/* ==========================================================================
   ALUKAPAX - PREMIUM DESIGN SYSTEM & CUSTOM STYLES
   Colors: #0B0D0F (Dark), #1B1D20 (Surface), #A8A9AA (Metal), #C5A15B (Gold)
   ========================================================================== */

:root {
  --color-bg: #F7F7F5;
  --color-dark: #0B0D0F;
  --color-surface-dark: #1B1D20;
  --color-surface-light: #FFFFFF;
  --color-metal: #A8A9AA;
  --color-gold: #C5A15B;
  --color-gold-hover: #D4B26A;
  --color-gold-light: rgba(197, 161, 91, 0.12);
  --color-text-main: #1C1E21;
  --color-text-muted: #6B7280;
  --color-border: #E5E7EB;
  --color-border-dark: #2A2D32;
  
  --font-main: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-full: 9999px;
  
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.12);
  --shadow-gold: 0 8px 25px rgba(197, 161, 91, 0.25);
  
  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

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

a {
  color: inherit;
  text-decoration: none;
}

button, input, select, textarea {
  font-family: inherit;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}
::-webkit-scrollbar-track {
  background: var(--color-bg);
}
::-webkit-scrollbar-thumb {
  background: #CBD5E1;
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--color-gold);
}

/* Base Utility Classes */
.container {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.text-gold { color: var(--color-gold) !important; }
.bg-gold { background-color: var(--color-gold) !important; }
.bg-dark { background-color: var(--color-dark) !important; }
.bg-surface-dark { background-color: var(--color-surface-dark) !important; }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  padding: 0.85rem 1.75rem;
  font-weight: 700;
  font-size: 0.925rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  cursor: pointer;
  transition: var(--transition-fast);
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-gold) 0%, #B28F47 100%);
  color: #000000;
  box-shadow: var(--shadow-gold);
}
.btn-primary:hover {
  background: linear-gradient(135deg, var(--color-gold-hover) 0%, #C5A15B 100%);
  transform: translateY(-2px);
  box-shadow: 0 12px 30px rgba(197, 161, 91, 0.4);
}

.btn-dark {
  background-color: var(--color-dark);
  color: #FFFFFF;
  border: 1px solid var(--color-border-dark);
}
.btn-dark:hover {
  background-color: var(--color-surface-dark);
  border-color: var(--color-gold);
  color: var(--color-gold);
}

.btn-outline {
  background: transparent;
  color: var(--color-dark);
  border: 1.5px solid var(--color-dark);
}
.btn-outline:hover {
  background: var(--color-dark);
  color: #FFFFFF;
}

.btn-outline-gold {
  background: transparent;
  color: var(--color-gold);
  border: 1.5px solid var(--color-gold);
}
.btn-outline-gold:hover {
  background: var(--color-gold);
  color: #000000;
}

.btn-sm {
  padding: 0.5rem 1rem;
  font-size: 0.8rem;
}
.btn-lg {
  padding: 1.1rem 2.25rem;
  font-size: 1rem;
}

/* Header & Navigation System */
.header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background-color: rgba(11, 13, 15, 0.96);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--color-border-dark);
  transition: var(--transition-normal);
}

.nav-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 82px;
  gap: 1.5rem;
}

.logo-link {
  display: inline-flex;
  align-items: center;
  flex-shrink: 0;
  height: 54px;
  margin-right: 1.5rem;
}

.logo-link img, .brand-logo-img {
  height: 48px;
  width: auto;
  max-width: 240px;
  object-fit: contain;
  background: #FFFFFF;
  padding: 6px 14px;
  border-radius: 8px;
  border: 1px solid rgba(197, 161, 91, 0.45);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.25);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.logo-link:hover img, .brand-logo-img:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(197, 161, 91, 0.45);
}

.desktop-nav {
  display: flex;
  align-items: center;
  gap: 1.1rem;
  white-space: nowrap;
  flex-shrink: 1;
}

.nav-link {
  color: #D1D5DB;
  font-size: 0.825rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  padding: 0.4rem 0.2rem;
  transition: var(--transition-fast);
  white-space: nowrap;
}
.nav-link:hover, .nav-link.active {
  color: var(--color-gold);
}
.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background-color: var(--color-gold);
  border-radius: 2px;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 1.2rem;
}

