@import "https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600&display=swap";:root{--wa-bg:#0b141a;--wa-panel:#111b21;--wa-header:#202c33;--wa-bubble-recv:#202c33;--wa-bubble-sent:#005c4b;--wa-text:#e9edef;--wa-text-sec:#8696a0;--wa-date-chip:#182229;--wa-green:#00a884;--wa-teal:#008069;--wa-tick:#53bdeb;--wa-link:#53bdeb;--glass-border:#ffffff12;--app-bg:linear-gradient(135deg,#0a1628 0%,#0d1f2d 100%)}*,:before,:after{box-sizing:border-box;margin:0;padding:0}html,body{height:100%;overflow:hidden}body{-webkit-text-size-adjust:100%;-webkit-tap-highlight-color:transparent;background:var(--app-bg);color:var(--wa-text);overscroll-behavior:none;justify-content:center;align-items:center;min-height:100dvh;font-family:Inter,Segoe UI,sans-serif;display:flex}#root{justify-content:center;align-items:center;width:100%;height:100dvh;padding:clamp(0px,2vw,20px);display:flex}.app-container{background:var(--wa-panel);border:1px solid var(--glass-border);border-radius:clamp(0px,2vw,16px);flex-direction:column;width:100%;max-width:960px;height:100%;max-height:960px;display:flex;position:relative;overflow:hidden;box-shadow:0 32px 64px #0009}.app-header{border-bottom:1px solid var(--glass-border);background:var(--wa-header);flex-shrink:0;justify-content:space-between;align-items:center;padding:14px 20px;display:flex}.app-header-left{align-items:center;gap:10px;display:flex}.header-logo{font-size:1.35rem;line-height:1}.app-header h1{background:linear-gradient(90deg,#00a884,#53bdeb);-webkit-text-fill-color:transparent;-webkit-background-clip:text;font-size:clamp(.9rem,2.5vw,1.05rem);font-weight:600}.app-main{flex-direction:column;flex:1;min-height:0;display:flex;overflow:hidden}.upload-container{overscroll-behavior:contain;-webkit-overflow-scrolling:touch;background:var(--wa-bg);flex-direction:column;flex:1;align-items:center;gap:20px;padding:clamp(20px,4vw,40px) clamp(16px,4vw,28px);display:flex;overflow-y:auto}.dropzone{text-align:center;background:#0003;border:2px dashed #ffffff1f;border-radius:18px;width:100%;max-width:500px;padding:clamp(32px,6vw,52px) clamp(20px,5vw,36px);transition:all .3s}.dropzone.dragging{border-color:var(--wa-green);background:#00a8840f;box-shadow:0 0 28px #00a88433}.upload-icon-wrap{justify-content:center;margin-bottom:18px;display:flex}.upload-icon{width:52px;height:52px;color:var(--wa-green);opacity:.85;transition:transform .3s}.dropzone:hover .upload-icon{transform:translateY(-4px)}.dropzone h2{margin-bottom:8px;font-size:clamp(1.1rem,3vw,1.35rem);font-weight:600}.dropzone p{color:var(--wa-text-sec);margin-bottom:6px;font-size:clamp(.82rem,2.2vw,.9rem)}.or-text{letter-spacing:2px;font-size:.72rem;color:#fff3!important;margin:16px 0!important}.btn-row{flex-wrap:wrap;justify-content:center;gap:10px;display:flex}.file-label{background:var(--wa-teal);color:#fff;cursor:pointer;touch-action:manipulation;-webkit-tap-highlight-color:transparent;border-radius:10px;align-items:center;gap:7px;padding:clamp(10px,2vw,11px) clamp(16px,3vw,22px);font-size:clamp(.82rem,2.2vw,.88rem);font-weight:500;transition:all .2s;display:inline-flex}.file-label:active{filter:brightness(.9);transform:scale(.97)}.file-label.secondary{border:1px solid var(--glass-border);background:#ffffff0f}.file-input{display:none}.loading-indicator{color:var(--wa-text-sec);border:1px solid var(--glass-border);background:#ffffff0a;border-radius:10px;align-items:center;gap:12px;width:100%;max-width:500px;padding:12px 18px;font-size:.88rem;animation:.3s fadeIn;display:flex}.spinner{border:2px solid #ffffff1f;border-top-color:var(--wa-green);border-radius:50%;flex-shrink:0;width:18px;height:18px;animation:.8s linear infinite spin}@keyframes spin{to{transform:rotate(360deg)}}.error-message{color:#fca5a5;background:#dc262614;border:1px solid #dc262640;border-radius:10px;width:100%;max-width:500px;padding:12px 18px;font-size:.88rem;animation:.3s fadeIn}.instructions{border:1px solid var(--glass-border);background:#0000002e;border-radius:14px;width:100%;max-width:500px;padding:20px 22px}.instructions h3{margin-bottom:12px;font-size:.92rem}.instructions