:root{
  --graphite:#26282C; --graphite-2:#303339; --steel:#8A8F98; --steel-light:#AEB3BB;
  --amber:#C9A227; --amber-dark:#A8841E; --paper:#F5F5F3; --paper-2:#ECECE9;
  --ink:#26282C; --slate:#5B5F66; --line:rgba(154,160,168,0.18);
}
*{margin:0;padding:0;box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{font-family:'Inter',sans-serif;color:var(--ink);background:var(--paper);-webkit-font-smoothing:antialiased;}
h1,h2,h3,h4{font-family:'Oswald',sans-serif;text-transform:uppercase;letter-spacing:0.02em;}
a{text-decoration:none;color:inherit;}
.mono{font-family:'IBM Plex Mono',monospace;}
.wrap{max-width:1180px;margin:0 auto;padding:0 24px;}
img{max-width:100%;display:block;}

/* Header */
header{position:sticky;top:0;z-index:100;background:rgba(27,31,35,0.97);backdrop-filter:blur(6px);border-bottom:1px solid rgba(201,162,39,0.25);}
.topbar{display:flex;align-items:center;justify-content:space-between;padding:14px 24px;max-width:1180px;margin:0 auto;}
.logo{display:flex;align-items:center;gap:10px;color:#fff;}
.logo-mark{width:40px;height:40px;border:2px solid var(--amber);display:flex;align-items:center;justify-content:center;font-family:'Oswald';font-weight:700;color:var(--amber);font-size:16px;}
.logo-text{font-family:'Oswald';font-weight:600;font-size:19px;letter-spacing:0.04em;}
.logo-sub{font-family:'IBM Plex Mono';font-size:9px;color:var(--amber);letter-spacing:0.1em;display:block;margin-top:2px;}
nav{display:flex;align-items:center;gap:24px;}
nav a{color:#D8DBDE;font-size:13px;font-weight:500;letter-spacing:0.03em;text-transform:uppercase;transition:color .2s;}
nav a:hover,nav a.active{color:var(--amber);}
.hotline-badge{display:flex;align-items:center;gap:8px;color:#fff;font-family:'IBM Plex Mono';font-size:12.5px;border-left:1px solid rgba(255,255,255,0.15);padding-left:18px;}
.hotline-badge b{color:var(--amber);}
.cta-btn{background:var(--amber);color:var(--graphite);font-weight:600;font-size:13px;padding:10px 18px;text-transform:uppercase;letter-spacing:0.04em;border:none;cursor:pointer;display:inline-block;}
.cta-btn:hover{background:var(--amber-dark);}
.cta-btn.ghost{background:transparent;border:1.5px solid rgba(255,255,255,0.35);color:#fff;}
.cta-btn.ghost:hover{border-color:var(--amber);color:var(--amber);}
.menu-toggle{display:none;background:none;border:none;color:#fff;font-size:22px;cursor:pointer;}

/* Page hero (subpages) */
.page-hero{position:relative;background:var(--graphite);color:#fff;padding:64px 24px 54px;overflow:hidden;}
.blueprint-grid{position:absolute;inset:0;background-image:linear-gradient(rgba(154,160,168,0.35) 1px,transparent 1px),linear-gradient(90deg,rgba(154,160,168,0.35) 1px,transparent 1px);background-size:44px 44px;mask-image:radial-gradient(ellipse at 30% 30%,black 20%,transparent 75%);}
.page-hero-inner{position:relative;max-width:1180px;margin:0 auto;}
.breadcrumb{font-family:'IBM Plex Mono';font-size:11.5px;color:#8A929A;margin-bottom:16px;letter-spacing:0.05em;}
.breadcrumb a{color:#B9C0C6;} .breadcrumb a:hover{color:var(--amber);}
.page-hero h1{font-size:32px;line-height:1.2;max-width:680px;}
.page-hero p.lead{margin-top:16px;font-size:15.5px;color:#B9C0C6;max-width:620px;line-height:1.7;}
.eyebrow{font-family:'IBM Plex Mono';font-size:12px;color:var(--amber);letter-spacing:0.14em;text-transform:uppercase;margin-bottom:14px;display:flex;align-items:center;gap:10px;}
.eyebrow::before{content:'';width:24px;height:1px;background:var(--amber);}

