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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: linear-gradient(135deg, #f5f7fa 0%, #e4e8ec 100%);
  min-height: 100vh;
  color: #2d3436;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 3rem 2rem;
}

.header {
  display: flex;
  flex-direction: column;
  align-items: center;
  margin-bottom: 2rem;
  position: relative;
}

h1 {
  font-size: 2.5rem;
  font-weight: 700;
  background: linear-gradient(45deg, #2d3436 30%, #636e72 90%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 1rem;
  text-align: center;
}

.github-link {
  position: absolute;
  right: 0;
  top: 0;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
  color: #2d3436;
  padding: 0.7rem 1.2rem;
  border-radius: 8px;
  background-color: white;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
  transition: all 0.3s ease;
}

.github-link:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.github-icon {
  font-size: 1.3rem;
}

.intro {
  text-align: center;
  color: #636e72;
  margin-bottom: 3rem;
  line-height: 1.8;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
  font-size: 1.1rem;
}

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

.game-card {
  background: white;
  padding: 2rem;
  border-radius: 16px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
  text-decoration: none;
  color: #2d3436;
  transition: all 0.3s ease;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.game-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.12);
}

.game-icon {
  font-size: 3.5rem;
  margin-bottom: 1.2rem;
}

.game-card h2 {
  font-size: 1.4rem;
  font-weight: 600;
  margin-bottom: 0.8rem;
}

.game-card p {
  color: #636e72;
  font-size: 1rem;
  line-height: 1.5;
}

.game-card.disabled {
  opacity: 0.7;
  cursor: not-allowed;
  pointer-events: none;
}