/* ============================================================
   DESIGN TOKENS
   Concept: enterprise architecture / blueprint drafting.
   Ink = deep blueprint blue sections. Paper = vellum content sections.
   ============================================================ */
:root{
  --ink-900: #0F2438;      /* deepest blueprint blue */
  --ink-800: #1B3A5C;      /* primary blueprint blue */
  --ink-700: #2A4E73;      /* lighter blueprint blue, borders on ink */
  --paper:   #ECEFF2;      /* cool vellum paper */
  --paper-line: #D3D9DE;   /* hairline on paper */
  --text-ink: #17202B;     /* near-black navy for body text on paper */
  --text-on-ink: #E8EEF3;  /* body text on blueprint sections */
  --text-on-ink-dim: #A9BBCB;
  --amber: #B8873D;        /* dimension-line / annotation accent */
  --amber-bright: #D6A354;

  --font-display: 'Space Grotesk', sans-serif;
  --font-body: 'IBM Plex Sans', sans-serif;
  --font-mono: 'IBM Plex Mono', monospace;

  --maxw: 1120px;
}

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

body{
  margin:0;
  font-family:var(--font-body);
  color:var(--text-ink);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
  line-height:1.55;
}

h1,h2,h3{ font-family:var(--font-display); margin:0; line-height:1.1; }
p{ margin:0; }
ul{ margin:0; padding:0; list-style:none; }
a{ color:inherit; text-decoration:none; }

.section-inner, .footer-inner, .hero-inner, .topbar-inner{
  max-width:var(--maxw);
  margin:0 auto;
  padding-left:28px;
  padding-right:28px;
}

/* ============================================================
   TOP NAVIGATION
   ============================================================ */
.topbar{
  position:sticky; top:0; z-index:50;
  background:rgba(15,36,56,0.92);
  backdrop-filter:blur(6px);
  border-bottom:1px solid var(--ink-700);
}
.topbar-inner{
  display:flex; align-items:center; justify-content:space-between;
  padding-top:12px; padding-bottom:12px;
  color:var(--text-on-ink);
}
.mark{ color:var(--amber-bright); display:flex; }
.mainnav{ display:flex; gap:28px; }
.mainnav a{
  font-family:var(--font-mono);
  font-size:0.72rem;
  letter-spacing:0.09em;
  text-transform:uppercase;
  color:var(--text-on-ink-dim);
  padding:6px 0;
  border-bottom:1px solid transparent;
  transition:color .15s ease, border-color .15s ease;
}
.mainnav a:hover, .mainnav a:focus-visible{ color:var(--text-on-ink); border-color:var(--amber); }
.nav-cta{ color:var(--amber-bright) !important; }
.navtoggle{
  display:none; background:none; border:none; cursor:pointer;
  width:34px; height:28px; flex-direction:column; justify-content:space-between; padding:0;
}
.navtoggle span{ display:block; height:2px; background:var(--text-on-ink); border-radius:1px; }

/* ============================================================
   BLUEPRINT GRID BACKGROUND (signature texture)
   ============================================================ */
.blueprint-grid{
  position:absolute; inset:0;
  background-image:
    linear-gradient(rgba(232,238,243,0.055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(232,238,243,0.055) 1px, transparent 1px);
  background-size:40px 40px;
  pointer-events:none;
}

/* ============================================================
   HERO
   ============================================================ */
.hero{
  position:relative;
  background:linear-gradient(160deg, var(--ink-900) 0%, var(--ink-800) 100%);
  color:var(--text-on-ink);
  padding:96px 0 88px;
  overflow:hidden;
}
.hero-inner{ position:relative; z-index:1; }
.eyebrow{
  font-family:var(--font-mono);
  font-size:0.78rem;
  letter-spacing:0.14em;
  text-transform:uppercase;
  color:var(--amber-bright);
  margin-bottom:18px;
}
.hero-name{
  font-size:clamp(2.6rem, 6vw, 4.6rem);
  font-weight:600;
  letter-spacing:-0.01em;
}
.hero-role{
  font-family:var(--font-mono);
  font-size:1.05rem;
  color:var(--text-on-ink-dim);
  margin-top:14px;
}
.hero-lede{
  max-width:640px;
  margin-top:26px;
  font-size:1.08rem;
  color:var(--text-on-ink);
  opacity:0.92;
}
.hero-actions{ display:flex; gap:16px; margin-top:38px; flex-wrap:wrap; }
.btn{
  font-family:var(--font-mono);
  font-size:0.85rem;
  letter-spacing:0.03em;
  padding:13px 26px;
  border-radius:2px;
  border:1px solid transparent;
  display:inline-block;
  transition:transform .15s ease, background .15s ease, border-color .15s ease;
}
.btn-primary{ background:var(--amber); color:var(--ink-900); font-weight:600; }
.btn-primary:hover{ background:var(--amber-bright); transform:translateY(-1px); }
.btn-ghost{ border-color:var(--ink-700); color:var(--text-on-ink); }
.btn-ghost:hover{ border-color:var(--text-on-ink-dim); transform:translateY(-1px); }

