:root{
    --bg:#06111B;
    --panel:#0B1B29;
    --panel-2:#0E2233;
    --line:#1B3A50;
    --phos:#41F0AE;       /* radar phosphor green */
    --phos-dim:#1E7A5C;
    --cyan:#53C8F0;
    --amber:#FFB454;      /* selected / alert */
    --text:#C9E4EF;
    --text-dim:#6E92A6;
    --danger:#FF6B6B;
  }
  *{box-sizing:border-box;margin:0;padding:0}
  html,body{height:100%}
  body{
    background:var(--bg);
    color:var(--text);
    font-family:'IBM Plex Mono',monospace;
    overflow:hidden;
  }
  #map{position:absolute;inset:0;background:var(--bg)}
  .leaflet-container{background:var(--bg)}
  .leaflet-tile-pane{filter:brightness(.85) saturate(.8)}

  /* ---------- top bar ---------- */
  header{
    position:absolute;top:0;left:0;right:0;z-index:1000;
    display:flex;align-items:center;gap:14px;
    padding:10px 16px;
    background:linear-gradient(180deg,rgba(6,17,27,.92),rgba(6,17,27,.75) 70%,transparent);
    pointer-events:none;
  }
  header > *{pointer-events:auto}
  .brand{display:flex;align-items:baseline;gap:10px;user-select:none}
  .brand h1{
    font-family:'Rajdhani',sans-serif;font-weight:700;font-size:22px;
    letter-spacing:.28em;color:var(--phos);
    text-shadow:0 0 12px rgba(65,240,174,.45);
  }
  .brand span{font-size:10px;color:var(--text-dim);letter-spacing:.12em}
  .spacer{flex:1}
  .stat{
    font-size:11px;color:var(--text-dim);letter-spacing:.08em;white-space:nowrap;
  }
  .stat b{color:var(--phos);font-weight:600}
  .stat.err b{color:var(--danger)}

  /* ---------- control cluster ---------- */
  .controls{
    position:absolute;left:16px;top:62px;z-index:1000;
    display:flex;flex-direction:column;gap:8px;width:220px;
  }
  .controls-titlebar{
    position:relative;background:rgba(11,27,41,.88);border:1px solid var(--line);
    backdrop-filter:blur(6px);border-radius:6px;padding:10px 46px 9px 12px;
    min-height:42px;display:flex;align-items:center;
  }
  .controls-titlebar h2{
    font-family:'Rajdhani',sans-serif;color:var(--phos);font-size:18px;
    letter-spacing:.14em;margin:0;text-shadow:0 0 12px rgba(65,240,174,.35);
  }
  .ctl{
    background:rgba(11,27,41,.88);
    border:1px solid var(--line);
    backdrop-filter:blur(6px);
    border-radius:6px;padding:9px 12px;
  }
  .ctl label{
    display:block;font-size:9px;letter-spacing:.18em;
    color:var(--text-dim);margin-bottom:7px;text-transform:uppercase;
  }
  .range-btns{display:flex;gap:4px}
  .range-btns button{
    flex:1;background:transparent;border:1px solid var(--line);color:var(--text-dim);
    font-family:inherit;font-size:11px;padding:5px 0;border-radius:4px;cursor:pointer;
    transition:all .15s;
  }
  .range-btns button:hover{border-color:var(--phos-dim);color:var(--text)}
  .range-btns button.on{
    background:rgba(65,240,174,.12);border-color:var(--phos);color:var(--phos);
  }
  .btn{
    width:100%;background:transparent;border:1px solid var(--line);color:var(--text);
    font-family:inherit;font-size:11px;padding:7px 0;border-radius:4px;cursor:pointer;
    letter-spacing:.06em;transition:all .15s;
  }
  .btn:hover{border-color:var(--phos);color:var(--phos)}
  .btn.armed{border-color:var(--amber);color:var(--amber)}
  .btn + .btn{margin-top:6px}
  .toggle-row{
    display:flex;align-items:center;justify-content:space-between;gap:10px;
    min-height:22px;font-size:10px;color:var(--text);cursor:pointer;user-select:none;
    letter-spacing:.12em;line-height:1.15;padding:1px 0;
  }
  .toggle-row + .toggle-row{margin-top:4px}
  .toggle-row span{flex:1;min-width:0;white-space:normal}
  .toggle-row input[type="checkbox"]{
    appearance:none;-webkit-appearance:none;flex:none;cursor:pointer;
    width:28px;height:14px;border-radius:999px;position:relative;
    border:1px solid var(--line);background:rgba(4,13,22,.85);
    box-shadow:inset 0 0 5px rgba(0,0,0,.25);
    transition:background .16s,border-color .16s,box-shadow .16s;
  }
  .toggle-row input[type="checkbox"]::before{
    content:"";position:absolute;left:2px;top:2px;width:8px;height:8px;border-radius:50%;
    background:var(--text-dim);box-shadow:0 0 3px rgba(0,0,0,.45);
    transition:transform .16s,background .16s,box-shadow .16s;
  }
  .toggle-row input[type="checkbox"]:checked{
    border-color:var(--phos);background:rgba(65,240,174,.18);
    box-shadow:0 0 6px rgba(65,240,174,.16),inset 0 0 6px rgba(65,240,174,.08);
  }
  .toggle-row input[type="checkbox"]:checked::before{
    transform:translateX(14px);background:var(--phos);box-shadow:0 0 6px rgba(65,240,174,.75);
  }
  .toggle-row input[type="checkbox"]:focus-visible{outline:1px solid var(--amber);outline-offset:2px}

  /* ---------- aircraft panel ---------- */
  .panel{
    position:absolute;right:16px;top:62px;z-index:1000;width:280px;
    background:rgba(11,27,41,.92);
    border:1px solid var(--line);border-radius:6px;
    backdrop-filter:blur(6px);
    transform:translateX(320px);
    visibility:hidden;pointer-events:none;
    transition:transform .25s ease, visibility 0s linear .25s;
    overflow:hidden;
  }
  .panel.open{transform:translateX(0);visibility:visible;pointer-events:auto;transition:transform .25s ease}
  .panel-head{
    display:flex;align-items:center;justify-content:space-between;
    padding:12px 14px;border-bottom:1px solid var(--line);
    background:linear-gradient(90deg,rgba(255,180,84,.08),transparent);
  }
  .panel-head .cs{
    font-family:'Rajdhani',sans-serif;font-weight:700;font-size:24px;
    letter-spacing:.1em;color:var(--amber);
  }
  .panel-head button{
    background:none;border:none;color:var(--text-dim);font-size:16px;cursor:pointer;
    font-family:inherit;
  }
  .panel-head button:hover{color:var(--text)}
  .route{
    padding:12px 14px;border-bottom:1px solid var(--line);min-height:64px;
  }
  .route .leg{display:flex;align-items:center;gap:10px}
  .route .apt{flex:1}
  .route .iata{
    font-family:'Rajdhani',sans-serif;font-weight:700;font-size:20px;color:var(--cyan);
    letter-spacing:.06em;
  }
  .route .city{font-size:10px;color:var(--text-dim);line-height:1.4}
  .route .arrow{color:var(--phos);font-size:14px}
  .route .pending{font-size:11px;color:var(--text-dim)}
  .airline-identity{
    display:flex;align-items:center;gap:9px;margin-top:9px;padding:8px 9px;
    border:1px solid var(--line);border-radius:5px;background:rgba(5,18,29,.38);
  }
  .airline-mark{
    width:54px;height:36px;flex:none;border-radius:5px;position:relative;overflow:hidden;
    display:grid;place-items:center;
    font-family:'Rajdhani',sans-serif;font-size:12px;font-weight:700;letter-spacing:.08em;
    color:#071923;background:linear-gradient(135deg,var(--cyan),var(--phos));
    box-shadow:0 0 10px rgba(68,199,255,.2);
  }
  .airline-mark img{
    position:absolute;inset:0;width:100%;height:100%;object-fit:contain;
    padding:3px;background:#fff;box-sizing:border-box;
  }
  .airline-mark img[hidden]{display:none}
  .airline-mark.has-logo .airline-mark-fallback{visibility:hidden}
  .airline-copy{min-width:0}
  .airline-name{font-size:10px;color:var(--text);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
  .airline-code{font-size:8px;color:var(--text-dim);letter-spacing:.12em;margin-top:2px}
  .airline-logo-credit{display:block;margin-top:3px;font-size:7px;color:var(--text-dim)}
  .grid{display:grid;grid-template-columns:1fr 1fr;gap:1px;background:var(--line)}
  .cell{background:var(--panel);padding:10px 14px}
  .cell .k{font-size:9px;letter-spacing:.15em;color:var(--text-dim);text-transform:uppercase}
  .cell .v{font-size:15px;color:var(--text);margin-top:3px}
  .cell .v small{font-size:10px;color:var(--text-dim)}
  .cell .v.climb{color:var(--phos)}
  .cell .v.desc{color:var(--amber)}
  .photo{border-bottom:1px solid var(--line);background:#000;min-height:0}
  .photo img{display:block;width:100%;max-height:170px;object-fit:cover;background:#000}
  .photo .credit{font-size:9px;color:var(--text-dim);padding:4px 14px;background:var(--panel)}
  .sect{padding:12px 14px;border-bottom:1px solid var(--line)}
  .sect .k{font-size:9px;letter-spacing:.15em;color:var(--text-dim);text-transform:uppercase;margin-bottom:7px}
  .metar-grid{display:grid;grid-template-columns:1fr 1fr;gap:6px 12px;font-size:12px}
  .metar-grid span{color:var(--text-dim);font-size:10px}
  .airport-weather-current{display:flex;align-items:center;gap:10px;margin-bottom:10px}
  .airport-weather-icon{
    width:38px;height:38px;display:grid;place-items:center;flex:none;
    border:1px solid var(--line);border-radius:50%;font-size:20px;background:rgba(68,199,255,.08)
  }
  .airport-weather-temp{font-family:'Rajdhani',sans-serif;font-size:24px;font-weight:700;color:var(--phos);line-height:1}
  .airport-weather-summary{min-width:0;font-size:10px;color:var(--text);margin-top:3px}
  .airport-weather-summary b{display:block;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
  .airport-weather-summary span{display:block;margin-top:2px;font-size:8px;line-height:1.4;color:var(--text-dim)}
  .airport-weather-local{margin-left:auto;text-align:right;font-size:10px;color:var(--cyan);white-space:nowrap}
  .airport-weather-local span,.airport-weather-local b{display:block}
  .airport-weather-local small{display:block;font-size:8px;color:var(--text-dim);letter-spacing:.08em;margin-top:2px}
  .airport-weather-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:5px}
  .airport-weather-hour{padding:7px 4px;border:1px solid var(--line);border-radius:4px;text-align:center;background:rgba(5,18,29,.28)}
  .airport-weather-hour > span{display:block;color:var(--text-dim);font-size:8px;margin-bottom:4px}
  .airport-weather-hour b{display:block;color:var(--text);font-size:10px;margin-top:3px}
  .airport-weather-hour small{display:block;color:var(--text-dim);font-size:7px;line-height:1.25;margin-top:3px}
  .airport-weather-meta{display:flex;gap:12px;flex-wrap:wrap;margin-top:8px;font-size:9px;color:var(--text-dim)}
  .airport-weather-credit{margin-top:8px;font-size:8px;color:var(--text-dim)}
  .airport-weather-credit a{color:var(--cyan)}
  .metar-raw{font-size:9px;color:var(--text-dim);margin-top:8px;word-break:break-all;line-height:1.5}
  .wiki{font-size:11px;line-height:1.6;color:var(--text)}
  .wiki a{color:var(--cyan)}
  .tfc-row{
    display:flex;justify-content:space-between;gap:8px;
    padding:6px 0;border-bottom:1px solid rgba(27,58,80,.5);
    font-size:11px;cursor:pointer;
  }
  .tfc-row:last-child{border-bottom:none}
  .tfc-row:hover .cs2{color:var(--amber)}
  .tfc-row .cs2{color:var(--phos);font-weight:600}
  .tfc-row .meta{color:var(--text-dim);font-size:10px}
  .panel-body{max-height:min(62vh,560px);overflow-y:auto}
  .pending{font-size:11px;color:var(--text-dim)}

