/* ============================================
   MODERN CSS - Serdar Pet PWA Upgrade
   Mobile-first, performans odakli
   ============================================ */

/* --- CSS Custom Properties --- */
:root {
  --primary: #ff6b35;
  --primary-dark: #e55a2b;
  --primary-light: #ff8f66;
  --secondary: #2c3e50;
  --success: #27ae60;
  --danger: #e74c3c;
  --warning: #f39c12;
  --info: #3498db;
  --bg-light: #f8f9fa;
  --bg-white: #ffffff;
  --text-dark: #2c3e50;
  --text-muted: #7f8c8d;
  --border-color: #e9ecef;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.1);
  --shadow-lg: 0 8px 30px rgba(0,0,0,0.12);
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-full: 50px;
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
  --font-primary: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --header-height: 70px;
  --mobile-nav-height: 60px;
}

/* --- Genel Reset ve Base --- */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-primary);
  color: var(--text-dark);
  background: var(--bg-light);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

/* --- Yukleniyor Spinner Modernize --- */
#yukleniyor {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--bg-white);
  z-index: 99999;
  display: flex;
  align-items: center;
  justify-content: center;
}

#yukleniyor img {
  width: 60px;
  height: 60px;
  animation: pulse 1.5s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { transform: scale(1); opacity: 1; }
  50% { transform: scale(1.1); opacity: 0.7; }
}

/* --- Header / Logo Alani --- */
#logo img {
  transition: transform var(--transition-normal);
  filter: drop-shadow(var(--shadow-sm));
}

#logo:hover img {
  transform: scale(1.03);
}

/* --- Arama Kutusu Modern --- */
#ara {
  position: relative;
  display: flex;
  align-items: center;
}

#ara input.form-control {
  border: 2px solid var(--border-color);
  border-radius: var(--radius-full);
  padding: 10px 110px 10px 42px;
  font-size: 14px;
  transition: all var(--transition-normal);
  background: var(--bg-white);
  height: 44px;
}

#ara input.form-control:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(255, 107, 53, 0.15);
  outline: none;
}

#ara > i.fa-search {
  position: absolute;
  left: 16px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  font-size: 15px;
  z-index: 2;
}

#ara button {
  position: absolute;
  right: 4px;
  top: 50%;
  transform: translateY(-50%);
  background: var(--primary);
  color: #fff;
  border: none;
  border-radius: var(--radius-full);
  padding: 8px 24px;
  font-weight: 600;
  font-size: 13px;
  cursor: pointer;
  transition: background var(--transition-fast);
  height: 36px;
  line-height: 1;
}

#ara button:hover {
  background: var(--primary-dark);
}

/* --- Kayit-Giris ve Sepetim Butonlari --- */
.kayit-giris,
.sepetim {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
  text-decoration: none;
  color: var(--text-dark);
}

.kayit-giris:hover,
.sepetim:hover {
  background: var(--bg-light);
  color: var(--primary);
  text-decoration: none;
}

.kayit-giris i,
.sepetim i {
  font-size: 22px;
  color: var(--primary);
}

.sepetim {
  cursor: pointer;
  position: relative;
}

.sepetim span {
  position: absolute;
  top: 2px;
  left: 28px;
  background: var(--danger);
  color: #fff;
  font-size: 11px;
  font-weight: 700;
  width: 20px;
  height: 20px;
  line-height: 20px;
  text-align: center;
  border-radius: 50%;
  animation: cartBounce 0.3s ease;
}

@keyframes cartBounce {
  0% { transform: scale(0); }
  50% { transform: scale(1.2); }
  100% { transform: scale(1); }
}

/* --- Ana Menu Bar (Slider) --- */
#ana_menu_dis {
  background: var(--secondary);
  box-shadow: var(--shadow-md);
  position: sticky;
  top: 0;
  z-index: 1000;
  transition: box-shadow var(--transition-normal);
}

#ana_menu_dis.scrolled {
  box-shadow: var(--shadow-lg);
}

.ana_menu a {
  color: #fff !important;
  font-weight: 500;
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.3px;
  padding: 14px 16px;
  display: block;
  transition: all var(--transition-fast);
  white-space: nowrap;
  border-radius: var(--radius-sm);
}

.ana_menu a:hover {
  background: rgba(255,255,255,0.1);
  color: var(--primary-light) !important;
  text-decoration: none;
}

/* --- Cizgi Dekorasyon Modern --- */
#cizgi-dis {
  display: flex;
  height: 4px;
  overflow: hidden;
}

#cizgi-dis > div {
  flex: 1;
  transition: opacity var(--transition-normal);
}

.cizgi1 { background: var(--primary); }
.cizgi2 { background: var(--primary-dark); }
.cizgi3 { background: var(--secondary); }
.cizgi4 { background: var(--info); }
.cizgi5 { background: var(--success); }
.cizgi6 { background: var(--warning); }

