:root {
  --bg: #0b0f1a;
  --panel: rgba(18,22,34,.78);
  --panel-border: rgba(255,255,255,.08);
  --panel-hover: rgba(255,255,255,.05);
  --text: #e8ecf5;
  --text-dim: #9aa3b8;
  --accent: #64d2ff;
  --accent-2: #ff6b9b;
  --danger: #ff5c7a;
  --radius: 14px;
  --shadow: 0 10px 40px rgba(0,0,0,.45), 0 2px 8px rgba(0,0,0,.3);
}
*, *::before, *::after { box-sizing: border-box }
html, body {
  margin: 0; padding: 0; height: 100%; overflow: hidden;
  background: var(--bg); color: var(--text);
  font-family: "DM Sans", system-ui, sans-serif;
  -webkit-font-smoothing: antialiased;
}
button { font-family: inherit; color: inherit; cursor: pointer }
input { font-family: inherit }

/* === Stage (full-screen pan/zoom wrapper) === */
#stage {
  position: fixed; inset: 0; overflow: hidden;
  background: var(--bg); touch-action: none;
}
#mapWrap {
  position: absolute; top: 0; left: 0;
  transform-origin: 0 0; will-change: transform;
}
#mapWrap svg { display: block }
#mapWrap svg text { pointer-events: none; user-select: none }

/* === Search === */
#searchWrap { position: fixed; top: 18px; left: 50%; transform: translateX(-50%); z-index: 20; width: min(560px, calc(100% - 32px)) }
#searchBar {
  display: flex; align-items: center; gap: 10px;
  background: var(--panel); backdrop-filter: blur(16px) saturate(140%);
  border: 1px solid var(--panel-border); border-radius: 999px;
  padding: 10px 14px 10px 18px; box-shadow: var(--shadow);
}
#searchBar svg { flex-shrink: 0; opacity: .75 }
#searchInput {
  flex: 1; background: transparent; border: 0; outline: 0;
  color: var(--text); font-size: 15px; font-weight: 500;
  letter-spacing: .01em; min-width: 0;
}
#searchInput::placeholder { color: var(--text-dim) }
.go-btn {
  background: var(--accent); color: #031021; border: 0; border-radius: 999px;
  padding: 8px 16px; font-weight: 700; font-size: 13px;
  letter-spacing: .04em; text-transform: uppercase; transition: transform .15s;
}
.go-btn:hover { transform: translateY(-1px) }
.go-btn:disabled { opacity: .5; cursor: wait }

#results {
  margin-top: 8px; background: var(--panel);
  backdrop-filter: blur(16px) saturate(140%);
  border: 1px solid var(--panel-border); border-radius: 14px;
  box-shadow: var(--shadow); overflow: hidden; max-height: 320px;
  overflow-y: auto; display: none;
}
#results.show { display: block; animation: fadeIn .18s ease }
.result-item {
  display: flex; justify-content: space-between; align-items: center;
  gap: 12px; padding: 12px 16px;
  border-bottom: 1px solid rgba(255,255,255,.05);
  cursor: pointer; transition: background .15s;
}
.result-item:last-child { border-bottom: 0 }
.result-item:hover { background: var(--panel-hover) }
.ri-name { font-weight: 600; font-size: 14px; color: var(--text) }
.ri-meta { font-size: 11px; color: var(--text-dim); font-family: "JetBrains Mono", monospace; margin-top: 2px }
.ri-codes { font-family: "JetBrains Mono", monospace; font-size: 12px; color: var(--accent); font-weight: 700; flex-shrink: 0 }

/* === Quick airports === */
#quickWrap {
  position: fixed; top: 72px; left: 50%; transform: translateX(-50%);
  z-index: 15; display: flex; flex-wrap: wrap; gap: 6px;
  justify-content: center; max-width: 720px; padding: 0 16px;
  pointer-events: none;
}
.quick {
  pointer-events: auto;
  background: var(--panel); backdrop-filter: blur(12px);
  border: 1px solid var(--panel-border); color: var(--text);
  border-radius: 999px; padding: 6px 12px; font-size: 11px;
  font-family: "JetBrains Mono", monospace; font-weight: 500;
  transition: all .15s;
}
.quick:hover { background: var(--accent); color: #031021; border-color: var(--accent) }

