:root {
  --primary: #0358e7;
  --dark: #0b0f19;
  --light: #f9fafb;
  --accent: #1f2937;
  --card-bg: #ffffff;
  --text: #111827;
}

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

body {
  font-family: 'Inter', sans-serif;
  background-color: var(--light);
  color: var(--text);
  line-height: 1.6;
}

header {
  background-color: var(--dark);
  color: white;
  padding: 2rem;
  text-align: center;
}

header h1 {
  font-size: 2.5rem;
}

header p {
  margin-top: 0.5rem;
  color: #cbd5e1;
}

nav {
  margin-top: 1rem;
}

nav a {
  color: var(--primary);
  margin: 0 1rem;
  text-decoration: none;
  font-weight: 600;
}

.section {
  padding: 4rem 2rem;
  max-width: 1200px;
  margin: auto;
}

.section-title {
  font-size: 2rem;
  font-weight: 800;
  margin-bottom: 2rem;
  text-align: center;
}

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

.card {
  background-color: var(--card-bg);
  border-radius: 1rem;
  padding: 2rem;
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.05);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.card:hover {
  transform: translateY(-5px);
  box-shadow: 0 15px 25px rgba(0, 0, 0, 0.1);
}

.card h3 {
  font-size: 1.25rem;
  margin-bottom: 0.5rem;
  color: var(--accent);
}

.card p {
  color: #4b5563;
}

footer {
  text-align: center;
  padding: 2rem;
  background-color: var(--dark);
  color: #9ca3af;
  margin-top: 4rem;
}

@media (max-width: 600px) {
  header h1 {
    font-size: 2rem;
  }
  .section {
    padding: 2rem 1rem;
  }
}