@font-face{font-family:Inter;src:local('Inter');font-display:swap}
:root{font-family:Inter,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:#141821;background:#f3f4f8;font-synthesis:none;--accent:#3b5bdb;--light:#e7ecff;--muted:#5f6673;--border:#eceef2}*{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}button:disabled{cursor:not-allowed;opacity:.5}button{color:inherit}a{color:var(--accent)}button:focus-visible,a:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible{outline:3px solid #8eacff;outline-offset:3px}button svg,a svg{pointer-events:none}svg{width:21px;height:21px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;flex-shrink:0}h1,h2,h3,p{margin:0}h1{font-size:24px;letter-spacing:-.5px}h2{font-size:17px;font-weight:600}h3{font-size:14px}small,.muted{color:var(--muted)}.hidden{display:none!important}.icon-btn{width:44px;height:44px;min-width:44px;display:inline-flex;align-items:center;justify-content:center;border:0;background:transparent;border-radius:12px}.icon-btn:hover{background:var(--light);color:#233a9e}.primary{border:0;background:var(--accent);color:white;min-height:48px;border-radius:12px;padding:12px 20px;font-weight:600;display:inline-flex;align-items:center;justify-content:center;gap:10px}.primary:hover{background:#2b44a8}.secondary{border:1px solid #dadde4;background:white;border-radius:12px;min-height:44px;padding:10px 16px;display:inline-flex;align-items:center;justify-content:center;gap:10px}.danger{color:#ac2936}.stack{display:flex;flex-direction:column;gap:16px}.row{display:flex;align-items:center;gap:12px}.grow{flex:1;min-width:0}.avatar{width:44px;height:44px;flex-shrink:0;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;background:var(--light);color:#233a9e;font-weight:600;font-size:14px}.avatar[data-color="1"]{background:#ddf3ec;color:#0f5f4c}.avatar[data-color="2"]{background:#fde7ef;color:#9b1c4a}.avatar[data-color="3"]{background:#fff1cc;color:#7a5200}.avatar[data-color="4"]{background:#e9e4fb;color:#4b2ea0}.avatar.large{width:72px;height:72px;font-size:24px}.logo{width:44px;height:44px;display:flex;align-items:center;justify-content:center;background:var(--accent);color:white;border-radius:12px}.eyebrow{font-size:12px;font-weight:600;letter-spacing:1.5px;text-transform:uppercase}.loading{display:grid;place-items:center;min-height:100dvh;color:var(--muted)}
/* Login */
.login{display:grid;grid-template-columns:1fr 1fr;min-height:100dvh}.brand{background:var(--accent);color:white;padding:56px 64px;display:flex;flex-direction:column;justify-content:space-between;gap:50px}.brand .logo{background:white;color:var(--accent)}.brand-title{font-size:20px;font-weight:700}.brand h1{font-size:clamp(38px,4vw,58px);max-width:560px;line-height:1.08;letter-spacing:-1.8px;margin-bottom:24px}.brand p{font-size:18px;line-height:1.6;max-width:510px;opacity:.92}.brand ul{padding:0;list-style:none;display:grid;gap:18px;font-size:15px}.brand li{display:flex;gap:12px;align-items:center}.login-side{display:flex;align-items:center;justify-content:center;padding:40px 28px}.login-card{width:100%;max-width:400px}.login-card h2{font-size:26px;letter-spacing:-.5px;margin:20px 0 10px}.login-card p{line-height:1.6;font-size:15px;margin-bottom:26px;color:var(--muted)}.login-card .primary,.login-card .secondary{width:100%;min-height:52px}.login-card .fingerprint{width:64px;height:64px;background:var(--light);border-radius:20px;color:var(--accent);display:grid;place-items:center}.fingerprint svg{width:32px;height:32px}.divider{display:flex;align-items:center;gap:12px;color:var(--muted);font-size:12px;margin:24px 0}.divider:before,.divider:after{content:"";height:1px;background:#dadde4;flex:1}.demo-box{background:white;border:1px solid var(--border);border-radius:14px;padding:16px;margin-top:24px}.demo-box p{font-size:12px;margin:6px 0 12px}.demo-box select{width:100%;margin-bottom:10px}.login-foot{font-size:12px!important;text-align:center;margin-top:24px;display:flex;justify-content:center;align-items:center;gap:7px}.login-foot svg{width:15px;height:15px}
