:root{font-family:Inter,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:#f1f3e9;background:#829e99;font-synthesis:none;--accent:#e9a258;--ink:#152821;--line:#ffffff28;--muted:#c9d4c5}
*{box-sizing:border-box}body{margin:0;overflow:hidden}button,a,input{touch-action:manipulation}button,input{font:inherit}button{cursor:pointer;color:inherit;background:#ffffff0d;border:1px solid var(--line);border-radius:8px;padding:10px 13px}button:hover{background:#ffffff1f;border-color:#ffffff66}button:focus-visible,a:focus-visible,input:focus-visible,summary:focus-visible{outline:2px solid var(--accent);outline-offset:4px}button:disabled{opacity:.45;cursor:wait}button[aria-pressed=true]{color:#ffd3a0;border-color:#dca162;background:#e9a2581f}a{color:inherit}kbd{font-family:inherit;font-size:10px;display:inline-block;border:1px solid #ffffff35;border-radius:4px;padding:2px 5px;color:#dbe1d4;line-height:1.2}button kbd{margin-left:6px;opacity:.75}#world{position:fixed;inset:0}#world canvas{width:100%;height:100%;display:block;touch-action:none}header{position:fixed;top:0;left:0;right:0;padding:22px 30px;display:flex;gap:30px;align-items:center;background:linear-gradient(#122820b3,transparent);z-index:3}.brand{display:flex;gap:12px;align-items:center;text-decoration:none;font-size:17px;letter-spacing:.11em;font-weight:700}.brand-mark{border:1px solid #d7dec5a0;border-radius:8px;width:37px;height:42px;display:grid;place-items:center;font-size:28px;font-weight:300}.brand small{display:block;font-size:8px;letter-spacing:.24em;font-weight:500;margin-top:5px}.session{display:flex;gap:8px;font-size:12px;color:#e2ead9}.session i{width:5px;height:5px;background:#a6d7a1;border-radius:50%}nav{margin-left:auto;display:flex;gap:7px}nav button{font-size:12px;backdrop-filter:blur(16px);background:#1c352758}#instruments{position:fixed;top:100px;left:50%;transform:translateX(-50%);display:flex;gap:28px;padding:15px 26px;background:#1630236e;backdrop-filter:blur(16px);border:1px solid #ffffff20;border-radius:12px;text-align:center;pointer-events:none}#instruments div{min-width:70px;white-space:nowrap}#instruments span{font-size:8px;letter-spacing:.13em;display:block;color:#d0dbc5;margin-bottom:5px}#instruments strong{font-size:29px;font-weight:500;font-variant-numeric:tabular-nums;letter-spacing:-.04em}#instruments small{font-size:10px;color:#d0dbc5;margin-left:5px}.glass{background:#142a23d6;border:1px solid #e5e9d125;border-radius:14px;backdrop-filter:blur(20px);box-shadow:0 15px 50px #08231612}.eyebrow{font-size:9px;letter-spacing:.17em;color:#c5cfb9;font-weight:600}#route{position:fixed;left:30px;bottom:64px;width:252px;padding:20px}#route strong{display:block;font-size:18px;font-weight:500;margin-top:10px}#route p{font-size:11px;line-height:1.5;color:var(--muted);margin:8px 0 16px}#route button{font-size:11px;text-align:left;border:0;border-top:1px solid var(--line);padding:13px 0 0;border-radius:0;background:none;width:100%;color:#f1c58d}#route-progress{height:3px;background:var(--accent);margin-top:12px;transition:width .4s}#controls{position:fixed;right:30px;bottom:64px;width:282px;padding:20px}.control-heading{display:flex;justify-content:space-between;align-items:center;margin-bottom:25px}.power-tag{font-size:9px;color:var(--accent)}#controls label{display:flex;justify-content:space-between;font-size:12px;align-items:center;margin:17px 0 9px}#controls label small{display:block;font-size:9px;color:#acbfa9;margin-top:5px}output{font-variant-numeric:tabular-nums;font-size:19px;font-weight:400;color:#f2c996}input[type=range]{width:100%;accent-color:var(--accent);height:18px;cursor:pointer;display:block;margin:0}.range-labels{display:flex;justify-content:space-between}.range-labels