/* =========================================================
   Soluções Tecnológicas 96
   Sistema visual: registro / placa de identificação.
   Sans do sistema para discurso, monoespaçada para dado cadastral.
   Sem dependências externas.
   ========================================================= */

:root {
  --ink:      #101418;
  --ink-soft: #2c333c;
  --muted:    #5c636e;
  --paper:    #ffffff;
  --paper-2:  #f2f3f5;
  --rule:     #d8dbe0;
  --accent:   #1f5f4f;
  --accent-t: #e6efeb;

  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --mono: ui-monospace, SFMono-Regular, "Cascadia Mono", "Segoe UI Mono", "Roboto Mono", Consolas, "Liberation Mono", monospace;

  --rail: 216px;
  --gutter: 64px;
}

* { 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: 16px;
  line-height: 1.65;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

/* A medida acompanha a tela: trava em 1180 no notebook e abre até 1680
   em monitores grandes, onde uma coluna fixa estreita pareceria perdida. */
.container {
  width: 100%;
  max-width: clamp(1180px, 78vw, 1680px);
  margin: 0 auto;
  padding: 0 24px;
}

a { color: inherit; }

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

/* ---------- utilitários tipográficos ---------- */

.label {
  font-family: var(--mono);
  font-size: 0.6875rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}

/* ---------- masthead ---------- */

.masthead {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--rule);
}

.masthead .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px 32px;
  min-height: 68px;
  flex-wrap: wrap;
}

.wordmark {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  text-decoration: none;
  font-weight: 650;
  font-size: 0.9375rem;
  letter-spacing: -0.015em;
  color: var(--ink);
}

.wordmark .mark {
  font-family: var(--mono);
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0;
  color: var(--paper);
  background: var(--accent);
  padding: 2px 6px 3px;
  border-radius: 3px;
  transform: translateY(-1px);
}

.masthead nav {
  display: flex;
  gap: 28px;
}

.masthead nav a {
  font-family: var(--mono);
  font-size: 0.6875rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
  text-decoration: none;
  padding: 4px 0;
  border-bottom: 1px solid transparent;
  transition: color 0.18s ease, border-color 0.18s ease;
}

.masthead nav a:hover {
  color: var(--ink);
  border-bottom-color: var(--accent);
}

/* ---------- hero ---------- */

.hero {
  border-bottom: 1px solid var(--rule);
  padding: 88px 0 80px;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 48px;
  align-items: start;
}

.eyebrow {
  margin: 0 0 22px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.eyebrow::before {
  content: "";
  width: 28px;
  height: 1px;
  background: var(--accent);
  flex: 0 0 auto;
}

.hero h1 {
  margin: 0 0 20px;
  font-size: clamp(2.125rem, 5.2vw, 3.5rem);
  font-weight: 700;
  line-height: 1.04;
  letter-spacing: -0.038em;
  max-width: 15ch;
}

.hero h1 em {
  font-style: normal;
  color: var(--accent);
}

.lede {
  margin: 0;
  max-width: 48ch;
  font-size: 1.0625rem;
  color: var(--ink-soft);
}

/* ---------- placa de identificação (elemento assinatura) ---------- */

.plate {
  border: 1px solid var(--rule);
  background: var(--paper);
}

.plate-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 12px 18px;
  border-bottom: 1px solid var(--rule);
  background: var(--paper-2);
}

.plate-num {
  font-family: var(--mono);
  font-size: 1rem;
  font-weight: 600;
  color: var(--accent);
  letter-spacing: -0.02em;
}

.plate-body {
  display: grid;
  gap: 16px;
  padding: 18px;
  margin: 0;
}

.plate-body div { min-width: 0; }

.plate-body dt { margin-bottom: 3px; }

.plate-body dd {
  margin: 0;
  font-family: var(--mono);
  font-size: 0.8125rem;
  font-variant-numeric: tabular-nums;
  line-height: 1.5;
  color: var(--ink);
  word-break: break-word;
}

