/* ============================================================================
   Tê Desenvolve — te.tec.br
   Direção: caderno técnico editorial. Áreas neutras grandes, fios de 1px como
   estrutura, tipografia como elemento gráfico e a matriz cromática da marca
   (amarelo, azul, verde, laranja) usada como sistema de orientação.

   Para trocar a cor de uma seção, produto ou etapa: basta trocar a classe
   .a-yellow / .a-blue / .a-green / .a-orange no HTML. Nada mais depende disso.
   ========================================================================= */

/* --- 1. Tokens ----------------------------------------------------------- */
:root {
  /* Paleta institucional (manual da Tê) */
  --ink: #171b20;
  --paper: #f5f0e8;
  --white: #fffdf9;
  --soft: #ece6da;

  --yellow: #f2ba3d;
  --blue: #5e76ac;
  --green: #61b565;
  --orange: #d9582e;

  /* Tons derivados das mesmas cores, para texto pequeno com contraste AA */
  --yellow-deep: #7c5510;
  --blue-deep: #3f5488;
  --green-deep: #2f7a3c;
  --orange-deep: #a8380f;

  /* Variantes claras, para uso sobre o ink */
  --yellow-lift: #f2ba3d;
  --blue-lift: #9fb2dc;
  --green-lift: #9bd79e;
  --orange-lift: #f0906b;

  --muted: #5f6672;
  --muted-d: #a2a9b4;

  --rule: rgb(23 27 32 / 14%);
  --rule-strong: rgb(23 27 32 / 32%);
  --rule-d: rgb(245 240 232 / 18%);
  --rule-d-strong: rgb(245 240 232 / 38%);

  --sans: "Archivo", "Helvetica Neue", Helvetica, sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, "SFMono-Regular", Menlo, monospace;
  --serif: "Newsreader", "Iowan Old Style", Georgia, serif;

  --gutter: clamp(20px, 4vw, 64px);
  --maxw: 1360px;
  /* alinha o conteúdo de seções full-bleed com a coluna do .wrap */
  --edge: calc(max(0px, (100vw - var(--maxw)) / 2) + var(--gutter));

  /* Cor ativa da seção — sobrescrita pelas classes .a-* */
  --accent: var(--yellow);
  --accent-deep: var(--yellow-deep);
  --accent-lift: var(--yellow-lift);

  color-scheme: light;
}

.a-yellow { --accent: var(--yellow); --accent-deep: var(--yellow-deep); --accent-lift: var(--yellow-lift); }
.a-blue   { --accent: var(--blue);   --accent-deep: var(--blue-deep);   --accent-lift: var(--blue-lift); }
.a-green  { --accent: var(--green);  --accent-deep: var(--green-deep);  --accent-lift: var(--green-lift); }
.a-orange { --accent: var(--orange); --accent-deep: var(--orange-deep); --accent-lift: var(--orange-lift); }

/* --- 2. Base ------------------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }

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

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 17px;
  font-weight: 400;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1, h2, h3, h4, p, ul, ol, dl, dd, figure, blockquote { margin: 0; }
ul, ol { padding: 0; list-style: none; }
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; }
button, input, select, textarea { font: inherit; color: inherit; }

[id] { scroll-margin-top: 90px; }

:focus-visible {
  outline: 2px solid var(--blue-deep);
  outline-offset: 3px;
}

.sr-only, .skip {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
}

.skip:focus {
  z-index: 200;
  top: 10px; left: 10px;
  width: auto; height: auto;
  padding: 12px 18px;
  clip-path: none;
  background: var(--ink);
  color: var(--white);
  font-family: var(--mono);
  font-size: 12px;
}

/* Grão sutil de papel — fixo, sem custo de repaint no scroll */
.grain {
  position: fixed;
  z-index: 100;
  inset: 0;
  pointer-events: none;
  opacity: .38;
  mix-blend-mode: multiply;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='180' height='180'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='3'/%3E%3CfeColorMatrix type='saturate' values='0'/%3E%3C/filter%3E%3Crect width='180' height='180' filter='url(%23n)' opacity='.22'/%3E%3C/svg%3E");
}

