/* ROBODAN aligned header 20261030 */
#rd-site-header{position:relative!important;top:auto!important;width:100%!important;margin:0!important;padding:0!important;border:0!important;border-bottom:1px solid #dedfd2!important;background:#fffdf7!important;box-shadow:none!important}
#rd-static-header,#rd-site-header .rd-shell-inner{box-sizing:border-box!important;display:flex!important;align-items:center!important;justify-content:space-between!important;gap:24px!important;width:100%!important;max-width:1440px!important;min-height:112px!important;margin:0 auto!important;padding:20px 32px!important;flex-wrap:nowrap!important;font-family:'Hiragino Kaku Gothic ProN','Yu Gothic',sans-serif!important;line-height:1.9!important}
#rd-static-header{border:0!important;border-bottom:1px solid #dedfd2!important;background:#fffdf7!important}
#rd-site-header .rd-shell-inner>p{display:none!important}
#rd-static-header .brand,#rd-site-header .rd-shell-brand{display:block!important;flex:0 0 auto!important;min-width:0!important;margin:0!important;padding:0!important;font-size:14px!important;font-weight:900!important;line-height:1.25!important;letter-spacing:0!important;text-decoration:none!important;color:#353a30!important}
#rd-static-header .brand img,#rd-site-header .rd-shell-brand img{display:inline-block!important;width:108px!important;height:auto!important;max-width:none!important;margin:0!important;vertical-align:middle!important}
#rd-static-header .brand span,#rd-site-header .rd-shell-brand span{display:inline!important;margin:0 0 0 10px!important;font-size:23px!important;font-weight:700!important;letter-spacing:.06em!important;color:#006c82!important;vertical-align:middle!important}
#rd-static-header .brand small,#rd-site-header .rd-shell-brand small{display:block!important;margin:7px 0 0!important;font-size:9px!important;line-height:1.5!important;font-weight:500!important;letter-spacing:.08em!important;color:#6d7066!important}
#rd-static-header #site-nav,#rd-site-header #rd-shell-nav{display:flex!important;align-items:center!important;gap:16px!important;width:auto!important;margin:0!important;padding:0!important;font-size:13px!important;line-height:1.8!important;font-weight:700!important}
#rd-static-header #site-nav>a,#rd-site-header #rd-shell-nav>a{display:inline-flex!important;align-items:center!important;justify-content:center!important;gap:6px!important;min-height:44px!important;margin:0!important;padding:0!important;border:0!important;white-space:nowrap!important;text-decoration:none!important;color:#353a30!important}
#rd-static-header #site-nav>a[aria-current=page],#rd-site-header #rd-shell-nav>a[aria-current=page]{color:#006c82!important;text-decoration:underline!important;text-underline-offset:6px!important;background:transparent!important}
#rd-static-header #site-nav>a.pill,#rd-site-header #rd-shell-nav>a.rd-shell-cta{min-height:48px!important;padding:10px 20px!important;background:#b52c70!important;color:white!important;border-radius:999px!important;font-size:13px!important;line-height:1.8!important}
#rd-static-header #site-nav svg,#rd-site-header #rd-shell-nav svg{width:17px!important;height:17px!important;flex:none!important;fill:none!important;stroke:currentColor!important;stroke-width:1.7!important}
#rd-static-header .menu-toggle,#rd-site-header #rd-menu-toggle{display:none!important}
@media(max-width:1180px){
#rd-static-header,#rd-site-header .rd-shell-inner{flex-wrap:wrap!important;gap:12px!important;padding:16px 24px!important;min-height:100px!important}
#rd-static-header .menu-toggle,#rd-site-header #rd-menu-toggle{display:inline-flex!important;align-items:center!important;justify-content:center!important;min-height:44px!important;margin:0 0 0 auto!important;padding:8px 12px!important;border:1px solid #c9d5cc!important;border-radius:8px!important;background:#fffdf7!important;color:#353a30!important;font:600 13px/1.5 sans-serif!important;cursor:pointer!important}
#rd-static-header #site-nav,#rd-site-header #rd-shell-nav{display:none!important;width:100%!important;flex-direction:column!important;align-items:stretch!important;gap:0!important}
#rd-static-header #site-nav.is-open,#rd-static-header #site-nav.open,#rd-static-header:has(.menu-toggle[aria-expanded=true]) #site-nav,#rd-site-header #rd-shell-nav.is-open{display:flex!important}
#rd-static-header #site-nav>a,#rd-site-header #rd-shell-nav>a{justify-content:flex-start!important;padding:10px 8px!important;border-bottom:1px solid #e4e7df!important;white-space:normal!important}
#rd-static-header #site-nav>a.pill,#rd-site-header #rd-shell-nav>a.rd-shell-cta{justify-content:center!important;margin-top:10px!important}
}
@media(max-width:600px){#rd-static-header,#rd-site-header .rd-shell-inner{padding:14px 18px!important;min-height:96px!important;gap:8px!important}#rd-static-header .brand img,#rd-site-header .rd-shell-brand img{width:92px!important}#rd-static-header .brand span,#rd-site-header .rd-shell-brand span{font-size:20px!important}#rd-static-header .brand small,#rd-site-header .rd-shell-brand small{font-size:8px!important}}
/* END ROBODAN aligned header */
/* Quiet contents, visible introduction */
.reading.section{padding-top:38px}.subhero{padding-bottom:6px}.subhero h1{margin-top:18px;margin-bottom:20px}
details.page-toc{padding:0!important;margin:24px 0 32px!important;background:transparent!important;border:1px solid #dce2d9;border-radius:8px!important;font-size:14px}
details.page-toc>summary{min-height:48px;padding:10px 16px;cursor:pointer;font-size:14px;font-weight:600;color:#526b50;list-style:none;display:flex;align-items:center;justify-content:space-between;gap:16px}
details.page-toc>summary::-webkit-details-marker{display:none}details.page-toc>summary::after{content:'＋';font-size:20px}details.page-toc[open]>summary::after{content:'−'}
details.page-toc ul{margin:0!important;padding:0 16px 14px 36px!important}details.page-toc a{min-height:44px;padding:8px 0!important}
details.page-toc>summary:focus-visible{outline:3px solid #006c82;outline-offset:3px}
@media(max-width:600px){.reading.section{padding-top:24px}.subhero h1{margin:14px 0 18px;font-size:28px}.reading>.archive-photo:first-of-type{margin:20px 0}.subhero{padding-bottom:0}}
@media(min-width:801px){.hero>.photo .caption{top:24px;bottom:auto;left:32px;right:auto;max-width:calc(100% - 64px);transform:none;border-radius:8px}}

/* Preserve every block in the supplied EV3 screenshot. */
img.ev3-screen-image,.material-grid img.ev3-screen-image,.ev3-program-screen img.ev3-screen-image{display:block;width:100%!important;height:auto!important;aspect-ratio:auto!important;object-fit:contain!important;object-position:center!important;border-radius:8px;background:#fff}
.ev3-screen-zoom{font-size:12px;margin:8px 0!important}.ev3-screen-zoom a{display:inline-block;min-height:44px;padding:8px 0;text-decoration:underline;text-underline-offset:4px}