/* ============= MODERN SHOPPING CART DESIGN ================ */

/* CSS Variables */
:root {
  --cart-primary: #45B8AC;
  --cart-primary-dark: #3a9b8f;
  --cart-secondary: #667eea;
  --cart-danger: #dc3545;
  --cart-success: #28a745;
  --cart-text: #333;
  --cart-text-light: #555;
  --cart-text-lighter: #999;
  --cart-bg: #f8f9fa;
  --cart-border: #e9ecef;
  --cart-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
  --cart-shadow-hover: 0 8px 24px rgba(0, 0, 0, 0.15);
}

/* ============= CART BODY ================ */

.shopping-cart-body {
  background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
  min-height: 100vh;
  padding: 2rem 0;
}

/* ============= MODERN STEP TABS ================ */

.modern-cart-steps {
  background: #fff;
  border-radius: 16px;
  box-shadow: var(--cart-shadow);
  padding: 2rem;
  margin-bottom: 2rem;
}

.modern-step-nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  position: relative;
  margin-bottom: 2rem;
}

.modern-step-nav::before {
  content: '';
  position: absolute;
  top: 30px;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--cart-border);
  z-index: 0;
}

.modern-step-item {
  flex: 1;
  position: relative;
  z-index: 1;
  text-align: center;
}

.modern-step-circle {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: var(--cart-bg);
  border: 3px solid var(--cart-border);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 0.75rem;
  transition: all 0.3s ease;
  font-size: 1.5rem;
  color: var(--cart-text-lighter);
}

.modern-step-item.active .modern-step-circle {
  background: linear-gradient(135deg, var(--cart-primary) 0%, var(--cart-primary-dark) 100%);
  border-color: var(--cart-primary);
  color: #fff;
  box-shadow: 0 4px 12px rgba(69, 184, 172, 0.3);
  transform: scale(1.1);
}

.modern-step-item.completed .modern-step-circle {
  background: linear-gradient(135deg, var(--cart-success) 0%, #218838 100%);
  border-color: var(--cart-success);
  color: #fff;
}

.modern-step-label {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--cart-text);
  transition: color 0.3s ease;
}

.modern-step-item.active .modern-step-label {
  color: var(--cart-primary);
}

.modern-step-connector {
  position: absolute;
  top: 30px;
  left: 50%;
  width: 100%;
  height: 3px;
  background: var(--cart-primary);
  z-index: 0;
  transform: translateX(-50%);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.modern-step-item.completed .modern-step-connector {
  opacity: 1;
}

/* ============= MODERN CART CONTENT ================ */

.modern-cart-content {
  background: #fff;
  border-radius: 16px;
  box-shadow: var(--cart-shadow);
  padding: 2rem;
  margin-bottom: 2rem;
  min-height: 400px;
}

.modern-cart-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 2rem;
  padding-bottom: 1rem;
  border-bottom: 2px solid var(--cart-border);
}

.modern-cart-title {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--cart-text);
  margin: 0;
  font-family: 'Montserrat', sans-serif;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.modern-cart-title i {
  color: var(--cart-primary);
  font-size: 1.75rem;
}

/* ============= MODERN CART ITEMS ================ */

.modern-cart-seller-group {
  background: var(--cart-bg);
  border-radius: 12px;
  padding: 1.5rem;
  margin-bottom: 1.5rem;
  border: 2px solid var(--cart-border);
}

.modern-cart-seller-header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
  padding-bottom: 1rem;
  border-bottom: 2px solid var(--cart-border);
}

.modern-cart-seller-icon {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--cart-primary) 0%, var(--cart-primary-dark) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 1.25rem;
}

.modern-cart-seller-name {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--cart-text);
  margin: 0;
}

.modern-cart-item {
  display: flex;
  gap: 1.5rem;
  padding: 1.5rem;
  background: #fff;
  border-radius: 12px;
  margin-bottom: 1rem;
  border: 1px solid var(--cart-border);
  transition: all 0.3s ease;
}

.modern-cart-item:hover {
  box-shadow: var(--cart-shadow);
  transform: translateY(-2px);
}

.modern-cart-item-image {
  width: 120px;
  height: 120px;
  border-radius: 12px;
  overflow: hidden;
  flex-shrink: 0;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.modern-cart-item-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.modern-cart-item-details {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.modern-cart-item-title {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--cart-text);
  margin: 0;
  line-height: 1.4;
}

