@font-face{font-family:'Bricolage Grotesque';font-style:normal;font-weight:400;font-display:swap;src:url(../fonts/bricolage-grotesque-latin-400-normal.woff2) format('woff2')}
@font-face{font-family:'Bricolage Grotesque';font-style:normal;font-weight:500;font-display:swap;src:url(../fonts/bricolage-grotesque-latin-500-normal.woff2) format('woff2')}
@font-face{font-family:'Bricolage Grotesque';font-style:normal;font-weight:600;font-display:swap;src:url(../fonts/bricolage-grotesque-latin-600-normal.woff2) format('woff2')}
@font-face{font-family:'Bricolage Grotesque';font-style:normal;font-weight:800;font-display:swap;src:url(../fonts/bricolage-grotesque-latin-800-normal.woff2) format('woff2')}
/* Fonts are bundled in ../fonts so the site works offline. */
@font-face{font-family:'Instrument Serif';font-style:normal;font-weight:400;font-display:swap;src:url(../fonts/instrument-serif-latin-400-normal.woff2) format('woff2')}
@font-face{font-family:'Instrument Serif';font-style:italic;font-weight:400;font-display:swap;src:url(../fonts/instrument-serif-latin-400-italic.woff2) format('woff2')}
@font-face{font-family:'Instrument Sans';font-style:normal;font-weight:400;font-display:swap;src:url(../fonts/instrument-sans-latin-400-normal.woff2) format('woff2')}
@font-face{font-family:'Instrument Sans';font-style:normal;font-weight:500;font-display:swap;src:url(../fonts/instrument-sans-latin-500-normal.woff2) format('woff2')}
@font-face{font-family:'Instrument Sans';font-style:normal;font-weight:600;font-display:swap;src:url(../fonts/instrument-sans-latin-600-normal.woff2) format('woff2')}
@font-face{font-family:'IBM Plex Mono';font-style:normal;font-weight:400;font-display:swap;src:url(../fonts/ibm-plex-mono-latin-400-normal.woff2) format('woff2')}
@font-face{font-family:'IBM Plex Mono';font-style:normal;font-weight:500;font-display:swap;src:url(../fonts/ibm-plex-mono-latin-500-normal.woff2) format('woff2')}
@font-face{font-family:'Noto Sans Tamil';font-style:normal;font-weight:400;font-display:swap;src:url(../fonts/noto-sans-tamil-tamil-400-normal.woff2) format('woff2')}
@font-face{font-family:'Noto Sans Tamil';font-style:normal;font-weight:500;font-display:swap;src:url(../fonts/noto-sans-tamil-tamil-500-normal.woff2) format('woff2')}
@font-face{font-family:'Noto Sans Tamil';font-style:normal;font-weight:600;font-display:swap;src:url(../fonts/noto-sans-tamil-tamil-600-normal.woff2) format('woff2')}
@font-face{font-family:'Noto Sans Malayalam';font-style:normal;font-weight:400;font-display:swap;src:url(../fonts/noto-sans-malayalam-malayalam-400-normal.woff2) format('woff2')}
@font-face{font-family:'Noto Sans Malayalam';font-style:normal;font-weight:500;font-display:swap;src:url(../fonts/noto-sans-malayalam-malayalam-500-normal.woff2) format('woff2')}
@font-face{font-family:'Noto Sans Malayalam';font-style:normal;font-weight:600;font-display:swap;src:url(../fonts/noto-sans-malayalam-malayalam-600-normal.woff2) format('woff2')}
@font-face{font-family:'Noto Sans Devanagari';font-style:normal;font-weight:400;font-display:swap;src:url(../fonts/noto-sans-devanagari-devanagari-400-normal.woff2) format('woff2')}
@font-face{font-family:'Noto Sans Devanagari';font-style:normal;font-weight:500;font-display:swap;src:url(../fonts/noto-sans-devanagari-devanagari-500-normal.woff2) format('woff2')}
@font-face{font-family:'Noto Sans Devanagari';font-style:normal;font-weight:600;font-display:swap;src:url(../fonts/noto-sans-devanagari-devanagari-600-normal.woff2) format('woff2')}

