/* Midnight Indigo page frame (Figma 93:1768) around the light, recessed Console shell. */
:root{
  --page-bg:#171c30; --page-ink:#f6f7fc; --page-muted:#bdc6da; --page-panel:#222a43; --page-edge:#3d4967;
  --page-prompt:#192035; --action:#b5acff; --action-ink:#171c30;
  --app-bg:#f6f8fa; --app-surface:#ffffff; --app-line:#e5e8ef; --app-ink:#171923; --app-muted:#697386;
  --app-accent:#6258f6; --app-accent-soft:#eeedff;
  --go:#11613a; --go-soft:#dff6e8; --no-go:#8f2a20; --no-go-soft:#fff0ed; --tour:#8c2948;
  --sans:"Inter",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
}

*{box-sizing:border-box;margin:0;padding:0}
body{background:var(--page-bg);color:var(--page-ink);font:16px/1.5 var(--sans);font-weight:400}
a{color:var(--action);text-decoration:none}
a:hover{text-decoration:underline}
:focus-visible{outline:2px solid var(--action);outline-offset:2px}
[hidden]{display:none !important}
.visually-hidden{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.skip-link{position:fixed;left:16px;top:12px;z-index:10;transform:translateY(calc(-100% - 20px));padding:8px 12px;border-radius:6px;background:var(--page-ink);color:var(--page-bg)}
.skip-link:focus{transform:none}
main:focus{outline:none}
.mark{width:26px;height:26px;flex:none}
.small{font-size:12px;line-height:18px;color:var(--page-muted)}
.muted{color:var(--page-muted)}

.button{display:inline-flex;align-items:center;justify-content:center;min-height:40px;padding:8px 16px;border:0;border-radius:8px;
  background:var(--action);color:var(--action-ink);font:400 16px/1.2 var(--sans);cursor:pointer;text-decoration:none}
.button:hover{text-decoration:none;filter:brightness(1.05)}
.text-button{border:0;background:none;font:500 13px/20px var(--sans);color:var(--page-muted);cursor:pointer;padding:0}

/* Site masthead */
.site-header{position:sticky;top:0;z-index:8;display:flex;align-items:center;gap:20px;min-height:92px;padding:16px 32px;background:var(--page-bg)}
.brand{display:flex;align-items:center;gap:10px;color:var(--page-ink);font:600 22px/33px var(--sans)}
.brand:hover{text-decoration:none}
.brand .mark{width:36px;height:36px}
.tagline{font:600 14px/21px var(--sans)}
.badge{border:1px solid var(--page-edge);border-radius:5px;padding:5px 10px;background:var(--page-panel);font:600 10px/15px var(--sans);letter-spacing:.02em;text-transform:uppercase;color:var(--page-muted)}
.site-nav{margin-left:auto;display:flex;align-items:center;gap:16px;font:500 13px/20px var(--sans)}
.site-nav .quiet{color:var(--page-muted)}
.site-nav .signin{color:var(--page-ink)}
.site-nav .prompt-trigger{border:1px solid var(--page-edge);background:transparent;color:var(--action);font-size:13px;white-space:nowrap}
.site-nav .connect{font-size:14px;white-space:nowrap}

/* Hero */
.hero{padding:28px 64px 32px}
.hero-copy{display:flex;flex-direction:column;align-items:flex-start;gap:16px;max-width:850px}
.hero h1{font:600 38px/46px var(--sans)}
.lede{font-size:18px;line-height:28px;max-width:72ch}
.practice{font-size:14px;line-height:21px;color:var(--page-muted)}

