/* AI Business Lab — landing page. Squared UI: radius 0 everywhere. */
@font-face{font-family:"Space Grotesk";src:url(../assets/fonts/space-grotesk-latin-wght-normal.woff2) format("woff2");font-weight:300 700;font-display:swap}
@font-face{font-family:"Inter";src:url(../assets/fonts/inter-latin-wght-normal.woff2) format("woff2");font-weight:100 900;font-display:swap}
@font-face{font-family:"IBM Plex Mono";src:url(../assets/fonts/ibm-plex-mono-latin-400-normal.woff2) format("woff2");font-weight:400;font-display:swap}
@font-face{font-family:"IBM Plex Mono";src:url(../assets/fonts/ibm-plex-mono-latin-500-normal.woff2) format("woff2");font-weight:500;font-display:swap}

:root{
  --abl-purple:#6A00AD;
  --header-h:72px;
  --pad-sec:clamp(72px,9vw,144px);
  --ease:cubic-bezier(.2,.7,.2,1);
}
*,*::before,*::after{box-sizing:border-box;border-radius:0}
html{scroll-behavior:smooth;scroll-padding-top:calc(var(--header-h) + 8px);-webkit-text-size-adjust:100%}
body{margin:0;background:var(--abl-white);color:var(--abl-ink);font:400 clamp(16px,1.25vw,18px)/1.6 var(--abl-font-body);-webkit-font-smoothing:antialiased;overflow-x:clip}
img,svg,canvas{display:block;max-width:100%}
h1,h2,h3,p,ol,dl,dd{margin:0;padding:0}
ol{list-style:none}
a{color:inherit}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.skip{position:absolute;left:-999px;top:8px;z-index:100;background:var(--abl-ink);color:#fff;padding:12px 16px}
.skip:focus{left:8px}
:focus-visible{outline:3px solid var(--abl-ink);outline-offset:3px}
.sec--reg :focus-visible,.stickybar :focus-visible,.site-header :focus-visible{outline-color:currentColor}
.sec--reg :focus-visible,.stickybar :focus-visible{outline-color:#fff}

.wrap{width:100%;max-width:var(--abl-width-max);margin-inline:auto;padding-inline:var(--abl-gutter)}
.grid{display:grid;grid-template-columns:repeat(12,minmax(0,1fr));column-gap:var(--abl-grid-gap)}
.d-only{display:inline}.m-only{display:none}

/* type */
h1,h2,h3{font-family:var(--abl-font-display);font-weight:700;letter-spacing:-.03em;text-wrap:balance}
h1{font-size:clamp(2.5rem,4.7vw,5rem);line-height:1}
h1 em,h2 em{font-style:normal;color:var(--abl-purple)}
h2{font-size:clamp(2rem,4vw,4.2rem);line-height:1.04}
h3{font-size:clamp(1.25rem,1.8vw,1.75rem);line-height:1.18;letter-spacing:-.02em}
.lead{font-size:clamp(1.05rem,1.45vw,1.3rem);line-height:1.55;color:var(--abl-text-secondary);max-width:34em}
.meta,.eyebrow,.idx,.facts dt,.tl__time,.reg__details dt{font-family:var(--abl-font-meta);text-transform:uppercase;letter-spacing:.1em;font-size:clamp(.72rem,.9vw,.8125rem);line-height:1.4}
.meta{color:var(--abl-text-secondary)}
.eyebrow{display:flex;align-items:center;gap:16px;margin-bottom:clamp(20px,2.4vw,32px);font-weight:500}
.eyebrow--line::after{content:"";width:clamp(40px,5vw,72px);height:2px;background:var(--abl-orange);flex:none}

/* buttons: rectangles only */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:12px;min-height:52px;padding:0 28px;background:var(--abl-orange-action);color:#fff;font:600 clamp(15px,1.2vw,17px)/1.2 var(--abl-font-body);text-decoration:none;border:2px solid var(--abl-orange-action);transition:background-color .2s,color .2s,border-color .2s}
.btn span[aria-hidden]{transition:transform .2s var(--ease)}
.btn:hover{background:var(--abl-ink);border-color:var(--abl-ink)}
.btn:hover span[aria-hidden]{transform:translateX(4px)}
.btn--sm{min-height:44px;padding:0 18px}
.btn--block{display:flex;width:100%}
.btn--on-dark{background:var(--abl-orange);border-color:var(--abl-orange);color:var(--abl-ink)}
.btn--on-dark:hover{background:#fff;border-color:#fff;color:var(--abl-ink)}
.link{display:inline-flex;align-items:center;gap:8px;min-height:44px;font-weight:600;text-decoration:underline;text-decoration-thickness:2px;text-underline-offset:6px;text-decoration-color:var(--abl-orange)}
.link:hover{text-decoration-color:var(--abl-ink)}