.modern-cart-item-title a {
  color: var(--cart-text);
  text-decoration: none;
  transition: color 0.3s ease;
}

.modern-cart-item-title a:hover {
  color: var(--cart-primary);
}

.modern-cart-item-meta {
  display: flex;
  gap: 1rem;
  font-size: 0.875rem;
  color: var(--cart-text-light);
  flex-wrap: wrap;
}

.modern-cart-item-price {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--cart-primary);
}

.modern-cart-item-actions {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  align-items: flex-end;
}

.modern-cart-quantity {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  border: 2px solid var(--cart-border);
  border-radius: 8px;
  padding: 0.25rem;
}

.modern-cart-quantity button {
  width: 32px;
  height: 32px;
  border: none;
  background: var(--cart-bg);
  color: var(--cart-text);
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.3s ease;
  display: flex;
  align-items: center;
  justify-content: center;
}

.modern-cart-quantity button:hover {
  background: var(--cart-primary);
  color: #fff;
}

.modern-cart-quantity input {
  width: 50px;
  border: none;
  text-align: center;
  font-weight: 600;
  font-size: 1rem;
}

.modern-cart-remove {
  padding: 0.5rem 1rem;
  background: linear-gradient(135deg, var(--cart-danger) 0%, #c82333 100%);
  color: #fff;
  border: none;
  border-radius: 8px;
  font-weight: 600;
  font-size: 0.875rem;
  cursor: pointer;
  transition: all 0.3s ease;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.modern-cart-remove:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(220, 53, 69, 0.3);
}

.modern-cart-total {
  background: linear-gradient(135deg, var(--cart-primary) 0%, var(--cart-primary-dark) 100%);
  color: #fff;
  padding: 1.5rem;
  border-radius: 12px;
  margin-top: 1.5rem;
}

.modern-cart-total-label {
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.modern-cart-total-amount {
  font-size: 2rem;
  font-weight: 700;
}

/* ============= MODERN BUTTONS ================ */

.modern-cart-button {
  padding: 0.75rem 2rem;
  border-radius: 8px;
  font-weight: 600;
  border: none;
  transition: all 0.3s ease;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 1rem;
  cursor: pointer;
}

.modern-cart-button-primary {
  background: linear-gradient(135deg, var(--cart-primary) 0%, var(--cart-primary-dark) 100%);
  color: #fff;
  box-shadow: 0 4px 12px rgba(69, 184, 172, 0.3);
}

.modern-cart-button-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(69, 184, 172, 0.4);
  color: #fff;
}

.modern-cart-button-secondary {
  background: #fff;
  color: var(--cart-primary);
  border: 2px solid var(--cart-primary);
}

.modern-cart-button-secondary:hover {
  background: var(--cart-primary);
  color: #fff;
}

.modern-cart-actions {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 2rem;
  background: #fff;
  border-radius: 16px;
  box-shadow: var(--cart-shadow);
  flex-wrap: wrap;
  gap: 1rem;
}

/* ============= EMPTY CART ================ */

.modern-cart-empty {
  text-align: center;
  padding: 4rem 2rem;
}

.modern-cart-empty-icon {
  font-size: 5rem;
  color: var(--cart-text-lighter);
  margin-bottom: 1.5rem;
  opacity: 0.5;
}

.modern-cart-empty-title {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--cart-text);
  margin-bottom: 0.75rem;
}

.modern-cart-empty-text {
  font-size: 1rem;
  color: var(--cart-text-light);
  margin-bottom: 2rem;
}

/* ============= RESPONSIVE ================ */

@media (max-width: 768px) {
  .modern-step-nav {
    flex-direction: column;
    gap: 1rem;
  }
  
  .modern-step-nav::before {
    display: none;
  }
  
  .modern-step-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    text-align: left;
  }
  
  .modern-step-circle {
    margin: 0;
  }
  
  .modern-cart-item {
    flex-direction: column;
  }
  
  .modern-cart-item-image {
    width: 100%;
    height: 200px;
  }
  
  .modern-cart-item-actions {
    flex-direction: row;
    justify-content: space-between;
    width: 100%;
  }
  
  .modern-cart-actions {
    flex-direction: column;
  }
  
  .modern-cart-actions .modern-cart-button {
    width: 100%;
    justify-content: center;
  }
}