.prompt-card{margin:auto;width:min(560px,calc(100% - 32px));max-height:calc(100% - 32px);overflow-y:auto;background:var(--page-panel);color:var(--page-ink);border:1px solid var(--page-edge);border-radius:12px;padding:24px}
.prompt-card[open]{display:flex;flex-direction:column;gap:14px}
.prompt-card::backdrop{background:rgba(8,10,20,.75)}
.prompt-heading{display:flex;align-items:center;justify-content:space-between;gap:16px}
.prompt-card h2{font:600 20px/30px var(--sans)}
.prompt-card .muted{font-size:14px;line-height:21px}
.prompt-card .copy{width:100%}
.prompt{padding:16px;border:1px solid var(--page-edge);border-radius:8px;background:var(--page-prompt);font-size:14px;line-height:21px;user-select:all;overflow-wrap:anywhere}
.copy-status{min-height:18px;margin:-8px 0 -6px;font-size:12px;line-height:18px}
.copy-status[data-state="failed"]{color:#ffb4b4}
.card-links{display:flex;gap:18px;font:500 12px/18px var(--sans)}
.support{display:grid;gap:12px;max-width:900px;padding:24px 64px 48px}
.support h2{font:600 22px/30px var(--sans)}
.support p{font-size:14px;line-height:22px;color:var(--page-muted);max-width:70ch}
.support nav{display:flex;flex-wrap:wrap;gap:12px 24px;font-size:14px}

/* Sample enclosure, demo controls and optional explanations outside the app */
.sample{padding:0 32px 20px}
.sample-bar{position:relative;display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:28px}
.eyebrow{font:600 12px/18px var(--sans);text-transform:uppercase;color:var(--page-muted)}
.teach-controls{display:flex;align-items:center;gap:16px}
.teach-buttons{display:flex;align-items:center;gap:8px}
.teach{display:inline-flex;align-items:center;gap:6px;padding:3px 10px 3px 4px;border:1px solid var(--page-edge);border-radius:999px;background:var(--page-panel);color:var(--page-ink);font:600 12px/18px var(--sans);cursor:pointer}
.teach[aria-expanded="true"]{border-color:var(--action)}
.dot{display:inline-flex;align-items:center;justify-content:center;min-width:20px;height:20px;padding:0 6px;border-radius:999px;background:var(--tour);color:#fff;font:600 12px/1 var(--sans)}
.teach-panel{position:absolute;z-index:5;right:0;top:calc(100% + 8px);width:340px;display:flex;flex-direction:column;align-items:flex-start;gap:8px;padding:16px;
  border:1px solid var(--page-edge);border-radius:10px;background:var(--page-panel);color:var(--page-ink);font-size:14px;line-height:21px;box-shadow:0 12px 28px rgba(8,10,20,.45)}
.teach-panel:focus{outline:none}
.teach-title{display:flex;align-items:center;gap:8px;font-weight:600}
.teach-panel .text-button{color:var(--action)}
.identity{margin-top:12px;font-size:11px;line-height:17px;color:var(--page-muted)}

/* Recessed light Console shell */
.app{position:relative;margin-top:12px;display:grid;grid-template-columns:208px minmax(0,1fr);min-height:820px;
  background:var(--app-bg);color:var(--app-ink);border:1px solid var(--page-edge);border-radius:12px;overflow:hidden;
  box-shadow:0 1px 0 rgba(255,255,255,.9)}
.app::before,.app::after{content:"";position:absolute;left:0;top:0;pointer-events:none;z-index:1}
.app::before{right:0;height:24px;border-top:1px solid rgba(122,130,148,.65);background:linear-gradient(rgba(33,41,59,.24),rgba(33,41,59,.09) 40%,rgba(33,41,59,0))}
.app::after{bottom:0;width:16px;background:linear-gradient(90deg,rgba(33,41,59,.13),rgba(33,41,59,0))}
.app a{color:var(--app-accent)}
.app :focus-visible{outline-color:var(--app-accent)}
.app .small,.app .muted{color:var(--app-muted)}
.app .button{min-height:40px;background:var(--app-accent);color:#fff;font:500 13px/20px var(--sans)}
.app .button.ghost{background:var(--app-surface);color:var(--app-accent);border:1px solid var(--app-line)}
.app-side{display:flex;flex-direction:column;gap:24px;padding:16px;background:var(--app-surface)}
.app-brand{display:flex;align-items:center;gap:7px;font:600 15.9px/24px var(--sans);color:var(--app-ink)}
.app-brand .mark{width:26px;height:26px}
.workspace{position:relative}
.workspace-button{width:100%;display:flex;flex-direction:column;gap:4px;text-align:left;border:1px solid var(--app-line);border-radius:8px;background:var(--app-bg);padding:12px;cursor:pointer;font:inherit;color:var(--app-ink)}
.workspace-button .label,.mobile-workspace .label{display:block;font:500 12px/18px var(--sans);text-transform:uppercase;color:var(--app-muted)}
.workspace-button .value{display:block;font:600 14px/21px var(--sans)}
.workspace-menu{position:absolute;z-index:2;left:0;right:0;top:calc(100% + 6px);padding:10px 12px;border:1px solid var(--app-line);border-radius:8px;background:var(--app-surface);box-shadow:0 8px 20px rgba(20,22,40,.12);font-size:14px}
.side-nav,.side-foot{display:flex;flex-direction:column;gap:8px}
.side-foot{margin-top:auto}
.side-nav a,.side-foot a,.side-foot .inert{display:flex;align-items:center;gap:8px;min-height:40px;padding:8px;border-radius:8px;color:var(--app-ink) !important;font-size:14px;line-height:21px}
.side-nav a[aria-current="page"]{background:var(--app-accent-soft);color:var(--app-accent) !important}
.side-foot .side-signin{border:1px solid var(--app-line)}
.nav-ico{width:16px;height:16px;flex:none}

