/* System fonts only, no external resources. Palette checked for WCAG 2.1 AA contrast. */
:root {
  --text: #1b1f24;        /* on #fff: 16:1 */
  --muted: #4a5562;       /* on #fff: 7.6:1 */
  --bg: #ffffff;
  --alt: #f3f5f8;
  --line: #c3cad4;
  --link: #0a4a9e;        /* on #fff: 8.45:1 */
  --accent: #0a3d82;      /* button bg; white text 10:1 */
  --warn-bg: #fff4d6;
  --warn-text: #5a3b00;   /* on warn-bg: 8:1 */
}
* { box-sizing: border-box; }
html { font-size: 100%; scroll-behavior: auto; }
body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.6;
  color: var(--text);
  background: var(--bg);
}
.wrap { max-width: 62rem; margin: 0 auto; padding: 0 1.25rem; }
a { color: var(--link); text-underline-offset: 0.15em; }
a:hover { text-decoration-thickness: 2px; }
:focus-visible { outline: 3px solid #b45f00; outline-offset: 3px; }
.skip { position: absolute; left: -999px; top: 0; background: #fff; color: var(--text); padding: 0.75rem 1rem; z-index: 10; }
.skip:focus { left: 0.5rem; top: 0.5rem; }
header.site { border-bottom: 1px solid var(--line); padding: 0.75rem 0; }
header.site .wrap { display: flex; flex-wrap: wrap; gap: 0.75rem 1.5rem; align-items: center; justify-content: space-between; }
.brand { font-weight: 700; font-size: 1.1rem; }
nav ul { list-style: none; display: flex; flex-wrap: wrap; gap: 0.25rem 1.25rem; margin: 0; padding: 0; }
nav a { display: inline-block; padding: 0.35rem 0; }
h1 { font-size: clamp(1.9rem, 4vw, 2.75rem); line-height: 1.15; margin: 0 0 1rem; }
h2 { font-size: 1.6rem; line-height: 1.25; margin: 0 0 1rem; }
h3 { font-size: 1.2rem; line-height: 1.3; margin: 1.5rem 0 0.5rem; }
section { padding: 3rem 0; }
section.alt { background: var(--alt); }
.lead { font-size: 1.15rem; max-width: 46rem; }
.badge { display: inline-block; background: var(--warn-bg); color: var(--warn-text); border: 1px solid #b8860b; border-radius: 0.25rem; padding: 0.1rem 0.5rem; font-size: 0.85rem; font-weight: 600; }
.note { background: var(--warn-bg); color: var(--warn-text); border-left: 4px solid #b8860b; padding: 0.75rem 1rem; margin: 1rem 0; }
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(17rem, 1fr)); gap: 1.25rem; padding: 0; list-style: none; margin: 1.5rem 0 0; }
.card { background: var(--bg); border: 1px solid var(--line); border-radius: 0.5rem; padding: 1.25rem; }
.card h3 { margin-top: 0; }
.card.primary { border: 2px solid var(--accent); }
pre { background: #10151c; color: #e8edf3; padding: 1rem; border-radius: 0.375rem; overflow-x: auto; font-size: 0.875rem; line-height: 1.5; }
code { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; }
:not(pre) > code { background: var(--alt); padding: 0.05rem 0.3rem; border-radius: 0.2rem; font-size: 0.9em; }
.tablewrap { overflow-x: auto; }
table { border-collapse: collapse; width: 100%; }
caption { text-align: left; font-weight: 600; padding-bottom: 0.5rem; }
th, td { border: 1px solid var(--line); padding: 0.5rem 0.75rem; text-align: left; vertical-align: top; }
th { background: var(--alt); }
section.alt th { background: #e6eaf0; }
form.waitlist { max-width: 30rem; }
label { display: block; font-weight: 600; margin-bottom: 0.25rem; }
input[type="email"] { width: 100%; padding: 0.6rem 0.75rem; font: inherit; border: 2px solid #5b6572; border-radius: 0.25rem; background: #e9ecf0; color: #3d4651; }
button { font: inherit; font-weight: 600; margin-top: 0.75rem; padding: 0.6rem 1.25rem; border-radius: 0.25rem; border: 2px solid #5b6572; background: #e9ecf0; color: #3d4651; }
footer { border-top: 1px solid var(--line); padding: 2rem 0; color: var(--muted); font-size: 0.95rem; }
.small { font-size: 0.9rem; color: var(--muted); }
dl.faq dt { font-weight: 700; margin-top: 1.5rem; }
dl.faq dd { margin: 0.25rem 0 0; }
@media (max-width: 40rem) { section { padding: 2rem 0; } }
@media print { header nav, .skip { display: none; } }

/* UI review 2026-10-04 fixes */
:not(pre) > code { overflow-wrap: anywhere; }
section.alt :not(pre) > code { background: #e3e8ef; }
.eyebrow { font-weight: 600; color: var(--muted); margin: 0 0 0.5rem; }
.hero-grid { display: grid; grid-template-columns: 1fr; gap: 1rem; margin: 1.5rem 0; }
.hero-grid > * { min-width: 0; }
@media (min-width: 60rem) { .hero-grid { grid-template-columns: 1fr 1.4fr; } }
.actions { display: flex; flex-wrap: wrap; gap: 0.75rem 1.5rem; align-items: center; margin: 1.25rem 0; }
.btn { display: inline-block; background: var(--accent); color: #fff; font-weight: 700; padding: 0.7rem 1.4rem; border-radius: 0.3rem; text-decoration: none; }
.btn:hover { background: #072d63; }
.code-label { font-weight: 600; margin: 1rem 0 0.25rem; font-size: 0.95rem; }
.hero-grid .code-label { margin-top: 0; }
pre { margin: 0 0 1rem; }
.tablewrap:focus-visible, pre:focus-visible { outline-offset: 2px; }
table { min-width: 0; }

.brand .tag { font-weight: 400; color: var(--muted); }