/* Look of the site: colours, fonts, spacing, animations. */
:root{
  --ink:#000000; --graphite:#161616; --ash:#2b2b2b; --smoke:#8e8e8b; --fog:#cfcfcb; --paper:#f2f2f0; --white:#ffffff; --blue:#4a7be0; --denim:#1d335f; --polaroid:#f7f6f2; --tape:rgba(226,206,168,.86); --corkbase:#c4925a;
  --display:"Helvetica Neue", Helvetica, Arial, sans-serif;
  --serif:"Helvetica Neue", Helvetica, Arial, sans-serif;
  --ease:cubic-bezier(.7,0,.2,1); --out:cubic-bezier(.16,1,.3,1);
}
*{box-sizing:border-box;margin:0;padding:0}
html{background:var(--ink)}
html.locked{overflow:hidden}
body{background:var(--ink);color:var(--paper);font-family:var(--display);font-size:16px;line-height:1.5;-webkit-font-smoothing:antialiased;overflow-x:hidden}
button{font:inherit;color:inherit;background:none;border:0}
:focus-visible{outline:2px solid var(--white);outline-offset:4px}
.room :focus-visible{outline-color:var(--ink)}
::selection{background:var(--white);color:var(--ink)}

/* ---------- cute cursor (native, no lag) ---------- */
html,body{cursor:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24'%3E%3Ccircle cx='12' cy='12' r='5.5' fill='%23fff' stroke='%23000' stroke-width='1.6'/%3E%3C/svg%3E") 12 12,auto}
a,button,[data-cursor],.l-head{cursor:pointer}
button:disabled,.panel.soon{cursor:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24'%3E%3Ccircle cx='12' cy='12' r='5.5' fill='%23fff' stroke='%23000' stroke-width='1.6'/%3E%3C/svg%3E") 12 12,not-allowed}

/* ---------- intro ---------- */
.intro{position:relative;overflow:hidden;isolation:isolate;background:radial-gradient(70% 60% at 62% 55%,#191919 0%,#080808 55%,#000 85%);min-height:100svh;display:grid;grid-template-rows:auto 1fr auto;padding:28px clamp(18px,4vw,56px) 40px}
#hero3d{position:absolute;inset:0;width:100%;height:100%;z-index:0;pointer-events:none}
.intro>:not(#hero3d){position:relative;z-index:1}
.topline{display:flex;justify-content:space-between;gap:20px;font-size:14px;color:var(--smoke)}
.topline b{color:var(--paper);font-weight:500}
h1{align-self:center;text-shadow:0 0 28px rgba(0,0,0,.85),0 0 60px rgba(0,0,0,.6);font-weight:700;font-variation-settings:"wdth" 75,"opsz" 96;font-size:clamp(46px,11.5vw,200px);line-height:.86;letter-spacing:-.035em;padding:6vh 0}
.line{display:block;overflow:hidden;padding-bottom:.04em;white-space:nowrap}
.line>span{display:block;transform:translateY(105%);animation:rise 1.3s var(--out) forwards;animation-delay:calc(var(--i)*.13s + .15s)}
.line:nth-child(2)>span{padding-left:12vw;color:var(--smoke)}
.line:nth-child(3)>span,.line:nth-child(4)>span{padding-left:4vw}
@keyframes rise{to{transform:none}}
.intro-foot{display:grid;grid-template-columns:minmax(0,520px) auto;justify-content:space-between;align-items:end;gap:24px;opacity:0;animation:fade 1s ease 1.1s forwards}
.intro-foot p{text-shadow:0 0 18px #000,0 0 36px #000;font-family:var(--serif);font-size:clamp(19px,1.7vw,23px);line-height:1.45;color:var(--fog);font-weight:300}
.hint{display:flex;align-items:center;gap:14px;font-size:14px;color:var(--smoke);white-space:nowrap}
.hint i{display:block;width:1px;height:48px;background:var(--ash);position:relative;overflow:hidden}
.hint i::after{content:"";position:absolute;left:0;top:-50%;width:1px;height:50%;background:var(--white);animation:drip 2s var(--ease) infinite}
@keyframes drip{to{top:100%}}
@keyframes fade{to{opacity:1}}

