phd-advisor-frontend/src/styles/EnhancedChatInput.css

/* Enhanced Chat Input Styles */
.enhanced-chat-input-container {
  position: relative;
  width: 100%;
  max-width: 800px;
  margin: 0 auto;
  padding: 0 16px;
}

/* Reply Banner */
.reply-banner {
  background: var(--bg-secondary);
  border: 1px solid var(--border-primary);
  border-radius: 12px 12px 0 0;
  padding: 12px 16px;
  margin: 0 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 14px;
  color: var(--text-secondary);
}

.reply-content {
  display: flex;
  align-items: center;
  gap: 8px;
}

.cancel-reply {
  background: none;
  border: none;
  color: var(--text-tertiary);
  cursor: pointer;
  padding: 4px;
  border-radius: 6px;
  transition: all 0.2s ease;
}

.cancel-reply:hover {
  background: var(--bg-secondary);
  color: var(--text-secondary);
}

/* Floating Upload Section */
.floating-upload-section {
  background: var(--bg-primary);
  border: 1px solid var(--border-primary);
  border-radius: 16px;
  margin-bottom: 12px;
  padding: 20px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
  animation: slideUpFade 0.2s ease-out;
}

[data-theme="dark"] .floating-upload-section {
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

/* Floating Documents Section */
.floating-documents-section {
  background: var(--bg-primary);
  border: 1px solid var(--border-primary);
  border-radius: 16px;
  margin-bottom: 12px;
  max-height: 400px;
  overflow: hidden;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
  animation: slideUpFade 0.2s ease-out;
}

[data-theme="dark"] .floating-documents-section {
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

.documents-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border-primary);
  background: var(--bg-secondary);
}

.documents-title {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 500;
  color: var(--text-primary);
  font-size: 14px;
}

.close-documents-btn {
  background: none;
  border: none;
  color: var(--text-tertiary);
  cursor: pointer;
  padding: 6px;
  border-radius: 6px;
  transition: all 0.2s ease;
}

.close-documents-btn:hover {
  background: var(--bg-tertiary);
  color: var(--text-secondary);
}

.documents-list {
  max-height: 300px;
  overflow-y: auto;
  padding: 8px;
}

.no-documents {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 40px 20px;
  text-align: center;
  color: var(--text-tertiary);
}

.no-documents svg {
  margin-bottom: 12px;
  opacity: 0.5;
}

.no-documents p {
  margin: 8px 0;
  font-weight: 500;
  color: var(--text-primary);
}

.no-documents span {
  font-size: 13px;
  color: var(--text-tertiary);
}

.document-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px;
  border-radius: 8px;
  transition: background-color 0.2s ease;
}

.document-item:hover {
  background: var(--bg-secondary);
}

.document-icon {
  font-size: 20px;
  flex-shrink: 0;
}

.document-info {
  flex: 1;
  min-width: 0;
}

.document-name {
  font-weight: 500;
  color: var(--text-primary);
  font-size: 14px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.document-details {
  font-size: 12px;
  color: var(--text-secondary);
  margin-top: 2px;
}

.document-actions {
  display: flex;
  gap: 4px;
}

.document-action-btn {
  background: none;
  border: none;
  color: var(--text-tertiary);
  cursor: pointer;
  padding: 6px;
  border-radius: 4px;
  transition: all 0.2s ease;
}

.document-action-btn:hover {
  background: var(--bg-tertiary);
  color: var(--text-secondary);
}

.document-action-btn:hover:has(svg[data-icon="trash-2"]) {
  background: #FEF2F2;
  color: #DC2626;
}

[data-theme="dark"] .document-action-btn:hover:has(svg[data-icon="trash-2"]) {
  background: #7F1D1D;
  color: #FCA5A5;
}

/* Main Input Box */
.floating-input-box {
  background: var(--bg-primary);
  border: 1px solid var(--border-primary);
  border-radius: 16px;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.12);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  overflow: hidden;
  transition: all 0.2s ease;
}

[data-theme="dark"] .floating-input-box {
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
}

.floating-input-box:focus-within {
  border-color: var(--accent-primary);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.16), 0 0 0 1px var(--accent-primary);
}

[data-theme="dark"] .floating-input-box:focus-within {
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.5), 0 0 0 1px var(--accent-primary);
}

/* Text Input Row */
.text-input-row {
  padding: 16px 20px 4px 20px;
}

.main-textarea {
  width: 100%;
  min-height: 24px;
  max-height: 200px;
  border: none;
  outline: none;
  resize: none;
  background: transparent;
  color: var(--text-primary);
  font-size: 16px;
  font-family: inherit;
  line-height: 1.5;
  overflow-y: auto;
}

.main-textarea::placeholder {
  color: var(--text-tertiary);
}

/* Controls Row */
.controls-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 20px 16px 20px;
}

/* File Controls - ensure buttons stay side by side */
.file-controls {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: nowrap;
}

/* Add Documents Button */
.add-docs-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-secondary);
  border-radius: 8px;
  padding: 8px 12px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 0.2s ease;
}

.add-docs-btn:hover:not(:disabled) {
  background: var(--bg-tertiary);
  border-color: var(--border-primary);
  color: var(--text-primary);
}

.add-docs-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.add-docs-btn.active {
  background: var(--accent-primary);
  border-color: var(--accent-primary);
  color: white;
}

/* View Documents Button */
.view-docs-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-secondary);
  border-radius: 8px;
  padding: 8px 10px;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 0.2s ease;
  position: relative;
}

