:root{--navy:#062f73;--blue:#1178ee;--blue2:#0b55b8;--green:#1eb653;--orange:#ff8700;--text:#172033;--muted:#617089;--soft:#f4f8fc;--border:#e3eaf2;--shadow:0 14px 40px rgba(12,35,72,.10);--radius:14px}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Inter,Segoe UI,Arial,sans-serif;color:var(--text);background:#fff}a{color:inherit;text-decoration:none}.container{width:min(1200px,92%);margin:auto}.topbar{background:var(--navy);color:#fff;font-size:13px}.topbar-inner{display:flex;justify-content:space-between;gap:20px;padding:10px 0}.site-header{position:sticky;top:0;z-index:50;background:#fff;border-bottom:1px solid var(--border);box-shadow:0 3px 16px rgba(0,0,0,.05)}.nav{display:flex;align-items:center;min-height:78px;gap:24px}.brand img{width:220px;max-width:42vw;height:auto;display:block}.main-menu{display:flex;align-items:center;gap:19px;margin-left:auto}.main-menu a{font-weight:600;font-size:14px;color:#273248;white-space:nowrap}.main-menu a:hover{color:var(--blue)}.nav-actions{display:flex;align-items:center;gap:10px}.icon-btn,.cart-btn,.wa-btn{display:inline-flex;align-items:center;justify-content:center;border:1px solid var(--border);background:#fff;border-radius:10px;min-height:42px;padding:0 12px}.cart-btn{position:relative}.cart-btn span{position:absolute;right:-5px;top:-6px;background:var(--orange);color:#fff;border-radius:99px;min-width:20px;height:20px;display:grid;place-items:center;font-size:11px;font-weight:800}.wa-btn{background:#16b86a;color:#fff;border-color:#16b86a;font-weight:700}.nav-toggle{display:none;border:0;background:transparent;font-size:28px}.hero{position:relative;color:#fff;overflow:hidden;background:linear-gradient(90deg,#032f71 0%,#0c55a8 50%,#eff7ff 100%);min-height:525px}.hero-overlay{position:absolute;inset:0;background:linear-gradient(90deg,rgba(2,26,63,.68),rgba(5,62,128,.15) 68%,rgba(255,255,255,.02))}.hero-grid{position:relative;min-height:525px;display:grid;grid-template-columns:1.02fr .98fr;align-items:center}.hero-copy{padding:65px 0}.eyebrow{font-size:14px;letter-spacing:2px;font-weight:800;margin-bottom:14px;opacity:.95}.eyebrow.blue{color:var(--blue2)}.hero h1{font-size:clamp(42px,5.2vw,68px);line-height:1.03;margin:0 0 18px;font-weight:800;max-width:720px}.hero p{font-size:18px;line-height:1.6;max-width:700px;margin:0 0 25px}.trust-row{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;max-width:700px}.trust-row span{font-weight:800;font-size:14px}.trust-row small{font-weight:500;opacity:.85}.cta-row{display:flex;gap:14px;margin-top:30px}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:9px;border:1px solid transparent;padding:13px 19px;font-weight:800;cursor:pointer;font-size:14px}.btn-primary{background:var(--blue);color:#fff}.btn-primary:hover{background:#0b6bd3}.btn-light{background:#fff;color:#16335d;border-color:#dce6f3}.btn-outline{background:#fff;color:var(--blue2);border-color:#aac7eb}.btn-whatsapp{background:#18bd6b;color:#fff}.btn-lg{padding:15px 23px}.btn-block{width:100%}.hero-art{position:relative;display:flex;align-items:flex-end;justify-content:flex-end;min-height:520px}.hero-art>img{width:min(620px,100%);position:relative;z-index:2;filter:drop-shadow(0 16px 24px rgba(0,0,0,.17))}.tank-art{position:absolute;right:-2%;top:28px;width:48%;z-index:3}.tank-art img{width:100%}.stats{margin-top:-30px;position:relative;z-index:8;background:#fff;border:1px solid var(--border);border-radius:16px;box-shadow:var(--shadow);display:grid;grid-template-columns:repeat(4,1fr);padding:24px 20px}.stats