/* ============================================================================
   AIR·SIM — air-traffic-control radar aesthetic
   Dark instrument panel · phosphor green + amber · glass HUD · radar sweep
   ========================================================================== */

:root {
  --bg: #05090b;
  --bg-2: #070d10;
  --grid: rgba(64, 224, 190, 0.05);

  --panel: rgba(9, 17, 20, 0.82);
  --panel-solid: #0a1216;
  --panel-brd: rgba(72, 233, 196, 0.16);
  --panel-brd-strong: rgba(72, 233, 196, 0.34);

  --phos: #35f0c0;        /* primary phosphor */
  --phos-dim: #1e8c74;
  --amber: #ffb648;
  --red: #ff4d5e;
  --blue: #6aa9ff;
  --violet: #b98cff;

  --ink: #d7f6ee;
  --ink-dim: #7fa9a1;
  --ink-faint: #4d6b66;

  --shadow: 0 18px 50px -18px rgba(0, 0, 0, 0.9);
  --glow: 0 0 22px -4px var(--phos);

  --ui: "Chakra Petch", system-ui, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, monospace;

  --hud-h: 74px;
  --panel-w: 336px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  height: 100%;
  overflow: hidden;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--ui);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  user-select: none;
}

.mono { font-family: var(--mono); font-variant-numeric: tabular-nums; }
.dim { color: var(--ink-dim); }

/* ---- Map ---------------------------------------------------------------- */
#map {
  position: fixed;
  inset: 0;
  background: var(--bg);
  z-index: 1;
}

/* faint tactical grid over the whole viewport */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 2;
  pointer-events: none;
  background-image:
    linear-gradient(var(--grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid) 1px, transparent 1px);
  background-size: 46px 46px;
  mask-image: radial-gradient(ellipse 120% 90% at 50% 40%, #000 55%, transparent 100%);
}

/* vignette to sink the edges */
body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 3;
  pointer-events: none;
  box-shadow: inset 0 0 220px 40px rgba(0, 0, 0, 0.72);
}

/* subtle animated scanlines */
.scan-noise {
  position: fixed;
  inset: 0;
  z-index: 4;
  pointer-events: none;
  opacity: 0.35;
  background: repeating-linear-gradient(
    0deg,
    rgba(0, 0, 0, 0) 0px,
    rgba(0, 0, 0, 0) 2px,
    rgba(0, 0, 0, 0.16) 3px
  );
  mix-blend-mode: multiply;
}

/* ---- Radar sweep (positioned over the town by map.js) ------------------ */
.sweep {
  position: fixed;
  z-index: 5;
  pointer-events: none;
  border-radius: 50%;
  transform: translate(-50%, -50%);
  opacity: 0.5;
  background: conic-gradient(
    from 0deg,
    transparent 0deg,
    transparent 300deg,
    rgba(53, 240, 192, 0.02) 330deg,
    rgba(53, 240, 192, 0.16) 356deg,
    rgba(53, 240, 192, 0.42) 360deg
  );
  mask-image: radial-gradient(circle, #000 0%, #000 98%, transparent 100%);
  animation: sweep-spin 5.5s linear infinite;
  display: none;
}
.sweep.on { display: block; }
@keyframes sweep-spin { to { transform: translate(-50%, -50%) rotate(360deg); } }

/* ---- Top HUD ------------------------------------------------------------ */
.hud {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--hud-h);
  z-index: 500;
  display: flex;
  align-items: center;
  gap: 22px;
  padding: 0 18px;
  background: linear-gradient(180deg, rgba(5, 9, 11, 0.95) 0%, rgba(5, 9, 11, 0.55) 100%);
  border-bottom: 1px solid var(--panel-brd);
  backdrop-filter: blur(8px);
}

