Create styles/modern.css

ui/styles/modern.css

@@ -0,0 +1,342 @@
+/* ui/styles/modern.css - Design System Foundation */
+:root {
+  /* Primary Colors (matching your current scheme) */
+  --color-primary-50: #eff6ff;
+  --color-primary-100: #dbeafe;
+  --color-primary-200: #bfdbfe;
+  --color-primary-300: #93c5fd;
+  --color-primary-400: #60a5fa;
+  --color-primary-500: #3b82f6;
+  --color-primary-600: #2563eb;
+  --color-primary-700: #1d4ed8;
+  --color-primary-800: #1e40af;
+  --color-primary-900: #1e3a8a;
+  
+  /* Success Colors */
+  --color-success-50: #f0fdf4;
+  --color-success-100: #dcfce7;
+  --color-success-200: #bbf7d0;
+  --color-success-300: #86efac;
+  --color-success-400: #4ade80;
+  --color-success-500: #22c55e;
+  --color-success-600: #16a34a;
+  --color-success-700: #15803d;
+  --color-success-800: #166534;
+  --color-success-900: #14532d;
+  
+  /* Warning Colors */
+  --color-warning-50: #fffbeb;
+  --color-warning-100: #fef3c7;
+  --color-warning-200: #fde68a;
+  --color-warning-300: #fcd34d;
+  --color-warning-400: #fbbf24;
+  --color-warning-500: #f59e0b;
+  --color-warning-600: #d97706;
+  --color-warning-700: #b45309;
+  --color-warning-800: #92400e;
+  --color-warning-900: #78350f;
+  
+  /* Danger Colors */
+  --color-danger-50: #fef2f2;
+  --color-danger-100: #fee2e2;
+  --color-danger-200: #fecaca;
+  --color-danger-300: #fca5a5;
+  --color-danger-400: #f87171;
+  --color-danger-500: #ef4444;
+  --color-danger-600: #dc2626;
+  --color-danger-700: #b91c1c;
+  --color-danger-800: #991b1b;
+  --color-danger-900: #7f1d1d;
+  
+  /* Neutral Colors */
+  --color-neutral-50: #f8fafc;
+  --color-neutral-100: #f1f5f9;
+  --color-neutral-200: #e2e8f0;
+  --color-neutral-300: #cbd5e1;
+  --color-neutral-400: #94a3b8;
+  --color-neutral-500: #64748b;
+  --color-neutral-600: #475569;
+  --color-neutral-700: #334155;
+  --color-neutral-800: #1e293b;
+  --color-neutral-900: #0f172a;
+  
+  /* Spacing */
+  --spacing-1: 0.25rem;
+  --spacing-2: 0.5rem;
+  --spacing-3: 0.75rem;
+  --spacing-4: 1rem;
+  --spacing-5: 1.25rem;
+  --spacing-6: 1.5rem;
+  --spacing-8: 2rem;
+  --spacing-10: 2.5rem;
+  --spacing-12: 3rem;
+  --spacing-16: 4rem;
+  --spacing-20: 5rem;
+  
+  /* Typography */
+  --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
+  --font-mono: 'JetBrains Mono', 'SF Mono', Monaco, monospace;
+  
+  /* Border Radius */
+  --radius-sm: 0.25rem;
+  --radius-md: 0.5rem;
+  --radius-lg: 0.75rem;
+  --radius-xl: 1rem;
+  --radius-2xl: 1.5rem;
+  --radius-full: 9999px;
+  
+  /* Shadows */
+  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
+  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1);
+  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1);
+  --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1);
+  
+  /* Transitions */
+  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
+  --transition-normal: 250ms cubic-bezier(0.4, 0, 0.2, 1);
+  --transition-slow: 350ms cubic-bezier(0.4, 0, 0.2, 1);
+}
+
+/* Semantic aliases for easier use */
+:root {
+  --color-primary: var(--color-primary-500);
+  --color-success: var(--color-success-500);
+  --color-warning: var(--color-warning-500);
+  --color-danger: var(--color-danger-500);
+  --color-border: var(--color-neutral-200);
+  --color-bg: var(--color-neutral-50);
+  --color-text: var(--color-neutral-900);
+  --color-text-secondary: var(--color-neutral-600);
+}
+
+/* Dark mode overrides */
+[data-theme="dark"] {
+  --color-primary: var(--color-primary-400);
+  --color-success: var(--color-success-400);
+  --color-warning: var(--color-warning-400);
+  --color-danger: var(--color-danger-400);
