/* Velosyti — site styles. Brand violet from the logo (#3E318F → #4535C8); kolam motif: dots joined by one forward line. */
:root{
  --paper:#F7F6FB; --paper-2:#EFEDF7; --card:#FFFFFF;
  --ink:#1A1848; --ink-2:#4A4870; --ink-3:#7C7A9C; --line:#DEDBEC;
  --rani:#D81F6A; --peacock:#00807A; --turmeric:#E9A21F; --violet:#4535C8;
  --rani-soft:#FCE4EE; --peacock-soft:#DDF2F0; --turmeric-soft:#FDF1D8; --violet-soft:#E8E5FB;
  --brand-deep:#3E318F; --brand:#4535C8; --grad:linear-gradient(100deg,#3E318F,#4535C8 60%,#5B4BE0);
  --night:#14112E; --night-2:#1E1947;
  --display:"Sora", "Noto Sans Tamil", system-ui, sans-serif;
  --read:"Newsreader", "Noto Serif Tamil", Georgia, serif;
  --r-sm:6px; --r-md:14px; --r-lg:28px;
  --wrap:1180px; --gut:clamp(16px,4vw,40px);
  color-scheme:light;
}
@media (prefers-color-scheme:dark){ :root:not([data-theme="light"]){
  --paper:#100E26; --paper-2:#17143A; --card:#1C1845; --ink:#F1F0FA; --ink-2:#C4C2DE; --ink-3:#8F8DB2; --line:#2F2D63;
  --rani:#FF4F93; --peacock:#2CC7BD; --turmeric:#FFC24F; --violet:#9A8FFF;
  --rani-soft:#3A1A3F; --peacock-soft:#143A45; --turmeric-soft:#3A3024; --violet-soft:#2A2566; color-scheme:dark;}}
:root[data-theme="dark"]{
  --paper:#100E26; --paper-2:#17143A; --card:#1C1845; --ink:#F1F0FA; --ink-2:#C4C2DE; --ink-3:#8F8DB2; --line:#2F2D63;
  --rani:#FF4F93; --peacock:#2CC7BD; --turmeric:#FFC24F; --violet:#9A8FFF;
  --rani-soft:#3A1A3F; --peacock-soft:#143A45; --turmeric-soft:#3A3024; --violet-soft:#2A2566; color-scheme:dark;}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--ink);font:17px/1.55 var(--display);-webkit-font-smoothing:antialiased;font-optical-sizing:auto}
img{max-width:100%;display:block}
a{color:inherit}
:focus-visible{outline:3px solid var(--violet);outline-offset:3px;border-radius:4px}
.wrap{max-width:var(--wrap);margin:0 auto;padding-inline:var(--gut)}
.narrow{max-width:720px}

/* ---------- header ---------- */
.site-head{position:sticky;top:env(safe-area-inset-top,0px);z-index:50;background:color-mix(in srgb,var(--night) 92%,transparent);backdrop-filter:blur(14px);border-bottom:1px solid #2A2560;color:#F4F3FB}
.site-head .wrap{display:flex;align-items:center;gap:28px;height:68px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;font-weight:700;font-size:21px;letter-spacing:-.02em}
.brand .mark{height:30px;width:auto}.brand .word{height:22px;width:auto}
.brand .word.on-dark{display:none}
:root[data-theme="dark"] .brand .word.on-light{display:none}:root[data-theme="dark"] .brand .word.on-dark{display:block}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]) .brand .word.on-light{display:none}:root:not([data-theme="light"]) .brand .word.on-dark{display:block}}
.nav{display:flex;gap:4px;margin-left:auto;align-items:center}
.nav a{text-decoration:none;font-size:14.5px;padding:8px 11px;white-space:nowrap;border-radius:999px;color:#C9C6E4}
.nav a:hover{color:#fff;background:#262052}
.nav a[aria-current="page"]{color:#fff;background:#262052;font-weight:600}
.nav a.cta{background:var(--grad);color:#fff;font-weight:600;margin-left:8px}
.nav a.cta:hover{filter:brightness(1.15)}
.theme-btn,.menu-btn{border:1px solid #3A3470;background:transparent;color:#F4F3FB;border-radius:999px;width:38px;height:38px;cursor:pointer;display:grid;place-items:center;font-size:16px}
.menu-btn{display:none}
@media (max-width:1100px){
  .menu-btn{display:grid;margin-left:auto}
  .nav{position:fixed;inset:68px 0 auto 0;flex-direction:column;align-items:stretch;background:var(--night);padding:12px var(--gut) 24px;border-bottom:1px solid #2A2560;display:none}
  .nav.open{display:flex}
  .nav a{font-size:18px;padding:12px}
  .nav a.cta{margin:8px 0 0;text-align:center}
}

