/* Colours are tokens. Light by default, dark by system preference or by the theme switch. */
:root {
  --bg: #f4f6f8; --panel: #ffffff; --panel-2: #f8fafb; --ink: #16202b; --muted: #5a6876; --line: #dde3e9;
  --accent: #0b6b6b; --accent-ink: #ffffff; --accent-soft: #e0f0ef;
  --warn: #8a5100; --warn-soft: #fdf2dc; --bad: #a4262c; --bad-soft: #fbe6e7; --good: #17703f; --good-soft: #e2f4ea;
  --side: #10242b; --side-ink: #dbe6ea; --side-muted: #8fa6ae; --side-hover: #1b3640; --side-on: #21454f;
  --code-bg: #10242b; --code-ink: #dbe6ea; --focus: #2a8fd6; --chip: #e8edf1;
  --edge: #7d8b98; --edge-back: #b4bec7; --node-conv: #e0f0ef; --node-cond: #fdf2dc; --node-tool: #e6ecfb; --node-end: #e2f4ea; --node-hand: #fbe6e7;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0f1419; --panel: #172028; --panel-2: #1c2731; --ink: #e3e9ee; --muted: #9aa8b5; --line: #2b3843;
    --accent: #3fb6b2; --accent-ink: #062322; --accent-soft: #163634;
    --warn: #f0b85a; --warn-soft: #3a2c13; --bad: #ff8a8f; --bad-soft: #3d1c1f; --good: #6fd39b; --good-soft: #15321f;
    --side: #0a1014; --side-ink: #d3dde3; --side-muted: #7f939d; --side-hover: #16232a; --side-on: #1f3640;
    --code-bg: #0a1014; --code-ink: #d3dde3; --focus: #6cb8f0; --chip: #24313c;
    --edge: #8796a3; --edge-back: #4c5a66; --node-conv: #163634; --node-cond: #3a2c13; --node-tool: #1d2945; --node-end: #15321f; --node-hand: #3d1c1f;
  }
}
:root[data-theme="dark"] {
  --bg: #0f1419; --panel: #172028; --panel-2: #1c2731; --ink: #e3e9ee; --muted: #9aa8b5; --line: #2b3843;
  --accent: #3fb6b2; --accent-ink: #062322; --accent-soft: #163634;
  --warn: #f0b85a; --warn-soft: #3a2c13; --bad: #ff8a8f; --bad-soft: #3d1c1f; --good: #6fd39b; --good-soft: #15321f;
  --side: #0a1014; --side-ink: #d3dde3; --side-muted: #7f939d; --side-hover: #16232a; --side-on: #1f3640;
  --code-bg: #0a1014; --code-ink: #d3dde3; --focus: #6cb8f0; --chip: #24313c;
  --edge: #8796a3; --edge-back: #4c5a66; --node-conv: #163634; --node-cond: #3a2c13; --node-tool: #1d2945; --node-end: #15321f; --node-hand: #3d1c1f;
}
* { box-sizing: border-box }
html, body { margin: 0; background: var(--bg); color: var(--ink) }
body { font: 15px/1.5 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Noto Sans Telugu", "Noto Sans Devanagari", sans-serif; overflow-x: hidden }
button, input, select, textarea { font: inherit; color: inherit }
a { color: var(--accent) }
:focus-visible { outline: 2px solid var(--focus); outline-offset: 2px }
.skip { position: absolute; left: -999px; top: 0 } .skip:focus { left: 8px; top: 8px; background: var(--panel); padding: 6px 10px; z-index: 20 }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0) }