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

/* --- 3. Elementos tipográficos recorrentes ------------------------------- */
.index {
  display: flex;
  align-items: center;
  gap: .5em;
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--accent-deep);
}

.index span { color: var(--rule-strong); }

.index::after {
  content: "";
  flex: 1;
  height: 1px;
  max-width: 140px;
  background: var(--accent);
}

.kicker {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--muted);
}

.kicker .tick { width: 9px; height: 9px; background: var(--accent); }
.kicker .sep { color: var(--rule-strong); }

h1 {
  font-size: clamp(38px, 8.4vw, 128px);
  font-weight: 600;
  line-height: .94;
  letter-spacing: -.04em;
}

h2 {
  font-size: clamp(31px, 4.6vw, 68px);
  font-weight: 600;
  line-height: 1.02;
  letter-spacing: -.035em;
}

h1 em, h2 em {
  font-family: var(--serif);
  font-style: italic;
  font-weight: 400;
  letter-spacing: -.015em;
}

.sec-lead {
  max-width: 62ch;
  color: var(--muted);
  font-size: clamp(17px, 1.5vw, 21px);
  line-height: 1.55;
}

.link-arrow {
  display: inline-flex;
  align-items: baseline;
  gap: .55em;
  padding-bottom: 3px;
  border-bottom: 1px solid var(--accent);
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .08em;
  text-transform: uppercase;
  text-decoration: none;
  transition: border-color .25s, color .25s;
}

.link-arrow::after { content: "\2192"; transition: transform .25s; }
.link-arrow:hover { color: var(--accent-deep); }
.link-arrow:hover::after { transform: translateX(4px); }

/* --- 4. Botões ----------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 15px 24px;
  border: 1px solid transparent;
  border-radius: 2px;
  font-size: 15px;
  font-weight: 600;
  letter-spacing: -.005em;
  text-decoration: none;
  cursor: pointer;
  transition: background-color .25s, color .25s, border-color .25s, transform .25s;
}

.btn-primary { background: var(--ink); color: var(--white); }
.btn-primary:hover { background: #2c333d; }
.btn-yellow { background: var(--yellow); color: var(--ink); }
.btn-yellow:hover { background: #ffca55; }

.btn-ghost {
  border-color: var(--rule-strong);
  color: var(--ink);
}

.btn-ghost:hover { background: var(--soft); border-color: var(--ink); }
.btn-sm { padding: 10px 16px; font-size: 13px; }
.btn-block { width: 100%; }
.btn:active { transform: translateY(1px); }
.btn[disabled] { opacity: .55; cursor: progress; }

/* --- 5. Topbar ----------------------------------------------------------- */
.topbar {
  position: fixed;
  z-index: 90;
  top: 0; left: 0; right: 0;
  display: flex;
  align-items: center;
  gap: 24px;
  min-height: 66px;
  padding-inline: var(--gutter);
  border-bottom: 1px solid transparent;
  background: rgb(245 240 232 / 92%);
  transition: border-color .3s, background-color .3s;
}

.topbar[data-scrolled] {
  border-bottom-color: var(--rule);
  background: var(--paper);
}

.mark {
  display: grid;
  grid-template-columns: auto auto;
  align-items: center;
  column-gap: 10px;
  margin-right: auto;
  text-decoration: none;
}

.mark .mark-glyph { grid-row: 1 / span 2; }

.mark-glyph {
  display: grid;
  place-items: center;
  width: 30px; height: 30px;
  background: var(--ink);
  color: var(--yellow);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: -.03em;
}

.mark-name {
  font-size: 16px;
  font-weight: 600;
  letter-spacing: -.02em;
}

.mark-domain {
  grid-column: 2;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--muted);
}

.topnav { display: flex; gap: clamp(14px, 2vw, 30px); }

.topnav a {
  padding: 4px 0;
  border-bottom: 1px solid transparent;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .1em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--muted);
  transition: color .2s, border-color .2s;
}

.topnav a:hover { color: var(--ink); border-bottom-color: var(--yellow); }
.topnav .only-mobile { display: none; }

