:root{font-family:Inter,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:#162e35;background:#edf3f5;font-synthesis:none;--cyan:#4fb1ca;--line:#e3ecef;--muted:#71838b;--rail:#102d35;--white:#fff}*{box-sizing:border-box}body{margin:0}button,input,textarea,select{font:inherit}button,a,input,textarea,select{-webkit-tap-highlight-color:transparent}button{cursor:pointer;border:0;background:transparent;color:inherit}button:disabled{opacity:.5;cursor:wait}button:focus-visible,a:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible{outline:3px solid #78c9de;outline-offset:2px}a{color:#218ba7;text-decoration:none}a:hover{text-decoration:underline}svg{width:22px;height:22px;flex-shrink:0}h1,h2,h3,p{margin:0}h1,h2{letter-spacing:-.035em}small{font-size:12px}.muted{color:var(--muted)}.cyan{color:var(--cyan)}.grow{flex:1}.hidden,[hidden]{display:none!important}.eyebrow{font-size:10px;font-weight:800;letter-spacing:.17em;color:#67848e}.primary{display:inline-flex;justify-content:center;align-items:center;gap:8px;background:var(--cyan);color:white;border-radius:13px;padding:13px 20px;font-weight:650;min-height:44px}.primary:hover{background:#359bb6}.wide{display:block;width:100%;padding:14px;text-align:left;border-radius:10px}.wide:hover{background:#eff7f9}.wide.primary:hover{background:#359bb6}.danger{color:#c44552}.icon-button{width:42px;height:42px;display:inline-flex;justify-content:center;align-items:center;border-radius:12px;flex-shrink:0}.icon-button:hover{background:#eaf5f8}.avatar{height:46px;width:46px;border-radius:16px;background:#e5f4f8;color:#25849d;font-size:16px;font-weight:700;display:flex;align-items:center;justify-content:center;flex-shrink:0;overflow:hidden}.avatar img{width:100%;height:100%;object-fit:cover}.avatar.large{width:90px;height:90px;border-radius:28px;font-size:28px;margin:auto}.workspace{height:100dvh;display:grid;grid-template-columns:76px 340px minmax(0,1fr);max-width:1800px;margin:auto;background:white;overflow:hidden;box-shadow:0 0 90px #253b4210}.rail{display:flex;align-items:center;flex-direction:column;gap:10px;padding:24px 10px;background:var(--rail);color:#aac6cf}.brand{width:44px;height:44px;margin-bottom:20px}.rail-button{width:50px;height:50px;border-radius:15px;display:flex;align-items:center;justify-content:center}.rail-button:hover,.rail-button:focus-visible{background:#2b5660;color:white}.sidebar{border-right:1px solid var(--line);display:flex;flex-direction:column;min-height:0}.list-title{display:flex;justify-content:space-between;align-items:center;padding:30px 22px 18px}.list-title h1{font-size:26px;margin-top:7px}.search{margin:0 20px 20px;display:flex;align-items:center;background:#f2f6f7;border-radius:12px;padding:12px;gap:9px;color:#87a1aa}.search svg{width:18px;height:18px}.search input{width:100%;border:0;outline:none;background:transparent;font-size:13px;color:#314f5a;min-width:0}.list-items{overflow-y:auto;flex:1;padding:0 10px 16px}.list-row{width:100%;padding:15px 12px;display:flex;align-items:center;gap:12px;text-align:left;border-radius:13px;margin-bottom:3px}.list-row:hover{background:#f4f8f9}.list-row.selected{background:#eaf5f8}.row-main{display:flex;flex-direction:column;gap:7px;min-width:0;flex:1}.row-main strong{font-size:14px;white-space:nowrap;text-overflow:ellipsis;overflow:hidden;font-weight:650}.row-sub{font-size:12px;color:#8b9aa0;white-space:nowrap;text-overflow:ellipsis;overflow:hidden}.list-row>small{font-size:10px;color:#9cadb3;align-self:flex-start;margin-top:5px}.connection{padding:15px 16px;border-top:1px solid var(--line);font-size:10px;color:#789199;display:flex;gap:6px;align-items:center}.online-dot,.offline-dot{width:7px;height:7px;border-radius:50%;background:#55bca6;flex-shrink:0}.offline-dot{background:#cbb774}.empty-list{padding:50px 