/* === Controls === */
#controls {
  position: fixed; right: 16px; top: 50%; transform: translateY(-50%);
  z-index: 15; width: 280px; max-height: calc(100vh - 40px);
  overflow-y: auto; background: var(--panel);
  backdrop-filter: blur(16px) saturate(140%);
  border: 1px solid var(--panel-border); border-radius: var(--radius);
  box-shadow: var(--shadow); padding: 18px;
  transition: transform .3s ease;
}
#controls.collapsed { transform: translateY(-50%) translateX(calc(100% + 20px)) }
#controls h3 {
  margin: 0 0 8px; font-size: 10px; letter-spacing: .18em;
  text-transform: uppercase; color: var(--text-dim); font-weight: 700;
}
.section { margin-bottom: 18px }
.section:last-child { margin-bottom: 0 }
.themes { display: grid; grid-template-columns: repeat(3,1fr); gap: 8px }
.theme-swatch {
  aspect-ratio: 1.4; border-radius: 10px; border: 2px solid transparent;
  cursor: pointer; position: relative; overflow: hidden; transition: transform .15s, border-color .15s;
}
.theme-swatch:hover { transform: translateY(-2px) }
.theme-swatch.active { border-color: var(--accent) }
.theme-swatch span {
  position: absolute; left: 0; right: 0; bottom: 0; font-size: 9px; font-weight: 700;
  text-align: center; padding: 3px 2px;
  background: rgba(0,0,0,.55); color: #fff; letter-spacing: .04em; text-transform: uppercase;
}
.theme-swatch .rw {
  position: absolute; left: 10%; right: 10%; top: 55%; height: 14%;
  transform: rotate(-20deg); transform-origin: center;
}

.toggle-row { display: flex; align-items: center; justify-content: space-between; padding: 6px 0; font-size: 13px }
.toggle-row label { color: var(--text); font-weight: 500 }
.sw {
  position: relative; width: 34px; height: 20px;
  background: rgba(255,255,255,.12); border-radius: 999px; cursor: pointer;
  transition: background .2s; flex-shrink: 0;
}
.sw::after {
  content: ""; position: absolute; top: 2px; left: 2px;
  width: 16px; height: 16px; background: #fff; border-radius: 50%;
  transition: transform .2s;
}
.sw.on { background: var(--accent) }
.sw.on::after { transform: translateX(14px) }

.slider-row { padding: 6px 0 }
.slider-row label { display: flex; justify-content: space-between; font-size: 12px; color: var(--text); margin-bottom: 4px }
.slider-row label span { color: var(--text-dim); font-family: "JetBrains Mono", monospace; font-size: 11px }
input[type=range] { width: 100%; -webkit-appearance: none; appearance: none; background: transparent; height: 18px }
input[type=range]::-webkit-slider-runnable-track { height: 3px; background: rgba(255,255,255,.12); border-radius: 2px }
input[type=range]::-webkit-slider-thumb { -webkit-appearance: none; width: 14px; height: 14px; border-radius: 50%; background: var(--accent); margin-top: -6px; border: 0; cursor: pointer; box-shadow: 0 2px 6px rgba(0,0,0,.4) }
input[type=range]::-moz-range-track { height: 3px; background: rgba(255,255,255,.12); border-radius: 2px }
input[type=range]::-moz-range-thumb { width: 14px; height: 14px; border-radius: 50%; background: var(--accent); border: 0; cursor: pointer }

/* === Info panel === */
#info {
  position: fixed; left: 16px; bottom: 16px; z-index: 15; max-width: 320px;
  background: var(--panel); backdrop-filter: blur(16px) saturate(140%);
  border: 1px solid var(--panel-border); border-radius: var(--radius);
  box-shadow: var(--shadow); padding: 14px 16px; display: none;
}
#info.show { display: block }
#info .name { font-size: 15px; font-weight: 700; letter-spacing: -.01em; margin-bottom: 2px }
#info .sub { font-size: 11px; color: var(--text-dim); font-family: "JetBrains Mono", monospace; margin-bottom: 10px }
#info .stats { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; font-size: 11px }
.stat .k { color: var(--text-dim); text-transform: uppercase; letter-spacing: .08em; font-size: 9px; font-weight: 700 }
.stat .v { color: var(--text); font-family: "JetBrains Mono", monospace; font-weight: 600 }

/* === Toolbar === */
#toolbar {
  position: fixed; left: 50%; bottom: 16px; transform: translateX(-50%);
  z-index: 15; display: flex; gap: 6px;
  background: var(--panel); backdrop-filter: blur(16px);
  border: 1px solid var(--panel-border); border-radius: 999px;
  padding: 6px; box-shadow: var(--shadow);
}
.tb-btn {
  background: transparent; border: 0; color: var(--text); padding: 8px 14px;
  border-radius: 999px; font-size: 12px; font-weight: 600;
  letter-spacing: .02em; display: flex; align-items: center; gap: 6px;
  transition: background .15s;
}
.tb-btn:hover { background: var(--panel-hover) }
.tb-btn.primary { background: var(--accent); color: #031021 }
.tb-btn.primary:hover { background: #8ee0ff }

