:root{color-scheme:dark;--bg:#0c1015;--panel:#161d24;--line:#2b363e;--ink:#eef4f3;--muted:#acbdbd;--mint:#5cf0c7;font-family:'Avenir Next',-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;color:var(--ink);background:var(--bg)}*{box-sizing:border-box}body{margin:0}a{color:inherit;text-decoration:none}button{font:inherit;cursor:pointer}img{display:block;max-width:100%;height:auto}p{color:var(--muted);line-height:1.65;margin:0 0 18px}h1,h2,h3{font-weight:600;letter-spacing:-.035em;line-height:1.15;margin:0 0 14px}h1{font-size:clamp(38px,4.5vw,64px)}h1 span{color:var(--mint)}h2{font-size:27px}h3{font-size:21px}a:focus-visible,button:focus-visible,summary:focus-visible{outline:3px solid var(--mint);outline-offset:4px}h1:focus,h2:focus{outline:none}.skip{position:fixed;top:8px;left:8px;z-index:9;transform:translateY(-150%);padding:14px;background:var(--mint);color:#0b241c}.skip:focus{transform:none}.masthead{max-width:1600px;margin:auto;padding:22px 32px;display:flex;align-items:center;justify-content:space-between;gap:18px;border-bottom:1px solid var(--line)}.brand{display:flex;gap:13px;align-items:center;font-size:22px;font-weight:650;letter-spacing:-.04em}.brand small{display:block;font-size:10px;font-weight:500;letter-spacing:.16em;color:var(--muted);margin-top:3px}.header-contact{font-size:13px;min-height:44px;display:flex;align-items:center;color:var(--mint)}.shell{max-width:1600px;margin:auto;display:grid;grid-template-columns:210px minmax(0,1fr)}.sidebar{border-right:1px solid var(--line);background:#11171d}.sidebar nav{position:sticky;top:0;padding:24px 14px;max-height:100dvh;overflow-y:auto}.nav-caption,.nav-note{font-size:10px;letter-spacing:.1em;margin:0 10px 14px}.nav-note{font-size:11px;letter-spacing:0;line-height:1.6;margin:20px 10px 0}.sidebar a{display:flex;align-items:center;gap:11px;padding:10px 12px;min-height:46px;border-radius:9px;margin-bottom:3px;color:var(--muted);font-size:13px}.sidebar a:hover{background:#1b252c;color:var(--ink)}.sidebar a[aria-current=page]{background:var(--mint);color:#0b241c;font-weight:650}.sidebar svg{width:19px;height:19px;flex-shrink:0}.section-toggle{display:none}main{min-width:0;padding:38px clamp(22px,3vw,48px) 0}.view{scroll-margin-top:25px}.view[hidden]{display:none!important}.view-head{margin-bottom:30px}.eyebrow{font-size:10px;font-weight:600;letter-spacing:.16em;color:var(--mint);margin-bottom:15px}.lead{font-size:17px;max-width:690px;line-height:1.65}.spotlight{border:1px solid var(--line);border-radius:18px;overflow:hidden;display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,1fr);background:var(--panel)}.spotlight>img{width:100%;height:100%;min-height:320px;object-fit:cover}.spot-copy{padding:30px;display:flex;flex-direction:column;align-items:flex-start;justify-content:center}.spot-copy h2{font-size:38px;margin-bottom:8px}.author{font-size:14px}.chips{display:flex;flex-wrap:wrap;gap:7px;margin:0 0 18px}.chips span,.badge{display:inline-block;border:1px solid #40534f;border-radius:6px;padding:6px 9px;font-size:11px;color:var(--muted);line-height:1.45}.button{display:inline-flex;align-items:center;justify-content:center;gap:18px;background:var(--mint);color:#0b241c;font-size:13px;font-weight:650;min-height:46px;padding:13px 18px;border-radius:9px;text-align:center}.button:hover{background:#8af8d9}.secondary{background:var(--panel);color:var(--ink);border:1px solid #425159}.secondary:hover{background:#26323b}.text-link{display:inline-flex;align-items:center;min-height:44px;color:var(--mint);font-size:14px}.principles{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;margin:34px 0}.principles article{padding-top:18px;border-top:1px solid