:root{--primary:#0084ff;--primary-hover:#0073e6;--text-main:#1c1e21;--text-muted:#65676b;--bg-main:#fff;--bg-sidebar:#fff;--bg-chat:#f0f2f5;--nav-bg:#f8f9fa;--nav-icon:#4b5563;--nav-active-bg:#eff6ff;--nav-active-icon:#2563eb;--border-color:#e5e7eb}*{box-sizing:border-box;margin:0;padding:0;font-family:Inter,Kanit,-apple-system,sans-serif}body{height:100vh;color:var(--text-main);background:var(--bg-main);display:flex;overflow:hidden}.app-container{background:var(--bg-main);width:100vw;height:100vh;display:flex;overflow:hidden}.app-nav{background:var(--nav-bg);border-right:1px solid var(--border-color);flex-direction:column;align-items:center;width:80px;padding:24px 0;display:flex}.nav-brand{border-bottom:1px solid #ffffff1a;flex-direction:column;justify-content:center;align-items:center;width:100%;margin-bottom:16px;padding-bottom:8px;display:flex}.nav-menu{flex-direction:column;flex:1;align-items:center;gap:12px;width:100%;display:flex}.nav-btn{color:var(--nav-icon);cursor:pointer;background:0 0;border:none;border-radius:16px;flex-direction:column;justify-content:center;align-items:center;gap:4px;width:56px;height:56px;font-size:.65rem;font-weight:500;transition:all .2s;display:flex}.nav-btn:hover{color:#111827;background:#f3f4f6}.nav-btn.active{background:var(--nav-active-bg);color:var(--nav-active-icon)}.nav-footer{justify-content:center;width:100%;margin-top:auto;display:flex}.sidebar{border-right:1px solid var(--border-color);background:var(--bg-sidebar);flex-direction:column;width:360px;display:flex}.sidebar-header{background:var(--bg-sidebar);border-bottom:1px solid var(--border-color);flex-direction:column;gap:15px;padding:20px 24px 15px;display:flex}.sidebar-header h1{color:var(--text-main);font-size:1.4rem;font-weight:700}.search-bar{background:#f3f4f6;border-radius:8px;align-items:center;gap:8px;padding:8px 12px;display:flex}.search-bar input{width:100%;color:var(--text-main);background:0 0;border:none;outline:none;font-size:.95rem}.chat-list{background:var(--bg-sidebar);flex:1;overflow-y:auto}.chat-filters-container{background:var(--bg-sidebar);border-bottom:1px solid var(--border-color);flex-direction:column;gap:2px;padding:8px 12px;display:flex}.filter-item{cursor:pointer;color:#4b5563;border-radius:8px;justify-content:space-between;align-items:center;padding:9px 12px;font-size:.88rem;font-weight:500;transition:all .15s;display:flex}.filter-item:hover{color:#111827;background:#f3f4f6}.filter-item.active{color:#111827;background:#e5e7eb;font-weight:600}.filter-left{align-items:center;gap:10px;display:flex}.filter-badge{color:#fff;text-align:center;background:#06c755;border-radius:12px;min-width:22px;padding:2px 8px;font-size:.72rem;font-weight:700}.filter-badge.unread-badge{background:#06c755;box-shadow:0 0 6px #06c75566}.chat-status-select{color:#1f2937;cursor:pointer;background:#fff;border:1px solid #d1d5db;border-radius:8px;outline:none;padding:6px 12px;font-size:.82rem;font-weight:600;transition:border-color .2s}.chat-status-select:focus{border-color:#06c755}.chat-list::-webkit-scrollbar{width:6px}.chat-list::-webkit-scrollbar-thumb{background:#0000001a;border-radius:4px}.chat-item{cursor:pointer;border-bottom:1px solid #f9fafb;align-items:center;padding:16px 20px;transition:background .2s;display:flex;position:relative}.chat-item:hover{background:#f9fafb}.chat-item.active{background:var(--nav-active-bg)}.chat-item.active:before{content:"";background:var(--primary);width:4px;position:absolute;top:0;bottom:0;left:0}.avatar{background:#e5e7eb;border-radius:50%;flex-shrink:0;width:50px;height:50px;margin-right:15px;overflow:hidden}.avatar img{object-fit:cover;width:100%;height:100%}.chat-item-info{flex-direction:column;flex:1;gap:4px;display:flex;overflow:hidden}.chat-item-name{color:var(--text-main);white-space:nowrap;text-overflow:ellipsis;font-size:1.05rem;font-weight:600;overflow:hidden}.chat-item-time{color:var(--text-muted);font-size:.8rem}.main-chat{background:var(--bg-chat);flex-direction:column;flex:1;display:flex;position:relative}.chat-header{border-bottom:1px solid var(--border-color);background:#fff;justify-content:space-between;align-items:center;height:70px;padding:0 24px;display:flex}.chat-header-user{align-items:center;gap:12px;display:flex}.chat-header-avatar{background:#e5e7eb;border-radius:50%;width:40px;height:40px;overflow:hidden}.chat-header-avatar img{object-fit:cover;width:100%;height:100%}.chat-title{color:var(--text-main);font-size:1.1rem;font-weight:600}.chat-header-actions{align-items:center;gap:16px;display:flex}.header-action-btn{cursor:pointer;color:var(--nav-icon);background:0 