:root {
  --bg: #0b0e13; --panel: #121720; --panel2: #171e29; --line: #232c3a; --text: #e6ebf2; --muted: #8a96a8;
  --accent: #7c9cff; --accent2: #b58cff; --good: #2fd08a; --bad: #ff5d6c; --warn: #ffb547;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, Roboto, sans-serif;
}
* { box-sizing: border-box; }
html, body { margin: 0; background: var(--bg); color: var(--text); font: 14px/1.45 var(--sans); }
a { color: var(--accent); }
h2 { font-size: 13px; letter-spacing: .08em; text-transform: uppercase; color: var(--muted); margin: 0; font-weight: 600; }
h3 { font-size: 12px; color: var(--muted); text-transform: uppercase; letter-spacing: .08em; margin: 18px 0 8px; }
.muted { color: var(--muted); } .small { font-size: 12px; }
.pos { color: var(--good); } .neg { color: var(--bad); } .warn { color: var(--warn); }
.hidden { display: none !important; }

.topbar { position: sticky; top: 0; z-index: 10; display: flex; align-items: center; gap: 10px; padding: 10px 16px;
  background: rgba(11,14,19,.92); backdrop-filter: blur(8px); border-bottom: 1px solid var(--line); flex-wrap: wrap; }
.brand { display: flex; align-items: center; gap: 8px; font-weight: 700; font-size: 17px; letter-spacing: .02em; }
.logo { width: 28px; height: 28px; border-radius: 8px; display: grid; place-items: center; font-weight: 800;
  background: linear-gradient(135deg, var(--accent), var(--accent2)); color: #0b0e13; }
.spacer { flex: 1; }
.badge { padding: 3px 9px; border-radius: 6px; font: 700 11px var(--mono); letter-spacing: .08em; background: #243152; color: #9fb5ff; }
.badge.live { background: #4a1620; color: #ff8c97; animation: pulse 2s infinite; }
@keyframes pulse { 50% { opacity: .6; } }
.pill { padding: 3px 9px; border-radius: 999px; font-size: 12px; background: var(--panel2); color: var(--muted); border: 1px solid var(--line); }
.pill.ok::before, .pill.bad::before { content: "●"; margin-right: 5px; }
.pill.ok::before { color: var(--good); } .pill.bad::before { color: var(--bad); }
.tabs { display: flex; gap: 2px; background: var(--panel); border: 1px solid var(--line); border-radius: 10px; padding: 3px; }
.tabs button { background: none; border: 0; color: var(--muted); padding: 6px 12px; border-radius: 7px; cursor: pointer; font: 500 13px var(--sans); }
.tabs button.active { background: var(--panel2); color: var(--text); }

main { max-width: 1400px; margin: 0 auto; padding: 16px; }
.tab { display: none; } .tab.active { display: block; }
.card { background: var(--panel); border: 1px solid var(--line); border-radius: 14px; padding: 14px 16px; margin-bottom: 14px; min-width: 0; }
.card-head { display: flex; align-items: center; justify-content: space-between; gap: 10px; margin-bottom: 10px; flex-wrap: wrap; }
.grid2 { display: grid; grid-template-columns: 2fr 1fr; gap: 14px; }
.grid2 > .card { margin-bottom: 14px; }
#tab-brain .grid2, #tab-controls .grid2 { grid-template-columns: 1fr 1fr; }

.kpis { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 10px; margin-bottom: 14px; }
.kpi { background: var(--panel); border: 1px solid var(--line); border-radius: 12px; padding: 12px 14px; }
.kpi .label { color: var(--muted); font-size: 11px; text-transform: uppercase; letter-spacing: .08em; }
.kpi .value { font: 600 22px var(--mono); margin-top: 4px; }
.kpi .sub { color: var(--muted); font-size: 12px; margin-top: 2px; }

.chart-wrap { position: relative; height: 260px; }
.seg { display: flex; gap: 2px; background: var(--panel2); border-radius: 8px; padding: 2px; }
.seg button { background: none; border: 0; color: var(--muted); padding: 4px 10px; border-radius: 6px; cursor: pointer; font-size: 12px; }
.seg button.active { background: var(--line); color: var(--text); }
select, input, textarea { background: var(--panel2); color: var(--text); border: 1px solid var(--line); border-radius: 8px; padding: 7px 10px; font: 14px var(--sans); }
textarea { resize: vertical; width: 100%; }

