:root {
  --bg: #0f1020; --panel: #1a1c33; --panel2: #23264a; --text: #eceefb; --muted: #9a9fc4;
  --accent: #8c9eff; --danger: #ff8a80; --radius: 14px;
}
@media (prefers-color-scheme: light) {
  :root { --bg: #f5f6fd; --panel: #ffffff; --panel2: #e8eaf8; --text: #1b1d36; --muted: #5d6290; --accent: #3f51b5; --danger: #c62828; }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--text); font: 16px/1.45 system-ui, sans-serif; }
#app { max-width: 760px; margin: 0 auto; padding: 16px; }
h1 { font-size: 1.4rem; margin: 0; }
h2 { font-size: 1.1rem; margin: 20px 0 8px; }
header { display: flex; align-items: center; gap: 12px; justify-content: space-between; margin-bottom: 12px; }
nav { display: flex; gap: 6px; flex-wrap: wrap; margin-bottom: 12px; }
button, .tab { font: inherit; color: var(--text); background: var(--panel2); border: 0; border-radius: 999px; padding: 8px 14px; cursor: pointer; }
button.primary, .tab.active { background: var(--accent); color: #0b0d24; font-weight: 600; }
button.link { background: none; color: var(--muted); padding: 4px 8px; }
button:disabled { opacity: .5; cursor: default; }
input[type=text], input[type=password], textarea {
  width: 100%; font: inherit; color: var(--text); background: var(--panel); border: 1px solid var(--panel2);
  border-radius: var(--radius); padding: 10px 12px;
}
textarea { resize: vertical; min-height: 70px; }
.card { background: var(--panel); border-radius: var(--radius); padding: 14px; margin-bottom: 10px; }
.row { display: flex; gap: 8px; align-items: center; }
.row > input { flex: 1; }
.item { display: flex; gap: 10px; align-items: flex-start; padding: 10px 0; border-bottom: 1px solid var(--panel2); }
.item:last-child { border-bottom: 0; }
.item .grow { flex: 1; min-width: 0; overflow-wrap: anywhere; }
.muted { color: var(--muted); font-size: .9rem; }
.badge { font-size: .75rem; background: var(--panel2); border-radius: 999px; padding: 2px 8px; color: var(--muted); }
.error { color: var(--danger); margin: 8px 0; }
.chat { display: flex; flex-direction: column; gap: 8px; margin-bottom: 12px; }
.msg { padding: 10px 12px; border-radius: var(--radius); white-space: pre-wrap; overflow-wrap: anywhere; max-width: 90%; }
.msg.user { background: var(--accent); color: #0b0d24; align-self: flex-end; }
.msg.assistant { background: var(--panel); align-self: flex-start; }
label.check { display: flex; gap: 8px; align-items: center; color: var(--muted); margin: 8px 0; }