  /* ---------- aircraft markers ---------- */
  .ac-icon{filter:drop-shadow(0 0 4px currentColor)}
  .ac-icon.sel{filter:drop-shadow(0 0 6px rgba(255,180,84,.8))}
  .ac-icon.kind-militaryTransport,.ac-icon.kind-fighter{filter:drop-shadow(0 0 5px currentColor)}
  .ac-icon.emergency{animation:emergencyPulse 1s ease-in-out infinite alternate}
  @keyframes emergencyPulse{
    from{filter:drop-shadow(0 0 3px #ff6b6b)}
    to{filter:drop-shadow(0 0 11px #ff6b6b) drop-shadow(0 0 4px #fff)}
  }
  .ac-label{
    position:absolute;left:18px;top:-4px;
    font-family:'IBM Plex Mono',monospace;font-size:9px;font-weight:500;
    color:var(--phos);white-space:nowrap;letter-spacing:.04em;
    text-shadow:0 0 4px rgba(6,17,27,.95),0 0 8px rgba(6,17,27,.95);
    pointer-events:none;
  }
  .ac-icon.sel .ac-label{color:var(--amber)}

  /* ---------- radar sweep ---------- */
  #sweep{
    position:absolute;z-index:640;border-radius:50%;
    pointer-events:none;
    background:conic-gradient(
      from 0deg,
      transparent 0deg 282deg,
      rgba(65,240,174,.015) 300deg,
      rgba(65,240,174,.07) 328deg,
      rgba(65,240,174,.24) 359.5deg,
      transparent 360deg
    );
    /* rotation is driven from app.js so the arm and the contact repaints
       share one clock — see sweepFrame() */
  }
  #sweep::after{
    content:"";
    position:absolute;
    left:50%;top:0;
    width:1.5px;height:50%;
    transform:translateX(-50%);
    background:linear-gradient(180deg,rgba(88,255,192,.65),rgba(65,240,174,.88));
    box-shadow:0 0 5px rgba(65,240,174,.65),0 0 12px rgba(65,240,174,.22);
  }
  @media (prefers-reduced-motion:reduce){
    #sweep{animation:none;display:none}
  }
  .ring-label{
    font-size:9px;color:var(--phos-dim);letter-spacing:.1em;white-space:nowrap;
  }
  #centerDot{
    width:8px;height:8px;border-radius:50%;
    background:var(--phos);box-shadow:0 0 8px var(--phos);
  }

  .apt-icon{position:relative}
  .apt-icon .dia{
    width:9px;height:9px;background:var(--cyan);transform:rotate(45deg);
    box-shadow:0 0 6px rgba(83,200,240,.6);border:1px solid rgba(6,17,27,.8);
  }
  .apt-icon .tag{
    position:absolute;left:13px;top:-3px;font-size:9px;letter-spacing:.08em;
    color:var(--cyan);text-shadow:0 0 4px rgba(6,17,27,.95);white-space:nowrap;
  }

  .mil-base-icon{position:relative}
  .mil-base-icon .dia{
    width:11px;height:11px;background:var(--amber);transform:rotate(45deg);
    box-shadow:0 0 8px rgba(255,180,84,.75);border:1px solid rgba(6,17,27,.85);
  }
  .mil-base-icon .tag{
    position:absolute;left:15px;top:-4px;font-size:9px;letter-spacing:.08em;
    color:var(--amber);text-shadow:0 0 4px rgba(6,17,27,.95);white-space:nowrap;
  }
  .mil-pop{font-family:'IBM Plex Mono',monospace;font-size:11px;line-height:1.6}
  .mil-pop b{font-family:'Rajdhani',sans-serif;font-size:16px;letter-spacing:.06em;color:var(--amber)}

  .apt-pop{font-family:'IBM Plex Mono',monospace;font-size:11px;line-height:1.6}
  .apt-pop b{font-family:'Rajdhani',sans-serif;font-size:16px;letter-spacing:.06em;color:var(--cyan)}
  .leaflet-popup-content-wrapper{background:var(--panel)!important;color:var(--text)!important;border:1px solid var(--line);border-radius:6px}
  .leaflet-popup-tip{background:var(--panel)!important}

  /* ---------- toast ---------- */
  #toast{
    position:absolute;bottom:24px;left:50%;transform:translateX(-50%);z-index:1100;
    background:var(--panel-2);border:1px solid var(--line);border-radius:6px;
    padding:9px 16px;font-size:11px;letter-spacing:.05em;color:var(--text);
    opacity:0;transition:opacity .3s;pointer-events:none;
  }
  #toast.show{opacity:1}

  .leaflet-control-zoom{border:1px solid var(--line)!important;margin-top:120px!important}
  .leaflet-control-zoom a{
    background:var(--panel)!important;color:var(--text)!important;
    border-color:var(--line)!important;
  }
  .leaflet-control-attribution{
    background:rgba(6,17,27,.7)!important;color:var(--text-dim)!important;font-size:9px!important;
  }
  .leaflet-control-attribution a{color:var(--cyan)!important}


  /* ---------- improvements: clustering, replay, settings ---------- */
  .cluster-dot{
    width:34px;height:34px;border-radius:50%;display:flex;align-items:center;justify-content:center;
    background:rgba(65,240,174,.16);border:1px solid var(--phos);color:var(--phos);
    font-family:'IBM Plex Mono',monospace;font-size:11px;font-weight:600;
    box-shadow:0 0 16px rgba(65,240,174,.35), inset 0 0 14px rgba(65,240,174,.12);
  }
  .mini-btn{
    background:transparent;border:1px solid var(--line);color:var(--text);font-family:inherit;
    font-size:10px;padding:5px 7px;border-radius:4px;cursor:pointer;letter-spacing:.05em;
  }
  .mini-btn:hover{border-color:var(--phos);color:var(--phos)}
  .mini-btn.on{border-color:var(--amber);color:var(--amber)}
  .settings{
    position:absolute;left:16px;top:62px;z-index:1000;width:260px;
    background:rgba(11,27,41,.94);border:1px solid var(--line);border-radius:6px;
    backdrop-filter:blur(6px);padding:12px;display:none;
  }
  .settings.open{display:block}
  .settings h2{font-family:'Rajdhani',sans-serif;color:var(--phos);font-size:18px;letter-spacing:.14em;margin-bottom:8px}
  .settings label{display:block;font-size:9px;letter-spacing:.15em;color:var(--text-dim);text-transform:uppercase;margin:10px 0 5px}
  .settings input,.settings select{
    width:100%;background:transparent;border:1px solid var(--line);border-radius:4px;color:var(--text);
    font-family:inherit;font-size:11px;padding:7px 8px;outline:none;
    appearance:none;-webkit-appearance:none;-moz-appearance:none;
  }
  .settings select{
    background-image:url("data:image/svg+xml,%3Csvg%20xmlns='http://www.w3.org/2000/svg'%20width='10'%20height='6'%20viewBox='0%200%2010%206'%3E%3Cpath%20fill='%236E92A6'%20d='M0%200l5%206%205-6z'/%3E%3C/svg%3E");
    background-repeat:no-repeat;background-position:right 9px center;background-size:10px 6px;padding-right:26px;
  }
  .settings option{background:#0B1B29;color:#C9E4EF}
  .settings .hint{font-size:9px;color:var(--text-dim);line-height:1.45;margin-top:5px}
  .btn-secondary{margin-top:8px;color:var(--cyan)}
  .sources-panel{
    display:none;position:absolute;z-index:1450;top:58px;right:16px;width:min(430px,calc(100vw - 32px));
    max-height:calc(100dvh - 76px);overflow:auto;padding:18px;background:rgba(6,17,27,.97);
    border:1px solid var(--line);border-radius:8px;box-shadow:0 18px 55px rgba(0,0,0,.48)
  }
  .sources-panel.open{display:block}
  .sources-panel h2{font-family:'Rajdhani',sans-serif;color:var(--phos);font-size:18px;letter-spacing:.14em;margin:0 40px 8px 0}
  .sources-intro,.sources-note{font-size:10px;line-height:1.55;color:var(--text-dim)}
  .source-list{margin:12px 0;border-top:1px solid var(--line)}
  .source-item{display:grid;grid-template-columns:120px 1fr;gap:10px;padding:10px 0;border-bottom:1px solid rgba(27,58,80,.72);font-size:10px;line-height:1.45}
  .source-item strong{color:var(--text);letter-spacing:.08em;text-transform:uppercase}
  .source-item span{color:var(--text-dim)}
  .source-item a{color:var(--cyan)}
  .sources-stamp{margin-top:10px;opacity:.62;letter-spacing:.06em}
  .controls .hint{font-size:9px;color:var(--text-dim);line-height:1.45;margin:2px 0 8px}
  .replaybar{padding:10px 14px;border-bottom:1px solid var(--line);display:flex;align-items:center;gap:8px;flex-wrap:wrap}
  .replaybar .status{font-size:10px;color:var(--text-dim);flex:1;min-width:92px}
  #btnControls{display:none}


  /* ---------- premium-style layers and tools ---------- */
  .photo{position:relative;min-height:34px}
  .photo .photo-actions{display:flex;gap:6px;padding:6px 10px;background:var(--panel);border-top:1px solid rgba(27,58,80,.55)}
  .photo .photo-actions a{flex:1;text-align:center;text-decoration:none}
  .photo .placeholder{display:flex;align-items:center;justify-content:center;gap:10px;min-height:92px;background:radial-gradient(circle at 50% 30%,rgba(65,240,174,.10),transparent 58%),#03080c;color:var(--text-dim);font-size:10px}
  .photo .placeholder svg{width:86px;height:56px;fill:var(--phos);filter:drop-shadow(0 0 8px rgba(65,240,174,.35));opacity:.85}
  .tools-row{display:flex;gap:6px;margin-top:7px}
  .tools-row .mini-btn{flex:1}
  .watch-dot{display:inline-block;width:7px;height:7px;border-radius:50%;background:var(--amber);box-shadow:0 0 8px rgba(255,180,84,.75);margin-right:5px}
  .alert-banner{display:none;position:absolute;left:50%;top:44px;transform:translateX(-50%);z-index:1150;cursor:pointer;max-width:min(520px,calc(100vw - 32px));background:rgba(80,15,15,.94);border:1px solid var(--danger);color:#FFD9D9;border-radius:6px;padding:9px 14px;font-size:11px;letter-spacing:.05em;box-shadow:0 0 18px rgba(255,107,107,.25)}
  .alert-banner.show{display:block}
  .flight-list{position:absolute;left:16px;top:auto;bottom:16px;z-index:900;width:430px;max-height:360px;overflow:auto;background:rgba(11,27,41,.90);border:1px solid var(--line);border-radius:6px;backdrop-filter:blur(6px);display:none}
  .flight-list.open{display:block}
  .flight-list h3{font-family:'Rajdhani',sans-serif;font-size:15px;letter-spacing:.12em;color:var(--phos);padding:7px 12px;border-bottom:1px solid var(--line)}
  .flight-row{display:grid;grid-template-columns:minmax(96px,1.1fr) 84px 76px 82px;align-items:center;gap:8px;padding:5px 10px;border-bottom:1px solid rgba(27,58,80,.5);font-size:10px;cursor:pointer;min-height:27px}
  .flight-row:hover{background:rgba(65,240,174,.08)}
  .flight-row b{color:var(--phos);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
  .flight-row span{color:var(--text-dim);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
  .flight-type{color:var(--cyan)!important;font-weight:600;text-align:left}
  .flight-alt{text-align:right}
  .flight-dist{text-align:right;color:var(--amber)!important}
  .flight-status{text-align:right;font-weight:700;color:var(--text-dim)!important;display:flex;align-items:center;justify-content:flex-end;gap:4px;overflow:visible!important;white-space:nowrap!important}
  .flight-status.landed{color:var(--phos)!important}
  .landed-row{opacity:.92;background:rgba(65,240,174,.06)}
  .landed-remove{background:transparent;border:1px solid rgba(255,180,84,.55);color:var(--amber);font-family:inherit;font-size:10px;line-height:1;padding:2px 5px;border-radius:4px;cursor:pointer;margin-left:6px;flex:none}
  .landed-remove:hover{border-color:var(--danger);color:var(--danger)}
  .flight-status .landed-remove{vertical-align:middle}
  .watch-row.status-landed{border-left:2px solid var(--phos)}
  .watch-settings{border:1px solid rgba(27,58,80,.65);border-radius:6px;padding:8px 9px;margin-top:6px;background:rgba(65,240,174,.04)}
  .watch-settings .toggle-row{font-size:10px;margin-top:0}
  .measure-line{filter:drop-shadow(0 0 5px rgba(255,180,84,.6))}

