/* 
 * WheelUI - Custom Styling Framework
 * A modern, responsive design system for interactive applications
 */

:root {
  /* Color Palette */
  --primary-50: #f0f4ff;
  --primary-100: #e0e9ff;
  --primary-200: #c7d7fe;
  --primary-300: #a5bbfc;
  --primary-400: #8395f8;
  --primary-500: #667eea;
  --primary-600: #5a67d8;
  --primary-700: #4c51bf;
  --primary-800: #434190;
  --primary-900: #3c366b;

  --secondary-50: #fdf4ff;
  --secondary-100: #fae8ff;
  --secondary-200: #f5d0fe;
  --secondary-300: #f0abfc;
  --secondary-400: #e879f9;
  --secondary-500: #d946ef;
  --secondary-600: #c026d3;
  --secondary-700: #a21caf;
  --secondary-800: #86198f;
  --secondary-900: #701a75;

  --success-50: #f0fdf4;
  --success-100: #dcfce7;
  --success-200: #bbf7d0;
  --success-300: #86efac;
  --success-400: #4ade80;
  --success-500: #22c55e;
  --success-600: #16a34a;
  --success-700: #15803d;
  --success-800: #166534;
  --success-900: #14532d;

  --danger-50: #fef2f2;
  --danger-100: #fee2e2;
  --danger-200: #fecaca;
  --danger-300: #fca5a5;
  --danger-400: #f87171;
  --danger-500: #ef4444;
  --danger-600: #dc2626;
  --danger-700: #b91c1c;
  --danger-800: #991b1b;
  --danger-900: #7f1d1d;

  --warning-50: #fffbeb;
  --warning-100: #fef3c7;
  --warning-200: #fde68a;
  --warning-300: #fcd34d;
  --warning-400: #fbbf24;
  --warning-500: #f59e0b;
  --warning-600: #d97706;
  --warning-700: #b45309;
  --warning-800: #92400e;
  --warning-900: #78350f;

  --neutral-50: #f9fafb;
  --neutral-100: #f3f4f6;
  --neutral-200: #e5e7eb;
  --neutral-300: #d1d5db;
  --neutral-400: #9ca3af;
  --neutral-500: #6b7280;
  --neutral-600: #4b5563;
  --neutral-700: #374151;
  --neutral-800: #1f2937;
  --neutral-900: #111827;

  /* Spacing Scale */
  --space-xs: 0.25rem;    /* 4px */
  --space-sm: 0.5rem;     /* 8px */
  --space-md: 0.75rem;    /* 12px */
  --space-lg: 1rem;       /* 16px */
  --space-xl: 1.5rem;     /* 24px */
  --space-2xl: 2rem;      /* 32px */
  --space-3xl: 3rem;      /* 48px */
  --space-4xl: 4rem;      /* 64px */
  --space-5xl: 6rem;      /* 96px */

  /* Typography Scale */
  --text-xs: 0.75rem;     /* 12px */
  --text-sm: 0.875rem;    /* 14px */
  --text-md: 1rem;        /* 16px */
  --text-lg: 1.125rem;    /* 18px */
  --text-xl: 1.25rem;     /* 20px */
  --text-2xl: 1.5rem;     /* 24px */
  --text-3xl: 1.875rem;   /* 30px */
  --text-4xl: 2.25rem;    /* 36px */
  --text-5xl: 3rem;       /* 48px */

  /* Border Radius */
  --radius-sm: 0.25rem;   /* 4px */
  --radius-md: 0.375rem;  /* 6px */
  --radius-lg: 0.5rem;    /* 8px */
  --radius-xl: 0.75rem;   /* 12px */
  --radius-2xl: 1rem;     /* 16px */
  --radius-full: 9999px;

  /* 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);
  --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);

  /* Transitions */
  --transition-fast: 150ms ease-in-out;
  --transition-normal: 250ms ease-in-out;
  --transition-slow: 350ms ease-in-out;

