:root {
  --bg: #0d1520; --card: #12202f; --line: #22374d; --text: #eef3f8;
  --muted: #9aa7b4; --green: #2ebd85; --amber: #ffb020; --red: #f0585a;
  --blue: #4da3ff; --radius: 10px;
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--text);
  font-family: -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif; }
.topbar { display: flex; justify-content: space-between; align-items: center;
  padding: 12px 16px; border-bottom: 1px solid var(--line); position: sticky; top: 0; background: var(--bg); }
.brand { font-weight: 800; font-size: 18px; }
.topbar-right { display: flex; gap: 10px; align-items: center; }
main { max-width: 760px; margin: 0 auto; padding: 16px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 14px; margin-bottom: 14px; }
h1 { font-size: 22px; margin: 4px 0 2px; }
h2 { font-size: 16px; margin: 0 0 10px; }
.muted { color: var(--muted); } .small { font-size: 12px; }
.hidden { display: none !important; }
.badge { font-size: 11px; font-weight: 700; padding: 3px 8px; border-radius: 999px; border: 1px solid var(--line); }
.badge-demo { color: var(--amber); border-color: var(--amber); }
.badge-live { color: var(--green); border-color: var(--green); }
.btn { background: var(--blue); color: #06121f; border: 0; border-radius: 8px;
  padding: 10px 14px; font-weight: 700; cursor: pointer; font-size: 14px; }
.btn:disabled { opacity: .45; cursor: default; }
.btn-green { background: var(--green); }
.btn-ghost { background: transparent; color: var(--muted); border: 1px solid var(--line); padding: 6px 10px; }
.btn-block { width: 100%; margin-top: 8px; }
input, textarea { width: 100%; background: #0a141f; color: var(--text); border: 1px solid var(--line);
  border-radius: 8px; padding: 10px; font-size: 14px; margin-bottom: 10px; }
label { display: block; font-size: 12px; color: var(--muted); margin-bottom: 4px; }
.counters { display: grid; grid-template-columns: repeat(auto-fit, minmax(120px, 1fr)); gap: 10px; }
.counter { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 12px; text-align: center; }
.counter .num { font-size: 26px; font-weight: 800; }
.counter .lbl { font-size: 11px; color: var(--muted); text-transform: uppercase; letter-spacing: .04em; }
.conv { display: flex; justify-content: space-between; align-items: center; gap: 10px;
  padding: 12px 14px; background: var(--card); border: 1px solid var(--line);
  border-radius: var(--radius); margin-bottom: 10px; cursor: pointer; }
.conv:hover { border-color: var(--blue); }
.conv .who { font-weight: 700; }
.pill { font-size: 10px; font-weight: 700; padding: 2px 7px; border-radius: 999px; background: #22374d; color: var(--muted); }
.pill-green { background: rgba(46,189,133,.15); color: var(--green); }
.pill-amber { background: rgba(255,176,32,.15); color: var(--amber); }
.unread { background: var(--red); color: #fff; border-radius: 999px; font-size: 11px;
  font-weight: 800; min-width: 20px; height: 20px; display: inline-flex; align-items: center; justify-content: center; }
.thread { display: flex; flex-direction: column; gap: 8px; margin-bottom: 12px; }
.msg { max-width: 82%; padding: 9px 12px; border-radius: 12px; font-size: 14px; line-height: 1.35; }
.msg .when { display: block; font-size: 10px; color: var(--muted); margin-top: 4px; }
.msg.in { align-self: flex-start; background: #1b2c40; }
.msg.out { align-self: flex-end; background: #14401f; }
.msg.system { align-self: center; background: transparent; color: var(--muted);
  font-size: 12px; border: 1px dashed var(--line); }
.row { display: flex; gap: 8px; } .row > * { flex: 1; }
.toast { position: fixed; left: 50%; bottom: 18px; transform: translateX(-50%);
  background: #1b2c40; border: 1px solid var(--blue); color: var(--text);
  padding: 10px 16px; border-radius: 8px; font-size: 13px; z-index: 50; max-width: 92%; }
.error { color: var(--red); font-size: 13px; min-height: 18px; }
a { color: var(--blue); }