/* ===== AUTH PAGE ===== */
.auth-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: radial-gradient(ellipse at top, #e8f5e9 0%, #f5f7fa 60%);
  padding: 2rem 1rem;
  position: relative;
  overflow: hidden;
}
.auth-bg-glow {
  position: absolute;
  width: 500px; height: 500px;
  background: radial-gradient(circle, rgba(0,200,83,0.1) 0%, transparent 70%);
  border-radius: 50%;
  top: -150px; right: -100px;
  pointer-events: none;
}
.auth-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 2.5rem;
  width: 100%;
  max-width: 460px;
  position: relative;
  z-index: 2;
  box-shadow: 0 30px 80px rgba(0,0,0,0.6);
  animation: fadeInUp 0.6s ease;
}
.auth-logo {
  text-align: center;
  margin-bottom: 2rem;
}
.auth-logo-text {
  font-family: 'Poppins', sans-serif;
  font-size: 2rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.auth-logo-sub { color: var(--text-muted); font-size: 0.85rem; margin-top: 0.2rem; }
.auth-tabs {
  display: flex;
  background: var(--bg-card2);
  border-radius: var(--radius);
  padding: 4px;
  margin-bottom: 2rem;
  gap: 4px;
}
.auth-tab {
  flex: 1;
  background: transparent;
  border: none;
  color: var(--text-muted);
  padding: 0.7rem;
  border-radius: calc(var(--radius) - 4px);
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}
.auth-tab.active {
  background: var(--primary);
  color: #000;
  box-shadow: var(--shadow-green);
}
.auth-form { display: none; animation: fadeIn 0.4s ease; }
.auth-form.active { display: block; }
.form-group-custom { margin-bottom: 1.2rem; }
.form-label-custom {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-light);
  margin-bottom: 0.4rem;
  display: block;
}
.form-input-custom {
  background: var(--bg-card2);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-white);
  padding: 0.75rem 1rem;
  font-size: 0.9rem;
  width: 100%;
  outline: none;
  transition: var(--transition);
  font-family: 'Inter', sans-serif;
}
.form-input-custom:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-glow);
}
.form-input-custom::placeholder { color: var(--text-muted); }
.input-icon-wrap { position: relative; }
.input-icon-wrap .form-input-custom { padding-left: 2.8rem; }
.input-icon {
  position: absolute;
  left: 1rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  font-size: 0.9rem;
  pointer-events: none;
}
.input-icon-right {
  position: absolute;
  right: 1rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  font-size: 0.9rem;
  cursor: pointer;
  transition: var(--transition);
}
.input-icon-right:hover { color: var(--primary); }
.form-check-custom {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin-bottom: 1.2rem;
}
.form-check-custom input { accent-color: var(--primary); width: 15px; height: 15px; }
.form-check-custom label { font-size: 0.85rem; color: var(--text-muted); cursor: pointer; }
.form-check-custom a { color: var(--primary); }
.divider-custom {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin: 1.5rem 0;
  color: var(--text-muted);
  font-size: 0.82rem;
}
.divider-custom::before, .divider-custom::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--border);
}
.social-login { display: flex; gap: 0.7rem; }
.social-login-btn {
  flex: 1;
  background: var(--bg-card2);
  border: 1.5px solid var(--border);
  color: var(--text-light);
  border-radius: var(--radius-sm);
  padding: 0.65rem;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}
.social-login-btn:hover { border-color: var(--primary); color: var(--primary); transform: translateY(-2px); }
.auth-footer-text { text-align: center; font-size: 0.83rem; color: var(--text-muted); margin-top: 1.5rem; }
.auth-footer-text a { color: var(--primary); font-weight: 600; }
.strength-bar { height: 4px; border-radius: 2px; background: var(--border); margin-top: 0.4rem; overflow: hidden; }
.strength-fill { height: 100%; border-radius: 2px; transition: var(--transition); width: 0; }
.strength-weak { background: #f44336; width: 33%; }
.strength-medium { background: #ffc107; width: 66%; }
