/*
 * The viewer.
 *
 * Marketing pages are read once; an instrument is looked at for an hour, on a television across a
 * room, so the chrome here is deliberately quieter than the landing page's. Same palette, same
 * three voices - Literata for names, JetBrains Mono for anything the record actually says, and
 * nothing decorative competing with the chart.
 *
 * Colours are the app's own, from ui/theme/Color.kt. The canvas needs them in JavaScript too, so
 * chart.js carries a matching copy; change one and change the other.
 */

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

/*
 * An author rule beats the user agent's [hidden] { display: none }, so every panel below that sets
 * its own display would otherwise ignore the attribute entirely and sit open on load.
 */
[hidden] { display: none !important; }

.viewer {
  --bone: #f7f6f1;
  --bone-dim: #efeee7;
  --raised: #ffffff;
  --ink: #1a1c1a;
  --ink-soft: #414942;
  --ink-faint: #656d65;
  --forest: #2a5138;
  --forest-deep: #0c2417;
  --sage: #8fc7a1;
  --sage-container: #cde6d5;
  --brass: #8a6420;
  --brass-surface: #f7eedc;
  --rule: #d8d7cd;
  --rule-strong: #b9b8ac;
  --shadow: 0 10px 34px rgba(20, 30, 22, .13);

  /* One multiplier for every size in the chrome, so "big screen" is a single number. */
  --ui: 1;
  --bar: calc(56px * var(--ui));
  --pad: calc(16px * var(--ui));
  --panel-w: calc(372px * var(--ui));

  --serif: Literata, Georgia, "Times New Roman", serif;
  --mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;

  position: fixed;
  inset: 0;
  display: grid;
  grid-template-rows: auto minmax(0, 1fr) auto;
  background: var(--bone);
  color: var(--ink);
  font-family: var(--serif);
  overflow: hidden;
  /* Stops a tablet bouncing the page when a pinch runs past the edge of the chart. */
  overscroll-behavior: none;
  padding: env(safe-area-inset-top) env(safe-area-inset-right) env(safe-area-inset-bottom) env(safe-area-inset-left);
}

.viewer[data-theme="dark"] {
  --bone: #10150f;
  --bone-dim: #161c15;
  --raised: #1a211a;
  --ink: #e0e4dd;
  --ink-soft: #b9c2b8;
  --ink-faint: #8b968b;
  --forest: #8fc7a1;
  --sage-container: #24402e;
  --brass: #e3c38c;
  --brass-surface: #2c2618;
  --rule: #2b332b;
  --rule-strong: #465146;
  --shadow: 0 10px 34px rgba(0, 0, 0, .45);
  color-scheme: dark;
}

.viewer[data-big="true"] { --ui: 1.3; }

.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}

/* Only one of the empty state, the chart and the index is ever live. */
.viewer[data-state="empty"] [data-when="loaded"],
.viewer[data-state="loaded"] [data-when="empty"] { display: none; }
.viewer[data-view="index"] [data-when="chart"] { display: none; }

/* -------------------------------------------------------------------- the bar */

.bar {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: calc(10px * var(--ui)) calc(14px * var(--ui));
  padding: calc(8px * var(--ui)) var(--pad);
  min-height: var(--bar);
  border-bottom: 1px solid var(--rule);
  background: var(--bone);
  min-width: 0;
}

.wordmark {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  color: inherit;
  text-decoration: none;
  font-size: calc(17px * var(--ui));
  letter-spacing: -.01em;
  flex: none;
}
.wordmark svg { width: calc(23px * var(--ui)); height: calc(23px * var(--ui)); }
.wordmark rect { fill: var(--forest); }
.wordmark circle { fill: var(--bone); }
.wordmark path { stroke: var(--bone); stroke-width: 1.5; fill: none; }
.wordmark:hover b { text-decoration: underline; text-underline-offset: 3px; }

.bar-tag {
  font-family: var(--mono);
  font-size: calc(11px * var(--ui));
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--brass);
  flex: none;
}

.bar-file {
  display: flex;
  align-items: baseline;
  gap: 10px;
  min-width: 0;
  font-family: var(--mono);
  font-size: calc(12px * var(--ui));
  color: var(--ink-faint);
}
.file-name {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  max-width: calc(230px * var(--ui));
}

.bar-spacer { flex: 1 1 auto; }

.bar-tools {
  display: flex;
  align-items: center;
  gap: calc(10px * var(--ui));
  min-width: 0;
}

