:root {
  /* Colors */
  --primary-bg: #e8e8e8;
  --secondary-bg: #e0e0e0;
  --tertiary-bg: #d6d6d6;
  
  --card-bg: #fcfcfc;
  --glass-bg: rgba(255, 255, 255, 0.9);
  
  --primary-text: #1a1a1a;
  --secondary-text: #6e6e73;
  --tertiary-text: #48484a;
  
  --accent-blue: #007aff;
  --accent-green: #28cd41;
  --accent-red: #ff3b30;
  --accent-orange: #ff9500;
  --accent-purple: #af52de;
  
  --border-light: rgba(0, 0, 0, 0.04);
  --border-medium: rgba(0, 0, 0, 0.08);
  --border-strong: rgba(0, 0, 0, 0.12);
  
  --shadow-light: 0 1px 3px rgba(0, 0, 0, 0.04);
  --shadow-medium: 0 4px 16px rgba(0, 0, 0, 0.08);
  --shadow-strong: 0 8px 32px rgba(0, 0, 0, 0.12);
  --shadow-floating: 0 16px 64px rgba(0, 0, 0, 0.16);
  
  /* Typography */
  --font-system: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 1.875rem;
  --font-size-4xl: 2.25rem;
  
  /* Spacing */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 0.75rem;
  --spacing-lg: 1rem;
  --spacing-xl: 1.5rem;
  --spacing-2xl: 2rem;
  --spacing-3xl: 3rem;
  
  /* Border Radius */
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 50px;
  
  /* Transitions */
  --transition-fast: 0.15s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-medium: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

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

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

body {
  font-family: var(--font-system);
  font-size: var(--font-size-base);
  line-height: 1.6;
  color: var(--primary-text);
  background: var(--primary-bg);
  background-image: 
    radial-gradient(circle at 20% 20%, rgba(0, 122, 255, 0.03) 0%, transparent 40%),
    radial-gradient(circle at 80% 80%, rgba(175, 82, 222, 0.03) 0%, transparent 40%);
  min-height: 100vh;
  overflow-x: hidden;
}

/* Header Styles */
.header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(251, 251, 253, 0.8);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-light);
  transition: var(--transition-medium);
}

.header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-lg);
  max-width: 1200px;
  margin: 0 auto;
}

.logo {
  font-size: var(--font-size-2xl);
  font-weight: 700;
  color: var(--primary-text);
  background: linear-gradient(135deg, var(--accent-blue), var(--accent-purple));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.nav {
  display: flex;
  align-items: center;
  gap: var(--spacing-2xl);
}

.nav-collapse {
  display: flex;
  align-items: center;
  gap: var(--spacing-2xl);
}

.nav-links {
  display: flex;
  gap: var(--spacing-xl);
}

.nav-link {
  position: relative;
  text-decoration: none;
  color: var(--secondary-text);
  font-weight: 500;
  padding: var(--spacing-sm) var(--spacing-lg);
  border-radius: var(--radius-full);
  transition: var(--transition-medium);
  overflow: hidden;
}

.nav-link::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--accent-blue);
  opacity: 0;
  border-radius: var(--radius-full);
  transition: var(--transition-medium);
  z-index: -1;
}

.nav-link:hover {
  color: white;
  transform: translateY(-1px);
}

.nav-link:hover::before {
  opacity: 1;
}

.menu-toggle {
  display: none;
  background: none;
  border: none;
  font-size: var(--font-size-lg);
  color: var(--primary-text);
  cursor: pointer;
  padding: var(--spacing-sm);
  border-radius: var(--radius-sm);
  transition: var(--transition-fast);
}

.menu-toggle:hover {
  background: var(--tertiary-bg);
}

/* Language Selector */
.language-select {
  position: absolute;
  top: var(--spacing-lg);
  right: var(--spacing-xl);
  background: var(--card-bg);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-sm);
  padding: var(--spacing-xs) var(--spacing-sm);
  font-size: var(--font-size-sm);
  color: var(--primary-text);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  transition: var(--transition-fast);
}

.language-select:focus {
  outline: none;
  border-color: var(--accent-blue);
  box-shadow: 0 0 0 3px rgba(0, 122, 255, 0.1);
}

/* Authentication Section */
.auth-section {
  display: flex;
  align-items: center;
  gap: var(--spacing-lg);
}

.auth-buttons {
  display: flex;
  gap: var(--spacing-sm);
}

.user-info {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  padding: var(--spacing-sm) var(--spacing-lg);
  background: var(--card-bg);
  border-radius: var(--radius-full);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid var(--border-light);
}

.username {
  font-weight: 600;
  color: var(--primary-text);
}

.binding-info {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  font-size: var(--font-size-sm);
  color: var(--secondary-text);
}