/* Hero (homepage) */
.hero{position:relative;background:var(--graphite);color:#fff;padding:100px 24px 90px;overflow:hidden;}
.hero .blueprint-grid{animation:driftGrid 60s linear infinite;}
@keyframes driftGrid{from{background-position:0 0,0 0;}to{background-position:440px 0,0 440px;}}
.hero-inner{position:relative;max-width:1180px;margin:0 auto;display:grid;grid-template-columns:1.15fr 0.85fr;gap:50px;align-items:center;}
.hero h1{font-size:44px;line-height:1.12;font-weight:600;max-width:560px;}
.hero h1 span{color:var(--amber);}
.hero p.lead{margin-top:22px;font-size:16.5px;color:#B9C0C6;max-width:480px;line-height:1.7;}
.hero-ctas{margin-top:32px;display:flex;gap:14px;flex-wrap:wrap;}
.hero-panel{border:1px solid rgba(201,162,39,0.35);padding:24px;position:relative;background:rgba(255,255,255,0.02);}
.hero-panel::before,.hero-panel::after{content:'';position:absolute;width:14px;height:14px;border-top:2px solid var(--amber);border-left:2px solid var(--amber);top:-1px;left:-1px;}
.hero-panel::after{top:auto;left:auto;bottom:-1px;right:-1px;border:none;border-bottom:2px solid var(--amber);border-right:2px solid var(--amber);}
.spec-row{display:flex;justify-content:space-between;padding:11px 0;border-bottom:1px dashed rgba(255,255,255,0.12);font-size:13px;}
.spec-row:last-child{border-bottom:none;}
.spec-row span:first-child{color:#8A929A;font-family:'IBM Plex Mono';font-size:11px;text-transform:uppercase;letter-spacing:0.07em;}
.spec-row span:last-child{font-weight:600;color:#fff;}

/* Stats */
.stats{background:var(--steel);color:#fff;}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);max-width:1180px;margin:0 auto;}
.stat-item{padding:28px 24px;text-align:center;border-left:1px solid rgba(255,255,255,0.15);}
.stat-item:first-child{border-left:none;}
.stat-num{font-family:'Oswald';font-size:30px;font-weight:600;color:var(--amber);}
.stat-label{font-size:11.5px;color:#D2DAE0;margin-top:6px;}

/* Sections */
section.pad{padding:80px 24px;}
.section-head{max-width:640px;margin-bottom:44px;}
.section-head h2{font-size:30px;color:var(--ink);font-weight:600;line-height:1.2;}
.section-head p{margin-top:12px;color:var(--slate);font-size:15px;line-height:1.7;}

/* Category / article grid */
.cat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);border:1px solid var(--line);}
.cat-card{background:var(--paper);padding:28px 22px;position:relative;min-height:180px;display:flex;flex-direction:column;justify-content:space-between;transition:background .25s;}
.cat-card:hover{background:var(--graphite);color:#fff;}
.cat-card:hover .cat-code{color:var(--amber);}
.cat-card:hover .cat-arrow{color:var(--amber);transform:translateX(4px);}
.cat-code{font-family:'IBM Plex Mono';font-size:11.5px;color:var(--steel);letter-spacing:0.08em;}
.cat-name{font-family:'Oswald';font-size:18px;font-weight:600;margin-top:12px;line-height:1.25;}
.cat-foot{display:flex;align-items:center;justify-content:space-between;margin-top:18px;}
.cat-arrow{transition:transform .25s,color .25s;color:var(--slate);}
.cat-desc{font-size:12.5px;color:var(--slate);}
.cat-card:hover .cat-desc{color:#B9C0C6;}

.article-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.article-card{border:1px solid var(--line);background:#fff;padding:26px 22px;position:relative;transition:box-shadow .2s;}
.article-card:hover{box-shadow:0 8px 24px rgba(27,31,35,0.08);}
.article-tag{font-family:'IBM Plex Mono';font-size:11px;color:var(--amber-dark);letter-spacing:0.08em;}
.article-card h3{font-family:'Oswald';font-size:17px;margin:12px 0 10px;line-height:1.3;color:var(--ink);}
.article-card p{font-size:13.5px;color:var(--slate);line-height:1.6;}
.article-more{margin-top:14px;font-family:'IBM Plex Mono';font-size:12px;color:var(--steel);}

