:root {
  --paper: #EFEFE7;
  --paper-raised: #F7F7F1;
  --ink: #1C2321;
  --ink-soft: #52594F;
  --ink-faint: #86897E;
  --amber: #B7791F;
  --amber-deep: #8F5D14;
  --gold: #D9B36C;
  --teal: #2F6E68;
  --teal-deep: #1F4B47;
  --line: #D6D3C4;
  --max: 680px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: 'Inter', -apple-system, sans-serif;
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

::selection { background: var(--amber); color: var(--paper); }

a { color: var(--teal); }
a:focus-visible, button:focus-visible { outline: 2px solid var(--amber); outline-offset: 2px; }

h1, h2, h3 {
  font-family: 'Fraunces', Georgia, serif;
  font-weight: 500;
  line-height: 1.15;
  margin: 0;
  color: var(--ink);
}

p { margin: 0 0 1em; color: var(--ink-soft); }
p:last-child { margin-bottom: 0; }

.wrap { max-width: 860px; margin: 0 auto; padding: 0 28px; }

/* ---------- NAV (shared across every page) ---------- */
nav.top {
  padding: 22px 28px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: 860px;
  margin: 0 auto;
  gap: 16px;
}
nav.top .mark {
  font-family: 'Fraunces', serif;
  font-weight: 600;
  font-size: 1.15rem;
  letter-spacing: -0.01em;
  display: flex;
  align-items: baseline;
  white-space: nowrap;
}
nav.top .mark a { text-decoration: none; }
nav.top .mark .brand { color: var(--ink); }
nav.top .mark .domain { color: var(--ink-faint); font-weight: 400; }
nav.top .clock {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.8rem;
  color: var(--ink-faint);
}
@media (max-width: 640px) { nav.top .clock { display: none; } }
nav.top a.nav-link {
  color: var(--ink-soft);
  text-decoration: none;
  font-size: 0.92rem;
  border-bottom: 1px solid transparent;
  white-space: nowrap;
}
nav.top a.nav-link:hover { border-bottom-color: var(--ink-soft); }

/* ---------- FEED (index page) ---------- */
.feed-head {
  max-width: 860px;
  margin: 0 auto;
  padding: 32px 28px 48px;
}
.feed-head h1 { font-size: clamp(1.8rem, 3.6vw, 2.4rem); }
.feed-head p { margin-top: 14px; max-width: 56ch; font-size: 1.02rem; }

.feed {
  max-width: 860px;
  margin: 0 auto;
  padding: 0 28px 80px;
  display: flex;
  flex-direction: column;
}

.card {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 24px;
  padding: 28px 0;
  border-top: 1px solid var(--line);
  text-decoration: none;
}
.card:last-child { border-bottom: 1px solid var(--line); }
.card .illo { width: 120px; height: 120px; border-radius: 6px; overflow: hidden; background: var(--paper-raised); border: 1px solid var(--line); }
.card .illo svg { width: 100%; height: 100%; display: block; }
.card .meta {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.75rem;
  color: var(--ink-faint);
  margin-bottom: 8px;
  display: flex;
  gap: 10px;
  align-items: center;
}
.card .meta .tag {
  text-transform: uppercase;
  letter-spacing: 0.03em;
  padding: 2px 8px;
  border-radius: 3px;
  font-size: 0.68rem;
}
.card .meta .tag.linux { background: rgba(47,110,104,0.14); color: var(--teal-deep); }
.card .meta .tag.crypto { background: rgba(183,121,31,0.14); color: var(--amber-deep); }
.card h2 { font-size: 1.25rem; margin-bottom: 8px; color: var(--ink); }
.card:hover h2 { color: var(--amber-deep); }
.card .excerpt { font-size: 0.96rem; color: var(--ink-soft); max-width: 60ch; }
.card .read { font-size: 0.85rem; color: var(--teal); margin-top: 10px; display: inline-block; }

.empty-state {
  padding: 60px 0;
  color: var(--ink-faint);
  font-size: 0.95rem;
  text-align: center;
}

/* ---------- ARTICLE page ---------- */
.article-head {
  max-width: var(--max);
  margin: 0 auto;
  padding: 24px 28px 0;
}
.article-head .back {
  font-size: 0.88rem;
  color: var(--ink-soft);
  text-decoration: none;
  display: inline-block;
  margin-bottom: 22px;
}
.article-head .meta {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.78rem;
  color: var(--ink-faint);
  margin-bottom: 14px;
  display: flex;
  gap: 10px;
  align-items: center;
}
.article-head .meta .tag {
  text-transform: uppercase;
  letter-spacing: 0.03em;
  padding: 2px 8px;
  border-radius: 3px;
  font-size: 0.68rem;
}
.article-head .meta .tag.linux { background: rgba(47,110,104,0.14); color: var(--teal-deep); }
.article-head .meta .tag.crypto { background: rgba(183,121,31,0.14); color: var(--amber-deep); }
.article-head h1 { font-size: clamp(1.9rem, 4vw, 2.5rem); margin-bottom: 24px; }
.article-illo { max-width: var(--max); margin: 0 auto; padding: 0 28px 8px; }
.article-illo .illo { width: 100%; height: 220px; border-radius: 6px; overflow: hidden; background: var(--paper-raised); border: 1px solid var(--line); }
.article-illo .illo svg { width: 100%; height: 100%; display: block; }

.article-body {
  max-width: var(--max);
  margin: 0 auto;
  padding: 28px 28px 60px;
}
.article-body p { font-size: 1.02rem; }
.article-body h2 { font-size: 1.3rem; margin: 32px 0 14px; }

footer.site-footer {
  max-width: 860px;
  margin: 0 auto;
  padding: 32px 28px 60px;
  border-top: 1px solid var(--line);
  display: flex;
  justify-content: space-between;
  color: var(--ink-faint);
  font-size: 0.85rem;
  flex-wrap: wrap;
  gap: 10px;
}
footer.site-footer a { color: var(--ink-soft); }

@media (max-width: 560px) {
  .card { grid-template-columns: 1fr; }
  .card .illo { width: 100%; height: 160px; }
}