.topbar-end { display: flex; align-items: center; gap: 12px; }

.menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px; height: 36px;
  padding: 0 8px;
  border: 1px solid var(--rule-strong);
  border-radius: 2px;
  background: transparent;
  cursor: pointer;
}

.menu-toggle span {
  display: block;
  height: 1.5px;
  background: var(--ink);
  transition: transform .25s;
}

.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); }

/* --- 6. Hero ------------------------------------------------------------- */
.hero {
  padding-top: clamp(112px, 16vh, 190px);
  padding-bottom: clamp(40px, 6vw, 76px);
  /* fios verticais quase imperceptíveis: a grade editorial visível */
  background-image: linear-gradient(90deg, var(--rule) 1px, transparent 1px);
  background-size: 12.5% 100%;
  background-position: left top;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.12fr) minmax(0, .88fr);
  column-gap: clamp(32px, 6vw, 110px);
  align-items: end;
}

.hero .kicker { grid-column: 1 / -1; margin-bottom: clamp(28px, 5vw, 60px); }

.hero h1 {
  align-self: end;
  max-width: 15ch;
}

.hero h1 em {
  /* sublinhado desenhado na base, não no glifo */
  background: linear-gradient(var(--yellow), var(--yellow)) bottom left / 100% .1em no-repeat;
  padding-bottom: .06em;
}

.hero-side {
  display: flex;
  flex-direction: column;
  gap: 24px;
  padding-bottom: 8px;
}

.hero-lead {
  max-width: 46ch;
  font-size: clamp(16px, 1.35vw, 19px);
  line-height: 1.6;
  color: var(--muted);
}

.hero-lead strong { color: var(--ink); font-weight: 600; }

.hero-note {
  max-width: 40ch;
  padding-left: 18px;
  border-left: 2px solid var(--orange);
  font-family: var(--serif);
  font-style: italic;
  font-size: clamp(17px, 1.5vw, 21px);
  line-height: 1.45;
}

.hero-actions { display: flex; flex-wrap: wrap; gap: 10px; }

/* Régua conceitual: problema → evolução */
.ruler {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  margin-top: clamp(52px, 8vw, 104px);
  border-top: 1px solid var(--rule-strong);
}

.ruler li {
  position: relative;
  padding: 20px 14px 4px 0;
  font-size: clamp(13px, 1.15vw, 16px);
  font-weight: 500;
  letter-spacing: -.01em;
}

.ruler li + li { padding-left: 14px; border-left: 1px solid var(--rule); }
.ruler li i { position: absolute; top: -1px; left: 0; width: 100%; height: 3px; background: var(--accent); }
.ruler li + li i { left: 14px; width: calc(100% - 14px); }

.ruler b {
  display: block;
  margin-bottom: 8px;
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: .14em;
  color: var(--accent-deep);
}

/* --- 7. Duas frentes ----------------------------------------------------- */
.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  margin-top: clamp(40px, 6vw, 80px);
  border-top: 1px solid var(--rule);
}

.split-side {
  padding: clamp(44px, 5.5vw, 92px) clamp(24px, 3.5vw, 68px);
  background: var(--white);
}

.split-side:first-child { padding-left: var(--edge); }

.split-side:last-child {
  padding-right: var(--edge);
  border-left: 1px solid var(--rule);
}

.split-dark {
  background: var(--ink);
  color: var(--white);
  border-left-color: var(--ink);
}

.split-dark .index { color: var(--accent-lift); }
.split-dark .index span { color: var(--rule-d-strong); }
.split-dark .side-text { color: var(--muted-d); }

.side-title {
  margin: 22px 0 20px;
  font-size: clamp(32px, 4.2vw, 62px);
  font-weight: 600;
  line-height: .96;
  letter-spacing: -.038em;
}

.side-text {
  max-width: 44ch;
  color: var(--muted);
  font-size: clamp(15px, 1.2vw, 17px);
  line-height: 1.6;
}

.ruled {
  counter-reset: r;
  margin: 32px 0;
}

.ruled li {
  display: flex;
  align-items: baseline;
  gap: 16px;
  padding: 13px 0;
  border-bottom: 1px solid var(--rule);
  counter-increment: r;
  font-size: clamp(15px, 1.3vw, 18px);
  font-weight: 500;
  letter-spacing: -.012em;
}