20px;text-align:center;font-size:13px;color:#92a4ab}.sidebar-note{padding:20px;font-size:13px;line-height:1.7}.detail{min-width:0;min-height:0;display:flex;flex-direction:column;background:#f5f8f9}.welcome{margin:auto;max-width:600px;padding:50px;text-align:center;display:flex;flex-direction:column;align-items:center;gap:22px}.welcome-mark{width:86px;height:86px;background:#e1f0f4;border:1px solid #d4e9ee;border-radius:28px;display:flex;align-items:center;justify-content:center;color:var(--cyan)}.welcome-mark svg{width:35px;height:35px}.welcome h2{font-size:38px;line-height:1.2}.welcome p{font-size:15px;line-height:1.9;color:#788d95}.security-pill{border:1px solid #d7e7eb;background:white;border-radius:100px;padding:11px 17px;font-size:12px;color:#62828d;display:flex;align-items:center;gap:8px}.security-pill svg{width:14px;height:14px}.source-link{font-size:11px;color:#8c9fa6}.detail-head{height:90px;min-height:90px;border-bottom:1px solid var(--line);background:white;padding:16px 28px;display:flex;align-items:center;gap:15px}.detail-head h2{font-size:22px}.chat-title{display:flex;flex-direction:column;gap:6px;text-align:left}.chat-title strong{font-size:16px}.mobile-back{display:none}.messages{padding:22px 7%;overflow-y:auto;flex:1;display:flex;flex-direction:column;align-items:flex-start;gap:12px;overscroll-behavior:contain;background-color:#f5f8f9;background-image:radial-gradient(#dbebef80 1px,transparent 1px);background-size:18px 18px}.chat-security{align-self:center;font-size:10px;line-height:1.5;display:flex;align-items:center;gap:8px;color:#7f969e;margin:8px 0 22px}.chat-security svg{width:13px;height:13px}.bubble{max-width:80%;min-width:110px;border-radius:17px;padding:12px 16px;background:white;box-shadow:0 2px 4px #152b3205;font-size:14px;line-height:1.55;overflow-wrap:anywhere}.bubble.mine{align-self:flex-end;background:#daf0f6;border-bottom-right-radius:4px}.bubble.theirs{border-bottom-left-radius:4px}.bubble.pending{opacity:.65}.sender{font-size:11px;color:#3294ac}.message-text{white-space:pre-wrap}.message-meta{display:flex;align-items:center;justify-content:flex-end;gap:4px;color:#91a4ab;font-size:9px;margin-top:4px}.message-menu{width:20px;height:20px;opacity:.5;display:flex;align-items:center;justify-content:center}.message-menu svg{width:12px;height:12px}.message-menu:hover{opacity:1}.quoted{border-left:3px solid #54b2c9;background:#bde1ea40;border-radius:5px;margin-bottom:7px;padding:6px 9px;font-size:11px;color:#6c919d}.reactions{display:flex;gap:5px;margin-top:8px}.reactions span{padding:2px 6px;border-radius:20px;background:white}.attachment-button{padding:8px 12px;border:1px solid #bbd8e1;border-radius:8px;font-size:12px}.older-button{align-self:center;padding:9px 15px;border-radius:30px;background:white;color:#3896af;font-size:11px}.composer{display:flex;align-items:center;gap:12px;padding:18px 24px;background:white;border-top:1px solid var(--line)}.composer textarea{resize:none;border:0;background:#f2f6f7;border-radius:13px;padding:14px 16px;flex:1;min-width:0;max-height:160px;color:#29424c;line-height:1.45}.send-button{width:46px;height:46px;background:var(--cyan);border-radius:14px;color:white;display:flex;align-items:center;justify-content:center;flex-shrink:0}.reply-box{display:flex;align-items:center;gap:8px;background:#eef6f8;font-size:12px}.reply-box:not(:empty){padding:8px 24px}.profile-page{padding:35px;overflow-y:auto;max-width:760px;width:100%;margin:0 auto;display:flex;flex-direction:column;gap:22px;align-items:stretch}.profile-page>h2,.profile-page>p.cyan{text-align:center}.profile-page>p{font-size:13px;line-height:1.8}.card{background:white;border:1px