/* Lumen Catch: moldura de observatório. Cores de lib/ui/palette.dart. */

@font-face {
  font-family: "IBM Plex Mono";
  font-weight: 400;
  font-style: normal;
  font-display: swap;
  src: url("fonts/IBMPlexMono-Regular.ttf") format("truetype");
}
@font-face {
  font-family: "IBM Plex Mono";
  font-weight: 500;
  font-style: normal;
  font-display: swap;
  src: url("fonts/IBMPlexMono-Medium.ttf") format("truetype");
}
@font-face {
  font-family: "IBM Plex Mono";
  font-weight: 600;
  font-style: normal;
  font-display: swap;
  src: url("fonts/IBMPlexMono-SemiBold.ttf") format("truetype");
}

:root {
  color-scheme: dark;
  --space-top: #070a14;
  --space-bottom: #020308;
  --star: 157 176 214;
  --ink: #c9d3e6;
  --ink-soft: #9aa5bc;
  --ink-dim: #6e7890;
  --line: #283047;
  --lumen: #ffb13b;
  --lumen-core: #fff3d6;
  --font: "IBM Plex Mono", ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;
}

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

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

body {
  margin: 0;
  min-height: 100vh;
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  background: var(--space-bottom)
    radial-gradient(120% 100% at 50% 0%, var(--space-top), var(--space-bottom)) no-repeat;
  background-size: 100% 720px;
  color: var(--ink-soft);
  font: 400 15px/1.75 var(--font);
}

a {
  color: var(--lumen);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
  overflow-wrap: anywhere;
}
a:hover {
  color: var(--lumen-core);
}
:focus-visible {
  outline: 2px solid var(--lumen);
  outline-offset: 3px;
  border-radius: 2px;
}
strong {
  color: var(--ink);
  font-weight: 600;
}

/* Barra do topo */

.bar {
  width: 100%;
  max-width: 760px;
  margin: 0 auto;
  padding: 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--ink);
  text-decoration: none;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.22em;
  white-space: nowrap;
}
.brand:hover {
  color: var(--ink);
}
.brand img {
  border-radius: 6px;
}
.langs {
  display: flex;
  gap: 2px;
  margin-left: auto;
}
.langs a {
  padding: 10px 8px;
  border-bottom: 1px solid transparent;
  color: var(--ink-dim);
  text-decoration: none;
  font-size: 12px;
  font-weight: 500;
  line-height: 1;
  letter-spacing: 0.16em;
}
.langs a:hover {
  color: var(--ink);
}
.langs a[aria-current="page"] {
  color: var(--ink);
  border-bottom-color: var(--lumen);
}

/* Documento */

.doc {
  flex: 1;
  width: 100%;
  max-width: 760px;
  margin: 0 auto;
  padding: 40px 16px 72px;
  border-top: 1px solid var(--line);
  counter-reset: section;
}
.kicker {
  margin: 0 0 12px;
  font-size: 11px;
  font-weight: 500;
  line-height: 1.5;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-dim);
}
.doc h1 {
  margin: 0 0 16px;
  font-size: clamp(28px, 7vw, 38px);
  font-weight: 600;
  line-height: 1.15;
  letter-spacing: 0.02em;
  color: var(--ink);
  text-wrap: balance;
}
.meta {
  margin: 0;
  font-size: 13px;
  line-height: 1.6;
  color: var(--ink-dim);
}

.summary {
  margin: 36px 0;
  padding: 20px 20px 4px;
  border: 1px solid var(--line);
  border-left: 2px solid var(--lumen);
  background: rgb(7 10 20 / 0.7);
}

.toc ol {
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: toc;
  columns: 2 240px;
  column-gap: 32px;
  font-size: 13px;
  line-height: 1.5;
}
.toc li {
  counter-increment: toc;
  padding: 4px 0;
  break-inside: avoid;
}
.toc li::before {
  content: counter(toc, decimal-leading-zero);
  margin-right: 10px;
  color: var(--ink-dim);
}
.toc a {
  color: var(--ink-soft);
  text-decoration: none;
}
.toc a:hover {
  color: var(--ink);
  text-decoration: underline;
}

.doc h2 {
  counter-increment: section;
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin: 56px 0 16px;
  padding-top: 20px;
  border-top: 1px solid var(--line);
  font-size: 14px;
  font-weight: 600;
  line-height: 1.4;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink);
  scroll-margin-top: 16px;
}
.doc h2::before {
  content: counter(section, decimal-leading-zero);
  font-weight: 500;
  color: var(--lumen);
}

