:root {
  --bg: #0b0e14;
  --glass: rgba(17, 20, 28, 0.78);
  --glass-brd: rgba(255, 255, 255, 0.08);
  --ink: #e9e7e2;
  --muted: #9aa2ad;
  --faint: #6b7280;
  --accent: #e0a458;       /* rail amber */
  --accent-2: #2ec4b6;     /* FS teal */
  --shadow: 0 8px 30px rgba(0, 0, 0, 0.45);
}

* { box-sizing: border-box; }
html, body { margin: 0; height: 100%; }
body {
  font-family: Inter, system-ui, sans-serif;
  background: var(--bg);
  color: var(--ink);
  overflow: hidden;
  -webkit-font-smoothing: antialiased;
}
#map { position: absolute; inset: 0; }

/* shared glass panels */
.panel {
  position: absolute;
  background: var(--glass);
  border: 1px solid var(--glass-brd);
  border-radius: 14px;
  box-shadow: var(--shadow);
  backdrop-filter: blur(14px) saturate(1.1);
  -webkit-backdrop-filter: blur(14px) saturate(1.1);
  z-index: 5;
}

/* brand */
.brand { top: 18px; left: 18px; padding: 16px 20px 14px; max-width: 280px; }
.wordmark {
  font-family: Fraunces, Georgia, serif;
  font-weight: 600;
  font-size: 30px;
  letter-spacing: 0.5px;
  line-height: 1;
}
.wordmark .dot { color: var(--accent); }
.brand .sub { margin-top: 4px; color: var(--muted); font-size: 13px; }
.brand .sub em { color: var(--accent); font-style: normal; }
.brand .dataset {
  margin-top: 10px; padding-top: 10px;
  border-top: 1px solid var(--glass-brd);
  font-size: 12px; color: var(--faint); letter-spacing: 0.3px;
}

/* legend */
.legend { top: 18px; right: 18px; padding: 14px 16px; width: 232px; max-height: calc(100vh - 36px); overflow: hidden; }
.legend-title {
  font-size: 11px; text-transform: uppercase; letter-spacing: 1.4px;
  color: var(--faint); margin: 2px 0 8px;
}
.legend-title:not(:first-child) { margin-top: 14px; }
/* layer toggles */
.layers { margin: 0 0 12px; padding-bottom: 10px; border-bottom: 1px solid var(--glass-brd); }
.lg-toggle {
  display: flex; align-items: center; gap: 8px; cursor: pointer; user-select: none;
  font-size: 12.5px; color: var(--ink); margin: 0 0 7px;
}
.lg-toggle:last-child { margin-bottom: 0; }
.lg-toggle input { accent-color: var(--accent); width: 14px; height: 14px; cursor: pointer; flex: none; }
.lg-toggle.off { color: var(--faint); }
/* operator list: scrolls when a feed has many operators (e.g. the US, ~1000) */
.ops {
  list-style: none; margin: 0; padding: 0; display: grid; gap: 5px;
  max-height: 40vh; overflow-y: auto; padding-right: 6px;
  scrollbar-width: thin; scrollbar-color: rgba(255,255,255,0.18) transparent;
}
.ops::-webkit-scrollbar { width: 8px; }
.ops::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.16); border-radius: 4px; }
.ops::-webkit-scrollbar-track { background: transparent; }
.ops li { display: flex; align-items: center; gap: 9px; font-size: 12.5px; color: var(--ink); }
.ops .sw { width: 18px; height: 4px; border-radius: 3px; flex: none; }
.ops li.pseudo { color: var(--muted); }
.ops li.pseudo .sw { background-image: repeating-linear-gradient(90deg, currentColor 0 3px, transparent 3px 6px) !important; }
.ops .era { color: var(--faint); font-size: 11px; margin-left: auto; }
/* operator filtering: checkbox + click-to-solo, search, reset */
.op-head { display: flex; align-items: baseline; justify-content: space-between; }
.ops-reset {
  background: none; border: 0; padding: 0; cursor: pointer;
  color: var(--accent); font-size: 10px; letter-spacing: 0.3px; text-transform: none;
}
.ops-search {
  width: 100%; margin: 0 0 8px; padding: 5px 8px; box-sizing: border-box;
  background: rgba(255,255,255,0.05); border: 1px solid var(--glass-brd);
  border-radius: 7px; color: var(--ink); font: inherit; font-size: 11.5px; outline: none;
}
.ops-search::placeholder { color: var(--faint); }
.ops .op-cb { flex: none; width: 12px; height: 12px; margin: 0; cursor: pointer; accent-color: var(--accent); }
.ops .op-name { cursor: pointer; }
.ops .op-name:hover { color: var(--accent); }
.ops li.op-off { opacity: 0.38; }

.uncert { display: flex; align-items: center; gap: 10px; }
.uncert .ramp {
  flex: 1; height: 8px; border-radius: 4px;
  background: linear-gradient(90deg, rgba(246,200,120,0.12), var(--accent));
}
.uncert-labels { display: flex; justify-content: space-between; }
.uncert .uncert-labels { display: none; }
.legend .note {
  margin: 10px 0 0; font-size: 11px; line-height: 1.45; color: var(--faint);
}

