/* John F. Currie — professional consulting site */
/* Editorial scholarly aesthetic: deep navy + warm cream, serif display, refined sans body */

@import url('https://fonts.googleapis.com/css2?family=Cormorant+Garamond:ital,wght@0,300;0,400;0,500;0,600;0,700;1,400&family=Inter:wght@300;400;500;600&family=JetBrains+Mono:wght@400;500&display=swap');

:root {
  --ink: #1a2238;
  --ink-soft: #2b3553;
  --ink-mute: #5a6480;
  --paper: #f7f2e8;
  --paper-warm: #efe8d6;
  --rule: #c9bfa6;
  --rule-soft: #ddd3bb;
  --accent: #8b3a2f;       /* oxblood */
  --accent-hover: #6e2c23;
  --gold: #b08530;
  --display: 'Cormorant Garamond', 'Garamond', 'Times New Roman', serif;
  --body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --mono: 'JetBrains Mono', 'Courier New', monospace;
  --maxw: 1180px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--body);
  font-weight: 400;
  font-size: 16px;
  line-height: 1.65;
  color: var(--ink);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

/* ============ HEADER / NAV ============ */
header.site-header {
  background: var(--ink);
  color: var(--paper);
  border-bottom: 4px double var(--gold);
}
.nav-wrap {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 1.2rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}
.brand {
  display: flex;
  flex-direction: column;
  text-decoration: none;
  color: inherit;
}
.brand-name {
  font-family: var(--display);
  font-size: 1.75rem;
  font-weight: 500;
  letter-spacing: 0.5px;
  line-height: 1.1;
}
.brand-subtitle {
  font-size: 0.72rem;
  letter-spacing: 2.5px;
  text-transform: uppercase;
  color: var(--gold);
  margin-top: 4px;
}
nav.site-nav {
  display: flex;
  gap: 1.6rem;
  flex-wrap: wrap;
}
nav.site-nav a {
  color: var(--paper);
  text-decoration: none;
  font-size: 0.82rem;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  padding-bottom: 4px;
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s, color 0.2s;
}
nav.site-nav a:hover,
nav.site-nav a.active {
  border-bottom-color: var(--gold);
  color: var(--gold);
}

/* ============ HERO ============ */
.hero {
  background: var(--ink);
  color: var(--paper);
  padding: 4.5rem 2rem 5.5rem;
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: "";
  position: absolute;
  top: 0; right: 0; bottom: 0;
  width: 35%;
  background: radial-gradient(circle at 70% 50%, rgba(176, 133, 48, 0.08) 0%, transparent 60%);
  pointer-events: none;
}
.hero-inner {
  max-width: var(--maxw);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
  position: relative;
  z-index: 1;
}
.hero-eyebrow {
  font-size: 0.75rem;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 1.2rem;
}
.hero h1 {
  font-family: var(--display);
  font-weight: 400;
  font-size: clamp(2.6rem, 5vw, 4.2rem);
  line-height: 1.05;
  margin: 0 0 1.5rem;
  letter-spacing: -0.5px;
}
.hero h1 em {
  font-style: italic;
  color: var(--gold);
}
.hero p.lede {
  font-family: var(--display);
  font-size: 1.35rem;
  line-height: 1.5;
  font-weight: 300;
  margin: 0 0 2rem;
  color: #ddd3bb;
  max-width: 38ch;
}
.hero-cta {
  display: inline-block;
  padding: 0.85rem 1.8rem;
  background: var(--accent);
  color: var(--paper);
  text-decoration: none;
  font-size: 0.78rem;
  letter-spacing: 2px;
  text-transform: uppercase;
  border: 1px solid var(--accent);
  transition: background 0.2s, transform 0.15s;
  margin-right: 0.5rem;
}
.hero-cta:hover { background: var(--accent-hover); transform: translateY(-1px); }
.hero-cta.ghost {
  background: transparent;
  border-color: var(--gold);
  color: var(--gold);
}
.hero-cta.ghost:hover { background: var(--gold); color: var(--ink); }

/* Right-hand stats panel */
.credentials {
  background: rgba(247, 242, 232, 0.04);
  border: 1px solid rgba(176, 133, 48, 0.3);
  padding: 2rem;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.8rem 1.5rem;
}
.cred-item .num {
  font-family: var(--display);
  font-size: 2.6rem;
  font-weight: 500;
  color: var(--gold);
  line-height: 1;
}
.cred-item .label {
  font-size: 0.7rem;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: #ddd3bb;
  margin-top: 6px;
}

