/* ============================================================
   Transhuman Singularity — shared stylesheet
   Used by index.html and every page in /posts/
   ============================================================ */

:root{
  --void:#05060d;
  --void-2:#090b16;
  --void-3:#0c1020;
  --line:rgba(120,200,255,.10);
  --line-strong:rgba(120,200,255,.22);
  --cyan:#5fe9ff;
  --gold:#ffc46b;
  --magenta:#ff79c6;
  --text:#d6deef;
  --dim:#7886a6;
  --dimmer:#4a5675;
  --white:#f3f7ff;
  --glow:0 0 32px rgba(95,233,255,.25);
}
*{margin:0;padding:0;box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  background:var(--void);color:var(--text);
  font-family:'Familjen Grotesk',sans-serif;line-height:1.6;
  overflow-x:hidden;position:relative;min-height:100vh;
}
::selection{background:var(--cyan);color:var(--void);}
a{color:inherit;}

/* ---------- atmosphere ---------- */
#stars{position:fixed;inset:0;z-index:0;pointer-events:none;}
.aurora{
  position:fixed;inset:0;z-index:0;pointer-events:none;
  background:
    radial-gradient(60% 50% at 78% -5%, rgba(95,233,255,.12), transparent 60%),
    radial-gradient(50% 45% at 8% 8%, rgba(255,121,198,.07), transparent 60%),
    radial-gradient(70% 60% at 50% 112%, rgba(255,196,107,.08), transparent 55%);
}
.grid-overlay{
  position:fixed;inset:0;z-index:0;pointer-events:none;
  background-image:linear-gradient(var(--line) 1px,transparent 1px),linear-gradient(90deg,var(--line) 1px,transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(circle at 50% 26%,#000 8%,transparent 78%);
  -webkit-mask-image:radial-gradient(circle at 50% 26%,#000 8%,transparent 78%);opacity:.55;
}
.grain{position:fixed;inset:0;z-index:60;pointer-events:none;opacity:.05;mix-blend-mode:overlay;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='3'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");}
.scanlines{position:fixed;inset:0;z-index:59;pointer-events:none;opacity:.35;
  background:repeating-linear-gradient(0deg,transparent 0 3px,rgba(0,0,0,.18) 3px 4px);}

.wrap{position:relative;z-index:2;max-width:1200px;margin:0 auto;padding:0 28px;}

/* ---------- header ---------- */
header{position:sticky;top:0;z-index:50;backdrop-filter:blur(12px);
  background:linear-gradient(180deg,rgba(5,6,13,.92),rgba(5,6,13,.5));border-bottom:1px solid var(--line-strong);}
.hud{display:flex;align-items:center;justify-content:space-between;gap:24px;height:72px;}
.brand{display:flex;align-items:center;gap:14px;text-decoration:none;}
.mark{width:34px;height:34px;flex:none;position:relative;border:1.5px solid var(--cyan);border-radius:50%;
  display:grid;place-items:center;box-shadow:var(--glow);}
.mark::before{content:"";width:9px;height:9px;background:var(--cyan);border-radius:50%;box-shadow:var(--glow);}
.mark::after{content:"";position:absolute;inset:5px;border:1px solid var(--line-strong);border-radius:50%;}
.brand b{font-family:'Chakra Petch',sans-serif;font-weight:700;letter-spacing:.14em;font-size:1.02rem;color:var(--white);}
.brand span span{display:block;font-family:'JetBrains Mono',monospace;font-size:.6rem;letter-spacing:.3em;color:var(--dim);margin-top:2px;}
nav{display:flex;gap:26px;}
nav a{font-family:'JetBrains Mono',monospace;font-size:.72rem;letter-spacing:.14em;text-transform:uppercase;
  color:var(--dim);text-decoration:none;position:relative;padding:4px 0;transition:color .25s;}
nav a::after{content:"";position:absolute;left:0;bottom:0;height:1px;width:0;background:var(--cyan);transition:width .3s;}
nav a:hover{color:var(--white);}nav a:hover::after{width:100%;}

