:root{color-scheme:light;--bg:#f7f7f7;--surface:#fff;--muted:#777;--text:#171717;--line:#e7e7e7;--soft:#f1f1f1;--strong:#171717;--inverse:#fff;--green:#18794e;--green-bg:#e9f6ee;--red:#c33232;--red-bg:#fff1f1;--amber:#9a6414;--amber-bg:#fff5de;--radius:16px;--app-height:100dvh;--tg-safe-top:0px;--tg-safe-bottom:0px;font-family:Inter,-apple-system,BlinkMacSystemFont,"Segoe UI","Microsoft YaHei",sans-serif}
:root[data-theme=dark]{color-scheme:dark;--bg:#101010;--surface:#181818;--muted:#a0a0a0;--text:#f2f2f2;--line:#303030;--soft:#232323;--strong:#f3f3f3;--inverse:#111;--green:#87d4ad;--green-bg:#183429;--red:#f59292;--red-bg:#382121;--amber:#e3bc75;--amber-bg:#362b18}
*{box-sizing:border-box}html,body{margin:0;min-width:0;min-height:100%;background:var(--bg);color:var(--text)}body{font-size:14px;line-height:1.5}button,input,textarea,select{font:inherit}button,a,input,textarea,select{-webkit-tap-highlight-color:transparent}button{cursor:pointer;touch-action:manipulation}button:disabled{opacity:.4;cursor:not-allowed}button:focus-visible,a:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible{outline:2px solid var(--text);outline-offset:3px}button{border:0}button,input,select,textarea{transition:background .15s,border-color .15s,opacity .15s}a{color:inherit}h1,h2,p{margin:0}h1{font-size:23px;letter-spacing:-.5px}h2{font-size:16px}input,textarea,select{width:100%;color:var(--text);background:var(--soft);border:1px solid var(--line);border-radius:10px;padding:11px 12px;min-width:0}input,textarea{font-size:16px}textarea{resize:none;line-height:1.55}label{display:block;font-size:13px;font-weight:600}label input{margin-top:7px}input::placeholder,textarea::placeholder{color:var(--muted)}[hidden]{display:none!important}.muted{color:var(--muted);font-size:12px}.eyebrow{color:var(--muted);font-size:10px;font-weight:600;letter-spacing:1.6px;margin-bottom:6px}.primary,.secondary,.icon-button,.text-button{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:42px;border-radius:11px;font-weight:600}.primary{background:var(--strong);color:var(--inverse);padding:10px 18px}.secondary{background:var(--surface);color:var(--text);padding:9px 12px;border:1px solid var(--line)}.compact{min-height:34px;font-size:12px;padding:6px 10px}.icon-button{width:40px;background:transparent;color:var(--text);font-size:21px;flex:none}.text-button{background:transparent;color:var(--muted);font-size:12px;padding:6px 8px;min-height:34px}.full{width:100%}.error,.inline-error{color:var(--red);font-size:12px;line-height:1.6;overflow-wrap:anywhere}.inline-error{padding:8px 10px;background:var(--red-bg);border-radius:8px}.brand-mark{display:grid;place-items:center;width:54px;height:54px;background:var(--strong);color:var(--inverse);font-size:30px;font-weight:700;border-radius:17px}.brand-mark.small{width:35px;height:35px;border-radius:11px;font-size:22px}.login-shell{min-height:100dvh;display:grid;place-items:center;padding:28px 20px}.login-card{max-width:380px;width:100%;background:var(--surface);border:1px solid var(--line);border-radius:24px;padding:30px 25px}.login-card .brand-mark{margin-bottom:25px}.login-card h1{font-size:24px;margin-bottom:12px}.login-card .error{margin:12px 0}.login-card form{display:grid;gap:18px}.login-card .login-foot{border-top:1px solid var(--line);padding-top:20px;margin-top:24px;color:var(--muted);font-size:12px}.workspace{height:var(--app-height);max-width:1280px;margin:auto;display:grid;grid-template-columns:350px minmax(0,1fr);grid-template-rows:auto minmax(0,1fr);overflow:hidden;background:var(--surface);border-left:1px