/* ==========================================================================
   Kalpatharu Foundation International
   Core stylesheet
   Palette derived from the Kalpatharu tree-of-life mark: gold canopy,
   dark bark, warm paper.
   ========================================================================== */

:root{
  --ink:#000000;
  --ink-soft:#1B1713;
  --bark:#4A2E17;
  --bark-mid:#7A5226;
  --gold:#D9A21B;
  --gold-deep:#A9760F;
  --gold-pale:#F2C75C;
  --paper:#F6F1E5;
  --paper-warm:#EFE7D6;
  --paper-edge:#DCD0B6;
  --body:#2E2822;
  --muted:#6A6055;
  --leaf:#3D6B2B;
  --leaf-deep:#2A4C1D;
  --ember:#B3402A;
  --white:#fff;

  --wrap:1200px;
  --wrap-narrow:760px;
  --rule:1px solid var(--paper-edge);

  --f-display:"Fraunces","Iowan Old Style","Palatino Linotype",Georgia,serif;
  --f-body:"Karla","Helvetica Neue",Arial,sans-serif;
}

*,*::before,*::after{box-sizing:border-box}

html{scroll-behavior:smooth;scroll-padding-top:90px}

body{
  margin:0;
  background:var(--paper);
  color:var(--body);
  font-family:var(--f-body);
  font-size:1.0625rem;
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
}

img{max-width:100%;display:block}

a{color:var(--bark);text-decoration-color:rgba(217,162,27,.6);text-underline-offset:3px}
a:hover{color:var(--gold-deep)}

h1,h2,h3,h4{
  font-family:var(--f-display);
  font-weight:600;
  color:var(--bark);
  line-height:1.15;
  margin:0 0 .6em;
  letter-spacing:-.01em;
}
h1{font-size:clamp(2.4rem,5.2vw,3.9rem)}
h2{font-size:clamp(1.9rem,3.6vw,2.7rem)}
h3{font-size:clamp(1.25rem,2vw,1.55rem)}
h4{font-size:1.08rem;font-family:var(--f-body);font-weight:700;color:var(--bark)}
p{margin:0 0 1.15em}
p:last-child{margin-bottom:0}

:focus-visible{outline:3px solid var(--gold);outline-offset:3px}

.skip{position:absolute;left:-9999px;top:0;background:var(--gold);color:var(--ink);padding:.7rem 1.2rem;z-index:999}
.skip:focus{left:0}

/* ---------- layout helpers ---------- */
.wrap{width:min(100% - 2.6rem,var(--wrap));margin-inline:auto}
.wrap-narrow{width:min(100% - 2.6rem,var(--wrap-narrow));margin-inline:auto}
.band{padding:clamp(3.4rem,7vw,6rem) 0}
.band-tight{padding:clamp(2.4rem,4vw,3.4rem) 0}
.band--dark{background:var(--ink);color:#D9CFBF}
.band--dark h1,.band--dark h2,.band--dark h3,.band--dark h4{color:var(--paper)}
.band--dark a{color:var(--gold-pale)}
.band--warm{background:var(--paper-warm)}
.band--leaf{background:var(--leaf-deep);color:#DCE7D2}
.band--leaf h2,.band--leaf h3,.band--leaf h4{color:#fff}
.lede{font-size:clamp(1.12rem,1.6vw,1.3rem);line-height:1.62;color:var(--muted);max-width:62ch}
.band--dark .lede,.band--leaf .lede{color:#C9BEAE}
.band--leaf .lede{color:#C6D6BA}
.measure{max-width:68ch}

/* Section heading with a short gold branch rule beneath */
.head{margin-bottom:2.4rem;max-width:72ch}
.head h2{margin-bottom:.45rem}
.head::after{
  content:"";display:block;width:64px;height:3px;margin-top:1.1rem;
  background:linear-gradient(90deg,var(--gold),rgba(217,162,27,0));
}
.head--center{margin-inline:auto;text-align:center}
.head--center::after{margin-inline:auto;background:linear-gradient(90deg,rgba(217,162,27,0),var(--gold),rgba(217,162,27,0))}

