/* Kandarpa Mukherjee — personal site
   Layout: one long page; a split hero (name left, portrait right), then
   alternating light and night bands. Left-aligned throughout. */
:root{
  --ink:#16181D;        /* text */
  --ink-2:#4A4F5C;      /* secondary text */
  --paper:#FFFFFF;      /* page */
  --mist:#EEF0F4;       /* light band */
  --indigo:#22306B;     /* primary: buttons, links */
  --indigo-deep:#18234F;
  --saffron:#F2A93B;    /* accent spark: markers, focus, numbers on night */
  --night:#121527;      /* dark bands */
  --on-night:#D9DDEA;   /* text on night */
  --on-night-2:#A9B0C6;
  --line:#DADDE5;
  --night-line:#2A2F4A;
  --display:"Bricolage Grotesque","Segoe UI",system-ui,sans-serif;
  --body:"IBM Plex Sans",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --wrap:1180px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important;animation:none!important}}
body{margin:0;background:var(--paper);color:var(--ink);font:400 17px/1.65 var(--body)}
img{max-width:100%;display:block}
a{color:var(--indigo);text-underline-offset:3px}
:focus-visible{outline:3px solid var(--saffron);outline-offset:3px;border-radius:4px}
.skip{position:absolute;left:-999px;top:8px;background:var(--ink);color:#fff;padding:10px 14px;border-radius:8px;z-index:100}
.skip:focus{left:16px}
.wrap{max-width:var(--wrap);margin:0 auto;padding-left:max(24px,env(safe-area-inset-left,0px));padding-right:max(24px,env(safe-area-inset-right,0px))}
@media (max-width:640px){.wrap{padding-left:max(16px,env(safe-area-inset-left,0px));padding-right:max(16px,env(safe-area-inset-right,0px))}}

h1,h2,h3{font-family:var(--display);margin:0 0 .45em;color:inherit;text-wrap:balance}
h1{font-size:clamp(2.8rem,7vw,5.6rem);line-height:.95;font-weight:800;letter-spacing:-.035em}
h2{font-size:clamp(1.9rem,3.6vw,2.9rem);line-height:1.05;font-weight:750;letter-spacing:-.025em;max-width:20ch}
h3{font-size:1.3rem;line-height:1.25;font-weight:700;letter-spacing:-.01em}
p{margin:0 0 1em;max-width:65ch}
.lede{font-size:1.2rem;line-height:1.55;color:var(--ink-2);max-width:54ch}
.label{display:block;font:600 .95rem/1.3 var(--body);color:var(--indigo);margin-bottom:12px}
.night .label{color:var(--saffron)}
.small{font-size:.9rem;color:var(--ink-2)}

/* Header */
.top{position:sticky;top:env(safe-area-inset-top,0px);z-index:40;background:rgba(255,255,255,.95);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.top .wrap{display:flex;align-items:center;gap:20px;height:66px}
.mark{font:800 1.15rem var(--display);letter-spacing:-.02em;color:var(--ink);text-decoration:none;display:flex;align-items:center;gap:10px}
.mark span{display:inline-grid;place-items:center;width:34px;height:34px;border-radius:50%;background:var(--indigo);color:#fff;font-size:.85rem;letter-spacing:0}
.top nav{margin-left:auto;display:flex;gap:4px;align-items:center}
.top nav a{color:var(--ink);text-decoration:none;font-weight:500;font-size:.97rem;padding:9px 12px;border-radius:8px}
.top nav a:hover{background:var(--mist)}
.top nav a.btn{color:#fff;margin-left:6px}
.menu{display:none;margin-left:auto;font:600 .95rem var(--body);background:var(--mist);border:0;border-radius:8px;padding:9px 14px;color:var(--ink);cursor:pointer}
@media (max-width:860px){
  .menu{display:block}
  .top nav{display:none;position:absolute;left:0;right:0;top:66px;background:#fff;border-bottom:1px solid var(--line);flex-direction:column;align-items:stretch;padding:10px 16px 18px}
  .top nav.open{display:flex}
  .top nav a.btn{margin:8px 0 0;text-align:center}
}

/* Buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;font:600 1rem/1 var(--body);padding:15px 22px;border-radius:10px;border:2px solid var(--indigo);background:var(--indigo);color:#fff;text-decoration:none;cursor:pointer}
.btn:hover{background:var(--indigo-deep);border-color:var(--indigo-deep);color:#fff}
.btn.ghost{background:transparent;color:var(--indigo)}
.btn.ghost:hover{background:var(--mist)}
.btn.sun{background:var(--saffron);border-color:var(--saffron);color:var(--night)}
.btn.sun:hover{background:#FFC064;border-color:#FFC064}
.btn.sm{padding:10px 16px;font-size:.95rem}
.row{display:flex;flex-wrap:wrap;gap:12px;align-items:center}