solid var(--line);border-right:1px solid var(--line)}.topbar{grid-column:1/-1;display:flex;justify-content:space-between;align-items:center;gap:8px;padding:calc(12px + max(env(safe-area-inset-top),var(--tg-safe-top))) 18px 12px;border-bottom:1px solid var(--line)}.brand{display:flex;align-items:center;gap:10px;min-width:0}.brand strong{font-size:15px}.brand div{display:flex;flex-direction:column}.brand div>span{font-size:10px;color:var(--muted)}.account{display:flex;align-items:center;gap:2px}.account>span{max-width:110px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;font-size:12px;margin-right:5px}.inbox{display:flex;flex-direction:column;min-height:0;border-right:1px solid var(--line)}.inbox-heading{display:flex;align-items:center;justify-content:space-between;gap:8px;padding:22px 18px 16px}.inbox-heading h1{font-size:21px}.badge{display:inline-grid;place-items:center;min-width:19px;height:19px;padding:0 5px;background:#d84848;color:white;border-radius:8px;font-size:10px;vertical-align:middle}.tabs{display:flex;gap:3px;padding:0 14px 12px}.tabs button{flex:1;white-space:nowrap;min-height:36px;background:transparent;color:var(--muted);border-radius:10px;font-size:12px;padding:6px}.tabs button[aria-selected=true]{background:var(--strong);color:var(--inverse);font-weight:600}.search-row{display:flex;gap:8px;padding:0 16px 16px}.search-row input{width:0;flex:1;font-size:13px;min-height:38px;padding:8px 10px}.search-row select{width:100px;font-size:12px;padding:8px}.inbox>.inline-error{margin:0 16px 10px}.conversation-list{flex:1;min-height:0;overflow:auto;padding:0 8px}.conversation-item{width:100%;display:flex;text-align:left;align-items:flex-start;gap:11px;background:transparent;color:var(--text);padding:15px 10px;border-radius:12px;border-bottom:1px solid var(--line)}.conversation-item.selected{background:var(--soft);border-bottom-color:transparent}.conversation-avatar{display:grid;place-items:center;flex:none;width:39px;height:39px;background:var(--soft);border:1px solid var(--line);border-radius:13px;font-size:14px;position:relative}.has-unread:after{content:"";position:absolute;right:-2px;top:-2px;width:8px;height:8px;background:#d84848;border:2px solid var(--surface);border-radius:50%}.conversation-main{min-width:0;flex:1}.conversation-top{display:flex;align-items:center;justify-content:space-between;gap:7px}.conversation-top strong{font-size:13px;overflow:hidden;white-space:nowrap;text-overflow:ellipsis}.conversation-top time{flex:none;font-size:10px;color:var(--muted)}.conversation-preview{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;color:var(--muted);font-size:12px;line-height:1.55;margin-top:5px;overflow-wrap:anywhere}.conversation-bottom{display:flex;align-items:center;justify-content:space-between;gap:8px;margin-top:7px}.conversation-bottom small{font-size:10px;color:var(--muted)}.tiny-tag{color:var(--green);background:var(--green-bg);font-size:9px;border-radius:4px;padding:2px 5px;margin-right:5px}.priority-high{color:var(--amber)}.inbox-footer{display:flex;justify-content:space-between;padding:12px 18px calc(12px + max(env(safe-area-inset-bottom),var(--tg-safe-bottom)));font-size:10px;color:var(--muted);border-top:1px solid var(--line)}.empty{text-align:center;padding:35px 20px;color:var(--muted);font-size:13px}.chat{min-width:0;min-height:0;position:relative}.chat-empty{height:100%;display:flex;flex-direction:column;justify-content:center;align-items:center;color:var(--muted);padding:24px;text-align:center;gap:10px}.chat-empty