/* The bench: the family layer for tools rebuilt on the site's own tokens.

   A rebuilt tool loads site.css, then this file, then its own script. It
   has no <style> block, no style="" and no inline script, so it follows the
   light and dark themes like any company page and is ready for a
   `style-src 'self'` CSP.

   Every colour is a token from site.css. Run check-contrast.py after any
   change here: it audits this file in light and dark. */

/* A class that sets display must not bring back what `hidden` hides. The
   ported tools toggle results with the attribute, not inline styles. */
[hidden],
.bench [hidden] {
  display: none !important;
}

/* ---------- Head ---------- */

/* A tool is opened to be used, so its head is short: the work starts
   above the fold on a laptop. */
.page-head.page-head-tool {
  padding-bottom: clamp(1.5rem, 4vh, 2.5rem);
  gap: 0.8rem;
}
.page-head.page-head-tool h1 {
  font-size: clamp(2.3rem, 4.6vw, 3.4rem);
}
.page-head-tool .kicker {
  text-decoration: none;
}
.page-head-tool .kicker:hover {
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- Layout ---------- */

.bench {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 0 var(--gutter) clamp(3rem, 8vh, 5rem);
  display: grid;
  gap: 1rem;
}
.bench-split {
  grid-template-columns: minmax(0, 23rem) minmax(0, 1fr);
  align-items: start;
}
.bench-side {
  display: grid;
  gap: 1rem;
}
@media (max-width: 60rem) {
  .bench-split {
    grid-template-columns: minmax(0, 1fr);
  }
}

.bench-panel {
  border-radius: var(--r-md);
  padding: 1.15rem 1.25rem 1.25rem;
  min-width: 0;
}
.bench-panel-head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem 1rem;
  margin-bottom: 1rem;
}
.bench-panel-head h2 {
  font-size: 1.15rem;
  font-weight: 800;
  letter-spacing: -0.01em;
}
.bench-count {
  color: var(--ink-muted);
  font: 500 0.78rem/1.4 var(--font-mono);
}

/* ---------- Fields ---------- */

.bench-fields {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.85rem 0.75rem;
  margin: 0;
  padding: 0;
  border: 0;
}
.bench-fields + .bench-fields {
  margin-top: 0.85rem;
}
.bench-wide {
  grid-column: 1 / -1;
}
.bench-field {
  display: grid;
  gap: 0.35rem;
  min-width: 0;
  margin: 0;
  padding: 0;
  border: 0;
}
.bench-label {
  display: flex;
  align-items: baseline;
  gap: 0.4rem;
  padding: 0;
  color: var(--ink-muted);
  font: 500 0.78rem/1.3 var(--font-mono);
}
.bench-label b {
  color: var(--accent-ink);
  font-weight: 700;
}
.bench-input {
  width: 100%;
  min-height: 42px;
  padding: 0.5rem 0.7rem;
  border: 1px solid var(--line-strong);
  border-radius: var(--r-sm);
  background: var(--surface);
  color: var(--ink);
  font: 400 1rem/1.3 var(--font-mono);
  font-variant-numeric: tabular-nums;
  transition: border-color 0.15s var(--ease), box-shadow 0.15s var(--ease);
}
.bench-input::placeholder {
  color: var(--ink-faint);
  opacity: 1;
}
.bench-input:hover {
  border-color: var(--accent);
}
.bench-input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}
.bench-input[aria-invalid="true"] {
  border-color: var(--bad);
  box-shadow: 0 0 0 3px var(--bad-soft);
}
select.bench-input {
  appearance: none;
  padding-right: 2rem;
  background:
    linear-gradient(45deg, transparent 50%, var(--ink-muted) 50%) right 0.95rem center / 5px 5px no-repeat,
    linear-gradient(-45deg, transparent 50%, var(--ink-muted) 50%) right 0.65rem center / 5px 5px no-repeat,
    var(--surface);
  font-family: var(--font);
  cursor: pointer;
}
.bench-input-lg {
  min-height: 50px;
  font-size: 1.2rem;
}

