/* RKCadTools — Toolkit Blue, Signal Amber and structural neutrals.
   Layout follows the RK PDF Annotator template. */
@font-face{font-family:Inter;font-style:normal;font-weight:100 900;font-display:swap;src:url('./InterVariable.woff2') format('woff2')}

:root{
  --brand-primary:#1F6FB8;--brand-primary-dark:#185A96;--brand-tint:#EAF2F9;
  --brand-secondary:#D08A2B;--amber-tint:#FCF3E5;--amber-ink:#81551B;
  --ink-900:#1A1F2A;--ink-700:#3D4655;--ink-500:#6B7280;--ink-300:#B4BAC4;
  --surface-50:#F7F8FA;--surface-0:#FFFFFF;--line:#DDE1E7;--danger:#C53636;
  --ink:var(--ink-900);--muted:var(--ink-500);
  color-scheme:light;
  font-family:Inter,ui-sans-serif,-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;
  font-size:14px;line-height:1.55;color:var(--ink);background:var(--surface-50)
}
*{box-sizing:border-box}
body{margin:0}
main{max-width:1220px;margin:auto;padding:0 36px 26px}
button,input,select,textarea{font:inherit}
button,a,input,select,summary,[role=button]{touch-action:manipulation}
button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible,summary:focus-visible,[tabindex]:focus-visible{outline:3px solid var(--brand-primary);outline-offset:4px}
a{color:var(--brand-primary)}
a:hover{text-decoration:underline}

button,.button{
  cursor:pointer;border:1px solid var(--brand-primary);border-radius:6px;padding:11px 18px;
  background:var(--brand-primary);color:#fff;font-weight:500;letter-spacing:-.01em;line-height:1.4;
  display:inline-flex;align-items:center;justify-content:center;gap:12px;text-decoration:none;
  transition:background .15s,border-color .15s
}
button:hover,.button:hover{background:var(--brand-primary-dark);border-color:var(--brand-primary-dark);text-decoration:none}
button:disabled{cursor:not-allowed;opacity:.5}
button:disabled:hover{background:var(--brand-primary);border-color:var(--brand-primary)}
.secondary{background:var(--surface-0);border-color:var(--ink-300);color:var(--ink);padding:10px 15px}
.secondary:hover{background:#F0F5FA;border-color:var(--brand-primary)}
.secondary:disabled:hover{background:var(--surface-0);border-color:var(--ink-300)}
.danger{color:var(--danger)}
.danger:hover:not(:disabled){border-color:var(--danger);background:#FCF0F0}
.text-button{background:transparent;border-color:transparent;color:var(--brand-primary);padding:10px 0}
.text-button:hover,.text-button:disabled:hover{background:transparent;border-color:transparent;color:var(--brand-primary-dark);text-decoration:underline}

/* Masthead */
.masthead{
  display:flex;justify-content:space-between;gap:20px;align-items:center;min-height:76px;
  background:var(--surface-0);border-top:3px solid var(--brand-primary);border-bottom:1px solid var(--line);
  margin:0 -36px;padding:16px 36px
}
.wordmark{display:flex;align-items:center;color:var(--ink);text-decoration:none;font-weight:600}
.wordmark:hover{text-decoration:none}
.brandWordmark{display:block;flex:none;max-width:100%}
.productName{font-size:14px;letter-spacing:-.01em;border-left:1px solid var(--ink-300);padding-left:18px}
.productName small{display:block;font-size:9px;letter-spacing:1px;font-weight:500;color:var(--muted);margin-top:1px}
.privacy{display:flex;align-items:center;gap:7px;font-size:12px;color:var(--ink-700)}
.privacy span{font-size:8px;color:var(--brand-primary)}