h2{color:var(--text)}.empty-mark{font-size:38px;color:var(--text);margin-bottom:10px}.chat-content{display:flex;flex-direction:column;height:100%;min-height:0}.chat-heading{display:flex;align-items:center;gap:9px;padding:12px 16px;border-bottom:1px solid var(--line)}.chat-heading>div{min-width:0;flex:1}.chat-heading h2{white-space:nowrap;text-overflow:ellipsis;overflow:hidden;font-size:14px}.chat-heading p{font-size:10px;color:var(--muted);margin-top:3px}.chat-heading #back{display:none}.actions{display:flex;align-items:center;flex-wrap:wrap;gap:7px;padding:9px 16px;border-bottom:1px solid var(--line)}.status-pill{font-size:10px;padding:4px 8px;border-radius:6px;color:var(--green);background:var(--green-bg);margin-right:auto}.status-pill.human{color:var(--amber);background:var(--amber-bg)}.status-pill.closed{color:var(--muted);background:var(--soft)}.visitor-details{max-height:42%;overflow:auto;flex:none;background:var(--surface);padding:16px;border-bottom:1px solid var(--line)}.profile-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.profile-cell{display:flex;flex-direction:column;gap:4px;min-width:0}.profile-cell.wide{grid-column:1/-1}.profile-cell span{font-size:10px;color:var(--muted)}.profile-cell strong{font-size:12px;font-weight:500;overflow-wrap:anywhere}.visitor-details details{margin-top:17px;border-top:1px solid var(--line);padding-top:12px}.visitor-details summary{font-size:12px;font-weight:600;cursor:pointer}.event-list{font-size:11px;margin-top:10px}.event-item{padding:9px 0;border-bottom:1px solid var(--line)}.event-item strong{display:block;font-size:11px;margin-bottom:4px}.event-item p{color:var(--muted);overflow-wrap:anywhere}.messages{min-height:0;flex:1;overflow:auto;overscroll-behavior:contain;padding:18px 16px;background:var(--bg)}.time-divider{text-align:center;color:var(--muted);font-size:10px;margin:5px 0 20px}.message-row{display:flex;gap:8px;align-items:flex-end;margin-bottom:18px}.message-row.admin{flex-direction:row-reverse}.avatar{width:29px;height:29px;border-radius:50%;display:grid;place-items:center;flex:none;overflow:hidden;background:var(--soft);border:1px solid var(--line);font-size:10px}.avatar img{width:100%;height:100%;object-fit:cover}.message-content{min-width:0;max-width:83%}.message-author{font-size:10px;color:var(--muted);margin:0 3px 6px}.admin .message-author{text-align:right}.message-author .tiny-tag{margin-left:5px;margin-right:0}.bubble{border:1px solid var(--line);background:var(--surface);border-radius:15px;padding:10px 12px;font-size:14px;line-height:1.7;overflow-wrap:anywhere;word-break:break-word;box-shadow:0 1px 2px #00000004}.admin .bubble{background:var(--soft)}.bubble .message-text{white-space:pre-wrap}.bubble .message-text:empty{display:none}.bubble a{text-decoration:underline;text-underline-offset:3px}.bubble img,.bubble video{max-width:100%;max-height:270px;display:block;border-radius:9px;margin-bottom:6px;object-fit:contain}.bubble img{cursor:zoom-in}.media-loading{font-size:11px;color:var(--muted)}.media-retry{display:block;font-size:11px;margin:4px 0}.closed-notice{padding:13px;text-align:center;color:var(--muted);font-size:12px;border-top:1px solid var(--line)}.composer{padding:11px 14px calc(12px + max(env(safe-area-inset-bottom),var(--tg-safe-bottom)));border-top:1px solid var(--line);flex:none;min-width:0;background:var(--surface)}.composer-top,.composer-bottom{display:flex;align-items:center;justify-content:space-between;gap:8px}.composer-top{margin-bottom:9px}.composer-top .muted{font-size:10px}.composer textarea{border-color:transparent;background:var(--bg);border-radius:12px;padding:10px 