/* === Tooltip === */
#tooltip {
  position: fixed; pointer-events: none;
  background: rgba(8,10,18,.92); border: 1px solid var(--panel-border);
  border-radius: 8px; padding: 8px 10px; font-size: 11px;
  font-family: "JetBrains Mono", monospace; color: var(--text);
  box-shadow: var(--shadow); max-width: 260px; z-index: 30;
  display: none; backdrop-filter: blur(8px);
}
#tooltip.show { display: block }
.tt-title { color: var(--accent); font-weight: 700; margin-bottom: 3px }
.tt-row { color: var(--text-dim) }
.tt-row b { color: var(--text); font-weight: 500 }

/* === Feature panel === */
#featurePanel {
  position: fixed; right: 16px; top: 16px; z-index: 18; width: 320px;
  max-height: 60vh; background: var(--panel); backdrop-filter: blur(16px);
  border: 1px solid var(--panel-border); border-radius: var(--radius);
  box-shadow: var(--shadow); padding: 16px; display: none; overflow-y: auto;
}
#featurePanel.show { display: block }
#featurePanel h4 { margin: 0 0 10px; font-size: 13px; display: flex; justify-content: space-between; align-items: center }
#featurePanel h4 button { background: transparent; border: 0; color: var(--text-dim); font-size: 18px; cursor: pointer; padding: 0 }
#featurePanel table { width: 100%; border-collapse: collapse; font-size: 11px; font-family: "JetBrains Mono", monospace }
#featurePanel td { padding: 4px 6px; border-bottom: 1px solid rgba(255,255,255,.05); vertical-align: top }
#featurePanel td:first-child { color: var(--text-dim); width: 40% }

/* === Preview modal === */
#preview {
  position: fixed; inset: 0; z-index: 60;
  background: rgba(5,7,14,.88); backdrop-filter: blur(10px);
  display: none; align-items: center; justify-content: center; padding: 30px;
}
#preview.show { display: flex; animation: fadeIn .25s ease }
.pv-card {
  background: var(--panel); border: 1px solid var(--panel-border);
  border-radius: 16px; box-shadow: var(--shadow);
  max-width: min(1100px,100%); max-height: 100%; width: 100%;
  display: flex; flex-direction: column; overflow: hidden;
}
.pv-head { display: flex; align-items: center; justify-content: space-between; padding: 14px 18px; border-bottom: 1px solid var(--panel-border) }
.pv-head h3 { margin: 0; font-size: 14px; font-weight: 700 }
.pv-tabs { display: flex; gap: 4px; background: rgba(255,255,255,.05); border-radius: 999px; padding: 3px }
.pv-tab { background: transparent; border: 0; color: var(--text-dim); padding: 6px 16px; border-radius: 999px; font-size: 12px; font-weight: 600; cursor: pointer; transition: all .15s }
.pv-tab.active { background: var(--accent); color: #031021 }
.pv-close { background: transparent; border: 0; color: var(--text-dim); font-size: 24px; cursor: pointer; padding: 0 4px; line-height: 1 }
.pv-body {
  flex: 1; overflow: auto; padding: 20px;
  background: repeating-conic-gradient(rgba(255,255,255,.02) 0% 25%, transparent 0% 50%) 0 0 / 20px 20px;
  display: flex; align-items: center; justify-content: center; min-height: 300px;
}
.pv-body img, .pv-body svg {
  max-width: 100%; max-height: 60vh; display: block;
  box-shadow: 0 10px 30px rgba(0,0,0,.4); border-radius: 4px;
}
.pv-foot { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 14px 18px; border-top: 1px solid var(--panel-border); flex-wrap: wrap }
.pv-meta { font-size: 11px; color: var(--text-dim); font-family: "JetBrains Mono", monospace }

/* === Loading === */
#loader {
  position: fixed; inset: 0; background: rgba(8,10,18,.7);
  backdrop-filter: blur(4px); z-index: 40;
  display: none; align-items: center; justify-content: center;
  flex-direction: column; gap: 18px;
}
#loader.show { display: flex }
.radar { width: 90px; height: 90px; position: relative }
.radar::before, .radar::after {
  content: ""; position: absolute; inset: 0; border-radius: 50%;
  border: 1px solid var(--accent); opacity: .25;
}
.radar::after { inset: 18px }
.radar .sweep {
  position: absolute; inset: 0; border-radius: 50%;
  background: conic-gradient(from 0deg, transparent 0deg, var(--accent) 60deg, transparent 70deg);
  mask: radial-gradient(circle, transparent 10%, black 11%);
  -webkit-mask: radial-gradient(circle, transparent 10%, black 11%);
  animation: spin 2s linear infinite; opacity: .7;
}
.radar .dot {
  position: absolute; top: 50%; left: 50%; width: 8px; height: 8px;
  background: var(--accent); border-radius: 50%; transform: translate(-50%,-50%);
  box-shadow: 0 0 12px var(--accent);
}
.loader-txt { font-size: 12px; color: var(--text-dim); letter-spacing: .1em; text-transform: uppercase; font-weight: 600 }

