web/src/components/layout/Sidebar.css

/* Sidebar Component Styles */
.terra-sidebar {
  position: fixed;
  left: 0;
  top: 0;
  height: 100vh;
  background: #2E7D32;
  color: white;
  transition: width 0.3s ease;
  display: flex;
  flex-direction: column;
  z-index: 1000;
  box-shadow: 2px 0 10px rgba(0, 0, 0, 0.1);
  overflow: hidden; /* Keep overflow hidden for smooth width transition */
}

.terra-sidebar--open {
  width: 280px;
}

.terra-sidebar--closed {
  width: 70px;
}

/* Header Section */
.terra-sidebar__header {
  padding: 20px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.2);
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 80px;
}

.terra-sidebar__logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  flex: 1;
  min-width: 0;
}

.terra-sidebar__logo-icon {
  font-size: 2.5rem;
  animation: gentle-pulse 3s ease-in-out infinite;
  flex-shrink: 0;
}

@keyframes gentle-pulse {
  0%, 100% { 
    transform: scale(1); 
  }
  50% { 
    transform: scale(1.05); 
  }
}

.terra-sidebar__logo-text {
  min-width: 0;
  opacity: 1;
  transition: opacity var(--transition-normal);
}

.terra-sidebar--closed .terra-sidebar__logo-text {
  opacity: 0;
  pointer-events: none;
}

.terra-sidebar__logo-title {
  font-size: 1.4rem;
  font-weight: 700;
  margin: 0 0 4px 0;
  color: white;
  white-space: nowrap;
}

.terra-sidebar__logo-subtitle {
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.8);
  margin: 0;
  white-space: nowrap;
}

.terra-sidebar__toggle {
  background: rgba(255, 255, 255, 0.2);
  border: none;
  color: white;
  width: 32px;
  height: 32px;
  border-radius: 6px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s ease;
  font-size: 0.9rem;
}

.terra-sidebar__toggle:hover {
  background: rgba(255, 255, 255, 0.25);
  transform: scale(1.05);
}

.terra-sidebar__toggle:focus {
  outline: none;
  box-shadow: 0 0 0 2px rgba(255, 255, 255, 0.3);
}

.terra-sidebar__toggle-icon {
  transition: transform var(--transition-normal);
}

.terra-sidebar__toggle-icon--open {
  transform: rotate(180deg);
}

/* Search Section */
.terra-sidebar__search {
  padding: 0 var(--spacing-lg) var(--spacing-lg);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.terra-sidebar__search-container {
  position: relative;
  display: flex;
  align-items: center;
}

.terra-sidebar__search-input {
  width: 100%;
  padding: var(--spacing-sm) var(--spacing-md);
  padding-right: 2.5rem;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: var(--radius-md);
  color: var(--color-white);
  font-size: var(--font-size-sm);
  transition: all var(--transition-normal);
}

.terra-sidebar__search-input::placeholder {
  color: rgba(255, 255, 255, 0.6);
}

.terra-sidebar__search-input:focus {
  outline: none;
  background: rgba(255, 255, 255, 0.15);
  border-color: var(--color-mint-light);
  box-shadow: 0 0 0 2px rgba(168, 230, 163, 0.3);
}

.terra-sidebar__search-icon {
  position: absolute;
  right: var(--spacing-sm);
  color: rgba(255, 255, 255, 0.6);
  font-size: var(--font-size-sm);
}

.terra-sidebar__search-clear {
  background: none;
  border: none;
  color: rgba(255, 255, 255, 0.6);
  cursor: pointer;
  padding: var(--spacing-xs);
  border-radius: var(--radius-sm);
  transition: all var(--transition-normal);
}

.terra-sidebar__search-clear:hover {
  color: var(--color-white);
  background: rgba(255, 255, 255, 0.1);
}

/* Navigation Section */
.terra-sidebar__nav {
  flex: 1;
  overflow-y: auto;
  padding: var(--spacing-md) 0;
}

.terra-sidebar__nav::-webkit-scrollbar {
  width: 4px;
}

.terra-sidebar__nav::-webkit-scrollbar-track {
  background: transparent;
}

.terra-sidebar__nav::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.3);
  border-radius: 2px;
}

.terra-sidebar__nav::-webkit-scrollbar-thumb:hover {
  background: rgba(255, 255, 255, 0.5);
}

.terra-sidebar__nav-content {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
}

.terra-sidebar__category {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
}

.terra-sidebar__category-title {
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  color: rgba(255, 255, 255, 0.7);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin: 0;
  padding: 0 var(--spacing-lg);
}

