/* Computational Sketchbook shell
   Shared by the hub and every self-contained work under /sketchbook/. */

nav.crumbs,
nav.sketchbook-crumbs {
  display: flex;
  align-items: center;
  gap: 8px;
  width: 100%;
  max-width: none !important;
  margin: 0;
  padding-block: 10px;
  padding-inline: max(var(--sketchbook-gutter), calc((100vw - var(--sketchbook-content-max)) / 2 + var(--sketchbook-gutter)));
  border: 0;
  background: #000;
  color: #eee;
  font: inherit !important;
  line-height: 1 !important;
  letter-spacing: .07em;
  text-transform: uppercase;
}

nav.crumbs a,
nav.sketchbook-crumbs a { color: inherit; text-underline-offset: 3px; }
nav.crumbs a:hover,
nav.sketchbook-crumbs a:hover { color: #fff; }
nav.crumbs span,
nav.sketchbook-crumbs span { color: #aaa; }

/* Shared reading face. */
body { font-family: inherit; }

/* Shared content measure: full-width navigation, 1480 px working field. */
:root {
  --sketchbook-sans: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace;
  --sketchbook-header: Garamond, "Adobe Garamond Pro", "EB Garamond", Georgia, serif;
  font-family: var(--sketchbook-sans);
  --sketchbook-content-max: 1480px;
  --sketchbook-gutter: 22px;
  /* Sketchbook colour system. */
  --site-paper: #f3f0e8;
  --site-mount: color-mix(in srgb, var(--site-paper) 90%, #000);
  --site-ink: #171717;
  --site-muted: #68665f;
  --site-rule: #aaa79d;
  --site-rule-light: #c9c4b8;
  --site-control: #ffffff;
  --site-accent: var(--site-ink);
  --site-range: #0c79d8;
  --site-control-height: 32px;
  --site-control-gutter: 7px;

  /* Compatibility aliases for independent sketch implementations. */
  --paper: var(--site-paper);
  --mount: var(--site-mount);
  --ink: var(--site-ink);
  --muted: var(--site-muted);
  --rule: var(--site-rule);
  --line: var(--site-rule-light);
  --control: var(--site-control);
  --accent: var(--site-accent);
  --control-range: var(--site-range);
}

html { font-size: 12px; }
html,
body { background: var(--site-paper) !important; color: var(--site-ink); }
body { font-size: 12px !important; }

/* Garamond is the shared heading face for the entire Sketchbook. */
.sketchbook-page :is(h1, h2, h3, h4, h5, h6) {
  font-family: var(--sketchbook-header);
  font-kerning: normal;
  letter-spacing: -.035em;
}

/* Components inherit the Sketchbook base face; title styling remains explicit below. */
nav.crumbs,
nav.sketchbook-crumbs,
.sketchbook-page :is(p, label, legend, button, select, input, output, .status, .note, .live-status, .sketchbook-page-footer) {
  font-family: var(--sketchbook-sans);
}

/* Navigation establishes the minimum readable type size for the studio UI. */
.sketchbook-page :is(p, label, legend, button, select, input, output, .status, .note, .live-status, .panel-heading, .sketchbook-page-footer, .research-note) {
  font-family: var(--sketchbook-sans) !important;
  font-size: max(12px, 1em);
}

/* Navigation sets the studio UI scale: every control uses the same 12px measure. */
.sketchbook-page :is(label, legend, button, select, input, output, .status, .note, .live-status, .panel-heading, .sketchbook-page-footer) {
  font-size: 12px !important;
}

/* Controls never inherit the larger text scale used by a work’s body copy. */
.sketchbook-page :is(.controls, .control-column, aside, fieldset, .view-tools, .presets, .actions, .zoom-controls, .pan-controls) :is(button, select, input, textarea, output, label, legend, span, p) {
  font: 12px/1.25 var(--sketchbook-sans) !important;
}

/* Shared control-field primitive. A work may set semantic colours, not geometry. */
.sketchbook-page :is(button, select, input[type="number"]) {
  min-block-size: var(--site-control-height) !important;
  padding-block: 6px !important;
  padding-inline: var(--site-control-gutter) !important;
  border: 1px solid var(--site-rule) !important;
  border-radius: 0;
  font: 12px/1 var(--sketchbook-sans);
  letter-spacing: 0;
}

/* Opt-in control help. No tooltip appears unless a work explicitly uses it. */
.control-tooltip { position: relative; display: inline-flex; vertical-align: middle; margin-left: 4px; }
.control-tooltip__trigger {
  display: inline-grid !important;
  place-items: center;
  min-block-size: 22px !important;
  inline-size: 22px;
  block-size: 22px !important;
  padding: 0 !important;
  border-color: var(--site-rule) !important;
  background: var(--site-control);
  color: var(--site-ink);
  font: inherit !important;
  line-height: 1 !important;
  letter-spacing: 0 !important;
  text-align: center !important;
}

