/* obsync dashboard — one stylesheet, no framework, no remote asset.
   Quiet and ledger-like: thin rules, tabular numbers, one accent, no
   gradients, no shadows, no animation. Mobile-first; the table becomes cards
   below 640px. Light and dark come from prefers-color-scheme only. */

:root {
  --bg: #fbfbfa;
  --surface: #ffffff;
  --ink: #14161c;
  --ink-2: #545a69;
  --rule: #dcdde2;
  --rule-2: #eceded;
  --accent: #1f47c4;
  --warn: #8a4405;
  --warn-bg: #fdf4e7;
  --danger: #9c1c1c;
  --ok: #1d6b3f;
  --sans: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #101219;
    --surface: #171a22;
    --ink: #e8eaf0;
    --ink-2: #a6acbb;
    --rule: #2b2f3b;
    --rule-2: #21242d;
    --accent: #9db6ff;
    --warn: #f0b060;
    --warn-bg: #241c10;
    --danger: #ff9a90;
    --ok: #7fd3a1;
  }
}

*, *::before, *::after { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 15px/1.5 var(--sans);
}

h1 { font-size: 1.3rem; margin: 0 0 0.75rem; letter-spacing: -0.01em; }
h2 { font-size: 0.95rem; margin: 1.5rem 0 0.5rem; letter-spacing: 0.02em; text-transform: uppercase; color: var(--ink-2); }
h3 { font-size: 0.9rem; margin: 0 0 0.5rem; }
p { margin: 0 0 0.6rem; }
a { color: var(--accent); }
code, .mono, .num, table { font-variant-numeric: tabular-nums; }
code, .mono { font-family: var(--mono); font-size: 0.86em; }
.strong { font-weight: 600; }
.sub { color: var(--ink-2); }
.note { color: var(--ink-2); font-size: 0.86rem; max-width: 62ch; }
.prose { max-width: 68ch; padding-left: 1.1rem; }
.prose li { margin-bottom: 0.4rem; }

:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

.visually-hidden {
  position: absolute; width: 1px; height: 1px; margin: -1px; padding: 0; border: 0;
  overflow: hidden; white-space: nowrap;
}

.skip {
  position: absolute; left: -999px; top: 0; padding: 0.5rem 0.75rem;
  background: var(--surface); border: 1px solid var(--accent); z-index: 5;
}
.skip:focus { left: 0.5rem; top: 0.5rem; }

.sprite { position: absolute; width: 0; height: 0; overflow: hidden; }
.glyph { width: 16px; height: 16px; fill: none; stroke: currentColor; stroke-width: 1.25; flex: none; }

/* ---- chrome ---------------------------------------------------------- */

.topbar {
  position: sticky; top: 0; z-index: 4;
  display: flex; align-items: center; gap: 0.75rem; flex-wrap: wrap;
  padding: 0.5rem 0.9rem;
  background: var(--surface);
  border-bottom: 1px solid var(--rule);
}
.brand { margin: 0; font-weight: 600; letter-spacing: 0.06em; }
.tabs { display: flex; gap: 0.15rem; overflow-x: auto; flex: 1 1 100%; order: 3; }
.tabs a {
  padding: 0.35rem 0.55rem; white-space: nowrap;
  border-bottom: 2px solid transparent;
  color: var(--ink-2); text-decoration: none; font-size: 0.88rem;
}
.tabs a:hover { color: var(--ink); background: var(--rule-2); }
.tabs a[aria-current="page"] { color: var(--ink); border-bottom-color: var(--accent); }
#signout { margin-left: auto; }

.banner {
  display: flex; gap: 0.75rem; align-items: center; flex-wrap: wrap;
  margin: 0.6rem 0.9rem 0; padding: 0.5rem 0.75rem;
  border: 1px solid var(--danger); border-left-width: 3px;
  color: var(--danger); background: var(--surface);
}
.banner p { margin: 0; }

.status { margin: 0.6rem 0.9rem 0; color: var(--ink-2); font-size: 0.86rem; min-height: 1.2em; }

main { padding: 0.9rem; max-width: 76rem; }
.page > :first-child { margin-top: 0; }

.foot {
  margin: 2rem 0 0; padding: 0.75rem 0.9rem;
  border-top: 1px solid var(--rule); color: var(--ink-2); font-size: 0.8rem;
}
.foot p { margin: 0; }

/* ---- controls -------------------------------------------------------- */

button {
  font: inherit; color: var(--ink); background: var(--surface);
  border: 1px solid var(--rule); border-radius: 3px;
  padding: 0.3rem 0.6rem; cursor: pointer;
}
button:hover { border-color: var(--ink-2); }
button[disabled] { opacity: 0.55; cursor: default; }
button.ghost { color: var(--ink-2); }
button.danger { color: var(--danger); border-color: var(--danger); }

.form { max-width: 44rem; }
.field { display: flex; flex-direction: column; gap: 0.25rem; margin-bottom: 0.75rem; }
.field label { font-size: 0.82rem; color: var(--ink-2); }
input {
  font: inherit; color: var(--ink); background: var(--surface);
  border: 1px solid var(--rule); border-radius: 3px; padding: 0.35rem 0.5rem;
  max-width: 48ch;
}
input:invalid:not(:placeholder-shown) { border-color: var(--danger); }

.copyrow { display: flex; gap: 0.5rem; align-items: center; flex-wrap: wrap; }
.copyrow code { overflow-wrap: anywhere; }

