/* ═══════════════════════════════════════
   ERAS — the site as it might have looked in 1986, 1996, 2006, 2016
   and 2026. Only styling changes between eras: the text is identical.
   ═══════════════════════════════════════ */

.era-only { display: none; }

html[data-era="1996"] .era-1996,
html[data-era="2006"] .era-2006,
html[data-era="2016"] .era-2016,
html[data-era="2026"] .era-2026 { display: block; }
html[data-era="2006"] span.era-2006 { display: inline-block; }
html[data-era="2016"] .era16-byline { display: flex; }

body { transition: opacity 0.18s ease; }
body.era-fading { opacity: 0; }

.site-footer { padding-bottom: 5rem; }

/* ───────────────────────────────────────
   THE DIAL
   ─────────────────────────────────────── */

.era-dial {
  position: fixed;
  right: 16px;
  bottom: 16px;
  z-index: 10001;
  display: flex;
  align-items: center;
  gap: 1px;
  padding: 4px 6px 4px 4px;
  background: rgba(15, 15, 16, 0.9);
  border: 1px solid var(--hairline);
  border-radius: 999px;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.45);
  -webkit-backdrop-filter: blur(6px);
  backdrop-filter: blur(6px);
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  font-size: 11px;
}

.era-dial button {
  appearance: none;
  border: 0;
  background: none;
  font: inherit;
  color: var(--muted);
  letter-spacing: 0.06em;
  padding: 5px 8px;
  border-radius: 999px;
  cursor: pointer;
  transition: color 0.15s, background 0.15s;
}

.era-dial button:hover { color: var(--ink); }
.era-dial button:focus-visible { outline: 1px solid var(--copper); outline-offset: 1px; }

.era-dial button[aria-checked="true"] {
  color: var(--ink);
  background: rgba(184, 115, 51, 0.2);
}

.era-dial .era-knob {
  position: relative;
  width: 28px;
  height: 28px;
  padding: 0;
  margin-right: 5px;
  border-radius: 50%;
  background: radial-gradient(circle at 35% 30%, #ecd28f, #c6a15b 35%, #b87333 60%, #5e3818);
  box-shadow: inset 0 -2px 3px rgba(0, 0, 0, 0.45), 0 1px 3px rgba(0, 0, 0, 0.6);
}

.era-knob:hover { filter: brightness(1.08); }

.era-needle {
  position: absolute;
  left: 50%;
  top: 3px;
  width: 2px;
  height: 10px;
  margin-left: -1px;
  border-radius: 1px;
  background: #1a1208;
  transform-origin: 50% 11px;
  transition: transform 0.4s cubic-bezier(0.3, 1.6, 0.5, 1);
}

html[data-era="1986"] .era-needle { transform: rotate(-80deg); }
html[data-era="1996"] .era-needle { transform: rotate(-40deg); }
html[data-era="2006"] .era-needle { transform: rotate(0deg); }
html[data-era="2016"] .era-needle { transform: rotate(40deg); }
html[data-era="2026"] .era-needle { transform: rotate(80deg); }

@media (prefers-reduced-motion: reduce) {
  .era-needle, body { transition: none; }
  .era96-marquee a, .home-list li:first-child a::after, .site-subtitle::after { animation: none !important; }
  
  ::view-transition-group(*), ::view-transition-old(*), ::view-transition-new(*) { animation: none !important; }
}

/* ───────────────────────────────────────
   1996 — a homepage on the early web
   ─────────────────────────────────────── */

html[data-era="1996"] {
  --bg: #c0c0c0;
  --ink: #000;
  --muted: #222;
  --hairline: #808080;
  --hairline-2: #a8a8a8;
  --copper: #0000ee;
  --brass: #551a8b;
  --panel: transparent;
  background: #c0c0c0;
}

html[data-era="1996"] body {
  font-family: "Times New Roman", Times, serif;
  font-size: 17px;
  line-height: 1.4;
  color: #000;
  background: #c0c0c0;
  -webkit-font-smoothing: auto;
}

html[data-era="1996"] body::before { display: none; }
html[data-era="1996"] ::selection { background: #000080; color: #fff; }

html[data-era="1996"] a,
html[data-era="1996"] .post-body a,
html[data-era="1996"] .archive-year a,
html[data-era="1996"] .post-nav-item a {
  color: #0000ee;
  text-decoration: underline;
  border-bottom: none;
  text-shadow: none;
  transition: none;
}
html[data-era="1996"] a:visited { color: #551a8b; }
html[data-era="1996"] a:hover,
html[data-era="1996"] .archive-year a:hover { color: #ff0000; text-shadow: none; }

html[data-era="1996"] .header-plate { border: none; background: none; padding: 18px 0 6px; }

html[data-era="1996"] .site-title {
  font-family: "Times New Roman", Times, serif;
  font-size: 38px;
  font-weight: bold;
  letter-spacing: 0;
  text-transform: none;
  color: #000080 !important;
  text-decoration: none;
}

html[data-era="1996"] .site-subtitle { font-family: "Times New Roman", Times, serif; font-size: 17px; color: #000; margin-top: 2px; }

html[data-era="1996"] .site-nav { gap: 0; padding: 8px 0 14px; border-bottom: 2px groove #eee; }

html[data-era="1996"] .site-nav a {
  font-family: "Times New Roman", Times, serif;
  font-size: 17px;
  text-transform: none;
  letter-spacing: 0;
  padding: 0 6px;
  border-radius: 0;
  color: #0000ee;
}
html[data-era="1996"] .site-nav a:hover { background: none; box-shadow: none; color: #ff0000; }
html[data-era="1996"] .nav-dot { width: auto; height: auto; background: none; border-radius: 0; }

/* Marquee + under construction */

/* Lists */
html[data-era="1996"] .archive-year ul { list-style: disc; padding-left: 1.6em; }
html[data-era="1996"] .archive-year li {
  display: list-item;
  border: none;
  padding: 2px 0;
  font-size: 17px;
}
html[data-era="1996"] .archive-year time {
  display: inline;
  width: auto;
  margin-right: 0.4em;
  font: 14px "Courier New", Courier, monospace;
  color: #000;
  letter-spacing: 0;
}
html[data-era="1996"] .archive-year h2,
html[data-era="1996"] .section-heading,
html[data-era="1996"] .page-body h1,
html[data-era="1996"] .archive-body h1 {
  font-family: "Times New Roman", Times, serif;
  font-size: 24px;
  font-weight: bold;
  letter-spacing: 0;
  text-transform: none;
  color: #000;
  border-bottom: none;
}

/* Posts */
html[data-era="1996"] .post-header { border-bottom: 2px groove #eee; }
html[data-era="1996"] .post-title { font-family: "Times New Roman", Times, serif; font-size: 32px; font-weight: bold; color: #000; }
html[data-era="1996"] .post-date { font: 14px "Courier New", Courier, monospace; color: #000; letter-spacing: 0; }
html[data-era="1996"] .post-body { font-size: 17px; line-height: 1.45; }
html[data-era="1996"] .post-body img { border: 2px solid #000; border-radius: 0; }
html[data-era="1996"] .post-body blockquote { border-left: none; margin: 1em 40px; padding: 0; font-style: normal; color: #000; background: none; }
html[data-era="1996"] .post-body pre,
html[data-era="1996"] .post-body code { font-family: "Courier New", Courier, monospace; background: none; border: none; color: #000; }
html[data-era="1996"] .post-body h2,
html[data-era="1996"] .post-body h3 { font-family: "Times New Roman", Times, serif; color: #000; }
html[data-era="1996"] .nav-label { font: bold 15px "Times New Roman", Times, serif; color: #000; text-transform: none; letter-spacing: 0; }

html[data-era="1996"] .instrument-divider {
  display: block;
  height: 0;
  margin: 24px 0;
  border-top: 1px solid #808080;
  border-bottom: 1px solid #fff;
}
html[data-era="1996"] .instrument-divider > *,
html[data-era="1996"] .instrument-divider::before,
html[data-era="1996"] .instrument-divider::after { display: none; }