/* Article body (single article page) */
.article-body{max-width:760px;margin:0 auto;}
.article-body h2{font-size:22px;color:var(--ink);margin:34px 0 14px;}
.article-body p{font-size:15.5px;line-height:1.85;color:#3B4148;margin-bottom:16px;}
.article-body ul{margin:0 0 16px 20px;color:#3B4148;font-size:15px;line-height:1.8;}
.article-cta{margin-top:40px;padding:26px;background:var(--paper-2);border-left:3px solid var(--amber);font-size:15px;}

/* Product page body */
.prod-body{max-width:820px;}
.prod-body h2{font-size:22px;color:var(--ink);margin:30px 0 14px;}
.prod-body p{font-size:15.5px;line-height:1.85;color:#3B4148;margin-bottom:14px;}
.prod-body ul{margin:0 0 16px 20px;color:#3B4148;font-size:15px;line-height:1.8;}
.related{display:flex;gap:12px;flex-wrap:wrap;margin-top:16px;}
.related a{font-family:'IBM Plex Mono';font-size:12.5px;color:var(--steel);border:1px solid var(--line);padding:8px 14px;}
.related a:hover{border-color:var(--amber);color:var(--amber-dark);}

/* Why grid */
.why-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;}
.why-card{padding:26px 22px;border:1px solid var(--line);background:#fff;position:relative;}
.why-card::before,.why-card::after{content:'';position:absolute;width:10px;height:10px;border-top:2px solid var(--steel);border-left:2px solid var(--steel);top:-1px;left:-1px;}
.why-card::after{top:auto;left:auto;bottom:-1px;right:-1px;border:none;border-bottom:2px solid var(--steel);border-right:2px solid var(--steel);}
.why-icon{font-family:'IBM Plex Mono';font-size:11.5px;color:var(--amber-dark);margin-bottom:14px;letter-spacing:0.1em;}
.why-card h4{font-family:'Oswald';font-size:16px;margin-bottom:8px;color:var(--ink);}
.why-card p{font-size:13.3px;color:var(--slate);line-height:1.6;}

/* Process */
.process{background:var(--paper-2);}
.process-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:0;position:relative;}
.process-step{padding:0 18px;position:relative;}
.process-step:not(:last-child)::after{content:'';position:absolute;top:24px;right:-10px;width:20px;height:1px;background:repeating-linear-gradient(90deg,var(--steel) 0 6px,transparent 6px 10px);}
.step-num{font-family:'Oswald';font-size:14px;color:var(--amber);font-weight:600;width:48px;height:48px;border:1.5px solid var(--steel);border-radius:50%;display:flex;align-items:center;justify-content:center;margin-bottom:18px;background:var(--paper-2);}
.process-step h4{font-size:15.5px;color:var(--ink);margin-bottom:8px;}
.process-step p{font-size:13.3px;color:var(--slate);line-height:1.6;}

/* Form */
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
.form-grid.full{grid-template-columns:1fr;}
.field{display:flex;flex-direction:column;gap:6px;}
.field label{font-size:12.5px;color:#B9C0C6;font-family:'IBM Plex Mono';text-transform:uppercase;letter-spacing:0.05em;}
.field input,.field select,.field textarea{background:rgba(255,255,255,0.06);border:1px solid rgba(255,255,255,0.18);color:#fff;padding:12px 14px;font-family:'Inter';font-size:14px;}
.field textarea{resize:vertical;min-height:100px;}
.field input:focus,.field select:focus,.field textarea:focus{outline:1.5px solid var(--amber);}