  .weather-timeline{
    position:absolute;left:50%;bottom:18px;transform:translateX(-50%);z-index:910;
    width:min(640px,calc(100vw - 390px));min-width:360px;
    background:rgba(11,27,41,.92);border:1px solid var(--line);border-radius:8px;
    backdrop-filter:blur(6px);box-shadow:0 8px 24px rgba(0,0,0,.24);
    padding:9px 12px;display:none;color:var(--text);
  }
  .weather-timeline.open{display:block}
  .weather-top{display:flex;align-items:center;gap:8px;margin-bottom:7px}
  .weather-badge{font-size:9px;letter-spacing:.14em;color:var(--phos);font-weight:700;text-transform:uppercase;min-width:78px}
  .weather-note{font-size:9px;color:var(--text-dim);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;flex:1}
  .weather-age{font-size:9px;color:var(--text-dim);white-space:nowrap}
  .weather-age.fresh{color:var(--phos)} .weather-age.stale{color:var(--amber)} .weather-age.old{color:var(--danger)}
  .weather-mid{display:flex;gap:8px;align-items:center}
  .weather-time{font-family:'Rajdhani',sans-serif;font-weight:700;font-size:16px;color:var(--phos);min-width:66px;text-align:center;letter-spacing:.05em}
  .weather-kind{font-size:9px;color:var(--text-dim);letter-spacing:.12em;text-transform:uppercase;min-width:62px;text-align:center}
  .weather-range-wrap{position:relative;flex:1;padding-top:14px}
  .weather-range-labels{position:absolute;top:0;left:0;right:0;display:flex;justify-content:space-between;font-size:8px;color:var(--text-dim);letter-spacing:.12em;text-transform:uppercase;pointer-events:none}
  .weather-range{width:100%;appearance:none;height:5px;border-radius:999px;background:linear-gradient(90deg,var(--cyan),var(--phos),var(--amber));outline:none;cursor:pointer}
  .weather-range::-webkit-slider-thumb{appearance:none;width:15px;height:15px;border-radius:50%;background:var(--amber);border:2px solid var(--panel);box-shadow:0 0 8px rgba(255,180,84,.8)}
  .weather-range::-moz-range-thumb{width:15px;height:15px;border-radius:50%;background:var(--amber);border:2px solid var(--panel);box-shadow:0 0 8px rgba(255,180,84,.8)}
  .weather-timeline .mini-btn{width:34px;flex:none;padding:5px 0}
  .weather-bottom{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-top:7px}
  .weather-ticks{display:flex;gap:8px;overflow:hidden;color:var(--text-dim);font-size:8px;white-space:nowrap;flex:1}
  .weather-ticks span.live{color:var(--phos);font-weight:700}
  .weather-legend{display:flex;gap:6px;align-items:center;font-size:8px;color:var(--text-dim);white-space:nowrap}
  .legend-dot{display:inline-block;width:10px;height:6px;border-radius:3px;margin-right:2px}
  .legend-light{background:#29a8ff}.legend-mod{background:#ffd24a}.legend-heavy{background:#d23a3a}
  .weather-speed{background:transparent;border:1px solid var(--line);border-radius:4px;color:var(--text);font-family:inherit;font-size:9px;padding:4px 5px;outline:none}
  .weather-speed option{background:#0B1B29;color:#C9E4EF}
  @media (max-width:900px){.weather-timeline{left:16px;right:16px;bottom:12px;transform:none;width:auto;min-width:0}.flight-list.open + .weather-timeline{bottom:358px}.weather-bottom{align-items:flex-start;flex-direction:column}.weather-note{display:none}}

  .flight-section{padding:5px 10px 3px;border-bottom:1px solid rgba(27,58,80,.35);font-size:8.5px;letter-spacing:.16em;color:var(--text-dim);text-transform:uppercase;background:rgba(65,240,174,.04)}
  .flight-row.watch-row{background:rgba(255,180,84,.07);border-left:2px solid var(--amber);padding-left:8px}
  .flight-row.watch-row:hover{background:rgba(255,180,84,.14)}

  .flight-section{padding:5px 10px 3px;border-bottom:1px solid rgba(27,58,80,.55);font-size:8.5px;color:var(--text-dim);letter-spacing:.14em;text-transform:uppercase}
  .flight-sort{display:grid;grid-template-columns:minmax(96px,1.1fr) 84px 76px 82px;gap:8px;padding:4px 10px;border-bottom:1px solid rgba(27,58,80,.65);font-size:8px;color:var(--text-dim);letter-spacing:.12em;text-transform:uppercase}
  .flight-sort button{background:transparent;border:0;color:inherit;font:inherit;text-align:left;cursor:pointer;padding:0}
  .flight-sort button:hover,.flight-sort button.on{color:var(--amber)}
  .flight-type.jet{color:var(--cyan)}
  .flight-type.heavy{color:#8cc7ff}
  .flight-type.prop{color:var(--phos)}
  .flight-type.heli{color:var(--amber)}
  .flight-dist{color:var(--amber)!important;text-align:right}

  .type-badge{display:inline-block;border:1px solid rgba(83,200,240,.45);border-radius:3px;padding:1px 3px;margin-right:4px;font-size:8px;line-height:1.1;color:var(--cyan);letter-spacing:.06em}
  .type-badge.mil{color:var(--amber);border-color:rgba(255,180,84,.55);background:rgba(255,180,84,.06)}
  .type-badge.hist{color:var(--phos);border-color:rgba(65,240,174,.55);background:rgba(65,240,174,.06)}
  .type-badge.jet{color:var(--cyan)}
  .type-badge.prop{color:var(--phos)}
  .type-badge.heavy{color:#8cc7ff}
  .type-badge.heli{color:var(--amber)}
  .pulse-focus{animation:focusPulse 1.2s ease-out 1}
  @keyframes focusPulse{0%{filter:drop-shadow(0 0 2px rgba(255,180,84,.4))}50%{filter:drop-shadow(0 0 18px rgba(255,180,84,1))}100%{filter:drop-shadow(0 0 6px rgba(255,180,84,.8))}}


  @media (max-height:820px){
    .flight-list{top:auto;max-height:320px}
  }
  @media (max-width:900px){
    .flight-list{left:16px;width:min(430px,calc(100vw - 32px));top:auto;max-height:340px}
  }

  @media (max-width:640px){
    .controls{width:calc(100vw - 32px);top:52px;max-height:42vh;overflow:auto}
    .controls.collapsed{display:none}
    .settings{left:16px;right:16px;top:52px;width:auto}
    #btnControls{display:inline-block}
    .panel{width:calc(100vw - 32px);top:auto;bottom:16px;transform:translateY(120%)}
    .panel.open{transform:translateY(0)}
    .brand span{display:none}
    .stat.hidemb{display:none}
  }


  /* ---------- light map modes ---------- */
  body[data-theme="day"],
  body[data-theme="streets"]{
    --bg:#e5edf1;
    --panel:rgba(255,255,255,.94);
    --panel-2:#f6fafc;
    --line:#c7d5de;
    --phos:#00c46f;
    --phos-dim:#4caa83;
    --cyan:#168fd1;
    --amber:#f5a623;
    --text:#1f2d3d;
    --text-dim:#5d7180;
  }
  /* .ctl/.settings/.panel hardcode a dark navy surface, so the day palette's
     dark --text disappears inside them. Restore light text on those surfaces. */
  body[data-theme="day"] .ctl,   body[data-theme="streets"] .ctl,
  body[data-theme="day"] .settings, body[data-theme="streets"] .settings,
  body[data-theme="day"] .panel, body[data-theme="streets"] .panel,
  body[data-theme="day"] .flight-list, body[data-theme="streets"] .flight-list,
  body[data-theme="day"] .sources-panel, body[data-theme="streets"] .sources-panel,
  body[data-theme="day"] .alert-log, body[data-theme="streets"] .alert-log,
  body[data-theme="day"] .header-aircraft-key, body[data-theme="streets"] .header-aircraft-key{
    --text:#e8f4fa;
    --text-dim:#9db4c2;
    color:var(--text);
  }
  body[data-theme="day"] .settings input::placeholder, body[data-theme="streets"] .settings input::placeholder{color:#8ba2b1}
  /* .cell/.photo-actions/.photo .credit use var(--panel) for their background,
     which is correct in every dark theme (satellite, hybrid, radar, default)
     -- restored to that above. Only day/streets flip --panel pale, which
     collides with the light text those surfaces need; give those two themes
     a fixed, always-dark tint here instead of touching the shared rule. */
  body[data-theme="day"] .cell, body[data-theme="streets"] .cell,
  body[data-theme="day"] .photo .credit, body[data-theme="streets"] .photo .credit,
  body[data-theme="day"] .photo .photo-actions, body[data-theme="streets"] .photo .photo-actions{
    background:rgba(11,27,41,.85);
  }

  body[data-theme="day"] header,
  body[data-theme="streets"] header{background:linear-gradient(180deg,rgba(248,252,254,.95),rgba(248,252,254,.80) 70%,transparent)}
  body[data-theme="day"] .ctl,
  body[data-theme="day"] .panel,
  body[data-theme="day"] .settings,
  body[data-theme="day"] .flight-list{box-shadow:0 8px 24px rgba(38,58,72,.18)}
  body[data-theme="streets"] .leaflet-tile-pane{filter:contrast(1.05) saturate(.92)}
  body[data-theme="day"] .leaflet-tile-pane{filter:brightness(1.01) contrast(1.07) saturate(.85)}
  body[data-theme="day"] .ac-label, body[data-theme="streets"] .ac-label{
    text-shadow:0 0 3px rgba(255,255,255,.98),0 0 8px rgba(255,255,255,.96)
  }
  /* .apt-icon/.mil-base-icon .tag are built for a dark map: coloured text on
     a dark halo. On a light basemap that halo is invisible and the text has
     no contrast, so airport/military codes vanished on Streets and Aviation
     day. Flip to a dark, saturated label with a light halo there instead. */
  body[data-theme="day"] .apt-icon .tag, body[data-theme="streets"] .apt-icon .tag{
    color:#0f6f96; text-shadow:0 0 3px rgba(255,255,255,.95),0 0 6px rgba(255,255,255,.85);
  }
  body[data-theme="day"] .mil-base-icon .tag, body[data-theme="streets"] .mil-base-icon .tag{
    color:#a15d00; text-shadow:0 0 3px rgba(255,255,255,.95),0 0 6px rgba(255,255,255,.85);
  }

  body[data-theme="radar"] .leaflet-tile-pane{filter:brightness(.85) saturate(.8)}
  body[data-theme="day"] #sweep{opacity:.45}
  body[data-theme="day"] .leaflet-container{background:#e5edf1}
  body[data-theme="hybrid"] .leaflet-tile-pane{filter:brightness(1.06) contrast(1.02) saturate(.9)}
  .leaflet-pane.leaflet-scopeLabels-pane{filter:none !important}
  /* roads: white basemap background vanishes over the imagery via multiply,
     coloured casing tints through */
  body[data-theme="hybrid"] .leaflet-scopeRoadTint-pane{mix-blend-mode:multiply;opacity:.92}
  /* labels: normal alpha compositing so the tile's own light halo still
     works against dark imagery -- multiplying this layer is what made city
     names unreadable */
  body[data-theme="hybrid"] .leaflet-scopeLabels-pane{mix-blend-mode:normal;opacity:1}
  body[data-theme="satellite"] .leaflet-tile-pane{filter:brightness(.78) contrast(1.05) saturate(.8)}
  body[data-theme="hybrid"],
  body[data-theme="satellite"]{
    --panel:rgba(10,18,26,.88);
    --panel-2:#101b25;
    --line:#284258;
  }

