:root{--ink:#353251;--muted:#9290a4;--purple:#7760ba;--orange:#f69b60;--paper:#fffdf9;--line:#eee9e5}*{box-sizing:border-box}body{margin:0;background:#f8f6f1;color:var(--ink);font-family:'Trebuchet MS',Arial,sans-serif;font-size:14px}button,a{-webkit-tap-highlight-color:transparent}button{font:inherit;cursor:pointer}button:disabled{cursor:default;opacity:.5}button:focus-visible,a:focus-visible{outline:3px solid #a688e9;outline-offset:3px}header{height:94px;background:#fffdf9;border-bottom:1px solid var(--line);display:flex;align-items:center;max-width:none;padding:0 max(28px,calc((100vw - 1400px)/2));gap:24px}.logo{display:flex;align-items:center;gap:12px;text-decoration:none;color:var(--ink);font-size:28px;font-weight:900;letter-spacing:-1.3px}.logo 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span{display:block;font-size:8px;color:#938d9d;margin-top:4px}.scene-bottom{position:absolute;bottom:14px;left:20px;right:15px;display:flex;justify-content:space-between;align-items:center;gap:10px}.scene-bottom>span{background:#ffffffea;border-radius:20px;padding:9px 12px;font-size:9px;color:#736b85;pointer-events:none}.zoom-controls{display:flex;gap:4px}.zoom-controls button{border:none;background:#fffefbe8;width:30px;height:30px;color:#79718b;font-size:18px;border-radius:9px}.tabs{display:flex;gap:22px;border-bottom:1px solid #e8e2dd;margin-top:21px}.tab{background:none;border:0;padding:13px 0;color:#a39bae;font-size:12px;border-bottom:3px solid transparent;white-space:nowrap}.tab.active{color:#7860b0;border-bottom-color:#a58bcf;font-weight:bold}.section-heading{display:flex;justify-content:space-between;gap:10px;align-items:center;margin:22px 0 15px}.section-heading h2{font-size:16px;letter-spacing:-.4px}.section-heading span{font-size:9px;color:#9993a2}.route-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}.route-card{border:1px solid var(--line);border-radius:17px;background:#fffdf9;display:grid;grid-template-columns:66px 1fr;gap:12px;padding:14px}.destination{border-radius:12px;height:65px;overflow:hidden;background:#e9f5ed;display:grid;place-items:center}.destination svg{width:66px;height:65px}.route-title{display:flex;align-items:center;gap:6px;font-size:14px}.route-title small{font-size:8px;letter-spacing:1px;padding:3px 5px;border-radius:4px;background:#f0edf5;color:#a19aaa}.route-card p{font-size:9px;color:#a29aaa;margin:5px 0}.route-meta{font-size:9px;color:#8b7d96}.route-meta b{color:#c7943e}.route-card button{grid-column:span 2;border:0;border-radius:9px;padding:9px;font-size:10px;font-weight:bold;background:#ece5f9;color:#8a6abb;display:flex;align-items:center;justify-content:space-between}.route-card.locked{background:#f5f2ef}.route-card.locked .destination{filter:grayscale(.6)}aside{display:flex;flex-direction:column;gap:20px;padding-top:2px}.merge-panel{background:#fffdfa;border:1px solid #eee5dc;border-radius:23px;padding:22px;box-shadow:0 6px 20px #73605808}.merge-heading{display:flex;align-items:center;justify-content:space-between}.merge-heading h2{font-size:22px;letter-spacing:-.8px;margin-top:8px}.merge-heading h2 span{color:#e9b85b;font-size:20px;margin-left:10px}.help{width:26px;height:26px;border-radius:50%;border:1px solid #e6dfd9;background:none;color:#a296a6}.merge-intro{font-size:11px;color:#9d94a2;margin:12px 0 20px}.guide-line{font-size:9px;color:#a99ba5;background:#f7f0eb;padding:10px;border-radius:9px;text-align:center;margin-bottom:13px}.board{display:grid;grid-template-columns:repeat(4,1fr);gap:7px;background:#e9f0e8;border:1px