/* Follow the visitor's system appearance; light is the default. */
:root{color-scheme:light;--page:#f5f5f7;--text:#1d1d1f;--secondary:#4b4b50;--muted:#626268;--link:#0066cc;--nav:rgba(245,245,247,.92);--card:#ffffff;--hover:#eeeeF0;--border:#d9d9df}
@media(prefers-color-scheme:dark){:root{color-scheme:dark;--page:#1d1d1f;--text:#f5f5f7;--secondary:#c7c7cc;--muted:#b0b0b6;--link:#5aafff;--nav:rgba(29,29,31,.92);--card:#28282b;--hover:#303034;--border:#45454b}}
*{box-sizing:border-box;margin:0;padding:0}body{background-color:var(--page);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,"SF Pro Display","SF Pro Text","Helvetica Neue",Arial,sans-serif;line-height:1.47059;letter-spacing:-.022em;-webkit-font-smoothing:antialiased}a{color:var(--link);text-underline-offset:4px}a:focus-visible,summary:focus-visible,video:focus-visible{outline:3px solid var(--link);outline-offset:6px}.apple-nav{min-height:44px;background:var(--nav);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border-bottom:1px solid var(--border);position:fixed;top:0;width:100%;z-index:9999}.apple-nav>div{max-width:980px;padding:0 40px;margin:auto;display:flex;justify-content:space-between;gap:20px;align-items:center}.apple-nav a{font-size:14px;min-height:44px;display:flex;align-items:center;text-decoration:none;color:var(--secondary)}.apple-nav .brand{font-weight:600;color:var(--text)}.genius-container{max-width:980px;margin:0 auto;padding:120px 40px 50px}.genius-header{text-align:center;margin-bottom:55px}.eyebrow{font-size:12px;letter-spacing:.12em;color:var(--muted);margin-bottom:18px}h1.sf-heavy{font-size:3.5rem;line-height:1.08;font-weight:700;letter-spacing:-.035em;color:var(--text);margin-bottom:20px}.sf-sub{font-size:1.5rem;color:var(--muted);font-weight:400;letter-spacing:-.009em}.genius-topics{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px;align-items:start}.topic-card{background:var(--card);border:1px solid var(--border);border-radius:18px;transition:background-color .3s ease,transform .2s cubic-bezier(.25,1,.5,1);overflow:hidden;min-width:0}.topic-card:hover{background:var(--hover);transform:scale(1.015)}.topic-card[open]:hover{transform:none}.topic-card summary{padding:30px;display:flex;align-items:flex-start;gap:20px;cursor:pointer;list-style:none;min-height:184px}.topic-card summary::-webkit-details-marker{display:none}.card-icon{color:var(--link);flex-shrink:0;margin-top:4px;font-size:14px;font-weight:500;letter-spacing:0}.card-content h2{font-size:1.35rem;font-weight:600;letter-spacing:-.011em;color:var(--text);margin-bottom:8px}.card-content p{font-size:1rem;color:var(--muted);line-height:1.5;margin-bottom:16px}.action-text{font-size:1rem;color:var(--link);font-weight:400;display:inline-block}.topic-card:hover .action-text{text-decoration:underline}.topic-card[open] .action-text>span{display:inline-block;transform:rotate(90deg)}.card-panel{border-top:1px solid var(--border);margin:0 30px;padding:24px 0 28px}.card-panel p{font-size:16px;color:var(--secondary);margin-bottom:16px}.card-panel>a{display:block;width:fit-content;padding:8px 0;text-decoration:none}.card-panel>a:hover{text-decoration:underline}.reel-card[open]{grid-column:1/-1}.reel-card[open] summary{min-height:0}.card-panel video{display:block;width:100%;aspect-ratio:16/9;border-radius:10px;background:#000}.card-panel .video-caption{font-size:14px;margin:14px 0 4px}.card-panel a.primary{border-radius:22px;background:#0071e3;color:white;padding:12px 18px;font-size:14px;text-align:center;margin-bottom:10px}.card-panel .note{font-size:12px;margin:8px 0}.contact-options{display:flex;flex-wrap:wrap;gap:24px}.contact-options a{display:inline-flex;align-items:center;min-height:44px}.experience{text-align:center;color:var(--muted);font-size:14px;margin:32px 0 46px}.experience span{color:var(--text);white-space:nowrap}footer{border-top:1px solid var(--border);padding-top:24px;display:flex;justify-content:space-between;gap:24px;font-size:14px;color:var(--muted)}footer nav{display:flex;gap:22px}footer a{display:inline-flex;align-items:center;min-height:44px;text-decoration:none}.skip{position:fixed;top:-100px;left:20px;background:white;color:black;padding:12px;z-index:10000}.skip:focus{top:4px}@media(max-width:768px){.genius-topics{grid-template-columns:1fr;gap:16px}.genius-container{padding:95px 20px 40px}.apple-nav>div{padding:0 20px}.genius-header{margin-bottom:32px}h1.sf-heavy{font-size:2.5rem}.sf-sub{font-size:1.2rem}.topic-card summary{padding:24px;min-height:154px;gap:18px}.card-panel{margin:0 24px}.experience span{display:block;margin-top:8px;white-space:normal}footer{flex-wrap:wrap}.topic-card:hover{transform:none}}@media(prefers-reduced-motion:reduce){.topic-card{transition:none;transform:none}}

