/* ---------- Tokens ---------- */
:root{
  --paper:#FBFAFF;      /* cool lilac-white page */
  --mist:#F0ECFB;       /* tinted panels */
  --ink:#1C1640;        /* deep indigo text */
  --ink-2:#4A4470;      /* secondary text */
  --line:#DDD6F3;       /* rules and borders */
  --lotus:#C4279B;      /* magenta from the lotus (AA on paper) */
  --violet:#5B22C9;     /* primary action */
  --peri:#3E6FD8;       /* periwinkle */
  --plate:#FFFFFF;      /* logo plate, stays white in dark mode */
  --focus:#3E6FD8;
  --display:"Plus Jakarta Sans", "Segoe UI", system-ui, sans-serif;
  --body:"Plus Jakarta Sans", "Noto Sans Tamil", "Noto Sans Devanagari", "Segoe UI", system-ui, -apple-system, sans-serif;
  --measure:68ch;
  --wrap:1180px;
  --r-sm:6px; --r-lg:22px;
  box-sizing:border-box;
  padding-top:env(safe-area-inset-top,0px);
  padding-bottom:env(safe-area-inset-bottom,0px);
}
@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]){
    --paper:#120E2A; --mist:#1B1640; --ink:#ECE8FF; --ink-2:#B8B0DE;
    --line:#2F2860; --lotus:#F070CE; --violet:#A98BFF; --peri:#8DB0FF; --focus:#8DB0FF;
  }
}
:root[data-theme="dark"]{
  --paper:#120E2A; --mist:#1B1640; --ink:#ECE8FF; --ink-2:#B8B0DE;
  --line:#2F2860; --lotus:#F070CE; --violet:#A98BFF; --peri:#8DB0FF; --focus:#8DB0FF;
}

*,*::before,*::after{box-sizing:inherit}
html{scroll-behavior:smooth;scroll-padding-top:calc(76px + env(safe-area-inset-top,0px))}
@media (prefers-reduced-motion: reduce){html{scroll-behavior:auto}}
body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--body);font-size:1.0625rem;line-height:1.65;-webkit-font-smoothing:antialiased}
strong,b{font-weight:600}
img{max-width:100%;height:auto;display:block}
a{color:var(--violet);text-underline-offset:3px}
a:hover{color:var(--lotus)}
:focus-visible{outline:3px solid var(--focus);outline-offset:3px;border-radius:4px}
h1,h2,h3{font-family:var(--display);line-height:1.12;margin:0 0 .5em;letter-spacing:-0.02em}
h1{font-size:clamp(2.3rem,4.4vw,3.6rem);font-weight:700;letter-spacing:-0.025em;line-height:1.08}
h2{font-size:clamp(1.75rem,3vw,2.4rem);font-weight:700}
h3{font-size:1.35rem;font-weight:600}
p{margin:0 0 1em;max-width:var(--measure)}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 clamp(20px,4vw,40px)}
.skip{position:absolute;left:-999px;top:8px;background:var(--ink);color:var(--paper);padding:10px 14px;border-radius:var(--r-sm);z-index:100}
.skip:focus{left:12px}
.lede{font-size:1.2rem;color:var(--ink-2)}
.muted{color:var(--ink-2)}

