/* ============================================================
   debaird.net — archive rebuild
   Design concept: a field ledger. Twenty-one years of dated
   entries, stamped and cross-referenced, the way a researcher
   keeps a running record rather than a polished magazine.
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Source+Serif+4:opsz,wght@8..60,400;8..60,500;8..60,600;8..60,700&family=IBM+Plex+Mono:wght@400;500;600&display=swap');

:root{
  --paper:      #EFEBDE;
  --paper-dim:  #E6E1D1;
  --ink:        #1E2621;
  --ink-soft:   #4B5049;
  --line:       #C9C2AC;
  --brass:      #A8763E;
  --brass-dim:  #C8A06B;
  --verdigris:  #3F6E5B;
  --verdigris-dim: #EAF0EC;
  --night:      #17231F;
  --night-2:    #1F2E28;
  --paper-on-night: #E9E4D4;
  --max: 780px;
  --wide: 1100px;
}

*{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:'Source Serif 4', Georgia, serif;
  font-size:17px;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
a{ color:var(--verdigris); text-decoration-thickness:1px; text-underline-offset:3px; }
a:hover{ color:var(--brass); }
.mono{ font-family:'IBM Plex Mono', ui-monospace, monospace; }

img{ max-width:100%; height:auto; }

/* focus visibility */
a:focus-visible, button:focus-visible{
  outline:2px solid var(--brass);
  outline-offset:2px;
}
@media (prefers-reduced-motion: reduce){
  *{ animation-duration:0.01ms !important; transition-duration:0.01ms !important; scroll-behavior:auto !important; }
}

/* ---------- shell ---------- */
.wrap{ max-width:var(--wide); margin:0 auto; padding:0 28px; }
.wrap--narrow{ max-width:var(--max); }

header.site{
  border-bottom:1px solid var(--line);
  padding:22px 0;
}
header.site .wrap{ display:flex; align-items:baseline; justify-content:space-between; gap:20px; flex-wrap:wrap; }
.brand{
  font-family:'IBM Plex Mono', monospace;
  font-weight:600;
  font-size:14px;
  letter-spacing:.06em;
  text-transform:uppercase;
  color:var(--ink);
  text-decoration:none;
}
.brand span{ color:var(--brass); }
nav.site-nav{ display:flex; gap:22px; font-family:'IBM Plex Mono', monospace; font-size:13px; letter-spacing:.02em; }
nav.site-nav a{ color:var(--ink-soft); text-decoration:none; border-bottom:1px solid transparent; padding-bottom:2px; }
nav.site-nav a:hover, nav.site-nav a.active{ color:var(--ink); border-bottom-color:var(--brass); }

footer.site{
  margin-top:80px;
  border-top:1px solid var(--line);
  padding:30px 0 50px;
  font-family:'IBM Plex Mono', monospace;
  font-size:12.5px;
  color:var(--ink-soft);
}
footer.site .wrap{ display:flex; justify-content:space-between; flex-wrap:wrap; gap:10px; }

/* ---------- hero (homepage) ---------- */
.hero{
  background:var(--night);
  color:var(--paper-on-night);
  padding:70px 0 0;
  overflow:hidden;
}
.hero .wrap{ padding-bottom:56px; }
.hero-eyebrow{
  font-family:'IBM Plex Mono', monospace;
  font-size:12.5px;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--brass-dim);
  margin:0 0 18px;
}
.hero h1{
  font-family:'Source Serif 4', Georgia, serif;
  font-weight:700;
  font-size:clamp(34px, 5vw, 56px);
  line-height:1.08;
  margin:0 0 20px;
  max-width:14ch;
}
.hero p.lede{
  max-width:56ch;
  font-size:19px;
  color:#C9C4B2;
  margin:0 0 30px;
}
.hero-actions{ display:flex; gap:14px; flex-wrap:wrap; }
.btn{
  display:inline-block;
  font-family:'IBM Plex Mono', monospace;
  font-size:13px;
  letter-spacing:.03em;
  padding:11px 18px;
  border:1px solid var(--brass-dim);
  color:var(--paper-on-night);
  text-decoration:none;
  border-radius:2px;
}
.btn:hover{ background:var(--brass); border-color:var(--brass); color:var(--night); }
.btn.solid{ background:var(--brass-dim); color:var(--night); border-color:var(--brass-dim); font-weight:600;}
.btn.solid:hover{ background:var(--brass); }

