:root {
  --bg: #ffffff;
  --bg-card: #ffffff;
  --bg-card-hover: #fafafa;
  --text: #0f172a;
  --text-light: #64748b;
  --border: #e5e7eb;
  --shadow: 0 2px 12px rgba(0,0,0,0.04);
  --shadow-hover: 0 12px 40px rgba(99,102,241,0.1);
  --radius: 16px;
  --transition: 0.35s cubic-bezier(0.22, 1, 0.36, 1);
  --gradient-1: linear-gradient(135deg, #6366f1, #8b5cf6);
  --gradient-2: linear-gradient(135deg, #f472b6, #ec4899);
  --gradient-3: linear-gradient(135deg, #06b6d4, #3b82f6);
  --gradient-4: linear-gradient(135deg, #f59e0b, #ef4444);
  --gradient-5: linear-gradient(135deg, #10b981, #06b6d4);
  --glow-indigo: rgba(99,102,241,0.15);
  --glow-pink: rgba(236,72,153,0.15);
  --glow-cyan: rgba(6,182,212,0.15);
}

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

html { scroll-behavior: smooth; }

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: #ffffff;
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
}

/* Scroll reveal */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease-out, transform 0.7s ease-out;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255,255,255,0.8);
  backdrop-filter: blur(16px) saturate(1.3);
  border-bottom: 1px solid var(--border);
  transition: var(--transition);
}
.site-header.scrolled {
  background: rgba(255,255,255,0.95);
  box-shadow: 0 4px 30px rgba(0,0,0,0.05);
}
.header-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  height: 68px;
  display: flex;
  align-items: center;
  gap: 24px;
}
.site-logo {
  font-size: 1.4rem;
  font-weight: 800;
  background: var(--gradient-1);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  text-decoration: none;
  position: relative;
}
.site-logo::after {
  content: '✨';
  font-size: 0.7rem;
  position: relative;
  top: -8px;
  -webkit-text-fill-color: initial;
}
.nav-links {
  display: flex;
  gap: 24px;
  flex: 1;
}
.nav-links a {
  color: var(--text-light);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  transition: color var(--transition);
  position: relative;
}
.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--gradient-1);
  transition: width var(--transition);
  border-radius: 2px;
}
.nav-links a:hover { color: var(--text); }
.nav-links a:hover::after { width: 100%; }

/* Search */
.search-box {
  display: flex;
  align-items: center;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 8px 14px;
  transition: all var(--transition);
  width: 200px;
}
.search-box:focus-within {
  border-color: #6366f1;
  box-shadow: 0 0 0 4px var(--glow-indigo);
  width: 280px;
}
.search-box input {
  border: none;
  outline: none;
  background: none;
  font-size: 0.85rem;
  color: var(--text);
  width: 100%;
}
.search-box input::placeholder { color: var(--text-light); }
.search-box .icon { color: var(--text-light); font-size: 0.9rem; }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 24px;
  border-radius: 12px;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: all var(--transition);
  text-decoration: none;
  position: relative;
  overflow: hidden;
}
.btn-glow {
  background: var(--gradient-1);
  color: #fff;
  box-shadow: 0 4px 16px var(--glow-indigo);
}
.btn-glow:hover {
  transform: translateY(-2px) scale(1.02);
  box-shadow: 0 8px 30px var(--glow-indigo);
}
.btn-pink {
  background: var(--gradient-2);
  color: #fff;
  box-shadow: 0 4px 16px var(--glow-pink);
}
.btn-pink:hover {
  transform: translateY(-2px) scale(1.02);
  box-shadow: 0 8px 30px var(--glow-pink);
}
.btn-outline {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text);
}
.btn-outline:hover {
  border-color: #6366f1;
  background: rgba(99,102,241,0.06);
  transform: translateY(-1px);
}

/* Hero */
.hero {
  text-align: center;
  padding: 100px 20px 80px;
  position: relative;
  overflow: hidden;
}
.hero h1 {
  font-size: 3.2rem;
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 16px;
  background: linear-gradient(135deg, #1e293b 0%, #6366f1 50%, #d946ef 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  position: relative;
}
.hero h1 .emoji { -webkit-text-fill-color: initial; }
.hero p {
  font-size: 1.15rem;
  color: var(--text-light);
  max-width: 540px;
  margin: 0 auto 32px;
  position: relative;
}
.hero .search-box {
  max-width: 460px;
  margin: 0 auto;
  width: 100%;
  padding: 12px 18px;
  font-size: 1rem;
}
.hero-stats {
  display: flex;
  justify-content: center;
  gap: 40px;
  margin-top: 48px;
  position: relative;
}
.hero-stats .stat {
  text-align: center;
}
.hero-stats .stat .num {
  font-size: 1.8rem;
  font-weight: 800;
  background: var(--gradient-1);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-stats .stat .label {
  font-size: 0.85rem;
  color: var(--text-light);
  margin-top: 2px;
}

