/* Toni Hale portfolio. IBM Plex is used under the SIL Open Font License (see /fonts/OFL.txt). */

@font-face {
  font-family: "IBM Plex Sans";
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url("/fonts/ibm-plex-sans-400.woff2") format("woff2");
}

@font-face {
  font-family: "IBM Plex Sans";
  font-style: normal;
  font-weight: 500;
  font-display: swap;
  src: url("/fonts/ibm-plex-sans-500.woff2") format("woff2");
}

@font-face {
  font-family: "IBM Plex Sans";
  font-style: normal;
  font-weight: 600;
  font-display: swap;
  src: url("/fonts/ibm-plex-sans-600.woff2") format("woff2");
}

@font-face {
  font-family: "IBM Plex Mono";
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url("/fonts/ibm-plex-mono-400.woff2") format("woff2");
}

@font-face {
  font-family: "IBM Plex Mono";
  font-style: normal;
  font-weight: 500;
  font-display: swap;
  src: url("/fonts/ibm-plex-mono-500.woff2") format("woff2");
}

:root {
  --ink: #12263f;
  --navy: #1a365d;
  --navy-mid: #245082;
  --accent: #0f4c66;
  --accent-bright: #1f6b8a;
  --paper: #f3f5f4;
  --surface: #fbfcfc;
  --mist: #e7eef2;
  --line: #d3dee6;
  --muted: #3d5166;
  --text: #1b2a38;
  --ingest: #1f6b8a;
  --ingest-bg: #e5f2f6;
  --ingest-ink: #0f4c66;
  --transform: #1a365d;
  --transform-bg: #e7eef6;
  --transform-ink: #12263f;
  --decode: #a35b16;
  --decode-bg: #f8efe4;
  --decode-ink: #6a3d0c;
  --output: #1d6b45;
  --output-bg: #e7f4ec;
  --output-ink: #145233;
  --danger-bg: #f8ebe6;
  --danger-text: #6b3014;
  --radius: 2px;
  --max: 1120px;
  --read: 68ch;
  --font: "IBM Plex Sans", "Segoe UI", "Helvetica Neue", Arial, sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;
  --header: 4.25rem;
  --shadow: 0 1px 0 rgba(18, 38, 63, 0.04);
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font);
  color: var(--text);
  background: var(--paper);
  line-height: 1.6;
  font-size: 1.05rem;
}

img {
  max-width: 100%;
  height: auto;
}

a {
  color: var(--accent);
  text-underline-offset: 0.16em;
}

a:hover {
  color: var(--navy);
}

:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 3px;
}

.skip-link {
  position: absolute;
  left: 0.75rem;
  top: -3.5rem;
  background: var(--surface);
  color: var(--navy);
  padding: 0.55rem 0.85rem;
  z-index: 80;
  text-decoration: none;
  font-weight: 600;
  border: 1px solid var(--line);
}

.skip-link:focus {
  top: 0.75rem;
}

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

#main:focus {
  outline: none;
}

.wrap {
  width: min(var(--max), calc(100% - 2rem));
  margin-inline: auto;
}

.prose {
  max-width: var(--read);
}

.kicker,
.phase,
.meta-row,
.spine,
.toc-label,
.status,
.depth,
.kind,
.filters button,
.score-value,
.example-caption,
.term {
  font-family: var(--mono);
}

.kicker {
  margin: 0 0 0.45rem;
  color: var(--accent);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-weight: 500;
}

h1,
h2,
h3,
h4 {
  color: var(--ink);
  line-height: 1.2;
  font-weight: 560;
  letter-spacing: -0.02em;
}

h1 {
  font-size: clamp(2.1rem, 4.4vw, 3.35rem);
  margin: 0 0 0.6rem;
  font-weight: 600;
}

h2 {
  font-size: clamp(1.45rem, 2.4vw, 1.9rem);
  margin: 0 0 0.6rem;
}

h3 {
  font-size: 1.15rem;
  margin: 0 0 0.4rem;
  letter-spacing: -0.015em;
}

p {
  margin: 0 0 0.9rem;
}

.lead {
  font-size: clamp(1.2rem, 2vw, 1.45rem);
  line-height: 1.45;
  color: var(--ink);
  max-width: 38ch;
  margin-bottom: 0.9rem;
}

