only allow access to metrics from prometheus or local adresses and wireguard vpn connection

server/GameBoard.py

@@ -20,6 +20,10 @@ class GameBoard:
     self.url = self._get_game_url(True if ruleset["version"] == "cli" else False)
     self.timeout = 500
 
+  # Snake Helper Functions
+  def get_snake_name_and_version(self) -> tuple[str, str]:
+    return self.snake_class.name, self.snake_class.version
+
   # Setter Functions
   def _set_snakes(self, snakes:list[dict]):
     self.other_snakes = [ x for x in snakes if x["id"] != self.my_snake["id"] ]

server/Server.py

@@ -32,11 +32,12 @@ from server.services import (
 class Server:
   def __init__(self, data_path:str, snake_type:str, storage_type:str, debug:bool=False, check_tls_security:bool=False, game_state_backend:str='memory', game_state_redis_url:str='redis://localhost:6379/0', game_state_ttl_sec:int=900, game_state_local_cache:bool=True, metrics_backend:str='memory', metrics_redis_url:str='redis://localhost:6379/0', metrics_ttl_sec:int|None=None, gameplay_db_enabled:bool=True, gameplay_db_path:str|None=None, gameplay_db_busy_timeout_ms:int=5000):
     self.debug = debug
+    self.data_path = data_path
+
     self.snake_type = snake_type
     self.storage_type = storage_type
 
     self.config_file = os.path.join(data_path, 'data', 'snake-config.json')
-    self.data_path = data_path
     self.check_tls_security = check_tls_security
 
     self.store_game_state = False
@@ -59,9 +60,6 @@ class Server:
       stale_game_timeout_sec=self.stale_game_timeout_sec,
     )
     self.dashboard_ws_hub = DashboardWebSocketHub()
-    dashboard_event_origin = f'worker-{os.getpid()}-{int(time.time() * 1000)}'
-    dashboard_events_channel = os.getenv('DASHBOARD_EVENTS_CHANNEL', 'snake:dashboard:events')
-    dashboard_events_enabled = (self.metrics_backend_normalized == 'redis' and env_bool('DASHBOARD_EVENTS_ENABLED', True))
 
     self.metrics_collector = MetricsCollector(
       metrics_manager=MetricsStoreBuilder.build(
@@ -79,9 +77,6 @@ class Server:
     )
 
     self.game_runtime.attach_metrics_collector(self.metrics_collector)
-    self.clear_worker_metrics_on_startup = env_bool('METRICS_CLEAR_WORKERS_ON_STARTUP', True)
-    self.worker_metrics_startup_lock_ttl_sec = env_int('METRICS_STARTUP_CLEANUP_LOCK_TTL_SEC', 300)
-    self.dashboard_running_game_stale_sec = 600
     self._startup_worker_metrics_cleared = False
 
     self.logger = build_logger('Battlesnake', debug_env_var='DEBUG_SERVER')
@@ -97,21 +92,19 @@ class Server:
 
     self.gameplay_tracking = GameplayTrackingService(
       gameplay_database=self.gameplay_database,
-      snake_type=self.snake_type,
-      snake_version=self.snake_version,
       logger=self.logger,
     )
     self.dashboard_query = DashboardQueryService(
       gameplay_database=self.gameplay_database,
       ws_hub=self.dashboard_ws_hub,
       logger=self.logger,
-      dashboard_running_game_stale_sec=self.dashboard_running_game_stale_sec,
+      dashboard_running_game_stale_sec=600,
     )
     self.dashboard_events_service = DashboardEventsService(
-      enabled=dashboard_events_enabled,
+      enabled=(self.metrics_backend_normalized == 'redis' and env_bool('DASHBOARD_EVENTS_ENABLED', True)),
       redis_url=self.metrics_redis_url,
-      channel=dashboard_events_channel,
-      event_origin=dashboard_event_origin,
+      channel= os.getenv('DASHBOARD_EVENTS_CHANNEL', 'snake:dashboard:events'),
+      event_origin=f'worker-{os.getpid()}-{int(time.time() * 1000)}',
       shutdown_event=self.dashboard_ws_hub.shutdown_event,
       on_notice=self._on_dashboard_games_update_notice,
       logger=self.logger,
@@ -134,8 +127,8 @@ class Server:
       if self._startup_worker_metrics_cleared:
         return
       self._startup_worker_metrics_cleared = True
-      if self.clear_worker_metrics_on_startup:
-        should_clear = await self.metrics_collector.should_clear_worker_metrics_on_startup(self.worker_metrics_startup_lock_ttl_sec)
+      if env_bool('METRICS_CLEAR_WORKERS_ON_STARTUP', True):
+        should_clear = await self.metrics_collector.should_clear_worker_metrics_on_startup(env_int('METRICS_STARTUP_CLEANUP_LOCK_TTL_SEC', 300))
         if should_clear:
           await self.metrics_collector.clear_worker_metrics()
       await self.dashboard_events_service.start_listener()

server/blueprints/battlesnake.py

@@ -48,8 +48,8 @@ def create_battlesnake_blueprint(server:'Server') -> Blueprint:
     server.metrics_collector.record_http_request('start')
     await server.game_runtime.prune_stale_games()
     game_state = await request.get_json()
-    await server.game_runtime.create_game_board(game_state)
-    await server.gameplay_tracking.record_gameplay_start(game_state)
+    game_board = await server.game_runtime.create_game_board(game_state)
+    await server.gameplay_tracking.record_gameplay_start(game_state, game_board)
     await await_log(server.logger.info(f'GAME START: {game_state['game']}'))
     return 'ok'
 

server/blueprints/dashboard.py

@@ -25,6 +25,7 @@ def create_dashboard_blueprint(server:'Server') -> Blueprint:
       initial_game_id=initial_game_id,
       initial_summary=initial_summary,
       initial_games=initial_games,
+      battlesnake_url=os.getenv('BATTLESNAKE_GAMEBOARD_URL', 'https://play.battlesnake.com/game')
     )
 
   @blueprint.get('/dashboard/customizations/<path:asset_path>')

server/blueprints/metrics.py

@@ -1,3 +1,5 @@
+from quart_common.web.decorators import restrict_ip_addresses
+
 from quart import Blueprint, jsonify
 from typing import TYPE_CHECKING
 
@@ -8,6 +10,7 @@ def create_metrics_blueprint(server:'Server') -> Blueprint:
   blueprint = Blueprint('metrics', __name__)
 