.brand { display: flex; align-items: center; gap: 12px; flex: 0 0 auto; }
.brand-mark {
  font-size: 24px;
  color: var(--phos);
  filter: drop-shadow(0 0 10px var(--phos));
  transform: rotate(-45deg);
}
.brand-text h1 {
  margin: 0;
  font-size: 22px;
  font-weight: 700;
  letter-spacing: 3px;
  line-height: 1;
  color: var(--ink);
}
.brand-text h1 span { color: var(--phos); }
.brand-text p {
  margin: 3px 0 0;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 3px;
  color: var(--phos);
  text-transform: uppercase;
}

.stats { display: flex; gap: 10px; flex: 1 1 auto; overflow: hidden; }
.stat {
  flex: 0 0 auto;
  min-width: 92px;
  padding: 8px 12px;
  border: 1px solid var(--panel-brd);
  border-radius: 8px;
  background: rgba(10, 18, 22, 0.5);
}
.stat .k {
  display: block;
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 2px;
  color: var(--ink-faint);
  text-transform: uppercase;
}
.stat .v {
  display: block;
  margin-top: 3px;
  font-family: var(--mono);
  font-weight: 700;
  font-size: 19px;
  line-height: 1;
  color: var(--phos);
}
.stat .v small { font-size: 11px; color: var(--ink-dim); font-weight: 500; }
.stat.warn .v { color: var(--amber); }

.status { flex: 0 0 auto; display: flex; flex-direction: column; gap: 8px; align-items: flex-end; }
.status-row { display: flex; align-items: center; gap: 8px; font-size: 11px; }
.dot {
  width: 9px; height: 9px; border-radius: 50%;
  background: var(--ink-faint);
  box-shadow: 0 0 0 0 rgba(53, 240, 192, 0.5);
}
.dot.live { background: var(--phos); animation: pulse-dot 2s infinite; }
.dot.stale { background: var(--amber); }
.dot.down { background: var(--red); }
@keyframes pulse-dot {
  0% { box-shadow: 0 0 0 0 rgba(53, 240, 192, 0.5); }
  70% { box-shadow: 0 0 0 7px rgba(53, 240, 192, 0); }
  100% { box-shadow: 0 0 0 0 rgba(53, 240, 192, 0); }
}
.refresh { color: var(--ink-dim); }
.refresh-ring { position: relative; width: 34px; height: 34px; display: inline-grid; place-items: center; }
.refresh-ring svg { position: absolute; inset: 0; transform: rotate(-90deg); }
.refresh-ring circle { fill: none; stroke-width: 2.5; }
.ring-bg { stroke: rgba(72, 233, 196, 0.12); }
.ring-fg { stroke: var(--phos); stroke-linecap: round; stroke-dasharray: 97.4; stroke-dashoffset: 0; transition: stroke-dashoffset 0.25s linear; }
.refresh-ring b { font-family: var(--mono); font-size: 12px; color: var(--ink); }

/* ---- Contacts panel ----------------------------------------------------- */
.panel {
  position: fixed;
  top: calc(var(--hud-h) + 12px);
  left: 12px;
  bottom: 12px;
  width: var(--panel-w);
  z-index: 450;
  display: flex;
  flex-direction: column;
  background: var(--panel);
  border: 1px solid var(--panel-brd);
  border-radius: 14px;
  box-shadow: var(--shadow);
  backdrop-filter: blur(14px);
  overflow: hidden;
  transition: transform 0.32s cubic-bezier(0.22, 1, 0.36, 1), opacity 0.32s;
}
.panel.hidden { transform: translateX(calc(-100% - 24px)); opacity: 0; pointer-events: none; }

.panel-head { padding: 14px 14px 10px; border-bottom: 1px solid var(--panel-brd); }
.panel-title { display: flex; justify-content: space-between; align-items: baseline; margin-bottom: 10px; }
.panel-title span { font-weight: 700; letter-spacing: 3px; font-size: 13px; color: var(--ink); }
.panel-title b { font-size: 15px; color: var(--phos); }

.filter {
  width: 100%;
  padding: 9px 11px;
  font-size: 12px;
  color: var(--ink);
  background: rgba(3, 7, 8, 0.6);
  border: 1px solid var(--panel-brd);
  border-radius: 8px;
  outline: none;
}
.filter::placeholder { color: var(--ink-faint); }
.filter:focus { border-color: var(--panel-brd-strong); box-shadow: 0 0 0 2px rgba(53, 240, 192, 0.1); }