/* --- Urun Kartlari Modern --- */
.urun,
.urun_list,
[class*="product-card"] {
  background: var(--bg-white);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
  overflow: hidden;
  border: 1px solid var(--border-color);
}

.urun:hover,
.urun_list:hover,
[class*="product-card"]:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
  border-color: var(--primary-light);
}

.urun img,
.urun_list img {
  transition: transform var(--transition-normal);
}

.urun:hover img,
.urun_list:hover img {
  transform: scale(1.05);
}

/* --- Butonlar Genel --- */
.btn-primary,
.btn-success,
.btn-danger,
.btn-warning,
.btn-info,
.sepete-ekle,
.btn-sepet {
  border-radius: var(--radius-full) !important;
  font-weight: 600;
  letter-spacing: 0.3px;
  transition: all var(--transition-fast);
  border: none;
  box-shadow: var(--shadow-sm);
}

.btn-primary,
.sepete-ekle,
.btn-sepet {
  background: var(--primary) !important;
  color: #fff !important;
}

.btn-primary:hover,
.sepete-ekle:hover,
.btn-sepet:hover {
  background: var(--primary-dark) !important;
  box-shadow: var(--shadow-md);
  transform: translateY(-1px);
}

.btn-primary:active,
.sepete-ekle:active {
  transform: translateY(0);
}

/* --- Footer Modern --- */
footer {
  background: var(--bg-white);
  border-top: 1px solid var(--border-color);
}

#etiket_dis {
  background: var(--bg-light);
}

#etiket_dis h4 {
  color: var(--secondary);
  font-weight: 700;
  font-size: 18px;
}

#en_alt {
  background: var(--secondary);
  color: rgba(255,255,255,0.8);
  font-size: 13px;
  padding: 16px 0;
}

#en_alt a {
  color: var(--primary-light);
  text-decoration: none;
}

#en_alt a:hover {
  color: var(--primary);
  text-decoration: underline;
}

.kategori-sayfa li:first-child {
  font-weight: 700;
  color: var(--secondary);
  font-size: 16px;
  margin-bottom: 8px;
}

.kategori-sayfa a {
  color: var(--text-muted);
  transition: color var(--transition-fast);
  font-size: 13px;
}

.kategori-sayfa a:hover {
  color: var(--primary);
  text-decoration: none;
}

/* --- Telefon / Adres Alani --- */
.telefon {
  display: flex;
  align-items: center;
  gap: 12px;
}

.telefon img {
  width: 42px;
  height: 42px;
}

.telefon a {
  font-size: 18px;
  font-weight: 700;
  color: var(--primary);
}

.adres-email {
  margin-top: 12px;
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.8;
}

/* --- Sosyal Medya Ikonlari --- */
.menu2 li a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--bg-light);
  color: var(--text-muted);
  transition: all var(--transition-fast);
  font-size: 16px;
}

.menu2 li a:hover {
  color: #fff;
  transform: translateY(-2px);
}

.menu2 li a[title="whatsapp"]:hover { background: #25D366; }
.menu2 li a[title="facebook"]:hover { background: #1877F2; }
.menu2 li a[title="youtube"]:hover { background: #FF0000; }
.menu2 li a[title="twitter"]:hover { background: #1DA1F2; }
.menu2 li a[title="instagram"]:hover { background: linear-gradient(45deg, #f09433, #e6683c, #dc2743, #cc2366, #bc1888); }

/* --- Scroll to Top Butonu --- */
.scroll-top-btn {
  position: fixed;
  bottom: 90px;
  right: 24px;
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background: var(--primary);
  color: #fff;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  box-shadow: var(--shadow-md);
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
  transition: all var(--transition-normal);
  z-index: 9990;
}

.scroll-top-btn.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.scroll-top-btn:hover {
  background: var(--primary-dark);
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
}

/* --- Mobile Bottom Navigation --- */
.mobile-nav {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  height: var(--mobile-nav-height);
  background: var(--bg-white);
  border-top: 1px solid var(--border-color);
  box-shadow: 0 -2px 10px rgba(0,0,0,0.08);
  z-index: 9999;
  padding: 0;
}

.mobile-nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-around;
  height: 100%;
  max-width: 500px;
  margin: 0 auto;
}

.mobile-nav-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  color: var(--text-muted);
  font-size: 10px;
  font-weight: 500;
  gap: 3px;
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  transition: color var(--transition-fast);
  position: relative;
}

.mobile-nav-item i {
  font-size: 20px;
  transition: color var(--transition-fast);
}

.mobile-nav-item.active,
.mobile-nav-item:hover {
  color: var(--primary);
  text-decoration: none;
}