/* ---------- buttons ---------- */
.btn{
  display:inline-block;font-family:var(--f-body);font-weight:700;
  font-size:.98rem;letter-spacing:.01em;
  padding:.85rem 1.7rem;border-radius:2px;border:2px solid transparent;
  text-decoration:none;cursor:pointer;transition:background .18s,color .18s,border-color .18s;
}
.btn-gold{background:var(--gold);color:var(--ink);border-color:var(--gold)}
.btn-gold:hover{background:var(--gold-pale);border-color:var(--gold-pale);color:var(--ink)}
.btn-outline{border-color:currentColor;color:var(--bark);background:transparent}
.btn-outline:hover{background:var(--bark);color:var(--paper);border-color:var(--bark)}
.band--dark .btn-outline,.band--leaf .btn-outline{color:var(--paper)}
.band--dark .btn-outline:hover,.band--leaf .btn-outline:hover{background:var(--paper);color:var(--ink)}
.btn-row{display:flex;flex-wrap:wrap;gap:.9rem;margin-top:1.8rem}

/* ==========================================================================
   Header
   ========================================================================== */
.site-header{
  position:sticky;top:0;z-index:100;background:var(--ink);
  border-bottom:1px solid rgba(217,162,27,.28);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:1.5rem;min-height:78px}
.brand{display:flex;align-items:center;text-decoration:none;flex-shrink:0}
.brand img{height:46px;width:auto}

.nav-toggle{
  display:none;background:none;border:1px solid rgba(217,162,27,.5);
  color:var(--gold);padding:.5rem .8rem;border-radius:2px;
  font-family:var(--f-body);font-size:.9rem;font-weight:700;cursor:pointer;
}

.nav{display:flex;align-items:center;gap:.25rem}
.nav a{
  color:#D6CBB9;text-decoration:none;font-size:.95rem;font-weight:600;
  padding:.65rem .8rem;display:block;border-bottom:2px solid transparent;
}
.nav a:hover,.nav a.current{color:var(--gold);border-bottom-color:var(--gold)}
.nav .btn{margin-left:.7rem;padding:.6rem 1.25rem;border-bottom:0}
.nav .btn:hover{border-bottom:0}

.has-sub{position:relative}
.has-sub > button{
  background:none;border:0;color:#D6CBB9;font-family:var(--f-body);
  font-size:.95rem;font-weight:600;padding:.65rem .8rem;cursor:pointer;
  border-bottom:2px solid transparent;
}
.has-sub > button:hover,.has-sub.open > button,.has-sub > button.current{color:var(--gold);border-bottom-color:var(--gold)}
.sub{
  display:none;position:absolute;top:100%;left:0;min-width:260px;
  background:var(--ink-soft);border:1px solid rgba(217,162,27,.3);
  padding:.5rem 0;box-shadow:0 18px 40px rgba(0,0,0,.35);
}
.has-sub.open .sub{display:block}
.sub a{padding:.6rem 1.2rem;border-bottom:0;font-weight:500}
.sub a:hover{background:rgba(217,162,27,.12);border-bottom:0}

@media (max-width:1040px){
  .nav-toggle{display:block}
  .nav{
    display:none;position:absolute;top:100%;left:0;right:0;
    background:var(--ink-soft);flex-direction:column;align-items:stretch;
    padding:.8rem 1.3rem 1.6rem;gap:0;
    border-bottom:3px solid var(--gold);max-height:80vh;overflow-y:auto;
  }
  .nav.open{display:flex}
  .nav a,.has-sub > button{width:100%;text-align:left;padding:.8rem 0;border-bottom:1px solid rgba(255,255,255,.07)}
  .sub{position:static;display:block;border:0;box-shadow:none;background:transparent;padding:0 0 .4rem .9rem}
  .sub a{font-size:.9rem;padding:.55rem 0}
  .nav .btn{margin:1rem 0 0;text-align:center}
}

