:root{color-scheme:light;--bg:#f6f8fa;--surface:#fff;--text:#22303d;--muted:#78838f;--line:#e9edf0;--accent:#286959;--soft:#eaf4ef;--bubble:#edf1f4;font-family:Inter,ui-sans-serif,system-ui,-apple-system,sans-serif}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font-size:14px}button,input,textarea{font:inherit}button{cursor:pointer}button:disabled{opacity:.45;cursor:default}button:focus-visible,a:focus-visible,input:focus-visible,textarea:focus-visible{outline:2px solid var(--accent);outline-offset:3px}button{border:0;border-radius:12px;background:var(--soft);color:var(--accent);padding:10px 14px}button:hover{filter:brightness(.96)}.shell{display:grid;grid-template-columns:320px 1fr;height:100dvh;max-width:1500px;margin:auto;background:var(--surface)}.sidebar{display:flex;flex-direction:column;border-right:1px solid var(--line);min-height:0;padding:25px 16px 12px}.brand{display:flex;align-items:center;gap:11px;margin:0 8px 28px}.brandmark{width:38px;height:38px;border-radius:13px;background:var(--accent);color:#fff;display:inline-grid;place-items:center;font-size:26px;font-weight:600}.brand strong{font-size:17px}.brand small{display:block;color:var(--muted);font-size:11px;margin-top:2px}.sidebar-title{display:flex;align-items:center;justify-content:space-between;padding:0 9px}h1{font-size:19px;letter-spacing:-.5px}.icon{background:transparent;color:var(--muted);font-size:22px;padding:4px 10px}.search{display:flex;align-items:center;gap:8px;padding:10px 12px;background:var(--bg);border-radius:11px;margin:12px 0 20px;color:var(--muted)}.search input{border:0;background:transparent;color:var(--text);width:100%;outline:none;font-size:12px}nav{flex:1;overflow:auto}.conversation,.person{width:100%;display:flex;align-items:center;gap:12px;padding:13px 10px;text-align:left;background:transparent;color:var(--text);margin:3px 0}.conversation.active{background:var(--soft)}.avatar{width:41px;height:41px;border-radius:15px;background:#e9edf6;color:#56668b;display:grid;place-items:center;font-size:13px;font-weight:600;flex-shrink:0}.row-text{flex:1;min-width:0}.row-text strong{display:block;font-size:13px;font-weight:600}.row-text small{display:block;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:205px;color:var(--muted);margin-top:5px;font-size:12px}.badge{background:var(--accent);color:white;border-radius:20px;min-width:20px;height:20px;display:grid;place-items:center;font-size:10px}.empty{padding:18px 10px;color:var(--muted);font-size:12px;line-height:1.7}.people{max-height:220px;overflow:auto;border-bottom:1px solid var(--line)}footer{display:flex;align-items:center;gap:8px;border-top:1px solid var(--line);padding:15px 8px 0;color:var(--muted);font-size:11px}footer .icon{margin-left:auto}.online-dot{width:7px;height:7px;border-radius:100%;background:#69a889}.chat{display:flex;flex-direction:column;min-width:0;min-height:0}.chat-header{display:flex;align-items:center;gap:13px;padding:23px 28px;border-bottom:1px solid var(--line);min-height:88px}.chat-header h2{font-size:15px;margin:0 0 4px}.chat-header p{font-size:11px;color:var(--muted);margin:0}#back{display:block;flex:0 0 auto}.messages{flex:1;overflow:auto;padding:25px 32px;display:flex;flex-direction:column;gap:12px}.welcome{margin:auto;text-align:center;color:var(--muted)}.welcome h2{color:var(--text);font-size:32px;line-height:1.2;letter-spacing:-1px;font-weight:550}.welcome p{line-height:1.9;font-size:13px}.welcome-icon{font-size:33px;background:var(--soft);color:var(--accent);padding:13px 23px;border-radius:23px;display:inline-block}.message{max-width:min(80%,590px);align-self:flex-start;display:flex;flex-direction:column;gap:5px}.message.mine{align-self:flex-end;align-items:flex-end}.bubble{background:var(--bubble);padding:12px 