:root{
    /* sampled from the logo */
    --navy:#012550;
    --crimson:#911010;

    --ink:#0B1F3D;
    --ink-soft:#5A6A80;
    --paper:#EFF1F4;
    --surface:#FFFFFF;
    --line:#D2D9E3;

    --t-pm:#012550;
    --t-telecom:#911010;
    --t-iot:#0B6B60;
    --t-nr:#353F86;
    --t-ai:#67306B;
    --t-field:#7A5320;
    --t-build:#2C6B3F;

    --display:'Spectral',Georgia,serif;
    --body:'Inter',system-ui,sans-serif;
    --mono:'IBM Plex Mono',ui-monospace,monospace;

    --pad:clamp(18px,5vw,64px);
  }

  .ph-home *{box-sizing:border-box}
  html{scroll-behavior:smooth}
  .ph-home{
    background:var(--paper);color:var(--ink);
    font-family:var(--body);font-size:17px;line-height:1.6;
    -webkit-font-smoothing:antialiased;
    position:relative;width:100%;max-width:100%;margin:0;
  }
  .ph-home p{margin:0}
  .ph-home ul{list-style:none;margin:0;padding:0}
  .ph-home img{max-width:100%;height:auto}
  .ph-home a{color:inherit}
  .ph-home h1,.ph-home h2,.ph-home h3{font-family:var(--display);line-height:1.06;margin:0;letter-spacing:-0.015em}
  .ph-eyebrow{
    font-family:var(--mono);font-size:11.5px;letter-spacing:.16em;
    text-transform:uppercase;color:var(--ink-soft);margin:0;
  }
  .ph-home :focus-visible{outline:2px solid var(--crimson);outline-offset:3px}

  /* ---------------- hero ---------------- */
  .ph-hero{padding:clamp(40px,7vw,88px) var(--pad) 0}
  .ph-hero h1,.ph-sec-head h2{scroll-margin-top:120px}
  .ph-hero h1{font-size:clamp(36px,7.4vw,86px);font-weight:700;max-width:16ch}
  .ph-hero h1 em{display:block;font-style:normal;font-weight:600;color:var(--crimson)}
  .ph-hero-lede{max-width:56ch;margin:24px 0 0;font-size:clamp(16.5px,2vw,20px);color:var(--ink-soft)}
  .hero-meta{display:flex;flex-wrap:wrap;gap:8px 24px;margin-top:24px}
  .hero-meta span{font-family:var(--mono);font-size:11.5px;color:var(--ink-soft)}

  /* ---------------- credentials strip ---------------- */
  .ph-proof{
    margin-top:clamp(28px,5vw,52px);
    border-top:1px solid var(--line);border-bottom:1px solid var(--line);
    display:grid;grid-template-columns:repeat(4,1fr);
    gap:1px;background:var(--line);
  }
  .ph-proof-cell{
    background:var(--surface);
    padding:22px clamp(16px,2vw,26px) 20px;
    display:flex;flex-direction:column;gap:6px;
  }
  .ph-proof-cell b{
    font-family:var(--display);font-weight:600;
    font-size:clamp(21px,2.6vw,28px);color:var(--navy);
    line-height:1.05;letter-spacing:-.015em;
  }
  .ph-proof-cell span{font-size:13.5px;line-height:1.45;color:var(--ink-soft)}
  .ph-proof-cell a{color:var(--crimson)}
  .ph-proof-cell em{font-style:italic}

