:root{
 --bg:#0E1730;--panel:#16213F;--raise:#22305A;--line:#2E3B66;--text:#E9EDF7;--muted:#9AA5C4;
 --danger:#E5534B;--ok:#4CC38A;--gold:#F3C969;--accent:#4D8BFF;--accent-ink:#FFFFFF;--paper:#FBFBF8;
 color-scheme:dark;
}
:root[data-brand="academie"]{--accent:#9DB8DD;--accent-ink:#0E1730}
*{box-sizing:border-box}
html,body{height:100%;margin:0}
body{background:var(--bg);color:var(--text);font:16px/1.5 Figtree,system-ui,-apple-system,"Segoe UI",sans-serif;-webkit-font-smoothing:antialiased;overflow-x:hidden}
h1,h2,h3,.code,.brand,.mt{font-family:"Bricolage Grotesque",Figtree,system-ui,sans-serif}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px}
.ic{width:22px;height:22px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;flex:none}
.ic.fill{fill:currentColor;stroke:none}
[hidden]{display:none!important}
.host-only{display:none!important}
body.is-host .host-only{display:revert!important}
body.is-host .share-row.host-only{display:flex!important}
body.is-host .host-opts.host-only{display:grid!important}
body.is-host .pop.menu button.host-only{display:flex!important}
.small{font-size:.86rem;color:var(--muted)}

.view{display:none;flex-direction:column;min-height:100dvh;padding-top:env(safe-area-inset-top,0px)}
.view.on{display:flex}
.sky{background:
 radial-gradient(1.5px 1.5px at 12% 18%,#F3C96988 50%,transparent 51%),
 radial-gradient(1px 1px at 78% 12%,#E9EDF766 50%,transparent 51%),
 radial-gradient(1.5px 1.5px at 64% 72%,#E9EDF755 50%,transparent 51%),
 radial-gradient(1px 1px at 30% 84%,#F3C96966 50%,transparent 51%),
 radial-gradient(1px 1px at 90% 58%,#E9EDF744 50%,transparent 51%),
 radial-gradient(900px 500px at 85% -10%,#1C2B57 0%,transparent 70%),var(--bg)}

.bar{display:flex;align-items:center;justify-content:space-between;padding:18px clamp(16px,4vw,40px)}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--text);text-decoration:none;font-weight:700;font-size:1.15rem}
.mark{width:30px;height:30px;border-radius:9px;background:var(--panel);display:grid;place-items:center;flex:none}
.mark .ic{width:17px;height:17px;fill:var(--gold);stroke:none}
.chip{display:inline-flex;align-items:center;gap:8px;height:38px;padding:0 14px;border-radius:10px;border:1px solid var(--line);background:transparent;font-size:.92rem;font-weight:500;white-space:nowrap}
.chip:hover{background:var(--panel)}
.chip .ic{width:16px;height:16px}

.btn{min-height:52px;padding:0 22px;border-radius:12px;border:1px solid transparent;font-weight:600;display:inline-flex;align-items:center;justify-content:center;gap:10px;text-decoration:none;white-space:nowrap}
.btn .ic{width:18px;height:18px}
.primary{background:var(--accent);color:var(--accent-ink)}
.primary:hover{filter:brightness(1.07)}
.primary:disabled{opacity:.6;cursor:wait}
.ghost{background:transparent;border-color:var(--line);color:var(--text)}
.ghost:hover{background:var(--panel)}
.wide{width:100%}