.app { display: grid; grid-template-columns: 240px minmax(0, 1fr); min-height: 100vh }
aside.side { background: var(--side); color: var(--side-ink); padding: 18px 12px; display: flex; flex-direction: column; gap: 2px }
aside.side h1 { font-size: 16px; margin: 0 8px 4px; color: var(--side-ink) }
aside.side .who { font-size: 12px; color: var(--side-muted); margin: 0 8px 12px; word-break: break-all }
aside.side label.lbl { font-size: 12px; color: var(--side-muted); margin: 10px 8px 4px; display: block }
aside.side select { width: 100%; background: var(--side-hover); color: var(--side-ink); border: 1px solid var(--side-on); border-radius: 7px; padding: 7px 8px }
nav.menu { display: flex; flex-direction: column; gap: 1px; margin-top: 8px }
nav.menu a { color: var(--side-ink); text-decoration: none; padding: 8px 10px; border-radius: 7px; font-size: 14px }
nav.menu a:hover { background: var(--side-hover) } nav.menu a[aria-current="page"] { background: var(--side-on); font-weight: 600 }
nav.menu .grp { font-size: 11px; text-transform: uppercase; letter-spacing: .06em; color: var(--side-muted); margin: 12px 10px 2px }
.side-foot { margin-top: auto; display: flex; gap: 6px; flex-wrap: wrap; padding: 12px 4px 0 }
.side-foot button { background: var(--side-hover); color: var(--side-ink); border: 1px solid var(--side-on); border-radius: 7px; padding: 6px 10px; cursor: pointer; font-size: 13px }
.menu-toggle { display: none }

main { padding: 24px 32px 60px; max-width: 1180px; width: 100%; min-width: 0 }
header.top { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; margin-bottom: 18px }
header.top h2 { margin: 0; font-size: 22px }
header.top .sub { color: var(--muted); font-size: 14px }
h3 { font-size: 16px; margin: 0 0 10px } h4 { font-size: 14px; margin: 14px 0 6px }
.panel { background: var(--panel); border: 1px solid var(--line); border-radius: 10px; padding: 18px; margin-bottom: 16px; min-width: 0 }
.panel.flat { background: var(--panel-2) }
.cols { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 16px; align-items: start }
.cols > .panel { margin-bottom: 0 }
.cols > * { min-width: 0 }
.cols.wide-right { grid-template-columns: minmax(0, 1fr) minmax(0, 1.5fr) }
.kv { display: inline-block; margin: 0 10px 2px 0; font-size: 13px; word-break: break-word } .kv b { color: var(--muted); font-weight: 600 }
td code, p code { white-space: pre-wrap; overflow-wrap: anywhere }
.stack > * + * { margin-top: 16px }
.kpis { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 12px; margin-bottom: 16px }
.kpi { background: var(--panel); border: 1px solid var(--line); border-radius: 10px; padding: 14px }
.kpi .v { font-size: 24px; font-weight: 650; font-variant-numeric: tabular-nums }
.kpi .k { font-size: 13px; color: var(--muted) }

.tabs { display: flex; gap: 2px; border-bottom: 1px solid var(--line); margin-bottom: 18px; overflow-x: auto }
.tabs button { all: unset; cursor: pointer; padding: 9px 14px; color: var(--muted); border-bottom: 2px solid transparent; white-space: nowrap }
.tabs button[aria-selected="true"] { color: var(--ink); border-color: var(--accent); font-weight: 600 }
.tabs button:focus-visible { outline: 2px solid var(--focus) }

.tbl-wrap { overflow-x: auto; max-width: 100% }
table { border-collapse: collapse; width: 100%; font-size: 14px }
th, td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--line); vertical-align: top }
th { font-size: 12px; color: var(--muted); font-weight: 600; text-transform: uppercase; letter-spacing: .03em }
td.num, th.num { text-align: right; font-variant-numeric: tabular-nums }
tr.click { cursor: pointer } tr.click:hover td { background: var(--panel-2) }
tr.sel td { background: var(--accent-soft) }

