:root{--ink:#1d1d1b;--paper:#f3f0e7;--white:#fffefb;--lime:#d9f344;--pink:#f4b3cc;--lilac:#c7b7ef;--red:#f24a2d;--blue:#2862ae}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--ink);font-family:Arial,Helvetica,sans-serif;line-height:1.32}
header{display:grid;grid-template-columns:minmax(0,1.45fr) minmax(260px,.55fr);gap:36px;align-items:end;padding:34px 3vw 30px;border-bottom:2px solid;max-width:2200px;margin:auto}
.kicker,.eyebrow{font-size:11px;font-weight:900;letter-spacing:.09em;text-transform:uppercase}
h1{font-size:clamp(48px,7vw,112px);line-height:.84;letter-spacing:-.072em;margin:12px 0 0;max-width:1280px}
header p{max-width:650px;margin:0;font-size:14px}
main{max-width:2200px;margin:auto;padding:28px 3vw 84px}
.scope{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin-bottom:42px}
.scope div{border:1.5px solid;padding:11px 12px;background:var(--white);font-size:12px}.scope b{display:block;font-size:10px;letter-spacing:.08em;text-transform:uppercase;margin-bottom:4px}
section{margin-top:70px}
.section-head{display:grid;grid-template-columns:minmax(0,1fr) minmax(280px,650px);gap:30px;align-items:end;margin:0 0 16px}
.section-head h2{font-size:clamp(38px,4.3vw,72px);line-height:.9;letter-spacing:-.058em;margin:7px 0 0}.section-head p{margin:0;font-size:14px;max-width:640px}
.study{min-width:0}.study.wide{grid-column:1/-1}.study-head{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-bottom:8px}.study h3{font-size:22px;letter-spacing:-.035em;margin:0}
.depth-key,.tools{display:flex;align-items:center;gap:8px;flex-wrap:wrap}.depth-key span,.state{border:1.5px solid;border-radius:999px;padding:5px 8px;background:var(--white);font-size:9px;font-weight:900;text-transform:uppercase;letter-spacing:.06em}
.frame{position:relative;width:100%;aspect-ratio:16/9;overflow:hidden;border:2px solid;background:var(--lime);touch-action:none}.frame svg{display:block;width:100%;height:100%}.hint{position:absolute;right:10px;bottom:9px;background:rgba(255,254,251,.94);border:1px solid;padding:5px 7px;font-size:9px;font-weight:900;letter-spacing:.05em;text-transform:uppercase;pointer-events:none}
.motion{appearance:none;border:2px solid;background:var(--white);color:var(--ink);padding:8px 13px;border-radius:999px;font-size:10px;font-weight:900;letter-spacing:.06em;text-transform:uppercase;cursor:pointer}.motion:hover,.motion:focus-visible,.motion.active{background:var(--ink);color:var(--white)}.motion:focus-visible{outline:3px solid var(--red);outline-offset:2px}.state.active{background:var(--red);color:#fff}.state.complete{background:var(--lime)}
.notes{border:2px solid;border-top:0;background:var(--white)}.notes.four{display:grid;grid-template-columns:repeat(4,1fr);border-top:2px solid;margin-top:10px}.note{padding:10px 11px;border-left:1px solid rgba(29,29,27,.24);font-size:11px;line-height:1.35;min-height:92px}.note:first-child{border-left:0}.note b{display:block;font-size:9px;letter-spacing:.07em;text-transform:uppercase;margin-bottom:4px}
.capsule{transition:filter .2s ease}.bg-modules{will-change:transform}

.skills-frame{aspect-ratio:16/8.4}.skills-frame .hint{left:10px;right:auto}.skill-switch{justify-content:flex-end}
.palette-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}.palette-study{border:2px solid;background:var(--white)}.palette-label{display:flex;justify-content:space-between;gap:15px;padding:10px 12px;font-size:10px;text-transform:uppercase;letter-spacing:.04em}.palette-label span{text-align:right}.palette-scene{height:350px;position:relative;overflow:hidden}.palette-scene img{position:absolute;z-index:3;width:60%;left:20%;top:25%}.palette-scene .module{position:absolute;z-index:1;width:48%;height:17%;border-radius:999px}.palette-scene .m1{left:-13%;top:15%;transform:rotate(-9deg)}.palette-scene .m2{right:-10%;bottom:14%;transform:rotate(8deg)}.palette-scene .skill-pill{position:absolute;z-index:4;left:8%;bottom:10%;border:4px solid;border-radius:999px;background:var(--white);padding:11px 17px;font-size:18px;font-weight:900;transform:rotate(-5deg)}.palette-scene i{position:absolute;z-index:5;right:8%;top:8%;width:42px;height:42px;background:var(--red);border-radius:50%}
.palette-a .palette-scene{background:var(--lime)}.palette-a .module{background:var(--lilac)}
.palette-b .palette-scene{background:var(--blue)}.palette-b .module{background:var(--lilac)}
.palette-c .palette-scene{background:var(--pink)}.palette-c .module{background:var(--lime)}
.system-frame{aspect-ratio:16/8.4}.blue-field{background:var(--blue)}
footer{display:flex;justify-content:space-between;gap:20px;border-top:2px solid;margin-top:58px;padding-top:16px;font-size:12px}

@media(max-width:1450px){.scope{grid-template-columns:1fr 1fr}.notes.four{grid-template-columns:1fr 1fr}.notes.four .note:nth-child(3){border-left:0;border-top:1px solid rgba(29,29,27,.24)}.palette-scene{height:300px}}
@media(max-width:950px){header,.section-head{grid-template-columns:1fr}.palette-grid{grid-template-columns:1fr}.palette-scene{height:430px}.notes.four{grid-template-columns:1fr}.note{border-left:0;border-top:1px solid rgba(29,29,27,.24)}.depth-key{justify-content:flex-end}}
@media(max-width:620px){header{padding:24px 18px}main{padding:22px 18px 65px}.scope{grid-template-columns:1fr}.study-head{align-items:flex-start}.frame,.skills-frame,.system-frame{aspect-ratio:4/5}.palette-scene{height:300px}.palette-label{display:block}.palette-label span{display:block;text-align:left;margin-top:4px}.notes.four{margin-top:8px}footer{display:block}.depth-key{display:none}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.capsule{transition:none!important}}