/* Ask MT panel: a floating button and a side panel that sit over every course page. */
.mt-ask[hidden],.mt-panel[hidden]{display:none!important}
.mt-ask{position:fixed;right:calc(18px + env(safe-area-inset-right,0px));bottom:calc(18px + env(safe-area-inset-bottom,0px));z-index:60;display:flex;align-items:center;gap:8px;font:700 15px var(--sans);color:var(--navy);background:var(--orange);border:0;border-radius:999px;padding:12px 18px;box-shadow:0 6px 20px #0006;cursor:pointer}
.mt-ask:focus-visible{outline:3px solid var(--white);outline-offset:3px}
.mt-dot{width:9px;height:9px;border-radius:50%;background:var(--navy);box-shadow:0 0 0 2px var(--orange)}
.mt-panel{position:fixed;right:calc(18px + env(safe-area-inset-right,0px));bottom:calc(78px + env(safe-area-inset-bottom,0px));z-index:61;width:min(420px,calc(100vw - 36px));max-height:min(640px,calc(100vh - 110px));display:flex;flex-direction:column;background:var(--navy);color:var(--white);border:1px solid var(--line);border-radius:14px;box-shadow:0 18px 50px #000a;overflow:hidden}
.mt-panel header{display:flex;justify-content:space-between;align-items:flex-start;gap:10px;padding:14px 16px;background:var(--blue);border-bottom:1px solid var(--line)}
.mt-panel header b{font:700 18px var(--sans);display:block}
.mt-panel header small{color:var(--muted);font-size:13px}
.mt-x{background:none;border:0;color:var(--white);font-size:26px;line-height:1;cursor:pointer;padding:0 4px}
.mt-body{padding:14px 16px;overflow:auto;flex:1;min-height:90px;display:flex;flex-direction:column;gap:12px}
.mt-hello{margin:0;color:var(--muted);line-height:1.5}
.mt-card{background:var(--paper);color:var(--ink);border-radius:10px;padding:14px 16px}
.mt-card h3{margin:0 0 6px;font:700 16px var(--sans)}
.mt-card p{margin:0 0 10px;line-height:1.55;font-size:15px}
.mt-card .mt-go{color:var(--royal);font-weight:700;text-decoration:none}
.mt-card .mt-go:hover{text-decoration:underline}
.mt-from{display:block;color:#5a6b8c;font-size:12px;text-transform:uppercase;letter-spacing:.06em;margin-bottom:4px}
.mt-more{display:flex;flex-direction:column;gap:6px}
.mt-more small{color:var(--muted)}
.mt-pick{text-align:left;background:#ffffff12;color:var(--white);border:1px solid var(--line);border-radius:8px;padding:9px 12px;font:15px var(--sans);cursor:pointer}
.mt-pick:hover,.mt-pick:focus-visible{background:#ffffff22}
.mt-pick small{color:var(--muted)}
.mt-nudge{background:#ff9b4a1f;border:1px solid #ff9b4a66;border-radius:10px;padding:12px 14px}
.mt-nudge p{margin:0 0 8px;line-height:1.5}
.mt-nudge div{display:flex;flex-wrap:wrap;gap:10px;align-items:center}
.mt-nudge a{color:var(--orange);font-weight:700}
.mt-form{display:flex;gap:8px;padding:12px 16px;border-top:1px solid var(--line)}
.mt-form input{flex:1;min-width:0;font:16px var(--sans);padding:10px 12px;border-radius:8px;border:1px solid var(--line);background:#ffffff10;color:var(--white)}
.mt-form button{padding:10px 16px}
.mt-note{margin:0;padding:0 16px 12px;font-size:12px;color:var(--muted)}
.mt-sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}
@media (max-width:520px){.mt-panel{right:8px;left:8px;width:auto;bottom:calc(72px + env(safe-area-inset-bottom,0px))}.mt-ask{right:calc(10px + env(safe-area-inset-right,0px));bottom:calc(10px + env(safe-area-inset-bottom,0px));padding:10px 13px;font-size:13px;gap:6px}}
@media print{.mt-ask,.mt-panel{display:none}}
