/* Sarat Sasikumar — a route-map identity: one red line carries the career across the site. */
:root{
  --paper:#F6F7F9; --surface:#FFFFFF; --ink:#0F1C2E; --muted:#556274; --rule:#D9DEE5;
  --route:#C4362B; --band:#0F1C2E; --band-ink:#EEF2F7; --band-muted:#A7B3C2; --tint:#E9EEF4;
  --serif:"Source Serif 4", Georgia, "Times New Roman", serif;
  --sans:"IBM Plex Sans", "Segoe UI", system-ui, sans-serif;
}
@media (prefers-color-scheme: dark){:root:not([data-theme="light"]){
  --paper:#0C131D; --surface:#131C28; --ink:#E8EDF3; --muted:#9AA8B8; --rule:#243142;
  --route:#E8574A; --band:#050A11; --band-ink:#E8EDF3; --band-muted:#8E9CAD; --tint:#16212F; color-scheme:dark}}
:root[data-theme="dark"]{
  --paper:#0C131D; --surface:#131C28; --ink:#E8EDF3; --muted:#9AA8B8; --rule:#243142;
  --route:#E8574A; --band:#050A11; --band-ink:#E8EDF3; --band-muted:#8E9CAD; --tint:#16212F; color-scheme:dark}

*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--sans);font-size:17px;line-height:1.65}
a{color:inherit;text-decoration-color:var(--route);text-decoration-thickness:2px;text-underline-offset:4px}
a:hover{color:var(--route)}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible{outline:3px solid var(--route);outline-offset:3px;border-radius:3px}
img{max-width:100%;display:block}
p{margin:0 0 1em}
.wrap{max-width:1120px;margin:0 auto;padding-inline:20px}
@media (min-width:760px){.wrap{padding-inline:40px}}
.read{max-width:680px}

h1,h2,h3{font-family:var(--serif);font-weight:600;line-height:1.12;margin:0;text-wrap:balance;letter-spacing:-.012em}
h1{font-size:clamp(36px,6vw,68px);font-weight:600}
h2{font-size:clamp(28px,3.6vw,42px)}
h3{font-size:clamp(21px,2.2vw,25px)}
.sub{font-size:clamp(18px,1.9vw,21px);color:var(--muted);max-width:640px;margin-top:22px}

/* header */
.top{border-bottom:1px solid var(--rule)}
.top .wrap{display:flex;align-items:center;justify-content:space-between;gap:12px 24px;flex-wrap:wrap;padding-block:18px}
.brand{font-family:var(--serif);font-size:22px;font-weight:600;text-decoration:none;display:flex;align-items:center;gap:10px}
.brand i{width:12px;height:12px;border-radius:50%;border:3px solid var(--route);display:inline-block}
.nav{display:flex;flex-wrap:wrap;gap:4px 22px;font-size:15px}
.nav a{text-decoration:none;color:var(--muted);padding:4px 0;border-bottom:2px solid transparent}
.nav a:hover{color:var(--ink)}
.nav a[aria-current=page]{color:var(--ink);border-color:var(--route)}

/* buttons */
.actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:32px}
.btn{display:inline-block;font:600 15px var(--sans);padding:13px 22px;border-radius:4px;text-decoration:none;border:2px solid var(--ink);cursor:pointer}
.btn.solid{background:var(--ink);color:var(--paper)}
.btn.solid:hover{background:var(--route);border-color:var(--route);color:#fff}
.btn.line{background:transparent;color:var(--ink)}
.btn.line:hover{border-color:var(--route);color:var(--route)}

/* hero */
.hero{padding-block:72px 40px;display:grid;gap:40px;grid-template-columns:minmax(0,1fr)}
@media (min-width:900px){.hero{grid-template-columns:minmax(0,1fr) 240px;align-items:end}}
.hero .who{font-size:15px;color:var(--muted);margin:0 0 22px}
.hero .who b{color:var(--ink);font-weight:600}
.portrait{width:240px;aspect-ratio:4/5;background:var(--tint);border-radius:4px;overflow:hidden;position:relative;display:grid;place-items:center;border:1px solid var(--rule)}
.portrait img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.portrait span{font-family:var(--serif);font-size:72px;color:var(--route)}
@media (max-width:899px){.portrait{width:120px;order:-1}.portrait span{font-size:40px}}

