/* Modern Mobile-First Design System - Clean Refined Theme */

:root {
  --primary-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  --secondary-gradient: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
  --success-gradient: linear-gradient(135deg, #11998e 0%, #38ef7d 100%);
  --warning-gradient: linear-gradient(135deg, #ffa726 0%, #fb8c00 100%);
  --danger-gradient: linear-gradient(135deg, #ff5722 0%, #f44336 100%);
  
  --card-shadow: 0 8px 25px rgba(0,0,0,0.12);
  --card-shadow-hover: 0 15px 35px rgba(0,0,0,0.18);
  --border-radius: 16px;
  --border-radius-small: 8px;
  --spacing-xs: 4px;
  --spacing-sm: 8px;
  --spacing-md: 16px;
  --spacing-lg: 24px;
  --spacing-xl: 32px;
  --spacing-xxl: 48px;
  
  --text-primary: #2c3e50;
  --text-secondary: #5a6c7d;
  --text-light: #8492a6;
  --bg-light: #ffffff;
  --bg-card: #ffffff;
  --bg-surface: #f8fafc;
  --border-light: #e2e8f0;
  
  --primary: #667eea;
  --secondary: #4facfe;
  --success: #11998e;
  --warning: #ffa726;
  --danger: #ff5722;
  --white: #ffffff;
  --gray-50: #f8fafc;
  --gray-100: #f1f5f9;
  --gray-200: #e2e8f0;
  --gray-300: #cbd5e1;
  --gray-400: #94a3b8;
  --gray-500: #64748b;
  --gray-600: #475569;
  --gray-700: #334155;
  --gray-800: #1e293b;
  --gray-900: #0f172a;
  
  --rarity-common: #64748b;
  --rarity-uncommon: #11998e;
  --rarity-rare: #667eea;
  --rarity-ultra: #a855f7;
  --rarity-legendary: #f59e0b;
  --rarity-mythic: #ef4444;
}

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

body {
  margin: 0;
  padding: 0;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  background: var(--primary-gradient);
  overflow-x: hidden;
  min-height: 100vh;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  color: var(--text-primary);
}

#game-container {
  width: 100%;
  min-height: 100vh;
  position: relative;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  color: var(--text-primary);
  margin: 0;
  font-weight: 700;
  line-height: 1.2;
}

h1 { font-size: clamp(2rem, 5vw, 3rem); }
h2 { font-size: clamp(1.5rem, 4vw, 2.25rem); }
h3 { font-size: clamp(1.25rem, 3vw, 1.75rem); }
h4 { font-size: clamp(1.1rem, 2.5vw, 1.4rem); }

p {
  color: var(--text-secondary);
  margin: 0 0 var(--spacing-md) 0;
}

/* Modern Card Component */
.card {
  background: var(--bg-card);
  border-radius: var(--border-radius);
  box-shadow: var(--card-shadow);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  cursor: pointer;
  position: relative;
  overflow: hidden;
  border: 1px solid var(--border-light);
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(255, 255, 255, 0.3),
    transparent
  );
  transition: left 0.5s;
  pointer-events: none;
}

.card:hover {
  transform: translateY(-8px) scale(1.02);
  box-shadow: var(--card-shadow-hover);
}

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

.card:active {
  transform: translateY(-4px) scale(1.01);
  transition: all 0.15s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Modern Button System */
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-md) var(--spacing-lg);
  border: none;
  border-radius: var(--border-radius-small);
  font-size: 1rem;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
  min-height: 48px; /* Touch-friendly */
  user-select: none;
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.button::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  background: rgba(255, 255, 255, 0.2);
  border-radius: 50%;
  transform: translate(-50%, -50%);
  transition: width 0.6s, height 0.6s;
}

.button:active::before {
  width: 300px;
  height: 300px;
}

.button:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(0,0,0,0.15);
}

.button:active {
  transform: translateY(0);
}

.button:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none !important;
  box-shadow: none !important;
}

/* Button Variants */
.button-primary {
  background: var(--primary-gradient);
  color: white;
}

.button-secondary {
  background: var(--secondary-gradient);
  color: white;
}

.button-success {
  background: var(--success-gradient);
  color: white;
}

.button-warning {
  background: var(--warning-gradient);
  color: white;
}

.button-danger {
  background: var(--danger-gradient);
  color: white;
}

.button-ghost {
  background: transparent;
  color: var(--text-secondary);
  border: 2px solid var(--border-light);
  box-shadow: none;
}

.button-ghost:hover {
  border-color: var(--primary);
  color: var(--primary);
  background: rgba(102, 126, 234, 0.05);
}