.ruled li:first-child { border-top: 1px solid var(--rule); }

.ruled li::before {
  content: counter(r, decimal-leading-zero);
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 400;
  letter-spacing: .1em;
  color: var(--muted);
}

.side-quote {
  max-width: 40ch;
  margin: 34px 0;
  padding-left: 20px;
  border-left: 2px solid var(--accent);
  font-family: var(--serif);
  font-style: italic;
  font-size: clamp(19px, 1.9vw, 27px);
  line-height: 1.35;
}

.split-dark .link-arrow { border-bottom-color: var(--accent-lift); }
.split-dark .link-arrow:hover { color: var(--accent-lift); }

/* --- 8. Seções genéricas ------------------------------------------------- */
.section { padding: clamp(64px, 9vw, 150px) 0; }
.sec-head { max-width: 940px; }
.sec-head-wide { max-width: 1100px; }
.sec-head h2 { margin: 24px 0 20px; }

.sec-head-inline {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: clamp(16px, 4vw, 60px);
  align-items: end;
  max-width: none;
}

.sec-head-inline .index { grid-column: 1 / -1; }
.sec-head-inline h2 { margin: 24px 0 0; }
.sec-head-inline .sec-lead { padding-bottom: 6px; }

/* --- 9. Ecossistema ------------------------------------------------------ */
.eco-section { background: var(--white); border-block: 1px solid var(--rule); }
.eco { margin-top: clamp(44px, 6vw, 84px); }

.core {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, .85fr) minmax(0, 1.15fr);
  gap: clamp(20px, 4vw, 64px);
  padding: clamp(30px, 4vw, 62px);
  background: var(--ink);
  color: var(--white);
  overflow: hidden;
}

/* malha técnica interna, quase imperceptível */
.core::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(90deg, var(--rule-d) 1px, transparent 1px),
    linear-gradient(var(--rule-d) 1px, transparent 1px);
  background-size: 64px 64px;
  opacity: .6;
}

.core > * { position: relative; }

.core-tag {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--yellow);
}

.core-title {
  margin-top: 14px;
  font-size: clamp(34px, 5.4vw, 84px);
  font-weight: 600;
  line-height: .92;
  letter-spacing: -.045em;
}

.core-title span { color: var(--yellow); }

.core-text {
  max-width: 52ch;
  color: var(--muted-d);
  font-size: clamp(15px, 1.25vw, 18px);
  line-height: 1.6;
}

.core-attrs {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 28px;
  margin-top: 26px;
  padding-top: 18px;
  border-top: 1px solid var(--rule-d);
}

.core-attrs li {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--white);
}

.core-attrs li::before { content: "\2014\00a0"; color: var(--yellow); }

/* barramento: do Core para as aplicações */
.bus { position: relative; height: 66px; }

.bus::before {
  content: "";
  position: absolute;
  top: 0; left: 50%;
  width: 1px; height: 33px;
  background: var(--rule-strong);
}

.bus span {
  position: absolute;
  top: 33px;
  left: 16.66%;
  right: 16.66%;
  height: 1px;
  background: var(--rule-strong);
}

.apps { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); }

.app {
  position: relative;
  padding: 26px clamp(18px, 2vw, 34px) 6px;
  border-top: 1px solid var(--rule-strong);
}

.app + .app { border-left: 1px solid var(--rule); }
.app .stem { position: absolute; top: -33px; left: 50%; width: 1px; height: 33px; background: var(--accent); }

.app-meta {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--muted);
}

.app-meta b { color: var(--accent); }

.app-name {
  margin: 12px 0 12px;
  font-size: clamp(23px, 2.6vw, 38px);
  font-weight: 600;
  letter-spacing: -.032em;
  color: var(--accent-deep);
}

.app-text {
  color: var(--muted);
  font-size: clamp(14px, 1.1vw, 16px);
  line-height: 1.6;
}

.eco-foot {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 24px;
  margin-top: clamp(34px, 4vw, 56px);
  padding-top: 22px;
  border-top: 1px solid var(--rule);
  font-size: 15px;
  color: var(--muted);
}

