/* ============================================
   FurFirst — Pet Product Marketplace
   Design System & Global Styles
   ============================================ */

*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

:root {
  --spark: #FF6B2C;
  --spark-light: #FF8F5C;
  --spark-glow: rgba(255, 107, 44, 0.15);
  --spark-dark: #CC5523;
  --green: #22C55E;
  --green-glow: rgba(34, 197, 94, 0.15);
  --blue: #3B82F6;
  --blue-glow: rgba(59, 130, 246, 0.15);
  --red: #EF4444;
  --dark: #0A0A0B;
  --dark-surface: #141416;
  --dark-card: #1A1A1E;
  --dark-border: #2A2A2F;
  --dark-hover: #222228;
  --text-primary: #F5F5F7;
  --text-secondary: #9A9AA0;
  --text-muted: #6A6A70;
  --radius-sm: 8px;
  --radius: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --shadow: 0 4px 24px rgba(0,0,0,0.3);
  --transition: 0.2s ease;
}

html { scroll-behavior: smooth; }

body {
  font-family: 'DM Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--dark);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  min-height: 100vh;
}

h1, h2, h3, h4, h5 { font-family: 'Space Grotesk', sans-serif; line-height: 1.2; }
a { color: var(--spark); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--spark-light); }
img { max-width: 100%; display: block; }
button { cursor: pointer; font-family: inherit; }

/* ============================================
   Navigation
   ============================================ */

nav {
  position: fixed;
  top: 0;
  width: 100%;
  z-index: 100;
  padding: 0 40px;
  height: 64px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: rgba(10, 10, 11, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--dark-border);
}

.logo {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  font-size: 1.3rem;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
}

.logo-icon {
  width: 32px;
  height: 32px;
  background: var(--spark);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-link {
  font-size: 0.9rem;
  color: var(--text-secondary);
  font-weight: 500;
  transition: color var(--transition);
  text-decoration: none;
  position: relative;
}

.nav-link:hover, .nav-link.active {
  color: var(--text-primary);
}

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--spark);
  border-radius: 1px;
}

.cart-link {
  position: relative;
  display: flex;
  align-items: center;
  gap: 4px;
}

.cart-icon { font-size: 1.2rem; }

.cart-badge, .mobile-badge {
  background: var(--spark);
  color: #fff;
  font-size: 0.65rem;
  font-weight: 700;
  min-width: 18px;
  height: 18px;
  border-radius: 9px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 5px;
}

.cart-badge {
  position: absolute;
  top: -8px;
  right: -12px;
}

/* Mobile menu */
.mobile-menu-btn {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  padding: 4px;
}

.mobile-menu-btn span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 1px;
  transition: var(--transition);
}

.mobile-menu {
  display: none;
  position: fixed;
  top: 64px;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--dark);
  z-index: 99;
  flex-direction: column;
  padding: 20px;
  gap: 4px;
}

.mobile-menu.open {
  display: flex;
}

.mobile-menu a {
  padding: 16px;
  font-size: 1.1rem;
  color: var(--text-primary);
  border-radius: var(--radius);
  transition: background var(--transition);
  display: flex;
  align-items: center;
  gap: 8px;
}

.mobile-menu a:hover {
  background: var(--dark-surface);
}

@media (max-width: 768px) {
  nav { padding: 0 16px; }
  .nav-links { display: none; }
  .mobile-menu-btn { display: flex; }
}

/* ============================================
   Buttons
   ============================================ */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-weight: 600;
  border: none;
  border-radius: var(--radius);
  cursor: pointer;
  transition: all var(--transition);
  font-size: 0.9rem;
  padding: 12px 24px;
  text-decoration: none;
}

.btn-primary {
  background: var(--spark);
  color: #fff;
}
.btn-primary:hover {
  background: var(--spark-light);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(255, 107, 44, 0.3);
}

.btn-secondary {
  background: transparent;
  color: var(--text-primary);
  border: 1px solid var(--dark-border);
}
.btn-secondary:hover {
  border-color: var(--spark);
  color: var(--spark);
}

.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
  padding: 8px 16px;
}
.btn-ghost:hover { color: var(--text-primary); }

.btn-sm { padding: 8px 16px; font-size: 0.8rem; border-radius: var(--radius-sm); }
.btn-lg { padding: 16px 32px; font-size: 1rem; border-radius: var(--radius-lg); }
.btn-block { width: 100%; }