/* A segmented choice, built from real radios so arrow keys work. */
.bench-seg {
  display: flex;
  padding: 3px;
  gap: 3px;
  border: 1px solid var(--line-strong);
  border-radius: var(--r-sm);
  background: var(--surface);
}
.bench-seg label {
  flex: 1;
  position: relative;
}
.bench-seg input {
  position: absolute;
  opacity: 0;
  inset: 0;
  margin: 0;
  cursor: pointer;
}
.bench-seg span {
  display: grid;
  place-items: center;
  min-height: 34px;
  padding: 0 0.6rem;
  border-radius: 7px;
  color: var(--ink-muted);
  font: 600 0.85rem/1 var(--font);
  white-space: nowrap;
  transition: background 0.15s var(--ease), color 0.15s var(--ease);
}
.bench-seg input:checked + span {
  background: var(--accent-fill);
  color: var(--ink-on-accent);
}
.bench-seg input:focus-visible + span {
  outline: 3px solid var(--accent);
  outline-offset: 2px;
}

/* ---------- Results and messages ---------- */

.bench-readout {
  display: grid;
  gap: 0.4rem;
  margin: 1rem 0;
}
.bench-read {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.7rem 0.85rem;
  border-radius: var(--r-sm);
  background: var(--surface-sunk);
}
.bench-read-main {
  background: var(--accent-soft);
}
.bench-read dt {
  color: var(--ink-muted);
  font-size: 0.88rem;
}
.bench-read dd {
  margin: 0;
  display: flex;
  align-items: baseline;
  gap: 0.75rem;
  color: var(--ink);
  font: 500 1.35rem/1 var(--font-mono);
  font-variant-numeric: tabular-nums;
}
.bench-read dd small {
  color: var(--ink-muted);
  font-size: 0.8rem;
}

.bench-msg {
  min-height: 1.4em;
  margin-top: 0.7rem;
  color: var(--ink-muted);
  font-size: 0.86rem;
}
.bench-msg[data-tone="bad"] {
  color: var(--bad);
}
.bench-msg[data-tone="warn"] {
  color: var(--warn);
}
.bench-msg[data-tone="ok"] {
  color: var(--ok);
}

.bench-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}
.bench-actions .btn-primary {
  flex: 1;
}
.bench-key {
  padding: 0.1rem 0.35rem;
  border: 1px solid currentColor;
  border-radius: 5px;
  font: 500 0.72rem/1 var(--font-mono);
}

/* ---------- Stats and table ---------- */

.bench-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(6.5rem, 1fr));
  gap: 1px;
  margin: 0 0 1rem;
  border-radius: var(--r-sm);
  overflow: hidden;
  background: var(--glass-line);
}
.bench-stats div {
  padding: 0.6rem 0.8rem;
  background: var(--surface-sunk);
}
.bench-stats dt {
  color: var(--ink-muted);
  font: 500 0.75rem/1.3 var(--font-mono);
}
.bench-stats dd {
  margin: 0.2rem 0 0;
  color: var(--ink);
  font: 500 1.05rem/1.2 var(--font-mono);
  font-variant-numeric: tabular-nums;
}
.bench-stats .is-bad dd {
  color: var(--bad);
}

