:root {
  --bg: #ffffff;
  --sky: #1d78c1;
  --sky-deep: #0c4f87;
  --sky-tint: #eaf4fc;
  --sky-2: #c4def2;
  --tail: #d3242c;
  --tail-deep: #a8161d;
  --amber: #8f5a00;
  --ink: #132638;
  --muted: #4c6073;
  --line: #d4e2ee;
  --sans: 'Barlow', system-ui, sans-serif;
  --cond: 'Barlow Condensed', 'Arial Narrow', sans-serif;
  --mono: 'Red Hat Mono', ui-monospace, monospace;
  --w: 1140px;
  --pass-bg: var(--sky-tint);
}
* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 400 1.04rem/1.6 var(--sans); overflow-x: hidden; }
a { color: var(--sky-deep); text-underline-offset: 3px; }
a:hover { text-decoration-thickness: 2px; }
:focus-visible { outline: 3px solid var(--tail); outline-offset: 2px; }
.skip { position: absolute; left: -999px; top: 8px; background: var(--ink); color: #fff; padding: 8px 12px; z-index: 10; }
.skip:focus { left: 8px; }
.wrap { max-width: var(--w); margin: 0 auto; padding: 0 20px; }
h1, h2, h3 { font-family: var(--cond); line-height: 1.05; margin: 0 0 .5em; letter-spacing: .005em; }
h1 { font-size: clamp(2.3rem, 5.4vw, 3.9rem); font-weight: 800; }
h2 { font-size: 1.85rem; font-weight: 700; }
h3 { font-size: 1.35rem; font-weight: 700; }
.lede { font-size: 1.16rem; color: var(--muted); max-width: 36em; margin: 0 0 1.4rem; }

/* Topo */
.top { background: #fff; border-bottom: 1px solid var(--line); position: relative; }
.top::after { content: ''; position: absolute; left: 0; right: 0; bottom: -1px; height: 3px; background: linear-gradient(90deg, var(--sky) 0 82%, #fff 82% 83%, var(--tail) 83%); }
.top-in { display: flex; align-items: center; justify-content: space-between; gap: 16px; min-height: 66px; flex-wrap: wrap; }
.brand { display: flex; align-items: center; gap: 10px; color: var(--ink); text-decoration: none; font: 600 1.45rem var(--cond); }
.brand b { color: var(--sky); font-weight: 800; }
.nav { display: flex; gap: 2px; flex-wrap: wrap; }
.nav a { color: var(--ink); text-decoration: none; padding: 8px 11px; font-weight: 600; font-size: .97rem; border-bottom: 2px solid transparent; }
.nav a:hover { color: var(--sky-deep); border-bottom-color: var(--sky-2); }
.nav a[aria-current] { color: var(--sky-deep); border-bottom-color: var(--tail); }

/* Hero */
.hero { background: var(--sky-tint); padding: 52px 0 56px; border-bottom: 1px solid var(--sky-2); }
.hero-in { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.12fr); gap: 48px; align-items: start; }
.help { font-size: .9rem; color: var(--muted); margin: 10px 0 0; font-weight: 400; }