solid #d7e5d6;border-radius:16px;padding:9px}.tile{position:relative;aspect-ratio:1;background:#fafff6;border:0;border-radius:11px;box-shadow:0 2px 0 #d4e1d0;padding:7px;display:grid;place-items:center;transition:transform .15s,background .15s}.tile.empty{background:#dde9d9;box-shadow:inset 0 1px 2px #b4cab125}.tile.selected{background:#fff4c8;outline:2px solid #edb661;transform:translateY(-2px)}.tile svg{width:100%;height:100%;filter:drop-shadow(0 3px 1px #76908722)}.tile .tile-level{position:absolute;bottom:2px;right:4px;font-size:8px;font-weight:bold;border-radius:4px;background:#ffffffcf;padding:1px 3px;color:#a08868}.generate{width:100%;display:flex;justify-content:space-between;align-items:center;background:linear-gradient(#ffb275,#f69a5f);box-shadow:0 4px 0 #dc8452;border:1px solid #ee9c60;color:#fffdf6;padding:13px 15px;border-radius:13px;font-weight:bold;margin:18px 0 12px;font-size:12px;text-shadow:0 1px #c9774b}.generate b{font-size:14px}.energy-info{display:flex;justify-content:space-between;font-size:9px;color:#a399a7}.energy-info b{color:#9275b8}.chain{display:flex;gap:1px;justify-content:space-between;align-items:center;border-top:1px dashed #e7ded4;padding-top:16px;margin-top:20px}.chain div{text-align:center;font-size:8px;color:#b0a0a9}.chain svg{width:32px;height:32px;display:block}.chain>span{font-size:10px;color:#c9b9c9}.tip{font-size:10px;line-height:1.6;color:#a293a2;margin-top:15px}.captain-card{position:relative;min-height:160px;background:#eee7f7;border-radius:22px;padding:24px;display:flex;gap:17px;align-items:center;overflow:hidden}.captain-card:after{content:'';position:absolute;width:100px;height:100px;border:20px solid #ffffff44;border-radius:50%;right:-25px;top:-28px}.captain-avatar{width:57px;height:57px;border-radius:50%;background:#d8c9ec;display:grid;place-items:center;font-size:34px;color:#fff8fb;transform:rotate(-12deg)}.captain-card h3{font-size:18px;margin:7px 0}.captain-card p{font-size:11px;color:#9b87b0;line-height:1.6}.signature{position:absolute;right:22px;bottom:16px;font:italic 12px Georgia;color:#aa93bd}.fleet-grid,.upgrade-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}.fleet-card,.upgrade-card,.mission-card{border:1px solid #eae2da;background:#fffdf9;border-radius:15px;padding:16px;margin-bottom:10px}.fleet-card svg{width:80px;height:55px;float:right}.fleet-card h3,.upgrade-card h3,.mission-card h3{font-size:13px;margin-bottom:8px}.fleet-card p,.upgrade-card p,.mission-card p{font-size:10px;color:#9d8e9e;line-height:1.6}.fleet-card button,.upgrade-card button,.mission-card button{border:0;border-radius:8px;background:#eee5fa;color:#8b6db5;padding:8px 12px;margin-top:12px;font-size:10px}.upgrade-grid{grid-template-columns:repeat(3,1fr);margin-top:10px}.progress{height:5px;background:#eee8f1;border-radius:4px;margin-top:12px;overflow:hidden}.progress i{display:block;height:100%;background:#baa4df;border-radius:4px}.mission-card{display:flex;align-items:center;justify-content:space-between;gap:10px}.mission-card button{margin:0;white-space:nowrap}.log-panel{margin:24px 0 0;border-top:1px dashed #e5dcd3;padding:17px 0 0}.log-panel #history{font-size:10px;color:#a093a5;line-height:1.9;margin-top:8px}.hidden{display:none!important}footer{max-width:1344px;margin:8px auto 0;padding:20px 0 30px;border-top:1px solid #ece5de;font-size:9px;letter-spacing:1.5px;color:#b7abae;display:flex;justify-content:space-between}footer span{letter-spacing:0;font-size:9px}#toast{position:fixed;bottom:25px;left:50%;transform:translate(-50%,20px);background:#51416b;color:#fff8ff;border-radius:14px;padding:13px 22px;box-shadow:0 8px 30px #403b5233;font-size:12px;opacity:0;transition:.2s;pointer-events:none;z-index:100;max-width:90vw;text-align:center}#toast.show{opacity:1;transform:translate(-50%,0)}dialog{max-width:440px;width:90vw;border:1px solid #e7d6ef;border-radius:24px;padding:30px;background:#fffdf9;color:#514467;box-shadow:0 20px 100px #3f2b5f40}dialog::backdrop{background:#45335366;backdrop-filter:blur(5px)}dialog h2{font-size:23px;margin:12px 0}dialog li{font-size:13px;line-height:1.7;margin-bottom:8px}dialog p{font-size:11px;line-height:1.6;color:#a08eaa}.dialog-close{float:right;border:0;background:none;color:#a08eaa;font-size:25px} @media(min-width:1600px){.airport-frame{height:510px}}@media(max-width:1050px){main{grid-template-columns:minmax(0,1fr) 310px;gap:18px;padding:24px 18px}.merge-panel{padding:17px}.page-title{display:block}.daily{margin-top:12px}h1{font-size:25px}.airport-frame{height:450px}.route-grid{grid-template-columns:1fr}.section-heading span{display:none}header{padding:0 20px}.resource{min-width:110px}footer{margin:0 20px}}@media(max-width:760px){header{height:76px;padding:0 14px;gap:10px}.logo{font-size:22px;gap:7px}.logo-mark{width:37px;height:37px;font-size:23px}.logo small{font-size:7px}.resource-bar{gap:6px}.resource{min-width:75px;padding:6px;grid-template-columns:20px 1fr;gap:3px;height:39px}.resource b{font-size:13px}.resource>span{font-size:22px}.resource small{font-size:6px}.level{display:none}.sound-btn{width:30px;height:35px;font-size:20px}main{display:flex;flex-direction:column;padding:22px 12px;gap:24px}.page-title{margin:0 4px 18px;position:relative}h1{font-size:23px;max-width:320px}.eyebrow{font-size:8px}.daily{position:absolute;right:0;top:-2px;padding:7px;font-size:8px}.page-title .eyebrow{max-width:190px;display:block;line-height:1.5}.airport-frame{height:360px;border-width:3px;border-radius:20px}.airport-badge{top:12px;left:12px;padding:9px;font-size:7px}.weather{top:12px;right:12px;padding:9px}.tabs{gap:16px}.tab{font-size:10px}.route-grid{grid-template-columns:repeat(2,1fr);gap:8px}.route-card{grid-template-columns:40px 1fr;padding:10px;gap:8px}.destination,.destination svg{width:40px;height:48px}.route-title{font-size:11px}.route-title small{display:none}.route-card p{font-size:8px}.route-card button{font-size:9px}.route-meta{font-size:8px}.merge-panel{padding:22px;max-width:460px;width:100%;margin:auto}.board{gap:9px}.tile{padding:10px}.captain-card{display:none}aside{padding:0}.upgrade-grid{grid-template-columns:1fr}.section-heading h2{font-size:15px}.scene-bottom{left:12px}.scene-bottom>span{font-size:8px;padding:8px}.fleet-grid{grid-template-columns:1fr}footer{font-size:8px;display:block;line-height:1.8;margin:0 12px}footer span{display:block;font-size:8px}.sound-btn.on{background:#eee5fa}}
/* Operations edition: calmer materials, larger airport, readable metrics. */