div{display:grid;place-items:center;text-align:center;border-right:1px solid var(--border)}.stats div:last-child{border-right:0}.stats strong{font-size:30px;color:var(--navy)}.stats span{font-size:13px;color:var(--muted);margin-top:3px}.section{padding:72px 0}.soft{background:var(--soft)}.section-head{text-align:center;margin-bottom:34px}.section-head h2{margin:0;font-size:36px;line-height:1.15}.category-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:18px}.category-card{border:1px solid var(--border);border-radius:14px;background:#fff;box-shadow:0 8px 22px rgba(15,35,65,.06);padding:22px;text-align:center;transition:.25s}.category-card:hover{transform:translateY(-5px);box-shadow:var(--shadow)}.cat-icon{width:76px;height:76px;border-radius:50%;display:grid;place-items:center;margin:0 auto 16px;background:#edf6ff;color:var(--blue);font-size:34px}.category-card h3{font-size:17px;margin:0 0 10px}.category-card span{font-size:12px;font-weight:800;color:var(--blue)}.product-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}.product-card{border:1px solid var(--border);border-radius:14px;background:#fff;overflow:hidden;box-shadow:0 8px 22px rgba(15,35,65,.05)}.product-card img{width:100%;aspect-ratio:1/1;object-fit:contain;background:linear-gradient(180deg,#fff,#f7fbff);display:block;padding:15px}.product-body{padding:17px}.product-body h3{font-size:16px;line-height:1.35;margin:7px 0 10px}.product-body p{color:var(--muted);font-size:13px;line-height:1.5}.rating{font-size:12px;color:#f2a100;font-weight:800}.rating span{color:var(--muted);font-weight:600}.price{font-size:20px;color:var(--navy);font-weight:900;margin:13px 0}.price del{font-size:13px;color:#94a0b2;margin-left:8px;font-weight:600}.small-label{font-size:11px;letter-spacing:1px;text-transform:uppercase;color:#70809a;font-weight:800}.why{background:linear-gradient(135deg,#052f70,#0b55b8);color:#fff;padding:70px 0}.section-head.light h2{color:#fff}.why-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:14px}.why-grid>div{padding:22px 14px;text-align:center;border:1px solid rgba(255,255,255,.18);background:rgba(255,255,255,.06);border-radius:14px}.why-grid strong{display:block;margin-top:10px}.why-grid span{display:block;opacity:.8;font-size:12px;line-height:1.4;margin-top:6px}.service-strip{display:grid;grid-template-columns:repeat(4,1fr);gap:15px;align-items:stretch}.service-strip>div{padding:22px;border:1px solid var(--border);border-radius:14px;background:#fff;box-shadow:0 8px 20px rgba(15,35,65,.04)}.service-strip h3{margin:0 0 8px;font-size:17px}.service-strip p{margin:0;color:var(--muted);font-size:13px;line-height:1.5}.review-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.review{background:#fff;border:1px solid var(--border);border-radius:14px;padding:25px;box-shadow:0 8px 20px rgba(15,35,65,.04)}.review .quote{font-size:44px;color:var(--blue);font-weight:900;line-height:1}.review p{line-height:1.6;color:#45536b}.review span{display:block;color:#8491a3;font-size:12px;margin-top:3px}.cta-band{background:var(--navy);color:#fff;padding:34px 0}.cta-band .container{display:flex;align-items:center;justify-content:space-between;gap:20px}.cta-band h2{margin:0 0 7px}.cta-band p{margin:0;opacity:.8}.footer{background:#052b67;color:#dce7f7;padding-top:55px}.footer-grid{display:grid;grid-template-columns:1.35fr .8fr .9fr 1.2fr;gap:35px;padding-bottom:45px}.footer-logo{width:190px;max-width:100%;background:#fff;border-radius:10px;padding:5px;margin-bottom:13px}.footer