:root {
  color-scheme: dark light;
  --bg: #0f1115; --panel: #181b22; --text: #e8eaee; --muted: #9aa1ad;
  --me: #2d5bff; --bot: #232733; --warn: #b3261e; --line: #2a2f3a;
}
@media (prefers-color-scheme: light) {
  :root { --bg: #f6f7f9; --panel: #fff; --text: #14161a; --muted: #5d6572; --bot: #e9ecf1; --line: #d9dde4; }
}
* { box-sizing: border-box; }
html, body { height: 100%; margin: 0; }
body {
  background: var(--bg); color: var(--text);
  font: 16px/1.4 system-ui, -apple-system, "Segoe UI", sans-serif;
  display: flex; flex-direction: column;
  padding: env(safe-area-inset-top) env(safe-area-inset-right) env(safe-area-inset-bottom) env(safe-area-inset-left);
}
[hidden] { display: none !important; }
.banner { background: var(--warn); color: #fff; text-align: center; font-weight: 700; padding: 6px 12px; letter-spacing: .04em; }
main { flex: 1; min-height: 0; display: flex; flex-direction: column; }
#login { justify-content: center; align-items: center; padding: 16px; }
#login-form { width: 100%; max-width: 360px; display: grid; gap: 12px; }
h1 { margin: 0 0 8px; font-size: 1.6rem; }
input, textarea, button { font: inherit; }
input, textarea { background: var(--panel); color: var(--text); border: 1px solid var(--line); border-radius: 12px; padding: 12px; width: 100%; }
button { background: var(--me); color: #fff; border: 0; border-radius: 12px; padding: 12px 18px; font-weight: 600; }
button.link { background: none; color: var(--muted); padding: 4px 8px; font-weight: 400; }
button.secondary { background: var(--bot); color: var(--text); }
.error { color: #ff6b61; min-height: 1.2em; margin: 0; }
header { display: flex; justify-content: space-between; align-items: center; padding: 10px 16px; border-bottom: 1px solid var(--line); font-weight: 600; }
#messages { flex: 1; overflow-y: auto; list-style: none; margin: 0; padding: 16px; display: flex; flex-direction: column; gap: 10px; }
.msg { max-width: 85%; padding: 10px 14px; border-radius: 16px; white-space: pre-wrap; overflow-wrap: anywhere; }
.msg.user { align-self: flex-end; background: var(--me); color: #fff; border-bottom-right-radius: 4px; }
.msg.bot { align-self: flex-start; background: var(--bot); border-bottom-left-radius: 4px; }
.msg.note { align-self: center; color: var(--muted); font-size: .85rem; text-align: center; }
.meta { display: block; color: var(--muted); font-size: .75rem; margin-top: 4px; }
.actions { display: flex; gap: 8px; margin-top: 8px; }
#chat-form { display: flex; gap: 8px; padding: 10px 12px; border-top: 1px solid var(--line); background: var(--panel); }
#input { resize: none; max-height: 40vh; }
#memory-body { flex: 1; overflow-y: auto; padding: 12px 16px 24px; }
h2 { font-size: 1rem; margin: 18px 0 8px; color: var(--muted); font-weight: 600; }
.cards { list-style: none; margin: 8px 0 0; padding: 0; display: grid; gap: 10px; }
.card { background: var(--panel); border: 1px solid var(--line); border-radius: 12px; padding: 12px; }
.card-text { margin: 0 0 8px; overflow-wrap: anywhere; }
.chips { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 8px; }
.chip { font-size: .72rem; padding: 2px 8px; border-radius: 999px; background: var(--bot); color: var(--muted); }
.chip.private { background: var(--warn); color: #fff; }
.chip.check { display: inline-flex; align-items: center; gap: 4px; }
.chip.check input { width: auto; padding: 0; }
.actions.wrap { flex-wrap: wrap; }
.actions button, .card button { padding: 8px 12px; font-size: .9rem; }
.edit { display: grid; gap: 8px; }
.note-line { color: var(--muted); font-size: .85rem; min-height: 1.2em; margin: 4px 0; }
button.primary { background: var(--me); color: #fff; }
.preview { text-align: left; white-space: pre-wrap; overflow-wrap: anywhere; max-height: 40vh; overflow-y: auto;
  background: var(--panel); border: 1px solid var(--line); border-radius: 10px; padding: 10px; margin: 8px 0 0;
  font: 12px/1.4 ui-monospace, SFMono-Regular, Menlo, monospace; color: var(--text); }