.message-badge{display:inline-flex;align-items:center;justify-content:center;background:#c84741;color:#fff;border-radius:999px;min-width:21px;padding:2px 6px;font-size:11px;font-weight:800;margin-left:6px}.message-badge[hidden]{display:none}.message-dock{position:fixed;right:20px;bottom:20px;z-index:60;border:0;border-radius:999px;padding:14px 18px;background:var(--season-accent,#193e69);color:white;font-weight:700;box-shadow:0 5px 24px #14223830;font-size:14px}.message-drawer{position:fixed;right:20px;bottom:80px;z-index:65;width:min(400px,calc(100vw - 30px));height:min(610px,calc(100vh - 110px));height:min(610px,calc(100dvh - 110px));background:white;border:1px solid #d8e2ed;border-radius:17px;box-shadow:0 12px 55px #14223835;display:flex;flex-direction:column;overflow:hidden;color:#142238}.message-drawer-title{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:14px 17px;background:var(--season-soft,#edf3fa);border-bottom:1px solid #dfe6ef}.message-drawer-title>div{display:flex;align-items:center;gap:14px}.message-drawer-title a{font-size:12px;text-decoration:underline}.message-drawer-title button{border:0;background:transparent;font-size:28px;color:#193e69;padding:0 5px;line-height:1}.message-conversation{display:flex;flex-direction:column;flex:1;min-height:0;overflow:hidden}.message-peer{padding:13px 16px;border-bottom:1px solid #e2e9f0;flex-shrink:0}.message-peer strong,.message-peer small{display:block;overflow-wrap:anywhere}.message-peer small{color:#62748a;font-size:12px;margin-top:5px;line-height:1.6}.message-peer a{font-size:12px;color:#265386;text-decoration:underline;display:block;margin-top:6px}.message-account-note{margin:8px 15px 0;padding:9px 12px;background:#fff4df;border-radius:8px;font-size:12px;line-height:1.6;flex-shrink:0}.message-account-note[hidden]{display:none}.message-history-controls{display:flex;justify-content:center;padding:5px 10px;flex-shrink:0}.message-small{font-size:12px!important;padding:6px 10px!important}.message-log{flex:1;overflow:auto;padding:12px 16px;background:#f6f8fb;min-height:140px;overscroll-behavior:contain;display:flex;flex-direction:column;gap:12px}.message-bubble{max-width:88%;border:1px solid #dfe6ef;border-radius:13px;padding:11px 13px;background:white;align-self:flex-start;overflow-wrap:anywhere}.message-bubble>strong{font-size:11px;color:#5e7186}.message-bubble p{white-space:pre-wrap;overflow-wrap:anywhere;margin:6px 0;font-size:14px;line-height:1.65}.message-bubble small{font-size:10px;display:block;color:#62748a;line-height:1.5}.message-own{align-self:flex-end;background:var(--season-soft,#e6f0fc);border-color:var(--season-line,#c6daed)}.message-empty{margin:auto;padding:25px 12px;text-align:center;color:#62748a;font-size:14px;line-height:1.8}.message-fetch-status{margin:0;padding:0 14px;font-size:12px;flex-shrink:0}.message-fetch-status.error{padding:10px;margin:5px 12px}.message-compose{padding:12px 14px 10px;flex-shrink:0;border-top:1px solid #dfe6ef;background:white}.message-input-label{display:block;font-size:0}.message-compose textarea{display:block;width:100%;min-height:66px;max-height:140px;resize:vertical;border:1px solid #bdcbd9;border-radius:9px;font:14px/1.6 "Yu Gothic",Meiryo,Arial,sans-serif;padding:10px;color:#142238;background:white}.message-compose textarea:focus{outline:2px solid #8ebadd;outline-offset:1px}.message-compose-tools{display:flex;align-items:center;gap:8px;justify-content:space-between;margin:7px 0}.message-emoji{display:flex;gap:2px}.message-emoji button{border:0;background:transparent;border-radius:5px;padding:4px 5px;font-size:18px}.message-emoji button:hover{background:#edf3fa}.message-character-count{font-size:10px;color:#62748a}.message-compose .button{padding:9px 14px;font-size:13px}.message-compose>.help{font-size:10px}.message-send-status{font-size:12px;margin:6px 0 0;padding:0;line-height:1.5}.message-send-status.error,.message-send-status.success{padding:8px;font-size:12px}.message-full{max-width:850px;margin:0 auto;padding:0;overflow:hidden;height:680px;height:min(680px,calc(100dvh - 100px));min-height:450px}.message-navigation{justify-content:flex-start;margin-bottom:22px}.message-inbox-layout{display:grid;grid-template-columns:330px minmax(0,1fr);gap:20px;align-items:start}.message-sidebar{padding:20px}.message-sidebar .field{margin:0 0 14px}.message-filter{display:flex;align-items:center;gap:7px;font-size:13px;margin-bottom:12px}.message-thread{display:block;width:100%;padding:14px;text-align:left;border:1px solid #dfe6ef;border-radius:11px;background:white;color:#142238;margin:8px 0;overflow-wrap:anywhere}.message-thread>div{display:flex;justify-content:space-between;gap:10px;align-items:center}.message-thread small{display:block;margin-top:6px;font-size:11px;color:#62748a;line-height:1.6}.message-thread p{margin:8px 0;font-size:13px;line-height:1.6;overflow:hidden;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical}.message-thread.is-current{outline:2px solid var(--season-accent,#356caa);background:var(--season-soft,#edf5ff)}.message-pagination{justify-content:flex-start;margin-top:16px}.message-pagination .button{font-size:12px;padding:8px 12px}.message-teacher-panel{padding:0;overflow:hidden;height:720px;height:min(720px,calc(100dvh - 110px));min-height:480px;position:sticky;top:15px}.message-teacher-panel .message-conversation{height:100%}.message-dock:focus-visible,.message-thread:focus-visible,.message-drawer-title button:focus-visible{outline:3px solid #8ebadd;outline-offset:4px}@media(max-width:800px){.message-inbox-layout{grid-template-columns:1fr}.message-teacher-panel{position:static;min-height:480px}.message-sidebar #message-thread-list{max-height:300px;overflow:auto}.message-dock{bottom:16px;right:14px;font-size:13px;padding:12px 15px}.message-drawer{right:12px;bottom:72px;width:calc(100vw - 24px)}.message-full{min-height:420px}.message-compose{padding:10px}.message-log{padding:12px}.message-bubble{max-width:92%}}@media(max-height:550px){.message-drawer{bottom:60px;height:calc(100dvh - 75px)}.message-account-note{display:none}.message-log{min-height:65px}.message-compose textarea{min-height:44px;height:50px}}