   @blueprint.get('/metrics')
+  @restrict_ip_addresses(allow=['192.168.188.0/24', '192.168.200.0/24'], abort_code=404)
   async def metrics():
     snapshot = await server.metrics_collector.build_snapshot(
       server.game_runtime.game_last_seen_unix,
@@ -16,6 +19,7 @@ def create_metrics_blueprint(server:'Server') -> Blueprint:
     return jsonify(snapshot)
 
   @blueprint.get('/metrics/prometheus')
+  @restrict_ip_addresses(allow=['192.168.188.0/24', '192.168.200.0/24'], abort_code=404)
   async def metrics_prometheus():
     snapshot = await server.metrics_collector.build_snapshot(
       server.game_runtime.game_last_seen_unix,

server/services/gameplay_tracking.py

@@ -4,20 +4,20 @@ from server.database import GameplayDatabase
 from server.GameBoard import GameBoard
 
 class GameplayTrackingService:
-  def __init__(self, gameplay_database:GameplayDatabase, snake_type:str, snake_version:str, logger:logging):
+  def __init__(self, gameplay_database:GameplayDatabase, logger:logging):
     self.gameplay_database = gameplay_database
-    self.snake_type = snake_type
-    self.snake_version = snake_version
     self.logger = logger
 
-  async def record_gameplay_start(self, game_state:dict) -> None:
+  async def record_gameplay_start(self, game_state:dict, game_board:GameBoard) -> None:
+    snake_name, snake_version = game_board.get_snake_name_and_version()
+
     if self.gameplay_database is None:
       return
     try:
       await self.gameplay_database.record_game_start(
         game_state,
-        snake_type=self.snake_type,
-        snake_version=self.snake_version,
+        snake_type=snake_name,
+        snake_version=snake_version,
       )
     except Exception as error:
       await await_log(self.logger.warning(f"Gameplay DB start record failed:{error}"))

templates/files/css/root.css

@@ -0,0 +1,76 @@
+:root {
+  color-scheme: light;
+  --bg-1: #f2eee6;
+  --bg-2: #e7dcc8;
+  --panel: #fffcf6;
+  --line: #d9ccb6;
+  --ink: #252119;
+  --muted: #6f6657;
+  --accent: #146a4b;
+  --accent-soft: #e5f2ed;
+  --danger: #b0492a;
+  --surface: #ffffff;
+  --surface-soft: #fffdf8;
+  --row-hover: #fdf4e7;
+  --row-active: #edf8f3;
+  --shadow: rgba(41, 29, 11, 0.08);
+  --you: #1a7a56;
+  --enemy: #bf5b33;
+  --snake-1: #bf5b33;
+  --snake-2: #2f6fdd;
+  --snake-3: #8d4ad6;
+  --snake-4: #cc7a11;
+  --snake-5: #0f8f84;
+  --snake-6: #be3f70;
+  --snake-7: #6b8a12;
+  --snake-8: #9a4a2f;
+  --snake-9: #2e8698;
+  --snake-10: #7f5fdd;
+  --food: #cca100;
+  --hazard: #6a5a9b;
+  --grid: #e6dbc8;
+  --cell: #ffffff;
+  --head-ring: #111111;
+  --mono-bg: #1d1b18;
+  --mono-ink: #ecdfcb;
+  --mono-vh-offset: 430px;
+}
+
+@media (prefers-color-scheme: dark) {
+  :root {
+    color-scheme: dark;
+    --bg-1: #151819;
+    --bg-2: #1b2022;
+    --panel: #1f2527;
+    --line: #374144;
+    --ink: #e6e8e9;
+    --muted: #a8b1b3;
+    --accent: #4ec894;
+    --accent-soft: #233e35;
+    --danger: #d1734f;
+    --surface: #232b2e;
+    --surface-soft: #273134;
+    --row-hover: #2b3538;
+    --row-active: #224338;
+    --shadow: rgba(0, 0, 0, 0.35);
+    --you: #4ec894;
+    --enemy: #e2815a;
+    --snake-1: #e2815a;
+    --snake-2: #7ea8ff;
+    --snake-3: #c198ff;
+    --snake-4: #f2b857;
+    --snake-5: #67d2c8;
+    --snake-6: #ea86ad;
+    --snake-7: #b8d86b;
+    --snake-8: #e29d83;
+    --snake-9: #75c9da;
+    --snake-10: #b7a0ff;
+    --food: #ebc14b;
+    --hazard: #9b86d8;
+    --grid: #3b464a;
+    --cell: #1a2022;
+    --head-ring: #f3f5f6;
+    --mono-bg: #101416;
+    --mono-ink: #dce7e9;
+  }
+}

