/* Make It, Break It, Ship It — shared styles */
:root{
  color-scheme:light;
  --paper:#F4F5F0;
  --paper-2:#FFFFFF;
  --paper-3:#E9EBE3;
  --ink:#121418;
  --ink-soft:#4A5058;
  --ink-faint:#7B818A;
  --line:#D9DCD2;
  --cobalt:#2742D9;
  --cobalt-deep:#1A2FA3;
  --cobalt-wash:#E3E8FB;
  --tomato:#E5462A;
  --tomato-wash:#FCE5DF;
  --sticky:#FFD84A;
  --mint:#1FA37A;
  --board:#1A2029;
  --board-line:#2A323D;

  --f-display:"Bricolage Grotesque","Helvetica Neue",Arial,sans-serif;
  --f-body:"Atkinson Hyperlegible",Verdana,"Segoe UI",sans-serif;
  --f-mono:"JetBrains Mono",ui-monospace,SFMono-Regular,Menlo,monospace;
  --f-hand:"Caveat","Comic Sans MS","Bradley Hand",cursive;

  --pop:4px 4px 0 var(--ink);
  --pop-sm:3px 3px 0 var(--ink);
  --max:1160px;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:84px}
body{
  margin:0;background:var(--paper);color:var(--ink);
  font-family:var(--f-body);font-size:18px;line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--cobalt)}
a:hover{color:var(--cobalt-deep)}
:focus-visible{outline:3px solid var(--cobalt);outline-offset:3px;border-radius:2px}
h1,h2,h3,h4{font-family:var(--f-display);line-height:1.05;letter-spacing:-.025em;text-wrap:balance;margin:0}
p{margin:0 0 1em}
p:last-child{margin-bottom:0}
code,.mono{font-family:var(--f-mono)}

.wrap{max-width:var(--max);margin:0 auto;padding:0 28px}
.narrow{max-width:720px}
.skip{position:absolute;left:-9999px;top:8px;background:var(--ink);color:#fff;padding:8px 14px;z-index:100}
.skip:focus{left:8px}

/* ---------- header ---------- */
.site-head{position:sticky;top:0;z-index:50;background:rgba(244,245,240,.92);backdrop-filter:blur(10px);border-bottom:2px solid var(--ink)}
.site-head .wrap{display:flex;align-items:center;gap:24px;height:68px}
.logo{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--ink);font-family:var(--f-display);font-weight:800;font-size:19px;letter-spacing:-.03em;white-space:nowrap}
.logo:hover{color:var(--ink)}
.logo-mark{width:30px;height:30px;background:var(--cobalt);border:2px solid var(--ink);box-shadow:2px 2px 0 var(--ink);display:grid;place-items:center;color:#fff;font-family:var(--f-mono);font-size:13px;font-weight:700;letter-spacing:0}
.logo .dot{color:var(--tomato)}
.nav{display:flex;gap:4px;margin-left:auto;align-items:center}
.nav a{color:var(--ink);text-decoration:none;font-weight:700;font-size:15px;padding:8px 12px;border-radius:4px}
.nav a:hover{background:var(--paper-3)}
.nav a[aria-current="page"]{text-decoration:underline;text-decoration-thickness:2px;text-underline-offset:5px}
.nav .btn{margin-left:8px}
@media(max-width:480px){.site-head .logo{font-size:15.5px;gap:8px}.site-head .logo-mark{width:26px;height:26px;font-size:11px}.site-head .wrap{gap:12px}}
.menu-btn{display:none;flex:none;margin-left:auto;background:none;border:2px solid var(--ink);font:700 14px var(--f-body);padding:7px 12px;cursor:pointer;color:var(--ink)}
@media(max-width:860px){
  .menu-btn{display:block}
  .nav{display:none;position:absolute;left:0;right:0;top:68px;background:var(--paper);border-bottom:2px solid var(--ink);flex-direction:column;align-items:stretch;padding:12px 20px 20px;gap:2px}
  .nav.open{display:flex}
  .nav a{padding:12px 8px;font-size:17px}
  .nav .btn{margin:10px 0 0;text-align:center}
}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font:700 16px/1 var(--f-body);text-decoration:none;cursor:pointer;
  padding:14px 22px;border:2px solid var(--ink);background:var(--paper-2);color:var(--ink);
  box-shadow:var(--pop-sm);transition:transform .08s,box-shadow .08s;
}
.btn:hover{color:var(--ink);transform:translate(-1px,-1px);box-shadow:4px 4px 0 var(--ink)}
.btn:active{transform:translate(3px,3px);box-shadow:0 0 0 var(--ink)}
.btn-primary{background:var(--cobalt);color:#fff}
.btn-primary:hover{color:#fff}
.btn-sm{padding:10px 16px;font-size:14px}

/* ---------- type helpers ---------- */
.eyebrow{font-family:var(--f-mono);font-size:12.5px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--tomato)}
.lede{font-size:21px;line-height:1.5;color:var(--ink-soft);max-width:34em}
.hl{background:linear-gradient(transparent 58%,var(--sticky) 58%,var(--sticky) 90%,transparent 90%);padding:0 .08em;-webkit-box-decoration-break:clone;box-decoration-break:clone}
.sec{padding:104px 0}
.sec-head{margin-bottom:48px;max-width:760px}
.sec-head h2{font-size:clamp(36px,5vw,56px);font-weight:800;margin:14px 0 18px}
.rule-top{border-top:2px solid var(--ink)}