/* 1996 dial: a Windows 95 toolbar */
html[data-era="1996"] .era-dial {
  background: #c0c0c0;
  border: 2px outset #fff;
  border-radius: 0;
  box-shadow: 1px 1px 0 #000;
  -webkit-backdrop-filter: none;
  backdrop-filter: none;
  font: 12px Tahoma, "MS Sans Serif", Arial, sans-serif;
}
html[data-era="1996"] .era-dial button { color: #000; border-radius: 0; border: 2px solid transparent; letter-spacing: 0; }
html[data-era="1996"] .era-dial button[aria-checked="true"] { background: #d4d0c8; border: 2px inset #fff; }
html[data-era="1996"] .era-dial .era-knob { border-radius: 50%; background: radial-gradient(circle at 35% 30%, #fff, #c0c0c0 50%, #808080); border: 1px solid #000; }

/* ───────────────────────────────────────
   2006 — a Web 2.0 blog
   ─────────────────────────────────────── */

html[data-era="2006"] {
  --bg: #e8eef4;
  --ink: #333;
  --muted: #777;
  --hairline: #dde3ea;
  --hairline-2: #edf1f5;
  --copper: #1e6fc2;
  --brass: #ff6600;
  --panel: #fff;
  background: #e8eef4;
}

html[data-era="2006"] body {
  font-family: "Lucida Grande", "Lucida Sans Unicode", Verdana, Helvetica, sans-serif;
  font-size: 15px;
  line-height: 1.65;
  color: #333;
  background: linear-gradient(#aac6e2, #e8eef4 420px) no-repeat, #e8eef4;
}

html[data-era="2006"] body::before { display: none; }

html[data-era="2006"] a,
html[data-era="2006"] .post-body a,
html[data-era="2006"] .archive-year a,
html[data-era="2006"] .post-nav-item a {
  color: #1e6fc2;
  border-bottom: none;
  text-shadow: none;
}
html[data-era="2006"] a:hover,
html[data-era="2006"] .archive-year a:hover { color: #ff6600; text-decoration: underline; text-shadow: none; }

/* Header: glossy bar + tabs */
html[data-era="2006"] .site-header { max-width: 960px; padding: 0; margin: 28px auto 0; }
html[data-era="2006"] .header-plate {
  position: relative;
  text-align: left;
  padding: 30px 32px 18px;
  border: none;
  border-radius: 12px 12px 0 0;
  background: linear-gradient(#6aaeea 0%, #3a89d6 49%, #2574c8 50%, #2f7fd0 100%);
}
html[data-era="2006"] .site-title {
  display: inline-block;
  font-family: "Arial Rounded MT Bold", "Helvetica Rounded", "Trebuchet MS", Arial, sans-serif;
  font-size: 40px;
  font-weight: bold;
  letter-spacing: -1.5px;
  text-transform: none;
  color: #fff !important;
  text-shadow: 0 2px 0 rgba(0, 0, 0, 0.2);
  line-height: 1;
}

html[data-era="2006"] .site-subtitle { font-family: "Lucida Grande", Verdana, sans-serif; color: #e2efff; font-style: normal; font-size: 13px; margin-top: 8px; }

html[data-era="2006"] .site-nav {
  justify-content: flex-start;
  gap: 4px;
  padding: 8px 24px 0;
  background: #2574c8;
  border-bottom: 1px solid #1b5ea8;
}
html[data-era="2006"] .site-nav a {
  font-family: "Lucida Grande", Verdana, sans-serif;
  font-size: 12px;
  font-weight: bold;
  text-transform: none;
  letter-spacing: 0;
  padding: 7px 16px;
  border-radius: 7px 7px 0 0;
  color: #1e4f86;
  background: linear-gradient(#f7fafd, #d4e2f0);
}
html[data-era="2006"] .site-nav a:hover { background: #fff; color: #ff6600; box-shadow: none; text-decoration: none; }
html[data-era="2006"] .nav-dot { display: none; }

/* Two-column body */

html[data-era="2006"] .main-col { max-width: none; margin: 0; padding: 30px 36px 40px; }

/* Footer strip */
html[data-era="2006"] .site-footer {
  max-width: 960px;
  margin: 0 auto 80px;
  padding: 12px 36px;
  border-radius: 0 0 12px 12px;
  background: linear-gradient(#f0f3f7, #dde4ec);
  border-top: 1px solid #cfd8e2;
  font-size: 11px;
  color: #7a8898;
  text-align: center;
}

/* Content */
html[data-era="2006"] .archive-year h2,
html[data-era="2006"] .section-heading,
html[data-era="2006"] .page-body h1,
html[data-era="2006"] .archive-body h1 {
  font-family: "Trebuchet MS", "Lucida Grande", sans-serif;
  font-size: 18px;
  font-weight: bold;
  letter-spacing: 0;
  text-transform: none;
  color: #1e4f86;
  border-bottom: 1px dotted #c3cfdc;
}
html[data-era="2006"] .archive-year li { border-bottom: 1px dotted #e1e7ee; font-size: 14px; }
html[data-era="2006"] .archive-year time { font: 11px "Lucida Grande", Verdana, sans-serif; color: #999; }

html[data-era="2006"] .post-header { border-bottom: 1px dotted #c3cfdc; }
html[data-era="2006"] .post-title {
  font-family: "Trebuchet MS", "Lucida Grande", sans-serif;
  font-size: 26px;
  font-weight: bold;
  letter-spacing: -0.5px;
  color: #1e4f86;
}
html[data-era="2006"] .post-date {
  display: inline-block;
  padding: 1px 8px;
  border-radius: 4px;
  background: #eef3f8;
  border: 1px solid #dde3ea;
  font: 11px "Lucida Grande", Verdana, sans-serif;
  color: #667;
  letter-spacing: 0;
}
html[data-era="2006"] .post-body { font-size: 15px; line-height: 1.7; }
html[data-era="2006"] .post-body h2,
html[data-era="2006"] .post-body h3 { font-family: "Trebuchet MS", "Lucida Grande", sans-serif; color: #1e4f86; }
html[data-era="2006"] .post-body img { border: 1px solid #ddd; padding: 4px; background: #fff; border-radius: 0; }
html[data-era="2006"] .post-body blockquote {
  border-left: 4px solid #9fc0e3;
  background: #f5f8fb;
  padding: 10px 16px;
  font-style: normal;
  color: #445;
}
html[data-era="2006"] .post-body pre { background: #f7f7f2; border: 1px solid #e3e3d6; }

html[data-era="2006"] .instrument-divider { display: block; height: 0; margin: 24px 0; border-top: 1px dotted #c3cfdc; }
html[data-era="2006"] .instrument-divider > *,
html[data-era="2006"] .instrument-divider::before,
html[data-era="2006"] .instrument-divider::after { display: none; }
html[data-era="2006"] .nav-label { font: bold 11px "Lucida Grande", Verdana, sans-serif; color: #999; }

/* 2006 dial: glossy aqua pills */
html[data-era="2006"] .era-dial {
  background: linear-gradient(#fff, #e2e8ef);
  border: 1px solid #a9b6c4;
  border-radius: 16px;
  box-shadow: 0 2px 8px rgba(30, 60, 100, 0.25);
  font: bold 11px "Lucida Grande", Verdana, sans-serif;
}
html[data-era="2006"] .era-dial button { color: #345; letter-spacing: 0; }
html[data-era="2006"] .era-dial button[aria-checked="true"] {
  color: #fff;
  text-shadow: 0 -1px 0 rgba(0, 0, 0, 0.3);
  background: linear-gradient(#9dccf8, #3d8fe0 50%, #2a7fd6 51%, #62adf2);
}
html[data-era="2006"] .era-dial .era-knob { background: radial-gradient(circle at 35% 28%, #fff, #8cc4f7 30%, #2a7fd6 70%, #1b5ea8); }

