/*
 * One page, one stylesheet, with the tokens and scales of the benches beside it.
 * A machine-produced fact -- an address, an identity, a value -- is set in the
 * mono face.
 *
 * This file is downloaded by whoever opens the page, comments included.
 */

:root {
  --ink: #17191c;
  --ink-quiet: #4a4f57;
  --ink-faint: #767c86;
  --page: #f7f8fa;
  --card: #ffffff;
  --edge: #dfe3e8;
  --accent: #1a5fb4;
  --bad: #b3261e;
  --good: #1c7c48;
  --waiting: #8a5a00;
  /* The warning colour: a value that went down since the first reading, and a
     meter whose last reading failed. Orange, as asked, and dark enough to read
     on white. */
  --falls: #c05600;

  --text-caption: 0.75rem;
  --text-small: 0.85rem;
  --text-body: 0.95rem;
  --text-lead: 1.1rem;
  --text-title: 1.5rem;

  --control: 34px;

  --gap-xs: 4px;
  --gap-s: 8px;
  --gap-m: 12px;
  --gap-l: 20px;
  --gap-xl: 32px;

  --font-mono: 'IBM Plex Mono', ui-monospace, SFMono-Regular, Menlo, monospace;
  --font: system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }
[hidden] { display: none !important; }

body {
  margin: 0;
  padding: var(--gap-xl) var(--gap-l);
  background: var(--page);
  color: var(--ink);
  font-family: var(--font);
  font-size: var(--text-body);
  line-height: 1.5;
}

main, .masthead { max-width: 1200px; margin: 0 auto; }
.masthead h1 { font-size: var(--text-title); margin: 0 0 var(--gap-xs); font-weight: 600; }
.lede { margin: 0 0 var(--gap-l); color: var(--ink-quiet); max-width: 70ch; }
.row.top { align-items: flex-start; }

.who { display: flex; gap: var(--gap-m); align-items: center; font-size: var(--text-small); }
.badge {
  font-size: var(--text-caption);
  color: var(--ink-quiet);
  border: 1px solid var(--edge);
  border-radius: 999px;
  padding: 0 var(--gap-s);
}

.panel {
  background: var(--card);
  border: 1px solid var(--edge);
  border-radius: 8px;
  padding: var(--gap-l);
  margin-bottom: var(--gap-l);
}
.narrow-card { max-width: 24rem; margin-left: auto; margin-right: auto; }
body:not(.signed-in) .masthead { max-width: 24rem; }

.heading { font-size: var(--text-lead); font-weight: 600; margin: var(--gap-xl) 0 var(--gap-m); }
.panel .heading { margin-top: 0; }
.note { color: var(--ink-quiet); margin: 0 0 var(--gap-m); }

.field { display: block; margin-bottom: var(--gap-m); }
.label { display: block; font-size: var(--text-small); color: var(--ink-quiet); margin-bottom: var(--gap-xs); }
.hint { color: var(--ink-faint); font-weight: 400; }

input[type=text], input[type=password], input[type=email], input[type=number], select {
  width: 100%;
  font-family: var(--font-mono);
  font-size: var(--text-small);
  color: var(--ink);
  background: var(--card);
  border: 1px solid var(--edge);
  border-radius: 6px;
  padding: var(--gap-s) var(--gap-m);
  height: var(--control);
}
select { font-family: var(--font); cursor: pointer; }
input:focus-visible, select:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
  border-color: var(--accent);
}
/* A field the form fills itself and nobody may type in, such as the address of
   a converter chosen from the list. It stays where it is, so the row around it
   does not move, and it is grey so that it is plainly not for typing. */
input:disabled {
  background: var(--page);
  color: var(--ink-faint);
  cursor: default;
  -webkit-text-fill-color: var(--ink-faint);
  opacity: 1;
}

.row { display: flex; gap: var(--gap-m); align-items: flex-end; flex-wrap: wrap; }
.row .field { margin-bottom: 0; }
/* Two fields that belong together, such as an address and its port: they take
   one line between them, and they wrap to the next line together. */
.row .pair { flex: 1 1 22rem; flex-wrap: nowrap; }
.narrow { width: 11rem; }
.minutes { width: 15rem; }
.grow { flex: 1 1 240px; }

