*{margin:0;padding:0;box-sizing:border-box}
:root{--bg:#0f1117;--bg2:#1a1d27;--bg3:#242833;--border:#2d3348;--text:#e4e7f1;--text2:#8b92a8;--blue:#2563eb;--green:#22c55e;--yellow:#f59e0b;--red:#ef4444;--purple:#8b5cf6}
body{font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;background:var(--bg);color:var(--text);height:100vh;overflow:hidden}
a{color:inherit;text-decoration:none}
.app{display:flex;height:100vh}

/* Sidebar */
.sidebar{width:280px;background:var(--bg2);border-right:1px solid var(--border);display:flex;flex-direction:column;flex-shrink:0}
.sidebar-header{padding:16px 20px;border-bottom:1px solid var(--border);font-size:18px;font-weight:700;display:flex;align-items:center;gap:10px}
.sidebar-header i{color:var(--blue);font-size:22px}
.sidebar-nav{flex:1;overflow-y:auto;padding:8px}
.nav-item{display:flex;align-items:center;gap:10px;padding:10px 16px;border-radius:8px;color:var(--text2);transition:.15s}
.nav-item:hover,.nav-item.active{background:var(--bg3);color:var(--text)}
.nav-item i{font-size:18px}
.badge{margin-left:auto;background:var(--blue);color:#fff;font-size:11px;padding:2px 8px;border-radius:10px;font-weight:600}
.badge-blue{background:var(--blue)}.badge-green{background:var(--green)}.badge-yellow{background:var(--yellow)}
.sidebar-footer{padding:12px;border-top:1px solid var(--border)}
.user-info{display:flex;align-items:center;gap:8px;padding:8px 16px;color:var(--text2);font-size:13px}

/* Content */
.content{flex:1;display:flex;flex-direction:column;overflow:hidden}
.content-header{padding:16px 24px;border-bottom:1px solid var(--border);display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px}
.content-header h2{font-size:18px;display:flex;align-items:center;gap:8px}
.stats-bar{display:flex;gap:16px;font-size:13px;color:var(--text2)}
.stat{display:flex;align-items:center;gap:4px}

/* Conversation list */
.conversation-list{flex:1;overflow-y:auto;padding:8px}
.conversation-item{display:flex;gap:12px;padding:12px 16px;border-radius:8px;transition:.15s;border-bottom:1px solid var(--border)}
.conversation-item:hover{background:var(--bg3)}
.conv-avatar{width:40px;height:40px;background:var(--bg3);border-radius:50%;display:flex;align-items:center;justify-content:center;flex-shrink:0}
.conv-avatar i{font-size:20px;color:var(--blue)}
.conv-info{flex:1;min-width:0}
.conv-top{display:flex;justify-content:space-between;margin-bottom:4px}
.conv-name{font-weight:600;font-size:14px}
.conv-time{font-size:12px;color:var(--text2)}
.conv-bottom{display:flex;justify-content:space-between;align-items:center}
.conv-preview{font-size:13px;color:var(--text2);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:80%}
.unread-badge{background:var(--blue);color:#fff;font-size:11px;padding:1px 7px;border-radius:10px;font-weight:700}
.conv-meta{display:flex;gap:8px;margin-top:6px}
.status-tag{font-size:11px;padding:2px 8px;border-radius:4px;font-weight:600;text-transform:uppercase}
.status-bot{background:rgba(37,99,235,.15);color:var(--blue)}
.status-active{background:rgba(34,197,94,.15);color:var(--green)}
.status-pending{background:rgba(245,158,11,.15);color:var(--yellow)}
.status-resolved{background:rgba(139,92,246,.15);color:var(--purple)}
.agent-tag,.channel-tag{font-size:11px;color:var(--text2);display:flex;align-items:center;gap:3px}

/* Chat */
.chat-content{position:relative}
.chat-header{padding:12px 24px;border-bottom:1px solid var(--border);display:flex;align-items:center;gap:12px}
.chat-header h2{font-size:16px}
.conv-id{font-size:12px;color:var(--text2)}
.messages{flex:1;overflow-y:auto;padding:20px 24px;display:flex;flex-direction:column;gap:8px}
.message{display:flex;max-width:70%}
.message-visitor{align-self:flex-start}
.message-bot{align-self:flex-start}
.message-agent{align-self:flex-end}
.msg-bubble{padding:10px 14px;border-radius:12px;max-width:100%}
.message-visitor .msg-bubble{background:var(--bg3);border-bottom-left-radius:4px}
.message-bot .msg-bubble{background:rgba(37,99,235,.15);border-bottom-left-radius:4px}
.message-agent .msg-bubble{background:var(--blue);border-bottom-right-radius:4px}
.msg-sender{font-size:11px;color:var(--text2);margin-bottom:4px;display:flex;align-items:center;gap:4px}
.message-agent .msg-sender{color:rgba(255,255,255,.7)}
.msg-content{font-size:14px;line-height:1.5;word-break:break-word}
.msg-time{font-size:11px;color:var(--text2);text-align:right;margin-top:4px}
.message-agent .msg-time{color:rgba(255,255,255,.5)}