.terra-sidebar__category-items {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
}

.terra-sidebar__nav-item {
  display: flex;
  align-items: center;
  padding: 12px 16px;
  margin: 2px 12px;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.3s ease;
  position: relative;
  min-height: 48px;
}

.terra-sidebar__nav-item:hover {
  background: rgba(255, 255, 255, 0.1);
  transform: translateX(4px);
}

.terra-sidebar__nav-item:focus {
  outline: none;
  background: rgba(255, 255, 255, 0.15);
  box-shadow: 0 0 0 2px rgba(168, 230, 163, 0.3);
}

.terra-sidebar__nav-item--active {
  background: rgba(255, 255, 255, 0.2);
  transform: translateX(4px);
}

.terra-sidebar__nav-item--active::before {
  content: '';
  position: absolute;
  left: -12px;
  top: 0;
  bottom: 0;
  width: 4px;
  background: #4CAF50;
  border-radius: 0 2px 2px 0;
}

.terra-sidebar__nav-icon {
  font-size: 1.5rem;
  margin-right: var(--spacing-md);
  min-width: 28px;
  text-align: center;
  flex-shrink: 0;
}

.terra-sidebar__nav-content {
  flex: 1;
  min-width: 0;
  opacity: 1;
  transition: opacity var(--transition-normal);
}

.terra-sidebar--closed .terra-sidebar__nav-content {
  opacity: 0;
  pointer-events: none;
}

.terra-sidebar__nav-name {
  font-weight: var(--font-weight-semibold);
  font-size: var(--font-size-sm);
  display: block;
  margin-bottom: var(--spacing-xs);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.terra-sidebar__nav-desc {
  font-size: var(--font-size-xs);
  opacity: 0.8;
  color: #b8e6b3;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.terra-sidebar__nav-indicator {
  position: absolute;
  right: var(--spacing-md);
  width: 6px;
  height: 6px;
  background: var(--color-mint-light);
  border-radius: 50%;
  animation: pulse 2s infinite;
}

/* Footer Section */
.terra-sidebar__footer {
  padding: var(--spacing-lg);
  border-top: 1px solid rgba(255, 255, 255, 0.15);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.terra-sidebar__stats {
  display: flex;
  gap: var(--spacing-md);
}

.terra-sidebar__stat {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  flex: 1;
}

.terra-sidebar__stat-icon {
  font-size: 1.3rem;
  flex-shrink: 0;
}

.terra-sidebar__stat-content {
  min-width: 0;
}

.terra-sidebar__stat-value {
  font-weight: var(--font-weight-bold);
  font-size: var(--font-size-sm);
  white-space: nowrap;
}

.terra-sidebar__stat-label {
  font-size: var(--font-size-xs);
  opacity: 0.8;
  white-space: nowrap;
}

.terra-sidebar__version {
  text-align: center;
  font-size: var(--font-size-xs);
  opacity: 0.6;
  color: #b8e6b3;
}

/* Language Selector and Version (always visible) */
.terra-sidebar__bottom-section {
  padding: var(--spacing-lg);
  border-top: 1px solid rgba(255, 255, 255, 0.15);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
  margin-top: auto; /* Pushes it to the bottom */
}

.terra-sidebar--closed .terra-sidebar__bottom-section {
  padding: var(--spacing-md) var(--spacing-sm); /* Adjust padding for collapsed state */
  align-items: center; /* Center items when collapsed */
}

.terra-sidebar__language-selector-container {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
  width: 100%; /* Ensure it takes full width */
}

.terra-sidebar--closed .terra-sidebar__language-selector-container {
  flex-direction: column; /* Keep column layout for selector */
  align-items: center; /* Center content */
}

.terra-sidebar__language-label {
  font-size: var(--font-size-xs);
  opacity: 0.8;
  color: rgba(255, 255, 255, 0.7);
  text-align: center; /* Center label */
}

.terra-sidebar--closed .terra-sidebar__language-label {
  display: none; /* Hide label when collapsed to save space */
}

.terra-sidebar__language-select {
  width: 100%;
  padding: var(--spacing-xs) var(--spacing-sm);
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: var(--radius-md);
  color: white;
  font-size: var(--font-size-sm);
  cursor: pointer;
  appearance: none; /* Remove default select arrow */
  -webkit-appearance: none;
  -moz-appearance: none;
  background-image: url('data:image/svg+xml;charset=US-ASCII,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20width%3D%22292%22%20height%3D%22292%22%3E%3Cpath%20fill%3D%22white%22%20d%3D%22M287%2C197L146%2C56L5%2C197H287z%22%2F%3E%3C%2Fsvg%3E'); /* Custom arrow */
  background-repeat: no-repeat;
  background-position: right 8px top 50%;
  background-size: 12px auto;
}

