:root{
  --navy-950:#10151C;
  --navy-800:#1B2740;
  --white:#FFFFFF;
  --paper:#F6F8FA;
  --blue:#2F6FED;
  --blue-deep:#1E54C4;
  --sage:#5E9B80;
  --sage-dim:#EAF2ED;
  --line:#E2E6ED;
  --line-on-dark:rgba(255,255,255,0.14);
  --ink:#12161C;
  --text-muted:#5B6472;
  --text-muted-on-dark:#AEB8C9;
  --max:1200px;
  --sans:'Inter', -apple-system, sans-serif;
  --mono:'IBM Plex Mono', 'SFMono-Regular', monospace;
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto;}
  *{animation-duration:0.001ms !important; animation-iteration-count:1 !important; transition-duration:0.001ms !important;}
}

body{
  margin:0;
  font-family:var(--sans);
  color:var(--ink);
  background:var(--white);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}

a{color:inherit;}
img{max-width:100%; display:block;}
h1,h2,h3{margin:0; font-weight:600; letter-spacing:-0.01em;}
p{margin:0;}
ul{margin:0; padding:0;}

.wrap{max-width:var(--max); margin:0 auto; padding:0 32px;}
.mono{font-family:var(--mono);}
:focus-visible{outline:2px solid var(--blue); outline-offset:3px;}

/* ---- Nav ---- */
header.site-nav{
  position:sticky; top:0; z-index:50;
  background:rgba(255,255,255,0.92);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
}
.nav-row{display:flex; align-items:center; justify-content:space-between; padding:18px 0;}
.brand{display:flex; flex-direction:column; gap:1px; text-decoration:none;}
.brand-name{font-size:19px; font-weight:700; color:var(--navy-950);}
.brand-sub{font-family:var(--mono); font-size:11px; color:var(--text-muted);}

nav.primary-nav{display:flex; align-items:center; gap:30px; position:relative;}
nav.primary-nav > a{font-size:14.5px; text-decoration:none; color:var(--navy-950); padding:4px 0; border-bottom:1px solid transparent;}
nav.primary-nav > a:hover{border-bottom-color:var(--blue);}

.has-dropdown{position:relative;}
.has-dropdown::after{
  content:''; position:absolute; top:100%; left:0; right:0; height:14px;
}
.dropdown{
  display:none; position:absolute; top:100%; left:0; margin-top:14px;
  background:var(--white); border:1px solid var(--line); min-width:280px;
  box-shadow:0 12px 28px rgba(16,21,28,0.08); padding:8px;
}
.has-dropdown:hover .dropdown, .has-dropdown:focus-within .dropdown{display:block;}
.dropdown a{display:block; padding:11px 14px; font-size:14px; text-decoration:none; color:var(--ink);}
.dropdown a:hover{background:var(--paper); color:var(--blue-deep);}

.btn{
  display:inline-flex; align-items:center; justify-content:center; gap:8px;
  font-family:var(--sans); font-size:14.5px; font-weight:600;
  padding:12px 22px; border-radius:3px; text-decoration:none;
  cursor:pointer; border:1px solid transparent; white-space:nowrap;
}
.btn--primary{background:var(--blue); color:#fff;}
.btn--primary:hover{background:var(--blue-deep);}
.btn--ghost-dark{background:transparent; color:#fff; border-color:var(--line-on-dark);}
.btn--ghost-dark:hover{border-color:#fff;}
.btn--outline{background:transparent; color:var(--navy-950); border-color:var(--navy-950);}
.btn--outline:hover{background:var(--navy-950); color:#fff;}

.menu-toggle{display:none; background:none; border:none; cursor:pointer; padding:4px;}
.menu-toggle span{display:block; width:22px; height:2px; background:var(--navy-950); margin:5px 0;}

/* ---- Hero ---- */
.hero{position:relative; background:var(--navy-950); color:#fff; overflow:hidden; padding:88px 0 76px;}
.hero-diagram{position:absolute; inset:0; opacity:0.55; pointer-events:none;}
.hero-diagram svg{width:100%; height:100%;}
.hero-diagram path{fill:none; stroke:var(--blue); stroke-width:1.2;}
.hero-diagram .draw{stroke-dasharray:900; stroke-dashoffset:900; animation:draw 2.4s ease-out forwards;}
.hero-diagram circle{fill:var(--navy-950); stroke:var(--sage); stroke-width:1.4;}
@keyframes draw{ to{ stroke-dashoffset:0; } }

