:root{color-scheme:dark;--ink:#101a1b;--paper:#f0f2e8;--acid:#d8ff70;--muted:#a3b0aa;--line:rgba(233,243,225,.18);font-family:Arial,Helvetica,sans-serif;font-synthesis:none}*{box-sizing:border-box}html,body{margin:0;width:100%;height:100%;overflow:hidden;background:var(--ink);color:var(--paper)}button,a,input,select{-webkit-tap-highlight-color:transparent}button,select{font:inherit}button{cursor:pointer}button,a{touch-action:manipulation}button{color:inherit}button:focus-visible,a:focus-visible,select:focus-visible,input:focus-visible{outline:2px solid var(--acid);outline-offset:5px}button:disabled{cursor:default;opacity:.5}a{color:inherit;text-decoration:none}button{border:0}button svg{width:23px;height:23px}button:hover{filter:brightness(1.1)}[hidden]{display:none!important}#world{position:fixed;inset:0;width:100%;height:100%;display:block;touch-action:none}.shade{pointer-events:none;position:fixed;inset:0;background:linear-gradient(90deg,rgba(9,19,20,.92),rgba(9,19,20,.58) 35%,transparent 72%),linear-gradient(0deg,rgba(9,19,20,.95),transparent 46%);transition:opacity .5s}body.in-game .shade{opacity:0}header{position:fixed;top:0;left:0;right:0;display:flex;align-items:center;justify-content:space-between;padding:30px 4.3%;z-index:5;pointer-events:none}.brand{font-size:26px;letter-spacing:-1.5px;font-weight:900;background:none;padding:0;pointer-events:auto;text-align:left}.brand>span{color:var(--acid);margin:0 4px;font-weight:400}.brand small{font-size:8px;letter-spacing:2.2px;display:block;margin-top:7px;font-weight:400}.brand::first-letter{font-style:italic}nav{display:flex;align-items:center;gap:12px;pointer-events:auto}.research-link{font-size:12px;margin-right:12px}.research-link span{color:var(--acid);font-size:17px;margin-left:12px}.icon-button{width:42px;height:42px;display:grid;place-items:center;border:1px solid var(--line);border-radius:50%;background:rgba(14,25,27,.35);backdrop-filter:blur(12px);font-size:20px}.menu{position:fixed;inset:0;pointer-events:none}.menu button,.menu a,.missions{pointer-events:auto}.hero{position:absolute;left:4.3%;top:21%;max-width:660px}.eyebrow,.micro{font-size:9px;letter-spacing:2px;font-weight:700}.eyebrow{display:flex;align-items:center;gap:10px;color:var(--acid)}.eyebrow i,.status-led{display:inline-block;width:5px;height:5px;background:var(--acid);border-radius:100%;box-shadow:0 0 12px #d8ff7070}.hero h1{font-size:clamp(56px,7.3vw,110px);line-height:.93;font-weight:900;letter-spacing:-.075em;margin:24px 0}.hero h1 em{font-style:normal;color:var(--acid)}.hero p{font-size:15px;line-height:1.6;color:#bcc6bf;margin:0 0 26px}.launch{height:58px;min-width:228px;padding:0 22px;display:flex;align-items:center;justify-content:space-between;gap:40px;background:var(--acid);color:var(--ink);font-size:12px;font-weight:800;letter-spacing:1px;border-radius:3px;transition:transform .2s}.launch:hover{transform:translateY(-2px)}.launch span{font-size:28px;font-weight:400}.hero-meta{display:flex;align-items:center;gap:12px;margin-top:16px;font-size:8px;letter-spacing:1.5px;color:#8e9d96}.hero-meta b{color:var(--acid)}.hero-annotation{position:absolute;right:6%;top:51%;font-size:8px;letter-spacing:1.7px;color:#d8e2d9}.hero-annotation i{display:block;margin:14px 0;width:70px;border-top:1px solid #d8e2d966}.hero-annotation p{font-size:10px;letter-spacing:.3px;line-height:1.6;color:#aab9b2}.program{position:absolute;bottom:66px;left:4.3%;right:4.3%;max-height:24vh}.program-heading{display:flex;justify-content:space-between;font-size:8px;letter-spacing:2px;color:#aab9b2;margin-bottom:14px}.program-heading