/* =====================================================
   Navjivan Valves — Main Stylesheet
   Clean, dependency-free CSS. Mobile-first.
   ===================================================== */

:root{
  --red: #ED1C24;
  --red-dark: #C4151C;
  --navy: #101828;
  --navy-2: #1C2434;
  --ink: #1A1A1A;
  --text: #4A4F57;
  --text-light: #737A85;
  --bg: #FFFFFF;
  --bg-alt: #F6F7F9;
  --bg-navy: #0D1420;
  --border: #E4E7EC;
  --white: #FFFFFF;
  --radius: 10px;
  --radius-sm: 6px;
  --shadow: 0 2px 10px rgba(16,24,40,.06);
  --shadow-md: 0 8px 24px rgba(16,24,40,.10);
  --container: 1200px;
  --font-head: "Barlow Condensed", "Arial Narrow", Arial, sans-serif;
  --font-body: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-body);
  color:var(--text);
  background:var(--bg);
  line-height:1.65;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;}
svg{vertical-align:middle;flex-shrink:0;}
a{color:var(--red);text-decoration:none;}
a:hover{color:var(--red-dark);}
ul{margin:0;padding:0;}
h1,h2,h3,h4{
  font-family:var(--font-head);
  color:var(--navy);
  line-height:1.15;
  font-weight:700;
  margin:0 0 .5em;
  letter-spacing:.2px;
}
h1{font-size:clamp(2rem,5vw,3rem);}
h2{font-size:clamp(1.6rem,3.6vw,2.2rem);}
h3{font-size:1.3rem;}
h4{font-size:1.05rem;}
p{margin:0 0 1em;}
.container{max-width:var(--container);margin:0 auto;padding:0 20px;}
section{padding:64px 0;}
.section-alt{background:var(--bg-alt);}
.section-navy{background:var(--bg-navy);color:#C7CCD6;}
.section-navy h2, .section-navy h3{color:#fff;}

/* Skip link */
.skip-link{
  position:absolute;left:-999px;top:0;background:var(--red);color:#fff;
  padding:10px 16px;z-index:2000;border-radius:0 0 8px 0;
}
.skip-link:focus{left:0;}

/* Focus visibility */
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible{
  outline:3px solid var(--red);outline-offset:2px;
}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;gap:8px;
  padding:13px 26px;border-radius:6px;font-weight:600;
  font-size:.95rem;border:2px solid transparent;cursor:pointer;
  transition:.2s ease;white-space:nowrap;
}
.btn-primary{background:var(--red);color:#fff;}
.btn-primary:hover{background:var(--red-dark);color:#fff;}
.btn-outline{background:transparent;border-color:currentColor;color:var(--navy);}
.btn-outline:hover{background:var(--navy);color:#fff;border-color:var(--navy);}
.btn-white{background:#fff;color:var(--navy);}
.btn-white:hover{background:var(--red);color:#fff;}
.btn-block{width:100%;justify-content:center;}
.btn-sm{padding:9px 18px;font-size:.85rem;}

/* ---------- Top bar ---------- */
.topbar{
  background:var(--navy);color:#B8BEC9;font-size:.82rem;
}
.topbar .container{
  display:flex;justify-content:space-between;align-items:center;
  padding-top:8px;padding-bottom:8px;gap:12px;flex-wrap:wrap;
}
.topbar a{color:#E7E9ED;display:inline-flex;align-items:center;gap:6px;}
.topbar a:hover{color:var(--red);}
.topbar-links{display:flex;align-items:center;gap:22px;flex-wrap:wrap;}
.topbar-links span{display:inline-flex;align-items:center;gap:6px;}
.topbar-social{display:flex;gap:10px;}

/* ---------- Header / Nav ---------- */
.site-header{
  position:sticky;top:0;z-index:1000;background:#fff;
  box-shadow:0 1px 0 var(--border);
}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;padding:14px 0;gap:20px;}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.logo img{height:44px;width:auto;}
.logo-text{font-family:var(--font-head);font-weight:700;font-size:1.3rem;color:var(--navy);}
.logo-text span{color:var(--red);}

.main-nav{display:flex;align-items:center;gap:2px;}
.main-nav > ul{display:flex;list-style:none;align-items:center;gap:2px;}
.main-nav > ul > li{position:relative;}
.main-nav > ul > li > a{
  display:block;padding:12px 14px;color:var(--navy);font-weight:600;
  font-size:.95rem;border-radius:6px;
}
.main-nav > ul > li > a:hover,
.main-nav > ul > li.active > a{color:var(--red);}

