/* Origin Intelligence Blog — shared stylesheet. * * Editorial aesthetic from the v3-meta draft: serif body, warm cream * paper, dark ink, amber accent tag, purple highlight, single-column * long-form layout. Kept intentionally simple so every post is a * fully self-contained HTML file that can be authored by hand or * generated from markdown without needing a build step. * * Usage: every post links this file with a relative path and then * adds its own (title, meta, OG, JSON-LD BlogPosting). See * template.html for the minimum boilerplate to copy for new posts. */ :root { --ink: #121118; --paper: #f9f7f1; --muted: #6a6572; --accent: #7a3aa8; --line: #e7e2d9; --amber: #c08a2f; --warm: #c47a2c; --code-bg: #faf8f2; } * { box-sizing: border-box; } html, body { margin: 0; background: var(--paper); color: var(--ink); font: 17px/1.62 ui-serif, Georgia, "Iowan Old Style", "Apple Garamond", serif; -webkit-font-smoothing: antialiased; } main { max-width: 760px; margin: 0 auto; padding: 48px 28px 120px; } /* Blog masthead — shows on every post */ .masthead { display: flex; align-items: center; justify-content: space-between; padding: 14px 0 10px; margin-bottom: 26px; border-bottom: 1px solid var(--line); font-family: -apple-system, ui-sans-serif, system-ui, "Segoe UI", Helvetica, Arial; font-size: .88rem; } .masthead a { color: var(--muted); text-decoration: none; } .masthead .brand { font-weight: 700; color: var(--ink); letter-spacing: -.01em; } .masthead .brand:hover { color: var(--accent); } .masthead nav { display: flex; gap: 18px; } .masthead nav a:hover { color: var(--ink); } /* Typography */ h1 { font-size: 2.1rem; line-height: 1.18; margin: .2em 0 .35em; letter-spacing: -.015em; font-weight: 500; } h2 { font-size: 1.32rem; margin: 2.3em 0 .5em; font-weight: 600; font-family: -apple-system, ui-sans-serif, system-ui; letter-spacing: -.005em; } h3 { font-size: 1.05rem; margin: 1.8em 0 .4em; font-weight: 600; font-family: -apple-system, ui-sans-serif, system-ui; } p { margin: .7em 0; } .muted { color: var(--muted); font-style: italic; } a { color: var(--accent); text-decoration: underline; text-underline-offset: 3px; } a:hover { color: var(--ink); } /* Tag pills (amber or purple) */ .tag { display: inline-block; font-size: .72rem; letter-spacing: .12em; text-transform: uppercase; color: var(--amber); border: 1px solid var(--amber); padding: 3px 8px; border-radius: 999px; margin-bottom: 10px; font-family: -apple-system, ui-sans-serif, system-ui; font-style: normal; } .tag.accent { color: var(--accent); border-color: var(--accent); } /* Post metadata — date, author, reading time */ .post-meta { font-family: -apple-system, ui-sans-serif, system-ui; font-size: .84rem; color: var(--muted); margin-bottom: 24px; display: flex; gap: 14px; flex-wrap: wrap; } .post-meta time, .post-meta .author, .post-meta .read-time { font-style: normal; } /* Hero image block */ .hero { border: 1px solid var(--line); border-radius: 14px; overflow: hidden; margin: 22px 0 28px; } .hero img { display: block; width: 100%; height: auto; } .hero figcaption { padding: 10px 16px; font-family: -apple-system, ui-sans-serif, system-ui; font-size: .78rem; color: var(--muted); background: #fff; border-top: 1px solid var(--line); } /* Pull-quote */ .pull-quote { font-size: 1.2rem; line-height: 1.45; border-left: 3px solid var(--accent); padding: 4px 0 4px 20px; margin: 1.8em 0; color: var(--ink); font-style: italic; } .pull-quote cite { display: block; margin-top: 8px; font-size: .85rem; color: var(--muted); font-style: normal; font-family: -apple-system, ui-sans-serif, system-ui; } /* 4-frame animated infographic (adapted from v3-meta zoom frames) */ .infographic { position: relative; border: 1px solid var(--line); border-radius: 14px; background: #fff; padding: 28px; margin: 22px 0 28px; min-height: 260px; overflow: hidden; font-family: -apple-system, ui-sans-serif, system-ui; } .infographic-title { font-size: .72rem; letter-spacing: .14em; color: var(--muted); text-transform: uppercase; margin-bottom: 18px; font-style: normal; } .frames { position: relative; height: 180px; } .frame { position: absolute; inset: 0; opacity: 0; animation: cycle 16s infinite; transform-origin: center; } .frame:nth-child(1) { animation-delay: 0s; } .frame:nth-child(2) { animation-delay: 4s; } .frame:nth-child(3) { animation-delay: 8s; } .frame:nth-child(4) { animation-delay: 12s; } @keyframes cycle { 0%, 3% { opacity: 0; transform: scale(.97); } 7%, 22% { opacity: 1; transform: scale(1); } 28%, 100% { opacity: 0; transform: scale(1.02); } } .frame .big { font-size: 1.9rem; font-weight: 600; letter-spacing: -.015em; line-height: 1.08; margin-bottom: 10px; color: var(--ink); } .frame .big .accent { color: var(--accent); } .frame .subline { color: var(--muted); font-size: .95rem; max-width: 560px; } .dots { display: flex; gap: 6px; position: absolute; bottom: 18px; left: 28px; } .dots span { width: 6px; height: 6px; border-radius: 50%; background: var(--line); animation: dot 16s infinite; } .dots span:nth-child(2) { animation-delay: 4s; } .dots span:nth-child(3) { animation-delay: 8s; } .dots span:nth-child(4) { animation-delay: 12s; } @keyframes dot { 0%, 3%, 28%, 100% { background: var(--line); } 7%, 22% { background: var(--ink); } } /* Plain-English stack table */ .stack { display: grid; grid-template-columns: 180px 1fr; gap: 0; border: 1px solid var(--line); border-radius: 14px; overflow: hidden; margin: 18px 0 24px; font-family: -apple-system, ui-sans-serif, system-ui; } .stack > div { padding: 14px 18px; border-bottom: 1px solid var(--line); font-size: .92rem; } .stack > div:nth-last-child(-n+2) { border-bottom: none; } .stack .k { background: #f5f3ea; font-size: .76rem; letter-spacing: .08em; text-transform: uppercase; color: var(--muted); font-weight: 600; } /* Monospace code block */ pre, code { font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace; font-size: .88em; } pre { background: var(--code-bg); border: 1px solid var(--line); border-radius: 8px; padding: 14px 16px; overflow-x: auto; line-height: 1.55; } p code, li code { background: var(--code-bg); padding: 1px 5px; border-radius: 3px; border: 1px solid var(--line); } /* Footer */ .post-footer { margin-top: 56px; padding-top: 22px; border-top: 1px solid var(--line); font-family: -apple-system, ui-sans-serif, system-ui; font-size: .88rem; color: var(--muted); } .post-footer a { color: var(--accent); } .post-footer p { margin: .4em 0; } /* Blog index — list of posts */ .post-list { list-style: none; padding: 0; margin: 30px 0; } .post-list li { border-bottom: 1px solid var(--line); padding: 22px 0; } .post-list li:last-child { border-bottom: none; } .post-list h2 { margin: 0 0 4px; font-family: ui-serif, Georgia, serif; font-size: 1.35rem; font-weight: 500; letter-spacing: -.01em; } .post-list h2 a { color: var(--ink); text-decoration: none; } .post-list h2 a:hover { color: var(--accent); } .post-list .excerpt { margin: 6px 0 4px; color: var(--ink); } .post-list .post-meta { margin: 6px 0 0; } @media (max-width: 560px) { main { padding: 28px 20px 80px; } h1 { font-size: 1.75rem; } h2 { font-size: 1.2rem; } .masthead { flex-direction: column; align-items: flex-start; gap: 8px; } .stack { grid-template-columns: 1fr; } .stack > div { border-bottom: 1px solid var(--line); } .stack .k { background: transparent; padding-bottom: 2px; } }