templates/files/css/styles.css

@@ -0,0 +1,738 @@
+* {
+  box-sizing: border-box;
+}
+
+html,
+body {
+  margin: 0;
+  padding: 0;
+  height: 100%;
+  overflow: hidden;
+  color: var(--ink);
+  font-family: "IBM Plex Sans", "Segoe UI", sans-serif;
+  background: linear-gradient(180deg, var(--bg-1), var(--bg-2));
+}
+
+.page {
+  height: 100vh;
+  display: grid;
+  grid-template-rows: auto 1fr;
+  gap: 12px;
+  padding: 12px;
+  overflow: hidden;
+}
+
+.topbar {
+  display: grid;
+  grid-template-columns: 1fr auto;
+  gap: 12px;
+  align-items: center;
+  background: var(--panel);
+  border: 1px solid var(--line);
+  border-radius: 12px;
+  padding: 10px 12px;
+  box-shadow: 0 8px 28px var(--shadow);
+}
+
+.title {
+  margin: 0;
+  font-size: 1.12rem;
+  letter-spacing: 0.01em;
+}
+
+.subtitle {
+  margin: 4px 0 0;
+  color: var(--muted);
+  font-size: 0.86rem;
+}
+
+.stats {
+  display: grid;
+  grid-template-columns: repeat(6, minmax(90px, 1fr));
+  gap: 8px;
+  min-width: 520px;
+}
+
+.stat {
+  border: 1px solid #eadfcd;
+  border-radius: 8px;
+  background: var(--surface);
+  padding: 8px;
+  text-align: center;
+}
+
+.stat .k {
+  font-size: 0.72rem;
+  color: var(--muted);
+  display: block;
+}
+
+.stat .v {
+  font-size: 1.05rem;
+  font-weight: 700;
+}
+
+.main {
+  min-height: 0;
+  display: grid;
+  grid-template-columns: 330px 1fr;
+  gap: 12px;
+}
+
+.panel {
+  background: var(--panel);
+  border: 1px solid var(--line);
+  border-radius: 12px;
+  box-shadow: 0 8px 28px var(--shadow);
+  min-height: 0;
+  display: flex;
+  flex-direction: column;
+  overflow: hidden;
+}
+
+.panel-header {
+  padding: 10px 12px;
+  border-bottom: 1px solid #eadfcd;
+}
+
+.panel-header h2 {
+  margin: 0;
+  font-size: 1rem;
+}
+
+.panel-header p {
+  margin: 4px 0 0;
+  font-size: 0.8rem;
+  color: var(--muted);
+}
+
+.games {
+  overflow-y: auto;
+  overflow-x: hidden;
+  flex: 1;
+  min-height: 0;
+}
+
+table {
+  width: 100%;
+  border-collapse: collapse;
+  font-size: 0.88rem;
+}
+
+thead th {
+  position: sticky;
+  top: 0;
+  background: var(--bg);
+  z-index: 1;
+}
+
+th,
+td {
+  text-align: left;
+  vertical-align: top;
+  padding: 8px 10px;
+  border-bottom: 1px solid #efe5d5;
+}
+
+tbody tr {
+  cursor: pointer;
+}
+
+tbody tr:hover {
+  background: var(--row-hover);
+}
+
+tbody tr.active {
+  background: var(--row-active);
+}
+
+#games-body tr:last-child td {
+  border-bottom: none;
+}
+
+.right {
+  min-height: 0;
+  display: flex;
+  flex-direction: column;
+}
+
+.controls {
+  display: flex;
+  gap: 6px;
+  flex-wrap: nowrap;
+  align-items: center;
+  padding: 2px 8px 1px;
+  border-bottom: 1px solid #eadfcd;
+  overflow-x: auto;
+  scrollbar-width: thin;
+  line-height: 1;
+  min-height: 0;
+  height: 34px;
+  margin: 0;
+}
+
+.controls>* {
+  margin: 0;
+  align-self: center;
+}
+
+button {
+  border: 1px solid #d2c3ab;
+  background: var(--surface);
+  color: var(--ink);
+  border-radius: 6px;
+  padding: 2px 7px;
+  font-weight: 600;
+  font-size: 0.8rem;
+  line-height: 1.2;
+  cursor: pointer;
+}
+
+.controls label {
+  display: flex;
+  align-items: center;
+  gap: 4px;
+  font-size: 0.8rem;
+  white-space: nowrap;
+  margin: 0;
+  line-height: 1;
+}
+
+.controls label span {
+  display: inline-block;
+  line-height: 1;
+}
+
+.controls select {
+  height: 24px;
+  font-size: 0.8rem;
+  padding: 0 4px;
+}
+
+.controls input[type="range"] {
+  width: 150px;
+  min-width: 130px;
+  margin: 0;
+  height: 12px;
+  padding: 0;
+}
+
+button.primary {
+  background: var(--accent);
+  border-color: #0f5a3f;
+  color: #fff;
+}
+
+#prev-btn,
+#next-btn {
+  width: 52px;
+  min-width: 52px;
+  text-align: center;
+}
+
+#play-btn {
+  width: 62px;
+  min-width: 62px;
+  text-align: center;
+}
+
+select,
+input[type="range"] {
+  accent-color: var(--accent);
+}
+
+.turn-badge {
+  margin-left: auto;
+  font-size: 0.76rem;
+  font-weight: 700;
+  color: var(--accent);
+  white-space: nowrap;
+  line-height: 1;
+}
+
+.content {
+  min-height: 0;
+  display: grid;
+  grid-template-columns: minmax(320px, 42%) 1fr;
+  gap: 12px;
+  padding: 8px 12px 12px;
+  align-items: stretch;
+  margin: 0;
+  flex: 1 1 auto;
+}
+
+.board-wrap {
+  min-height: 0;
+  display: grid;
+  grid-template-rows: auto 1fr;
+  gap: 8px;
+  min-height: 520px;
+}
+
+.legend {
+  display: flex;
+  gap: 8px;
+  flex-wrap: nowrap;
+  overflow-x: auto;
+  white-space: nowrap;
+  scrollbar-width: thin;
+  font-size: 0.74rem;
+  color: var(--muted);
+  padding-top: 5px;
+}
+
+.dot {
+  display: inline-block;
+  width: 10px;
+  height: 10px;
+  border-radius: 2px;
+  margin-right: 5px;
+  vertical-align: baseline;
+}
+
+.board {
+  min-height: 0;
+  height: auto;
+  width: 100%;
+  display: grid;
+  gap: 2px;
+  background: var(--grid);
+  border: 1px solid var(--line);
+  border-radius: 10px;
+  padding: 6px;
+  align-content: start;
+}
+
+.cell {
+  background: var(--cell);
+  width: 100%;
+  min-width: 0;
+  min-height: 0;
+  aspect-ratio: 1 / 1;
+  position: relative;
+  border-radius: 2px;
+}
+
+.snake-turn-cell::after {
+  content: "";
+  position: absolute;
+  inset: 0;
+  background: var(--turn-color, transparent);
+  z-index: 0;
+  pointer-events: none;
+}
+
+/* 50% = quarter-circle at the inner corner of the bend */
+.snake-turn-cell.snake-turn-ur::after {
+  border-top-right-radius: 50%;
+}
+
+.snake-turn-cell.snake-turn-ul::after {
+  border-top-left-radius: 50%;
+}
+
+.snake-turn-cell.snake-turn-dr::after {
+  border-bottom-right-radius: 50%;
+}
+
+.snake-turn-cell.snake-turn-dl::after {
+  border-bottom-left-radius: 50%;
+}
+
+.food {
+  background-image: radial-gradient(circle at center, #d73a31 0 45%, transparent 48%);
+  background-repeat: no-repeat;
+  background-position: center;
+  background-size: 78% 78%;
+}
+
+.hazard {
+  background-color: var(--hazard);
+}
+
+.hazard::before {
+  content: "";
+  position: absolute;
+  inset: 0;
+  background: rgba(20, 10, 50, 0.38) repeating-linear-gradient(135deg,
+      rgba(80, 60, 140, 0.6) 0,
+      rgba(80, 60, 140, 0.6) 2px,
+      transparent 2px,
+      transparent 6px);
+  z-index: 4;
+  pointer-events: none;
+  border-radius: inherit;
+}
+
+.snake-you {
+  background: var(--you);
+}
+
+.snake-enemy {
+  background: var(--enemy);
+}
+
+.snake-head {
+  outline: 2px solid var(--head-ring);