/* A long log scrolls inside its panel, so the page stays put while a
   batch is entered and the newest row can be kept in view. */
.bench-table-wrap {
  max-height: min(70vh, 44rem);
  overflow: auto;
  border: 1px solid var(--glass-line);
  border-radius: var(--r-sm);
}
.bench-table {
  width: 100%;
  border-collapse: collapse;
  font: 400 0.88rem/1.35 var(--font-mono);
  font-variant-numeric: tabular-nums;
}
.bench-table th {
  position: sticky;
  top: 0;
  padding: 0.55rem 0.7rem;
  background: var(--surface-sunk);
  color: var(--ink-muted);
  font: 500 0.75rem/1.3 var(--font-mono);
  text-align: right;
  white-space: nowrap;
}
.bench-table td {
  padding: 0.5rem 0.7rem;
  border-top: 1px solid var(--glass-line);
  color: var(--ink);
  text-align: right;
  white-space: nowrap;
}
.bench-table th:first-child,
.bench-table td:first-child,
.bench-table .bench-text {
  text-align: left;
}
.bench-table tbody tr:hover td {
  background: var(--accent-soft);
}
.bench-table .bench-strong {
  font-weight: 700;
}
.bench-table .bench-dim {
  color: var(--ink-muted);
}
.bench-table tr.is-bad td {
  background: var(--bad-soft);
}
.bench-table tr.is-bad .bench-verdict {
  color: var(--bad);
  font-weight: 700;
}
.bench-table tr.is-editing td {
  background: var(--accent-soft);
}
.bench-row-actions {
  display: flex;
  justify-content: flex-end;
  gap: 2px;
}
.bench-icon {
  display: grid;
  place-items: center;
  width: 30px;
  height: 30px;
  padding: 0;
  border: 0;
  border-radius: 8px;
  background: transparent;
  color: var(--ink-muted);
  cursor: pointer;
}
.bench-icon:hover {
  background: var(--surface-sunk);
  color: var(--ink);
}
.bench-icon-text {
  width: auto;
  padding: 0 0.55rem;
  font: 500 0.78rem/1 var(--font-mono);
}
.bench-icon .i {
  width: 16px;
  height: 16px;
}

.bench-empty {
  padding: 2.5rem 1rem;
  border: 1px dashed var(--line-strong);
  border-radius: var(--r-sm);
  color: var(--ink-muted);
  text-align: center;
}

/* ---------- Notes under a tool ---------- */

.bench-notes {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(17rem, 1fr));
  gap: 1rem;
}
.bench-notes .bench-panel h2 {
  margin-bottom: 0.6rem;
  font-size: 1.05rem;
  font-weight: 800;
}
.bench-notes p {
  color: var(--ink-muted);
  font-size: 0.93rem;
}
.bench-notes p + p {
  margin-top: 0.6rem;
}
.bench-formula {
  margin: 0.75rem 0 0;
  padding: 0.7rem 0.85rem;
  border-radius: var(--r-sm);
  background: var(--surface-sunk);
  color: var(--ink);
  font: 400 0.9rem/1.8 var(--font-mono);
  white-space: pre-wrap;
}
.bench-figure {
  width: 100%;
  max-width: 16rem;
  margin: 0.25rem auto 0;
  color: var(--ink-muted);
}
.bench-figure .fig-ring {
  fill: none;
  stroke: currentColor;
  stroke-width: 1.5;
}
.bench-figure .fig-accent {
  fill: var(--accent-soft);
  stroke: var(--accent);
  stroke-width: 1.5;
}
.bench-figure .fig-dim {
  stroke: var(--accent);
  stroke-width: 1.2;
  stroke-dasharray: 3 3;
}
.bench-figure text {
  fill: var(--ink);
  font: 500 11px var(--font-mono);
}

/* ---------- Bands for the ported reference tools ----------
   The six older tools were laid out in full-width sections with an inner
   column; these replace the classes they borrowed from tools.css. */

.bench-band {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 0 var(--gutter) clamp(2.5rem, 6vh, 4rem);
}
.bench-band + .bench-band {
  padding-top: clamp(1rem, 3vh, 2rem);
}
.bench-inner {
  min-width: 0;
}
.bench-title {
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 900;
  letter-spacing: -0.02em;
}
.bench-sub {
  max-width: 60ch;
  color: var(--ink-muted);
}
.bench-kicker {
  margin-bottom: 1rem;
}
/* The tools' small mono labels. Never uppercase: they carry units, and
   text-transform turns µm into ΜM. */
.bench-flabel {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  color: var(--accent-ink);
  font: 500 0.78rem/1.4 var(--font-mono);
}
.bench-flabel::before {
  content: "";
  width: 18px;
  height: 1px;
  background: currentColor;
  opacity: 0.55;
  flex: none;
}