/* ============ MAIN SECTIONS ============ */
main {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 4rem 2rem;
}
section { margin-bottom: 5rem; }
section:last-child { margin-bottom: 0; }

.section-eyebrow {
  font-size: 0.72rem;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.6rem;
  display: flex;
  align-items: center;
  gap: 0.8rem;
}
.section-eyebrow::before {
  content: "";
  width: 32px;
  height: 1px;
  background: var(--accent);
}
h2.section-title {
  font-family: var(--display);
  font-weight: 400;
  font-size: 2.6rem;
  line-height: 1.1;
  margin: 0 0 1.5rem;
  letter-spacing: -0.3px;
  color: var(--ink);
  max-width: 30ch;
}
h2.section-title em { font-style: italic; color: var(--accent); }

.intro-prose {
  font-size: 1.1rem;
  line-height: 1.75;
  max-width: 68ch;
  color: var(--ink-soft);
}
.intro-prose p { margin: 0 0 1.2rem; }

/* Expertise grid */
.expertise-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2.2rem;
  margin-top: 3rem;
}
.expertise-card {
  background: var(--paper-warm);
  border: 1px solid var(--rule-soft);
  padding: 2rem 1.8rem;
  border-top: 3px solid var(--accent);
  transition: transform 0.2s, box-shadow 0.2s;
}
.expertise-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(26, 34, 56, 0.08);
}
.expertise-card .num-stamp {
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 1.5px;
  color: var(--ink-mute);
  margin-bottom: 1rem;
}
.expertise-card h3 {
  font-family: var(--display);
  font-size: 1.55rem;
  font-weight: 500;
  margin: 0 0 0.8rem;
  line-height: 1.2;
  color: var(--ink);
}
.expertise-card p {
  font-size: 0.95rem;
  line-height: 1.65;
  margin: 0;
  color: var(--ink-soft);
}

/* Pull quote */
.pullquote {
  border-left: 4px solid var(--gold);
  padding: 1.2rem 0 1.2rem 2rem;
  margin: 3rem 0;
  font-family: var(--display);
  font-size: 1.6rem;
  font-style: italic;
  line-height: 1.4;
  font-weight: 400;
  color: var(--ink);
  max-width: 60ch;
}

/* Two-column block */
.split {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 3.5rem;
  margin-top: 2rem;
}
.split aside {
  font-family: var(--display);
  font-size: 1.4rem;
  line-height: 1.3;
  font-weight: 400;
  font-style: italic;
  color: var(--accent);
  border-top: 1px solid var(--rule);
  padding-top: 1.5rem;
}

/* ============ FOOTER ============ */
footer.site-footer {
  background: var(--ink);
  color: var(--paper);
  padding: 3rem 2rem 2rem;
  margin-top: 5rem;
}
.footer-inner {
  max-width: var(--maxw);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 3rem;
  padding-bottom: 2rem;
  border-bottom: 1px solid rgba(247, 242, 232, 0.15);
}
.footer-inner h4 {
  font-family: var(--display);
  font-size: 1.3rem;
  font-weight: 500;
  margin: 0 0 1rem;
  color: var(--gold);
}
.footer-inner p, .footer-inner a {
  font-size: 0.9rem;
  color: #ddd3bb;
  text-decoration: none;
  line-height: 1.7;
}
.footer-inner ul { list-style: none; padding: 0; margin: 0; }
.footer-inner li { margin-bottom: 0.4rem; }
.footer-inner a:hover { color: var(--gold); }
.footer-bottom {
  max-width: var(--maxw);
  margin: 1.5rem auto 0;
  font-size: 0.78rem;
  color: var(--ink-mute);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}

/* ============ PUBLICATION / PATENT PAGES ============ */
.page-header {
  background: var(--ink);
  color: var(--paper);
  padding: 3.5rem 2rem 3rem;
}
.page-header-inner {
  max-width: var(--maxw);
  margin: 0 auto;
}
.page-header h1 {
  font-family: var(--display);
  font-weight: 400;
  font-size: 3.4rem;
  margin: 0.5rem 0 1rem;
  line-height: 1.05;
  letter-spacing: -0.3px;
}
.page-header h1 em { font-style: italic; color: var(--gold); }
.page-header p {
  font-family: var(--display);
  font-size: 1.2rem;
  font-weight: 300;
  color: #ddd3bb;
  max-width: 70ch;
  margin: 0;
}

