/* 13 · Mai intro v2. Dark edit-suite world, one fresh accent (chartreuse), Geist + Instrument Serif + Geist Mono. */
@font-face{font-family:"Geist";src:url(fonts/geist-latin-wght-normal.woff2) format("woff2");font-weight:100 900;font-display:block}
@font-face{font-family:"Instrument Serif";src:url(fonts/instrument-serif-latin-400-normal.woff2) format("woff2");font-weight:400;font-style:normal;font-display:block}
@font-face{font-family:"Instrument Serif";src:url(fonts/instrument-serif-latin-400-italic.woff2) format("woff2");font-weight:400;font-style:italic;font-display:block}
@font-face{font-family:"Geist Mono";src:url(fonts/geist-mono-latin-400-normal.woff2) format("woff2");font-weight:400;font-display:block}
@font-face{font-family:"Geist Mono";src:url(fonts/geist-mono-latin-500-normal.woff2) format("woff2");font-weight:500;font-display:block}

:root{--bg:#0A0B0E;--p1:#121419;--p2:#181B21;--p3:#20242C;--ln:rgba(255,255,255,.075);--ln2:rgba(255,255,255,.13);
  --tx:#EEEBE5;--tx2:#A3A8B2;--tx3:#666C77;--acc:#C9F26B;--acc2:#9DD13B;--vio:#9B8CFF;--warn:#FF6B5B}
*{box-sizing:border-box}
html,body{margin:0;background:#050506;color:var(--tx);font-family:"Geist",system-ui,sans-serif}
body{min-height:100vh;min-height:100dvh}
/* page: the frame fits the viewport width AND height (minus the control bar); the page itself can always scroll */
#page{display:flex;flex-direction:column;align-items:center;padding:10px 10px 18px;gap:8px}
#frame{position:relative;width:min(calc(100vw - 20px),calc((100vh - 86px) * 16 / 9));width:min(calc(100vw - 20px),calc((100dvh - 86px) * 16 / 9));
  aspect-ratio:16/9;min-width:280px;overflow:hidden;border-radius:10px;background:var(--bg);box-shadow:0 20px 60px rgba(0,0,0,.5)}
#stage{position:absolute;left:0;top:0;width:1920px;height:1080px;transform-origin:0 0;overflow:hidden;background:var(--bg);
  -webkit-font-smoothing:antialiased;font-kerning:normal;contain:layout paint}
#gfx{position:absolute;inset:0}
#grain{position:absolute;inset:-40px;pointer-events:none;opacity:.07;mix-blend-mode:overlay;z-index:50}
#bar{width:min(calc(100vw - 20px),calc((100vh - 86px) * 16 / 9));width:min(calc(100vw - 20px),calc((100dvh - 86px) * 16 / 9));min-width:280px;
  display:flex;align-items:center;gap:12px;height:44px;padding:0 4px;font:500 13px/1 "Geist Mono",monospace;color:var(--tx2)}
#bar a.back{color:var(--tx2);text-decoration:none;white-space:nowrap;font-family:"Geist",sans-serif;font-weight:500;font-size:14px;padding:8px 2px}
#bar a.back:hover{color:var(--tx)}
#bar button{flex:none;width:40px;height:40px;border-radius:50%;border:1px solid var(--ln2);background:var(--p2);color:var(--tx);cursor:pointer;display:grid;place-items:center;padding:0}
#bar button:hover{border-color:var(--acc)}
#bar button svg{display:block}
#scrub{flex:1;min-width:60px;accent-color:var(--acc);height:28px;cursor:pointer}
#time{white-space:nowrap;min-width:92px;text-align:right}
#about{max-width:900px;margin:6px 12px 0;color:var(--tx3);font-size:13px;line-height:1.5;text-align:center}
#bigplay{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);z-index:5;display:flex;align-items:center;gap:12px;cursor:pointer;