/* Section */
.section-wrap {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px 60px;
}
.section-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 24px;
}
.section-header h2 {
  font-size: 1.4rem;
  font-weight: 700;
}
.section-header .emoji { margin-right: 8px; }

/* Category pills - 3D style */
.category-pills {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  padding: 20px 0;
}
.pill {
  padding: 10px 20px;
  border-radius: 14px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--text-light);
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition);
  text-decoration: none;
  white-space: nowrap;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.pill:hover {
  background: var(--bg-card-hover);
  border-color: #6366f1;
  color: var(--text);
  transform: translateY(-3px);
  box-shadow: 0 8px 24px var(--glow-indigo);
}
.pill.active {
  background: var(--gradient-1);
  color: #fff;
  border-color: transparent;
  box-shadow: 0 4px 16px var(--glow-indigo);
}

/* Product card - 3D glass */
.product-card {
  background: var(--bg-card);
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  transition: all var(--transition);
  cursor: pointer;
  text-decoration: none;
  color: inherit;
  perspective: 800px;
  position: relative;
  box-shadow: var(--shadow);
}
.product-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  border-radius: var(--radius);
  background: linear-gradient(135deg, rgba(99,102,241,0.03), transparent);
  opacity: 0;
  transition: opacity var(--transition);
  pointer-events: none;
}
.product-card:hover {
  transform: translateY(-8px) rotateY(2deg);
  border-color: rgba(99,102,241,0.3);
  box-shadow: var(--shadow-hover);
}
.product-card:hover::before { opacity: 1; }
.product-card .cover-wrap {
  position: relative;
  aspect-ratio: 2/3;
  overflow: hidden;
  background: #f1f5f9;
  transition: transform var(--transition);
}
.product-card:hover .cover-wrap {
  transform: rotateY(4deg) scale(1.03);
}
.product-card .cover-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition);
}
.product-card:hover .cover-wrap img {
  transform: scale(1.08);
}
.product-card .info {
  padding: 14px;
}
.product-card .info h3 {
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 4px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.product-card .info .author {
  font-size: 0.8rem;
  color: var(--text-light);
  margin-bottom: 6px;
}
.product-card .info .price {
  font-size: 0.95rem;
  font-weight: 700;
  color: #6366f1;
}

/* Horizontal scroll row */
.scroll-row {
  display: flex;
  gap: 16px;
  overflow-x: auto;
  padding: 8px 0 16px;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
}
.scroll-row::-webkit-scrollbar { height: 4px; }
.scroll-row::-webkit-scrollbar-thumb { background: var(--border); border-radius: 4px; }
.scroll-row::-webkit-scrollbar-track { background: transparent; }
.scroll-row .product-card {
  min-width: 160px;
  max-width: 160px;
  scroll-snap-align: start;
}

/* Product detail */
.product-detail {
  max-width: 1200px;
  margin: 0 auto;
  padding: 24px 20px 60px;
}
.breadcrumbs {
  font-size: 0.85rem;
  color: var(--text-light);
  margin-bottom: 24px;
  animation: slideInLeft 0.5s ease-out;
}
@keyframes slideInLeft {
  from { opacity: 0; transform: translateX(-20px); }
  to { opacity: 1; transform: translateX(0); }
}
.breadcrumbs a { color: #6366f1; text-decoration: none; }
.breadcrumbs a:hover { text-decoration: underline; }
.detail-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
}
.detail-cover {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: 0 20px 60px rgba(0,0,0,0.08);
  transform-style: preserve-3d;
  transition: transform 0.1s ease-out;
}
.detail-cover img {
  width: 100%;
  display: block;
}
.detail-info h1 {
  font-size: 2rem;
  font-weight: 800;
  margin-bottom: 4px;
  background: linear-gradient(135deg, #1e293b, #6366f1);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.detail-info .author {
  font-size: 1.1rem;
  color: var(--text-light);
  margin-bottom: 8px;
}
.detail-info .meta {
  display: flex;
  gap: 16px;
  font-size: 0.85rem;
  color: var(--text-light);
  margin-bottom: 16px;
}
.detail-info .description {
  font-size: 0.95rem;
  line-height: 1.7;
  color: var(--text);
  margin-bottom: 24px;
}
.edition-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 24px;
}
.edition-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px 18px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  transition: all var(--transition);
  cursor: pointer;
}
.edition-item:hover {
  border-color: #6366f1;
  background: var(--bg-card-hover);
  transform: translateX(6px);
  box-shadow: 0 4px 16px var(--glow-indigo);
}
.edition-item .label { font-weight: 600; }
.edition-item .label small {
  display: block;
  font-weight: 400;
  color: var(--text-light);
  font-size: 0.8rem;
}
.edition-item .price {
  font-weight: 700;
  color: #6366f1;
}
.coming-soon-box {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px;
  text-align: center;
  box-shadow: var(--shadow);
}
.coming-soon-box p {
  font-size: 0.9rem;
  color: var(--text-light);
  margin-bottom: 12px;
}