span:first-child{color:var(--paper)}.missions{display:grid;grid-template-columns:repeat(5,1fr);gap:10px}.mission{position:relative;background:rgba(18,32,33,.64);border:1px solid var(--line);padding:16px 17px 13px;text-align:left;border-radius:3px;backdrop-filter:blur(10px);transition:background .2s,border-color .2s}.mission.active{background:rgba(49,67,47,.78);border-color:var(--acid)}.mission-top{display:flex;justify-content:space-between;color:#a2b2a5;font-size:9px;letter-spacing:2px}.mission-top b{color:var(--acid);letter-spacing:0}.mission h3{margin:16px 0 6px;font-size:15px;letter-spacing:-.4px}.mission p{font-size:10px;color:#a9b7ae;margin:0}.mission-course{height:12px;width:50px;position:absolute;top:19px;left:46%;opacity:.5}.mission-course i{position:absolute;display:block;width:6px;height:6px;border:1px solid var(--acid);border-radius:50%}.mission-course i:nth-child(1){left:0;top:4px}.mission-course i:nth-child(2){left:15px;top:0}.mission-course i:nth-child(3){left:30px;top:4px}.mission.active .mission-course{opacity:1}.menu-foot{position:absolute;bottom:25px;left:4.3%;right:4.3%;display:flex;justify-content:space-between;color:#7f9186;font-size:9px}.hud{position:fixed;inset:0;pointer-events:none;background:linear-gradient(0deg,rgba(10,24,24,.5),transparent 24%,transparent 75%,rgba(10,24,24,.6));font-variant-numeric:tabular-nums}.in-game header{display:none}.hud-top{position:absolute;top:max(27px,env(safe-area-inset-top));left:4%;right:4%;display:flex;align-items:center;gap:22px}.hud-top h2{font-size:20px;margin:6px 0 0;letter-spacing:-.6px}.micro{color:#c5d2c5;font-size:8px}.hud-score{margin-left:auto;text-align:right}.hud-score strong{display:block;font-size:26px;letter-spacing:-1px;margin-top:2px}.hud button{pointer-events:auto}.course-progress{position:absolute;left:4%;right:4%;top:100px;height:2px;background:#c9e0d329}.course-progress i{display:block;width:0;height:100%;background:var(--acid)}.course-progress>span{position:absolute;right:0;top:8px;font-size:6px;letter-spacing:2px;opacity:.55}.status-row{position:absolute;top:116px;left:4%;display:flex;gap:22px;font-size:8px;letter-spacing:1.4px}.status-row b{font-weight:400}.status-row i{margin-right:7px}.next-gate{position:absolute;right:4.1%;top:160px;display:flex;align-items:flex-end;flex-direction:column;gap:7px}.next-gate strong{font-size:29px;font-weight:500}.next-gate strong small{font-size:10px;letter-spacing:1px}.next-gate>span:last-child{font-size:8px;letter-spacing:1px;color:var(--acid)}.instruments{position:absolute;bottom:74px;left:4%;right:4%;display:flex;align-items:flex-end;gap:28px;text-shadow:0 1px 6px #0008}.speed{display:flex;align-items:baseline;gap:9px;min-width:145px}.speed strong{font-size:67px;font-weight:500;line-height:.9;letter-spacing:-4px}.speed span,.altitude span{font-size:8px;letter-spacing:1px;color:#becdc1}.pressure{width:240px}.pressure>div:first-child{display:flex;align-items:center;justify-content:space-between;margin-bottom:10px}.pressure b{font-size:11px}.pressure-track{height:5px;background:#d2dfd42a}.pressure-track i{display:block;height:100%;width:100%;background:var(--acid);transition:background .3s}.pressure>span{display:block;margin-top:9px;font-size:7px;letter-spacing:1px;color:#acbeb0}.altitude{margin-left:auto;display:flex;flex-direction:column;gap:8px;text-align:right}.altitude