:root{
  --navy: #0B2445;
  --navy-soft: #163257;
  --teal: #12767C;
  --teal-soft: #E4F0EF;
  --amber: #D98E04;
  --amber-soft: #FBEBCE;
  --sand: #F7F3EC;
  --sand-deep: #EFE8DA;
  --sage: #6E9169;
  --ink: #21262B;
  --paper: #FFFDF9;
  --line: rgba(11,36,69,0.12);
  --radius: 18px;
  --serif: "Fraunces", serif;
  --sans: "Work Sans", sans-serif;
  --mono: "JetBrains Mono", monospace;
}
*{ box-sizing: border-box; }
html{ scroll-behavior: smooth; }
body{
  margin:0;
  font-family: var(--sans);
  color: var(--ink);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
}
img,svg{ display:block; max-width:100%; }
a{ color: inherit; }
.container{ max-width: 1120px; margin: 0 auto; padding: 0 24px; }
.eyebrow{
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--teal);
  font-weight: 500;
}
h1,h2,h3{ font-family: var(--serif); color: var(--navy); margin: 0; }
h1{ font-weight: 600; }
h2{ font-weight: 600; }
p{ line-height: 1.7; }
.btn{
  display:inline-flex; align-items:center; gap:8px;
  padding: 14px 26px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 15px;
  text-decoration:none;
  border: 1px solid transparent;
  cursor:pointer;
  transition: transform .15s ease, box-shadow .15s ease, background .15s ease;
}
.btn:focus-visible{ outline: 3px solid var(--amber); outline-offset: 2px; }
.btn-primary{ background: var(--amber); color: var(--navy); }
.btn-primary:hover{ transform: translateY(-1px); box-shadow: 0 8px 20px rgba(217,142,4,0.35); }
.btn-ghost{ background: transparent; color: var(--paper); border-color: rgba(255,255,255,0.35); }
.btn-ghost:hover{ background: rgba(255,255,255,0.08); }
.btn-outline-navy{ background: transparent; color: var(--navy); border-color: var(--line); }
.btn-outline-navy:hover{ background: var(--sand-deep); }

header{
  position: sticky; top:0; z-index: 50;
  background: rgba(255,253,249,0.88);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}
.nav{ display:flex; align-items:center; justify-content:space-between; padding: 16px 24px; }
.brand{ display:flex; align-items:center; gap:10px; font-family: var(--serif); font-weight:700; font-size: 20px; color: var(--navy); text-decoration:none; }
.brand-mark{ width:32px; height:32px; object-fit:contain; }
.nav-links{ display:flex; gap:28px; align-items:center; list-style:none; margin:0; padding:0; font-size: 14.5px; font-weight:500; }
.nav-links a{ text-decoration:none; color: var(--navy-soft); }
.nav-links a:hover{ color: var(--teal); }
.nav-links a.active{ color: var(--teal); }
.nav-cta .btn-primary{ padding: 10px 20px; font-size: 14px; }

section{ padding: 72px 0; }
.section-head{ max-width: 640px; margin-bottom: 44px; }
.section-head h1, .section-head h2{ font-size: 32px; margin-top: 12px; line-height:1.2; }
.section-head p{ font-size: 16.5px; color:#4B5563; margin-top: 14px; }
.center{ text-align:center; margin-left:auto; margin-right:auto; }

/* Blog hero */
.blog-hero{
  background: linear-gradient(180deg, var(--navy) 0%, var(--navy-soft) 100%);
  color: var(--paper);
  padding: 64px 0 56px;
}
.blog-hero .eyebrow{ color:#8FD7CE; }
.blog-hero h1{ color: var(--paper); font-size: 42px; margin: 16px 0 14px; line-height:1.15; }
.blog-hero p{ color:#D9E3EE; font-size:17px; max-width:560px; }