  .progress-card{margin-top:10px;background:rgba(0,0,0,.05);border:1px solid var(--line);border-radius:6px;padding:8px 9px}
  .progress-head{display:flex;justify-content:space-between;gap:8px;font-family:'Rajdhani',sans-serif;font-weight:700;font-size:16px;color:var(--text)}
  .progress-head span{color:var(--cyan)}
  .progress-track{height:6px;border-radius:999px;background:rgba(96,115,128,.25);overflow:hidden;margin:7px 0 5px}
  .progress-fill{height:100%;width:0%;background:linear-gradient(90deg,var(--amber),var(--phos));border-radius:999px}
  .progress-meta{display:flex;justify-content:space-between;color:var(--text-dim);font-size:9px;line-height:1.4}
  .photo{min-height:150px;position:relative;background:#d7e1e7}
  body[data-theme="hybrid"] .photo,
  body[data-theme="radar"] .photo, body[data-theme="satellite"] .photo{background:#000}
  .photo .photo-wrap{position:relative;background:#111;min-height:154px;display:flex;align-items:center;justify-content:center;overflow:hidden}
  .photo .photo-wrap img{display:block;width:100%;max-height:170px;object-fit:cover}
  .photo .photo-fallback{display:none;position:absolute;inset:0;align-items:center;justify-content:center;background:linear-gradient(135deg,#e8f1f5,#cfdce4);color:#244;}
  .photo .photo-wrap.failed img{display:none!important}
  .photo .photo-wrap.failed .photo-fallback{display:flex!important}
  body[data-theme="radar"] .photo .photo-fallback, body[data-theme="satellite"] .photo .photo-fallback{background:#06111B;color:#C9E4EF}


  /* ---------- Gold-tier extras: alerts, trail history, nearest, prediction ---------- */
  .gold-panel{display:none!important}
  .gold-panel.open{display:none!important}
  .gold-panel h3{font-family:'Rajdhani',sans-serif;font-size:16px;letter-spacing:.12em;color:var(--phos);padding:9px 12px;border-bottom:1px solid var(--line)}
  .gold-row{display:grid;grid-template-columns:1fr 56px 46px;gap:8px;align-items:center;padding:7px 10px;border-bottom:1px solid rgba(27,58,80,.5);font-size:10px;cursor:pointer}
  .gold-row:hover{background:rgba(65,240,174,.08)}
  .gold-row b{color:var(--phos);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
  .gold-row span{color:var(--text-dim);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;text-align:right}
  .gold-row .gold-tag{color:var(--amber);text-align:left;font-weight:700}
  .alert-log{position:absolute;right:16px;bottom:16px;z-index:920;width:280px;max-height:330px;overflow:auto;background:rgba(11,27,41,.92);border:1px solid var(--line);border-radius:6px;backdrop-filter:blur(6px);display:none}
  .alert-log.open{display:block}
  .alert-log h3{font-family:'Rajdhani',sans-serif;font-size:16px;letter-spacing:.12em;color:var(--amber);padding:9px 12px;border-bottom:1px solid var(--line)}
  .alert-item{padding:7px 10px;border-bottom:1px solid rgba(27,58,80,.5);font-size:10px;line-height:1.45;cursor:pointer}
  .alert-item:hover{background:rgba(255,180,84,.08)}
  .alert-item b{color:var(--amber)}
  .alert-time{color:var(--text-dim);font-size:9px}
  .trail-controls{padding:8px 14px;border-bottom:1px solid var(--line);display:flex;gap:5px;align-items:center;flex-wrap:wrap}
  .trail-controls .k{font-size:9px;letter-spacing:.15em;color:var(--text-dim);text-transform:uppercase;margin-right:3px}
  .trail-controls button{background:transparent;border:1px solid var(--line);color:var(--text);font-family:inherit;font-size:9px;padding:4px 6px;border-radius:4px;cursor:pointer}
  .trail-controls button.on{border-color:var(--amber);color:var(--amber);background:rgba(255,180,84,.08)}
  .settings .subhead{font-size:9px;letter-spacing:.16em;color:var(--phos);margin:13px 0 6px;text-transform:uppercase}
  .prediction-label{font-size:9px;color:var(--amber);letter-spacing:.08em;white-space:nowrap;text-shadow:0 0 4px rgba(6,17,27,.95)}
  .mini-toggle{display:flex;gap:6px;margin-top:7px}
  .mini-toggle .mini-btn{flex:1}
  @media (max-width:980px){.gold-panel{display:none!important}.alert-log{right:16px;width:250px;bottom:16px}}



  /* ---------- sticky panel headers ---------- */
  .flight-list h3,
  .alert-log h3{
    position:sticky;
    top:0;
    z-index:6;
    background:rgba(11,27,41,.98);
    backdrop-filter:blur(8px);
  }
  .flight-list .flight-sort{
    position:sticky;
    top:33px;
    z-index:5;
    background:rgba(11,27,41,.98);
    backdrop-filter:blur(8px);
  }
  .alert-log h3{
    box-shadow:0 1px 0 var(--line);
  }
  .flight-list h3{
    box-shadow:0 1px 0 var(--line);
  }
  @media (max-width:640px){
    .flight-list .flight-sort{top:33px;}
  }


  /* ---------- mobile / tablet adaptive layout ---------- */
  html.mobile-device body{touch-action:manipulation;}
  html.mobile-device header{
    padding:8px 10px;
    gap:8px;
    min-height:48px;
  }
  html.mobile-device .brand h1{font-size:18px;letter-spacing:.20em;}
  html.mobile-device .brand span{display:none;}
  html.mobile-device .stat.hidemb{display:none;}
  html.mobile-device #topSearch{
    width:min(38vw,180px)!important;
    font-size:9px!important;
    padding:6px 7px!important;
  }
  html.mobile-device #btnControls{display:inline-block;}
  html.mobile-device .controls{
    top:54px;left:8px;width:min(310px,calc(100vw - 16px));
    max-height:calc(100dvh - 70px);overflow:auto;
    z-index:1300;box-shadow:0 10px 28px rgba(0,0,0,.35);
  }
  html.mobile-device .controls.collapsed{display:none;}
  html.mobile-device .ctl{padding:8px 10px;}
  html.mobile-device .toggle-row{font-size:10px;line-height:1.15;}
  html.mobile-device .settings{
    top:54px;left:8px;right:8px;width:auto;max-height:calc(100dvh - 70px);overflow:auto;z-index:1350;
  }
  html.mobile-device .panel{
    left:8px;right:8px;bottom:8px;top:auto;width:auto;max-height:72dvh;
    transform:translateY(115%);z-index:1400;border-radius:10px;
  }
  html.mobile-device .panel.open{transform:translateY(0);}
  html.mobile-device .panel-body{max-height:calc(72dvh - 56px);}
  html.mobile-device .panel-head{padding:10px 12px;}
  html.mobile-device .panel-head .cs{font-size:22px;}
  html.mobile-device .photo .photo-wrap{min-height:120px;}
  html.mobile-device .photo .photo-wrap img{max-height:145px;}

  html.mobile-device .flight-list{
    left:8px;right:8px;bottom:8px;top:auto;width:auto;max-height:36dvh;
    border-radius:10px;z-index:930;
  }
  html.mobile-device .flight-list h3{font-size:15px;padding:8px 10px;}
  html.mobile-device .flight-list .flight-sort,
  html.mobile-device .flight-row{
    grid-template-columns:minmax(78px,1.1fr) 70px 70px 62px;
  }
  html.mobile-device .flight-row{font-size:10px;min-height:30px;padding:6px 9px;}
  html.mobile-device .type-badge{font-size:8px;padding:1px 3px;}
  html.mobile-device .flight-section{font-size:8.5px;padding:5px 9px 4px;}

  html.mobile-device .weather-timeline{
    left:8px;right:8px;bottom:calc(36dvh + 16px);transform:none;width:auto;min-width:0;
    padding:8px 10px;z-index:920;border-radius:10px;
  }
  html.mobile-device .weather-note{display:none;}
  html.mobile-device .weather-top{margin-bottom:5px;}
  html.mobile-device .weather-time{font-size:15px;min-width:58px;}
  html.mobile-device .weather-kind{display:none;}
  html.mobile-device .weather-bottom{gap:6px;}
  html.mobile-device .weather-ticks{font-size:7px;gap:5px;}
  html.mobile-device .weather-legend{display:none;}

  html.mobile-device .alert-log{
    left:8px;right:8px;top:54px;bottom:auto;width:auto;max-height:24dvh;
    z-index:925;border-radius:10px;
  }
  html.mobile-device .alert-log h3{font-size:15px;padding:8px 10px;}
  html.mobile-device .alert-item{font-size:9.5px;padding:6px 9px;}

  html.mobile-device .leaflet-control-zoom{margin-top:56px!important;}
  html.mobile-device .leaflet-control-attribution{font-size:8px!important;}

  @media (orientation:landscape){
    html.mobile-device .flight-list{width:min(430px,42vw);right:auto;max-height:42dvh;}
    html.mobile-device .weather-timeline{left:calc(min(430px,42vw) + 18px);right:8px;bottom:8px;}
    html.mobile-device .alert-log{left:auto;right:8px;width:min(300px,36vw);max-height:34dvh;}
    html.mobile-device .panel{left:auto;width:min(330px,42vw);right:8px;bottom:8px;max-height:calc(100dvh - 70px);}
    html.mobile-device .panel-body{max-height:calc(100dvh - 126px);}
  }

  @media (max-width:760px){
    header{padding:8px 10px;gap:8px;}
    .brand h1{font-size:18px;letter-spacing:.20em;}
    .brand span,.stat.hidemb{display:none;}
    #topSearch{width:min(38vw,180px)!important;font-size:9px!important;padding:6px 7px!important;}
    #btnControls{display:inline-block;}
    .controls{top:54px;left:8px;width:min(310px,calc(100vw - 16px));max-height:calc(100dvh - 70px);overflow:auto;z-index:1300;}
    .controls.collapsed{display:none;}
    .settings{top:54px;left:8px;right:8px;width:auto;max-height:calc(100dvh - 70px);overflow:auto;z-index:1350;}
    .sources-panel{top:54px;left:8px;right:8px;width:auto;max-height:calc(100dvh - 70px)}
    .source-item{grid-template-columns:1fr;gap:4px}
    .panel{left:8px;right:8px;bottom:8px;top:auto;width:auto;max-height:72dvh;transform:translateY(115%);z-index:1400;border-radius:10px;}
    .panel.open{transform:translateY(0);}
    .panel-body{max-height:calc(72dvh - 56px);}
    .flight-list{left:8px;right:8px;bottom:8px;top:auto;width:auto;max-height:36dvh;border-radius:10px;}
    .weather-timeline{left:8px;right:8px;bottom:calc(36dvh + 16px);transform:none;width:auto;min-width:0;border-radius:10px;}
    .weather-note,.weather-legend{display:none;}
    .alert-log{left:8px;right:8px;top:54px;bottom:auto;width:auto;max-height:24dvh;border-radius:10px;}
    .flight-list .flight-sort,.flight-row{grid-template-columns:minmax(78px,1.1fr) 70px 70px 62px;}
  }


