:root {
  --bg: #e9edf0;        /* switchroom concrete */
  --panel: #ffffff;
  --ink: #1d2a33;
  --muted: #5b6b76;
  --line: #c9d2d8;
  --accent: #1f5f8b;    /* substation blue */
  --ok: #2f7a4b;
  --warn: #a86400;
  --fault: #a23a2a;
  --radius: 6px;
  font-family: "Segoe UI", "Helvetica Neue", Arial, sans-serif;
  font-size: 15px;
  color: var(--ink);
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); line-height: 1.45; }
h1 { font-size: 1.6rem; margin: 0 0 .2rem; letter-spacing: -.01em; }
h2 { font-size: 1.05rem; margin: 0 0 1rem; }
.muted, .hint { color: var(--muted); }
.hint { font-weight: 400; font-size: .85rem; }
.small { font-size: .85rem; }
.mono, code { font-family: ui-monospace, Consolas, monospace; }

label { display: block; font-weight: 600; font-size: .9rem; margin-bottom: .9rem; }
input, select {
  display: block; width: 100%; margin-top: .3rem; padding: .55rem .6rem;
  font: inherit; font-weight: 400; color: var(--ink);
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
}
table input, table select { margin: 0; padding: .35rem .45rem; }
input:focus-visible, select:focus-visible, button:focus-visible, summary:focus-visible {
  outline: 2px solid var(--accent); outline-offset: 2px;
}
label.check { display: flex; gap: .5rem; align-items: center; font-weight: 400; }
label.check input, td input[type=checkbox] { width: auto; margin: 0; }
.row { display: flex; gap: .75rem; }
.row.wrap { flex-wrap: wrap; }
.row .narrow { flex: 0 0 7rem; }
.row .grow { flex: 1 1 14rem; }

button {
  font: inherit; padding: .55rem 1rem; border-radius: var(--radius); cursor: pointer;
  border: 1px solid var(--line); background: #fff; color: var(--ink);
}
button.primary { background: var(--accent); border-color: var(--accent); color: #fff; }
button.link { border: none; background: none; color: var(--accent); padding: .55rem .25rem; }
button.small { padding: .3rem .7rem; }
button:disabled { opacity: .6; cursor: progress; }

.login { min-height: 100vh; display: grid; place-items: center; padding: 1rem; }
.login-card { width: min(360px, 100%); background: var(--panel); padding: 2rem;
  border: 1px solid var(--line); border-radius: var(--radius); }
.login-card .muted { margin: 0 0 1.5rem; }
.login-card button { width: 100%; margin-top: .5rem; }
.alert { background: #f6e4e1; color: var(--fault); padding: .6rem .75rem; border-radius: var(--radius); white-space: pre-wrap; }

.topbar { display: flex; align-items: stretch; gap: 2rem; padding: 0 1.5rem; background: var(--ink); color: #fff; }
.brand { font-weight: 700; align-self: center; }
.tabs { display: flex; gap: .25rem; }
.tabs button { background: none; border: none; border-radius: 0; color: #b9c6cf;
  padding: .9rem 1rem; border-bottom: 3px solid transparent; }
.tabs button[aria-selected="true"] { color: #fff; border-bottom-color: #6fb0dc; }
.who { margin-left: auto; display: flex; align-items: center; gap: .5rem; color: #b9c6cf; }
.who .link { color: #fff; }
main { padding: 1.5rem; max-width: 1200px; margin: 0 auto; display: grid; gap: 1.25rem; }
section { display: grid; gap: 1.25rem; }
section[hidden] { display: none; }
.panel { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 1.25rem 1.5rem; }
.grid { display: grid; grid-template-columns: minmax(0, 3fr) minmax(0, 2fr); gap: 1.25rem; align-items: start; }
@media (max-width: 800px) { .grid { grid-template-columns: 1fr; } .topbar { gap: 1rem; padding: 0 .75rem; } main { padding: .75rem; } }
.actions { display: flex; gap: .5rem; flex-wrap: wrap; align-items: center; margin-top: 1rem; }
.scroll { overflow-x: auto; }

/* annunciator lamp: the one signature element, reused for connection and run state */
.annunciator { display: flex; gap: .75rem; align-items: center; padding: .75rem .9rem;
  border: 1px solid var(--line); border-radius: var(--radius); background: #f4f6f8; }
.lamp { display: inline-block; flex: 0 0 14px; width: 14px; height: 14px; border-radius: 50%; background: #aab5bd;
  box-shadow: inset 0 -2px 3px rgba(0,0,0,.25); vertical-align: -2px; }
.lamp.sm { width: 10px; height: 10px; flex-basis: 10px; margin-right: .4rem; vertical-align: 0; }
[data-state="ok"] .lamp, .lamp.ok, .lamp.succeeded { background: #3fae68; box-shadow: 0 0 6px #3fae68; }
[data-state="fail"] .lamp, .lamp.fail, .lamp.failed { background: #d9533f; box-shadow: 0 0 6px #d9533f; }
[data-state="busy"] .lamp, .lamp.running, .lamp.queued { background: #e0a030; animation: blink .8s steps(2) infinite; }
.lamp.skipped, .lamp.pending { background: #d3d9de; }
.annunciator[data-state="ok"] { border-color: var(--ok); }
.annunciator[data-state="fail"] { border-color: var(--fault); }
@keyframes blink { 50% { opacity: .3; } }
@media (prefers-reduced-motion: reduce) { .lamp { animation: none !important; } }

.list { list-style: none; padding: 0; margin: 0; }
.list li { display: flex; align-items: center; gap: .6rem; padding: .6rem 0; border-top: 1px solid var(--line); }
.list li:first-child { border-top: none; }
.list .meta { font-size: .85rem; color: var(--muted); }
.list .grow { flex: 1; min-width: 0; overflow-wrap: anywhere; }
.table { width: 100%; border-collapse: collapse; }
.table th, .table td { text-align: left; padding: .5rem; border-bottom: 1px solid var(--line); vertical-align: middle; }
.table th { font-size: .85rem; color: var(--muted); font-weight: 600; }
.table td.num { text-align: right; font-variant-numeric: tabular-nums; }
.tag { font-size: .8rem; padding: .1rem .45rem; border-radius: 3px; background: #e3eaf0; color: var(--accent); }
.tag.live { background: #f6e9d6; color: var(--warn); }
.msg.error { color: var(--fault); }

dialog { border: 1px solid var(--line); border-radius: var(--radius); padding: 1.25rem 1.5rem;
  width: min(900px, 95vw); max-height: 90vh; }
dialog::backdrop { background: rgba(29, 42, 51, .45); }
.dialog-head { display: flex; justify-content: space-between; align-items: baseline; }
.log { background: #1d2a33; color: #dfe7ec; padding: .75rem; border-radius: var(--radius);
  max-height: 45vh; overflow: auto; font-size: .8rem; white-space: pre-wrap; }