/* Application */
.shell{display:grid;grid-template-columns:72px 360px minmax(0,1fr);height:100dvh;overflow:hidden}.rail{background:#1b2030;display:flex;align-items:center;flex-direction:column;padding:18px 0;gap:10px;color:#b7bcc8}.rail .logo{margin-bottom:18px}.rail button{width:48px;height:48px;border-radius:14px;color:inherit}.rail button.active{background:#ffffff24;color:white}.rail button:hover{background:#ffffff18;color:white}.rail .spacer{flex:1}.rail .avatar{width:40px;height:40px}.conversation-list{background:white;border-right:1px solid #e3e5ea;display:flex;flex-direction:column;min-width:0;overflow:hidden}.list-head{padding:20px 20px 14px;display:flex;flex-direction:column;gap:14px}.list-head .compose{background:var(--light);color:#233a9e}.search{height:44px;display:flex;align-items:center;gap:10px;padding:0 12px;background:#f3f4f8;border-radius:12px;color:var(--muted)}.search svg{width:18px;height:18px}.search input{width:100%;border:0;background:transparent;outline:0;font-size:13px;color:#141821}.filters{display:flex;gap:5px}.filter{border:1px solid var(--border);border-radius:18px;background:white;min-height:44px;padding:0 10px;font-size:12px;color:#4a505c}.filter.active{border-color:var(--light);background:var(--light);color:#233a9e;font-weight:600}.chat-rows{overflow-y:auto;flex:1;padding:0 8px 12px}.chat-row{width:100%;border:0;background:white;display:flex;gap:12px;align-items:center;text-align:left;padding:14px 12px;border-radius:12px;margin:2px 0;min-height:80px}.chat-row:hover{background:#f6f7fb}.chat-row.active{background:#e7ecff}.chat-row .name{font-size:14px;font-weight:600;white-space:nowrap;text-overflow:ellipsis;overflow:hidden}.chat-row .preview{font-size:12px;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;line-height:22px}.chat-row .time{font-size:11px;white-space:nowrap;color:var(--muted)}.chat-row.unread .name{font-weight:700}.chat-row.unread .time{color:var(--accent);font-weight:600}.badge{display:inline-flex;align-items:center;justify-content:center;min-width:20px;height:20px;padding:0 6px;border-radius:10px;background:var(--accent);color:white;font-size:11px;font-weight:700}.row-line{display:flex;justify-content:space-between;align-items:center;gap:8px}.pinned-label{font-size:10px;color:var(--muted);letter-spacing:1px;padding:12px 12px 4px;text-transform:uppercase;display:flex;align-items:center;gap:6px}.pinned-label svg{width:12px;height:12px}.list-foot{border-top:1px solid var(--border);padding:12px 20px;display:flex;align-items:center;gap:7px;font-size:11px;color:var(--muted)}.status-dot{width:7px;height:7px;border-radius:50%;background:#238562}.status-dot.offline{background:#a66418}.workspace{min-width:0;display:flex;flex-direction:column;background:#eef0f5;position:relative}.chat-header{min-height:76px;background:white;border-bottom:1px solid #e3e5ea;display:flex;align-items:center;padding:0 24px;gap:12px}.chat-header p{font-size:12px;color:var(--muted);margin-top:5px}.chat-header .info-toggle.active{background:var(--light);color:#233a9e}.conversation-body{display:flex;flex:1;min-height:0}.chat-main{display:flex;flex-direction:column;min-width:0;flex:1}.messages{padding:24px 28px;overflow-y:auto;flex:1;overscroll-behavior:contain}.messages-inner{max-width:820px;margin:auto;display:flex;flex-direction:column;gap:12px}.day{align-self:center;background:white;color:#4a505c;font-size:11px;font-weight:600;padding:6px 12px;border-radius:8px;margin:5px 0 12px}.message{display:flex;align-items:flex-end;gap:8px}.message.mine{justify-content:flex-end}.message .small-avatar{width:28px;height:28px;font-size:10px}.bubble{background:white;border-radius:16px 16px 16px 4px;padding:10px 12px 7px;max-width:78%;box-shadow:0 1px 1px #15182108;min-width:90px}.mine .bubble{background:#dce3ff;border-radius:16px 16px 4px 