/* Sujit Ray — SAP Enterprise Transformation & Business AI Leader */
:root{
  --ink:#0E1116;
  --ink-2:#1B2230;
  --text:#2A313C;
  --muted:#5B6472;
  --line:#E3E7ED;
  --soft:#F4F6F9;
  --navy:#0A1A30;
  --navy-2:#11284A;
  --accent:#0D63D1;
  --accent-soft:#E8F1FD;
  --on-dark:#C9D4E3;
  --on-dark-accent:#6FB2FF;
  --container:1160px;
  --gutter:32px;
  --radius:14px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{font-family:"Manrope",system-ui,sans-serif;color:var(--text);background:#fff;font-size:17px;line-height:1.7;-webkit-font-smoothing:antialiased}
img{display:block;max-width:100%;height:auto}
a{color:inherit}
h1,h2,h3,h4{color:var(--ink);font-weight:800;letter-spacing:-.03em;line-height:1.1}
.container{max-width:calc(var(--container) + var(--gutter)*2);margin:0 auto;padding:0 var(--gutter)}
.narrow{max-width:760px}
.skip{position:absolute;left:-9999px;top:0;background:#fff;padding:8px 12px;z-index:100}
.skip:focus{left:8px}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px}

/* ---------- Header ---------- */
.site-header{position:sticky;top:0;z-index:30;background:rgba(255,255,255,.92);backdrop-filter:saturate(1.4) blur(10px);border-bottom:1px solid transparent;transition:border-color .2s}
.site-header.scrolled{border-bottom-color:var(--line)}
.site-header .container{display:flex;align-items:center;justify-content:space-between;height:78px;gap:24px}
.brand{display:flex;flex-direction:column;text-decoration:none;line-height:1.15}
.brand strong{font-size:18px;font-weight:800;color:var(--ink);letter-spacing:-.02em}
.brand span{font-size:11.5px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}
.nav{display:flex;align-items:center;gap:4px}
.nav a{font-size:14px;font-weight:700;text-decoration:none;color:var(--ink-2);padding:8px 11px;border-radius:8px;transition:background .2s,color .2s;white-space:nowrap}
.nav a:hover{background:var(--soft)}
.nav a[aria-current="page"]{color:var(--accent)}
.nav a.nav-cta{background:var(--ink);color:#fff;margin-left:8px;padding:9px 16px;border-radius:40px}
.nav a.nav-cta:hover{background:var(--accent)}
.nav a.nav-cta[aria-current="page"]{background:var(--accent);color:#fff}
.menu-btn{display:none;background:none;border:0;cursor:pointer;padding:10px;margin-right:-10px}
.menu-btn span{display:block;width:22px;height:2px;background:var(--ink);margin:5px 0;transition:transform .25s,opacity .25s}

/* ---------- Type & shared ---------- */
.eyebrow{display:inline-block;font-size:13px;font-weight:800;letter-spacing:.1em;text-transform:uppercase;color:var(--accent)}
.eyebrow.muted{color:var(--muted)}
.h2{font-size:44px;margin-top:12px}
.h3{font-size:24px;letter-spacing:-.02em}
.lead{font-size:20px;line-height:1.65;color:var(--text)}
.section{padding:110px 0}
.section.tight{padding:80px 0}
.section.soft{background:var(--soft)}
.section.dark{background:var(--navy);color:var(--on-dark)}
.section.dark h2,.section.dark h3,.section.dark h4{color:#fff}
.section.dark .eyebrow{color:var(--on-dark-accent)}
.section-head{display:grid;grid-template-columns:1fr 1fr;gap:40px 80px;align-items:end;margin-bottom:56px}
.section-head p{color:var(--muted)}
.dark .section-head p{color:var(--on-dark)}
.chips{display:flex;flex-wrap:wrap;gap:8px;list-style:none}
.chips li{font-size:13.5px;font-weight:700;padding:6px 12px;border-radius:40px;background:var(--accent-soft);color:var(--accent)}
.dark .chips li{background:rgba(111,178,255,.12);color:var(--on-dark-accent)}