.minecraft-name {
  font-weight: 500;
  color: var(--accent-green);
}

/* Button Styles */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-xs);
  font-family: inherit;
  font-size: var(--font-size-sm);
  font-weight: 600;
  text-decoration: none;
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: var(--transition-medium);
  position: relative;
  overflow: hidden;
  white-space: nowrap;
  user-select: none;
  padding: var(--spacing-md) var(--spacing-xl);
  min-height: 44px;
}

.btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.1), rgba(255, 255, 255, 0));
  opacity: 0;
  transition: var(--transition-fast);
}

.btn:hover::before {
  opacity: 1;
}

.btn:active {
  transform: scale(0.98);
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent-blue), #0051d5);
  color: white;
  box-shadow: var(--shadow-light);
}

.btn-primary:hover {
  box-shadow: var(--shadow-medium);
  transform: translateY(-1px);
}

.btn-secondary {
  background: var(--secondary-bg);
  color: var(--primary-text);
  border: 1px solid var(--border-medium);
  box-shadow: var(--shadow-light);
}

.btn-secondary:hover {
  background: var(--tertiary-bg);
  box-shadow: var(--shadow-medium);
}

.btn-outline {
  background: transparent;
  color: var(--accent-blue);
  border: 2px solid var(--accent-blue);
}

.btn-outline:hover {
  background: var(--accent-blue);
  color: white;
}

.btn-danger {
  background: linear-gradient(135deg, var(--accent-red), #d32f2f);
  color: white;
  box-shadow: var(--shadow-light);
}

.btn-danger:hover {
  box-shadow: var(--shadow-medium);
  transform: translateY(-1px);
}

.btn-sm {
  padding: var(--spacing-sm) var(--spacing-md);
  font-size: var(--font-size-xs);
  min-height: 32px;
  border-radius: var(--radius-sm);
}

.btn-block {
  width: 100%;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none !important;
}

/* Main Content */
.main {
  flex: 1;
  padding: var(--spacing-2xl) 0;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-xl);
}

/* Page Styles */
.page {
  display: none;
  animation: fadeIn 0.4s ease-out;
}

.page.active {
  display: block;
}

.page h2 {
  font-size: var(--font-size-3xl);
  font-weight: 700;
  color: var(--primary-text);
  margin-bottom: var(--spacing-2xl);
  text-align: center;
}

/* Search Section */
.search-section {
  background: var(--card-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-radius: var(--radius-xl);
  padding: var(--spacing-2xl);
  margin-bottom: var(--spacing-2xl);
  box-shadow: var(--shadow-medium);
  border: 1px solid var(--border-light);
}

.search-bar {
  display: flex;
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-xl);
}

.search-input {
  flex: 1;
  padding: var(--spacing-lg);
  border: 2px solid var(--border-light);
  border-radius: var(--radius-md);
  font-size: var(--font-size-base);
  background: var(--secondary-bg);
  color: var(--primary-text);
  transition: var(--transition-medium);
}

.search-input:focus {
  outline: none;
  border-color: var(--accent-blue);
  box-shadow: 0 0 0 4px rgba(0, 122, 255, 0.1);
}

.filters {
  display: flex;
  gap: var(--spacing-lg);
  flex-wrap: wrap;
  align-items: center;
}

.filter-select {
  padding: var(--spacing-md) var(--spacing-lg);
  border: 2px solid var(--border-light);
  border-radius: var(--radius-md);
  background: var(--secondary-bg);
  color: var(--primary-text);
  font-size: var(--font-size-sm);
  min-width: 150px;
  transition: var(--transition-medium);
}

.filter-select:focus {
  outline: none;
  border-color: var(--accent-blue);
  box-shadow: 0 0 0 4px rgba(0, 122, 255, 0.1);
}

/* Market Items Grid */
.items-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: var(--spacing-xl);
  margin-bottom: var(--spacing-2xl);
}

/* Market Item Card */
.market-item {
  background: var(--card-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-light);
  overflow: hidden;
  transition: var(--transition-medium);
  box-shadow: var(--shadow-light);
  position: relative;
}

.market-item:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-floating);
  border-color: rgba(0, 122, 255, 0.2);
}

.item-header {
  display: flex;
  gap: var(--spacing-lg);
  padding: var(--spacing-xl);
  background: linear-gradient(135deg, rgba(0, 122, 255, 0.02), rgba(175, 82, 222, 0.02));
}

.item-icon {
  flex-shrink: 0;
  width: 64px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--secondary-bg);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-light);
  border: 1px solid var(--border-light);
}

.item-image-icon {
  width: 48px;
  height: 48px;
  object-fit: contain;
  border-radius: var(--radius-sm);
}

.fallback-icon {
  font-size: var(--font-size-2xl);
}

.item-info {
  flex: 1;
  min-width: 0;
}

.item-id {
  font-size: var(--font-size-xs);
  color: var(--secondary-text);
  font-weight: 500;
  margin-bottom: var(--spacing-xs);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.item-name {
  font-size: var(--font-size-lg);
  font-weight: 600;
  color: var(--primary-text);
  margin-bottom: var(--spacing-sm);
  line-height: 1.3;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.item-meta {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
}

