/* =====================================================================
   Sai Sarvaa Biotech — public site styles
   Palette: matched to the company brochure — deep indigo/purple for
   headings and emphasis, a clear blue accent (from the logo mark and
   icon set), on the brochure's soft mint-green page background.
   Serif display type for authority, a technical sans for body/data.
   ===================================================================== */

:root{
  --ink:        #1B1E2B;
  --ink-soft:   #454A5E;
  --muted:      #666F6A;
  --paper:      #E7F5E9;
  --paper-dim:  #DAEEDD;
  --line:       #C4DCC7;
  --indigo:     #2B2E7A;
  --indigo-deep:#171A4C;
  --indigo-tint:#E9EAF6;
  --teal:       #1B7FA6;
  --teal-tint:  #E3F0F6;
  --gold:       #1F5FA3;
  --gold-tint:  #E5EEF7;
  --white:      #FFFFFF;
  --radius-s: 4px;
  --radius-m: 10px;
  --radius-l: 22px;
  --shadow: 0 18px 40px -22px rgba(22,26,66,0.35);
  --maxw: 1180px;
}

*,*::before,*::after{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }
body{
  margin:0;
  font-family:"IBM Plex Sans", -apple-system, Segoe UI, sans-serif;
  color:var(--ink);
  background:var(--paper);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
img{ max-width:100%; display:block; }
a{ color:inherit; text-decoration:none; }
ul{ margin:0; padding:0; list-style:none; }
h1,h2,h3,h4{
  font-family:"Newsreader", Georgia, serif;
  font-weight:600;
  line-height:1.15;
  margin:0 0 .5em;
  color:var(--indigo-deep);
}
h1{ font-size:clamp(2.1rem, 3.4vw, 3.2rem); font-weight:560; letter-spacing:-.01em; }
h2{ font-size:clamp(1.6rem, 2.4vw, 2.15rem); }
h3{ font-size:1.3rem; }
p{ margin:0 0 1em; color:var(--ink-soft); }
.container{ max-width:var(--maxw); margin:0 auto; padding:0 24px; }
:focus-visible{ outline:2px solid var(--teal); outline-offset:3px; }
@media (prefers-reduced-motion: reduce){ *{ animation-duration:.001ms !important; transition-duration:.001ms !important; } }

/* ---------- top utility bar ---------- */
.topbar{
  background:var(--indigo-deep); color:#DCE0F5;
  font-size:.82rem;
}
.topbar .container{ display:flex; justify-content:space-between; align-items:center; padding-top:8px; padding-bottom:8px; flex-wrap:wrap; gap:8px; }
.topbar a{ color:#DCE0F5; }
.topbar .tb-links{ display:flex; gap:20px; }
.topbar .tb-links span, .topbar .tb-links a{ display:inline-flex; align-items:center; gap:6px; }
.topbar .tb-certs{ opacity:.92; display:flex; align-items:center; gap:18px; }
.cert-badge{ display:inline-flex; align-items:center; gap:6px; white-space:nowrap; margin-right:18px; }
.cert-badge:last-child{ margin-right:0; }
.cert-badge-text{ opacity:.8; }
.cert-seal{ width:16px; height:16px; flex:none; color:#9FDAD3; }
.cert-badge img{ width:18px; height:18px; object-fit:contain; flex:none; border-radius:2px; background:#fff; }

/* ---------- header / nav ---------- */
.site-header{
  background:var(--paper); border-bottom:1px solid var(--line);
  position:sticky; top:0; z-index:40;
}
.site-header .container{ display:flex; align-items:center; justify-content:space-between; padding-top:14px; padding-bottom:14px; max-width:1320px; gap:18px; }
.brand{ display:flex; align-items:center; gap:12px; }
.brand-mark{ width:44px; height:44px; flex:none; }
.brand-text{ line-height:1.15; }
.brand-text strong{ font-family:"Newsreader",serif; font-size:1.18rem; color:var(--indigo-deep); display:block; }
.brand-text span{ font-size:.72rem; letter-spacing:.03em; color:var(--muted); }

.nav-toggle{ display:none; background:none; border:1px solid var(--line); border-radius:8px; padding:8px 10px; }
.nav-toggle span, .nav-toggle span::before, .nav-toggle span::after{
  display:block; width:20px; height:2px; background:var(--ink); position:relative; content:"";
}
.nav-toggle span::before{ top:-6px; } .nav-toggle span::after{ top:4px; }

