:root{font-family:-apple-system,BlinkMacSystemFont,'Hiragino Sans',sans-serif;color:#173e31;background:#f4f7f5}*{box-sizing:border-box}body{margin:0}main{max-width:1060px;margin:auto;padding:24px}header{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:20px}.brand{font-size:12px;font-weight:800;color:#628474;letter-spacing:.14em}h1{font-size:26px;margin:8px 0}h2{font-size:20px;margin:0 0 16px}h3{font-size:16px}.card{background:#fff;border:1px solid #dce7df;border-radius:18px;padding:24px;margin-bottom:16px;min-width:0}.muted,small{color:#667e70;font-size:13px;line-height:1.7}a{color:#167750}button,.button{display:inline-block;border:0;border-radius:11px;background:#167b55;color:white;padding:12px 18px;font:inherit;font-weight:700;cursor:pointer;text-decoration:none}button:disabled{opacity:.5;cursor:default}.secondary{background:#e8f3ec;color:#176148}.danger{background:#fff0ee;color:#a3342b}.hidden{display:none!important}label{display:block;font-size:13px;font-weight:650;margin-bottom:8px}input,select,textarea{width:100%;min-width:0;padding:12px;border:1px solid #cbdacf;border-radius:10px;font:inherit;font-size:16px;background:#fff;color:#173e31}textarea{min-height:90px;resize:vertical;line-height:1.7}.grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.field{margin:16px 0}.row,.tabs{display:flex;gap:10px;flex-wrap:wrap;align-items:center}.tabs{margin:20px 0}.tabs button{background:#e8f3ec;color:#176148}.tabs button.active{background:#167b55;color:white}.message{background:#e7f3eb;border-radius:12px;padding:14px;margin:16px 0;font-size:14px;line-height:1.7}.message.error{background:#fff0ee;color:#a3342b}.entry{border:1px solid #dfe9e2;border-radius:12px;padding:16px;margin:12px 0;overflow-wrap:anywhere}.entry p{font-size:14px;line-height:1.7}.pill{display:inline-block;padding:4px 9px;border-radius:99px;background:#e6f3eb;color:#197249;font-size:12px}.pager{display:flex;justify-content:center;gap:12px;align-items:center;margin:20px 0}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:3px solid #8bc8a8;outline-offset:3px}.clock{font-size:52px;font-weight:750;font-variant-numeric:tabular-nums;text-align:center;margin:12px 0}.terminal{max-width:760px}.terminal .actions{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.terminal .actions button{font-size:24px;min-height:100px}.terminal .field label{font-size:16px}.terminal select,.terminal input{font-size:22px;min-height:64px}.terminal .success{text-align:center;padding:28px}.terminal .success strong{display:block;font-size:30px;color:#167b55;margin:20px 0}.session-entry{border:1px solid #dce7df;border-radius:12px;padding:16px;margin:16px 0}.session-entry .grid{gap:12px}.session-entry label{font-size:12px}.chat-shell{height:calc(100dvh - 48px);min-height:440px;display:grid;grid-template-rows:auto 1fr;max-width:1160px}.chat-shell header{margin-bottom:16px}.chat-layout{display:grid;grid-template-columns:280px minmax(0,1fr);min-height:0;border:1px solid #dce7df;border-radius:18px;background:white;overflow:hidden}.chat-sidebar{display:flex;flex-direction:column;min-height:0;padding:16px;background:#fbfdfb;border-right:1px solid #dce7df}.room-list{overflow:auto;margin-top:14px}.room-button{width:100%;text-align:left;padding:13px 12px;background:transparent;color:#173e31;border:1px solid transparent;border-radius:12px;margin-bottom:6px;font-weight:650}.room-button.active{background:#e7f3eb;border-color:#bddbc7}.room-button small{display:block;margin-top:6px;font-weight:400}.unread{float:right;background:#168056;color:white;min-width:22px;border-radius:50px;font-size:11px;padding:3px 6px;text-align:center}.chat-main{min-height:0;display:grid;grid-template-rows:auto minmax(0,1fr) auto}.chat-heading{padding:16px 20px;border-bottom:1px solid #e4ece6}.chat-heading