p{font-size:13px;line-height:1.6;color:#b8c8de}.footer h4{color:#fff;margin:0 0 15px}.footer a{display:block;font-size:13px;color:#c6d5e8;margin:10px 0}.footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding:17px 0;font-size:12px;color:#a9bdd8}.page-hero{background:linear-gradient(90deg,#edf6ff,#fff);padding:70px 0 55px}.page-hero h1{font-size:48px;max-width:820px;margin:0 0 14px}.page-hero p{max-width:740px;color:var(--muted);font-size:18px;line-height:1.6}.product-grid.wide{grid-template-columns:repeat(4,1fr)}.product-single{display:grid;grid-template-columns:1fr 1fr;gap:55px;align-items:start}.product-image-large{background:#f7fbff;border:1px solid var(--border);border-radius:18px;padding:30px}.product-image-large img{width:100%;aspect-ratio:1/1;object-fit:contain}.product-info h1{font-size:44px;line-height:1.12;margin:10px 0}.lead{font-size:18px;line-height:1.6;color:#55647c}.spec-card{display:grid;grid-template-columns:repeat(3,1fr);border:1px solid var(--border);border-radius:12px;margin:22px 0;overflow:hidden}.spec-card div{padding:15px;border-right:1px solid var(--border)}.spec-card div:last-child{border-right:0}.spec-card span{display:block;font-size:11px;text-transform:uppercase;color:#8492a6}.spec-card strong{display:block;margin-top:5px}.buy-form{display:flex;align-items:center;flex-wrap:wrap;gap:10px}.buy-form label{display:flex;align-items:center;gap:8px}.buy-form input{width:85px;padding:14px;border:1px solid var(--border);border-radius:9px}.prose{margin-top:28px;line-height:1.8;color:#4a5870}.cart-layout{display:grid;grid-template-columns:1.6fr .7fr;gap:25px}.card{border:1px solid var(--border);border-radius:16px;background:#fff;box-shadow:0 8px 24px rgba(14,35,69,.05);padding:24px}.cart-list{margin-bottom:18px}.cart-item{display:grid;grid-template-columns:90px 1fr 90px 120px;gap:15px;align-items:center;padding:15px 0;border-bottom:1px solid var(--border)}.cart-item img{width:90px;height:90px;object-fit:contain;background:#f7fbff;border-radius:10px}.cart-item h3{margin:0 0 5px;font-size:16px}.cart-item p{margin:0;color:var(--muted)}.cart-item input,.form-card input,.form-card textarea,.form-card select,.search-form input{width:100%;border:1px solid #d9e2ee;border-radius:9px;padding:13px;font:inherit;outline:0;background:#fff}.cart-item input:focus,.form-card input:focus,.form-card textarea:focus,.form-card select:focus,.search-form input:focus{border-color:#7bb2f4;box-shadow:0 0 0 3px rgba(17,120,238,.1)}.summary h2,.form-card h2{font-size:22px;margin:0 0 18px}.summary>div{display:flex;justify-content:space-between;gap:15px;padding:10px 0;border-bottom:1px solid var(--border);font-size:14px}.summary .total{font-size:18px;font-weight:900;border-bottom:0;padding-top:16px}.checkout-grid{display:grid;grid-template-columns:1.45fr .7fr;gap:25px}.form-card label{display:block;font-weight:700;font-size:13px;margin-bottom:15px}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:15px}.payment-options{display:grid;gap:10px}.payment-option{display:flex!important;gap:12px;align-items:flex-start;border:1px solid var(--border);border-radius:12px;padding:14px!important}.payment-option span{display:grid;gap:4px}.payment-option small{color:var(--muted);font-weight:500}.upi-box{margin:15px 0;padding:15px;background:#f2f7fd;border-radius:10px}.upi-box label{margin-top:12px}.contact-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:30px}.contact-card{border:1px solid var(--border);border-radius:14px;padding:19px;margin-bottom:15px}.contact-card