/* ==========================================================================
   ProjectorShop - Modern Design System & Custom Stylesheet
   Pure CSS3 + Bootstrap 5.3 Extension — Lightweight, Clean & Responsive
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. Design Variables & Global Resets
   -------------------------------------------------------------------------- */
:root {
  --font-family: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --primary: #4f46e5;
  --primary-hover: #4338ca;
  --primary-light: #eef2ff;
  --primary-glow: rgba(79, 70, 229, 0.18);
  
  --secondary: #64748b;
  --success: #10b981;
  --success-light: #ecfdf5;
  --warning: #f59e0b;
  --warning-light: #fffbeb;
  --danger: #ef4444;
  --info: #06b6d4;

  --dark-bg: #0f172a;
  --dark-surface: #1e293b;
  --body-bg: #f8fafc;
  --card-bg: #ffffff;
  
  --border-color: #e2e8f0;
  --border-subtle: #f1f5f9;
  --text-main: #1e293b;
  --text-muted: #64748b;

  --radius-sm: 0.5rem;
  --radius-md: 0.75rem;
  --radius-lg: 1rem;
  --radius-xl: 1.25rem;

  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(15, 23, 42, 0.08), 0 2px 4px -2px rgba(15, 23, 42, 0.05);
  --shadow-lg: 0 10px 15px -3px rgba(15, 23, 42, 0.08), 0 4px 6px -4px rgba(15, 23, 42, 0.04);
  --shadow-hover: 0 20px 25px -5px rgba(15, 23, 42, 0.1), 0 8px 10px -6px rgba(15, 23, 42, 0.05);
  --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

body {
  font-family: var(--font-family);
  background-color: var(--body-bg);
  color: var(--text-main);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* --------------------------------------------------------------------------
   2. Modern Navbar & Header
   -------------------------------------------------------------------------- */
.navbar-custom {
  background: var(--dark-bg);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  padding: 0.75rem 0;
}

.navbar-brand {
  font-weight: 800;
  letter-spacing: -0.5px;
  font-size: 1.35rem;
  display: flex;
  align-items: center;
  gap: 0.6rem;
  color: #ffffff !important;
}

.brand-icon-box {
  background: linear-gradient(135deg, #6366f1, #4f46e5);
  color: #fff;
  width: 36px;
  height: 36px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  box-shadow: 0 4px 12px rgba(79, 70, 229, 0.4);
}

.nav-link {
  font-weight: 500;
  font-size: 0.935rem;
  color: #94a3b8 !important;
  padding: 0.5rem 0.85rem !important;
  border-radius: var(--radius-sm);
  transition: var(--transition);
}

.nav-link:hover, .nav-link.active {
  color: #ffffff !important;
  background-color: rgba(255, 255, 255, 0.08);
}

.nav-link-admin {
  color: #fbbf24 !important;
  background-color: rgba(245, 158, 11, 0.1);
  border: 1px solid rgba(245, 158, 11, 0.25);
  padding: 0.35rem 0.75rem !important;
}

.nav-link-admin:hover {
  background-color: rgba(245, 158, 11, 0.2) !important;
  color: #fef3c7 !important;
}

/* User Menu & Buttons in Nav */
.user-avatar-pill {
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 50px;
  padding: 0.35rem 0.85rem;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: #fff !important;
  font-weight: 500;
  font-size: 0.9rem;
}

.user-avatar-pill:hover {
  background: rgba(255, 255, 255, 0.18);
}

.navbar-auth-btn {
  font-weight: 600;
  font-size: 0.875rem;
  padding: 0.45rem 1.1rem;
  border-radius: 50px;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  transition: var(--transition);
}

.btn-nav-login {
  color: #e2e8f0;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.15);
}

.btn-nav-login:hover {
  color: #ffffff;
  background: rgba(255, 255, 255, 0.15);
  border-color: rgba(255, 255, 255, 0.3);
}

.btn-nav-register {
  background: linear-gradient(135deg, #6366f1, #4f46e5);
  color: #ffffff;
  border: none;
  box-shadow: 0 2px 10px rgba(79, 70, 229, 0.35);
}

