:root {
  --bg: #f5f7f6; --surface: #ffffff; --text: #17201b; --muted: #6b7570;
  --border: #e2e7e4; --brand: #128c4a; --brand-dark: #0d6e3a; --danger: #b42318; --danger-bg: #fdecea;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #0f1412; --surface: #171e1b; --text: #e7ece9; --muted: #95a19b; --border: #26302b; --brand: #2fbf71; --brand-dark: #25a05e; --danger: #ff8a80; --danger-bg: #3a1d1b; }
}
* { box-sizing: border-box; }
body { margin: 0; font: 15px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; background: var(--bg); color: var(--text); }
a { color: var(--brand); text-decoration: none; }
a:hover { text-decoration: underline; }
h1 { font-size: 1.5rem; margin: 0 0 1rem; }
.muted { color: var(--muted); font-weight: normal; }
.topbar { display: flex; align-items: center; gap: 1.5rem; padding: .75rem 1.25rem; background: var(--surface); border-bottom: 1px solid var(--border); flex-wrap: wrap; }
.brand { font-weight: 700; font-size: 1.1rem; color: var(--text); }
.brand span { color: var(--brand); }
.topbar nav { display: flex; gap: 1rem; flex: 1; }
.topbar nav a { color: var(--muted); padding: .25rem 0; }
.topbar nav a.active { color: var(--text); border-bottom: 2px solid var(--brand); }
.who { display: flex; align-items: center; gap: .75rem; color: var(--muted); }
.who form { margin: 0; }
.link { background: none; border: 0; color: var(--brand); cursor: pointer; font: inherit; padding: 0; }
.container { max-width: 1100px; margin: 0 auto; padding: 1.5rem 16px; }
.footer { text-align: center; color: var(--muted); font-size: .85rem; padding: 2rem 16px; }
.auth-card { max-width: 400px; margin: 3rem auto; background: var(--surface); border: 1px solid var(--border); border-radius: 12px; padding: 2rem; }
.auth-card form { display: grid; gap: .5rem; margin-top: 1rem; }
label { font-size: .9rem; font-weight: 600; }
label.check { font-weight: normal; display: flex; gap: .5rem; align-items: center; margin: .25rem 0 .5rem; }
input[type=text], input[type=password], input[type=search], input[type=email] { width: 100%; padding: .6rem .75rem; border: 1px solid var(--border); border-radius: 8px; background: var(--bg); color: var(--text); font: inherit; }
.btn { background: var(--brand); color: #fff; border: 0; border-radius: 8px; padding: .6rem 1rem; font: inherit; font-weight: 600; cursor: pointer; }
.btn:hover { background: var(--brand-dark); }
.alert { background: var(--danger-bg); color: var(--danger); padding: .6rem .75rem; border-radius: 8px; margin-top: 1rem; }
.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 1rem; }
.stat { background: var(--surface); border: 1px solid var(--border); border-radius: 12px; padding: 1.25rem; }
.stat-value { font-size: 1.75rem; font-weight: 700; }
.stat-label { color: var(--muted); }
.page-head { display: flex; justify-content: space-between; align-items: center; gap: 1rem; flex-wrap: wrap; margin-bottom: 1rem; }
.page-head h1 { margin: 0; }
.search { display: flex; gap: .5rem; }
.table { width: 100%; border-collapse: collapse; background: var(--surface); border: 1px solid var(--border); border-radius: 12px; overflow: hidden; display: block; overflow-x: auto; }
.table th, .table td { padding: .65rem .85rem; text-align: left; border-bottom: 1px solid var(--border); white-space: nowrap; }
.table th { font-size: .8rem; text-transform: uppercase; letter-spacing: .03em; color: var(--muted); }
.pagination { display: flex; gap: .25rem; list-style: none; padding: 0; margin: 1rem 0; flex-wrap: wrap; }
.pagination li > * { display: block; padding: .35rem .7rem; border: 1px solid var(--border); border-radius: 6px; background: var(--surface); }
.pagination li.active > * { background: var(--brand); color: #fff; border-color: var(--brand); }
.pagination li.disabled > * { color: var(--muted); }
.details { display: grid; grid-template-columns: 140px 1fr; gap: .5rem 1rem; background: var(--surface); border: 1px solid var(--border); border-radius: 12px; padding: 1.25rem; }
.details dt { color: var(--muted); }
.details dd { margin: 0; }
.small { font-size: .85rem; }
.danger { color: var(--danger); }
.notice { background: var(--surface); border: 1px solid var(--border); border-left: 4px solid var(--brand); padding: .6rem .75rem; border-radius: 8px; margin: 1rem 0; }
.card { background: var(--surface); border: 1px solid var(--border); border-radius: 12px; padding: 1.25rem; margin-bottom: 1.25rem; }
.card h2 { font-size: 1.1rem; margin: 0 0 .75rem; }
.details.plain { border: 0; padding: 0; margin-bottom: 1rem; }
.form-grid { display: grid; gap: .4rem; max-width: 520px; }
.form-grid .btn { margin-top: .75rem; justify-self: start; }
.btn-secondary { background: transparent; color: var(--danger); border: 1px solid var(--danger); }
.btn-secondary:hover { background: var(--danger-bg); }
code { background: var(--bg); border: 1px solid var(--border); border-radius: 4px; padding: 0 .3rem; font-size: .85em; word-break: break-all; }
.badge { display: inline-block; padding: .1rem .55rem; border-radius: 999px; font-size: .8rem; font-weight: 600; border: 1px solid var(--border); }
.badge-connected { color: var(--brand); border-color: var(--brand); }
.badge-error, .badge-disconnected { color: var(--danger); border-color: var(--danger); }
.badge-pending { color: var(--muted); }
.list { background: var(--surface); border: 1px solid var(--border); border-radius: 12px; overflow: hidden; }
.list-item { display: flex; justify-content: space-between; gap: 1rem; padding: .8rem 1rem; border-bottom: 1px solid var(--border); color: var(--text); }
.list-item:hover { background: var(--bg); text-decoration: none; }
.list-item .right { display: flex; flex-direction: column; align-items: flex-end; gap: .35rem; white-space: nowrap; }
.preview { overflow: hidden; text-overflow: ellipsis; }
.dot { width: .6rem; height: .6rem; border-radius: 50%; background: var(--brand); display: inline-block; }
.chat { background: var(--surface); border: 1px solid var(--border); border-radius: 12px; padding: 1rem; height: 60vh; overflow-y: auto; display: flex; flex-direction: column; gap: .5rem; }
.bubble { max-width: 75%; padding: .5rem .75rem; border-radius: 12px; white-space: pre-wrap; word-wrap: break-word; }
.bubble.in { align-self: flex-start; background: var(--bg); border: 1px solid var(--border); }
.bubble.out { align-self: flex-end; background: var(--brand); color: #fff; }
.bubble .meta { font-size: .72rem; opacity: .75; margin-top: .2rem; }
.composer { display: flex; gap: .5rem; margin-top: .75rem; }
.composer textarea { flex: 1; padding: .6rem .75rem; border: 1px solid var(--border); border-radius: 8px; background: var(--bg); color: var(--text); font: inherit; resize: vertical; }