  /* Z-index Scale */
  --z-dropdown: 1000;
  --z-sticky: 1020;
  --z-fixed: 1030;
  --z-modal: 1040;
  --z-popover: 1050;
  --z-tooltip: 1060;
  --z-toast: 1070;
}

/* Reset and Base Styles */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  line-height: 1.5;
  -webkit-text-size-adjust: 100%;
  font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif;
}

body {
  margin: 0;
  line-height: inherit;
}

/* Component: Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-lg);
  border: 1px solid transparent;
  padding: var(--space-sm) var(--space-lg);
  font-size: var(--text-md);
  font-weight: 500;
  line-height: 1.5;
  text-decoration: none;
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
  user-select: none;
  position: relative;
  overflow: hidden;
}

.btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
  transition: left var(--transition-normal);
}

.btn:hover::before {
  left: 100%;
}

/* Button Variants */
.btn-primary {
  background: linear-gradient(135deg, var(--primary-500), var(--primary-600));
  color: white;
  box-shadow: var(--shadow-md);
}

.btn-primary:hover {
  background: linear-gradient(135deg, var(--primary-600), var(--primary-700));
  transform: translateY(-1px);
  box-shadow: var(--shadow-lg);
}

.btn-secondary {
  background: linear-gradient(135deg, var(--secondary-500), var(--secondary-600));
  color: white;
  box-shadow: var(--shadow-md);
}

.btn-secondary:hover {
  background: linear-gradient(135deg, var(--secondary-600), var(--secondary-700));
  transform: translateY(-1px);
  box-shadow: var(--shadow-lg);
}

.btn-success {
  background: linear-gradient(135deg, var(--success-500), var(--success-600));
  color: white;
  box-shadow: var(--shadow-md);
}

.btn-success:hover {
  background: linear-gradient(135deg, var(--success-600), var(--success-700));
  transform: translateY(-1px);
  box-shadow: var(--shadow-lg);
}

.btn-danger {
  background: linear-gradient(135deg, var(--danger-500), var(--danger-600));
  color: white;
  box-shadow: var(--shadow-md);
}

.btn-danger:hover {
  background: linear-gradient(135deg, var(--danger-600), var(--danger-700));
  transform: translateY(-1px);
  box-shadow: var(--shadow-lg);
}

.btn-info {
  background: linear-gradient(135deg, #0ea5e9, #0284c7);
  color: white;
  box-shadow: var(--shadow-md);
}

.btn-info:hover {
  background: linear-gradient(135deg, #0284c7, #0369a1);
  transform: translateY(-1px);
  box-shadow: var(--shadow-lg);
}

.btn-purple {
  background: linear-gradient(135deg, #8b5cf6, #7c3aed);
  color: white;
  box-shadow: var(--shadow-md);
}

.btn-purple:hover {
  background: linear-gradient(135deg, #7c3aed, #6d28d9);
  transform: translateY(-1px);
  box-shadow: var(--shadow-lg);
}

.btn-bright-pink {
  background: linear-gradient(135deg, #ff6b9d, #e91e63);
  color: white;
  box-shadow: var(--shadow-md);
}

.btn-bright-pink:hover {
  background: linear-gradient(135deg, #e91e63, #c2185b);
  transform: translateY(-1px);
  box-shadow: var(--shadow-lg);
}

.btn-bright-teal {
  background: linear-gradient(135deg, #26d0ce, #1abc9c);
  color: white;
  box-shadow: var(--shadow-md);
}

.btn-bright-teal:hover {
  background: linear-gradient(135deg, #1abc9c, #16a085);
  transform: translateY(-1px);
  box-shadow: var(--shadow-lg);
}

.btn-bright-orange {
  background: linear-gradient(135deg, #ff6b35, #ff8c42);
  color: white;
  box-shadow: var(--shadow-md);
}