/* ---------- type ---------- */
h1,h2,h3,h4{font-family:var(--display);letter-spacing:-.03em;line-height:1.1;margin:0 0 .4em;font-weight:600}
.h-hero{font-size:clamp(42px,6.6vw,92px);letter-spacing:-.045em;line-height:1;font-weight:700}
.h-page{font-size:clamp(38px,5.4vw,72px);letter-spacing:-.04em;line-height:1.02;font-weight:700}
.h-sec{font-size:clamp(30px,3.8vw,50px)}
.h-card{font-size:24px;letter-spacing:-.02em}
.lede{font-size:clamp(18px,1.6vw,22px);color:var(--ink-2);max-width:60ch;line-height:1.5}
.small{font-size:14px;color:var(--ink-3)}
.kicker{font-size:15px;color:var(--ink-3);margin:0 0 14px;font-weight:500}
.ta{font-family:"Noto Sans Tamil",var(--display)}

/* ---------- layout ---------- */
section{padding-block:clamp(64px,9vw,120px)}
.sec-tight{padding-block:clamp(40px,6vw,72px)}
.sec-head{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:end;margin-bottom:48px}
@media (max-width:820px){.sec-head{grid-template-columns:1fr;gap:12px}}
.band{background:var(--paper-2)}
.band-ink{background:var(--night);color:#F1F0FA}
.band-ink .lede,.band-ink .small,.band-ink .kicker{color:#C4C2DE}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
@media (max-width:980px){.grid-3,.grid-4{grid-template-columns:repeat(2,1fr)}}
@media (max-width:640px){.grid-2,.grid-3,.grid-4{grid-template-columns:1fr}}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;gap:10px;padding:14px 22px;border-radius:999px;font:600 16px var(--display);text-decoration:none;border:1.5px solid var(--ink);cursor:pointer;background:transparent;color:var(--ink);transition:background .2s,color .2s}
.btn:hover{background:var(--ink);color:var(--paper)}
.btn.solid{background:var(--grad);border-color:transparent;color:#fff}
.btn.solid:hover{filter:brightness(1.15);color:#fff}
.band-ink .btn{border-color:#F1F0FA;color:#F1F0FA}
.band-ink .btn:hover{background:#F1F0FA;color:var(--night)}
.btn-row{display:flex;gap:12px;flex-wrap:wrap;margin-top:32px}
.link{font-weight:600;text-decoration:underline;text-decoration-thickness:1.5px;text-underline-offset:4px;text-decoration-color:var(--brand)}

/* ---------- hero (reversed: dark ground, white logo) ---------- */
.hero{padding-block:clamp(40px,6vw,80px) 0;overflow:hidden;color:#F4F3FB;position:relative;
  background:radial-gradient(900px 520px at 85% 30%,#3E318F 0%,transparent 65%),radial-gradient(700px 500px at 10% 110%,#2A2170 0%,transparent 70%),var(--night)}
.hero-grid{display:grid;grid-template-columns:1.05fr 1fr;gap:32px;align-items:center}
@media (max-width:980px){.hero-grid{grid-template-columns:1fr}}
.hero .lede{margin-top:24px;color:#C9C6E4}
.hero .kicker{color:#A9A4D6}
.hero .h-hero .grad-text{background:linear-gradient(100deg,#A79CFF,#7C6CFF);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero .btn{border-color:#F4F3FB;color:#F4F3FB}.hero .btn:hover{background:#F4F3FB;color:var(--night)}
.hero .btn.solid{border-color:transparent}
.hero-logo{height:64px;width:auto;margin-bottom:28px}
.kolam{width:100%;height:auto;overflow:visible}
.kolam .dot{fill:#fff;opacity:.16}
.kolam .node{cursor:pointer}
.kolam .node circle.halo{fill:var(--night);stroke:#5A5390;stroke-width:1.5;transition:stroke .2s}
.kolam .node:hover circle.halo,.kolam .node:focus circle.halo{stroke:#A79CFF;stroke-width:2.5}
.kolam .node text{font:600 13px var(--display);fill:#F4F3FB;paint-order:stroke;stroke:var(--night);stroke-width:5px;stroke-linejoin:round}
.kolam .node text.sub{font-weight:400;font-size:11px;fill:#A9A4D6}
.kolam .thread{fill:none;stroke-width:3.5;stroke-linecap:round;stroke-linejoin:round}
.kolam .thread.a{stroke:url(#kg)} .kolam .thread.b{stroke:var(--peacock)} .kolam .thread.c{stroke:#F5B942}
:root .hero .kolam .thread.b{stroke:#2CC7BD}
.draw{stroke-dasharray:var(--len);stroke-dashoffset:var(--len);animation:draw 3.2s cubic-bezier(.6,.1,.3,1) forwards}
.draw.d2{animation-delay:.5s}.draw.d3{animation-delay:1s}
@keyframes draw{to{stroke-dashoffset:0}}
.pop{opacity:0;transform-box:fill-box;transform-origin:center;animation:pop .5s ease forwards}
@keyframes pop{from{opacity:0;transform:scale(.6)}to{opacity:1;transform:none}}
@media (prefers-reduced-motion:reduce){.draw{animation:none;stroke-dashoffset:0}.pop{animation:none;opacity:1}.marquee-track{animation:none!important}}

