/*
Theme Name: Standard Clarity
Theme URI: https://standardclarity.com/
Author: Standard Clarity
Description: Engineering-instrument theme for a standards-grounded electronics calculator site. Config-driven calculators, light/dark, no page builder, CWV-first.
Version: 1.0.56
Requires at least: 6.2
Requires PHP: 8.0
License: GPL-2.0-or-later
Text Domain: standard-clarity
*/

/* ---- self-hosted fonts (subsetted woff2) ---- */
@font-face{font-family:'Space Grotesk';font-style:normal;font-weight:600;font-display:swap;src:url('assets/fonts/SpaceGrotesk-600.woff2') format('woff2')}
@font-face{font-family:'Space Grotesk';font-style:normal;font-weight:700;font-display:swap;src:url('assets/fonts/SpaceGrotesk-700.woff2') format('woff2')}
@font-face{font-family:'IBM Plex Sans';font-style:normal;font-weight:400;font-display:swap;src:url('assets/fonts/IBMPlexSans-400.woff2') format('woff2')}
@font-face{font-family:'IBM Plex Sans';font-style:normal;font-weight:500;font-display:swap;src:url('assets/fonts/IBMPlexSans-500.woff2') format('woff2')}
@font-face{font-family:'IBM Plex Sans';font-style:normal;font-weight:600;font-display:swap;src:url('assets/fonts/IBMPlexSans-600.woff2') format('woff2')}
@font-face{font-family:'IBM Plex Mono';font-style:normal;font-weight:400;font-display:swap;src:url('assets/fonts/IBMPlexMono-400.woff2') format('woff2')}
@font-face{font-family:'IBM Plex Mono';font-style:normal;font-weight:500;font-display:swap;src:url('assets/fonts/IBMPlexMono-500.woff2') format('woff2')}

:root{
  --paper:#F6F7F9;--surface:#FFFFFF;--surface-2:#FBFCFD;
  --ink:#141A22;--ink-soft:#5A6573;--ink-faint:#8A93A0;
  --line:#E2E6EB;--line-strong:#CBD2DA;
  --copper:#BE6A3A;--copper-deep:#9A5128;--copper-wash:#F6ECE4;--copper-border:#EADBCF;
  --blue:#1C5C8C;--blue-deep:#16486E;--blue-wash:#EAF1F7;--substrate:#3A6B55;
  --warn:#8A5A1B;--warn-wash:#FBF3E3;--warn-border:#EBD9B8;
  --shadow:0 1px 2px rgba(20,26,34,.04),0 4px 16px rgba(20,26,34,.05);
  --shadow-lg:0 2px 4px rgba(20,26,34,.05),0 12px 32px rgba(20,26,34,.08);
  --grid:rgba(20,26,34,.045);
  --sp:clamp(30px,5vw,58px);     /* section rhythm */
}
[data-theme="dark"]{
  --paper:#0E1318;--surface:#161D26;--surface-2:#1C2530;
  --ink:#E7ECF2;--ink-soft:#A6B0BD;--ink-faint:#717C8A;
  --line:#27313D;--line-strong:#3A4654;
  --copper:#D98A55;--copper-deep:#E8A06A;--copper-wash:#241910;--copper-border:#3A2A1C;
  --blue:#5FA8DC;--blue-deep:#86C0E8;--blue-wash:#15222E;--substrate:#4E8870;
  --warn:#E0B074;--warn-wash:#2A2113;--warn-border:#3E3220;
  --shadow:0 1px 2px rgba(0,0,0,.3),0 6px 20px rgba(0,0,0,.35);
  --shadow-lg:0 2px 6px rgba(0,0,0,.35),0 16px 40px rgba(0,0,0,.45);
  --grid:rgba(255,255,255,.04);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--ink);font-family:"IBM Plex Sans","IBM Plex Sans Fallback",system-ui,sans-serif;line-height:1.6;-webkit-font-smoothing:antialiased;transition:background .25s,color .25s;display:flex;flex-direction:column;min-height:100vh;overflow-x:clip}
body>main{flex:1 0 auto;min-width:0}
footer{flex-shrink:0}
.wrap{max-width:1140px;margin:0 auto;padding:0 20px}
.mono{font-family:"IBM Plex Mono","IBM Plex Mono Fallback";font-variant-numeric:tabular-nums}
h1,h2,h3{font-family:"Space Grotesk","Space Grotesk Fallback";letter-spacing:-.015em;margin:0;color:var(--ink);line-height:1.12}
a{color:var(--blue);text-decoration:none}a:hover{color:var(--blue-deep)}
.eyebrow{font-family:"IBM Plex Mono","IBM Plex Mono Fallback";font-size:12px;font-weight:500;letter-spacing:.1em;text-transform:uppercase;color:var(--copper-deep)}

/* header */
.site-head{position:sticky;top:0;z-index:50;background:color-mix(in srgb,var(--surface) 90%,transparent);backdrop-filter:saturate(150%) blur(10px);border-bottom:1px solid var(--line);transition:background .25s,border-color .25s}
.site-head .wrap{display:flex;align-items:center;gap:22px;height:62px}
.brand{display:flex;align-items:center;gap:10px}
.brand .wm{font-family:"Space Grotesk","Space Grotesk Fallback";font-weight:700;font-size:18px;letter-spacing:-.025em;color:var(--ink)}
.nav{display:flex;gap:22px;margin-left:6px}
.nav a{color:var(--ink-soft);font-weight:500;font-size:14.5px}
.nav a:hover{color:var(--ink)}
.head-right{margin-left:auto;display:flex;align-items:center;gap:10px}
.toggle{display:inline-flex;align-items:center;gap:7px;border:1px solid var(--line-strong);background:var(--surface-2);color:var(--ink-soft);border-radius:100px;padding:7px 12px;font-family:"IBM Plex Mono","IBM Plex Mono Fallback";font-size:12px;cursor:pointer;transition:.15s}
.toggle:hover{border-color:var(--blue);color:var(--ink)}
.menu-btn{display:none;background:var(--surface-2);border:1px solid var(--line-strong);border-radius:8px;padding:8px;color:var(--ink);cursor:pointer}
/* mobile dropdown */
.mobile-nav{display:none;border-bottom:1px solid var(--line);background:var(--surface)}
.mobile-nav.open{display:block}
.mobile-nav a{display:block;padding:13px 20px;color:var(--ink);font-weight:500;border-top:1px solid var(--line);font-size:15px}
.mobile-nav a:first-child{border-top:none}
@media(max-width:860px){.nav{display:none}.menu-btn{display:inline-flex}}

/* hero */
.hero{position:relative;overflow:hidden;border-bottom:1px solid var(--line)}
.hero::before{content:"";position:absolute;inset:0;background-image:linear-gradient(var(--grid) 1px,transparent 1px),linear-gradient(90deg,var(--grid) 1px,transparent 1px);background-size:32px 32px;mask-image:radial-gradient(ellipse 85% 75% at 72% 18%,#000,transparent 76%);-webkit-mask-image:radial-gradient(ellipse 85% 75% at 72% 18%,#000,transparent 76%);pointer-events:none}
.hero .wrap{position:relative;display:grid;grid-template-columns:1.05fr .95fr;gap:clamp(26px,4vw,46px);align-items:center;padding:clamp(36px,6vw,68px) 20px}
@media(max-width:880px){.hero .wrap{grid-template-columns:1fr}}
.hero h1{font-size:clamp(31px,5.4vw,52px);font-weight:700;margin:14px 0 0}
.hero h1 .cu{color:var(--copper)}
.hero .sub{font-size:clamp(15.5px,2vw,18.5px);color:var(--ink-soft);max-width:54ch;margin:15px 0 0;line-height:1.5}
.search{display:flex;margin:24px 0 13px;border:1px solid var(--line-strong);background:var(--surface);border-radius:11px;box-shadow:var(--shadow);overflow:hidden;max-width:480px;transition:.15s}
.search:focus-within{border-color:var(--blue);box-shadow:0 0 0 3px var(--blue-wash)}
.search input{flex:1;min-width:0;border:0;background:transparent;padding:13px 15px;font-family:"IBM Plex Sans","IBM Plex Sans Fallback";font-size:15px;color:var(--ink);outline:none}
.search button{border:0;background:var(--blue);color:#fff;padding:0 17px;font-family:"IBM Plex Sans","IBM Plex Sans Fallback";font-weight:600;font-size:14px;cursor:pointer;display:flex;align-items:center;gap:7px}
.search button:hover{background:var(--blue-deep)}
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chip{font-family:"IBM Plex Mono","IBM Plex Mono Fallback";font-size:12.5px;color:var(--ink-soft);border:1px solid var(--line);background:var(--surface);border-radius:100px;padding:6px 13px;transition:.15s}
.chip:hover{border-color:var(--copper);color:var(--copper-deep)}

