styles.css

body {
  width: 400px;
  margin: 0;
  font-family: 'Segoe UI', system-ui, sans-serif;
  animation: slideIn 0.3s ease-out;
  background: rgb(255, 255, 255);
  border-radius: 16px;
  overflow: hidden;
}

.container {
  padding: 24px;
  background: white;
  min-height: 360px;
}

h1 {
  font-size: 24px;
  background: linear-gradient(45deg, #845EC2, #00C9A7, #FF6B6B);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  text-align: center;
  margin: 0 0 24px 0;
  animation: gradient 3s ease infinite;
  background-size: 200% 200%;
}

@keyframes slideIn {
  from {
    opacity: 0;
    transform: translateY(-20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.slider-container {
  margin-bottom: 24px;
}

.slider {
  appearance:none;
  -webkit-appearance: none;
  width: 100%;
  height: 6px;
  border-radius: 3px;
  background: #e2e8f0;
  outline: none;
  margin: 16px 0;
}

.slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: #845EC2;
  cursor: pointer;
  transition: all 0.3s ease;
}

.levels {
  display: flex;
  justify-content: space-between;
  color: #64748b;
  font-size: 14px;
}

#summarizeButton {
  width: 100%;
  padding: 12px;
  background: white;
  color: #845EC2; /* Default color */
  font-weight: 600;
  cursor: pointer;
  position: relative;
  border: none;
  border-radius: 8px;
  transition: all 0.3s ease;
  z-index: 1;
  overflow: hidden;
}

#summarizeButton::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: 8px;
  padding: 2px;
  background: linear-gradient(45deg, #845EC2, #00C9A7, #FF6B6B, #845EC2);
  -webkit-mask: 
    linear-gradient(#fff 0 0) content-box, 
    linear-gradient(#fff 0 0);
  mask: 
    linear-gradient(#fff 0 0) content-box, 
    linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  background-size: 300% 300%;
  z-index: -1;
  animation: moveGradient 2s ease infinite;
}

#summarizeButton:hover {
  color: #fff; /* Change text color on hover */
}

#summarizeButton:hover::before {
  -webkit-mask: none;
  mask: none;
}

#summarizeButton:active {
  color: #ffffff; /* Keep text visible after click */
}

#summarizeButton.loading {
  color: #ffffff; /* Keep text visible while loading */
}

#summarizeButton.loading::before {
  -webkit-mask: none;
  mask: none;
}

@keyframes moveGradient {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

#output {
  margin-top: 24px;
  padding: 16px;
  height: 200px;
  border-radius: 8px;
  background: #f1f5f9;
  overflow-y: auto;
  font-size: 14px;
  line-height: 1.6;
}

.typing-effect {
  display: block;
  white-space: pre-wrap;
  overflow: hidden;
  border-right: 2px solid #845EC2;
  animation: typing 5s steps(50) 1s forwards, blink-caret 0.75s step-end infinite;
}

@keyframes typing {
  from {
    width: 0;
  }
  to {
    width: 100%;
  }
}

@keyframes blink-caret {
  50% {
    border-color: transparent;
  }
}