/* ---------- hero masthead ---------- */
.hero{padding:96px 0 64px;position:relative;}
.hero::before{content:"";position:absolute;left:0;right:0;top:0;height:1px;
  background:linear-gradient(90deg,transparent,var(--cyan),transparent);animation:scan 9s linear infinite;opacity:.45;}
@keyframes scan{0%{transform:translateY(0);opacity:0;}10%{opacity:.5;}90%{opacity:.5;}100%{transform:translateY(360px);opacity:0;}}
.eyebrow{font-family:'JetBrains Mono',monospace;font-size:.72rem;letter-spacing:.3em;text-transform:uppercase;
  color:var(--gold);display:inline-flex;align-items:center;gap:12px;}
.eyebrow::before{content:"";width:34px;height:1px;background:var(--gold);}
.hero h1{font-family:'Chakra Petch',sans-serif;font-weight:700;font-size:clamp(2.7rem,7vw,5.6rem);line-height:1;
  letter-spacing:-.01em;color:var(--white);margin:24px 0 22px;max-width:14ch;}
.hero h1 em{font-style:normal;color:var(--cyan);text-shadow:var(--glow);}
.hero .lead{font-size:1.14rem;color:var(--dim);max-width:58ch;}
.hero .byline{margin-top:26px;font-family:'JetBrains Mono',monospace;font-size:.74rem;letter-spacing:.1em;color:var(--dimmer);}
.hero .byline b{color:var(--text);font-weight:500;}

/* ---------- featured ---------- */
.featured{display:grid;grid-template-columns:1.05fr .95fr;gap:0;margin-top:30px;border:1px solid var(--line-strong);
  background:var(--void-2);position:relative;overflow:hidden;}
.featured::before{content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(90% 70% at 100% 0%,rgba(95,233,255,.10),transparent 55%);}
.featured .img{min-height:340px;background-size:cover;background-position:center;position:relative;filter:saturate(1.05);}
.featured .img::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,transparent 40%,rgba(9,11,22,.85) 100%),linear-gradient(0deg,rgba(9,11,22,.6),transparent 50%);}
.featured .body{padding:46px 44px;display:flex;flex-direction:column;justify-content:center;position:relative;z-index:2;}
.featured .tags{display:flex;gap:10px;margin-bottom:20px;flex-wrap:wrap;}
.featured h2{font-family:'Chakra Petch',sans-serif;font-weight:700;font-size:2rem;line-height:1.08;color:var(--white);margin-bottom:16px;}
.featured p{color:var(--dim);font-size:1rem;}
.featured .meta{margin-top:22px;font-family:'JetBrains Mono',monospace;font-size:.72rem;letter-spacing:.08em;color:var(--dimmer);}
.featured .meta b{color:var(--text);font-weight:500;}
.read{display:inline-flex;align-items:center;gap:10px;margin-top:26px;font-family:'JetBrains Mono',monospace;font-size:.76rem;
  letter-spacing:.16em;text-transform:uppercase;color:var(--cyan);text-decoration:none;align-self:flex-start;transition:gap .25s;}
.read:hover{gap:16px;}

.cat{font-family:'JetBrains Mono',monospace;font-size:.64rem;letter-spacing:.18em;text-transform:uppercase;padding:4px 10px;
  border-radius:2px;border:1px solid rgba(255,196,107,.32);color:var(--gold);}
.cat.c2{border-color:rgba(95,233,255,.32);color:var(--cyan);}
.cat.c3{border-color:rgba(255,121,198,.32);color:var(--magenta);}

/* ---------- section head ---------- */
.section-head{display:flex;align-items:baseline;justify-content:space-between;gap:20px;margin:78px 0 32px;flex-wrap:wrap;}
.section-head h3{font-family:'Chakra Petch',sans-serif;font-weight:600;font-size:1.4rem;letter-spacing:.06em;
  color:var(--white);text-transform:uppercase;}
.section-head .tag{font-family:'JetBrains Mono',monospace;font-size:.7rem;letter-spacing:.16em;color:var(--dim);}

