:root {
  --bg: #0b0f19;
  --panel: #131a2a;
  --panel-2: #1a2337;
  --line: #263149;
  --ink: #e8edf7;
  --muted: #93a0bb;
  --accent: #4f7cff;
  --accent-2: #22c55e;
  --danger: #ef4444;
  --warn: #f59e0b;
  --radius: 10px;
}
* { box-sizing: border-box; }
body {
  margin: 0; background: var(--bg); color: var(--ink);
  font: 14px/1.5 ui-sans-serif, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}
a { color: var(--accent); }
header.topbar {
  display: flex; align-items: center; gap: 16px;
  padding: 12px 20px; border-bottom: 1px solid var(--line); background: var(--panel);
  position: sticky; top: 0; z-index: 10;
}
header.topbar h1 { font-size: 15px; margin: 0; font-weight: 650; letter-spacing: .2px; }
header.topbar .sub { color: var(--muted); font-size: 12px; }
header.topbar nav { margin-left: auto; display: flex; gap: 14px; font-size: 13px; }

.layout { display: grid; grid-template-columns: 380px 1fr 400px; gap: 14px; padding: 14px; align-items: start; }
@media (max-width: 1400px) { .layout { grid-template-columns: 340px 1fr; } .col-right { grid-column: 1 / -1; } }
@media (max-width: 900px)  { .layout { grid-template-columns: 1fr; } }

.card { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); margin-bottom: 14px; overflow: hidden; }
.card > h2 {
  margin: 0; padding: 10px 14px; font-size: 12px; font-weight: 650; letter-spacing: .6px;
  text-transform: uppercase; color: var(--muted); border-bottom: 1px solid var(--line); background: var(--panel-2);
  display: flex; align-items: center; gap: 8px;
}
.card > h2 .count { margin-left: auto; font-weight: 500; color: var(--muted); text-transform: none; letter-spacing: 0; }
.card .body { padding: 14px; }
.card .body.tight { padding: 8px 14px 12px; }

button {
  font: inherit; border: 1px solid var(--line); background: var(--panel-2); color: var(--ink);
  padding: 9px 14px; border-radius: 8px; cursor: pointer;
}
button:hover:not(:disabled) { border-color: var(--accent); }
button:disabled { opacity: .45; cursor: not-allowed; }
button.primary { background: var(--accent); border-color: var(--accent); color: #fff; font-weight: 600; }
button.danger { background: var(--danger); border-color: var(--danger); color: #fff; font-weight: 600; }
button.ghost { background: transparent; }
button.sm { padding: 5px 10px; font-size: 12px; }

select, input, textarea {
  font: inherit; width: 100%; background: var(--bg); color: var(--ink);
  border: 1px solid var(--line); border-radius: 8px; padding: 8px 10px;
}
textarea { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 12px; line-height: 1.55; }
label.field { display: block; margin-bottom: 10px; }
label.field > span { display: block; font-size: 11px; color: var(--muted); margin-bottom: 4px; letter-spacing: .3px; }

.row { display: flex; gap: 8px; align-items: center; }
.row > * { flex: 1; }
.row.auto > * { flex: none; }

.status { display: flex; align-items: center; gap: 8px; font-size: 12.5px; color: var(--muted); }
.dot { width: 9px; height: 9px; border-radius: 50%; background: #475569; flex: none; }
.dot.live { background: var(--accent-2); box-shadow: 0 0 0 4px rgba(34,197,94,.18); animation: pulse 1.8s infinite; }
.dot.connecting { background: var(--warn); }
.dot.error { background: var(--danger); }
@keyframes pulse { 50% { box-shadow: 0 0 0 8px rgba(34,197,94,0); } }

.meter { height: 5px; background: var(--panel-2); border-radius: 3px; overflow: hidden; margin-top: 10px; }
.meter > i { display: block; height: 100%; width: 0%; background: var(--accent-2); transition: width .08s linear; }

#transcript { max-height: 62vh; overflow-y: auto; padding: 10px 14px; }
.turn { margin-bottom: 12px; }
.turn .who { font-size: 10.5px; letter-spacing: .8px; text-transform: uppercase; color: var(--muted); margin-bottom: 3px; }
.turn.agent .who { color: var(--accent); }
.turn.user  .who { color: var(--accent-2); }
.turn .text { white-space: pre-wrap; }
.turn.tool { font-size: 12px; color: var(--muted); border-left: 2px solid var(--line); padding-left: 9px; font-family: ui-monospace, Menlo, monospace; }
.turn.tool b { color: var(--warn); font-weight: 600; }
.turn.sys { font-size: 12px; color: var(--warn); }

table.grid { width: 100%; border-collapse: collapse; font-size: 12.5px; }
table.grid th { text-align: left; font-weight: 600; color: var(--muted); font-size: 11px; text-transform: uppercase; letter-spacing: .4px; padding: 6px 8px; border-bottom: 1px solid var(--line); }
table.grid td { padding: 5px 8px; border-bottom: 1px solid rgba(38,49,73,.5); vertical-align: top; }
table.grid td.num { text-align: right; font-variant-numeric: tabular-nums; white-space: nowrap; }
table.grid tr.room-head td { color: var(--accent); font-weight: 600; padding-top: 10px; border-bottom: none; }

