:root{font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;color:#17383b;background:#f5f7f4;font-synthesis:none;font-size:15px;--green:#087f72;--mint:#dff5e8;--line:#dce4df;--muted:#617774}*{box-sizing:border-box}body{margin:0}button,input{font:inherit}button,a,input{-webkit-tap-highlight-color:transparent}button,a{touch-action:manipulation}button{cursor:pointer}button:disabled{opacity:.45;cursor:not-allowed}button:focus-visible,a:focus-visible,input:focus-visible{outline:3px solid #48bea8;outline-offset:4px}a{color:inherit;text-decoration:none}svg{width:20px;height:20px;flex-shrink:0;vertical-align:middle}header{height:88px;max-width:1536px;margin:auto;padding:0 5%;display:flex;align-items:center;justify-content:space-between}.brand{display:flex;gap:12px;align-items:center}.brand-symbol{font-size:42px;font-weight:850;letter-spacing:-5px;line-height:1;padding-right:5px}.brand-symbol span{color:var(--green)}.lab-tag{font-size:10px;font-weight:750;letter-spacing:2px;background:#e5ece6;border-radius:5px;padding:5px 7px}.top-note{font-size:12px;color:var(--muted);display:flex;align-items:center;gap:9px}.status-dot{display:inline-block;width:7px;height:7px;background:#18aa87;border-radius:50%;box-shadow:0 0 0 4px #18aa8714}.status-dot.amber{background:#c49635}.lobby{max-width:1360px;margin:38px auto 0;padding:0 5%;display:grid;grid-template-columns:1.25fr 1fr;gap:8%;align-items:center;min-height:650px}.eyebrow{font-size:10px;letter-spacing:2px;font-weight:800;color:#4b7770}.intro h1{font-size:clamp(40px,4.4vw,68px);line-height:1.08;letter-spacing:-3px;margin:22px 0}.intro h1 span{color:var(--green)}.intro>p{font-size:18px;line-height:1.65;color:var(--muted);max-width:470px}.feature-row{display:flex;flex-wrap:wrap;gap:20px;margin-top:26px}.feature-row span{font-size:12px;display:flex;align-items:center;gap:7px}.feature-row svg{width:16px;height:16px;color:var(--green)}.entry-card{background:#fff;padding:38px;border:1px solid var(--line);border-radius:26px;box-shadow:0 25px 70px #17383b09;max-width:470px;width:100%}.card-icon{display:grid;place-items:center;background:var(--mint);color:var(--green);width:52px;height:52px;border-radius:16px;margin-bottom:22px}.card-icon svg{width:26px;height:26px}.entry-card h2{font-size:25px;letter-spacing:-.7px;margin:0 0 10px}.entry-card>p{color:var(--muted);line-height:1.6;margin:0 0 25px}label{display:block;font-size:12px;font-weight:650;margin:19px 0 8px}input{width:100%;padding:13px 15px;border:1px solid var(--line);border-radius:10px;background:#fbfcfa;color:#17383b}input::placeholder{color:#8d9d98}.primary,.secondary{display:inline-flex;align-items:center;justify-content:center;gap:9px;padding:13px 18px;border-radius:10px;font-weight:650;border:1px solid transparent}.primary{background:var(--green);color:#fff}.primary:hover{background:#066e63}.secondary{background:#fff;color:#17383b;border-color:var(--line)}#entry-form .primary{width:100%;margin-top:25px}.entry-foot{display:flex;gap:10px;border-top:1px solid var(--line);padding-top:20px;margin-top:24px;color:var(--muted);font-size:11px;line-height:1.7}.entry-foot svg{color:var(--green);width:17px}.error{color:#b73737;font-size:12px;line-height:1.5}.resume{display:block;padding:12px;margin-top:8px;border-radius:9px;background:var(--mint);font-size:12px}.illustration{height:235px;position:relative;max-width:470px;margin-top:15px;overflow:hidden}.orbit{position:absolute;border:1px solid #cfe3d8;border-radius:50%;left:50%;top:50%;transform:translate(-50%,-50%);width:400px;height:160px;rotate:-12deg}.o2{width:270px;height:230px;rotate:30deg}.wave{position:absolute;top:80px;left:50%;transform:translate(-50%);height:85px;display:flex;align-items:center;gap:7px;padding:12px 22px;background:#173f40;border-radius:22px;box-shadow:0 15px 30px #173f401c}.wave span{width:5px;background:#a9e9c8;border-radius:6px;animation:wave 2.5s ease-in-out infinite alternate}.wave span:nth-child(2n){animation-delay:.7s}.wave