:root{color-scheme:light;--bg:#f8faf9;--surface:#fff;--ink:#132722;--muted:#4e655e;--accent:#17664e;--soft:#eaf4ef;--line:#d8e5df;font-family:'Plus Jakarta Sans',sans-serif;font-synthesis:none}
*{box-sizing:border-box}html{scroll-padding-top:30px}body{margin:0;color:var(--ink);background:var(--bg);font-size:16px;line-height:1.75}a{color:var(--accent);text-underline-offset:4px}a:hover{text-decoration-thickness:2px}button,input,select{font:inherit}button{cursor:pointer}button:disabled{cursor:default;opacity:.55}button:focus-visible,a:focus-visible,input:focus-visible,summary:focus-visible,[tabindex]:focus-visible{outline:3px solid var(--accent);outline-offset:4px}[hidden]{display:none!important}
.guide-nav,.guide-footer{width:min(1200px,calc(100% - 64px));margin:auto;display:flex;align-items:center;justify-content:space-between;gap:24px}.guide-nav{min-height:98px;border-bottom:1px solid var(--line)}.guide-brand{font-size:22px;font-weight:750;letter-spacing:-1px;text-decoration:none;color:var(--ink);white-space:nowrap}.guide-brand span{color:var(--accent)}.guide-nav nav,.guide-footer nav{display:flex;align-items:center;gap:28px;font-size:14px}.guide-nav nav>a:not(.guide-button){color:var(--ink);text-decoration:none}.guide-nav a[aria-current=page]{border-bottom:2px solid var(--accent)}.guide-button,.component-actions button{display:inline-flex;align-items:center;justify-content:center;border:1px solid var(--accent);border-radius:6px;background:var(--accent);color:#fff;padding:10px 18px;min-height:44px;font-size:13px;font-weight:650;text-decoration:none}.guide-button:hover,.component-actions button:hover{background:#104b3a}.guide-skip{position:fixed;top:8px;left:8px;transform:translateY(-180%);padding:8px 16px;background:var(--ink);color:#fff;z-index:10}.guide-skip:focus{transform:none}
.guide-footer{border-top:1px solid var(--line);padding-block:36px;margin-top:110px;flex-wrap:wrap;font-size:12px;color:var(--muted)}.guide-footer p{max-width:370px}.guide-footer a{text-decoration:none}.preview-banner{text-align:center;padding:10px 20px;background:var(--soft);font-size:12px}.guide-breadcrumbs{font-size:12px;color:var(--muted);margin-bottom:52px}.guide-breadcrumbs ol{list-style:none;display:flex;gap:12px;flex-wrap:wrap;margin:0;padding:0}.guide-breadcrumbs li+li::before{content:'/';margin-right:12px;color:#70877e}.guide-breadcrumbs a{color:inherit;text-decoration:none}
h1,h2,h3{line-height:1.2;letter-spacing:-.035em}h1{font-size:clamp(36px,4.6vw,64px);font-weight:650;margin:0;max-width:940px}h2{font-size:clamp(25px,2.7vw,34px);font-weight:650}h3{font-size:21px;font-weight:650}.guide-kicker{font-family:'JetBrains Mono',monospace;text-transform:uppercase;letter-spacing:.1em;font-size:11px;color:var(--accent);font-weight:500;margin:0 0 18px}.guide-lead{font-size:clamp(17px,2vw,20px);color:var(--muted);max-width:740px;margin:24px 0 0;line-height:1.7}.guide-index,.guide-article-wrap{width:min(1140px,calc(100% - 64px));margin:36px auto 0}.guide-index{max-width:1040px}.guide-index h1{max-width:760px}.guide-index>p:not(.guide-kicker):not(.guide-lead){max-width:720px;color:var(--muted)}.platform-links{display:flex;gap:16px;flex-wrap:wrap;margin:34px 0 0}.platform-links a{font-size:14px;font-weight:600;text-decoration:none;border-bottom:1px solid var(--line);padding-bottom:6px}.platform-links span{margin-left:20px}.guide-list{margin-top:56px}.guide-summary{padding:34px 0;border-top:1px solid var(--line);display:grid;grid-template-columns:220px 1fr;column-gap:40px}.guide-summary-label{grid-row:1/4;font-size:12px;font-weight:600;color:var(--accent)}.guide-summary-label span{display:block;color:var(--muted);font-weight:400}.guide-summary h2{font-size:29px;margin:0;max-width:640px}.guide-summary h2 a{text-decoration:none;color:var(--ink)}.guide-summary p{color:var(--muted);max-width:650px;margin:16px 0 20px}.guide-read{font-size:13px;font-weight:650;text-decoration:none}.guide-read span{margin-left:16px}