.kv { display: flex; justify-content: space-between; gap: 10px; padding: 3px 0; font-size: 12.5px; }
.kv .k { color: var(--muted); }
.kv .v { font-variant-numeric: tabular-nums; text-align: right; }
.kv.total { border-top: 1px solid var(--line); margin-top: 6px; padding-top: 8px; font-size: 15px; font-weight: 700; }
.kv.total .v { color: var(--accent-2); }
.kv.deposit .v { color: var(--accent); font-weight: 600; }

.chip { display: inline-block; padding: 2px 8px; border-radius: 999px; font-size: 11px; border: 1px solid var(--line); margin: 0 4px 4px 0; }
.chip.yes { border-color: rgba(34,197,94,.5); color: #86efac; background: rgba(34,197,94,.08); }
.chip.no  { border-color: var(--line); color: var(--muted); text-decoration: line-through; }

.empty { color: var(--muted); font-size: 12.5px; font-style: italic; }
.mono { font-family: ui-monospace, Menlo, monospace; font-size: 12px; }
.warnbox { background: rgba(245,158,11,.1); border: 1px solid rgba(245,158,11,.4); color: #fcd34d; padding: 10px 12px; border-radius: 8px; font-size: 12.5px; margin: 14px; }
.errbox  { background: rgba(239,68,68,.1); border: 1px solid rgba(239,68,68,.45); color: #fca5a5; padding: 10px 12px; border-radius: 8px; font-size: 12.5px; margin: 14px; white-space: pre-wrap; }
.okbox   { background: rgba(34,197,94,.1); border: 1px solid rgba(34,197,94,.45); color: #86efac; padding: 10px 12px; border-radius: 8px; font-size: 12.5px; }

/* settings */
.tabs { display: flex; gap: 6px; flex-wrap: wrap; padding: 12px 20px 0; }
.tabs button { border-radius: 8px 8px 0 0; border-bottom-color: transparent; }
.tabs button.active { background: var(--panel); border-color: var(--line); border-bottom-color: var(--panel); color: var(--ink); font-weight: 600; }
.settings-wrap { padding: 0 20px 40px; }
fieldset.node { border: 1px solid var(--line); border-radius: 8px; padding: 10px 12px; margin: 0 0 12px; background: var(--panel); }
fieldset.node > legend { font-size: 11px; letter-spacing: .5px; text-transform: uppercase; color: var(--accent); padding: 0 6px; }
fieldset.node fieldset.node { background: var(--panel-2); }
.grid2 { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 0 14px; }
.savebar { position: sticky; bottom: 0; background: var(--panel); border-top: 1px solid var(--line); padding: 12px 20px; display: flex; gap: 10px; align-items: center; z-index: 5; }
.savebar .msg { color: var(--muted); font-size: 12.5px; }

/* ── modal ─────────────────────────────────────────────────────────────── */
.modal-backdrop {
  position: fixed; inset: 0; background: rgba(2, 6, 16, .72);
  display: flex; align-items: flex-start; justify-content: center;
  padding: 40px 20px; overflow-y: auto; z-index: 50;
}
.modal-backdrop[hidden] { display: none; }
.modal {
  background: var(--panel); border: 1px solid var(--line); border-radius: 12px;
  width: 100%; max-width: 720px; box-shadow: 0 24px 60px rgba(0,0,0,.5);
}
.modal > header {
  display: flex; align-items: center; gap: 12px;
  padding: 14px 18px; border-bottom: 1px solid var(--line); background: var(--panel-2);
  border-radius: 12px 12px 0 0;
}
.modal > header h3 { margin: 0; font-size: 14px; font-weight: 650; }
.modal > header .close { margin-left: auto; background: none; border: none; color: var(--muted); font-size: 20px; padding: 0 6px; cursor: pointer; }
.modal > .body { padding: 18px; }
.modal > footer {
  display: flex; gap: 10px; align-items: center;
  padding: 14px 18px; border-top: 1px solid var(--line); background: var(--panel-2);
  border-radius: 0 0 12px 12px;
}
.modal > footer .spacer { flex: 1; }
.form-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 0 14px; }
.form-grid .span2 { grid-column: span 2; }
.form-grid .full { grid-column: 1 / -1; }
.form-section {
  grid-column: 1 / -1; margin: 6px 0 8px; padding-top: 10px; border-top: 1px solid var(--line);
  font-size: 11px; letter-spacing: .5px; text-transform: uppercase; color: var(--accent); font-weight: 600;
}
.form-section:first-child { border-top: none; padding-top: 0; margin-top: 0; }
label.field .hint { display: block; font-size: 10.5px; color: var(--muted); margin-top: 3px; font-style: italic; }