:root{
  --bg:#f4f5f7; --panel:#ffffff; --panel2:#f7f8fa; --line:#e3e6ea; --line2:#cfd4da;
  --text:#1b2027; --muted:#6b7480; --accent:#0a66c2; --accent-soft:#e8f0fa;
  --ok:#1a8f4f; --ok-soft:#e6f4ec; --warn:#b86e00; --warn-soft:#fff3e0; --bad:#d13438; --bad-soft:#fde8e8; --arm:#d9541e;
  --font:"Inter",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif; --mono:"JetBrains Mono",ui-monospace,Menlo,Consolas,monospace;
  --radius:10px;
}
*{box-sizing:border-box}
html,body{margin:0;height:100%;background:var(--bg);color:var(--text);font:13.5px/1.4 var(--font);overscroll-behavior:none;-webkit-font-smoothing:antialiased}
button{font:inherit;font-weight:500;color:var(--text);background:var(--panel);border:1px solid var(--line2);border-radius:8px;padding:8px 12px;cursor:pointer;touch-action:manipulation;transition:background .12s,border-color .12s}
button:hover{background:var(--panel2);border-color:#b8bfc7}
button:active{transform:translateY(1px)}
button.primary{background:var(--accent);border-color:var(--accent);color:#fff}
button.primary:hover{background:#0958a8}
button.rtl{border-color:var(--warn);color:var(--warn)}
button.rtl:hover{background:var(--warn-soft)}
button.arm{border-color:var(--arm);color:var(--arm)}
button.arm:hover{background:#fdeee6}
button.arm.confirm{background:var(--arm);color:#fff;animation:blink .5s infinite alternate}
button.kill{border-color:var(--bad);color:var(--bad);width:100%;margin-top:10px;background:#fff}
button.kill:hover{background:var(--bad-soft)}
button.kill.holding{background:var(--bad);color:#fff}
button.sm{padding:5px 10px;font-size:12px}
button.big{padding:13px 6px;font-weight:600}
button.big small{display:block;font-weight:400;color:var(--muted);font-size:11px;margin-top:2px}
button.primary.big small{color:rgba(255,255,255,.8)}
button.toggle.active{background:var(--accent-soft);border-color:var(--accent);color:var(--accent)}
button:disabled{opacity:.4;cursor:not-allowed}
@keyframes blink{from{opacity:1}to{opacity:.6}}
input,select{font:inherit;color:var(--text);background:#fff;border:1px solid var(--line2);border-radius:7px;padding:5px 8px}
input:focus,select:focus{outline:2px solid var(--accent-soft);border-color:var(--accent)}
input[type=number]{width:64px}
input[type=range]{width:110px;vertical-align:middle;accent-color:var(--accent)}
input[type=checkbox]{accent-color:var(--accent)}
label{display:inline-flex;align-items:center;gap:6px;color:var(--muted);font-size:12px}
.muted{color:var(--muted);font-weight:400;font-size:12px}
.hidden{display:none!important}
h3{margin:0 0 10px;font-size:11px;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);font-weight:600;display:flex;justify-content:space-between;align-items:center}
.row{display:flex;flex-wrap:wrap;gap:10px 14px;align-items:center;margin-top:10px}
.row.end{justify-content:flex-end}

/* top bar */
.topbar{display:flex;align-items:center;gap:14px;flex-wrap:wrap;min-height:52px;padding:0 16px;background:var(--panel);border-bottom:1px solid var(--line);height:52px;position:sticky;top:0;z-index:20}
.brand{display:flex;align-items:center;gap:9px;font-weight:500;white-space:nowrap;font-size:14px}
.brand img{width:24px;height:24px;border-radius:6px}
.brand b{font-weight:600;color:var(--accent)}
.drone-pick select{font-family:var(--mono);font-size:12px;padding:4px 8px}
.pills{display:flex;gap:6px;flex-wrap:wrap}
.pill{font:500 11px var(--font);padding:4px 9px;border-radius:999px;border:1px solid var(--line);background:var(--panel2);color:var(--muted)}
.pill[data-state=on]{color:var(--ok);background:var(--ok-soft);border-color:#bfe3cd}
.pill[data-state=warn]{color:var(--warn);background:var(--warn-soft);border-color:#f3d9a8}
.pill.mode{color:var(--accent);background:var(--accent-soft);border-color:#c6d9f0;font-family:var(--mono)}
.pill.armed[data-state=on]{color:#fff;background:var(--bad);border-color:var(--bad)}
.stats{display:flex;gap:16px;margin-left:auto;font-size:12px;white-space:nowrap}
.stats span{display:flex;flex-direction:column;line-height:1.15}
.stats i{font-style:normal;color:var(--muted);font-size:10px;text-transform:uppercase;letter-spacing:.06em}
.stats b{font-weight:500;font-family:var(--mono)}
.stats b.warn{color:var(--warn)} .stats b.bad{color:var(--bad)}
.user{display:flex;align-items:center;gap:8px}
.icon-btn{padding:3px 10px;font-size:16px;line-height:1.2}

