/* Basic reset & variables */
:root{
  --bg:#f6fbf8;
  --card:#ffffff;
  --accent:#0b8f6b; /* environmental teal/green */
  --accent-2:#0b5a78; /* deeper teal */
  --muted:#6b7280;
  --radius:12px;
  --container:1100px;
  --gap:1.25rem;
  font-family: 'Poppins', system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', Arial;
}

*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  background:var(--bg);
  color:#0f172a;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  line-height:1.5;
  font-size:16px;
}

/* Layout container */
.container{
  max-width:var(--container);
  margin:0 auto;
  padding:0 1rem;
}

/* Header */
.site-header{
  background:linear-gradient(90deg, rgba(255,255,255,0.9), rgba(255,255,255,0.8));
  position:sticky;
  top:0;
  z-index:40;
  backdrop-filter: blur(6px);
  border-bottom:1px solid rgba(0,0,0,0.04);
}
.header-inner{
  display:flex;
  align-items:center;
  gap:1rem;
  padding:0.6rem 0;
}
.brand{
  display:flex;
  gap:0.75rem;
  align-items:center;
  text-decoration:none;
  color:inherit;
}
.logo{width:56px;height:56px;object-fit:cover;border-radius:10px}
.brand-text h1{margin:0;font-size:1rem;font-weight:700}
.brand-text .tagline{margin:0;font-size:0.8rem;color:var(--muted)}

/* Nav */
.main-nav ul{
  list-style:none;
  margin:0;
  padding:0;
  display:flex;
  gap:0.5rem;
}
.main-nav a{
  display:inline-block;
  padding:0.5rem 0.75rem;
  color:var(--muted);
  text-decoration:none;
  border-radius:8px;
  font-weight:600;
}
.main-nav a:hover{color:var(--accent-2); background:rgba(11,90,120,0.05)}

/* Hamburger */
.hamburger{
  margin-left:auto;
  background:none;border:0;cursor:pointer;display:none;padding:0.5rem;border-radius:8px;
}
.hamburger span{display:block;width:24px;height:3px;background:#0f172a;margin:4px 0;border-radius:3px;transition:all .22s}

/* Hero */
.hero{padding:2.5rem 0}
.hero-inner{
  display:grid;
  grid-template-columns:1fr 420px;
  gap:1.5rem;
  align-items:center;
}
.hero-left h2{font-size:1.6rem;margin:0 0 0.5rem 0}
.hero-left p{color:var(--muted);margin:0 0 1rem 0}
.cta-row{display:flex;gap:0.75rem;margin-bottom:1rem;flex-wrap:wrap}
.btn{
  display:inline-block;padding:0.6rem 0.9rem;border-radius:10px;text-decoration:none;border:1px solid rgba(15,23,42,0.06);background:var(--card);color:inherit;font-weight:600;
}
.btn-primary{background:linear-gradient(90deg,var(--accent),var(--accent-2));color:white;border:0}
.quick-info{list-style:none;padding:0;margin:0;color:var(--muted);font-size:0.95rem;margin-top:0.75rem}
.hero-right img{width:100%;border-radius:12px;object-fit:cover;max-height:360px}

/* Sections */
.section{padding:2rem 0}
.section h3{margin:0 0 1rem 0;font-size:1.1rem}

/* Services grid */
.services-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:1rem;
}
.service-card{
  background:var(--card);
  border-radius:var(--radius);
  overflow:hidden;
  box-shadow:0 6px 18px rgba(11,90,120,0.04);
  display:flex;
  flex-direction:column;
}
.service-card img{width:100%;height:180px;object-fit:cover}
.service-body{padding:0.9rem}
.service-body h4{margin:0 0 0.4rem 0;font-size:1rem}
.service-body p{margin:0;color:var(--muted);font-size:0.95rem}

