/* Theme for the concepts site. */
:root {
  --bg: #0c0b0a;
  --raised: #1b1916;
  --inset: #100e0c;
  --bay: #12110f;
  --line: #332f2a;
  --line-strong: #4a433b;
  --text: #f6f1e8;
  --muted: #c9c0b4;
  --soft: #aea497;
  --accent: #ff8a45;
  --accent-2: #ffc7a3;
  --fill: #ff6a1a;
  --fill-ink: #1a0c06;
  --brass: #c6a36a;
  --olive: #9aaa86;
  --paper: #efeae2;
  --mark: rgba(255, 138, 69, 0.28);
  --gap: rgba(255, 138, 69, 0.12);
  --shadow: 0 14px 32px rgba(0, 0, 0, 0.32);
  --ease: cubic-bezier(0.2, 0.7, 0.2, 1);
}

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

[hidden] { display: none !important; }

html { color-scheme: dark; }

body.concepts {
  position: relative;
  margin: 0;
  background:
    radial-gradient(1100px 480px at 88% -12%, rgba(255, 106, 26, 0.09), transparent 58%),
    radial-gradient(820px 380px at -12% 8%, rgba(198, 163, 106, 0.06), transparent 52%),
    var(--bg);
  color: var(--text);
  font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  font-size: 1rem;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

body.concepts::before {
  content: "";
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, #6e3a1c, var(--fill) 38%, var(--brass) 72%, #6e3a1c);
  z-index: 5;
}

body.concepts::after {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background-image:
    linear-gradient(rgba(255, 244, 230, 0.018) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 244, 230, 0.018) 1px, transparent 1px);
  background-size: 40px 40px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.65), transparent 78%);
}

::selection { background: rgba(255, 138, 69, 0.35); color: var(--text); }

.skip {
  position: absolute;
  left: 0.75rem;
  top: 0.55rem;
  z-index: 20;
  padding: 0.55rem 0.8rem;
  color: var(--fill-ink);
  background: var(--fill);
  font-size: 0.85rem;
  font-weight: 600;
  text-decoration: none;
  transform: translateY(-160%);
}

.skip:focus { transform: none; }

#content:focus { outline: none; }

.wrap {
  position: relative;
  z-index: 1;
  max-width: 64rem;
  margin: 0 auto;
  padding: 1.05rem 1.2rem 3.25rem;
}

.top {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 0.35rem 1.25rem;
  padding-bottom: 0.35rem;
  margin-bottom: 1.45rem;
  border-bottom: 1px solid var(--line);
}

.brand {
  display: inline-flex;
  align-items: center;
  line-height: 0;
  text-decoration: none;
}

.brand img {
  display: block;
  height: 2.05rem;
  width: auto;
}

.nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.15rem 0.85rem;
}

.nav a {
  display: inline-flex;
  align-items: center;
  min-height: 2.75rem;
  color: var(--muted);
  text-decoration: none;
  font-size: 0.72rem;
  font-weight: 650;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

.nav a:hover,
.nav a[aria-current="page"] { color: var(--text); }

.nav a[aria-current="page"] { box-shadow: inset 0 -2px 0 var(--fill); }

h1 {
  margin: 0.2rem 0 0.6rem;
  max-width: 16em;
  font-size: clamp(2rem, 4.4vw, 3.15rem);
  font-weight: 620;
  letter-spacing: -0.038em;
  line-height: 1.04;
  text-wrap: balance;
}

h2 {
  margin: 0 0 0.7rem;
  font-size: 0.74rem;
  font-weight: 650;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

h2 .num {
  color: var(--accent);
  margin-right: 0.5rem;
  font-variant-numeric: tabular-nums;
}

p { margin: 0 0 0.75rem; }

.kicker {
  margin: 0;
  color: var(--accent);
  font-size: 0.68rem;
  font-weight: 650;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.lede {
  max-width: 38rem;
  margin-bottom: 0;
  color: var(--muted);
  font-size: 1.0625rem;
  line-height: 1.5;
  text-wrap: pretty;
}

.fine {
  color: var(--muted);
  font-size: 0.92rem;
}

.section { margin-top: 1.75rem; }

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.7rem;
}

.feature,
.next-card,
.result,
.track-col,
.split article {
  background:
    linear-gradient(180deg, rgba(255, 244, 230, 0.045), transparent 38%),
    var(--raised);
  border: 1px solid var(--line);
  box-shadow: inset 0 1px 0 rgba(255, 244, 230, 0.05), var(--shadow);
}

.feature {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  min-height: 9.4rem;
  padding: 0.95rem 1rem 1rem;
  color: var(--text);
  text-decoration: none;
  transition: border-color 180ms var(--ease), transform 180ms var(--ease), box-shadow 180ms var(--ease);
}

.feature::before,
.next-card::before,
.map-node::before {
  content: "";
  position: absolute;
  left: 0.85rem;
  right: 0.85rem;
  top: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
  opacity: 0.35;
  transform: scaleX(0.45);
  transform-origin: center;
  transition: transform 200ms var(--ease), opacity 200ms var(--ease);
}

.feature:hover,
.feature:focus-visible {
  border-color: #8a5334;
  box-shadow: inset 0 1px 0 rgba(255, 244, 230, 0.07), 0 16px 34px rgba(0, 0, 0, 0.38);
}

.feature:hover::before,
.feature:focus-visible::before,
.next-card:hover::before,
.next-card:focus-visible::before,
.map-node:hover::before,
.map-node:focus-visible::before {
  opacity: 1;
  transform: scaleX(1);
}

.feature strong {
  font-size: 1.18rem;
  font-weight: 620;
  letter-spacing: -0.02em;
}

.feature span,
.track,
.next-card span {
  color: var(--accent);
  font-size: 0.68rem;
  font-weight: 650;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.feature p {
  margin: 0;
  color: var(--muted);
  font-size: 0.95rem;
}

.next-module {
  padding: 0.85rem 0.95rem 0.95rem;
  background:
    linear-gradient(180deg, rgba(255, 138, 69, 0.05), transparent 42%),
    var(--bay);
  border: 1px solid var(--line);
  border-left: 3px solid var(--fill);
  box-shadow: inset 0 1px 0 rgba(255, 244, 230, 0.04);
}

.next-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 0.75rem 1rem;
  margin-bottom: 0.35rem;
}

.next-head h2 { margin: 0; }

.next-map {
  color: var(--accent-2);
  font-size: 0.72rem;
  font-weight: 650;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  text-decoration: none;
}

.next-map:hover { color: var(--text); }

.next-module .fine { margin-bottom: 0.65rem; }

.next-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.6rem;
}

.next-card {
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 0.25rem;
  min-height: 4.75rem;
  padding: 0.75rem 0.85rem;
  color: var(--text);
  text-decoration: none;
  transition: border-color 180ms var(--ease), transform 180ms var(--ease);
}

.next-card strong {
  font-size: 1.05rem;
  font-weight: 620;
  letter-spacing: -0.02em;
}

.tracks {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.65rem;
}

.track-col { padding: 0.8rem; }

.track-col h2 {
  min-height: 2.2rem;
  color: var(--soft);
}

.node {
  display: block;
  margin: 0 0 0.4rem;
  padding: 0.5rem 0.6rem;
  color: var(--text);
  text-decoration: none;
  background: var(--inset);
  border: 1px solid var(--line);
  transition: border-color 160ms var(--ease);
}

a.node:hover,
a.node:focus-visible { border-color: var(--accent); }

.node.is-soon {
  color: var(--muted);
  background: transparent;
  border-style: dashed;
}

