:root{--bg:#fff;--text:#191919;--muted:#8a8f98;--line:#e7e9ec;--brand:#3c4a5c;--accent:#ffd84a;--accent-text:#2b2b2b;--chat-bg:#b9cbdc;--bubble-other:#fff;--bubble-mine:#ffe15c;--unread:#e6a800;--danger:#d64545;--hover:#f3f5f7;--radius:14px;color:var(--text);-webkit-font-smoothing:antialiased;font-family:Pretendard,Apple SD Gothic Neo,Malgun Gothic,맑은 고딕,system-ui,sans-serif;font-size:15px}*{box-sizing:border-box}html,body,#root{background:var(--bg);height:100%;margin:0}a{color:#2f6fd6;text-decoration:none}button{font:inherit;cursor:pointer}input,textarea{font:inherit;color:inherit}code{background:#f1f3f5;border-radius:4px;padding:1px 5px}.muted{color:var(--muted)}.small{font-size:13px}.mono{letter-spacing:1px;font-family:ui-monospace,Consolas,monospace}.pad{padding:24px 16px;line-height:1.7}.error{color:var(--danger);margin:4px 0;font-size:14px}.warn{background:#fff6db;border-radius:8px;padding:8px 10px;line-height:1.5}.btn{border:1px solid var(--line);white-space:nowrap;color:var(--text);background:#fff;border-radius:8px;justify-content:center;align-items:center;gap:4px;padding:8px 14px;display:inline-flex}.btn:hover{background:var(--hover)}.btn:disabled{opacity:.5;cursor:default}.btn.primary{background:var(--accent);border-color:var(--accent);color:var(--accent-text);font-weight:600}.btn.primary:hover:not(:disabled){filter:brightness(.96)}.btn.small{padding:5px 10px;font-size:13px}.btn.ghost{background:0 0;border-color:#0000}.btn.ghost:hover{background:#0000000f}.btn.ghost-dark{color:#fff;background:0 0;border-color:#0000}.btn.block{width:100%;padding:12px}.icon-btn{width:38px;height:38px;color:inherit;background:0 0;border:none;border-radius:8px;justify-content:center;align-items:center;font-size:22px;display:inline-flex}.icon-btn:hover{background:#0000000f}.header-actions{align-items:center;gap:6px;display:flex}.center-screen{justify-content:center;align-items:center;min-height:100%;padding:24px 16px;display:flex}.join-bg{background:linear-gradient(160deg,#3c4a5c,#5d6f86)}.card{border-radius:var(--radius);background:#fff;width:100%;max-width:440px;padding:24px;box-shadow:0 6px 24px #00000014}.card h2{margin:0 0 12px;font-size:18px}.join-card{flex-direction:column;gap:12px;max-width:380px;display:flex}.join-card h1{text-align:center;margin:0;font-size:22px}.join-card>p{text-align:center;margin:0 0 4px}.join-logo{width:64px;height:64px;margin:0 auto}.join-card label{color:#555;flex-direction:column;gap:6px;font-size:13px;display:flex}.join-card input,.inline-form input{border:1px solid var(--line);border-radius:8px;outline:none;min-width:0;padding:11px 12px;font-size:15px}.join-card input:focus,.inline-form input:focus{border-color:var(--brand)}.code-input{letter-spacing:3px;text-align:center;font-family:ui-monospace,Consolas,monospace;font-size:20px!important}.join-links{justify-content:space-between;font-size:13px;display:flex}.join-links a:only-child{margin-left:auto}.messenger{height:100%;display:flex;position:relative}.offline-bar{z-index:50;text-align:center;background:#fbe3a0;padding:4px;font-size:13px;position:absolute;top:0;left:0;right:0}.room-list{border-right:1px solid var(--line);flex-direction:column;flex-shrink:0;width:330px;min-height:0;display:flex}.room-list-header{justify-content:space-between;align-items:center;gap:8px;padding:14px 14px 10px 18px;display:flex}.room-list-header h1{text-overflow:ellipsis;white-space:nowrap;margin:0;font-size:19px;overflow:hidden}.notify-banner{text-align:left;background:#fff6db;border:none;border-radius:8px;margin:0 12px 8px;padding:8px 10px;font-size:13px;line-height:1.4}.rooms{flex:1;margin:0;padding:0 0 12px;list-style:none;overflow-y:auto}.room-item{color:inherit;align-items:center;gap:12px;padding:10px 