.guide-hero{padding-bottom:48px;border-bottom:1px solid var(--line)}.guide-byline{display:flex;gap:10px 24px;flex-wrap:wrap;margin-top:28px;color:var(--muted);font-size:11px}.guide-byline>span:first-child{color:var(--ink);font-weight:650}.guide-reading-grid{display:grid;grid-template-columns:220px minmax(0,740px);gap:70px;margin-top:48px}.guide-toc nav{position:sticky;top:28px}.guide-toc p{font-size:11px;text-transform:uppercase;letter-spacing:.08em;font-weight:650;margin:0 0 18px}.guide-toc ol{list-style:none;padding:0;margin:0;border-left:1px solid var(--line)}.guide-toc li{margin:0}.guide-toc a{display:block;padding:7px 0 7px 18px;font-size:12px;color:var(--muted);text-decoration:none;line-height:1.6}.guide-toc a:hover{color:var(--accent);border-left:2px solid var(--accent);margin-left:-1px;padding-left:17px}
.guide-prose{min-width:0;overflow-wrap:anywhere}.guide-prose>p:first-child{margin-top:0}.guide-prose p{margin:0 0 23px}.guide-prose h2{margin:60px 0 23px;scroll-margin-top:30px}.guide-prose h3{margin:32px 0 16px}.guide-prose ul,.guide-prose ol{padding-left:24px;margin:20px 0 28px}.guide-prose li{padding-left:4px;margin:10px 0}.guide-prose li>p{margin:0}.guide-prose strong{font-weight:700}.guide-prose code{font-family:'JetBrains Mono',monospace;font-size:.85em;background:var(--soft);border-radius:3px;padding:2px 5px}.guide-prose pre{white-space:pre-wrap;overflow-wrap:anywhere;font-family:'JetBrains Mono',monospace;font-size:13px;line-height:1.85;margin:20px 0}.guide-prose pre code{background:none;padding:0}.guide-prose blockquote{margin:28px 0;border-left:3px solid var(--accent);padding-left:24px;color:var(--muted)}
.guide-component{margin:34px 0;overflow-wrap:anywhere}.guide-component .component-title{font-size:20px;margin:0 0 16px}.guide-component p:last-child{margin-bottom:0}.component-note{font-size:12px;color:var(--muted);line-height:1.75}.component-note strong{color:var(--ink)}.component-actions{display:flex;gap:12px;align-items:center;flex-wrap:wrap;margin-top:22px}.component-actions span{font-size:12px;color:var(--muted);flex:1;min-width:140px}.component-actions button{background:var(--surface);color:var(--accent);border-color:var(--line);padding:9px 14px;font-size:12px}.component-actions button:hover{background:var(--soft)}.component-actions button[data-play],.component-actions button[data-copy]{background:var(--accent);color:#fff;border-color:var(--accent)}
.prompt-box{background:var(--soft);border:1px solid #bbded1;border-radius:8px;padding:28px 30px}.prompt-box pre{padding:22px 0;border-block:1px solid #c9ded3}.verification-note{border-left:3px solid var(--accent);padding:6px 0 6px 24px}.verification-note .guide-kicker{margin-bottom:10px}.verification-note p{font-size:14px}.verification-note .component-title{font-size:18px;margin-bottom:12px}.note-example,.note-proposed,.note-unavailable{border-color:#7a928b}.note-example .guide-kicker,.note-proposed .guide-kicker,.note-unavailable .guide-kicker{color:var(--muted)}
.conversation-demo{background:var(--surface);border:1px solid var(--line);border-radius:10px;padding:28px 30px}.conversation-demo>.component-title{margin-bottom:10px}.conversation-stage{border-top:1px solid var(--line);padding-top:16px;min-height:170px;display:flex;flex-direction:column;gap:14px}.conversation-stage:empty::before{content:'Play the example, or move through it one step at a time.';font-size:14px;color:var(--muted);padding:28px 10px}.conversation-demo .message{list-style:none;margin:0;padding:17px 20px;font-size:14px;max-width:94%;border:1px solid var(--line);border-radius:8px}.conversation-demo .message p{margin:0;white-space:pre-wrap}.conversation-demo .message .message-speaker{font-family:'JetBrains Mono',monospace;font-size:10px;text-transform:uppercase;letter-spacing:.05em;margin-bottom:8px;color:var(--muted)}.conversation-demo .message-merchant{align-self:flex-end;background:var(--soft);border-color:#d0e3d9}.conversation-demo .message-assistant{align-self:flex-start;background:var(--bg)}.conversation-demo details{margin-top:24px;font-size:13px;border-top:1px solid var(--line);padding-top:18px}.conversation-demo summary{cursor:pointer;color:var(--accent);font-weight:600}.conversation-demo .conversation-transcript{padding:0;display:flex;flex-direction:column;gap:14px;margin-bottom:0}.demo-message{animation:message-appear .2s ease-out}@keyframes message-appear{from{opacity:0;transform:translateY(5px)}to{opacity:1;transform:none}}
