:root{font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:var(--bt-text);background:var(--bt-surface);font-synthesis:none;line-height:1.55;--accent:#0cce6b;--line:#e1e5e2;--muted:#56625c}*{box-sizing:border-box}body{margin:0}a{color:var(--bt-accent);text-underline-offset:3px}a:hover{color:var(--bt-accent)}a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible,summary:focus-visible{outline:3px solid var(--bt-control);outline-offset:3px}.skip{position:absolute;left:16px;top:-80px;background:white;padding:12px;z-index:5}.skip:focus{top:10px}header{border-bottom:1px solid var(--line);background:var(--bt-surface)}header .top,header 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var(--bt-control);border-radius:6px;background:var(--accent);font:inherit;font-size:14px;font-weight:750;color:var(--bt-accent);text-decoration:none;cursor:pointer}button:hover,.button:hover{background:var(--bt-accent);color:var(--bt-accent)}.hero{padding:26px 0 30px;border-bottom:1px solid var(--line)}.hero h1{font-size:clamp(38px,6vw,62px);max-width:760px;line-height:1.04}.hero>p:not(.eyebrow){font-size:18px;max-width:660px}.eyebrow{text-transform:uppercase;letter-spacing:.085em;font-size:11px;font-weight:750;color:var(--bt-text)}.eyebrow span{text-transform:none;font-weight:450;letter-spacing:normal}.actions{display:flex;align-items:center;gap:16px;flex-wrap:wrap}.steps{display:flex;flex-wrap:wrap;gap:18px 42px;padding-left:22px;margin:30px 0 0;font-size:13px;font-weight:650}.columns{display:grid;grid-template-columns:minmax(0,2fr) minmax(230px,1fr);gap:48px}.columns aside{padding-left:26px;border-left:1px solid var(--line);margin-top:30px}.columns aside h2:first-child{margin-top:0}.section-heading{display:flex;align-items:center;justify-content:space-between;gap:15px}.section-heading a{font-size:13px}.news-list article,.post{padding:18px 0;border-bottom:1px solid var(--line)}.news-list p,.post p{font-size:14px;margin:8px 0 10px}.news-list h3 a,.post h3 a{color:var(--bt-text);text-decoration:none}.small{font-size:12px;color:var(--muted)}.empty{padding:20px 0;color:var(--muted);font-size:14px}.link-list{display:flex;flex-direction:column;gap:0}.link-list a{padding:11px 0;border-bottom:1px solid var(--line);font-size:14px;text-decoration:none}.link-list span{display:block;font-size:12px;color:var(--muted)}.chips{display:flex;gap:8px;flex-wrap:wrap;margin:18px 0}.chips a{padding:5px 12px;border:1px solid var(--line);border-radius:5px;text-decoration:none;font-size:13px}.chips [aria-current=page]{background:var(--bt-raised);border-color:var(--bt-control)}.directory{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:0 24px}.directory a{border-bottom:1px solid var(--line);padding:14px 0;text-decoration:none;font-size:14px}.search{margin:26px 0}.search input{min-width:260px}.filters{display:flex;align-items:end;gap:15px;flex-wrap:wrap;margin:25px 0}label{display:flex;flex-direction:column;gap:6px;font-size:13px;font-weight:650;margin:12px 0}input,textarea,select{font:inherit;font-weight:450;padding:10px 12px;color:var(--bt-text);background:white;border:1px solid var(--bt-control);border-radius:5px;max-width:100%;min-height:42px}textarea{width:100%;line-height:1.6;resize:vertical}.check{display:flex;flex-direction:row;align-items:center;gap:10px;font-weight:450}.check input{min-height:20px;width:18px;height:18px}.table-scroll{overflow:auto;border-top:1px solid var(--line)}table{border-collapse:collapse;width:100%;font-size:14px}th{text-align:left;font-size:11px;text-transform:uppercase;letter-spacing:.06em;background:var(--bt-raised);color:var(--bt-text)}th,td{padding:13px 15px;border-bottom:1px solid var(--line)}td:first-child{font-weight:650}td a{text-decoration:none}td:last-child{white-space:nowrap}.pagination{display:flex;justify-content:space-between;gap:20px;margin:24px 0;font-size:14px}.facts{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--line);border-bottom:1px solid var(--line);margin:25px 0}.facts div{padding:18px 20px 18px 0}dt{font-size:12px;color:var(--muted)}dd{margin:3px 0 0;font-size:18px;font-weight:700}.statistics{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}.statistics div{border-bottom:1px solid var(--line);padding-bottom:12px}.breadcrumbs{font-size:12px;color:var(--muted);margin-bottom:25px}.profile-heading{display:flex;justify-content:space-between;gap:20px;align-items:center}.reading{max-width:780px;margin:auto}.article-body{white-space:pre-wrap;line-height:1.85;margin:28px 0;overflow-wrap:anywhere}.reading li{overflow-wrap:anywhere}.lead{font-size:19px}.notice{border:1px solid var(--bt-control);background:var(--bt-raised);padding:12px 18px}.review{padding:20px 0;border-bottom:1px solid var(--line)}fieldset{border:1px solid var(--line);border-radius:5px}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:5px 20px}details{border-bottom:1px