+  outline-offset: -2px;
+}
+
+.snake-head::after {
+  content: "";
+  position: absolute;
+  left: 30%;
+  top: 30%;
+  width: 40%;
+  height: 40%;
+  border-radius: 50%;
+  background: var(--head-ring);
+  opacity: 0.9;
+  z-index: 2;
+}
+
+.snake-head.head-style-1::after {
+  border-radius: 50%;
+}
+
+.snake-head.head-style-2::after {
+  border-radius: 2px;
+  transform: rotate(45deg);
+}
+
+.snake-head.head-style-3::after {
+  width: 52%;
+  height: 28%;
+  top: 36%;
+  left: 24%;
+  border-radius: 999px;
+}
+
+.snake-head.head-style-4::after {
+  width: 24%;
+  height: 56%;
+  top: 22%;
+  left: 38%;
+  border-radius: 999px;
+}
+
+.snake-head.head-style-5::after {
+  width: 46%;
+  height: 46%;
+  top: 27%;
+  left: 27%;
+  clip-path: polygon(50% 0, 100% 100%, 0 100%);
+  border-radius: 0;
+}
+
+.snake-head.has-head-icon::after {
+  display: none;
+}
+
+.snake-head.has-head-icon {
+  outline: none;
+}
+
+.snake-tail-you::after,
+.snake-tail-enemy::after {
+  content: "";
+  position: absolute;
+  right: 6%;
+  top: 32%;
+  width: 38%;
+  height: 36%;
+  border-radius: 3px;
+  background: rgba(255, 255, 255, 0.55);
+  z-index: 2;
+}
+
+.snake-tail-you.tail-style-1::after,
+.snake-tail-enemy.tail-style-1::after {
+  width: 38%;
+  height: 36%;
+}
+
+.snake-tail-you.tail-style-2::after,
+.snake-tail-enemy.tail-style-2::after {
+  width: 24%;
+  height: 56%;
+  right: 10%;
+  top: 22%;
+  border-radius: 999px;
+}
+
+.snake-tail-you.tail-style-3::after,
+.snake-tail-enemy.tail-style-3::after {
+  width: 44%;
+  height: 24%;
+  right: 8%;
+  top: 38%;
+  border-radius: 999px;
+}
+
+.snake-tail-you.tail-style-4::after,
+.snake-tail-enemy.tail-style-4::after {
+  width: 34%;
+  height: 34%;
+  right: 10%;
+  top: 32%;
+  transform: rotate(45deg);
+  border-radius: 1px;
+}
+
+.snake-tail-you.tail-style-5::after,
+.snake-tail-enemy.tail-style-5::after {
+  width: 42%;
+  height: 42%;
+  right: 8%;
+  top: 29%;
+  clip-path: polygon(100% 50%, 0 0, 0 100%);
+  border-radius: 0;
+}
+
+.snake-tail-you.has-tail-icon::after,
+.snake-tail-enemy.has-tail-icon::after {
+  display: none;
+}
+
+.snake-tail-you.has-tail-icon,
+.snake-tail-enemy.has-tail-icon {
+  box-shadow: none;
+}
+
+.icon-layer {
+  position: absolute;
+  inset: 2%;
+  background: var(--icon-color, currentColor);
+  -webkit-mask-image: var(--icon-url);
+  -webkit-mask-repeat: no-repeat;
+  -webkit-mask-position: center;
+  -webkit-mask-size: contain;
+  mask-image: var(--icon-url);
+  mask-repeat: no-repeat;
+  mask-position: center;
+  mask-size: contain;
+  transform: var(--icon-transform, rotate(0deg));
+  transform-origin: center;
+  pointer-events: none;
+  z-index: 2;
+}
+
+.icon-layer--tail {
+  z-index: 2;
+  opacity: 0.92;
+}
+
+.icon-layer--head {
+  z-index: 3;
+  opacity: 1;
+  background: none;
+  -webkit-mask-image: none;
+  mask-image: none;
+}
+
+.icon-layer--head>svg {
+  width: 100%;
+  height: 100%;
+  display: block;
+  overflow: visible;
+}
+
+.thinking {
+  min-height: 0;
+  overflow: auto;
+  border: 1px solid #e8dcc8;
+  border-radius: 10px;
+  background: var(--surface);
+  padding: 10px;
+  display: flex;
+  flex-direction: column;
+  gap: 10px;
+  min-height: 420px;
+}
+
+.raw-block {
+  display: flex;
+  flex-direction: column;
+  gap: 6px;
+  min-height: 0;
+  flex: 1 1 auto;
+}
+
+.think-grid {
+  display: grid;
+  grid-template-columns: repeat(3, minmax(120px, 1fr));
+  gap: 8px;
+}
+
+.chip {
+  border: 1px solid #ebdfcb;
+  border-radius: 8px;
+  padding: 8px;
+  background: var(--surface-soft);
+}
+
+.chip .k {
+  display: block;
+  font-size: 0.72rem;
+  color: var(--muted);
+}
+
+.chip .v {
+  font-size: 0.95rem;
+  font-weight: 700;
+}
+
+.section-title {
+  margin: 0;
+  font-size: 0.86rem;
+  color: var(--muted);
+  font-weight: 700;
+  letter-spacing: 0.01em;
+}
+
+.reason-list {
+  margin: 0;
+  padding-left: 18px;
+  font-size: 0.85rem;
+}
+
+.score-table {
+  width: 100%;
+  border-collapse: collapse;
+  font-size: 0.84rem;
+  table-layout: fixed;
+}
+
+.score-table td,
+.score-table th {
+  border-bottom: 1px solid #f0e7d7;
+  padding: 6px;
+  white-space: normal;
+  overflow-wrap: anywhere;
+}
+
+.snake-row {
+  background: var(--snake-row-bg, transparent);
+  cursor: pointer;
+  transition: opacity 0.15s, filter 0.15s;
+}
+
+.snake-row td {
+  color: var(--ink);
+}
+
+.snake-row td:first-child {
+  border-left: 4px solid var(--snake-row-color, transparent);
+  padding-left: 8px;
+}
+
+.snake-row.highlighted {
+  outline: 2px solid var(--snake-row-color, var(--line));
+  outline-offset: -1px;
+}
+
+.snakes-section.has-highlight .snake-row:not(.highlighted) {
+  opacity: 0.25;
+  filter: grayscale(0.6);
+}
+
+.snake-row.dead-row {
+  filter: grayscale(0.55);
+  opacity: 0.78;
+}
+
+.name-cell {
+  word-break: break-word;
+}
+
+.num-cell {
+  white-space: nowrap;
+}
+
+.health-wrap {
+  display: inline-block;
+  width: 120px;
+  height: 10px;
+  border-radius: 999px;
+  background: rgba(120, 120, 120, 0.18);
+  overflow: hidden;
+  position: relative;
+  vertical-align: middle;
+}
+
+.health-fill {
+  display: block;
+  height: 100%;
+  border-radius: inherit;
+  transition: width 120ms linear;
+}
+
+.health-text {
+  margin-left: 6px;
+  font-size: 0.74rem;
+  color: inherit;
+  opacity: 0.82;
+  vertical-align: middle;
+}
+
+.mono {
+  margin: 0;
+  font-family: "IBM Plex Mono", "Consolas", monospace;
+  font-size: 0.75rem;
+  background: var(--mono-bg);
+  color: var(--mono-ink);
+  border-radius: 8px;
+  padding: 8px;
+  overflow: auto;
+  width: -webkit-fill-available;
+  height: -webkit-fill-available;
+  min-height: 0;
+  flex: 1 1 auto;
+  resize: none;
+  max-height: calc(100vh - var(--mono-vh-offset));
+}
+
+@media (max-width: 1100px) {
+  .topbar {
+    grid-template-columns: 1fr;
+  }
+
+  .stats {
+    min-width: 0;
+    grid-template-columns: repeat(6, minmax(80px, 1fr));
+  }
+
+  .main {
+    grid-template-columns: 1fr;
+  }
+
+  .games {
+    min-height: 200px;
+  }
+
+  .content {
+    grid-template-columns: 1fr;
+  }
+
+  .board-wrap {
+    min-height: 360px;
+  }
+
+  .turn-badge {
+    margin-left: 0;
+  }
+
+  .controls {
+    flex-wrap: wrap;
+  }
+
+  .think-grid {
+    grid-template-columns: repeat(2, minmax(120px, 1fr));
+  }
+}
+
+@media (max-width: 700px) {
+  .think-grid {
+    grid-template-columns: 1fr;
+  }
+}