.sorts { display: flex; gap: 6px; margin-top: 9px; }
.sorts button {
  flex: 1;
  padding: 6px 4px;
  font-family: var(--mono);
  font-size: 9.5px;
  letter-spacing: 1px;
  color: var(--ink-dim);
  background: rgba(3, 7, 8, 0.4);
  border: 1px solid var(--panel-brd);
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.15s;
}
.sorts button:hover { color: var(--ink); border-color: var(--panel-brd-strong); }
.sorts button.active { color: var(--bg); background: var(--phos); border-color: var(--phos); font-weight: 700; }

.ac-list { list-style: none; margin: 0; padding: 6px; overflow-y: auto; flex: 1; }
.list-empty { padding: 26px 16px; text-align: center; color: var(--ink-faint); font-family: var(--mono); font-size: 11px; display: none; }
.panel.empty .list-empty { display: block; }

.ac-row {
  display: grid;
  grid-template-columns: 26px 1fr auto;
  align-items: center;
  gap: 10px;
  padding: 9px 10px;
  border-radius: 9px;
  cursor: pointer;
  border: 1px solid transparent;
  transition: background 0.12s, border-color 0.12s;
}
.ac-row:hover { background: rgba(53, 240, 192, 0.06); }
.ac-row.selected { background: rgba(53, 240, 192, 0.12); border-color: var(--panel-brd-strong); }
.ac-row.emergency { border-color: rgba(255, 77, 94, 0.5); background: rgba(255, 77, 94, 0.08); }

.ac-row .glyph {
  width: 26px; height: 26px;
  display: grid; place-items: center;
}
.ac-row .glyph svg { width: 20px; height: 20px; }

.ac-id { min-width: 0; }
.ac-id .call { display: block; font-family: var(--mono); font-weight: 700; font-size: 13px; color: var(--ink); letter-spacing: 0.5px; }
.ac-id .sub { display: block; font-family: var(--mono); font-size: 10px; color: var(--ink-dim); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.ac-metrics { text-align: right; font-family: var(--mono); }
.ac-metrics .alt { display: block; font-size: 12.5px; font-weight: 500; color: var(--ink); line-height: 1.25; }
.ac-metrics .dist { display: block; font-size: 10px; color: var(--ink-dim); line-height: 1.2; }
.ac-row.ground .ac-metrics .alt { color: var(--ink-faint); }
.tag-mil { color: var(--amber); }
.tag-emg { color: var(--red); animation: blink 1s steps(2) infinite; }
@keyframes blink { 50% { opacity: 0.3; } }

/* ---- Detail card -------------------------------------------------------- */
.detail {
  position: fixed;
  top: calc(var(--hud-h) + 12px);
  right: 12px;
  width: 300px;
  z-index: 460;
  background: var(--panel);
  border: 1px solid var(--panel-brd-strong);
  border-radius: 14px;
  box-shadow: var(--shadow), var(--glow);
  backdrop-filter: blur(14px);
  overflow: hidden;
  animation: card-in 0.28s cubic-bezier(0.22, 1, 0.36, 1);
}
@keyframes card-in { from { opacity: 0; transform: translateY(-8px) scale(0.98); } }

.detail-head { padding: 14px 16px; border-bottom: 1px solid var(--panel-brd); position: relative; overflow: hidden; }
.detail-head::before {
  content: ""; position: absolute; inset: 0;
  background: radial-gradient(120% 140% at 100% 0, rgba(53, 240, 192, 0.14), transparent 55%);
}
.detail-head .call { position: relative; font-family: var(--mono); font-weight: 700; font-size: 22px; letter-spacing: 1px; color: var(--phos); }
.detail-head .type { position: relative; margin-top: 2px; font-family: var(--mono); font-size: 11px; color: var(--ink-dim); }
.detail-close {
  position: absolute; top: 12px; right: 12px;
  width: 24px; height: 24px; border-radius: 6px;
  border: 1px solid var(--panel-brd); background: rgba(3, 7, 8, 0.5);
  color: var(--ink-dim); cursor: pointer; font-size: 14px; line-height: 1;
}
.detail-close:hover { color: var(--ink); border-color: var(--panel-brd-strong); }

