:root{color-scheme:dark;--bg:#080f20;--panel:#13223a;--ink:#f4f0e6;--muted:#bdcbea;--accent:#315eff;--line:#425578;--yellow:#ffca55}*{box-sizing:border-box}html,body{margin:0;min-height:100%;background:var(--bg);color:var(--ink);font:16px/1.65 system-ui,sans-serif}body{overflow-x:hidden}button,input,select{font:inherit}button,a,input,select{touch-action:manipulation}button,a{cursor:pointer}button{border:1px solid var(--line);border-radius:7px;color:var(--ink);background:var(--panel);padding:9px 17px;min-height:44px}button:hover{background:#243d60}button:disabled{opacity:.5;cursor:not-allowed}.primary{background:var(--accent);border-color:var(--accent);color:#fff;font-weight:650}.primary:hover{background:#2549d2}.danger{color:#ffc4ba;border-color:#b76d64}a{color:#c4d4ff;text-underline-offset:4px}a:hover{color:white}input,select{background:#0e1a30;color:var(--ink);border:1px solid var(--line);border-radius:6px;padding:10px 12px;min-height:44px}input::placeholder{color:#b2bfd9}input{caret-color:var(--yellow)}:focus-visible{outline:3px solid var(--yellow);outline-offset:3px}::selection{background:var(--yellow);color:var(--bg)}[hidden]{display:none!important}header{display:flex;align-items:center;gap:24px;padding:16px 32px;border-bottom:1px solid #283b5e;min-height:70px}.brand{font-weight:750;color:var(--ink);text-decoration:none;font-size:20px}#connection{margin-left:auto;color:var(--muted);font-size:14px}#teacher-link{font-size:14px}.welcome{max-width:1200px;margin:9vh auto;padding:24px 32px;display:grid;grid-template-columns:1.1fr 1fr;align-items:start;gap:90px}.welcome h1{font-size:clamp(34px,4vw,56px);line-height:1.3;letter-spacing:-.03em;margin:0 0 28px;font-weight:780}.welcome-copy>p{font-size:20px;margin:0 0 28px}.welcome-copy .muted{font-size:17px;max-width:30ch}.muted{color:var(--muted)}.entry{padding:0 0 0 36px;border-left:1px solid var(--line)}h2{font-size:26px;line-height:1.4;margin:0 0 24px}label{display:block;margin-bottom:8px}input{width:100%}.entry>button{width:100%;margin-top:12px}.entry .muted{font-size:15px;margin:12px 0}.form-error{color:#ffc4ba;min-height:26px;font-size:15px}.session-line{display:flex;align-items:center;gap:16px;padding:10px 24px;flex-wrap:wrap;font-size:14px}.session-line #room-label{font-weight:650}.session-line #mode-label{color:var(--yellow)}.session-line #attendees{color:var(--muted);margin-right:auto}.session-line a{font-size:14px}#stage{position:relative;height:calc(100dvh - 264px);min-height:240px;display:grid;place-items:center;background:#040812;overflow:hidden}#frame-holder{position:relative;overflow:hidden}#frame{display:block;width:1920px;height:1080px;border:0;transform-origin:top left}#loading{position:absolute;background:var(--bg);padding:16px 24px;color:var(--muted)}nav{padding:13px 24px;display:flex;gap:10px;align-items:center;justify-content:center;flex-wrap:wrap}nav select{width:min(300px,30vw)}#page-count{font-variant-numeric:tabular-nums;min-width:58px;text-align:center;color:var(--muted)}.resources{display:flex;align-items:center;justify-content:center;gap:22px;flex-wrap:wrap;padding:0 24px 16px;font-size:14px}.resources span{color:var(--muted)}.resources button{font-size:14px}#message{background:#283459;color:#fff1c8;padding:10px 24px;text-align:center}#notes{padding:24px 32px;max-width:1200px;margin:auto;border-top:1px solid var(--line)}#notes p{white-space:pre-wrap;color:var(--muted);font-size:18px}dialog{background:var(--ink);color:var(--bg);border:0;border-radius:12px;padding:32px;max-width:min(620px,calc(100vw - 32px));width:100%;box-shadow:0 16px 60px #0007}dialog::backdrop{background:#000a}dialog h2{margin-top:12px}dialog input{color:var(--bg);background:white;border-color:#9da7ba;font-size:14px}dialog #close-share{float:right;background:transparent;color:var(--bg);border-color:#9da7ba}#qr{display:block;margin:16px auto;max-width:100%;height:auto!important}#share-code{font-size:26px;letter-spacing:.12em;font-weight:700;text-align:center;overflow-wrap:anywhere}#copy-link{margin-top:16px;width:100%}#copy-state{min-height:26px;margin:10px 0 0}#end-dialog button{margin:12px 10px 0 0}#end-dialog .danger{background:#842e26;color:white;border-color:#842e26}#stage:fullscreen{height:100dvh;width:100vw;background:#000}.screen header,.screen .session-line,.screen nav,.screen .resources{display:none}.screen #stage{height:100dvh}.screen #message{position:fixed;top:0;z-index:20;width:100%}.screen #screen-exit{position:fixed;bottom:12px;right:12px;z-index:10;opacity:.7}@media(max-width:800px){header{padding:12px 16px;gap:12px;flex-wrap:wrap}.brand{font-size:17px}#connection{font-size:12px}.welcome{grid-template-columns:1fr;gap:28px;margin:30px auto;padding:0 24px}.welcome h1{font-size:38px}.entry{border-left:0;border-top:1px solid var(--line);padding:28px 0 0}.welcome-copy .muted{max-width:100%}.session-line{padding:10px 14px;gap:10px}.session-line #attendees{margin-right:0}#stage{height:54vw;min-height:210px}nav{padding:12px;gap:8px}nav select{width:100%;order:8}nav button{padding:8px 12px;font-size:15px}.resources{gap:14px;padding:4px 16px 18px}.resources span{width:100%;text-align:center}dialog{padding:24px}#notes{padding:22px}.screen #stage{height:100dvh}}