/* Freight Fieldnotes — "Bill of lading" design. Light and dark themes share one layout. */
@font-face{font-family:'Instrument Sans';src:url('/fonts/instrument-sans.woff2') format('woff2');font-weight:400 700;font-style:normal;font-display:swap}
@font-face{font-family:'IBM Plex Mono';src:url('/fonts/ibm-plex-mono-400.woff2') format('woff2');font-weight:400;font-style:normal;font-display:swap}
@font-face{font-family:'IBM Plex Mono';src:url('/fonts/ibm-plex-mono-500.woff2') format('woff2');font-weight:500;font-style:normal;font-display:swap}
@font-face{font-family:'IBM Plex Mono';src:url('/fonts/ibm-plex-mono-600.woff2') format('woff2');font-weight:600;font-style:normal;font-display:swap}

:root{
  --bg:#ffffff;--ink:#0e1530;--text:#3d4562;--muted:#5a6280;--faint:#6a7290;
  --rule:#d9dce6;--rule-strong:#0e1530;--band:#f3f5fb;--field:#ffffff;--field-border:#c5cad9;
  --accent:#1f3fd1;--accent-wash:#eef1fd;--inverse-bg:#0e1530;--inverse-ink:#ffffff;--pre:#f3f5fb;
  --bar-bg:#0d0d0d;--bar-ink:#f2f2f2;--bar-text:#a6a6a6;--bar-muted:#8c8c8c;--bar-rule:#262626;--bar-accent:#8ca0ff;
  --sans:'Instrument Sans',-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;
  --mono:'IBM Plex Mono',ui-monospace,SFMono-Regular,Menlo,monospace;
  --gutter:64px;--bar-h:48px;
  color-scheme:light;color:var(--ink);background:var(--bg);font-family:var(--sans);font-size:16px;line-height:1.55;
}
:root[data-theme=dark]{
  --bg:#000000;--ink:#f2f2f2;--text:#a6a6a6;--muted:#8c8c8c;--faint:#808080;
  --rule:#262626;--rule-strong:#f2f2f2;--band:#0d0d0d;--field:#141414;--field-border:#333333;
  --accent:#8ca0ff;--accent-wash:#11131c;--inverse-bg:#f2f2f2;--inverse-ink:#000000;--pre:#111111;
  color-scheme:dark;
}
@media (prefers-color-scheme:dark){:root:not([data-theme=light]){
  --bg:#000000;--ink:#f2f2f2;--text:#a6a6a6;--muted:#8c8c8c;--faint:#808080;
  --rule:#262626;--rule-strong:#f2f2f2;--band:#0d0d0d;--field:#141414;--field-border:#333333;
  --accent:#8ca0ff;--accent-wash:#11131c;--inverse-bg:#f2f2f2;--inverse-ink:#000000;--pre:#111111;
  color-scheme:dark;
}}

*{box-sizing:border-box}
body{margin:0;background:var(--bg);padding-bottom:var(--bar-h)}
:root[data-sponsor-bar=hidden] body{padding-bottom:0}
a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer}button:disabled,input:disabled,select:disabled{cursor:wait;opacity:.6}
:focus-visible{outline:3px solid var(--accent);outline-offset:3px}
[hidden]{display:none!important}
h1,h2,h3,h4{color:var(--ink);line-height:1.2;margin:0 0 12px}
p{margin:0 0 16px}
svg{fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.container{max-width:1440px;margin:0 auto;padding:0 var(--gutter)}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.skip{position:absolute;left:-9999px;top:8px;z-index:20;background:var(--inverse-bg);color:var(--inverse-ink);padding:8px 14px}
.skip:focus{left:16px}
.eyebrow,.small-label,.mono-link,.edition,.cell-label,.ledger-head{font-family:var(--mono);font-size:12px;letter-spacing:.08em;text-transform:uppercase}
.eyebrow{color:var(--accent);margin:0 0 20px;font-size:13px}
.small-label{color:var(--muted);margin:0 0 10px;display:block}
.lede{font-size:19px;line-height:1.5;color:var(--text);max-width:640px}
.muted{color:var(--muted)}

