@font-face{font-family:Urbanist;src:url('/assets/Urbanist-Variable.ttf') format('truetype');font-weight:100 900;font-display:swap}
:root{font-family:Urbanist,Segoe UI,sans-serif;color:#0e121b;background:#b4d2ec;--orange:#ff5a16;--ink:#0e121b;--muted:#525866;--panel:#f6fcff;--night:#171a1c;scroll-behavior:smooth;scroll-padding-top:24px}*{box-sizing:border-box}body{margin:0;font-size:17px;line-height:1.65}a{color:inherit;text-decoration:none}button,input,select{font:inherit}button,a,input,select,summary{-webkit-tap-highlight-color:transparent}button{cursor:pointer}button:disabled{cursor:default;opacity:.5}[hidden]{display:none!important}::selection{background:#ffcfb8}h1,h2,h3,p{margin:0}button{border:0}a,button{transition:background .2s,color .2s,box-shadow .2s}a:hover{color:#ad3600}.skip{position:fixed;top:10px;left:10px;z-index:100;padding:12px 20px;background:white;transform:translateY(-150%)}.guide-atmosphere{position:fixed;inset:0;z-index:-1;overflow:hidden;pointer-events:none;background:linear-gradient(#eaf3fb,#b4d2ec)}.guide-atmosphere>div{position:absolute;inset:0;background-size:cover;background-position:center}.guide-day{background-image:url('/assets/sky.png');opacity:.9}.guide-sunset{background-image:linear-gradient(#efa98655,#ce8f7866),url('/assets/descent-warm-sky.png');opacity:var(--sunset,0)}.guide-night{background:linear-gradient(#171a1cd9,#101213),radial-gradient(ellipse at top,#626c7d,transparent)!important;opacity:var(--night,0)}.guide-cloud{position:absolute;width:110%;max-width:none;bottom:-16%;left:-30%;opacity:var(--cloud-opacity,.6);will-change:transform}.guide-nav{position:absolute;top:26px;left:50%;transform:translateX(-50%);width:calc(100% - 80px);max-width:1480px;display:flex;align-items:center;gap:40px;z-index:10}.brand{display:flex;align-items:center;gap:10px;line-height:1}.brand img{object-fit:contain;filter:none}.brand small{display:block;font-size:9px;letter-spacing:.18em;margin-bottom:3px}.brand b{font-size:25px;font-weight:600;letter-spacing:-.045em}.guide-nav nav{display:flex;gap:30px;margin-left:auto;font-size:14px}.guide-nav [aria-current]{color:#ad3600}.primary{display:inline-flex;align-items:center;gap:28px;min-height:51px;padding:12px 24px;border-radius:100px;background:var(--orange);color:var(--ink);font-weight:600;font-size:15px;box-shadow:0 10px 30px -15px #ad360066}.primary:hover{background:#ff743b;color:var(--ink);box-shadow:0 12px 30px -15px #ad360099}.primary.small{min-height:43px;padding:9px 20px;font-size:13px}.guide-hero{min-height:730px;max-width:1480px;margin:auto;display:flex;align-items:center;padding:170px 60px 100px;position:relative}.hero-words{position:relative;z-index:2;width:70%}.eyebrow{font-size:11px;font-weight:600;letter-spacing:.15em;margin-bottom:26px;color:#525866}h1{font-size:clamp(46px,5.5vw,84px);line-height:1.06;letter-spacing:-.055em;font-weight:450}h1 em{font-style:normal;color:#354a5b}.hero-words>p:not(.eyebrow){font-size:20px;color:#354a5b;margin-top:28px;line-height:1.6}.hero-actions{display:flex;gap:28px;align-items:center;margin:36px 0 45px}.quiet-link{font-size:14px}.guide-scope{display:flex;gap:26px;font-size:12px;color:#354a5b}.hero-aircraft{position:absolute;right:0;width:45%;height:500px;top:120px;pointer-events:none}.hero-drone{position:absolute;width:100%;height:100%;object-fit:contain;transform:rotate(-13deg);filter:drop-shadow(0 40px 35px #354a5b33);opacity:.98}.hero-sun{position:absolute;width:300px;height:300px;top:-60px;right:40px;opacity:.8}.orbit{position:absolute;border:1px solid #ffffff60;border-radius:50%;width:90%;height:60%;top:25%;left:8%;transform:rotate(-30deg)}.orbit-two{transform:rotate(35deg);height:75%;top:12%;width:70%;left:20%}.aircraft-caption{position:absolute;bottom:-15px;right:60px;font-size:12px;letter-spacing:.025em;color:#354a5b}.journeys{max-width:1360px;margin:0 auto 110px;padding:0 40px}.section-intro{margin-bottom:28px}.section-intro h2{font-size:32px;font-weight:500;letter-spacing:-.035em}.section-intro p{color:#525866;font-size:16px;margin-top:8px}.journey-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}.journey{background:#f6fcffbb;border-radius:20px;backdrop-filter:blur(12px)}.journey summary{display:flex;gap:20px;align-items:center;padding:24px;cursor:pointer;list-style:none}.journey summary::-webkit-details-marker,.tutorial summary::-webkit-details-marker{display:none}.journey-symbol{font-size:28px;color:#ad3600;width:32px}.journey b{display:block;font-size:19px;font-weight:550}.journey small{display:block;font-size:13px;color:#626c7d;margin-top:4px}.journey i{margin-left:auto;font-style:normal}.journey ol{margin:0 25px 25px 65px;padding-left:20px;font-size:15px}.journey li+li{margin-top:9px}.reader-layout{display:grid;grid-template-columns:245px minmax(0,850px);gap:64px;max-width:1240px;margin:auto;padding:0 32px;align-items:start}.guide-sidebar{position:sticky;top:26px;max-height:calc(100dvh - 52px);display:flex;flex-direction:column;background:#f6fcfff2;padding:22px 18px;border-radius:20px;box-shadow:0 18px 60px -40px #10121350;z-index:5;font-size:14px}.search-box>label{font-size:13px;font-weight:600;display:block;margin-bottom:10px}.search-box>div{display:flex;align-items:center;gap:6px;background:#eaf3fb;border-radius:10px;padding:8px 10px}.search-box svg{width:17px;height:17px;fill:none;stroke:currentColor;stroke-width:1.5;flex-shrink:0}.search-box input{border:0;min-width:0;width:100%;background:transparent;font-size:13px;color:var(--ink);padding:3px}.search-box button{background:none;color:var(--muted);font-size:20px;line-height:1}.chapter-nav{overflow:auto;margin:18px -5px 0;padding:0 5px;scrollbar-width:thin;scrollbar-color:#b4d2ec transparent}.chapter-group{margin:0 0 16px}.chapter-group p{font-size:10px;text-transform:uppercase;letter-spacing:.1em;color:#626c7d;padding:9px 10px 6px}.chapter-group a{display:flex;align-items:center;justify-content:space-between;padding:7px 10px;border-radius:8px;line-height:1.3;font-size:13px;margin:2px 0}.chapter-group a:hover{background:#eaf3fb}.chapter-group a[aria-current]{background:#ffe9df;color:#ad3600}.chapter-group a.done span:after{content:'✓';color:#21734d;font-size:12px}.reading-progress{padding-top:14px;font-size:11px}.reading-progress progress{display:block;width:100%;height:4px;accent-color:var(--orange);margin:9px 0}.reading-progress button{background:none;padding:0;color:#525866;font-size:11px}.reading-progress small{display:block;color:#626c7d;margin-top:4px}.mobile-chapters{display:none}.guide-content{min-width:0}.guide-chapter{background:#f6fcfff5;border-radius:28px;padding:44px;margin-bottom:70px;scroll-margin-top:35px;box-shadow:0 25px 80px -60px #10121370}.chapter-heading{margin-bottom:30px}.chapter-heading>p{color:#ad3600;font-size:11px;font-weight:600;letter-spacing:.08em;text-transform:uppercase;margin-bottom:10px}.chapter-heading