.support {
  max-width: 46ch;
  color: var(--muted);
}

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

/* Header */

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: var(--surface);
  border-bottom: 1px solid var(--line);
}

.site-nav {
  position: relative;
  width: min(var(--max), calc(100% - 2rem));
  margin: 0 auto;
  min-height: var(--header);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.nav-brand {
  color: var(--ink);
  text-decoration: none;
  font-weight: 600;
  letter-spacing: -0.03em;
  font-size: 1.05rem;
  padding: 0.4rem 0;
}

.nav-brand small {
  display: block;
  font-family: var(--mono);
  font-weight: 400;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
  font-size: 0.68rem;
}

.nav-toggle {
  display: none;
  min-height: 44px;
  min-width: 44px;
  border: 1px solid var(--line);
  background: var(--surface);
  color: var(--ink);
  font: inherit;
  font-weight: 600;
  padding: 0.4rem 0.8rem;
  cursor: pointer;
}

.nav-panel {
  display: flex;
  align-items: center;
  gap: 0.5rem 1rem;
}

.nav-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.15rem 0.15rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-links a,
.nav-actions a {
  color: var(--ink);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.95rem;
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0.2rem 0.55rem;
}

.nav-links a:hover,
.nav-actions a:hover {
  color: var(--accent);
}

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

.nav-actions {
  display: flex;
  align-items: center;
  gap: 0.15rem;
  padding-left: 0.4rem;
  border-left: 1px solid var(--line);
}

.nav-actions a {
  font-family: var(--mono);
  font-size: 0.82rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

/* Buttons */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0.55rem 1rem;
  border-radius: var(--radius);
  border: 1px solid transparent;
  font: inherit;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  background: transparent;
  color: var(--ink);
}

.btn-primary {
  background: var(--navy);
  color: #fff;
  border-color: var(--navy);
}

.btn-primary:hover {
  background: var(--navy-mid);
  color: #fff;
}

.btn-secondary {
  background: transparent;
  color: var(--navy);
  border-color: #b7c6d4;
}

.btn-secondary:hover {
  background: var(--mist);
  color: var(--ink);
}

.btn-small {
  min-height: 40px;
  padding: 0.35rem 0.75rem;
  font-size: 0.92rem;
}

.cluster {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  align-items: center;
  margin: 1.1rem 0;
}

.tertiary {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 1rem;
  margin: 0.2rem 0 0;
  padding: 0;
  list-style: none;
}

.tertiary a {
  font-family: var(--mono);
  font-size: 0.82rem;
  letter-spacing: 0.03em;
}

/* Hero */

.hero {
  display: grid;
  gap: 2rem;
  padding: 2.2rem 0 1rem;
  align-items: center;
}

.hero-copy .lead {
  max-width: 36ch;
}

.spine {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 0.4rem;
  list-style: none;
  padding: 0;
  margin: 1.5rem 0 0;
  color: var(--muted);
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.spine li {
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.spine li + li::before {
  content: ">";
  color: var(--accent-bright);
}

.map {
  background: var(--surface);
  border: 1px solid var(--line);
  padding: 0.9rem 0.9rem 1rem;
}

.map-head {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: baseline;
}

.map-canvas {
  display: none;
}

@media (max-width: 979px) {
  .map-detail {
    display: none;
  }
}

.map-canvas svg {
  width: 100%;
  height: auto;
  display: block;
}

.map-edge {
  stroke: #c5d3de;
  stroke-width: 1;
}

.map-dot {
  fill: var(--navy);
}

.map-center-dot {
  fill: var(--surface);
  stroke: var(--navy);
  stroke-width: 1.5;
}

.map-label,
.map-center-label {
  fill: var(--ink);
  font-family: var(--font);
  font-size: 13px;
}

.map-center-label {
  font-weight: 600;
  font-size: 13px;
}

.map-node {
  text-decoration: none;
}

.map-node:hover .map-dot,
.map-node:focus .map-dot {
  fill: var(--accent-bright);
}

