/* Blog reading theme — mirrors the landing palette (public/index.html):
   ink background, Inter body, EB Garamond display, teal accent.
   Standalone stylesheet: the blog never loads app styles.css. */

:root {
  --ink: #0a0a0a;
  --paper: #f7f5f0;
  --pencil: #8a847a;
  --dim: #b4b4b8;
  --teal: #3ed2a7;
  --hairline: rgba(255, 255, 255, 0.09);
  --sans: 'Inter', -apple-system, 'Segoe UI', sans-serif;
  --serif: 'EB Garamond', Georgia, serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

body {
  background: var(--ink);
  color: var(--dim);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--teal); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ── nav ── */
.bnav {
  display: flex; align-items: center; justify-content: space-between;
  max-width: min(67.5rem, calc(100vw - 2rem)); margin: 0 auto; padding: 20px 24px;
}
.bnav .brand {
  font-family: var(--serif); font-style: italic; font-size: 22px;
  color: var(--paper);
}
.bnav nav { display: flex; align-items: center; gap: 22px; }
.bnav nav a { color: var(--dim); font-size: 14px; }
.bnav nav a[aria-current] { color: var(--paper); }
.bnav .cta {
  color: var(--ink); background: var(--teal); border-radius: 999px;
  padding: 10px 18px; font-weight: 600;
}
.bnav .cta:hover { text-decoration: none; filter: brightness(1.08); }

/* ── article layout: sticky TOC | article | newsletter ── */
.article-wrap {
  display: grid;
  grid-template-columns: 230px minmax(0, 720px) 270px;
  gap: 44px;
  max-width: min(83.75rem, calc(100vw - 2rem));
  margin: 0 auto;
  padding: 40px 24px 80px;
  align-items: start;
}
.toc-aside, .nl-aside { position: sticky; top: 28px; }

.toc .toc-title {
  color: var(--paper); font-size: 12px; font-weight: 600;
  text-transform: uppercase; letter-spacing: 0.08em; margin-bottom: 12px;
}
.toc ul { list-style: none; padding: 0; margin: 0; }
.toc li { margin: 0; }
.toc a {
  display: block; color: var(--pencil); font-size: 13.5px; line-height: 1.4;
  padding: 6px 0 6px 14px; border-left: 2px solid var(--hairline);
}
.toc a:hover { color: var(--dim); text-decoration: none; }
.toc a.on { color: var(--teal); border-left-color: var(--teal); }

.nl-card {
  border: 1px solid var(--hairline); border-radius: 14px; padding: 22px 20px;
}
.nl-title { color: var(--paper); font-weight: 600; margin-bottom: 6px; }
.nl-sub { color: var(--pencil); font-size: 13.5px; line-height: 1.55; margin-bottom: 14px; }
.nl-form input[type="email"] {
  width: 100%; background: rgba(255, 255, 255, 0.04); color: var(--paper);
  border: 1px solid var(--hairline); border-radius: 9px;
  padding: 11px 12px; font: inherit; font-size: 14px; margin-bottom: 10px;
}
.nl-form input[type="email"]:focus { outline: none; border-color: var(--teal); }
.nl-form button {
  width: 100%; background: var(--teal); color: var(--ink); border: 0;
  border-radius: 999px; padding: 11px 0; font: inherit; font-size: 14px;
  font-weight: 600; cursor: pointer; min-height: 44px;
}
.nl-form button:hover { filter: brightness(1.08); }
.nl-form button:disabled { opacity: 0.75; cursor: default; }
.nl-form .nl-msg { font-size: 13px; color: var(--teal); margin: 8px 0 0; min-height: 1em; }
.nl-hp { position: absolute; left: -9999px; opacity: 0; height: 0; width: 0; }
.nl-inline { display: none; }

@media (max-width: 1140px) {
  .article-wrap { grid-template-columns: 220px minmax(0, 1fr); }
  .nl-aside { display: none; }
  .nl-inline { display: block; margin-top: 36px; max-width: 420px; }
}
@media (max-width: 880px) {
  .article-wrap { grid-template-columns: minmax(0, 1fr); }
  .toc-aside { display: none; }
}