/* specimen card */
.specimen{background:var(--surface);border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow-lg);overflow:hidden;position:relative;transition:border-color .15s}
.specimen:hover{border-color:var(--blue)}
.spec-link{color:var(--blue);text-decoration:none;font-weight:500}
.spec-link::after{content:"";position:absolute;inset:0}
.specimen:hover .spec-link{text-decoration:underline}
.spec-top{display:flex;align-items:center;justify-content:space-between;padding:13px 17px;border-bottom:1px solid var(--line)}
.spec-top .t{font-family:"Space Grotesk","Space Grotesk Fallback";font-weight:600;font-size:14.5px}
.badge{font-family:"IBM Plex Mono","IBM Plex Mono Fallback";font-size:11px;letter-spacing:.05em;color:var(--copper-deep);background:var(--copper-wash);border:1px solid var(--copper-border);padding:4px 9px;border-radius:100px}
.spec-body{display:grid;grid-template-columns:1fr 1fr}
.spec-in{padding:14px 17px;border-right:1px solid var(--line)}
.spec-row{display:flex;justify-content:space-between;align-items:center;padding:6px 0;font-size:13px;color:var(--ink-soft)}
.spec-row .v{font-family:"IBM Plex Mono","IBM Plex Mono Fallback";color:var(--ink);background:var(--surface-2);border:1px solid var(--line);padding:2px 8px;border-radius:5px}
.spec-out{padding:14px 17px;display:flex;flex-direction:column;justify-content:center;align-items:center;text-align:center}
.spec-out .k{font-family:"IBM Plex Mono","IBM Plex Mono Fallback";font-size:10.5px;letter-spacing:.06em;text-transform:uppercase;color:var(--ink-faint)}
.spec-out .big{font-family:"IBM Plex Mono","IBM Plex Mono Fallback";font-weight:600;font-size:38px;color:var(--copper);line-height:1.05;margin-top:4px}
.spec-out .big .u{font-size:.4em;color:var(--copper-deep)}
.spec-out .alt{font-family:"IBM Plex Mono","IBM Plex Mono Fallback";font-size:13px;color:var(--ink-soft);margin-top:2px}
.spec-foot{border-top:1px solid var(--line);padding:10px 17px;display:flex;align-items:center;justify-content:space-between;font-size:12px;color:var(--ink-faint)}

/* sections */
section{padding:var(--sp) 0}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:18px;margin-bottom:clamp(18px,2.6vw,28px);flex-wrap:wrap}
.sec-head h2{font-size:clamp(22px,3.2vw,30px);font-weight:600;margin-top:7px}
.sec-head p{color:var(--ink-soft);margin:5px 0 0;max-width:52ch;font-size:15px}
.sec-link{font-family:"IBM Plex Sans","IBM Plex Sans Fallback";font-weight:600;font-size:14px;white-space:nowrap}

/* hub cards */
.hubs{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.hub{display:block;background:var(--surface);border:1px solid var(--line);border-radius:13px;padding:clamp(19px,2.6vw,25px);box-shadow:var(--shadow);transition:.18s}
.hub:hover{border-color:var(--copper);transform:translateY(-2px);box-shadow:var(--shadow-lg)}
.hub .ic{width:40px;height:40px;border-radius:10px;background:var(--copper-wash);border:1px solid var(--copper-border);display:flex;align-items:center;justify-content:center;margin-bottom:14px;flex:none}
.hub-body{min-width:0}
.hub h3{font-size:17.5px;font-weight:600}
.hub p{color:var(--ink-soft);font-size:14px;margin:7px 0 12px}
.hub .meta{font-family:"IBM Plex Mono","IBM Plex Mono Fallback";font-size:12px;color:var(--copper-deep);display:flex;align-items:center;gap:6px}
@media(max-width:820px){
  .hubs{grid-template-columns:1fr;gap:10px}
  .hub{display:flex;gap:13px;align-items:flex-start;padding:15px 16px}
  .hub .ic{margin-bottom:0;width:38px;height:38px}
  .hub h3{font-size:16px}
  .hub p{margin:3px 0 6px;font-size:13.5px}
}

/* tool grid */
.tools{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
@media(max-width:820px){.tools{grid-template-columns:repeat(2,1fr)}}
@media(max-width:520px){.tools{grid-template-columns:1fr}}
.tool{display:block;background:var(--surface);border:1px solid var(--line);border-radius:11px;padding:16px 18px;transition:.15s}
.tool:hover{border-color:var(--blue);box-shadow:var(--shadow);transform:translateY(-1px)}
.tool .tt{display:flex;align-items:center;justify-content:space-between;gap:10px}
.tool h3{font-size:15.5px;font-weight:600}
.tool p{color:var(--ink-faint);font-size:13px;margin:6px 0 0}
.badge-sm{font-family:"IBM Plex Mono","IBM Plex Mono Fallback";font-size:10px;letter-spacing:.04em;color:var(--ink-faint);border:1px solid var(--line);padding:3px 7px;border-radius:5px;white-space:nowrap}

/* features band */
.feat-band{padding:0;background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.feat-band .inner{padding-block:clamp(32px,5vw,52px)}
.feats{display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(20px,3vw,30px)}
@media(max-width:820px){.feats{grid-template-columns:1fr}}
.feat .fh{display:flex;align-items:center;gap:10px;margin-bottom:7px}
.feat h3{font-size:16px;font-weight:600}
.feat p{color:var(--ink-soft);font-size:14px;margin:0;line-height:1.5}
.feat .fn{font-family:"IBM Plex Mono","IBM Plex Mono Fallback";color:var(--copper);font-size:13px}

/* standards strip */
.std-sec{padding:clamp(20px,3.5vw,30px) 0}
.std{display:flex;flex-wrap:wrap;align-items:center;gap:9px 20px;justify-content:center}
.std .lab{font-family:"IBM Plex Mono","IBM Plex Mono Fallback";font-size:11.5px;letter-spacing:.08em;text-transform:uppercase;color:var(--ink-faint)}
.std .s{font-family:"IBM Plex Mono","IBM Plex Mono Fallback";font-size:13.5px;color:var(--ink-soft);font-weight:500}

/* footer */
footer{background:var(--surface);border-top:1px solid var(--line);padding:clamp(32px,4.5vw,46px) 0 26px}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:26px}
@media(max-width:820px){.foot-grid{grid-template-columns:1fr 1fr;gap:24px}}
@media(max-width:520px){.foot-grid{grid-template-columns:1fr 1fr}}
.foot-grid .foot-h{font-family:"IBM Plex Mono","IBM Plex Mono Fallback";font-size:11px;letter-spacing:.1em;text-transform:uppercase;color:var(--ink-faint);margin:0 0 12px}
.foot-grid a{display:block;color:var(--ink-soft);font-size:14px;padding:3px 0}
.foot-grid a:hover{color:var(--copper-deep)}
.foot-brand{grid-column:1/-1}
@media(min-width:821px){.foot-brand{grid-column:auto}}
.foot-tag{font-size:13.5px;color:var(--ink-faint);margin:12px 0 0;max-width:32ch}
.foot-bot{border-top:1px solid var(--line);margin-top:28px;padding-top:18px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;font-size:12.5px;color:var(--ink-faint)}
@media(prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}