.field { margin-bottom: 12px }
.field label, .field .lab { display: block; font-size: 13px; font-weight: 600; margin-bottom: 3px }
.field small { color: var(--muted); display: block; margin-bottom: 3px }
input[type=text], input[type=password], input[type=email], input[type=number], textarea, select {
  width: 100%; padding: 8px 10px; border: 1px solid var(--line); border-radius: 7px; background: var(--panel); color: var(--ink) }
textarea { min-height: 76px; resize: vertical }
.grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 0 16px }
.inline { display: flex; gap: 8px; align-items: end; flex-wrap: wrap } .inline .field { flex: 1 1 160px; margin-bottom: 0 }
.check { display: flex; gap: 8px; align-items: center; font-weight: 400 !important }
.row { border: 1px solid var(--line); border-radius: 8px; padding: 12px; margin-bottom: 10px }
.btn { cursor: pointer; border: 1px solid var(--line); background: var(--panel); color: var(--ink); border-radius: 7px; padding: 7px 13px; font-size: 14px; white-space: nowrap }
.btn:hover:not(:disabled) { border-color: var(--accent) }
.btn.primary { background: var(--accent); border-color: var(--accent); color: var(--accent-ink) }
.btn.danger { color: var(--bad); border-color: var(--bad) }
.btn.small { padding: 3px 9px; font-size: 13px }
.btn:disabled { opacity: .5; cursor: not-allowed }
.actions { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; margin-top: 12px }
.muted { color: var(--muted) } .small { font-size: 13px }
.err { color: var(--bad); font-size: 14px }
.badge { display: inline-block; font-size: 12px; padding: 1px 8px; border-radius: 99px; background: var(--chip); color: var(--muted); white-space: nowrap }
.badge.good, .badge.Active, .badge.active, .badge.succeeded, .badge.ok { background: var(--good-soft); color: var(--good) }
.badge.info, .badge.Testing, .badge.Approved, .badge.running, .badge.queued { background: var(--accent-soft); color: var(--accent) }
.badge.bad, .badge.Failed, .badge.dead, .badge.disabled, .badge.denied { background: var(--bad-soft); color: var(--bad) }
.badge.warn, .badge.recovered, .badge.handoff, .badge.onboarding { background: var(--warn-soft); color: var(--warn) }
.note { background: var(--warn-soft); color: var(--warn); padding: 10px 12px; border-radius: 8px; margin-bottom: 12px; font-size: 14px }
.note.bad { background: var(--bad-soft); color: var(--bad) }
.note.good { background: var(--good-soft); color: var(--good) }
.note.info { background: var(--accent-soft); color: var(--accent) }

/* States every list has */
.state-box { border: 1px dashed var(--line); border-radius: 8px; padding: 18px; text-align: center; color: var(--muted); font-size: 14px }
.state-box.error { border-color: var(--bad); color: var(--bad); background: var(--bad-soft) }
.state-box.na { border-style: solid; text-align: left; background: var(--panel-2) }
.state-box.na b { color: var(--ink) }
.loading::before { content: ""; display: inline-block; width: 12px; height: 12px; margin-right: 8px; vertical-align: -1px;
  border: 2px solid var(--line); border-top-color: var(--accent); border-radius: 50%; animation: spin .8s linear infinite }
@keyframes spin { to { transform: rotate(360deg) } }
@media (prefers-reduced-motion: reduce) { .loading::before { animation: none } }

code, .mono { font: 13px ui-monospace, Menlo, monospace }
pre { background: var(--code-bg); color: var(--code-ink); padding: 12px; border-radius: 8px; overflow: auto; font: 12.5px/1.5 ui-monospace, Menlo, monospace; max-height: 340px; white-space: pre-wrap; word-break: break-word }
.steps { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 16px }
.steps button { all: unset; cursor: pointer; font-size: 13px; padding: 5px 10px; border-radius: 6px; background: var(--chip); color: var(--muted) }
.steps button.on { background: var(--accent); color: var(--accent-ink) }
.save { font-size: 13px; color: var(--muted) }
.wstate { display: grid; grid-template-columns: 170px 110px 1fr; gap: 10px; padding: 9px 0; border-top: 1px solid var(--line); font-size: 14px }
.wstate:first-child { border-top: 0 }