.strength-strong { background: var(--primary); width: 100%; }

/* ===== BOOK DETAIL PAGE ===== */
.breadcrumb-custom {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 1rem 0;
  font-size: 0.85rem;
  color: var(--text-muted);
  flex-wrap: wrap;
}
.breadcrumb-custom a { color: var(--primary); transition: var(--transition); }
.breadcrumb-custom a:hover { text-decoration: underline; }
.breadcrumb-custom i { font-size: 0.7rem; color: var(--text-muted); }
.book-detail-section { padding: 2rem 0 4rem; }
.book-cover-detail {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  text-align: center;
  padding: 1.5rem;
  position: sticky;
  top: 90px;
}
.book-cover-detail-img {
  font-size: 8rem;
  line-height: 1;
  margin-bottom: 1rem;
  animation: float 4s ease-in-out infinite;
  display: block;
}
.book-preview-btn {
  background: transparent;
  border: 1.5px solid var(--primary);
  color: var(--primary);
  border-radius: var(--radius-sm);
  padding: 0.6rem 1.5rem;
  font-weight: 600;
  font-size: 0.88rem;
  cursor: pointer;
  transition: var(--transition);
  width: 100%;
  margin-bottom: 0.6rem;
}
.book-preview-btn:hover { background: var(--primary); color: #000; }
.book-share-row { display: flex; gap: 0.5rem; justify-content: center; margin-top: 1rem; }
.share-btn {
  background: var(--bg-card2);
  border: 1px solid var(--border);
  color: var(--text-muted);
  width: 36px; height: 36px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--transition);
  font-size: 0.9rem;
}
.share-btn:hover { background: var(--primary); color: #000; border-color: var(--primary); }
.book-detail-title {
  font-family: 'Poppins', sans-serif;
  font-size: clamp(1.5rem, 3vw, 2.2rem);
  font-weight: 800;
  color: var(--text-white);
  margin-bottom: 0.6rem;
  line-height: 1.25;
}
.book-detail-author {
  color: var(--text-muted);
  font-size: 1rem;
  margin-bottom: 1rem;
}
.book-detail-author span { color: var(--primary); font-weight: 600; cursor: pointer; }
.book-detail-author span:hover { text-decoration: underline; }
.rating-row {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.2rem;
  flex-wrap: wrap;
}
.rating-big { font-size: 1.6rem; font-weight: 800; color: #ffc107; }
.stars-big i { color: #ffc107; font-size: 1rem; }
.review-count { color: var(--text-muted); font-size: 0.88rem; }
.detail-tags { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-bottom: 1.2rem; }
.detail-tag {
  background: rgba(0,200,83,0.1);
  border: 1px solid rgba(0,200,83,0.25);
  color: var(--primary);
  border-radius: 50px;
  padding: 0.25rem 0.8rem;
  font-size: 0.78rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}
.detail-tag:hover { background: rgba(0,200,83,0.25); }
.price-section {
  background: var(--bg-card2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  margin-bottom: 1.5rem;
}
.price-big { font-size: 2.2rem; font-weight: 900; color: var(--primary); font-family: 'Poppins', sans-serif; }
.price-original { font-size: 1rem; color: var(--text-muted); text-decoration: line-through; margin-left: 0.5rem; }
.price-discount { font-size: 0.85rem; color: #ff7043; font-weight: 700; background: rgba(255,112,67,0.12); padding: 0.2rem 0.6rem; border-radius: 4px; margin-left: 0.5rem; }
.price-row { display: flex; align-items: baseline; flex-wrap: wrap; gap: 0.3rem; margin-bottom: 1rem; }
.formats-row { display: flex; gap: 0.5rem; flex-wrap: wrap; margin-bottom: 1rem; }
.format-btn {
  background: var(--bg-card);
  border: 1.5px solid var(--border);
  color: var(--text-light);
  border-radius: var(--radius-sm);
  padding: 0.5rem 1rem;
  font-size: 0.82rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}
.format-btn.active, .format-btn:hover { border-color: var(--primary); color: var(--primary); background: rgba(0,200,83,0.08); }
.action-buttons { display: flex; gap: 0.8rem; flex-wrap: wrap; }
.btn-buy-now {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #000;
  border: none;
  border-radius: var(--radius-sm);
  padding: 0.85rem 2rem;
  font-size: 1rem;
  font-weight: 800;
  cursor: pointer;
