/* /sign-up/ pages — DESIGN.md: white/ink-50 surfaces, pill buttons, the
   signal gradient as an accent only, visible focus ring (WCAG 2.1 AA).
   Primary buttons use green-800 so white text clears 4.5:1. */
*, *::before, *::after { box-sizing: border-box; }
body { margin: 0; background: var(--surface-sunken); color: var(--text-body); font: 16px/1.5 var(--font-sans); }
a { color: var(--text-link); }
a:hover { color: var(--green-900); }
:focus-visible { outline: none; box-shadow: var(--ring-focus); border-radius: 6px; }
.skip { position: absolute; left: -10000px; }
.skip:focus { left: 16px; top: 16px; background: var(--white); padding: 8px 12px; }
.top { display: flex; justify-content: space-between; align-items: center; max-width: 560px; margin: 0 auto; padding: 20px 16px 0; }
.brand { display: inline-flex; align-items: center; gap: 10px; color: var(--text-strong); font: 800 18px/1 var(--font-display); text-decoration: none; }
.brand-mark { width: 28px; height: 28px; border-radius: 8px; background: var(--signal-gradient); }
.langs { display: flex; gap: 6px; font-size: 14px; }
.langs a, .langs span { padding: 4px 8px; border-radius: var(--radius-pill); text-decoration: none; }
.langs span { background: var(--white); color: var(--text-strong); font-weight: 700; border: 1px solid var(--border-default); }
main { max-width: 560px; margin: 0 auto; padding: 24px 16px 64px; }
.card { background: var(--white); border: 1px solid var(--ink-150); border-radius: var(--radius-lg); box-shadow: var(--shadow-md); padding: 32px 28px; }
@media (max-width: 480px) { .card { padding: 24px 18px; } }
h1 { margin: 0 0 8px; color: var(--text-strong); font: 800 30px/1.15 var(--font-display); letter-spacing: -.015em; }
.lead { margin: 0 0 24px; }
.note { margin: 20px 0 0; font-size: 14px; color: var(--ink-500); }
.field { margin: 0 0 16px; }
label { display: block; margin: 0 0 6px; color: var(--text-strong); font-weight: 700; font-size: 14px; }
.help { margin: 4px 0 0; font-size: 13px; color: var(--ink-500); }
input[type=text], input[type=email], input[type=password] {
  width: 100%; padding: 11px 14px; border: 1px solid var(--border-default); border-radius: var(--radius-md);
  font: inherit; color: var(--text-strong); background: var(--white);
}
input:focus-visible { border-color: var(--green-600); }
.check { display: flex; gap: 10px; align-items: flex-start; font-weight: 400; color: var(--text-body); }
.check input { margin-top: 4px; width: 18px; height: 18px; accent-color: var(--green-800); }
.errors { margin: 6px 0 0; padding: 0; list-style: none; color: var(--danger-ink); font-size: 14px; font-weight: 600; }
.alert { margin: 0 0 16px; padding: 12px 14px; border-radius: var(--radius-md); background: var(--danger-soft); color: var(--danger-ink); border: 1px solid var(--danger-line); font-weight: 600; }
.btn {
  display: inline-flex; justify-content: center; align-items: center; gap: 8px; width: 100%; padding: 12px 20px;
  border-radius: var(--radius-pill); border: 1px solid transparent; font: 700 16px/1.2 var(--font-sans);
  cursor: pointer; text-decoration: none;
}
.btn-primary { background: var(--green-800); color: var(--white); }
.btn-primary:hover { background: var(--green-900); color: var(--white); }
.btn-secondary { background: var(--white); color: var(--text-strong); border-color: var(--border-default); }
.btn-secondary:hover { border-color: var(--ink-400); color: var(--text-strong); }
.or { display: flex; align-items: center; gap: 12px; margin: 20px 0; color: var(--ink-500); font-size: 14px; }
.or::before, .or::after { content: ""; flex: 1; height: 1px; background: var(--ink-150); }
.foot { margin: 20px 0 0; text-align: center; font-size: 14px; }
.cf-turnstile { margin: 0 0 16px; }