ol{color:var(--wa-text-sec);padding-left:18px;font-size:.88rem;line-height:1.75}.chat-view{background-color:var(--wa-bg);flex-direction:column;flex:1;min-height:0;display:flex;position:relative;overflow:hidden}.wa-header{background:var(--wa-header);border-bottom:1px solid #ffffff0d;flex-shrink:0;align-items:center;gap:12px;min-height:58px;padding:10px 16px;display:flex}.wa-avatar{background:linear-gradient(135deg,var(--wa-teal),var(--wa-green));color:#fff;border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;width:38px;height:38px;font-size:.95rem;font-weight:700;display:flex}.wa-header-info{flex:1;min-width:0}.wa-contact-name{white-space:nowrap;text-overflow:ellipsis;font-size:clamp(.9rem,2.5vw,1rem);font-weight:600;overflow:hidden}.wa-contact-sub{color:var(--wa-text-sec);margin-top:1px;font-size:.72rem}.wa-back-btn{width:36px;height:36px;color:var(--wa-text);cursor:pointer;touch-action:manipulation;background:0 0;border:none;border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;margin-left:-6px;margin-right:-4px;display:flex}.wa-back-btn:hover,.wa-back-btn:active{background:#ffffff14}.wa-user-btn{max-width:45%;color:var(--wa-text);cursor:pointer;touch-action:manipulation;background:#ffffff0f;border:1px solid #ffffff1f;border-radius:18px;flex-shrink:0;align-items:center;gap:4px;padding:7px 12px;font-family:inherit;font-size:.8rem;transition:background .2s;display:flex}.wa-user-btn:hover,.wa-user-btn:active{background:#ffffff1f}.wa-user-label{color:var(--wa-text-sec)}.wa-user-name{text-overflow:ellipsis;white-space:nowrap;font-weight:500;overflow:hidden}.wa-icon-btn{width:38px;height:38px;color:var(--wa-text-sec);cursor:pointer;touch-action:manipulation;background:0 0;border:none;border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;transition:background .2s,color .2s;display:flex}.wa-icon-btn:hover,.wa-icon-btn:active{color:var(--wa-text);background:#ffffff14}.wa-icon-btn.active{color:var(--wa-green)}.range-bar{background:#00a8841f;border-bottom:1px solid #00a88440;flex-shrink:0;justify-content:space-between;align-items:center;gap:8px;padding:6px 10px 6px 16px;display:flex}.range-bar-label{text-align:left;min-width:0;color:var(--wa-text);white-space:nowrap;text-overflow:ellipsis;cursor:pointer;background:0 0;border:none;flex:1;padding:4px 0;font-family:inherit;font-size:.8rem;overflow:hidden}.range-bar-clear{width:30px;height:30px;color:var(--wa-text-sec);cursor:pointer;touch-action:manipulation;background:#ffffff0f;border:none;border-radius:50%;flex-shrink:0;font-size:.8rem}.range-bar-clear:hover,.range-bar-clear:active{color:var(--wa-text);background:#ffffff1f}.chat-empty{color:var(--wa-text-sec);text-align:center;pointer-events:none;flex-direction:column;align-items:center;gap:14px;padding:40px 20px;font-size:.9rem;display:flex;position:absolute;inset:120px 0 0}.chat-empty button{pointer-events:auto;width:auto;padding:10px 22px}.chat-messages-container{-webkit-overflow-scrolling:touch;overscroll-behavior:contain;overflow-anchor:none;will-change:scroll-position;padding:8px 12px 20px;padding-bottom:max(20px, env(safe-area-inset-bottom));flex:1;overflow:hidden auto;transform:translateZ(0)}.chat-messages-container::-webkit-scrollbar{width:4px}.chat-messages-container::-webkit-scrollbar-track{background:0 0}.chat-messages-container::-webkit-scrollbar-thumb{background:#ffffff14;border-radius:10px}.page-nav{flex-direction:column;align-items:center;gap:6px;padding:12px 0;display:flex}.page-nav-btn{background:var(--wa-header);min-height:44px;color:var(--wa-green);cursor:pointer;touch-action:manipulation;border:1px solid #ffffff1f;border-radius:22px;padding:10px 22px;font-family:inherit;font-size:.95rem;font-weight:600}.page-nav-btn:active{filter:brightness(1.2)}.page-nav-label{color:var(--wa-text-sec);font-size:.72rem}.jump-bottom-btn{right:16px;bottom:calc(16px + env(safe-area-inset-bottom));background:var(--wa-header);width:42px;height:42px;color:var(--wa-text-sec);cursor:pointer;z-index:5;touch-action:manipulation;border:none;border-radius:50%;justify-content:center;align-items:center;animation:.2s fadeIn;display:flex;position:absolute;box-shadow:0 