/* ==========================================================================
   NSONS Design System — 2026
   Zero dependencies. No framework. No webfont download. No layout shift.
   ========================================================================== */

/* --- 1. Tokens ---------------------------------------------------------- */
:root{
  /* Clinical palette. Deep navy = authority/trust. Teal = clinical precision.
     Deliberately NOT the saturated blue every medical site defaults to. */
  --ink:#071A2B;        /* headings, max contrast */
  --ink-2:#2A4257;      /* body text */
  --ink-3:#486075;      /* tertiary text */
  --muted:#5E7489;      /* secondary text */
  --line:#DDE5EC;       /* hairlines */
  --line-2:#EDF2F6;
  --bg:#FFFFFF;
  --surface:#F6F9FB;    /* section bands */
  --surface-2:#EEF4F8;
  --brand:#0B6E6B;      /* primary teal */
  --brand-ink:#08504E;  /* hover/pressed */
  --brand-soft:#E4F2F1; /* tinted fills */
  --accent:#00A79D;     /* highlights, rules */
  --signal:#B4531A;     /* warnings/placeholders only */
  --signal-soft:#FDF1E7;

  --radius:14px;
  --radius-sm:9px;
  --radius-lg:22px;

  /* Elevation: restrained. Medical buyers read "flashy" as "unserious". */
  --sh-1:0 1px 2px rgba(7,26,43,.06), 0 1px 3px rgba(7,26,43,.05);
  --sh-2:0 4px 10px rgba(7,26,43,.06), 0 10px 28px rgba(7,26,43,.07);

  /* Fluid type scale — ratio ~1.25, clamped so nothing jumps on resize */
  --t-xs:.8125rem;
  --t-sm:.9063rem;
  --t-base:1.0313rem;
  --t-md:clamp(1.09rem,.45vw + .99rem,1.22rem);
  --t-lg:clamp(1.31rem,.85vw + 1.12rem,1.6rem);
  --t-xl:clamp(1.6rem,1.6vw + 1.25rem,2.15rem);
  --t-2xl:clamp(1.95rem,2.7vw + 1.35rem,3rem);
  --t-3xl:clamp(2.3rem,4vw + 1.4rem,3.85rem);

  --sp:1rem;
  --wrap:1220px;
  --wrap-narrow:760px;

  /* System stack: zero network cost, zero FOUT, zero CLS, renders natively
     on every device in Pakistan including low-end Android. A webfont would
     cost ~40-120KB and risk LCP for no measurable brand gain at this stage. */
  --font:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",
         Arial,"Noto Sans",sans-serif,"Apple Color Emoji","Segoe UI Emoji";
}

/* --- 2. Reset ----------------------------------------------------------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.01ms!important;transition-duration:.01ms!important}
}
body{
  margin:0;font-family:var(--font);font-size:var(--t-base);line-height:1.65;
  color:var(--ink-2);background:var(--bg);
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
}
img,svg,video{max-width:100%;height:auto;display:block}
/* Every <img> must carry width+height attrs. This guarantees CLS ~0. */
h1,h2,h3,h4{color:var(--ink);line-height:1.15;margin:0 0 .5em;
  letter-spacing:-.021em;font-weight:680;text-wrap:balance}
h1{font-size:var(--t-3xl);letter-spacing:-.032em}
h2{font-size:var(--t-2xl);letter-spacing:-.027em}
h3{font-size:var(--t-lg)}
h4{font-size:var(--t-md)}
p{margin:0 0 1.1em;text-wrap:pretty}
a{color:var(--brand-ink);text-underline-offset:3px;text-decoration-thickness:1px}
a:hover{color:var(--brand)}
ul,ol{margin:0 0 1.1em;padding-left:1.15em}
li{margin:.3em 0}
hr{border:0;border-top:1px solid var(--line);margin:3rem 0}
:focus-visible{outline:3px solid var(--accent);outline-offset:3px;border-radius:4px}

