.header {
  background: var(--card-bg);
  border-bottom: 0.5px solid var(--border-color);
  padding: 12px 0;
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(4px);
  background-color: color-mix(in srgb, var(--card-bg) 90%, transparent);
}

.header-content {
  max-width: 900px;
  margin: 0 auto;
  padding: 0 16px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-size: 1.5rem;
  font-weight: 600;
  letter-spacing: -0.5px;
}

.logo-accent {
  color: var(--primary-accent);
}

.date-pill {
  background: var(--bg-secondary);
  padding: 6px 14px;
  border-radius: 20px;
  font-size: 0.8125rem;
  color: var(--text-muted);
  white-space: nowrap;
}