/* ---------- ticker of live addresses ---------- */
.marquee{border-top:1px solid #2F2A5E;overflow:hidden;margin-top:56px;background:rgba(255,255,255,.03)}
.marquee-track{display:flex;gap:48px;width:max-content;padding:16px 0;animation:slide 60s linear infinite}
.marquee-track span{font-size:15px;color:#C9C6E4;white-space:nowrap;display:flex;align-items:center;gap:10px}
.marquee-track span::before{content:"";width:8px;height:8px;border-radius:50%;background:#2CC7BD}
.marquee:hover .marquee-track{animation-play-state:paused}
@keyframes slide{to{transform:translateX(-50%)}}

/* ---------- product / case tiles ---------- */
.tile{background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;text-decoration:none;display:flex;flex-direction:column;transition:border-color .2s,transform .25s}
.tile:hover{border-color:var(--ink-3)}
.tile .shot{aspect-ratio:16/10;overflow:hidden;background:var(--paper-2);position:relative}
.tile .shot img{width:100%;height:100%;object-fit:cover;object-position:top;transition:transform .6s ease}
.tile:hover .shot img{transform:scale(1.03)}
.tile .body{padding:22px 24px 26px;display:flex;flex-direction:column;gap:8px;flex:1}
.tile .body p{margin:0;color:var(--ink-2);font-size:16px}
.tile .meta{display:flex;gap:8px;flex-wrap:wrap;margin-top:auto;padding-top:12px}
.chip{font-size:13px;padding:4px 10px;border-radius:999px;background:var(--paper-2);color:var(--ink-2);white-space:nowrap}
.chip.live{background:var(--peacock-soft);color:var(--peacock)}
.chip.pilot{background:var(--turmeric-soft);color:color-mix(in srgb,var(--turmeric) 60%,var(--ink))}
.chip.proto{background:var(--violet-soft);color:var(--violet)}
.chip.client{background:var(--rani-soft);color:var(--rani)}
.tile.feature{grid-column:span 2;display:grid;grid-template-columns:1.3fr 1fr}
.tile.feature .shot{aspect-ratio:auto;min-height:340px}
@media (max-width:820px){.tile.feature{grid-column:auto;grid-template-columns:1fr}.tile.feature .shot{min-height:220px}}
.swatch{position:absolute;inset:auto 16px 16px auto;width:14px;height:14px;border-radius:50%;box-shadow:0 0 0 4px var(--card)}

/* ---------- filters ---------- */
.filters{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:32px}
.filters button{font:500 15px var(--display);padding:9px 16px;border-radius:999px;border:1px solid var(--line);background:var(--card);color:var(--ink-2);cursor:pointer}
.filters button[aria-pressed="true"]{background:var(--ink);color:var(--paper);border-color:var(--ink)}

/* ---------- pillars (product vs services) ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line)}
.split > div{padding:clamp(28px,4vw,56px)}
.split .a{background:var(--grad);color:#fff}
.split .b{background:var(--card)}
.split .a .small{color:#ffffffcc}
.split ul{padding:0;list-style:none;margin:24px 0 0}
.split li{padding:12px 0;border-top:1px solid currentColor;border-color:color-mix(in srgb,currentColor 22%,transparent);display:flex;justify-content:space-between;gap:16px}
@media (max-width:820px){.split{grid-template-columns:1fr}}

/* ---------- flowchart ---------- */
.flow{display:flex;gap:0;align-items:stretch;overflow-x:auto;padding-bottom:8px}
.flow .step{flex:1 0 180px;position:relative;padding:22px 20px 22px 0}
.flow .step .n{width:44px;height:44px;border-radius:50%;display:grid;place-items:center;font-weight:700;background:var(--card);border:2px solid var(--ink);position:relative;z-index:1;margin-bottom:18px}
.flow .step::before{content:"";position:absolute;top:44px;left:44px;right:0;border-top:2px dashed var(--line)}
.flow .step:last-child::before{display:none}
.flow .step h4{font-size:19px;margin-bottom:6px}
.flow .step p{margin:0;font-size:15px;color:var(--ink-2);max-width:26ch}
.flow .step.hot .n{background:var(--grad);border-color:var(--brand);color:#fff}
.flow .step .wk{font-size:13px;color:var(--peacock);font-weight:600;margin-bottom:4px;display:block}
.band-ink .flow .step p{color:#B9B6D6}
.band-ink .flow .step .n{background:var(--night);border-color:#F1F0FA}
.band-ink .flow .step.hot .n{background:var(--grad);border-color:#8C80FF}
.band-ink .flow .step::before{border-color:#4A4577}
.band-ink .flow .step .wk{color:#8C80FF}