/*
 * Big screen scales every control by a third, which is the point of it, but the bar still has to
 * fit a laptop. The file name is the first thing worth losing: it is on screen only to confirm
 * which file is open, and the chart itself already answers that.
 */
.viewer[data-big="true"] .bar-file { display: none; }
@media (max-width: 1280px) { .bar-file { display: none; } }

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

.tool, .icon, .btn, .segmented button, .menu-panel button {
  font-family: var(--mono);
  font-size: calc(12.5px * var(--ui));
  color: var(--ink-soft);
  background: var(--raised);
  border: 1px solid var(--rule);
  border-radius: 999px;
  padding: calc(8px * var(--ui)) calc(14px * var(--ui));
  cursor: pointer;
  white-space: nowrap;
  transition: border-color .12s, color .12s, background .12s;
}
.tool:hover, .icon:hover, .segmented button:hover { border-color: var(--rule-strong); color: var(--ink); }
.tool[aria-expanded="true"] { border-color: var(--forest); color: var(--forest); }

.icon {
  width: calc(32px * var(--ui));
  height: calc(32px * var(--ui));
  padding: 0;
  display: grid;
  place-items: center;
  font-size: calc(15px * var(--ui));
}

.link-btn {
  font-family: var(--mono);
  font-size: calc(12px * var(--ui));
  background: none;
  border: 0;
  padding: 0;
  color: var(--ink-faint);
  text-decoration: underline;
  text-underline-offset: 3px;
  cursor: pointer;
}
.link-btn:hover { color: var(--ink); }

.segmented {
  display: inline-flex;
  background: var(--raised);
  border: 1px solid var(--rule);
  border-radius: 999px;
  padding: 2px;
  gap: 2px;
}
.segmented button { border: 0; background: none; padding: calc(6px * var(--ui)) calc(13px * var(--ui)); }
.segmented button[aria-pressed="true"] { background: var(--forest); color: #fff; }
.viewer[data-theme="dark"] .segmented button[aria-pressed="true"] { color: var(--forest-deep); }

.zoom { display: flex; align-items: center; gap: calc(6px * var(--ui)); }
.zoom-level {
  font-family: var(--mono);
  font-size: calc(11.5px * var(--ui));
  color: var(--ink-faint);
  min-width: calc(44px * var(--ui));
  text-align: center;
}

/* -------------------------------------------------------------------- search */

.search { position: relative; flex: 0 1 calc(230px * var(--ui)); min-width: calc(130px * var(--ui)); }
.search input {
  width: 100%;
  font-family: var(--mono);
  font-size: calc(12.5px * var(--ui));
  color: var(--ink);
  background: var(--raised);
  border: 1px solid var(--rule);
  border-radius: 999px;
  padding: calc(8px * var(--ui)) calc(14px * var(--ui));
}
.search input:focus-visible { outline: 2px solid var(--forest); outline-offset: 1px; border-color: transparent; }

.search-results {
  position: absolute;
  top: calc(100% + 6px);
  left: 0;
  right: 0;
  z-index: 40;
  margin: 0;
  padding: 5px;
  list-style: none;
  max-height: calc(52vh);
  overflow-y: auto;
  background: var(--raised);
  border: 1px solid var(--rule);
  border-radius: 14px;
  box-shadow: var(--shadow);
}
.search-results li { margin: 0; }
.search-results button {
  display: block;
  width: 100%;
  text-align: left;
  border: 0;
  background: none;
  border-radius: 9px;
  padding: calc(8px * var(--ui)) calc(10px * var(--ui));
  cursor: pointer;
  color: var(--ink);
  font-family: var(--serif);
  font-size: calc(14px * var(--ui));
}
.search-results button:hover, .search-results button:focus-visible { background: var(--bone-dim); outline: none; }
.search-results .row-dates {
  font-family: var(--mono);
  font-size: calc(11px * var(--ui));
  color: var(--ink-faint);
  margin-left: 8px;
}
.search-results .row-none { padding: 10px; font-family: var(--mono); font-size: 12px; color: var(--ink-faint); }
.search-results em { color: var(--brass); font-style: italic; }