/* ---------- hero ---------- */
.hero{padding:72px 0 96px}
.hero .wrap{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.08fr);gap:56px;align-items:center}
.hero h1{font-size:clamp(46px,6.4vw,82px);font-weight:800;letter-spacing:-.04em;margin:18px 0 26px}
.hero .lede{margin-bottom:34px}
.hero-ctas{display:flex;gap:14px;flex-wrap:wrap}
.hero-facts{display:flex;flex-wrap:wrap;gap:8px 22px;margin:34px 0 0;padding:0;list-style:none;font-size:15px;color:var(--ink-soft)}
.hero-facts li{display:flex;align-items:center;gap:8px}
.hero-facts li::before{content:"";width:8px;height:8px;background:var(--mint);border:1.5px solid var(--ink)}
@media(max-width:980px){.hero .wrap{grid-template-columns:1fr;gap:44px}}

/* ---------- demo window ---------- */
.demo{background:var(--paper-2);border:2px solid var(--ink);box-shadow:8px 8px 0 var(--ink)}
.demo-bar{display:flex;align-items:center;gap:8px;padding:10px 14px;border-bottom:2px solid var(--ink);background:var(--paper-3);font-family:var(--f-mono);font-size:12px;color:var(--ink-soft)}
.demo-bar i{width:11px;height:11px;border:1.5px solid var(--ink);border-radius:50%;background:var(--paper-2)}
.demo-bar i:nth-child(1){background:var(--tomato)}
.demo-bar i:nth-child(2){background:var(--sticky)}
.demo-bar i:nth-child(3){background:var(--mint)}
.demo-bar span{margin-left:8px}
.demo-bar .bar-btns{margin-left:auto;display:flex;gap:12px}
.demo-bar button{background:none;border:0;font:700 12px var(--f-mono);color:var(--ink-soft);cursor:pointer;padding:2px 4px;text-decoration:underline;text-underline-offset:3px}
.demo-bar button:hover{color:var(--ink)}
.demo-body{display:grid;grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr)}
.chat{border-right:2px solid var(--ink);display:flex;flex-direction:column;min-height:0}
.chat-log{height:300px;overflow-y:auto;padding:14px;display:flex;flex-direction:column;gap:10px;scroll-behavior:smooth}
.msg{font-size:14px;line-height:1.45;padding:9px 12px;max-width:94%;border:1.5px solid var(--ink)}
.msg.you{align-self:flex-end;background:var(--cobalt-wash)}
.msg.ai{align-self:flex-start;background:var(--paper)}
.msg .who{display:block;font-family:var(--f-mono);font-size:10px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--ink-faint);margin-bottom:3px}
.msg.typing{color:var(--ink-faint);font-style:italic}
.msg.note{align-self:center;background:var(--sticky);font-family:var(--f-hand);font-size:21px;line-height:1.15;transform:rotate(-2deg);padding:8px 14px;box-shadow:var(--pop-sm);max-width:88%}
.chips{border-top:2px solid var(--ink);padding:12px 14px 14px;background:var(--paper)}
.chips-label{font-family:var(--f-mono);font-size:10.5px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--ink-faint);margin-bottom:8px}
.chip-row{display:flex;flex-wrap:wrap;gap:6px}
.chip{font:700 13px/1.2 var(--f-body);padding:7px 10px;border:1.5px solid var(--ink);background:var(--paper-2);color:var(--ink);cursor:pointer;box-shadow:2px 2px 0 var(--ink)}
.chip:hover{background:var(--cobalt-wash)}
.chip:active{transform:translate(2px,2px);box-shadow:none}
.chip:disabled{opacity:.4;cursor:default;box-shadow:none;background:var(--paper-3)}
.chip.warn{border-color:var(--tomato);color:var(--tomato);box-shadow:2px 2px 0 var(--tomato)}
.stage{position:relative;background:#DDEFFB;min-height:300px}
.stage canvas{display:block;width:100%;height:100%;min-height:300px;cursor:pointer;touch-action:none}
.stage canvas:focus-visible{outline:3px solid var(--cobalt);outline-offset:-3px}
.demo-cap{font-size:13px;color:var(--ink-faint);margin:16px 2px 0;line-height:1.45}
@media(max-width:620px){
  .demo-body{grid-template-columns:1fr}
  .chat{border-right:0;border-bottom:2px solid var(--ink);order:2}
  .stage{order:1;height:280px}
  .chat-log{height:220px}
}

/* ---------- the loop ---------- */
.loop{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));border:2px solid var(--ink);background:var(--paper-2)}
.loop-step{padding:28px 26px 30px;border-right:2px solid var(--ink);position:relative}
.loop-step:last-child{border-right:0}
.loop-step .n{font-family:var(--f-mono);font-size:12px;font-weight:700;color:var(--ink-faint);letter-spacing:.08em}
.loop-step h3{font-size:30px;font-weight:800;margin:10px 0 12px}
.loop-step p{font-size:16px;color:var(--ink-soft)}
.loop-step:not(:last-child)::after{content:"→";position:absolute;right:-15px;top:28px;width:28px;height:28px;display:grid;place-items:center;background:var(--sticky);border:2px solid var(--ink);font-weight:700;font-size:15px;z-index:1}
.loop-back{font-family:var(--f-mono);font-size:13px;color:var(--ink-soft);margin-top:14px;display:flex;align-items:center;gap:10px}
.loop-back::before{content:"↺";font-size:20px;color:var(--tomato)}
@media(max-width:860px){
  .loop{grid-template-columns:1fr 1fr}
  .loop-step:nth-child(2){border-right:0}
  .loop-step:nth-child(-n+2){border-bottom:2px solid var(--ink)}
  .loop-step:nth-child(2)::after{display:none}
}
@media(max-width:520px){
  .loop{grid-template-columns:1fr}
  .loop-step{border-right:0;border-bottom:2px solid var(--ink)}
  .loop-step:last-child{border-bottom:0}
  .loop-step::after{display:none!important}
}