@media (max-width: 768px) {
  html[data-era="2006"] .site-header { margin-top: 0; }
  html[data-era="2006"] .header-plate { border-radius: 0; padding: 22px 18px 14px; }
  html[data-era="2006"] .site-nav { padding: 8px 10px 0; overflow-x: auto; }
  html[data-era="2006"] .site-nav a { padding: 6px 10px; }
  
  html[data-era="2006"] .main-col { padding: 22px 18px 30px; }
  
  html[data-era="2006"] .site-footer { border-radius: 0; margin-bottom: 70px; }
  html[data-era="1996"] .site-title { font-size: 28px; }
  .era-dial { right: 8px; bottom: 8px; }
  .era-dial button { padding: 5px 6px; }
}

/* ───────────────────────────────────────
   2016 — the Medium era
   ─────────────────────────────────────── */

html[data-era="2016"] {
  --bg: #fff;
  --ink: rgba(0, 0, 0, 0.84);
  --muted: rgba(0, 0, 0, 0.54);
  --hairline: rgba(0, 0, 0, 0.1);
  --hairline-2: rgba(0, 0, 0, 0.06);
  --copper: #03a87c;
  --brass: #028a66;
  --panel: transparent;
  --col: 740px;
  background: #fff;
}

html[data-era="2016"] body {
  /* Not Charter: its non-breaking space is double width, and old posts are full of them */
  font-family: Georgia, Cambria, "Times New Roman", Times, serif;
  font-size: 21px;
  line-height: 1.58;
  letter-spacing: -0.003em;
  color: rgba(0, 0, 0, 0.84);
  background: #fff;
}
html[data-era="2016"] body::before { display: none; }
html[data-era="2016"] ::selection { background: rgba(3, 168, 124, 0.2); }

html[data-era="2016"] a,
html[data-era="2016"] .post-body a,
html[data-era="2016"] .archive-year a,
html[data-era="2016"] .post-nav-item a {
  color: inherit;
  border-bottom: none;
  text-shadow: none;
}
html[data-era="2016"] .post-body a {
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 0.12em;
}

/* Sticky white top bar */
html[data-era="2016"] .site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: none;
  padding: 0 max(20px, calc((100% - 1032px) / 2));
  height: 65px;
  background: rgba(255, 255, 255, 0.97);
  box-shadow: 0 2px 2px -2px rgba(0, 0, 0, 0.15);
}
html[data-era="2016"] .header-plate {
  display: flex;
  align-items: baseline;
  gap: 14px;
  border: none;
  background: none;
  padding: 0;
  text-align: left;
}
html[data-era="2016"] .site-subtitle {
  margin: 0;
  font: 14px -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  font-style: normal;
  letter-spacing: 0;
  color: rgba(0, 0, 0, 0.54);
}
html[data-era="2016"] .site-title {
  font-family: Georgia, "Times New Roman", serif;
  font-size: 26px;
  font-weight: bold;
  letter-spacing: -0.5px;
  text-transform: none;
  color: rgba(0, 0, 0, 0.84) !important;
}
html[data-era="2016"] .site-nav { gap: 18px; padding: 0; }
html[data-era="2016"] .site-nav a {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  font-size: 15px;
  text-transform: none;
  letter-spacing: 0;
  color: rgba(0, 0, 0, 0.54);
  padding: 0;
}
html[data-era="2016"] .site-nav a:hover { color: rgba(0, 0, 0, 0.84); background: none; box-shadow: none; }
html[data-era="2016"] .site-nav a:last-child {
  padding: 5px 14px;
  border: 1px solid #03a87c;
  border-radius: 4px;
  color: #03a87c;
}
html[data-era="2016"] .site-nav a:last-child:hover { background: #03a87c; color: #fff; }
html[data-era="2016"] .nav-dot { display: none; }

html[data-era="2016"] .main-col { padding-top: 48px; }

/* Stream */
html[data-era="2016"] .archive-year li {
  flex-direction: column-reverse;
  gap: 2px;
  padding: 18px 0;
  border-bottom: 1px solid rgba(0, 0, 0, 0.06);
}
html[data-era="2016"] .archive-year a {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  font-size: 22px;
  font-weight: 700;
  line-height: 1.22;
  letter-spacing: -0.02em;
}
html[data-era="2016"] .archive-year a:hover { color: rgba(0, 0, 0, 0.6); }
html[data-era="2016"] .archive-year time {
  width: auto;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  font-size: 14px;
  letter-spacing: 0;
  color: rgba(0, 0, 0, 0.54);
}
html[data-era="2016"] .archive-year h2,
html[data-era="2016"] .section-heading,
html[data-era="2016"] .page-body h1,
html[data-era="2016"] .archive-body h1 {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: rgba(0, 0, 0, 0.54);
  border-bottom: 1px solid rgba(0, 0, 0, 0.1);
}

/* Post */
html[data-era="2016"] .post-header { border-bottom: none; margin-bottom: 1.5rem; }
html[data-era="2016"] .post-title {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  font-size: 42px;
  font-weight: 700;
  line-height: 1.12;
  letter-spacing: -0.028em;
  color: rgba(0, 0, 0, 0.84);
}

html[data-era="2016"] .post-body { font-size: 21px; line-height: 1.58; }
html[data-era="2016"] .post-body p { margin-bottom: 1.5em; }
html[data-era="2016"] .post-body h2,
html[data-era="2016"] .post-body h3 {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: rgba(0, 0, 0, 0.84);
}
html[data-era="2016"] .post-body blockquote {
  margin: 1.5em 0 1.5em -23px;
  padding: 0 0 0 20px;
  border-left: 3px solid rgba(0, 0, 0, 0.84);
  background: none;
  font-style: italic;
  color: rgba(0, 0, 0, 0.84);
}
html[data-era="2016"] .post-body img { border: none; border-radius: 0; }
html[data-era="2016"] .post-body pre { background: rgba(0, 0, 0, 0.05); border: none; border-radius: 3px; }

html[data-era="2016"] .instrument-divider { display: block; text-align: center; margin: 40px 0; }
html[data-era="2016"] .instrument-divider::before { content: "\2026"; display: block; height: auto; background: none; font-size: 28px; letter-spacing: 0.6em; color: rgba(0, 0, 0, 0.68); }
html[data-era="2016"] .instrument-divider > *,
html[data-era="2016"] .instrument-divider::after { display: none; }
html[data-era="2016"] .nav-label {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  font-size: 12px;
  color: rgba(0, 0, 0, 0.54);
}
html[data-era="2016"] .post-nav-item a {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  font-weight: 700;
}

/* 2016 dial */
html[data-era="2016"] .era-dial {
  background: #fff;
  border: 1px solid rgba(0, 0, 0, 0.1);
  border-radius: 4px;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.1);
  font: 13px -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}
html[data-era="2016"] .era-dial button { color: rgba(0, 0, 0, 0.54); border-radius: 3px; letter-spacing: 0; }
html[data-era="2016"] .era-dial button[aria-checked="true"] { background: none; color: #03a87c; box-shadow: inset 0 0 0 1px #03a87c; }
html[data-era="2016"] .era-dial .era-knob { background: #fff; border: 1px solid rgba(0, 0, 0, 0.2); box-shadow: none; }
html[data-era="2016"] .era-dial .era-needle { background: #03a87c; }

/* ───────────────────────────────────────
   2026 — today: editorial, quiet, light or dark
   ─────────────────────────────────────── */

