@font-face{font-family:'Space Grotesk';font-style:normal;font-weight:300 700;font-display:swap;src:url(/assets/fonts/space-grotesk-latin.woff2) format('woff2');unicode-range:U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD}
@font-face{font-family:'Geist';font-style:normal;font-weight:100 900;font-display:swap;src:url(/assets/fonts/geist-latin.woff2) format('woff2');unicode-range:U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD}
@font-face{font-family:'Geist Mono';font-style:normal;font-weight:100 900;font-display:swap;src:url(/assets/fonts/geist-mono-latin.woff2) format('woff2');unicode-range:U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD}
@font-face{font-family:'Noto Serif Tamil';font-style:normal;font-weight:400;font-display:swap;src:url(/assets/fonts/noto-serif-tamil-tamil.woff2) format('woff2');unicode-range:U+0964-0965, U+0B82-0BFA, U+200C-200D, U+20B9, U+25CC}
@font-face{font-family:'Noto Serif Tamil';font-style:normal;font-weight:400;font-display:swap;src:url(/assets/fonts/noto-serif-tamil-latin.woff2) format('woff2');unicode-range:U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD}

:root{
  --bg:#F4F3EF; --surface:#FFFFFF; --border:#DDDAD2; --text:#1B1D24; --muted:#5F6472;
  --amber:#8F5810; --amber-hover:#6E4309; --cyan:#156F6A; --focus:#6E4309;
  --head:"Space Grotesk", "Helvetica Neue", Arial, sans-serif;
  --body:"Geist", "Inter", "Helvetica Neue", Arial, sans-serif;
  --mono:"Geist Mono", ui-monospace, "SF Mono", Menlo, Consolas, monospace;
}
/* light is the default for everyone; dark is the visitor's choice through the toggle, remembered per browser */
:root[data-theme=dark]{
  --bg:#0F1219; --surface:#161A23; --border:#262B36; --text:#E6E3DC; --muted:#8E93A0;
  --amber:#F2A93B; --amber-hover:#FFC46A; --cyan:#5EE7DF; --focus:#FFC46A;
}
*{box-sizing:border-box}
.skip{position:absolute;left:-999px;top:8px;background:var(--amber);color:var(--bg);padding:.5rem .8rem;border-radius:6px;z-index:100;font-weight:500}
.skip:focus{left:8px}
html{background:var(--bg);color:var(--text);font-family:var(--body);font-size:16.5px;line-height:1.6;-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--text);font:400 16.5px/1.6 var(--body)}
img{max-width:100%;height:auto;display:block}
a{color:var(--amber);text-decoration:none;border-bottom:1px solid transparent;transition:border-color .12s ease,color .12s ease}
a:hover{color:var(--amber-hover);border-bottom-color:currentColor}
p a,.c a,.say a{text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:3px;text-decoration-color:color-mix(in srgb,var(--amber) 55%,transparent);border-bottom:0}
p a:hover,.c a:hover{text-decoration-color:currentColor}
a:focus-visible,button:focus-visible{outline:2px solid var(--focus);outline-offset:3px;border-radius:3px}
h1,h2,h3{font-family:var(--head);font-weight:600;line-height:1.15;margin:0;letter-spacing:-.015em}
h2{font-size:1.7rem;margin-bottom:1.1rem}
h3{font-size:1.15rem;margin-bottom:.3rem}
p{margin:0 0 1rem}
ul,ol{margin:0;padding:0;list-style:none}
.ta{font-family:"Noto Serif Tamil","Tamil Sangam MN","Nirmala UI","Noto Sans Tamil",serif}
.mono{font-family:var(--mono);font-size:.85rem;font-variant-numeric:tabular-nums;letter-spacing:0}
.wrap{max-width:1040px;margin:0 auto;padding:0 24px}

