/* ==========================================================================
   NEODECK - DESIGN SYSTEM & LAYOUT
   ========================================================================== */

/* 1. VARIABLES & THEMING */
:root {
  --font-title: 'Outfit', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;

  /* Colors */
  --bg-primary: #0a0a0f;
  --bg-secondary: #12121e;
  --bg-tertiary: #19192c;
  --bg-glass: rgba(18, 18, 30, 0.65);
  --border-glass: rgba(255, 255, 255, 0.08);
  --border-glass-hover: rgba(255, 255, 255, 0.16);

  --color-primary: #8b5cf6;       /* Violet neon */
  --color-primary-glow: rgba(139, 92, 246, 0.4);
  --color-secondary: #06b6d4;     /* Cyan neon */
  --color-secondary-glow: rgba(6, 182, 212, 0.4);
  
  --color-success: #10b981;       /* Emerald */
  --color-warning: #f59e0b;       /* Amber */
  --color-danger: #ef4444;        /* Rose */

  --text-primary: #f8fafc;
  --text-muted: #94a3b8;
  --text-dark: #64748b;

  /* Card Type Neon Colors */
  --color-fire: #ff4757;
  --color-water: #2e86de;
  --color-grass: #2ed573;
  --color-dark: #1e272e;
  --color-gold: #ffa502;
  --color-default: #8b5cf6;

  /* UI Spec */
  --header-height: 80px;
  --sidebar-width: 320px;
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --transition-smooth: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-bounce: all 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

/* 2. BASE RESET & ANIMATED BACKGROUNDS */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  -webkit-font-smoothing: antialiased;
}

body {
  font-family: var(--font-body);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  min-height: 100vh;
  overflow-x: hidden;
  position: relative;
  display: flex;
  flex-direction: column;
}

/* Background animated glowing ambient orbs */
.bg-glow {
  position: fixed;
  width: 500px;
  height: 500px;
  border-radius: 50%;
  filter: blur(120px);
  z-index: -1;
  opacity: 0.35;
  pointer-events: none;
  animation: float-glow 20s infinite alternate;
}

.bg-glow-1 {
  background: radial-gradient(circle, var(--color-primary-glow) 0%, transparent 70%);
  top: -100px;
  right: -100px;
}

.bg-glow-2 {
  background: radial-gradient(circle, var(--color-secondary-glow) 0%, transparent 70%);
  bottom: -150px;
  left: -100px;
  animation-delay: -5s;
  animation-duration: 25s;
}

.bg-glow-3 {
  background: radial-gradient(circle, rgba(239, 68, 68, 0.15) 0%, transparent 70%);
  top: 40%;
  left: 30%;
  animation-delay: -10s;
}

@keyframes float-glow {
  0% {
    transform: translate(0, 0) scale(1);
  }
  100% {
    transform: translate(80px, 50px) scale(1.15);
  }
}

/* 3. SCROLLBARS & GLOBAL STYLES */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}
::-webkit-scrollbar-track {
  background: var(--bg-primary);
}
::-webkit-scrollbar-thumb {
  background: var(--bg-tertiary);
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--color-primary);
}

a {
  color: var(--color-secondary);
  text-decoration: none;
  transition: var(--transition-smooth);
}
a:hover {
  text-shadow: 0 0 8px var(--color-secondary-glow);
}

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

/* 4. APP HEADER */
.app-header {
  position: sticky;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-height);
  background-color: rgba(10, 10, 15, 0.75);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-glass);
  z-index: 100;
  transform: translate3d(0, 0, 1000px);
  -webkit-transform: translate3d(0, 0, 1000px);
}

.header-container {
  max-width: 1400px;
  height: 100%;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo-area {
  display: flex;
  align-items: center;
  gap: 12px;
  cursor: pointer;
}

.logo-icon {
  width: 42px;
  height: 42px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 20px var(--color-primary-glow);
}

.logo-icon i {
  color: white;
  width: 22px;
  height: 22px;
}

.logo-text {
  font-family: var(--font-title);
  font-weight: 800;
  font-size: 24px;
  letter-spacing: 1px;
}

