:root {
  color-scheme: light;
  --orbit-page: #fff;
  --orbit-text: #191919;
  --orbit-muted: #626262;
  --orbit-line: #e5e5e5;
  --orbit-tint: #f5f5f5;
  --orbit-section-gap: 3rem;
  --orbit-section-inset: 2rem;
  --orbit-heading-gap: 1.5rem;
  --orbit-copy-gap: 1rem;
  --orbit-small-gap: .75rem;
  font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 100%;
  line-height: 1.65;
  color: var(--orbit-text);
  background: var(--orbit-page);
  -webkit-font-smoothing: antialiased;
}

* { box-sizing: border-box; }
body { margin: 0; }
h1, h2, h3, p, figure, dl { margin: 0; }
img { display: block; max-width: 100%; height: auto; }
button, input, select, textarea { font: inherit; }
button, summary { cursor: pointer; }
a { color: inherit; text-underline-offset: .2em; text-decoration-thickness: 1px; }
a:hover { text-decoration-thickness: 2px; }
:where(a, button, input, select, textarea, summary, [tabindex]):focus-visible {
  outline: 2px solid var(--orbit-text);
  outline-offset: 4px;
}

.orbit-page {
  width: min(100%, 64rem);
  margin-inline: auto;
  padding: 2.75rem 2.5rem 5rem;
  overflow-wrap: anywhere;
}

.skip-link { position: absolute; top: .75rem; left: 1rem; transform: translateY(-200%); }
.skip-link:focus { z-index: 1; transform: none; background: var(--orbit-page); padding: .5rem 1rem; }
.context { padding-bottom: 1.25rem; margin-bottom: var(--orbit-section-inset); border-bottom: 1px solid var(--orbit-line); font-size: .875rem; }
.context > p:first-child { font-weight: 500; }
.metadata { color: var(--orbit-muted); font-size: .875rem; }
.context .metadata { margin-top: .125rem; }
.page-heading { max-width: 44rem; margin-bottom: var(--orbit-section-inset); }
h1 { font-size: clamp(2.25rem, 4vw, 3rem); line-height: 1.12; letter-spacing: -.04em; font-weight: 500; text-wrap: balance; }
h2 { font-size: 1.625rem; line-height: 1.25; letter-spacing: -.025em; font-weight: 500; }
h3 { font-size: 1.125rem; line-height: 1.4; letter-spacing: -.015em; font-weight: 500; }
.lead { font-size: 1.125rem; line-height: 1.65; margin-top: var(--orbit-heading-gap); }
.section { margin-top: var(--orbit-section-gap); padding-top: var(--orbit-section-inset); border-top: 1px solid var(--orbit-line); }
.section > h2 { margin-bottom: var(--orbit-heading-gap); }
.section > p + p { margin-top: var(--orbit-copy-gap); }
.section > p { max-width: 44rem; }
.content-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--orbit-section-inset); }
.content-grid > * { min-width: 0; }

.facts > div { display: flex; flex-wrap: wrap; gap: .5rem 1.5rem; padding: 1rem 0; border-bottom: 1px solid var(--orbit-line); }
.facts > div:first-child { padding-top: 0; }
.facts > div:last-child { border-bottom: 0; }
.facts dt { flex: 1 1 5.5rem; min-width: 0; color: var(--orbit-muted); }
.facts dd { flex: 2.5 1 12rem; min-width: 0; margin: 0; }

.item-list { margin: 0; padding-left: 1.5rem; }
.item-list > li { padding: 1.25rem 0 1.25rem .5rem; border-bottom: 1px solid var(--orbit-line); }
.item-list > li:first-child { padding-top: 0; }
.item-list > li:last-child { padding-bottom: 0; border-bottom: 0; }
.item-list p, .timeline p { margin-top: var(--orbit-small-gap); max-width: 44rem; }
.item-list .metadata { margin-top: .375rem; }
.recommendation { border: 1px solid var(--orbit-line); border-radius: .875rem; padding: 1.5rem; }
.recommendation > * + * { margin-top: var(--orbit-small-gap); }