.diagram{background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);padding:clamp(16px,3vw,32px);overflow-x:auto}
.diagram svg{min-width:720px;width:100%;height:auto;display:block}
.diagram text{font-family:var(--display)}
.dg-box{fill:var(--paper);stroke:var(--line);stroke-width:1.5}
.dg-box.hot{fill:var(--rani-soft);stroke:var(--rani)}
.dg-box.ok{fill:var(--peacock-soft);stroke:var(--peacock)}
.dg-box.warn{fill:var(--turmeric-soft);stroke:var(--turmeric)}
.dg-box.ai{fill:var(--violet-soft);stroke:var(--violet)}
.dg-t{font-size:14px;font-weight:600;fill:var(--ink)}
.dg-s{font-size:12px;fill:var(--ink-3)}
.dg-arrow{stroke:var(--ink-3);stroke-width:1.6;fill:none;marker-end:url(#arr)}
.dg-arrow.flowing{stroke-dasharray:6 6;animation:dash 1.2s linear infinite}
@keyframes dash{to{stroke-dashoffset:-12}}
@media (prefers-reduced-motion:reduce){.dg-arrow.flowing{animation:none}}

/* ---------- charts ---------- */
.chart{background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);padding:28px}
.chart h3{font-size:20px;margin-bottom:4px}
.chart svg{width:100%;height:auto;display:block;margin-top:20px;overflow:visible}
.chart .axis{stroke:var(--line)}
.chart .lbl{font:13px var(--display);fill:var(--ink-3)}
.chart .val{font:600 13px var(--display);fill:var(--ink)}
.chart .src{font-size:13px;color:var(--ink-3);margin-top:16px}
.bar{transition:opacity .2s}
.chart svg:hover .bar{opacity:.45}.chart svg .bar:hover{opacity:1}
.grow{transform-box:fill-box;transform-origin:left;animation:grow 1s cubic-bezier(.3,.7,.2,1) both}
.grow.up{transform-origin:bottom}
@keyframes grow{from{transform:scaleX(0)}}
.chart .grow{animation-play-state:paused}.chart.on .grow{animation-play-state:running}
.grow.up{animation-name:growup}@keyframes growup{from{transform:scaleY(0)}}
.legend{display:flex;gap:18px;flex-wrap:wrap;font-size:14px;color:var(--ink-2);margin-top:14px}
.legend i{display:inline-block;width:10px;height:10px;border-radius:50%;margin-right:6px;vertical-align:1px}

/* ---------- facts strip ---------- */
.facts{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--line)}
.facts div{padding:28px 20px 8px 0}
.facts b{display:block;font-size:clamp(36px,4vw,56px);letter-spacing:-.04em;line-height:1;font-weight:800}
.facts span{color:var(--ink-2);font-size:15px}
@media (max-width:820px){.facts{grid-template-columns:repeat(2,1fr)}}

/* ---------- page head ---------- */
.page-head{padding-block:clamp(48px,8vw,104px) clamp(32px,5vw,56px);border-bottom:1px solid var(--line);position:relative;overflow:hidden}
.page-head .lede{margin-top:20px}
.crumbs{font-size:14px;color:var(--ink-3);margin-bottom:20px}
.crumbs a{text-decoration:none}.crumbs a:hover{color:var(--rani)}
.head-dots{position:absolute;right:-80px;top:-70px;width:340px;opacity:.3;pointer-events:none;z-index:0}
.page-head .wrap{position:relative}.page-head .wrap > *:not(.head-dots){position:relative;z-index:1}
@media (max-width:820px){.head-dots{display:none}}

