:root {
  --bg: #f6f7f9; --panel: #ffffff; --ink: #1d2330; --muted: #5d6677; --line: #e2e5eb; --soft: #f0f2f5;
  --accent: #3b5bdb; --accent-ink: #ffffff; --accent-soft: #e8edfd;
  --ok: #1f7a4d; --ok-soft: #e3f4ea; --warn: #9a5b00; --warn-soft: #fdf1dc;
  --bad: #b42318; --bad-soft: #fde7e5; --idle: #6b7280; --idle-soft: #eef0f3;
  --slack: #4a154b; --mark: #fff3bf;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, Roboto, Helvetica, Arial, sans-serif;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0f1218; --panel: #171b23; --ink: #e6e9ef; --muted: #9aa3b2; --line: #2a303b; --soft: #1e232d;
    --accent: #7c95f5; --accent-ink: #0f1218; --accent-soft: #232b45;
    --ok: #5cc98f; --ok-soft: #173326; --warn: #f0b35a; --warn-soft: #3a2c14;
    --bad: #f28b82; --bad-soft: #3d1c1a; --idle: #9aa3b2; --idle-soft: #232831;
    --slack: #d9a7da; --mark: #5c4b12;
  }
}
:root[data-theme="dark"] {
  --bg: #0f1218; --panel: #171b23; --ink: #e6e9ef; --muted: #9aa3b2; --line: #2a303b; --soft: #1e232d;
  --accent: #7c95f5; --accent-ink: #0f1218; --accent-soft: #232b45;
  --ok: #5cc98f; --ok-soft: #173326; --warn: #f0b35a; --warn-soft: #3a2c14;
  --bad: #f28b82; --bad-soft: #3d1c1a; --idle: #9aa3b2; --idle-soft: #232831;
  --slack: #d9a7da; --mark: #5c4b12;
}
* { box-sizing: border-box; }
html, body { margin: 0; }
body { background: var(--bg); color: var(--ink); font: 14px/1.45 var(--sans); }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
code, .mono { font-family: var(--mono); font-size: 12.5px; }
.muted { color: var(--muted); }
.small { font-size: 12.5px; }
h1 { font-size: 19px; margin: 0 0 4px; font-weight: 650; }
h2 { font-size: 15px; margin: 0 0 10px; font-weight: 650; }
h3 { font-size: 13px; margin: 14px 0 6px; font-weight: 650; text-transform: uppercase; letter-spacing: .04em; color: var(--muted); }

.top { display: flex; justify-content: space-between; align-items: center; gap: 12px; padding: 10px 18px;
  background: var(--panel); border-bottom: 1px solid var(--line); }
.brand { display: flex; align-items: center; gap: 10px; }
.logo { width: 26px; height: 26px; border-radius: 6px; background: var(--accent);
  box-shadow: inset 0 0 0 7px var(--accent), inset 0 0 0 9px var(--accent-ink); }
.title { font-weight: 700; font-size: 15px; }
.sub { color: var(--muted); font-size: 12px; }
.top-right { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; justify-content: flex-end; }
.notice { padding: 7px 18px; font-size: 12.5px; color: var(--muted); background: var(--soft); border-bottom: 1px solid var(--line); }

.layout { display: grid; grid-template-columns: 236px minmax(0, 1fr); min-height: calc(100vh - 90px); }
.side { border-right: 1px solid var(--line); background: var(--panel); padding: 10px 8px 20px; display: flex; flex-direction: column; gap: 1px; }
.side-h { font-size: 11px; text-transform: uppercase; letter-spacing: .06em; color: var(--muted); margin: 12px 8px 4px; font-weight: 650; }
.side a, .side button.scn { display: flex; align-items: center; gap: 8px; padding: 6px 8px; border-radius: 6px; color: var(--ink);
  font: inherit; background: none; border: 0; text-align: left; cursor: pointer; width: 100%; }
.side a:hover, .side button.scn:hover { background: var(--soft); text-decoration: none; }
.side a.active, .side button.scn.active { background: var(--accent-soft); color: var(--accent); font-weight: 600; }
.scn .n { display: inline-grid; place-items: center; width: 20px; height: 20px; border-radius: 5px; font-size: 11.5px; font-weight: 700;
  background: var(--soft); color: var(--muted); flex: none; }
.scn.active .n { background: var(--accent); color: var(--accent-ink); }
.side-foot { margin-top: auto; padding: 14px 8px 0; display: flex; flex-direction: column; gap: 4px; font-size: 12.5px; }
.side-foot a { padding: 2px 0; }
.count { margin-left: auto; font-size: 11px; background: var(--warn-soft); color: var(--warn); border-radius: 10px; padding: 0 7px; font-weight: 700; }
.count:empty { display: none; }
.demo-tag { margin-left: auto; font-size: 9.5px; font-weight: 800; letter-spacing: .05em; color: var(--bad); border: 1px solid var(--bad); border-radius: 4px; padding: 0 4px; }