solid #e4edef;padding:26px;border-radius:20px;display:flex;flex-direction:column;gap:18px}.profile-field{display:flex;align-items:center;gap:10px;font-size:13px}.profile-field>span:first-child{flex:1}.profile-field>span:nth-child(2){max-width:60%;text-align:right}.form{display:flex;flex-direction:column;gap:20px}.form label{display:flex;flex-direction:column;gap:9px;font-size:12px;font-weight:600}.form input:not([type=checkbox]),.form textarea,.form select,.profile-field input{border:1px solid #dce9ed;border-radius:10px;padding:12px;background:#fafcfd;color:#354f59;width:100%;min-width:0}.form .switch-label{display:flex;flex-direction:row;align-items:center;justify-content:space-between;gap:12px;font-size:13px}.switch-label small{display:block;color:#81949c;font-weight:400;line-height:1.5;margin-top:6px}.switch-label input{accent-color:var(--cyan);width:20px;height:20px;flex-shrink:0}.button-row{display:flex;gap:12px;justify-content:center;align-items:center}.modal-overlay,.call-overlay{position:fixed;inset:0;background:#0b232b80;display:flex;align-items:center;justify-content:center;padding:24px;z-index:30;backdrop-filter:blur(5px)}.modal{background:white;border-radius:22px;padding:24px;width:min(500px,100%);max-height:90dvh;overflow:auto;box-shadow:0 20px 100px #08242d50}.modal-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px}.modal-head h2{font-size:22px}.action-list{display:flex;flex-wrap:wrap;gap:10px}.reaction-button{padding:12px;border-radius:8px;font-size:20px;background:#f2f7f9}.media-view{display:flex;flex-direction:column;align-items:center;gap:20px}.media-view img,.media-view video{max-width:100%;max-height:60dvh;border-radius:12px}.toast{position:fixed;left:50%;bottom:25px;transform:translateX(-50%);background:#173b46;color:white;padding:14px 22px;border-radius:12px;max-width:min(600px,90%);font-size:13px;line-height:1.6;box-shadow:0 10px 40px #07222d30;z-index:60}.boot{min-height:100dvh;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:25px;padding:30px;text-align:center}.boot img{width:64px;height:64px}.boot p{max-width:700px;line-height:1.8}.login{min-height:100dvh;display:grid;grid-template-columns:1fr 470px;gap:8%;max-width:1200px;margin:auto;padding:65px 40px;align-items:center}.login-copy{display:flex;flex-direction:column;gap:28px}.login-brand{display:flex;align-items:center;gap:10px;font-size:24px;letter-spacing:-.04em;font-weight:700;margin-bottom:50px;flex-wrap:wrap}.login-brand img{width:44px;height:44px}.login-brand span{font-size:9px;letter-spacing:.2em;font-weight:500;align-self:flex-end;margin-bottom:9px}.login h1{font-size:58px;line-height:1.12;letter-spacing:-.05em}.login-copy>p{color:#6e8792;font-size:16px;line-height:1.9;max-width:430px}.login-pills{display:flex;gap:18px;margin:4px 0 30px}.login-pills span{display:flex;align-items:center;gap:7px;font-size:12px;color:#588391}.login-pills svg{width:17px;height:17px}.login-copy>a{font-size:12px}.link-card{background:white;border:1px solid #dfecef;padding:38px;border-radius:28px;box-shadow:0 20px 80px #17374308;display:flex;flex-direction:column;align-items:center;gap:20px}.link-card h2{font-size:24px;align-self:flex-start}.link-card ol{padding-left:18px;margin:0;align-self:flex-start;color:#748b95;font-size:13px;line-height:2}.qr-box{padding:9px;background:white;border:1px solid #e4edef;border-radius:18px}.qr-box canvas{display:block;max-width:100%;height:auto}.link-card>small{font-size:11px;line-height:1.7;text-align:center}.link-card>p{font-size:12px;line-height:1.7;text-align:center}.web-note{border-top:1px solid #e9f0f2;padding-top:18px;color:#8b9fa7}.call-panel{background:#102c35;color:white;width:min(760px,100%);border-radius:24px;overflow:hidden;display:flex;flex-direction:column;align-items:center;gap:20px;padding-bottom:28px}.call-panel h2{font-size:25px}.call-panel p{color:#a0bac4;font-size:13px}.call-video{width:100%;height:min(50dvh,430px);background:#08212a;position:relative}.call-video #remote-video{width:100%;height:100%;object-fit:contain}.call-video #local-video{position:absolute;right:15px;bottom:15px;width:140px;height:100px;object-fit:cover;border-radius:12px}.voice-call .call-video{height:90px}.voice-call video{visibility:hidden}.call-panel .icon-button:hover{background:#234953}.hangup{background:#d65b65;color:white;width:48px;height:48px;border-radius:15px;display:flex;justify-content:center;align-items:center}.call-panel .button-row{padding:0 20px}
.license-link{font-size:12px;color:#557680;padding:8px 12px;border-radius:8px}.license-link:hover{background:#edf5f7;text-decoration:underline}
.detail{position:relative}.drop-overlay{position:absolute;inset:12px;border:2px dashed #4fb1ca;background:#eff9fcf2;border-radius:20px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;z-index:10;pointer-events:none;backdrop-filter:blur(4px);color:#218ba7}.drop-overlay svg{width:54px;height:54px}.drop-overlay strong{font-size:24px}.drop-overlay span{font-size:13px;text-align:center;padding:0 20px}.attachment-drafts{display:flex;flex-direction:column;gap:10px;max-height:40dvh;overflow:auto}.attachment-draft{display:flex;align-items:center;gap:12px;padding:10px;border:1px solid var(--line);border-radius:12px;min-width:0}.draft-preview{width:92px;height:76px;object-fit:contain;border-radius:8px;background:#e9f2f5;flex-shrink:0}.draft-file{width:56px;height:56px;display:flex;align-items:center;justify-content:center;background:#e9f2f5;border-radius:10px;flex-shrink:0;color:#428aa0}.draft-description{display:flex;flex-direction:column;gap:7px;min-width:0;flex:1}.draft-description strong{font-size:12px;overflow-wrap:anywhere}.draft-description small{font-size:10px}.notification-banner{background:#edf8fb;border-top:1px solid #dbeaf0;padding:16px;display:flex;flex-direction:column;gap:8px}.notification-banner strong{font-size:12px;color:#2a6575}.notification-banner p{font-size:11px;line-height:1.5;color:#658590}.notification-enable{align-self:flex-start;font-size:11px;font-weight:650;color:#218ba7;border:1px solid #b5dbe5;border-radius:8px;padding:8px 12px;background:#fff}.notification-blocked{font-size:10px;color:#7a6b53;line-height:1.5;width:100%;padding:12px;border-top:1px solid var(--line);text-align:left}
.bubble:has(.inline-media){width:min(352px,80%)}.inline-media{width:100%;margin:4px 0;overflow:hidden;border-radius:11px;background:#b9dce530}.media-stage{aspect-ratio:4/3;display:flex;align-items:center;justify-content:center;background:#c8e1e850;overflow:hidden}.media-trigger{width:100%;height:100%;min-height:150px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;padding:18px}.media-trigger:disabled{opacity:1;cursor:default}.media-glyph{width:48px;height:48px;display:flex;align-items:center;justify-content:center;border-radius:50%;background:#fff9;color:#20869f;font-size:25px}.media-status{font-size:12px;line-height:1.5;text-align:center;color:#4e7380;max-width:260px}.media-photo{padding:0;display:block}.media-photo img{display:block;width:100%;height:100%;object-fit:contain}.media-stage video{width:100%;height:100%;object-fit:contain;background:#102d35}.media-caption{padding:8px 10px;display:flex;gap:10px;align-items:center;font-size:10px;color:#658590}.media-caption>span{white-space:nowrap;overflow:hidden;text-overflow:ellipsis;flex:1;min-width:0}.media-caption small{font-size:10px;white-space:nowrap}.modal:has(.media-view){width:min(920px,100%)}.media-view{display:flex;flex-direction:column;align-items:center;gap:18px}.media-view img,.media-view video{max-width:100%;max-height:65dvh;object-fit:contain;border-radius:10px}.media-view audio{max-width:100%}
