body { font-family: sans-serif; background: #f7f7f7; margin: 0; }
#userinfo {
  max-width: 400px;
  margin: 40px auto 0 auto;
  background: #fff;
  border-radius: 8px;
  box-shadow: 0 2px 8px #0001;
  padding: 16px;
  text-align: center;
  display: none;
}
#userinfo img {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  box-shadow: 0 1px 4px #0002;
  margin-bottom: 8px;
}
#userinfo table {
  margin: 10px auto;
  border-collapse: collapse;
  font-size: 0.95em;
}
#userinfo td {
  border: 1px solid #ccc;
  padding: 2px 8px;
}
#userinfo td:first-child {
  background: #f9f9f9;
  font-weight: bold;
}
#login-btn, #logout-btn { margin: 20px auto; display: block; padding: 10px 24px; border: none; border-radius: 4px; cursor: pointer; font-size: 1em; }
#login-btn { background: #1976d2; color: #fff; }
#logout-btn { background: #aaa; color: #333; }
/* Zakładki */
#tabs {
  max-width:900px;
  margin:20px auto 0 auto;
  display:flex;
  gap:8px;
}
.tab-btn {
  padding: 8px 16px;
  border: none;
  background: #ddd;
  color: #333;
  border-radius: 4px 4px 0 0;
  cursor: pointer;
  font-size: 1em;
}
.tab-btn.active {
  background: #1976d2;
  color: #fff;
}
.tab-section {
  display: none;
}
.tab-section.active {
  display: block;
}
/* Chat */
#chat-container {
  max-width: 400px;
  margin: 20px auto 20px auto;
  background: #fff;
  border-radius: 8px;
  box-shadow: 0 2px 8px #0001;
  padding: 16px;
  display: none;
}
#messages { min-height: 200px; max-height: 300px; overflow-y: auto; margin-bottom: 12px; }
.msg { margin: 6px 0; white-space: pre-wrap; word-break: break-word; }
.msg.user { text-align: right; color: #1976d2; }
.msg.bot { text-align: left; color: #333; }
#input-row { display: flex; gap: 8px; }
#message-input { flex: 1; padding: 8px; border-radius: 4px; border: 1px solid #ddd; }
#send-btn { padding: 8px 16px; border: none; background: #1976d2; color: #fff; border-radius: 4px; cursor: pointer; }
#send-btn:disabled { background: #aaa; }
/* CSV */
#csv-section {
  max-width: 900px;
  margin: 30px auto 40px auto;
  background: #fff;
  border-radius: 8px;
  box-shadow: 0 2px 8px #0001;
  padding: 16px;
}
#csv-table {
  width: 100%;
  border-collapse: collapse;
  margin: 0 auto;
  font-size: 0.98em;
}
#csv-table th, #csv-table td {
  border: 1px solid #ccc;
  padding: 4px 10px;
  text-align: left;
}
#csv-table th {
  background: #f0f0f0;
}
#csv-table-container {
  overflow-x: auto;
}
#csv-refresh-info {
  text-align: right;
  font-size: 0.9em;
  color: #888;
  margin-bottom: 8px;
}
.delete-btn {
  background: #e53935;
  color: #fff;
  border: none;
  border-radius: 4px;
  padding: 4px 10px;
  cursor: pointer;
}
.delete-btn:disabled {
  background: #ccc;
  cursor: not-allowed;
}