.badge{
  display:inline-block; font-family:var(--mono); font-size:12px; color:var(--text-muted-on-dark);
  border:1px solid var(--line-on-dark); padding:6px 13px; margin-bottom:24px;
}
.hero-inner{position:relative; z-index:2; max-width:740px;}
.hero h1{font-size:clamp(30px,4.2vw,48px); line-height:1.16; color:#fff; max-width:16ch;}
.hero-sub{margin-top:24px; font-size:16.5px; line-height:1.65; color:var(--text-muted-on-dark); max-width:58ch;}
.hero-ctas{display:flex; gap:16px; margin-top:36px; flex-wrap:wrap;}
.trust-row{position:relative; z-index:2; margin-top:60px; padding-top:26px; border-top:1px solid var(--line-on-dark); display:flex; flex-wrap:wrap; gap:10px;}
.trust-chip{font-family:var(--mono); font-size:12.5px; color:#E7ECF5; border:1px solid var(--line-on-dark); padding:7px 13px;}

/* ---- Page header (subpages) ---- */
.page-header{background:var(--navy-950); color:#fff; padding:64px 0 52px;}
.breadcrumb{font-family:var(--mono); font-size:12.5px; color:var(--text-muted-on-dark); margin-bottom:18px;}
.breadcrumb a{text-decoration:none; color:var(--text-muted-on-dark);}
.breadcrumb a:hover{color:#fff;}
.page-header h1{font-size:clamp(26px,3.4vw,38px); color:#fff; max-width:22ch; line-height:1.22;}
.page-header .lede{margin-top:18px; font-size:16px; color:var(--text-muted-on-dark); max-width:56ch; line-height:1.6;}

/* ---- Sections ---- */
section{padding:84px 0;}
section.alt{background:var(--paper);}
.section-head{max-width:640px; margin-bottom:48px;}
.section-kicker{font-family:var(--mono); font-size:12.5px; color:var(--blue-deep); margin-bottom:14px;}
.section-head h2{font-size:clamp(23px,2.5vw,31px); line-height:1.3;}
.section-head p{margin-top:16px; color:var(--text-muted); font-size:15.5px; line-height:1.65;}

/* ---- Pillars / cards ---- */
.pillar-grid{display:grid; grid-template-columns:repeat(4,1fr); border:1px solid var(--line); border-bottom:none;}
.pillar-card{padding:30px 26px; border-bottom:1px solid var(--line); border-left:1px solid var(--line);}
.pillar-card:first-child{border-left:none;}
.pillar-tag{font-family:var(--mono); font-size:11px; color:var(--sage); display:block; margin-bottom:16px;}
.pillar-card h3{font-size:16.5px; line-height:1.35; margin-bottom:10px;}
.pillar-card p{font-size:13.8px; color:var(--text-muted); line-height:1.6;}
.pillar-card a.card-link{display:inline-block; margin-top:16px; font-size:13.5px; font-weight:600; color:var(--blue-deep); text-decoration:none;}
.pillar-card a.card-link:hover{text-decoration:underline;}

/* ---- Differentiators ---- */
.diff-list{border-top:1px solid var(--line);}
.diff-row{display:grid; grid-template-columns:64px 1fr; gap:24px; padding:30px 0; border-bottom:1px solid var(--line);}
.diff-icon{width:40px; height:40px; border:1px solid var(--sage); display:flex; align-items:center; justify-content:center; color:var(--sage); font-family:var(--mono); font-size:13px;}
.diff-row h3{font-size:17px; margin-bottom:8px;}
.diff-row p{font-size:14.5px; color:var(--text-muted); line-height:1.6; max-width:66ch;}

/* ---- Offerings list (service subpages) ---- */
.offering-list{border-top:1px solid var(--line);}
.offering-row{display:grid; grid-template-columns:260px 1fr; gap:36px; padding:32px 0; border-bottom:1px solid var(--line);}
.offering-row h3{font-size:18px; line-height:1.35;}
.offering-row p{margin-top:10px; font-size:14.5px; color:var(--text-muted); line-height:1.65;}

