/* ==========================================================================
   ADAPHARMA — Global Design System
   Type roles: Space Grotesk (display/technical headings), Inter (body/UI),
   IBM Plex Mono (regulatory data — CAS numbers, lot codes, specifications)
   ========================================================================== */

:root{
  /* Color */
  --navy-950:#071527;
  --navy-900:#0B1F3A;
  --navy-800:#123259;
  --navy-700:#1B4272;
  --cyan-600:#007B96; /* darkened from #00829E for WCAG AA 4.5:1 on white */
  --cyan-500:#00A8CC;
  --cyan-400:#3FC5E4;
  --cyan-100:#E3F7FB;
  --gray-50:#F6F8FA;
  --gray-100:#EEF1F4;
  --gray-200:#E2E7EC;
  --gray-300:#CDD5DE;
  --gray-500:#697683; /* darkened from #7C8B9B for WCAG AA 4.5:1 on white */
  --gray-700:#465264;
  --white:#FFFFFF;
  --ink:#0B1F3A;

  /* Type */
  --font-display:'Space Grotesk', 'Arial Narrow', sans-serif;
  --font-body:'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono:'IBM Plex Mono', 'Courier New', monospace;

  /* Layout */
  --max-w:1280px;
  --gutter:clamp(20px, 5vw, 64px);
  --radius-sm:2px;
  --radius-md:4px;
  --border:1px solid var(--gray-200);
  --border-dark:1px solid rgba(255,255,255,0.14);

  --ease:cubic-bezier(.22,.61,.36,1);
}

*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto;}
  *,*::before,*::after{animation-duration:0.001ms !important;animation-iteration-count:1 !important;transition-duration:0.001ms !important;scroll-behavior:auto !important;}
}

body{
  margin:0;
  font-family:var(--font-body);
  color:var(--ink);
  background:var(--white);
  -webkit-font-smoothing:antialiased;
  line-height:1.55;
  font-size:16px;
}

img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
ul{margin:0;padding:0;list-style:none;}
button{font-family:inherit;cursor:pointer;}

h1,h2,h3,h4{
  font-family:var(--font-display);
  color:var(--navy-900);
  margin:0 0 .5em;
  line-height:1.12;
  letter-spacing:-0.01em;
  font-weight:600;
}
h1{font-size:clamp(2.4rem,4.4vw,4.1rem);letter-spacing:-0.02em;}
h2{font-size:clamp(1.9rem,3vw,2.75rem);}
h3{font-size:clamp(1.25rem,1.7vw,1.55rem);}
p{margin:0 0 1em;color:var(--gray-700);}

.container{max-width:var(--max-w);margin:0 auto;padding:0 var(--gutter);}

.eyebrow{
  font-family:var(--font-mono);
  font-size:.72rem;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--cyan-600);
  display:flex;
  align-items:center;
  gap:.6em;
  margin-bottom:1.1em;
}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--cyan-500);display:inline-block;}

/* ---------- Focus & accessibility ---------- */
a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible, select:focus-visible{
  outline:2px solid var(--cyan-500);
  outline-offset:3px;
}
.skip-link{
  position:absolute;left:-999px;top:0;background:var(--navy-900);color:#fff;padding:12px 20px;z-index:999;
}
.skip-link:focus{left:16px;top:16px;}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:.6em;min-height:44px;
  font-family:var(--font-body);font-weight:600;font-size:.92rem;
  padding:.95em 1.7em;border-radius:var(--radius-sm);
  border:1px solid transparent;
  transition:transform .35s var(--ease), background .3s var(--ease), border-color .3s var(--ease), color .3s var(--ease);
  white-space:nowrap;
}
.btn-primary{background:var(--cyan-500);color:var(--navy-950);}
.btn-primary:hover{background:var(--cyan-400);transform:translateY(-2px);}
.btn-outline{border-color:rgba(255,255,255,.4);color:#fff;}
.btn-outline:hover{border-color:#fff;background:rgba(255,255,255,.08);transform:translateY(-2px);}
.btn-outline-dark{border-color:var(--navy-800);color:var(--navy-900);}
.btn-outline-dark:hover{background:var(--navy-900);color:#fff;transform:translateY(-2px);}
.btn-text{color:var(--navy-900);font-weight:600;font-size:.9rem;display:inline-flex;align-items:center;gap:.5em;border-bottom:1px solid var(--navy-900);padding-bottom:2px;}
.btn-text:hover{color:var(--cyan-600);border-color:var(--cyan-600);}
.btn-text svg{transition:transform .3s var(--ease);}
.btn-text:hover svg{transform:translateX(4px);}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:500;
  background:rgba(255,255,255,.86);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid var(--gray-200);
}
.header-inner{
  display:flex;align-items:center;justify-content:space-between;
  padding:18px var(--gutter);max-width:var(--max-w);margin:0 auto;
}
.brand{display:flex;align-items:center;gap:.65em;font-family:var(--font-display);font-weight:700;font-size:1.25rem;color:var(--navy-900);}
.brand .mark{width:30px;height:30px;flex-shrink:0;}
.brand .mark rect,.brand .mark path{transition:transform .4s var(--ease);}
.brand:hover .mark path{transform:translateY(-1px);}

