/* Blue Crust Industries — public website theme
   Deep navy #0b2a4a + sky-blue accent. No external assets. */
*{box-sizing:border-box}
:root{
  --navy:#0b2a4a; --navy2:#123a63; --sky:#2f9be8; --sky2:#7cc4f5; --ink:#1c2b3a;
  --muted:#5f7185; --line:#e3ebf3; --bg:#f6f9fc; --green:#25d366;
  --shadow:0 6px 24px rgba(11,42,74,.10); --radius:14px;
}
html{scroll-behavior:smooth}
body{margin:0;font-family:"Segoe UI",system-ui,-apple-system,Roboto,Arial,sans-serif;color:var(--ink);background:#fff;line-height:1.6}
img{max-width:100%}
a{color:var(--sky);text-decoration:none}
a:hover{text-decoration:underline}
.container{max-width:1180px;margin:0 auto;padding:0 18px}
h1,h2,h3,h4{color:var(--navy);line-height:1.25;margin:0 0 .5em}
.section{padding:64px 0}
.section.alt{background:var(--bg)}
.section-head{max-width:720px;margin:0 auto 34px;text-align:center}
.section-head .eyebrow{text-transform:uppercase;letter-spacing:2px;font-size:.75rem;font-weight:700;color:var(--sky)}
.section-head h2{font-size:1.9rem;margin-top:6px}
.section-head p{color:var(--muted)}
.btn{display:inline-block;padding:11px 22px;border-radius:9px;font-weight:600;border:1px solid transparent;cursor:pointer;font-size:.95rem}
.btn:hover{text-decoration:none;filter:brightness(1.06)}
.btn.primary{background:var(--sky);color:#fff}
.btn.navy{background:var(--navy);color:#fff}
.btn.ghost{background:transparent;border-color:#c9d8e8;color:var(--navy)}
.btn.wa{background:var(--green);color:#fff}
.flash{padding:12px 16px;border-radius:10px;margin:14px 0;font-weight:500}
.flash.success{background:#e6f7ec;color:#14532d;border:1px solid #bde8c9}
.flash.error{background:#fdecec;color:#7f1d1d;border:1px solid #f5c2c2}

/* topbar + header */
.topbar{background:var(--navy);color:#cfe3f5;font-size:.83rem;padding:7px 0}
.topbar a{color:#cfe3f5}
.topbar-in{display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap}
.tb-left{display:flex;align-items:center;gap:6px}
.tb-right{display:flex;gap:18px;flex-wrap:wrap}
.site-header{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:60;box-shadow:0 2px 10px rgba(11,42,74,.05)}
.header-in{display:flex;align-items:center;justify-content:space-between;gap:16px;padding-top:10px;padding-bottom:10px}
.brand{display:flex;align-items:center;gap:10px;color:var(--navy)}
.brand:hover{text-decoration:none}
.brand img{height:46px;width:auto;border-radius:8px}
.brand-text b{display:block;font-size:1.15rem;line-height:1.15}
.brand-text small{color:var(--muted);font-size:.75rem}
.main-nav{display:flex;align-items:center;gap:22px}
.main-nav a{color:var(--ink);font-weight:550;font-size:.95rem}
.main-nav a.active{color:var(--sky)}
.nav-cta{color:#fff !important}
.nav-toggle{display:none;background:none;border:0;font-size:1.5rem;cursor:pointer;color:var(--navy)}

/* hero slider */
.hero{position:relative;background:var(--navy);overflow:hidden}
.hero-slide{display:none;position:relative;min-height:520px}
.hero-slide.on{display:block}
.hero-slide img.bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.45}
.hero-inner{position:relative;z-index:2;display:flex;align-items:center;min-height:520px;padding:70px 18px}
.hero-copy{max-width:640px;color:#fff}
.hero-copy h1{color:#fff;font-size:2.6rem;margin-bottom:14px}
.hero-copy p{font-size:1.12rem;color:#dcebf8;margin:0 0 24px}
.hero-nav{position:absolute;z-index:3;top:50%;transform:translateY(-50%);background:rgba(255,255,255,.15);color:#fff;border:0;width:44px;height:44px;border-radius:50%;font-size:1.3rem;cursor:pointer}
.hero-nav:hover{background:var(--sky)}
.hero-prev{left:14px}.hero-next{right:14px}
.hero-dots{position:absolute;z-index:3;bottom:16px;left:0;right:0;text-align:center}
.hero-dots button{width:11px;height:11px;border-radius:50%;border:0;margin:0 4px;background:rgba(255,255,255,.45);cursor:pointer;padding:0}
.hero-dots button.on{background:#fff}

