:root{--bg:#041018;--bg2:#071a23;--panel:#071722;--panel2:#0a1c27;--stroke:#1c3d49;--green:#36e7a2;--mint:#7affb7;--cyan:#50d9ef;--muted:#7e9aa8;--text:#edf7fa;--gold:#f7c94b;--mono:'IBM Plex Mono',monospace;--head:'Barlow Condensed','Arial Narrow',sans-serif;--body:Inter,system-ui,sans-serif}
*{box-sizing:border-box}html,body{margin:0;min-height:100%;background:var(--bg);color:var(--text);font-family:var(--body)}body{background:radial-gradient(circle at 46% 36%,#103041 0%,#061720 51%,#030c13 100%)}button,input{font:inherit}button{cursor:pointer}a{color:var(--cyan)}.accent,.teal{color:var(--green)!important}.app-shell{width:100%;min-height:100vh;min-height:100dvh;display:flex;flex-direction:column;overflow:hidden}.topbar{height:91px;flex-shrink:0;display:flex;align-items:center;justify-content:space-between;padding:0 26px;border-bottom:1px solid #1b3540;background:linear-gradient(90deg,#071722 0%,#06151e 100%);gap:16px}.branding{display:flex;align-items:center;gap:18px}.brand-icon{color:#effaff;width:62px;height:62px}.brand-icon svg{width:100%;height:100%}h1{font-family:var(--head);font-weight:800;letter-spacing:1.2px;font-size:35px;line-height:1;margin:0}h1 span{color:var(--green)}.subtitle{font-family:var(--mono);font-size:12px;letter-spacing:1.6px;color:#aac5d4;margin-top:6px}.top-actions{display:flex;align-items:center;gap:19px}.mode-badge{border:1px solid #15523f;border-radius:9px;color:var(--green);padding:9px 12px;display:flex;align-items:center;gap:8px;font-family:var(--mono);font-weight:600;font-size:12px;letter-spacing:.8px;background:#06251e}.status-dot,.pulse-dot,.tiny-dot{width:9px;height:9px;flex-shrink:0;border-radius:50%;background:var(--green);box-shadow:0 0 14px #31f2a2}.mode-badge.demo{color:var(--gold);border-color:#745a20;background:#2a220e}.mode-badge.demo .status-dot{background:var(--gold);box-shadow:0 0 14px #e9b43f}.mode-badge.error{color:#ff8d83;border-color:#7b3633;background:#251516}.mode-badge.error .status-dot{background:#ff8d83;box-shadow:none}.datetime{white-space:nowrap;color:#bed0da;font:11px var(--mono)}.icon-btn{background:#081923;border:1px solid #2b4756;color:#cfe5ed;min-width:43px;height:36px;border-radius:8px;font:600 11px var(--mono)}.icon-btn:hover{border-color:var(--green);color:var(--green)}
.workarea{display:grid;grid-template-columns:72px minmax(217px,245px) minmax(370px,1fr) minmax(268px,304px);flex:1;min-height:0;gap:0}.rail{border-right:1px solid var(--stroke);background:rgba(3,15,22,.82);padding:11px 0;display:flex;flex-direction:column;gap:5px}.rail-btn{display:flex;flex-direction:column;align-items:center;gap:7px;background:none;border:0;border-left:3px solid transparent;padding:18px 3px;color:#9ab3c1;font:12px var(--body)}.rail-btn span{font-size:26px;line-height:1}.rail-btn small{font-size:10px}.rail-btn:hover,.rail-btn.active{color:var(--green);background:#0b2d32;border-left-color:var(--green)}.left-stack,.right-stack{padding:17px 11px;display:flex;flex-direction:column;gap:12px;min-width:0}.left-stack{border-right:1px solid #15303a;background:linear-gradient(90deg,#05121c,#071b24)}.right-stack{border-left:1px solid #15303a;background:linear-gradient(270deg,#05121c,#071a24)}.panel{border:1px solid var(--stroke);border-radius:12px;padding:14px 13px;background:linear-gradient(160deg,rgba(8,28,38,.96),rgba(5,18,27,.94));box-shadow:inset 0 1px 0 #15384759;min-width:0}.panel h2{font-family:var(--head);font-size:17px;letter-spacing:.7px;font-weight:700;margin:0 0 11px;padding:0 0 10px;border-bottom:1px solid #153440;white-space:nowrap}.panel h2 .accent,.panel h2 .weather-icon{font:22px var(--body);margin-right:5px}.info-row,.airport-row{display:flex;justify-content:space-between;gap:8px;align-items:center;font-size:11px;padding:8px 0;border-bottom:1px solid #17323b55}.info-row:last-child,.airport-row:last-child{border:0}.info-row span{white-space:nowrap}.info-row strong,.airport-row strong{color:#a1b4c3;font:500 10px var(--mono);white-space:nowrap}.airport-row span{color:#d6eaf2}.airport-row b{font:600 11px var(--mono);color:#e1edf4;margin-right:5px}.weather-panel{margin-top:auto}.weather-icon{color:#7bbdff}.weather-main{display:flex;align-items:center;gap:10px;margin-bottom:12px}.weather-symbol{font-size:34px;color:#ffdc69}.temp{font:700 32px var(--head);letter-spacing:.4px}.weather-sub{font-size:11px;color:#a2bac6}.wx-row{display:flex;justify-content:space-between;font-size:11px;padding:6px 0;border-bottom:1px solid #15333d}.wx-row b{font:500 11px var(--mono)}.wx-raw{font:9px/1.6 var(--mono);color:#789fae;padding:9px 0;overflow-wrap:anywhere}.weather-loading,.placeholder{font-size:12px;color:#86a2b1;line-height:1.5;padding:15px 0}.attribution-link,.sidebar-footer{font:8px var(--mono);letter-spacing:.2px;color:#77a2ad;text-decoration:none}.sidebar-footer{display:flex;align-items:center;gap:8px;justify-content:center;margin-top:4px}.tiny-dot{width:5px;height:5px;box-shadow:none}