@view-transition { navigation: auto; }
::view-transition-old(root),
::view-transition-new(root) { animation-duration: 0.22s; }

html[data-era="2026"] {
  --bg: #f7f5f0;
  --ink: #1c1a17;
  --muted: #6f6a61;
  --hairline: rgba(28, 26, 23, 0.14);
  --hairline-2: rgba(28, 26, 23, 0.07);
  --copper: #a4561c;
  --brass: #7a3f12;
  --panel: rgba(28, 26, 23, 0.03);
  --col: 44rem;
  color-scheme: light;
  background: var(--bg);
}

@media (prefers-color-scheme: dark) {
  html[data-era="2026"] {
    --bg: #131312;
    --ink: #ebe7df;
    --muted: #9a948a;
    --hairline: rgba(235, 231, 223, 0.14);
    --hairline-2: rgba(235, 231, 223, 0.07);
    --copper: #d9894a;
    --brass: #efb07a;
    --panel: rgba(255, 255, 255, 0.03);
    color-scheme: dark;
  }
}

html[data-era="2026"] body {
  font-family: "Newsreader", "Iowan Old Style", Georgia, serif;
  font-optical-sizing: auto;
  font-size: 20px;
  line-height: 1.6;
  color: var(--ink);
  background: var(--bg);
  text-wrap: pretty;
}
html[data-era="2026"] body::before { display: none; }
html[data-era="2026"] ::selection { background: color-mix(in srgb, var(--copper) 25%, transparent); }

html[data-era="2026"] a,
html[data-era="2026"] .archive-year a,
html[data-era="2026"] .post-nav-item a {
  color: var(--ink);
  border-bottom: none;
  text-shadow: none;
}
html[data-era="2026"] a:hover { color: var(--copper); text-shadow: none; }
html[data-era="2026"] .post-body a {
  color: inherit;
  border-bottom: none;
  text-decoration: underline;
  text-decoration-color: color-mix(in srgb, var(--copper) 55%, transparent);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.2em;
  transition: text-decoration-color 0.15s, text-decoration-thickness 0.15s;
}
html[data-era="2026"] .post-body a:hover { color: inherit; text-decoration-color: var(--copper); text-decoration-thickness: 2px; }

/* Header: wordmark left, nav right */
html[data-era="2026"] .site-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  padding: 2.25rem 1.5rem 0;
}
html[data-era="2026"] .header-plate {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 0.25rem 0.75rem;
  border: none;
  background: none;
  padding: 0;
  text-align: left;
}
html[data-era="2026"] .site-subtitle {
  margin: 0;
  font-family: "Newsreader", Georgia, serif;
  font-size: 0.85rem;
  font-style: italic;
  letter-spacing: 0;
  color: var(--muted);
}
html[data-era="2026"] .site-title {
  font-family: "Newsreader", Georgia, serif;
  font-size: 1.35rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  text-transform: none;
  color: var(--ink);
}
html[data-era="2026"] .site-title:hover { color: var(--copper); text-shadow: none; }
html[data-era="2026"] .site-nav { gap: 1.1rem; padding: 0; }
html[data-era="2026"] .site-nav a {
  font-family: "IBM Plex Sans", system-ui, sans-serif;
  font-size: 0.8rem;
  text-transform: none;
  letter-spacing: 0;
  color: var(--muted);
  padding: 0;
}
html[data-era="2026"] .site-nav a:hover { color: var(--ink); background: none; box-shadow: none; }
html[data-era="2026"] .nav-dot { display: none; }

html[data-era="2026"] .main-col { padding-top: 3.5rem; }

html[data-era="2026"] .archive-year li {
  gap: 1.5rem;
  padding: 0.85rem 0;
  border-bottom: 1px solid var(--hairline-2);
  font-size: 1.12rem;
  line-height: 1.35;
}
html[data-era="2026"] .archive-year li:first-child { border-top: 1px solid var(--hairline-2); }
html[data-era="2026"] .archive-year li:last-child { border-bottom: 1px solid var(--hairline-2); }
html[data-era="2026"] .archive-year time {
  order: 2;
  margin-left: auto;
  width: auto;
  padding-left: 1rem;
  font-family: "IBM Plex Mono", ui-monospace, Menlo, monospace;
  font-size: 12px;
  color: var(--muted);
}
html[data-era="2026"] .archive-year a { transition: color 0.15s, transform 0.2s; }
html[data-era="2026"] .archive-year li:hover a { color: var(--copper); }

html[data-era="2026"] .archive-year h2,
html[data-era="2026"] .section-heading {
  position: sticky;
  top: 0;
  z-index: 2;
  padding: 0.75rem 0 0.5rem;
  background: var(--bg);
  font-family: "IBM Plex Sans", system-ui, sans-serif;
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  color: var(--muted);
  border-bottom: none;
}
html[data-era="2026"] .page-body h1,
html[data-era="2026"] .archive-body h1 {
  font-family: "Newsreader", Georgia, serif;
  font-size: 2.4rem;
  font-weight: 500;
  letter-spacing: -0.02em;
  text-transform: none;
  color: var(--ink);
  border-bottom: none;
}

/* Post */
html[data-era="2026"] .post-header { border-bottom: none; margin-bottom: 2.75rem; padding-bottom: 0; }
html[data-era="2026"] .post-date {
  font-family: "IBM Plex Mono", ui-monospace, Menlo, monospace;
  font-size: 12px;
  color: var(--muted);
  margin-bottom: 1rem;
}
html[data-era="2026"] .post-title {
  font-family: "Newsreader", Georgia, serif;
  font-size: clamp(2.1rem, 1.3rem + 3.2vw, 3.3rem);
  font-weight: 500;
  line-height: 1.08;
  letter-spacing: -0.022em;
  text-wrap: balance;
  color: var(--ink);
}
html[data-era="2026"] .post-body { font-size: 1.2rem; line-height: 1.65; }
html[data-era="2026"] .post-body p { margin-bottom: 1.35em; }
html[data-era="2026"] .post-body h2,
html[data-era="2026"] .post-body h3 {
  font-family: "Newsreader", Georgia, serif;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--ink);
}
html[data-era="2026"] .post-body blockquote {
  margin: 2rem 0;
  padding: 0 0 0 1.25rem;
  border-left: 2px solid var(--copper);
  background: none;
  font-style: italic;
  color: var(--ink);
}
html[data-era="2026"] .post-body img { border: none; border-radius: 6px; }
html[data-era="2026"] .post-body pre,
html[data-era="2026"] .post-body code { background: var(--panel); border-color: var(--hairline-2); color: var(--ink); }
html[data-era="2026"] .post-body hr { border-top-color: var(--hairline); }

html[data-era="2026"] .instrument-divider { margin: 3rem 0 2rem; }
html[data-era="2026"] .instrument-divider::before,
html[data-era="2026"] .instrument-divider::after { background: var(--hairline); }
html[data-era="2026"] .div-dot { background: var(--copper); border-color: var(--copper); opacity: 0.5; }
html[data-era="2026"] .nav-label { font-family: "IBM Plex Mono", ui-monospace, monospace; color: var(--muted); }
html[data-era="2026"] .post-nav-item { font-size: 1.05rem; }

/* 2026 dial */
html[data-era="2026"] .era-dial {
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  border: 1px solid var(--hairline);
  box-shadow: 0 8px 28px rgba(0, 0, 0, 0.12);
  font: 500 12px "IBM Plex Sans", system-ui, sans-serif;
}
html[data-era="2026"] .era-dial button { color: var(--muted); letter-spacing: 0; }
html[data-era="2026"] .era-dial button:hover { color: var(--ink); }
html[data-era="2026"] .era-dial button[aria-checked="true"] { background: var(--ink); color: var(--bg); }