.map-node:focus-visible {
  outline: none;
}

.map-node:focus-visible .map-dot {
  stroke: var(--accent);
  stroke-width: 3px;
}

.map-detail {
  margin-top: 0.6rem;
  min-height: 4.5rem;
}

.map-detail ul {
  margin: 0.3rem 0 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 0.8rem;
}

.map-fallback details {
  border-top: 1px solid var(--line);
}

.map-fallback summary {
  cursor: pointer;
  min-height: 44px;
  display: flex;
  align-items: center;
  font-weight: 600;
  color: var(--ink);
}

.map-fallback details p {
  color: var(--muted);
  margin-bottom: 0.4rem;
}

.map-fallback ul {
  margin: 0 0 0.8rem;
  padding: 0;
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 0.9rem;
}

/* Sections */

.section {
  padding: 2.4rem 0;
}

.section-alt {
  background: var(--surface);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.section-head {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: end;
  margin-bottom: 1.2rem;
}

.section-head p {
  max-width: 46ch;
  color: var(--muted);
  margin: 0;
}

.trio {
  display: grid;
  gap: 1rem;
}

.trio article,
.card,
.case-block,
.panel,
.callout,
.work-card,
.lab-card,
.research-card {
  background: var(--surface);
  border: 1px solid var(--line);
  padding: 1.1rem 1.15rem 1.15rem;
}

.section-alt .trio article,
.section-alt .work-card,
.section-alt .card {
  background: var(--paper);
}

.trio h3 {
  font-size: 1.45rem;
}

.trio ol,
.link-list,
.plain-list {
  margin: 0.4rem 0 0;
  padding-left: 1.1rem;
}

.link-list {
  list-style: none;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 0.9rem;
}

.work-feature {
  display: grid;
  gap: 1rem;
  margin-bottom: 1rem;
}

.work-grid {
  display: grid;
  gap: 1rem;
}

.work-card h3 {
  font-size: 1.25rem;
}

.work-card h3 a,
.research-card h3 a,
.lab-card h3 a {
  color: var(--ink);
  text-decoration: none;
}

.work-card h3 a:hover,
.research-card h3 a:hover,
.lab-card h3 a:hover {
  color: var(--accent);
}

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

.fact-list li {
  display: grid;
  grid-template-columns: 7.5rem 1fr;
  gap: 0.6rem;
  padding: 0.35rem 0;
  border-top: 1px solid var(--line);
  font-size: 0.98rem;
}

.fact-list strong {
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  font-weight: 500;
  color: var(--muted);
  padding-top: 0.25rem;
}

.kind,
.status,
.depth {
  display: inline-block;
  font-size: 0.72rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--muted);
  border: 1px solid var(--line);
  padding: 0.15rem 0.4rem;
  margin: 0 0.3rem 0.3rem 0;
}

.artifact {
  margin: 0;
}

.artifact svg {
  width: 100%;
  height: auto;
  display: block;
}

.artifact figcaption {
  font-family: var(--mono);
  font-size: 0.75rem;
  color: var(--muted);
  margin-top: 0.4rem;
}

/* Matrix and filters */

.matrix details,
.timeline details,
.disclose {
  border-top: 1px solid var(--line);
  background: var(--surface);
}

.matrix summary,
.timeline summary,
.disclose summary,
.toc-toggle {
  cursor: pointer;
  min-height: 48px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  font-weight: 600;
  color: var(--ink);
  padding: 0.35rem 0.2rem;
  list-style: none;
}

.matrix summary::-webkit-details-marker,
.timeline summary::-webkit-details-marker,
.disclose summary::-webkit-details-marker {
  display: none;
}

.matrix summary::after,
.timeline summary::after,
.disclose summary::after {
  content: "+";
  font-family: var(--mono);
  font-weight: 400;
  color: var(--muted);
}

.matrix details[open] summary::after,
.timeline details[open] summary::after,
.disclose details[open] summary::after {
  content: " to ";
}

.matrix .domain-body,
.timeline .entry-body,
.disclose .disclose-body {
  padding: 0 0.2rem 1rem;
}

