/* OpenCena: site. Preto, branco e cinzas; o laranja da marca só em detalhes. */

:root {
  color-scheme: light;
  --bg: #fafaf9;
  --panel: #ffffff;
  --panel-2: #f2f2f0;
  --text: #141413;
  --muted: #5c5c57;
  --subtle: #8c8c85;
  --line: #e4e4e1;
  --line-strong: #d0d0cc;
  --accent: #141413;
  --accent-ink: #ffffff;
  --brand: #e0533c;
  --logo-bg: #141413;
  --logo-dot: #ffffff;
  --shadow: 0 24px 60px rgba(20, 20, 15, 0.1);
  --max: 1120px;
  --r: 4px;
  --font: Inter, ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --mono: "Courier Prime", "Courier New", Courier, monospace;
}
:root[data-theme="dark"] {
  color-scheme: dark;
  --bg: #0f0f0e;
  --panel: #171716;
  --panel-2: #1d1d1c;
  --text: #ecece7;
  --muted: #a3a39b;
  --subtle: #74746c;
  --line: #272726;
  --line-strong: #363634;
  --accent: #ecece7;
  --accent-ink: #0f0f0e;
  --brand: #ff6a52;
  --logo-bg: #ecece7;
  --logo-dot: #0f0f0e;
  --shadow: 0 24px 60px rgba(0, 0, 0, 0.45);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 76px; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.6 var(--font);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; }
h1, h2, h3 { letter-spacing: -0.02em; line-height: 1.15; margin: 0; }
p { margin: 0; }
.wrap { max-width: var(--max); margin: 0 auto; padding: 0 24px; }
.muted { color: var(--muted); }
.mono { font-family: var(--mono); }

/* botões */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  height: 40px; padding: 0 16px;
  border: 1px solid var(--line-strong); border-radius: var(--r);
  background: var(--panel); color: var(--text);
  font: 500 14px var(--font); text-decoration: none; cursor: pointer;
  transition: background 0.15s, border-color 0.15s;
}
.btn:hover { border-color: var(--text); }
.btn.primary { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); }
.btn.primary:hover { opacity: 0.88; }
.btn.small { height: 34px; padding: 0 12px; font-size: 13px; }
.btn svg { width: 16px; height: 16px; flex: none; }
.icon-btn {
  width: 34px; height: 34px; display: inline-grid; place-items: center;
  border: 1px solid transparent; border-radius: var(--r);
  background: none; color: var(--muted); cursor: pointer; font: 500 12px var(--font);
}
.icon-btn:hover { color: var(--text); border-color: var(--line); }
.icon-btn svg { width: 17px; height: 17px; }
.lang-btn { width: auto; padding: 0 8px; gap: 6px; display: inline-flex; align-items: center; }

/* cabeçalho */
/* o cabeçalho é montado pelo site.js; a altura fica reservada para a página não pular */
#topo { display: block; height: 61px; }
.traduzindo body { visibility: hidden; }
.top {
  position: sticky; top: 0; z-index: 20;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}
.top .wrap { display: flex; align-items: center; gap: 28px; height: 60px; }
.brand { display: flex; align-items: center; gap: 9px; text-decoration: none; font-weight: 600; font-size: 17px; letter-spacing: -0.02em; }
.brand b { font-weight: 600; color: var(--muted); }
.logo { width: 24px; height: 24px; flex: none; }
.beta {
  font: 600 10px var(--font); letter-spacing: 0.06em; text-transform: uppercase;
  padding: 2px 6px; border-radius: 3px; border: 1px solid var(--brand); color: var(--brand);
}
.nav { display: flex; gap: 4px; flex: 1; }
.nav a {
  padding: 6px 10px; border-radius: var(--r);
  color: var(--muted); text-decoration: none; font-size: 14px; font-weight: 500;
}
.nav a:hover, .nav a[aria-current="page"] { color: var(--text); background: var(--panel-2); }
.top-actions { display: flex; align-items: center; gap: 6px; }
.menu-btn { display: none; }

@media (max-width: 860px) {
  .nav {
    display: none; position: absolute; top: 60px; left: 0; right: 0;
    flex-direction: column; padding: 12px 16px; gap: 2px;
    background: var(--bg); border-bottom: 1px solid var(--line);
  }
  .nav.open { display: flex; }
  .nav a { padding: 10px 12px; }
  .menu-btn { display: inline-grid; }
  .top .wrap { gap: 12px; justify-content: space-between; }
  .brand { margin-right: auto; }
}
@media (max-width: 420px) {
  .wrap { padding: 0 16px; }
  .donate-label { display: none; }
}

