:root{
  --navy:#1D3C6A;--navy-deep:#142C50;--blue:#2185C0;--blue-mid:#3A9AD4;--blue-light:#4AA8DC;
  --sky:#E8F1FA;--white:#fff;--offwhite:#F7F9FC;--silver:#CBD5E1;--slate:#475569;--ink:#0F172A;--gold:#E8A838;
  --serif:'Playfair Display',Georgia,serif;--sans:'DM Sans',-apple-system,BlinkMacSystemFont,sans-serif;
  --shadow-sm:0 2px 8px rgba(29,60,106,.06);--shadow:0 8px 24px rgba(29,60,106,.08);--shadow-lg:0 20px 60px rgba(29,60,106,.12);
  --radius:10px;--radius-sm:6px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:var(--sans);color:var(--ink);background:var(--white);line-height:1.65;-webkit-font-smoothing:antialiased}
a{color:var(--blue);text-decoration:none}
a:hover{color:var(--navy)}
h1,h2,h3,h4{font-family:var(--serif);color:var(--navy);letter-spacing:-.01em;line-height:1.2;margin:0 0 .6em}
h1{font-size:clamp(2rem,4.5vw,3.2rem);font-weight:700}
h2{font-size:clamp(1.5rem,2.6vw,2.1rem);font-weight:700}
h3{font-size:1.25rem;font-weight:600}
p{margin:0 0 1em}
.container{max-width:980px;margin:0 auto;padding:0 1.5rem}
.container-wide{max-width:1180px;margin:0 auto;padding:0 1.5rem}

/* Nav — research-project chrome, not consulting */
nav.tai-nav{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.94);backdrop-filter:blur(10px);border-bottom:1px solid var(--silver);padding:.85rem 0}
.nav-inner{max-width:1180px;margin:0 auto;padding:0 1.5rem;display:flex;align-items:center;justify-content:space-between;gap:1.5rem}
.brand{font-family:var(--serif);font-size:1.15rem;font-weight:700;color:var(--navy);text-decoration:none;letter-spacing:-.01em}
.brand .accent{color:var(--blue)}
.nav-links{display:flex;gap:1.6rem;list-style:none;margin:0;padding:0;font-size:.92rem;font-weight:500}
.nav-links a{color:var(--slate)}
.nav-links a:hover,.nav-links a.active{color:var(--navy)}
.publisher{font-size:.78rem;color:var(--slate);font-style:italic}
.publisher a{color:var(--slate);border-bottom:1px solid var(--silver)}
@media(max-width:760px){.nav-links{display:none}.publisher{display:none}}

/* Hero */
.hero{padding:4rem 0 2.5rem;background:linear-gradient(180deg,var(--sky) 0%,var(--white) 100%);border-bottom:1px solid var(--silver)}
.hero .eyebrow{font-size:.78rem;text-transform:uppercase;letter-spacing:.14em;color:var(--blue);font-weight:600;margin-bottom:.8rem}
.hero h1{margin-bottom:.6rem}
.hero .lede{font-size:1.18rem;color:var(--slate);max-width:680px}
.hero .updated{font-size:.82rem;color:var(--slate);margin-top:1.2rem;font-style:italic}

/* Sections */
section{padding:3rem 0}
section.alt{background:var(--offwhite)}
.section-eyebrow{font-size:.75rem;text-transform:uppercase;letter-spacing:.14em;color:var(--blue);font-weight:600;margin-bottom:.5rem}

/* Summary cards */
.summary{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:1rem;margin:1.5rem 0 2.5rem}
.sc{background:var(--white);border:1px solid var(--silver);border-radius:var(--radius);padding:1.1rem 1.3rem;box-shadow:var(--shadow-sm)}
.sc .label{font-size:.78rem;text-transform:uppercase;letter-spacing:.08em;color:var(--slate);margin-bottom:.3rem}
.sc .value{font-family:var(--serif);font-size:2rem;font-weight:700;color:var(--navy);line-height:1}

/* Lab cards */
.labs{display:flex;flex-direction:column;gap:1rem}
.lab{background:var(--white);border:1px solid var(--silver);border-radius:var(--radius);padding:1.4rem 1.6rem;box-shadow:var(--shadow-sm);transition:box-shadow .2s}
.lab:hover{box-shadow:var(--shadow)}
.lab-head{display:flex;align-items:center;gap:1rem;margin-bottom:.8rem;flex-wrap:wrap}
.grade{width:52px;height:52px;border-radius:var(--radius-sm);display:flex;align-items:center;justify-content:center;font-family:var(--serif);font-size:1.6rem;font-weight:700;flex-shrink:0}
.tier-measured{background:#E1F5EE;color:#085041}
.tier-marketing{background:#FAEEDA;color:#633806}
.tier-none{background:#FCEBEB;color:#791F1F}
.lab-meta{flex:1;min-width:0}
.lab-name{font-family:var(--serif);font-size:1.2rem;font-weight:700;color:var(--navy);margin:0}
.lab-name a{color:var(--navy)}
.lab-last{font-size:.78rem;color:var(--slate);margin:.15rem 0 0;font-style:italic}
.badge{font-size:.72rem;padding:.3rem .7rem;border-radius:999px;font-weight:600;text-transform:uppercase;letter-spacing:.06em}
.lab-detail{font-size:.95rem;color:var(--slate);margin:.4rem 0}
.lab-gap{font-size:.82rem;color:var(--slate);margin:.4rem 0 .8rem}
.lab-gap strong{color:var(--navy);font-weight:600}
.btn{display:inline-block;font-family:var(--sans);font-size:.85rem;font-weight:600;padding:.55rem 1.1rem;border-radius:var(--radius-sm);border:1px solid var(--navy);background:var(--white);color:var(--navy);cursor:pointer;text-decoration:none;transition:all .15s}
.btn:hover{background:var(--navy);color:var(--white)}
.btn-primary{background:var(--navy);color:var(--white)}
.btn-primary:hover{background:var(--navy-deep);color:var(--white)}