/* ---------- five weeks ---------- */
.weeks{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:0;border:2px solid var(--ink);background:var(--paper-2)}
.week{padding:26px 22px 28px;border-right:2px solid var(--ink);display:flex;flex-direction:column;gap:10px}
.week:last-child{border-right:0}
.week.proj{background:var(--cobalt-wash)}
.week .wk{font-family:var(--f-mono);font-size:12px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--cobalt)}
.week h3{font-size:23px;font-weight:800;line-height:1.1}
.week p{font-size:15.5px;color:var(--ink-soft);line-height:1.5}
.week .makes{margin-top:auto;padding-top:14px;border-top:1.5px dashed var(--line);font-size:14px;line-height:1.4}
.week .makes b{display:block;font-family:var(--f-mono);font-size:10.5px;letter-spacing:.1em;text-transform:uppercase;color:var(--ink-faint);margin-bottom:3px}
.weeks-bracket{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));margin-top:12px}
.weeks-bracket span{grid-column:3/6;border:2px solid var(--cobalt);border-top:0;height:14px;position:relative}
.weeks-bracket em{grid-column:3/6;text-align:center;font-style:normal;font-family:var(--f-mono);font-size:12.5px;font-weight:700;color:var(--cobalt);letter-spacing:.06em;margin-top:6px}
@media(max-width:980px){
  .weeks{grid-template-columns:1fr}
  .week{border-right:0;border-bottom:2px solid var(--ink)}
  .week:last-child{border-bottom:0}
  .weeks-bracket{display:none}
}

/* ---------- wrongness board ---------- */
.board{background:var(--board);color:#E8EBEF;border-top:2px solid var(--ink);border-bottom:2px solid var(--ink);
  background-image:linear-gradient(var(--board-line) 1px,transparent 1px),linear-gradient(90deg,var(--board-line) 1px,transparent 1px);background-size:40px 40px}
.board .eyebrow{color:var(--sticky)}
.board .sec-head h2{color:#fff}
.board .lede{color:#B8C0CA}
.board-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.15fr);gap:64px;align-items:center}
.notes{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px}
.sticky{background:var(--sticky);color:#2A2410;padding:18px 18px 20px;font-family:var(--f-hand);font-size:24px;line-height:1.15;box-shadow:4px 5px 0 rgba(0,0,0,.35);min-height:150px;display:flex;flex-direction:column;justify-content:space-between;gap:10px}
.sticky:nth-child(1){transform:rotate(-2.5deg)}
.sticky:nth-child(2){transform:rotate(1.8deg);background:#FFB8A6}
.sticky:nth-child(3){transform:rotate(1deg);background:#BDEBD6}
.sticky:nth-child(4){transform:rotate(-1.4deg)}
.sticky small{font-family:var(--f-mono);font-size:11px;letter-spacing:.06em;opacity:.7}
@media(max-width:900px){.board-grid{grid-template-columns:1fr;gap:44px}}
@media(max-width:460px){.notes{grid-template-columns:1fr}}

/* ---------- tracks ---------- */
.tracks{display:grid;grid-template-columns:1fr 1fr;gap:28px}
.track{border:2px solid var(--ink);background:var(--paper-2);padding:34px 32px;box-shadow:var(--pop)}
.track .age{font-family:var(--f-display);font-weight:800;font-size:64px;letter-spacing:-.05em;line-height:1;color:var(--mint)}
.track.senior .age{color:var(--cobalt)}
.track h3{font-size:26px;margin:10px 0 14px}
.track ul{margin:18px 0 0;padding:0;list-style:none;display:grid;gap:10px}
.track li{padding-left:24px;position:relative;font-size:16.5px;line-height:1.45}
.track li::before{content:"";position:absolute;left:0;top:.5em;width:10px;height:10px;border:2px solid var(--ink);background:var(--mint)}
.track.senior li::before{background:var(--cobalt)}
.tracks-note{margin-top:24px;font-size:15.5px;color:var(--ink-soft)}
@media(max-width:820px){.tracks{grid-template-columns:1fr}}

/* ---------- demo day ---------- */
.dd{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:64px;align-items:start}
.script{border:2px solid var(--ink);background:var(--paper-2);box-shadow:var(--pop)}
.script-head{padding:12px 18px;border-bottom:2px solid var(--ink);display:flex;justify-content:space-between;font-family:var(--f-mono);font-size:12px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;background:var(--tomato);color:#fff}
.script ol{list-style:none;margin:0;padding:0}
.script li{display:grid;grid-template-columns:1fr auto;gap:16px;padding:16px 18px;border-bottom:1.5px solid var(--line);font-size:17px;align-items:baseline}
.script li:last-child{border-bottom:0;background:var(--sticky)}
.script li span{font-family:var(--f-mono);font-size:13px;color:var(--ink-faint);font-variant-numeric:tabular-nums}
.script li:last-child span{color:#5A4B0E}
@media(max-width:860px){.dd{grid-template-columns:1fr;gap:40px}}

/* ---------- safety ---------- */
.safety{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0;border-top:2px solid var(--ink)}
.safe{padding:28px 32px 30px 0;border-bottom:1.5px solid var(--line)}
.safe:nth-child(even){padding-left:32px;padding-right:0;border-left:1.5px solid var(--line)}
.safe h3{font-size:21px;margin-bottom:8px}
.safe p{font-size:16.5px;color:var(--ink-soft)}
@media(max-width:760px){.safety{grid-template-columns:1fr}.safe,.safe:nth-child(even){padding:24px 0;border-left:0}}

