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

body {
  background: #fdfdfd;
  color: #333;
  line-height: 1.6;
  font-family: 'Open sans', 'sans serif';
  font-weight: normal;
  font-style: normal;
  
}

.container {
  width: 100%;
  max-width: 1000px;
  margin: auto;
  padding: 2em 0;
}

header {
  background: #ffffff;
  border-bottom: 1px solid #eee;
  position: sticky;
  top: 0;
  z-index: 100;
}

header .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

header h1 {
  font-size: 24px;
  font-weight: bold;
  color: #0077cc;
}

nav a {
  margin-left: 15px;
  text-decoration: none;
  color: #444;
  font-weight: 500;
}

nav a:hover {
  color: #0077cc;
}

.hero {
  text-align: center;
  padding: 4em 0;
  background: #e6f1f9;
}

.hero h2 {
  font-size: 28px;
  margin-bottom: 0.5em;
}

.projects h3 {
  text-align: center;
  font-size: 22px;
  margin-bottom: 1.5em;
}

.project-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2em;
}

.card {
  background: white;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 4px 10px rgba(0,0,0,0.05);
  transition: transform 0.3s ease;
}

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

.card img {
  width: 100%;
  height: auto;
  display: block;
}

.card h4 {
  font-size: 18px;
  margin: 0.5em;
}

.card p {
  font-size: 14px;
  padding: 0 0.8em 1em;
  color: #555;
}

footer {
  text-align: center;
  padding: 2em 0;
  font-size: 14px;
  color: #888;
}