.node small {
  display: block;
  margin-top: 0.12rem;
  color: var(--soft);
  font-size: 0.68rem;
  font-weight: 650;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.ask-row,
.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  align-items: center;
}

label.field {
  display: block;
  margin-bottom: 0.4rem;
  color: var(--muted);
  font-size: 0.68rem;
  font-weight: 650;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

input[type="search"],
input[type="text"],
textarea {
  width: 100%;
  margin: 0;
  padding: 0.65rem 0.7rem;
  color: var(--text);
  background: var(--inset);
  border: 1px solid var(--line);
  border-radius: 0;
  font: inherit;
  line-height: 1.45;
  transition: border-color 160ms var(--ease);
}

textarea { min-height: 7rem; resize: vertical; }

input::placeholder,
textarea::placeholder { color: var(--soft); }

.ask-row input { flex: 1 1 16rem; width: auto; }

button,
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.75rem;
  padding: 0.5rem 0.95rem;
  color: var(--fill-ink);
  background: var(--fill);
  border: 1px solid var(--fill);
  border-radius: 0;
  font: inherit;
  font-size: 0.92rem;
  font-weight: 650;
  letter-spacing: 0.01em;
  text-decoration: none;
  cursor: pointer;
  transition: filter 160ms var(--ease), border-color 160ms var(--ease), background 160ms var(--ease), color 160ms var(--ease);
}

button:hover,
.button:hover { filter: brightness(1.06); }

button:disabled,
button[disabled] {
  color: var(--muted);
  background: transparent;
  border-color: var(--line);
  cursor: not-allowed;
  filter: none;
}

button.ghost {
  color: var(--text);
  background: transparent;
  border-color: var(--line-strong);
  font-weight: 650;
}

button.ghost:disabled,
button.ghost[disabled] {
  color: var(--muted);
  background: transparent;
  border-color: var(--line);
}

button.ghost:hover:not(:disabled) {
  border-color: var(--accent);
  color: var(--text);
  filter: none;
}

button.ghost[aria-pressed="true"] {
  color: var(--fill-ink);
  background: var(--fill);
  border-color: var(--fill);
}

button.tiny {
  padding: 0.35rem 0.7rem;
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

:focus-visible {
  outline: 2px solid #ffe8d8;
  outline-offset: 3px;
}

.panel {
  padding: 1rem;
  background:
    linear-gradient(180deg, rgba(255, 244, 230, 0.03), transparent 30%),
    var(--inset);
  border: 1px solid var(--line);
  box-shadow: inset 0 1px 0 rgba(255, 244, 230, 0.04), 0 18px 36px rgba(0, 0, 0, 0.22);
}

.crumb {
  margin: 0 0 0.7rem;
  color: var(--muted);
  font-size: 0.9rem;
}

.crumb a { color: var(--accent-2); }

.head {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: flex-end;
  gap: 0.75rem 1rem;
}

.head .track {
  margin: 0 0 0.35rem;
  padding: 0.35rem 0.55rem;
  background: var(--raised);
  border: 1px solid var(--line);
}

.tabs {
  display: flex;
  gap: 0;
  margin: 1.15rem 0 0.35rem;
  border-bottom: 1px solid var(--line);
}

.tabs button {
  margin: 0;
  min-height: 2.75rem;
  padding: 0.55rem 0.95rem;
  color: var(--muted);
  background: transparent;
  border: 0;
  border-bottom: 2px solid transparent;
  font-size: 0.72rem;
  font-weight: 650;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  filter: none;
}

.tabs button:hover { color: var(--text); filter: none; }

.tabs button[aria-selected="true"] {
  color: var(--text);
  border-bottom-color: var(--fill);
}

.part { margin: 1.45rem 0 0; }

.part > p { max-width: 40rem; }

.why {
  margin: 0;
  padding: 0;
  list-style: none;
}

.why li {
  display: grid;
  grid-template-columns: 6.5rem 1fr;
  gap: 0.75rem;
  padding: 0.7rem 0;
  border-top: 1px solid var(--line);
}

.why li:last-child { border-bottom: 1px solid var(--line); }

.why strong {
  color: var(--accent);
  font-size: 0.72rem;
  font-weight: 650;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.7rem;
}

.split article { padding: 0.9rem 1rem; }

.split h3 {
  margin: 0 0 0.35rem;
  color: var(--accent);
  font-size: 0.68rem;
  font-weight: 650;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

.split p { margin: 0; }

.related {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin: 0 0 0.85rem;
  padding: 0;
  list-style: none;
}

.related a {
  display: inline-flex;
  align-items: center;
  min-height: 2.75rem;
  padding: 0.35rem 0.7rem;
  color: var(--text);
  text-decoration: none;
  border: 1px solid #8a5334;
  transition: background 160ms var(--ease), border-color 160ms var(--ease);
}

.related a:hover { background: var(--mark); }

.soon-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.soon-list li {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.42rem 0;
  color: var(--muted);
  border-top: 1px solid var(--line);
}

.soon-list li span {
  color: var(--soft);
  font-size: 0.72rem;
  font-weight: 650;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.soon-note {
  padding: 0.9rem 1rem;
  color: var(--muted);
  background: var(--raised);
  border: 1px dashed var(--line-strong);
}

.count {
  margin: 0.75rem 0 0.5rem;
  font-variant-numeric: tabular-nums;
}

.count strong {
  color: var(--accent);
  font-size: 1.4rem;
  font-weight: 620;
}

.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  min-height: 2.4rem;
  margin-top: 0.75rem;
}

.chip {
  padding: 0.18rem 0.42rem;
  color: var(--text);
  background: var(--raised);
  border: 1px solid var(--line);
  font-size: 0.92rem;
  line-height: 1.3;
}

.chip.space {
  color: var(--muted);
  border-style: dashed;
}

.meter {
  display: flex;
  height: 1.7rem;
  overflow: hidden;
  background: #1c1b18;
  border: 1px solid var(--line);
}

.seg {
  height: 100%;
  min-width: 0;
  transition: width 180ms var(--ease);
}

.seg.system { background: var(--fill); }
.seg.history { background: var(--brass); }
.seg.documents { background: var(--olive); }
.seg.answer { background: var(--paper); }

.legend {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem 1rem;
  margin: 0.6rem 0 0;
  padding: 0;
  list-style: none;
  color: var(--muted);
  font-size: 0.85rem;
}

.legend i {
  display: inline-block;
  width: 0.7rem;
  height: 0.7rem;
  margin-right: 0.35rem;
  vertical-align: -0.05rem;
}

.legend .system { background: var(--fill); }
.legend .history { background: var(--brass); }
.legend .documents { background: var(--olive); }
.legend .answer { background: var(--paper); }

.slider-row { margin-top: 0.8rem; }

.slider-label {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  color: var(--muted);
  font-size: 0.92rem;
}

.slider-label b {
  color: var(--text);
  font-weight: 650;
  font-variant-numeric: tabular-nums;
}

input[type="range"] {
  width: 100%;
  margin: 0.35rem 0 0;
  accent-color: var(--fill);
}

.cut {
  margin-top: 0.9rem;
  padding: 0.75rem 0.85rem;
  background: var(--raised);
  border-left: 3px solid var(--fill);
}

.cut p { margin: 0.2rem 0; }

.cut .ok { color: var(--muted); }

.toggle {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin-bottom: 0.75rem;
}

.prompt-block {
  margin: 0;
  padding: 0.9rem 1rem;
  white-space: pre-wrap;
  background: var(--raised);
  border: 1px solid var(--line);
  font: inherit;
  line-height: 1.5;
}

mark {
  color: inherit;
  background: var(--mark);
  padding: 0.05em 0.15em;
}

.missing {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-top: 0.8rem;
  white-space: normal;
}

.missing span {
  padding: 0.15rem 0.4rem;
  color: var(--muted);
  border: 1px dashed var(--accent);
  font-size: 0.8rem;
}

.diff {
  margin: 0.8rem 0 0;
  padding: 0;
  list-style: none;
}

.diff li {
  display: grid;
  grid-template-columns: 8rem 1fr;
  gap: 0.75rem;
  padding: 0.55rem 0;
  border-top: 1px solid var(--line);
}

.diff li:last-child { border-bottom: 1px solid var(--line); }

.diff b {
  color: var(--accent);
  font-size: 0.72rem;
  font-weight: 650;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

[data-state="weak"] .when-strong,
[data-state="strong"] .when-weak { display: none; }

.results { margin-top: 1rem; }

.result {
  display: block;
  margin: 0 0 0.55rem;
  padding: 0.85rem 0.95rem;
  color: var(--text);
  text-decoration: none;
  transition: border-color 160ms var(--ease), transform 160ms var(--ease);
}

.result:hover { border-color: var(--accent); }

.result strong { display: block; font-size: 1.05rem; }

.result em {
  display: block;
  margin-top: 0.15rem;
  color: var(--accent);
  font-style: normal;
  font-size: 0.68rem;
  font-weight: 650;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.pack-list {
  margin: 0 0 1.1rem;
  padding: 0;
  list-style: none;
}

.pack-list li {
  padding: 0.7rem 0;
  border-top: 1px solid var(--line);
}

.pack-list li:last-child { border-bottom: 1px solid var(--line); }

.pack-list strong { display: block; }

.foot {
  margin-top: 2.25rem;
  padding-top: 0.85rem;
  color: var(--muted);
  border-top: 1px solid var(--line);
  font-size: 0.9rem;
}