/* ---------- era strip: the signature element ---------- */
.era-strip{ background:var(--night-2); border-top:1px solid #2A3A33; }
.era-track{
  display:flex;
  align-items:flex-end;
  gap:2px;
  padding:26px 0 8px;
  overflow-x:auto;
}
.era-track::-webkit-scrollbar{ height:6px; }
.era-col{
  flex:1 0 auto;
  min-width:34px;
  text-align:center;
  text-decoration:none;
  color:inherit;
}
.era-bar{
  background:linear-gradient(180deg, var(--brass-dim), var(--verdigris));
  width:100%;
  border-radius:2px 2px 0 0;
  opacity:.85;
}
.era-col:hover .era-bar{ opacity:1; background:var(--brass-dim); }
.era-yr{
  font-family:'IBM Plex Mono', monospace;
  font-size:10.5px;
  color:#9BA69D;
  margin-top:8px;
  writing-mode: vertical-rl;
  transform:rotate(180deg);
  height:34px;
}
.era-caption{
  font-family:'IBM Plex Mono', monospace;
  font-size:12px;
  color:#8B9690;
  padding:6px 0 22px;
  display:flex;
  justify-content:space-between;
  flex-wrap:wrap;
  gap:8px;
}

/* ---------- sections ---------- */
.section{ padding:64px 0; }
.section + .section{ border-top:1px solid var(--line); }
.section-head{ display:flex; justify-content:space-between; align-items:baseline; gap:20px; margin-bottom:34px; flex-wrap:wrap; }
.section-head h2{
  font-size:26px; margin:0;
  font-weight:600;
}
.stamp{
  font-family:'IBM Plex Mono', monospace;
  font-size:11.5px;
  letter-spacing:.1em;
  text-transform:uppercase;
  color:var(--verdigris);
  border:1px solid var(--verdigris);
  border-radius:2px;
  padding:3px 8px;
  white-space:nowrap;
}

/* frameworks grid */
.grid3{ display:grid; grid-template-columns:repeat(3, 1fr); gap:24px; }
@media (max-width:820px){ .grid3{ grid-template-columns:1fr; } }
.card{
  border:1px solid var(--line);
  background:var(--paper-dim);
  padding:24px;
  border-radius:2px;
}
.card h3{ margin:0 0 10px; font-size:18px; }
.card p{ margin:0; color:var(--ink-soft); font-size:15.5px; }

/* work timeline (about) */
.role{
  display:grid;
  grid-template-columns:150px 1fr;
  gap:20px;
  padding:18px 0;
  border-top:1px solid var(--line);
}
.role:last-child{ border-bottom:1px solid var(--line); }
.role .when{ font-family:'IBM Plex Mono', monospace; font-size:12.5px; color:var(--ink-soft); padding-top:3px; }
.role h4{ margin:0 0 6px; font-size:16.5px; }
.role p{ margin:0; color:var(--ink-soft); font-size:15px; }

/* ---------- post list / archive ---------- */
.filters{
  display:flex; gap:10px; flex-wrap:wrap; margin-bottom:30px;
  font-family:'IBM Plex Mono', monospace; font-size:13px;
}
#search{
  width:100%; max-width:340px;
  padding:10px 12px;
  border:1px solid var(--line);
  background:var(--paper);
  font-family:'IBM Plex Mono', monospace;
  font-size:13px;
  color:var(--ink);
  border-radius:2px;
}
#search:focus{ outline:2px solid var(--brass); outline-offset:1px; }
.chip{
  font-family:'IBM Plex Mono', monospace;
  font-size:12px;
  border:1px solid var(--line);
  background:var(--paper);
  color:var(--ink-soft);
  padding:6px 10px;
  border-radius:20px;
  cursor:pointer;
}
.chip.active{ background:var(--night); color:var(--paper-on-night); border-color:var(--night); }
#count{ font-family:'IBM Plex Mono', monospace; font-size:12.5px; color:var(--ink-soft); margin-bottom:18px; }

