/*
Theme Name: Sector Foundry
Theme URI: https://www.sectorfoundry.com/
Author: Sector Foundry
Author URI: https://www.sectorfoundry.com/about/
Description: A restrained research-publication WordPress theme for Sector Foundry, focused on critical technologies, operating economics, bottlenecks, topic hubs, author credibility, and related research.
Version: 1.3.1
Requires at least: 6.4
Tested up to: 6.8
Requires PHP: 8.1
License: GNU General Public License v2 or later
License URI: https://www.gnu.org/licenses/gpl-2.0.html
Text Domain: sector-foundry
Tags: blog, news, custom-logo, custom-menu, featured-images, threaded-comments, translation-ready, wide-blocks
*/

:root {
  --sf-navy: #071f3e;
  --sf-heading: #082b56;
  --sf-blue: #0f5cad;
  --sf-accent: #1677ff;
  --sf-ink: #172033;
  --sf-muted: #667085;
  --sf-line: #dfe5ec;
  --sf-soft: #f5f7fa;
  --sf-white: #ffffff;
  --sf-success: #166534;
  --sf-warning: #92400e;
  --sf-error: #991b1b;
  --sf-info: #0c4a6e;
  --sf-radius: 6px;
  --sf-shadow: 0 14px 35px rgba(7, 31, 62, 0.08);
  --sf-content: 800px;
  --sf-wide: 1180px;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--sf-white);
  color: var(--sf-ink);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  font-size: 17px;
  line-height: 1.72;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img { max-width: 100%; height: auto; }
a { color: var(--sf-blue); text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:hover { color: var(--sf-accent); }
button, input, textarea, select { font: inherit; }
button { cursor: pointer; }

.screen-reader-text {
  border: 0; clip: rect(1px, 1px, 1px, 1px); clip-path: inset(50%);
  height: 1px; margin: -1px; overflow: hidden; padding: 0;
  position: absolute !important; width: 1px; word-wrap: normal !important;
}
.screen-reader-text:focus {
  background: #fff; clip: auto !important; clip-path: none;
  color: var(--sf-navy); display: block; font-size: 14px;
  height: auto; left: 8px; padding: 12px 16px; top: 8px; width: auto;
  z-index: 100000;
}

.sf-container { width: min(calc(100% - 40px), var(--sf-wide)); margin-inline: auto; }
.sf-content-width { width: min(calc(100% - 40px), var(--sf-content)); margin-inline: auto; }

/* Header */
.sf-site-header { background: #fff; border-bottom: 1px solid var(--sf-line); }
.sf-brand-row { min-height: 96px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.sf-brand { display: inline-flex; align-items: center; gap: 18px; min-width: 0; text-decoration: none; }
.sf-custom-logo-link { display: inline-flex; align-items: center; }
.custom-logo, .sf-brand-logo { width: auto; height: 48px; display: block; }
.sf-site-title { margin: 0; color: var(--sf-navy); font-size: 28px; font-weight: 750; letter-spacing: -0.03em; }
.sf-site-description { margin: 2px 0 0; color: var(--sf-muted); font-size: 13px; letter-spacing: 0.02em; }
.sf-header-utility { color: var(--sf-muted); font-size: 13px; text-align: right; max-width: 360px; }

