:root {
  --primary: #1f4d2b;
  --accent: #4CAF50;
}

body {
  scroll-behavior: smooth;
}

/* HEADER */
.site-header {
  position: sticky;
  top: 0;
  z-index: 999;
  background: white;
  box-shadow: 0 5px 20px rgba(0,0,0,0.05);
}

.top-bar {
  background: linear-gradient(90deg,#1f4d2b,#2e7d32);
  color: white;
  font-size: 0.85rem;
  padding: 0.5rem 0;
}

.top-flex {
  display: flex;
  justify-content: space-between;
}

.main-nav a {
  position: relative;
}

.main-nav a::after {
  content: "";
  position: absolute;
  width: 0;
  height: 2px;
  bottom: -4px;
  left: 0;
  background: var(--accent);
  transition: 0.3s;
}

.main-nav a:hover::after {
  width: 100%;
}

.cta-nav {
  background: var(--accent);
  border: none;
}

/* HERO */
.hero-section {
  padding: 4rem 0;
  text-align: center;
}

.cta-main {
  background: var(--accent);
  border: none;
  margin-top: 1rem;
}

/* SERVICES */
.service-box {
  padding: 2rem;
  border-radius: 12px;
  background: white;
  box-shadow: 0 10px 35px rgba(0,0,0,0.05);
  transition: 0.3s;
}

.service-box:hover {
  transform: translateY(-6px);
  box-shadow: 0 18px 50px rgba(0,0,0,0.1);
}