/* SentraCaptions control center. Light and dark themes share every rule; only the variables
   change. The theme follows the system unless the user picks one (data-theme on <html>). */
:root {
  --bg: #f4f6fa; --panel: #fff; --panel-2: #f8f9fc; --ink: #0a1a33; --body: #26354f; --muted: #5b6a84;
  --line: #e2e6ee; --line-2: #cfd6e2; --blue: #1b47c2; --blue-2: #163a9f; --blue-bg: #eef2fc; --on-blue: #fff;
  --green: #166534; --green-bg: #e7f6ec; --amber: #a16207; --amber-bg: #fef6e0; --red: #b91c1c; --red-bg: #fdecec;
  --gold: #f2b632; --side: #0a1a33; --side-ink: #c3cde0; --side-active: #16294d;
  --focus: #f59e0b; --shadow: 0 1px 2px rgb(10 26 51 / .06), 0 2px 8px rgb(10 26 51 / .05);
  --mono: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0b1220; --panel: #111a2c; --panel-2: #0e1626; --ink: #eef2f9; --body: #c9d3e5; --muted: #8f9db6;
    --line: #1f2b42; --line-2: #2b3a57; --blue: #7aa2ff; --blue-2: #9bb8ff; --blue-bg: #17244a; --on-blue: #0b1220;
    --green: #4ade80; --green-bg: #11291c; --amber: #fbbf24; --amber-bg: #2c2210; --red: #f87171; --red-bg: #321416;
    --side: #070c16; --side-ink: #aab6cc; --side-active: #15213a; --shadow: 0 1px 2px rgb(0 0 0 / .4);
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: #0b1220; --panel: #111a2c; --panel-2: #0e1626; --ink: #eef2f9; --body: #c9d3e5; --muted: #8f9db6;
  --line: #1f2b42; --line-2: #2b3a57; --blue: #7aa2ff; --blue-2: #9bb8ff; --blue-bg: #17244a; --on-blue: #0b1220;
  --green: #4ade80; --green-bg: #11291c; --amber: #fbbf24; --amber-bg: #2c2210; --red: #f87171; --red-bg: #321416;
  --side: #070c16; --side-ink: #aab6cc; --side-active: #15213a; --shadow: 0 1px 2px rgb(0 0 0 / .4);
  color-scheme: dark;
}

* { box-sizing: border-box; }
/* "hidden" always hides, even on elements whose class sets a display (buttons, the video). */
[hidden] { display: none !important; }
html, body { margin: 0; height: 100%; }
body { font: 14px/1.5 Inter, system-ui, -apple-system, "Segoe UI", sans-serif; background: var(--bg); color: var(--body); -webkit-font-smoothing: antialiased; }
h1, h2, h3 { color: var(--ink); margin: 0; letter-spacing: -.01em; }
h1 { font-size: 1.45rem; font-weight: 650; }
h2 { font-size: 1.02rem; font-weight: 600; }
h3 { font-size: .92rem; font-weight: 600; }
a { color: var(--blue); }
code, .mono { font-family: var(--mono); font-size: .86em; }
:focus-visible { outline: 3px solid var(--focus); outline-offset: 2px; border-radius: 4px; }
.visually-hidden { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.skip { position: absolute; left: .5rem; top: -3rem; background: var(--gold); color: #0a1a33; padding: .5rem .8rem; border-radius: 6px; z-index: 99; font-weight: 600; }
.skip:focus { top: .5rem; }