/* ---------- grid ---------- */
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line);border:1px solid var(--line);}
.card{background:var(--void-2);text-decoration:none;color:inherit;display:flex;flex-direction:column;
  position:relative;overflow:hidden;transition:background .3s;}
.card:hover{background:var(--void-3);}
.card .cover{height:158px;background-size:cover;background-position:center;position:relative;
  filter:grayscale(.35) saturate(1.1) brightness(.85);transition:filter .4s,transform .5s;}
.card:hover .cover{filter:grayscale(0) saturate(1.15) brightness(1);transform:scale(1.04);}
.card .inner{padding:22px 24px 26px;display:flex;flex-direction:column;flex:1;}
.card .inner .cat{align-self:flex-start;margin-bottom:14px;}
.card h4{font-family:'Chakra Petch',sans-serif;font-weight:600;font-size:1.22rem;line-height:1.18;color:var(--white);
  margin-bottom:11px;transition:color .25s;}
.card:hover h4{color:var(--cyan);}
.card p{font-size:.92rem;color:var(--dim);flex:1;}
.card .foot{display:flex;justify-content:space-between;align-items:center;margin-top:20px;padding-top:14px;
  border-top:1px solid var(--line);font-family:'JetBrains Mono',monospace;font-size:.68rem;letter-spacing:.05em;color:var(--dimmer);}
.card .foot .go{color:var(--cyan);}

/* stacked text-only card (two entries, no cover) */
.card.double{background:var(--void-2);}
.card.double:hover{background:var(--void-2);}
.card.double .entry{display:flex;flex-direction:column;flex:1;padding:24px 24px 22px;text-decoration:none;color:inherit;
  position:relative;transition:background .3s;}
.card.double .entry + .entry{border-top:1px solid var(--line);}
.card.double .entry::before{content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(120% 80% at 100% 0%,rgba(95,233,255,.12),transparent 55%);opacity:0;transition:opacity .35s;}
.card.double .entry:hover{background:var(--void-3);}
.card.double .entry:hover::before{opacity:1;}
.card.double .entry .cat{align-self:flex-start;margin-bottom:13px;}
.card.double .entry h4{font-family:'Chakra Petch',sans-serif;font-weight:600;font-size:1.08rem;line-height:1.2;
  color:var(--white);margin-bottom:9px;transition:color .25s;position:relative;}
.card.double .entry:hover h4{color:var(--cyan);}
.card.double .entry p{font-size:.86rem;color:var(--dim);flex:1;position:relative;}
.card.double .entry .foot{display:flex;justify-content:space-between;align-items:center;margin-top:16px;
  font-family:'JetBrains Mono',monospace;font-size:.66rem;letter-spacing:.05em;color:var(--dimmer);position:relative;}
.card.double .entry .foot .go{color:var(--cyan);}
.card.double .entry h4 a{color:inherit;text-decoration:none;}
.card.double .entry .foot a.go{text-decoration:none;}
.card.double .entry .ver{color:var(--cyan);text-decoration:none;border-bottom:1px solid transparent;transition:border-color .2s;}
.card.double .entry .ver:hover{border-bottom-color:var(--cyan);}

/* embedded video card (spans the two columns beside the text card) */
.card.video{grid-column:span 2;background:var(--void-2);overflow:hidden;display:flex;flex-direction:column;}
.video-embed{position:relative;width:100%;aspect-ratio:16/9;background:#000;border-bottom:1px solid var(--line);}
.video-embed iframe{position:absolute;inset:0;width:100%;height:100%;border:0;display:block;}
.card.video .inner{padding:22px 24px 26px;display:flex;flex-direction:column;flex:1;}
.card.video .inner .cat{align-self:flex-start;margin-bottom:14px;}
.card.video h4{font-family:'Chakra Petch',sans-serif;font-weight:600;font-size:1.22rem;line-height:1.18;
  color:var(--white);margin-bottom:11px;transition:color .25s;}
.card.video:hover h4{color:var(--cyan);}
.card.video p{font-size:.92rem;color:var(--dim);flex:1;}
.card.video .foot{display:flex;justify-content:space-between;align-items:center;margin-top:20px;padding-top:14px;
  border-top:1px solid var(--line);font-family:'JetBrains Mono',monospace;font-size:.68rem;letter-spacing:.05em;color:var(--dimmer);}
.card.video .foot .go{color:var(--cyan);text-decoration:none;}