  /* ---------- cleaner aviation-style toggles ---------- */
  .ctl .toggle-row span,
  .settings .toggle-row span{padding-right:8px}
  .ctl .toggle-row input[type="checkbox"],
  .settings .toggle-row input[type="checkbox"]{margin-left:auto}
  html.mobile-device .toggle-row input[type="checkbox"]{width:38px;height:20px}
  html.mobile-device .toggle-row input[type="checkbox"]::before{width:14px;height:14px}
  html.mobile-device .toggle-row input[type="checkbox"]:checked::before{transform:translateX(18px)}


  /* ---------- compact display panel refinement ---------- */
  .controls{width:205px;}
  .ctl{padding:8px 10px;}
  .ctl label{font-size:8px;margin-bottom:5px;letter-spacing:.14em;}
  .ctl .toggle-row{
    display:grid!important;
    grid-template-columns:minmax(0,1fr) 24px;
    align-items:center!important;
    gap:7px!important;
    min-height:18px!important;
    padding:0!important;
    margin:0!important;
    font-size:8.7px!important;
    line-height:1!important;
    letter-spacing:.105em!important;
  }
  .ctl .toggle-row + .toggle-row{margin-top:3px!important;}
  .ctl .toggle-row span{
    padding-right:0!important;
    white-space:nowrap!important;
    overflow:hidden;
    text-overflow:ellipsis;
  }
  .ctl .toggle-row input[type="checkbox"]{
    width:24px!important;
    height:12px!important;
    min-width:24px!important;
    margin:0!important;
    justify-self:end;
  }
  .ctl .toggle-row input[type="checkbox"]::before{
    width:7px!important;
    height:7px!important;
    left:2px!important;
    top:1.5px!important;
  }
  .ctl .toggle-row input[type="checkbox"]:checked::before{
    transform:translateX(12px)!important;
  }
  .tools-row{margin-top:6px!important;}
  .tools-row .mini-btn{padding:5px 6px!important;font-size:9px!important;}
  .airport-ring-legend,.airport-traffic-legend{display:none!important;}
  html.mobile-device .ctl .toggle-row input[type="checkbox"]{width:24px!important;height:12px!important;}
  html.mobile-device .ctl .toggle-row input[type="checkbox"]::before{width:7px!important;height:7px!important;}
  html.mobile-device .ctl .toggle-row input[type="checkbox"]:checked::before{transform:translateX(12px)!important;}



  /* ---------- compact settings toggles to match Display panel ---------- */
  .settings .toggle-row,
  .settings .watch-settings .toggle-row{
    display:grid!important;
    grid-template-columns:minmax(0,1fr) 24px!important;
    align-items:center!important;
    gap:8px!important;
    min-height:19px!important;
    padding:0!important;
    margin:0!important;
    font-size:8.9px!important;
    line-height:1!important;
    letter-spacing:.115em!important;
  }
  .settings .toggle-row + .toggle-row{margin-top:5px!important;}
  .settings .toggle-row span,
  .settings .watch-settings .toggle-row span{
    padding-right:0!important;
    white-space:nowrap!important;
    overflow:hidden!important;
    text-overflow:ellipsis!important;
  }
  .settings .toggle-row input[type="checkbox"],
  .settings .watch-settings .toggle-row input[type="checkbox"]{
    width:24px!important;
    height:12px!important;
    min-width:24px!important;
    margin:0!important;
    justify-self:end!important;
  }
  .settings .toggle-row input[type="checkbox"]::before,
  .settings .watch-settings .toggle-row input[type="checkbox"]::before{
    width:7px!important;
    height:7px!important;
    left:2px!important;
    top:1.5px!important;
  }
  .settings .toggle-row input[type="checkbox"]:checked::before,
  .settings .watch-settings .toggle-row input[type="checkbox"]:checked::before{
    transform:translateX(12px)!important;
  }
  .settings .watch-settings{
    padding:7px 8px!important;
    margin-top:5px!important;
  }
  .settings .watch-settings .hint{
    margin-top:6px!important;
    font-size:8.4px!important;
    line-height:1.35!important;
  }
  .settings .subhead{
    margin:10px 0 6px!important;
    font-size:8.8px!important;
  }
  .settings .mini-toggle{margin-top:8px!important;}
  .settings .mini-toggle .mini-btn{font-size:9px!important;padding:5px 6px!important;}
  html.mobile-device .settings .toggle-row input[type="checkbox"]{width:24px!important;height:12px!important;}
  html.mobile-device .settings .toggle-row input[type="checkbox"]::before{width:7px!important;height:7px!important;}
  html.mobile-device .settings .toggle-row input[type="checkbox"]:checked::before{transform:translateX(12px)!important;}



  /* ---------- FINAL: make Settings toggles identical to Display toggles ---------- */
  .settings .toggle-row,
  .settings .watch-settings .toggle-row{
    display:grid!important;
    grid-template-columns:minmax(0,1fr) 24px!important;
    align-items:center!important;
    gap:7px!important;
    min-height:18px!important;
    padding:0!important;
    margin:0!important;
    font-size:8.7px!important;
    line-height:1!important;
    letter-spacing:.105em!important;
  }
  .settings .toggle-row + .toggle-row,
  .settings .watch-settings .toggle-row + .toggle-row{
    margin-top:3px!important;
  }
  .settings .toggle-row span,
  .settings .watch-settings .toggle-row span{
    padding-right:0!important;
    white-space:nowrap!important;
    overflow:hidden!important;
    text-overflow:ellipsis!important;
  }
  .settings .toggle-row input[type="checkbox"],
  .settings .watch-settings .toggle-row input[type="checkbox"]{
    appearance:none!important;
    -webkit-appearance:none!important;
    width:24px!important;
    height:12px!important;
    min-width:24px!important;
    margin:0!important;
    justify-self:end!important;
    flex:none!important;
    cursor:pointer!important;
    border-radius:999px!important;
    position:relative!important;
    border:1px solid var(--line)!important;
    background:rgba(4,13,22,.85)!important;
    box-shadow:inset 0 0 5px rgba(0,0,0,.25)!important;
    transition:background .16s,border-color .16s,box-shadow .16s!important;
  }
  .settings .toggle-row input[type="checkbox"]::before,
  .settings .watch-settings .toggle-row input[type="checkbox"]::before{
    content:""!important;
    position:absolute!important;
    width:7px!important;
    height:7px!important;
    left:2px!important;
    top:1.5px!important;
    border-radius:50%!important;
    background:var(--text-dim)!important;
    box-shadow:0 0 3px rgba(0,0,0,.45)!important;
    transition:transform .16s,background .16s,box-shadow .16s!important;
  }
  .settings .toggle-row input[type="checkbox"]:checked,
  .settings .watch-settings .toggle-row input[type="checkbox"]:checked{
    border-color:var(--phos)!important;
    background:rgba(65,240,174,.18)!important;
    box-shadow:0 0 6px rgba(65,240,174,.16),inset 0 0 6px rgba(65,240,174,.08)!important;
  }
  .settings .toggle-row input[type="checkbox"]:checked::before,
  .settings .watch-settings .toggle-row input[type="checkbox"]:checked::before{
    transform:translateX(12px)!important;
    background:var(--phos)!important;
    box-shadow:0 0 6px rgba(65,240,174,.75)!important;
  }
  html.mobile-device .settings .toggle-row input[type="checkbox"],
  html.mobile-device .settings .watch-settings .toggle-row input[type="checkbox"]{
    width:24px!important;
    height:12px!important;
    min-width:24px!important;
  }
  html.mobile-device .settings .toggle-row input[type="checkbox"]::before,
  html.mobile-device .settings .watch-settings .toggle-row input[type="checkbox"]::before{
    width:7px!important;
    height:7px!important;
    left:2px!important;
    top:1.5px!important;
  }
  html.mobile-device .settings .toggle-row input[type="checkbox"]:checked::before,
  html.mobile-device .settings .watch-settings .toggle-row input[type="checkbox"]:checked::before{
    transform:translateX(12px)!important;
  }
  .settings .watch-settings{
    padding:6px 8px!important;
    margin-top:4px!important;
  }



  /* ---------- FINAL OVERRIDE: identical compact toggles for Display + Settings ---------- */
  .ctl label.toggle-row,
  .settings label.toggle-row,
  .settings .watch-settings label.toggle-row{
    display:grid!important;
    grid-template-columns:minmax(0,1fr) 24px!important;
    align-items:center!important;
    gap:7px!important;
    min-height:18px!important;
    padding:0!important;
    margin:0!important;
    font-size:8.7px!important;
    line-height:1!important;
    letter-spacing:.105em!important;
  }
  .ctl label.toggle-row + label.toggle-row,
  .settings label.toggle-row + label.toggle-row,
  .settings .watch-settings label.toggle-row + label.toggle-row{
    margin-top:3px!important;
  }
  .ctl label.toggle-row span,
  .settings label.toggle-row span,
  .settings .watch-settings label.toggle-row span{
    min-width:0!important;
    padding-right:0!important;
    white-space:nowrap!important;
    overflow:hidden!important;
    text-overflow:ellipsis!important;
  }
  .ctl label.toggle-row input[type="checkbox"],
  .settings label.toggle-row input[type="checkbox"],
  .settings .watch-settings label.toggle-row input[type="checkbox"]{
    appearance:none!important;
    -webkit-appearance:none!important;
    inline-size:24px!important;
    width:24px!important;
    min-width:24px!important;
    max-width:24px!important;
    block-size:12px!important;
    height:12px!important;
    min-height:12px!important;
    max-height:12px!important;
    padding:0!important;
    margin:0!important;
    justify-self:end!important;
    align-self:center!important;
    flex:0 0 24px!important;
    cursor:pointer!important;
    border-radius:999px!important;
    position:relative!important;
    border:1px solid var(--line)!important;
    background:rgba(4,13,22,.85)!important;
    box-shadow:inset 0 0 5px rgba(0,0,0,.25)!important;
    vertical-align:middle!important;
  }
  .ctl label.toggle-row input[type="checkbox"]::before,
  .settings label.toggle-row input[type="checkbox"]::before,
  .settings .watch-settings label.toggle-row input[type="checkbox"]::before{
    content:""!important;
    position:absolute!important;
    inline-size:7px!important;
    width:7px!important;
    block-size:7px!important;
    height:7px!important;
    left:2px!important;
    top:1.5px!important;
    border-radius:50%!important;
    background:var(--text-dim)!important;
    box-shadow:0 0 3px rgba(0,0,0,.45)!important;
    transform:none!important;
  }
  .ctl label.toggle-row input[type="checkbox"]:checked,
  .settings label.toggle-row input[type="checkbox"]:checked,
  .settings .watch-settings label.toggle-row input[type="checkbox"]:checked{
    border-color:var(--phos)!important;
    background:rgba(65,240,174,.18)!important;
    box-shadow:0 0 6px rgba(65,240,174,.16),inset 0 0 6px rgba(65,240,174,.08)!important;
  }
  .ctl label.toggle-row input[type="checkbox"]:checked::before,
  .settings label.toggle-row input[type="checkbox"]:checked::before,
  .settings .watch-settings label.toggle-row input[type="checkbox"]:checked::before{
    transform:translateX(12px)!important;
    background:var(--phos)!important;
    box-shadow:0 0 6px rgba(65,240,174,.75)!important;
  }
  .settings .watch-settings{
    padding:6px 8px!important;
    margin-top:4px!important;
  }