16px}.sender{font-size:12px;font-weight:600;color:#4b2ea0;margin-bottom:5px}.message-text{font-size:14px;line-height:1.5;white-space:pre-wrap;overflow-wrap:anywhere}.message-meta{display:flex;justify-content:flex-end;align-items:center;gap:6px;font-size:10px;color:var(--muted);margin-top:5px}.checks{display:flex}.checks svg{width:15px;height:15px}.checks.read{color:var(--accent)}.message-image{max-width:100%;width:320px;max-height:300px;object-fit:cover;display:block;border-radius:10px;cursor:zoom-in}.message-video{max-width:100%;width:320px;border-radius:10px;background:#1b2030}.file-card{display:flex;gap:12px;align-items:center;padding:12px;background:#ffffffb8;border:1px solid #e3e5ea;border-radius:10px;text-decoration:none;color:inherit;width:290px;max-width:100%;font-size:13px}.file-card .file-name{overflow-wrap:anywhere}.file-card small{font-size:11px;display:block;margin-top:4px}.file-icon{display:grid;place-items:center;width:38px;height:44px;background:#b4441c;color:white;font-size:10px;font-weight:700;border-radius:7px;flex-shrink:0}.file-icon.docx{background:#2b57b5}.file-icon.xlsx{background:#1f6f3a}.composer{padding:16px 24px 12px;background:white;border-top:1px solid #e3e5ea}.composer-box{border:1px solid #dadde4;border-radius:14px;display:flex;align-items:flex-end;padding:6px;gap:4px}.composer textarea{border:0;background:transparent;resize:none;max-height:140px;min-height:44px;width:100%;outline:none;font-size:14px;padding:12px 6px;line-height:20px}.composer .send{background:var(--accent);color:white}.composer-hint{font-size:10px;text-align:right;margin-top:7px;color:var(--muted)}.read-only{text-align:center;padding:18px;font-size:13px;color:var(--muted)}.info-panel{width:300px;flex-shrink:0;background:white;border-left:1px solid #e3e5ea;padding:24px 20px;overflow-y:auto;display:flex;flex-direction:column;gap:26px}.info-profile{text-align:center;display:flex;align-items:center;flex-direction:column;gap:10px}.info-profile small{font-size:12px}.info-panel h3{font-size:11px;text-transform:uppercase;letter-spacing:.8px;color:#4a505c;margin-bottom:14px}.info-panel .member{display:flex;align-items:center;gap:10px;font-size:12px;margin-bottom:12px}.member .avatar{width:32px;height:32px;font-size:11px}.info-panel .file-card{padding:8px 0;border:0;width:100%}.info-panel .file-icon{width:30px;height:35px;font-size:8px}.media-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:6px}.media-grid img,.media-grid video{width:100%;height:72px;object-fit:cover;border-radius:8px;background:#eef0f5}.empty{display:flex;align-items:center;justify-content:center;flex-direction:column;gap:16px;padding:36px;text-align:center;color:var(--muted);flex:1}.empty .logo{width:68px;height:68px;border-radius:20px;background:var(--light);color:var(--accent)}.empty h2{color:#141821;font-size:23px}.empty p{font-size:14px;line-height:1.6;max-width:330px}.empty-list{padding:25px;text-align:center;color:var(--muted);font-size:13px}.offline-banner{padding:9px 16px;background:#fff1cc;color:#7a5200;font-size:12px;text-align:center}.drop-target{outline:3px dashed var(--accent);outline-offset:-8px}.back{display:none}.mobile-nav{display:none}
/* Dialogs */
dialog{border:1px solid var(--border);border-radius:20px;padding:28px;max-width:560px;width:calc(100% - 32px);max-height:90dvh;color:#141821;box-shadow:0 24px 90px #1b203025}dialog::backdrop{background:#1b203070;backdrop-filter:blur(3px)}.dialog-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px}.dialog-head h2{font-size:21px}.field{display:flex;flex-direction:column;gap:7px;font-size:13px}.field input,.field select,input.text,select{border:1px solid #dadde4;border-radius:10px;background:white;min-height:44px;padding:10px 12px;width:100%;color:#141821}.people-picker{max-height:260px;overflow:auto;display:grid;gap:8px}.person-option{display:flex;gap:12px;align-items:center;border:1px solid var(--border);padding:10px;border-radius:12px;font-size:14px}.person-option