/* ==========================================================================
   Hero — home
   ========================================================================== */
.hero{position:relative;background:var(--ink);overflow:hidden}
.hero-slides{position:relative;height:clamp(500px,76vh,760px)}
.hero-slide{
  position:absolute;inset:0;opacity:0;transition:opacity 1.1s ease;
  background-size:cover;background-position:center;
}
.hero-slide.active{opacity:1}
.hero-slide::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(0,0,0,.94) 0%,rgba(0,0,0,.80) 42%,rgba(0,0,0,.30) 100%);
}
.hero-content{
  position:absolute;inset:0;display:flex;align-items:center;z-index:3;
}
.hero-text{max-width:41rem}
.hero h1{color:var(--paper);font-size:clamp(2.3rem,4.9vw,4rem);margin-bottom:1rem}
.hero h1 em{font-style:normal;color:var(--gold-pale)}
.hero p{color:#CFC4B2;font-size:clamp(1.05rem,1.5vw,1.22rem);max-width:38rem}
.hero-mark{
  position:absolute;right:-6%;bottom:-14%;width:min(46vw,540px);
  opacity:.1;z-index:2;pointer-events:none;
}
.hero-dots{position:absolute;left:0;right:0;bottom:1.8rem;z-index:5;display:flex;justify-content:center;gap:.6rem}
.hero-dots button{
  width:36px;height:4px;border:0;padding:0;cursor:pointer;
  background:rgba(255,255,255,.3);transition:background .2s;
}
.hero-dots button.active{background:var(--gold)}

/* Page hero for inner pages */
.page-hero{position:relative;background:var(--ink);padding:clamp(3.6rem,8vw,6.2rem) 0 clamp(3rem,6vw,5rem)}
.page-hero::before{
  content:"";position:absolute;inset:0;opacity:.28;
  background-size:cover;background-position:center;
}
.page-hero > .wrap{position:relative;z-index:2}
.page-hero h1{color:var(--paper);margin-bottom:.8rem}
.page-hero p{color:#CBC0AE;font-size:clamp(1.05rem,1.5vw,1.22rem);max-width:56ch}
.page-hero--leaf{background:var(--leaf-deep)}
.page-hero--ember{background:#4A1C12}
.eyebrow{
  font-family:var(--f-display);font-style:italic;font-size:1.05rem;
  color:var(--gold);margin:0 0 .5rem;
}

/* ---------- trust strip ---------- */
.trust{background:var(--ink-soft);border-top:1px solid rgba(217,162,27,.25);padding:1.6rem 0}
.trust-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:1.4rem}
.trust-item{text-align:center;color:#C9BEAC}
.trust-item b{display:block;font-family:var(--f-display);font-size:1.75rem;color:var(--gold);line-height:1.1}
.trust-item span{font-size:.86rem;line-height:1.35;display:block;margin-top:.25rem}

/* ==========================================================================
   Pillars
   ========================================================================== */
.pillars{display:grid;grid-template-columns:repeat(auto-fit,minmax(275px,1fr));gap:1px;background:var(--paper-edge);border:var(--rule)}
.pillar{background:var(--paper);padding:2rem 1.8rem;display:flex;flex-direction:column}
.pillar:hover{background:#fffdf7}
.pillar-icon{width:34px;height:34px;margin-bottom:1rem;color:var(--gold-deep)}
.pillar h3{font-size:1.22rem;margin-bottom:.5rem}
.pillar p{font-size:.97rem;color:var(--muted);flex:1}
.pillar a{font-weight:700;font-size:.92rem;text-decoration:none;margin-top:1rem;display:inline-block;border-bottom:2px solid var(--gold);padding-bottom:2px;width:fit-content}

/* ==========================================================================
   Feature blocks (alternating image / text)
   ========================================================================== */
.feature{display:grid;grid-template-columns:1fr 1fr;gap:clamp(2rem,4vw,3.6rem);align-items:center}
.feature-media img{width:100%;height:100%;object-fit:cover;aspect-ratio:4/3}
.feature--flip .feature-media{order:2}
@media (max-width:860px){
  .feature{grid-template-columns:1fr}
  .feature--flip .feature-media{order:0}
}

