:root {
  --bg: #0c0f14;
  --panel: #12161d;
  --panel-2: #171c25;
  --edge: #232a35;
  --edge-hi: #33404f;
  --ink: #e7ecf3;
  --ink-dim: #97a3b4;
  --ink-faint: #5f6b7a;
  --accent: #ffb454;      /* sun / shadow */
  --accent-2: #4fd0e3;    /* bearing */
  --north: #ff5d6c;
  --tip: #ffd166;
  --font: "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, serif;
  --mono: ui-monospace, "SF Mono", "JetBrains Mono", Menlo, Consolas, monospace;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  height: 100%;
  background:
    radial-gradient(1200px 600px at 80% -10%, #16202c 0%, transparent 60%),
    var(--bg);
  color: var(--ink);
  font-family: var(--mono);
  -webkit-font-smoothing: antialiased;
}

body {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  padding: 14px;
  gap: 12px;
}

/* ---------- top bar ---------- */
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.brand { display: flex; align-items: center; gap: 12px; }
.brand-mark {
  font-size: 30px;
  line-height: 1;
  color: var(--accent);
  filter: drop-shadow(0 0 10px rgba(255,180,84,.35));
}
.brand-text h1 {
  margin: 0;
  font-family: var(--font);
  font-size: 22px;
  letter-spacing: .5px;
  font-weight: 600;
}
.brand-text p {
  margin: 2px 0 0;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 2.5px;
  color: var(--ink-faint);
}
.loc-readout {
  font-size: 12px;
  color: var(--ink-dim);
  border: 1px solid var(--edge);
  border-radius: 999px;
  padding: 6px 14px;
  background: var(--panel);
}

/* ---------- stage (single 3D scene) ---------- */
.stage {
  position: relative;
  flex: 1 1 auto;
  min-height: 440px;
  background: var(--panel);
  border: 1px solid var(--edge);
  border-radius: 14px;
  overflow: hidden;
}
.scene { position: absolute; inset: 0; cursor: grab; }
.scene:active { cursor: grabbing; }
.scene canvas { display: block; width: 100% !important; height: 100% !important; }

.scene-tools {
  position: absolute;
  z-index: 6;
  top: 12px; right: 12px;
  display: flex;
  gap: 8px;
}

.viewer-legend {
  position: absolute;
  z-index: 5;
  bottom: 10px;
  left: 12px;
  display: flex;
  gap: 14px;
  font-size: 10px;
  letter-spacing: .5px;
  color: var(--ink-dim);
  pointer-events: none;
}
.lg::before {
  content: "";
  display: inline-block;
  width: 9px; height: 9px;
  border-radius: 50%;
  margin-right: 5px;
  vertical-align: middle;
}
.lg-tip::before  { background: var(--tip); }
.lg-beam::before { background: var(--accent-2); }
.lg-mon::before  { background: var(--accent); }

.viewer-note {
  position: absolute;
  z-index: 6;
  inset: auto 12px 34px 12px;
  max-width: 420px;
  margin: 0 auto;
  background: rgba(20,24,31,.92);
  border: 1px solid var(--edge-hi);
  border-radius: 8px;
  padding: 8px 12px;
  font-size: 12px;
  color: var(--accent);
  text-align: center;
}

/* ---------- controls ---------- */
.controls {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  background: var(--panel);
  border: 1px solid var(--edge);
  border-radius: 14px;
  padding: 14px 16px;
}
.ctl-group {
  display: flex;
  align-items: flex-end;
  gap: 12px;
  flex: 1 1 260px;
}
.ctl {
  display: flex;
  flex-direction: column;
  gap: 6px;
  flex: 1 1 auto;
}
.ctl-title {
  font-size: 10px;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--ink-dim);
}
.ctl-title em {
  font-style: normal;
  color: var(--accent);
  margin-left: 6px;
  font-variant-numeric: tabular-nums;
}
.ctl-hint {
  font-size: 10px;
  color: var(--ink-faint);
}
input[type="date"], input[type="time"] {
  background: var(--panel-2);
  border: 1px solid var(--edge);
  color: var(--ink);
  border-radius: 8px;
  padding: 8px 10px;
  font-family: var(--mono);
  font-size: 13px;
  color-scheme: dark;
}
input[type="date"]:focus, input[type="time"]:focus,
input[type="range"]:focus-visible {
  outline: 2px solid var(--accent-2);
  outline-offset: 1px;
}
.ctl-slider input[type="range"] { width: 100%; }

input[type="range"] {
  -webkit-appearance: none;
  appearance: none;
  height: 4px;
  border-radius: 4px;
  background: linear-gradient(90deg, var(--accent) 0%, var(--edge-hi) 0%);
  margin: 8px 0 2px;
}
input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 16px; height: 16px;
  border-radius: 50%;
  background: var(--accent);
  border: 2px solid #0c0f14;
  box-shadow: 0 0 8px rgba(255,180,84,.5);
  cursor: pointer;
}
input[type="range"]::-moz-range-thumb {
  width: 16px; height: 16px;
  border: 2px solid #0c0f14;
  border-radius: 50%;
  background: var(--accent);
  cursor: pointer;
}

.btn {
  background: var(--panel-2);
  color: var(--ink);
  border: 1px solid var(--edge-hi);
  border-radius: 8px;
  padding: 9px 16px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 1px;
  text-transform: uppercase;
  cursor: pointer;
  transition: border-color .15s, color .15s;
}
.btn:hover { border-color: var(--accent); color: var(--accent); }

/* ---------- readouts ---------- */
.readouts {
  display: grid;
  grid-template-columns: repeat(4, 1fr) 1.4fr;
  gap: 10px;
}
.ro {
  background: var(--panel);
  border: 1px solid var(--edge);
  border-radius: 12px;
  padding: 10px 14px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  min-width: 0;
}
.ro-k {
  font-size: 9px;
  letter-spacing: 1.6px;
  text-transform: uppercase;
  color: var(--ink-faint);
}
.ro-v {
  font-size: 14px;
  color: var(--ink);
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.ro-wide .ro-v { white-space: normal; font-size: 13px; line-height: 1.35; }

/* ---------- responsive ---------- */
@media (max-width: 860px) {
  .readouts { grid-template-columns: 1fr 1fr; }
  .ro-wide { grid-column: 1 / -1; }
  .brand-text h1 { font-size: 17px; }
}