/* Modern CSS Design System for Shoe Size-Wise Price Radar */
@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700;800&family=Inter:wght@300;400;500;600;700&display=swap');

:root {
  --bg-primary: #0a0c16;
  --bg-surface: #121629;
  --bg-surface-elevated: #1a2038;
  --bg-glass: rgba(26, 32, 56, 0.85);
  --bg-glass-card: rgba(18, 22, 41, 0.85);
  --border-color: rgba(255, 255, 255, 0.1);
  --border-active: rgba(99, 102, 241, 0.6);
  
  --primary: #6366f1;
  --primary-glow: rgba(99, 102, 241, 0.35);
  --secondary: #ec4899;
  --accent-green: #10b981;
  --accent-green-bg: rgba(16, 185, 129, 0.15);
  --accent-amber: #f59e0b;
  --accent-red: #ef4444;
  --accent-red-bg: rgba(239, 68, 68, 0.15);
  
  --store-flipkart: #2874f0;
  --store-myntra: #ff3f6c;
  
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --text-dim: #64748b;
  
  --font-heading: 'Outfit', sans-serif;
  --font-body: 'Inter', sans-serif;
  
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-full: 9999px;
  
  --transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --shadow-glow: 0 10px 30px -10px rgba(99, 102, 241, 0.3);
  --shadow-card: 0 12px 32px rgba(0, 0, 0, 0.4);
}

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

body {
  background-color: var(--bg-primary);
  color: var(--text-main);
  font-family: var(--font-body);
  line-height: 1.5;
  overflow-x: hidden;
  background-image: 
    radial-gradient(circle at 10% 20%, rgba(99, 102, 241, 0.08) 0%, transparent 40%),
    radial-gradient(circle at 90% 80%, rgba(236, 72, 153, 0.06) 0%, transparent 40%);
  background-attachment: fixed;
  min-height: 100vh;
  user-select: text;
  -webkit-user-select: text;
}

/* Navbar */
.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--bg-glass);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-color);
  padding: 1rem 2rem;
}

.navbar-container {
  max-width: 1400px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.logo-group {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  cursor: pointer;
}

.logo-icon {
  width: 42px;
  height: 42px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1.4rem;
  box-shadow: var(--primary-glow);
}

.logo-text h1 {
  font-family: var(--font-heading);
  font-size: 1.4rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  background: linear-gradient(90deg, #ffffff, #cbd5e1);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.logo-text span {
  font-size: 0.75rem;
  color: var(--accent-amber);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  display: block;
  margin-top: -2px;
}

.nav-stats {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.stat-chip {
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-color);
  padding: 0.5rem 1rem;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.85rem;
}

.stat-chip strong {
  color: var(--primary);
  font-family: var(--font-heading);
  font-size: 1rem;
}

.stat-chip.highlight {
  border-color: rgba(245, 158, 11, 0.4);
  background: rgba(245, 158, 11, 0.08);
}
.stat-chip.highlight strong {
  color: var(--accent-amber);
}

/* Header & Banner */
.hero-section {
  max-width: 1400px;
  margin: 2rem auto 1.5rem;
  padding: 0 1.5rem;
}

.hero-banner {
  background: linear-gradient(135deg, rgba(30, 38, 70, 0.8), rgba(18, 22, 41, 0.9));
  border: 1px solid rgba(99, 102, 241, 0.25);
  border-radius: var(--radius-lg);
  padding: 2.5rem 2rem;
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-card);
}

.hero-content {
  max-width: 850px;
  position: relative;
  z-index: 1;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(16, 185, 129, 0.12);
  border: 1px solid rgba(16, 185, 129, 0.3);
  color: var(--accent-green);
  padding: 0.35rem 0.85rem;
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 1rem;
}

.hero-title {
  font-family: var(--font-heading);
  font-size: 2.2rem;
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 1rem;
  background: linear-gradient(135deg, #ffffff 0%, #94a3b8 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-desc {
  font-size: 1rem;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 1.5rem;
}

