diff --git a/src/themes/nightops.js b/src/themes/nightops.js
new file mode 100644
index 0000000..ee3c82d
--- /dev/null
+++ b/src/themes/nightops.js
@@ -0,0 +1,329 @@
+/**
+ * Night Ops Theme for Navi
+ *
+ * Black and red tactical night operations display optimized for absolute
+ * darkness. Inspired by military cockpit instruments, submarine control
+ * rooms, and ship bridge displays designed for total darkness.
+ *
+ * Red preserves scotopic (dark-adapted) vision better than any other color.
+ * This is MORE aggressive than Tactical — zero ambient light, eyes fully
+ * dark-adapted, any non-red light is unacceptable.
+ *
+ * Red-on-black rules:
+ * - ONLY red and black. No green, no blue, no amber, no white, no gray.
+ * - Text is red on black, not white on black.
+ * - "Bright" means brighter red (#cc3333), "dim" means darker red (#551111).
+ * - Water is pure black — no blue tint whatsoever.
+ * - Vegetation is very dark red-brown, barely distinguishable from land.
+ * - The ONLY contrast axis is light-red to dark-red to black.
+ */
+
+/**
+ * Map flavor colors - protomaps-themes-base schema
+ * All 73 flat keys + pois + landcover nested objects
+ */
+const nightopsColors = {
+  // Background & earth - pure black with faint red
+  background: "#0a0000",
+  earth: "#080000",
+
+  // Land use areas - very dark red-brown
+  park_a: "#120505",
+  park_b: "#150606",
+  hospital: "#100404",
+  industrial: "#0c0303",
+  school: "#100404",
+  wood_a: "#120505",
+  wood_b: "#150606",
+  pedestrian: "#0a0202",
+  scrub_a: "#100404",
+  scrub_b: "#120505",
+  glacier: "#0c0303",
+  sand: "#0c0303",
+  beach: "#100404",
+  aerodrome: "#0a0202",
+  runway: "#1a0808",
+  water: "#050000",
+  zoo: "#120505",
+  military: "#100404",
+
+  // Tunnels - black casings
+  tunnel_other_casing: "#080000",
+  tunnel_minor_casing: "#080000",
+  tunnel_link_casing: "#080000",
+  tunnel_major_casing: "#080000",
+  tunnel_highway_casing: "#080000",
+  tunnel_other: "#150606",
+  tunnel_minor: "#150606",
+  tunnel_link: "#1a0808",
+  tunnel_major: "#2a0a0a",
+  tunnel_highway: "#3a1010",
+
+  // Pier & buildings - very dark red-brown
+  pier: "#1a0808",
+  buildings: "#150606",
+
+  // Roads & casings - red spectrum by brightness
+  minor_service_casing: "#080000",
+  minor_casing: "#080000",
+  link_casing: "#080000",
+  major_casing_late: "#080000",
+  highway_casing_late: "#080000",
+  other: "#1a0808",
+  minor_service: "#1a0808",
+  minor_a: "#2a0a0a",
+  minor_b: "#1a0808",
+  link: "#3a1010",
+  major_casing_early: "#080000",
+  major: "#551515",
+  highway_casing_early: "#080000",
+  highway: "#772222",
+  railway: "#150606",
+  boundaries: "#3a1010",
+
+  // Waterway label - dim red on black water
+  waterway_label: "#551515",
+
+  // Bridges - same red spectrum
+  bridges_other_casing: "#0a0202",
+  bridges_minor_casing: "#080000",
+  bridges_link_casing: "#080000",
+  bridges_major_casing: "#080000",
+  bridges_highway_casing: "#080000",
+  bridges_other: "#1a0808",
+  bridges_minor: "#2a0a0a",
+  bridges_link: "#3a1010",
+  bridges_major: "#551515",
+  bridges_highway: "#772222",
+
+  // Labels - red with BLACK halos
+  roads_label_minor: "#441111",
+  roads_label_minor_halo: "#0a0000",
+  roads_label_major: "#551515",
+  roads_label_major_halo: "#0a0000",
+  ocean_label: "#551515",
+  peak_label: "#551515",
