*{box-sizing:border-box}body{margin:0;font-family:Arial,'Noto Sans KR',sans-serif;background:#f4f6f8;color:#20242a}.hidden{display:none!important}.center-card{width:380px;margin:12vh auto;background:#fff;padding:34px;border-radius:16px;box-shadow:0 12px 45px #0002}.center-card h1{font-size:24px;margin:0 0 24px}.center-card input,.center-card button{width:100%;height:44px;margin:6px 0;border-radius:9px;border:1px solid #d7dce2;padding:0 13px}.center-card button,#sendBtn{background:#ff6a00;color:#fff;border:0;font-weight:700;cursor:pointer}.error{color:#c62828;margin-top:10px;min-height:20px}.app{height:100vh;display:grid;grid-template-columns:330px 1fr}.sidebar{background:#fff;border-right:1px solid #e6e9ed;padding:18px;overflow:auto}.brand{font-size:22px;font-weight:800;margin-bottom:24px}.sidebar h3{font-size:13px;color:#777;margin:18px 8px 8px}.list-item{padding:12px;border-radius:10px;cursor:pointer;margin:3px 0}.list-item:hover{background:#f4f5f7}.list-item .sub{font-size:12px;color:#7b8188;margin-top:4px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.badge{float:right;background:#ff6a00;color:#fff;border-radius:99px;padding:2px 7px;font-size:11px}.chat{display:grid;grid-template-rows:64px 1fr 70px;background:#eef1f5}.chat header{display:flex;align-items:center;padding:0 22px;background:#fff;border-bottom:1px solid #e3e6ea;font-weight:700}.messages{padding:24px;overflow:auto}.bubble-row{display:flex;margin:10px 0}.bubble-row.mine{justify-content:flex-end}.bubble{max-width:65%;background:#fff;border-radius:14px;padding:10px 13px;box-shadow:0 1px 2px #0001;white-space:pre-wrap;word-break:break-word}.mine .bubble{background:#ff6a00;color:#fff}.sender{font-size:11px;color:#777;margin-bottom:4px}.chat footer{display:flex;gap:10px;padding:12px 18px;background:#fff;border-top:1px solid #e3e6ea}.chat footer input{flex:1;border:1px solid #d7dce2;border-radius:10px;padding:0 14px}.chat footer button{width:88px;border-radius:10px}@media(max-width:800px){.app{grid-template-columns:260px 1fr}}

.otp-area{margin-top:10px;padding-top:12px;border-top:1px solid #edf0f3}.otp-title{font-weight:800;margin:4px 0 6px}.otp-desc{font-size:12px;color:#6f7780;line-height:1.5;margin-bottom:6px}.center-card button.secondary{background:#fff;color:#555;border:1px solid #d7dce2}

.chat-header{display:flex!important;justify-content:space-between;gap:12px}.header-close{margin-left:auto;width:34px;height:34px;border:0;border-radius:8px;background:transparent;color:#667085;font-size:24px;cursor:pointer}.header-close:hover{background:#eef1f5;color:#111}.room-item{display:flex;align-items:center;gap:6px;padding-right:6px}.room-main{flex:1;min-width:0;padding:6px}.room-hide{opacity:0;width:28px;height:28px;border:0;border-radius:7px;background:transparent;color:#98a2b3;font-size:18px;cursor:pointer}.room-item:hover .room-hide{opacity:1}.room-hide:hover{background:#edf0f4;color:#333}