  transition: var(--transition);
  flex: 1;
  min-width: 150px;
  letter-spacing: 0.3px;
}
.btn-buy-now:hover { transform: translateY(-2px); box-shadow: var(--shadow-green); }
.btn-add-cart-detail {
  background: transparent;
  border: 2px solid var(--primary);
  color: var(--primary);
  border-radius: var(--radius-sm);
  padding: 0.85rem 1.5rem;
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.btn-add-cart-detail:hover { background: var(--primary); color: #000; }
.book-meta-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
  margin-bottom: 1.5rem;
}
.meta-item { background: var(--bg-card2); border-radius: var(--radius-sm); padding: 0.8rem; }
.meta-label { font-size: 0.75rem; color: var(--text-muted); margin-bottom: 0.2rem; text-transform: uppercase; letter-spacing: 0.5px; }
.meta-value { font-size: 0.88rem; font-weight: 600; color: var(--text-white); }
.description-section { margin-bottom: 2rem; }
.description-section h4 { font-weight: 700; color: var(--primary); margin-bottom: 0.8rem; font-size: 1rem; }
.description-text { color: var(--text-muted); font-size: 0.9rem; line-height: 1.8; }
.description-text.collapsed { max-height: 100px; overflow: hidden; position: relative; }
.description-text.collapsed::after { content: ''; position: absolute; bottom: 0; left: 0; right: 0; height: 40px; background: linear-gradient(transparent, var(--bg-dark)); }
.read-more-btn { background: none; border: none; color: var(--primary); font-weight: 600; cursor: pointer; font-size: 0.88rem; margin-top: 0.5rem; padding: 0; }
.review-card {
  background: var(--bg-card2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.2rem;
  margin-bottom: 1rem;
  transition: var(--transition);
}
.review-card:hover { border-color: rgba(0,200,83,0.3); }
.review-header { display: flex; align-items: center; gap: 0.8rem; margin-bottom: 0.8rem; }
.reviewer-avatar {
  width: 40px; height: 40px;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #000;
  font-weight: 800;
  font-size: 0.9rem;
}
.reviewer-name { font-weight: 700; font-size: 0.9rem; }
.review-date { font-size: 0.75rem; color: var(--text-muted); }
.review-stars i { color: #ffc107; font-size: 0.8rem; }
.review-text { color: var(--text-muted); font-size: 0.88rem; line-height: 1.6; }
.review-helpful { font-size: 0.78rem; color: var(--text-muted); margin-top: 0.8rem; display: flex; align-items: center; gap: 0.5rem; }
.helpful-btn { background: var(--bg-card); border: 1px solid var(--border); color: var(--text-muted); padding: 0.2rem 0.7rem; border-radius: 50px; font-size: 0.75rem; cursor: pointer; transition: var(--transition); }
.helpful-btn:hover { border-color: var(--primary); color: var(--primary); }
.rating-bar-row { display: flex; align-items: center; gap: 0.8rem; margin-bottom: 0.5rem; }
.rating-bar-label { font-size: 0.8rem; color: var(--text-muted); width: 30px; text-align: right; }
.rating-bar-track { flex: 1; height: 6px; background: var(--bg-card2); border-radius: 3px; overflow: hidden; }
.rating-bar-fill { height: 100%; background: linear-gradient(90deg, var(--primary), var(--primary-light)); border-radius: 3px; transition: width 1s ease; }
.rating-bar-count { font-size: 0.78rem; color: var(--text-muted); width: 25px; }

/* ===== CART PAGE ===== */
.cart-page-section { padding: 2rem 0 4rem; }
.cart-header { margin-bottom: 2rem; }
.cart-table { width: 100%; }
.cart-item {
  display: flex;
  align-items: center;
  gap: 1.2rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.2rem;
  margin-bottom: 1rem;
  transition: var(--transition);
  animation: fadeInUp 0.4s ease both;
}
.cart-item:hover { border-color: rgba(0,200,83,0.3); }
.cart-item-cover {
  font-size: 3rem;
  width: 70px;
  height: 90px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-card2);
  border-radius: var(--radius-sm);
  flex-shrink: 0;
}
.cart-item-info { flex: 1; min-width: 0; }
.cart-item-title { font-weight: 700; font-size: 0.95rem; margin-bottom: 0.2rem; color: var(--text-white); }
.cart-item-author { font-size: 0.82rem; color: var(--text-muted); margin-bottom: 0.4rem; }