/* Layout: sidebar + main */
.shell { display: grid; grid-template-columns: 232px 1fr; min-height: 100vh; }
.side { background: var(--side); color: var(--side-ink); display: flex; flex-direction: column; padding: 1rem .75rem; position: sticky; top: 0; height: 100vh; }
.brand { display: flex; align-items: center; gap: .6rem; padding: .35rem .5rem 1.2rem; color: #fff; text-decoration: none; }
.brand img { width: 30px; height: 30px; }
.brand b { display: block; font-size: 1rem; font-weight: 650; }
.brand small { display: block; font: 600 .6rem var(--mono); letter-spacing: .14em; text-transform: uppercase; color: var(--gold); }
.side nav ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 2px; }
.side nav a { display: flex; align-items: center; gap: .65rem; padding: .55rem .7rem; border-radius: 7px; color: var(--side-ink); text-decoration: none; font-weight: 500; }
.side nav a:hover { background: var(--side-active); color: #fff; }
.side nav a[aria-current="page"] { background: var(--side-active); color: #fff; box-shadow: inset 3px 0 0 var(--gold); }
.side nav svg { width: 18px; height: 18px; flex: none; opacity: .9; }
.side nav .badge { margin-left: auto; }
.side .foot { margin-top: auto; padding: .8rem .5rem 0; border-top: 1px solid rgb(255 255 255 / .08); display: grid; gap: .6rem; font-size: .8rem; }
.side .foot .who { color: #fff; word-break: break-all; }
main { min-width: 0; }
.top { display: flex; align-items: center; justify-content: space-between; gap: 1rem; padding: 1.1rem 1.6rem; border-bottom: 1px solid var(--line); background: var(--panel); position: sticky; top: 0; z-index: 10; }
.top .title { display: flex; align-items: baseline; gap: .8rem; min-width: 0; }
.top .sub { color: var(--muted); font-size: .85rem; }
.top .actions { display: flex; align-items: center; gap: .5rem; }
.content { padding: 1.4rem 1.6rem 3rem; display: grid; gap: 1.2rem; }
.btn.menu-btn { display: none; }

/* Building blocks */
.panel { background: var(--panel); border: 1px solid var(--line); border-radius: 12px; box-shadow: var(--shadow); }
.panel > header { display: flex; align-items: center; justify-content: space-between; gap: 1rem; padding: .9rem 1.1rem; border-bottom: 1px solid var(--line); }
.panel > header p { margin: 0; color: var(--muted); font-size: .82rem; }
.panel .body { padding: 1rem 1.1rem; }
.panel .empty { padding: 2rem 1.1rem; text-align: center; color: var(--muted); }
.grid { display: grid; gap: 1.2rem; }
.g2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.g3 { grid-template-columns: 2fr 1fr; }
.kpis { display: grid; grid-template-columns: repeat(auto-fit, minmax(170px, 1fr)); gap: 1rem; }
.kpi { padding: 1rem 1.1rem; }
.kpi .label { font: 600 .68rem var(--mono); letter-spacing: .1em; text-transform: uppercase; color: var(--muted); }
.kpi .value { font-size: 1.75rem; font-weight: 650; color: var(--ink); margin-top: .25rem; font-variant-numeric: tabular-nums; }
.kpi .note { font-size: .8rem; color: var(--muted); }
.kpi.alert .value { color: var(--red); }

.btn { display: inline-flex; align-items: center; justify-content: center; gap: .4rem; padding: .48rem .85rem; border-radius: 7px; border: 1px solid var(--line-2); background: var(--panel); color: var(--ink); font: 500 .86rem inherit; font-family: inherit; cursor: pointer; text-decoration: none; white-space: nowrap; }
.btn:hover { border-color: var(--muted); }
.btn.primary { background: var(--blue); border-color: var(--blue); color: var(--on-blue); }
.btn.primary:hover { background: var(--blue-2); border-color: var(--blue-2); }
.btn.danger { color: var(--red); }
.btn.danger:hover { border-color: var(--red); }
.btn.small { padding: .3rem .6rem; font-size: .8rem; }
.btn[disabled] { opacity: .55; cursor: not-allowed; }
.icon-btn { padding: .45rem; }
.icon-btn svg { width: 18px; height: 18px; }