/* Intro */
.intro{padding:44px 0 28px}
.eyebrow{font-size:10px;font-weight:600;letter-spacing:1.7px;text-transform:uppercase;color:var(--brand-primary);margin:0 0 15px}
h1{font-size:clamp(30px,3.7vw,46px);line-height:1.17;letter-spacing:-.02em;font-weight:600;margin:0 0 18px}
h1>span{color:var(--brand-primary)}
h2{font-size:21px;line-height:1.3;letter-spacing:-.02em;font-weight:600;margin:0 0 4px}
h3{font-size:14px;font-weight:600;letter-spacing:-.01em;margin:0 0 6px}
p{margin:6px 0 14px}
.intro>p:last-child{color:var(--ink-700);font-size:15px;line-height:1.75;max-width:700px;margin:0}

/* Cards */
.card{background:var(--surface-0);border:1px solid var(--line);border-radius:8px;padding:26px;margin-bottom:16px;box-shadow:0 1px 3px #00000014}
.section-title{display:flex;gap:14px;margin-bottom:20px}
.section-title p{font-size:12px;color:var(--muted);margin:0}
.section-title>div{flex:1;min-width:0}
.section-title .page-count{margin-left:auto;align-self:flex-end;white-space:nowrap;font-size:12px;font-weight:600;color:var(--ink-700)}
.step{
  border:1px solid var(--brand-secondary);background:var(--amber-tint);color:var(--amber-ink);
  font-size:11px;font-weight:600;width:29px;height:29px;display:grid;place-items:center;border-radius:6px;flex-shrink:0
}

/* Drop zone (styled as the annotator file box) */
.dropzone{
  border:1.5px dashed var(--ink-300);background:var(--surface-50);border-radius:8px;padding:30px 20px;
  display:flex;flex-direction:column;align-items:center;gap:6px;text-align:center;cursor:pointer;
  transition:background .15s,border-color .15s
}
.dropzone:hover,.dropzone.is-dragging{background:var(--brand-tint);border-color:var(--brand-primary)}
.dropzone .file-kind{font-size:9px;color:var(--brand-primary);letter-spacing:1.6px;font-weight:600}
.drop-icon{width:44px;height:44px;margin:6px 0 2px;fill:none;stroke:var(--brand-primary);stroke-width:1.25;stroke-linecap:round;stroke-linejoin:round}
.dropzone>strong{font-size:17px;font-weight:600;letter-spacing:-.01em}
.dropzone>span:not(.file-kind){font-size:11px;color:var(--muted)}
.dropzone button{pointer-events:none;margin-top:10px}

/* Form controls */
label{font-size:12px;font-weight:600;display:block;color:var(--ink-700)}
input,select,textarea{display:block;width:100%;border:1px solid var(--ink-300);border-radius:6px;background:var(--surface-0);color:var(--ink);padding:9px 10px;margin-top:5px;min-height:39px}
input:hover,select:hover,textarea:hover{border-color:var(--brand-primary)}
input[type=checkbox]{width:16px;height:16px;min-height:0;margin:0;accent-color:var(--brand-primary)}
.hint{font-size:11px;color:var(--muted);font-weight:400}
details{border-top:1px solid var(--line);margin-top:14px;padding-top:13px}
summary{cursor:pointer;font-size:12px;font-weight:600;color:var(--ink-700);padding:2px 0}
summary:hover{color:var(--brand-primary)}
details[open]>summary{margin-bottom:14px}

/* Page toolbar */
.tool-bar{
  position:sticky;top:0;z-index:10;display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;
  padding:10px 12px;margin-bottom:18px;border:1px solid var(--line);border-radius:8px;background:#FFFFFFF2;
  box-shadow:0 1px 3px #00000014
}
.toolbar-actions{display:flex;flex-wrap:wrap;align-items:center;gap:8px}
.toolbar-actions button{padding:7px 12px;font-size:12px}
.toolbar-actions .text-button{padding:7px 4px}