:root{--ink:#243b4c;--muted:#758a97;--purple:#396d8e;--paper:#f7fafb;--line:#dfe7ec}body{background:#eef2f4;color:#273e4f}header{background:#fafdfe;border-color:#dae3e8}.logo-mark{background:#dbeaf2;color:#487f9d}.logo-dot{color:#dc9c64}.resource{background:#edf3f6;border-color:#dce5eb}.resource small,.eyebrow{color:#7a909e}.level{background:#dceaf2;color:#427390}.page-title p{color:#78909e}.airport-frame{height:555px;background:#9fb6bc;border-color:#fbfdff;box-shadow:0 9px 30px #142d4322}.airport-badge{color:#3d5b6d}.weather b{color:#426375}.weather span{font-size:8px}.ops-strip{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin:18px 0}.ops-strip>div{border:1px solid #dbe5eb;border-radius:12px;padding:12px 16px;background:#f8fcfd}.ops-strip small{display:block;font-size:8px;letter-spacing:1.3px;color:#8699a5}.ops-strip b{display:block;font-size:21px;margin-top:6px;color:#3d738b}.policy-bar{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:12px 16px;background:#e2ebf1;border-radius:12px}.policy-bar label{font-size:12px;font-weight:bold;color:#536e80}.policy-bar select{font:inherit;font-size:11px;color:#406079;border:1px solid #c5d5df;padding:8px;border-radius:8px;background:#f9fcfd;max-width:100%}.tabs{border-color:#d4e0e7}.tab{color:#8b9da9}.tab.active{color:#41718d;border-color:#4d89a6}.route-card,.fleet-card,.upgrade-card,.mission-card{background:#fafdfe;border-color:#d7e3ea}.route-card p{color:#7c929f;font-size:10px}.route-meta{color:#7b8f9b}.route-meta b{color:#3e7e83}.route-card button,.fleet-card button,.upgrade-card button,.mission-card button{background:#e0edf3;color:#49788f}.route-card.locked{background:#e9eff3}.route-title small{color:#6e899b;background:#e8eff3}.merge-panel{background:#f8fcfd;border-color:#d8e4eb}.merge-intro,.tip{color:#78919f}.guide-line{background:#e4edf1;color:#718895}.board{background:#d9e5ea;border-color:#c3d7df}.tile{background:#f5fbfd;box-shadow:0 2px #b9ced8}.tile.empty{background:#c9dbe3}.generate{background:linear-gradient(#5896b5,#3e7f9f);box-shadow:0 4px #2b627e;border-color:#468dad;text-shadow:0 1px #2c5974}.captain-card{background:#dce8ef}.captain-avatar{background:#b9d1df}.captain-card p{color:#7494a7}.captain-card .signature{color:#7898aa}.progress{background:#e3ecf0}.progress i{background:#71a2b4}.fleet-card p b{color:#477d90}#toast{background:#284b63}.chain{border-color:#cfdfe7}.chain div{color:#8ca1ad}.energy-info,.log-panel #history{color:#8295a2}.section-heading span{color:#889ba7}.sound-btn.on{background:#dceaf2}footer{border-color:#d3e0e6;color:#879ca9}@media(max-width:760px){.airport-frame{height:390px}.ops-strip{gap:6px}.ops-strip>div{padding:10px}.ops-strip small{font-size:6px}.ops-strip b{font-size:18px}.policy-bar{padding:10px;display:block}.policy-bar select{display:block;width:100%;margin-top:8px}.weather b{font-size:10px}.route-card p{font-size:9px}}
/* Contract choices make each shift a strategic, changing objective. */
.contracts-panel{margin:18px 0 14px;background:#fafdfe;border:1px solid #d9e4e9;border-radius:16px;padding:16px}.contracts-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:10px}.contracts-head h2{font-size:15px;margin-top:5px}.market-clock{font-size:9px;color:#738c99;background:#e8f0f3;border-radius:20px;padding:7px 9px;white-space:nowrap}.market-banner{display:flex;gap:8px;align-items:baseline;background:#e7eff2;border-left:3px solid #d3a65f;border-radius:8px;padding:9px 11px;margin-bottom:10px;color:#486579;font-size:10px}.market-banner span{color:#788e9a;font-size:9px}.contract-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px}.contract-card{position:relative;min-width:0;background:#fff;border:1px solid #e0e7e8;border-radius:11px;padding:11px}.contract-card h3{font-size:12px;margin:8px 0 5px;color:#314e60}.contract-card