button {
  font: inherit;
  font-size: var(--text-small);
  padding: 0 var(--gap-l);
  height: var(--control);
  border: 1px solid transparent;
  border-radius: 6px;
  background: var(--accent);
  color: #fff;
  cursor: pointer;
}
button:hover { filter: brightness(1.08); }
button[disabled] { opacity: 0.6; cursor: default; }
button.quiet { background: var(--card); color: var(--accent); border-color: var(--edge); }
button.quiet:hover { filter: none; border-color: var(--accent); }
/* A header toggle that is on, such as Notify me. */
button.quiet.is-on { background: var(--accent); color: #fff; border-color: var(--accent); }
button.danger { background: var(--bad); }
button.small { height: 28px; padding: 0 var(--gap-m); }
/* A button whose whole label is a drawing, such as the trash can. Square, and
   the drawing takes the button's own colour, so it works on any of them. */
/* The one listed meter to read, beside its label rather than across the form. */
select.narrow-select { width: auto; min-width: 16rem; }

/* The converters somebody was given, and which meters of each, under its row. */
td.give {
  display: flex;
  flex-direction: column;
  gap: var(--gap-s);
  align-items: flex-start;
}

/* The converter's name, and its meters on the line under it, so the two levels
   read as two levels rather than as one row of boxes. */
.give-converter {
  display: flex;
  flex-direction: column;
  gap: var(--gap-xs);
}

/* The meters of one converter, indented under its name so the two levels read
   as two levels. */
.give-converter .meters {
  display: flex;
  flex-wrap: wrap;
  gap: var(--gap-m);
  padding-left: var(--gap-l);
}

.small-choice { font-size: var(--text-small); }

button.icon { padding: 0 var(--gap-m); }
button.icon svg {
  width: 17px;
  height: 17px;
  display: block;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.3;
  stroke-linecap: round;
  stroke-linejoin: round;
}
button.wide { width: 100%; }
button:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

/* A button that opens a short list of links under it, such as Export. */
.menu { position: relative; }
.menu summary {
  display: inline-flex;
  align-items: center;
  gap: var(--gap-s);
  font-size: var(--text-small);
  padding: 0 var(--gap-l);
  height: var(--control);
  border: 1px solid var(--edge);
  border-radius: 6px;
  background: var(--card);
  color: var(--accent);
  cursor: pointer;
  list-style: none;
  user-select: none;
}
.menu summary::-webkit-details-marker { display: none; }
.menu summary:hover, .menu[open] summary { border-color: var(--accent); }
.menu summary:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.menu .caret { font-size: var(--text-caption); }
.menu-items {
  position: absolute;
  right: 0;
  top: calc(100% + var(--gap-xs));
  z-index: 10;
  min-width: 18rem;
  display: flex;
  flex-direction: column;
  padding: var(--gap-xs) 0;
  background: var(--card);
  border: 1px solid var(--edge);
  border-radius: 8px;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.08);
}
.menu-items a {
  display: flex;
  flex-direction: column;
  padding: var(--gap-s) var(--gap-m);
  color: var(--ink);
  text-decoration: none;
  font-size: var(--text-small);
}
.menu-items a .hint { font-size: var(--text-caption); }
.menu-items a:hover, .menu-items a:focus-visible { background: var(--page); outline: none; }

textarea {
  width: 100%;
  font-family: var(--font-mono);
  font-size: var(--text-small);
  border: 1px solid var(--edge);
  border-radius: 6px;
  padding: var(--gap-s) var(--gap-m);
}

/* Where the meters come from: three choices in a line, under the form. */
.source { margin: var(--gap-m) 0; align-items: center; gap: var(--gap-l); }
.source .label { margin: 0; }
.choice { font-size: var(--text-small); display: inline-flex; gap: var(--gap-xs); align-items: center; cursor: pointer; }

.privacy { margin: var(--gap-m) 0 0; font-size: var(--text-caption); color: var(--ink-faint); max-width: 80ch; }

/* A window: a form somebody opens, fills and closes, over the page it belongs
   to. The gateway bench's windows are the same shape.

   A row carries no margin of its own, so in a window whose fields sit in rows
   the rows would touch and the buttons would stand against the last field. The
   buttons stand further away than a row does, because they are not one more
   field. */
.window {
  border: 1px solid var(--edge);
  border-radius: 8px;
  padding: var(--gap-l);
  width: min(36rem, calc(100vw - 2 * var(--gap-l)));
  color: var(--ink);
  background: var(--card);
}
.window::backdrop { background: rgba(23, 25, 28, 0.35); }
.window h2 { font-size: var(--text-lead); margin: 0 0 var(--gap-s); }
.window .row { margin-top: var(--gap-m); }
.window .row.actions { margin-top: var(--gap-l); }
.window .refusal { margin-bottom: 0; }

