/* open thinking — archived edition */
:root {
  --paper: #faf8f5;
  --ink: #1c1a17;
  --ink-soft: #5f5a52;
  --line: #e6e1d8;
  --accent: #9a4a00;
  --accent-ink: #7c3c00;
  --card: #ffffff;
  --note-bg: #f3efe7;
  --mark-invert: 0;
  --measure: 44rem;
}
@media (prefers-color-scheme: dark) {
  :root {
    --paper: #171512;
    --ink: #ece7de;
    --ink-soft: #a89f92;
    --line: #322e28;
    --accent: #e8964a;
    --accent-ink: #f0a95f;
    --card: #201d19;
    --note-bg: #241f18;
    --mark-invert: 1;
  }
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  font-size: 1.0625rem;
  line-height: 1.6;
  -webkit-text-size-adjust: 100%;
}

a { color: var(--accent-ink); text-decoration-thickness: 1px; text-underline-offset: 2px; }
a:hover { text-decoration-thickness: 2px; }
a:focus-visible, button:focus-visible, input:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 2px;
  border-radius: 2px;
}

.skip {
  position: absolute; left: -999px; top: 0; z-index: 10;
  background: var(--accent); color: #fff; padding: .6rem 1rem;
}
.skip:focus { left: .5rem; top: .5rem; }

.visually-hidden {
  position: absolute; width: 1px; height: 1px; overflow: hidden;
  clip: rect(0 0 0 0); white-space: nowrap;
}

/* header */
.site-header {
  display: flex; flex-wrap: wrap; gap: .75rem 1.5rem;
  align-items: center; justify-content: space-between;
  max-width: 72rem; margin: 0 auto; padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--line);
}
.brand { display: flex; align-items: center; gap: .7rem; text-decoration: none; color: var(--ink); }
.brand img { border-radius: 8px; filter: invert(var(--mark-invert)); }
.brand-text { display: flex; flex-direction: column; line-height: 1.15; }
.brand-text strong { font-size: 1.2rem; letter-spacing: .01em; }
.brand-text small { color: var(--ink-soft); font-size: .78rem; }
.site-header nav ul {
  display: flex; flex-wrap: wrap; gap: .1rem;
  list-style: none; margin: 0; padding: 0;
}
.site-header nav a {
  display: block; padding: .45rem .7rem; border-radius: 6px;
  text-decoration: none; color: var(--ink-soft); font-size: .95rem;
}
.site-header nav a:hover { color: var(--ink); background: var(--note-bg); }
.site-header nav a[aria-current="page"] { color: var(--ink); font-weight: 600; }

main { max-width: var(--measure); margin: 0 auto; padding: 2rem 1.25rem 4rem; }

/* hero */
.hero { text-align: center; padding: 2.5rem 0 1.5rem; }
.hero-mark { filter: invert(var(--mark-invert)); }
.hero h1 { font-size: clamp(2.2rem, 6vw, 3.2rem); margin: .5rem 0 0; letter-spacing: -.01em; }
.tagline { color: var(--ink-soft); font-size: 1.15rem; margin: .25rem 0 1.25rem; }
.hero-desc { text-align: left; max-width: 38rem; margin: 0 auto 1.5rem; }
.hero-search { display: flex; gap: .5rem; max-width: 30rem; margin: 0 auto; }
.hero-search input, #searchform input {
  flex: 1; padding: .7rem 1rem; font-size: 1rem;
  border: 1.5px solid var(--line); border-radius: 8px;
  background: var(--card); color: var(--ink);
}
.hero-search button {
  padding: .7rem 1.2rem; font-size: 1rem; border: 0; border-radius: 8px;
  background: var(--accent); color: #fff; cursor: pointer;
}
.hero-search button:hover { filter: brightness(1.1); }

section h2 { margin-top: 2.5rem; font-size: 1.35rem; }

/* post lists */
.post-list { list-style: none; margin: 0; padding: 0; }
.post-list li {
  display: flex; gap: 1rem; align-items: baseline; justify-content: space-between;
  padding: .55rem 0; border-bottom: 1px solid var(--line);
}
.post-list a { text-decoration: none; }
.post-list a:hover { text-decoration: underline; }
.post-list time { color: var(--ink-soft); font-size: .85rem; white-space: nowrap; }
.more { display: inline-block; margin-top: .75rem; font-weight: 600; text-decoration: none; }

/* year pills */
.year-pills, .year-nav ul {
  display: flex; flex-wrap: wrap; gap: .5rem;
  list-style: none; margin: 1rem 0; padding: 0;
}
.year-pills a, .year-nav a {
  display: inline-flex; gap: .45rem; align-items: baseline;
  padding: .4rem .8rem; border: 1.5px solid var(--line); border-radius: 999px;
  text-decoration: none; color: var(--ink); background: var(--card); font-weight: 600;
}
.year-pills a span, .year-nav a span { color: var(--ink-soft); font-weight: 400; font-size: .8rem; }
.year-pills a:hover, .year-nav a:hover { border-color: var(--accent); }

.year-nav { position: sticky; top: 0; background: var(--paper); padding: .5rem 0; z-index: 5; }
.year-block h2 { display: flex; gap: .75rem; align-items: baseline; margin-top: 2rem; }
.year-block .count { color: var(--ink-soft); font-size: .85rem; font-weight: 400; }

