/**
 * Global Stylesheet
 * Comprehensive design system with tokens, animations, and utilities
 */

/* ============================================================================
   1. CSS VARIABLES (DESIGN TOKENS)
   ============================================================================ */

:root {
  /* Primary Colors - Violet/Purple Palette */
  --primary-50: #f5f3ff;
  --primary-100: #ede9fe;
  --primary-200: #ddd6fe;
  --primary-300: #c4b5fd;
  --primary-400: #a78bfa;
  --primary-500: #8b5cf6;
  --primary-600: #7c3aed;
  --primary-700: #6d28d9;
  --primary-800: #5b21b6;
  --primary-900: #4c1d95;
  --primary-950: #2e1065;

  /* Gray Scale - Neutrals */
  --gray-50: #f9fafb;
  --gray-100: #f3f4f6;
  --gray-200: #e5e7eb;
  --gray-300: #d1d5db;
  --gray-400: #9ca3af;
  --gray-500: #6b7280;
  --gray-600: #4b5563;
  --gray-700: #374151;
  --gray-800: #1f2937;
  --gray-900: #111827;
  --gray-950: #030712;

  /* Status Colors */
  --success-50: #f0fdf4;
  --success-100: #dcfce7;
  --success-500: #22c55e;
  --success-600: #16a34a;
  --success-700: #15803d;

  --warning-50: #fffbeb;
  --warning-100: #fef3c7;
  --warning-500: #eab308;
  --warning-600: #ca8a04;
  --warning-700: #a16207;

  --error-50: #fef2f2;
  --error-100: #fee2e2;
  --error-500: #ef4444;
  --error-600: #dc2626;
  --error-700: #b91c1c;

  --info-50: #eff6ff;
  --info-100: #dbeafe;
  --info-500: #3b82f6;
  --info-600: #2563eb;
  --info-700: #1d4ed8;

  /* Gradients */
  --gradient-primary: linear-gradient(135deg, #7c3aed 0%, #8b5cf6 50%, #a78bfa 100%);
  --gradient-primary-horizontal: linear-gradient(to right, #7c3aed, #8b5cf6, #a78bfa);
  --gradient-dark: linear-gradient(135deg, #1f2937 0%, #111827 100%);
  --gradient-success: linear-gradient(135deg, #22c55e 0%, #16a34a 100%);
  --gradient-purple-pink: linear-gradient(135deg, #8b5cf6 0%, #ec4899 100%);
  --gradient-shimmer: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);

  /* 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);
  --shadow-glow: 0 0 20px rgba(124, 58, 237, 0.4), 0 0 40px rgba(139, 92, 246, 0.2);
  --shadow-glow-lg: 0 0 30px rgba(124, 58, 237, 0.5), 0 0 60px rgba(139, 92, 246, 0.3);

  /* Spacing Scale */
  --space-1: 0.25rem;   /* 4px */
  --space-2: 0.5rem;    /* 8px */
  --space-3: 0.75rem;   /* 12px */
  --space-4: 1rem;      /* 16px */
  --space-5: 1.25rem;   /* 20px */
  --space-6: 1.5rem;    /* 24px */
  --space-8: 2rem;      /* 32px */
  --space-10: 2.5rem;   /* 40px */
  --space-12: 3rem;     /* 48px */
  --space-16: 4rem;     /* 64px */
  --space-20: 5rem;     /* 80px */
  --space-24: 6rem;     /* 96px */

  /* Border Radius Scale */
  --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-3xl: 1.5rem;   /* 24px */
  --radius-full: 9999px;

  /* Typography */
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --font-size-xs: 0.75rem;    /* 12px */
  --font-size-sm: 0.875rem;   /* 14px */
  --font-size-base: 1rem;     /* 16px */
  --font-size-lg: 1.125rem;   /* 18px */
  --font-size-xl: 1.25rem;    /* 20px */
  --font-size-2xl: 1.5rem;    /* 24px */
  --font-size-3xl: 1.875rem;  /* 30px */
  --font-size-4xl: 2.25rem;   /* 36px */
  --font-size-5xl: 3rem;      /* 48px */

  /* Transitions */
  --transition-fast: 150ms ease-in-out;
  --transition-base: 200ms ease-in-out;
  --transition-slow: 300ms ease-in-out;

  /* Z-Index Scale */
  --z-dropdown: 1000;
  --z-sticky: 1020;
  --z-fixed: 1030;
  --z-modal-backdrop: 1040;
  --z-modal: 1050;
  --z-popover: 1060;
  --z-tooltip: 1070;
  --z-loading: 9999;
}

/* ============================================================================
   2. BASE STYLES (Complementary to Tailwind - NOT overriding)
   ============================================================================ */

/* NOTE: Box-sizing, margin, padding resets are handled by Tailwind preflight */
/* NOTE: Body styles are set inline with Tailwind classes to avoid conflicts */