.sf-nav-wrap { background: var(--sf-navy); }
.sf-nav-row { min-height: 52px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.sf-primary-nav { display: flex; align-items: center; }
.sf-menu-toggle {
  display: none; align-items: center; gap: 9px; border: 0; background: transparent;
  color: #fff; padding: 13px 0; font-weight: 700;
}
.sf-menu-toggle-bars, .sf-menu-toggle-bars::before, .sf-menu-toggle-bars::after {
  width: 20px; height: 2px; background: currentColor; display: block; position: relative;
}
.sf-menu-toggle-bars::before, .sf-menu-toggle-bars::after { content: ""; position: absolute; left: 0; }
.sf-menu-toggle-bars::before { top: -6px; }
.sf-menu-toggle-bars::after { top: 6px; }
.sf-primary-menu, .sf-primary-menu ul { list-style: none; margin: 0; padding: 0; }
.sf-primary-menu { display: flex; align-items: stretch; }
.sf-primary-menu > li { position: relative; }
.sf-primary-menu a {
  color: rgba(255,255,255,.9); display: flex; align-items: center; min-height: 52px;
  padding: 0 18px; text-decoration: none; font-size: 14px; font-weight: 700; letter-spacing: .01em;
}
.sf-primary-menu > li:first-child > a { padding-left: 0; }
.sf-primary-menu a:hover, .sf-primary-menu .current-menu-item > a, .sf-primary-menu .current-menu-ancestor > a { color: #fff; }
.sf-primary-menu .sub-menu {
  display: none; position: absolute; left: 0; top: 100%; min-width: 235px;
  background: #fff; border: 1px solid var(--sf-line); box-shadow: var(--sf-shadow); z-index: 100;
}
.sf-primary-menu li:hover > .sub-menu, .sf-primary-menu li:focus-within > .sub-menu { display: block; }
.sf-primary-menu .sub-menu a { color: var(--sf-ink); min-height: auto; padding: 11px 16px; font-weight: 650; }
.sf-primary-menu .sub-menu a:hover { background: var(--sf-soft); color: var(--sf-blue); }
.sf-header-search { display: flex; align-items: center; }
.sf-header-search .search-form { display: flex; margin: 0; }
.sf-header-search .search-field {
  width: 190px; border: 1px solid rgba(255,255,255,.26); border-right: 0;
  background: rgba(255,255,255,.08); color: #fff; padding: 8px 11px; border-radius: 4px 0 0 4px;
}
.sf-header-search .search-field::placeholder { color: rgba(255,255,255,.65); }
.sf-header-search .search-submit { border: 1px solid rgba(255,255,255,.26); background: #fff; color: var(--sf-navy); padding: 8px 12px; border-radius: 0 4px 4px 0; font-weight: 750; }

/* General layout */
.sf-main { min-height: 60vh; }
.sf-section { padding: 66px 0; }
.sf-section--soft { background: var(--sf-soft); border-block: 1px solid #edf0f4; }
.sf-section-head { display: flex; align-items: end; justify-content: space-between; gap: 24px; margin-bottom: 27px; }
.sf-section-title { margin: 0; color: var(--sf-heading); font-size: clamp(25px, 3vw, 34px); line-height: 1.15; letter-spacing: -0.035em; }
.sf-section-link { font-size: 14px; font-weight: 750; text-decoration: none; white-space: nowrap; }
.sf-eyebrow { margin: 0 0 12px; color: var(--sf-blue); font-size: 12px; font-weight: 800; letter-spacing: .14em; text-transform: uppercase; }
.sf-lead { color: #42526a; font-size: clamp(18px, 2vw, 21px); line-height: 1.65; }

/* Homepage */
.sf-hero { padding: 62px 0 50px; background: linear-gradient(180deg, #fff 0%, #f7f9fc 100%); border-bottom: 1px solid var(--sf-line); }
.sf-hero-grid { display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(320px, .95fr); gap: 54px; align-items: center; }
.sf-hero h1 { margin: 0 0 18px; color: var(--sf-navy); font-size: clamp(40px, 6vw, 68px); line-height: .98; letter-spacing: -0.055em; }
.sf-hero-copy { max-width: 660px; }
.sf-hero-copy p { margin: 0; }
.sf-hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }
.sf-button { display: inline-flex; align-items: center; justify-content: center; min-height: 44px; padding: 0 18px; border: 1px solid var(--sf-blue); border-radius: 4px; background: var(--sf-blue); color: #fff; font-size: 14px; font-weight: 800; text-decoration: none; }
.sf-button:hover { background: var(--sf-navy); border-color: var(--sf-navy); color: #fff; }
.sf-button--ghost { background: transparent; color: var(--sf-blue); }
.sf-button--ghost:hover { background: var(--sf-blue); border-color: var(--sf-blue); color: #fff; }
.sf-hero-panel { background: var(--sf-navy); color: #fff; padding: 34px; border-radius: var(--sf-radius); box-shadow: var(--sf-shadow); }
.sf-hero-panel h2 { color: #fff; font-size: 19px; margin: 0 0 20px; }
.sf-research-list { list-style: none; margin: 0; padding: 0; }
.sf-research-list li { padding: 14px 0; border-top: 1px solid rgba(255,255,255,.14); }
.sf-research-list a { color: #fff; text-decoration: none; font-weight: 700; }
.sf-research-list span { display: block; color: rgba(255,255,255,.68); font-size: 12px; margin-top: 4px; }

