/* ===================================================
   NAILYZA Component System
   =================================================== */

/* 1. Header Navigation */
.site-header {
  position: sticky;
  top: 0;
  left: 0;
  width: 100%;
  max-width: 100vw;
  height: var(--header-height);
  background: rgba(250, 248, 245, 0.92);
  backdrop-filter: blur(20px) saturate(160%);
  -webkit-backdrop-filter: blur(20px) saturate(160%);
  border-bottom: 1px solid var(--border-subtle);
  z-index: 1000;
  transition: all var(--transition-base);
  box-sizing: border-box;
}

.site-header.scrolled {
  height: 68px;
  background: rgba(250, 248, 245, 0.98);
  box-shadow: var(--shadow-sm);
}

.header-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  gap: 1rem;
}

.header-nav {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.nav-link {
  font-size: 0.875rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--text-secondary);
  position: relative;
  padding: 0.5rem 0;
  transition: color var(--transition-fast);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0%;
  height: 1.5px;
  background-color: var(--champagne);
  transition: width var(--transition-base);
}

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

.nav-link:hover::after, .nav-link.active::after {
  width: 100%;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.header-cta-desktop {
  display: inline-flex;
}

.search-toggle-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  color: var(--text-primary);
  background: transparent;
  border: 1px solid var(--border-subtle);
  transition: all var(--transition-fast);
  flex-shrink: 0;
}

.search-toggle-btn:hover {
  background: rgba(20, 19, 18, 0.04);
  border-color: var(--border-medium);
  transform: translateY(-1px);
}

.mobile-menu-toggle {
  display: none;
  background: none;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 0.45rem;
  color: var(--text-primary);
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  flex-shrink: 0;
}

/* 2. Editorial Filter Tabs */
.filter-tabs-wrapper {
  width: 100%;
  overflow: hidden;
}

.filter-tabs {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  overflow-x: auto;
  padding-bottom: 0.5rem;
  padding-top: 0.25rem;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
  max-width: 100%;
}

.filter-tabs::-webkit-scrollbar {
  display: none;
}

.filter-tab {
  padding: 0.5rem 1.15rem;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  border-radius: var(--radius-pill);
  background: var(--bg-secondary);
  color: var(--text-secondary);
  border: 1px solid transparent;
  white-space: nowrap;
  flex-shrink: 0;
  transition: all var(--transition-fast);
}

.filter-tab:hover {
  color: var(--text-primary);
  background: var(--bg-tertiary);
}

.filter-tab.active {
  background: var(--text-primary);
  color: var(--text-light);
  border-color: var(--text-primary);
}

/* 3. Luxury Nail Art Card */
.nail-card {
  position: relative;
  background: var(--bg-card);
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--border-subtle);
  transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
  display: flex;
  flex-direction: column;
  width: 100%;
  box-sizing: border-box;
}

.nail-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(197, 160, 89, 0.35);
}

.nail-card-image-wrap {
  position: relative;
  aspect-ratio: 1 / 1.05;
  overflow: hidden;
  background-color: var(--bg-tertiary);
}

.nail-card-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.nail-card:hover .nail-card-image {
  transform: scale(1.06);
}

.nail-card-badge {
  position: absolute;
  top: 0.85rem;
  left: 0.85rem;
  z-index: 2;
  font-size: 0.675rem;
  padding: 0.3rem 0.65rem;
  border-radius: var(--radius-pill);
  background: rgba(20, 19, 18, 0.78);
  color: #FAF8F5;
  backdrop-filter: blur(10px);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-weight: 600;
}

.nail-card-action {
  position: absolute;
  top: 0.85rem;
  right: 0.85rem;
  z-index: 2;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(255, 255, 255, 0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-primary);
  opacity: 0.92;
  transition: all var(--transition-fast);
}

.nail-card-action:hover {
  transform: scale(1.1);
  background: #FFFFFF;
  color: var(--champagne);
}

.nail-card-action.saved {
  background: var(--champagne);
  color: #FFFFFF;
}

.nail-card-content {
  padding: 1.25rem 1.15rem;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.nail-card-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 600;
  margin-bottom: 0.4rem;
}

.nail-card-title {
  font-size: 1.2rem;
  font-weight: 500;
  line-height: 1.3;
  margin-bottom: 0.6rem;
  color: var(--text-primary);
}

.nail-card-footer {
  margin-top: auto;
  padding-top: 0.85rem;
  border-top: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.775rem;
  color: var(--text-secondary);
}

.nail-card-explore-link {
  font-weight: 600;
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--champagne);
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  transition: gap var(--transition-fast);
}

.nail-card-explore-link:hover {
  gap: 0.55rem;
}

/* 4. Modal Overlays */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(18, 17, 16, 0.78);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-base), visibility var(--transition-base);
  box-sizing: border-box;
}

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

.modal-window {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  width: 100%;
  max-width: 680px;
  max-height: 90vh;
  overflow-y: auto;
  position: relative;
  box-shadow: var(--shadow-xl);
  border: 1px solid var(--border-subtle);
  transform: translateY(20px) scale(0.97);
  transition: transform var(--transition-base);
  box-sizing: border-box;
}

.modal-overlay.active .modal-window {
  transform: translateY(0) scale(1);
}

.modal-close-btn {
  position: absolute;
  top: 1rem;
  right: 1rem;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--bg-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-primary);
  transition: all var(--transition-fast);
  z-index: 10;
}

.modal-close-btn:hover {
  background: var(--text-primary);
  color: var(--text-light);
  transform: rotate(90deg);
}

.quick-view-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  align-items: center;
}

@media (max-width: 768px) {
  .quick-view-grid {
    grid-template-columns: 1fr;
    gap: 1.25rem;
  }
}

/* 5. Toast Notification System */
.toast-container {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  z-index: 3000;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  pointer-events: none;
  max-width: calc(100vw - 3rem);
}

.toast {
  pointer-events: auto;
  background: var(--bg-dark-card);
  color: var(--text-light);
  border: 1px solid var(--border-champagne);
  padding: 0.85rem 1.25rem;
  border-radius: var(--radius-pill);
  box-shadow: var(--shadow-dark-card);
  font-size: 0.825rem;
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 0.65rem;
  transform: translateY(20px);
  opacity: 0;
  animation: toastIn 0.4s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

@keyframes toastIn {
  to {
    transform: translateY(0);
    opacity: 1;
  }
}