/* Jacob Burton portfolio — clean, professional, dependency-free */
:root {
  --navy: #1b3a5c;
  --navy-dark: #12283f;
  --accent: #2f6fed;
  --ink: #1e293b;
  --muted: #64748b;
  --line: #e2e8f0;
  --bg: #ffffff;
  --bg-alt: #f6f8fb;
  --card: #ffffff;
  --radius: 12px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.65;
  font-size: 17px;
}

.wrap { max-width: 860px; margin: 0 auto; padding: 0 24px; }

/* Header */
.site-header {
  position: sticky; top: 0; z-index: 10;
  background: rgba(255,255,255,.94);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(6px);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 62px; }
.brand { font-weight: 800; font-size: 1.15rem; color: var(--navy); text-decoration: none; letter-spacing: -.01em; }
.nav { display: flex; gap: 20px; align-items: center; }
.nav a { color: var(--muted); text-decoration: none; font-size: .95rem; font-weight: 500; }
.nav a:hover { color: var(--navy); }
.nav-cta {
  border: 1px solid var(--line); border-radius: 999px; padding: 6px 16px;
  color: var(--navy) !important;
}
.nav-cta:hover { border-color: var(--navy); }

/* Hero */
.hero { padding: 72px 0 56px; text-align: center; background: linear-gradient(180deg, #eef3fa 0%, #fff 100%); }
.hero-photo {
  width: 150px; height: 150px; object-fit: cover; border-radius: 50%;
  border: 4px solid #fff; box-shadow: 0 8px 24px rgba(27,58,92,.18);
}
.eyebrow { text-transform: uppercase; letter-spacing: .14em; font-size: .78rem; color: var(--muted); margin: 18px 0 6px; }
.hero h1 { font-size: 3rem; margin: 0 0 8px; color: var(--navy-dark); letter-spacing: -.02em; }
.role { font-size: 1.25rem; color: var(--ink); margin: 0 0 12px; }
.role strong { color: var(--accent); }
.lede { max-width: 620px; margin: 0 auto 28px; color: var(--muted); font-size: 1.08rem; }
.hero-actions { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }

.btn {
  display: inline-block; padding: 12px 26px; border-radius: 999px;
  font-weight: 600; text-decoration: none; font-size: 1rem;
  transition: transform .12s ease, box-shadow .12s ease;
}
.btn:hover { transform: translateY(-1px); }
.btn-primary { background: var(--accent); color: #fff; box-shadow: 0 6px 18px rgba(47,111,237,.3); }
.btn-ghost { border: 1.5px solid var(--line); color: var(--navy); background: #fff; }
.btn-ghost:hover { border-color: var(--navy); }

/* Sections */
.section { padding: 64px 0; }
.section-alt { background: var(--bg-alt); }
.section h2 { font-size: 1.9rem; color: var(--navy-dark); margin: 0 0 24px; letter-spacing: -.01em; }
.subhead { margin-top: 48px !important; }
.prose p, .prose-narrow { color: #334155; }
.prose p { margin: 0 0 16px; }
.prose-narrow { max-width: 620px; }

/* Timeline */
.timeline { display: flex; flex-direction: column; gap: 28px; }
.t-item { display: grid; grid-template-columns: 150px 1fr; gap: 20px; }
.t-date { font-weight: 700; color: var(--muted); font-size: .92rem; padding-top: 4px; white-space: nowrap; }
.t-body h3 { margin: 0 0 2px; font-size: 1.15rem; color: var(--navy-dark); }
.t-sub { color: var(--muted); font-size: .92rem; margin: 0 0 10px; }
.t-body ul { margin: 0; padding-left: 20px; color: #334155; }
.t-body li { margin-bottom: 6px; }

/* Certs */
.cert-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 12px; }
.cert {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 14px 16px; display: flex; flex-direction: column;
}
.cert-name { font-weight: 800; color: var(--navy); font-size: 1.05rem; }
.cert-org { color: var(--muted); font-size: .88rem; }
.pill {
  display: inline-block; font-size: .68rem; font-weight: 700; letter-spacing: .04em;
  text-transform: uppercase; border-radius: 999px; padding: 2px 10px; margin-left: 8px;
  vertical-align: 2px;
}
.pill-progress { background: #e0ebff; color: #2456c4; }
.pill-expired { background: #f1f5f9; color: var(--muted); }

/* Cards */
.cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 16px; }
.card {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 22px;
}
.card h3 { margin: 0 0 4px; color: var(--navy-dark); font-size: 1.12rem; }
.card-tag { font-size: .85rem; color: var(--muted); margin: 0 0 10px; }
.card p:last-child { margin-bottom: 0; color: #334155; font-size: .97rem; }
.card a { color: var(--accent); }

/* Blog list */
.post-list { display: flex; flex-direction: column; gap: 4px; margin-bottom: 28px; }
.post-row {
  display: grid; grid-template-columns: 110px 1fr; gap: 6px 16px;
  padding: 18px 6px; text-decoration: none; color: inherit;
  border-bottom: 1px solid var(--line);
}
.post-row:first-child { border-top: 1px solid var(--line); }
.post-row:hover .post-title { color: var(--accent); }
.post-date { color: var(--muted); font-size: .88rem; padding-top: 3px; white-space: nowrap; }
.post-title { font-weight: 700; font-size: 1.12rem; color: var(--navy-dark); }
.post-blurb { grid-column: 2; color: var(--muted); font-size: .95rem; margin: 0; }

/* Article */
.article { padding: 56px 0 72px; }
.article h1 { font-size: 2.3rem; color: var(--navy-dark); letter-spacing: -.02em; margin: 0 0 8px; line-height: 1.2; }
.article .byline { color: var(--muted); margin: 0 0 32px; font-size: .95rem; }
.article .prose { max-width: 700px; }
.article .prose h2 { font-size: 1.4rem; margin: 32px 0 12px; }
.back-link { display: inline-block; margin-bottom: 28px; color: var(--accent); text-decoration: none; font-weight: 600; }

/* Contact */
.contact-list { list-style: none; padding: 0; margin: 20px 0 0; display: flex; flex-direction: column; gap: 10px; }
.contact-list a { color: var(--accent); font-weight: 600; text-decoration: none; font-size: 1.1rem; }
.contact-list a:hover { text-decoration: underline; }
.contact-soon { color: var(--muted); font-size: 1.1rem; }
.contact-soon em { font-size: .85rem; }

/* Footer */
.site-footer { border-top: 1px solid var(--line); padding: 32px 0; text-align: center; color: var(--muted); }
.site-footer p { margin: 4px 0; }
.fineprint { font-size: .85rem; }

/* Links */
a { color: var(--accent); }

/* Responsive */
@media (max-width: 640px) {
  .hero h1 { font-size: 2.2rem; }
  .t-item { grid-template-columns: 1fr; gap: 6px; }
  .post-row { grid-template-columns: 1fr; }
  .post-blurb { grid-column: 1; }
  .nav { gap: 12px; }
  .nav a { font-size: .88rem; }
  .section { padding: 48px 0; }
}