button{font-size:9px;border:0;background:none;padding:5px 0;color:#b7c6ad}.toggles{display:flex;gap:8px;margin-top:17px}.toggles button{font-size:10px;flex:1;padding:9px 6px}.toggles kbd{font-size:8px;padding:1px 3px;margin-left:2px}#assist-note{font-size:9px;color:#afc2a9;margin:14px 0 0;line-height:1.5}.bottom-strip{position:fixed;bottom:20px;left:30px;right:30px;display:flex;gap:20px;font-size:10px;text-shadow:0 1px 8px #123c2d;letter-spacing:.02em}.model-note{margin-left:auto;color:#e2e8d5}#flight-time{font-variant-numeric:tabular-nums}#reticle{position:fixed;left:50%;top:50%;transform:translate(-50%,-50%);display:flex;align-items:center;gap:8px;pointer-events:none;opacity:.55}#reticle span{width:25px;height:1px;background:white}#reticle i{height:5px;width:5px;border:1px solid white;border-radius:50%}#alert{position:fixed;top:200px;left:50%;transform:translateX(-50%);font-size:11px;padding:10px 18px;border-radius:6px;background:#603e26dc;white-space:nowrap;border:1px solid #f5a35155;max-width:90vw;white-space:normal;text-align:center}.overlay{position:fixed;inset:0;background:#0b231c40;backdrop-filter:blur(3px);display:flex;align-items:center;justify-content:center;padding:24px;z-index:5}.overlay[hidden],[hidden]{display:none!important}.welcome-card{width:min(730px,100%);padding:36px;background:#142920ed;border:1px solid #ffffff2b;border-radius:20px;box-shadow:0 30px 100px #061a2150;max-height:95dvh;overflow:auto}.welcome-card .eyebrow{color:#d8b482}h1{font-size:clamp(30px,4.1vw,49px);font-weight:500;line-height:1.08;letter-spacing:-.04em;margin:18px 0}.intro{font-size:14px;line-height:1.65;max-width:420px;color:#c9d4c1;margin-bottom:27px}.start-options{display:grid;grid-template-columns:1fr 1fr 1fr;gap:10px}.start-options button{position:relative;padding:16px;text-align:left;min-height:130px;border-radius:10px;background:#ffffff06}.start-options button:hover{background:#e9a2581f;border-color:var(--accent)}.start-options span{color:var(--accent);display:block;font-size:10px;margin-bottom:22px}.start-options strong{display:block;font-weight:500;font-size:15px}.start-options small{display:block;font-size:10px;color:#b9cab0;line-height:1.5;margin-top:6px}.start-options b{position:absolute;right:15px;top:14px;color:#bdc9ad;font-weight:400;font-size:20px}.quick-keys{display:flex;gap:22px;margin-top:22px;font-size:10px;color:#c3cdb9;align-items:center}.quick-keys kbd{margin-right:3px}.smallprint{font-size:10px;line-height:1.6;color:#92a88f;margin:20px 0 0}.compact-card{padding:32px;max-width:390px;width:100%;background:#152b23ee;border:1px solid var(--line);border-radius:18px}.compact-card h2{font-weight:500;font-size:32px;margin:12px 0}.compact-card p{font-size:13px;line-height:1.7;color:var(--muted)}.compact-card button{display:block;width:100%;margin-top:12px;font-size:13px}.primary{background:var(--accent);border-color:var(--accent);color:#1c3024;font-weight:600}.primary:hover{background:#f4bd7d;color:#1c3024}.compact-card .primary{margin-top:23px}#loading{position:fixed;inset:0;z-index:20;background:#19342b;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:18px}#loading strong{letter-spacing:.2em;font-size:22px}#load-text{font-size:12px;color:#bfccb7}.loading-mark{font-size:50px;color:var(--accent);font-weight:200}.load-track{width:190px;height:2px;background:#ffffff20;margin-top:8px}.load-track i{height:100%;display:block;width:2%;background:var(--accent);transition:width .3s}dialog{color:inherit;background:#193026;border:1px solid var(--line);border-radius:18px;width:min(650px,calc(100vw - 24px));max-height:88dvh;padding:26px;box-shadow:0 30px 100px #071f2666}dialog::backdrop{background:#071e1b85;backdrop-filter:blur(5px)}.dialog-head{display:flex;align-items:flex-start;justify-content:space-between;gap:15px}.dialog-head