body {
  margin: 0;
  background: #f5f7fa;
  color: #182230;
  font-family: system-ui, sans-serif;
}
main { max-width: 640px; margin: 0 auto; padding: 24px; }
form { display: grid; gap: 16px; }
label { display: grid; gap: 6px; }
input, button { box-sizing: border-box; width: 100%; padding: 12px; font: inherit; }
button { background: #175cd3; color: white; border: 0; cursor: pointer; }
button:disabled { opacity: 0.6; cursor: wait; }
li { margin-bottom: 12px; overflow-wrap: anywhere; }
a { color: #175cd3; }
#message { min-height: 1.5em; }