* {
  box-sizing: border-box;
  font-family: system-ui, sans-serif;
}

body {
  margin: 0;
  background: #f5f6f8;
}

header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 64px;
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 0 24px;
  backdrop-filter: blur(6px);
  background: rgba(0,0,0,0.35);
  color: white;
  z-index: 1000;
}

.logo {
  font-weight: bold;
}

nav button {
  background: transparent;
  border: none;
  color: white;
  cursor: pointer;
  padding: 8px 12px;
}

nav button:hover {
  background: rgba(255,255,255,0.15);
  border-radius: 6px;
}

main {
  padding: 80px 4px;
}

#service-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 20px;
  margin-top: 40px;
}

.service-card {
  background: white;
  padding: 20px;
  border-radius: 10px;
  cursor: pointer;
  box-shadow: 0 4px 10px rgba(0,0,0,0.08);
}