/* ===== base templates: article, prose, posts, 404 ===== */
.article-wrap{padding-block:clamp(30px,5vw,58px)}
.crumb{font-size:13px;color:var(--ink-faint);margin-bottom:16px}
.crumb a{color:var(--ink-soft)}.crumb a:hover{color:var(--blue)}
.crumb span{margin:0 7px;color:var(--line-strong)}
.article{max-width:760px}
.article h1{font-size:clamp(28px,4.4vw,40px);font-weight:700;margin:0 0 18px}
.post-meta{font-family:"IBM Plex Mono","IBM Plex Mono Fallback";font-size:12.5px;color:var(--ink-faint);margin:0 0 14px}
.prose{font-size:16.5px;color:#2A3340;line-height:1.7}
[data-theme="dark"] .prose{color:#C4CDD8}
.prose>*+*{margin-top:16px}
.prose h2{font-family:"Space Grotesk","Space Grotesk Fallback";font-weight:600;font-size:clamp(20px,3vw,25px);margin:30px 0 0;color:var(--ink)}
.prose h3{font-family:"Space Grotesk","Space Grotesk Fallback";font-weight:600;font-size:19px;margin:24px 0 0;color:var(--ink)}
.prose a{color:var(--blue);text-decoration:underline;text-underline-offset:2px}
.prose ul,.prose ol{padding-left:22px}.prose li{margin:6px 0}
.prose blockquote{border-left:3px solid var(--copper);padding:4px 0 4px 16px;color:var(--ink-soft);margin-left:0}
.prose code{font-family:"IBM Plex Mono","IBM Plex Mono Fallback";font-size:.9em;background:var(--surface-2);border:1px solid var(--line);border-radius:5px;padding:1px 6px}
.prose img{max-width:100%;height:auto;border-radius:9px}
.prose table{width:100%;border-collapse:collapse;font-size:14.5px}
.prose th,.prose td{border:1px solid var(--line);padding:9px 12px;text-align:left}
.prose th{background:var(--surface-2);font-family:"IBM Plex Mono","IBM Plex Mono Fallback";font-size:12.5px}

/* post lists */
.post-list{display:grid;gap:14px;max-width:760px}
.post-card{background:var(--surface);border:1px solid var(--line);border-radius:11px;padding:20px 22px;box-shadow:var(--shadow)}
.post-card h3{font-size:18px;font-weight:600}
.post-card h3 a{color:var(--ink)}.post-card h3 a:hover{color:var(--copper-deep)}
.post-card p{color:var(--ink-soft);font-size:14.5px;margin:8px 0 0}
.post-more{display:inline-block;margin-top:10px;font-weight:600;font-size:14px}
.pager{margin-top:24px;font-family:"IBM Plex Mono","IBM Plex Mono Fallback";font-size:14px}
.pager .page-numbers{padding:7px 12px;border:1px solid var(--line);border-radius:7px;margin-right:6px;color:var(--ink-soft)}
.pager .page-numbers.current{background:var(--blue);border-color:var(--blue);color:#fff}

/* buttons */
.btn-primary{display:inline-block;background:var(--blue);color:#fff;font-family:"IBM Plex Sans","IBM Plex Sans Fallback";font-weight:600;font-size:14.5px;padding:11px 20px;border-radius:9px;transition:.15s}
.btn-primary:hover{background:var(--blue-deep);color:#fff}

/* ===== calculator + hub pages ===== */
.calc-wrap,.hub-wrap{padding-block:clamp(26px,4vw,48px);max-width:920px;overflow-x:clip}
.calc-wrap>section,.hub-wrap>section,.article-wrap>section{padding:0}        /* stop homepage section{} padding from leaking in */
.calc-head{margin:4px 0 0}
.calc-head h1{font-size:clamp(27px,4.4vw,40px);font-weight:700;margin:12px 0 0}
.calc-intro{color:var(--ink-soft);font-size:16px;margin:11px 0 0;max-width:66ch;line-height:1.55}

.tool-panel{background:var(--surface);border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow-lg);overflow:hidden;margin:22px 0 0}
.modebar{display:flex;align-items:center;gap:10px;padding:13px 18px;border-bottom:1px solid var(--line);background:var(--surface-2);flex-wrap:wrap}
.modebar .ml{font-size:12.5px;color:var(--ink-soft);font-weight:500}
.modeseg{display:inline-flex;border:1px solid var(--line-strong);border-radius:9px;overflow:hidden;background:var(--surface)}
.modeseg button{border:0;background:transparent;padding:8px 14px;font-family:"IBM Plex Sans","IBM Plex Sans Fallback";font-size:13px;font-weight:500;color:var(--ink-soft);cursor:pointer;border-right:1px solid var(--line)}
.modeseg button:last-child{border-right:0}
.modeseg button.on{background:var(--copper);color:#fff}
@media(max-width:560px){.modebar{gap:8px;padding:12px 14px}.modeseg{display:flex;width:100%}.modeseg button{flex:1 1 0;min-width:0;padding:8px 4px;font-size:12px;text-align:center}}
.tool-grid{display:grid;grid-template-columns:1fr 1fr}
.tool-grid>*{min-width:0}
@media(max-width:660px){.tool-grid{grid-template-columns:1fr}}
.tool-inputs{padding:22px 24px;border-right:1px solid var(--line)}
@media(max-width:660px){.tool-inputs{border-right:none;border-bottom:1px solid var(--line)}}
.field{margin-bottom:15px}.field:last-child{margin-bottom:0}.field.hide{display:none}
.field .lab{display:flex;align-items:center;gap:7px;font-size:13px;font-weight:500;color:var(--ink-soft);margin-bottom:6px}
.field .opt{font-family:"IBM Plex Mono","IBM Plex Mono Fallback";font-size:10.5px;color:var(--ink-faint);margin-left:auto;font-weight:400}
.help{display:inline-flex;align-items:center;justify-content:center;width:15px;height:15px;border-radius:50%;border:1px solid var(--line-strong);font-family:"IBM Plex Mono","IBM Plex Mono Fallback";font-size:9.5px;color:var(--ink-faint);cursor:help}
.control{display:flex;align-items:stretch;border:1px solid var(--line-strong);background:var(--surface-2);border-radius:9px;overflow:hidden;transition:.15s}
.control:focus-within{border-color:var(--blue);box-shadow:0 0 0 3px var(--blue-wash)}
.control input,.control select{flex:1;min-width:0;border:0;background:transparent;padding:10px 13px;font-family:"IBM Plex Mono","IBM Plex Mono Fallback";font-size:15px;color:var(--ink);outline:none}
.control select{font-family:"IBM Plex Sans","IBM Plex Sans Fallback";cursor:pointer}
.seg{display:flex;border-left:1px solid var(--line);background:var(--surface)}
.seg button{border:0;background:transparent;padding:0 11px;font-family:"IBM Plex Mono","IBM Plex Mono Fallback";font-size:12.5px;color:var(--ink-faint);cursor:pointer}
.seg button.on{background:var(--blue);color:#fff}
.unit{display:flex;align-items:center;padding:0 13px;background:var(--surface);border-left:1px solid var(--line);font-family:"IBM Plex Mono","IBM Plex Mono Fallback";font-size:12.5px;color:var(--ink-faint);white-space:nowrap}
.control .unit-sel{flex:0 0 auto;width:auto;padding:0 6px 0 11px;background:var(--surface);border-left:1px solid var(--line);font-family:"IBM Plex Mono","IBM Plex Mono Fallback";font-size:12.5px;color:var(--ink-soft);cursor:pointer}
.control .unit-sel:focus{color:var(--ink);box-shadow:none}