.home,.leftv{flex:1;width:min(780px,100% - 32px);margin:0 auto;display:flex;flex-direction:column;justify-content:center;padding:24px 0 48px}
.home h1,.leftv h1{font-size:clamp(2.4rem,6.4vw,4.6rem);line-height:1.02;letter-spacing:-.02em;margin:0 0 20px;font-weight:700}
.lede{color:var(--muted);font-size:1.12rem;max-width:36em;margin:0 0 34px}
.home-actions{display:flex;flex-wrap:wrap;gap:12px;align-items:center}
.codeform{display:flex;gap:8px;flex:1;min-width:260px}
input:not([type=checkbox]),select,textarea{border-radius:12px;border:1px solid var(--line);background:var(--panel);padding:0 16px;outline:none;min-width:0}
input:not([type=checkbox]),select{height:50px}
input:focus,select:focus,textarea:focus{border-color:var(--accent)}
.codeform input{flex:1}
.points{list-style:none;padding:0;margin:44px 0 0;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px 28px;max-width:44em}
.points li{display:flex;gap:12px;align-items:flex-start;color:var(--muted);font-size:.98rem}
.points .ic{color:var(--gold);margin-top:2px}
.foot{padding:18px clamp(16px,4vw,40px);font-size:.88rem}
.foot a{color:var(--muted);text-decoration:none}
.foot a:hover{color:var(--text)}

.lobby{flex:1;width:min(1140px,100% - 32px);margin:0 auto;display:grid;grid-template-columns:minmax(0,1.5fr) minmax(290px,1fr);gap:clamp(24px,4vw,56px);align-items:center;padding:12px 0 40px}
.preview-wrap{position:relative;aspect-ratio:16/9;border-radius:22px;overflow:hidden;background:var(--panel)}
.preview-wrap video{width:100%;height:100%;object-fit:cover;transform:scaleX(-1);display:block}
.preview-wrap.off video{visibility:hidden}
.preview-ctrls{position:absolute;left:0;right:0;bottom:16px;display:flex;justify-content:center;gap:12px}
.preview-ctrls .round{background:rgba(14,23,48,.72);backdrop-filter:blur(6px)}
.preview-ctrls .round.off{background:var(--danger)}
.preview-ctrls .round.active{background:var(--accent);color:var(--accent-ink)}
.meter{position:absolute;left:16px;top:16px;width:6px;height:56px;border-radius:3px;background:rgba(14,23,48,.6);overflow:hidden;display:flex;align-items:flex-end}
.meter span{display:block;width:100%;height:0;background:var(--ok);transition:height .08s}
.role-badge{display:inline-flex;align-items:center;gap:8px;margin:0 0 10px;padding:4px 12px;border-radius:999px;background:var(--panel);color:var(--gold);font-size:.88rem;font-weight:600}
.role-badge .ic{width:15px;height:15px}
.lobby-side h1{font-size:clamp(1.8rem,3.4vw,2.6rem);line-height:1.08;margin:0 0 6px;font-weight:700;letter-spacing:-.01em}
.code{font-weight:500;color:var(--muted);font-size:1.15rem;letter-spacing:.04em;margin:0 0 22px}
.note{color:var(--gold);font-size:.92rem;margin:-8px 0 18px}
.note:empty{display:none}
.field{display:block;margin:0 0 14px}
.field>span{display:block;font-size:.9rem;color:var(--muted);margin:0 0 6px}
.field input,.field select{width:100%}
.share-row{gap:10px;margin-top:10px}
.share-row .btn{flex:1;min-height:46px;padding:0 12px;font-size:.94rem}
.wait{display:flex;flex-direction:column;align-items:flex-start;gap:12px;margin-top:16px;padding:16px;border-radius:14px;background:var(--panel)}
.wait p{margin:0}
.spinner{width:22px;height:22px;border-radius:50%;border:3px solid var(--line);border-top-color:var(--accent);animation:spin 1s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}

.round{width:50px;height:50px;border-radius:50%;border:0;background:var(--raise);color:var(--text);display:grid;place-items:center;position:relative;transition:background .15s;flex:none}
.round:hover{filter:brightness(1.15)}
.round.off{background:var(--danger);color:#fff}
.round.active{background:var(--accent);color:var(--accent-ink)}
.round.leave{background:var(--danger);color:#fff;width:66px;border-radius:25px}
.round.flat{background:transparent}
.round.flat.active{background:var(--raise);color:var(--text)}
.dot{position:absolute;top:9px;right:9px;width:10px;height:10px;border-radius:50%;background:var(--gold);box-shadow:0 0 0 2px var(--bg)}
.badge{position:absolute;top:2px;right:0;min-width:20px;height:20px;padding:0 5px;border-radius:10px;background:var(--danger);color:#fff;font-size:.75rem;font-weight:700;display:grid;place-items:center}