11px;display:block}.composer-bottom{margin-top:8px}.composer-bottom>div{display:flex;align-items:center;min-width:0}.composer-bottom .muted{font-size:10px}.composer-bottom .primary{font-size:13px;min-height:38px;padding:8px 17px;flex:none}.quick-list{display:grid;gap:5px;max-height:150px;overflow:auto;margin-bottom:10px}.quick-list button{color:var(--text);font-size:12px;padding:9px;text-align:left;background:var(--soft);border-radius:8px;white-space:pre-wrap;overflow-wrap:anywhere}.attachment-preview{display:flex;align-items:center;gap:9px;padding:8px;border:1px solid var(--line);background:var(--bg);border-radius:12px;margin-bottom:8px}.attachment-preview img{width:60px;height:50px;object-fit:contain;border-radius:6px;flex:none}.attachment-preview video{width:90px;height:58px;object-fit:contain;border-radius:6px;flex:none}.attachment-preview>div{flex:1;min-width:0}.attachment-preview strong{display:block;font-size:12px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.attachment-preview p{font-size:10px;color:var(--muted);margin-top:3px}.attachment-preview .icon-button{width:30px;min-height:32px;font-size:18px}.composer .inline-error{margin-bottom:8px}.toast{position:fixed;z-index:100;left:50%;bottom:calc(25px + env(safe-area-inset-bottom));transform:translateX(-50%);max-width:calc(100% - 32px);width:max-content;box-shadow:0 5px 30px #0002;background:var(--strong);color:var(--inverse);padding:11px 15px;border-radius:12px;font-size:12px;overflow-wrap:anywhere}.toast.error{background:#a82929;color:white}
@media(max-width:760px){.workspace{border:0;grid-template-columns:minmax(0,1fr)}.topbar{padding-right:12px;padding-left:14px}.inbox{border:0}.chat{display:none}.workspace.show-conversation .inbox{display:none}.workspace.show-conversation .chat{display:block}.chat-heading #back{display:inline-flex;width:25px;font-size:28px}.chat-heading{padding:10px 12px;gap:7px}.chat-heading h2{font-size:13px}.account>span{max-width:78px}.actions{padding:9px 12px;gap:6px}.messages{padding:15px 12px}.message-content{max-width:82%}.bubble{font-size:14px;padding:9px 11px}.composer{padding-left:12px;padding-right:12px}.chat-heading>.secondary{padding:6px 9px}.inbox-heading{padding-top:20px}.profile-grid{gap:12px}.visitor-details{padding:13px}.status-pill{padding:4px 6px;font-size:10px}.actions .compact{padding:6px 8px}.composer-top .muted{max-width:50%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}}
@media(max-width:350px){.topbar .account>span{display:none}.actions{gap:5px}.actions .compact{font-size:11px}.actions .text-button{font-size:11px;padding:5px}.composer-bottom .muted{font-size:9px}.composer-bottom .icon-button{width:32px}.composer-bottom .primary{padding:8px 13px}.tabs button{font-size:11px}.search-row select{width:93px}.message-content{max-width:80%}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}
.image-dialog{padding:42px 12px 12px;border:1px solid var(--line);border-radius:16px;background:var(--surface);color:var(--text);max-width:calc(100vw - 20px);max-height:calc(100dvh - 20px)}.image-dialog::backdrop{background:#000b}.image-dialog>button{position:absolute;right:4px;top:1px}.image-dialog>img{display:block;max-width:100%;max-height:calc(100dvh - 90px);object-fit:contain}
.handling-pending{--handling-ink:#9a430b;--handling-accent:#e17a1d;--handling-bg:#fff7ed;--handling-hover:#ffedd6;--handling-selected:#ffe7c8;--handling-badge:#ffdfb5;--handling-border:#efb06b}
