:root{
  color-scheme: light dark;
  --bg:#FAFAF7;
  --surface:#FFFFFF;
  --surface-2:#F1F4F1;
  --ink:#12171B;
  --ink-soft:#57625C;
  --ink-faint:#8A948D;
  --line:#E3E7E3;
  --accent:#1F7A53;
  --accent-ink:#0F5236;
  --accent-soft:#E7F2EC;
  --shadow:0 24px 60px -32px rgba(18,23,27,0.35);
}
@media (prefers-color-scheme: dark){
  :root{
    --bg:#0E1310;
    --surface:#141B17;
    --surface-2:#182019;
    --ink:#EDF3EF;
    --ink-soft:#A7B5AD;
    --ink-faint:#6E7C74;
    --line:#233029;
    --accent:#3CCB8C;
    --accent-ink:#BFF3D8;
    --accent-soft:rgba(60,203,140,0.14);
    --shadow:0 24px 60px -32px rgba(0,0,0,0.6);
  }
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{margin:0;background:var(--bg);color:var(--ink);font-family:'Public Sans',system-ui,-apple-system,sans-serif;-webkit-font-smoothing:antialiased;overflow-x:hidden;}
h1,h2,h3,.eyebrow,.org-mark{font-family:'Archivo',system-ui,sans-serif;}
.mono-num{font-family:'IBM Plex Mono','Public Sans',monospace;font-variant-numeric:tabular-nums;}
a{color:inherit;text-decoration:none;}
ul{margin:0;padding:0;list-style:none;}
img{max-width:100%;display:block;}
::selection{background:var(--accent);color:#fff;}
button{font:inherit;background:none;border:none;cursor:pointer;color:inherit;}
h1,h2,h3,p{margin:0;}
@supports (text-wrap:balance){h1,h2,h3,p{text-wrap:balance;}}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:2px;}
.container{max-width:1180px;margin:0 auto;padding-inline:32px;}
.eyebrow{font-size:12px;font-weight:600;letter-spacing:0.14em;text-transform:uppercase;color:var(--accent);margin-bottom:14px;display:block;}
.eyebrow.light{color:#7CE8B5;}
section h2{font-size:clamp(28px,3.4vw,40px);font-weight:700;letter-spacing:-0.01em;margin-bottom:44px;}
.org-mark{font-weight:700;font-size:12px;letter-spacing:.08em;text-transform:uppercase;color:var(--ink-faint);white-space:nowrap;transition:color .2s ease;}

/* nav */
.nav{position:sticky;top:0;z-index:50;width:100%;background:transparent;border-bottom:1px solid transparent;transition:background .35s ease, border-color .35s ease, padding .35s ease, backdrop-filter .35s ease;padding-block:22px;}
.nav.scrolled{background:color-mix(in srgb, var(--bg) 82%, transparent);backdrop-filter:blur(14px) saturate(140%);border-bottom:1px solid var(--line);padding-block:14px;}
.nav-inner{max-width:1180px;margin:0 auto;padding-inline:32px;display:flex;align-items:center;justify-content:space-between;gap:24px;}
.brand{font-family:'Archivo',sans-serif;font-weight:800;font-size:16px;letter-spacing:-0.02em;width:40px;height:40px;border-radius:50%;border:1.5px solid var(--accent);display:flex;align-items:center;justify-content:center;color:var(--accent);flex-shrink:0;}
.nav-links{display:flex;align-items:center;gap:30px;}
.nav-links a{font-size:14.5px;font-weight:500;color:var(--ink-soft);transition:color .2s ease;position:relative;}
.nav-links a:hover{color:var(--ink);}
.nav-links a:not(.nav-cta)::after{content:"";position:absolute;left:0;right:0;bottom:-6px;height:2px;background:var(--accent);transform:scaleX(0);transform-origin:left;transition:transform .25s ease;}
.nav-links a:not(.nav-cta):hover::after{transform:scaleX(1);}
.nav-cta{background:var(--ink);color:var(--bg);padding:9px 18px;border-radius:999px;font-weight:600;font-size:13.5px;transition:transform .2s ease, background .2s ease;}
.nav-cta:hover{background:var(--accent);transform:translateY(-1px);}
.menu-btn{display:none;flex-direction:column;justify-content:center;gap:5px;width:34px;height:34px;flex-shrink:0;}
.menu-btn span{display:block;height:2px;width:100%;background:var(--ink);border-radius:2px;transition:transform .25s ease, opacity .25s ease;}
.menu-btn.open span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.menu-btn.open span:nth-child(2){opacity:0;}
.menu-btn.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

