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

:root {
  --bg-color: #0f172a;
  --card-bg: #1e293b;
  --text-color: #e2e8f0;
  --accent: #3b82f6;
  --accent-hover: #2563eb;
  --border-color: #334155;
}

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background-color: var(--bg-color);
  color: var(--text-color);
  margin: 0;
  padding: 2rem;
}

h1 {
  text-align: center;
  margin-bottom: 2rem;
  color: #f8fafc;
}

.container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 2rem;
  max-width: 1200px;
  margin: 0 auto;
}

.card {
  background: var(--card-bg);
  padding: 2rem;
  border-radius: 16px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
  border: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: transform 0.3s;
}

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

.card h2 {
  font-size: 1.4rem;
  color: #f1f5f9;
  margin-bottom: 1rem;
}

.card p {
  font-size: 1rem;
  margin-bottom: 1rem;
  line-height: 1.5;
}

.card a {
  text-decoration: none;
  background: var(--accent);
  color: #fff;
  padding: 0.6rem 1rem;
  border-radius: 8px;
  font-weight: bold;
  text-align: center;
  transition: background 0.2s;
}

.card a:hover {
  background: var(--accent-hover);
}

@media (max-width: 600px) {
  body {
    padding: 1rem;
  }
}