/* The button over a table that opens the window to add a row to it. It needs
   the space below, or it touches the table it is about. */
.adds { margin-bottom: var(--gap-m); }
/* The row holding a panel's one action, under everything it acts on. */
.row.start { margin-top: var(--gap-l); }
.empty { color: var(--ink-faint); font-size: var(--text-small); margin: var(--gap-m) 0 0; }

.refusal, .notice {
  background: var(--card);
  border: 1px solid var(--bad);
  border-left-width: 4px;
  border-radius: 6px;
  padding: var(--gap-m) var(--gap-l);
  margin: var(--gap-m) 0 var(--gap-l);
  color: var(--bad);
}
.notice { border-color: var(--edge); border-left-color: var(--accent); color: var(--ink-quiet); }

.tabs { display: flex; gap: var(--gap-xs); margin-bottom: var(--gap-l); border-bottom: 1px solid var(--edge); }
.tab {
  background: none;
  color: var(--ink-quiet);
  border: none;
  border-bottom: 2px solid transparent;
  border-radius: 0;
  padding: 0 var(--gap-m);
}
.tab:hover { filter: none; color: var(--accent); }
.tab.is-active { color: var(--ink); border-bottom-color: var(--accent); font-weight: 600; }

.invited { margin-top: var(--gap-l); }

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

.sheet {
  background: var(--card);
  border: 1px solid var(--edge);
  border-radius: 8px;
  overflow-x: auto;
}
.rows { width: 100%; border-collapse: collapse; font-size: var(--text-small); }
.rows th, .rows td {
  text-align: left;
  padding: var(--gap-s) var(--gap-m);
  border-bottom: 1px solid var(--edge);
  white-space: nowrap;
}
.rows th {
  font-size: var(--text-caption);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--ink-faint);
  font-weight: 600;
}
.rows tbody tr:last-child td { border-bottom: none; }
.rows .mono { font-family: var(--font-mono); }
.rows .num { text-align: right; }
.rows .action { text-align: right; width: 1%; white-space: nowrap; }
/* The buttons of one row stand apart. They are appended by the script, so
   there is no whitespace between them to do it, and Change and Delete touched
   (reported 2026-09-20). */
.rows .action button + button { margin-left: var(--gap-s); }
.rows tr.is-disabled td { color: var(--ink-faint); }
#sessions tbody tr { cursor: pointer; }
#sessions tbody tr:hover { background: var(--page); }

.state-word.is-searching, .state-word.is-connecting { color: var(--waiting); }
.state-word.is-reading { color: var(--good); }
.state-word.is-ended { color: var(--ink-faint); }

/* ------------------------------------------------------------- one session */

.detail-head { align-items: center; margin-bottom: var(--gap-l); }
.detail-head h2 { font-family: var(--font-mono); font-size: var(--text-lead); margin: 0; }

.summary {
  display: flex;
  gap: var(--gap-xl);
  flex-wrap: wrap;
  margin-bottom: var(--gap-l);
  padding: var(--gap-m) var(--gap-l);
  background: var(--card);
  border: 1px solid var(--edge);
  border-radius: 8px;
}
.fact { display: flex; flex-direction: column; }
.fact .name { font-size: var(--text-caption); color: var(--ink-faint); text-transform: uppercase; letter-spacing: 0.04em; }
.fact .value { font-family: var(--font-mono); font-size: var(--text-lead); }

/* A meter's own row: its identity, then what is known about it, across the
   whole table. */
.readings tr.device td {
  background: var(--page);
  white-space: normal;
  padding-top: var(--gap-m);
}
.readings .identity { font-weight: 600; margin-right: var(--gap-m); }
.readings .facts { color: var(--ink-quiet); }
/* A meter whose last reading failed, before it has failed three in a row. The
   page's orange is its warning colour, as it is for a counter that went down. */
.readings .flag.is-warn { color: var(--falls); border-color: var(--falls); }
/* At the far end of the meter's own row, away from what is read. */
.readings tr.device td { position: relative; }
.readings .actions { float: right; display: inline-flex; gap: var(--gap-xs); margin: calc(-1 * var(--gap-xs)) 0; }

/* Mute and Solo: a toggle that is on is filled, as a pressed key. */
.readings .toggle.is-on { background: var(--accent); color: #fff; border-color: var(--accent); }