/* ---------- Buttons ---------- */
.btn{display:inline-flex;align-items:center;gap:12px;height:52px;padding:0 26px;border-radius:52px;font-size:15px;font-weight:800;text-decoration:none;border:2px solid var(--ink);transition:background .2s,color .2s,border-color .2s;cursor:pointer;font-family:inherit}
.btn svg{width:18px;height:18px;fill:currentColor;transition:transform .2s}
.btn:hover svg{transform:translate(2px,-2px)}
.btn-primary{background:var(--ink);color:#fff}
.btn-primary:hover{background:var(--accent);border-color:var(--accent)}
.btn-ghost{background:transparent;color:var(--ink)}
.btn-ghost:hover{background:var(--ink);color:#fff}
.dark .btn-primary{background:#fff;color:var(--ink);border-color:#fff}
.dark .btn-primary:hover{background:var(--on-dark-accent);border-color:var(--on-dark-accent)}
.dark .btn-ghost{color:#fff;border-color:rgba(255,255,255,.5)}
.dark .btn-ghost:hover{background:#fff;color:var(--ink)}
.text-link{display:inline-flex;align-items:center;gap:8px;font-weight:800;font-size:15px;text-decoration:none;color:var(--ink);border-bottom:2px solid currentColor;padding-bottom:2px}
.text-link svg{width:14px;height:14px;fill:currentColor}
.text-link:hover{color:var(--accent)}
.dark .text-link{color:#fff}
.actions{display:flex;flex-wrap:wrap;gap:14px;align-items:center}

/* ---------- Hero ---------- */
.hero{padding:72px 0 90px;position:relative;overflow:hidden}
.hero::before{content:"";position:absolute;right:-240px;top:-200px;width:720px;height:720px;border-radius:50%;background:radial-gradient(closest-side,var(--accent-soft),rgba(255,255,255,0));z-index:-1}
.hero-grid{display:grid;grid-template-columns:1fr 360px;gap:64px;align-items:center}
.hero h1{font-size:68px;line-height:1;letter-spacing:-.045em;margin:18px 0 22px}
.hero h1 .accent{color:var(--accent)}
.hero .caps{font-size:15px;font-weight:800;color:var(--ink-2);letter-spacing:.01em;margin-bottom:26px}
.hero .caps span{color:var(--line);margin:0 6px}
.hero .lead{max-width:640px;margin-bottom:36px}
.hero-photo{position:relative}
.hero-photo img{width:100%;aspect-ratio:327/440;object-fit:cover;object-position:top;border-radius:var(--radius);background:var(--soft)}
.hero-photo figcaption{position:absolute;left:-28px;bottom:28px;background:#fff;border-radius:12px;padding:14px 18px;box-shadow:0 18px 40px rgba(10,26,48,.14);font-size:13px;line-height:1.4;max-width:230px}
.hero-photo figcaption strong{display:block;font-size:15px;color:var(--ink)}
.proof{display:grid;grid-template-columns:repeat(4,1fr);gap:0;margin-top:72px;border-top:1px solid var(--line)}
.proof div{padding:26px 24px 0 0}
.proof div+div{padding-left:24px;border-left:1px solid var(--line)}
.proof strong{display:block;font-size:40px;font-weight:800;color:var(--ink);letter-spacing:-.04em;line-height:1.1}
.proof span{display:block;font-size:14.5px;line-height:1.5;color:var(--muted);margin-top:6px}

/* ---------- Logos ---------- */
.logos-wrap{padding:44px 0 56px;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.logos-wrap p{font-size:13px;font-weight:800;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);text-align:center}
.logos{list-style:none;display:grid;grid-template-columns:repeat(6,1fr);align-items:center;gap:20px;margin-top:10px}
.logos li{display:flex;justify-content:center}
.logos img{width:131px;height:70px;object-fit:cover;filter:grayscale(1);opacity:.75;transition:filter .2s,opacity .2s}
.logos a:hover img{filter:none;opacity:1}

/* ---------- Pillars ---------- */
.pillars{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.pillar{display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:30px 26px;text-decoration:none;transition:transform .2s,box-shadow .2s,border-color .2s}
.pillar:hover{transform:translateY(-4px);box-shadow:0 20px 40px rgba(10,26,48,.08);border-color:transparent}
.pillar .num{font-size:13px;font-weight:800;color:var(--accent);letter-spacing:.1em}
.pillar h3{font-size:22px;margin:14px 0 10px;letter-spacing:-.02em}
.pillar p{font-size:15.5px;line-height:1.6;color:var(--muted);flex:1}
.pillar .more{margin-top:20px;font-size:14px;font-weight:800;color:var(--ink);display:flex;align-items:center;gap:6px}
.pillar .more svg{width:13px;height:13px;fill:currentColor}

/* ---------- Layer stack diagram ---------- */
.stack{display:grid;gap:10px}
.layer{display:grid;grid-template-columns:200px 1fr;gap:24px;align-items:center;border-radius:12px;padding:20px 26px;background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.1)}
.layer h4{font-size:16px;letter-spacing:0;color:#fff}
.layer p{font-size:15px;line-height:1.55;color:var(--on-dark)}
.layer.core{background:rgba(111,178,255,.14);border-color:rgba(111,178,255,.45)}
.layer.core h4{color:var(--on-dark-accent)}
.light .layer{background:#fff;border-color:var(--line)}
.light .layer h4{color:var(--ink)}
.light .layer p{color:var(--muted)}
.light .layer.core{background:var(--accent-soft);border-color:#bcd6f7}
.light .layer.core h4{color:var(--accent)}