/* ---------- case study / article ---------- */
.cs-hero{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:end}
@media (max-width:900px){.cs-hero{grid-template-columns:1fr}}
.cs-facts{display:grid;grid-template-columns:repeat(2,1fr);gap:0;border-top:1px solid var(--line)}
.cs-facts div{padding:16px 16px 16px 0;border-bottom:1px solid var(--line)}
.cs-facts dt{font-size:13px;color:var(--ink-3)}.cs-facts dd{margin:2px 0 0;font-weight:600}
.browser{border-radius:18px;overflow:hidden;border:1px solid var(--line);background:var(--card);box-shadow:0 30px 60px -30px rgba(26,24,72,.35)}
.browser .bar-top{height:34px;display:flex;align-items:center;gap:6px;padding:0 14px;border-bottom:1px solid var(--line);background:var(--paper-2)}
.browser .bar-top i{width:10px;height:10px;border-radius:50%;background:var(--line)}
.browser .bar-top span{margin-left:12px;font-size:12px;color:var(--ink-3);background:var(--card);padding:3px 12px;border-radius:999px}
.phone{width:280px;border-radius:40px;border:10px solid var(--ink);overflow:hidden;box-shadow:0 30px 60px -20px rgba(26,24,72,.4);background:var(--card)}
.prose{font-family:var(--read);font-size:20px;line-height:1.7;color:var(--ink)}
.prose p{margin:0 0 1.1em;max-width:66ch}
.prose h2{font-family:var(--display);font-size:32px;margin:2em 0 .6em}
.prose h3{font-family:var(--display);font-size:22px;margin:1.6em 0 .4em}
.prose ul,.prose ol{max-width:62ch;padding-left:1.2em}.prose li{margin-bottom:.5em}
.prose blockquote{margin:1.6em 0;padding:4px 0 4px 24px;border-left:4px solid var(--brand);font-size:24px;font-style:italic;color:var(--ink-2)}
.prose figure{margin:2em 0}.prose figcaption{font:14px var(--display);color:var(--ink-3);margin-top:10px}
.cs-layout{display:grid;grid-template-columns:220px 1fr;gap:56px}
.toc{position:sticky;top:96px;align-self:start;font-size:15px}
.toc a{display:block;text-decoration:none;color:var(--ink-3);padding:6px 0 6px 14px;border-left:2px solid var(--line)}
.toc a:hover{color:var(--ink);border-color:var(--rani)}
@media (max-width:900px){.cs-layout{grid-template-columns:1fr}.toc{display:none}}
.callout{background:var(--turmeric-soft);border-radius:var(--r-md);padding:18px 22px;font:16px/1.5 var(--display);margin:1.6em 0;max-width:66ch}
.tbd{background:var(--turmeric-soft);color:color-mix(in srgb,var(--turmeric) 45%,var(--ink));border:1px dashed var(--turmeric);border-radius:6px;padding:0 6px;font-size:.85em;white-space:nowrap}

/* ---------- blog ---------- */
.post-card{display:flex;flex-direction:column;gap:10px;text-decoration:none;padding:28px 0;border-top:1px solid var(--line)}
.post-card h3{font-size:26px;transition:color .2s}
.post-card:hover h3{color:var(--brand)}
.post-card p{margin:0;color:var(--ink-2)}
.post-art{aspect-ratio:16/9;border-radius:var(--r-md);overflow:hidden;background:var(--paper-2);margin-bottom:8px}
.post-art svg{width:100%;height:100%;display:block}

/* ---------- team / values ---------- */
.value{border-top:3px solid var(--ink);padding-top:20px}
.value h3{font-size:22px}
.value p{color:var(--ink-2);margin:0}
.person{display:flex;flex-direction:column;gap:6px}
.avatar{aspect-ratio:1;border-radius:var(--r-lg);display:grid;place-items:center;font-size:48px;font-weight:800;color:#fff;margin-bottom:10px}
.role{border-top:1px solid var(--line);padding:24px 0;display:grid;grid-template-columns:2fr 1fr 1fr auto;gap:20px;align-items:center}
.role h3{font-size:22px;margin:0}
@media (max-width:760px){.role{grid-template-columns:1fr}}

/* ---------- contact form ---------- */
.form{display:grid;gap:18px}
.form label{display:grid;gap:6px;font-size:15px;font-weight:600}
.form input,.form textarea,.form select{font:16px var(--display);padding:14px 16px;border-radius:var(--r-md);border:1.5px solid var(--line);background:var(--card);color:var(--ink)}
.form input:focus,.form textarea:focus,.form select:focus{border-color:var(--violet);outline:none}
.form .opts{display:flex;flex-wrap:wrap;gap:8px}
.form .opts label{font-weight:500;display:inline-flex;align-items:center;gap:8px;padding:10px 16px;border:1.5px solid var(--line);border-radius:999px;cursor:pointer}
.form .opts input{accent-color:var(--rani);padding:0}
.form .opts label:has(input:checked){border-color:var(--rani);background:var(--rani-soft)}
.sent{background:var(--peacock-soft);color:var(--ink);border-radius:var(--r-md);padding:24px}