/* Header */
.site-header{border-bottom:2px solid var(--rule-strong)}
.header-inner{max-width:1440px;margin:0 auto;padding:22px var(--gutter);display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap}
.brand-wrap{display:flex;align-items:baseline;gap:14px;flex-wrap:wrap}
.brand{font-weight:700;font-size:22px;letter-spacing:-.02em;color:var(--ink);white-space:nowrap}
.brand:hover{text-decoration:none}
.edition{color:var(--muted);text-transform:none;letter-spacing:0}
.site-header nav{display:flex;align-items:center;gap:28px;flex-wrap:wrap}
.site-header nav a{color:var(--ink);font-size:15px;padding:4px 0;border-bottom:2px solid transparent}
.site-header nav a:hover{text-decoration:none;border-bottom-color:var(--rule)}
.site-header nav a[aria-current=page]{font-weight:600;border-bottom-color:var(--accent)}
.site-header nav .nav-rss{font-family:var(--mono);font-size:13px;color:var(--accent)}
.theme-toggle{display:inline-flex;align-items:center;justify-content:center;width:36px;height:36px;border:1px solid var(--rule);border-radius:50%;background:transparent;color:var(--ink)}
.theme-toggle:hover{border-color:var(--ink)}
.theme-toggle svg{width:18px;height:18px}
.theme-toggle .icon-sun{display:none}
:root[data-theme=dark] .theme-toggle .icon-sun{display:block}:root[data-theme=dark] .theme-toggle .icon-moon{display:none}
@media (prefers-color-scheme:dark){:root:not([data-theme=light]) .theme-toggle .icon-sun{display:block}:root:not([data-theme=light]) .theme-toggle .icon-moon{display:none}}

/* Hero */
.hero{display:flex;justify-content:space-between;align-items:flex-end;gap:64px;padding-top:72px;padding-bottom:56px}
.hero-copy{max-width:860px}
.hero h1{font-size:clamp(44px,6.2vw,84px);line-height:1;letter-spacing:-.045em;font-weight:700;margin-bottom:24px}
.ledger-stats{width:300px;flex-shrink:0;margin:0;border-top:2px solid var(--rule-strong)}
.ledger-stats div{display:flex;justify-content:space-between;gap:16px;padding:13px 0;border-bottom:1px solid var(--rule)}
.ledger-stats div:last-child{border-bottom:0}
.ledger-stats dt{color:var(--text);font-size:15px}
.ledger-stats dd{margin:0;font-family:var(--mono);font-weight:600;font-size:15px;color:var(--ink)}

/* Filter band */
.filter-band{background:var(--band);border-top:1px solid var(--rule);border-bottom:1px solid var(--rule)}
.filter-inner{display:flex;align-items:center;gap:20px;padding-top:18px;padding-bottom:18px;flex-wrap:wrap}
.search{flex:1 1 360px;display:flex;align-items:center;gap:12px;height:48px;padding:0 14px;background:var(--field);border:1px solid var(--field-border);border-radius:4px}
.search:focus-within{border-color:var(--accent);box-shadow:0 0 0 1px var(--accent)}
.search>svg{width:18px;height:18px;color:var(--accent);flex-shrink:0}
.search input{flex:1;min-width:0;border:0;background:transparent;font-size:16px;outline:none}
.search input::placeholder{color:var(--faint)}
.search input::-webkit-search-cancel-button{display:none}
.clear{display:inline-flex;border:0;background:transparent;padding:4px;color:var(--muted)}
.clear svg{width:16px;height:16px}
.filters{display:flex;align-items:center;gap:12px;flex-wrap:wrap}
.role-buttons{display:flex;gap:4px;flex-wrap:wrap}
.role-buttons button{height:40px;padding:0 14px;border:0;border-radius:4px;background:transparent;font-size:14px;color:var(--ink)}
.role-buttons button span{color:var(--muted);font-family:var(--mono);font-size:12px}
.role-buttons button:hover{background:var(--field)}
.role-buttons button[aria-pressed=true]{background:var(--inverse-bg);color:var(--inverse-ink);font-weight:600}
.role-buttons button[aria-pressed=true] span{color:inherit;opacity:.75}
.filters select{height:40px;padding:0 40px 0 12px;border:1px solid var(--field-border);border-radius:4px;background-color:var(--field);font-size:14px;max-width:240px;appearance:none;-webkit-appearance:none;background-image:linear-gradient(to top right,transparent 40%,var(--ink) 40% 60%,transparent 60%),linear-gradient(to top left,transparent 40%,var(--ink) 40% 60%,transparent 60%);background-position:right 22px center,right 16px center;background-size:6px 6px;background-repeat:no-repeat}
.search-status{color:var(--muted);font-size:14px;margin:14px auto 0;min-height:1px}
.search-status:empty{margin-top:0}

