@import url('https://fonts.googleapis.com/css2?family=Cormorant+Garamond:wght@300;400;500;600&family=DM+Sans:wght@300;400;500&display=swap');

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --navy-deep:    #031d38;
  --navy-mid:     #042C53;
  --navy-light:   #0C447C;
  --gold:         #EF9F27;
  --gold-dim:     rgba(239,159,39,0.15);
  --gold-border:  rgba(239,159,39,0.3);
  --text-primary: #E6F1FB;
  --text-secondary: #6B9EC7;
  --text-body:    #B5D4F4;
  --border:       rgba(255,255,255,0.08);
  --border-gold:  rgba(239,159,39,0.3);
  --font-serif:   'Cormorant Garamond', Georgia, serif;
  --font-sans:    'DM Sans', system-ui, sans-serif;
  --radius-sm:    6px;
  --radius-md:    10px;
  --radius-lg:    14px;
  --max-width:    1100px;
  --content-width: 720px;
}

body {
  font-family: var(--font-sans);
  font-size: 15px;
  font-weight: 300;
  line-height: 1.7;
  color: var(--text-primary);
  background: var(--navy-mid);
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

/* Gold bar */
.gold-bar { height: 3px; background: var(--gold); }

/* Nav */
.site-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 1.5rem 2rem;
  border-bottom: 0.5px solid var(--border);
}

.nav-logo {
  font-family: var(--font-serif);
  font-size: 20px;
  font-weight: 500;
  letter-spacing: 4px;
  color: var(--text-primary);
  line-height: 1;
}

.nav-logo span {
  display: block;
  font-family: var(--font-sans);
  font-size: 9px;
  letter-spacing: 5px;
  color: var(--gold);
  font-weight: 300;
  margin-top: 3px;
  text-transform: uppercase;
}

.nav-links {
  display: flex;
  gap: 2rem;
  list-style: none;
}

.nav-links a {
  font-size: 11px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--text-secondary);
  transition: color 0.2s;
}

.nav-links a:hover { color: var(--text-primary); }
.nav-links a.active { color: var(--gold); }

/* Footer */
.site-footer {
  border-top: 0.5px solid var(--border);
  padding: 2rem;
  text-align: center;
  font-size: 11px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--text-secondary);
  margin-top: 4rem;
  background: var(--navy-deep);
}

.site-footer a { color: var(--gold); }

/* Tags */
.tag {
  display: inline-block;
  padding: 3px 11px;
  border-radius: 20px;
  font-size: 10px;
  letter-spacing: 1px;
  font-weight: 500;
  text-transform: uppercase;
}
.tag-ai      { background: rgba(55,138,221,0.15);  color: #85B7EB;  border: 0.5px solid rgba(55,138,221,0.3); }
.tag-mmm     { background: rgba(29,158,117,0.15);  color: #5DCAA5;  border: 0.5px solid rgba(29,158,117,0.3); }
.tag-attr    { background: rgba(239,159,39,0.15);  color: #EF9F27;  border: 0.5px solid rgba(239,159,39,0.3); }
.tag-data    { background: rgba(127,119,221,0.15); color: #AFA9EC;  border: 0.5px solid rgba(127,119,221,0.3); }
.tag-leader  { background: rgba(240,153,123,0.15); color: #F0997B;  border: 0.5px solid rgba(240,153,123,0.3); }
.tag-privacy { background: rgba(180,178,169,0.15); color: #D3D1C7;  border: 0.5px solid rgba(180,178,169,0.3); }

/* Buttons */
.btn {
  display: inline-block;
  padding: 10px 24px;
  border-radius: var(--radius-sm);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  cursor: pointer;
  transition: opacity 0.2s;
  font-family: var(--font-sans);
  border: none;
}
.btn:hover { opacity: 0.85; }
.btn-primary   { background: var(--gold); color: var(--navy-deep); }
.btn-secondary { background: transparent; color: var(--text-primary); border: 0.5px solid rgba(255,255,255,0.2); }
.btn-ghost     { background: transparent; color: var(--gold); border: 0.5px solid var(--gold-border); }

/* Article cards */
.article-card {
  background: var(--navy-deep);
  border: 0.5px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  transition: border-color 0.2s;
}
.article-card:hover { border-color: rgba(255,255,255,0.2); }
.article-card.featured { background: var(--navy-light); border-color: var(--gold-border); }