/* Layout concept: bright blue-white page, cobalt arch behind the portrait, rotating multilingual word sphere, then plain numbered log and small working demos. */
:root{
  --bg:#EEF3FF;
  --paper:#FFFFFF;
  --ink:#0B1020;
  --ink2:#2A3150;
  --accent:#2F5BFF;
  --tint:#DCE5FF;
  --line:rgba(11,16,32,.22);
  --serif:'Instrument Serif',Georgia,serif;
  --sans:'Instrument Sans','Noto Sans Tamil','Noto Sans Malayalam','Noto Sans Devanagari',system-ui,sans-serif;
  --mono:'IBM Plex Mono',ui-monospace,monospace;
  --gut:16px;
}
@media (max-width:480px){.nav ul{gap:8px 18px;font-size:15px}.nav .pill{padding:8px 14px}}
@media (min-width:768px){:root{--gut:32px}}
@media (min-width:1100px){:root{--gut:64px}}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{background:var(--bg);color:var(--ink);font-family:var(--sans);font-size:17px;line-height:1.55;-webkit-text-size-adjust:100%}
a{color:var(--ink)}
a:hover{color:#1F3FBF}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,.stage:focus-visible{outline:2px solid var(--ink);outline-offset:3px}
h1,h2,h3,p{margin:0}
.wrap{max-width:1360px;margin:0 auto;padding-left:max(var(--gut),env(safe-area-inset-left,0px));padding-right:max(var(--gut),env(safe-area-inset-right,0px))}
.mono{font-family:var(--mono);font-size:12px;letter-spacing:.12em;text-transform:uppercase;color:var(--ink2)}

/* nav */
.nav{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px 28px;padding-top:24px;padding-bottom:8px}
.logo{font-family:var(--serif);font-size:34px;line-height:1;text-decoration:none}
.nav ul{display:flex;flex-wrap:wrap;align-items:center;gap:8px 28px;list-style:none;margin:0;padding:0;font-weight:500;font-size:16px}
.nav a{text-decoration:none}
.nav .pill{border:1.5px solid var(--ink);padding:9px 18px;border-radius:10px}

/* hero */
.hero{display:grid;grid-template-columns:minmax(0,1fr);gap:8px;align-items:end;padding-top:24px}
.hero-text{display:flex;flex-direction:column;gap:18px;align-self:start;padding-bottom:24px}
.hero h1{font-family:var(--serif);font-weight:400;font-size:clamp(88px,22vw,128px);line-height:.88;letter-spacing:-.02em}
.hero .sub{font-family:var(--serif);font-style:italic;font-size:40px;line-height:1}
.hero p.lead{color:var(--ink2);font-size:17px;max-width:360px}
.btn{display:inline-block;font:600 16px var(--sans);text-decoration:none;padding:14px 24px;border-radius:10px;border:1.5px solid var(--ink);background:var(--paper);color:var(--ink);cursor:pointer}
.btn.dark{background:var(--ink);color:#fff}
.btn.dark:hover{color:#fff;background:#1B2342}
.btn.small{padding:9px 16px;font-size:14px}
.stage{position:relative;isolation:isolate;width:min(100%,640px);aspect-ratio:640/760;margin:0 auto;touch-action:pan-y;user-select:none;-webkit-user-select:none;cursor:grab}
.stage.drag{cursor:grabbing}
.arch{position:absolute;left:18.75%;width:62.5%;top:8%;bottom:0;background:var(--accent);border-radius:9999px 9999px 0 0;z-index:0}
.me{position:absolute;left:50%;bottom:0;height:96%;width:auto;transform:translateX(-50%);z-index:200;pointer-events:none}
.words{position:absolute;inset:0}
.w{position:absolute;display:flex;align-items:baseline;gap:calc(8px*var(--k,1));white-space:nowrap;padding:calc(8px*var(--k,1)) calc(16px*var(--k,1));border-radius:calc(10px*var(--k,1));font-size:calc(21px*var(--k,1));font-weight:500;background:#fff;color:var(--ink);border:1px solid var(--ink);box-shadow:calc(3px*var(--k,1)) calc(3px*var(--k,1)) 0 var(--ink);pointer-events:none;will-change:transform}
.w i{font:normal 500 calc(10px*var(--k,1)) var(--mono);letter-spacing:.1em;text-transform:uppercase;opacity:.7}
.w.term{background:var(--ink);color:#fff;font-family:var(--mono);font-size:calc(18px*var(--k,1))}
.stage.compact .w i{display:none}
.hint{position:absolute;right:0;bottom:12px;z-index:500;font-family:var(--mono);font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--ink);padding:0 6px 0 0;pointer-events:none}
@media (min-width:960px){
  .hero{grid-template-columns:minmax(0,400px) minmax(0,1fr);gap:24px;padding-top:40px}
  .hero-text{padding-bottom:80px}
  .hero h1{font-size:clamp(96px,9.2vw,128px)}
  .stage{margin:0 auto}
}