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

.btn-danger { background: var(--red); color: #fff; }
.btn-danger:hover { background: #dc2626; color: #fff; }

/* ============================================
   Forms
   ============================================ */

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-bottom: 6px;
  font-weight: 500;
}

.form-input, .form-select, .form-textarea {
  width: 100%;
  padding: 12px 16px;
  background: var(--dark-surface);
  border: 1px solid var(--dark-border);
  border-radius: var(--radius);
  color: var(--text-primary);
  font-size: 0.95rem;
  font-family: inherit;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.form-input:focus, .form-select:focus, .form-textarea:focus {
  outline: none;
  border-color: var(--spark);
  box-shadow: 0 0 0 3px var(--spark-glow);
}

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

.form-textarea {
  min-height: 120px;
  resize: vertical;
}

.form-select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%239A9AA0' viewBox='0 0 16 16'%3E%3Cpath d='M8 11L3 6h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 36px;
}

.form-select option { background: var(--dark-card); }

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

@media (max-width: 480px) {
  .form-row { grid-template-columns: 1fr; }
}

.form-error {
  color: var(--red);
  font-size: 0.8rem;
  margin-top: 4px;
}

/* ============================================
   Cards
   ============================================ */

.card {
  background: var(--dark-card);
  border: 1px solid var(--dark-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
}

.card:hover {
  border-color: rgba(255, 107, 44, 0.3);
}

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

/* ============================================
   Badges
   ============================================ */

.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 0.75rem;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: 20px;
  text-transform: capitalize;
}

.badge-spark { background: var(--spark-glow); color: var(--spark); border: 1px solid rgba(255,107,44,0.3); }
.badge-green { background: var(--green-glow); color: var(--green); border: 1px solid rgba(34,197,94,0.3); }
.badge-blue { background: var(--blue-glow); color: var(--blue); border: 1px solid rgba(59,130,246,0.3); }
.badge-muted { background: var(--dark-surface); color: var(--text-muted); border: 1px solid var(--dark-border); }
.badge-featured { background: var(--spark); color: #fff; font-size: 0.7rem; }

/* ============================================
   Hero Section
   ============================================ */

.hero {
  min-height: 90vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  padding: 120px 20px 80px;
  position: relative;
  overflow: hidden;
}

.hero .glow-orb {
  position: absolute;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(255, 107, 44, 0.08) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.hero .glow-orb-1 { top: -10%; right: -5%; }
.hero .glow-orb-2 { bottom: -20%; left: -10%; opacity: 0.5; }

.hero-label {
  font-size: 0.85rem;
  color: var(--spark);
  text-transform: uppercase;
  letter-spacing: 3px;
  font-weight: 600;
  margin-bottom: 24px;
}

.hero h1 {
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  font-weight: 700;
  line-height: 1.1;
  margin-bottom: 24px;
  max-width: 800px;
}

.hero h1 .highlight { color: var(--spark); }

.hero-sub {
  font-size: 1.15rem;
  color: var(--text-secondary);
  max-width: 560px;
  line-height: 1.7;
  margin-bottom: 40px;
}

/* Search bar */
.search-bar {
  display: flex;
  width: 100%;
  max-width: 540px;
  background: var(--dark-surface);
  border: 1px solid var(--dark-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: border-color var(--transition);
}

.search-bar:focus-within {
  border-color: var(--spark);
}

.search-bar input {
  flex: 1;
  padding: 14px 20px;
  background: none;
  border: none;
  color: var(--text-primary);
  font-size: 1rem;
  font-family: inherit;
  outline: none;
}

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

.search-bar button {
  padding: 14px 24px;
  background: var(--spark);
  border: none;
  color: #fff;
  font-weight: 600;
  font-size: 0.9rem;
  cursor: pointer;
  transition: background var(--transition);
}

.search-bar button:hover { background: var(--spark-light); }

/* ============================================
   Category Cards
   ============================================ */

.categories-row {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  margin-top: 48px;
}

.category-card {
  display: flex;
  align-items: center;
  gap: 12px;
  background: var(--dark-card);
  border: 1px solid var(--dark-border);
  border-radius: var(--radius);
  padding: 16px 24px;
  cursor: pointer;
  transition: all var(--transition);
  text-decoration: none;
  color: var(--text-primary);
  min-width: 160px;
  justify-content: center;
}