/* --- 10. Método ---------------------------------------------------------- */
.method .steps { margin-top: clamp(40px, 5vw, 76px); }

.step {
  position: relative;
  display: grid;
  grid-template-columns: clamp(58px, 8vw, 140px) minmax(0, 1fr) minmax(0, 1.25fr);
  gap: clamp(14px, 3vw, 44px);
  align-items: start;
  padding: clamp(24px, 3.2vw, 46px) 0;
  border-top: 1px solid var(--rule);
}

/* ritmo assimétrico: as etapas pares avançam para dentro da página */
.step:nth-child(even) { margin-left: clamp(0px, 7vw, 132px); }

.step::before {
  content: "";
  position: absolute;
  top: -1px; left: 0;
  width: clamp(40px, 5vw, 88px);
  height: 3px;
  background: var(--accent);
}

.step-num {
  font-size: clamp(30px, 5vw, 76px);
  font-weight: 600;
  line-height: .82;
  letter-spacing: -.05em;
  color: var(--accent-deep);
}

.step h3 {
  font-size: clamp(21px, 2.2vw, 32px);
  font-weight: 600;
  letter-spacing: -.03em;
}

.step p {
  max-width: 54ch;
  color: var(--muted);
  font-size: clamp(15px, 1.15vw, 17px);
  line-height: 1.6;
}

/* --- 11. Sob medida ------------------------------------------------------ */
.tailored { background: var(--white); border-block: 1px solid var(--rule); }
.asks { margin: clamp(36px, 5vw, 70px) 0 clamp(40px, 5vw, 72px); }

.ask {
  padding: clamp(18px, 2.4vw, 34px) 0;
  border-top: 1px solid var(--rule);
  font-family: var(--serif);
  font-size: clamp(22px, 3.4vw, 50px);
  line-height: 1.12;
  letter-spacing: -.02em;
  text-wrap: balance;
}

.ask:last-child { border-bottom: 1px solid var(--rule); }
.ask:nth-child(2) { padding-left: clamp(0px, 6vw, 110px); }
.ask:nth-child(3) { padding-left: clamp(0px, 12vw, 220px); }

.ask::first-letter { color: var(--blue-deep); }

.tailored-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr);
  gap: clamp(28px, 5vw, 80px);
}

.tailored-copy p {
  max-width: 50ch;
  color: var(--muted);
  font-size: clamp(16px, 1.3vw, 19px);
  line-height: 1.6;
}

.tailored-copy .tailored-mark {
  margin-top: 26px;
  padding-top: 22px;
  border-top: 1px solid var(--rule);
  color: var(--ink);
  font-size: clamp(19px, 2vw, 28px);
  font-weight: 600;
  line-height: 1.25;
  letter-spacing: -.028em;
}

.catalog-head {
  padding-bottom: 12px;
  border-bottom: 1px solid var(--rule-strong);
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--muted);
}

.catalog ul {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  column-gap: clamp(16px, 3vw, 40px);
}

.catalog li {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 12px 0;
  border-bottom: 1px solid var(--rule);
  font-size: clamp(14px, 1.15vw, 17px);
  font-weight: 500;
  letter-spacing: -.012em;
}

.catalog li span {
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 400;
  color: var(--green-deep);
}

/* --- 12. Jeito de construir --------------------------------------------- */
.principles-list { margin-top: clamp(40px, 5vw, 72px); }

.principles-list > div {
  display: grid;
  grid-template-columns: minmax(0, .44fr) minmax(0, .56fr);
  gap: clamp(12px, 3vw, 48px);
  padding: clamp(18px, 2.2vw, 30px) clamp(8px, 1.5vw, 20px);
  border-top: 1px solid var(--rule);
  transition: background-color .3s;
}

.principles-list > div:last-child { border-bottom: 1px solid var(--rule); }
.principles-list > div:hover { background: var(--soft); }

.principles-list dt {
  font-size: clamp(18px, 1.85vw, 26px);
  font-weight: 600;
  line-height: 1.15;
  letter-spacing: -.028em;
}

.principles-list dd {
  max-width: 56ch;
  color: var(--muted);
  font-size: clamp(14px, 1.15vw, 17px);
  line-height: 1.6;
}

