.part-content{display:contents}
/* Keep the desktop composition; smaller canvases get their own scene framing. */
@media(max-width:1100px),(max-height:600px){
 html{scrollbar-width:none}
 html::-webkit-scrollbar{display:none}
 :root{--ui-font:'Inter Tight',Arial,Helvetica,sans-serif;--ui-border:#11130d26;--ui-muted:#62635b;--ui-radius:14px}
 body{font-family:var(--ui-font);font-size:16px;line-height:1.4;letter-spacing:-.015em}
 button{font-family:inherit;font-weight:600;line-height:1.3;letter-spacing:-.015em}
 header{inset:max(16px,env(safe-area-inset-top)) max(20px,env(safe-area-inset-right)) auto max(20px,env(safe-area-inset-left))}
 .logo{font-size:36px;line-height:1;letter-spacing:-2.5px}
 nav{padding:5px;gap:2px;border-radius:19px}
 nav button{min-height:44px;height:44px;padding:0 12px;font-size:13px;border-radius:12px}
 .hero-cta,nav .nav-cta,.primary,.builder .primary,.complete .primary{display:flex;align-items:center;justify-content:space-between;gap:16px;height:50px;min-height:50px;padding:7px 7px 7px 16px;border-radius:14px;background:var(--acid);color:var(--ink);font-size:14px;font-weight:650;border:0;line-height:20px}
 nav .nav-cta{height:44px;min-height:44px;padding:5px 5px 5px 12px;gap:12px}
 .hero-cta .action-icon,nav .nav-cta .action-icon,.primary .action-icon{display:grid;place-items:center;flex:0 0 36px;width:36px;height:36px;padding:0;border-radius:7px;background:var(--ink);color:#fff}
 nav .nav-cta .action-icon{flex-basis:34px;width:34px;height:34px}
 .action-icon svg{display:block;width:20px;height:20px}
 .primary:hover{background:#cfe931;color:var(--ink)}
 .primary:active,.nav-cta:active,.hero-cta:active{background:#c2db29}
 button:focus-visible,a:focus-visible{outline:2px solid var(--ink);outline-offset:3px}
 .builder,.complete{right:20px;left:auto;top:84px;bottom:76px;transform:none;width:calc(46% - 32px);max-height:none;overflow-y:auto;overscroll-behavior:contain;scrollbar-width:thin;scrollbar-color:#11130d55 transparent;padding:0 4px 16px}
 .builder.visible,.complete.visible{transform:none}
 .builder-top{display:flex;align-items:center;justify-content:space-between;font-size:11px;font-weight:600;letter-spacing:.08em;margin:0 0 6px}
 .builder-top button{display:flex;align-items:center;justify-content:center;gap:6px;min-height:44px;padding:8px;font-size:12px;letter-spacing:0;border:0;background:transparent}
 .builder .tabs{position:sticky;top:0;z-index:2;display:flex;margin:0 0 16px;background:var(--surface);border-bottom:1px solid var(--ui-border)}
 .tabs button{display:flex;align-items:center;justify-content:center;gap:6px;min-height:44px;padding:10px 4px;font-size:14px;opacity:1;color:var(--ui-muted)}
 .tabs button small{font-size:11px}
 .tabs button[aria-selected=true]{color:var(--ink);border-color:var(--ink)}
 .builder h2,.complete h2,.story-label h1{font-family:var(--ui-font);font-weight:800;letter-spacing:-.04em;line-height:1.02}
 .builder h2{font-size:32px;margin:0 0 8px}
 .part-note,.builder .part-note{font-size:14px;line-height:1.4;opacity:1;color:var(--ui-muted);margin:0 0 14px}
 .product-options{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px}
 .product-options button{display:flex;flex-direction:column;align-items:center;justify-content:flex-start;min-width:0;padding:6px 4px 10px;gap:0;border:1px solid #11130d1a;border-radius:14px;background:#ffffff4d;box-shadow:none}
 .product-options button[aria-pressed=true]{border-color:var(--ink);background:#ffffffad;box-shadow:inset 0 0 0 1px var(--ink)}
 .product-options img{width:100%;height:76px;object-fit:contain;pointer-events:none}
 .deck-options img{height:96px}
 .product-options strong{font-size:13px;font-weight:650;line-height:1.35;text-align:center;margin-top:3px}
 .product-options small{font-size:11px;line-height:1.4;text-align:center;color:var(--ui-muted);margin-top:3px}
 .truck-options{grid-template-columns:repeat(2,minmax(0,1fr))}
 .truck-options img{height:96px}
 .spec,.builder .spec{display:flex;align-items:center;justify-content:space-between;gap:12px;margin:14px 0 10px;padding:12px 0;border-color:var(--ui-border)}
 .spec span{font-size:11px;font-weight:550;line-height:1.4;letter-spacing:.03em}
 .spec strong{font-size:16px;white-space:nowrap}
 .compact-field{margin:14px 0}
 legend{font-size:14px;font-weight:550;margin:0 0 8px}
 .segments{display:flex;padding:3px;gap:3px;border-radius:13px;border:1px solid var(--ui-border)}
 .compact-field .segments button,.segments button{min-height:44px;padding:8px 2px;border-radius:9px;font-size:13px;background:transparent}
 .segments button[aria-pressed=true]{background:var(--ink);color:#fff}
 .builder .primary,.complete .primary{margin:14px 0 0;width:100%}
 .builder .primary{position:sticky;bottom:0;z-index:2}
 .saved{font-size:13px;line-height:1.45;min-height:0;margin:10px 0 0}
 .saved:empty{display:none}
 .complete>span{font-size:11px;font-weight:600;letter-spacing:.08em}
 .complete h2{font-size:48px;margin:18px 0}
 .complete p{font-size:15px;line-height:1.6;color:var(--ui-muted)}
 #summary{border-block:1px solid var(--ui-border);padding:14px 0;margin:18px 0;line-height:1.75}
 .edit{display:flex;align-items:center;justify-content:center;gap:8px;width:100%;min-height:44px;margin:10px 0 0;padding:10px 12px;border:1px solid var(--ui-border);border-radius:14px;font-size:14px;text-decoration:none;background:transparent}
 footer{inset:auto max(20px,env(safe-area-inset-right)) max(16px,env(safe-area-inset-bottom)) max(20px,env(safe-area-inset-left));align-items:center}
