/* =====================================================
   GAME MARKETPLACE - DESIGN SYSTEM
   Modern, Premium Gaming Aesthetic
   ===================================================== */

/* CSS Variables */
:root {
  /* Colors - Dark Gaming Theme */
  --color-bg-primary: #0a0a0f;
  --color-bg-secondary: #12121a;
  --color-bg-card: #1a1a25;
  --color-bg-hover: #22222f;
  
  /* Accent Colors */
  --color-accent: #6c5ce7;
  --color-accent-light: #a29bfe;
  --color-accent-dark: #5541d9;
  
  /* Gaming Colors */
  --color-gold: #ffd700;
  --color-diamond: #00d9ff;
  --color-legendary: #ff6b35;
  --color-epic: #9b59b6;
  
  /* Status Colors */
  --color-success: #00b894;
  --color-warning: #fdcb6e;
  --color-danger: #e74c3c;
  --color-info: #0984e3;
  
  /* Text Colors */
  --color-text-primary: #ffffff;
  --color-text-secondary: #a0a0b0;
  --color-text-muted: #6c6c7c;
  
  /* Gradients */
  --gradient-primary: linear-gradient(135deg, #6c5ce7 0%, #a29bfe 100%);
  --gradient-gold: linear-gradient(135deg, #f5af19 0%, #f12711 100%);
  --gradient-diamond: linear-gradient(135deg, #00d9ff 0%, #0099ff 100%);
  --gradient-dark: linear-gradient(180deg, #12121a 0%, #0a0a0f 100%);
  
  /* Shadows */
  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 20px rgba(108, 92, 231, 0.3);
  
  /* Border Radius */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  
  /* Transitions */
  --transition-fast: 0.15s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.5s ease;
  
  /* Spacing */
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 32px;
  --space-2xl: 48px;
  
  /* Container */
  --container-max: 1200px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--color-bg-primary);
  color: var(--color-text-primary);
  line-height: 1.6;
  min-height: 100vh;
}

a {
  text-decoration: none;
  color: inherit;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  outline: none;
}

input, textarea, select {
  font-family: inherit;
  outline: none;
}

/* Container */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-md);
}

/* =====================================================
   HEADER & NAVIGATION
   ===================================================== */
.header {
  background: rgba(18, 18, 26, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  position: sticky;
  top: 0;
  z-index: 1000;
}

.header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-md);
  gap: var(--space-lg);
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: 1.5rem;
  font-weight: 700;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.logo-icon {
  font-size: 1.8rem;
}

.nav {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
}

.nav-link {
  color: var(--color-text-secondary);
  font-weight: 500;
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-sm);
  transition: var(--transition-fast);
}

.nav-link:hover {
  color: var(--color-text-primary);
  background: var(--color-bg-hover);
}

.nav-link.active {
  color: var(--color-accent);
}

.search-box {
  display: flex;
  align-items: center;
  background: var(--color-bg-card);
  border-radius: var(--radius-md);
  padding: var(--space-sm) var(--space-md);
  flex: 1;
  max-width: 400px;
}

.search-box input {
  background: transparent;
  border: none;
  color: var(--color-text-primary);
  width: 100%;
  padding: var(--space-xs);
}

.search-box input::placeholder {
  color: var(--color-text-muted);
}

.search-box button {
  background: transparent;
  color: var(--color-text-secondary);
  padding: var(--space-xs);
}

/* =====================================================
   BUTTONS
   ===================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-lg);
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 0.95rem;
  transition: var(--transition-fast);
}

.btn-primary {
  background: var(--gradient-primary);
  color: white;
  box-shadow: var(--shadow-glow);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 30px rgba(108, 92, 231, 0.5);
}

.btn-secondary {
  background: var(--color-bg-card);
  color: var(--color-text-primary);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

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

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

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

.btn-lg {
  padding: var(--space-md) var(--space-xl);
  font-size: 1.1rem;
}

.btn-sm {
  padding: var(--space-xs) var(--space-md);
  font-size: 0.85rem;
}

.btn-block {
  width: 100%;
}

/* =====================================================
   HERO SECTION
   ===================================================== */
.hero {
  background: var(--gradient-dark);
  padding: var(--space-2xl) 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(circle at 50% 0%, rgba(108, 92, 231, 0.15) 0%, transparent 50%);
}