/* ---------- horizontal track ---------- */
.track-wrap{position:relative}
.pin{position:sticky;top:0;height:100svh;overflow:hidden;display:grid;grid-template-rows:auto 1fr;grid-template-columns:minmax(0,1fr)}
.pin-head{display:flex;justify-content:space-between;align-items:center;padding:28px clamp(18px,4vw,56px) 0;font-size:14px;color:var(--smoke)}
.counter{display:flex;align-items:center;gap:16px;font-variant-numeric:tabular-nums}
.counter b{color:var(--paper);font-weight:500}
.bar{width:clamp(80px,14vw,200px);height:1px;background:var(--ash);position:relative}
.bar i{position:absolute;inset:0 auto 0 0;width:0;background:var(--white)}
.track{display:flex;align-items:center;gap:clamp(16px,2vw,28px);padding:0 clamp(18px,4vw,56px);will-change:transform}
.lead{flex:0 0 clamp(260px,26vw,380px);padding-right:2vw}
.lead h2{font-weight:600;font-variation-settings:"wdth" 75;font-size:clamp(40px,4.6vw,72px);line-height:.95;letter-spacing:-.025em;margin-bottom:22px}
.lead p{font-family:var(--serif);font-size:19px;line-height:1.5;color:var(--smoke);font-weight:300;max-width:30ch}

.panel{flex:0 0 clamp(280px,30vw,440px);height:min(72svh,640px);background:var(--graphite);display:grid;grid-template-rows:auto 1fr auto;text-align:left;position:relative;
  transition:transform .7s var(--out),background .5s}
.panel:hover{transform:translateY(-10px);background:#1d1d1d}
.panel.soon{opacity:.45}
.panel.soon:hover{transform:none;background:var(--graphite)}
.panel-meta{display:flex;justify-content:space-between;padding:18px 20px 0;font-size:13px;color:var(--smoke);font-variant-numeric:tabular-nums}
.panel-meta b{font-weight:500;color:var(--paper)}
.panel canvas{width:100%;height:100%;display:block;min-height:0}
.panel-text{padding:0 20px 22px}
.panel-text h3{font-weight:600;font-variation-settings:"wdth" 80;font-size:clamp(26px,2.3vw,36px);line-height:1;letter-spacing:-.02em;margin-bottom:8px}
.panel-text p{font-family:var(--serif);font-size:18px;color:var(--smoke);line-height:1.35}
.tail{flex:0 0 clamp(200px,18vw,280px);font-family:var(--serif);font-size:22px;color:var(--smoke);line-height:1.35}

footer{display:flex;justify-content:space-between;gap:20px;padding:28px clamp(18px,4vw,56px) 36px;border-top:1px solid var(--ash);font-size:14px;color:var(--smoke)}

/* ---------- session room ---------- */
.room{position:fixed;inset:0;z-index:100;background:var(--white);color:var(--ink);overflow-y:auto;overscroll-behavior:contain;
  clip-path:circle(0px at var(--x,50%) var(--y,50%));visibility:hidden;transition:clip-path 1s var(--ease),visibility 0s 1s}
.room.open{clip-path:circle(150vmax at var(--x,50%) var(--y,50%));visibility:visible;transition:clip-path 1.1s var(--ease),visibility 0s}
.room-bar{position:sticky;top:0;z-index:5;display:grid;grid-template-columns:1fr auto 1fr;align-items:center;padding:18px clamp(18px,4vw,56px);
  background:rgba(255,255,255,.97);font-size:14px}
.room-bar .where{color:var(--smoke);font-variant-numeric:tabular-nums}
.close{justify-self:start;display:flex;align-items:center;gap:10px;font-weight:500}
.close i{width:34px;height:34px;border:1px solid var(--ink);border-radius:50%;display:grid;place-items:center;font-style:normal;transition:background .3s,color .3s}
.close:hover i{background:var(--ink);color:var(--paper)}
.steps{justify-self:end;display:flex;gap:8px}
.steps button{width:34px;height:34px;border:1px solid var(--fog);border-radius:50%;transition:border-color .3s,background .3s,color .3s}
.steps button:hover:not(:disabled){background:var(--ink);color:var(--paper);border-color:var(--ink)}
.steps button:disabled{opacity:.3}

.room-body{transition:opacity .45s ease,transform .6s var(--out)}
.room-body.swap{opacity:0;transform:translateY(30px)}

