#mail-container {
  max-height: 500px;
  overflow-y: auto;
  border-right: 1px solid #ddd;
  background: #fff;
  padding: 0;
}

.mail-card {
  padding: 12px 20px;
  border-bottom: 1px solid #eee;
  cursor: pointer;
  font-weight: 500;
  transition: background-color 0.15s ease;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.mail-card:hover {
  background-color: #fbfbfb; /* light green highlight */
}

.mail-card.active {
  border-left: 4px solid #1c5a8b; /* deep green border */
  font-weight: 600;
}

.mail-card .title {
  flex-grow: 1;
}

.mail-card .meta {
  font-size: 0.8rem;
  color: #5f6368;
  margin-left: 12px;
  white-space: nowrap;
}

#message-content {
  max-height: 500px; /* match mail-container */
  overflow-y: auto;
  background-color: #fff;
  padding: 20px 30px;
  font-family: 'Roboto', Arial, sans-serif;
  color: #000000;
  border-left: 1px solid #ddd;
  box-sizing: border-box;
}

#message-content h5 {
  font-weight: 600;
  font-size: 1.5rem;
  margin-bottom: 0.5rem;
  color: #000000;
}

#message-content p {
  white-space: pre-wrap;
  line-height: 1.5;
  color: #333;
}

/* Markdown styles for basics */
#message-content strong {
  font-weight: 700;
}

#message-content em {
  font-style: italic;
}

#message-content code {
  background-color: #e8f5e9;
  padding: 2px 5px;
  border-radius: 3px;
  font-family: monospace;
  font-size: 0.95em;
}

#message-content pre {
  background-color: #e8f5e9;
  padding: 10px;
  border-radius: 5px;
  overflow-x: auto;
  font-family: monospace;
  font-size: 0.9em;
  margin: 10px 0;
}

#message-content a {
  color: #1c5a8b;
  text-decoration: underline;
}

#message-content ul, #message-content ol {
  padding-left: 20px;
  margin: 10px 0;
}