.btn-nav-register:hover {
  background: linear-gradient(135deg, #4f46e5, #4338ca);
  color: #ffffff;
  box-shadow: 0 4px 14px rgba(79, 70, 229, 0.5);
  transform: translateY(-1px);
}

/* --------------------------------------------------------------------------
   3. Cards & Product Grid System
   -------------------------------------------------------------------------- */
.card {
  background: var(--card-bg);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  overflow: hidden;
}

.card-hover-lift {
  transition: var(--transition);
}

.card-hover-lift:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
  border-color: #cbd5e1;
}

.product-img-wrapper {
  position: relative;
  height: 220px;
  background: #f1f5f9;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.product-card-img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  padding: 1rem;
  background-color: #ffffff;
  transition: transform 0.35s ease;
}

.card-hover-lift:hover .product-card-img {
  transform: scale(1.05);
}

.product-type-badge {
  position: absolute;
  top: 12px;
  right: 12px;
  font-size: 0.725rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  padding: 0.35rem 0.65rem;
  border-radius: 50px;
  backdrop-filter: blur(8px);
  box-shadow: 0 2px 8px rgba(0,0,0,0.12);
  z-index: 2;
}

.badge-sale {
  background: #dcfce7;
  color: #15803d;
  border: 1px solid #bbf7d0;
}

.badge-rent {
  background: #e0e7ff;
  color: #4338ca;
  border: 1px solid #c7d2fe;
}

.badge-hybrid {
  background: #fef3c7;
  color: #b45309;
  border: 1px solid #fde68a;
}

/* Price Tags */
.price-display {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.price-tag-sale {
  font-size: 1.15rem;
  font-weight: 800;
  color: #0f172a;
}

.price-tag-rent {
  font-size: 0.925rem;
  font-weight: 600;
  color: var(--primary);
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
}

/* --------------------------------------------------------------------------
   4. Buttons & Interactive Controls
   -------------------------------------------------------------------------- */
.btn {
  font-weight: 600;
  font-size: 0.925rem;
  border-radius: var(--radius-md);
  padding: 0.55rem 1.25rem;
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
}

.btn-primary {
  background-color: var(--primary);
  border-color: var(--primary);
  color: #ffffff;
  box-shadow: 0 2px 8px var(--primary-glow);
}

.btn-primary:hover, .btn-primary:focus {
  background-color: var(--primary-hover);
  border-color: var(--primary-hover);
  box-shadow: 0 4px 14px var(--primary-glow);
  transform: translateY(-1px);
}

.btn-success {
  background-color: var(--success);
  border-color: var(--success);
  color: #ffffff;
  box-shadow: 0 2px 8px rgba(16, 185, 129, 0.2);
}

.btn-success:hover {
  background-color: #059669;
  border-color: #059669;
  transform: translateY(-1px);
}

.btn-outline-primary {
  color: var(--primary);
  border-color: #c7d2fe;
  background: transparent;
}

.btn-outline-primary:hover {
  background-color: var(--primary);
  border-color: var(--primary);
  color: #ffffff;
  box-shadow: 0 4px 12px var(--primary-glow);
}

/* --------------------------------------------------------------------------
   5. Authentication Cards (Login & Register)
   -------------------------------------------------------------------------- */
.auth-wrapper {
  max-width: 460px;
  margin: 2.5rem auto;
}

.auth-card {
  border-radius: var(--radius-xl);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-lg);
  background: #ffffff;
}

.auth-header-icon {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  background: var(--primary-light);
  color: var(--primary);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 1rem;
}

.form-control, .form-select {
  border-radius: var(--radius-md);
  border: 1px solid #cbd5e1;
  padding: 0.65rem 0.95rem;
  font-size: 0.95rem;
  color: var(--text-main);
  background-color: #ffffff;
  transition: var(--transition);
}

.form-control:focus, .form-select:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-glow);
}

