:root {
  --bg: #f9fafb;
  --fg: #1f2937;
  --card-bg: #ffffff;
  --modal-bg: rgba(0, 0, 0, 0.7);
  --primary: #3b82f6;
  --primary-hover: #2563eb;
  --shadow-light: rgba(0, 0, 0, 0.1);
  --shadow-hover: rgba(0, 0, 0, 0.15);
  --border-radius: 12px; /* hafif küçültüldü */
  --transition-speed: 0.35s;
  --font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body.dark {
  --bg: #1e293b;
  --fg: #f9fafb;
  --card-bg: #334155;
  --modal-bg: rgba(255, 255, 255, 0.12);
  --shadow-light: rgba(255, 255, 255, 0.1);
  --shadow-hover: rgba(255, 255, 255, 0.2);
  --primary-hover: #1e40af;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  padding: 16px 12px; /* biraz daha daraltıldı */
  font-family: var(--font-family);
  background-color: var(--bg);
  color: var(--fg);
  transition: background-color var(--transition-speed) ease, color var(--transition-speed) ease;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1 {
  text-align: center;
  font-weight: 800;
  color: var(--primary);
  margin-bottom: 22px; /* küçültüldü */
  user-select: none;
  font-size: 2.3rem; /* küçültüldü */
  letter-spacing: 0.04em;
  text-shadow: 0 1px 3px rgba(0,0,0,0.1);
}

h2 {
  color: var(--primary);
  border-bottom: 3px solid var(--primary);
  padding-bottom: 8px; /* küçültüldü */
  margin: 36px auto 20px; /* küçültüldü */
  width: fit-content;
  user-select: none;
  font-weight: 700;
  letter-spacing: 0.03em;
}

header {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 18px; /* küçültüldü */
  flex-wrap: wrap;
  margin-bottom: 12px; /* küçültüldü */
}

#themeToggleBtn {
  background-color: var(--primary);
  color: #fff;
  border: none;
  padding: 10px 22px; /* küçültüldü */
  border-radius: var(--border-radius);
  cursor: pointer;
  font-weight: 700;
  font-size: 1rem; /* küçültüldü */
  box-shadow: 0 5px 15px var(--shadow-light);
  transition:
    background-color var(--transition-speed) ease,
    box-shadow var(--transition-speed) ease,
    transform 0.25s ease;
  user-select: none;
  display: block;
  margin: 0 auto 10px auto; /* küçültüldü */
  letter-spacing: 0.02em;
}

#themeToggleBtn:hover,
#themeToggleBtn:focus {
  background-color: var(--primary-hover);
  box-shadow: 0 8px 25px var(--shadow-hover);
  transform: scale(1.07);
  outline-offset: 4px;
}

#compareBtn {
  background-color: var(--primary);
  color: #fff;
  border: none;
  padding: 10px 22px; /* küçültüldü */
  border-radius: var(--border-radius);
  cursor: pointer;
  font-weight: 700;
  font-size: 1rem; /* küçültüldü */
  box-shadow: 0 5px 15px var(--shadow-light);
  transition: background-color var(--transition-speed) ease, box-shadow var(--transition-speed) ease, transform 0.3s ease;
  user-select: none;
  letter-spacing: 0.02em;
}

#compareBtn:hover:not(:disabled),
#compareBtn:focus:not(:disabled) {
  background-color: var(--primary-hover);
  box-shadow: 0 8px 25px var(--shadow-hover);
  transform: scale(1.07);
  outline-offset: 4px;
  outline: 3px solid var(--primary-hover);
}

#compareBtn:disabled {
  background-color: #999;
  cursor: not-allowed;
  box-shadow: none;
  transform: none;
  opacity: 0.65;
}

.filters {
  max-width: 1100px;
  margin: 0 auto 36px; /* küçültüldü */
  display: flex;
  gap: 12px; /* biraz sıkıştırıldı */
  flex-wrap: wrap;
  justify-content: center;
}

.filters select,
.filters input[type="text"] {
  padding: 10px 14px; /* küçültüldü */
  border-radius: var(--border-radius);
  border: 1.6px solid #ccc; /* hafif inceltildi */
  font-size: 15px; /* küçültüldü */
  background-color: var(--card-bg);
  color: var(--fg);
  box-shadow: 0 1.5px 6px var(--shadow-light);
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
  cursor: pointer;
  min-width: 140px;
  user-select: none;
  letter-spacing: 0.015em;
}

