/* Blog (made by tools/seo/build_blog.py): built on the site's own tokens. Paper mode by default for reading; the mode toggle still works. */
body.blog-page { overflow-x: clip; }
.blog-hero { padding-top: clamp(24px, 4vw, 48px); }
.blog-hand { display: block; font-size: 2rem; line-height: 1; margin-bottom: 8px; transform: rotate(-2deg); }
.blog-hero h1.slab { font-size: clamp(2rem, 5vw, 3.2rem); }

/* filter chips: pills, no outlines */
.blog-chips { display: flex; flex-wrap: wrap; justify-content: center; gap: 8px; margin: 8px 0 clamp(20px, 3vw, 32px); }
.chip {
  min-height: 40px; padding: 0 16px; border-radius: var(--r-pill);
  background: var(--card); color: var(--ink2); box-shadow: var(--shadow-1);
  font: 500 0.88rem/1 Geist, system-ui, sans-serif;
  transition: transform var(--spring-slab-ms) var(--spring-slab), background-color var(--dur-small), color var(--dur-small);
}
.chip:hover { color: var(--ink); }
.chip:active { transform: scale(0.96); }
.chip.is-on { background: var(--ink); color: var(--paper); }

/* post grid: 1 column on phones, 2 on tablets, 3 on desktop */
.post-grid { display: grid; grid-template-columns: 1fr; gap: 16px; }
@media (min-width: 640px) { .post-grid { grid-template-columns: repeat(2, 1fr); gap: 20px; } }
@media (min-width: 1000px) { .post-grid { grid-template-columns: repeat(3, 1fr); gap: 24px; } }
.post-card { background: var(--card); border-radius: var(--radius-card); box-shadow: var(--shadow-1); min-width: 0; overflow: hidden;
  transition: transform var(--spring-soft-ms) var(--spring-soft), box-shadow var(--dur-medium); }
.post-card[hidden] { display: none; }
.post-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-2); }
.post-link { display: flex; flex-direction: column; height: 100%; text-decoration: none; color: inherit; padding: 12px 12px 4px; }
.post-media { aspect-ratio: 16 / 9; border-radius: var(--radius-media); overflow: hidden; background: var(--surface-3); }
.post-media img { width: 100%; height: 100%; object-fit: cover; display: block; }
.post-media-empty { display: grid; place-items: center; color: var(--muted); font-size: 0.8rem; letter-spacing: 0.06em; }
.post-body { padding: 16px 8px 12px; display: flex; flex-direction: column; gap: 8px; flex: 1; }
.post-kicker { margin: 0; font-size: 0.72rem; letter-spacing: 0.04em; color: var(--muted); }
.post-card h2 { font-size: var(--fs-h3); font-weight: 700; letter-spacing: -0.02em; line-height: 1.25; margin: 0; overflow-wrap: anywhere; }
.post-desc { margin: 0; color: var(--ink2); font-size: 0.92rem; line-height: 1.5; }
.blog-empty, .blog-feed { text-align: center; color: var(--muted); margin-top: 24px; }
.blog-feed a { color: var(--ink2); }

/* article */
.post-wrap { max-width: 760px; padding-top: clamp(20px, 3vw, 40px); padding-bottom: clamp(24px, 4vw, 48px); }
.crumbs { font-size: 0.75rem; color: var(--muted); margin-bottom: 20px; }
.crumbs a { color: var(--ink2); text-decoration: none; }
.crumbs a:hover { color: var(--ink); }
.post-head h1 { font-size: clamp(1.9rem, 5.2vw, 3rem); font-weight: 800; letter-spacing: -0.04em; line-height: 1.08; margin: 10px 0 16px; overflow-wrap: anywhere; text-wrap: balance; }
.post-lede { font-size: clamp(1.05rem, 2.2vw, 1.25rem); line-height: 1.5; color: var(--ink2); margin: 0 0 14px; }
.post-by { font-size: 0.88rem; color: var(--muted); margin: 0 0 28px; }
.post-by a { color: var(--ink2); }
.post-hero { margin: 0 0 28px; }
.post-hero img { width: 100%; height: auto; border-radius: var(--radius-media); display: block; box-shadow: var(--shadow-1); }

.toc { background: var(--card); border-radius: var(--radius-media); box-shadow: var(--shadow-1); padding: 14px 18px; margin: 0 0 32px; }
.toc summary { cursor: pointer; font-size: 0.75rem; letter-spacing: 0.06em; color: var(--muted); list-style: none; }
.toc summary::-webkit-details-marker { display: none; }
.toc ol { margin: 10px 0 2px; padding-left: 1.2em; display: grid; gap: 6px; }
.toc a { color: var(--ink2); text-decoration: none; }
.toc a:hover { color: var(--ink); text-decoration: underline; }

