:root {
  color-scheme: light;
  --brand: #006EDB;
  --text: #122033;
  --muted: #46586D;
  --border: #D7E3EF;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--text);
  background: #F6F9FC;
  font-size: 18px;
  line-height: 1.65;
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
body { margin: 0; background: linear-gradient(#FFFFFF, #F6F9FC 600px); }
.page { max-width: 640px; margin: 0 auto; padding: 24px; }
header { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding-bottom: 36px; }
.brand { color: var(--text); font-weight: 800; text-decoration: none; letter-spacing: -0.025em; }
header nav { display: flex; gap: 20px; font-size: 0.9rem; }
main { min-height: 50vh; padding: 12px 0 32px; }
a { color: var(--brand); text-underline-offset: 0.2em; }
a:hover { text-decoration-thickness: 2px; }
a:focus-visible, button:focus-visible, input:focus-visible { outline: 3px solid var(--brand); outline-offset: 4px; }
.skip-link { position: absolute; left: 16px; top: -100px; background: white; padding: 10px; }
.skip-link:focus { top: 8px; z-index: 1; }
h1, h2 { line-height: 1.15; letter-spacing: -0.035em; }
h1 { font-size: clamp(2rem, 7vw, 3rem); margin: 0 0 20px; }
h2 { font-size: 1.3rem; margin: 0 0 12px; }
p { margin: 0 0 20px; }
.eyebrow { color: var(--brand); font-size: 0.8rem; font-weight: 750; letter-spacing: 0.12em; text-transform: uppercase; margin-bottom: 12px; }
.tagline { font-size: 1.3rem; font-weight: 650; margin-bottom: 28px; }
.actions { display: flex; flex-wrap: wrap; gap: 12px; margin: 24px 0 16px; }
.button, button { display: inline-flex; align-items: center; justify-content: center; min-height: 48px; border: 1px solid var(--brand); border-radius: 12px; padding: 12px 20px; background: var(--brand); color: #FFFFFF; font: inherit; font-weight: 650; cursor: pointer; text-decoration: none; }
.button:hover, button:hover { background: #005EB8; }
.button.secondary { background: white; color: var(--brand); }
.platform-note, .small { color: var(--muted); font-size: 0.9rem; }
.features, .answers, .policy { margin-top: 36px; }
section { padding: 24px 0; border-top: 1px solid var(--border); }
section p:last-child { margin-bottom: 0; }
.invite-box { padding: 24px; border: 1px solid var(--border); border-radius: 16px; background: #FFFFFF; margin: 24px 0; }
.invite-box label { display: block; color: var(--muted); font-size: 0.85rem; margin-bottom: 8px; }
.invite-code { display: block; width: 100%; min-width: 0; border: 0; padding: 8px 0; color: var(--text); background: transparent; font: 750 clamp(1.6rem, 6vw, 2.3rem) ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; letter-spacing: 0.08em; }
.invite-box button { margin-top: 16px; }
[data-role="copy-status"] { margin-top: 12px; margin-bottom: 0; }
footer { border-top: 1px solid var(--border); padding: 24px 0 16px; color: var(--muted); font-size: 0.85rem; }
footer a { display: inline-block; padding: 6px 0; overflow-wrap: anywhere; }
@media (max-width: 380px) {
  .page { padding: 20px; }
  header { align-items: flex-start; flex-direction: column; gap: 8px; }
  .invite-box { padding: 16px; }
}