.detail-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1px; background: var(--panel-brd); }
.detail-cell { padding: 10px 14px; background: var(--panel-solid); }
.detail-cell .k { font-family: var(--mono); font-size: 9px; letter-spacing: 1.5px; color: var(--ink-faint); text-transform: uppercase; }
.detail-cell .v { margin-top: 3px; font-family: var(--mono); font-size: 15px; font-weight: 500; color: var(--ink); }
.detail-cell .v small { font-size: 10px; color: var(--ink-dim); }
.detail-cell.full { grid-column: 1 / -1; }

.detail-foot { display: flex; gap: 8px; padding: 12px 14px; }
.detail-foot a {
  flex: 1; text-align: center; padding: 8px;
  font-family: var(--mono); font-size: 10px; letter-spacing: 1px; text-transform: uppercase;
  color: var(--phos); text-decoration: none;
  border: 1px solid var(--panel-brd-strong); border-radius: 7px;
  transition: all 0.15s;
}
.detail-foot a:hover { background: var(--phos); color: var(--bg); }

.compass { display: grid; place-items: center; padding: 8px 0; }
.compass svg { width: 74px; height: 74px; }

/* ---- Legend ------------------------------------------------------------- */
.legend {
  position: fixed;
  left: 12px; bottom: 12px;
  z-index: 440;
  padding: 8px 12px 10px;
  background: var(--panel);
  border: 1px solid var(--panel-brd);
  border-radius: 10px;
  backdrop-filter: blur(10px);
  transition: opacity 0.3s, transform 0.3s;
}
.panel:not(.hidden) ~ .legend { transform: translateX(calc(var(--panel-w) - 0px)); }
.legend-label { display: block; font-size: 9px; letter-spacing: 2px; color: var(--ink-faint); margin-bottom: 5px; }
.legend-bar {
  width: 200px; height: 8px; border-radius: 4px;
  background: linear-gradient(90deg, #ff9d3c 0%, #ffe14a 18%, #46f08a 40%, #35f0c0 55%, #6aa9ff 78%, #b98cff 100%);
}
.legend-ticks { display: flex; justify-content: space-between; width: 200px; margin-top: 4px; font-size: 8.5px; color: var(--ink-faint); }

