:root {
  --bg: #ffffff;
  --bg-alt: #f5f5f7;
  --bg-hover: #ececf0;
  --text: #1a1a2e;
  --text-dim: #6b6b7b;
  --text-faint: #a0a0b0;
  --accent: #6354d0;
  --accent-dim: #b7adf0;
  --border: #e4e4ec;
  --green: #2f8f4e;
  --radius: 10px;
  --maxw: 760px;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", sans-serif;
  background: var(--bg); color: var(--text); line-height: 1.6; min-height: 100vh;
  display: flex; flex-direction: column;
}

/* header */
.top {
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  padding: 18px 24px; border-bottom: 1px solid var(--border);
  position: sticky; top: 0; background: rgba(255,255,255,.92); backdrop-filter: blur(8px); z-index: 10;
}
.wordmark { font-weight: 700; font-size: 17px; color: var(--text); text-decoration: none; letter-spacing: -.01em; }
.wordmark .dim { color: var(--text-faint); font-weight: 400; }
.search-form { flex: 0 1 320px; }
#search-input {
  width: 100%; padding: 8px 14px; border: 1px solid var(--border); border-radius: 999px;
  font-size: 14px; background: var(--bg-alt); color: var(--text); outline: none;
  transition: border-color .15s, background .15s;
}
#search-input:focus { border-color: var(--accent-dim); background: var(--bg); }

/* main */
.main { flex: 1; width: 100%; max-width: 1120px; margin: 0 auto; padding: 32px 24px 64px; }
.page, .searchview, .landing:not(.two-col) { max-width: var(--maxw); }
.loading, .empty { color: var(--text-faint); padding: 24px 0; font-size: 14px; }
.dim { color: var(--text-faint); font-weight: 400; font-size: .85em; }

/* landing */
.sec-h { font-size: 13px; text-transform: uppercase; letter-spacing: .08em; color: var(--text-dim); margin: 8px 0 14px; }
.evergreen { margin-bottom: 36px; }
.card {
  display: flex; align-items: baseline; gap: 12px;
  padding: 10px 14px; margin-bottom: 6px; border: 1px solid var(--border); border-radius: var(--radius);
  text-decoration: none; color: var(--text); background: var(--bg);
  transition: border-color .12s, background .12s;
}
.card:hover { border-color: var(--accent-dim); background: var(--bg-alt); }
.card-date { font-family: ui-monospace, "SF Mono", Menlo, monospace; font-size: 12.5px; color: var(--accent); white-space: nowrap; }
.card-title { font-size: 15px; }
.card.result { flex-direction: column; gap: 6px; align-items: stretch; }
.snippet { font-size: 13px; color: var(--text-dim); }
.month-h { font-family: ui-monospace, "SF Mono", Menlo, monospace; font-size: 13px; color: var(--text-dim); margin: 22px 0 10px; font-weight: 600; }

/* page view */
.page-title { font-size: 28px; letter-spacing: -.02em; margin: 10px 0 26px; line-height: 1.25; }
.back { display: inline-block; font-size: 13px; color: var(--text-dim); text-decoration: none; margin-bottom: 18px; }
.back:hover { color: var(--accent); }
.blocks { border-left: 2px solid var(--border); }
.blk { padding: 3px 0 3px 18px; margin: 2px 0; }
.lvl-1 { margin-left: 22px; } .lvl-2 { margin-left: 44px; } .lvl-3 { margin-left: 66px; }
.lvl-4 { margin-left: 88px; } .lvl-5 { margin-left: 110px; } .lvl-6 { margin-left: 132px; }
.blk.is-heading { margin-left: 0; }
.blk-h { margin: 18px 0 6px; font-size: 17px; }
.blocks h3.blk-h { font-size: 17px; } .blocks h4.blk-h { font-size: 15.5px; } .blocks h5.blk-h, .blocks h6.blk-h { font-size: 14px; }
.ref { color: var(--accent); text-decoration: none; border-bottom: 1px solid var(--accent-dim); }
.ref:hover { border-bottom-color: var(--accent); }
.tag { color: var(--green); font-size: .92em; }
code { font-family: ui-monospace, "SF Mono", Menlo, monospace; font-size: .88em; background: var(--bg-alt); padding: 1px 5px; border-radius: 4px; }
pre.code {
  font-family: ui-monospace, "SF Mono", Menlo, monospace; font-size: 12.5px; line-height: 1.5;
  background: #17171e; color: #d8d8e4; padding: 14px 16px; border-radius: var(--radius);
  overflow-x: auto; margin: 10px 0;
}
blockquote { border-left: 3px solid var(--accent-dim); padding-left: 12px; color: var(--text-dim); margin: 8px 0; }
img { max-width: 100%; border-radius: var(--radius); margin: 8px 0; }
.noimg { color: var(--text-faint); font-size: .9em; font-style: italic; }
hr { border: 0; border-top: 1px solid var(--border); margin: 14px 0; }