.app-main{display:flex;flex-direction:column;min-width:0;background:var(--app-bg)}
.app-top{display:flex;align-items:center;gap:24px;min-height:72px;padding:16px 32px;background:var(--app-surface)}
.app-mobile-head,.mobile-nav{display:none}
.search-link{flex:0 1 420px;height:40px;display:flex;align-items:center;justify-content:space-between;gap:12px;padding:0 12px 0 16px;border:1px solid var(--app-line);border-radius:999px;background:var(--app-bg);color:var(--app-muted) !important;font-size:13px}
.search-link svg{width:18px;height:18px;color:var(--app-ink)}
.top-guide{margin-left:auto;font:500 13px/20px var(--sans)}
.top-guide[aria-current="page"]{font-weight:600}
.search{position:relative;margin-top:22px;max-width:520px}
.search input{width:100%;height:40px;padding:0 16px;border:1px solid var(--app-line);border-radius:999px;background:var(--app-surface);font:14px var(--sans);color:var(--app-ink)}
.search-scope{margin-top:4px;font-size:12px;color:var(--app-muted)}
.search-results{margin-top:8px;list-style:none;padding:6px;border:1px solid var(--app-line);border-radius:8px;background:var(--app-surface);box-shadow:0 8px 20px rgba(20,22,40,.12);font-size:14px}
.search-results li{padding:6px 8px}
.checklist{list-style:none;font-size:14px}
.checklist li{display:flex;align-items:center;gap:10px;padding:4px 0}

.app-view{padding:24px 32px 32px;font-size:13px;line-height:20px}
.app-view > section > * + *{margin-top:24px}
.app-view > section > .back + h1,.app-view > section > h1 + .sub{margin-top:6px}
.app-view h1{font:600 24px/36px var(--sans)}
.app-view h1:focus{outline:none}
.app-view section[data-view="home"] h1{font-size:26px;line-height:39px}
.app-view h2{font:600 16px/24px var(--sans)}
.app-view .sub{font-size:13px;line-height:20px;color:var(--app-muted)}
.back{display:inline-block;font:500 12px/18px var(--sans)}
.tabs{display:flex;gap:8px;overflow-x:auto}
.tabs a{flex:none;min-height:40px;display:flex;align-items:center;padding:8px 12px;border-radius:8px;color:var(--app-ink) !important;font-size:14px}
.tabs a[aria-current="page"]{background:var(--app-accent-soft);color:var(--app-accent) !important}
.panel{position:relative;padding:24px;border:1px solid var(--app-line);border-radius:8px;background:var(--app-surface)}
.panel > * + *{margin-top:18px}
.unavailable{padding:12px 14px;border:1px dashed var(--app-line);border-radius:6px;background:var(--app-bg);color:var(--app-muted);font-size:14px}
.recorded-fact{min-width:0}
.panel .recorded-fact > * + *{margin-top:12px}
.recorded-fact > a{display:inline-block}
.actions{display:flex;flex-wrap:wrap;align-items:center;gap:12px}
.compare{font:500 13px/20px var(--sans)}
.strong-link{font-weight:600}