.feature-image { margin-block: var(--orbit-section-inset); }
.feature-image img { width: 100%; aspect-ratio: 2.8; object-fit: cover; border-radius: .875rem; }
.feature-image figcaption { color: var(--orbit-muted); font-size: .875rem; line-height: 1.5; margin-top: .625rem; }
.product-image, .feature-image .product-image { width: 100%; max-height: 18rem; object-fit: contain; }

.table-scroll { overflow-x: auto; border: 1px solid var(--orbit-line); border-radius: .75rem; }
.comparison { width: 100%; border-collapse: collapse; text-align: left; font-size: .875rem; }
.comparison caption { text-align: left; font-size: 1rem; font-weight: 500; padding: 1rem 1.25rem; }
.comparison th, .comparison td { padding: 1rem 1.25rem; border-bottom: 1px solid var(--orbit-line); vertical-align: top; min-width: 9rem; }
.comparison th { font-weight: 500; }
.comparison thead, .comparison .recommended { background: var(--orbit-tint); }
.comparison tbody tr:last-child > * { border-bottom: 0; }

.timeline { margin: 0; padding: 0; list-style: none; }
.timeline > li { display: grid; grid-template-columns: minmax(3.5rem, 1fr) minmax(0, 7fr); gap: 1.25rem; }
.timeline > li > :first-child { font-size: .875rem; color: var(--orbit-muted); font-variant-numeric: tabular-nums; }
.timeline > li > div { padding: 0 0 var(--orbit-section-inset) 1.25rem; border-left: 1px solid var(--orbit-line); }
.timeline > li:last-child > div { padding-bottom: 0; }

.checklist { list-style: none; padding: 0; margin: 0; }
.checklist li + li { border-top: 1px solid var(--orbit-line); }
.checklist label { display: flex; align-items: flex-start; gap: .75rem; padding: .875rem 0; cursor: pointer; }
.checklist input { width: 1.125rem; height: 1.125rem; flex: none; margin: .25rem 0 0; accent-color: var(--orbit-text); }
.checklist input:checked + span { color: var(--orbit-muted); text-decoration: line-through; }

.sources { max-width: 44rem; }
.sources summary { width: fit-content; padding-block: .375rem; font-weight: 500; }
.sources > :not(summary) { margin-top: var(--orbit-copy-gap); }
.sources ul { padding-left: 1.25rem; }
.sources li + li { margin-top: .5rem; }
.actions { display: flex; flex-wrap: wrap; align-items: center; gap: .75rem; margin-top: var(--orbit-heading-gap); }
.button { display: inline-flex; justify-content: center; align-items: center; min-height: 2.75rem; padding: .625rem 1.125rem; border: 1px solid var(--orbit-text); border-radius: .625rem; background: var(--orbit-text); color: var(--orbit-page); font-weight: 500; line-height: 1.4; text-align: center; text-decoration: none; }
.button:hover { background: #333; text-decoration: none; }
.button-secondary { background: var(--orbit-page); color: var(--orbit-text); border-color: var(--orbit-line); }
.button-secondary:hover { background: var(--orbit-tint); }
.button-soft { background: var(--orbit-tint); color: var(--orbit-text); border-color: transparent; }
.button-soft:hover { background: var(--orbit-line); }
.button:disabled { cursor: default; opacity: .5; }