/* search view */
.searchview .back { margin-top: 20px; }

/* not found */
.notfound { padding: 48px 0; }
.notfound h2 { font-size: 20px; margin-bottom: 8px; }
.notfound p { color: var(--text-dim); margin-bottom: 20px; }

/* footer */
.foot {
  border-top: 1px solid var(--border); padding: 18px 24px; font-size: 12.5px; color: var(--text-faint);
  text-align: center;
}

@media (max-width: 640px) {
  .top { flex-direction: column; align-items: stretch; gap: 10px; padding: 14px 16px; }
  .search-form { flex: none; }
  .main { padding: 20px 16px 48px; }
  .page-title { font-size: 23px; }
  .blk { padding-left: 12px; }
}

/* series (landing + series index) */
.series-sec { margin-top: 4px; }
.card.series { flex-direction: column; gap: 2px; align-items: flex-start; }
.card-meta { font-family: ui-monospace, "SF Mono", Menlo, monospace; font-size: 12.5px; color: var(--text-dim); }
.series-count { font-family: ui-monospace, "SF Mono", Menlo, monospace; font-size: 12.5px; color: var(--text-faint); margin: -16px 0 22px; }
.series-list { max-width: 420px; }
.card.entry .card-title.mono { font-family: ui-monospace, "SF Mono", Menlo, monospace; font-size: 14px; }

/* front page — editorial post list */
.front { margin-bottom: 40px; }
.post { padding: 20px 0 22px; border-bottom: 1px solid var(--border); }
.post:first-of-type { padding-top: 6px; }
.post:last-of-type { border-bottom: 0; }
.post-title { display: inline-block; font-size: 18px; font-weight: 700; letter-spacing: -.01em; color: var(--text); text-decoration: none; line-height: 1.3; }
.post-title:hover { color: var(--accent); }
.post-date { font-family: ui-monospace, "SF Mono", Menlo, monospace; font-size: 12px; color: var(--text-faint); margin: 6px 0 10px; }
.post-excerpt { font-size: 14.5px; color: var(--text-dim); margin-bottom: 12px; max-width: 62ch; }
.post-more { font-family: ui-monospace, "SF Mono", Menlo, monospace; font-size: 12.5px; color: var(--accent); text-decoration: none; }
.post-more:hover { text-decoration: underline; }
.post.feat .post-title { font-size: 24px; letter-spacing: -.02em; }
.post.feat .post-excerpt { font-size: 15.5px; color: var(--text); }

/* two-column landing — curated primary + rail */
.landing.two-col { display: grid; grid-template-columns: minmax(0, 1fr) 370px; gap: 64px; align-items: start; }
.rail { position: sticky; top: 76px; }
.rail .post { padding: 16px 0 18px; }
.rail .post-title { font-size: 16px; }
.rail .post.feat .post-title { font-size: 19px; }
.rail .post-excerpt { font-size: 13.5px; display: -webkit-box; -webkit-line-clamp: 2; line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.rail .post-date { margin: 4px 0 8px; }
.rail .front { margin-bottom: 34px; }
.primary .post.feat .post-title { font-size: 26px; }
@media (max-width: 940px) {
  .landing.two-col { display: block; }
  .rail { position: static; }
  .rail .post-excerpt { display: block; -webkit-line-clamp: unset; line-clamp: unset; overflow: visible; }
  .primary { margin-bottom: 40px; }
}