span:nth-child(3n){animation-delay:1.2s}.mini-person{position:absolute;display:grid;place-items:center;border:5px solid #f5f7f4;width:54px;height:54px;border-radius:18px;font-size:19px;font-weight:700;z-index:1}.one{background:#d9e5ff;left:30px;top:63px;rotate:-10deg}.two{background:#ffe7bd;right:15px;top:30px;rotate:13deg}.three{background:#e3dcef;right:45px;bottom:35px;rotate:-7deg}.floating-label{position:absolute;bottom:10px;left:70px;font-size:11px;color:var(--muted);background:#f5f7f4;padding:6px 10px}footer{max-width:1536px;margin:30px auto;padding:25px 5%;display:flex;justify-content:space-between;gap:15px;font-size:10px;color:#768b84}.classroom{max-width:1536px;margin:15px auto;padding:0 4%}.room-heading{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-bottom:24px}.room-heading h1{font-size:26px;letter-spacing:-.8px;margin:8px 0 0;overflow-wrap:anywhere}.heading-actions{display:flex;align-items:center;gap:16px;flex-shrink:0}.time-pill{font-variant-numeric:tabular-nums;font-size:11px;color:var(--muted)}.heading-actions button{font-size:12px}.room-layout{display:grid;grid-template-columns:minmax(0,1fr) 340px;gap:20px;align-items:stretch}.meeting{background:#102e32;border-radius:20px;overflow:hidden;min-width:0;display:flex;flex-direction:column}.stage-top{color:#bbd0cc;display:flex;justify-content:space-between;align-items:center;padding:18px 22px;font-size:11px}.stage-top #connection{display:flex;gap:9px;align-items:center}.media-stage{height:470px;padding:0 14px;display:flex;flex-direction:column;gap:10px;min-height:260px}.video-grid{height:100%;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;min-height:0}.video-grid.count-1{grid-template-columns:1fr}.video-grid.count-3,.video-grid.count-4,.video-grid.count-5{grid-template-rows:repeat(2,minmax(0,1fr))}.video-grid.count-5{grid-template-columns:repeat(3,minmax(0,1fr))}.video-tile{min-width:0;min-height:0;border-radius:12px;background:radial-gradient(ellipse at 40% 20%,#23494b,#18383b);position:relative;overflow:hidden;display:flex;align-items:center;justify-content:center}.video-tile:nth-child(2n){background:radial-gradient(ellipse at 20% 20%,#2c414f,#1b303d)}.video-avatar{width:90px;height:90px;border-radius:50%;display:grid;place-items:center;background:#a8d7c91f;color:#cbebdf;font-size:36px;font-weight:500}.video-tile video{height:100%;width:100%;object-fit:cover}.mirror{transform:scaleX(-1)}.video-label{position:absolute;bottom:12px;left:12px;max-width:calc(100% - 24px);display:flex;align-items:center;gap:7px;background:#071e2b91;border-radius:6px;padding:6px 9px;color:#eff8f5;font-size:11px}.video-label span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.video-label svg{width:13px;height:13px}.screen-tile{height:calc(100% - 105px);min-height:0;border-radius:10px;overflow:hidden;background:#071e22}.screen-tile video{width:100%;height:100%;object-fit:contain}.sharing .video-grid{height:95px;display:flex;justify-content:center}.sharing .video-tile{width:135px}.sharing .video-avatar{width:40px;height:40px;font-size:20px}.sharing .video-label{font-size:9px;bottom:4px;left:4px;padding:3px}.floor-hint{color:#bed3cc;text-align:center;padding:17px 12px 8px;font-size:11px;min-height:43px}.toolbar{display:flex;gap:7px;padding:12px 16px 18px;align-items:center}.control{color:#dbe9e5;background:#234347;border:1px solid #45626070;border-radius:11px;min-width:64px;min-height:62px;padding:9px 12px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:6px}.control span{font-size:9px}.control:hover{background:#345458}.control.on{background:#dcf5e5;color:#0a5d54;border-color:#dcf5e5}.control.danger{background:#703b3e;color:#ffe5e5;border-color:#865154}.end-control{min-width:58px;background:transparent}.toolbar-spacer{flex:1}.side-panel{border:1px solid var(--line);border-radius:20px;background:#fff;min-width:0;overflow:hidden;display:flex;flex-direction:column}.tabs{display:flex;border-bottom:1px