/* ==========================================================================
   Jasfur Çanta - Sırt Çantası Katalog & Tanıtım Sitesi (Responsive & Clean)
   ========================================================================== */

:root {
  --font-primary: 'Outfit', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-body: 'Inter', sans-serif;

  --primary: #2563eb;
  --primary-hover: #1d4ed8;
  --primary-light: #eff6ff;
  --secondary: #0f172a;

  --bg-main: #f8fafc;
  --bg-surface: #ffffff;
  --bg-subtle: #f1f5f9;

  --text-main: #0f172a;
  --text-muted: #64748b;
  --text-white: #ffffff;

  --border: #e2e8f0;

  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-full: 9999px;

  --shadow-sm: 0 2px 4px rgba(15, 23, 42, 0.04);
  --shadow-md: 0 10px 25px -5px rgba(15, 23, 42, 0.08);
  --shadow-lg: 0 20px 35px -10px rgba(15, 23, 42, 0.12);

  --transition: all 0.25s ease-in-out;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

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

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-primary);
  font-weight: 700;
  color: var(--text-main);
  line-height: 1.25;
}

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

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

.container {
  width: 100%;
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* Header Navbar */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.98);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  box-shadow: 0 2px 10px rgba(15, 23, 42, 0.03);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
  position: relative;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-family: var(--font-primary);
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--secondary);
  text-decoration: none;
  flex-shrink: 0;
}

.brand-logo-img {
  height: 44px;
  width: auto;
  max-width: 140px;
  object-fit: contain;
  border-radius: var(--radius-sm);
}

.footer-logo-img {
  height: 56px;
  width: auto;
  max-width: 180px;
  object-fit: contain;
  border-radius: var(--radius-md);
  background: #ffffff;
  padding: 6px 14px;
  margin-bottom: 1.25rem;
  display: inline-block;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.logo-text {
  font-weight: 800;
  letter-spacing: -0.5px;
}

/* Nav Linkleri Ortala */
.nav-wrapper {
  display: flex;
  align-items: center;
  justify-content: center;
}

@media (min-width: 869px) {
  .nav-wrapper {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
  }
}

.nav-links {
  display: flex;
  list-style: none;
  gap: 1.5rem;
  align-items: center;
}

.nav-links a {
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--text-muted);
  transition: var(--transition);
  padding: 0.5rem 0.85rem;
  border-radius: var(--radius-sm);
  white-space: nowrap;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--primary);
  background: var(--primary-light);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-shrink: 0;
}

.header-whatsapp-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  background: #25d366;
  color: white;
  font-weight: 700;
  font-size: 0.88rem;
  padding: 0.45rem 1rem;
  border-radius: var(--radius-full);
  transition: var(--transition);
  box-shadow: 0 2px 8px rgba(37, 211, 102, 0.25);
}

.header-whatsapp-btn:hover {
  background: #1eb957;
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(37, 211, 102, 0.35);
}

.mobile-menu-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 1.5rem;
  color: var(--secondary);
  cursor: pointer;
  padding: 0.5rem;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.7rem 1.4rem;
  font-family: var(--font-primary);
  font-weight: 600;
  font-size: 0.9rem;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: var(--transition);
  border: none;
  outline: none;
}

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

.btn-primary:hover {
  background: var(--primary-hover);
  transform: translateY(-2px);
}

.btn-trendyol {
  background: #f27a1a;
  color: white;
}
.btn-trendyol:hover {
  background: #d6640c;
  transform: translateY(-2px);
}

.btn-hepsiburada {
  background: #ff6000;
  color: white;
}
.btn-hepsiburada:hover {
  background: #e05400;
  transform: translateY(-2px);
}

.btn-instagram {
  background: linear-gradient(45deg, #f09433 0%, #e6683c 25%, #dc2743 50%, #cc2366 75%, #bc1888 100%);
  color: white;
}
.btn-instagram:hover {
  opacity: 0.92;
  transform: translateY(-2px);
}

/* Hero Section */
.hero {
  padding: 4rem 0 3rem 0;
  background: linear-gradient(180deg, #eff6ff 0%, #f8fafc 100%);
  text-align: center;
}

.hero-content {
  max-width: 760px;
  margin: 0 auto;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.35rem 1rem;
  background: rgba(37, 99, 235, 0.1);
  color: var(--primary);
  font-weight: 700;
  font-size: 0.85rem;
  border-radius: var(--radius-full);
  margin-bottom: 1.25rem;
}

.hero-title {
  font-size: 2.8rem;
  margin-bottom: 1rem;
  color: var(--secondary);
  letter-spacing: -0.02em;
}

.hero-title span {
  color: var(--primary);
}

.hero-desc {
  font-size: 1.1rem;
  color: var(--text-muted);
  margin-bottom: 2rem;
}

/* Catalog Section */
.catalog-section {
  padding: 3.5rem 0;
}

.section-header {
  text-align: center;
  max-width: 650px;
  margin: 0 auto 2rem auto;
}

.section-subtitle {
  color: var(--primary);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  font-size: 0.8rem;
  margin-bottom: 0.4rem;
  display: block;
}

.section-title {
  font-size: 2.2rem;
  margin-bottom: 0.75rem;
}

/* Filter Pills */
.filter-bar {
  display: flex;
  justify-content: center;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin-bottom: 2.5rem;
}

.cat-pill {
  padding: 0.55rem 1.25rem;
  border-radius: var(--radius-full);
  background: white;
  color: var(--text-muted);
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  border: 1px solid var(--border);
}

.cat-pill:hover {
  color: var(--primary);
  border-color: var(--primary);
}

.cat-pill.active {
  background: var(--primary);
  color: white;
  border-color: var(--primary);
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.25);
}