.foot a { color: var(--accent-2); }

.map-link {
  display: inline-flex;
  align-items: center;
  min-height: 2.75rem;
  margin-top: 0.65rem;
  color: var(--accent-2);
  font-weight: 650;
  letter-spacing: 0.04em;
  text-decoration: none;
}

.map-link:hover { color: var(--text); }

.graph-bay {
  background:
    radial-gradient(440px 220px at 50% 40%, rgba(255, 106, 26, 0.08), transparent 70%),
    var(--bay);
  border: 1px solid var(--line);
  box-shadow: inset 0 1px 0 rgba(255, 244, 230, 0.04), inset 0 0 0 1px rgba(0, 0, 0, 0.35);
}

.graph-toolbar {
  display: grid;
  grid-template-columns: 1fr auto;
  grid-template-areas:
    "track reset"
    "count reset";
  align-items: center;
  gap: 0.1rem 1rem;
  padding: 0.75rem 0.95rem;
  border-bottom: 1px solid var(--line);
}

.graph-track {
  grid-area: track;
  margin: 0;
  color: var(--accent-2);
  font-size: 0.72rem;
  font-weight: 650;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.graph-count {
  grid-area: count;
  margin: 0;
  color: var(--muted);
  font-size: 0.88rem;
  font-variant-numeric: tabular-nums;
}

.graph-toolbar button { grid-area: reset; }

.map-canvas {
  position: relative;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  column-gap: 5rem;
  row-gap: 8rem;
  max-width: 44rem;
  margin: 0 auto;
  padding: 2.6rem 1.5rem 1.5rem;
}

.map-edges {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  overflow: visible;
  pointer-events: none;
  z-index: 0;
}

.map-edges .edge {
  fill: none;
  stroke: var(--brass);
  stroke-width: 1.4;
  stroke-linecap: round;
  transition: stroke 160ms var(--ease), stroke-width 160ms var(--ease);
}

.map-edges .edge.is-hot {
  stroke: var(--accent);
  stroke-width: 2.15;
}

.map-edges .edge.is-draw {
  stroke-dasharray: var(--len);
  stroke-dashoffset: var(--len);
  animation: edge-draw 680ms var(--ease) forwards;
}

.map-edges .edge-label {
  fill: #e6d9c8;
  stroke: #100e0c;
  stroke-width: 5px;
  paint-order: stroke fill;
  font-family: ui-sans-serif, system-ui, sans-serif;
  font-size: 12px;
  font-weight: 650;
  letter-spacing: 0.01em;
}

@keyframes edge-draw {
  to { stroke-dashoffset: 0; }
}

.map-node {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 0.28rem;
  width: min(16rem, 100%);
  min-height: 5.75rem;
  padding: 0.9rem 1rem 0.85rem;
  color: var(--text);
  text-decoration: none;
  background:
    linear-gradient(180deg, rgba(255, 244, 230, 0.05), transparent 46%),
    #1c1916;
  border: 1px solid var(--line-strong);
  border-left: 3px solid #5c5348;
  box-shadow: inset 0 1px 0 rgba(255, 244, 230, 0.06), 0 12px 26px rgba(0, 0, 0, 0.3);
  transition: border-color 180ms var(--ease), transform 180ms var(--ease), box-shadow 180ms var(--ease);
}

.map-node[data-node="tokens"] { justify-self: start; }
.map-node[data-node="context-window"] { justify-self: end; }

.map-node[data-node="prompting"] {
  grid-column: 1 / -1;
  justify-self: center;
}

.map-node strong {
  font-size: 1.2rem;
  font-weight: 620;
  letter-spacing: -0.022em;
}

.map-node-state {
  display: inline-flex;
  align-items: center;
  color: var(--muted);
  font-size: 0.68rem;
  font-weight: 650;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.map-node-state::before {
  content: "";
  width: 0.48rem;
  height: 0.48rem;
  margin-right: 0.45rem;
  border: 1.5px solid currentColor;
}

.map-node.is-opened {
  border-color: #a85c32;
  border-left-color: var(--accent);
  box-shadow: inset 0 1px 0 rgba(255, 244, 230, 0.07), 0 0 0 1px rgba(255, 138, 69, 0.22), 0 14px 28px rgba(0, 0, 0, 0.34);
}

.map-node.is-opened .map-node-state { color: var(--accent-2); }

.map-node.is-opened .map-node-state::before {
  width: 0.55rem;
  height: 0.3rem;
  margin-bottom: 0.18rem;
  border-width: 0 0 1.5px 1.5px;
  transform: rotate(-45deg);
}

.map-node:hover,
.map-node:focus-visible {
  border-color: #c46a32;
}

.rel-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.5rem;
  margin: 0;
  padding: 0 0.95rem 0.95rem;
  list-style: none;
}

.rel-list li {
  margin: 0;
  padding: 0.55rem 0.65rem;
  color: var(--muted);
  background: rgba(0, 0, 0, 0.22);
  border: 1px solid var(--line);
  font-size: 0.84rem;
  line-height: 1.35;
}

.rel-list b {
  display: block;
  margin-bottom: 0.15rem;
  color: var(--text);
  font-size: 0.66rem;
  font-weight: 650;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.placeholder-yard { margin-top: 1.15rem; }

.placeholder-yard > .fine { margin-bottom: 0.65rem; }

.ph-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.6rem;
}

.ph-col h3 {
  margin: 0 0 0.7rem;
  min-height: 0;
  color: var(--soft);
  font-size: 0.74rem;
  font-weight: 650;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.ph-node {
  display: block;
  margin: 0 0 0.4rem;
  padding: 0.48rem 0.55rem;
  color: var(--muted);
  background: transparent;
  border: 1px dashed var(--line-strong);
  font-size: 0.9rem;
}

@media (hover: hover) {
  .feature:hover,
  .next-card:hover,
  .result:hover,
  .map-node:hover {
    transform: translateY(-2px);
  }
}

@media (max-width: 860px) {
  .grid-3,
  .tracks,
  .split,
  .ph-grid { grid-template-columns: 1fr; }

  .why li,
  .diff li { grid-template-columns: 1fr; gap: 0.2rem; }

  .top {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.15rem;
  }

  .track-col h2 { min-height: 0; }

  h1 { max-width: none; }
}

@media (max-width: 720px) {
  .wrap { padding: 0.85rem 0.9rem 2.6rem; }

  .top { flex-direction: column; gap: 0.15rem; }

  .map-canvas {
    grid-template-columns: 1fr;
    row-gap: 3.6rem;
    column-gap: 0;
    max-width: 22rem;
    padding: 1.25rem 0.35rem 1.1rem;
  }

  .map-node,
  .map-node[data-node="tokens"],
  .map-node[data-node="context-window"],
  .map-node[data-node="prompting"] {
    grid-column: auto;
    justify-self: start;
    width: calc(100% - 3.4rem);
  }

  .rel-list,
  .next-list { grid-template-columns: 1fr; }

  .graph-toolbar {
    grid-template-columns: 1fr;
    grid-template-areas:
      "track"
      "count"
      "reset";
  }

  .graph-toolbar button { justify-self: start; }

  .top { flex-direction: column; align-items: flex-start; }
}

@media (max-width: 640px) {
  .ask-row { align-items: stretch; }
  .ask-row input,
  .ask-row button { width: 100%; flex-basis: auto; }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }

  .map-edges .edge.is-draw {
    animation: none;
    stroke-dashoffset: 0;
  }

  .feature:hover,
  .next-card:hover,
  .result:hover,
  .map-node:hover { transform: none; }
}

@media (prefers-contrast: more) {
  :root {
    --line: #6d655c;
    --line-strong: #8d847a;
    --text: #fffaf3;
    --muted: #e6dfd6;
    --soft: #d4cdc3;
  }
}

@media (forced-colors: active) {
  body.concepts::before { background: CanvasText; }

  .feature,
  .next-card,
  .map-node,
  .ph-node,
  .panel,
  .track-col,
  .result,
  .node {
    border: 1px solid CanvasText;
    background: Canvas;
  }

  .map-edges .edge { stroke: CanvasText; }
  .map-node.is-opened { border-color: Highlight; }
}

