@import url('https://fonts.googleapis.com/css2?family=Share+Tech+Mono&display=swap');

:root {
  --bg-dark: #0a0a14;
  --bg-glass: rgba(10,10,20,0.6);
  --neon-blue: #00f0ff;
  --neon-pink: #ff00ff;
  --text-color: #f0f0f0;
  --neon-shadow: 0 0 5px #00f0ff, 0 0 10px #ff00ff, 0 0 20px #00f0ff, 0 0 40px #ff00ff;
}

body {
  margin:0;
  font-family: 'Share Tech Mono', monospace;
  background: #05050f;
  color: var(--text-color);
}

.container {
  max-width: 950px;
  margin:40px auto;
  padding:30px;
  background: var(--bg-glass);
  border-radius:16px;
  backdrop-filter: blur(15px) saturate(180%);
  box-shadow: 0 0 40px rgba(0,255,255,0.2), 0 0 20px rgba(255,0,255,0.2);
  border:1px solid rgba(255,255,255,0.1);
}

header {
  display:flex;
  justify-content: space-between;
  align-items:center;
  margin-bottom:25px;
}

.logo img { height:60px; margin-right:15px; }
.logo h1 {
  display:inline-block;
  font-size:2rem;
  color: var(--neon-pink);
  text-shadow: var(--neon-shadow);
  animation: flicker 2s infinite;
}

@keyframes flicker {
  0%, 19%, 21%, 23%, 25%, 54%, 56%, 100% { opacity: 1; }
  20%, 22%, 24%, 55% { opacity: 0.4; }
}

#toggle-theme {
  background:none;
  border:none;
  color: var(--neon-blue);
  font-size:1.7rem;
  cursor:pointer;
  transition: transform 0.3s;
}
#toggle-theme:hover { transform: scale(1.3) rotate(10deg); }

textarea, input, pre {
  width:100%;
  padding:14px;
  margin-top:5px;
  border-radius:10px;
  border:none;
  background: rgba(0,0,0,0.5);
  color: var(--text-color);
  font-family: monospace;
  font-size:14px;
  resize: vertical;
  transition: all 0.3s ease;
}
textarea:focus, input:focus, pre:focus {
  outline:none;
  box-shadow: 0 0 20px var(--neon-blue);
}

textarea::placeholder, input::placeholder { color: #aaa; }

.buttons {
  margin-top:15px;
  display:flex;
  gap:12px;
}

button {
  flex:1;
  padding:14px 25px;
  border:none;
  border-radius:12px;
  cursor:pointer;
  background: linear-gradient(45deg, var(--neon-blue), var(--neon-pink));
  color:#000;
  font-weight:bold;
  font-size:14px;
  text-transform: uppercase;
  box-shadow: 0 0 10px #00f0ff, 0 0 20px #ff00ff;
  transition: transform 0.3s, box-shadow 0.3s;
}
button:hover {
  transform: scale(1.07);
  box-shadow: 0 0 30px #00f0ff, 0 0 40px #ff00ff, 0 0 60px #00f0ff;
}

pre {
  margin-top:15px;
  padding:20px;
  border-radius:12px;
  background: rgba(0,0,0,0.65);
  overflow-x:auto;
  max-height:350px;
  font-size:14px;
  line-height:1.4;
  box-shadow: 0 0 15px rgba(0,255,255,0.2), 0 0 20px rgba(255,0,255,0.2);
}

@media (max-width:600px){
  header { flex-direction: column; align-items:flex-start; }
  .buttons { flex-direction: column; }
}