.radar-section{padding:14px 13px 6px;min-width:0;display:flex;flex-direction:column;align-items:center;justify-content:center;background:radial-gradient(circle at 50% 50%,#0e2834 0%,#05141d 70%);position:relative}.radar-toolbar{display:flex;align-items:center;justify-content:space-between;width:100%;margin-bottom:9px;gap:6px;max-width:850px}.toolbar-meta{font:500 10px var(--mono);color:#afc9d2;letter-spacing:.4px;white-space:nowrap;display:flex;align-items:center;gap:8px}.pulse-dot{width:6px;height:6px}.thin-divider{height:11px;width:1px;background:#3c5760}.range-switch{display:flex;gap:5px;align-items:center}.range-switch button{border:1px solid #315363;border-radius:7px;color:#afc0cc;background:#081a24;padding:8px 10px;white-space:nowrap;font:600 11px var(--mono)}.range-switch button small{font:inherit;font-size:9px;color:#759aab}.range-switch button.selected,.range-switch button:hover{border-color:var(--green);background:#08382c;color:#8dffcf;box-shadow:inset 0 0 0 1px #28a879;}.range-switch>span{font:11px var(--mono);color:#9fc2d2}.radar-frame{width:100%;max-width:min(100%,calc(100dvh - 193px),790px);aspect-ratio:1;border:2px solid #46d4a2;border-radius:50%;position:relative;overflow:hidden;background:radial-gradient(circle at 47% 52%,#163a38 0%,#071e2a 56%,#050f18 100%);box-shadow:0 0 0 6px #071c24,0 0 0 7px #204f4d,0 0 60px #0a9b6d2a,inset 0 0 70px #072f29;isolation:isolate}.radar-frame.map-off #map{opacity:0}#map{position:absolute;inset:0;z-index:0;filter:brightness(.76) saturate(.78) hue-rotate(12deg);pointer-events:none}.map-tint{position:absolute;inset:0;z-index:1;pointer-events:none;background:radial-gradient(circle,transparent 28%,#03282110 62%,#00131a71 100%);}.radar-sweep{position:absolute;inset:-1px;pointer-events:none;z-index:3;animation:radarSweep 9s linear infinite;background:conic-gradient(from 0deg at 50% 50%,transparent 0deg,transparent 326deg,#23c97605 330deg,#31e79b16 343deg,#5affa04b 357deg,transparent 359deg);mix-blend-mode:screen}.radar-sweep.paused{animation:none;opacity:0}@keyframes radarSweep{to{transform:rotate(360deg)}}.radar-grid{position:absolute;inset:0;pointer-events:none;z-index:4}.ring{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);border:1px solid #3ee99b76;border-radius:50%;box-shadow:0 0 2px #11ac6b22}.ring-25{width:25%;height:25%}.ring-50{width:50%;height:50%}.ring-75{width:75%;height:75%}.ring-100{width:99%;height:99%;border-color:#44e39a}.axis{position:absolute;background:#3ddb9b77}.axis-h{height:1px;left:0;right:0;top:50%}.axis-v{width:1px;top:0;bottom:0;left:50%}.compass{position:absolute;color:#d4ffec;font:700 20px var(--mono);z-index:8;text-shadow:0 1px 5px #000}.compass-n{top:2.1%;left:50%;transform:translateX(-50%)}.compass-s{bottom:2%;left:50%;transform:translateX(-50%)}.compass-e{right:2%;top:50%;transform:translateY(-50%)}.compass-w{left:2%;top:50%;transform:translateY(-50%)}.range-mark{position:absolute;z-index:6;color:#b3e9bf;font:500 10px var(--mono);left:50%;margin-left:8px;text-shadow:0 1px 5px #000}.range-mark-25{top:39%}.range-mark-50{top:27%}.range-mark-75{top:15%}.range-mark-100{top:8%}.aircraft-layer,.place-layer{position:absolute;inset:0;z-index:10;pointer-events:none}.place-layer{z-index:5}.place-marker{position:absolute;transform:translate(-50%,-50%);display:flex;flex-direction:column;align-items:center;gap:2px;color:#d0e9e7;text-shadow:0 1px 4px #000,0 0 7px #001a1b;white-space:nowrap;font:600 clamp(8px,1vw,12px) var(--body)}.place-dot{width:7px;height:7px;border:2px solid #e4f6ef;border-radius:100%;box-shadow:0 0 4px #000;background:#0c2f2d}.radar-origin{position:absolute;z-index:13;top:50%;left:50%;transform:translate(-50%,-18%);display:flex;flex-direction:column;align-items:center;gap:8px;font-size:12px;font-weight:700;text-shadow:0 2px 5px #000;pointer-events:none}.origin-ping{border:2px solid #d9fff5;border-radius:50%;height:11px;width:11px;background:#176bc3;box-shadow:0 0 0 4px #0a2536,0 0 10px #39b9ff}.radar-caption{position:absolute;z-index:11;bottom:8%;left:50%;transform:translateX(-50%);white-space:nowrap;font:8px var(--mono);letter-spacing:1px;color:#b9fbd5;background:#02172291;border:1px solid #2b735b;padding:4px 7px;border-radius:5px}.signal-corner{position:absolute;bottom:10%;left:7%;font:9px var(--mono);z-index:10;color:#c6ead1}.radar-empty{position:absolute;bottom:14%;width:80%;left:10%;text-align:center;z-index:19;padding:8px;border:1px solid #417460;border-radius:7px;background:#041b24d9;color:#c2e1db;font:11px var(--mono)}.plane-marker{position:absolute;left:0;top:0;transform:translate(-50%,-50%);pointer-events:auto;cursor:pointer;display:flex;align-items:center;gap:4px;z-index:1;transition:left 4s linear,top 4s linear;filter:drop-shadow(0 1px 3px #00151d)}.plane-marker svg{width:25px;height:25px;flex-shrink:0;overflow:visible;transform:rotate(var(--heading));color:#47e8c2;filter:drop-shadow(0 0 4px #21f7bd9e)}.plane-marker .plane-label{display:flex;flex-direction:column;gap:2px;font:600 10px var(--mono);text-shadow:0 1px 4px #000,0 0 6px #000;color:#e5fff4;line-height:1.2;white-space:nowrap;max-width:100px}.plane-label em{font:500 9px var(--mono);color:#b3e1dc;font-style:normal}.plane-marker.selected svg{color:var(--gold);filter:drop-shadow(0 0 7px #f6d352)}.plane-marker.selected .plane-label{color:var(--gold)}.plane-marker.selected{z-index:3}.plane-marker:hover{z-index:5}.plane-marker:focus-visible{outline:2px solid var(--green)}.plane-marker .plane-label.is-hidden{display:none}.radar-bottom{width:100%;display:flex;justify-content:space-between;align-items:center;padding-top:13px;gap:5px;font:9px var(--mono);color:#8dacbb;max-width:850px}.mobile-bottom{display:none}