.main-nav{display:flex;align-items:center;gap:2.1em;}
.main-nav a{
  font-size:.9rem;font-weight:500;color:var(--navy-800);position:relative;padding:6px 0;
}
.main-nav a::after{
  content:"";position:absolute;left:0;bottom:0;width:0;height:1px;background:var(--cyan-500);transition:width .3s var(--ease);
}
.main-nav a:hover::after,.main-nav a[aria-current="page"]::after{width:100%;}
.main-nav a[aria-current="page"]{color:var(--navy-900);font-weight:600;}

.header-actions{display:flex;align-items:center;gap:1.1em;}
.social-inline{display:flex;gap:.7em;}
.social-inline a{
  width:30px;height:30px;border-radius:50%;border:1px solid var(--gray-300);
  display:flex;align-items:center;justify-content:center;color:var(--navy-700);
  transition:all .3s var(--ease);
  position:relative;
}
/* Invisible extended hit area to meet the 44x44px touch-target minimum without enlarging the visual icon */
.social-inline a::before,.footer-social a::before{
  content:"";position:absolute;top:50%;left:50%;width:44px;height:44px;transform:translate(-50%,-50%);
}
.social-inline a:hover{background:var(--navy-900);border-color:var(--navy-900);color:#fff;transform:translateY(-2px);}
.social-inline svg{width:14px;height:14px;}

.nav-toggle{display:none;background:none;border:none;width:44px;height:44px;position:relative;} /* 44x44 touch target, WCAG 2.5.5 */
.nav-toggle span{position:absolute;left:10px;width:24px;height:2px;background:var(--navy-900);transition:all .3s var(--ease);}
.nav-toggle span:nth-child(1){top:10px;}
.nav-toggle span:nth-child(2){top:21px;}
.nav-toggle span:nth-child(3){top:32px;}
.nav-toggle.open span:nth-child(1){transform:translateY(11px) rotate(45deg);}
.nav-toggle.open span:nth-child(2){opacity:0;}
.nav-toggle.open span:nth-child(3){transform:translateY(-11px) rotate(-45deg);}

/* ---------- Hero ---------- */
.hero{
  position:relative;background:var(--navy-950);color:#fff;overflow:hidden;
  padding:clamp(90px,14vw,150px) 0 clamp(60px,9vw,110px);
}
.hero::before{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(rgba(63,197,228,.16) 1px, transparent 1px);
  background-size:26px 26px;
  mask-image:linear-gradient(to bottom, rgba(0,0,0,.9), transparent 78%);
  -webkit-mask-image:linear-gradient(to bottom, rgba(0,0,0,.9), transparent 78%);
}
.hero::after{
  content:"";position:absolute;right:-10%;top:-10%;width:60%;height:120%;
  background:radial-gradient(circle at center, rgba(0,168,204,.22), transparent 65%);
  pointer-events:none;
}
.hero-inner{position:relative;z-index:2;max-width:820px;}
.hero h1{color:#fff;}
.hero .lede{font-size:clamp(1.05rem,1.5vw,1.25rem);color:rgba(255,255,255,.72);max-width:640px;margin-bottom:2.2em;}
.hero-actions{display:flex;gap:1em;flex-wrap:wrap;margin-bottom:3.2em;}
.hero-coords{
  font-family:var(--font-mono);font-size:.72rem;color:rgba(255,255,255,.45);
  letter-spacing:.06em;position:absolute;right:var(--gutter);top:24px;text-align:right;z-index:2;display:none;
}