.has-dropdown > a::after{content:"▾";font-size:.7em;margin-left:5px;}
.dropdown{
  display:none;position:absolute;top:100%;left:0;background:#fff;
  min-width:240px;box-shadow:var(--shadow-md);border-radius:8px;
  padding:10px;border:1px solid var(--border);list-style:none;
}
.has-dropdown:hover .dropdown,
.has-dropdown:focus-within .dropdown{display:block;}
.dropdown li a{
  display:block;padding:9px 12px;border-radius:6px;color:var(--text);font-size:.92rem;font-weight:500;
}
.dropdown li a:hover{background:var(--bg-alt);color:var(--red);}
.dropdown-columns{display:flex;gap:24px;padding:16px;min-width:460px;}
.dropdown-columns .col h4{font-size:.75rem;text-transform:uppercase;letter-spacing:.06em;color:var(--text-light);margin-bottom:8px;font-family:var(--font-body);font-weight:700;}
.dropdown-columns .col ul{list-style:none;}
.dropdown-columns .col a{display:block;padding:6px 0;color:var(--text);font-size:.92rem;}
.dropdown-columns .col a:hover{color:var(--red);}

.nav-cta{display:flex;align-items:center;gap:14px;flex-shrink:0;}
.nav-phone{display:flex;align-items:center;gap:8px;font-weight:700;color:var(--navy);font-size:.95rem;}
.nav-phone svg{flex-shrink:0;color:var(--red);}

.hamburger{
  display:none;background:none;border:2px solid var(--border);border-radius:6px;
  width:44px;height:44px;padding:0;cursor:pointer;flex-shrink:0;
}
.hamburger span{display:block;width:20px;height:2px;background:var(--navy);margin:4px auto;transition:.2s;}
.hamburger.open span:nth-child(1){transform:translateY(6px) rotate(45deg);}
.hamburger.open span:nth-child(2){opacity:0;}
.hamburger.open span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}

/* ---------- Breadcrumbs ---------- */
.breadcrumb-bar{background:var(--bg-alt);border-bottom:1px solid var(--border);}
.breadcrumb{list-style:none;display:flex;flex-wrap:wrap;gap:6px;padding:12px 0;font-size:.85rem;color:var(--text-light);}
.breadcrumb li{display:flex;align-items:center;gap:6px;}
.breadcrumb li:not(:last-child)::after{content:"/";color:#C4C9D1;margin-left:6px;}
.breadcrumb a{color:var(--text-light);font-weight:500;}
.breadcrumb a:hover{color:var(--red);}
.breadcrumb li[aria-current] {color:var(--navy);font-weight:600;}

/* ---------- Hero ---------- */
.hero{
  background:linear-gradient(120deg,var(--navy) 0%, var(--navy-2) 60%, #26324a 100%);
  color:#fff;padding:80px 0 90px;position:relative;overflow:hidden;
}
.hero::after{
  content:"";position:absolute;right:-120px;top:-120px;width:420px;height:420px;
  background:radial-gradient(circle,rgba(237,28,36,.35),transparent 70%);
}
.hero-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:40px;align-items:center;position:relative;z-index:1;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;background:rgba(237,28,36,.15);
  border:1px solid rgba(237,28,36,.4);color:#FF8A8E;padding:6px 14px;border-radius:30px;
  font-size:.78rem;font-weight:700;letter-spacing:.06em;text-transform:uppercase;margin-bottom:18px;
}
.hero h1{color:#fff;margin-bottom:18px;}
.hero h1 em{font-style:normal;color:var(--red);}
.hero p.lead{color:#B8BEC9;font-size:1.08rem;max-width:560px;margin-bottom:28px;}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;}
.hero-stats{display:flex;gap:28px;margin-top:40px;flex-wrap:wrap;}
.hero-stats div{min-width:100px;}
.hero-stats strong{display:block;font-family:var(--font-head);font-size:2rem;color:#fff;}
.hero-stats span{font-size:.82rem;color:#9199A6;}
.hero-media{
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);
  border-radius:var(--radius);padding:20px;
}
.hero-media img{border-radius:6px;}

/* Page header (inner pages) */
.page-header{
  background:linear-gradient(120deg,var(--navy),var(--navy-2));
  color:#fff;padding:44px 0;
}
.page-header h1{color:#fff;margin-bottom:6px;}
.page-header p{color:#AEB4C0;margin:0;max-width:680px;}

