.kit-button{background:var(--ink);color:#fff;border-radius:4px;justify-content:space-between;align-items:center;gap:48px;min-height:52px;padding:0 22px;font-size:12px;display:inline-flex}.kit-button span{font-size:16px}.kit-button:hover{background:var(--blue-ink)}.kit-button-quiet{color:var(--ink);box-shadow:inset 0 0 0 1px var(--ink);background:0 0}.kit-button-quiet:hover{color:var(--blue-ink);box-shadow:inset 0 0 0 1px var(--blue-ink);background:0 0}.model-picker{padding-bottom:clamp(48px,7vw,96px)}.model-grid{gap:var(--doc-gap);grid-template-columns:minmax(0,1fr);margin:0;padding:0;list-style:none;display:grid}.model-grid>li{display:grid}.model-card{border:1px solid var(--line);background:#fff;border-radius:20px;grid-template-rows:auto 1fr;transition:border-color .16s;display:grid;overflow:hidden}.model-card:hover{border-color:var(--ink)}.model-image{--pad:clamp(20px, 4vw, 48px);aspect-ratio:16/10;border-bottom:1px solid var(--line);margin:0;position:relative}.model-image img{top:var(--pad);left:var(--pad);width:calc(100% - 2 * var(--pad));height:calc(100% - 2 * var(--pad));object-fit:contain;position:absolute}.model-image-drawing img{transform:scale(1.3)}.model-text{grid-template-rows:auto auto 1fr auto;gap:8px;padding:24px clamp(20px,2.4vw,32px) clamp(24px,2.4vw,32px);display:grid}.model-text h2{letter-spacing:-.05em;font-size:clamp(30px,3.2vw,44px);font-weight:400;line-height:1.05}.model-desc{max-width:28em;color:var(--muted);text-wrap:pretty;font-size:16px;line-height:1.5}.model-go{justify-self:start;margin-top:20px;transition:background .16s}.model-card:hover .model-go{background:var(--blue-ink)}@media (min-width:760px){.model-grid{grid-template-columns:repeat(12,minmax(0,1fr))}.model-grid>li{grid-column:span 6}}.start-steps{margin:0;padding:0;list-style:none}.step{border-top:1px solid var(--line);grid-template-columns:minmax(0,1fr);gap:20px;padding:clamp(40px,6vw,80px) 0;display:grid}.step-head{align-content:start;gap:10px;display:grid}.step-no{letter-spacing:.08em;color:var(--blue-ink);font-size:10px;font-weight:700}.step-head h2{letter-spacing:-.05em;font-size:clamp(32px,3.6vw,48px);font-weight:400;line-height:1.05}.step-lead{letter-spacing:-.025em;text-wrap:pretty;max-width:30em;font-size:clamp(19px,1.7vw,24px);line-height:1.4}.step-lead b{font-weight:700}.step-points{counter-reset:point;gap:12px;max-width:40em;margin:24px 0 0;padding:0;list-style:none;display:grid}.step-points li{text-wrap:pretty;counter-increment:point;padding-inline-start:34px;font-size:16px;line-height:1.6;position:relative}.step-points li:before{content:counter(point);inset-inline-start:0;background:var(--ink);color:#fff;border-radius:50%;place-items:center;width:22px;height:22px;font-size:11px;font-weight:700;line-height:1;display:grid;position:absolute;top:.15em}.step-points b,.step-note b{font-weight:700}.step-note{max-width:40em;color:var(--muted);text-wrap:pretty;margin-top:16px;font-size:14px;line-height:1.6}.step-note a,.step-points a{text-underline-offset:3px;-webkit-text-decoration:underline #b5b7c6;text-decoration:underline #b5b7c6;text-decoration-thickness:1px}.step-note a{margin-block:-13px;padding-block:13px;display:inline-block}.step-note a:hover,.step-points a:hover{color:var(--blue-ink);text-decoration-color:currentColor}.start-choices{grid-template-columns:minmax(0,1fr);gap:12px;margin-top:28px;display:grid}.start-choice{border:1px solid