/* ============================================
   CAĞKON - MODERN TEMA DEĞİŞKENLERİ
   ============================================ */

:root {
  /* Renk Paleti */
  --color-primary: #FF6B35;
  --color-primary-dark: #E85A2B;
  --color-secondary: #2D3436;
  --color-accent: #00D2D3;
  --color-bg: #FAFAFA;
  --color-white: #FFFFFF;
  --color-text: #2D3436;
  --color-text-light: #636E72;
  --color-success: #00B894;
  --color-border: #DFE6E9;
  
  /* Gradientler */
  --gradient-hero: linear-gradient(135deg, #FF6B35 0%, #FF8E53 100%);
  --gradient-dark: linear-gradient(135deg, #2D3436 0%, #636E72 100%);
  --gradient-accent: linear-gradient(135deg, #00D2D3 0%, #01C3C4 100%);
  
  /* Typography */
  --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-heading: 'Poppins', sans-serif;
  
  /* Font Sizes */
  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-lg: 1.125rem;
  --text-xl: 1.25rem;
  --text-2xl: 1.5rem;
  --text-3xl: 1.875rem;
  --text-4xl: 2.25rem;
  --text-5xl: 3rem;
  
  /* Spacing */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  
  /* Border Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-2xl: 1.5rem;
  --radius-full: 9999px;
  
  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
  --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.1);
  --shadow-xl: 0 20px 25px -5px rgba(0,0,0,0.1);
  --shadow-primary: 0 10px 30px rgba(255,107,53,0.3);
  
  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 300ms ease;
  --transition-slow: 500ms ease;
  
  /* Container */
  --container-max: 1280px;
  --container-padding: 1rem;
}

/* Reset & Base */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

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

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  text-decoration: none;
  color: inherit;
  transition: color var(--transition-fast);
}

button {
  cursor: pointer;
  border: none;
  background: none;
  font-family: inherit;
}

ul, ol {
  list-style: none;
}

/* ============================================
   LAYOUT
   ============================================ */

.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

/* Grid System */
.grid {
  display: grid;
  gap: var(--space-6);
}

.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

@media (max-width: 768px) {
  .grid-2, .grid-3, .grid-4 {
    grid-template-columns: 1fr;
  }
}

/* Flexbox Utilities */
.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.justify-center { justify-content: center; }
.gap-2 { gap: var(--space-2); }
.gap-4 { gap: var(--space-4); }
.gap-6 { gap: var(--space-6); }

/* ============================================
   HEADER
   ============================================ */

.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-border);
  z-index: 1000;
  transition: all var(--transition-base);
}

.header.scrolled {
  box-shadow: var(--shadow-md);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 80px;
}

.logo {
  font-family: var(--font-heading);
  font-size: var(--text-2xl);
  font-weight: 800;
  color: var(--color-primary);
  letter-spacing: -0.02em;
}

.logo span {
  color: var(--color-secondary);
}

.nav {
  display: flex;
  gap: var(--space-8);
}

.nav-link {
  font-weight: 500;
  color: var(--color-text);
  position: relative;
  padding: var(--space-2) 0;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-primary);
  transition: width var(--transition-base);
}

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

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

.header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.cart-btn {
  position: relative;
  padding: var(--space-3);
  border-radius: var(--radius-full);
  background: var(--color-bg);
  transition: all var(--transition-fast);
}

.cart-btn:hover {
  background: var(--color-primary);
  color: var(--color-white);
}

.cart-count {
  position: absolute;
  top: -5px;
  right: -5px;
  background: var(--color-primary);
  color: var(--color-white);
  font-size: var(--text-xs);
  font-weight: 700;
  width: 20px;
  height: 20px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
}

.mobile-menu-btn {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: var(--space-2);
}

.mobile-menu-btn span {
  width: 25px;
  height: 2px;
  background: var(--color-text);
  transition: all var(--transition-fast);
}

@media (max-width: 768px) {
  .nav {
    display: none;
    position: absolute;
    top: 80px;
    left: 0;
    right: 0;
    background: var(--color-white);
    flex-direction: column;
    padding: var(--space-6);
    border-bottom: 1px solid var(--color-border);
  }
  
  .nav.active {
    display: flex;
  }
  
  .mobile-menu-btn {
    display: flex;
  }
}

/* ============================================
   BUTTONS
   ============================================ */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  font-weight: 600;
  font-size: var(--text-base);
  border-radius: var(--radius-lg);
  transition: all var(--transition-fast);
  border: 2px solid transparent;
}

.btn-primary {
  background: var(--gradient-hero);
  color: var(--color-white);
  box-shadow: var(--shadow-primary);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 15px 35px rgba(255,107,53,0.4);
}

