/* ===========================================================
   RPIT Field Notes — editorial blog stylesheet
   Token system:
   Color   — paper #FCFCFA, ink #121212, graphite #6E6E6E,
             hairline #DEDEDA, signal #E63946
   Type    — display: "Big Shoulders Display" (condensed, high-impact)
             body/dek: "Source Serif 4"
             ui/meta: "Inter"
   Layout  — left-aligned, asymmetric editorial grid, hairline rules,
             no rounded cards / no drop shadows
   =========================================================== */

@import url("https://fonts.googleapis.com/css2?family=Big+Shoulders+Display:wght@600;700;800&family=Source+Serif+4:ital,opsz,wght@0,8..60,400;0,8..60,600;1,8..60,400&family=Inter:wght@400;500;600&display=swap");

:root{
  --paper:#FCFCFA;
  --ink:#121212;
  --graphite:#6E6E6E;
  --hairline:#DEDEDA;
  --signal:#E63946;
  --signal-dim:#F6DADC;
  --max:1180px;
  --gutter:clamp(20px, 4vw, 48px);
}

*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:"Inter",system-ui,sans-serif;
  line-height:1.5;
}
img{max-width:100%;display:block;}
a{color:inherit;}
a:focus-visible,button:focus-visible{
  outline:3px solid var(--signal);
  outline-offset:2px;
}
@media (prefers-reduced-motion: reduce){
  *{animation:none !important;transition:none !important;}
}

.wrap{
  max-width:var(--max);
  margin:0 auto;
  padding:0 var(--gutter);
}

/* ---------- masthead ---------- */
.masthead{
  border-bottom:1px solid var(--hairline);
  padding:22px 0 18px;
}
.masthead .wrap{
  display:flex;
  align-items:baseline;
  justify-content:space-between;
  gap:24px;
  flex-wrap:wrap;
}
.wordmark{
  font-family:"Big Shoulders Display",sans-serif;
  font-weight:800;
  font-size:clamp(28px,4vw,38px);
  letter-spacing:0.2px;
  text-decoration:none;
  color:var(--ink);
  line-height:1;
}
.wordmark span{color:var(--signal);}
.masthead nav{
  display:flex;
  gap:22px;
  font-size:14px;
  font-weight:500;
}
.masthead nav a{text-decoration:none;color:var(--graphite);}
.masthead nav a:hover{color:var(--ink);}

/* ---------- tags / meta ---------- */
.tag{
  display:inline-block;
  font-size:12.5px;
  font-weight:600;
  color:var(--signal);
  border-bottom:2px solid var(--signal);
  padding-bottom:2px;
  text-decoration:none;
}
.meta{
  font-size:13px;
  color:var(--graphite);
}
.tag-list{
  margin:0 0 16px;
  display:flex;
  flex-wrap:wrap;
  gap:6px;
}
.tag-chip{
  display:inline-block;
  font-size:12px;
  font-weight:500;
  color:var(--graphite);
  background:rgba(0,0,0,0.05);
  border-radius:999px;
  padding:3px 10px;
}
.meta .dot{margin:0 8px;}

/* ---------- hero (featured post) ---------- */
.hero{
  border-bottom:1px solid var(--hairline);
  padding:48px 0 56px;
}
.hero-grid{
  display:grid;
  grid-template-columns:1.1fr 0.9fr;
  gap:44px;
  align-items:center;
}
.hero-media{
  aspect-ratio:4/3;
  background:var(--ink) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='4' height='4'%3E%3Crect width='4' height='4' fill='%23121212'/%3E%3C/svg%3E");
  background-size:cover;
  background-position:center;
  overflow:hidden;
  order:2;
}
.hero-media img{width:100%;height:100%;object-fit:cover;}
.hero-text{order:1;}
.hero-text .tag{margin-bottom:14px;}
.hero-title{
  font-family:"Big Shoulders Display",sans-serif;
  font-weight:700;
  font-size:clamp(34px,5.4vw,64px);
  line-height:0.98;
  letter-spacing:0.1px;
  margin:0 0 18px;
  max-width:15ch;
}
.hero-title a{text-decoration:none;color:var(--ink);}
.dek{
  font-family:"Source Serif 4",Georgia,serif;
  font-size:19px;
  line-height:1.55;
  color:#2b2b2b;
  max-width:56ch;
  margin:0 0 18px;
}