.selected-panel{min-height:260px}.selected-main{display:flex;gap:8px;align-items:flex-start;border-bottom:1px solid #22414a;padding:2px 0 14px}.selected-icon{font-size:40px;line-height:1;color:var(--gold)}.selected-heading{flex:1;min-width:0}.selected-heading .callsign{font:800 30px var(--head);letter-spacing:.5px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.selected-heading .reg{font:500 10px var(--mono);color:var(--cyan);margin-top:2px}.selected-heading .type-name{font-size:11px;color:#d2e3eb;margin-top:8px}.selected-stats{display:grid;grid-template-columns:1fr 1fr;gap:0;padding:3px 0}.stat{padding:11px 5px;border-bottom:1px solid #19333e;min-width:0}.stat:nth-child(odd){border-right:1px solid #19333e}.stat label{font-size:10px;color:#82a8b7;display:block;margin-bottom:6px}.stat b{font:600 12px var(--mono);color:#f2fafe;white-space:nowrap}.selected-route{display:flex;justify-content:space-between;font-size:10px;border-bottom:1px solid #173440;padding:11px 3px;color:#87a7b5;gap:10px}.selected-route b{color:#d1e5ec;font:500 11px var(--mono)}.selected-bottom{font:9px var(--mono);color:#80a9b7;line-height:1.7;margin-top:9px}.panel-count{color:#89b1c2;font:500 11px var(--mono)}.table-panel{flex:1;min-height:230px;display:flex;flex-direction:column}.table-head,.aircraft-row{display:grid;grid-template-columns:minmax(80px,1.25fr) minmax(42px,.65fr) minmax(60px,.87fr) minmax(49px,.72fr);align-items:center;gap:5px}.table-head{color:#7899a8;border-bottom:1px solid #1c3a44;padding:0 0 7px;font:500 9px var(--mono)}.table-head span:last-child,.aircraft-row span:last-child{text-align:right}.aircraft-row{padding:10px 0;border:0;border-bottom:1px solid #14303b80;background:transparent;color:#d7ebf1;text-align:left;font:500 10px var(--mono);width:100%;cursor:pointer}.aircraft-row>span{overflow:hidden;white-space:nowrap;text-overflow:ellipsis}.aircraft-row .row-flight{font-weight:600}.aircraft-row.current{color:var(--gold)}.aircraft-row:hover{color:var(--green)}.aircraft-list{overflow-y:auto;min-height:0;scrollbar-color:#28515b transparent;scrollbar-width:thin}.right-footer{display:flex;align-items:center;justify-content:space-between;color:#87a3b2;font:9px var(--mono);padding:0 3px;gap:6px}.right-footer div{display:flex;align-items:center;gap:5px}.right-footer .legend-plane{height:6px;width:6px;border-radius:50%;background:var(--green)}.right-footer .legend-plane.high{background:var(--gold)}.mobile-aircraft{display:none}
.settings-dialog{border:1px solid #386d6b;border-radius:14px;background:#071b25;color:#e6f8fa;box-shadow:0 15px 50px #000a;max-width:430px;width:calc(100% - 32px);padding:0}.settings-dialog::backdrop{background:#020d14d9}.settings-dialog form{padding:22px}.dialog-head{display:flex;justify-content:space-between;align-items:center}.dialog-head h2{font:700 26px var(--head);margin:0}.close-dialog{background:none;border:0;color:#e0f4f7;font-size:20px}.settings-dialog p{font:12px/1.7 var(--body);color:#92b4be}.switch-line{display:flex;align-items:center;justify-content:space-between;padding:13px 2px;font:12px var(--body);border-bottom:1px solid #173b48}.switch-line input{accent-color:var(--green);width:18px;height:18px}.settings-explain{font:10px/1.6 var(--mono);color:#86adba;margin:19px 0}.settings-explain code{color:var(--green)}.primary-button{width:100%;border:1px solid #45e1a2;background:#0b4937;color:#b4ffdd;font:600 13px var(--mono);border-radius:8px;padding:12px}
@media(min-width:1600px){.workarea{grid-template-columns:82px 276px minmax(500px,1fr) 345px}.left-stack,.right-stack{padding:22px 16px}.radar-section{padding:20px 24px}.panel{padding:17px}.panel h2{font-size:20px}.info-row,.airport-row,.wx-row{font-size:12px}.selected-heading .callsign{font-size:34px}.table-head,.aircraft-row{font-size:11px}}
@media(max-width:1199px) and (min-width:751px){.workarea{grid-template-columns:55px 190px minmax(325px,1fr) 238px}.topbar{height:78px;padding:0 15px}h1{font-size:29px}.brand-icon{width:48px;height:48px}.subtitle{font-size:9px}.rail-btn{padding:16px 0}.left-stack,.right-stack{padding:11px 7px;gap:8px}.panel{padding:10px 8px}.panel h2{font-size:15px}.info-row,.airport-row{font-size:10px}.info-row strong,.airport-row strong{font-size:9px}.radar-section{padding:10px 7px}.radar-frame{max-width:min(100%,calc(100dvh - 185px))}.range-switch button{padding:6px}.datetime{display:none}.selected-heading .callsign{font-size:24px}.stat b{font-size:10px}.table-head,.aircraft-row{font-size:9px;grid-template-columns:1.2fr .55fr .9fr .8fr}}
@media(max-width:750px){html,body{height:100%;overflow:hidden}.app-shell{height:100dvh;min-height:0}.topbar{height:55px;padding:0 10px;border-bottom:1px solid #28514c}.brand-icon{width:30px;height:30px}.branding{gap:7px}h1{font-size:22px;letter-spacing:.5px}.subtitle{font-size:7px;letter-spacing:.6px;margin-top:3px}.top-actions{gap:6px}.mode-badge{padding:5px 7px;font-size:9px}.status-dot{width:6px;height:6px}.datetime{display:none}.icon-btn{height:29px;min-width:32px;font-size:9px}.workarea{display:flex;flex:1;min-height:0}.rail,.left-stack,.right-stack{display:none}.radar-section{width:100%;padding:6px 6px 0;justify-content:center;background:radial-gradient(circle,#0d2930,#04121b)}.radar-toolbar{margin:0 0 6px;justify-content:center}.toolbar-meta{font-size:9px}.range-switch-desktop{display:none}.radar-frame{width:min(calc(100vw - 14px),calc(100dvh - 177px));max-width:none;min-width:0;aspect-ratio:1}.compass{font-size:clamp(11px,3vw,15px)}.place-marker{font-size:clamp(7px,2vw,10px)}.place-dot{height:5px;width:5px}.plane-marker svg{width:20px;height:20px}.plane-marker .plane-label{font-size:8px}.plane-label em{font-size:7px}.range-mark{font-size:7px;margin-left:4px}.radar-caption{font-size:6px;bottom:9%}.radar-origin{font-size:9px;gap:4px}.origin-ping{width:8px;height:8px}.radar-bottom{font-size:8px;padding:8px 5px 0}.radar-bottom #feedStatus{max-width:67%;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.mobile-bottom{display:flex;justify-content:center;margin-top:8px}.mobile-bottom .range-switch{gap:7px}.mobile-bottom .range-switch button{min-width:41px;padding:7px 10px;font-size:11px}.mobile-aircraft{display:flex;align-items:center;gap:10px;min-height:72px;border-top:1px solid #235750;background:linear-gradient(90deg,#081d27,#06141d);padding:10px 17px}.mobile-plane{font-size:31px;color:var(--gold)}.mobile-flight{display:flex;flex-direction:column;min-width:0;gap:4px}.mobile-flight strong{font:700 17px var(--mono);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.mobile-flight small{color:#9abec9;font:9px var(--mono)}.mobile-stats{margin-left:auto;text-align:right;display:flex;flex-direction:column;gap:5px}.mobile-stats strong{font:600 12px var(--mono)}.mobile-stats small{font:9px var(--mono);color:#92aebb}}
