:root {
  --arkaplan: #ffffff;
  --yazi: #000;
  --kutu: white;
  --kenarlik: #ddd;
  --birincil: #4CAF50;
  --ikincil: #000;
}

.koyu-tema {
  --arkaplan: #1a1a1a;
  --yazi: #f0f0f0;
  --kutu: #000;
  --kenarlik: #000;
  --birincil: #2E7D32;
  --ikincil: #00cc00;
}

body {
  font-family: Arial, sans-serif;
  margin: 0;
  padding: 20px;
  background-color: var(--arkaplan);
  color: var(--yazi);
  transition: all 0.3s;
}

.ana-kutu {
  max-width: 1000px;
  margin: 0 auto;
  background-color: var(--kutu);
  padding: 20px;
  border-radius: 8px;
  box-shadow: 0 0 10px rgba(0,0,0,0.1);
}

.baslik-alani {
  display: block;
  justify-items: right;
}

.tema-degistir {
  font-size: 1.5rem;
  cursor: pointer;
  padding: 5px;
}

header {
  text-align: center;
  margin-bottom: 30px;
  border-bottom: 2px solid var(--ikincil);
  padding-bottom: 20px;
}

.logo {
  font-size: 3rem;
  margin: 0;
  color: var(--ikincil);
}

.slogan {
  font-size: 1.2rem;
  color: var(--yazi);
  margin-top: 5px;
}

.arama-alani {
  margin: 20px 0;
  text-align: center;
  display: flex;
  gap: 10px;
  justify-content: center;
}

#urun-ara, #kategori-filtre {
  padding: 10px;
  border: 1px solid var(--kenarlik);
  border-radius: 4px;
  background-color: var(--kutu);
  color: var(--yazi);
}

#urun-ara {
  width: 60%;
  max-width: 400px;
}

#kategori-filtre {
  width: 30%;
  max-width: 200px;
}

.urunler {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); 
  gap: 20px;
  margin-bottom: 40px;
}


.urun {
  background: var(--kutu);
  border: 1px solid var(--kenarlik);
  padding: 15px;
  border-radius: 8px;
  text-align: center;
  transition: transform 0.3s;
}

.urun:hover {
  transform: translateY(-5px);
  box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.urun img {
  max-width: 100%;
  height: 120px;
  object-fit: cover;
  border-radius: 4px;
}

.urun {
  position: relative;
  padding-bottom: 50px;
}

.urun button {
  position: absolute;
  bottom: 15px;
  left: 15px;
  right: 15px;
  width: auto; 
  margin-top: 15px;
  background: var(--ikincil);
  color: white;
  border: none;
  padding: 8px 15px;
  border-radius: 4px;
  cursor: pointer;
}

.urun button:disabled {
  background: #ccc;
  cursor: not-allowed;
}

.sepet-butonu {
  position: fixed;
  bottom: 20px;
  right: 20px;
  background: var(--birincil);
  color: white;
  border: none;
  padding: 15px;
  border-radius: 50px;
  cursor: pointer;
  font-size: 1.5rem;
  box-shadow: 0 2px 10px rgba(0,0,0,0.2);
  z-index: 90;
}

.modal {
  display: none;
  position: fixed;
  z-index: 100;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0,0,0,0.7);
}

.modal-icerik {
  background-color: var(--kutu);
  margin: 5% auto;
  padding: 50px;
  border-radius: 8px;
  width: 90%;
  max-width: 500px;
  color: var(--yazi);
}

.kapat {
  float: right;
  font-size: 24px;
  cursor: pointer;
}

#sepet-urunleri {
  padding: 0;
  max-height: 300px;
  overflow-y: auto;
}

#sepet-urunleri li {
  list-style: none;
  padding: 8px 0;
  border-bottom: 1px solid var(--kenarlik);
  display: flex;
  justify-content: space-between;
}

.toplam {
  font-weight: bold;
  text-align: right;
  font-size: 1.2rem;
  margin-top: 15px;
}

.teslimat {
  margin: 15px 0;
  padding: 10px;
  background: var(--arkaplan);
  border-radius: 8px;
}

.teslimat select {
  width: 100%;
  padding: 8px;
  margin-top: 5px;
  background-color: var(--kutu);
  color: var(--yazi);
  border: 1px solid var(--kenarlik);
}

.sepet-butonlar {
  display: flex;
  gap: 10px;
  margin-top: 15px;
}

.sepet-butonlar button {
  flex: 1;
  padding: 10px;
  border: none;
  border-radius: 4px;
  cursor: pointer;
}

.sepet-butonlar button:first-child {
  background: #ccc;
  color: #333;
}

.odeme-butonu {
  background: var(--birincil);
  color: white;
}

#odeme-modal input {
  width: 100%;
  padding: 10px;
  margin: 10px 0;
  border: 1px solid var(--kenarlik);
  border-radius: 4px;
  background-color: var(--kutu);
  color: var(--yazi);
}

.stok-bilgi {
  font-size: 0.9rem;
  color: #666;
  margin-top: 5px;
}

.stok-az {
  color: #e53935;
}

.stok-yok {
  color: #f44336;
  font-weight: bold;
}

@media (max-width: 768px) {
  .modal-icerik {
    width: 95%;
    padding: 20px;
    margin: 10% auto;
    max-height: 90vh;
    overflow-y: auto;
    box-sizing: border-box;
  }

  .adres-alani, .kart-alani {
    margin-bottom: 15px;
  }

  .adres-alani select, 
  .adres-alani textarea,
  .kart-alani input {
    width: 100%;
    margin-bottom: 10px;
    padding: 8px;
    font-size: 14px;
    box-sizing: border-box;
  }

  .odeme-butonu {
    width: 100%;
    padding: 12px;
    font-size: 16px;
  }
}

#odeme-modal .modal-icerik {
  width: 90%;
  max-width: 500px;
  padding: 30px;
  margin: 5% auto;
  box-sizing: border-box;
}

@media (max-width: 480px) {
  #odeme-modal .modal-icerik {
    width: 95%;
    padding: 20px;
    margin: 10% auto;
  }

  .adres-alani h3, .kart-alani h3 {
    font-size: 1rem;
  }

  .odeme-butonu {
    font-size: 14px;
    padding: 10px;
  }
}