 footer p{font-size:12px;line-height:1.35}
 .playback{gap:8px;font-size:11px}
 .playback button{display:grid;place-items:center;width:44px;height:44px;border:1px solid var(--ui-border);border-radius:12px;background:#ffffff40}
 .playback svg{width:16px;height:16px}
 #scroll-hint{display:flex;align-items:center;gap:6px}
 #scroll-hint svg{width:14px;height:14px}
 .model-view-controls{position:absolute;left:27%;bottom:max(16px,env(safe-area-inset-bottom));height:44px;z-index:3;display:flex;align-items:center;gap:12px;transform:translateX(-50%);white-space:nowrap;font-family:var(--ui-font);font-size:12px;color:var(--ui-muted)}
 .model-view-controls button{display:flex;align-items:center;gap:6px;min-height:44px;padding:8px 10px;border:1px solid var(--ui-border);border-radius:12px;background:#ffffff80;font-size:12px;color:var(--ink)}
 #scene:focus{outline:none}
 #scene:focus-visible+.model-view-controls{outline:2px solid var(--ink);outline-offset:3px;border-radius:12px}
 .error{inset:100px 20px 90px;padding:20px;overflow:auto}
 .error h2{font-size:32px}
}
@media(max-width:820px) and (orientation:portrait){
 header{inset:max(14px,env(safe-area-inset-top)) max(16px,env(safe-area-inset-right)) auto max(16px,env(safe-area-inset-left))}
 .logo{font-size:34px}
 .logo sup{font-size:10px;margin-top:5px}
 nav button:first-child{display:none}
 nav button{padding:0 10px;font-size:12px}
 nav .nav-cta{gap:10px;font-size:12px}
 .type-scene.reference-layout{inset:0;display:block}
 .reference-layout .headline-block{position:absolute;display:block;font-family:var(--ui-font);font-size:clamp(64px,18vw,132px);font-weight:800;letter-spacing:-.04em;line-height:.88}
 .reference-layout .headline-top{left:5%;top:12%}
 .reference-layout .headline-bottom{right:5%;bottom:24%;font-size:clamp(56px,16vw,118px);text-align:right}
 .hero-copy{display:block;position:absolute;left:5%;right:5%;bottom:calc(70px + env(safe-area-inset-bottom));z-index:3;max-width:none}
 .hero-copy p{font-size:15px;font-weight:450;line-height:1.4;letter-spacing:-.015em;margin:0 0 12px}
 .hero-copy .hero-cta{width:100%;height:50px}
 .story-label{left:5%;right:5%;top:calc(var(--panel-top) + 16px);width:auto}
 .story-label>span{font-size:11px;letter-spacing:.08em}
 .story-label h1{font-size:clamp(44px,13vw,80px);line-height:.95;margin:14px 0 0}
 .builder,.complete{left:12px;right:12px;top:var(--panel-top);bottom:calc(68px + env(safe-area-inset-bottom));width:auto;padding:10px 12px 16px;border:1px solid var(--ui-border);border-radius:20px;background:var(--surface);backdrop-filter:none;transform:none;max-height:none}
 .builder-top{position:absolute;top:54px;right:10px;z-index:3;margin:0}
 .builder-top>span{display:none}
 .builder-top button{min-height:44px;padding:6px;font-size:12px}
 .builder .tabs{margin:0 0 12px}
 .builder h2{font-size:28px;padding-right:66px}
 .builder .part-note{font-size:14px;margin-bottom:12px}
 .product-options,.truck-options{display:grid;grid-template-columns:none;grid-auto-flow:column;grid-auto-columns:108px;gap:8px;overflow-x:auto;scroll-snap-type:x mandatory;overscroll-behavior-x:contain;scrollbar-width:thin;scrollbar-color:#11130d55 transparent;padding:2px 2px 8px;margin:0 -2px}
 .product-options button{scroll-snap-align:start;padding:5px 4px 9px;min-height:125px}
 .product-options img,.truck-options img{height:72px}
 .deck-options img{height:78px}
 .product-options strong{font-size:13px}
 .product-options small{font-size:11px}
 .builder .spec{margin:8px 0;padding:10px 0}
 .complete{bottom:calc(120px + env(safe-area-inset-bottom));padding:16px}
 .complete h2{font-size:38px;margin:12px 0}
 .complete p{font-size:14px}
 #summary{margin:14px 0;padding:12px 0;line-height:1.65}
 .complete .primary{max-width:none;margin-top:12px}
 .complete .edit{margin-top:8px}
 footer{inset:auto 16px max(12px,env(safe-area-inset-bottom))}
 footer p{font-size:11px}
 .model-view-controls{left:50%;bottom:calc(64px + env(safe-area-inset-bottom));gap:14px;font-size:12px}
 .model-view-controls button{min-height:44px}
 .scroll-track{height:720svh}
 .scroll-track section{height:120svh}
}
@media(max-width:370px) and (orientation:portrait){
 header{left:12px;right:12px}.logo{font-size:30px}nav button{padding-inline:8px}nav .nav-cta{padding-left:10px;gap:8px}
 .builder,.complete{left:8px;right:8px;padding-inline:12px}.product-options{grid-auto-columns:100px}.builder h2{font-size:28px}
 .reference-layout .headline-block{font-size:18vw}.reference-layout .headline-bottom{font-size:16vw}
}
@media(max-height:600px) and (orientation:landscape){
 header{top:10px;left:16px;right:16px}.logo{font-size:30px}nav{padding:3px}
 .builder,.complete{top:74px;bottom:66px;right:16px;width:calc(46% - 24px);padding-bottom:12px}
 .builder-top{display:none}.builder .tabs{margin-bottom:12px}.builder h2{font-size:28px}.builder .part-note{font-size:13px}
 .product-options img{height:64px}.deck-options img{height:80px}.product-options strong{font-size:12px}.product-options small{font-size:10px}
 .complete h2{font-size:36px;margin:10px 0}.complete #summary{font-size:13px;margin:10px 0;padding:10px 0}
 .reference-layout .headline-block{font-size:clamp(48px,9vw,88px)}.reference-layout .headline-top{left:3%;top:22%}.reference-layout .headline-bottom{right:3%;bottom:25%}
 .hero-copy{left:3%;bottom:65px}.hero-copy p{display:none}.hero-copy .hero-cta{height:46px;min-height:46px}
 .story-label{top:28%;right:3%;width:40%;left:auto}.story-label h1{font-size:clamp(36px,6vw,64px)}
 footer{left:16px;right:16px;bottom:10px}
}