.pill { display: inline-flex; align-items: center; gap: .35rem; padding: .12rem .55rem; border-radius: 99px; font-size: .74rem; font-weight: 600; white-space: nowrap; background: var(--panel-2); color: var(--muted); border: 1px solid var(--line); }
.pill::before { content: ""; width: .45rem; height: .45rem; border-radius: 50%; background: currentColor; }
.pill.live { color: var(--green); background: var(--green-bg); border-color: transparent; }
.pill.live::before { animation: pulse 1.6s ease-in-out infinite; }
.pill.paused, .pill.warn { color: var(--amber); background: var(--amber-bg); border-color: transparent; }
.pill.error, .pill.closed.bad { color: var(--red); background: var(--red-bg); border-color: transparent; }
.pill.info { color: var(--blue); background: var(--blue-bg); border-color: transparent; }
.pill.plain::before { display: none; }
@keyframes pulse { 50% { opacity: .35; } }
.badge { min-width: 1.4rem; padding: 0 .4rem; border-radius: 99px; background: var(--red); color: #fff; font-size: .72rem; font-weight: 700; text-align: center; }

table { width: 100%; border-collapse: collapse; }
th { text-align: left; font: 600 .68rem var(--mono); letter-spacing: .08em; text-transform: uppercase; color: var(--muted); padding: .6rem 1.1rem; border-bottom: 1px solid var(--line); background: var(--panel-2); }
td { padding: .7rem 1.1rem; border-bottom: 1px solid var(--line); vertical-align: top; }
tr:last-child td { border-bottom: 0; }
tbody tr.link { cursor: pointer; }
tbody tr.link:hover td { background: var(--panel-2); }
td .sub { display: block; color: var(--muted); font-size: .8rem; }
td.num .sub { white-space: nowrap; }
.num { text-align: right; font-variant-numeric: tabular-nums; }
.table-wrap { overflow-x: auto; }

.meter { height: 6px; border-radius: 99px; background: var(--line); overflow: hidden; margin-top: .45rem; }
.meter i { display: block; height: 100%; background: var(--blue); border-radius: inherit; }
.meter i.hot { background: var(--red); }
.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: 1rem 1.4rem; }
.stat .label { font-size: .76rem; color: var(--muted); }
.stat .value { font-weight: 600; color: var(--ink); font-variant-numeric: tabular-nums; }
.spark { display: block; width: 100%; height: 42px; margin-top: .3rem; }
.spark path.line { fill: none; stroke: var(--blue); stroke-width: 1.6; }
.spark path.area { fill: var(--blue-bg); }
.bars { display: flex; align-items: flex-end; gap: 3px; height: 140px; padding-top: .5rem; }
.bars div { flex: 1; background: var(--blue); border-radius: 3px 3px 0 0; min-height: 2px; opacity: .85; }
.bars div.today { background: var(--gold); opacity: 1; }
.bars-axis { display: flex; justify-content: space-between; color: var(--muted); font-size: .74rem; margin-top: .4rem; }

.events { list-style: none; margin: 0; padding: 0; }
.events li { display: grid; grid-template-columns: 5.5rem 4.2rem 1fr; gap: .8rem; padding: .6rem 1.1rem; border-bottom: 1px solid var(--line); align-items: start; }
.events li:last-child { border-bottom: 0; }
.events time { color: var(--muted); font-size: .8rem; font-variant-numeric: tabular-nums; }
.events .msg { color: var(--ink); }
.events .meta { display: block; color: var(--muted); font-size: .78rem; }
.events .detail { display: block; color: var(--muted); font-size: .8rem; white-space: pre-wrap; word-break: break-word; }

.live-cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 1rem; padding: 1rem 1.1rem; }
.live-card { border: 1px solid var(--line); border-radius: 10px; padding: .9rem 1rem; background: var(--panel-2); display: grid; gap: .5rem; text-decoration: none; color: inherit; }
.live-card:hover { border-color: var(--blue); }
.live-card .row { display: flex; justify-content: space-between; gap: .6rem; align-items: center; }
.live-card .last { color: var(--ink); font-size: .9rem; min-height: 2.6em; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.live-card .meta { display: flex; flex-wrap: wrap; gap: .3rem .9rem; color: var(--muted); font-size: .78rem; }