.mermaid-diagram{margin-inline:0}.mermaid-diagram img{display:block;width:100%;height:auto;max-height:500px;object-fit:contain;background:var(--surface);border:1px solid var(--line);padding:20px;border-radius:8px}.mermaid-diagram figcaption,.data-table figcaption{font-size:12px;color:var(--muted);margin-top:13px;line-height:1.7}.mermaid-diagram figcaption strong{color:var(--ink)}.table-scroll{overflow-x:auto;max-width:100%;margin:28px 0;overscroll-behavior-x:contain}.data-table .table-scroll{margin-bottom:8px}.guide-prose table{border-collapse:collapse;width:100%;font-size:13px;min-width:400px}.guide-prose caption{text-align:left;font-size:16px;font-weight:650;margin-bottom:18px;color:var(--ink)}.guide-prose th,.guide-prose td{padding:15px 16px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}.guide-prose thead th{background:var(--soft);font-size:12px;font-weight:650}.guide-prose tbody th{font-weight:600}.evidence-ref{font-size:.8em;white-space:nowrap}.guide-sources{margin-top:60px;border-top:1px solid var(--line)}.guide-sources li{font-size:13px;padding-bottom:16px}.guide-sources li p{font-size:12px;color:var(--muted);margin:7px 0}.statistic{border-block:1px solid var(--line);padding:26px 0}.statistic>p{font-size:24px;font-weight:600;line-height:1.4;letter-spacing:-.03em}.statistic>a{font-size:12px}
.calculator{border:1px solid var(--line);padding:28px 30px;border-radius:8px;background:var(--surface)}.calculator>p{font-size:14px}.calculator-inputs{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin:24px 0}.calculator label{font-size:12px;font-weight:600}.calculator input{display:block;width:100%;margin-top:9px;min-height:46px;border:1px solid var(--line);background:var(--bg);border-radius:5px;padding:10px 13px;color:var(--ink)}.calculator input[aria-invalid=true]{border-color:#a34325}.calculator output{display:block;font-size:21px;line-height:1.5;font-weight:650;margin-bottom:22px;color:var(--accent)}.action-checklist{padding:28px 0;border-block:1px solid var(--line)}.action-checklist ul{list-style:none;margin:0;padding:0}.action-checklist li{padding:8px 0;margin:0}.action-checklist label{display:flex;gap:12px;align-items:flex-start;cursor:pointer;font-size:14px}.action-checklist input{accent-color:var(--accent);width:18px;height:18px;flex-shrink:0;margin:4px 0 0}.action-checklist input:checked+span{color:var(--muted);text-decoration:line-through}.guide-next{margin-top:60px;border-top:1px solid var(--line);padding-top:32px}.guide-next h2{font-size:28px;margin:0 0 18px}.guide-next p{font-size:14px}
@media(min-width:1100px){.guide-index{padding-top:16px}.guide-index>.guide-kicker{margin-top:72px}}
@media(max-width:900px){.guide-reading-grid{grid-template-columns:minmax(0,1fr);gap:28px;max-width:740px;margin-inline:auto}.guide-toc nav{position:static}.guide-toc ol{display:flex;flex-wrap:wrap;gap:4px 18px;border:0}.guide-toc a{padding:4px 0}.guide-toc a:hover{padding-left:0;margin:0;border:0}.guide-toc{border-bottom:1px solid var(--line);padding-bottom:24px}.guide-summary{grid-template-columns:160px 1fr;gap:20px}.guide-nav nav{gap:18px}}
@media(max-width:600px){.guide-nav,.guide-footer,.guide-index,.guide-article-wrap{width:calc(100% - 36px)}.guide-nav{min-height:82px;gap:12px;flex-wrap:wrap;padding-block:16px}.guide-brand{font-size:19px}.guide-nav nav{gap:16px;font-size:12px}.guide-nav .guide-button{padding:8px 11px;font-size:11px;min-height:40px}.guide-breadcrumbs{margin-bottom:34px}.guide-article-wrap,.guide-index{margin-top:25px}h1{font-size:36px;line-height:1.16}.guide-hero{padding-bottom:30px}.guide-lead{font-size:17px}.guide-byline{gap:8px 16px}.guide-reading-grid{margin-top:28px}.guide-summary{display:block}.guide-summary-label{margin-bottom:16px}.guide-summary-label span{display:inline}.guide-summary h2{font-size:25px}.guide-component{margin-block:28px}.prompt-box,.conversation-demo,.calculator{padding:22px 18px}.conversation-demo .message{padding:14px;max-width:98%;font-size:13px}.component-actions{gap:8px}.component-actions span{flex-basis:100%;margin-top:6px}.calculator-inputs{grid-template-columns:1fr}.guide-footer{margin-top:65px;gap:16px}.guide-footer nav{gap:20px}.guide-prose h2{margin-top:42px}.mermaid-diagram img{padding:10px}.guide-prose{font-size:15px;line-height:1.8}}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{animation:none!important;transition:none!important;scroll-behavior:auto!important}}