/* Page grid */
.page-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:14px}
.page-card{position:relative;min-width:0;padding:10px;border:1px solid var(--line);border-radius:8px;background:var(--surface-0);cursor:grab;transition:border-color .15s,box-shadow .15s}
.page-card:hover{border-color:var(--ink-300)}
.page-card:active{cursor:grabbing}
.page-card.is-selected{border-color:var(--brand-primary);box-shadow:0 0 0 2px #1F6FB833}
.page-preview{display:grid;place-items:center;height:228px;overflow:hidden;border-radius:6px;background:var(--surface-50);border:1px solid var(--line);font-size:11px;color:var(--muted)}
.page-preview canvas{display:block;max-width:100%;max-height:218px;box-shadow:0 1px 5px #1A1F2A20;background:#fff}
.page-grid{position:relative}
.page-card.is-dragging{opacity:.42;outline:2px dashed var(--brand-primary);outline-offset:2px}
.page-card.in-group{border-color:var(--brand-primary);background:var(--brand-tint);box-shadow:0 0 0 2px #1F6FB855}
.group-tag{display:none;position:absolute;top:16px;left:16px;z-index:2;padding:2px 7px;border-radius:4px;background:var(--brand-primary);color:#fff;font-size:10px;font-weight:600;letter-spacing:.2px;pointer-events:none}
.page-card.in-group .group-tag{display:block}
.drop-marker{position:absolute;z-index:5;width:3px;margin-left:-1.5px;border-radius:2px;background:var(--brand-primary);pointer-events:none;box-shadow:0 0 0 2px #FFFFFFCC}
.drop-marker::before,.drop-marker::after{content:"";position:absolute;left:50%;width:9px;height:9px;margin-left:-4.5px;border-radius:50%;background:var(--brand-primary);box-shadow:0 0 0 2px #FFFFFFCC}
.drop-marker::before{top:-5px}
.drop-marker::after{bottom:-5px}
.marquee{position:absolute;z-index:1000;border:1px solid var(--brand-primary);background:#1F6FB81F;border-radius:2px;pointer-events:none}
.drag-ghost{position:absolute;top:-1000px;left:-1000px;padding:8px 12px;border-radius:6px;background:var(--brand-primary);color:#fff;font:600 12px/1.2 Inter,system-ui,sans-serif;box-shadow:0 4px 14px #1A1F2A40}
.drag-hint{margin:-6px 0 12px}
.drag-hint kbd{display:inline-block;padding:0 5px;border:1px solid var(--ink-300);border-bottom-width:2px;border-radius:4px;background:var(--surface-0);font:inherit;font-size:10px;color:var(--ink-700)}
.group-status{margin:0 0 12px;padding:9px 12px;border-left:3px solid var(--brand-primary);border-radius:6px;background:var(--brand-tint);font-size:12px;color:var(--ink-700)}
.render-error{padding:16px;color:var(--danger);font-size:11px;text-align:center}
.page-meta{display:flex;justify-content:space-between;align-items:baseline;gap:8px;margin:10px 1px 7px}
.page-meta strong{font-size:12px;font-weight:600}
.page-meta span{overflow:hidden;color:var(--muted);font-size:10px;text-overflow:ellipsis;white-space:nowrap}
.page-controls{display:grid;grid-template-columns:32px 1fr 32px 32px;gap:5px;align-items:center}
.page-controls button{height:32px;padding:0;border-color:var(--line);background:var(--surface-0);color:var(--ink-700);font-size:15px}
.page-controls button:hover:not(:disabled){border-color:var(--brand-primary);background:var(--brand-tint);color:var(--brand-primary)}
.page-controls button:disabled:hover{border-color:var(--line);background:var(--surface-0)}
.page-controls label{display:flex;align-items:center;justify-content:center;gap:6px;min-height:32px;color:var(--ink-700);font-size:11px;font-weight:500}