/* the route: signature element */
.route{position:relative;margin:24px 0 72px;padding:0;list-style:none;display:grid;gap:0}
.route::before{content:"";position:absolute;background:var(--route);border-radius:4px}
.route li{position:relative}
.route .stop{display:block;width:22px;height:22px;border-radius:50%;background:var(--paper);border:5px solid var(--route);position:relative;z-index:1}
.route li.now .stop{background:var(--route);box-shadow:0 0 0 5px var(--paper),0 0 0 7px var(--route)}
.route .place{font-family:var(--serif);font-size:21px;font-weight:600;line-height:1.2}
.route .yr{font-size:14px;color:var(--route);font-weight:600;font-variant-numeric:tabular-nums}
.route .what{font-size:14.5px;color:var(--muted);line-height:1.45;margin-top:4px}
@media (min-width:860px){
  .route{grid-template-columns:repeat(5,minmax(0,1fr))}
  .route::before{left:11px;right:calc(20% - 11px);top:9px;height:5px;transform-origin:left;animation:drawx 1.6s cubic-bezier(.6,.05,.3,1) both}
  .route li{padding-right:18px}
  .route .stop{margin-bottom:18px}
}
@media (max-width:859px){
  .route::before{left:9px;top:14px;bottom:14px;width:5px;transform-origin:top;animation:drawy 1.6s cubic-bezier(.6,.05,.3,1) both}
  .route li{display:grid;grid-template-columns:22px 1fr;gap:0 18px;padding-bottom:26px}
  .route li:last-child{padding-bottom:0}
  .route .stop{grid-row:span 3;margin-top:4px}
}
@keyframes drawx{from{transform:scaleX(0)}to{transform:scaleX(1)}}
@keyframes drawy{from{transform:scaleY(0)}to{transform:scaleY(1)}}
@media (prefers-reduced-motion:reduce){.route::before{animation:none}}

/* scale band */
.band{background:var(--band);color:var(--band-ink);padding-block:72px}
.band h2{color:var(--band-ink);max-width:720px}
.band .lead{color:var(--band-muted);max-width:640px;margin-top:16px}
.scale{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:40px 32px;margin-top:48px}
@media (min-width:900px){.scale{grid-template-columns:repeat(4,minmax(0,1fr))}}
.scale b{display:block;font-family:var(--serif);font-weight:600;font-size:clamp(40px,5.4vw,64px);line-height:1;letter-spacing:-.02em;font-variant-numeric:lining-nums}
.scale span{display:block;margin-top:12px;color:var(--band-muted);font-size:15px;line-height:1.5;border-top:2px solid var(--route);padding-top:12px}

/* sections */
.sec{padding-block:80px;border-bottom:1px solid var(--rule)}
.sec.flush{border-bottom:0}
.sec-head{display:grid;gap:16px;margin-bottom:44px}
@media (min-width:900px){.sec-head{grid-template-columns:minmax(0,1fr) minmax(0,1fr);align-items:end;gap:40px}}
.sec-head p{color:var(--muted);margin:0}

/* clients */
.clients{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));border-top:1px solid var(--rule)}
@media (min-width:700px){.clients{grid-template-columns:repeat(3,minmax(0,1fr))}}
@media (min-width:1000px){.clients{grid-template-columns:repeat(4,minmax(0,1fr))}}
.clients li{list-style:none;border-bottom:1px solid var(--rule);padding:18px 12px 18px 0;min-width:0}
.clients b{display:block;font-family:var(--serif);font-size:19px;font-weight:600;line-height:1.25}
.clients small{display:block;color:var(--muted);font-size:13.5px;margin-top:2px}
ul.clients{padding:0;margin:0}

/* feature cases (home) */
.feature{display:grid;gap:20px;padding-block:36px;border-top:1px solid var(--rule)}
.feature:last-of-type{border-bottom:1px solid var(--rule)}
@media (min-width:900px){.feature{grid-template-columns:260px minmax(0,1fr) 220px;gap:40px;align-items:start}}
.feature .org{font-weight:600}
.feature .org small{display:block;font-weight:400;color:var(--muted);font-size:14px}
.feature h3{margin-bottom:10px}
.feature p{color:var(--muted);margin:0}
.feature .out{font-family:var(--serif);font-size:30px;font-weight:600;line-height:1.1;color:var(--route)}
.feature .out small{display:block;font-family:var(--sans);font-size:14px;font-weight:400;color:var(--muted);margin-top:6px;line-height:1.4}
.more{margin-top:32px;font-weight:600}

/* point of view */
.pov{display:grid;gap:32px}
@media (min-width:900px){.pov{grid-template-columns:minmax(0,1.3fr) minmax(0,1fr);gap:64px;align-items:start}}
.pov blockquote{margin:0;font-family:var(--serif);font-size:clamp(26px,3.2vw,38px);line-height:1.25;font-weight:500;border-left:5px solid var(--route);padding-left:28px}
.pov p{color:var(--muted)}

/* case studies (work page) */
.case{display:grid;gap:24px;padding-block:52px;border-top:1px solid var(--rule)}
@media (min-width:900px){.case{grid-template-columns:280px minmax(0,1fr);gap:56px}}
.case aside .org{font-family:var(--serif);font-size:24px;font-weight:600;line-height:1.2}
.case aside .meta{color:var(--muted);font-size:14.5px;margin-top:6px}
.case aside .out{margin-top:24px;font-family:var(--serif);font-size:36px;font-weight:600;line-height:1;color:var(--route)}
.case aside .out small{display:block;font-family:var(--sans);font-size:14px;font-weight:400;color:var(--muted);margin-top:8px;line-height:1.4}
.case h2{font-size:clamp(24px,2.8vw,32px);margin-bottom:20px}
.case dl{margin:0;display:grid;gap:18px}
.case dt{font-weight:600;font-size:15px}
.case dd{margin:4px 0 0;color:var(--muted)}
.case .stack{display:flex;flex-wrap:wrap;gap:8px;margin:22px 0 0;padding:0;list-style:none}
.stack li{font-size:13.5px;background:var(--tint);border-radius:3px;padding:3px 10px}

