/* Ialum — estilos compartilhados */

/* Paleta derivada do logo: navy #011729 e creme #eceae6.
   Claro = tinta navy sobre creme. Escuro = creme sobre navy. */

:root {
  --bg:   #fbfbfa;
  --fg:   #0c2233;
  --mute: #5a7186;
  --rule: #dee4e9;
  --accent: #0c2233;
  --measure: 34rem;
  --sans: ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  --serif: ui-serif, Georgia, "Times New Roman", serif;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg:   #011729;
    --fg:   #eceae6;
    --mute: #7d96ac;
    --rule: #102d44;
    --accent: #eceae6;
  }
}

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

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

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--serif);
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

main {
  max-width: var(--measure);
  margin: 0 auto;
  padding: 0 1.75rem;
}

/* ---- marca ---- */

.mark {
  padding: 6rem 0 0;
  font-family: var(--sans);
  font-size: .75rem;
  font-weight: 500;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--mute);
}

a.mark {
  display: inline-block;
  text-decoration: none;
  transition: color .18s ease;
}

a.mark:hover,
a.mark:focus-visible { color: var(--fg); }

/* ---- hero (home) ---- */

.hero { padding: 3.5rem 0 7rem; }

h1 {
  margin: 0;
  font-size: clamp(2.5rem, 9vw, 4rem);
  font-weight: 400;
  line-height: 1.08;
  letter-spacing: -0.02em;
  text-wrap: balance;
}

.lede {
  margin: 2rem 0 0;
  font-size: clamp(1.125rem, 3vw, 1.3rem);
  line-height: 1.55;
  color: var(--mute);
  text-wrap: pretty;
}

/* ---- pilares (home) ---- */

.pillars { border-top: 1px solid var(--rule); }

.pillar {
  padding: 3.25rem 0;
  border-bottom: 1px solid var(--rule);
}

.pillar h2 {
  margin: 0 0 .85rem;
  font-family: var(--sans);
  font-size: .78rem;
  font-weight: 600;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--mute);
}

.pillar p {
  margin: 0;
  font-size: clamp(1.25rem, 4vw, 1.6rem);
  line-height: 1.4;
  letter-spacing: -0.01em;
  text-wrap: pretty;
}

/* ---- fechamento (home) ---- */

.close { padding: 7rem 0 0; }

.close p {
  margin: 0;
  font-size: clamp(1.25rem, 4vw, 1.6rem);
  line-height: 1.45;
  letter-spacing: -0.01em;
  text-wrap: pretty;
}

.close p + p {
  margin-top: 1.5rem;
  color: var(--mute);
}

/* ---- documentos legais ---- */

.doc { padding: 3rem 0 0; }

.doc h1 {
  font-size: clamp(1.9rem, 6vw, 2.6rem);
  line-height: 1.15;
}

.doc .updated {
  margin: 1.25rem 0 0;
  font-family: var(--sans);
  font-size: .8rem;
  letter-spacing: .04em;
  color: var(--mute);
}

.doc .intro {
  margin: 2.25rem 0 0;
  font-size: 1.075rem;
  color: var(--mute);
  text-wrap: pretty;
}

.doc h2 {
  margin: 3.5rem 0 1rem;
  padding-top: 2rem;
  border-top: 1px solid var(--rule);
  font-family: var(--sans);
  font-size: .82rem;
  font-weight: 600;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--mute);
}

.doc p {
  margin: 0 0 1.15rem;
  text-wrap: pretty;
}

.doc ul {
  margin: 0 0 1.15rem;
  padding-left: 1.15rem;
}

.doc li {
  margin-bottom: .85rem;
  text-wrap: pretty;
}

.doc li::marker { color: var(--mute); }

.doc strong { font-weight: 600; }

.doc code {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: .9em;
  padding: .1em .35em;
  border-radius: 3px;
  background: color-mix(in srgb, var(--mute) 14%, transparent);
}

.doc a {
  color: inherit;
  text-decoration: none;
  border-bottom: 1px solid var(--rule);
  transition: border-color .18s ease;
}

.doc a:hover,
.doc a:focus-visible { border-color: currentColor; }

/* ---- rodapé ---- */

footer {
  padding: 8rem 0 5rem;
  font-family: var(--sans);
  font-size: .8rem;
  color: var(--mute);
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem 1.75rem;
  align-items: baseline;
}

footer .legal {
  margin: 1.75rem 0 0;
  font-size: .74rem;
  line-height: 1.7;
  letter-spacing: .01em;
  opacity: .8;
}

.doc + footer,
footer.doc-footer {
  margin-top: 4rem;
  border-top: 1px solid var(--rule);
  padding-top: 2.5rem;
}

footer a {
  color: inherit;
  text-decoration: none;
  border-bottom: 1px solid var(--rule);
  padding-bottom: 1px;
  transition: color .18s ease, border-color .18s ease;
}

footer a:hover,
footer a:focus-visible {
  color: var(--fg);
  border-color: currentColor;
}

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

@media (max-width: 30rem) {
  .mark  { padding-top: 4rem; }
  .hero  { padding: 2.5rem 0 5rem; }
  .close { padding-top: 5rem; }
  .doc   { padding-top: 2rem; }
  footer { padding: 6rem 0 4rem; }
}