:root{--bg-color:#0f172a;--panel-bg:#1e293bb3;--border:#ffffff1a;--text-primary:#f8fafc;--text-muted:#94a3b8;--accent:#3b82f6;--accent-hover:#2563eb;--chat-user:#3b82f6;--chat-bot:#334155;--danger:#ef4444}*{box-sizing:border-box;margin:0;padding:0}body{background-color:var(--bg-color);color:var(--text-primary);background-image:radial-gradient(at 0 0,#3b82f626 0,#0000 50%),radial-gradient(at 100% 100%,#10b9811a 0,#0000 50%);height:100vh;font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;overflow:hidden}.dashboard-container{gap:1rem;height:100vh;padding:1rem;display:flex}.sidebar{background:var(--panel-bg);-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);border:1px solid var(--border);border-radius:16px;flex-direction:column;width:320px;display:flex;overflow:hidden}.sidebar-header{border-bottom:1px solid var(--border);padding:1.5rem}.sidebar-header h1{align-items:center;gap:.5rem;font-size:1.25rem;font-weight:600;display:flex}.chat-list{flex:1;overflow-y:auto}.chat-item{cursor:pointer;border-bottom:1px solid #ffffff0d;flex-direction:column;gap:.25rem;padding:1rem 1.5rem;transition:all .2s;display:flex}.chat-item:hover{background:#ffffff0d}.chat-item.active{border-left:4px solid var(--accent);background:#3b82f633}.client-phone{font-size:1rem;font-weight:500}.last-message{color:var(--text-muted);white-space:nowrap;text-overflow:ellipsis;font-size:.85rem;overflow:hidden}.chat-area{background:var(--panel-bg);-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);border:1px solid var(--border);border-radius:16px;flex-direction:column;flex:1;display:flex;overflow:hidden}.chat-header{border-bottom:1px solid var(--border);justify-content:space-between;align-items:center;padding:1.5rem;display:flex}.chat-history{flex-direction:column;flex:1;gap:1rem;padding:1.5rem;display:flex;overflow-y:auto}.message{border-radius:16px;max-width:75%;padding:.85rem 1.2rem;font-size:.95rem;line-height:1.5;animation:.3s fadeIn;box-shadow:0 4px 6px -1px #0000001a}.message.user{background-color:var(--chat-user);border-bottom-right-radius:4px;align-self:flex-end}.message.assistant{background-color:var(--chat-bot);border-bottom-left-radius:4px;align-self:flex-start}.timestamp{opacity:.6;text-align:right;margin-top:.4rem;font-size:.7rem}.empty-state{height:100%;color:var(--text-muted);flex-direction:column;justify-content:center;align-items:center;gap:1rem;display:flex}.empty-state svg{opacity:.5}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}::-webkit-scrollbar{width:6px}::-webkit-scrollbar-track{background:0 0}::-webkit-scrollbar-thumb{background:#fff3;border-radius:3px}::-webkit-scrollbar-thumb:hover{background:#ffffff4d}