:root {
  --primary: #8B5CF6; --primary-hover: #7C3AED; --secondary: #A78BFA;
  --accent: #F97316; --success: #10B981; --error: #EF4444; --warning: #F59E0B;
  --bg: #0F0A1E; --bg-elevated: #1A1237; --bg-card: #231B3F;
  --bg-input: #130E24; --text: #E8E0F8; --text-muted: #9B8FC0; --text-dim: #5A4F78;
  --border: #2D2252; --border-hover: #3F3470; --radius: 12px; --radius-sm: 8px;
  --font: 'Inter', system-ui, sans-serif; --transition: 200ms ease;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
body{font-family:var(--font);background:var(--bg);color:var(--text);min-height:100vh;overflow:hidden}
.app{display:flex;flex-direction:column;height:100vh}

.header{display:flex;align-items:center;justify-content:space-between;padding:10px 20px;background:var(--bg-elevated);border-bottom:1px solid var(--border);gap:12px;flex-shrink:0}
.header-left{display:flex;align-items:center;gap:12px}
.logo{font-size:1.3rem}
.header-title{font-size:1.05rem;font-weight:700;background:linear-gradient(135deg,var(--primary),var(--secondary));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.conn-badge{font-size:.65rem;font-weight:600;padding:3px 10px;border-radius:20px;text-transform:uppercase;letter-spacing:.5px}
.conn-badge.connected{background:rgba(16,185,129,.1);border:1px solid rgba(16,185,129,.3);color:#10B981}
.conn-badge.disconnected{background:rgba(239,68,68,.1);border:1px solid rgba(239,68,68,.2);color:#EF4444}
.conn-badge.connecting{background:rgba(245,158,11,.1);border:1px solid rgba(245,158,11,.2);color:#F59E0B}
.header-right{display:flex;gap:8px}

.conn-bar{display:flex;gap:8px;padding:10px 20px;background:var(--bg-elevated);border-bottom:1px solid var(--border);flex-shrink:0;align-items:center}
.conn-input{flex:1}.conn-proto{width:160px}

.btn{display:inline-flex;align-items:center;gap:6px;padding:8px 14px;font-size:.8rem;font-weight:500;font-family:var(--font);border:none;border-radius:var(--radius-sm);cursor:pointer;transition:all var(--transition);white-space:nowrap}
.btn:disabled{opacity:.4;cursor:not-allowed}
.btn-primary{background:linear-gradient(135deg,var(--primary),var(--primary-hover));color:#fff;box-shadow:0 2px 8px rgba(139,92,246,.3)}
.btn-primary:hover:not(:disabled){transform:translateY(-1px);box-shadow:0 4px 16px rgba(139,92,246,.4)}
.btn-ghost{background:transparent;color:var(--text-muted);border:1px solid var(--border)}
.btn-ghost:hover{background:var(--bg-card);color:var(--text);border-color:var(--border-hover)}
.btn-full{width:100%;justify-content:center}

.main{display:grid;grid-template-columns:1fr 1fr;flex:1;overflow:hidden;gap:1px;background:var(--border)}
.panel{display:flex;flex-direction:column;background:var(--bg);overflow-y:auto;padding:16px;gap:10px}
.panel-head{display:flex;align-items:center;justify-content:space-between;gap:8px}
.panel-title{font-size:.82rem;font-weight:600;color:var(--text);white-space:nowrap}
.filter-input{width:160px;padding:5px 10px;font-size:.72rem}

.input{padding:8px 12px;font-size:.8rem;font-family:var(--font);background:var(--bg-input);border:1px solid var(--border);border-radius:var(--radius-sm);color:var(--text);outline:none}
.input:focus{border-color:var(--primary)}
.textarea{resize:vertical;line-height:1.5;width:100%}

.message-list{flex:1;overflow-y:auto;display:flex;flex-direction:column;gap:4px}
.empty-state{display:flex;align-items:center;justify-content:center;height:100px;color:var(--text-dim);font-size:.82rem}
.msg{padding:8px 12px;border-radius:var(--radius-sm);font-size:.78rem;line-height:1.5;cursor:pointer;transition:all var(--transition);animation:msg-in .2s ease;max-width:90%;word-break:break-word}
.msg:hover{filter:brightness(1.1)}
.msg.sent{background:rgba(139,92,246,.15);border:1px solid rgba(139,92,246,.2);color:var(--secondary);align-self:flex-end}
.msg.received{background:rgba(249,115,22,.08);border:1px solid rgba(249,115,22,.15);color:var(--accent);align-self:flex-start}
.msg.system{background:rgba(100,100,100,.1);border:1px solid rgba(100,100,100,.15);color:var(--text-dim);align-self:center;font-style:italic;font-size:.7rem}
.msg-time{font-size:.6rem;color:var(--text-dim);margin-top:2px}
.msg.active{border-color:var(--primary);box-shadow:0 0 8px rgba(139,92,246,.2)}
@keyframes msg-in{from{opacity:0;transform:translateY(4px)}to{opacity:1;transform:translateY(0)}}

.send-area{display:flex;flex-direction:column;gap:6px;border-top:1px solid var(--border);padding-top:10px}
.send-type{display:flex;gap:4px}
.type-btn{padding:4px 10px;font-size:.7rem;font-family:var(--font);background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-sm);color:var(--text-muted);cursor:pointer;transition:all var(--transition)}
.type-btn.active{background:rgba(139,92,246,.15);border-color:var(--primary);color:var(--primary)}

.inspector{flex:1;overflow-y:auto;padding:12px;background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-sm);font-family:'JetBrains Mono',monospace;font-size:.75rem;line-height:1.7;color:var(--secondary);white-space:pre-wrap;word-break:break-all;min-height:100px}

.section-label{font-size:.7rem;font-weight:600;color:var(--text-dim);text-transform:uppercase;letter-spacing:.5px;margin-bottom:6px}
.conn-info{padding:12px;background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-sm)}
.info-grid{display:grid;grid-template-columns:1fr 1fr;gap:6px}
.info-item{display:flex;justify-content:space-between;font-size:.7rem}
.info-label{color:var(--text-dim)}.info-val{color:var(--text);font-weight:500}

.reconnect-section{padding:10px 14px;background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-sm);font-size:.72rem;color:var(--text-muted)}
.reconnect-section label{cursor:pointer}
.form-group{display:flex;flex-direction:column;gap:3px}
.form-group label{font-size:.65rem;color:var(--text-dim)}

.toast{position:fixed;bottom:24px;left:50%;transform:translateX(-50%);padding:10px 20px;background:var(--bg-card);border:1px solid var(--primary);border-radius:var(--radius-sm);color:var(--primary);font-size:.8rem;font-weight:500;z-index:200;animation:toast-in .3s ease}
@keyframes toast-in{from{opacity:0;transform:translateX(-50%) translateY(10px)}to{opacity:1;transform:translateX(-50%) translateY(0)}}
::-webkit-scrollbar{width:6px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:var(--border);border-radius:3px}
@media(max-width:768px){.main{grid-template-columns:1fr;grid-template-rows:1fr 1fr}.header{flex-wrap:wrap}.conn-bar{flex-wrap:wrap}.conn-proto{width:100%}}