.item-quantity {
  font-size: var(--font-size-sm);
  color: var(--secondary-text);
  font-weight: 500;
}

.item-details {
  padding: 0 var(--spacing-xl);
  margin-bottom: var(--spacing-lg);
}

/* Durability Info */
.durability-info {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
  margin-top: var(--spacing-sm);
}

.durability-label {
  font-size: var(--font-size-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.durability-bar {
  height: 4px;
  background: var(--border-light);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.durability-fill {
  height: 100%;
  border-radius: var(--radius-full);
  transition: var(--transition-medium);
}

.durability-high .durability-label {
  color: var(--accent-green);
}

.durability-high .durability-fill {
  background: linear-gradient(90deg, var(--accent-green), #4caf50);
}

.durability-medium .durability-label {
  color: var(--accent-orange);
}

.durability-medium .durability-fill {
  background: linear-gradient(90deg, var(--accent-orange), #ff9800);
}

.durability-low .durability-label {
  color: var(--accent-red);
}

.durability-low .durability-fill {
  background: linear-gradient(90deg, var(--accent-red), #f44336);
}

/* Enchantment Info */
.enchantment-info {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  margin-top: var(--spacing-sm);
  padding: var(--spacing-sm) var(--spacing-md);
  background: linear-gradient(135deg, rgba(175, 82, 222, 0.1), rgba(0, 122, 255, 0.1));
  border-radius: var(--radius-sm);
  border: 1px solid rgba(175, 82, 222, 0.2);
}

.enchant-icon {
  font-size: var(--font-size-sm);
}

.enchant-text {
  font-size: var(--font-size-xs);
  font-weight: 500;
  color: var(--accent-purple);
}

/* Item Lore */
.item-lore {
  margin-top: var(--spacing-sm);
}

.lore-content {
  padding: var(--spacing-sm) var(--spacing-md);
  background: rgba(0, 0, 0, 0.02);
  border-radius: var(--radius-sm);
  border-left: 3px solid var(--accent-blue);
}

.lore-line {
  font-size: var(--font-size-xs);
  color: var(--secondary-text);
  font-style: italic;
  line-height: 1.4;
}

/* Pricing */
.item-pricing {
  padding: 0 var(--spacing-xl) var(--spacing-lg);
}

.price-info {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--spacing-lg);
}

.unit-price, .total-price {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
}

.price-label {
  font-size: var(--font-size-xs);
  color: var(--secondary-text);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.price-value {
  font-size: var(--font-size-lg);
  font-weight: 700;
  color: var(--primary-text);
}

.price-value.total {
  color: var(--accent-green);
  font-size: var(--font-size-xl);
}

/* Item Footer */
.item-footer {
  padding: var(--spacing-lg) var(--spacing-xl);
  background: rgba(0, 0, 0, 0.02);
  border-top: 1px solid var(--border-light);
}

.seller-info {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--spacing-lg);
}

.seller-name {
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--primary-text);
}

.list-time {
  font-size: var(--font-size-xs);
  color: var(--secondary-text);
}

.item-actions {
  display: flex;
  gap: var(--spacing-sm);
}

/* Expiry Info */
.expiry-info {
  position: absolute;
  top: var(--spacing-lg);
  right: var(--spacing-lg);
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  padding: var(--spacing-xs) var(--spacing-sm);
  background: rgba(0, 0, 0, 0.6);
  color: white;
  border-radius: var(--radius-full);
  font-size: var(--font-size-xs);
  font-weight: 500;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.expiry-info.expiring-soon {
  background: rgba(255, 59, 48, 0.8);
  animation: pulse 2s infinite;
}

/* Inventory Grid */
.inventory-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-2xl);
}

/* Inventory Item Card */
.item-card {
  background: var(--card-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-light);
  padding: var(--spacing-xl);
  transition: var(--transition-medium);
  box-shadow: var(--shadow-light);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
  position: relative;
}

.item-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-medium);
  border-color: rgba(0, 122, 255, 0.2);
}

.item-card h4 {
  font-size: var(--font-size-lg);
  font-weight: 600;
  color: var(--primary-text);
  margin-bottom: var(--spacing-xs);
}

.item-card small {
  font-size: var(--font-size-sm);
  color: var(--secondary-text);
  display: block;
  margin-bottom: var(--spacing-xs);
}

.sell-btn {
  margin-top: auto;
  background: linear-gradient(135deg, var(--accent-green), #4caf50);
  color: white;
  border: none;
  padding: var(--spacing-md) var(--spacing-lg);
  border-radius: var(--radius-md);
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition-medium);
}

.sell-btn:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-medium);
}

.view-bundle-btn {
  background: var(--accent-blue);
  color: white;
  border: none;
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--radius-sm);
  font-size: var(--font-size-xs);
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition-fast);
}