/* article */
.post-header { margin-bottom: 1.75rem; }
.crumb { margin: 0 0 .5rem; font-size: .85rem; }
.crumb a { color: var(--ink-soft); text-decoration: none; }
.post-header h1, .page-header h1 { font-size: clamp(1.7rem, 5vw, 2.4rem); line-height: 1.2; margin: 0 0 .4rem; letter-spacing: -.01em; }
.meta { color: var(--ink-soft); font-size: .95rem; margin: 0; }

.post-body {
  font-family: Charter, "Bitstream Charter", "Iowan Old Style", Georgia, serif;
  font-size: 1.155rem; line-height: 1.72;
}
.post-body p { margin: 1.1em 0; }
.post-body img { max-width: 100%; height: auto; border-radius: 6px; }
.post-body blockquote {
  margin: 1.25em 0; padding: .1em 1.25em;
  border-left: 3px solid var(--accent); background: var(--note-bg);
  border-radius: 0 6px 6px 0; color: var(--ink);
}
.post-body pre { overflow-x: auto; background: var(--note-bg); padding: 1rem; border-radius: 8px; font-size: .85em; }
.post-body code { background: var(--note-bg); padding: .1em .3em; border-radius: 4px; font-size: .9em; }
.post-body hr { border: 0; border-top: 1px solid var(--line); margin: 2em 0; }
.post-body audio { width: 100%; }
.post-body table { border-collapse: collapse; display: block; overflow-x: auto; }
.post-body td, .post-body th { border: 1px solid var(--line); padding: .4rem .6rem; }

.video-embed { position: relative; aspect-ratio: 16 / 9; margin: 1.25em 0; }
.video-embed iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; border-radius: 8px; }
.post-body iframe { max-width: 100%; }

/* archival notes */
.lost-media {
  display: block; margin: 1.25em 0; padding: .8rem 1rem;
  background: var(--note-bg); border: 1px dashed var(--line); border-radius: 8px;
  color: var(--ink-soft); font-size: .9rem; font-family: system-ui, sans-serif;
}
.dead-embed {
  margin: 1.25em 0; padding: .8rem 1rem;
  background: var(--note-bg); border: 1px dashed var(--line); border-radius: 8px;
  color: var(--ink-soft); font-size: .9rem; font-family: system-ui, sans-serif;
}
a.wb::after { content: " ↺"; color: var(--ink-soft); font-size: .85em; }

.posse-note {
  margin: 1.5rem 0; padding: .85rem 1.1rem;
  background: var(--note-bg); border-left: 3px solid var(--accent);
  border-radius: 0 8px 8px 0; color: var(--ink);
  font-size: .92rem; font-family: system-ui, sans-serif;
}
.posse-note a { font-weight: 600; }

/* tags */
.tag-list, .tag-cloud { list-style: none; display: flex; flex-wrap: wrap; gap: .5rem; padding: 0; margin: 1.5rem 0; }
.tag-list a, .tag-cloud a {
  display: inline-block; padding: .25rem .7rem; border-radius: 999px;
  background: var(--note-bg); border: 1px solid var(--line);
  text-decoration: none; color: var(--ink); font-size: .88rem; font-family: system-ui, sans-serif;
}
.tag-list a:hover, .tag-cloud a:hover { border-color: var(--accent); }
.tag-cloud a span { color: var(--ink-soft); font-size: .8em; }

/* prev/next */
.post-nav {
  display: grid; grid-template-columns: 1fr 1fr; gap: 1rem;
  margin: 2.5rem 0 0; padding-top: 1.5rem; border-top: 1px solid var(--line);
}
.post-nav a { display: flex; flex-direction: column; gap: .2rem; text-decoration: none; font-weight: 600; line-height: 1.3; }
.post-nav a small { color: var(--ink-soft); font-weight: 400; }
.pn-next { text-align: right; }
.post-nav a:hover { color: var(--accent-ink); }

/* comments */
.comments { margin-top: 3rem; padding-top: 1.5rem; border-top: 1px solid var(--line); }
.comments h2 { font-size: 1.25rem; }
.c-note { color: var(--ink-soft); font-size: .88rem; }
.comment {
  margin: 1rem 0 1rem calc(var(--depth) * 1.25rem);
  padding: .9rem 1.1rem; background: var(--card);
  border: 1px solid var(--line); border-radius: 10px;
}
.comment header { display: flex; gap: .75rem; align-items: baseline; margin-bottom: .3rem; }
.c-author { font-weight: 600; }
.comment time { color: var(--ink-soft); font-size: .82rem; }
.c-body { font-size: .97rem; }
.c-body p { margin: .5em 0; }

/* search */
#searchform { display: flex; margin-bottom: 1.5rem; }
#results article { padding: .9rem 0; border-bottom: 1px solid var(--line); }
#results h3 { margin: 0 0 .2rem; font-size: 1.05rem; }
#results h3 a { text-decoration: none; }
#results h3 a:hover { text-decoration: underline; }
#results .r-meta { color: var(--ink-soft); font-size: .82rem; }
#results p { margin: .3rem 0 0; font-size: .93rem; color: var(--ink-soft); }

/* footer */
.site-footer {
  border-top: 1px solid var(--line);
  max-width: 72rem; margin: 0 auto; padding: 1.5rem 1.25rem 2.5rem;
  color: var(--ink-soft); font-size: .88rem;
}

@media (max-width: 600px) {
  .post-list li { flex-direction: column; gap: .1rem; }
  .post-nav { grid-template-columns: 1fr; }
  .pn-next { text-align: left; }
}