:root{--bg:#0f1923;--panel:rgba(10,20,30,.82);--panel-solid:#1a2736;--card:#243447;--border:#2d4a5e;--text:#e0e8f0;--dim:#6a8a9a;--accent:#4ae0a0;--accent-bg:rgba(74,224,160,.15);--grn:#2ecc71;--red:#e74c3c;--yel:#f0a040;--blue:#4aa0e0}
*{box-sizing:border-box;margin:0;padding:0}
body{background:var(--bg);color:var(--text);font-family:'Segoe UI',system-ui,-apple-system,sans-serif;font-size:13px;height:100vh;overflow:hidden}

/* === HUD CONTAINER === */
#hud{position:relative;width:100%;height:100vh;background:var(--bg);overflow:hidden}

/* === VIEWPORT (full bleed) === */
#viewport{position:absolute;inset:0;background:var(--card);overflow:hidden}
#viewport canvas{position:absolute;top:0;left:0;width:100%;height:100%}
#vp-base{z-index:1}
#vp-overlay{z-index:2}
#vp-tier{position:absolute;top:8px;left:60px;z-index:3;font-size:9px;color:var(--text);background:var(--panel);padding:3px 10px;border-radius:10px;letter-spacing:.5px;text-transform:uppercase;font-weight:600}
#vp-construction{position:absolute;top:36px;left:60px;z-index:3;flex-direction:column;align-items:flex-start;gap:2px;background:rgba(18,12,8,.9);border:1px solid rgba(240,160,64,.45);border-radius:6px;padding:6px 12px 7px;pointer-events:none;box-shadow:0 4px 16px rgba(0,0,0,.35)}
.vp-construction-text{font-size:10px;font-weight:700;color:var(--yel);letter-spacing:.12em;text-transform:uppercase}
.vp-construction-sub{font-size:9px;color:var(--dim);letter-spacing:.02em;max-width:200px;line-height:1.3}
#vp-loading{position:absolute;inset:0;z-index:4;display:flex;align-items:center;justify-content:center;background:var(--bg);color:var(--dim);font-size:11px}
.vp-weather{position:absolute;top:0;left:0;width:100%;height:100%;z-index:3;pointer-events:none}

/* === ICON RAIL === */
#icon-rail{position:absolute;top:12px;left:12px;bottom:44px;display:flex;flex-direction:column;gap:4px;width:42px;z-index:10}
.rail-group{background:var(--panel);border-radius:6px;padding:5px;display:flex;flex-direction:column;gap:2px}
.rail-btn{width:32px;height:32px;border-radius:4px;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:background .15s}
.rail-btn:hover{background:rgba(255,255,255,.06)}
.rail-btn.active{background:rgba(74,224,160,.15)}
.rail-btn.active svg *{stroke:#4ae0a0;fill:none}
.rail-btn.active svg text{fill:#4ae0a0;stroke:none}

/* === FLYOUT === */
#flyout{position:absolute;left:62px;background:rgba(10,20,30,.92);border-radius:6px;padding:10px 14px;min-width:200px;z-index:10}
#flyout-title{font-size:11px;font-weight:500;color:var(--accent);margin-bottom:8px;text-transform:uppercase;letter-spacing:.5px}
.flyout-item{font-size:12px;color:#c0d0dd;cursor:pointer;padding:5px 8px;border-radius:4px;transition:background .15s}
.flyout-item:hover{background:rgba(255,255,255,.05)}

/* === HUD CHIPS === */
.hud-chip{background:var(--panel);border-radius:6px;padding:5px 12px;display:flex;align-items:center;gap:8px}

/* === TOP CENTER === */
#hud-top-center{position:absolute;top:12px;left:50%;transform:translateX(-50%);display:flex;gap:6px;align-items:center;z-index:5}

