/* resources.html — Engineering Resources & Downloads */
:root {
  --rs-bg: #f8fafc;
  --rs-card-bg: #ffffff;
  --rs-border: #e2e8f0;
  --rs-text: #0f172a;
  --rs-muted: #475569;
  --rs-accent: #2563eb;
  --rs-accent-soft: #eff6ff;
}
body.resources-page {
  font-family: "Space Grotesk", system-ui, -apple-system, sans-serif;
  color: var(--rs-text);
  background: #ffffff;
  margin: 0;
}
.rs-shell { max-width: 1080px; margin: 0 auto; padding: 0 24px; }
.rs-hero { background: var(--rs-bg); border-bottom: 1px solid var(--rs-border); padding: 48px 0 40px; }
.rs-hero .breadcrumb { font-size: 0.85rem; color: var(--rs-muted); margin: 0 0 18px; }
.rs-hero .breadcrumb a { color: var(--rs-muted); text-decoration: none; }
.rs-hero .breadcrumb a:hover { color: var(--rs-accent); }
.rs-hero .eyebrow { text-transform: uppercase; letter-spacing: 0.12em; font-size: 0.78rem; color: var(--rs-accent); margin: 0 0 8px; font-weight: 600; }
.rs-hero h1 { font-size: clamp(1.8rem, 4vw, 2.6rem); margin: 0 0 14px; line-height: 1.15; }
.rs-lead-hero { font-size: 1.05rem; color: var(--rs-muted); max-width: 60ch; margin: 0; line-height: 1.6; }
.rs-section { padding: 56px 0; }
.rs-section.rs-alt { background: var(--rs-bg); border-top: 1px solid var(--rs-border); border-bottom: 1px solid var(--rs-border); }
.rs-heading h2 { font-size: 1.5rem; margin: 0 0 8px; }
.rs-heading p { color: var(--rs-muted); margin: 0 0 28px; max-width: 70ch; line-height: 1.6; }
.rs-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 16px; }
.rs-card { background: var(--rs-card-bg); border: 1px solid var(--rs-border); border-radius: 12px; padding: 20px 22px; }
.rs-card h3 { font-size: 1rem; margin: 0 0 12px; color: var(--rs-accent); }
.rs-card ul { list-style: none; margin: 0; padding: 0; }
.rs-card li { padding: 8px 0; border-top: 1px solid var(--rs-border); display: flex; flex-direction: column; gap: 2px; }
.rs-card li:first-child { border-top: none; }
.rs-card li strong { font-size: 0.92rem; font-weight: 600; }
.rs-card li span { font-size: 0.85rem; color: var(--rs-muted); line-height: 1.5; }
.rs-figure { margin: 32px 0 0; text-align: center; }
.rs-figure img { max-width: 100%; height: auto; border: 1px solid var(--rs-border); border-radius: 12px; background: var(--rs-bg); }
.rs-callout { background: var(--rs-accent-soft); border-left: 4px solid var(--rs-accent); border-radius: 0 12px 12px 0; padding: 18px 22px; margin: 0 0 24px; }
.rs-callout .rs-formula { display: block; font-family: "IBM Plex Mono", monospace; font-size: 1rem; font-weight: 500; margin-bottom: 10px; white-space: pre-wrap; }
.rs-callout p { margin: 0; font-size: 0.9rem; color: var(--rs-muted); line-height: 1.55; }
.rs-callout.rs-example { background: #fffbeb; border-left-color: #d97706; }
.rs-callout.rs-example p { color: #78350f; }
.rs-tablewrap { overflow-x: auto; border: 1px solid var(--rs-border); border-radius: 12px; margin: 0 0 24px; }
.rs-table { width: 100%; border-collapse: collapse; background: var(--rs-card-bg); font-size: 0.9rem; }
.rs-table th { text-align: start; background: var(--rs-bg); padding: 12px 16px; font-weight: 600; border-bottom: 1px solid var(--rs-border); white-space: nowrap; }
.rs-table td { padding: 11px 16px; border-bottom: 1px solid var(--rs-border); vertical-align: top; }
.rs-table tbody tr:last-child td { border-bottom: none; }
.rs-table code { font-family: "IBM Plex Mono", monospace; font-size: 0.85rem; color: var(--rs-accent); }
.rs-dlgrid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 16px; }
.rs-dl { display: flex; align-items: center; gap: 14px; background: var(--rs-card-bg); border: 1px solid var(--rs-border); border-radius: 12px; padding: 18px 20px; text-decoration: none; color: var(--rs-text); transition: border-color 0.15s ease, box-shadow 0.15s ease; }
.rs-dl:hover { border-color: var(--rs-accent); box-shadow: 0 2px 10px rgba(37, 99, 235, 0.12); }
.rs-dl-icon { font-family: "IBM Plex Mono", monospace; font-size: 0.75rem; font-weight: 600; color: var(--rs-accent); background: var(--rs-accent-soft); border-radius: 8px; padding: 8px 10px; }
.rs-dl strong { font-size: 0.95rem; flex: 1; }
.rs-dl > span:last-child { font-size: 0.85rem; color: var(--rs-accent); white-space: nowrap; }
.rs-closing { padding: 56px 0 64px; }
.rs-closing h2 { font-size: 1.4rem; margin: 0 0 12px; }
.rs-closing p { color: var(--rs-muted); max-width: 75ch; line-height: 1.65; }
.rs-closing-links { margin-top: 18px; }
.rs-more { display: inline-block; color: var(--rs-accent); font-weight: 600; text-decoration: none; border-bottom: 2px solid var(--rs-accent-soft); }
.rs-more:hover { border-bottom-color: var(--rs-accent); }
@media (max-width: 640px) {
  .rs-section { padding: 40px 0; }
  .rs-hero { padding: 36px 0 32px; }
}