/* header */
.bar{display:flex;align-items:center;justify-content:space-between;gap:1rem;height:60px}
.wordmark{font-family:var(--head);font-weight:600;font-size:1.25rem;color:var(--text);border:0;letter-spacing:-.02em}
.wordmark:hover{color:var(--amber);border:0}
.bar .right{display:flex;gap:1.25rem;align-items:center}
.btn{font:inherit;font-size:.9rem;color:var(--muted);background:none;border:0;padding:0;cursor:pointer}
.btn:hover{color:var(--text)}
.btn[aria-pressed=true]{color:var(--amber)}
.menu-btn{display:none}
.drawer{display:none;border-top:1px solid var(--border);padding:.75rem 0 1rem}
.drawer ul{display:flex;flex-wrap:wrap;gap:.35rem 1.25rem}
.drawer a{color:var(--text)}
@media (max-width:1023px){.menu-btn{display:inline}.drawer.open{display:block}}

/* the band */
.band{position:relative;height:220px;border-top:1px solid var(--border);border-bottom:1px solid var(--border);background:var(--surface);overflow:hidden}
.band canvas{position:absolute;inset:0;width:100%;height:100%;display:block}
.band .cap{position:absolute;right:24px;bottom:12px;color:var(--muted);font-family:var(--mono);font-size:.75rem;pointer-events:none}
@media (max-width:719px){.band{height:160px}}

/* layout */
.page{display:grid;grid-template-columns:minmax(0,1fr);gap:0 56px;padding-top:24px}
main{min-width:0}
.rail{display:none}
@media (min-width:1024px){
  .page{grid-template-columns:200px minmax(0,680px)}
  .rail{display:block;position:sticky;top:24px;align-self:start;padding-top:56px}
  .rail li{margin:0 0 .35rem}
  .rail a{display:block;color:var(--muted);padding:.25rem 0 .25rem .9rem;border:0;border-left:2px solid transparent;font-size:.95rem}
  .rail a:hover{color:var(--text)}
  .rail a.active{color:var(--text);border-left-color:var(--amber)}
}

/* intro */
.intro{display:grid;grid-template-columns:1fr;gap:1.5rem 2.5rem;padding:32px 0 40px}
@media (min-width:720px){.intro{grid-template-columns:minmax(0,1fr) 168px;align-items:start}}
.intro h1{font-size:clamp(2.4rem,5vw,3rem);letter-spacing:-.03em;margin-bottom:.35rem}
.intro .lede{font-size:1.1rem;color:var(--muted);margin-bottom:1.25rem}
.intro p{max-width:62ch}
.portrait{margin:0;width:168px}
.portrait img{width:100%;aspect-ratio:1;object-fit:cover;border-radius:6px;border:1px solid var(--border)}
.portrait figcaption{margin-top:.4rem;color:var(--muted);font-family:var(--mono);font-size:.75rem}
@media (max-width:719px){.portrait{width:120px;order:-1}}
.elsewhere p{margin:0 0 .35rem;font-size:.95rem;display:flex;flex-wrap:wrap;align-items:baseline;gap:.2rem 1rem}
.elsewhere .k{color:var(--muted);font-family:var(--mono);font-size:.74rem;min-width:9.5em}

/* sections */
section{padding:40px 0;border-top:1px solid var(--border)}
section > p{max-width:62ch}

.now{border:1px solid var(--border);background:var(--surface);border-radius:6px;padding:1.1rem 1.25rem;margin-bottom:1rem}
.now .stamp{color:var(--amber);font-family:var(--mono);font-size:.8rem;margin-bottom:.6rem}
.now li{margin:0 0 .4rem;padding-left:1rem;position:relative}
.now li::before{content:"";position:absolute;left:0;top:.72em;width:5px;height:5px;border-radius:50%;background:var(--cyan)}