.btn-secondary {
  background: var(--color-secondary);
  color: var(--color-white);
}

.btn-outline {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.btn-outline:hover {
  background: var(--color-primary);
  color: var(--color-white);
}

.btn-lg {
  padding: var(--space-4) var(--space-8);
  font-size: var(--text-lg);
}

.btn-full {
  width: 100%;
}

/* ============================================
   PRODUCT CARDS
   ============================================ */

.product-card {
  background: var(--color-white);
  border-radius: var(--radius-2xl);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: all var(--transition-base);
  position: relative;
}

.product-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl);
}

.product-image {
  aspect-ratio: 4/3;
  background: var(--color-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.product-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

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

.product-badge {
  position: absolute;
  top: var(--space-4);
  left: var(--space-4);
  background: var(--color-primary);
  color: var(--color-white);
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-full);
  font-size: var(--text-xs);
  font-weight: 700;
  text-transform: uppercase;
}

.product-content {
  padding: var(--space-6);
}

.product-category {
  font-size: var(--text-sm);
  color: var(--color-primary);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.product-title {
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  font-weight: 700;
  margin-top: var(--space-2);
  color: var(--color-secondary);
}

.product-description {
  font-size: var(--text-sm);
  color: var(--color-text-light);
  margin-top: var(--space-2);
  line-height: 1.5;
}

.product-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: var(--space-4);
  padding-top: var(--space-4);
  border-top: 1px solid var(--color-border);
}

.product-price {
  font-size: var(--text-2xl);
  font-weight: 800;
  color: var(--color-primary);
}

.product-price .currency {
  font-size: var(--text-sm);
  font-weight: 600;
}

/* ============================================
   CART SIDEBAR
   ============================================ */

.cart-sidebar {
  position: fixed;
  top: 0;
  right: -400px;
  width: 400px;
  max-width: 100%;
  height: 100vh;
  background: var(--color-white);
  box-shadow: var(--shadow-xl);
  z-index: 1100;
  transition: right var(--transition-base);
  display: flex;
  flex-direction: column;
}

.cart-sidebar.active {
  right: 0;
}

.cart-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  z-index: 1050;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-base);
}

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

.cart-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-6);
  border-bottom: 1px solid var(--color-border);
}

.cart-title {
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  font-weight: 700;
}

.cart-close {
  padding: var(--space-2);
  border-radius: var(--radius-full);
  transition: background var(--transition-fast);
}

.cart-close:hover {
  background: var(--color-bg);
}

.cart-items {
  flex: 1;
  overflow-y: auto;
  padding: var(--space-4);
}

.cart-item {
  display: flex;
  gap: var(--space-4);
  padding: var(--space-4);
  background: var(--color-bg);
  border-radius: var(--radius-lg);
  margin-bottom: var(--space-3);
}

.cart-item-image {
  width: 80px;
  height: 80px;
  background: var(--color-white);
  border-radius: var(--radius-md);
  overflow: hidden;
  flex-shrink: 0;
}

.cart-item-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.cart-item-details {
  flex: 1;
}

.cart-item-name {
  font-weight: 600;
  color: var(--color-secondary);
}

.cart-item-options {
  font-size: var(--text-sm);
  color: var(--color-text-light);
  margin-top: var(--space-1);
}

.cart-item-price {
  font-weight: 700;
  color: var(--color-primary);
  margin-top: var(--space-2);
}

.cart-item-remove {
  color: var(--color-text-light);
  padding: var(--space-1);
  align-self: flex-start;
}

.cart-item-remove:hover {
  color: #e74c3c;
}

.cart-footer {
  padding: var(--space-6);
  border-top: 1px solid var(--color-border);
  background: var(--color-bg);
}

.cart-total {
  display: flex;
  justify-content: space-between;
  font-size: var(--text-lg);
  font-weight: 700;
  margin-bottom: var(--space-4);
}

.cart-total-price {
  color: var(--color-primary);
  font-size: var(--text-2xl);
}

/* ============================================
   FOOTER
   ============================================ */

.footer {
  background: var(--color-secondary);
  color: var(--color-white);
  padding: var(--space-16) 0 var(--space-8);
  margin-top: var(--space-20);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-8);
  margin-bottom: var(--space-12);
}

.footer-brand {
  max-width: 300px;
}

.footer-logo {
  font-family: var(--font-heading);
  font-size: var(--text-2xl);
  font-weight: 800;
  color: var(--color-primary);
  margin-bottom: var(--space-4);
}