.tool-summary{padding:22px 24px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:5px}
.r-k{font-family:"IBM Plex Mono","IBM Plex Mono Fallback";font-size:10.5px;letter-spacing:.07em;text-transform:uppercase;color:var(--ink-faint);text-align:center}
.r-big{font-family:"IBM Plex Mono","IBM Plex Mono Fallback";font-weight:600;font-size:clamp(36px,7.5vw,48px);color:var(--copper);line-height:1.02}
.r-big .u{font-size:.36em;color:var(--copper-deep);margin-left:3px}
.r-alt{font-family:"IBM Plex Mono","IBM Plex Mono Fallback";font-size:13.5px;color:var(--ink-soft);text-align:center}
.diagram{width:100%;display:flex;justify-content:center;margin-top:8px}
.sc-xsec{width:100%;max-width:280px;height:auto}
.sc-fr4{fill:var(--substrate);opacity:.85}.sc-cu{fill:var(--copper)}.sc-dim{stroke:var(--ink-faint);stroke-width:1}
.sc-dimt{fill:var(--ink);font-family:"IBM Plex Mono","IBM Plex Mono Fallback";font-size:11px;font-weight:600}.sc-subt{fill:#fff;font-family:"IBM Plex Mono","IBM Plex Mono Fallback";font-size:8.5px;letter-spacing:.04em;opacity:.92}

.rtable{border-top:1px solid var(--line);overflow-x:auto}
.rtable table{width:100%;border-collapse:collapse;font-family:"IBM Plex Mono","IBM Plex Mono Fallback";font-size:13.5px}
.rtable th,.rtable td{padding:11px 14px;text-align:right;border-bottom:1px solid var(--line);white-space:nowrap}
.rtable th{font-family:"IBM Plex Sans","IBM Plex Sans Fallback";font-weight:500;font-size:11px;letter-spacing:.03em;text-transform:uppercase;color:var(--ink-faint);background:var(--surface-2)}
.rtable th:first-child,.rtable td:first-child{text-align:left}
.rtable tr:last-child td{border-bottom:none}
.rtable td.layer{font-family:"IBM Plex Sans","IBM Plex Sans Fallback";font-weight:600;color:var(--ink)}
.rtable td.prim{color:var(--copper);font-weight:500}
.rtable .muted{color:var(--ink-faint)}
.tbl-note{font-family:"IBM Plex Sans","IBM Plex Sans Fallback";font-size:12px;color:var(--ink-faint);padding:9px 14px;border-top:1px solid var(--line)}
@media(max-width:560px){.rtable th.col-r,.rtable td.col-r{display:none}.rtable th,.rtable td{padding:9px 8px}.rtable td.prim{white-space:normal}}

.validity{display:none;align-items:flex-start;gap:10px;padding:12px 16px;background:var(--warn-wash);border-top:1px solid var(--warn-border);color:var(--warn);font-size:13px;line-height:1.5}
.validity.show{display:flex}.validity svg{flex:none;margin-top:1px}
.actions{display:flex;gap:8px;padding:14px 16px;border-top:1px solid var(--line);flex-wrap:wrap}
.act{border:1px solid var(--line-strong);background:var(--surface-2);color:var(--ink-soft);border-radius:8px;padding:9px 14px;font-family:"IBM Plex Sans","IBM Plex Sans Fallback";font-size:13px;font-weight:500;cursor:pointer}
.act:hover{border-color:var(--blue);color:var(--ink)}.act.last{margin-left:auto}

.capsule{background:var(--copper-wash);border:1px solid var(--copper-border);border-radius:11px;padding:15px 18px;font-size:15px;color:var(--ink);line-height:1.55;margin-top:18px}
.capsule strong{color:var(--copper-deep)}
.block{margin-top:clamp(26px,3.4vw,34px)}
.block h2{font-family:"Space Grotesk","Space Grotesk Fallback";font-weight:600;font-size:clamp(20px,3vw,25px);margin-bottom:12px}
.block p{color:var(--ink-soft);font-size:15.5px;line-height:1.62;margin:0 0 13px}
.formula{font-family:"IBM Plex Mono","IBM Plex Mono Fallback";font-size:16px;color:var(--ink);background:var(--surface);border:1px solid var(--line);border-left:3px solid var(--copper);border-radius:8px;padding:14px 16px;margin:13px 0;overflow-x:auto}
dl.where{display:grid;grid-template-columns:auto 1fr;gap:5px 16px;margin:13px 0;font-size:14.5px}
dl.where dt{font-family:"IBM Plex Mono","IBM Plex Mono Fallback";color:var(--copper-deep);font-weight:500}dl.where dd{margin:0;color:var(--ink-soft)}
.example{background:var(--surface-2);border:1px solid var(--line);border-radius:11px;padding:16px 18px;margin-top:12px}
.example h3{font-size:15px;font-weight:600;margin-bottom:8px}
.example ol{margin:0;padding-left:20px}.example li{font-family:"IBM Plex Mono","IBM Plex Mono Fallback";font-size:13.5px;color:var(--ink-soft);margin:5px 0;overflow-wrap:break-word}
.ref{margin-top:6px;border:1px solid var(--line);border-radius:11px;overflow-x:auto}
.ref table{width:100%;border-collapse:collapse;font-family:"IBM Plex Mono","IBM Plex Mono Fallback";font-size:13.5px}
.ref th,.ref td{padding:9px 14px;text-align:right;border-bottom:1px solid var(--line)}
.ref th:first-child,.ref td:first-child{text-align:left}
.ref th{background:var(--surface-2);font-family:"IBM Plex Sans","IBM Plex Sans Fallback";font-weight:500;font-size:11.5px;text-transform:uppercase;letter-spacing:.03em;color:var(--ink-faint)}
.ref tr:last-child td{border-bottom:none}
.ref caption{caption-side:bottom;font-family:"IBM Plex Sans","IBM Plex Sans Fallback";font-size:12px;color:var(--ink-faint);padding:9px 14px;text-align:left}
.src{font-size:13px;color:var(--ink-faint);margin-top:18px}
.faq details{border:1px solid var(--line);border-radius:10px;background:var(--surface);margin-bottom:9px;overflow:hidden}
.faq summary{padding:14px 17px;font-weight:600;font-size:15px;cursor:pointer;list-style:none;display:flex;justify-content:space-between;gap:12px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font-family:"IBM Plex Mono","IBM Plex Mono Fallback";color:var(--copper);font-size:18px}.faq details[open] summary::after{content:"\2013"}
.faq-a{padding:0 17px 15px;color:var(--ink-soft);font-size:14.5px;line-height:1.6}
.link-cols{display:grid;grid-template-columns:1fr;gap:26px}
@media(max-width:620px){.link-cols{gap:18px}}
.lc-h{font-family:"IBM Plex Mono","IBM Plex Mono Fallback";font-size:11px;letter-spacing:.08em;text-transform:uppercase;color:var(--ink-faint);margin:0 0 10px}
.linkcards{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:10px}
@media(max-width:560px){.linkcards{grid-template-columns:1fr}}
.linkcard{position:relative;display:block;background:var(--surface);border:1px solid var(--line);border-radius:11px;padding:14px 40px 14px 20px;transition:transform .18s,border-color .18s,background .18s,box-shadow .18s;overflow:hidden}
.linkcard::before{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--copper);opacity:.4;transition:opacity .18s,width .18s}
.linkcard::after{content:"\2192";position:absolute;right:15px;top:50%;transform:translate(-3px,-50%);color:var(--ink-faint);font-family:"IBM Plex Mono","IBM Plex Mono Fallback";font-size:15px;opacity:.35;transition:opacity .18s,transform .18s,color .18s}
.linkcard:hover{border-color:var(--copper);background:var(--copper-wash);transform:translateY(-2px);box-shadow:var(--shadow)}
.linkcard:hover::before{opacity:1;width:4px}
.linkcard:hover::after{opacity:1;transform:translate(2px,-50%);color:var(--copper)}
.linkcard[href*="/standards/"]::before{background:var(--blue)}
.linkcard[href*="/standards/"]:hover{border-color:var(--blue);background:var(--blue-wash)}
.linkcard[href*="/standards/"]:hover::after{color:var(--blue)}
.linkcard[href*="/guides/"]::before{background:var(--copper-deep)}
.lc-t{display:block;font-family:"Space Grotesk","Space Grotesk Fallback";font-weight:600;font-size:15px;color:var(--ink)}
.lc-d{display:block;font-size:13px;color:var(--ink-faint);margin-top:2px}
@media print{.site-head,footer,.actions,.mobile-nav,.modebar{display:none!important}.tool-panel{box-shadow:none}}