/* Responsive Grid System */
.grid {
  display: grid;
  gap: var(--spacing-md);
}

.grid-auto {
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.grid-cards {
  display: grid;
  gap: var(--spacing-md);
  
  /* Mobile portrait: Single column */
  grid-template-columns: 1fr;
}

/* Progressive enhancement for larger screens */
@media (min-width: 480px) {
  .grid-cards {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 768px) {
  .grid-cards {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (min-width: 1024px) {
  .grid-cards {
    grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  }
}

/* Container System */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: var(--spacing-lg);
}

@media (max-width: 768px) {
  .container {
    padding: var(--spacing-md);
  }
}

@media (max-width: 480px) {
  .container {
    padding: var(--spacing-sm);
  }
}

.panel {
  background: var(--bg-card);
  border-radius: var(--border-radius);
  box-shadow: var(--card-shadow);
  overflow: hidden;
  border: 1px solid var(--border-light);
}

.panel-header {
  padding: var(--spacing-lg);
  border-bottom: 1px solid var(--border-light);
  background: linear-gradient(135deg, var(--gray-50) 0%, var(--white) 100%);
}

.panel-body {
  padding: var(--spacing-lg);
}

@media (max-width: 768px) {
  .panel-header,
  .panel-body {
    padding: var(--spacing-md);
  }
}

@media (max-width: 480px) {
  .panel-header,
  .panel-body {
    padding: var(--spacing-sm);
  }
}

/* Modal System */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(15, 23, 42, 0.8);
  backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: var(--spacing-lg);
  animation: modalFadeIn 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

@media (max-width: 480px) {
  .modal-overlay {
    padding: var(--spacing-sm);
  }
}

.modal {
  background: var(--bg-card);
  border-radius: var(--border-radius);
  box-shadow: 0 25px 50px rgba(0,0,0,0.25);
  max-width: 90vw;
  max-height: 90vh;
  overflow-y: auto;
  animation: modalSlideIn 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  border: 1px solid var(--border-light);
}

@keyframes modalFadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes modalSlideIn {
  from { 
    opacity: 0;
    transform: scale(0.9) translateY(20px);
  }
  to { 
    opacity: 1;
    transform: scale(1) translateY(0);
  }
}

/* Stats Display */
.stats-grid {
  display: grid;
  gap: var(--spacing-sm);
  
  /* Mobile first: single column */
  grid-template-columns: 1fr;
}

@media (min-width: 480px) {
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 768px) {
  .stats-grid {
    grid-template-columns: repeat(auto-fit, minmax(80px, 1fr));
  }
}

.stat-item {
  text-align: center;
  padding: var(--spacing-sm);
  background: var(--bg-surface);
  border-radius: var(--border-radius-small);
  transition: transform 0.2s ease;
  border: 1px solid var(--border-light);
}

.stat-item:hover {
  transform: translateY(-2px);
  border-color: var(--secondary);
  box-shadow: 0 4px 12px rgba(79, 172, 254, 0.15);
}

.stat-value {
  display: block;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary);
  line-height: 1;
}

.stat-label {
  display: block;
  font-size: 0.75rem;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-top: var(--spacing-xs);
}

/* Points Display */
.points-display {
  background: var(--secondary-gradient);
  color: white;
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: 25px;
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  box-shadow: var(--card-shadow);
  transition: transform 0.2s ease;
  font-size: 1.1rem;
}

.points-display:hover {
  transform: scale(1.05);
}

/* Rarity System */
.rarity-common { border-color: var(--rarity-common); }
.rarity-uncommon { border-color: var(--rarity-uncommon); }
.rarity-rare { border-color: var(--rarity-rare); }
.rarity-ultra { border-color: var(--rarity-ultra); }
.rarity-legendary { border-color: var(--rarity-legendary); }
.rarity-mythic { border-color: var(--rarity-mythic); }

/* Progress Bars */
.progress-container {
  width: 100%;
  height: 24px;
  background: var(--gray-200);
  border-radius: 12px;
  overflow: hidden;
  position: relative;
  border: 1px solid var(--border-light);
}

.progress-bar {
  height: 100%;
  background: var(--secondary-gradient);
  width: 0%;
  transition: width 0.5s ease;
  position: relative;
}

.progress-bar::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  bottom: 0;
  right: 0;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(255, 255, 255, 0.3),
    transparent
  );
  animation: progressShimmer 2s infinite;
}

@keyframes progressShimmer {
  0% { transform: translateX(-100%); }
  100% { transform: translateX(100%); }
}