/* ---------- model / flow ---------- */
.flow{display:flex;flex-wrap:wrap;align-items:stretch;gap:0;border:var(--rule);background:var(--paper)}
.flow-step{flex:1 1 180px;padding:1.6rem 1.4rem;border-right:var(--rule);position:relative}
.flow-step:last-child{border-right:0;background:rgba(217,162,27,.1)}
.flow-step h4{margin-bottom:.35rem;font-family:var(--f-display);font-size:1.18rem;font-weight:600}
.flow-step p{font-size:.92rem;color:var(--muted);margin:0}
@media (max-width:760px){.flow-step{flex:1 1 100%;border-right:0;border-bottom:var(--rule)}}

/* ==========================================================================
   Numbered sequence (only used for genuine step-by-step processes)
   ========================================================================== */
.steps{list-style:none;margin:0;padding:0;position:relative}
.steps::before{content:"";position:absolute;left:21px;top:14px;bottom:14px;width:2px;background:linear-gradient(180deg,var(--gold),rgba(217,162,27,.15))}
.step{position:relative;padding:0 0 2.1rem 4.2rem}
.step:last-child{padding-bottom:0}
.step-num{
  position:absolute;left:0;top:-2px;width:44px;height:44px;border-radius:50%;
  background:var(--gold);color:var(--ink);display:grid;place-items:center;
  font-family:var(--f-display);font-weight:700;font-size:1.1rem;
}
.band--leaf .step-num{background:var(--gold);color:var(--leaf-deep)}
.band--leaf .steps::before{background:linear-gradient(180deg,var(--gold),rgba(217,162,27,.15))}
.step h3{font-size:1.2rem;margin-bottom:.3rem}
.step p{font-size:.98rem;margin-bottom:0}
.band--leaf .step p{color:#C6D6BA}

/* ==========================================================================
   Stats
   ========================================================================== */
.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:1px;background:rgba(217,162,27,.3)}
.stat{background:var(--ink);padding:2rem 1.4rem;text-align:center}
.band--leaf .stat{background:var(--leaf-deep)}
.band--warm .stat,.band--paper .stat{background:var(--paper)}
.stat b{display:block;font-family:var(--f-display);font-size:clamp(2.2rem,4vw,3rem);color:var(--gold);line-height:1}
.stat span{display:block;margin-top:.5rem;font-size:.92rem;color:#C0B5A3;line-height:1.4}
.band--warm .stat span,.band--paper .stat span{color:var(--muted)}

/* ==========================================================================
   Cards / lists
   ========================================================================== */
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:1.6rem}
.card{background:var(--white);border:var(--rule);border-top:3px solid var(--gold);padding:1.7rem 1.6rem}
.card h3{font-size:1.18rem;margin-bottom:.5rem}
.card p{font-size:.97rem;color:var(--muted)}
.card--leaf{border-top-color:var(--leaf)}
.card--ember{border-top-color:var(--ember)}

.ticks{list-style:none;margin:0;padding:0}
.ticks li{position:relative;padding:0 0 .72rem 1.7rem;font-size:1rem}
.ticks li::before{
  content:"";position:absolute;left:0;top:.62em;width:8px;height:8px;
  background:var(--gold);transform:rotate(45deg);
}
.band--dark .ticks li,.band--leaf .ticks li{color:#CCC1B0}
.band--leaf .ticks li{color:#C6D6BA}

.two-col{display:grid;grid-template-columns:repeat(auto-fit,minmax(290px,1fr));gap:clamp(1.6rem,3vw,3rem)}

dl.facts{margin:0;display:grid;grid-template-columns:auto 1fr;gap:.55rem 1.4rem;font-size:.98rem}
dl.facts dt{font-weight:700;color:var(--bark)}
dl.facts dd{margin:0;color:var(--muted)}

.note{
  border-left:3px solid var(--gold);background:rgba(217,162,27,.09);
  padding:1.1rem 1.3rem;font-size:.96rem;color:var(--muted);
}
.band--dark .note,.band--leaf .note{background:rgba(217,162,27,.11);color:#C6BBA9}

.pull{
  font-family:var(--f-display);font-size:clamp(1.35rem,2.6vw,1.9rem);
  line-height:1.4;color:var(--bark);border-left:4px solid var(--gold);
  padding-left:1.6rem;margin:2.2rem 0;max-width:34ch;
}
.band--dark .pull,.band--leaf .pull{color:var(--paper)}

