/* WerkMentor stack preview: a working tool, not a marketing page. */
:root {
  --ink: #17181B;
  --muted: #5d636b;
  --line: #dde1e6;
  --bg: #f4f5f7;
  --surface: #ffffff;
  --red: #E2401C;
  --carmine: #B5122E;
  --ok: #1f6f47;
  --warn: #8a5300;
  --code: #eef0f3;
  --mono: ui-monospace, "Cascadia Mono", Consolas, "Liberation Mono", monospace;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}
@media (prefers-color-scheme: dark) {
  :root {
    --ink: #e8eaed; --muted: #9aa1a9; --line: #2c3137; --bg: #111316; --surface: #191c20;
    --red: #ff6a45; --carmine: #ff5c78; --ok: #5cc28a; --warn: #e3a63c; --code: #22262b;
  }
}
* { box-sizing: border-box; }
html, body { margin: 0; }
body { background: var(--bg); color: var(--ink); font: 15px/1.5 var(--sans); }
a { color: var(--carmine); }
code, pre { font-family: var(--mono); font-size: 12.5px; }
button, select, textarea, input { font: inherit; color: inherit; }
.boot { padding: 24px; color: var(--muted); }

header.top { background: var(--ink); color: #fff; padding: 10px 16px; display: flex; flex-wrap: wrap; gap: 10px 18px; align-items: center; }
@media (prefers-color-scheme: dark) { header.top { background: #000; } }
.brand { font-weight: 800; letter-spacing: .01em; font-size: 18px; display: flex; align-items: center; gap: 8px; }
.brand i { width: 10px; height: 10px; border-radius: 50%; background: #E2401C; display: inline-block; }
.brand small { font-weight: 500; opacity: .7; font-size: 13px; }
nav.stacks { display: flex; gap: 4px; flex-wrap: wrap; }
nav.stacks a { color: #fff; text-decoration: none; padding: 4px 10px; border-radius: 4px; border: 1px solid rgba(255,255,255,.25); font-size: 13px; }
nav.stacks a.on { background: #E2401C; border-color: #E2401C; }
nav.tabs { margin-left: auto; display: flex; gap: 4px; }
nav.tabs button { background: none; border: 0; color: #fff; opacity: .7; padding: 4px 10px; cursor: pointer; border-bottom: 2px solid transparent; }
nav.tabs button.on { opacity: 1; border-bottom-color: #E2401C; }

main { max-width: 1080px; margin: 0 auto; padding: 18px 16px 120px; }
section[hidden] { display: none; }

.login { max-width: 360px; margin: 12vh auto; background: var(--surface); border: 1px solid var(--line); padding: 22px; border-radius: 6px; }
.login h1 { margin: 0 0 6px; font-size: 20px; }
.login p { color: var(--muted); margin: 0 0 14px; font-size: 14px; }
.login input { width: 100%; padding: 9px 10px; border: 1px solid var(--line); border-radius: 4px; background: var(--surface); }
.login .err { color: var(--carmine); min-height: 1.4em; font-size: 14px; margin-top: 8px; }

.btn { background: var(--carmine); color: #fff; border: 0; border-radius: 4px; padding: 8px 14px; cursor: pointer; font-weight: 600; }
.btn:disabled { opacity: .5; cursor: default; }
.btn.ghost { background: none; color: var(--ink); border: 1px solid var(--line); font-weight: 500; }
.login .btn { margin-top: 10px; width: 100%; }

.intro { color: var(--muted); font-size: 14px; margin: 0 0 14px; }
.log { display: grid; gap: 14px; }
.turn { background: var(--surface); border: 1px solid var(--line); border-radius: 6px; overflow: hidden; }
.turn .q { padding: 10px 14px; background: var(--code); display: flex; gap: 10px; align-items: baseline; flex-wrap: wrap; }
.turn .q b { font-weight: 600; }
.turn .q .meta { color: var(--muted); font-size: 12.5px; margin-left: auto; }
.turn .q img { max-height: 70px; border-radius: 3px; border: 1px solid var(--line); }
.turn .a { padding: 10px 14px; }
.turn .a p { margin: 0 0 8px; }
.turn .a ol, .turn .a ul { margin: 0 0 8px; padding-left: 22px; }
.turn .a h4 { margin: 10px 0 4px; font-size: 15px; }
.turn .a.live { white-space: pre-wrap; color: var(--muted); }
.turn .a.err { color: var(--carmine); }
.cite { font-family: var(--mono); font-size: 11.5px; background: var(--code); border: 1px solid var(--line); border-radius: 3px; padding: 0 4px; white-space: nowrap; }
.turn .status { padding: 6px 14px; font-size: 13px; color: var(--muted); border-top: 1px solid var(--line); display: flex; gap: 12px; flex-wrap: wrap; }
.turn .status .spin::before { content: ""; display: inline-block; width: 8px; height: 8px; border-radius: 50%; background: var(--red); margin-right: 6px; animation: pulse 1s infinite alternate; }
@keyframes pulse { from { opacity: .25; } to { opacity: 1; } }
@media (prefers-reduced-motion: reduce) { .turn .status .spin::before { animation: none; } }

