@import url('https://fonts.googleapis.com/css2?family=Fraunces:ital,opsz,wght@0,9..144,300..900;1,9..144,300..900&family=Work+Sans:wght@400;500;600;700&family=IBM+Plex+Mono:wght@500;600&display=swap');

:root {
  --navy:    #013266;
  --mid:     #1a6693;
  --teal:    #3a9aad;
  --line:    #2a7a9a;
  --bg:      #ffffff;
  --surface: #f4f7fa;
  --surface2:#e8eff6;
  --text:    #013266;
  --muted:   #4a7a96;
  --border:  rgba(1,50,102,0.12);
  --font-display: 'Fraunces', serif;
  --font-body: 'Work Sans', sans-serif;
  --font-mono: 'IBM Plex Mono', monospace;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: var(--mid); text-decoration: none; }
a:hover { text-decoration: underline; }

.wrap {
  max-width: 1040px;
  margin: 0 auto;
  padding: 0 28px;
}

/* ---------- Header ---------- */

.site-header {
  border-bottom: 1px solid var(--border);
  background: var(--bg);
}

.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 18px;
  padding-bottom: 18px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 14px;
  color: var(--navy);
}
.brand:hover { text-decoration: none; }
.brand img { height: 38px; width: auto; }
.brand span {
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 17px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--navy);
}

.main-nav { display: flex; gap: 28px; }
.main-nav a {
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.02em;
  color: var(--muted);
}
.main-nav a:hover { color: var(--navy); text-decoration: none; }

/* ---------- Hero ---------- */

.hero {
  padding: 88px 0 64px;
  border-bottom: 1px solid var(--border);
  background: var(--bg);
}

.eyebrow {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--teal);
  margin: 0 0 16px;
}

.hero h1 {
  font-family: var(--font-body);
  font-weight: 700;
  font-size: clamp(30px, 4vw, 46px);
  line-height: 1.18;
  margin: 0 0 20px;
  max-width: 680px;
  color: var(--navy);
}

.hero p.lede {
  font-size: 19px;
  color: var(--muted);
  max-width: 56ch;
  margin: 0;
}

/* ---------- Pillars ---------- */

.pillars {
  padding: 64px 0 72px;
  background: var(--surface);
}

.pillars h2, .section-label {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 0 0 28px;
}

.pillar-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
}

.pillar-card {
  background: var(--bg);
  padding: 32px 28px 28px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  transition: background 0.15s ease;
}

.pillar-card:hover { background: var(--surface); text-decoration: none; }

.pillar-node {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--teal);
}

.pillar-card h3 {
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 21px;
  color: var(--navy);
  margin: 0;
}

.pillar-card p {
  font-size: 15px;
  color: var(--muted);
  margin: 0;
  flex-grow: 1;
}

.pillar-card .go {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--mid);
}

/* ---------- Article lists ---------- */

.latest { padding: 0 0 96px; background: var(--bg); }

.article-list { display: flex; flex-direction: column; }

.article-row {
  display: grid;
  grid-template-columns: 130px 1fr;
  gap: 24px;
  padding: 26px 0;
  border-top: 1px solid var(--border);
  color: var(--text);
}
.article-row:last-child { border-bottom: 1px solid var(--border); }
.article-row:hover { text-decoration: none; }
.article-row:hover h3 { color: var(--mid); }

.article-row time {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--muted);
  padding-top: 4px;
}

.article-row .tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--teal);
  margin-bottom: 8px;
}

.article-row h3 {
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 20px;
  margin: 0 0 8px;
  color: var(--navy);
  transition: color 0.15s ease;
}

.article-row p {
  font-size: 15px;
  color: var(--muted);
  margin: 0;
  max-width: 62ch;
}

/* ---------- Pillar landing page ---------- */

.pillar-hero {
  padding: 72px 0 48px;
  border-bottom: 1px solid var(--border);
}