/* ==========================================================================
   Gallery
   ========================================================================== */
.gal{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:.7rem}
.gal figure{margin:0;position:relative;overflow:hidden;background:var(--paper-warm)}
.gal img{width:100%;aspect-ratio:4/3;object-fit:cover;transition:transform .35s ease}
.gal button{display:block;padding:0;border:0;background:none;cursor:pointer;width:100%}
.gal button:hover img{transform:scale(1.04)}
.gal figcaption{font-size:.84rem;color:var(--muted);padding:.5rem .1rem 0;text-align:left}

.gal-filter{display:flex;flex-wrap:wrap;gap:.5rem;margin-bottom:2rem}
.gal-filter button{
  font-family:var(--f-body);font-size:.9rem;font-weight:600;
  padding:.5rem 1.1rem;border:1px solid var(--paper-edge);background:var(--white);
  color:var(--muted);cursor:pointer;border-radius:2px;
}
.gal-filter button.active{background:var(--bark);color:var(--paper);border-color:var(--bark)}

.lightbox{
  position:fixed;inset:0;background:rgba(0,0,0,.95);z-index:200;
  display:none;align-items:center;justify-content:center;padding:2rem;
}
.lightbox.open{display:flex}
.lightbox img{max-width:min(1100px,92vw);max-height:84vh;object-fit:contain}
.lightbox-close{
  position:absolute;top:1.2rem;right:1.4rem;background:none;border:1px solid rgba(255,255,255,.4);
  color:#fff;font-size:1.4rem;line-height:1;padding:.35rem .75rem;cursor:pointer;
}
.lightbox-cap{position:absolute;bottom:1.6rem;left:0;right:0;text-align:center;color:#C5BAA8;font-size:.92rem}

/* ==========================================================================
   Timeline
   ========================================================================== */
.tl{list-style:none;margin:0;padding:0;position:relative}
.tl::before{content:"";position:absolute;left:0;top:10px;bottom:10px;width:2px;background:var(--paper-edge)}
.tl li{position:relative;padding:0 0 2.2rem 2.2rem}
.tl li::before{content:"";position:absolute;left:-6px;top:8px;width:14px;height:14px;background:var(--gold);border:3px solid var(--paper);border-radius:50%}
.band--warm .tl li::before{border-color:var(--paper-warm)}
.tl b{display:block;font-family:var(--f-display);font-size:1.28rem;color:var(--bark)}
.tl span{display:block;font-size:.88rem;color:var(--gold-deep);font-weight:700;margin-bottom:.3rem}
.tl p{font-size:.98rem;color:var(--muted);margin:.3rem 0 0}

/* ==========================================================================
   Founder
   ========================================================================== */
.founder-hero{display:grid;grid-template-columns:300px 1fr;gap:clamp(1.8rem,4vw,3.4rem);align-items:center}
.founder-hero img{border:4px solid var(--gold);width:100%}
@media (max-width:760px){.founder-hero{grid-template-columns:1fr}.founder-hero img{max-width:260px}}
.sig{font-family:var(--f-display);font-style:italic;font-size:1.35rem;color:var(--bark);margin-top:1.6rem}
.sig small{display:block;font-family:var(--f-body);font-style:normal;font-size:.9rem;color:var(--muted);margin-top:.2rem}

/* ==========================================================================
   Forms
   ========================================================================== */
.form{display:grid;gap:1.1rem}
.field label{display:block;font-weight:700;font-size:.92rem;color:var(--bark);margin-bottom:.35rem}
.field input,.field select,.field textarea{
  width:100%;padding:.8rem .9rem;border:1px solid var(--paper-edge);
  background:var(--white);font-family:var(--f-body);font-size:1rem;color:var(--body);border-radius:2px;
}
.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--gold);outline:2px solid rgba(217,162,27,.28);outline-offset:0}
.field textarea{min-height:150px;resize:vertical}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:1.1rem}
@media (max-width:640px){.form-row{grid-template-columns:1fr}}