@media(min-width:1600px){body{padding:25px}.workspace{height:calc(100dvh - 50px);border-radius:22px}}@media(max-width:1050px){.workspace{grid-template-columns:68px 290px minmax(0,1fr)}.detail-head{padding:14px 18px}.messages{padding:18px 5%}.welcome{padding:30px}.welcome h2{font-size:31px}.login{grid-template-columns:1fr 420px;gap:5%;padding:40px 30px}.login h1{font-size:46px}.link-card{padding:28px}}@media(max-width:760px){.workspace{grid-template-columns:64px 1fr}.detail{display:none}.workspace.detail-open{grid-template-columns:1fr}.workspace.detail-open .rail,.workspace.detail-open .sidebar{display:none}.workspace.detail-open .detail{display:flex}.mobile-back{display:flex}.detail-head{height:78px;min-height:78px;gap:10px;padding:12px}.detail-head .icon-button{width:34px}.detail-head .avatar{width:40px;height:40px;border-radius:13px}.chat-title strong{font-size:14px}.messages{padding:15px}.bubble{max-width:90%}.composer{padding:12px;gap:7px}.composer textarea{font-size:14px}.profile-page{padding:20px}.card{padding:20px}.login{grid-template-columns:1fr;gap:35px;padding:35px 20px;max-width:530px}.login-brand{margin-bottom:8px}.login h1{font-size:40px}.login-copy{gap:19px}.login-copy>p{font-size:14px}.login-pills{margin:0}.login-copy>a{display:none}.link-card{padding:25px}.modal-overlay{padding:12px}.call-video #local-video{width:100px;height:80px}.call-panel{gap:16px}.welcome h2{font-size:29px}}

/* Stable attachment slots, encrypted inline JPEG previews and actual byte progress. */
.receiving-attachment{position:relative;overflow:hidden;min-height:180px;background:#dceaf0}
.attachment-miniature{width:100%;height:100%;object-fit:cover;filter:blur(8px);transform:scale(1.08)}
.attachment-progress{--progress:0%;position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);width:56px;height:56px;border-radius:50%;padding:4px;background:conic-gradient(#62727b var(--progress),#ffffffb8 0);display:grid;place-items:center}
.transfer-percent{background:#edf1ef;color:#4b5960;border-radius:50%;width:48px;height:48px;display:grid;place-items:center;font-size:12px;font-weight:700;font-variant-numeric:tabular-nums}
.attachment-cover{display:flex;flex-direction:column;gap:10px;padding:16px;align-self:flex-start;overflow-wrap:anywhere;color:#304852}
.inline-file .media-stage{height:76px;min-height:76px;display:flex;align-items:center;gap:10px}
.inline-file .receiving-attachment{min-height:76px;height:76px;width:100%}
.inline-file .attachment-miniature{width:76px;height:76px;flex-shrink:0}
.inline-file .attachment-progress{left:38px}
.inline-file audio{width:100%;min-width:170px}
.attachment-ready{display:flex;align-items:center;gap:10px;background:none;color:inherit;border:0;cursor:pointer;text-align:left;overflow:hidden;width:100%}
.attachment-ready span{overflow:hidden;text-overflow:ellipsis}
.complete-miniature,.inline-file audio+.attachment-miniature{filter:none;transform:none}
.inline-video .media-stage{aspect-ratio:4/3}
.inline-video video{width:100%;height:100%;object-fit:contain}

.receiving-attachment{padding:0;gap:0}
.receiving-attachment>.attachment-miniature{position:absolute;inset:0;width:100%;height:100%}
.inline-file .receiving-attachment>.attachment-miniature{width:76px;height:76px}
.inline-file .media-stage{aspect-ratio:auto}
.attachment-ready>.attachment-miniature,.inline-file .complete-miniature{filter:none;transform:none}

/* Full document header, metadata below, optional message text outside the card. */