16px;border-radius:15px 15px 15px 4px;line-height:1.6;white-space:pre-wrap;overflow-wrap:anywhere}.mine .bubble{background:var(--soft);border-radius:15px 15px 4px 15px}.message time{font-size:10px;color:var(--muted);padding:0 3px}#composer{display:flex;align-items:flex-end;gap:10px;margin:8px 28px;background:var(--bg);border:1px solid var(--line);padding:9px 11px;border-radius:16px}#composer:focus-within{border-color:var(--muted)}#message:focus-visible{outline:none}textarea{resize:none;max-height:150px;min-height:35px;flex:1;min-width:0;background:transparent;border:0;color:var(--text);padding:8px;outline:none}#send{background:var(--accent);color:white;width:35px;height:35px;border-radius:11px;padding:0;font-size:23px}.compose-hint{text-align:center;font-size:10px;color:var(--muted);padding:4px 10px 18px}#notice{margin:12px 25px 0;background:#fff2d6;color:#765722;padding:12px;border-radius:9px}#older{align-self:center;font-size:11px}.login-screen{position:fixed;inset:0;background:var(--bg);display:grid;place-items:center;padding:25px}.login-card{text-align:center;width:min(100%,390px);background:var(--surface);border:1px solid var(--line);padding:40px;border-radius:24px}.login-card p{line-height:1.8;color:var(--muted)}.login-card form{display:grid;gap:14px;margin-top:24px;text-align:left}.login-card label span{display:block;margin:0 0 6px;color:var(--muted);font-size:12px}.login-card input{width:100%;border:1px solid var(--line);border-radius:11px;background:var(--bg);color:var(--text);padding:13px 14px;font-size:16px}.login-card form button{margin-top:4px;background:var(--accent);color:#fff}.login-card #retry{margin-top:18px}.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0)}[hidden]{display:none!important}:root[data-theme=dark]{color-scheme:dark;--bg:#171e25;--surface:#1c252d;--text:#e5ebef;--muted:#93a0ab;--line:#2c3740;--accent:#78c9ab;--soft:#263f38;--bubble:#2a3540}:root[data-theme=dark] .brandmark,:root[data-theme=dark] #send{color:#173c30}@media(max-width:650px){.shell{grid-template-columns:1fr}.sidebar{padding-top:18px}.chat{display:none}.shell.in-chat .sidebar{display:none}.shell.in-chat .chat{display:flex}#back{display:block}.chat-header{padding:14px 16px;min-height:73px}.messages{padding:20px 16px}#composer{margin:8px 13px}.compose-hint{padding-bottom:12px}.brand{margin-bottom:13px}}@media(prefers-reduced-motion:no-preference){button{transition:background .15s ease}}
.pull-refresh{position:fixed;z-index:20;top:calc(env(safe-area-inset-top) + 8px);left:50%;display:flex;align-items:center;gap:7px;padding:8px 12px;border:1px solid var(--line);border-radius:18px;background:var(--surface);color:var(--muted);box-shadow:0 8px 24px #0002;opacity:0;pointer-events:none;transform:translate(-50%,-70px);transition:transform .18s ease,opacity .18s ease}.pull-refresh span{font-size:17px;transition:transform .15s ease}.pull-refresh small{white-space:nowrap}.pull-refresh.is-visible{opacity:1}.pull-refresh.is-ready span{transform:rotate(180deg)}.pull-refresh.is-loading span{animation:pull-spin .7s linear infinite}@keyframes pull-spin{to{transform:rotate(360deg)}}@media(max-width:650px){.chat,.sidebar{will-change:transform}.is-gesture-moving{transition:none!important}.is-gesture-reset{transition:transform .18s ease}}
#push-toggle .status-push{background:var(--muted)}#push-toggle[aria-pressed='true'] .status-push{background:var(--accent);box-shadow:0 0 0 4px color-mix(in srgb,var(--accent) 20%,transparent)}
#push-toggle{margin-top:6px;padding-top:14px;border-top:1px solid var(--line);border-radius:0}
.badge{background:#d63c45}