/* ---------- seções com trilho de rótulo ---------- */

.section {
  padding: 80px 0;
  border-bottom: 1px solid var(--rule);
}

.section-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
}

.rail h2 {
  margin: 0 0 6px;
  font-family: var(--mono);
  font-size: 0.6875rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}

.rail p {
  margin: 0;
  font-size: 0.8125rem;
  color: var(--muted);
  max-width: 26ch;
}

.body-col { min-width: 0; }

/* prosa + placa de perfil lado a lado */
.split {
  display: grid;
  grid-template-columns: 1fr;
  gap: 36px;
  align-items: start;
}

/* ---------- livro-razão de aplicativos ---------- */

.ledger {
  border-top: 1px solid var(--ink);
}

.record {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px 32px;
  padding: 26px 0 26px 20px;
  border-bottom: 1px solid var(--rule);
  box-shadow: inset 2px 0 0 transparent;
  transition: box-shadow 0.18s ease, background-color 0.18s ease;
}

.record:hover {
  background: var(--paper-2);
  box-shadow: inset 2px 0 0 var(--accent);
}

.record-name {
  margin: 0 0 6px;
  font-size: 1.1875rem;
  font-weight: 650;
  letter-spacing: -0.022em;
}

.record-desc {
  margin: 0;
  font-size: 0.9375rem;
  color: var(--ink-soft);
  max-width: 54ch;
}

.record-meta {
  display: flex;
  flex-direction: column;
  gap: 10px;
  align-items: flex-start;
}

.status {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--mono);
  font-size: 0.6875rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
  white-space: nowrap;
}

.status::before {
  content: "";
  width: 7px;
  height: 7px;
  flex: 0 0 auto;
  border: 1px solid var(--muted);
}

.status-live { color: var(--accent); }
.status-live::before { background: var(--accent); border-color: var(--accent); }

.record-link {
  font-family: var(--mono);
  font-size: 0.6875rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px solid var(--accent-t);
  padding-bottom: 2px;
  transition: border-color 0.18s ease;
}

.record-link:hover { border-bottom-color: var(--accent); }

.rail-link {
  display: inline-block;
  margin-top: 16px;
}

/* ---------- prosa ---------- */

.prose { max-width: 68ch; }
.prose > p { margin: 0 0 16px; font-size: 1rem; color: var(--ink-soft); }
.prose > p:last-child { margin-bottom: 0; }
.prose h3 {
  margin: 34px 0 10px;
  font-size: 0.9375rem;
  font-weight: 650;
  letter-spacing: -0.01em;
  color: var(--ink);
}
.prose h3:first-child { margin-top: 0; }
.prose ul { margin: 0 0 16px; padding-left: 20px; color: var(--ink-soft); }
.prose li { margin-bottom: 8px; }
.prose strong { color: var(--ink); font-weight: 650; }
.prose a { color: var(--accent); text-decoration-color: var(--accent-t); text-underline-offset: 3px; }
.prose a:hover { text-decoration-color: var(--accent); }

.doc-date {
  margin: 0;
  font-family: var(--mono);
  font-size: 0.75rem;
  color: var(--muted);
  font-variant-numeric: tabular-nums;
}

/* ---------- contato ---------- */

.channels {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--rule);
  border: 1px solid var(--rule);
}

.channels li {
  background: var(--paper);
  padding: 18px 20px;
}

.channels .label { display: block; margin-bottom: 6px; }

.channels a,
.channels span {
  font-family: var(--mono);
  font-size: 0.875rem;
  color: var(--ink);
  text-decoration: none;
  word-break: break-word;
  border-bottom: 1px solid var(--rule);
  padding-bottom: 2px;
  transition: border-color 0.18s ease, color 0.18s ease;
}

.channels a:hover { color: var(--accent); border-bottom-color: var(--accent); }
.channels span { border-bottom-color: transparent; color: var(--muted); }