.hero-highlights {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
  margin-top: 1.5rem;
}

.highlight-card {
  background: rgba(10, 12, 22, 0.6);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1rem;
  display: flex;
  align-items: center;
  gap: 1rem;
}

.highlight-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  background: rgba(99, 102, 241, 0.15);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  flex-shrink: 0;
}

.highlight-text span {
  display: block;
  font-size: 0.75rem;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.highlight-text strong {
  font-size: 1.1rem;
  color: var(--text-main);
  font-family: var(--font-heading);
}

/* Store Switcher Bar */
.store-switcher-bar {
  display: flex;
  gap: 0.75rem;
  margin-bottom: 1.25rem;
  flex-wrap: wrap;
}

.store-tab-btn {
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-color);
  color: var(--text-muted);
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius-md);
  font-family: var(--font-heading);
  font-size: 0.95rem;
  font-weight: 700;
  cursor: pointer;
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  user-select: none;
  position: relative;
  z-index: 10;
}

.store-tab-btn:hover {
  border-color: var(--primary);
  color: var(--text-main);
  transform: translateY(-1px);
}

.store-tab-btn.active-all {
  background: linear-gradient(135deg, var(--primary), #4f46e5);
  color: white;
  border-color: var(--primary);
  box-shadow: var(--primary-glow);
}

.store-tab-btn.active-flipkart {
  background: linear-gradient(135deg, #2874f0, #1e40af);
  color: white;
  border-color: #3b82f6;
  box-shadow: 0 4px 15px rgba(40, 116, 240, 0.4);
}

.store-tab-btn.active-myntra {
  background: linear-gradient(135deg, #ff3f6c, #be185d);
  color: white;
  border-color: #f43f5e;
  box-shadow: 0 4px 15px rgba(255, 63, 108, 0.4);
}

/* Control Panel (Filters & Search) */
.controls-section {
  max-width: 1400px;
  margin: 0 auto 2rem;
  padding: 0 1.5rem;
  position: relative;
  z-index: 10;
}

.controls-card {
  background: var(--bg-glass-card);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  box-shadow: var(--shadow-card);
}

.search-row {
  display: flex;
  gap: 1rem;
  margin-bottom: 1.25rem;
  flex-wrap: wrap;
}

.search-box {
  flex: 1;
  min-width: 280px;
  position: relative;
}

.search-box input {
  width: 100%;
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 0.85rem 1rem 0.85rem 2.75rem;
  color: var(--text-main);
  font-family: var(--font-body);
  font-size: 0.95rem;
  transition: var(--transition);
}

.search-box input:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.2);
}

.search-icon {
  position: absolute;
  left: 1rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-dim);
  font-size: 1.1rem;
  pointer-events: none;
}

.view-toggle {
  display: flex;
  background: var(--bg-surface);
  padding: 4px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
}

.toggle-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  padding: 0.65rem 1.25rem;
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  align-items: center;
  gap: 0.5rem;
  user-select: none;
}

.toggle-btn.active {
  background: var(--primary);
  color: white;
  box-shadow: var(--primary-glow);
}

.toggle-btn .badge-count {
  background: rgba(255, 255, 255, 0.2);
  padding: 0.15rem 0.5rem;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
}

/* Filters Grid */
.filters-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1.25rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border-color);
}

.filter-group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.filter-group label {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  display: flex;
  justify-content: space-between;
}

.filter-group select {
  width: 100%;
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  padding: 0.65rem 0.85rem;
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-size: 0.88rem;
  cursor: pointer;
  transition: var(--transition);
  position: relative;
  z-index: 10;
}

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

/* Size Quick Chips Filter */
.size-chips-bar {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin-top: 0.25rem;
}

.size-chip-filter {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  color: var(--text-muted);
  padding: 0.35rem 0.75rem;
  border-radius: var(--radius-sm);
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  user-select: none;
}

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

.size-chip-filter.active {
  background: rgba(99, 102, 241, 0.2);
  border-color: var(--primary);
  color: #a5b4fc;
}

