.container {
  display: flex;
  flex-direction: column;
  width: 100%;
  height: 100%;
  background-color: #f5f5f5;
  overflow: hidden;
}

.mainContent {
  display: flex;
  flex: 1;
  min-height: 0;
  min-width: 0;
  width: 100%;
  overflow: hidden;
}

/* Mobile responsiveness */
@media (max-width: 768px) {
  .mainContent {
    flex-direction: column;
  }
}

/* Signed-out landing screen */
.signIn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 100%;
  background-color: #f5f5f5;
  padding: 24px;
}

.signInCard {
  background: white;
  border-radius: 12px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
  padding: 40px 32px;
  max-width: 420px;
  width: 100%;
  text-align: center;
}

.signInTitle {
  margin: 0 0 8px;
  font-size: 28px;
  font-weight: 700;
  color: #2d3748;
}

.signInSubtitle {
  margin: 0 0 28px;
  font-size: 15px;
  color: #718096;
  line-height: 1.5;
}

.signInButton {
  background-color: #4a5568;
  color: white;
  border: none;
  border-radius: 8px;
  padding: 12px 24px;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.2s;
  width: 100%;
}

.signInButton:hover {
  background-color: #2d3748;
}

.signInButton:active {
  background-color: #1a202c;
}