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ============================================================================
   3. ANIMATIONS
   ============================================================================ */

/* Fade In */
@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

/* Slide In */
@keyframes slideIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Slide In from Left */
@keyframes slideInLeft {
  from {
    opacity: 0;
    transform: translateX(-20px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

/* Slide In from Right */
@keyframes slideInRight {
  from {
    opacity: 0;
    transform: translateX(20px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

/* Spin */
@keyframes spin {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}

/* Shimmer - Skeleton Loader */
@keyframes shimmer {
  0% {
    background-position: -200% 0;
  }
  100% {
    background-position: 200% 0;
  }
}

/* Pulse Glow */
@keyframes pulse-glow {
  0%, 100% {
    box-shadow: 0 0 20px rgba(124, 58, 237, 0.4), 0 0 40px rgba(139, 92, 246, 0.2);
  }
  50% {
    box-shadow: 0 0 30px rgba(124, 58, 237, 0.6), 0 0 60px rgba(139, 92, 246, 0.4);
  }
}

/* Float */
@keyframes float {
  0%, 100% {
    transform: translateY(0px);
  }
  50% {
    transform: translateY(-20px);
  }
}

/* Scale In */
@keyframes scaleIn {
  from {
    opacity: 0;
    transform: scale(0.9);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

/* Bounce */
@keyframes bounce {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-10px);
  }
}

/* Pulse */
@keyframes pulse {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.5;
  }
}

/* ============================================================================
   4. PAGE LOADING OVERLAY
   ============================================================================ */

.page-loading-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, var(--primary-50) 0%, var(--primary-100) 100%);
  backdrop-filter: blur(8px);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  z-index: var(--z-loading);
  transition: opacity 0.3s ease-out, visibility 0.3s ease-out;
}

.page-loading-overlay.hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.page-loading-spinner {
  width: 48px;
  height: 48px;
  border: 4px solid var(--primary-200);
  border-top-color: var(--primary-600);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

.page-loading-spinner.gradient {
  border: 4px solid transparent;
  border-top: 4px solid var(--primary-600);
  border-right: 4px solid var(--primary-500);
  border-bottom: 4px solid var(--primary-400);
  border-left: 4px solid var(--primary-300);
}

.page-loading-text {
  margin-top: var(--space-4);
  color: var(--primary-600);
  font-size: var(--font-size-sm);
  font-weight: 500;
}

/* ============================================================================
   5. CUSTOM SCROLLBAR (Purple theme to match design system)
   ============================================================================ */

/* Webkit Browsers (Chrome, Safari, Edge) */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: var(--primary-50);
  border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb {
  background: var(--primary-300);
  border-radius: var(--radius-full);
  transition: background var(--transition-base);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--primary-400);
}

::-webkit-scrollbar-thumb:active {
  background: var(--primary-500);
}

/* Thin variant */
.scrollbar-thin::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}

/* Firefox */
* {
  scrollbar-width: thin;
  scrollbar-color: var(--primary-300) var(--primary-50);
}

/* ============================================================================
   6. UTILITY CLASSES
   ============================================================================ */

/* Animation Utilities */
.animate-fade-in {
  animation: fadeIn 0.3s ease-out;
}

.animate-slide-in {
  animation: slideIn 0.4s ease-out;
}

.animate-slide-in-left {
  animation: slideInLeft 0.4s ease-out;
}

.animate-slide-in-right {
  animation: slideInRight 0.4s ease-out;
}

.animate-pulse-glow {
  animation: pulse-glow 2s ease-in-out infinite;
}

.animate-float {
  animation: float 6s ease-in-out infinite;
}

.animate-spin {
  animation: spin 0.8s linear infinite;
}

.animate-scale-in {
  animation: scaleIn 0.3s ease-out;
}

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

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

/* Glassmorphism Effect */
.glass {
  background: rgba(255, 255, 255, 0.7);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.18);
}

.glass-dark {
  background: rgba(0, 0, 0, 0.3);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

/* Skeleton Loader */
.skeleton {
  background: var(--gradient-shimmer);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
  border-radius: var(--radius-md);
}

.skeleton-text {
  height: 1rem;
  margin-bottom: var(--space-2);
}

.skeleton-title {
  height: 1.5rem;
  margin-bottom: var(--space-3);
  width: 60%;
}

.skeleton-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
}

.skeleton-card {
  height: 200px;
  border-radius: var(--radius-lg);
}

/* Gradient Text */
.gradient-text {
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.gradient-text-purple-pink {
  background: var(--gradient-purple-pink);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Shadow Utilities */
.shadow-sm {
  box-shadow: var(--shadow-sm);
}