/* Shoe Products Grid */
.products-section {
  max-width: 1400px;
  margin: 0 auto 3rem;
  padding: 0 1.5rem;
  position: relative;
  z-index: 5;
}

.products-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.5rem;
}

.products-header h2 {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.count-tag {
  background: rgba(99, 102, 241, 0.15);
  color: var(--primary);
  padding: 0.2rem 0.65rem;
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 600;
}

.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1.5rem;
}

/* Shoe Card */
.shoe-card {
  background: var(--bg-glass-card);
  backdrop-filter: blur(8px);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  position: relative;
}

.shoe-card:hover {
  transform: translateY(-4px);
  border-color: var(--border-active);
  box-shadow: var(--shadow-card), 0 0 20px rgba(99, 102, 241, 0.15);
}

/* Card Image Area */
.card-img-container {
  position: relative;
  width: 100%;
  height: 250px;
  background: #181d33;
  overflow: hidden;
}

.card-img-container img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.shoe-card:hover .card-img-container img {
  transform: scale(1.05);
}

.diff-badge {
  position: absolute;
  top: 12px;
  left: 12px;
  background: linear-gradient(135deg, #f59e0b, #d97706);
  color: #000;
  padding: 0.35rem 0.75rem;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 800;
  display: flex;
  align-items: center;
  gap: 0.35rem;
  box-shadow: 0 4px 12px rgba(245, 158, 11, 0.4);
  z-index: 2;
}

.brand-badge {
  position: absolute;
  top: 12px;
  right: 12px;
  background: rgba(10, 12, 22, 0.85);
  backdrop-filter: blur(6px);
  color: var(--text-main);
  padding: 0.3rem 0.65rem;
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  border: 1px solid var(--border-color);
  z-index: 2;
}

/* Card Content */
.card-body {
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.card-title {
  font-family: var(--font-heading);
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 0.5rem;
  line-height: 1.35;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  height: 2.7rem;
}

.card-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1rem;
  font-size: 0.85rem;
}

.rating-tag {
  display: flex;
  align-items: center;
  gap: 0.3rem;
  color: #fbbf24;
  font-weight: 700;
}

.rating-count {
  color: var(--text-dim);
  font-weight: 400;
  font-size: 0.75rem;
}

/* Size-Wise Price Matrix in Card */
.size-matrix-header {
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.5rem;
  display: flex;
  justify-content: space-between;
}

.size-matrix-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(68px, 1fr));
  gap: 0.4rem;
  margin-bottom: 1.25rem;
}

.size-cell {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 0.4rem 0.25rem;
  text-align: center;
  transition: var(--transition);
  cursor: pointer;
  position: relative;
}

.size-cell .size-label {
  font-size: 0.72rem;
  color: var(--text-dim);
  font-weight: 600;
  display: block;
}

.size-cell .size-price {
  font-size: 0.82rem;
  font-family: var(--font-heading);
  font-weight: 700;
  color: var(--text-main);
}

.size-cell.cheapest {
  background: rgba(16, 185, 129, 0.15);
  border-color: rgba(16, 185, 129, 0.5);
}

.size-cell.cheapest .size-label {
  color: var(--accent-green);
}

.size-cell.cheapest .size-price {
  color: #34d399;
}

.size-cell.expensive {
  background: rgba(239, 68, 68, 0.1);
  border-color: rgba(239, 68, 68, 0.3);
}

.size-cell.expensive .size-label {
  color: #f87171;
}

/* Card Summary Price Banner */
.card-price-summary {
  background: rgba(10, 12, 22, 0.6);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 0.75rem;
  margin-top: auto;
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.price-range-label {
  font-size: 0.75rem;
  color: var(--text-dim);
}

.price-range-val {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--text-main);
}

.price-range-val span.min {
  color: var(--accent-green);
}

.price-range-val span.max {
  color: var(--accent-red);
}

/* Card Actions */
.card-actions {
  display: flex;
  gap: 0.5rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.65rem 1rem;
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-size: 0.88rem;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition: var(--transition);
  border: none;
  user-select: none;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary), #4f46e5);
  color: white;
  box-shadow: var(--primary-glow);
  flex: 1;
}

