/* TechArchive — shared editorial stylesheet
   Used by every page in this site (article, About, Contact, Privacy, Terms) */

:root{
  --red:#c8102e;
  --red-dark:#8f0b20;
  --black:#111111;
  --gray:#5b5b5b;
  --line:#e6e6e6;
  --bg-subtle:#faf5f5;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:#ffffff;
  color:var(--black);
  font-family:"Segoe UI", Arial, Helvetica, sans-serif;
  line-height:1.7;
}
a{color:var(--red);text-decoration:none;}
a:hover{text-decoration:underline;}
img{max-width:100%;height:auto;display:block;}
.container{max-width:980px;margin:0 auto;padding:0 20px;}
.skip-link{
  position:absolute;left:-999px;top:auto;
}
.skip-link:focus{
  left:20px;top:10px;background:#fff;padding:8px 12px;border:2px solid var(--red);z-index:100;
}

/* ---------- Header / nav ---------- */
header.site{
  border-bottom:3px solid var(--black);
  padding:16px 0;
}
header.site .container{
  display:flex;
  align-items:center;
  justify-content:space-between;
  flex-wrap:wrap;
  gap:10px;
}
.brand{
  display:flex;
  align-items:center;
  gap:8px;
  font-weight:800;
  font-size:1.3rem;
  letter-spacing:.5px;
  color:var(--black);
}
.brand:hover{text-decoration:none;}
.brand .mark{
  width:28px;height:28px;
  display:inline-block;
}
.brand span{color:var(--red);}
nav.main-nav ul{
  list-style:none;
  display:flex;
  gap:22px;
  margin:0;
  padding:0;
}
nav.main-nav a{
  color:var(--black);
  font-size:.92rem;
  font-weight:600;
}
nav.main-nav a:hover,
nav.main-nav a[aria-current="page"]{
  color:var(--red);
}

/* ---------- Hero / article header ---------- */
.hero{padding:36px 0 20px;}
.eyebrow{
  display:inline-block;
  background:var(--red);
  color:#fff;
  font-size:.75rem;
  font-weight:700;
  letter-spacing:.5px;
  padding:4px 10px;
  border-radius:3px;
  margin-bottom:14px;
}
h1{
  font-size:2.1rem;
  line-height:1.25;
  margin:0 0 14px;
}
.subtitle{
  font-size:1.1rem;
  color:var(--gray);
  margin:0 0 18px;
  max-width:760px;
}
.byline-row{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:6px 14px;
  font-size:.85rem;
  color:var(--gray);
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
  padding:10px 0;
  margin-bottom:24px;
}
.byline-row b{color:var(--black);}
.byline-row .sep{color:var(--line);}

/* ---------- Figures ---------- */
figure{margin:0 0 32px;}
figure img{width:100%;border:1px solid var(--line);}
figcaption{
  font-size:.8rem;
  color:var(--gray);
  margin-top:8px;
  padding-left:2px;
}

/* ---------- Article body ---------- */
article h2{
  font-size:1.5rem;
  margin:40px 0 14px;
  padding-left:14px;
  border-left:5px solid var(--red);
}
article p{
  font-size:1.05rem;
  margin:0 0 18px;
}
.lead{
  font-size:1.15rem;
  color:var(--black);
}
.pull{
  border-left:4px solid var(--red);
  background:var(--bg-subtle);
  padding:14px 18px;
  margin:24px 0;
  font-size:1.1rem;
  font-weight:600;
}
.highlight{color:var(--red);font-weight:700;}

/* ---------- Timeline ---------- */
.timeline{
  list-style:none;
  margin:20px 0 30px;
  padding:0;
  border-left:2px solid var(--line);
}
.timeline li{
  position:relative;
  padding:0 0 22px 26px;
}
.timeline li::before{
  content:"";
  position:absolute;
  left:-7px;
  top:4px;
  width:12px;
  height:12px;
  background:var(--red);
  border-radius:50%;
}
.timeline .yr{
  display:block;
  font-weight:800;
  color:var(--red);
  margin-bottom:2px;
}

/* ---------- Cards / gallery ---------- */
.grid-2{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:24px;
  margin:30px 0;
}
.card{
  border:1px solid var(--line);
  border-top:4px solid var(--red);
  padding:18px;
}
.card h3{margin:0 0 8px;font-size:1.05rem;}
.card p{margin:0;font-size:.95rem;color:var(--gray);}

.gallery{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:16px;
  margin:24px 0 8px;
}
.gallery figure{margin:0;}

/* ---------- Sources / references ---------- */
.sources{
  margin-top:44px;
  padding-top:24px;
  border-top:1px solid var(--line);
}
.sources h2{
  border-left:5px solid var(--red);
  padding-left:14px;
  font-size:1.3rem;
  margin:0 0 14px;
}
.sources ul{
  margin:0;
  padding-left:18px;
  font-size:.92rem;
  color:var(--gray);
}
.sources li{margin-bottom:8px;}

/* ---------- CTA ---------- */
.cta-row{
  margin:34px 0 10px;
}
.btn{
  display:inline-block;
  padding:11px 22px;
  border:2px solid var(--black);
  color:var(--black);
  font-weight:700;
  font-size:.95rem;
  border-radius:3px;
}
.btn:hover{
  background:var(--black);
  color:#fff;
  text-decoration:none;
}

/* ---------- Generic content pages (About / Contact / Privacy / Terms) ---------- */
.page-main{padding:40px 0 60px;}
.page-main h1{font-size:1.9rem;}
.page-main h2{
  font-size:1.25rem;
  margin:32px 0 10px;
  padding-left:12px;
  border-left:4px solid var(--red);
}
.page-main p{font-size:1.02rem;margin:0 0 16px;max-width:760px;}
.page-main ul{font-size:1.02rem;max-width:760px;margin:0 0 16px;padding-left:20px;}
.page-main li{margin-bottom:6px;}
.contact-email{
  display:inline-block;
  margin-top:6px;
  font-weight:700;
}

/* ---------- Footer ---------- */
footer.site-footer{
  border-top:3px solid var(--black);
  margin-top:50px;
  padding:30px 0;
  background:#fafafa;
}
.footer-grid{
  display:flex;
  flex-wrap:wrap;
  justify-content:space-between;
  gap:24px;
}
.footer-brand{font-weight:800;font-size:1.05rem;margin-bottom:6px;}
.footer-brand span{color:var(--red);}
.footer-tagline{font-size:.85rem;color:var(--gray);max-width:320px;}
.footer-links{
  list-style:none;
  margin:0;
  padding:0;
  display:flex;
  flex-wrap:wrap;
  gap:8px 20px;
  font-size:.88rem;
}
.footer-links a{color:var(--black);}
.footer-links a:hover{color:var(--red);}
.footer-bottom{
  margin-top:22px;
  padding-top:16px;
  border-top:1px solid var(--line);
  font-size:.78rem;
  color:var(--gray);
}

/* ---------- Image credits block (kept inside article footer) ---------- */
.credits-block{
  border-top:1px solid var(--line);
  margin-top:24px;
  padding-top:18px;
  font-size:.82rem;
  color:var(--gray);
}
.credits-block h4{color:var(--black);margin:0 0 10px;font-size:.95rem;}
.credits-block p{margin:0 0 6px;}

@media (max-width:640px){
  h1{font-size:1.5rem;}
  .grid-2, .gallery{grid-template-columns:1fr;}
  nav.main-nav ul{gap:14px;flex-wrap:wrap;}
  .footer-grid{flex-direction:column;}
}