/* ---------- Flagship / case cards ---------- */
.flagship{display:grid;grid-template-columns:1.05fr 1fr;gap:0;border-radius:18px;overflow:hidden;background:var(--navy-2)}
.flagship-body{padding:52px 50px}
.flagship-body h3{font-size:34px;line-height:1.12;margin:14px 0 18px}
.flagship-body p{color:var(--on-dark)}
.flagship-body .chips{margin:26px 0 32px}
.flagship-visual{background:linear-gradient(160deg,#16335e,#0a1a30);padding:40px;display:flex;align-items:center}
.cases{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.case-card{display:flex;flex-direction:column;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;text-decoration:none;background:#fff;transition:transform .2s,box-shadow .2s}
.case-card:hover{transform:translateY(-4px);box-shadow:0 22px 44px rgba(10,26,48,.1)}
.case-card img{width:100%;aspect-ratio:16/8;object-fit:cover;background:var(--soft)}
.case-card .ph{aspect-ratio:16/8;background:linear-gradient(135deg,var(--navy),var(--navy-2));display:flex;align-items:flex-end;padding:22px;color:var(--on-dark-accent);font-weight:800;font-size:13px;letter-spacing:.1em;text-transform:uppercase}
.case-card .body{padding:28px 28px 30px;display:flex;flex-direction:column;flex:1}
.case-card .cat{font-size:12.5px;font-weight:800;letter-spacing:.09em;text-transform:uppercase;color:var(--accent)}
.case-card h3{font-size:23px;line-height:1.2;margin:10px 0 12px;letter-spacing:-.02em}
.case-card p{font-size:15.5px;line-height:1.6;color:var(--muted);flex:1}
.case-card .client{font-size:14px;font-weight:800;color:var(--ink-2);margin-top:18px}

/* ---------- Two-column feature lists ---------- */
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:26px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:30px 28px}
.soft .card{border-color:transparent}
.dark .card{background:rgba(255,255,255,.04);border-color:rgba(255,255,255,.1)}
.card h3{font-size:20px;letter-spacing:-.015em;margin-bottom:10px}
.card p,.card li{font-size:15.5px;line-height:1.6;color:var(--muted)}
.dark .card p,.dark .card li{color:var(--on-dark)}
.card ul{padding-left:18px;margin-top:10px}
.card li+li{margin-top:6px}
.card .icon{width:40px;height:40px;border-radius:10px;background:var(--accent-soft);color:var(--accent);display:grid;place-items:center;margin-bottom:18px;font-weight:800;font-size:15px}
.dark .card .icon{background:rgba(111,178,255,.14);color:var(--on-dark-accent)}
.badge{display:inline-block;font-size:11.5px;font-weight:800;letter-spacing:.08em;text-transform:uppercase;padding:4px 10px;border-radius:30px;margin-bottom:14px}
.badge.prod{background:#E4F5EA;color:#1B7A3A}
.badge.proto{background:#FFF3DC;color:#8A5A00}
.badge.concept{background:var(--accent-soft);color:var(--accent)}
.badge.thought{background:#F1EAFB;color:#6B3FB0}
.legend{display:flex;flex-wrap:wrap;gap:10px 18px;margin-bottom:34px;font-size:14px;color:var(--muted)}
.legend .badge{margin:0 6px 0 0}

/* ---------- Tables ---------- */
.usecases{width:100%;border-collapse:collapse;font-size:15px}
.usecases th{text-align:left;font-size:12.5px;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);font-weight:800;padding:0 16px 14px 0;border-bottom:2px solid var(--ink)}
.usecases td{padding:18px 16px 18px 0;border-bottom:1px solid var(--line);vertical-align:top;line-height:1.55}
.usecases td:first-child{font-weight:800;color:var(--ink);width:22%}
.usecases .badge{margin:0}
.table-wrap{overflow-x:auto}

/* ---------- Page header ---------- */
.page-head{padding:80px 0 70px;border-bottom:1px solid var(--line)}
.page-head h1{font-size:60px;line-height:1.02;letter-spacing:-.045em;margin:16px 0 22px;max-width:900px}
.page-head .lead{max-width:760px}
.page-head .chips{margin-top:28px}