@media(max-width:360px){h1{font-size:18px}.brand-icon{width:25px;height:25px}.subtitle{font-size:6px}.topbar{height:48px}.radar-frame{width:min(calc(100vw - 10px),calc(100dvh - 164px))}.mobile-aircraft{min-height:62px}.icon-btn{min-width:28px;padding:3px}.mode-badge{font-size:8px}}
@media(prefers-reduced-motion:reduce){.radar-sweep{animation:none}.plane-marker{transition:none}}
/* Keep the radar truly circular in short viewport heights. */
.radar-frame{flex-shrink:0}
.plane-marker{transition:none}
.plane-marker.ready{transition:left 5s linear,top 5s linear}
.panel h2{white-space:normal}
@media(max-width:750px){.radar-frame{width:min(calc(100vw - 14px),calc(100dvh - 205px));height:auto;aspect-ratio:1}}
@media(max-width:360px){.radar-frame{width:min(calc(100vw - 10px),calc(100dvh - 202px))}}
@media(prefers-reduced-motion:reduce){.plane-marker.ready{transition:none}}
/* Aircraft targets must look like radar symbols, not native browser buttons. */
.plane-marker{border:0;background:transparent;padding:0;appearance:none;-webkit-appearance:none;color:inherit}
@media(max-width:750px){.plane-marker:not(.selected) .plane-label{display:none}.plane-marker.selected .plane-label{font-size:9px}}

.map-credit{position:absolute;z-index:12;bottom:8%;right:6%;font:8px var(--mono);color:#c6dedc;background:#03171c9c;border:1px solid #1b4d47;border-radius:4px;padding:3px 5px;white-space:nowrap}.map-credit a{color:#b0e6d0;text-decoration:none}
@media(max-width:750px){.map-credit{font-size:6px;padding:2px 3px;bottom:6.5%;right:9%}}
/* Tiny Pi screens are often 480x320 landscape, rather than portrait. */
@media (max-width:750px) and (max-height:420px) and (orientation:landscape){
 .topbar{height:42px}.brand-icon{width:25px;height:25px}h1{font-size:19px}.subtitle{font-size:6px}.mode-badge{padding:4px 5px;font-size:8px}
 .workarea{width:calc(100% - 145px)}
 .radar-section{width:100%;padding:2px 4px;justify-content:center}
 .radar-toolbar{margin-bottom:2px}.toolbar-meta{font-size:8px}
 .radar-frame{width:min(calc(100vw - 160px),calc(100dvh - 106px));max-width:none}
 .radar-bottom{padding-top:5px;font-size:7px}.mobile-bottom{margin-top:4px}.mobile-bottom .range-switch button{min-width:30px;padding:4px 5px;font-size:9px}
 .mobile-aircraft{position:absolute;right:0;top:42px;bottom:0;width:145px;min-height:0;border-top:0;border-left:1px solid #286355;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:6px;gap:9px}
 .mobile-plane{font-size:38px}.mobile-flight strong{font-size:16px}.mobile-flight small{font-size:9px;white-space:normal}.mobile-stats{margin-left:0;text-align:center}
 .compass{font-size:10px}.range-mark{font-size:6px}.radar-origin{font-size:8px}.radar-caption{display:none}.map-credit{font-size:5px}
}

/* v1.1 silhouette upgrade: jet / helicopter / light / turboprop / glider / unknown. */
.plane-marker .aircraft-symbol{width:24px;height:24px;display:block;transform:rotate(var(--heading));transform-origin:50% 50%;flex-shrink:0}
.plane-marker[data-kind="jet"] .aircraft-symbol{width:27px;height:27px}
.plane-marker[data-kind="turboprop"] .aircraft-symbol{width:23px;height:23px}
.plane-marker[data-kind="light"] .aircraft-symbol{width:18px;height:18px}
.plane-marker[data-kind="helicopter"] .aircraft-symbol{width:23px;height:23px}
.plane-marker[data-kind="glider"] .aircraft-symbol{width:20px;height:20px}
.plane-marker[data-kind="unknown"] .aircraft-symbol{width:16px;height:16px;opacity:.78}
.selected-icon{width:48px;height:48px;display:flex;align-items:center;justify-content:center;flex-shrink:0}
.selected-icon .aircraft-symbol{width:43px;height:43px;display:block;color:var(--gold);filter:drop-shadow(0 0 5px #f6d35273)}
.category-tag{display:inline-block;margin:0 0 0 5px;font:600 9px var(--mono);letter-spacing:.3px;color:var(--green);white-space:nowrap}
.aircraft-row .row-flight{display:flex;align-items:center;gap:5px;min-width:0}
.aircraft-row .row-flight>span{min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.aircraft-row .row-flight .aircraft-symbol{width:15px;height:15px;flex-shrink:0;color:var(--green)}
.aircraft-row.current .row-flight .aircraft-symbol{color:var(--gold)}
.mobile-plane{width:41px;height:41px;flex-shrink:0;display:flex;align-items:center;justify-content:center}
.mobile-plane .aircraft-symbol{width:36px;height:36px;color:var(--gold)}
@media(max-width:750px){
 .plane-marker[data-kind="jet"] .aircraft-symbol{width:23px;height:23px}
 .plane-marker[data-kind="turboprop"] .aircraft-symbol{width:20px;height:20px}
 .plane-marker[data-kind="light"] .aircraft-symbol{width:16px;height:16px}
 .plane-marker[data-kind="helicopter"] .aircraft-symbol{width:21px;height:21px}
 .plane-marker[data-kind="glider"] .aircraft-symbol{width:18px;height:18px}
 .plane-marker[data-kind="unknown"] .aircraft-symbol{width:14px;height:14px}
}
@media(max-width:750px) and (max-height:420px) and (orientation:landscape){
 .mobile-plane{width:42px;height:42px}
 .mobile-plane .aircraft-symbol{width:39px;height:39px}
}

/* ===============================================================
   SWORDFISH RADAR v1.3 · Instrument-style, screen-filling redesign
   No website header, navigation rail, demonstration controls.