/* ===== guides ===== */
.byline{font-family:"IBM Plex Mono","IBM Plex Mono Fallback";font-size:13px;color:var(--ink-faint);margin:0 0 22px}
.byline a{color:var(--ink-soft)}.byline a:hover{color:var(--blue)}
.guide-list{display:grid;gap:14px;max-width:760px;margin-top:6px}
.guide-card{display:block;background:var(--surface);border:1px solid var(--line);border-radius:11px;padding:18px 20px;box-shadow:var(--shadow);transition:.15s}
.guide-card:hover{border-color:var(--copper);transform:translateY(-1px);box-shadow:var(--shadow-lg)}
.guide-card h3{font-size:18px;font-weight:600;color:var(--ink)}
.guide-card:hover h3{color:var(--copper-deep)}
.guide-card p{color:var(--ink-soft);font-size:14px;margin:7px 0 9px}
.g-meta{font-family:"IBM Plex Mono","IBM Plex Mono Fallback";font-size:11.5px;color:var(--ink-faint)}

/* decoder pages: text-friendly reference tables */
.dc-page .ref table{font-family:"IBM Plex Sans","IBM Plex Sans Fallback",system-ui,sans-serif;font-size:13px}
.dc-page .ref th,.dc-page .ref td{text-align:left;white-space:normal;overflow-wrap:anywhere;vertical-align:top}
.dc-page .ref .col-r{text-align:right;white-space:nowrap}
.dc-page .ref td:first-child strong,.dc-page .ref .col-r strong{font-family:"IBM Plex Mono","IBM Plex Mono Fallback"}
/* ===== IP / NEMA decoder ===== */
.dc-tabs{display:flex;gap:6px;background:var(--surface-2);border:1px solid var(--line);border-radius:11px;padding:5px;margin-bottom:20px;flex-wrap:wrap}
.dc-tab{flex:1;min-width:130px;border:0;background:transparent;color:var(--ink-soft);font-family:"Space Grotesk","Space Grotesk Fallback";font-weight:600;font-size:14px;padding:10px 12px;border-radius:8px;cursor:pointer;transition:.15s}
.dc-tab:hover{color:var(--ink)}
.dc-tab[aria-selected="true"]{background:var(--surface);color:var(--copper-deep);box-shadow:var(--shadow)}
.dc-inlabel{display:block;font-size:13px;font-weight:600;color:var(--ink-soft);margin-bottom:8px}
.dc-input{width:100%;box-sizing:border-box;border:1.5px solid var(--line-strong);background:var(--surface);color:var(--ink);border-radius:11px;padding:15px 18px;font-family:"IBM Plex Mono","IBM Plex Mono Fallback";font-size:24px;font-weight:500;letter-spacing:.04em;text-transform:uppercase;outline:none;transition:.15s}
.dc-input:focus{border-color:var(--copper);box-shadow:0 0 0 3px var(--copper-wash)}
.dc-select{width:100%;box-sizing:border-box;border:1.5px solid var(--line-strong);background:var(--surface);color:var(--ink);border-radius:11px;padding:13px 16px;font-family:"IBM Plex Sans","IBM Plex Sans Fallback";font-size:16px;outline:none;cursor:pointer}
.dc-select:focus{border-color:var(--copper);box-shadow:0 0 0 3px var(--copper-wash)}
.dc-presets{display:flex;flex-wrap:wrap;gap:7px;margin:12px 0 4px}
.dc-preset{font-family:"IBM Plex Mono","IBM Plex Mono Fallback";font-size:12.5px;color:var(--ink-soft);border:1px solid var(--line);background:var(--surface);border-radius:100px;padding:6px 13px;cursor:pointer;transition:.15s}
.dc-preset:hover{border-color:var(--copper);color:var(--copper-deep)}
.cc-presets{display:flex;flex-wrap:wrap;align-items:center;gap:7px;margin:0 0 14px}
.cc-presets-l{font-size:12.5px;color:var(--ink-faint);margin-right:2px}
.cc-preset{font-family:"IBM Plex Mono","IBM Plex Mono Fallback";font-size:12.5px;color:var(--ink-soft);border:1px solid var(--line);background:var(--surface);border-radius:100px;padding:6px 13px;cursor:pointer;transition:.15s}
.cc-preset:hover{border-color:var(--copper);color:var(--copper-deep)}
.cc-cite{font-size:13.5px;color:var(--ink-soft);background:var(--surface-2);border-left:3px solid var(--line-strong);padding:10px 14px;border-radius:0 8px 8px 0;margin:6px 0}
.dc-result{margin-top:20px}
.dc-hint{color:var(--ink-faint);font-size:14px;margin:0}
.dc-summary{font-size:15px;color:var(--ink-soft);margin:0 0 14px}
.dc-summary strong{font-family:"IBM Plex Mono","IBM Plex Mono Fallback";color:var(--ink);font-weight:600}
.dc-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:12px}
.dc-card{display:flex;gap:14px;min-width:0;background:var(--surface-2);border:1px solid var(--line);border-radius:12px;padding:16px 18px}
.dc-ic{flex:none;width:40px;height:40px;border-radius:9px;background:var(--copper-wash);border:1px solid var(--copper-border);color:var(--copper-deep);display:flex;align-items:center;justify-content:center}
.dc-ic svg{width:22px;height:22px}
.dc-num{font-family:"IBM Plex Mono","IBM Plex Mono Fallback";font-size:13px;font-weight:600;color:var(--copper-deep);letter-spacing:.05em}
.dc-title{font-family:"Space Grotesk","Space Grotesk Fallback";font-weight:600;font-size:15.5px;color:var(--ink);margin:1px 0 5px}
.dc-desc{font-size:13.5px;color:var(--ink-soft);margin:0;line-height:1.5}
.dc-note{margin-top:14px;background:var(--blue-wash);border:1px solid var(--line);border-left:3px solid var(--blue);border-radius:8px;padding:12px 15px;font-size:13.5px;color:var(--ink-soft);line-height:1.55}
.dc-note strong{color:var(--ink)}
.dc-nema-head{display:flex;align-items:flex-start;justify-content:space-between;gap:16px;background:var(--surface-2);border:1px solid var(--line);border-radius:12px;padding:18px 20px}
.dc-nema-head .dc-num{font-size:22px;color:var(--ink);font-weight:700}
.dc-badges{display:flex;flex-wrap:wrap;gap:7px;margin-top:9px}
.dc-badge{display:inline-flex;align-items:center;gap:6px;font-size:12.5px;color:var(--ink-soft);background:var(--surface);border:1px solid var(--line);border-radius:100px;padding:5px 11px}
.dc-badge svg{width:15px;height:15px}
.dc-badge-x{color:var(--copper-deep);background:var(--copper-wash);border-color:var(--copper-border)}
.dc-equiv{flex:none;text-align:right}
.dc-equiv-l{display:block;font-size:11px;text-transform:uppercase;letter-spacing:.08em;color:var(--ink-faint);font-family:"IBM Plex Mono","IBM Plex Mono Fallback"}
.dc-equiv-v{font-family:"IBM Plex Mono","IBM Plex Mono Fallback";font-size:24px;font-weight:600;color:var(--copper-deep)}
.dc-nema-desc{margin:14px 2px 0;font-size:14.5px}
.dc-find-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:14px}
.dc-q{display:flex;flex-direction:column;gap:7px;font-size:13px;font-weight:600;color:var(--ink-soft)}
.dc-find-out{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:12px}
.dc-find-cell{background:var(--surface-2);border:1px solid var(--line);border-radius:12px;padding:16px 18px;text-align:center}
.dc-find-v{display:block;font-family:"IBM Plex Mono","IBM Plex Mono Fallback";font-size:26px;font-weight:600;color:var(--copper-deep);margin-top:4px}
.dc-list{margin:4px 0 0;padding-left:20px;color:var(--ink-soft);font-size:14.5px}
.dc-list li{margin-bottom:5px}
.dc-q{min-width:0}
.dc-q select{width:100%;box-sizing:border-box;margin-top:2px;border:1.5px solid var(--line-strong);background:var(--surface);color:var(--ink);border-radius:9px;padding:11px 12px;font-family:"IBM Plex Sans","IBM Plex Sans Fallback";font-size:15px;font-weight:400;outline:none;cursor:pointer}
.dc-q select:focus{border-color:var(--copper);box-shadow:0 0 0 3px var(--copper-wash)}
.dc-body{min-width:0}
.dc-desc{overflow-wrap:anywhere}
.dc-find-cell{min-width:0}
@media(max-width:600px){.dc-grid,.dc-find-grid,.dc-find-out{grid-template-columns:1fr}.dc-nema-head{flex-direction:column}.dc-equiv{text-align:left}}