/* ---- Controls drawer ---------------------------------------------------- */
.controls {
  position: fixed;
  top: calc(var(--hud-h) + 12px);
  right: 12px;
  width: 320px;
  max-height: calc(100vh - var(--hud-h) - 84px);
  overflow-y: auto;
  z-index: 700;
  padding: 16px;
  background: var(--panel);
  border: 1px solid var(--panel-brd-strong);
  border-radius: 14px;
  box-shadow: var(--shadow);
  backdrop-filter: blur(16px);
  animation: card-in 0.24s ease;
}
.controls h2 { margin: 0 0 14px; font-size: 13px; letter-spacing: 3px; color: var(--ink); font-weight: 700; }
.ctrl { margin-bottom: 16px; }
.ctrl-label { display: flex; justify-content: space-between; font-family: var(--mono); font-size: 10px; letter-spacing: 1px; color: var(--ink-dim); text-transform: uppercase; margin-bottom: 7px; }
.ctrl-label b { color: var(--phos); }
.ctrl input[type="range"] { width: 100%; accent-color: var(--phos); }
.ctrl select, .ctrl input[type="text"], .ctrl input[type="number"] {
  width: 100%; padding: 8px 10px; font-family: var(--mono); font-size: 12px;
  color: var(--ink); background: rgba(3, 7, 8, 0.6);
  border: 1px solid var(--panel-brd); border-radius: 7px; outline: none;
}
.ctrl select:focus, .ctrl input:focus { border-color: var(--panel-brd-strong); }
.toggles { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.toggle {
  display: flex; align-items: center; gap: 8px; padding: 8px 10px;
  font-size: 11px; color: var(--ink-dim);
  border: 1px solid var(--panel-brd); border-radius: 8px; cursor: pointer;
  transition: all 0.15s;
}
.toggle:hover { border-color: var(--panel-brd-strong); }
.toggle input { accent-color: var(--phos); }
.toggle.on { color: var(--ink); border-color: var(--panel-brd-strong); background: rgba(53, 240, 192, 0.06); }
.ctrl-row { display: flex; gap: 8px; }
.ctrl-row > * { flex: 1; }
.btn-primary {
  width: 100%; padding: 9px; margin-top: 4px;
  font-family: var(--ui); font-weight: 600; font-size: 12px; letter-spacing: 1px;
  color: var(--bg); background: var(--phos); border: none; border-radius: 8px; cursor: pointer;
}
.btn-primary:hover { filter: brightness(1.08); }
.btn-ghost {
  padding: 8px; font-family: var(--mono); font-size: 11px;
  color: var(--ink-dim); background: transparent;
  border: 1px solid var(--panel-brd); border-radius: 8px; cursor: pointer;
}
.btn-ghost:hover { color: var(--ink); border-color: var(--panel-brd-strong); }
.ctrl-hint { font-family: var(--mono); font-size: 9.5px; color: var(--ink-faint); margin-top: 6px; line-height: 1.5; }

/* ---- Floating buttons --------------------------------------------------- */
.fabs { position: fixed; right: 14px; bottom: 14px; z-index: 480; display: flex; flex-direction: column; gap: 10px; }
.fab {
  width: 46px; height: 46px; border-radius: 12px;
  display: grid; place-items: center;
  font-size: 18px; color: var(--phos);
  background: var(--panel); border: 1px solid var(--panel-brd);
  box-shadow: var(--shadow); backdrop-filter: blur(10px);
  cursor: pointer; transition: all 0.15s;
}
.fab:hover { border-color: var(--panel-brd-strong); color: var(--ink); transform: translateY(-2px); }
.fab.active { background: var(--phos); color: var(--bg); border-color: var(--phos); }

/* ---- Aircraft markers (Leaflet divIcon) --------------------------------- */
.ac-marker {
  width: 30px; height: 30px;
  position: relative;
}
.ac-marker .plane {
  width: 100%; height: 100%;
  transform: rotate(var(--rot, 0deg));
  transition: transform 0.9s linear;
  color: var(--c, var(--phos));
  filter: drop-shadow(0 0 5px var(--c, var(--phos)));
  will-change: transform;
}
.ac-marker .plane svg { width: 100%; height: 100%; display: block; }
.ac-marker .plane path { fill: currentColor; stroke: rgba(0,0,0,0.55); stroke-width: 0.6; }
.ac-marker .label {
  position: absolute;
  left: 32px; top: 50%;
  transform: translateY(-50%);
  font-family: var(--mono);
  font-size: 10px;
  line-height: 1.2;
  white-space: nowrap;
  color: var(--ink);
  text-shadow: 0 0 4px #000, 0 0 8px #000;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.2s;
}
.ac-marker .label b { color: var(--c, var(--phos)); }
.show-labels .ac-marker .label { opacity: 0.92; }
.ac-marker.ground .plane { color: var(--ink-faint) !important; filter: none; opacity: 0.75; }
.ac-marker.dim .plane { opacity: 0.28; filter: none; }

.ac-marker.hover .plane { transform: rotate(var(--rot, 0deg)) scale(1.35); filter: drop-shadow(0 0 9px var(--c)); }
.ac-marker.selected .plane { filter: drop-shadow(0 0 10px var(--c)); }
.ac-marker.selected::before {
  content: ""; position: absolute; inset: -8px;
  border: 1.5px solid var(--c, var(--phos)); border-radius: 50%;
  animation: sel-pulse 1.6s ease-out infinite;
}
@keyframes sel-pulse {
  0% { transform: scale(0.7); opacity: 0.9; }
  100% { transform: scale(1.6); opacity: 0; }
}
.ac-marker.emergency .plane { color: var(--red) !important; filter: drop-shadow(0 0 8px var(--red)); }
.ac-marker.emergency .label b { color: var(--red); }

