:root {
  color-scheme: light dark;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: #eef3f7;
  color: #152536;
}

* { box-sizing: border-box; }
body { margin: 0; min-height: 100vh; }
main { min-height: 100vh; display: grid; place-items: center; padding: 1.25rem; }
.card { width: min(34rem, 100%); padding: 2rem; background: #fff; border-radius: 1rem; box-shadow: 0 1rem 3rem rgb(17 42 67 / 14%); }
.logo { width: 4rem; height: 4rem; }
h1 { margin: .75rem 0; font-size: 1.75rem; }
.intro { line-height: 1.55; }
label { display: block; margin: 1.5rem 0 .45rem; font-weight: 650; }
input { width: 100%; padding: .8rem; border: 1px solid #9aabba; border-radius: .5rem; font: inherit; }
.buttons { display: grid; gap: .65rem; margin: 1rem 0; }
button { padding: .85rem 1rem; border: 0; border-radius: .5rem; background: #176b87; color: white; font: inherit; font-weight: 650; cursor: pointer; }
button.secondary { background: #e3e9ee; color: #243746; }
button:disabled { opacity: .55; cursor: wait; }
output { display: block; min-height: 3rem; padding: .8rem; border-radius: .5rem; background: #eef3f7; }
output.success { background: #dff4e7; color: #12552d; }
output.error { background: #fde5e3; color: #81251f; }
.notice { padding: .8rem; border-left: .3rem solid #cc8b00; background: #fff3cd; color: #533b00; line-height: 1.45; }
.hidden { display: none; }
.privacy { margin: 1.25rem 0 0; font-size: .85rem; color: #526575; line-height: 1.45; }

@media (prefers-color-scheme: dark) {
  :root { background: #101820; color: #e9f0f5; }
  .card { background: #182630; box-shadow: none; }
  input, output { background: #101820; color: #e9f0f5; }
  button.secondary { background: #334653; color: #fff; }
  .privacy { color: #b9c6cf; }
}