/* ---------- faq ---------- */
details{border-top:1px solid var(--line);padding:20px 0}
details summary{cursor:pointer;font-weight:600;font-size:19px;list-style:none;display:flex;justify-content:space-between;gap:16px}
details summary::after{content:"+";font-size:24px;line-height:1;color:var(--brand);transition:transform .2s}
details[open] summary::after{transform:rotate(45deg)}
details p{color:var(--ink-2);margin:12px 0 0;max-width:70ch}

/* ---------- stack ---------- */
.stack{display:flex;flex-wrap:wrap;gap:10px}
.stack span{padding:10px 16px;border-radius:var(--r-md);border:1px solid var(--line);background:var(--card);font-size:15px}

/* ---------- footer ---------- */
.site-foot{background:var(--night);color:#F1F0FA;padding-block:72px 40px;margin-top:0}
.site-foot a{text-decoration:none;color:#B9B6D6}
.site-foot a:hover{color:#fff}
.foot-grid{display:grid;grid-template-columns:1.6fr repeat(4,1fr);gap:32px}
.foot-grid h4{font-size:15px;margin-bottom:14px;color:#fff}
.foot-grid ul{list-style:none;padding:0;margin:0;display:grid;gap:8px;font-size:15px}
.foot-big{font-size:clamp(36px,5vw,64px);font-weight:800;letter-spacing:-.04em;line-height:1;margin-bottom:24px}
.foot-base{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;border-top:1px solid #2F2A5E;margin-top:56px;padding-top:24px;font-size:14px;color:#8F8BB5}
@media (max-width:900px){.foot-grid{grid-template-columns:1fr 1fr}.foot-grid > div:first-child{grid-column:1/-1}}

/* ---------- reveal (one per page, on view) ---------- */
.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}}

.mock-note{position:fixed;right:16px;bottom:calc(16px + env(safe-area-inset-bottom,0px));z-index:60;background:var(--turmeric);color:#1A1848;font-size:13px;font-weight:600;padding:8px 14px;border-radius:999px;box-shadow:0 8px 20px -8px rgba(0,0,0,.3)}
.mock-note button{background:none;border:0;font:inherit;cursor:pointer;margin-left:6px}

.site-foot .btn{border-color:#F1F0FA;color:#F1F0FA}.site-foot .btn:hover{background:#F1F0FA;color:var(--night)}

/* ---------- in-house model cards ---------- */
.model{background:var(--card);border:1px solid var(--line);border-top:4px solid var(--mc);border-radius:var(--r-lg);padding:28px;display:flex;flex-direction:column;gap:14px}
.model p{margin:0;color:var(--ink-2)}
.model-head{display:flex;gap:16px;align-items:center}
.model-ta{font-family:"Noto Sans Tamil",var(--display);font-size:30px;font-weight:600;color:var(--mc);background:var(--ms);border-radius:var(--r-md);padding:10px 14px;line-height:1.2}
.model blockquote{margin:6px 0 0;padding:16px 18px;background:var(--paper-2);border-radius:var(--r-md);font:italic 17px/1.55 var(--read);color:var(--ink)}
.band-ink .value p{color:#C4C2DE}
.models-row{display:grid;grid-template-columns:repeat(5,1fr);gap:20px}
@media (max-width:980px){.models-row{grid-template-columns:repeat(2,1fr)}}
.tbl{width:100%;border-collapse:collapse;min-width:680px;font-size:16px}
.tbl th{text-align:left;padding:12px 10px;border-bottom:2px solid var(--ink);font-weight:600}
.tbl td{padding:14px 10px;border-bottom:1px solid var(--line);color:var(--ink-2)}
.tbl td:first-child,.tbl td:last-child{color:var(--ink);font-weight:600}

/* ---------- audiences ---------- */
.aud-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
@media (max-width:1020px){.aud-grid{grid-template-columns:repeat(2,1fr)}}
@media (max-width:600px){.aud-grid{grid-template-columns:1fr!important}}
.aud{display:flex;flex-direction:column;gap:12px;text-decoration:none;background:var(--card);border:1px solid var(--line);border-top:5px solid var(--ac);border-radius:var(--r-lg);padding:26px 24px;transition:border-color .2s,background .2s}
.aud:hover{background:var(--as)}
.aud h3{margin:0}
.aud p{margin:0;color:var(--ink-2);font-size:16px}
.aud ul{margin:4px 0 0;padding:0;list-style:none;display:grid;gap:8px;font-size:15px;color:var(--ink-2)}
.aud li{padding-left:18px;position:relative}
.aud li::before{content:"";position:absolute;left:0;top:.6em;width:8px;height:8px;border-radius:50%;background:var(--ac)}
.aud-go{margin-top:auto;padding-top:8px;font-weight:600;color:var(--ac)}