.r-hero{display:grid;grid-template-columns:1.1fr .9fr;gap:clamp(24px,4vw,72px);padding:clamp(32px,6vw,90px) clamp(18px,4vw,56px) clamp(48px,7vw,110px);align-items:end}
.r-num{font-weight:800;font-variation-settings:"wdth" 75,"opsz" 96;font-size:clamp(120px,22vw,340px);line-height:.78;letter-spacing:-.05em;margin-bottom:clamp(24px,3vw,44px)}
.r-hero h2{font-weight:600;font-variation-settings:"wdth" 85;font-size:clamp(34px,4.4vw,68px);line-height:1;letter-spacing:-.025em;margin-bottom:22px;max-width:16ch}
.def{font-size:clamp(18px,1.5vw,21px);line-height:1.5;color:#3a3a3a;max-width:50ch;margin-bottom:30px}
.who{display:grid;grid-template-columns:repeat(3,auto);justify-content:start;gap:6px 36px;font-size:15px}
.who dt{color:var(--smoke);font-size:13px}
.who dd{font-weight:500}
.r-art{aspect-ratio:1;width:100%;background:var(--white)}
.r-art canvas{width:100%;height:100%;display:block}

.r-section{padding:clamp(56px,8vw,120px) clamp(18px,4vw,56px)}
.r-title{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.6fr);gap:clamp(24px,4vw,72px);margin-bottom:clamp(36px,5vw,64px);align-items:end}
.r-title h3{font-weight:700;font-variation-settings:"wdth" 75;font-size:clamp(44px,6.5vw,104px);line-height:.88;letter-spacing:-.035em}
.r-title p{font-family:var(--serif);font-size:20px;line-height:1.5;color:#55554f;max-width:46ch;font-weight:300}

.learn{list-style:none;border-top:1px solid var(--ink)}
.learn li{border-bottom:1px solid var(--fog)}
.l-head{width:100%;display:grid;grid-template-columns:minmax(0,1fr) auto;gap:24px;align-items:center;padding:clamp(20px,2.4vw,30px) 14px;text-align:left;
  background:linear-gradient(var(--ink),var(--ink)) no-repeat left/0% 100%;transition:background-size .6s var(--ease),color .35s}
.l-head:hover,.learn li.open .l-head{background-size:100% 100%;color:var(--paper)}
.l-head span{font-weight:500;font-variation-settings:"wdth" 90;font-size:clamp(22px,2.6vw,38px);line-height:1.1;letter-spacing:-.015em}
.l-icon{width:40px;height:40px;position:relative;flex:none}
.l-icon::before,.l-icon::after{content:"";position:absolute;left:50%;top:50%;width:18px;height:1.5px;background:currentColor;transform:translate(-50%,-50%);transition:transform .5s var(--ease)}
.l-icon::after{transform:translate(-50%,-50%) rotate(90deg)}
.learn li.open .l-icon::after{transform:translate(-50%,-50%) rotate(0)}
.l-body{display:grid;grid-template-rows:0fr;transition:grid-template-rows .7s var(--ease)}
.learn li.open .l-body{grid-template-rows:1fr}
.l-body>div{overflow:hidden}
.l-body p{font-family:var(--serif);font-size:clamp(19px,1.6vw,22px);line-height:1.55;font-weight:300;max-width:68ch;padding:26px 14px 36px}

.reflect{background:var(--ink);color:var(--paper)}
.reflect .r-title p{color:var(--smoke)}
.lit{font-family:var(--serif);font-weight:400;font-size:clamp(30px,4.2vw,64px);line-height:1.18;letter-spacing:-.01em;max-width:24ch;margin:0 0 clamp(56px,8vw,110px) auto}
.lit span{color:#3a3a3a;transition:color .5s}
.lit span.on{color:var(--paper)}
.notes{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:clamp(24px,3vw,48px);border-top:1px solid var(--ash);padding-top:36px}
.notes h4{font-weight:500;font-size:15px;color:var(--smoke);margin-bottom:14px}
.notes p{font-family:var(--serif);font-size:19px;line-height:1.55;font-weight:300;color:var(--fog);max-width:40ch}

