Add dark theme support using CSS variables

- Replace hardcoded light colors with Gradio CSS variables
- Add .dark class overrides for thinking section and summary text
- Simplify theme config to use default Soft theme dark mode
- Add .env and CLAUDE.md to .gitignore

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

.gitignore

@@ -1,2 +1,6 @@
 # Ignore styling reference files
 styling_files_elluminate/
+
+# Environment and config
+.env
+CLAUDE.md

app.py

@@ -443,130 +443,104 @@ THEME = gr.themes.Soft(
     neutral_hue="slate",
     font=gr.themes.GoogleFont("Inter"),
 ).set(
-    body_background_fill="#f8fafc",
-    body_background_fill_dark="#f8fafc",
-    block_background_fill="#ffffff",
-    block_background_fill_dark="#ffffff",
     block_radius="0.75rem",
-    block_shadow="0 1px 3px 0 rgb(0 0 0 / 0.1), 0 1px 2px -1px rgb(0 0 0 / 0.1)",
-    block_border_width="1px",
-    block_border_color="#e2e8f0",
-    button_primary_background_fill="#1e293b",
-    button_primary_background_fill_hover="#334155",
-    button_primary_text_color="#ffffff",
-    input_background_fill="#ffffff",
-    input_border_color="#e2e8f0",
-    input_border_width="1px",
+    block_shadow="0 1px 3px 0 rgb(0 0 0 / 0.1)",
+    button_primary_background_fill="*primary_800",
+    button_primary_background_fill_hover="*primary_700",
 )
 
 CSS = """
 /* Base layout */
 .gradio-container {
-    max-width: 1200px !important;
+    max-width: 1100px !important;
     margin: 0 auto !important;
-    padding: 1.5rem 2rem !important;
-    overflow: visible !important;
-}
-
-/* Prevent parent elements from clipping corners */
-.gradio-container > div,
-.gradio-row,
-.contain,
-.gap {
-    overflow: visible !important;
+    padding-top: 2rem !important;
 }
 
 /* Header styling */
 .main-header {
     text-align: center;
-    padding: 1.25rem 1rem;
-    background: #ffffff;
-    border-radius: 0.75rem;
-    margin-bottom: 1rem;
-    border: 1px solid #e2e8f0;
+    margin-bottom: 2rem;
 }
 
 .main-header h1 {
-    font-size: 1.75rem;
-    font-weight: 600;
-    color: #0f172a;
-    margin-bottom: 0.25rem;
-    letter-spacing: -0.02em;
+    font-size: 2.25rem;
+    font-weight: 800;
+    margin-bottom: 0.5rem;
+    color: var(--body-text-color);
 }
 
 .main-header p {
-    color: #64748b;
+    color: var(--body-text-color-subdued);
     font-size: 0.95rem;
     margin: 0;
 }
 
-/* Card styling for columns */
-.input-panel {
-    background: #ffffff !important;
-    border-radius: 0.75rem !important;
-    border: 1px solid #e2e8f0 !important;
-    padding: 1rem !important;
-    overflow: visible !important;
-}
-
-.output-panel {
-    background: #ffffff !important;
-    border-radius: 0.75rem !important;
-    border: 1px solid #e2e8f0 !important;
-    padding: 1rem !important;
-    min-height: 300px;
-    overflow: visible !important;
-}
-
-/* Section headers - simpler, not uppercase */
+/* Section headers */
 .section-title {
-    font-size: 0.875rem !important;
-    font-weight: 600 !important;
-    color: #334155 !important;
-    margin-bottom: 0.75rem !important;
-    margin-top: 0 !important;
+    margin-bottom: 1rem !important;
+    border-bottom: 1px solid var(--border-color-primary);
+    padding-bottom: 0.5rem;
     padding-left: 4px !important;
-    padding-bottom: 0.5rem !important;
-    border-bottom: 1px solid #e2e8f0 !important;
-    overflow: visible !important;
 }
 
 .section-title h3 {
-    color: #334155 !important;
+    color: var(--body-text-color) !important;
     font-size: 0.875rem !important;
     font-weight: 600 !important;
     margin: 0 !important;
-    padding-left: 0 !important;
+}
+
+/* Output panels */
+.output-panel {
+    background: var(--block-background-fill) !important;
+    border-radius: 0.75rem !important;
+    border: 1px solid var(--border-color-primary) !important;
+    padding: 1.5rem !important;
+    min-height: 400px;
 }
 
 /* Summary output */
 .summary-text {
-    font-size: 1rem !important;
-    line-height: 1.75 !important;
-    color: #1e293b !important;
+    font-size: 1.05rem !important;
+    line-height: 1.8 !important;
+    color: var(--body-text-color) !important;
     background: transparent !important;
 }
 
-/* Thinking/Reasoning section */
+/* Thinking/Reasoning section - Light mode */
 .thinking-section {
-    background: #f8fafc;
-    border-left: 3px solid #64748b;
-    border-radius: 0 0.5rem 0.5rem 0;
-    padding: 1rem 1.25rem;
-    margin-bottom: 0;
+    background: rgba(0, 0, 0, 0.05) !important;
+    border-left: 4px solid var(--primary-500) !important;
+    padding: 1.25rem !important;
+    margin-bottom: 1.5rem !important;
+    border-radius: 0 0.75rem 0.75rem 0 !important;
+    font-style: italic !important;
 }
 