   =============================================================== */
html, body { height:100%; }
.app-shell { height:100dvh; min-height:0; max-height:100dvh; overflow:hidden; }
.workarea {
  display:grid; flex:1; min-height:0; height:100%; overflow:hidden;
  grid-template-columns: clamp(188px,17vw,232px) minmax(0,1fr) clamp(248px,23vw,330px);
}
.left-stack, .right-stack { min-height:0; padding:10px 9px 8px; gap:9px; overflow:hidden; }
.panel { padding:11px 11px; border-radius:10px; }
.panel h2 { font-size:16px; margin-bottom:8px; padding-bottom:7px; }
.info-row, .airport-row { padding:6px 0; }
.weather-panel { margin-top:auto; }
.sidebar-footer { min-height:12px; margin-top:0; }
.right-stack .selected-panel { flex-shrink:0; }
.right-stack .table-panel { flex:1 1 0; min-height:0; overflow:hidden; display:flex; flex-direction:column; }
.aircraft-list { flex:1 1 auto; min-height:0; }
.right-footer { flex-shrink:0; font-size:8px; min-height:15px; }
.radar-section {
  padding:7px 10px 5px; min-height:0; min-width:0;
  align-items:stretch; justify-content:initial;
  display:flex; flex-direction:column;
  background:radial-gradient(circle at 50% 48%,#0b2b31 0%,#061a24 68%,#031018 100%);
}
.radar-toolbar {
  width:100%; max-width:none; height:36px; min-height:36px;
  display:flex; justify-content:space-between; align-items:center;
  gap:8px; margin:0; z-index:22;
}
.compact-brand { display:flex; align-items:center; gap:8px; min-width:0; }
.compact-brand .brand-icon { color:#effefa; width:29px; height:29px; flex-shrink:0; filter:drop-shadow(0 0 7px #0ba57c65); }
.compact-brand .brand-icon svg { display:block; width:100%;height:100%; }
.brand-copy { min-width:0; display:flex; flex-direction:column; gap:2px; }
.brand-copy strong { font:800 20px/1 var(--head); white-space:nowrap; letter-spacing:1px; }
.brand-copy em { color:var(--green); font-style:normal; }
.brand-copy small { color:#91bac4; font:500 8px var(--mono);letter-spacing:1px; white-space:nowrap; }
.toolbar-right { display:flex; align-items:center; gap:10px; min-width:0; }
.tracked-count { color:#aac6ce; font:500 10px var(--mono); white-space:nowrap; }
.mode-badge { border-radius:6px; padding:5px 8px; background:#072b24; font-size:10px; }
.mode-badge .status-dot { width:6px; height:6px; }
.settings-cog { display:flex; align-items:center; justify-content:center; width:32px; height:32px; padding:0;
 border:1px solid #34605e; border-radius:8px; background:#091e29; color:#b1e8e0; flex-shrink:0; }
.settings-cog:hover,.settings-cog:focus-visible { color:var(--green); border-color:var(--green); box-shadow:0 0 12px #20dca23d; }
.radar-stage { flex:1 1 0; min-height:0; min-width:0; display:flex; align-items:center; justify-content:center; }
.radar-frame {
  flex:0 0 auto; aspect-ratio:1; height:auto;
  width:min(100%, calc(100dvh - 104px), 920px); max-width:none;
  box-shadow:0 0 0 4px #051a22,0 0 0 5px #204f4d,0 0 45px #09ab7f24,inset 0 0 50px #052a25;
}
.radar-controls { min-height:46px; flex-shrink:0; display:flex; flex-direction:column; justify-content:center; align-items:center; gap:5px; }
.radar-controls .range-switch { gap:5px; }
.radar-controls .range-switch button { min-width:39px; padding:5px 8px; font-size:10px; }
.feed-line { width:100%; min-height:12px; display:flex; justify-content:space-between; align-items:center; gap:8px; color:#82a7b1; font:9px var(--mono); }
.feed-line #feedStatus { white-space:nowrap; overflow:hidden; text-overflow:ellipsis; }
.feed-line #lastUpdate { flex-shrink:0; color:#89b4b3; }
.radar-frame.map-off .map-credit {display:none}
.settings-dialog { max-height:calc(100dvh - 14px); overflow:auto; }
.settings-dialog form { padding:17px; }
.settings-dialog p { margin:9px 0; }
.settings-dialog .settings-explain { margin:12px 0; }
@media (min-width:1600px){
  .workarea { grid-template-columns: clamp(230px,17vw,300px) minmax(0,1fr) clamp(310px,23vw,390px); }
  .left-stack,.right-stack {padding:13px 11px 9px;}
  .panel {padding:13px;}
  .radar-section{padding:8px 13px 6px;}
  .radar-frame{width:min(100%,calc(100dvh - 110px),980px);}
}
@media (max-width:1199px) and (min-width:751px){
 .workarea {grid-template-columns: clamp(175px,18vw,215px) minmax(0,1fr) clamp(225px,23vw,270px);}
 .left-stack,.right-stack{padding:8px 6px;gap:7px;}
 .panel{padding:8px 7px;}
 .panel h2{font-size:14px;margin-bottom:6px;padding-bottom:6px;}
 .info-row,.airport-row{padding:5px 0;}
 .radar-section{padding:5px 7px 4px;}
 .brand-copy strong{font-size:17px;}
 .radar-frame{width:min(100%,calc(100dvh - 96px));}
 .selected-heading .callsign{font-size:25px;}
}
@media (max-height:675px) and (min-width:751px){
 .left-stack,.right-stack{padding-top:5px;padding-bottom:5px;gap:5px;}
 .panel{padding-top:6px;padding-bottom:6px;}
 .panel h2{font-size:13px;margin-bottom:4px;padding-bottom:4px;}
 .info-row,.airport-row,.wx-row{padding-top:4px;padding-bottom:4px;}
 .weather-main{margin-bottom:5px;}
 .wx-raw{max-height:36px;overflow:hidden;padding:4px 0;}
 .radar-toolbar{height:32px;min-height:32px;}
 .radar-controls{min-height:39px;gap:2px;}
 .radar-frame{width:min(100%,calc(100dvh - 83px));}
}
@media (max-width:750px){
 html,body{height:100%;overflow:hidden;}
 .app-shell{height:100dvh;min-height:0;}
 .workarea {display:flex; flex:1 1 auto; min-height:0; width:100%;}
 .left-stack,.right-stack{display:none;}
 .radar-section { width:100%; padding:3px 5px 2px; justify-content:initial; }
 .radar-toolbar{height:33px;min-height:33px;}
 .compact-brand .brand-icon{width:24px;height:24px;}
 .compact-brand{gap:5px;}
 .brand-copy strong{font-size:17px;letter-spacing:.45px;}
 .brand-copy small{font-size:7px;letter-spacing:.4px;}
 .toolbar-right{gap:5px;}
 .mode-badge{padding:4px 6px;font-size:9px;}
 .tracked-count{display:none;}
 .settings-cog{width:29px;height:29px;}
 .settings-cog svg{width:17px;height:17px;}
 .radar-stage{flex:1 1 0;}
 .radar-frame{width:min(calc(100vw - 12px),calc(100dvh - 146px));max-width:none;}
 .radar-controls{min-height:42px;gap:4px;}