.filters select:focus,
.filters input[type="text"]:focus {
  border-color: var(--primary);
  outline: none;
  box-shadow: 0 0 10px var(--primary);
}

#rateDisplay {
  text-align: center;
  font-size: 14px; /* küçültüldü */
  margin-bottom: 28px; /* küçültüldü */
  font-style: italic;
  user-select: none;
  color: var(--fg);
  letter-spacing: 0.03em;
  font-weight: 600;
}

.grid {
  display: flex;
  flex-wrap: wrap;
  gap: 22px; /* sıkıştırıldı */
  justify-content: center;
  max-width: 1080px; /* biraz küçültüldü */
  margin: 0 auto 48px; /* küçültüldü */
  padding: 0 12px; /* küçültüldü */
}

.card {
  background: var(--card-bg);
  border-radius: var(--border-radius);
  box-shadow: 0 4px 14px var(--shadow-light); /* biraz azaltıldı */
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 210px; /* küçültüldü */
  padding: 16px 14px 22px; /* küçültüldü */
  gap: 10px; /* küçültüldü */
  position: relative;
  user-select: none;
}

.card:hover {
  transform: scale(1.07);
  box-shadow: 0 12px 35px var(--shadow-hover);
}

.card img {
  width: 100%;
  height: 145px; /* küçültüldü */
  object-fit: contain;
  border-radius: var(--border-radius);
  background-color: #f1f5f9;
  transition: filter 0.3s ease, opacity 0.3s ease;
  box-shadow: inset 0 0 5px #cbd5e1;
}

.card.outOfStock img {
  filter: grayscale(80%);
  opacity: 0.4;
}

.card-content {
  width: 100%;
  text-align: center;
  color: var(--fg);
  user-select: text;
}

.card-content h3 {
  margin: 0 0 8px 0; /* küçültüldü */
  font-size: 19px; /* küçültüldü */
  color: var(--primary);
  font-weight: 800;
  letter-spacing: 0.03em;
}

.card-content .info {
  font-size: 14px; /* küçültüldü */
  margin: 4px 0; /* küçültüldü */
  color: var(--fg);
}

.card-content .info.color {
  font-style: italic;
  color: var(--fg);
  user-select: none;
}

.card-content .price {
  margin-top: 8px; /* küçültüldü */
  font-weight: 800;
  font-size: 16px; /* küçültüldü */
  color: #0b7285;
  letter-spacing: 0.02em;
}

.stock-info {
  margin-top: 6px; /* küçültüldü */
  font-weight: 700;
  font-size: 14px; /* küçültüldü */
  letter-spacing: 0.02em;
}

.stock-info.in-stock {
  color: #22c55e;
}

.stock-info.out-stock {
  color: #ef4444;
}

/* Karşılaştırma butonu (sağ üst köşede, ikonlu) */
.compare-btn {
  position: absolute;
  top: 10px; /* biraz yukarı çekildi */
  right: 10px; /* biraz sağa çekildi */
  width: 34px; /* küçültüldü */
  height: 34px; /* küçültüldü */
  padding: 0;
  border-radius: 50%;
  border: none;
  background-color: var(--primary);
  color: white;
  cursor: pointer;
  box-shadow: 0 4px 12px var(--shadow-light);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background-color 0.3s ease, box-shadow 0.3s ease, transform 0.25s ease;
  font-size: 18px; /* küçültüldü */
  user-select: none;
}

.compare-btn:hover {
  background-color: var(--primary-hover);
  box-shadow: 0 7px 20px var(--shadow-hover);
  transform: scale(1.12);
}

.compare-btn:disabled {
  background-color: #999;
  cursor: not-allowed;
  box-shadow: none;
  opacity: 0.7;
}

.compare-btn svg {
  width: 18px; /* küçültüldü */
  height: 18px; /* küçültüldü */
  fill: currentColor;
  pointer-events: none;
}

