@import url('https://fonts.googleapis.com/css2?family=Lora:ital,wght@0,500;0,600;0,700;1,400&family=Public+Sans:wght@400;500;600&family=IBM+Plex+Mono:wght@400;500&display=swap');

:root {
  --bg: #f6f6f3;
  --surface: #ffffff;
  --surface-2: #eef0ea;
  --text: #1a1f2b;
  --text-dim: #565f6d;
  --accent: #1f3a5f;
  --accent-soft: #e4e9f0;
  --accent-2: #8a6a34;
  --border: #dfe1da;
  --shadow: 0 1px 0 rgba(26,31,43,0.04);
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #12151c;
    --surface: #1a1e27;
    --surface-2: #20242e;
    --text: #e9eaec;
    --text-dim: #a1a8b5;
    --accent: #7fa0c9;
    --accent-soft: #202c3d;
    --accent-2: #cf9f55;
    --border: #2a2e38;
    --shadow: 0 1px 0 rgba(0,0,0,0.3);
  }
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Public Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  line-height: 1.65;
  margin: 0;
  padding-inline: 20px;
}

.wrap { max-width: 720px; margin: 0 auto; }

a { color: var(--accent); text-decoration-thickness: 1.5px; text-underline-offset: 3px; }
a:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 2px; }

header.site {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 10px 20px;
  padding-block: 26px 20px;
  border-bottom: 1px solid var(--border);
  margin-block-end: 40px;
}

.logo {
  font-family: 'Lora', serif;
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--text);
  text-decoration: none;
  display: flex;
  align-items: baseline;
  gap: 8px;
}
.logo span.mark {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.62rem;
  font-weight: 500;
  color: var(--accent-2);
  border: 1px solid var(--accent-2);
  padding: 1px 6px;
  border-radius: 3px;
  letter-spacing: 0.04em;
}

nav.site-nav { display: flex; gap: 20px; font-family: 'IBM Plex Mono', monospace; font-size: 0.8rem; }
nav.site-nav a { color: var(--text-dim); text-decoration: none; }
nav.site-nav a:hover { color: var(--accent); }

.hero { margin-block-end: 48px; }
.hero .kicker {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.76rem;
  color: var(--accent-2);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-block-end: 12px;
}
.hero h1 {
  font-family: 'Lora', serif;
  font-weight: 600;
  font-size: clamp(1.7rem, 4.6vw, 2.3rem);
  line-height: 1.2;
  margin: 0 0 14px;
  max-width: 20ch;
}
.hero p { color: var(--text-dim); max-width: 56ch; font-size: 1.02rem; }

h2.section-title {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-dim);
  margin: 40px 0 18px;
  padding-block-end: 10px;
  border-bottom: 1px solid var(--border);
}
h2.section-title:first-of-type { margin-top: 0; }

.posts { display: flex; flex-direction: column; gap: 14px; margin-block-end: 20px; }

a.post-card {
  display: block;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 6px;
  box-shadow: var(--shadow);
  padding: 18px 20px;
  text-decoration: none;
  color: var(--text);
}
a.post-card:hover { border-color: var(--accent); }

.post-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  margin-block-end: 8px;
  flex-wrap: wrap;
}

.post-meta {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.74rem;
  color: var(--text-dim);
  white-space: nowrap;
}

.post-title { font-family: 'Lora', serif; font-weight: 600; font-size: 1.15rem; line-height: 1.35; }

.post-excerpt { color: var(--text-dim); font-size: 0.94rem; margin: 0; }

.tag {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.7rem;
  color: var(--accent-2);
  background: var(--accent-soft);
  padding: 2px 8px;
  border-radius: 3px;
}

/* post page */
.breadcrumb {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.78rem;
  color: var(--text-dim);
  text-decoration: none;
  display: inline-block;
  margin-block-end: 24px;
}
.breadcrumb:hover { color: var(--accent); }

article header.post-header { margin-block-end: 32px; }
article header.post-header .tag { margin-block-end: 14px; display: inline-block; }
article h1.post-title-lg {
  font-family: 'Lora', serif;
  font-weight: 600;
  font-size: clamp(1.6rem, 4.4vw, 2.1rem);
  line-height: 1.25;
  margin: 10px 0 14px;
}
.byline {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.78rem;
  color: var(--text-dim);
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

article.post-body { max-width: 66ch; }
article.post-body h2 {
  font-family: 'Lora', serif;
  font-weight: 600;
  font-size: 1.25rem;
  margin: 34px 0 12px;
}
article.post-body p { margin: 0 0 16px; }
article.post-body ul, article.post-body ol { margin: 0 0 16px; padding-left: 1.3em; }
article.post-body li { margin-bottom: 8px; }
article.post-body strong { color: var(--text); }

.disclaimer {
  background: var(--surface-2);
  border-left: 3px solid var(--accent-2);
  border-radius: 0 6px 6px 0;
  padding: 14px 18px;
  font-size: 0.88rem;
  color: var(--text-dim);
  margin: 36px 0 24px;
}

.cta {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 22px;
  margin-block: 24px 40px;
  box-shadow: var(--shadow);
}
.cta h3 { font-family: 'Lora', serif; margin: 0 0 8px; font-size: 1.05rem; }
.cta p { color: var(--text-dim); margin: 0 0 14px; font-size: 0.94rem; }
.cta-row { display: flex; gap: 10px; flex-wrap: wrap; }
.btn {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.8rem;
  text-decoration: none;
  padding: 9px 16px;
  border-radius: 5px;
  display: inline-block;
}
.btn.primary { background: var(--accent); color: #fff; }
.btn.ghost { border: 1px solid var(--border); color: var(--text); }

footer {
  border-top: 1px solid var(--border);
  padding: 22px 0 36px;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.76rem;
  color: var(--text-dim);
}
footer a { color: var(--text-dim); }
footer a:hover { color: var(--accent); }

@media (max-width: 480px) {
  .post-top { flex-direction: column; align-items: flex-start; gap: 6px; }
}