:root {
  --bg: #0e1116;
  --panel: #151a21;
  --line: #232b36;
  --fg: #d6dde7;
  --dim: #7c8798;
  --accent: #4d8dff;
  --ok: #2e9e6b;
  --warn: #c98a1e;
  --err: #d9534f;
}
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  background: var(--bg);
  color: var(--fg);
  font: 13px/1.5 -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, system-ui, sans-serif;
  -webkit-font-smoothing: antialiased;
}
.mono { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 12px; }
.dim { color: var(--dim); }

header.top {
  display: flex; align-items: center; gap: 24px;
  padding: 12px 20px; border-bottom: 1px solid var(--line);
  position: sticky; top: 0; background: var(--bg); z-index: 5;
}
.brand { font-weight: 700; letter-spacing: -0.02em; color: var(--fg); text-decoration: none; font-size: 15px; }
.brand span { color: var(--accent); }
header.top nav { display: flex; gap: 4px; }
header.top nav a {
  color: var(--dim); text-decoration: none; padding: 5px 10px; border-radius: 6px; font-size: 12.5px;
}
header.top nav a:hover { color: var(--fg); background: var(--panel); }
header.top nav a.on { color: var(--fg); background: var(--panel); }
.role { margin-left: auto; color: var(--dim); font-size: 11.5px; }

main { padding: 18px 20px 60px; max-width: 1280px; }
h2 { font-size: 12px; text-transform: uppercase; letter-spacing: 0.06em; color: var(--dim); margin: 0 0 12px; font-weight: 600; }
h2 .count { color: var(--accent); }

.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 10px; margin-bottom: 18px; }
.card { background: var(--panel); border: 1px solid var(--line); border-radius: 9px; padding: 12px 14px; }
.card .k { font-size: 10.5px; text-transform: uppercase; letter-spacing: 0.05em; color: var(--dim); }
.card .v { font-size: 22px; font-weight: 600; margin: 3px 0 1px; font-variant-numeric: tabular-nums; }
.card .sub { font-size: 11px; color: var(--dim); }

.split { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
@media (max-width: 900px) { .split { grid-template-columns: 1fr; } }

.panel { background: var(--panel); border: 1px solid var(--line); border-radius: 10px; padding: 14px; overflow: hidden; }
.panel table { width: 100%; border-collapse: collapse; }
.panel th {
  text-align: left; font-size: 10.5px; text-transform: uppercase; letter-spacing: 0.05em;
  color: var(--dim); font-weight: 600; padding: 6px 8px; border-bottom: 1px solid var(--line);
}
.panel td { padding: 6px 8px; border-bottom: 1px solid var(--line); vertical-align: top; }
.panel tr:last-child td { border-bottom: 0; }
.msg { max-width: 460px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.empty { color: var(--dim); text-align: center; padding: 14px; }
.err { color: var(--err); }

.sev { font-size: 10px; font-weight: 700; letter-spacing: 0.04em; padding: 1px 6px; border-radius: 4px; border: 1px solid; }
.sev-info { color: var(--accent); border-color: color-mix(in srgb, var(--accent) 45%, transparent); }
.sev-warn { color: var(--warn); border-color: color-mix(in srgb, var(--warn) 45%, transparent); }
.sev-error { color: var(--err); border-color: color-mix(in srgb, var(--err) 45%, transparent); }
.sev-debug { color: var(--dim); border-color: var(--line); }

.pill { font-size: 10.5px; padding: 1px 7px; border-radius: 9px; border: 1px solid var(--line); color: var(--dim); }

form.row-form, form.filters { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 10px; }
form input, form select, form button {
  background: var(--bg); color: var(--fg); border: 1px solid var(--line);
  border-radius: 6px; padding: 5px 8px; font-size: 12.5px; font-family: inherit;
}
form input:focus, form select:focus { outline: none; border-color: var(--accent); }
form button { cursor: pointer; color: var(--accent); border-color: color-mix(in srgb, var(--accent) 40%, var(--line)); }
form button:hover { background: color-mix(in srgb, var(--accent) 12%, transparent); }