/* -------------------------------------------------------------------- menu */

.menu { position: relative; }
.menu-panel {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  z-index: 40;
  min-width: calc(210px * var(--ui));
  padding: 6px;
  background: var(--raised);
  border: 1px solid var(--rule);
  border-radius: 14px;
  box-shadow: var(--shadow);
  display: grid;
  gap: 2px;
}
.menu-panel button {
  border: 0;
  background: none;
  border-radius: 9px;
  text-align: left;
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: calc(9px * var(--ui)) calc(11px * var(--ui));
}
.menu-panel button:hover { background: var(--bone-dim); }
.menu-panel hr { border: 0; border-top: 1px solid var(--rule); margin: 5px 8px; }
.menu-panel .tick { color: var(--forest); visibility: hidden; }
.menu-panel [aria-checked="true"] .tick { visibility: visible; }

/* -------------------------------------------------------------------- stage */

.stage { position: relative; min-height: 0; }

canvas {
  display: block;
  width: 100%;
  height: 100%;
  /* The chart handles its own pan and pinch; letting the browser scroll too fights the gesture. */
  touch-action: none;
  cursor: grab;
}
canvas:focus-visible { outline: 2px solid var(--forest); outline-offset: -2px; }

.hint {
  position: absolute;
  left: 50%;
  bottom: calc(18px * var(--ui));
  transform: translateX(-50%);
  margin: 0;
  padding: calc(9px * var(--ui)) calc(16px * var(--ui));
  border-radius: 999px;
  background: var(--raised);
  border: 1px solid var(--rule);
  box-shadow: var(--shadow);
  font-family: var(--mono);
  font-size: calc(12px * var(--ui));
  color: var(--ink-soft);
  pointer-events: none;
  max-width: min(90%, 560px);
  text-align: center;
}

.busy {
  position: absolute;
  inset: 0;
  display: grid;
  place-content: center;
  gap: 14px;
  justify-items: center;
  background: color-mix(in srgb, var(--bone) 88%, transparent);
  font-family: var(--mono);
  font-size: 13px;
  color: var(--ink-faint);
  z-index: 30;
}
.busy span {
  width: 26px; height: 26px; border-radius: 50%;
  border: 2px solid var(--rule); border-top-color: var(--forest);
  animation: spin .8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* -------------------------------------------------------------------- opener */

.opener {
  position: absolute;
  inset: 0;
  overflow-y: auto;
  display: grid;
  place-items: center;
  padding: clamp(20px, 4vw, 48px);
}
.opener-inner { max-width: 660px; width: 100%; }

.eyebrow {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--brass);
  margin: 0 0 18px;
}
.opener h1 {
  font-size: clamp(30px, 4.4vw, 46px);
  line-height: 1.1;
  letter-spacing: -.02em;
  font-weight: 700;
  margin: 0 0 18px;
}
.lede {
  font-size: clamp(16px, 1.5vw, 18px);
  line-height: 1.62;
  color: var(--ink-soft);
  margin: 0 0 30px;
  max-width: 56ch;
}

.drop {
  border: 2px dashed var(--rule-strong);
  border-radius: 20px;
  padding: clamp(26px, 4vw, 44px);
  text-align: center;
  background: var(--bone-dim);
  transition: border-color .15s, background .15s;
}
.drop.over { border-color: var(--forest); background: var(--sage-container); }
.drop-title { margin: 0 0 6px; font-size: 19px; }
.drop-title b { color: var(--brass); font-style: italic; }
.drop-or {
  margin: 0 0 16px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--ink-faint);
}
.drop .btn { margin: 0 5px; }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-size: 14px;
  padding: 13px 24px;
}
.btn.primary { background: var(--forest); border-color: var(--forest); color: #fff; }
.viewer[data-theme="dark"] .btn.primary { color: var(--forest-deep); }
.btn.primary:hover { background: var(--forest-deep); border-color: var(--forest-deep); color: #fff; }
.btn.quiet { background: transparent; }

.assurance {
  display: flex;
  gap: 12px;
  margin: 26px 0 0;
  font-size: 14.5px;
  line-height: 1.6;
  color: var(--ink-soft);
  background: var(--brass-surface);
  border-radius: 14px;
  padding: 16px 18px;
}
.assurance > span:first-child { color: var(--brass); }
.assurance b { color: var(--ink); }

.opener-error {
  margin: 18px 0 0;
  padding: 14px 16px;
  border-radius: 12px;
  border: 1px solid var(--brass);
  background: var(--brass-surface);
  color: var(--ink);
  font-size: 14.5px;
  line-height: 1.55;
}