 .radar-controls .range-switch button{padding:4px 7px;min-width:34px;}
 .feed-line{font-size:7px;}
 .feed-line #feedStatus{max-width:70%;}
 .mobile-aircraft{display:flex;min-height:61px;max-height:61px;flex-shrink:0;padding:7px 10px;gap:7px;}
 .mobile-flight strong{font-size:14px;}
 .mobile-flight small{font-size:8px;}
 .mobile-stats strong{font-size:11px;}
 .mobile-stats small{font-size:9px;}
 .mobile-plane{width:32px;height:32px;}
 .mobile-plane .aircraft-symbol{width:30px;height:30px;}
 .settings-dialog form{padding:12px;}
 .settings-dialog .dialog-head h2{font-size:21px;}
 .settings-dialog .switch-line{padding:9px 0;}
}
@media (max-width:360px) and (orientation:portrait){
 .brand-copy strong{font-size:15px;}
 .brand-copy small{font-size:6px;}
 .radar-frame{width:min(calc(100vw - 10px),calc(100dvh - 141px));}
 .mode-badge{font-size:8px;}
 .settings-cog{width:27px;height:27px;}
}
/* A tiny GPIO screen often runs landscape at 480 × 320. Keep all key controls visible. */
@media (max-width:750px) and (max-height:420px) and (orientation:landscape){
 .app-shell{position:relative;}
 .workarea{width:calc(100% - 139px);height:100dvh;flex:1 1 auto;}
 .radar-section{padding:2px 5px 2px;}
 .radar-toolbar{height:28px;min-height:28px;}
 .brand-copy strong{font-size:15px;}
 .brand-copy small{font-size:6px;}
 .compact-brand .brand-icon{width:20px;height:20px;}
 .toolbar-right{gap:3px;}
 .mode-badge{font-size:7px;padding:4px 5px;}
 .status-dot{width:5px;height:5px;}
 .settings-cog{height:25px;width:25px;border-radius:5px;}
 .settings-cog svg{width:15px;height:15px;}
 .radar-frame {width:min(calc(100vw - 151px),calc(100dvh - 78px));max-width:none;}
 .radar-controls {min-height:41px;gap:3px;}
 .radar-controls .range-switch {gap:4px;}
 .radar-controls .range-switch button{min-width:28px;font-size:9px;padding:3px 5px;}
 .radar-controls .range-switch>span {font-size:9px;}
 .feed-line{font-size:6px;}
 .feed-line #feedStatus{max-width:63%;}
 .mobile-aircraft {position:absolute;right:0;top:0;bottom:0;width:139px;min-height:0;max-height:none;
  border-top:0;border-left:1px solid #286355;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;gap:9px;padding:8px;}
 .mobile-plane{height:43px;width:43px;}
 .mobile-plane .aircraft-symbol{width:40px;height:40px;}
 .mobile-flight strong{font-size:15px;}
 .mobile-flight small{font-size:8px;white-space:normal;overflow-wrap:anywhere;}
 .mobile-stats{margin-left:0;text-align:center;}
 .mobile-stats strong{font-size:13px;}
 .mobile-stats small{font-size:10px;}
 .compass{font-size:10px;}
 .radar-caption{display:none;}
 .radar-origin{font-size:8px;}
 .map-credit{font-size:5px;}
}
@media (max-width:750px) and (max-height:290px) and (orientation:landscape){
 .radar-frame{width:min(calc(100vw - 150px),calc(100dvh - 76px));}
 .mobile-aircraft{gap:4px;}
}
@media (prefers-reduced-motion:reduce){.radar-sweep{animation:none}.plane-marker.ready{transition:none}}
@media (max-width:280px){
 .brand-copy small{display:none;}
 .brand-copy strong{font-size:13px;}
 .mode-badge #modeText{display:none;}
 .mode-badge{padding:6px;min-width:19px;min-height:19px;justify-content:center;}
 .radar-controls .range-switch button{min-width:28px;padding:4px;}
}

/* v1.4: controls appear only inside the existing cog. The radar layout is unchanged. */
.location-settings{margin:14px 0 10px;padding:12px;background:#09232c;border:1px solid #1d4a4a;border-radius:9px}
.location-title{font:700 12px var(--mono);color:var(--green);letter-spacing:.8px;margin-bottom:12px}
.location-label{display:block;margin:9px 0 5px;font:500 10px var(--mono);color:#c2dde3}
.location-input{display:block;width:100%;min-width:0;min-height:36px;padding:8px 9px;border:1px solid #315360;border-radius:6px;background:#061720;color:#e6f8fa;font:12px var(--mono);color-scheme:dark}
.location-input:focus-visible{outline:2px solid #43d8a1;outline-offset:1px}
.location-coordinates{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.location-help{display:inline-block;margin-top:11px;color:#76eac5;font:10px var(--mono)}
.settings-dialog .location-hint{font:10px/1.5 var(--body);color:#9eb5bb;margin:7px 0}
.location-actions{display:flex;gap:9px;margin:12px 0 6px}
.location-actions button{border-radius:6px;padding:9px 7px;font:700 10px var(--mono);min-width:0;flex:1}
.location-apply{background:#0c4a3a;border:1px solid #42e2a8;color:#b9ffe0}
.location-error{color:#ffd3ca;background:#43221c;padding:7px;font:11px var(--body);border-radius:6px}
@media(max-width:420px){.location-settings{padding:9px;margin:8px 0}.location-actions{gap:5px}.location-actions button{font-size:9px;padding:8px 4px}}

/* Replaceable Swordfish logo: images/logo.png; preserve the existing branding layout. */
.compact-brand .brand-icon img { display:block; width:100%; height:100%; object-fit:contain; }

/* v1.6: compact, one-at-a-time information accordion. Existing radar styling preserved. */
.left-stack{overflow-y:auto;min-height:0;scrollbar-width:thin;scrollbar-color:#276254 transparent}
.left-stack .accordion-panel{flex-shrink:0;padding:0;overflow:hidden}
.accordion-toggle{width:100%;padding:12px 10px;border:0;background:transparent;color:var(--text);font:700 16px var(--head);letter-spacing:.25px;display:flex;align-items:center;justify-content:space-between;gap:6px;text-align:left;cursor:pointer}
.accordion-toggle>span:first-child{min-width:0}
.accordion-toggle small{font:9px var(--mono);color:var(--muted);margin-left:3px}
.accordion-chevron{color:var(--green);font:22px var(--body);transition:transform .2s}
.accordion-panel.expanded{border-color:#3d9475}
.accordion-panel.expanded .accordion-chevron{transform:rotate(180deg)}
.accordion-toggle:hover{background:#123039}
.accordion-body{padding:5px 10px 12px;max-height:min(66vh,680px);overflow-y:auto}
.accordion-body[hidden]{display:none!important}
.accordion-body h2{font-size:14px;margin:5px 0 10px}
.radar-frame{touch-action:none;cursor:grab}
.radar-frame:active{cursor:grabbing}
.home-control{font-size:25px;font-weight:700;line-height:1;display:inline-flex;align-items:center;justify-content:center}
