/* AI for GTM course pages: MFI design system, scrolling-page adaptation */
:root{
  --bg:#06080c; --ink:#f3f7fa; --muted:#9fb2c2;
  --cyan:#19beee; --cyan2:#00bfef; --amber:#ffb020;
  --line:rgba(159,178,194,.18); --card:rgba(255,255,255,.03);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{background:var(--bg); color:var(--ink);
  font-family:"Inter",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;
  -webkit-font-smoothing:antialiased; line-height:1.55;}
body::before{content:""; position:fixed; inset:0; pointer-events:none; z-index:0;
  background:radial-gradient(ellipse 70% 50% at 50% 0%, rgba(25,120,190,.14), transparent 70%);}
main{position:relative; z-index:1; max-width:860px; margin:0 auto; padding:0 24px 12vh}

/* scroll progress */
#bar{position:fixed; top:0; left:0; height:3px; width:0;
  background:linear-gradient(90deg,var(--cyan),var(--cyan2)); z-index:50}

/* header */
header.site{position:sticky; top:0; z-index:40; background:rgba(6,8,12,.88);
  backdrop-filter:blur(10px); border-bottom:1px solid var(--line)}
header.site .row{max-width:860px; margin:0 auto; padding:14px 24px;
  display:flex; align-items:center; gap:14px; flex-wrap:wrap}
.brand{font-size:13px; letter-spacing:.16em; text-transform:uppercase; color:var(--muted); font-weight:600}
.brand b{color:var(--cyan); font-weight:700}
.spacer{flex:1}
.sesspill{font-size:11px; letter-spacing:.18em; color:var(--muted); border:1px solid var(--line);
  border-radius:999px; padding:5px 12px; text-transform:uppercase; white-space:nowrap}

/* hero */
.hero{padding:9vh 0 5vh; position:relative}
.hero .kicker{font-size:13px; letter-spacing:.16em; color:var(--cyan); font-weight:600; text-transform:uppercase}
.hero h1{font-size:clamp(34px,6vw,64px); line-height:1.04; font-weight:800; letter-spacing:-.02em; margin-top:14px}
.hero .lede{margin-top:18px; font-size:clamp(17px,2vw,22px); color:var(--ink); font-weight:500; max-width:44em}
.hero .sub{margin-top:10px; font-size:16px; color:var(--muted); max-width:46em}
.heroart{margin-top:28px; width:100%; aspect-ratio:16/6; border-radius:16px; border:1px solid var(--line);
  background:radial-gradient(ellipse 60% 90% at 30% 50%, rgba(25,190,238,.16), transparent 65%),
             radial-gradient(ellipse 50% 80% at 75% 40%, rgba(0,120,190,.12), transparent 60%), var(--card);
  overflow:hidden; display:flex; align-items:center; justify-content:center}
.heroart img{width:100%; height:100%; object-fit:cover; mix-blend-mode:screen;
  filter:contrast(1.42) brightness(1.05) saturate(1.05)}
.heroart .ph{font-size:12px; letter-spacing:.14em; color:rgba(159,178,194,.5); text-transform:uppercase}

/* sections */
section{padding:5vh 0 1vh}
h2{font-size:clamp(24px,3.4vw,36px); line-height:1.1; font-weight:800; letter-spacing:-.015em}
h3{font-size:clamp(18px,2.2vw,23px); font-weight:700; margin-top:26px}
p{margin-top:14px; color:var(--ink); max-width:46em}
p.mut, .mut{color:var(--muted)}
.reveal{opacity:0; transform:translateY(14px); transition:opacity .5s ease, transform .5s ease}
.reveal.on{opacity:1; transform:none}

ul.list{margin-top:18px; list-style:none; display:flex; flex-direction:column; gap:12px; max-width:46em}
ul.list li{font-size:17px; line-height:1.45; padding-left:24px; position:relative; font-weight:500}
ul.list li::before{content:""; position:absolute; left:0; top:.58em; width:8px; height:8px; border-radius:2px; background:var(--cyan)}
ul.list li b{font-weight:700}
ol.steps{margin-top:18px; list-style:none; counter-reset:s; display:flex; flex-direction:column; gap:14px; max-width:46em}
ol.steps li{padding-left:52px; position:relative; font-size:17px; line-height:1.45}
ol.steps li::before{counter-increment:s; content:counter(s); position:absolute; left:0; top:-.1em;
  width:34px; height:34px; border-radius:9px; border:1px solid var(--cyan); color:var(--cyan);
  font-size:16px; font-weight:700; display:flex; align-items:center; justify-content:center}