.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 13px; }
th { text-align: left; color: var(--muted); font-weight: 500; font-size: 11px; text-transform: uppercase; letter-spacing: .06em; padding: 6px 8px; border-bottom: 1px solid var(--line); white-space: nowrap; }
td { padding: 8px; border-bottom: 1px solid #1a212d; white-space: nowrap; font-family: var(--mono); font-size: 12.5px; }
td.txt { font-family: var(--sans); white-space: normal; max-width: 380px; color: var(--muted); }
tr.click { cursor: pointer; } tr.click:hover td { background: var(--panel2); }
.tag { display: inline-block; padding: 1px 7px; border-radius: 5px; font-size: 11px; background: var(--panel2); border: 1px solid var(--line); color: var(--muted); font-family: var(--sans); }
.tag.long { color: var(--good); border-color: #1e4d3a; } .tag.short { color: var(--bad); border-color: #5a2430; }
.tag.open { color: var(--accent); } .tag.closed { color: var(--muted); } .tag.pending { color: var(--warn); }

.riskbox .row { display: flex; justify-content: space-between; padding: 7px 0; border-bottom: 1px solid #1a212d; }
.riskbox .row span:last-child { font-family: var(--mono); }
.meter { height: 8px; border-radius: 99px; background: var(--panel2); overflow: hidden; margin: 8px 0 12px; }
.meter > div { height: 100%; background: linear-gradient(90deg, var(--good), var(--warn), var(--bad)); }

.timeline, .list { display: flex; flex-direction: column; gap: 8px; }
.timeline.tall, .list.tall { max-height: 640px; overflow-y: auto; }
.item { background: var(--panel2); border: 1px solid var(--line); border-radius: 10px; padding: 10px 12px; }
.item .meta { display: flex; gap: 8px; align-items: center; color: var(--muted); font-size: 11.5px; margin-bottom: 4px; flex-wrap: wrap; }
.item p { margin: 4px 0 0; white-space: pre-wrap; }
.item .actions { font-family: var(--mono); font-size: 12px; color: var(--accent); margin-top: 6px; }
.conf { font-family: var(--mono); font-size: 11px; }
.item.inactive { opacity: .45; }

.chat-card { display: flex; flex-direction: column; height: calc(100vh - 120px); min-height: 480px; }
.chat-log { flex: 1; overflow-y: auto; display: flex; flex-direction: column; gap: 10px; padding: 4px 2px 12px; }
.msg { max-width: 85%; padding: 10px 13px; border-radius: 14px; white-space: pre-wrap; word-wrap: break-word; }
.msg.user { align-self: flex-end; background: #253159; border-bottom-right-radius: 4px; }
.msg.assistant { align-self: flex-start; background: var(--panel2); border: 1px solid var(--line); border-bottom-left-radius: 4px; }
.msg .tools { display: flex; flex-wrap: wrap; gap: 4px; margin-bottom: 6px; }
.msg .tools .tag { font-family: var(--mono); color: var(--accent2); }
.chat-form { display: flex; gap: 8px; align-items: flex-end; }
.typing::after { content: "▍"; animation: blink 1s infinite; } @keyframes blink { 50% { opacity: 0; } }

.btn { background: var(--panel2); color: var(--text); border: 1px solid var(--line); border-radius: 8px; padding: 8px 14px; cursor: pointer; font: 500 13px var(--sans); }
.btn:hover { border-color: #33405a; }
.btn.primary { background: linear-gradient(135deg, var(--accent), var(--accent2)); color: #0b0e13; border: 0; font-weight: 600; }
.btn.danger { background: #3a1219; color: #ff8c97; border-color: #5a2430; }
.btn.good { background: #10301f; color: var(--good); border-color: #1e4d3a; }
.btn.ghost { background: none; }
.btn.small { padding: 4px 9px; font-size: 12px; }
.btn.wide { width: 100%; }
.row { display: flex; align-items: center; } .gap { gap: 8px; flex-wrap: wrap; }

.controls { display: flex; flex-direction: column; gap: 10px; }
.switch { display: flex; align-items: center; justify-content: space-between; gap: 10px; padding: 10px 12px; border-radius: 10px; background: var(--panel2); border: 1px solid var(--line); }
.switch .desc { color: var(--muted); font-size: 12px; }
.feeds { display: flex; flex-wrap: wrap; gap: 6px; }
.riskform { display: grid; grid-template-columns: 1fr 110px 90px; gap: 6px 10px; align-items: center; font-size: 13px; }
.riskform input { width: 100%; padding: 5px 8px; font-family: var(--mono); }
.riskform .hard { color: var(--muted); font-family: var(--mono); font-size: 12px; }
.riskform .full { grid-column: 1 / -1; }