/* Download card */
.run-card{border-left:3px solid var(--brand-primary)}
.export-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}
.export-grid article{display:flex;flex-direction:column;align-items:stretch;min-width:0;padding:18px;border:1px solid var(--line);border-radius:8px;background:var(--surface-50)}
.export-grid p{flex:1;font-size:12px;color:var(--muted);margin:0 0 16px}
.export-grid input{margin-bottom:5px}
.export-grid small{display:block;margin-bottom:14px}
.actions{display:flex;align-items:center;flex-wrap:wrap;gap:12px}
progress{width:100%;height:7px;margin-top:18px;accent-color:var(--brand-primary)}
.run-card #status{margin:16px 0 0;font-size:12px;color:var(--muted)}
.error,#status.error,#boot.error{color:var(--danger);background:#FCF0F0;border:1px solid #E8BBBB;padding:12px;border-radius:6px}
.downloads{margin-top:20px;padding:20px 0 0;border-top:3px solid var(--brand-primary)}
.downloads .eyebrow{margin-bottom:8px}
.downloads h3{font-size:18px;margin-bottom:14px}
#download-links a{display:inline-flex;align-items:center;gap:8px;padding:10px 15px;border:1px solid var(--brand-primary);border-radius:6px;background:var(--brand-primary);color:#fff;font-size:12px;font-weight:500;text-decoration:none}
#download-links a:hover{background:var(--brand-primary-dark);border-color:var(--brand-primary-dark)}
#download-links a+a{background:var(--surface-0);border-color:var(--ink-300);color:var(--ink)}
#download-links a+a:hover{background:#F0F5FA;border-color:var(--brand-primary)}

#boot{font-size:12px;padding:20px;border:1px solid var(--line);border-radius:8px;background:var(--surface-0);color:var(--ink-700);margin-top:20px}
.version{margin-left:8px;color:var(--ink-500)}
footer{font-size:10px;letter-spacing:.3px;color:var(--muted);display:flex;justify-content:space-between;gap:12px;margin:24px 0 0;padding-top:18px;border-top:1px solid var(--line)}
.footer-links{display:flex;align-items:center;justify-content:flex-end;gap:14px;flex-wrap:wrap}
.footer-link{background:transparent;border:0;border-radius:0;color:var(--brand-primary);font-size:10px;font-weight:500;letter-spacing:.3px;line-height:inherit;padding:0;text-decoration:underline;text-underline-offset:2px}
.footer-link:hover,.footer-link:disabled:hover{background:transparent;border-color:transparent;color:var(--brand-primary-dark)}

/* License dialog */
.licenses-dialog{width:min(760px,calc(100% - 32px));max-height:calc(100vh - 32px);padding:0;border:1px solid var(--line);border-radius:10px;background:var(--surface-0);color:var(--ink);box-shadow:0 20px 60px #00000040}
.licenses-dialog::backdrop{background:#1A1F2A99}
.licenses-heading{display:flex;align-items:flex-start;justify-content:space-between;gap:20px;padding:24px 26px 18px;border-bottom:1px solid var(--line)}
.licenses-heading .eyebrow{margin-bottom:7px}
.licenses-content{padding:20px 26px 26px;overflow:auto;max-height:calc(100vh - 145px)}
.licenses-content p{font-size:12px;line-height:1.7;color:var(--ink-700);margin:0 0 16px}
.licenses-content a{overflow-wrap:anywhere}
.dialog-close{flex:none;width:34px;height:34px;padding:0;border-color:var(--line);background:var(--surface-0);color:var(--ink-700);font-size:23px;font-weight:400;line-height:1}
.dialog-close:hover{background:var(--surface-50);border-color:var(--brand-primary);color:var(--brand-primary)}
.license-list{margin:4px 0 18px}
.license-list>div{padding:12px 0;border-top:1px solid var(--line)}
.license-list>div:last-child{border-bottom:1px solid var(--line)}
.license-list dt{font-size:12px;font-weight:600;color:var(--ink)}
.license-list dd{font-size:12px;line-height:1.65;color:var(--muted);margin:3px 0 0}
.licenses-content .privacy-note{background:var(--brand-tint);border-left:3px solid var(--brand-primary);border-radius:6px;padding:13px 15px;margin-bottom:0;color:var(--ink-700)}
[hidden]{display:none!important}