.sub{font-size:.95rem;font-weight:500;color:var(--muted);margin:1.5rem 0 .7rem;letter-spacing:.01em}
h2 + .sub{margin-top:.25rem}
.cards{display:grid;grid-template-columns:1fr;gap:14px}
@media (min-width:720px){.cards{grid-template-columns:1fr 1fr}.cards.three{grid-template-columns:1fr 1fr 1fr}}
.card.work{border-color:var(--amber);border-width:1px}
.card.work p{color:var(--text)}
.cards.three .card p{font-size:.88rem}
.cards.three .card h3{font-size:1.02rem}
.cover{aspect-ratio:8/5;border:1px solid var(--border);border-radius:4px;margin:0 0 .5rem;display:flex;align-items:center;justify-content:center;font-size:1.6rem;color:var(--cyan);background:var(--bg);font-family:"Noto Serif Tamil","Tamil Sangam MN","Nirmala UI","Noto Sans Tamil",serif}
.card{border:1px solid var(--border);background:var(--surface);border-radius:6px;padding:1rem 1.1rem;display:flex;flex-direction:column;gap:.35rem}
.card h3 a{color:var(--text)}
.card h3 a:hover{color:var(--amber)}
.card p{margin:0;font-size:.95rem;color:var(--muted)}
.card .go{margin-top:auto;padding-top:.5rem;font-size:.9rem}
.card img{border-radius:4px;border:1px solid var(--border);margin:0 0 .5rem}

.patents li{display:grid;grid-template-columns:1fr;gap:.15rem;padding:.75rem 0;border-top:1px solid var(--border)}
.patents li:first-child{border-top:0;padding-top:0}
.patents .ids{color:var(--muted)}
@media (min-width:720px){.patents li{grid-template-columns:minmax(0,1fr) 320px;gap:1.5rem}.patents .ids{text-align:right}}
.recognition{color:var(--muted);font-size:.95rem;margin-top:1.1rem}

.grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
@media (min-width:720px){.grid{grid-template-columns:repeat(3,1fr)}}
.grid figure{margin:0}
.grid img{width:100%;aspect-ratio:3/4;object-fit:cover;border-radius:6px;border:1px solid var(--border);background:var(--surface)}
.grid .wide{grid-column:span 2}
.grid .wide img{aspect-ratio:3/2}
.grid figcaption{margin-top:.4rem;color:var(--muted);font-size:.8rem;line-height:1.4}
.more{font-size:.95rem;margin-top:1rem}
.feature{margin-top:.25rem;border:1px solid var(--border);border-left:3px solid var(--cyan);border-radius:6px;background:var(--surface);padding:1rem 1.25rem}
.feature .with{color:var(--muted);font-size:.9rem;margin-bottom:.6rem}
.feature p{margin-bottom:.5rem}

.dated li{display:grid;grid-template-columns:84px 1fr;gap:1rem;padding:.55rem 0;border-top:1px solid var(--border)}
.dated li:first-child{border-top:0;padding-top:0}
.dated time,.dated .when{color:var(--muted);font-family:var(--mono);font-size:.8rem;padding-top:.3rem}
.dated a{color:var(--text)}
.dated a:hover{color:var(--amber)}
.dated .role{color:var(--muted);font-size:.92rem}
.gitlog{position:relative;margin-top:.25rem}
.graph path,.graph circle{transition:opacity .25s ease}
.graph .dim{opacity:.2}
.commits li.hot b{color:var(--amber)}
.graph{position:absolute;left:0;top:0;width:96px;pointer-events:none;overflow:visible}
.commits{margin:0;padding:0;list-style:none}
.commits li{display:grid;grid-template-columns:64px minmax(0,1fr);gap:.75rem;align-items:baseline;padding:.45rem 0 .45rem 96px;min-height:44px}
.commits time,.commits .when{color:var(--muted);font-family:var(--mono);font-size:.8rem}
.commits .c{color:var(--muted);font-size:.95rem}
.commits b{font-weight:500;color:var(--text)}
.tip{font-family:var(--mono);font-size:.72rem;color:var(--amber);border:1px solid var(--amber);border-radius:999px;padding:.05rem .45rem;margin-left:.35rem;white-space:nowrap;vertical-align:middle}
.tip.alt{color:var(--cyan);border-color:var(--cyan)}
.tip.tag{color:var(--muted);border-color:var(--border)}
@media (max-width:719px){.commits li{grid-template-columns:1fr;gap:.1rem;padding-left:74px}.graph{width:74px}}

.cta{display:inline-block;border:1px solid var(--amber);color:var(--amber);padding:.5rem 1rem;border-radius:6px;font-weight:500;margin:.25rem .6rem .25rem 0}
.cta:hover{background:var(--amber);color:var(--bg);border-bottom-color:var(--amber)}


