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6px;overflow-wrap:anywhere}.message-stream{display:flex;flex-direction:column;gap:12px;padding:22px;overflow:auto;height:420px;background:#fafcff}.message-bubble{max-width:85%;align-self:flex-start;padding:12px 16px;border-radius:14px 14px 14px 3px;background:#edf1f6;overflow-wrap:anywhere}.message-bubble.mine{align-self:flex-end;background:#e2efff;border-radius:14px 14px 3px}.message-text{white-space:pre-wrap}.message-bubble time{display:block;font-size:11px;color:#586b82;margin-top:8px}.message-file{display:block;margin-top:8px;font-weight:600;color:#164d89}.message-compose{padding:16px 22px;border-top:1px solid #dce4ef}.message-compose textarea{resize:vertical;min-height:76px}.message-compose input[type=file]{padding:8px;font-size:13px}.compose-footer{display:flex;gap:14px;align-items:center;justify-content:space-between;margin-top:12px}.conversation>.notice{margin:12px}@media(max-width:700px){.message-layout{grid-template-columns:1fr;margin:0 8px 16px}.message-sidebar{max-height:220px;border-right:0;border-bottom:1px solid #dae3ef}.thread-item{padding:10px}.message-stream{height:340px;padding:14px}.conversation-heading{padding:14px;align-items:flex-start;flex-wrap:wrap}.message-compose{padding:14px}.message-welcome{padding:36px 20px}.account-nav{justify-content:center;padding:10px 6px}.message-actions{padding:12px 8px}.message-actions button{flex:1}.compose-footer{flex-wrap:wrap}.message-bubble{max-width:95%}}.messages-screen .bar .muted{color:#dbeafe}html{-webkit-text-size-adjust:100%}body{padding-left:env(safe-area-inset-left,0px);padding-right:env(safe-area-inset-right,0px)}.app{min-height:100vh;min-height:100dvh;padding-top:env(safe-area-inset-top,0px)}header.bar{top:env(safe-area-inset-top,0px)}header.bar h1,.lesson-row .meta,.student .name{min-width:0;overflow-wrap:anywhere}input,textarea,select{min-width:0}.app.messages-app{max-width:1280px;width:100%;margin:0 auto}.messages-screen{width:100%;min-width:0}.install-app{width:100%;max-width:800px;margin:0 auto;padding:16px 20px calc(20px + env(safe-area-inset-bottom,0px));font-size:14px;color:var(--muted)}.install-app summary{cursor:pointer;min-height:44px;padding:12px 0;color:var(--brand-dark)}.install-app details{border-top:1px solid var(--line)}.install-app p{line-height:1.6;overflow-wrap:anywhere}@media(max-width:420px){.install-app{padding-bottom:calc(90px + env(safe-area-inset-bottom,0px))}.with-bottom-nav{padding-bottom:calc(86px + env(safe-area-inset-bottom,0px))}}@media(max-width:700px){.message-layout{grid-template-columns:minmax(0,1fr)}.message-compose input[type=file]{font-size:16px}}@media(prefers-reduced-motion:reduce){*,*:before,*:after{scroll-behavior:auto!important;animation:none!important;transition:none!important}}@media print{.install-app{display:none!important}}.admin-controls{border:0;padding:0;margin:0;min-width:0}.admin-controls:disabled{opacity:.75}.admin-jump{display:flex;flex-wrap:wrap;gap:.55rem;margin:1rem 0}.admin-jump a{padding:.55rem .8rem;background:#edf5f8;border-radius:.6rem;color:#17556a;text-decoration:none}.admin-main section{scroll-margin-top:1rem}.admin-main details{margin:.8rem 0}.admin-main summary{cursor:pointer;padding:.5rem 0;font-weight:600}.admin-student-picker{max-height:20rem;overflow:auto;margin:1rem 0}.admin-check{display:flex;align-items:center;gap:.65rem;padding:.5rem}.admin-check input{width:1.2rem;min-height:1.2rem;flex:0 0 auto}