.inline-document{width:100%;background:#ffffffa6}
.inline-document .media-stage{aspect-ratio:280/164;width:100%;min-height:0;background:white}
.inline-document .receiving-attachment{height:100%;min-height:0}
.inline-document .attachment-miniature,.document-thumbnail{width:100%;height:100%;object-fit:cover;object-position:top center;transform:none}
.inline-document .document-preview-ready{width:100%;height:100%;padding:0;border:0;background:white;overflow:hidden;cursor:pointer}
.inline-document .document-preview-ready>.complete-miniature{filter:none;transform:none}
.document-metadata{width:100%;display:flex;align-items:center;gap:10px;background:#00000009;border:0;color:inherit;text-align:left;padding:12px;cursor:pointer}
.document-type{min-width:28px;min-height:36px;border-radius:4px;background:#378ca5;color:white;display:grid;place-items:center;font-size:10px;font-weight:700;padding:3px}
.document-type.pdf{background:#d9274f}
.document-info{display:flex;flex-direction:column;gap:4px;min-width:0}
.document-info strong{font-size:14px;font-weight:500;overflow:hidden;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow-wrap:anywhere}
.document-info small{font-size:11px;color:#63777e}
.web-version{display:block;font-size:10px;opacity:.75;margin-left:5px}

/* Group authors remain visible above text, media and documents. */
.sender{display:-webkit-box;-webkit-box-orient:vertical;-webkit-line-clamp:2;overflow:hidden;overflow-wrap:anywhere;font-size:13px;font-weight:600;line-height:1.35;margin-bottom:4px;text-align:left}
.sender.sender-color-0{color:#0b6b61}.sender.sender-color-1{color:#2b5797}.sender.sender-color-2{color:#8a3d80}.sender.sender-color-3{color:#9a4b11}.sender.sender-color-4{color:#6c4e9b}.sender.sender-color-5{color:#397126}

.group-call-grid{display:none}.group-call .call-video>#remote-video{display:none}.group-call .group-call-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:10px;height:100%;padding:8px 8px 100px}.group-call-tile{position:relative;background:#12333e;border-radius:16px;overflow:hidden;min-height:140px}.group-call-tile video{width:100%;height:100%;max-height:40vh;object-fit:cover}.group-call-tile span{position:absolute;bottom:8px;left:8px;color:white;background:#0009;border-radius:8px;padding:4px 8px}.voice-call.group-call .call-video{display:block;height:220px}.voice-call.group-call .group-call-tile video{height:70px}

/* Multiple-message actions keep media cards mounted while selection changes. */
#selection-controls{display:flex;align-items:center;gap:12px;padding:14px 22px;background:#fff;border-top:1px solid var(--line);flex-shrink:0}
#selection-controls .primary{padding:10px 15px}.bubble{position:relative}.message-selector{display:none;position:absolute;right:8px;bottom:8px;width:25px;height:25px;border:2px solid #8d9da3;border-radius:50%;background:#fff;align-items:center;justify-content:center}.message-selector svg{width:18px;height:18px;visibility:hidden}.bubble.selection-active{cursor:pointer;padding-right:42px;user-select:none}.selection-active .message-selector{display:flex}.message-selected{outline:2px solid var(--cyan);outline-offset:2px}.message-selected .message-selector{background:var(--cyan);border-color:var(--cyan);color:#fff}.message-selected .message-selector svg{visibility:visible}.message-delete-modal{background:#fff;color:#162e35;width:min(420px,100%)}.message-delete-modal .action-list>p{padding:0 14px 14px;line-height:1.5}
@media(max-width:760px){#selection-controls{padding:10px;gap:8px}#selection-controls .primary{padding:10px}#selection-controls>span{font-size:12px}}

.group-photo-preview { display: flex; justify-content: center; }