@media(max-width:1199px) and (min-width:751px){.accordion-toggle{padding:10px 6px;font-size:13px}.accordion-body{padding:4px 7px 9px}}
@media(max-width:750px){.home-control{width:27px;height:27px;font-size:21px}}

/* v1.7: group all four accordions at the top; weather opens by default. */
.left-stack .weather-panel{margin-top:0;}
.left-stack .sidebar-footer{margin-top:auto;}
/* Slightly larger Swordfish logo; typography and radar positioning are unchanged. */
.compact-brand .brand-icon{width:38px;height:38px;}
@media(max-width:750px){.compact-brand .brand-icon{width:29px;height:29px;}}
@media(max-width:750px) and (max-height:420px) and (orientation:landscape){.compact-brand .brand-icon{width:24px;height:24px;}}

/* v1.9 – compact, live selected-aircraft vertical speed indicator; no other layout changes. */
.vertical-speed-panel{flex-shrink:0;margin-top:10px;padding:12px 12px 10px;background:linear-gradient(155deg,#0c2730,#081a26);border-color:#275451}
.vertical-speed-panel[hidden]{display:none!important}
.vsi-heading{display:flex;justify-content:space-between;align-items:center;gap:6px;font:700 15px var(--head);letter-spacing:.35px}
.vsi-flight{font:500 9px var(--mono);color:#95b8c5;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:100px}
.vsi-reading{display:flex;align-items:center;gap:12px;padding:8px 1px 10px}
.vsi-arrow{font:700 39px var(--head);color:#48e8ab;width:38px;text-align:center;line-height:1}
.vsi-reading strong{display:block;font:700 18px var(--head);color:#56ecb4;letter-spacing:1px}
.vsi-value{font:700 22px var(--mono);color:#f4fcfa;margin-top:3px;white-space:nowrap}
.vsi-value small{font:500 9px var(--mono);color:#8cabb8}
.vsi-gauge{height:9px;border-radius:6px;background:#18343d;border:1px solid #32616b;position:relative;overflow:visible}
.vsi-gauge-fill{position:absolute;top:0;bottom:0;background:#36dca2;transition:left .6s ease,width .6s ease}
.vsi-gauge-zero{position:absolute;top:-4px;bottom:-4px;left:50%;width:1px;background:#b3cfd7;z-index:2}
.vsi-gauge-needle{position:absolute;top:-5px;height:17px;width:3px;border-radius:3px;background:#f7c94b;box-shadow:0 0 8px #f7c94b80;transform:translateX(-50%);transition:left .6s ease;z-index:3}
.vsi-scale{display:flex;justify-content:space-between;margin-top:7px;font:9px var(--mono);color:#88aebc}
.vsi-foot{font:8px/1.4 var(--mono);color:#789da9;letter-spacing:.25px;margin-top:10px}
.vertical-speed-panel[data-direction="descending"] .vsi-arrow,.vertical-speed-panel[data-direction="descending"] .vsi-reading strong{color:#f4bc71}
.vertical-speed-panel[data-direction="descending"] .vsi-gauge-fill{background:#c9874c}
.vertical-speed-panel[data-direction="level"] .vsi-arrow{color:#9ec8c9}
.vertical-speed-panel[data-direction="unavailable"] .vsi-arrow,.vertical-speed-panel[data-direction="unavailable"] .vsi-reading strong{color:#8ca9b4}
@media(max-width:1199px) and (min-width:751px){.vertical-speed-panel{padding:9px 7px}.vsi-heading{font-size:12px}.vsi-arrow{font-size:32px;width:30px}.vsi-reading{gap:6px}.vsi-reading strong{font-size:15px}.vsi-value{font-size:17px}.vsi-scale{font-size:8px}}

/* v2.0 – selected aircraft identification and live altitude on VSI. */
.vsi-identity{display:flex;align-items:center;justify-content:flex-end;gap:5px;min-width:0;max-width:53%;}
.vsi-aircraft-icon{display:inline-flex;align-items:center;justify-content:center;flex:0 0 22px;color:var(--gold);filter:drop-shadow(0 0 4px #f6d35255);}
.vsi-aircraft-icon .aircraft-symbol{width:21px;height:21px;display:block;transform:none;}
.vsi-flight{max-width:calc(100% - 27px);font-size:10px;color:var(--gold);}
.vsi-altitude{display:flex;align-items:center;justify-content:space-between;gap:6px;border-top:1px solid #254650;padding:9px 1px 10px;}
.vsi-altitude>span{font:600 10px var(--mono);color:#94b7bf;letter-spacing:.3px;}
.vsi-altitude>span small{font-size:8px;color:#6e98a5;}
.vsi-altitude>b{font:700 16px var(--mono);color:#eaf9fa;white-space:nowrap;}
@media(max-width:1199px) and (min-width:751px){.vsi-identity{max-width:55%;gap:3px}.vsi-aircraft-icon{flex-basis:17px}.vsi-aircraft-icon .aircraft-symbol{width:17px;height:17px}.vsi-flight{font-size:8px;max-width:calc(100% - 20px)}.vsi-altitude>span{font-size:9px}.vsi-altitude>span small{font-size:7px}.vsi-altitude>b{font-size:13px}}

/* v2.1 — unified selected-aircraft instrument with slim transponder display. */
.vertical-speed-panel{border-color:#39766b;box-shadow:0 0 0 1px #183b3a,inset 0 1px 0 #38766a40;}
.transponder-strip{display:flex;align-items:center;gap:9px;margin:12px -3px -2px;padding:10px 3px 2px;border-top:1px solid #315961;min-height:56px;}
.transponder-label{display:flex;flex-direction:column;gap:4px;min-width:0;flex:0 1 76px;}
.transponder-label-head{font:700 12px var(--head);letter-spacing:.5px;color:#d3e8e9;}
.transponder-label small{font:9px var(--mono);color:#83a7b3;letter-spacing:1px;}
.squawk-display{flex:0 0 auto;min-width:94px;text-align:center;border:1px solid #3e8f7e;background:linear-gradient(180deg,#020f13,#071c21);background-image:linear-gradient(180deg,#020f13,#071c21),repeating-linear-gradient(90deg,transparent 0 10px,rgba(255,255,255,.035) 10px 11px);border-radius:6px;padding:7px 8px 6px;color:#61f6b6;font:700 23px/1 var(--mono);letter-spacing:2px;text-shadow:0 0 9px #32e5a65e;box-shadow:inset 0 1px 9px #000b,0 0 10px #29af7920;font-variant-numeric:tabular-nums;}
.squawk-meaning{font:8px/1.3 var(--mono);color:#87b1b7;overflow-wrap:anywhere;text-align:right;flex:1;min-width:0;letter-spacing:.6px;}
.vertical-speed-panel[data-squawk-status="emergency"] .squawk-display{color:#ff9b74;border-color:#b26355;text-shadow:0 0 8px #f3775885;box-shadow:inset 0 1px 9px #000b,0 0 12px #f377582a;}
.vertical-speed-panel[data-squawk-status="emergency"] .squawk-meaning{color:#ffae88;}
.vertical-speed-panel[data-squawk-status="vfr"] .squawk-display{color:#79ffbf;border-color:#4da68f;text-shadow:0 0 8px #3dffb078;}
.vertical-speed-panel[data-squawk-status="vfr"] .squawk-meaning{color:#a8d9c7;}