/* Status pills and gate tones */
.pill{display:inline-block;padding:4px 10px;border-radius:6px;font:500 12px/18px var(--sans);white-space:nowrap}
.pill::first-letter,.evidence-tag::first-letter{text-transform:uppercase}
.pill-go{background:var(--go-soft);color:var(--go)}
.pill-no-go{background:var(--no-go-soft);color:var(--no-go)}
.gate-line{font-size:13px;line-height:20px}
.gate-go{color:var(--go)}
.gate-no-go{color:var(--no-go)}

/* A four-part Store timeline. */
.walkthrough{list-style:none}
.walkthrough-step{position:relative;display:grid;grid-template-columns:190px minmax(0,1fr);gap:24px;padding:0 0 28px}
.walkthrough-step + .walkthrough-step{padding-top:8px}
.walkthrough-step:not(:last-child)::before{content:"";position:absolute;left:15px;top:36px;bottom:0;border-left:1px solid var(--app-line)}
.step-heading{display:flex;align-items:flex-start;gap:12px}
.step-heading h2{padding-top:3px}
.step-number{display:flex;align-items:center;justify-content:center;flex:none;width:32px;height:32px;border-radius:50%;background:var(--app-accent-soft);color:var(--app-accent);font-size:14px;font-weight:600}
.step-body{min-width:0}
.step-explanation{max-width:74ch;color:var(--app-muted);margin-bottom:12px}
.step-time{font-weight:600;margin-bottom:12px}
.step-summary{margin-bottom:12px}
.observed-prices{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
.observed-price{display:flex;flex-direction:column;gap:4px;border-left:2px solid var(--app-line);padding-left:12px}
.walkthrough-result > * + *,.subsequent-run > * + *{margin-top:8px}
.subsequent-run{margin-top:20px;padding-top:16px;border-top:1px solid var(--app-line)}
.subsequent-run h3{font-size:14px;font-weight:600}
.walkthrough-step:last-child{padding-bottom:0}

/* Store overview */
.card-title{font:600 18px/27px var(--sans)}
.stats{display:grid;grid-template-columns:repeat(3,minmax(0,270px));gap:48px}
.stat strong{display:block;font:600 24px/38px var(--sans)}
.stat span{font-size:12px;line-height:18px;color:var(--app-muted)}
.evidence-list{display:flex;flex-direction:column;gap:12px}
.evidence-row{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:12px 16px;border-radius:6px;background:var(--app-bg)}
.evidence-row div{display:flex;flex-direction:column;min-width:0;overflow-wrap:anywhere}
.evidence-row strong{font-weight:600}
.evidence-tag{display:inline-block;flex:none;font:500 12px/18px var(--sans);color:var(--go)}
.evidence-tag.rejected{color:var(--no-go)}
.change-link{border:1px solid transparent;color:var(--app-ink) !important}
.change-link:hover{border-color:var(--app-accent);background:var(--app-accent-soft);text-decoration:none}
.change-link .evidence-tag{color:var(--app-accent)}
.change-unattributed .evidence-tag{flex:0 1 220px;color:var(--app-muted)}
.step-body .evidence-list{gap:8px}
.step-body .evidence-row{padding:10px 12px;font-size:12px;line-height:18px}
.step-body .evidence-tag{font-size:11px}

/* The operation is an evidence document, with no live editor or fabricated response body. */
[data-operation] > * + *{margin-top:24px}
.operation-identity .selected-change{font-size:18px;line-height:27px;font-weight:600}
.recorded-code{max-width:100%;padding:16px;border-radius:6px;background:var(--app-bg);font:12px/19px ui-monospace,SFMono-Regular,Consolas,monospace;white-space:pre-wrap;overflow-wrap:anywhere}
[data-operation] h3{font-size:13px;font-weight:600}

/* Runs */
.run-list{display:flex;flex-direction:column;gap:24px}
.run-summary > * + *{margin-top:12px}
.run-summary .actions{margin-top:12px}
.app .button.wide{flex:1 1 auto;font-weight:400}