.main-nav ul{ display:flex; gap:0; align-items:center; flex-wrap:wrap; justify-content:flex-end; }
.main-nav a{
  display:inline-block; padding:10px 11px; font-size:.87rem; color:var(--ink-soft); white-space:nowrap;
  border-radius:999px; transition:background .15s, color .15s;
}
.main-nav a:hover{ background:var(--indigo-tint); color:var(--indigo-deep); }
.main-nav a.active{ background:var(--indigo); color:#fff; }
.main-nav .nav-cta{ background:var(--gold); color:#fff; margin-left:8px; padding:10px 18px; }
.main-nav .nav-cta:hover{ background:#164A80; color:#fff; }

/* ---------- buttons ---------- */
.btn{
  display:inline-flex; align-items:center; gap:8px; padding:13px 26px;
  border-radius:999px; font-size:.95rem; font-weight:600; border:1px solid transparent;
  cursor:pointer; transition:transform .15s ease, box-shadow .15s ease, background .15s ease;
}
.btn:hover{ transform:translateY(-1px); }
.btn-primary{ background:var(--gold); color:#fff; }
.btn-primary:hover{ background:#164A80; }
.btn-outline{ background:transparent; border-color:rgba(255,255,255,.55); color:inherit; }
.btn-outline:hover{ background:rgba(255,255,255,.12); }
.btn-ghost{ background:var(--indigo-tint); color:var(--indigo-deep); }
.btn-ghost:hover{ background:#e2e4f5; }
.btn-block{ width:100%; justify-content:center; }

/* ---------- hero ---------- */
.hero{ background:linear-gradient(180deg, var(--paper) 0%, var(--paper-dim) 100%); padding:64px 0 76px; overflow:hidden; }
.hero .container{ display:grid; grid-template-columns:1.05fr .95fr; gap:56px; align-items:center; }
.hero-kicker{ display:inline-flex; align-items:center; gap:8px; font-size:.82rem; color:var(--teal); font-weight:600; margin-bottom:16px; }
.hero-kicker::before{ content:""; width:7px; height:7px; border-radius:50%; background:var(--teal); }
.hero h1{ margin-bottom:.4em; }
.hero-lead{ font-size:1.08rem; max-width:46ch; }
.hero-actions{ display:flex; gap:14px; margin-top:26px; flex-wrap:wrap; }
.hero-stats{ display:flex; gap:28px; margin-top:40px; flex-wrap:wrap; }
.hero-stats div strong{ display:block; font-family:"Newsreader",serif; font-size:1.7rem; color:var(--indigo-deep); }
.hero-stats div span{ font-size:.8rem; color:var(--muted); }
.hero-media{ position:relative; }
.hero-frame{
  border:10px solid var(--white); border-radius:var(--radius-l); overflow:hidden;
  box-shadow:var(--shadow); transform:rotate(1.2deg);
}
.hero-frame img{ width:100%; height:400px; object-fit:cover; }
.hero-badge{
  position:absolute; left:-18px; bottom:-22px; background:var(--indigo);
  color:#fff; border-radius:var(--radius-m); padding:16px 20px; box-shadow:var(--shadow);
  transform:rotate(-2deg); max-width:230px;
}
.hero-badge strong{ display:block; font-family:"Newsreader",serif; font-size:1.05rem; }
.hero-badge span{ font-size:.78rem; opacity:.85; }

/* ---------- certification strip ---------- */
.cert-strip{ background:var(--indigo-deep); color:#E7E9F7; padding:18px 0; }
.cert-strip .container{ display:flex; gap:28px; flex-wrap:wrap; align-items:center; justify-content:center; font-size:.86rem; letter-spacing:.02em; }
.cert-strip .divider{ opacity:.4; }

/* ---------- section scaffolding ---------- */
.section{ padding:88px 0; }
.section-alt{ background:var(--white); }
.section-tint{ background:var(--indigo-tint); }
.section-head{ max-width:680px; margin-bottom:44px; }
.section-head.center{ margin-left:auto; margin-right:auto; text-align:center; }
.eyebrow{ font-size:.8rem; font-weight:600; color:var(--teal); letter-spacing:.02em; margin-bottom:10px; display:block; }