#v-call.on{flex-direction:row;height:100dvh;min-height:0;overflow:hidden}
.call-main{flex:1;min-width:0;display:flex;flex-direction:column;position:relative}
.topbar{display:flex;align-items:center;gap:14px;padding:12px 18px;min-height:62px}
.tb-meta{display:flex;flex-direction:column;line-height:1.2;min-width:0}
.tb-meta .mt{font-weight:700;font-size:1.02rem;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.tb-meta .mt:empty{display:none}
.tb-meta .code{margin:0;font-size:.9rem}
.secure{display:inline-flex;align-items:center;gap:6px;height:32px;padding:0 12px;border-radius:999px;border:0;background:rgba(76,195,138,.14);color:var(--ok);font-size:.85rem;font-weight:600}
.secure .ic{width:15px;height:15px}
.pill{display:inline-flex;align-items:center;gap:7px;height:32px;padding:0 12px;border-radius:999px;font-size:.85rem;font-weight:600}
.pill .ic{width:16px;height:16px}
.pill.rec{background:rgba(229,83,75,.16);color:#FF8A82}
.pill.rec .rd{width:9px;height:9px;border-radius:50%;background:var(--danger);animation:blink 1.4s infinite}
.pill.tx{background:var(--panel);color:var(--muted)}
@keyframes blink{50%{opacity:.25}}
.clock{margin-left:auto;color:var(--muted);font-variant-numeric:tabular-nums;font-size:.92rem}
.banner{margin:0 18px;padding:8px 8px 8px 16px;border-radius:12px;background:var(--panel);color:var(--muted);font-size:.94rem;display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap}

.stage{flex:1;min-height:0;display:flex;flex-direction:column;gap:10px;padding:10px 12px}
.spot{display:none}
.stage.spotlight .spot{flex:1;min-height:0;display:grid;place-items:center}
.grid{flex:1;min-height:0;display:grid;gap:12px;place-content:center}
.stage.spotlight .grid{flex:0 0 auto;height:112px;display:flex;gap:10px;overflow-x:auto;justify-content:center}
.stage.spotlight .grid .tile{height:100%;width:auto;flex:none}
.stage.spotlight .grid .tile .toolbar{display:none}

.tile{position:relative;aspect-ratio:16/9;background:var(--panel);border-radius:18px;overflow:hidden;box-shadow:0 0 0 0 transparent;transition:box-shadow .15s}
.tile.speaking{box-shadow:0 0 0 3px var(--accent)}
.tile video{width:100%;height:100%;object-fit:cover;display:block;background:#0A1124}
.tile.self:not(.screen) video{transform:scaleX(-1)}
.tile.screen video{object-fit:contain}
.tile.camoff video{visibility:hidden}
.tile:not(.board){cursor:pointer}
.avatar{position:absolute;inset:0;margin:auto;width:min(28%,110px);aspect-ratio:1;border-radius:50%;background:var(--gold);color:#2A1F05;display:none;place-items:center;font:700 clamp(18px,3vw,40px)/1 "Bricolage Grotesque",sans-serif}
.tile.camoff .avatar,#previewOff{display:grid}
#previewOff[hidden]{display:none!important}
.tag{position:absolute;left:10px;bottom:10px;max-width:calc(100% - 20px);display:flex;gap:6px;align-items:center;padding:4px 10px;border-radius:8px;background:rgba(14,23,48,.78);font-size:.86rem;font-weight:500}
.tag .nm{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.tag .ic{width:14px;height:14px}
.tag .mi{display:none;color:var(--danger)}
.tag .hd{display:none;color:var(--gold)}
.tile.muted .tag .mi,.tile.hand .tag .hd{display:inline-flex}
.tile.hand{box-shadow:0 0 0 3px var(--gold)}
.pinmark{position:absolute;top:10px;right:10px;width:30px;height:30px;border-radius:8px;background:rgba(14,23,48,.78);display:none;place-items:center}
.pinmark .ic{width:16px;height:16px}
.tile.pinned .pinmark{display:grid}
.floats{position:absolute;inset:0;pointer-events:none;overflow:hidden}
.float{position:absolute;bottom:12%;font-size:clamp(28px,4vw,44px);animation:floatUp 2.6s ease-out forwards}
@keyframes floatUp{0%{transform:translateY(0) scale(.6);opacity:0}15%{opacity:1;transform:translateY(-10%) scale(1)}100%{transform:translateY(-260%) scale(1.05);opacity:0}}

