/* Turn The Sign: estilo compartilhado do blog.
   Mesmos tokens do site principal. Faixa azul no topo, texto em papel claro. */
:root {
  --ground: #F2F4F7; --surface: #FFFFFF; --ink: #0F1728; --ink-soft: #4A556B; --line: #D5DAE3;
  --enamel: #1740C9; --enamel-deep: #10309A; --on-enamel: #FFFFFF; --on-enamel-soft: #C9D6FF;
  --enamel-text: #1740C9; --lamp: #FFC531; --on-lamp: #1C1400; --closed: #C02A24; --ok: #17734A;
  --sign-edge: #0A1B5C;
  --display: "Archivo", "Arial Black", "Helvetica Neue", Arial, sans-serif;
  --body: "Hanken Grotesk", "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --ground: #0B1120; --surface: #121A2E; --ink: #EEF1F7; --ink-soft: #A3ADC2; --line: #27324F;
    --enamel: #1F49D6; --enamel-deep: #15348F; --enamel-text: #93AEFF; --closed: #F2706A; --ok: #53C795;
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --ground: #0B1120; --surface: #121A2E; --ink: #EEF1F7; --ink-soft: #A3ADC2; --line: #27324F;
  --enamel: #1F49D6; --enamel-deep: #15348F; --enamel-text: #93AEFF; --closed: #F2706A; --ok: #53C795;
  color-scheme: dark;
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--ground); color: var(--ink); font-family: var(--body); font-size: 1.0625rem; line-height: 1.65; }
img { max-width: 100%; height: auto; }
a { color: var(--enamel-text); }
a:focus-visible, button:focus-visible { outline: 3px solid var(--lamp); outline-offset: 3px; }
.wrap { max-width: 72rem; margin-inline: auto; padding-left: max(20px, env(safe-area-inset-left, 0px)); padding-right: max(20px, env(safe-area-inset-right, 0px)); }

/* topo */
body::before { content: ""; position: fixed; inset: 0 0 auto; height: env(safe-area-inset-top, 0px); z-index: 10; background: var(--enamel); }
.topbar { position: sticky; top: env(safe-area-inset-top, 0px); z-index: 20; background: var(--enamel); color: var(--on-enamel); }
.masthead { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: .5rem 1.5rem; padding-block: .8rem; }
.wordmark { display: inline-flex; align-items: center; gap: .65rem; font-family: var(--display); font-stretch: 125%; font-weight: 900; font-size: 1.05rem; letter-spacing: .06em; text-transform: uppercase; color: var(--on-enamel); text-decoration: none; }
.wordmark svg { width: 1.9rem; height: 1.9rem; flex: none; }
.masthead nav { display: flex; flex-wrap: wrap; align-items: center; gap: .35rem 1.4rem; }
.masthead nav a { color: var(--on-enamel-soft); text-decoration: none; font-weight: 600; font-size: .95rem; }
.masthead nav a:hover, .masthead nav a[aria-current="page"] { color: var(--on-enamel); }
.btn { display: inline-flex; align-items: center; justify-content: center; font-family: var(--display); font-stretch: 112%; font-weight: 800; font-size: 1rem; text-decoration: none; padding: .9rem 1.4rem; border: 2px solid var(--sign-edge); border-radius: 4px; background: var(--lamp); color: var(--on-lamp); box-shadow: 4px 4px 0 var(--sign-edge); }
.btn:hover { transform: translate(2px, 2px); box-shadow: 2px 2px 0 var(--sign-edge); }
.masthead nav a.btn, .masthead nav a.btn:hover { color: var(--on-lamp); padding: .5rem .9rem; font-size: .85rem; box-shadow: 3px 3px 0 var(--sign-edge); }

