body{
  margin:0;
  font-family: 'Segoe UI';
  background: linear-gradient(120deg,#ff9a9e,#fad0c4,#fad0c4,#a18cd1);
  height:100vh;
}

.container{display:flex;height:100vh;}

.sidebar{
  width:230px;
  background: rgba(0,0,0,0.8);
  padding:20px;
  backdrop-filter: blur(10px);
}

.logo{
  color:#ffcc70;
  text-align:center;
  font-size:32px;
}

.sidebar button{
  width:100%;
  padding:14px;
  margin-top:15px;
  border:none;
  border-radius:12px;
  font-size:16px;
  background:linear-gradient(45deg,#00f5a0,#00d9f5);
  cursor:pointer;
  transition:0.3s;
}
.sidebar button:hover{transform:scale(1.05);}

.main{flex:1;padding:30px;}

.mainTitle{
  font-size:45px;
  color:#222;
  text-shadow:2px 2px 5px white;
}

.editorCard,.outputCard{
  background:rgba(255,255,255,0.2);
  padding:20px;
  border-radius:20px;
  margin-top:20px;
  backdrop-filter: blur(10px);
}

textarea{
  width:100%;
  height:150px;
  background:black;
  color:#00ff9c;
  font-size:16px;
}

pre{
  background:black;
  color:#00ff9c;
  padding:15px;
  min-height:150px;
}

.runBtn{
  margin-top:10px;
  padding:10px 20px;
  border:none;
  border-radius:10px;
  background:linear-gradient(45deg,#ff512f,#dd2476);
  color:white;
  font-size:18px;
  cursor:pointer;
}

#liveError{color:red;font-weight:bold;}
.streakBox{
  background:linear-gradient(45deg,#ff9a9e,#fecfef);
  padding:12px;
  border-radius:12px;
  text-align:center;
  margin-bottom:15px;
  color:#222;
  font-weight:bold;
}