/* ============================================================
   BIODIVERSITY — shared stylesheet  (v2: editorial / institutional)
   Brand: teal #184143 / ink #050606 / lime #AAC93B / sand #FCE285
   Type: Spectral (display serif) + Hanken Grotesk (body/labels)
   ============================================================ */

:root{
  --ink:#0c1413;
  --teal:#184143;
  --teal-700:#102d2f;
  --teal-300:#5c8587;
  --teal-tint:#eef3f1;
  --paper:#fcfbf8;
  --white:#ffffff;
  --lime:#aac93b;
  --lime-700:#5f7417;
  --sand:#fce285;
  --muted:#566160;
  --ink-soft:#26302f;
  --line:rgba(16,45,47,.16);
  --line-soft:rgba(16,45,47,.09);

  --maxw:1180px;
  --gutter:clamp(22px,5vw,64px);
  --radius:5px;

  --display:"Spectral",Georgia,"Times New Roman",serif;
  --body:"Hanken Grotesk",system-ui,-apple-system,sans-serif;
}

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{animation:none!important;transition:none!important}}

body{
  font-family:var(--body);
  color:var(--ink);
  background:var(--paper);
  line-height:1.72;
  font-size:17px;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}

img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}

h1,h2,h3,h4{font-family:var(--display);font-weight:500;line-height:1.1;letter-spacing:-.012em;color:var(--teal);font-optical-sizing:auto}
h1{font-size:clamp(2.05rem,4.1vw,3.2rem);line-height:1.14;letter-spacing:-.018em}
h2{font-size:clamp(1.7rem,3.5vw,2.6rem)}
h3{font-size:1.26rem;font-weight:600}
p{max-width:65ch}

.wrap{max-width:var(--maxw);margin-inline:auto;padding-inline:var(--gutter)}
.section{padding-block:clamp(60px,8.5vw,118px)}
.section--tint{background:var(--teal-tint)}
.section--ink{background:var(--teal);color:var(--white)}
.section--ink h2,.section--ink h3{color:var(--white)}
.section--ink p{color:rgba(255,255,255,.84)}
.section + .section:not(.section--ink):not(.section--tint){border-top:1px solid var(--line-soft)}

/* eyebrow with hairline tick */
.eyebrow{
  font-family:var(--body);font-size:.72rem;font-weight:600;
  letter-spacing:.2em;text-transform:uppercase;color:var(--lime-700);
  display:flex;align-items:center;gap:12px;margin-bottom:20px;
}
.eyebrow::before{content:"";width:26px;height:1.5px;background:currentColor;opacity:.7;display:inline-block}
.section--ink .eyebrow{color:var(--lime)}
.lead{font-family:var(--display);font-weight:400;font-size:clamp(1.18rem,1.9vw,1.5rem);line-height:1.5;color:var(--ink-soft);max-width:54ch;letter-spacing:-.01em}
.section--ink .lead{color:rgba(255,255,255,.9)}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;gap:.55em;
  font-family:var(--body);font-weight:600;font-size:.98rem;letter-spacing:.01em;
  padding:.92em 1.6em;border-radius:var(--radius);
  border:1.5px solid transparent;cursor:pointer;
  transition:transform .16s ease,background .2s ease,border-color .2s ease,color .2s ease;
}
.btn:hover{transform:translateY(-2px)}
.btn--primary{background:var(--lime);color:#1c2407;border-color:var(--lime)}
.btn--primary:hover{background:#b9d752}
.btn--ghost{background:transparent;color:var(--white);border-color:rgba(255,255,255,.42)}
.btn--ghost:hover{border-color:var(--white);background:rgba(255,255,255,.07)}
.btn--dark{background:var(--teal);color:var(--white);border-color:var(--teal)}
.btn--dark:hover{background:var(--teal-700)}
.arrow{font-family:var(--body);font-weight:400}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:50;background:var(--teal);border-bottom:1px solid rgba(255,255,255,.10)}
.nav{display:flex;align-items:center;justify-content:space-between;gap:24px;height:84px}
.brand{display:flex;align-items:center}
.brand img{height:56px;width:auto}
.nav-links{display:flex;align-items:center;gap:30px;list-style:none}
.nav-links a{color:rgba(255,255,255,.84);font-size:.95rem;font-weight:500;padding:7px 0;border-bottom:1.5px solid transparent;transition:color .2s,border-color .2s}
.nav-links a:hover,.nav-links a[aria-current="page"]{color:var(--white);border-color:var(--lime)}
.nav-right{display:flex;align-items:center;gap:20px}
.lang{display:flex;gap:7px;align-items:center;font-size:.84rem;font-weight:600;letter-spacing:.04em}
.lang a{color:rgba(255,255,255,.55);padding:2px 3px}
.lang a[aria-current="true"]{color:var(--white);border-bottom:1.5px solid var(--lime)}
.nav-cta{padding:.62em 1.15em;font-size:.9rem}
.menu-toggle{display:none;background:none;border:1px solid rgba(255,255,255,.4);border-radius:var(--radius);color:#fff;width:42px;height:42px;font-size:1.4rem;cursor:pointer}