/* seções */
section { padding: 96px 0; }
section + section { border-top: 1px solid var(--line); }
.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font: 600 12px var(--font); letter-spacing: 0.08em; text-transform: uppercase; color: var(--muted);
  margin-bottom: 14px;
}
.eyebrow::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: var(--brand); }
.head { max-width: 640px; margin-bottom: 44px; }
.head h2 { font-size: 40px; margin-bottom: 14px; }
@media (max-width: 700px) { .head h2 { font-size: 30px; } }
.head p { color: var(--muted); font-size: 17px; }

/* hero */
.hero { padding: 72px 0 88px; border: 0; overflow: hidden; }
.hero-grid { display: grid; grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr); gap: 56px; align-items: center; }
@media (max-width: 900px) { .hero-grid { grid-template-columns: 1fr; gap: 40px; } }
.hero-text { max-width: 520px; }
.hero h1 { font-size: 54px; letter-spacing: -0.035em; margin: 18px 0 18px; }
@media (max-width: 1100px) { .hero h1 { font-size: 46px; } }
@media (max-width: 600px) { .hero h1 { font-size: 36px; } }
.hero h1 em { font-style: normal; color: var(--muted); }
.hero .lead { font-size: 18px; color: var(--muted); margin: 0 0 28px; }
.hero-cta { display: flex; gap: 10px; flex-wrap: wrap; }
.hero-note { margin-top: 16px; font-size: 13px; color: var(--subtle); }
.pill {
  display: inline-flex; align-items: center; gap: 8px;
  border: 1px solid var(--line); border-radius: 999px; padding: 4px 12px 4px 6px;
  font-size: 13px; color: var(--muted); background: var(--panel);
}
.pill .beta { border-radius: 999px; }
.shot {
  border: 1px solid var(--line-strong); border-radius: 8px; overflow: hidden;
  box-shadow: var(--shadow); background: var(--panel);
}
.shot img { width: 100%; height: auto; aspect-ratio: 16 / 10; object-fit: cover; object-position: top left; }
[data-theme="dark"] .shot .img-claro, :root:not([data-theme="dark"]) .shot .img-escuro { display: none; }

/* formatos */
.grid3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
@media (max-width: 860px) { .grid3 { grid-template-columns: 1fr; } }
.card {
  border: 1px solid var(--line); border-radius: var(--r); background: var(--panel);
  padding: 28px;
}
.card h3 { font-size: 19px; margin: 18px 0 8px; }
.card p { color: var(--muted); font-size: 15px; }
.card .ico {
  width: 40px; height: 40px; display: grid; place-items: center;
  border: 1px solid var(--line); border-radius: var(--r); background: var(--panel-2);
}
.card .ico svg { width: 20px; height: 20px; }
.sample {
  margin-top: 20px; padding: 16px; border-radius: var(--r);
  background: var(--panel-2); font: 12.5px/1.55 var(--mono); color: var(--text);
}

/* carrossel de funcionalidades */
.carousel { position: relative; }
.track-wrap { position: relative; }
.arrow {
  position: absolute; top: calc(50% - 60px); z-index: 2;
  width: 44px; height: 44px; border-radius: 50%; display: grid; place-items: center;
  border: 1px solid var(--line-strong); background: var(--panel); color: var(--text);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.12); cursor: pointer;
}
.arrow:hover { border-color: var(--text); }
.arrow svg { width: 20px; height: 20px; }
.arrow.prev { left: -22px; }
.arrow.next { right: -22px; }
@media (max-width: 1180px) { .arrow.prev { left: 8px; } .arrow.next { right: 8px; } }
.track {
  display: flex; gap: 20px; overflow-x: auto; scroll-snap-type: x mandatory;
  scrollbar-width: none; padding-bottom: 4px;
}
.track::-webkit-scrollbar { display: none; }
.slide {
  flex: 0 0 min(680px, 86%); scroll-snap-align: start;
  border: 1px solid var(--line); border-radius: 8px; background: var(--panel); overflow: hidden;
}
.slide img { width: 100%; height: auto; aspect-ratio: 16 / 10; object-fit: cover; object-position: top left; border-bottom: 1px solid var(--line); background: var(--panel-2); }
.slide-text { padding: 18px 20px 20px; }
.slide-text h3 { margin-bottom: 6px; }
.slide-text h3 { font-size: 19px; }
.slide-text p { color: var(--muted); font-size: 15px; }
.carousel-nav { display: flex; align-items: center; gap: 14px; margin-top: 22px; }
.dots { display: flex; gap: 6px; flex: 1; }
.dots button {
  width: 22px; height: 4px; border: 0; border-radius: 2px; padding: 0; cursor: pointer;
  background: var(--line-strong);
}
.dots button[aria-current="true"] { background: var(--text); }
.tabs { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 22px; }
.tabs button {
  border: 1px solid var(--line); background: var(--panel); color: var(--muted);
  border-radius: 999px; padding: 6px 14px; font: 500 13px var(--font); cursor: pointer;
}
.tabs button[aria-current="true"] { color: var(--accent-ink); background: var(--accent); border-color: var(--accent); }