2px 8px #00000080}.jump-bottom-btn:active{transform:scale(.94)}.chat-messages-scroll-area{flex-direction:column;width:100%;max-width:800px;margin:0 auto;display:flex}.date-separator{z-index:2;pointer-events:none;justify-content:center;width:100%;margin:16px 0 10px;display:flex;position:sticky;top:8px}.date-separator-label{background:var(--wa-date-chip);color:var(--wa-text-sec);letter-spacing:.3px;-webkit-user-select:none;user-select:none;border:1px solid #ffffff0f;border-radius:8px;padding:5px 14px;font-size:.72rem;font-weight:500;box-shadow:0 1px 4px #0000004d}.system-message{justify-content:center;width:100%;margin:6px 0;display:flex}.system-text{color:var(--wa-text-sec);text-align:center;background:#111b21d9;border:1px solid #ffffff0d;border-radius:8px;max-width:80%;padding:5px 14px;font-size:.7rem}.message-wrapper{width:100%;margin-bottom:2px;display:flex}.message-wrapper.tail{margin-bottom:8px}.message-wrapper.sent{justify-content:flex-end}.message-wrapper.received{justify-content:flex-start}.message-bubble{word-wrap:break-word;overflow-wrap:anywhere;border-radius:8px;flex-direction:column;max-width:min(72%,500px);padding:7px 10px 4px;display:flex;position:relative;box-shadow:0 1px 2px #00000040}.sent .message-bubble{background:var(--wa-bubble-sent);border-radius:8px 8px 0}.sent.tail .message-bubble{border-bottom-right-radius:0}.sent.tail .message-bubble:after{content:"";border:8px solid #0000;border-bottom-color:var(--wa-bubble-sent);border-right:none;position:absolute;bottom:0;right:-8px}.received .message-bubble{background:var(--wa-bubble-recv);border-radius:8px 8px 8px 0}.received.tail .message-bubble{border-bottom-left-radius:0}.received.tail .message-bubble:after{content:"";border:8px solid #0000;border-bottom-color:var(--wa-bubble-recv);border-left:none;position:absolute;bottom:0;left:-8px}.sender-name{margin-bottom:3px;font-size:.78rem;font-weight:600}.message-text{color:var(--wa-text);white-space:pre-wrap;padding-right:50px;font-size:clamp(.85rem,2.5vw,.9rem);line-height:1.46}.message-meta{justify-content:flex-end;align-items:center;gap:3px;margin-top:-14px;margin-bottom:2px;display:flex}.message-bubble:has(.attachment) .message-meta{margin-top:3px}.message-bubble:has(.attachment) .message-text{padding-right:0}.message-time{color:#ffffff73;white-space:nowrap;font-size:.68rem}.tick-icon{color:var(--wa-tick);letter-spacing:-1px;font-size:.68rem}.attachment{margin-bottom:3px}.attachment-image .chat-image{object-fit:cover;cursor:zoom-in;border-radius:6px;width:100%;max-width:100%;max-height:280px;transition:opacity .15s;display:block}.attachment-image .chat-image:hover{opacity:.9}.lightbox{z-index:200;touch-action:pinch-zoom;background:#000000f2;justify-content:center;align-items:center;animation:.18s fadeIn;display:flex;position:fixed;inset:0}.lightbox-media{object-fit:contain;-webkit-user-select:none;user-select:none;-webkit-user-drag:none;max-width:100%;max-height:calc(100dvh - 140px)}.lightbox-top{padding:max(10px, env(safe-area-inset-top)) max(12px, env(safe-area-inset-right)) 10px max(16px, 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h2{margin-bottom:8px}.upload-page-actions{margin-top:18px}.upload-card{background:var(--wa-panel);border:1px solid var(--glass-border);border-radius:14px;flex-direction:column;gap:16px;width:100%;max-width:500px;padding:24px;display:flex}.upload-source{color:var(--wa-text-sec);overflow-wrap:anywhere;font-size:.88rem}.upload-field{color:var(--wa-text-sec);flex-direction:column;gap:6px;font-size:.88rem;display:flex}.upload-field input,.upload-field select{width:100%;font:inherit;color:var(--wa-text);background:var(--wa-bg);border:1px solid var(--glass-border);border-radius:8px;padding:10px 12px;font-size:.95rem}.upload-field input:focus,.upload-field select:focus{border-color:var(--wa-green);outline:none}.upload-field input:disabled,.upload-field select:disabled{opacity:.6}.upload-summary{color:var(--wa-text-sec);flex-wrap:wrap;gap:8px 20px;font-size:.88rem;list-style:none;display:flex}.upload-summary 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