:root{--primary-button-color: #15284B; --main-third-color: #8B5CF6; --main-fourth-color: #00C753; --main-second-color: #EFF8FF; --product-card-bg: #FFFFFF; --product-card-border: #D2E4F6; --product-card-color: #15284B; --border-radius: 6px;} <style>
  /* GENEL SEPET KAPSAYICISI */
  .tmx-cart-container {
    max-width: 1200px;
    margin: 40px auto;
    padding: 0 20px;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    color: #333333;
    display: flex;
    gap: 30px;
    align-items: flex-start;
  }

  /* SOL ALAN - Ürünler Listesi */
  .tmx-cart-items-wrapper {
    flex: 1;
    background: #ffffff;
    border-radius: 12px;
    border: 1px solid #e2e8f0;
    padding: 30px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.02);
  }

  .tmx-cart-header {
    font-size: 24px;
    font-weight: 800;
    margin-bottom: 25px;
    padding-bottom: 15px;
    border-bottom: 2px solid #f1f5f9;
    display: flex;
    justify-content: space-between;
    align-items: center;
  }

  .tmx-cart-count {
    font-size: 15px;
    color: #64748b;
    font-weight: 500;
  }

  /* Tekil Sepet Ürünü */
  .tmx-cart-item {
    display: flex;
    align-items: center;
    padding: 20px 0;
    border-bottom: 1px solid #f1f5f9;
    gap: 20px;
  }

  .tmx-cart-item:last-child {
    border-bottom: none;
    padding-bottom: 0;
  }

  .tmx-item-image {
    width: 100px;
    height: 100px;
    border-radius: 8px;
    object-fit: cover;
    border: 1px solid #e2e8f0;
  }

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

  .tmx-item-title {
    font-size: 16px;
    font-weight: 700;
    color: #0f172a;
    margin-bottom: 5px;
    text-decoration: none;
    display: block;
  }

  .tmx-item-title:hover {
    color: #e52920;
  }

  .tmx-item-variant {
    font-size: 13px;
    color: #64748b;
    margin-bottom: 10px;
  }

  /* Miktar Ayarlayıcı (+ / -) */
  .tmx-qty-box {
    display: flex;
    align-items: center;
    border: 1px solid #e2e8f0;
    border-radius: 6px;
    width: fit-content;
    overflow: hidden;
  }

  .tmx-qty-btn {
    background: #f8fafc;
    border: none;
    padding: 8px 12px;
    cursor: pointer;
    font-weight: bold;
    color: #475569;
    transition: background 0.2s;
  }

  .tmx-qty-btn:hover {
    background: #e2e8f0;
  }

  .tmx-qty-input {
    width: 40px;
    text-align: center;
    border: none;
    border-left: 1px solid #e2e8f0;
    border-right: 1px solid #e2e8f0;
    font-size: 14px;
    font-weight: 600;
    outline: none;
  }

  /* Ürün Fiyat ve Silme Alanı */
  .tmx-item-actions {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 15px;
  }

  .tmx-item-price {
    font-size: 18px;
    font-weight: 800;
    color: #0f172a;
  }

  .tmx-remove-btn {
    background: transparent;
    border: none;
    color: #94a3b8;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 5px;
    font-size: 13px;
    font-weight: 600;
    transition: color 0.2s;
  }

  .tmx-remove-btn:hover {
    color: #e52920;
  }

  /* SAĞ ALAN - Sipariş Özeti */
  .tmx-summary-wrapper {
    width: 350px;
    background: #ffffff;
    border-radius: 12px;
    border: 1px solid #e2e8f0;
    padding: 30px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.02);
    position: sticky;
    top: 100px; /* Header yüksekliğine göre ayarlayın */
  }

  .tmx-summary-title {
    font-size: 20px;
    font-weight: 800;
    margin-bottom: 25px;
    padding-bottom: 15px;
    border-bottom: 2px solid #f1f5f9;
  }

  .tmx-summary-line {
    display: flex;
    justify-content: space-between;
    margin-bottom: 15px;
    font-size: 15px;
    color: #475569;
  }

  .tmx-summary-total {
    display: flex;
    justify-content: space-between;
    margin-top: 20px;
    padding-top: 20px;
    border-top: 2px dashed #e2e8f0;
    font-size: 20px;
    font-weight: 800;
    color: #0f172a;
  }

  .tmx-summary-total span:last-child {
    color: #e52920; /* Toplam tutar kırmızı vurgulu */
  }

  /* Satın Alma Butonu */
  .tmx-checkout-btn {
    display: block;
    width: 100%;
    background: #e52920;
    color: #ffffff;
    text-align: center;
    padding: 16px;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 700;
    text-decoration: none;
    margin-top: 25px;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
  }