@media (max-width:860px){
  .menu-btn{display:flex;}
  .nav-links{position:fixed;top:0;right:0;height:100vh;width:min(78vw,320px);background:var(--surface);flex-direction:column;align-items:flex-start;justify-content:center;gap:26px;padding:32px;box-shadow:var(--shadow);transform:translateX(100%);transition:transform .35s ease;border-left:1px solid var(--line);}
  .nav-links.open{transform:translateX(0);}
  .nav-links a{font-size:18px;}
  .nav-cta{margin-top:6px;}
}

/* hero */
.hero{padding-top:64px;position:relative;}
.hero::before{content:"";position:absolute;inset:0;height:640px;background-image:linear-gradient(var(--line) 1px, transparent 1px), linear-gradient(90deg, var(--line) 1px, transparent 1px);background-size:64px 64px;-webkit-mask-image:linear-gradient(to bottom, rgba(0,0,0,.5), transparent 85%);mask-image:linear-gradient(to bottom, rgba(0,0,0,.5), transparent 85%);opacity:.55;pointer-events:none;z-index:0;}
.hero-grid{position:relative;z-index:1;max-width:1180px;margin:0 auto;padding-inline:32px;display:grid;grid-template-columns:1.15fr 0.85fr;gap:48px;align-items:center;padding-block:36px 56px;}
.hero-byline{display:flex;align-items:center;gap:14px;margin-bottom:22px;}
.hero-photo{width:52px;height:52px;border-radius:50%;object-fit:cover;object-position:center 18%;border:1.5px solid var(--accent);}
.hero-byline .name-line{font-size:14.5px;font-weight:600;color:var(--ink-soft);}
.hero-copy h1{font-size:clamp(40px,5.6vw,60px);font-weight:800;letter-spacing:-0.03em;line-height:1.03;margin-bottom:16px;}
.hero-copy .role{font-size:clamp(16px,1.8vw,19px);font-weight:600;color:var(--accent-ink);margin-bottom:20px;}
.hero-copy .lede{font-size:17px;line-height:1.65;color:var(--ink-soft);max-width:54ch;margin-bottom:34px;}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;}
.btn{display:inline-flex;align-items:center;gap:8px;padding:13px 24px;border-radius:999px;font-weight:600;font-size:14.5px;transition:transform .2s ease, box-shadow .2s ease, background .2s ease, border-color .2s ease;}
.btn.primary{background:var(--ink);color:var(--bg);}
.btn.primary:hover{background:var(--accent);transform:translateY(-2px);box-shadow:var(--shadow);}
.btn.ghost{border:1.5px solid var(--line);color:var(--ink);}
.btn.ghost:hover{border-color:var(--accent);color:var(--accent-ink);transform:translateY(-2px);}
.hero-visual{display:flex;justify-content:center;}
.chart{width:100%;max-width:400px;overflow:visible;}
.chart-axis{stroke:var(--line);stroke-width:1.5;}
.chart-line{fill:none;stroke:var(--accent);stroke-width:3;stroke-linecap:round;stroke-linejoin:round;stroke-dasharray:520;stroke-dashoffset:520;}
.chart-dot{fill:var(--surface);stroke:var(--accent);stroke-width:2.5;opacity:0;transform-origin:center;}
.chart-dot.end{fill:var(--accent);}