templates/side/dashboard.htm

@@ -4,693 +4,8 @@
   <meta charset="utf-8">
   <meta name="viewport" content="width=device-width, initial-scale=1">
   <title>Snake Dashboard</title>
-  <style>
-    :root {
-      color-scheme: light;
-      --bg-1: #f2eee6;
-      --bg-2: #e7dcc8;
-      --panel: #fffcf6;
-      --line: #d9ccb6;
-      --ink: #252119;
-      --muted: #6f6657;
-      --accent: #146a4b;
-      --accent-soft: #e5f2ed;
-      --danger: #b0492a;
-      --surface: #ffffff;
-      --surface-soft: #fffdf8;
-      --row-hover: #fdf4e7;
-      --row-active: #edf8f3;
-      --shadow: rgba(41, 29, 11, 0.08);
-      --you: #1a7a56;
-      --enemy: #bf5b33;
-      --snake-1: #bf5b33;
-      --snake-2: #2f6fdd;
-      --snake-3: #8d4ad6;
-      --snake-4: #cc7a11;
-      --snake-5: #0f8f84;
-      --snake-6: #be3f70;
-      --snake-7: #6b8a12;
-      --snake-8: #9a4a2f;
-      --snake-9: #2e8698;
-      --snake-10: #7f5fdd;
-      --food: #cca100;
-      --hazard: #6a5a9b;
-      --grid: #e6dbc8;
-      --cell: #ffffff;
-      --head-ring: #111111;
-      --mono-bg: #1d1b18;
-      --mono-ink: #ecdfcb;
-      --mono-vh-offset: 430px;
-    }
-
-    @media (prefers-color-scheme: dark) {
-      :root {
-        color-scheme: dark;
-        --bg-1: #151819;
-        --bg-2: #1b2022;
-        --panel: #1f2527;
-        --line: #374144;
-        --ink: #e6e8e9;
-        --muted: #a8b1b3;
-        --accent: #4ec894;
-        --accent-soft: #233e35;
-        --danger: #d1734f;
-        --surface: #232b2e;
-        --surface-soft: #273134;
-        --row-hover: #2b3538;
-        --row-active: #224338;
-        --shadow: rgba(0, 0, 0, 0.35);
-        --you: #4ec894;
-        --enemy: #e2815a;
-        --snake-1: #e2815a;
-        --snake-2: #7ea8ff;
-        --snake-3: #c198ff;
-        --snake-4: #f2b857;
-        --snake-5: #67d2c8;
-        --snake-6: #ea86ad;
-        --snake-7: #b8d86b;
-        --snake-8: #e29d83;
-        --snake-9: #75c9da;
-        --snake-10: #b7a0ff;
-        --food: #ebc14b;
-        --hazard: #9b86d8;
-        --grid: #3b464a;
-        --cell: #1a2022;
-        --head-ring: #f3f5f6;
-        --mono-bg: #101416;
-        --mono-ink: #dce7e9;
-      }
-    }
-
-    * { box-sizing: border-box; }
-
-    html, body {
-      margin: 0;
-      padding: 0;
-      height: 100%;
-      overflow: hidden;
-      color: var(--ink);
-      font-family: "IBM Plex Sans", "Segoe UI", sans-serif;
-      background: linear-gradient(180deg, var(--bg-1), var(--bg-2));
-    }
-
-    .page {
-      height: 100vh;
-      display: grid;
-      grid-template-rows: auto 1fr;
-      gap: 12px;
-      padding: 12px;
-      overflow: hidden;
-    }
-
-    .topbar {
-      display: grid;
-      grid-template-columns: 1fr auto;
-      gap: 12px;
-      align-items: center;
-      background: var(--panel);
-      border: 1px solid var(--line);
-      border-radius: 12px;
-      padding: 10px 12px;
-      box-shadow: 0 8px 28px var(--shadow);
-    }
-
-    .title {
-      margin: 0;
-      font-size: 1.12rem;
-      letter-spacing: 0.01em;
-    }
-
-    .subtitle {
-      margin: 4px 0 0;
-      color: var(--muted);
-      font-size: 0.86rem;
-    }
-
-    .stats {
-      display: grid;
-      grid-template-columns: repeat(6, minmax(90px, 1fr));
-      gap: 8px;
-      min-width: 520px;
-    }
-
-    .stat {
-      border: 1px solid #eadfcd;
-      border-radius: 8px;
-      background: var(--surface);
-      padding: 8px;
-      text-align: center;
-    }
-
-    .stat .k {
-      font-size: 0.72rem;
-      color: var(--muted);
-      display: block;
-    }
-
-    .stat .v {
-      font-size: 1.05rem;
-      font-weight: 700;
-    }
-
-    .main {
-      min-height: 0;
-      display: grid;
-      grid-template-columns: 330px 1fr;
-      gap: 12px;
-    }
-
-    .panel {
-      background: var(--panel);
-      border: 1px solid var(--line);
-      border-radius: 12px;
-      box-shadow: 0 8px 28px var(--shadow);
-      min-height: 0;
-      display: flex;
-      flex-direction: column;
-      overflow: hidden;
-    }
-
-    .panel-header {
-      padding: 10px 12px;
-      border-bottom: 1px solid #eadfcd;
-    }
-
-    .panel-header h2 {
-      margin: 0;
-      font-size: 1rem;
-    }
-
-    .panel-header p {
-      margin: 4px 0 0;
-      font-size: 0.8rem;
-      color: var(--muted);
-    }
-
-    .games {
-      overflow-y: auto;
-      overflow-x: hidden;
-      flex: 1;
-      min-height: 0;
-    }
-
-    table {
-      width: 100%;
-      border-collapse: collapse;
-      font-size: 0.88rem;
-    }
-
-    thead th {
-      position: sticky;
-      top: 0;
-      background: var(--bg);
-      z-index: 1;
-    }
-
-    th, td {
-      text-align: left;
-      vertical-align: top;
-      padding: 8px 10px;
-      border-bottom: 1px solid #efe5d5;
-    }
-
-    tbody tr { cursor: pointer; }
-    tbody tr:hover { background: var(--row-hover); }
-    tbody tr.active { background: var(--row-active); }
-    #games-body tr:last-child td { border-bottom: none; }
-
-    .right {
-      min-height: 0;
-      display: flex;
-      flex-direction: column;
-    }
-
-    .controls {
-      display: flex;
-      gap: 6px;
-      flex-wrap: nowrap;
-      align-items: center;
-      padding: 2px 8px 1px;
-      border-bottom: 1px solid #eadfcd;
-      overflow-x: auto;
-      scrollbar-width: thin;
-      line-height: 1;
-      min-height: 0;
-      height: 34px;
-      margin: 0;
-    }
-
-    .controls > * {
-      margin: 0;
-      align-self: center;
-    }
-
-    button {
-      border: 1px solid #d2c3ab;
-      background: var(--surface);
-      color: var(--ink);
-      border-radius: 6px;
-      padding: 2px 7px;
-      font-weight: 600;
-      font-size: 0.8rem;
-      line-height: 1.2;
-      cursor: pointer;
-    }
-
-    .controls label {
-      display: flex;
-      align-items: center;
-      gap: 4px;
-      font-size: 0.8rem;
-      white-space: nowrap;
-      margin: 0;
-      line-height: 1;
-    }
-
-    .controls label span {
-      display: inline-block;
-      line-height: 1;
-    }
-
-    .controls select {