.trust-strip{
  border-top:1px solid rgba(255,255,255,.14);padding-top:2em;
  display:grid;grid-template-columns:repeat(4,1fr);gap:1.5em;
}
.trust-strip .stat-value{font-family:var(--font-display);font-size:clamp(1.6rem,2.4vw,2.3rem);color:#fff;font-weight:600;}
.trust-strip .stat-label{font-family:var(--font-mono);font-size:.68rem;letter-spacing:.08em;text-transform:uppercase;color:rgba(255,255,255,.5);margin-top:.3em;}

/* corner-tick technical frame, used on cards/images to evoke lab specification sheets */
.tick-frame{position:relative;}
.tick-frame::before,.tick-frame::after,.tick-frame .tf-br,.tick-frame .tf-bl{display:none;}
.tick-frame{padding:0;}
.tick{position:relative;}
.tick::before,.tick::after{
  content:"";position:absolute;width:14px;height:14px;
  border-top:1.5px solid var(--cyan-500);border-left:1.5px solid var(--cyan-500);
  top:-1px;left:-1px;
}
.tick::after{
  top:auto;left:auto;bottom:-1px;right:-1px;
  border-top:none;border-left:none;
  border-bottom:1.5px solid var(--cyan-500);border-right:1.5px solid var(--cyan-500);
}

/* ---------- Sections ---------- */
section{padding:clamp(64px,9vw,120px) 0;}
.section-head{max-width:640px;margin-bottom:3.2em;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.bg-gray{background:var(--gray-50);}
.bg-navy{background:var(--navy-950);color:#fff;}
.bg-navy h2,.bg-navy h3{color:#fff;}
.bg-navy p{color:rgba(255,255,255,.68);}

/* ---------- Grid / Cards ---------- */
.grid{display:grid;gap:1.4rem;}
.grid-3{grid-template-columns:repeat(3,1fr);}
.grid-4{grid-template-columns:repeat(4,1fr);}
.grid-2{grid-template-columns:repeat(2,1fr);}

.card{
  background:#fff;border:1px solid var(--gray-200);padding:2.2em 2em;
  transition:border-color .3s var(--ease), transform .35s var(--ease), box-shadow .35s var(--ease);
  position:relative;
}
.card:hover{transform:translateY(-4px);box-shadow:0 20px 40px -24px rgba(11,31,58,.25);border-color:var(--cyan-500);}
.card .card-index{font-family:var(--font-mono);font-size:.72rem;color:var(--cyan-600);letter-spacing:.08em;}
.card h3{margin-top:.6em;}
.card-icon{width:42px;height:42px;color:var(--cyan-600);margin-bottom:1.2em;}

.category-card{
  display:block;border:1px solid var(--gray-200);padding:2.4em 2em;background:#fff;
  transition:all .35s var(--ease);
}
.category-card:hover{border-color:var(--navy-900);background:var(--navy-950);}
.category-card:hover h3,.category-card:hover p{color:#fff;}
.category-card:hover .btn-text{color:#fff;border-color:#fff;}
.category-card .cat-index{font-family:var(--font-mono);font-size:.7rem;color:var(--cyan-600);}

/* ---------- Reveal animation ---------- */
.reveal{opacity:0;transform:translateY(22px);transition:opacity .8s var(--ease), transform .8s var(--ease);}
.reveal.in{opacity:1;transform:translateY(0);}
.reveal-delay-1{transition-delay:.08s;}
.reveal-delay-2{transition-delay:.16s;}
.reveal-delay-3{transition-delay:.24s;}
.reveal-delay-4{transition-delay:.32s;}

/* ---------- Data table (spec-sheet look) ---------- */
.spec-table{width:100%;border-collapse:collapse;font-size:.92rem;}
.spec-table tr{border-bottom:1px solid var(--gray-200);}
.spec-table th,.spec-table td{text-align:left;padding:.95em .3em;vertical-align:top;}
.spec-table th{width:38%;color:var(--gray-500);font-weight:500;font-family:var(--font-mono);font-size:.78rem;letter-spacing:.03em;text-transform:uppercase;}
.spec-table td{color:var(--navy-900);font-family:var(--font-mono);font-size:.88rem;}

.tag{
  display:inline-flex;align-items:center;font-family:var(--font-mono);font-size:.68rem;letter-spacing:.05em;
  text-transform:uppercase;padding:.35em .7em;border:1px solid var(--gray-300);color:var(--navy-700);
}
.tag-cyan{border-color:var(--cyan-500);color:var(--cyan-600);background:var(--cyan-100);}
.tag.active{background:var(--navy-900);color:#fff;border-color:var(--navy-900);}
button.tag{background:none;transition:all .25s var(--ease);}
button.tag:hover{border-color:var(--navy-900);}

