/* ============================================
   STOCKGLIMPSE - MAIN STYLES
   Core variables, base styles, and utilities
   ============================================ */

/* CSS Custom Properties */
:root {
  /* Brand Colors */
  --brand-50: #f0f9ff;
  --brand-500: #0ea5e9;
  --brand-600: #0284c7;
  --brand-700: #0369a1;
  
  /* Indigo Accent */
  --indigo-600: #4f46e5;
  --indigo-700: #4338ca;
  
  /* Slate Grays */
  --slate-50: #f8fafc;
  --slate-100: #f1f5f9;
  --slate-200: #e2e8f0;
  --slate-300: #cbd5e1;
  --slate-400: #94a3b8;
  --slate-500: #64748b;
  --slate-600: #475569;
  --slate-700: #334155;
  --slate-800: #1e293b;
  --slate-900: #0f172a;
  
  /* Semantic Colors */
  --success: #10b981;
  --warning: #f59e0b;
  --error: #ef4444;
  --info: #3b82f6;
  
  /* Spacing */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  
  /* Border Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  
  /* 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);
  
  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 200ms ease;
  --transition-slow: 300ms ease;
}

/* Base Styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background-color: var(--slate-50);
  color: var(--slate-900);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.2;
}

/* Scrollbar Styling */
.key-scroll::-webkit-scrollbar {
  width: 4px;
}

.key-scroll::-webkit-scrollbar-thumb {
  background: var(--slate-300);
  border-radius: 2px;
}

.key-scroll::-webkit-scrollbar-thumb:hover {
  background: var(--slate-400);
}

/* Smooth Scrolling */
#scroll-container {
  scroll-behavior: smooth;
}

/* Focus Styles */
*:focus-visible {
  outline: 2px solid var(--brand-500);
  outline-offset: 2px;
}

/* Selection */
::selection {
  background-color: var(--brand-500);
  color: white;
}

/* Utility Classes */
.truncate {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

/* Responsive Utilities */
@media (max-width: 768px) {
  :root {
    --spacing-xl: 1.5rem;
  }
}