/* ---------- Header ---------- */
.site-head{position:sticky;top:env(safe-area-inset-top,0px);z-index:50;background:color-mix(in srgb,var(--paper) 88%,transparent);backdrop-filter:saturate(1.4) blur(10px);-webkit-backdrop-filter:saturate(1.4) blur(10px);border-bottom:1px solid var(--line)}
.head-row{display:flex;align-items:center;height:72px;gap:14px}
.brand{margin-right:auto}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--ink)}
.brand img{width:46px}
.brand span{font-family:var(--display);font-weight:700;font-size:1.3rem;letter-spacing:-0.01em}
.nav{display:flex;align-items:center;gap:26px}
.nav a{color:var(--ink);text-decoration:none;font-size:.98rem}
.nav a:hover{color:var(--lotus)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font:600 1rem/1 var(--body);padding:14px 22px;border-radius:999px;text-decoration:none;border:2px solid transparent;cursor:pointer}
.btn-primary{background:var(--violet);color:#fff}
.btn-primary:hover{background:var(--lotus);color:#fff}
:root[data-theme="dark"] .btn-primary{color:#120E2A}
@media (prefers-color-scheme: dark){:root:not([data-theme="light"]) .btn-primary{color:#120E2A}}
.btn-ghost{border-color:var(--ink);color:var(--ink);background:transparent}
.btn-ghost:hover{border-color:var(--lotus);color:var(--lotus)}
.nav .btn{padding:10px 18px;font-size:.95rem}
.nav a.btn-primary,.nav a.btn-primary:hover{color:#fff}
:root[data-theme="dark"] .nav a.btn-primary{color:#120E2A}
@media (prefers-color-scheme: dark){:root:not([data-theme="light"]) .nav a.btn-primary{color:#120E2A}}
.head-actions{display:flex;align-items:center;gap:8px}
.theme-toggle{width:38px;height:38px;display:grid;place-items:center;background:none;border:0;border-radius:50%;color:var(--ink-2);cursor:pointer;transition:background .2s,color .2s}
.theme-toggle:hover{background:var(--mist);color:var(--violet)}
.theme-toggle svg{width:19px;height:19px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.theme-toggle .i-sun{display:none}
.theme-toggle.is-dark .i-sun{display:block}.theme-toggle.is-dark .i-moon{display:none}
.menu-btn{display:none;background:none;border:1px solid var(--line);color:var(--ink);border-radius:var(--r-sm);padding:8px 12px;font:600 .95rem var(--body)}
@media (max-width:880px){
  .menu-btn{display:block}
  .nav{position:absolute;left:0;right:0;top:72px;flex-direction:column;align-items:flex-start;gap:0;background:var(--paper);border-bottom:1px solid var(--line);padding:8px clamp(20px,4vw,40px) 20px;display:none}
  .nav.open{display:flex}
  .nav a{padding:12px 0;width:100%;border-bottom:1px solid var(--line)}
  .nav .btn{margin-top:14px;width:auto;border-bottom:0}
}

/* ---------- Hero (full screen) ---------- */
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}
.hero{min-height:calc(100vh - 73px);min-height:calc(100svh - 73px - env(safe-area-inset-top,0px));display:flex;padding:clamp(28px,5vh,64px) 0 24px}
.hero-inner{display:flex;flex-direction:column;justify-content:space-between;width:100%;gap:28px}
.hero-grid{flex:1;display:grid;grid-template-columns:1fr 1fr;gap:clamp(24px,4vw,64px);align-items:center}
.hero h1{max-width:16ch}
.hero .lede{max-width:50ch}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.stage-wrap{display:flex;flex-direction:column;align-items:center;gap:10px}
.stage{position:relative;aspect-ratio:1;width:100%;max-width:min(600px,72vh)}
.stage::before{content:"";position:absolute;inset:0;border-radius:50%;background:repeating-radial-gradient(circle at 50% 50%,transparent 0 34px,var(--line) 34px 35.5px);-webkit-mask:radial-gradient(circle,#000 30%,transparent 70%);mask:radial-gradient(circle,#000 30%,transparent 70%)}
.bloom{position:absolute;left:19%;top:50%;transform:translateY(-50%);width:62%;aspect-ratio:1}
.bloom svg{display:block;position:absolute;inset:0;width:100%;height:100%;overflow:visible}
.bloom img{position:absolute;left:50%;top:50%;width:25%;height:auto;transform:translate(-50%,-50%)}
.ripple{position:absolute;left:50%;top:50%;width:62%;aspect-ratio:1;border-radius:50%;border:2px solid var(--lotus);transform:translate(-50%,-50%) scale(.5);opacity:0;pointer-events:none}
.ripple.go{animation:ripple 2.2s ease-out}
@keyframes ripple{0%{opacity:.55;transform:translate(-50%,-50%) scale(.5)}100%{opacity:0;transform:translate(-50%,-50%) scale(1.5)}}
.stage-toggle{background:none;border:0;color:var(--ink-2);font:inherit;font-size:.9rem;text-decoration:underline;text-underline-offset:3px;cursor:pointer;padding:6px}
.stage-toggle:hover{color:var(--lotus)}
.credentials{padding-top:20px;border-top:1px solid var(--line);display:flex;flex-wrap:wrap;gap:10px 40px;color:var(--ink-2);font-size:.98rem}
.credentials strong{color:var(--ink);font-weight:600}
@media (max-width:880px){
  .hero{min-height:0}
  .hero-grid{grid-template-columns:1fr}
  .stage-wrap{order:-1}
  .stage{max-width:440px}
}


/* ---------- Sections ---------- */
section.block{padding:clamp(64px,9vw,112px) 0;border-top:1px solid var(--line)}
.section-head{max-width:760px;margin-bottom:clamp(32px,5vw,56px)}
.tint{background:var(--mist)}