.category-card:hover {
  border-color: var(--spark);
  transform: translateY(-2px);
  color: var(--text-primary);
}

.category-card .cat-icon {
  font-size: 1.5rem;
}

.category-card .cat-name {
  font-weight: 600;
  font-size: 0.9rem;
}

/* ============================================
   Section Layouts
   ============================================ */

.section {
  padding: 80px 20px;
  max-width: 1200px;
  margin: 0 auto;
}

.section-dark {
  background: var(--dark-surface);
  border-top: 1px solid var(--dark-border);
  border-bottom: 1px solid var(--dark-border);
}

.section-dark .section {
  padding-left: 20px;
  padding-right: 20px;
}

.section-header {
  margin-bottom: 48px;
}

.section-header h2 {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.section-header p {
  color: var(--text-secondary);
  font-size: 1.05rem;
}

.section-header-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
}

/* ============================================
   Product Grid
   ============================================ */

.product-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.product-card {
  cursor: pointer;
}

.product-card .product-image {
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
  border-radius: var(--radius) var(--radius) 0 0;
  background: var(--dark-surface);
}

.product-card .product-info {
  padding: 16px;
}

.product-card .product-name {
  font-weight: 600;
  font-size: 0.95rem;
  margin-bottom: 4px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.product-card .product-seller {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 8px;
}

.product-card .product-price-row {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 12px;
}

.product-card .product-price {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--spark);
}

.product-card .product-compare {
  font-size: 0.85rem;
  color: var(--text-muted);
  text-decoration: line-through;
}

.product-card .product-badges {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  margin-bottom: 12px;
}

.product-card .add-to-cart-btn {
  width: 100%;
  padding: 10px;
  background: var(--dark-surface);
  border: 1px solid var(--dark-border);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-weight: 600;
  font-size: 0.85rem;
  cursor: pointer;
  transition: all var(--transition);
}

.product-card .add-to-cart-btn:hover {
  background: var(--spark);
  border-color: var(--spark);
}

.featured-badge-pos {
  position: absolute;
  top: 12px;
  left: 12px;
  z-index: 2;
}

.product-image-wrap {
  position: relative;
  overflow: hidden;
}

@media (max-width: 1024px) {
  .product-grid { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 768px) {
  .product-grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }
}
@media (max-width: 480px) {
  .product-grid { grid-template-columns: 1fr; }
}

/* ============================================
   Product Detail
   ============================================ */

.product-detail {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  padding-top: 100px;
  max-width: 1100px;
  margin: 0 auto;
  padding-left: 20px;
  padding-right: 20px;
  padding-bottom: 60px;
}

.product-detail-image {
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
  border-radius: var(--radius-lg);
  background: var(--dark-surface);
}

.product-detail-info h1 {
  font-size: 2rem;
  margin-bottom: 8px;
}

.product-detail-price {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 2rem;
  font-weight: 700;
  color: var(--spark);
  margin-bottom: 4px;
}

.product-detail-compare {
  font-size: 1.1rem;
  color: var(--text-muted);
  text-decoration: line-through;
  margin-bottom: 16px;
}

.product-detail-desc {
  color: var(--text-secondary);
  line-height: 1.8;
  margin: 24px 0;
  font-size: 1rem;
}

.quantity-selector {
  display: flex;
  align-items: center;
  gap: 0;
  margin: 24px 0;
  border: 1px solid var(--dark-border);
  border-radius: var(--radius);
  display: inline-flex;
  overflow: hidden;
}

.quantity-selector button {
  width: 44px;
  height: 44px;
  background: var(--dark-surface);
  border: none;
  color: var(--text-primary);
  font-size: 1.2rem;
  cursor: pointer;
  transition: background var(--transition);
}

.quantity-selector button:hover { background: var(--dark-hover); }

.quantity-selector span {
  width: 52px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  font-size: 1rem;
  border-left: 1px solid var(--dark-border);
  border-right: 1px solid var(--dark-border);
}

.seller-card {
  margin-top: 32px;
  padding: 20px;
  background: var(--dark-surface);
  border: 1px solid var(--dark-border);
  border-radius: var(--radius);
}

.seller-card h4 {
  font-size: 0.85rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 8px;
}