  /* ---------- fluid layout + notch safe-area (overflow fixes) ---------- */
  /* keep the top bar inside the viewport on every width and pad for the notch */
  header{
    min-width:0; max-width:100vw;
    padding-top:calc(10px + env(safe-area-inset-top));
    padding-left:calc(16px + env(safe-area-inset-left));
    padding-right:calc(16px + env(safe-area-inset-right));
  }
  #topSearch{min-width:0;}

  /* phones (by width OR by mobile UA): search shrinks to fit, the word
     "UPDATED" drops so the live clock alone always fits one line */
  @media (max-width:760px){
    header{
      padding-top:calc(8px + env(safe-area-inset-top));
      padding-left:calc(10px + env(safe-area-inset-left));
      padding-right:calc(10px + env(safe-area-inset-right));
    }
    #topSearch{flex:1 1 0; width:auto!important; max-width:150px;}
    #stStatus .stat-lbl{display:none;}
  }
  html.mobile-device header{
    padding-top:calc(8px + env(safe-area-inset-top));
    padding-left:calc(10px + env(safe-area-inset-left));
    padding-right:calc(10px + env(safe-area-inset-right));
  }
  html.mobile-device #topSearch{flex:1 1 0; width:auto!important; max-width:150px;}
  html.mobile-device #stStatus .stat-lbl{display:none;}
  /* bottom sheets clear the gesture bar / rounded screen corners */
  html.mobile-device .panel{bottom:calc(8px + env(safe-area-inset-bottom));}
  html.mobile-device .flight-list{bottom:calc(8px + env(safe-area-inset-bottom));}
  html.mobile-device .weather-timeline{bottom:calc(36dvh + 16px + env(safe-area-inset-bottom));}

  /* keep traffic overlays clear while Settings is open; controls are collapsed in JS instead of hidden,
     so the header CONTROLS and SETTINGS buttons never disappear or rename themselves. */
  body:has(#settingsPanel.open) .flight-list{display:none;}

  /* remove the +/- zoom buttons (scroll-wheel and pinch zoom still work) */
  .leaflet-control-zoom{display:none!important;}

  /* ---------- mobile home-screen tuning ---------- */
  /* more map: shorter traffic list, weather sits just above it */
  html.mobile-device .flight-list{max-height:30dvh;}
  html.mobile-device .weather-timeline{bottom:calc(30dvh + 14px + env(safe-area-inset-bottom));}
  /* open menus start below the notch-padded top bar so CONTROLS/SETTINGS stay visible */
  html.mobile-device .controls,
  html.mobile-device .settings{
    top:calc(54px + env(safe-area-inset-top));
    max-height:calc(100dvh - 76px - env(safe-area-inset-top));
  }
  html.mobile-device .alert-log{top:calc(54px + env(safe-area-inset-top));}
  /* tap the map to clear the info overlays (tap again to bring them back) */
  html.mobile-device body.map-clean .flight-list,
  html.mobile-device body.map-clean .weather-timeline,
  html.mobile-device body.map-clean .alert-log{display:none!important;}

  /* ---------- close buttons + collapsible bottom bars ---------- */
  .panel-x{position:absolute;top:8px;right:8px;z-index:6;width:30px;height:30px;display:flex;
    align-items:center;justify-content:center;background:rgba(11,27,41,.7);border:1px solid var(--line);
    border-radius:6px;color:var(--text-dim);font-size:14px;line-height:1;cursor:pointer;font-family:inherit;padding:0;}
  .panel-x:hover{border-color:var(--phos);color:var(--phos);}
  .settings h2{padding-right:36px;}
  .controls-titlebar .panel-x{display:flex;}

  /* tap the VISIBLE TRAFFIC / LIVE RADAR title bars to expand or collapse */
  html.mobile-device .flight-list h3,
  html.mobile-device .weather-timeline .weather-top{cursor:pointer;user-select:none;}
  html.mobile-device .flight-list h3::after{content:'\25BE';float:right;color:var(--text-dim);}
  html.mobile-device .flight-list.collapsed h3::after{content:'\25B8';}
  html.mobile-device .flight-list.collapsed{max-height:none;}
  html.mobile-device .flight-list.collapsed #flightRows,
  html.mobile-device .flight-list.collapsed .flight-sort{display:none!important;}
  html.mobile-device .weather-timeline .weather-top{position:relative;padding-right:18px;}
  html.mobile-device .weather-timeline .weather-top::after{content:'\25BE';position:absolute;right:0;top:50%;transform:translateY(-50%);color:var(--text-dim);}
  html.mobile-device .weather-timeline.collapsed .weather-top::after{content:'\25B8';}
  html.mobile-device .weather-timeline.collapsed .weather-mid,
  html.mobile-device .weather-timeline.collapsed .weather-bottom{display:none!important;}

  /* weather sits just above the traffic list and follows its height */
  html.mobile-device .flight-list + .weather-timeline{bottom:calc(30dvh + 14px + env(safe-area-inset-bottom));}
  html.mobile-device .flight-list.collapsed + .weather-timeline{bottom:calc(56px + env(safe-area-inset-bottom));}
  html.mobile-device .flight-list:not(.open) + .weather-timeline{bottom:calc(8px + env(safe-area-inset-bottom));}

  /* smaller close button inside the controls panel */


/* ---------- tidy mobile modal behavior ---------- */
html, body{
  width:100%;
  height:100%;
  max-width:100%;
  overflow:hidden!important;
  overscroll-behavior:none;
}
html.mobile-device body{
  position:fixed;
  inset:0;
  height:100dvh;
}
html.mobile-device #map{
  position:fixed;
  inset:0;
  height:100dvh;
  width:100vw;
}

/* Aircraft/airport details are a bottom half-sheet. The sheet itself scrolls, not the page. */
@media (max-width:760px){
  .panel{
    position:fixed!important;
    left:8px!important;
    right:8px!important;
    top:auto!important;
    bottom:calc(8px + env(safe-area-inset-bottom))!important;
    width:auto!important;
    height:50dvh!important;
    max-height:50dvh!important;
    transform:translateY(calc(100% + 18px))!important;
    border-radius:10px!important;
    overflow:hidden!important;
  }
  .panel.open{transform:translateY(0)!important;}
  .panel-body{
    max-height:calc(50dvh - 58px)!important;
    overflow-y:auto!important;
    overscroll-behavior:contain!important;
    -webkit-overflow-scrolling:touch;
  }
  .panel .photo img{max-height:135px!important;}
}
html.mobile-device .panel{
  position:fixed!important;
  left:8px!important;
  right:8px!important;
  top:auto!important;
  bottom:calc(8px + env(safe-area-inset-bottom))!important;
  width:auto!important;
  height:50dvh!important;
  max-height:50dvh!important;
  transform:translateY(calc(100% + 18px))!important;
  border-radius:10px!important;
  overflow:hidden!important;
}
html.mobile-device .panel.open{transform:translateY(0)!important;}
html.mobile-device .panel-body{
  max-height:calc(50dvh - 58px)!important;
  overflow-y:auto!important;
  overscroll-behavior:contain!important;
  -webkit-overflow-scrolling:touch;
}
html.mobile-device .panel .photo img{max-height:135px!important;}

/* Menus should not sit on top of the aircraft card. JS closes the cards too; this is a safety net. */
body:has(.controls:not(.collapsed)) #panel,
body:has(.controls:not(.collapsed)) #aptPanel,
body:has(#settingsPanel.open) #panel,
body:has(#settingsPanel.open) #aptPanel{
  transform:translateY(calc(100% + 18px))!important;
  pointer-events:none!important;
}


/* Fixed mobile aircraft sheet: it always occupies the bottom half only. */
html.mobile-device .panel{
  top:50dvh!important;
  bottom:calc(8px + env(safe-area-inset-bottom))!important;
  left:8px!important;
  right:8px!important;
  width:auto!important;
  height:auto!important;
  max-height:none!important;
  overflow:hidden!important;
  transform:translateY(115%);
}
html.mobile-device .panel.open{transform:translateY(0)!important;}
html.mobile-device .panel-body{
  max-height:calc(50dvh - 64px - env(safe-area-inset-bottom))!important;
  overflow:auto!important;
  overscroll-behavior:contain;
  -webkit-overflow-scrolling:touch;
}
html.mobile-device body,
html.mobile-device #app,
html.mobile-device #map{
  overflow:hidden!important;
  overscroll-behavior:none;
}


/* ---------- compact top-left mobile alert log ---------- */
@media (max-width:760px){
  .alert-log{
    left:calc(12px + env(safe-area-inset-left))!important;
    right:auto!important;
    top:calc(88px + env(safe-area-inset-top))!important;
    bottom:auto!important;
    width:min(305px,calc(100vw - 24px))!important;
    max-height:128px!important;
    border-radius:9px!important;
    z-index:760!important;
    opacity:.92!important;
  }
  .alert-log h3{font-size:11px!important;padding:6px 8px!important;letter-spacing:.13em!important;}
  .alert-item{
    font-size:7.8px!important;
    padding:4px 7px!important;
    line-height:1.25!important;
    white-space:nowrap;
    overflow:visible!important;
    text-overflow:clip!important;
  }
  .alert-item br{display:none!important;}
  .alert-time{font-size:7px!important;margin-left:4px;}
}
html.mobile-device body.top-menu-open .alert-log,
html.mobile-device body.detail-open .alert-log,
body.top-menu-open .alert-log,
body.detail-open .alert-log,
body:has(#settingsPanel.open) .alert-log,
body:has(.controls:not(.collapsed)) .alert-log,
body:has(#panel.open) .alert-log,
body:has(#airportPanel.open) .alert-log{
  display:none!important;
}

/* ---------- desktop/browser layout polish: right-side settings + fit-content alert log ---------- */
@media (min-width:761px){
  .settings{
    left:auto!important;
    right:16px!important;
    top:62px!important;
    width:min(300px,calc(100vw - 32px))!important;
    max-height:calc(100vh - 82px)!important;
    overflow:auto!important;
    z-index:1160!important;
  }
  .alert-log{
    left:auto!important;
    right:16px!important;
    top:auto!important;
    bottom:16px!important;
    width:max-content!important;
    min-width:300px!important;
    max-width:min(430px,calc(100vw - 32px))!important;
    max-height:42vh!important;
    overflow:auto!important;
    z-index:900!important;
  }
  .alert-log h3{
    font-size:15px!important;
    padding:8px 11px!important;
  }
  .alert-item{
    font-size:9.5px!important;
    line-height:1.35!important;
    padding:6px 10px!important;
    white-space:normal!important;
    overflow:visible!important;
    text-overflow:clip!important;
    overflow-wrap:break-word!important;
    word-break:normal!important;
  }
  .alert-item b{white-space:nowrap!important;}
  .alert-time{
    display:block!important;
    margin-left:0!important;
    padding-top:2px!important;
    font-size:8px!important;
  }
  body:has(#settingsPanel.open) .alert-log,
  body:has(.controls:not(.collapsed)) .alert-log,
  body:has(#panel.open) .alert-log,
  body:has(#aptPanel.open) .alert-log,
  body:has(#airportPanel.open) .alert-log{
    display:none!important;
  }
}

/* ---------- phone alert log: top-left but wide enough to wrap, never truncate ---------- */
@media (max-width:760px){
  .alert-log{
    left:calc(12px + env(safe-area-inset-left))!important;
    right:auto!important;
    top:calc(74px + env(safe-area-inset-top))!important;
    bottom:auto!important;
    width:min(340px,calc(100vw - 24px))!important;
    max-height:136px!important;
  }
  .alert-item{
    white-space:normal!important;
    overflow:visible!important;
    text-overflow:clip!important;
    overflow-wrap:break-word!important;
    word-break:normal!important;
  }
}