/* ---------- logistics ---------- */
.details{display:grid;grid-template-columns:minmax(0,1.3fr) minmax(0,1fr);gap:0;border:2px solid var(--ink);background:var(--paper-2);box-shadow:8px 8px 0 var(--ink)}
.details dl{margin:0;display:grid;grid-template-columns:1fr 1fr}
.details dl div{padding:24px 28px;border-bottom:1.5px solid var(--line);border-right:1.5px solid var(--line)}
.details dl div:nth-child(even){border-right:0}
.details dl div:nth-last-child(-n+2){border-bottom:0}
.details dt{font-family:var(--f-mono);font-size:11px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--ink-faint);margin-bottom:6px}
.details dd{margin:0;font-family:var(--f-display);font-weight:700;font-size:21px;line-height:1.2;letter-spacing:-.015em}
.details dd small{display:block;font-family:var(--f-body);font-weight:400;font-size:14px;color:var(--ink-soft);letter-spacing:0;margin-top:4px}
.details .tbc{color:var(--ink-faint)}
.details-cta{background:var(--cobalt);color:#fff;padding:36px 34px;border-left:2px solid var(--ink);display:flex;flex-direction:column;justify-content:center;gap:16px}
.details-cta h3{font-size:32px;font-weight:800}
.details-cta p{color:#D8DEFB;font-size:16.5px}
.details-cta .btn{align-self:flex-start;background:var(--sticky);color:var(--ink)}
@media(max-width:900px){.details{grid-template-columns:1fr}.details-cta{border-left:0;border-top:2px solid var(--ink)}}
@media(max-width:520px){.details dl{grid-template-columns:1fr}.details dl div{border-right:0}.details dl div:nth-last-child(2){border-bottom:1.5px solid var(--line)}}

/* ---------- faq ---------- */
.faq{border-top:2px solid var(--ink)}
.faq details{border-bottom:1.5px solid var(--line)}
.faq summary{list-style:none;cursor:pointer;padding:22px 44px 22px 0;font-family:var(--f-display);font-weight:700;font-size:21px;letter-spacing:-.015em;position:relative;line-height:1.25}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";position:absolute;right:4px;top:18px;width:28px;height:28px;border:2px solid var(--ink);display:grid;place-items:center;font-family:var(--f-mono);font-size:17px;background:var(--paper-2)}
.faq details[open] summary::after{content:"–";background:var(--sticky)}
.faq summary:hover{color:var(--cobalt)}
.faq .a{padding:0 0 24px;max-width:44em;color:var(--ink-soft);font-size:17px}

/* ---------- cta band ---------- */
.band{background:var(--sticky);border-top:2px solid var(--ink);border-bottom:2px solid var(--ink);padding:80px 0}
.band .wrap{display:flex;justify-content:space-between;align-items:center;gap:32px;flex-wrap:wrap}
.band h2{font-size:clamp(34px,4.6vw,54px);font-weight:800;max-width:14em}
.band .btn{background:var(--ink);color:#fff;box-shadow:4px 4px 0 var(--cobalt)}
.band .btn:hover{color:#fff;box-shadow:6px 6px 0 var(--cobalt)}

/* ---------- footer ---------- */
.site-foot{padding:56px 0 64px;font-size:15px;color:var(--ink-soft)}
.site-foot .wrap{display:flex;justify-content:space-between;gap:32px;flex-wrap:wrap}
.site-foot nav{display:flex;gap:22px;flex-wrap:wrap}
.site-foot a{color:var(--ink);font-weight:700;text-decoration:none}
.site-foot a:hover{text-decoration:underline}

/* ---------- page header (inner pages) ---------- */
.page-head{padding:80px 0 64px;border-bottom:2px solid var(--ink)}
.page-head h1{font-size:clamp(44px,6.5vw,80px);font-weight:800;letter-spacing:-.04em;margin:16px 0 22px;max-width:14em}

/* ---------- curriculum page ---------- */
.cw{padding:72px 0;border-bottom:2px solid var(--ink)}
.cw:last-of-type{border-bottom:0}
.cw-grid{display:grid;grid-template-columns:220px minmax(0,1fr);gap:48px}
.cw-side{position:sticky;top:100px;align-self:start}
.cw-num{font-family:var(--f-display);font-weight:800;font-size:120px;line-height:.85;letter-spacing:-.06em;color:var(--cobalt)}
.cw.proj .cw-num{color:var(--tomato)}
.cw-tag{display:inline-block;margin-top:14px;font-family:var(--f-mono);font-size:11.5px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;padding:5px 9px;border:1.5px solid var(--ink);background:var(--paper-2)}
.cw.proj .cw-tag{background:var(--tomato-wash)}
.cw h2{font-size:clamp(34px,4.4vw,48px);font-weight:800;margin:0 0 14px}
.cw .lede{margin-bottom:34px}
.cw-cols{display:grid;grid-template-columns:1fr 1fr;gap:36px;margin-top:8px}
.cw-cols h3{font-family:var(--f-mono);font-size:12px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--ink-faint);margin-bottom:12px;letter-spacing:.1em}
.cw-cols ul{margin:0;padding:0;list-style:none;display:grid;gap:10px}
.cw-cols li{padding-left:22px;position:relative;font-size:16.5px;line-height:1.45}
.cw-cols li::before{content:"→";position:absolute;left:0;color:var(--tomato);font-family:var(--f-mono);font-size:14px;top:1px}
.home-with{margin-top:34px;border:2px solid var(--ink);background:var(--paper-2);padding:18px 22px;display:grid;grid-template-columns:auto 1fr;gap:18px;align-items:center;box-shadow:var(--pop-sm)}
.home-with b{font-family:var(--f-mono);font-size:11.5px;letter-spacing:.1em;text-transform:uppercase;background:var(--sticky);border:1.5px solid var(--ink);padding:6px 9px;white-space:nowrap}
.home-with span{font-size:16.5px}
.prompt-card{font-family:var(--f-mono);font-size:14px;line-height:1.65;background:var(--board);color:#D7DDE5;padding:20px 22px;margin:28px 0 0;white-space:pre-wrap;overflow-x:auto;border:2px solid var(--ink)}
.prompt-card b{color:var(--sticky);font-weight:700}
@media(max-width:860px){
  .cw-grid{grid-template-columns:1fr;gap:18px}
  .cw-side{position:static;display:flex;align-items:flex-end;gap:18px}
  .cw-num{font-size:84px}
  .cw-cols{grid-template-columns:1fr;gap:28px}
}