  /* ---------------- topics ---------------- */
  .ph-writing{padding:clamp(48px,7vw,96px) var(--pad) 0}
  .ph-sec-head{display:flex;align-items:baseline;justify-content:space-between;gap:18px;flex-wrap:wrap;margin-bottom:30px}
  .ph-sec-head h2{font-size:clamp(24px,3.6vw,40px);font-weight:600}
  .ph-grid{
    display:grid;gap:1px;grid-template-columns:repeat(3,1fr);
    background:var(--line);border:1px solid var(--line);
    border-radius:12px;overflow:hidden;
  }
  .ph-topic{scroll-margin-top:140px;
    background:var(--surface);padding:26px clamp(20px,2.4vw,30px) 24px;
    display:flex;flex-direction:column;gap:12px;position:relative;
    transition:background .2s ease;
  }
  .ph-topic::before{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--c)}
  .ph-topic:hover,.ph-topic:focus-within{background:#FAFBFC}
  .ph-topic-top{display:flex;justify-content:space-between;align-items:center;gap:12px}
  .ph-topic-tag{font-family:var(--mono);font-size:10.5px;letter-spacing:.11em;text-transform:uppercase;color:var(--c)}
  .ph-topic-count{font-family:var(--mono);font-size:10.5px;color:var(--ink-soft)}
  .ph-topic h3{font-size:clamp(22px,2.6vw,28px);font-weight:600}
  .ph-topic p{margin:0;color:var(--ink-soft);font-size:15px;line-height:1.55}
  .ph-topic-label{
    font-family:var(--mono);font-size:10px;letter-spacing:.16em;
    text-transform:uppercase;color:var(--ink-soft);
    margin:6px 0 0;padding-top:14px;
    border-top:1px solid var(--line);
  }
  .ph-topic-list{list-style:none;margin:10px 0 0;padding:0;display:grid;gap:8px}
  .ph-topic-list li{
    margin:0;padding:0;border:0;
    background:#F5F8FB;
    border:1px solid #E2E9F1;
    border-left:3px solid var(--c);
    border-radius:8px;
    transition:background .18s ease,border-color .18s ease,transform .18s ease;
  }
  .ph-topic-list li:hover{background:#fff;border-color:var(--c);transform:translateX(2px)}
  .ph-topic-list a{
    display:flex;align-items:flex-start;gap:9px;
    padding:11px 13px;
    text-decoration:none;
    font-family:var(--body);font-weight:600;
    font-size:15.5px;line-height:1.35;
    color:var(--t-iot);
    text-underline-offset:3px;
  }
  .ph-topic-list a::before{
    content:"\2192";flex-shrink:0;
    font-family:var(--mono);font-size:13px;line-height:1.5;
    color:var(--c);opacity:.85;
  }
  .ph-topic-list a:hover{text-decoration:underline}
  .ph-topic-link{
    margin-top:auto;padding-top:14px;font-family:var(--mono);font-size:12px;
    text-decoration:none;display:inline-flex;align-items:center;gap:7px;color:var(--c);
  }
  .ph-topic-link .ph-arrow{transition:transform .18s ease}
  .ph-topic-link:hover .ph-arrow{transform:translateX(5px)}

  /* ---------------- signup ---------------- */
  .ph-signup{scroll-margin-top:140px;padding:clamp(48px,7vw,90px) var(--pad) 0}
  .ph-signup-panel{
    background:var(--surface);border:1px solid var(--line);border-radius:14px;
    border-left:3px solid var(--crimson);
    padding:clamp(22px,3.5vw,36px);
    max-width:720px;margin:0 auto;
  }
  .ml-embedded{min-height:60px}