.opener-foot {
  margin: 22px 0 0;
  font-family: var(--mono);
  font-size: 12px;
  line-height: 1.7;
  color: var(--ink-faint);
}
.opener-foot a, .panel a { color: inherit; }

/* -------------------------------------------------------------------- index view */

.index { position: absolute; inset: 0; overflow-y: auto; }
.index-inner { max-width: 980px; margin: 0 auto; padding: clamp(22px, 3.4vw, 44px) clamp(18px, 3vw, 36px) 80px; }
.index-heading { font-size: clamp(24px, 3vw, 33px); letter-spacing: -.02em; margin: 0 0 8px; }
.index-note {
  font-family: var(--mono);
  font-size: 12.5px;
  color: var(--ink-faint);
  margin: 0 0 26px;
  line-height: 1.6;
}

.index-list { list-style: none; margin: 0; padding: 0; }
.index-group {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--brass);
  padding: 26px 0 10px;
  border-bottom: 1px solid var(--rule);
  margin-bottom: 2px;
}
.index-row {
  display: grid;
  grid-template-columns: minmax(0, 15rem) minmax(0, 1fr);
  gap: 4px 22px;
  width: 100%;
  text-align: left;
  border: 0;
  border-bottom: 1px solid var(--rule);
  background: none;
  padding: 13px 10px;
  cursor: pointer;
  color: inherit;
  font-family: var(--serif);
}
.index-row:hover, .index-row:focus-visible { background: var(--bone-dim); outline: none; }
.index-row .who { font-size: 16.5px; font-weight: 600; }
.index-row .who em { color: var(--brass); font-style: italic; font-weight: 600; }
.index-row .when { font-family: var(--mono); font-size: 11.5px; color: var(--ink-faint); }
.index-row .how { font-size: 14px; color: var(--ink-soft); line-height: 1.55; align-self: center; }
.index-row .how b { font-weight: 600; color: var(--ink); }
.index-row .none { color: var(--brass); font-style: italic; }

/* -------------------------------------------------------------------- panels */

.panel, .relate {
  position: absolute;
  top: var(--pad);
  right: var(--pad);
  bottom: var(--pad);
  width: var(--panel-w);
  max-width: calc(100vw - var(--pad) * 2);
  overflow-y: auto;
  overscroll-behavior: contain;
  background: var(--raised);
  border: 1px solid var(--rule);
  border-radius: 18px;
  box-shadow: var(--shadow);
  padding: calc(20px * var(--ui));
  z-index: 20;
}
.panel-close {
  position: absolute;
  top: calc(12px * var(--ui));
  right: calc(12px * var(--ui));
  width: calc(30px * var(--ui));
  height: calc(30px * var(--ui));
  border: 0;
  border-radius: 50%;
  background: var(--bone-dim);
  color: var(--ink-soft);
  font-size: calc(19px * var(--ui));
  line-height: 1;
  cursor: pointer;
}
.panel-close:hover { background: var(--rule); color: var(--ink); }

.p-head { display: flex; gap: 14px; align-items: center; margin: 0 34px 18px 0; }
.p-photo {
  width: calc(58px * var(--ui));
  height: calc(58px * var(--ui));
  border-radius: 50%;
  object-fit: cover;
  flex: none;
  background: var(--sage-container);
}
.p-photo.blank {
  display: grid;
  place-items: center;
  font-family: var(--serif);
  font-size: calc(20px * var(--ui));
  font-weight: 600;
  color: var(--forest);
}
.p-photo.unknown { background: var(--brass-surface); color: var(--brass); }
.p-name { font-size: calc(22px * var(--ui)); line-height: 1.2; margin: 0; letter-spacing: -.01em; }
.p-name em { color: var(--brass); font-style: italic; }
.p-when { font-family: var(--mono); font-size: calc(12px * var(--ui)); color: var(--ink-faint); margin: 5px 0 0; }

.p-facts { margin: 0 0 18px; padding: 0; display: grid; gap: 1px; background: var(--rule); border-radius: 10px; overflow: hidden; }
.p-facts > div { display: grid; grid-template-columns: 5.6rem minmax(0, 1fr); gap: 12px; background: var(--raised); padding: calc(9px * var(--ui)) calc(11px * var(--ui)); }
.p-facts dt { font-family: var(--mono); font-size: calc(10.5px * var(--ui)); letter-spacing: .1em; text-transform: uppercase; color: var(--ink-faint); }
.p-facts dd { margin: 0; font-size: calc(13.5px * var(--ui)); }