/* ---- V-model / block diagram wrap ---- */
.diagram-frame{border:1px solid var(--line); background:var(--paper); padding:40px 20px; display:flex; justify-content:center;}

/* ---- Approach quote ---- */
.quote-block{
  background:var(--navy-950); color:#fff; padding:64px 0;
}
.quote-block blockquote{
  font-size:clamp(19px,2.2vw,25px); line-height:1.55; max-width:760px; margin:0;
  font-weight:500; color:#fff;
}
.quote-block blockquote::before{content:'“'; color:var(--sage);}
.quote-block blockquote::after{content:'”'; color:var(--sage);}

/* ---- Toolchain chips ---- */
.chip-row{display:flex; flex-wrap:wrap; gap:10px; margin-top:20px;}
.chip{font-family:var(--mono); font-size:12.5px; border:1px solid var(--line); padding:7px 13px; color:var(--navy-950);}

/* ---- About ---- */
.about-hero{display:grid; grid-template-columns:220px 1fr; gap:48px; align-items:start;}
.about-photo{width:220px; height:220px; object-fit:cover; border:1px solid var(--line); filter:grayscale(6%);}
.about-name{font-size:24px; margin-top:22px;}
.about-role{font-family:var(--mono); font-size:13px; color:var(--blue-deep); margin-top:6px;}
.stat-bar{display:flex; flex-wrap:wrap; gap:10px; margin-bottom:26px;}
.stat-chip{font-family:var(--mono); font-size:12px; border:1px solid var(--line); padding:6px 12px; color:var(--navy-950);}
.about-bio p{font-size:15.5px; line-height:1.75; color:var(--ink); margin-bottom:16px; max-width:64ch;}
.about-links{display:flex; gap:20px; margin-top:22px;}
.about-links a{font-size:14px; font-weight:600; color:var(--blue-deep); text-decoration:none;}
.about-links a:hover{text-decoration:underline;}

/* ---- Articles / Blog ---- */
.article-grid{display:grid; grid-template-columns:repeat(3,1fr); gap:0; border:1px solid var(--line); border-bottom:none;}
.article-card{padding:28px 26px; border-bottom:1px solid var(--line); border-left:1px solid var(--line); display:flex; flex-direction:column; text-decoration:none; color:inherit;}
.article-card:first-child{border-left:none;}
.article-meta{font-family:var(--mono); font-size:11.5px; color:var(--sage); margin-bottom:14px;}
.article-card h3{font-size:16.5px; line-height:1.4; margin-bottom:10px;}
.article-card p{font-size:13.8px; color:var(--text-muted); line-height:1.6; flex-grow:1;}
.article-card .read-more{margin-top:16px; font-size:13px; font-weight:600; color:var(--blue-deep);}
.article-empty{border:1px dashed var(--line); padding:56px 24px; text-align:center; color:var(--text-muted); font-size:14.5px;}

/* ---- Article detail (post) ---- */
.post-body{max-width:680px;}
.post-body p{font-size:16px; line-height:1.8; color:var(--ink); margin-bottom:20px;}
.post-body h2{font-size:20px; margin:36px 0 14px;}
.post-body ul{margin:0 0 20px; padding-left:20px;}
.post-body li{font-size:15.5px; line-height:1.7; margin-bottom:8px; color:var(--ink);}

/* ---- Profile / About ---- */
.profile-grid{display:grid; grid-template-columns:1fr 1.2fr; gap:64px; align-items:start;}
.profile-mark{font-family:var(--mono); font-size:56px; line-height:1; color:var(--blue); border-left:2px solid var(--blue); padding-left:22px;}
.profile-list{display:grid; gap:22px; list-style:none;}
.profile-list li{display:grid; grid-template-columns:22px 1fr; gap:14px; font-size:15.5px; color:var(--ink); line-height:1.6;}
.profile-list li::before{content:'—'; color:var(--blue); font-family:var(--mono);}
.profile-links{display:flex; gap:14px; margin-top:24px; flex-wrap:wrap;}
.profile-links a{font-family:var(--mono); font-size:13px; border:1px solid var(--line); padding:8px 14px; text-decoration:none; color:var(--navy-950);}
.profile-links a:hover{border-color:var(--blue); color:var(--blue-deep);}