/* dropdown */
.has-sub{position:relative}
.submenu{position:absolute;top:100%;left:50%;transform:translateX(-50%) translateY(8px);background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:8px;min-width:290px;list-style:none;opacity:0;visibility:hidden;transition:opacity .18s,transform .18s;box-shadow:0 22px 48px rgba(12,20,19,.16)}
.has-sub:hover .submenu,.has-sub:focus-within .submenu{opacity:1;visibility:visible;transform:translateX(-50%) translateY(6px)}
.submenu a{display:block;color:var(--ink);border:0;padding:10px 13px;border-radius:4px;font-weight:400;font-size:.94rem}
.submenu a:hover{background:var(--teal-tint);color:var(--teal)}

/* ---------- hero ---------- */
.hero{position:relative;background:var(--teal);color:var(--white);overflow:hidden}
.hero-contours{position:absolute;inset:0;width:100%;height:100%;opacity:.55;pointer-events:none}
.hero-inner{position:relative;padding-block:clamp(76px,12vw,150px);max-width:60ch}
.hero h1{color:var(--white)}
.hero .lead{margin-top:24px;color:rgba(255,255,255,.9)}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:40px}

/* ---------- credibility strip ---------- */
.creds{background:var(--paper);border-bottom:1px solid var(--line-soft)}
.creds-row{display:flex;align-items:center;gap:28px;flex-wrap:wrap;padding-block:22px}
.creds-label{font-size:.72rem;font-weight:600;letter-spacing:.18em;text-transform:uppercase;color:var(--muted)}
.creds-list{font-family:var(--display);font-size:1.02rem;color:var(--teal);font-weight:500;letter-spacing:.01em}

/* ---------- grids & cards ---------- */
.grid{display:grid;gap:1px;background:var(--line-soft)}
.grid-2{grid-template-columns:repeat(2,1fr)}
.grid-3{grid-template-columns:repeat(3,1fr)}
.section-head{max-width:62ch;margin-bottom:50px}

/* editorial cards: hairline-joined, square, refined hover */
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:0;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:var(--white)}
.card{
  background:var(--white);padding:34px 30px 30px;position:relative;
  border-right:1px solid var(--line-soft);border-bottom:1px solid var(--line-soft);
  transition:background .2s ease;display:flex;flex-direction:column;
}
.card::before{content:"";position:absolute;left:0;top:0;height:3px;width:0;background:var(--lime);transition:width .25s ease}
.card:hover{background:var(--teal-tint)}
.card:hover::before{width:100%}
.card h3{margin-bottom:10px}
.card p{color:var(--muted);font-size:.97rem;margin-bottom:auto}
.card .more{margin-top:20px;font-weight:600;color:var(--lime-700);font-size:.92rem;letter-spacing:.02em}

/* pillars */
.pillar{padding-top:26px;border-top:2px solid var(--teal)}
.section--ink .pillar{border-top-color:var(--lime)}
.pillar h3{color:var(--teal);margin-bottom:10px}
.section--ink .pillar h3{color:var(--white)}
.pillar p{color:var(--muted);font-size:.98rem}
.section--ink .pillar p{color:rgba(255,255,255,.8)}
.pillar-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:34px;background:none}

/* ---------- stats ---------- */
.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:0;margin-top:8px;border-top:1px solid rgba(255,255,255,.16)}
.stat{padding:34px 0 0}
.stat + .stat{border-left:1px solid rgba(255,255,255,.16);padding-left:30px}
.stat .num{font-family:var(--display);font-weight:600;font-size:clamp(2.6rem,5.4vw,3.8rem);color:var(--lime);line-height:1}
.stat .lbl{margin-top:10px;color:rgba(255,255,255,.84);font-size:1rem}