.sf-featured { display: grid; grid-template-columns: 1.15fr .85fr; background: #fff; border: 1px solid var(--sf-line); border-radius: var(--sf-radius); overflow: hidden; box-shadow: var(--sf-shadow); }
.sf-featured-media { min-height: 390px; background: #e9eef5; }
.sf-featured-media img { width: 100%; height: 100%; object-fit: cover; display: block; }
.sf-featured-placeholder { height: 100%; min-height: 390px; display: grid; place-items: center; background: linear-gradient(135deg, var(--sf-navy), var(--sf-blue)); color: rgba(255,255,255,.88); font-size: 20px; font-weight: 800; letter-spacing: .02em; }
.sf-featured-body { padding: clamp(30px, 5vw, 56px); display: flex; flex-direction: column; justify-content: center; }
.sf-featured-title { margin: 7px 0 14px; color: var(--sf-heading); font-size: clamp(28px, 3vw, 40px); line-height: 1.15; letter-spacing: -0.04em; }
.sf-featured-title a { color: inherit; text-decoration: none; }
.sf-featured-excerpt { color: #4a586c; margin: 0 0 20px; }
.sf-meta { display: flex; flex-wrap: wrap; gap: 10px 16px; color: var(--sf-muted); font-size: 12px; }
.sf-meta a { color: inherit; text-decoration: none; }
.sf-category-label { color: var(--sf-blue); font-size: 12px; font-weight: 850; letter-spacing: .09em; text-transform: uppercase; text-decoration: none; }

.sf-card-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 24px; }
.sf-card { background: #fff; border: 1px solid var(--sf-line); border-radius: var(--sf-radius); overflow: hidden; transition: transform .18s ease, box-shadow .18s ease; }
.sf-card:hover { transform: translateY(-2px); box-shadow: var(--sf-shadow); }
.sf-card-media { display: block; aspect-ratio: 16 / 9; background: #e9eef5; overflow: hidden; }
.sf-card-media img { width: 100%; height: 100%; object-fit: cover; transition: transform .25s ease; }
.sf-card:hover .sf-card-media img { transform: scale(1.015); }
.sf-card-placeholder { width: 100%; height: 100%; display: grid; place-items: center; padding: 18px; background: linear-gradient(135deg, #dfe7f2, #f7f9fc); color: var(--sf-heading); font-size: 12px; font-weight: 800; letter-spacing: .08em; text-align: center; text-transform: uppercase; }
.sf-card-body { padding: 22px; }
.sf-card-title { margin: 8px 0 10px; color: var(--sf-heading); font-size: 21px; line-height: 1.28; letter-spacing: -0.025em; }
.sf-card-title a { color: inherit; text-decoration: none; }
.sf-card-excerpt { margin: 0 0 16px; color: #59677a; font-size: 14px; line-height: 1.65; }
.sf-empty { padding: 28px; border: 1px dashed #cbd5e1; color: var(--sf-muted); background: #fff; }

/* Archives */
.sf-archive-header { padding: 58px 0 34px; border-bottom: 1px solid var(--sf-line); background: var(--sf-soft); }
.sf-archive-header h1 { margin: 0 0 12px; color: var(--sf-navy); font-size: clamp(34px, 5vw, 54px); line-height: 1.05; letter-spacing: -0.05em; }
.sf-archive-description { max-width: 760px; color: #4b5b70; }
.sf-archive-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 24px; }
.navigation.pagination { margin-top: 36px; }
.nav-links { display: flex; flex-wrap: wrap; gap: 8px; }
.page-numbers { min-width: 38px; height: 38px; display: inline-grid; place-items: center; border: 1px solid var(--sf-line); border-radius: 3px; text-decoration: none; }
.page-numbers.current, .page-numbers:hover { background: var(--sf-navy); border-color: var(--sf-navy); color: #fff; }