0;border:none;justify-content:center;align-items:center;display:flex}.header-action-btn:hover{color:var(--primary)}.tags-container{align-items:center;gap:6px;display:flex}.tag-badge{color:#fff;cursor:pointer;border-radius:6px;align-items:center;gap:4px;padding:3px 8px;font-size:.7rem;font-weight:500;display:inline-flex}.tag-action-btn{color:#4b5563;cursor:pointer;background:#f3f4f6;border:none;border-radius:6px;align-items:center;gap:4px;padding:3px 8px;font-size:.7rem;font-weight:500;display:inline-flex}.tag-action-btn:hover{background:#e5e7eb}.messages-container{flex-direction:column;flex:1;gap:16px;padding:24px 40px;display:flex;overflow-y:auto}.message{flex-direction:column;max-width:65%;animation:.2s fadeIn;display:flex}@keyframes fadeIn{0%{opacity:0;transform:translateY(5px)}to{opacity:1;transform:translateY(0)}}.message.inbound{align-self:flex-start}.message.outbound{align-self:flex-end}.message-bubble{border-radius:18px;padding:12px 18px;font-size:.95rem;line-height:1.5}.message.inbound .message-bubble{color:var(--text-main);background:#fff;box-shadow:0 1px 2px #0000000d}.message.outbound .message-bubble{background:var(--primary);color:#fff}.message-time{color:var(--text-muted);margin-top:6px;font-size:.75rem}.message.inbound .message-time{align-self:flex-start;margin-left:4px}.message.outbound .message-time{align-self:flex-end;margin-right:4px}.chat-input-area{border-top:1px solid var(--border-color);background:#fff;align-items:center;gap:16px;padding:16px 24px;display:flex}.chat-input-wrapper{background:#f3f4f6;border-radius:24px;flex:1;align-items:center;padding:6px 16px;display:flex}.presets-btn{cursor:pointer;color:var(--nav-icon);background:0 0;border:none;align-items:center;padding:8px;display:flex}.presets-btn:hover{color:var(--primary)}.chat-input{color:var(--text-main);background:0 0;border:none;outline:none;flex:1;padding:8px 12px;font-size:1rem}.send-btn{background:var(--primary);color:#fff;cursor:pointer;border:none;border-radius:50%;justify-content:center;align-items:center;width:40px;height:40px;transition:background .2s;display:flex}.send-btn:hover{background:var(--primary-hover)}.modal-overlay{-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);z-index:1000;background:#0006;justify-content:center;align-items:center;animation:.2s fadeIn;display:flex;position:fixed;inset:0}.modal{background:#fff;border-radius:12px;width:500px;max-height:90vh;padding:32px;overflow-y:auto;box-shadow:0 20px 40px #0000001a}.modal h2{color:var(--text-main);margin-bottom:24px;font-size:1.3rem;font-weight:600}.form-group{margin-bottom:20px}.form-group label{color:var(--text-muted);margin-bottom:8px;font-size:.9rem;font-weight:500;display:block}.form-group input,.form-group select,.form-group textarea{border:1px solid var(--border-color);background:#f9fafb;border-radius:8px;outline:none;width:100%;padding:12px 16px;font-size:1rem;transition:border .2s}.form-group input:focus,.form-group select:focus,.form-group textarea:focus{border-color:var(--primary);background:#fff}.modal-actions{justify-content:flex-end;gap:12px;margin-top:30px;display:flex}.btn-secondary{border:1px solid var(--border-color);color:var(--text-main);cursor:pointer;background:#fff;border-radius:8px;padding:10px 20px;font-weight:500;transition:background .2s}.btn-secondary:hover{background:#f3f4f6}.btn-primary{background:var(--primary);color:#fff;cursor:pointer;border:none;border-radius:8px;padding:10px 20px;font-weight:500;transition:background .2s}.btn-primary:hover{background:var(--primary-hover)}.empty-state{color:#9ca3af;background:var(--bg-main);flex-direction:column;flex:1;justify-content:center;align-items:center;font-size:1.1rem;font-weight:500;display:flex}.empty-state-icon{color:#e5e7eb;margin-bottom:16px}.presets-popup{border:1px solid var(--border-color);z-index:100;background:#fff;border-radius:12px;flex-direction:column;width:280px;max-height:350px;display:flex;position:absolute;bottom:60px;left:0;overflow-y:auto;box-shadow:0 10px 25px #0000001a}.preset-item{cursor:pointer;color:var(--text-main);border-bottom:1px solid #f3f4f6;align-items:center;gap:10px;padding:12px 16px;font-size:.95rem;transition:background .2s;display:flex}.preset-item:hover{background:#f9fafb}.preset-manage-btn{text-align:center;color:var(--primary);cursor:pointer;background:#f9fafb;justify-content:center;align-items:center;padding:12px 16px;font-weight:600;display:flex}.preset-manage-btn:hover{background:#f3f4f6}.toast-container{z-index:9999;flex-direction:column;gap:12px;display:flex;position:fixed;top:24px;right:24px}.toast{border-left:4px