/* header */
.site-header{position:fixed;inset:0 0 auto 0;z-index:50;background:rgba(255,255,255,.96);border-bottom:1px solid transparent;transition:border-color .25s}
.site-header.is-scrolled{border-color:var(--abl-border)}
.site-header__in{height:var(--header-h);display:flex;align-items:center;gap:32px}
.brand{display:block;flex:none;line-height:0}
.brand img{height:40px;width:auto}
.nav{display:flex;gap:32px;margin-left:auto}
.nav a{font-weight:500;font-size:15px;text-decoration:none;padding:12px 0;background:linear-gradient(var(--abl-orange),var(--abl-orange)) 0 calc(100% - 8px)/0 2px no-repeat;transition:background-size .25s var(--ease)}
.nav a:hover{background-size:100% 2px}
.menu-btn{display:none;width:44px;height:44px;border:1px solid var(--abl-ink);background:#fff;cursor:pointer;padding:0;position:relative}
.menu-btn__bars,.menu-btn__bars::before{position:absolute;left:12px;right:12px;height:2px;background:var(--abl-ink);content:""}
.menu-btn__bars{top:21px}.menu-btn__bars::before{left:0;right:0;top:-7px;box-shadow:0 14px 0 var(--abl-ink)}
.menu-btn[aria-expanded=true] .menu-btn__bars{background:transparent}
.menu-btn[aria-expanded=true] .menu-btn__bars::before{top:0;box-shadow:none;transform:rotate(45deg)}
.menu-btn[aria-expanded=true] .menu-btn__bars::after{content:"";position:absolute;inset:0;background:var(--abl-ink);transform:rotate(-45deg)}
.menu-mobile{background:#fff;border-top:1px solid var(--abl-border);border-bottom:2px solid var(--abl-ink)}
.menu-mobile[hidden]{display:none}
.menu-mobile a{display:block;padding:18px var(--abl-gutter);font:600 1.25rem/1.2 var(--abl-font-display);text-decoration:none;border-bottom:1px solid var(--abl-border)}
.menu-mobile a:last-child{border-bottom:0}

/* hero */
.hero{position:relative;min-height:clamp(720px,100svh,920px);display:flex;align-items:center;padding:calc(var(--header-h) + 24px) 0 56px;overflow:hidden;isolation:isolate}
.hero__grid{position:relative;z-index:2}
.hero__copy{width:min(49%,660px)}
.hero__lead{margin-top:clamp(20px,2vw,28px);font-size:clamp(1.05rem,1.35vw,1.25rem);line-height:1.55;color:var(--abl-text-secondary);max-width:30em}
.hero__cta{display:flex;flex-wrap:wrap;align-items:center;gap:12px 32px;margin-top:clamp(24px,2.6vw,36px)}
.facts{display:flex;flex-wrap:nowrap;max-width:640px;gap:0;margin-top:clamp(28px,3vw,44px);border-top:1px solid var(--abl-ink)}
.facts>div{padding:14px 28px 4px 0;margin-right:28px;border-right:1px solid var(--abl-border)}
.facts>div:last-child{border-right:0;margin-right:0;min-width:0}
.facts>div:last-child dd{white-space:normal}
.facts dt{color:var(--abl-text-secondary);font-size:.72rem}
.facts dd{white-space:nowrap;font-weight:600;font-size:clamp(.95rem,1.15vw,1.0625rem);line-height:1.3;margin-top:4px}
.hero__price{margin-top:14px;font-family:var(--abl-font-meta);font-size:.8125rem;letter-spacing:.08em;text-transform:uppercase;color:var(--abl-text-secondary)}
.hero__price strong{color:var(--abl-ink);font-weight:500}

.hero__art{overflow:hidden;position:absolute;z-index:1;right:0;bottom:0;top:0;width:50%;pointer-events:none}
.hero__canvas{position:absolute;inset:0;width:100%;height:100%}
.hero__figure{position:absolute;right:0;bottom:0;width:min(88%,calc(100svh*.95));max-width:none;height:auto;mix-blend-mode:multiply}
.hero__beam{position:absolute;right:-3%;bottom:-4%;width:36%;height:40%;background:linear-gradient(90deg,var(--abl-purple) 0,var(--abl-purple) 45%,rgba(106,0,173,0) 100%) 0 0/220% 100%;clip-path:polygon(0 100%,15% 100%,100% 0,80% 0);animation:beam 14s ease-in-out infinite alternate}
@keyframes beam{from{background-position:0 0}to{background-position:-60% 0}}
.ret{position:absolute}
.ret--cross{left:4%;top:24%}
.ret--tl{left:12%;top:11%}
.ret--br{right:3%;bottom:4%}
.ret--dots{width:132px;height:110px;background:radial-gradient(circle,var(--abl-ink) 1.6px,transparent 2px) 0 0/22px 22px}
.ret--dots-a{right:3%;top:9%}
.ret--dots-b{left:20%;bottom:6%;width:110px;height:88px}