/* Product Cards Grid */
.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 1.75rem;
}

.product-card {
  background: white;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border);
  transition: var(--transition);
  cursor: pointer;
  display: flex;
  flex-direction: column;
}

.product-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
  border-color: #cbd5e1;
}

.product-img-wrap {
  width: 100%;
  height: 300px;
  background: #ffffff;
  padding: 1rem;
  overflow: hidden;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  border-bottom: 1px solid var(--bg-subtle);
}

.product-img-wrap img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  transition: transform 0.4s ease;
}

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

.product-tag {
  position: absolute;
  top: 0.85rem;
  left: 0.85rem;
  background: rgba(15, 23, 42, 0.85);
  color: white;
  font-size: 0.72rem;
  font-weight: 700;
  padding: 0.25rem 0.65rem;
  border-radius: var(--radius-full);
  backdrop-filter: blur(4px);
  z-index: 2;
}

.product-info {
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.product-category {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--primary);
  text-transform: uppercase;
  margin-bottom: 0.25rem;
}

.product-title {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 0.5rem;
}

.product-specs {
  display: flex;
  gap: 0.75rem;
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: auto;
  padding-top: 0.75rem;
  border-top: 1px solid var(--bg-subtle);
}

/* Modal & Carousel Slider */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.6);
  backdrop-filter: blur(4px);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.25rem;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
}

.modal-backdrop.open {
  opacity: 1;
  visibility: visible;
}

.modal-box {
  background: white;
  width: 100%;
  max-width: 820px;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  position: relative;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
}

.modal-close {
  position: absolute;
  top: 1rem;
  right: 1rem;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--bg-subtle);
  border: none;
  font-size: 1.1rem;
  cursor: pointer;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}

.modal-close:hover {
  background: #e2e8f0;
}

.modal-body {
  padding: 2.25rem;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  align-items: center;
  overflow-y: auto;
}

/* Carousel Styles */
.slider-container {
  position: relative;
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.slider-img-wrap {
  width: 100%;
  height: 340px;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  background: #ffffff;
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  padding: 0.5rem;
  overflow: hidden;
}

.modal-img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  transition: opacity 0.3s ease;
}

.slider-nav-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.9);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
  border: 1px solid var(--border);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  color: var(--secondary);
  transition: var(--transition);
  z-index: 5;
}

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

.slider-nav-prev { left: 8px; }
.slider-nav-next { right: 8px; }

/* Pagination Dots */
.slider-dots {
  display: flex;
  gap: 8px;
  justify-content: center;
  align-items: center;
  margin-top: 12px;
}

.slider-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #cbd5e1;
  cursor: pointer;
  transition: all 0.25s ease;
}

.slider-dot.active {
  background: var(--primary);
  width: 24px;
  border-radius: 12px;
}

.slider-auto-status {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 6px;
  display: flex;
  align-items: center;
  gap: 4px;
}

/* Contact & Marketplace Section */
.contact-section {
  background: var(--secondary);
  color: white;
  padding: 4rem 0 2rem 0;
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  margin-bottom: 3rem;
}

.contact-brand h2 {
  color: white;
  font-size: 1.8rem;
  margin-bottom: 0.75rem;
}

.contact-brand p {
  color: #94a3b8;
  font-size: 0.95rem;
  margin-bottom: 1.5rem;
}

.contact-details {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  font-size: 0.95rem;
}

.contact-details li {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  color: #cbd5e1;
}

.contact-details i {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #60a5fa;
  flex-shrink: 0;
}

.marketplaces-card {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-lg);
  padding: 2rem;
}

.marketplaces-card h3 {
  color: white;
  font-size: 1.35rem;
  margin-bottom: 0.5rem;
}

.marketplaces-card p {
  color: #94a3b8;
  font-size: 0.9rem;
  margin-bottom: 1.5rem;
}

.social-links-grid {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.social-btn-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.85rem 1.25rem;
  border-radius: var(--radius-md);
  font-family: var(--font-primary);
  font-weight: 700;
  font-size: 0.95rem;
  transition: var(--transition);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 2rem;
  text-align: center;
  font-size: 0.85rem;
  color: #64748b;
}

/* Floating WhatsApp Button */
.whatsapp-float {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  width: 56px;
  height: 56px;
  background: #25d366;
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
  box-shadow: 0 4px 18px rgba(37, 211, 102, 0.45);
  z-index: 99;
  transition: var(--transition);
}

.whatsapp-float:hover {
  transform: scale(1.1);
}

/* Responsive Breakpoints */
@media (max-width: 868px) {
  .header-whatsapp-btn {
    display: none;
  }

  .mobile-menu-toggle {
    display: flex;
  }

  .nav-links {
    display: none;
    position: absolute;
    top: 76px;
    left: 0;
    right: 0;
    background: white;
    padding: 1.5rem;
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow-md);
    flex-direction: column;
    gap: 1rem;
    align-items: stretch;
    text-align: center;
  }

  .nav-links.open {
    display: flex;
  }

  .nav-links a {
    padding: 0.75rem 1rem;
  }

  .hero-title {
    font-size: 2.2rem;
  }

  .contact-grid,
  .modal-body {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
}

@media (max-width: 480px) {
  .hero-title {
    font-size: 1.8rem;
  }

  .hero-desc {
    font-size: 0.95rem;
  }

  .section-title {
    font-size: 1.7rem;
  }

  .products-grid {
    grid-template-columns: 1fr;
  }

  .marketplaces-card {
    padding: 1.25rem;
  }

  .social-btn-item {
    font-size: 0.85rem;
    padding: 0.75rem 1rem;
  }
}