16px;display:flex}.room-item:hover{background:var(--hover)}.room-item.active{background:#eef1f5}.room-main{flex:1;min-width:0}.room-top,.room-bottom{align-items:center;gap:6px;display:flex}.room-name{text-overflow:ellipsis;white-space:nowrap;font-weight:600;overflow:hidden}.room-count{color:var(--muted);font-size:13px}.room-time{color:var(--muted);flex-shrink:0;margin-left:auto;font-size:12px}.room-bottom{margin-top:4px}.room-preview{color:var(--muted);text-overflow:ellipsis;white-space:nowrap;flex:1;font-size:13px;overflow:hidden}.badge{color:#fff;background:#f2453d;border-radius:10px;flex-shrink:0;padding:2px 7px;font-size:11px;font-weight:700}.avatar{color:#fff;-webkit-user-select:none;user-select:none;flex-shrink:0;justify-content:center;align-items:center;font-weight:700;display:flex}.chat-pane{background:var(--chat-bg);flex-direction:column;flex:1;min-width:0;display:flex}.chat-empty{color:#556;flex-direction:column;flex:1;justify-content:center;align-items:center;gap:8px;display:flex}.chat-empty img{opacity:.5}.chat-room{flex-direction:column;flex:1;min-height:0;display:flex;position:relative}.chat-header{background:#b9cbdceb;border-bottom:1px solid #0000000d;align-items:center;gap:6px;padding:8px 10px 8px 16px;display:flex}.back-btn{color:inherit;font-size:30px;display:none}.chat-title{flex:1;align-items:center;gap:8px;min-width:0;display:flex}.chat-title strong{text-overflow:ellipsis;white-space:nowrap;font-size:16px;overflow:hidden}.member-count{color:#4a5563;background:0 0;border:none;padding:2px 4px;font-size:13px}.notice-bar{z-index:2;background:#fff;border-radius:10px;align-items:center;gap:10px;margin:8px 10px 0;padding:10px 12px;display:flex;box-shadow:0 2px 8px #00000014}.notice-icon{font-size:18px}.notice-content{cursor:pointer;flex:1;min-width:0}.notice-text{text-overflow:ellipsis;white-space:nowrap;overflow:hidden}.notice-bar.open .notice-text{white-space:pre-wrap;word-break:break-word;max-height:40vh;overflow-y:auto}.message-list{flex:1;padding:10px 14px 16px;overflow-y:auto}.load-older{text-align:center;color:#556;padding:6px;font-size:12px}.day-divider{text-align:center;margin:16px 0 10px}.day-divider span{color:#fff;background:#0000001f;border-radius:12px;padding:4px 12px;font-size:12px}.system-msg{text-align:center;color:#4a5563;background:#ffffff59;border-radius:12px;width:fit-content;max-width:90%;margin:10px auto;padding:4px 12px;font-size:12px}.msg-row{align-items:flex-end;gap:6px;margin-top:4px;display:flex}.msg-row.group-start{margin-top:12px}.msg-row.mine{justify-content:flex-end}.msg-row.other{align-items:flex-start}.avatar-slot{flex-shrink:0;width:38px}.msg-body{min-width:0;max-width:calc(100% - 50px)}.sender{color:#3b4350;margin:0 0 4px 2px;font-size:13px}.company{color:#5d6875}.admin-tag,.me-tag{background:var(--brand);color:#fff;vertical-align:1px;border-radius:4px;margin-left:6px;padding:1px 5px;font-size:10px}.me-tag{background:#8a8f98}.msg-line{align-items:flex-end;gap:6px;display:flex}.bubble{word-break:break-word;border-radius:14px;max-width:min(520px,72vw);position:relative}.bubble.text{white-space:pre-wrap;background:var(--bubble-other);padding:8px 12px;line-height:1.45}.mine .bubble.text{background:var(--bubble-mine)}.group-start.other .bubble{border-top-left-radius:4px}.group-start.mine .bubble{border-top-right-radius:4px}.bubble.notice{outline:2px solid #f2a93b}.bubble.image{background:0 0;line-height:0;overflow:hidden}.bubble.image.pending img{opacity:.55;max-width:240px;max-height:320px}.bubble.image.failed img{opacity:.3;filter:grayscale()}.image-thumb{background:#ffffff80;border:none;border-radius:14px;max-width:100%;max-height:360px;padding:0;display:block;overflow:hidden}.image-thumb img{object-fit:cover;width:100%;height:100%;display:block}.image-expired{color:#667;background:#ffffffb3;border-radius:14px;padding:12px 14px;font-size:13px;line-height:1.4}.msg-meta{color:#4a5563;flex-direction:column;flex-shrink:0;align-items:flex-end;gap:1px;font-size:11px;display:flex}.other .msg-meta{align-items:flex-start}.unread{color:var(--unread);font-weight:700}.pending-actions{gap:4px;display:flex}.pending-actions button{background:#fff;border:none;border-radius:6px;padding:3px 6px;font-size:11px}.new-below{color:#fff;z-index:5;background:#28303cd9;border:none;border-radius:18px;padding:7px 