/* Forms and dialogs */
label.field { display: grid; gap: .3rem; font-weight: 600; font-size: .84rem; color: var(--ink); }
label.field .hint { font-weight: 400; color: var(--muted); font-size: .78rem; }
input, select, textarea { font: inherit; font-size: .9rem; padding: .5rem .65rem; border: 1px solid var(--line-2); border-radius: 7px; background: var(--panel); color: var(--ink); width: 100%; }
input:focus, select:focus, textarea:focus { outline: 2px solid var(--blue); outline-offset: 0; border-color: var(--blue); }
textarea { min-height: 5rem; resize: vertical; }
.form { display: grid; gap: .9rem; }
.form .row2 { display: grid; grid-template-columns: 1fr 1fr; gap: .9rem; }
fieldset { border: 1px solid var(--line); border-radius: 8px; padding: .7rem .9rem; margin: 0; }
legend { font-weight: 600; font-size: .84rem; color: var(--ink); padding: 0 .3rem; }
.checks { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: .35rem .8rem; }
.checks label { display: flex; align-items: center; gap: .45rem; font-size: .86rem; color: var(--body); font-weight: 400; }
.checks input { width: auto; }
dialog { border: 1px solid var(--line); border-radius: 14px; padding: 0; width: min(560px, 94vw); background: var(--panel); color: var(--body); box-shadow: 0 30px 80px rgb(0 0 0 / .35); }
dialog::backdrop { background: rgb(5 10 20 / .55); }
dialog header { padding: 1rem 1.2rem; border-bottom: 1px solid var(--line); display: flex; justify-content: space-between; align-items: center; }
dialog .body { padding: 1.1rem 1.2rem; max-height: 70vh; overflow: auto; }
dialog footer { padding: .9rem 1.2rem; border-top: 1px solid var(--line); display: flex; justify-content: flex-end; gap: .5rem; }
.error-text { color: var(--red); font-weight: 500; margin: 0; }
.error-text:empty { display: none; }
.secret { display: flex; gap: .4rem; align-items: center; }
.secret code { flex: 1; padding: .45rem .6rem; border: 1px solid var(--line); border-radius: 6px; background: var(--panel-2); overflow-x: auto; white-space: nowrap; color: var(--ink); }
.callout { padding: .8rem 1rem; border-radius: 8px; background: var(--amber-bg); color: var(--ink); border: 1px solid transparent; }
.callout.info { background: var(--blue-bg); }
.kv { display: grid; grid-template-columns: max-content 1fr; gap: .55rem 1.2rem; margin: 0; }
.kv dt { color: var(--muted); font-size: .82rem; }
.kv dd { margin: 0; color: var(--ink); min-width: 0; }
.captions { height: 320px; overflow-y: auto; padding: .8rem 1.1rem; display: flex; flex-direction: column; gap: .6rem; }
.captions p { margin: 0; color: var(--ink); }
.captions .tr { display: block; color: var(--muted); font-size: .86rem; }
.captions .partial { color: var(--muted); font-style: italic; }
.toolbar { display: flex; flex-wrap: wrap; gap: .5rem; align-items: center; }
.toolbar select, .toolbar input { width: auto; }
.toasts { position: fixed; right: 1rem; bottom: 1rem; display: grid; gap: .5rem; z-index: 100; }
.toast { background: var(--ink); color: var(--bg); padding: .65rem .9rem; border-radius: 8px; box-shadow: var(--shadow); max-width: 360px; }
.toast.bad { background: var(--red); color: #fff; }

