/* break the mould. — site styles v1 (tokens from brand kit) */
:root{
  --ink:#17171C; --violet:#8B7CF6; --violet-deep:#6D5BE8;
  --lavender:#EDEAFD; --grey:#6B7280; --mist:#F6F6F8; --white:#FFFFFF;
}
*{margin:0;padding:0;box-sizing:border-box}
body{font-family:'Inter',sans-serif;color:var(--ink);background:var(--white);line-height:1.6}
h1,h2,h3,h4,.logo{font-family:'Poppins',sans-serif}
.dot{color:var(--violet)}
a{color:var(--violet-deep);text-decoration:none}
img{max-width:100%}

/* nav */
nav{display:flex;align-items:center;justify-content:space-between;padding:18px 5vw;border-bottom:1px solid #ECECF0;position:sticky;top:0;background:rgba(255,255,255,.95);backdrop-filter:blur(6px);z-index:50}
.logo{font-weight:700;font-size:20px;line-height:1;color:var(--ink);letter-spacing:-.5px}
.navlinks{display:flex;gap:26px;align-items:center;flex-wrap:wrap}
.navlinks a{color:var(--ink);font-size:15px;font-weight:500}
.navlinks a.active{color:var(--violet-deep);font-weight:600}
.btn{display:inline-block;background:var(--ink);color:#fff;font-family:'Poppins',sans-serif;font-weight:600;font-size:15px;padding:10px 24px;border-radius:99px;border:none;cursor:pointer}
.btn:hover{background:var(--violet-deep)}
.btn.violet{background:var(--violet-deep)}
.btn.ghost{background:transparent;color:var(--ink);border:2px solid var(--ink)}

/* layout */
section{padding:64px 5vw;max-width:1100px;margin:0 auto}
section.full{max-width:none;background:var(--mist)}
section.full>.inner{max-width:1100px;margin:0 auto}
.hero{padding:96px 5vw 72px;max-width:1100px;margin:0 auto}
.hero h1{font-size:clamp(40px,7vw,72px);font-weight:800;letter-spacing:-2px;line-height:1.02}
.hero p.lead{font-size:clamp(17px,2.2vw,21px);color:var(--grey);margin:20px 0 32px;max-width:56ch}
.kicker{display:inline-block;background:var(--lavender);color:var(--violet-deep);font-weight:600;font-size:13px;padding:3px 14px;border-radius:99px;margin-bottom:18px;font-family:'Poppins',sans-serif}
h2{font-size:clamp(26px,3.5vw,36px);font-weight:700;letter-spacing:-.5px;margin-bottom:10px}
h3{font-size:19px;font-weight:600;margin-bottom:6px}
.sub{color:var(--grey);max-width:64ch}

/* cards */
.grid{display:grid;gap:18px;margin-top:32px}
.grid.c3{grid-template-columns:repeat(3,1fr)}
.grid.c2{grid-template-columns:repeat(2,1fr)}
.card{border:1px solid #E5E5EA;border-radius:12px;padding:28px;background:#fff}
.card .emoji{font-size:30px;margin-bottom:10px}
.card p{font-size:14.5px;color:var(--grey)}
.card .meta{display:flex;gap:18px;margin-top:14px;font-size:13px;color:var(--ink);font-weight:600}
.card .meta span b{color:var(--grey);font-weight:500;display:block;font-size:12px}
.card.dark{background:var(--ink);border-color:var(--ink)}
.card.dark h3{color:#fff}
.card.dark p{color:#B8B8C2}
.card.lav{background:var(--lavender);border-color:var(--lavender)}

/* case studies */
.case{border:1px solid #E5E5EA;border-radius:12px;padding:32px;margin-top:20px;background:#fff}
.case .tagline{font-size:13px;font-weight:600;color:var(--violet-deep);font-family:'Poppins',sans-serif}
.case blockquote{border-left:3px solid var(--violet);padding:6px 0 6px 18px;margin:16px 0 8px;font-size:15px;color:var(--ink)}
.case cite{font-style:normal;font-size:13.5px;color:var(--grey)}

/* faq */
details{border-bottom:1px solid #ECECF0;padding:16px 0}
details summary{font-family:'Poppins',sans-serif;font-weight:600;font-size:16px;cursor:pointer;list-style:none;display:flex;justify-content:space-between}
details summary::after{content:"+";color:var(--violet);font-weight:700}
details[open] summary::after{content:"–"}
details p{padding-top:10px;color:var(--grey);font-size:15px;max-width:70ch}

/* footer */
footer{background:var(--ink);color:#B8B8C2;padding:56px 5vw;margin-top:64px}
footer .inner{max-width:1100px;margin:0 auto;display:flex;justify-content:space-between;gap:32px;flex-wrap:wrap}
footer .logo{color:#fff;font-size:24px}
footer a{color:#DDDDE4}
footer .cols{display:flex;gap:56px;flex-wrap:wrap;font-size:14px}
footer .cols b{display:block;color:#fff;margin-bottom:8px;font-family:'Poppins',sans-serif}
footer .endorse{font-size:13px;margin-top:14px}
footer .legal{max-width:1100px;margin:32px auto 0;font-size:12.5px;border-top:1px solid #2A2A31;padding-top:18px}