.domain-areas {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem 0.8rem;
  list-style: none;
  padding: 0;
  margin: 0.4rem 0 0.8rem;
}

.filters {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin: 0 0 1rem;
}

.filters button {
  min-height: 40px;
  border: 1px solid var(--line);
  background: var(--surface);
  color: var(--ink);
  padding: 0.3rem 0.7rem;
  cursor: pointer;
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.filters button[aria-pressed="true"] {
  background: var(--navy);
  color: #fff;
  border-color: var(--navy);
}

.empty {
  border: 1px dashed var(--line);
  padding: 1rem;
  color: var(--muted);
}

/* Timeline */

.timeline details {
  padding: 0 0.2rem;
}

.entry-line {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.1rem;
  text-align: left;
}

.entry-line span {
  font-family: var(--mono);
  font-size: 0.75rem;
  font-weight: 400;
  color: var(--muted);
  letter-spacing: 0.03em;
}

.tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 0.7rem;
  list-style: none;
  padding: 0;
  margin: 0.6rem 0;
}

/* Article */

.page-hero {
  padding: 2rem 0 0.5rem;
}

.page-hero .lead {
  max-width: 48ch;
  font-size: 1.2rem;
}

.meta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem 1rem;
  list-style: none;
  padding: 0;
  margin: 0.8rem 0 0;
  color: var(--muted);
  font-size: 0.78rem;
  letter-spacing: 0.03em;
}

.layout {
  display: grid;
  gap: 1.5rem;
  padding-bottom: 2.5rem;
}

.thread {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  padding: 0.8rem 0;
  margin: 1rem 0 1.4rem;
}

.thread ul {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 0.9rem;
  list-style: none;
  padding: 0;
  margin: 0.25rem 0 0;
}

.case-block + .case-block {
  margin-top: 0.8rem;
}

.mode-switch,
.tablist {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin: 1rem 0;
}

.mode-switch button,
.tablist button {
  min-height: 44px;
  border: 1px solid var(--line);
  background: var(--surface);
  font: inherit;
  font-weight: 600;
  padding: 0.35rem 0.8rem;
  cursor: pointer;
  color: var(--ink);
}

.mode-switch button[aria-selected="true"],
.tablist button[aria-selected="true"] {
  background: var(--navy);
  color: #fff;
  border-color: var(--navy);
}

.toc ol {
  list-style: none;
  padding: 0;
  margin: 0.4rem 0 0;
}

.toc a {
  display: inline-flex;
  align-items: center;
  min-height: 36px;
  text-decoration: none;
  color: var(--muted);
}

.toc a:hover {
  color: var(--accent);
}

.toc-toggle {
  display: none;
}

.callout {
  background: var(--mist);
  margin: 1rem 0;
}

.callout.what-matters {
  border-left: 3px solid var(--navy);
}

.phase {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 0.15rem 0.45rem;
  margin-bottom: 0.45rem;
}

.phase .shape {
  width: 0.55rem;
  height: 0.55rem;
  display: inline-block;
  flex: none;
}

.phase.ingest {
  background: var(--ingest-bg);
  color: var(--ingest-ink);
}

.phase.ingest .shape {
  border-radius: 50%;
  background: var(--ingest);
}

.phase.transform {
  background: var(--transform-bg);
  color: var(--transform-ink);
}

.phase.transform .shape {
  background: var(--transform);
}

.phase.decode {
  background: var(--decode-bg);
  color: var(--decode-ink);
}

.phase.decode .shape {
  background: var(--decode);
  transform: rotate(45deg);
  width: 0.48rem;
  height: 0.48rem;
}

.phase.output {
  background: var(--output-bg);
  color: var(--output-ink);
}

.phase.output .shape {
  background: var(--output);
  clip-path: polygon(50% 0, 100% 100%, 0 100%);
}

.example-bar {
  position: sticky;
  top: var(--header);
  z-index: 6;
  background: var(--surface);
  border: 1px solid var(--line);
  padding: 0.75rem 0.9rem;
  margin: 0.5rem 0 1rem;
}

.example-line {
  font-family: var(--mono);
  font-size: 0.95rem;
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  align-items: center;
}

