:root {
  --paper: var(--bg);
  --panel: var(--card);
  --muted: var(--dim);
  --accent-soft: #eaf4fc;
  --mono: ui-monospace, Consolas, "SF Mono", Menlo, monospace;
}

@media (prefers-color-scheme: dark) {
  :root { --accent-soft: #172a3b; }
}

.home {
  width: min(1120px, calc(100% - 40px));
  max-width: none;
  margin: 0 auto;
  padding: 0;
}

.site-header {
  width: min(1120px, calc(100% - 40px));
  margin: 0 auto;
  padding: 22px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
}

.site-header .brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--ink);
  font-weight: 750;
  text-decoration: none;
}

.site-header nav {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
}

.site-header nav a,
footer a {
  color: var(--muted);
  font-size: .94rem;
  text-decoration: none;
}

.site-header nav a:hover,
.site-header nav a:focus-visible,
footer a:hover,
footer a:focus-visible {
  color: var(--accent);
}

.hero,
.boundary,
.cases-home,
.explorer,
.code-section,
.adoption,
.resources {
  padding: 86px 0;
}

.hero-aside {
  padding: 28px 30px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--card);
}

.hero-aside h2 {
  margin: 0 0 14px;
  padding: 0;
  border: 0;
  font-size: 1.25rem;
  letter-spacing: -.02em;
}

.hero-aside p {
  max-width: none;
  font-size: .98rem;
  line-height: 1.55;
}

.hero-aside p:last-child { margin-bottom: 0; }

@media (max-width: 1199px) {
  .hero-aside { margin-top: 48px; }
}

.what-it-is p {
  max-width: 760px;
  margin: 0 0 16px;
  color: var(--muted);
  font-size: 1.05rem;
  line-height: 1.6;
}

.what-it-is p:last-child {
  margin-bottom: 0;
}

.hero {
  padding-top: 108px;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--accent);
  font-size: .78rem;
  font-weight: 800;
  letter-spacing: .12em;
  text-transform: uppercase;
}

.hero h1 {
  max-width: 850px;
  margin: 0;
  font-size: clamp(3rem, 8vw, 5.5rem);
  line-height: .96;
  letter-spacing: -.065em;
}

.hero-copy {
  max-width: 760px;
  margin: 30px 0 0;
  color: var(--muted);
  font-size: clamp(1.1rem, 2vw, 1.35rem);
  line-height: 1.65;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

.button {
  display: inline-flex;
  min-height: 46px;
  align-items: center;
  justify-content: center;
  padding: 0 20px;
  border: 1px solid var(--line);
  border-radius: 9px;
  font-weight: 700;
  text-decoration: none;
}

.button.primary {
  border-color: var(--accent);
  background: var(--accent);
  color: #fff;
}

.button.secondary {
  background: var(--panel);
  color: var(--ink);
}

.availability {
  max-width: 740px;
  margin-top: 24px;
  color: var(--muted);
  font-size: .92rem;
}

@media (min-width: 1200px) {
  .hero {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(360px, 460px);
    column-gap: 64px;
    align-items: center;
  }

  .hero h1 { max-width: 16ch; }
  .hero-copy { max-width: 62ch; }
}

.section-heading {
  max-width: 720px;
  margin-bottom: 34px;
}

.section-heading h2 {
  margin: 0 0 14px;
  padding: 0;
  border: 0;
  font-size: clamp(2.1rem, 5vw, 3.5rem);
  line-height: 1.04;
  letter-spacing: -.045em;
}

.section-heading > p:last-child {
  margin: 0;
  color: var(--muted);
  font-size: 1.08rem;
}

.boundary,
.code-section,
.resources {
  border-top: 1px solid var(--line);
}

.flow {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  padding: 0;
  margin: 38px 0 0;
  list-style: none;
}

.flow li {
  position: relative;
  display: grid;
  align-content: start;
  min-height: 188px;
  padding: 24px;
  border: 1px solid var(--line);
  background: var(--panel);
}

.flow li + li {
  border-left: 0;
}

.flow .step {
  width: 28px;
  height: 28px;
  margin-bottom: 36px;
  border-radius: 50%;
  background: var(--accent-soft);
  color: var(--accent);
  font-size: .8rem;
  font-weight: 800;
  line-height: 28px;
  text-align: center;
}

.flow strong {
  margin-bottom: 7px;
  font-size: 1rem;
}

.flow li > span:last-child {
  color: var(--muted);
  font-size: .91rem;
  line-height: 1.5;
}

.architecture-link {
  margin: 22px 0 0;
}

.explorer {
  margin: 0;
  padding-right: 20px;
  padding-left: 20px;
  background: var(--panel);
}