.skills{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));border:2px solid var(--ink);background:var(--paper-2)}
.skill{padding:26px 24px;border-right:2px solid var(--ink)}
.skill:last-child{border-right:0}
.skill h3{font-size:28px;font-weight:800;margin-bottom:10px}
.skill p{font-size:15.5px;color:var(--ink-soft)}
@media(max-width:900px){.skills{grid-template-columns:1fr 1fr}.skill:nth-child(2){border-right:0}.skill:nth-child(-n+2){border-bottom:2px solid var(--ink)}}
@media(max-width:520px){.skills{grid-template-columns:1fr}.skill{border-right:0;border-bottom:2px solid var(--ink)}.skill:last-child{border-bottom:0}}

/* ---------- form ---------- */
.form-grid{display:grid;grid-template-columns:minmax(0,1fr) 340px;gap:64px;align-items:start;padding:72px 0 104px}
.form{border:2px solid var(--ink);background:var(--paper-2);box-shadow:8px 8px 0 var(--ink);padding:40px 40px 44px}
.form fieldset{border:0;padding:0;margin:0 0 34px}
.form legend{font-family:var(--f-display);font-weight:800;font-size:25px;letter-spacing:-.02em;margin-bottom:18px;padding:0}
.field{display:grid;gap:7px;margin-bottom:18px}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.field label,.field .lab{font-weight:700;font-size:15.5px}
.field .hint{font-size:14px;color:var(--ink-faint);margin-top:-3px}
.field input[type=text],.field input[type=email],.field input[type=tel],.field select,.field textarea{
  font:17px/1.4 var(--f-body);color:var(--ink);background:var(--paper);border:2px solid var(--ink);padding:12px 14px;width:100%;border-radius:0;
}
.field textarea{min-height:110px;resize:vertical}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;background:var(--paper-2);box-shadow:3px 3px 0 var(--cobalt);border-color:var(--cobalt)}
.opts{display:grid;gap:8px}
.opt{display:flex;gap:12px;align-items:flex-start;padding:12px 14px;border:2px solid var(--line);cursor:pointer;font-size:16px;line-height:1.4;background:var(--paper)}
.opt:hover{border-color:var(--ink)}
.opt:has(input:checked){border-color:var(--ink);background:var(--cobalt-wash)}
.opt input{margin:3px 0 0;accent-color:var(--cobalt);width:18px;height:18px;flex:none}
.req{color:var(--tomato)}
.form .btn{font-size:17px;padding:16px 26px}
.form-aside{position:sticky;top:100px;display:grid;gap:24px}
.aside-card{border:2px solid var(--ink);padding:24px 24px 26px;background:var(--paper-2)}
.aside-card h3{font-size:21px;margin-bottom:12px}
.aside-card ol{margin:0;padding-left:1.2em;display:grid;gap:10px;font-size:16px;color:var(--ink-soft)}
.aside-card.y{background:var(--sticky)}
.aside-card.y p{font-size:16px}
@media(max-width:960px){.form-grid{grid-template-columns:1fr;gap:36px}.form-aside{position:static}}
@media(max-width:560px){.form{padding:28px 22px 32px}.field-row{grid-template-columns:1fr}}

.thanks{padding:120px 0 140px;text-align:left}
.thanks .sticky{max-width:340px;transform:rotate(-2deg);margin:44px 0 0;font-size:27px}

@media(prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{transition:none!important;animation:none!important}
}

/* nav links set colour/hover at higher specificity; keep the primary button white-on-cobalt */
.nav a.btn-primary,.nav a.btn-primary:hover{color:#fff;background:var(--cobalt)}

/* ---------- teacher notes in the demo ---------- */
.msg.coach{align-self:stretch;max-width:100%;background:var(--ink);color:#fff;border-color:var(--ink)}
.msg.coach .who{color:var(--sticky)}
.chat-log{height:340px}
.stage,.stage canvas{min-height:340px}
@media(max-width:620px){.chat-log{height:260px}}

/* ---------- a lesson, to scale (15 / 60 / 15 min) ---------- */
.session-strip{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.7fr) minmax(0,1fr);border:2px solid var(--ink);background:var(--paper-2)}
.session-strip .seg{padding:28px 26px 30px;border-right:2px solid var(--ink)}
.session-strip .seg:last-child{border-right:0}
.session-strip .seg.main{background:var(--cobalt-wash)}
.session-strip .t{font-family:var(--f-mono);font-size:12px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--cobalt)}
.session-strip h3{font-size:30px;font-weight:800;margin:10px 0 12px}
.session-strip p{font-size:16px;color:var(--ink-soft)}
.session-bar{display:grid;grid-template-columns:15fr 60fr 15fr;height:12px;margin-top:14px;border:2px solid var(--ink)}
.session-bar span{background:var(--sticky)}
.session-bar span:nth-child(2){background:var(--cobalt);border-left:2px solid var(--ink);border-right:2px solid var(--ink)}
@media(max-width:820px){
  .session-strip{grid-template-columns:1fr}
  .session-strip .seg{border-right:0;border-bottom:2px solid var(--ink)}
  .session-strip .seg:last-child{border-bottom:0}
}

