:root{--sidebar:#121826;--sidebar2:#1d2535;--primary:#635bff;--bg:#f4f6fa;--card:#fff;--muted:#8a94a6;--text:#202634;--border:#e7eaf0}
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136px);background:#fff;border-radius:15px;overflow:hidden;box-shadow:0 2px 12px rgba(20,30,55,.045)}.conversation-list{border-right:1px solid var(--border);background:#fff}.conv-search{padding:15px;border-bottom:1px solid var(--border)}.conv-item{display:flex;gap:11px;padding:14px 15px;text-decoration:none;color:inherit;border-bottom:1px solid #f0f2f6}.conv-item:hover,.conv-item.active{background:#f7f7ff}.conv-avatar{width:43px;height:43px;border-radius:13px;background:#eef0ff;color:#635bff;display:grid;place-items:center;font-weight:800;flex:none}.conv-meta{min-width:0;flex:1}.conv-meta strong,.conv-meta span{display:block;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.conv-meta span{color:#919aab;font-size:12px;margin-top:3px}.unread-dot{width:9px;height:9px;border-radius:50%;background:#635bff;margin-top:5px}.chat-panel{display:flex;flex-direction:column;min-width:0}.chat-head{height:72px;display:flex;align-items:center;padding:0 20px;border-bottom:1px solid var(--border)}.chat-body{padding:22px;flex:1;overflow:auto;background:#fafbfe;min-height:420px;max-height:calc(100vh - 290px)}.bubble{max-width:74%;padding:10px 13px;border-radius:14px;margin-bottom:10px;box-shadow:0 1px 3px rgba(20,30,55,.05)}.bubble.in{background:#fff;border:1px solid #e9ecf2}.bubble.out{background:#635bff;color:#fff;margin-left:auto}.bubble small{display:block;opacity:.7;font-size:10px;margin-top:5px}.chat-compose{padding:15px 18px;border-top:1px solid var(--border);background:#fff}.empty-state{text-align:center;padding:70px 20px;color:#8d96a8}.empty-state i{font-size:44px;color:#c8cddd}.auth-body{min-height:100vh;display:grid;place-items:center;background:radial-gradient(circle at top right,#e7e5ff,transparent 30%),#f6f7fb}.auth-card{width:min(430px,92vw);background:#fff;border-radius:18px;padding:32px;box-shadow:0 20px 50px rgba(25,35,60,.08)}.auth-logo{display:flex;gap:10px;align-items:center;font-size:22px;font-weight:800;margin-bottom:28px}.auth-logo .brand-mark{color:#fff}@media(max-width:992px){.sidebar{transform:translateX(-100%);transition:.2s}.sidebar.show{transform:translateX(0)}.main{margin-left:0}.content{padding:20px 15px}.topbar{padding:0 15px}.conversation-layout{grid-template-columns:1fr}.conversation-list{display:none}.conversation-layout.no-active .conversation-list{display:block}.conversation-layout.no-active .chat-panel{display:none}}