/* Filter bar */
.filter-bar {
  position: sticky;
  top: 0;
  z-index: 10;
  background: var(--paper);
  border-bottom: 1px solid var(--rule-soft);
  padding: 1.2rem 2rem;
  margin: 0 -2rem 2.5rem;
}
.filter-inner {
  max-width: calc(var(--maxw) - 4rem);
  margin: 0 auto;
  display: flex;
  gap: 1.5rem;
  align-items: center;
  flex-wrap: wrap;
}
.filter-label {
  font-size: 0.72rem;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--ink-mute);
  font-weight: 500;
}
.topic-filters {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}
.topic-pill {
  background: transparent;
  border: 1px solid var(--rule);
  color: var(--ink-soft);
  padding: 0.4rem 0.9rem;
  font-size: 0.78rem;
  letter-spacing: 0.5px;
  cursor: pointer;
  font-family: var(--body);
  transition: all 0.15s;
}
.topic-pill:hover { border-color: var(--accent); color: var(--accent); }
.topic-pill.active {
  background: var(--ink);
  border-color: var(--ink);
  color: var(--paper);
}
.topic-pill .count {
  font-family: var(--mono);
  font-size: 0.7rem;
  margin-left: 0.4rem;
  opacity: 0.7;
}
.search-input {
  flex: 1;
  min-width: 200px;
  padding: 0.5rem 0.9rem;
  border: 1px solid var(--rule);
  background: white;
  font-family: var(--body);
  font-size: 0.9rem;
  color: var(--ink);
}
.search-input:focus { outline: none; border-color: var(--accent); }

/* Year section */
.year-block {
  margin-bottom: 3rem;
}
.year-heading {
  font-family: var(--display);
  font-size: 2.2rem;
  font-weight: 400;
  color: var(--accent);
  margin: 0 0 0.5rem;
  letter-spacing: 1px;
  display: flex;
  align-items: baseline;
  gap: 1rem;
}
.year-heading::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--rule);
}
.year-count {
  font-family: var(--body);
  font-size: 0.78rem;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--ink-mute);
  font-weight: 500;
}

/* Citation entry */
.citation {
  padding: 1.1rem 0 1.1rem 2.5rem;
  position: relative;
  border-bottom: 1px solid var(--rule-soft);
  font-size: 0.95rem;
  line-height: 1.65;
}
.citation:last-child { border-bottom: none; }
.citation .num {
  position: absolute;
  left: 0;
  top: 1.25rem;
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--ink-mute);
  letter-spacing: 0.5px;
}
.citation .topic-tag {
  display: inline-block;
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--accent);
  margin-left: 0.5rem;
  padding: 1px 6px;
  border: 1px solid var(--rule);
  vertical-align: middle;
}
.citation .ref-link {
  margin-left: 0.4rem;
  font-size: 0.82rem;
  color: var(--accent);
  text-decoration: none;
  white-space: nowrap;
}
.citation .ref-link:hover { text-decoration: underline; }
.citation em { font-style: italic; }

.citation.hidden { display: none; }

/* AMA hanging indent on detail entries */
.citation { text-indent: 0; }

/* ============ PATENT PAGE ============ */
.patent-section h3.patent-status {
  font-family: var(--display);
  font-size: 1.8rem;
  font-weight: 500;
  color: var(--ink);
  margin: 2.5rem 0 1.5rem;
  padding-bottom: 0.6rem;
  border-bottom: 2px solid var(--gold);
}
.patent-card {
  background: var(--paper-warm);
  border: 1px solid var(--rule-soft);
  border-left: 4px solid var(--accent);
  padding: 1.8rem 2rem;
  margin-bottom: 1.5rem;
}
.patent-num {
  font-family: var(--mono);
  font-size: 0.85rem;
  color: var(--ink-mute);
  letter-spacing: 0.5px;
  margin-bottom: 0.4rem;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.5rem;
}
.patent-num a {
  color: var(--accent);
  text-decoration: none;
  font-weight: 500;
}
.patent-num a:hover { text-decoration: underline; }
.patent-card h4 {
  font-family: var(--display);
  font-size: 1.4rem;
  font-weight: 500;
  margin: 0 0 0.8rem;
  line-height: 1.25;
  color: var(--ink);
}
.patent-meta {
  font-size: 0.85rem;
  color: var(--ink-mute);
  margin-bottom: 0.9rem;
  display: flex;
  gap: 1.5rem;
  flex-wrap: wrap;
}
.patent-meta span strong {
  font-weight: 500;
  color: var(--ink-soft);
  letter-spacing: 0.5px;
  font-size: 0.75rem;
  text-transform: uppercase;
}
.patent-card p.descr {
  font-size: 0.95rem;
  line-height: 1.65;
  margin: 0;
  color: var(--ink-soft);
}