/* timeline */
.timeline {
  left: 50%; bottom: 22px; transform: translateX(-50%);
  width: min(820px, calc(100vw - 36px));
  padding: 14px 20px; display: flex; align-items: center; gap: 18px;
}
.play {
  flex: none; width: 46px; height: 46px; border-radius: 50%;
  border: 1px solid var(--glass-brd); background: rgba(255,255,255,0.04);
  color: var(--ink); font-size: 15px; cursor: pointer; transition: all .15s ease;
}
.play:hover { background: var(--accent); color: #1a1205; border-color: transparent; }
.play.on { background: var(--accent); color: #1a1205; border-color: transparent; }

.year-block { flex: none; width: 92px; text-align: left; }
.year {
  font-family: Fraunces, Georgia, serif; font-weight: 600;
  font-size: 34px; line-height: 1; letter-spacing: 0.5px;
  font-variant-numeric: tabular-nums;
}
.counts { margin-top: 4px; font-size: 11px; color: var(--muted); }

.track-wrap { flex: 1; position: relative; padding-top: 4px; }
.era {
  height: 15px; margin-bottom: 3px; text-align: right;
  font-size: 11.5px; font-style: italic; color: var(--accent);
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
  opacity: 0.9; transition: opacity .2s ease;
}
.era:empty { opacity: 0; }
.era a { color: inherit; text-decoration: none; border-bottom: 1px dotted currentColor; }
.era a:hover { color: #fff; }
.slider {
  -webkit-appearance: none; appearance: none; width: 100%; height: 6px;
  border-radius: 4px; outline: none; cursor: pointer;
  background: linear-gradient(90deg, var(--accent) 0%, var(--accent) var(--pct,40%), rgba(255,255,255,0.12) var(--pct,40%), rgba(255,255,255,0.12) 100%);
}
.slider::-webkit-slider-thumb {
  -webkit-appearance: none; width: 18px; height: 18px; border-radius: 50%;
  background: #fff; border: 3px solid var(--accent); cursor: grab; box-shadow: 0 2px 6px rgba(0,0,0,.4);
}
.slider::-moz-range-thumb {
  width: 16px; height: 16px; border-radius: 50%; background: #fff;
  border: 3px solid var(--accent); cursor: grab;
}
.ticks { position: relative; height: 16px; margin-top: 6px; }
.tick { position: absolute; transform: translateX(-50%); text-align: center; }
.tick .bar { width: 1px; height: 5px; background: var(--faint); margin: 0 auto 2px; }
.tick .lab { font-size: 10px; color: var(--muted); white-space: nowrap; cursor: default; }

.credit {
  position: absolute; right: 12px; bottom: 6px; z-index: 4;
  font-size: 10px; color: rgba(154,162,173,0.5);
  max-width: min(62vw, 680px); white-space: nowrap;
  overflow: hidden; text-overflow: ellipsis;
}

/* drag & drop loader */
.drop {
  position: absolute; inset: 0; z-index: 20;
  display: flex; align-items: center; justify-content: center;
  background: rgba(8, 10, 15, 0.72); backdrop-filter: blur(3px);
}
body.loaded .drop { display: none; }
.drop.over { background: rgba(8, 10, 15, 0.85); }
.drop-card {
  width: min(420px, calc(100vw - 48px));
  background: var(--glass); border: 1.5px dashed var(--glass-brd);
  border-radius: 18px; box-shadow: var(--shadow);
  padding: 34px 32px; text-align: center; transition: border-color .15s ease, transform .15s ease;
}
.drop.over .drop-card { border-color: var(--accent); transform: scale(1.015); }
.drop-ic {
  font-size: 30px; width: 60px; height: 60px; margin: 0 auto 14px;
  display: flex; align-items: center; justify-content: center;
  border-radius: 50%; background: rgba(224,164,88,0.14); color: var(--accent);
}
.drop-h { font-family: Fraunces, Georgia, serif; font-weight: 600; font-size: 21px; }
.drop-p { margin-top: 6px; color: var(--muted); font-size: 13px; }
.browse-btn {
  display: inline-block; margin-top: 16px; padding: 8px 16px; cursor: pointer;
  font-size: 13px; color: var(--ink); border: 1px solid var(--glass-brd);
  border-radius: 9px; background: rgba(255,255,255,0.04); transition: all .15s ease;
}
.browse-btn:hover { background: var(--accent); color: #1a1205; border-color: transparent; }
.drop-status {
  list-style: none; margin: 18px 0 0; padding: 14px 0 0;
  border-top: 1px solid var(--glass-brd);
  display: grid; gap: 5px; font-size: 12.5px; color: var(--faint); text-align: left;
  max-width: 220px; margin-inline: auto;
}
.drop-status li.ok { color: var(--accent-2); }
.drop-status li.err { color: #e15759; }
.drop-gh { margin-top: 14px; font-size: 11px; color: var(--faint); }
.drop-gh code { color: var(--muted); background: rgba(255,255,255,0.05); padding: 1px 5px; border-radius: 5px; font-size: 10.5px; }

/* deck tooltip */
.deck-tooltip {
  font-family: Inter, sans-serif !important; font-size: 12px !important;
  background: rgba(12,15,22,0.94) !important; color: var(--ink) !important;
  border: 1px solid var(--glass-brd) !important; border-radius: 8px !important;
  padding: 8px 11px !important; box-shadow: var(--shadow) !important;
  max-width: 240px;
}
.deck-tooltip b { color: var(--accent); }
.deck-tooltip .t-op { color: var(--muted); }

@media (max-width: 720px) {
  .legend { display: none; }
  .brand { max-width: 200px; padding: 12px 14px; }
  .wordmark { font-size: 24px; }
}