/* Karşılaştırma paneli - seçilen ürünler */
#comparePanel {
  position: fixed;
  bottom: 26px; /* biraz yukarı çekildi */
  right: 26px; /* biraz sola çekildi */
  background: var(--card-bg);
  box-shadow: 0 8px 25px var(--shadow-hover);
  border-radius: var(--border-radius);
  padding: 14px 20px; /* küçültüldü */
  display: flex;
  align-items: center;
  gap: 14px; /* sıkıştırıldı */
  z-index: 11000;
  font-weight: 700;
  user-select: none;
  flex-wrap: wrap;
  max-width: 380px; /* küçültüldü */
  min-width: 260px; /* küçültüldü */
  overflow-x: auto;
  scrollbar-width: thin;
  scrollbar-color: var(--primary) transparent;
}

#comparePanel::-webkit-scrollbar {
  height: 6px; /* küçültüldü */
}

#comparePanel::-webkit-scrollbar-thumb {
  background-color: var(--primary);
  border-radius: 10px;
}

#resetCompareBtn {
  background-color: #e53e3e;
  color: white;
  border: none;
  padding: 10px 20px; /* küçültüldü */
  border-radius: var(--border-radius);
  cursor: pointer;
  font-weight: 700;
  font-size: 0.95rem; /* küçültüldü */
  box-shadow: 0 6px 18px rgba(229, 62, 62, 0.4);
  transition: background-color 0.3s ease, box-shadow 0.3s ease, transform 0.3s ease;
  user-select: none;
  letter-spacing: 0.02em;
}

#resetCompareBtn:hover,
#resetCompareBtn:focus {
  background-color: #c53030;
  box-shadow: 0 8px 25px rgba(197, 48, 48, 0.6);
  transform: scale(1.1);
  outline-offset: 4px;
}

#compareCount {
  font-size: 18px; /* küçültüldü */
  color: var(--primary);
  user-select: none;
  letter-spacing: 0.03em;
}

/* Seçilen ürün öğeleri */
.compare-item {
  background-color: var(--primary);
  color: white;
  padding: 6px 12px; /* küçültüldü */
  border-radius: var(--border-radius);
  margin-right: 10px; /* küçültüldü */
  font-size: 14px; /* küçültüldü */
  display: inline-flex;
  align-items: center;
  gap: 6px; /* sıkıştırıldı */
  user-select: none;
  cursor: grab;
  min-width: 100px; /* küçültüldü */
  transition: background-color 0.3s ease;
  letter-spacing: 0.015em;
  box-shadow: 0 3px 8px rgba(0,0,0,0.1);
}

.compare-item.dragging {
  opacity: 0.55;
  cursor: grabbing;
  box-shadow: 0 5px 14px rgba(0,0,0,0.15);
}

.remove-btn {
  background: transparent;
  border: none;
  color: white;
  font-weight: 800;
  font-size: 18px; /* küçültüldü */
  line-height: 1;
  cursor: pointer;
  user-select: none;
  padding: 0;
  margin: 0;
  transition: color 0.25s ease;
  letter-spacing: 0.03em;
}

.remove-btn:hover,
.remove-btn:focus {
  color: #f87171;
  outline-offset: 3px;
  outline: 2px solid #f87171;
}

/* Karşılaştırma modal */
#compareModal {
  display: none;
  position: fixed;
  z-index: 11002;
  left: 0; top: 0;
  width: 100%; height: 100%;
  background: var(--modal-bg);
  justify-content: center;
  align-items: center;
  user-select: none;
  cursor: zoom-out;
  padding: 12px;
}

.compare-content {
  border-collapse: collapse;
  width: 90%;
  max-width: 880px; /* küçültüldü */
  background-color: var(--card-bg);
  border-radius: var(--border-radius);
  overflow: hidden;
  box-shadow: 0 8px 25px var(--shadow-hover);
  user-select: text;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.compare-content th,
.compare-content td {
  border: 1.5px solid #ddd;
  padding: 12px 14px; /* küçültüldü */
  text-align: center;
  font-weight: 700;
  color: var(--fg);
}

.compare-content th {
  background-color: var(--primary);
  color: white;
  font-size: 18px; /* küçültüldü */
  user-select: none;
}

.compare-content td.highlight {
  background-color: #22c55e99;
  color: #166534;
  font-weight: 900;
}

/* Modal içeriği */
.modal {
  display: none;
  position: fixed;
  z-index: 10000;
  left: 0; top: 0;
  width: 100%; height: 100%;
  background: var(--modal-bg);
  justify-content: center;
  align-items: center;
  cursor: zoom-out;
  user-select: none;
  padding: 10px;
}