/* Sections */
section{padding-block:96px}
@media (max-width:640px){section{padding-block:64px}}
.band{background:var(--mist)}
.night{background:var(--night);color:var(--on-night)}
.night h2,.night h3{color:#fff}
.night .lede,.night p{color:var(--on-night)}
.head{margin-bottom:48px}
.split{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:start}
@media (max-width:900px){.split{grid-template-columns:1fr;gap:28px}}
.split > *{min-width:0}

/* Hero */
.hero{padding-block:72px 88px;border-bottom:1px solid var(--line)}
.hero .wrap{display:grid;grid-template-columns:1.15fr .85fr;gap:64px;align-items:center}
.hero .roles{display:flex;flex-wrap:wrap;gap:8px;margin:0 0 26px;padding:0;list-style:none}
.hero .roles li{font:600 .9rem var(--body);padding:7px 12px;border-radius:999px;background:var(--mist);color:var(--ink)}
.hero .roles li:first-child{background:var(--indigo);color:#fff}
.hero h1 .last{display:block;color:var(--indigo)}
.hero .lede{margin-top:22px}
.hero .row{margin-top:30px}
.portrait{position:relative;max-width:420px;margin:0 0 0 auto;width:100%}
.portrait img{width:100%;height:auto;aspect-ratio:1/1;object-fit:cover;border-radius:18px}
.portrait figcaption{position:absolute;left:-28px;bottom:-22px;background:var(--night);color:#fff;border-radius:12px;padding:14px 18px;font-size:.92rem;line-height:1.4;max-width:250px;box-shadow:0 20px 40px -24px rgba(18,21,39,.6)}
.portrait figcaption strong{display:block;color:var(--saffron);font-family:var(--display);font-size:1.05rem}
@media (max-width:900px){
  .hero .wrap{grid-template-columns:1fr;gap:36px}
  .portrait{margin:0 auto;max-width:360px}
  .portrait figcaption{left:12px}
}

/* Proof numbers */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border-top:1px solid var(--night-line)}
.stat{padding:30px 24px 6px 0;border-right:1px solid var(--night-line);margin-right:24px}
.stat:last-child{border-right:0;margin-right:0}
.stat strong{display:block;font:800 clamp(2.4rem,4.6vw,3.6rem)/1 var(--display);letter-spacing:-.03em;color:var(--saffron);font-variant-numeric:tabular-nums}
.stat span{display:block;margin-top:12px;color:var(--on-night);font-weight:500;max-width:22ch}
@media (max-width:900px){.stats{grid-template-columns:repeat(2,1fr)}.stat:nth-child(2){border-right:0;margin-right:0}}
@media (max-width:480px){.stats{grid-template-columns:1fr}.stat{border-right:0;margin-right:0;border-bottom:1px solid var(--night-line);padding-bottom:24px}}
.note{font-size:.85rem;color:var(--on-night-2);margin-top:26px}

/* Ventures */
.ventures{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
@media (max-width:760px){.ventures{grid-template-columns:1fr}}
.venture{border:1px solid var(--line);border-radius:16px;padding:30px;background:#fff;display:flex;flex-direction:column}
.venture .kind{font:600 .88rem var(--body);color:var(--ink-2);margin-bottom:6px}
.venture h3{font-size:1.7rem;margin-bottom:.3em}
.venture .role{font-weight:600;color:var(--indigo);margin-bottom:14px}
.venture p{color:var(--ink-2)}
.venture .row{margin-top:auto;padding-top:10px}
.venture.feature{background:var(--indigo);border-color:var(--indigo);color:#fff}
.venture.feature .kind,.venture.feature p{color:#C9D0EE}
.venture.feature .role{color:var(--saffron)}
.venture.feature .btn{background:#fff;border-color:#fff;color:var(--indigo)}
.venture.feature .btn.ghost{background:transparent;color:#fff;border-color:#fff}
.tags{display:flex;flex-wrap:wrap;gap:6px;list-style:none;padding:0;margin:0 0 14px}
.tags li{font-size:.85rem;font-weight:500;padding:4px 10px;border-radius:999px;border:1px solid var(--line);color:var(--ink-2)}
.venture.feature .tags li{border-color:#4A5694;color:#E3E7F7}

/* Story timeline (a real sequence of years) */
.timeline{list-style:none;padding:0;margin:0;position:relative}
.timeline::before{content:"";position:absolute;left:68px;top:8px;bottom:8px;width:2px;background:var(--line)}
.timeline li{display:grid;grid-template-columns:56px 1fr;gap:36px;padding:0 0 34px;position:relative}
.timeline li::after{content:"";position:absolute;left:62px;top:9px;width:14px;height:14px;border-radius:50%;background:#fff;border:3px solid var(--indigo)}
.timeline li:last-child::after{background:var(--saffron);border-color:var(--night)}
.timeline .yr{font:800 1.1rem/1.6 var(--display);color:var(--indigo)}
.timeline h3{margin-bottom:.25em}
.timeline p{color:var(--ink-2);margin:0}