/* town center marker — amber crosshair with a soft pulse ring */
.home-marker { position: relative; width: 0; height: 0; }
.home-marker::before, .home-marker::after {
  content: ""; position: absolute; background: var(--amber);
  box-shadow: 0 0 6px var(--amber);
}
.home-marker::before { left: -0.75px; top: -14px; width: 1.5px; height: 28px; }
.home-marker::after { top: -0.75px; left: -14px; height: 1.5px; width: 28px; }
.home-label {
  position: absolute; left: 12px; top: 6px; white-space: nowrap;
  font-family: var(--mono); font-size: 10px; letter-spacing: 2px; font-style: normal;
  color: var(--amber); text-transform: uppercase; text-shadow: 0 0 6px #000, 0 0 3px #000;
}
.home-icon { overflow: visible; }
.home-icon::after {
  content: ""; position: absolute; left: -13px; top: -13px;
  width: 26px; height: 26px; border-radius: 50%;
  border: 1px solid rgba(255, 182, 72, 0.5);
  animation: home-ping 3s ease-out infinite;
}
@keyframes home-ping {
  0% { transform: scale(0.5); opacity: 0.9; }
  100% { transform: scale(2.6); opacity: 0; }
}

/* ---- Leaflet overrides -------------------------------------------------- */
.leaflet-container { background: var(--bg); font-family: var(--mono); outline: none; }
.leaflet-tile { filter: saturate(0.6) brightness(0.82) contrast(1.05); }
.leaflet-control-zoom { border: none !important; margin: 14px !important; }
.leaflet-control-zoom a {
  background: var(--panel) !important;
  color: var(--phos) !important;
  border: 1px solid var(--panel-brd) !important;
  backdrop-filter: blur(8px);
  width: 32px; height: 32px; line-height: 30px;
}
.leaflet-control-zoom a:first-child { border-radius: 9px 9px 0 0 !important; }
.leaflet-control-zoom a:last-child { border-radius: 0 0 9px 9px !important; }
.leaflet-control-zoom a:hover { background: var(--phos) !important; color: var(--bg) !important; }
.leaflet-control-attribution {
  background: rgba(5, 9, 11, 0.7) !important;
  color: var(--ink-faint) !important;
  font-size: 9px !important;
  backdrop-filter: blur(6px);
}
.leaflet-control-attribution a { color: var(--ink-dim) !important; }
.range-ring { stroke: rgba(53, 240, 192, 0.22); stroke-width: 1; fill: none; stroke-dasharray: 2 6; }
.range-ring-outer { stroke: rgba(53, 240, 192, 0.4); stroke-width: 1.2; fill: rgba(53, 240, 192, 0.02); }
.trail { stroke-linecap: round; }

/* ---- Scrollbars --------------------------------------------------------- */
::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: rgba(53, 240, 192, 0.18); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: rgba(53, 240, 192, 0.34); }

/* ---- Responsive --------------------------------------------------------- */
@media (max-width: 900px) {
  :root { --panel-w: 300px; }
  .stats { display: none; }
  .brand-text h1 { font-size: 18px; }
}
@media (max-width: 640px) {
  :root { --hud-h: 60px; --panel-w: calc(100vw - 24px); }
  .detail { width: calc(100vw - 24px); right: 12px; }
  .controls { width: calc(100vw - 24px); }
  .legend { display: none; }
  .panel:not(.hidden) ~ .legend { transform: none; }
}

@media (prefers-reduced-motion: reduce) {
  .sweep, .dot.live, .ac-marker.selected::before, .tag-emg, .home-icon::after { animation: none; }
  .ac-marker .plane { transition: none; }
}