.hero-content {
  position: relative;
  z-index: 1;
}

.hero h1 {
  font-size: 2.5rem;
  font-weight: 800;
  margin-bottom: var(--space-md);
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero p {
  font-size: 1.2rem;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-lg);
}

.hero-stats {
  display: flex;
  justify-content: center;
  gap: var(--space-2xl);
  margin-top: var(--space-xl);
}

.hero-stat {
  text-align: center;
}

.hero-stat-value {
  font-size: 2rem;
  font-weight: 700;
  color: var(--color-accent);
}

.hero-stat-label {
  color: var(--color-text-muted);
  font-size: 0.9rem;
}

/* =====================================================
   GAME CARDS
   ===================================================== */
.games-section {
  padding: var(--space-2xl) 0;
}

.section-title {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: var(--space-lg);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.section-title::before {
  content: '';
  width: 4px;
  height: 24px;
  background: var(--gradient-primary);
  border-radius: 2px;
}

.games-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-lg);
}

.game-card {
  background: var(--color-bg-card);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: var(--transition-normal);
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.game-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-accent);
}

.game-card-image {
  width: 100%;
  height: 160px;
  object-fit: cover;
}

.game-card-content {
  padding: var(--space-md);
}

.game-card-title {
  font-size: 1.2rem;
  font-weight: 600;
  margin-bottom: var(--space-xs);
}

.game-card-count {
  color: var(--color-accent);
  font-size: 0.9rem;
}

/* =====================================================
   ACCOUNT CARDS
   ===================================================== */
.accounts-section {
  padding: var(--space-2xl) 0;
}

.accounts-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--space-lg);
}

.account-card {
  background: var(--color-bg-card);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: var(--transition-normal);
  border: 1px solid rgba(255, 255, 255, 0.05);
  position: relative;
}

.account-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-accent);
}

.account-card-badge {
  position: absolute;
  top: var(--space-sm);
  left: var(--space-sm);
  background: var(--color-danger);
  color: white;
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  font-weight: 600;
}

.account-card-badge.hot {
  background: var(--gradient-gold);
}

.account-card-image {
  width: 100%;
  height: 180px;
  object-fit: cover;
}

.account-card-content {
  padding: var(--space-md);
}

.account-card-game {
  color: var(--color-accent);
  font-size: 0.8rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: var(--space-xs);
}

.account-card-title {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: var(--space-sm);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.account-card-info {
  display: flex;
  gap: var(--space-md);
  color: var(--color-text-secondary);
  font-size: 0.85rem;
  margin-bottom: var(--space-md);
}

.account-card-info span {
  display: flex;
  align-items: center;
  gap: 4px;
}

.account-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.account-card-price {
  display: flex;
  flex-direction: column;
}

.price-current {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--color-success);
}

.price-original {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  text-decoration: line-through;
}

/* =====================================================
   FILTERS
   ===================================================== */
.filters {
  background: var(--color-bg-secondary);
  padding: var(--space-md);
  border-radius: var(--radius-lg);
  margin-bottom: var(--space-lg);
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
  align-items: center;
}

.filter-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.filter-label {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.filter-select {
  background: var(--color-bg-card);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-sm);
  color: var(--color-text-primary);
  padding: var(--space-sm) var(--space-md);
  min-width: 150px;
}

.filter-select:focus {
  border-color: var(--color-accent);
}

/* =====================================================
   ACCOUNT DETAIL PAGE
   ===================================================== */
.account-detail {
  padding: var(--space-2xl) 0;
}

.account-detail-grid {
  display: grid;
  grid-template-columns: 1fr 400px;
  gap: var(--space-xl);
}

.account-gallery {
  background: var(--color-bg-card);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.account-gallery-main {
  width: 100%;
  height: 400px;
  object-fit: cover;
}

.account-gallery-thumbs {
  display: flex;
  gap: var(--space-sm);
  padding: var(--space-md);
}