/* whiteboard */
.tile.board{background:var(--paper)}
.surface{position:absolute;inset:0;background:var(--paper);touch-action:none}
.surface canvas{position:absolute;inset:0;width:100%;height:100%;touch-action:none;cursor:crosshair}
.surface .pgmark{position:absolute;right:12px;bottom:10px;color:#7A859F;font-size:.8rem;pointer-events:none}
.toolbar{display:flex;flex-wrap:wrap;gap:6px;align-items:center}
.tile .toolbar{position:absolute;left:10px;top:10px;right:10px;z-index:2;pointer-events:none}
.tile .toolbar .tb-group{pointer-events:auto}
.tb-group{display:flex;gap:2px;align-items:center;padding:4px;border-radius:12px;background:rgba(14,23,48,.9);color:var(--text)}
.tb-group button{width:36px;height:36px;border:0;border-radius:9px;background:transparent;display:grid;place-items:center}
.tb-group button .ic{width:18px;height:18px}
.tb-group button:hover{background:var(--raise)}
.tb-group button.on{background:var(--accent);color:var(--accent-ink)}
.tb-group button:disabled{opacity:.35;cursor:default}
.sw span{width:18px;height:18px;border-radius:50%;background:var(--c);box-shadow:inset 0 0 0 2px rgba(255,255,255,.35)}
.sw.on{background:var(--raise)!important}
.sw.on span{box-shadow:0 0 0 2px var(--text)}
.sz span{width:var(--s);height:var(--s);border-radius:50%;background:currentColor}
.sz.on{background:var(--raise)!important;color:var(--accent)}
.pg{min-width:52px;text-align:center;font-size:.85rem;color:var(--muted)}

.captions{position:absolute;left:50%;bottom:92px;transform:translateX(-50%);width:min(860px,calc(100% - 32px));display:flex;flex-direction:column;gap:4px;pointer-events:none;z-index:5}
.captions p{margin:0;padding:6px 12px;border-radius:8px;background:rgba(6,10,22,.82);font-size:1.05rem;line-height:1.4}
.captions b{color:var(--gold);font-weight:600;margin-right:8px}
.controls{display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:12px;padding:10px 16px calc(14px + env(safe-area-inset-bottom,0px))}
.ctl-mid{display:flex;gap:10px;justify-content:center}
.ctl-side{display:flex;gap:6px;align-items:center}
.ctl-side.right{justify-content:flex-end}
.count{color:var(--muted);font-size:.92rem}
.pop{position:absolute;bottom:84px;left:50%;transform:translateX(-50%);background:var(--panel);border:1px solid var(--line);border-radius:16px;padding:8px;z-index:30;box-shadow:0 18px 40px rgba(0,0,0,.35)}
.pop.react{display:flex;gap:4px}
.pop.react button{width:48px;height:48px;border:0;border-radius:12px;background:transparent;font-size:26px}
.pop.react button:hover{background:var(--raise)}
.pop.menu{display:flex;flex-direction:column;min-width:270px;left:auto;right:16px;transform:none}
.pop.menu button{display:flex;align-items:center;gap:12px;height:46px;padding:0 14px;border:0;border-radius:10px;background:transparent;text-align:left;font-size:.96rem}
.pop.menu button:hover{background:var(--raise)}
.pop.menu button.on .ic{color:var(--accent)}