-      height: 24px;
-      font-size: 0.8rem;
-      padding: 0 4px;
-    }
-
-    .controls input[type="range"] {
-      width: 150px;
-      min-width: 130px;
-      margin: 0;
-      height: 12px;
-      padding: 0;
-    }
-
-    button.primary {
-      background: var(--accent);
-      border-color: #0f5a3f;
-      color: #fff;
-    }
-
-    #prev-btn,
-    #next-btn {
-      width: 52px;
-      min-width: 52px;
-      text-align: center;
-    }
-
-    #play-btn {
-      width: 62px;
-      min-width: 62px;
-      text-align: center;
-    }
-
-    select,
-    input[type="range"] {
-      accent-color: var(--accent);
-    }
-
-    .turn-badge {
-      margin-left: auto;
-      font-size: 0.76rem;
-      font-weight: 700;
-      color: var(--accent);
-      white-space: nowrap;
-      line-height: 1;
-    }
-
-    .content {
-      min-height: 0;
-      display: grid;
-      grid-template-columns: minmax(320px, 42%) 1fr;
-      gap: 12px;
-      padding: 8px 12px 12px;
-      align-items: stretch;
-      margin: 0;
-      flex: 1 1 auto;
-    }
-
-    .board-wrap {
-      min-height: 0;
-      display: grid;
-      grid-template-rows: auto 1fr;
-      gap: 8px;
-      min-height: 520px;
-    }
-
-    .legend {
-      display: flex;
-      gap: 8px;
-      flex-wrap: nowrap;
-      overflow-x: auto;
-      white-space: nowrap;
-      scrollbar-width: thin;
-      font-size: 0.74rem;
-      color: var(--muted);
-      padding-top: 5px;
-    }
-
-    .dot {
-      display: inline-block;
-      width: 10px;
-      height: 10px;
-      border-radius: 2px;
-      margin-right: 5px;
-      vertical-align: baseline;
-    }
-
-    .board {
-      min-height: 0;
-      height: auto;
-      width: 100%;
-      display: grid;
-      gap: 1px;
-      background: var(--grid);
-      border: 1px solid var(--line);
-      border-radius: 10px;
-      padding: 1px;
-      align-content: start;
-    }
-
-    .cell {
-      background: var(--cell);
-      width: 100%;
-      min-width: 0;
-      min-height: 0;
-      aspect-ratio: 1 / 1;
-      position: relative;
-      border-radius: 0;
-    }
-
-    .snake-turn-cell::after {
-      content: "";
-      position: absolute;
-      inset: 0;
-      background: var(--turn-color, transparent);
-      z-index: 0;
-      pointer-events: none;
-    }
-    .snake-turn-cell.snake-turn-ur::after { border-top-right-radius: 42%; }
-    .snake-turn-cell.snake-turn-ul::after { border-top-left-radius: 42%; }
-    .snake-turn-cell.snake-turn-dr::after { border-bottom-right-radius: 42%; }
-    .snake-turn-cell.snake-turn-dl::after { border-bottom-left-radius: 42%; }
-
-    .food {
-      background-image: radial-gradient(circle at center, #d73a31 0 45%, transparent 48%);
-      background-repeat: no-repeat;
-      background-position: center;
-      background-size: 78% 78%;
-    }
-    .hazard {
-      background-color: var(--hazard);
-    }
-    .hazard::before {
-      content: "";
-      position: absolute;
-      inset: 0;
-      background: rgba(20, 10, 50, 0.38) repeating-linear-gradient(
-        135deg,
-        rgba(80, 60, 140, 0.6) 0,
-        rgba(80, 60, 140, 0.6) 2px,
-        transparent 2px,
-        transparent 6px
-      );
-      z-index: 4;
-      pointer-events: none;
-      border-radius: inherit;
-    }
-    .snake-you { background: var(--you); }
-    .snake-enemy { background: var(--enemy); }
-    .snake-head { outline: 2px solid var(--head-ring); outline-offset: -2px; }
-    .snake-head::after {
-      content: "";
-      position: absolute;
-      left: 30%;
-      top: 30%;
-      width: 40%;
-      height: 40%;
-      border-radius: 50%;
-      background: var(--head-ring);
-      opacity: 0.9;
-      z-index: 2;
-    }
-    .snake-head.head-style-1::after { border-radius: 50%; }
-    .snake-head.head-style-2::after { border-radius: 2px; transform: rotate(45deg); }
-    .snake-head.head-style-3::after { width: 52%; height: 28%; top: 36%; left: 24%; border-radius: 999px; }
-    .snake-head.head-style-4::after { width: 24%; height: 56%; top: 22%; left: 38%; border-radius: 999px; }
-    .snake-head.head-style-5::after { width: 46%; height: 46%; top: 27%; left: 27%; clip-path: polygon(50% 0, 100% 100%, 0 100%); border-radius: 0; }
-    .snake-head.has-head-icon::after { display: none; }
-    .snake-head.has-head-icon { outline: none; }
-    .snake-tail-you::after,
-    .snake-tail-enemy::after {
-      content: "";
-      position: absolute;
-      right: 6%;
-      top: 32%;
-      width: 38%;
-      height: 36%;
-      border-radius: 3px;
-      background: rgba(255, 255, 255, 0.55);
-      z-index: 2;
-    }
-    .snake-tail-you.tail-style-1::after,
-    .snake-tail-enemy.tail-style-1::after { width: 38%; height: 36%; }
-    .snake-tail-you.tail-style-2::after,
-    .snake-tail-enemy.tail-style-2::after { width: 24%; height: 56%; right: 10%; top: 22%; border-radius: 999px; }
-    .snake-tail-you.tail-style-3::after,
-    .snake-tail-enemy.tail-style-3::after { width: 44%; height: 24%; right: 8%; top: 38%; border-radius: 999px; }
-    .snake-tail-you.tail-style-4::after,
-    .snake-tail-enemy.tail-style-4::after { width: 34%; height: 34%; right: 10%; top: 32%; transform: rotate(45deg); border-radius: 1px; }
-    .snake-tail-you.tail-style-5::after,
-    .snake-tail-enemy.tail-style-5::after { width: 42%; height: 42%; right: 8%; top: 29%; clip-path: polygon(100% 50%, 0 0, 0 100%); border-radius: 0; }
-    .snake-tail-you.has-tail-icon::after,
-    .snake-tail-enemy.has-tail-icon::after { display: none; }
-    .snake-tail-you.has-tail-icon,
-    .snake-tail-enemy.has-tail-icon { box-shadow: none; }
-
-    .icon-layer {
-      position: absolute;
-      inset: 2%;
-      background: var(--icon-color, currentColor);
-      -webkit-mask-image: var(--icon-url);
-      -webkit-mask-repeat: no-repeat;
-      -webkit-mask-position: center;
-      -webkit-mask-size: contain;
-      mask-image: var(--icon-url);
-      mask-repeat: no-repeat;
-      mask-position: center;
-      mask-size: contain;
-      transform: var(--icon-transform, rotate(0deg));
-      transform-origin: center;