/* Phones: a smaller button, and room at the bottom of every page so it never sits on the last line. */
@media(max-width:640px){.mt-ask{padding:9px 13px;font-size:13px}#main{padding-bottom:76px}}

.return-bar{display:block;position:sticky;top:0;z-index:40;padding:11px 24px;background:#0c2358;border-bottom:1px solid #ffffff24;color:var(--orange);font:600 15px var(--sans);text-decoration:none}.return-bar:hover{text-decoration:underline}.return-bar[hidden]{display:none}.begin-start{margin-top:18px}
.begin-guide h1{font-size:clamp(34px,3.6vw,48px);line-height:1.15}.begin-guide h1 br{display:none}.begin-guide h1 em{margin-left:.2em}
@media(min-width:900px){.topbar nav{gap:4px}.topbar nav a{padding-left:9px;padding-right:9px;white-space:nowrap}.topbar .brand span,#progress-export{white-space:nowrap}}
.begin-first{display:flex;align-items:center;gap:14px;flex-wrap:wrap;margin:0 0 20px;padding:14px 18px;background:#0c2358;border:1px solid var(--orange);border-radius:10px;color:var(--white);text-decoration:none}.begin-first b{color:var(--orange);font-size:17px}.begin-first span{flex:1 1 240px;color:#d5def2}.begin-first em{font-style:normal;font-weight:700;color:var(--orange)}.begin-first:hover{background:#102d83}
.cp-begin-wrap{padding:14px 7vw 0}.cp-begin-wrap .begin-first{margin:0 0 14px}
/* Leave room so the Comment and Ask MT buttons never sit on the last words of a page. */
main{padding-bottom:72px}footer{justify-content:center;flex-wrap:wrap;text-align:center;padding-bottom:88px}
.begin-guide a.primary{display:inline-block;padding:12px 20px;border-radius:6px;font-weight:700;text-decoration:none}
main{padding-bottom:120px}footer{padding-bottom:128px}
.big-row{display:flex;justify-content:flex-end;margin:-14px 0 10px}.big-toggle{font:700 13px var(--sans);color:var(--orange);background:transparent;border:1px solid var(--orange);border-radius:6px;padding:7px 12px;cursor:pointer}.big-toggle:hover{background:#ffffff14}.slide-top{align-items:center}.slide-top .big-toggle{margin:0 auto 0 14px;padding:4px 9px;font-size:12px;text-transform:none;letter-spacing:0}.lesson-main .slide-top .big-toggle{display:none}
@media(max-width:760px){.big-row,.big-toggle{display:none}}
@media(min-width:761px){body.fu-big .lesson-layout{grid-template-columns:minmax(0,1fr);max-width:none}body.fu-big .lesson-sidebar{display:none}body.fu-big .lesson-main{padding:18px 22px 70px}body.fu-big .big-row{margin:0 0 6px}body.fu-big .lesson-top,body.fu-big .lesson-main>h1{display:none}
body.fu-big .presentation{display:flex;flex-direction:column}body.fu-big .slide-top{order:0}body.fu-big .teaching-slide{display:contents}body.fu-big .slide-visual,body.fu-big .slide-visual:has(.live-scene){order:1;padding:8px!important;width:100%}body.fu-big .narration-area{order:2}body.fu-big .slide-copy{order:3;padding:18px 26px}body.fu-big .slide-navigation{order:4}body.fu-big .up-next{order:2}
body.fu-big .live-scene{aspect-ratio:auto;height:calc(100vh - 236px);min-height:360px;width:100%}body.fu-big .lesson-main .slide-top .big-toggle{display:inline-block}body.fu-big .mt-ask{bottom:10px;padding:7px 12px;font-size:13px}body.fu-big .fm-comment-btn{right:118px;bottom:10px;padding:7px 12px;font-size:13px}
body.fu-big .begin-guide,body.fu-big .rs-part,body.fu-big .rs{max-width:none}body.fu-big .begin-guide .walkthrough{margin-left:calc(50% - 48vw);margin-right:calc(50% - 48vw)}}
.big-on{display:none}body.fu-big .big-on{display:inline}body.fu-big .big-off{display:none}