  padding:14px 24px 14px 20px;border-radius:999px;border:1px solid rgba(201,242,107,.5);background:rgba(10,11,14,.78);backdrop-filter:blur(10px);
  color:var(--tx);font:600 16px/1 "Geist",sans-serif;letter-spacing:.01em;box-shadow:0 10px 40px rgba(0,0,0,.45);transition:transform .2s,background .2s}
#bigplay:hover{transform:translate(-50%,-50%) scale(1.04);background:rgba(20,22,26,.9)}
#bigplay .tri{width:0;height:0;border-left:13px solid var(--acc);border-top:8px solid transparent;border-bottom:8px solid transparent}
#bigplay.hide{display:none}
@media (max-width:560px){#bar{gap:8px}#bar .lbl{display:none}#time{min-width:0;font-size:12px}#bigplay{padding:10px 16px 10px 14px;font-size:14px}}
/* screenshot mode (?paused / ?shot): the stage fills the window exactly, no chrome */
html.shot,html.shot body{overflow:hidden;background:var(--bg)}
html.shot #page{padding:0}
html.shot #frame{width:100vw;border-radius:0;box-shadow:none}
html.shot #bar,html.shot #about,html.shot #bigplay{display:none}

/* ---------- stage content ---------- */
.abs{position:absolute;left:0;top:0}
.mono{font-family:"Geist Mono",monospace}
#photoWrap{position:absolute;inset:0;overflow:hidden}
#pBg,#pFg{position:absolute;left:0;top:0;transform-origin:0 0;pointer-events:none}
#world{position:absolute;left:0;top:0;width:1920px;height:1080px;transform-origin:0 0;background:var(--bg);backface-visibility:hidden}
/* edit UI */
.ui-top{position:absolute;left:0;top:0;width:1920px;height:56px;border-bottom:1px solid var(--ln);display:flex;align-items:center;padding:0 28px;gap:18px;
  font:500 15px/1 "Geist",sans-serif;color:var(--tx2)}
.ui-top .dot{width:12px;height:12px;border-radius:50%;background:var(--acc);box-shadow:0 0 12px rgba(201,242,107,.6)}
.ui-top .file{color:var(--tx)}
.ui-top .tabs{margin-left:auto;margin-right:auto;display:flex;gap:28px;font-size:14px;letter-spacing:.02em}
.ui-top .tabs span.on{color:var(--tx);position:relative}
.ui-top .tabs span.on:after{content:"";position:absolute;left:0;right:0;bottom:-19px;height:2px;background:var(--acc)}
.ui-top .tc{font:500 16px/1 "Geist Mono",monospace;color:var(--tx);letter-spacing:.02em}
.panel{position:absolute;border-radius:14px;background:var(--p1);border:1px solid var(--ln)}
.panel h4{margin:0;padding:18px 20px 14px;font:500 12px/1 "Geist Mono",monospace;letter-spacing:.14em;text-transform:uppercase;color:var(--tx3);border-bottom:1px solid var(--ln)}
.plan .row{position:relative;display:flex;align-items:center;gap:14px;height:62px;padding:0 20px;font-size:17px;font-weight:500;color:var(--tx2);border-bottom:1px solid var(--ln)}
.plan .row .n{font:500 13px/1 "Geist Mono",monospace;color:var(--tx3);width:22px}
.plan .row .ck{margin-left:auto;width:22px;height:22px;border-radius:6px;border:1.5px solid var(--ln2);display:grid;place-items:center}
.plan .row .ck svg{opacity:0}
.plan .row .hi{position:absolute;left:0;top:10px;bottom:10px;width:3px;border-radius:2px;background:var(--acc);opacity:0}
.insp .prop{display:flex;justify-content:space-between;align-items:center;height:48px;padding:0 20px;font-size:15px;color:var(--tx2);border-bottom:1px solid var(--ln)}