/* ---------- about strip ---------- */
.about{display:grid;grid-template-columns:auto 1fr;gap:34px;align-items:center;margin-top:78px;
  border:1px solid var(--line);background:linear-gradient(180deg,var(--void-2),transparent);padding:38px 40px;}
.about .avatar{width:104px;height:104px;border-radius:50%;background-size:cover;background-position:center;
  border:1.5px solid var(--line-strong);box-shadow:var(--glow);background-color:var(--void-3);}
.about .label{font-family:'JetBrains Mono',monospace;font-size:.68rem;letter-spacing:.24em;text-transform:uppercase;color:var(--gold);}
.about h3{font-family:'Chakra Petch',sans-serif;font-weight:600;font-size:1.45rem;color:var(--white);margin:8px 0 10px;}
.about p{color:var(--dim);max-width:64ch;font-size:.96rem;}

/* ---------- footer ---------- */
footer{margin-top:90px;border-top:1px solid var(--line-strong);background:linear-gradient(180deg,transparent,rgba(9,11,22,.6));}
.foot-grid{display:flex;justify-content:space-between;align-items:flex-start;gap:40px;padding:52px 0;flex-wrap:wrap;}
.foot-grid .tagline{max-width:32ch;color:var(--dim);font-size:.94rem;margin-top:16px;}
.foot-links{display:flex;gap:50px;flex-wrap:wrap;}
.foot-col h5{font-family:'JetBrains Mono',monospace;font-size:.66rem;letter-spacing:.2em;text-transform:uppercase;color:var(--dimmer);margin-bottom:14px;}
.foot-col a{display:block;color:var(--text);text-decoration:none;font-size:.9rem;margin-bottom:9px;transition:color .25s;}
.foot-col a:hover{color:var(--cyan);}
.copy{border-top:1px solid var(--line);padding:22px 0;font-family:'JetBrains Mono',monospace;font-size:.66rem;
  letter-spacing:.08em;color:var(--dimmer);display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;}

.reveal{opacity:0;transform:translateY(26px);transition:opacity .7s cubic-bezier(.2,.7,.2,1),transform .7s cubic-bezier(.2,.7,.2,1);}
.reveal.in{opacity:1;transform:none;}

/* ============================================================
   ARTICLE PAGES  (/posts/*.html)
   ============================================================ */
.article-wrap{position:relative;z-index:2;max-width:820px;margin:0 auto;padding:0 28px;}

.back{display:inline-flex;align-items:center;gap:9px;margin-top:46px;font-family:'JetBrains Mono',monospace;
  font-size:.72rem;letter-spacing:.16em;text-transform:uppercase;color:var(--dim);text-decoration:none;transition:gap .25s,color .25s;}
.back:hover{color:var(--cyan);gap:14px;}

.post-head{padding:34px 0 8px;position:relative;}
.post-head .tags{display:flex;gap:10px;margin-bottom:24px;flex-wrap:wrap;}
.post-head h1{font-family:'Chakra Petch',sans-serif;font-weight:700;font-size:clamp(2rem,5vw,3.3rem);line-height:1.05;
  letter-spacing:-.01em;color:var(--white);margin-bottom:20px;}
.post-head .meta{font-family:'JetBrains Mono',monospace;font-size:.74rem;letter-spacing:.1em;color:var(--dimmer);}
.post-head .meta b{color:var(--text);font-weight:500;}

.post-hero{margin:38px 0 10px;border:1px solid var(--line-strong);background:var(--void-2) center/cover no-repeat;
  aspect-ratio:16/8;width:100%;position:relative;overflow:hidden;}
.post-hero::after{content:"";position:absolute;inset:0;
  background:radial-gradient(90% 90% at 70% 0%,transparent,rgba(5,6,13,.35));}
.post-hero .caption{position:absolute;left:0;right:0;bottom:0;padding:14px 18px;z-index:2;
  font-family:'JetBrains Mono',monospace;font-size:.66rem;letter-spacing:.06em;color:var(--dim);
  background:linear-gradient(0deg,rgba(5,6,13,.85),transparent);}