.card{margin-top:20px; border:1px solid var(--line); border-radius:14px; padding:22px 24px; background:var(--card)}
.card .label{font-size:11px; letter-spacing:.18em; text-transform:uppercase; color:var(--cyan); font-weight:700}
.callout{margin-top:20px; border:1px solid var(--cyan); border-radius:14px; padding:20px 24px}
.callout.amberline{border-color:var(--amber)}
.callout.amberline .label{color:var(--amber)}
.callout .label{font-size:11px; letter-spacing:.18em; text-transform:uppercase; color:var(--cyan); font-weight:700}
.callout p{margin-top:10px}

/* lane + platform selectors */
.picker{display:flex; flex-direction:column; gap:8px; margin-top:16px}
.picker .plabel{font-size:11px; letter-spacing:.18em; text-transform:uppercase; color:var(--muted); font-weight:700}
.pills{display:flex; flex-direction:column; gap:8px; align-items:flex-start}
.pills.hrow{flex-direction:row; flex-wrap:wrap}
.pill{border:1px solid var(--line); border-radius:999px; padding:8px 16px; font-size:14px; font-weight:600;
  color:var(--muted); background:transparent; cursor:pointer; font-family:inherit}
.pill:hover{border-color:var(--cyan); color:var(--ink)}
.pill.on{border-color:var(--cyan); color:var(--cyan)}

/* prompt blocks */
.promptblock{margin-top:22px; border:1px solid var(--cyan); border-radius:14px; overflow:hidden}
.promptblock .pbhead{display:flex; align-items:center; gap:12px; padding:14px 18px; border-bottom:1px solid var(--line)}
.promptblock .pbhead .t{font-weight:700; font-size:15px}
.promptblock .pbhead .lanechip{margin-left:auto; font-size:11px; letter-spacing:.14em; text-transform:uppercase; color:var(--cyan); white-space:nowrap}
.promptblock pre{padding:18px; white-space:pre-wrap; font-family:"SF Mono",ui-monospace,Menlo,monospace;
  font-size:13.5px; line-height:1.6; color:var(--ink); background:rgba(255,255,255,.02); max-height:420px; overflow:auto}
.promptblock .pbfoot{display:flex; align-items:center; gap:10px; padding:12px 18px; border-top:1px solid var(--line); flex-wrap:wrap}
.copybtn{border:1px solid var(--cyan); background:transparent; color:var(--cyan); border-radius:10px;
  padding:9px 18px; font-size:14px; font-weight:700; cursor:pointer; font-family:inherit}
.copybtn:hover{background:rgba(25,190,238,.1)}
.copybtn.done{color:#06080c; background:var(--cyan)}
.keepnote{font-size:13px; color:var(--muted); flex:1; min-width:220px}
.keepnote b{color:var(--ink)}

/* checklists */
.checklist{margin-top:18px; display:flex; flex-direction:column; gap:10px; max-width:46em}
.checklist label{display:flex; gap:12px; align-items:flex-start; font-size:16px; cursor:pointer; padding:12px 16px;
  border:1px solid var(--line); border-radius:12px; background:var(--card)}
.checklist input{margin-top:4px; accent-color:var(--cyan); width:16px; height:16px}
.checklist label.done{border-color:rgba(25,190,238,.5)}
.checklist label.done span{color:var(--muted); text-decoration:line-through}