/* --- 13. Prova de construção -------------------------------------------- */
.proof { background: var(--soft); border-block: 1px solid var(--rule); }

.slots {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: clamp(18px, 2.5vw, 40px);
  margin-top: clamp(40px, 5vw, 72px);
}

.slot { grid-column: span 5; }
.slot-wide { grid-column: span 7; }
.slot:nth-child(3) { grid-column: span 7; }
.slot:nth-child(4) { grid-column: span 5; }

.slot-frame {
  position: relative;
  aspect-ratio: 16 / 10;
  border: 1px solid var(--rule-strong);
  background: var(--white);
  overflow: hidden;
}

.slot-frame img { display: none; width: 100%; height: 100%; object-fit: cover; }
.slot[data-state="filled"] .slot-frame img { display: block; }
.slot[data-state="filled"] .slot-empty { display: none; }

.slot-empty {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: space-between;
  padding: clamp(14px, 1.6vw, 22px);
  background-image: repeating-linear-gradient(
    135deg,
    var(--rule) 0 1px,
    transparent 1px 11px
  );
}

.slot-empty b {
  font-family: var(--mono);
  font-size: clamp(20px, 2.4vw, 34px);
  font-weight: 400;
  color: var(--accent-deep);
}

.slot-empty i {
  font-family: var(--mono);
  font-size: 10px;
  font-style: normal;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--muted);
}

.slot figcaption {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 14px;
  align-items: baseline;
  padding-top: 12px;
}

.slot figcaption b {
  font-size: 15px;
  font-weight: 600;
  letter-spacing: -.015em;
}

.slot figcaption span {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--muted);
}

.proof-foot {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 22px;
  margin-top: clamp(34px, 4vw, 56px);
  padding-top: 22px;
  border-top: 1px solid var(--rule);
  font-size: 15px;
  color: var(--muted);
}

.proof-foot .link-arrow { --accent: var(--green); color: var(--green-deep); }

/* --- 14. CTA + formulário ------------------------------------------------ */
.cta {
  padding: clamp(64px, 9vw, 140px) 0;
  background: var(--ink);
  color: var(--white);
}

.cta-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr);
  gap: clamp(40px, 6vw, 100px);
  align-items: start;
}

.cta .index { color: var(--yellow); }
.cta .index span { color: var(--rule-d-strong); }
.cta .index::after { background: var(--yellow); }

.cta h2 {
  margin: 26px 0 24px;
  font-size: clamp(33px, 5vw, 76px);
}

.cta h2 em { color: var(--yellow); }

.cta-lead {
  max-width: 44ch;
  color: var(--muted-d);
  font-size: clamp(16px, 1.3vw, 19px);
  line-height: 1.6;
}

.cta-direct { margin-top: clamp(30px, 4vw, 48px); }

.cta-contacts {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, auto));
  gap: 20px 44px;
  margin-top: 34px;
  padding-top: 24px;
  border-top: 1px solid var(--rule-d);
}

.cta-contacts dt {
  margin-bottom: 6px;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--muted-d);
}

.cta-contacts dd { font-size: 17px; font-weight: 500; letter-spacing: -.015em; }
.cta-contacts a { text-decoration: none; border-bottom: 1px solid var(--rule-d-strong); }
.cta-contacts a:hover { border-bottom-color: var(--yellow); color: var(--yellow); }

.form {
  padding: clamp(24px, 3vw, 40px);
  border: 1px solid var(--rule-d);
  background: rgb(245 240 232 / 4%);
}

.form-head {
  padding-bottom: 18px;
  margin-bottom: 22px;
  border-bottom: 1px solid var(--rule-d);
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--yellow);
}

.field { margin-bottom: 20px; }

.field-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 0 24px;
}

.field label {
  display: block;
  margin-bottom: 7px;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--muted-d);
}

.field label span { text-transform: none; letter-spacing: .04em; opacity: .7; }

.field input,
.field select,
.field textarea {
  width: 100%;
  padding: 10px 2px;
  border: 0;
  border-bottom: 1px solid var(--rule-d-strong);
  border-radius: 0;
  background: transparent;
  color: var(--white);
  font-size: 16px;
  transition: border-color .25s;
}