/* ---------- standards tags ---------- */
.std-tags{display:flex;flex-wrap:wrap;gap:10px;margin:24px 0 30px}
.std-tag{font-size:.88rem;font-weight:500;border:1px solid rgba(255,255,255,.3);border-radius:999px;padding:8px 16px;color:var(--white)}
.section:not(.section--ink) .std-tag{border-color:var(--line);color:var(--teal);background:var(--white)}

/* ---------- FAQ ---------- */
.faq{max-width:800px}
.faq details{border-bottom:1px solid var(--line);padding:4px 0}
.faq summary{list-style:none;cursor:pointer;padding:20px 44px 20px 0;position:relative;font-family:var(--display);font-weight:500;font-size:1.16rem;color:var(--teal)}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";position:absolute;right:6px;top:17px;font-size:1.5rem;color:var(--lime-700);transition:transform .2s;font-family:var(--body)}
.faq details[open] summary::after{transform:rotate(45deg)}
.faq details p{color:var(--muted);padding:0 44px 22px 0}

/* ---------- prose (inner pages) ---------- */
.prose{max-width:768px}
.prose h2{margin-top:52px;margin-bottom:18px}
.prose h3{margin-top:34px;margin-bottom:10px}
.prose p{margin-bottom:16px;color:var(--ink-soft)}
.prose ul{margin:0 0 18px 0;padding-left:0;list-style:none}
.prose ul li{position:relative;padding-left:28px;margin-bottom:11px;color:var(--ink-soft)}
.prose ul li::before{content:"";position:absolute;left:4px;top:12px;width:8px;height:8px;background:var(--lime);border-radius:2px}
.prose a{color:var(--teal);border-bottom:1.5px solid var(--lime);font-weight:500}
.prose a:hover{background:var(--teal-tint)}
.note{font-size:.85rem;color:var(--muted);background:var(--teal-tint);border-left:3px solid var(--lime);padding:8px 14px;border-radius:0 4px 4px 0;display:inline-block;margin:4px 0}

/* ---------- contact ---------- */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:54px;align-items:start}
.contact-list{list-style:none}
.contact-list li{display:flex;gap:14px;padding:16px 0;border-bottom:1px solid var(--line-soft);align-items:flex-start}
.contact-list .k{font-family:var(--display);font-weight:500;color:var(--teal);min-width:88px}
.field{margin-bottom:16px}
.field label{display:block;font-weight:600;font-size:.88rem;color:var(--teal);margin-bottom:7px;letter-spacing:.01em}
.field input,.field select,.field textarea{width:100%;font-family:var(--body);font-size:1rem;padding:12px 14px;border:1px solid var(--line);border-radius:var(--radius);background:var(--white);color:var(--ink)}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--teal);box-shadow:0 0 0 3px rgba(170,201,59,.28)}
.consent{display:flex;gap:10px;align-items:flex-start;font-size:.92rem;color:var(--muted)}
.consent input{margin-top:5px}

/* ---------- footer ---------- */
.site-footer{background:var(--teal);color:rgba(255,255,255,.78);padding-block:70px 30px}
.footer-top{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:40px}
.site-footer img.flogo{height:74px;width:auto;margin-bottom:24px}
.site-footer h4{font-family:var(--body);font-size:.74rem;letter-spacing:.16em;text-transform:uppercase;color:var(--lime);margin-bottom:18px;font-weight:600}
.site-footer ul{list-style:none}
.site-footer li{margin-bottom:10px;font-size:.95rem}
.site-footer a:hover{color:var(--white)}
.footer-about{font-family:var(--display);font-size:1rem;max-width:32ch;color:rgba(255,255,255,.74);line-height:1.5}
.footer-bottom{display:flex;flex-wrap:wrap;justify-content:space-between;gap:14px;align-items:center;margin-top:52px;padding-top:24px;border-top:1px solid rgba(255,255,255,.14);font-size:.85rem}
.footer-bottom nav{display:flex;gap:20px;flex-wrap:wrap}

.skip{position:absolute;left:-9999px}
.skip:focus{position:fixed;left:16px;top:16px;background:#fff;color:var(--teal);padding:10px 16px;border-radius:var(--radius);z-index:100}
:focus-visible{outline:2px solid var(--lime);outline-offset:2px;border-radius:2px}

