body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
  margin: 0;
  background: linear-gradient(135deg, #6e8efb, #a777e3);
  color: white;
}

.container {
  text-align: center;
  background: rgba(0, 0, 0, 0.2);
  padding: 30px;
  border-radius: 15px;
  box-shadow: 0 0 20px rgba(0,0,0,0.5);
}

#display {
  font-size: 48px;
  margin: 20px 0;
}

.buttons button {
  margin: 5px;
  padding: 10px 20px;
  font-size: 16px;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  transition: 0.3s;
}

button#start { background: #28a745; color: white; }
button#pause { background: #ffc107; color: black; }
button#reset { background: #dc3545; color: white; }
button#lap   { background: #17a2b8; color: white; }

button:hover {
  opacity: 0.8;
}

#laps {
  margin-top: 20px;
  list-style: none;
  padding: 0;
  text-align: left;
  max-height: 150px;
  overflow-y: auto;
}