.entry{
  display:grid;
  grid-template-columns:120px 1fr;
  gap:22px;
  padding:20px 0;
  border-top:1px solid var(--line);
}
.entry:last-child{ border-bottom:1px solid var(--line); }
.entry .date{ font-family:'IBM Plex Mono', monospace; font-size:12.5px; color:var(--brass); padding-top:4px; }
.entry h3{ margin:0 0 6px; font-size:18px; line-height:1.35; }
.entry h3 a{ color:var(--ink); text-decoration:none; }
.entry h3 a:hover{ color:var(--verdigris); }
.entry p.ex{ margin:0 0 8px; color:var(--ink-soft); font-size:15px; }
.entry .cats{ font-family:'IBM Plex Mono', monospace; font-size:11px; color:var(--ink-soft); }
.entry .cats a{ color:var(--ink-soft); text-decoration:none; }
.entry .cats a:hover{ color:var(--brass); }
@media (max-width:600px){ .entry{ grid-template-columns:1fr; gap:6px; } }

.pager{ display:flex; justify-content:center; gap:8px; margin-top:36px; font-family:'IBM Plex Mono', monospace; font-size:13px; }
.pager button{
  border:1px solid var(--line); background:var(--paper); padding:8px 13px; cursor:pointer;
  font-family:'IBM Plex Mono', monospace; border-radius:2px; color:var(--ink);
}
.pager button.active{ background:var(--night); color:var(--paper-on-night); border-color:var(--night); }
.pager button:disabled{ opacity:.4; cursor:default; }

/* ---------- single post ---------- */
.post-meta{ font-family:'IBM Plex Mono', monospace; font-size:12.5px; color:var(--ink-soft); margin-bottom:14px; display:flex; gap:14px; flex-wrap:wrap; align-items:center;}
.post-meta .datestamp{
  border:1px solid var(--brass); color:var(--brass); border-radius:2px; padding:3px 8px; letter-spacing:.04em;
}
.post-title{ font-size:clamp(26px,4vw,38px); line-height:1.15; margin:0 0 22px; }
.post-cats{ margin-bottom:36px; display:flex; gap:8px; flex-wrap:wrap; }
.post-cats a{
  font-family:'IBM Plex Mono', monospace; font-size:11px; text-decoration:none;
  border:1px solid var(--line); border-radius:20px; padding:4px 10px; color:var(--ink-soft);
}
.post-cats a:hover{ border-color:var(--brass); color:var(--brass); }
.post-body{ font-size:18px; line-height:1.75; }
.post-body p{ margin:0 0 20px; }
.post-body img{ border:1px solid var(--line); }
.post-body blockquote{
  margin:24px 0; padding:4px 20px; border-left:3px solid var(--verdigris); color:var(--ink-soft); font-style:italic;
}
.post-body a{ word-break:break-word; }
.orig-note{
  margin-top:50px; padding-top:20px; border-top:1px solid var(--line);
  font-family:'IBM Plex Mono', monospace; font-size:12px; color:var(--ink-soft);
}
.back-link{
  display:inline-block; margin-bottom:30px; font-family:'IBM Plex Mono', monospace; font-size:13px; text-decoration:none; color:var(--ink-soft);
}
.back-link:hover{ color:var(--brass); }

/* ---------- about page ---------- */
.about-hero{ padding:60px 0 20px; }
.about-hero h1{ font-size:clamp(28px,4vw,42px); margin:0 0 16px; }
.about-hero p.lede{ max-width:64ch; color:var(--ink-soft); font-size:18px; }