solid var(--line);padding:0 15px;gap:14px;flex-shrink:0}.tabs button{display:flex;align-items:center;gap:7px;font-size:12px;background:none;border:0;color:var(--muted);padding:20px 6px 17px;border-bottom:3px solid transparent}.tabs button svg{width:17px}.tabs button.active{border-bottom-color:var(--green);color:var(--green);font-weight:650}.tabs button span{font-size:10px}.panel-intro{font-size:12px;line-height:1.6;color:var(--muted);padding:8px 22px 10px}.person{display:flex;align-items:center;gap:10px;padding:13px 18px;border-bottom:1px solid #edf0ed}.avatar{display:grid;place-items:center;flex-shrink:0;border-radius:12px;background:#edf0f6;color:#566786;width:36px;height:36px;font-size:13px;font-weight:650}.avatar.teacher{background:var(--mint);color:var(--green)}.person-name{flex:1;min-width:0;display:flex;flex-direction:column;gap:4px}.person-name strong{font-size:12px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.person-name small{font-size:10px;color:var(--muted);font-weight:400}.person-name>span{font-size:10px;color:var(--muted)}.floor-button{border:1px solid #cce6dc;background:#f0faf5;color:#09766a;border-radius:8px;padding:7px;display:flex;gap:4px;align-items:center;font-size:9px}.floor-button svg{width:13px;height:13px}.floor-button.granted{background:#f4f4ef;border-color:var(--line);color:var(--muted)}.small-note{margin:25px 20px;font-size:10px;color:var(--muted);display:flex;gap:8px;align-items:center}.small-note svg{width:15px}#chat-panel{height:100%;min-height:0;display:flex;flex-direction:column}#chat-panel[hidden]{display:none}#messages{flex:1;overflow-y:auto;padding:20px;max-height:440px;min-height:200px}.chat-empty{color:#8a9d96;font-size:16px;line-height:1.8;text-align:center;padding:70px 0}.chat-empty strong{font-size:12px;color:#627d73;font-weight:500}.message{margin-bottom:15px}.message>div{display:flex;gap:10px;align-items:center}.message strong{font-size:10px;color:#52716a}.message time{font-size:9px;color:#93a39d}.message p{font-size:12px;line-height:1.65;background:#f1f5f1;border-radius:0 10px 10px;padding:10px 12px;margin:5px 0;white-space:pre-wrap;overflow-wrap:anywhere}.message.mine p{background:#e5f5eb}#chat-form{display:flex;gap:7px;margin:12px 15px 0}#chat-form input{font-size:12px;min-width:0}#chat-form button{border:0;background:var(--green);color:#fff;border-radius:9px;width:40px;flex-shrink:0}#chat-form svg{width:16px}.chat-note{font-size:9px;color:var(--muted);margin:10px 18px 18px;line-height:1.5}.room-foot{display:flex;gap:8px;align-items:center;justify-content:center;color:var(--muted);font-size:10px;margin:20px}.room-foot svg{width:14px}.stage-empty{color:#bed3cc;text-align:center;margin:auto}.stage-empty>svg{width:40px;height:40px}.stage-empty h2{font-size:20px}.stage-empty p{font-size:13px}.finish{max-width:560px;margin:100px auto;padding:25px;text-align:center}.finish h1{font-size:36px;letter-spacing:-1px}.finish p{color:var(--muted);line-height:1.7;margin-bottom:30px}.finish-icon{margin:auto;background:var(--mint);border-radius:50%;display:grid;place-items:center;width:70px;height:70px;color:var(--green)}.quiet-link{display:block;font-size:12px;margin:20px;color:var(--muted)}dialog{border:1px solid var(--line);border-radius:18px;padding:30px;max-width:460px;width:calc(100% - 30px);color:#17383b}dialog::backdrop{background:#102e32aa}dialog h2{margin-top:0}dialog p{color:var(--muted);line-height:1.6}.dialog-actions{display:flex;gap:10px;margin-top:28px}.dialog-actions button{font-size:12px}#toast{position:fixed;bottom:26px;left:50%;transform:translate(-50%,15px);max-width:calc(100% - 30px);background:#17383b;color:#fff;padding:13px 20px;border-radius:12px;box-shadow:0 10px 30px #0002;font-size:13px;opacity:0;pointer-events:none;transition:.2s;z-index:1000}#toast.show{opacity:1;transform:translate(-50%)}.hidden{display:none!important}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}@keyframes