solid var(--primary);background:#fff;border-radius:8px;justify-content:space-between;align-items:center;min-width:300px;padding:16px 20px;animation:.3s slideInRight,.3s 2.7s forwards fadeOut;display:flex;box-shadow:0 10px 25px #0000001a}.toast.error{border-left-color:#ef4444}.toast.success{border-left-color:#22c55e}.toast-content{color:var(--text-main);font-size:.95rem;font-weight:500}.toast-close{color:#9ca3af;cursor:pointer;background:0 0;border:none}.toast-close:hover{color:#4b5563}@keyframes slideInRight{0%{opacity:0;transform:translate(100%)}to{opacity:1;transform:translate(0)}}@keyframes fadeOut{0%{opacity:1}to{opacity:0}}.modal.small-modal{text-align:center;width:400px;padding:40px 32px}.modal.small-modal h2{margin-bottom:12px}.modal.small-modal p{color:var(--text-muted);margin-bottom:24px}.modal.small-modal .modal-actions{justify-content:center}.selection-list{text-align:left;flex-direction:column;gap:8px;max-height:250px;margin-bottom:20px;display:flex;overflow-y:auto}.selection-item{border:1px solid var(--border-color);cursor:pointer;border-radius:8px;justify-content:space-between;align-items:center;padding:12px 16px;transition:all .2s;display:flex}.selection-item:hover{border-color:var(--primary);background:#f0f6ff}.notes-panel{border-left:1px solid var(--border-color);background:#fff;flex-direction:column;width:300px;animation:.3s cubic-bezier(.16,1,.3,1) slideLeft;display:flex}@keyframes slideLeft{0%{opacity:0;margin-right:-300px}to{opacity:1;margin-right:0}}.notes-header{border-bottom:1px solid var(--border-color);justify-content:space-between;align-items:center;height:70px;padding:0 20px;display:flex}.notes-header h3{color:var(--text-main);font-size:1.05rem;font-weight:600}.notes-body{flex-direction:column;flex:1;padding:20px;display:flex}.notes-textarea{border:1px solid var(--border-color);resize:none;background:#f9fafb;border-radius:8px;outline:none;flex:1;padding:12px;font-family:inherit;font-size:.95rem;transition:border .2s}.notes-textarea:focus{border-color:var(--primary);background:#fff}.sticker-popup{border:1px solid var(--border-color);z-index:100;background:#fff;border-radius:12px;grid-template-columns:repeat(4,1fr);gap:8px;width:300px;max-height:250px;padding:12px;display:grid;position:absolute;bottom:80px;left:20px;overflow-y:auto;box-shadow:0 10px 25px #0000001a}.sticker-item{cursor:pointer;border-radius:8px;justify-content:center;align-items:center;padding:4px;transition:background .2s;display:flex}.sticker-item:hover{background:#f3f4f6}.sticker-item img{width:100%;height:auto}.drag-overlay{z-index:50;border:4px dashed var(--primary);-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);background:#ffffffe6;border-radius:12px;flex-direction:column;justify-content:center;align-items:center;margin:10px;display:flex;position:absolute;inset:0}.drag-overlay h2{color:var(--primary);font-size:1.5rem;font-weight:600}.liff-container{background:#f4f6f8;min-height:100vh;padding-bottom:80px;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif}.liff-header{color:#fff;text-align:center;z-index:10;background:#06c755;padding:15px 20px;position:sticky;top:0;box-shadow:0 2px 4px #0000001a}.liff-header h1{margin:0;font-size:1.2rem;font-weight:600}.liff-main{padding:15px}.product-grid{grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:15px;display:grid}.product-card{background:#fff;border-radius:12px;flex-direction:column;display:flex;overflow:hidden;box-shadow:0 4px 6px #0000000d}.product-image{background-color:#eee;background-position:50%;background-size:cover;width:100%;padding-top:100%}.product-info{flex-direction:column;flex:1;padding:12px;display:flex}.product-info h3{color:#333;margin:0 0 5px;font-size:.95rem}.price{color:#06c755;margin:0 0 10px;font-size:.9rem;font-weight:700}.add-btn{color:#fff;cursor:pointer;background:#06c755;border:none;border-radius:6px;margin-top:auto;padding:8px;font-weight:600;transition:opacity .2s}.add-btn:active{opacity:.8}.liff-cart-bar{z-index:20;background:#fff;justify-content:space-between;align-items:center;padding:15px 20px;display:flex;position:fixed;bottom:0;left:0;right:0;box-shadow:0 -2px 10px #0000000d}.cart-summary{flex-direction:column;display:flex}.cart-summary span{color:#666;font-size:.85rem}.cart-summary .cart-total{color:#000;font-size:1.1rem;font-weight:700}.checkout-btn{color:#fff;cursor:pointer;background:#06c755;border:none;border-radius:20px;padding:10px 20px;font-size:1rem;font-weight:700}