/* --- 3. Layout ---------------------------------------------------------- */
.wrap{width:min(100% - 2.5rem,var(--wrap));margin-inline:auto}
.narrow{width:min(100% - 2.5rem,var(--wrap-narrow));margin-inline:auto}
section{padding-block:clamp(3.2rem,6vw,6rem)}
.band{background:var(--surface)}
.band-2{background:var(--surface-2)}
.band-ink{background:var(--ink);color:#C9D8E4}
.band-ink h2,.band-ink h3{color:#fff}
.stack>*+*{margin-top:var(--sp)}
.grid{display:grid;gap:clamp(1rem,2vw,1.6rem)}
.g-2{grid-template-columns:repeat(auto-fit,minmax(min(100%,300px),1fr))}
.g-3{grid-template-columns:repeat(auto-fit,minmax(min(100%,265px),1fr))}
.g-4{grid-template-columns:repeat(auto-fit,minmax(min(100%,205px),1fr))}
.split{display:grid;grid-template-columns:minmax(0,1fr);gap:clamp(1.6rem,4vw,4rem);align-items:start}
.split>*{min-width:0}
.split .spec{table-layout:fixed;overflow-wrap:anywhere}
.split li{overflow-wrap:anywhere}
@media(min-width:880px){.split{grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr)}}

/* --- 4. Typographic helpers --------------------------------------------- */
.eyebrow{font-size:var(--t-xs);font-weight:700;letter-spacing:.09em;
  text-transform:uppercase;color:var(--brand);margin:0 0 .85rem;
  display:flex;align-items:center;gap:.6rem}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--accent);flex:none}
.lede{font-size:var(--t-md);color:var(--ink-3);max-width:62ch}
.small{font-size:var(--t-sm);color:var(--muted)}
.sec-head{max-width:68ch;margin-bottom:clamp(1.8rem,3vw,2.8rem)}

/* --- 5. Header / nav ---------------------------------------------------- */
.skip{position:absolute;left:-9999px;top:0;background:var(--ink);color:#fff;
  padding:.8rem 1.2rem;z-index:200;border-radius:0 0 var(--radius-sm) 0}
.skip:focus{left:0}
.topbar{background:var(--ink);color:#9FB6C9;font-size:var(--t-xs)}
.topbar .wrap{display:flex;gap:1.4rem;justify-content:flex-end;
  align-items:center;min-height:38px}
.topbar .tagline{margin-right:auto}
@media(max-width:620px){.topbar .tagline{display:none}}
.topbar a{color:#C9D8E4;text-decoration:none}
.topbar a:hover{color:#fff;text-decoration:underline}
.masthead{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.92);
  backdrop-filter:saturate(1.6) blur(12px);border-bottom:1px solid var(--line)}
.masthead .wrap{display:flex;align-items:center;gap:1.5rem;min-height:72px}
.logo{display:flex;align-items:center;gap:.6rem;text-decoration:none;flex:none}
.logo-mark{width:34px;height:34px;border-radius:9px;flex:none;
  background:linear-gradient(145deg,var(--brand),var(--ink));
  display:grid;place-items:center;color:#fff;font-weight:800;font-size:.95rem;
  letter-spacing:-.04em}
.logo-txt{font-weight:760;color:var(--ink);font-size:1.22rem;letter-spacing:-.035em}
.logo-sub{display:block;font-size:.6rem;font-weight:600;letter-spacing:.13em;
  text-transform:uppercase;color:var(--muted);margin-top:-2px}
nav.primary{margin-left:auto}
nav.primary ul{display:flex;gap:.25rem;list-style:none;margin:0;padding:0;
  align-items:center;flex-wrap:wrap}
nav.primary a{display:block;padding:.55rem .72rem;border-radius:var(--radius-sm);
  text-decoration:none;color:var(--ink-2);font-weight:560;font-size:var(--t-sm);
  transition:background .15s,color .15s}
nav.primary a:hover,nav.primary a[aria-current]{background:var(--brand-soft);color:var(--brand-ink)}
.nav-toggle{display:none;margin-left:auto;background:none;border:1px solid var(--line);
  border-radius:var(--radius-sm);padding:.55rem .8rem;font:inherit;font-size:var(--t-sm);
  font-weight:600;color:var(--ink);cursor:pointer}
@media(max-width:1060px){
  .nav-toggle{display:block}
  nav.primary{display:none;order:9;width:100%;padding-bottom:1rem}
  nav.primary.open{display:block}
  nav.primary ul{flex-direction:column;align-items:stretch;gap:0}
  nav.primary a{padding:.8rem .6rem;border-bottom:1px solid var(--line-2)}
}