/* === TOP RIGHT: Cash + financials rollover === */
#hud-top-right{position:absolute;top:12px;right:12px;background:var(--panel);border-radius:6px;padding:8px 14px;text-align:right;z-index:5}
#cash-fin-wrap{position:relative;outline:none}
#cash-fin-wrap:focus-visible{box-shadow:0 0 0 2px rgba(74,224,160,.45);border-radius:4px}
#cash-fin-bridge{position:absolute;top:100%;left:0;right:0;height:10px}
#cash-fin-popover{
  position:absolute;top:calc(100% + 10px);right:0;width:min(300px,calc(100vw - 48px));max-height:min(420px,55vh);overflow-y:auto;
  background:rgba(10,20,30,.95);border:1px solid rgba(74,224,160,.22);border-radius:8px;padding:12px 14px;text-align:left;
  box-shadow:0 12px 40px rgba(0,0,0,.45);z-index:25;
  visibility:hidden;opacity:0;pointer-events:none;transition:opacity .12s ease,visibility .12s ease
}
#cash-fin-wrap:hover #cash-fin-popover,#cash-fin-wrap:focus-within #cash-fin-popover{visibility:visible;opacity:1;pointer-events:auto}
.cash-fin-title{font-size:10px;font-weight:600;color:var(--accent);text-transform:uppercase;letter-spacing:.6px;margin-bottom:8px}
.cash-fin-box{margin-bottom:8px!important;padding:10px 12px!important}
.cash-fin-box .shead:first-child{margin-top:0}
.cash-fin-box .brkrow{font-size:11px}
.cash-fin-foot{margin-bottom:0!important;padding:10px 12px!important}
.cash-fin-foot .brkrow{font-size:11px}

/* === CONSTRUCTION PANEL === */
#hud-builds{position:absolute;bottom:100px;left:62px;max-width:min(300px,calc(100vw - 200px));max-height:min(200px,28vh);overflow-y:auto;z-index:5;background:var(--panel);border-radius:8px;padding:8px 12px 10px;border:1px solid rgba(240,160,64,.2)}
.hud-builds-title{font-size:9px;font-weight:600;color:var(--yel);text-transform:uppercase;letter-spacing:.55px;margin-bottom:6px}
#hud-builds #build-list .bitem{margin-bottom:6px}
#hud-builds #build-list .bitem:last-child{margin-bottom:0}

/* === BOTTOM LEFT: Stats === */
#hud-bottom-left{position:absolute;bottom:44px;left:62px;display:flex;gap:6px;z-index:5}
.hud-stat{background:var(--panel);border-radius:6px;padding:5px 10px;text-align:center}
.hud-stat-label{font-size:9px;color:var(--dim);text-transform:uppercase;letter-spacing:.5px}
.hud-stat-value{font-size:15px;font-weight:500;color:var(--text)}
.flights-stat-wrap{position:relative;outline:none}
.flights-stat-wrap:focus-visible{box-shadow:0 0 0 2px rgba(74,160,224,.45);border-radius:6px}
#flights-routes-bridge{position:absolute;bottom:100%;left:0;right:0;height:10px}
#flights-routes-popover{
  position:absolute;bottom:calc(100% + 10px);left:0;width:min(340px,calc(100vw - 100px));max-height:min(340px,48vh);overflow-y:auto;
  background:rgba(10,20,30,.95);border:1px solid rgba(74,160,224,.25);border-radius:8px;padding:10px 12px 12px;text-align:left;
  box-shadow:0 -8px 32px rgba(0,0,0,.45);z-index:25;
  visibility:hidden;opacity:0;pointer-events:none;transition:opacity .12s ease,visibility .12s ease
}
.flights-stat-wrap:hover #flights-routes-popover,.flights-stat-wrap:focus-within #flights-routes-popover{visibility:visible;opacity:1;pointer-events:auto}
.flights-routes-title{font-size:10px;font-weight:600;color:var(--accent);text-transform:uppercase;letter-spacing:.55px;margin-bottom:8px}
#flights-routes-popover #routes-panel{font-size:11px}
#flights-routes-popover .rg-al:first-of-type{margin-top:0}

/* === BOTTOM RIGHT: Util Bars === */
#hud-bottom-right{position:absolute;bottom:44px;right:12px;background:var(--panel);border-radius:6px;padding:8px 12px;min-width:150px;z-index:5}
.util-row{display:flex;align-items:center;gap:6px;margin-bottom:4px}
.util-row:last-child{margin-bottom:0}
.util-label{font-size:9px;color:var(--dim);width:30px;text-transform:uppercase}
.util-track{flex:1;height:5px;background:rgba(255,255,255,.1);border-radius:3px;overflow:hidden}
.util-fill{height:100%;border-radius:3px;transition:width .4s}
.util-val{font-size:9px;color:var(--dim);min-width:40px;text-align:right}
#sat-trigger:hover{background:rgba(240,160,64,.1);border-radius:4px;padding:2px 0}

/* === SAT POPOVER === */
#sat-popover{position:absolute;bottom:94px;right:12px;width:260px;background:rgba(10,20,30,.92);border-radius:6px;padding:12px 14px;border:1px solid rgba(240,160,64,.25);z-index:20}