h2{font-size:44px;font-weight:450;letter-spacing:-.04em;line-height:1.15;margin-bottom:18px}.chapter-heading>div{color:#525866;font-size:18px;line-height:1.65}.tutorial{scroll-margin-top:45px}.tutorial+.tutorial{margin-top:5px}.tutorial summary{list-style:none;cursor:pointer;display:flex;align-items:center;gap:20px;padding:20px 0;font-size:21px;font-weight:550;line-height:1.3}.tutorial summary i{font-size:23px;font-style:normal;font-weight:400;color:#626c7d;margin-left:auto;flex:none;transition:transform .2s}.tutorial[open]>summary i{transform:rotate(45deg)}.tutorial:not([open])>summary{color:#354a5b}.tutorial:not([open])>summary:hover{color:#ad3600}.tutorial-body{padding:0 0 28px;animation:read-in .25s ease}.tutorial-body p{font-size:16px;line-height:1.75}.prerequisite{color:#525866;margin:0 0 24px}.prerequisite b{font-weight:600;color:#0e121b;display:block;margin-bottom:4px;font-size:13px}.tutorial-body ol{list-style:none;counter-reset:steps;margin:0;padding:0}.tutorial-body li{counter-increment:steps;position:relative;padding-left:43px;font-size:17px;line-height:1.8;margin-bottom:18px}.tutorial-body li:before{content:counter(steps);position:absolute;left:0;top:4px;width:26px;height:26px;border-radius:50%;background:#eaf3fb;color:#525866;font-size:12px;display:grid;place-items:center;font-variant-numeric:tabular-nums}.tutorial-body a:not(.section-link){color:#ad3600;text-decoration:underline;text-underline-offset:3px}.outcome{background:#e8f5ed;border-radius:12px;padding:17px 20px;margin:26px 0 20px}.outcome>b{color:#21734d;font-size:13px;font-weight:600}.outcome p{margin-top:5px;color:#264b3a}.trouble{padding:0 1px;color:#525866}.trouble>b{font-size:13px;color:#0e121b}.trouble p{margin-top:5px}.section-link{font-size:12px;display:inline-block;margin-top:18px;color:#626c7d}.chapter-end{display:flex;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-top:28px;font-size:12px;color:#525866}.chapter-end label{display:flex;align-items:center;gap:8px;cursor:pointer}.chapter-end input{accent-color:var(--orange);width:16px;height:16px}.chapter-end a{color:#ad3600}.package-heading{font-size:27px;font-weight:500;margin:35px 0 10px;letter-spacing:-.03em}.package-intro{color:#525866;margin-bottom:20px;font-size:16px}.practice{background:#171a1c;color:#fff;border-radius:18px;padding:24px;margin:25px -16px 12px;overflow:hidden}.practice-heading{display:flex;justify-content:space-between;align-items:center;gap:16px}.practice-heading span{color:#ffac87;font-size:11px;letter-spacing:.03em}.practice-heading h3{font-size:27px;font-weight:450;letter-spacing:-.03em;line-height:1.15;margin:5px 0 15px}.practice>p{color:#b9c0cc;font-size:14px;margin:0 0 22px}.practice button{font-size:12px;background:#202427;border-radius:8px;color:#b9c0cc;padding:9px 12px}.practice button:hover{background:#343b41;color:#fff}.practice input[type=range]{width:100%;accent-color:#ff5a16;cursor:pointer;margin:12px 0 22px;min-height:24px}.practice input:not([type=range]){min-width:0;width:100%;padding:10px;background:#101213;color:#fff;border:1px solid #343b41;border-radius:8px;font-size:14px}.practice label{color:#b9c0cc;font-size:13px}.range-label{display:flex;justify-content:space-between;gap:12px}.practice output{color:#ffac87;font-variant-numeric:tabular-nums}.demo-note{font-size:11px!important;margin:18px 0 0!important;color:#99a0ae!important}.practice-canvas{position:relative;height:280px;overflow:hidden;background-color:#101213;background-image:radial-gradient(#343b41 .7px,transparent .7px);background-size:18px 18px;border-radius:12px}.practice-canvas>svg{position:absolute;inset:0;width:100%;height:100%;overflow:visible}.practice-canvas path{stroke:#79cfc0;stroke-width:1.5;fill:none}.practice-node{position:absolute;left:var(--x);top:var(--y);width:28%;height:85px;padding:12px!important;text-align:left;display:flex;flex-direction:column;justify-content:center;gap:3px;touch-action:none;cursor:grab!important;user-select:none}.practice-node:active{cursor:grabbing!important}.practice-node small{font-size:8px;color:#b9c0cc}.practice-node b{font-size:12px;color:white;font-weight:550}.practice-node span{display:flex;justify-content:space-between;font-size:9px;margin-top:3px}.practice-node i{background:#79cfc0;width:6px;height:6px;border-radius:50%}.practice-node[aria-pressed=true]{background:#442c22;box-shadow:0 0 0 1px #ff5a16}.practice-inspector{display:flex;gap:16px;flex-wrap:wrap;font-size:12px;padding-top:18px}.practice-inspector span{color:#b9c0cc}.practice .cad-workspace{margin:0 -12px;box-shadow:none;border-radius:12px}.practice .cad-stage{height:330px}.practice .cad-toolbar{padding:12px}.practice .cad-object-tree{display:none}.practice .cad-toolbar>div>span:last-child{display:none}.practice .cad-status{font-size:10px;padding:12px}.practice .cad-view-tools{left:10px;right:auto;top:10px}.study-controls{display:grid;grid-template-columns:1fr 1fr;gap:25px}.study-controls output{float:right}.study-plot{width:100%;display:block;margin:4px 0 20px}.study-plot text{fill:#99a0ae;font:12px Urbanist}.plot-grid{stroke:#343b41;fill:none;stroke-width:1}#guide-study-target{stroke:#99a0ae;fill:none;stroke-dasharray:5 6}#guide-study-line{stroke:#ff743b;stroke-width:2.5;fill:none;stroke-linecap:round}.study-metrics{display:flex;justify-content:space-between;gap:16px;font-size:12px;color:#99a0ae}.study-metrics b{display:block;color:#fff;font-size:24px;font-weight:450;letter-spacing:-.03em}.mission-walk{display:flex;align-items:center;gap:10px;margin:5px 0 25px}.mission-walk>div{flex:1;padding:18px 10px;background:#202427;border-radius:10px;color:#99a0ae;font-size:13px;text-align:center;transition:background .25s,color .25s}.mission-walk .walk-active{background:#442c22;color:#ffac87;box-shadow:0 0 0 1px #ff5a16}.practice-actions{display:flex;align-items:center;gap:10px;flex-wrap:wrap}.practice-actions output{font-size:13px;flex-basis:100%;margin-top:8px}.power-layout{display:grid;grid-template-columns:100px 1fr;gap:35px;align-items:center;margin:25px 0}.battery-visual{padding:12px;border-radius:13px;background:#101213;position:relative;display:flex;flex-direction:column-reverse;gap:4px}.battery-visual:before{content:'';width:30px;height:6px;background:#626c7d;position:absolute;top:-6px;left:calc(50% - 15px);border-radius:4px 4px 0 0}.battery-visual i{height:12px;background:#ff5a16;border-radius:2px;transition:opacity .25s}.map-fields{display:grid;grid-template-columns:1fr 1fr .7fr;gap:12px;margin-top:18px}.map-fields button{grid-column:1/-1;justify-self:start}.waypoint-picks{display:flex;flex-wrap:wrap;gap:7px}.waypoint-picks button[aria-pressed=true]{background:#442c22;color:#ffac87}#guide-map{height:340px;border-radius:12px;overflow:hidden;background:#202427;margin-bottom:10px}.map-point{width:30px;height:30px;border-radius:50%!important;color:#0e121b!important;background:#ff5a16!important;border:2px solid