/* Post grid */
.post-grid{ display:grid; grid-template-columns: repeat(3,1fr); gap: 26px; }
.post-card{
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 26px 24px;
  display:flex; flex-direction:column;
  text-decoration:none;
  transition: transform .15s ease, box-shadow .15s ease;
}
.post-card:hover{ transform: translateY(-3px); box-shadow: 0 16px 30px rgba(11,36,69,0.1); }
.post-card .tag{
  display:inline-block; font-family: var(--mono); font-size: 11px; letter-spacing:.06em;
  color: var(--teal); background: var(--teal-soft); padding: 4px 9px; border-radius:999px; margin-bottom: 14px;
  width: fit-content;
}
.post-card h2, .post-card h3{ font-size: 19px; margin-bottom: 10px; line-height:1.3; }
.post-card p{ font-size: 14.5px; color:#586174; margin:0 0 14px; flex:1; }
.post-card .meta{ font-family: var(--mono); font-size: 12px; color:#8a94a6; }

/* Article */
.article-hero{
  background: linear-gradient(180deg, var(--navy) 0%, var(--navy-soft) 100%);
  color: var(--paper);
  padding: 48px 0 44px;
}
.article-hero .container{ max-width: 760px; }
.breadcrumb{ font-size:13px; color:#A9BAD0; margin-bottom:18px; }
.breadcrumb a{ text-decoration:none; color:#A9BAD0; }
.breadcrumb a:hover{ color:#fff; }
.article-hero h1{ color: var(--paper); font-size: 36px; line-height:1.2; margin: 0 0 16px; }
.article-meta{ font-family: var(--mono); font-size: 13px; color:#A9BAD0; }

.article-body{ background: var(--paper); }
.article-body .container{ max-width: 720px; }
.article-body h2{ font-size: 25px; margin: 40px 0 14px; }
.article-body h3{ font-size: 19px; margin: 28px 0 10px; color: var(--navy-soft); }
.article-body p{ font-size: 16.5px; color:#333b45; margin: 0 0 18px; }
.article-body ul, .article-body ol{ font-size:16.5px; color:#333b45; line-height:1.7; padding-left: 22px; margin: 0 0 18px;}
.article-body li{ margin-bottom: 8px; }
.article-body strong{ color: var(--navy); }
.article-body blockquote{
  border-left: 3px solid var(--amber);
  background: var(--sand);
  padding: 16px 22px;
  border-radius: 0 12px 12px 0;
  margin: 26px 0;
  font-size: 16px;
  color: var(--navy-soft);
}
.callout{
  background: var(--teal-soft);
  border: 1px solid rgba(18,118,124,0.18);
  border-radius: var(--radius);
  padding: 26px 28px;
  margin: 36px 0;
}
.callout h3{ margin-top:0; color: var(--navy); font-size: 19px; }
.callout p{ font-size: 15px; color:#3d4a52; }
.callout .btn{ margin-top: 6px; }

.tags-row{ display:flex; gap:10px; flex-wrap:wrap; margin: 28px 0 0; }
.tags-row span{
  font-family: var(--mono); font-size: 11.5px; color: var(--sage);
  background: rgba(110,145,105,0.12); padding: 5px 12px; border-radius:999px;
}

.related{ background: var(--sand); }

footer{ background: var(--navy); color: #A9BAD0; padding: 48px 0 28px; font-size: 13.5px; }
.footer-grid{ display:flex; justify-content:space-between; flex-wrap:wrap; gap: 24px; margin-bottom: 24px; }
.footer-brand{ font-family: var(--serif); color:#fff; font-size:18px; font-weight:700; margin-bottom:8px; }
footer a{ text-decoration:none; color:#A9BAD0; }
footer a:hover{ color:#fff; }
.footer-cols{ display:flex; gap: 56px; flex-wrap:wrap; }
.footer-cols div{ display:flex; flex-direction:column; gap:8px; }
.footer-cols strong{ color:#fff; font-size:12.5px; letter-spacing:.06em; text-transform:uppercase; font-family: var(--mono); font-weight:500; }
.footer-bottom{ border-top: 1px solid rgba(255,255,255,0.12); padding-top:20px; display:flex; justify-content:space-between; flex-wrap:wrap; gap:10px; }

@media (max-width: 900px){
  .post-grid{ grid-template-columns: 1fr 1fr; }
}
@media (max-width: 640px){
  .nav-links{ display:none; }
  .blog-hero h1{ font-size: 30px; }
  .article-hero h1{ font-size: 27px; }
  .post-grid{ grid-template-columns: 1fr; }
  section{ padding: 48px 0; }
}