wave{to{transform:scaleY(.5);opacity:.6}}@media(min-width:1500px){.media-stage{height:550px}}@media(max-width:1050px){.room-layout{grid-template-columns:minmax(0,1fr) 300px;gap:12px}.classroom{padding:0 2%}.control{min-width:53px;padding:8px}.room-heading h1{font-size:23px}.media-stage{height:410px}.lobby{gap:5%;margin-top:20px}.entry-card{padding:28px}.intro h1{font-size:49px}}@media(max-width:800px){header{height:72px;padding:0 5%}.top-note{font-size:10px}.lobby{display:flex;flex-direction:column;gap:28px;padding:10px 6%;min-height:0;margin-top:20px}.intro{width:100%}.intro h1{font-size:43px;letter-spacing:-2px}.intro>p{font-size:15px}.illustration{display:none}.feature-row{gap:13px}.feature-row span{font-size:10px}.entry-card{max-width:none;padding:28px}.eyebrow{font-size:9px;letter-spacing:1.4px}footer{flex-direction:column;font-size:9px;margin-top:20px}.classroom{padding:0 3%;margin-top:10px}.room-layout{grid-template-columns:1fr}.media-stage{height:340px}.room-heading{gap:10px;align-items:flex-start;margin-bottom:16px}.room-heading h1{font-size:21px}.heading-actions{flex-direction:column;align-items:flex-end;gap:8px}.heading-actions button{padding:9px;font-size:11px}.time-pill{font-size:10px}.room-heading .eyebrow{font-size:8px}.side-panel{min-height:250px}.toolbar{justify-content:center;padding:10px 9px 14px;gap:6px}.toolbar-spacer{flex:0}.control{min-width:53px;padding:9px;min-height:58px}.control svg{width:19px;height:19px}.control span{font-size:8px}.floor-hint{font-size:10px}.person{padding:12px 18px}.room-foot{font-size:9px;margin:16px 4px}.video-avatar{width:58px;height:58px;font-size:26px}.stage-top{padding:15px;font-size:10px}.video-label{font-size:10px}.room-foot svg{flex-shrink:0}#messages{height:260px;max-height:320px}#chat-panel{min-height:340px}.tabs button{padding:16px 6px 13px}.panel-intro{font-size:11px}.end-control{min-width:48px}.finish{margin-top:60px}}@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation:none!important;transition:none!important}}.audio-warning{display:flex;align-items:center;justify-content:space-between;gap:14px;margin:12px 18px;padding:14px 16px;border:1px solid #dfb96b;border-radius:12px;background:#fff4db;color:#5c430c}.audio-warning[hidden],#floor-mic[hidden]{display:none}.audio-warning strong,.audio-warning span{display:block;font-size:12px;line-height:1.5}.audio-warning span{margin-top:3px}.audio-warning button,#floor-mic{flex-shrink:0;font-size:12px;padding:10px 12px}.floor-hint{display:flex;align-items:center;justify-content:center;flex-wrap:wrap;gap:12px}.toolbar{flex-wrap:wrap}@media(max-width:600px){.audio-warning{align-items:flex-start;flex-direction:column;margin:12px}.audio-warning button{width:100%}}#end-dialog{max-width:520px;color:var(--ink);box-shadow:0 24px 80px #13273833}#end-dialog h2{font-size:24px;line-height:1.2;margin:0 0 12px}#end-dialog>p{line-height:1.55}#end-dialog .exit-options{display:grid;gap:12px;margin:24px 0 20px}#end-dialog .exit-option{display:flex;align-items:flex-start;gap:14px;width:100%;padding:18px;text-align:left;border:1px solid #d6dce4;border-radius:12px;background:#fff;color:#243447;cursor:pointer;font:inherit}#end-dialog .exit-option svg{width:22px;height:22px;flex:none;margin-top:2px}#end-dialog .exit-option strong{display:block;font-size:15px;line-height:1.35}#end-dialog .exit-option small{display:block;margin-top:6px;font-size:13px;font-weight:400;line-height:1.5}#end-dialog .exit-option-end{background:#a52832;border-color:#a52832;color:#fff}#end-dialog .exit-option:hover{box-shadow:0 0 0 3px #24344718}#end-dialog .exit-option:focus-visible{outline:3px solid #527cb9;outline-offset:3px}#end-dialog button:disabled{opacity:.65;cursor:wait}#end-dialog .exit-cancel{width:100%;justify-content:center}#end-dialog #exit-error{color:#a52832}@media(max-width:480px){#end-dialog{padding:22px}#end-dialog .exit-option{padding:15px;gap:10px}}.class-closure{margin:32px auto 0;padding:26px;text-align:left;background:#fff;border:1px