white!important;padding:0!important;box-shadow:0 3px 10px #0003;font-size:12px!important}.map-point[aria-pressed=true]{background:#fff!important;border-color:#ff5a16!important}.practice #map-status{font-size:11px;margin:10px 0 15px}.maplibregl-ctrl-attrib{font:10px Urbanist,sans-serif!important;color:#0e121b}.maplibregl-ctrl-attrib a{color:#0e121b}.maplibregl-ctrl button{padding:0;background:#fff;border-radius:0}#search-results{padding:32px;background:#f6fcfff5;border-radius:24px;margin-bottom:70px}.search-results-head{margin-bottom:25px}.search-results-head h2{font-size:32px;letter-spacing:-.035em;font-weight:500}.search-results-head p{font-size:14px;color:#525866;margin-top:6px}.search-result{display:block;padding:18px 0}.search-result+.search-result{border-top:1px solid #d9e2ea}.search-result small{color:#626c7d;font-size:11px}.search-result h3{font-size:22px;line-height:1.3;font-weight:550;margin:4px 0 8px}.search-result p{font-size:14px;color:#525866}.search-result mark{color:inherit;background:#ffe9df;border-radius:2px}.guide-help{max-width:900px;margin:70px auto 0;text-align:center;padding:120px 30px 100px;color:white;position:relative}.guide-help>img{width:160px;height:160px;object-fit:contain;filter:drop-shadow(0 0 55px #ffe9df33);margin-bottom:50px}.guide-help>p:first-of-type{font-size:10px;letter-spacing:.16em;color:#ffac87;margin-bottom:20px}.guide-help h2{font-size:50px;font-weight:450;letter-spacing:-.04em;line-height:1.12;margin-bottom:22px}.guide-help>p{color:#b9c0cc;max-width:530px;margin:0 auto 30px}.guide-help .quiet-link{display:block;margin-top:25px;color:#b9c0cc}.guide-footer{background:#101213;color:white;padding:45px max(30px,calc((100vw - 1280px)/2));display:flex;flex-wrap:wrap;gap:28px;align-items:center}.guide-footer>p{font-size:15px;color:#b9c0cc;margin-left:auto}.guide-footer nav{display:flex;gap:25px;width:100%;font-size:13px;flex-wrap:wrap}.guide-footer>small{font-size:11px;color:#99a0ae;flex-basis:100%}.guide-footer>small+small{margin-top:-16px}.guide-footer a:hover{color:#ffac87}#guide-toast{position:fixed;bottom:25px;left:50%;transform:translateX(-50%);background:#171a1c;color:white;border-radius:100px;font-size:13px;z-index:30;padding:12px 24px;box-shadow:0 10px 40px #0003;opacity:0;pointer-events:none;transition:opacity .2s}#guide-toast.visible{opacity:1}.noscript{background:#f6fcff;padding:20px;text-align:center}@keyframes read-in{from{opacity:.4;transform:translateY(-4px)}to{opacity:1;transform:none}}
.guide-hero{overflow:clip}.guide-sidebar{background:#f6fcff}.guide-day:after{content:'';position:absolute;inset:0;background:linear-gradient(110deg,#eaf3fb38,transparent 80%)}
@media(min-width:1600px){.guide-hero{min-height:790px}.hero-aircraft{top:150px}}
@media(max-width:1100px){.guide-hero{padding:150px 40px 80px;min-height:670px}.hero-words{width:77%}.hero-aircraft{right:0;width:43%;top:190px;opacity:.7}.hero-drone{transform:rotate(-13deg) translateX(12%)}.reader-layout{gap:28px;grid-template-columns:210px minmax(0,1fr);padding:0 24px}.guide-chapter{padding:30px}.chapter-heading h2{font-size:38px}.guide-nav{width:calc(100% - 48px)}.practice{margin-inline:-12px;padding:20px}.practice-heading h3{font-size:24px}}