.mobile-nav-item .badge-cart {
  position: absolute;
  top: 2px;
  right: 4px;
  background: var(--danger);
  color: #fff;
  font-size: 9px;
  font-weight: 700;
  min-width: 16px;
  height: 16px;
  line-height: 16px;
  text-align: center;
  border-radius: 50%;
}

/* --- Toast Bildirim --- */
.toast-notification {
  position: fixed;
  top: 20px;
  right: 20px;
  background: var(--secondary);
  color: #fff;
  padding: 14px 24px;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  z-index: 99999;
  font-size: 14px;
  font-weight: 500;
  transform: translateX(120%);
  transition: transform var(--transition-normal);
  max-width: 340px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.toast-notification.show {
  transform: translateX(0);
}

.toast-notification.toast-success { border-left: 4px solid var(--success); }
.toast-notification.toast-error { border-left: 4px solid var(--danger); }
.toast-notification.toast-info { border-left: 4px solid var(--info); }
.toast-notification.toast-warning { border-left: 4px solid var(--warning); }

/* --- WhatsApp Butonu Modernize --- */
.whatsapp_icon_dis {
  left: 24px !important;
  bottom: 24px !important;
  transition: transform var(--transition-normal);
}

.whatsapp_icon_dis:hover {
  transform: scale(1.05);
}

.whatsapp_icon_dis .whatsapp_icon {
  width: 56px !important;
  height: 56px;
  font-size: 32px !important;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  box-shadow: var(--shadow-md);
}

.whatsapp_icon_dis .whatsapp_text {
  border-radius: var(--radius-full) !important;
  font-size: 13px;
  font-weight: 500;
  padding: 6px 18px 6px 14px !important;
  box-shadow: var(--shadow-sm);
}

/* --- Form Elemanlari --- */
.form-control {
  border-radius: var(--radius-sm);
  border: 2px solid var(--border-color);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
  font-size: 14px;
}

.form-control:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(255, 107, 53, 0.1);
}

/* --- Breadcrumb --- */
.breadcrumb {
  background: transparent;
  padding: 12px 0;
  font-size: 13px;
}

.breadcrumb > li + li::before {
  content: '\f105';
  font-family: FontAwesome;
  color: var(--text-muted);
}

.breadcrumb a {
  color: var(--primary);
}

/* --- Etiket Listesi (footer) --- */
ul.ozel li a {
  display: inline-block;
  padding: 4px 12px;
  margin: 3px;
  background: var(--bg-white);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-full);
  font-size: 12px;
  color: var(--text-muted);
  transition: all var(--transition-fast);
}

ul.ozel li a:hover {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
  text-decoration: none;
}

/* --- Skeleton Loader (lazy load icin) --- */
.skeleton {
  background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
  background-size: 200% 100%;
  animation: skeleton-loading 1.5s infinite;
  border-radius: var(--radius-sm);
}

@keyframes skeleton-loading {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* --- Responsive --- */
@media (max-width: 991px) {
  .mobile-nav {
    display: block;
  }

  body {
    padding-bottom: var(--mobile-nav-height);
  }

  .whatsapp_icon_dis {
    bottom: 70px !important;
  }

  .whatsapp_icon_dis .whatsapp_text {
    display: none !important;
  }

  .whatsapp_icon_dis .whatsapp_icon {
    width: 48px !important;
    height: 48px;
    font-size: 26px !important;
  }

  .scroll-top-btn {
    bottom: 130px;
    right: 16px;
    width: 40px;
    height: 40px;
    font-size: 18px;
  }

  .baloncuk {
    display: none !important;
  }
}

@media (max-width: 767px) {
  :root {
    --header-height: 56px;
  }

  .container {
    padding-left: 12px;
    padding-right: 12px;
  }

  #ara input.form-control {
    font-size: 16px; /* iOS zoom engellemek icin */
    height: 42px;
  }

  #ara button {
    padding: 8px 16px;
    font-size: 12px;
  }

  .urun:hover,
  .urun_list:hover {
    transform: none;
  }

  .toast-notification {
    right: 12px;
    left: 12px;
    max-width: none;
  }
}

@media (max-width: 480px) {
  .ana_menu a {
    font-size: 12px;
    padding: 12px 10px;
  }

  .kategori-sayfa {
    margin-bottom: 20px;
  }
}

/* --- Print Stiller --- */
@media print {
  .mobile-nav,
  .scroll-top-btn,
  .whatsapp_icon_dis,
  .toast-notification,
  #yukleniyor {
    display: none !important;
  }
}

/* --- Erisilebilirlik --- */
:focus-visible {
  outline: 3px solid var(--primary);
  outline-offset: 2px;
}

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

/* --- Reduce Motion --- */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* --- Dark Mode Hazirlik (opsiyonel) --- */
@media (prefers-color-scheme: dark) {
  /* Ileride aktif edilebilir */
}