/* article body typography */
.post-body{padding:42px 0 20px;font-size:1.075rem;line-height:1.78;color:var(--text);}
.post-body > *{max-width:68ch;}
.post-body .standfirst{font-size:1.2rem;line-height:1.6;color:var(--white);margin-bottom:34px;font-weight:500;}
.post-body h2{font-family:'Chakra Petch',sans-serif;font-weight:600;font-size:1.7rem;color:var(--white);
  margin:48px 0 16px;letter-spacing:-.005em;}
.post-body h3{font-family:'Chakra Petch',sans-serif;font-weight:600;font-size:1.28rem;color:var(--cyan);
  margin:38px 0 12px;letter-spacing:.01em;}
.post-body h3 .kicker{display:block;font-family:'JetBrains Mono',monospace;font-size:.66rem;letter-spacing:.22em;
  text-transform:uppercase;color:var(--gold);margin-bottom:6px;}
.post-body p{margin-bottom:22px;}
.post-body a{color:var(--cyan);text-decoration:none;border-bottom:1px solid rgba(95,233,255,.3);transition:border-color .2s;}
.post-body a:hover{border-bottom-color:var(--cyan);}
.post-body strong{color:var(--white);}
.post-body em{color:var(--text);}
.post-body ul,.post-body ol{margin:0 0 22px 1.1em;}
.post-body li{margin-bottom:9px;}
.post-body blockquote{margin:30px 0;padding:6px 0 6px 26px;border-left:2px solid var(--cyan);
  color:var(--white);font-size:1.18rem;line-height:1.6;font-style:italic;}
.post-body figure{margin:34px 0;}
.post-body figure img{width:100%;border:1px solid var(--line-strong);display:block;}
.post-body figcaption{margin-top:10px;font-family:'JetBrains Mono',monospace;font-size:.68rem;letter-spacing:.05em;color:var(--dimmer);}
.post-body hr{border:none;border-top:1px solid var(--line);margin:40px auto;max-width:200px;}
.post-body .verse{font-family:'JetBrains Mono',monospace;white-space:pre-wrap;line-height:1.9;color:var(--white);
  font-size:1rem;border-left:2px solid var(--magenta);padding-left:24px;margin:26px 0;}
.post-body .signoff{margin-top:40px;font-family:'JetBrains Mono',monospace;font-size:.8rem;letter-spacing:.06em;color:var(--gold);}

/* editor placeholder note — delete once content is pasted in */
.editor-note{max-width:68ch;border:1px dashed var(--line-strong);background:rgba(95,233,255,.04);
  border-radius:3px;padding:18px 20px;margin:0 0 30px;font-family:'JetBrains Mono',monospace;
  font-size:.78rem;line-height:1.7;letter-spacing:.03em;color:var(--dim);}
.editor-note b{color:var(--gold);}
.placeholder-line{color:var(--dimmer);font-style:italic;}

/* next / prev nav */
.post-nav{display:flex;justify-content:space-between;gap:20px;margin:54px 0 10px;padding-top:30px;border-top:1px solid var(--line);flex-wrap:wrap;}
.post-nav a{font-family:'JetBrains Mono',monospace;font-size:.74rem;letter-spacing:.08em;color:var(--text);
  text-decoration:none;transition:color .25s;max-width:46%;}
.post-nav a:hover{color:var(--cyan);}
.post-nav .lbl{display:block;color:var(--dimmer);font-size:.64rem;letter-spacing:.2em;text-transform:uppercase;margin-bottom:5px;}
.post-nav .nxt{text-align:right;margin-left:auto;}

/* ---------- responsive ---------- */
@media(max-width:900px){
  nav{display:none;}
  .grid{grid-template-columns:1fr 1fr;}
  .card.video{grid-column:1 / -1;}
  .featured{grid-template-columns:1fr;}
  .featured .img{min-height:220px;}
  .featured .img::after{background:linear-gradient(0deg,rgba(9,11,22,.92),transparent 70%);}
  .about{grid-template-columns:1fr;text-align:center;justify-items:center;}
}
@media(max-width:600px){
  .grid{grid-template-columns:1fr;}
  .post-body{font-size:1.02rem;}
}