+  --color-border: var(--color-neutral-700);
+  --color-bg: var(--color-neutral-900);
+  --color-text: var(--color-neutral-100);
+  --color-text-secondary: var(--color-neutral-400);
+}
+
+/* Base styles */
+* {
+  box-sizing: border-box;
+}
+
+body {
+  font-family: var(--font-sans);
+  color: var(--color-text);
+  background: var(--color-bg);
+  margin: 0;
+  padding: 0;
+  line-height: 1.5;
+}
+
+/* Container utilities */
+.container {
+  width: 100%;
+  max-width: 1200px;
+  margin: 0 auto;
+  padding: 0 var(--spacing-4);
+}
+
+.container-sm {
+  max-width: 800px;
+}
+
+.container-lg {
+  max-width: 1400px;
+}
+
+/* Grid system */
+.grid {
+  display: grid;
+  gap: var(--spacing-4);
+}
+
+.grid-2 {
+  grid-template-columns: repeat(2, 1fr);
+}
+
+.grid-3 {
+  grid-template-columns: repeat(3, 1fr);
+}
+
+.grid-4 {
+  grid-template-columns: repeat(4, 1fr);
+}
+
+/* Flex utilities */
+.flex {
+  display: flex;
+}
+
+.flex-col {
+  flex-direction: column;
+}
+
+.items-center {
+  align-items: center;
+}
+
+.justify-between {
+  justify-content: space-between;
+}
+
+.justify-center {
+  justify-content: center;
+}
+
+.gap-2 {
+  gap: var(--spacing-2);
+}
+
+.gap-4 {
+  gap: var(--spacing-4);
+}
+
+.gap-6 {
+  gap: var(--spacing-6);
+}
+
+/* Card base styles */
+.card {
+  background: white;
+  border-radius: var(--radius-lg);
+  border: 1px solid var(--color-border);
+  padding: var(--spacing-6);
+  transition: box-shadow var(--transition-normal);
+}
+
+.card:hover {
+  box-shadow: var(--shadow-md);
+}
+
+.card-elevated {
+  box-shadow: var(--shadow-lg);
+  border: none;
+}
+
+.card-outlined {
+  border: 2px solid var(--color-primary);
+  background: transparent;
+}
+
+/* Button base styles */
+.btn {
+  display: inline-flex;
+  align-items: center;
+  justify-content: center;
+  padding: var(--spacing-2) var(--spacing-4);
+  border-radius: var(--radius-md);
+  font-weight: 500;
+  font-size: 0.875rem;
+  border: none;
+  cursor: pointer;
+  transition: all var(--transition-fast);
+  text-decoration: none;
+  gap: var(--spacing-2);
+}
+
+.btn:disabled {
+  opacity: 0.5;
+  cursor: not-allowed;
+}
+
+.btn-primary {
+  background: var(--color-primary);
+  color: white;
+}
+
+.btn-primary:hover:not(:disabled) {
+  background: var(--color-primary-600);
+}
+
+.btn-secondary {
+  background: var(--color-neutral-100);
+  color: var(--color-text);
+  border: 1px solid var(--color-border);
+}
+
+.btn-secondary:hover:not(:disabled) {
+  background: var(--color-neutral-200);
+}
+
+/* Typography utilities */
+.text-sm {
+  font-size: 0.875rem;
+}
+
+.text-base {
+  font-size: 1rem;
+}
+
+.text-lg {
+  font-size: 1.125rem;
+}
+
+.text-xl {
+  font-size: 1.25rem;
+}
+
+.text-2xl {
+  font-size: 1.5rem;
+}
+
+.font-medium {
+  font-weight: 500;
+}
+
+.font-semibold {
+  font-weight: 600;
+}
+
+.font-bold {
+  font-weight: 700;
+}
+
+.text-primary {
+  color: var(--color-primary);
+}
+
+.text-success {
+  color: var(--color-success);
+}
+
+.text-warning {
+  color: var(--color-warning);
+}
+
+.text-danger {
+  color: var(--color-danger);
+}
+
+.text-muted {
+  color: var(--color-text-secondary);
+}
+
+/* Utility classes for gradients */
+.gradient-primary {
+  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-700) 100%);
+}
+
+.gradient-success {
+  background: linear-gradient(135deg, var(--color-success) 0%, var(--color-success-700) 100%);
+}
+
+.gradient-warning {
+  background: linear-gradient(135deg, var(--color-warning) 0%, var(--color-warning-700) 100%);
+}
+
+/* Focus styles for accessibility */
+:focus {
+  outline: 2px solid var(--color-primary);
+  outline-offset: 2px;
+}
+
+:focus:not(:focus-visible) {
+  outline: none;
+}