/* Formulário */
.panel { display: grid; gap: 14px; background: #fff; border: 1px solid var(--sky-2); padding: 20px; }
.row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.row > span { display: grid; }
.row label { grid-template-rows: 1fr auto; }
label { display: grid; gap: 5px; font-weight: 600; font-size: .95rem; align-content: start; }
label small { font-weight: 400; color: var(--muted); }
.inp { display: flex; align-items: center; border: 1.5px solid var(--sky-2); background: #fff; min-height: 48px; }
.inp:focus-within { border-color: var(--sky); box-shadow: 0 0 0 3px var(--sky-tint); }
.inp .pre, .inp .suf { color: var(--muted); font: 500 .95rem var(--mono); padding: 0 10px; }
.inp .pre { padding-right: 0; }
.inp input { border: 0; outline: 0; background: transparent; font: 500 1.08rem var(--mono); color: var(--ink); padding: 11px 10px; width: 100%; min-width: 0; }
select { font: 500 1.02rem var(--sans); color: var(--ink); background: #fff; border: 1.5px solid var(--sky-2); padding: 11px 10px; min-height: 48px; width: 100%; }
select:focus { border-color: var(--sky); outline: none; box-shadow: 0 0 0 3px var(--sky-tint); }
fieldset { border: 0; padding: 0; margin: 0; min-width: 0; }
legend { font-weight: 600; font-size: .95rem; margin-bottom: 6px; padding: 0; }
.seg { display: grid; grid-template-columns: 1fr 1fr; }
.seg legend { grid-column: 1 / -1; }
.seg label { display: block; font-weight: 500; }
.seg input { position: absolute; opacity: 0; }
.seg span { display: block; text-align: center; padding: 11px 8px; border: 1.5px solid var(--sky-2); cursor: pointer; }
.seg label + label span { border-left: 0; }
.seg input:checked + span { background: var(--sky); border-color: var(--sky); color: #fff; }
.seg input:focus-visible + span { outline: 3px solid var(--tail); outline-offset: 2px; }

/* Bilhete */
.pass-col { min-width: 0; }
.pass { display: grid; grid-template-columns: minmax(0, 1fr) 188px; background: #fff; color: var(--ink); position: relative; filter: drop-shadow(0 14px 22px rgba(19, 38, 56, .14)); animation: pass-in .35s ease-out; }
@keyframes pass-in { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: none; } }
.pass-main { padding: 0 22px 20px; min-width: 0; }
.pass-top { display: flex; justify-content: space-between; gap: 10px; margin: 0 -22px 16px; padding: 10px 22px; background: var(--sky); color: #fff; font: 700 1.05rem var(--cond); letter-spacing: .02em; border-bottom: 4px solid var(--tail); }
.pass-seq { font: 500 .8rem var(--mono); opacity: .85; align-self: center; }
.pass-route { display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: 12px; }
.pass-route p { margin: 0; display: grid; line-height: 1; }
.pass-route b { font: 800 2.6rem var(--cond); color: var(--ink); }
.pass-route span { font: 500 .82rem var(--mono); color: var(--muted); margin-top: 4px; }
.pass-route .to { text-align: right; }
.plane { width: 100%; height: 26px; color: var(--sky); }
.pass-fields { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px 14px; margin: 18px 0 0; padding: 14px 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.pass-fields div { min-width: 0; }
.pass-fields dt { font: 500 .74rem var(--mono); color: var(--muted); }
.pass-fields dd { margin: 2px 0 0; font: 600 .98rem var(--mono); overflow-wrap: anywhere; }
.pass-big { margin: 16px 0 0; display: grid; }
.pass-big span { font-size: .95rem; color: var(--muted); }
.pass-big strong { font: 800 clamp(2.6rem, 6vw, 3.6rem)/1 var(--cond); color: var(--sky-deep); margin-top: 4px; }
.pass-big small { font: 500 .85rem var(--mono); color: var(--muted); margin-top: 6px; }
.pass-stub { position: relative; padding: 16px 18px 18px; border-left: 2px dashed var(--sky-2); display: flex; flex-direction: column; gap: 8px; min-width: 0; }
.pass-stub::before, .pass-stub::after { content: ''; position: absolute; left: -12px; width: 22px; height: 22px; border-radius: 50%; background: var(--pass-bg); }
.pass-stub::before { top: -11px; }
.pass-stub::after { bottom: -11px; }
.stub-label { margin: 0; font: 500 .78rem var(--mono); color: var(--muted); }
.stamp { margin: 2px 0 6px; align-self: flex-start; font: 800 1.45rem/1.05 var(--cond); padding: 6px 10px; border: 3px solid currentColor; transform: rotate(-4deg); }
.pass-ok .stamp { color: var(--sky-deep); }
.pass-mid .stamp { color: var(--amber); }
.pass-bad .stamp { color: var(--tail); }
.stub-line { margin: 0; font-size: .9rem; line-height: 1.4; }
.barcode { margin-top: auto; width: 100%; height: 38px; fill: var(--ink); padding-top: 8px; }
.pass-note { font-size: .88rem; color: var(--muted); margin: 18px 0 0; }
.pass-err { background: #fff; border-left: 4px solid var(--tail); padding: 14px 16px; }
.pass-err p { margin: 0; }
.pass-fallback { background: #fff; padding: 18px; border: 1px solid var(--sky-2); margin: 0; }