/* seus arquivos */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: center; }
@media (max-width: 860px) { .split { grid-template-columns: 1fr; gap: 32px; } }
.list { list-style: none; margin: 0; padding: 0; display: grid; gap: 18px; }
.list li { display: grid; grid-template-columns: 22px 1fr; gap: 12px; }
.list li svg { width: 18px; height: 18px; margin-top: 3px; color: var(--muted); }
.list b { display: block; font-weight: 600; }
.list span { color: var(--muted); font-size: 15px; }
.tree {
  border: 1px solid var(--line); border-radius: var(--r); background: var(--panel);
  padding: 20px 22px; font: 13px/1.9 var(--mono); color: var(--muted);
}
.tree b { color: var(--text); font-weight: 600; }
.tree .sync { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 14px; font-family: var(--font); }
.tree .sync span { border: 1px solid var(--line); border-radius: 999px; padding: 2px 10px; font-size: 12px; }

/* licença (resumo) */
.license-box {
  display: grid; grid-template-columns: 1fr auto; gap: 24px; align-items: center;
  border: 1px solid var(--line); border-radius: var(--r); background: var(--panel); padding: 28px 32px;
}
.license-box h3 { font-size: 20px; margin-bottom: 6px; }
@media (max-width: 700px) { .license-box { grid-template-columns: 1fr; } }

/* baixar */
.os { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
@media (max-width: 860px) { .os { grid-template-columns: 1fr; } }
.os .card { display: flex; flex-direction: column; gap: 6px; }
.os .card h3 { margin: 14px 0 0; }
.os .files { font-size: 13px; color: var(--subtle); margin: 4px 0 18px; }
.os .card .btn { margin-top: auto; align-self: flex-start; }
.os .versao { font-size: 12.5px; color: var(--subtle); margin-top: 8px; min-height: 1.6em; }
.os .alt-links { font-size: 13px; color: var(--muted); margin-top: 2px; }
.os .alt-links a { color: var(--text); }
.todos { margin-top: 16px; border: 1px solid var(--line); border-radius: var(--r); background: var(--panel); }
.todos summary { cursor: pointer; padding: 14px 18px; font-weight: 600; font-size: 15px; list-style: none; display: flex; align-items: center; gap: 10px; }
.todos summary::-webkit-details-marker { display: none; }
.todos summary::before { content: ""; width: 7px; height: 7px; border-right: 1.6px solid currentColor; border-bottom: 1.6px solid currentColor; transform: rotate(-45deg); transition: transform 0.15s; }
.todos[open] summary::before { transform: rotate(45deg); }
.todos-lista { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; padding: 4px 18px 8px; }
@media (max-width: 1000px) { .todos-lista { grid-template-columns: 1fr 1fr; } }
@media (max-width: 600px) { .todos-lista { grid-template-columns: 1fr; } }
.todos-grupo h4 { margin: 8px 0 8px; font-size: 13px; text-transform: uppercase; letter-spacing: 0.06em; color: var(--subtle); }
.todos-item { display: flex; justify-content: space-between; gap: 12px; padding: 10px 12px; margin: 0 -12px; border-radius: var(--r); text-decoration: none; }
.todos-item:hover { background: var(--panel-2); }
.todos-item b { display: block; font-weight: 600; font-size: 14px; }
.todos-item small { display: block; color: var(--muted); font-size: 13px; margin-top: 2px; }
.todos-tam { color: var(--subtle); font-size: 13px; white-space: nowrap; }
.todos-rodape { padding: 12px 18px 16px; border-top: 1px solid var(--line); font-size: 14px; margin: 0; }
.os .card.current { border-color: var(--text); }
.notice {
  display: flex; gap: 12px; align-items: flex-start;
  margin-top: 20px; padding: 14px 16px; border-radius: var(--r);
  border: 1px solid var(--line); background: var(--panel-2); font-size: 14px; color: var(--muted);
}
.notice svg { width: 18px; height: 18px; flex: none; margin-top: 2px; color: var(--brand); }