/* ---------- two-col intro ---------- */
.intro-grid{ display:grid; grid-template-columns:.9fr 1.1fr; gap:56px; align-items:center; }
.intro-grid.reverse{ direction:rtl; } .intro-grid.reverse > *{ direction:ltr; }
.intro-media img{ border-radius:var(--radius-l); }

/* ---------- segment pills ---------- */
.segment-grid{ display:grid; grid-template-columns:repeat(3,1fr); gap:16px; }
.segment-card{
  background:var(--white); border:1px solid var(--line); border-radius:var(--radius-m);
  padding:22px 22px; transition:border-color .15s, transform .15s;
}
.segment-card:hover{ border-color:var(--teal); transform:translateY(-3px); }
.segment-card .seg-index{ font-family:"Newsreader",serif; color:var(--teal); font-size:.85rem; }
.segment-card h3{ margin:6px 0 6px; font-size:1.08rem; }
.segment-card p{ font-size:.88rem; margin:0; }

/* ---------- process steps ---------- */
.process-list{ display:flex; flex-direction:column; gap:0; }
.process-step{ display:grid; grid-template-columns:64px 1fr auto; gap:28px; align-items:center; padding:30px 0; border-top:1px solid var(--line); }
.process-step:last-child{ border-bottom:1px solid var(--line); }
.process-num{ font-family:"Newsreader",serif; font-size:2rem; color:var(--gold); }
.process-copy h3{ margin-bottom:6px; }
.process-copy p{ margin:0; max-width:64ch; }
.process-thumb{ width:150px; height:110px; border-radius:var(--radius-s); overflow:hidden; }
.process-thumb img{ width:100%; height:100%; object-fit:cover; }

/* ---------- competency / value cards ---------- */
.card-grid{ display:grid; grid-template-columns:repeat(2,1fr); gap:22px; }
.card-grid.cols-3{ grid-template-columns:repeat(3,1fr); }
.feature-card{
  background:var(--white); border:1px solid var(--line); border-radius:var(--radius-m); overflow:hidden;
  display:flex; flex-direction:column;
}
.feature-card .fc-media{ height:170px; }
.feature-card .fc-media img{ width:100%; height:100%; object-fit:cover; }
.feature-card .fc-body{ padding:22px; }
.feature-card h3{ font-size:1.08rem; margin-bottom:8px; }
.feature-card p{ font-size:.9rem; margin:0; }

.value-card{ background:var(--white); border:1px solid var(--line); border-radius:var(--radius-m); padding:24px; }
.value-card .icon{ width:38px; height:38px; color:var(--teal); margin-bottom:14px; display:inline-block; }
.icon svg{ width:100%; height:100%; display:block; }
.value-card h3{ font-size:1.02rem; margin-bottom:6px; }
.value-card p{ font-size:.88rem; margin:0; }

/* ---------- stat / why-choose band ---------- */
.why-grid{ display:grid; grid-template-columns:repeat(4,1fr); gap:20px; }
.why-item{ text-align:left; padding:24px 6px; border-top:2px solid var(--gold); }
.why-item h3{ font-size:1.02rem; margin-bottom:6px; }
.why-item p{ font-size:.87rem; margin:0; }

/* ---------- global reach ---------- */
.reach{ position:relative; border-radius:var(--radius-l); overflow:hidden; background:var(--indigo); color:#fff; padding:56px; }
.reach::before{ content:""; position:absolute; inset:0; background:url('../images/facility/global-map.png') center/cover no-repeat; opacity:.18; }
.reach-inner{ position:relative; max-width:640px; }
.reach h2{ color:#fff; }
.reach p{ color:#D9DBF2; }

/* ---------- CTA banner ---------- */
.cta-banner{ background:var(--indigo-deep); color:#fff; border-radius:var(--radius-l); padding:52px 56px; display:flex; justify-content:space-between; align-items:center; gap:24px; flex-wrap:wrap; }
.cta-banner h2{ color:#fff; margin-bottom:6px; }
.cta-banner p{ color:#C9CCE8; margin:0; }