p{font-size:9px;line-height:1.45;color:#7e929c;min-height:27px}.contract-card small{font-size:8px;color:#8497a0;display:block;margin-top:8px}.contract-top{display:flex;align-items:center;justify-content:space-between;gap:4px}.contract-top span{font-size:7px;letter-spacing:.7px;color:#628393;font-weight:bold}.contract-top b{font-size:9px;color:#a37a37;white-space:nowrap}.contract-card button{margin-top:10px;width:100%;font-size:9px;border:0;border-radius:7px;padding:8px;background:#e3eef1;color:#426f83}.contract-card button:disabled{opacity:.4}.active-contract{background:#eef5f5;border-color:#cddfe1}.contract-progress{height:4px;margin-top:8px;background:#dbe5e4;border-radius:5px;overflow:hidden}.contract-progress i{height:100%;display:block;background:#70a59b;border-radius:5px}.route-contract{color:#9c753b!important;font-weight:bold}.ops-strip{margin-top:10px}@media(max-width:1000px){.contract-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.contract-card:last-child:nth-child(odd){grid-column:1/-1}}@media(max-width:760px){.contracts-panel{padding:12px}.contract-grid{grid-template-columns:1fr}.contract-card:last-child:nth-child(odd){grid-column:auto}.contract-card{padding:12px}.contract-card p{min-height:0}.market-banner{align-items:flex-start;flex-direction:column;gap:3px}}

#airport{touch-action:none;cursor:grab}.webgl-fallback{height:100%;display:grid;place-items:center;padding:28px;background:linear-gradient(145deg,#dde7e9,#a2bbc2);color:#314e60;text-align:center;font-weight:bold;border-radius:20px}

/* High-detail in-game airport art */
.airport-frame.airport-illustration{background:#87b8dc;cursor:grab;touch-action:none}
.airport-frame.airport-illustration:before{content:none}
.airport-frame.airport-illustration:after{content:"";position:absolute;inset:0;z-index:1;background:linear-gradient(180deg,#0a1c3a00,#10274210);opacity:0;pointer-events:none;transition:opacity .35s}
.airport-frame.airport-illustration.scene-night:after{opacity:.46;background:linear-gradient(180deg,#081a3acc,#10254677)}
.airport-frame.airport-illustration.scene-rain:before{filter:saturate(.78) brightness(.78)}
.airport-frame.airport-illustration.scene-wind:before{filter:saturate(.9) brightness(.94)}
.airport-frame.airport-illustration #airport{display:none}
.airport-ambience{position:absolute;inset:0;z-index:2;pointer-events:none;overflow:hidden}
.scene-rain .airport-ambience{background:repeating-linear-gradient(108deg,transparent 0 17px,#d8efff60 18px,#d8efff60 19px,transparent 20px 33px);animation:rainSweep .5s linear infinite}
.scene-wind .airport-ambience:before,.scene-wind .airport-ambience:after{content:"";position:absolute;width:34%;height:2px;border-radius:50%;background:#fff9;left:-40%;top:31%;animation:windSweep 5s linear infinite}
.scene-wind .airport-ambience:after{top:44%;animation-delay:2s;width:24%}
@keyframes rainSweep{to{background-position:0 33px}}@keyframes windSweep{to{transform:translateX(450%)}}
.airport-flight-layer{position:absolute;inset:0;z-index:3;pointer-events:none;overflow:hidden}
.active-flight-sprite{position:absolute;left:0;top:var(--flight-top,15%);width:clamp(140px,19vw,245px);height:auto;filter:drop-shadow(0 9px 10px #102b3a40);animation:flightAcross 10s cubic-bezier(.25,.05,.72,.45) both}
@keyframes flightAcross{0%{transform:translate(-120%,-8px) scale(.42);opacity:0}8%{opacity:1}88%{opacity:1}100%{transform:translate(calc(100vw + 240px),-40px) scale(.9);opacity:0}}