.article-card .tag-row { display: flex; gap: 6px; margin-bottom: 0.75rem; flex-wrap: wrap; }
.article-card h2 {
  font-family: var(--font-serif);
  font-size: 20px;
  font-weight: 500;
  color: var(--text-primary);
  line-height: 1.3;
  margin-bottom: 0.5rem;
}
.article-card h2.sm { font-size: 16px; }
.article-card p { font-size: 13px; color: var(--text-secondary); margin-bottom: 1rem; line-height: 1.6; }
.article-card .meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 11px;
  color: var(--text-secondary);
  letter-spacing: 1px;
}
.article-card .meta a { color: var(--gold); }
.article-card .meta a:hover { text-decoration: underline; }

/* List card */
.list-card {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
  padding: 1rem 1.25rem;
  border: 0.5px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--navy-deep);
  transition: border-color 0.2s;
}
.list-card:hover { border-color: rgba(255,255,255,0.2); }
.list-card .num {
  font-family: var(--font-serif);
  font-size: 28px;
  font-weight: 400;
  color: var(--gold);
  line-height: 1;
  min-width: 28px;
}
.list-card .list-title { font-size: 13px; font-weight: 500; color: var(--text-primary); margin-bottom: 4px; line-height: 1.4; }
.list-card .list-meta  { font-size: 11px; color: var(--text-secondary); }
.list-card .list-meta a { color: var(--gold); }

/* Author strip */
.author-strip {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1.25rem;
  background: var(--navy-deep);
  border-radius: var(--radius-md);
  border: 0.5px solid var(--border);
}
.author-avatar {
  width: 44px; height: 44px;
  border-radius: 50%;
  background: var(--gold);
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-serif);
  font-size: 18px;
  font-weight: 600;
  color: var(--navy-deep);
  flex-shrink: 0;
}
.author-strip h3 { font-size: 14px; font-weight: 500; margin-bottom: 3px; color: var(--text-primary); }
.author-strip p  { font-size: 12px; color: var(--text-secondary); line-height: 1.6; }

/* Article body */
.article-body {
  max-width: var(--content-width);
  margin: 0 auto;
  padding: 2rem;
}
.article-body h1 {
  font-family: var(--font-serif);
  font-size: 36px;
  font-weight: 500;
  color: var(--text-primary);
  letter-spacing: 0.5px;
  line-height: 1.25;
  margin-bottom: 1rem;
}
.article-body .article-meta { font-size: 12px; color: var(--text-secondary); margin-bottom: 2rem; letter-spacing: 1px; }
.article-body .article-meta a { color: var(--gold); }
.article-body p       { margin-bottom: 1.25rem; color: var(--text-body); font-size: 16px; line-height: 1.9; }
.article-body h2      { font-family: var(--font-serif); font-size: 24px; font-weight: 500; color: var(--text-primary); margin: 2rem 0 0.75rem; }
.article-body h3      { font-size: 16px; font-weight: 500; color: var(--text-primary); margin: 1.5rem 0 0.5rem; }
.article-body ul, .article-body ol { padding-left: 1.5rem; margin-bottom: 1.25rem; }
.article-body li      { margin-bottom: 0.4rem; font-size: 16px; line-height: 1.9; color: var(--text-body); }
.article-body blockquote {
  border-left: 3px solid var(--gold);
  padding: 0.75rem 1.25rem;
  margin: 1.5rem 0;
  background: var(--gold-dim);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-style: italic;
  color: var(--gold);
  font-size: 15px;
}
.article-body .back-link {
  display: inline-block;
  font-size: 11px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 2rem;
}
.article-body .back-link:hover { opacity: 0.8; }

/* Contact form */
.form-group label {
  font-size: 11px;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--text-secondary);
  font-weight: 500;
  display: block;
  margin-bottom: 6px;
}
.form-group input,
.form-group textarea {
  padding: 10px 14px;
  border: 0.5px solid rgba(255,255,255,0.15);
  border-radius: 6px;
  font-size: 14px;
  font-family: var(--font-sans);
  color: var(--text-primary);
  background: var(--navy-deep);
  outline: none;
  transition: border-color 0.2s;
  width: 100%;
}
.form-group input::placeholder,
.form-group textarea::placeholder { color: var(--text-secondary); }
.form-group input:focus,
.form-group textarea:focus { border-color: var(--gold); }

/* Responsive */
@media (max-width: 700px) {
  .site-nav { padding: 1rem; }
  .nav-links { gap: 1rem; }
  .article-body { padding: 1rem; }
  .article-body h1 { font-size: 26px; }
}