/* ---------- A photo stage (PhotoRule) ---------- */

.bench-split-wide {
  grid-template-columns: minmax(0, 20rem) minmax(0, 1fr);
}
@media (max-width: 60rem) {
  .bench-split-wide {
    grid-template-columns: minmax(0, 1fr);
  }
  /* On a phone the photo comes first: the panels explain it. */
  .bench-split-wide .bench-stage-panel {
    order: -1;
  }
}
.bench-step {
  display: inline-grid;
  place-items: center;
  width: 1.5rem;
  height: 1.5rem;
  margin-right: 0.35rem;
  border-radius: 50%;
  background: var(--accent-soft);
  color: var(--accent-ink);
  font: 700 0.8rem/1 var(--font-mono);
  vertical-align: 0.1em;
}
.bench-seg span:has(> .bench-hotkey) {
  grid-auto-flow: column;
  gap: 0.4rem;
}
.bench-hotkey {
  opacity: 0.75;
  font: 500 0.72rem/1 var(--font-mono);
}
.bench-stage-panel {
  padding: 0.75rem;
}
.bench-stage-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.6rem 1rem;
  margin-bottom: 0.75rem;
}
.bench-hint {
  flex: 1 1 14rem;
  color: var(--ink-muted);
  font-size: 0.9rem;
}
.bench-stage {
  position: relative;
  display: grid;
  place-items: center;
  min-height: 22rem;
  border-radius: var(--r-sm);
  background: var(--surface-sunk);
  overflow: hidden;
}
/* Width and height stay auto, so the photo keeps its shape inside both
   limits; the script maps pointer positions through the drawn size. */
.bench-canvas {
  display: block;
  max-width: 100%;
  max-height: 72vh;
  cursor: crosshair;
  touch-action: none;
}
.bench-canvas[data-hover] {
  cursor: grab;
}
.bench-canvas[data-drag] {
  cursor: grabbing;
}
.bench-loupe {
  position: absolute;
  top: 10px;
  left: 10px;
  width: 160px;
  height: 160px;
  border-radius: 50%;
  border: 2px solid var(--surface);
  box-shadow: var(--glass-shadow);
  pointer-events: none;
}
.bench-loupe[data-side="right"] {
  left: auto;
  right: 10px;
}
.bench-drop {
  display: grid;
  justify-items: center;
  gap: 0.4rem;
  width: calc(100% - 2rem);
  margin: 1rem;
  padding: 4rem 1rem;
  border: 1.5px dashed var(--line-strong);
  border-radius: var(--r-sm);
  background: transparent;
  color: var(--ink-muted);
  font: inherit;
  cursor: pointer;
}
.bench-drop:hover,
.bench-stage[data-dragover] .bench-drop {
  border-color: var(--accent);
  background: var(--accent-soft);
}
.bench-drop .i {
  width: 28px;
  height: 28px;
  transform: rotate(180deg);
  color: var(--accent-ink);
}
.bench-drop strong {
  color: var(--ink);
  font-size: 1rem;
}
.bench-drop span {
  font-size: 0.88rem;
}
.bench-stage-foot {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  min-height: 1.4em;
  margin-top: 0.5rem;
  padding: 0 0.25rem;
  color: var(--ink-muted);
  font: 400 0.8rem/1.4 var(--font-mono);
  font-variant-numeric: tabular-nums;
}

/* A numbered list of results with a swatch, a value and a delete. */
.bench-list {
  display: grid;
  gap: 2px;
  margin: 0 0 0.75rem;
  padding: 0;
  list-style: none;
  max-height: 22rem;
  overflow-y: auto;
}
.bench-list li {
  display: grid;
  grid-template-columns: auto 1fr auto auto;
  align-items: center;
  gap: 0.6rem;
  padding: 0.35rem 0.25rem 0.35rem 0.6rem;
  border-radius: 8px;
  background: var(--surface-sunk);
  font: 400 0.9rem/1.3 var(--font-mono);
  font-variant-numeric: tabular-nums;
}
.bench-swatch {
  width: 10px;
  height: 10px;
  border-radius: 3px;
  background: var(--swatch, var(--accent));
}
.bench-list .bench-dim {
  color: var(--ink-muted);
}
.bench-list strong {
  color: var(--ink);
  font-weight: 600;
}
.bench-empty-sm {
  padding: 1.25rem 0.75rem;
  margin-bottom: 0.25rem;
  font-size: 0.9rem;
}