.view-docs-btn:hover {
  background: var(--bg-tertiary);
  border-color: var(--border-primary);
  color: var(--text-primary);
}

.view-docs-btn.active {
  background: var(--accent-primary);
  border-color: var(--accent-primary);
  color: white;
}

.docs-count {
  background: var(--accent-primary);
  color: white;
  border-radius: 10px;
  padding: 2px 6px;
  font-size: 10px;
  font-weight: 700;
  min-width: 16px;
  text-align: center;
  line-height: 1.2;
}

.view-docs-btn:hover .docs-count,
.view-docs-btn.active .docs-count {
  background: white;
  color: var(--accent-primary);
}

/* Send Button - FIXED VERSION */
.send-button {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 8px;
  border: none;
  cursor: pointer;
  transition: all 0.2s ease;
  position: relative;
  flex-shrink: 0;
}

/* Enabled state - clean approach */
.send-button.enabled {
  background: #3B82F6;
  color: #FFFFFF;
  box-shadow: 0 2px 8px rgba(59, 130, 246, 0.3);
}

/* Icon styling - use currentColor for better inheritance */
.send-button svg {
  width: 16px;
  height: 16px;
  color: currentColor;
}

.send-button.enabled:hover {
  background: #2563EB;
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.4);
}

.send-button.enabled:active {
  transform: translateY(0);
  box-shadow: 0 2px 8px rgba(59, 130, 246, 0.3);
}

/* Disabled state */
.send-button.disabled {
  background: #E5E7EB;
  color: #9CA3AF;
  cursor: not-allowed;
  box-shadow: none;
}

[data-theme="dark"] .send-button.disabled {
  background: #374151;
  color: #6B7280;
}

/* Document Upload Notifications */
.document-upload-notification {
  display: flex;
  justify-content: center;
  margin: 16px 0;
  animation: slideUpFade 0.3s ease-out;
  background: transparent;
  box-shadow: none;
  border: none;
  padding: 0;
}

/* [data-theme="dark"] .document-upload-notification {
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
} */

.upload-notification-content {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 16px;
  background: var(--feature-bg);  /* Change from fixed color */
  border: 1px solid var(--accent-primary);  /* Change from fixed color */
  border-radius: 12px;
  color: var(--accent-primary);  /* Change from fixed color */
  font-size: 14px;
  font-weight: 500;
  max-width: 80%;
}

.upload-notification-icon {
  flex-shrink: 0;
}

.upload-notification-icon.success {
  color: #10B981;
}

.upload-notification-icon.error {
  color: #EF4444;
}

.upload-notification-text {
  flex: 1;
}

.upload-notification-title {
  font-weight: 500;
  color: var(--text-primary);
  margin: 0 0 2px 0;
  font-size: 14px;
}

.upload-notification-message {
  color: var(--text-secondary);
  margin: 0;
  font-size: 13px;
}

/* [data-theme="dark"] .upload-notification-content {
  box-shadow: 0 4px 16px rgba(99, 102, 241, 0.25);
} */

.notification-close-btn {
  background: none;
  border: none;
  color: var(--text-tertiary);
  cursor: pointer;
  padding: 4px;
  border-radius: 6px;
  transition: all 0.2s ease;
}

.notification-close-btn:hover {
  background: var(--bg-secondary);
  color: var(--text-secondary);
}

/* Animations */
@keyframes slideUpFade {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Mobile Responsive */
@media (max-width: 768px) {
  .enhanced-chat-input-container {
    padding: 0 12px;
  }
  
  .text-input-row {
    padding: 14px 16px 4px 16px;
  }
  
  .controls-row {
    padding: 8px 16px 14px 16px;
  }
  
  .main-textarea {
    font-size: 16px; /* Prevents zoom on iOS */
  }
  
  .add-docs-btn {
    padding: 6px 10px;
    font-size: 13px;
  }
  
  .add-docs-btn span {
    display: none; /* Hide text on mobile, show only icon */
  }
  
  .view-docs-btn {
    padding: 6px 8px;
  }
  
  .send-button {
    width: 32px;
    height: 32px;
  }
  
  .floating-upload-section,
  .floating-documents-section {
    padding: 16px;
  }
  
  .documents-header {
    padding: 12px 16px;
  }
  
  .documents-list {
    max-height: 250px;
  }
  
  .upload-notification-content {
    max-width: 95%;
    padding: 10px 14px;
    font-size: 13px;
  }
  
  .reply-banner {
    margin: 0 12px 12px 12px;
  }
}

/* Focus and accessibility */
.add-docs-btn:focus-visible,
.view-docs-btn:focus-visible,
.send-button:focus-visible {
  outline: 2px solid var(--accent-primary);
  outline-offset: 2px;
}

.main-textarea:focus {
  outline: none; /* Handled by parent container */
}

/* Loading states */
.floating-input-box.loading {
  opacity: 0.7;
  pointer-events: none;
}

.main-textarea.loading {
  cursor: wait;
}

/* High contrast mode support */
@media (prefers-contrast: high) {
  .floating-input-box {
    border-width: 2px;
  }
  
  .send-button.enabled {
    border: 2px solid #3B82F6;
  }
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
  .floating-input-box,
  .add-docs-btn,
  .view-docs-btn,
  .send-button,
  .floating-upload-section,
  .floating-documents-section {
    transition: none;
  }
  
  .slideUpFade {
    animation: none;
  }
}