main { padding: 18px 22px 40px; min-width: 0; }
.loading { display: grid; place-items: center; gap: 10px; padding: 80px 0; text-align: center; }
.spinner { width: 26px; height: 26px; border: 3px solid var(--line); border-top-color: var(--accent); border-radius: 50%; animation: spin 0.9s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

.btn { font: inherit; font-size: 13px; padding: 6px 11px; border-radius: 6px; border: 1px solid var(--line); background: var(--panel); color: var(--ink); cursor: pointer; }
.btn:hover { border-color: var(--muted); }
.btn.primary { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); }
.btn.danger { color: var(--bad); }
.btn.sm { padding: 3px 8px; font-size: 12px; }
.btn:disabled { opacity: .45; cursor: default; }
.pill { font-size: 11.5px; padding: 3px 8px; border-radius: 999px; background: var(--soft); color: var(--muted); border: 1px solid var(--line); white-space: nowrap; }

.badge { display: inline-block; font-size: 11px; font-weight: 700; letter-spacing: .03em; padding: 1px 7px; border-radius: 4px; white-space: nowrap;
  background: var(--idle-soft); color: var(--idle); font-family: var(--mono); }
.badge.ok { background: var(--ok-soft); color: var(--ok); }
.badge.warn { background: var(--warn-soft); color: var(--warn); }
.badge.bad { background: var(--bad-soft); color: var(--bad); }
.badge.info { background: var(--accent-soft); color: var(--accent); }

.panel { background: var(--panel); border: 1px solid var(--line); border-radius: 10px; padding: 14px 16px; min-width: 0; }
.grid2 { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 6fr); gap: 16px; align-items: start; }
.grid-eq { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; align-items: start; }
.stack { display: flex; flex-direction: column; gap: 14px; }
.row { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.spread { display: flex; justify-content: space-between; gap: 10px; align-items: flex-start; flex-wrap: wrap; }
.head { margin-bottom: 14px; }
.presenter { margin-top: 6px; font-size: 13px; color: var(--muted); max-width: 900px; }
.presenter b { color: var(--ink); font-weight: 600; }

.flow { display: flex; gap: 0; flex-wrap: wrap; margin: 4px 0 16px; }
.flow .f { display: flex; align-items: center; font-size: 12px; }
.flow .f .chip { padding: 5px 10px; border-radius: 6px; border: 1px solid var(--line); background: var(--panel); display: flex; flex-direction: column; gap: 1px; min-width: 92px; }
.flow .f .chip b { font-size: 11px; color: var(--muted); font-weight: 600; text-transform: uppercase; letter-spacing: .04em; }
.flow .f .chip.ok { border-color: var(--ok); }
.flow .f .chip.warn { border-color: var(--warn); }
.flow .f .chip.bad { border-color: var(--bad); }
.flow .f .chip.idle { opacity: .55; }
.flow .arrow { color: var(--muted); padding: 0 5px; }