.prose h2,.prose h3{margin-top:1.4em;}
.prose p{margin-bottom:1.2em;}
.prose ul,.prose ol{margin:0 0 1.2em 1.4em;color:var(--gray-700);}
.prose img{margin:1.5em 0;}
.prose a{color:var(--cyan-600);text-decoration:underline;}

/* Order tracking */
.status-badge{display:inline-flex;align-items:center;gap:.5em;font-family:var(--font-mono);font-size:.78rem;letter-spacing:.04em;text-transform:uppercase;padding:.4em .9em;border-radius:2px;}
.status-badge::before{content:"";width:8px;height:8px;border-radius:50%;}
.status-badge.status-active{background:var(--cyan-100);color:var(--cyan-600);}
.status-badge.status-active::before{background:var(--cyan-500);}
.status-badge.status-completed{background:#E7F7EF;color:#1E9E6B;}
.status-badge.status-completed::before{background:#1E9E6B;}
.status-badge.status-cancelled{background:#FDECEC;color:#D64545;}
.status-badge.status-cancelled::before{background:#D64545;}

.order-stepper{list-style:none;margin:0;padding:0;}
.order-stepper li{position:relative;padding:0 0 2.2em 2.6em;border-left:2px solid var(--gray-200);margin-left:11px;}
.order-stepper li:last-child{border-left-color:transparent;padding-bottom:0;}
.order-stepper li::before{content:"";position:absolute;left:-11px;top:0;width:20px;height:20px;border-radius:50%;background:#fff;border:2px solid var(--gray-300);}
.order-stepper li.done{border-left-color:var(--cyan-500);}
.order-stepper li.done::before{background:var(--cyan-500);border-color:var(--cyan-500);}
.order-stepper li.current::before{background:var(--navy-900);border-color:var(--navy-900);box-shadow:0 0 0 4px var(--cyan-100);}
.order-stepper li.current .step-label{color:var(--navy-900);font-weight:700;}
.order-stepper .step-label{font-family:var(--font-display);font-size:1.02rem;color:var(--gray-500);}
.order-stepper .step-note{margin-top:.4em;color:var(--gray-700);font-size:.92rem;}
.order-stepper .step-meta{font-family:var(--font-mono);font-size:.72rem;color:var(--gray-500);margin-top:.3em;}

.track-lookup{border:1px solid var(--gray-200);padding:2.4em;background:var(--gray-50);}
.track-lookup .field{margin-bottom:1.2em;}

/* ---------- Breadcrumbs ---------- */
.breadcrumbs{font-family:var(--font-mono);font-size:.75rem;color:var(--gray-500);padding:20px 0;}
.breadcrumbs a{color:var(--gray-500);}
.breadcrumbs a:hover{color:var(--cyan-600);}
.breadcrumbs .sep{margin:0 .5em;}
.breadcrumbs .current{color:var(--navy-900);}

/* ---------- Footer ---------- */
.site-footer{background:var(--navy-950);color:rgba(255,255,255,.7);padding:80px 0 0;}
.footer-top{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr 1.1fr;gap:2.5em;padding-bottom:60px;border-bottom:1px solid rgba(255,255,255,.12);}
.footer-brand .brand{color:#fff;}
.footer-brand p{color:rgba(255,255,255,.55);font-size:.9rem;max-width:280px;margin-top:1.2em;}
.footer-col h4{color:#fff;font-family:var(--font-mono);font-size:.72rem;letter-spacing:.1em;text-transform:uppercase;margin-bottom:1.3em;font-weight:500;}
.footer-col li{margin-bottom:.85em;}
.footer-col a{font-size:.9rem;color:rgba(255,255,255,.62);transition:color .25s var(--ease);}
.footer-col a:hover{color:var(--cyan-400);}
.footer-bottom{display:flex;justify-content:space-between;align-items:center;padding:28px 0;flex-wrap:wrap;gap:1em;}
.footer-bottom p{color:rgba(255,255,255,.4);font-size:.8rem;margin:0;}
.footer-social{display:flex;gap:.7em;}
.footer-social a{width:34px;height:34px;border-radius:50%;border:1px solid rgba(255,255,255,.2);display:flex;align-items:center;justify-content:center;transition:all .3s var(--ease);position:relative;}
.footer-social a:hover{background:var(--cyan-500);border-color:var(--cyan-500);}
.footer-social svg{width:15px;height:15px;color:#fff;}
.footer-legal{display:flex;gap:1.6em;}
.footer-legal a{font-size:.8rem;color:rgba(255,255,255,.5);}
.footer-legal a:hover{color:#fff;}