.field { display: grid; gap: .5rem; max-width: 36rem; }
.field + .field { margin-top: 1.25rem; }
.field > label, .choice-group legend { font-weight: 500; }
.control { display: block; width: 100%; min-width: 0; min-height: 2.75rem; padding: .625rem .875rem; border: 1px solid #8c8c8c; border-radius: .625rem; background: var(--orbit-page); color: var(--orbit-text); }
.control::placeholder { color: var(--orbit-muted); opacity: 1; }
textarea.control { resize: vertical; min-height: 7rem; }
.choice-group { min-width: 0; margin: 0; padding: 0; border: 0; }
.choice-group + .choice-group { margin-top: 1.5rem; }
.choice-group legend { padding: 0; margin-bottom: .5rem; }
.choice { display: flex; align-items: center; gap: .75rem; min-height: 2.75rem; padding: .5rem 0; cursor: pointer; }
.choice input { flex: none; width: 1.125rem; height: 1.125rem; margin: 0; accent-color: var(--orbit-text); }
.switch input { appearance: none; position: relative; width: 2.5rem; height: 1.5rem; border: 1px solid var(--orbit-muted); border-radius: 2rem; background: var(--orbit-muted); cursor: pointer; }
.switch input::before { content: ""; position: absolute; width: 1rem; height: 1rem; left: .1875rem; top: .1875rem; border-radius: 50%; background: var(--orbit-page); }
.switch input:checked { background: var(--orbit-text); border-color: var(--orbit-text); }
.switch input:checked::before { transform: translateX(1rem); }
.badge { display: inline-block; padding: .125rem .625rem; border-radius: .375rem; background: var(--orbit-tint); font-size: .875rem; font-weight: 500; }
.notice { margin-top: 1rem; padding: 1rem 1.25rem; border: 1px solid var(--orbit-line); border-radius: .75rem; }
.notice > p { margin-top: .5rem; }

@media (forced-colors: active) {
  .switch input { appearance: auto; }
  .switch input::before { display: none; }
}

@media (max-width: 680px) {
  :root { --orbit-section-gap: 2rem; --orbit-section-inset: 1.5rem; --orbit-heading-gap: 1.25rem; }
  .orbit-page { padding: 1.5rem 1.25rem 4rem; }
  .context { padding-bottom: .75rem; }
  .lead { font-size: 1.0625rem; }
  .content-grid { grid-template-columns: minmax(0, 1fr); }
  .feature-image img { aspect-ratio: 1.65; border-radius: .75rem; }
  .recommendation { padding: 1.25rem; }
  .timeline > li { grid-template-columns: minmax(2.75rem, 1fr) minmax(0, 5fr); gap: .75rem; }
  .timeline > li > div { padding-left: 1rem; }
}

