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

:root {
  --black:       #050608;
  --deep:        #090c10;
  --surface:     #0d1117;
  --ink:         #111620;
  --border:      rgba(255,255,255,0.06);
  --silver:      #c8cdd4;
  --white:       #eef0f3;
  --teal:        #3d7a7a;
  --teal-light:  #5aadad;
  --accent:      #8bbfbf;

  --light-bg:    #ffffff;
  --grey-bg:     #f0f1f4;
  --dark-text:   #1a1d24;
  --body-text:   #3a3f4a;
  --muted-text:  #6b7180;
  --light-border: rgba(0,0,0,0.08);
  --card-bg:     #ffffff;
  --card-bg-alt: #f7f8fa;
  --teal-dark:   #2a6363;
}

html { scroll-behavior: smooth; }
body {
  background: var(--light-bg);
  color: var(--body-text);
  font-family: 'Syne', sans-serif;
  font-weight: 300;
  overflow-x: hidden;
}

/* ── NAV ── */
nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 30px 64px;
  background: linear-gradient(to bottom, rgba(255,255,255,0.98) 0%, transparent 100%);
}
.nav-logo {
  font-family: 'Syne', sans-serif;
  font-size: 16px;
  letter-spacing: 0.3em;
  color: var(--dark-text);
  text-decoration: none;
  text-transform: uppercase;
}
.nav-logo span { color: var(--teal-dark); }
.nav-back {
  font-family: 'Syne', sans-serif;
  font-weight: 300;
  font-size: 13px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--body-text);
  text-decoration: none;
  transition: color 0.3s;
}
.nav-back:hover { color: var(--teal-dark); }

/* ── TWO-COLUMN BLOG LAYOUT ── */
.blog-layout {
  display: grid;
  grid-template-columns: minmax(0, 780px) 280px;
  gap: 64px;
  max-width: 1180px;
  margin: 0 auto;
  padding: 140px 32px 80px;
  align-items: start;
}

.blog-main { min-width: 0; }

/* ── ARCHIVE SIDEBAR ── */
.blog-archive {
  position: sticky;
  top: 110px;
  padding: 24px 0 0 28px;
  border-left: 1px solid var(--light-border);
}
.blog-archive-title {
  font-family: 'Syne', sans-serif;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--teal-dark);
  margin-bottom: 22px;
}
.blog-archive-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 22px;
}
.blog-archive-item {
  display: block;
}
.blog-archive-link {
  display: flex;
  flex-direction: column;
  gap: 4px;
  text-decoration: none;
  color: inherit;
  transition: color 0.25s;
}
a.blog-archive-link:hover { color: var(--teal-dark); }
a.blog-archive-link:hover .blog-archive-headline { color: var(--teal-dark); }

.blog-archive-flag {
  font-family: 'Syne', sans-serif;
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--teal-dark);
}
.blog-archive-flag.muted {
  color: var(--muted-text);
  font-weight: 400;
}
.blog-archive-date {
  font-family: 'Syne', sans-serif;
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--muted-text);
  text-transform: uppercase;
}
.blog-archive-headline {
  font-family: 'Syne', sans-serif;
  font-size: 14px;
  font-weight: 400;
  line-height: 1.4;
  color: var(--dark-text);
  transition: color 0.25s;
}
.blog-archive-item.current .blog-archive-headline {
  color: var(--muted-text);
  font-weight: 300;
}

/* ── ARTICLE HEAD ── */
.blog-page-eyebrow {
  display: inline-block;
  font-family: 'Syne', sans-serif;
  font-size: clamp(28px, 3.5vw, 40px);
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: #ffffff;
  background: var(--teal-dark);
  padding: 12px 28px;
  margin-bottom: 32px;
}

.blog-page-title {
  font-family: 'Syne', sans-serif;
  font-size: clamp(28px, 4vw, 42px);
  font-weight: 700;
  color: var(--dark-text);
  line-height: 1.25;
  margin-bottom: 8px;
}

.blog-page-subtitle {
  font-family: 'Cormorant Garamond', serif;
  font-style: italic;
  font-size: clamp(18px, 2vw, 22px);
  color: var(--teal-dark);
  font-weight: 400;
  margin-bottom: 12px;
}

.blog-meta {
  display: flex;
  align-items: center;
  gap: 16px;
  font-family: 'Syne', sans-serif;
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--muted-text);
  margin-bottom: 48px;
  padding-bottom: 32px;
  border-bottom: 1px solid var(--light-border);
}
.blog-meta-separator {
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--muted-text);
  opacity: 0.5;
}

/* ── ARTICLE BODY ── */
.blog-body p {
  font-family: 'Syne', sans-serif;
  font-size: 17px;
  font-weight: 300;
  line-height: 1.85;
  color: var(--body-text);
  margin-bottom: 28px;
}

.blog-body .blog-lead {
  font-size: 19px;
  line-height: 1.8;
  color: var(--dark-text);
  margin-bottom: 36px;
}

.blog-body h2 {
  font-family: 'Syne', sans-serif;
  font-size: clamp(20px, 2.4vw, 26px);
  font-weight: 600;
  letter-spacing: 0.01em;
  color: var(--dark-text);
  line-height: 1.3;
  margin: 48px 0 20px;
}