/* Dense plotter controls otherwise give every button a rectangular measure. */
.sketchbook-page .workspace .control-column > aside .control-tooltip__trigger {
  display: inline-grid !important;
  place-items: center;
  inline-size: 22px;
  min-block-size: 22px !important;
  block-size: 22px !important;
  padding: 0 !important;
  line-height: 1 !important;
}
.control-tooltip__content {
  position: absolute;
  z-index: 20;
  inset-block-end: calc(100% + 6px);
  inset-inline-start: 0;
  display: none;
  inline-size: min(240px, calc(100vw - 44px));
  padding: 8px;
  border: 1px solid var(--site-rule);
  background: var(--site-paper);
  color: var(--site-ink);
  font: 12px/1.3 var(--sketchbook-sans);
  letter-spacing: 0;
  text-transform: none;
}
.control-tooltip:focus-within .control-tooltip__content,
.control-tooltip:hover .control-tooltip__content,
.control-tooltip__trigger[aria-expanded="true"] + .control-tooltip__content { display: block; }

/* Shared control-panel label: a practical fieldset measure without a second box. */
.sketchbook-page .workspace aside.controls-panel {
  position: relative;
  padding-top: 14px !important;
}
.controls-panel__title {
  position: absolute;
  inset-block-start: -8px;
  inset-inline-start: 8px;
  z-index: 1;
  padding-inline: 5px;
  background: var(--site-paper);
  color: var(--site-ink);
  font: 12px/1 var(--sketchbook-sans);
  letter-spacing: .16em;
  text-transform: uppercase;
}
.sketchbook-page,
main {
  width: min(100%, var(--sketchbook-content-max));
  max-width: var(--sketchbook-content-max) !important;
  margin-left: max(0px, calc((100vw - var(--sketchbook-content-max)) / 2)) !important;
  margin-right: 0 !important;
  padding-inline: var(--sketchbook-gutter) !important;
  padding-block: 22px 48px;
}

/* One page-header component, including the collection hub. Legacy aliases
   remain until every independent work has migrated its markup. */
.sketchbook-title,
.masthead,
.sketchbook-beckett-header,
.sketchbook-page-header {
  display: block;
  margin: 0;
  padding: 0 0 18px;
  border-top: 0;
  border-bottom: 1px solid var(--ink, #171717);
}

.sketchbook-title .eyebrow,
.masthead .eyebrow,
.sketchbook-beckett-header .eyebrow,
.sketchbook-page-header .eyebrow { display: none; }

.sketchbook-title h1,
.masthead h1,
.sketchbook-beckett-header h1,
.sketchbook-page-header h1 {
  margin: 0;
  font: 500 clamp(30px, 3vw, 44px)/.95 var(--sketchbook-header);
  letter-spacing: -.05em;
}

.sketchbook-title .intro,
.masthead .intro,
.sketchbook-beckett-header .intro,
.sketchbook-beckett-header p,
.sketchbook-page-header .intro,
.sketchbook-page-header p {
  max-width: 42rem;
  margin: 12px 0 0;
  font: 12px/1.35 var(--sketchbook-sans);
  letter-spacing: 0;
}

.sketchbook-page-header .sketchbook-source {
  margin: 11px 0 0;
  color: var(--site-muted);
  font: 12px/1.3 var(--sketchbook-sans);
  letter-spacing: .02em;
}
.sketchbook-page-header .sketchbook-source + .intro {
  margin-top: 5px;
  color: var(--site-muted);
  font-size: 12px;
}

.sketchbook-page-header { margin-bottom: 32px; }

/* Collection hub: the same page frame, with a deliberately compact catalogue. */
.sketchbook-page .head {
  width: min(100%, 720px);
  max-width: 720px;
}
.sketchbook-page .experiment-list,
.sketchbook-page .footer {
  width: min(100%, 720px);
  max-width: 720px;
  margin-left: 0;
  margin-right: 0;
}
.sketchbook-page .experiment-record {
  grid-template-columns: 1fr;
  gap: 8px;
}
.sketchbook-page .record-title {
  font-family: var(--sketchbook-header);
  font-kerning: normal;
  font-weight: 500;
  letter-spacing: -.035em;
}
.sketchbook-page .record-description { font-family: var(--sketchbook-sans); }

/* A compact, linked source note for works that grow from an identified reference. */
.sketchbook-page .research-note {
  margin-top: 34px;
  padding-top: 14px;
  border-top: 1px solid var(--site-rule);
  font: 12px/1.45 var(--sketchbook-sans);
}
.sketchbook-page .research-note h2 {
  margin: 0 0 8px;
  font: 500 24px/1 var(--sketchbook-header);
  letter-spacing: -.035em;
}
.sketchbook-page .research-note p { margin: 0 0 8px; }
.sketchbook-page .research-note a { color: inherit; text-underline-offset: 3px; }
.sketchbook-page .research-note__links { color: var(--site-muted); }

.sketchbook-page-footer {
  margin-top: 22px;
  border-top: 1px solid var(--rule, #aaa79d);
  padding-top: 10px;
  color: #777269;
  font: 12px/1.4 ui-monospace, SFMono-Regular, monospace;
}

@media (max-width: 760px) {
  :root { --sketchbook-gutter: 20px; }
  nav.crumbs,
  nav.sketchbook-crumbs { padding-inline: 20px; }
}