/* Original dot template retained; workshop-specific, restrained editorial layout. */
:root{--orbit-text:#213c36;--orbit-muted:#5d7069;--orbit-line:#dce5df;--orbit-tint:#f3f7f4;font-family:ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Hiragino Kaku Gothic ProN","Noto Sans JP","Yu Gothic",sans-serif;line-height:1.85;scroll-behavior:smooth;scroll-padding-top:90px}
.topbar{position:sticky;top:0;z-index:10;display:flex;align-items:center;gap:24px;justify-content:space-between;padding:13px max(20px,calc((100vw - 1180px)/2));background:#fffffff5;border-bottom:1px solid var(--orbit-line)}.brand{text-decoration:none;font-size:25px;font-weight:750;letter-spacing:-1px;white-space:nowrap}.brand span{font-size:13px;font-weight:500;letter-spacing:0;margin-left:6px}.topbar nav{display:flex;gap:28px;font-size:14px}.topbar nav a{text-decoration:none}.topbar .button{font-size:13px;min-height:36px;padding:7px 12px}.orbit-page{width:min(100%,1180px);padding:28px 36px 100px}.hero{position:relative;overflow:hidden;border-radius:12px;background:#f9f4e6;min-height:590px}.hero>img{width:100%;height:590px;object-fit:cover}.hero-copy{position:absolute;left:4.6%;top:9%;width:53%;padding:10px 0}.eyebrow{font-size:12px;letter-spacing:.15em;color:#53776a;font-weight:700;margin-bottom:18px}.hero h1{font-size:clamp(32px,4.3vw,58px);line-height:1.5;font-weight:750;letter-spacing:.015em;text-wrap:nowrap}.hero-sub{font-size:27px;font-weight:600;margin-top:14px}.hero-meta{font-size:15px;margin-top:17px}.hero-footer{position:absolute;bottom:20px;left:30px;font-size:14px;padding:7px 12px;background:#fffdf4e8;border-radius:6px}.section{margin-top:80px;padding-top:38px}.section h2{font-size:clamp(26px,3vw,36px);font-weight:650;line-height:1.55;letter-spacing:.005em;margin-bottom:22px}.section h3{font-size:20px;line-height:1.6;font-weight:650}.section p{max-width:none}.lead{font-size:19px;line-height:1.9;max-width:840px!important}.section-inner{margin-top:32px}.content-grid{gap:42px}.content-grid p{margin-top:12px}.recommendation{border-radius:10px;background:#f9fbf9;border-color:#d5e5dc;margin-top:26px}.content-grid>.recommendation{margin-top:0}.badge{background:#e8f3eb;color:#355947;font-size:12px;letter-spacing:.03em}.small,.source{font-size:13px;color:var(--orbit-muted);line-height:1.8}.source{margin-top:14px!important}.source a,.faq-list a,.source-list a{color:#326f66}.flow{display:grid;grid-template-columns:repeat(3,1fr);gap:28px;margin:36px 0}.flow>div{border-top:3px solid #98c9b2;padding-top:18px}.flow span{font-size:14px;color:#577f6d}.flow h3{margin:7px 0}.flow p{font-size:15px}.story{padding:24px 0;border-bottom:1px solid var(--orbit-line)}.story h3{margin-top:10px}.story p{margin-top:9px}.examples{margin-top:25px}.examples article{border-top:1px solid var(--orbit-line);padding-top:20px}.number{font-size:13px;color:#688e7c;display:block;margin-bottom:8px}.plain-list{padding-left:1.3em;line-height:2}.demo-tabs{display:flex;gap:10px;flex-wrap:wrap;margin:26px 0 15px}.demo-tabs button{border:1px solid var(--orbit-line);border-radius:6px;background:white;padding:10px 20px;color:var(--orbit-text)}.demo-tabs button[aria-selected=true]{background:#dff0e5;border-color:#89baa1;font-weight:650}#demo-panel{margin-top:0;min-height:235px}#demo-panel .demo-prompt{white-space:pre-wrap;font-size:18px;line-height:1.9;margin:18px 0}#countdown{font-size:23px;font-variant-numeric:tabular-nums;font-weight:600;margin-left:10px}.takeaway{font-size:clamp(23px,3vw,35px);font-weight:550;line-height:1.7;padding:30px 0;margin-top:20px;color:#367260}.field{max-width:none}#my-prompt{white-space:pre-wrap;font-size:16px;min-height:190px}.faq-list details{border-bottom:1px solid var(--orbit-line);padding:17px 0}.faq-list summary{font-size:18px;font-weight:550;padding-right:20px}.faq-list details p{padding:12px 24px 5px;font-size:15px;line-height:1.9}.closing{border-top:1px solid var(--orbit-line);padding-top:25px;margin-top:45px}.source-list{list-style:none;padding:0}.source-list li{padding:14px 0;border-bottom:1px solid var(--orbit-line)}.source-list span{display:block;font-size:13px;color:var(--orbit-muted)}.colophon{font-size:12px;color:var(--orbit-muted);margin-top:40px}.sources{max-width:none;margin-top:24px}#slide-controls{position:fixed;bottom:16px;right:20px;background:white;padding:8px 12px;border:1px solid var(--orbit-line);border-radius:10px;align-items:center;gap:18px;z-index:12}#slide-controls:not([hidden]){display:flex}body.presenting .slide{display:none}body.presenting .slide.active{display:block}body.presenting .section{margin-top:10px;border-top:0;padding-top:20px}body.presenting .orbit-page{padding-bottom:100px}body.presenting .hero{margin-top:10px}body.presenting .topbar nav{visibility:hidden}.checklist input{accent-color:#4f8d70}.button{background:#254d3e;border-color:#254d3e}.button-secondary{background:white;color:var(--orbit-text);border-color:var(--orbit-line)}
@media(max-width:680px){.topbar{padding:10px 15px;gap:8px}.topbar nav{gap:13px;font-size:12px}.topbar nav a:first-child{display:none}.brand{font-size:21px}.brand span{display:none}.topbar .button{font-size:11px;padding:6px 8px}.orbit-page{padding:15px 20px 70px}.hero{min-height:570px;margin-inline:-5px}.hero>img{height:570px;object-fit:cover;object-position:66% center;opacity:.92}.hero-copy{top:20px;left:20px;width:calc(100% - 40px);padding:12px 13px;background:#fff9ecef;border-radius:8px}.hero h1{font-size:31px;line-height:1.45}.hero .eyebrow{font-size:9px;margin-bottom:10px}.hero-sub{font-size:21px;margin-top:8px}.hero-meta{font-size:12px;margin-top:7px}.hero-footer{left:13px;right:13px;bottom:14px;font-size:11px;padding:7px 9px;text-align:center}.section{margin-top:50px;padding-top:27px}.section h2{font-size:26px;line-height:1.65}.section h3{font-size:18px}.lead{font-size:17px}.content-grid{gap:26px}.flow{grid-template-columns:1fr;gap:20px}.flow>div{border-top-width:2px}.flow h3{display:inline;margin-left:15px}.flow p{margin-top:7px}.demo-tabs{gap:6px}.demo-tabs button{padding:8px 11px;font-size:14px}.recommendation{padding:20px}#demo-panel .demo-prompt{font-size:16px}.faq-list summary{font-size:16px}.faq-list details p{padding-inline:12px}.timeline{margin-top:20px}#my-prompt{min-height:130px}.takeaway{font-size:26px}.eyebrow{font-size:10px}.hero-copy .eyebrow{color:#4c6f61}}
@media print{.topbar,#slide-controls,.actions,button{display:none!important}.orbit-page{width:100%;padding:0}.section{break-before:page;margin-top:0;padding:20px 0;border:0}.hero{min-height:480px}.hero>img{height:480px}.slide{display:block!important}.faq-list details{break-inside:avoid}.faq-list details>p{display:block}.sources{display:block}a{color:inherit;text-decoration:none}}