/* === TICKER === */
#ticker{position:absolute;bottom:0;left:0;right:0;height:32px;background:rgba(10,20,30,.88);border-top:1px solid rgba(255,255,255,.06);overflow:hidden;display:flex;align-items:center;z-index:5}
#ticker-track{display:flex;align-items:center;white-space:nowrap;animation:tickerScroll 28s linear infinite}
@keyframes tickerScroll{0%{transform:translateX(0)}100%{transform:translateX(-50%)}}
.ticker-item{display:inline-flex;align-items:center;gap:6px;padding:0 24px}
.ticker-sep{color:#2a3a4a;font-size:11px}
.ticker-tag{font-size:9px;font-weight:500;padding:1px 6px;border-radius:3px}
.ticker-msg{font-size:11px;color:#c0d0dd}
.tag-pax .ticker-tag{background:rgba(74,160,224,.2);color:var(--blue)}
.tag-news .ticker-tag{background:rgba(74,224,160,.2);color:var(--accent)}
.tag-airline .ticker-tag{background:rgba(240,160,64,.2);color:var(--yel)}
.tag-warn .ticker-tag,.tag-worker .ticker-tag{background:rgba(224,80,80,.2);color:#e05050}
.tag-build .ticker-tag{background:rgba(74,160,224,.2);color:var(--blue)}
.tag-nego .ticker-tag{background:rgba(240,160,64,.1);color:var(--yel)}

/* === ALERTS FLOAT === */
#alert-float{position:absolute;top:60px;left:62px;z-index:8;width:220px}
.alert-item{padding:6px 8px;background:var(--panel);border-left:3px solid var(--yel);margin-bottom:4px;cursor:pointer;line-height:1.4;border-radius:0 6px 6px 0;font-size:11px}
.alert-item:hover{background:rgba(36,52,71,.8)}
.alert-item.adot-red{border-left-color:var(--red)}
.alert-item.adot-yellow{border-left-color:var(--yel)}
.alert-item.adot-blue{border-left-color:var(--blue)}
.atitle{color:var(--text);font-weight:700;font-size:10px;margin-bottom:1px}
.amsg{color:var(--dim);font-size:9px}