.tok,
.tok-btn {
  font-family: var(--mono);
  font-size: 0.92rem;
  border: 1px solid var(--line);
  background: var(--paper);
  color: var(--ink);
  padding: 0.2rem 0.45rem;
  line-height: 1.4;
}

.tok.is-new {
  background: var(--output-bg);
  border-color: var(--output);
}

.tok small,
.id-chip small {
  display: block;
  color: var(--muted);
  font-size: 0.68rem;
}

.example-caption,
.cache-flag {
  margin: 0.45rem 0 0;
  color: var(--muted);
  font-size: 0.85rem;
}

.cache-flag[hidden] {
  display: none;
}

.pipeline-controls {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 0.8rem;
}

.pipeline {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 0.75rem;
}

.stage {
  border: 1px solid var(--line);
  background: var(--surface);
  padding: 0.9rem;
  min-width: 0;
}

.stage.is-current {
  border-color: var(--navy);
  box-shadow: inset 3px 0 0 var(--navy);
}

.stage-visual {
  margin-top: 0.7rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.layer-split {
  display: grid;
  gap: 0.4rem;
  width: 100%;
}

.layer-box {
  border: 1px solid var(--line);
  padding: 0.55rem 0.65rem;
  background: var(--paper);
}

.layer-box strong {
  display: block;
  font-size: 0.92rem;
}

.score {
  display: grid;
  grid-template-columns: 5.5rem 1fr auto;
  gap: 0.45rem;
  align-items: center;
  width: 100%;
  margin: 0.15rem 0;
}

.score-label {
  font-family: var(--mono);
  font-size: 0.85rem;
}

meter {
  width: 100%;
  height: 0.75rem;
}

.score.is-out {
  opacity: 0.45;
}

.vec {
  font-family: var(--mono);
  font-size: 0.78rem;
  background: var(--paper);
  border: 1px solid var(--line);
  padding: 0.35rem 0.45rem;
  margin: 0;
}

.loop-note {
  display: grid;
  gap: 0.6rem;
  margin-top: 1rem;
}

/* Terms */

.term-wrap {
  position: relative;
  display: inline;
}

.term {
  appearance: none;
  border: none;
  background: transparent;
  color: var(--accent);
  font-size: 0.92em;
  padding: 0 0.05rem;
  border-bottom: 1px dotted var(--accent-bright);
  cursor: help;
  font-weight: 500;
  line-height: inherit;
}

/* The spoken definition lives in the fixed bar. This node stays in the
   accessibility tree for aria-describedby and is not painted over the prose. */
.term-pop {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.definition-bar {
  position: fixed;
  z-index: 45;
  left: 0;
  right: 0;
  bottom: 0;
  display: flex;
  gap: 1rem;
  align-items: flex-start;
  justify-content: space-between;
  background: var(--ink);
  color: #f4f7f8;
  padding: 0.85rem 1.1rem calc(0.85rem + env(safe-area-inset-bottom));
  border-top: 3px solid var(--accent-bright);
}

.definition-bar[hidden] {
  display: none;
}

.definition-bar p {
  margin: 0;
  max-width: 75ch;
}

.definition-bar strong {
  font-family: var(--mono);
  font-size: 0.82rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  display: block;
  margin-bottom: 0.2rem;
}

.definition-bar button {
  flex: none;
  min-height: 44px;
  min-width: 44px;
  background: transparent;
  color: #f4f7f8;
  border: 1px solid #8aa0b3;
  font: inherit;
  padding: 0.35rem 0.75rem;
  cursor: pointer;
}

.glossary-block {
  margin-top: 1.5rem;
  border-top: 1px solid var(--line);
}

.glossary-block summary {
  cursor: pointer;
  min-height: 44px;
  display: flex;
  align-items: center;
  font-weight: 600;
  color: var(--ink);
}

.glossary-block dt {
  font-weight: 600;
  margin-top: 0.8rem;
}

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

/* Attention and playground */

.token-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin: 0.6rem 0;
}

.tok-btn {
  min-height: 44px;
  cursor: pointer;
}

.tok-btn[aria-pressed="true"] {
  background: var(--navy);
  color: #fff;
  border-color: var(--navy);
}

