/* Tools only: reserve the fixed header once, then keep navigation subordinate. */
@layer pcba-polish {
 html body main#assembly-tools{padding-top:68px!important}
 html body main .site-ia-breadcrumb{font-size:13px!important;line-height:1.6!important;padding:0!important;margin:0 0 14px!important;max-width:none!important;color:#63696d!important}
 html body main .site-ia-breadcrumb ol{gap:6px 10px!important;line-height:1.6!important}
 html body main .site-ia-breadcrumb a{color:#63696d!important;text-decoration:none!important}
 html body main .site-ia-breadcrumb [aria-current="page"]{color:#252927!important;font-weight:500!important}
 html body main .site-ia-breadcrumb a:hover{color:#252927!important;text-decoration:underline!important;text-underline-offset:3px!important}
 html body main .site-ia-breadcrumb a:focus-visible{outline:2px solid #63696d!important;outline-offset:4px!important;border-radius:2px!important}
 html body main .ux-page-nav{padding:0!important;margin:12px 0 24px!important}
 html body main .ux-page-nav summary{min-height:44px!important;padding:10px 16px!important}
 html body main .ux-page-nav[open] nav{padding:0 16px 14px!important}
 html body main#assembly-tools button,html body main#assembly-tools .link-button,html body main#assembly-tools .choose-file{min-height:44px!important}
 html body main#calculator-main>.site-ia-breadcrumb{margin:0 auto 0!important;max-width:1000px!important;padding:0 24px!important}
 html body main#calculator-main>.est-wrap{--e-accent:#252927!important;margin-top:24px!important}
 html body main#calculator-main .est-btn:hover{background:#414743!important}
 html body main#calculator-main .est-btn.ghost:hover{background:#f5f6f5!important;color:#252927!important}
 html body main#calculator-main input:focus,html body main#calculator-main select:focus{border-color:#63696d!important;box-shadow:0 0 0 3px rgba(37,41,39,.15)!important}
 html body main#calculator-main .est-drop:hover,html body main#calculator-main .est-drop.drag{border-color:#63696d!important;background:#f5f6f5!important}
 html body.page-gerber main>.site-ia-breadcrumb{margin:0 24px 16px!important}
 html body.page-gerber main p.note a{color:#48534e!important}
 html body.page-gerber #gerber-mode-2d[aria-pressed="true"]{color:#252927!important}
 @media(max-width:600px){
  html body main#assembly-tools{padding-top:64px!important}
  html body main#assembly-tools>.site-ia-breadcrumb{margin-bottom:12px!important}
  html body main .site-ia-breadcrumb ol{display:flex!important;flex-wrap:wrap!important}
  html body main .site-ia-breadcrumb li{display:inline-flex!important;max-width:100%!important}
  html body main .ux-page-nav{margin:12px 0 20px!important}
  html body main#calculator-main>.site-ia-breadcrumb{padding:0 16px!important}
 }
}
@layer pcba-polish {
 html body main .pp-tool-flow{display:grid!important;grid-template-columns:repeat(3,minmax(0,1fr))!important;list-style:none!important;gap:0!important;margin:0 0 28px!important;padding:0!important;background:#f8f8f5!important;border:1px solid #e6e7e2!important;border-radius:14px!important;overflow:hidden!important;box-sizing:border-box!important}
 html body main .pp-tool-flow li{display:flex!important;align-items:center!important;gap:12px!important;min-width:0!important;padding:18px 20px!important;position:relative!important;margin:0!important;line-height:1.4!important}
 html body main .pp-tool-flow li+li{border-left:1px solid #e6e7e2!important}
 html body main .pp-flow-icon{display:flex!important;align-items:center!important;justify-content:center!important;flex:0 0 40px!important;width:40px!important;height:40px!important;background:#fff!important;color:#806425!important;border:1px solid #e8e0cd!important;border-radius:10px!important}
 html body main .pp-tool-flow small{display:block!important;font-size:10px!important;font-weight:600!important;letter-spacing:1px!important;color:#858981!important;margin-bottom:3px!important}
 html body main .pp-tool-flow strong{display:block!important;font-size:13px!important;font-weight:550!important;color:#303731!important;letter-spacing:0!important;overflow-wrap:anywhere!important}
 html body main#assembly-tools .tool-card{border-color:#e2e4de!important;border-radius:16px!important;transition:border-color .18s,box-shadow .18s!important}