.view-bundle-btn:hover {
  background: #0051d5;
}

/* Player Info */
.player-info {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-2xl);
}

.info-item {
  background: var(--card-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  border: 1px solid var(--border-light);
  box-shadow: var(--shadow-light);
  text-align: center;
}

.info-item .label {
  display: block;
  font-size: var(--font-size-sm);
  color: var(--secondary-text);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--spacing-sm);
}

.info-item span:not(.label) {
  font-size: var(--font-size-2xl);
  font-weight: 700;
  color: var(--primary-text);
}

/* Leaderboard */
.leaderboard-tabs {
  display: flex;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-2xl);
  background: var(--card-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-radius: var(--radius-lg);
  padding: var(--spacing-sm);
  border: 1px solid var(--border-light);
  overflow-x: auto;
}

.tab-btn {
  flex: 1;
  min-width: max-content;
  background: transparent;
  border: none;
  padding: var(--spacing-md) var(--spacing-lg);
  border-radius: var(--radius-md);
  font-weight: 600;
  color: var(--secondary-text);
  cursor: pointer;
  transition: var(--transition-medium);
  position: relative;
}

.tab-btn.active {
  background: linear-gradient(135deg, var(--accent-blue), #0051d5);
  color: white;
  box-shadow: var(--shadow-light);
}

.tab-btn:not(.active):hover {
  background: rgba(0, 122, 255, 0.1);
  color: var(--accent-blue);
}

.leaderboard-table {
  display: none;
}

.leaderboard-table.active {
  display: block;
}

.leaderboard-container {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
}

.leaderboard-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-lg);
  background: var(--card-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  border: 1px solid var(--border-light);
  box-shadow: var(--shadow-light);
  transition: var(--transition-medium);
}

.leaderboard-item:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-medium);
}

.rank {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: var(--radius-full);
  font-weight: 700;
  font-size: var(--font-size-lg);
  background: var(--tertiary-bg);
  color: var(--primary-text);
  flex-shrink: 0;
}

.rank-1 {
  background: linear-gradient(135deg, #ffd700, #ffb300);
  color: white;
  box-shadow: var(--shadow-medium);
}

.rank-2 {
  background: linear-gradient(135deg, #c0c0c0, #9e9e9e);
  color: white;
  box-shadow: var(--shadow-medium);
}

.rank-3 {
  background: linear-gradient(135deg, #cd7f32, #a0522d);
  color: white;
  box-shadow: var(--shadow-medium);
}

.username {
  flex: 1;
  font-size: var(--font-size-lg);
  font-weight: 600;
  color: var(--primary-text);
}

.leaderboard-meta {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
  text-align: right;
}

.meta-money, .meta-count {
  font-size: var(--font-size-sm);
  font-weight: 500;
}

.meta-money {
  color: var(--accent-green);
}

.meta-count {
  color: var(--secondary-text);
}

/* Auth Forms */
.auth-container {
  max-width: 400px;
  margin: 0 auto;
}

.auth-form {
  background: var(--card-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-radius: var(--radius-xl);
  padding: var(--spacing-3xl);
  border: 1px solid var(--border-light);
  box-shadow: var(--shadow-strong);
  margin-bottom: var(--spacing-2xl);
}

.auth-form h2 {
  text-align: center;
  color: var(--primary-text);
  margin-bottom: var(--spacing-2xl);
  font-size: var(--font-size-2xl);
  font-weight: 700;
}

.form-group {
  margin-bottom: var(--spacing-xl);
}

.form-input {
  width: 100%;
  padding: var(--spacing-lg);
  border: 2px solid var(--border-light);
  border-radius: var(--radius-md);
  font-size: var(--font-size-base);
  background: var(--secondary-bg);
  color: var(--primary-text);
  transition: var(--transition-medium);
}

.form-input:focus {
  outline: none;
  border-color: var(--accent-blue);
  box-shadow: 0 0 0 4px rgba(0, 122, 255, 0.1);
}

.form-input::placeholder {
  color: var(--secondary-text);
}

.auth-switch {
  text-align: center;
  font-size: var(--font-size-sm);
  color: var(--secondary-text);
  margin-top: var(--spacing-lg);
}

.auth-switch a {
  color: var(--accent-blue);
  text-decoration: none;
  font-weight: 600;
  transition: var(--transition-fast);
}

.auth-switch a:hover {
  text-decoration: underline;
}

/* Binding Section */
.binding-info {
  text-align: center;
  padding: var(--spacing-2xl);
  background: linear-gradient(135deg, rgba(40, 205, 65, 0.1), rgba(0, 122, 255, 0.1));
  border-radius: var(--radius-lg);
  border: 1px solid rgba(40, 205, 65, 0.2);
  margin-bottom: var(--spacing-2xl);
}

.binding-info p {
  margin-bottom: var(--spacing-lg);
  color: var(--primary-text);
}

