/* Futuristic Shopping List CSS */
:root {
  --primary-color: #00f3ff;
  --secondary-color: #ff00e6;
  --dark-bg: #0a0a1a;
  --light-bg: #1a1a2e;
  --card-bg: #16213e;
  --text-primary: #ffffff;
  --text-secondary: #a0a0c0;
  --success: #00ff9d;
  --warning: #ffcc00;
  --danger: #ff3855;
  --border-radius: 12px;
  --box-shadow: 0 8px 32px rgba(0, 243, 255, 0.1);
  --transition: all 0.3s ease;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background: var(--dark-bg);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
  padding: 20px;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
}

.header {
  text-align: center;
  margin-bottom: 30px;
  padding: 20px;
  background: rgba(22, 33, 62, 0.7);
  border-radius: var(--border-radius);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(0, 243, 255, 0.2);
  box-shadow: var(--box-shadow);
}

.header h1 {
  font-size: 2.5rem;
  margin-bottom: 10px;
  background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.header p {
  color: var(--text-secondary);
  font-size: 1.1rem;
}

.main-content {
  margin-bottom: 30px;
}

.controls {
  text-align: center;
  margin-bottom: 30px;
}

.btn {
  padding: 12px 24px;
  border: none;
  border-radius: var(--border-radius);
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
}

.btn-primary {
  background: linear-gradient(90deg, var(--primary-color), #00b8ff);
  color: var(--dark-bg);
  box-shadow: 0 4px 15px rgba(0, 243, 255, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0, 243, 255, 0.5);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.1);
  color: var(--text-primary);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.2);
}

.btn-danger {
  background: rgba(255, 56, 85, 0.2);
  color: var(--danger);
  border: 1px solid rgba(255, 56, 85, 0.3);
}

.btn-danger:hover {
  background: rgba(255, 56, 85, 0.3);
  transform: scale(1.05);
}

.lists-container {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 20px;
  margin-bottom: 30px;
}

.list-card {
  position: relative;
  display: flex;
  align-items: center;
  gap: 12px;
  background: var(--card-bg);
  border-radius: var(--border-radius);
  padding: 12px 16px;
  backdrop-filter: blur(10px);
  border: 1px solid rgba(0, 243, 255, 0.2);
  box-shadow: var(--box-shadow);
  transition: var(--transition);
  cursor: pointer;
}

.list-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 25px rgba(0, 243, 255, 0.2);
}

.list-card:hover .list-name-link {
  color: var(--primary-color);
  text-shadow: 0 0 8px rgba(0, 243, 255, 0.5);
}

.list-name-link {
  flex: 1;
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-primary);
  text-decoration: none;
  transition: var(--transition);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.list-name-link::after {
  content: '';
  position: absolute;
  inset: 0;
}

.list-stat {
  color: var(--text-secondary);
  font-size: 0.85rem;
  white-space: nowrap;
  flex-shrink: 0;
}

.btn-icon {
  padding: 7px 10px;
}

.item-qty-badge {
  margin-left: auto;
  background: rgba(0, 243, 255, 0.15);
  color: var(--primary-color);
  padding: 2px 8px;
  border-radius: 10px;
  font-size: 0.8rem;
  font-weight: bold;
}

.list-actions {
  position: relative;
  z-index: 1;
  display: flex;
  gap: 8px;
  flex-shrink: 0;
}

.list-items {
  margin-top: 15px;
}

.item {
  padding: 10px 15px;
  margin-bottom: 8px;
  background: rgba(255, 255, 255, 0.05);
  border-radius: 8px;
  display: flex;
  align-items: center;
  gap: 10px;
  transition: var(--transition);
}

.item.completed {
  opacity: 0.7;
  text-decoration: line-through;
}

.item.completed span {
  color: var(--text-secondary);
}

.item:hover {
  background: rgba(0, 243, 255, 0.1);
}

.no-items {
  text-align: center;
  color: var(--text-secondary);
  padding: 20px;
}

.empty-state {
  text-align: center;
  padding: 40px 20px;
  color: var(--text-secondary);
}

.empty-state i {
  margin-bottom: 15px;
  color: var(--primary-color);
}

.list-controls {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 30px;
  flex-wrap: wrap;
  gap: 15px;
}

.search-box {
  position: relative;
  flex: 1;
  max-width: 400px;
}

.search-box i {
  position: absolute;
  left: 15px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-secondary);
}

.search-box input {
  width: 100%;
  padding: 12px 15px 12px 40px;
  border-radius: var(--border-radius);
  border: 1px solid rgba(255, 255, 255, 0.2);
  background: rgba(26, 26, 46, 0.7);
  color: var(--text-primary);
  font-size: 1rem;
}

.search-box input:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(0, 243, 255, 0.2);
}