/* ---------- gallery ---------- */
.gallery-grid{ display:grid; grid-template-columns:repeat(4,1fr); gap:14px; }
.gallery-grid figure{ margin:0; border-radius:var(--radius-s); overflow:hidden; position:relative; aspect-ratio:4/3; background:var(--paper-dim); }
.gallery-grid img{ width:100%; height:100%; object-fit:cover; }
.gallery-grid figcaption{
  position:absolute; left:0; right:0; bottom:0; padding:10px 12px; font-size:.76rem;
  background:linear-gradient(0deg, rgba(16,18,45,.82), transparent); color:#fff;
}
.gallery-filter{ display:flex; gap:10px; flex-wrap:wrap; margin-bottom:28px; }
.gallery-filter button{
  background:var(--white); border:1px solid var(--line); border-radius:999px; padding:8px 16px;
  font-size:.84rem; cursor:pointer; color:var(--ink-soft);
}
.gallery-filter button.active{ background:var(--indigo); color:#fff; border-color:var(--indigo); }

/* ---------- contact ---------- */
.contact-grid{ display:grid; grid-template-columns:.85fr 1.15fr; gap:48px; }
.contact-location-photo{
  border-radius:var(--radius-m); overflow:hidden; margin-bottom:16px; border:1px solid var(--line);
  max-height:230px;
}
.contact-location-photo img{ width:100%; height:100%; object-fit:cover; object-position:center; display:block; }
.contact-card{ background:var(--white); border:1px solid var(--line); border-radius:var(--radius-m); padding:26px; margin-bottom:16px; }
.contact-card h4{ font-family:"Newsreader",serif; font-size:1rem; margin-bottom:4px; color:var(--indigo-deep); }
.contact-card p{ margin:0; font-size:.92rem; }
.form-grid{ display:grid; grid-template-columns:1fr 1fr; gap:16px; }
.form-grid .full{ grid-column:1 / -1; }
label{ display:block; font-size:.84rem; font-weight:600; color:var(--indigo-deep); margin-bottom:6px; }
input[type=text], input[type=email], input[type=tel], textarea, select{
  width:100%; padding:12px 14px; border:1px solid var(--line); border-radius:var(--radius-s);
  font-family:inherit; font-size:.94rem; background:var(--white); color:var(--ink);
}
input:focus, textarea:focus, select:focus{ border-color:var(--teal); }
textarea{ resize:vertical; min-height:120px; }
.field{ margin-bottom:16px; }
.alert{ padding:14px 18px; border-radius:var(--radius-s); font-size:.92rem; margin-bottom:20px; }
.alert-success{ background:#E4F4E4; color:#1F5E20; border:1px solid #BFE3BF; }
.alert-error{ background:#FBE7E7; color:#7A2020; border:1px solid #EFC0C0; }

/* ---------- footer ---------- */
.site-footer{ background:var(--indigo-deep); color:#C7CAE4; padding:64px 0 0; }
.footer-grid{ display:grid; grid-template-columns:1.4fr 1fr 1fr 1.1fr; gap:36px; padding-bottom:44px; border-bottom:1px solid rgba(255,255,255,.12); }
.footer-grid h4{ color:#fff; font-family:"Newsreader",serif; font-size:1rem; margin-bottom:16px; }
.footer-grid p, .footer-grid li{ font-size:.88rem; color:#B4B8DA; margin-bottom:8px; }
.footer-grid a:hover{ color:#fff; }
.footer-brand strong{ color:#fff; font-family:"Newsreader",serif; font-size:1.15rem; display:block; margin-bottom:8px; }
.footer-bottom{ display:flex; justify-content:space-between; padding:22px 0; font-size:.8rem; color:#8A8FBD; flex-wrap:wrap; gap:10px; }
.footer-social{ display:flex; gap:10px; margin-top:14px; }
.footer-social a{
  width:32px; height:32px; border-radius:50%; background:rgba(255,255,255,.08); display:flex;
  align-items:center; justify-content:center; color:#C7CAE4; transition:background .15s, color .15s;
}
.footer-social a:hover{ background:var(--teal); color:#fff; }
.footer-social svg{ width:16px; height:16px; }

/* ---------- misc ---------- */
.page-hero{ background:var(--indigo-deep); color:#fff; padding:58px 0; }
.page-hero .eyebrow{ color:#9FDAD3; }
.page-hero h1{ color:#fff; margin-bottom:8px; }
.page-hero p{ color:#C9CCE8; max-width:60ch; margin:0; }
.breadcrumb{ font-size:.82rem; color:#9BA0C9; margin-bottom:10px; }
.breadcrumb a:hover{ color:#fff; }