.account-gallery-thumb {
  width: 80px;
  height: 60px;
  object-fit: cover;
  border-radius: var(--radius-sm);
  cursor: pointer;
  opacity: 0.6;
  transition: var(--transition-fast);
}

.account-gallery-thumb:hover,
.account-gallery-thumb.active {
  opacity: 1;
}

.account-info-card {
  background: var(--color-bg-card);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  position: sticky;
  top: 100px;
}

.account-info-game {
  color: var(--color-accent);
  font-size: 0.9rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: var(--space-sm);
}

.account-info-title {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: var(--space-md);
}

.account-info-price {
  display: flex;
  align-items: baseline;
  gap: var(--space-md);
  margin-bottom: var(--space-lg);
  padding-bottom: var(--space-lg);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.account-info-price .price-current {
  font-size: 2rem;
}

.account-stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-md);
  margin-bottom: var(--space-lg);
}

.account-stat {
  background: var(--color-bg-secondary);
  padding: var(--space-md);
  border-radius: var(--radius-md);
  text-align: center;
}

.account-stat-value {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-accent);
}

.account-stat-label {
  font-size: 0.8rem;
  color: var(--color-text-muted);
}

.account-description {
  color: var(--color-text-secondary);
  margin-bottom: var(--space-lg);
  padding-bottom: var(--space-lg);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

/* =====================================================
   CHECKOUT / ORDER FORM
   ===================================================== */
.checkout-section {
  padding: var(--space-2xl) 0;
}

.checkout-grid {
  display: grid;
  grid-template-columns: 1fr 400px;
  gap: var(--space-xl);
}

.form-group {
  margin-bottom: var(--space-md);
}

.form-label {
  display: block;
  margin-bottom: var(--space-xs);
  font-weight: 500;
  color: var(--color-text-secondary);
}

.form-input {
  width: 100%;
  background: var(--color-bg-card);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-md);
  padding: var(--space-md);
  color: var(--color-text-primary);
  font-size: 1rem;
  transition: var(--transition-fast);
}

.form-input:focus {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(108, 92, 231, 0.2);
}

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

/* =====================================================
   QR PAYMENT
   ===================================================== */
.qr-payment-card {
  background: var(--color-bg-card);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  text-align: center;
}

.qr-code {
  background: white;
  padding: var(--space-md);
  border-radius: var(--radius-md);
  display: inline-block;
  margin-bottom: var(--space-md);
}

.qr-code img {
  width: 200px;
  height: 200px;
}

.bank-info {
  background: var(--color-bg-secondary);
  padding: var(--space-md);
  border-radius: var(--radius-md);
  text-align: left;
}

.bank-info-row {
  display: flex;
  justify-content: space-between;
  padding: var(--space-sm) 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.bank-info-row:last-child {
  border-bottom: none;
}

.bank-info-label {
  color: var(--color-text-muted);
}

.bank-info-value {
  font-weight: 600;
}

.bank-info-value.copy {
  color: var(--color-accent);
  cursor: pointer;
}

/* =====================================================
   ADMIN PANEL
   ===================================================== */
.admin-layout {
  display: grid;
  grid-template-columns: 250px 1fr;
  min-height: 100vh;
}

.admin-sidebar {
  background: var(--color-bg-secondary);
  padding: var(--space-lg);
  border-right: 1px solid rgba(255, 255, 255, 0.05);
}

.admin-nav {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.admin-nav-link {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-md);
  border-radius: var(--radius-md);
  color: var(--color-text-secondary);
  transition: var(--transition-fast);
}

.admin-nav-link:hover {
  background: var(--color-bg-hover);
  color: var(--color-text-primary);
}

.admin-nav-link.active {
  background: var(--color-accent);
  color: white;
}

.admin-content {
  padding: var(--space-xl);
}

.admin-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--space-xl);
}

.admin-title {
  font-size: 1.5rem;
  font-weight: 700;
}

/* Data Table */
.data-table {
  width: 100%;
  background: var(--color-bg-card);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.data-table th,
.data-table td {
  padding: var(--space-md);
  text-align: left;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.data-table th {
  background: var(--color-bg-secondary);
  font-weight: 600;
  color: var(--color-text-secondary);
  text-transform: uppercase;
  font-size: 0.8rem;
  letter-spacing: 0.5px;
}