/* ---------- responsive ---------- */
@media (max-width:880px){
  .footer-top{grid-template-columns:1fr 1fr}
  .cards{grid-template-columns:1fr 1fr}
  .pillar-grid{grid-template-columns:1fr}
}
@media (max-width:720px){
  .menu-toggle{display:block}
  .nav-links{position:absolute;top:84px;left:0;right:0;background:var(--teal);flex-direction:column;align-items:flex-start;gap:0;padding:8px var(--gutter) 20px;border-bottom:1px solid rgba(255,255,255,.1);display:none}
  .nav-links.open{display:flex}
  .nav-links li{width:100%}
  .nav-links a{display:block;width:100%;padding:14px 0;border-bottom:1px solid rgba(255,255,255,.08)}
  .has-sub .submenu{position:static;transform:none;opacity:1;visibility:visible;box-shadow:none;border:0;background:transparent;padding:0 0 8px 14px;min-width:0}
  .submenu a{color:rgba(255,255,255,.8)}
  .submenu a:hover{background:transparent;color:#fff}
  .nav-right .nav-cta{display:none}
  .cards{grid-template-columns:1fr}
  .stats{grid-template-columns:1fr;gap:0}
  .stat + .stat{border-left:0;border-top:1px solid rgba(255,255,255,.16);padding-left:0}
  .footer-top{grid-template-columns:1fr}
  .creds-row{gap:12px}
}

/* ---- hero two-column + animated scene ---- */
.hero-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:clamp(28px,5vw,60px);align-items:center;max-width:var(--maxw)}
.hero-copy{max-width:40ch}
.hero-scene{position:relative;width:100%;aspect-ratio:4/3.1;min-height:280px}
.hero-scene svg{width:100%;height:100%;overflow:visible;display:block}
@keyframes spin{to{transform:rotate(360deg)}}
.rotor{transform-box:fill-box;transform-origin:center}
.r1{animation:spin 10s linear infinite}
.r2{animation:spin 14s linear infinite}
.r3{animation:spin 8s linear infinite}
.bird{transform-box:fill-box}
@keyframes fly1{0%{transform:translate(-50px,58px)}50%{transform:translate(190px,40px)}100%{transform:translate(440px,54px)}}
@keyframes fly2{0%{transform:translate(-70px,98px)}50%{transform:translate(180px,72px)}100%{transform:translate(440px,88px)}}
@keyframes fly3{0%{transform:translate(-40px,40px)}50%{transform:translate(205px,32px)}100%{transform:translate(440px,72px)}}
.b1{animation:fly1 17s linear infinite}
.b2{animation:fly2 23s linear infinite 5s}
.b3{animation:fly3 20s linear infinite 10s}
.bat{transform-box:fill-box}
@keyframes flutter1{0%,100%{transform:translate(0,0)}25%{transform:translate(9px,-6px)}50%{transform:translate(20px,3px)}75%{transform:translate(7px,9px)}}
@keyframes flutter2{0%,100%{transform:translate(0,0)}25%{transform:translate(-8px,-7px)}50%{transform:translate(-18px,2px)}75%{transform:translate(-6px,8px)}}
.bt1{animation:flutter1 3s ease-in-out infinite}
.bt2{animation:flutter2 3.6s ease-in-out infinite}
@media(max-width:920px){.hero-grid{grid-template-columns:1fr}.hero-scene{display:none}}

/* ---- premium hero: full-bleed animated topographic canvas ---- */
.hero-home{position:relative;overflow:hidden}
.hero-canvas{position:absolute;inset:0;width:100%;height:100%;display:block;z-index:0}
.hero-scrim{position:absolute;inset:0;z-index:1;pointer-events:none;
  background:linear-gradient(95deg,rgba(16,45,47,.93) 0%,rgba(16,45,47,.87) 44%,rgba(16,45,47,.52) 64%,rgba(16,45,47,.16) 88%,rgba(16,45,47,.10) 100%)}
.hero-home-inner{position:relative;z-index:2;max-width:50ch}
@media(max-width:720px){.hero-scrim{background:linear-gradient(180deg,rgba(16,45,47,.88),rgba(16,45,47,.70))}}

/* de-crowd the hero: lighter sans lead, more breathing room */
.hero-home-inner{max-width:660px}
.hero-home .lead{font-family:var(--body);font-weight:400;font-size:clamp(1.05rem,1.3vw,1.2rem);line-height:1.62;letter-spacing:0;margin-top:30px;max-width:none;color:rgba(255,255,255,.9)}
.hero-home .hero-cta{margin-top:36px}

/* buttons inside .prose must keep their own colours (prose link rule was hiding text) */
.prose a.btn{border-bottom:0}
.prose a.btn.btn--dark{background:var(--teal);color:#fff}
.prose a.btn.btn--dark:hover{background:var(--teal-700);color:#fff}
.prose a.btn.btn--primary{background:var(--lime);color:#1c2407}
.prose a.btn.btn--primary:hover{background:#b9d752;color:#1c2407}

