:root {
  --bg: #f6f5f1; --card: #ffffff; --ink: #1d1d1b; --muted: #67665f; --line: #e2e0d8; --soft: #efede7;
  --accent: #2f5d8a; --accent-ink: #ffffff; --ok: #1f7a4d; --warn: #9a6400; --bad: #b42318; --code: #f0eee8;
  --shadow: 0 1px 2px rgba(0,0,0,.05);
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #161615; --card: #20201e; --ink: #ecebe6; --muted: #a3a29b; --line: #34332f; --soft: #2a2927;
    --accent: #8db4dd; --accent-ink: #10202f; --ok: #5cc28d; --warn: #e3b25a; --bad: #f97066; --code: #2b2a27;
  }
}
:root[data-theme="dark"] {
  --bg: #161615; --card: #20201e; --ink: #ecebe6; --muted: #a3a29b; --line: #34332f; --soft: #2a2927;
  --accent: #8db4dd; --accent-ink: #10202f; --ok: #5cc28d; --warn: #e3b25a; --bad: #f97066; --code: #2b2a27;
}
* { box-sizing: border-box; }
html, body { margin: 0; background: var(--bg); color: var(--ink); }
body { font: 15px/1.5 -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; }
[hidden] { display: none !important; }
h1 { font-size: 20px; margin: 0 0 6px; }
h2 { font-size: 16px; margin: 0; }
h3 { font-size: 15px; margin: 0; }
.muted { color: var(--muted); }
.error { color: var(--bad); margin: 4px 0; }
code { background: var(--code); border-radius: 4px; padding: 1px 5px; font-size: 13px; word-break: break-all; }
pre { background: var(--code); border-radius: 8px; padding: 10px; font-size: 12px; overflow: auto; max-height: 320px; }

/* sign-in */
.signin { min-height: 100vh; display: grid; place-items: center; padding: 16px; }
.signin-card { width: 100%; max-width: 360px; display: grid; gap: 12px; }
label { display: grid; gap: 4px; font-size: 14px; }
input { font: inherit; padding: 8px 10px; border: 1px solid var(--line); border-radius: 8px; background: var(--card); color: var(--ink); }
input:focus { outline: 2px solid var(--accent); outline-offset: 1px; }

/* frame */
.top { display: flex; align-items: center; gap: 16px; padding: 12px 20px; border-bottom: 1px solid var(--line); background: var(--card); position: sticky; top: 0; z-index: 5; }
.brand { display: flex; align-items: center; gap: 8px; font-weight: 600; }
.status { flex: 1; font-size: 13px; min-width: 0; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.who { font-size: 13px; }
.tabs { display: flex; gap: 2px; padding: 0 20px; border-bottom: 1px solid var(--line); background: var(--card); overflow-x: auto; }
.tab { font: inherit; background: none; border: 0; border-bottom: 2px solid transparent; padding: 10px 12px; color: var(--muted); cursor: pointer; white-space: nowrap; }
.tab[aria-selected="true"] { color: var(--ink); border-bottom-color: var(--accent); font-weight: 600; }
.tab.coming { opacity: .6; }
.tab.settings { margin-left: auto; }
.badge { display: inline-block; min-width: 20px; padding: 0 6px; margin-left: 6px; border-radius: 10px; background: var(--accent); color: var(--accent-ink); font-size: 12px; font-weight: 600; text-align: center; }
.view { max-width: 980px; margin: 0 auto; padding: 20px 16px 80px; display: grid; gap: 22px; }

/* blocks */
.card { background: var(--card); border: 1px solid var(--line); border-radius: 10px; padding: 14px 16px; box-shadow: var(--shadow); }
.section { display: grid; gap: 10px; }
.section-head { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.section-head h2 { flex: 1; }
.row { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.row.end { justify-content: flex-end; }
.tag { display: inline-block; font-size: 12px; color: var(--muted); border: 1px solid var(--line); border-radius: 6px; padding: 0 6px; margin-right: 6px; }
.tag.t4 { color: var(--bad); border-color: var(--bad); }
.empty { color: var(--muted); }
.alarm { border-color: var(--bad); margin: 12px 20px 0; }
.alarm b { color: var(--bad); }

/* buttons */
.btn { font: inherit; font-size: 14px; padding: 6px 12px; border-radius: 8px; border: 1px solid var(--line); background: var(--card); color: var(--ink); cursor: pointer; }
.btn:hover { background: var(--soft); }
.btn:disabled { opacity: .5; cursor: default; }
.btn.primary { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); }
.btn.good { border-color: var(--ok); color: var(--ok); }
.btn.bad { border-color: var(--bad); color: var(--bad); }
.btn.small { font-size: 13px; padding: 3px 9px; }
.linkish { background: none; border: 0; color: var(--accent); cursor: pointer; font: inherit; font-size: 13px; padding: 0; }