.icon-btn {
  background: transparent;
  border: none;
  color: #FFFFFF;
  cursor: pointer;
  position: relative;
  padding: 0.5rem;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition-fast);
}
.icon-btn:hover {
  background-color: rgba(255, 255, 255, 0.1);
  color: var(--color-gold);
}

.cart-badge {
  position: absolute;
  top: 0;
  right: 0;
  background-color: var(--color-gold);
  color: #000000;
  font-size: 0.7rem;
  font-weight: 800;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Mobile Hamburger & Drawer */
.mobile-toggle {
  display: none;
}
.mobile-drawer {
  position: fixed;
  top: 0;
  left: -100%;
  width: 85%;
  max-width: 380px;
  height: 100vh;
  background-color: var(--color-dark);
  z-index: 2000;
  transition: left 0.35s ease;
  padding: 2rem 1.5rem;
  display: flex;
  flex-direction: column;
  box-shadow: 10px 0 30px rgba(0, 0, 0, 0.5);
  overflow-y: auto;
}
.mobile-drawer.open {
  left: 0;
}
.drawer-overlay {
  position: fixed;
  inset: 0;
  background-color: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(4px);
  z-index: 1999;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}
.drawer-overlay.open {
  opacity: 1;
  pointer-events: auto;
}

/* Hero Section */
.hero {
  position: relative;
  background-color: var(--color-dark);
  color: #FFFFFF;
  padding: 5rem 0 6rem 0;
  overflow: hidden;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3.5rem;
  align-items: center;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 1rem;
  background: rgba(197, 161, 91, 0.15);
  border: 1px solid rgba(197, 161, 91, 0.4);
  color: var(--color-gold);
  border-radius: var(--radius-full);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 1.5rem;
}
.hero-title {
  font-size: 3.25rem;
  font-weight: 900;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: 1.25rem;
}
.hero-title span {
  color: var(--color-gold);
  display: block;
}
.hero-desc {
  font-size: 1.15rem;
  color: var(--color-metal);
  margin-bottom: 2.25rem;
  max-width: 540px;
}
.hero-btns {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 2rem;
}
.hero-img-wrapper {
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.7);
  border: 1px solid rgba(255, 255, 255, 0.1);
}
.hero-img-wrapper img {
  width: 100%;
  height: 480px;
  object-fit: cover;
  display: block;
  transition: transform 0.7s ease;
}
.hero-img-wrapper:hover img {
  transform: scale(1.03);
}

/* Feature Cards (Neden ALUKAPAX) */
.section {
  padding: 5rem 0;
}
.section-header {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 3.5rem auto;
}
.section-subtitle {
  color: var(--color-gold);
  font-size: 0.85rem;
  font-weight: 800;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-bottom: 0.5rem;
}
.section-title {
  font-size: 2.35rem;
  font-weight: 800;
  color: var(--color-dark);
  line-height: 1.2;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 2rem;
}
.feature-card {
  background-color: var(--color-surface-light);
  padding: 2.25rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
  transition: var(--transition-normal);
}
.feature-card:hover {
  transform: translateY(-6px);
  border-color: var(--color-gold);
  box-shadow: var(--shadow-md);
}
.feature-icon {
  width: 56px;
  height: 56px;
  background-color: var(--color-gold-light);
  color: var(--color-gold);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
}