/* Ledger */
.ledger{padding-top:24px;padding-bottom:16px}
.ledger-head,.entry{display:grid;grid-template-columns:minmax(0,1fr) 170px 180px 116px 28px;gap:24px}
.ledger-head{color:var(--muted);padding:12px 0;border-bottom:2px solid var(--rule-strong)}
.entry{padding:24px 0;border-bottom:1px solid var(--rule);align-items:start}
.entry h3{margin:0 0 6px;font-size:21px;line-height:28px;font-weight:600;letter-spacing:-.01em}
.entry-title{color:var(--ink)}
.entry-main p{color:var(--text);margin:0;line-height:24px;display:-webkit-box;-webkit-box-orient:vertical;-webkit-line-clamp:2;line-clamp:2;overflow:hidden}
.entry-desk{font-size:15px;color:var(--ink);padding-top:3px}
.entry-evidence{padding-top:1px}
.entry-date{font-family:var(--mono);font-size:14px;color:var(--ink);padding-top:4px}
.entry-open{font-size:20px;line-height:28px;color:var(--accent);justify-self:end}
.entry-open:hover{text-decoration:none;transform:translateX(2px)}
.cell-label{display:none}
.evidence{display:inline-block;padding:3px 9px;border:1px solid var(--accent);border-radius:3px;color:var(--accent);font-family:var(--mono);font-size:12px;line-height:18px;white-space:nowrap}
.evidence.tested{background:var(--accent);color:var(--bg)}
.evidence.proposed,.evidence.vendor{border-color:var(--muted);color:var(--muted)}
.library-note{color:var(--muted);font-size:14px;margin-top:20px}
.empty{padding:48px 0;text-align:left}
.empty h3{font-size:22px}

/* Browse by task */
.task-index{padding-top:72px;padding-bottom:88px}
.section-head{display:flex;justify-content:space-between;align-items:baseline;gap:16px;margin-bottom:28px}
.section-head h2{font-size:36px;letter-spacing:-.03em;margin:0}
.mono-link{text-transform:none;letter-spacing:0;font-size:13px}
.task-grid{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(3,1fr);border-top:2px solid var(--rule-strong)}
.task-grid li{border-bottom:1px solid var(--rule)}
.task-grid a{display:flex;gap:16px;padding:24px 24px 24px 0;color:var(--ink);height:100%}
.task-grid a:hover{text-decoration:none;background:var(--band)}
.task-num{font-family:var(--mono);font-size:14px;color:var(--accent);width:28px;flex-shrink:0;padding-top:2px}
.task-text{display:flex;flex-direction:column;gap:6px;flex:1}
.task-text strong{font-size:19px;font-weight:600}
.task-text span{font-size:15px;line-height:22px;color:var(--text)}
.task-count{font-family:var(--mono);font-size:13px;color:var(--muted)}

/* Collections */
.page-head{padding-top:40px;padding-bottom:24px}
.page-head h1{font-size:clamp(36px,5vw,64px);letter-spacing:-.04em;line-height:1.05}
.page-head p{color:var(--text)}
.collection-head{display:flex;justify-content:space-between;align-items:baseline;gap:16px;margin-bottom:8px}
.collection-head h2{font-size:24px;margin:0}
.collection-head h2 span{color:var(--muted);font-weight:400}
.collection-head>span{font-family:var(--mono);font-size:12px;color:var(--muted)}
.collection{padding-bottom:72px}

