.stack-prototype{overflow-x:clip;isolation:isolate;transition:--stack-pigment var(--stack-swap-duration) var(--stack-easing)}[data-color-dragging] .stack-prototype{transition-duration:var(--stack-blend-duration);transition-timing-function:var(--stack-blend-easing)}.stack-prototype .prototype-note{display:flex;flex-wrap:wrap;justify-content:space-between;gap:var(--space-1);color:var(--text-muted);margin-bottom:var(--space-4)}.stack-prototype .prototype-note a{text-decoration:none}.stack-prototype .stack-layout{display:grid;grid-template-columns:max-content minmax(0,1fr);grid-template-areas:"nav card" ". help";gap:var(--space-3) var(--space-4);align-items:start}.stack-prototype:where(.stack-nav-right) .stack-layout{grid-template-columns:minmax(0,1fr) max-content;grid-template-areas:"card nav" "help ."}.stack-prototype .stack-tabs{grid-area:nav;display:grid;gap:var(--space-1)}.stack-prototype .stack-tabs button{display:flex;align-items:center;justify-content:flex-start;gap:var(--space-1);padding:var(--space-1);min-height:var(--target-min);touch-action:manipulation;border:var(--border-width) solid var(--line);background:var(--surface);color:var(--text-muted);cursor:pointer;font:var(--type-meta);text-transform:none}.stack-prototype .stack-tabs button[aria-pressed=true]{border-color:var(--accent);color:var(--text);background:var(--accent-soft)}.stack-prototype .stack-tabs kbd{padding:0;border:0;background:none;color:inherit}.stack-prototype .deck{grid-area:card;position:relative;isolation:isolate;margin-right:var(--space-2);margin-bottom:0}.stack-prototype .deck:before,.stack-prototype .deck:after{content:"";position:absolute;inset:0;border:var(--border-width) solid var(--line);background:var(--page);transform:translate(var(--space-2),var(--space-2))}.stack-prototype .deck:after{transform:translate(calc(var(--space-2) / 2),calc(var(--space-2) / 2))}.stack-prototype .stack-sizer{display:grid}.stack-prototype .stack-sizer .deck-card{grid-area:1 / 1}.stack-prototype .stack-sizer .deck-card:not(:first-child){visibility:hidden}.stack-prototype.stack-ready .stack-sizer{visibility:hidden;pointer-events:none}.stack-prototype .deck-card{padding:var(--feature-card-padding);gap:var(--space-3);min-height:var(--stack-card-height);background:var(--page);border-color:var(--accent);backface-visibility:hidden;cursor:grab}.stack-prototype .deck-card h2{text-wrap:balance}.stack-prototype .deck-card p{max-width:var(--measure);text-wrap:pretty}.stack-prototype .deck-card .meta{justify-content:space-between}.stack-prototype .stack-name{color:var(--accent)}.stack-prototype .stack-card-foot{display:flex;flex-wrap:wrap;align-items:center;gap:var(--space-1);justify-content:space-between;margin-top:auto;padding-top:var(--space-3);color:var(--text-muted)}.stack-prototype #preview,.stack-prototype .motion-layer{position:absolute;inset:0;z-index:var(--layer-sticky)}.stack-prototype .magnetic-hit{cursor:grab;touch-action:pan-y pinch-zoom;user-select:none;-webkit-user-select:none}.stack-prototype .magnetic-hit[data-dragging]{cursor:grabbing}.stack-prototype .magnetic-card{transform-origin:center center}.stack-prototype .stack-read{--primary: var(--accent);white-space:nowrap;min-height:var(--target-min);touch-action:manipulation;cursor:pointer}.stack-prototype .stack-help{grid-area:help;margin:var(--space-2) 0 0;color:var(--text-muted)}.stack-prototype .stack-status{position:absolute;width:0;height:0;overflow:hidden}.stack-prototype .stack-ambient{position:fixed;inset:0;z-index:var(--stack-ambient-layer);pointer-events:none}.stack-prototype .stack-ambient i{position:absolute;inset:0;background:var(--stack-gradient);opacity:calc(var(--stack-glow) * var(--weight,0));transition:opacity var(--stack-swap-duration) var(--stack-easing)}[data-color-dragging] .stack-prototype .stack-ambient i{transition:opacity var(--stack-blend-duration) var(--stack-blend-easing)}.stack-prototype .deck-card i{--primary: var(--accent)}@media(max-width:809.98px){.stack-prototype .stack-layout{grid-template-columns:minmax(0,1fr);grid-template-areas:"nav" "card" "help"}.stack-prototype .stack-tabs{grid-template-columns:repeat(4,minmax(max-content,1fr));gap:var(--space-1);min-width:0;overflow-x:auto;overscroll-behavior-x:contain}.stack-prototype .stack-tabs button{flex-direction:column;justify-content:center;gap:0;padding:var(--space-1) 0;min-width:var(--target-min);white-space:nowrap}}@media(prefers-reduced-motion:reduce){.stack-prototype .stack-ambient i{transition:none}.stack-prototype .magnetic-hit{cursor:default}.stack-prototype .stack-gesture-help{display:none}}.stack-prototype .stack-tabs[hidden],.stack-prototype .stack-help[hidden],.stack-prototype .deck-card[hidden]{display:none}.stack-prototype .stack-help p{margin:0}.stack-prototype .stack-shortcuts{display:inline-flex;align-items:center;gap:var(--space-1);min-height:var(--target-min);cursor:pointer}.stack-prototype .stack-shortcuts input{accent-color:var(--primary)}.stack-prototype .stack-card-foot>span{margin-left:auto;white-space:nowrap}.stack-prototype .stack-fallback{display:flex;flex-wrap:wrap;gap:var(--space-3);margin-top:var(--space-3)}.stack-prototype .stack-fallback a{display:inline-flex;align-items:center;min-height:var(--target-min)}