var(--line)}.principles p{font-size:13px}.principles .eyebrow{font-size:10px;margin-bottom:12px}.panel{background:var(--panel);border:1px solid var(--line);border-radius:16px;padding:26px}.hardware{scroll-margin-top:25px}.parts{margin:20px 0 0}.parts>div{display:grid;grid-template-columns:140px minmax(0,1fr);gap:18px;padding:13px 0;border-top:1px solid var(--line)}dt{color:var(--muted);font-size:12px}dd{margin:0;display:flex;gap:10px;justify-content:space-between;font-size:14px;line-height:1.5}dd span{color:var(--mint);white-space:nowrap}.fine{font-size:12px;margin:18px 0 0}.section-heading{display:flex;justify-content:space-between;align-items:center;gap:15px;margin:40px 0 20px}.section-heading h2{margin:0}.section-heading .eyebrow{margin-bottom:10px}.build-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;align-items:start}.build-card{background:var(--panel);border:1px solid var(--line);border-radius:15px;overflow:hidden}.build-card>img{width:100%;aspect-ratio:16/9;object-fit:cover}.card-copy{padding:18px}.card-copy .eyebrow{font-size:9px}.card-copy h3{font-size:20px;margin:12px 0 8px}.card-copy p{font-size:12px}.card-copy details{font-size:13px}.card-copy summary{cursor:pointer;color:var(--mint);min-height:44px;padding:12px 0;line-height:1.4}.card-copy details p{margin:10px 0 0}.sharing{margin-top:24px}.sharing h2{font-size:24px}.sharing p{font-size:14px;max-width:750px}.companion-callout{display:flex;align-items:center;justify-content:space-between;gap:24px;padding:35px 0;margin-top:20px;border-top:1px solid var(--line)}.companion-callout h2{font-size:27px}.companion-callout p{margin-bottom:8px}.capability-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;margin:26px 0}.capability-grid h2{font-size:21px}.capability-grid p{font-size:14px;margin:0}.scope{margin:25px 0}.scope p{max-width:740px}.companion-photo{display:grid;grid-template-columns:1fr 1fr;gap:26px;align-items:center;padding:24px;background:var(--panel);border:1px solid var(--line);border-radius:16px}.companion-photo img{border-radius:10px;width:100%}.companion-photo p{font-size:14px}footer{border-top:1px solid var(--line);padding:25px 0;display:flex;align-items:center;flex-wrap:wrap;gap:12px 24px;margin-top:36px;font-size:12px;color:var(--muted)}footer a{min-height:44px;display:inline-flex;align-items:center;color:var(--mint)}footer span{margin-left:auto;font-size:11px}
@media(min-width:700px) and (max-width:1050px){.shell{grid-template-columns:185px minmax(0,1fr)}main{padding:28px 22px 0}.spotlight{grid-template-columns:1fr}.spotlight>img{min-height:0;max-height:350px;aspect-ratio:16/9}.spot-copy{padding:24px}.build-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.principles,.capability-grid{grid-template-columns:1fr;gap:14px}.principles article{padding-top:14px}.principles p{margin-bottom:0}.companion-photo{grid-template-columns:1fr}.companion-callout{align-items:flex-start;flex-direction:column}.sidebar a{padding:10px 8px;gap:9px;font-size:12px}}
@media(max-width:699px){.masthead{padding:16px 18px}.brand{font-size:20px}.brand img{width:36px;height:36px}.header-contact{font-size:12px}.shell{display:block}.sidebar{position:sticky;top:0;z-index:5;border-right:0;border-bottom:1px solid var(--line)}.section-toggle{display:flex;align-items:center;justify-content:space-between;width:100%;min-height:52px;padding:13px 20px;background:#161d24;border:0;color:var(--ink);text-align:left;font-size:14px}.section-toggle #current-section{color:var(--mint);margin-left:6px;font-size:12px}.toggle-symbol{font-size:24px}.sidebar nav{position:static;max-height:calc(100dvh - 65px);display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:5px;padding:12px}.js .sidebar