 html body main#assembly-tools .tool-card:hover{border-color:#b5a67f!important;box-shadow:0 8px 24px rgba(37,41,39,.05)!important}
 html body main#assembly-tools .tool-number{color:#806425!important;background:#f7f2e6!important;border:1px solid #e8e0cd!important;border-radius:6px!important;padding:4px 8px!important}
 @media(max-width:600px){
  html body main .pp-tool-flow li{flex-direction:column!important;align-items:flex-start!important;gap:8px!important;padding:12px 10px!important}
  html body main .pp-flow-icon{width:30px!important;height:30px!important;flex-basis:30px!important;border-radius:8px!important}
  html body main .pp-flow-icon svg{width:18px!important;height:18px!important}
  html body main .pp-tool-flow strong{font-size:11px!important}
 }
}
/* Assembly pages declare this layer first; important declarations there win. */
@layer assembly-tools {
 html body main#assembly-tools{padding-top:68px!important}
 html body main#assembly-tools .ux-page-nav{padding:0!important}
 html body main#assembly-tools .ux-page-nav summary{min-height:44px!important}
 html body main#assembly-tools button,html body main#assembly-tools .link-button,html body main#assembly-tools .choose-file{min-height:44px!important}
 @media(max-width:600px){html body main#assembly-tools{padding-top:64px!important}}
}
@layer pcba-polish {
 html body.page-gerber #board-view-2d[aria-pressed="true"],html body.page-gerber #board-view-3d[aria-pressed="true"]{color:#252927!important}
 html body main#calculator-main .est-head{margin-bottom:24px!important}
}
@layer assembly-tools {
 html body main#assembly-tools button.text-button{min-height:44px!important}
}
/* A continuous horizontal ribbon, rather than three separate icon cards. */
@layer pcba-polish {
 html body main .site-ia-breadcrumb{display:block!important;background:#f5f5f2!important;border-top:1px solid #e7e8e3!important;border-bottom:1px solid #e7e8e3!important;padding:10px 16px!important;box-sizing:border-box!important;min-height:44px!important;overflow-x:auto!important;overflow-y:hidden!important;scrollbar-width:thin!important;border-radius:0!important}
 html body main .site-ia-breadcrumb ol{display:flex!important;flex-wrap:nowrap!important;align-items:center!important;width:max-content!important;max-width:none!important;min-height:22px!important;margin:0!important;padding:0!important;gap:12px!important}
 html body main .site-ia-breadcrumb ol li,html body main .site-ia-breadcrumb ol li a,html body main .site-ia-breadcrumb ol li span{font-size:12px!important;line-height:22px!important;white-space:nowrap!important;flex-shrink:0!important}
 html body main .site-ia-breadcrumb ol li+li::before{content:'›'!important;color:#92968f!important;margin-right:12px!important}
 html body main#calculator-main>.site-ia-breadcrumb{padding:10px 16px!important;margin:0 auto!important;max-width:1000px!important}
 html body main .pp-tool-flow{display:flex!important;flex-wrap:nowrap!important;align-items:stretch!important;background:#252927!important;border:0!important;border-radius:3px!important;box-shadow:none!important;overflow-x:auto!important;overflow-y:hidden!important;scrollbar-width:thin!important}
 html body main .pp-tool-flow li{flex:1 0 0!important;display:flex!important;flex-direction:row!important;align-items:center!important;gap:12px!important;min-height:60px!important;padding:14px 20px!important;background:none!important;border:0!important}
 html body main .pp-tool-flow li+li{border:0!important;padding-left:32px!important}
 html body main .pp-tool-flow li+li::before{content:''!important;position:absolute!important;left:-5px!important;top:50%!important;width:10px!important;height:10px!important;border-top:1px solid #7c827a!important;border-right:1px solid #7c827a!important;transform:translateY(-50%) rotate(45deg)!important}
 html body main .pp-flow-icon{flex:0 0 24px!important;width:24px!important;height:24px!important;border:0!important;background:none!important;border-radius:0!important;color:#ddc383!important}
 html body main .pp-flow-icon svg{width:24px!important;height:24px!important}
 html body main .pp-tool-flow li>span:last-child{display:flex!important;align-items:center!important;gap:10px!important;min-width:0!important}
 html body main .pp-tool-flow small{display:inline!important;margin:0!important;color:#cdbb8b!important;font-size:10px!important;line-height:1!important}
