/* Critical Research Institute — site styles */
:root{
  --ink:#0F2540;        /* navy */
  --ink-2:#1B3A5C;
  --paper:#FFFFFF;
  --mist:#F1F4F7;
  --line:#D6DDE5;
  --slate:#5B6B7C;
  --teal:#0B7A78;       /* primary action */
  --teal-2:#0A6462;
  --ochre:#C99A2E;      /* data highlight, used sparingly */
  --text:#152030;
  --serif:"IBM Plex Serif", Georgia, "Times New Roman", serif;
  --sans:"IBM Plex Sans", "Helvetica Neue", Arial, sans-serif;
  --max:1180px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto} *,*::before,*::after{animation:none!important;transition:none!important}}
body{margin:0;font-family:var(--sans);font-size:17px;line-height:1.6;color:var(--text);background:var(--paper);-webkit-font-smoothing:antialiased}
img,svg{max-width:100%;height:auto}
a{color:var(--teal);text-decoration:none}
a:hover{text-decoration:underline}
:focus-visible{outline:3px solid var(--ochre);outline-offset:3px}
.wrap{max-width:var(--max);margin:0 auto;padding:0 24px}
h1,h2,h3,h4{font-family:var(--serif);font-weight:500;line-height:1.15;margin:0 0 .5em;color:var(--ink)}
h1{font-size:clamp(2.4rem,5vw,4rem);letter-spacing:-.01em}
h2{font-size:clamp(1.8rem,3.2vw,2.5rem)}
h3{font-size:1.35rem}
h4{font-size:1.1rem}
p{margin:0 0 1em}
.lede{font-size:1.2rem;color:var(--slate);max-width:62ch}
.btn{display:inline-block;padding:.8rem 1.4rem;border-radius:4px;font-weight:600;font-size:.95rem;border:2px solid transparent;transition:background .15s,color .15s}
.btn:hover{text-decoration:none}
.btn-primary{background:var(--teal);color:#fff}
.btn-primary:hover{background:var(--teal-2)}
.btn-outline{border-color:var(--ink);color:var(--ink)}
.btn-outline:hover{background:var(--ink);color:#fff}
.btn-light{border-color:#fff;color:#fff}
.btn-light:hover{background:#fff;color:var(--ink)}
.skip{position:absolute;left:-999px;top:8px;background:var(--ochre);color:var(--ink);padding:.5rem 1rem;z-index:100}
.skip:focus{left:8px}

/* Header */
.topbar{background:var(--ink);color:#fff;font-size:.85rem}
.topbar .wrap{display:flex;justify-content:flex-end;gap:1.5rem;padding-top:.45rem;padding-bottom:.45rem}
.topbar a{color:#C9D4E0}
.topbar a:hover{color:#fff}
header.site{position:sticky;top:0;z-index:50;background:var(--paper);border-bottom:1px solid var(--line)}
header.site .wrap{display:flex;align-items:center;justify-content:space-between;height:72px}
.brand{display:flex;align-items:center;gap:.7rem;color:var(--ink);font-family:var(--serif);font-size:1.15rem;font-weight:600;letter-spacing:.01em}
.brand:hover{text-decoration:none}
.brand .mark{width:36px;height:36px;flex:none}
.brand small{display:block;font-family:var(--sans);font-weight:400;font-size:.72rem;color:var(--slate);letter-spacing:.06em}
nav.main ul{list-style:none;margin:0;padding:0;display:flex;gap:1.6rem}
nav.main a{color:var(--ink);font-weight:500;font-size:.95rem;padding:.4rem 0;border-bottom:2px solid transparent}
nav.main a:hover,nav.main a[aria-current="page"]{border-bottom-color:var(--teal);text-decoration:none}
.nav-toggle{display:none;background:none;border:1px solid var(--line);border-radius:4px;padding:.45rem .6rem;cursor:pointer;color:var(--ink)}
@media (max-width:900px){
  .nav-toggle{display:inline-flex;align-items:center;gap:.4rem;font:inherit;font-size:.9rem}
  nav.main{display:none;position:absolute;left:0;right:0;top:72px;background:var(--paper);border-bottom:1px solid var(--line)}
  nav.main.open{display:block}
  nav.main ul{flex-direction:column;gap:0;padding:.5rem 24px 1rem}
  nav.main a{display:block;padding:.75rem 0;border-bottom:1px solid var(--line)}
  .topbar{display:none}
}