.logo-text span {
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* Nav tabs */
.nav-links {
  display: flex;
  gap: 8px;
  background-color: var(--bg-tertiary);
  padding: 6px;
  border-radius: 30px;
  border: 1px solid var(--border-glass);
}

.nav-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  border-radius: 20px;
  font-size: 14px;
  font-weight: 600;
  transition: var(--transition-smooth);
  color: var(--text-muted);
}

.nav-btn i {
  width: 16px;
  height: 16px;
}

.nav-btn:hover {
  color: var(--text-primary);
  background-color: rgba(255, 255, 255, 0.03);
}

.nav-btn.active {
  color: white;
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  box-shadow: 0 4px 15px rgba(139, 92, 246, 0.3);
}

/* Header Actions */
.header-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

.wallet-pill {
  display: flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-glass);
  padding: 10px 18px;
  border-radius: 30px;
  font-size: 14px;
  font-weight: 700;
  color: #10b981;
}

.wallet-pill i {
  width: 16px;
  height: 16px;
  color: var(--text-muted);
}

.cart-trigger {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-glass);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition-smooth);
  position: relative;
}

.cart-trigger:hover {
  background: var(--bg-tertiary);
  border-color: var(--color-secondary);
  box-shadow: 0 0 15px var(--color-secondary-glow);
}

.cart-icon-wrapper {
  position: relative;
}

.cart-badge {
  position: absolute;
  top: -12px;
  right: -12px;
  background: linear-gradient(135deg, #ef4444, #f43f5e);
  color: white;
  font-size: 11px;
  font-weight: 700;
  min-width: 18px;
  height: 18px;
  border-radius: 9px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 4px;
  border: 2px solid var(--bg-primary);
}

/* 5. MAIN CONTENT FRAMEWORK */
.main-content {
  flex: 1;
  max-width: 1400px;
  width: 100%;
  margin: 0 auto;
  padding: 40px 24px;
}

.page-section {
  display: none;
  animation: fade-in 0.4s ease forwards;
}

.page-section.active {
  display: block;
}

@keyframes fade-in {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Hero Banner */
.hero-banner {
  position: relative;
  background: linear-gradient(135deg, rgba(25, 25, 44, 0.9), rgba(10, 10, 15, 0.9)), url('https://images.unsplash.com/photo-1607604276583-eef5d076aa5f?q=80&w=1200') center/cover;
  border-radius: var(--radius-lg);
  padding: 60px 48px;
  margin-bottom: 40px;
  border: 1px solid var(--border-glass);
  overflow: hidden;
}

.hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(circle at 80% 50%, var(--color-primary-glow) 0%, transparent 60%);
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 600px;
}

.hero-tagline {
  color: var(--color-secondary);
  font-weight: 700;
  font-size: 14px;
  letter-spacing: 2px;
  display: inline-block;
  margin-bottom: 12px;
}

.hero-content h1 {
  font-family: var(--font-title);
  font-size: 44px;
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 16px;
  letter-spacing: -0.5px;
}

.hero-content p {
  color: var(--text-muted);
  font-size: 16px;
  line-height: 1.6;
}

/* 6. MARKETPLACE LAYOUT */
.marketplace-layout {
  display: flex;
  gap: 30px;
  align-items: flex-start;
}

/* Filters Sidebar */
.filters-sidebar {
  width: var(--sidebar-width);
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  padding: 24px;
  position: sticky;
  top: 100px;
}

.sidebar-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border-glass);
}

.sidebar-header h3 {
  font-family: var(--font-title);
  font-size: 18px;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 8px;
}

.reset-link {
  font-size: 12px;
  color: var(--text-muted);
  font-weight: 500;
  transition: var(--transition-smooth);
}
.reset-link:hover {
  color: var(--color-danger);
}

.filter-group {
  margin-bottom: 24px;
}

.filter-group label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-muted);
  margin-bottom: 10px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* Chips filter */
.filter-options {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.chip-filter {
  padding: 8px 14px;
  border-radius: 30px;
  background-color: var(--bg-tertiary);
  border: 1px solid var(--border-glass);
  font-size: 13px;
  font-weight: 500;
  transition: var(--transition-smooth);
  color: var(--text-muted);
}

.chip-filter:hover {
  border-color: var(--border-glass-hover);
  color: var(--text-primary);
}