.progress-text {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  color: var(--text-primary);
  font-weight: 600;
  font-size: 0.85rem;
  z-index: 2;
}

/* Game Status Indicators */
.game-status {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: 20px;
  font-size: 0.85rem;
  font-weight: 600;
  border: 2px solid;
}

.game-status-active {
  background: rgba(239, 68, 68, 0.1);
  border-color: var(--danger);
  color: var(--danger);
}

.game-status-available {
  background: rgba(17, 153, 142, 0.1);
  border-color: var(--success);
  color: var(--success);
}

.game-status-locked {
  background: rgba(100, 116, 139, 0.1);
  border-color: var(--rarity-common);
  color: var(--rarity-common);
}

/* Form Elements */
.form-group {
  margin-bottom: var(--spacing-md);
}

.form-label {
  display: block;
  margin-bottom: var(--spacing-sm);
  font-weight: 600;
  color: var(--text-primary);
}

.form-input,
.form-select {
  width: 100%;
  padding: var(--spacing-md);
  border: 2px solid var(--border-light);
  border-radius: var(--border-radius-small);
  font-size: 1rem;
  background: var(--bg-card);
  transition: border-color 0.2s ease;
  min-height: 48px; /* Touch-friendly */
  color: var(--text-primary);
}

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

/* Responsive Shop/Collection Layout */
.responsive-grid {
  display: grid;
  gap: var(--spacing-md);
  
  /* Mobile portrait: Single column */
  grid-template-columns: 1fr;
}

@media (min-width: 600px) {
  .responsive-grid {
    grid-template-columns: 1fr;
  }
}

@media (min-width: 768px) {
  .responsive-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .responsive-grid {
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  }
}

/* Shop Item Responsive Layout */
.shop-item {
  border: 2px solid var(--border-light);
  border-radius: var(--border-radius);
  padding: var(--spacing-lg);
  background: var(--bg-surface);
  transition: all 0.2s ease;
}

.shop-item:hover {
  border-color: var(--primary);
  transform: translateY(-2px);
}

.shop-item-content {
  display: flex;
  flex-direction: column;
  text-align: center;
  gap: var(--spacing-md);
}

@media (min-width: 768px) {
  .shop-item-content {
    flex-direction: row;
    text-align: left;
  }
}

.shop-item-info {
  flex: 1;
}

.shop-item-actions {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-sm);
  min-width: 120px;
}

/* Collection Controls Responsive */
.collection-controls {
  display: grid;
  gap: var(--spacing-md);
  align-items: end;
  
  /* Mobile: Single column */
  grid-template-columns: 1fr;
}

@media (min-width: 600px) {
  .collection-controls {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 768px) {
  .collection-controls {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* Quick Actions Responsive */
.quick-actions {
  display: grid;
  gap: var(--spacing-md);
  
  /* Mobile: Single column */
  grid-template-columns: 1fr;
}

@media (min-width: 600px) {
  .quick-actions {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* Main Actions Responsive */
.main-actions .button {
  width: 100%;
}

.action-grid {
  display: grid;
  gap: var(--spacing-md);
  
  /* Mobile: Single column */
  grid-template-columns: 1fr;
}

@media (min-width: 600px) {
  .action-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* Secondary Actions Responsive */
.secondary-actions {
  display: grid;
  gap: var(--spacing-sm);
  
  /* Mobile: Single column for readability */  
  grid-template-columns: 1fr;
}

@media (min-width: 480px) {
  .secondary-actions {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* Game Options Responsive */
.game-options-grid {
  display: grid;
  gap: var(--spacing-lg);
  
  /* Mobile portrait: Single column for readability */
  grid-template-columns: 1fr;
}

@media (min-width: 768px) {
  .game-options-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .game-options-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* Animations */
@keyframes bounce {
  0%, 20%, 50%, 80%, 100% {
    transform: translateY(0);
  }
  40% {
    transform: translateY(-10px);
  }
  60% {
    transform: translateY(-5px);
  }
}

@keyframes pulse {
  0%, 100% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.05);
  }
}

@keyframes shake {
  0%, 100% { transform: translateX(0); }
  25% { transform: translateX(-5px); }
  75% { transform: translateX(5px); }
}

@keyframes cardFlip {
  0% {
    transform: rotateY(0deg);
  }
  50% {
    transform: rotateY(90deg);
  }
  100% {
    transform: rotateY(0deg);
  }
}

@keyframes slideInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Utility Classes */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.d-flex { display: flex; }
.d-grid { display: grid; }
.d-none { display: none; }
.d-block { display: block; }

