:root {
  --sky: #fff1df;
  --sky-deep: #ffe4be;
  --ink: #0a2452;
  --ink-soft: #344d7c;
  --accent: #174fb6;
  --accent-dark: #113983;
  --secondary-hover: #eff3fa;
  --tertiary-bg: #fff8ef;
  --tertiary-hover: #fff1df;
  --tertiary-border: #ad8a5a;
  --divider: #ffe7c5;
  --help-border: #ffecd1;
  --logo-h: 72px;
}
/* Brand tokens (--sky … --help-border, --logo-h) are emitted above this file by renderCss in lib/render.mjs. */
:root {
  --card: #ffffff;
  --radius: 14px;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: linear-gradient(180deg, var(--sky) 0%, var(--sky-deep) 100%);
  color: var(--ink);
  display: flex;
  flex-direction: column;
  align-items: center;
  min-height: 100vh;
  padding: 24px;
}
.skip-link {
  position: absolute; left: -9999px; top: 0;
  background: var(--ink); color: #fff; padding: 10px 16px; border-radius: 0 0 8px 0;
}
.skip-link:focus { left: 0; }
.visually-hidden {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}

/* ---- Logo strip ---- */
.brand-strip {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  margin-top: auto;
  margin-bottom: 36px;
}
.brand {
  display: flex;
  align-items: center;
  padding: 6px 26px;
  border-left: 1.5px solid var(--ink);
}
.brand:first-child { border-left: none; }
.brand-logo { display: block; height: var(--logo-h); width: auto; }
.brand-link { display: block; transition: opacity .15s ease; }
.brand-link:hover { opacity: .65; }
.brand-link:focus-visible { outline: 3px solid var(--accent-dark); outline-offset: 4px; border-radius: 4px; }

/* ---- Card ---- */
main.card {
  background: var(--card);
  border-radius: var(--radius);
  box-shadow: 0 12px 40px rgba(14, 60, 90, .18);
  padding: 48px 44px 40px;
  width: 100%;
  max-width: 460px;
  text-align: center;
}
main.card:focus { outline: none; }
h1 { font-size: 26px; font-weight: 700; margin-bottom: 8px; }
p.sub { color: var(--ink-soft); font-size: 15px; margin-bottom: 32px; }

.login-btn {
  width: 100%;
  min-height: 56px;
  padding: 0 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 2px solid transparent;
  margin-bottom: 14px;
  font-size: 17px;
  font-weight: 600;
  line-height: 1.2;
  text-decoration: none;
  border-radius: 10px;
  transition: background .15s ease, transform .1s ease, box-shadow .15s ease;
}
.login-btn:focus-visible { outline: 3px solid var(--accent-dark); outline-offset: 2px; }
.login-btn.primary { background: var(--accent); color: #fff; border-color: var(--accent); }
.login-btn.primary:hover { background: var(--accent-dark); border-color: var(--accent-dark); transform: translateY(-1px); box-shadow: 0 6px 16px rgba(14, 107, 168, .35); }
.login-btn.secondary { background: #fff; color: var(--accent); border: 2px solid var(--accent); }
.login-btn.secondary:hover { background: var(--secondary-hover); transform: translateY(-1px); }
.login-btn.tertiary { background: var(--tertiary-bg); color: var(--ink-soft); border: 2px dashed var(--tertiary-border); }
.login-btn.tertiary:hover { background: var(--tertiary-hover); color: var(--ink); }

.pilot-divider { display: flex; align-items: center; gap: 12px; margin: 22px 0 16px; color: var(--ink-soft); font-size: 12.5px; }
.pilot-divider::before, .pilot-divider::after { content: ""; flex: 1; border-top: 1px solid var(--divider); }
.tertiary-note { font-size: 12.5px; color: var(--ink-soft); margin-top: -4px; }

.help {
  margin-top: 24px;
  font-size: 13.5px;
  color: var(--ink-soft);
  border-top: 1px solid var(--help-border);
  padding-top: 16px;
  text-align: left;
}
.help p { margin: 0 0 6px; }
.help .help-title { font-size: inherit; font-weight: 600; color: var(--ink); margin-bottom: 8px; }
.help a { color: var(--accent-dark); font-weight: 600; }
.help a:focus-visible { outline: 3px solid var(--accent-dark); outline-offset: 2px; border-radius: 2px; }
.help .help-note { font-size: 12.5px; }

footer {
  margin-top: 32px;
  margin-bottom: auto;
  font-size: 12.5px;
  color: var(--ink-soft);
  text-align: center;
}

@media (max-width: 560px) {
  .brand { padding: 4px 14px; }
  .brand-logo { height: calc(var(--logo-h) * .75); }
  main.card { padding: 36px 24px 32px; }
  h1 { font-size: 22px; }
}

@media (prefers-reduced-motion: reduce) {
  .brand-link, .login-btn { transition: none; }
  .login-btn:hover, .login-btn.primary:hover, .login-btn.secondary:hover { transform: none; }
}