/* Top Bar */
.top-bar {
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  padding: 0 var(--spacing-2xl);
  height: var(--topbar-height);
  display: flex;
  align-items: center;
  flex-shrink: 0;
  overflow: hidden;
}

.top-bar-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
  max-width: 100%;
}

.page-title {
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-normal);
  color: var(--color-text);
}

.top-bar-actions {
  display: flex;
  gap: var(--spacing-md);
}

/* Action Buttons */
.signup-btn,
.modeling-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) var(--spacing-lg);
  border-radius: var(--radius-sm);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  transition: all var(--transition-base);
  text-decoration: none;
  cursor: pointer;
}

.signup-btn {
  background: #1a73e8;
  color: white;
  border: none;
  padding: 8px 16px;
  border-radius: 6px;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  cursor: pointer;
  transition: background-color var(--transition-base);
  text-decoration: none;
  margin-right: var(--spacing-md);
}

.signup-btn:hover {
  background: #3367d6;
}

.modeling-btn {
  background: var(--color-primary);
  color: var(--color-surface);
  border: none;
}

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

/* User Info */
.user-info {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.user-email {
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
}