/* Renergy content-article stylesheet. Built from PageMakingInstruction/templates/tw-content.css, retoned to the live site palette (renergy-shared.css) and the MatterSQ face so article pages sit inside the real site shell without fighting the nav or footer. Load order in : renergy-shared.css then tw-content.css Article body typography is scoped to .tw-article so the Webflow nav and footer keep their own rules. Component classes (.answer, .tbl, .faq and so on) are global because renergy-shared.css defines none of those names. Every rule traces to a course lecture. Citations inline. */ :root { --tw-ink: #101512; --tw-ink-soft: #59645e; --tw-ink-faint: #758079; --tw-line: #d8e2dd; --tw-bg: #fff; --tw-bg-soft: #f8f8f3; --tw-accent: #14663d; /* --green-dark on the live site */ --tw-accent-bright: #00b259; /* --renergy-green */ --tw-dark: #001a0d; /* --green-darkest */ --tw-warn: #8a4b0b; --tw-warn-bg: #fff6ec; --tw-page: 80rem; /* page container, same as .cs-container on the case studies */ --tw-measure: 52rem; /* reading measure for prose inside that container */ --tw-radius: .6rem; } /* --- Article body [L195: sans-serif, 12pt minimum, 1.5x line height] --- */ .tw-article { color: var(--tw-ink); font-family: MatterSQ, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif; font-size: 1.0625rem; line-height: 1.65; } /* Page container. Same geometry as `.cs-container` + `.cs-section` on the case study pages: 80rem cap, 5% side padding. Prose inside it is capped at a readable measure and centred; tables, figures and callouts break out wider so the data has room. */ .wrap, .wrap-wide { width: 100%; max-width: var(--tw-page); margin: 0 auto; padding: 0 5%; } /* Doubled class keeps these ahead of the element rules below (.tw-article p and friends) which would otherwise reset margin-left to 0 and kill the centring. */ .tw-article.tw-article > * { max-width: var(--tw-measure); margin-right: auto; margin-left: auto; } .tw-article.tw-article > h1 { max-width: 46rem; } .tw-article.tw-article > .tbl, .tw-article.tw-article > figure, .tw-article.tw-article > .evidence, .tw-article.tw-article > .fact, .tw-article.tw-article > .cta { max-width: 64rem; } @media screen and (max-width: 1100px) { .tw-article.tw-article > * { max-width: 100%; } } /* --- Breadcrumbs: visible navigation UI [L128] --- */ .crumbs { padding: 2rem 0 0; color: var(--tw-ink-faint); font-size: .875rem; } .crumbs ol { display: flex; flex-wrap: wrap; gap: .35rem; margin: 0; padding: 0; list-style: none; } .crumbs li::after { content: "/"; margin-left: .35rem; color: var(--tw-line); } .crumbs li:last-child::after { content: ""; } .crumbs a { color: var(--tw-accent); text-decoration: none; } .crumbs a:hover { text-decoration: underline; } /* --- Headings. Real tags only, never faked with CSS [L83] --- */ .tw-article h1 { margin: .6em 0 .35em; font-size: clamp(2.25rem, 5vw, 3.5rem); font-weight: 500; letter-spacing: -.035em; line-height: 1.06; } .tw-article h2 { margin: 2.2em 0 .5em; font-size: clamp(1.5rem, 3vw, 2rem); font-weight: 500; letter-spacing: -.02em; line-height: 1.2; } .tw-article h3 { margin: 1.8em 0 .4em; font-size: 1.2rem; font-weight: 600; line-height: 1.3; } .tw-article h4 { margin: 1.5em 0 .3em; font-size: 1.0625rem; font-weight: 600; } .tw-article p { margin: 0 0 1.05em; } /* 1-3 sentences, six maximum [L90, L195] */ .tw-article ul, .tw-article ol { margin: 0 0 1.2em; padding-left: 1.3em; } .tw-article li { margin: .35em 0; } .tw-article strong { font-weight: 700; } /* signals key terms to AI [L104] */ .tw-article a { color: var(--tw-accent); text-decoration: underline; text-underline-offset: 2px; } .tw-article a.btn, .tw-article a.btn:hover { text-decoration: none; } .tw-article a:hover { text-decoration-thickness: 2px; } .tw-article blockquote { margin: 0 0 1.6em; padding: .2rem 0 .2rem 1.25rem; border-left: 3px solid