/* sections */
.sec{position:relative;padding-block:var(--pad-sec);overflow:hidden}
.sec>.wrap{position:relative;z-index:1}
.sec__head{row-gap:24px;margin-bottom:clamp(40px,6vw,88px);align-items:end}
.col-4{grid-column:span 4}.col-5{grid-column:span 5}.col-6{grid-column:span 6}.col-7{grid-column:span 7}.col-8{grid-column:span 8}.col-3{grid-column:span 3}.col-12{grid-column:1/-1}
.col-5.off-8,.col-4.off-9{grid-column-end:-1}
.col-5.off-8{grid-column-start:8}.col-4.off-9{grid-column-start:9}
.col-6.off-7{grid-column:7/-1}.col-7.off-6{grid-column:6/-1}.col-5.off-1{grid-column:2/span 5}
.col-3.off-8{grid-column:10/-1}
.col-5.off-8.reg__panel{grid-column:8/-1}
.idx{color:var(--abl-orange-action);font-weight:500}
.sec__halftone{position:absolute;z-index:0;pointer-events:none}

/* 03 learn */
.sec--learn{border-top:1px solid var(--abl-border)}
.learn{display:grid;grid-template-columns:repeat(2,1fr);border-top:2px solid var(--abl-ink)}
.learn li{padding:clamp(28px,3.4vw,52px) clamp(20px,3vw,48px) clamp(32px,4vw,64px) 0;border-bottom:1px solid var(--abl-border);transition:background-color .25s,color .25s,padding .25s var(--ease)}
.learn li:nth-child(odd){border-right:1px solid var(--abl-border)}
.learn li:nth-child(even){padding-left:clamp(20px,3vw,48px)}
.learn .idx{display:block;margin-bottom:clamp(40px,6vw,96px)}
.learn h3{font-size:clamp(1.5rem,2.4vw,2.25rem);margin-bottom:14px}
.learn p{max-width:26em;color:var(--abl-text-secondary)}
@media (hover:hover){
  .learn li:hover{background:var(--abl-ink);color:#fff;padding-left:clamp(20px,3vw,48px)}
  .learn li:hover p{color:#d4d4d4}.learn li:hover .idx{color:var(--abl-orange)}
}

/* 04 programme */
.sec--programme{background:var(--abl-surface-muted)}
.sec__halftone--prog{right:0;top:0;width:min(46vw,640px);height:min(46vw,640px);opacity:.95}
.tl{border-top:2px solid var(--abl-ink)}
.tl li{display:grid;grid-template-columns:3fr 5fr 4fr;column-gap:var(--abl-grid-gap);align-items:baseline;padding:clamp(20px,2.4vw,32px) 0;border-bottom:1px solid var(--abl-border);position:relative;background:linear-gradient(var(--abl-orange),var(--abl-orange)) 0 0/0 100% no-repeat}
.tl li::before{content:"";position:absolute;left:0;top:-1px;bottom:-1px;width:4px;background:var(--abl-orange);transform:scaleY(0);transform-origin:top;transition:transform .3s var(--ease)}
.tl li:hover::before{transform:scaleY(1)}
.tl__time{font-weight:500;color:var(--abl-ink);padding-left:0;transition:padding .3s var(--ease)}
.tl li:hover .tl__time{padding-left:16px}
.tl__title{display:flex;align-items:baseline;gap:20px}
.tl__title .idx{flex:none;font-size:.9rem}
.tl p{color:var(--abl-text-secondary);font-size:clamp(.95rem,1.1vw,1.0625rem);line-height:1.5}
.tl__break{border-bottom-style:dashed!important;color:var(--abl-text-secondary)}
.tl__break h3{font:500 .8125rem/1.4 var(--abl-font-meta);text-transform:uppercase;letter-spacing:.14em}
.tl__break .tl__time{color:var(--abl-text-secondary)}
.sec__cta{margin-top:clamp(36px,4.5vw,64px)}