16px;font-size:13px;position:absolute;bottom:76px;left:50%;transform:translate(-50%)}.composer{padding:10px 12px;padding-bottom:max(10px, env(safe-area-inset-bottom));border-top:1px solid var(--line);background:#fff;align-items:flex-end;gap:8px;display:flex}.composer textarea{resize:none;background:0 0;border:none;outline:none;flex:1;min-height:38px;max-height:140px;padding:9px 4px;line-height:1.4}.composer .attach{color:#666;font-size:26px}.composer .send{padding:9px 16px}.drop-overlay{color:#fff;z-index:20;pointer-events:none;background:#3c4a5cbf;border:3px dashed #fff;justify-content:center;align-items:center;font-size:18px;display:flex;position:absolute;inset:0}.modal-backdrop,.drawer-backdrop,.menu-backdrop{z-index:100;position:fixed;inset:0}.modal-backdrop{background:#00000073;justify-content:center;align-items:center;padding:16px;display:flex}.modal{border-radius:var(--radius);background:#fff;flex-direction:column;width:100%;max-width:520px;max-height:90vh;padding:20px;display:flex}.modal h3{margin:0 0 12px}.send-previews{grid-template-columns:repeat(auto-fill,minmax(110px,1fr));gap:8px;min-height:0;display:grid;overflow-y:auto}.send-previews img{aspect-ratio:1;object-fit:cover;background:#f1f3f5;border-radius:8px;width:100%}.send-previews.single{display:block}.send-previews.single img{aspect-ratio:auto;object-fit:contain;max-height:55vh}.modal-actions{justify-content:flex-end;gap:8px;margin-top:16px;display:flex}.viewer{z-index:120;background:#000000eb;flex-direction:column;justify-content:center;align-items:center;display:flex;position:fixed;inset:0}.viewer-bar{color:#ddd;background:linear-gradient(#0009,#0000);justify-content:space-between;align-items:center;gap:8px;padding:10px 14px;font-size:13px;display:flex;position:absolute;top:0;left:0;right:0}.viewer-bar>div{gap:6px;display:flex}.viewer img{object-fit:contain;max-width:96vw;max-height:calc(100vh - 80px);margin-top:40px}.context-menu{background:#fff;border-radius:10px;min-width:160px;margin:0;padding:6px 0;list-style:none;position:fixed;box-shadow:0 8px 28px #0003}.context-menu li{cursor:pointer;padding:9px 16px;font-size:14px}.context-menu li:hover{background:var(--hover)}.drawer-backdrop{background:#0000004d}.drawer{background:#fff;flex-direction:column;width:min(320px,88vw);display:flex;position:absolute;top:0;bottom:0;right:0;box-shadow:-6px 0 24px #0000001f}.drawer header{border-bottom:1px solid var(--line);justify-content:space-between;align-items:center;padding:12px 12px 12px 18px;display:flex}.invite-box{border-bottom:1px solid var(--line);flex-direction:column;gap:6px;padding:14px 18px;display:flex}.invite-code{letter-spacing:2px;font-family:ui-monospace,Consolas,monospace;font-size:22px;font-weight:700}.member-list{margin:0;padding:8px 0;list-style:none;overflow-y:auto}.member-list li{align-items:center;gap:12px;padding:8px 18px;display:flex}.toast{color:#fff;z-index:200;text-align:center;background:#1e2228e6;border-radius:20px;max-width:90vw;padding:10px 18px;font-size:14px;position:fixed;bottom:90px;left:50%;transform:translate(-50%)}.admin-page{flex-direction:column;gap:16px;max-width:880px;margin:0 auto;padding:16px;display:flex}.admin-page .card{max-width:none}.admin-header{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:8px;display:flex}.admin-header h1{margin:0;font-size:20px}.inline-form{flex-wrap:wrap;gap:8px;display:flex}.inline-form input{flex:1;min-width:140px}.table-wrap{overflow-x:auto}.room-table{border-collapse:collapse;width:100%;font-size:14px}.room-table th,.room-table td{text-align:left;border-bottom:1px solid var(--line);white-space:nowrap;padding:10px 8px}.room-table th{color:var(--muted);font-size:13px;font-weight:500}.row-actions{justify-content:flex-end;gap:6px;display:flex}@media (width<=760px){.room-list{border-right:none;width:100%}.messenger.has-room .room-list,.messenger:not(.has-room) .chat-pane{display:none}.back-btn{display:inline-flex}.chat-header{padding-left:4px}.chat-header .header-actions .btn:nth-child(2){display:none}.composer textarea::placeholder{font-size:13px}}