/* factory functions */
.actions { display: grid; grid-template-columns: repeat(auto-fill, minmax(210px, 1fr)); gap: 10px; }
.action { text-align: left; display: grid; gap: 4px; padding: 10px 12px; border-radius: 10px; border: 1px solid var(--line); background: var(--card); color: var(--ink); font: inherit; cursor: pointer; }
.action:hover:not(:disabled) { border-color: var(--accent); }
.action:disabled { opacity: .55; cursor: default; }
.action b { font-size: 14px; }
.action span { font-size: 12.5px; color: var(--muted); line-height: 1.4; }

/* plans and questions */
.item { display: grid; gap: 8px; }
.item-head { display: flex; gap: 10px; align-items: flex-start; }
.item-head .title { flex: 1; min-width: 0; }
.item-head input[type="checkbox"] { margin-top: 4px; width: 16px; height: 16px; }
.ops { margin: 0; padding-left: 18px; font-size: 13.5px; }
.ops li { word-break: break-word; }
.notes { margin: 0; padding-left: 18px; font-size: 13.5px; color: var(--warn); }
.scroll { overflow-x: auto; }
table { border-collapse: collapse; font-size: 13px; min-width: 100%; }
th, td { border-bottom: 1px solid var(--line); padding: 4px 8px; text-align: left; vertical-align: top; }
th { color: var(--muted); font-weight: 600; }
.compact { display: grid; gap: 0; padding: 4px 16px; }
.compact > div { padding: 8px 0; border-bottom: 1px solid var(--line); font-size: 14px; }
.compact > div:last-child { border-bottom: 0; }
details > summary { cursor: pointer; color: var(--muted); font-size: 13px; }

/* overview */
.lines { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 10px; }
.line-card { cursor: pointer; text-align: left; font: inherit; color: var(--ink); }
.line-card:hover { border-color: var(--accent); }
.nums { display: grid; grid-template-columns: auto 1fr; gap: 2px 10px; font-size: 13.5px; margin-top: 6px; }
.nums b { text-align: right; }
.job { display: grid; gap: 4px; }
.dot { display: inline-block; width: 8px; height: 8px; border-radius: 50%; margin-right: 6px; background: var(--muted); }
.dot.running { background: var(--warn); animation: pulse 1.2s infinite; }
.dot.ok { background: var(--ok); }
.dot.failed { background: var(--bad); }
@keyframes pulse { 50% { opacity: .3; } }

/* settings */
.form { display: grid; gap: 12px; max-width: 420px; }

/* toast and dialog */
.toast { position: fixed; bottom: 18px; left: 50%; transform: translateX(-50%); background: var(--ink); color: var(--bg); padding: 10px 16px; border-radius: 10px; font-size: 14px; max-width: calc(100% - 32px); z-index: 20; }
.dialog { border: 1px solid var(--line); border-radius: 12px; background: var(--card); color: var(--ink); max-width: 440px; width: calc(100% - 32px); }
.dialog::backdrop { background: rgba(0,0,0,.35); }
.dialog form { display: grid; gap: 12px; }

@media (max-width: 640px) {
  .top { padding: 10px 16px; gap: 10px; }
  .status { display: none; }
  .tabs { padding: 0 8px; }
  .alarm { margin: 12px 16px 0; }
}

/* utilities (the page's CSP allows no inline styles) */
.inline { display: inline; }
.grow { flex: 1; }
.small-text { font-size: 13px; }
.m0 { margin: 0; }
.m0top { margin-top: 0; }
.m0bottom { margin-bottom: 0; }

/* preview: new and owned files side by side */
.preview { display: grid; gap: 8px; }
.preview-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 10px; }
.preview figure { margin: 0; display: grid; gap: 4px; min-width: 0; }
.preview figcaption { font-size: 13px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.preview video { width: 100%; aspect-ratio: 16 / 9; background: #000; border-radius: 8px; }

/* the factory's recommendation on an owner question */
.recommend { font-size: 14px; border-left: 3px solid var(--accent); padding: 2px 0 2px 10px; }
.recommend.muted { border-left-color: var(--line); }

/* the owner's questions to the conductor (RPT-019) */
.asked { font-size: 14px; border-left: 3px solid var(--warn); padding: 4px 0 4px 10px; display: grid; gap: 4px; }
.asked.answered { border-left-color: var(--accent); }
.dialog textarea { width: 100%; box-sizing: border-box; font: inherit; padding: 8px; border: 1px solid var(--line);
  border-radius: 8px; background: var(--bg); color: var(--ink); resize: vertical; margin-top: 6px; }