solid #dce4ec;border-radius:18px;width:min(620px,100%);box-sizing:border-box}.class-closure h2{font-size:23px;margin:0 0 12px}.class-closure p{font-size:15px;line-height:1.5}.class-closure fieldset{border:0;padding:0;margin:22px 0}.class-closure legend{font-weight:600;margin-bottom:12px}.survey-scale{display:grid;grid-template-columns:repeat(4,1fr);gap:8px}.survey-scale label{cursor:pointer}.survey-scale input{position:absolute;opacity:0;width:1px}.survey-scale span{display:block;border:1px solid #cdd8e3;border-radius:10px;padding:12px 6px;text-align:center;font-size:13px}.survey-scale input:checked+span{background:var(--green);color:#fff;border-color:var(--green)}.survey-scale input:focus-visible+span{outline:3px solid #72a2d7;outline-offset:2px}.class-closure textarea{box-sizing:border-box;width:100%;margin-top:8px;padding:12px;border:1px solid #cdd8e3;border-radius:10px;font:inherit}.closure-links{display:flex;gap:18px;flex-wrap:wrap}.capture-notice{max-width:600px;font-size:14px!important;background:#eef3f8;padding:14px;border-radius:10px}.class-closure .primary{width:100%;justify-content:center}@media(max-width:420px){.survey-scale{grid-template-columns:repeat(2,1fr)}.class-closure{padding:18px}}[hidden]{display:none!important}.lesson-area{background:#fff;border-bottom:1px solid var(--line);min-width:0}.lesson-caption{display:flex;justify-content:space-between;align-items:center;gap:12px;padding:12px 18px;font-size:12px;font-weight:650;color:var(--green);background:#f5f8fb}.lesson-link{border:0;background:none;color:var(--green);font:inherit;cursor:pointer}.lesson-toolbar{padding:12px;display:flex;gap:8px;align-items:center;flex-wrap:wrap;border-top:1px solid var(--line);background:#fff}.lesson-toolbar button{padding:9px 12px;font-size:12px;min-height:36px}.lesson-toolbar a{font-size:11px;margin-left:auto;color:var(--muted)}#lesson-content{background:#f0f4f8;min-height:390px}#lesson-player{width:100%;height:min(60vh,650px);min-height:380px;border:0;background:#fff;display:block}#lesson-activity{min-height:390px;padding:28px;max-width:800px;margin:auto;background:#fff}#lesson-activity h2{font-size:25px;line-height:1.35;margin:16px 0 22px}#lesson-activity .pg-btn{margin-top:18px}#lesson-activity .pg-choice{width:100%;text-align:left;padding:15px;margin:7px 0;border:1px solid #d4dfe8;border-radius:10px;background:#fff;font:inherit;cursor:pointer}#lesson-activity [aria-pressed=true]{background:#e7f0fa;border-color:var(--green)}.lesson-answered{padding:24px;border-radius:12px;background:#edf6f0;color:#276948}.lesson-navigation{padding:8px 16px;display:flex;align-items:center;gap:12px;font-size:12px;background:#fff}.lesson-navigation button{border:1px solid var(--line);background:#f5f8fb;border-radius:8px;padding:7px 14px;color:var(--green);cursor:pointer}#lesson-index{margin-left:auto}.has-lesson #media-stage{min-height:0!important;padding:10px}.has-lesson .video-grid{display:flex!important;gap:8px;overflow-x:auto}.has-lesson .video-tile{width:145px;min-width:145px;height:100px;min-height:100px;aspect-ratio:unset}.has-lesson .video-avatar{font-size:26px;width:42px;height:42px}.has-lesson .video-label{font-size:10px}.has-lesson .video-label svg{width:12px;height:12px}#lesson-dialog{width:min(1080px,94vw);max-width:min(1080px,94vw);max-height:92dvh;border:1px solid #d4dfe8;border-radius:17px;padding:24px;color:#19364e;box-shadow:0 20px 90px #0a243c40}#lesson-dialog::backdrop{background:#09274055}.lesson-dialog-head{display:flex;align-items:start;justify-content:space-between;margin-bottom:20px}.lesson-dialog-head h2{font-size:24px;margin:6px 0}.lesson-dialog-head small{color:var(--green);font-size:11px;text-transform:uppercase;letter-spacing:1px}#lesson-close{background:transparent;border:0;font-size:28px;padding:2px 8px;cursor:pointer}.lesson-muted{font-size:13px;color:var(--muted);line-height:1.6;margin:12px 