/* --- 6. Buttons --------------------------------------------------------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;
  padding:.82rem 1.4rem;border-radius:var(--radius-sm);font-weight:640;
  font-size:var(--t-sm);text-decoration:none;border:1.5px solid transparent;
  cursor:pointer;transition:background .16s,border-color .16s,color .16s,transform .16s;
  line-height:1.2;text-align:center}
.btn:active{transform:translateY(1px)}
.btn-primary{background:var(--brand);color:#fff;border-color:var(--brand)}
.btn-primary:hover{background:var(--brand-ink);border-color:var(--brand-ink);color:#fff}
.btn-ghost{background:#fff;color:var(--ink);border-color:var(--line)}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand-ink)}
.btn-ink{background:var(--ink);color:#fff;border-color:var(--ink)}
.btn-ink:hover{background:#0E2C47;color:#fff}
.btn-row{display:flex;gap:.7rem;flex-wrap:wrap;margin-top:1.6rem}

/* --- 7. Cards ----------------------------------------------------------- */
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:clamp(1.25rem,2vw,1.75rem);transition:border-color .18s,box-shadow .18s,transform .18s}
.card:hover{border-color:#C2D6DC;box-shadow:var(--sh-2);transform:translateY(-2px)}
.card h3{margin-bottom:.4rem}
.card p{margin-bottom:0;font-size:var(--t-sm);color:var(--ink-3)}
.card-link{text-decoration:none;color:inherit;display:block}
.card-link h3{color:var(--ink)}
.card-link:hover h3{color:var(--brand-ink)}
.card-ico{width:42px;height:42px;border-radius:11px;background:var(--brand-soft);
  color:var(--brand-ink);display:grid;place-items:center;margin-bottom:.9rem;flex:none}
.card-ico svg{width:21px;height:21px;stroke-width:1.8}
.more{display:inline-flex;align-items:center;gap:.35rem;font-weight:640;
  font-size:var(--t-sm);color:var(--brand-ink);margin-top:1rem;text-decoration:none}
.card-link:hover .more{gap:.6rem}
.more::after{content:"→";transition:transform .18s}

/* Division cards — the most important conversion surface on the home page */
.div-card{position:relative;overflow:hidden;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius-lg);padding:clamp(1.5rem,2.4vw,2.1rem);
  display:flex;flex-direction:column;text-decoration:none;color:inherit;
  transition:border-color .2s,box-shadow .2s,transform .2s}
.div-card::before{content:"";position:absolute;inset:0 0 auto 0;height:4px;
  background:linear-gradient(90deg,var(--brand),var(--accent));
  transform:scaleX(0);transform-origin:left;transition:transform .3s}
.div-card:hover{border-color:#BFD6DA;box-shadow:var(--sh-2);transform:translateY(-3px)}
.div-card:hover::before{transform:scaleX(1)}
.div-card h3{font-size:var(--t-xl);margin-bottom:.5rem}
.div-card ul{list-style:none;padding:0;margin:1rem 0 0;font-size:var(--t-sm)}
.div-card li{padding:.4rem 0;border-top:1px solid var(--line-2);color:var(--ink-3)}

/* --- 8. Hero ------------------------------------------------------------ */
.hero{position:relative;background:var(--ink);color:#C9D8E4;overflow:hidden;
  padding-block:clamp(3.5rem,7vw,6.5rem)}
.hero::after{content:"";position:absolute;inset:0;pointer-events:none;
  background:
    radial-gradient(900px 420px at 88% -5%,rgba(0,167,157,.22),transparent 62%),
    radial-gradient(640px 380px at 8% 108%,rgba(11,110,107,.26),transparent 60%)}
.hero .wrap{position:relative;z-index:1}
.hero h1{color:#fff;max-width:17ch}
.hero .lede{color:#B6CBDA;font-size:var(--t-md);max-width:56ch}
.hero-grid{display:grid;gap:clamp(2rem,4vw,3.5rem);align-items:center}
@media(min-width:900px){.hero-grid{grid-template-columns:1.1fr .9fr}}
.hero-stats{display:grid;grid-template-columns:repeat(2,1fr);gap:1px;
  background:rgba(255,255,255,.13);border:1px solid rgba(255,255,255,.13);
  border-radius:var(--radius);overflow:hidden;margin-top:2.4rem}
.hero-stats div{background:#0A2033;padding:1.1rem 1.25rem}
.hero-stats dt{font-size:var(--t-xs);color:#8FA9BE;letter-spacing:.04em}
.hero-stats dd{margin:.2rem 0 0;font-size:var(--t-xl);font-weight:720;color:#fff;
  letter-spacing:-.03em}