/* ---------- final Android/mobile alert log: compact auto-fit, time below ---------- */
@media (max-width:760px){
  .alert-log.open{display:inline-block!important;}
  .alert-log{left:calc(12px + env(safe-area-inset-left))!important;right:auto!important;top:calc(74px + env(safe-area-inset-top))!important;bottom:auto!important;width:auto!important;min-width:0!important;max-width:min(285px,calc(100vw - 24px))!important;max-height:132px!important;overflow-x:hidden!important;}
  #alertRows{display:block!important;width:auto!important;max-width:min(285px,calc(100vw - 24px))!important;}
  .alert-log h3{width:auto!important;display:block!important;}
  .alert-item{display:block!important;width:auto!important;min-width:0!important;max-width:min(265px,calc(100vw - 44px))!important;white-space:normal!important;overflow:visible!important;text-overflow:clip!important;overflow-wrap:break-word!important;word-break:normal!important;}
  .alert-item br{display:block!important;}
  .alert-time{display:block!important;margin-left:0!important;padding-top:1px!important;white-space:nowrap!important;}
}

/* ---------- SCOPE account and Firebase login ---------- */
.login-brand{display:none;text-align:center;margin:2px 0 20px;}
.login-brand h1{
  font-family:'Rajdhani',sans-serif;color:var(--phos);font-size:34px;
  line-height:1;letter-spacing:.28em;margin:0 0 7px;padding-left:.28em;
  text-shadow:0 0 22px rgba(65,240,174,.38);
}
.login-brand p{color:var(--text-dim);font-size:8px;letter-spacing:.22em;margin:0;}

.visitor-welcome{
  position:fixed;inset:0;z-index:1370;display:none;align-items:center;justify-content:flex-start;
  padding:clamp(82px,12vh,128px) clamp(18px,6vw,88px) 28px;
  pointer-events:none;
  background:linear-gradient(90deg,rgba(4,13,22,.88) 0%,rgba(4,13,22,.68) 29%,rgba(4,13,22,.08) 68%,transparent 100%);
}
.visitor-welcome.open{display:flex;}
.visitor-welcome-card{
  width:min(440px,calc(100vw - 36px));padding:clamp(22px,3vw,34px);
  pointer-events:auto;background:rgba(7,22,34,.91);border:1px solid rgba(83,200,240,.38);
  border-radius:10px;backdrop-filter:blur(14px);box-shadow:0 24px 70px rgba(0,0,0,.48);
}
.visitor-wordmark{
  font-family:'Rajdhani',sans-serif;color:var(--phos);font-size:clamp(38px,6vw,58px);
  font-weight:700;line-height:1;letter-spacing:.28em;padding-left:.28em;margin-bottom:16px;
  text-shadow:0 0 24px rgba(65,240,174,.42);
}
.visitor-kicker{
  color:var(--text);font-family:'Rajdhani',sans-serif;font-size:clamp(21px,3vw,30px);
  font-weight:600;line-height:1.15;letter-spacing:.02em;margin:0 0 9px;
}
.visitor-copy{color:var(--text-dim);font-size:11px;line-height:1.55;margin:0 0 18px;}
.visitor-primary,.visitor-secondary{
  width:100%;border-radius:5px;font-family:inherit;font-size:10px;font-weight:600;
  letter-spacing:.08em;padding:12px 10px;cursor:pointer;
}
.visitor-primary{
  color:#05151d;background:var(--phos);border:1px solid var(--phos);
  box-shadow:0 0 24px rgba(65,240,174,.2);
}
.visitor-primary:hover{background:#73f7c5;box-shadow:0 0 30px rgba(65,240,174,.34);}
.visitor-secondary{color:var(--text);background:rgba(4,13,22,.45);border:1px solid var(--line);margin-top:8px;}
.visitor-secondary:hover{border-color:var(--cyan);color:var(--cyan);}
.visitor-footnote{color:var(--text-dim);font-size:8.5px;line-height:1.45;text-align:center;margin:10px 0 0;}
body.visitor-intro-open .controls,
body.visitor-intro-open .settings,
body.visitor-intro-open .flight-list,
body.visitor-intro-open .alert-log,
body.visitor-intro-open .weather-timeline{filter:blur(1px);opacity:.36;pointer-events:none;}

@media (max-width:760px){
  .visitor-welcome{
    align-items:flex-end;justify-content:center;padding:calc(84px + env(safe-area-inset-top)) 14px calc(20px + env(safe-area-inset-bottom));
    background:linear-gradient(180deg,rgba(4,13,22,.04) 10%,rgba(4,13,22,.28) 42%,rgba(4,13,22,.92) 100%);
  }
  .visitor-welcome-card{width:100%;padding:21px 18px;}
  .visitor-wordmark{font-size:38px;margin-bottom:12px;}
  .visitor-kicker{font-size:23px;}
  .visitor-copy{font-size:10px;margin-bottom:15px;}
}

.account-panel{
  position:absolute;top:62px;right:16px;z-index:1380;width:330px;
  max-height:calc(100dvh - 82px);overflow:auto;display:none;
  padding:14px;background:rgba(11,27,41,.97);border:1px solid var(--line);
  border-radius:8px;backdrop-filter:blur(10px);box-shadow:0 16px 42px rgba(0,0,0,.42);
}
.account-panel.open{display:block;}
.account-panel[aria-busy="true"]{cursor:progress;}
.account-panel h2{
  font-family:'Rajdhani',sans-serif;color:var(--phos);font-size:19px;
  letter-spacing:.16em;margin:0;text-shadow:0 0 12px rgba(65,240,174,.3);
}
.account-heading{display:flex;align-items:flex-start;justify-content:space-between;gap:44px;padding-right:32px;margin-bottom:12px;}
.account-heading p{font-size:9px;color:var(--text-dim);line-height:1.45;margin-top:3px;}
.plan-badge{border:1px solid var(--phos-dim);border-radius:999px;padding:3px 7px;color:var(--phos);font-size:8px;letter-spacing:.12em;}
.account-message{display:none;margin:0 0 10px;padding:8px 9px;border:1px solid var(--line);border-radius:5px;font-size:9px;line-height:1.45;}
.account-message.show{display:block;}
.account-message.success{border-color:var(--phos-dim);color:var(--phos);background:rgba(65,240,174,.07);}
.account-message.error{border-color:rgba(255,107,107,.65);color:#ffd1d1;background:rgba(255,107,107,.08);}
.account-message.info{border-color:rgba(83,200,240,.55);color:var(--cyan);background:rgba(83,200,240,.07);}
.account-tabs{display:grid;grid-template-columns:1fr 1fr;gap:5px;margin-bottom:11px;}
.account-tabs button{background:transparent;border:1px solid var(--line);border-radius:4px;color:var(--text-dim);font-family:inherit;font-size:9px;letter-spacing:.08em;padding:7px 5px;cursor:pointer;}
.account-tabs button.on{border-color:var(--phos);color:var(--phos);background:rgba(65,240,174,.08);}
.account-form{display:none;}
.account-form.open{display:block;}
.account-form label{display:block;margin:9px 0 5px;color:var(--text-dim);font-size:8px;letter-spacing:.14em;text-transform:uppercase;}
.account-form input{
  width:100%;background:rgba(4,13,22,.58);border:1px solid var(--line);border-radius:4px;
  color:var(--text);font-family:inherit;font-size:11px;padding:8px 9px;outline:none;
}
.account-form input:focus{border-color:var(--phos-dim);box-shadow:0 0 0 2px rgba(65,240,174,.06);}
.account-primary,.account-secondary,.account-danger{
  width:100%;border-radius:4px;font-family:inherit;font-size:9px;letter-spacing:.09em;
  padding:8px 9px;cursor:pointer;margin-top:11px;
}
.account-primary{background:rgba(65,240,174,.13);border:1px solid var(--phos);color:var(--phos);}
.account-secondary{background:transparent;border:1px solid var(--line);color:var(--text);}
.account-danger{background:transparent;border:1px solid rgba(255,107,107,.5);color:#ffaaaa;}
.account-primary:hover,.account-secondary:hover{border-color:var(--phos);color:var(--phos);}
.account-danger:hover{border-color:var(--danger);color:var(--danger);}
.account-panel button:disabled{opacity:.45;cursor:wait;}
.account-link{display:block;margin:8px auto 0;background:transparent;border:0;color:var(--cyan);font-family:inherit;font-size:8.5px;cursor:pointer;padding:3px;}
.account-divider{display:flex;align-items:center;gap:8px;color:var(--text-dim);font-size:8px;margin:13px 0 0;}
.account-divider::before,.account-divider::after{content:"";height:1px;background:var(--line);flex:1;}
.account-hint{font-size:8.5px;line-height:1.45;color:var(--text-dim);margin-top:7px;}
.account-user-card{display:flex;align-items:center;gap:10px;padding:10px;background:rgba(4,13,22,.42);border:1px solid var(--line);border-radius:6px;margin-bottom:9px;}
.account-avatar{width:36px;height:36px;display:flex;align-items:center;justify-content:center;border-radius:50%;background:rgba(65,240,174,.12);border:1px solid var(--phos-dim);color:var(--phos);font-family:'Rajdhani',sans-serif;font-size:18px;font-weight:700;}
.account-user-card strong,.account-user-card span{display:block;max-width:225px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.account-user-card strong{font-family:'Rajdhani',sans-serif;font-size:15px;letter-spacing:.06em;color:var(--text);}
.account-user-card span{font-size:8.5px;color:var(--text-dim);margin-top:2px;}
.account-row{display:flex;justify-content:space-between;align-items:center;padding:8px 2px;border-bottom:1px solid rgba(27,58,80,.55);font-size:8.5px;letter-spacing:.1em;color:var(--text-dim);}
.account-row b{color:var(--phos);font-weight:600;}
.account-row b.unverified{color:var(--amber);}
.account-preview{border-top:1px solid var(--line);margin-top:14px;padding-top:11px;}
.account-preview h3{font-family:'Rajdhani',sans-serif;color:var(--amber);font-size:12px;letter-spacing:.11em;}
.account-preview p{font-size:8.5px;color:var(--text-dim);line-height:1.5;margin-top:4px;}

body:has(#accountPanel.open) #panel,
body:has(#accountPanel.open) #aptPanel{transform:translateY(calc(100% + 18px))!important;pointer-events:none!important;}
body:has(#accountPanel.open) .alert-log{display:none!important;}

@media (max-width:760px){
  #btnAccount{padding-left:6px;padding-right:6px;}
  .account-panel{
    top:calc(54px + env(safe-area-inset-top));left:8px;right:8px;width:auto;
    max-height:calc(100dvh - 70px - env(safe-area-inset-top));border-radius:10px;
    padding:13px;z-index:1450;
  }
  html.mobile-device #topSearch{max-width:110px!important;}
  .account-form input{font-size:16px;}
}

@media (max-width:480px){
  header{gap:4px!important;padding-left:7px!important;padding-right:7px!important;}
  #btnControls,#btnSettings,#btnAccount{font-size:7.5px;padding:5px 4px!important;}
  html.mobile-device #topSearch{max-width:68px!important;min-width:42px;}
  html.mobile-device #stStatus{display:none;}
}

