:root {
  color-scheme: dark;
  --ink: #080b09;
  --surface: #111713;
  --surface-raised: #161d19;
  --paper: #f4f2e9;
  --paper-soft: #d6d8d0;
  --muted: #909990;
  --line: rgba(225, 235, 226, .14);
  --line-strong: rgba(225, 235, 226, .26);
  --signal: #c5f467;
  --display: Iowan Old Style, Baskerville, "Times New Roman", serif;
  --sans: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body,
body.light-mode {
  margin: 0;
  min-height: 100vh;
  color: var(--paper);
  background: radial-gradient(circle at 84% -12%, rgba(197, 244, 103, .10), transparent 30rem), var(--ink);
  font-family: var(--sans);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
body::before,
body.light-mode::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  opacity: .17;
  background-image: linear-gradient(rgba(255,255,255,.03) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.025) 1px, transparent 1px);
  background-size: 68px 68px;
  mask-image: linear-gradient(to bottom, #000, transparent 78%);
}
body *,
body.light-mode * { font-family: var(--sans); }

a,
body.light-mode a { color: var(--signal); text-underline-offset: 3px; }
.container,
body.light-mode .container { width: min(calc(100% - 48px), 1120px); max-width: none; margin: 0 auto; padding: 0 0 72px; }

.top-nav {
  min-height: 82px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  margin: 0 0 64px;
  border-bottom: 1px solid var(--line);
}
.brand,
body.light-mode .brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  color: var(--paper);
  font-size: .95rem;
  font-weight: 790;
  letter-spacing: .18em;
  text-decoration: none;
}
.brand::before {
  content: "HX";
  width: 34px;
  aspect-ratio: 1;
  display: grid;
  place-items: center;
  color: var(--ink);
  background: var(--signal);
  font-size: .65rem;
  font-weight: 900;
  letter-spacing: -.04em;
  clip-path: polygon(25% 0, 75% 0, 100% 25%, 100% 75%, 75% 100%, 25% 100%, 0 75%, 0 25%);
}
.nav-links { display: flex; align-items: center; gap: 28px; }
.nav-links a,
body.light-mode .nav-links a {
  position: relative;
  color: var(--muted);
  font-size: .76rem;
  font-weight: 680;
  letter-spacing: .07em;
  text-decoration: none;
  text-transform: uppercase;
}
.nav-links a:hover,
.nav-links a.active,
body.light-mode .nav-links a:hover,
body.light-mode .nav-links a.active { color: var(--paper); }
.nav-links a.active::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -31px;
  height: 2px;
  background: var(--signal);
}
.back-link { display: none !important; }
.theme-toggle { display: none !important; }

.hero,
.section,
.content,
.contact-card,
body.light-mode .hero,
body.light-mode .section,
body.light-mode .content,
body.light-mode .contact-card {
  color: var(--paper);
  background: transparent;
  border: 0;
  border-radius: 0;
  box-shadow: none;
}
.hero { max-width: 1000px; padding: 20px 0 64px; margin: 0 0 42px; border-bottom: 1px solid var(--line); }
.section { padding: 34px 0 42px; margin: 0; border-bottom: 1px solid var(--line); }
.content { max-width: 820px; padding: 0; margin: 0 auto; }
.content,
.post-content,
.tag-cloud-container,
.results-info { font-family: var(--sans) !important; }
.eyebrow,
body.light-mode .eyebrow {
  color: var(--signal);
  font-size: .68rem;
  font-weight: 760;
  letter-spacing: .16em;
  text-transform: uppercase;
}
h1,
body.light-mode h1 {
  max-width: 1020px;
  margin: 14px 0 24px;
  color: var(--paper);
  font-family: var(--display);
  font-size: clamp(3.4rem, 7vw, 6.8rem);
  font-weight: 500;
  letter-spacing: -.055em;
  line-height: .95;
  text-wrap: balance;
  background: none !important;
  -webkit-background-clip: border-box !important;
  background-clip: border-box !important;
  -webkit-text-fill-color: var(--paper) !important;
  text-shadow: none !important;
}
h2,
body.light-mode h2 {
  margin: 0 0 16px;
  color: var(--paper);
  font-family: var(--display);
  font-size: clamp(1.9rem, 3.5vw, 2.8rem);
  font-weight: 500;
  letter-spacing: -.03em;
  line-height: 1.08;
}
h3,
body.light-mode h3 { color: var(--paper); }
p,
li,
body.light-mode p,
body.light-mode li { color: var(--paper-soft); }
.hero > p { max-width: 820px; font-size: 1.12rem; }
ul { padding-left: 20px; }
li { margin-bottom: 10px; }

.grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1px; padding: 1px; background: var(--line); }
.mini-card,
.contact-card,
body.light-mode .mini-card,
body.light-mode .contact-card {
  min-height: 190px;
  padding: 26px;
  margin: 0;
  color: var(--paper);
  background: var(--ink);
  border: 0;
  border-radius: 0;
}
.mini-card strong,
.contact-card strong,
body.light-mode .mini-card strong,
body.light-mode .contact-card strong {
  display: block;
  margin-bottom: 10px;
  color: var(--paper);
  font-family: var(--display);
  font-size: 1.38rem;
  font-weight: 500;
  line-height: 1.2;
}

body > .container > header:not(.site-header) {
  padding: 36px 0 42px;
  margin-bottom: 44px;
  border-bottom: 1px solid var(--line);
  text-align: left;
}
body > .container > header:not(.site-header) h1 { margin-bottom: 14px; }
.content > h1:first-child { margin-bottom: 44px; }
.content h2 { margin-top: 54px; }
.content h3 { margin-top: 32px; color: var(--signal); }
.updated { margin-top: 48px; padding-top: 20px; border-top: 1px solid var(--line); color: var(--muted) !important; font-size: .82rem; }

.post-meta { color: var(--muted); }
.post-category { color: var(--signal) !important; background: transparent !important; border: 1px solid var(--line) !important; border-radius: 0 !important; }
.post-content { max-width: 780px; margin: 0 auto; color: var(--paper-soft); font-size: 1.04rem; line-height: 1.82; }
.post-content h2 { margin-top: 58px; }
.post-content pre { border: 1px solid var(--line); background: var(--surface); }
.post-tags { max-width: 780px; margin: 56px auto 0; padding-top: 24px; border-top: 1px solid var(--line); }
.tag-link { color: var(--paper-soft) !important; background: transparent !important; border-color: var(--line) !important; border-radius: 0 !important; }
.tag-link:hover { color: var(--signal) !important; border-color: var(--signal) !important; box-shadow: none !important; transform: none !important; }

.tag-header { color: var(--signal) !important; font-size: .78rem; font-weight: 760; letter-spacing: .14em; text-transform: uppercase; }
.tag-cloud-container,
.results-info { border-color: var(--line) !important; background: transparent !important; color: var(--muted) !important; }
.tag-cloud-item,
.tag-mini { color: var(--paper-soft) !important; background: var(--surface) !important; border-color: var(--line) !important; border-radius: 0 !important; }
.tag-cloud-item:hover,
.tag-mini:hover,
.tag-mini.active { color: var(--signal) !important; border-color: var(--signal) !important; box-shadow: none !important; transform: none !important; }
.posts-container { gap: 1px !important; padding: 1px; background: var(--line); }
.post-card,
body.light-mode .post-card { padding: 0 0 24px !important; background: var(--ink) !important; border: 0 !important; border-radius: 0 !important; box-shadow: none !important; }
.post-thumbnail { border-radius: 0 !important; }
.post-card > :not(.post-thumbnail) { margin-left: 22px; margin-right: 22px; }
.post-title,
body.light-mode .post-title { color: var(--paper) !important; font-family: var(--display); font-weight: 500; }
.post-summary,
.post-date,
body.light-mode .post-summary,
body.light-mode .post-date { color: var(--muted) !important; }
.post-link { color: var(--signal) !important; }
.pagination-btn { color: var(--paper-soft) !important; background: transparent !important; border-color: var(--line) !important; border-radius: 0 !important; }
.pagination-btn.active { color: var(--ink) !important; background: var(--signal) !important; }

.site-footer,
footer,
body.light-mode .site-footer,
body.light-mode footer {
  margin-top: 64px;
  padding-top: 28px;
  color: var(--muted);
  border-top: 1px solid var(--line);
  text-align: left;
}
.site-footer-links,
.footer-links { display: flex; flex-wrap: wrap; gap: 16px; margin-bottom: 16px; }
.site-footer a,
.footer-link,
body.light-mode .site-footer a,
body.light-mode .footer-link { color: var(--paper-soft); text-decoration: none; }
.site-footer a:hover,
.footer-link:hover { color: var(--signal); }
.social-links { justify-content: flex-start !important; }
.social-icon { color: var(--paper-soft) !important; }

.cookie-banner,
body.light-mode .cookie-banner { color: var(--paper-soft); background: rgba(8,11,9,.97) !important; border-color: var(--line) !important; }
.cookie-btn { border-radius: 0 !important; }
.cookie-btn.accept { color: var(--ink) !important; background: var(--signal) !important; }

@media (max-width: 760px) {
  .container,
  body.light-mode .container { width: calc(100% - 28px); padding-bottom: 48px; }
  .top-nav { min-height: 70px; margin-bottom: 42px; gap: 18px; }
  .nav-links { gap: 14px; }
  .nav-links a { font-size: .67rem; }
  .nav-links a:nth-child(2),
  .nav-links a:nth-child(3) { display: none; }
  .nav-links a.active::after { bottom: -26px; }
  .hero { padding-top: 8px; }
  h1,
  body.light-mode h1 { font-size: clamp(3rem, 15vw, 4.8rem); }
  .grid { grid-template-columns: 1fr; }
  .mini-card,
  .contact-card { min-height: 0; }
  .posts-container { grid-template-columns: 1fr !important; }
  .content h2 { margin-top: 44px; }
}