/* decoder panel inner padding (content was flush to the edges) */
.tool-panel.dc{padding:clamp(16px,3.5vw,24px)}

/* guide / prose rich content: answer box, comparison tables, SVG figures */
.prose .keybox{background:var(--copper-wash);border:1px solid var(--copper-border);border-radius:12px;padding:15px 18px;margin:20px 0;color:var(--ink);font-size:15px;line-height:1.6}
.prose .keybox strong{color:var(--copper-deep)}
.prose th,.prose td{border:1px solid var(--line);padding:9px 12px;text-align:left;vertical-align:top;font-size:14px}
.prose thead th{background:var(--surface-2);font-family:"IBM Plex Sans","IBM Plex Sans Fallback";font-weight:600;font-size:12.5px;color:var(--ink-soft)}
.prose figure{margin:24px 0}
.prose .diagram-svg{width:100%;height:auto;display:block;border:1px solid var(--line);border-radius:12px;background:var(--surface-2);padding:14px;box-sizing:border-box;color:var(--ink)}

/* teaching diagrams (server-rendered SVG, theme tokens, paints on first load) */
.teach{margin:0;padding:18px 16px;border:1px solid var(--line);border-radius:14px;background:var(--surface-2)}
.teach svg{display:block;width:100%;height:auto;max-width:540px;margin:0 auto}
.teach text{font-family:"IBM Plex Sans","IBM Plex Sans Fallback",system-ui,sans-serif;font-size:12px;fill:var(--ink-soft)}
.teach text.k{fill:var(--ink);font-weight:600}
.teach text.kk{fill:var(--ink);font-weight:700;font-size:13px}
.teach text.soft{fill:var(--ink-soft)}
.teach text.mono{font-family:"IBM Plex Mono","IBM Plex Mono Fallback",monospace;fill:var(--ink)}
.teach text.onfill{fill:#fff;font-weight:600}
.teach .lead{stroke:var(--line-strong);stroke-width:1;stroke-dasharray:3 3}
.teach figcaption{margin:12px 4px 0;font-size:13.5px;line-height:1.5;color:var(--ink-soft);text-align:left}
.block>.teach{margin-top:4px}
.scen-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:14px}
.bat-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin:6px 0 2px}
.bat-grid label{display:block;font-size:13px;color:var(--ink-soft);margin-bottom:6px;font-weight:600}
.bat-chems{display:flex;flex-wrap:wrap;gap:8px;margin:2px 0}
@media(max-width:480px){.bat-grid{grid-template-columns:1fr}}
.scen{border:1px solid var(--line);border-radius:11px;padding:15px 16px;background:var(--surface)}
.scen h3{font-family:"Space Grotesk","Space Grotesk Fallback";font-weight:600;font-size:15px;margin:0 0 6px;color:var(--ink)}
.scen p{font-size:14px;line-height:1.55;color:var(--ink-soft);margin:0}
.prose figcaption{font-size:12.5px;color:var(--ink-faint);margin-top:9px;text-align:center;line-height:1.5}
.prose svg .ax{stroke:var(--line-strong);stroke-width:1.2}
.prose svg .board{fill:var(--surface);stroke:var(--line-strong);stroke-width:1.2}
.prose svg .cu{fill:var(--copper);stroke:none}
.prose svg .plane{fill:var(--substrate);opacity:.3;stroke:var(--substrate);stroke-width:1}
.prose svg .heat{stroke:#D6663B;stroke-width:1.8;fill:none;stroke-linecap:round;stroke-linejoin:round}
.prose svg .lbl{fill:var(--ink);font-family:"IBM Plex Sans","IBM Plex Sans Fallback";font-size:14px}
.prose svg .lbl-s{fill:var(--ink-soft);font-family:"IBM Plex Sans","IBM Plex Sans Fallback";font-size:12px}

/* standards reference cards */
.std-list{display:grid;gap:14px;margin-top:6px}
.std-card{background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:20px 22px;box-shadow:var(--shadow)}
.std-card h3{font-family:"Space Grotesk","Space Grotesk Fallback";font-size:19px;font-weight:600;color:var(--ink);margin:11px 0 8px}
.std-card p{color:var(--ink-soft);font-size:14.5px;margin:0 0 13px;line-height:1.6}
.std-used{display:flex;flex-wrap:wrap;gap:8px;align-items:center}
.std-used .lbl{font-family:"IBM Plex Mono","IBM Plex Mono Fallback";font-size:11px;text-transform:uppercase;letter-spacing:.06em;color:var(--ink-faint)}
.std-used a{font-size:13px;color:var(--blue);border:1px solid var(--line);border-radius:100px;padding:5px 12px;transition:.15s;text-decoration:none}
.std-used a:hover{border-color:var(--copper);color:var(--copper-deep)}
.std-src{font-size:12px;color:var(--ink-faint);margin:12px 0 0}
.std-src a{color:var(--ink-soft)}

/* converter result stats */
.cv-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:12px;margin-top:4px}
.cv-stat{background:var(--surface-2);border:1px solid var(--line);border-radius:12px;padding:16px 18px;min-width:0}
.cv-lbl{font-family:"IBM Plex Mono","IBM Plex Mono Fallback";font-size:11px;text-transform:uppercase;letter-spacing:.06em;color:var(--ink-faint)}
.cv-val{font-family:"IBM Plex Mono","IBM Plex Mono Fallback";font-size:23px;font-weight:600;color:var(--ink);margin-top:5px;line-height:1.1}
.cv-val .u{font-size:13.5px;color:var(--ink-soft);font-weight:400;margin-left:2px}
.cv-sub{font-size:12.5px;color:var(--ink-soft);margin-top:6px;overflow-wrap:anywhere}
.cv-amp{margin-top:14px;padding:14px;border:1px solid var(--line);border-radius:12px;background:var(--surface-2)}
.cv-amp-h{font-size:12.5px;color:var(--ink-soft);margin-bottom:10px}
.cv-amp-cells{display:flex;gap:10px;flex-wrap:wrap}
.cv-amp-c{flex:1;min-width:84px;display:flex;flex-direction:column;gap:2px;padding:9px 11px;border:1px solid var(--line);border-radius:9px;background:var(--surface)}
.cv-amp-c span{font-size:11.5px;color:var(--ink-faint)}
.cv-amp-c strong{font-family:"IBM Plex Mono","IBM Plex Mono Fallback";font-size:16px;color:var(--ink)}
.cv-amp-note{margin-top:9px;font-size:11.5px;color:var(--ink-faint);line-height:1.5}
@media(max-width:560px){.cv-grid{grid-template-columns:1fr}}