.explorer-grid {
  display: grid;
  grid-template-columns: minmax(190px, .62fr) minmax(0, 1.7fr);
  gap: 48px;
}

.capability-carousel {
  max-width: 900px;
  border-radius: 14px;
}

.carousel-controls {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 18px;
  margin-bottom: 12px;
}

.carousel-controls p {
  margin: 0;
  color: var(--muted);
  text-align: center;
}

.carousel-controls button {
  min-height: 42px;
  padding: 0 15px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--paper);
  color: var(--ink);
  font: inherit;
  font-weight: 700;
  cursor: pointer;
}

.carousel-controls button:disabled {
  cursor: default;
  opacity: .45;
}

.capability-intro {
  max-width: 720px;
  margin: 15px 0 24px;
  color: var(--muted);
  font-size: 1.1rem;
  line-height: 1.65;
}

.capability-flow {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin: 0 0 28px;
  padding: 0;
  counter-reset: capability-step;
  list-style: none;
}

.capability-flow li {
  position: relative;
  min-height: 140px;
  padding: 48px 18px 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  line-height: 1.5;
  counter-increment: capability-step;
}

.capability-flow li::before {
  content: counter(capability-step);
  position: absolute;
  top: 15px;
  left: 18px;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--accent-soft);
  color: var(--accent);
  font-size: .75rem;
  font-weight: 800;
  line-height: 24px;
  text-align: center;
}

.capability-detail {
  padding-top: 18px;
  border-top: 1px solid var(--line);
}

.capability-detail summary {
  color: var(--accent);
  font-weight: 750;
  cursor: pointer;
}

.capability-detail > p {
  max-width: 740px;
  margin: 14px 0;
  color: var(--muted);
}

.carousel-help {
  margin: 11px 0 0;
  color: var(--muted);
  font-size: .82rem;
}

.explorer-menu label {
  display: block;
  margin-bottom: 8px;
  font-size: .82rem;
  font-weight: 750;
}

.explorer-menu select {
  width: 100%;
  min-height: 48px;
  padding: 0 40px 0 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--paper);
  color: var(--ink);
  font: inherit;
}

.explorer-hint {
  color: var(--muted);
  font-size: .87rem;
  line-height: 1.55;
}

.capability-card {
  padding: 34px;
  border: 1px solid var(--line);
  border-radius: 13px;
  background: var(--paper);
  box-shadow: 0 15px 35px rgba(17, 24, 39, .05);
}

.capability-card.capability-card-highlight {
  animation: capability-card-flash 600ms ease-out;
}

@keyframes capability-card-flash {
  from { background: var(--accent-soft); }
  to { background: var(--paper); }
}

.contract {
  margin: 0 0 7px;
  color: var(--accent);
  font-family: var(--mono);
  font-size: .76rem;
}

.capability-card h3 {
  margin: 0;
  font-size: 2rem;
}

.tag-word {
  cursor: help;
  border-bottom: 1px dotted var(--muted);
}

.capability-card dl {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0;
  margin: 30px 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.capability-card dl > div {
  padding: 22px 18px 22px 0;
}

.capability-card dl > div + div {
  padding-left: 18px;
  border-left: 1px solid var(--line);
}

.capability-card dt,
.outcomes dt {
  margin-bottom: 7px;
  color: var(--muted);
  font-size: .72rem;
  font-weight: 800;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.capability-card dd,
.outcomes dd {
  margin: 0;
  line-height: 1.55;
}

.capability-links {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
}

.capability-sample {
  margin: 0 0 24px;
}

.capability-sample > span {
  color: var(--muted);
  font-size: .72rem;
  font-weight: 800;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.capability-sample pre {
  margin: 8px 0 0;
  padding: 14px 16px;
  overflow-x: auto;
  background: var(--code);
}

.capability-links a {
  font-weight: 700;
}

.code-browser {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 13px;
  background: #10151d;
  color: #e7edf4;
  box-shadow: 0 18px 42px rgba(17, 24, 39, .14);
}

.tab-list {
  display: flex;
  gap: 4px;
  padding: 12px 14px 0;
  border-bottom: 1px solid #303946;
}

.tab-list button {
  padding: 10px 16px;
  border: 0;
  border-bottom: 3px solid transparent;
  background: transparent;
  color: #9eabb9;
  font: inherit;
  font-size: .87rem;
  font-weight: 700;
  cursor: pointer;
}

.tab-list button[aria-selected="true"] {
  border-bottom-color: #82d9b7;
  color: #fff;
}

.code-browser pre {
  min-height: 195px;
  margin: 0;
  padding: 30px;
  overflow-x: auto;
  background: transparent;
  color: inherit;
  font-size: .88rem;
  line-height: 1.7;
}

