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

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background: #000000;
  min-height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
}

.container {
  text-align: center;
  background: #000000;
  padding: 40px;
  border-radius: 15px;
  max-width: 600px;
  width: 90%;
}

h1 {
  color: #333;
  margin-bottom: 30px;
  font-size: 2.5em;
}

.image-display {
  margin-bottom: 30px;
  overflow: hidden;
  border-radius: 10px;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.15);
}

#randomImage {
  max-width: 100%;
  max-height: 400px;
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.btn {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  padding: 12px 40px;
  border: none;
  border-radius: 25px;
  font-size: 1.1em;
  cursor: pointer;
  transition: transform 0.2s, box-shadow 0.2s;
  font-weight: 600;
}

.btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(102, 126, 234, 0.4);
}

.btn:active {
  transform: translateY(0);
}