.panel{width:0;overflow:hidden;background:var(--panel);border-left:1px solid var(--line);display:flex;flex-direction:column;transition:width .22s}
.panel>*{min-width:360px}
#v-call.panel-open .panel{width:360px}
.panel-head{display:flex;align-items:center;justify-content:space-between;padding:16px 16px 8px}
.panel-head h2{margin:0;font-size:1.2rem}
.x{width:38px;height:38px;border-radius:10px;border:0;background:transparent;display:grid;place-items:center}
.x:hover{background:var(--raise)}
.panel-body{display:none;flex:1;min-height:0;flex-direction:column;overflow-y:auto;padding:0 16px 16px}
.panel-body.on{display:flex}
.panel-body[data-panel="chat"]{padding:0}
.panel-body h3{font-size:.95rem;margin:18px 0 8px;color:var(--muted);font-weight:600}
.msgs{flex:1;overflow-y:auto;padding:8px 16px;display:flex;flex-direction:column;gap:12px}
.msg .who{font-size:.82rem;color:var(--muted);display:flex;gap:8px}
.msg .who b{color:var(--text);font-weight:600}
.msg .txt{white-space:pre-wrap;overflow-wrap:anywhere}
.sys{font-size:.84rem;color:var(--muted);text-align:center}
.chat-form{display:flex;gap:8px;padding:12px 16px calc(16px + env(safe-area-inset-bottom,0px));border-top:1px solid var(--line)}
.chat-form input{flex:1;height:46px;background:var(--bg)}
.chat-form .btn{min-height:46px;padding:0 16px}
.host-opts{gap:10px;padding:12px;border-radius:12px;background:var(--bg);margin-top:4px}
.switch{display:flex;align-items:center;gap:12px;font-size:.94rem;cursor:pointer;margin:0 0 4px}
.switch input{width:20px;height:20px;accent-color:var(--accent);flex:none}
.sec-head{display:flex;align-items:center;justify-content:space-between}
.sec-head h3{margin:18px 0 8px}
.plist{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:6px}
.plist li{display:flex;flex-direction:column;gap:6px;padding:10px;border-radius:12px;background:var(--bg)}
.prow{display:flex;align-items:center;gap:10px}
.pav{width:34px;height:34px;border-radius:50%;background:var(--gold);color:#2A1F05;display:grid;place-items:center;font-weight:700;font-size:.85rem;flex:none}
.pname{flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.pname em{font-style:normal;color:var(--muted);font-size:.84rem;margin-left:6px}
.picons{display:flex;gap:6px;color:var(--muted)}
.picons .ic{width:16px;height:16px}
.picons .warn{color:var(--danger)}
.picons .hand{color:var(--gold)}
.pacts{display:flex;gap:6px;flex-wrap:wrap}
.pacts button{height:32px;padding:0 10px;border-radius:8px;border:1px solid var(--line);background:transparent;font-size:.84rem}
.pacts button.yes{background:var(--accent);color:var(--accent-ink);border-color:var(--accent)}
.safety{font-size:.82rem;color:var(--muted)}
.safety b{font-size:1.05rem;letter-spacing:.12em;color:var(--text);font-weight:400}
.info-title{font:700 1.3rem/1.2 "Bricolage Grotesque",sans-serif;margin:4px 0}
.info-title:empty{display:none}
.stack{display:flex;flex-direction:column;gap:8px}
.stack .btn{min-height:46px}
.seclist{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:12px}
.seclist li{display:flex;gap:10px;font-size:.92rem;color:var(--muted)}
.seclist li .ic{color:var(--ok);width:18px;height:18px;margin-top:2px}
.seclist li.warn .ic{color:var(--gold)}

/* pad view */
#v-pad.on{height:100dvh;background:#0A1124;padding-bottom:env(safe-area-inset-bottom,0px)}
.pad-top{display:flex;align-items:center;gap:10px;padding:8px 12px}
.pad-name{font-weight:600}
.pad-status{margin-left:auto;font-size:.86rem;color:var(--muted)}
.pad-status.ok{color:var(--ok)}
.pad-tools{padding:0 8px 8px;justify-content:center}
.pad-area{flex:1;min-height:0;display:grid;place-items:center;padding:0 8px}
.pad-area .surface{position:relative;inset:auto;border-radius:12px;overflow:hidden}
.pad-hint{margin:6px 0;text-align:center;font-size:.8rem;color:var(--muted)}
@media (orientation:landscape){.pad-hint{display:none}}