/* Keep chapter actions outside the scrollable product content. */
@media(max-width:1100px),(max-height:600px){
 .builder{display:flex;flex-direction:column;overflow:hidden}
 .builder-top{flex:none;position:static;display:flex;align-items:center;justify-content:space-between;margin:0 0 4px}
 .builder-top>span{display:block}
 .builder-top button{min-height:44px}
 .builder .tabs{position:static;flex:none}
 .builder [role=tabpanel]{display:flex;flex-direction:column;flex:1;min-height:0}
 .part-content{display:block;flex:1;min-height:0;overflow-y:auto;overscroll-behavior-y:contain;scrollbar-width:thin;scrollbar-color:#11130d55 transparent;padding:0 3px 4px 0}
 .builder .primary{position:static;flex:none;margin-top:12px}
 .builder h2{padding-right:0}
}
@media(max-height:600px) and (orientation:landscape){.builder-top{display:none}}

/* A deck-graphic attitude for the invitation, within the existing light scene. */
.story-label>span:empty{display:none}
.story-label h1{font-size:clamp(58px,6.6vw,140px);line-height:.92;letter-spacing:-.04em;margin:0}
.story-lead{display:block;white-space:nowrap}
.story-punch{display:block;width:max-content;max-width:100%;margin:.10em 0 0 -.06em;padding:.035em .09em .10em;background:var(--acid);color:var(--ink);border-radius:14px;font-size:1.16em;font-weight:inherit;line-height:.90;transform:rotate(-5deg);transform-origin:45% 55%}
@media(max-width:820px) and (orientation:portrait){
 .story-label{top:calc(var(--panel-top) + 28px)}
 .story-label h1{font-size:clamp(46px,12vw,80px);line-height:.92}
 .story-punch{margin-top:.08em}
}
@media(max-height:600px) and (orientation:landscape){
 .story-label h1{font-size:clamp(36px,6vw,64px)}
}