/* ---------- Case study page ---------- */
.cs-head{padding:70px 0 60px;background:var(--navy);color:var(--on-dark)}
.cs-head .crumbs{font-size:14px;font-weight:700;margin-bottom:26px}
.cs-head .crumbs a{color:var(--on-dark);text-decoration:none}
.cs-head .crumbs a:hover{color:#fff}
.cs-head h1{color:#fff;font-size:52px;line-height:1.05;letter-spacing:-.04em;margin:14px 0 20px;max-width:960px}
.cs-head .lead{color:var(--on-dark);max-width:800px}
.cs-meta{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;margin-top:48px;padding-top:28px;border-top:1px solid rgba(255,255,255,.14)}
.cs-meta dt{font-size:12px;font-weight:800;letter-spacing:.1em;text-transform:uppercase;color:var(--on-dark-accent)}
.cs-meta dd{font-size:15.5px;color:#fff;font-weight:700;margin-top:6px;line-height:1.45}
.cs-layout{display:grid;grid-template-columns:240px 1fr;gap:72px;padding:80px 0 100px}
.cs-toc{position:sticky;top:110px;align-self:start;font-size:14px}
.cs-toc p{font-size:12px;font-weight:800;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);margin-bottom:12px}
.cs-toc ol{list-style:none;counter-reset:t;border-left:2px solid var(--line)}
.cs-toc li{counter-increment:t}
.cs-toc a{display:block;padding:6px 0 6px 16px;margin-left:-2px;border-left:2px solid transparent;text-decoration:none;color:var(--muted);font-weight:700;line-height:1.35}
.cs-toc a::before{content:counter(t,decimal-leading-zero) "  ";color:#aab2bf}
.cs-toc a:hover,.cs-toc a.active{color:var(--ink);border-left-color:var(--accent)}
.cs-body section{padding-bottom:54px;margin-bottom:54px;border-bottom:1px solid var(--line);scroll-margin-top:100px}
.cs-body section:last-child{border-bottom:0;margin-bottom:0}
.cs-body .step{font-size:12.5px;font-weight:800;letter-spacing:.1em;color:var(--accent);text-transform:uppercase}
.cs-body h2{font-size:32px;margin:8px 0 18px}
.cs-body p{max-width:760px}
.cs-body p+p{margin-top:16px}
.cs-body ul.list{max-width:760px;padding-left:0;list-style:none;margin-top:16px}
.cs-body ul.list li{position:relative;padding-left:26px;margin-top:10px}
.cs-body ul.list li::before{content:"";position:absolute;left:0;top:.72em;width:12px;height:2px;background:var(--accent)}
.cs-body figure{margin-top:28px;max-width:860px}
.cs-body figure img{border-radius:12px;width:100%}
.cs-body figcaption{font-size:14px;color:var(--muted);margin-top:10px}
.decisions{display:grid;gap:14px;margin-top:22px;max-width:860px}
.decision{display:grid;grid-template-columns:1fr 1fr;border:1px solid var(--line);border-radius:12px;overflow:hidden}
.decision div{padding:18px 22px;font-size:15.5px;line-height:1.55}
.decision div:first-child{background:var(--soft);font-weight:800;color:var(--ink)}
.decision small{display:block;font-size:11.5px;letter-spacing:.1em;text-transform:uppercase;color:var(--accent);font-weight:800;margin-bottom:4px}
.roadmap{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:22px;max-width:900px}
.roadmap div{border-top:3px solid var(--accent);background:var(--soft);padding:18px 20px;border-radius:0 0 10px 10px}
.roadmap strong{display:block;color:var(--ink);font-size:15.5px}
.roadmap span{font-size:14.5px;color:var(--muted);line-height:1.5;display:block;margin-top:6px}
.cs-next{background:var(--soft);padding:70px 0}
.cs-next .container{display:flex;justify-content:space-between;align-items:center;gap:30px;flex-wrap:wrap}
.cs-next h2{font-size:30px;max-width:640px}

/* ---------- Leadership ---------- */
.principles{counter-reset:p}
.principle{display:grid;grid-template-columns:90px 1fr;gap:24px;padding:34px 0;border-top:1px solid var(--line)}
.principle::before{counter-increment:p;content:counter(p,decimal-leading-zero);font-size:40px;font-weight:800;color:var(--accent);letter-spacing:-.04em;line-height:1}
.principle h3{font-size:24px;margin-bottom:8px}
.principle p{color:var(--muted);max-width:720px}
.awards{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.award{border-radius:var(--radius);overflow:hidden;background:#fff;border:1px solid var(--line)}
.award img{width:100%;aspect-ratio:16/10;object-fit:cover}
.award div{padding:26px 26px 30px}
.award h3{font-size:20px;letter-spacing:-.015em;line-height:1.3}
.award p{font-size:15.5px;color:var(--muted);margin-top:10px;line-height:1.6}
.patents{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.patent{border:1px solid rgba(255,255,255,.12);border-radius:12px;padding:26px}
.patent .meta{font-size:12.5px;font-weight:800;letter-spacing:.08em;text-transform:uppercase;color:var(--on-dark-accent)}
.patent h3{font-size:19px;letter-spacing:-.01em;margin:10px 0 8px;line-height:1.3}
.patent p{font-size:15px;line-height:1.6;color:var(--on-dark)}

