body {
  margin: 0;
  padding: 0;
  min-height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  background: linear-gradient(135deg, #0d1b2a, #1b263b);
  font-family: 'Delius', sans-serif;
  color: #e0e1dd;
}

.container {
  background: rgba(27, 38, 59, 0.8);
  backdrop-filter: blur(10px);
  padding: 2rem;
  border-radius: 15px;
  box-shadow: 0 0 20px rgba(0, 255, 255, 0.5);
  text-align: center;
  width: 80%;
  max-width: 800px;
  border: 1px solid #00ffff;
}

h1 {
  font-size: 2.5rem;
  color: #00ffff;
  text-shadow: 0 0 10px #00ffff;
  margin-bottom: 1.5rem;
  font-weight: normal;
}

#textInput {
  padding: 0.8rem 1.5rem;
  font-size: 1.2rem;
  border: 2px solid #00ffff;
  border-radius: 5px;
  background: #1b263b;
  color: #e0e1dd;
  text-align: center;
  transition: all 0.3s ease;
  box-shadow: 0 0 10px #00ffff;
  width: 60%;
  max-width: 400px;
}

#textInput:focus {
  outline: 3px solid #ff00ff;
  outline-offset: 2px;
  background: #00ffff;
  color: #1b263b;
  box-shadow: 0 0 20px #00ffff;
}

.generate-btn, .copy-btn {
  background: #1b263b;
  color: #00ffff;
  padding: 0.8rem 1.5rem;
  border: 2px solid #00ffff;
  border-radius: 5px;
  cursor: pointer;
  font-size: 1.2rem;
  transition: all 0.3s ease;
  box-shadow: 0 0 10px #00ffff;
  margin: 5px;
  display: inline-block;
}

.generate-btn:hover, .copy-btn:hover,
.generate-btn:focus, .copy-btn:focus {
  background: #00ffff;
  color: #1b263b;
  box-shadow: 0 0 20px #00ffff;
  transform: scale(1.05);
}

.generate-btn:focus, .copy-btn:focus {
  outline: 3px solid #ff00ff;
  outline-offset: 2px;
}

.copy-btn:disabled {
  background: #ccc;
  cursor: not-allowed;
  border-color: #ccc;
  box-shadow: none;
}

.copy-btn {
  position: absolute;
  top: 0.5rem;
  right: 0.5rem;
  width: 2rem;
  height: 2rem;
  padding: 0.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

.copy-btn::after {
  content: 'Copy';
  position: absolute;
  top: -2.2rem;
  right: -0.5rem;
  background: rgba(0, 0, 0, 0.8);
  color: #00ffff;
  padding: 0.3rem 0.6rem;
  border-radius: 5px;
  font-size: 0.8rem;
  opacity: 0;
  transition: opacity 0.3s ease;
  pointer-events: none;
}

.copy-btn.copied::after {
  content: 'Copied!';
  opacity: 1;
}

.copy-btn i {
  font-size: 1.2rem;
}

.qrcode-output {
  margin: 20px 0;
  text-align: center;
  display: inline-flex;
}

.qrcode-output canvas {
  display: block;
  margin: 0 auto;
  border: 2px solid #00ffff;
  border-radius: 10px;
  box-shadow: 0 0 15px rgba(0, 255, 255, 0.7);
}

.input-zone {
  margin: 20px 0;
  text-align: center;
}

.output-container {
  position: relative;
  margin-top: 1rem;
}

.footer, .bottom-text {
  margin-top: 2rem;
  font-size: 0.9rem;
  color: #e0e1dd;
  opacity: 1;
}

.footer a, .bottom-text a {
  color: #00ffff;
  text-decoration: none;
  text-shadow: 0 0 5px #00ffff;
}

.footer a:hover, .bottom-text a:hover,
.footer a:focus, .bottom-text a:focus {
  color: #ff00ff;
  text-shadow: 0 0 10px #ff00ff;
  text-decoration: underline;
}

.footer a:focus, .bottom-text a:focus {
  outline: 3px solid #00ff00;
  outline-offset: 2px;
}

.skip-link {
  position: absolute;
  top: -40px;
  left: 0;
  background: #00ffff;
  color: #1b263b;
  padding: 8px;
  z-index: 100;
}

.skip-link:focus {
  top: 0;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

@keyframes pulse {
  0% { opacity: 1; }
  50% { opacity: 0.5; }
  100% { opacity: 1; }
}