/* ============ ABOUT PAGE ============ */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 2.2fr;
  gap: 4rem;
  align-items: start;
}
.bio-sidebar {
  position: sticky;
  top: 2rem;
}
.bio-sidebar h3 {
  font-family: var(--display);
  font-size: 1.4rem;
  font-weight: 500;
  color: var(--accent);
  margin: 0 0 0.8rem;
  letter-spacing: 0.3px;
}
.bio-sidebar .credential {
  font-size: 0.9rem;
  line-height: 1.55;
  color: var(--ink-soft);
  padding: 0.7rem 0;
  border-bottom: 1px solid var(--rule-soft);
}
.bio-sidebar .credential:last-child { border-bottom: none; }
.bio-sidebar .credential strong {
  display: block;
  font-weight: 500;
  color: var(--ink);
  margin-bottom: 2px;
}

.about-body h3 {
  font-family: var(--display);
  font-size: 1.9rem;
  font-weight: 500;
  margin: 2.5rem 0 1rem;
  color: var(--ink);
}
.about-body h3:first-child { margin-top: 0; }
.about-body p {
  font-size: 1.05rem;
  line-height: 1.75;
  color: var(--ink-soft);
  margin: 0 0 1.2rem;
}
.timeline {
  list-style: none;
  padding: 0;
  margin: 1.5rem 0;
  border-left: 2px solid var(--rule);
}
.timeline li {
  padding: 0.7rem 0 0.7rem 1.5rem;
  font-size: 0.95rem;
  position: relative;
  color: var(--ink-soft);
}
.timeline li::before {
  content: "";
  position: absolute;
  left: -6px;
  top: 1.1rem;
  width: 10px;
  height: 10px;
  background: var(--accent);
  border: 2px solid var(--paper);
  border-radius: 50%;
}
.timeline .year {
  font-family: var(--mono);
  font-size: 0.85rem;
  color: var(--accent);
  font-weight: 500;
  display: inline-block;
  min-width: 100px;
}

/* ============ CONTACT PAGE ============ */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  margin-top: 2rem;
}
.contact-card {
  background: var(--paper-warm);
  border: 1px solid var(--rule-soft);
  padding: 2.5rem;
}
.contact-card h3 {
  font-family: var(--display);
  font-size: 1.8rem;
  font-weight: 500;
  margin: 0 0 1.5rem;
  color: var(--ink);
}
.contact-row {
  display: flex;
  align-items: baseline;
  gap: 1.5rem;
  padding: 0.8rem 0;
  border-bottom: 1px solid var(--rule-soft);
}
.contact-row:last-child { border-bottom: none; }
.contact-row .label {
  font-size: 0.72rem;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--ink-mute);
  font-weight: 500;
  min-width: 100px;
}
.contact-row .value, .contact-row a {
  color: var(--ink);
  text-decoration: none;
  font-size: 1rem;
}
.contact-row a:hover { color: var(--accent); }

/* ============ RESPONSIVE ============ */
@media (max-width: 880px) {
  .hero-inner { grid-template-columns: 1fr; gap: 2.5rem; }
  .expertise-grid { grid-template-columns: 1fr; }
  .split { grid-template-columns: 1fr; gap: 1.5rem; }
  .about-grid { grid-template-columns: 1fr; gap: 2rem; }
  .bio-sidebar { position: static; }
  .contact-grid { grid-template-columns: 1fr; gap: 2rem; }
  .footer-inner { grid-template-columns: 1fr; gap: 2rem; }
  .nav-wrap { padding: 1rem 1.2rem; }
  nav.site-nav { gap: 1rem; }
  nav.site-nav a { font-size: 0.75rem; letter-spacing: 1px; }
  main, .filter-bar { padding-left: 1.2rem; padding-right: 1.2rem; }
  .filter-bar { margin-left: -1.2rem; margin-right: -1.2rem; }
  h2.section-title { font-size: 2rem; }
  .page-header h1 { font-size: 2.2rem; }
}