.items-container {
  background: var(--card-bg);
  border-radius: var(--border-radius);
  padding: 20px;
  backdrop-filter: blur(10px);
  border: 1px solid rgba(0, 243, 255, 0.2);
  box-shadow: var(--box-shadow);
}

.item-card {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 18px;
  margin-bottom: 10px;
  background: rgba(255, 255, 255, 0.05);
  border-radius: var(--border-radius);
  transition: var(--transition);
  animation: fadeIn 0.3s ease;
  min-height: 56px;
}

.item-card:hover {
  background: rgba(0, 243, 255, 0.1);
}

.drag-handle {
  color: var(--text-secondary);
  cursor: grab;
  padding: 0 4px;
  flex-shrink: 0;
  opacity: 0.5;
  transition: opacity 0.2s;
  touch-action: none;
}

.drag-handle:active {
  cursor: grabbing;
}

.item-card:hover .drag-handle {
  opacity: 1;
}

.sortable-ghost {
  opacity: 0.35;
  background: rgba(0, 243, 255, 0.08) !important;
}

.sortable-drag {
  opacity: 1 !important;
  box-shadow: 0 8px 24px rgba(0, 243, 255, 0.25) !important;
}

.item-quantity {
  background: rgba(0, 243, 255, 0.2);
  color: var(--primary-color);
  padding: 4px 10px;
  border-radius: 12px;
  font-size: 0.9rem;
  font-weight: bold;
  white-space: nowrap;
  cursor: pointer;
  flex-shrink: 0;
}

.item-quantity:hover {
  background: rgba(0, 243, 255, 0.35);
}

.item-name {
  font-size: 1.1rem;
  flex: 1;
}

.item-card.completed .item-name {
  text-decoration: line-through;
  color: var(--text-secondary);
}

.delete-item-btn {
  padding: 8px 12px;
  background: rgba(255, 56, 85, 0.2);
  border: 1px solid rgba(255, 56, 85, 0.3);
  border-radius: 8px;
  color: var(--danger);
  cursor: pointer;
  transition: var(--transition);
}

.delete-item-btn:hover {
  background: rgba(255, 56, 85, 0.3);
  transform: scale(1.05);
}

.modal {
  display: none;
  position: fixed;
  z-index: 1000;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(5px);
  animation: fadeIn 0.3s ease;
}

.modal-content {
  background-color: var(--card-bg);
  margin: 10% auto;
  padding: 0;
  border-radius: var(--border-radius);
  width: 90%;
  max-width: 500px;
  border: 1px solid rgba(0, 243, 255, 0.2);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5);
  animation: slideIn 0.3s ease;
}

.modal-header {
  padding: 20px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.modal-header h3 {
  margin: 0;
  color: var(--primary-color);
}

.close {
  color: var(--text-secondary);
  font-size: 28px;
  font-weight: bold;
  cursor: pointer;
  transition: var(--transition);
}

.close:hover {
  color: var(--danger);
}

.modal-body {
  padding: 20px;
}

.modal-body input {
  width: 100%;
  padding: 12px 15px;
  border-radius: var(--border-radius);
  border: 1px solid rgba(255, 255, 255, 0.2);
  background: rgba(26, 26, 46, 0.7);
  color: var(--text-primary);
  font-size: 1rem;
  margin-bottom: 15px;
}

.modal-qty-row {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 4px;
}

.modal-qty-label {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

.modal-qty-input {
  width: 4em !important;
  padding: 4px 10px !important;
  border-radius: 12px !important;
  border: 1px solid rgba(0, 243, 255, 0.4) !important;
  background: rgba(0, 243, 255, 0.15) !important;
  color: var(--primary-color) !important;
  font-size: 0.95rem !important;
  font-weight: bold;
  text-align: center;
  margin-bottom: 0 !important;
  outline: none;
}

.modal-qty-input:focus {
  border-color: var(--primary-color) !important;
  box-shadow: 0 0 0 2px rgba(0, 243, 255, 0.2) !important;
}

.modal-footer {
  padding: 20px;
  display: flex;
  justify-content: flex-end;
  gap: 10px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes slideIn {
  from { transform: translateY(-50px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

.footer {
  text-align: center;
  padding: 20px;
  color: var(--text-secondary);
  font-size: 0.9rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  margin-top: 30px;
}

/* Responsive design */
@media (max-width: 768px) {
  .container {
    padding: 10px;
  }

  .header h1 {
    font-size: 2rem;
  }

  .lists-container {
    grid-template-columns: 1fr;
  }

  .list-controls {
    flex-direction: column;
    align-items: stretch;
  }

  .search-box {
    max-width: 100%;
  }

  .item-card {
    padding: 12px 14px;
  }
}

/* Animation for new items */
@keyframes pulse {
  0% { transform: scale(1); }
  50% { transform: scale(1.05); }
  100% { transform: scale(1); }
}

.item-card.new-item {
  animation: pulse 0.5s ease;
}