strong{font-size:34px;line-height:.9;font-weight:400;letter-spacing:-1px}.desktop-help{position:absolute;bottom:27px;left:4%;right:4%;display:flex;gap:23px;align-items:center;justify-content:center;opacity:.75;font-size:7px;letter-spacing:1px}.desktop-help span{display:flex;align-items:center;gap:5px}kbd{font-family:inherit;font-size:9px;border:1px solid #b3c3b54d;border-bottom-width:2px;border-radius:3px;padding:4px 6px;color:#e6eee2;white-space:nowrap}.flight-hint{position:absolute;top:155px;left:4%;font-size:11px;line-height:1.6;max-width:300px;color:#e1eacb}.toast{position:absolute;top:29%;left:50%;transform:translateX(-50%) translateY(10px);text-align:center;opacity:0;transition:opacity .2s,transform .2s;white-space:nowrap;text-shadow:0 2px 16px #0009}.toast.visible{opacity:1;transform:translateX(-50%) translateY(0)}.toast b{display:block;font-size:30px;letter-spacing:-1px;color:var(--acid)}.toast span{font-size:10px;letter-spacing:1.6px;margin-top:8px;display:block}.toast.bad b{color:#ff9f85}.countdown{position:absolute;left:50%;top:42%;transform:translate(-50%,-50%);font-size:110px;line-height:1;font-weight:900;font-style:italic;letter-spacing:-8px;text-shadow:0 0 45px #d8ff7044}.touch-controls{display:none}.panel{color:var(--paper);background:#152122f5;backdrop-filter:blur(24px);border:1px solid #e4e7c52b;border-radius:6px;box-shadow:0 30px 100px #0007;padding:38px;width:min(860px,calc(100% - 32px));max-height:calc(100dvh - 40px);overflow:auto}.panel::backdrop{background:#061011a8;backdrop-filter:blur(6px)}.panel h2{font-size:48px;letter-spacing:-2.5px;line-height:1.03;margin:24px 0 18px;font-weight:800}.panel>p{font-size:14px;line-height:1.7;max-width:540px;color:#a9b9ae}.close{position:absolute;right:18px;top:14px;font-size:29px;background:none;color:#a5b7aa}.lesson-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:15px;margin:30px 0 20px}.lesson-grid article{background:#20302b80;border:1px solid var(--line);padding:20px}.lesson-grid article>span{font-size:8px;letter-spacing:1.5px;color:#9bb09b}.lesson-icon{font-size:42px;color:var(--acid);margin-top:17px}.lesson-grid h3{font-size:16px;letter-spacing:-.4px;margin:14px 0 12px}.lesson-grid p{font-size:12px;line-height:1.8;color:#b0c1b5;margin:0}.lesson-grid kbd{font-size:8px;padding:2px 4px}.intro-note{font-size:11px;color:#a9b9a5;margin:20px 0}.small-panel{width:min(480px,calc(100% - 32px))}.small-panel h2{font-size:40px}.small-panel>.launch{width:100%;margin-top:26px}.secondary{display:flex;align-items:center;justify-content:center;gap:16px;width:100%;background:#293b3333;border:1px solid var(--line);border-radius:3px;padding:14px;font-size:12px;margin-top:12px}.text-button{display:block;background:none;color:#a6baac;font-size:11px;margin:22px auto 0}.setting{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:20px 0;border-bottom:1px solid var(--line)}.setting b{font-size:13px;font-weight:500}.setting small{font-size:10px;display:block;color:#93a99b;margin-top:6px;line-height:1.4}.setting input{width:19px;height:19px;accent-color:var(--acid);flex-shrink:0}.setting select{font-size:11px;padding:8px;background:#27352d;border:1px solid var(--line);color:var(--paper);border-radius:3px;max-width:130px}.save-note{font-size:10px!important}.settings-research{font-size:11px;color:var(--acid);display:block;margin-top:18px}.result-panel{width:min(570px,calc(100% - 32px))}.result-heading{display:flex;align-items:center;justify-content:space-between}.result-heading h2{font-size:43px;margin-top:20px}.medal{width:60px;height:60px;border:1px solid #c7db76;color:var(--acid);border-radius:50%;display:grid;place-items:center;font-size:28px;background:#a7c03910;flex-shrink:0}.medal.silver{color:#d9e1e3;border-color:#d9e1e3}.medal.bronze{color:#e9b391;border-color:#e9b391}.medal.complete{color:#a2b4a9;border-color:#71887a}.result-score strong{font-size:74px;letter-spacing:-5px;line-height:1.1;font-weight:500}.result-score>span{font-size:8px;letter-spacing:1.5px;display:block;margin:7px 0 26px;color:#abb8ac}.result-score b{display:inline-block;margin-left:10px;color:var(--acid);font-size:8px;font-weight:400}.result-stats{display:grid;grid-template-columns:repeat(4,1fr);padding:20px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.result-stats b{display:block;font-size:22px;font-weight:400}.result-stats span{display:block;font-size:7px;letter-spacing:1.3px;color:#9bafa2;margin-top:8px}.result-panel>.launch{width:100%;margin-top:22px}.result-actions{display:flex;gap:12px}.result-panel>p{font-size:12px}.no-js,#unsupported{position:fixed;inset:0;background:#172523;padding:10%;z-index:100;color:var(--paper)}#unsupported h1{font-size:48px;letter-spacing:-2px}#unsupported p{max-width:500px;line-height:1.7;color:#afc5b5}#unsupported a{display:block;color:var(--acid);margin:24px 0}#unsupported button{padding:14px 24px;background:var(--acid);color:var(--ink)}#loading{position:fixed;inset:0;z-index:90;background:#111b1c;display:flex;flex-direction:column;align-items:center;justify-content:center;transition:opacity .6s}#loading.done{opacity:0;pointer-events:none}.load-mark{font-size:65px;font-weight:900;letter-spacing:-7px}.load-mark span{color:var(--acid);font-weight:400;margin:0 8px}#loading p{font-size:8px;letter-spacing:3px;margin-top:22px;color:#a4b6a7}.load-track{width:180px;height:2px;background:#d8ff701a;margin-top:14px;overflow:hidden}.load-track i{height:100%;display:block;width:60px;background:var(--acid);animation:loading 1s ease-in-out infinite alternate}@keyframes loading{to{transform:translateX(120px)}}
@media(min-width:1500px){.hero{top:22%}.program{bottom:80px}.mission{padding:21px}.mission h3{font-size:18px}.menu-foot{bottom:32px}}
@media(max-height:760px) and (min-width:801px){header{padding-top:20px}.hero{top:20%}.hero h1{font-size:68px;margin:16px 0}.hero p{font-size:12px;margin-bottom:20px}.launch{height:50px}.hero-meta{margin-top:10px}.program{bottom:52px}.mission{padding:12px 15px}.mission h3{margin:12px 0 5px}.menu-foot{bottom:18px}}
@media(pointer:coarse){.touch-controls{display:flex;position:absolute;bottom:max(24px,env(safe-area-inset-bottom));left:4%;right:4%;justify-content:space-between;align-items:flex-end}.touch-controls button{user-select:none;-webkit-user-select:none;touch-action:none;backdrop-filter:blur(8px)}.steering{display:flex;flex-wrap:wrap;gap:8px;width:140px;align-items:center}.steering>button{width:62px;height:62px;font-size:40px;background:#10272270;border:1px solid #e1f2de45;border-radius:50%;line-height:1}.steering .brake-control{font-size:8px;letter-spacing:1.3px;height:28px;width:132px;border-radius:4px;color:#b6c9b9;background:#10272240}.flight-buttons{display:flex;align-items:flex-end;gap:12px}.flight-buttons>div{display:flex;flex-direction:column;gap:9px}.small-control{width:49px;height:49px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:1px;border-radius:50%;font-size:23px;line-height:1;background:#10272270;border:1px solid #e1f2de45}.small-control small{font-size:6px;letter-spacing:1px}.lift-control{width:85px;height:100px;border:1px solid #e3ff7e99;border-radius:45px;background:#d8ff7020;color:var(--acid);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px}.lift-control>span{font-size:30px;line-height:1}.lift-control b{font-size:14px;letter-spacing:1px}.lift-control small{font-size:7px;letter-spacing:2px;opacity:.7}.touch-controls button.pressed{background:#d8ff70bb;color:#12221b}.desktop-help{display:none}.instruments{bottom:155px}.speed strong{font-size:44px}.speed{min-width:100px}.pressure{max-width:230px}.altitude strong{font-size:28px}}