/* ---------- About ---------- */
.about-hero{display:grid;grid-template-columns:1fr 340px;gap:70px;align-items:start}
.about-hero img{border-radius:var(--radius);aspect-ratio:327/440;object-fit:cover;object-position:top;width:100%}
.timeline{list-style:none;border-left:2px solid var(--line);margin-left:6px}
.timeline li{position:relative;padding:0 0 30px 30px}
.timeline li::before{content:"";position:absolute;left:-7px;top:6px;width:12px;height:12px;border-radius:50%;background:#fff;border:3px solid var(--accent)}
.timeline strong{display:block;color:var(--ink);font-size:17px}
.timeline span{display:block;font-size:14px;font-weight:700;color:var(--accent);margin-top:2px}
.timeline p{font-size:15.5px;color:var(--muted);margin-top:6px;max-width:640px}
.roles{list-style:none;display:grid;grid-template-columns:1fr 1fr;gap:10px}
.roles li{padding:14px 18px;border:1px solid rgba(255,255,255,.14);border-radius:10px;font-weight:700;color:#fff;font-size:15.5px}

/* ---------- Contact ---------- */
.contact-grid{display:grid;grid-template-columns:1fr 1.15fr;gap:70px;align-items:start}
.contact-list{list-style:none;margin-top:34px}
.contact-list li{padding:20px 0;border-top:1px solid var(--line)}
.contact-list li:last-child{border-bottom:1px solid var(--line)}
.contact-list small{display:block;font-size:12px;font-weight:800;letter-spacing:.1em;text-transform:uppercase;color:var(--muted)}
.contact-list a,.contact-list b{font-size:19px;font-weight:800;text-decoration:none;color:var(--ink)}
.contact-list a:hover{color:var(--accent)}
.form{background:var(--soft);padding:40px;border-radius:var(--radius)}
.form .row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.form label{display:block;font-size:14px;font-weight:800;margin:0 0 6px;color:var(--ink)}
.form .field{margin-bottom:18px}
.form input,.form textarea,.form select{width:100%;font:inherit;font-size:16px;line-height:1.5;padding:12px 14px;border:1px solid #d3d9e1;border-radius:8px;background:#fff;color:var(--ink)}
.form textarea{min-height:150px;resize:vertical}
.form .hp{position:absolute;left:-9999px}
.form-status{margin-top:14px;font-size:15px;font-weight:700}
.form-status.ok{color:#1b7a3a}.form-status.err{color:#b3261e}

/* ---------- CTA band & footer ---------- */
.cta-band{background:var(--navy);color:var(--on-dark);padding:90px 0}
.cta-band .container{display:grid;grid-template-columns:1.4fr 1fr;gap:40px;align-items:end}
.cta-band h2{color:#fff;font-size:42px}
.cta-band .actions{justify-content:flex-end}
.site-footer{background:#07111F;color:#8D9AAE;padding:56px 0 40px;font-size:14.5px}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:40px}
.foot-grid strong{color:#fff;font-size:17px}
.foot-grid p{margin-top:8px;max-width:360px;line-height:1.6}
.foot-grid h4{font-size:12px;letter-spacing:.1em;text-transform:uppercase;color:#fff;margin-bottom:12px}
.foot-grid ul{list-style:none}
.foot-grid li{margin-top:6px}
.foot-grid a{text-decoration:none;color:#8D9AAE}
.foot-grid a:hover{color:#fff}
.foot-bottom{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;margin-top:44px;padding-top:24px;border-top:1px solid rgba(255,255,255,.08);font-size:13.5px}

/* ---------- Reveal ---------- */
.reveal{opacity:0;transform:translateY(18px);transition:opacity .7s ease,transform .7s ease}
.reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none;transition:none}html{scroll-behavior:auto}}