/* ---------- CaloCalc mini ----------
   A calculator for a window about 340 px wide: no nav, no backdrop, the
   page background is the panel. Also what the always-on-top window shows. */

.mini-body {
  min-height: 100vh;
  margin: 0;
  background: var(--page);
}
.mini {
  display: grid;
  gap: 0.6rem;
  max-width: 26rem;
  margin: 0 auto;
  padding: 0.7rem 0.8rem 0.8rem;
}
.mini [hidden] {
  display: none !important;
}
.mini-head {
  display: flex;
  align-items: center;
  gap: 0.35rem;
}
.mini-mark {
  width: 22px;
  height: 22px;
}
.mini-head h1 {
  flex: 1;
  font-size: 1rem;
  font-weight: 800;
  letter-spacing: -0.01em;
}
.mini-head .bench-icon {
  height: 28px;
  text-decoration: none;
}
.mini-form {
  display: grid;
  gap: 0.45rem;
}
.mini-setup {
  display: grid;
  grid-template-columns: 1fr auto auto;
  gap: 0.4rem;
}
.mini-setup .bench-input {
  min-height: 38px;
  padding-block: 0.3rem;
  font-size: 0.9rem;
}
.mini-setup .bench-seg span {
  min-height: 30px;
  padding: 0 0.45rem;
  font-size: 0.8rem;
}
.mini-ring {
  display: grid;
  grid-template-columns: 4.6rem 1fr;
  align-items: center;
  gap: 0.5rem;
}
.mini-ring label {
  color: var(--ink-muted);
  font: 500 0.8rem/1.2 var(--font-mono);
}
.mini-ring label b {
  color: var(--accent-ink);
}
.mini-ring .bench-input {
  min-height: 40px;
  font-size: 1.1rem;
}
.mini-out {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.2rem 0.4rem;
  padding: 0.6rem 0.75rem;
  border-radius: var(--r-sm);
  background: var(--accent-soft);
}
.mini-num {
  color: var(--ink);
  font: 600 2rem/1 var(--font-mono);
  font-variant-numeric: tabular-nums;
}
.mini-unit {
  color: var(--ink-muted);
  font: 500 0.95rem/1 var(--font-mono);
}
.mini-sub {
  flex-basis: 100%;
  color: var(--ink-muted);
  font: 400 0.8rem/1.3 var(--font-mono);
}
.mini-foot {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}
.mini-away[hidden] {
  display: none;
}
.mini-away {
  justify-items: start;
  padding-top: 1.5rem;
  color: var(--ink-muted);
}
.mini-foot .bench-msg {
  flex: 1;
  margin: 0;
  font-size: 0.8rem;
}

/* Shown only when printing. */
.bench-print {
  display: none;
}

/* ---------- Print: the log as a record ----------
   Everything but the job header, the setup line, the stats and the table
   goes, and the page is black on white whatever the theme. */

@media print {
  :root {
    color-scheme: light;
  }
  body {
    background: #fff;
    color: #000;
    font-size: 10pt;
  }
  .backdrop,
  .nav,
  .footer,
  .skip,
  .page-head,
  .bench-side,
  .bench-notes,
  .bench-noprint,
  .bench-count,
  .bench-row-actions {
    display: none !important;
  }
  .bench,
  .bench-split {
    display: block;
    padding: 0;
    max-width: none;
  }
  .bench-panel,
  .glass {
    background: none;
    border: 0;
    box-shadow: none;
    padding: 0;
  }
  .bench-print {
    display: block;
    margin-bottom: 10pt;
  }
  .bench-print h1 {
    font: 700 15pt/1.2 var(--font);
    margin-bottom: 4pt;
  }
  .bench-print p {
    font: 9pt/1.5 var(--font-mono);
  }
  .bench-stats {
    background: #999;
  }
  .bench-stats div,
  .bench-table th,
  .bench-table td,
  .bench-table tr.is-bad td {
    background: #fff;
    color: #000;
  }
  .bench-table-wrap {
    max-height: none;
    overflow: visible;
    border-color: #999;
  }
  .bench-table td {
    border-top-color: #bbb;
  }
  .bench-table th {
    position: static;
  }
  .bench-table tr {
    break-inside: avoid;
  }
}