/* Hero */
.hero{background:var(--ink);color:#fff;position:relative;overflow:hidden}
.hero .wrap{display:grid;grid-template-columns:1.2fr 1fr;gap:3rem;align-items:center;padding-top:5.5rem;padding-bottom:5.5rem;position:relative}
.hero h1{color:#fff;max-width:14ch}
.hero .lede{color:#C9D4E0}
.hero .actions{display:flex;gap:.8rem;flex-wrap:wrap;margin-top:1.6rem}
.hero .instrument{justify-self:end;width:100%;max-width:440px}
@media (max-width:900px){.hero .wrap{grid-template-columns:1fr;padding-top:3.5rem;padding-bottom:3.5rem}.hero .instrument{max-width:320px;justify-self:start}}

/* Page hero (interior) */
.page-hero{background:var(--mist);border-bottom:1px solid var(--line)}
.page-hero .wrap{padding-top:3.5rem;padding-bottom:3.5rem}
.page-hero h1{max-width:18ch}

/* Sections */
section.block{padding:4.5rem 0}
section.block.tint{background:var(--mist)}
section.block.dark{background:var(--ink);color:#fff}
section.block.dark h2,section.block.dark h3{color:#fff}
.section-head{display:flex;justify-content:space-between;align-items:flex-end;gap:2rem;margin-bottom:2.2rem}
.section-head p{margin:0;color:var(--slate);max-width:56ch}
.section-head a.more{white-space:nowrap;font-weight:600}
@media (max-width:700px){.section-head{flex-direction:column;align-items:flex-start;gap:.6rem}}

/* Grids */
.grid{display:grid;gap:1.5rem}
.grid.c3{grid-template-columns:repeat(3,1fr)}
.grid.c4{grid-template-columns:repeat(4,1fr)}
.grid.c2{grid-template-columns:repeat(2,1fr)}
@media (max-width:900px){.grid.c3,.grid.c4{grid-template-columns:repeat(2,1fr)}}
@media (max-width:600px){.grid.c2,.grid.c3,.grid.c4{grid-template-columns:1fr}}

/* Area tiles — bordered list, not cards */
.area{border-top:3px solid var(--teal);padding:1.2rem 0 0;}
.area h3{margin-bottom:.35rem}
.area p{color:var(--slate);font-size:.98rem;margin-bottom:.6rem}
.area a{font-weight:600;font-size:.92rem}

/* Service rows */
.service{display:grid;grid-template-columns:52px 1fr;gap:1rem;align-items:start;padding:1.4rem 0;border-bottom:1px solid var(--line)}
.service:first-child{border-top:1px solid var(--line)}
.service .ic{width:44px;height:44px;color:var(--teal)}
.service h3{margin-bottom:.3rem}
.service p{color:var(--slate);margin:0}

/* Stats */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:1.5rem;border-top:1px solid rgba(255,255,255,.2);padding-top:2rem}
.stat b{display:block;font-family:var(--serif);font-size:2.6rem;font-weight:500;color:var(--ochre);line-height:1}
.stat span{display:block;margin-top:.5rem;color:#C9D4E0;font-size:.95rem}
@media (max-width:700px){.stats{grid-template-columns:repeat(2,1fr)}}

/* Insights */
.insight{display:flex;flex-direction:column;background:var(--paper);border:1px solid var(--line)}
.insight .band{height:8px;background:var(--teal)}
.insight .band.a{background:var(--ochre)}
.insight .band.b{background:var(--ink-2)}
.insight .body{padding:1.3rem 1.3rem 1.5rem;display:flex;flex-direction:column;flex:1}
.insight .meta{font-size:.85rem;color:var(--slate);margin-bottom:.6rem}
.insight h3{font-size:1.2rem}
.insight p{color:var(--slate);font-size:.95rem;flex:1}
.insight a.read{font-weight:600;font-size:.92rem}

/* Sector list */
.sectors{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border:1px solid var(--line)}
.sector{padding:1.6rem;border-right:1px solid var(--line)}
.sector:last-child{border-right:0}
.sector h3{font-size:1.15rem}
.sector p{color:var(--slate);font-size:.95rem;margin:0}
@media (max-width:900px){.sectors{grid-template-columns:repeat(2,1fr)}.sector:nth-child(2){border-right:0}.sector:nth-child(-n+2){border-bottom:1px solid var(--line)}}
@media (max-width:600px){.sectors{grid-template-columns:1fr}.sector{border-right:0;border-bottom:1px solid var(--line)}.sector:last-child{border-bottom:0}}