.btn-primary:hover {
  filter: brightness(1.1);
  box-shadow: 0 6px 20px rgba(99, 102, 241, 0.4);
}

.btn-outline {
  background: transparent;
  border: 1px solid var(--border-color);
  color: var(--text-muted);
}

.btn-outline:hover {
  background: var(--bg-surface-elevated);
  color: var(--text-main);
  border-color: var(--text-dim);
}

/* MODAL OVERLAY (POINTER-EVENTS FIX) */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(5, 7, 13, 0.85);
  backdrop-filter: blur(12px);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  opacity: 0;
  visibility: hidden;
  pointer-events: none; /* CRITICAL FIX: Allow underlying clicks when closed! */
  transition: var(--transition);
}

.modal-overlay.active {
  opacity: 1;
  visibility: visible;
  pointer-events: auto; /* CRITICAL FIX: Enable clicks only when open! */
}

.modal-container {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  max-width: 850px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: var(--shadow-card);
  position: relative;
  transform: scale(0.95);
  transition: var(--transition);
}

.modal-overlay.active .modal-container {
  transform: scale(1);
}

.modal-close {
  position: absolute;
  top: 1rem;
  right: 1rem;
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-color);
  color: var(--text-muted);
  width: 36px;
  height: 36px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 1.2rem;
  transition: var(--transition);
  z-index: 10;
}

.modal-close:hover {
  color: white;
  background: var(--accent-red);
}

.modal-body {
  padding: 2rem;
}

.modal-header-flex {
  display: flex;
  gap: 1.5rem;
  margin-bottom: 2rem;
  flex-wrap: wrap;
}

.modal-img-preview {
  width: 180px;
  height: 180px;
  border-radius: var(--radius-md);
  object-fit: cover;
  background: #181d33;
  border: 1px solid var(--border-color);
}

.modal-info {
  flex: 1;
}

.modal-info h3 {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  margin-bottom: 0.5rem;
}

.modal-savings-alert {
  background: rgba(245, 158, 11, 0.12);
  border: 1px solid rgba(245, 158, 11, 0.4);
  color: #fcd34d;
  padding: 0.75rem 1rem;
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 0.95rem;
  margin-top: 1rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

/* Modal Size Table */
.size-table-container {
  margin-top: 1.5rem;
  overflow-x: auto;
}

.size-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.9rem;
}

.size-table th {
  background: var(--bg-surface-elevated);
  color: var(--text-muted);
  padding: 0.75rem 1rem;
  font-weight: 600;
  border-bottom: 1px solid var(--border-color);
}

.size-table td {
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--border-color);
}

.size-table tr.best-deal {
  background: rgba(16, 185, 129, 0.08);
}

.size-table tr.best-deal td {
  font-weight: 700;
}

/* Empty State */
.empty-state {
  text-align: center;
  padding: 4rem 2rem;
  background: var(--bg-glass-card);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-color);
  grid-column: 1 / -1;
}

.empty-icon {
  font-size: 3rem;
  color: var(--text-dim);
  margin-bottom: 1rem;
}

/* Footer */
footer {
  border-top: 1px solid var(--border-color);
  background: var(--bg-surface);
  padding: 2rem 1.5rem;
  text-align: center;
  color: var(--text-muted);
  font-size: 0.88rem;
  margin-top: 4rem;
}

/* Responsive */
@media (max-width: 768px) {
  .navbar-container {
    flex-direction: column;
    align-items: flex-start;
  }
  .hero-title {
    font-size: 1.7rem;
  }
  .search-row {
    flex-direction: column;
  }
  .view-toggle {
    width: 100%;
  }
  .toggle-btn {
    flex: 1;
    justify-content: center;
  }
  .store-switcher-bar {
    width: 100%;
  }
  .store-tab-btn {
    flex: 1;
    justify-content: center;
  }
}