/* ── article ── */
.article { max-width: 720px; margin: 0 auto; padding: 0; min-width: 0; }
.article .crumbs { font-size: 13px; margin-bottom: 24px; }
.article h1 {
  font-family: var(--serif); font-weight: 500; color: var(--paper);
  font-size: clamp(34px, 6vw, 52px); line-height: 1.12; letter-spacing: -0.01em;
}
.article .meta { color: var(--pencil); font-size: 13px; margin: 14px 0 36px; }
.article h2 {
  font-family: var(--serif); font-weight: 500; color: var(--paper);
  font-size: clamp(24px, 4vw, 32px); line-height: 1.2; margin: 44px 0 14px;
}
.article h3 { color: var(--paper); font-size: 18px; margin: 30px 0 10px; }
.article p, .article li { margin-bottom: 14px; }
.article ul, .article ol { padding-left: 24px; margin-bottom: 16px; }
.article strong { color: var(--paper); font-weight: 600; }
.article mark {
  background: rgba(62, 210, 167, 0.16);
  color: var(--paper);
  padding: 1px 5px;
  border-radius: 4px;
}
::selection { background: rgba(62, 210, 167, 0.35); color: var(--paper); }
.article blockquote {
  border-left: 2px solid var(--teal);
  padding: 4px 0 4px 18px; margin: 22px 0; color: var(--paper);
}
.article blockquote p { margin-bottom: 0; }
.article code {
  font-family: ui-monospace, 'SF Mono', Menlo, Consolas, monospace;
  font-size: 0.9em; background: rgba(255, 255, 255, 0.06);
  border-radius: 4px; padding: 1px 5px;
}
.article hr { border: 0; border-top: 1px solid var(--hairline); margin: 36px 0; }

/* tables scroll inside their own box on small screens */
.article table {
  width: 100%; border-collapse: collapse; margin: 22px 0; font-size: 15px;
  display: block; overflow-x: auto;
}
.article th, .article td {
  text-align: left; padding: 10px 14px; border-bottom: 1px solid var(--hairline);
  min-width: 120px;
}
.article th { color: var(--paper); font-weight: 600; }

/* ── CTA block ── */
.cta-block {
  margin-top: 56px; padding: 30px 26px;
  border: 1px solid var(--hairline); border-radius: 14px;
}
.cta-block h2 { margin-top: 0; }
.cta-block .cta {
  display: inline-block; color: var(--ink); background: var(--teal);
  border-radius: 999px; padding: 12px 22px; font-weight: 600; margin-right: 14px;
}
.cta-block .cta:hover { text-decoration: none; filter: brightness(1.08); }
.cta-block .ghost {
  display: inline-block; color: var(--teal); padding: 12px 4px;
}

/* ── index ── */
.blog-index { max-width: 860px; margin: 0 auto; padding: 48px 24px 80px; }
.blog-index h1 {
  font-family: var(--serif); font-weight: 500; font-style: italic;
  color: var(--paper); font-size: clamp(38px, 7vw, 60px);
}
.blog-index .lede { color: var(--pencil); max-width: 56ch; margin: 12px 0 44px; }
.cards { list-style: none; padding: 0; }
.cards .card {
  display: block; padding: 24px 22px; margin: 0 -22px 8px;
  border-radius: 14px; border: 1px solid transparent; color: inherit;
}
.cards .card:hover {
  text-decoration: none; border-color: var(--hairline);
  background: rgba(255, 255, 255, 0.02);
}
.cards h2 {
  font-family: var(--serif); font-weight: 500; color: var(--paper);
  font-size: 26px; line-height: 1.25;
}
.cards p { color: var(--dim); margin: 8px 0 10px; max-width: 68ch; }
.cards .meta { color: var(--pencil); font-size: 13px; }

/* ── footer ── */
.bfoot {
  display: flex; flex-wrap: wrap; gap: 10px; justify-content: space-between;
  max-width: 1080px; margin: 0 auto; padding: 26px 24px 40px;
  border-top: 1px solid var(--hairline);
  color: var(--pencil); font-size: 13px;
}
.bfoot a { color: var(--pencil); }

@media (max-width: 520px) {
  body { font-size: 16px; }
  .bnav nav { gap: 14px; }
  .cards .card { margin: 0 0 8px; padding: 20px 16px; }
}