:root {
  --primary-color: #0f62fe;
  --bg-color: #f4f4f4;
  --text-color: #333;
  --card-bg: #fff;
}

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

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

.hero {
  background: var(--primary-color);
  color: white;
  text-align: center;
  padding: 4rem 2rem;
  animation: fadeIn 1.5s ease;
}

.hero h1 {
  font-size: 3rem;
  margin-bottom: 0.5rem;
}

.hero p {
  font-size: 1.25rem;
  margin-bottom: 1.5rem;
}

.grid-container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.5rem;
  padding: 3rem 2rem;
  max-width: 1200px;
  margin: auto;
}

.project-card {
  background: var(--card-bg);
  border-radius: 10px;
  padding: 2rem;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
  transition: transform 0.3s, box-shadow 0.3s;
  cursor: pointer;
  border-left: 5px solid var(--primary-color);
  animation: slideIn 0.8s ease;
}

.project-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.1);
}

.project-card h2 {
  margin-bottom: 0.5rem;
}

footer {
  text-align: center;
  padding: 1.5rem;
  background: #e0e0e0;
  font-size: 0.9rem;
  margin-top: 2rem;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(-10px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes slideIn {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}