/* v0.9 message interactions */
.chat-header{position:relative}.head-actions{display:flex;align-items:center;gap:4px}.header-action{width:34px;height:34px;border:0;border-radius:8px;background:transparent;cursor:pointer;font-size:20px;color:#667085}.header-action:hover{background:#eef1f5}.typing{font-size:11px;color:#7b8794;margin-left:12px}.message-wrap{max-width:72%;position:relative}.mine .message-wrap{display:flex;flex-direction:column;align-items:flex-end}.reply-preview{font-size:11px;color:#667085;background:#ffffff99;border-left:3px solid #98a2b3;padding:5px 8px;border-radius:6px;margin-bottom:4px;max-width:100%;overflow:hidden;text-overflow:ellipsis}.bubble-line{display:flex;align-items:flex-end;gap:5px}.read-count{font-size:10px;color:#d1a900;font-weight:800;margin-bottom:2px}.bubble.deleted{color:#8f98a3;font-style:italic;background:#ffffff99}.msg-actions{display:none;gap:3px;margin-top:3px}.message-wrap:hover .msg-actions{display:flex}.msg-actions button,.reactions button{border:1px solid #dfe3e8;background:#fff;border-radius:12px;padding:2px 7px;font-size:10px;cursor:pointer}.reactions{display:flex;gap:4px;margin-top:4px}.reply-bar{display:flex;justify-content:space-between;align-items:center;background:#f5f6f8;border:1px solid #e7e9ed;border-radius:8px;padding:7px 10px;margin-bottom:7px;color:#667085;font-size:11px}.reply-bar button{border:0;background:transparent;font-size:18px;cursor:pointer}.composer-row{display:flex;gap:10px}.chat footer{display:block}.chat footer textarea{flex:1;width:100%;min-height:52px;max-height:110px;resize:none;border:1px solid #d7dce2;border-radius:10px;padding:10px 12px;line-height:1.45;font:inherit}.composer-row #sendBtn{width:88px;border-radius:10px}.search-panel{position:absolute;top:64px;right:14px;width:360px;max-height:70vh;background:#fff;border:1px solid #dfe4ea;border-radius:12px;box-shadow:0 12px 30px #0002;z-index:5;padding:10px}.search-row{display:flex;gap:6px}.search-row input{flex:1;height:38px;border:1px solid #d7dce2;border-radius:8px;padding:0 10px}.search-row button{border:0;border-radius:8px;padding:0 10px;cursor:pointer}.search-results{max-height:55vh;overflow:auto;margin-top:8px}.search-result{padding:9px 7px;border-bottom:1px solid #f0f1f3;font-size:12px;word-break:break-word}.search-result b{display:block;margin-bottom:3px}.search-empty{padding:18px;color:#8b94a0;text-align:center}

.room-info-dialog{width:min(90vw,500px);border:1px solid #ddd;border-radius:12px;padding:24px;color:#273140;background:#fff}
.room-info-dialog::backdrop{background:#0005}.room-info-dialog input:not([type=checkbox]),.room-info-dialog select{box-sizing:border-box;width:100%;margin:8px 0;padding:8px}
.room-info-controls{display:flex;gap:6px;flex-wrap:wrap}.room-info-controls button{padding:8px}.room-info-candidates{max-height:160px;overflow:auto}.room-info-candidates label{display:flex;gap:8px;padding:6px}.room-info-candidates input{width:auto}

/* v0.12: original navigation and explicit per-user deletion. */
.reply-preview, #replyText {cursor:pointer; text-align:left; white-space:normal;}
.reply-preview:focus-visible {outline:2px solid #cc9e40; outline-offset:2px;}
.quote-history {display:flex; align-items:center; justify-content:center; gap:8px; padding:8px; flex-wrap:wrap; background:#fff8dd;}
.quote-history.hidden {display:none;}
.quote-highlight {background:rgba(255,189,65,.24); border-radius:8px;}
.message-delete-dialog {max-width:420px; border:1px solid #e4e7eb; border-radius:12px; padding:24px;}
.message-delete-dialog button {display:block; width:100%; margin:8px 0; padding:10px;}
.message-delete-dialog p {white-space:pre-wrap;}
.msg-actions button:disabled,.quote-history button:disabled,.message-delete-dialog button:disabled {opacity:.45; cursor:default;}

.attachment-list{display:flex;flex-direction:column;gap:6px;margin-top:8px}.attachment-list button{text-align:left;overflow-wrap:anywhere;padding:8px}

#messages{position:relative;overflow-anchor:none}