/* Keep the heading above the product, leaving the lower scene to the board and mascot. */
.story-label{left:auto;right:6%;top:24%;width:30%}
.story-label h1{font-size:clamp(48px,4.4vw,88px);line-height:.94;letter-spacing:-.04em}
.story-punch{margin:.04em 0 0;padding:0;background:transparent;transform:none;border-radius:0;font-size:1em;line-height:inherit}
@media(max-width:820px) and (orientation:portrait){
 .story-label{left:5%;right:5%;top:calc(var(--panel-top) + 22px);width:auto}
 .story-label h1{font-size:clamp(38px,10vw,64px)}
}
@media(max-height:600px) and (orientation:landscape){
 .story-label{right:4%;top:27%;width:38%}
 .story-label h1{font-size:clamp(30px,4.6vw,52px)}
}

/* Larger type in the existing family and a compact corner signature. */
.story-label{top:20%;right:5%;width:32%}
.story-label h1{font-family:var(--ui-font,'Inter Tight',Arial,sans-serif);font-size:clamp(72px,6.2vw,132px);font-weight:800;line-height:.96;letter-spacing:-.04em}
.story-label h1>span{display:block;white-space:nowrap}
@media(max-width:820px) and (orientation:portrait){
 .story-label{left:5%;right:5%;top:calc(var(--panel-top) + 18px);width:auto}
 .story-label h1{font-size:clamp(44px,14vw,82px);line-height:.98}
}
@media(max-height:600px) and (orientation:landscape){
 .story-label{right:4%;top:23%;width:39%}
 .story-label h1{font-size:clamp(36px,6.3vw,80px)}
}

.story-signature{position:static;margin:24px 0 0;font-family:var(--ui-font,'Inter Tight',Arial,sans-serif);font-size:clamp(18px,1.25vw,24px);font-weight:450;line-height:1.4;letter-spacing:-.015em;color:var(--ink)}
@media(max-width:820px) and (orientation:portrait){.story-signature{margin-top:18px;font-size:18px}}
@media(max-height:600px) and (orientation:landscape){.story-signature{margin-top:14px;font-size:16px}}