.next{display:block;width:100%;text-align:left;padding:clamp(48px,7vw,100px) clamp(18px,4vw,56px);position:relative;overflow:hidden;background:var(--white);color:var(--ink);isolation:isolate}
.next::before{content:"";position:absolute;inset:0;background:var(--ink);transform:translateY(101%);transition:transform .8s var(--ease);z-index:-1}
.next:hover::before{transform:none}
.next:hover{color:var(--paper)}
.next small{display:block;font-size:15px;margin-bottom:14px;color:var(--smoke)}
.next strong{display:block;font-weight:700;font-variation-settings:"wdth" 75;font-size:clamp(48px,9vw,150px);line-height:.88;letter-spacing:-.04em;transition:transform .8s var(--out)}
.next:hover strong{transform:translateX(2vw)}

/* ---------- quiz ---------- */
.quiz-list{list-style:none;border-top:1px solid var(--ink)}
.quiz-list li{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.6fr);gap:16px clamp(24px,4vw,72px);padding:clamp(22px,2.6vw,34px) 14px;border-bottom:1px solid var(--fog)}
.q-text{font-size:clamp(20px,2vw,28px);font-weight:500;letter-spacing:-.01em;line-height:1.2;text-wrap:balance}
.q-opts{display:flex;flex-wrap:wrap;gap:10px;align-content:start}
.q-opts button{border:1px solid var(--ink);border-radius:999px;padding:11px 20px;font-size:16px;line-height:1.2;transition:background .3s,color .3s,opacity .3s}
.q-opts button:hover:not(:disabled){background:var(--ink);color:var(--white)}
.q-opts button.right{background:var(--ink);color:var(--white);opacity:1}
.q-opts button.wrong{opacity:.3;text-decoration:line-through}
.q-opts button:disabled{}
.q-why{grid-column:2;font-size:17px;line-height:1.5;color:#55554f;max-width:60ch}
.score{display:block;margin-top:14px;font-size:15px;color:var(--ink);font-weight:500;font-variant-numeric:tabular-nums}

/* ================= CORK + BLUE THEME ================= */
.line:nth-child(2)>span{color:var(--blue)}

/* the sessions board */
.track-wrap{background:var(--corkbase) var(--cork, none) repeat;background-size:360px 360px}
.track-wrap::before{content:"";position:absolute;inset:0;pointer-events:none;box-shadow:inset 0 24px 40px -18px rgba(0,0,0,.55),inset 0 -24px 40px -18px rgba(0,0,0,.45)}
.pin-head{color:#3a2410;font-weight:500}
.counter b{color:#1a0f05}
.bar{background:rgba(58,36,16,.25)}
.bar i{background:var(--blue)}

/* note card */
.lead{background:var(--polaroid);color:#111;padding:28px 26px 30px;transform:rotate(-2deg);box-shadow:0 12px 26px rgba(60,35,10,.35),0 2px 4px rgba(0,0,0,.18);position:relative}
.lead::before{content:"";position:absolute;top:-13px;left:50%;width:120px;height:30px;transform:translateX(-50%) rotate(3deg);background:var(--tape);box-shadow:0 1px 2px rgba(0,0,0,.15)}
.lead p{color:#4a4a4a}

/* sessions as pinned polaroids */
.panel{background:var(--polaroid);color:#111;padding:14px 14px 0;box-shadow:0 14px 30px rgba(60,35,10,.38),0 2px 5px rgba(0,0,0,.2);transform:rotate(var(--r,0deg))}
.panel:nth-of-type(odd){--r:-1.8deg}
.panel:nth-of-type(even){--r:1.6deg}
.panel:hover{transform:rotate(0deg) translateY(-10px);background:var(--polaroid)}
.panel.soon{opacity:1}
.panel.soon canvas{opacity:.45}
.panel.soon .panel-text h3{color:#8a8a86}
.panel.soon:hover{transform:rotate(var(--r,0deg));background:var(--polaroid)}
.panel::before{content:"";position:absolute;z-index:2;top:-14px;left:50%;width:120px;height:32px;transform:translateX(-50%) rotate(-3deg);background:var(--tape);box-shadow:0 1px 2px rgba(0,0,0,.15)}
.panel:nth-of-type(even)::before{transform:translateX(-50%) rotate(4deg)}
.track .panel{grid-template-rows:1fr auto auto}
.panel canvas{order:-1}
.panel-text{order:1}
.panel-meta{order:2}
.panel-text{padding:16px 6px 2px}
.panel-text h3{color:#111}
.panel-text p{color:#5a5a5a}
.panel-meta{padding:8px 6px 16px;color:#777}
.panel-meta b{color:var(--blue);font-weight:600}

