/* Simple, Clean Fridge App */
:root {
  --bg-color: #ffffff;
  --text-color: #333333;
  --primary-color: #007bff;
  --primary-hover: #0056b3;
  --success-color: #28a745;
  --warning-color: #ffc107;
  --danger-color: #dc3545;
  --border-color: #dee2e6;
  --card-bg: #ffffff;
  --shadow: 0 2px 4px rgba(0,0,0,0.1);
  --border-radius: 6px;
}

body.dark {
  --bg-color: #1a1a1a;
  --text-color: #e9ecef;
  --primary-color: #0d6efd;
  --primary-hover: #0b5ed7;
  --border-color: #495057;
  --card-bg: #2d2d2d;
  --shadow: 0 2px 4px rgba(0,0,0,0.3);
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background-color: var(--bg-color);
  color: var(--text-color);
  line-height: 1.6;
  padding: 20px;
}

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

.header {
  text-align: center;
  margin-bottom: 30px;
  padding: 20px;
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow);
}

.header h1 {
  margin: 0 0 20px 0;
  font-size: 2rem;
  font-weight: 600;
  color: var(--text-color);
}

.controls {
  display: flex;
  justify-content: center;
  gap: 10px;
  margin-bottom: 20px;
  flex-wrap: wrap;
}

.controls select,
.controls button {
  padding: 8px 16px;
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  background: var(--card-bg);
  color: var(--text-color);
  font-size: 14px;
  cursor: pointer;
}

.controls button:hover {
  background-color: var(--primary-color);
  color: white;
}

.input-section {
  display: flex;
  gap: 10px;
  justify-content: center;
  align-items: center;
  flex-wrap: wrap;
}

.input-section input {
  flex: 1;
  min-width: 250px;
  max-width: 400px;
  padding: 12px 16px;
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  background: var(--card-bg);
  color: var(--text-color);
  font-size: 16px;
}

.input-section input:focus {
  outline: none;
  border-color: var(--primary-color);
}

.input-section button {
  padding: 12px 20px;
  border: none;
  border-radius: var(--border-radius);
  font-size: 16px;
  font-weight: 500;
  cursor: pointer;
  white-space: nowrap;
}

#add-button {
  background-color: var(--primary-color);
  color: white;
}

#add-button:hover {
  background-color: var(--primary-hover);
}

#voice-button {
  background-color: var(--success-color);
  color: white;
}

#voice-button:hover {
  background-color: #218838;
}

#voice-button.listening {
  background-color: var(--danger-color);
}

#fridge-container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
  margin-top: 30px;
}

.category {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow);
  padding: 20px;
  min-height: 200px;
}

.category h2 {
  margin: 0 0 15px 0;
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text-color);
  text-align: center;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--border-color);
}

.category ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.fridge-item {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  padding: 12px;
  margin-bottom: 8px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.fridge-item.expired {
  border-left: 4px solid var(--danger-color);
  background-color: rgba(220, 53, 69, 0.1);
}

.fridge-item.expiring-soon {
  border-left: 4px solid var(--warning-color);
  background-color: rgba(255, 193, 7, 0.1);
}

.item-info {
  flex: 1;
}

.item-name {
  font-weight: 500;
  margin-bottom: 4px;
  color: var(--text-color);
}

.item-expiry {
  font-size: 0.85rem;
  color: #6c757d;
  display: flex;
  align-items: center;
  gap: 8px;
}

.days-left {
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 12px;
  font-size: 0.75rem;
  background: var(--primary-color);
  color: white;
}

.days-left.expired {
  background: var(--danger-color);
}

.days-left.expiring {
  background: var(--warning-color);
  color: #000;
}

.fridge-item button {
  background: var(--danger-color);
  color: white;
  border: none;
  border-radius: 50%;
  width: 28px;
  height: 28px;
  cursor: pointer;
  font-size: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.fridge-item button:hover {
  background: #c82333;
}

#category-picker {
  position: fixed;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  padding: 10px;
  border-radius: 20px;
  display: flex;
  gap: 8px;
  z-index: 1000;
  box-shadow: var(--shadow);
}

#category-picker.hidden {
  display: none;
}

#category-picker button {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 8px;
  font-size: 16px;
  cursor: pointer;
  min-width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
}

#category-picker button:hover {
  background: var(--primary-color);
  color: white;
}

/* Status messages */
.status-message {
  text-align: center;
  padding: 12px;
  border-radius: var(--border-radius);
  margin: 15px 0;
  font-weight: 500;
}

.status-message.success {
  background: rgba(40, 167, 69, 0.1);
  color: var(--success-color);
  border: 1px solid rgba(40, 167, 69, 0.2);
}

.status-message.error {
  background: rgba(220, 53, 69, 0.1);
  color: var(--danger-color);
  border: 1px solid rgba(220, 53, 69, 0.2);
}

/* Mobile responsive */
@media (max-width: 768px) {
  body {
    padding: 10px;
  }
  
  .header {
    padding: 15px;
  }
  
  .header h1 {
    font-size: 1.5rem;
  }
  
  .input-section {
    flex-direction: column;
    gap: 10px;
  }
  
  .input-section input {
    min-width: unset;
    width: 100%;
  }
  
  .input-section button {
    width: 100%;
  }
  
  #fridge-container {
    grid-template-columns: 1fr;
    gap: 15px;
  }
  
  .category {
    padding: 15px;
  }
}

/* Focus styles for accessibility */
button:focus,
input:focus,
select:focus {
  outline: 2px solid var(--primary-color);
  outline-offset: 2px;
}