/* Card template v2 and the curriculum map. */

.wrap.wide { max-width: 78rem; }

.card-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 1rem 1.75rem;
}

.card-top h1 { margin-bottom: 0.35rem; }

.card-meta { text-align: right; }

.card-meta .tabs {
  justify-content: flex-end;
  margin: 0.55rem 0 0.15rem;
  border-bottom: 0;
}

.pill {
  display: inline-block;
  margin: 0 0 0.3rem 0.35rem;
  padding: 0.16rem 0.45rem;
  color: var(--muted);
  background: var(--raised);
  border: 1px solid var(--line);
  font-size: 0.72rem;
  font-weight: 650;
  letter-spacing: 0.04em;
}

.pill.accent {
  color: var(--fill-ink);
  background: var(--fill);
  border-color: var(--fill);
  font-size: 0.78rem;
  padding: 0.28rem 0.55rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.ask-about { margin: 0.45rem 0 0; }

.ask-about a {
  color: var(--accent-2);
  font-size: 0.88rem;
  font-weight: 650;
}

.changed {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  align-items: stretch;
  margin: 1rem 0 0;
  padding: 0.9rem 1rem;
  background: rgba(255, 106, 26, 0.1);
  border: 1px solid rgba(255, 138, 69, 0.55);
  border-left: 4px solid var(--fill);
}

.changed strong {
  flex: 0 0 auto;
  color: var(--accent-2);
  font-size: 0.78rem;
  font-weight: 650;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.changed p { margin: 0; color: var(--text); font-size: 1.02rem; }

.card-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 17.75rem;
  gap: 0.9rem;
  align-items: start;
  margin-top: 0.9rem;
}

.why-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.75rem;
}

.why-grid article {
  padding-top: 0.7rem;
  border-top: 2px solid var(--fill);
}

.why-grid article:nth-child(2) { border-top-color: var(--brass); }
.why-grid article:nth-child(3) { border-top-color: var(--olive); }

.why-grid h3 {
  margin: 0 0 0.35rem;
  font-size: 1rem;
  font-weight: 620;
  letter-spacing: -0.01em;
}

.why-grid p {
  margin: 0;
  color: var(--muted);
  font-size: 0.92rem;
}

.apply-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.7rem;
  margin-top: 1.15rem;
}

.apply-card,
.mistake,
.check {
  padding: 0.95rem 1rem 1rem;
  background:
    linear-gradient(180deg, rgba(255, 244, 230, 0.04), transparent 42%),
    var(--raised);
  border: 1px solid var(--line);
}

.mistake {
  background: #1a120e;
  border-color: #6a3a22;
}

.apply-card h2,
.mistake h2,
.check h2 { margin-bottom: 0.45rem; }

.apply-card p,
.mistake p,
.check > p { margin: 0; }

.check { margin-top: 0.9rem; }

.check-q { margin: 0 0 0.75rem; }

.check-options {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.5rem;
}

button.check-opt {
  width: 100%;
  justify-content: flex-start;
  padding: 0.65rem 0.75rem;
  color: var(--text);
  background: var(--inset);
  border: 1px solid var(--line);
  font-size: 0.92rem;
  font-weight: 560;
  letter-spacing: 0;
  text-align: left;
  text-transform: none;
  filter: none;
}

button.check-opt:hover { filter: none; border-color: var(--accent); }

button.check-opt.is-correct {
  color: var(--fill-ink);
  background: var(--fill);
  border-color: var(--fill);
}

button.check-opt.is-wrong {
  color: var(--text);
  background: transparent;
  border-color: var(--accent);
}

.check .fine { margin: 0.65rem 0 0; }

.side-card {
  margin: 0 0 0.7rem;
  padding: 0.85rem 0.9rem 0.9rem;
  background:
    linear-gradient(180deg, rgba(255, 244, 230, 0.04), transparent 40%),
    var(--raised);
  border: 1px solid var(--line);
}

.side-card h2 { margin-bottom: 0.4rem; }

.side-card p { margin: 0; }

.side-apply { border-color: #6a3a22; }

.side-apply a {
  display: inline-flex;
  align-items: center;
  min-height: 2.25rem;
  margin-top: 0.45rem;
  color: var(--accent-2);
  font-weight: 650;
}

.side-links {
  margin: 0;
  padding: 0;
  list-style: none;
}

.side-links li {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 0.55rem;
  padding: 0.38rem 0;
  border-top: 1px solid var(--line);
}

.side-links a {
  color: var(--text);
  text-decoration: none;
}

.side-links a:hover { color: var(--accent-2); }

.side-tag,
.is-muted {
  color: var(--muted);
}

.side-tag {
  flex: 0 0 auto;
  color: var(--accent);
  font-size: 0.68rem;
  font-weight: 650;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.token-bar {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 0.75rem;
  margin-bottom: 0.65rem;
}

.token-tally {
  margin: 0;
  color: var(--muted);
  font-variant-numeric: tabular-nums;
  font-size: 0.92rem;
}

.token-tally strong {
  color: var(--accent);
  font-size: 1.15rem;
  font-weight: 620;
}

.chip { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; }

.chip.tone-0 { background: rgba(255, 106, 26, 0.22); border-color: rgba(255, 106, 26, 0.5); }
.chip.tone-1 { background: rgba(198, 163, 106, 0.22); border-color: rgba(198, 163, 106, 0.5); }
.chip.tone-2 { background: rgba(154, 170, 134, 0.24); border-color: rgba(154, 170, 134, 0.55); }
.chip.tone-3 { background: rgba(255, 199, 163, 0.14); border-color: rgba(255, 199, 163, 0.45); }

.widget .toggle { margin-top: 0.85rem; }

.map-key {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem 1rem;
  margin: 0;
  padding: 0.55rem 0.95rem 0;
  list-style: none;
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 650;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.map-key .swatch {
  display: inline-block;
  width: 0.7rem;
  height: 0.7rem;
  margin-right: 0.4rem;
  vertical-align: -0.05rem;
  border: 1.5px solid var(--line-strong);
}

.map-key .swatch.visited {
  background: rgba(255, 106, 26, 0.35);
  border-color: var(--accent);
}

.map-key .swatch.next { border-color: var(--accent); border-style: dashed; }

.cmap { position: relative; padding: 0.85rem 0.85rem 1.1rem 1.15rem; }

.cmap-cols {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.85rem 1.15rem;
  align-items: start;
}

.cmap-label { margin: 0 0 0.7rem; color: var(--accent); }

.cnode {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  grid-template-areas:
    "title state"
    "summary summary";
  align-items: start;
  gap: 0.15rem 0.45rem;
  margin: 0 0 0.55rem;
  padding: 0.5rem 0.6rem;
  min-height: 2.55rem;
  color: var(--muted);
  background: #141311;
  border: 1px solid var(--line);
  text-decoration: none;
}

a.cnode { color: var(--text); }

.cnode strong {
  grid-area: title;
  font-size: 0.9rem;
  font-weight: 620;
  letter-spacing: -0.015em;
  line-height: 1.25;
}

.cnode-summary {
  grid-area: summary;
  color: var(--soft);
  font-size: 0.78rem;
  font-weight: 450;
  letter-spacing: 0;
  line-height: 1.35;
  text-transform: none;
}

.cnode-state {
  grid-area: state;
  align-self: start;
  color: var(--soft);
  font-size: 0.62rem;
  font-weight: 650;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  white-space: nowrap;
}

a.cnode.is-live {
  color: var(--text);
  background: rgba(255, 106, 26, 0.1);
  border-color: rgba(255, 138, 69, 0.72);
  opacity: 1;
}

.cnode.is-opened {
  color: var(--text);
  background: rgba(255, 106, 26, 0.14);
  border-color: var(--accent);
}

.cnode.is-opened .cnode-state { color: var(--accent-2); }

.cnode.is-opened .cnode-state::before {
  content: "";
  display: inline-block;
  width: 0.42rem;
  height: 0.24rem;
  margin: 0 0.3rem 0.12rem 0;
  border: solid currentColor;
  border-width: 0 0 1.5px 1.5px;
  transform: rotate(-45deg);
  vertical-align: middle;
}

.cnode.is-next {
  color: var(--text);
  border-color: var(--accent);
  border-style: dashed;
}

.cnode.is-next .cnode-state { color: var(--accent); }

.cnode.is-next .cnode-state::before {
  content: "";
  display: inline-block;
  width: 0.38rem;
  height: 0.38rem;
  margin-right: 0.32rem;
  border: 1.5px solid currentColor;
  border-radius: 50%;
  vertical-align: -0.05rem;
}