/* sections */
section{padding-top:72px;padding-bottom:80px}
.paper{background:var(--paper)}
.sec-head{display:flex;flex-direction:column;gap:10px;margin-bottom:36px;max-width:640px}
.sec-head h2{font-family:var(--serif);font-weight:400;font-size:clamp(48px,8vw,72px);line-height:.95;letter-spacing:-.01em}
.sec-head p{color:var(--ink2)}

/* activity log */
.log{list-style:none;margin:0;padding:0;border-bottom:1px solid var(--line)}
.row{display:grid;grid-template-columns:32px minmax(0,1fr);gap:6px 14px;padding:22px 0;border-top:1px solid var(--line)}
.row .n{font-family:var(--mono);font-size:13px;color:var(--ink2);padding-top:6px}
.row h3{font-size:22px;font-weight:600;line-height:1.25}
.row .d{color:var(--ink2);margin-top:4px;max-width:560px}
.row .side{grid-column:2;display:flex;flex-wrap:wrap;align-items:center;gap:10px 14px;margin-top:8px}
.tag{font-family:var(--mono);font-size:11px;letter-spacing:.1em;text-transform:uppercase;border:1px solid var(--ink);padding:4px 9px;border-radius:999px;white-space:nowrap}
.tag.later{background:var(--tint)}
@media (min-width:760px){
  .row{grid-template-columns:48px minmax(0,1fr) 300px;gap:6px 24px}
  .row .side{grid-column:3;grid-row:1;flex-direction:column;align-items:flex-end;margin-top:0;gap:10px}
}

/* demos */
.demo{background:var(--paper);border:1px solid var(--ink);border-radius:10px;padding:20px;margin-bottom:28px}
@media (min-width:768px){.demo{padding:28px}}
.demo h3{font-family:var(--serif);font-weight:400;font-size:40px;line-height:1}
.demo .cap{color:var(--ink2);margin-top:8px;max-width:640px}
.demo .head{display:flex;flex-direction:column;gap:6px;margin-bottom:20px}
.ctrl{display:flex;flex-wrap:wrap;align-items:flex-end;gap:12px 16px;margin-bottom:16px}
.ctrl label{display:flex;flex-direction:column;gap:5px;font-family:var(--mono);font-size:12px;letter-spacing:.08em;text-transform:uppercase;color:var(--ink2)}
.ctrl input[type=text],.ctrl select{font:500 17px var(--sans);padding:9px 12px;border:1.5px solid var(--ink);border-radius:10px;background:#fff;color:var(--ink);min-width:0}
.ctrl input[type=text]{width:150px}
.scroll{overflow-x:auto;max-width:100%}
.note{margin-top:14px;font-size:15px;color:var(--ink2);min-height:2.9em}
.params{display:flex;flex-wrap:wrap;gap:6px 28px;margin-top:16px;font-family:var(--mono);font-size:12px;color:var(--ink2)}
svg.trellis{display:block;min-width:520px;width:100%;height:auto}
svg.trellis text{font-family:var(--mono);fill:var(--ink)}
svg.trellis .nd{fill:#fff;stroke:var(--ink);stroke-width:1.5}
svg.trellis .on .nd{fill:var(--accent)}
svg.trellis .on text{fill:#fff}
.res{margin-top:12px;font-weight:600}