.footer-desc {
  color: rgba(255,255,255,0.7);
  line-height: 1.8;
}

.footer-title {
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: 700;
  margin-bottom: var(--space-4);
  color: var(--color-white);
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.footer-link {
  color: rgba(255,255,255,0.7);
  transition: color var(--transition-fast);
}

.footer-link:hover {
  color: var(--color-primary);
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: var(--space-8);
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: rgba(255,255,255,0.5);
  font-size: var(--text-sm);
}

.footer-social {
  display: flex;
  gap: var(--space-4);
}

.social-link {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  background: rgba(255,255,255,0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
}

.social-link:hover {
  background: var(--color-primary);
  transform: translateY(-3px);
}

@media (max-width: 768px) {
  .footer-grid {
    grid-template-columns: 1fr;
    gap: var(--space-8);
  }
}

/* ============================================
   ANIMATIONS
   ============================================ */

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes slideInRight {
  from { opacity: 0; transform: translateX(50px); }
  to { opacity: 1; transform: translateX(0); }
}

@keyframes pulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.05); }
}

.animate-fadeIn {
  animation: fadeIn 0.6s ease forwards;
}

.animate-slideInRight {
  animation: slideInRight 0.6s ease forwards;
}

/* Scroll Reveal */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.8s ease;
}

.reveal.active {
  opacity: 1;
  transform: translateY(0);
}

/* ============================================
   UTILITIES
   ============================================ */

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  border: 0;
}

.text-center { text-align: center; }
.text-primary { color: var(--color-primary); }
.text-secondary { color: var(--color-secondary); }
.bg-white { background: var(--color-white); }
.bg-gray { background: var(--color-bg); }

.mt-4 { margin-top: var(--space-4); }
.mt-8 { margin-top: var(--space-8); }
.mb-4 { margin-bottom: var(--space-4); }
.mb-8 { margin-bottom: var(--space-8); }

.py-8 { padding-top: var(--space-8); padding-bottom: var(--space-8); }
.py-16 { padding-top: var(--space-16); padding-bottom: var(--space-16); }
.py-20 { padding-top: var(--space-20); padding-bottom: var(--space-20); }

.section {
  padding: var(--space-20) 0;
}

.section-title {
  font-family: var(--font-heading);
  font-size: var(--text-4xl);
  font-weight: 800;
  text-align: center;
  margin-bottom: var(--space-4);
  color: var(--color-secondary);
}

.section-subtitle {
  text-align: center;
  color: var(--color-text-light);
  font-size: var(--text-lg);
  max-width: 600px;
  margin: 0 auto var(--space-12);
}

/* Quantity Selector */
.quantity-selector {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.quantity-btn {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-bg);
  font-weight: 700;
  transition: all var(--transition-fast);
}

.quantity-btn:hover {
  background: var(--color-primary);
  color: var(--color-white);
}

.quantity-input {
  width: 60px;
  text-align: center;
  border: none;
  font-weight: 700;
  font-size: var(--text-lg);
}

/* Form Elements */
.form-group {
  margin-bottom: var(--space-4);
}

.form-label {
  display: block;
  font-weight: 600;
  margin-bottom: var(--space-2);
  color: var(--color-secondary);
}

.form-input,
.form-textarea {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-lg);
  font-size: var(--text-base);
  transition: border-color var(--transition-fast);
}

.form-input:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--color-primary);
}

.form-textarea {
  min-height: 120px;
  resize: vertical;
}

/* Selection Buttons (Galvaniz/Krom, Ebat) */
.selection-group {
  display: flex;
  gap: var(--space-3);
  flex-wrap: wrap;
}

.selection-btn {
  padding: var(--space-3) var(--space-6);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-lg);
  font-weight: 600;
  transition: all var(--transition-fast);
}

.selection-btn:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.selection-btn.active {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: var(--color-white);
}

/* Sticky Cart Footer */
.sticky-cart {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--color-white);
  border-top: 1px solid var(--color-border);
  padding: var(--space-4);
  box-shadow: 0 -4px 20px rgba(0,0,0,0.1);
  z-index: 900;
  transform: translateY(100%);
  transition: transform var(--transition-base);
}

.sticky-cart.active {
  transform: translateY(0);
}

.sticky-cart-content {
  max-width: var(--container-max);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

@media (max-width: 768px) {
  .cart-sidebar {
    width: 100%;
    right: -100%;
  }
  
  .section-title {
    font-size: var(--text-3xl);
  }
}

/* ============================================
   PG-HERO LAYOUT FIX
   ============================================ */

.pg-hero-inner {
  display: flex;
  align-items: stretch;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

.pg-hero-left {
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.pg-hero-right {
  flex-shrink: 0;
  position: relative;
  display: flex;
  align-items: center;
}