.terra-sidebar--closed .terra-sidebar__language-select {
  width: 40px; /* Make it smaller when collapsed */
  height: 40px; /* Make it square */
  border-radius: 50%; /* Make it circular */
  padding: 0; /* Remove padding */
  text-align: center; /* Center content */
  background-position: center; /* Center arrow */
  font-size: 0; /* Hide text */
  overflow: hidden; /* Hide overflow */
  display: flex; /* Use flex for centering */
  justify-content: center; /* Center content */
  align-items: center; /* Center content */
}

.terra-sidebar--closed .terra-sidebar__language-select option {
  display: none; /* Hide options when collapsed */
}

.terra-sidebar--closed .terra-sidebar__language-select::before {
  content: "🌐"; /* Show globe icon when collapsed */
  font-size: 1.5rem; /* Size of the globe icon */
  color: white; /* Color of the globe icon */
  display: block; /* Make sure it's visible */
}

.terra-sidebar__language-select:focus {
  outline: none;
  border-color: var(--color-mint-light);
  box-shadow: 0 0 0 2px rgba(168, 230, 163, 0.3);
}

/* Tooltip for collapsed state */
.terra-sidebar__tooltip {
  position: fixed;
  left: 80px;
  background: var(--color-gray-800);
  color: var(--color-white);
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--radius-sm);
  font-size: var(--font-size-sm);
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-normal);
  z-index: var(--z-tooltip);
  box-shadow: var(--shadow-lg);
}

.terra-sidebar__tooltip-arrow {
  position: absolute;
  left: -4px;
  top: 50%;
  transform: translateY(-50%);
  width: 0;
  height: 0;
  border-top: 4px solid transparent;
  border-bottom: 4px solid transparent;
  border-right: 4px solid var(--color-gray-800);
}

/* Responsive Design */
@media (max-width: 1024px) {
  .terra-sidebar {
    transform: translateX(-100%);
    transition: transform var(--transition-bounce);
    border-radius: 0;
  }
  
  .terra-sidebar--open {
    transform: translateX(0);
    width: 280px;
  }
  
  .terra-sidebar--closed {
    transform: translateX(-100%);
  }
}

@media (max-width: 640px) {
  .terra-sidebar--open {
    width: 100vw;
  }
  
  .terra-sidebar__header {
    padding: var(--spacing-md);
  }
  
  .terra-sidebar__search {
    padding: 0 var(--spacing-md) var(--spacing-md);
  }
  
  .terra-sidebar__nav-item {
    padding: var(--spacing-md);
    margin: 0 var(--spacing-sm);
  }
  
  .terra-sidebar__footer {
    padding: var(--spacing-md);
  }
}

/* High Contrast Mode */
@media (prefers-contrast: high) {
  .terra-sidebar {
    background: var(--color-forest-deep);
    border-right: 2px solid var(--color-white);
  }
  
  .terra-sidebar__nav-item--active {
    background: rgba(255, 255, 255, 0.3);
    border: 1px solid var(--color-white);
  }
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
  .terra-sidebar,
  .terra-sidebar__toggle-icon,
  .terra-sidebar__nav-item,
  .terra-sidebar__logo-text,
  .terra-sidebar__nav-content {
    transition: none;
  }
  
  .terra-sidebar__logo-icon {
    animation: none;
  }
  
  .terra-sidebar__nav-indicator {
    animation: none;
  }
  
  .terra-sidebar__nav-item:hover {
    transform: none;
  }
}

/* Focus Management */
.terra-sidebar__nav-item:focus-visible {
  outline: 2px solid var(--color-mint-light);
  outline-offset: 2px;
}

/* Animation for nav items */
.terra-sidebar__nav-item {
  animation: slideInLeft 0.3s ease-out;
  animation-fill-mode: both;
}

.terra-sidebar__nav-item:nth-child(1) { animation-delay: 0.1s; }
.terra-sidebar__nav-item:nth-child(2) { animation-delay: 0.15s; }
.terra-sidebar__nav-item:nth-child(3) { animation-delay: 0.2s; }
.terra-sidebar__nav-item:nth-child(4) { animation-delay: 0.25s; }
.terra-sidebar__nav-item:nth-child(5) { animation-delay: 0.3s; }

@keyframes slideInLeft {
  from {
    opacity: 0;
    transform: translateX(-20px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}