:root {
  --bg: #f7f9fc;
  --card-bg: #ffffff;
  --nav-bg: #ffffff;
  --text: #1a1a1a;
  --subtext: #555;
  --primary: #2a62ff;
  --secondary: #10b981;
  --accent: #0369a1;
  --radius: 12px;
  --shadow: 0 4px 8px rgba(0, 0, 0, 0.05);
}

body {
  margin: 0;
  font-family: 'Segoe UI', sans-serif;
  background-color: var(--bg);
  color: var(--text);
}

nav {
  background-color: var(--nav-bg);
  box-shadow: var(--shadow);
  padding: 16px 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

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

nav ul {
  list-style: none;
  display: flex;
  gap: 20px;
  margin: 0;
  padding: 0;
}

nav ul li {
  cursor: pointer;
  font-weight: 500;
  color: var(--text);
  transition: color 0.3s;
}

nav ul li:hover {
  color: var(--primary);
}

.container {
  max-width: 1000px;
  margin: 40px auto;
  padding: 20px;
}

.title {
  font-size: 2rem;
  margin-bottom: 20px;
}

.description {
  font-size: 1.1rem;
  color: var(--subtext);
  line-height: 1.6;
}

.button {
  display: inline-block;
  background-color: var(--primary);
  color: white;
  padding: 12px 24px;
  font-size: 1rem;
  border-radius: 8px;
  text-decoration: none;
  transition: background 0.3s;
  margin-top: 20px;
}

.button:hover {
  background-color: var(--accent);
}

.hero {
  background: #e0f2fe;
  padding: 2rem;
  border-radius: var(--radius);
  text-align: center;
  margin-bottom: 2rem;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.5rem;
}

.card {
  background: var(--card-bg);
  border-radius: var(--radius);
  padding: 1rem;
  box-shadow: var(--shadow);
  transition: transform 0.2s;
}

.card:hover {
  transform: translateY(-4px);
}

.card h3 {
  margin-top: 0;
  color: #111827;
}

.card p {
  color: #4b5563;
}

.card a {
  display: inline-block;
  background: var(--secondary);
  color: white;
  padding: 0.5rem 1rem;
  border-radius: 8px;
  text-decoration: none;
  font-weight: bold;
  transition: background 0.3s;
}

.card a:hover {
  background: #059669;
}