/* Article page layout with sidebar */
.article-page {
  display: grid;
  grid-template-columns: 1fr 200px;
  gap: 0;
  max-width: var(--max-width);
  margin: 0 auto;
}

.article-main {
  padding: 2rem;
  border-right: 0.5px solid var(--border);
  min-width: 0;
}

.article-sidebar {
  padding: 1.5rem 1.25rem;
  background: var(--navy-deep);
  position: sticky;
  top: 0;
  height: 100vh;
  overflow-y: auto;
  scrollbar-width: none;
}
.article-sidebar::-webkit-scrollbar { display: none; }

.sidebar-label {
  font-size: 9px;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 0.5px solid var(--border);
}

.sidebar-item {
  padding: 0.75rem 0;
  border-bottom: 0.5px solid var(--border);
  cursor: pointer;
  transition: all 0.2s;
  text-decoration: none;
  display: block;
}
.sidebar-item:last-child { border-bottom: none; }
.sidebar-item:hover .sidebar-item-title { color: var(--gold); }
.sidebar-item.active {
  border-left: 2px solid var(--gold);
  padding-left: 8px;
  margin-left: -8px;
}

.sidebar-item-tag {
  font-size: 8px;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--text-secondary);
  margin-bottom: 4px;
}
.sidebar-item-title {
  font-size: 11px;
  color: var(--text-body);
  line-height: 1.4;
  margin-bottom: 3px;
  transition: color 0.2s;
}
.sidebar-item.active .sidebar-item-title { color: var(--gold); }
.sidebar-item-date { font-size: 10px; color: var(--text-secondary); }

@media (max-width: 900px) {
  .article-page { grid-template-columns: 1fr; }
  .article-sidebar { display: none; }
  .article-main { padding: 1rem; border-right: none; }
}

/* Author strip bio lines */
.author-strip .bio-line1 {
  font-size: 12px;
  color: #B5D4F4;
  line-height: 1.5;
  margin-bottom: 4px;
}
.author-strip .bio-line2 {
  font-size: 12px;
  color: #6B9EC7;
  line-height: 1.5;
}

/* Normalized article typography */
.article-main h1 {
  font-family: var(--font-serif);
  font-size: 36px;
  font-weight: 500;
  color: var(--text-primary);
  line-height: 1.25;
  margin-bottom: 1rem;
  letter-spacing: 0.5px;
}
.article-main h2 {
  font-family: var(--font-serif);
  font-size: 24px;
  font-weight: 500;
  color: var(--text-primary);
  margin: 2rem 0 0.75rem;
  letter-spacing: 0.3px;
}
.article-main h3 {
  font-size: 15px;
  font-weight: 500;
  color: var(--text-primary);
  margin: 1.5rem 0 0.5rem;
}
.article-main p {
  font-size: 15px;
  color: var(--text-body);
  line-height: 1.9;
  margin-bottom: 1.25rem;
}
.article-main ul,
.article-main ol {
  padding-left: 1.5rem;
  margin-bottom: 1.25rem;
}
.article-main li {
  font-size: 15px;
  color: var(--text-body);
  line-height: 1.9;
  margin-bottom: 0.4rem;
}
.article-main blockquote {
  border-left: 3px solid var(--gold);
  padding: 0.75rem 1.25rem;
  margin: 1.5rem 0;
  background: var(--gold-dim);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-style: italic;
  color: var(--gold);
  font-size: 15px;
  line-height: 1.7;
}
.article-main .article-meta {
  font-size: 12px;
  color: var(--text-secondary);
  margin-bottom: 2rem;
  letter-spacing: 1px;
}
.article-main .article-meta a { color: var(--gold); }
.article-main .back-link {
  display: inline-block;
  font-size: 11px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 2rem;
}
.article-main .tag-row {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

/* ── Kindle-style reading experience ── */
.article-main {
  max-width: none;
  margin: 0;
  padding: 2rem 2.5rem 2rem 2rem;
}

.article-main p {
  font-size: 16px;
  font-weight: 400;
  color: #D9E8F5;
  line-height: 1.95;
  margin-bottom: 1.4rem;
}

.article-main h1 {
  font-family: var(--font-serif);
  font-size: 34px;
  font-weight: 500;
  color: #E6F1FB;
  line-height: 1.2;
  margin-bottom: 0.5rem;
  letter-spacing: 0.5px;
}