/* ---------- listing grid ---------- */
.listing{padding:52px 0 72px;}
.listing h2{
  font-family:"Big Shoulders Display",sans-serif;
  font-weight:700;
  font-size:22px;
  letter-spacing:0.2px;
  margin:0 0 28px;
  padding-bottom:14px;
  border-bottom:1px solid var(--hairline);
}
.grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:0;
}
.card{
  padding:0 28px 28px 0;
  border-right:1px solid var(--hairline);
}
.card:nth-child(3n){border-right:none;padding-right:0;}
.card + .card{padding-top:28px;}
.card-media{
  aspect-ratio:16/10;
  background:#e9e9e5;
  margin-bottom:16px;
  overflow:hidden;
}
.card-media img{width:100%;height:100%;object-fit:cover;}
.card .tag{margin-bottom:10px;}
.card h3{
  font-family:"Big Shoulders Display",sans-serif;
  font-weight:700;
  font-size:23px;
  line-height:1.08;
  margin:0 0 10px;
}
.card h3 a{text-decoration:none;color:var(--ink);}
.card p{
  font-family:"Source Serif 4",Georgia,serif;
  font-size:15.5px;
  color:#3c3c3c;
  line-height:1.5;
  margin:0 0 12px;
}

/* ---------- article page ---------- */
.article-head{
  padding:44px 0 30px;
  border-bottom:1px solid var(--hairline);
}
.article-head .tag{margin-bottom:16px;}
.article-title{
  font-family:"Big Shoulders Display",sans-serif;
  font-weight:700;
  font-size:clamp(32px,5.6vw,58px);
  line-height:1.0;
  max-width:20ch;
  margin:0 0 18px;
}
.article-media{
  margin:0;
  aspect-ratio:21/9;
  background:#e9e9e5;
  overflow:hidden;
}
.article-media img{width:100%;height:100%;object-fit:cover;}
.article-body{
  max-width:68ch;
  margin:44px auto 0;
  padding:0 var(--gutter) 80px;
  font-family:"Source Serif 4",Georgia,serif;
  font-size:19px;
  line-height:1.68;
  color:#232323;
}
.article-body p{margin:0 0 24px;}
.article-body h2{
  font-family:"Inter",sans-serif;
  font-weight:600;
  font-size:15px;
  color:var(--graphite);
  margin:40px 0 16px;
}
.article-body blockquote{
  margin:32px 0;
  padding-left:20px;
  border-left:3px solid var(--signal);
  font-style:italic;
  color:#3a3a3a;
}
.article-footer{
  max-width:68ch;
  margin:0 auto;
  padding:0 var(--gutter) 60px;
  display:flex;
  gap:16px;
  align-items:center;
  font-size:14px;
  color:var(--graphite);
}
.cta{
  display:inline-block;
  background:var(--ink);
  color:var(--paper);
  text-decoration:none;
  font-size:14px;
  font-weight:600;
  padding:11px 18px;
}
.cta:hover{background:var(--signal);}

/* ---------- footer ---------- */
.site-footer{
  border-top:1px solid var(--hairline);
  padding:28px 0;
  font-size:13px;
  color:var(--graphite);
}

/* ---------- responsive ---------- */
@media (max-width:860px){
  .hero-grid{grid-template-columns:1fr;gap:24px;}
  .hero-media{order:1;}
  .hero-text{order:2;}
  .grid{grid-template-columns:1fr;}
  .card{border-right:none;padding:0 0 28px;border-bottom:1px solid var(--hairline);}
  .card:last-child{border-bottom:none;}
  .card + .card{padding-top:28px;}
}
/* ===========================================================
   RPIT Field Notes — additions for post interactions
   (append this file's link after blog.css, or merge into it)
   =========================================================== */