/* narrow reference tables on small screens */
@media(max-width:560px){.ref .col-opt{display:none}.ref table{font-size:12px}.ref th,.ref td{padding:8px 9px}}

/* creepage & clearance tool */
.cc-inputs{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px 16px}
.cc-field{display:flex;flex-direction:column;min-width:0}
.cc-field label{font-family:"IBM Plex Mono","IBM Plex Mono Fallback";font-size:11px;text-transform:uppercase;letter-spacing:.05em;color:var(--ink-soft);margin-bottom:6px}
.cc-field input,.cc-field select{font-family:"IBM Plex Sans","IBM Plex Sans Fallback";font-size:15px;color:var(--ink);background:var(--surface-2);border:1px solid var(--line-strong);border-radius:9px;padding:10px 12px;width:100%}
.cc-field input:focus,.cc-field select:focus{outline:none;border-color:var(--copper);box-shadow:0 0 0 3px var(--copper-wash)}
.cc-help{font-size:11.5px;color:var(--ink-faint);margin-top:5px;line-height:1.4}
.cc-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin-top:4px}
.cc-stat{border:1px solid var(--line);border-radius:12px;padding:16px 18px;min-width:0}
.cc-clr{background:var(--blue-wash);border-color:#cfe0ee}
.cc-crp{background:var(--copper-wash);border-color:var(--copper-border)}
.cc-stat .cv-val{font-size:28px}
.cc-steps{margin-top:14px;background:var(--surface-2);border:1px solid var(--line);border-radius:11px;padding:14px 16px}
.cc-steps-h{font-family:"IBM Plex Mono","IBM Plex Mono Fallback";font-size:11px;text-transform:uppercase;letter-spacing:.05em;color:var(--ink-faint);margin-bottom:8px}
.cc-steps ol{margin:0;padding-left:20px} .cc-steps li{font-size:13.5px;color:var(--ink-soft);margin:7px 0;line-height:1.55} .cc-steps strong{color:var(--ink)}
@media(max-width:560px){.cc-inputs{grid-template-columns:1fr}.cc-grid{grid-template-columns:1fr}}

/* standard explainer pages */
.std-fulltitle{color:var(--ink-soft);font-size:15px;margin-top:8px;font-style:italic}
.keyfacts{display:grid;gap:0;border:1px solid var(--line);border-radius:12px;overflow:hidden;margin:0}
.kf-row{display:grid;grid-template-columns:minmax(120px,200px) 1fr;gap:0;border-bottom:1px solid var(--line)}
.kf-row:last-child{border-bottom:none}
.kf-row dt{font-family:"IBM Plex Mono","IBM Plex Mono Fallback";font-size:12px;text-transform:uppercase;letter-spacing:.04em;color:var(--ink-faint);padding:12px 14px;background:var(--surface-2);margin:0}
.kf-row dd{font-size:14.5px;color:var(--ink);padding:12px 16px;margin:0}
@media(max-width:560px){.kf-row{grid-template-columns:1fr}.kf-row dt{padding-bottom:2px}.kf-row dd{padding-top:4px}}

/* NEMA enclosure type selector */
.sel-inputs{grid-template-columns:repeat(3,minmax(0,1fr))}
@media(max-width:760px){.sel-inputs{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:480px){.sel-inputs{grid-template-columns:1fr}}
.sel-rec{border:1px solid var(--line);border-radius:13px;background:var(--surface-2);padding:clamp(16px,3vw,22px);margin-top:4px}
.sel-head{display:flex;align-items:center;gap:16px;flex-wrap:wrap}
.sel-badge{display:flex;flex-direction:column;align-items:center;justify-content:center;background:var(--copper);color:#fff;border-radius:11px;padding:10px 16px;font-family:"IBM Plex Mono","IBM Plex Mono Fallback";font-size:11px;letter-spacing:.08em;text-transform:uppercase;line-height:1;min-width:104px}
.sel-badge span{font-family:"Space Grotesk","Space Grotesk Fallback";font-size:26px;font-weight:700;letter-spacing:-.02em;text-transform:none;margin-top:5px}
.sel-meta{display:flex;flex-direction:column;gap:3px}
.sel-loc{font-family:"Space Grotesk","Space Grotesk Fallback";font-weight:600;font-size:17px;color:var(--ink)}
.sel-ip{font-family:"IBM Plex Mono","IBM Plex Mono Fallback";font-size:13px;color:var(--blue-deep)}
.sel-ip span{color:var(--ink-faint)}
.sel-desc{font-size:14.5px;color:var(--ink-soft);line-height:1.55;margin:14px 0 0}
.sel-use{display:block;color:var(--ink-faint);font-size:13.5px;margin-top:4px}
.sel-why,.sel-alts{margin-top:15px}
.sel-why-h,.sel-alts-h{font-family:"IBM Plex Mono","IBM Plex Mono Fallback";font-size:11px;text-transform:uppercase;letter-spacing:.05em;color:var(--ink-faint);margin-bottom:6px}
.sel-why ul,.sel-alts ul{margin:0;padding-left:18px}
.sel-why li,.sel-alts li{font-size:14px;color:var(--ink-soft);margin:5px 0;line-height:1.5}
.sel-why strong,.sel-alts strong{color:var(--ink)}
.sel-note{margin-top:14px;background:var(--warn-wash);border:1px solid var(--warn-border);color:var(--warn);border-radius:10px;padding:11px 14px;font-size:13.5px;line-height:1.5}
.sel-caveat{margin-top:14px;font-size:12.5px;color:var(--ink-faint);line-height:1.5;border-top:1px solid var(--line);padding-top:12px}
.sel-actions{display:flex;align-items:center;gap:12px;margin-top:15px}
.sel-copy{font-family:"IBM Plex Mono","IBM Plex Mono Fallback";font-size:12px;color:var(--ink-soft);background:var(--surface);border:1px solid var(--line-strong);border-radius:8px;padding:8px 13px;cursor:pointer;transition:.15s}
.sel-copy:hover{border-color:var(--copper);color:var(--ink)}
.sel-copied{font-family:"IBM Plex Mono","IBM Plex Mono Fallback";font-size:12px;color:var(--substrate)}
.sel-flag{border-color:var(--warn-border);background:var(--warn-wash)}
.sel-flag-h{font-family:"Space Grotesk","Space Grotesk Fallback";font-weight:700;font-size:18px;color:var(--warn);margin-bottom:6px}
.sel-flag p{margin:0;color:var(--ink-soft);font-size:14.5px;line-height:1.55}
.sel-version{font-family:"IBM Plex Mono","IBM Plex Mono Fallback";font-size:11.5px;color:var(--ink-faint);margin:14px 0 0}
.sel-x{display:inline-block;background:var(--copper-wash);color:var(--copper-deep);border:1px solid var(--copper-border);border-radius:5px;font-family:"IBM Plex Mono","IBM Plex Mono Fallback";font-size:10px;font-weight:600;padding:1px 5px;margin-left:5px;vertical-align:middle}
.sel-callout{margin-top:14px;background:var(--copper-wash);border:1px solid var(--copper-border);border-radius:10px;padding:12px 15px;font-size:13.5px;color:var(--ink);line-height:1.55}
.sel-callout strong{color:var(--copper-deep)}
.sel-scope{display:flex;align-items:flex-start;gap:10px;padding:12px 16px;background:var(--warn-wash);border:1px solid var(--warn-border);border-radius:10px;color:var(--warn);font-size:13px;line-height:1.5}
.sel-scope svg{flex:none;margin-top:1px}
.lc-s{display:block;font-size:12.5px;color:var(--ink-faint);margin-top:3px;font-family:"IBM Plex Sans","IBM Plex Sans Fallback"}