/* boarding pass at the end of the board */
.track::after{content:"";flex:0 0 clamp(60px,7vw,120px);height:1px}
.ticket{flex:0 0 clamp(250px,22vw,320px);position:relative;background:var(--polaroid);color:#111;padding:22px 22px 20px 34px;transform:rotate(3deg);box-shadow:0 14px 30px rgba(60,35,10,.38),0 2px 5px rgba(0,0,0,.2);font-variant-numeric:tabular-nums}
.ticket::before{content:"";position:absolute;left:0;top:0;bottom:0;width:14px;background:var(--denim) repeating-linear-gradient(45deg,rgba(255,255,255,.08) 0 2px,transparent 2px 4px)}
.ticket::after{content:"";position:absolute;top:-14px;right:22px;width:100px;height:30px;transform:rotate(-6deg);background:var(--tape);box-shadow:0 1px 2px rgba(0,0,0,.15)}
.t-top{font-family:ui-monospace,Menlo,Consolas,monospace;font-size:11px;line-height:1.5;letter-spacing:.06em;color:#333}
.t-big{font-weight:800;font-size:clamp(64px,6vw,92px);line-height:.9;letter-spacing:-.04em;margin-top:22px;color:var(--denim)}
.t-city{font-weight:700;font-size:20px;letter-spacing:.02em;margin-bottom:16px}
.ticket p{font-size:15px;line-height:1.45;color:#444;margin-bottom:18px}
.t-no{font-family:ui-monospace,Menlo,Consolas,monospace;font-size:12px;letter-spacing:.08em;margin-bottom:6px}
.t-bar{height:44px;background:repeating-linear-gradient(90deg,#111 0 2px,transparent 2px 4px,#111 4px 5px,transparent 5px 8px,#111 8px 11px,transparent 11px 12px,#111 12px 13px,transparent 13px 16px)}

/* denim footer */
footer{background:var(--denim) repeating-linear-gradient(45deg,rgba(255,255,255,.05) 0 2px,transparent 2px 4px);color:#c3cfe8;border-top:0}

/* blue touches on the session page */
.r-num{color:var(--blue)}
.learn{border-top-color:var(--blue)}
.l-head{background:linear-gradient(var(--denim),var(--denim)) no-repeat left/0% 100%}
.next::before{background:var(--denim)}

@media (max-width:860px){
  .panel,.lead,.ticket{transform:none}
  .panel:nth-of-type(odd){--r:-1deg}
  .panel:nth-of-type(even){--r:1deg}
  .panel{transform:rotate(var(--r))}
  .lead{margin-top:40px}
  .ticket{flex:none;width:100%;margin:16px 0 0}
}


@media (max-width:860px){
  .topline span:last-child{display:none}
  .intro-foot{grid-template-columns:1fr}
  .pin{position:static;height:auto;display:block}
  .pin-head{display:none}
  .track{flex-direction:column;align-items:stretch;padding-bottom:40px;transform:none!important}
  .lead,.panel,.tail{flex:none;width:100%}
  .lead{padding:56px 0 16px}
  .panel{height:auto}
  .panel canvas{aspect-ratio:4/3;height:auto}
  .panel-meta{padding-bottom:12px}
  .panel-text{padding-top:16px}
  .tail{padding:24px 0}
  .r-hero,.r-title{grid-template-columns:1fr}
  .r-art{max-width:420px}
  .who{grid-template-columns:1fr 1fr}
  .notes{grid-template-columns:1fr}
  .quiz-list li{grid-template-columns:1fr}
  .q-why{grid-column:auto}
  .room-bar .where{display:none}
  .room-bar{grid-template-columns:1fr 1fr}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01s!important;animation-delay:0s!important;transition-duration:.01s!important}
}

@media (max-width:860px){
  .track::after{display:none}
  .track .lead{padding:26px 22px 28px;margin-top:40px}
  .track .panel{grid-template-rows:auto auto auto}
}