.pillar-hero h1 {
  font-family: var(--font-body);
  font-weight: 600;
  font-size: clamp(30px, 4.5vw, 44px);
  color: var(--navy);
  margin: 0 0 16px;
}

.pillar-hero p {
  font-size: 18px;
  color: var(--muted);
  max-width: 60ch;
  margin: 0;
}

/* ---------- Post ---------- */

.post-header { padding: 72px 0 40px; border-bottom: 1px solid var(--border); }

.post-header h1 {
  font-family: var(--font-body);
  font-weight: 600;
  font-size: clamp(28px, 4.2vw, 42px);
  line-height: 1.18;
  color: var(--navy);
  margin: 0 0 18px;
}

.post-meta {
  display: flex;
  gap: 16px;
  align-items: center;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--muted);
}

.post-body {
  padding: 48px 0 96px;
  font-size: 18px;
  line-height: 1.75;
  max-width: 68ch;
}

.post-body h2 {
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 26px;
  color: var(--navy);
  margin: 44px 0 18px;
}

.post-body p { margin: 0 0 22px; color: var(--text); }
.post-body ul, .post-body ol { margin: 0 0 22px; padding-left: 22px; color: var(--text); }
.post-body li { margin-bottom: 8px; }

.post-body blockquote {
  border-left: 2px solid var(--teal);
  margin: 32px 0;
  padding: 4px 0 4px 22px;
  font-family: var(--font-body);
  font-style: italic;
  font-size: 20px;
  color: var(--navy);
}

/* ---------- Page (about) ---------- */

.page-header { padding: 72px 0 8px; }
.page-header h1 {
  font-family: var(--font-body);
  font-weight: 600;
  font-size: clamp(30px, 4.5vw, 44px);
  color: var(--navy);
  margin: 0;
}

.page-body {
  padding: 32px 0 96px;
  font-size: 18px;
  line-height: 1.75;
  max-width: 62ch;
}
.page-body p { margin: 0 0 22px; color: var(--text); }
.page-body h2 {
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 24px;
  color: var(--navy);
  margin: 40px 0 16px;
}

/* ---------- Footer ---------- */

.site-footer {
  border-top: 1px solid var(--border);
  background: var(--surface);
  padding: 40px 0;
}

.site-footer .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}

.site-footer p {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--muted);
  margin: 0;
}

.site-footer a { color: var(--muted); }
.site-footer a:hover { color: var(--navy); }

/* ---------- Responsive ---------- */

@media (max-width: 760px) {
  .pillar-grid { grid-template-columns: 1fr; }
  .article-row { grid-template-columns: 1fr; gap: 6px; }
  .hero { padding: 64px 0 48px; }

  .site-header .wrap {
    flex-direction: column;
    align-items: flex-start;
    gap: 14px;
  }
  .main-nav {
    display: flex;
    flex-wrap: wrap;
    gap: 10px 18px;
    width: 100%;
  }
  .main-nav a {
    font-size: 12px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .pillar-card, .article-row h3 { transition: none; }
}

/* ---------- About page ---------- */

.about-hero {
  display: flex;
  align-items: center;
  gap: 32px;
  padding: 40px 0 48px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 48px;
}

.about-photo {
  width: 140px;
  height: 140px;
  border-radius: 50%;
  object-fit: cover;
  object-position: center top;
  flex-shrink: 0;
  border: 3px solid var(--surface2);
}

.about-intro { display: flex; flex-direction: column; gap: 8px; }

.about-name {
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 26px;
  color: var(--navy);
  margin: 0;
}

.about-tagline {
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--muted);
  margin: 0;
  letter-spacing: 0.03em;
}

.about-linkedin {
  display: inline-block;
  margin-top: 6px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--mid);
  letter-spacing: 0.02em;
}

@media (max-width: 600px) {
  .about-hero {
    flex-direction: column;
    align-items: flex-start;
    gap: 20px;
  }
  .about-photo { width: 110px; height: 110px; }
}