.chapter-image{margin:28px 0 32px}.chapter-image img{width:100%;height:270px;object-fit:cover;border-radius:10px}.chapter-image figcaption{font-size:12px;color:var(--orbit-muted);margin-top:8px}.video-wrap{margin:28px 0}.video-wrap video{display:block;width:100%;max-height:540px;border-radius:10px;background:#fcf9ed}.video-wrap p{margin-top:10px}@media(max-width:680px){.chapter-image img{height:220px}.video-wrap video{max-height:none}}

/* Spring companion introduction */
.hero h1{font-size:clamp(30px,3.6vw,47px);line-height:1.42}.hero-sub{font-size:16px;line-height:1.8;max-width:460px}.hero-copy{top:7%;width:56%}.chat-example{background:#eef6f4;border:1px solid #dce9e2;border-radius:12px;padding:24px;margin-top:28px;max-width:850px}.chat-example>p{max-width:78%;padding:15px 19px;border-radius:12px;margin:12px 0;line-height:1.8}.chat-example span{display:block;font-size:11px;color:#557066;margin-bottom:5px}.chat-from-human{margin-left:auto!important;background:#dcedd0}.chat-from-haru{background:white;border:1px solid #d7e3db}.chat-example>p.small{padding:0;max-width:100%;font-size:11px}@media(max-width:680px){.hero h1{font-size:28px;line-height:1.38}.hero-sub{font-size:13px;line-height:1.7}.hero-copy{top:18px;width:calc(100% - 40px)}.brand{font-size:18px}.chat-example{padding:14px}.chat-example>p{max-width:92%;font-size:14px;padding:12px 14px}.hero-meta{font-size:11px}}

.diagram-image img{height:auto;aspect-ratio:16/9;object-fit:contain;background:#fcf9ef}@media(max-width:680px){.diagram-image img{height:auto;aspect-ratio:16/9}.diagram-image figcaption{font-size:13px;line-height:1.8}}