:root{
  --primary:#4bd1d6; --secondary:#0f5995; --text:#333333; --bg:#ffffff;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;color:var(--text);background:var(--bg);line-height:1.6}
a{color:var(--secondary);text-decoration:none}
img{max-width:100%;display:block}
.container{width:min(1100px,92%);margin-inline:auto}
/* Header */
header{position:sticky;top:0;z-index:50;background:#fff;border-bottom:1px solid #eef2f4}
.nav{display:flex;align-items:center;justify-content:space-between;padding:.8rem 0}
.brand{display:flex;align-items:center;gap:.6rem}
.brand img{width:42px;height:42px;object-fit:contain}
.brand .title{font-weight:800;color:var(--secondary)}
.menu{display:flex;gap:1rem;align-items:center}
.menu a{padding:.5rem .6rem;border-radius:.6rem}
.menu a:hover{background:#f3fbfc}
.cta{display:flex;gap:.6rem;align-items:center;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;gap:.5rem;padding:.7rem 1rem;border-radius:.8rem;font-weight:700;border:2px solid transparent}
.btn-primary{background:var(--primary);color:#003238}
.btn-primary:hover{filter:brightness(0.95)}
.btn-outline{border-color:var(--secondary);color:var(--secondary)}
.btn-outline:hover{background:#f2f7ff}
.hamburger{display:none;flex-direction:column;gap:4px;background:transparent;border:none}
.hamburger span{width:26px;height:2px;background:#0b1720}
@media (max-width:860px){
  .menu{display:none}
  .hamburger{display:flex}
  .mobile-menu{display:none;flex-direction:column;padding:0 0 1rem}
  .mobile-menu a{padding:.8rem;border-top:1px solid #eef2f4}
  .mobile-menu .cta{padding:1rem;gap:.8rem}
}
/* Hero */
.hero{padding:3.5rem 0 2.5rem;background:linear-gradient(180deg,#f7feff,transparent)}
.hero-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:2rem;align-items:center}
.hero h1{font-size:clamp(1.6rem,4vw,2.6rem);line-height:1.2;color:#0b2a45;margin:0 0 .8rem}
.hero p{margin:0 0 1.2rem}
.badges{display:flex;gap:.6rem;flex-wrap:wrap;margin:.8rem 0 1.2rem}
.badge{background:#eafcff;color:#045d62;border:1px solid #b6f1f3;padding:.35rem .6rem;border-radius:999px;font-weight:700;font-size:.85rem}
.hero .cta{gap:.8rem;flex-wrap:wrap}
@media (max-width:860px){.hero-grid{grid-template-columns:1fr}}
/* Sections */
section{padding:2.5rem 0}
h2.section-title{font-size:clamp(1.3rem,3vw,2rem);margin:0 0 1rem;color:#0b2a45}
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:1rem}
.card{border:1px solid #eef2f4;border-radius:1rem;padding:1rem;background:#fff;box-shadow:0 8px 30px rgba(2,37,59,.03)}
.card h3{margin:.2rem 0 .5rem;color:#0f5995}
@media (max-width:900px){.cards{grid-template-columns:1fr}}
/* Units */
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:1rem}
@media (max-width:1100px){.grid-4{grid-template-columns:repeat(2,1fr)}}
@media (max-width:600px){.grid-4{grid-template-columns:1fr}}
.unit{border:1px solid #eef2f4;border-radius:1rem;overflow:hidden}
.unit .box{padding:.9rem}
/* FAQ */
details{border:1px solid #eef2f4;border-radius:.8rem;padding:1rem;background:#fff}
details+details{margin-top:.8rem}
details summary{font-weight:700;color:#0b2a45;cursor:pointer}
/* Footer */
footer{background:#061b30;color:#dfe9f2;margin-top:2rem}
footer .container{display:grid;grid-template-columns:2fr 1fr 1fr;gap:1rem;padding:2rem 0}
footer a{color:#dfe9f2}
.subfooter{border-top:1px solid rgba(255,255,255,.08);padding:1rem 0;color:#a6b6c6}
@media (max-width:860px){footer .container{grid-template-columns:1fr}}
/* Floating WhatsApp */
.wa-float{position:fixed;right:16px;bottom:16px;z-index:60}
.wa-float a{display:flex;align-items:center;gap:.6rem;background:#25D366;color:#0d2b1b;padding:.8rem 1rem;border-radius:999px;font-weight:800;box-shadow:0 12px 30px rgba(0,0,0,.15)}
/* Lightbox */
.lightbox-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:.5rem}
@media (max-width:900px){.lightbox-grid{grid-template-columns:repeat(2,1fr)}}
.thumb{aspect-ratio:4/3;object-fit:cover;border-radius:.6rem;border:1px solid #eef2f4;cursor:pointer}
.lb-backdrop{position:fixed;inset:0;background:rgba(0,0,0,.7);display:none;align-items:center;justify-content:center;padding:1rem;z-index:80}
.lb-backdrop.active{display:flex}
.lb-img{max-width:min(100%,1100px);max-height:88vh;border-radius:.6rem}
.lb-close{position:absolute;top:16px;right:16px;background:#fff;border:none;border-radius:.6rem;padding:.5rem .7rem;font-weight:800;cursor:pointer}
/* Utils */
.muted{color:#6b7a8a}
.pill{background:#f0f6ff;color:#0f3d6b;border:1px solid #d8e7ff;padding:.2rem .5rem;border-radius:999px;font-size:.8rem}