/* About */
.about-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:clamp(32px,5vw,72px);align-items:start}
.beliefs{list-style:none;margin:28px 0 0;padding:0;display:grid;gap:22px}
.beliefs li{padding-left:22px;border-left:3px solid var(--lotus)}
.beliefs h3{font-size:1.15rem;margin-bottom:.25em}
.beliefs p{margin:0;color:var(--ink-2)}
.facts{background:var(--paper);border:1px solid var(--line);border-radius:var(--r-lg);padding:28px}
.tint .facts{background:var(--paper)}
.facts h3{font-size:1.1rem;margin-bottom:20px;padding-bottom:14px;border-bottom:1px solid var(--line)}
.facts dl{margin:0;display:grid;gap:14px}
.facts dt{font-size:.85rem;font-weight:500;color:var(--ink-2)}
.facts dd{margin:2px 0 0;font-weight:500}
@media (max-width:880px){.about-grid{grid-template-columns:1fr}}

/* Products */
.product{display:grid;grid-template-columns:minmax(0,.85fr) minmax(0,1.15fr);gap:clamp(28px,5vw,64px);align-items:start;padding:clamp(28px,4vw,44px) 0}
.product + .product{border-top:1px dashed var(--line)}
.plate{background:var(--plate);border-radius:var(--r-lg);border:1px solid var(--line);padding:clamp(28px,4vw,44px);display:flex;align-items:center;justify-content:center;min-height:220px}
.plate img{max-height:120px;width:auto}
.status{display:inline-block;font-size:.85rem;font-weight:600;padding:4px 12px;border-radius:999px;background:var(--mist);color:var(--violet);margin-bottom:14px}
.tint .status{background:var(--paper)}
.highlights{list-style:none;margin:20px 0 24px;padding:0;display:grid;grid-template-columns:1fr 1fr;gap:18px 28px}
.highlights li{position:relative;padding-left:20px}
.highlights li::before{content:"";position:absolute;left:0;top:.62em;width:8px;height:8px;border-radius:50%;background:linear-gradient(135deg,var(--lotus),var(--peri))}
.highlights strong{display:block}
.highlights span{color:var(--ink-2);font-size:.97rem}
@media (max-width:880px){.product{grid-template-columns:1fr}.highlights{grid-template-columns:1fr}}

/* Research */
.research-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(20px,3vw,36px)}
.research-grid article{border-top:3px solid var(--violet);padding-top:18px}
.research-grid article:nth-child(2){border-color:var(--lotus)}
.research-grid article:nth-child(3){border-color:var(--peri)}
.research-grid p{color:var(--ink-2);margin:0}
@media (max-width:880px){.research-grid{grid-template-columns:1fr}}

/* Partners */
.partners{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden}
.partners li{padding:28px 26px;background:var(--paper)}
.ptype{display:inline-block;font-size:.85rem;font-weight:600;color:var(--lotus);margin-bottom:10px}
.partners h3{font-size:1.15rem;margin-bottom:.4em}
.partners p{margin:0;color:var(--ink-2);font-size:.97rem}
@media (max-width:980px){.partners{grid-template-columns:1fr 1fr}}
@media (max-width:560px){.partners{grid-template-columns:1fr}}

/* Team */
.team-group + .team-group{margin-top:clamp(40px,6vw,64px)}
.team-group > h3{font-size:1.05rem;color:var(--ink-2);font-family:var(--body);font-weight:600;margin-bottom:22px}
.people{display:grid;grid-template-columns:repeat(2,1fr);gap:clamp(20px,3vw,32px)}
.person{display:grid;grid-template-columns:auto 1fr;gap:20px;align-items:start}
.avatar{width:84px;height:84px;border-radius:50%;display:grid;place-items:center;font:700 1.6rem var(--display);color:#fff;background:conic-gradient(from 200deg,#C4279B,#5B22C9,#3E6FD8,#C4279B)}
.person h4{font-family:var(--display);font-size:1.3rem;margin:0}
.person .role{margin:2px 0 10px;color:var(--lotus);font-weight:600}
.person p{color:var(--ink-2);font-size:.99rem}
.person a{font-size:.95rem}
@media (max-width:880px){.people{grid-template-columns:1fr}}

/* Careers */
.careers{display:grid;grid-template-columns:1fr auto;gap:28px;align-items:end}
@media (max-width:720px){.careers{grid-template-columns:1fr}}