/* ---------- Forms ---------- */
.form-field{margin-bottom:1.5em;}
.form-field label{display:block;font-family:var(--font-mono);font-size:.72rem;letter-spacing:.06em;text-transform:uppercase;color:var(--navy-700);margin-bottom:.6em;}
.form-field input,.form-field select,.form-field textarea{
  width:100%;border:1px solid var(--gray-300);background:#fff;padding:.95em 1em;font-family:var(--font-body);font-size:.95rem;color:var(--navy-900);
  transition:border-color .25s var(--ease);
}
.form-field input:focus,.form-field select:focus,.form-field textarea:focus{border-color:var(--cyan-500);outline:none;}
.form-field textarea{resize:vertical;min-height:120px;}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:1.4em;}
.form-note{font-size:.78rem;color:var(--gray-500);margin-top:-.6em;}

/* ---------- Misc utility ---------- */
.flex-between{display:flex;align-items:center;justify-content:space-between;}
.text-center{text-align:center;}
.mt-0{margin-top:0;}
.mb-0{margin-bottom:0;}
.divider{height:1px;background:var(--gray-200);border:none;margin:3em 0;}
.divider-dark{background:rgba(255,255,255,.14);}

.stat-block{border-left:2px solid var(--cyan-500);padding-left:1.2em;}
.stat-block .num{font-family:var(--font-display);font-size:clamp(2.1rem,3vw,3rem);font-weight:600;color:var(--navy-900);}
.stat-block .lbl{font-family:var(--font-mono);font-size:.72rem;text-transform:uppercase;letter-spacing:.07em;color:var(--gray-500);margin-top:.3em;}

.timeline{border-left:1px solid var(--gray-300);margin-left:8px;}
.timeline-item{position:relative;padding:0 0 3em 2.4em;}
.timeline-item::before{content:"";position:absolute;left:-6px;top:4px;width:11px;height:11px;border-radius:50%;background:#fff;border:2px solid var(--cyan-500);}
.timeline-item .yr{font-family:var(--font-mono);color:var(--cyan-600);font-size:.85rem;letter-spacing:.05em;}

.cta-band{
  background:var(--navy-950);color:#fff;padding:clamp(56px,8vw,90px) 0;position:relative;overflow:hidden;
}
.cta-band::before{content:"";position:absolute;inset:0;background-image:radial-gradient(rgba(63,197,228,.14) 1px, transparent 1px);background-size:24px 24px;mask-image:radial-gradient(ellipse at 70% 50%, black, transparent 70%);-webkit-mask-image:radial-gradient(ellipse at 70% 50%, black, transparent 70%);}
.cta-band-inner{position:relative;z-index:2;display:flex;justify-content:space-between;align-items:center;gap:2em;flex-wrap:wrap;}
.cta-band h2{color:#fff;margin-bottom:.2em;}

/* ---------- Responsive ---------- */
@media (max-width:1024px){
  .grid-4{grid-template-columns:repeat(2,1fr);}
  .grid-3{grid-template-columns:repeat(2,1fr);}
  .footer-top{grid-template-columns:1fr 1fr;row-gap:2.5em;}
  .trust-strip{grid-template-columns:repeat(2,1fr);}
}
@media (max-width:860px){
  .main-nav{
    position:fixed;inset:0;top:66px;background:#fff;flex-direction:column;align-items:flex-start;
    padding:2.5em var(--gutter);gap:1.6em;transform:translateX(100%);transition:transform .4s var(--ease);
    overflow-y:auto;
  }
  .main-nav.open{transform:translateX(0);}
  .main-nav a{font-size:1.1rem;}
  .nav-toggle{display:block;}
  .header-actions .social-inline{display:none;}
  .grid-3,.grid-4,.grid-2{grid-template-columns:1fr;}
  .form-row{grid-template-columns:1fr;}
}
@media (max-width:600px){
  .footer-top{grid-template-columns:1fr;}
  .trust-strip{grid-template-columns:repeat(2,1fr);}
  .cta-band-inner{flex-direction:column;align-items:flex-start;}
}