feat: add logo and logo-inspired color theme

- Add transparent SVG logo to img/
- Serve img/ as static files, set SVG favicon
- Show logo on login page and header bar
- Theme Quasar CSS variables using logo palette:
  light: primary #3598C3, secondary #5AA6B9, header navy gradient
  dark: primary #5AA6B9, secondary #3598C3, darker header gradient

wiregui/main.py

@@ -7,6 +7,9 @@ from wiregui.config import get_settings
 from wiregui.db import init_db
 from wiregui.log_config import setup_logging
 
+# Serve static assets (logo, images)
+app.add_static_files("/img", "img")
+
 # Mount REST API
 app.include_router(api_router, prefix="/api")
 
@@ -89,6 +92,7 @@ def main() -> None:
         host=settings.host,
         port=settings.port,
         title="WireGUI",
+        favicon="img/wiregui.svg",
         storage_secret=settings.secret_key,
         reload=True,
     )

wiregui/pages/layout.py

@@ -64,6 +64,7 @@ def layout(title: str = "WireGUI"):
     with ui.header().classes("items-center justify-between"):
         with ui.row().classes("items-center"):
             ui.button(icon="menu", on_click=lambda: drawer.toggle()).props("flat color=white")
+            ui.image("/img/wiregui.svg").classes("w-8 h-8")
             ui.label("WireGUI").classes("text-h6")
         with ui.row().classes("items-center"):
             if role == "admin":

wiregui/pages/login.py

@@ -62,6 +62,7 @@ async def login_page():
             ui.navigate.to("/")
 
     with ui.column().classes("absolute-center items-center"):
+        ui.image("/img/wiregui.svg").classes("w-20 h-20")
         ui.label("WireGUI").classes("text-h4 text-bold")
         ui.label("Sign in to your account").classes("text-subtitle1 q-mb-md")
 

wiregui/pages/style.py

@@ -2,19 +2,65 @@
 
 from nicegui import ui
 
+# Logo palette
+_NAVY = "#0E2747"
+_BLUE = "#3598C3"
+_TEAL = "#5AA6B9"
+_TEAL_LIGHT = "#7AC7D6"
+_MID_BLUE = "#325F7B"
+
 
 def apply_style():
-    """Add Manrope font and global CSS overrides. Call once per page."""
+    """Add Manrope font, logo-based color theme, and global CSS overrides. Call once per page."""
     ui.add_head_html(
         '<link rel="preconnect" href="https://fonts.googleapis.com">'
         '<link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>'
         '<link href="https://fonts.googleapis.com/css2?family=Manrope:wght@200..800&display=swap" rel="stylesheet">'
     )
-    ui.add_css("""
-        body, input, button, select, textarea {
+    ui.add_css(f"""
+        body, input, button, select, textarea {{
             font-family: 'Manrope', sans-serif !important;
-        }
-        code, .font-mono, .q-table__container .monospace {
+        }}
+        code, .font-mono, .q-table__container .monospace {{
             font-family: 'JetBrains Mono', 'Fira Code', monospace !important;
-        }
+        }}
+
+        /* ---- Light theme colors ---- */
+        :root {{
+            --q-primary: {_BLUE};
+            --q-secondary: {_TEAL};
+            --q-accent: {_TEAL_LIGHT};
+            --q-dark: {_NAVY};
+            --q-positive: #21BA45;
+            --q-negative: #C10015;
+            --q-info: {_MID_BLUE};
+            --q-warning: #F2C037;
+        }}
+
+        /* Header bar */
+        .q-header {{
+            background: linear-gradient(135deg, {_NAVY} 0%, {_MID_BLUE} 100%) !important;
+        }}
+
+        /* Left drawer */
+        .q-drawer {{
+            border-right-color: {_TEAL}33 !important;
+        }}
+
+        /* ---- Dark theme overrides ---- */
+        body.body--dark {{
+            --q-primary: {_TEAL};
+            --q-secondary: {_BLUE};
+            --q-accent: {_TEAL_LIGHT};
+            --q-dark: {_NAVY};
+            --q-info: {_TEAL_LIGHT};
+        }}
+
+        body.body--dark .q-header {{
+            background: linear-gradient(135deg, {_NAVY} 0%, #1a3a5c 100%) !important;
+        }}
+
+        body.body--dark .q-drawer {{
+            border-right-color: {_MID_BLUE}44 !important;
+        }}
     """)