.seller-card .seller-name {
  font-weight: 600;
  font-size: 1rem;
}

.seller-card .seller-desc {
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-top: 4px;
}

@media (max-width: 768px) {
  .product-detail {
    grid-template-columns: 1fr;
    gap: 24px;
    padding-top: 80px;
  }
}

/* ============================================
   Filter Tabs
   ============================================ */

.filter-tabs {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 24px;
}

.filter-tab {
  padding: 8px 20px;
  background: var(--dark-card);
  border: 1px solid var(--dark-border);
  border-radius: 24px;
  color: var(--text-secondary);
  font-size: 0.85rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition);
  white-space: nowrap;
}

.filter-tab:hover {
  border-color: var(--spark);
  color: var(--text-primary);
}

.filter-tab.active {
  background: var(--spark);
  border-color: var(--spark);
  color: #fff;
}

/* ============================================
   Cart Page
   ============================================ */

.cart-layout {
  display: grid;
  grid-template-columns: 1fr 360px;
  gap: 32px;
  padding-top: 100px;
  max-width: 1100px;
  margin: 0 auto;
  padding-left: 20px;
  padding-right: 20px;
  padding-bottom: 60px;
  min-height: 60vh;
}

.cart-item {
  display: flex;
  gap: 16px;
  padding: 20px;
  background: var(--dark-card);
  border: 1px solid var(--dark-border);
  border-radius: var(--radius);
  margin-bottom: 12px;
}

.cart-item-image {
  width: 80px;
  height: 80px;
  object-fit: cover;
  border-radius: var(--radius-sm);
  flex-shrink: 0;
}

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

.cart-item-name {
  font-weight: 600;
  margin-bottom: 4px;
}

.cart-item-seller {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 8px;
}

.cart-item-price {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  color: var(--spark);
}

.cart-item-actions {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  justify-content: space-between;
}

.cart-item-remove {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 1.2rem;
  padding: 4px;
  transition: color var(--transition);
}

.cart-item-remove:hover { color: var(--red); }

.cart-qty {
  display: flex;
  align-items: center;
  gap: 0;
  border: 1px solid var(--dark-border);
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.cart-qty button {
  width: 32px;
  height: 32px;
  background: var(--dark-surface);
  border: none;
  color: var(--text-primary);
  cursor: pointer;
  font-size: 1rem;
  transition: background var(--transition);
}

.cart-qty button:hover { background: var(--dark-hover); }

.cart-qty span {
  width: 36px;
  text-align: center;
  font-weight: 600;
  font-size: 0.9rem;
  border-left: 1px solid var(--dark-border);
  border-right: 1px solid var(--dark-border);
  line-height: 32px;
}

.cart-summary {
  background: var(--dark-card);
  border: 1px solid var(--dark-border);
  border-radius: var(--radius-lg);
  padding: 24px;
  position: sticky;
  top: 84px;
  height: fit-content;
}

.cart-summary h3 {
  font-size: 1.1rem;
  margin-bottom: 20px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--dark-border);
}

.cart-summary-row {
  display: flex;
  justify-content: space-between;
  margin-bottom: 12px;
  font-size: 0.95rem;
}

.cart-summary-row.total {
  font-weight: 700;
  font-size: 1.15rem;
  padding-top: 16px;
  border-top: 1px solid var(--dark-border);
  margin-top: 8px;
}

.cart-summary-row.total .price { color: var(--spark); font-family: 'Space Grotesk', sans-serif; }

@media (max-width: 768px) {
  .cart-layout { grid-template-columns: 1fr; padding-top: 80px; }
  .cart-summary { position: static; }
}

/* ============================================
   Checkout
   ============================================ */

.checkout-layout {
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: 32px;
  padding-top: 100px;
  max-width: 1100px;
  margin: 0 auto;
  padding-left: 20px;
  padding-right: 20px;
  padding-bottom: 60px;
}

@media (max-width: 768px) {
  .checkout-layout { grid-template-columns: 1fr; padding-top: 80px; }
}

/* ============================================
   Order Confirmation
   ============================================ */

.confirmation-page {
  min-height: 70vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 120px 20px 80px;
}

.confirmation-check {
  width: 80px;
  height: 80px;
  background: var(--green-glow);
  border: 2px solid var(--green);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  margin-bottom: 24px;
  animation: scaleIn 0.4s ease;
}