.btn-bright-orange:hover {
  background: linear-gradient(135deg, #ff8c42, #ff5722);
  transform: translateY(-1px);
  box-shadow: var(--shadow-lg);
}

.btn-outline {
  background: transparent;
  border: 2px solid var(--primary-500);
  color: var(--primary-600);
}

.btn-outline:hover {
  background: var(--primary-500);
  color: white;
}

.btn-ghost {
  background: transparent;
  color: var(--neutral-600);
}

.btn-ghost:hover {
  background: var(--neutral-100);
  color: var(--neutral-800);
}

/* Button Sizes */
.btn-sm {
  padding: var(--space-xs) var(--space-md);
  font-size: var(--text-sm);
}

.btn-lg {
  padding: var(--space-md) var(--space-xl);
  font-size: var(--text-lg);
}

.btn-xl {
  padding: var(--space-lg) var(--space-2xl);
  font-size: var(--text-xl);
}

/* Component: Cards */
.card {
  background: white;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  transition: all var(--transition-normal);
}

.card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-xl);
}

.card-header {
  padding: var(--space-xl);
  border-bottom: 1px solid var(--neutral-200);
}

.card-body {
  padding: var(--space-xl);
}

.card-footer {
  padding: var(--space-xl);
  border-top: 1px solid var(--neutral-200);
  background: var(--neutral-50);
}

/* Component: Form Controls */
.form-control {
  display: block;
  width: 100%;
  padding: var(--space-md) var(--space-lg);
  font-size: var(--text-md);
  line-height: 1.5;
  color: var(--neutral-700);
  background: white;
  border: 2px solid var(--neutral-300);
  border-radius: var(--radius-lg);
  transition: all var(--transition-fast);
}

.form-control:focus {
  outline: none;
  border-color: var(--primary-500);
  box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.form-control::placeholder {
  color: var(--neutral-400);
}

/* Component: Range Slider */
.range-slider {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 8px;
  border-radius: var(--radius-full);
  background: linear-gradient(to right, var(--neutral-200), var(--primary-500));
  outline: none;
  cursor: pointer;
}

.range-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary-500), var(--primary-600));
  cursor: pointer;
  border: 3px solid white;
  box-shadow: var(--shadow-md);
  transition: all var(--transition-fast);
}

.range-slider::-webkit-slider-thumb:hover {
  transform: scale(1.1);
  box-shadow: var(--shadow-lg);
}

.range-slider::-moz-range-thumb {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary-500), var(--primary-600));
  cursor: pointer;
  border: 3px solid white;
  box-shadow: var(--shadow-md);
  transition: all var(--transition-fast);
}

/* Component: Badges */
.badge {
  display: inline-flex;
  align-items: center;
  padding: var(--space-xs) var(--space-md);
  font-size: var(--text-sm);
  font-weight: 500;
  border-radius: var(--radius-full);
}

.badge-primary {
  background: var(--primary-100);
  color: var(--primary-800);
}

.badge-success {
  background: var(--success-100);
  color: var(--success-800);
}

.badge-warning {
  background: var(--warning-100);
  color: var(--warning-800);
}

.badge-danger {
  background: var(--danger-100);
  color: var(--danger-800);
}

/* Utility Classes */
.glass {
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.glow {
  box-shadow: 0 0 20px rgba(102, 126, 234, 0.4);
}

.glow-success {
  box-shadow: 0 0 20px rgba(34, 197, 94, 0.4);
}

.glow-danger {
  box-shadow: 0 0 20px rgba(239, 68, 68, 0.4);
}

.gradient-primary {
  background: linear-gradient(135deg, var(--primary-500), var(--primary-700));
}

.gradient-secondary {
  background: linear-gradient(135deg, var(--secondary-500), var(--secondary-700));
}

.gradient-sunset {
  background: linear-gradient(135deg, #ff6b6b, #ffa726, #ffeb3b);
}