/* Single post */
.sf-article-header { padding: 58px 0 34px; background: #fff; }
.sf-article-header-inner { width: min(calc(100% - 40px), 940px); margin-inline: auto; }
.sf-article-title { margin: 9px 0 18px; color: var(--sf-navy); font-size: clamp(38px, 5vw, 62px); line-height: 1.04; letter-spacing: -0.052em; }
.sf-article-deck { margin: 0 0 20px; max-width: 800px; color: #4a586b; font-size: 20px; line-height: 1.58; }
.sf-featured-image-wide { width: min(calc(100% - 40px), 1180px); margin: 0 auto 44px; }
.sf-featured-image-wide img { width: 100%; max-height: 680px; object-fit: cover; border-radius: var(--sf-radius); display: block; }
.sf-article-layout { display: grid; grid-template-columns: minmax(0, var(--sf-content)) 250px; justify-content: center; gap: 54px; width: min(calc(100% - 40px), 1120px); margin: 0 auto; }
.sf-article-main { min-width: 0; }
.sf-article-rail { font-size: 13px; }
.sf-rail-inner { position: sticky; top: 24px; }
.sf-rail-box { border-top: 3px solid var(--sf-navy); padding-top: 16px; margin-bottom: 28px; }
.sf-rail-box h2 { margin: 0 0 12px; color: var(--sf-heading); font-size: 14px; text-transform: uppercase; letter-spacing: .07em; }
.sf-rail-list { list-style: none; margin: 0; padding: 0; }
.sf-rail-list li { padding: 9px 0; border-top: 1px solid var(--sf-line); line-height: 1.45; }
.sf-rail-list a { color: var(--sf-ink); text-decoration: none; }
.sf-rail-list a:hover { color: var(--sf-blue); }

.entry-content { min-width: 0; }
.entry-content > *:first-child { margin-top: 0; }
.entry-content p { margin: 0 0 1.35em; }
.entry-content h2 { margin: 2.25em 0 .75em; color: var(--sf-heading); font-size: clamp(27px, 3vw, 34px); line-height: 1.2; letter-spacing: -0.035em; scroll-margin-top: 24px; }
.entry-content h3 { margin: 1.8em 0 .65em; color: var(--sf-heading); font-size: 23px; line-height: 1.28; letter-spacing: -0.025em; scroll-margin-top: 24px; }
.entry-content h4 { margin: 1.5em 0 .55em; color: var(--sf-heading); font-size: 18px; }
.entry-content ul, .entry-content ol { padding-left: 1.35em; margin: 0 0 1.4em; }
.entry-content li { margin: .35em 0; }
.entry-content blockquote { margin: 2em 0; padding: 4px 0 4px 24px; border-left: 4px solid var(--sf-blue); color: #3c4a5e; font-size: 20px; }
.entry-content blockquote p:last-child { margin-bottom: 0; }
.entry-content figure { margin: 2.2em 0; }
.entry-content figcaption { margin-top: 9px; color: var(--sf-muted); font-size: 12px; line-height: 1.5; text-align: left; }
.entry-content hr { border: 0; border-top: 1px solid var(--sf-line); margin: 2.8em 0; }
.entry-content pre { overflow-x: auto; padding: 18px; background: #0d1b2e; color: #f8fafc; border-radius: 4px; }
.entry-content code { font-size: .9em; }
.entry-content table { width: 100%; border-collapse: collapse; margin: 2em 0; font-size: 14px; }
.entry-content th, .entry-content td { border: 1px solid var(--sf-line); padding: 12px 13px; text-align: left; vertical-align: top; }
.entry-content th { background: var(--sf-soft); color: var(--sf-heading); font-weight: 800; }
.entry-content tr:nth-child(even) td { background: #fbfcfd; }
.entry-content iframe { max-width: 100%; }
.entry-content .wp-block-image.alignwide, .entry-content .alignwide { width: min(1100px, calc(100vw - 40px)); max-width: none; margin-left: 50%; transform: translateX(-50%); }
.entry-content .alignfull { width: 100vw; max-width: none; margin-left: 50%; transform: translateX(-50%); }

.sf-toc { margin: 0 0 2.4em; border: 1px solid var(--sf-line); border-top: 3px solid var(--sf-blue); background: #fbfcfe; border-radius: 3px; }
.sf-toc-toggle { width: 100%; display: flex; justify-content: space-between; align-items: center; border: 0; background: transparent; padding: 16px 18px; color: var(--sf-heading); font-weight: 850; text-align: left; }
.sf-toc-toggle::after { content: "−"; font-size: 20px; }
.sf-toc.is-collapsed .sf-toc-toggle::after { content: "+"; }
.sf-toc-list { margin: 0 !important; padding: 0 20px 18px 40px !important; font-size: 14px; }
.sf-toc.is-collapsed .sf-toc-list { display: none; }
.sf-toc-list li { margin: 6px 0; }
.sf-toc-list .sf-toc-h3 { margin-left: 16px; }
.sf-toc-list a { color: #34445a; text-decoration: none; }
.sf-toc-list a:hover { color: var(--sf-blue); }