.p-notes {
  margin: 0 0 18px;
  padding: calc(13px * var(--ui));
  border-radius: 10px;
  background: var(--bone-dim);
  font-size: calc(14px * var(--ui));
  line-height: 1.6;
  color: var(--ink-soft);
  white-space: pre-wrap;
}

.p-group { margin: 0 0 16px; }
.p-group h3 {
  font-family: var(--mono);
  font-size: calc(10.5px * var(--ui));
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--brass);
  margin: 0 0 8px;
  font-weight: 500;
}
.p-rel { list-style: none; margin: 0; padding: 0; display: grid; gap: 2px; }
.p-rel button {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 12px;
  align-items: baseline;
  width: 100%;
  text-align: left;
  border: 0;
  background: none;
  border-radius: 8px;
  padding: calc(7px * var(--ui)) calc(9px * var(--ui));
  cursor: pointer;
  color: inherit;
  font-family: var(--serif);
  font-size: calc(14.5px * var(--ui));
}
.p-rel button:hover, .p-rel button:focus-visible { background: var(--bone-dim); outline: none; }
.p-rel em { color: var(--brass); font-style: italic; }
.p-rel .kind { font-family: var(--mono); font-size: calc(10.5px * var(--ui)); color: var(--ink-faint); text-align: right; }

.p-actions { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 20px; }
.p-alone {
  margin: 0 0 16px;
  padding: calc(13px * var(--ui));
  border-radius: 10px;
  background: var(--brass-surface);
  font-size: calc(13.5px * var(--ui));
  line-height: 1.6;
}

/* -------------------------------------------------------------------- relate */

.relate h2 { font-size: calc(20px * var(--ui)); margin: 0 34px 8px 0; letter-spacing: -.01em; }
.relate-help { font-size: calc(13.5px * var(--ui)); line-height: 1.6; color: var(--ink-soft); margin: 0 0 18px; }
.relate-picks { display: grid; gap: 12px; margin-bottom: 18px; }
.relate-pick { position: relative; }
.relate-pick label {
  display: block;
  font-family: var(--mono);
  font-size: calc(10.5px * var(--ui));
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--ink-faint);
  margin-bottom: 6px;
}
.relate-pick input {
  width: 100%;
  font-family: var(--serif);
  font-size: calc(15px * var(--ui));
  color: var(--ink);
  background: var(--bone-dim);
  border: 1px solid var(--rule);
  border-radius: 10px;
  padding: calc(10px * var(--ui)) calc(12px * var(--ui));
}
.relate-pick input:focus-visible { outline: 2px solid var(--forest); outline-offset: 1px; }

.relate-answer:empty { display: none; }
.r-term {
  font-size: calc(17px * var(--ui));
  line-height: 1.5;
  margin: 0 0 16px;
  padding: calc(15px * var(--ui));
  border-radius: 12px;
  background: var(--sage-container);
  color: var(--forest-deep);
}
.viewer[data-theme="dark"] .r-term { color: var(--ink); }
.r-term b { font-weight: 700; }
.r-none { background: var(--brass-surface); color: var(--ink); }
.r-chain { list-style: none; margin: 0; padding: 0; display: grid; gap: 0; }
.r-chain li { display: grid; grid-template-columns: auto minmax(0, 1fr); gap: 12px; align-items: baseline; padding: 7px 0; }
.r-chain .step {
  font-family: var(--mono);
  font-size: calc(10.5px * var(--ui));
  color: var(--ink-faint);
  text-transform: uppercase;
  letter-spacing: .1em;
  white-space: nowrap;
}
.r-chain .who { font-size: calc(14.5px * var(--ui)); }
.r-chain .who em { color: var(--brass); font-style: italic; }
.r-chain li + li { border-top: 1px solid var(--rule); }

/* -------------------------------------------------------------------- shortcuts sheet */