.shadow-md {
  box-shadow: var(--shadow-md);
}

.shadow-lg {
  box-shadow: var(--shadow-lg);
}

.shadow-xl {
  box-shadow: var(--shadow-xl);
}

.shadow-2xl {
  box-shadow: var(--shadow-2xl);
}

.shadow-glow {
  box-shadow: var(--shadow-glow);
}

.shadow-glow-lg {
  box-shadow: var(--shadow-glow-lg);
}

.shadow-none {
  box-shadow: none;
}

/* Hover Effects */
.hover-lift {
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.hover-lift:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.hover-glow {
  transition: box-shadow var(--transition-base);
}

.hover-glow:hover {
  box-shadow: var(--shadow-glow);
}

/* Border Utilities */
.border-gradient {
  position: relative;
  background-clip: padding-box;
  border: 2px solid transparent;
}

.border-gradient::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  z-index: -1;
  margin: -2px;
  border-radius: inherit;
  background: var(--gradient-primary);
}

/* Display Utilities */
/* NOTE: .hidden is NOT defined here - it conflicts with Tailwind's responsive classes like "hidden lg:block" */

.visible {
  visibility: visible;
}

.invisible {
  visibility: hidden;
}

/* Flex Utilities */
.flex {
  display: flex;
}

.inline-flex {
  display: inline-flex;
}

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

.flex-row {
  flex-direction: row;
}

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

.items-start {
  align-items: flex-start;
}

.items-end {
  align-items: flex-end;
}

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

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

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

.justify-start {
  justify-content: flex-start;
}

.justify-end {
  justify-content: flex-end;
}

.gap-1 {
  gap: var(--space-1);
}

.gap-2 {
  gap: var(--space-2);
}

.gap-3 {
  gap: var(--space-3);
}

.gap-4 {
  gap: var(--space-4);
}

.gap-6 {
  gap: var(--space-6);
}

.gap-8 {
  gap: var(--space-8);
}

/* Grid Utilities */
.grid {
  display: grid;
}

.grid-cols-2 {
  grid-template-columns: repeat(2, 1fr);
}

.grid-cols-3 {
  grid-template-columns: repeat(3, 1fr);
}

.grid-cols-4 {
  grid-template-columns: repeat(4, 1fr);
}

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

.text-left {
  text-align: left;
}

.text-right {
  text-align: right;
}

.font-bold {
  font-weight: 700;
}

.font-semibold {
  font-weight: 600;
}

.font-medium {
  font-weight: 500;
}

.font-normal {
  font-weight: 400;
}

.truncate {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* Overflow Utilities */
.overflow-hidden {
  overflow: hidden;
}

.overflow-auto {
  overflow: auto;
}

.overflow-scroll {
  overflow: scroll;
}

/* Position Utilities */
.relative {
  position: relative;
}

.absolute {
  position: absolute;
}

.fixed {
  position: fixed;
}

.sticky {
  position: sticky;
}

/* Transition Utilities */
.transition {
  transition: all var(--transition-base);
}

.transition-fast {
  transition: all var(--transition-fast);
}

.transition-slow {
  transition: all var(--transition-slow);
}

/* Cursor Utilities */
.cursor-pointer {
  cursor: pointer;
}

.cursor-not-allowed {
  cursor: not-allowed;
}

/* Opacity Utilities */
.opacity-0 {
  opacity: 0;
}

.opacity-50 {
  opacity: 0.5;
}

.opacity-75 {
  opacity: 0.75;
}

.opacity-100 {
  opacity: 1;
}

/* ============================================================================
   7. ALPINE.JS UTILITIES
   ============================================================================ */

/* NOTE: [x-cloak] is defined inline in each HTML file to avoid CSS load order issues */

/* ============================================================================
   8. RESPONSIVE UTILITIES
   ============================================================================ */

@media (max-width: 640px) {
  .sm\:hidden {
    display: none;
  }

  .sm\:block {
    display: block;
  }

  .sm\:flex {
    display: flex;
  }

  .sm\:grid-cols-1 {
    grid-template-columns: repeat(1, 1fr);
  }
}

@media (min-width: 768px) {
  .md\:block {
    display: block;
  }

  .md\:flex {
    display: flex;
  }

  .md\:grid-cols-2 {
    grid-template-columns: repeat(2, 1fr);
  }

  .md\:grid-cols-3 {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (min-width: 1024px) {
  .lg\:block {
    display: block;
  }

  .lg\:flex {
    display: flex;
  }

  .lg\:grid-cols-3 {
    grid-template-columns: repeat(3, 1fr);
  }

  .lg\:grid-cols-4 {
    grid-template-columns: repeat(4, 1fr);
  }
}

/* ============================================================================
   9. PRINT STYLES
   ============================================================================ */

@media print {
  .no-print {
    display: none !important;
  }

  .page-loading-overlay {
    display: none !important;
  }

  body {
    background: white;
  }
}