/* Dimension strip — the signature element:
   metrics rendered like architectural measurement callouts */
.dimension-strip{
  margin:64px 0 0;
  padding-top:30px;
  border-top:1px solid var(--ink-700);
  display:grid;
  grid-template-columns:repeat(5, minmax(0,1fr));
  gap:22px;
}
.dim{ position:relative; padding-left:14px; }
.dim .tick{
  position:absolute; left:0; top:2px;
  color:var(--amber);
  font-family:var(--font-mono);
}
.dim dt{
  font-family:var(--font-mono);
  font-size:1.5rem;
  font-weight:600;
  color:var(--amber-bright);
  margin:0;
}
.dim dd{
  margin:4px 0 0;
  font-size:0.78rem;
  color:var(--text-on-ink-dim);
  letter-spacing:0.01em;
}

/* ============================================================
   SECTION SHELLS
   ============================================================ */
.section{ padding:88px 0; }
.section.paper{ background:var(--paper); color:var(--text-ink); }
.section.ink{ background:var(--ink-900); color:var(--text-on-ink); }
.kicker{
  font-family:var(--font-mono);
  font-size:0.75rem;
  letter-spacing:0.12em;
  text-transform:uppercase;
  color:var(--amber);
  margin-bottom:14px;
}
.section h2{
  font-size:clamp(1.7rem, 3vw, 2.3rem);
  margin-bottom:34px;
}
.section.ink .kicker{ color:var(--amber-bright); }

/* ============================================================
   SUMMARY
   ============================================================ */
.summary-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:40px;
  border-top:1px solid var(--paper-line);
  padding-top:34px;
}
.summary-lead{ font-size:1.18rem; font-weight:500; }
.summary-grid p{ font-size:1rem; }

/* ============================================================
   EXPERIENCE TIMELINE — schematic path styling
   ============================================================ */
.timeline{
  position:relative;
  margin-top:10px;
  padding-left:26px;
  border-left:1px solid var(--ink-700);
}
.role{ position:relative; padding-bottom:56px; }
.role:last-child{ padding-bottom:0; }
.role-node{
  position:absolute; left:-31px; top:6px;
  width:10px; height:10px;
  background:var(--ink-900);
  border:2px solid var(--amber);
}
.role-dates{
  font-family:var(--font-mono);
  font-size:0.78rem;
  color:var(--amber-bright);
  letter-spacing:0.04em;
  margin-bottom:10px;
}
.role-card h3{
  font-size:1.28rem;
  font-weight:600;
  color:var(--text-on-ink);
}
.role-card h3 span{
  font-family:var(--font-body);
  font-weight:400;
  font-size:0.95rem;
  color:var(--text-on-ink-dim);
  display:block;
  margin-top:4px;
}
.role-company{
  font-family:var(--font-mono);
  font-size:0.85rem;
  color:var(--text-on-ink-dim);
  margin-top:8px;
  margin-bottom:16px;
}
.role-card ul{ display:flex; flex-direction:column; gap:9px; max-width:720px; }
.role-card li{
  position:relative; padding-left:18px; font-size:0.98rem; color:var(--text-on-ink);
}
.role-card li::before{
  content:"—"; position:absolute; left:0; color:var(--text-on-ink-dim);
}
.role-card strong{ color:var(--amber-bright); font-weight:600; }
.role-earlier .role-card{ opacity:0.88; }

/* ============================================================
   SELECTED ENGAGEMENTS — spec sheet cards
   ============================================================ */
.spec-grid{
  display:grid;
  grid-template-columns:repeat(2, minmax(0,1fr));
  gap:24px;
  border-top:1px solid var(--paper-line);
  padding-top:34px;
}
.spec-card{
  background:#fff;
  border:1px solid var(--paper-line);
  padding:30px 28px;
}
.spec-tag{
  font-family:var(--font-mono);
  font-size:0.72rem;
  letter-spacing:0.08em;
  text-transform:uppercase;
  color:var(--ink-700);
  margin-bottom:12px;
}
.spec-card h3{ font-size:1.2rem; margin-bottom:12px; }
.spec-card p{ font-size:0.98rem; margin-bottom:22px; }
.spec-metric{
  border-top:1px dashed var(--paper-line);
  padding-top:16px;
  display:flex; flex-direction:column; gap:2px;
}
.spec-metric-value{
  font-family:var(--font-mono);
  font-size:1.15rem;
  font-weight:600;
  color:var(--ink-800);
}
.spec-metric-label{
  font-size:0.82rem;
  color:#5B6672;
}

