.header {
  position: sticky;
  top: 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid var(--border);
  padding: var(--space-md) var(--space-lg);
  background: var(--bg-header);
  backdrop-filter: blur(5px);
  z-index: 10;
}

.header-title {
  display: flex;
  justify-content: center;
  align-items: center;
}

.logo-icon {
  width: var(--icon-xl);
  height: var(--icon-xl);
  color: rgb(var(--gradient-start-rgb));
  margin-right: var(--space-xs);
}

.logo-text {
  font-size: var(--font-xl);
  font-weight: 700;
  line-height: var(--lh-tight);
  letter-spacing: -0.01em;
}

.settings-button {
  background-color: transparent;
}

.settings-button svg {
  color: rgb(var(--gradient-start-rgb));
  width: var(--icon-xl);
  height: var(--icon-xl);
  transition: color 0.3s ease;
}

.settings-button:active svg {
  color: var(--text-secondary);
}