:root { font-family: system-ui, sans-serif; }
body { margin: 0; background: #0f1115; color: #e6e6e6; }
main { max-width: 640px; margin: 0 auto; padding: 1rem; }
h1 { font-size: 1.4rem; }
form { display: flex; flex-direction: column; gap: .6rem; margin-block: 1rem; }
label { display: flex; flex-direction: column; gap: .2rem; font-size: .9rem; }
input, button { padding: .5rem; font-size: 1rem; border-radius: .4rem; border: 1px solid #333; }
input { background: #1b1e26; color: #e6e6e6; }
button { background: #2d6cdf; color: #fff; border: none; cursor: pointer; }
button:hover { background: #3a78ec; }
.error { color: #ff6b6b; min-height: 1.2em; }
.warn { color: #e0a33e; min-height: 1.2em; font-size: .85rem; }
#messages { list-style: none; padding: 0; height: 60vh; overflow-y: auto;
  border: 1px solid #333; border-radius: .4rem; }
#messages li { padding: .35rem .6rem; border-bottom: 1px solid #20232b; word-break: break-word; }
#messages time { color: #888; font-size: .8rem; font-family: ui-monospace, monospace; }
#send-form { flex-direction: row; }
#send-form input { flex: 1; }
#share { border: 1px solid #333; border-radius: .4rem; padding: .5rem .75rem;
  margin-bottom: .75rem; font-size: .85rem; }
#share summary { cursor: pointer; color: #9fb4d8; }
#share label { margin-top: .5rem; }
#share input { font-family: ui-monospace, monospace; }
#share button { margin-top: .35rem; align-self: flex-start; padding: .3rem .6rem;
  font-size: .85rem; }
footer { margin-top: 1.5rem; padding-top: 1rem; border-top: 1px solid #20232b;
  display: flex; align-items: center; gap: .6rem; flex-wrap: wrap; }
#wipe-local { background: #3a2330; color: #ff9a9a; border: 1px solid #5a2a3a;
  padding: .3rem .6rem; font-size: .85rem; }
#wipe-local:hover { background: #4a2a3c; }
.hint { color: #888; font-size: .75rem; }
.intro { color: #c4c9d4; font-size: .95rem; line-height: 1.5; margin: .5rem 0 1.25rem; }
.chat-top { display: flex; justify-content: flex-end; margin-bottom: .6rem; }
#new-chat { padding: .3rem .6rem; font-size: .85rem; }