.field textarea { resize: vertical; min-height: 92px; line-height: 1.5; }
.field select {
  appearance: none;
  padding-right: 22px;
  cursor: pointer;
  background-image:
    linear-gradient(45deg, transparent 50%, var(--muted-d) 50%),
    linear-gradient(135deg, var(--muted-d) 50%, transparent 50%);
  background-position: right 9px center, right 4px center;
  background-size: 5px 5px, 5px 5px;
  background-repeat: no-repeat;
}
.field select option { background: var(--ink); color: var(--white); }
.field ::placeholder { color: rgb(162 169 180 / 65%); }

.field input:focus,
.field select:focus,
.field textarea:focus {
  border-bottom-color: var(--yellow);
  outline: none;
}

.field input:user-invalid,
.field textarea:user-invalid { border-bottom-color: var(--orange-lift); }

.form .btn-primary { margin-top: 8px; background: var(--yellow); color: var(--ink); }
.form .btn-primary:hover { background: #ffca55; }

.form-status {
  margin-top: 14px;
  font-family: var(--mono);
  font-size: 12px;
  line-height: 1.5;
  letter-spacing: .04em;
}

.form-status[data-kind="ok"] { color: var(--green-lift); }
.form-status[data-kind="error"] { color: var(--orange-lift); }

.form-legal {
  margin-top: 16px;
  font-size: 12px;
  line-height: 1.5;
  color: var(--muted-d);
}

/* --- 15. Rodapé ---------------------------------------------------------- */
.foot { padding: clamp(48px, 6vw, 88px) 0 40px; background: var(--paper); }

.foot-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) repeat(2, minmax(0, 1fr));
  gap: clamp(28px, 4vw, 64px);
  padding-top: clamp(28px, 3vw, 44px);
  border-top: 1px solid var(--rule-strong);
}

.foot-brand .mark-glyph { margin-bottom: 16px; }
.foot-name { font-size: 22px; font-weight: 600; letter-spacing: -.03em; }

.foot-sign {
  margin-top: 6px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--muted);
}

.foot-head {
  margin-bottom: 14px;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--muted);
}

.foot-nav, .foot-contact { display: flex; flex-direction: column; align-items: flex-start; gap: 9px; }

.foot-nav a, .foot-contact a {
  font-size: 15px;
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color .2s;
}

.foot-nav a:hover, .foot-contact a:hover { border-bottom-color: var(--yellow); }
.foot-small { margin-top: 6px; font-size: 13px; color: var(--muted); }

.foot-legal {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  grid-column: 1 / -1;
  margin-top: clamp(20px, 3vw, 40px);
  padding-top: 20px;
  border-top: 1px solid var(--rule);
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--muted);
}

/* --- 16. Revelação no scroll -------------------------------------------- */
/* condicionado a .js: sem JavaScript o conteúdo aparece normalmente */
.js [data-reveal] {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity .8s cubic-bezier(.22, .61, .24, 1), transform .8s cubic-bezier(.22, .61, .24, 1);
}

.js [data-reveal].is-in { opacity: 1; transform: none; }
.js [data-reveal-delay="1"].is-in { transition-delay: .07s; }
.js [data-reveal-delay="2"].is-in { transition-delay: .14s; }
.js [data-reveal-delay="3"].is-in { transition-delay: .21s; }
.js [data-reveal-delay="4"].is-in { transition-delay: .28s; }

/* --- 17. Responsivo ----------------------------------------------------- */
@media (max-width: 1080px) {
  .hero-grid { grid-template-columns: 1fr; row-gap: clamp(28px, 5vw, 48px); }
  .hero h1 { max-width: 18ch; }
  .hero-side { padding-bottom: 0; }
  .core { grid-template-columns: 1fr; }
  .cta-grid { grid-template-columns: 1fr; }
  .sec-head-inline { grid-template-columns: 1fr; align-items: start; }
}