/* the host: a cut-out of Srix under the menu, lit by a beam that follows the pointer, with an aside per section */
.host{margin:1.75rem 0 0;width:184px;position:relative}
.say{font-family:var(--mono);font-size:.76rem;line-height:1.45;color:var(--amber);margin:0 0 .75rem;padding:.5rem .65rem;border:1px solid var(--border);border-radius:6px;background:var(--surface);position:relative;min-height:3.9em}
.say::after{content:"";position:absolute;left:22px;bottom:-6px;width:10px;height:10px;background:var(--surface);border-right:1px solid var(--border);border-bottom:1px solid var(--border);transform:rotate(45deg)}
.say-cursor{display:inline-block;width:.5em;height:1em;background:var(--amber);vertical-align:-.15em;margin-left:2px;animation:blink 1s steps(2) infinite}
@keyframes blink{to{opacity:0}}
.who{position:relative;width:184px;aspect-ratio:3/4;--px:0;--py:0;
  -webkit-mask-image:linear-gradient(to bottom,#000 62%,transparent 100%);mask-image:linear-gradient(to bottom,#000 62%,transparent 100%)}
.who picture{display:contents}
.who img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:50% 0;opacity:.9;filter:saturate(.85);transform:translate(calc(var(--px)*5px),calc(var(--py)*4px));transition:opacity .4s ease,filter .4s ease}
.who.near img{opacity:1;filter:saturate(1) brightness(1.06)}
.host-end{display:none}
@media (max-width:1023px){.host-end{display:block;margin:2rem 0 0}}
@media (min-width:1024px) and (max-height:740px){.rail .host{display:none}}
@media (prefers-reduced-motion:reduce){.say-cursor{animation:none}.who img{transition:none;transform:none}}
/* trivia: ask him, or find it in the page */
.who,.say{cursor:pointer}
.say{transition:border-color .25s ease}
.say.telling{border-color:var(--amber)}
.ask{display:block;margin:.45rem 0 0;padding:0;font:inherit;font-size:.7rem;color:var(--muted);background:none;border:0;cursor:pointer;text-align:left;line-height:1.4}
.ask:hover,.say:hover .ask{color:var(--amber)}
[data-trivia]{cursor:help}
b[data-trivia],h2[data-trivia]{text-decoration:underline dotted;text-decoration-color:color-mix(in srgb,var(--amber) 55%,transparent);text-underline-offset:4px;text-decoration-thickness:1px}
b[data-trivia]:hover,h2[data-trivia]:hover{text-decoration-color:var(--amber)}
figure[data-trivia] img,.cover[data-trivia]{transition:box-shadow .2s ease}
figure[data-trivia]:hover img,.cover[data-trivia]:hover{box-shadow:0 0 0 2px var(--amber)}
.hint{position:absolute;z-index:30;max-width:260px;padding:.55rem .7rem;border:1px solid var(--border);border-radius:6px;background:var(--surface);color:var(--amber);font-family:var(--mono);font-size:.76rem;line-height:1.45;box-shadow:0 8px 24px rgba(0,0,0,.35)}
.hint::before{content:"";position:absolute;left:18px;top:-6px;width:10px;height:10px;background:var(--surface);border-left:1px solid var(--border);border-top:1px solid var(--border);transform:rotate(45deg)}
footer{padding:32px 0 44px;border-top:1px solid var(--border);color:var(--muted);font-size:.9rem}
footer p{margin:0 0 .25rem}

/* subpages */
.pagehead{padding:40px 0 8px}
.pagehead h1{font-size:clamp(2.2rem,5vw,3rem);letter-spacing:-.03em;margin:0 0 .4rem}
.pagehead .lede{font-size:1.1rem;color:var(--muted);margin-bottom:1rem}
.pagehead p{max-width:62ch}
.rail .up{margin-bottom:.9rem}
.rail .up a{color:var(--amber)}
.stamp-line{font-family:var(--mono);font-size:.8rem;color:var(--amber);margin:0 0 1rem}


.page404{min-height:50vh}