/* ================= v3: static pages, mobile, wizard ================= */
.skip{position:absolute;left:-999px;top:8px;background:var(--card);padding:8px 14px;border-radius:8px;z-index:100}
.skip:focus{left:12px}
.sr{position:absolute!important;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}
.foot-h{font-size:15px;margin-bottom:14px;color:#fff;letter-spacing:0}
.foot-note{max-width:32ch;color:#B9B6D6;margin:0 0 24px}
.foot-base a{color:#8F8BB5}
.cta-band{padding-block:clamp(56px,7vw,96px)}
.cta-grid{display:grid;grid-template-columns:1.4fr 1fr;gap:32px;align-items:center}
.cta-btns{justify-self:end;margin-top:0}
@media (max-width:820px){.cta-grid{grid-template-columns:1fr}.cta-btns{justify-self:start}}

/* journal */
nav.filters a{font:500 15px var(--display);padding:9px 16px;border-radius:999px;border:1px solid var(--line);background:var(--card);color:var(--ink-2);text-decoration:none;white-space:nowrap}
nav.filters a[aria-current="page"]{background:var(--ink);color:var(--paper);border-color:var(--ink)}
.pager{display:flex;gap:8px;flex-wrap:wrap;margin-top:48px;align-items:center}
.pager a,.pager span{min-width:44px;height:44px;padding:0 14px;display:inline-grid;place-items:center;border-radius:999px;border:1px solid var(--line);text-decoration:none;background:var(--card)}
.pager span[aria-current]{background:var(--ink);color:var(--paper);border-color:var(--ink)}
.subscribe{display:grid;grid-template-columns:1fr 1fr;gap:24px;align-items:center}
.subscribe .form{grid-template-columns:1fr auto}
@media (max-width:760px){.subscribe,.subscribe .form{grid-template-columns:1fr}}
.callout-cta{margin:40px 0 0;padding:24px 26px;border-radius:var(--r-lg);background:var(--violet-soft);border-left:5px solid var(--brand)}
.callout-cta p{margin:0;font-size:19px;font-weight:600}
.refs{margin-top:40px;border-top:1px solid var(--line);padding-top:24px}
.refs ol{padding-left:20px;display:grid;gap:8px;font-size:16px}
.refs a{color:var(--brand);word-break:break-word}
.share{margin-top:28px}
.prose a{color:var(--brand)}

/* contact */
.contact-cards{display:grid;grid-template-columns:1fr 1fr;gap:16px}
@media (max-width:520px){.contact-cards{grid-template-columns:1fr}}

/* wizard */
.wiz-wrap{padding-block:clamp(32px,6vw,72px)}
.wiz{max-width:860px;margin:0 auto;background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);padding:clamp(20px,4vw,44px);scroll-margin-top:90px}
.wiz-top{display:grid;gap:14px;margin-bottom:28px}
.wiz-progress{height:8px;border-radius:99px;background:var(--paper-2);overflow:hidden}
.wiz-progress i{display:block;height:100%;width:12%;background:var(--grad);border-radius:99px;transition:width .35s ease}
.wstep{border:0;padding:0;margin:0;min-width:0}
.wstep legend{padding:0;margin-bottom:6px;font-size:clamp(22px,3vw,28px)}
.wopts{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;margin-top:18px}
.wopts.compact{grid-template-columns:repeat(auto-fill,minmax(170px,1fr));gap:10px;margin-top:10px}
@media (max-width:600px){.wopts{grid-template-columns:1fr}}
.wopt{position:relative;display:block;cursor:pointer}
.wopt input{position:absolute;opacity:0;inset:0;margin:0;cursor:pointer}
.wopt span{display:flex;align-items:center;min-height:56px;padding:12px 16px 12px 46px;border:1.5px solid var(--line);border-radius:var(--r-md);background:var(--paper);font-weight:500;position:relative;line-height:1.35}
.wopts.compact .wopt span{min-height:48px}
.wopt span::before{content:"";position:absolute;left:16px;top:50%;width:18px;height:18px;margin-top:-9px;border:2px solid var(--ink-3);border-radius:50%}
.wopt input[type=checkbox] + span::before{border-radius:5px}
.wopt input:checked + span{border-color:var(--brand);background:var(--violet-soft)}
.wopt input:checked + span::before{border-color:var(--brand);background:var(--brand);box-shadow:inset 0 0 0 3px var(--violet-soft)}
.wopt input:focus-visible + span{outline:3px solid var(--violet);outline-offset:2px}
.wgroup{margin-top:22px}
.wglabel{font-weight:600;margin:0}
.werr{color:var(--rani);font-weight:600;margin:16px 0 0}
.wiz-nav{display:flex;justify-content:space-between;gap:12px;margin-top:32px;border-top:1px solid var(--line);padding-top:24px}
.wiz-nav .btn.solid{margin-left:auto}
.wrecs{display:grid;gap:14px;margin-top:16px}