/* presenter profile */
.profile-hero{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center}
.showreel{background:var(--ink);border-radius:12px;aspect-ratio:16/9;display:flex;align-items:center;justify-content:center;color:#fff;font-family:'Poppins',sans-serif;font-weight:600}
.carousel{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:12px;margin-top:16px}
.carousel .ph{background:var(--mist);border:1px dashed #D5D5DC;border-radius:10px;aspect-ratio:3/4;display:flex;align-items:center;justify-content:center;color:var(--grey);font-size:12px}
.exp-table{width:100%;border-collapse:collapse;margin-top:12px;font-size:14.5px}
.exp-table td{border-bottom:1px solid #ECECF0;padding:10px 8px}
.exp-table td:first-child{font-weight:600;white-space:nowrap;color:var(--violet-deep)}

/* forms */
.formgrid{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:20px}
.formgrid .wide{grid-column:1/-1}
label{font-size:13.5px;font-weight:600;display:block;margin-bottom:4px}
input,select,textarea{width:100%;padding:11px 14px;border:1px solid #D5D5DC;border-radius:10px;font-family:'Inter',sans-serif;font-size:15px;background:#fff}
textarea{min-height:110px}
@media(max-width:720px){.profile-hero{grid-template-columns:1fr}.navlinks{gap:14px}.formgrid{grid-template-columns:1fr}}

/* v2 — Rob's feedback 16-17 July */
.btn.violet:hover{background:var(--ink)}
.btn.ghost:hover{background:var(--ink);color:#fff}
.navlinks a:hover{color:var(--violet-deep)}
.etp{font-family:'Poppins',sans-serif;font-weight:600;font-size:clamp(15px,2vw,19px);color:var(--violet-deep);margin-top:14px;letter-spacing:.3px}
.logobar{display:flex;gap:72px;align-items:center;flex-wrap:wrap;margin-top:22px}
.logobar img{height:76px;width:auto;filter:grayscale(1) opacity(.65)}

/* v3 — nav button text fix + photography treatment */
.navlinks a.btn{color:#fff}
.photo{border-radius:12px;overflow:hidden;background:var(--mist)}
.photo img{width:100%;height:100%;object-fit:cover;display:block;filter:saturate(.85) contrast(1.05)}
.case.split{display:grid;grid-template-columns:1.6fr 1fr;gap:28px;align-items:center}
.case.split .photo{aspect-ratio:4/3}
@media(max-width:760px){.case.split{grid-template-columns:1fr}}
.card.act{position:relative;overflow:hidden}
.card.act .bg{position:absolute;inset:0;background-size:cover;background-position:center;opacity:0;transition:opacity .35s ease}
.card.act .bg::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(23,23,28,.35),rgba(23,23,28,.88))}
.card.act:hover .bg{opacity:1}
.card.act>*:not(.bg){position:relative}
.card.act:hover h3{color:#fff}
.card.act:hover p{color:#E4E4EA}
.card.act:hover .meta{color:#fff}
.card.act:hover .meta span b{color:#C9C9D4}

/* v5 — homepage hero collage */
.hero.split{display:grid;grid-template-columns:1.15fr 1fr;gap:48px;align-items:center}
.collage{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.collage .photo:nth-child(1){grid-row:span 2}
.collage .photo{min-height:150px}
.collage .photo img{aspect-ratio:auto;height:100%}
@media(max-width:860px){.hero.split{grid-template-columns:1fr}.collage{margin-top:8px}}

/* v6 — Rob's feedback 17 July: section rhythm, dark band, roster grid, experience scroller */
section.full.dark{background:var(--ink)}
section.full.dark h2{color:#fff}
section.full.dark .sub{color:#B8B8C2}
.flexcard{display:flex;flex-direction:column}
.flexcard .cta{margin-top:auto;padding-top:14px}
.logobar.center{justify-content:center}
.grid.c5{grid-template-columns:repeat(5,1fr)}
@media(max-width:1000px){.grid.c5{grid-template-columns:repeat(3,1fr)}}
@media(max-width:640px){.grid.c5{grid-template-columns:repeat(2,1fr)}}
.exp-scroll{display:flex;gap:14px;overflow-x:auto;padding-bottom:10px;scroll-snap-type:x mandatory;-webkit-overflow-scrolling:touch}
.exp-scroll .exp-item{min-width:230px;scroll-snap-align:start;border:1px solid #E5E5EA;border-radius:12px;padding:18px;background:#fff}
.exp-item b{font-family:'Poppins',sans-serif;color:var(--violet-deep);display:block;margin-bottom:4px}
.exp-item span{font-size:14px;color:var(--grey)}

/* v7 — fixed column counts (Rob: 3 per row / 2 per row), responsive collapse */
@media(max-width:900px){.grid.c3{grid-template-columns:repeat(2,1fr)}}
@media(max-width:600px){.grid.c3{grid-template-columns:1fr}}
@media(max-width:700px){.grid.c2{grid-template-columns:1fr}}

