/* Stripe E-Invoice Bridge (working name) – landing styles. No external fonts, no trackers.
   Contrast (on #ffffff, calculated): text #1a1a2e 17.1:1, muted #4a4a5e 8.6:1, link/button #0b4fb3 7.5:1. */
:root {
  --text: #1a1a2e;
  --muted: #4a4a5e;
  --bg: #ffffff;
  --band: #f1f4f9;
  --accent: #0b4fb3;
  --accent-dark: #083a85;
  --border: #c5cad6;
  --warn-bg: #fff6dc;
  --warn-border: #8a6100;
  --error: #a4161a;
}
*, *::before, *::after { box-sizing: border-box; }
html { font-size: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.6;
  hyphens: manual;
  overflow-wrap: break-word;
  color: var(--text);
  background: var(--bg);
}
.wrap { max-width: 60rem; margin: 0 auto; padding: 0 1.25rem; }
.narrow > * { max-width: 44rem; }
.nowrap { white-space: nowrap; }
a { color: var(--accent); text-underline-offset: 0.15em; }
a:hover { color: var(--accent-dark); }
:focus-visible { outline: 3px solid var(--accent); outline-offset: 3px; border-radius: 2px; }
.skip-link {
  position: absolute; left: 0.5rem; top: -4rem; z-index: 10;
  background: var(--text); color: #fff; padding: 0.6rem 1rem; border-radius: 0.25rem;
}
.skip-link:focus { top: 0.5rem; color: #fff; }
header.site { border-bottom: 1px solid var(--border); }
header.site .wrap { display: flex; flex-wrap: wrap; gap: 0.75rem 1.5rem; align-items: center; justify-content: space-between; padding-top: 0.9rem; padding-bottom: 0.9rem; }
.brand { font-weight: 700; color: var(--text); text-decoration: none; }
nav ul { list-style: none; display: flex; flex-wrap: wrap; gap: 0.5rem 1.25rem; margin: 0; padding: 0; }
.draft-banner { background: var(--warn-bg); border-bottom: 2px solid var(--warn-border); padding: 0.6rem 0; font-size: 0.95rem; }
h1 { font-size: clamp(1.9rem, 4.5vw, 2.8rem); line-height: 1.15; margin: 0 0 1rem; }
h2 { font-size: 1.6rem; line-height: 1.25; margin: 0 0 1rem; }
h3 { font-size: 1.15rem; margin: 1.25rem 0 0.4rem; }
section { padding: 2.75rem 0; }
section.band { background: var(--band); }
.lead { font-size: 1.2rem; color: var(--muted); max-width: 42rem; }
.btn, button {
  display: inline-block; font: inherit; font-weight: 700; cursor: pointer;
  background: var(--accent); color: #fff; border: 2px solid var(--accent);
  padding: 0.7rem 1.4rem; border-radius: 0.375rem; text-decoration: none; min-height: 2.75rem;
}
.btn:hover, button:hover { background: var(--accent-dark); border-color: var(--accent-dark); color: #fff; }
table { border-collapse: collapse; width: 100%; margin: 1rem 0; }
caption { text-align: left; font-weight: 700; padding-bottom: 0.5rem; }
th, td { text-align: left; vertical-align: top; padding: 0.6rem 0.75rem; border: 1px solid var(--border); }
th { background: var(--band); }
.table-scroll { overflow-x: auto; }
ol.steps { padding-left: 1.25rem; }
ol.steps li { margin-bottom: 0.6rem; }
.note { background: var(--warn-bg); border-left: 4px solid var(--warn-border); padding: 0.75rem 1rem; margin: 1.25rem 0; }
.small { font-size: 0.9rem; color: var(--muted); }
form.waitlist { background: #fff; border: 1px solid var(--border); border-radius: 0.5rem; padding: 1.5rem; max-width: 34rem; }
.field { margin-bottom: 1.1rem; }
label, legend { display: block; font-weight: 600; margin-bottom: 0.3rem; }
input[type="email"], select {
  width: 100%; max-width: 100%; min-width: 0; text-overflow: ellipsis; font: inherit; color: var(--text); background: #fff;
  padding: 0.65rem 0.75rem; border: 2px solid #5b6173; border-radius: 0.375rem; min-height: 2.75rem;
}
.check { display: flex; gap: 0.6rem; align-items: flex-start; }
.check input { width: 1.5rem; height: 1.5rem; margin-top: 0.3rem; flex: none; }
.check label { font-weight: 400; margin: 0; }
fieldset.field { border: 0; padding: 0; margin: 0 0 1.1rem; min-width: 0; }
.optional { font-weight: 400; color: var(--muted); }
.choices { display: flex; flex-direction: column; gap: 0.35rem; }
.choices.inline { flex-direction: row; flex-wrap: wrap; gap: 0.35rem 1.5rem; }
.choice { display: flex; gap: 0.5rem; align-items: center; min-height: 2.75rem; }
.choice input { width: 1.5rem; height: 1.5rem; margin: 0; flex: none; }
.choice label { font-weight: 400; margin: 0; }
/* Server-side errors (functions/_lib/form-render.ts). #a4161a on #fff: 7.7:1, on #f1f4f9 band: 7.0:1 (calculated). */
.form-errors { border: 3px solid var(--error); border-radius: 0.375rem; padding: 0.75rem 1rem; margin-bottom: 1.25rem; }
.form-errors h3 { margin-top: 0; color: var(--error); }
.form-errors ul { margin: 0; padding-left: 1.25rem; }
.form-errors a { color: var(--error); font-weight: 600; }
.field-error { color: var(--error); font-weight: 600; margin: 0 0 0.35rem; }
[aria-invalid="true"] { border-color: var(--error) !important; border-width: 3px !important; }
.cf-turnstile { min-height: 140px; }
.hp { position: absolute; left: -10000px; width: 1px; height: 1px; overflow: hidden; }
details { border: 1px solid var(--border); border-radius: 0.375rem; padding: 0.6rem 1rem; margin-bottom: 0.6rem; background: #fff; }
summary { cursor: pointer; font-weight: 600; }
footer.site { border-top: 1px solid var(--border); padding: 2rem 0; font-size: 0.92rem; color: var(--muted); background: var(--band); }
footer.site ul { list-style: none; display: flex; flex-wrap: wrap; gap: 0.5rem 1.25rem; margin: 0 0 1rem; padding: 0; }
code { background: var(--band); padding: 0.1rem 0.3rem; border-radius: 0.2rem; }

@media (max-width: 400px) {
  form.waitlist { padding: 1rem; }
  nav a, footer.site a { display: inline-block; padding: 0.55rem 0; }
}