.chip-filter.active {
  background-color: var(--color-primary-glow);
  border-color: var(--color-primary);
  color: white;
}

/* Inputs styling */
.search-input-wrapper {
  position: relative;
}

.search-icon {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  width: 16px;
  height: 16px;
  color: var(--text-dark);
}

#filter-search,
.custom-input {
  width: 100%;
  background-color: var(--bg-tertiary);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-sm);
  padding: 12px 14px 12px 40px;
  color: white;
  font-family: inherit;
  font-size: 14px;
  transition: var(--transition-smooth);
}

#filter-search:focus,
.custom-input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 10px rgba(139, 92, 246, 0.2);
}

.custom-select {
  width: 100%;
  background-color: var(--bg-tertiary);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-sm);
  padding: 12px;
  color: white;
  font-family: inherit;
  font-size: 14px;
  cursor: pointer;
  transition: var(--transition-smooth);
}

.custom-select:focus {
  outline: none;
  border-color: var(--color-primary);
}

.custom-slider {
  -webkit-appearance: none;
  width: 100%;
  height: 6px;
  border-radius: 3px;
  background: var(--bg-tertiary);
  outline: none;
}

.custom-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--color-secondary);
  cursor: pointer;
  box-shadow: 0 0 8px var(--color-secondary-glow);
  transition: var(--transition-smooth);
}

.custom-slider::-webkit-slider-thumb:hover {
  transform: scale(1.2);
}

.price-range-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

#price-slider-value {
  font-weight: 700;
  color: var(--color-secondary);
  font-size: 14px;
}

/* Products Content Grid */
.products-container {
  flex: 1;
}

.products-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
}

.results-count {
  font-size: 14px;
  color: var(--text-muted);
  font-weight: 500;
}

.sort-selector {
  display: flex;
  align-items: center;
  gap: 10px;
}

.sort-selector label {
  font-size: 13px;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 4px;
}

.custom-select-small {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-glass);
  border-radius: 30px;
  padding: 8px 16px;
  color: white;
  font-family: inherit;
  font-size: 13px;
  cursor: pointer;
  transition: var(--transition-smooth);
}

.custom-select-small:focus {
  outline: none;
  border-color: var(--color-secondary);
}

.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 24px;
}

/* 7. APP FOOTER */
.app-footer {
  margin-top: auto;
  border-top: 1px solid var(--border-glass);
  background-color: rgba(10, 10, 15, 0.9);
  padding: 30px 24px;
  text-align: center;
  z-index: 5;
}

.footer-container p {
  color: var(--text-dark);
  font-size: 13px;
}

/* Utility / Global Components */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 12px 24px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 600;
  transition: var(--transition-bounce);
  text-align: center;
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  color: white;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 20px rgba(139, 92, 246, 0.4);
}

.btn-secondary {
  background: var(--bg-tertiary);
  border: 1px solid var(--border-glass);
  color: var(--text-primary);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.05);
  border-color: var(--text-muted);
}

.btn-block {
  width: 100%;
}

.btn-glow:hover {
  box-shadow: 0 0 25px rgba(6, 182, 212, 0.35);
}

.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 60px 20px;
  background-color: var(--bg-secondary);
  border: 1px dashed var(--border-glass);
  border-radius: var(--radius-lg);
  color: var(--text-muted);
}

.empty-state i {
  width: 48px;
  height: 48px;
  margin-bottom: 16px;
  color: var(--text-dark);
}

.empty-state h3 {
  color: var(--text-primary);
  margin-bottom: 8px;
  font-family: var(--font-title);
  font-size: 20px;
}

.hidden {
  display: none !important;
}

/* Responsive constraints */
@media (max-width: 1024px) {
  .marketplace-layout {
    flex-direction: column;
  }
  .filters-sidebar {
    width: 100%;
    position: static;
  }
}

@media (max-width: 768px) {
  .hero-banner {
    padding: 40px 24px;
  }
  .hero-content h1 {
    font-size: 32px;
  }
  .header-container {
    padding: 0 16px;
  }
  .nav-btn span {
    display: none;
  }
  .nav-btn {
    padding: 10px;
  }
  .wallet-pill {
    padding: 8px 12px;
    font-size: 12px;
  }
}