 html body main .pp-tool-flow strong{color:#f4f4ef!important;font-size:13px!important;line-height:1.4!important;overflow-wrap:normal!important}
 @media(max-width:600px){
  html body main .pp-tool-flow{scroll-snap-type:x proximity!important}
  html body main .pp-tool-flow li{min-width:170px!important;min-height:54px!important;padding:12px 14px!important;scroll-snap-align:start!important}
  html body main .pp-tool-flow li+li{padding-left:24px!important}
  html body main .pp-flow-icon,html body main .pp-flow-icon svg{width:20px!important;height:20px!important;flex-basis:20px!important}
  html body main .pp-tool-flow li>span:last-child{gap:7px!important}
  html body main .pp-tool-flow strong{font-size:12px!important}
 }
}
@layer pcba-polish {
 html body main .pp-tool-flow li{box-sizing:border-box!important}
 @media(max-width:600px){
  html body main .pp-tool-flow li{min-width:0!important;min-height:60px!important;padding:12px 10px!important}
  html body main .pp-tool-flow li+li{padding-left:18px!important}
  html body main .pp-flow-icon{display:none!important}
  html body main .pp-tool-flow li>span:last-child{gap:6px!important}
  html body main .pp-tool-flow strong{font-size:11px!important}
 }
}
/* Final direction: a slim charcoal racetrack with fully rounded ends. */
@layer pcba-polish {
 html body main .pp-tool-flow{border-radius:999px!important}
 html body main .pp-tool-flow li{min-height:44px!important;padding:8px 18px!important}
 html body main .pp-tool-flow li+li{padding-left:28px!important}
 html body main .pp-flow-icon,html body main .pp-flow-icon svg{width:18px!important;height:18px!important;flex-basis:18px!important}
 html body main .pp-tool-flow strong{font-size:12px!important}
 html body main .pp-tool-flow li+li::before{width:7px!important;height:7px!important;left:-3px!important}
 @media(max-width:600px){
  html body main .pp-tool-flow li{min-height:44px!important;padding:7px 12px!important}
  html body main .pp-tool-flow li+li{padding-left:18px!important}
  html body main .pp-tool-flow li>span:last-child{gap:5px!important}
  html body main .pp-tool-flow strong{font-size:10px!important;line-height:1.4!important}
  html body main .pp-tool-flow small{font-size:9px!important}
 }
}
/* Match the breadcrumb to the same slim dark racetrack. */
@layer pcba-polish {
 html body main .site-ia-breadcrumb{background:#252927!important;border:0!important;border-radius:999px!important;min-height:40px!important;padding:9px 20px!important;color:#c9ceca!important}
 html body main#calculator-main>.site-ia-breadcrumb{padding:9px 20px!important}
 html body main .site-ia-breadcrumb a,html body main .site-ia-breadcrumb ol li a{color:#c9ceca!important}
 html body main .site-ia-breadcrumb [aria-current="page"],html body main .site-ia-breadcrumb ol li [aria-current="page"]{color:#fff!important;font-weight:550!important}
 html body main .site-ia-breadcrumb a:hover{color:#fff!important;text-decoration:underline!important}
 html body main .site-ia-breadcrumb a:focus-visible{outline-color:#ddc383!important;outline-offset:2px!important}
 html body main .site-ia-breadcrumb ol li+li::before{color:#b5a679!important}
}
@layer pcba-polish {
 html body main#calculator-main>.site-ia-breadcrumb,html body main#assembly-tools>.site-ia-breadcrumb{width:100%!important}
}
/* Breadcrumb length follows its contents; only the viewport sets a limit. */
@layer pcba-polish {
 html body main .site-ia-breadcrumb{width:max-content!important;max-width:100%!important;min-height:32px!important;padding:5px 16px!important;scrollbar-width:none!important}
 html body main .site-ia-breadcrumb::-webkit-scrollbar{display:none!important}
 html body main#calculator-main>.site-ia-breadcrumb{width:max-content!important;max-width:min(100%,1000px)!important;padding:5px 16px!important;margin-left:max(0px,calc((100% - 1000px)/2))!important;margin-right:0!important}
 html body main#assembly-tools>.site-ia-breadcrumb{width:max-content!important;max-width:100%!important}
 html body.page-gerber main>.site-ia-breadcrumb{width:max-content!important;max-width:calc(100% - 48px)!important}
 @media(max-width:600px){
  html body main .site-ia-breadcrumb ol li:not(:first-child):not(:last-child){display:none!important}
 }
}