@font-face{font-family:KineksText;src:url('../assets/fonts/KineksText-Bold.woff2') format('woff2');font-weight:700;font-style:normal;font-display:swap}
*{box-sizing:border-box}
:root{--bg:#f7f6f2;--fg:#151515;--muted:#77736c;--line:#d8d5ce;--accent:#151515}
html,body{margin:0;min-height:100%;background:var(--bg);color:var(--fg)}
body{font-family:Arial,Helvetica,sans-serif}
button,input{font:inherit}
.gravity-lab{max-width:1440px;margin:0 auto;padding:28px 32px 24px;min-height:100vh;display:flex;flex-direction:column;gap:28px}
.lab-header,.lab-footer{display:flex;align-items:center;justify-content:space-between;font-size:12px;letter-spacing:.08em;text-transform:uppercase}
.brand{color:inherit;text-decoration:none;font-weight:700}.lab-label,.lab-footer{color:var(--muted)}
.intro{display:grid;grid-template-columns:minmax(0,1fr) minmax(280px,420px);gap:32px;align-items:end}
.eyebrow{margin:0 0 8px;font-size:12px;letter-spacing:.1em;color:var(--muted)}
h1{margin:0;font:700 clamp(42px,7vw,96px)/.9 KineksText,Arial,sans-serif;letter-spacing:-.045em}
.intro-copy{margin:0;max-width:390px;font-size:14px;line-height:1.5;color:var(--muted)}
.controls{display:grid;grid-template-columns:minmax(240px,1.5fr) minmax(190px,1fr) auto auto;gap:12px;align-items:end}
.control-group{min-width:0}.control-group label,.control-top{display:flex;justify-content:space-between;gap:10px;font-size:11px;text-transform:uppercase;letter-spacing:.08em;color:var(--muted);margin-bottom:8px}
#textInput{width:100%;border:1px solid var(--line);background:transparent;padding:11px 12px;border-radius:0;color:var(--fg);outline:none}
#textInput:focus{border-color:var(--fg)}
#sizeRange{width:100%;accent-color:var(--fg)}
.worlds,.actions{display:flex;gap:6px}.world,.reset,.meteor{border:1px solid var(--line);background:transparent;color:var(--fg);padding:11px 13px;cursor:pointer;min-height:44px}.world{display:flex;flex-direction:column;align-items:flex-start;min-width:78px}.world small{font-size:10px;color:var(--muted);margin-top:2px}.world.active,.world:hover,.meteor:hover,.reset:hover{border-color:var(--fg)}.world.active{background:var(--fg);color:var(--bg)}.world.active small{color:#c8c5bd}
.meteor{font-weight:700}.actions{align-items:end}
.stage{position:relative;height:clamp(420px,58vh,720px);min-height:420px;flex:none;overflow:hidden;border-top:1px solid var(--line);border-bottom:1px solid var(--line);touch-action:none;isolation:isolate}
.stage::after{content:"";position:absolute;inset:auto 0 0;height:1px;background:var(--line);z-index:0}.stage-hint{position:absolute;top:16px;left:0;font-size:11px;color:var(--muted);letter-spacing:.04em;z-index:1;pointer-events:none}.word{position:absolute;inset:0}.glyph{position:absolute;left:0;top:0;display:block;font:700 var(--font-size) KineksText,Arial,sans-serif;line-height:1;white-space:pre;user-select:none;cursor:grab;transform-origin:center center;will-change:transform}.glyph.dragging{cursor:grabbing;z-index:3}.measure{position:static!important;transform:none!important;visibility:hidden;pointer-events:none}
.meteor-impact{animation:impact .52s cubic-bezier(.2,.8,.2,1)}
@keyframes impact{0%{box-shadow:inset 0 0 0 0 rgba(0,0,0,0)}12%{box-shadow:inset 0 0 0 5px rgba(0,0,0,.09)}30%{box-shadow:inset 0 0 0 1px rgba(0,0,0,.04)}100%{box-shadow:inset 0 0 0 0 rgba(0,0,0,0)}}
.lab-footer{padding-top:2px}
@media(max-width:1100px){.controls{grid-template-columns:minmax(220px,1.4fr) minmax(170px,1fr);}.worlds{grid-column:1/-1}.actions{justify-content:flex-end}}
@media(max-width:900px){.gravity-lab{padding:22px 20px 20px}.intro{grid-template-columns:1fr}.controls{grid-template-columns:1fr 1fr}.text-control{grid-column:1/-1}.worlds{grid-column:1/-1}.actions{justify-content:flex-end}.stage{height:440px;min-height:440px}}
@media(max-width:560px){.gravity-lab{padding:18px 14px 16px;gap:22px}.lab-header,.lab-footer{font-size:10px}.controls{grid-template-columns:1fr}.text-control,.worlds{grid-column:auto}.worlds{width:100%}.world{flex:1}.actions{justify-content:stretch}.actions button{flex:1}.stage{height:400px;min-height:400px}.intro-copy{max-width:none}}
@media(prefers-reduced-motion:reduce){.meteor-impact{animation:none}}