.alert-message { margin: 1.8em 0; padding: 18px 20px; border-left: 4px solid var(--sf-blue); background: #eef6ff; color: var(--sf-info); border-radius: 2px; }
.alert-message p:last-child { margin-bottom: 0; }
.alert-info { border-color: #0ea5e9; background: #f0f9ff; color: #0c4a6e; }
.alert-warning { border-color: #f59e0b; background: #fffbeb; color: var(--sf-warning); }
.alert-success { border-color: #22c55e; background: #f0fdf4; color: var(--sf-success); }
.alert-error { border-color: #ef4444; background: #fef2f2; color: var(--sf-error); }
.sf-key-takeaways { margin: 1.8em 0; padding: 22px 24px; background: var(--sf-navy); color: #fff; border-radius: var(--sf-radius); }
.sf-key-takeaways h2, .sf-key-takeaways h3 { margin-top: 0; color: #fff; }
.sf-key-takeaways a { color: #b9d8ff; }
.table-responsive { width: 100%; overflow-x: auto; -webkit-overflow-scrolling: touch; }

.sf-post-footer { margin-top: 44px; padding-top: 28px; border-top: 1px solid var(--sf-line); }
.sf-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 28px; }
.sf-tags a { padding: 5px 9px; background: var(--sf-soft); border: 1px solid var(--sf-line); color: #46566b; border-radius: 2px; font-size: 12px; text-decoration: none; }
.sf-author-box { display: grid; grid-template-columns: 86px 1fr; gap: 20px; padding: 25px; background: var(--sf-soft); border: 1px solid var(--sf-line); border-radius: var(--sf-radius); }
.sf-author-image { width: 86px; height: 86px; object-fit: cover; border-radius: 50%; }
.sf-author-box h2 { margin: 0 0 3px; color: var(--sf-heading); font-size: 20px; }
.sf-author-role { margin: 0 0 8px; color: var(--sf-blue); font-size: 12px; font-weight: 800; text-transform: uppercase; letter-spacing: .07em; }
.sf-author-bio { margin: 0; color: #526175; font-size: 14px; }
.sf-disclaimer { margin-top: 22px; padding: 16px 18px; border: 1px solid var(--sf-line); color: var(--sf-muted); font-size: 12px; background: #fff; }
.sf-related { margin-top: 54px; }
.sf-related h2 { margin-bottom: 20px; color: var(--sf-heading); font-size: 25px; }

/* Pages */
.sf-page-wrap { padding: 58px 0 72px; }
.sf-page-title { margin: 0 0 28px; color: var(--sf-navy); font-size: clamp(38px, 5vw, 58px); line-height: 1.05; letter-spacing: -0.05em; }
.sf-page { width: 100%; }
.sf-page-header { margin-bottom: 38px; }
.sf-page-header h1 { margin: 0 0 16px; color: var(--sf-navy); font-size: clamp(38px, 5vw, 58px); line-height: 1.05; letter-spacing: -0.05em; }
.sf-page-eyebrow { margin: 0 0 10px !important; color: var(--sf-blue); font-size: 12px; font-weight: 850; letter-spacing: .12em; text-transform: uppercase; }
.sf-page-lead { color: #43536a; font-size: 20px; line-height: 1.6; }
.sf-page-meta { color: var(--sf-muted); font-size: 13px; }
.sf-page-section { margin: 44px 0; }
.sf-page-section h2 { color: var(--sf-heading); }
.sf-page-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; margin: 24px 0; }
.sf-page-card { padding: 22px; border: 1px solid var(--sf-line); background: #fff; border-radius: var(--sf-radius); }
.sf-page-card h3 { margin-top: 0; }
.sf-page-note, .sf-page-alert { margin: 24px 0; padding: 20px; background: var(--sf-soft); border-left: 4px solid var(--sf-blue); }

/* Forms */
.search-form { display: flex; gap: 0; }
.search-field, .sf-contact-form input[type="text"], .sf-contact-form input[type="email"], .sf-contact-form textarea {
  width: 100%; border: 1px solid #cbd5e1; background: #fff; color: var(--sf-ink); padding: 11px 12px; border-radius: 3px;
}
.search-submit, .sf-contact-form button { border: 0; background: var(--sf-blue); color: #fff; padding: 11px 16px; border-radius: 3px; font-weight: 800; }
.sf-contact-form { display: grid; gap: 16px; margin: 24px 0; }
.sf-contact-form label { display: grid; gap: 6px; font-size: 14px; font-weight: 750; color: var(--sf-heading); }
.sf-contact-form textarea { min-height: 180px; resize: vertical; }
.sf-contact-hp { position: absolute; left: -9999px; }
.sf-form-status { padding: 14px 16px; border-left: 4px solid var(--sf-blue); background: var(--sf-soft); margin-bottom: 18px; }