/* --- 9. Placeholder system --------------------------------------------- */
/* Any fact not verified from client material or a cited source renders here.
   Impossible to miss in review; impossible to ship by accident. */
.ph{background:var(--signal-soft);color:var(--signal);border:1px dashed #E0A579;
  border-radius:5px;padding:.08em .45em;font-size:.93em;font-weight:620;
  font-style:normal;white-space:nowrap}
.ph::before{content:"⚠ ";font-size:.9em}
.ph-block{display:block;background:var(--signal-soft);border:1px dashed #E0A579;
  border-left:4px solid var(--signal);border-radius:var(--radius-sm);
  padding:1rem 1.2rem;color:#7A3A12;font-size:var(--t-sm);margin:1.2rem 0;white-space:normal}
.ph-block > strong:first-child{color:var(--signal);display:block;margin-bottom:.25rem;
  font-size:var(--t-xs);letter-spacing:.07em;text-transform:uppercase}
.ph-block strong{color:#7A3A12}

/* --- 10. Misc components ------------------------------------------------ */
.pill{display:inline-block;padding:.3rem .7rem;border-radius:100px;
  background:var(--brand-soft);color:var(--brand-ink);font-size:var(--t-xs);
  font-weight:650;letter-spacing:.01em}
.pill-line{background:#fff;border:1px solid var(--line);color:var(--ink-3)}
.crumbs{font-size:var(--t-xs);color:var(--muted);padding-block:1.1rem}
.crumbs + section{padding-top:clamp(1.2rem,2.5vw,2.2rem)}
.crumbs ol{list-style:none;display:flex;flex-wrap:wrap;gap:.45rem;margin:0;padding:0}
.crumbs li::after{content:"/";margin-left:.45rem;color:#B8C6D2}
.crumbs li:last-child::after{content:""}
.crumbs a{color:var(--muted);text-decoration:none}
.crumbs a:hover{color:var(--brand-ink);text-decoration:underline}

.trust{display:flex;flex-wrap:wrap;gap:.6rem 1.9rem;align-items:center;
  padding:1.1rem 0;font-size:var(--t-sm);color:var(--muted)}
.trust span{display:inline-flex;align-items:center;gap:.45rem}
.trust svg{width:16px;height:16px;color:var(--brand);flex:none}

.brand-grid{display:flex;flex-wrap:wrap;gap:1px;background:var(--line);
  border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
.brand-cell{flex:1 1 164px}
.brand-cell{background:#fff;padding:1.3rem 1rem;text-align:center;text-decoration:none;
  display:flex;flex-direction:column;justify-content:center;gap:.3rem;
  min-height:104px;transition:background .16s}
.brand-cell:hover{background:var(--brand-soft)}
.brand-cell b{color:var(--ink);font-size:var(--t-sm);font-weight:680;letter-spacing:-.01em}
.brand-cell span{font-size:var(--t-xs);color:var(--muted);line-height:1.35}

.steps{counter-reset:s;list-style:none;padding:0;display:grid;gap:1.1rem}
.steps li{counter-increment:s;position:relative;padding-left:3.2rem}
.steps li::before{content:counter(s);position:absolute;left:0;top:-.1rem;
  width:2.2rem;height:2.2rem;border-radius:50%;background:var(--brand-soft);
  color:var(--brand-ink);display:grid;place-items:center;font-weight:750;
  font-size:var(--t-sm)}
.steps b{display:block;color:var(--ink);margin-bottom:.15rem}

details.faq{border-bottom:1px solid var(--line);padding:.3rem 0}
details.faq summary{cursor:pointer;padding:1.05rem 2rem 1.05rem 0;font-weight:640;
  color:var(--ink);list-style:none;position:relative;font-size:var(--t-base)}
details.faq summary::-webkit-details-marker{display:none}
details.faq summary::after{content:"+";position:absolute;right:.3rem;top:.95rem;
  font-size:1.4rem;color:var(--brand);font-weight:400;line-height:1}
details.faq[open] summary::after{content:"–"}
details.faq p{padding-right:2rem;color:var(--ink-3);font-size:var(--t-sm)}