/* === Empty state === */
#empty {
  position: fixed; inset: 0; display: flex; align-items: center; justify-content: center;
  flex-direction: column; gap: 16px; z-index: 5;
  padding: 120px 20px 40px; text-align: center; pointer-events: none;
}
#empty.hide { display: none }
#empty h1 {
  font-size: clamp(32px,6vw,64px); font-weight: 700; letter-spacing: -.03em; margin: 0;
  background: linear-gradient(135deg,#fff 0%,var(--accent) 100%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
#empty p { font-size: 14px; color: var(--text-dim); max-width: 500px; margin: 0; line-height: 1.6 }
#empty .hint { font-size: 11px; color: var(--text-dim); font-family: "JetBrains Mono", monospace; opacity: .7; margin-top: 12px }
kbd {
  background: rgba(255,255,255,.08); border: 1px solid var(--panel-border);
  border-radius: 4px; padding: 2px 6px; font-size: 10px;
  font-family: "JetBrains Mono", monospace;
}

/* === Toast === */
#toast {
  position: fixed; bottom: 80px; left: 50%;
  transform: translateX(-50%) translateY(20px);
  background: var(--panel); backdrop-filter: blur(12px);
  border: 1px solid var(--panel-border); border-radius: 10px;
  padding: 12px 18px; font-size: 13px; box-shadow: var(--shadow);
  z-index: 50; opacity: 0; transition: all .3s; pointer-events: none;
}
#toast.show { opacity: 1; transform: translateX(-50%) translateY(0) }
#toast.err { border-color: var(--danger); color: var(--danger) }

/* === Minimap === */
#minimap {
  position: fixed; left: 16px; bottom: 200px; z-index: 14;
  width: 180px; height: 120px;
  background: rgba(8,10,18,.85); backdrop-filter: blur(10px);
  border: 1px solid var(--panel-border); border-radius: 10px;
  box-shadow: var(--shadow); overflow: hidden;
  cursor: pointer; display: none;
}
#minimap.show { display: block }
#minimapCanvas { display: block; width: 100%; height: 100% }
#minimapViewport {
  position: absolute; border: 1.5px solid var(--accent);
  background: rgba(100,210,255,.08); border-radius: 1px;
  pointer-events: none; transition: all .08s ease-out;
}

/* === Compass === */
#compass { position: fixed; right: 16px; bottom: 16px; z-index: 14; width: 58px; height: 58px; opacity: .6; pointer-events: none }
#scalebar {
  position: fixed; left: 16px; bottom: 180px; z-index: 14;
  background: var(--panel); backdrop-filter: blur(12px);
  border: 1px solid var(--panel-border); border-radius: 6px;
  padding: 4px 10px; font-size: 10px; font-family: "JetBrains Mono", monospace;
  color: var(--text-dim); pointer-events: none; display: none;
}
#scalebar.show { display: block }
.scalebar-bar {
  display: inline-block; width: 60px; height: 4px; background: var(--text);
  vertical-align: middle; margin-right: 6px;
  border-left: 1px solid var(--text); border-right: 1px solid var(--text);
}

/* === Mobile toggle === */
#togglePanel {
  position: fixed; right: 16px; top: 16px; z-index: 16;
  background: var(--panel); border: 1px solid var(--panel-border);
  border-radius: 10px; padding: 8px 10px; display: none;
  backdrop-filter: blur(12px);
}

@keyframes spin { to { transform: rotate(360deg) } }
@keyframes fadeIn { from { opacity: 0; transform: translateY(-4px) } to { opacity: 1; transform: none } }

@media (max-width: 768px) {
  #controls { top: auto; bottom: 76px; right: 8px; left: 8px; width: auto; transform: none; max-height: 45vh }
  #controls.collapsed { transform: translateY(calc(100% + 80px)) }
  #info { max-width: calc(100% - 32px); bottom: auto; top: 72px; font-size: 12px }
  #quickWrap { display: none }
  #togglePanel { display: block }
  #featurePanel { top: auto; bottom: 76px; right: 8px; left: 8px; width: auto }
  #compass { width: 44px; height: 44px; right: 8px; bottom: 76px }
  #scalebar { display: none !important }
  #minimap { display: none !important }
}

::-webkit-scrollbar { width: 6px; height: 6px }
::-webkit-scrollbar-thumb { background: rgba(255,255,255,.12); border-radius: 3px }
::-webkit-scrollbar-track { background: transparent }