/* ------------------------------------------------------------------- chat */
.chat-panel { display: flex; flex-direction: column; min-height: 62vh; }
.chat-log {
  flex: 1; overflow-y: auto; max-height: 58vh; padding-right: 6px;
  display: flex; flex-direction: column; gap: 10px;
}
.chat-empty { color: var(--dim); padding: 18px 4px; }
.bubble { max-width: 82%; border-radius: 10px; padding: 8px 11px; border: 1px solid var(--line); }
.bubble .who {
  font-size: 10px; text-transform: uppercase; letter-spacing: 0.06em;
  color: var(--dim); margin-bottom: 3px;
}
.bubble .text { white-space: pre-wrap; word-break: break-word; }
.from-user { align-self: flex-end; background: color-mix(in srgb, var(--accent) 14%, transparent); border-color: color-mix(in srgb, var(--accent) 35%, var(--line)); }
.from-agent { align-self: flex-start; background: var(--bg); }
.composer { display: flex; gap: 8px; margin-top: 12px; }
.composer input { flex: 1; }
.thinking { margin-top: 8px; font-size: 11.5px; color: var(--dim); }
.thinking.htmx-indicator { opacity: 0; transition: opacity 200ms; }
.thinking.htmx-request { opacity: 1; }

/* ------------------------------------------------- rendered markdown in chat */
.text.md { white-space: normal; }
.text.md > *:first-child { margin-top: 0; }
.text.md > *:last-child { margin-bottom: 0; }
.text.md p { margin: 0 0 8px; }
.text.md table {
  border-collapse: collapse; margin: 8px 0; font-size: 12.5px;
  font-variant-numeric: tabular-nums; width: auto; min-width: 40%;
}
.text.md th {
  text-align: left; font-size: 10.5px; text-transform: uppercase; letter-spacing: 0.05em;
  color: var(--dim); font-weight: 600; padding: 6px 10px; border-bottom: 1px solid var(--line);
  background: color-mix(in srgb, var(--accent) 7%, transparent);
}
.text.md td { padding: 5px 10px; border-bottom: 1px solid var(--line); }
.text.md tr:last-child td { border-bottom: 0; }
.text.md code {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 11.5px;
  background: var(--bg); border: 1px solid var(--line); border-radius: 4px; padding: 1px 4px;
}
.text.md pre {
  background: var(--bg); border: 1px solid var(--line); border-radius: 6px;
  padding: 8px 10px; overflow-x: auto; margin: 8px 0;
}
.text.md pre code { border: 0; background: none; padding: 0; }
.text.md ul, .text.md ol { margin: 6px 0 8px; padding-left: 20px; }
.text.md a { color: var(--accent); }
.text.md hr { border: 0; border-top: 1px solid var(--line); margin: 10px 0; }

/* ------------------------------------------------------- inline SVG charts */
svg.chart { max-width: 100%; overflow: visible; margin: 10px 0 4px; }
svg.chart .ct { fill: var(--fg); font-size: 12px; font-weight: 600; }
svg.chart .cl { fill: var(--muted, var(--dim)); font-size: 11px; }
svg.chart .clx { fill: var(--muted, var(--dim)); font-size: 10px; text-anchor: middle; }
svg.chart .cv { fill: var(--fg); font-size: 11px; font-variant-numeric: tabular-nums; }
svg.chart .cvx { fill: var(--dim); font-size: 10px; text-anchor: middle; }
svg.chart .cb { fill: var(--accent); opacity: 0.85; }
svg.chart .cax { stroke: var(--line); stroke-width: 1; }
svg.chart .cline { fill: none; stroke: var(--accent); stroke-width: 2; }
svg.chart .cdot { fill: var(--accent); }
.text.md pre.chart-error { color: var(--err); border-color: var(--err); }

/* -------------------------------------------- sandboxed agent-authored HTML */
.artifact { margin: 10px 0; border: 1px solid var(--line); border-radius: 8px; overflow: hidden; background: var(--bg); }
.artifact-frame { display: block; width: 100%; height: 360px; border: 0; }
.artifact-frame { min-height: 120px; transition: height 120ms ease; }