@media (prefers-reduced-motion:no-preference){
  .chart-line{animation:draw 1.6s ease .3s forwards;}
  .chart-dot{animation:pop .4s ease forwards;}
  .reveal-item{opacity:0;transform:translateY(16px);animation:fadeUp .7s ease forwards;}
}
@keyframes draw{to{stroke-dashoffset:0;}}
@keyframes pop{from{opacity:0;transform:scale(.4);}to{opacity:1;transform:scale(1);}}
@keyframes fadeUp{to{opacity:1;transform:translateY(0);}}

/* scroll-reveal (progressive enhancement: visible by default, JS adds the pending state) */
.reveal-io{transition:opacity .6s ease, transform .6s ease;}
.reveal-io.pending{opacity:0;transform:translateY(18px);}
.reveal-io.pending.visible{opacity:1;transform:translateY(0);}

/* metrics */
.metrics{position:relative;z-index:1;max-width:1180px;margin:0 auto;padding-inline:32px;display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--line);}
.metric{padding:28px 8px;border-right:1px solid var(--line);}
.metric:last-child{border-right:none;}
.metric-value{font-size:clamp(22px,2.6vw,30px);font-weight:600;color:var(--ink);margin-bottom:6px;}
.metric-label{font-size:12.5px;color:var(--ink-faint);line-height:1.4;}
@media (max-width:860px){
  .hero-grid{grid-template-columns:1fr;}
  .hero-visual{order:-1;max-width:280px;margin:0 auto;}
  .metrics{grid-template-columns:repeat(2,1fr);}
  .metric:nth-child(2n){border-right:none;}
  .metric{border-bottom:1px solid var(--line);}
}

/* case studies */
.cases{padding-block:100px;border-bottom:1px solid var(--line);}
.case-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;margin-bottom:24px;}
.cs-tile{position:relative;display:block;background:var(--surface);border:1px solid var(--line);border-radius:20px;overflow:hidden;transition:transform .3s ease, box-shadow .3s ease, border-color .3s ease;}
.cs-tile::before{content:"";position:absolute;inset:0;background:radial-gradient(320px circle at var(--mx,50%) var(--my,0%), var(--accent-soft), transparent 65%);opacity:0;transition:opacity .35s ease;pointer-events:none;}
.cs-tile:hover{transform:translateY(-5px);box-shadow:var(--shadow);border-color:var(--accent);}
.cs-tile:hover::before{opacity:1;}
.cs-tile::after{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:var(--accent);transform:scaleX(0);transform-origin:left;transition:transform .35s ease;}
.cs-tile:hover::after{transform:scaleX(1);}
.cs-feature{padding:40px;}
.cs-top{display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;margin-bottom:16px;position:relative;}
.cs-tag{display:inline-block;font-size:11px;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--accent-ink);background:var(--accent-soft);padding:6px 12px;border-radius:999px;}
.cs-logo-img{height:20px;width:auto;opacity:.9;}
@media (prefers-color-scheme: dark){.cs-logo-img{filter:brightness(0) invert(1);opacity:.85;}}
.cs-feature h3{font-size:23px;font-weight:700;margin-bottom:6px;letter-spacing:-0.01em;position:relative;}
.cs-period{font-size:12.5px;color:var(--ink-faint);margin-bottom:16px;position:relative;}
.cs-summary{font-size:15.5px;line-height:1.6;color:var(--ink-soft);margin-bottom:26px;position:relative;}
.cs-points{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;position:relative;}
.cs-point{border-top:2px solid var(--accent);padding-top:12px;}
.cs-point-label{display:block;font-size:11px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--ink);margin-bottom:6px;}
.cs-point-text{font-size:13.5px;line-height:1.5;color:var(--ink-soft);}
.case-grid-small{display:grid;grid-template-columns:1fr 1fr;gap:24px;}
.cs-compact{padding:30px;}
.cs-compact h3{font-size:18px;font-weight:700;margin-bottom:10px;position:relative;}
.cs-compact .cs-summary{font-size:14px;margin-bottom:0;}
.cs-soon{font-size:11.5px;color:var(--ink-faint);position:relative;margin-top:18px;display:flex;align-items:center;gap:6px;}
.cs-link{font-size:12.5px;font-weight:600;color:var(--accent-ink);position:relative;margin-top:18px;display:flex;align-items:center;gap:6px;transition:gap .2s ease;}
.cs-tile:hover .cs-link{gap:10px;}
@media (max-width:860px){.case-grid,.case-grid-small{grid-template-columns:1fr;}.cs-points{grid-template-columns:1fr;}.cs-feature{padding:30px;}}