/* Blocos */
.block { padding: 52px 20px 8px; }
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; }
.split > div { min-width: 0; }
.note { font-size: .92rem; color: var(--muted); }
.board { list-style: none; margin: 0; padding: 0; border-top: 2px solid var(--ink); }
.board a { display: grid; grid-template-columns: 54px minmax(0, 1fr) minmax(0, 1.6fr) auto; gap: 18px; align-items: center; padding: 16px 4px; border-bottom: 1px solid var(--line); text-decoration: none; color: var(--ink); }
.board a:hover { background: var(--sky-tint); }
.bd-gate { font: 700 1.3rem var(--mono); color: #fff; background: var(--ink); text-align: center; padding: 6px 0; }
.bd-name { font: 700 1.4rem var(--cond); }
.bd-desc { color: var(--muted); font-size: .95rem; }
.bd-go { font: 700 .95rem var(--cond); color: var(--tail); letter-spacing: .03em; }
.bd-go::after { content: ' →'; }
.table-scroll { overflow-x: auto; max-width: 100%; }
table.ref { width: 100%; border-collapse: collapse; font-size: .97rem; }
table.ref caption { text-align: left; color: var(--muted); font-size: .88rem; padding-bottom: 8px; }
table.ref th, table.ref td { text-align: left; padding: 10px 10px; border-bottom: 1px solid var(--line); vertical-align: top; }
table.ref thead th { font: 600 .82rem var(--mono); color: var(--muted); border-bottom: 2px solid var(--ink); }
table.ref tbody th { font-weight: 700; }
table.ref small { display: block; font-weight: 400; color: var(--muted); font-size: .82rem; }
table.ref td { font-family: var(--mono); font-size: .92rem; }
.post-list { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: 1fr 1fr; gap: 0 32px; }
.post-list a { display: grid; gap: 4px; padding: 18px 0; border-bottom: 1px dashed var(--sky-2); text-decoration: none; color: var(--ink); }
.pl-title { font: 700 1.3rem/1.15 var(--cond); color: var(--sky-deep); }
.post-list a:hover .pl-title { text-decoration: underline; }
.pl-desc { color: var(--muted); font-size: .96rem; }
.post-list time { font: 500 .78rem var(--mono); color: var(--muted); }

/* Ferramenta */
.tool-page { padding-top: 26px; padding-bottom: 40px; --pass-bg: #fff; }
.crumbs { font-size: .9rem; color: var(--muted); margin-bottom: 14px; }
.tool-grid { display: grid; grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr); gap: 36px; align-items: start; }
.tool-grid .panel { background: var(--sky-tint); }
.tool-grid .inp, .tool-grid select { background: #fff; }
.how { margin-top: 48px; max-width: 46em; }