#attach{flex:0 0 35px;width:35px;height:35px;padding:0;border-radius:11px;background:transparent;color:var(--muted);font-size:24px}.attachment-selection{display:flex;align-items:center;gap:8px;margin:8px 28px -2px;padding:8px 10px;border:1px solid var(--line);border-radius:12px;background:var(--bg);color:var(--text);font-size:12px}.attachment-selection span{min-width:0;flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.attachment-selection button{width:28px;height:28px;padding:0;background:transparent;color:var(--muted);font-size:20px}.attachment-image{display:block;max-width:min(420px,100%);overflow:hidden;border:1px solid var(--line);border-radius:16px;background:var(--bg)}.attachment-image img{display:block;width:auto;max-width:100%;max-height:420px;object-fit:contain}.attachment-file{display:flex;flex-direction:column;min-width:220px;max-width:420px;padding:14px 16px;border:1px solid var(--line);border-radius:14px;background:var(--bubble);color:var(--text);text-decoration:none}.mine .attachment-file{background:var(--soft)}.attachment-file strong{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.attachment-file small{margin-top:5px;color:var(--muted)}
@media(max-width:650px){.attachment-selection{margin-right:13px;margin-left:13px}.attachment-image{max-width:100%}.attachment-image img{max-height:52dvh}.attachment-file{min-width:min(250px,78vw);max-width:82vw}}
.image-viewer{position:fixed;inset:0;z-index:100;display:grid;place-items:center;padding:56px;background:#071016e8;backdrop-filter:blur(12px)}.image-viewer img{display:block;max-width:min(1200px,100%);max-height:calc(100dvh - 112px);border-radius:16px;object-fit:contain;box-shadow:0 24px 80px #0009}.image-viewer button{position:absolute;top:calc(18px + env(safe-area-inset-top));right:calc(18px + env(safe-area-inset-right));display:grid;place-items:center;width:44px;height:44px;padding:0;border:1px solid #ffffff35;border-radius:50%;background:#16232dcc;color:#fff;font-size:30px;line-height:1}.attachment-image{cursor:zoom-in}@media(max-width:650px){.image-viewer{padding:calc(58px + env(safe-area-inset-top)) calc(12px + env(safe-area-inset-right)) calc(18px + env(safe-area-inset-bottom)) calc(12px + env(safe-area-inset-left))}.image-viewer img{max-height:calc(100dvh - 76px - env(safe-area-inset-top) - env(safe-area-inset-bottom));border-radius:12px}}
.login-card #login-message.is-error{margin:18px 0 4px;padding:12px 14px;border:1px solid #d9535b66;border-radius:12px;background:#d9535b1c;color:#d9535b;font-weight:650}:root[data-theme=dark] .login-card #login-message.is-error{background:#ff667318;color:#ff9299;border-color:#ff788055}
.update-banner{position:fixed;z-index:80;left:50%;bottom:18px;transform:translateX(-50%);display:flex;align-items:center;gap:14px;max-width:calc(100% - 28px);padding:10px 12px 10px 16px;border:1px solid var(--line);border-radius:16px;background:var(--surface);color:var(--text);box-shadow:0 12px 35px #0003;font-size:13px}.update-banner button{white-space:nowrap;background:var(--accent);color:#fff}.update-banner[hidden]{display:none!important}@media(max-width:650px){.update-banner{bottom:calc(12px + env(safe-area-inset-bottom));width:calc(100% - 24px);justify-content:space-between}}
