*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background:linear-gradient(135deg,#667eea,#764ba2);min-height:100vh;color:#333}#root{min-height:100vh}.app{max-width:1400px;margin:0 auto;padding:20px}.header{background:#fff;border-radius:10px;padding:30px;margin-bottom:30px;box-shadow:0 4px 6px #0000001a}.header h1{font-size:2.5rem;margin-bottom:10px;background:linear-gradient(135deg,#667eea,#764ba2);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.header p{color:#666;font-size:1.1rem}.main-content{display:grid;grid-template-columns:1fr 1fr;gap:30px}.card{background:#fff;border-radius:10px;padding:30px;box-shadow:0 4px 6px #0000001a}.card h2{font-size:1.8rem;margin-bottom:20px;color:#667eea}.form-group{margin-bottom:20px}.form-group label{display:block;margin-bottom:8px;font-weight:600;color:#555}.form-group input,.form-group select{width:100%;padding:12px;border:2px solid #e0e0e0;border-radius:6px;font-size:1rem;transition:border-color .3s}.form-group input:focus,.form-group select:focus{outline:none;border-color:#667eea}.button{padding:12px 30px;background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;border:none;border-radius:6px;font-size:1rem;font-weight:600;cursor:pointer;transition:transform .2s,box-shadow .2s}.button:hover{transform:translateY(-2px);box-shadow:0 6px 12px #667eea4d}.button:disabled{opacity:.6;cursor:not-allowed;transform:none}.channel-list{list-style:none}.channel-item{padding:15px;border:2px solid #e0e0e0;border-radius:6px;margin-bottom:15px;transition:border-color .3s,transform .2s}.channel-item:hover{border-color:#667eea;transform:translate(5px)}.channel-item h3{font-size:1.2rem;margin-bottom:8px;color:#333}.channel-item .meta{display:flex;gap:15px;font-size:.9rem;color:#888}.badge{display:inline-block;padding:4px 10px;border-radius:4px;font-size:.85rem;font-weight:600}.badge.private{background:#ffeaa7;color:#d63031}.badge.public{background:#55efc4;color:#00b894}.badge.active{background:#74b9ff;color:#0984e3}.success-message{background:#00b894;color:#fff;padding:15px;border-radius:6px;margin-top:20px}.error-message{background:#d63031;color:#fff;padding:15px;border-radius:6px;margin-top:20px}.info-box{background:#f0f0f0;padding:15px;border-radius:6px;margin-top:20px;font-family:monospace;font-size:.9rem;word-break:break-all}.loading{text-align:center;padding:20px;color:#888}@media (max-width: 768px){.main-content{grid-template-columns:1fr}}