/* Artigo */
.article { max-width: 760px; padding-top: 26px; padding-bottom: 40px; }
.article-head h1 { font-size: clamp(2.1rem, 4.6vw, 3.1rem); }
.byline { font-size: .9rem; color: var(--muted); }
.tool-callout { display: flex; align-items: center; justify-content: space-between; gap: 16px; background: var(--sky-tint); border-left: 4px solid var(--tail); padding: 16px 18px; margin: 22px 0; }
.tool-callout p { margin: 0; }
.btn { display: inline-block; background: var(--sky-deep); color: #fff; text-decoration: none; font: 700 1.02rem var(--cond); padding: 10px 16px; white-space: nowrap; }
.btn:hover { background: var(--ink); }
.prose h2 { margin-top: 1.6em; }
.prose h3 { margin-top: 1.3em; }
.prose table { display: block; overflow-x: auto; max-width: 100%; border-collapse: collapse; font-size: .95rem; margin: 1.2em 0; }
.prose th, .prose td { border-bottom: 1px solid var(--line); padding: 9px 10px; text-align: left; vertical-align: top; }
.prose thead th { border-bottom: 2px solid var(--ink); font-family: var(--cond); font-size: 1.02rem; }
.prose td { font-variant-numeric: tabular-nums; }
.prose blockquote { margin: 1.2em 0; padding: 4px 18px; border-left: 4px solid var(--sky); background: var(--sky-tint); }
.prose code { font-family: var(--mono); font-size: .92em; }
.prose li { margin: .3em 0; }
.sources { margin-top: 36px; font-size: .94rem; }
.sources h2, .more h2 { font-size: 1.4rem; }
.disclaimer { font-size: .88rem; color: var(--muted); border-top: 1px dashed var(--sky-2); padding-top: 14px; margin-top: 28px; }
.more { margin-top: 30px; }
.more ul { padding-left: 1.1em; }
.list-page { padding-top: 30px; padding-bottom: 40px; }
.static { padding-bottom: 50px; }
.contact-pending { background: var(--sky-tint); padding: 12px 14px; }

/* Rodapé */
.foot { margin-top: 64px; background: var(--ink); color: #dce7f1; position: relative; }
.perf { height: 14px; background: radial-gradient(circle at 50% 0, var(--bg) 6px, transparent 6.5px) 0 0 / 22px 14px repeat-x; }
.foot-in { display: grid; grid-template-columns: 1.6fr 1fr; gap: 32px; padding-top: 28px; padding-bottom: 12px; }
.foot-in p { font-size: .94rem; max-width: 40em; }
.foot-brand { display: flex; align-items: center; gap: 8px; font: 600 1.3rem var(--cond); color: #fff; margin: 0 0 8px; }
.foot-brand b { color: #8cc4ef; }
.foot nav { display: flex; flex-direction: column; gap: 6px; }
.foot a { color: #fff; }
.foot-copy { font: 500 .8rem var(--mono); color: #a9bccd; padding-bottom: 26px; }

@media (max-width: 900px) {
  .hero-in, .tool-grid, .split { grid-template-columns: minmax(0, 1fr); gap: 28px; }
  .board a { grid-template-columns: 46px minmax(0, 1fr) auto; }
  .bd-desc { grid-column: 2 / -1; grid-row: 2; }
}
@media (max-width: 640px) {
  .wrap { padding: 0 16px; }
  .top-in { padding-top: 10px; gap: 6px; }
  .nav { width: calc(100% + 32px); margin: 0 -16px; padding: 0 10px 6px; flex-wrap: nowrap; overflow-x: auto; scrollbar-width: none; -webkit-overflow-scrolling: touch; }
  .nav::-webkit-scrollbar { display: none; }
  .nav a { white-space: nowrap; }
  .hero { padding: 26px 0 34px; }
  .lede { font-size: 1.06rem; }
  .panel { padding: 16px; }
  .row { gap: 10px; }
  .pass { grid-template-columns: minmax(0, 1fr); }
  .pass-main { padding: 0 16px 16px; }
  .pass-top { margin: 0 -16px 14px; padding: 10px 16px; }
  .pass-fields { grid-template-columns: 1fr 1fr; }
  .pass-route b { font-size: 2.2rem; }
  .pass-stub { border-left: 0; border-top: 2px dashed var(--sky-2); padding: 18px 16px; }
  .pass-stub::before, .pass-stub::after { top: -12px; bottom: auto; }
  .pass-stub::before { left: -11px; }
  .pass-stub::after { left: auto; right: -11px; }
  .barcode { max-width: 220px; }
  .block { padding: 40px 16px 4px; }
  .post-list { grid-template-columns: 1fr; }
  .board a { gap: 6px 12px; padding: 14px 0; }
  .bd-go { display: none; }
  .board a { grid-template-columns: 42px minmax(0, 1fr); }
  .tool-callout { flex-direction: column; align-items: flex-start; }
  .foot-in { grid-template-columns: 1fr; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; scroll-behavior: auto !important; }
}