@media (max-width: 900px) {
  .topnav {
    position: absolute;
    z-index: -1;
    top: 100%; left: 0; right: 0;
    flex-direction: column;
    gap: 0;
    padding: 0 var(--gutter);
    border-bottom: 1px solid var(--rule);
    background: var(--paper);
    visibility: hidden;
    opacity: 0;
    transform: translateY(-8px);
    transition: opacity .25s, transform .25s, visibility .25s;
  }

  /* fio no topo de cada item: o painel fecha com a própria borda inferior */
  .topnav a { padding: 15px 0; border-top: 1px solid var(--rule); font-size: 12px; }
  .topbar[data-open] .topnav { z-index: 1; visibility: visible; opacity: 1; transform: none; }
  .topbar[data-open] { border-bottom-color: transparent; }
  .menu-toggle { display: flex; }
  .mark-domain { display: none; }

  .split { grid-template-columns: 1fr; }
  .split-side:first-child, .split-side:last-child { padding-inline: var(--gutter); }
  .split-side:last-child { border-left: 0; border-top: 1px solid var(--rule); }

  /* barramento do ecossistema vira uma espinha vertical */
  .bus { height: 30px; }
  .bus::before { left: 22px; height: 30px; }
  .bus span { display: none; }
  .apps { grid-template-columns: 1fr; }
  .app { padding: 22px 0 26px 46px; border-top: 0; }
  .app + .app { border-left: 0; }

  .app::before {
    content: "";
    position: absolute;
    top: 0; left: 22px;
    width: 1px; height: 100%;
    background: var(--rule);
  }

  .app:last-child::before { height: 34px; }

  .app .stem {
    top: 34px; left: 22px;
    width: 24px; height: 3px;
  }

  .step { grid-template-columns: clamp(46px, 12vw, 76px) minmax(0, 1fr); }
  .step p { grid-column: 2; margin-top: 10px; }
  .step:nth-child(even) { margin-left: clamp(0px, 5vw, 60px); }

  .tailored-grid { grid-template-columns: 1fr; }
  .principles-list > div { grid-template-columns: 1fr; gap: 8px; }
  .slot, .slot-wide, .slot:nth-child(3), .slot:nth-child(4) { grid-column: span 12; }
  .foot-grid { grid-template-columns: 1fr 1fr; }
  .foot-brand { grid-column: 1 / -1; }
}

@media (max-width: 620px) {
  body { font-size: 16px; }
  .hero { background-size: 25% 100%; }
  .ruler { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .ruler li { padding: 16px 10px 14px 0; border-top: 1px solid var(--rule); }
  .ruler li + li { padding-left: 0; border-left: 0; }
  .ruler li:nth-child(even) { padding-left: 14px; border-left: 1px solid var(--rule); }
  .ruler li i { display: none; }
  .ruler li:nth-child(-n+2) { border-top: 0; }

  .ruler b { color: var(--accent-deep); }
  .ruler b::before { content: ""; display: inline-block; width: 7px; height: 7px; margin-right: 8px; background: var(--accent); vertical-align: 1px; }

  .ask:nth-child(2), .ask:nth-child(3) { padding-left: 0; }
  .catalog ul { grid-template-columns: 1fr; }
  .cta-contacts { grid-template-columns: 1fr; gap: 16px; }
  .foot-grid { grid-template-columns: 1fr; }
  .btn { width: 100%; }
  .hero-actions .btn, .cta-direct .btn { width: 100%; }
  /* sem espaço para o botão na topbar: o contato entra no menu */
  .topbar-end .btn { display: none; }
  .topnav .only-mobile { display: block; color: var(--ink); }
}

/* --- 18. Preferências e impressão --------------------------------------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }

  *, *::before, *::after {
    animation-duration: .001ms !important;
    transition-duration: .001ms !important;
  }

  .js [data-reveal] { opacity: 1; transform: none; }
}

@media print {
  .topbar, .grain, .form, .menu-toggle { display: none; }
  body { background: #fff; }
  .cta, .split-dark, .core { background: #fff; color: #000; }
  .core::before { display: none; }
  .core-title span, .core-tag, .cta h2 em, .index, .step-num, .app-name { color: #000; }
  .split-dark .side-text, .core-text, .cta-lead { color: #333; }
}