* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  line-height: 1.6;
  color: #1f2a1f;
  background: #f8fbf7;
}

a {
  color: #0f5f2e;
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.top-bar {
  background: #0c3d1f;
  color: #ffffff;
  font-size: 0.95rem;
  padding: 0.5rem 1rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.social-links a {
  color: #ffffff;
  margin-left: 0.75rem;
  font-weight: 600;
}

header {
  background: #ffffff;
  border-bottom: 1px solid #d8e3d5;
}

.container {
  width: min(1100px, 92%);
  margin: 0 auto;
}

.brand-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 0;
}

.brand {
  font-size: 1.4rem;
  font-weight: 700;
  color: #0c3d1f;
}

nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  gap: 1rem;
}

nav a {
  font-weight: 600;
}

.hero {
  background: linear-gradient(rgba(7, 37, 17, 0.75), rgba(7, 37, 17, 0.75)),
    url("images/hero-tree.svg") center/cover no-repeat;
  color: #ffffff;
  padding: 5rem 0;
}

.hero h1 {
  margin-top: 0;
  font-size: 2rem;
}

.btn {
  display: inline-block;
  background: #1f8f45;
  color: #ffffff;
  padding: 0.7rem 1rem;
  border-radius: 4px;
  margin-top: 0.8rem;
  font-weight: 700;
}

.section {
  padding: 2.5rem 0;
}

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1rem;
}

.card {
  background: #ffffff;
  border: 1px solid #d8e3d5;
  border-radius: 8px;
  overflow: hidden;
}

.card img {
  width: 100%;
  height: 150px;
  object-fit: cover;
}

.card-content {
  padding: 1rem;
}

.project-list {
  background: #ffffff;
  border: 1px solid #d8e3d5;
  border-radius: 8px;
  padding: 1rem 1.25rem;
}

form {
  background: #ffffff;
  border: 1px solid #d8e3d5;
  border-radius: 8px;
  padding: 1rem;
}

label {
  font-weight: 600;
}

input,
textarea {
  width: 100%;
  margin-top: 0.35rem;
  margin-bottom: 1rem;
  border: 1px solid #b8c9b3;
  border-radius: 4px;
  padding: 0.65rem;
  font: inherit;
}

button {
  background: #0f5f2e;
  color: #ffffff;
  border: none;
  border-radius: 4px;
  padding: 0.7rem 1rem;
  font-weight: 700;
  cursor: pointer;
}

footer {
  background: #0c3d1f;
  color: #ffffff;
  padding: 1.5rem 0;
  margin-top: 2rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.75rem;
}

@media (max-width: 760px) {
  .brand-row {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.6rem;
  }

  nav ul {
    flex-wrap: wrap;
  }
}