.input-icon-group {
  position: relative;
}

.input-icon-group .input-icon {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  color: #94a3b8;
  font-size: 1.1rem;
  pointer-events: none;
}

.input-icon-group .form-control {
  padding-left: 2.6rem;
}

/* --------------------------------------------------------------------------
   6. Hero & Filter Section (Catalog)
   -------------------------------------------------------------------------- */
.catalog-hero {
  background: linear-gradient(135deg, #1e1b4b 0%, #0f172a 100%);
  color: #ffffff;
  border-radius: var(--radius-xl);
  padding: 2.5rem 2rem;
  margin-bottom: 2rem;
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-md);
}

.catalog-hero::after {
  content: '';
  position: absolute;
  right: -80px;
  top: -80px;
  width: 260px;
  height: 260px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(99, 102, 241, 0.25) 0%, rgba(99, 102, 241, 0) 70%);
  pointer-events: none;
}

.filter-bar-card {
  background: #ffffff;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
  padding: 1.25rem 1.5rem;
  margin-bottom: 2rem;
}

.type-pill-btn {
  border-radius: 50px;
  padding: 0.45rem 1rem;
  font-size: 0.875rem;
  font-weight: 600;
  border: 1px solid #e2e8f0;
  background: #f8fafc;
  color: var(--text-muted);
  cursor: pointer;
  transition: var(--transition);
}

.type-pill-btn:hover {
  background: #f1f5f9;
  color: var(--text-main);
}

.type-pill-btn.active {
  background: var(--primary);
  border-color: var(--primary);
  color: #ffffff;
  box-shadow: 0 2px 8px var(--primary-glow);
}

/* --------------------------------------------------------------------------
   7. Floating Compare Dock
   -------------------------------------------------------------------------- */
.floating-compare-dock {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--dark-bg);
  color: #ffffff;
  padding: 0.75rem 1.5rem;
  border-radius: 50px;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.3);
  display: flex;
  align-items: center;
  gap: 1.25rem;
  z-index: 1050;
  border: 1px solid rgba(255, 255, 255, 0.15);
  animation: slideUp 0.3s ease forwards;
}

@keyframes slideUp {
  from { opacity: 0; transform: translate(-50%, 20px); }
  to { opacity: 1; transform: translate(-50%, 0); }
}

/* --------------------------------------------------------------------------
   8. Admin Dashboard KPI Widgets
   -------------------------------------------------------------------------- */
.kpi-card {
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-color);
  padding: 1.4rem;
  background: #ffffff;
  box-shadow: var(--shadow-sm);
  position: relative;
  overflow: hidden;
  transition: var(--transition);
}

.kpi-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.kpi-icon-bubble {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
}

.kpi-value {
  font-size: 2rem;
  font-weight: 800;
  letter-spacing: -0.5px;
  color: #0f172a;
}

/* --------------------------------------------------------------------------
   9. Tables & General Utilities
   -------------------------------------------------------------------------- */
.table-custom {
  border-collapse: separate;
  border-spacing: 0;
  width: 100%;
}

.table-custom thead th {
  background-color: #f8fafc;
  color: #64748b;
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  padding: 0.85rem 1rem;
  border-bottom: 1px solid #e2e8f0;
}

.table-custom tbody td {
  padding: 1rem;
  vertical-align: middle;
  border-bottom: 1px solid #f1f5f9;
  font-size: 0.925rem;
}

.table-custom tbody tr:hover td {
  background-color: #f8fafc;
}

.section-title {
  font-weight: 800;
  letter-spacing: -0.5px;
  color: #0f172a;
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.empty-state {
  text-align: center;
  padding: 4rem 1.5rem;
  color: #94a3b8;
}

.empty-state i {
  font-size: 3.75rem;
  color: #cbd5e1;
  margin-bottom: 1rem;
  display: inline-block;
}

/* --------------------------------------------------------------------------
   10. Footer Styling
   -------------------------------------------------------------------------- */
.footer-custom {
  background: var(--dark-bg);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  color: #94a3b8;
  font-size: 0.875rem;
  padding: 1.5rem 0;
}