.chips{display:flex;flex-wrap:wrap;gap:8px;align-items:stretch;margin:6px 0 14px}
.chip{display:flex;flex-direction:column;align-items:center;gap:2px;border:1.5px solid var(--ink);border-radius:10px;padding:8px 16px;background:#fff;min-width:64px}
.chip b{font-size:26px;font-weight:500;line-height:1.2}
.chip span{font-family:var(--mono);font-size:10px;letter-spacing:.1em;text-transform:uppercase;color:var(--ink2)}
.chip.stem{background:var(--tint)}
.surface{font-size:clamp(40px,9vw,64px);font-weight:500;line-height:1.15}
.gloss{font-family:var(--mono);font-size:13px;color:var(--ink2)}
.state{display:inline-block;font-family:var(--mono);font-size:12px;letter-spacing:.08em;text-transform:uppercase;padding:5px 10px;border-radius:999px;border:1px solid var(--ink);margin-top:10px}
.state.ok{background:var(--tint)}
.state.no{background:var(--ink);color:#fff}
.fst{display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin-top:20px;font-family:var(--mono);font-size:13px}
.fst .s{border:1.5px solid var(--ink);border-radius:999px;padding:7px 14px;background:#fff}
.fst .s.on{background:var(--accent);color:#fff}
.fst .a{color:var(--ink2)}
.radios{display:flex;flex-wrap:wrap;gap:8px}
.radios label{flex-direction:row;align-items:center;gap:6px;text-transform:none;letter-spacing:0;font-family:var(--sans);font-size:16px;color:var(--ink);border:1.5px solid var(--ink);border-radius:10px;padding:7px 12px;background:#fff;cursor:pointer}
.radios input{accent-color:var(--accent)}
.radios label:has(input:checked){background:var(--tint)}

table.dp{border-collapse:collapse;font-family:var(--mono);font-size:14px}
table.dp td,table.dp th{width:40px;height:40px;text-align:center;border:1px solid var(--line);font-weight:400;padding:0}
table.dp th{background:var(--bg);font-family:var(--sans);font-size:17px;font-weight:600}
table.dp td.p{background:var(--accent);color:#fff;font-weight:600}
.ops{display:flex;flex-wrap:wrap;gap:6px;margin-top:14px}
.ops span{font-family:var(--mono);font-size:13px;border:1px solid var(--ink);border-radius:8px;padding:4px 10px;background:#fff}
.ops span.e{background:var(--tint)}

.ctrl input.wide[type=text]{width:min(420px,100%)}
.bars{display:flex;flex-direction:column;gap:8px}
.bar{display:grid;grid-template-columns:112px minmax(0,1fr) 58px;gap:10px;align-items:center;font-size:14px}
@media (min-width:600px){.bar{grid-template-columns:150px minmax(0,1fr) 64px}}
.bar .l{font-weight:500;white-space:nowrap}
.bar .t{height:22px;background:var(--bg);border:1px solid var(--line);border-radius:6px;overflow:hidden}
.bar .t i{display:block;height:100%;background:var(--accent)}
.bar .v{font-family:var(--mono);font-size:13px;text-align:right}
table.dp.vt td,table.dp.vt th{width:auto;min-width:84px;padding:6px 10px;font-size:14px}
table.dp.vt th{font-family:var(--mono);font-weight:500;font-size:12px}
table.dp.vt td.p{background:var(--accent);color:#fff}
.two{display:grid;grid-template-columns:minmax(0,1fr);gap:28px}
@media (min-width:860px){.two{grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:48px}}
.langs{list-style:none;margin:0;padding:0}
.langs li{display:grid;grid-template-columns:48px minmax(0,1fr);gap:12px;padding:12px 0;border-top:1px solid var(--line);font-size:22px;font-weight:500;align-items:baseline}
.langs li:last-child{border-bottom:1px solid var(--line)}
.langs li i{font:normal 500 11px var(--mono);letter-spacing:.1em;text-transform:uppercase;color:var(--ink2)}
.maps{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:10px}
.maps li{display:flex;flex-wrap:wrap;gap:4px 10px;align-items:baseline;border-top:1px solid var(--line);padding-top:10px}
.maps b{font-weight:600}
.maps span.ar{font-family:var(--mono);color:var(--ink2)}

