/* =====================================================================
   Material guide page styles — ported from the design reference
   C:\Users\karl\Downloads\template\material-datasheet-mpd.html

   Every selector is scoped under `.mpd-material` so the page styles
   cannot leak into the surrounding site theme. The standalone top
   logo-bar (.topbar) and page footer rules from the reference are
   intentionally dropped — the site theme supplies the header/footer.
   The audience toggle (Plain English / Engineer view) flips the
   `plain` class on the `.mpd-material` root (the JS does this). The
   @media print rules are kept so the "Datasheet PDF" button works.
   ===================================================================== */

.mpd-material{
  --blue:#1E64B6; --blue-700:#174f8f; --blue-900:#11223c; --blue-050:#eef4fb;
  --gold:#c39433; --gold-bright:#d9b868; --gold-soft:#f7efda;
  --ink:#1b2533; --ink-2:#48535f; --ink-3:#7b8794;
  --paper:#f6f8fb; --card:#ffffff; --line:#e4e9f0; --line-2:#eef2f7;
  --good:#2f7d52; --fair:#b07320; --poor:#b23b2e;
  --r:16px;
  --sh-sm:0 1px 2px rgba(17,34,60,.05), 0 2px 8px rgba(17,34,60,.04);
  --sh-md:0 4px 14px rgba(17,34,60,.07), 0 10px 30px rgba(17,34,60,.06);
  --disp:'Varela Round',system-ui,sans-serif;
  --sans:'Hanken Grotesk',system-ui,sans-serif;
  --mono:'Spline Sans Mono',ui-monospace,monospace;

  background:var(--paper);color:var(--ink);font-family:var(--sans);font-size:16px;line-height:1.6;-webkit-font-smoothing:antialiased;
}
.mpd-material *{box-sizing:border-box}
.mpd-material .wrap{max-width:1020px;margin:0 auto;padding:0 22px}
.mpd-material a{color:var(--blue);text-decoration:none}
.mpd-material h1,.mpd-material h2,.mpd-material h3{font-family:var(--disp);font-weight:400;line-height:1.12;margin:0;letter-spacing:.005em}

/* HERO */
.mpd-material .hero{position:relative;overflow:hidden;color:#eaf1fa;background:radial-gradient(130% 120% at 85% -20%, #2a6fc0 0%, var(--blue-700) 42%, var(--blue-900) 100%)}
.mpd-material .hero::after{content:"";position:absolute;inset:0;opacity:.10;pointer-events:none;background-image:repeating-linear-gradient(115deg,#fff 0 1px,transparent 1px 58px)}
.mpd-material .hero::before{content:"";position:absolute;right:-120px;top:-120px;width:380px;height:380px;border-radius:50%;background:radial-gradient(circle,rgba(217,184,104,.22),transparent 62%);pointer-events:none}
.mpd-material .hero .wrap{padding:46px 22px 40px;position:relative;z-index:1}
.mpd-material .crumbs{font-family:var(--mono);font-size:12px;color:#9db8d6;letter-spacing:.04em;margin-bottom:20px}
.mpd-material .crumbs a{color:#9db8d6} .mpd-material .crumbs a:hover{color:#fff}
.mpd-material .eyebrow{display:inline-flex;align-items:center;gap:8px;font-family:var(--mono);font-size:12px;text-transform:uppercase;letter-spacing:.14em;color:var(--gold-bright);border:1px solid rgba(217,184,104,.45);border-radius:999px;padding:6px 13px;margin-bottom:18px}
.mpd-material .hero h1{font-size:clamp(36px,6vw,58px);color:#fff;margin:0 0 10px}
.mpd-material .hero h1 .grade{color:var(--gold-bright)}
.mpd-material .hero .sub{font-size:19px;color:#cfe0f2;max-width:58ch;margin:0 0 28px;line-height:1.5}
.mpd-material .chips{display:flex;flex-wrap:wrap;gap:11px}
.mpd-material .chip{background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.16);backdrop-filter:blur(3px);border-radius:13px;padding:11px 15px;min-width:120px;transition:.18s}
.mpd-material .chip:hover{background:rgba(255,255,255,.12);transform:translateY(-2px)}
.mpd-material .chip .k{font-family:var(--mono);font-size:10.5px;text-transform:uppercase;letter-spacing:.1em;color:#9db8d6}
.mpd-material .chip .v{font-family:var(--disp);font-size:19px;color:#fff;margin-top:3px}
.mpd-material .chip .v small{font-size:12px;color:#aec6e0}