.doc p {
  margin: 0 0 16px;
}
.doc ul {
  margin: 0 0 16px;
  padding-left: 1.25em;
}
.doc li + li {
  margin-top: 8px;
}
.doc li::marker {
  color: var(--ink-dim);
}

.data {
  margin: 0 0 20px;
  border-top: 1px solid var(--line);
}
.data div {
  display: grid;
  grid-template-columns: 11em 1fr;
  gap: 2px 20px;
  padding: 12px 0;
  border-bottom: 1px solid var(--line);
}
.data dt {
  font-weight: 500;
  color: var(--ink);
}
.data dd {
  margin: 0;
}
@media (max-width: 560px) {
  .data div {
    grid-template-columns: 1fr;
  }
}

.doc .note {
  margin-top: 40px;
  font-size: 13px;
  color: var(--ink-dim);
}

/* Rodapé */

.foot {
  width: 100%;
  max-width: 760px;
  margin: 0 auto;
  padding: 24px 16px 40px;
  border-top: 1px solid var(--line);
  font-size: 12px;
  line-height: 1.8;
  letter-spacing: 0.04em;
  text-align: center;
  color: var(--ink-dim);
}
.foot p {
  margin: 0;
}
.foot a {
  color: var(--ink-soft);
}

/* Página inicial */

.home::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background-image:
    radial-gradient(circle at 7% 12%, rgb(var(--star) / 0.5) 0 1px, transparent 1.6px),
    radial-gradient(circle at 18% 64%, rgb(var(--star) / 0.3) 0 1px, transparent 1.6px),
    radial-gradient(circle at 26% 28%, rgb(var(--star) / 0.4) 0 1px, transparent 1.6px),
    radial-gradient(circle at 33% 88%, rgb(var(--star) / 0.35) 0 1px, transparent 1.6px),
    radial-gradient(circle at 41% 8%, rgb(var(--star) / 0.3) 0 1px, transparent 1.6px),
    radial-gradient(circle at 12% 40%, rgb(var(--star) / 0.25) 0 1px, transparent 1.6px),
    radial-gradient(circle at 58% 94%, rgb(var(--star) / 0.4) 0 1px, transparent 1.6px),
    radial-gradient(circle at 64% 18%, rgb(var(--star) / 0.45) 0 1px, transparent 1.6px),
    radial-gradient(circle at 72% 72%, rgb(var(--star) / 0.3) 0 1px, transparent 1.6px),
    radial-gradient(circle at 79% 36%, rgb(var(--star) / 0.35) 0 1px, transparent 1.6px),
    radial-gradient(circle at 86% 10%, rgb(var(--star) / 0.3) 0 1px, transparent 1.6px),
    radial-gradient(circle at 91% 58%, rgb(var(--star) / 0.5) 0 1px, transparent 1.6px),
    radial-gradient(circle at 95% 84%, rgb(var(--star) / 0.3) 0 1px, transparent 1.6px),
    radial-gradient(circle at 4% 80%, rgb(var(--star) / 0.4) 0 1px, transparent 1.6px),
    radial-gradient(circle at 50% 50%, rgb(var(--star) / 0.2) 0 1px, transparent 1.6px),
    radial-gradient(circle at 83% 92%, rgb(var(--star) / 0.25) 0 1px, transparent 1.6px);
}
.home .bar {
  justify-content: flex-end;
}
.hero {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 16px 16px 56px;
  text-align: center;
}
.hero-icon {
  width: 136px;
  height: 136px;
  margin-bottom: 36px;
  border-radius: 30px;
  box-shadow:
    0 0 0 1px var(--line),
    0 0 90px rgb(255 177 59 / 0.16);
}
.wordmark {
  margin: 0 0 28px;
  padding-left: 0.16em;
  font-size: clamp(40px, 13vw, 68px);
  font-weight: 600;
  line-height: 1.08;
  letter-spacing: 0.16em;
  color: var(--ink);
}
.premise {
  max-width: 42ch;
  margin: 0 0 12px;
}
.status {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 28px 0 0;
  padding: 8px 14px;
  border: 1px solid var(--line);
  font-size: 11px;
  font-weight: 500;
  line-height: 1.5;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink);
}
.status::before {
  content: "";
  flex: none;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--lumen);
  box-shadow: 0 0 10px 1px rgb(255 177 59 / 0.8);
}
.home .foot {
  border-top: 0;
}