-      pointer-events: none;
-      z-index: 2;
-    }
-
-    .icon-layer--tail {
-      z-index: 2;
-      opacity: 0.92;
-    }
-
-    .icon-layer--head {
-      z-index: 3;
-      opacity: 1;
-      background: none;
-      -webkit-mask-image: none;
-      mask-image: none;
-    }
-
-    .icon-layer--head > svg {
-      width: 100%;
-      height: 100%;
-      display: block;
-      overflow: visible;
-    }
-
-    .thinking {
-      min-height: 0;
-      overflow: auto;
-      border: 1px solid #e8dcc8;
-      border-radius: 10px;
-      background: var(--surface);
-      padding: 10px;
-      display: flex;
-      flex-direction: column;
-      gap: 10px;
-      min-height: 420px;
-    }
-
-    .raw-block {
-      display: flex;
-      flex-direction: column;
-      gap: 6px;
-      min-height: 0;
-      flex: 1 1 auto;
-    }
-
-    .think-grid {
-      display: grid;
-      grid-template-columns: repeat(3, minmax(120px, 1fr));
-      gap: 8px;
-    }
-
-    .chip {
-      border: 1px solid #ebdfcb;
-      border-radius: 8px;
-      padding: 8px;
-      background: var(--surface-soft);
-    }
-
-    .chip .k {
-      display: block;
-      font-size: 0.72rem;
-      color: var(--muted);
-    }
-
-    .chip .v {
-      font-size: 0.95rem;
-      font-weight: 700;
-    }
-
-    .section-title {
-      margin: 0;
-      font-size: 0.86rem;
-      color: var(--muted);
-      font-weight: 700;
-      letter-spacing: 0.01em;
-    }
-
-    .reason-list {
-      margin: 0;
-      padding-left: 18px;
-      font-size: 0.85rem;
-    }
-
-    .score-table {
-      width: 100%;
-      border-collapse: collapse;
-      font-size: 0.84rem;
-      table-layout: fixed;
-    }
-
-    .score-table td,
-    .score-table th {
-      border-bottom: 1px solid #f0e7d7;
-      padding: 6px;
-      white-space: normal;
-      overflow-wrap: anywhere;
-    }
-
-    .snake-row {
-      background: var(--snake-row-bg, transparent);
-      cursor: pointer;
-      transition: opacity 0.15s, filter 0.15s;
-    }
-
-    .snake-row td {
-      color: var(--ink);
-    }
-
-    .snake-row td:first-child {
-      border-left: 4px solid var(--snake-row-color, transparent);
-      padding-left: 8px;
-    }
-
-    .snake-row.highlighted { outline: 2px solid var(--snake-row-color, var(--line)); outline-offset: -1px; }
-    .snakes-section.has-highlight .snake-row:not(.highlighted) { opacity: 0.25; filter: grayscale(0.6); }
-
-    .snake-row.dead-row {
-      filter: grayscale(0.55);
-      opacity: 0.78;
-    }
-
-    .name-cell {
-      word-break: break-word;
-    }
-
-    .num-cell {
-      white-space: nowrap;
-    }
-
-    .health-wrap {
-      display: inline-block;
-      width: 120px;
-      height: 10px;
-      border-radius: 999px;
-      background: rgba(120, 120, 120, 0.18);
-      overflow: hidden;
-      position: relative;
-      vertical-align: middle;
-    }
-
-    .health-fill {
-      display: block;
-      height: 100%;
-      border-radius: inherit;
-      transition: width 120ms linear;
-    }
-
-    .health-text {
-      margin-left: 6px;
-      font-size: 0.74rem;
-      color: inherit;
-      opacity: 0.82;
-      vertical-align: middle;
-    }
-
-    .mono {
-      margin: 0;
-      font-family: "IBM Plex Mono", "Consolas", monospace;
-      font-size: 0.75rem;
-      background: var(--mono-bg);
-      color: var(--mono-ink);
-      border-radius: 8px;
-      padding: 8px;
-      overflow: auto;
-      width: -webkit-fill-available;
-      height: -webkit-fill-available;
-      min-height: 0;
-      flex: 1 1 auto;
-      resize: none;
-      max-height: calc(100vh - var(--mono-vh-offset));
-    }
-
-    @media (max-width: 1100px) {
-      .topbar {
-        grid-template-columns: 1fr;
-      }
-      .stats {
-        min-width: 0;
-        grid-template-columns: repeat(6, minmax(80px, 1fr));
-      }
-      .main {
-        grid-template-columns: 1fr;
-      }
-      .games {
-        min-height: 200px;
-      }
-      .content {
-        grid-template-columns: 1fr;
-      }
-      .board-wrap {
-        min-height: 360px;
-      }
-      .turn-badge {
-        margin-left: 0;
-      }
-      .controls {
-        flex-wrap: wrap;
-      }
-      .think-grid {
-        grid-template-columns: repeat(2, minmax(120px, 1fr));
-      }
-    }
-
-    @media (max-width: 700px) {
-      .think-grid {
-        grid-template-columns: 1fr;
-      }
-    }
-  </style>
+  <link rel="stylesheet" href="{{ url_for('static', filename='css/root.css') }}">
+  <link rel="stylesheet" href="{{ url_for('static', filename='css/styles.css') }}">
 </head>
 <body>
   <div class="page">
@@ -828,7 +143,7 @@
     function renderGamesTable(games) {
       gamesBodyEl.innerHTML = games.map((g) => `
         <tr data-game-id="${g.game_id}">
-          <td><code>${shortId(g.game_id)}</code><br><small>${safeString(displayGameTypeOrMap(g))}</small></td>
+          <td><a href="{{ battlesnake_url }}/${g.game_id}"><code>${shortId(g.game_id)}</code></a><br><small>${safeString(displayGameTypeOrMap(g))}</small></td>
           <td>${toTitle(g.status)}</td>
           <td>${g.status === "running" ? "-" : g.winner_you ? "Win" : "Loss"}</td>
           <td>${safeString(g.final_turn)}</td>
@@ -1775,19 +1090,18 @@
           if (hazards.has(key)) cell.classList.add("hazard");
           if (foods.has(key)) cell.classList.add("food");
           if (snakeBody.has(key)) {
+            const bodyColor = snakeBody.get(key);
             const hasHeadIcon = headIconByCell.has(key);
             const hasTailIcon = tailIconByCell.has(key);
-            const bodyColor = snakeBody.get(key);
-            if (hasHeadIcon || hasTailIcon) {
-              //cell.style.background = "var(--cell)";
-            } else {
+            const isIconCell = hasHeadIcon || hasTailIcon;
+            cell.style.borderRadius = "0";
+            if (!isIconCell) {
               cell.style.background = bodyColor;
             }
             if (selectedSnakeId && snakeIdByCell.get(key) !== selectedSnakeId) {
               cell.style.opacity = "0.2";
             }
 