/* trust strip */
.trust-strip{background:var(--navy2);color:#fff}
.trust-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;padding:26px 18px}
.trust-item{text-align:center;padding:6px}
.trust-item b{display:block;font-size:1.55rem;color:var(--sky2)}
.trust-item span{font-size:.9rem;color:#cfe3f5}

/* about */
.about-grid{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center}
.about-grid img{border-radius:var(--radius);box-shadow:var(--shadow);width:100%}
.why-list{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:22px}
.why-item{background:#fff;border:1px solid var(--line);border-radius:12px;padding:14px 16px;box-shadow:var(--shadow)}
.why-item .ic{font-size:1.4rem}
.why-item b{display:block;color:var(--navy);margin:4px 0}
.why-item p{margin:0;color:var(--muted);font-size:.9rem}

/* cards & grids */
.grid{display:grid;gap:22px}
.grid.c2{grid-template-columns:repeat(2,1fr)}
.grid.c3{grid-template-columns:repeat(3,1fr)}
.grid.c4{grid-template-columns:repeat(4,1fr)}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);display:flex;flex-direction:column}
.card .thumb{aspect-ratio:4/3;object-fit:cover;width:100%;display:block;background:var(--bg)}
.card .body{padding:16px 18px;flex:1;display:flex;flex-direction:column}
.card h3{font-size:1.05rem;margin-bottom:6px}
.card h3 a{color:var(--navy)}
.card p{color:var(--muted);font-size:.92rem;margin:0 0 10px}
.card .meta{margin-top:auto;font-size:.85rem;color:var(--muted);display:flex;justify-content:space-between;gap:8px;flex-wrap:wrap}
.card .meta b{color:var(--navy)}
.cat-card{position:relative;padding:0}
.cat-card img{aspect-ratio:16/10;object-fit:cover;width:100%;display:block}
.cat-card .overlay{position:absolute;inset:auto 0 0 0;background:linear-gradient(transparent,rgba(11,42,74,.92));color:#fff;padding:34px 18px 14px}
.cat-card .overlay h3{color:#fff;margin:0}
.cat-card .overlay p{color:#cfe3f5;font-size:.88rem;margin:2px 0 0}

/* process */
.process-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.step-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:22px;box-shadow:var(--shadow);position:relative}
.step-num{width:42px;height:42px;border-radius:50%;background:var(--navy);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:1.05rem;margin-bottom:12px}
.step-card h3{font-size:1rem}
.step-card p{color:var(--muted);font-size:.9rem;margin:0}

/* techniques / services */
.tech-card{text-align:center;padding:26px 20px}
.tech-card .ic{font-size:2.2rem}
.service-card .ic{font-size:1.8rem}

/* testimonials */
.testi-card{padding:24px}
.testi-card .stars{color:#f5a623;letter-spacing:2px}
.testi-card p{color:var(--ink);font-size:.96rem}
.testi-who b{color:var(--navy);display:block}
.testi-who span{color:var(--muted);font-size:.86rem}

/* FAQ */
.faq-item{border:1px solid var(--line);border-radius:12px;margin-bottom:10px;background:#fff;overflow:hidden}
.faq-q{width:100%;text-align:left;background:none;border:0;padding:16px 18px;font-size:1rem;font-weight:600;color:var(--navy);cursor:pointer;display:flex;justify-content:space-between;gap:10px}
.faq-a{display:none;padding:0 18px 16px;color:var(--muted)}
.faq-item.open .faq-a{display:block}
.faq-item.open .faq-q .chev{transform:rotate(180deg)}
.chev{transition:transform .2s}

/* CTA band */
.cta-band{background:linear-gradient(120deg,var(--navy),var(--navy2));color:#fff;border-radius:var(--radius);padding:44px 40px;display:flex;justify-content:space-between;align-items:center;gap:26px;flex-wrap:wrap}
.cta-band h2{color:#fff;margin-bottom:6px}
.cta-band p{color:#cfe3f5;margin:0;max-width:560px}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap}

/* page hero + forms */
.page-hero{background:var(--navy);color:#fff;padding:52px 0}
.page-hero h1{color:#fff;font-size:2rem}
.page-hero p{color:#cfe3f5;max-width:680px;margin:0}
.page-hero .crumb{font-size:.85rem;color:#9fc6e8;margin-bottom:8px}
.page-hero .crumb a{color:#9fc6e8}
.rich{max-width:820px}
.rich p{margin:0 0 1em}
.rich h2{margin-top:1.4em}
.rich ul{padding-left:22px}
.form-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:26px}
.f-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.f-group{margin-bottom:14px}
.f-group label{display:block;font-weight:600;font-size:.88rem;margin-bottom:5px;color:var(--navy)}
.f-group input,.f-group select,.f-group textarea{width:100%;padding:10px 12px;border:1px solid #c9d8e8;border-radius:9px;font:inherit;font-size:.95rem}
.f-group textarea{resize:vertical}
.hp-field{position:absolute;left:-9999px;top:-9999px;height:1px;width:1px;overflow:hidden}
.info-cards{display:grid;gap:14px}
.info-card{background:var(--bg);border:1px solid var(--line);border-radius:12px;padding:16px 18px}
.info-card b{color:var(--navy);display:block;margin-bottom:2px}
.info-card span{color:var(--muted);font-size:.92rem}