solid var(--line);padding:16px 0}summary{cursor:pointer;font-weight:650;font-size:14px}footer{display:flex;gap:20px;align-items:center;flex-wrap:wrap;font-size:12px;padding-top:25px;padding-bottom:25px;border-top:1px solid var(--line)}footer span{margin-right:auto}@media(max-width:720px){header .top,header nav,main,footer{padding-left:18px;padding-right:18px}.top{min-height:68px}.brand{font-size:19px}.top .button{font-size:12px;padding:9px 10px}header nav{gap:19px}.columns{grid-template-columns:1fr;gap:5px}.columns aside{border-left:0;padding-left:0;border-top:1px solid var(--line);padding-top:22px}.directory{grid-template-columns:1fr 1fr}.facts{grid-template-columns:1fr 1fr}.profile-heading{display:block}.statistics{grid-template-columns:1fr 1fr}.form-grid{grid-template-columns:1fr}.search input{min-width:0;width:100%}.search .actions{flex-wrap:nowrap}.steps{gap:10px 32px}.reading .lead{font-size:17px}}@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important}}
/* Public research shares Blacktop without changing routing or source data. */
.blacktop-research{--accent:var(--bt-accent);--line:var(--bt-border);--muted:var(--bt-muted);background:var(--bt-canvas);color:var(--bt-text)}
.blacktop-research header{background:var(--bt-surface)}
.blacktop-research header .top,.blacktop-research header nav,.blacktop-research main,.blacktop-research footer{max-width:1500px;padding-left:40px;padding-right:40px}
.blacktop-research .brand{display:flex;align-items:center;gap:10px;font-family:'DM Sans',sans-serif;font-size:22px;letter-spacing:-.8px;color:var(--bt-text)}
.blacktop-research .brand small{display:block;font-size:9px;letter-spacing:2px;font-weight:500;color:var(--bt-muted);margin-top:3px}.bt-brand-mark{color:var(--bt-accent);font-size:30px}
.blacktop-research header nav{gap:25px;border-top:1px solid var(--bt-border)}
.blacktop-research h1,.blacktop-research h2,.blacktop-research h3{font-family:'Barlow Condensed',sans-serif;font-weight:600;letter-spacing:0;color:var(--bt-text)}
.blacktop-research h1{font-size:clamp(38px,4.5vw,58px)}.blacktop-research h2{font-size:29px}.blacktop-research h3{font-size:23px}
.blacktop-research a:hover{color:var(--bt-accent)}
.blacktop-research .button,.blacktop-research button{background:var(--bt-accent);border-color:var(--bt-accent);color:var(--bt-on-accent)}
.blacktop-research .hero{background:var(--bt-surface);padding:32px;border:1px solid var(--bt-border);border-radius:6px;margin:12px 0 32px}
.blacktop-research .hero h1{font-size:clamp(42px,5vw,60px)}.blacktop-research .hero>p:not(.eyebrow){font-size:16px;color:var(--bt-muted)}
.blacktop-research .eyebrow{color:var(--bt-muted);font-size:10px;letter-spacing:1.7px}
.blacktop-research .steps{padding:22px 0 0;list-style:none;counter-reset:steps;border-top:1px solid var(--bt-border);color:var(--bt-muted)}.blacktop-research .steps li{counter-increment:steps}.blacktop-research .steps li:before{content:'0' counter(steps);color:var(--bt-accent);margin-right:10px}
.blacktop-research .columns aside{background:var(--bt-surface);border:1px solid var(--bt-border);border-radius:6px;padding:24px;height:fit-content}
.blacktop-research input,.blacktop-research select,.blacktop-research textarea{background:var(--bt-surface);color:var(--bt-text);border-color:var(--bt-control)}
.blacktop-research .facts{background:var(--bt-raised);padding:0 18px;border:1px solid var(--bt-border);border-radius:6px}.blacktop-research .chips a:hover{background:var(--bt-selected)}
.blacktop-research .notice{background:var(--bt-selected);border-color:var(--bt-border)}
@media(max-width:760px){.blacktop-research header .top,.blacktop-research header nav,.blacktop-research main,.blacktop-research footer{padding-left:18px;padding-right:18px}.blacktop-research .brand{font-size:18px}.blacktop-research .brand small{font-size:8px}.blacktop-research .hero{padding:22px}.blacktop-research header nav{gap:20px}.blacktop-research .steps{gap:15px}.blacktop-research .top .button{font-size:11px;padding:8px}}
.blacktop-home-hero{display:grid;grid-template-columns:minmax(0,1fr) 340px;gap:45px;align-items:center}.blacktop-home-start{background:var(--bt-raised);border:1px solid var(--bt-border);padding:26px;border-radius:6px}.blacktop-home-start h2{font-size:39px;margin:12px 0!important}.blacktop-home-start p{font-size:13px;color:var(--bt-muted)}.blacktop-home-start>a{display:flex;margin-top:12px}.blacktop-home-start small{display:block;font-size:10px;color:var(--bt-muted);margin-top:20px}.blacktop-home-start .blacktop-secondary{font-size:12px;padding:10px;justify-content:center;color:var(--bt-text);border:1px solid var(--bt-control);border-radius:5px;text-decoration:none}
@media(max-width:950px){.blacktop-home-hero{grid-template-columns:1fr;gap:24px}.blacktop-home-start h2{font-size:34px}.blacktop-home-start{max-width:100%}}