/* 05 method */
.sec--method{border-bottom:1px solid var(--abl-border)}
.method__beam{position:absolute;left:-6%;bottom:-40px;width:38%;height:240px;background:linear-gradient(90deg,var(--abl-purple),rgba(106,0,173,.0));clip-path:polygon(0 100%,18% 100%,100% 0,82% 0);opacity:.95;pointer-events:none}
.method__intro .lead{margin-top:clamp(20px,2.4vw,32px)}
.steps{border-top:2px solid var(--abl-ink)}
.steps li{display:grid;grid-template-columns:clamp(64px,8vw,120px) 1fr;grid-template-rows:auto auto;column-gap:16px;padding:clamp(24px,2.6vw,36px) 0;border-bottom:1px solid var(--abl-border)}
.steps__n{grid-row:span 2;font:700 clamp(2.5rem,5vw,4.5rem)/.9 var(--abl-font-display);letter-spacing:-.04em;color:var(--abl-orange)}
.steps h3{font-size:clamp(1.5rem,2.4vw,2.25rem)}
.steps p{color:var(--abl-text-secondary);margin-top:6px}
.note{margin-top:clamp(28px,3vw,40px);padding:20px 24px;background:var(--abl-surface-muted);border-left:4px solid var(--abl-orange);font-weight:500}
.trainers{margin-top:clamp(28px,3vw,44px);padding-top:20px;border-top:1px solid var(--abl-ink)}
.trainers__names{font:700 clamp(1.5rem,2.6vw,2.25rem)/1.15 var(--abl-font-display);letter-spacing:-.025em;margin-top:6px}
.trainers__names span[aria-hidden]{color:var(--abl-orange);margin-inline:.1em}

/* 06 who */
.sec--who{row-gap:0}
.sec--who .grid{row-gap:clamp(32px,4vw,64px)}
.sec--who h2{font-size:clamp(2rem,4.6vw,4.75rem);line-height:1.03}
.sec__halftone--who{right:0;bottom:0;width:min(52vw,720px);height:min(52vw,720px)}
.who__text{font-size:clamp(1.05rem,1.5vw,1.35rem);line-height:1.55}
.who__close{margin-top:1.1em;font-weight:600}

/* 07 registration */
.sec--reg{background:var(--abl-inverse);color:#fff}
.sec--reg h2{font-size:clamp(2.1rem,4.2vw,4.4rem)}
.sec--reg .eyebrow{color:#fff}
.sec--reg .lead{color:#c9c9c9;margin-top:clamp(20px,2.4vw,32px)}
.sec__halftone--reg{left:0;bottom:0;width:min(44vw,620px);height:min(44vw,620px)}
.reg__panel{background:#fff;color:var(--abl-ink);padding:clamp(24px,3vw,44px);border-top:6px solid var(--abl-orange);align-self:start}
.reg__price{font:700 clamp(3.4rem,6.4vw,6rem)/1 var(--abl-font-display);letter-spacing:-.04em;margin:8px 0 clamp(20px,2.4vw,32px)}
.reg__price span{font-size:.36em;letter-spacing:0;margin-left:.15em}
.reg__details{margin-bottom:clamp(24px,2.6vw,36px);border-top:1px solid var(--abl-ink)}
.reg__details>div{display:grid;grid-template-columns:7.5em 1fr;gap:16px;padding:14px 0;border-bottom:1px solid var(--abl-border)}
.reg__details dt{color:var(--abl-text-secondary)}
.reg__details dd{font-weight:600;line-height:1.35}
.reg__note{margin-top:16px;font-size:.9rem;color:var(--abl-text-secondary)}
.sec--reg .btn--on-dark:hover{background:var(--abl-ink);border-color:var(--abl-ink);color:#fff}

/* 08 faq */
.faq{border-top:2px solid var(--abl-ink)}
.faq details{border-bottom:1px solid var(--abl-border)}
.faq summary{display:flex;justify-content:space-between;align-items:center;gap:24px;min-height:44px;padding:24px 0;cursor:pointer;list-style:none;font:600 clamp(1.1rem,1.7vw,1.5rem)/1.25 var(--abl-font-display);letter-spacing:-.015em}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"";flex:none;width:28px;height:28px;border:2px solid var(--abl-ink);background:linear-gradient(var(--abl-ink),var(--abl-ink)) center/12px 2px no-repeat,linear-gradient(var(--abl-ink),var(--abl-ink)) center/2px 12px no-repeat;transition:background-color .2s}
.faq details[open] summary::after{background:linear-gradient(#fff,#fff) center/12px 2px no-repeat;background-color:var(--abl-orange-action);border-color:var(--abl-orange-action)}
.faq summary:hover{color:var(--abl-orange-action)}
.faq details p{padding:0 56px 28px 0;color:var(--abl-text-secondary);max-width:42em}