/* Contact */
.contact{background:var(--graphite);color:#fff;}
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:56px;}
.contact .section-head h2{color:#fff;}
.contact .section-head p{color:#B9C0C6;}
.contact-info{display:grid;gap:20px;margin-top:6px;}
.contact-row{display:flex;gap:16px;align-items:flex-start;border-bottom:1px solid rgba(255,255,255,0.1);padding-bottom:16px;}
.contact-tag{font-family:'IBM Plex Mono';font-size:10.5px;color:var(--amber);text-transform:uppercase;letter-spacing:0.1em;width:80px;flex-shrink:0;padding-top:3px;}
.contact-row div b{display:block;font-size:14.5px;margin-bottom:2px;}
.contact-row div span{font-size:13px;color:#B9C0C6;}
.map-frame{border:1px solid rgba(201,162,39,0.3);height:100%;min-height:320px;}
.map-frame iframe{width:100%;height:100%;min-height:320px;border:0;filter:grayscale(0.3) contrast(1.05);}

/* Checklist box */
.check-box{background:#fff;border:1px solid var(--line);padding:26px;}
.check-box li{list-style:none;padding:10px 0;border-bottom:1px dashed var(--line);font-size:14.5px;color:var(--ink);display:flex;gap:10px;}
.check-box li:last-child{border-bottom:none;}
.check-box li::before{content:'0'attr(data-n);font-family:'IBM Plex Mono';color:var(--amber-dark);font-weight:600;}

/* Footer */
footer{background:#14171A;color:#8A929A;padding:36px 24px 22px;}
.footer-grid{display:flex;justify-content:space-between;align-items:flex-start;flex-wrap:wrap;gap:24px;max-width:1180px;margin:0 auto;}
.footer-links{display:flex;gap:24px;flex-wrap:wrap;}
.footer-links a{font-size:13px;color:#B9C0C6;}
.footer-links a:hover{color:var(--amber);}
.footer-bottom{max-width:1180px;margin:22px auto 0;padding-top:18px;border-top:1px solid rgba(255,255,255,0.08);font-size:11.5px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;}

.spec-table{width:100%;border-collapse:collapse;margin:18px 0 30px;font-size:14px;}
.spec-table th,.spec-table td{border:1px solid var(--line);padding:11px 14px;text-align:left;}
.spec-table th{background:var(--paper-2);font-family:'IBM Plex Mono';font-size:11.5px;text-transform:uppercase;letter-spacing:0.05em;color:var(--slate);}
.spec-table td{color:#3B4148;}
.faq-item{border-bottom:1px solid var(--line);padding:18px 0;}
.faq-item:first-child{padding-top:0;}
.faq-item h3{font-size:16px;color:var(--ink);margin-bottom:8px;font-family:'Inter',sans-serif;text-transform:none;letter-spacing:0;font-weight:600;}
.faq-item p{font-size:14.5px;color:var(--slate);line-height:1.7;margin:0;}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin:14px 0 8px;}
.tag-pill{font-family:'IBM Plex Mono';font-size:11.5px;color:var(--steel);background:var(--paper-2);border:1px solid var(--line);padding:5px 12px;}

.reveal{opacity:0;transform:translateY(16px);transition:opacity .6s ease,transform .6s ease;}
.reveal.show{opacity:1;transform:none;}

@media (max-width:980px){
  nav{display:none;}
  .menu-toggle{display:block;}
  .hero-inner{grid-template-columns:1fr;}
  .hero h1{font-size:32px;}
  .stats-grid{grid-template-columns:repeat(2,1fr);}
  .stat-item:nth-child(2){border-left:1px solid rgba(255,255,255,0.15);}
  .stat-item:nth-child(3){border-left:none;}
  .cat-grid{grid-template-columns:repeat(2,1fr);}
  .article-grid{grid-template-columns:repeat(2,1fr);}
  .process-grid{grid-template-columns:repeat(2,1fr);gap:26px 0;}
  .process-step:nth-child(2)::after{display:none;}
  .why-grid{grid-template-columns:repeat(2,1fr);}
  .contact-grid{grid-template-columns:1fr;}
  .form-grid{grid-template-columns:1fr;}
}
@media (max-width:560px){
  .cat-grid,.why-grid,.process-grid,.article-grid{grid-template-columns:1fr;}
  .process-step::after{display:none;}
  .stats-grid{grid-template-columns:repeat(2,1fr);}
}
:focus-visible{outline:2px solid var(--amber);outline-offset:2px;}
@media (prefers-reduced-motion: reduce){.hero .blueprint-grid{animation:none;} .reveal{transition:none;opacity:1;transform:none;}}