/* Ads and widgets */
.sf-ad-area { margin: 28px auto; text-align: center; }
.sf-ad-area:empty { display: none; }
.sf-widget { margin-bottom: 28px; }
.sf-widget-title { margin: 0 0 12px; color: var(--sf-heading); font-size: 14px; text-transform: uppercase; letter-spacing: .07em; }
.sf-widget ul { list-style: none; padding: 0; margin: 0; }
.sf-widget li { padding: 8px 0; border-top: 1px solid var(--sf-line); }

/* Footer */
.sf-site-footer { margin-top: 72px; background: var(--sf-navy); color: rgba(255,255,255,.76); }
.sf-footer-main { padding: 48px 0 34px; display: grid; grid-template-columns: 1.3fr .7fr; gap: 60px; }
.sf-footer-brand { color: #fff; font-size: 24px; font-weight: 800; letter-spacing: -0.03em; }
.sf-footer-copy { max-width: 650px; margin: 9px 0 0; font-size: 14px; }
.sf-footer-menu { list-style: none; margin: 0; padding: 0; columns: 2; }
.sf-footer-menu li { margin: 0 0 9px; }
.sf-footer-menu a { color: rgba(255,255,255,.84); text-decoration: none; font-size: 13px; }
.sf-footer-menu a:hover { color: #fff; }
.sf-footer-bottom { padding: 18px 0; border-top: 1px solid rgba(255,255,255,.13); display: flex; justify-content: space-between; gap: 24px; font-size: 12px; }

/* Comments */
.comments-area { margin-top: 50px; padding-top: 30px; border-top: 1px solid var(--sf-line); }
.comment-list { list-style: none; padding: 0; }
.comment-body { padding: 18px 0; border-top: 1px solid var(--sf-line); }
.comment-form label { display: block; font-weight: 700; font-size: 14px; }
.comment-form input, .comment-form textarea { width: 100%; border: 1px solid #cbd5e1; padding: 10px; }
.form-submit .submit { width: auto; background: var(--sf-blue); color: #fff; border: 0; padding: 11px 16px; }

@media (max-width: 980px) {
  .sf-card-grid, .sf-archive-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .sf-article-layout { grid-template-columns: minmax(0, var(--sf-content)); }
  .sf-article-rail { display: none; }
  .sf-featured { grid-template-columns: 1fr; }
  .sf-featured-media, .sf-featured-placeholder { min-height: 330px; }
}

@media (max-width: 760px) {
  body { font-size: 16px; }
  .sf-container, .sf-content-width, .sf-article-header-inner, .sf-featured-image-wide, .sf-article-layout { width: min(calc(100% - 28px), var(--sf-wide)); }
  .sf-brand-row { min-height: 80px; }
  .custom-logo, .sf-brand-logo { height: 39px; }
  .sf-header-utility { display: none; }
  .sf-nav-row { display: block; }
  .sf-menu-toggle { display: flex; width: 100%; }
  .sf-primary-nav { display: block; }
  .sf-primary-menu { display: none; flex-direction: column; padding-bottom: 10px; }
  .sf-primary-nav.is-open .sf-primary-menu { display: flex; }
  .sf-primary-menu a, .sf-primary-menu > li:first-child > a { min-height: 44px; padding: 0; }
  .sf-primary-menu .sub-menu { display: block; position: static; min-width: 0; background: transparent; border: 0; box-shadow: none; padding-left: 16px; }
  .sf-primary-menu .sub-menu a { color: rgba(255,255,255,.76); padding: 8px 0; }
  .sf-primary-menu .sub-menu a:hover { background: transparent; color: #fff; }
  .sf-header-search { display: none; }
  .sf-hero { padding: 46px 0 38px; }
  .sf-hero-grid { grid-template-columns: 1fr; gap: 32px; }
  .sf-section { padding: 48px 0; }
  .sf-card-grid, .sf-archive-grid, .sf-page-grid { grid-template-columns: 1fr; }
  .sf-section-head { align-items: start; }
  .sf-featured-media, .sf-featured-placeholder { min-height: 230px; }
  .sf-featured-body { padding: 28px; }
  .sf-article-header { padding: 42px 0 25px; }
  .sf-article-title { font-size: clamp(34px, 11vw, 48px); }
  .sf-article-deck { font-size: 18px; }
  .entry-content table { min-width: 620px; }
  .entry-content table { display: block; overflow-x: auto; }
  .sf-author-box { grid-template-columns: 64px 1fr; padding: 20px; }
  .sf-author-image { width: 64px; height: 64px; }
  .sf-footer-main { grid-template-columns: 1fr; gap: 28px; }
  .sf-footer-bottom { flex-direction: column; }
}


