/* Block: header */

.header {
  position: sticky;
  top: 0;
  z-index: var(--z-header);
  background: var(--color-bg);
  border-bottom: 0.5px solid var(--color-border-tertiary);
}

.header__container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 14px var(--container-padding);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-7);
  min-height: var(--header-height);
}

.header__logo {
  font-family: var(--font-serif);
  font-size: 22px;
  font-weight: 500;
  letter-spacing: -0.5px;
  color: var(--color-text-primary);
  transition: opacity var(--duration-fast) var(--ease-out);
}

.header__logo:hover {
  opacity: 0.72;
}

.header__nav {
  display: flex;
  gap: var(--space-7);
}

.header__nav-link {
  font-size: 14px;
  color: var(--color-text-secondary);
  transition: color var(--duration-fast) var(--ease-out);
}

.header__nav-link:hover {
  color: var(--color-text-primary);
}

/* Tablet & mobile — hide nav, leave logo + CTA.
   Burger menu can be added later when blocks 02+ are wired up. */
@media (max-width: 768px) {
  .header__nav {
    display: none;
  }
  .header__container {
    padding: 12px var(--container-padding);
  }
}

/* Actions group — login link + invest button */
.header__actions {
  display: flex;
  align-items: center;
  gap: var(--space-5);
}

.header__login {
  font-size: 14px;
  color: var(--color-text-primary);
  font-weight: 500;
  transition: color var(--duration-fast) var(--ease-out);
}

.header__login:hover {
  color: var(--color-accent);
}

@media (max-width: 768px) {
  .header__actions {
    gap: var(--space-3);
  }
}