/* ============================================================
   Tridia Partners — "The Ledger"
   Establishment-classic, subtly modern. Type + CSS, zero stock art.
   ============================================================ */

:root{
  /* ink / dark grounds */
  --ink:#193966; --ink-deep:#0F2547; --ink-press:#0A1B36;
  /* paper / light grounds */
  --paper:#FBFAF7; --paper-card:#FFFFFF; --mist:#EEF1F5; --teal-tint:#E4EEF0;
  /* lines */
  --line:#DCE3EA; --line-ink:rgba(25,57,102,.14); --line-on-ink:rgba(232,237,243,.16);
  /* teal accent */
  --teal:#2A7F8E; --teal-deep:#1F6573; --teal-on-dark:#6FA9B3;
  /* brass tick */
  --brass:#B08D57;
  /* text */
  --text-body:#2B3A4F; --text-muted:#5C6B7E; --text-on-ink:#E8EDF3; --text-on-ink-muted:#9DB0C6;
  /* type */
  --serif:"Cormorant Garamond",Georgia,"Times New Roman",serif;
  --sans:"Inter",-apple-system,"Segoe UI",system-ui,sans-serif;
  /* layout */
  --container:1360px; --measure:68ch; --gutter:24px;
  --pad-x:clamp(20px,5vw,80px); --section-y:clamp(72px,9vw,120px);
  --radius:6px; --ease:cubic-bezier(0.22,1,0.36,1);
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--text-body);
  font:400 17px/1.65 var(--sans);-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
.tnum{font-feature-settings:"tnum" 1;font-variant-numeric:tabular-nums}

/* ---------- typography ---------- */
h1,h2,h3{font-family:var(--serif);color:var(--ink);font-weight:500;margin:0 0 .4em;letter-spacing:-.005em}
h1{font-weight:600;font-size:clamp(40px,6vw,76px);line-height:1.04;letter-spacing:-.01em}
h2{font-size:clamp(30px,4vw,46px);line-height:1.10}
h3{font-size:clamp(23px,2.4vw,28px);line-height:1.18}
p{margin:0 0 1rem;max-width:var(--measure)}
a{color:var(--teal-deep);text-decoration:none}
strong{font-weight:600;color:var(--ink)}

.lead{font-size:clamp(18px,2vw,21px);line-height:1.55;color:var(--text-body)}
.muted{color:var(--text-muted)}
.small{font-size:14px;line-height:1.55}

/* ledger-label eyebrow */
.eyebrow{display:flex;align-items:center;gap:14px;font:600 12px/1 var(--sans);
  text-transform:uppercase;letter-spacing:.14em;color:var(--teal-deep);margin:0 0 22px}
.eyebrow::before{content:"";width:26px;height:1px;background:var(--teal);flex:none}
.eyebrow .num{color:var(--text-muted)}
.on-ink .eyebrow,.ground-ink .eyebrow,.ground-ink-deep .eyebrow{color:var(--teal-on-dark)}
.on-ink .eyebrow::before{background:var(--teal-on-dark)}

/* ---------- layout ---------- */
.container{max-width:var(--container);margin-inline:auto;padding-inline:var(--pad-x)}
.section{padding-block:var(--section-y)}
.ground-paper{background:var(--paper)}
.ground-mist{background:var(--mist)}
.ground-ink{background:var(--ink);color:var(--text-on-ink)}
.ground-ink-deep{background:var(--ink-deep);color:var(--text-on-ink)}
.ground-teal-tint{background:var(--teal-tint)}
.ground-ink h1,.ground-ink h2,.ground-ink h3,.ground-ink-deep h1,.ground-ink-deep h2,.ground-ink-deep h3{color:var(--paper)}
.ground-ink p,.ground-ink-deep p{color:var(--text-on-ink)}
.grid{display:grid;gap:var(--gutter)}
/* asymmetric editorial: heading left (5), body right (6, gutter col @6) */
.editorial{display:grid;grid-template-columns:repeat(12,1fr);gap:var(--gutter);align-items:start}
.editorial>.col-head{grid-column:1/6}
.editorial>.col-body{grid-column:7/13;max-width:var(--measure)}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:60;height:64px;background:transparent;
  transition:background .2s,box-shadow .2s,border-color .2s;border-bottom:1px solid transparent}
.site-header.is-solid{background:var(--paper);border-bottom:1px solid var(--line);box-shadow:0 2px 12px rgba(15,37,71,.04)}
.header-inner{height:64px;display:flex;align-items:center;justify-content:space-between}
.brand{display:flex;align-items:center}
.brand-logo{height:34px;width:auto;display:block;transition:opacity .2s}
/* hero is dark: show a reversed wordmark until solid */
.brand-logo.rev{display:none}
.over-hero .site-header:not(.is-solid) .brand-logo.pos{display:none}
.over-hero .site-header:not(.is-solid) .brand-logo.rev{display:block}
.site-nav{display:flex;align-items:center;gap:30px}
.site-nav a{font:500 14px/1 var(--sans);color:var(--ink);letter-spacing:.01em;padding:6px 0;position:relative}
.over-hero .site-header:not(.is-solid) .site-nav a{color:var(--text-on-ink)}
.site-nav a.active::after,.site-nav a:hover::after{content:"";position:absolute;left:0;right:0;bottom:0;height:1.5px;background:var(--teal)}
.site-nav .nav-cta{color:var(--teal-deep);font-weight:600}
.over-hero .site-header:not(.is-solid) .site-nav .nav-cta{color:var(--teal-on-dark)}
.nav-toggle,.nav-toggle-label{display:none}