.cta{background:var(--ink);color:#C9D8E4;border-radius:var(--radius-lg);
  padding:clamp(2rem,4vw,3.4rem);position:relative;overflow:hidden}
.cta::after{content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(620px 300px at 92% 0%,rgba(0,167,157,.24),transparent 62%)}
.cta>*{position:relative;z-index:1}
.cta h2{color:#fff;margin-bottom:.5rem}
.cta p{color:#AFC5D6;max-width:54ch}

/* Forms */
.field{margin-bottom:1.1rem}
.field label{display:block;font-weight:620;font-size:var(--t-sm);color:var(--ink);
  margin-bottom:.4rem}
.field .req{color:var(--signal)}
.field input,.field select,.field textarea{width:100%;padding:.78rem .9rem;
  border:1.5px solid var(--line);border-radius:var(--radius-sm);font:inherit;
  font-size:var(--t-sm);color:var(--ink);background:#fff;transition:border-color .16s}
.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--brand);outline:none}
.field textarea{min-height:120px;resize:vertical}
.field .hint{font-size:var(--t-xs);color:var(--muted);margin-top:.3rem}
.hp{position:absolute;left:-9999px}  /* honeypot */
@media(min-width:620px){.field-row{display:grid;grid-template-columns:1fr 1fr;gap:0 1rem}}

.nap{font-style:normal;line-height:1.75}
.nap dt{font-size:var(--t-xs);text-transform:uppercase;letter-spacing:.07em;
  color:var(--muted);margin-top:.85rem}
.nap dd{margin:.1rem 0 0;color:var(--ink-2)}

table.spec{width:100%;border-collapse:collapse;font-size:var(--t-sm);margin:1.2rem 0}
table.spec th,table.spec td{text-align:left;padding:.7rem .8rem;
  border-bottom:1px solid var(--line)}
table.spec th{color:var(--ink);font-weight:650;width:40%;background:var(--surface)}

.article-layout>article,.article-layout>aside{min-width:0}
.article-layout{display:grid;gap:clamp(2rem,4vw,3.5rem);align-items:start}
@media(min-width:980px){.article-layout{grid-template-columns:minmax(0,1fr) 330px}}
.article-layout article{max-width:none}
.article-layout article h2{font-size:var(--t-xl);margin-top:2.2rem}
.article-layout article h2:first-child{margin-top:0}
.article-layout article h3{font-size:var(--t-md);margin-top:1.6rem}
.article-layout article p{font-size:var(--t-md);line-height:1.72}
.article-layout aside{position:sticky;top:96px}
@media(max-width:979px){.article-layout aside{position:static}}

/* --- 11. Footer --------------------------------------------------------- */
footer.site{background:var(--ink);color:#93ADC2;padding-block:clamp(3rem,5vw,4.5rem) 0;
  font-size:var(--t-sm)}
footer.site h4{color:#fff;font-size:var(--t-xs);text-transform:uppercase;
  letter-spacing:.09em;margin-bottom:1rem}
footer.site a{color:#B6CBDA;text-decoration:none}
footer.site a:hover{color:#fff;text-decoration:underline}
footer.site ul{list-style:none;padding:0;margin:0}
footer.site li{margin:.42rem 0}
.foot-grid{display:grid;gap:2.2rem;grid-template-columns:repeat(auto-fit,minmax(min(100%,170px),1fr))}
.foot-brand{grid-column:1/-1}
@media(min-width:940px){.foot-brand{grid-column:span 2}}
.foot-bot{border-top:1px solid rgba(255,255,255,.1);margin-top:3rem;
  padding-block:1.5rem;display:flex;gap:1rem 2rem;flex-wrap:wrap;
  justify-content:space-between;font-size:var(--t-xs);color:#7E97AC}

/* --- 12. Print ---------------------------------------------------------- */
@media print{
  .masthead,.topbar,footer.site,.cta,.btn-row,.nav-toggle{display:none!important}
  body{color:#000}
  a::after{content:" (" attr(href) ")";font-size:.8em;color:#555}
}