strong{display:block;margin-bottom:6px}.contact-card p{margin:0;color:var(--muted);line-height:1.5}.search-form{display:flex;max-width:700px;gap:10px;margin-top:25px}.search-form input{flex:1}.order-success{text-align:center;max-width:850px}.success-icon{width:84px;height:84px;margin:0 auto 18px;border-radius:50%;display:grid;place-items:center;background:#e8f8ef;color:#18ae5d;font-size:42px;font-weight:900}.order-box{margin:28px 0;text-align:left}.order-head,.order-line,.total{display:flex;justify-content:space-between;padding:13px 0;border-bottom:1px solid var(--border)}.setup-page{min-height:100vh;display:grid;place-items:center;background:linear-gradient(135deg,#edf6ff,#fff)}.setup-card{width:min(600px,92%);text-align:center;padding:45px;border-radius:20px;background:#fff;box-shadow:var(--shadow)}.setup-logo{width:250px;max-width:85%}.setup-note{background:#f4f8fc;border-radius:12px;padding:18px;text-align:left;margin:20px 0;line-height:1.7}.setup-error{padding:10vh 4vw}.flash-wrap{padding-top:12px}.flash{border-radius:10px;padding:13px 15px;font-weight:700}.flash.success{background:#eaf8ef;color:#146f3e}.flash.error{background:#fff0f0;color:#a72e2e}.empty{text-align:center;padding:55px 25px}.service-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.service-cards>div{padding:26px;border:1px solid var(--border);border-radius:15px;background:#fff;box-shadow:0 8px 22px rgba(15,35,65,.04)}
@media(max-width:1100px){.main-menu{gap:12px}.main-menu a{font-size:12px}.wa-btn{display:none}.category-grid{grid-template-columns:repeat(3,1fr)}.product-grid,.product-grid.wide{grid-template-columns:repeat(3,1fr)}.why-grid{grid-template-columns:repeat(3,1fr)}}
@media(max-width:850px){.topbar-inner{display:none}.nav{min-height:68px}.nav-toggle{display:block;order:2;margin-left:auto}.nav-actions{order:3}.main-menu{display:none;position:absolute;left:0;right:0;top:68px;background:#fff;border-bottom:1px solid var(--border);box-shadow:0 16px 30px rgba(0,0,0,.10);padding:15px 4%;flex-direction:column;align-items:stretch;gap:0;max-height:75vh;overflow:auto}.main-menu.open{display:flex}.main-menu a{padding:13px 4px;border-bottom:1px solid #edf1f5;font-size:14px}.brand{order:1}.brand img{width:190px}.hero-grid{grid-template-columns:1fr;min-height:auto}.hero-copy{padding:48px 0 10px}.hero-art{min-height:300px;justify-content:center}.tank-art{right:0;top:10px;width:42%}.stats{grid-template-columns:repeat(2,1fr);margin-top:-10px}.stats div:nth-child(2){border-right:0}.stats div:nth-child(-n+2){border-bottom:1px solid var(--border)}.category-grid,.product-grid,.product-grid.wide{grid-template-columns:repeat(2,1fr)}.service-strip,.review-grid,.service-cards{grid-template-columns:1fr}.product-single,.cart-layout,.checkout-grid,.contact-grid{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr 1fr}.cta-band .container{flex-direction:column;align-items:flex-start}.page-hero h1{font-size:38px}.product-info h1{font-size:36px}}
@media(max-width:520px){.nav{gap:8px}.nav-actions .icon-btn{display:none}.brand img{width:155px}.nav-toggle{font-size:26px}.hero h1{font-size:38px}.hero p{font-size:16px}.trust-row{grid-template-columns:1fr 1fr;gap:12px}.cta-row{flex-direction:column}.cta-row .btn{width:100%}.hero-art{min-height:250px}.stats{padding:14px 8px}.stats strong{font-size:24px}.stats span{font-size:11px}.category-grid,.product-grid,.product-grid.wide{grid-template-columns:1fr}.section{padding:52px 0}.section-head h2{font-size:30px}.why-grid{grid-template-columns:1fr 1fr}.footer-grid{grid-template-columns:1fr}.cart-item{grid-template-columns:60px 1fr}.cart-item img{width:60px;height:60px}.cart-item input,.cart-item>div:last-child{grid-column:2}.form-grid{grid-template-columns:1fr}.search-form{flex-direction:column}.page-hero{padding:50px 0 42px}.page-hero h1{font-size:33px}}

