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

body {
  font-family: sans-serif;
  background: #f9fafb;
  color: #111827;
}

/* Header */
.header {
  display: flex;
  justify-content: space-between;
  padding: 20px 48px;
  background: #ffffff;
  border-bottom: 1px solid #e5e7eb;
}

.logo {
  font-weight: bold;
  font-size: 1.3rem;
  color: #2563eb;
}

.contact-btn {
  background: #2563eb;
  color: white;
  padding: 10px 20px;
  border-radius: 6px;
  text-decoration: none;
}

/* Intro */
.intro {
  text-align: center;
  padding: 100px 20px;
}

.intro-title {
  font-size: 2.8rem;
  margin-bottom: 10px;
}

.intro-sub {
  color: #6b7280;
  margin-bottom: 20px;
}

.intro-btn {
  background: #2563eb;
  color: white;
  padding: 12px 28px;
  border-radius: 8px;
  text-decoration: none;
}

/* Projects */
.projects {
  display: flex;
  justify-content: center;
  gap: 20px;
  padding: 50px;
  flex-wrap: wrap;
}

.project-card {
  background: #ffffff;
  padding: 25px;
  border-radius: 10px;
  border: 1px solid #e5e7eb;
  width: 260px;
  text-align: center;
}

.project-card h3 {
  margin-bottom: 10px;
  color: #2563eb;
}

/* Footer */
.footer {
  text-align: center;
  padding: 20px;
  background: #111827;
  color: #9ca3af;
}