/* ==========================================================================
   Footer
   ========================================================================== */
.site-footer{background:var(--ink);color:#A79C8C;padding:clamp(3rem,5vw,4.2rem) 0 0;font-size:.95rem}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:2.4rem}
@media (max-width:900px){.footer-grid{grid-template-columns:1fr 1fr}}
@media (max-width:560px){.footer-grid{grid-template-columns:1fr}}
.site-footer img.f-logo{height:58px;width:auto;margin-bottom:1.1rem}
.site-footer h4{color:var(--gold);font-family:var(--f-display);font-size:1.05rem;margin-bottom:.9rem;font-weight:600}
.site-footer ul{list-style:none;margin:0;padding:0}
.site-footer li{margin-bottom:.5rem}
.site-footer a{color:#A79C8C;text-decoration:none}
.site-footer a:hover{color:var(--gold)}
.site-footer p{margin-bottom:.8rem;line-height:1.6}
.ein{display:inline-block;border:1px solid rgba(217,162,27,.35);padding:.45rem .8rem;font-size:.84rem;color:#C0B5A3;margin-top:.6rem}
.footer-base{
  border-top:1px solid rgba(255,255,255,.1);margin-top:2.8rem;padding:1.4rem 0;
  display:flex;flex-wrap:wrap;gap:.8rem;justify-content:space-between;font-size:.87rem;
}

/* ==========================================================================
   CTA band
   ========================================================================== */
.cta-band{background:var(--gold);color:var(--ink);text-align:center}
.cta-band h2{color:var(--ink)}
.cta-band p{color:#4A3A12;max-width:56ch;margin-inline:auto;font-size:1.08rem}
.cta-band .btn-outline{color:var(--ink);border-color:var(--ink)}
.cta-band .btn-outline:hover{background:var(--ink);color:var(--gold)}
.cta-band .btn-dark{background:var(--ink);color:var(--gold);border-color:var(--ink)}
.cta-band .btn-dark:hover{background:var(--ink-soft);border-color:var(--ink-soft)}
.cta-band .btn-row{justify-content:center}

/* ==========================================================================
   Utility
   ========================================================================== */
.mt-0{margin-top:0}.mt-1{margin-top:1rem}.mt-2{margin-top:2rem}.mt-3{margin-top:3rem}
.mb-2{margin-bottom:2rem}
.center{text-align:center}
.small{font-size:.9rem}
.src{font-size:.82rem;color:var(--muted);font-style:italic}
.band--dark .src,.band--leaf .src{color:#8D8273}

@media (prefers-reduced-motion:reduce){
  *{animation-duration:.01ms !important;transition-duration:.01ms !important;scroll-behavior:auto !important}
  .hero-slide{transition:none}
}

/* ---------- Cloudflare Turnstile widget ---------- */
.cf-turnstile{margin:.2rem 0 .3rem;min-height:65px}
.cf-turnstile iframe{max-width:100%}

/* ---------- contact form states ---------- */
.btn:disabled{opacity:.45;cursor:not-allowed}
.btn-gold:disabled:hover{background:var(--gold);border-color:var(--gold)}
.form-status{
  font-size:.9rem;color:var(--muted);margin:.7rem 0 0;min-height:1.2em;
}
.form-result{
  border:1px solid var(--paper-edge);border-left:4px solid var(--gold);
  background:#fff;padding:1.5rem 1.6rem;margin-top:.5rem;
}
.form-result:focus{outline:3px solid var(--gold);outline-offset:3px}
.form-result h3{margin-bottom:.5rem}
.form-result p{margin:0;color:var(--muted)}
.form-result--ok{border-left-color:var(--leaf)}
.form-result--bad{border-left-color:var(--ember)}
#turnstile-widget{margin:.2rem 0 .1rem;min-height:65px}
#turnstile-widget iframe{max-width:100%}

/* ==========================================================================
   Homepage model diagram — the Kalpatharu tree
   ========================================================================== */
.tree-figure{display:grid;grid-template-columns:1.05fr .95fr;gap:clamp(1.6rem,3vw,3rem);align-items:center}
@media (max-width:900px){.tree-figure{grid-template-columns:1fr}}
.tree-svg{width:100%;height:auto;display:block;max-width:720px;margin-inline:auto}

