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.rtc-participant-panel{scrollbar-gutter:stable;grid-area:2/1;align-self:stretch;min-height:0;max-height:none;padding:10px;overflow-y:auto}.rtc-participant-panel-chat-hidden{pointer-events:none;overflow:hidden!important}.rtc-participant-panel-chat-hidden .rtc-grid>:not(.rtc-provider-tile),.rtc-participant-panel-chat-hidden .rtc-participant-indicators,.rtc-stage-sharing .rtc-participant-panel-chat-hidden .rtc-provider-tile{visibility:hidden}.rtc-participant-offline{color:#dceefa;background:#0d293f;border:1px solid #274b67;border-radius:10px;grid-template-columns:auto minmax(0,1fr) auto;align-items:center;gap:9px;min-height:54px;padding:8px 10px;display:grid}.rtc-offline-avatar{color:#a9c5dc;background:#173f5d;border-radius:50%;place-items:center;width:34px;height:34px;font-size:13px;font-weight:800;display:grid}.rtc-participant-offline>div:nth-child(2){flex-direction:column;gap:2px;min-width:0;display:flex}.rtc-participant-offline 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.form-error{margin:0}.rtc-classroom-toolbar{z-index:6;justify-content:space-between;align-items:center;gap:12px;padding-top:2px;display:flex;position:relative}.rtc-device-settings{flex:none;position:relative}.rtc-device-settings>summary{color:#fff;cursor:pointer;background:#102f49;border:1px solid #315872;border-radius:8px;align-items:center;min-height:40px;padding:9px 14px;font-size:12px;font-weight:800;list-style:none;display:inline-flex}.rtc-device-settings>summary:before{content:"⚙";margin-right:7px}.rtc-device-settings>summary::-webkit-details-marker{display:none}.rtc-device-settings[open] .rtc-device-row{z-index:10;background:#0b2337;border:1px solid #315872;border-radius:12px;grid-template-columns:repeat(3,minmax(0,1fr));width:min(680px,80vw);padding:12px;position:absolute;bottom:calc(100% + 8px);right:0;box-shadow:0 18px 45px #00000061}@media (min-width:901px){.classroom-page{flex-direction:column;height:100dvh;min-height:100vh;padding:14px clamp(18px,3vw,42px) 16px;display:flex;overflow:hidden}.classroom-header{flex:none}.classroom-heading{flex:none;margin:8px 0 10px}.classroom-heading h1{margin:3px 0;font-size:clamp(24px,2.6vw,38px)}.classroom-heading p{margin:3px 0}.rtc-shell{flex:1;grid-template-rows:auto minmax(0,1fr) auto auto;gap:9px;min-height:0}.rtc-stage{align-items:stretch;height:100%;overflow:hidden}.rtc-stage,.rtc-stage-camera{min-height:0}.rtc-primary-content{height:100%;min-height:0;display:grid}.rtc-stage-camera .rtc-primary-content{min-height:0}.rtc-stage-camera .rtc-provider-tile{height:100%}.rtc-share-primary{aspect-ratio:auto;height:100%;min-height:0}.rtc-whiteboard-primary{grid-template-rows:auto minmax(0,1fr);height:100%;min-height:0}.whiteboard-surface{aspect-ratio:auto;height:100%;min-height:0}.rtc-interaction-sidebar{height:100%}.rtc-controls{flex-wrap:nowrap}.rtc-controls .button{min-height:40px;padding:9px 13px;font-size:12px}}@media (max-width:900px){.classroom-page{overflow:visible}.rtc-shell{min-height:0}.rtc-stage{overflow:visible}.rtc-interaction-sidebar,.rtc-primary-content{grid-column:1}.rtc-interaction-sidebar{max-height:70vh}.rtc-participant-panel{max-height:none}.rtc-classroom-toolbar{flex-direction:column;align-items:stretch}.rtc-device-settings{align-self:flex-start}.rtc-device-settings[open] .rtc-device-row{width:min(680px,100vw - 36px);margin-top:8px;position:static}.rtc-controls{order:1}.rtc-device-settings{order:2}}.classroom-chat{position:relative}.rtc-chat-clear{color:#dceefa;min-height:32px;font:inherit;cursor:pointer;background:#102f49;border:1px solid #536f84;border-radius:7px;flex:none;padding:5px 8px;font-size:10px;font-weight:800}.rtc-chat-clear:disabled{opacity:.5;cursor:not-allowed}.classroom-chat-latest{z-index:3;color:#fff;font:inherit;cursor:pointer;background:#173f5d;border:1px solid #6ba4cb;border-radius:999px;padding:6px 9px;font-size:11px;font-weight:800;position:absolute;bottom:66px;right:14px;box-shadow:0 6px 16px #0000004d}@media (max-width:650px){.classroom-chat-latest{bottom:104px}}.rtc-focus-toggle{align-items:center;gap:7px;display:inline-flex}.rtc-focus-toggle[aria-pressed=true]{color:#fff;background:#173f5d;border-color:#8bc7ef}.classroom-focus-mode .classroom-header,.classroom-focus-mode .classroom-heading{display:none}@media (min-width:901px){.classroom-page.classroom-focus-mode{height:100dvh;min-height:100dvh;padding:10px 12px;overflow:hidden}.classroom-focus-mode .rtc-shell{grid-template-rows:minmax(0,1fr);grid-template-columns:minmax(0,7fr) minmax(290px,3fr);gap:0 14px}.classroom-focus-mode .rtc-status-row:not(.rtc-status-row-critical){display:none}.classroom-focus-mode .rtc-status-row-critical{z-index:30;background:#3c2d10;border:1px solid #d69a36;border-radius:10px;width:min(720px,100vw - 32px);padding:10px 14px;position:fixed;top:12px;left:50%;transform:translate(-50%);box-shadow:0 12px 32px #00000061}.classroom-focus-mode .rtc-stage{grid-area:1/1/auto/-1;height:100%;padding-bottom:0}.classroom-focus-mode .rtc-feedback:not(:empty){z-index:31;filter:drop-shadow(0 12px 24px #00000059);width:min(720px,100vw - 32px);position:fixed;top:12px;left:50%;transform:translate(-50%)}.classroom-focus-mode .rtc-classroom-toolbar{z-index:40;width:max-content;max-width:calc(100% - 24px);margin-bottom:max(12px,env(safe-area-inset-bottom));-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);background:#071827f0;border:1px solid #315872;border-radius:14px;grid-area:1/1;place-self:end center;gap:7px;padding:7px;position:relative;box-shadow:0 14px 38px #00000080}.classroom-focus-mode .rtc-controls{scrollbar-width:thin;gap:6px;overflow-x:auto}.classroom-focus-mode .rtc-controls .button,.classroom-focus-mode .rtc-device-settings>summary{white-space:nowrap;min-height:36px;padding:7px 10px;font-size:11px}.classroom-focus-mode .rtc-device-settings[open] .rtc-device-row{bottom:calc(100% + 12px);right:0}.classroom-focus-mode .whiteboard-toolbar{gap:6px;padding:7px}.classroom-focus-mode .whiteboard-toolbar .button{min-height:34px;padding:6px 9px;font-size:11px}}