/* SECTIONS */
.mpd-material main{padding:0 0 64px}
.mpd-material .subnav{position:sticky;top:0;z-index:40;background:rgba(246,248,251,.92);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.mpd-material .subnav .wrap{display:flex;gap:6px;overflow-x:auto;height:50px;align-items:center}
.mpd-material .subnav a{font-family:var(--mono);font-size:12px;color:var(--ink-3);text-transform:uppercase;letter-spacing:.05em;padding:7px 12px;border-radius:8px;white-space:nowrap}
.mpd-material .subnav a:hover{color:var(--blue);background:var(--blue-050)}
.mpd-material section{margin:34px 0 0;scroll-margin-top:128px}
.mpd-material .sec-head{display:flex;align-items:baseline;gap:14px;margin:0 0 16px}
.mpd-material .sec-head .no{font-family:var(--mono);font-size:13px;color:var(--blue);font-weight:600;padding-top:5px}
.mpd-material .sec-head h2{font-size:27px;color:var(--ink)}
.mpd-material .sec-head .tag{margin-left:auto;font-family:var(--mono);font-size:11px;color:var(--ink-3);letter-spacing:.04em;align-self:center}
.mpd-material .card{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:24px 26px;box-shadow:var(--sh-sm)}
.mpd-material .card + .card{margin-top:14px}
.mpd-material .lead{font-size:17.5px;color:var(--ink-2);max-width:72ch;margin:0}

.mpd-material .aud-row{display:flex;align-items:center;gap:14px;flex-wrap:wrap;margin:26px 0 4px}
.mpd-material .aud{display:inline-flex;background:var(--card);border:1px solid var(--line);border-radius:11px;padding:4px;gap:4px;box-shadow:var(--sh-sm)}
.mpd-material .aud button{font-family:var(--mono);font-size:12px;letter-spacing:.03em;border:0;background:transparent;color:var(--ink-3);padding:8px 15px;border-radius:8px;cursor:pointer;transition:.15s}
.mpd-material .aud button.on{background:var(--blue);color:#fff}
.mpd-material .aud-hint{font-size:13px;color:var(--ink-3)}

.mpd-material .twocol{display:grid;grid-template-columns:1fr 1fr;gap:14px}
@media(max-width:680px){.mpd-material .twocol{grid-template-columns:1fr}}
.mpd-material .pluslist,.mpd-material .minuslist{list-style:none;padding:0;margin:8px 0 0}
.mpd-material .pluslist li,.mpd-material .minuslist li{position:relative;padding-left:28px;margin:10px 0;color:var(--ink-2)}
.mpd-material .pluslist li::before{content:"";position:absolute;left:1px;top:6px;width:13px;height:8px;border-left:2.5px solid var(--good);border-bottom:2.5px solid var(--good);transform:rotate(-45deg)}
.mpd-material .minuslist li::before{content:"";position:absolute;left:2px;top:12px;width:13px;height:2.5px;background:var(--poor);border-radius:2px}
.mpd-material .subcard h3{font-size:13px;font-family:var(--mono);text-transform:uppercase;letter-spacing:.07em;color:var(--ink-3);margin-bottom:6px}

.mpd-material table.spec{width:100%;border-collapse:collapse;font-size:14.5px}
.mpd-material table.spec th{text-align:left;font-family:var(--mono);font-weight:500;color:var(--ink-3);font-size:11px;text-transform:uppercase;letter-spacing:.07em;padding:0 0 11px;border-bottom:1px solid var(--line)}
.mpd-material table.spec td{padding:12px 0;border-bottom:1px solid var(--line-2);vertical-align:top}
.mpd-material table.spec td:first-child{color:var(--ink-2);width:54%}
.mpd-material table.spec td.val{font-family:var(--mono);color:var(--ink);font-weight:600;text-align:right;font-variant-numeric:tabular-nums}
.mpd-material table.spec td.unit{font-family:var(--mono);color:var(--ink-3);font-size:12px;width:0;white-space:nowrap;padding-left:12px}
.mpd-material table.spec tr:last-child td{border-bottom:0}
.mpd-material .grid2{display:grid;grid-template-columns:1fr 1fr;gap:14px}
@media(max-width:680px){.mpd-material .grid2{grid-template-columns:1fr}}