.tok-btn.is-hot:not([aria-pressed="true"]) {
  background: #d7e6ef;
  border-color: var(--accent-bright);
  font-weight: 600;
}

.tok-btn.is-warm:not([aria-pressed="true"]) {
  background: var(--mist);
}

.control {
  display: grid;
  gap: 0.2rem;
  margin-bottom: 0.8rem;
}

.control input[type="range"] {
  width: 100%;
  min-height: 44px;
}

.control-head {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  font-weight: 600;
}

.control-head output {
  font-family: var(--mono);
  font-weight: 400;
}

.playground .prompt {
  font-family: var(--mono);
  font-size: 0.95rem;
}

.sample-result {
  min-height: 1.5rem;
  font-family: var(--mono);
}

.workload-visual {
  display: grid;
  gap: 0.7rem;
  margin: 0.8rem 0;
}

.track {
  position: relative;
  height: 3rem;
  border: 1px dashed var(--line);
  background: var(--paper);
  overflow: hidden;
}

.flow {
  position: absolute;
  top: 0.7rem;
  font-family: var(--mono);
  font-size: 0.75rem;
  background: var(--surface);
  border: 1px solid var(--navy);
  padding: 0.2rem 0.4rem;
}

.prefill-flows .flow:nth-child(1) { left: 8%; }
.prefill-flows .flow:nth-child(2) { left: 28%; }
.prefill-flows .flow:nth-child(3) { left: 48%; }
.prefill-flows .flow:nth-child(4) { left: 68%; }

.decode-flows .flow {
  left: 12%;
}

.cache-pile {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
}

.cache-pile span {
  font-family: var(--mono);
  font-size: 0.75rem;
  border: 1px solid var(--line);
  padding: 0.2rem 0.4rem;
  background: var(--mist);
}

.js .mode-panel:not(.is-active),
.js .workload-panel:not(.is-active) {
  display: none;
}

.js .is-animated .prefill-flows .flow {
  animation: march 2.8s linear infinite;
}

.js .is-animated .decode-flows .flow {
  animation: stepin 2.4s ease-in-out infinite;
}

@keyframes march {
  from { transform: translateX(0); } to { transform: translateX(18px); }
}

@keyframes stepin {
  0% { transform: translateX(0); opacity: 0.4; }
  30% { opacity: 1; }
  100% { transform: translateX(70px); opacity: 1; }
}

.stack {
  list-style: none;
  padding: 0;
  margin: 0.6rem 0 0;
}

.stack li {
  border: 1px solid var(--line);
  border-left: 3px solid var(--navy);
  padding: 0.65rem 0.75rem;
  margin-bottom: 0.45rem;
  background: var(--surface);
}

.stack li:nth-child(2) { margin-left: 0.6rem; }
.stack li:nth-child(3) { margin-left: 1.2rem; }
.stack li:nth-child(4) { margin-left: 1.8rem; }
.stack li:nth-child(5) { margin-left: 2.4rem; }

.portrait {
  width: min(240px, 60vw);
  height: auto;
  border: 1px solid var(--line);
  display: block;
}

.path {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 0.6rem;
}

.path li {
  display: grid;
  grid-template-columns: 7rem 1fr;
  gap: 0.7rem;
  border-top: 1px solid var(--line);
  padding-top: 0.55rem;
}

.path strong {
  font-family: var(--mono);
  font-size: 0.75rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  font-weight: 500;
  color: var(--muted);
}

/* Forms */

form {
  display: grid;
  gap: 0.35rem;
  max-width: 38rem;
}

label {
  font-weight: 600;
  margin-top: 0.45rem;
}

input,
select,
textarea {
  font: inherit;
  color: var(--ink);
  background: var(--surface);
  border: 1px solid #b7c6d4;
  padding: 0.6rem 0.65rem;
  width: 100%;
  border-radius: var(--radius);
}

textarea {
  min-height: 8rem;
  resize: vertical;
}

.note {
  background: var(--danger-bg);
  color: var(--danger-text);
  padding: 0.7rem 0.8rem;
  border: 1px solid #efd2c6;
}