/* A meter the rounds do not read, and its values: kept, and faded. */
.readings tr.is-skipped td { color: var(--ink-faint); }
.readings tr.is-skipped .rises, .readings tr.is-skipped .falls { opacity: 0.5; }
.readings .flag.is-bad { color: var(--bad); border-color: var(--bad); }
.readings .flag {
  margin-right: var(--gap-m);
  font-size: var(--text-caption);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--ink-quiet);
  border: 1px solid var(--edge);
  border-radius: 999px;
  padding: 0 var(--gap-s);
}

/* The meter being asked right now: an accent bar on the left of its own row,
   and a label beside its identity. The dot pulses, so the row is found at a
   glance in a long table. */
.readings tr.device.is-reading td { box-shadow: inset 4px 0 0 var(--accent); }
.readings .now {
  display: inline-flex;
  align-items: center;
  gap: var(--gap-xs);
  margin-right: var(--gap-m);
  color: var(--accent);
  font-weight: 600;
}
.readings .now::before {
  content: '';
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
  animation: pulse 1s ease-in-out infinite alternate;
}
@keyframes pulse { from { opacity: 1; } to { opacity: 0.3; } }
@media (prefers-reduced-motion: reduce) { .readings .now::before { animation: none; } }

/* A quantity's row opens its chart. */
.readings tr.quantity { cursor: pointer; }
.readings tr.quantity:hover td { background: var(--page); }
.readings tr.quantity.is-open td { border-bottom-color: transparent; }
.readings td.chart { white-space: normal; padding-top: 0; }
.readings td.chart svg { display: block; width: 100%; height: 7.5rem; }
.readings td.chart polyline { fill: none; stroke: var(--accent); stroke-width: 2; vector-effect: non-scaling-stroke; }
.readings .chart-scale {
  display: flex;
  justify-content: space-between;
  font-size: var(--text-caption);
  color: var(--ink-faint);
}

/* A value that has moved since the first reading: the arrow and the colour say
   which way, and the number says how far. */
.readings .change { min-width: 8rem; }
.readings .rises { color: var(--good); font-family: var(--font-mono); font-weight: 600; }
.readings .falls { color: var(--falls); font-family: var(--font-mono); font-weight: 600; }
.readings .meter-mark { margin-right: var(--gap-m); cursor: default; }
/* A gauge's mark is a tilde, drawn larger than the table's text. At the
   table's size it is a faint stroke near the top of the line, where a
   counter's triangle is solid and easy to see. `line-height: 0` stops the
   larger glyph from making its row taller than a row carrying no mark:
   measured, a row grows from 29.4px to 37.6px without it, so only the rows
   that say something would have grown. */
.readings .moves {
  display: inline-block;
  vertical-align: middle;
  font-size: 1.5em;
  line-height: 0;
}
.readings .change span { cursor: default; }

#unresolved ul { margin: 0; padding-left: var(--gap-l); font-size: var(--text-small); }

/* How far the search is. The notice's own paragraphs keep no margin of their
   own, so the bar sits close under the sentence it belongs to. */
.notice p { margin: 0; }
.progress { margin-top: var(--gap-s); }
.progress .bar {
  height: 6px;
  background: var(--edge);
  border-radius: 999px;
  overflow: hidden;
}
.progress .done { height: 100%; width: 0; background: var(--accent); transition: width 0.4s ease; }
.progress .hint { margin-top: var(--gap-xs); font-size: var(--text-small); }

.wire { margin-top: var(--gap-l); }
.wire summary { cursor: pointer; color: var(--ink-quiet); font-size: var(--text-small); }
.wire pre {
  background: var(--card);
  border: 1px solid var(--edge);
  border-radius: 8px;
  padding: var(--gap-m);
  font-family: var(--font-mono);
  font-size: var(--text-caption);
  max-height: 20rem;
  overflow: auto;
  white-space: pre-wrap;
  word-break: break-all;
}

@media screen and (max-width: 640px) {
  body { padding: var(--gap-l) var(--gap-m); }
  .narrow, .minutes { width: 100%; }
  /* A phone has no room for two fields side by side, so the pair breaks and
     each of the two takes the width every other field has. */
  .row .pair { flex-wrap: wrap; }
  .row .pair > .field { flex: 1 1 100%; }
  .summary { gap: var(--gap-l); }
  /* **The masthead wraps.** A name, a role and two buttons do not fit 375px on
     one line, and a button whose label wraps inside a box of one height spills
     out of it -- which is the fault this bench's phone scan was written for.
     Found by that scan when Change my password was added beside Sign out
     (2026-09-20). */
  .who { flex-wrap: wrap; }
}