/* Carga public site. System fonts only, no external resources. */
:root {
  color-scheme: light dark;
  --bg: #ffffff;
  --bg-alt: #f4f6f5;
  --text: #1d1d1f;
  --muted: #5b6360;
  --border: #d7dcd9;
  --accent: #0a7d3c;       /* app green; 5.1:1 on white */
  --accent-strong: #08662f;
  --on-accent: #ffffff;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #101412;
    --bg-alt: #1a201d;
    --text: #f2f5f3;
    --muted: #a5afaa;
    --border: #2d3631;
    --accent: #4cd17e;     /* 8.9:1 on --bg */
    --accent-strong: #7be0a1;
    --on-accent: #06210f;
  }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 17px/1.55 -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}
a { color: var(--accent); text-underline-offset: 2px; }
a:hover { color: var(--accent-strong); }
a:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; border-radius: 4px; }
.wrap { max-width: 44rem; margin: 0 auto; padding: 0 1rem; }
header.site { border-bottom: 1px solid var(--border); }
header.site .wrap { display: flex; align-items: center; justify-content: space-between; gap: 1rem; min-height: 3.5rem; }
.brand { font-weight: 700; font-size: 1.15rem; color: var(--text); text-decoration: none; }
.brand::before { content: ""; display: inline-block; width: .65rem; height: .65rem; margin-right: .5rem; border-radius: 50%; background: var(--accent); }
nav.lang a { padding: .25rem .6rem; border: 1px solid var(--border); border-radius: 999px; text-decoration: none; font-size: .9rem; color: var(--text); }
nav.lang a:hover { border-color: var(--accent); }
main { padding: 2rem 0 3rem; }
h1 { font-size: 2rem; line-height: 1.2; margin: 0 0 .75rem; letter-spacing: -.01em; }
h2 { font-size: 1.3rem; line-height: 1.3; margin: 2.25rem 0 .5rem; }
h3 { font-size: 1.05rem; margin: 1.5rem 0 .25rem; }
p, ul, ol, dl { margin: .6rem 0; }
li { margin: .25rem 0; }
.meta { color: var(--muted); font-size: .95rem; }
.hero { padding: 1rem 0 .5rem; }
.hero h1 { font-size: 2.6rem; }
.lead { font-size: 1.2rem; color: var(--muted); max-width: 36rem; }
.cta { margin: 1.5rem 0; padding: 1rem 1.25rem; border: 1px dashed var(--border); border-radius: 14px; background: var(--bg-alt); }
.btn { display: inline-block; padding: .65rem 1.2rem; border-radius: 12px; background: var(--accent); color: var(--on-accent); font-weight: 600; text-decoration: none; }
.btn:hover { background: var(--accent-strong); color: var(--on-accent); }
.btn[aria-disabled="true"] { opacity: .75; cursor: default; }
.features { display: grid; gap: 1rem; margin: 1.5rem 0; padding: 0; list-style: none; }
.features li { margin: 0; padding: 1rem 1.1rem; border: 1px solid var(--border); border-radius: 14px; background: var(--bg-alt); }
.features h2 { margin: 0 0 .25rem; font-size: 1.1rem; }
.features p { margin: 0; color: var(--muted); }
table { width: 100%; border-collapse: collapse; margin: 1rem 0; font-size: .95rem; }
th, td { text-align: left; vertical-align: top; padding: .55rem .6rem; border-bottom: 1px solid var(--border); }
th { background: var(--bg-alt); }
.table-scroll { overflow-x: auto; }
details { border-bottom: 1px solid var(--border); padding: .6rem 0; }
summary { cursor: pointer; font-weight: 600; }
summary:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; }
details p { margin: .5rem 0 0; }
.todo { background: var(--bg-alt); border: 1px dashed var(--border); border-radius: 4px; padding: 0 .3rem; font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: .9em; }
footer.site { border-top: 1px solid var(--border); padding: 1.5rem 0 2.5rem; color: var(--muted); font-size: .92rem; }
footer.site ul { list-style: none; padding: 0; display: flex; flex-wrap: wrap; gap: .4rem 1.1rem; }
@media (min-width: 40rem) {
  .features { grid-template-columns: 1fr 1fr; }
  body { font-size: 18px; }
}
.skip { position: absolute; left: -9999px; top: 0; padding: .5rem 1rem; background: var(--accent); color: var(--on-accent); z-index: 10; }
.skip:focus { left: 0; }