+  subplace_label: "#441111",
+  subplace_label_halo: "#0a0000",
+  city_label: "#cc3333",
+  city_label_halo: "#0a0000",
+  state_label: "#3a1010",
+  state_label_halo: "#0a0000",
+  country_label: "#551515",
+  address_label: "#441111",
+  address_label_halo: "#0a0000",
+
+  // POI icon colors - ALL red spectrum, differentiated by brightness
+  pois: {
+    blue: "#551515",
+    green: "#882222",
+    lapis: "#441111",
+    pink: "#772222",
+    red: "#cc3333",
+    slategray: "#3a1010",
+    tangerine: "#882222",
+    turquoise: "#551515",
+  },
+
+  // Landcover fill colors - very dark red-brown
+  landcover: {
+    grassland: "rgba(18, 5, 5, 1)",
+    barren: "rgba(12, 3, 3, 1)",
+    urban_area: "rgba(10, 2, 2, 1)",
+    farmland: "rgba(15, 4, 4, 1)",
+    glacier: "rgba(12, 3, 3, 1)",
+    scrub: "rgba(15, 5, 5, 1)",
+    forest: "rgba(21, 6, 6, 1)",
+  },
+}
+
+/**
+ * UI CSS custom properties - red-on-black terminal
+ */
+const nightopsUI = {
+  "--font-sans": "'Inter', system-ui, -apple-system, sans-serif",
+  "--font-mono": "'JetBrains Mono', ui-monospace, monospace",
+  "--font-heading": "'Inter', system-ui, -apple-system, sans-serif",
+  "--bg-base": "#0a0000",
+  "--bg-raised": "#120000",
+  "--bg-overlay": "#1a0505",
+  "--bg-input": "#0c0202",
+  "--bg-inset": "#080000",
+  "--bg-muted": "#150505",
+  "--text-primary": "#cc3333",
+  "--text-secondary": "#882222",
+  "--text-tertiary": "#551515",
+  "--text-inverse": "#0a0000",
+  "--border": "#2a0a0a",
+  "--border-subtle": "#1a0606",
+  "--accent": "#cc3333",
+  "--accent-hover": "#dd4444",
+  "--accent-muted": "#2a0a0a",
+  "--tan": "#aa2222",
+  "--tan-muted": "#1a0606",
+  "--pin-origin": "#cc3333",
+  "--pin-destination": "#aa2222",
+  "--pin-intermediate": "#882222",
+  "--pin-stroke": "#0a0000",
+  "--status-success": "#883322",
+  "--status-warning": "#cc4422",
+  "--status-danger": "#ff2222",
+  "--success": "#883322",
+  "--warning": "#cc4422",
+  "--warning-muted": "#2a0a05",
+  "--route-line": "#cc3333",
+  "--shadow": "0 2px 8px rgba(0, 0, 0, 0.8)",
+  "--shadow-lg": "0 4px 16px rgba(0, 0, 0, 0.9)",
+}
+
+/**
+ * Overlay configuration - monochrome red
+ */
+const nightopsOverlay = {
+  hillshade: {
+    exaggeration: 0.2,
+    illuminationDirection: 315,
+    shadowColor: "#000000",
+    highlightColor: "#0a0000",
+  },
+  traffic: {
+    opacity: 0.4,
+  },
+  contours: {
+    opacityMod: 0.8,
+    minorColor: "#2a0808",
+    minorOpacity: 0.5,
+    minorWidth: { z11: 0.5, z14: 1.0 },
+    intermediateColor: "#3a1010",
+    intermediateOpacity: 0.6,
+    intermediateWidth: { z8: 0.8, z14: 1.2 },
+    indexColor: "#441111",
+    indexOpacity: 0.8,
+    indexWidth: { z4: 1.2, z14: 1.8 },
+    labelColor: "#551515",
+    labelHaloColor: "#0a0000",
+    labelHaloWidth: 1.5,
+    labelOpacity: 0.8,
+    labelSize: 10,
+    labelFont: ["Noto Sans Regular"],
+  },
+  contoursTest: {
+    minorColor: "#2a0808",
+    intermediateColor: "#3a1010",
+    indexColor: "#441111",
+    labelColor: "#551515",
+  },
+  contoursTest10ft: {
+    minorColor: "#1a0606",
+    intermediateColor: "#2a0808",
+    indexColor: "#3a1010",
+    labelColor: "#441111",
+  },
+  publicLands: {
+    opacityMod: 0.4,
+    fillWA: "#150606",
+    fillNPS: "#120505",
+    fillUSFS: "#150606",
+    fillBLM: "#100404",
+    fillFWS: "#120505",
+    fillSTAT: "#150606",