/* ---------- instructor ---------- */
.teacher{display:grid;grid-template-columns:300px minmax(0,1fr);gap:56px;align-items:start}
.teacher-photo{aspect-ratio:4/5;border:2px dashed var(--ink-faint);background:var(--paper-3);display:grid;place-items:center;font-family:var(--f-mono);font-size:13px;color:var(--ink-faint);box-shadow:var(--pop)}
.teacher-quote{margin:30px 0 0;padding:22px 26px;background:var(--sticky);border:2px solid var(--ink);box-shadow:var(--pop);font-size:19px;line-height:1.5;max-width:36em}
.placeholder{background:var(--tomato-wash);outline:1.5px dashed var(--tomato);outline-offset:2px;padding:0 4px}
@media(max-width:820px){.teacher{grid-template-columns:1fr;gap:32px}.teacher-photo{max-width:240px}}

/* keep the demo window bar on one line on phones */
/* Skyline Sprint: the game leads; the editable demo sits underneath. */
.demo-body{display:flex;flex-direction:column}
.stage{order:0;display:flex;flex-direction:column;min-width:0;min-height:0;height:auto;background:#15263D}
.stage canvas{display:block;width:100%;height:330px;min-height:0;flex:none;touch-action:none}
.chat{order:1;border-right:0;border-top:2px solid var(--ink)}
.chat-log{height:175px;background:var(--paper-2)}
.arcade-heading{display:flex;flex-wrap:wrap;align-items:center;gap:8px;padding:13px 14px 6px;color:#93F5D3;font:700 10px var(--f-mono);letter-spacing:.08em}
.arcade-heading #game-best{margin-left:auto;color:#C6D7DF;letter-spacing:0}
.arcade-heading button{border:0;background:transparent;color:#C6D7DF;text-decoration:underline;font:700 10px var(--f-mono);cursor:pointer;padding:5px 0 5px 6px}
.game-progress{padding:8px 14px 12px;color:#F5EEDC}
.game-progress>div{display:flex;justify-content:space-between;gap:8px;font:700 10px var(--f-mono);margin-bottom:8px}
.game-progress progress{display:block;width:100%;height:4px;border:0;background:#3B5266;accent-color:#93F5D3;border-radius:4px}
.game-progress progress::-webkit-progress-bar{background:#3B5266;border-radius:4px}.game-progress progress::-webkit-progress-value{background:#93F5D3;border-radius:4px}
.game-progress progress::-moz-progress-bar{background:#93F5D3}
.game-toolbar{display:flex;align-items:center;gap:8px;padding:10px 14px 6px}
.game-toolbar button{font:700 11px var(--f-mono);border:1px solid #607B8C;border-radius:5px;background:#203A50;color:#F3F0E3;padding:8px 10px;cursor:pointer}
.game-toolbar button:first-child{background:#93F5D3;border-color:#93F5D3;color:#16243B}
.game-toolbar button:disabled{opacity:.45;cursor:default}
.game-toolbar span{margin-left:auto;text-align:right;font:700 9px/1.5 var(--f-mono);color:#93F5D3;max-width:48%}
.runner-controls{display:grid;grid-template-columns:1.3fr 1fr;gap:10px;padding:6px 14px}
.runner-controls button{min-height:48px;border:1px solid #62798A;border-bottom:3px solid #62798A;border-radius:8px;background:#2B4359;color:#F7F1E3;font:800 16px var(--f-display);cursor:pointer;touch-action:none;user-select:none}
.runner-controls button:first-child{background:#FFD06B;color:#16243B;border-color:#B99851}
.runner-controls button small{font:700 8px var(--f-mono);margin-left:9px;letter-spacing:.03em}
.runner-controls button:active{transform:translateY(2px);border-bottom-width:1px}
.runner-controls button:disabled{opacity:.5;cursor:default}
.runner-instructions{color:#B8CCD5;font-size:10px;line-height:1.5;text-align:center;margin:3px 12px 10px}
.game-status{padding:10px 14px;background:#1C3248;font-size:12px;line-height:1.5;color:#D9E7EA;margin:0;min-height:54px;border-top:1px solid #38516A}
.demo button:focus-visible{outline:3px solid #FF9F64;outline-offset:3px}.stage canvas:focus-visible{outline:3px solid #93F5D3;outline-offset:-3px}
.hero .wrap:has(.demo.is-expanded){grid-template-columns:1fr}
.demo.is-expanded .demo-body{display:grid;grid-template-columns:minmax(0,1.8fr) minmax(275px,1fr)}
.demo.is-expanded .stage canvas{height:400px;min-height:0}
.demo.is-expanded .chat{order:1;border-top:0;border-left:2px solid var(--ink)}
.demo.is-expanded .chat-log{height:470px}
@media(max-width:620px){
  .stage canvas,.demo.is-expanded .stage canvas{height:280px;min-height:0}
  .demo.is-expanded .demo-body{display:flex;flex-direction:column}
  .demo.is-expanded .chat{border-top:2px solid var(--ink);border-left:0}
  .chat-log,.demo.is-expanded .chat-log{height:180px}
  #game-expand{display:none}.game-toolbar span{font-size:8px}.runner-controls button small{font-size:7px;margin-left:5px}
  .runner-instructions{font-size:9px}
}
.nowrap{white-space:nowrap}
.demo-bar button{white-space:nowrap}
@media(max-width:480px){.demo-bar .fname{display:none}}