.cnode.is-soon { cursor: default; opacity: 0.58; }

.cnode.is-tried { box-shadow: inset 3px 0 0 var(--olive); }

.cnode.is-tried .cnode-state { color: var(--olive); }

a.cnode:hover,
a.cnode:focus-visible { border-color: var(--accent); }

.cmap-edges {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  overflow: visible;
  pointer-events: none;
  z-index: 0;
}

.cmap-edges .cedge-halo {
  fill: none;
  stroke: #0c0b0a;
  stroke-width: 5.5;
  stroke-linecap: round;
  opacity: 0.95;
}

.cmap-edges .cedge {
  fill: none;
  stroke: #d7b07a;
  stroke-width: 1.85;
  stroke-linecap: round;
  opacity: 0.95;
}

.cmap-edges .cedge.is-lit { stroke: var(--accent); opacity: 0.95; }
.cmap-edges .cedge.is-hot { stroke: var(--accent-2); stroke-width: 2.1; opacity: 1; }

.rel-details { padding: 0.15rem 0.95rem 0.95rem; }

.rel-details summary {
  color: var(--accent-2);
  font-size: 0.85rem;
  font-weight: 650;
  cursor: pointer;
}

.rel-details ul {
  margin: 0.55rem 0 0;
  padding: 0;
  list-style: none;
  columns: 2;
}

.rel-details li {
  break-inside: avoid;
  padding: 0.18rem 0;
  color: var(--muted);
  font-size: 0.86rem;
}

.next-card.is-static { cursor: default; }

.next-card em {
  color: var(--soft);
  font-style: normal;
  font-size: 0.68rem;
  font-weight: 650;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

[data-panel="practice"],
[data-panel="deep"] { margin-top: 1rem; }

@media (max-width: 980px) {
  .card-grid,
  .apply-grid,
  .cmap-cols { grid-template-columns: 1fr 1fr; }

  .why-grid,
  .check-options { grid-template-columns: 1fr; }

  .card-top { flex-direction: column; align-items: flex-start; }
  .card-meta { text-align: left; }
  .card-meta .tabs { justify-content: flex-start; }
  .pill { margin-left: 0; margin-right: 0.35rem; }
  .check-options { grid-template-columns: 1fr; }
}

@media (max-width: 640px) {
  .card-grid,
  .cmap-cols,
  .rel-details ul,
  .apply-grid { grid-template-columns: 1fr; }

  .changed { flex-direction: column; gap: 0.25rem; }
  .token-bar { flex-direction: column; align-items: flex-start; }
}

@media (forced-colors: active) {
  .cnode,
  .side-card,
  .apply-card,
  .mistake,
  .check,
  .changed {
    border: 1px solid CanvasText;
    background: Canvas;
  }

  .cnode.is-opened,
  .cnode.is-next { border-color: Highlight; }
  .cmap-edges .cedge { stroke: CanvasText; }
}

.definition {
  margin: 0.15rem 0 0.85rem;
  max-width: 40rem;
  padding: 0.1rem 0 0.1rem 0.85rem;
  border-left: 3px solid var(--fill);
  color: var(--text);
  font-size: 1.12rem;
  line-height: 1.45;
}

.faq { margin-top: 2rem; }

.faq dl { margin: 0; }

.faq dt {
  margin-top: 0.95rem;
  font-weight: 650;
}

.faq dd {
  margin: 0.2rem 0 0;
  color: var(--muted);
}

.track-hub {
  display: inline-block;
  margin: -0.4rem 0 0.7rem;
  color: var(--accent-2);
  font-size: 0.72rem;
  font-weight: 650;
  letter-spacing: 0.08em;
  text-decoration: none;
  text-transform: uppercase;
}

.track-hub:hover { color: var(--text); }

.tier-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(15.5rem, 1fr));
  gap: 0.75rem;
  margin-top: 1.25rem;
}

.tier {
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
  padding: 1rem 1rem 1.1rem;
  background:
    linear-gradient(180deg, rgba(255, 244, 230, 0.045), transparent 38%),
    var(--raised);
  border: 1px solid var(--line);
  box-shadow: inset 0 1px 0 rgba(255, 244, 230, 0.05), var(--shadow);
}

.tier .kicker { margin-bottom: 0; }

.tier-price {
  margin: 0;
  font-size: 1.85rem;
  font-weight: 620;
  letter-spacing: -0.03em;
  line-height: 1.05;
}

.tier-price span {
  display: block;
  margin-top: 0.2rem;
  color: var(--muted);
  font-size: 0.95rem;
  font-weight: 560;
  letter-spacing: 0;
}

.tier ul {
  margin: 0;
  padding-left: 1.1rem;
  color: var(--muted);
}

.tier .cta-row { margin-top: auto; }

a.button.ghost {
  color: var(--text);
  background: transparent;
  border-color: var(--line-strong);
}

a.button.ghost:hover {
  border-color: var(--accent);
  filter: none;
}

.concept-index {
  margin: 0.4rem 0 0;
  padding: 0;
  list-style: none;
}

.concept-index li {
  padding: 0.75rem 0;
  border-top: 1px solid var(--line);
}

.concept-index li:last-child { border-bottom: 1px solid var(--line); }

.concept-index a,
.concept-index .name {
  color: var(--text);
  font-weight: 650;
  text-decoration: none;
}

.concept-index a:hover { color: var(--accent-2); }

.concept-index .pill {
  margin: 0 0 0 0.4rem;
  vertical-align: middle;
}

.concept-index p {
  margin: 0.3rem 0 0;
  color: var(--muted);
}

.prose-links a:not(.button) { color: var(--accent-2); }

.prose-links a:not(.button):hover { color: var(--text); }

.start-row { margin-top: 1.15rem; }

.start-reason { margin: 0.55rem 0 0; max-width: 38rem; }

.intent-picks {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(11.5rem, 1fr));
  gap: 0.55rem;
}

.intent {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  min-height: 5.5rem;
  padding: 0.75rem 0.7rem;
  color: var(--text);
  background:
    linear-gradient(180deg, rgba(255, 244, 230, 0.045), transparent 42%),
    var(--raised);
  border: 1px solid var(--line);
  text-decoration: none;
}

.intent:hover,
.intent:focus-visible { border-color: var(--accent); }

.intent strong {
  font-size: 0.95rem;
  font-weight: 620;
  letter-spacing: -0.015em;
  line-height: 1.25;
}

.intent span {
  margin-top: auto;
  color: var(--accent-2);
  font-size: 0.75rem;
  font-weight: 650;
  letter-spacing: 0.03em;
}

.update-strip {
  margin: 0;
  padding: 0;
  list-style: none;
}

.update-strip li {
  display: grid;
  grid-template-columns: 6.6rem minmax(0, 1fr);
  gap: 0.15rem 0.85rem;
  padding: 0.7rem 0;
  border-top: 1px solid var(--line);
}

.update-strip li:last-child { border-bottom: 1px solid var(--line); }

.update-strip time {
  color: var(--accent);
  font-size: 0.75rem;
  font-weight: 650;
  letter-spacing: 0.04em;
}

.update-strip strong { display: block; font-weight: 650; }

.update-strip .fine { margin: 0.2rem 0 0; }

.update-strip a { color: var(--accent-2); text-decoration: none; }

.update-strip a:hover { color: var(--text); }

.map-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  padding: 0.7rem 0.95rem 0.15rem;
}

.map-filters button.tiny { min-height: 2.2rem; }

.map-key .swatch.live {
  background: rgba(255, 106, 26, 0.14);
  border-color: rgba(255, 138, 69, 0.75);
}

.map-key .swatch.tried {
  background: rgba(154, 170, 134, 0.4);
  border-color: var(--olive);
}

.cmap-progress {
  margin: -0.25rem 0 0.65rem;
  color: var(--muted);
  font-size: 0.75rem;
  font-variant-numeric: tabular-nums;
  line-height: 1.35;
}

.cmap-group {
  margin: 0.2rem 0 0.4rem;
  color: var(--soft);
  font-size: 0.62rem;
  font-weight: 650;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.cmap.is-one-track .cmap-cols { grid-template-columns: minmax(0, 32rem); }

.edge-readout {
  margin: 0;
  padding: 0.35rem 0.95rem 0.75rem;
  color: var(--muted);
  font-size: 0.9rem;
}