.align-items-center { align-items: center; }
.justify-content-center { justify-content: center; }
.justify-content-between { justify-content: space-between; }

.gap-sm { gap: var(--spacing-sm); }
.gap-md { gap: var(--spacing-md); }
.gap-lg { gap: var(--spacing-lg); }

.p-sm { padding: var(--spacing-sm); }
.p-md { padding: var(--spacing-md); }
.p-lg { padding: var(--spacing-lg); }

.m-sm { margin: var(--spacing-sm); }
.m-md { margin: var(--spacing-md); }
.m-lg { margin: var(--spacing-lg); }

.mb-sm { margin-bottom: var(--spacing-sm); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }

.mt-sm { margin-top: var(--spacing-sm); }
.mt-md { margin-top: var(--spacing-md); }
.mt-lg { margin-top: var(--spacing-lg); }

/* Loading States */
.loading {
  position: relative;
  opacity: 0.7;
  pointer-events: none;
}

.loading::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 20px;
  height: 20px;
  margin: -10px 0 0 -10px;
  border: 2px solid var(--gray-300);
  border-top: 2px solid var(--primary);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

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

/* Notification System */
.notification {
  position: fixed;
  top: var(--spacing-lg);
  right: var(--spacing-lg);
  background: var(--success-gradient);
  color: white;
  padding: var(--spacing-md) var(--spacing-lg);
  border-radius: var(--border-radius);
  box-shadow: var(--card-shadow);
  z-index: 2000;
  animation: slideInRight 0.3s ease;
  max-width: 300px;
}

@media (max-width: 480px) {
  .notification {
    top: var(--spacing-md);
    right: var(--spacing-md);
    left: var(--spacing-md);
    max-width: none;
  }
}

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

/* Clean Info Banner */
.info-banner {
  background: linear-gradient(135deg, var(--gray-50) 0%, var(--white) 100%);
  border: 2px solid var(--success);
  border-radius: var(--border-radius);
  padding: var(--spacing-md);
  color: var(--success);
  text-align: center;
  box-shadow: 0 2px 8px rgba(17, 153, 142, 0.1);
}

/* Card States */
.card-locked {
  opacity: 0.6;
  cursor: not-allowed;
  position: relative;
  pointer-events: none;
}

.card-locked::after {
  content: '🔒';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-size: 2rem;
  background: rgba(0,0,0,0.8);
  color: white;
  border-radius: 50%;
  width: 50px;
  height: 50px;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2;
}

/* Mobile-Optimized Text Sizes */
@media (max-width: 480px) {
  h1 { font-size: 1.75rem; }
  h2 { font-size: 1.5rem; }
  h3 { font-size: 1.25rem; }
  
  .button {
    padding: var(--spacing-md) var(--spacing-md);
    font-size: 0.9rem;
  }
  
  .points-display {
    font-size: 1rem;
  }
  
  .stat-value {
    font-size: 1.25rem;
  }
}

/* Safe area for notched devices */
@supports (padding: max(0px)) {
  body {
    padding-left: max(12px, env(safe-area-inset-left));
    padding-right: max(12px, env(safe-area-inset-right));
  }
}

/* High contrast mode support */
@media (prefers-contrast: high) {
  :root {
    --border-light: var(--gray-800);
    --text-secondary: var(--gray-800);
  }
  
  .card {
    border: 2px solid var(--gray-800);
  }
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* Add at the end of the file */

/* Prevent horizontal scrolling globally */
html, body {
  overflow-x: hidden;
  width: 100%;
}

/* Ensure all containers respect viewport */
* {
  max-width: 100%;
  box-sizing: border-box;
}

/* Fix any grid containers that might overflow */
.grid, .grid-cards, .grid-auto {
  width: 100%;
  overflow: hidden;
}

/* Responsive container improvements */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: var(--spacing-md);
  box-sizing: border-box;
}

@media (max-width: 768px) {
  .container {
    padding: var(--spacing-sm);
  }
}

@media (max-width: 480px) {
  .container {
    padding: 10px;
  }
}

/* Ensure cards never exceed their containers */
.card, .game-card {
  max-width: 200px;
  width: 100%;
}

/* Fix modal centering on mobile */
.modal {
  max-width: 95vw;
  max-height: 95vh;
  overflow-y: auto;
  margin: 20px;
}

.modal-overlay {
  padding: 20px;
  box-sizing: border-box;
}

@media (max-width: 480px) {
  .modal {
    margin: 10px;
    max-width: calc(100vw - 20px);
  }
  
  .modal-overlay {
    padding: 10px;
  }
}