.chat { display: grid; grid-template-columns: 1.2fr 1fr; gap: 16px }
.log { height: 420px; overflow: auto; display: flex; flex-direction: column; gap: 8px; padding: 4px }
.msg { max-width: 84%; padding: 8px 12px; border-radius: 12px; white-space: pre-wrap; word-break: break-word }
.msg.agent, .msg.assistant { background: var(--chip); align-self: flex-start }
.msg.customer, .msg.user { background: var(--accent); color: var(--accent-ink); align-self: flex-end }
.msg .who { display: block; font-size: 11px; opacity: .75 }
.send { display: flex; gap: 8px; margin-top: 12px }
.trace { max-height: 520px; overflow: auto; font-size: 13px }
.trace > div { padding: 6px 0; border-bottom: 1px solid var(--line) }
.scen { border: 1px solid var(--line); border-radius: 8px; margin-bottom: 8px }
.scen > summary { padding: 9px 12px; cursor: pointer; display: flex; gap: 10px; align-items: center; flex-wrap: wrap }
.scen[open] > summary { border-bottom: 1px solid var(--line) }
.scen .body { padding: 10px 12px }
.bar { height: 10px; background: var(--accent); border-radius: 3px; min-width: 2px }
td.barcell, th.barcell { width: 28% }

/* Workflow studio */
.graph-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: 8px; background: var(--panel-2); padding: 8px 0 }
.graph-wrap svg { display: block }
svg .node rect { stroke: var(--line); stroke-width: 1.2 }
svg .node.conversation rect { fill: var(--node-conv) } svg .node.condition rect { fill: var(--node-cond) }
svg .node.tool_action rect { fill: var(--node-tool) } svg .node.end rect { fill: var(--node-end) } svg .node.handoff rect { fill: var(--node-hand) }
svg .node.entry rect { stroke: var(--accent); stroke-width: 2.5 }
svg .node text { fill: var(--ink); font: 12px ui-monospace, Menlo, monospace } svg .node text.t { fill: var(--muted); font: 10.5px -apple-system, sans-serif }
svg .edge { fill: none; stroke: var(--edge); stroke-width: 1.3 } svg .edge.back { stroke: var(--edge-back); stroke-dasharray: 4 3 }
svg .edge.err { stroke: var(--bad); stroke-dasharray: 2 3; opacity: .7 }
svg .elabel { fill: var(--muted); font: 10px -apple-system, sans-serif; paint-order: stroke; stroke: var(--panel-2); stroke-width: 3 }
svg marker path { fill: var(--edge) }
.legend { display: flex; gap: 12px; flex-wrap: wrap; font-size: 12px; color: var(--muted); margin: 8px 0 }
.legend i { display: inline-block; width: 12px; height: 12px; border-radius: 3px; vertical-align: -2px; margin-right: 4px; border: 1px solid var(--line) }

.login { max-width: 380px; margin: 14vh auto; padding: 0 16px }
#toast { position: fixed; bottom: 16px; right: 16px; left: 16px; display: flex; flex-direction: column; align-items: flex-end; gap: 6px; pointer-events: none; z-index: 30 }
#toast div { background: var(--ink); color: var(--bg); padding: 9px 14px; border-radius: 8px; font-size: 14px; max-width: 420px; pointer-events: auto }
#toast div.bad { background: var(--bad); color: #fff }

@media (max-width: 860px) {
  .app { grid-template-columns: 1fr; grid-template-rows: auto 1fr; align-content: start }
  aside.side { padding: 10px 16px; position: sticky; top: 0; z-index: 10 }
  aside.side .collapsible { display: none } aside.side.open .collapsible { display: block }
  .side-head { display: flex; align-items: center; justify-content: space-between }
  .menu-toggle { display: inline-block; background: var(--side-hover); color: var(--side-ink); border: 1px solid var(--side-on); border-radius: 7px; padding: 6px 12px }
  main { padding: 16px }
  .chat, .grid2 { grid-template-columns: 1fr }
  .wstate { grid-template-columns: 1fr }
  .cols, .cols.wide-right { grid-template-columns: 1fr }
  header.top h2 { font-size: 19px }
}