/* ---------- Responsive ---------- */
@media (max-width:1180px){
  .nav a{padding:8px 8px;font-size:13.5px}
  .hero h1{font-size:58px}
  .pillars{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:1040px){
  .menu-btn{display:block}
  .nav{display:none;position:absolute;top:78px;left:0;right:0;flex-direction:column;align-items:stretch;background:#fff;padding:10px var(--gutter) 24px;border-bottom:1px solid var(--line);box-shadow:0 18px 30px rgba(10,26,48,.08)}
  .nav.open{display:flex}
  .nav a{padding:13px 4px;font-size:16px;border-radius:0;border-bottom:1px solid var(--line)}
  .nav a.nav-cta{margin:16px 0 0;text-align:center;border-bottom:0;padding:14px}
  .menu-btn[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
  .menu-btn[aria-expanded="true"] span:nth-child(2){opacity:0}
  .menu-btn[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
  .hero-grid{grid-template-columns:1fr 300px;gap:40px}
  .flagship{grid-template-columns:1fr}
  .cs-layout{grid-template-columns:1fr;gap:0}
  .cs-toc{display:none}
  .cta-band .container{grid-template-columns:1fr}
  .cta-band .actions{justify-content:flex-start}
}
@media (max-width:820px){
  :root{--gutter:20px}
  body{font-size:16px}
  .section{padding:70px 0}
  .section.tight{padding:56px 0}
  .h2{font-size:32px}
  .lead{font-size:18px}
  .hero{padding:36px 0 56px}
  .hero-grid{grid-template-columns:1fr}
  .hero h1{font-size:42px}
  .hero-photo{max-width:320px}
  .hero-photo figcaption{left:12px;bottom:12px}
  .proof{grid-template-columns:1fr 1fr;margin-top:48px}
  .proof div,.proof div+div{padding:20px 12px 20px 0;border-left:0;border-bottom:1px solid var(--line)}
  .proof strong{font-size:32px}
  .logos{grid-template-columns:repeat(3,1fr);gap:8px}
  .logos img{width:100%;height:auto;aspect-ratio:131/70}
  .section-head{grid-template-columns:1fr;gap:12px;margin-bottom:34px}
  .pillars,.cases,.grid-2,.grid-3,.awards,.patents,.roles{grid-template-columns:1fr}
  .layer{grid-template-columns:1fr;gap:6px;padding:18px 20px}
  .flagship-body{padding:32px 24px}
  .flagship-body h3{font-size:26px}
  .flagship-visual{padding:24px}
  .page-head{padding:44px 0 44px}
  .page-head h1{font-size:38px}
  .cs-head{padding:40px 0 44px}
  .cs-head h1{font-size:34px}
  .cs-meta{grid-template-columns:1fr 1fr;margin-top:30px}
  .cs-layout{padding:50px 0 60px}
  .cs-body h2{font-size:26px}
  .decision{grid-template-columns:1fr}
  .roadmap{grid-template-columns:1fr}
  .principle{grid-template-columns:1fr;gap:10px}
  .about-hero{grid-template-columns:1fr;gap:34px}
  .about-hero img{max-width:320px}
  .contact-grid{grid-template-columns:1fr;gap:36px}
  .form{padding:24px 20px}
  .form .row{grid-template-columns:1fr;gap:0}
  .cta-band{padding:60px 0}
  .cta-band h2{font-size:30px}
  .foot-grid{grid-template-columns:1fr;gap:28px}
  .usecases thead{display:none}
  .usecases tr{display:block;padding:16px 0;border-bottom:1px solid var(--line)}
  .usecases td{display:block;border:0;padding:4px 0}
  .usecases td:first-child{width:auto}
}
.cta-band .btn-primary{background:#fff;color:var(--ink);border-color:#fff}
.cta-band .btn-primary:hover{background:var(--on-dark-accent);border-color:var(--on-dark-accent)}
.cta-band .btn-ghost{color:#fff;border-color:rgba(255,255,255,.5)}
.cta-band .btn-ghost:hover{background:#fff;color:var(--ink)}