/* Contact */
.contact-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:clamp(32px,5vw,72px)}
.contact-card address{font-style:normal;line-height:1.7;color:var(--ink-2);margin-top:8px}
.contact-card address strong{color:var(--ink);font-weight:600}
.contact-card dl{margin:28px 0 0;display:grid;gap:18px;padding-top:24px;border-top:1px solid var(--line);max-width:360px}
.contact-card dt{font-size:.85rem;font-weight:500;color:var(--ink-2)}
.contact-card dd{margin:2px 0 0;font-size:1.08rem;font-weight:600}
.contact-card dd a{text-decoration:none;background-image:linear-gradient(currentColor,currentColor);background-size:0 1.5px;background-position:0 100%;background-repeat:no-repeat;transition:background-size .25s}
.contact-card dd a:hover{background-size:100% 1.5px}
form{display:grid;gap:18px}
.row2{display:grid;grid-template-columns:1fr 1fr;gap:18px}
label{display:block;font-weight:600;font-size:.92rem;margin-bottom:6px}
input,select,textarea{width:100%;font:inherit;color:var(--ink);background:var(--paper);border:1.5px solid var(--line);border-radius:var(--r-sm);padding:12px 14px}
.tint input,.tint select,.tint textarea{background:var(--paper)}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--focus);box-shadow:0 0 0 3px color-mix(in srgb,var(--focus) 25%,transparent)}
textarea{min-height:140px;resize:vertical}
.form-note{font-size:.92rem;color:var(--ink-2);margin:0}
.form-msg{font-weight:600;margin:0}
.form-msg.err{color:var(--lotus)}
@media (max-width:880px){.contact-grid{grid-template-columns:1fr}}
@media (max-width:560px){.row2{grid-template-columns:1fr}}

/* Footer */
.site-foot{border-top:1px solid var(--line);padding:56px 0 40px;font-size:.95rem;color:var(--ink-2)}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:32px}
.foot-grid h4{font-family:var(--display);color:var(--ink);font-size:1.05rem;margin:0 0 12px}
.foot-grid ul{list-style:none;margin:0;padding:0;display:grid;gap:8px}
.foot-grid a{color:var(--ink-2);text-decoration:none}
.foot-grid a:hover{color:var(--lotus);text-decoration:underline}
.foot-logo{background:var(--plate);display:inline-block;padding:14px 18px;border-radius:var(--r-lg);margin-bottom:16px}
.foot-logo img{width:150px}
.legal-line{margin-top:40px;padding-top:20px;border-top:1px solid var(--line);display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px}

@media (max-width:760px){.foot-grid{grid-template-columns:1fr}}

/* Legal pages (hash routes) */
.legal{padding:clamp(48px,7vw,88px) 0}
.legal article{max-width:760px}
.legal h2{margin-top:1.6em;font-size:1.5rem}
.legal h1{font-size:clamp(2.2rem,4.5vw,3.2rem)}
[hidden]{display:none !important}

.stage-controls{display:flex;flex-direction:column;align-items:center;gap:6px}
.stage-buttons{display:flex;align-items:center;justify-content:center;gap:24px;flex-wrap:wrap}
.stage-toggle[disabled]{opacity:.45;cursor:default}
/* Reserve the row so the label appearing on play does not shove the buttons.
   min-height, not min-width: the label now has a line of its own. */
.sample-label{color:var(--lotus);font-size:.95rem;min-height:1.45em;text-align:center;line-height:1.45}
/* The label text swaps between "Hear a sample" and "Stop", which are different
   widths. Fixing the width stops the button resizing under the cursor. */
#sample-play{min-width:13ch;text-align:center}
@media (max-width:420px){
  .stage-buttons{gap:14px}
  .stage-toggle{font-size:.85rem;padding:6px 2px}
}

/* Honeypot: off-screen, never focusable, invisible to humans; bots fill it. */
.hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}

/* Hold-to-send: the fill shows the server's minimum-age wait elapsing. */
.hold-btn{position:relative;overflow:hidden;--hold:0%}
.hold-btn::after{content:"";position:absolute;inset:0;width:var(--hold);
  background:rgba(255,255,255,.28);transition:width .06s linear;pointer-events:none}
.hold-btn.holding{transform:scale(.985)}
.hold-hint{margin:8px 0 0;font-size:.82rem;color:var(--ink-2)}
@media (prefers-reduced-motion: reduce){.hold-btn::after{transition:none}.hold-btn.holding{transform:none}}