@media(max-width:780px){:root{scroll-padding-top:0px}.guide-nav{top:24px;gap:18px}.guide-nav nav{gap:18px;font-size:12px}.guide-nav .small{display:none}.guide-nav .brand b{font-size:22px}.guide-hero{display:block;padding:145px 26px 40px;min-height:0}.hero-words{width:100%}h1{font-size:clamp(43px,7.4vw,65px)}.hero-words>p:not(.eyebrow){font-size:18px}.hero-aircraft{position:relative;width:85%;height:260px;top:auto;right:auto;margin:-10px 0 -20px auto;opacity:1}.hero-drone{transform:rotate(-13deg)}.hero-sun{width:240px;top:0;right:0}.aircraft-caption{bottom:0;right:0;font-size:11px}.hero-actions{margin:28px 0;gap:20px;flex-wrap:wrap}.guide-scope{gap:16px;flex-wrap:wrap;font-size:11px}.journeys{padding:0 24px;margin-bottom:60px}.journey-grid{grid-template-columns:1fr}.section-intro h2{font-size:29px}.journey summary{padding:20px}.reader-layout{display:block;padding:0 18px}.guide-sidebar{top:10px;display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-bottom:28px;padding:14px;border-radius:15px;max-height:none;box-shadow:0 12px 35px -20px #10121366}.chapter-nav{display:none}.mobile-chapters{display:block;min-width:0}.mobile-chapters label{font-size:11px;font-weight:600;display:block;margin-bottom:8px}.mobile-chapters select{width:100%;min-height:40px;border:0;border-radius:10px;background:#eaf3fb;color:#0e121b;font-size:12px;padding:8px}.search-box>label{font-size:11px;margin-bottom:8px}.search-box>div{min-height:40px;padding:8px}.search-box input{font-size:16px;width:100%;padding:0}.reading-progress{grid-column:1/-1;padding:0;display:flex;gap:12px;align-items:center;font-size:10px}.reading-progress progress{width:auto;flex:1;min-width:20px}.reading-progress small{display:none}.reading-progress button{font-size:10px}.guide-chapter{scroll-margin-top:180px;margin-bottom:40px;padding:28px 24px;border-radius:20px}.tutorial{scroll-margin-top:180px}.chapter-heading h2{font-size:38px}.chapter-heading>div{font-size:17px}.tutorial summary{font-size:20px}.tutorial-body li{font-size:16px;padding-left:36px}.tutorial-body p{font-size:15px}.practice-heading{align-items:flex-start}.practice-heading h3{font-size:24px}.practice-heading>button{font-size:10px;padding:8px;flex-shrink:0}.practice-canvas{height:245px}.practice-node{padding:8px!important;height:76px}.practice-node b{font-size:10px}.practice-node small{font-size:7px}.practice-node span{font-size:8px}.study-metrics b{font-size:22px}.practice .cad-stage{height:310px}.practice .cad-status>span:first-child{max-width:52%}.practice .cad-toolbar{gap:5px}.practice .cad-modes button{padding:8px;font-size:10px}.guide-help{padding:60px 25px 75px;margin-top:0}.guide-help h2{font-size:40px}.guide-footer{padding:35px 25px}.guide-footer>p{margin:0;flex-basis:100%}.guide-cloud{width:160%;left:-50%}.chapter-end{gap:16px}.map-fields{grid-template-columns:1fr 1fr}.map-fields label:last-of-type{grid-column:1}.mission-walk{gap:6px}.mission-walk>div{font-size:11px;padding:15px 6px}.power-layout{grid-template-columns:65px 1fr;gap:20px}#search-results{padding:26px 22px}.guide-nav nav a:first-child{display:none}}
@media(prefers-reduced-motion:reduce){:root{scroll-behavior:auto}*,*:before,*:after{animation:none!important;transition:none!important}.guide-cloud{will-change:auto}}
@media print{.guide-atmosphere,.guide-nav,.guide-sidebar,.guide-hero,.journeys,.practice,.chapter-end,.guide-help,.guide-footer,.section-link{display:none!important}body{background:white;color:black}.reader-layout{display:block;padding:0}.guide-chapter{background:white;box-shadow:none;padding:10px 0;margin:0;break-before:page}.tutorial-body{display:block!important}.tutorial{display:block}.guide-chapter:first-child{break-before:auto}}
