/* 
  Theme: Nature Inspired
  Font: Montserrat
  Primary Color: #6B8E23 (Olive Drab)
*/

/* --- Basic Reset & Setup --- */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --primary-color: #6B8E23; /* Olive Drab */
  --primary-hover-color: #8FBC8F; /* Dark Sea Green */
  --bg-color: #F5F5DC; /* Beige */
  --surface-color: #FFFFFF;
  --text-color: #36454F; /* Charcoal */
  --text-secondary-color: #696969; /* Dim Gray */
  --border-color: #D3D3D3; /* Light Gray */
}

body {
  font-family: 'Montserrat', sans-serif;
  line-height: 1.7;
  color: var(--text-color);
  background-color: var(--bg-color);
}

/* --- Typography --- */
h1, h2, h3, h4 {
  font-family: 'Montserrat', sans-serif;
  line-height: 1.3;
  font-weight: 700;
  margin-bottom: 1rem;
  color: var(--text-color);
}

h1 {
  font-size: 2.8rem;
  color: var(--primary-color);
}

h2 {
  font-size: 2.2rem;
  border-bottom: 2px solid var(--border-color);
  padding-bottom: 0.5rem;
  margin-top: 2.5rem;
}

h3 {
  font-size: 1.6rem;
  color: var(--primary-color);
  font-weight: 600;
}

p {
  margin-bottom: 1.2rem;
}

a {
  color: var(--primary-color);
  text-decoration: none;
  font-weight: 600;
  transition: color 0.3s ease;
}

a:hover {
  color: var(--primary-hover-color);
  text-decoration: underline;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* --- Header & Navigation --- */
.site-header {
  background-color: var(--surface-color);
  border-bottom: 1px solid var(--border-color);
  padding: 1.5rem 0;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 2px 5px rgba(0,0,0,0.05);
}

.site-header .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.site-title {
  font-size: 2rem;
  font-weight: 700;
}

.site-title a {
  color: var(--text-color);
  text-decoration: none;
  font-weight: 700;
}
.site-title a:hover {
    color: var(--primary-color);
}

.main-nav ul {
  list-style: none;
  display: flex;
  gap: 2rem;
}

.main-nav a {
  font-weight: 600;
  font-size: 1.1rem;
  color: var(--text-secondary-color);
  padding-bottom: 5px;
  position: relative;
  text-decoration: none;
}

.main-nav a::after {
  content: '';
  position: absolute;
  width: 0;
  height: 2px;
  bottom: 0;
  left: 0;
  background-color: var(--primary-color);
  transition: width 0.3s ease;
}

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

.main-nav a:hover,
.main-nav a.active {
  color: var(--text-color);
  text-decoration: none;
}

/* --- Main Content Layout --- */
.main-content {
  padding: 2.5rem 0;
}

.layout-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
}

@media (min-width: 992px) {
  .layout-grid {
    grid-template-columns: 2.5fr