body {
  background: #181c20;
  color: #f5f5f5;
  font-family: 'Segoe UI', Arial, sans-serif;
  margin: 0;
  padding: 0;
  overflow: hidden;
}

.container {
  position: absolute;
  top: 32px;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(35, 39, 43, 0.95);
  border-radius: 16px;
  box-shadow: 0 4px 24px rgba(0,0,0,0.3);
  padding: 24px 32px 18px 32px;
  z-index: 10;
}

h1 {
  text-align: center;
  font-size: 2em;
  margin-bottom: 18px;
  letter-spacing: 1px;
}

#controls {
  display: flex;
  justify-content: center;
  gap: 16px;
  margin-bottom: 0;
}

#imgInput, #audioInput, #startBtn {
  background: #2d3136;
  color: #f5f5f5;
  border: none;
  border-radius: 6px;
  padding: 8px 16px;
  font-size: 1em;
  cursor: pointer;
  transition: background 0.2s;
}

#imgInput:hover, #audioInput:hover, #startBtn:hover {
  background: #3a3f45;
}

#samples {
  display: flex;
  justify-content: center;
  gap: 32px;
  margin-top: 18px;
}

.sample-group {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
}

.sample-thumb {
  width: 64px;
  height: 64px;
  border-radius: 8px;
  border: 2px solid #444;
  background: #222;
  object-fit: cover;
  margin-top: 4px;
  cursor: pointer;
  transition: border 0.2s, box-shadow 0.2s;
}

.sample-thumb:hover {
  border: 2px solid #7fffd4;
  box-shadow: 0 0 8px #7fffd4;
}

canvas {
  position: absolute;
  top: 0; left: 0;
  width: 100vw;
  height: 100vh;
  display: block;
  z-index: 1;
}