/* Stable desktop builder: tabs and actions keep their coordinates across parts. */
@media(min-width:1101px) and (min-height:601px){
 .builder{top:clamp(120px,12vh,150px);bottom:88px;height:auto;max-height:none;transform:none;display:flex;flex-direction:column;overflow:hidden;transition:opacity .25s,visibility .25s}
 .builder.visible{transform:none}
 .builder-top,.builder .tabs{flex:none}
 .builder [role=tabpanel]{display:flex;flex-direction:column;flex:1;min-height:0}
 .builder .part-content{display:block;flex:1;min-height:0;overflow-y:auto;overscroll-behavior-y:contain;scrollbar-width:thin;scrollbar-color:#11130d55 transparent;scrollbar-gutter:stable;padding-right:6px}
 .builder .primary{position:static;flex:none;margin-top:20px}
 .builder .saved{display:block;flex:none;min-height:18px;max-height:18px;margin:8px 0 0;line-height:18px;overflow:hidden}
}

.story-graffiti{position:absolute;right:32px;bottom:88px;width:clamp(140px,11.5vw,219px);height:auto;pointer-events:none;opacity:0;visibility:hidden}
@media(max-width:820px) and (orientation:portrait){.story-graffiti{right:16px;bottom:76px;width:140px}}
@media(max-height:600px) and (orientation:landscape){.story-graffiti{right:20px;bottom:64px;width:130px}}

.flow-graffiti{position:absolute;height:auto;transform:rotate(-20deg);pointer-events:none;opacity:0;visibility:hidden}
.flow-graffiti--hero{right:5%;top:17%;width:clamp(172px,13.8vw,265px)}
@media(max-width:820px) and (orientation:portrait){
 .flow-graffiti--hero{right:7%;top:16%;width:126px}
}
@media(max-height:600px) and (orientation:landscape){
 .flow-graffiti--hero{right:8%;top:20%;width:126px}
}

.complete h2{white-space:nowrap}

/* Phone composition: a larger product stage above a fixed, thumb-friendly sheet. */
@media(max-width:820px) and (orientation:portrait){
 .reference-layout .headline-top{top:12%;font-size:clamp(60px,17vw,120px)}
 .reference-layout .headline-bottom{bottom:27%;font-size:clamp(52px,14.5vw,108px)}
 .hero-copy{left:16px;right:16px;bottom:calc(70px + env(safe-area-inset-bottom))}
 .hero-copy p{font-size:15px;line-height:1.4;margin-bottom:14px;max-width:29ch}
 .hero-copy .hero-cta{height:54px;min-height:54px;font-size:16px}
 .builder{left:0;right:0;top:var(--panel-top);bottom:calc(64px + env(safe-area-inset-bottom));padding:10px 16px 12px;border:0;border-top:1px solid var(--ui-border);border-radius:20px 20px 0 0;background:var(--surface)}
 .builder-top{margin:0 0 2px;min-height:36px}
 .builder-top button{min-height:36px}
 .builder .tabs{margin:0 0 14px}
 .builder .tabs button{min-height:44px;font-size:14px}
 .builder h2{font-size:30px;line-height:1.05;margin:0 0 8px}
 .builder .part-note{font-size:15px;line-height:1.35;margin-bottom:14px}
 .product-options,.truck-options{grid-auto-columns:112px;gap:10px}
 .product-options button{min-height:136px;padding:6px 5px 10px}
 .product-options img,.truck-options img{height:78px}
 .deck-options img{height:86px}
 .product-options strong{font-size:14px}
 .product-options small{font-size:12px}
 .builder .primary{height:52px;min-height:52px;font-size:15px;margin-top:12px}
 .part-content{scrollbar-gutter:stable}
 .builder .saved:empty{display:none}
 .story-label{top:calc(var(--panel-top) + 22px)}
 .story-label h1{font-size:clamp(42px,12.8vw,80px)}
 .story-signature{margin-top:20px;font-size:18px}
 .complete{left:12px;right:12px;top:var(--panel-top);bottom:calc(124px + env(safe-area-inset-bottom));padding:18px 16px;border-radius:18px}
 .complete h2{font-size:clamp(30px,9vw,42px);margin:12px 0}
 .complete p{font-size:15px;line-height:1.5}
 .complete #summary{margin:14px 0;padding:12px 0;font-size:14px;line-height:1.6}
 .complete .primary{min-height:52px;font-size:15px}
 .model-view-controls{bottom:calc(66px + env(safe-area-inset-bottom));font-size:12px;gap:18px}
 footer .caption{display:none}
 footer .playback{margin-left:auto;font-size:12px}
 .flow-graffiti--hero{right:8%;top:18%;width:112px}
 .story-graffiti{right:18px;bottom:82px;width:128px}
}
@media(max-width:820px) and (orientation:portrait) and (max-height:700px){
 .hero-copy p{display:none}
 .reference-layout .headline-top{top:14%;font-size:17vw}
 .reference-layout .headline-bottom{bottom:27%;font-size:14vw}
 .builder h2{font-size:27px}
 .builder .part-note{font-size:14px}
 .builder-top{min-height:32px}
 .builder-top button{min-height:32px}
 .builder .tabs{margin-bottom:10px}
 .product-options,.truck-options{grid-auto-columns:104px}
 .product-options button{min-height:125px}
 .product-options img,.truck-options img{height:68px}
 .deck-options img{height:76px}
 .story-label h1{font-size:clamp(36px,12vw,48px)}
 .complete{padding:12px 14px}
 .complete h2{font-size:30px;margin:8px 0}
 .complete>span{font-size:10px}
 .complete #summary{margin:10px 0;padding:8px 0;font-size:13px}
 .complete .primary{min-height:48px;height:48px}
}