h2{font-size:24px;letter-spacing:-.02em;font-weight:500;margin:8px 0}.dialog-head button{font-size:24px;border:0;padding:0 7px}.settings-note,dialog details p{font-size:12px;line-height:1.7;color:#b8cab1}.config-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin:22px 0}.config-grid label{font-size:11px;color:#c0d0b8}.config-grid input{display:block;background:#0f251b;border:1px solid #ffffff32;border-radius:7px;color:inherit;width:100%;padding:11px;margin-top:8px;font-size:16px}#twr-note{font-size:11px;color:var(--accent);margin-bottom:22px}details{border-top:1px solid var(--line);padding:15px 0;font-size:12px}summary{cursor:pointer;color:#e2e8da}.key-table{display:grid;grid-template-columns:1fr 1fr;gap:13px 22px;padding:20px 0;color:#b9cdb1;font-size:10px}.key-table kbd{font-size:9px;margin-right:5px}dialog .primary{width:100%;margin-top:10px}#touch-controls{display:none}
@media(max-width:1000px){header{padding:16px 20px}.session{display:none}#controls{right:20px;bottom:52px;width:252px;padding:16px}#route{left:20px;bottom:52px;width:215px;padding:16px}.bottom-strip{left:20px;right:20px;bottom:16px}#instruments{top:90px;gap:20px}}
@media(pointer:coarse),(max-width:650px){#touch-controls{display:block;position:fixed;left:22px;bottom:90px}#stick{width:125px;height:125px;border:1px solid #e2efcf66;border-radius:50%;background:#16332655;touch-action:none;position:relative;backdrop-filter:blur(6px)}#stick:before,#stick:after{content:'';position:absolute;background:#ffffff22}#stick:before{width:1px;height:100%;left:50%}#stick:after{height:1px;width:100%;top:50%}#stick-knob{display:block;width:42px;height:42px;position:absolute;left:41px;top:41px;border-radius:50%;background:#f1cd9777;border:1px solid #efdcbb}#route{bottom:245px;width:180px;padding:13px}#route p{display:none}.touch-yaw{display:flex;gap:5px;margin-top:10px}.touch-yaw button{font-size:13px;padding:7px 10px;touch-action:none;background:#183528c9}.touch-yaw button:last-child{font-size:10px}.quick-keys{display:none}}
@media(max-width:650px){header{padding:12px 14px;gap:8px}.brand{font-size:13px;gap:7px}.brand small{font-size:6px}.brand-mark{width:26px;height:32px;font-size:22px}nav{gap:4px}nav button{padding:8px;font-size:10px}nav kbd,#sound{display:none}#instruments{top:64px;padding:10px 16px;gap:18px;border-radius:8px;width:calc(100% - 28px);justify-content:space-between}#instruments div{min-width:0}#instruments strong{font-size:23px}#instruments span{font-size:7px;letter-spacing:.04em}#instruments small{font-size:8px;margin-left:3px}#controls{right:14px;bottom:45px;width:196px;padding:13px;border-radius:10px}.control-heading{margin-bottom:12px}.control-heading .eyebrow{font-size:7px}.power-tag{font-size:8px}#controls label{font-size:10px;margin:12px 0 5px}#controls label small{display:none}#controls output{font-size:15px}.toggles{gap:4px;margin-top:10px}.toggles button{font-size:8px;padding:8px 3px}.toggles kbd{display:none}#assist-note{font-size:8px;margin-top:8px}#route{left:14px;bottom:285px;width:auto;max-width:220px;background:#17312580;padding:11px;border-radius:8px}#route .eyebrow{font-size:7px}#route strong{font-size:13px;margin-top:5px}#route p{display:none}#route button{font-size:9px;margin-top:8px;padding-top:8px}#touch-controls{left:16px;bottom:72px}#stick{width:110px;height:110px}#stick-knob{left:34px;top:34px}.bottom-strip{left:14px;right:14px;bottom:14px;font-size:8px;gap:10px}.model-note{max-width:130px;text-align:right}#camera-name{max-width:100px}#alert{top:135px;font-size:10px}.overlay{padding:12px}.welcome-card{padding:24px;border-radius:15px;max-height:94dvh}h1{font-size:34px}.intro{font-size:12px;margin-bottom:20px}.start-options{grid-template-columns:1fr;gap:8px}.start-options button{min-height:66px;padding:12px 15px 12px 48px}.start-options span{position:absolute;left:15px;top:17px;font-size:10px}.start-options strong{font-size:14px}.start-options small{font-size:10px;margin-top:4px}.start-options b{top:20px}.smallprint{font-size:9px}.quick-keys{gap:10px;flex-wrap:wrap}.config-grid{gap:12px}.config-grid label{font-size:10px}.key-table{grid-template-columns:1fr}.compact-card{padding:25px}}
