:root {
  color-scheme: light dark;
  --ink: #222;
  --bg: #fdfdfa;
  --muted: #6b6b6b;
  --border: #999;
  --surface: rgba(127,127,127,.05);
  --surface-strong: rgba(127,127,127,.09);
  --link: #4a2bbd;
  --code-bg: rgba(127,127,127,.12);
  --canvas-bg: #12121a;
  --accent: #4a2bbd;
  --warn: #9a7b2e;
  --panel: var(--bg);
  --panel2: var(--surface);
  --line: var(--border);
  --text: var(--ink);
}
@media (prefers-color-scheme: dark) {
  :root {
    --ink: #ddd;
    --bg: #14110f;
    --muted: #9b948c;
    --border: #555;
    --surface: rgba(127,127,127,.08);
    --surface-strong: rgba(127,127,127,.14);
    --link: #b8a6ff;
    --code-bg: rgba(127,127,127,.16);
    --accent: #b8a6ff;
    --warn: #d6b86a;
  }
}

html {
  font: 100%/1.6 Georgia, "Times New Roman", serif;
}
body {
  background: var(--bg);
  color: var(--ink);
}
a {
  color: var(--link);
}
.site-frame {
  min-height: 100vh;
}
.site-header, .site-footer {
  max-width: 76rem;
  width: 100%;
  margin: 0 auto;
  padding: 1rem 1.25rem;
  font: 1rem/1.6 Georgia, "Times New Roman", serif;
  color: var(--ink);
  background: var(--bg);
}
.site-header {
  border-bottom: 1px solid var(--border);
}
.site-footer {
  border-top: 1px solid var(--border);
  opacity: .75;
}
.site-header a, .site-footer a {
  color: inherit;
  text-decoration: none;
}
.site-header .subtitle {
  opacity: .6;
  font-size: .95rem;
}