/* ---------- Rich case study additions ---------- */
.cs-metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:0;margin-top:34px;border:1px solid rgba(255,255,255,.14);border-radius:12px;overflow:hidden}
.cs-metrics div{padding:22px 22px}
.cs-metrics div+div{border-left:1px solid rgba(255,255,255,.14)}
.cs-metrics strong{display:block;font-size:36px;font-weight:800;color:#fff;letter-spacing:-.04em;line-height:1.1}
.cs-metrics span{display:block;font-size:14px;color:var(--on-dark);margin-top:4px;line-height:1.45}
.cs-hero{margin-top:-1px;padding-top:0}
.cs-hero img{width:100%;aspect-ratio:16/8;object-fit:cover;border-radius:0 0 18px 18px}
.persona-map{display:grid;gap:10px;margin-top:18px;max-width:760px}
.persona-map div{display:grid;grid-template-columns:150px 1fr;align-items:center;border:1px solid var(--line);border-radius:10px;overflow:hidden}
.persona-map strong{background:var(--ink);color:#fff;padding:14px 18px;font-size:15px;position:relative}
.persona-map span{padding:14px 18px;font-size:15px;color:var(--text)}
.framework{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:24px;max-width:900px}
.framework div{border:1px solid var(--line);border-radius:12px;padding:22px 20px;position:relative}
.framework div+div::before{content:"→";position:absolute;left:-13px;top:22px;color:var(--accent);font-weight:800}
.framework b{display:block;font-size:12.5px;letter-spacing:.1em;color:var(--accent)}
.framework strong{display:block;font-size:17px;color:var(--ink);margin:8px 0 6px}
.framework span{font-size:14.5px;color:var(--muted);line-height:1.55;display:block}
.fig-pair{display:grid;grid-template-columns:1fr 1fr;gap:16px;max-width:860px}
.fig-pair figure img{aspect-ratio:3/4;object-fit:cover}
.cs-body figure.video video{width:100%;border-radius:12px;background:#000;display:block}
.outcomes{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:22px;max-width:860px}
.outcomes div{background:var(--soft);border-radius:12px;padding:20px 22px}
.outcomes strong{display:block;color:var(--ink);font-size:17px}
.outcomes span{display:block;font-size:14.5px;color:var(--muted);margin-top:6px;line-height:1.55}
.cs-body blockquote{margin-top:30px;max-width:760px;font-size:22px;line-height:1.45;font-weight:700;color:var(--ink);letter-spacing:-.01em;border-left:4px solid var(--accent);padding-left:22px}
.cs-gallery{background:var(--soft);padding:90px 0}
.gallery-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.gallery-grid figure img{width:100%;aspect-ratio:3/4;object-fit:cover;border-radius:12px}
.gallery-grid figcaption{font-size:14px;color:var(--muted);margin-top:8px;line-height:1.45}
@media (max-width:820px){
  .cs-metrics{grid-template-columns:1fr 1fr}
  .cs-metrics div+div{border-left:0}
  .cs-metrics div:nth-child(even){border-left:1px solid rgba(255,255,255,.14)}
  .cs-metrics div:nth-child(n+3){border-top:1px solid rgba(255,255,255,.14)}
  .cs-metrics strong{font-size:28px}
  .cs-hero{padding:0}
  .cs-hero img{border-radius:0;aspect-ratio:4/3}
  .persona-map div{grid-template-columns:1fr}
  .framework,.outcomes,.fig-pair{grid-template-columns:1fr}
  .framework div+div::before{content:"↓";left:20px;top:-14px}
  .gallery-grid{grid-template-columns:1fr 1fr;gap:10px}
  .cs-gallery{padding:56px 0}
  .cs-body blockquote{font-size:19px}
}
.cs-body figure:not(.video) img{max-height:560px;object-fit:cover}
.fig-pair figure img{max-height:none}
.brand strong{font-size:20px;letter-spacing:.14em;font-weight:800}

/* ---------- Thought leadership band ---------- */
.cs-thought{background:var(--soft);padding:90px 0}
.tl-grid{display:grid;grid-template-columns:1.05fr 1fr;gap:56px;align-items:center}
.tl-grid figure img{width:100%;border-radius:14px;aspect-ratio:889/610;object-fit:cover}
.tl-grid figcaption{font-size:14px;color:var(--muted);margin-top:10px}
.tl-list{list-style:none;margin-top:14px}
.tl-list li{position:relative;padding-left:26px;margin-top:12px;line-height:1.6}
.tl-list li::before{content:"";position:absolute;left:0;top:.75em;width:12px;height:2px;background:var(--accent)}
@media (max-width:820px){.tl-grid{grid-template-columns:1fr;gap:28px}.cs-thought{padding:56px 0}}
/* modern collage for thought leadership */
.tl-collage{position:relative;display:grid;grid-template-columns:1fr 1fr;grid-template-rows:1fr 1fr;gap:12px;aspect-ratio:1/1;margin:0}
.tl-shot{overflow:hidden;border-radius:18px;box-shadow:0 18px 40px rgba(10,26,48,.16);background:#0A1A30}
.tl-shot img{width:100%;height:100%;object-fit:cover;display:block;transition:transform .6s ease;filter:saturate(1.05)}
.tl-shot:hover img{transform:scale(1.04)}
.tl-a{grid-column:1;grid-row:1}
.tl-b{grid-column:1;grid-row:2}
.tl-c{grid-column:2;grid-row:1/3}
.tl-c img{object-position:60% center}
.tl-badge{position:absolute;left:-18px;bottom:28px;background:#fff;border-radius:14px;padding:14px 18px;box-shadow:0 18px 40px rgba(10,26,48,.18);font-size:13px;line-height:1.35;color:var(--muted);max-width:210px}
.tl-badge strong{display:block;font-size:28px;font-weight:800;color:var(--accent);letter-spacing:-.03em}
@media (max-width:820px){.tl-collage{aspect-ratio:auto;grid-template-rows:180px 180px}.tl-badge{left:12px;bottom:12px}}
.tl-collage{aspect-ratio:5/4;grid-template-columns:1.25fr 1fr}
.tl-a img{object-position:22% 40%}
.tl-b img{object-position:28% 60%}
.tl-badge{left:auto;right:-16px;bottom:-18px}
@media (max-width:820px){.tl-collage{grid-template-columns:1fr 1fr}.tl-badge{right:12px;bottom:12px}}