/* v1.3 CMS + responsive menu upgrades */
.brand{display:flex;align-items:center;gap:12px;min-width:0}.brand img{max-height:58px;object-fit:contain}.brand-title{font-weight:800;color:var(--navy);font-size:16px;white-space:nowrap}.main-menu{margin-left:auto}.main-menu>ul{display:flex;align-items:center;gap:8px;list-style:none;margin:0;padding:0}.main-menu li{position:relative;list-style:none}.main-menu li>a{display:flex;align-items:center;gap:5px;padding:11px 10px;border-radius:8px}.main-menu li>a:hover{background:#f2f7fd}.menu-chevron{font-size:14px;opacity:.65}.submenu{position:absolute;left:0;top:calc(100% + 5px);min-width:230px;background:#fff;border:1px solid var(--border);border-radius:12px;box-shadow:var(--shadow);padding:8px;display:none;z-index:100}.main-menu li:hover>.submenu{display:block}.submenu li>a{width:100%;padding:11px 12px}.submenu .submenu{left:100%;top:0}.content-card{background:#fff;border:1px solid var(--border);border-radius:16px;box-shadow:0 8px 22px rgba(15,35,65,.05);padding:30px}.content-page{max-width:900px}.content-card h2{margin-top:0;margin-bottom:14px;color:var(--navy)}.content-card p,.content-card li{color:#46546b;line-height:1.75}.feature-list{padding-left:20px}.blog-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}.blog-card{overflow:hidden;border:1px solid var(--border);border-radius:16px;background:#fff;box-shadow:0 8px 22px rgba(15,35,65,.05)}.blog-card img,.blog-placeholder{width:100%;aspect-ratio:16/10;object-fit:cover;background:#edf6ff;display:grid;place-items:center;color:var(--blue);font-size:44px;font-weight:900}.blog-body{padding:20px}.blog-body h2{font-size:21px;line-height:1.25;margin:8px 0 10px;color:var(--navy)}.blog-body p{color:var(--muted);line-height:1.6}.post-cover{width:100%;max-height:520px;object-fit:cover;border-radius:12px;margin-bottom:24px}.post-content{font-size:17px;line-height:1.8}.post-content img{max-width:100%;height:auto}.post-content h2,.post-content h3{color:var(--navy)}
.form-card{background:#fff;border:1px solid var(--border);border-radius:16px;box-shadow:var(--shadow);padding:25px}.form-card label{display:block;font-weight:700;font-size:13px;margin-bottom:15px}.form-card input,.form-card textarea,.form-card select{width:100%;margin-top:6px;border:1px solid #dbe5ef;border-radius:10px;padding:12px 13px;font:inherit;color:var(--text);outline:none}.form-card input:focus,.form-card textarea:focus,.form-card select:focus{border-color:var(--blue);box-shadow:0 0 0 3px rgba(17,120,238,.10)}
@media(max-width:1100px){.brand-title{display:none}.main-menu>ul{gap:2px}.main-menu li>a{font-size:12px;padding:10px 7px}}
@media(max-width:850px){.main-menu{top:68px}.main-menu>ul{display:flex;flex-direction:column;align-items:stretch;gap:0}.main-menu li>a{padding:13px 10px;border-bottom:1px solid #edf1f5}.submenu{position:static;display:none;box-shadow:none;border:0;border-radius:0;padding:0 0 0 14px;min-width:0;background:#f8fbfe}.main-menu li.expanded>.submenu{display:block}.main-menu li.has-children>a{background:#f7fbff}.blog-grid{grid-template-columns:1fr 1fr}.brand-title{display:none}}
@media(max-width:520px){.blog-grid{grid-template-columns:1fr}.content-card,.form-card{padding:20px}.post-content{font-size:16px}}