0}.lesson-resource-list{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin:20px 0}.lesson-resource-list>button{display:flex;align-items:center;gap:13px;padding:17px;text-align:left;background:#fff;border:1px solid #dce5ed;border-radius:12px;cursor:pointer;color:inherit}.lesson-resource-icon{font-size:26px;width:44px;height:48px;background:#e9f0f7;display:grid;place-items:center;border-radius:9px;color:var(--green);flex-shrink:0}.lesson-resource-list b{font-size:13px;display:block}.lesson-resource-list small{font-size:11px;display:block;margin-top:5px;color:var(--muted)}.lesson-back{display:block;margin-top:20px;font-size:13px;color:var(--green)}#lesson-preview{width:100%;height:60vh;min-height:320px;border:1px solid #dce5ed;border-radius:10px}.lesson-slide-list{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}.lesson-slide-list button{border:1px solid #d8e4ee;border-radius:10px;background:linear-gradient(145deg,var(--green),#092d4e);color:#fff;min-height:120px;padding:17px;cursor:pointer;display:flex;flex-direction:column;align-items:start;justify-content:space-between;text-align:left;gap:15px}.lesson-slide-list small{color:#ffc34d}.lesson-slide-list b{font-size:13px}.pg#pg-dialog{max-height:94dvh}#lesson-dialog .primary,#lesson-dialog .secondary{display:inline-flex;margin:8px 8px 0 0}.lesson-toolbar+.toolbar{padding-top:8px}.lesson-toolbar+.toolbar #share span{white-space:nowrap}@media(max-width:800px){#lesson-player{height:45vh;min-height:260px}#lesson-content,#lesson-activity{min-height:260px}#lesson-activity{padding:18px}#lesson-activity h2{font-size:21px}.lesson-resource-list{grid-template-columns:1fr}.lesson-slide-list{grid-template-columns:1fr 1fr}.lesson-toolbar{gap:6px}.lesson-toolbar button{font-size:11px;padding:8px}.lesson-toolbar a{margin-left:0}#lesson-dialog{padding:17px}.lesson-caption{font-size:11px;padding:10px;align-items:start}.lesson-caption span{flex:1}.lesson-link{font-size:10px}.has-lesson .video-tile{width:110px;min-width:110px;height:85px;min-height:85px}}.has-lesson #media-stage{height:auto!important;min-height:0!important}.has-lesson .video-grid{height:100px;flex-shrink:0}.has-lesson .floor-hint{min-height:28px;padding:6px 12px}.has-lesson #lesson-player{height:auto;aspect-ratio:16/9;min-height:0}.has-lesson #lesson-content{min-height:0}#pg-dialog header{height:auto;max-width:none;margin:0}#pg-dialog .pg-dialog-head{padding:20px 24px}.classroom:has(.lesson-area) .side-panel{max-height:calc(100dvh - 180px);overflow:auto;position:sticky;top:15px}.classroom:has(.lesson-area) .meeting{background:color-mix(in srgb,var(--green) 40%,#101f30)}@media(max-width:800px){.has-lesson #lesson-player{height:auto;aspect-ratio:16/9;min-height:0}.classroom:has(.lesson-area) .side-panel{position:static;max-height:450px}.has-lesson .video-grid{height:85px}}#lesson-caption{flex:1;min-width:0}#lesson-expand{flex-shrink:0;border:1px solid var(--line);border-radius:7px;padding:6px 9px;background:#fff;white-space:nowrap}body.lesson-expanded-open{overflow:hidden}.meeting.lesson-expanded{position:fixed;top:8px;right:8px;bottom:8px;left:8px;z-index:100;max-width:none;border-radius:12px;box-shadow:0 0 0 12px #102e32;display:flex;flex-direction:column}.meeting.lesson-expanded>.stage-top,.meeting.lesson-expanded>#media-stage,.meeting.lesson-expanded>.floor-hint{display:none!important}.meeting.lesson-expanded #lesson-area{display:flex;flex-direction:column;flex:1;min-height:0;overflow:hidden}.meeting.lesson-expanded #lesson-content{display:flex;flex-direction:column;flex:1;min-height:0;overflow:auto}.meeting.lesson-expanded #lesson-player{height:100%;width:100%;flex:1;min-height:0;aspect-ratio:auto}.meeting.lesson-expanded #lesson-activity{width:100%;min-height:0}.meeting.lesson-expanded .lesson-caption,.meeting.lesson-expanded .lesson-navigation,.meeting.lesson-expanded>.lesson-toolbar,.meeting.lesson-expanded>.toolbar{flex-shrink:0}.meeting.lesson-expanded>.toolbar{padding:8px 12px;gap:8px}.meeting.lesson-expanded>.toolbar .control{min-height:40px;padding:7px 10px;flex-direction:row;gap:7px}.meeting.lesson-expanded>.toolbar .control span{font-size:11px}.meeting.lesson-expanded>.lesson-toolbar{padding:8px 12px}.meeting.lesson-expanded .lesson-caption{padding:8px 12px}@media(max-width:800px){.meeting.lesson-expanded{top:0;right:0;bottom:0;left:0;border-radius:0}.meeting.lesson-expanded>.toolbar .control span{display:none}.meeting.lesson-expanded>.toolbar .control{min-width:40px}.lesson-caption{flex-wrap:wrap}#lesson-return{margin-left:auto}.meeting.lesson-expanded>.lesson-toolbar{gap:4px}.meeting.lesson-expanded>.lesson-toolbar a{display:none}}#lesson-annotate{display:inline-flex;align-items:center;gap:6px;border:1px solid var(--line);border-radius:8px;background:#fff;padding:6px 10px;white-space:nowrap}#lesson-annotate svg,.ink-toolbar svg{width:18px;height:18px;flex-shrink:0}#lesson-annotate.active{color:#fff;background:var(--green);border-color:var(--green)}.ink-toolbar{display:flex;align-items:center;gap:12px;flex-wrap:wrap;padding:9px 14px;background:#fff;border-block:1px solid #e1e8ef;flex-shrink:0}.ink-tools,.ink-colors,.ink-actions{display:flex;align-items:center;gap:4px}.ink-toolbar button{display:inline-flex;align-items:center;justify-content:center;gap:6px;min-height:36px;padding:7px 10px;border:1px solid transparent;border-radius:8px;background:transparent;color:#28475f;font:600 12px system-ui;cursor:pointer}.ink-toolbar button:hover{background:#edf3f9}.ink-toolbar button:focus-visible,#lesson-annotate:focus-visible{outline:3px solid #64b5f6;outline-offset:2px}.ink-tools button[aria-pressed=true]{background:#e7f1fc;color:#00599e;border-color:#bdd7ee}.ink-colors{border-inline:1px solid #e1e8ef;padding:0 10px}.ink-colors button{width:30px;min-height:30px;padding:0;border:3px solid white;border-radius:50%;background:var(--ink);box-shadow:0 0 0 1px #cfdbe5}.ink-colors button:hover{background:var(--ink)}.ink-colors button[aria-pressed=true]{box-shadow:0 0 0 2px #1c4567}.ink-toolbar button:disabled{opacity:.4;cursor:default}#ink-done{background:#123e61;color:#fff;margin-left:4px}#ink-status{color:#657b8d;font:11px system-ui;margin-left:auto}#ink-retry{color:#ab331e;border-color:#e6b6ab;background:#fff2ed}@media(max-width:800px){.ink-toolbar{gap:8px;padding:8px}.ink-toolbar button{padding:7px}.ink-colors{padding:0 6px}.ink-actions button span{display:none}#ink-status{width:100%;margin:0;font-size:10px}.ink-tools button{font-size:11px;gap:4px}.ink-tools{flex-wrap:wrap}}#media-stage.camera-stage{height:auto;min-height:0!important;padding:12px 16px 16px;gap:12px;color:#f0f5fc}.camera-stage [hidden]{display:none!important}.camera-heading,.camera-options,.camera-footer,.camera-pages{display:flex;align-items:center;gap:10px}.camera-heading{justify-content:space-between;flex-wrap:wrap}.camera-heading strong{font-size:14px;font-weight:650}.camera-summary{display:block;font-size:11px;color:#b9c9da;margin-top:4px}.camera-options button,.camera-pages button{border:1px solid #ffffff30;color:#eaf3ff;background:#ffffff0d;border-radius:9px;padding:8px 12px;min-height:34px;cursor:pointer;font:inherit;font-size:12px}.camera-options button:hover,.camera-pages button:hover{background:#ffffff20}.camera-options button[aria-pressed=true]{background:#edf5ff;color:#123b61;border-color:#edf5ff}.camera-pages button:disabled{opacity:.35;cursor:default}.camera-stage button:focus-visible{outline:3px solid #ffbe45;outline-offset:3px}.camera-body{position:relative;min-width:0}#media-stage .camera-grid{display:grid!important;grid-template-columns:repeat(var(--camera-columns,2),minmax(0,1fr));grid-template-rows:none;height:auto!important;gap:8px;overflow:visible}#media-stage .camera-grid .video-tile{width:auto;min-width:0;height:auto;min-height:0;aspect-ratio:16/10;border:2px solid transparent;border-radius:12px;background:linear-gradient(135deg,#1f3d5b,#14293f)}#media-stage .camera-grid .video-tile.camera-speaking{border-color:#6ad9c0}.camera-stage .video-tile video{object-fit:contain}.camera-stage .video-avatar[hidden]{display:none}.camera-stage .video-label{display:flex;flex-direction:column;align-items:flex-start;gap:2px;inset:auto 0 0;padding:22px 10px 8px;background:linear-gradient(transparent,#09182ee6);line-height:1.25}.camera-stage .video-label>span{max-width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-size:12px;font-weight:600}.camera-stage .video-label small{font-size:9px;font-weight:400;color:#c4d2e3}.camera-badges{position:absolute;left:8px;top:8px;background:#ffbf47;color:#17334d;border-radius:6px;padding:4px 6px;font-size:10px;font-weight:650;max-width:calc(100% - 40px)}.camera-badges:empty{display:none}.camera-pin{position:absolute;right:6px;top:6px;border:1px solid #ffffff40;background:#102a42d9;color:#fff;border-radius:7px;width:28px;height:28px;cursor:pointer;font-size:18px}.camera-pin svg{width:15px;height:15px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;display:block;margin:auto}.camera-footer{justify-content:space-between;flex-wrap:wrap;color:#bcd;font-size:10px;min-height:20px}.camera-page{font-variant-numeric:tabular-nums;min-width:72px;text-align:center}.camera-pages button{font-size:20px;line-height:1;padding:2px 12px}.camera-empty{padding:45px 24px;text-align:center;border:1px dashed #ffffff30;border-radius:14px;font-size:14px;color:#c4d2e3;line-height:1.6}.camera-self{width:150px;margin:10px 0 0 auto}.camera-self .video-tile{height:100px;aspect-ratio:3/2;border:1px solid #ffffff30}.camera-self .video-avatar{width:35px;height:35px;font-size:20px}.camera-self .video-label{font-size:10px}.camera-screen{height:clamp(260px,52vh,650px);background:#071626;border-radius:12px;overflow:hidden}.camera-screen video{width:100%;height:100%;object-fit:contain}#media-stage.camera-focus:not(.camera-compact) .camera-grid{grid-template-columns:minmax(0,1fr) 160px;grid-template-rows:repeat(3,minmax(0,1fr));height:clamp(300px,48vh,540px)!important}#media-stage.camera-focus:not(.camera-compact) .camera-grid .video-tile{aspect-ratio:auto}#media-stage.camera-focus:not(.camera-compact) .camera-primary{grid-column:1;grid-row:1 / 4}#media-stage.camera-focus:not(.camera-compact) .camera-grid[data-count="1"]{grid-template-columns:1fr}#media-stage.camera-focus:not(.camera-compact) .camera-grid[data-count="0"]{display:none!important}#media-stage.camera-compact .camera-grid .video-tile{aspect-ratio:16/10;max-height:135px}#media-stage.camera-compact .video-avatar{width:34px;height:34px;font-size:20px}#media-stage.camera-compact .video-label>span{font-size:10px}#media-stage.camera-compact .video-label small{display:none}.meeting:not(.has-lesson) #media-stage.camera-gallery .camera-grid{height:clamp(280px,calc(100dvh - 440px),640px)!important;grid-template-rows:repeat(var(--camera-rows,1),minmax(0,1fr))}.meeting:not(.has-lesson) #media-stage.camera-gallery .video-tile{aspect-ratio:auto}.meeting:not(.has-lesson) #media-stage.camera-gallery .video-avatar{width:36px;height:36px;font-size:22px}.meeting.lesson-expanded #media-stage.camera-stage{display:none}@media(min-width:1500px){#media-stage.camera-gallery .camera-grid .video-tile{max-height:300px}}@media(max-width:800px){#media-stage.camera-stage{padding:10px}.camera-heading strong{font-size:12px}.camera-options{gap:5px}.camera-options button{font-size:11px;padding:6px 9px}.camera-summary{font-size:10px}#media-stage.camera-focus:not(.camera-compact) .camera-grid{grid-template-columns:minmax(0,1fr) 110px;height:300px!important}.camera-stage .video-avatar{width:40px;height:40px;font-size:24px}.camera-stage .video-label>span{font-size:10px}.camera-stage .video-label small{display:none}.camera-badges{font-size:9px;padding:3px 4px}.camera-pin{width:24px;height:24px;font-size:16px}.camera-hint{font-size:9px}}@media(prefers-reduced-motion:no-preference){.camera-stage .video-tile{transition:border-color .15s}}
