Add centralized theme CSS variables to input.css

Move theme CSS custom properties from individual templates to
centralized location in web/static/input.css using Tailwind @layer
directives for better maintainability and to eliminate duplicate
code across templates.

web/static/input.css

@@ -2,4 +2,186 @@
 @tailwind components;
 @tailwind utilities;
 
-/* Custom theme variables are handled in CSS custom properties in templates */
+@layer base {
+  :root {
+    --bg-primary: #1a1b26;
+    --bg-secondary: #16161e;
+    --text-primary: #a9b1d6;
+    --text-secondary: #565f89;
+    --accent: #7aa2f7;
+    --border: #414868;
+  }
+
+  .theme-tokyo-night {
+    --bg-primary: #1a1b26;
+    --bg-secondary: #16161e;
+    --text-primary: #a9b1d6;
+    --text-secondary: #565f89;
+    --accent: #7aa2f7;
+    --border: #414868;
+  }
+
+  .theme-dracula {
+    --bg-primary: #282a36;
+    --bg-secondary: #21222c;
+    --text-primary: #f8f8f2;
+    --text-secondary: #6272a4;
+    --accent: #bd93f9;
+    --border: #44475a;
+  }
+
+  .theme-nord {
+    --bg-primary: #2e3440;
+    --bg-secondary: #3b4252;
+    --text-primary: #eceff4;
+    --text-secondary: #5e81ac;
+    --accent: #88c0d0;
+    --border: #4c566a;
+  }
+
+  .theme-solarized-dark {
+    --bg-primary: #002b36;
+    --bg-secondary: #073642;
+    --text-primary: #93a1a1;
+    --text-secondary: #586e75;
+    --accent: #2aa198;
+    --border: #586e75;
+  }
+
+  .theme-monokai {
+    --bg-primary: #272822;
+    --bg-secondary: #3e3d32;
+    --text-primary: #f8f8f2;
+    --text-secondary: #75715e;
+    --accent: #a6e22e;
+    --border: #49483e;
+  }
+
+  .theme-one-dark-pro {
+    --bg-primary: #282c34;
+    --bg-secondary: #21252b;
+    --text-primary: #abb2bf;
+    --text-secondary: #5c6370;
+    --accent: #61dafb;
+    --border: #3e4451;
+  }
+
+  .theme-material-dark {
+    --bg-primary: #263238;
+    --bg-secondary: #37474f;
+    --text-primary: #eeffff;
+    --text-secondary: #546e7a;
+    --accent: #80cbc4;
+    --border: #455a64;
+  }
+
+  .theme-catppuccin-mocha {
+    --bg-primary: #1e1e2e;
+    --bg-secondary: #181825;
+    --text-primary: #cdd6f4;
+    --text-secondary: #bac2de;
+    --accent: #f38ba8;
+    --border: #313244;
+  }
+
+  .theme-catppuccin-macchiato {
+    --bg-primary: #24273a;
+    --bg-secondary: #1e2030;
+    --text-primary: #cad3f5;
+    --text-secondary: #b8c0e0;
+    --accent: #f0c6c6;
+    --border: #363a4f;
+  }
+
+  .theme-catppuccin-frappe {
+    --bg-primary: #303446;
+    --bg-secondary: #292c3c;
+    --text-primary: #c6d0f5;
+    --text-secondary: #b5bfe2;
+    --accent: #f2d5cf;
+    --border: #414559;
+  }
+
+  .theme-catppuccin-latte {
+    --bg-primary: #eff1f5;
+    --bg-secondary: #e6e9ef;
+    --text-primary: #4c4f69;
+    --text-secondary: #5c5f77;
+    --accent: #d20f39;
+    --border: #bcc0cc;
+  }
+
+  .theme-wood-light {
+    --bg-primary: rgba(222, 184, 135, 0.9);
+    --bg-secondary: rgba(210, 166, 121, 0.95);
+    --text-primary: #2c1810;
+    --text-secondary: #5a3a2a;
+    --accent: #8b5a2b;
+    --border: #6b4423;
+  }
+
+  .theme-wood-dark {
+    --bg-primary: rgba(139, 115, 85, 0.9);
+    --bg-secondary: rgba(107, 83, 68, 0.95);
+    --text-primary: #f5e6d3;
+    --text-secondary: #d4c4b0;
+    --accent: #deb887;
+    --border: #5a4636;
+  }
+
+  .theme-wood-mahogany {
+    --bg-primary: rgba(160, 82, 45, 0.9);
+    --bg-secondary: rgba(139, 69, 19, 0.95);
+    --text-primary: #ffe4c4;
+    --text-secondary: #daa520;
+    --accent: #f4a460;
+    --border: #8b4513;
+  }
+
+  body {
+    background-color: var(--bg-primary);
+    color: var(--text-primary);
+  }
+
+  .card {
+    background-color: var(--bg-secondary);
+    border-color: var(--border);
+  }
+
+  .btn-primary {
+    background-color: var(--accent);
+    color: var(--bg-primary);
+  }
+
+  .btn-primary:hover {
+    opacity: 0.8;
+  }
+}
+
+@layer components {
+  .loading-spinner {
+    display: inline-block;
+    width: 40px;
+    height: 40px;
+    border: 4px solid var(--border);
+    border-top-color: var(--accent);
+    border-radius: 50%;
+    animation: spin 1s linear infinite;
+  }
+
+  @keyframes spin {
+    to { transform: rotate(360deg); }
+  }
+
+  .status-pending { background-color: #f59e0b; color: white; }
+  .status-processing { background-color: #3b82f6; color: white; }
+  .status-completed { background-color: #10b981; color: white; }
+  .status-failed { background-color: #ef4444; color: white; }
+
+  .priority-1 { background-color: #ef4444; color: white; }
+  .priority-2 { background-color: #f97316; color: white; }
+  .priority-3 { background-color: #f59e0b; color: white; }
+  .priority-5 { background-color: #10b981; color: white; }
+  .priority-7 { background-color: #6b7280; color: white; }
+  .priority-10 { background-color: #9ca3af; color: white; }
+}