/* v1.2 focused-research upgrades */
.sf-topic-section { background: #fff; }
.sf-topic-grid { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 14px; }
.sf-topic-card { display: block; min-height: 138px; padding: 20px; border: 1px solid var(--sf-line); border-top: 3px solid var(--sf-navy); border-radius: var(--sf-radius); background: #fff; text-decoration: none; transition: transform .15s ease, box-shadow .15s ease, border-color .15s ease; }
.sf-topic-card:hover { transform: translateY(-2px); border-color: #c6d2df; box-shadow: var(--sf-shadow); }
.sf-topic-card strong { display: block; color: var(--sf-heading); font-size: 16px; line-height: 1.25; }
.sf-topic-card span { display: block; margin-top: 8px; color: var(--sf-muted); font-size: 13px; line-height: 1.5; }
.sf-topic-card small { display: block; margin-top: 12px; color: var(--sf-blue); font-size: 11px; font-weight: 800; letter-spacing: .06em; text-transform: uppercase; }

.sf-topic-opportunity {
  display: grid;
  grid-template-columns: auto minmax(140px, .35fr) 1fr auto;
  align-items: center;
  gap: 14px;
  margin-top: 14px;
  padding: 15px 18px;
  border: 1px dashed #c7d1dc;
  border-radius: var(--sf-radius);
  background: #fbfcfe;
  color: inherit;
  text-decoration: none;
}
.sf-topic-opportunity:hover { border-color: #9fb1c4; background: var(--sf-soft); }
.sf-topic-opportunity-label { color: var(--sf-muted); font-size: 10px; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; white-space: nowrap; }
.sf-topic-opportunity strong { color: var(--sf-heading); font-size: 15px; }
.sf-topic-opportunity > span:not(.sf-topic-opportunity-label) { color: var(--sf-muted); font-size: 13px; line-height: 1.45; }
.sf-topic-opportunity small { color: var(--sf-blue); font-size: 11px; font-weight: 700; white-space: nowrap; }
.sf-author-name-link { color: var(--sf-heading); text-decoration: none; }
.sf-author-name-link:hover { color: var(--sf-blue); }
.sf-topic-hub-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 22px; margin-top: 28px; }
.sf-topic-hub-intro { max-width: 820px; }
.sf-topic-index { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; margin-top: 24px; }
.sf-topic-index a { padding: 18px; border: 1px solid var(--sf-line); border-radius: var(--sf-radius); background: var(--sf-soft); text-decoration: none; }
.sf-topic-index strong { display: block; color: var(--sf-heading); }
.sf-topic-index span { display: block; margin-top: 5px; color: var(--sf-muted); font-size: 13px; }
.sf-topic-index-selective { margin-top: 22px; padding-top: 18px; border-top: 1px solid var(--sf-line); }
.sf-topic-index-selective .sf-eyebrow { margin-bottom: 8px; }
.sf-topic-index-selective a { display: block; max-width: 760px; padding: 14px 16px; border: 1px dashed #c7d1dc; border-radius: var(--sf-radius); background: #fbfcfe; text-decoration: none; }
.sf-topic-index-selective strong { display: block; color: var(--sf-heading); font-size: 15px; }
.sf-topic-index-selective span { display: block; margin-top: 4px; color: var(--sf-muted); font-size: 13px; line-height: 1.5; }
.sf-source-credit { color: var(--sf-muted); font-size: 12px; }
@media (max-width: 980px) {
  .sf-topic-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .sf-topic-opportunity { grid-template-columns: 1fr; gap: 5px; }
  .sf-topic-opportunity small { white-space: normal; }
}
@media (max-width: 680px) {
  .sf-topic-grid, .sf-topic-hub-grid, .sf-topic-index { grid-template-columns: 1fr; }
}