/* experience */
.experience{padding-block:100px;border-bottom:1px solid var(--line);}
.timeline{position:relative;display:flex;flex-direction:column;gap:52px;}
.timeline-row{display:grid;grid-template-columns:180px 1fr;gap:36px;}
.timeline-mark{position:relative;display:flex;flex-direction:column;gap:10px;padding-left:22px;border-left:2px solid var(--line);}
.timeline-mark .dot{position:absolute;left:-7px;top:2px;width:12px;height:12px;border-radius:50%;background:var(--bg);border:2.5px solid var(--accent);}
.timeline-mark .range{font-size:13px;color:var(--ink-faint);font-weight:500;}
.timeline-head{display:flex;align-items:baseline;gap:12px;flex-wrap:wrap;margin-bottom:6px;}
.timeline-content h3{font-size:20px;font-weight:700;}
.timeline-content .org{font-size:14.5px;font-weight:600;color:var(--accent-ink);margin-bottom:14px;}
.timeline-content .org .place{font-weight:400;color:var(--ink-faint);}
.timeline-content ul li{position:relative;padding-left:18px;color:var(--ink-soft);font-size:15px;line-height:1.65;margin-bottom:8px;}
.timeline-content ul li::before{content:"";position:absolute;left:0;top:9px;width:6px;height:6px;border-radius:1px;background:var(--accent);}
.timeline-row:hover .org-mark{color:var(--accent-ink);}
@media (max-width:700px){.timeline-row{grid-template-columns:1fr;gap:12px;}.timeline-mark{flex-direction:row;align-items:center;border-left:none;padding-left:0;border-top:2px solid var(--line);padding-top:12px;}.timeline-mark .dot{left:-2px;top:-7px;}}

/* credentials strip */
.credentials{padding-block:56px;border-bottom:1px solid var(--line);}
.cred-row{display:flex;flex-wrap:wrap;gap:12px;}
.cred-chip{display:flex;align-items:center;gap:10px;font-size:13.5px;color:var(--ink-soft);padding:10px 16px;border-radius:999px;background:var(--surface-2);border:1px solid var(--line);transition:border-color .2s ease, transform .2s ease;}
.cred-chip:hover{border-color:var(--accent);transform:translateY(-2px);}
.cred-chip .org-mark{color:var(--accent-ink);}