/* ---------- rodapé: o registro ---------- */

.record-block {
  background: var(--ink);
  color: #c3c9d2;
  padding: 72px 0 34px;
}

.record-block .label { color: #757e8b; }

.record-plate {
  display: grid;
  grid-template-columns: 1fr;
  gap: 36px;
  padding-bottom: 40px;
  border-bottom: 1px solid #262d36;
}

.record-id .plate-num {
  font-size: 2.5rem;
  line-height: 1;
  letter-spacing: -0.04em;
  color: var(--paper);
  display: block;
  margin-bottom: 14px;
}

.record-id .legal {
  margin: 0;
  font-size: 1rem;
  font-weight: 650;
  letter-spacing: -0.015em;
  color: var(--paper);
  max-width: 22ch;
}

.record-data {
  display: grid;
  grid-template-columns: 1fr;
  gap: 22px 40px;
  margin: 0;
}

.record-data div { min-width: 0; }
.record-data dt { margin-bottom: 5px; }
.record-data dd {
  margin: 0;
  font-family: var(--mono);
  font-size: 0.8125rem;
  font-variant-numeric: tabular-nums;
  line-height: 1.55;
  color: #dfe3e9;
  word-break: break-word;
}
.record-data a { color: #dfe3e9; text-decoration: none; border-bottom: 1px solid #39414c; padding-bottom: 1px; }
.record-data a:hover { color: var(--paper); border-bottom-color: #7f8b99; }

.record-foot {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px 28px;
  padding-top: 26px;
  font-size: 0.8125rem;
}

.record-foot p { margin: 0; }

.record-foot nav {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
}

.record-foot nav a {
  font-family: var(--mono);
  font-size: 0.6875rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: #9aa3ae;
  text-decoration: none;
  border-bottom: 1px solid transparent;
  padding-bottom: 3px;
  transition: color 0.18s ease, border-color 0.18s ease;
}

.record-foot nav a:hover { color: var(--paper); border-bottom-color: #5d6773; }

.record-block :focus-visible { outline-color: #7fd8bf; }

/* ---------- entrada ---------- */

@keyframes rise {
  from { opacity: 0; transform: translateY(10px); }
  to   { opacity: 1; transform: none; }
}

.hero-lead > *,
.hero .plate {
  animation: rise 0.6s cubic-bezier(0.2, 0.7, 0.3, 1) backwards;
}

.hero-lead > :nth-child(1) { animation-delay: 0.04s; }
.hero-lead > :nth-child(2) { animation-delay: 0.10s; }
.hero-lead > :nth-child(3) { animation-delay: 0.16s; }
.hero .plate { animation-delay: 0.22s; }

/* =========================================================
   Desktop — o layout muda de estrutura, não só de largura
   ========================================================= */

@media (min-width: 900px) {

  .hero { padding: 120px 0 104px; }

  .hero-grid {
    grid-template-columns: minmax(0, 1fr) 340px;
    gap: var(--gutter);
    align-items: start;
  }

  .section { padding: 96px 0; }

  .section-grid {
    grid-template-columns: var(--rail) minmax(0, 1fr);
    gap: var(--gutter);
  }

  .rail {
    position: sticky;
    top: 100px;
  }

  .record {
    grid-template-columns: minmax(0, 1fr) 200px;
    align-items: start;
    padding: 30px 0 30px 24px;
  }

  .split {
    grid-template-columns: minmax(0, 1fr) 300px;
    gap: var(--gutter);
  }

  .channels {
    grid-template-columns: repeat(3, 1fr);
  }

  .record-plate {
    grid-template-columns: 300px minmax(0, 1fr);
    gap: var(--gutter);
    align-items: start;
  }