@media (max-width: 768px) {
  html[data-era="2016"] .site-nav { gap: 10px; }
  html[data-era="2016"] .site-nav a { font-size: 13px; }
  html[data-era="2016"] .site-nav a:last-child { padding: 3px 8px; }
  html[data-era="2016"] .site-title { font-size: 22px; }
  html[data-era="2016"] .site-header { flex-wrap: wrap; height: auto; padding-top: 10px; padding-bottom: 10px; gap: 6px; }
  html[data-era="2016"] .header-plate { flex-direction: column; gap: 0; }
  html[data-era="2016"] .post-title { font-size: 32px; }
  html[data-era="2016"] body, html[data-era="2016"] .post-body { font-size: 18px; }
  html[data-era="2026"] .site-header { flex-direction: column; gap: 0.4rem; padding: 1.5rem 1rem 0; }
  html[data-era="2026"] .archive-year li { flex-direction: row; align-items: baseline; gap: 1rem; }
  html[data-era="2026"] .archive-year time { flex-shrink: 0; white-space: nowrap; padding-left: 0; }
  html[data-era="2026"] .main-col { padding-top: 2.25rem; }
  html[data-era="2026"] body { font-size: 18px; }
  html[data-era="2026"] .post-body { font-size: 1.1rem; }
  .era-dial button { padding: 5px 5px; }
}

/* ───────────────────────────────────────
   PERIOD DECORATIONS
   Extras shown in one era only. They sit around the site's text and
   never replace it.
   ─────────────────────────────────────── */

/* 1996: nav brackets, marquee, construction sign, NEW!, counter, badges */
html[data-era="1996"] .site-nav::before { content: "[\00a0"; }
html[data-era="1996"] .site-nav::after { content: "\00a0]"; }
html[data-era="1996"] .nav-dot::before { content: "|"; color: #000; }

html[data-era="1996"] .era96-top { max-width: var(--col); margin: 14px auto 0; padding: 0 1.5rem; }
.era96-marquee {
  overflow: hidden;
  white-space: nowrap;
  background: #000080;
  padding: 3px 0;
  border: 2px inset #eee;
}
html[data-era="1996"] .era96-marquee a {
  display: inline-block;
  padding-left: 100%;
  color: #ffff00;
  text-decoration: none;
  font: bold 15px "Courier New", Courier, monospace;
  animation: era96-scroll 20s linear infinite;
}
html[data-era="1996"] .era96-marquee a:hover { color: #fff; }
@keyframes era96-scroll { to { transform: translateX(-100%); } }

.era96-construction { text-align: center; margin-top: 12px; }
.era96-construction span {
  display: inline-block;
  padding: 2px 12px;
  background: #ffcc00;
  font: bold 13px Arial, Helvetica, sans-serif;
  letter-spacing: 0.08em;
  border: 6px solid transparent;
  border-image: repeating-linear-gradient(45deg, #000 0 6px, #ffcc00 6px 12px) 6;
}

html[data-era="1996"] .home-list li:first-child a::after {
  content: "NEW!";
  display: inline-block;
  margin-left: 6px;
  color: #ff0000;
  font: bold 13px Arial, Helvetica, sans-serif;
  text-decoration: none;
  animation: era96-blink 1s steps(1) infinite;
}
@keyframes era96-blink { 50% { visibility: hidden; } }

.era96-footer { text-align: center; font-size: 14px; }
.era96-footer hr { border: 0; border-top: 1px solid #808080; border-bottom: 1px solid #fff; margin: 12px 0 18px; }
.era96-footer p { margin: 8px 0; }
.era96-counter b {
  display: inline-block;
  margin: 0 1px;
  padding: 0 4px;
  background: #000;
  color: #00ff00;
  font: bold 16px "Courier New", Courier, monospace;
  border: 1px inset #777;
}
.era96-badge {
  display: inline-block;
  margin: 4px;
  padding: 4px 10px;
  background: #d4d0c8;
  border: 2px outset #fff;
  font: 11px/1.25 Arial, Helvetica, sans-serif;
}
.era96-updated { font-style: italic; }

/* 2006: beta badge, sidebar, post meta, footer strip */
html[data-era="2006"] .era06-beta {
  vertical-align: top;
  margin-left: 6px;
  padding: 2px 7px;
  border-radius: 4px;
  background: linear-gradient(#ffac5c, #ff6a00);
  border: 1px solid #d45800;
  color: #fff;
  font: bold 11px Verdana, sans-serif;
  transform: rotate(-10deg);
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
}

html[data-era="2006"] .page-wrap {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 250px;
  max-width: 960px;
  margin: 0 auto;
  background: #fff;
  box-shadow: 0 3px 10px rgba(30, 60, 100, 0.15);
}

.era06-sidebar {
  padding: 26px 22px;
  background: #f5f8fb;
  border-left: 1px solid #e1e7ee;
  font-size: 12px;
  line-height: 1.55;
}
.era06-sidebar section { margin-bottom: 26px; }
.era06-sidebar section::after { content: ""; display: block; clear: both; }
.era06-sidebar h3 {
  margin: 0 0 10px;
  padding-bottom: 4px;
  border-bottom: 1px dotted #b9c6d4;
  font-size: 11px;
  font-weight: bold;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: #6a7f96;
}
.era06-sidebar img { float: left; margin: 2px 10px 6px 0; padding: 2px; background: #fff; border: 1px solid #ccd5df; }
.era06-sidebar p { margin-bottom: 6px; }
.era06-rss {
  display: inline-block;
  margin: 0 4px 4px 0;
  padding: 3px 10px;
  border-radius: 3px;
  border: 1px solid #d86400 !important;
  background: linear-gradient(#ffb066, #ff7b00);
  color: #fff !important;
  font-weight: bold;
  font-size: 11px;
}
.era06-rss--alt { border-color: #1b5ea8 !important; background: linear-gradient(#7fb7ee, #2f7fd0); }
.era06-rss:hover { text-decoration: none !important; filter: brightness(1.08); }
.era06-archive { list-style: none; columns: 2; }
.era06-archive span { color: #999; }
.era06-cloud { line-height: 1.5; }
.era06-cloud a { white-space: nowrap; }
.era06-cloud .w1 { font-size: 10px; }
.era06-cloud .w2 { font-size: 12px; }
.era06-cloud .w3 { font-size: 14px; }
.era06-cloud .w4 { font-size: 17px; font-weight: bold; }
.era06-cloud .w5 { font-size: 21px; font-weight: bold; letter-spacing: -0.5px; }

.era06-postmeta {
  margin-top: 28px;
  padding: 8px 12px;
  background: #f5f8fb;
  border-top: 1px solid #dde3ea;
  border-bottom: 1px solid #dde3ea;
  font-size: 12px;
  color: #777;
}

html[data-era="2006"] .site-footer::before { content: "Valid XHTML 1.0 Strict \00b7  CSS \00b7  RSS 2.0 \00b7  Now with 100% more Ajax"; }

/* 2016: byline */
html[data-era="2016"] .post-date { display: none; }
.era16-byline { align-items: center; gap: 12px; margin-top: 22px; }
.era16-byline img { border-radius: 50%; }
.era16-byline div {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  font-size: 15px;
  line-height: 1.4;
}
.era16-author { color: rgba(0, 0, 0, 0.84); }
.era16-meta { color: rgba(0, 0, 0, 0.54); font-size: 14px; }
html[data-era="2016"] .era16-follow {
  display: inline-block;
  margin-left: 6px;
  padding: 0 8px;
  border: 1px solid #03a87c;
  border-radius: 4px;
  color: #03a87c;
  font-size: 13px;
  line-height: 20px;
  text-decoration: none;
}
html[data-era="2016"] .era16-follow:hover { background: #03a87c; color: #fff; }