@media(max-height:600px) and (min-width:651px){header{padding:10px 20px}#instruments{top:60px;padding:8px 16px}#instruments strong{font-size:23px}#controls{bottom:35px;padding:12px;width:225px}.control-heading{margin-bottom:10px}#controls label{margin-top:9px}#controls label small{display:none}#assist-note{display:none}.welcome-card{padding:22px;width:680px}h1{font-size:30px;margin:12px 0}.intro{margin-bottom:15px}.start-options button{min-height:95px}.start-options span{margin-bottom:12px}.smallprint{margin-top:12px}.quick-keys{margin-top:14px}#route{bottom:40px}#alert{top:130px}}

/* Aerodynamic instruments and unpowered-flight controls. */
#aero-panel{position:fixed;left:50%;top:195px;transform:translateX(-50%);width:430px;padding:12px 16px;border-radius:10px;background:#142a23bf}
.aero-metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:9px;text-align:center}.aero-metrics span{display:block;font-size:8px;color:#c8d5bd;margin-bottom:5px}.aero-metrics strong{font-size:17px;font-weight:500;font-variant-numeric:tabular-nums;white-space:nowrap}.aero-footer{display:flex;align-items:center;justify-content:space-between;gap:8px;margin-top:10px;border-top:1px solid #ffffff18;padding-top:8px;font-size:9px;color:#c4d2b7}.aero-footer button{font-size:9px;padding:4px 8px}#force-legend{font-size:8px;line-height:1.6;color:#d2ddc9;margin:9px 0 0}#aoa.danger{color:#ffba78}.power-actions{display:grid;grid-template-columns:1fr 1fr;gap:6px;margin-top:12px}.power-actions button{font-size:10px;padding:8px 5px}.power-actions #glide{grid-column:1/-1;color:#f0c58d;border-color:#c6975b70}.power-actions kbd{font-size:8px;padding:1px 3px;margin-left:2px}#prop-status{font-size:9px;color:#d4b98c;margin:8px 0 0}#controls{max-height:calc(100dvh - 330px);overflow-y:auto;scrollbar-width:thin;scrollbar-color:#798a65 transparent}.start-options{grid-template-columns:repeat(2,minmax(0,1fr))}.start-options button{min-height:100px}.start-options span{margin-bottom:12px}#alert{top:295px}
@media(max-width:1000px){#aero-panel{top:183px}#controls{max-height:calc(100dvh - 305px)}}
@media(max-width:650px){#aero-panel{top:134px;width:calc(100% - 28px);padding:9px 12px}.aero-metrics span{font-size:7px}.aero-metrics strong{font-size:14px}.aero-footer{font-size:8px;margin-top:7px;padding-top:6px}#controls{max-height:44dvh}.power-actions button{font-size:8px}.power-actions kbd{display:none}#prop-status{font-size:8px}.start-options{grid-template-columns:1fr}.start-options button{min-height:66px}.start-options span{margin-bottom:0}#alert{top:238px}.welcome-card h1{font-size:30px}.intro{margin-bottom:18px}#route{bottom:calc(44dvh + 58px);max-width:205px}}
@media(max-height:600px) and (min-width:651px){#aero-panel{top:139px;width:410px;padding:8px 12px}.aero-metrics strong{font-size:13px}.aero-footer{margin-top:5px;padding-top:5px}#controls{max-height:calc(100dvh - 260px)}#alert{top:225px}}

.glide-action{width:100%;margin-top:12px;font-size:11px;padding:9px;color:#f0c58d;border-color:#c6975b70}#power-details{padding:12px 0 0;margin-top:12px}#power-details summary{font-size:10px;color:#b9cdb1}#power-details .power-actions{margin-top:10px}#power-details label{margin-top:13px}@media(max-width:650px){.glide-action{font-size:9px;padding:8px}#power-details summary{font-size:9px}#route{bottom:calc(44dvh + 58px)}}