.avatar.is-group{background:var(--accent);color:#fff}.group-start{border-bottom:1px solid var(--line);border-radius:0;margin-bottom:8px}.message-sender{font-size:11px;color:var(--muted);padding:0 4px}.group-dialog{position:fixed;z-index:90;inset:0;background:#10182099;display:grid;place-items:center;padding:18px}.group-dialog[hidden]{display:none!important}.group-card{width:min(460px,100%);max-height:min(720px,calc(100dvh - 36px));display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--line);border-radius:22px;box-shadow:0 24px 70px #0005;overflow:hidden}.group-card>header{display:flex;align-items:center;justify-content:space-between;padding:20px 22px 14px}.group-card h2{margin:3px 0 0}.group-card header small,.group-card>label span{display:block;color:var(--muted);font-size:11px}.group-card>label{padding:7px 22px}.group-card>label input{width:100%;margin-top:7px;border:1px solid var(--line);border-radius:11px;background:var(--bg);color:var(--text);padding:12px 13px;font-size:16px}.group-members{margin:10px 22px;min-height:150px;overflow:auto;border:1px solid var(--line);border-radius:13px}.group-member{display:flex;align-items:center;gap:10px;padding:10px;border-bottom:1px solid var(--line);cursor:pointer}.group-member:last-child{border-bottom:0}.group-member input{accent-color:var(--accent)}.group-member .avatar{width:36px;height:36px;border-radius:12px}.group-card>footer{display:flex;align-items:center;gap:12px;border:0;padding:14px 22px 20px;color:var(--muted);font-size:12px}.group-card>footer button{margin-left:auto;background:var(--accent);color:#fff}@media(max-width:650px){.group-dialog{padding:0;align-items:end}.group-card{max-height:92dvh;border-radius:22px 22px 0 0;padding-bottom:env(safe-area-inset-bottom)}.message-sender{font-size:12px}}
.group-info-button{margin-left:auto;font-size:16px;letter-spacing:2px}.manage-card{max-height:min(800px,calc(100dvh - 36px))}.rename-form{display:flex;align-items:end;gap:8px;padding:4px 22px 12px}.rename-form label{flex:1}.rename-form label span,.add-member-area label span{display:block;color:var(--muted);font-size:11px;margin-bottom:7px}.rename-form input,.add-member-area input{width:100%;border:1px solid var(--line);border-radius:11px;background:var(--bg);color:var(--text);padding:11px 12px;font-size:16px}.member-heading{display:flex;justify-content:space-between;padding:10px 22px 0;font-size:12px}.member-heading span{color:var(--muted)}.manage-card .group-members{min-height:0}.member-remove{margin-left:auto;background:transparent;color:#c4515a;padding:7px}.add-member-area{padding:0 22px}.add-member-area .group-members{margin:9px 0;max-height:210px}.add-result{width:100%;border:0;border-bottom:1px solid var(--line);border-radius:0;background:transparent;color:var(--text);text-align:left}.danger-button{background:#fae9eb!important;color:#b33c47!important;margin-left:0!important}.system-event{align-self:center;max-width:85%;padding:6px 10px;border-radius:99px;background:var(--bg);color:var(--muted);font-size:10px;text-align:center}@media(prefers-color-scheme:dark){.danger-button{background:#452a30!important;color:#ff9ca5!important}}@media(max-width:650px){.manage-card{max-height:92dvh}.rename-form{padding-inline:16px}.member-heading,.add-member-area{padding-inline:16px}.manage-card .group-members{margin-inline:16px}}

.group-message{max-width:min(86%,650px);display:grid;grid-template-columns:38px minmax(0,1fr);column-gap:10px;align-items:start}.group-message>.avatar{width:36px;height:36px;border-radius:12px;font-size:11px}.group-message .message-content{min-width:0;display:flex;flex-direction:column;align-items:flex-start;gap:5px}.group-message.continuation{display:block;padding-left:48px}.group-message .bubble{max-width:100%}

.manage-card>footer{flex-wrap:wrap}.manage-card>footer #group-mute{margin-left:0;background:var(--soft);color:var(--accent)}

.muted-indicator{width:18px;height:18px;color:var(--muted);flex:0 0 auto}.muted-indicator svg{display:block;width:100%;height:100%;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}

.message-link{color:inherit;text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:2px;overflow-wrap:anywhere}.message-link:hover{text-decoration-thickness:2px}