.code-note {
  color: var(--muted);
  font-size: .91rem;
}

.adoption {
  margin: 0;
  padding-right: 20px;
  padding-left: 20px;
  background: var(--accent-soft);
}

.adoption-grid {
  display: grid;
  grid-template-columns: 1.2fr .8fr;
  gap: 46px;
}

.adoption-story ol {
  margin: 0;
  padding-left: 24px;
}

.adoption-story li {
  padding: 8px 0 18px 8px;
  line-height: 1.6;
}

.outcomes {
  padding: 28px;
  border: 1px solid rgba(29, 109, 82, .25);
  border-radius: 11px;
  background: var(--paper);
}

.outcomes h3 {
  margin-top: 0;
}

.outcomes dl,
.outcomes dl > div:last-child {
  margin-bottom: 0;
}

.outcomes dl > div {
  margin-bottom: 18px;
}

.resource-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.resource-grid a {
  display: grid;
  min-height: 130px;
  align-content: start;
  gap: 10px;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--panel);
  color: var(--ink);
  text-decoration: none;
}

.resource-grid a:hover,
.resource-grid a:focus-visible {
  border-color: var(--accent);
  transform: translateY(-2px);
}

.resource-grid span {
  color: var(--muted);
  font-size: .9rem;
  line-height: 1.5;
}

footer {
  width: min(1120px, calc(100% - 40px));
  margin: 0 auto;
  padding: 34px 0 48px;
  border-top: 1px solid var(--line);
  display: flex;
  gap: 22px;
  color: var(--muted);
  font-size: .9rem;
}

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

@media (max-width: 820px) {
  .flow,
  .capability-card dl,
  .resource-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .flow li + li {
    border-left: 1px solid var(--line);
  }

  .explorer-grid,
  .adoption-grid {
    grid-template-columns: 1fr;
  }

  .capability-flow {
    grid-template-columns: 1fr;
  }

  .capability-flow li {
    min-height: 0;
  }

  .capability-card dl > div + div {
    padding-left: 0;
    border-left: 0;
  }
}

@media (max-width: 590px) {
  .site-header {
    align-items: flex-start;
    flex-direction: column;
  }

  .site-header nav {
    gap: 14px;
  }

  .hero {
    padding-top: 70px;
  }

  .hero h1 {
    font-size: clamp(2.8rem, 15vw, 4.5rem);
  }

  .hero,
  .boundary,
  .explorer,
  .code-section,
  .adoption,
  .resources {
    padding-top: 66px;
    padding-bottom: 66px;
  }

  .flow,
  .capability-card dl,
  .resource-grid {
    grid-template-columns: 1fr;
  }

  .flow li {
    min-height: 150px;
  }

  .capability-card {
    padding: 24px;
  }

  .carousel-controls {
    grid-template-columns: 1fr 1fr;
  }

  .carousel-controls p {
    grid-column: 1 / -1;
    grid-row: 1;
  }

  .capability-card dl > div {
    padding: 18px 0;
  }

  .capability-card dl > div + div {
    border-top: 1px solid var(--line);
  }

  .code-browser pre {
    padding: 22px;
  }

  footer {
    flex-wrap: wrap;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition: none !important;
  }
}

.capability-groups { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 28px; margin-bottom: 8px; }
.capability-group h3 { margin: 0 0 6px; padding: 0; border: 0; font-size: 1.05rem; }
.capability-group > p { margin: 0 0 14px; color: var(--muted); font-size: .92rem; max-width: 46ch; }
@media (max-width: 760px) {
  .capability-groups { grid-template-columns: 1fr; }
}
.capability-picker { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 28px; }
.capability-picker button { padding: 9px 13px; border: 1px solid var(--line); border-radius: 7px; background: var(--paper); color: var(--ink); font: inherit; cursor: pointer; }
.capability-picker button[aria-pressed="true"] { background: var(--accent); color: white; border-color: var(--accent); }
.capability-sample[hidden] { display: none; }