var(--line);background:#fff;border-radius:14px;grid-template-rows:auto 1fr auto;gap:16px;padding:20px;display:grid}.choice-q{letter-spacing:-.01em;font-size:15px;font-weight:700;line-height:1.4}.choice-note{color:var(--muted);font-size:14px;line-height:1.5}.start-choice .kit-button{align-self:end}@media (min-width:640px){.start-choices{grid-template-columns:repeat(2,minmax(0,1fr));max-width:720px}}.step-actions{flex-wrap:wrap;gap:12px;margin-top:28px;display:flex}@media (max-width:639px){.step-actions .kit-button{flex:100%}}@media (min-width:1024px){.step{column-gap:var(--doc-gap);grid-template-columns:repeat(12,minmax(0,1fr))}.step-head{top:calc(var(--header-height) + 32px);grid-column:1/span 3;align-self:start;position:sticky}.step-body{grid-column:4/-1}}.doc-page .doc-note{overflow-wrap:anywhere}.app-line{align-items:center;gap:12px;display:flex}.app-icon{border-radius:9px;flex:none;width:40px;height:40px}.app-line span{gap:2px;display:grid}.app-line small{color:var(--muted);font-size:12px;font-weight:400}.sr-only{clip:rect(0 0 0 0);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}.card-stack{--gap:16px;max-width:1000px;margin-top:40px;position:relative}.stack-list{gap:var(--gap);grid-template-columns:repeat(5,minmax(0,1fr));margin:0;padding:0;list-style:none;display:grid}.stack-item{transition:transform .7s cubic-bezier(.22,1,.36,1);position:relative}.stack-item-0{z-index:5}.stack-item-1{z-index:4;transition-delay:30ms}.stack-item-2{z-index:3;transition-delay:60ms}.stack-item-3{z-index:2;transition-delay:90ms}.stack-item-4{z-index:1;transition-delay:.12s}.stack-link{border-radius:12px;display:block}.stack-link img{border:1px solid var(--line);background:#fff;border-radius:12px;width:100%;height:auto;transition:border-color .16s;display:block}.stack-link:hover img{border-color:var(--ink)}.stack-link:focus-visible{outline:2px solid var(--blue-ink);outline-offset:4px}.card-stack[data-state=closed] .stack-item-1{transform:translateX(calc(-1 * (100% + var(--gap)) + 6px)) translateY(-5px) rotate(2deg)}.card-stack[data-state=closed] .stack-item-2{transform:translateX(calc(-2 * (100% + var(--gap)) + 12px)) translateY(-10px) rotate(4deg)}.card-stack[data-state=closed] .stack-item-3{transform:translateX(calc(-3 * (100% + var(--gap)) + 18px)) translateY(-15px) rotate(6deg)}.card-stack[data-state=closed] .stack-item-4{transform:translateX(calc(-4 * (100% + var(--gap)) + 24px)) translateY(-20px) rotate(8deg)}.stack-toggle{width:calc((100% - 4 * var(--gap)) / 5 + 40px);height:calc(100% + 68px);color:var(--muted);font:inherit;cursor:pointer;-webkit-tap-highlight-color:transparent;background:0 0;border:0;border-radius:14px;justify-content:center;align-items:flex-end;padding:0 40px 0 0;font-size:14px;line-height:1.5;display:flex;position:absolute;top:-24px;left:0}.stack-toggle[hidden]{display:none}.stack-label{text-underline-offset:3px;-webkit-text-decoration:underline #b5b7c6;text-decoration:underline #b5b7c6}.stack-toggle:hover .stack-label{color:var(--blue-ink);text-decoration-color:currentColor}.stack-toggle:focus-visible{outline:2px solid var(--blue-ink);outline-offset:6px}.card-stack.is-interactive{margin-bottom:44px}@media (max-width:759px){.card-stack{display:none}}@media (prefers-reduced-motion:no-preference){html:has(.card-stack){scroll-behavior:smooth}}@media (prefers-reduced-motion:reduce){.stack-item{transition:none}}.start-steps>.step{scroll-margin-top:calc(var(--header-height,64px) + 16px)}