.sources {
  padding-left: 1.1rem;
}

.sources li {
  margin-bottom: 0.55rem;
}

.site-footer {
  border-top: 1px solid var(--line);
  padding: 1.6rem 0 2rem;
  color: var(--muted);
  font-size: 0.95rem;
}

.footer-grid {
  display: grid;
  gap: 1rem;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem 1rem;
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-links a {
  color: var(--ink);
  text-decoration: none;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
}

code,
pre {
  font-family: var(--mono);
  font-size: 0.88rem;
}

pre {
  background: var(--ink);
  color: #e7eef2;
  padding: 0.9rem 1rem;
  overflow-x: auto;
  line-height: 1.5;
}

.breakout {
  margin: 1rem 0;
}

table {
  border-collapse: collapse;
  width: 100%;
  font-size: 0.95rem;
}

th,
td {
  border-bottom: 1px solid var(--line);
  text-align: left;
  padding: 0.4rem 0.45rem;
  vertical-align: top;
}

th {
  font-family: var(--mono);
  font-size: 0.75rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  font-weight: 500;
  color: var(--muted);
}

.about-grid {
  display: grid;
  gap: 1.2rem;
  align-items: start;
}

/* Desktop */

@media (min-width: 800px) {
  .trio {
    grid-template-columns: repeat(3, 1fr);
  }

  .work-grid {
    grid-template-columns: 1fr 1fr;
  }

  .footer-grid {
    grid-template-columns: 1.4fr 1fr;
  }

  .about-grid {
    grid-template-columns: 240px 1fr;
  }

  .loop-note {
    grid-template-columns: 1.2fr 0.8fr;
  }

  .path li {
    grid-template-columns: 9rem 1fr;
  }
}

@media (min-width: 980px) {
  .hero {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    gap: 2.5rem;
    padding-top: 3rem;
  }

  .map-canvas {
    display: block;
  }

  .map-fallback {
    display: none;
  }

  .work-feature {
    grid-template-columns: 1.15fr 0.85fr;
    align-items: center;
  }

  .layout.with-toc {
    grid-template-columns: 14rem minmax(0, 1fr);
    align-items: start;
  }

  .toc {
    position: sticky;
    top: calc(var(--header) + 0.8rem);
  }

  .toc-toggle {
    display: block;
    padding: 0;
    min-height: 0;
    cursor: default;
    font-family: var(--mono);
    font-size: 0.75rem;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--muted);
    font-weight: 500;
  }

  .pipeline {
    grid-auto-flow: column;
    grid-auto-columns: minmax(16.5rem, 18.5rem);
    grid-template-columns: none;
    overflow-x: auto;
    scroll-snap-type: x proximity;
    padding-bottom: 0.6rem;
  }

  .stage {
    scroll-snap-align: start;
  }

  .layer-split {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 979px) {
  .js .nav-toggle {
    display: inline-flex;
  }

  .js .nav-panel {
    display: none;
    position: absolute;
    left: 0;
    right: 0;
    top: 100%;
    background: var(--surface);
    border-bottom: 1px solid var(--line);
    flex-direction: column;
    align-items: stretch;
    padding: 0.25rem 1rem 1rem;
    gap: 0.2rem;
  }

  .js .nav-panel.is-open {
    display: flex;
  }

  .js .nav-links,
  .js .nav-actions {
    flex-direction: column;
    align-items: stretch;
    border-left: 0;
    padding-left: 0;
  }

  .toc-toggle {
    display: flex;
  }

  .js .toc:not(.is-open) ol {
    display: none;
  }

  .stack li,
  .stack li:nth-child(n) {
    margin-left: 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
  }

  .tok.is-new {
    background: var(--output-bg);
  }
}

@media print {
  .site-header,
  .nav-toggle,
  .filters,
  .mode-switch,
  .pipeline-controls,
  .site-footer {
    display: none !important;
  }

  body {
    background: #fff;
  }

  .term-pop {
    display: none !important;
  }

  a {
    text-decoration: underline;
  }
}