.experience>a{display:inline-block;padding:8px 12px;color:inherit;text-decoration:none}.experience .experience-more{display:block;margin-top:8px;color:var(--link);font-size:14px}.experience>a:hover .experience-more{text-decoration:underline}

/* Equipment photo and responsive, accessible numbered callouts. */
.equipment-card[open]{grid-column:1/-1}.equipment-card[open] summary{min-height:0}.equipment-figure{margin:0 0 22px}.equipment-photo{position:relative;isolation:isolate}.equipment-photo img{display:block;width:100%;height:auto;border-radius:12px}.equipment-leaders{position:absolute;inset:0;width:100%;height:100%;pointer-events:none;filter:drop-shadow(0 1px 2px #000)}.equipment-leaders path{fill:none;stroke:#fff;stroke-width:3;vector-effect:non-scaling-stroke}.equipment-leaders circle{fill:#fff;stroke:#0066cc;stroke-width:3;vector-effect:non-scaling-stroke}.equipment-pin{position:absolute;display:grid;place-items:center;width:32px;height:32px;border-radius:50%;background:#0066cc;color:white;border:2px solid white;font-size:16px;font-weight:700;line-height:1;transform:translate(-50%,-50%);box-shadow:0 1px 5px #0008}.drone-pin{left:58%;top:19%}.rtk-pin{left:18.4%;top:19%}.equipment-figure figcaption{display:flex;flex-wrap:wrap;gap:14px 28px;margin-top:18px;color:var(--text);font-size:16px}.equipment-figure figcaption>span{display:grid;grid-template-columns:26px auto;column-gap:8px;align-items:center}.equipment-figure figcaption b{grid-row:1/3;display:grid;place-items:center;border-radius:50%;width:26px;height:26px;background:#0066cc;color:white;font-size:14px}.equipment-figure small{grid-column:2;color:var(--muted);font-size:14px}.card-panel .equipment-details{font-size:16px;padding:13px 22px}@media(max-width:768px){.equipment-panel{margin:0 16px}.equipment-pin{width:27px;height:27px;font-size:14px}.equipment-figure figcaption{gap:14px;font-size:14px}.equipment-figure small{font-size:12px}.equipment-figure figcaption>span{column-gap:6px}.card-panel .equipment-details{width:100%}}

.apple-nav .wordmark{display:flex;flex-direction:column;align-items:flex-start;justify-content:center;line-height:1;min-height:68px;flex-shrink:0}.wordmark>span:first-child{font-size:25px;letter-spacing:-.055em;font-weight:700}.wordmark b{color:var(--link)}.apple-nav .wordmark-sub{font-size:12px;font-weight:500;letter-spacing:.1em;margin-top:7px}.genius-container{padding-top:140px}@media(max-width:768px){.genius-container{padding-top:110px}}