-.thinking-section p {
-    color: #475569 !important;
-    font-size: 0.9rem !important;
-    line-height: 1.6 !important;
-    margin: 0 !important;
+.thinking-section,
+.thinking-section p,
+.thinking-section span {
+    color: var(--body-text-color) !important;
+    opacity: 0.9;
+}
+
+/* Thinking section - Dark mode */
+.dark .thinking-section {
+    background: rgba(255, 255, 255, 0.1) !important;
+    border-left-color: var(--primary-400) !important;
+}
+
+/* Summary text - Dark mode */
+.dark .summary-text,
+.dark .prose {
+    color: #f1f5f9 !important;
 }
 
 /* Summary divider */
 .summary-divider {
     height: 1px;
-    background: #e2e8f0;
+    background: var(--border-color-primary);
     margin: 1.25rem 0;
 }
 
@@ -577,21 +551,17 @@ CSS = """
 
 /* Sources panel */
 .sources-panel {
-    background: #f8fafc !important;
-    border-radius: 0.5rem !important;
-    padding: 1rem !important;
-    font-size: 0.875rem !important;
-    max-height: 300px !important;
-    overflow-y: auto !important;
-    color: #374151 !important;
-    border: 1px solid #e2e8f0 !important;
+    font-size: 0.9rem !important;
+    max-height: 400px;
+    overflow-y: auto;
+    color: var(--body-text-color) !important;
 }
 
 .sources-panel p {
-    color: #374151 !important;
+    color: var(--body-text-color) !important;
     margin-bottom: 0.5rem !important;
     padding: 0.5rem 0 !important;
-    border-bottom: 1px solid #e2e8f0 !important;
+    border-bottom: 1px solid var(--border-color-primary) !important;
     line-height: 1.5 !important;
 }
 
@@ -601,104 +571,37 @@ CSS = """
 }
 
 .sources-panel strong {
-    color: #1e293b !important;
+    color: var(--body-text-color) !important;
     font-weight: 600 !important;
 }
 
-/* Accordion styling */
-.accordion {
-    background: transparent !important;
-    border: 1px solid #e2e8f0 !important;
-    border-radius: 0.5rem !important;
-    overflow: hidden !important;
-}
-
-.accordion > .label-wrap {
-    background: #f8fafc !important;
-    padding: 0.75rem 1rem !important;
-    font-weight: 500 !important;
-    color: #374151 !important;
-}
-
 /* Generate button */
 .generate-btn {
-    background: #1e293b !important;
-    border: none !important;
-    font-weight: 500 !important;
-    font-size: 0.95rem !important;
-    padding: 0.875rem 1.5rem !important;
-    border-radius: 0.5rem !important;
-    transition: all 0.15s ease !important;
-    color: #ffffff !important;
-    width: 100% !important;
-    margin-top: 0.5rem !important;
-}
-
-.generate-btn:hover {
-    background: #334155 !important;
-}
-
-.generate-btn:disabled {
-    background: #94a3b8 !important;
-}
-
-/* Input fields */
-input, textarea, select {
-    background: #ffffff !important;
-    border: 1px solid #e2e8f0 !important;
-    color: #1e293b !important;
-    border-radius: 0.5rem !important;
-    transition: all 0.15s ease !important;
-}
-
-input:focus, textarea:focus, select:focus {
-    border-color: #94a3b8 !important;
-    box-shadow: 0 0 0 2px rgba(148, 163, 184, 0.2) !important;
-    outline: none !important;
-}
-
-/* File upload area */
-.upload-button, [data-testid="file"] {
-    background: #f8fafc !important;
-    border: 1px dashed #cbd5e1 !important;
-    border-radius: 0.5rem !important;
-    transition: all 0.15s ease !important;
-    padding: 1rem !important;
-}
-
-.upload-button:hover, [data-testid="file"]:hover {
-    border-color: #94a3b8 !important;
-    background: #f1f5f9 !important;
-}
-
-/* Labels */
-label {
-    color: #475569 !important;
-    font-weight: 500 !important;
-    font-size: 0.875rem !important;
+    margin-top: 1rem;
+    font-weight: 600 !important;
 }
 
 /* Footer */
 .footer {
     text-align: center;
-    padding: 1.5rem;
-    margin-top: 1.5rem;
-    color: #94a3b8;
-    font-size: 0.8rem;
+    margin-top: 3rem;
+    padding-bottom: 2rem;
+    font-size: 0.85rem;
+    opacity: 0.6;
 }
 
 .footer a {
-    color: #475569;
+    color: var(--body-text-color);
     text-decoration: none;
     transition: color 0.15s ease;
 }
 
 .footer a:hover {
-    color: #1e293b;
+    opacity: 0.8;
 }
 
 .footer-divider {
-    color: #cbd5e1;
+    color: var(--border-color-primary);
     margin: 0 0.5rem;
 }
 
@@ -713,10 +616,6 @@ footer {
         padding: 1rem !important;
     }
 
-    .main-header {
-        padding: 1rem;
-    }
-
     .main-header h1 {
         font-size: 1.5rem;
     }
@@ -728,11 +627,11 @@ footer {
 }
 
 .sources-panel::-webkit-scrollbar-track {
-    background: #f1f5f9;
+    background: var(--block-background-fill);
 }
 
 .sources-panel::-webkit-scrollbar-thumb {
-    background: #cbd5e1;
+    background: var(--border-color-primary);
     border-radius: 2px;
 }
 """