.insp .prop b{font:500 15px/1 "Geist Mono",monospace;color:var(--tx);font-weight:500}
.insp .prop .kf{display:inline-block;width:10px;height:10px;transform:rotate(45deg);background:var(--vio);margin-left:10px;opacity:0}
.insp .sec{padding:16px 20px 8px;font:500 12px/1 "Geist Mono",monospace;letter-spacing:.14em;text-transform:uppercase;color:var(--tx3)}
.viewer{position:absolute;left:384px;top:76px;width:1152px;height:648px;border-radius:6px;overflow:hidden;background:#000;
  box-shadow:0 0 0 1px var(--ln2),0 30px 80px -20px rgba(0,0,0,.8)}
.viewer .clip{position:absolute;left:0;top:0;transform-origin:0 0;transform:scale(.6)}
.tl{position:absolute;left:24px;top:744px;width:1872px;height:312px}
.tl .hdr{position:absolute;left:0;width:112px;height:100%;font:500 13px/1 "Geist Mono",monospace;color:var(--tx3)}
.tl .hdr div{position:absolute;left:16px}
.lane{position:absolute;left:126px;right:0;border-radius:6px;background:rgba(255,255,255,.022)}
.blk{position:absolute;top:4px;bottom:4px;border-radius:5px;overflow:hidden}
.blk.v{background:linear-gradient(#2A4A5E,#1E3747);box-shadow:inset 0 0 0 1px rgba(255,255,255,.1)}
.blk.s{background:#23262E;box-shadow:inset 0 0 0 1px rgba(255,255,255,.08);font:500 13px/1.25 "Geist",sans-serif;color:var(--tx2);padding:6px 9px;white-space:nowrap}
.blk.t{background:rgba(201,242,107,.14);box-shadow:inset 0 0 0 1.5px var(--acc);font:600 13px/1 "Geist Mono",monospace;color:var(--acc);padding:0 10px;display:flex;align-items:center}
.blk .lbl{position:absolute;left:10px;top:7px;font:500 12px/1 "Geist Mono",monospace;color:rgba(255,255,255,.75);z-index:2}
.ruler{position:absolute;left:126px;right:0;top:0;height:28px;font:500 11px/1 "Geist Mono",monospace;color:var(--tx3)}
.playhead{position:absolute;top:0;width:2px;height:312px;margin-left:-1px;background:var(--tx);z-index:5}
.playhead:before{content:"";position:absolute;left:-7px;top:0;width:16px;height:14px;border-radius:3px 3px 8px 8px;background:var(--tx)}
.mark{position:absolute;z-index:6;border-radius:6px;border:2px solid var(--acc);background:repeating-linear-gradient(135deg,rgba(201,242,107,.20) 0 6px,rgba(201,242,107,.05) 6px 12px)}
.mark .tag{position:absolute;left:50%;top:-40px;transform:translateX(-50%);white-space:nowrap;padding:6px 10px;border-radius:7px;background:var(--acc);color:#0A0B0E;font:600 14px/1 "Geist Mono",monospace}
.blade{position:absolute;width:2px;margin-left:-1px;background:#fff;box-shadow:0 0 14px 3px rgba(201,242,107,.9);z-index:6}
.pill{position:absolute;white-space:nowrap;padding:9px 14px;border-radius:10px;background:var(--acc);color:#0A0B0E;font:600 17px/1 "Geist",sans-serif;box-shadow:0 12px 30px -8px rgba(201,242,107,.5);z-index:20}
.pill.num{font-family:"Geist Mono",monospace;font-size:16px;padding:7px 10px}
.chipdelta{position:absolute;padding:6px 10px;border-radius:7px;background:#fff;color:#0A0B0E;font:600 15px/1 "Geist Mono",monospace;z-index:7}
.zframe{position:absolute;border:2.5px solid var(--vio);border-radius:4px;box-shadow:0 0 0 2000px rgba(0,0,0,.25)}
.zframe:before,.zframe:after{content:"";position:absolute;width:18px;height:18px;border-color:#fff;border-style:solid}