/* ---------- Cards / grids ---------- */
.grid{display:grid;gap:26px;}
.grid-2{grid-template-columns:repeat(2,1fr);}
.grid-3{grid-template-columns:repeat(3,1fr);}
.grid-4{grid-template-columns:repeat(4,1fr);}

.section-head{max-width:680px;margin:0 auto 40px;text-align:center;}
.section-head .kicker{
  color:var(--red);font-weight:700;text-transform:uppercase;letter-spacing:.08em;
  font-size:.8rem;display:block;margin-bottom:8px;
}
.section-head.align-left{margin:0 0 36px;text-align:left;}

.card{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius);
  overflow:hidden;transition:.2s;display:flex;flex-direction:column;
}
.card:hover{box-shadow:var(--shadow-md);transform:translateY(-3px);}
.card img{aspect-ratio:4/3;object-fit:cover;width:100%;}
.card-body{padding:20px;flex:1;display:flex;flex-direction:column;}
.card-body h3{font-size:1.15rem;margin-bottom:8px;}
.card-body p{font-size:.92rem;color:var(--text-light);flex:1;}
.card-link{font-weight:700;font-size:.88rem;display:inline-flex;align-items:center;gap:6px;margin-top:10px;}
.card-link::after{content:"→";transition:.2s;}
.card:hover .card-link::after{transform:translateX(3px);}

.product-card .card-body{text-align:left;}
.tag{
  display:inline-block;background:var(--bg-alt);color:var(--navy);font-size:.72rem;
  font-weight:700;text-transform:uppercase;letter-spacing:.04em;padding:4px 9px;border-radius:4px;
  margin-bottom:10px;
}

.icon-card{padding:26px 22px;border:1px solid var(--border);border-radius:var(--radius);background:#fff;}
.icon-card .icon{
  width:52px;height:52px;border-radius:10px;background:rgba(237,28,36,.1);
  display:flex;align-items:center;justify-content:center;color:var(--red);margin-bottom:16px;
}
.icon-card h3{font-size:1.05rem;margin-bottom:6px;}
.icon-card p{font-size:.9rem;color:var(--text-light);margin:0;}

/* Why choose us list */
.feature-list{list-style:none;display:grid;grid-template-columns:repeat(2,1fr);gap:14px;}
.feature-list li{display:flex;gap:10px;align-items:flex-start;font-size:.94rem;color:var(--text);}
.feature-list li svg{flex-shrink:0;color:var(--red);margin-top:3px;}

/* ---------- Stats strip ---------- */
.stats-strip{background:var(--navy);color:#fff;padding:40px 0;}
.stats-strip .grid-4{text-align:center;}
.stats-strip strong{display:block;font-family:var(--font-head);font-size:2.6rem;color:var(--red);}
.stats-strip span{font-size:.85rem;color:#AEB4C0;}

/* ---------- Industries ---------- */
.industry-pill{
  display:flex;align-items:center;gap:10px;background:#fff;border:1px solid var(--border);
  border-radius:8px;padding:14px 16px;font-weight:600;font-size:.9rem;color:var(--navy);
}
.industry-pill svg{color:var(--red);flex-shrink:0;}

/* ---------- Brand logos strip ---------- */
.brand-strip{display:flex;flex-wrap:wrap;gap:14px;justify-content:center;align-items:center;}
.brand-chip{
  border:1px solid var(--border);border-radius:8px;padding:14px 22px;font-weight:700;
  color:var(--navy);background:#fff;font-family:var(--font-head);font-size:1rem;letter-spacing:.03em;
}

/* ---------- Testimonials ---------- */
.testimonial{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:26px;}
.testimonial p{font-style:italic;color:var(--text);font-size:.95rem;}
.testimonial .who{display:flex;align-items:center;gap:10px;margin-top:14px;}
.testimonial .avatar{
  width:40px;height:40px;border-radius:50%;background:var(--navy);color:#fff;
  display:flex;align-items:center;justify-content:center;font-weight:700;font-family:var(--font-head);
}
.testimonial .who strong{display:block;font-size:.9rem;color:var(--navy);}
.testimonial .who span{font-size:.78rem;color:var(--text-light);}

/* ---------- CTA banner ---------- */
.cta-banner{
  background:linear-gradient(120deg,var(--red),var(--red-dark));color:#fff;
  border-radius:var(--radius);padding:44px 40px;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:rgba(255,255,255,.85);margin:0;}