.modal-content {
  background: var(--card-bg);
  border-radius: var(--border-radius);
  padding: 26px 30px; /* küçültüldü */
  max-width: 600px; /* küçültüldü */
  width: 90%;
  max-height: 90vh;
  overflow-y: auto;
  position: relative;
  cursor: default;
  box-shadow: 0 10px 30px var(--shadow-hover);
  color: var(--fg);
  user-select: text;
  font-size: 0.95rem; /* küçültüldü */
  letter-spacing: 0.02em;
  line-height: 1.4;
}

.modal-content img {
  max-width: 100%;
  height: auto;
  border-radius: var(--border-radius);
  margin-bottom: 18px; /* küçültüldü */
  box-shadow: 0 6px 20px var(--shadow-light);
}

/* Kapatma butonu */
.close-btn {
  position: fixed;
  top: 14px; /* biraz yukarı çekildi */
  right: 14px; /* biraz sola çekildi */
  background: var(--primary);
  color: white;
  border: none;
  font-size: 30px; /* küçültüldü */
  font-weight: 800;
  padding: 8px 14px; /* küçültüldü */
  border-radius: var(--border-radius);
  cursor: pointer;
  box-shadow: 0 6px 20px var(--shadow-hover);
  user-select: none;
  transition: background-color 0.3s ease;
  z-index: 11003;
}

.close-btn:hover,
.close-btn:focus {
  background-color: var(--primary-hover);
  outline-offset: 3px;
  outline: 2px solid var(--primary-hover);
}

/* Overlay (karşılaştırma modal ve genel modal için) */
#overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: var(--modal-bg);
  z-index: 9;
}
/* Responsive grid for mobile */
@media (max-width: 640px) {
  .grid {
    flex-direction: column;
    align-items: center;
  }
  .card {
    width: 92vw !important;
    max-width: 320px;
    padding: 14px 12px 20px !important; /* mobilde de padding küçültüldü */
  }
  .filters {
    flex-direction: column;
    gap: 12px;
    padding: 0 12px;
  }
  .filters select,
  .filters input[type="text"] {
    min-width: unset;
    width: 100%;
    font-size: 16px;
    padding: 12px 16px 12px 18px;
  }
  #comparePanel {
    max-width: 95vw !important;
    right: 16px !important;
    bottom: 18px !important;
    padding: 12px 14px !important;
    flex-direction: column !important;
    gap: 12px !important;
  }
  #compareBtn,
  #resetCompareBtn {
    width: 100% !important;
    font-size: 1.1rem !important;
    padding: 12px 0 !important;
  }
}

/* İyileştirilmiş erişilebilirlik & odak animasyonları */
#themeToggleBtn:focus-visible,
#compareBtn:focus-visible,
#resetCompareBtn:focus-visible,
.filters select:focus-visible,
.filters input[type="text"]:focus-visible,
.compare-btn:focus-visible,
.remove-btn:focus-visible,
.close-btn:focus-visible {
  outline-offset: 3px;
  outline: 3px solid var(--primary-hover);
  box-shadow: 0 0 10px var(--primary-hover);
  transition: outline 0.2s ease;
}



@media (max-width: 768px) {
  .filters {
    flex-direction: column;
    gap: 8px;
  }

  .products h2 {
    font-size: 1.2rem;
    margin-top: 1rem;
  }

  .modal-content {
    width: 95%;
    max-height: 90vh;
    overflow-y: auto;
  }

  .compare-list {
    flex-direction: column;
    gap: 8px;
  }

  .grid {
    grid-template-columns: 1fr !important;
  }
}

/* EKLENEN KISIMLAR (DOSYANIN SONUNA EKLENMELİ) */

@media (max-width: 768px) {
  .filters {
    flex-direction: column;
    gap: 8px;
  }

  .products h2 {
    font-size: 1.2rem;
    margin-top: 1rem;
  }

  .modal-content {
    width: 95%;
    max-height: 90vh;
    overflow-y: auto;
  }

  .compare-list {
    flex-direction: column;
    gap: 8px;
  }

  .grid {
    grid-template-columns: 1fr !important;
  }
}

/* Arka plan karartması */
#overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: var(--modal-bg);
  z-index: 9;
}