  /* ---------------- shelf ---------------- */
  .ph-shelf{padding:clamp(48px,7vw,96px) var(--pad) 0}
  .ph-shelf-panel{
    background:var(--navy);color:#E8ECF3;border-radius:14px;
    padding:clamp(28px,5vw,58px);
    display:grid;grid-template-columns:1.15fr .85fr;gap:clamp(26px,5vw,60px);align-items:center;
  }
  .ph-shelf-panel h2{font-size:clamp(27px,4.2vw,48px);font-weight:600;color:#fff}
  .ph-shelf-panel p{color:#A9B8CE;max-width:46ch;margin:16px 0 0;font-size:16px}
  .ph-shelf-panel .ph-eyebrow{color:#7F91AB}
  .ph-shelf-cta{
    display:inline-flex;align-items:center;gap:9px;margin-top:24px;
    background:var(--crimson);color:#fff;text-decoration:none;
    font-family:var(--mono);font-size:13px;padding:13px 22px;border-radius:999px;
    transition:transform .18s ease;
  }
  .ph-shelf-cta:hover{transform:translateY(-2px)}
  .ph-shelf-items{display:grid;gap:1px;background:#123061;border-radius:9px;overflow:hidden}
  .ph-shelf-items div{background:#031E42;padding:16px 18px;display:flex;justify-content:space-between;align-items:flex-start;gap:14px}
  .ph-shelf-item-main{display:flex;flex-direction:column;gap:3px;min-width:0}
  .ph-shelf-items strong{font-family:var(--display);font-weight:500;font-size:18px;color:#fff;line-height:1.15}
  .ph-shelf-items em{font-style:normal;font-size:13px;line-height:1.4;color:#8FA6C4}
  .ph-shelf-status{
    font-family:var(--mono);font-size:9.5px;letter-spacing:.1em;text-transform:uppercase;
    color:#A9B8CE;border:1px solid #1D3F6E;border-radius:99px;padding:4px 9px;white-space:nowrap;flex-shrink:0;
  }

  /* ---------------- about + footer ---------------- */
  .ph-about{scroll-margin-top:140px;
    padding:clamp(48px,7vw,96px) var(--pad);
    display:grid;grid-template-columns:1fr 1.5fr;gap:clamp(20px,5vw,60px);align-items:start;
  }
  .ph-about h2{font-size:clamp(24px,3.4vw,38px);font-weight:600}
  .ph-about p{margin:0 0 16px;max-width:62ch;color:#33415A}
  .ph-about p:last-child{margin-bottom:0}
  .ph-creds{
    list-style:none;margin:22px 0;padding:0;
    display:flex;flex-wrap:wrap;gap:8px;
  }
  .ph-creds li{
    font-family:var(--mono);font-size:11.5px;letter-spacing:.03em;
    color:var(--navy);background:var(--surface);
    border:1px solid var(--line);border-left:2px solid var(--crimson);
    padding:7px 12px;border-radius:4px;
  }
  .ph-about em{font-style:italic;color:var(--ink)}
  .ph-site-foot{border-top:1px solid var(--line);padding:30px var(--pad) 44px}
  .ph-foot-mark{font-family:var(--display);font-weight:600;font-size:24px}
  .ph-foot-mark .ph-a{color:var(--navy)}
  .ph-foot-mark .ph-b{color:var(--crimson)}
  .ph-foot-mark .ph-c{color:#6B7280;font-size:.66em}
  .ph-foot-tag{font-family:var(--mono);font-size:10px;letter-spacing:.24em;text-transform:uppercase;margin-top:6px}
  .ph-foot-tag .ph-t-a{color:var(--navy)}
  .ph-foot-tag .ph-t-b{color:var(--crimson)}
  .ph-foot-links{
    display:flex;flex-wrap:wrap;gap:12px 24px;margin-top:22px;
    font-family:var(--mono);font-size:12px;color:var(--ink-soft);
  }
  .ph-foot-links a{text-decoration:none}
  .ph-foot-links a:hover{color:var(--crimson)}

  @media (max-width:1080px){
    .ph-grid{grid-template-columns:repeat(2,1fr)}
    .ph-proof{grid-template-columns:repeat(2,1fr)}
  }
  @media (max-width:720px){
    .ph-grid{grid-template-columns:1fr}
    .ph-topic-label{font-size:10.5px;padding-top:16px}
    .ph-topic-list{gap:10px}
    .ph-topic-list li{
      background:#EEF3F9;
      border:1px solid #DCE5EF;
      border-left:4px solid var(--c);
      border-radius:10px;
    }
    .ph-topic-list a{padding:13px 14px;font-size:16px}
    .ph-topic p{font-size:14.5px}
    .ph-shelf-panel{grid-template-columns:1fr}
    .ph-about{grid-template-columns:1fr}
    .ph-hero h1{max-width:none}
    .ph-mark img{width:38px;height:38px}
    .ph-wordmark{font-size:15.5px}
    .ph-head-row{gap:8px}
    .ph-tagline{font-size:8.5px;letter-spacing:.16em;margin-top:2px}
    .ph-shelf-btn{font-size:11.5px;padding:10px 13px}
    .ph-shelf-btn .ph-full{display:none}
  }
  @media (prefers-reduced-motion:reduce){
    *{animation:none!important;transition:none!important}
    html{scroll-behavior:auto}
  }

