:root {
  --primary-color: #1f93ff;
  --secondary-color: #f5f7f9;
  --text-color: #3c4858;
  --border-color: #e6e8eb;
  --success-color: #44ce4b;
  --warning-color: #ffc532;
  --danger-color: #ff5c5c;
  --gray-light: #f0f2f5;
}

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

body {
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  color: var(--text-color);
  background-color: var(--secondary-color);
  line-height: 1.6;
}

header {
  background-color: white;
  padding: 1rem 2rem;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
}

h1 {
  color: var(--primary-color);
  margin-bottom: 0.5rem;
}

.header-controls {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  align-items: center;
}

.input-group {
  position: relative;
  display: flex;
  align-items: center;
}

.input-group input[type="text"],
.input-group input[type="password"] {
  padding: 8px 40px 8px 12px;
  border: 1px solid var(--border-color);
  border-radius: 4px;
  font-size: 14px;
  min-width: 200px;
}

.toggle-password {
  position: absolute;
  right: 8px;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--text-color);
  padding: 4px;
  border-radius: 2px;
  transition: color 0.3s ease;
}

.toggle-password:hover {
  color: var(--primary-color);
}

.toggle-password i {
  font-size: 14px;
}

input[type="text"] {
  padding: 8px 12px;
  border: 1px solid var(--border-color);
  border-radius: 4px;
  font-size: 14px;
}

.btn {
  padding: 8px 16px;
  border: none;
  border-radius: 4px;
  font-size: 14px;
  cursor: pointer;
  transition: background-color 0.3s ease;
}

.btn.primary {
  background-color: var(--primary-color);
  color: white;
}

.btn.primary:hover {
  background-color: #0d73cc;
}

.btn.secondary {
  background-color: var(--secondary-color);
  color: var(--text-color);
  border: 1px solid var(--border-color);
}

.btn.secondary:hover {
  background-color: var(--gray-light);
}

main {
  padding: 2rem;
}

.kanban-container {
  display: flex;
  gap: 1.5rem;
  overflow-x: auto;
  padding-bottom: 1rem;
}

.kanban-column {
  background-color: white;
  border-radius: 8px;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
  min-width: 300px;
  width: 300px;
  display: flex;
  flex-direction: column;
}

.kanban-column h2 {
  padding: 1rem;
  font-size: 1rem;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.counter {
  background-color: var(--gray-light);
  border-radius: 12px;
  padding: 2px 8px;
  font-size: 0.8rem;
  font-weight: normal;
}

.kanban-items {
  padding: 1rem;
  flex-grow: 1;
  min-height: 200px;
  overflow-y: auto;
  max-height: calc(100vh - 200px);
}

.kanban-item {
  background-color: var(--secondary-color);
  border-radius: 6px;
  padding: 1rem;
  margin-bottom: 0.8rem;
  /* cursor: grab; */
  cursor: pointer;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
  transition: all 0.2s;
}

.kanban-item:hover {
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

.kanban-item h3 {
  font-size: 0.9rem;
  margin-bottom: 0.5rem;
}

.kanban-item p {
  font-size: 0.8rem;
  color: #666;
  margin-bottom: 0.5rem;
}

.kanban-item .meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.75rem;
  color: #888;
}

.kanban-item .priority {
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 0.7rem;
  font-weight: 600;
}

.priority.high {
  background-color: var(--danger-color);
  color: white;
}

.priority.medium {
  background-color: var(--warning-color);
  color: white;
}

.priority.low {
  background-color: var(--success-color);
  color: white;
}

.modal {
  display: none;
  position: fixed;
  z-index: 1000;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.5);
}

.modal-content {
  background-color: white;
  margin: 10% auto;
  padding: 20px;
  border-radius: 8px;
  width: 80%;
  max-width: 700px;
  max-height: 80vh;
  overflow-y: auto;
}

.close {
  color: #aaa;
  float: right;
  font-size: 28px;
  font-weight: bold;
  cursor: pointer;
}

.close:hover {
  color: black;
}

#conversation-details {
  margin-top: 1rem;
}

.message {
  padding: 10px;
  margin-bottom: 10px;
  border-radius: 6px;
}

.message.incoming {
  background-color: var(--gray-light);
  margin-right: 20%;
}

.message.outgoing {
  background-color: var(--primary-color);
  color: white;
  margin-left: 20%;
}

.message.bot {
  background-color: var(--warning-color);
  color: var(--text-color);
  margin-left: 10%;
  margin-right: 10%;
}

.message .sender {
  font-weight: bold;
  margin-bottom: 5px;
}

.message .time {
  font-size: 0.7rem;
  color: #888;
  text-align: right;
}

.sortable-ghost {
  opacity: 0.4;
}

.loading {
  text-align: center;
  padding: 20px;
  color: var(--text-color);
  font-style: italic;
}

.client-info {
  background-color: var(--gray-light);
  padding: 15px;
  border-radius: 6px;
  margin-bottom: 15px;
}

.messages-container {
  max-height: 400px;
  overflow-y: auto;
}

/* Loading Overlay */
.loading-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.7);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 9999;
}

.loading-hidden {
  display: none;
}

.loading-spinner {
  text-align: center;
  color: white;
}

.spinner {
  width: 50px;
  height: 50px;
  border: 4px solid rgba(255, 255, 255, 0.3);
  border-top: 4px solid var(--primary-color);
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin: 0 auto 20px;
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

.loading-spinner p {
  font-size: 16px;
  font-weight: 500;
  margin: 0;
}

@media (max-width: 768px) {
  header {
    flex-direction: column;
    align-items: flex-start;
  }

  .header-controls {
    margin-top: 1rem;
    width: 100%;
  }

  .kanban-container {
    flex-direction: column;
  }

  .kanban-column {
    width: 100%;
  }
}