/* layout */
.layout{display:grid;gap:12px;padding:12px;grid-template-columns:1.4fr 1fr 340px;grid-template-rows:minmax(360px,52vh) minmax(220px,auto);grid-template-areas:"video map controls" "mission payload log"}
.panel{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:14px;min-width:0;overflow:hidden;position:relative}
.video-panel{grid-area:video;padding:0;background:#0d1117}
.map-panel{grid-area:map;padding:0}
.controls{grid-area:controls}
.mission{grid-area:mission}
.payload{grid-area:payload}
.log{grid-area:log;display:flex;flex-direction:column}

/* video */
#video{width:100%;height:100%;object-fit:contain;display:block;background:#0d1117}
#hud{position:absolute;inset:0;width:100%;height:100%;pointer-events:none}
.video-overlay-top{position:absolute;top:10px;left:12px;display:flex;gap:8px;font:500 11px var(--mono);z-index:2}
.video-overlay-top span{background:rgba(255,255,255,.9);padding:3px 8px;border-radius:5px;color:var(--text)}
#vid-offline{color:var(--bad)}
.video-tools{position:absolute;top:10px;right:10px;display:flex;gap:4px}
.video-tools button{padding:3px 9px;font-size:11px;background:rgba(255,255,255,.9);border-color:transparent}
.video-tools button.active{color:var(--accent);border-color:var(--accent)}
.sticks{position:absolute;bottom:0;left:0;right:0;display:flex;justify-content:space-between;padding:14px 18px 14px;pointer-events:none}
.stick{width:140px;height:140px;position:relative;pointer-events:auto;border-radius:50%;background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.16)}
.stick label{position:absolute;top:100%;margin-top:-22px;left:0;right:0;text-align:center;font:500 10px var(--font);color:rgba(255,255,255,.75);letter-spacing:.06em;justify-content:center;pointer-events:none}
.stick .nipple .back{opacity:.35!important}.stick .nipple .front{opacity:.6!important}

/* map */
#map{width:100%;height:100%;background:#eef0f2}
.map-tools{position:absolute;top:10px;right:10px;display:flex;gap:4px;z-index:500}
.map-tools button{padding:4px 10px;font-size:11px;background:rgba(255,255,255,.95);box-shadow:0 1px 2px rgba(0,0,0,.08)}
.map-hint{position:absolute;bottom:8px;left:10px;z-index:500;font:11px var(--font);color:var(--muted);background:rgba(255,255,255,.9);padding:2px 8px;border-radius:5px}
.leaflet-container{font:inherit}
.drone-icon svg{filter:drop-shadow(0 1px 2px rgba(0,0,0,.4))}
.wp-icon{background:var(--accent);color:#fff;border-radius:50%;width:22px;height:22px;display:flex;align-items:center;justify-content:center;font:600 11px var(--mono);border:2px solid #fff;box-shadow:0 1px 3px rgba(0,0,0,.3)}
.home-icon{background:var(--ok);color:#fff;border-radius:5px;width:20px;height:20px;display:flex;align-items:center;justify-content:center;font:600 11px var(--mono);border:2px solid #fff}

/* controls */
.btn-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}
.wp-list{margin:0;padding-left:20px;max-height:120px;overflow:auto;font:12px var(--mono)}
.wp-list li{display:flex;justify-content:space-between;gap:10px;padding:4px 0;border-bottom:1px solid var(--line);white-space:nowrap}
.wp-list li button{padding:0 6px;font-size:11px;border-color:transparent}
.telemetry-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(140px,1fr));gap:6px 16px;width:100%;font:11px var(--mono);margin-top:12px}
.telemetry-grid div{display:flex;justify-content:space-between;gap:8px;border-bottom:1px solid var(--line);padding-bottom:3px;white-space:nowrap}
.telemetry-grid i{font-style:normal;color:var(--muted);font-family:var(--font)}

/* log */
#log{flex:1;overflow:auto;font:12px var(--mono);min-height:120px}
#log div{padding:3px 0;border-bottom:1px solid var(--line);display:flex;gap:10px}
#log time{color:var(--muted);flex:none}
#log .s0,#log .s1,#log .s2{color:var(--bad)} #log .s3,#log .s4{color:var(--warn)} #log .ok{color:var(--ok)} #log .err{color:var(--bad)}

/* viewer role: read-only */
body.viewer .controls,body.viewer .sticks,body.viewer .mission .row,body.viewer .payload .row:not(.telemetry-grid),body.viewer .video-tools [data-cam]{pointer-events:none;opacity:.45}
body.viewer .controls::after{content:"View-only account";position:absolute;top:14px;right:14px;font-size:11px;color:var(--muted)}

