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

body {
  font-family: 'Arial', sans-serif;
  background-color: #e5e5e5;
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
  margin: 0;
}

.stopwatch-container {
  perspective: 1000px; /* 3D perspective */
}

.stopwatch {
  background-color: #ffffff;
  border-radius: 20px;
  padding: 30px;
  width: 350px;
  text-align: center;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
  transform-style: preserve-3d;
  transform: rotateY(0deg);
  transition: transform 0.5s ease-in-out;
}

.stopwatch:hover {
  transform: rotateY(10deg); /* 3D hover effect */
}

h1 {
  margin-bottom: 15px;
  font-size: 2.5em;
  color: #333;
  font-weight: 700;
}

.time-display {
  font-size: 4em;
  font-weight: 600;
  color: #4e73df;
  margin-bottom: 20px;
  letter-spacing: 1px;
}

.controls button {
  background-color: #4e73df;
  color: white;
  padding: 12px 20px;
  font-size: 16px;
  border: none;
  border-radius: 5px;
  margin: 5px;
  cursor: pointer;
  transition: transform 0.3s ease, background-color 0.3s ease;
}

.controls button:hover {
  background-color: #365fdd;
  transform: scale(1.1);
}

.laps {
  margin-top: 30px;
}

.laps ul {
  list-style-type: none;
}

.laps li {
  background-color: #f1f1f1;
  padding: 8px;
  margin: 5px 0;
  border-radius: 5px;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.laps li:nth-child(odd) {
  background-color: #e2e2e2;
}

/* Responsive Design */
@media (max-width: 768px) {
  .stopwatch {
    width: 280px;
  }

  h1 {
    font-size: 2em;
  }

  .time-display {
    font-size: 3em;
  }

  .controls button {
    padding: 10px 15px;
    font-size: 14px;
  }
}

@media (max-width: 480px) {
  .stopwatch {
    width: 250px;
  }

  h1 {
    font-size: 1.8em;
  }

  .time-display {
    font-size: 2.5em;
  }

  .controls button {
    padding: 8px 12px;
    font-size: 12px;
  }
}