/* Docs (API reference, how it works), rendered from docs/*.md */
.docs { display: grid; grid-template-columns: 220px minmax(0, 1fr); gap: 1.2rem; align-items: start; }
.toc { position: sticky; top: 5.5rem; padding: .9rem 1rem; max-height: calc(100vh - 7rem); overflow: auto; }
.toc .label { margin: 0 0 .5rem; font: 600 .68rem var(--mono); letter-spacing: .1em; text-transform: uppercase; color: var(--muted); }
.toc ul { list-style: none; margin: 0; padding: 0; display: grid; gap: .15rem; }
.toc a { display: block; padding: .25rem .4rem; border-radius: 5px; color: var(--body); text-decoration: none; font-size: .86rem; }
.toc a:hover { background: var(--panel-2); color: var(--ink); }
.doc { padding: 1.4rem 1.8rem 2rem; max-width: 980px; font-size: .95rem; line-height: 1.65; }
.doc h2 { font-size: 1.3rem; margin: 2.2rem 0 .7rem; padding-top: .4rem; border-top: 1px solid var(--line); scroll-margin-top: 5.5rem; }
.doc h2:first-of-type { margin-top: .4rem; border-top: 0; }
.doc h3 { font-size: 1.02rem; margin: 1.6rem 0 .5rem; }
.doc p, .doc li { color: var(--body); }
.doc code { background: var(--panel-2); border: 1px solid var(--line); border-radius: 4px; padding: .05rem .3rem; color: var(--ink); }
.doc pre { background: #0b1220; color: #dbe4f5; border-radius: 8px; padding: 1rem 1.1rem; overflow-x: auto; font: .82rem/1.6 var(--mono); margin: 0 0 1rem; }
.doc pre code { background: none; border: 0; padding: 0; color: inherit; }
.doc .copy-code { float: right; margin: .4rem .4rem -2.4rem 0; position: relative; z-index: 1; }
.doc table { margin: .4rem 0 1.2rem; font-size: .88rem; }
.doc th, .doc td { padding: .5rem .8rem; }
.doc td code { white-space: nowrap; }
.doc img.diagram { display: block; width: 100%; height: auto; border-radius: 8px; border: 1px solid var(--line); background: #fff; margin: 1rem 0 1.4rem; }
.flow { display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); gap: .6rem; margin: 1rem 0 1.4rem; }
.flow div { position: relative; background: var(--blue-bg); border: 1px solid var(--line); border-radius: 8px; padding: .7rem .75rem; display: grid; gap: .2rem; }
.flow div:not(:last-child)::after { content: "→"; position: absolute; right: -.62rem; top: 50%; transform: translateY(-50%); color: var(--muted); font-weight: 700; }
.flow b { color: var(--ink); font-size: .86rem; }
.flow span { color: var(--muted); font-size: .76rem; line-height: 1.35; overflow-wrap: anywhere; }
tfoot th { background: var(--panel-2); border-top: 1px solid var(--line); border-bottom: 0; color: var(--ink); }

/* Live desk */
.desk { list-style: none; margin: 0; padding: 0; }
.desk li { padding: .7rem 1.1rem; border-bottom: 1px solid var(--line); display: grid; gap: .4rem; }
.desk li:last-child { border-bottom: 0; }
.desk li.held { background: var(--amber-bg); }
.desk li.empty { color: var(--muted); text-align: center; padding: 1.4rem; }
.desk .desk-meta { display: flex; justify-content: space-between; gap: .6rem; font-size: .82rem; color: var(--muted); }
.desk .desk-meta strong { color: var(--ink); }
.desk .count { font: .8rem var(--mono); }
.desk .tr { display: grid; gap: .1rem; font-size: .82rem; color: var(--muted); }
.desk .tr b { font-weight: 600; margin-right: .3rem; }
.desk.done p { margin: 0; color: var(--ink); }
.partial-line { margin: 0; padding: .6rem 1.1rem; color: var(--muted); font-style: italic; min-height: 2.4rem; border-bottom: 1px solid var(--line); }
.transcript .who { color: var(--ink); }