/* ---------- hero ---------- */
.hero{background:var(--ink-deep);color:var(--text-on-ink);min-height:88vh;display:flex;align-items:center;
  position:relative;overflow:hidden;margin-top:-64px;padding-top:64px}
.hero .container{position:relative;z-index:2;width:100%}
.hero-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:var(--gutter);align-items:center}
.hero-copy{grid-column:1/9}
.hero-motif{grid-column:9/13;align-self:stretch;display:flex;align-items:center;justify-content:center;min-height:340px}
.hero h1{color:var(--paper);margin-bottom:24px}
.hero h1 .lane{color:var(--teal-on-dark)}
.hero .standfirst{color:var(--text-on-ink);font-size:clamp(18px,1.6vw,21px);line-height:1.55;max-width:46ch;margin-bottom:34px}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap}

/* buttons */
.btn{display:inline-block;border-radius:var(--radius);padding:14px 28px;
  font:600 15px/1 var(--sans);letter-spacing:.02em;transition:.15s var(--ease);cursor:pointer}
.btn-primary{background:var(--teal);color:var(--paper)}
.btn-primary:hover{background:var(--teal-deep);transform:translateY(-1px)}
.btn-ghost{background:transparent;color:var(--ink);border:1px solid var(--ink)}
.btn-ghost:hover{background:rgba(25,57,102,.05)}
.btn-ghost--on-dark{color:var(--paper);border-color:rgba(232,237,243,.42)}
.btn-ghost--on-dark:hover{border-color:var(--paper);background:rgba(255,255,255,.06)}

/* ---------- stat band ---------- */
.statband{background:var(--ink);color:var(--text-on-ink);padding-block:46px}
.stats-row{display:flex;gap:0;flex-wrap:wrap}
.stat{flex:1 1 0;min-width:200px;padding:6px 36px;border-left:1px solid var(--line-on-ink)}
.stat:first-child{border-left:none;padding-left:0}
.stat-num{font-family:var(--serif);font-weight:600;font-size:clamp(44px,5vw,60px);line-height:1;color:var(--paper)}
.stat-label{display:block;margin-top:10px;font:600 12px/1.4 var(--sans);text-transform:uppercase;
  letter-spacing:.12em;color:var(--text-on-ink-muted)}
.stat-foot{margin:26px 0 0;font-style:italic;font-size:13px;color:var(--text-on-ink-muted)}

/* ---------- positioning / generic prose block ---------- */
.kicker-quote{font-family:var(--serif);font-weight:500;font-size:clamp(24px,3vw,34px);
  line-height:1.28;color:var(--ink);max-width:24ch}

/* ---------- point of view ---------- */
.pov{display:grid;grid-template-columns:repeat(12,1fr);gap:var(--gutter);align-items:start}
.pov-mark{grid-column:1/4}
.pov-body{grid-column:5/12;max-width:var(--measure)}
.monogram{width:84px;height:84px;border:1px solid var(--line-ink);display:flex;align-items:center;justify-content:center;
  font-family:var(--serif);font-weight:600;font-size:34px;color:var(--ink);background:var(--paper-card)}
.monogram.on-ink{border-color:var(--line-on-ink);background:transparent;color:var(--paper)}
.signature{font-family:var(--serif);font-style:italic;font-size:22px;color:var(--ink);margin-top:18px}
.sig-role{font:500 13px/1.5 var(--sans);color:var(--text-muted);letter-spacing:.01em}