/* Speaking */
.topics{list-style:none;padding:0;margin:0 0 24px;display:grid;gap:12px}
.topics li{border:1px solid var(--night-line);border-radius:12px;padding:16px 18px}
.topics strong{display:block;color:#fff;font-family:var(--display);font-size:1.1rem}
.topics span{color:var(--on-night-2);font-size:.95rem}

/* Forms */
.form{display:grid;gap:16px}
.form .two{display:grid;grid-template-columns:1fr 1fr;gap:16px}
@media (max-width:560px){.form .two{grid-template-columns:1fr}}
label{display:block;font-weight:600;font-size:.95rem;margin-bottom:6px}
label .opt{font-weight:400;color:var(--ink-2)}
input[type=text],input[type=email],input[type=url],select,textarea{width:100%;font:inherit;font-size:1rem;color:var(--ink);background:#fff;border:1.5px solid #C7CCD8;border-radius:10px;padding:13px 14px}
textarea{min-height:130px;resize:vertical}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--indigo);box-shadow:0 0 0 3px rgba(34,48,107,.15)}
.panel{background:#fff;color:var(--ink);border-radius:16px;padding:32px}
@media (max-width:560px){.panel{padding:22px}}
.night .panel label{color:var(--ink)}
.hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
.chips{display:flex;flex-wrap:wrap;gap:8px;border:0;padding:0;margin:0}
.chips legend{font-weight:600;font-size:.95rem;margin-bottom:8px;padding:0}
.chip{position:relative}
.chip input{position:absolute;inset:0;opacity:0;cursor:pointer}
.chip span{display:inline-block;padding:9px 14px;border:1.5px solid #C7CCD8;border-radius:999px;font-weight:500;font-size:.95rem;background:#fff}
.chip input:checked + span{border-color:var(--indigo);background:var(--indigo);color:#fff}
.chip input:focus-visible + span{outline:3px solid var(--saffron);outline-offset:2px}
.msg{display:none;font-weight:600;padding:12px 14px;border-radius:10px}
.msg.err{display:block;background:#FDECEA;color:#B42318}
.fine{font-size:.85rem;color:var(--ink-2);margin:0}
.inline{display:grid;grid-template-columns:1fr 1fr auto;gap:12px;align-items:end;max-width:760px}
@media (max-width:700px){.inline{grid-template-columns:1fr}}

/* Newsletter */
.issues{list-style:none;padding:0;margin:0 0 8px;display:grid;gap:10px}
.issues li{padding-left:26px;position:relative}
.issues li::before{content:"";position:absolute;left:0;top:.62em;width:12px;height:12px;border-radius:3px;background:var(--saffron)}

/* Footer */
footer{background:var(--night);color:var(--on-night-2);padding-block:56px 36px;font-size:.95rem}
footer a{color:#fff;text-decoration:none}
footer a:hover{color:var(--saffron)}
.foot{display:flex;flex-wrap:wrap;justify-content:space-between;gap:28px;align-items:flex-start}
.foot .mark{color:#fff}
.social{display:flex;flex-wrap:wrap;gap:8px;list-style:none;padding:0;margin:0}
.social a{display:inline-block;border:1px solid var(--night-line);border-radius:999px;padding:8px 14px;font-weight:500}
.social a:hover{border-color:var(--saffron)}
.legal{border-top:1px solid var(--night-line);margin-top:36px;padding-top:22px;display:flex;flex-wrap:wrap;gap:12px 24px;justify-content:space-between}
.linkbtn{font:inherit;background:none;border:0;padding:0;color:#fff;cursor:pointer}
.linkbtn:hover{color:var(--saffron)}

/* Cookie bar (only shown when tracking IDs are set) */
.cookie{position:fixed;left:16px;right:16px;bottom:calc(16px + env(safe-area-inset-bottom,0px));z-index:60;max-width:680px;margin:0 auto;background:var(--night);color:var(--on-night);border:1px solid var(--night-line);border-radius:14px;padding:18px 20px;display:none;gap:12px;flex-wrap:wrap;align-items:center}
.cookie.show{display:flex}
.cookie p{margin:0;flex:1 1 300px;font-size:.92rem}
.cookie .btn{padding:10px 16px;font-size:.92rem}

/* Simple pages */
.page{padding-block:80px}
.prose{max-width:720px}
.prose h2{font-size:1.6rem;margin-top:1.6em}
.prose ul{padding-left:22px}
.hide{display:none!important}
.night .panel h3{color:var(--ink)}
.night .panel p,.night .panel .fine{color:var(--ink-2)}
.timeline::before{bottom:48px}