/* Practical AI course: varied projects lead the page. */
.hero{padding:56px 0 80px}.hero h1{font-size:clamp(44px,5.1vw,68px)}.hero .lede{font-size:19px}
.idea-board{border:2px solid var(--ink);background:#EDEEE4;box-shadow:8px 8px 0 var(--ink);min-width:0;transform:rotate(1deg)}
.idea-board-head{display:flex;justify-content:space-between;gap:12px;padding:14px 16px;border-bottom:2px solid var(--ink);font:700 10px/1.4 var(--f-mono);letter-spacing:.05em;background:var(--ink);color:#fff}
.idea-board-head span:last-child{color:#C5DDB9;text-align:right;font-size:9px}
.idea-board-body{display:grid;grid-template-columns:1fr 1fr;gap:14px;padding:18px}
.mini-project{border:1.5px solid var(--ink);min-width:0;box-shadow:3px 3px 0 #12141822;overflow:hidden}
.mini-kicker{font:700 8px/1.4 var(--f-mono);letter-spacing:.08em;display:block}
.mini-web{grid-column:1/-1;background:#F5F2E5}
.mini-browser{display:flex;align-items:center;gap:5px;padding:9px 11px;border-bottom:1.5px solid var(--ink);background:#fff}
.mini-browser i{width:6px;height:6px;border:1px solid var(--ink);border-radius:50%}.mini-browser i:first-child{background:#F49375}.mini-browser i:nth-child(2){background:#F9D869}.mini-browser i:nth-child(3){background:#A7D6BE}
.mini-browser span{font:700 8px var(--f-mono);margin-left:8px;letter-spacing:.05em}
.mini-web-content{padding:20px;position:relative;min-height:215px}
.mini-web-content h2{font-size:30px;line-height:1.05;letter-spacing:-.04em;position:relative;z-index:1;margin:12px 0 9px;max-width:70%}
.mini-web-content p{font-size:11px;max-width:65%;line-height:1.5}
.mini-link{display:inline-block;background:#264D40;color:#fff;padding:8px 10px;font:700 9px var(--f-mono);margin-top:14px;position:relative;z-index:1}
.mini-web-art{position:absolute;right:16px;bottom:21px;width:110px;height:139px;border-radius:60px 60px 2px 2px;background:#D8DBB8;overflow:hidden}
.mini-web-art span{position:absolute;right:15px;top:20px;width:39px;height:39px;background:#EF9F62;border-radius:50%}
.mini-web-art i{position:absolute;width:140px;height:100px;background:#729078;bottom:-26px;left:-30px;transform:rotate(-32deg);border-radius:30px}
.mini-web-art b{position:absolute;width:100px;height:120px;background:#335F4C;bottom:-52px;right:-25px;transform:rotate(32deg);border-radius:30px}
.mini-poster{padding:16px;background:#FFAA86;position:relative;transform:rotate(-2deg)}
.mini-poster h2{font-size:43px;line-height:.89;letter-spacing:-.055em;position:relative;margin:24px 0 13px}
.mini-poster p{font-size:10px;line-height:1.4}.poster-orbit{position:absolute;right:9px;top:25px;font-size:100px;line-height:1;color:#DA562C;transform:rotate(15deg);opacity:.8}
.mini-planner{padding:18px 15px;background:#fff;display:flex;flex-direction:column;justify-content:center}
.mini-planner h2{font-size:25px;letter-spacing:-.04em;line-height:1.05;margin:10px 0 20px}
.mini-planner ul{list-style:none;padding:0;margin:0;display:grid;gap:13px}
.mini-planner li{font-size:11px;line-height:1.4;display:flex;gap:7px;border-bottom:1px solid #ddd;padding-bottom:9px}
.mini-planner li span{color:#2742D9;font-weight:700}
.board-note{grid-column:1/-1;justify-self:center;font:600 28px var(--f-hand);transform:rotate(-2deg);background:var(--sticky);padding:5px 20px;border:1.5px solid var(--ink);box-shadow:3px 3px 0 var(--ink)}
.board-note em{font-style:normal;text-decoration:underline;text-decoration-color:var(--tomato);text-underline-offset:3px}
.idea-board-caption{font-size:10px;line-height:1.4;padding:0 18px 13px;color:var(--ink-soft);text-align:center}
.project-section{background:#ECEEE5}
.project-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}
.project-card{display:flex;flex-direction:column;align-items:flex-start;gap:14px;border:2px solid var(--ink);background:var(--paper-2);padding:26px;box-shadow:4px 4px 0 var(--ink)}
.project-icon{display:grid;place-items:center;width:45px;height:45px;background:#DADFFA;border:1.5px solid var(--ink);font:800 27px var(--f-display)}
.project-card:nth-child(2) .project-icon{background:#FFBCA6}.project-card:nth-child(3) .project-icon{background:#FFD84A}.project-card:nth-child(4) .project-icon{background:#BDEBD6}.project-card:nth-child(5) .project-icon{background:#E7D5ED}.project-card:nth-child(6) .project-icon{background:#D4E7E9}
.project-type{font:700 10px/1.5 var(--f-mono);letter-spacing:.05em;color:var(--ink-faint)}
.project-card h3{font-size:28px;line-height:1.05;letter-spacing:-.025em}.project-card p{font-size:16px;line-height:1.55;color:var(--ink-soft)}
.project-skill{margin-top:auto;padding-top:17px;border-top:1px dashed var(--ink-faint);font-size:12px;line-height:1.5;width:100%;color:var(--cobalt)}
.project-footnote{font-size:14px;color:var(--ink-soft);margin-top:26px}
.teaching-grid{display:grid;grid-template-columns:1fr 1.2fr;gap:60px}.teaching-grid h2{font-size:clamp(36px,5vw,56px);margin-top:16px}
.game-example{border:2px solid var(--ink);background:var(--paper-2);box-shadow:5px 5px 0 var(--ink)}
.game-example>summary{display:flex;justify-content:space-between;align-items:center;gap:18px;cursor:pointer;padding:24px;font:800 22px/1.3 var(--f-display);list-style:none}
.game-example>summary::-webkit-details-marker{display:none}.game-example>summary small{font:700 11px/1.5 var(--f-mono);color:var(--cobalt);text-align:right}
.game-example>summary:hover{background:var(--cobalt-wash)}.game-example>summary:focus-visible{outline:3px solid var(--cobalt);outline-offset:4px}
.game-example[open]>summary{border-bottom:2px solid var(--ink)}
.game-example-body{padding:24px}.game-example .demo{box-shadow:4px 4px 0 var(--ink)}
.game-example .demo-body{display:grid;grid-template-columns:minmax(0,1.8fr) minmax(260px,1fr)}
.game-example .chat{border-left:2px solid var(--ink);border-top:0}.game-example .chat-log{height:425px}
.game-example #game-expand{display:none}.game-example .stage canvas{height:370px;min-height:0}
.prompt-note{margin-top:12px;font-size:15px;color:var(--ink-faint)}
.form .project-interests{margin-top:25px}.form .project-interests legend{font-size:19px;margin-bottom:8px}
.project-interests .hint{font-size:14px;line-height:1.5;color:var(--ink-faint);margin-bottom:12px}
.interest-grid{display:grid;grid-template-columns:1fr 1fr;gap:8px}.interest-grid .opt{font-size:14px;line-height:1.4}
@media(max-width:980px){.idea-board{max-width:590px;width:100%;justify-self:center}.project-grid{grid-template-columns:1fr 1fr}.hero h1{max-width:11em}.hero .lede{max-width:35em}}
@media(max-width:760px){.teaching-grid{grid-template-columns:1fr;gap:26px}.game-example .demo-body{display:flex;flex-direction:column}.game-example .chat{border-left:0;border-top:2px solid var(--ink)}.game-example .chat-log{height:190px}.game-example>summary{flex-direction:column;align-items:flex-start;padding:18px}.game-example>summary small{text-align:left}}
@media(max-width:520px){.project-grid{grid-template-columns:1fr}.project-card{padding:24px}.idea-board{transform:none;box-shadow:5px 5px 0 var(--ink)}.idea-board-body{padding:12px;gap:10px}.idea-board-head{padding:11px 12px;font-size:9px}.idea-board-head span:last-child{max-width:106px;font-size:8px}.mini-web-content{padding:14px;min-height:208px}.mini-web-content h2{font-size:27px}.mini-web-art{width:78px;height:113px;right:12px}.mini-web-content p{max-width:70%}.mini-poster{padding:12px}.mini-poster h2{font-size:36px}.poster-orbit{font-size:80px}.mini-planner{padding:13px 10px}.mini-planner h2{font-size:22px}.mini-planner li{font-size:10px}.mini-kicker{font-size:7px}.board-note{font-size:25px;padding:4px 12px}.interest-grid{grid-template-columns:1fr}.game-example-body{padding:10px}.game-example .stage canvas{height:270px}.game-example .demo-bar{padding:9px}.game-example .runner-controls button small{display:none}}

