/* ====== Reset & Base ====== */
body {
  margin: 0;
  padding: 0;
  font-family: Arial, sans-serif;
  background-color: #f9f9f9;
  color: #333;
}

/* ====== Navigation Bar ====== */
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background-color: #1b5e20;
  padding: 10px 20px;
}

.brand {
  font-size: 1.5rem;
  font-weight: bold;
  color: #fff;
  text-decoration: none;
}

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

nav a {
  color: #fff;
  text-decoration: none;
  padding: 8px 12px;
  border-radius: 5px;
}

nav a:hover {
  background-color: #388e3c;
}

/* ====== Buttons ====== */
.btn {
  cursor: pointer;
  text-decoration: none;
  padding: 10px 16px;
  border-radius: 5px;
  font-weight: bold;
  display: inline-block;
}

.btn-primary {
  background-color: #1b5e20;
  color: #fff;
  border: none;
}

.btn-primary:hover {
  background-color: #145a14;
}

.btn-ghost {
  background-color: #fff;
  color: #1b5e20;
  border: 2px solid #1b5e20;
}

.btn-ghost:hover {
  background-color: #f4f4f4;
}

/* ====== Responsive Images ====== */
img {
  max-width: 100%;
  height: auto;
  border-radius: 8px;
}

/* ====== Box Model Example ====== */
.section {
  padding: 20px;
  margin: 20px;
  border: 1px solid #ccc;
  background-color: #fff;
}

/* ====== Mobile Navigation ====== */
@media (max-width: 860px) {
  nav ul {
    display: block;
    text-align: center;
  }

  nav li {
    margin: 10px 0;
  }
}