.rel-details li strong { color: var(--text); font-weight: 650; }

.rel-details .rel-pre { color: var(--accent-2); }

.rel-details .rel-status {
  display: inline-block;
  margin-left: 0.45rem;
  color: var(--soft);
  font-size: 0.68rem;
  font-weight: 650;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.result.is-soon { cursor: default; }

.result.is-soon em { color: var(--soft); }

.try-toggle { margin-top: 0.85rem; }

.changelog {
  margin: 1.25rem 0 0;
  padding: 0;
  list-style: none;
}

.changelog li {
  padding: 1rem 0;
  border-top: 1px solid var(--line);
}

.changelog li:last-child { border-bottom: 1px solid var(--line); }

.changelog .log-title {
  margin: 0.25rem 0 0.4rem;
  font-size: 1.25rem;
  font-weight: 620;
  letter-spacing: -0.02em;
  line-height: 1.2;
  text-transform: none;
}

.cache-stack,
.claim-list { display: flex; flex-direction: column; gap: 0.45rem; }

.cache-row {
  display: grid;
  grid-template-columns: 5.5rem minmax(0, 1fr) auto;
  gap: 0.55rem;
  align-items: center;
}

.cache-label,
.route-kicker {
  color: var(--muted);
  font-size: 0.72rem;
  font-weight: 650;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.cache-block,
.route-box,
.schema-card,
.source-quote {
  padding: 0.7rem 0.8rem;
  background: var(--raised);
  border: 1px solid var(--line);
}

.cache-block.prefix { border-left: 3px solid var(--fill); }
.cache-block.turn { border-left: 3px solid var(--brass); }

[data-widget="cache"][data-state="changed"] .cache-block.prefix { border-left-color: var(--accent); }

.cache-tag {
  color: var(--accent-2);
  font-size: 0.72rem;
  font-weight: 650;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

[data-widget="cache"][data-state="changed"] .cache-tag.prefix-tag { color: var(--accent); }

.route-board {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
  gap: 0.6rem;
  align-items: center;
}

.route-box strong { display: block; margin: 0.2rem 0 0; font-weight: 620; }

.route-arrow {
  color: var(--accent);
  font-size: 1.25rem;
  line-height: 1;
  text-align: center;
}

.schema-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 0.7rem;
}

.schema-card {
  margin: 0;
  white-space: pre-wrap;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.88rem;
  line-height: 1.45;
}

.schema-card.is-bad { border-color: var(--accent); }

.source-quote { margin: 0 0 0.75rem; border-left: 3px solid var(--brass); }

button.claim {
  width: 100%;
  justify-content: flex-start;
  padding: 0.7rem 0.8rem;
  color: var(--text);
  background: var(--raised);
  border: 1px solid var(--line);
  font-weight: 560;
  letter-spacing: 0;
  text-align: left;
  text-transform: none;
  filter: none;
}

button.claim:hover { filter: none; border-color: var(--accent); }

button.claim.is-supported { border-color: var(--olive); }

button.claim.is-unsupported { border-color: var(--accent); }

.side-links.sources li { display: block; }

.side-links.sources a {
  color: var(--accent-2);
  text-decoration: underline;
  text-underline-offset: 0.15em;
}

@media (max-width: 980px) {
  .intent-picks { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 640px) {
  .intent-picks,
  .update-strip li,
  .cache-row,
  .route-board,
  .schema-grid { grid-template-columns: 1fr; }

  .route-arrow { transform: rotate(90deg); }
}

.prose-links h3 {
  margin: 1.15rem 0 0.4rem;
  font-size: 1.05rem;
  font-weight: 620;
  letter-spacing: -0.02em;
}

.math-lines {
  margin: 0.7rem 0 1rem;
  padding: 0.35rem 0.85rem;
  list-style: none;
  background: var(--inset);
  border: 1px solid var(--line);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.92rem;
  line-height: 1.45;
}

.math-lines li {
  padding: 0.55rem 0;
  border-bottom: 1px solid var(--line);
  overflow-wrap: anywhere;
}

.math-lines li:last-child { border-bottom: 0; }

.math-lines span {
  display: block;
  margin-bottom: 0.15rem;
  color: var(--muted);
  font-family: ui-sans-serif, system-ui, sans-serif;
  font-size: 0.68rem;
  font-weight: 650;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.check-list {
  margin: 0 0 1.2rem;
  padding-left: 1.25rem;
}

.check-list li {
  margin: 0.15rem 0;
  padding: 0.45rem 0;
  border-bottom: 1px solid var(--line);
}

.temp-rows {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin-top: 0.85rem;
}

.temp-row {
  display: grid;
  grid-template-columns: 4.2rem minmax(0, 1fr) 3rem;
  gap: 0.55rem;
  align-items: center;
}

.temp-name {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.88rem;
}

.temp-track {
  height: 0.85rem;
  background: #1c1b18;
  border: 1px solid var(--line);
}

.temp-fill {
  height: 100%;
  background: var(--fill);
}

.temp-row:nth-child(2) .temp-fill { background: var(--brass); }
.temp-row:nth-child(3) .temp-fill { background: var(--olive); }

.temp-pct {
  color: var(--muted);
  font-size: 0.85rem;
  font-variant-numeric: tabular-nums;
  text-align: right;
}

.part a,
.faq a,
.side-card .fine a {
  color: var(--accent-2);
}

.chunk-stack,
.embed-rows {
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
}

.chunk-piece {
  margin: 0;
  padding: 0.7rem 0.8rem;
  background: var(--raised);
  border: 1px solid var(--line);
  border-left: 3px solid var(--olive);
}

.chunk-piece.is-split { border-left-color: var(--accent); }

.chunk-kicker {
  display: block;
  margin-bottom: 0.2rem;
  color: var(--muted);
  font-size: 0.72rem;
  font-weight: 650;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.embed-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 2.5rem;
  gap: 0.3rem 0.55rem;
  align-items: center;
}

.embed-label {
  grid-column: 1 / -1;
  margin: 0;
}

.embed-row.is-near .embed-label { color: var(--text); }

.embed-row.is-near .temp-fill { background: var(--olive); }

.loop-stack {
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
  margin-top: 0.85rem;
}

.loop-step {
  margin: 0;
  padding: 0.7rem 0.8rem;
  background: var(--raised);
  border: 1px solid var(--line);
  border-left: 3px solid var(--line);
}

.loop-step.is-on { border-left-color: var(--accent); }
.loop-step.is-out { opacity: 0.45; }

.inject-mark {
  margin: 0.75rem 0 0;
  padding: 0.7rem 0.8rem;
  background: var(--raised);
  border: 1px solid var(--line);
  border-left: 3px solid var(--olive);
}

.inject-mark.is-override { border-left-color: var(--accent); }

/* Home. Scoped so card pages keep their own type and panels. */
.home .wrap { max-width: 76rem; }

.home .top {
  position: sticky;
  top: 0;
  z-index: 20;
  margin: 0 -1.2rem;
  padding: 0.55rem 1.2rem 0.35rem;
  background: rgba(12, 11, 10, 0.9);
  backdrop-filter: blur(10px);
}

.home h1 {
  max-width: 13em;
  font-weight: 720;
}

.home h1 em {
  font-style: normal;
  color: var(--fill);
}

.home .kicker {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
}

.home .hspark {
  display: block;
  width: 0.85rem;
  height: auto;
}

.home .vh {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
}

.home .hhero {
  position: relative;
  overflow: hidden;
  margin: 0 -1.2rem 0;
  padding: 0.35rem 1.2rem 1.35rem;
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(900px 480px at 78% 8%, rgba(255, 106, 26, 0.1), transparent 60%),
    radial-gradient(640px 360px at 0% 0%, rgba(198, 163, 106, 0.05), transparent 60%);
}

.home .hgraph {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

.home .hhero-grid {
  position: relative;
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: 2.4rem;
  align-items: start;
}

.home .hsub {
  max-width: 36rem;
  margin: 0 0 1.15rem;
  font-size: 1.12rem;
}

.home .hsub strong { color: var(--text); }

.home .hreason { margin-top: 0.35rem; }

.home .hlab {
  min-height: 36rem;
  padding: 0.95rem 1rem 1.05rem;
  background:
    linear-gradient(180deg, rgba(27, 25, 22, 0.96), rgba(12, 11, 10, 0.96));
  border: 1px solid var(--line-strong);
  box-shadow: var(--shadow), inset 0 0 0 1px rgba(255, 106, 26, 0.06);
}