/* v10 — Rob 18 July: colour-on-hover logos, interactive feel, photo tags */
.logobar img{transition:filter .3s ease}
.logobar img:hover{filter:grayscale(0) opacity(1)}
.card{transition:transform .25s ease,box-shadow .25s ease}
.card:hover{transform:translateY(-4px);box-shadow:0 12px 28px rgba(23,23,28,.09)}
.photo{position:relative}
.photo img{transition:transform .5s ease}
.photo:hover img{transform:scale(1.045)}
.photo .tag{position:absolute;top:10px;left:10px;background:rgba(23,23,28,.75);color:#fff;font-family:'Poppins',sans-serif;font-weight:600;font-size:11px;letter-spacing:.8px;text-transform:uppercase;padding:4px 10px;border-radius:99px;z-index:1}

/* v11 — Spark2-events-style staggered hero collage (Paul 19 July) */
.collage2{position:relative;min-height:560px}
.collage2 .photo{position:absolute;border-radius:14px;box-shadow:0 18px 44px rgba(23,23,28,.16)}
.collage2 .photo img{height:100%;aspect-ratio:auto}
.collage2 .p1{top:0;left:6%;width:82%;aspect-ratio:4/3;transform:rotate(-1.5deg);z-index:1}
.collage2 .p2{top:46%;left:0;width:44%;aspect-ratio:4/3;transform:rotate(2deg);z-index:2}
.collage2 .p3{top:52%;right:0;width:56%;aspect-ratio:4/3;transform:rotate(-1deg);z-index:3}
.collage2 .photo:hover{z-index:5}
.collage2 .tag{top:auto;bottom:14px;left:14px;background:var(--ink);font-size:12px;padding:6px 14px}
.badge{position:absolute;top:-18px;right:-4px;width:104px;height:104px;border-radius:50%;background:var(--violet);color:#fff;display:flex;align-items:center;justify-content:center;text-align:center;font-family:'Poppins',sans-serif;font-weight:700;font-size:14px;line-height:1.2;transform:rotate(12deg);z-index:4;box-shadow:0 10px 24px rgba(109,91,232,.35);padding:10px}
@media(max-width:860px){
  .collage2{min-height:0}
  .collage2 .photo{position:relative;width:100%;transform:none;margin-bottom:14px;aspect-ratio:16/10}
  .collage2 .p1,.collage2 .p2,.collage2 .p3{top:auto;left:auto;right:auto;bottom:auto}
  .badge{display:none}
}

/* v13 — bigger logos, pillar-matched collage, hero images on training + presenters */
.heroimg{aspect-ratio:4/3;box-shadow:0 18px 44px rgba(23,23,28,.14);border-radius:14px;transform:rotate(-1deg)}
.heroimg .tag{top:auto;bottom:14px;left:14px;background:var(--ink);font-size:12px;padding:6px 14px}
@media(max-width:860px){.heroimg{transform:none;margin-top:8px}}

/* v14 — mobile logo sizing */
@media(max-width:640px){.logobar{gap:36px}.logobar img{height:52px}}
@media(max-width:520px){.logobar.center{display:grid;grid-template-columns:repeat(2,1fr);justify-items:center;align-items:center;gap:28px 20px}}

/* v17 — mobile optimisation pass (21 July): hamburger nav, touch targets, layout tightening */
.navtoggle{display:none;background:none;border:none;cursor:pointer;padding:8px;flex-direction:column;gap:5px;z-index:60}
.navtoggle span{display:block;width:24px;height:2px;background:var(--ink);border-radius:2px;transition:transform .25s ease,opacity .25s ease}
.navtoggle.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.navtoggle.open span:nth-child(2){opacity:0}
.navtoggle.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

@media(max-width:680px){
  nav{padding:14px 5vw;flex-wrap:wrap}
  .navtoggle{display:flex}
  .navlinks{width:100%;order:3;flex-direction:column;align-items:stretch;gap:0;max-height:0;overflow:hidden;opacity:0;transition:max-height .3s ease,opacity .25s ease;margin-top:0}
  .navlinks.open{max-height:400px;opacity:1;margin-top:14px}
  .navlinks a{padding:14px 2px;border-bottom:1px solid #F1F1F4;font-size:16px}
  .navlinks a.btn{margin-top:10px;text-align:center;border-bottom:none}
}

/* mobile spacing + touch targets */
@media(max-width:600px){
  .hero{padding:56px 5vw 48px}
  section{padding:44px 5vw}
  .btn{padding:13px 24px;font-size:15.5px}
  .hero .btn{display:block;width:100%;text-align:center;margin-left:0 !important}
  .hero .btn + .btn{margin-top:10px}
  footer .inner{gap:28px}
  footer .cols{gap:32px 40px}
}

/* exp-table horizontal safety on narrow screens */
.exp-table{display:block;overflow-x:auto;-webkit-overflow-scrolling:touch}