/* Design rationale: docs/claude_context/header.md */
.header-bar {
  background: var(--color-bg-dark);
  padding: 2px 2rem 1rem;
  display: flex;
  align-items: center;
  gap: 2rem;
  width: 100%;
  box-sizing: border-box;
}

.ifiplatform-logo-box {
  flex: 1 1 0;
  margin-left: 20px;
  padding: 20px 0;
  display: flex;
  flex-direction: column;
}

.ifiplatform-logo-box h1 {
  margin: 0;
  white-space: nowrap;
  font-size: 30px;
  line-height: 1;
}

.ifiplatform-logo {
  display: inline-block;
  text-decoration: none;
  color: var(--color-accent);
  transition: color 0.15s ease, transform 0.05s ease;
}

.ifiplatform-logo:hover {
  color: var(--color-accent-hover);
  transform: translateY(-1px);
}

.header-message {
  contain: inline-size;
  max-width: 35rem;
  margin-left: 40px;
  font-size: 16px;
  color: var(--color-accent-hover);
  animation: header-message-pulse 2.5s ease-in-out infinite;
}

@keyframes header-message-pulse {
  0%,
  100% {
    filter: saturate(80%);
  }
  50% {
    filter: saturate(200%);
  }
}

@media (prefers-reduced-motion: reduce) {
  .header-message {
    animation: none;
  }
}

.header-message p {
  margin: 0;
}

.header-message b,
.header-message strong {
  color: var(--color-accent);
}

.header-message a {
  display: inline-block;
  text-decoration: none;
  color: var(--color-accent);
  transition: color 0.15s ease, transform 0.05s ease;
}

.header-message a:hover {
  color: var(--color-accent-hover);
  transform: translateY(-1px);
}

.nav_links {
  flex: 1 1 auto;
  max-width: 40rem;
  margin-left: auto;
  padding-block: 0.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.nav_link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  color: var(--color-secondary);
  text-decoration: none;
  font-size: 18px;
  white-space: nowrap;
  transition:
    background-color 0.15s ease,
    transform 0.05s ease;
}

.nav_link.active {
  font-size: 25px;
  font-weight: bold;
  color: var(--color-cta);
}

.nav_link:hover {
  font-weight: bold;
  text-decoration: underline;
  transform: translateY(-1px);
}

.nav_link-icon {
  display: none;
}

.nav_link-icon svg {
  display: block;
  width: 1.9rem;
  height: 1.9rem;
}

.nav_link-icon--page svg {
  width: 1.6rem;
  height: 1.6rem;
}

@media (max-width: 45rem) {
  .header-bar {
    flex-wrap: wrap;
    padding: 12px 0.75rem 0.35rem;
    gap: 2px 0.75rem;
    justify-content: center;
    text-align: center;
  }

  .ifiplatform-logo-box {
    margin: 0;
    padding: 0.75rem 0;
    align-items: center;
  }

  .ifiplatform-logo-box h1 {
    font-size: 24px;
  }

  .header-message {
    contain: none;
    margin-left: 0;
    font-size: 11px;
  }

  .header-message p {
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 2;
    line-clamp: 2;
    overflow: hidden;
  }

  .nav_links {
    flex-basis: 100%;
    max-width: none;
    margin: 0.15rem 0 0;
    justify-content: center;
    gap: 3.5rem;
  }

  .nav_link {
    font-size: 17px;
  }

  .nav_link.active {
    font-size: 16px;
  }

  .nav_link-icon {
    display: inline-flex;
  }

  .nav_link-label {
    display: none;
  }
}