  .tmx-checkout-btn:hover {
    background: #cc241c;
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(229, 41, 32, 0.3);
  }

  /* İndirim Kodu Alanı */
  .tmx-promo-box {
    margin-top: 25px;
    display: flex;
    gap: 10px;
  }

  .tmx-promo-input {
    flex: 1;
    padding: 10px 15px;
    border: 1px solid #e2e8f0;
    border-radius: 6px;
    font-size: 14px;
    outline: none;
  }

  .tmx-promo-btn {
    background: #0f172a;
    color: #fff;
    border: none;
    padding: 0 15px;
    border-radius: 6px;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.2s;
  }

  .tmx-promo-btn:hover {
    background: #334155;
  }

  /* MOBİL UYUMLULUK */
  @media (max-width: 992px) {
    .tmx-cart-container {
      flex-direction: column;
    }
    .tmx-summary-wrapper {
      width: 100%;
      position: relative;
      top: 0;
    }
  }

  @media (max-width: 576px) {
    .tmx-cart-item {
      flex-direction: column;
      align-items: flex-start;
      position: relative;
    }
    .tmx-item-actions {
      width: 100%;
      flex-direction: row;
      justify-content: space-between;
      align-items: center;
      margin-top: 10px;
    }
    .tmx-remove-btn {
      position: absolute;
      top: 20px;
      right: 0;
    }
    .tmx-cart-header { font-size: 20px; }
  }
</style>

<div class="tmx-cart-container">
  
  <div class="tmx-cart-items-wrapper">
    <div class="tmx-cart-header">
      <span>Sepetim</span>
      <span class="tmx-cart-count">2 Ürün</span>
    </div>

    <div class="tmx-cart-item">
      <img src="https://images.unsplash.com/photo-1581092160562-40aa08e78837?auto=format&fit=crop&q=80&w=200" alt="Ürün" class="tmx-item-image">
      
      <div class="tmx-item-details">
        <a href="#" class="tmx-item-title">Endüstriyel 3D Baskı Hizmeti (ABS)</a>
        <div class="tmx-item-variant">Renk: Siyah | Doluluk: %40</div>
        
        <div class="tmx-qty-box">
          <button class="tmx-qty-btn">-</button>
          <input type="text" value="1" class="tmx-qty-input" readonly>
          <button class="tmx-qty-btn">+</button>
        </div>
      </div>

      <div class="tmx-item-actions">
        <button class="tmx-remove-btn">
          <svg width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><polyline points="3 6 5 6 21 6"></polyline><path d="M19 6v14a2 2 0 0 1-2 2H7a2 2 0 0 1-2-2V6m3 0V4a2 2 0 0 1 2-2h4a2 2 0 0 1 2 2v2"></path></svg>
          Sil
        </button>
        <div class="tmx-item-price">850,00 TL</div>
      </div>
    </div>

    <div class="tmx-cart-item">
      <img src="https://images.unsplash.com/photo-1518770660439-4636190af475?auto=format&fit=crop&q=80&w=200" alt="Ürün" class="tmx-item-image">
      
      <div class="tmx-item-details">
        <a href="#" class="tmx-item-title">Arduino Uno R3 Klon + USB Kablo</a>
        <div class="tmx-item-variant">Kategori: Mikrodenetleyici</div>
        
        <div class="tmx-qty-box">
          <button class="tmx-qty-btn">-</button>
          <input type="text" value="2" class="tmx-qty-input" readonly>
          <button class="tmx-qty-btn">+</button>
        </div>
      </div>

      <div class="tmx-item-actions">
        <button class="tmx-remove-btn">
          <svg width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><polyline points="3 6 5 6 21 6"></polyline><path d="M19 6v14a2 2 0 0 1-2 2H7a2 2 0 0 1-2-2V6m3 0V4a2 2 0 0 1 2-2h4a2 2 0 0 1 2 2v2"></path></svg>
          Sil
        </button>
        <div class="tmx-item-price">400,00 TL</div>
      </div>
    </div>

  </div>

  <div class="tmx-summary-wrapper">
    <h3 class="tmx-summary-title">Sipariş Özeti</h3>
    
    <div class="tmx-summary-line">
      <span>Ürünler Toplamı</span>
      <span>1.250,00 TL</span>
    </div>
    <div class="tmx-summary-line">
      <span>Kargo Ücreti</span>
      <span>0,00 TL</span>
    </div>
    
    <div class="tmx-summary-total">
      <span>Genel Toplam</span>
      <span>1.250,00 TL</span>
    </div>

    <button class="tmx-checkout-btn">Sepeti Onayla</button>

    <div class="tmx-promo-box">
      <input type="text" placeholder="İndirim Kodu" class="tmx-promo-input">
      <button class="tmx-promo-btn">Uygula</button>
    </div>
  </div>

</div>