:root {
  --primary: #1a6b54;
  --primary-dark: #0d4a37;
  --accent: #f0a500;
  --text: #2d3436;
  --text-light: #636e72;
  --bg: #ffffff;
  --bg-soft: #f8f9fa;
  --border: #e0e0e0;
  --radius: 10px;
  --shadow: 0 2px 12px rgba(0,0,0,0.08);
  --max-width: 1100px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

body {
  font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.7;
}

a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }

/* Header */
header {
  background: var(--primary);
  color: #fff;
  padding: 0;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 2px 8px rgba(0,0,0,0.15);
}
.nav {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px;
  height: 64px;
}
.nav .logo {
  font-size: 1.3rem;
  font-weight: 700;
  letter-spacing: -0.5px;
  color: #fff;
}
.nav .logo span { color: var(--accent); }
.nav ul {
  list-style: none;
  display: flex;
  gap: 28px;
}
.nav a {
  color: rgba(255,255,255,0.9);
  font-size: 0.95rem;
  font-weight: 500;
}
.nav a:hover { color: var(--accent); text-decoration: none; }
.nav-toggle { display: none; }

/* Hero */
.hero {
  background: linear-gradient(135deg, var(--primary-dark), var(--primary));
  color: #fff;
  text-align: center;
  padding: 80px 24px;
}
.hero h1 {
  font-size: 2.6rem;
  margin-bottom: 16px;
  line-height: 1.2;
}
.hero p {
  font-size: 1.2rem;
  max-width: 600px;
  margin: 0 auto 28px;
  opacity: 0.95;
}
.btn {
  display: inline-block;
  background: var(--accent);
  color: #1a1a1a;
  padding: 12px 32px;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 1rem;
  border: none;
  cursor: pointer;
  transition: transform 0.15s, box-shadow 0.15s;
}
.btn:hover {
  text-decoration: none;
  transform: translateY(-2px);
  box-shadow: 0 4px 16px rgba(0,0,0,0.2);
}

/* Sections */
.section {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 64px 24px;
}
.section h2 {
  font-size: 2rem;
  color: var(--primary-dark);
  margin-bottom: 24px;
}
.section h3 {
  font-size: 1.3rem;
  color: var(--primary);
  margin-bottom: 12px;
}

/* Mission cards */
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
  margin-top: 32px;
}
.card {
  background: var(--bg-soft);
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
}
.card .icon {
  font-size: 2rem;
  margin-bottom: 12px;
}

/* About */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 48px;
  align-items: start;
}
.about-photo {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  border-radius: var(--radius);
  height: 280px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255,255,255,0.3);
  font-size: 4rem;
}

/* Blog */
.blog-list {
  display: flex;
  flex-direction: column;
  gap: 24px;
  margin-top: 32px;
}
.blog-post-card {
  background: var(--bg-soft);
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
  transansform 0.15s;
}
.blog-post-card:hover { transform: translateY(-3px); }
.blog-post-card .date {
  color: var(--text-light);
  font-size: 0.85rem;
  margin-bottom: 8px;
}
.blog-post-card h3 { margin-bottom: 8px; }
.blog-post-card p { color: var(--text-light); }
.blog-post-card .read-more { font-weight: 600; margin-top: 12px; display: inline-block; }

/* Article */
.article {
  max-width: 760px;
  margin: 0 auto;
  padding: 64px 24px;
}
.article .meta {
  color: var(--text-light);
  font-size: 0.9rem;
  margin-bottom: 24px;
}
.article h1 {
  font-size: 2.2rem;
  color: var(--primary-dark);
  margin-bottom: 16px;
}
.article p { margin-bottom: 18px; }
.article .back-link { margin-bottom: 32px; display: inline-block; }

/* Footer */
footer {
  background: var(--primary-dark);
  color: rgba(255,255,255,0.8);
  text-align: center;
  padding: 40px 24px;
  margin-top: 40px;
}
footer a { color: var(--accent); }

/* Responsive */
@media (max-width: 768px) {
  .nav ul { display: none; }
  .nav-toggle {
    display: block;
    background: none;
    border: none;
    color: #fff;
    font-size: 1.5rem;
    cursor: pointer;
  }
  .nav-toggle.active + ul {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background: var(--primary-dark);
    padding: 20px;
    gap: 16px;
  }
  .hero h1 { font-size: 1.8rem; }
  .about-grid { grid-template-columns: 1fr; }
  .section { padding: 40px 20px; }
}