/* Before & After Interactive Comparison */
.before-after-box {
  position: relative;
  width: 100%;
  max-width: 960px;
  height: 520px;
  margin: 0 auto;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  user-select: none;
}
.ba-layer {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  background-size: cover;
  background-position: center;
}
.ba-after {
  z-index: 1;
}
.ba-before {
  z-index: 2;
  width: 50%;
  border-right: 3px solid var(--color-gold);
  overflow: hidden;
}
.ba-before-img {
  position: absolute;
  top: 0;
  left: 0;
  width: 960px;
  height: 520px;
  object-fit: cover;
}
.ba-slider-handle {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 50%;
  width: 4px;
  background-color: var(--color-gold);
  z-index: 3;
  cursor: ew-resize;
}
.ba-handle-btn {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 48px;
  height: 48px;
  background-color: var(--color-dark);
  color: var(--color-gold);
  border: 2px solid var(--color-gold);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.4);
}
.ba-badge {
  position: absolute;
  top: 20px;
  padding: 0.4rem 1rem;
  background: rgba(11, 13, 15, 0.85);
  color: #FFFFFF;
  font-weight: 700;
  font-size: 0.8rem;
  border-radius: var(--radius-sm);
  z-index: 4;
  backdrop-filter: blur(4px);
}
.ba-badge.before-label { left: 20px; border-left: 3px solid #EF4444; }
.ba-badge.after-label { right: 20px; border-right: 3px solid var(--color-gold); color: var(--color-gold); }

/* Product Cards & Grid */
.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 2rem;
}
.product-card {
  background: var(--color-surface-light);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  overflow: hidden;
  transition: var(--transition-normal);
  display: flex;
  flex-direction: column;
}
.product-card:hover {
  transform: translateY(-6px);
  border-color: var(--color-gold);
  box-shadow: var(--shadow-md);
}
.product-thumb {
  position: relative;
  height: 260px;
  background-color: #121417;
  overflow: hidden;
}
.product-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.product-card:hover .product-thumb img {
  transform: scale(1.06);
}
.product-code-badge {
  position: absolute;
  top: 12px;
  left: 12px;
  background-color: var(--color-dark);
  color: var(--color-gold);
  border: 1px solid rgba(197, 161, 91, 0.3);
  padding: 0.25rem 0.65rem;
  font-size: 0.75rem;
  font-weight: 800;
  border-radius: var(--radius-sm);
}
.product-body {
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}
.product-title {
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--color-dark);
  margin-bottom: 0.4rem;
}
.product-specs {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  margin-bottom: 1.25rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}
.spec-pill {
  background-color: #F3F4F6;
  padding: 0.2rem 0.55rem;
  border-radius: 4px;
  font-size: 0.75rem;
}
.product-footer {
  margin-top: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 1rem;
  border-top: 1px solid var(--color-border);
}
.product-price {
  display: flex;
  flex-direction: column;
}
.price-label {
  font-size: 0.7rem;
  color: var(--color-text-muted);
  text-transform: uppercase;
}
.price-value {
  font-size: 1.2rem;
  font-weight: 800;
  color: var(--color-dark);
}

/* Custom Dimension Price Engine Form */
.pricing-calculator-card {
  background-color: var(--color-surface-light);
  border-radius: var(--radius-md);
  border: 1.5px solid var(--color-border);
  padding: 2.25rem;
  box-shadow: var(--shadow-md);
}
.dimension-inputs-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1.25rem;
  margin-bottom: 1.5rem;
}
.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}
.form-label {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--color-dark);
}
.form-control {
  padding: 0.8rem 1rem;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  font-weight: 600;
  transition: var(--transition-fast);
  background-color: #FAFAFA;
}
.form-control:focus {
  outline: none;
  border-color: var(--color-gold);
  background-color: #FFFFFF;
  box-shadow: 0 0 0 3px rgba(197, 161, 91, 0.15);
}

/* Swatches selector */
.swatch-group {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-bottom: 1.25rem;
}
.swatch-btn {
  padding: 0.5rem 0.85rem;
  border-radius: var(--radius-sm);
  border: 1.5px solid var(--color-border);
  background-color: #FFFFFF;
  font-size: 0.8rem;
  font-weight: 700;
  cursor: pointer;
  transition: var(--transition-fast);
  display: flex;
  align-items: center;
  gap: 0.4rem;
}
.swatch-btn:hover, .swatch-btn.active {
  border-color: var(--color-gold);
  background-color: var(--color-gold-light);
  color: var(--color-dark);
}
.swatch-color-dot {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  border: 1px solid rgba(0, 0, 0, 0.1);
}