details.trace { border-top: 1px solid var(--line); }
details.trace > summary { cursor: pointer; padding: 6px 14px; font-size: 13px; color: var(--muted); }
ol.ev { list-style: none; margin: 0; padding: 0 14px 10px; font-size: 13px; display: grid; gap: 4px; }
ol.ev li { display: grid; grid-template-columns: 64px minmax(0, 1fr); gap: 8px; }
ol.ev .t { color: var(--muted); font-family: var(--mono); font-size: 11.5px; padding-top: 2px; }
ol.ev .k { font-weight: 600; }
ol.ev .warn { color: var(--warn); }
ol.ev .bad { color: var(--carmine); }
ol.ev .num { font-family: var(--mono); font-size: 12px; color: var(--muted); }
ol.ev details summary { cursor: pointer; }
ol.ev pre { background: var(--code); padding: 8px; margin: 4px 0 0; white-space: pre-wrap; overflow-wrap: anywhere; max-height: 320px; overflow: auto; border-radius: 3px; }

.composer { position: fixed; left: 0; right: 0; bottom: 0; background: var(--surface); border-top: 1px solid var(--line); padding: 10px 16px; }
.composer .inner { max-width: 1080px; margin: 0 auto; display: grid; gap: 8px; }
.composer .row { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.composer textarea { flex: 1 1 320px; min-height: 42px; max-height: 160px; resize: vertical; padding: 8px 10px; border: 1px solid var(--line); border-radius: 4px; background: var(--surface); }
.composer select { padding: 7px 8px; border: 1px solid var(--line); border-radius: 4px; background: var(--surface); max-width: 100%; }
.composer label.file { font-size: 13px; color: var(--muted); cursor: pointer; border: 1px dashed var(--line); padding: 6px 10px; border-radius: 4px; }
.composer label.file input { display: none; }
.chips { display: flex; gap: 6px; flex-wrap: wrap; }
.chips button { background: var(--code); border: 1px solid var(--line); border-radius: 14px; padding: 3px 10px; font-size: 12.5px; cursor: pointer; color: var(--ink); }

table.turns { width: 100%; border-collapse: collapse; background: var(--surface); border: 1px solid var(--line); font-size: 13px; }
.tablewrap { overflow-x: auto; }
table.turns th, table.turns td { text-align: left; padding: 6px 8px; border-bottom: 1px solid var(--line); white-space: nowrap; }
table.turns th { color: var(--muted); font-weight: 600; background: var(--code); }
table.turns td.num { text-align: right; font-family: var(--mono); font-size: 12px; }
table.turns tbody tr { cursor: pointer; }
table.turns tbody tr:hover { background: var(--code); }
table.turns td.q { white-space: normal; min-width: 220px; }
.ok { color: var(--ok); } .bad { color: var(--carmine); } .warn { color: var(--warn); }

dl.facts { display: grid; grid-template-columns: max-content minmax(0, 1fr); gap: 4px 16px; background: var(--surface); border: 1px solid var(--line); padding: 12px 14px; border-radius: 6px; }
dl.facts dt { color: var(--muted); }
dl.facts dd { margin: 0; font-family: var(--mono); font-size: 13px; overflow-wrap: anywhere; }
h2 { font-size: 18px; margin: 22px 0 10px; }
h2:first-child { margin-top: 0; }
table.cmp { border-collapse: collapse; background: var(--surface); border: 1px solid var(--line); font-size: 13.5px; width: 100%; }
table.cmp th, table.cmp td { text-align: left; vertical-align: top; padding: 7px 10px; border-bottom: 1px solid var(--line); }
table.cmp th { background: var(--code); color: var(--muted); font-weight: 600; }
table.cmp td:first-child { font-weight: 600; white-space: nowrap; }
table.cmp td.here { background: color-mix(in srgb, var(--red) 8%, transparent); }
.note { color: var(--muted); font-size: 13px; }

@media (max-width: 640px) {
  nav.tabs { margin-left: 0; }
  ol.ev li { grid-template-columns: 1fr; gap: 0; }
  main { padding-bottom: 210px; }
}