/* about, contact */
.about p{font-size:20px;max-width:620px}
.about p+p{margin-top:14px}
footer{padding-top:28px;padding-bottom:36px;border-top:1px solid var(--line);background:var(--paper)}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}

/* ---- Orange theme (overrides): white page, orange circle behind the portrait, black pills ---- */
:root{--bg:#FFF4EC;--paper:#fff;--ink:#111;--ink2:#3A3A3A;--accent:#FF5A00;--tint:#FFE3D1;--line:rgba(17,17,17,.2);
--serif:'Bricolage Grotesque','Noto Sans Tamil','Noto Sans Malayalam','Noto Sans Devanagari',system-ui,sans-serif;
--sans:'Bricolage Grotesque','Noto Sans Tamil','Noto Sans Malayalam','Noto Sans Devanagari',system-ui,sans-serif}
body{background:#fff}a:hover{color:#B83C00}
.logo{font-weight:800;letter-spacing:-.04em;font-size:30px}
.nav .pill{background:#111;color:#fff;border:0;border-radius:999px;padding:12px 24px}.nav .pill:hover{color:#fff;background:#333}
.hero h1{font-weight:800;letter-spacing:-.045em;line-height:.9}
.hero .sub{font-style:normal;font-weight:500;letter-spacing:-.02em;font-size:36px}
.btn{border-radius:999px}.btn.dark{background:#111}.btn.accent{background:var(--accent);border-color:var(--accent);color:#111}
.arch{left:50%;transform:translateX(-50%);width:94%;aspect-ratio:1;top:14%;bottom:auto;border-radius:50%}
.w{border:1px solid rgba(17,17,17,.14);border-radius:999px;box-shadow:0 calc(8px*var(--k,1)) calc(22px*var(--k,1)) rgba(17,17,17,.12)}
.w.term{background:#111;border-color:#111}
.sec-head h2,.demo h3{font-weight:800;letter-spacing:-.03em}.demo h3{font-size:34px}
.demo{border-radius:18px;border:1px solid var(--line)}
.ctrl input[type=text],.ctrl select,.radios label,.chip,.fst .s{border-radius:12px}
.hand{margin:20px 0 0}.hand img{display:block;max-width:100%;max-height:560px;border:1px solid var(--line);border-radius:12px}
.hand figcaption{font-family:var(--mono);font-size:12px;color:var(--ink2);margin-top:6px}
.hand.missing img{display:none}.hand.missing{border:2px dashed var(--accent);border-radius:12px;padding:18px;background:var(--tint)}
.pdfbox{width:100%;height:78vh;min-height:460px;border:1px solid var(--line);border-radius:12px;background:#f5f5f5}
.acts{display:flex;flex-wrap:wrap;gap:10px;margin:0 0 14px}
.wr{max-width:820px}.wr h3{font-size:26px;font-weight:800;letter-spacing:-.02em;margin:40px 0 10px}.wr h3 span{font-family:var(--mono);font-size:13px;color:var(--accent);margin-right:10px}
.wr p,.wr li{color:var(--ink);margin-bottom:10px}.wr ul,.wr ol{padding-left:22px;margin:0 0 12px}
.wr table{border-collapse:collapse;width:100%;font-size:15px;margin:10px 0 16px}.wr th,.wr td{border:1px solid var(--line);padding:8px 10px;text-align:left;vertical-align:top}.wr th{background:var(--tint)}
.vid{border:2px dashed var(--accent);border-radius:12px;background:var(--tint);padding:22px;font-weight:600}
.pipe{display:flex;flex-wrap:wrap;gap:8px;align-items:center;font-family:var(--mono);font-size:13px;margin:10px 0 16px}
.pipe b{border:1.5px solid #111;border-radius:999px;padding:6px 12px;background:#fff;font-weight:500}.pipe i{font-style:normal;color:var(--ink2)}
.scroll .wr{min-width:0}
.hand.missing .ok,.hand:not(.missing) .no{display:none}