@media(max-width:800px){header{padding:22px 6%}.brand{font-size:22px}.brand small{font-size:6px;letter-spacing:1.6px}.research-link{font-size:10px;margin-right:0}.research-link span{margin-left:4px}nav{gap:8px}.icon-button{height:35px;width:35px}nav svg{height:18px;width:18px}.hero{top:16%;left:6%;right:6%}.hero .eyebrow{font-size:7px;letter-spacing:1.6px}.hero h1{font-size:clamp(52px,10vw,76px);margin:17px 0 14px;line-height:.91}.hero p{font-size:12px;line-height:1.6}.hero>.launch{position:fixed;bottom:190px;left:6%;right:6%;width:88%;height:54px}.hero-meta{display:none}.hero-annotation{top:49%;right:6%;font-size:7px}.hero-annotation p{font-size:8px}.hero-annotation i{width:45px;margin:9px 0}.program{left:6%;right:0;bottom:59px;max-height:none}.program-heading{padding-right:6.5%;font-size:7px;letter-spacing:1.3px;margin-bottom:12px}.missions{display:flex;gap:9px;overflow-x:auto;padding-right:6%;scrollbar-width:none;scroll-snap-type:x mandatory}.missions::-webkit-scrollbar{display:none}.mission{min-width:158px;flex:0 0 158px;padding:13px 14px;scroll-snap-align:start}.mission h3{font-size:14px;margin:15px 0 5px}.mission p{font-size:9px}.mission-course{left:48%;top:15px}.mission-course i{width:5px;height:5px}.menu-foot{bottom:20px;left:6%;right:6%;display:block;font-size:7px;line-height:1.7}.menu-foot>span{display:block}.shade{background:linear-gradient(180deg,rgba(8,23,24,.7),transparent 60%),linear-gradient(0deg,rgba(8,23,24,.95),transparent 48%)}.hero p{color:#d5dfd6;text-shadow:0 1px 4px #0004}.hud-top{top:max(22px,env(safe-area-inset-top));gap:14px}.hud-top h2{font-size:16px}.hud-score strong{font-size:23px}.micro{font-size:7px;letter-spacing:1.4px}.course-progress{top:86px}.status-row{top:103px;font-size:7px;gap:13px;letter-spacing:.8px}.next-gate{top:137px}.next-gate strong{font-size:24px}.next-gate>span:last-child{font-size:7px}.flight-hint{top:136px;font-size:10px;max-width:57%;line-height:1.7}.toast{top:30%}.toast b{font-size:25px}.toast span{font-size:8px}.instruments{gap:14px;bottom:154px}.speed{min-width:89px;gap:6px}.speed strong{font-size:43px;letter-spacing:-2px}.speed span{font-size:6px}.pressure{flex:1;max-width:none}.pressure .micro{font-size:6px;letter-spacing:.6px}.pressure>span{font-size:5px;letter-spacing:.8px}.pressure b{font-size:9px}.altitude{min-width:48px}.altitude strong{font-size:26px}.altitude span{font-size:6px;letter-spacing:.4px}.panel{padding:25px;max-height:calc(100dvh - 28px)}.panel h2{font-size:38px;letter-spacing:-1.8px}.panel>p{font-size:12px}.lesson-grid{grid-template-columns:1fr;gap:9px;margin:18px 0}.lesson-grid article{position:relative;padding:14px 14px 14px 62px}.lesson-grid article>span{font-size:7px}.lesson-icon{position:absolute;left:17px;top:21px;font-size:30px;margin:0}.lesson-grid h3{font-size:14px;margin:7px 0}.lesson-grid p{font-size:10px;line-height:1.65}.intro-note{font-size:10px;line-height:1.5;margin:14px 0}.intro-panel>h2{margin:20px 0 12px}.intro-panel .launch{width:100%}.intro-panel{max-width:480px}.result-heading h2{font-size:34px}.result-score strong{font-size:65px}.result-score>span{font-size:7px;letter-spacing:.7px}.result-score b{font-size:7px;margin-left:8px}.medal{width:48px;height:48px}.result-stats{padding:16px 0}.result-stats b{font-size:20px}.result-stats span{font-size:6px}.result-panel .launch{height:50px}.setting{padding:17px 0}}