/* Instant Price Breakdown Box */
.price-breakdown-box {
  background-color: var(--color-dark);
  color: #FFFFFF;
  border-radius: var(--radius-md);
  padding: 1.75rem;
  margin-top: 1.5rem;
  border: 1px solid rgba(197, 161, 91, 0.3);
}
.price-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.6rem;
  font-size: 0.875rem;
  color: var(--color-metal);
}
.price-row.total {
  border-top: 1px solid var(--color-border-dark);
  padding-top: 1rem;
  margin-top: 1rem;
  font-size: 1.4rem;
  font-weight: 900;
  color: var(--color-gold);
}

/* Warning alert box */
.warning-box {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  padding: 0.9rem 1.2rem;
  background-color: #FFFBEB;
  border: 1px solid #FCD34D;
  border-radius: var(--radius-sm);
  color: #92400E;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 1.25rem;
}

/* Floating WhatsApp Button */
.whatsapp-float {
  position: fixed;
  bottom: 24px;
  right: 24px;
  width: 60px;
  height: 60px;
  background-color: #25D366;
  color: #FFFFFF;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 6px 20px rgba(37, 211, 102, 0.4);
  z-index: 999;
  transition: transform 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}
.whatsapp-float:hover {
  transform: scale(1.1);
  box-shadow: 0 10px 25px rgba(37, 211, 102, 0.6);
}

/* Table & Admin UI */
.admin-layout {
  display: grid;
  grid-template-columns: 260px 1fr;
  min-height: 100vh;
}
.admin-sidebar {
  background-color: var(--color-dark);
  color: #FFFFFF;
  padding: 2rem 1.25rem;
  border-right: 1px solid var(--color-border-dark);
}
.admin-nav-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 1rem;
  color: var(--color-metal);
  font-weight: 600;
  font-size: 0.875rem;
  border-radius: var(--radius-sm);
  transition: var(--transition-fast);
  margin-bottom: 0.25rem;
}
.admin-nav-item:hover, .admin-nav-item.active {
  background-color: var(--color-surface-dark);
  color: var(--color-gold);
}

.table-responsive {
  width: 100%;
  overflow-x: auto;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
}
.table {
  width: 100%;
  border-collapse: collapse;
  background-color: #FFFFFF;
  text-align: left;
  font-size: 0.875rem;
}
.table th {
  background-color: #F8FAFC;
  padding: 0.85rem 1rem;
  font-weight: 700;
  color: var(--color-dark);
  border-bottom: 1px solid var(--color-border);
}
.table td {
  padding: 0.9rem 1rem;
  border-bottom: 1px solid var(--color-border);
}

/* Footer */
.footer {
  background-color: var(--color-dark);
  color: var(--color-metal);
  padding: 4.5rem 0 2rem 0;
  border-top: 1px solid var(--color-border-dark);
  font-size: 0.875rem;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr repeat(3, 1fr);
  gap: 3rem;
  margin-bottom: 3.5rem;
}
.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}
.footer-title {
  color: #FFFFFF;
  font-size: 1rem;
  font-weight: 800;
  margin-bottom: 1.25rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}
.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
}
.footer-links a:hover {
  color: var(--color-gold);
}
.footer-bottom {
  border-top: 1px solid var(--color-border-dark);
  padding-top: 1.75rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
  font-size: 0.8rem;
}

/* Modal Overlay */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.75);
  backdrop-filter: blur(5px);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}
.modal-overlay.active {
  opacity: 1;
  pointer-events: auto;
}
.modal-card {
  background-color: #FFFFFF;
  width: 100%;
  max-width: 580px;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  padding: 2.25rem;
  max-height: 90vh;
  overflow-y: auto;
  position: relative;
}

/* Responsive Rules */
@media (max-width: 992px) {
  .hero-grid { grid-template-columns: 1fr; }
  .desktop-nav { display: none; }
  .mobile-toggle { display: flex; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .admin-layout { grid-template-columns: 1fr; }
  .admin-sidebar { display: none; }
}

@media (max-width: 640px) {
  .hero-title { font-size: 2.25rem; }
  .footer-grid { grid-template-columns: 1fr; }
  .before-after-box { height: 340px; }
  .ba-before-img { height: 340px; }
  .btn { width: 100%; }
}