/* Buttons and links */
.button{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:44px;padding:0 18px;border-radius:4px;border:1px solid var(--inverse-bg);background:var(--inverse-bg);color:var(--inverse-ink);font-weight:600;font-size:15px}
.button:hover{text-decoration:none;opacity:.9}
.button.secondary{background:transparent;color:var(--ink);border-color:var(--rule-strong)}
.back-link{display:inline-block;margin:32px 0 8px;font-size:15px}
.text-link{font-weight:600}

/* Detail */
.detail-header{padding:24px 0 40px;border-bottom:2px solid var(--rule-strong);margin-bottom:40px}
.detail-header h1{font-size:clamp(34px,4.6vw,60px);line-height:1.05;letter-spacing:-.035em;max-width:1000px;margin-bottom:20px}
.detail-meta{display:flex;align-items:center;gap:14px;flex-wrap:wrap;margin-bottom:20px;font-size:15px;color:var(--text)}
.detail-dates{font-family:var(--mono);font-size:13px;color:var(--muted);margin-bottom:24px}
.evidence-note{color:var(--muted);font-size:15px}
.detail-layout{display:grid;grid-template-columns:minmax(0,1fr) 340px;gap:72px;padding-bottom:88px}
.detail-section{padding:0 0 32px;margin-bottom:32px;border-bottom:1px solid var(--rule)}
.detail-section:last-child{border-bottom:0}
.detail-section h2{font-size:24px;letter-spacing:-.02em;margin-bottom:14px}
.detail-section h3{font-size:18px;margin-top:20px}
.detail-section p,.detail-section li{color:var(--text);font-size:17px;line-height:1.6}
.detail-section ul,.detail-section ol{padding-left:22px;margin:0}
.detail-section li{margin-bottom:8px}
.detail-section pre{white-space:pre-wrap;background:var(--pre);border:1px solid var(--rule);border-radius:4px;padding:16px;font-family:var(--mono);font-size:13px;line-height:1.6;color:var(--ink);margin:0}
.section-action{display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;margin-bottom:12px}
.section-action h2{margin:0}
.prompt{width:100%;background:var(--field);border:1px solid var(--field-border);border-radius:4px;padding:16px;font-family:var(--mono);font-size:13px;line-height:1.6;resize:vertical}
.copy-status{color:var(--muted);font-size:14px;min-height:20px;margin-top:8px}
.sample-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.source{padding:16px 0;border-top:1px solid var(--rule)}
.source:first-of-type{border-top:0;padding-top:0}
.source a{font-weight:600;font-size:17px}
.source p{font-family:var(--mono);font-size:13px!important;color:var(--muted)!important;margin:6px 0 10px}
.source blockquote{margin:0;padding-left:16px;border-left:2px solid var(--accent);color:var(--text);font-style:italic}
.supporting-detail{border-top:2px solid var(--rule-strong);padding-top:16px;margin-bottom:32px}
.supporting-detail summary{cursor:pointer;font-weight:600;font-size:17px;padding:4px 0 16px}
.related-link{display:flex;justify-content:space-between;gap:16px;padding:14px 0;border-bottom:1px solid var(--rule);color:var(--ink);font-weight:500}
.related-link span{color:var(--accent)}
.requirements{align-self:start;position:sticky;top:24px;border-top:2px solid var(--rule-strong);padding-top:20px}
.requirements h2{font-size:20px}
.requirements h3{font-family:var(--mono);font-size:12px;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);margin:20px 0 8px;font-weight:500}
.requirements ul{padding-left:18px;margin:0}
.requirements li{color:var(--text);margin-bottom:6px}
.requirements-note{font-size:14px;color:var(--muted);margin-top:20px}
.assessment-content{max-width:820px;padding-bottom:88px}
.not-found{padding-top:96px;padding-bottom:120px}
.not-found h1{font-size:clamp(36px,5vw,60px);letter-spacing:-.04em}