.prose { font-size: 1.0625rem; line-height: 1.75; color: var(--ink); }
.prose > * + * { margin-top: 1.1em; }
.prose h2 { font-size: var(--fs-h2); font-weight: 800; letter-spacing: -0.03em; line-height: 1.2; margin-top: 2.2em; scroll-margin-top: calc(var(--header-h) + 16px); }
.prose h3 { font-size: 1.2rem; font-weight: 700; letter-spacing: -0.02em; line-height: 1.3; margin-top: 1.8em; scroll-margin-top: calc(var(--header-h) + 16px); }
.prose h4 { font-size: 1rem; font-weight: 700; margin-top: 1.5em; }
.prose a { color: var(--signal); text-underline-offset: 3px; text-decoration-thickness: 1px; }
.prose a:hover { text-decoration-thickness: 2px; }
.prose ul, .prose ol { padding-left: 1.3em; display: grid; gap: 0.4em; }
.prose li::marker { color: var(--muted); }
.prose strong { font-weight: 700; }
.prose code { font: 500 0.88em 'Geist Mono', ui-monospace, monospace; background: var(--surface-3); padding: 0.12em 0.4em; border-radius: var(--radius-chip); overflow-wrap: anywhere; }
.prose pre { background: var(--deep); color: var(--ink); border-radius: var(--radius-media); padding: 16px 18px; overflow-x: auto; -webkit-overflow-scrolling: touch; line-height: 1.55; box-shadow: var(--shadow-1); }
.prose pre code { background: none; padding: 0; font-size: 0.85rem; overflow-wrap: normal; }
.prose img { max-width: 100%; height: auto; border-radius: var(--radius-media); box-shadow: var(--shadow-1); }
.prose figure { margin: 1.6em 0; }
.prose blockquote { margin-left: 0; padding: 4px 0 4px 18px; border-left: 3px solid var(--signal); color: var(--ink2); }
.prose hr { border: 0; height: 1px; background: var(--line-soft); margin: 2em 0; }
.table-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; border-radius: var(--radius-media); box-shadow: var(--shadow-1); background: var(--card); }
.prose table { border-collapse: collapse; width: 100%; font-size: 0.92rem; min-width: 480px; }
.prose th, .prose td { text-align: left; padding: 10px 14px; border-bottom: 1px solid var(--line-soft); vertical-align: top; }
.prose th { font: 500 0.72rem 'Geist Mono', ui-monospace, monospace; color: var(--muted); letter-spacing: 0.05em; text-transform: lowercase; }

.post-cta { background: var(--card); border-radius: var(--radius-card); box-shadow: var(--shadow-2); padding: clamp(22px, 4vw, 36px); margin-top: clamp(36px, 6vw, 56px); }
.post-cta .hand { display: block; margin: 0 0 4px; transform: rotate(-2deg); transform-origin: left; }
.post-cta h2 { font-size: var(--fs-h2); font-weight: 800; letter-spacing: -0.03em; margin: 0 0 10px; }
.post-cta p { color: var(--ink2); margin: 0 0 18px; }
.cta-row { display: flex; flex-wrap: wrap; gap: 12px; margin-bottom: 0 !important; }

.post-related { margin-top: clamp(36px, 6vw, 56px); }
.post-related h2 { font-size: var(--fs-h3); font-weight: 700; letter-spacing: -0.02em; margin: 0 0 14px; }
.rel-grid { display: grid; grid-template-columns: 1fr; gap: 12px; }
@media (min-width: 720px) { .rel-grid { grid-template-columns: repeat(3, 1fr); } }
.rel-card { display: flex; flex-direction: column; gap: 6px; padding: 16px 18px; background: var(--card); border-radius: var(--radius-media); box-shadow: var(--shadow-1); text-decoration: none; color: var(--ink); min-width: 0;
  transition: transform var(--spring-soft-ms) var(--spring-soft), box-shadow var(--dur-medium); }
.rel-card:hover { transform: translateY(-2px); box-shadow: var(--shadow-2); }
.rel-card span { font-size: 0.7rem; color: var(--muted); letter-spacing: 0.05em; }
.rel-card b { font-weight: 600; line-height: 1.3; overflow-wrap: anywhere; }

@media (prefers-reduced-motion: reduce) { .post-card, .rel-card, .chip { transition: none; } .post-card:hover, .rel-card:hover { transform: none; } }
.post-media-empty { aspect-ratio: 3 / 1; }