@keyframes scaleIn {
  0% { transform: scale(0); opacity: 0; }
  50% { transform: scale(1.2); }
  100% { transform: scale(1); opacity: 1; }
}

.confirmation-page h1 {
  font-size: 2rem;
  margin-bottom: 12px;
}

.confirmation-page .order-number {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.3rem;
  color: var(--spark);
  margin-bottom: 8px;
}

.confirmation-page p {
  color: var(--text-secondary);
  margin-bottom: 32px;
}

/* ============================================
   Q&A Section
   ============================================ */

.qa-hero {
  text-align: center;
  padding: 120px 20px 40px;
}

.qa-hero h1 {
  font-size: clamp(2rem, 4vw, 3rem);
  margin-bottom: 12px;
}

.qa-hero p {
  color: var(--text-secondary);
  font-size: 1.1rem;
  max-width: 500px;
  margin: 0 auto 32px;
}

.question-card {
  padding: 24px;
  margin-bottom: 12px;
  cursor: pointer;
}

.question-card:hover {
  border-color: var(--spark);
}

.question-card h3 {
  font-size: 1.05rem;
  margin-bottom: 8px;
  line-height: 1.4;
}

.question-card .question-excerpt {
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-bottom: 12px;
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.question-card .question-meta {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  font-size: 0.8rem;
  color: var(--text-muted);
}

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

/* Question Detail */
.question-detail {
  max-width: 800px;
  margin: 0 auto;
  padding: 100px 20px 60px;
}

.question-detail .question-header {
  margin-bottom: 32px;
}

.question-detail .question-header h1 {
  font-size: 1.8rem;
  margin-bottom: 16px;
  line-height: 1.3;
}

.question-detail .question-body {
  color: var(--text-secondary);
  line-height: 1.8;
  font-size: 1.05rem;
  margin-bottom: 32px;
  padding-bottom: 32px;
  border-bottom: 1px solid var(--dark-border);
}

.answer-card {
  padding: 24px;
  margin-bottom: 16px;
  background: var(--dark-card);
  border: 1px solid var(--dark-border);
  border-radius: var(--radius);
  border-left: 3px solid var(--spark);
}

.answer-card .answer-author {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 12px;
}

.answer-card .answer-author-name {
  font-weight: 600;
}

.answer-card .answer-body {
  color: var(--text-secondary);
  line-height: 1.8;
}

.answer-card .answer-body strong { color: var(--text-primary); }

/* ============================================
   Seller Pages
   ============================================ */

.sell-hero {
  text-align: center;
  padding: 120px 20px 60px;
}

.sell-hero h1 {
  font-size: clamp(2rem, 4vw, 3rem);
  margin-bottom: 16px;
}

.sell-hero p {
  color: var(--text-secondary);
  font-size: 1.1rem;
  max-width: 500px;
  margin: 0 auto;
}

.benefits-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  max-width: 900px;
  margin: 48px auto;
  padding: 0 20px;
}

.benefit-card {
  text-align: center;
  padding: 32px 20px;
  background: var(--dark-card);
  border: 1px solid var(--dark-border);
  border-radius: var(--radius-lg);
}

.benefit-card .benefit-icon {
  font-size: 2rem;
  margin-bottom: 12px;
}

.benefit-card h3 {
  font-size: 1rem;
  margin-bottom: 8px;
}

.benefit-card p {
  color: var(--text-secondary);
  font-size: 0.85rem;
}

@media (max-width: 768px) {
  .benefits-grid { grid-template-columns: 1fr; }
}

.auth-form-wrap {
  max-width: 480px;
  margin: 0 auto;
  padding: 0 20px 60px;
}

.auth-form-wrap .card {
  padding: 32px;
}

.auth-form-wrap h2 {
  font-size: 1.5rem;
  margin-bottom: 24px;
  text-align: center;
}

/* Seller Dashboard */
.dashboard-page {
  padding-top: 100px;
  max-width: 1100px;
  margin: 0 auto;
  padding-left: 20px;
  padding-right: 20px;
  padding-bottom: 60px;
  min-height: 70vh;
}

.dashboard-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 32px;
  flex-wrap: wrap;
  gap: 16px;
}

.dashboard-header h1 {
  font-size: 1.8rem;
}

.dashboard-tabs {
  display: flex;
  gap: 4px;
  margin-bottom: 24px;
  border-bottom: 1px solid var(--dark-border);
}