h2{margin:0}.chat-context{margin-top:8px;font-size:12px;color:#648271}.chat-thread{min-height:0;overflow:auto;padding:16px 20px;overscroll-behavior:contain}.bubble{max-width:85%;width:fit-content;margin:0 0 18px;padding:12px 14px;background:#f1f5f2;border-radius:14px;overflow-wrap:anywhere}.bubble.own{margin-left:auto;background:#e3f2e8}.bubble .sender{font-size:11px;color:#567465;margin-bottom:8px}.bubble p{margin:0;white-space:pre-wrap;font-size:15px;line-height:1.7}.bubble time{display:block;text-align:right;font-size:10px;color:#6b8376;margin-top:8px}.bubble img,.bubble video{display:block;max-width:100%;max-height:300px;border-radius:10px;margin:10px 0}.attachment{display:block;font-size:13px;margin-top:10px}.compose{padding:14px 18px;border-top:1px solid #dfe9e2;background:white}.compose textarea{min-height:52px;max-height:130px;resize:none}.compose .row{justify-content:space-between;margin-top:10px}.compose .file-button{cursor:pointer;border-radius:9px;padding:10px 12px;background:#eaf3ed;margin:0;font-size:13px;font-weight:650}.compose input[type=file]{position:absolute;width:1px;height:1px;opacity:0}.file-status{font-size:12px;overflow-wrap:anywhere;margin:8px 0;color:#657d6f}.chat-empty{display:grid;place-content:center;text-align:center;padding:24px;color:#6b8276}.new-room{max-width:760px;margin:auto}.people-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px;max-height:250px;overflow:auto;padding:8px;border:1px solid #dce7df;border-radius:12px}.people-grid label{display:flex;align-items:center;gap:10px;background:#f4f8f5;padding:10px;margin:0;cursor:pointer}.people-grid input{width:20px;height:20px;flex-shrink:0}.line-status{font-size:12px;padding:10px 0}.line-code{font-size:28px;letter-spacing:.12em;font-weight:800;overflow-wrap:anywhere}.chat-mobile-back{display:none}.chat-loading{padding:20px;color:#657d6f}#chatNotice{font-size:12px;margin:8px 0;min-height:16px}#older{display:block;margin:0 auto 18px;padding:8px 12px;font-size:12px}.width-auto{width:auto}.check{display:flex;align-items:center;gap:8px}.check input{width:20px;height:20px}
@media(max-width:650px){main{padding:14px}.card{padding:18px}h1{font-size:22px}.grid{grid-template-columns:1fr}header{align-items:start}header .button{font-size:12px;padding:10px}.terminal .clock{font-size:44px}.terminal .actions button{font-size:21px;min-height:80px}.chat-shell{padding:0;height:100dvh;min-height:350px}.chat-shell>header{padding:12px 14px;margin:0}.chat-shell h1{font-size:19px;margin:4px 0}.chat-shell .brand{font-size:10px}.chat-layout{border-radius:0;border-left:0;border-right:0;grid-template-columns:1fr}.chat-sidebar{border-right:0;padding:16px}.chat-main{display:none}.chat-shell.room-open .chat-sidebar{display:none}.chat-shell.room-open .chat-main{display:grid}.chat-mobile-back{display:inline-block;font-size:12px;padding:8px 11px;margin-bottom:10px}.chat-heading{padding:12px 16px}.chat-heading h2{font-size:18px}.chat-thread{padding:14px}.compose{padding:10px 14px;padding-bottom:max(10px,env(safe-area-inset-bottom))}.bubble{max-width:90%}.chat-shell .new-room{margin:14px}.people-grid{grid-template-columns:1fr}.chat-shell #needLogin{margin:14px}.chat-shell .message{margin:10px 14px}.terminal .grid{grid-template-columns:repeat(2,minmax(0,1fr))}}

.read-receipt{margin-top:8px;font-size:11px;color:#496957;text-align:right}.read-receipt summary{cursor:pointer;padding:5px 0;min-height:28px}.read-receipt summary:focus-visible{outline:2px solid #167b55;outline-offset:2px}.read-receipt div{display:flex;flex-wrap:wrap;justify-content:flex-end;gap:5px;margin-top:6px;max-width:300px}.read-receipt span{display:inline-block;background:#fff;border:1px solid #c8ddcf;border-radius:20px;padding:4px 8px;color:#234f3b}.receipt-hint{display:block;margin-top:8px;font-size:11px;color:#657c6c}