/* footer */
.site-footer{padding:clamp(56px,6vw,96px) 0 clamp(96px,9vw,120px);border-top:2px solid var(--abl-ink)}
.site-footer .grid{row-gap:48px}
.site-footer__logo{height:40px;width:auto;margin-bottom:24px}
.site-footer__tag{max-width:26em;margin-bottom:20px;font-weight:500}
.site-footer__links{display:flex;flex-direction:column;align-items:flex-start;gap:4px}
.site-footer__links a{display:inline-flex;align-items:center;min-height:44px;font-weight:600;text-decoration:underline;text-decoration-color:var(--abl-orange);text-decoration-thickness:2px;text-underline-offset:6px}
.site-footer__legal{padding-top:24px;border-top:1px solid var(--abl-border)}

/* sticky bar */
.stickybar{position:fixed;z-index:60;left:0;right:0;bottom:0;background:var(--abl-ink);color:#fff;padding-bottom:env(safe-area-inset-bottom);transform:translateY(0);transition:transform .35s var(--ease)}
.stickybar[hidden]{display:block;transform:translateY(110%);visibility:hidden}
.stickybar__in{display:flex;align-items:center;justify-content:space-between;gap:16px;padding-block:10px}
.stickybar p{font:500 .8125rem/1.3 var(--abl-font-meta);text-transform:uppercase;letter-spacing:.08em}

/* reveal */
.js [data-reveal]{opacity:0;transform:translateY(18px);transition:opacity var(--abl-motion-reveal) var(--ease),transform var(--abl-motion-reveal) var(--ease);transition-delay:var(--d,0ms)}
.js [data-reveal].is-in{opacity:1;transform:none}

/* tablet */
@media (max-width:1100px){
  .nav{gap:20px}
  .hero__copy{width:min(54%,600px)}
  .hero__art{width:54%}
  .col-5.off-8,.col-5.off-8.reg__panel{grid-column:6/-1}
}
/* mobile / narrow */
@media (max-width:860px){
  :root{--header-h:64px}
  .nav{display:none}
  .site-header__in{gap:12px}
  .site-header .btn{margin-left:auto}
  .menu-btn{display:block}
  .brand img{height:30px}
  .d-only{display:none}.m-only{display:inline}
  .hero{display:block;min-height:0;padding:calc(var(--header-h) + 28px) 0 0}
  .hero__copy{width:100%}
  .hero__art{position:relative;width:100%;height:clamp(340px,92vw,520px);margin-top:32px}
  .hero__figure{width:min(100%,600px);right:-2%}
  .ret--cross{left:2%;top:18%;width:78px;height:78px}
  .ret--tl{left:4%;top:4%}.ret--dots-a{right:4%;top:4%;width:88px;height:66px}.ret--dots-b{display:none}
  .hero__beam{width:46%;height:46%;right:-8%}
  .facts{flex-direction:column;max-width:none}
  .facts>div{margin:0;padding:12px 0;border-right:0;border-bottom:1px solid var(--abl-border);display:grid;grid-template-columns:5.5em 1fr;gap:12px;align-items:baseline}
  .facts dd{margin:0;white-space:normal}
  .grid{display:block}
  .grid>*+*{margin-top:28px}
  .sec__head{display:block}
  .learn{grid-template-columns:1fr}
  .learn li,.learn li:nth-child(even){padding:28px 0 32px;border-right:0}
  .learn li:nth-child(odd){border-right:0}
  .learn .idx{margin-bottom:28px}
  .tl li{display:block}
  .tl__time{display:block;margin-bottom:10px}
  .tl__title{margin-bottom:8px}
  .tl li:hover .tl__time{padding-left:0}
  .method__beam{width:70%;height:140px;left:-10%}
  .who__text{margin-top:28px}
  .sec__halftone--who,.sec__halftone--prog{width:300px;height:300px;opacity:.9}
  .sec__halftone--reg{width:300px;height:300px}
  .reg__details>div{grid-template-columns:6em 1fr}
  .faq details p{padding-right:0}
  .site-footer__links{margin-top:32px}
  .site-footer__legal{margin-top:40px}
}
@media (max-width:420px){
  .btn{padding:0 20px}
  .hero__cta{gap:4px 24px}
  .site-header .btn{padding:0 12px;font-size:14px}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .hero__beam{animation:none}
  .js [data-reveal]{opacity:1;transform:none;transition:none}
  *{transition-duration:.01ms!important}
}