/* Receipt Gate cards */
.gate-card{display:flex;flex-direction:column;gap:12px;padding:24px;border:1px solid var(--app-line);border-radius:8px;background:var(--app-surface);font-size:14px;line-height:21px}
.gate-card.unavailable{padding:12px 14px;border-style:dashed}
.gate-card[data-gate="go"]{border-color:var(--go-soft);background:var(--go-soft);color:var(--go)}
.gate-card[data-gate="no-go"]{background:var(--no-go-soft);color:var(--app-ink)}
.gate-card[data-gate="no-go"] .gate-title{color:var(--no-go)}
.app-view .gate-title{font:600 22px/33px var(--sans)}
.gate-card .small{color:inherit}
.gate-meta{font-size:12px;line-height:18px}

/* Generic recorded fact rows (Stores, Console, Receipt Gate, Public receipt, provenance) */
.fact-list{display:grid}
.fact-row{display:grid;grid-template-columns:minmax(140px,30%) minmax(0,1fr);gap:16px;padding:10px 0;border-top:1px solid var(--app-line);align-items:start}
.fact-row:first-child{border-top:0;padding-top:0}
.fact-row:last-child{padding-bottom:0}
.fact-label{color:var(--app-muted)}
.fact-value{font-weight:600;overflow-wrap:anywhere}
.fact-link{overflow-wrap:anywhere}

@media (max-width:1100px){
  .site-header .tagline,.site-header .badge{display:none}
  .hero{padding:24px 32px}
  .walkthrough-step{grid-template-columns:155px minmax(0,1fr);gap:16px}
  .step-body .evidence-row{flex-direction:column;align-items:flex-start;gap:4px}
  .support{padding-left:32px;padding-right:32px}
  .stats{gap:24px}
}
@media (max-width:760px){
  .site-header{flex-wrap:wrap;min-height:0;gap:12px;padding:12px 16px}
  .tagline,.site-nav .quiet{display:none}
  .brand{font-size:22px}
  .site-nav{flex-wrap:wrap;gap:8px;font-size:13px}
  .site-nav .signin{margin-left:auto}
  .site-nav .prompt-trigger,.site-nav .connect{min-height:36px;padding:8px 12px;font-size:12px}
  .hero{padding:20px 16px}
  .hero h1{font-size:28px;line-height:36px}
  .lede{font-size:16px;line-height:24px}
  .prompt-card{padding:20px 16px}
  .card-links{flex-direction:column;gap:16px}
  .support{padding:20px 16px 32px}
  .support h2{font-size:20px;line-height:28px}
  .support nav{flex-direction:column;gap:12px}
  .sample{padding:16px}
  .sample-bar{flex-direction:column;align-items:flex-start;gap:12px}
  .eyebrow{font-size:10px;line-height:15px}
  .teach-controls{gap:10px;flex-wrap:wrap}
  .teach-panel{left:0;right:0;width:auto}
  .app{grid-template-columns:1fr;min-height:0}
  .app::after{width:12px}
  .app-side,.search-link,.top-guide{display:none}
  .app-top{flex-direction:column;align-items:stretch;gap:12px;min-height:0;padding:16px}
  .app-mobile-head{display:flex;justify-content:space-between;align-items:center;gap:12px}
  .mobile-workspace{width:120px}
  .mobile-workspace .label{font-size:10px;line-height:15px}
  .mobile-workspace b{display:block;font-size:14px;line-height:21px}
  .mobile-nav{display:flex;gap:16px;overflow-x:auto;font:500 11px/17px var(--sans)}
  .mobile-nav a{flex:none}
  .mobile-nav a[aria-current="page"]{font-weight:600;text-decoration:underline}
  .app-view{padding:16px}
  .app-view > section > * + *{margin-top:20px}
  .app-view h1{font-size:24px;line-height:36px}
  .panel{padding:20px 16px}
  .walkthrough-step{grid-template-columns:1fr;gap:12px;padding-bottom:24px}
  .walkthrough-step:not(:last-child)::before{display:none}
  .step-heading h2{font-size:18px;line-height:26px}
  .step-body{padding-left:0}
  .step-body .evidence-row{font-size:13px;line-height:20px}
  .observed-prices{grid-template-columns:1fr}
  .stats{grid-template-columns:1fr;gap:12px}
  .evidence-row{flex-direction:column;align-items:flex-start;gap:6px}
  .fact-row{grid-template-columns:1fr;gap:2px}
}