/* video slot */
.video-slot{margin-top:22px; border:1px solid var(--line); border-radius:16px; aspect-ratio:16/9; overflow:hidden;
  display:flex; align-items:center; justify-content:center; background:var(--card)}
.video-slot video{width:100%; height:100%}
.video-slot .ph{text-align:center; padding:20px}
.video-slot .ph .t{font-weight:700; font-size:17px}
.video-slot .ph .s{margin-top:6px; font-size:13px; color:var(--muted); letter-spacing:.1em; text-transform:uppercase}

/* footer nav */
.pagenav{margin-top:8vh; display:flex; gap:14px; flex-wrap:wrap}
.pagenav a{flex:1; min-width:220px; border:1px solid var(--line); border-radius:14px; padding:18px 20px;
  text-decoration:none; color:var(--ink); background:var(--card)}
.pagenav a:hover{border-color:var(--cyan)}
.pagenav .dir{display:block; font-size:11px; letter-spacing:.18em; text-transform:uppercase; color:var(--cyan); font-weight:700}
.pagenav .nm{display:block; margin-top:8px; font-weight:700; font-size:16px}
footer.site{border-top:1px solid var(--line); margin-top:10vh}
footer.site .row{max-width:860px; margin:0 auto; padding:26px 24px; font-size:13px; color:var(--muted)}

/* copilot widget */
#cp-fab{position:fixed; right:22px; bottom:22px; z-index:60; border:1px solid var(--cyan); background:#0a1017;
  color:var(--cyan); border-radius:999px; padding:13px 20px; font-size:14px; font-weight:700; cursor:pointer;
  font-family:inherit; box-shadow:0 8px 30px rgba(0,0,0,.5)}
#cp-fab:hover{background:rgba(25,190,238,.12)}
#cp-panel{position:fixed; right:22px; bottom:80px; z-index:60; width:min(420px, calc(100vw - 44px));
  height:min(560px, 70vh); background:#0a1017; border:1px solid var(--line); border-radius:16px;
  display:none; flex-direction:column; overflow:hidden; box-shadow:0 20px 60px rgba(0,0,0,.6)}
#cp-panel.open{display:flex}
#cp-head{padding:14px 18px; border-bottom:1px solid var(--line); display:flex; align-items:center; gap:10px}
#cp-head .t{font-weight:700; font-size:15px}
#cp-head .m{font-size:11px; color:var(--muted); letter-spacing:.12em; text-transform:uppercase}
#cp-head .x{margin-left:auto; background:none; border:none; color:var(--muted); font-size:18px; cursor:pointer}
#cp-log{flex:1; overflow-y:auto; padding:16px; display:flex; flex-direction:column; gap:12px}
.cp-msg{max-width:88%; padding:11px 14px; border-radius:12px; font-size:14px; line-height:1.5; white-space:pre-wrap}
.cp-msg.me{align-self:flex-end; background:rgba(25,190,238,.14); border:1px solid rgba(25,190,238,.3)}
.cp-msg.bot{align-self:flex-start; background:var(--card); border:1px solid var(--line)}
.cp-note{font-size:12px; color:var(--muted); text-align:center; padding:4px 10px}
#cp-inrow{display:flex; gap:8px; padding:12px; border-top:1px solid var(--line)}
#cp-in{flex:1; background:rgba(255,255,255,.04); border:1px solid var(--line); border-radius:10px;
  color:var(--ink); padding:10px 12px; font-size:14px; font-family:inherit; resize:none; min-height:42px; max-height:120px}
#cp-send{border:1px solid var(--cyan); background:transparent; color:var(--cyan); border-radius:10px;
  padding:0 16px; font-weight:700; cursor:pointer; font-family:inherit}
#cp-gate{padding:20px; display:flex; flex-direction:column; gap:10px}
#cp-gate p{font-size:14px; color:var(--muted)}
#cp-email{background:rgba(255,255,255,.04); border:1px solid var(--line); border-radius:10px; color:var(--ink);
  padding:11px 12px; font-size:14px; font-family:inherit}
@media (max-width:640px){ .hero{padding:6vh 0 4vh} main{padding:0 18px 10vh} }