.gradient-ocean {
  background: linear-gradient(135deg, #667eea, #764ba2);
}

.gradient-forest {
  background: linear-gradient(135deg, #134e5e, #71b280);
}

/* Animation Utilities */
.animate-pulse {
  animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

.animate-bounce {
  animation: bounce 1s infinite;
}

.animate-spin {
  animation: spin 1s linear infinite;
}

.animate-ping {
  animation: ping 1s cubic-bezier(0, 0, 0.2, 1) infinite;
}

@keyframes pulse {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: .5;
  }
}

@keyframes bounce {
  0%, 100% {
    transform: translateY(-25%);
    animation-timing-function: cubic-bezier(0.8, 0, 1, 1);
  }
  50% {
    transform: none;
    animation-timing-function: cubic-bezier(0, 0, 0.2, 1);
  }
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

@keyframes ping {
  75%, 100% {
    transform: scale(2);
    opacity: 0;
  }
}

/* Responsive Design */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

.grid {
  display: grid;
  gap: var(--space-lg);
}

.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 {
  display: flex;
}

.flex-col {
  flex-direction: column;
}

.items-center {
  align-items: center;
}

.justify-center {
  justify-content: center;
}

.justify-between {
  justify-content: space-between;
}

.gap-sm {
  gap: var(--space-sm);
}

.gap-md {
  gap: var(--space-md);
}

.gap-lg {
  gap: var(--space-lg);
}

.gap-xl {
  gap: var(--space-xl);
}

/* Spacing Utilities */
.p-sm { padding: var(--space-sm); }
.p-md { padding: var(--space-md); }
.p-lg { padding: var(--space-lg); }
.p-xl { padding: var(--space-xl); }
.p-2xl { padding: var(--space-2xl); }

.m-sm { margin: var(--space-sm); }
.m-md { margin: var(--space-md); }
.m-lg { margin: var(--space-lg); }
.m-xl { margin: var(--space-xl); }
.m-2xl { margin: var(--space-2xl); }

/* Text Utilities */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.text-xs { font-size: var(--text-xs); }
.text-sm { font-size: var(--text-sm); }
.text-md { font-size: var(--text-md); }
.text-lg { font-size: var(--text-lg); }
.text-xl { font-size: var(--text-xl); }
.text-2xl { font-size: var(--text-2xl); }
.text-3xl { font-size: var(--text-3xl); }
.text-4xl { font-size: var(--text-4xl); }
.text-5xl { font-size: var(--text-5xl); }

.font-light { font-weight: 300; }
.font-normal { font-weight: 400; }
.font-medium { font-weight: 500; }
.font-semibold { font-weight: 600; }
.font-bold { font-weight: 700; }

/* Color Utilities */
.text-primary { color: var(--primary-600); }
.text-secondary { color: var(--secondary-600); }
.text-success { color: var(--success-600); }
.text-danger { color: var(--danger-600); }
.text-warning { color: var(--warning-600); }
.text-neutral { color: var(--neutral-600); }

.bg-primary { background-color: var(--primary-500); }
.bg-secondary { background-color: var(--secondary-500); }
.bg-success { background-color: var(--success-500); }
.bg-danger { background-color: var(--danger-500); }
.bg-warning { background-color: var(--warning-500); }
.bg-neutral { background-color: var(--neutral-100); }

/* Responsive Utilities */
@media (max-width: 768px) {
  .grid-2,
  .grid-3,
  .grid-4 {
    grid-template-columns: 1fr;
  }
  
  .container {
    padding: 0 var(--space-md);
  }
  
  .btn {
    padding: var(--space-md) var(--space-lg);
  }
}

@media (max-width: 480px) {
  .text-4xl { font-size: var(--text-2xl); }
  .text-5xl { font-size: var(--text-3xl); }
  
  .p-xl { padding: var(--space-lg); }
  .p-2xl { padding: var(--space-xl); }
}