.app {
  width: min(100%, 86rem);
  min-height: 100vh;
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(34rem, 1fr) minmax(22rem, 30rem);
  grid-template-rows: minmax(0, 1fr) auto;
  border-left: 1px solid var(--border);
  border-right: 1px solid var(--border);
  background: var(--bg);
  position: relative;
  overflow: clip;
}
.nav, .editor, .docs-drawer {
  background: var(--bg);
  border-color: var(--border);
}
.nav {
  position: fixed;
  top: 0;
  bottom: 0;
  left: 0;
  z-index: 20;
  width: min(22rem, 88vw);
  border-right: 1px solid var(--border);
  box-shadow: 1rem 0 2rem rgba(0,0,0,.16);
  transform: translateX(-100%);
  transition: transform 160ms ease;
  overflow: auto;
}
.nav.open {
  transform: translateX(0);
}
.drawer-close {
  margin-left: auto;
}
.editor {
  border-left: 1px solid var(--border);
}
.stage {
  background: var(--bg);
  min-height: 0;
}
.app-kicker {
  margin-bottom: .2rem;
  color: var(--muted);
  font: .76rem/1.35 Georgia, "Times New Roman", serif;
}
.app-kicker a {
  color: inherit;
  text-decoration: none;
}
.app-kicker a:hover {
  color: var(--link);
  text-decoration: underline;
}
.app-footer {
  grid-column: 1 / -1;
  display: flex;
  gap: .5rem;
  align-items: center;
  flex-wrap: wrap;
  padding: .7rem .85rem;
  border-top: 1px solid var(--border);
  color: var(--muted);
  background: var(--bg);
  font: .9rem/1.4 Georgia, "Times New Roman", serif;
}
.app-footer a {
  color: inherit;
  text-decoration: none;
}
.app-footer a:hover {
  color: var(--link);
  text-decoration: underline;
}
.topbar, .editor-head, .nav-head, .docs-head {
  border-color: var(--border);
  background: var(--bg);
}
.brand {
  color: var(--ink);
  font: 700 1rem/1.25 Georgia, "Times New Roman", serif;
}
.subtle, .card-choice small, .muted {
  color: var(--muted);
}
.nav-section {
  border-color: var(--border);
}
.nav-section h2, .panel-title {
  color: var(--muted);
  font-size: .68rem;
  letter-spacing: .14em;
  text-transform: uppercase;
}
button, .link-button {
  border: 1px solid var(--border);
  border-radius: 2px;
  background: transparent;
  color: var(--ink);
}
button:hover, .link-button:hover {
  background: var(--surface-strong);
  border-color: var(--ink);
}
button.primary {
  border-color: var(--link);
  color: var(--link);
}
button.icon {
  border-radius: 2px;
}
.card-choice {
  border-color: transparent;
  border-radius: 2px;
}
.card-choice.active, .pattern-strip button.active, button.active {
  background: var(--surface-strong);
  border-color: var(--link);
  color: var(--ink);
}
.canvas-wrap {
  background: var(--bg);
}
canvas {
  background: var(--canvas-bg);
  border-color: var(--border);
}
.playbar, .pattern-strip, .bindings, .source-editor {
  border-color: var(--border);
}
#scrub {
  accent-color: var(--link);
}
.hud {
  color: var(--muted);
  background: var(--bg);
}
.source-editor, .eval-editor, .binding-row input, .binding-row select, .const-row input {
  background: var(--code-bg);
  color: var(--ink);
  border-color: var(--border);
  border-radius: 2px;
}
.source-editor .cm-editor,
.eval-editor .cm-editor {
  color: var(--ink);
}
.bindings {
  background: var(--bg);
}
.bindings-modal {
  position: fixed;
  inset: 0;
  z-index: 30;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 1.25rem;
  background: rgba(0,0,0,.28);
}
.bindings-modal.open {
  display: flex;
}
.bindings-dialog {
  width: min(46rem, 96vw);
  max-height: min(44rem, 90vh);
  overflow: auto;
  border: 1px solid var(--border);
  background: var(--bg);
  box-shadow: 0 1rem 2.5rem rgba(0,0,0,.24);
}
.bindings-dialog .bindings {
  border-top: 0;
}
.binding-row, .const-row {
  font: .75rem/1.4 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}
.key-capture.capturing {
  color: var(--warn);
  border-color: var(--warn);
}
.docs-drawer {
  width: min(46rem, 92vw);
  box-shadow: -1rem 0 2rem rgba(0,0,0,.18);
}
.doc-body, #doc-body {
  color: var(--ink);
  font: 1rem/1.65 Georgia, "Times New Roman", serif;
}
.doc-body h1, .doc-body h2, .doc-body h3,
#doc-body h1, #doc-body h2, #doc-body h3 {
  color: var(--ink);
  font-family: Georgia, "Times New Roman", serif;
}
.doc-body h1, #doc-body h1 {
  font-size: 1.9rem;
}
.doc-body h2, #doc-body h2 {
  font-size: 1.35rem;
}
.doc-body h3, #doc-body h3 {
  font-size: 1.15rem;
}
.doc-body pre, #doc-body pre {
  background: var(--code-bg);
  border: 1px solid var(--border);
  border-radius: 2px;
}
.doc-body :not(pre) > code, #doc-body :not(pre) > code {
  background: var(--code-bg);
  border-radius: 2px;
}
.doc-body th, .doc-body td,
#doc-body th, #doc-body td {
  border-color: var(--border);
}

.reader-page {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}
.reader-shell {
  flex: 1;
  width: min(100%, 76rem);
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(13rem, 18rem) minmax(0, 42rem);
  gap: 2rem;
  padding: 1.75rem 1.25rem 4rem;
}
.reader-nav {
  position: sticky;
  top: 1rem;
  align-self: start;
  height: auto;
  padding: 0;
  border: 0;
  background: transparent;
}
.reader-nav .link-button {
  width: auto;
  display: inline-flex;
  margin-bottom: 1rem;
}
.reader-nav button {
  width: 100%;
  text-align: left;
  margin-bottom: .25rem;
}
.reader-main {
  padding: 0;
}
.reader-main article {
  max-width: 42rem;
}

@media (max-width: 980px) {
  .app {
    display: block;
    border: 0;
  }
  .app-footer {
    display: flex;
  }
  .nav {
    border-bottom: 0;
  }
  .editor {
    border-left: 0;
    border-top: 1px solid var(--border);
  }
  .reader-shell {
    display: block;
  }
  .reader-nav {
    position: static;
    margin-bottom: 1.5rem;
  }
}