@media(max-height:680px) and (max-width:800px){.hero{top:16%}.hero h1{font-size:49px;margin:15px 0 10px}.hero p{font-size:10px}.hero-annotation{display:none}.hero>.launch{bottom:170px;height:46px}.program{bottom:48px}.mission{padding:10px 12px}.menu-foot{bottom:11px}.panel h2{font-size:30px}.lesson-grid{margin:12px 0}.lesson-grid article{padding-top:10px;padding-bottom:10px}.intro-panel>p{font-size:11px}.intro-note{margin:10px 0}.lesson-grid h3{margin:5px 0}.panel{padding:21px}}
@media(max-height:500px) and (orientation:landscape){header{padding:16px 4%}.hero{top:22%;left:4%}.hero h1{font-size:48px;margin:10px 0}.hero p{font-size:10px}.hero .eyebrow{font-size:6px}.hero>.launch{position:static;width:200px;min-width:0;height:40px}.hero-meta{display:none}.hero-annotation{display:none}.program{left:auto;right:4%;width:40%;bottom:45px;top:23%;max-height:none}.missions{display:flex;flex-direction:column;overflow:auto;height:100%;gap:5px;padding-bottom:25px}.mission{min-width:0;flex:0 0 auto;width:100%;padding:10px 12px}.mission h3{margin:4px 0;font-size:12px}.mission p{display:none}.mission-course{left:auto;right:30px;top:20px}.mission-top{font-size:7px}.program-heading{margin-bottom:8px}.menu-foot{bottom:12px;display:flex;left:4%;right:4%}.hud-top{top:16px}.hud-top h2{font-size:14px}.course-progress{top:69px}.status-row{top:81px}.next-gate{top:110px}.flight-hint{top:106px}.instruments{bottom:30px;left:27%;right:26%;gap:10px}.instruments .speed{min-width:60px}.speed strong{font-size:35px}.pressure>span{display:none}.instruments .altitude{display:none}.touch-controls{bottom:20px}.steering>button{height:52px;width:52px}.steering{width:118px}.steering .brake-control{width:112px}.lift-control{height:80px;width:65px}.small-control{height:40px;width:40px}.toast{top:35%}.toast b{font-size:21px}.countdown{font-size:70px}.lesson-grid{grid-template-columns:repeat(3,1fr)}.lesson-grid article{padding:14px}.lesson-icon{display:none}.intro-panel h2 br{display:none}.intro-panel h2{margin:12px 0}.intro-panel .launch{height:42px}.intro-panel{width:90%;max-width:900px}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}.load-track i{animation:none}}
@media(max-width:800px) and (orientation:portrait){header{padding-top:max(22px,env(safe-area-inset-top))}.hero>.launch{bottom:calc(190px + env(safe-area-inset-bottom))}.program{bottom:calc(59px + env(safe-area-inset-bottom))}.menu-foot{bottom:calc(15px + env(safe-area-inset-bottom))}}
@media(max-width:800px) and (max-height:680px) and (orientation:portrait){.hero>.launch{bottom:calc(170px + env(safe-area-inset-bottom))}.program{bottom:calc(48px + env(safe-area-inset-bottom))}.menu-foot{bottom:calc(11px + env(safe-area-inset-bottom))}}

/* Gameplay holds must not open iOS selection/loupe UI. Dialog fields remain selectable. */
#world,.hud{-webkit-user-select:none;user-select:none;-webkit-touch-callout:none;touch-action:none}

@media(pointer:coarse) and (orientation:landscape) and (max-height:500px){.flight-buttons .small-control{width:58px;height:58px}.flight-buttons .lift-control{width:74px;height:106px}.flight-buttons{gap:10px}.flight-buttons>div{gap:7px}}
@media(pointer:coarse) and (orientation:landscape) and (max-height:350px){.flight-buttons .small-control{width:56px;height:56px}.flight-buttons .lift-control{width:70px;height:100px}}