.binding-command {
  display: inline-block;
  padding: var(--spacing-md) var(--spacing-lg);
  background: var(--primary-text);
  color: var(--primary-bg);
  border-radius: var(--radius-sm);
  font-family: 'SF Mono', 'Monaco', 'Cascadia Code', 'Roboto Mono', monospace;
  font-size: var(--font-size-sm);
  font-weight: 600;
  margin: var(--spacing-lg) 0;
  user-select: all;
}

.binding-expiry {
  font-size: var(--font-size-sm);
  color: var(--accent-orange);
  font-weight: 500;
}

/* Modal Styles */
.modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  z-index: 2000;
  animation: modalFadeIn 0.3s ease-out;
}

.modal-content {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: var(--card-bg);
  backdrop-filter: blur(30px);
  -webkit-backdrop-filter: blur(30px);
  border-radius: var(--radius-xl);
  border: 1px solid var(--border-light);
  box-shadow: var(--shadow-floating);
  max-width: 90vw;
  max-height: 90vh;
  overflow-y: auto;
  animation: modalSlideIn 0.3s ease-out;
}

.close {
  position: absolute;
  top: var(--spacing-lg);
  right: var(--spacing-lg);
  font-size: var(--font-size-2xl);
  color: var(--secondary-text);
  cursor: pointer;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-full);
  transition: var(--transition-fast);
  z-index: 1;
}

.close:hover {
  background: rgba(0, 0, 0, 0.1);
  color: var(--primary-text);
}

/* Bundle Modal */
.bundle-modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2000;
  animation: modalFadeIn 0.3s ease-out;
}

.bundle-content {
  background: var(--card-bg);
  backdrop-filter: blur(30px);
  -webkit-backdrop-filter: blur(30px);
  border-radius: var(--radius-xl);
  border: 1px solid var(--border-light);
  box-shadow: var(--shadow-floating);
  max-width: 90vw;
  max-height: 90vh;
  overflow-y: auto;
  position: relative;
  padding: var(--spacing-3xl);
  animation: modalSlideIn 0.3s ease-out;
}

.bundle-content h3 {
  font-size: var(--font-size-2xl);
  font-weight: 700;
  color: var(--primary-text);
  margin-bottom: var(--spacing-2xl);
  text-align: center;
  padding-right: var(--spacing-3xl);
}

.close-btn {
  position: absolute;
  top: var(--spacing-lg);
  right: var(--spacing-lg);
  background: none;
  border: none;
  font-size: var(--font-size-2xl);
  color: var(--secondary-text);
  cursor: pointer;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-full);
  transition: var(--transition-fast);
}

.close-btn:hover {
  background: rgba(255, 59, 48, 0.1);
  color: var(--accent-red);
}

.bundle-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-2xl);
}

.bundle-item {
  display: flex;
  gap: var(--spacing-lg);
  background: var(--secondary-bg);
  border-radius: var(--radius-md);
  padding: var(--spacing-lg);
  border: 1px solid var(--border-light);
  transition: var(--transition-fast);
}

.bundle-item:hover {
  background: var(--tertiary-bg);
  border-color: var(--accent-blue);
}

.bundle-item .item-image-icon {
  width: 48px;
  height: 48px;
  flex-shrink: 0;
}

.item-details {
  flex: 1;
  min-width: 0;
}

.item-details .item-name {
  font-size: var(--font-size-base);
  font-weight: 600;
  color: var(--primary-text);
  margin-bottom: var(--spacing-xs);
}

.item-details .item-id {
  font-size: var(--font-size-sm);
  color: var(--secondary-text);
  margin-bottom: var(--spacing-xs);
}

.item-details .item-amount,
.item-details .item-durability,
.item-details .item-enchantments {
  font-size: var(--font-size-sm);
  color: var(--tertiary-text);
  margin-bottom: var(--spacing-xs);
}

.item-details .item-enchantments {
  color: var(--accent-purple);
  font-weight: 500;
}

.bundle-actions {
  display: flex;
  justify-content: center;
  gap: var(--spacing-lg);
}

.close-bottom-btn {
  background: var(--accent-blue);
  color: white;
  border: none;
  padding: var(--spacing-md) var(--spacing-2xl);
  border-radius: var(--radius-md);
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition-medium);
}

.close-bottom-btn:hover {
  background: #0051d5;
  transform: translateY(-1px);
  box-shadow: var(--shadow-medium);
}

/* Item Modal */
.item-modal {
  padding: var(--spacing-3xl);
}

.item-modal h2 {
  font-size: var(--font-size-2xl);
  font-weight: 700;
  color: var(--primary-text);
  margin-bottom: var(--spacing-2xl);
  text-align: center;
}

.modal-actions {
  display: flex;
  justify-content: center;
  gap: var(--spacing-lg);
  margin-top: var(--spacing-2xl);
}