.dashboard-tab {
  padding: 12px 24px;
  background: none;
  border: none;
  color: var(--text-muted);
  font-weight: 500;
  font-size: 0.9rem;
  cursor: pointer;
  border-bottom: 2px solid transparent;
  transition: all var(--transition);
  margin-bottom: -1px;
}

.dashboard-tab:hover { color: var(--text-primary); }
.dashboard-tab.active { color: var(--spark); border-bottom-color: var(--spark); }

.product-table {
  width: 100%;
}

.product-table-item {
  display: grid;
  grid-template-columns: 60px 1fr 100px 80px 120px;
  gap: 16px;
  align-items: center;
  padding: 16px;
  border: 1px solid var(--dark-border);
  border-radius: var(--radius);
  margin-bottom: 8px;
  background: var(--dark-card);
}

.product-table-item img {
  width: 60px;
  height: 60px;
  object-fit: cover;
  border-radius: var(--radius-sm);
}

.product-table-item .item-name {
  font-weight: 600;
}

.product-table-item .item-price {
  color: var(--spark);
  font-weight: 600;
  font-family: 'Space Grotesk', sans-serif;
}

.product-table-item .item-stock {
  color: var(--text-muted);
  font-size: 0.85rem;
}

.product-table-item .item-actions {
  display: flex;
  gap: 8px;
}

@media (max-width: 768px) {
  .product-table-item {
    grid-template-columns: 50px 1fr;
    gap: 8px;
  }
  .product-table-item .item-price,
  .product-table-item .item-stock,
  .product-table-item .item-actions { grid-column: 2; }
  .dashboard-page { padding-top: 80px; }
}

/* Add Product Modal */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0,0,0,0.7);
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.modal {
  background: var(--dark-card);
  border: 1px solid var(--dark-border);
  border-radius: var(--radius-lg);
  padding: 32px;
  width: 100%;
  max-width: 560px;
  max-height: 90vh;
  overflow-y: auto;
}

.modal h2 {
  font-size: 1.3rem;
  margin-bottom: 24px;
}

.modal-close {
  float: right;
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 1.5rem;
  cursor: pointer;
  padding: 4px;
  line-height: 1;
}

.modal-close:hover { color: var(--text-primary); }

/* ============================================
   Toast Notifications
   ============================================ */

.toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 300;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.toast {
  padding: 14px 20px;
  background: var(--dark-card);
  border: 1px solid var(--dark-border);
  border-radius: var(--radius);
  color: var(--text-primary);
  font-size: 0.9rem;
  box-shadow: var(--shadow);
  animation: slideInRight 0.3s ease;
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 250px;
}

.toast-success { border-left: 3px solid var(--green); }
.toast-error { border-left: 3px solid var(--red); }

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

@keyframes fadeOut {
  to { opacity: 0; transform: translateX(50px); }
}

/* ============================================
   Loading States
   ============================================ */

.spinner {
  width: 32px;
  height: 32px;
  border: 3px solid var(--dark-border);
  border-top-color: var(--spark);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  margin: 40px auto;
}

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

.skeleton {
  background: linear-gradient(90deg, var(--dark-card) 25%, var(--dark-hover) 50%, var(--dark-card) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
  border-radius: var(--radius);
}

@keyframes shimmer { to { background-position: -200% 0; } }

.skeleton-card {
  height: 320px;
  border-radius: var(--radius-lg);
}

.skeleton-text {
  height: 16px;
  margin-bottom: 8px;
  width: 80%;
}

.skeleton-text-sm { height: 12px; width: 60%; }

/* ============================================
   Empty States
   ============================================ */

.empty-state {
  text-align: center;
  padding: 60px 20px;
}

.empty-state .empty-icon {
  font-size: 4rem;
  margin-bottom: 16px;
  opacity: 0.5;
}

.empty-state h3 {
  font-size: 1.3rem;
  margin-bottom: 8px;
}

.empty-state p {
  color: var(--text-secondary);
  margin-bottom: 24px;
  max-width: 400px;
  margin-left: auto;
  margin-right: auto;
}

/* ============================================
   Stats Row
   ============================================ */

.stats-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  max-width: 900px;
  margin: 0 auto;
}