nav:not(.is-open){display:none}.sidebar a{margin:0;min-height:48px;font-size:12px;padding:10px;gap:8px}.nav-caption,.nav-note{grid-column:1/-1}.nav-caption{margin:2px 8px 6px}.nav-note{margin:9px 8px 4px}main{padding:27px 18px 0}.view-head{margin-bottom:24px}h1{font-size:42px}.lead{font-size:15px}.view-head .eyebrow{font-size:9px;letter-spacing:.12em}.spotlight{grid-template-columns:1fr}.spotlight>img{min-height:0;aspect-ratio:16/9}.spot-copy{padding:22px}.spot-copy h2{font-size:32px}.spot-copy p{font-size:14px}.principles,.capability-grid{grid-template-columns:1fr;gap:15px}.principles{margin:25px 0}.principles p{margin-bottom:0}.panel{padding:20px}.parts>div{grid-template-columns:1fr;gap:5px}h2{font-size:25px}.section-heading{align-items:flex-start;flex-direction:column}.build-grid{grid-template-columns:1fr;gap:20px}.card-copy h3{font-size:23px}.card-copy p{font-size:14px}.companion-callout{align-items:flex-start;flex-direction:column}.companion-photo{grid-template-columns:1fr;padding:20px;gap:18px}.scope p{font-size:14px}footer{gap:8px 22px}footer span{margin:0;flex-basis:100%}.hardware,.view,#public-hangar{scroll-margin-top:70px}.wide-only{display:none}}
@media(prefers-reduced-motion:no-preference){a,button{transition:background-color .15s ease,color .15s ease}}
/* Rotor Ledger updates */
.signup{margin-top:28px;scroll-margin-top:80px;max-width:900px}.signup a,.privacy-page article a{color:var(--mint);text-decoration:underline;text-underline-offset:3px}.signup-intro{max-width:640px}.signup .formkit-form{background:transparent!important;border:0!important;max-width:none!important;width:100%!important;margin:0!important;padding:0!important;font-family:inherit!important}.signup .formkit-background,.signup .formkit-header{display:none!important}.signup .formkit-form>div[data-style]{padding:0!important}.signup .formkit-subheader{color:var(--muted)!important;font-size:15px!important;text-align:left!important;margin:0 0 18px!important}.signup .formkit-guarantee{color:var(--muted)!important;font-size:12px!important;text-align:left!important}.signup .formkit-fields{display:flex!important;gap:12px!important;margin:0!important}.signup .formkit-field{flex:1!important;margin:0!important;min-width:0!important}.signup .formkit-input{background:var(--bg)!important;color:var(--ink)!important;border:1px solid #71858b!important;min-height:48px!important;font-size:16px!important;border-radius:9px!important;width:100%!important}.signup .formkit-input::placeholder{color:#b8c8c8!important;opacity:1}.signup .formkit-submit{background:var(--mint)!important;color:#0b241c!important;border-radius:9px!important;min-height:48px!important;font-weight:650!important;margin:0!important;flex:0 0 auto!important}.signup input:focus-visible{outline:3px solid var(--mint);outline-offset:3px}.signup .formkit-powered-by-convertkit-container{text-align:left!important}.signup .formkit-alert{font-size:15px!important;line-height:1.5!important}.confirmation{border-left:3px solid var(--mint);padding:14px 18px;margin-bottom:20px;background:#19312a}.confirmation p{margin:8px 0 0}.privacy-page{max-width:860px;margin:0 auto;padding:42px 24px}.privacy-page article section{margin:30px 0}.privacy-page h2{font-size:24px}.privacy-page li{color:var(--muted);line-height:1.7;margin-bottom:8px}.privacy-page a{overflow-wrap:anywhere}@media(max-width:699px){.signup .formkit-fields{flex-direction:column!important}.signup .formkit-submit{width:100%!important}.privacy-page{padding:28px 18px}.signup .formkit-form{min-width:0!important}}
.signup .formkit-powered-by-convertkit{background-color:#fff!important;color:#161d24!important;border-radius:5px!important;padding:0!important}