.blog-body .blog-pullquote {
  font-family: 'Cormorant Garamond', serif;
  font-size: 24px;
  font-weight: 400;
  font-style: italic;
  line-height: 1.55;
  color: var(--teal-dark);
  border-left: 3px solid var(--teal);
  padding: 8px 0 8px 28px;
  margin: 48px 0;
}

.blog-body .blog-section-break {
  display: block;
  width: 40px;
  height: 1px;
  background: var(--light-border);
  margin: 48px 0;
}

/* ── FEATURED IMAGE ── */
.blog-featured-img {
  margin: 48px 0;
  text-align: center;
}
.blog-featured-img img {
  max-width: 100%;
  border-radius: 4px;
  border: 1px solid var(--light-border);
}
.blog-featured-img figcaption {
  font-family: 'Syne', sans-serif;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--muted-text);
  margin-top: 14px;
  font-style: italic;
  text-align: left;
  line-height: 1.6;
  padding: 0 4px;
}

/* ── TABLE ── */
.blog-table-wrap {
  margin: 40px 0 48px;
  overflow-x: auto;
}
.blog-table-caption {
  font-family: 'Syne', sans-serif;
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--dark-text);
  font-weight: 600;
  margin-bottom: 14px;
}
.blog-table {
  width: 100%;
  border-collapse: collapse;
  font-family: 'Syne', sans-serif;
  font-size: 14px;
  font-weight: 300;
  color: var(--body-text);
}
.blog-table thead th {
  background: var(--card-bg-alt);
  color: var(--dark-text);
  font-weight: 600;
  text-align: left;
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 14px 16px;
  border-bottom: 2px solid var(--teal-dark);
}
.blog-table tbody td {
  padding: 14px 16px;
  border-bottom: 1px solid var(--light-border);
  vertical-align: top;
  line-height: 1.55;
}
.blog-table tbody tr:last-child td { border-bottom: none; }

/* ── REFERENCES ── */
.blog-references {
  margin-top: 56px;
  padding-top: 32px;
  border-top: 1px solid var(--light-border);
}
.blog-references h3 {
  font-family: 'Syne', sans-serif;
  font-size: 13px;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--teal-dark);
  margin-bottom: 20px;
}
.blog-references ol {
  padding-left: 20px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.blog-references li {
  font-family: 'Syne', sans-serif;
  font-size: 14px;
  font-weight: 300;
  line-height: 1.7;
  color: var(--muted-text);
  word-break: break-word;
}
.blog-references a {
  color: var(--teal-dark);
  text-decoration: none;
  border-bottom: 1px solid rgba(42,99,99,0.25);
  transition: border-color 0.25s;
}
.blog-references a:hover { border-bottom-color: var(--teal-dark); }

/* ── BACK TO BLOG NAV ── */
.blog-post-nav {
  margin-top: 56px;
  padding-top: 32px;
  border-top: 1px solid var(--light-border);
  text-align: center;
}
.blog-post-nav a {
  font-family: 'Syne', sans-serif;
  font-size: 12px;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--teal-dark);
  text-decoration: none;
  transition: color 0.3s;
}
.blog-post-nav a:hover { color: var(--teal); }

/* ── RESPONSIVE ── */
@media (max-width: 1024px) {
  .blog-layout {
    grid-template-columns: 1fr;
    gap: 48px;
    max-width: 780px;
  }
  .blog-archive {
    position: static;
    border-left: none;
    border-top: 1px solid var(--light-border);
    padding: 32px 0 0 0;
  }
  .blog-archive-list {
    flex-direction: row;
    flex-wrap: wrap;
    gap: 24px;
  }
  .blog-archive-item {
    flex: 1 1 220px;
    min-width: 200px;
  }
}
@media (max-width: 900px) {
  nav { padding: 22px 28px; }
  .blog-layout { padding: 100px 24px 60px; }
}
@media (max-width: 480px) {
  .blog-layout { padding: 90px 16px 48px; }
  .blog-body p { font-size: 16px; }
  .blog-body .blog-lead { font-size: 17px; }
  .blog-body .blog-pullquote { font-size: 20px; padding-left: 20px; }
  .blog-meta { flex-wrap: wrap; gap: 8px; }
  .blog-table { font-size: 13px; }
  .blog-table thead th, .blog-table tbody td { padding: 10px 12px; }
}

/* ── FULL FOOTER ── */
footer {
  background: #050608;
  border-top: 1px solid rgba(255,255,255,0.06);
  padding: 64px 64px 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 48px;
  padding-bottom: 56px;
}
.footer-col-title {
  font-family: 'Syne', sans-serif;
  font-size: 13px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: #eef0f3;
  margin-bottom: 20px;
}
.footer-col-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.footer-col-links a {
  font-size: 14px;
  letter-spacing: 0.04em;
  color: #eef0f3;
  text-decoration: none;
  transition: color 0.3s;
  font-weight: 300;
}
.footer-col-links a:hover { color: #5aadad; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.06);
  padding: 28px 0;
  text-align: center;
}
.footer-copy {
  font-size: 12px;
  letter-spacing: 0.1em;
  color: rgba(200,205,212,0.55);
}
@media (max-width: 900px) {
  footer { padding: 48px 28px 0; }
  .footer-grid { grid-template-columns: repeat(2, 1fr); gap: 36px; }
}
@media (max-width: 480px) {
  footer { padding: 36px 16px 0; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
}

/* grain overlay */
body::after {
  content: '';
  position: fixed;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  opacity: 0.022;
  pointer-events: none;
  z-index: 9999;
}