/* Sponsor page */
.sponsor-page{display:grid;grid-template-columns:minmax(0,1fr) 520px;gap:80px;padding-top:72px;padding-bottom:96px}
.sponsor-pitch h1{font-size:clamp(40px,5vw,64px);line-height:1.03;letter-spacing:-.04em;margin-bottom:24px}
.sponsor-pitch .lede{margin-bottom:32px}
.spot-preview{max-width:100%;display:flex;align-items:center;gap:12px;height:56px;padding:0 20px;background:var(--bar-bg);border:1px solid var(--bar-rule);border-radius:8px;max-width:560px;color:var(--bar-text);margin-bottom:32px;overflow:hidden;white-space:nowrap}
.spot-preview strong{color:var(--bar-ink)}.spot-preview>span:last-child{overflow:hidden;text-overflow:ellipsis}.sponsor-pitch{min-width:0}
.house-rules{list-style:none;counter-reset:rule;margin:0;padding:0;max-width:560px;border-top:2px solid var(--rule-strong)}
.house-rules li{counter-increment:rule;display:flex;gap:16px;padding:16px 0;border-bottom:1px solid var(--rule);color:var(--text)}
.house-rules li:last-child{border-bottom:0}
.house-rules li::before{content:counter(rule,decimal-leading-zero);font-family:var(--mono);font-size:13px;color:var(--accent);width:24px;flex-shrink:0;padding-top:2px}
.checkout-card{align-self:start;padding:32px;background:var(--band);border:1px solid var(--rule);border-radius:12px}
.checkout-card h2{font-size:22px;margin-bottom:24px}
.checkout-card h3{font-size:16px;margin:28px 0 10px}
.plans{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}
.plan{display:flex;flex-direction:column;gap:4px;padding:14px;border:1px solid var(--field-border);border-radius:8px;background:var(--field);color:var(--ink)}
a.plan:hover{text-decoration:none;border-color:var(--accent);box-shadow:0 0 0 1px var(--accent)}
.plan strong{font-size:15px}
.plan span{font-family:var(--mono);font-size:13px;color:var(--muted)}
.plan em{font-style:normal;font-size:13px;color:var(--accent);margin-top:6px}
.plan-pending span{color:var(--faint)}
.checkout-pending{margin:14px 0 0;font-size:14px;color:var(--ink);padding:10px 12px;border-left:3px solid var(--accent);background:var(--accent-wash)}
.next-steps{margin:0;padding-left:20px;color:var(--text);font-size:15px}
.next-steps li{margin-bottom:8px}
.fine-print{font-size:13px;color:var(--muted);margin:16px 0 0}

/* Footer */
.site-footer{border-top:2px solid var(--rule-strong);margin-top:0}
.footer-inner{display:flex;justify-content:space-between;align-items:flex-start;gap:24px;padding-top:32px;padding-bottom:40px;flex-wrap:wrap}
.footer-inner p{color:var(--muted);font-size:14px;margin:8px 0 0}
.footer-brand{font-size:18px}
.footer-inner nav{display:flex;gap:24px;flex-wrap:wrap;font-size:14px}
.footer-inner nav a{color:var(--ink)}