/* diagram: list version for phones */
.dg-list{display:none}
@media (max-width:700px){
  .diagram{padding:18px}
  .diagram svg{display:none}
  .dg-list{display:grid;gap:10px;margin:0;padding:0;list-style:none;counter-reset:dg}
  .dg-list li{counter-increment:dg;display:grid;grid-template-columns:32px 1fr;column-gap:12px;padding:12px 14px;border-radius:12px;background:var(--paper);border:1.5px solid var(--line);position:relative}
  .dg-list li::before{content:counter(dg);grid-row:span 2;width:28px;height:28px;border-radius:50%;display:grid;place-items:center;background:var(--card);border:1.5px solid var(--ink-3);font-size:13px;font-weight:700}
  .dg-list li:not(:last-child)::after{content:"";position:absolute;left:27px;bottom:-11px;height:10px;border-left:2px dashed var(--ink-3)}
  .dg-list li span{font-size:14px;color:var(--ink-3)}
  .dg-list li.ai{border-color:var(--violet);background:var(--violet-soft)} .dg-list li.hot{border-color:var(--rani);background:var(--rani-soft)}
  .dg-list li.ok{border-color:var(--peacock);background:var(--peacock-soft)} .dg-list li.warn{border-color:var(--turmeric);background:var(--turmeric-soft)}
}

/* flow steps: vertical on phones */
@media (max-width:700px){
  .flow{flex-direction:column;overflow:visible}
  .flow .step{flex:none;padding:0 0 22px 60px;min-height:56px}
  .flow .step .n{position:absolute;left:0;top:0;margin:0}
  .flow .step::before{top:44px;bottom:0;left:21px;right:auto;border-top:0;border-left:2px dashed var(--line)}
  .band-ink .flow .step::before{border-color:#4A4577}
  .flow .step p{max-width:none}
}

/* general phone polish */
@media (max-width:700px){
  body{font-size:16px}
  section{padding-block:56px}
  .sec-head{margin-bottom:28px}
  .facts{grid-template-columns:1fr 1fr}
  .facts div{padding:20px 12px 4px 0}
  .cs-facts{grid-template-columns:1fr}
  .prose{font-size:18px}
  .prose h2{font-size:26px}
  .tile .body{padding:18px 18px 22px}
  .hero .h-hero{font-size:clamp(38px,11vw,56px)}
  .kolam .node text{font-size:19px;stroke-width:6px}
  .kolam .node text.sub{font-size:15px}
  .btn{padding:13px 20px}
  .head-dots{display:none}
  .split > div{padding:24px}
  .role{grid-template-columns:1fr!important;gap:8px}
  .chart{padding:20px}
  .models-row{grid-template-columns:1fr 1fr}
  .foot-grid{grid-template-columns:1fr 1fr;gap:28px}
  .foot-base{flex-direction:column}
}
@media (max-width:380px){.facts{grid-template-columns:1fr}.models-row{grid-template-columns:1fr}}
.nav a,.btn,.filters button,nav.filters a{min-height:44px}
.nav a{display:inline-flex;align-items:center}
[hidden]{display:none!important}
.wstep legend:focus{outline:none}

/* wizard options v2: even grid for main choices, one-line pills for small ones */
.wstep legend{font-weight:600;letter-spacing:-.02em}
.wstep > .small{margin:6px 0 0}
.wopts{align-items:stretch}
.wopt{display:flex}
.wopt span{flex:1;align-items:center}
.wopts.compact{display:flex;flex-wrap:wrap;gap:10px;margin-top:12px}
.wopts.compact .wopt{flex:0 0 auto}
.wopts.compact .wopt span{min-height:44px;padding:9px 18px 9px 42px;border-radius:999px;white-space:nowrap}
.wopts.compact .wopt span::before{left:14px;width:16px;height:16px;margin-top:-8px}
.wgroup{margin-top:26px}
.wgroup + .wgroup{padding-top:22px;border-top:1px solid var(--line)}
.wglabel{font-size:15px;color:var(--ink-2)}
@media (max-width:520px){.wopts.compact .wopt span{white-space:normal}}
.wopts.compact .wopt span::before{margin-top:-9px}

.post-art img,.tile .shot > img{width:100%;height:100%;object-fit:cover;display:block}
.post-art{aspect-ratio:1200/630}
.tile.feature.lead{align-items:center}
.tile.feature.lead .shot{min-height:0;aspect-ratio:1200/630;align-self:center}
.tile.feature.lead .h-sec{font-size:clamp(26px,2.8vw,38px)}