/* ---- cards ----------------------------------------------------------- */

.cards, .volumes {
  display: grid; gap: 0.75rem;
  grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr));
}
.card {
  background: var(--surface); border: 1px solid var(--rule); border-radius: 3px;
  padding: 0.7rem 0.8rem;
}
.card h2 { margin-top: 0; }

.kv { display: grid; grid-template-columns: auto 1fr; gap: 0.15rem 0.75rem; margin: 0; }
.kv dt { color: var(--ink-2); font-size: 0.84rem; }
.kv dd { margin: 0; text-align: right; overflow-wrap: anywhere; }

.pill {
  border: 1px solid var(--rule); border-radius: 2px; padding: 0 0.3rem;
  color: var(--ink-2); font-size: 0.76rem;
}
.tag { color: var(--ink-2); font-size: 0.76rem; text-transform: uppercase; letter-spacing: 0.04em; }
.device.off .devname .strong { color: var(--ink-2); text-decoration: line-through; }
.device.off .tag { color: var(--danger); }

/* ---- meters ---------------------------------------------------------- */

.bar { width: 100%; height: 10px; display: block; margin: 0.35rem 0; }
.bar-track { fill: var(--rule-2); }
.bar-fill { fill: var(--accent); }
.bar-fill.hot { fill: var(--danger); }
.bar-mark { stroke: var(--warn); stroke-width: 1; }
.volume-line { margin: 0.2rem 0 0.1rem; }

.spark { width: 100%; height: 48px; display: block; margin: 0.25rem 0; }
.spark-line { fill: none; stroke: var(--accent); stroke-width: 1.5; vector-effect: non-scaling-stroke; }
.axis { display: flex; justify-content: space-between; color: var(--ink-2); font-size: 0.76rem; margin: 0; }

/* ---- tables ---------------------------------------------------------- */

.scroller { overflow-x: auto; }
.grid { width: 100%; border-collapse: collapse; font-size: 0.88rem; }
.grid th, .grid td { text-align: left; padding: 0.4rem 0.55rem; border-bottom: 1px solid var(--rule); }
.grid thead th {
  color: var(--ink-2); font-size: 0.74rem; font-weight: 600;
  text-transform: uppercase; letter-spacing: 0.04em; white-space: nowrap;
  border-bottom: 1px solid var(--ink-2);
}
.grid tbody th { font-weight: 400; }
.grid .num { text-align: right; white-space: nowrap; }
.devname { display: flex; gap: 0.4rem; align-items: flex-start; }
.devname .sub { display: block; font-size: 0.8rem; }
.actions { display: flex; gap: 0.35rem; flex-wrap: wrap; align-items: center; }
.confirm { display: flex; gap: 0.35rem; flex-wrap: wrap; align-items: center; color: var(--danger); font-size: 0.82rem; }
.history td { background: var(--rule-2); }
.events { margin: 0; padding-left: 1.1rem; font-size: 0.84rem; }
.events li { margin-bottom: 0.15rem; }
.skelrow td { padding: 0.4rem 0.55rem; }
.skel { display: inline-block; min-width: 7ch; color: transparent; background: var(--rule-2); border-radius: 2px; }

.empty { color: var(--ink-2); font-size: 0.88rem; padding: 0.5rem 0; }

.warn {
  border: 1px solid var(--warn); border-left-width: 3px; background: var(--warn-bg);
  padding: 0.6rem 0.8rem; margin: 0.75rem 0; max-width: 68ch;
}
.warn h2 { margin-top: 0; color: var(--warn); }
.warn p:last-child { margin-bottom: 0; }

/* ---- logs ------------------------------------------------------------ */

.log { list-style: none; margin: 0; padding: 0; }
.log li {
  display: flex; gap: 0.6rem; flex-wrap: wrap;
  padding: 0.3rem 0; border-bottom: 1px solid var(--rule-2);
  font-family: var(--mono); font-size: 0.8rem;
}
.log .refuse { color: var(--danger); }
.log .accept { color: var(--ok); }

/* `hidden` wins over every class above by ORDER, since an attribute and a
   class weigh the same: this rule stays below the last `display:` outside a
   media block, and html.test.mjs holds it there. The narrow block below sets
   `display` on `.grid tr`, which outweighs an attribute, so it hides its own. */
[hidden] { display: none; }

/* ---- wide ------------------------------------------------------------ */

@media (min-width: 40rem) {
  .topbar { padding: 0.5rem 1.25rem; flex-wrap: nowrap; }
  .tabs { flex: 0 1 auto; order: 0; }
  main { padding: 1.25rem; }
  .banner, .status { margin-left: 1.25rem; margin-right: 1.25rem; }
  .foot { padding-left: 1.25rem; }
  h1 { font-size: 1.5rem; }
}

/* ---- narrow: the table becomes cards --------------------------------- */

@media (max-width: 39.99rem) {
  .grid, .grid tbody, .grid tr, .grid tbody th, .grid td { display: block; width: 100%; }
  .grid thead { display: none; }
  .grid tr[hidden] { display: none; }
  .grid tr { border: 1px solid var(--rule); border-radius: 3px; margin-bottom: 0.6rem; padding: 0.2rem 0.1rem; }
  .grid tbody th, .grid td { border-bottom: 1px solid var(--rule-2); }
  .grid tr > :last-child { border-bottom: 0; }
  .grid td[data-label]::before, .grid th[data-label]::before {
    content: attr(data-label);
    display: block; color: var(--ink-2);
    font-size: 0.7rem; text-transform: uppercase; letter-spacing: 0.04em;
  }
  .grid .num { text-align: left; }
  .kv dd { text-align: left; }
}