/* === EXISTING STYLES (modal, game elements) === */
.good{color:var(--grn)!important}.warn{color:var(--yel)!important}.bad{color:var(--red)!important}
.key{color:var(--dim)}.val{color:var(--text);font-weight:600}
.sec{color:var(--accent);font-size:9px;text-transform:uppercase;letter-spacing:.5px;margin:10px 0 4px;padding-bottom:3px;border-bottom:1px solid var(--border);font-weight:600}
button{display:block;width:100%;padding:7px 10px;background:none;border:none;color:var(--dim);cursor:pointer;font-family:'Segoe UI',system-ui,sans-serif;font-size:11px;text-align:left;transition:all .15s;line-height:1.4;margin-bottom:1px;border-radius:6px;font-weight:500}
button:hover{background:var(--card);color:var(--text)}
button:disabled{opacity:.35;cursor:not-allowed}
.brkbox{background:var(--card);border:1px solid var(--border);padding:10px 12px;margin:4px 0 6px;font-size:11px;line-height:1.9;border-radius:6px}
.brkrow{display:flex;justify-content:space-between}
.brktot{display:flex;justify-content:space-between;border-top:1px solid var(--border);margin-top:4px;padding-top:4px}
.overlay{position:fixed;inset:0;background:rgba(0,0,0,.7);display:flex;align-items:center;justify-content:center;z-index:100}
.modal{background:var(--panel-solid);border:1px solid var(--border);border-radius:12px;max-width:620px;width:95%;max-height:90vh;display:flex;flex-direction:column;overflow:hidden}
.mhead{padding:16px 18px;border-bottom:1px solid var(--border);display:flex;justify-content:space-between;align-items:center}
.mhead h3{color:var(--accent);font-size:14px;font-weight:700;text-transform:none;letter-spacing:0}
.xbtn{background:none;border:none;color:var(--dim);font-size:18px;cursor:pointer;padding:0;width:auto;margin:0;display:inline-block;line-height:1;border-radius:0}
.xbtn:hover{color:var(--accent)}
.mbody{padding:16px 18px;overflow-y:auto;flex:1}
.mfoot{padding:12px 18px;border-top:1px solid var(--border);display:flex;gap:8px;justify-content:flex-end}
.mfoot button{width:auto;padding:7px 18px;margin:0;border-radius:6px}
.mfoot .primary{background:var(--accent);color:#000;font-weight:700}
.mfoot .primary:hover{background:#33c4e0}
.ogrid{display:grid;grid-template-columns:repeat(auto-fill,minmax(155px,1fr));gap:8px;margin-bottom:10px}
.ocard{border:1px solid var(--border);padding:10px;cursor:pointer;background:var(--card);border-radius:8px;transition:border-color .2s}
.ocard:hover{border-color:var(--accent);background:rgba(36,52,71,.9)}
.ocard.sel{border-color:var(--accent);background:rgba(0,180,216,.08)}
.ocard.locked{border-color:var(--border);background:rgba(15,25,35,.5);cursor:default;opacity:.45}
.oname{font-size:12px;font-weight:700;color:var(--text);margin-bottom:4px}
.ocost{color:var(--yel);font-size:11px;margin-bottom:2px;font-weight:600}
.otime{color:var(--accent);font-size:10px;margin-bottom:4px}
.odesc{color:var(--dim);font-size:10px;line-height:1.4}
.oeffect{color:var(--grn);font-size:10px;margin-top:3px}
.obadge{display:inline-block;font-size:9px;padding:1px 6px;border-radius:10px;margin-top:4px;font-weight:600}
.bq{background:rgba(46,204,113,.15);color:var(--grn)}.br{background:rgba(155,89,182,.15);color:#bb86fc}.bf{background:rgba(0,180,216,.15);color:var(--accent)}.bl{background:var(--card);color:var(--dim)}
.corow{display:flex;gap:8px;margin-top:10px}
.cocard{flex:1;border:1px solid var(--border);padding:8px;cursor:pointer;background:var(--card);border-radius:8px;transition:border-color .2s}
.cocard:hover{border-color:var(--accent)}
.cocard.sel{border-color:var(--grn)}
.coname{font-size:11px;font-weight:700;color:var(--text);margin-bottom:3px}
.codet{font-size:10px;color:var(--dim);line-height:1.4}
.bitem{padding:8px 10px;background:var(--card);border:1px solid var(--border);margin-bottom:5px;font-size:11px;border-radius:6px}
.bname{color:var(--accent);margin-bottom:3px;font-weight:600}
.bprog{height:5px;background:var(--border);border-radius:3px;margin-top:4px}
.bbar{height:100%;background:var(--grn);border-radius:3px}
.statbox{background:var(--card);border:1px solid var(--border);padding:12px;margin-bottom:12px;font-size:11px;line-height:1.9;border-radius:8px}
.satbox{font-size:11px;line-height:1.9;background:var(--card);border:1px solid var(--border);padding:12px;border-radius:8px}
.shead{font-size:9px;text-transform:uppercase;letter-spacing:.5px;color:var(--dim);margin-bottom:4px;font-weight:600}
.ctx-box{background:var(--card);border:1px solid var(--border);padding:12px;margin-bottom:12px;font-size:11px;line-height:1.9;border-radius:8px}