.zframe:before{left:-6px;top:-6px;border-width:3px 0 0 3px}.zframe:after{right:-6px;bottom:-6px;border-width:0 3px 3px 0}
.pauseglyph{position:absolute;left:910px;top:350px;width:100px;height:100px;border-radius:50%;background:rgba(10,11,14,.55);backdrop-filter:blur(8px);
  box-shadow:0 0 0 1px rgba(255,255,255,.2);display:flex;align-items:center;justify-content:center;z-index:9}
.pauseglyph i{display:inline-block;width:10px;height:34px;border-radius:3px;background:#fff;margin:0 5px}
/* the lesson clip (authored at 1920×1080) */
.clip{width:1920px;height:1080px;overflow:hidden;background:#1B3444}
.clip .scene{position:absolute;inset:0;transform-origin:0 0}
.clip .board{position:absolute;left:1000px;top:130px;width:820px;height:600px;border-radius:22px;background:linear-gradient(160deg,#16252E,#0F1B22);
  box-shadow:0 0 0 2px rgba(255,255,255,.06),0 40px 80px -30px rgba(0,0,0,.6);overflow:hidden}
.board .bt{position:absolute;left:52px;top:46px;font:600 40px/1 "Geist",sans-serif;color:#E9F1F4;letter-spacing:-.01em}
.board .bf{position:absolute;left:54px;top:112px;font:400 30px/1 "Geist Mono",monospace;color:#7F99A6}
.board .bf sup{font-size:.6em}
.board .kc{position:absolute;left:52px;top:112px;width:716px;padding:18px 24px 20px 26px;border-radius:14px;background:rgba(201,242,107,.10);border-left:6px solid var(--acc)}
.board .kc .k1{font:500 17px/1 "Geist Mono",monospace;letter-spacing:.12em;color:var(--acc);text-transform:uppercase}
.board .kc .k2{margin-top:12px;font:600 33px/1.2 "Geist",sans-serif;color:#F4F7F2}
.board .kc .k2 em{font-style:normal;color:var(--acc)}
.bar{position:absolute;bottom:88px;width:118px}
.bar .base{position:absolute;left:0;right:0;bottom:0;background:#557482;border-radius:0 0 4px 4px}
.bar .int{position:absolute;left:0;right:0;background:var(--acc);border-radius:6px 6px 0 0}
.bar .v{position:absolute;left:-30px;right:-30px;text-align:center;font:600 27px/1 "Geist Mono",monospace;color:#F4F7F2}
.bar .x{position:absolute;left:-30px;right:-30px;top:100%;margin-top:16px;text-align:center;font:500 20px/1 "Geist Mono",monospace;color:#7F99A6}
.clip .chrome{position:absolute;left:0;right:0;top:0;height:120px;padding:34px 44px;background:linear-gradient(rgba(0,0,0,.45),rgba(0,0,0,0));font:500 24px/1 "Geist",sans-serif;color:rgba(255,255,255,.88)}
.clip .chrome span{color:rgba(255,255,255,.55)}
.clip .prog{position:absolute;left:44px;right:44px;bottom:30px;height:5px;border-radius:3px;background:rgba(255,255,255,.22)}
.clip .prog i{position:absolute;left:0;top:0;bottom:0;width:26%;border-radius:3px;background:#fff}
.clip .ptime{position:absolute;right:44px;bottom:48px;font:500 20px/1 "Geist Mono",monospace;color:rgba(255,255,255,.7)}
.clip .edtag{position:absolute;right:44px;top:30px;padding:9px 14px;border-radius:9px;background:var(--acc);color:#0A0B0E;font:600 18px/1 "Geist Mono",monospace;letter-spacing:.06em}
.cap{position:absolute;left:0;right:0;bottom:92px;text-align:center}
.cap .dense{display:inline-block;max-width:1240px;padding:12px 26px 14px;background:rgba(0,0,0,.74);color:#fff;font:500 34px/1.36 "Geist",sans-serif;text-align:left}