/* ---------- Version 1.8: Guest / Free / Pro access ---------- */
.pro-chip,
.free-chip,
.range-btns button small{
  display:inline-flex;align-items:center;justify-content:center;
  margin-left:4px;padding:1px 4px;border:1px solid rgba(255,180,84,.62);
  border-radius:999px;color:var(--amber);font-family:'IBM Plex Mono',monospace;
  font-size:6px;line-height:1.25;letter-spacing:.08em;vertical-align:middle;
}
.free-chip{border-color:rgba(65,240,174,.55);color:var(--phos)}
.range-btns button{position:relative}
.range-btns button small{position:absolute;right:2px;top:2px;margin:0;padding:0 2px;font-size:5px}
body.plan-pro .pro-chip,
body.plan-free .free-chip,
body.plan-pro .free-chip,
body.plan-pro .range-btns button small{display:none}
body:not(.plan-pro) [data-pro-feature].pro-locked,
body:not(.plan-pro) .pro-alerts.pro-locked,
body.plan-guest [data-free-feature].free-locked{
  opacity:.58;cursor:pointer;
}
body:not(.plan-pro) [data-pro-feature].pro-locked:hover,
body:not(.plan-pro) .pro-alerts.pro-locked:hover,
body.plan-guest [data-free-feature].free-locked:hover{
  opacity:.82;border-color:rgba(255,180,84,.58);
}
body.plan-guest .plan-badge{border-color:rgba(255,180,84,.58);color:var(--amber)}
body.plan-free .plan-badge{border-color:rgba(65,240,174,.55);color:var(--phos)}
body.plan-pro .plan-badge{border-color:var(--phos-dim);color:var(--phos)}
.trail-controls button.pro-locked{position:relative;opacity:.55}
.trail-controls button.pro-locked::after{
  content:"PRO";position:absolute;right:-3px;top:-6px;padding:0 2px;
  border-radius:3px;background:var(--amber);color:#06111b;font-size:5px;font-weight:700;
}

/* ---------- Version 1.6: readable distance tool ---------- */
.measure-bar{
  position:absolute;left:50%;bottom:18px;z-index:1360;display:none;
  transform:translateX(-50%);width:min(560px,calc(100vw - 32px));
  align-items:center;justify-content:space-between;gap:12px;padding:10px 12px;
  background:rgba(6,17,27,.96);border:1px solid rgba(255,180,84,.82);
  border-radius:8px;box-shadow:0 10px 28px rgba(0,0,0,.42),0 0 16px rgba(255,180,84,.12);
  backdrop-filter:blur(8px);
}
.measure-bar.open{display:flex}
.measure-readout{min-width:0}
.measure-kicker{
  display:block;color:var(--amber);font-size:7px;font-weight:700;
  letter-spacing:.16em;margin-bottom:3px;
}

/* ---------- Version 1.9: fluid desktop header and collision guards ---------- */
header .spacer{min-width:0}
#topSearch{flex:0 1 190px;min-width:72px}

@media (min-width:761px) and (max-width:1399px){
  header{
    gap:8px;
    padding-left:10px;
    padding-right:10px;
  }
  .brand span,
  header .stat.hidemb{display:none}
  #topSearch{width:clamp(110px,17vw,180px)!important}
}

@media (min-width:761px) and (max-width:1050px){
  header{gap:5px}
  .brand h1{font-size:18px;letter-spacing:.20em}
  header .mini-btn{padding-left:7px;padding-right:7px}
  #topSearch{width:115px!important}
  #stStatus .stat-lbl{display:none}
  .controls{left:8px;width:200px}
  .flight-list{left:8px;width:min(360px,40vw)}
  .panel{right:8px;width:270px}
  .alert-log.open{
    right:8px!important;
    width:270px!important;
    min-width:270px!important;
    max-width:270px!important;
  }
  .weather-timeline{width:min(560px,52vw)}
}

@media (min-width:761px) and (max-width:860px){
  #topSearch{display:none}
  header .stat{font-size:9px}
}

@media (max-width:760px){
  header{
    gap:5px!important;
    padding-left:8px!important;
    padding-right:8px!important;
  }
  .brand{flex:none}
  #topSearch{
    flex:1 1 auto!important;
    width:auto!important;
    min-width:48px!important;
    max-width:none!important;
  }
  header .stat{display:none!important}
  .airport-weather-current{align-items:flex-start;gap:7px}
  .airport-weather-icon{width:32px;height:32px;font-size:17px}
  .airport-weather-temp{font-size:21px}
  .airport-weather-local{font-size:9px}
}

@media (max-width:430px){
  #topSearch{display:none}
}
.measure-readout strong{display:block;color:#fff;font-size:11px;line-height:1.35}
.measure-actions{display:flex;gap:5px;flex:none}
.measure-point{
  width:28px;height:28px;display:flex;align-items:center;justify-content:center;
  border-radius:50%;background:#06111b;border:2px solid #ffb454;color:#fff;
  font-size:12px;font-weight:700;box-shadow:0 0 0 3px rgba(6,17,27,.72),0 0 13px rgba(255,180,84,.75);
}
.measure-label{
  width:132px;min-height:44px;display:flex;flex-direction:column;
  align-items:center;justify-content:center;padding:6px 10px;
  transform:translateY(-8px);background:rgba(6,17,27,.97);
  border:2px solid #ffb454;border-radius:7px;color:#fff;text-align:center;
  box-shadow:0 3px 13px rgba(0,0,0,.75),0 0 10px rgba(255,180,84,.35);
  white-space:nowrap;
}
.measure-label strong{font-family:'Rajdhani',sans-serif;font-size:17px;line-height:1;color:#fff;letter-spacing:.04em}
.measure-label span{font-size:9px;line-height:1.2;color:#ffd29c;margin-top:3px;letter-spacing:.08em}
.measure-line{filter:drop-shadow(0 0 4px rgba(255,180,84,.9))}
.measure-line-halo{filter:drop-shadow(0 1px 2px rgba(0,0,0,.95))}

@media (max-width:760px){
  .measure-bar{
    left:8px;right:8px;bottom:calc(12px + env(safe-area-inset-bottom));
    width:auto;transform:none;padding:10px;gap:8px;
  }
  .measure-readout strong{font-size:10px}
  .measure-actions .mini-btn{font-size:7px;padding:6px 7px}
  .measure-label{transform:translateY(-12px)}
}

@media (prefers-reduced-motion:reduce){
  .ac-icon.emergency{animation:none}
}

/* ---------- Version 1.6.2: header aircraft key and detail/alert stack ---------- */
.aircraft-key{
  display:flex;align-items:center;gap:8px;color:var(--text-dim);
  font-size:7px;line-height:1;white-space:nowrap;
}
.aircraft-key-title{
  color:var(--text-dim);font-size:6.5px;letter-spacing:.14em;
  padding-right:8px;border-right:1px solid rgba(27,58,80,.72);
}
.aircraft-key span{display:flex;align-items:center;gap:5px;white-space:nowrap}
.header-aircraft-key{
  margin-left:4px;padding:5px 8px;border:1px solid rgba(27,58,80,.72);
  border-radius:5px;background:rgba(11,27,41,.60);backdrop-filter:blur(5px);
}
.key-swatch{
  width:9px;height:9px;display:inline-block;flex:none;
  background:currentColor;clip-path:polygon(50% 0,63% 37%,100% 55%,63% 64%,58% 100%,42% 100%,37% 64%,0 55%,37% 37%);
  filter:drop-shadow(0 0 3px currentColor);
}
.key-civil{color:#41F0AE}
.key-heavy{color:#53C8F0}
.key-heli{color:#C084FC}
.key-military{color:#FFB454}
.key-emergency{color:#FF6B6B}

@media (max-width:1599px){
  .header-aircraft-key{display:none}
}

@media (min-width:761px){
  .alert-log.open{
    left:auto!important;
    right:16px!important;
    width:280px!important;
    min-width:280px!important;
    max-width:280px!important;
    height:330px!important;
    max-height:330px!important;
    overflow:auto!important;
  }
  body.detail-alert-stack .alert-log.open,
  body.detail-alert-stack:has(#panel.open) .alert-log.open{
    display:block!important;
    left:auto!important;
    right:var(--detail-alert-right,16px)!important;
    top:var(--detail-alert-top,540px)!important;
    bottom:auto!important;
    width:var(--detail-alert-width,280px)!important;
    min-width:var(--detail-alert-width,280px)!important;
    max-width:var(--detail-alert-width,280px)!important;
    height:330px!important;
    max-height:330px!important;
    overflow:auto!important;
    z-index:980!important;
  }
  body.detail-alert-stack .alert-log h3{
    font-size:13px!important;padding:7px 9px!important;
  }
  body.detail-alert-stack .alert-item{
    font-size:9px!important;line-height:1.3!important;padding:5px 8px!important;
  }
  body.detail-alert-stack .alert-time{
    font-size:7.5px!important;padding-top:1px!important;
  }
}

/* ---------- Version 1.6.4: consistent desktop alerts + compact mobile weather ---------- */
@media (min-width:761px){
  .alert-log.open,
  body.detail-alert-stack .alert-log.open,
  body.detail-alert-stack:has(#panel.open) .alert-log.open{
    width:280px!important;
    min-width:280px!important;
    max-width:280px!important;
    height:330px!important;
    max-height:330px!important;
    overflow:auto!important;
  }
  .alert-log h3,
  body.detail-alert-stack .alert-log h3{
    font-size:15px!important;
    line-height:1.2!important;
    padding:8px 11px!important;
    letter-spacing:.12em!important;
  }
  .alert-item,
  body.detail-alert-stack .alert-item{
    font-size:9.5px!important;
    line-height:1.35!important;
    padding:6px 10px!important;
    white-space:normal!important;
    overflow-wrap:break-word!important;
  }
  .alert-time,
  body.detail-alert-stack .alert-time{
    display:block!important;
    margin-left:0!important;
    padding-top:2px!important;
    font-size:8px!important;
  }
}

@media (max-width:760px){
  html.mobile-device .weather-timeline:not(.open){
    display:none!important;
  }
  html.mobile-device .weather-timeline.open{
    display:block!important;
    left:calc(12px + env(safe-area-inset-left))!important;
    right:calc(12px + env(safe-area-inset-right))!important;
    top:auto!important;
    bottom:calc(66px + env(safe-area-inset-bottom))!important;
    transform:none!important;
    width:auto!important;
    min-width:0!important;
    max-height:48px!important;
    padding:8px 10px!important;
    border-radius:9px!important;
    z-index:905!important;
  }
  html.mobile-device .flight-list:not(.collapsed) + .weather-timeline.open{
    bottom:calc(30dvh + 14px + env(safe-area-inset-bottom))!important;
  }
  html.mobile-device .weather-timeline .weather-top{
    margin:0!important;
    padding:0!important;
    gap:8px!important;
  }
  html.mobile-device .weather-timeline .weather-badge{
    min-width:auto!important;
    font-size:9px!important;
  }
  html.mobile-device .weather-timeline .weather-note,
  html.mobile-device .weather-timeline .weather-mid,
  html.mobile-device .weather-timeline .weather-bottom,
  html.mobile-device .weather-timeline .weather-top::after{
    display:none!important;
  }
  html.mobile-device .weather-timeline .weather-age{
    margin-left:auto!important;
    max-width:65vw!important;
    overflow:hidden!important;
    text-overflow:ellipsis!important;
    font-size:8px!important;
  }
}

/* ---------- Version 1.9 final responsive overrides ---------- */
@media (min-width:761px) and (max-width:1050px){
  .alert-log.open,
  body.detail-alert-stack .alert-log.open,
  body.detail-alert-stack:has(#panel.open) .alert-log.open{
    width:260px!important;
    min-width:260px!important;
    max-width:260px!important;
  }
  /*
   * Keep the traffic table beside Controls on compact desktop windows.
   * Previously both panels occupied the same bottom-left space between
   * roughly 760px and 1050px wide.
   */
  .flight-list{
    left:216px!important;
    right:auto!important;
    top:62px!important;
    bottom:auto!important;
    width:clamp(240px,calc(100vw - 500px),320px)!important;
    max-height:320px!important;
  }
}

@media (max-width:760px){
  header{
    gap:6px!important;
  }
  header .brand{
    flex:0 0 auto!important;
  }
  header .top-search{
    min-width:0!important;
    max-width:150px!important;
    flex:1 1 100px!important;
  }
  header .btn{
    flex:0 0 auto!important;
  }
}

@media (max-width:430px){
  header .top-search{
    display:none!important;
  }
}