.recs{margin-top:36px}
.recs ul{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:8px}
.recs a{color:var(--accent)}

/* dialogs */
.dlg{border:1px solid var(--line);border-radius:20px;background:var(--panel);color:var(--text);padding:24px;width:min(460px,calc(100% - 24px));max-height:calc(100dvh - 24px)}
.dlg::backdrop{background:rgba(5,8,18,.7);backdrop-filter:blur(3px)}
.dlg h2{margin:0 0 8px;font-size:1.4rem}
.dlg .field select{width:100%}
.dlg-actions{display:flex;justify-content:flex-end;gap:10px;margin-top:18px}
.dlg-actions.wrap{flex-wrap:wrap}
.dlg-actions .btn{min-height:46px;padding:0 16px}
.qr{background:#fff;border-radius:16px;padding:14px;display:grid;place-items:center;margin:14px auto;width:min(280px,100%)}
.qr svg{width:100%;height:auto;display:block}
.qr-link{font-size:.78rem;color:var(--muted);word-break:break-all;margin:0}
.wide-dlg{width:min(860px,calc(100% - 24px))}
.r-head{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap}
.r-head select{width:auto}
.r-meta{display:flex;flex-wrap:wrap;gap:6px 18px;color:var(--muted);font-size:.9rem;margin:8px 0 16px}
.r-meta b{color:var(--text);font-weight:600}
.r-who{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.r-fields{display:grid;gap:12px;margin-top:6px}
.r-fields label>span{display:block;font-size:.9rem;color:var(--muted);margin:0 0 6px;font-weight:600}
.r-fields textarea{width:100%;min-height:82px;padding:12px 14px;line-height:1.45;resize:vertical;background:var(--bg)}
#rGen{margin:4px 0 10px}

.toast{position:fixed;left:50%;bottom:100px;transform:translate(-50%,12px);background:var(--text);color:var(--bg);padding:10px 16px;border-radius:10px;font-weight:500;font-size:.94rem;max-width:min(520px,calc(100% - 32px));opacity:0;pointer-events:none;transition:opacity .2s,transform .2s;z-index:100}
.toast.on{opacity:1;transform:translate(-50%,0)}

@media (max-width:860px){
 .lobby{grid-template-columns:1fr;align-items:start}
 .controls{grid-template-columns:1fr;gap:6px}
 .ctl-side:not(.right){display:none}
 .ctl-side.right{position:absolute;top:12px;right:10px}
 .clock{display:none}
}
@media (max-width:700px){
 .panel{position:fixed;inset:0;width:100%;transform:translateY(100%);transition:transform .22s;z-index:40;border:0;padding-top:env(safe-area-inset-top,0px)}
 .panel>*{min-width:0}
 #v-call.panel-open .panel{width:100%;transform:none}
 .round{width:44px;height:44px}
 .round .ic{width:20px;height:20px}
 .round.leave{width:54px}
 .ctl-mid{gap:6px;flex-wrap:wrap}
 .stage{gap:8px;padding:8px}
 .points{grid-template-columns:1fr}
 .r-who{grid-template-columns:1fr}
 .secure span,.pill span:not(.rd){display:none}
 .topbar{padding:10px 150px 10px 12px;gap:8px}
 .pop.menu{right:8px;left:8px;min-width:0}
 .pop.react{flex-wrap:wrap;width:calc(100% - 32px);justify-content:center}
 .tile .toolbar{left:6px;top:6px;right:6px;flex-wrap:nowrap;overflow-x:auto;pointer-events:auto;scrollbar-width:none}
 .tile .toolbar::-webkit-scrollbar{display:none}
 .tb-group{flex:none}
 .tb-group button{width:32px;height:32px}
}
@media (prefers-reduced-motion:reduce){*{transition:none!important;animation-duration:.01ms!important}}
@media print{body{background:#fff}}