+    fillLOC: "#100404",
+    fillDefault: "#0c0303",
+    fillOpacityWA: 0.20,
+    fillOpacityNPS: 0.20,
+    fillOpacityUSFS: 0.18,
+    fillOpacityBLM: 0.15,
+    fillOpacitySTAT: 0.18,
+    fillOpacityLOC: 0.15,
+    fillOpacityDefault: 0.10,
+    outlineWA: "#1a0808",
+    outlineNPS: "#1a0808",
+    outlineUSFS: "#1a0808",
+    outlineBLM: "#150606",
+    outlineFWS: "#1a0808",
+    outlineSTAT: "#1a0808",
+    outlineLOC: "#150606",
+    outlineDefault: "#150606",
+    outlineOpacityNPS: 0.5,
+    outlineOpacityUSFS: 0.4,
+    outlineOpacityDefault: 0.3,
+    outlineWidth: { z4: 0.3, z8: 0.6, z12: 0.9 },
+    labelColor: "#551515",
+    labelHaloColor: "#0a0000",
+    labelHaloWidth: 1.5,
+    labelOpacity: 0.7,
+    labelSize: { z10: 10, z14: 12 },
+    labelFont: ["Noto Sans Regular"],
+  },
+  usfsTrails: {
+    roadsColor: "#3a1010",
+    roadsOpacity: 0.8,
+    roadsWidth: { z10: 1.5, z14: 2.5, z16: 3.5 },
+    trailsMotorized: "#772222",
+    trailsBicycle: "#661818",
+    trailsHiker: "#551515",
+    trailsDefault: "#3a1010",
+    trailsOpacity: 0.8,
+    trailsWidth: { z10: 2.0, z14: 3.0, z16: 4.0 },
+    trailsDash: [2, 1.5],
+    roadsLabelColor: "#551515",
+    roadsLabelHaloColor: "#0a0000",
+    roadsLabelHaloWidth: 1.5,
+    roadsLabelOpacity: 0.8,
+    roadsLabelSize: 11,
+    trailsLabelColor: "#551515",
+    trailsLabelHaloColor: "#0a0000",
+    trailsLabelHaloWidth: 1.5,
+    trailsLabelOpacity: 0.8,
+    trailsLabelSize: 11,
+    labelFont: ["Noto Sans Regular"],
+    hitWidth: 14,
+  },
+  blmTrails: {
+    color4wdHigh: "#772222",
+    color4wdLow: "#661818",
+    colorAtv: "#772222",
+    colorMotoSingle: "#661818",
+    color2wdLow: "#551515",
+    colorNonMech: "#551515",
+    colorDefault: "#3a1010",
+    colorSnow: "#661818",
+    lineOpacity: 0.8,
+    lineOpacityOther: 0.7,
+    lineWidth: { z10: 2.0, z14: 3.0, z16: 4.0 },
+    dashImproved: [4, 2],
+    dashAggregate: [1, 2],
+    dashSnow: [4, 2, 1, 2],
+    dashOther: [4, 2, 1, 2, 1, 2],
+    labelColor: "#551515",
+    labelHaloColor: "#0a0000",
+    labelHaloWidth: 1.5,
+    labelOpacity: 0.8,
+    labelSize: 11,
+    labelFont: ["Noto Sans Regular"],
+    hitWidth: 14,
+  },
+}
+
+const nightopsSatellite = {
+  opacity: 0.5,
+  brightnessMin: 0.0,
+  brightnessMax: 0.15,
+  contrast: 0.0,
+  saturation: -1.0,
+  hueRotate: 0,
+}
+
+const nightopsTheme = {
+  id: "nightops",
+  name: "Night Ops",
+  dark: true,
+  swatch: ["#0a0000", "#cc3333", "#551515"],
+  fontImports: [],
+  colors: nightopsColors,
+  satellite: nightopsSatellite,
+  overlay: nightopsOverlay,
+  ui: nightopsUI,
+}
+
+export default nightopsTheme
diff --git a/src/themes/registry.js b/src/themes/registry.js
index 924e6c1..cdebb83 100644
--- a/src/themes/registry.js
+++ b/src/themes/registry.js
@@ -20,6 +20,7 @@ import cleanTheme from './clean.js'
 import cyberpunkTheme from './cyberpunk.js'
 import rangerTheme from './ranger.js'
 import tacticalTheme from './tactical.js'
+import nightopsTheme from './nightops.js'
 
 // ═══════════════════════════════════════════════════════════════════════════
 // UI CSS CUSTOM PROPERTIES
@@ -494,6 +495,7 @@ const themes = {
   cyberpunk: cyberpunkTheme,
   ranger: rangerTheme,
   tactical: tacticalTheme,
+  nightops: nightopsTheme,
   // Custom themes go here. Example:
   // 'midnight': {
   //   id: 'midnight',