/* ---------- Product detail page ---------- */
.product-hero{display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:center;}
.product-hero img{border-radius:var(--radius);border:1px solid var(--border);}
.table-scroll{width:100%;overflow-x:auto;-webkit-overflow-scrolling:touch;border:1px solid var(--border);border-radius:8px;}
.spec-table{width:100%;min-width:420px;border-collapse:collapse;font-size:.92rem;}
.spec-table th,.spec-table td{text-align:left;padding:12px 14px;border-bottom:1px solid var(--border);}
.spec-table th{width:38%;color:var(--navy);font-weight:700;background:var(--bg-alt);white-space:nowrap;}
.spec-table tr:last-child th,.spec-table tr:last-child td{border-bottom:none;}

/* ---------- Logo strip (clientele / partner logos) ---------- */
.logo-strip{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;}
.logo-card{
  background:#fff;border:1px solid var(--border);border-radius:10px;
  padding:22px 16px;display:flex;align-items:center;justify-content:center;
  min-height:110px;transition:.2s;
}
.logo-card:hover{box-shadow:var(--shadow-md);transform:translateY(-2px);}
.logo-card img{max-height:56px;width:auto;max-width:100%;object-fit:contain;}
.type-card{border:1px solid var(--border);border-radius:var(--radius);padding:22px;background:#fff;}
.type-card h3{font-size:1.1rem;margin-bottom:8px;color:var(--red);}
.applist{list-style:none;display:grid;grid-template-columns:repeat(2,1fr);gap:10px;}
.applist li{padding:10px 14px;background:var(--bg-alt);border-radius:6px;font-size:.9rem;font-weight:600;color:var(--navy);}
.faq{border:1px solid var(--border);border-radius:8px;margin-bottom:12px;overflow:hidden;}
.faq summary{
  padding:16px 18px;font-weight:700;color:var(--navy);cursor:pointer;list-style:none;
  display:flex;justify-content:space-between;align-items:center;background:#fff;
}
.faq summary::-webkit-details-marker{display:none;}
.faq summary::after{content:"+";font-size:1.3rem;color:var(--red);font-weight:400;}
.faq[open] summary::after{content:"−";}
.faq .faq-a{padding:0 18px 18px;color:var(--text);font-size:.93rem;}
.price-note{
  background:var(--bg-alt);border-left:4px solid var(--red);padding:16px 18px;border-radius:0 8px 8px 0;
  font-size:.9rem;color:var(--text);
}
.related-products{display:flex;gap:10px;flex-wrap:wrap;}
.related-products a{
  padding:9px 16px;border:1px solid var(--border);border-radius:30px;font-size:.86rem;
  font-weight:600;color:var(--navy);
}
.related-products a:hover{border-color:var(--red);color:var(--red);}

/* ---------- Contact ---------- */
.contact-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:40px;}
.contact-info-card{
  background:var(--navy);color:#fff;border-radius:var(--radius);padding:32px;
}
.contact-info-card h3{color:#fff;}
.contact-item{display:flex;gap:14px;margin-bottom:22px;align-items:flex-start;}
.contact-item svg{color:var(--red);flex-shrink:0;margin-top:2px;}
.contact-item a, .contact-item span{color:#D4D8DF;font-size:.92rem;}
.contact-item strong{display:block;color:#fff;margin-bottom:3px;font-size:.9rem;}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
.form-group{margin-bottom:16px;}
.form-group.full{grid-column:1/-1;}
label{display:block;font-size:.85rem;font-weight:700;color:var(--navy);margin-bottom:6px;}
input,textarea,select{
  width:100%;padding:12px 14px;border:1px solid var(--border);border-radius:6px;
  font-family:var(--font-body);font-size:.94rem;color:var(--ink);background:#fff;
}
input:focus,textarea:focus,select:focus{border-color:var(--red);outline:none;}
textarea{resize:vertical;min-height:120px;}
.form-note{font-size:.8rem;color:var(--text-light);margin-top:8px;}
#form-status{margin-top:14px;font-size:.9rem;font-weight:600;}

/* ---------- Gallery ---------- */
.gallery-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;}
.gallery-grid img{aspect-ratio:1/1;object-fit:cover;border-radius:8px;border:1px solid var(--border);}