/* Slack-style surface */
.slack { border: 1px solid var(--line); border-radius: 10px; background: var(--panel); overflow: hidden; }
.slack-top { padding: 8px 14px; border-bottom: 1px solid var(--line); font-size: 12.5px; color: var(--muted); display: flex; justify-content: space-between; gap: 8px; }
.slack-msg { display: grid; grid-template-columns: 36px 1fr; gap: 10px; padding: 12px 14px; }
.avatar { width: 36px; height: 36px; border-radius: 7px; background: var(--slack); color: #fff; display: grid; place-items: center; font-weight: 800; font-size: 13px; }
.slack-name { font-weight: 700; } .slack-name .app { font-size: 10px; background: var(--soft); color: var(--muted); padding: 0 4px; border-radius: 3px; margin-left: 5px; font-weight: 700; }
.blk { border-left: 3px solid var(--accent); padding: 4px 0 4px 12px; margin-top: 8px; display: flex; flex-direction: column; gap: 9px; }
.blk .hd { font-weight: 700; font-size: 15px; }
.fld b { display: block; font-size: 11px; text-transform: uppercase; letter-spacing: .05em; color: var(--muted); margin-bottom: 1px; }
.fld ul { margin: 2px 0 0; padding-left: 18px; }
.opener { background: var(--soft); border-radius: 6px; padding: 7px 10px; font-style: italic; }
.controls { display: flex; gap: 6px; flex-wrap: wrap; margin-top: 4px; position: relative; }
.menu { position: absolute; top: 34px; right: 0; background: var(--panel); border: 1px solid var(--line); border-radius: 8px; box-shadow: 0 6px 24px rgba(0,0,0,.14); padding: 6px; z-index: 5; min-width: 220px; }
.menu button { display: block; width: 100%; text-align: left; border: 0; background: none; padding: 6px 8px; border-radius: 5px; font: inherit; color: var(--ink); cursor: pointer; }
.menu button:hover { background: var(--soft); }
.menu small { display: block; color: var(--muted); }
.result { margin-top: 12px; border-radius: 8px; padding: 10px 12px; background: var(--soft); font-size: 13px; }
.result ul { margin: 4px 0 0; padding-left: 18px; }

/* Trace */
.tabs { display: flex; gap: 2px; border-bottom: 1px solid var(--line); margin: -4px -16px 12px; padding: 0 12px; overflow-x: auto; }
.tabs button { font: inherit; font-size: 13px; padding: 8px 10px; background: none; border: 0; border-bottom: 2px solid transparent; color: var(--muted); cursor: pointer; white-space: nowrap; }
.tabs button.on { color: var(--ink); border-bottom-color: var(--accent); font-weight: 600; }
.trace { display: flex; flex-direction: column; }
.ts { display: grid; grid-template-columns: 18px 1fr; gap: 8px; }
.ts .rail { display: flex; flex-direction: column; align-items: center; }
.ts .dot { width: 10px; height: 10px; border-radius: 50%; background: var(--idle); margin-top: 5px; flex: none; }
.ts .dot.ok { background: var(--ok); } .ts .dot.warn { background: var(--warn); } .ts .dot.bad { background: var(--bad); }
.ts .line { flex: 1; width: 2px; background: var(--line); margin: 3px 0; }
.ts:last-child .line { display: none; }
.ts .body { padding-bottom: 12px; min-width: 0; }
.ts .lbl { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; font-weight: 600; }
.ts .det { color: var(--ink); margin-top: 2px; overflow-wrap: anywhere; }
.ts .rule { color: var(--muted); font-family: var(--mono); font-size: 11.5px; margin-top: 2px; overflow-wrap: anywhere; }
.ts.skipped { opacity: .45; }
details.more { margin-top: 6px; }
details.more summary { cursor: pointer; color: var(--accent); font-size: 12.5px; }

table { border-collapse: collapse; width: 100%; font-size: 12.5px; }
th, td { text-align: left; padding: 6px 8px; border-bottom: 1px solid var(--line); vertical-align: top; overflow-wrap: anywhere; }
th { font-size: 11px; text-transform: uppercase; letter-spacing: .04em; color: var(--muted); font-weight: 650; background: var(--soft); }
table.cand td, table.cand th { overflow-wrap: normal; white-space: nowrap; }
tr.click { cursor: pointer; } tr.click:hover td { background: var(--soft); }
.tablewrap { overflow-x: auto; }
pre.json { background: var(--soft); border-radius: 6px; padding: 10px; font: 11.5px/1.45 var(--mono); overflow: auto; max-height: 360px; margin: 6px 0 0; white-space: pre-wrap; overflow-wrap: anywhere; }
.yes { color: var(--ok); font-weight: 700; } .no { color: var(--muted); }

.insp details { border: 1px solid var(--line); border-radius: 8px; margin-bottom: 8px; background: var(--panel); }
.insp summary { padding: 8px 12px; cursor: pointer; font-weight: 600; display: flex; justify-content: space-between; gap: 8px; }
.insp summary span { font-weight: 400; color: var(--muted); font-size: 12.5px; text-align: right; }
.insp .in { padding: 0 12px 12px; }
.q { font-size: 12.5px; color: var(--muted); font-style: italic; margin: 0 0 6px; }