/* Tables */
table.rubric{width:100%;border-collapse:collapse;margin:1.2rem 0;font-size:.92rem}
table.rubric th,table.rubric td{text-align:left;padding:.75rem .9rem;border-bottom:1px solid var(--silver);vertical-align:top}
table.rubric th{background:var(--sky);color:var(--navy);font-weight:600;font-family:var(--sans)}
table.rubric tr:last-child td{border-bottom:none}

/* Lab page detail */
.lab-hero{padding:3rem 0 1.5rem;background:var(--sky);border-bottom:1px solid var(--silver)}
.lab-hero .grade{width:80px;height:80px;font-size:2.4rem;margin-bottom:1rem}
.scorecard{background:var(--white);border:1px solid var(--silver);border-radius:var(--radius);padding:1.4rem 1.6rem;margin:1.5rem 0;box-shadow:var(--shadow-sm)}
.scorecard h3{margin-top:0}
.kv{display:grid;grid-template-columns:180px 1fr;gap:.5rem 1rem;font-size:.92rem}
.kv dt{color:var(--slate);font-weight:500}
.kv dd{margin:0;color:var(--ink)}

/* Form */
.form-card{background:var(--white);border:1px solid var(--silver);border-radius:var(--radius);padding:1.8rem;box-shadow:var(--shadow-sm)}
.form-card label{display:block;font-size:.85rem;font-weight:600;color:var(--navy);margin:1rem 0 .35rem}
.form-card input,.form-card select,.form-card textarea{width:100%;padding:.65rem .8rem;border:1px solid var(--silver);border-radius:var(--radius-sm);font-family:var(--sans);font-size:.95rem;background:var(--white)}
.form-card textarea{min-height:140px;resize:vertical}
.form-card button{margin-top:1.4rem}

/* Map page */
#map-wrap{background:var(--white);border:1px solid var(--silver);border-radius:var(--radius);padding:1.2rem;box-shadow:var(--shadow-sm)}
#map svg{width:100%;height:auto;display:block}
.legend{display:flex;gap:1.2rem;flex-wrap:wrap;margin-top:1rem;padding:.9rem 1rem;background:var(--offwhite);border-radius:var(--radius-sm);font-size:.82rem}
.legend-item{display:flex;align-items:center;gap:.5rem;color:var(--slate)}
.legend-dot{width:14px;height:14px;border-radius:50%;border:2px solid #fff;box-shadow:0 1px 3px rgba(0,0,0,.2)}

/* Footer */
footer{background:var(--navy-deep);color:#cfd9e8;padding:2.5rem 0 2rem;margin-top:4rem;font-size:.88rem}
footer .container{display:flex;justify-content:space-between;gap:2rem;flex-wrap:wrap}
footer h4{font-family:var(--serif);color:#fff;font-size:1.05rem;margin:0 0 .6rem}
footer a{color:var(--blue-light)}
footer a:hover{color:#fff}
.foot-note{margin-top:1.5rem;padding-top:1.2rem;border-top:1px solid rgba(255,255,255,.12);font-size:.78rem;color:#9fb3cc;text-align:center}

/* Mobile hardening */
html{-webkit-text-size-adjust:100%}
img,svg{max-width:100%;height:auto}
@media(max-width:760px){
  body{font-size:16px}
  .container,.container-wide{padding:0 1.1rem}
  nav.tai-nav{padding:.7rem 0}
  .nav-inner{flex-wrap:wrap;gap:.6rem;justify-content:flex-start}
  .brand{font-size:1rem;flex:1}
  .nav-links{display:flex;flex-basis:100%;gap:1rem;font-size:.85rem;flex-wrap:wrap;padding-top:.4rem;border-top:1px solid var(--silver);margin-top:.4rem}
  .publisher{display:none}
  .hero{padding:2.4rem 0 1.6rem}
  section{padding:2rem 0}
  .summary{grid-template-columns:repeat(2,1fr);gap:.7rem}
  .sc{padding:.85rem 1rem}
  .sc .value{font-size:1.6rem}
  .lab{padding:1.1rem 1.1rem}
  .lab-head{gap:.7rem}
  .grade{width:46px;height:46px;font-size:1.4rem}
  .lab-name{font-size:1.05rem}
  .lab-hero .grade{width:64px;height:64px;font-size:1.9rem}
  table.rubric{font-size:.85rem;display:block;overflow-x:auto;-webkit-overflow-scrolling:touch}
  table.rubric th,table.rubric td{padding:.55rem .65rem}
  .kv{grid-template-columns:1fr;gap:.15rem .5rem}
  .kv dt{margin-top:.6rem}
  .form-card{padding:1.2rem}
  footer .container{flex-direction:column;gap:1.4rem}
  .btn{padding:.7rem 1.2rem;font-size:.9rem}
}
@media(max-width:420px){
  h1{font-size:1.85rem}
  .summary{grid-template-columns:1fr 1fr}
}
/* Touch targets */
a,button,.btn{min-height:44px;display:inline-flex;align-items:center}
.nav-links a{min-height:36px}
.lab-name a,footer a,.kv dd a{min-height:auto;display:inline}
/* Reduce motion */
@media(prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important}}