/* ---------- cards ---------- */
.card-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:var(--gutter)}
.card{background:var(--paper-card);border:1px solid var(--line);border-radius:var(--radius);
  padding:32px;transition:border-color .2s,box-shadow .2s;position:relative}
.card:hover{border-color:var(--teal);box-shadow:0 4px 16px rgba(15,37,71,.08)}
.card .num{font:600 12px/1 var(--sans);letter-spacing:.14em;color:var(--text-muted)}
.card .ico{width:38px;height:38px;margin:14px 0 16px;color:var(--teal)}
.card h3{margin:0 0 .35em}
.card p{margin:0;font-size:16px;color:var(--text-body)}
.card .underline{height:1.5px;background:var(--teal);width:0;margin-top:18px;transition:width .2s var(--ease)}
.card:hover .underline{width:48px}

/* difference rows (on ink) */
.diff-rows{display:grid;gap:0;margin-top:8px}
.diff-row{display:grid;grid-template-columns:80px 1fr;gap:24px;padding:28px 0;border-top:1px solid var(--line-on-ink);align-items:baseline}
.diff-row:last-child{border-bottom:1px solid var(--line-on-ink)}
.diff-row .rn{font-family:var(--serif);font-size:30px;color:var(--teal-on-dark)}
.diff-row h3{color:var(--paper);margin:0 0 .25em}
.diff-row p{color:var(--text-on-ink);margin:0}

/* tombstones */
.tomb-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--gutter)}
.tomb{background:var(--paper-card);border:1px solid var(--line);border-top:2px solid var(--teal);
  border-radius:0 0 var(--radius) var(--radius);padding:26px}
.tomb .verb{font:600 11px/1.4 var(--sans);text-transform:uppercase;letter-spacing:.12em;color:var(--text-muted);margin-bottom:10px}
.tomb .deal{font-family:var(--serif);font-size:22px;color:var(--ink);line-height:1.2;margin-bottom:8px}
.tomb .meta{font-size:13px;color:var(--text-muted)}

/* digest band */
.digest-feature{display:grid;grid-template-columns:repeat(12,1fr);gap:var(--gutter);align-items:center}
.digest-feature .lead-card{grid-column:1/8}
.digest-feature .recent{grid-column:8/13}
.recent-item{padding:14px 0;border-top:1px solid var(--line-ink)}
.recent-item:first-child{border-top:none}

/* closing cta */
.closing{text-align:left}
.closing h2{color:var(--paper);max-width:18ch}

/* ---------- footer ---------- */
.site-footer{background:var(--ink-press);color:var(--text-on-ink-muted);border-top:2px solid var(--teal);padding-block:56px 30px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:40px;padding-bottom:32px;border-bottom:1px solid var(--line-on-ink)}
.footer-wordmark{font-family:var(--serif);font-weight:600;font-size:30px;color:var(--paper);letter-spacing:.02em}
.footer-tag{font-family:var(--serif);font-style:italic;color:var(--teal-on-dark);margin-top:6px}
.footer-col h4{font:600 12px/1 var(--sans);text-transform:uppercase;letter-spacing:.12em;color:var(--text-on-ink-muted);margin:0 0 16px}
.footer-col a{display:block;color:var(--text-on-ink);font-size:14px;padding:5px 0}
.footer-col a:hover{color:var(--teal-on-dark)}
.footer-addr{font-size:14px;line-height:1.7;color:var(--text-on-ink-muted);font-style:normal}
.disclosure{font-size:12.5px;line-height:1.7;color:#B4C4D6;max-width:760px;margin:22px 0 4px}
.disclosure a{color:#8FC0CA;text-decoration:underline}
.copyright{font-size:12px;color:var(--text-on-ink-muted);margin:0}

/* ---------- interior page head ---------- */
.page-hero{background:var(--paper);padding-top:calc(64px + clamp(48px,7vw,90px));padding-bottom:clamp(40px,6vw,72px)}
.page-hero.dark{background:var(--ink-deep);margin-top:-64px}/* pull up under the transparent header so light nav text lands on the dark hero, not the white body (base padding-top already reserves the 64px) */
.page-hero.dark h1,.page-hero.dark .lead{color:var(--paper)}
.page-hero h1{max-width:18ch}
.page-hero .lead{max-width:60ch;margin-top:14px}
.prose{max-width:var(--measure)}
.prose h2{margin-top:1.6em}
.prose ul{padding-left:1.1em}
.prose li{margin-bottom:.5em}
.prose .scope-note{font-size:14px;color:var(--text-muted);border-left:2px solid var(--line);padding-left:16px;font-style:italic}