/* ---- service-card icons ---- */
.card-ico{display:block;width:30px;height:30px;color:var(--lime-700);margin-bottom:14px}
.card-ico svg{width:100%;height:100%;display:block}

/* ---- "how we work" process ---- */
.process{display:grid;grid-template-columns:repeat(4,1fr);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:var(--white)}
.step{position:relative;padding:30px 28px 28px;border-right:1px solid var(--line-soft)}
.step:last-child{border-right:0}
.step::before{content:"";position:absolute;left:0;top:0;height:3px;width:42px;background:var(--lime)}
.step .n{font-family:var(--display);font-size:.95rem;font-weight:600;color:var(--lime-700);letter-spacing:.06em}
.step h3{margin:14px 0 8px;font-size:1.14rem}
.step p{color:var(--muted);font-size:.95rem}
@media(max-width:860px){.process{grid-template-columns:1fr 1fr}.step:nth-child(2){border-right:0}}
@media(max-width:560px){.process{grid-template-columns:1fr}.step{border-right:0;border-bottom:1px solid var(--line-soft)}.step:last-child{border-bottom:0}}

/* ---- project vignettes ---- */
.vigrid{display:grid;grid-template-columns:1fr 1fr;gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
.vig{background:var(--white);padding:24px 26px}
.vig-tag{display:block;font-family:var(--display);font-size:.78rem;letter-spacing:.05em;color:var(--lime-700);margin-bottom:9px}
.vig p{color:var(--muted);font-size:.96rem;margin:0;line-height:1.6}
.vig:last-child:nth-child(odd){grid-column:1 / -1}
@media(max-width:680px){.vigrid{grid-template-columns:1fr}.vig:last-child:nth-child(odd){grid-column:auto}}

/* ---- photos ---- */
.prose img{max-width:100%;height:auto;border-radius:var(--radius)}
.photo-portrait{float:right;width:300px;margin:4px 0 18px 30px}
.photo-portrait img{display:block;width:100%;border-radius:var(--radius)}
.photo-portrait figcaption{font-size:.82rem;color:var(--muted);margin-top:8px;font-family:var(--display)}
@media(max-width:620px){.photo-portrait{float:none;width:100%;margin:0 0 22px}}
.photoband{position:relative;margin:0}
.photoband img{display:block;width:100%;height:clamp(240px,36vw,440px);object-fit:cover}
.photoband::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(16,45,47,.6),rgba(16,45,47,.05) 62%);z-index:1}
.photoband-cap{position:absolute;left:0;bottom:0;z-index:2;padding:26px 6vw;max-width:760px}
.photoband-cap p{color:#fff;font-family:var(--display);font-size:clamp(1.05rem,2vw,1.5rem);line-height:1.3;margin:0;text-shadow:0 1px 12px rgba(0,0,0,.3)}
.photostrip{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.photostrip img{width:100%;height:300px;object-fit:cover;border-radius:var(--radius);display:block}
@media(max-width:680px){.photostrip{grid-template-columns:1fr}.photostrip img{height:190px}}

/* ---- floated figure variants + float containment ---- */
.prose::after{content:"";display:table;clear:both}
.photo-portrait.left{float:left;margin:4px 30px 18px 0}
@media(max-width:620px){.photo-portrait.left{float:none;width:100%;margin:0 0 22px}}

/* ---- service / about: text + photo rail (clean, no float) ---- */
.svc-grid{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:clamp(28px,4vw,52px);align-items:start}
.svc-grid .prose{max-width:none}
.svc-aside{margin:0}
.svc-aside figure{margin:0 0 22px}
.svc-aside figure:last-child{margin-bottom:0}
.svc-aside img{width:100%;height:auto;border-radius:var(--radius);display:block}
.svc-aside figcaption{font-size:.82rem;color:var(--muted);margin-top:8px;font-family:var(--display);line-height:1.4}
@media(max-width:820px){
  .svc-grid{grid-template-columns:1fr;gap:24px}
  .svc-aside{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:18px}
  .svc-aside figure{margin:0}
}

/* accessibility: skip-to-content link */
.skip-link{position:absolute;left:-9999px;top:0;background:var(--teal);color:#fff;padding:10px 16px;border-radius:0 0 5px 0;z-index:1000}
.skip-link:focus{left:0}