.profile-photo-card{border:1px solid var(--line); background:var(--navy-950); max-width:340px;}
.profile-photo{position:relative; aspect-ratio:4/5; overflow:hidden; background:var(--navy-800);}
.profile-photo img{width:100%; height:100%; object-fit:cover; display:block; filter:grayscale(1) contrast(1.02); transition:filter 0.4s ease;}
.profile-photo-card:hover .profile-photo img{filter:grayscale(0) contrast(1.02);}
.profile-photo-badges{
  display:flex; flex-wrap:wrap; gap:6px 10px; padding:16px 18px;
  border-top:1px solid var(--line-on-dark);
}
.profile-photo-badges span{font-family:var(--mono); font-size:11px; color:var(--text-muted-on-dark); white-space:nowrap;}
.profile-photo-badges span::after{content:'·'; margin-left:10px; color:var(--line-on-dark);}
.profile-photo-badges span:last-child::after{content:'';}
.profile-name-block{margin-top:22px;}
.profile-name-block .name{font-size:19px; font-weight:600; color:var(--navy-950);}
.profile-name-block .title{font-family:var(--mono); font-size:12.5px; color:var(--text-muted); margin-top:3px;}

/* ---- Articles / Blog ---- */
.article-list{border-top:1px solid var(--line);}
.article-row{display:grid; grid-template-columns:120px 1fr; gap:32px; padding:32px 0; border-bottom:1px solid var(--line);}
.article-date{font-family:var(--mono); font-size:12.5px; color:var(--text-muted); padding-top:4px;}
.article-row h3{font-size:19px; line-height:1.35;}
.article-row a.article-title-link{text-decoration:none; color:var(--ink);}
.article-row a.article-title-link:hover{color:var(--blue-deep);}
.article-tag{font-family:var(--mono); font-size:11px; color:var(--sage); display:inline-block; margin-bottom:10px;}
.article-row p{margin-top:10px; font-size:14.5px; color:var(--text-muted); line-height:1.65; max-width:70ch;}
.article-row .read-more{display:inline-block; margin-top:12px; font-size:13.5px; font-weight:600; color:var(--blue-deep); text-decoration:none;}
.article-row .read-more:hover{text-decoration:underline;}

/* ---- Articles / Blog (dynamic grid) ---- */
.article-grid{display:grid; grid-template-columns:1fr 1fr; gap:22px;}
.article-card{
  background:var(--white); border:1px solid var(--line); padding:26px;
  display:flex; flex-direction:column; justify-content:space-between;
  text-decoration:none; color:inherit; cursor:pointer;
  transition:transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}
.article-card:hover{transform:translateY(-3px); border-color:var(--blue); box-shadow:0 16px 32px rgba(47,111,237,0.10);}
.article-card .card-meta{display:flex; justify-content:space-between; font-family:var(--mono); font-size:11px; color:var(--text-muted); margin-bottom:14px;}
.article-card h2{font-size:18px; line-height:1.4; margin-bottom:10px; color:var(--navy-950);}
.article-card:hover h2{color:var(--blue-deep);}
.article-card p{font-size:14px; color:var(--text-muted); line-height:1.6; margin-bottom:18px;}
.article-card .card-tags{display:flex; flex-wrap:wrap; gap:8px; padding-top:14px; border-top:1px solid var(--line);}
.tag-badge{
  font-family:var(--mono); font-size:10px; font-weight:500; letter-spacing:0.03em;
  color:var(--blue-deep); background:rgba(47,111,237,0.08); border:1px solid rgba(47,111,237,0.2);
  padding:3px 8px; text-transform:uppercase;
}
.directory-status{font-family:var(--mono); font-size:12.5px; color:var(--text-muted); padding:24px 0;}
.directory-error{
  background:#FBEFEF; border:1px solid #E3B8B8; color:#8A3A3A;
  padding:16px; font-family:var(--mono); font-size:13px; margin-bottom:24px; display:none;
}