.claims { display: flex; flex-direction: column; gap: 8px; }
.claim { border: 1px solid var(--line); border-radius: 8px; padding: 10px 12px; cursor: pointer; background: var(--panel); text-align: left; font: inherit; color: inherit; width: 100%; }
.claim:hover { border-color: var(--muted); }
.claim.on { border-color: var(--accent); box-shadow: 0 0 0 1px var(--accent); }
.claim .meta { font-size: 12px; color: var(--muted); margin-top: 4px; }
.cite { border-left: 3px solid var(--line); padding: 6px 10px; margin-bottom: 10px; }
.cite.cur { border-left-color: var(--accent); }
.cite .src { font-size: 12px; color: var(--muted); display: flex; gap: 6px; flex-wrap: wrap; align-items: center; }
mark { background: var(--mark); color: inherit; border-radius: 2px; padding: 0 1px; }

.tiles { display: grid; grid-template-columns: repeat(auto-fill, minmax(165px, 1fr)); gap: 10px; margin-bottom: 16px; }
.tile { background: var(--panel); border: 1px solid var(--line); border-radius: 8px; padding: 10px 12px; }
.tile .v { font-size: 22px; font-weight: 700; font-variant-numeric: tabular-nums; }
.tile .k { font-size: 12px; color: var(--muted); }
.tile.alert .v { color: var(--warn); }

.inj { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 8px; }
.inj button { text-align: left; font: inherit; color: inherit; padding: 9px 12px; border: 1px solid var(--line); background: var(--panel); border-radius: 8px; cursor: pointer; }
.inj button:hover { border-color: var(--bad); }
.inj button b { display: block; font-family: var(--mono); font-size: 12.5px; }
.inj button span { color: var(--muted); font-size: 12.5px; }
.demo-banner { border: 1px dashed var(--bad); color: var(--bad); background: var(--bad-soft); border-radius: 8px; padding: 8px 12px; font-size: 13px; margin-bottom: 12px; font-weight: 600; }
.steps { counter-reset: s; list-style: none; padding: 0; margin: 0; }
.steps li { counter-increment: s; padding: 8px 0 8px 32px; position: relative; border-bottom: 1px solid var(--line); }
.steps li::before { content: counter(s); position: absolute; left: 0; top: 8px; width: 22px; height: 22px; border-radius: 50%; background: var(--soft); display: grid; place-items: center; font-size: 11.5px; font-weight: 700; }
.steps li .r { color: var(--muted); margin-top: 2px; font-family: var(--mono); font-size: 12px; overflow-wrap: anywhere; }

.ba .panel.before { border-color: var(--bad); }
.ba .panel.after { border-color: var(--ok); }
.rec { display: flex; gap: 8px; align-items: baseline; padding: 6px 0; border-bottom: 1px solid var(--line); font-size: 13px; flex-wrap: wrap; }
.rec .k { font-family: var(--mono); font-size: 12px; }
.strike { text-decoration: line-through; color: var(--muted); }

.arch img { max-width: 100%; background: #fff; border-radius: 8px; border: 1px solid var(--line); padding: 8px; }
.subtabs { display: flex; gap: 6px; flex-wrap: wrap; margin-bottom: 12px; }
.subtabs button { font: inherit; font-size: 12.5px; padding: 4px 10px; border-radius: 999px; border: 1px solid var(--line); background: var(--panel); color: var(--ink); cursor: pointer; }
.subtabs button.on { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); }
.empty { color: var(--muted); padding: 24px; text-align: center; border: 1px dashed var(--line); border-radius: 10px; }
.toast { position: fixed; bottom: 18px; right: 18px; background: var(--ink); color: var(--bg); padding: 9px 14px; border-radius: 8px; font-size: 13px; max-width: 420px; z-index: 20; }
.err { color: var(--bad); }

@media (max-width: 980px) {
  .grid2, .grid-eq { grid-template-columns: 1fr; }
}
@media (max-width: 760px) {
  .layout { grid-template-columns: 1fr; }
  .side { border-right: 0; border-bottom: 1px solid var(--line); flex-direction: row; flex-wrap: wrap; gap: 4px; padding: 8px 16px; }
  .side-h { width: 100%; margin: 6px 0 2px; }
  .side a, .side button.scn { width: auto; padding: 5px 8px; border: 1px solid var(--line); }
  .side-foot { display: none; }
  main { padding: 14px 16px 30px; }
  .top { padding: 10px 16px; } .notice { padding: 7px 16px; }
  .sub { display: none; }
}