/* Opening guidance and help follow the annotator / P&ID Class Audit layout. */
.start-grid{display:grid;grid-template-columns:minmax(0,1.55fr) minmax(280px,1fr);gap:26px;align-items:start;margin-bottom:16px}
.start-grid>.card{min-width:0;margin-bottom:0}
.guide-card{min-width:0;padding:26px 12px}
.guide-card .eyebrow{margin-bottom:16px}
.guide-card h2{font-size:23px;line-height:1.3}
.guide-steps{list-style:none;padding:0;margin:25px 0 20px}
.guide-steps li{display:flex;gap:13px;margin-bottom:20px}
.guide-steps li>span{display:grid;place-items:center;flex:none;width:26px;height:26px;border:1px solid var(--brand-secondary);border-radius:6px;background:var(--amber-tint);color:var(--amber-ink);font-size:11px}
.guide-steps strong{font-size:12px;font-weight:600}
.guide-steps p{font-size:12px;color:var(--muted);line-height:1.65;margin:4px 0 0}
.guide-note{border-top:1px solid var(--line);padding-top:15px;font-size:12px;color:var(--muted);margin:0}
.local-note{display:flex;justify-content:center;align-items:center;gap:7px;font-size:10px;color:var(--muted);margin:20px 0 0}
.local-note svg{flex:none}
.start-status{margin:16px 0 0;padding:12px 14px;border-left:3px solid var(--brand-primary);border-radius:6px;background:var(--brand-tint);font-size:12px;color:var(--ink-700)}
.help{margin:28px 0 20px;border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:18px 0}
.help>summary{color:var(--muted);font-size:12px;font-weight:600}
.help>summary:hover{color:var(--brand-primary)}
.help[open]>summary{margin-bottom:0}
.help-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:35px;margin-top:12px}
.help h3{font-size:13px;font-weight:600;color:var(--ink);margin:18px 0 8px}
.help p{font-size:12px;color:var(--muted);line-height:1.7;margin:0 0 12px;overflow-wrap:anywhere}
.help .help-note{margin:20px 0 8px}

@media(max-width:1000px){
  .start-grid{grid-template-columns:1fr;gap:0}
  .guide-card{padding:22px 8px 12px}
  .guide-card h2 br{display:none}
  .guide-steps{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;margin:20px 0}
  .guide-steps li{display:block;margin:0}
  .guide-steps li>span{margin-bottom:8px}
}
@media(max-width:860px){
  .export-grid{grid-template-columns:1fr}
}
@media(max-width:640px){
  .help-grid{grid-template-columns:1fr}
  .help-grid{gap:0}
  .guide-card{padding:22px 0 12px}
  .guide-steps{display:block}
  .guide-steps li{display:flex;margin-bottom:18px}
  .guide-steps li>span{margin-bottom:0}
  .local-note{align-items:flex-start;justify-content:flex-start}
}

@media(prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}
@media(max-width:640px){
  main{padding:0 18px 20px}
  .masthead{margin:0 -18px;padding:14px 18px;align-items:flex-start;flex-wrap:wrap;gap:10px}
  .wordmark{flex-wrap:wrap;column-gap:12px}
  .brandWordmark{width:200px}
  .productName{padding-left:0;border-left:0}
  .privacy{font-size:10px}
  .intro{padding:30px 0 20px}
  h1{letter-spacing:-1px}
  .card{padding:20px 16px}
  .section-title{flex-wrap:wrap}
  .section-title .page-count{flex-basis:100%;margin-left:43px}
  .tool-bar{position:static}
  .page-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}
  .page-preview{height:190px}
  .page-preview canvas{max-height:180px}
  .page-controls{grid-template-columns:29px 1fr 29px 29px;gap:4px}
  .page-controls label{font-size:0}
  footer,.footer-links{align-items:flex-start;flex-direction:column;gap:7px}
  .licenses-heading{padding:20px 18px 15px}
  .licenses-content{padding:17px 18px 22px}
}

/* Embedded in a WordPress page. The site header already carries the branding,
   so the in-app masthead is dropped and the layout runs edge to edge. The
   license dialog opens in the parent page so it can cover the full viewport. */
.rk-embedded body{display:flow-root}
.rk-embedded .masthead{display:none}
.rk-embedded .licenses-dialog{display:none}
.rk-embedded main{max-width:none;padding-left:clamp(18px,4vw,64px);padding-right:clamp(18px,4vw,64px)}