.capability-example figure { margin: 0 0 28px; }
.capability-example figcaption { color: var(--muted); font-size: .83rem; margin-bottom: 18px; }
.capability-example p { line-height: 1.6; }
.capability-example small { display: block; color: var(--muted); }
.capability-example code { overflow-wrap: anywhere; }
.capability-example pre { overflow-x: auto; padding: 22px; background: var(--code); font-size: .84rem; }
.lifetime { display: grid; grid-template-columns: 130px 1fr; gap: 12px; align-items: center; margin: 18px 0; }
.life-track { display: flex; border-radius: 7px; overflow: hidden; background: var(--accent-soft); }
.life-track span { flex: 1; padding: 16px 10px; text-align: center; }
.life-track .offline { background: var(--paper); border: 1px dashed var(--line); color: var(--muted); }
.continuous { padding: 16px; display: block; text-align: center; overflow-wrap: anywhere; }
.download-file, .credential-name, .content-center, .discovery-request { display: grid; gap: 10px; padding: 24px; border: 1px solid var(--line); border-radius: 9px; }
.download-file { grid-template-columns: 1fr auto; background: var(--accent-soft); }
.check-values, .lookup-record, .identity-record { margin: 16px 0; }
.check-values > div, .lookup-record > div, .identity-record > div { display: grid; grid-template-columns: 1fr 1.4fr; gap: 14px; padding: 13px 0; border-bottom: 1px solid var(--line); }
.capability-example dd { margin: 0; }
.example-success { color: var(--accent); font-weight: 700; }
.example-table { width: 100%; font-size: .9rem; border-collapse: collapse; }
.example-table th, .example-table td { padding: 14px 12px; text-align: left; border-bottom: 1px solid var(--line); overflow-wrap: anywhere; }
.chosen { background: var(--accent-soft); }
.secret-card { margin: 14px 0 0 35px; border-left: 4px solid var(--accent); padding: 20px; display: grid; gap: 12px; background: var(--panel); }
.content-apps { display: flex; justify-content: space-around; gap: 12px; flex-wrap: wrap; margin-bottom: 22px; }
.content-apps span { padding: 12px; border-bottom: 2px solid var(--accent); }
.content-center { text-align: center; max-width: 320px; margin: auto; background: var(--accent-soft); }
.modality-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; }
.modality-grid > div { padding: 18px; border: 1px solid var(--line); border-radius: 8px; }
.modality-grid dt { font-weight: bold; margin-bottom: 8px; }
.proposal, .question-card { border: 1px solid var(--line); border-radius: 10px; padding: 24px; background: var(--panel); }
.proposal h4, .question-card h4 { margin: 14px 0; font-size: 1.3rem; }
.proposal-context { color: var(--muted); font-size: .85rem; }
.before-after { display: flex; align-items: center; justify-content: center; gap: 34px; margin: 26px 0; }
.before-after strong { font-size: 3rem; }
.answer-options { display: flex; gap: 12px; }
.answer-options span { padding: 9px 22px; border: 1px solid var(--line); border-radius: 6px; }
.discovery-outcomes, .competing-writers { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; margin-top: 14px; }
.discovery-outcomes > div, .competing-writers > div { padding: 20px; border: 1px solid var(--line); border-radius: 8px; }
.cas-base { padding: 18px; text-align: center; background: var(--accent-soft); }
.watch-example svg { width: 100%; height: auto; color: var(--accent); }
@media (max-width: 590px) {
 .lifetime { grid-template-columns: 1fr; }
 .life-track { font-size: .8rem; }
 .download-file, .modality-grid, .discovery-outcomes, .competing-writers { grid-template-columns: 1fr; }
 .example-table th, .example-table td { padding: 10px 6px; font-size: .78rem; }
 .secret-card { margin-left: 0; }
 .check-values > div, .lookup-record > div, .identity-record > div { grid-template-columns: 1fr; gap: 5px; }
}

.release-downloads { display: flex; align-items: center; flex-wrap: wrap; gap: 14px 24px; margin: 24px 0 12px; }
.release-link { font-weight: 700; text-underline-offset: 4px; }
.release-platforms { display: flex; flex-wrap: wrap; gap: 16px; color: var(--muted); font-size: .9rem; }
.release-platforms > a { display: inline-flex; align-items: center; gap: 6px; }
.release-platforms svg { width: 20px; height: 20px; fill: currentColor; flex-shrink: 0; }

.release-note {
  max-width: 620px;
  margin: 4px 0 0;
  color: var(--muted);
  font-size: .82rem;
}

.measured {
  margin: 6px 0 0;
  color: var(--muted);
  font-size: .82rem;
}

/* Tool carousel surface: a distinct background from .capability-card, so the
   tools showcase lower on the page does not read as the same carousel. */
.tool-slide.tool-carousel-surface {
  background: var(--code);
}

/* Panel screenshots (index.html tools section, adopt.html): full content-column
   width, at a readable size, with a link to the full-size image. */
.panel-shot {
  display: block;
  max-width: 100%;
  height: auto;
}

.panel-shot img {
  display: block;
  width: 100%;
  height: auto;
}

.tool-preview > a,
.adopt-panel-figures figure > a {
  display: block;
}

.adopt-panel-figures {
  flex-direction: column;
}