/* related-standards table (text-heavy, on article-wrap pages without dc-page) */
.rel-table table{font-family:"IBM Plex Sans","IBM Plex Sans Fallback",system-ui,sans-serif;font-size:13px}
.rel-table th,.rel-table td{text-align:left;white-space:normal;overflow-wrap:anywhere;vertical-align:top}
.rel-table td:first-child strong{font-family:"IBM Plex Mono","IBM Plex Mono Fallback"}

/* metric-matched fallbacks - the swap no longer shifts size, weight or layout */
@font-face{font-family:"Space Grotesk Fallback";src:local("Arial");size-adjust:97.72%;ascent-override:100.69%;descent-override:29.88%;line-gap-override:0.00%}
@font-face{font-family:"IBM Plex Sans Fallback";src:local("Arial");size-adjust:97.44%;ascent-override:105.19%;descent-override:28.22%;line-gap-override:0.00%}
@font-face{font-family:"IBM Plex Mono Fallback";src:local("Courier New"),local("Courier");size-adjust:99.98%;ascent-override:102.52%;descent-override:27.50%;line-gap-override:0.00%}

/* PCB via current result panel */
.vresult{padding:22px 24px;display:flex;flex-direction:column;justify-content:center;gap:16px;min-width:0}
.vbig{display:flex;flex-direction:column;align-items:center;text-align:center;gap:4px;font-family:"IBM Plex Mono","IBM Plex Mono Fallback";font-weight:600;font-size:clamp(32px,6.5vw,44px);color:var(--copper);line-height:1.04}
.vbig .vu{font-size:.34em;color:var(--copper-deep);font-weight:600}
.vbig .vsub{font-size:.32em;font-weight:500;color:var(--ink-soft);letter-spacing:.01em;line-height:1.4}
.vbig.is-hot{color:var(--warn)}
.vbig.is-hot .vu{color:var(--warn)}
.vgrid{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:13px 18px;border-top:1px solid var(--line);padding-top:14px}
.vr{display:flex;flex-direction:column;gap:1px;font-size:13px;min-width:0}
.vr-l{color:var(--ink-faint);font-size:12px}
.vr-v{color:var(--ink);font-family:"IBM Plex Mono","IBM Plex Mono Fallback";font-weight:500;overflow-wrap:anywhere}
.vformula{font-family:"IBM Plex Mono","IBM Plex Mono Fallback";font-size:11.5px;line-height:1.75;color:var(--ink-soft);background:var(--surface-2);border:1px solid var(--line);border-radius:8px;padding:10px 12px;overflow-x:auto}
.vformula strong{color:var(--copper-deep)}
.vf-alt{color:var(--ink-faint)}
@media(max-width:420px){.vgrid{grid-template-columns:1fr}}

/* UL 94 selector */
.tool-panel.u94{padding:clamp(16px,3.5vw,24px)}
.rtable .row-2152{background:var(--copper-wash,rgba(180,120,60,.06))}
.rtable .row-2152 .layer{color:var(--copper-deep);font-weight:600}
.u94-tool{padding:18px 0}
.u94-tool:first-child{padding-top:2px}
.u94-tool + .u94-tool{border-top:1px solid var(--line)}
.u94-th{font-family:"Space Grotesk","Space Grotesk Fallback";font-size:16px;font-weight:600;color:var(--ink);margin:0 0 14px}
.u94-row{display:grid;gap:14px 16px}
.u94-row-2{grid-template-columns:repeat(2,minmax(0,1fr))}
.u94-row-3{grid-template-columns:repeat(3,minmax(0,1fr))}
@media(max-width:640px){.u94-row-2,.u94-row-3{grid-template-columns:1fr}}
.u94-result{margin-top:16px}
.u94-verdict{display:flex;align-items:flex-start;gap:12px;padding:13px 15px;border-radius:11px;border:1px solid var(--line-strong);background:var(--surface-2)}
.u94-verdict.is-ok{background:var(--blue-wash);border-color:var(--blue)}
.u94-verdict.is-no{background:var(--warn-wash);border-color:var(--warn-border)}
.u94-vmark{font-size:18px;line-height:1.25;font-weight:700}
.u94-verdict.is-ok .u94-vmark{color:var(--blue-deep)}
.u94-verdict.is-no .u94-vmark{color:var(--warn)}
.u94-verdict strong{display:block;font-family:"Space Grotesk","Space Grotesk Fallback";font-size:15px;color:var(--ink)}
.u94-detail{display:block;font-size:13.5px;color:var(--ink-soft);margin-top:2px;line-height:1.5}
.u94-need-card{margin-top:12px;border:1px solid var(--line);border-radius:10px;padding:12px 14px;background:var(--surface)}
.u94-need-h{font-family:"IBM Plex Mono","IBM Plex Mono Fallback";font-size:11px;text-transform:uppercase;letter-spacing:.05em;color:var(--copper-deep)}
.u94-need-card dl{display:grid;grid-template-columns:repeat(3,1fr);gap:8px 14px;margin:8px 0 0}
.u94-need-card dt{font-family:"IBM Plex Mono","IBM Plex Mono Fallback";font-size:11px;text-transform:uppercase;letter-spacing:.04em;color:var(--ink-faint)}
.u94-need-card dd{margin:2px 0 0;font-size:13.5px;color:var(--ink)}
@media(max-width:560px){.u94-need-card dl{grid-template-columns:1fr}}
.u94-caveat{font-size:12.5px;color:var(--ink-faint);line-height:1.55;margin:11px 0 0}
.u94-help-head{display:flex;flex-direction:column;gap:2px;padding:11px 14px;border-radius:10px;background:var(--copper-wash);border:1px solid var(--copper-border)}
.u94-help-head strong{font-family:"Space Grotesk","Space Grotesk Fallback";font-size:16px;color:var(--ink)}
.u94-help-why{font-size:14px;color:var(--ink);line-height:1.6;margin:11px 0 0}
.u94-help-std,.u94-help-thk{font-size:13px;color:var(--ink-soft);line-height:1.55;margin:9px 0 0}
.u94-help-link{display:inline-block;margin-top:11px;font-family:"IBM Plex Mono","IBM Plex Mono Fallback";font-size:12.5px;color:var(--blue);text-decoration:none}
.u94-help-link:hover{color:var(--blue-deep)}
.u94-foot{display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;border-top:1px solid var(--line);margin-top:6px;padding-top:14px}
.u94-foot .sel-version{margin:0}
.u94-share{font-family:"IBM Plex Mono","IBM Plex Mono Fallback";font-size:12px;color:var(--ink-soft);background:var(--surface-2);border:1px solid var(--line-strong);border-radius:8px;padding:8px 13px;cursor:pointer;transition:.15s}
.u94-share:hover{border-color:var(--copper);color:var(--copper-deep)}
#ul94-ladder tr.is-need td{background:var(--copper-wash)}
#ul94-ladder tr.is-have td{background:var(--blue-wash)}
#ul94-ladder tr.is-need.is-have td{background:var(--blue-wash)}
#ul94-ladder tr.is-need td:first-child{box-shadow:inset 3px 0 0 var(--copper)}
#ul94-ladder tr.is-have td:first-child{box-shadow:inset 3px 0 0 var(--blue)}

/* instant search dropdown (appended to <body> so no ancestor overflow can clip it) */
.search-results{position:absolute;z-index:1000;box-sizing:border-box;background:var(--surface);border:1px solid var(--line-strong);border-radius:12px;box-shadow:var(--shadow-lg);overflow:hidden;max-height:60vh;overflow-y:auto;text-align:left}
.sr-item{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:11px 15px;text-decoration:none;border-bottom:1px solid var(--line)}
.sr-item:last-child{border-bottom:0}
.sr-item:hover,.sr-item.active{background:var(--surface-2)}
.sr-t{font-family:"Space Grotesk","Space Grotesk Fallback";font-weight:600;font-size:14.5px;color:var(--ink)}
.sr-y{font-family:"IBM Plex Mono","IBM Plex Mono Fallback";font-size:10.5px;text-transform:uppercase;letter-spacing:.06em;color:var(--ink-faint);flex:none}