/* products */
.chips{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:20px}
.chip{padding:7px 15px;border-radius:20px;border:1px solid #c9d8e8;color:var(--navy);font-size:.88rem;font-weight:550;background:#fff}
.chip:hover{text-decoration:none;border-color:var(--sky)}
.chip.on{background:var(--navy);color:#fff;border-color:var(--navy)}
.search-bar{display:flex;gap:10px;margin-bottom:22px}
.search-bar input{flex:1;padding:10px 14px;border:1px solid #c9d8e8;border-radius:9px;font:inherit}
.pager{display:flex;gap:6px;justify-content:center;margin-top:26px;flex-wrap:wrap}
.pager a,.pager span{padding:7px 13px;border:1px solid var(--line);border-radius:8px;background:#fff;color:var(--navy);font-size:.9rem}
.pager span.on{background:var(--navy);color:#fff}
.empty-note{text-align:center;color:var(--muted);padding:40px 0}

/* product detail */
.pd-grid{display:grid;grid-template-columns:1.05fr 1fr;gap:38px}
.pd-main-img{border-radius:var(--radius);box-shadow:var(--shadow);width:100%;aspect-ratio:4/3;object-fit:cover;background:var(--bg)}
.pd-thumbs{display:flex;gap:10px;margin-top:10px;flex-wrap:wrap}
.pd-thumbs img{width:76px;height:60px;object-fit:cover;border-radius:8px;cursor:pointer;border:2px solid transparent}
.pd-thumbs img.on{border-color:var(--sky)}
.spec-table{width:100%;border-collapse:collapse;margin:18px 0}
.spec-table td{padding:9px 12px;border-bottom:1px solid var(--line);font-size:.94rem}
.spec-table td:first-child{font-weight:600;color:var(--navy);width:130px;background:var(--bg)}
.pd-cat{color:var(--sky);font-weight:600;font-size:.88rem;text-transform:uppercase;letter-spacing:1px}

/* footer */
.site-footer{background:var(--navy);color:#cfe3f5;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:34px;padding:52px 18px 34px}
.site-footer h4{color:#fff;margin-bottom:14px}
.site-footer ul{list-style:none;margin:0;padding:0}
.site-footer li{margin-bottom:8px;font-size:.93rem}
.site-footer a{color:#cfe3f5}
.foot-brand{display:flex;align-items:center;gap:10px;color:#fff;font-size:1.1rem}
.foot-brand img{height:38px;border-radius:7px}
.foot-text{font-size:.92rem;color:#a9c6de}
.foot-socials{display:flex;gap:8px;margin-top:12px}
.foot-socials a{background:rgba(255,255,255,.12);width:34px;height:34px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:.8rem;font-weight:700}
.foot-socials a:hover{background:var(--sky);text-decoration:none}
.foot-contact{overflow-wrap:break-word}
.foot-bottom{border-top:1px solid rgba(255,255,255,.14);padding:14px 0;font-size:.85rem;color:#9fc6e8}

/* WhatsApp float */
.wa-float{position:fixed;right:18px;bottom:18px;width:58px;height:58px;border-radius:50%;background:var(--green);display:flex;align-items:center;justify-content:center;box-shadow:0 8px 22px rgba(0,0,0,.28);z-index:80}
.wa-float:hover{text-decoration:none;transform:scale(1.05)}

/* responsive */
@media (max-width:1020px){
  .grid.c4,.process-grid{grid-template-columns:repeat(2,1fr)}
  .grid.c3{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr}
  .trust-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:720px){
  .nav-toggle{display:block}
  .main-nav{display:none;position:absolute;top:100%;left:0;right:0;background:#fff;flex-direction:column;align-items:stretch;padding:14px 18px;gap:6px;border-bottom:1px solid var(--line);box-shadow:var(--shadow)}
  .main-nav.open{display:flex}
  .main-nav a{padding:9px 4px}
  .site-header .container{position:relative}
  .hero-copy h1{font-size:1.9rem}
  .hero-slide,.hero-inner{min-height:420px}
  .about-grid,.pd-grid{grid-template-columns:1fr}
  .grid.c2,.grid.c3,.grid.c4,.process-grid{grid-template-columns:1fr}
  .f-row{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .cta-band{padding:30px 22px}
  .tb-cert{display:none}
  .section{padding:44px 0}
}