.pill-list{ display:flex; flex-wrap:wrap; gap:10px; }
.pill-list li{ background:var(--white); border:1px solid var(--line); padding:9px 16px; border-radius:999px; font-size:.86rem; }

/* ---------- FAQs ---------- */
.faq-group{ margin-bottom:36px; }
.faq-cat-title{ font-size:1.1rem; margin-bottom:14px; color:var(--indigo-deep); }
.faq-list{ display:flex; flex-direction:column; gap:10px; }
.faq-item{ background:var(--white); border:1px solid var(--line); border-radius:var(--radius-m); overflow:hidden; }
.faq-item summary{
  list-style:none; cursor:pointer; padding:16px 20px; display:flex; justify-content:space-between; align-items:center;
  gap:16px; font-weight:600; color:var(--indigo-deep); font-size:.96rem;
}
.faq-item summary::-webkit-details-marker{ display:none; }
.faq-toggle{ position:relative; width:18px; height:18px; flex:none; }
.faq-toggle::before, .faq-toggle::after{ content:""; position:absolute; background:var(--teal); border-radius:2px; }
.faq-toggle::before{ width:14px; height:2px; top:8px; left:2px; }
.faq-toggle::after{ width:2px; height:14px; top:2px; left:8px; transition:transform .15s; }
.faq-item[open] .faq-toggle::after{ transform:rotate(90deg); opacity:0; }
.faq-answer{ padding:0 20px 18px; color:var(--ink-soft); font-size:.92rem; max-width:70ch; }

/* ---------- social media ---------- */
.social-card{ display:block; text-decoration:none; transition:transform .15s, border-color .15s; }
.social-card:hover{ transform:translateY(-3px); border-color:var(--teal); }
.social-card h3{ margin-bottom:4px; }

table.data{ width:100%; border-collapse:collapse; }
table.data th, table.data td{ border:1px solid var(--line); padding:10px 12px; text-align:left; }
table.data th{ background:var(--paper-dim); width:160px; }
table.data td.num, table.data th.num{ text-align:right; }

.cert-doc-frame{
  border:10px solid var(--white); border-radius:var(--radius-s); box-shadow:var(--shadow);
  background:#fff; padding:0; overflow:hidden;
}
.cert-doc-frame img{ width:100%; display:block; }

/* ---------- responsive ---------- */
@media (max-width: 1180px){
  .nav-toggle{ display:block; }
  .main-nav{
    position:absolute; top:100%; left:0; right:0; background:var(--paper);
    border-bottom:1px solid var(--line); display:none; padding:10px 24px 18px;
  }
  .main-nav.open{ display:block; }
  .main-nav ul{ flex-direction:column; align-items:stretch; }
  .main-nav a{ padding:12px 10px; font-size:.94rem; }
  .main-nav .nav-cta{ margin-left:0; margin-top:6px; text-align:center; }
}
@media (max-width: 980px){
  .hero .container{ grid-template-columns:1fr; }
  .hero-media{ order:-1; }
  .intro-grid{ grid-template-columns:1fr; }
  .card-grid, .card-grid.cols-3{ grid-template-columns:repeat(2,1fr); }
  .segment-grid{ grid-template-columns:repeat(2,1fr); }
  .why-grid{ grid-template-columns:repeat(2,1fr); }
  .gallery-grid{ grid-template-columns:repeat(3,1fr); }
  .contact-grid{ grid-template-columns:1fr; }
  .footer-grid{ grid-template-columns:1fr 1fr; }
}
@media (max-width: 720px){
  .topbar .tb-certs{ display:none; }
  .card-grid, .card-grid.cols-3, .segment-grid, .why-grid{ grid-template-columns:1fr; }
  .gallery-grid{ grid-template-columns:repeat(2,1fr); }
  .form-grid{ grid-template-columns:1fr; }
  .process-step{ grid-template-columns:1fr; text-align:left; }
  .process-thumb{ width:100%; height:160px; }
  .cta-banner{ padding:34px 26px; }
  .footer-grid{ grid-template-columns:1fr; }
  .section{ padding:56px 0; }
}