.article-main h2 {
  font-family: var(--font-serif);
  font-size: 23px;
  font-weight: 500;
  color: #EF9F27;
  margin: 1.75rem 0 0.6rem;
  letter-spacing: 0.3px;
}

.article-main h3 {
  font-size: 15px;
  font-weight: 500;
  color: #E6F1FB;
  margin: 1.5rem 0 0.5rem;
}

.article-main ul,
.article-main ol {
  padding-left: 1.5rem;
  margin-bottom: 1.4rem;
}

.article-main li {
  font-size: 16px;
  font-weight: 400;
  color: #D9E8F5;
  line-height: 1.95;
  margin-bottom: 0.5rem;
}

.article-main blockquote {
  border-left: 3px solid #EF9F27;
  padding: 0.75rem 1.25rem;
  margin: 1.25rem 0;
  background: rgba(239,159,39,0.06);
  border-radius: 0 8px 8px 0;
  font-style: italic;
  font-size: 16px;
  color: #EF9F27;
  line-height: 1.8;
}

.article-main .article-meta {
  font-size: 11px;
  color: #6B9EC7;
  margin-bottom: 1.5rem;
  letter-spacing: 1px;
}

.article-main .back-link {
  display: inline-block;
  font-size: 10px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: #EF9F27;
  margin-bottom: 1.25rem;
}

.article-main strong {
  color: #E6F1FB;
  font-weight: 500;
}

.callout {
  background: rgba(12,68,124,0.4);
  border: 0.5px solid rgba(181,212,244,0.2);
  border-radius: 10px;
  padding: 1.25rem 1.5rem;
  margin: 1.5rem 0;
}
.callout-label {
  font-size: 9px;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: #EF9F27;
  margin-bottom: 0.5rem;
}
.callout p {
  font-size: 14px !important;
  color: #B5D4F4 !important;
  margin-bottom: 0 !important;
  line-height: 1.7 !important;
}

.section-break {
  border: none;
  border-top: 0.5px solid rgba(255,255,255,0.06);
  margin: 2rem 0;
}

@media (max-width: 700px) {
  .article-main { padding: 1.25rem 1rem; }
  .article-main h1 { font-size: 26px; }
  .article-main h2 { font-size: 20px; }
  .article-main p,
  .article-main li { font-size: 16px; }
}

/* ── Timeline sidebar ── */
.year-group { margin-bottom: 1rem; }

.year-label {
  font-size: 11px;
  font-weight: 500;
  color: var(--gold);
  letter-spacing: 2px;
  margin-bottom: 0.5rem;
  display: flex;
  align-items: center;
  gap: 6px;
}
.year-label::after {
  content: '';
  flex: 1;
  height: 0.5px;
  background: rgba(239,159,39,0.3);
}

.month-group {
  padding-left: 0.75rem;
  border-left: 0.5px solid rgba(255,255,255,0.08);
  margin-bottom: 0.5rem;
}

.month-label {
  font-size: 9px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--text-secondary);
  margin-bottom: 0.4rem;
  margin-top: 0.5rem;
}

.titem {
  display: block;
  padding: 0.4rem 0;
  border-bottom: 0.5px solid rgba(255,255,255,0.04);
  text-decoration: none;
  transition: all 0.2s;
}
.titem:last-child { border-bottom: none; }

.dot {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: rgba(239,159,39,0.35);
  display: inline-block;
  margin-right: 5px;
  vertical-align: middle;
  flex-shrink: 0;
  transition: background 0.2s;
}

.titem.active {
  margin-left: -0.75rem;
  padding-left: 0.6rem;
  border-left: 2px solid var(--gold);
}
.titem.active .dot { background: var(--gold); }
.titem.active .ttitle { color: var(--gold); }
.titem:hover .ttitle { color: var(--text-primary); }

.ttag {
  font-size: 8px;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--text-secondary);
  margin-bottom: 2px;
  display: block;
  padding-left: 10px;
}

.ttitle {
  font-size: 10px;
  color: var(--text-body);
  line-height: 1.35;
  padding-left: 10px;
  display: block;
  transition: color 0.2s;
}

/* ── Footer disclaimer ── */
.footer-disclaimer {
  max-width: var(--max-width, 1100px);
  margin: 0 auto;
  padding: 1rem 2rem 0;
  border-top: 0.5px solid rgba(255,255,255,0.06);
  font-size: 10px;
  color: var(--text-secondary, #6B9EC7);
  line-height: 1.7;
  text-align: center;
  opacity: 0.75;
}