-            if (!snakeHead.has(key) && !snakeTail.has(key)) {
             const snakeId = snakeIdByCell.get(key);
             if (snakeId) {
               const up = snakeIdByCell.get(cellKey(x, y + 1)) === snakeId;
@@ -1795,6 +1109,7 @@
               const left = snakeIdByCell.get(cellKey(x - 1, y)) === snakeId;
               const right = snakeIdByCell.get(cellKey(x + 1, y)) === snakeId;
 
+              if (!snakeHead.has(key) && !snakeTail.has(key)) {
                 if (up && right && !down && !left) {
                   cell.classList.add("snake-turn-cell");
                   cell.classList.add("snake-turn-dl");
@@ -1816,18 +1131,34 @@
                   cell.style.setProperty("--turn-color", bodyColor);
                   cell.style.background = "var(--cell)";
                 }
+              }
 
+              // Outward shadows bridge the 2px gap to adjacent snake cells.
+              // For icon cells (head/tail), also add inset shadows to color the
+              // connecting edge of the cell itself, since the background stays
+              // transparent so the icon remains visible.
               const bridgeShadows = [];
-                if (up) bridgeShadows.push(`0 -1px 0 ${bodyColor}`);
-                if (down) bridgeShadows.push(`0 1px 0 ${bodyColor}`);
-                if (left) bridgeShadows.push(`-1px 0 0 ${bodyColor}`);
-                if (right) bridgeShadows.push(`1px 0 0 ${bodyColor}`);
+              if (up) {
+                bridgeShadows.push(`0 -2px 0 ${bodyColor}`);
+                if (isIconCell) bridgeShadows.push(`inset 0 2px 0 ${bodyColor}`);
+              }
+              if (down) {
+                bridgeShadows.push(`0 2px 0 ${bodyColor}`);
+                if (isIconCell) bridgeShadows.push(`inset 0 -2px 0 ${bodyColor}`);
+              }
+              if (left) {
+                bridgeShadows.push(`-2px 0 0 ${bodyColor}`);
+                if (isIconCell) bridgeShadows.push(`inset 2px 0 0 ${bodyColor}`);
+              }
+              if (right) {
+                bridgeShadows.push(`2px 0 0 ${bodyColor}`);
+                if (isIconCell) bridgeShadows.push(`inset -2px 0 0 ${bodyColor}`);
+              }
               if (bridgeShadows.length > 0) {
                 cell.style.boxShadow = bridgeShadows.join(", ");
               }
             }
           }
-          }
           if (snakeTail.has(key)) {
             cell.classList.add(snakeTail.get(key));
             cell.classList.add(`tail-style-${tailVariantByCell.get(key) || 1}`);