.cap .clean{display:inline-block;padding:12px 26px 15px;border-radius:12px;background:rgba(8,10,12,.78);color:#fff;font:600 42px/1.15 "Geist",sans-serif;letter-spacing:-.005em}
.cap .clean em{font-style:normal;color:var(--acc)}
.learner{position:absolute;left:1528px;top:760px;width:340px;height:214px;border-radius:18px;overflow:hidden;box-shadow:0 0 0 3px rgba(255,255,255,.18),0 20px 40px rgba(0,0,0,.45)}
.learner .lt{position:absolute;left:14px;bottom:12px;font:500 16px/1 "Geist Mono",monospace;color:rgba(255,255,255,.7)}
.qm{position:absolute;font:700 44px/1 "Geist",sans-serif;color:#FFD66B;text-shadow:0 4px 12px rgba(0,0,0,.4)}
.okb{position:absolute;right:14px;top:12px;width:46px;height:46px;border-radius:50%;background:var(--acc);display:grid;place-items:center}
/* compare */
.cmpline{position:absolute;top:0;bottom:0;width:4px;margin-left:-2px;background:#fff;box-shadow:0 0 20px rgba(0,0,0,.5);z-index:8}
.cmplbl{position:absolute;top:58px;padding:8px 14px;border-radius:8px;font:600 20px/1 "Geist Mono",monospace;letter-spacing:.08em;text-transform:uppercase;z-index:8}
/* photo section */
.lower{position:absolute;left:96px;top:846px;z-index:30}
.lower .rule{width:56px;height:3px;border-radius:2px;background:var(--acc);margin-bottom:18px}
.nm{font:400 76px/1 "Instrument Serif",serif;color:#fff;letter-spacing:.005em}
.role{margin-top:12px;font:500 24px/1.3 "Geist",sans-serif;color:rgba(255,255,255,.86)}
.role span{display:inline-block}
.shade{position:absolute;left:0;right:0;bottom:0;height:520px;background:linear-gradient(rgba(5,6,8,0),rgba(5,6,8,.62) 60%,rgba(5,6,8,.8));z-index:25;pointer-events:none}
.col{position:absolute;left:900px;top:0;width:924px;height:1080px;z-index:30}
.lab{position:absolute;font:500 14px/1 "Geist Mono",monospace;letter-spacing:.16em;text-transform:uppercase;color:var(--acc)}
.tile{position:absolute;width:290px;height:163px;border-radius:14px;overflow:hidden;background:#14171D;box-shadow:0 0 0 1px var(--ln2)}
.tile .art{position:absolute;inset:0}
.tile .tcap{position:absolute;left:50%;bottom:10px;transform:translateX(-50%);padding:4px 9px;border-radius:5px;background:rgba(0,0,0,.72);color:#fff;font:600 12px/1 "Geist",sans-serif;white-space:nowrap;opacity:0}
.tile .flash{position:absolute;inset:0;background:#fff;opacity:0}
.tile .swipe{position:absolute;left:-40%;top:0;bottom:0;width:30%;background:linear-gradient(90deg,rgba(201,242,107,0),rgba(201,242,107,.55),rgba(201,242,107,0));transform:skewX(-18deg);opacity:0}
.tname{position:absolute;font:500 19px/1.2 "Geist",sans-serif;color:var(--tx)}
.svc{position:absolute;display:flex;align-items:center;gap:10px;height:46px;padding:0 18px 0 14px;border-radius:999px;background:var(--p2);box-shadow:inset 0 0 0 1px var(--ln2);
  font:500 18px/1 "Geist",sans-serif;color:var(--tx);white-space:nowrap}
.svc svg{flex:none}
.svc.on{box-shadow:inset 0 0 0 1.5px var(--acc)}
.endline{font:italic 400 38px/1.25 "Instrument Serif",serif;color:var(--tx)}
.endsub{font:500 19px/1.6 "Geist",sans-serif;color:var(--tx2)}
.cardkey{position:absolute;left:96px;top:96px;width:720px;height:888px;border-radius:28px;box-shadow:inset 0 0 0 1px rgba(255,255,255,.14);z-index:28;pointer-events:none}