:root {
  --banana: #ffe135;
  --banana-dark: #f5d000;
  --leaf: #4caf50;
  --leaf-dark: #388e3c;
  --bg: #fffde7;
  --text: #333;
  --text-light: #666;
  --card-bg: #ffffff;
  --shadow: rgba(0,0,0,0.1);
}

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

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
}

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

nav {
  background: linear-gradient(135deg, var(--banana), var(--banana-dark));
  padding: 1rem 2rem;
  box-shadow: 0 2px 8px var(--shadow);
  position: sticky;
  top: 0;
  z-index: 100;
}

nav .nav-container {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

nav .logo {
  font-size: 1.5rem;
  font-weight: bold;
  color: var(--leaf-dark);
}

nav ul {
  list-style: none;
  display: flex;
  gap: 1.5rem;
}

nav ul li a {
  color: var(--text);
  font-weight: 500;
  padding: 0.5rem 1rem;
  border-radius: 25px;
  transition: background 0.3s;
}

nav ul li a:hover, nav ul li a.active {
  background: rgba(255,255,255,0.4);
  text-decoration: none;
}

.hero {
  background: linear-gradient(135deg, var(--banana) 0%, #fff9c4 100%);
  padding: 4rem 2rem;
  text-align: center;
}

.hero h1 {
  font-size: 3rem;
  color: var(--leaf-dark);
  margin-bottom: 1rem;
}

.hero p {
  font-size: 1.3rem;
  color: var(--text-light);
  max-width: 600px;
  margin: 0 auto 2rem;
}

.btn {
  display: inline-block;
  background: var(--leaf);
  color: white;
  padding: 0.75rem 2rem;
  border-radius: 30px;
  font-weight: bold;
  transition: transform 0.2s, background 0.2s;
  border: none;
  cursor: pointer;
}

.btn:hover {
  background: var(--leaf-dark);
  transform: translateY(-2px);
  text-decoration: none;
}

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 3rem 2rem;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
  margin-top: 2rem;
}

.card {
  background: var(--card-bg);
  border-radius: 16px;
  padding: 2rem;
  box-shadow: 0 4px 12px var(--shadow);
  transition: transform 0.2s;
}

.card:hover { transform: translateY(-5px); }

.card h3 {
  color: var(--leaf-dark);
  margin-bottom: 0.5rem;
}

footer {
  background: var(--text);
  color: white;
  text-align: center;
  padding: 2rem;
  margin-top: 3rem;
}

.page-title {
  text-align: center;
  font-size: 2.5rem;
  color: var(--leaf-dark);
  margin-bottom: 1rem;
}

.page-subtitle {
  text-align: center;
  font-size: 1.1rem;
  color: var(--text-light);
  margin-bottom: 2rem;
}

@media (max-width: 600px) {
  nav ul { gap: 0.5rem; }
  nav ul li a { padding: 0.4rem 0.6rem; font-size: 0.9rem; }
  .hero h1 { font-size: 2rem; }
}