/* Crawlable navigation uses ordinary links and works without JavaScript. */
.product-directory { padding: 48px 0; background: #F4FBF8; color: #0F172A; }
.product-directory .container { max-width: 1180px; margin: 0 auto; padding: 0 24px; }
.product-directory h2 { font-family: "Space Grotesk", sans-serif; font-size: clamp(24px, 4vw, 36px); line-height: 1.2; margin: 0 0 12px; }
.product-directory p { color: #475569; margin: 0 0 24px; line-height: 1.6; }
.product-directory nav { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 12px; }
.product-directory a { padding: 14px 16px; border: 1px solid #D5E4DF; border-radius: 10px; background: white; color: #0F172A; text-decoration: none; font-weight: 600; }
.product-directory a:hover, .product-directory a:focus-visible { border-color: #1C9691; color: #157A76; }
.blog-start { margin: 24px auto 0; max-width: 640px; padding: 20px; background: white; border: 1px solid #D5E4DF; border-radius: 12px; text-align: left; }
.blog-start h2 { margin: 0 0 8px; font-size: 20px; }
.blog-start p { margin: 0; line-height: 1.6; }
.blog-start a { color: #157A76; text-decoration: underline; text-underline-offset: 3px; }
@media (max-width: 800px) { .product-directory nav { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 420px) { .product-directory nav { grid-template-columns: 1fr; } }
#fundamentals, #product-directory-title { scroll-margin-top: 120px; }