/* Custom Prompts and Alerts */
.custom-prompt {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 3000;
  animation: modalFadeIn 0.3s ease-out;
}

.prompt-content {
  background: var(--card-bg);
  backdrop-filter: blur(30px);
  -webkit-backdrop-filter: blur(30px);
  border-radius: var(--radius-xl);
  border: 1px solid var(--border-light);
  box-shadow: var(--shadow-floating);
  padding: var(--spacing-3xl);
  max-width: 400px;
  width: 90vw;
  animation: modalSlideIn 0.3s ease-out;
}

.prompt-title {
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: var(--primary-text);
  margin-bottom: var(--spacing-lg);
  text-align: center;
}

.prompt-message {
  font-size: var(--font-size-base);
  color: var(--secondary-text);
  margin-bottom: var(--spacing-2xl);
  text-align: center;
  line-height: 1.6;
}

.prompt-input {
  width: 100%;
  padding: var(--spacing-lg);
  border: 2px solid var(--border-light);
  border-radius: var(--radius-md);
  font-size: var(--font-size-base);
  background: var(--secondary-bg);
  color: var(--primary-text);
  margin-bottom: var(--spacing-xl);
  transition: var(--transition-medium);
}

.prompt-input:focus {
  outline: none;
  border-color: var(--accent-blue);
  box-shadow: 0 0 0 4px rgba(0, 122, 255, 0.1);
}

.prompt-actions {
  display: flex;
  gap: var(--spacing-lg);
  justify-content: center;
}

.prompt-btn {
  padding: var(--spacing-md) var(--spacing-xl);
  border: none;
  border-radius: var(--radius-md);
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition-medium);
  min-width: 100px;
}

.prompt-btn-primary {
  background: linear-gradient(135deg, var(--accent-blue), #0051d5);
  color: white;
}

.prompt-btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-medium);
}

.prompt-btn-secondary {
  background: var(--secondary-bg);
  color: var(--primary-text);
  border: 2px solid var(--border-medium);
}

.prompt-btn-secondary:hover {
  background: var(--tertiary-bg);
}

/* Notifications */
.notifications {
  position: fixed;
  top: var(--spacing-2xl);
  right: var(--spacing-2xl);
  z-index: 4000;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
  max-width: 400px;
}

.notification {
  background: var(--card-bg);
  backdrop-filter: blur(30px);
  -webkit-backdrop-filter: blur(30px);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg) var(--spacing-xl);
  border: 1px solid var(--border-light);
  box-shadow: var(--shadow-strong);
  font-weight: 500;
  animation: notificationSlideIn 0.4s ease-out;
  position: relative;
  overflow: hidden;
}

.notification::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 4px;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}

.notification.info {
  color: var(--accent-blue);
}

.notification.info::before {
  background: var(--accent-blue);
}

.notification.success {
  color: var(--accent-green);
}

.notification.success::before {
  background: var(--accent-green);
}

.notification.warning {
  color: var(--accent-orange);
}

.notification.warning::before {
  background: var(--accent-orange);
}

.notification.error {
  color: var(--accent-red);
}

.notification.error::before {
  background: var(--accent-red);
}

/* Pagination */
.pagination {
  display: flex;
  justify-content: center;
  gap: var(--spacing-sm);
  margin-top: var(--spacing-2xl);
  flex-wrap: wrap;
}

.page-btn {
  background: var(--secondary-bg);
  border: 1px solid var(--border-light);
  color: var(--primary-text);
  padding: var(--spacing-md) var(--spacing-lg);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: var(--transition-fast);
  font-weight: 500;
  min-width: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.page-btn:hover {
  background: var(--tertiary-bg);
  border-color: var(--accent-blue);
}

.page-btn.active {
  background: linear-gradient(135deg, var(--accent-blue), #0051d5);
  color: white;
  border-color: var(--accent-blue);
  box-shadow: var(--shadow-light);
}

/* Loading States */
.loading-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-3xl);
  text-align: center;
}

.spinner {
  width: 48px;
  height: 48px;
  border: 3px solid var(--border-light);
  border-top: 3px solid var(--accent-blue);
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin-bottom: var(--spacing-lg);
}

.loading {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-2xl);
  font-size: var(--font-size-lg);
  color: var(--secondary-text);
}

/* Empty States */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-3xl);
  text-align: center;
  background: var(--card-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-radius: var(--radius-xl);
  border: 2px dashed var(--border-medium);
}

.empty-icon {
  font-size: var(--font-size-4xl);
  margin-bottom: var(--spacing-lg);
  opacity: 0.5;
}

.empty-state h3 {
  font-size: var(--font-size-xl);
  color: var(--secondary-text);
  font-weight: 600;
  margin-bottom: var(--spacing-md);
}

.empty-state p {
  color: var(--tertiary-text);
  font-size: var(--font-size-base);
  max-width: 300px;
  line-height: 1.6;
}