.tz{cursor:pointer}
.tz:focus{outline:none}
.tz-art{transition:opacity .25s ease,transform .25s ease;transform-origin:600px 360px}
.tz-glow{fill:rgba(217,162,27,0);transition:fill .25s ease}
.tz-ground{stroke:rgba(217,162,27,.3);stroke-width:2;stroke-dasharray:3 7}

/* labels sit in clear space, joined to the artwork by a leader line */
.tz-lead{stroke:rgba(217,162,27,.4);stroke-width:1.5;transition:stroke .25s ease}
.tz-label{fill:var(--paper);font-family:var(--f-display);font-size:24px;font-weight:700;pointer-events:none}
.tz-sub{fill:rgba(240,232,218,.62);font-family:var(--f-body);font-size:13px;pointer-events:none;letter-spacing:.02em}
.tz-who{fill:rgba(217,162,27,.68);font-family:var(--f-body);font-size:11.5px;font-style:italic;pointer-events:none}

.tz:hover .tz-art,.tz:focus-visible .tz-art,.tz.on .tz-art{transform:scale(1.03)}
.tz:hover .tz-glow,.tz:focus-visible .tz-glow,.tz.on .tz-glow{fill:rgba(217,162,27,.16)}
.tz:hover .tz-lead,.tz:focus-visible .tz-lead,.tz.on .tz-lead{stroke:var(--gold)}
.tz:focus-visible .tz-label,.tz.on .tz-label{fill:var(--gold-pale)}
.tree-svg.has-active .tz:not(.on) .tz-art{opacity:.34}
.tree-svg.has-active .tz:not(.on) .tz-label{fill:rgba(240,232,218,.55)}
.tree-svg.has-active .tz:not(.on) .tz-lead{stroke:rgba(217,162,27,.18)}

.tree-panel{border-left:3px solid var(--gold);padding:0 0 0 1.4rem;margin-bottom:1.8rem}
.tree-panel:last-child{margin-bottom:0}
.tree-panel h3{font-size:1.24rem;margin-bottom:.45rem}
.tree-panel p{font-size:.99rem}
.tree-panels.js .tree-panel{display:none}
.tree-panels.js .tree-panel.on{display:block}

/* ---------- external nav link ---------- */
.nav-ext .ext{font-size:.8em;margin-left:.25rem;opacity:.75}
.sr{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}

/* upward flow: roots feed the trunk, the trunk feeds the canopy */
.tz-flow{
  stroke:#FBE9A8;stroke-width:3;stroke-linecap:round;
  stroke-dasharray:26 900;stroke-dashoffset:926;
  opacity:.75;pointer-events:none;
  animation:sap 7s linear infinite;
}
@keyframes sap{
  0%   {stroke-dashoffset:926;opacity:0}
  12%  {opacity:.8}
  88%  {opacity:.8}
  100% {stroke-dashoffset:0;opacity:0}
}
@media (prefers-reduced-motion:reduce){.tz-flow{animation:none;opacity:0}}

/* panel detail */
.tp-who{
  font-size:.78rem;letter-spacing:.06em;text-transform:uppercase;
  color:var(--gold);margin:0 0 .4rem;font-weight:700;
}
.tp-flow{display:grid;grid-template-columns:auto 1fr;gap:.35rem 1rem;margin:1rem 0 1.1rem;font-size:.93rem}
.tp-flow dt{font-weight:700;color:var(--gold-pale);white-space:nowrap}
.tp-flow dd{margin:0;color:#BCB1A0}
.tree-panel--whole{border-left-color:var(--gold-pale)}
.tp-lead{font-family:var(--f-display);font-size:1.18rem;line-height:1.45;color:var(--paper)}
.tree-controls{margin-top:1.4rem}
.tree-whole{
  font-family:var(--f-body);font-weight:700;font-size:.9rem;cursor:pointer;
  background:transparent;color:var(--gold);border:1px solid rgba(217,162,27,.5);
  padding:.55rem 1.2rem;border-radius:2px;
}
.tree-whole:hover,.tree-whole.on{background:var(--gold);color:var(--ink);border-color:var(--gold)}