/* footer */
.site-footer{background:#0F1512;color:#EDF3EF;padding-block:90px 32px;}
.footer-inner{display:grid;grid-template-columns:auto 1fr 0.85fr;gap:40px 48px;padding-bottom:64px;align-items:center;}
.site-footer h2{font-size:clamp(30px,4vw,44px);font-weight:800;letter-spacing:-0.02em;margin-block:14px 16px;color:#FFFFFF;}
.footer-text{font-size:16px;line-height:1.6;color:#A9B8AF;max-width:44ch;}
.footer-contact{display:flex;flex-direction:column;gap:18px;justify-content:center;}
.contact-link{display:flex;align-items:center;gap:12px;font-size:16px;font-weight:500;color:#EDF3EF;padding-bottom:14px;border-bottom:1px solid #23302A;transition:color .2s ease, gap .2s ease;}
.contact-link svg{color:#3CCB8C;flex-shrink:0;}
a.contact-link:hover{color:#3CCB8C;gap:16px;}
.footer-bottom{display:flex;justify-content:space-between;font-size:13px;color:#6E7C74;padding-top:24px;border-top:1px solid #1B2620;flex-wrap:wrap;gap:8px;}
.footer-photo-wrap{width:168px;height:168px;border-radius:20px;overflow:hidden;border:1px solid #23302A;flex-shrink:0;}
.footer-photo-wrap img{width:100%;height:100%;object-fit:cover;object-position:center 22%;display:block;}
@media (max-width:700px){
  .footer-inner{grid-template-columns:1fr;gap:24px;}
  .footer-photo-wrap{width:120px;height:120px;}
}

/* case detail pages */
.case-hero{padding-block:56px 40px;border-bottom:1px solid var(--line);}
.back-link{display:inline-flex;align-items:center;gap:8px;font-size:13.5px;font-weight:600;color:var(--ink-soft);margin-bottom:28px;transition:gap .2s ease, color .2s ease;}
.back-link:hover{gap:12px;color:var(--accent-ink);}
.case-hero h1{font-size:clamp(32px,4.6vw,48px);font-weight:800;letter-spacing:-0.02em;line-height:1.08;margin-block:14px 14px;max-width:20ch;}
.case-meta{font-size:13.5px;color:var(--ink-faint);margin-bottom:22px;}
.case-lead{font-size:18px;line-height:1.65;color:var(--ink-soft);max-width:62ch;}
.case-body{padding-block:64px 20px;}
.case-section{max-width:760px;margin:0 0 56px;}
.case-section h2{font-size:clamp(20px,2.4vw,26px);font-weight:700;letter-spacing:-0.01em;margin-bottom:16px;}
.case-section p{font-size:16px;line-height:1.75;color:var(--ink-soft);margin-bottom:14px;}
.case-section p:last-child{margin-bottom:0;}
.case-section ul{margin-top:10px;}
.case-section ul li{position:relative;padding-left:20px;color:var(--ink-soft);font-size:15.5px;line-height:1.65;margin-bottom:10px;}
.case-section ul li::before{content:"";position:absolute;left:0;top:9px;width:6px;height:6px;border-radius:1px;background:var(--accent);}
.case-section ul li strong{color:var(--ink);}
.case-note{font-size:13.5px;color:var(--ink-faint);font-style:italic;border-left:2px solid var(--line);padding-left:16px;max-width:62ch;}
.case-stat-row{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin:0 0 60px;padding:32px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.case-stat-value{font-size:clamp(24px,3vw,32px);font-weight:700;color:var(--accent-ink);margin-bottom:6px;}
.case-stat-label{font-size:13px;color:var(--ink-faint);line-height:1.4;}
.case-framework{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:8px;}
.case-fw-item{background:var(--surface-2);border:1px solid var(--line);border-radius:14px;padding:18px;}
.case-fw-item .num{font-family:'IBM Plex Mono',monospace;font-size:12px;color:var(--accent-ink);font-weight:600;margin-bottom:8px;display:block;}
.case-fw-item h4{font-size:14.5px;font-weight:700;margin-bottom:6px;}
.case-fw-item p{font-size:13px;line-height:1.5;color:var(--ink-soft);margin:0;}
.case-cta{display:flex;flex-wrap:wrap;align-items:center;gap:16px;padding-block:44px 0;border-top:1px solid var(--line);}
.case-cta p{font-size:15px;color:var(--ink-soft);margin-right:auto;}
@media (max-width:860px){
  .case-stat-row{grid-template-columns:1fr;gap:24px;}
  .case-framework{grid-template-columns:1fr 1fr;}
}
@media (max-width:560px){
  .case-framework{grid-template-columns:1fr;}
}