/* Test lab */
.lab { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr); gap: 1.2rem; align-items: start; }
.lab video { width: 100%; aspect-ratio: 16 / 9; background: #000; border-radius: 8px; display: block; }
.lab-cols { display: grid; grid-template-columns: repeat(var(--n, 1), minmax(0, 1fr)); }
.lab-col { border-right: 1px solid var(--line); min-width: 0; }
.lab-col:last-child { border-right: 0; }
.lab-col h3 { padding: .6rem .9rem; border-bottom: 1px solid var(--line); font-size: .8rem; color: var(--muted); }
.lab-col ol { list-style: none; margin: 0; padding: .7rem .9rem; height: 420px; overflow-y: auto; display: flex; flex-direction: column; gap: .5rem; }
.lab-col li { color: var(--ink); line-height: 1.45; }
.lab-col li.partial { color: var(--muted); font-style: italic; }
.pick { position: relative; }
.pick summary { list-style: none; }
.pick summary::-webkit-details-marker { display: none; }
.pick .checks { position: absolute; right: 0; top: calc(100% + .4rem); z-index: 5; width: 300px; max-height: 300px; overflow: auto; grid-template-columns: 1fr 1fr; background: var(--panel); border: 1px solid var(--line); border-radius: 8px; padding: .7rem; box-shadow: var(--shadow); }
@media (max-width: 1100px) { .lab { grid-template-columns: 1fr; } }

/* Transcript */
.transcript { list-style: none; margin: 0; padding: 0; }
.transcript li { display: grid; grid-template-columns: 4.5rem 1fr auto; gap: 1rem; padding: .65rem 1.1rem; border-bottom: 1px solid var(--line); align-items: start; }
.transcript li:last-child { border-bottom: 0; }
.transcript li.edited { background: var(--blue-bg); }
.transcript li.empty { display: block; color: var(--muted); text-align: center; padding: 2rem; }
.transcript time { color: var(--muted); font: .82rem var(--mono); padding-top: .15rem; }
.transcript p { margin: 0; color: var(--ink); }
.transcript .actions { display: flex; gap: .4rem; align-items: center; }
.transcript form { grid-column: 2 / -1; }
.teach { padding: .8rem 1rem; border-radius: 8px; background: var(--amber-bg); }
.teach p { margin: 0 0 .5rem; color: var(--ink); }
.wordlist { margin: 0; max-height: 18rem; overflow: auto; font: .82rem/1.6 var(--mono); color: var(--body); white-space: pre-wrap; }

/* Sign-in */
.signin { min-height: 100vh; display: grid; place-items: center; padding: 1.5rem; }
.signin .card { width: min(400px, 100%); padding: 1.8rem; display: grid; gap: 1rem; }
.signin .brand { color: var(--ink); padding: 0; }
.signin-clerk { display: grid; justify-items: center; gap: 1.4rem; width: 100%; max-width: 440px; }
.signin-clerk > div { max-width: 100%; }

@media (max-width: 900px) {
  .shell { grid-template-columns: 1fr; }
  .side { position: fixed; inset: 0 auto 0 0; width: 250px; z-index: 50; transform: translateX(-100%); transition: transform .2s; }
  .side.open { transform: none; }
  .btn.menu-btn { display: inline-flex; }
  .g2, .g3 { grid-template-columns: 1fr; }
  .top { padding: .8rem 1rem; }
  .content { padding: 1rem; }
  .form .row2 { grid-template-columns: 1fr; }
  .events li { grid-template-columns: 1fr; gap: .2rem; }
  .docs { grid-template-columns: 1fr; }
  .toc { position: static; max-height: none; }
  .flow { grid-template-columns: 1fr 1fr; }
  .flow div::after { display: none; }
}
@media (prefers-reduced-motion: reduce) { .pill.live::before { animation: none; } .side { transition: none; } }