Modernize frontend with tabs, HTMX, and Tailwind build pipeline

Complete UI overhaul implementing modern design patterns with HTMX for
dynamic updates, proper Tailwind build pipeline, and improved UX.

Build Pipeline:
- Add npm + PostCSS + Tailwind CSS configuration
- Custom design system with brand colors
- Compiled CSS: 27KB (vs 3MB CDN), 99% reduction
- Makefile for unified build commands
- Inter font for improved typography

Tab Interface:
- Separate Tasks tab from Notes tab using HTMX
- Partial page updates without full refreshes
- Tab state management with proper refresh handling
- New endpoints: /tabs/tasks, /tabs/notes, /tabs/refresh

Template Architecture:
- Modular partials system (7 reusable components)
- Cleaner separation of concerns

Empty Board Management:
- Active boards in main 3-column grid
- Empty boards in collapsible section
- Reduces visual clutter

Visual Design Enhancements:
- Inter font, brand color accents
- Improved typography hierarchy and spacing
- Enhanced card styling with hover effects

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

1 files changed, 0 insertions, 70 deletions

diff --git a/web/static/css/styles.css b/web/static/css/styles.css
deleted file mode 100644
index aee6ee3..0000000
--- a/web/static/css/styles.css
+++ /dev/null
@@ -1,70 +0,0 @@
-/* Custom styles for Personal Dashboard */
-
-/* Line clamp utility for truncating text */
-.line-clamp-3 {
-    display: -webkit-box;
-    -webkit-line-clamp: 3;
-    -webkit-box-orient: vertical;
-    overflow: hidden;
-}
-
-/* Loading spinner */
-.spinner {
-    border: 3px solid #f3f3f3;
-    border-top: 3px solid #3b82f6;
-    border-radius: 50%;
-    width: 20px;
-    height: 20px;
-    animation: spin 1s linear infinite;
-    display: inline-block;
-    margin-left: 8px;
-}
-
-@keyframes spin {
-    0% { transform: rotate(0deg); }
-    100% { transform: rotate(360deg); }
-}
-
-/* Smooth transitions */
-* {
-    transition-property: background-color, border-color, color, fill, stroke;
-    transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1);
-    transition-duration: 150ms;
-}
-
-/* Custom scrollbar */
-::-webkit-scrollbar {
-    width: 8px;
-    height: 8px;
-}
-
-::-webkit-scrollbar-track {
-    background: #f1f1f1;
-}
-
-::-webkit-scrollbar-thumb {
-    background: #888;
-    border-radius: 4px;
-}
-
-::-webkit-scrollbar-thumb:hover {
-    background: #555;
-}
-
-/* Print styles */
-@media print {
-    .no-print {
-        display: none;
-    }
-}
-
-/* Dark mode support (optional) */
-@media (prefers-color-scheme: dark) {
-    /* Uncomment to enable dark mode */
-    /*
-    body {
-        background-color: #1a202c;
-        color: #e2e8f0;
-    }
-    */
-}