.cart-item-format { font-size: 0.75rem; color: var(--primary); background: rgba(0,200,83,0.1); padding: 0.15rem 0.5rem; border-radius: 4px; display: inline-block; }
.cart-qty { display: flex; align-items: center; gap: 0.5rem; }
.qty-btn {
  background: var(--bg-card2);
  border: 1px solid var(--border);
  color: var(--text-white);
  width: 30px; height: 30px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}
.qty-btn:hover { background: var(--primary); color: #000; border-color: var(--primary); }
.qty-num { font-weight: 700; min-width: 20px; text-align: center; }
.cart-item-price { font-size: 1.1rem; font-weight: 800; color: var(--primary); text-align: right; }
.cart-remove {
  background: transparent;
  border: none;
  color: rgba(255,80,80,0.6);
  cursor: pointer;
  font-size: 1.1rem;
  padding: 0.3rem;
  transition: var(--transition);
}
.cart-remove:hover { color: #f44336; transform: scale(1.2); }
.cart-summary {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.8rem;
  position: sticky;
  top: 90px;
  animation: slideInRight 0.6s ease;
}
.cart-summary-title { font-family: 'Poppins', sans-serif; font-weight: 700; font-size: 1.2rem; margin-bottom: 1.5rem; }
.summary-row { display: flex; justify-content: space-between; margin-bottom: 0.9rem; font-size: 0.9rem; }
.summary-row .label { color: var(--text-muted); }
.summary-row .value { font-weight: 600; }
.summary-divider { border: none; border-top: 1px solid var(--border); margin: 1rem 0; }
.summary-total { font-size: 1.2rem; font-weight: 800; }
.summary-total .value { color: var(--primary); font-size: 1.4rem; }
.coupon-row { display: flex; gap: 0.5rem; margin-bottom: 1.2rem; }
.coupon-input {
  flex: 1;
  background: var(--bg-card2);
  border: 1.5px solid var(--border);
  color: var(--text-white);
  border-radius: var(--radius-sm);
  padding: 0.6rem 1rem;
  font-size: 0.85rem;
  outline: none;
  transition: var(--transition);
}
.coupon-input:focus { border-color: var(--primary); }
.coupon-apply {
  background: var(--primary);
  border: none;
  color: #000;
  border-radius: var(--radius-sm);
  padding: 0.6rem 1rem;
  font-weight: 700;
  cursor: pointer;
  font-size: 0.85rem;
  transition: var(--transition);
}
.coupon-apply:hover { background: var(--primary-light); }
.cart-empty {
  text-align: center;
  padding: 5rem 2rem;
  animation: fadeIn 0.5s ease;
}
.cart-empty-icon { font-size: 5rem; display: block; margin-bottom: 1.5rem; opacity: 0.4; }
.cart-empty h3 { font-family: 'Poppins', sans-serif; font-weight: 700; margin-bottom: 0.5rem; }
.cart-empty p { color: var(--text-muted); margin-bottom: 2rem; }
.secure-checkout { display: flex; align-items: center; justify-content: center; gap: 0.5rem; color: var(--text-muted); font-size: 0.8rem; margin-top: 1rem; }
.secure-checkout i { color: var(--primary); }
.checkout-btn {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  border: none;
  color: #000;
  font-weight: 800;
  border-radius: var(--radius-sm);
  padding: 1rem;
  width: 100%;
  font-size: 1rem;
  cursor: pointer;
  transition: var(--transition);
  letter-spacing: 0.3px;
  animation: glowPulse 2.5s ease-in-out infinite;
}
.checkout-btn:hover { transform: translateY(-2px); box-shadow: var(--shadow-green); }
.wishlist-section { margin-top: 1.2rem; border-top: 1px solid var(--border); padding-top: 1rem; }
.wishlist-label { font-size: 0.82rem; color: var(--text-muted); display: flex; align-items: center; gap: 0.4rem; }
.wishlist-label i { color: #ff4d6d; }

/* ===== RESPONSIVE PAGES ===== */
@media (max-width: 768px) {
  .auth-card { padding: 1.8rem; }
  .cart-item { flex-wrap: wrap; }
  .cart-item-info { width: calc(100% - 90px); }
  .cart-item-price { margin-left: auto; }
  .cart-summary { position: static; margin-top: 2rem; }
  .book-cover-detail { position: static; margin-bottom: 2rem; }
  .book-meta-grid { grid-template-columns: 1fr; }
  .action-buttons { flex-direction: column; }
  .btn-add-cart-detail { justify-content: center; }
}