/* ---------- Mobile polish ---------- */
.brand{padding:10px 0;min-height:44px;justify-content:center}
.menu-btn{min-width:44px;min-height:44px}
.hp{position:absolute!important;left:-9999px!important;width:1px;height:1px;overflow:hidden}
@media (max-width:820px){
  .badge{font-size:12.5px;padding:5px 11px}
  .text-link{padding:8px 0 4px}
  .cs-head .crumbs a{display:inline-block;padding:8px 0}
  .actions .btn{flex:1 1 auto;justify-content:center}
  .hero .caps{font-size:14px;line-height:1.7}
  .cs-meta dd{font-size:14.5px}
  .gallery-grid figcaption,.cs-body figcaption{font-size:13.5px}
  .foot-grid a{display:inline-block;padding:6px 0}
  img,video{max-width:100%}
}
/* career timeline details */
.timeline .tl-date{display:block;font-style:normal;font-size:13px;color:var(--muted);margin-top:2px}
.timeline .tl-points{list-style:none;margin:10px 0 0;padding:0;max-width:640px}
.timeline .tl-points li{padding:0 0 0 16px;position:relative;font-size:14.5px;color:var(--muted);margin-top:5px}
.timeline .tl-points li::before{content:"";position:absolute;left:0;top:9px;width:6px;height:6px;border-radius:50%;background:var(--accent);border:0}
/* About hero workshop photo */
.about-hero{grid-template-columns:1fr 420px}
.about-hero img.about-photo{aspect-ratio:3/4;object-position:center;box-shadow:0 24px 60px rgba(10,26,48,.18)}
@media (max-width:900px){.about-hero{grid-template-columns:1fr}.about-hero img.about-photo{max-width:420px}}
/* ---- Career: chronological timeline ---- */
.career{list-style:none;margin:8px 0 0;padding:0;position:relative;max-width:980px}
.career::before{content:"";position:absolute;left:150px;top:8px;bottom:8px;width:2px;background:var(--line)}
.cr-item{display:grid;grid-template-columns:130px 1fr;gap:40px;padding:0 0 30px;position:relative}
.cr-item::after{content:"";position:absolute;left:144px;top:6px;width:14px;height:14px;border-radius:50%;background:#fff;border:3px solid var(--accent);box-sizing:border-box}
.cr-item:first-child::after{background:var(--accent)}
.cr-when{font-size:14px;font-weight:700;color:var(--muted);text-align:right;padding-top:2px;white-space:nowrap}
.cr-body h3{font-size:19px;line-height:1.25;margin:0;color:var(--ink)}
.cr-role{font-size:14px;font-weight:600;color:var(--accent);margin-top:2px}
.cr-body p{font-size:15px;color:var(--muted);margin:6px 0 0;max-width:640px}
.cr-tags{list-style:none;display:flex;flex-wrap:wrap;gap:6px;margin:10px 0 0;padding:0}
.cr-tags li{font-size:12.5px;font-weight:600;padding:4px 10px;border-radius:999px;background:rgba(21,101,216,.08);color:var(--ink)}
.cap-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
@media (max-width:900px){.cap-grid{grid-template-columns:1fr 1fr}}
@media (max-width:640px){
  .career::before{left:6px}
  .cr-item{grid-template-columns:1fr;gap:4px;padding:0 0 26px 30px}
  .cr-item::after{left:0}
  .cr-when{text-align:left}
  .cap-grid{grid-template-columns:1fr}
}
/* ---- SAP certifications ---- */
.certs{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.cert{position:relative;border:1px solid var(--line);border-radius:14px;padding:18px 18px 16px;background:#fff;display:flex;flex-direction:column}
.cert-main{border-color:rgba(21,101,216,.35);background:linear-gradient(180deg,rgba(21,101,216,.06),#fff 60%)}
.cert-kind{font-size:11px;font-weight:800;letter-spacing:.08em;text-transform:uppercase;color:var(--accent)}
.cert:not(.cert-main) .cert-kind{color:var(--muted)}
.cert h3{font-size:16px;line-height:1.3;margin:8px 0 4px;color:var(--ink)}
.cert p{font-size:14px;line-height:1.45;color:var(--muted);margin:0;flex:1}
.cert-year{align-self:flex-start;margin-top:12px;font-size:12px;font-weight:700;padding:3px 9px;border-radius:999px;background:rgba(10,26,48,.06);color:var(--ink)}
@media (max-width:1000px){.certs{grid-template-columns:repeat(2,1fr)}}
@media (max-width:560px){.certs{grid-template-columns:1fr}}
/* light divider between stacked sections */
.section.divided{padding-top:0}
.section.divided>.container::before{content:"";display:block;border-top:1px solid #e6e8ec;margin-bottom:56px}
@media (max-width:640px){.section.divided>.container::before{margin-bottom:40px}}