.data-table tr:hover {
  background: var(--color-bg-hover);
}

.data-table-actions {
  display: flex;
  gap: var(--space-sm);
}

/* Status Badges */
.badge {
  display: inline-block;
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
}

.badge-available {
  background: rgba(0, 184, 148, 0.1);
  color: var(--color-success);
}

.badge-sold {
  background: rgba(231, 76, 60, 0.1);
  color: var(--color-danger);
}

.badge-pending {
  background: rgba(253, 203, 110, 0.1);
  color: var(--color-warning);
}

.badge-completed {
  background: rgba(0, 184, 148, 0.1);
  color: var(--color-success);
}

/* =====================================================
   MODAL
   ===================================================== */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.8);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2000;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition-normal);
}

.modal-overlay.active {
  opacity: 1;
  visibility: visible;
}

.modal {
  background: var(--color-bg-card);
  border-radius: var(--radius-lg);
  width: 100%;
  max-width: 500px;
  max-height: 90vh;
  overflow-y: auto;
  transform: translateY(20px);
  transition: var(--transition-normal);
}

.modal-overlay.active .modal {
  transform: translateY(0);
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-lg);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.modal-title {
  font-size: 1.2rem;
  font-weight: 600;
}

.modal-close {
  background: transparent;
  color: var(--color-text-secondary);
  font-size: 1.5rem;
  padding: var(--space-xs);
}

.modal-body {
  padding: var(--space-lg);
}

.modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: var(--space-md);
  padding: var(--space-lg);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

/* =====================================================
   FOOTER
   ===================================================== */
.footer {
  background: var(--color-bg-secondary);
  padding: var(--space-2xl) 0 var(--space-lg);
  margin-top: var(--space-2xl);
  border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-xl);
  margin-bottom: var(--space-xl);
}

.footer-section h4 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: var(--space-md);
  color: var(--color-text-primary);
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.footer-link {
  color: var(--color-text-secondary);
  transition: var(--transition-fast);
}

.footer-link:hover {
  color: var(--color-accent);
}

.footer-bottom {
  text-align: center;
  padding-top: var(--space-lg);
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  color: var(--color-text-muted);
  font-size: 0.9rem;
}

/* =====================================================
   UTILITIES
   ===================================================== */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.text-primary { color: var(--color-text-primary); }
.text-secondary { color: var(--color-text-secondary); }
.text-muted { color: var(--color-text-muted); }
.text-accent { color: var(--color-accent); }
.text-success { color: var(--color-success); }
.text-danger { color: var(--color-danger); }

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

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

.hidden { display: none !important; }

/* =====================================================
   LOADING & EMPTY STATES
   ===================================================== */
.loading {
  display: flex;
  justify-content: center;
  align-items: center;
  padding: var(--space-2xl);
}

.spinner {
  width: 40px;
  height: 40px;
  border: 3px solid var(--color-bg-hover);
  border-top-color: var(--color-accent);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

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

.empty-state {
  text-align: center;
  padding: var(--space-2xl);
  color: var(--color-text-muted);
}

.empty-state-icon {
  font-size: 3rem;
  margin-bottom: var(--space-md);
}

/* =====================================================
   RESPONSIVE
   ===================================================== */
@media (max-width: 768px) {
  .header .container {
    flex-wrap: wrap;
  }
  
  .search-box {
    order: 3;
    max-width: 100%;
    width: 100%;
  }
  
  .nav {
    gap: var(--space-sm);
  }
  
  .hero h1 {
    font-size: 1.8rem;
  }
  
  .hero-stats {
    flex-wrap: wrap;
    gap: var(--space-lg);
  }
  
  .account-detail-grid,
  .checkout-grid {
    grid-template-columns: 1fr;
  }
  
  .account-info-card {
    position: static;
  }
  
  .admin-layout {
    grid-template-columns: 1fr;
  }
  
  .admin-sidebar {
    display: none;
  }
  
  .filters {
    flex-direction: column;
    align-items: stretch;
  }
  
  .filter-group {
    width: 100%;
  }
  
  .filter-select {
    width: 100%;
  }
}