@media(max-width:820px) and (orientation:portrait){
 .reference-layout .headline-bottom{bottom:22%;font-size:clamp(26px,8.2vw,52px);display:flex;align-items:baseline;gap:.20em;white-space:nowrap}
 .complete{bottom:calc(68px + env(safe-area-inset-bottom));display:flex;flex-direction:column;overflow:hidden}
 .complete>span,.complete h2,.complete .primary,.complete .edit,.complete .saved{flex:none}
 .complete #summary{flex:1;min-height:0;overflow-y:auto;scrollbar-width:thin;scrollbar-color:#11130d55 transparent}
 .model-view-controls{left:16px;bottom:max(12px,env(safe-area-inset-bottom));transform:none;gap:0}
 .model-view-controls>span{display:none}
}
@media(max-width:820px) and (orientation:portrait) and (max-height:700px){
 .builder-top{position:absolute;top:10px;right:12px;min-height:0;margin:0}
 .builder-top>span{display:none}
 .builder-top button{min-height:44px;padding:8px 4px;font-size:12px}
 .builder .tabs{padding-right:68px}
 .builder .tabs small{display:none}
 .builder .tabs button{font-size:13px}
 .complete>span{display:none}
 .complete h2{margin:0 0 8px}
 .complete #summary{margin:0 0 8px;padding:8px 0}
 .complete .primary{margin-top:0}
 .complete .edit{margin-top:8px}
}
@media(max-width:820px) and (orientation:portrait) and (max-height:700px),(max-height:600px) and (orientation:landscape){
 .product-options,.truck-options{grid-template-columns:none;grid-auto-flow:column;grid-auto-columns:164px;gap:8px;overflow-x:auto;scroll-snap-type:x mandatory;padding:2px 2px 8px}
 .product-options button{display:grid;grid-template-columns:50px minmax(0,1fr);grid-template-rows:1fr 1fr;column-gap:8px;min-height:80px;height:80px;padding:8px;text-align:left;scroll-snap-align:start}
 .product-options img,.deck-options img,.truck-options img{grid-row:1 / 3;width:50px;height:62px;object-fit:contain}
 .product-options strong{align-self:end;margin:0;text-align:left;font-size:13px;line-height:1.2}
 .product-options small{align-self:start;margin:4px 0 0;text-align:left;font-size:11px;line-height:1.25}
}