.stat-card {
  text-align: center;
  padding: 28px 16px;
  background: var(--dark-card);
  border: 1px solid var(--dark-border);
  border-radius: var(--radius-lg);
}

.stat-card .stat-number {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 2rem;
  font-weight: 700;
  color: var(--spark);
  display: block;
}

.stat-card .stat-label {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-top: 4px;
}

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

@media (max-width: 480px) {
  .stats-row { grid-template-columns: 1fr 1fr; gap: 12px; }
  .stat-card { padding: 20px 12px; }
  .stat-card .stat-number { font-size: 1.5rem; }
}

/* ============================================
   CTA Section
   ============================================ */

.cta-section {
  text-align: center;
  padding: 80px 20px;
  position: relative;
}

.cta-section .glow-orb {
  position: absolute;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(255, 107, 44, 0.06) 0%, transparent 70%);
  border-radius: 50%;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  pointer-events: none;
}

.cta-section h2 {
  font-size: clamp(1.8rem, 3.5vw, 2.5rem);
  margin-bottom: 16px;
  position: relative;
}

.cta-section p {
  color: var(--text-secondary);
  margin-bottom: 32px;
  font-size: 1.05rem;
  position: relative;
}

/* ============================================
   Shop Page
   ============================================ */

.shop-page {
  padding-top: 100px;
  max-width: 1200px;
  margin: 0 auto;
  padding-left: 20px;
  padding-right: 20px;
  padding-bottom: 60px;
  min-height: 70vh;
}

.shop-filters {
  display: flex;
  gap: 16px;
  align-items: center;
  flex-wrap: wrap;
  margin-bottom: 24px;
}

.shop-search {
  flex: 1;
  min-width: 200px;
  max-width: 400px;
}

.shop-search input {
  width: 100%;
  padding: 10px 16px;
  background: var(--dark-surface);
  border: 1px solid var(--dark-border);
  border-radius: 24px;
  color: var(--text-primary);
  font-size: 0.9rem;
  outline: none;
  transition: border-color var(--transition);
}

.shop-search input:focus { border-color: var(--spark); }

@media (max-width: 768px) {
  .shop-page { padding-top: 80px; }
  .shop-filters { flex-direction: column; align-items: stretch; }
  .shop-search { max-width: none; }
}

/* ============================================
   Footer
   ============================================ */

footer {
  border-top: 1px solid var(--dark-border);
  background: var(--dark-surface);
}

.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 60px 20px 40px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
}

.footer-brand p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-top: 12px;
  max-width: 350px;
}

.footer-links {
  display: flex;
  gap: 60px;
  justify-content: flex-end;
}

.footer-col h4 {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-muted);
  margin-bottom: 16px;
}

.footer-col a {
  display: block;
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-bottom: 10px;
  transition: color var(--transition);
}

.footer-col a:hover { color: var(--text-primary); }

.footer-bottom {
  border-top: 1px solid var(--dark-border);
  padding: 20px;
  text-align: center;
}

.footer-bottom p {
  color: var(--text-muted);
  font-size: 0.85rem;
}

.footer-bottom a { color: var(--spark); }

@media (max-width: 768px) {
  .footer-inner { grid-template-columns: 1fr; }
  .footer-links { justify-content: flex-start; gap: 40px; }
}

/* ============================================
   Page Transitions
   ============================================ */

#app {
  animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ============================================
   Back Link
   ============================================ */

.back-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-bottom: 24px;
  transition: color var(--transition);
}

.back-link:hover { color: var(--text-primary); }

/* ============================================
   Order table
   ============================================ */

.order-card {
  background: var(--dark-card);
  border: 1px solid var(--dark-border);
  border-radius: var(--radius);
  padding: 20px;
  margin-bottom: 12px;
}

.order-card .order-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
  flex-wrap: wrap;
  gap: 8px;
}

.order-card .order-header h4 {
  font-size: 0.95rem;
}

.order-card .order-items {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.order-card .order-items li {
  list-style: none;
  padding: 4px 0;
}

/* Utility */
.text-center { text-align: center; }
.mt-4 { margin-top: 32px; }
.mb-2 { margin-bottom: 16px; }
.mb-4 { margin-bottom: 32px; }
.gap-2 { gap: 16px; }
.flex { display: flex; }
.flex-wrap { flex-wrap: wrap; }
.items-center { align-items: center; }