:root {
  --gp-green: #1e7d49;
  --gp-green-dark: #0e5a35;
  --gp-stone: #f2f6f4;
  --gp-white: #ffffff;
  --gp-ink: #0f1a17;
  --radius: 12px;
  --shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
  --max-width: 1120px;
}

body {
  margin: 0;
  font-family: 'Inter', sans-serif;
  background: linear-gradient(to bottom, #f2f6f4, #e9f3ee);
  color: var(--gp-ink);
  line-height: 1.6;
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 20px;
}

header.site {
  background-color: transparent;
  position: relative;
  z-index: 2;
}

.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 0;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
}

.brand-badge {
  width: 36px;
  height: 36px;
  background: radial-gradient(circle at 30% 20%, #83c59d, var(--gp-green));
  border-radius: 8px;
  display: grid;
  place-items: center;
  color: white;
  font-weight: bold;
}

nav a {
  margin-left: 16px;
  font-weight: 600;
  color: var(--gp-green);
  text-decoration: none;
}

nav a:hover {
  text-decoration: underline;
}

.hero {
  position: relative;
  background-image: url('https://images.unsplash.com/photo-1600585154340-be6161a56a0c?auto=format&fit=crop&w=1600&q=80');
  background-size: cover;
  background-position: center;
  color: white;
  padding: 100px 20px;
  text-align: center;
}

.hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(15, 26, 23, 0.6); /* Enhanced overlay for contrast */
  z-index: 1;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 700px;
  margin: 0 auto;
}

.hero h1 {
  font-size: 2.8rem;
  margin-bottom: 10px;
}

.hero p {
  font-size: 1.2rem;
  margin-bottom: 20px;
}

.btn {
  display: inline-block;
  background: var(--gp-green);
  color: white;
  padding: 12px 20px;
  border-radius: var(--radius);
  font-weight: 600;
  text-decoration: none;
  box-shadow: var(--shadow);
  transition: background 0.2s ease;
}

.btn:hover {
  background: var(--gp-green-dark);
}

section {
  padding: 60px 0;
}

h2 {
  font-size: 2rem;
  margin-bottom: 20px;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
}

.card {
  background: white;
  border-radius: var(--radius);
  padding: 20px;
  box-shadow: var(--shadow);
  transition: transform 0.2s ease;
}

.card:hover {
  transform: translateY(-4px);
}

.card h3 {
  margin-top: 0;
}

footer {
  background: var(--gp-green-dark);
  color: white;
  padding: 30px 20px;
  text-align: center;
}

footer a {
  color: #bfe6cf;
  text-decoration: none;
}

footer a:hover {
  text-decoration: underline;
}

@media (max-width: 600px) {
  .hero h1 {
    font-size: 2rem;
  }

  .hero p {
    font-size: 1rem;
  }
}