/* ---------- Footer ---------- */
.site-footer{background:var(--bg-navy);color:#9199A6;padding-top:56px;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr 1.1fr;gap:32px;padding-bottom:40px;}
.footer-grid h4{color:#fff;font-size:.9rem;text-transform:uppercase;letter-spacing:.05em;margin-bottom:16px;font-family:var(--font-body);}
.footer-grid ul{list-style:none;}
.footer-grid li{margin-bottom:10px;}
.footer-grid a{color:#9199A6;font-size:.9rem;}
.footer-grid a:hover{color:var(--red);}
.footer-logo{display:inline-flex;align-items:center;gap:10px;margin-bottom:16px;background:#fff;padding:10px 16px;border-radius:8px;}
.footer-logo img{height:34px;width:auto;}
.footer-about p{font-size:.88rem;color:#8890A0;max-width:280px;}
.footer-social{display:flex;gap:10px;margin-top:16px;}
.footer-social a{
  width:36px;height:36px;border-radius:50%;border:1px solid #2A3347;display:flex;
  align-items:center;justify-content:center;color:#9199A6;
}
.footer-social a:hover{background:var(--red);border-color:var(--red);color:#fff;}
.footer-bottom{
  border-top:1px solid #202A3B;padding:20px 0;display:flex;justify-content:space-between;
  align-items:center;flex-wrap:wrap;gap:10px;font-size:.82rem;
}
.footer-bottom a{color:#9199A6;}
.footer-bottom a:hover{color:var(--red);}
.footer-legal{display:flex;gap:18px;flex-wrap:wrap;}

/* Sticky mobile CTA */
.mobile-cta{
  display:none;position:fixed;bottom:0;left:0;right:0;z-index:900;background:#fff;
  border-top:1px solid var(--border);box-shadow:0 -4px 16px rgba(0,0,0,.08);
  padding:10px 14px;gap:10px;
}
.mobile-cta a{flex:1;display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:12px;border-radius:6px;font-weight:700;font-size:.88rem;}
.mobile-cta .call{background:var(--navy);color:#fff;}
.mobile-cta .whatsapp{background:#25D366;color:#fff;}

/* ---------- Utility ---------- */
.text-center{text-align:center;}
.mt-0{margin-top:0;}
.mb-0{margin-bottom:0;}
.small{font-size:.85rem;color:var(--text-light);}
.divider{height:1px;background:var(--border);margin:40px 0;}
.lazy-img{background:var(--bg-alt);}

/* ---------- Responsive ---------- */
@media (max-width:1024px){
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;}
  .footer-grid .col-locations{display:none;}
  .hero-grid{grid-template-columns:1fr;}
  .hero-media{max-width:480px;}
  .product-hero{grid-template-columns:1fr;}
  .grid-4{grid-template-columns:repeat(2,1fr);}
}
@media (max-width:860px){
  .topbar .topbar-links a.hide-tablet{display:none;}
  .main-nav{
    position:fixed;top:0;left:0;right:0;bottom:0;background:#fff;
    transform:translateX(100%);transition:.25s ease;z-index:1001;
    overflow-y:auto;padding:90px 20px 40px;
  }
  .main-nav.open{transform:translateX(0);}
  .main-nav > ul{flex-direction:column;align-items:stretch;width:100%;gap:0;}
  .main-nav > ul > li{border-bottom:1px solid var(--border);}
  .main-nav > ul > li > a{padding:16px 4px;}
  .dropdown{position:static;box-shadow:none;border:none;display:none;padding-left:14px;}
  .has-dropdown.open .dropdown{display:block;}
  .dropdown-columns{flex-direction:column;min-width:0;padding:0;gap:10px;}
  .hamburger{display:block;}
  .nav-phone{display:none;}
  body.nav-open{overflow:hidden;}
  .nav-overlay{
    display:none;position:fixed;inset:0;background:rgba(16,24,40,.5);z-index:1000;
  }
  body.nav-open .nav-overlay{display:block;}
  .mobile-cta{display:flex;}
  body{padding-bottom:64px;}
}
@media (max-width:768px){
  section{padding:44px 0;}
  .grid-2,.grid-3,.grid-4{grid-template-columns:1fr 1fr;}
  .logo-strip{grid-template-columns:repeat(3,1fr);}
  .hero{padding:50px 0 60px;}
  .hero-stats{gap:18px;}
  .contact-grid{grid-template-columns:1fr;}
  .form-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .gallery-grid{grid-template-columns:repeat(2,1fr);}
  .applist{grid-template-columns:1fr;}
  .feature-list{grid-template-columns:1fr;}
  .cta-banner{flex-direction:column;text-align:center;}
}
@media (max-width:520px){
  .grid-2,.grid-3,.grid-4{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;}
  .topbar-links{gap:12px;}
  h1{font-size:1.8rem;}
  .logo-strip{grid-template-columns:repeat(2,1fr);}
}

/* Print */
@media print{
  .site-header,.site-footer,.mobile-cta,.breadcrumb-bar{display:none;}
}