/* Error States */
.error-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-3xl);
  text-align: center;
  background: rgba(255, 59, 48, 0.05);
  border-radius: var(--radius-xl);
  border: 2px dashed rgba(255, 59, 48, 0.2);
}

.error-icon {
  font-size: var(--font-size-4xl);
  margin-bottom: var(--spacing-lg);
  opacity: 0.7;
}

.error-state h3 {
  font-size: var(--font-size-xl);
  color: var(--accent-red);
  font-weight: 600;
  margin-bottom: var(--spacing-md);
}

.error-state p {
  color: var(--secondary-text);
  font-size: var(--font-size-base);
  max-width: 300px;
  line-height: 1.6;
  margin-bottom: var(--spacing-xl);
}

.error-card {
  background: rgba(255, 59, 48, 0.05);
  border-color: rgba(255, 59, 48, 0.2);
}

.error-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: var(--spacing-lg);
}

.error-content .error-icon {
  font-size: var(--font-size-2xl);
  margin-bottom: var(--spacing-md);
}

.error-content h4 {
  color: var(--accent-red);
  margin-bottom: var(--spacing-sm);
}

/* Login Prompt */
.login-prompt {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-3xl);
  text-align: center;
  background: var(--card-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-radius: var(--radius-xl);
  border: 1px solid var(--border-light);
  box-shadow: var(--shadow-medium);
}

.prompt-icon {
  font-size: var(--font-size-4xl);
  margin-bottom: var(--spacing-lg);
  opacity: 0.6;
}

.login-prompt h3 {
  font-size: var(--font-size-2xl);
  color: var(--primary-text);
  font-weight: 700;
  margin-bottom: var(--spacing-md);
}

.login-prompt p {
  color: var(--secondary-text);
  font-size: var(--font-size-base);
  max-width: 300px;
  line-height: 1.6;
  margin-bottom: var(--spacing-2xl);
}

/* Footer */
.footer {
  background: var(--card-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-top: 1px solid var(--border-light);
  padding: var(--spacing-2xl) 0;
  text-align: center;
  color: var(--secondary-text);
  font-size: var(--font-size-sm);
  margin-top: var(--spacing-3xl);
}

/* Animations */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

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

@keyframes modalSlideIn {
  from { opacity: 0; transform: translate(-50%, -60%); }
  to { opacity: 1; transform: translate(-50%, -50%); }
}

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

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

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.7; }
}

/* Responsive Design */
@media (max-width: 768px) {
  :root {
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 0.75rem;
    --spacing-lg: 1rem;
    --spacing-xl: 1.25rem;
    --spacing-2xl: 1.5rem;
    --spacing-3xl: 2rem;
  }

  .container {
    padding: 0 var(--spacing-lg);
  }

  .header .container {
    padding: var(--spacing-md);
  }

  .nav-collapse {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--card-bg);
    backdrop-filter: blur(30px);
    -webkit-backdrop-filter: blur(30px);
    border: 1px solid var(--border-light);
    border-radius: 0 0 var(--radius-lg) var(--radius-lg);
    flex-direction: column;
    gap: var(--spacing-lg);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-strong);
  }

  .nav-collapse.show {
    display: flex;
  }

  .nav-links {
    flex-direction: column;
    width: 100%;
    gap: var(--spacing-md);
  }

  .nav-link {
    width: 100%;
    text-align: center;
    padding: var(--spacing-md);
  }

  .auth-section {
    width: 100%;
    flex-direction: column;
    gap: var(--spacing-md);
  }

  .auth-buttons {
    width: 100%;
    justify-content: center;
  }

  .user-info {
    width: 100%;
    justify-content: center;
    flex-wrap: wrap;
  }

  .menu-toggle {
    display: block;
  }

  .language-select {
    position: static;
    align-self: flex-end;
    margin: 0;
  }

  .page h2 {
    font-size: var(--font-size-2xl);
    margin-bottom: var(--spacing-xl);
  }

  .search-bar {
    flex-direction: column;
    gap: var(--spacing-md);
  }

  .filters {
    flex-direction: column;
    gap: var(--spacing-md);
  }

  .filter-select {
    width: 100%;
    min-width: unset;
  }

  .items-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
  }

  .inventory-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
  }

  .item-header {
    gap: var(--spacing-md);
    padding: var(--spacing-lg);
  }

  .item-icon {
    width: 56px;
    height: 56px;
  }

  .item-image-icon {
    width: 40px;
    height: 40px;
  }

  .price-info {
    flex-direction: column;
    gap: var(--spacing-md);
    text-align: center;
  }

  .item-actions {
    flex-direction: column;
    gap: var(--spacing-sm);
  }

  .leaderboard-tabs {
    overflow-x: auto;
    scrollbar-width: none;
    -ms-overflow-style: none;
  }