@media (max-width: 768px) {
  html[data-era="2006"] .page-wrap { grid-template-columns: minmax(0, 1fr); }
  html[data-era="2006"] .era06-sidebar { border-left: none; border-top: 1px solid #e1e7ee; }
}

/* ───────────────────────────────────────
   1986 — dialing into a BBS
   80 columns, the 16-color PC palette, box-drawing borders.
   ─────────────────────────────────────── */

html[data-era="1986"] {
  --bg: #000;
  --ink: #aaa;
  --muted: #aaa;
  --hairline: #555;
  --hairline-2: #333;
  --copper: #55ffff;
  --brass: #ffff55;
  --panel: transparent;
  --col: calc(80ch + 3rem);
  background: #000;
}

html[data-era="1986"] body {
  font-family: "VT323", "Courier New", monospace;
  font-size: 22px;
  line-height: 1.3;
  color: #aaa;
  background: #000;
}
html[data-era="1986"] body::before { display: none; }
html[data-era="1986"] ::selection { background: #aaa; color: #000; }

html[data-era="1986"] a,
html[data-era="1986"] .post-body a,
html[data-era="1986"] .archive-year a,
html[data-era="1986"] .post-nav-item a {
  color: #55ffff;
  text-decoration: none;
  border-bottom: none;
  text-shadow: none;
  transition: none;
}
html[data-era="1986"] a:hover,
html[data-era="1986"] .archive-year a:hover { background: #55ffff; color: #000; text-shadow: none; }

/* Header: double-line box on blue */
html[data-era="1986"] .header-plate {
  border: 4px double #55ffff;
  background: #0000aa;
  padding: 12px 1ch 10px;
}
html[data-era="1986"] .site-title {
  font-family: "VT323", monospace;
  font-size: 40px;
  font-weight: normal;
  letter-spacing: 0.25em;
  color: #ffff55;
  line-height: 1.1;
}
html[data-era="1986"] .site-title:hover { background: none; color: #fff; text-shadow: none; }
html[data-era="1986"] .site-title::before { content: "\2591\2592\2593 "; color: #55ffff; letter-spacing: 0; }
html[data-era="1986"] .site-title::after { content: " \2593\2592\2591"; color: #55ffff; letter-spacing: 0; }
html[data-era="1986"] .site-subtitle {
  font-family: "VT323", monospace;
  font-size: 22px;
  font-style: normal;
  letter-spacing: 0;
  color: #fff;
  margin-top: 4px;
}
html[data-era="1986"] .site-subtitle::after {
  content: "\2588";
  margin-left: 0.3ch;
  color: #aaa;
  animation: era86-blink 1.06s steps(1) infinite;
}
@keyframes era86-blink { 50% { visibility: hidden; } }

/* Nav: numbered menu, and the number keys work */
html[data-era="1986"] .site-nav { counter-reset: menu; gap: 3ch; padding: 10px 0 6px; }
html[data-era="1986"] .site-nav a {
  counter-increment: menu;
  font-family: "VT323", monospace;
  font-size: 22px;
  text-transform: none;
  letter-spacing: 0;
  color: #aaa;
  padding: 0;
  border-radius: 0;
}
html[data-era="1986"] .site-nav a::before { content: "[" counter(menu) "] "; color: #ffff55; }
html[data-era="1986"] .site-nav a:hover { background: #aaa; color: #000; box-shadow: none; }
html[data-era="1986"] .nav-dot { display: none; }

/* Lists: a numbered message index */
html[data-era="1986"] .archive-year { counter-reset: msg; }
html[data-era="1986"] .archive-year li {
  counter-increment: msg;
  gap: 2ch;
  padding: 0;
  border: none;
  font-size: 22px;
  line-height: 1.35;
}
html[data-era="1986"] .archive-year li::before { content: counter(msg, decimal-leading-zero); flex-shrink: 0; color: #555; }
html[data-era="1986"] .archive-year time {
  width: 10ch;
  font-family: "VT323", monospace;
  font-size: 22px;
  letter-spacing: 0;
  color: #55ff55;
}
html[data-era="1986"] .archive-year h2,
html[data-era="1986"] .section-heading,
html[data-era="1986"] .page-body h1,
html[data-era="1986"] .archive-body h1 {
  font-family: "VT323", monospace;
  font-size: 22px;
  font-weight: normal;
  letter-spacing: 0;
  text-transform: none;
  color: #fff;
  background: #0000aa;
  padding: 0 1ch;
  border: none;
}

/* Posts: a message with a header block */
html[data-era="1986"] .post-header { border-bottom: 3px double #555; padding-bottom: 10px; margin-bottom: 1.25rem; }
html[data-era="1986"] .post-date {
  font-family: "VT323", monospace;
  font-size: 22px;
  letter-spacing: 0;
  color: #55ff55;
  white-space: pre;
  margin-bottom: 0;
}
html[data-era="1986"] .post-date::before { content: "Date:    "; color: #aaa; }
html[data-era="1986"] .post-title {
  font-family: "VT323", monospace;
  font-size: 22px;
  font-weight: normal;
  letter-spacing: 0;
  line-height: 1.3;
  color: #ffff55;
  padding-left: 9ch;
  text-indent: -9ch;
}
html[data-era="1986"] .post-title::before { content: "Subject: "; color: #aaa; white-space: pre; }
html[data-era="1986"] .post-body { font-size: 22px; line-height: 1.35; }
html[data-era="1986"] .post-body h2,
html[data-era="1986"] .post-body h3 { font-family: "VT323", monospace; font-weight: normal; color: #fff; }
html[data-era="1986"] .post-body blockquote {
  margin: 1em 0;
  padding: 0 0 0 1.5ch;
  border-left: 0.6ch solid #00aa00;
  background: none;
  font-style: normal;
  color: #55ff55;
}
html[data-era="1986"] .post-body pre,
html[data-era="1986"] .post-body code { font-family: "VT323", monospace; background: none; border: none; color: #fff; }
html[data-era="1986"] .post-body pre { font-size: 20px; line-height: 1.3; padding: 0.5rem 0; }
html[data-era="1986"] .post-body img { image-rendering: pixelated; border: 2px solid #555; border-radius: 0; }
html[data-era="1986"] .post-body hr { border-top: 2px dashed #555; }
html[data-era="1986"] .post-body::after { content: "-- End of message --"; display: block; margin-top: 1.5rem; color: #555; }

html[data-era="1986"] .instrument-divider { display: block; overflow: hidden; white-space: nowrap; margin: 1.5rem 0 1rem; color: #555; }
html[data-era="1986"] .instrument-divider::before {
  content: "\2550\2550\2550\2550\2550\2550\2550\2550\2550\2550\2550\2550\2550\2550\2550\2550\2550\2550\2550\2550\2550\2550\2550\2550\2550\2550\2550\2550\2550\2550\2550\2550\2550\2550\2550\2550\2550\2550\2550\2550\2550\2550\2550\2550\2550\2550\2550\2550\2550\2550\2550\2550\2550\2550\2550\2550\2550\2550\2550\2550\2550\2550\2550\2550\2550\2550\2550\2550\2550\2550\2550\2550\2550\2550\2550\2550\2550\2550\2550\2550";
  display: block;
  height: auto;
  background: none;
}
html[data-era="1986"] .instrument-divider > *,
html[data-era="1986"] .instrument-divider::after { display: none; }

html[data-era="1986"] .post-nav-item { font-size: 22px; }
html[data-era="1986"] .nav-label {
  font-family: "VT323", monospace;
  font-size: 22px;
  letter-spacing: 0;
  text-transform: none;
  color: #aaa;
}
html[data-era="1986"] .nav-label[data-key]::before { content: "[" attr(data-key) "] "; color: #ffff55; }

/* 1986 dial: a blue status bar */
html[data-era="1986"] .era-dial {
  background: #0000aa;
  border: 2px solid #aaa;
  border-radius: 0;
  box-shadow: none;
  -webkit-backdrop-filter: none;
  backdrop-filter: none;
  font: 20px "VT323", monospace;
}
html[data-era="1986"] .era-dial button { color: #fff; border-radius: 0; padding: 2px 7px; letter-spacing: 0; }
html[data-era="1986"] .era-dial button[aria-checked="true"] { background: #55ffff; color: #000; }
html[data-era="1986"] .era-dial .era-knob { border-radius: 0; background: #aaa; box-shadow: none; }
html[data-era="1986"] .era-dial .era-needle { background: #000; }

@media (max-width: 768px) {
  html[data-era="1986"] body,
  html[data-era="1986"] .post-body,
  html[data-era="1986"] .archive-year li { font-size: 19px; }
  html[data-era="1986"] .site-title { font-size: 30px; letter-spacing: 0.1em; }
  html[data-era="1986"] .site-nav { gap: 1.5ch; flex-wrap: wrap; }
  html[data-era="1986"] .archive-year li::before { display: none; }
}

/* Phones: the dial shrinks to just the knob; tapping it steps through the eras */
@media (max-width: 768px) {
  .era-dial,
  html[data-era] .era-dial { padding: 3px; gap: 0; }
  .era-dial button[data-set-era] { display: none; }
  .era-dial button[data-set-era][aria-checked="true"] { display: inline-block; margin: 0 4px 0 2px; }
  .era-dial .era-knob { width: 40px; height: 40px; margin: 0; }
  .era-dial .era-needle { top: 5px; height: 14px; transform-origin: 50% 15px; }
  .site-footer { padding-bottom: 4rem; }
}

/* "Full archive" link, per era */
html[data-era="1986"] .home-more { font: 22px "VT323", monospace; letter-spacing: 0; }
html[data-era="1996"] .home-more { font: 17px "Times New Roman", Times, serif; letter-spacing: 0; margin-top: 1rem; padding-top: 0.5rem; }
html[data-era="2006"] .home-more { font: bold 13px "Lucida Grande", Verdana, sans-serif; letter-spacing: 0; }
html[data-era="2016"] .home-more { font: 15px -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif; letter-spacing: 0; }
html[data-era="2016"] .home-more a { color: #03a87c; }
html[data-era="2026"] .home-more { font-family: "IBM Plex Sans", system-ui, sans-serif; }

@media (max-width: 768px) {
  html[data-era="1996"] .era96-top { padding: 0 1rem; }
  html[data-era="1996"] .main-col { padding-bottom: 1.5rem; }
  html[data-era="1996"] .era96-footer hr { margin-top: 0; }
}

/* Tables, per era */
html[data-era="1986"] .comparison-table { font-size: 20px; }
html[data-era="1986"] .comparison-table th { font: 20px "VT323", monospace; letter-spacing: 0.05em; color: #55ffff; border-bottom-color: #55ffff; }
html[data-era="1986"] .comparison-table td { font-family: "VT323", monospace; color: #aaa; border-bottom-color: #333; }
html[data-era="1986"] .comparison-table td:first-child { color: #fff; }
html[data-era="1996"] .comparison-table th { font: bold 15px "Times New Roman", Times, serif; letter-spacing: 0; color: #000; border-bottom: 2px groove #eee; }
html[data-era="1996"] .comparison-table td { font-family: "Times New Roman", Times, serif; color: #000; border-bottom-color: #a8a8a8; }
html[data-era="2006"] .comparison-table th { font: bold 12px "Lucida Grande", Verdana, sans-serif; letter-spacing: 0.04em; color: #1e4f86; }
html[data-era="2006"] .comparison-table td { font-family: "Lucida Grande", Verdana, sans-serif; }
html[data-era="2016"] .comparison-table th { font: 600 12px -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif; letter-spacing: 0.08em; color: rgba(0, 0, 0, 0.54); }
html[data-era="2016"] .comparison-table td { font-family: Georgia, Cambria, "Times New Roman", serif; }

/* 1996 lists: wrapped titles hang under the title, not under the date */
html[data-era="1996"] .archive-year ul { list-style: none; padding-left: 0.3em; }
html[data-era="1996"] .archive-year li { display: flex; flex-direction: row; align-items: baseline; gap: 0.45em; }
html[data-era="1996"] .archive-year li::before { content: "\2022"; flex-shrink: 0; }
html[data-era="1996"] .archive-year time { flex-shrink: 0; margin-right: 0; }

/* ───────────────────────────────────────
   1969 — secret era: an ARPANET teletype printout
   On green-bar tractor-feed paper, 72 columns, all caps.
   Reached by turning the dial past 2026 (or back past 1986), or typing LOGIN in 1986.
   ─────────────────────────────────────── */

.era-dial .era-secret { display: none; }
html[data-era="1969"] .era-dial .era-secret { display: inline-block; }
html[data-era="1969"] .era-1969 { display: block; }
html[data-era="1969"] .era-needle { transform: rotate(-125deg); }

html[data-era="1969"] {
  --bg: #f6f5ec;
  --ink: #26241f;
  --muted: #4d4a42;
  --hairline: #9fb79a;
  --hairline-2: #c9d9c4;
  --copper: #26241f;
  --brass: #000;
  --panel: transparent;
  --col: calc(72ch + 7rem);
  --line: 24px;
  background: #f6f5ec;
}

html[data-era="1969"] body {
  font-family: "Courier Prime", "Courier New", Courier, monospace;
  font-size: 16px;
  line-height: var(--line);
  text-transform: uppercase;
  color: #26241f;
  text-shadow: 0 0 0.6px rgba(38, 36, 31, 0.55);
  background:
    /* tractor-feed holes, both edges */
    radial-gradient(circle at center, #8d8a80 0 4px, #6f6c63 4.5px, transparent 5.5px) left 8px top 6px / 24px 24px repeat-y,
    radial-gradient(circle at center, #8d8a80 0 4px, #6f6c63 4.5px, transparent 5.5px) right 8px top 6px / 24px 24px repeat-y,
    /* perforation lines beside the hole strips */
    linear-gradient(to right, transparent 39px, rgba(0, 0, 0, 0.12) 39px 40px, transparent 40px) left top / 100% 8px repeat-y,
    linear-gradient(to left, transparent 39px, rgba(0, 0, 0, 0.12) 39px 40px, transparent 40px) left top / 100% 8px repeat-y,
    /* green bars: three printed lines white, three green */
    repeating-linear-gradient(#f6f5ec 0 72px, #dfeedb 72px 144px);
}
html[data-era="1969"] body::before { display: none; }
html[data-era="1969"] ::selection { background: #bcd8b5; color: #000; }

html[data-era="1969"] .site-header,
html[data-era="1969"] .main-col,
html[data-era="1969"] .era69-log,
html[data-era="1969"] .site-footer { padding-left: 3.5rem; padding-right: 3.5rem; }

html[data-era="1969"] a,
html[data-era="1969"] .post-body a,
html[data-era="1969"] .archive-year a,
html[data-era="1969"] .post-nav-item a {
  color: inherit;
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
  border-bottom: none;
  text-shadow: inherit;
  transition: none;
}
html[data-era="1969"] a:hover,
html[data-era="1969"] .archive-year a:hover { background: #26241f; color: #f6f5ec; text-shadow: none; text-decoration: none; }