/* Reviews */
.reviews-section { margin-top: 48px; }
.review-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  margin-bottom: 12px;
  transition: var(--transition);
  box-shadow: var(--shadow);
}
.review-card:hover {
  border-color: rgba(99,102,241,0.2);
  box-shadow: var(--shadow-hover);
}
.review-card .review-author {
  font-weight: 600;
  font-size: 0.85rem;
  margin-bottom: 4px;
  color: #6366f1;
}
.review-card .review-text {
  font-size: 0.9rem;
  color: var(--text);
  line-height: 1.6;
}

/* Auth pages */
.auth-page {
  max-width: 420px;
  margin: 60px auto;
  padding: 20px;
}
.auth-page h1 {
  font-size: 1.6rem;
  font-weight: 700;
  text-align: center;
  margin-bottom: 28px;
  background: var(--gradient-1);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.auth-form { display: flex; flex-direction: column; gap: 18px; }
.form-group { display: flex; flex-direction: column; gap: 6px; }
.form-group label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-light);
}
.form-group input, .form-group select {
  padding: 12px 16px;
  border: 1px solid var(--border);
  border-radius: 12px;
  font-size: 0.9rem;
  outline: none;
  transition: var(--transition);
  background: var(--bg-card);
  color: var(--text);
}
.form-group input:focus, .form-group select:focus {
  border-color: #6366f1;
  box-shadow: 0 0 0 4px var(--glow-indigo);
}
.auth-form .btn { width: 100%; justify-content: center; }
.auth-link {
  text-align: center;
  font-size: 0.85rem;
  color: var(--text-light);
  margin-top: 16px;
}
.auth-link a { color: #6366f1; text-decoration: none; }
.auth-link a:hover { text-decoration: underline; }

/* Admin */
.admin-layout {
  max-width: 1200px;
  margin: 0 auto;
  padding: 24px 20px 60px;
}
.admin-form {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.admin-form .full { grid-column: 1 / -1; }
.admin-form textarea {
  padding: 12px 16px;
  border: 1px solid var(--border);
  border-radius: 12px;
  font-size: 0.9rem;
  outline: none;
  resize: vertical;
  min-height: 80px;
  font-family: inherit;
  transition: var(--transition);
  background: var(--bg-card);
  color: var(--text);
}
.admin-form textarea:focus {
  border-color: #6366f1;
  box-shadow: 0 0 0 4px var(--glow-indigo);
}
.admin-table { width: 100%; border-collapse: collapse; }
.admin-table th, .admin-table td {
  text-align: left;
  padding: 12px 14px;
  border-bottom: 1px solid var(--border);
  font-size: 0.9rem;
}
.admin-table th {
  font-weight: 600;
  color: var(--text-light);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.admin-table tr:hover td { background: rgba(99,102,241,0.03); }

/* Dashboard */
.dash-page {
  max-width: 800px;
  margin: 0 auto;
  padding: 40px 20px 60px;
}

/* Footer */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 32px 20px;
  text-align: center;
  color: var(--text-light);
  font-size: 0.85rem;
}

/* Message */
.message {
  padding: 14px 18px;
  border-radius: 12px;
  font-size: 0.9rem;
  animation: slideInLeft 0.3s ease-out;
}
.message-error { background: #fef2f2; color: #991b1b; border: 1px solid #fecaca; }
.message-success { background: #f0fdf4; color: #166534; border: 1px solid #bbf7d0; }

/* Floating share button */
.floating-emoji {
  position: fixed;
  bottom: 24px;
  right: 24px;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--gradient-1);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  cursor: pointer;
  box-shadow: 0 4px 20px var(--glow-indigo);
  transition: var(--transition);
  z-index: 50;
  border: none;
}
.floating-emoji:hover {
  transform: scale(1.1) rotate(10deg);
  box-shadow: 0 8px 30px var(--glow-indigo);
}

/* Product grid fill */
.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 20px;
}

/* Responsive */
@media (max-width: 768px) {
  .nav-links { display: none; }
  .search-box { width: 140px; }
  .search-box:focus-within { width: 180px; }
  .hero h1 { font-size: 2rem; }
  .hero-stats { gap: 20px; flex-wrap: wrap; }
  .product-grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }
  .detail-layout { grid-template-columns: 1fr; }
  .admin-form { grid-template-columns: 1fr; }
  .detail-cover { max-width: 300px; margin: 0 auto; }
  .scroll-row .product-card { min-width: 140px; max-width: 140px; }
}

@media (max-width: 480px) {
  .product-grid { grid-template-columns: repeat(2, 1fr); gap: 10px; }
  .product-card .info { padding: 10px; }
  .product-card .info h3 { font-size: 0.8rem; }
}