-size: 19px; line-height: 1.55; max-width: 620px; }

.timeline { margin-top: 44px; display: grid; gap: 12px; }
.timeline__item {
  position: relative;
  display: grid; grid-template-columns: 88px 1fr; gap: 20px;
  padding: 24px;
  border: 1px solid var(--line-light); border-radius: var(--radius);
  background: var(--white);
  transition: transform .4s var(--ease), box-shadow .4s var(--ease), border-color .4s, background-color .4s, color .4s;
}
.timeline__item::before {
  content: ""; position: absolute; left: -1px; top: 24px; bottom: 24px; width: 3px;
  border-radius: 3px; background: var(--lime);
  transform: scaleY(0); transform-origin: top;
  transition: transform .4s var(--ease);
}
.timeline__year {
  font-size: 15px; font-weight: 700; letter-spacing: .04em;
  display: inline-flex; align-items: center; gap: 8px; height: fit-content;
  padding-top: 3px;
}
.timeline__year::before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: var(--lime); box-shadow: 0 0 0 2px var(--black); flex: none; }
.timeline__item h3 { font-size: 20px; }
.timeline__item p { margin-top: 8px; font-size: 16px; color: #3a3a3a; transition: color .4s; }
.timeline__result {
  display: inline-block; margin-top: 14px !important;
  padding: 8px 12px; border-radius: 8px;
  background: var(--black); color: var(--white) !important; font-size: 15px !important;
}
.timeline__result b { color: var(--lime); font-weight: 600; }

.timeline__tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 16px; }
.timeline__tags li {
  font-size: 12px; font-weight: 600; letter-spacing: .08em; text-transform: uppercase;
  padding: 7px 11px; border-radius: 999px;
  background: var(--lime); color: var(--black);
}

.timeline__item--featured { background: var(--black); color: var(--white); border-color: var(--black); }
.timeline__item--featured p { color: var(--text-dim); }
.timeline__item--featured .timeline__year { color: var(--lime); }
.timeline__item--featured .timeline__year::before { box-shadow: none; }
.timeline__item--featured::before { display: none; }

.timeline__item:hover, .timeline__item:focus-visible {
  transform: translateY(-4px);
  border-color: var(--black);
  box-shadow: 0 18px 40px -24px rgba(10, 10, 10, .45);
}
.timeline__item:hover::before, .timeline__item:focus-visible::before { transform: scaleY(1); }
.timeline__item--featured:hover, .timeline__item--featured:focus-visible { box-shadow: 0 22px 50px -22px rgba(10, 10, 10, .7); }

/* ---------- 08 FAQ ---------- */

.faq { padding-bottom: calc(var(--section) * .5); }
.faq__grid { display: grid; grid-template-columns: .8fr 1.2fr; gap: clamp(40px, 7vw, 100px); }

.faq details { border-top: 1px solid var(--line-dark); }
.faq details:last-child { border-bottom: 1px solid var(--line-dark); }
.faq summary {
  cursor: pointer; list-style: none;
  display: flex; justify-content: space-between; align-items: center; gap: 20px;
  padding-block: 24px;
  font-size: clamp(18px, 1.8vw, 22px); font-weight: 500; letter-spacing: -.015em;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: "+"; flex: none;
  width: 32px; height: 32px; border-radius: 50%;
  border: 1px solid var(--line-dark);
  display: grid; place-items: center;
  color: var(--lime); font-size: 20px; font-weight: 400;
  transition: transform .3s var(--ease);
}
.faq details[open] summary::after { transform: rotate(45deg); }
.faq details p { padding-bottom: 26px; color: var(--text-dim); max-width: 620px; }