/* páginas internas */
.page { padding: 64px 0 96px; }
.page-head { margin-bottom: 40px; max-width: 720px; }
.page-head h1 { font-size: 46px; margin-bottom: 14px; }
@media (max-width: 700px) { .page-head h1 { font-size: 34px; } }
.page-head p { font-size: 18px; color: var(--muted); }
.side-layout { display: grid; grid-template-columns: 220px 1fr; gap: 56px; }
@media (max-width: 860px) { .side-layout { grid-template-columns: 1fr; gap: 24px; } }
.side { position: sticky; top: 84px; align-self: start; display: grid; gap: 2px; }
@media (max-width: 860px) { .side { position: static; display: flex; flex-wrap: wrap; gap: 6px; } }
.side .side-title { font: 600 12px var(--font); letter-spacing: 0.08em; text-transform: uppercase; color: var(--subtle); margin: 0 10px 8px; }
@media (max-width: 860px) { .side .side-title { display: none; } }
.side a {
  padding: 7px 10px; border-radius: var(--r); text-decoration: none; font-size: 14px; color: var(--muted);
  border-left: 2px solid transparent;
}
.side a:hover { color: var(--text); background: var(--panel-2); }
.side a[aria-current="page"] { color: var(--text); font-weight: 600; border-left-color: var(--brand); background: var(--panel-2); }
@media (max-width: 860px) { .side a { border: 1px solid var(--line); } }
.prose { max-width: 720px; }
.prose h2 { font-size: 24px; margin: 44px 0 12px; }
.prose h2:first-child { margin-top: 0; }
.prose h3 { font-size: 18px; margin: 28px 0 8px; }
.prose p, .prose li { color: var(--muted); }
.prose p + p { margin-top: 12px; }
.prose ul { padding-left: 20px; display: grid; gap: 6px; }
.prose strong { color: var(--text); }
.prose a { text-underline-offset: 3px; }
.prose code { font: 13px var(--mono); background: var(--panel-2); padding: 1px 5px; border-radius: 3px; }
.freedoms { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin: 20px 0; }
@media (max-width: 600px) { .freedoms { grid-template-columns: 1fr; } }
.freedoms div { border: 1px solid var(--line); border-radius: var(--r); padding: 16px 18px; background: var(--panel); }
.freedoms b { display: block; margin-bottom: 4px; }
.freedoms span { font-size: 14px; color: var(--muted); }
table.t { width: 100%; border-collapse: collapse; font-size: 14px; margin-top: 12px; }
table.t th, table.t td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--line); vertical-align: top; }
table.t th { font-weight: 600; color: var(--text); font-size: 13px; }
table.t td { color: var(--muted); }
.table-scroll { overflow-x: auto; }

/* roadmap */
.timeline { display: grid; gap: 0; max-width: 820px; }
.release { display: grid; grid-template-columns: 140px 1fr; gap: 28px; padding: 32px 0; border-top: 1px solid var(--line); }
.release:first-child { border-top: 0; padding-top: 0; }
@media (max-width: 700px) { .release { grid-template-columns: 1fr; gap: 10px; } }
.release .ver { font: 600 22px var(--font); letter-spacing: -0.02em; }
.release .when { font-size: 13px; color: var(--subtle); margin-top: 2px; }
.status { display: inline-block; margin-top: 10px; font: 600 11px var(--font); letter-spacing: 0.06em; text-transform: uppercase; padding: 3px 8px; border-radius: 3px; border: 1px solid var(--line-strong); color: var(--muted); }
.status.now { border-color: var(--brand); color: var(--brand); }
.release h3 { font-size: 19px; margin-bottom: 10px; }
.release ul { margin: 0; padding-left: 18px; display: grid; gap: 6px; color: var(--muted); font-size: 15px; }
.release ul b { color: var(--text); font-weight: 600; }

/* contribua */
.ways { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
@media (max-width: 700px) { .ways { grid-template-columns: 1fr; } }
.ways .card h3 { margin-top: 14px; }
.ways .card .btn { margin-top: 18px; }
.steps { counter-reset: s; list-style: none; padding: 0; display: grid; gap: 14px; }
.steps li { counter-increment: s; display: grid; grid-template-columns: 28px 1fr; gap: 12px; color: var(--muted); }
.steps li::before {
  content: counter(s); width: 24px; height: 24px; border-radius: 50%; display: grid; place-items: center;
  border: 1px solid var(--line-strong); font: 600 12px var(--font); color: var(--text);
}
pre.code { background: var(--panel-2); border: 1px solid var(--line); border-radius: var(--r); padding: 14px 16px; overflow-x: auto; font: 13px/1.6 var(--mono); margin: 12px 0; }

/* rodapé */
footer { border-top: 1px solid var(--line); padding: 56px 0 40px; font-size: 14px; }
.foot { display: grid; grid-template-columns: 1.4fr repeat(3, 1fr); gap: 32px; }
@media (max-width: 760px) { .foot { grid-template-columns: 1fr 1fr; } }
.foot h4 { font-size: 13px; margin: 0 0 12px; font-weight: 600; }
.foot a { display: block; color: var(--muted); text-decoration: none; padding: 3px 0; }
.foot a:hover { color: var(--text); }
.foot a.brand { display: inline-flex; color: var(--text); padding: 0; }
.foot p { color: var(--muted); margin-top: 12px; max-width: 280px; }
.copy { margin-top: 40px; padding-top: 20px; border-top: 1px solid var(--line); color: var(--subtle); font-size: 13px; display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; }

:focus-visible { outline: 2px solid var(--text); outline-offset: 2px; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }