/* ============================================================
   senescenciacelular.com — global stylesheet
   "Biotech journal meets fashion magazine"
   ============================================================ */

:root {
  /* Color system — deep biology */
  --bg-0: #060812;
  --bg-1: #0b0f1c;
  --bg-2: #121728;
  --bg-3: #1b2236;
  --ink-0: #f4f1ea;
  --ink-1: #d8d2c4;
  --ink-2: #a3abbd;
  --ink-3: #7c8aa3;
  --rule: rgba(244, 241, 234, 0.08);

  /* Phosphorescence */
  --glow: #7af7c8;          /* mitochondrial green */
  --glow-2: #6ee0ff;        /* telomere cyan */
  --glow-3: #ffb38a;        /* estrogen warm */
  --magenta: #ff7adf;       /* SASP marker */
  --gold: #f5d28a;          /* citation */

  /* Typography */
  --font-display: "Fraunces", "Bodoni Moderno", "Playfair Display", "Didot", "GFS Didot", "Iowan Old Style", Georgia, serif;
  --font-body: "Inter", "IBM Plex Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, SFMono-Regular, "SF Mono", Menlo, monospace;

  /* Rhythm */
  --measure: 68ch;
  --gutter: clamp(1.25rem, 3vw, 2.5rem);
  --pad-section: clamp(4rem, 9vw, 9rem);

  /* Motion */
  --ease: cubic-bezier(.2, .8, .2, 1);
}

@media (prefers-reduced-motion: reduce) {
  *,*::before,*::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

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

html {
  background: var(--bg-0);
  color: var(--ink-1);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100dvh;
  background:
    radial-gradient(1200px 800px at 80% -10%, rgba(110, 224, 255, 0.10), transparent 60%),
    radial-gradient(900px 700px at 10% 30%, rgba(122, 247, 200, 0.07), transparent 65%),
    radial-gradient(1400px 900px at 50% 120%, rgba(255, 122, 223, 0.06), transparent 70%),
    linear-gradient(180deg, #060812 0%, #04050d 100%);
  background-attachment: fixed;
  overflow-x: clip;
}

img, video, svg { max-width: 100%; height: auto; display: block; }
svg { fill: currentColor; }

/* Skip-link injected on every page by the Worker */
.skip-link {
  position: absolute;
  top: -100px;
  left: 1rem;
  z-index: 9999;
  padding: .75rem 1.25rem;
  background: var(--glow);
  color: var(--bg-0);
  font-weight: 600;
  border-radius: 8px;
  text-decoration: none;
  background-image: none;
  transition: top .2s var(--ease);
}
.skip-link:focus { top: 1rem; color: var(--bg-0); }

a {
  color: var(--ink-0);
  text-decoration: none;
  background-image: linear-gradient(currentColor, currentColor);
  background-size: 100% 1px;
  background-repeat: no-repeat;
  background-position: 0 100%;
  transition: color .25s var(--ease), background-size .35s var(--ease);
}
a:hover, a:focus-visible { color: var(--glow); background-size: 100% 2px; }

::selection { background: var(--glow); color: var(--bg-0); }

:focus-visible { outline: 2px solid var(--glow); outline-offset: 3px; border-radius: 4px; }

/* Typography */
h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 350;
  font-style: normal;
  color: var(--ink-0);
  letter-spacing: -0.015em;
  line-height: 1.05;
  margin: 0 0 .6em;
  font-variation-settings: "opsz" 144, "SOFT" 50;
}
h1 { font-size: clamp(2.4rem, 6vw, 5.5rem); letter-spacing: -0.025em; }
h2 { font-size: clamp(1.85rem, 4vw, 3.25rem); }
h3 { font-size: clamp(1.35rem, 2.4vw, 1.9rem); }
h4 { font-size: 1.1rem; letter-spacing: .04em; text-transform: uppercase; color: var(--ink-2); font-family: var(--font-body); font-weight: 600; }

p { margin: 0 0 1.2em; max-width: var(--measure); }
strong { color: var(--ink-0); font-weight: 600; }
em { color: var(--ink-0); }

blockquote {
  margin: 2.5rem 0;
  padding: 1.25rem 0 1.25rem 1.5rem;
  border-left: 2px solid var(--glow);
  font-family: var(--font-display);
  font-size: clamp(1.25rem, 2.2vw, 1.65rem);
  line-height: 1.3;
  color: var(--ink-0);
  font-style: italic;
}

code, pre, kbd { font-family: var(--font-mono); font-size: .92em; }
code { background: var(--bg-2); padding: 0.15em 0.4em; border-radius: 4px; color: var(--glow); }

hr {
  border: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--rule) 20%, var(--rule) 80%, transparent);
  margin: 4rem 0;
}

/* Layout primitives */
.wrap {
  width: 100%;
  max-width: 1320px;
  margin: 0 auto;
  padding-inline: var(--gutter);
}
.wrap--narrow { max-width: 880px; }
.wrap--reading { max-width: 720px; }

section { padding-block: var(--pad-section); position: relative; }

/* ----------- Header / nav ----------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  backdrop-filter: blur(18px) saturate(1.2);
  -webkit-backdrop-filter: blur(18px) saturate(1.2);
  background: linear-gradient(180deg, rgba(6,8,18,.85), rgba(6,8,18,.55));
  border-bottom: 1px solid var(--rule);
}
.site-header__inner {
  display: flex; align-items: center; justify-content: space-between;
  height: 68px;
  gap: 2rem;
}
.brand {
  display: flex; align-items: center; gap: .65rem;
  font-family: var(--font-display);
  font-size: 1.15rem;
  letter-spacing: .02em;
  color: var(--ink-0);
  background: none;
}
.brand:hover { color: var(--ink-0); }
.brand__mark {
  width: 28px; height: 28px;
  display: inline-grid; place-items: center;
  border-radius: 50%;
  background: radial-gradient(circle at 30% 30%, var(--glow), transparent 70%),
              radial-gradient(circle at 70% 70%, var(--glow-2), transparent 60%);
  box-shadow: 0 0 30px rgba(122,247,200,.4), inset 0 0 8px rgba(0,0,0,.4);
}
.brand__name { font-weight: 350; }
.brand__name b { color: var(--glow); font-weight: 350; }

.nav { display: flex; gap: 1.5rem; align-items: center; font-size: .95rem; }
.nav a { background: none; color: var(--ink-2); font-weight: 500; letter-spacing: .01em; }
.nav a:hover { color: var(--ink-0); background: none; }
.nav__cta {
  padding: .55rem 1rem;
  border: 1px solid var(--glow);
  border-radius: 999px;
  color: var(--glow) !important;
}
.nav__cta:hover { background: var(--glow); color: var(--bg-0) !important; }

@media (max-width: 760px) {
  .nav__item--hide-sm { display: none; }
}

/* ----------- Hero ----------- */
.hero {
  position: relative;
  padding-block: clamp(5rem, 14vw, 11rem);
  overflow: clip;
}
.hero__bg {
  position: absolute; inset: 0;
  z-index: -1;
  opacity: .9;
}
.hero__bg canvas { width: 100%; height: 100%; }

.hero__eyebrow {
  display: inline-flex; align-items: center; gap: .65rem;
  font-family: var(--font-mono); font-size: .78rem;
  text-transform: uppercase; letter-spacing: .25em;
  color: var(--glow);
  padding: .35rem .8rem;
  border: 1px solid var(--rule);
  border-radius: 999px;
  background: rgba(122,247,200,.04);
}
.hero__eyebrow::before {
  content: ""; width: 6px; height: 6px; border-radius: 50%;
  background: var(--glow);
  box-shadow: 0 0 14px var(--glow);
  animation: pulse 2.4s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { opacity: .4; transform: scale(.8); }
  50% { opacity: 1; transform: scale(1.2); }
}

.hero h1 {
  margin-top: 1.5rem;
  max-width: 18ch;
}
.hero h1 .glow { color: var(--glow); font-style: italic; }
.hero h1 .estro { color: var(--glow-3); font-style: italic; }

.hero__lede {
  font-family: var(--font-display);
  font-size: clamp(1.15rem, 1.8vw, 1.5rem);
  line-height: 1.45;
  color: var(--ink-1);
  max-width: 56ch;
  margin-top: 1.5rem;
}

.hero__meta {
  margin-top: 2.5rem;
  display: flex; flex-wrap: wrap; gap: 1rem;
  font-size: .85rem;
  color: var(--ink-3);
  font-family: var(--font-mono);
  letter-spacing: .08em;
  text-transform: uppercase;
}
.hero__meta span { display: inline-flex; align-items: center; gap: .5rem; }
.hero__meta span::before { content: ""; width: 4px; height: 4px; background: var(--ink-3); border-radius: 50%; }

.hero__cta {
  margin-top: 3rem;
  display: flex; flex-wrap: wrap; gap: 1rem;
}

.btn {
  display: inline-flex; align-items: center; gap: .6rem;
  padding: .9rem 1.4rem;
  background: var(--ink-0);
  color: var(--bg-0);
  border-radius: 999px;
  font-weight: 600;
  font-size: .95rem;
  letter-spacing: -.005em;
  transition: transform .25s var(--ease), background .25s var(--ease), box-shadow .25s var(--ease);
  background-image: none;
}
.btn:hover { transform: translateY(-2px); background: var(--glow); color: var(--bg-0); box-shadow: 0 12px 30px -10px var(--glow); }
.btn--ghost { background: transparent; color: var(--ink-0); border: 1px solid var(--rule); }
.btn--ghost:hover { background: rgba(122,247,200,.08); color: var(--glow); border-color: var(--glow); }

/* Sci-marquee */
.marquee {
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
  padding-block: 1rem;
  overflow: hidden;
  background: rgba(255,255,255,0.012);
}
.marquee__track {
  display: flex;
  gap: 3rem;
  white-space: nowrap;
  animation: scroll 50s linear infinite;
  font-family: var(--font-display);
  font-size: clamp(1.1rem, 2vw, 1.4rem);
  color: var(--ink-2);
  font-style: italic;
}
.marquee__track span { display: inline-flex; align-items: center; gap: 3rem; }
.marquee__track span::after { content: "✦"; color: var(--glow); }
@keyframes scroll {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

/* Section headers */
.section-head { display: flex; flex-wrap: wrap; align-items: end; justify-content: space-between; gap: 2rem; margin-bottom: 3.5rem; }
.section-head__label {
  font-family: var(--font-mono);
  font-size: .8rem;
  text-transform: uppercase;
  letter-spacing: .25em;
  color: var(--glow);
  display: block;
  margin-bottom: .9rem;
}
.section-head h2 { max-width: 22ch; }
.section-head p { color: var(--ink-2); max-width: 42ch; }

/* Pillar grid */
.pillars {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1px;
  background: var(--rule);
  border: 1px solid var(--rule);
  border-radius: 24px;
  overflow: hidden;
}
.pillar {
  background: var(--bg-1);
  padding: 2.5rem 2rem;
  display: flex; flex-direction: column;
  gap: 1rem;
  position: relative;
  transition: background .3s var(--ease);
}
.pillar:hover { background: var(--bg-2); }
.pillar__num { font-family: var(--font-mono); font-size: .8rem; color: var(--ink-3); letter-spacing: .2em; }
.pillar__icon { width: 56px; height: 56px; color: var(--glow); margin-bottom: .5rem; }
.pillar h3 { font-size: 1.5rem; margin: 0; color: var(--ink-0); }
.pillar p { color: var(--ink-2); font-size: .95rem; }
.pillar__link {
  margin-top: auto;
  font-family: var(--font-mono);
  font-size: .78rem;
  text-transform: uppercase;
  letter-spacing: .2em;
  color: var(--ink-1);
  display: inline-flex; align-items: center; gap: .5rem;
  background: none;
}
.pillar__link::after { content: "→"; transition: transform .25s var(--ease); }
.pillar:hover .pillar__link::after { transform: translateX(6px); }

/* Featured / editorial card */
.feature-card {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 2rem;
  background: linear-gradient(135deg, var(--bg-1), var(--bg-2));
  border: 1px solid var(--rule);
  border-radius: 24px;
  overflow: hidden;
  position: relative;
}
@media (max-width: 880px) { .feature-card { grid-template-columns: 1fr; } }
.feature-card__body { padding: clamp(2rem, 4vw, 3.5rem); display: flex; flex-direction: column; justify-content: center; }
.feature-card__visual {
  position: relative;
  background: radial-gradient(circle at 30% 20%, rgba(122,247,200,.18), transparent 60%),
              radial-gradient(circle at 70% 80%, rgba(255,179,138,.15), transparent 60%);
  min-height: 360px;
  display: grid; place-items: center;
  overflow: hidden;
}
.feature-card__visual svg { width: 80%; height: 80%; filter: drop-shadow(0 8px 30px rgba(122,247,200,.3)); }
.kicker {
  font-family: var(--font-mono); font-size: .78rem;
  text-transform: uppercase; letter-spacing: .25em;
  color: var(--gold); margin-bottom: 1rem; display: inline-block;
}

/* Video grid (YouTube facades) */
.video-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 1.5rem;
}
.lite-youtube {
  position: relative;
  aspect-ratio: 16/9;
  border-radius: 16px;
  overflow: hidden;
  background-size: cover;
  background-position: center;
  background-color: #000;
  cursor: pointer;
  border: 1px solid var(--rule);
  transition: transform .35s var(--ease), border-color .35s var(--ease);
}
.lite-youtube:hover { transform: translateY(-4px); border-color: var(--glow); }
.lite-youtube::before {
  content: "";
  position: absolute; inset: 0;
  background: linear-gradient(180deg, transparent 50%, rgba(0,0,0,.85));
}
.lite-youtube__title {
  position: absolute; left: 1.25rem; right: 1.25rem; bottom: 1.25rem;
  color: #fff;
  font-family: var(--font-display);
  font-size: 1.15rem;
  line-height: 1.25;
  z-index: 2;
}
.lite-youtube__author {
  position: absolute; left: 1.25rem; top: 1.25rem;
  font-family: var(--font-mono); font-size: .72rem;
  text-transform: uppercase; letter-spacing: .2em;
  color: var(--glow);
  z-index: 2;
  padding: .35rem .7rem;
  border-radius: 999px;
  background: rgba(0,0,0,.55);
  backdrop-filter: blur(8px);
}
.lite-youtube__play {
  position: absolute; top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  width: 72px; height: 72px;
  border-radius: 50%;
  background: rgba(255,255,255,.95);
  display: grid; place-items: center;
  z-index: 2;
  transition: transform .25s var(--ease), background .25s var(--ease);
}
.lite-youtube:hover .lite-youtube__play { transform: translate(-50%,-50%) scale(1.08); background: var(--glow); }
.lite-youtube__play::after {
  content: "";
  width: 0; height: 0;
  border-left: 18px solid #000;
  border-top: 11px solid transparent;
  border-bottom: 11px solid transparent;
  margin-left: 4px;
}
.lite-youtube iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; z-index: 3; }

/* FAQ accordion */
.faq { display: grid; gap: 1px; background: var(--rule); border: 1px solid var(--rule); border-radius: 16px; overflow: hidden; }
.faq details {
  background: var(--bg-1);
  padding: 0;
}
.faq summary {
  list-style: none;
  cursor: pointer;
  padding: 1.5rem 1.75rem;
  font-family: var(--font-display);
  font-size: 1.2rem;
  color: var(--ink-0);
  display: flex; align-items: center; justify-content: space-between; gap: 1.5rem;
  transition: background .2s var(--ease);
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: "+";
  font-family: var(--font-mono);
  color: var(--glow);
  font-size: 1.4rem;
  transition: transform .3s var(--ease);
}
.faq details[open] summary { background: var(--bg-2); }
.faq details[open] summary::after { transform: rotate(45deg); }
.faq__body { padding: 0 1.75rem 1.75rem; color: var(--ink-1); }
.faq__body p { max-width: none; }

/* Source link / citation */
.cite {
  display: inline-flex; align-items: center; gap: .3rem;
  font-family: var(--font-mono); font-size: .72em;
  color: var(--gold);
  vertical-align: super;
  background: none;
  padding: 0 .15em;
}
.cite:hover { color: var(--glow); }
.sources {
  list-style: none; padding: 0; margin: 3rem 0;
  display: grid; gap: 1px;
  background: var(--rule);
  border: 1px solid var(--rule);
  border-radius: 12px;
  overflow: hidden;
  font-size: .92rem;
}
.sources li {
  background: var(--bg-1);
  padding: 1rem 1.25rem;
  display: grid;
  grid-template-columns: 2.5rem 1fr;
  gap: 1rem;
  align-items: baseline;
}
.sources li b { color: var(--gold); font-family: var(--font-mono); font-weight: 500; font-size: .8rem; }
.sources li a { color: var(--ink-1); background-size: 0 1px; }
.sources li a:hover { color: var(--glow); background-size: 100% 1px; }

/* Article body */
.article-body {
  font-size: 1.07rem;
  line-height: 1.75;
}
.article-body h2 { margin-top: 3.5rem; }
.article-body h3 { margin-top: 2.5rem; color: var(--ink-0); }
.article-body p, .article-body li, .article-body blockquote { max-width: var(--measure); }
.article-body ul { padding-left: 1.2rem; color: var(--ink-1); }
.article-body ul li { margin-bottom: .5rem; }
.article-body ul li::marker { color: var(--glow); }

.dropcap::first-letter {
  font-family: var(--font-display);
  font-size: 4.5em;
  float: left;
  line-height: .85;
  padding-right: .1em;
  padding-top: .05em;
  color: var(--glow);
  font-style: italic;
}

/* Pull quote */
.pullquote {
  margin: 4rem -2rem;
  padding: 3rem 2rem;
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
  font-family: var(--font-display);
  font-style: italic;
  font-size: clamp(1.4rem, 2.6vw, 2.1rem);
  line-height: 1.25;
  color: var(--ink-0);
  text-align: center;
  max-width: none;
}
.pullquote::before { content: "“"; color: var(--glow); font-size: 2em; line-height: 0; vertical-align: -.4em; margin-right: .2em; }
.pullquote::after { content: "”"; color: var(--glow); font-size: 2em; line-height: 0; vertical-align: -.4em; margin-left: .1em; }

/* Stat strip */
.stat-strip {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1px;
  background: var(--rule);
  border: 1px solid var(--rule);
  border-radius: 16px;
  overflow: hidden;
}
.stat { background: var(--bg-1); padding: 2rem 1.5rem; }
.stat__num {
  font-family: var(--font-display); font-size: clamp(2.4rem, 4vw, 3.4rem);
  color: var(--glow); line-height: 1; letter-spacing: -.02em;
}
.stat__label { font-size: .9rem; color: var(--ink-2); margin-top: .8rem; max-width: 30ch; }

/* Footer */
.site-footer {
  border-top: 1px solid var(--rule);
  padding-block: 5rem 3rem;
  margin-top: 6rem;
  background: linear-gradient(180deg, transparent, rgba(0,0,0,.4));
}
.site-footer__grid {
  display: grid;
  grid-template-columns: 1.5fr repeat(3, 1fr);
  gap: 3rem;
}
@media (max-width: 880px) { .site-footer__grid { grid-template-columns: 1fr 1fr; } }
.site-footer h4 { color: var(--ink-1); margin-bottom: 1.2rem; }
.site-footer ul { list-style: none; padding: 0; margin: 0; display: grid; gap: .65rem; }
.site-footer a { color: var(--ink-2); background-size: 0 1px; font-size: .92rem; }
.site-footer a:hover { color: var(--ink-0); background-size: 100% 1px; }
.site-footer__legal { margin-top: 4rem; padding-top: 2rem; border-top: 1px solid var(--rule); display: flex; justify-content: space-between; flex-wrap: wrap; gap: 1rem; color: var(--ink-3); font-size: .82rem; font-family: var(--font-mono); }

/* Coming-soon page */
.coming-soon {
  min-height: 100dvh;
  display: grid; place-items: center;
  text-align: center;
  padding: var(--gutter);
}
.coming-soon__inner { max-width: 640px; }
.coming-soon h1 { font-size: clamp(2rem, 5vw, 3.6rem); margin-bottom: 1rem; }
.coming-soon p { margin: 0 auto 1.2em; }
.coming-soon__slug { font-family: var(--font-mono); color: var(--glow); font-size: .9rem; }

/* Cell illustration helpers */
.cell-bloom {
  position: relative;
  width: 100%;
  aspect-ratio: 1 / 1;
  max-width: 520px;
  margin-inline: auto;
}
.cell-bloom svg { width: 100%; height: 100%; }
.cell-orbit {
  animation: orbit 60s linear infinite;
  transform-origin: 50% 50%;
}
@keyframes orbit { to { transform: rotate(360deg); } }

/* Scroll-triggered fade-in for sections (intersection observer) */
.reveal { opacity: 0; transform: translateY(20px); transition: opacity .9s var(--ease), transform .9s var(--ease); }
.reveal.in { opacity: 1; transform: translateY(0); }

/* Tag chips */
.tag-row { display: flex; flex-wrap: wrap; gap: .5rem; margin: 1rem 0 2rem; }
.tag {
  display: inline-block;
  padding: .3rem .8rem;
  border: 1px solid var(--rule);
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: .72rem;
  text-transform: uppercase;
  letter-spacing: .15em;
  color: var(--ink-2);
  background: none;
}
.tag--glow { color: var(--glow); border-color: var(--glow); }
.tag--gold { color: var(--gold); border-color: rgba(245,210,138,.4); }

/* Two-column reading */
.two-col {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 3rem;
  align-items: start;
}
@media (max-width: 880px) { .two-col { grid-template-columns: 1fr; gap: 1rem; } }
.two-col__side {
  position: sticky; top: 100px;
  font-family: var(--font-mono);
  font-size: .8rem;
  color: var(--ink-3);
  text-transform: uppercase;
  letter-spacing: .2em;
}
.two-col__side ol { padding-left: 1.2rem; margin: 1rem 0 0; display: grid; gap: .6rem; }
.two-col__side a { color: var(--ink-2); background-size: 0 1px; }
.two-col__side a:hover, .two-col__side a.active { color: var(--glow); background-size: 100% 1px; }

/* Author byline */
.byline {
  display: flex; align-items: center; gap: 1rem;
  padding: 1rem 0;
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
  margin: 2.5rem 0;
  font-size: .9rem;
}
.byline__avatar { width: 48px; height: 48px; border-radius: 50%; background: linear-gradient(135deg, var(--glow), var(--glow-3)); }
.byline__name { color: var(--ink-0); font-weight: 600; }
.byline__meta { color: var(--ink-3); font-family: var(--font-mono); font-size: .76rem; letter-spacing: .1em; text-transform: uppercase; }

/* Featured grid – 3up */
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; }
@media (max-width: 880px) { .grid-3 { grid-template-columns: 1fr; } }

/* Article card */
.article-card {
  position: relative;
  display: flex; flex-direction: column;
  background: var(--bg-1);
  border: 1px solid var(--rule);
  border-radius: 20px;
  overflow: hidden;
  transition: transform .3s var(--ease), border-color .3s var(--ease);
}
.article-card:hover { transform: translateY(-4px); border-color: var(--glow); }
.article-card__visual {
  aspect-ratio: 16/10;
  background: linear-gradient(135deg, var(--bg-2), var(--bg-3));
  position: relative;
  overflow: hidden;
}
.article-card__visual svg { position: absolute; inset: 0; width: 100%; height: 100%; opacity: .8; }
.article-card__body { padding: 1.75rem; flex: 1; display: flex; flex-direction: column; }
.article-card h3 { font-size: 1.3rem; margin: .5rem 0; }
.article-card__meta { font-family: var(--font-mono); font-size: .72rem; text-transform: uppercase; letter-spacing: .2em; color: var(--ink-3); }
.article-card a { color: inherit; background: none; }
.article-card a::after { content: ""; position: absolute; inset: 0; }

/* Print-friendly fallbacks */
@media print {
  body { background: white; color: black; }
  .site-header, .site-footer, .lite-youtube { display: none; }
}