.alert { max-width: 1400px; margin: 12px auto 0; padding: 10px 14px; border-radius: 10px; background: #3a1219; color: #ffb3ba; border: 1px solid #5a2430; }
.modal { position: fixed; inset: 0; background: rgba(0,0,0,.6); display: grid; place-items: center; z-index: 50; padding: 16px; }
.modal-card { background: var(--panel); border: 1px solid var(--line); border-radius: 14px; max-width: 760px; width: 100%; max-height: 88vh; overflow-y: auto; padding: 18px; position: relative; }
.modal-card .close { position: absolute; right: 10px; top: 10px; }
.kv { display: grid; grid-template-columns: 140px 1fr; gap: 4px 12px; font-size: 13px; }
.kv div:nth-child(odd) { color: var(--muted); }
pre { background: var(--panel2); padding: 10px; border-radius: 8px; overflow-x: auto; font-size: 11.5px; }

.login-body { display: grid; place-items: center; min-height: 100vh; padding: 16px; }
.login-card { width: 100%; max-width: 340px; background: var(--panel); border: 1px solid var(--line); border-radius: 16px; padding: 26px; display: flex; flex-direction: column; gap: 10px; }
.login-card label { color: var(--muted); font-size: 12px; margin-top: 8px; }
.login-card .error { color: var(--bad); min-height: 1em; margin: 0; font-size: 13px; }

@media (max-width: 900px) {
  .grid2, #tab-brain .grid2, #tab-controls .grid2 { grid-template-columns: 1fr; }
  .tabs { order: 10; width: 100%; overflow-x: auto; }
  .tabs button { flex: 1; padding: 7px 6px; }
  main { padding: 12px; }
  .kpi .value { font-size: 18px; }
  .riskform { grid-template-columns: 1fr 90px 70px; }
  .chat-card { height: calc(100vh - 160px); }
  .msg { max-width: 94%; }
}

/* ---- phones: bottom tab bar, larger text and tap targets (desktop layout unchanged) ---- */
@media (max-width: 640px) {
  html { -webkit-text-size-adjust: 100%; }
  body { font-size: 15px; }
  /* backdrop-filter would make the topbar the containing block of the fixed tab bar */
  .topbar { backdrop-filter: none; background: var(--bg); padding: 8px 12px; gap: 6px; }
  /* row 1: brand, mode, sign-out; row 2: status pills */
  .topbar .spacer { display: none; }
  .topbar form { order: 1; margin-left: auto; }
  .topbar::after { content: ""; order: 1; flex-basis: 100%; height: 0; }
  .topbar .pill { order: 2; }
  .brand { font-size: 16px; }
  .pill { font-size: 12px; padding: 3px 9px; }
  .tabs { position: fixed; left: 0; right: 0; bottom: 0; z-index: 30; width: auto; order: 0; overflow: visible;
    border-radius: 0; border-width: 1px 0 0; background: var(--panel); box-shadow: 0 -6px 16px rgba(0,0,0,.45); gap: 4px;
    padding: 6px 8px calc(6px + env(safe-area-inset-bottom)); }
  .tabs button { flex: 1; min-height: 44px; padding: 6px 2px; font-size: 13.5px; }
  main { padding: 12px 12px calc(84px + env(safe-area-inset-bottom)); }
  .alert { margin: 10px 12px 0; }

  .kpis { grid-template-columns: 1fr 1fr; gap: 8px; margin-bottom: 12px; }
  .kpi { padding: 10px 12px; }
  .kpi .value { font-size: 19px; }
  .kpi .sub { font-size: 12.5px; }
  .card { padding: 12px 13px; margin-bottom: 12px; border-radius: 12px; }
  .card-head { margin-bottom: 8px; }
  .chart-wrap { height: 210px; }
  .seg button { padding: 7px 11px; font-size: 13px; }

  .riskbox .row { gap: 10px; padding: 9px 0; font-size: 14px; }
  .riskbox .row > span:first-child { flex: 1 1 auto; }
  .riskbox .row > span:last-child { text-align: right; }

  table { font-size: 13.5px; }
  td { font-size: 13px; padding: 9px 8px; }
  .item { padding: 11px 12px; }
  .item .meta { font-size: 12.5px; }
  .item .actions { font-size: 12.5px; }
  .timeline.tall, .list.tall { max-height: none; }

  .btn { min-height: 42px; padding: 9px 14px; font-size: 14px; }
  .btn.small { min-height: 34px; padding: 6px 11px; font-size: 13px; }
  select, input, textarea { font-size: 16px; } /* 16px stops iOS zooming into fields */
  .switch { flex-wrap: wrap; }
  .riskform { font-size: 14px; }

  .chat-card { min-height: 320px; } /* height fitted to the space above the tab bar by fitChat() */
  body.typing-chat .tabs { display: none; } /* keyboard open: give the message box the room */
  .msg { max-width: 94%; font-size: 15px; }

  .modal { padding: 0; place-items: stretch; }
  .modal-card { max-height: 100dvh; height: 100dvh; border-radius: 0; padding: 16px 14px calc(16px + env(safe-area-inset-bottom)); }
  .kv { grid-template-columns: 110px 1fr; font-size: 14px; }
}