:root{--wa-green: #25D366;--wa-dark-green: #128C7E;--wa-light-green: #DCF8C6;--wa-bg: #ECE5DD;--wa-chat-bg: #E5DDD5;--wa-header: #075E54;--wa-blue-tick: #53BDEB;--wa-gray: #f0f2f5;--sidebar-width: 320px;--header-height: 56px;--text-main: #111b21;--text-secondary: #667781}*{box-sizing:border-box;margin:0;padding:0}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;color:var(--text-main);background-color:var(--wa-gray)}.app-container{display:flex;height:100vh;width:100vw;overflow:hidden}.sidebar{width:var(--sidebar-width);height:100%;background:#fff;border-right:1px solid #ddd;display:flex;flex-direction:column}.sidebar-header{height:var(--header-height);background:var(--wa-gray);display:flex;align-items:center;padding:0 16px;justify-content:space-between;border-bottom:1px solid #ddd}.sidebar-nav{display:flex;padding:8px;gap:8px;background:#fff;border-bottom:1px solid #ddd}.sidebar-nav a{text-decoration:none;color:var(--text-main);padding:8px 16px;border-radius:16px;background:var(--wa-gray);font-size:14px}.sidebar-nav a.active{background:var(--wa-dark-green);color:#fff}.main-content{flex:1;display:flex;flex-direction:column;background:var(--wa-chat-bg)}.login-page{height:100vh;display:flex;align-items:center;justify-content:center;background:var(--wa-header)}.login-card{background:#fff;padding:32px;border-radius:8px;box-shadow:0 4px 12px #0000001a;width:100%;max-width:400px;text-align:center}.login-card h1{margin-bottom:24px;color:var(--text-main)}.login-input{width:100%;padding:12px;border:1px solid #ddd;border-radius:4px;margin-bottom:16px;font-size:16px}.login-btn{width:100%;padding:12px;background:var(--wa-green);color:#fff;border:none;border-radius:4px;font-size:16px;cursor:pointer;font-weight:700}.login-btn:hover{background:var(--wa-dark-green)}.error-msg{color:red;margin-bottom:16px;font-size:14px}.conversation-list-page{display:flex;height:100%;width:100%}.list-container{width:var(--sidebar-width);height:100%;background:#fff;border-right:1px solid #ddd;display:flex;flex-direction:column}.search-bar-container{padding:8px;background:#fff;border-bottom:1px solid #ddd}.search-input{width:100%;padding:8px 12px;border:1px solid #ddd;border-radius:8px;background:var(--wa-gray);font-size:14px}.conversations-scroll{flex:1;overflow-y:auto}.conv-card{display:flex;padding:12px;border-bottom:1px solid #f0f0f0;cursor:pointer}.conv-card:hover,.conv-card.active{background:var(--wa-gray)}.avatar{width:48px;height:48px;border-radius:50%;background:#ccc;display:flex;align-items:center;justify-content:center;font-size:20px;color:#fff;margin-right:12px;flex-shrink:0}.card-content{flex:1;min-width:0}.card-header{display:flex;justify-content:space-between;margin-bottom:4px}.card-name{font-weight:500;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.card-time{font-size:12px;color:var(--text-secondary)}.card-footer{display:flex;justify-content:space-between;align-items:center}.card-preview{font-size:13px;color:var(--text-secondary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;flex:1;margin-right:8px}.state-badge{font-size:11px;padding:2px 8px;border-radius:12px;font-weight:500;text-transform:uppercase}.state-badge.blue{background:#e3f2fd;color:#1976d2}.state-badge.yellow{background:#fff8e1;color:#f57f17}.state-badge.purple{background:#f3e5f5;color:#7b1fa2}.state-badge.green{background:#e8f5e9;color:#388e3c}.state-badge.gray{background:#eee;color:#616161}.state-badge.red{background:#ffebee;color:#d32f2f}.detail-container{flex:1;display:flex;flex-direction:column;background:var(--wa-chat-bg);height:100%}.detail-header{height:var(--header-height);background:var(--wa-gray);padding:0 16px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid #ddd}.header-info{display:flex;align-items:center;gap:12px}.messages-area{flex:1;padding:16px;overflow-y:auto;display:flex;flex-direction:column}.message-bubble-wrapper{display:flex;margin-bottom:8px;width:100%}.message-bubble-wrapper.outbound{justify-content:flex-end}.message-bubble-wrapper.inbound{justify-content:flex-start}.message-bubble{max-width:65%;padding:8px 12px;border-radius:8px;position:relative;box-shadow:0 1px 1px #0000001a;font-size:14px}.outbound .message-bubble{background:var(--wa-light-green);border-top-right-radius:0}.inbound .message-bubble{background:#fff;border-top-left-radius:0}.message-meta{display:flex;justify-content:flex-end;align-items:center;gap:4px;font-size:11px;color:var(--text-secondary);margin-top:4px}.ticks{color:#999}.ticks.read{color:var(--wa-blue-tick)}.funnel-board{display:flex;padding:16px;gap:16px;overflow-x:auto;height:100%;background:var(--wa-chat-bg)}.funnel-col{width:300px;flex-shrink:0;background:var(--wa-gray);border-radius:8px;display:flex;flex-direction:column;max-height:100%}.funnel-col.urgent{border:2px solid #D32F2F}.col-header{padding:12px;font-weight:700;display:flex;justify-content:space-between;border-bottom:1px solid #ddd}.col-count{background:var(--wa-dark-green);color:#fff;padding:2px 8px;border-radius:12px;font-size:12px}.col-body{padding:8px;overflow-y:auto;flex:1}.col-body .conv-card{background:#fff;border-radius:8px;margin-bottom:8px;border:1px solid #ddd}