  .leaderboard-tabs::-webkit-scrollbar {
    display: none;
  }

  .tab-btn {
    flex-shrink: 0;
    min-width: 120px;
  }

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

  .leaderboard-meta {
    text-align: center;
  }

  .player-info {
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
  }

  .auth-form {
    padding: var(--spacing-2xl);
    margin: 0 var(--spacing-lg);
  }

  .bundle-content {
    padding: var(--spacing-2xl);
    margin: var(--spacing-lg);
    max-width: calc(100vw - 2rem);
  }

  .bundle-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
  }

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

  .notifications {
    top: var(--spacing-lg);
    right: var(--spacing-lg);
    left: var(--spacing-lg);
    max-width: none;
  }

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

  .pagination {
    gap: var(--spacing-xs);
  }

  .page-btn {
    padding: var(--spacing-sm) var(--spacing-md);
    min-width: 36px;
    font-size: var(--font-size-sm);
  }
}

@media (max-width: 480px) {
  .item-card {
    padding: var(--spacing-lg);
  }

  .bundle-content h3 {
    font-size: var(--font-size-xl);
    padding-right: var(--spacing-2xl);
  }

  .prompt-content {
    padding: var(--spacing-2xl);
    margin: var(--spacing-lg);
  }

  .prompt-actions {
    flex-direction: column;
  }

  .prompt-btn {
    width: 100%;
  }
}

/* High contrast mode support */
@media (prefers-contrast: high) {
  :root {
    --border-light: rgba(0, 0, 0, 0.2);
    --border-medium: rgba(0, 0, 0, 0.3);
    --border-strong: rgba(0, 0, 0, 0.4);
    --shadow-light: 0 2px 4px rgba(0, 0, 0, 0.2);
    --shadow-medium: 0 4px 16px rgba(0, 0, 0, 0.2);
    --shadow-strong: 0 8px 32px rgba(0, 0, 0, 0.3);
  }
}

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

.shop-container {
    display: none;
}

.shop-container.active {
    display: block;
}

.admin-unlist-btn,
.admin-delete-btn {
  margin-left: 8px;
  background: #e74c3c;
  border-color: #c0392b;
}

#change-password-form {
    margin-top: 20px;
    padding: 20px;
    background-color: #f9f9f9;
    border: 1px solid #ddd;
    border-radius: 5px;
}

#change-password-form h2 {
    margin-bottom: 20px;
}

#change-password-form .form-group {
    margin-bottom: 15px;
}

#change-password-form .form-group input {
    width: 100%;
    padding: 10px;
    border: 1px solid #ccc;
    border-radius: 5px;
}

#change-password-form .btn {
    width: 100%;
    padding: 10px;
    border: none;
    border-radius: 5px;
    background-color: #007bff;
    color: white;
    cursor: pointer;
}

#change-password-form .btn:hover {
    background-color: #0056b3;
}

#change-password-form .auth-switch {
    margin-top: 10px;
    text-align: center;
}

#change-password-form .auth-switch a {
    color: #007bff;
    text-decoration: none;
}

#change-password-form .auth-switch a:hover {
    text-decoration: underline;
}

.confirm-card{
  position:fixed;top:50%;left:50%;
  transform:translate(-50%,-50%) scale(.95);
  background:#fff;color:#111;
  border-radius:12px;
  padding:24px 28px 20px;
  box-shadow:0 8px 32px rgba(0,0,0,.18);
  z-index:9999;min-width:260px;text-align:center;
  transition:.25s cubic-bezier(.175,.885,.32,1.275);
}
.confirm-card.show{transform:translate(-50%,-50%) scale(1)}
.confirm-title{font-size:18px;font-weight:600;margin:0 0 8px}
.confirm-desc{margin:0 0 20px;color:#555;font-size:14px}
.confirm-actions{display:flex;gap:12px;justify-content:center}
.btn-primary{background:#2563eb;color:#fff}
.btn-ghost{color:#2563eb;border:1px solid #2563eb}

@media screen and (max-width: 768px) {
    #notifications {
        position: fixed;
        top: 60px;
        left: 50%;
        transform: translateX(-50%);
        z-index: 9999;
    }
}

/* 验证码样式 */
.captcha-group {
    margin-bottom: 1rem;
}

.captcha-row {
    display: flex;
    align-items: center;
    gap: 10px;
}

.captcha-input {
    flex: 1;
    min-width: 120px;
}

.captcha-container {
    display: flex;
    align-items: center;
    gap: 5px;
    flex-shrink: 0;
}

.captcha-canvas {
    border: 1px solid #ddd;
    border-radius: 4px;
    cursor: pointer;
}

.captcha-refresh-btn {
    background: #f8f9fa;
    border: 1px solid #ddd;
    border-radius: 4px;
    padding: 5px 8px;
    cursor: pointer;
    font-size: 14px;
    transition: all 0.2s;
}

.captcha-refresh-btn:hover {
    background: #e9ecef;
    border-color: #adb5bd;
}