.mpd-material .comp-bar{display:flex;height:36px;border-radius:10px;overflow:hidden;border:1px solid var(--line);margin:6px 0 18px;box-shadow:inset 0 1px 2px rgba(17,34,60,.06)}
.mpd-material .comp-bar span{display:block;height:100%}
.mpd-material .comp-legend{display:flex;flex-wrap:wrap;gap:7px 16px;font-family:var(--mono);font-size:12px;color:var(--ink-2)}
.mpd-material .comp-legend i{display:inline-block;width:10px;height:10px;border-radius:3px;margin-right:6px;vertical-align:middle}

.mpd-material .rate{display:inline-block;font-family:var(--mono);font-size:11px;font-weight:600;text-transform:uppercase;letter-spacing:.04em;padding:4px 10px;border-radius:7px}
.mpd-material .r-Excellent{background:#e4f1ea;color:var(--good)} .mpd-material .r-Good{background:#e9f2ec;color:var(--good)}
.mpd-material .r-Fair{background:var(--gold-soft);color:var(--fair)} .mpd-material .r-Poor{background:#f7e4df;color:var(--poor)} .mpd-material .r-Avoid{background:#f6dad4;color:var(--poor)}

.mpd-material .fab{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:11px}
.mpd-material .fab .cell{background:var(--blue-050);border:1px solid #dbe7f4;border-radius:12px;padding:14px 15px}
.mpd-material .fab .cell .k{font-family:var(--mono);font-size:11px;text-transform:uppercase;letter-spacing:.05em;color:var(--ink-3)}
.mpd-material .fab .cell .v{font-family:var(--disp);font-size:17px;margin-top:4px;color:var(--ink)}

.mpd-material .apps{display:flex;flex-wrap:wrap;gap:9px}
.mpd-material .apps .app{background:var(--gold-soft);border:1px solid #ecdcb4;color:#7d5a14;border-radius:10px;padding:9px 14px;font-size:14px;font-weight:600}

.mpd-material .order-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:12px;margin-top:2px}
.mpd-material .stat{background:var(--blue-050);border:1px solid #dbe7f4;border-radius:13px;padding:16px 17px}
.mpd-material .stat .k{font-family:var(--mono);font-size:10.5px;text-transform:uppercase;letter-spacing:.07em;color:var(--blue-700)}
.mpd-material .stat .v{font-family:var(--disp);font-size:23px;margin-top:5px;color:var(--ink)}
.mpd-material .stat .v small{font-size:13px;color:var(--ink-3)} .mpd-material .stat .v.placeholder{color:var(--gold)}
.mpd-material .trust{display:flex;flex-wrap:wrap;gap:10px 22px;margin-top:18px;padding-top:18px;border-top:1px dashed var(--line)}
.mpd-material .trust span{display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:600;color:var(--ink-2)}
.mpd-material .trust span::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--blue)}
.mpd-material .pills{display:flex;flex-wrap:wrap;gap:8px}
.mpd-material .pills .pill{font-family:var(--mono);font-size:13px;background:var(--paper);border:1px solid var(--line);border-radius:8px;padding:6px 11px;color:var(--ink-2)}

.mpd-material details{border-bottom:1px solid var(--line-2)}
.mpd-material details summary{cursor:pointer;list-style:none;padding:16px 0;font-weight:700;font-size:16px;display:flex;justify-content:space-between;gap:12px;color:var(--ink)}
.mpd-material details summary::-webkit-details-marker{display:none}
.mpd-material details summary::after{content:"+";font-family:var(--mono);color:var(--blue);font-size:21px;line-height:1}
.mpd-material details[open] summary::after{content:"–"}
.mpd-material details .ans{padding:0 0 17px;color:var(--ink-2);max-width:74ch}

/* mid-page conversion rail */
.mpd-material .midcta{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px;
  background:linear-gradient(180deg,#fff,var(--blue-050));border:1px solid #d8e6f5;border-left:4px solid var(--blue);
  border-radius:var(--r);padding:20px 24px;box-shadow:var(--sh-sm);margin-top:34px}
.mpd-material .midcta strong{font-family:var(--disp);font-size:19px;color:var(--ink);display:block}
.mpd-material .midcta span{font-size:14.5px;color:var(--ink-2)}
.mpd-material .midcta-btns{display:flex;gap:10px;flex-wrap:wrap}