/* ---- Article shell (single post) ---- */
.article-body{max-width:720px; padding:0 0 40px;}
.article-body .article-meta-row{display:flex; gap:16px; font-family:var(--mono); font-size:12.5px; color:var(--text-muted); margin-bottom:18px;}
.article-body h1{font-size:clamp(26px,3.4vw,36px); line-height:1.28; margin-bottom:22px;}
.article-body .article-tags{display:flex; gap:8px; margin-bottom:28px; flex-wrap:wrap;}
.article-content{font-size:16px; line-height:1.75; color:var(--ink);}
.article-content p{margin-bottom:20px;}
.article-content h2{font-size:21px; margin:34px 0 14px;}
.article-content h3{font-size:18px; margin:28px 0 12px;}
.article-content ul, .article-content ol{margin:0 0 20px 22px;}
.article-content li{margin-bottom:8px; line-height:1.65;}
.article-content code{font-family:var(--mono); background:var(--paper); padding:2px 6px; font-size:14px;}

/* ---- Contact ---- */
.contact-grid{display:grid; grid-template-columns:1fr 1fr; gap:64px;}
form.contact-form{display:grid; gap:16px;}
.field{display:grid; gap:7px;}
.field label{font-family:var(--mono); font-size:12px; color:var(--text-muted);}
.field input, .field select, .field textarea{
  font-family:var(--sans); font-size:15px; padding:12px 14px;
  border:1px solid var(--line); background:#fff; color:var(--ink); border-radius:3px;
}
.field textarea{resize:vertical; min-height:90px;}
.field-row{display:grid; grid-template-columns:1fr 1fr; gap:16px;}
.location-note{margin-top:28px; padding-top:24px; border-top:1px solid var(--line); font-size:14px; color:var(--text-muted);}
.location-note .mono{color:var(--navy-950);}

/* ---- Footer ---- */
footer{background:var(--navy-950); color:var(--text-muted-on-dark); padding:56px 0 36px;}
.footer-top{display:flex; justify-content:space-between; gap:40px; flex-wrap:wrap; padding-bottom:36px; border-bottom:1px solid var(--line-on-dark);}
.footer-brand .brand-name{color:#fff;}
.footer-brand p{margin-top:10px; font-size:13.5px; max-width:32ch;}
.footer-links{display:flex; gap:56px; flex-wrap:wrap;}
.footer-col h4{font-family:var(--mono); font-size:11.5px; color:#E7ECF5; margin:0 0 14px; font-weight:500;}
.footer-col a{display:block; font-size:13.5px; text-decoration:none; margin-bottom:9px; color:var(--text-muted-on-dark);}
.footer-col a:hover{color:#fff;}
.footer-bottom{display:flex; justify-content:space-between; gap:20px; flex-wrap:wrap; padding-top:24px; font-size:12.5px; font-family:var(--mono);}

/* ---- Responsive ---- */
@media (max-width:980px){
  .pillar-grid{grid-template-columns:1fr 1fr;}
  .pillar-card:nth-child(odd){border-left:none;}
  .offering-row{grid-template-columns:1fr; gap:8px;}
  .contact-grid{grid-template-columns:1fr; gap:36px;}
  .about-hero{grid-template-columns:1fr;}
  .article-grid{grid-template-columns:1fr 1fr;}
  .article-card:nth-child(odd){border-left:none;}
}
@media (max-width:720px){
  .wrap{padding:0 20px;}
  nav.primary-nav{
    position:fixed; inset:64px 0 0 0; background:var(--white);
    flex-direction:column; align-items:flex-start; padding:28px 24px; gap:6px;
    transform:translateX(100%); transition:transform 0.25s ease; border-top:1px solid var(--line);
    overflow-y:auto;
  }
  nav.primary-nav.open{transform:translateX(0);}
  nav.primary-nav > a{font-size:17px; padding:10px 0;}
  .dropdown{display:block; position:static; border:none; box-shadow:none; margin-top:4px; padding-left:12px;}
  .menu-toggle{display:block;}
  .nav-cta .btn--primary{display:none;}
  .pillar-grid{grid-template-columns:1fr;}
  .pillar-card{border-left:none !important;}
  .diff-row{grid-template-columns:1fr; gap:12px;}
  .field-row{grid-template-columns:1fr;}
  .footer-top{flex-direction:column;}
  .article-grid{grid-template-columns:1fr;}
  .article-card{border-left:none !important;}
}