/* numbered service/sector rows on interior pages */
.row-list{border-top:1px solid var(--line);margin-top:8px}
.row{display:grid;grid-template-columns:64px 1fr;gap:24px;padding:30px 0;border-bottom:1px solid var(--line);align-items:start}
.row .rn{font-family:var(--serif);font-size:28px;color:var(--teal-deep)}
.row h3{margin:0 0 .3em}
.row p{margin:0;color:var(--text-body)}

/* bios */
.bio{display:grid;grid-template-columns:96px 1fr;gap:28px;align-items:start;padding:8px 0 26px}
.bio .role{color:var(--teal-deep);font-weight:600;font-size:14px;letter-spacing:.02em;margin:.1em 0 .7em;text-transform:uppercase}
.creds{font-size:13px;color:var(--text-muted);margin-top:10px}

/* contact */
.contact-block{margin:22px 0}
.contact-block .label{display:block;font:600 12px/1 var(--sans);text-transform:uppercase;letter-spacing:.12em;color:var(--text-muted);margin-bottom:8px}

/* ---------- motion ---------- */
.reveal{transition:opacity .4s var(--ease),transform .4s var(--ease)}
.js .reveal{opacity:0;transform:translateY(16px)}
.js .reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important}
  .js .reveal{opacity:1;transform:none}
  html{scroll-behavior:auto}
}

/* ---------- a11y ---------- */
a:focus-visible,.btn:focus-visible,.card:focus-visible,.site-nav a:focus-visible{outline:2px solid var(--teal);outline-offset:3px;border-radius:3px}
.ground-ink :focus-visible,.ground-ink-deep :focus-visible,.hero :focus-visible,.statband :focus-visible,.closing :focus-visible,.site-footer :focus-visible{outline-color:var(--teal-on-dark)}
.skip{position:absolute;left:-9999px}
.skip:focus{left:16px;top:12px;z-index:80;background:var(--paper);color:var(--ink);padding:10px 16px;border-radius:4px;box-shadow:0 2px 12px rgba(15,37,71,.18)}

/* ---------- wide / ultrawide hero ---------- */
@media (min-width:1500px){
  .hero .container{max-width:1560px}
  .hero h1{font-size:clamp(64px,5.2vw,92px)}
  .hero .standfirst{max-width:52ch}
}

/* ---------- responsive ---------- */
@media (max-width:1100px){
  .tomb-grid{grid-template-columns:1fr 1fr}
  .editorial>.col-head,.editorial>.col-body{grid-column:1/-1}
  .col-body{max-width:var(--measure)}
}
@media (max-width:860px){
  .hero-copy,.hero-motif,.editorial>.col-head,.editorial>.col-body,
  .pov-mark,.pov-body,.digest-feature .lead-card,.digest-feature .recent{grid-column:1/-1}
  .hero-motif{display:none}
  .hero{min-height:auto;padding-block:120px 80px}
  .card-grid,.tomb-grid,.footer-grid{grid-template-columns:1fr}
  .stat{border-left:none;padding:14px 0}
  .stats-row{flex-direction:column}
  .bio{grid-template-columns:1fr}
  .site-nav{position:fixed;inset:64px 0 auto 0;flex-direction:column;gap:0;background:var(--paper);
    border-bottom:1px solid var(--line);padding:8px 24px 16px;display:none}
  .over-hero .site-header:not(.is-solid) .site-nav a{color:var(--ink)}
  .nav-toggle:checked~.site-nav{display:flex}
  .site-nav a{padding:13px 0;border-bottom:1px solid var(--line);width:100%}
  .nav-toggle-label{display:block;cursor:pointer;width:26px;height:18px;position:relative}
  .nav-toggle-label span,.nav-toggle-label span::before,.nav-toggle-label span::after{
    content:"";position:absolute;left:0;width:26px;height:2px;background:currentColor;color:var(--ink)}
  .over-hero .site-header:not(.is-solid) .nav-toggle-label{color:var(--paper)}
  .nav-toggle-label span{top:8px}.nav-toggle-label span::before{top:-7px}.nav-toggle-label span::after{top:7px}
}