.promotion-reminder[hidden]{display:none}.promotion-reminder{position:fixed;z-index:100;right:24px;bottom:max(24px,env(safe-area-inset-bottom));width:min(360px,calc(100% - 32px));padding:24px;border:1px solid var(--border);border-radius:18px;background:var(--card);color:var(--text);box-shadow:0 12px 45px #0002;animation:promotion-arrive .5s ease-out both}.promotion-close{position:absolute;top:4px;right:4px;width:44px;height:44px;background:transparent;border:0;border-radius:50%;color:var(--muted);font-family:inherit;line-height:1;cursor:pointer;font-size:26px}.promotion-close:focus-visible{outline:3px solid var(--link);outline-offset:0}.promotion-label{padding-right:20px;font-size:12px;letter-spacing:.05em;color:var(--muted);margin-bottom:10px}.promotion-message{font-size:19px;font-weight:600;line-height:1.35;padding-right:10px;margin-bottom:10px}.promotion-reminder>a{display:inline-flex;align-items:center;min-height:44px;font-size:16px;text-decoration:none}.promotion-reminder>a:hover{text-decoration:underline}.sr-announcement{position:absolute;width:1px;height:1px;overflow:hidden;clip-path:inset(50%);white-space:nowrap}@keyframes promotion-arrive{from{opacity:0;transform:translateY(24px)}to{opacity:1;transform:translateY(0)}}@media(max-width:768px){.promotion-reminder{right:16px;bottom:max(16px,env(safe-area-inset-bottom));padding:20px}}@media(prefers-reduced-motion:reduce){.promotion-reminder{animation:none}}

/* A bright, one-time entrance separates the monthly reminder from the quiet page. */
.promotion-reminder{background:#ffe600;color:#171717;border:2px solid #171717;border-radius:22px;box-shadow:0 16px 48px #0005,0 0 0 5px #ffe60033;animation:promotion-pop .75s cubic-bezier(.2,.8,.2,1) both;transform-origin:bottom right}.promotion-label{color:#383200;font-weight:800;letter-spacing:.07em}.promotion-message{font-size:26px;font-weight:800;line-height:1.15;letter-spacing:-.035em;margin:12px 0 18px}.promotion-close{color:#171717}.promotion-close:hover{background:#17171712}.promotion-reminder>a{display:flex;justify-content:center;width:100%;padding:12px 14px;border-radius:12px;background:#171717;color:#fff;font-weight:700;text-align:center}.promotion-reminder>a:hover{background:#303030}.promotion-close:focus-visible,.promotion-reminder>a:focus-visible{outline-color:#171717;outline-offset:3px}@keyframes promotion-pop{0%{opacity:0;transform:translateY(85px) scale(.8)}60%{opacity:1;transform:translateY(-12px) scale(1.035)}80%{transform:translateY(4px) scale(.99)}100%{opacity:1;transform:translateY(0) scale(1)}}@media(prefers-reduced-motion:reduce){.promotion-reminder{animation:none}}

.promotion-contact-choice>summary{display:flex;align-items:center;justify-content:space-between;gap:12px;min-height:48px;padding:12px 16px;border-radius:12px;background:#171717;color:#fff;font-size:16px;font-weight:700;cursor:pointer;list-style:none}.promotion-contact-choice>summary::-webkit-details-marker{display:none}.promotion-contact-choice>summary:hover{background:#303030}.promotion-contact-choice[open]>summary>span{transform:rotate(180deg)}.promotion-contact-options{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:12px}.promotion-contact-options a{display:flex;align-items:center;justify-content:center;min-height:48px;padding:10px 6px;border:2px solid #171717;border-radius:12px;color:#171717;font-size:16px;font-weight:700;text-align:center;text-decoration:none}.promotion-contact-options a:hover{background:#171717;color:#fff}.promotion-contact-choice>summary:focus-visible,.promotion-contact-options a:focus-visible{outline:3px solid #171717;outline-offset:3px}.promotion-reminder{max-height:calc(100dvh - 100px);overflow-y:auto}