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

@media (min-width: 1100px) {
  .record-id .plate-num { font-size: 3.25rem; }
}

/* Monitores grandes: o layout cresce junto, em vez de virar uma tira
   estreita no meio da tela. */
@media (min-width: 1700px) {
  :root {
    --rail: 264px;
    --gutter: 96px;
  }

  body { font-size: 17px; }

  .container { padding: 0 40px; }

  .hero { padding: 152px 0 132px; }
  .hero h1 { font-size: 4.25rem; }
  .hero-grid { grid-template-columns: minmax(0, 1fr) 420px; }
  .lede { font-size: 1.1875rem; }

  .section { padding: 120px 0; }

  .record { grid-template-columns: minmax(0, 1fr) 260px; padding: 38px 0 38px 28px; }
  .record-name { font-size: 1.375rem; }
  .record-desc { font-size: 1rem; }

  .plate-body { padding: 24px; gap: 20px; }
  .channels li { padding: 24px 26px; }

  .record-block { padding: 104px 0 44px; }
  .record-id .plate-num { font-size: 4.5rem; }
  .record-id .legal { font-size: 1.125rem; }
  .record-plate { grid-template-columns: 360px minmax(0, 1fr); }
}

/* Monitores 4K/5K sem escala do sistema: aqui o problema deixa de ser
   largura e passa a ser tamanho físico. Todo o sistema cresce junto. */
@media (min-width: 2200px) {
  :root {
    --rail: 320px;
    --gutter: 120px;
  }

  body { font-size: 19px; }

  .container {
    max-width: min(76vw, 2280px);
    padding: 0 56px;
  }

  .masthead .container { min-height: 92px; }
  .wordmark { font-size: 1.125rem; }
  .wordmark .mark { font-size: 0.9375rem; }

  .hero { padding: 190px 0 165px; }
  .hero h1 { font-size: 5.25rem; }
  .hero-grid { grid-template-columns: minmax(0, 1fr) 520px; }
  .lede { font-size: 1.3125rem; }

  .section { padding: 150px 0; }
  .split { grid-template-columns: minmax(0, 1fr) 420px; }
  .rail { top: 132px; }

  .record {
    grid-template-columns: minmax(0, 1fr) 320px;
    padding: 46px 0 46px 34px;
  }
  .record-name { font-size: 1.625rem; }
  .record-desc { font-size: 1.125rem; }

  .prose > p,
  .prose ul { font-size: 1.125rem; }
  .prose h3 { font-size: 1.125rem; margin-top: 44px; }
  .rail p { font-size: 0.9375rem; }

  .label,
  .masthead nav a,
  .rail h2,
  .status,
  .record-link,
  .toc a,
  .record-foot nav a { font-size: 0.8125rem; }

  .plate-body dd,
  .record-data dd,
  .channels a,
  .channels span { font-size: 0.9375rem; }

  .plate-body { padding: 28px; gap: 24px; }
  .channels li { padding: 28px 30px; }

  .record-block { padding: 140px 0 52px; }
  .record-id .plate-num { font-size: 5.75rem; }
  .record-id .legal { font-size: 1.25rem; }
  .record-plate { grid-template-columns: 440px minmax(0, 1fr); gap: var(--gutter); }
  .record-foot { font-size: 0.9375rem; }
}

/* ---------- acessibilidade: movimento reduzido ---------- */

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-delay: 0ms !important;
    transition-duration: 0.001ms !important;
  }
}

/* ---------- sumário lateral dos documentos ---------- */

.toc {
  list-style: none;
  margin: 16px 0 0;
  padding: 0;
  display: grid;
  gap: 7px;
}

.toc a {
  display: block;
  font-family: var(--mono);
  font-size: 0.6875rem;
  letter-spacing: 0.02em;
  color: var(--muted);
  text-decoration: none;
  border-left: 1px solid var(--rule);
  padding: 2px 0 2px 12px;
  transition: color 0.18s ease, border-color 0.18s ease;
}

.toc a:hover {
  color: var(--accent);
  border-left-color: var(--accent);
}

.prose h3 { scroll-margin-top: 96px; }