.article-footer{
  flex-wrap:wrap;
  padding-top:24px;
  padding-bottom:24px;
  border-top:1px solid var(--hairline);
  border-bottom:1px solid var(--hairline);
  margin-bottom:44px;
}
.cta.big{font-size:16px;padding:14px 22px;}
.cta.secondary{background:transparent;color:var(--ink);border:1px solid var(--hairline);}
.cta.secondary:hover{border-color:var(--ink);background:transparent;}
.cta.liked{background:var(--signal);cursor:default;}
.cta:disabled{opacity:0.85;cursor:default;}

.share-row{
  display:flex;
  align-items:center;
  gap:14px;
  font-size:14px;
  color:var(--graphite);
}
.share-row a{text-decoration:none;font-weight:600;color:var(--ink);}
.share-row a:hover{color:var(--signal);}

.comments{max-width:68ch;margin:0 auto;padding:0 var(--gutter) 80px;}
.comments h2{
  font-family:"Big Shoulders Display",sans-serif;
  font-weight:700;
  font-size:24px;
  margin:0 0 24px;
}
.comment{padding:18px 0;border-bottom:1px solid var(--hairline);}
.comment-meta{font-size:13px;color:var(--graphite);margin:0 0 6px;}
.comment p:last-child{margin:0;font-family:"Source Serif 4",Georgia,serif;font-size:16px;}
.muted{color:var(--graphite);font-size:15px;}
.notice{background:var(--signal-dim);padding:12px 16px;font-size:14px;margin-bottom:20px;}
.notice.error{background:#FBD5D5;}

.comment-form{
  display:flex;
  flex-direction:column;
  gap:12px;
  margin-top:28px;
}
.comment-form .hp-field{position:absolute;left:-9999px;width:1px;height:1px;}
.comment-form input,
.comment-form textarea{
  font-family:"Inter",sans-serif;
  font-size:16px;
  padding:12px 14px;
  border:1px solid var(--hairline);
  background:var(--paper);
  color:var(--ink);
}
.comment-form input:focus,
.comment-form textarea:focus{outline:none;border-color:var(--ink);}
.comment-form button{align-self:flex-start;}

/* ---------- added: filters, pager, share, related, CTA ---------- */
.cat-filter{display:flex;flex-wrap:wrap;gap:8px;padding-top:18px;padding-bottom:6px;font-size:13px;font-weight:600}
.cat-filter a{text-decoration:none;color:var(--graphite);border:1px solid var(--hairline);border-radius:999px;padding:4px 12px}
.cat-filter a.on,.cat-filter a:hover{color:var(--ink);border-color:var(--ink)}
.listing-h1{font-family:"Big Shoulders Display",sans-serif;font-size:clamp(34px,5vw,56px);margin:28px 0 0}
.pager{display:flex;gap:20px;justify-content:center;align-items:center;margin:40px 0;font-size:14px}
.pager a{font-weight:600;text-decoration:none}
.share-row{display:flex;flex-wrap:wrap;gap:8px 14px;align-items:center;margin-top:16px}
.share-btn{font:inherit;font-weight:600;background:none;border:0;padding:0;cursor:pointer;color:var(--ink);text-decoration:underline}
.share-btn:hover{color:var(--signal)}
.cta-box{display:flex;flex-wrap:wrap;gap:12px;align-items:center;border-top:1px solid var(--hairline);border-bottom:1px solid var(--hairline);padding:22px var(--gutter);margin:30px auto}
.cta-box p{flex:1 1 320px;margin:0}
.cta-box .cta{text-decoration:none;display:inline-block}
.related-posts{margin:20px auto 50px}
.related-posts h2{font-family:"Big Shoulders Display",sans-serif;font-size:30px}