.home .hlab-head {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  margin-bottom: 0.55rem;
  color: var(--soft);
  font-size: 0.78rem;
}

.home .hlab-title { color: var(--text); font-weight: 650; }

.home .hlab-note { margin-left: auto; }

.home .hdot {
  width: 0.5rem;
  height: 0.5rem;
  border-radius: 50%;
  background: var(--fill);
  box-shadow: 0 0 0 0 rgba(255, 106, 26, 0.55);
}

.js .home .hdot { animation: home-pulse 2s infinite; }

@keyframes home-pulse {
  70% { box-shadow: 0 0 0 8px rgba(255, 106, 26, 0); }
  100% { box-shadow: 0 0 0 0 rgba(255, 106, 26, 0); }
}

.home .htabs { display: none; }

.js .home .htabs {
  display: flex;
  gap: 0;
  margin: 0;
  padding: 0;
  background: var(--inset);
  border: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.home .htabs button {
  flex: 1;
  min-height: 2.4rem;
  padding: 0.4rem 0.35rem;
  color: var(--muted);
  background: transparent;
  border: 0;
  border-bottom: 2px solid transparent;
  border-radius: 0;
  font-size: 0.82rem;
  font-weight: 650;
  letter-spacing: 0;
  text-transform: none;
  filter: none;
}

.home .htabs button:hover { color: var(--text); filter: none; }

.home .htabs button[aria-selected="true"] {
  color: var(--fill-ink);
  background: var(--fill);
  border-bottom-color: var(--fill);
}

.home .hprog {
  display: none;
  height: 2px;
  margin: 0.45rem 0 0.65rem;
  overflow: hidden;
  background: var(--line);
}

.js .home .hprog { display: block; }

.home .hprog i {
  display: block;
  width: 0;
  height: 100%;
  background: var(--fill);
}

.home .hpanel { padding-top: 0.85rem; }

.js .home .hpanel:not(.is-on) { display: none; }

.home .hkicker {
  margin: 0 0 0.35rem;
  color: var(--accent);
  font-size: 0.68rem;
  font-weight: 650;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.js .home .hkicker,
.js .home .hstatic { display: none; }

.home .hlead { margin: 0 0 0.7rem; color: var(--muted); }

.home .hlead strong { color: var(--text); }

.home .hlab textarea {
  min-height: 0;
  resize: vertical;
}

.home .hchips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem;
  align-content: flex-start;
  min-height: 3.6rem;
  margin: 0.7rem 0;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.86rem;
  line-height: 1;
}

.home .hchips span {
  padding: 0.35rem 0.3rem;
  white-space: pre;
  background: rgba(255, 106, 26, 0.16);
  border: 1px solid rgba(255, 138, 69, 0.32);
  animation: home-pop 0.35s var(--ease) backwards;
}

.home .hchips span:nth-child(3n + 2) {
  background: rgba(198, 163, 106, 0.16);
  border-color: rgba(198, 163, 106, 0.35);
}

.home .hchips span:nth-child(3n) {
  background: rgba(154, 170, 134, 0.16);
  border-color: rgba(154, 170, 134, 0.35);
}

.home .hchips .sp { color: var(--soft); font-style: normal; }

@keyframes home-pop {
  from { opacity: 0; transform: translateY(5px) scale(0.92); }
}

.home .hmeters {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.45rem;
}

.home .hmeters div {
  padding: 0.55rem 0.65rem;
  background: var(--inset);
  border: 1px solid var(--line);
}

.home .m-num {
  display: block;
  color: var(--text);
  font-size: 1.15rem;
  font-weight: 720;
  font-variant-numeric: tabular-nums;
}

.home .m-lab { color: var(--soft); font-size: 0.74rem; }

.home .hcard-link {
  display: inline-block;
  margin-top: 0.75rem;
  color: var(--accent-2);
  font-weight: 650;
  text-decoration: none;
}

.home .hcard-link:hover { color: var(--text); }

.home .hlab .fine { margin: 0.55rem 0 0; color: var(--soft); font-size: 0.8rem; }

.home .hlab .fine a,
.home .hsec .fine a,
.home .hsec-head a,
.home .htrack p a {
  color: var(--accent-2);
}

.home .fine strong { color: var(--accent-2); }

.home .hprompt {
  margin: 0 0 0.7rem;
  padding: 0.55rem 0.7rem;
  background: var(--inset);
  border: 1px solid var(--line);
}

.home .hprompt span {
  margin-right: 0.45rem;
  color: var(--accent-2);
  font-size: 0.68rem;
  font-weight: 650;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.home .hslider {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 0.55rem;
  color: var(--muted);
  font-size: 0.9rem;
}

.home .hslider input { flex: 1; accent-color: var(--fill); }

.home .hslider output {
  min-width: 3ch;
  color: var(--fill);
  font-weight: 720;
  font-variant-numeric: tabular-nums;
}

.home .hbars { display: grid; gap: 0.3rem; margin-bottom: 0.7rem; }

.home .hbar {
  display: grid;
  grid-template-columns: 6.2rem minmax(0, 1fr) 2.6rem;
  gap: 0.5rem;
  align-items: center;
  font-size: 0.85rem;
}

.home .hbar .w {
  color: var(--muted);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

.home .hbar .t {
  height: 0.85rem;
  overflow: hidden;
  background: var(--inset);
}

.home .hbar .t i {
  display: block;
  width: 0;
  height: 100%;
  background: linear-gradient(90deg, #b5560f, var(--fill));
  transition: width 0.35s var(--ease);
}

.home .hbar .p {
  color: var(--soft);
  text-align: right;
  font-variant-numeric: tabular-nums;
}

.home .hbar.is-pick .w { color: var(--fill); font-weight: 700; }

.home .hsample {
  display: flex;
  gap: 0.7rem;
  align-items: flex-start;
}

.home .hout {
  flex: 1;
  margin: 0 0 0.7rem;
  padding: 0.55rem 0.7rem;
  background: rgba(255, 106, 26, 0.07);
  border-left: 3px solid var(--fill);
}

.home .hsample .hout { margin: 0; }

.home .hflow {
  display: flex;
  gap: 0.25rem;
  margin: 0 0 0.7rem;
  padding: 0;
  list-style: none;
}

.home .hflow li {
  flex: 1;
  padding: 0.35rem 0.15rem;
  color: var(--soft);
  font-size: 0.74rem;
  font-weight: 650;
  text-align: center;
  background: var(--inset);
  border: 1px solid var(--line);
}

.home .hflow li.is-on {
  color: var(--fill-ink);
  background: var(--fill);
  border-color: var(--fill);
}

.home .hflow li.is-done {
  color: var(--accent-2);
  border-color: rgba(255, 138, 69, 0.45);
}

.home .hchunks {
  display: grid;
  gap: 0.35rem;
  margin: 0 0 0.7rem;
  padding: 0;
  list-style: none;
}

.home .hchunks li {
  display: grid;
  grid-template-columns: 1.6rem minmax(0, 1fr) 4rem 2.2rem;
  gap: 0.45rem;
  align-items: center;
  padding: 0.4rem 0.55rem;
  font-size: 0.84rem;
  background: var(--inset);
  border: 1px solid var(--line);
  transition: opacity 0.4s var(--ease), border-color 0.4s var(--ease), background 0.4s var(--ease);
}

.home .hchunks b { color: var(--soft); font-weight: 650; }

.home .vec { display: flex; gap: 2px; height: 0.85rem; }

.home .vec s {
  flex: 1;
  background: var(--line-strong);
  text-decoration: none;
}

.home .score {
  color: var(--soft);
  font-style: normal;
  text-align: right;
  font-variant-numeric: tabular-nums;
}

.home .hchunks li.is-hit {
  background: rgba(255, 106, 26, 0.09);
  border-color: var(--fill);
}

.home .hchunks li.is-miss { opacity: 0.45; }

.js .home .hchunks li { opacity: 0.25; }

.js .home .hchunks.is-shown li { opacity: 1; }

.js .home .hchunks.is-shown li.is-miss { opacity: 0.4; }

.home .hagent {
  display: grid;
  grid-template-columns: 10.5rem minmax(0, 1fr);
  gap: 0.75rem;
  align-items: start;
}

.home .hring { width: 10.5rem; height: 10.5rem; }

.home .hring-track {
  fill: none;
  stroke: var(--line-strong);
  stroke-width: 2;
  stroke-dasharray: 4 6;
}