input{width:18px;height:18px;accent-color:var(--accent)}.person-option small{font-size:12px}.settings-row{padding:14px 0;border-bottom:1px solid var(--border);display:flex;gap:12px;align-items:center;font-size:13px}.notice{background:#f3f4f8;color:var(--muted);padding:14px;border-radius:12px;font-size:13px;line-height:1.6}.upload-row{display:flex;align-items:center;gap:12px;border:1px solid var(--border);padding:12px;border-radius:12px;font-size:13px}.upload-row progress{width:100%;height:6px;accent-color:var(--accent)}.upload-row img{width:42px;height:42px;object-fit:cover;border-radius:6px}.error{color:#ac2936;font-size:13px}.lightbox{width:min(1000px,95vw)}.lightbox img{max-height:75dvh;max-width:100%;display:block;margin:auto}.admin-table{width:100%;border-collapse:collapse;font-size:12px}.admin-table td{padding:10px 4px;border-bottom:1px solid var(--border)}.admin-table small{display:block;font-size:11px}.admin-table .secondary{padding:5px 8px;font-size:11px}#toast{position:fixed;bottom:28px;left:50%;transform:translateX(-50%);background:#1b2030;color:white;font-size:13px;line-height:1.5;padding:12px 20px;border-radius:12px;box-shadow:0 4px 24px #0002;z-index:20;max-width:min(90vw,520px);display:none}#toast.show{display:block}.older{align-self:center}.install-steps{padding-left:20px;font-size:14px;line-height:2}.update-btn{position:fixed;top:12px;left:50%;transform:translateX(-50%);z-index:10;box-shadow:0 4px 20px #0002}
@media(min-width:1600px){.shell{grid-template-columns:72px 380px minmax(0,1fr)}.info-panel{width:340px}}
@media(max-width:1200px){.shell{grid-template-columns:72px 320px minmax(0,1fr)}.info-panel{position:absolute;right:0;top:76px;bottom:0;width:300px;z-index:3;box-shadow:-10px 0 30px #1418210c}.brand{padding:40px}}
@media(max-width:760px){.login{display:block}.brand{display:none}.login-side{min-height:100dvh;padding:30px}.login-card{max-width:380px}.shell{display:block;height:100dvh}.rail{display:none}.conversation-list{height:100%;border:0}.list-head{background:var(--accent);color:white;padding-top:calc(14px + env(safe-area-inset-top))}.list-head .compose{background:#ffffff24;color:white}.list-head .search{background:white}.filters{gap:8px}.filter{background:#ffffff1a;border-color:transparent;color:white}.filter.active{background:white;color:#233a9e}.chat-rows{padding-top:10px}.chat-row{min-height:84px}.chat-row .name{font-size:15px}.chat-row .preview{font-size:13px}.list-foot{display:none}.workspace{display:none;height:100%;position:fixed;inset:0;z-index:2}.shell.conversation-open .workspace{display:flex}.chat-header{padding:calc(8px + env(safe-area-inset-top)) 12px 8px 4px;min-height:72px;background:var(--accent);color:white;gap:6px}.chat-header p{color:#e7ecff}.chat-header h2{font-size:16px}.chat-header .avatar{width:38px;height:38px;font-size:13px}.chat-header .info-toggle.active{background:#ffffff20;color:white}.chat-header .icon-btn:hover{color:white;background:#ffffff20}.back{display:inline-flex}.messages{padding:18px 12px}.bubble{max-width:85%}.message .small-avatar{display:none}.composer{padding:10px 10px calc(10px + env(safe-area-inset-bottom))}.composer-hint{display:none}.composer .camera{display:none}.composer textarea{font-size:16px}.info-panel{top:72px;width:100%;max-width:340px}.mobile-nav{display:flex;justify-content:space-around;flex-shrink:0;border-top:1px solid var(--border);padding:6px 0 calc(6px + env(safe-area-inset-bottom));background:white}.mobile-nav button{min-height:50px;min-width:64px;border:0;background:none;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;color:var(--muted);font-size:10px}.mobile-nav button.active{color:var(--accent)}.message-image,.message-video{width:260px}dialog{padding:22px;max-height:90dvh}.brand h1{font-size:40px}.admin-table td{font-size:11px}}

@media(max-width:760px){.shell.conversation-open .conversation-list{display:none}dialog .row{flex-wrap:wrap}.composer-box{flex-wrap:nowrap}}