* {
  margin: 0;
  padding: 0;
  font-family: 'Segoe UI', sans-serif;
  box-sizing: border-box;
}

body {
  background-color: #0f0f1a;
  color: #ffffff;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 40px 20px;
}

h1 {
  font-size: 2.5em;
  margin-bottom: 10px;
  color: #00f7ff;
}

.stopwatch {
  margin-top: 20px;
  background: #1c1c2b;
  padding: 30px;
  border-radius: 20px;
  box-shadow: 0 0 15px rgba(0,255,255,0.2);
  text-align: center;
}

#display {
  font-size: 3em;
  margin-bottom: 20px;
}

.controls button {
  padding: 12px 25px;
  margin: 0 8px;
  font-size: 1em;
  border: none;
  border-radius: 10px;
  cursor: pointer;
  transition: 0.3s;
}

.controls button:hover {
  transform: scale(1.05);
}

.start {
  background-color: #00f7ff;
  color: #000;
}

.pause {
  background-color: #ffa500;
  color: #000;
}

.reset {
  background-color: #ff3c3c;
  color: #fff;
}

.lap {
  background-color: #7fff00;
  color: #000;
}

.laps {
  margin-top: 20px;
  max-height: 200px;
  overflow-y: auto;
  text-align: left;
}

.lap-item {
  background: #2b2b3c;
  margin: 5px 0;
  padding: 10px;
  border-radius: 8px;
}