/* Sponsor bar: pinned to the bottom of every page, scrolls right to left, pauses on hover */
.sponsor-bar{position:fixed;left:0;right:0;bottom:0;z-index:10;height:var(--bar-h);display:flex;align-items:center;background:var(--bar-bg);border-top:1px solid var(--bar-rule);color:var(--bar-text);font-size:14px}
:root[data-sponsor-bar=hidden] .sponsor-bar{display:none}
.sponsor-label{flex-shrink:0;height:100%;display:flex;align-items:center;padding:0 20px;border-right:1px solid var(--bar-rule);font-family:var(--mono);font-size:11px;letter-spacing:.12em;text-transform:uppercase;color:var(--bar-muted)}
.sponsor-viewport{flex:1;min-width:0;overflow:hidden;height:100%;mask-image:linear-gradient(90deg,transparent,#000 24px,#000 calc(100% - 24px),transparent)}
.sponsor-track{display:flex;width:max-content;height:100%;animation:sponsor-scroll 50s linear infinite}
.sponsor-bar:hover .sponsor-track,.sponsor-bar:focus-within .sponsor-track{animation-play-state:paused}
.sponsor-group{display:flex;align-items:center;gap:40px;padding-right:40px;padding-left:28px}
.sponsor-item{display:inline-flex;align-items:center;gap:10px;white-space:nowrap;color:var(--bar-text)}
.sponsor-item:hover{text-decoration:none;color:var(--bar-ink)}
.sponsor-item strong{color:var(--bar-ink);font-weight:600}
.sponsor-mark{display:inline-flex;align-items:center;justify-content:center;width:24px;height:24px;border-radius:5px;background:var(--bar-ink);color:#000;font-family:var(--mono);font-size:10px;font-weight:600;flex-shrink:0}
.sponsor-cta,.sponsor-cta strong{color:var(--bar-accent)}
.sponsor-cta .sponsor-mark{background:transparent;border:1px dashed var(--bar-accent);color:var(--bar-accent);font-size:15px}
.spot-preview .sponsor-mark{width:28px;height:28px;font-size:11px}
.sponsor-close{flex-shrink:0;width:var(--bar-h);height:100%;display:flex;align-items:center;justify-content:center;border:0;border-left:1px solid var(--bar-rule);background:transparent;color:var(--bar-text)}
.sponsor-close:hover{color:var(--bar-ink)}
.sponsor-close svg{width:14px;height:14px;stroke-width:2.5}
@keyframes sponsor-scroll{from{transform:translateX(0)}to{transform:translateX(-50%)}}

/* Responsive */
@media (max-width:1150px){
  :root{--gutter:40px}
  .hero{flex-direction:column;align-items:stretch;gap:40px}
  .ledger-stats{width:100%;display:grid;grid-template-columns:repeat(2,1fr);column-gap:32px}
  .ledger-stats div:nth-last-child(2){border-bottom:0}
  .ledger-head,.entry{grid-template-columns:minmax(0,1fr) 140px 170px 28px}
  .ledger-head span:nth-child(4),.entry-date{display:none}
  .task-grid{grid-template-columns:repeat(2,1fr)}
  .detail-layout{grid-template-columns:minmax(0,1fr);gap:24px}
  .requirements{position:static}
  .sponsor-page{grid-template-columns:minmax(0,1fr);gap:48px}
}
@media (max-width:760px){
  :root{--gutter:20px}
  .header-inner{padding-top:16px;padding-bottom:16px}
  .site-header nav{gap:16px;width:100%}
  .hero{padding-top:40px;padding-bottom:36px}
  .ledger-stats{grid-template-columns:1fr}
  .ledger-stats div:nth-last-child(2){border-bottom:1px solid var(--rule)}
  .filter-inner{flex-direction:column;align-items:stretch}
  .search{flex:none}
  .filters select{flex:1;max-width:none}
  .ledger-head{display:none}
  .entry{grid-template-columns:1fr 28px;gap:10px 16px}
  .entry-main{grid-column:1/2}
  .entry-open{grid-column:2;grid-row:1}
  .entry-desk,.entry-evidence,.entry-date{grid-column:1/-1;display:flex;align-items:center;gap:10px;padding:0}
  .cell-label{display:inline;color:var(--muted);min-width:96px}
  .task-grid{grid-template-columns:1fr}
  .task-grid a{padding-right:0}
  .section-head{flex-direction:column}
  .section-head h2{font-size:30px}
  .sample-grid{grid-template-columns:1fr}
  .plans{grid-template-columns:1fr}
  .checkout-card{padding:24px}
  .sponsor-label{display:none}
}
@media (prefers-reduced-motion:reduce){
  *{scroll-behavior:auto!important;transition:none!important}
  .sponsor-track{animation:none}
  .sponsor-viewport{overflow-x:auto;mask-image:none;scrollbar-width:none}
}