/* Header: a job banner */
html[data-era="1969"] .header-plate { border: none; background: none; padding: var(--line) 0 0; text-align: left; }
html[data-era="1969"] .site-title {
  font-family: inherit;
  font-size: 32px;
  font-weight: 700;
  letter-spacing: 0.35em;
  line-height: calc(var(--line) * 2);
  color: #26241f;
}
html[data-era="1969"] .site-title { text-decoration: none; }
html[data-era="1969"] .site-title:hover { background: none; color: #000; text-decoration: underline; }
html[data-era="1969"] .site-subtitle { font-family: inherit; font-style: normal; font-size: 16px; letter-spacing: 0; color: #26241f; margin: 0; }
html[data-era="1969"] .site-nav { justify-content: flex-start; flex-wrap: wrap; gap: 0 2ch; padding: var(--line) 0 0; }
html[data-era="1969"] .site-nav a { font-family: inherit; font-size: 16px; letter-spacing: 0; color: #26241f; padding: 0; border-radius: 0; }
html[data-era="1969"] .site-nav a:hover { background: #26241f; color: #f6f5ec; box-shadow: none; }
html[data-era="1969"] .nav-dot { display: none; }

/* The first ARPANET message */
html[data-era="1969"] .era69-log { max-width: var(--col); margin: var(--line) auto 0; }
.era69-log p { margin: 0; }
.era69-typed span { display: inline-block; overflow: hidden; vertical-align: bottom; white-space: nowrap; }
.era69-crash { font-weight: 700; }
html.era69-intro .era69-typed span { width: 0; animation: era69-type 0.9s steps(2, end) 0.4s forwards; }
html.era69-intro .era69-typed::after { content: "\2588"; animation: era69-blink 0.5s steps(1) 1.3s 3, era69-hide 0s linear 2.8s forwards; }
@keyframes era69-hide { to { visibility: hidden; } }
html.era69-intro .era69-crash { visibility: hidden; animation: era69-show 0s linear 2.8s forwards; }
@keyframes era69-type { to { width: 2ch; } }
@keyframes era69-blink { 50% { visibility: hidden; } }
@keyframes era69-show { to { visibility: visible; } }

/* The page prints, line by line */
html[data-era="1969"] .main-col { animation: era69-print 0.7s steps(14, end) both; }
html.era69-intro .main-col { animation: era69-print 1.8s steps(24, end) 3s both; }
@keyframes era69-print { from { clip-path: inset(0 0 100% 0); } to { clip-path: inset(0 0 0 0); } }

/* Lists and headings */
html[data-era="1969"] .archive-year li {
  gap: 2ch;
  padding: 0;
  border: none;
  font-size: 16px;
  line-height: var(--line);
}
html[data-era="1969"] .archive-year time { width: 10ch; font-family: inherit; font-size: 16px; letter-spacing: 0; color: #26241f; }
html[data-era="1969"] .archive-year h2,
html[data-era="1969"] .section-heading,
html[data-era="1969"] .page-body h1,
html[data-era="1969"] .archive-body h1 {
  font-family: inherit;
  font-size: 16px;
  font-weight: 700;
  letter-spacing: 0.2em;
  color: #26241f;
  border-bottom: none;
  margin: var(--line) 0 0;
  padding: 0;
}
html[data-era="1969"] .home-more { font: 16px "Courier Prime", "Courier New", monospace; letter-spacing: 0; margin-top: var(--line); padding-top: 0; }

/* Posts */
html[data-era="1969"] .post-header { border-bottom: none; margin-bottom: var(--line); padding-bottom: 0; }
html[data-era="1969"] .post-date { font-family: inherit; font-size: 16px; letter-spacing: 0; color: #26241f; margin: 0; }
html[data-era="1969"] .post-title {
  font-family: inherit;
  font-size: 16px;
  font-weight: 700;
  letter-spacing: 0.08em;
  line-height: var(--line);
  color: #26241f;
}
html[data-era="1969"] .post-title::after { content: ""; display: block; height: 0; border-bottom: 2px dashed #26241f; margin-top: 2px; width: 100%; }
html[data-era="1969"] .post-body { font-size: 16px; line-height: var(--line); overflow-wrap: break-word; }
html[data-era="1969"] .post-body p { margin-bottom: var(--line); }
html[data-era="1969"] .post-body h2,
html[data-era="1969"] .post-body h3 { font-family: inherit; font-size: 16px; font-weight: 700; letter-spacing: 0.08em; color: #26241f; margin: var(--line) 0; line-height: var(--line); }
html[data-era="1969"] .post-body blockquote {
  margin: var(--line) 0;
  padding: 0 0 0 3ch;
  border-left: 2px dashed #26241f;
  background: none;
  font-style: normal;
  color: #26241f;
}
html[data-era="1969"] .post-body img {
  border: none;
  border-radius: 0;
  filter: grayscale(1) contrast(1.35) brightness(1.05);
  mix-blend-mode: multiply;
}
html[data-era="1969"] .post-body pre,
html[data-era="1969"] .post-body code { font-family: inherit; background: none; border: none; color: #26241f; text-transform: none; }
html[data-era="1969"] .post-body pre { font-size: 15px; line-height: var(--line); padding: 0; }
html[data-era="1969"] .post-body hr { border-top: 2px dashed #26241f; }
html[data-era="1969"] .post-body::after { content: "*** END OF LISTING ***"; display: block; margin-top: var(--line); font-weight: 700; }
html[data-era="1969"] .comparison-table th,
html[data-era="1969"] .comparison-table td { font-family: inherit; font-size: 15px; letter-spacing: 0; color: #26241f; border-bottom: 1px dashed #26241f; }

html[data-era="1969"] .instrument-divider { display: block; overflow: hidden; white-space: nowrap; margin: var(--line) 0; }
html[data-era="1969"] .instrument-divider::before {
  content: "- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -";
  display: block; height: auto; background: none;
}
html[data-era="1969"] .instrument-divider > *,
html[data-era="1969"] .instrument-divider::after { display: none; }
html[data-era="1969"] .nav-label { font-family: inherit; font-size: 16px; letter-spacing: 0; color: #26241f; }
html[data-era="1969"] .post-nav-item { font-size: 16px; }

/* 1969 dial: a beige Teletype control */
html[data-era="1969"] .era-dial {
  background: #e4dcc3;
  border: 2px solid #8a826c;
  border-radius: 4px;
  box-shadow: 0 2px 0 #8a826c;
  -webkit-backdrop-filter: none;
  backdrop-filter: none;
  font: 700 13px "Courier Prime", "Courier New", monospace;
}
html[data-era="1969"] .era-dial button { color: #3b372c; border-radius: 2px; letter-spacing: 0.05em; }
html[data-era="1969"] .era-dial button[aria-checked="true"] { background: #3b372c; color: #e4dcc3; }
html[data-era="1969"] .era-dial .era-knob { background: radial-gradient(circle at 35% 30%, #5a5650, #1e1c19 70%); box-shadow: 0 1px 2px rgba(0, 0, 0, 0.5); }
html[data-era="1969"] .era-dial .era-needle { background: #e4dcc3; }

@media (max-width: 768px) {
  html[data-era="1969"] body { font-size: 15px; }
  html[data-era="1969"] .site-header,
  html[data-era="1969"] .main-col,
  html[data-era="1969"] .era69-log,
  html[data-era="1969"] .site-footer { padding-left: 2.6rem; padding-right: 2.6rem; }
  html[data-era="1969"] .site-title { font-size: 24px; letter-spacing: 0.25em; }
  html[data-era="1969"] .archive-year li::before { display: none; }
  html[data-era="1969"] .post-body table { width: 100%; table-layout: fixed; }
  html[data-era="1969"] .post-body th,
  html[data-era="1969"] .post-body td { font-size: 12px; line-height: 18px; overflow-wrap: anywhere; padding-left: 0; padding-right: 6px; }
}

@media (prefers-reduced-motion: reduce) {
  html[data-era="1969"] .main-col,
  html.era69-intro .main-col,
  html.era69-intro .era69-typed span,
  html.era69-intro .era69-typed::after,
  html.era69-intro .era69-crash { animation: none !important; width: auto; visibility: visible; clip-path: none; }
}