.vertical-speed-panel[data-squawk-status="usvfr"] .squawk-display{color:#85d7ff;border-color:#4e8ca7;text-shadow:0 0 8px #70cfff72;}
.vertical-speed-panel[data-squawk-status="usvfr"] .squawk-meaning{color:#9ec8da;}
.vertical-speed-panel[data-squawk-status="assigned"] .squawk-display{color:#8ce9cf;border-color:#467f73;}
.vertical-speed-panel[data-squawk-status="assigned"] .squawk-meaning{color:#89aeb3;}
@media(max-width:1199px) and (min-width:751px){.transponder-strip{gap:5px}.transponder-label{flex-basis:58px}.transponder-label-head{font-size:10px}.transponder-label small{font-size:8px}.squawk-display{min-width:76px;font-size:17px;padding:7px 4px;letter-spacing:1px}.squawk-meaning{font-size:7px}}

/* v2.3 — discreet UK squawk help button and compact aviation-reference dialogue. */
.transponder-title{display:flex;align-items:center;gap:6px;max-width:100%;}
.squawk-info-btn{flex:0 0 17px;width:17px;height:17px;border:1px solid #4b9889;border-radius:50%;background:#082b30;color:#8ff7d4;font:700 11px/15px var(--mono);padding:0;text-align:center;cursor:pointer;box-shadow:0 0 7px #1dba9233;}
.squawk-info-btn:hover,.squawk-info-btn:focus-visible{color:#06131b;background:#8ff7d4;outline:2px solid #2d8b70;outline-offset:2px;}
.squawk-guide{width:min(410px,calc(100vw - 24px));max-height:min(610px,calc(100dvh - 32px));margin:auto;padding:0;border:1px solid #438374;border-radius:12px;background:#071a23;color:#d6ebea;box-shadow:0 24px 80px #000c,0 0 0 1px #153f40;font-family:var(--mono);overflow:auto;}
.squawk-guide::backdrop{background:rgba(0,8,13,.80);backdrop-filter:blur(3px);}
.squawk-guide-head{position:sticky;top:0;z-index:1;display:flex;align-items:center;justify-content:space-between;gap:12px;padding:16px 18px;background:#0a232b;border-bottom:1px solid #284c52;}
.squawk-guide-overline{font-size:9px;color:#6cb5a8;letter-spacing:1.1px;}
.squawk-guide h2{margin:5px 0 0;font:700 22px var(--head);letter-spacing:1px;color:#e0fdf5;}
.squawk-guide-close{border:1px solid #35666a;border-radius:6px;background:#0a1c23;color:#c9edeb;width:31px;height:31px;cursor:pointer;}
.squawk-guide-intro{margin:12px 18px;color:#9fb9c0;font-size:11px;line-height:1.5;}
.squawk-guide-codes{margin:0 18px;border:1px solid #27474e;border-radius:8px;overflow:hidden;}
.squawk-guide-codes>div{display:flex;gap:13px;align-items:center;padding:9px 10px;background:#091e27;border-bottom:1px solid #243e47;}
.squawk-guide-codes>div:last-child{border-bottom:0;}
.squawk-guide-codes code{flex:0 0 66px;box-sizing:border-box;text-align:center;border:1px solid #3b796f;border-radius:5px;padding:7px 3px;background:#041317;color:#78f5bb;text-shadow:0 0 9px #45e8a782;font:700 18px/1 var(--mono);letter-spacing:1px;}
.squawk-guide-codes>div:nth-child(3) code,.squawk-guide-codes>div:nth-child(4) code,.squawk-guide-codes>div:nth-child(5) code{color:#ffab82;border-color:#8e504a;text-shadow:0 0 9px #e56d6477;}
.squawk-guide-codes strong{display:block;font-size:11px;color:#e6f4f2;margin-bottom:3px;}
.squawk-guide-codes small{display:block;font-size:10px;line-height:1.4;color:#88a9b0;}
.squawk-guide-note{margin:12px 18px 0;padding:10px 12px;background:#0d2a2f;border-left:2px solid #4eb79d;border-radius:3px;}
.squawk-guide-note strong{color:#99eed4;font-size:10px;letter-spacing:.6px;}
.squawk-guide-note p{font-size:10px;line-height:1.5;color:#adc7c8;margin:5px 0 0;}
.squawk-guide-source{margin:12px 18px 17px;font-size:9px;line-height:1.6;color:#88abb1;}
.squawk-guide-source a{color:#8ceaca;}
@media(max-width:1199px) and (min-width:751px){.transponder-title{gap:3px}.squawk-info-btn{flex-basis:14px;width:14px;height:14px;font-size:9px;line-height:12px}}

/* v2.4 – tidy instrument readout and plain aviation reference */
.transponder-strip{display:block;margin:11px -2px -2px;padding:9px 2px 1px;min-height:0;}
.transponder-topline{display:flex;justify-content:space-between;align-items:center;gap:8px;margin-bottom:7px;color:#bedbd9;font:700 11px/1.1 var(--head);letter-spacing:.5px;}
.transponder-topline>span{display:flex;align-items:center;gap:8px;white-space:nowrap;min-width:0;}
.transponder-topline small{font:9px var(--mono);letter-spacing:1.1px;color:#789fa9;}
.squawk-info-btn{flex:none;display:inline-flex;align-items:center;justify-content:center;width:16px;height:16px;line-height:1;font-size:10px;vertical-align:middle;}
.transponder-bottomline{display:flex;align-items:center;justify-content:space-between;gap:10px;min-width:0;}
.squawk-display{flex:0 0 auto;min-width:94px;box-sizing:border-box;}
.squawk-meaning{flex:1;min-width:0;max-width:none;text-align:right;font-size:9px;line-height:1.35;overflow-wrap:normal;word-break:normal;}
.squawk-guide{width:min(360px,calc(100vw - 24px));border-radius:8px;}
.squawk-guide-head{padding:14px 16px;}
.squawk-guide h2{font:700 21px var(--head);letter-spacing:.3px;text-transform:none;margin:4px 0 0;}
.squawk-guide-overline{font-size:9px;letter-spacing:1px;}
.squawk-guide-codes{margin:14px 16px 0;border:0;border-top:1px solid #2a4b4d;border-radius:0;}
.squawk-guide-codes>div{display:grid;grid-template-columns:73px 1fr;gap:13px;align-items:center;background:transparent;padding:9px 2px;border-bottom:1px solid #213e43;}
.squawk-guide-codes code{font-size:19px;flex:auto;padding:8px 4px;border-radius:4px;}
.squawk-guide-codes span{font:500 12px/1.3 var(--body);color:#d6e9e7;}
.squawk-guide-codes>div.squawk-alert code{color:#ffab82;border-color:#8e504a;text-shadow:0 0 9px #e56d6477;}
.squawk-guide-note{margin:13px 16px 0;background:#0a262a;border-radius:4px;padding:10px 11px;}
.squawk-guide-source{margin:13px 16px 16px;}
@media(max-width:1199px) and (min-width:751px){
  .transponder-strip{margin-top:8px;padding-top:7px;}
  .transponder-topline{font-size:10px;gap:4px;}
  .transponder-topline>span{gap:5px;}
  .transponder-topline small{font-size:8px;}
  .transponder-bottomline{gap:6px;}
  .squawk-display{min-width:77px;font-size:18px;}
  .squawk-meaning{font-size:8px;}
  .squawk-info-btn{width:15px;height:15px;font-size:9px;flex-basis:15px;line-height:1;}
}