/* about */
.story{display:grid;gap:40px}
@media (min-width:960px){.story{grid-template-columns:minmax(0,1fr) 300px;gap:72px}}
.story .read p{font-size:18px}
.facts{border-top:3px solid var(--route);padding-top:18px;align-self:start}
.facts dl{margin:0;display:grid;gap:16px}
.facts dt{font-size:14px;color:var(--muted)}
.facts dd{margin:2px 0 0;font-weight:600}
.timeline{width:100%;border-collapse:collapse;font-size:15.5px}
.timeline th,.timeline td{text-align:left;padding:14px 16px 14px 0;border-bottom:1px solid var(--rule);vertical-align:top}
.timeline th{font-size:14px;color:var(--muted);font-weight:600}
.timeline td:first-child{white-space:nowrap;color:var(--route);font-weight:600;font-variant-numeric:tabular-nums}
.timeline td:nth-child(2){font-weight:600}
.scroll{overflow-x:auto}
.principles{display:grid;gap:36px 48px}
@media (min-width:760px){.principles{grid-template-columns:repeat(2,minmax(0,1fr))}}
.principles h3{margin-bottom:8px}
.principles p{color:var(--muted);margin:0}
.creds{display:grid;gap:40px}
@media (min-width:760px){.creds{grid-template-columns:repeat(2,minmax(0,1fr))}}
.creds h3{margin-bottom:14px}
.creds ul{margin:0;padding:0;list-style:none}
.creds li{padding:10px 0;border-bottom:1px solid var(--rule)}
.creds li small{display:block;color:var(--muted);font-size:14px}

/* practice areas */
.practice{display:grid;gap:20px;padding-block:44px;border-top:1px solid var(--rule)}
@media (min-width:900px){.practice{grid-template-columns:320px minmax(0,1fr);gap:56px}}
.practice p{color:var(--muted)}
.practice ul.list{margin:0;padding:0 0 0 18px}
.practice ul.list li{margin-bottom:6px}
.roles{display:flex;flex-wrap:wrap;gap:10px;margin:0;padding:0;list-style:none}
.roles li{border:2px solid var(--ink);border-radius:4px;padding:8px 16px;font-weight:600;font-size:15px}

/* cta */
.cta{background:var(--tint);padding-block:72px}
.cta .wrap{display:grid;gap:24px}
@media (min-width:900px){.cta .wrap{grid-template-columns:minmax(0,1fr) auto;align-items:end;gap:56px}}
.cta p{color:var(--muted);max-width:620px;margin:14px 0 0}
.cta .actions{margin-top:0}

/* contact */
.contact{display:grid;gap:48px;padding-block:72px}
@media (min-width:900px){.contact{grid-template-columns:minmax(0,1fr) minmax(0,1.25fr);gap:72px}}
.ways{margin:32px 0 0;padding:0;list-style:none}
.ways li{padding:14px 0;border-bottom:1px solid var(--rule)}
.ways small{display:block;color:var(--muted);font-size:14px}
.ways a{font-weight:600;word-break:break-word}
.msg{display:grid;gap:18px;background:var(--surface);border:1px solid var(--rule);border-top:4px solid var(--route);padding:28px;position:relative;align-self:start}
.msg h2{font-size:28px}
.msg .row{display:grid;gap:18px}
@media (min-width:560px){.msg .row{grid-template-columns:1fr 1fr}}
.msg label{display:grid;gap:6px;font-size:14.5px;font-weight:600}
.msg input,.msg textarea{font:400 16px var(--sans);color:var(--ink);background:var(--paper);border:1px solid var(--rule);border-radius:3px;padding:12px;width:100%}
.msg textarea{min-height:160px;resize:vertical}
.msg button{justify-self:start}
.msg button[disabled]{opacity:.6;cursor:wait}
.hp{position:absolute;left:-9999px}
#form-status{margin:0;min-height:1.5em;font-size:15px}
#form-status.ok{color:#2E7D4F}#form-status.err{color:var(--route)}

/* footer */
footer{background:var(--band);color:var(--band-muted);padding-block:44px;font-size:14.5px}
footer .wrap{display:grid;gap:18px}
@media (min-width:760px){footer .wrap{grid-template-columns:1fr auto;align-items:end}}
footer b{color:var(--band-ink);font-family:var(--serif);font-size:19px;font-weight:600;display:block;margin-bottom:4px}
footer nav{display:flex;flex-wrap:wrap;gap:6px 20px}
footer a{color:var(--band-ink)}