/* dialog */
dialog{background:var(--panel);color:var(--text);border:1px solid var(--line);border-radius:14px;padding:22px;width:min(92vw,400px);box-shadow:0 20px 60px rgba(0,0,0,.15)}
dialog::backdrop{background:rgba(20,24,30,.45)}
dialog label{display:flex;flex-direction:column;align-items:stretch;gap:5px;margin-bottom:12px}
dialog input{width:100%;padding:8px 10px}
dialog details{margin:6px 0 4px}
dialog summary{cursor:pointer;margin-bottom:8px}
.dialog-brand{display:flex;align-items:center;gap:12px;margin-bottom:18px}
.dialog-brand img{width:36px;height:36px;border-radius:9px}
.dialog-brand div{display:flex;flex-direction:column}
.error{color:var(--bad);font-size:12px;min-height:16px;margin:0 0 6px}

/* responsive */
@media (max-width:1100px){
  .layout{grid-template-columns:1fr 1fr;grid-template-rows:minmax(300px,48vh) auto auto auto;grid-template-areas:"video video" "map controls" "mission payload" "log log"}
  .stats{gap:12px}
}
@media (max-width:720px){
  .topbar{flex-wrap:wrap;height:auto;gap:8px 12px;padding:8px 12px}
  .stats{margin-left:0;gap:12px}
  .layout{grid-template-columns:1fr;grid-template-rows:auto;grid-template-areas:"video" "controls" "map" "mission" "payload" "log";padding:8px}
  .video-panel{height:64vw;min-height:300px}
  .map-panel{height:50vh}
  .stick{width:120px;height:120px}
}

/* geofence */
.pill.breach{color:#fff;background:var(--bad);border-color:var(--bad);animation:blink .6s infinite alternate}
button.toggle.fence.active{background:var(--bad-soft);border-color:var(--bad);color:var(--bad)}
h3.sub{margin-top:16px;padding-top:12px;border-top:1px solid var(--line)}
.fence-vertex{background:#fff;border:2px solid var(--bad);border-radius:50%;width:14px;height:14px;box-shadow:0 1px 3px rgba(0,0,0,.3);cursor:pointer}
.fence-vertex.first{background:var(--bad)}
h3{flex-wrap:wrap;gap:4px 10px}
h3 .muted{text-transform:none;letter-spacing:0;font-weight:400;font-family:var(--mono);font-size:11px}
#fence-hint{flex-basis:100%}

/* recording + flights */
#vid-rec.rec{color:#fff;background:var(--bad);animation:blink .8s infinite alternate}
.video-tools button.recording{color:#fff;background:var(--bad);border-color:var(--bad)}
dialog.wide{width:min(96vw,1000px);max-height:92vh;padding:18px 20px}
.dialog-head{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:6px}
.dialog-head .dialog-brand{margin-bottom:8px}
.flights-body{display:grid;grid-template-columns:1fr 1.1fr;gap:18px;max-height:calc(92vh - 90px);overflow:hidden}
.flights-list{overflow:auto;min-width:0}
#flights-table{border-collapse:collapse;width:100%;font-size:12px}
#flights-table th{position:sticky;top:0;background:var(--panel);text-align:left;font-weight:600;color:var(--muted);font-size:11px;letter-spacing:.04em;padding:6px 8px;border-bottom:1px solid var(--line)}
#flights-table td{padding:7px 8px;border-bottom:1px solid var(--line);white-space:nowrap;font-family:var(--mono)}
#flights-table tbody tr{cursor:pointer}
#flights-table tbody tr:hover{background:var(--panel2)}
#flights-table tbody tr.active{background:var(--accent-soft)}
#flights-table .live{color:var(--bad);font-weight:600}
.flight-detail{overflow:auto;min-width:0}
#flight-video{width:100%;background:#0d1117;border-radius:8px;max-height:280px}
.flight-events{max-height:180px;overflow:auto;font:11px var(--mono);border:1px solid var(--line);border-radius:6px;padding:6px 8px}
.flight-events div{padding:2px 0;border-bottom:1px solid var(--line);display:flex;gap:8px}
.flight-events time{color:var(--muted);flex:none}
.flight-events .u{color:var(--accent);flex:none}
a.btn{display:inline-block;text-decoration:none;color:var(--text);background:var(--panel);border:1px solid var(--line2);border-radius:8px;padding:5px 10px;font-size:12px;font-weight:500}
a.btn:hover{background:var(--panel2)}
a.btn.disabled{opacity:.4;pointer-events:none}
button.danger{border-color:var(--bad);color:var(--bad)}
button.danger:hover{background:var(--bad-soft)}
@media (max-width:820px){.flights-body{grid-template-columns:1fr;max-height:none}dialog.wide{max-height:none}.flights-list{max-height:40vh}}
#flight-stats{grid-template-columns:repeat(auto-fill,minmax(200px,1fr));margin:10px 0 4px}
#flight-stats span{white-space:normal;text-align:right}