/* ---------- 09 CTA final ---------- */

.final-cta { padding-top: calc(var(--section) * .5); }
.final-cta__panel {
  position: relative; overflow: hidden;
  border: 1px solid var(--line-dark); border-radius: calc(var(--radius) + 8px);
  padding: clamp(40px, 7vw, 96px);
  text-align: center;
}
.final-cta__panel::before {
  content: ""; position: absolute; left: 50%; bottom: -320px; transform: translateX(-50%);
  width: 720px; height: 520px;
  background: radial-gradient(circle, rgba(212, 255, 61, .18), transparent 65%);
  pointer-events: none;
}
.final-cta__panel > * { position: relative; }
.final-cta h2 { max-width: 900px; margin-inline: auto; }
.final-cta__panel > p:not(.eyebrow) { margin: 24px auto 0; max-width: 520px; color: var(--text-dim); font-size: 18px; }
.final-cta__actions { display: flex; flex-wrap: wrap; justify-content: center; gap: 12px; margin-top: 40px; }

/* ---------- Footer ---------- */

.footer { border-top: 1px solid var(--line-dark); padding-block: 36px; }
.footer__inner { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 20px 32px; }
.footer img { height: 44px; width: auto; }
.footer__links { display: flex; flex-wrap: wrap; gap: 8px 28px; font-size: 14px; }
.footer__links a { color: var(--text-dim); transition: color .2s; }
.footer__links a:hover { color: var(--lime); }
.footer__copy { font-size: 13px; color: var(--gray); }

/* ---------- WhatsApp flutuante ---------- */

.wa-float {
  position: fixed; right: 20px; bottom: 20px; z-index: 80;
  width: 58px; height: 58px; border-radius: 50%;
  display: grid; place-items: center;
  background: var(--lime); color: var(--black);
  box-shadow: 0 12px 30px -10px rgba(0, 0, 0, .6);
  transform: translateY(120px); opacity: 0;
  transition: transform .45s var(--ease), opacity .45s;
}
.wa-float.is-visible { transform: none; opacity: 1; }
.no-js .wa-float, html:not(.js) .wa-float { transform: none; opacity: 1; }

/* ---------- Reveal (só com JS ativo) ---------- */

.js .reveal {
  opacity: 0; transform: translateY(26px);
  transition: opacity .8s var(--ease), transform .8s var(--ease);
  transition-delay: var(--d, 0s);
}
.js .reveal.is-visible { opacity: 1; transform: none; }

/* ---------- Responsivo ---------- */

@media (max-width: 1080px) {
  .method__grid { grid-template-columns: repeat(2, 1fr); }
  .result-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 900px) {
  .desktop-nav, .header-cta { display: none; }
  .menu-toggle { display: block; }

  .hero { padding-top: 110px; }
  .hero__grid { grid-template-columns: 1fr; }
  .hero__visual { max-width: 420px; }

  .thesis__grid, .about__grid, .faq__grid { grid-template-columns: 1fr; }
  .thesis__intro, .about__image { position: static; }
  .about__image { max-width: 420px; }

  .section-intro--split { grid-template-columns: 1fr; }
  .section-intro--split > p { justify-self: start; }

  .metrics { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .solutions__grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 600px) {
  body { font-size: 16px; }
  .hero__actions .btn { width: 100%; }
  .hero__proof { flex-direction: column; gap: 8px; }
  .hero__visual { max-width: 320px; }

  .method__grid, .solutions__grid, .result-grid { grid-template-columns: 1fr; }
  .method-card { min-height: 0; }
  .method-card h3 { margin-top: 28px; }
  .solution { min-height: 0; }

  .metrics { grid-template-columns: 1fr; }
  .metric { min-height: 0; gap: 16px; }

  .problem__list li, .questions li { grid-template-columns: 40px 1fr; }
  .timeline__item { grid-template-columns: 1fr; gap: 10px; padding: 20px; }

  .final-cta__actions .btn { width: 100%; }
  .footer__inner { flex-direction: column; align-items: flex-start; }
  .wa-float { right: 16px; bottom: 16px; width: 54px; height: 54px; }
}

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