/* Chat input */
.chat-input{display:flex;gap:8px;padding:12px 24px;border-top:1px solid var(--border);background:var(--bg2)}
.chat-input input{flex:1;background:var(--bg3);border:1px solid var(--border);border-radius:8px;padding:10px 16px;color:var(--text);font-size:14px;outline:none}
.chat-input input:focus{border-color:var(--blue)}
.chat-resolved{padding:16px 24px;text-align:center;color:var(--text2);border-top:1px solid var(--border);background:var(--bg2)}

/* Contact panel */
.contact-panel{padding:20px;text-align:center;border-bottom:1px solid var(--border)}
.contact-avatar{font-size:48px;color:var(--blue);margin-bottom:8px}
.contact-panel h3{margin-bottom:8px}
.contact-panel p{font-size:13px;color:var(--text2);margin-bottom:4px;display:flex;align-items:center;justify-content:center;gap:6px}
.sidebar-actions{padding:12px;display:flex;flex-direction:column;gap:6px;border-bottom:1px solid var(--border)}
.canned-section{padding:12px;flex:1;overflow-y:auto}
.canned-section h4{font-size:13px;color:var(--text2);margin-bottom:8px;display:flex;align-items:center;gap:6px}
.canned-btn{display:block;width:100%;text-align:left;background:var(--bg3);border:1px solid var(--border);color:var(--text2);padding:6px 10px;border-radius:6px;font-size:12px;cursor:pointer;margin-bottom:4px;transition:.15s}
.canned-btn:hover{background:var(--bg);color:var(--text);border-color:var(--blue)}

/* Typing */
.typing-indicator{padding:8px 24px;display:flex;gap:4px;align-items:center}
.typing-indicator span{width:8px;height:8px;background:var(--text2);border-radius:50%;animation:typing .8s infinite alternate}
.typing-indicator span:nth-child(2){animation-delay:.2s}
.typing-indicator span:nth-child(3){animation-delay:.4s}
@keyframes typing{from{opacity:.3;transform:translateY(0)}to{opacity:1;transform:translateY(-4px)}}

/* Buttons */
.btn{padding:8px 16px;border-radius:8px;border:none;cursor:pointer;font-size:14px;font-weight:600;display:inline-flex;align-items:center;gap:6px;transition:.15s}
.btn-primary{background:var(--blue);color:#fff}.btn-primary:hover{opacity:.9}
.btn-green{background:var(--green);color:#fff}
.btn-yellow{background:var(--yellow);color:#000}
.btn-outline{background:transparent;border:1px solid var(--border);color:var(--text2)}.btn-outline:hover{border-color:var(--text)}
.btn-sm{padding:6px 12px;font-size:12px}
.btn-full{width:100%}

/* Form */
.form-group{margin-bottom:16px}
.form-group label{display:block;font-size:13px;color:var(--text2);margin-bottom:6px}
.form-group input{width:100%;background:var(--bg3);border:1px solid var(--border);border-radius:8px;padding:10px 14px;color:var(--text);font-size:14px;outline:none}
.form-group input:focus{border-color:var(--blue)}

/* Login */
.login-container{height:100vh;display:flex;align-items:center;justify-content:center}
.login-card{background:var(--bg2);border:1px solid var(--border);border-radius:16px;padding:40px;width:100%;max-width:380px}
.login-header{text-align:center;margin-bottom:28px}
.login-header i{font-size:40px;color:var(--blue)}
.login-header h1{font-size:22px;margin-top:8px}
.login-header p{color:var(--text2);font-size:14px}

/* Alert */
.alert{padding:10px 14px;border-radius:8px;margin-bottom:16px;font-size:13px}
.alert-error{background:rgba(239,68,68,.15);color:var(--red);border:1px solid rgba(239,68,68,.3)}

/* Empty state */
.empty-state{text-align:center;padding:60px 20px;color:var(--text2)}
.empty-state i{font-size:48px;color:var(--bg3)}
.empty-state h3{margin:16px 0 8px;color:var(--text)}
.widget-code{margin-top:20px;background:var(--bg3);padding:12px;border-radius:8px;font-size:12px}
.widget-code code{color:var(--blue);word-break:break-all}

/* Toast */
.toast{position:fixed;top:20px;right:20px;background:var(--bg2);border:1px solid var(--blue);border-radius:10px;padding:12px 20px;font-size:13px;animation:slideIn .3s;z-index:9999;max-width:320px}
@keyframes slideIn{from{transform:translateX(100%);opacity:0}to{transform:translateX(0);opacity:1}}

/* Responsive */
@media(max-width:768px){
  .sidebar{width:100%;position:fixed;z-index:100;display:none}
  .app.sidebar-open .sidebar{display:flex}
}