/* ------------------------------------------------------------------- auth */
.auth-body { display: flex; align-items: center; justify-content: center; min-height: 100vh; }
.auth-wrap { width: 100%; display: flex; justify-content: center; padding: 20px; }
.auth-card {
  background: var(--panel); border: 1px solid var(--line); border-radius: 12px;
  padding: 26px 24px; width: 100%; max-width: 380px; text-align: center;
}
.auth-brand { font-weight: 700; font-size: 18px; letter-spacing: -0.02em; margin-bottom: 14px; }
.auth-brand span { color: var(--accent); }
.auth-sub { color: var(--dim); font-size: 12.5px; margin: 0 0 14px; }
.auth-err {
  color: var(--err); border: 1px solid color-mix(in srgb, var(--err) 40%, transparent);
  background: color-mix(in srgb, var(--err) 10%, transparent);
  border-radius: 7px; padding: 8px 10px; font-size: 12px; margin-bottom: 12px;
}
.auth-note { color: var(--dim); font-size: 11px; margin-top: 14px; }
.auth-cmd {
  background: var(--bg); border: 1px solid var(--line); border-radius: 6px;
  padding: 8px; font-size: 11px; text-align: left; overflow-x: auto;
  font-family: ui-monospace, Menlo, monospace; margin: 8px 0 14px;
}
.btn-gh {
  display: inline-flex; align-items: center; justify-content: center; gap: 9px;
  width: 100%; padding: 9px 14px; border-radius: 8px; font-size: 13px; font-weight: 600;
  background: var(--fg); color: var(--bg); text-decoration: none; border: 0;
}
.btn-gh:hover { opacity: 0.9; }
.whoami { margin-left: auto; display: flex; align-items: center; gap: 8px; font-size: 12px; }
.whoami .avatar { width: 20px; height: 20px; border-radius: 50%; border: 1px solid var(--line); }
.whoami a { color: var(--dim); text-decoration: none; font-size: 11.5px; }
.whoami a:hover { color: var(--fg); }
.pill-admin { color: var(--accent); border-color: color-mix(in srgb, var(--accent) 45%, transparent); }
.hint { color: var(--dim); font-size: 11.5px; margin: 0 0 10px; }
.hint code { background: var(--bg); border: 1px solid var(--line); border-radius: 4px; padding: 1px 4px; font-size: 11px; }

.pill-master { color: var(--accent); border-color: color-mix(in srgb, var(--accent) 55%, transparent); background: color-mix(in srgb, var(--accent) 10%, transparent); }
.pill-admin { color: #9b7bff; border-color: #9b7bff66; }
.pill-bot { color: var(--warn); border-color: color-mix(in srgb, var(--warn) 45%, transparent); }

/* ------------------------------------------------- chat app with a thread rail */
body.chat-app { height: 100vh; overflow: hidden; display: flex; flex-direction: column; }
.shell { display: grid; grid-template-columns: 260px 1fr; flex: 1; min-height: 0; }
.rail {
  border-right: 1px solid var(--line); padding: 12px 10px; overflow-y: auto;
  background: color-mix(in srgb, var(--panel) 60%, var(--bg)); display: flex; flex-direction: column; gap: 10px;
}
.new-chat {
  width: 100%; padding: 8px 10px; border-radius: 8px; cursor: pointer; font: inherit;
  background: transparent; color: var(--fg); border: 1px dashed var(--line); text-align: left;
}
.new-chat:hover { border-color: var(--accent); color: var(--accent); }
.threads { display: flex; flex-direction: column; gap: 2px; }
.thread { display: block; padding: 7px 9px; border-radius: 7px; text-decoration: none; color: var(--fg); }
.thread:hover { background: var(--panel); }
.thread.on { background: color-mix(in srgb, var(--accent) 14%, transparent); }
.thread .t-title { display: block; font-size: 12.5px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.thread .t-when { display: block; font-size: 10px; color: var(--dim); margin-top: 1px; }
.rail-empty { color: var(--dim); font-size: 11.5px; padding: 8px; }
.thread-main { display: flex; flex-direction: column; min-height: 0; padding: 14px 18px 12px; }
.thread-main .chat-log { flex: 1; max-height: none; }
@media (max-width: 760px) {
  .shell { grid-template-columns: 1fr; }
  .rail { display: none; }
}

.thread-row { display: flex; align-items: center; gap: 4px; }
.thread-row .thread { flex: 1; min-width: 0; }
.thread-act {
  opacity: 0; background: none; border: 0; color: var(--dim); cursor: pointer;
  font-size: 12px; padding: 3px 5px; border-radius: 5px; font-family: inherit;
}
.thread-row:hover .thread-act { opacity: 1; }
.thread-act:hover { color: var(--accent); background: var(--panel); }
.arch-mark { font-size: 9px; text-transform: uppercase; letter-spacing: .05em; color: var(--dim); }
.rail-label { font-size: 9.5px; text-transform: uppercase; letter-spacing: .06em; color: var(--dim); padding: 4px 9px; }
.rail-foot { margin-top: auto; padding-top: 8px; border-top: 1px solid var(--line); }
.rail-foot a { color: var(--dim); font-size: 11.5px; text-decoration: none; }
.rail-foot a:hover { color: var(--accent); }
.thread-bar { display: flex; align-items: center; gap: 10px; padding-bottom: 8px; border-bottom: 1px solid var(--line); margin-bottom: 10px; }
.thread-name { font-size: 12.5px; font-weight: 600; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.thread-bar form { margin-left: auto; }
.ghost-btn {
  background: transparent; border: 1px solid var(--line); color: var(--dim);
  border-radius: 6px; padding: 3px 9px; font-size: 11px; cursor: pointer; font-family: inherit;
}
.ghost-btn:hover { color: var(--fg); border-color: var(--accent); }