:root{--ink:#12243b;--muted:#66758a;--paper:#fff;--line:#e1eaf2;--primary:#0878c9;--deep:#082d52;--accent:#f59e0b;--shadow:0 18px 48px rgba(8,45,82,.10)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;color:var(--ink);background:#fff;font-family:Inter,system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;font-size:16px;line-height:1.75}a{color:var(--primary);text-decoration:none}a:hover{color:#064d8a}img{max-width:100%;height:auto}h1,h2,h3,h4,h5{font-weight:800;line-height:1.15;letter-spacing:-.025em;color:var(--deep)}.container{max-width:1240px}.topbar{background:var(--deep);color:#dcecff;padding:7px 0;font-size:11px}.navbar{background:rgba(255,255,255,.96)!important;backdrop-filter:blur(16px);box-shadow:0 1px 0 var(--line)}.navbar-brand{font-size:15px;color:var(--deep)}.navbar-brand small{font-size:10px;color:var(--muted);font-weight:600}.brand-mark{width:44px;height:44px;border-radius:14px;display:grid;place-items:center;background:linear-gradient(145deg,#13a3e9,#064d99);color:#fff;font-size:21px;box-shadow:0 10px 22px rgba(8,120,201,.22)}.nav-link{font-size:13px;font-weight:750;color:#20354e!important}.nav-link:hover{color:var(--primary)!important}.btn{font-weight:750;border-radius:12px}.btn-primary{background:linear-gradient(135deg,#128ce0,#0756a4);border:0;box-shadow:0 10px 22px rgba(8,120,201,.18)}.btn-success{background:#079b62;border:0}.hero{position:relative;overflow:hidden;border-radius:28px;padding:58px;background:linear-gradient(110deg,rgba(5,31,58,.97),rgba(5,48,83,.86) 48%,rgba(6,57,96,.22)),url('visuals/hero-bor-air-tanah.webp') center/cover;color:#fff;box-shadow:var(--shadow)}.hero h1{font-size:clamp(2.4rem,5vw,4.6rem);color:#fff;max-width:800px}.hero p{color:#e5f2ff;max-width:700px;font-size:1.08rem}.hero-badge{display:inline-block;padding:7px 13px;border:1px solid rgba(255,255,255,.3);border-radius:30px;background:rgba(255,255,255,.1);font-size:11px;font-weight:800;letter-spacing:.07em}.hero-image{width:100%;height:360px;object-fit:cover;border-radius:22px;border:1px solid rgba(255,255,255,.2)}.hero-points{display:flex;flex-wrap:wrap;gap:18px;color:#fff;font-size:12px;font-weight:700}.hero-points span{display:flex;gap:7px;align-items:center}.hero-points i{color:#ffc44d}.feature-strip{margin-top:-24px;position:relative;z-index:2;background:#fff;border:1px solid var(--line);border-radius:18px;padding:20px;box-shadow:var(--shadow)}.feature{display:flex;gap:12px;align-items:center;font-size:13px;font-weight:750}.feature i{font-size:23px;color:var(--primary)}.eyebrow{text-transform:uppercase;letter-spacing:.14em;font-size:10px;color:var(--primary);font-weight:900}.section-head{display:flex;justify-content:space-between;align-items:end;gap:18px;margin-bottom:24px}.section-head h2{font-size:clamp(1.7rem,3vw,2.5rem);margin:8px 0}.service-card,.article-card,.product-card,.project-card{background:#fff;border:1px solid var(--line);border-radius:18px;overflow:hidden;height:100%;box-shadow:0 9px 28px rgba(8,45,82,.055);transition:.2s}.service-card:hover,.project-card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}.thumb{width:100%;aspect-ratio:16/10;object-fit:cover}.card-body-seo{padding:20px}.card-body-seo h3,.card-body-seo h2{font-size:18px}.service-icon{width:44px;height:44px;display:grid;place-items:center;border-radius:13px;background:#eaf5ff;color:var(--primary);font-size:19px;margin-top:-42px;position:relative;border:4px solid white}.stats{background:#f0f7fd;border:1px solid #e2f0fb;border-radius:20px;padding:25px}.stat-number{font-size:28px;font-weight:900;color:var(--primary)}.premium-box{background:#fff;border:1px solid var(--line);border-radius:18px;padding:24px;box-shadow:0 10px 30px rgba(8,45,82,.05)}.premium-content{font-size:17px}.premium-content h2{margin-top:38px;font-size:clamp(1.5rem,2.3vw,2.1rem)}.premium-content h3{margin-top:26px;font-size:1.3rem}.premium-content p{margin-bottom:1rem}.premium-content li{margin:6px 0}.toc{background:#f3f8fc;border:1px solid #dceaf5;border-radius:16px;padding:20px 25px;margin:24px 0 34px}.toc a{font-weight:700}.cta-panel{padding:32px;border-radius:22px;background:linear-gradient(120deg,#082d52,#0878c9);color:#fff;display:flex;align-items:center;justify-content:space-between;gap:20px}.cta-panel h2{color:#fff}.cta-panel p{color:#d9edff}.page-hero{background:linear-gradient(120deg,#082d52,#0b65a7);padding:44px;border-radius:24px;color:#fff}.page-hero h1{color:#fff}.page-hero p{color:#e0f1ff}.page-hero-image{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:18px}.site-footer{margin-top:70px;background:#061f3a;color:#c4d5e7;padding:58px 0 25px}.site-footer a{display:block;color:#fff;margin:7px 0}.footer-brand{font-size:23px;font-weight:900;color:#fff}.footer-title{color:#ffca66;font-weight:900;margin-bottom:12px}.site-footer hr{border-color:#29435d}.wa-float{position:fixed;right:22px;bottom:22px;width:58px;height:58px;border-radius:50%;background:#0abf72;color:#fff;display:grid;place-items:center;font-size:28px;z-index:1000;box-shadow:0 12px 30px rgba(0,0,0,.2)}.breadcrumb-wrap{font-size:12px;color:var(--muted)}.price{color:var(--primary);font-weight:900}.faq-item{border:1px solid var(--line);border-radius:13px;margin:10px 0;padding:15px 18px}.faq-item summary{font-weight:800;cursor:pointer}.project-card img{width:100%;aspect-ratio:16/10;object-fit:cover}.small-muted{font-size:13px;color:var(--muted)}@media(max-width:991px){.hero{padding:34px 25px}.hero-image{height:280px}.section-head{align-items:start;flex-direction:column}.cta-panel{align-items:flex-start;flex-direction:column}}@media(max-width:575px){body{font-size:15px}.hero{border-radius:20px;padding:28px 20px}.hero h1{font-size:2.35rem}.hero-image{height:230px}.feature-strip{margin-top:16px}.wa-float{right:15px;bottom:15px;width:54px;height:54px}}