/* Process (sequence — numbered on purpose) */
.process{counter-reset:step;list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(5,1fr);gap:1.5rem}
.process li{counter-increment:step;border-top:1px solid var(--line);padding-top:1rem}
.process li::before{content:counter(step);display:block;font-family:var(--serif);font-size:1.6rem;color:var(--teal);margin-bottom:.3rem}
.process h4{margin-bottom:.3rem}
.process p{color:var(--slate);font-size:.92rem;margin:0}
@media (max-width:900px){.process{grid-template-columns:repeat(2,1fr)}}
@media (max-width:600px){.process{grid-template-columns:1fr}}

/* Two-column prose */
.split{display:grid;grid-template-columns:1fr 1fr;gap:3rem;align-items:start}
@media (max-width:800px){.split{grid-template-columns:1fr}}
.prose{max-width:66ch}
.prose ul{padding-left:1.2rem}
.prose li{margin-bottom:.4rem}

/* Team */
.person{border-top:1px solid var(--line);padding-top:1rem}
.person .ph{aspect-ratio:1/1;background:var(--mist);display:flex;align-items:center;justify-content:center;font-family:var(--serif);font-size:2.2rem;color:var(--ink-2);margin-bottom:.8rem}
.person h3{font-size:1.1rem;margin-bottom:.15rem}
.person .role{font-size:.9rem;color:var(--slate);margin:0 0 .5rem}
.person p{font-size:.92rem;margin:0}

/* CTA band */
.cta{background:var(--teal);color:#fff}
.cta .wrap{display:flex;justify-content:space-between;align-items:center;gap:2rem;padding-top:3rem;padding-bottom:3rem}
.cta h2{color:#fff;margin:0}
.cta p{margin:.3rem 0 0;color:#DDF2F1}
@media (max-width:700px){.cta .wrap{flex-direction:column;align-items:flex-start}}

/* Forms */
form.contact{display:grid;grid-template-columns:1fr 1fr;gap:1rem}
form.contact .full{grid-column:1/-1}
label{display:block;font-size:.9rem;font-weight:600;margin-bottom:.3rem;color:var(--ink)}
input,select,textarea{width:100%;padding:.7rem .8rem;border:1px solid var(--line);border-radius:4px;font:inherit;font-size:1rem;background:#fff}
textarea{min-height:140px;resize:vertical}
@media (max-width:600px){form.contact{grid-template-columns:1fr}}
.notice{background:var(--mist);border-left:4px solid var(--ochre);padding:1rem 1.2rem;font-size:.95rem}

/* Footer */
footer.site{background:var(--ink);color:#C9D4E0;padding:3.5rem 0 2rem;font-size:.92rem}
footer.site .cols{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:2.5rem;margin-bottom:2.5rem}
footer.site h4{color:#fff;font-family:var(--sans);font-size:.95rem;font-weight:600;margin-bottom:.8rem}
footer.site ul{list-style:none;padding:0;margin:0}
footer.site li{margin-bottom:.45rem}
footer.site a{color:#C9D4E0}
footer.site a:hover{color:#fff}
footer.site .brand{color:#fff}
footer.site .brand small{color:#9FB0C2}
footer.site .legal{border-top:1px solid rgba(255,255,255,.15);padding-top:1.4rem;display:flex;justify-content:space-between;gap:1rem;flex-wrap:wrap;font-size:.85rem;color:#9FB0C2}
footer.site .legal ul{display:flex;gap:1.2rem}
@media (max-width:800px){footer.site .cols{grid-template-columns:1fr 1fr}}
@media (max-width:500px){footer.site .cols{grid-template-columns:1fr}}

/* Table */
table{width:100%;border-collapse:collapse;font-size:.95rem}
th,td{text-align:left;padding:.8rem;border-bottom:1px solid var(--line);vertical-align:top}
th{font-weight:600;color:var(--ink);background:var(--mist)}
.table-wrap{overflow-x:auto}

/* Accordion */
details{border-top:1px solid var(--line);padding:1rem 0}
details:last-of-type{border-bottom:1px solid var(--line)}
summary{cursor:pointer;font-weight:600;font-size:1.05rem;color:var(--ink);list-style:none;display:flex;justify-content:space-between;align-items:center}
summary::-webkit-details-marker{display:none}
summary::after{content:"+";font-size:1.4rem;color:var(--teal)}
details[open] summary::after{content:"–"}
details p{margin:.8rem 0 0;color:var(--slate);max-width:70ch}