/* Projects */
.project-grid{display:grid;grid-template-columns:1fr 1fr;gap:1rem}
.project{background:var(--card);border-radius:12px;overflow:hidden;display:flex;gap:1rem}
.project img{width:220px;height:140px;object-fit:cover}
.project-body{padding:0.8rem}

/* Testimonials */
.testimonial{background:linear-gradient(180deg,rgba(11,143,107,0.06),rgba(11,90,120,0.03));padding:1rem;border-radius:12px;color:var(--accent-2)}

/* Contact grid */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:1rem}
.contact-card{background:var(--card);padding:1rem;border-radius:12px;box-shadow:0 6px 18px rgba(11,90,120,0.03)}
.form-card form label{display:block;margin-bottom:0.6rem}
.form-card input,.form-card textarea,.form-card select{
  width:100%;padding:0.55rem;border-radius:8px;border:1px solid rgba(15,23,42,0.06);
  font-family:inherit;font-size:0.95rem;
}

/* Footer */
..site-footer{
    padding:1rem 0;
    border-top:1px solid #D4AF37; /* Changed color to YellowGreen/Gold Green */
    margin-top:2rem
}
.footer-inner{
    display:flex;
    justify-content:space-between;
    align-items:center;
    gap:1rem
}

/* Floating WhatsApp */
.whatsapp-float{
  position:fixed;right:1rem;bottom:1rem;background:linear-gradient(90deg,var(--accent),var(--accent-2));
  color:white;padding:0.85rem 0.9rem;border-radius:999px;display:flex;align-items:center;gap:0.6rem;text-decoration:none;box-shadow:0 10px 30px rgba(11,90,120,0.2);z-index:60;
  transition:transform .18s,opacity .18s;
}
.whatsapp-float .fa-whatsapp{font-size:1.15rem}
.whatsapp-float .wa-phone{display:none;font-weight:700}

/* small screens & responsiveness */
@media (max-width:1000px){
  .hero-inner{grid-template-columns:1fr;gap:1rem}
  .services-grid{grid-template-columns:repeat(2,1fr)}
  .project-grid{grid-template-columns:1fr}
  .contact-grid{grid-template-columns:1fr}
  .main-nav{position:fixed;top:72px;right:0;background:var(--card);width:260px;height:calc(100vh - 72px);transform:translateX(100%);transition:transform .22s;border-left-radius:12px;padding:1rem;box-shadow: -6px 10px 30px rgba(11,90,120,0.06)}
  .main-nav.nav-open{transform:translateX(0)}
  .main-nav ul{flex-direction:column;gap:0.25rem}
  .hamburger{display:block}
  .whatsapp-float .wa-phone{display:none}
}

@media (max-width:600px){
  .services-grid{grid-template-columns:1fr}
  .brand-text h1{font-size:0.95rem}
  .whatsapp-float .wa-phone{display:none}
  .whatsapp-float{padding:0.6rem;border-radius:999px}
}

/* Accessibility: focus states */
a:focus, button:focus, input:focus, select:focus, textarea:focus{
  outline:3px solid rgba(11,143,107,0.12);
  outline-offset:2px;
}

/* hide WA when scrolled down (applied via JS) */
.whatsapp-float.hide{transform:translateY(90px);opacity:0;pointer-events:none}
/* Floating WhatsApp Icon */
.whatsapp-float {
  position: fixed;
  width: auto;
  height: 50px;
  bottom: 20px;
  right: 20px;
  background-color: #25D366;
  color: white;
  border-radius: 50px;
  padding: 10px 18px;
  font-size: 18px;
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  box-shadow: 0 4px 10px rgba(0,0,0,0.25);
  z-index: 9999;
  transition: transform 0.3s ease;
}

.whatsapp-float i {
  font-size: 28px;
}

.whatsapp-float:hover {
  transform: scale(1.06);
}

/* Mobile */
@media (max-width: 480px) {
  .whatsapp-float {
    height: 45px;
    padding: 8px 14px;
    font-size: 16px;
  }
  .whatsapp-float i {
    font-size: 24px;
  }
}