/* cabeçalho de página */
.page-head { background: var(--enamel); color: var(--on-enamel); }
.page-head .wrap { padding-block: clamp(2rem, 1rem + 4vw, 3.75rem); display: grid; gap: 1rem; max-width: 52rem; margin-left: max(0px, calc((100% - 72rem) / 2)); }
.crumbs { font-family: var(--mono); font-size: .8rem; letter-spacing: .06em; text-transform: uppercase; color: var(--on-enamel-soft); }
.crumbs a { color: inherit; }
.page-head h1 { margin: 0; font-family: var(--display); font-stretch: 115%; font-weight: 800; font-size: clamp(2rem, 1.2rem + 3.2vw, 3.25rem); line-height: 1.05; letter-spacing: -.01em; text-wrap: balance; }
.lede { margin: 0; font-size: 1.2rem; line-height: 1.5; color: var(--on-enamel-soft); max-width: 40rem; }
.byline { margin: 0; font-family: var(--mono); font-size: .8rem; color: var(--on-enamel-soft); }

/* artigo */
.article { padding-block: clamp(2rem, 1rem + 4vw, 3.5rem); }
.prose { max-width: 42rem; display: grid; gap: 1.1rem; }
.prose > * { margin: 0; }
.prose h2 { font-family: var(--display); font-stretch: 112%; font-weight: 800; font-size: 1.6rem; line-height: 1.15; margin-top: 1.4rem; text-wrap: balance; }
.prose h3 { font-size: 1.2rem; font-weight: 700; margin-top: .6rem; }
.prose ul, .prose ol { padding-left: 1.3rem; display: grid; gap: .4rem; }
.prose code { font-family: var(--mono); font-size: .9em; background: var(--surface); border: 1px solid var(--line); border-radius: 3px; padding: .05rem .3rem; }
.prose blockquote { border-left: 4px solid var(--lamp); padding-left: 1rem; color: var(--ink-soft); }
.callout { background: var(--surface); border: 1px solid var(--line); border-radius: 6px; padding: 1.1rem 1.25rem; }
.callout strong { display: block; font-family: var(--mono); font-size: .8rem; letter-spacing: .06em; text-transform: uppercase; color: var(--enamel-text); margin-bottom: .3rem; }
.checklist { list-style: none; padding: 0 !important; }
.checklist li { padding-left: 1.6rem; position: relative; }
.checklist li::before { content: ""; position: absolute; left: 0; top: .35em; width: .9rem; height: .9rem; border: 2px solid var(--ink-soft); border-radius: 2px; }
.cta { margin-top: 2.5rem; max-width: 42rem; display: grid; gap: .8rem; background: var(--lamp); color: var(--on-lamp); border: 3px solid var(--sign-edge); border-radius: 6px; padding: 1.5rem; box-shadow: 6px 6px 0 var(--sign-edge); }
.cta h2 { margin: 0; font-family: var(--display); font-stretch: 112%; font-weight: 800; font-size: 1.5rem; line-height: 1.15; }
.cta p { margin: 0; }
.cta a { color: inherit; font-weight: 700; }
.related { margin-top: 2.5rem; max-width: 42rem; border-top: 2px solid var(--ink); padding-top: 1rem; }
.related h2 { font-size: 1rem; font-family: var(--mono); letter-spacing: .06em; text-transform: uppercase; margin: 0 0 .5rem; }

/* lista do blog */
.posts { padding-block: clamp(2rem, 1rem + 4vw, 3.5rem); }
.post-list { list-style: none; margin: 0; padding: 0; border-top: 2px solid var(--ink); max-width: 52rem; }
.post-list li { border-bottom: 1px solid var(--line); padding-block: 1.4rem; display: grid; gap: .35rem; }
.post-list a { font-family: var(--display); font-stretch: 112%; font-weight: 800; font-size: 1.35rem; line-height: 1.2; color: var(--ink); text-decoration: none; }
.post-list a:hover { color: var(--enamel-text); }
.post-list p { margin: 0; color: var(--ink-soft); }
.post-meta { font-family: var(--mono); font-size: .8rem; color: var(--ink-soft); }

/* rodapé */
.site-foot .wrap { display: flex; flex-wrap: wrap; justify-content: space-between; gap: .5rem 2rem; padding-block: 1.75rem; font-size: .9rem; color: var(--ink-soft); border-top: 1px solid var(--line); }

@media (max-width: 38rem) {
  .masthead nav a:not(.btn) { display: none; }
}