.ha-msg{background:rgba(46,204,113,.05);border:1px solid rgba(46,204,113,.2);padding:12px;margin-bottom:12px;font-size:12px;line-height:1.8;color:var(--text);border-left:4px solid var(--grn);border-radius:0 8px 8px 0}
.ha-threat{background:rgba(231,76,60,.05);border:1px solid rgba(231,76,60,.2);border-left:4px solid var(--red)}
.nr{padding:14px;border:1px solid var(--border);font-size:12px;line-height:1.8;margin-top:4px;border-radius:8px;background:var(--card)}
.nr.ok{border-color:var(--grn);background:rgba(46,204,113,.05)}
.nr.no{border-color:var(--red);background:rgba(231,76,60,.05)}
.nr-title{font-size:13px;font-weight:700;margin-bottom:8px}
.nr-eff{margin-top:8px;padding-top:8px;border-top:1px solid var(--border);color:var(--dim);font-size:11px}
.lbadge{display:inline-block;padding:1px 6px;border-radius:10px;font-size:9px;font-weight:600;margin-left:6px}
.lb1{background:rgba(46,204,113,.12);color:var(--grn);border:1px solid rgba(46,204,113,.3)}
.lb2{background:rgba(0,180,216,.12);color:var(--accent);border:1px solid rgba(0,180,216,.3)}
.lb3{background:rgba(187,134,252,.12);color:#bb86fc;border:1px solid rgba(187,134,252,.3)}
.rg-al{color:var(--accent);font-size:11px;font-weight:700;margin:8px 0 3px}
.rg-row{display:grid;grid-template-columns:1fr 36px 1fr 52px;gap:4px;font-size:10px;padding:3px 2px;border-top:1px solid rgba(45,74,94,.3);color:var(--dim)}
.rg-head{color:var(--dim);border-top:none;font-size:9px;text-transform:uppercase;letter-spacing:.5px;padding-bottom:2px}
.fboard{background:var(--card);border:1px solid var(--border);padding:10px;border-radius:8px}
.fb-head{display:grid;grid-template-columns:52px 1fr 52px 90px;gap:4px;font-size:9px;color:var(--dim);text-transform:uppercase;letter-spacing:.5px;padding-bottom:4px;border-bottom:1px solid var(--border);margin-bottom:4px;font-weight:600}
.fb-row{display:grid;grid-template-columns:52px 1fr 52px 90px;gap:4px;font-size:10px;padding:3px 0;border-bottom:1px solid rgba(45,74,94,.2);color:var(--text)}
.fb-flt{color:var(--accent);font-weight:700}
.fb-ok{color:var(--grn)}.fb-late{color:var(--yel)}.fb-board{color:var(--accent)}.fb-dep{color:var(--dim)}
.fb-title{color:var(--dim);font-size:10px;margin-bottom:6px;text-transform:uppercase;letter-spacing:1px;font-weight:600}
.back-btn{width:auto;padding:4px 12px;font-size:10px;border:1px solid var(--border);margin-top:6px;border-radius:5px;background:var(--card)}
.lever-row{display:flex;align-items:center;gap:8px;margin-bottom:6px;padding:6px 10px;background:rgba(0,0,0,.12);border-radius:6px;border:1px solid var(--border)}
.lever-label{width:65px;font-size:9px;color:var(--dim);font-weight:600;text-transform:uppercase;letter-spacing:.5px;flex-shrink:0}
.lever-slider{flex:1;min-width:0}
.lever-val{width:75px;text-align:right;font-size:11px;color:var(--text);font-weight:600;flex-shrink:0}
.lever-toggle{display:flex;align-items:center;gap:8px;padding:6px 10px;background:rgba(0,0,0,.12);border:1px solid var(--border);border-radius:6px;margin-bottom:6px;cursor:pointer;font-size:11px;color:var(--text)}
.lever-toggle input[type="checkbox"]{accent-color:var(--accent);width:14px;height:14px;cursor:pointer}
.lever-toggle .lt-note{color:var(--dim);font-size:9px;margin-left:auto}
.nego-actions{display:flex;gap:8px;margin-top:8px;align-items:stretch}
.nego-actions .nego-btn{flex:1;min-width:0;width:auto;margin:0;display:flex;align-items:center;justify-content:center;text-align:center;line-height:1.25}
.nego-btn{padding:8px 14px;border-radius:6px;cursor:pointer;font-size:11px;font-weight:600;border:none}
.nego-btn-primary{background:var(--accent);color:#000}
.nego-btn-primary:hover{opacity:.9}
.nego-btn-danger{background:none;border:1px solid var(--red);color:var(--red)}
.nego-btn-danger:hover{background:var(--red);color:#fff}
.nego-tone{font-size:9px;color:var(--dim);margin-top:5px;line-height:1.35;font-weight:500}
.nego-slider{-webkit-appearance:none;width:100%;height:4px;background:var(--border);border-radius:2px;outline:none;margin:6px 0}
.nego-slider::-webkit-slider-thumb{-webkit-appearance:none;width:16px;height:16px;background:var(--accent);border-radius:50%;cursor:pointer}
#gameover{position:fixed;inset:0;background:rgba(0,0,0,.85);display:flex;align-items:center;justify-content:center;z-index:200}
#gameover .box{background:var(--panel-solid);border:1px solid var(--red);padding:30px;max-width:400px;text-align:center;border-radius:12px}
#gameover h2{color:var(--red);font-size:22px;margin-bottom:12px}
#gameover p{color:var(--text);margin-bottom:16px;line-height:1.6;font-size:12px}
#gameover button{width:auto;padding:10px 28px;margin:0 auto;display:block;background:var(--accent);color:#000;font-weight:700;border-radius:6px}