/* ============================================================
   EXPERTISE
   ============================================================ */
.expertise-grid{
  display:grid;
  grid-template-columns:repeat(auto-fit, minmax(220px, 1fr));
  gap:36px;
  border-top:1px solid var(--ink-700);
  padding-top:34px;
}
.expertise-group h3{
  font-size:0.95rem;
  font-family:var(--font-mono);
  text-transform:uppercase;
  letter-spacing:0.04em;
  color:var(--amber-bright);
  margin-bottom:16px;
}
.chips li{
  font-size:0.94rem;
  padding:9px 0;
  border-bottom:1px solid var(--ink-700);
  color:var(--text-on-ink);
}
.chips li:last-child{ border-bottom:none; }

/* ============================================================
   TECHNOLOGY STACK — layered diagram
   ============================================================ */
.stack-diagram{
  border-top:1px solid var(--paper-line);
  padding-top:6px;
}
.stack-layer{
  display:grid;
  grid-template-columns:220px 1fr;
  gap:24px;
  padding:20px 0;
  border-bottom:1px solid var(--paper-line);
  align-items:baseline;
}
.stack-label{
  font-family:var(--font-mono);
  font-size:0.82rem;
  letter-spacing:0.03em;
  color:var(--ink-800);
  font-weight:600;
}
.stack-layer p{ font-size:0.94rem; color:#3C4650; }

/* ============================================================
   EDUCATION
   ============================================================ */
.edu-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:40px;
  border-top:1px solid var(--ink-700);
  padding-top:34px;
}
.edu-list li{
  padding:10px 0;
  border-bottom:1px solid var(--ink-700);
  font-size:0.98rem;
}
.edu-list li:last-child{ border-bottom:none; }
.edu-list strong{ color:var(--text-on-ink); }

/* ============================================================
   INSIGHTS NOTICE
   ============================================================ */
.insights-note{ padding:56px 0; }
.insights-inner{ text-align:center; }
.insights-text{
  font-size:0.98rem;
  color:#5B6672;
  max-width:520px;
  margin:0 auto;
}

/* ============================================================
   FOOTER
   ============================================================ */
.footer{
  position:relative;
  background:linear-gradient(160deg, var(--ink-800) 0%, var(--ink-900) 100%);
  color:var(--text-on-ink);
  padding:84px 0 42px;
  text-align:center;
  overflow:hidden;
}
.footer-inner{ position:relative; z-index:1; }
.footer h2{ font-size:clamp(1.7rem, 3vw, 2.4rem); margin-bottom:14px; }
.footer-lede{ color:var(--text-on-ink-dim); margin-bottom:34px; }
.footer-links{
  display:flex; justify-content:center; gap:30px; flex-wrap:wrap;
  font-family:var(--font-mono); font-size:0.9rem;
  margin-bottom:56px;
}
.footer-links a{ border-bottom:1px solid var(--ink-700); padding-bottom:3px; transition:border-color .15s ease, color .15s ease; }
.footer-links a:hover{ color:var(--amber-bright); border-color:var(--amber-bright); }
.footer-copyright{
  font-family:var(--font-mono);
  font-size:0.72rem;
  color:var(--text-on-ink-dim);
}

/* ============================================================
   SCROLL REVEAL (subtle, respects reduced motion)
   ============================================================ */
.reveal{ opacity:0; transform:translateY(14px); transition:opacity .6s ease, transform .6s ease; }
.reveal.is-visible{ opacity:1; transform:translateY(0); }

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 860px){
  .mainnav{
    position:absolute; top:100%; left:0; right:0;
    background:var(--ink-900);
    flex-direction:column; gap:0;
    max-height:0; overflow:hidden;
    border-bottom:1px solid var(--ink-700);
  }
  .mainnav.open{ max-height:400px; }
  .mainnav a{ padding:16px 28px; border-bottom:1px solid var(--ink-700); }
  .navtoggle{ display:flex; }

  .dimension-strip{ grid-template-columns:repeat(2, minmax(0,1fr)); }
  .summary-grid, .edu-grid{ grid-template-columns:1fr; }
  .spec-grid{ grid-template-columns:1fr; }
  .stack-layer{ grid-template-columns:1fr; gap:6px; }
}

@media (max-width: 480px){
  .dimension-strip{ grid-template-columns:repeat(2, minmax(0,1fr)); }
  .hero{ padding:76px 0 64px; }
  .section{ padding:64px 0; }
}