var(--tw-accent-bright); color: var(--tw-ink); font-size: 1.1rem; line-height: 1.55; } .tw-article blockquote p { margin-bottom: .5em; } .tw-article blockquote cite { color: var(--tw-ink-faint); font-size: .8rem; font-style: normal; font-weight: 700; letter-spacing: .06em; text-transform: uppercase; } /* --- THE ANSWER BLOCK, inverted pyramid [L103]. Sits immediately under the H1, before any introduction. The single most important structural element on the page. --- */ .answer { margin: 0 0 2.5em; padding: 1.5rem 1.6rem; border-left: 4px solid var(--tw-accent-bright); border-radius: 0 var(--tw-radius) var(--tw-radius) 0; background: var(--tw-bg-soft); } .answer > :first-child { margin-top: 0; } .answer > :last-child { margin-bottom: 0; } .answer .lede { font-size: 1.2rem; font-weight: 600; line-height: 1.45; } .answer--urgent { border-left-color: var(--tw-warn); background: var(--tw-warn-bg); } /* --- Tables. Comparison data is "a goldmine for any AI model" [L104]. The wrapper is what stops the page body scrolling sideways on a phone. --- */ .tbl { margin: 0 0 1.8em; overflow-x: auto; border: 1px solid var(--tw-line); border-radius: var(--tw-radius); background: #fff; } .tbl table { width: 100%; border-collapse: collapse; font-size: .95rem; } .tbl caption { padding: .75rem .9rem; border-bottom: 1px solid var(--tw-line); color: var(--tw-ink-soft); font-size: .85rem; text-align: left; } .tbl th, .tbl td { padding: .65rem .9rem; border-bottom: 1px solid var(--tw-line); text-align: left; vertical-align: top; } .tbl thead th { background: var(--tw-bg-soft); font-size: .8rem; font-weight: 700; letter-spacing: .04em; text-transform: uppercase; } .tbl tbody tr:last-child td { border-bottom: 0; } .tbl tbody tr.is-marked td { background: #f2fbf6; font-weight: 600; } .tbl .num { font-variant-numeric: tabular-nums; } /* --- Images. width and height attributes are mandatory in the HTML [L147]. These rules keep them responsive without reintroducing shift. --- */ .tw-article img { max-width: 100%; height: auto; display: block; } .tw-article figure { margin: 0 0 1.6em; } .tw-article figcaption { margin-top: .6em; color: var(--tw-ink-soft); font-size: .85rem; } /* --- Key-fact callout: real numbers, with their source --- */ .fact { margin: 0 0 1.8em; padding: 1.1rem 1.25rem; border: 1px solid var(--tw-line); border-radius: var(--tw-radius); background: #fff; } .fact .label { margin: 0 0 .35em; color: var(--tw-ink-faint); font-size: .72rem; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; } .fact .big { margin: 0 0 .2em; color: var(--tw-accent); font-size: 1.9rem; font-weight: 600; line-height: 1.1; } .fact cite { display: block; margin-top: .5em; color: var(--tw-ink-faint); font-size: .8rem; font-style: normal; } /* --- Data-evidence block. The real temperature curve. This is the moat [L25, L107] --- */ .evidence { margin: 0 0 2em; padding: 1.4rem 1.5rem; border: 1px solid var(--tw-line); border-left: 4px solid var(--tw-accent); border-radius: 0 var(--tw-radius) var(--tw-radius) 0; background: #fff; } .evidence h3 { margin-top: 0; } .evidence > :last-child { margin-bottom: 0; } /* --- FAQ. Marked up with FAQPage schema in [L105]. Text must be visible in the HTML, not hidden behind JS [L131]. --- */ .faq { margin: 0 0 2em; } .faq details { padding: .9rem 0; border-bottom: 1px solid var(--tw-line); } .faq summary { cursor: pointer; font-size: 1.0625rem; font-weight: 600; list-style: none; } .faq summary::-webkit-details-marker { display: none; } .faq summary::before { display: inline-block; width: 1.2em; color: var(--tw-accent-bright); content: "+"; font-weight: 700; } .faq details[open] summary::before { content: "\2212"; } .faq details > div { padding: .6em 0 0 1.2em; } .faq details > div p:last-child { margin-bottom: 0; } /* --- Homework series: hub kicker, prev/next, tutorial TOC --- */ .series-kicker { margin: -0.6em 0 1.6em; padding: .85rem 1rem; border-left: 4px solid var(--tw-accent); background: var(--tw-bg-soft); color: var(--tw-ink-soft); font-size: .98rem; } .series-kicker a { font-weight: 600; } .series-pager { display: grid; grid-template-columns: 1fr auto 1fr; gap: .8rem; align-items: stretch; margin: 2.4em 0 0; } .series-pager a { display: flex; flex-direction: column; justify-content: center; padding: 1rem 1.1rem; border: 1px solid var(--tw-line); border-radius: var(--tw-radius); background: #fff; text-decoration: none; color: inherit; } .series-pager a:hover { border-color: var(--tw-accent); } .series-pager-dir { color: var(--tw-ink-faint); font-size: .75rem; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; } .series-pager-name { margin-top: .25rem; font-weight: 600; } .series-pager-prev { text-align: left; } .series-pager-next { text-align: right; grid-column: 3; } .series-pager-hub { align-items: center; justify-content: center; color: var(--tw-accent); font-weight: 700; font-size: .9rem; } .series-pager:not(:has(.series-pager-prev)):not(:has(.series-pager-hub)) { grid-template-columns: 1fr; } .series-pager:not(:has(.series-pager-prev)):not(:has(.series-pager-hub)) .series-pager-next { grid-column: 1; text-align: left; } .series-toc { margin: 0 0 2em; padding: 0; list-style: none; counter-reset: none; } .series-toc li { margin: 0 0 1.1rem; padding: 1.2rem 1.3rem; border: 1px solid var(--tw-line); border-radius: var(--tw-radius); background: #fff; } .series-toc h3 { margin: 0 0 .4rem; font-size: 1.15rem; } .series-toc p { margin: 0 0 .5rem; } .series-toc p:last-child { margin-bottom: 0; } @media screen and (max-width: 767px) { .series-pager { grid-template-columns: 1fr; } .series-pager-next, .series-pager-prev, .series-pager-hub { grid-column: 1; text-align: left; } } /* --- Internal link cluster: pillar and spoke linking [L100, L128] --- */ .related { margin: 2.6em 0; padding: 1.5rem 1.6rem; border-radius: var(--tw-radius); background: var(--tw-bg-soft); } .related h2 { margin-top: 0; font-size: 1.2rem; } .related ul { margin: 0; padding-left: 1.2em; } /* --- E-E-A-T footer block [L98, L99] --- */ .eeat { margin-top: 3.5em; padding: 1.8rem 0 3rem; border-top: 1px solid var(--tw-line); color: var(--tw-ink-soft); font-size: .95rem; } .eeat .author { display: flex; gap: .9rem; align-items: flex-start; margin-bottom: 1.2em; } .eeat .author img { flex: 0 0 auto; border-radius: 50%; } .eeat .sources { margin-top: 1.2em; } .eeat .sources li { font-size: .875rem; } .updated { margin: 0 0 1.6em; color: var(--tw-ink-faint); font-size: .875rem; } /* --- CTA. Below the fold, never above interactive content [L147, L200] --- */ .cta { margin: 2.6em 0; padding: 1.75rem; border-radius: var(--tw-radius); background: var(--tw-dark); color: #fff; } .cta h2 { margin-top: 0; color: #fff; } .cta p { color: #c6d3cd; } .btn { display: inline-block; text-decoration: none; padding: .8rem 1.4rem; border-radius: var(--tw-radius); background: var(--tw-accent-bright); color: #001a0d; font-weight: 700; text-decoration: none; } .btn:hover { background: #00c964; } /* --- Article hero strip, shared with the gallery pages --- */ .tw-hero { padding: 6.5rem 5% 2.75rem; background: radial-gradient(circle at 85% 20%, rgba(0, 178, 89, .16), transparent 30%), var(--tw-dark); color: #fff; } .tw-hero-inner { width: 100%; max-width: 80rem; margin: 0 auto; } .tw-hero .crumbs { padding: 0; margin-bottom: 2.5rem; color: #aebeb6; } .tw-hero .crumbs a { color: var(--tw-accent-bright); } .tw-hero .crumbs li::after { color: #45564d; } .tw-eyebrow { margin-bottom: 1rem; color: var(--tw-accent-bright); font-size: .8rem; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; } @media (prefers-reduced-motion: no-preference) { html { scroll-behavior: smooth; } } @media screen and (max-width: 767px) { .tw-hero { padding: 5rem 5% 2.25rem; } }