/* ---------------------------------------------------------------
   Flatten the theme's wrappers so the design reaches both edges.
--------------------------------------------------------------- */
body.ph-home-page{overflow-x:hidden;}
body.ph-home-page *:has(.ph-home){
  max-width:none !important;width:auto !important;
  padding-left:0 !important;padding-right:0 !important;
  margin-left:0 !important;margin-right:0 !important;float:none !important;
}
body.ph-home-page *:has(> .ph-home){padding-top:0 !important;padding-bottom:0 !important;}
body.ph-home-page .entry-header,body.ph-home-page .page-header,
body.ph-home-page .entry-title,body.ph-home-page .page-title,
body.ph-home-page .breadcrumbs,body.ph-home-page .breadcrumb{display:none !important;}
body.ph-home-page .site-content,body.ph-home-page .content-area,
body.ph-home-page .site-main,body.ph-home-page .entry-content,
body.ph-home-page .page-content,body.ph-home-page .wp-block-post-content,
body.ph-home-page main,body.ph-home-page article:not(.ph-topic){
  margin:0 !important;padding-top:0 !important;
  padding-left:0 !important;padding-right:0 !important;
  max-width:none !important;width:auto !important;
}

/* ---------------------------------------------------------------
   The bottom half starts under the fixed header of the top plugin.
--------------------------------------------------------------- */
.ph-home-bottom{padding-top:0 !important;}

.ph-home .ph-shelf-cta,.ph-home .ph-shelf-cta:hover,.ph-home .ph-shelf-cta:visited{
  color:#fff !important;text-decoration:none !important;}
.ph-home .ph-topic-list a,.ph-home .ph-topic-list a:visited{
  color:var(--t-iot) !important;font-weight:600 !important;}
.ph-home .ph-topic-list li{
  background:#F5F8FB !important;border:1px solid #E2E9F1 !important;
  border-left:3px solid var(--c) !important;border-radius:8px !important;
  padding:0 !important;list-style:none !important;}
.ph-home .ph-topic-list li:hover{background:#fff !important;border-color:var(--c) !important;}
.ph-home .ph-topic-list a{padding:11px 13px !important;}
.ph-home .ph-topic-label{color:var(--ink-soft) !important;}
.ph-home .ph-topic-link,.ph-home .ph-topic-link:visited{color:var(--c) !important;}
.ph-home .ph-proof-cell a,.ph-home .ph-about a,.ph-home .ph-foot-links a{
  color:var(--crimson) !important;}
.ph-home .ph-foot-tag .ph-t-a{color:var(--navy) !important;}
.ph-home .ph-foot-tag .ph-t-b{color:var(--crimson) !important;}
.ph-home .ph-topic{padding:26px clamp(20px,2.4vw,30px) 24px !important;max-width:100% !important;}
.ph-home .ph-proof-cell{padding:22px clamp(16px,2vw,26px) 20px !important;}
.ph-home .ph-shelf-items div{padding:16px 18px !important;}

@media (max-width:720px){
  .ph-home .ph-topic-list li{
    background:#EEF3F9 !important;border:1px solid #DCE5EF !important;
    border-left:4px solid var(--c) !important;border-radius:10px !important;}
  .ph-home .ph-topic-list a{padding:13px 14px !important;font-size:16px !important;}
}