:root{
  --blue:#0E3A5D;
  --green:#1E9D57;
  --yellow:#F4B000;
  --orange:#F07C24;
  --red:#D9463E;
  --purple:#6C4FA1;
  --text:#263238;
  --muted:#6B7A86;
  --bg:#FFFFFF;
  --light:#F4F7FA;
  --accent:#1E9D57;
}

*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font-family: 'Open Sans', system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  color:var(--text);
  background:var(--bg);
  line-height:1.6;
}

/* Layout */
.container{max-width:1200px;margin:auto;padding:0 20px}
.section{padding:64px 0}
.section.light{background:var(--light)}
h1,h2,h3,h4{
  font-family:'Montserrat', Arial, sans-serif;
  margin:0 0 16px;
  color:#0f2233;
}
p{margin:0 0 16px;color:var(--text)}
a{color:var(--blue);text-decoration:none}
a:hover{text-decoration:underline}

/* Header / Nav */
.header{
  position:sticky;top:0;z-index:999;background:#ffffffE6;
  backdrop-filter:saturate(180%) blur(8px); border-bottom:1px solid #E6ECF1;
}
.nav{display:flex;align-items:center;justify-content:space-between;padding:12px 20px}
.brand{display:flex;align-items:center;gap:12px}
.brand img{height:48px;width:auto}
.brand .name{font-family:'Montserrat', sans-serif;font-weight:700;color:var(--blue);font-size:1.1rem;white-space:nowrap}

.menu{display:flex;gap:20px;align-items:center}
.menu a{color:var(--text);font-weight:600}
.menu .cta{background:var(--accent);color:#fff;padding:10px 14px;border-radius:8px}
.menu .cta:hover{filter:brightness(0.95);text-decoration:none}

/* Mobile nav */
.burger{display:none;flex-direction:column;gap:5px;cursor:pointer}
.burger span{width:26px;height:3px;background:var(--text);border-radius:2px}
@media (max-width:920px){
  .menu{display:none;position:absolute;top:64px;right:20px;left:20px;background:#fff;border:1px solid #E6ECF1;border-radius:12px;flex-direction:column;padding:16px}
  .menu.open{display:flex}
  .burger{display:flex}
}

/* Hero */
.hero{
  position:relative;min-height:64vh;display:flex;align-items:center;
  color:#fff;background:
  linear-gradient(120deg, rgba(14,58,93,.85), rgba(30,157,87,.75)),
  url('../images/hero.jpg') center/cover no-repeat;
}
.hero .container{display:grid;gap:16px}
.hero h1{font-size:clamp(28px,4vw,46px);color:#fff}
.hero p{max-width:800px;color:#E8F2F5}
.btn{
  display:inline-block;background:var(--accent);color:#fff;padding:12px 18px;border-radius:10px;font-weight:700
}
.btn.secondary{background:transparent;border:2px solid #fff}
.btn:hover{text-decoration:none;filter:brightness(0.95)}

/* Cards / Services */
.grid{display:grid;gap:24px}
.grid.cols-3{grid-template-columns:repeat(3,1fr)}
@media (max-width:900px){.grid.cols-3{grid-template-columns:1fr}}
.card{
  background:#fff;border:1px solid #E6ECF1;border-radius:14px;padding:20px;
  box-shadow:0 6px 20px rgba(15,34,51,.06)
}
.card h3{margin-bottom:8px}
.badge{display:inline-block;padding:4px 8px;border-radius:999px;font-size:.8rem;color:#fff;margin-bottom:8px}
.badge.blue{background:var(--blue)} .badge.green{background:var(--green)} .badge.orange{background:var(--orange)}

/* Lists */
.list{padding:0;margin:0;list-style:none}
.list li{display:flex;gap:10px;margin:8px 0}
.list li:before{content:"✔";color:var(--green);margin-top:2px}

/* Contact form */
.form{max-width:720px}
.input{width:100%;padding:12px 14px;border:1px solid #D7E0E7;border-radius:10px}
.input:focus{outline:none;border-color:var(--blue);box-shadow:0 0 0 4px rgba(14,58,93,.08)}
.row{display:grid;gap:16px;grid-template-columns:1fr 1fr}
@media (max-width:780px){.row{grid-template-columns:1fr}}
.help{font-size:.9rem;color:var(--muted)}
.alert{padding:12px 14px;border-radius:10px;margin-bottom:16px}
.alert.success{background:#E6F7EE;border:1px solid #BFEBD2;color:#146C43}
.alert.error{background:#FDECEC;border:1px solid #F5C2C2;color:#7A1C1C}

/* Footer */
.footer{background:#0f2233;color:#cfe0ea;padding:32px 0;margin-top:40px}
.footer a{color:#cfe0ea}
.footer .cols{display:grid;gap:20px;grid-template-columns:2fr 1fr 1fr}
@media (max-width:900px){.footer .cols{grid-template-columns:1fr}}
.footer .brandname{font-weight:800;color:#fff}

/* WhatsApp floating button */
.whatsapp-float{
  position:fixed;bottom:18px;right:18px;z-index:9999;width:58px;height:58px;border-radius:50%;
  background:#25D366;display:flex;align-items:center;justify-content:center;
  box-shadow:0 10px 22px rgba(0,0,0,.18), 0 4px 8px rgba(0,0,0,.12)
}
.whatsapp-float:hover{filter:brightness(0.95)}
.whatsapp-float svg{width:30px;height:30px;fill:#fff}

/* Utility */
.kicker{letter-spacing:.12em;text-transform:uppercase;font-weight:800;color:var(--green);font-size:.85rem}
.muted{color:var(--muted)}
.center{text-align:center}