.handling-active{--handling-ink:#195b9b;--handling-accent:#3a82cf;--handling-bg:#f5f9ff;--handling-hover:#eaf3ff;--handling-selected:#deedff;--handling-badge:#dcecff;--handling-border:#91b8e8}
.handling-closed{--handling-ink:#646464;--handling-accent:#aaa;--handling-bg:var(--surface);--handling-hover:var(--soft);--handling-selected:var(--soft);--handling-badge:#ededed;--handling-border:#bdbdbd}
:root[data-theme=dark] .handling-pending{--handling-ink:#ffbe7b;--handling-accent:#ec913a;--handling-bg:#2b2118;--handling-hover:#38291b;--handling-selected:#44301c;--handling-badge:#513417;--handling-border:#8b572a}
:root[data-theme=dark] .handling-active{--handling-ink:#93c5ff;--handling-accent:#64a4ef;--handling-bg:#192330;--handling-hover:#1e2d40;--handling-selected:#24374f;--handling-badge:#203e61;--handling-border:#426b9b}
:root[data-theme=dark] .handling-closed{--handling-ink:#b5b5b5;--handling-accent:#606060;--handling-badge:#303030;--handling-border:#555}
.conversation-item[class*="handling-"]{border-left:4px solid var(--handling-accent);border-bottom:1px solid var(--line);background:var(--handling-bg);margin-bottom:5px;padding-left:9px;transition:background .15s,box-shadow .15s}
.conversation-item[class*="handling-"]:hover{background:var(--handling-hover)}
.conversation-item[class*="handling-"].selected{background:var(--handling-selected);box-shadow:inset 0 0 0 1px var(--handling-border);border-bottom-color:transparent}
.conversation-item.handling-pending .conversation-avatar{color:var(--handling-ink);background:var(--handling-badge);border-color:var(--handling-border)}
.handling-badge{display:inline-flex;align-items:center;gap:4px;flex:none;white-space:nowrap;padding:3px 7px;border-radius:6px;background:var(--handling-badge);color:var(--handling-ink);font-size:10px;line-height:1.4;font-weight:700}
.handling-badge:before{content:"";width:5px;height:5px;flex:none;border-radius:50%;background:var(--handling-accent)}
.conversation-bottom{align-items:flex-start}.conversation-bottom small{display:flex;align-items:center;flex-wrap:wrap;gap:5px;min-width:0}.conversation-bottom .tiny-tag{margin-right:0}.conversation-bottom>.badge{flex:none;margin-top:2px}.conversation-owner{min-width:0;max-width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
#conversation-subtitle{display:flex;align-items:center;gap:7px;min-width:0;margin-top:5px}#conversation-assignee{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
@media(max-width:350px){.conversation-item[class*="handling-"]{gap:8px;padding-left:7px}.conversation-item .conversation-avatar{width:33px;height:33px;border-radius:10px}.conversation-bottom small{gap:4px}.handling-badge{padding:3px 6px;font-size:10px}}
.handling-handoff{--handling-ink:#a61b2a;--handling-accent:#d73542;--handling-bg:#fff3f4;--handling-hover:#ffe8ec;--handling-selected:#ffe3e7;--handling-badge:#ffd7de;--handling-border:#e88d99}
:root[data-theme=dark] .handling-handoff{--handling-ink:#ffafba;--handling-accent:#ff6b7b;--handling-bg:#2c191e;--handling-hover:#381c23;--handling-selected:#422029;--handling-badge:#54232e;--handling-border:#a84a5b}
.human-needed-notice{flex:none;margin:0;padding:10px 16px;border-bottom:1px solid #e88d99;background:#fff3f4;color:#a61b2a;font-size:12px;font-weight:600;line-height:1.6;overflow-wrap:anywhere}
.handoff-takeover{border-color:#d73542;background:#ffd7de;color:#a61b2a;font-weight:650}
:root[data-theme=dark] .human-needed-notice{background:#2c191e;color:#ffafba;border-bottom-color:#a84a5b}
:root[data-theme=dark] .handoff-takeover{border-color:#ff6b7b;background:#54232e;color:#ffafba}
@media(max-width:760px){.human-needed-notice{padding:10px 12px}}