.mpd-material .cta{position:relative;overflow:hidden;border-radius:var(--r);padding:30px 32px;margin-top:34px;color:#eaf1fa;background:radial-gradient(120% 160% at 88% -30%, #2a6fc0 0%, var(--blue-700) 45%, var(--blue-900) 100%);display:flex;flex-wrap:wrap;align-items:center;gap:20px;justify-content:space-between;box-shadow:var(--sh-md)}
.mpd-material .cta::after{content:"";position:absolute;inset:0;opacity:.08;background-image:repeating-linear-gradient(115deg,#fff 0 1px,transparent 1px 54px)}
.mpd-material .cta>*{position:relative;z-index:1}
.mpd-material .cta h3{color:#fff;font-size:24px} .mpd-material .cta p{color:#cfe0f2;margin:6px 0 0;font-size:15px;max-width:46ch}
.mpd-material .cta .dl{display:flex;gap:11px;flex-wrap:wrap}
.mpd-material .btn{display:inline-flex;align-items:center;gap:8px;font-family:var(--sans);font-weight:700;font-size:15px;border-radius:12px;padding:14px 22px;cursor:pointer;border:0;transition:.18s;text-decoration:none}
.mpd-material .btn-primary{background:var(--gold-bright);color:#3a2c08} .mpd-material .btn-primary:hover{background:#e6c87e;transform:translateY(-2px)}
.mpd-material .btn-ghost{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.3);color:#fff} .mpd-material .btn-ghost:hover{background:rgba(255,255,255,.16)}
.mpd-material .btn-blue{background:var(--blue);color:#fff} .mpd-material .btn-blue:hover{background:var(--blue-700);transform:translateY(-1px)}
.mpd-material .btn-outline{background:#fff;border:1.5px solid var(--blue);color:var(--blue)} .mpd-material .btn-outline:hover{background:var(--blue-050)}
.mpd-material .btn-sm{padding:11px 18px;font-size:14px}

.mpd-material .disclaimer{font-size:12.5px;color:var(--ink-3);line-height:1.55;max-width:82ch;margin-top:26px}

/* ---- /materials/ hub grid (archive) ---- */
.mpd-material--hub .wrap{padding-top:34px}
.mpd-material--hub h1{font-size:clamp(30px,5vw,46px);color:var(--ink);margin:0 0 8px}
.mpd-material--hub > .wrap > h2,.mpd-material--hub h2{font-size:22px;color:var(--ink);margin:30px 0 14px}
.mpd-material .grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:14px}
.mpd-material .card-link{display:flex;flex-direction:column;gap:6px;background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:20px 22px;box-shadow:var(--sh-sm);transition:.18s;color:var(--ink)}
.mpd-material .card-link:hover{transform:translateY(-2px);box-shadow:var(--sh-md);border-color:#cdd9e8}
.mpd-material .card-link strong{font-family:var(--disp);font-weight:400;font-size:20px;color:var(--ink)}
.mpd-material .card-link span{font-size:14px;color:var(--ink-2);line-height:1.45}

/* audience toggle: plain hides the engineering-depth blocks + their numbers */
.mpd-material.plain [data-aud="eng"]{display:none}
.mpd-material.plain .sec-head .no{display:none}

@keyframes mpd-material-rise{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:none}}
.mpd-material .hero .wrap>*{animation:mpd-material-rise .6s cubic-bezier(.2,.7,.2,1) both}
.mpd-material .hero .crumbs{animation-delay:.02s}.mpd-material .hero .eyebrow{animation-delay:.08s}
.mpd-material .hero h1{animation-delay:.14s}.mpd-material .hero .sub{animation-delay:.2s}.mpd-material .hero .chips{animation-delay:.26s}
@media(prefers-reduced-motion:reduce){.mpd-material *{animation:none!important}}

@media print{
  .mpd-material{--paper:#fff;font-size:11.5px}
  .mpd-material .subnav,.mpd-material .aud-row,.mpd-material .cta .dl,.mpd-material .midcta-btns{display:none!important}
  .mpd-material .hero,.mpd-material .card,.mpd-material .chip,.mpd-material .stat,.mpd-material .fab .cell,.mpd-material .apps .app,.mpd-material .cta,.mpd-material .comp-bar span,.mpd-material .midcta{-webkit-print-color-adjust:exact;print-color-adjust:exact}
  .mpd-material .wrap{max-width:none;padding:0 12mm} .mpd-material section{page-break-inside:avoid;margin-top:14px}
  .mpd-material.plain [data-aud="eng"]{display:block} .mpd-material.plain .sec-head .no{display:inline}
  .mpd-material a{color:var(--ink)} .mpd-material .hero .wrap>*{animation:none}
}