/* A playable example makes the course outcome tangible for parents. */
.hero .wrap{align-items:start;gap:40px}
.hero-example{min-width:0;scroll-margin-top:90px}
.hero-example h2{font-size:28px;line-height:1.12;letter-spacing:-.025em;margin:12px 0}
.example-intro{font-size:15px;color:var(--ink-soft);margin:0 0 20px}
.hero-example .stage canvas{height:270px}
.hero-example .chat-log{height:130px}
.hero-example .demo-cap{font-size:12px}
@media(max-width:620px){.hero-example .stage canvas{height:250px}.hero-example h2{font-size:27px}}

/* Give the 3D diorama room to breathe. */
.game-extras{background:#15263d;padding:15px;color:#e5eee9;border-top:1px solid #38516a}
.robot-picker{display:flex;align-items:center;gap:6px;flex-wrap:wrap;font:700 10px var(--f-mono);margin-bottom:18px}
.robot-picker>span{margin-right:auto;color:#b8ccd5}
.robot-picker button{cursor:pointer;border:1px solid #6c8190;background:#253c55;color:#f6f4eb;border-radius:5px;padding:7px;font:inherit}
.robot-picker button[aria-pressed=true]{background:#93f5d3;color:#16243b;border-color:#93f5d3}
.missions-heading{display:flex;justify-content:space-between;gap:10px;font:700 11px var(--f-mono);margin-bottom:10px}
.missions-heading span{color:#93f5d3}
.game-missions{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px}
.mission-card{padding:10px 8px;border:1px solid #3e5570;border-radius:6px;background:#1c3248;display:flex;flex-direction:column;gap:5px}
.mission-card b{font-size:12px}.mission-card span,.mission-card small{font-size:10px;line-height:1.4;color:#c4d5df}.mission-card progress{width:100%;height:5px;accent-color:#93f5d3;margin:3px 0}
.mission-card.complete{border-color:#93f5d3}.mission-card.complete small{color:#93f5d3}
.pickup-tip{font-size:10px;color:#b8ccd5;line-height:1.5;margin:10px 0 0}
@media(max-width:420px){.game-extras{padding:12px 10px}.game-missions{gap:5px}.mission-card{padding:8px 5px}.mission-card b{font-size:11px}.robot-picker>span{width:100%}}
.hero-example .stage canvas{height:320px}
.hero-example .demo.is-expanded .stage canvas{height:480px}
@media(max-width:620px){.hero-example .stage canvas,.hero-example .demo.is-expanded .stage canvas{height:300px}}

/* signup: server-side validation message */
.form-error{margin:0 0 26px;padding:14px 18px;border:2px solid var(--tomato);background:var(--tomato-wash);color:var(--ink);font-weight:700;font-size:16px;line-height:1.45}
.form .btn:disabled{opacity:.7;cursor:default;transform:none;box-shadow:var(--pop-sm)}