.airport-badge,.weather,.scene-bottom{z-index:4}
@media(max-width:760px){.airport-frame.airport-illustration:before{background-position:center;background-size:auto 100%}.active-flight-sprite{width:160px}}

/* Coordinated apron service: airport routes, deliberate loading stops and return trips */
.airport-ground-traffic{position:absolute;inset:0;z-index:1;overflow:hidden;pointer-events:none}
.ground-vehicle{position:absolute;display:block;height:auto;max-width:none;object-fit:contain;filter:drop-shadow(0 3px 4px #112d3d45);will-change:left,top,transform}
.ground-shuttle{width:clamp(72px,9vw,122px);animation:terminalShuttle 38s ease-in-out infinite;animation-delay:-9s}
.ground-baggage{width:clamp(105px,13vw,174px)}
.tug-blue-stand{animation:baggageBlue 44s ease-in-out infinite;animation-delay:-16s}
.tug-orange-stand{animation:baggageOrange 51s ease-in-out infinite;animation-delay:-31s}
/* Terminal loop: depart the gate, pause for passengers, then return on the same apron lane. */
@keyframes terminalShuttle{0%,12%{left:42%;top:47%;transform:scale(.54);opacity:.9}36%{left:50%;top:50%;transform:scale(.62);opacity:1}48%,58%{left:55%;top:52%;transform:scale(.66);opacity:1}82%{left:47%;top:49%;transform:scale(.58);opacity:1}94%,100%{left:42%;top:47%;transform:scale(.54);opacity:.9}}
/* Bag-transfer trips stop beside each parked aircraft before returning to the terminal. */
@keyframes baggageBlue{0%,13%{left:27%;top:51%;transform:scale(.48);opacity:.96}32%{left:34%;top:55%;transform:scale(.56);opacity:1}43%,57%{left:38%;top:58%;transform:scale(.61);opacity:1}78%{left:31%;top:54%;transform:scale(.52);opacity:1}92%,100%{left:27%;top:51%;transform:scale(.48);opacity:.96}}
@keyframes baggageOrange{0%,16%{left:56%;top:57%;transform:scale(.57);opacity:.96}34%{left:63%;top:61%;transform:scale(.68);opacity:1}46%,62%{left:70%;top:64%;transform:scale(.74);opacity:1}84%{left:61%;top:60%;transform:scale(.63);opacity:1}96%,100%{left:56%;top:57%;transform:scale(.57);opacity:.96}}
.airport-foot-traffic{position:absolute;inset:0;z-index:2;overflow:hidden;pointer-events:none}
.walking-passenger{position:absolute;left:46%;top:42.5%;width:5px;height:10px;border-radius:3px 3px 1px 1px;background:#26374a;box-shadow:0 0 2px #fff9;animation:boardingFlow 28s ease-in-out infinite;will-change:transform,opacity}
.walking-passenger:before{content:"";position:absolute;left:1px;top:-4px;width:4px;height:4px;border-radius:50%;background:#d8a67b}
.walking-passenger:after{content:"";position:absolute;left:5px;top:5px;width:4px;height:6px;border-radius:1px;background:#da8b3d;box-shadow:2px 4px 0 -1px #26374a}
.passenger-2{top:43.2%;animation-delay:-5s;filter:hue-rotate(70deg)}.passenger-3{top:41.8%;animation-delay:-10s;filter:hue-rotate(165deg)}.passenger-4{top:44%;animation-delay:-15s;filter:hue-rotate(250deg)}
/* Short walk, wait at the gate, then clear the path; no constant random wandering. */
@keyframes boardingFlow{0%,8%{transform:translate(0,0) scale(.65);opacity:0}12%{opacity:1}26%{transform:translate(24px,2px) scale(.74);opacity:1}48%,66%{transform:translate(24px,2px) scale(.74);opacity:1}82%{transform:translate(48px,4px) scale(.84);opacity:1}92%,100%{transform:translate(48px,4px) scale(.84);opacity:0}}
@media(max-width:760px){.ground-shuttle{width:74px}.ground-baggage{width:105px}.walking-passenger{left:40%}}
@media(prefers-reduced-motion:reduce){.ground-vehicle,.walking-passenger{animation-duration:90s!important}}