.home .hring-run {
  fill: none;
  stroke: var(--fill);
  stroke-width: 2.5;
  stroke-dasharray: 440;
  stroke-dashoffset: 440;
  transform: rotate(-90deg);
  transform-origin: center;
  transition: stroke-dashoffset 0.6s var(--ease);
}

.home .hrn circle {
  fill: var(--inset);
  stroke: var(--line-strong);
  stroke-width: 1.5;
}

.home .hrn text {
  fill: var(--muted);
  font-size: 10.5px;
  font-weight: 700;
  text-anchor: middle;
}

.home .hrn.is-on circle { fill: var(--fill); stroke: var(--fill); }

.home .hrn.is-on text { fill: var(--fill-ink); }

.home .hring-label {
  fill: var(--soft);
  font-size: 11px;
  text-anchor: middle;
}

.home .hlog {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  height: auto;
  max-height: none;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: 0.84rem;
}

.js .home .hlog {
  height: 18.5rem;
  overflow-y: auto;
  scroll-behavior: smooth;
  scrollbar-width: none;
}

.js .home .hlog::-webkit-scrollbar { display: none; }

.home .hlog li {
  padding: 0.35rem 0.55rem;
  background: var(--inset);
  border: 1px solid var(--line);
}

.home .hlog li span {
  display: inline-block;
  min-width: 4.2rem;
  margin-right: 0.35rem;
  color: var(--soft);
  font-size: 0.66rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.home .hlog code {
  color: var(--accent-2);
  font-size: 0.78rem;
  word-break: break-word;
}

.home .hlog .is-act span { color: var(--fill); }

.home .hlog .is-obs span { color: var(--olive); }

.home .hlog .is-ans {
  background: rgba(255, 106, 26, 0.08);
  border-color: var(--fill);
}

.home .hlog .is-ans span { color: var(--fill); }

.home .hlog .is-warn { border-color: rgba(255, 143, 130, 0.7); }

.home .hlog .is-warn code { color: #ffb0a6; }

.js .home .hlog li { display: none; }

.js .home .hlog li.is-in {
  display: block;
  animation: home-pop 0.35s var(--ease);
}

.home .hproof {
  position: relative;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.75rem;
  margin: 1.15rem 0 0;
  padding: 0;
  list-style: none;
}

.home .hproof a {
  display: grid;
  gap: 0.2rem;
  height: 100%;
  padding: 0.75rem 0.95rem;
  color: var(--text);
  text-decoration: none;
  background: rgba(27, 25, 22, 0.9);
  border: 1px solid var(--line-strong);
  transition: border-color 0.2s var(--ease), transform 0.2s var(--ease);
}

.home .hproof a:hover {
  border-color: var(--fill);
  transform: translateY(-2px);
}

.home .t-name { font-size: 1.05rem; font-weight: 720; }

.home .t-count { color: var(--soft); font-size: 0.8rem; }

.home .t-count b { color: var(--fill); font-size: 1rem; }

.home .t-out { color: var(--muted); font-size: 0.92rem; }

.home .t-meter {
  height: 4px;
  margin-top: 0.35rem;
  overflow: hidden;
  background: var(--line);
}

.home .t-meter i {
  display: block;
  height: 100%;
  background: var(--fill);
}

.home .hsec {
  padding: 3rem 0;
  border-bottom: 1px solid var(--line);
}

.home .hsec h2,
.home .next-head h2 {
  margin: 0 0 0.9rem;
  font-size: clamp(1.35rem, 2vw, 1.7rem);
  font-weight: 650;
  letter-spacing: -0.02em;
  line-height: 1.2;
  text-transform: none;
}

.home .hsec-head {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: baseline;
  gap: 0.35rem 1rem;
}

.home .hsec-head h2 { margin: 0; }

.home .hsec-head a {
  font-weight: 650;
  text-decoration: none;
}

.home .update-strip {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.75rem;
  margin-top: 1rem;
}

.home .update-strip li {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  padding: 0.9rem 1rem;
  background: var(--raised);
  border: 1px solid var(--line);
}

.home .update-strip li:last-child { border-bottom: 1px solid var(--line); }

.home .hhow {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.75rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.home .hhow li {
  position: relative;
  padding: 1.05rem;
  background: var(--raised);
  border: 1px solid var(--line);
}

.home .hhow li:not(:last-child)::after {
  content: "→";
  position: absolute;
  top: 1.35rem;
  right: -0.7rem;
  z-index: 1;
  color: var(--fill);
  font-weight: 800;
}

.home .hn {
  display: inline-grid;
  place-items: center;
  width: 1.7rem;
  height: 1.7rem;
  color: var(--fill-ink);
  font-weight: 800;
  background: var(--fill);
  border-radius: 50%;
}

.home .hhow h3,
.home .htrack h3 {
  margin: 0.7rem 0 0.35rem;
  font-size: 1.05rem;
  font-weight: 650;
  letter-spacing: -0.02em;
}

.home .hhow p,
.home .htrack p { margin: 0; color: var(--muted); }

.home .htracks {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.75rem;
  margin-top: 1rem;
}

.home .htrack {
  display: flex;
  flex-direction: column;
  padding: 1rem;
  background: var(--raised);
  border: 1px solid var(--line);
}

.home .htrack header { display: flex; flex-direction: column; gap: 0.35rem; }

.home .htrack h3 { margin: 0; }

.home .htrack .hcard-link { margin-top: auto; padding-top: 0.65rem; }

.home .hpill {
  align-self: flex-start;
  padding: 0.15rem 0.5rem;
  color: var(--accent-2);
  font-size: 0.74rem;
  font-weight: 650;
  background: rgba(255, 106, 26, 0.14);
}

.home .htags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  margin: 0.7rem 0 0;
}

.home .htags a {
  padding: 0.2rem 0.45rem;
  color: var(--text);
  font-size: 0.78rem;
  text-decoration: none;
  border: 1px solid var(--line-strong);
}

.home .htags a:hover { border-color: var(--fill); }

.home .htrack.is-soon {
  background: transparent;
  border-style: dashed;
}

.home .htrack.is-soon .hpill {
  color: var(--soft);
  background: var(--line);
}

.home .tier.is-featured {
  border-color: var(--fill);
  box-shadow: inset 0 0 0 1px rgba(255, 106, 26, 0.28), var(--shadow);
}

.home #tracks,
.home #pricing { scroll-margin-top: 4.5rem; }

@media (max-width: 1100px) {
  .home .hhero-grid { grid-template-columns: 1fr; }
  .home .htracks { grid-template-columns: 1fr 1fr; }
  .home .hlab { min-height: 0; }
  .home .update-strip,
  .home .hhow,
  .home .hproof { grid-template-columns: 1fr; }

  .home .hhow li:not(:last-child)::after {
    content: "↓";
    top: auto;
    right: auto;
    bottom: -0.85rem;
    left: 50%;
  }
}

@media (max-width: 760px) {
  .home .top {
    position: static;
    margin: 0 -0.9rem;
    padding: 0.2rem 0.9rem 0.35rem;
    background: transparent;
    backdrop-filter: none;
  }

  .home .hhero { margin: 0 -0.9rem; padding: 0.2rem 0.9rem 1.1rem; }

  .home .hgraph {
    opacity: 0.55;
    mask-image: linear-gradient(90deg, #000 0%, #000 16%, transparent 34%, transparent 66%, #000 84%, #000 100%);
  }

  .home h1 { font-size: 2rem; }

  .home .hsub { font-size: 1.02rem; }

  .home .hlab-note { display: none; }

  .home .htabs button { font-size: 0.74rem; padding: 0.4rem 0.15rem; }

  .home .hmeters { grid-template-columns: 1fr 1fr; }

  .home .hagent { grid-template-columns: 1fr; }

  .home .hring { width: 8.5rem; height: 8.5rem; margin: 0 auto; }

  .home .hchunks li { grid-template-columns: 1.5rem minmax(0, 1fr) 2.2rem; }

  .home .hchunks .vec { display: none; }

  .home .hsample { flex-direction: column; }

  .home .hproof,
  .home .update-strip,
  .home .hhow,
  .home .htracks { grid-template-columns: 1fr; }

  .home .hsec { padding: 2.3rem 0; }

  .home .hbar { grid-template-columns: 5.6rem minmax(0, 1fr) 2.2rem; }
}

@media (prefers-reduced-motion: reduce) {
  .home .hproof a:hover { transform: none; }
}