/* Can't Stop Coding Base Styles */
/* Reset and base styling for the Can't Stop Coding platform */

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

:root {
  /* Color System */
  --background: 0 0% 100%;
  --foreground: 222.2 84% 4.9%;
  --card: 0 0% 100%;
  --card-foreground: 222.2 84% 4.9%;
  --primary: 221.2 83.2% 53.3%;
  --primary-foreground: 210 40% 98%;
  --secondary: 210 40% 96%;
  --secondary-foreground: 222.2 84% 4.9%;
  --muted: 210 40% 96%;
  --muted-foreground: 215.4 16.3% 46.9%;
  --accent: 210 40% 96%;
  --accent-foreground: 222.2 84% 4.9%;
  --destructive: 0 84.2% 60.2%;
  --destructive-foreground: 210 40% 98%;
  --border: 214.3 31.8% 91.4%;
  --input: 214.3 31.8% 91.4%;
  --ring: 221.2 83.2% 53.3%;
  --radius: 0.75rem;
  
  /* Spacing */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;
  
  /* Typography */
  --font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-mono: "JetBrains Mono", "Fira Code", "Consolas", monospace;
  
  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

[data-theme="dark"] {
  --background: 222.2 84% 4.9%;
  --foreground: 210 40% 98%;
  --card: 222.2 84% 4.9%;
  --card-foreground: 210 40% 98%;
  --primary: 217.2 91.2% 59.8%;
  --primary-foreground: 222.2 84% 4.9%;
  --secondary: 217.2 32.6% 17.5%;
  --secondary-foreground: 210 40% 98%;
  --muted: 217.2 32.6% 17.5%;
  --muted-foreground: 215 20.2% 65.1%;
  --accent: 217.2 32.6% 17.5%;
  --accent-foreground: 210 40% 98%;
  --destructive: 0 62.8% 30.6%;
  --destructive-foreground: 210 40% 98%;
  --border: 217.2 32.6% 17.5%;
  --input: 217.2 32.6% 17.5%;
  --ring: 224.3 76.3% 94.1%;
}

/* Base Styles */
html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  background: hsl(var(--background));
  color: hsl(var(--foreground));
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  line-height: 1.2;
  margin-bottom: var(--spacing-md);
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }
h5 { font-size: 1.125rem; }
h6 { font-size: 1rem; }

p {
  margin-bottom: var(--spacing-md);
  color: hsl(var(--muted-foreground));
}

a {
  color: hsl(var(--primary));
  text-decoration: none;
  transition: color 0.2s ease;
}

a:hover {
  color: hsl(var(--primary) / 0.8);
}

/* Layout */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.main-content {
  min-height: calc(100vh - 80px);
}

/* Loading Spinner */
.loading-spinner {
  position: fixed;
  inset: 0;
  z-index: 1000;
  background: rgba(0, 0, 0, 0.5);
  display: none;
  align-items: center;
  justify-content: center;
}

.loading-spinner.show {
  display: flex;
}

.spinner {
  width: 40px;
  height: 40px;
  border: 4px solid hsl(var(--muted));
  border-top: 4px solid hsl(var(--primary));
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

/* Toast Notifications */
.toast-container {
  position: fixed;
  top: var(--spacing-md);
  right: var(--spacing-md);
  z-index: 1000;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.toast {
  background: hsl(var(--card));
  border: 1px solid hsl(var(--border));
  border-radius: var(--radius);
  padding: var(--spacing-md);
  box-shadow: var(--shadow-lg);
  min-width: 300px;
  animation: toastIn 0.3s ease-out;
}

.toast.success {
  border-left: 4px solid #22c55e;
}

.toast.error {
  border-left: 4px solid #ef4444;
}

.toast.warning {
  border-left: 4px solid #eab308;
}

@keyframes toastIn {
  from {
    opacity: 0;
    transform: translateX(100%);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

/* Responsive Design */
@media (max-width: 768px) {
  .container {
    padding: 0 var(--spacing-sm);
  }
  
  h1 { font-size: 2rem; }
  h2 { font-size: 1.75rem; }
  h3 { font-size: 1.25rem; }
  
  .toast-container {
    left: var(--spacing-sm);
    right: var(--spacing-sm);
  }
  
  .toast {
    min-width: auto;
  }
}

@media (max-width: 480px) {
  h1 { font-size: 1.75rem; }
  h2 { font-size: 1.5rem; }
  h3 { font-size: 1.125rem; }
}

/* Focus Styles */
*:focus {
  outline: 2px solid hsl(var(--ring));
  outline-offset: 2px;
}

/* Selection Styles */
::selection {
  background: hsl(var(--primary) / 0.2);
  color: hsl(var(--foreground));
}

/* Scrollbar Styles */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: hsl(var(--muted));
}

::-webkit-scrollbar-thumb {
  background: hsl(var(--muted-foreground) / 0.3);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: hsl(var(--muted-foreground) / 0.5);
}

/* Print Styles */
@media print {
  .navbar,
  .footer,
  .toast-container,
  .loading-spinner {
    display: none !important;
  }
  
  body {
    background: white !important;
    color: black !important;
  }
}