/* Phone configurator: the complete catalogue and action share one stable sheet. */
@media(max-width:480px) and (orientation:portrait){
 .viewport{bottom:auto;height:100dvh}
 .builder{bottom:max(12px,env(safe-area-inset-bottom));padding:8px 16px 12px;border-radius:20px 20px 0 0}
 .builder-top{position:absolute;top:8px;right:16px;min-height:0;margin:0}
 .builder-top>span{display:none}
 .builder-top button{min-height:44px;padding:8px 0 8px 8px;font-size:12px}
 .builder .tabs{padding-right:68px;margin:0 0 12px;min-height:44px}
 .builder .tabs small{display:none}
 .builder .tabs button{font-size:14px}
 .builder h2{font-size:28px;line-height:1.1;margin:0 0 12px}
 .builder .part-note:not(#truck-spec){display:none}
 .builder .part-content{padding:0 2px 2px;scrollbar-gutter:auto}
 .builder .primary{margin-top:10px;min-height:52px;height:52px}
 .builder .spec{margin:8px 0 0;padding:8px 0;min-height:36px}
 .builder .spec span{font-size:10px;letter-spacing:0}
 .builder .spec strong{font-size:14px}
 .builder #truck-spec{font-size:12px;margin:8px 0 0}
 .builder .compact-field{margin:10px 0 0}
 .builder legend{margin-bottom:6px;font-size:13px}
 .builder .segments button{min-height:44px}
 .viewport[data-view=builder] footer{top:82px;bottom:auto;left:16px;right:auto}
 .viewport[data-view=builder] #scroll-hint{display:none}
 .viewport[data-view=builder] .playback button{background:var(--surface)}
}
@media(max-width:480px) and (orientation:portrait) and (min-height:701px){
 .builder .product-options{grid-template-columns:repeat(3,minmax(0,1fr));grid-auto-flow:row;grid-auto-columns:auto;gap:8px;overflow:visible;margin:0;padding:2px;scroll-snap-type:none}
 .builder .product-options button{display:grid;grid-template-columns:minmax(0,1fr);grid-template-rows:minmax(0,1fr) auto auto;gap:2px;height:clamp(104px,15dvh,124px);min-height:0;padding:6px 4px;border-radius:12px;text-align:center}
 .builder .product-options img{grid-row:auto;width:100%;height:100%;min-height:0;object-fit:contain}
 .builder .product-options strong{margin:0;align-self:auto;text-align:center;font-size:13px;line-height:1.2}
 .builder .product-options small{margin:0;align-self:auto;text-align:center;font-size:11px;line-height:1.2;white-space:nowrap}
 .builder .truck-options{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media(max-width:480px) and (orientation:portrait) and (min-height:701px){
 .builder .wheel-options button{height:clamp(100px,12dvh,110px)}
 .builder .compact-field{margin-top:8px}
}

@media(max-width:480px) and (orientation:portrait){
 .complete{bottom:auto;max-height:calc(100% - var(--panel-top) - 76px - env(safe-area-inset-bottom));overflow-y:auto}
 .complete #summary{flex:none;margin:12px 0;padding:12px 0}
}

@media(max-width:820px) and (orientation:portrait){
 .builder [role=tabpanel] h2{display:none}
}

.expand-board{position:absolute;right:16px;top:82px;width:44px;height:44px;display:grid;place-items:center;background:var(--surface);border:1px solid var(--ui-border,#11130d26);border-radius:12px;z-index:4}
.board-viewer{position:fixed;inset:0;width:100vw;height:100dvh;max-width:none;max-height:none;margin:0;padding:0;border:0;background:var(--surface);color:var(--ink);overflow:hidden}
.board-viewer::backdrop{background:var(--surface)}
.viewer-bar{position:absolute;z-index:5;top:max(16px,env(safe-area-inset-top));left:16px;right:16px;display:flex;align-items:center;justify-content:space-between;font-size:16px;font-weight:600}
.viewer-bar button{display:grid;place-items:center;min-width:44px;min-height:44px;border:1px solid #11130d26;border-radius:12px;background:var(--surface)}
.board-viewer #scene{touch-action:none}
.board-viewer .model-view-controls{left:50%;bottom:max(20px,env(safe-area-inset-bottom));transform:translateX(-50%);gap:12px}
.board-viewer .model-view-controls>span{display:block}
@media(max-width:480px) and (orientation:portrait){
 .reference-layout .headline-bottom{display:none}
 .hero-copy p{font-size:14px;line-height:1.4;max-width:30ch;margin-bottom:12px}
}

.hero-copy .hero-tagline{display:none}
@media(max-width:480px) and (orientation:portrait){
 .hero-copy .hero-tagline{display:block;font-family:var(--ui-font);font-size:clamp(23px,6.5vw,28px);font-weight:800;line-height:1;letter-spacing:-.03em;margin:0 0 10px;max-width:none}
}

@media(min-width:821px){
 .expand-board{display:none}
}