.sheet {
  position: absolute;
  inset: 0;
  z-index: 50;
  display: grid;
  place-items: center;
  padding: 20px;
  background: color-mix(in srgb, var(--forest-deep) 42%, transparent);
}
.sheet-inner {
  position: relative;
  width: min(460px, 100%);
  max-height: 100%;
  overflow-y: auto;
  background: var(--raised);
  border-radius: 18px;
  padding: calc(24px * var(--ui));
  box-shadow: var(--shadow);
}
.sheet h2 { font-size: calc(20px * var(--ui)); margin: 0 0 16px; }
.keys { margin: 0; display: grid; gap: 1px; background: var(--rule); border-radius: 10px; overflow: hidden; }
.keys > div { display: grid; grid-template-columns: 8.5rem minmax(0, 1fr); gap: 14px; background: var(--raised); padding: 10px 12px; align-items: center; }
.keys dt { display: flex; gap: 4px; }
.keys dd { margin: 0; font-size: calc(14px * var(--ui)); color: var(--ink-soft); }
kbd {
  font-family: var(--mono);
  font-size: calc(11px * var(--ui));
  background: var(--bone-dim);
  border: 1px solid var(--rule);
  border-bottom-width: 2px;
  border-radius: 5px;
  padding: 3px 7px;
  color: var(--ink);
}

/* -------------------------------------------------------------------- status */

.status {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
  padding: calc(9px * var(--ui)) var(--pad);
  border-top: 1px solid var(--rule);
  background: var(--bone);
  font-family: var(--mono);
  font-size: calc(11.5px * var(--ui));
  color: var(--ink-faint);
}
.viewer[data-status="off"] .status { display: none; }

.counts b { color: var(--ink); font-weight: 500; }
.counts .sep { color: var(--rule-strong); margin: 0 7px; }
.counts .warn { color: var(--brass); }

.legend { display: flex; gap: 18px; flex-wrap: wrap; }
.key { display: inline-flex; align-items: center; gap: 7px; }
.key i { display: inline-block; flex: none; }
.k-unknown { width: 20px; height: 12px; border: 1.5px dashed var(--brass); border-radius: 3px; background: var(--brass-surface); }
.k-couple { width: 20px; height: 7px; border-top: 1.5px solid var(--forest); border-bottom: 1.5px solid var(--forest); }
.k-descent { width: 20px; height: 10px; border-left: 1.5px solid var(--rule-strong); border-bottom: 1.5px solid var(--rule-strong); }
.k-sib { width: 20px; height: 8px; border: 1.5px dashed var(--rule-strong); border-bottom: 0; }
.k-alone { width: 20px; height: 12px; border: 1.5px dashed var(--rule-strong); border-radius: 3px; }

/* -------------------------------------------------------------------- narrow screens */

/* The relate button carries the longest label in the bar, so it is the first to lose its words. */
@media (max-width: 1200px) {
  .tool#relate-btn { font-size: 0; padding: calc(9px * var(--ui)) calc(13px * var(--ui)); }
  .tool#relate-btn::before { content: "⇄"; font-size: calc(14px * var(--ui)); }
}

@media (max-width: 900px) {
  .bar { gap: 8px; padding-inline: 10px; }
  .bar-tag, .bar-file { display: none; }
  .bar-tools { gap: 7px; }
  .zoom .tool { padding: calc(8px * var(--ui)) calc(11px * var(--ui)); }
  .zoom-level { display: none; }
  .legend { display: none; }

  /* A side panel on a phone leaves no chart; a sheet from the bottom leaves half of it. */
  .panel, .relate {
    top: auto;
    left: 8px;
    right: 8px;
    bottom: 8px;
    width: auto;
    max-height: 62%;
    border-radius: 16px 16px 12px 12px;
  }
  .index-row { grid-template-columns: minmax(0, 1fr); gap: 3px; }
}

@media (max-width: 700px) {
  /* Below this the controls cannot share a line with the wordmark without being clipped, so they
     take a row of their own rather than running off the edge of the screen. */
  .bar-tools { flex: 1 1 100%; justify-content: space-between; flex-wrap: wrap; gap: 6px; }
  .search { flex: 1 1 100%; order: -1; }
  .segmented button { padding: calc(6px * var(--ui)) calc(9px * var(--ui)); }
  /* Trimmed so the whole control set still lands on one row at 390px rather than spilling
     onto a third and eating the chart. */
  .icon { width: calc(30px * var(--ui)); height: calc(30px * var(--ui)); }
  .zoom { gap: 4px; }
  .zoom .tool, .menu .tool { padding: calc(8px * var(--ui)) calc(10px * var(--ui)); }
  .status { font-size: calc(10.5px * var(--ui)); }
}

@media (prefers-reduced-motion: reduce) {
  * { animation-duration: .01ms !important; transition-duration: .01ms !important; }
}