/* Header-specific styles for IoE.Systems / Unwind Space Hub */

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
}

.header-brand {
  display: flex;
  align-items: center;
}

.brand-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  color: var(--color-gray-50);
}

.brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.4rem;
  height: 2.4rem;
  border-radius: var(--radius-full);
  background: radial-gradient(circle at 30% 0, #fed7aa 0, #f97316 40%, #7c2d12 100%);
  color: #05060a;
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 700;
  box-shadow: 0 0 18px rgba(249, 115, 22, 0.7);
}

.brand-text {
  display: flex;
  flex-direction: column;
}

.brand-title {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 600;
  letter-spacing: 0.02em;
}

.brand-subtitle {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.14em;
}

.primary-nav {
  display: flex;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.nav-link {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.12em;
}

.nav-link-cta {
  padding: 0.4rem 0.9rem;
  border-radius: var(--radius-full);
  background: radial-gradient(circle at top left, #ffb347 0, #f97316 45%, #c2410c 100%);
  color: #05060a;
  font-weight: 600;
  box-shadow: 0 0 18px rgba(249, 115, 22, 0.55);
}

.nav-link-cta:hover {
  color: #05060a;
}

/* Mobile navigation toggle */

.nav-toggle {
  display: none;
  position: relative;
  width: 2.5rem;
  height: 2.5rem;
  border-radius: var(--radius-full);
  border: 1px solid rgba(148, 163, 184, 0.5);
  background: rgba(15, 23, 42, 0.85);
  cursor: pointer;
  align-items: center;
  justify-content: center;
}

.nav-toggle-bar {
  position: absolute;
  width: 1.4rem;
  height: 2px;
  border-radius: 999px;
  background: var(--color-gray-50);
  transition: transform var(--transition), opacity var(--transition), top var(--transition);
}

.nav-toggle-bar:nth-child(1) {
  top: 0.85rem;
}

.nav-toggle-bar:nth-child(2) {
  top: 1.2rem;
}

.nav-toggle-bar:nth-child(3) {
  top: 1.55rem;
}

.nav-toggle.is-active .nav-toggle-bar:nth-child(1) {
  top: 1.2rem;
  transform: rotate(45deg);
}

.nav-toggle.is-active .nav-toggle-bar:nth-child(2) {
  opacity: 0;
}

.nav-toggle.is-active .nav-toggle-bar:nth-child(3) {
  top: 1.2rem;
  transform: rotate(-45deg);
}

/* Responsive layout */

@media (max-width: 768px) {
  .nav-toggle {
    display: inline-flex;
  }
ul.nav-links {
    margin-left: 20px !important;
}
  .primary-nav {
    position: fixed;
    inset: 3.5rem 0 auto 0;
    background: radial-gradient(circle at top, rgba(15, 23, 42, 0.96), rgba(3, 7, 18, 0.98));
    border-bottom: 1px solid rgba(148, 163, 184, 0.35);
    transform: translateY(-120%);
    opacity: 0;
    pointer-events: none;
    transition: transform var(--transition), opacity var(--transition);
  }

  .primary-nav.is-open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }

  .nav-links {
    flex-direction: column;
    align-items: flex-start;
    padding: var(--space-4) var(--container-padding-x) var(--space-5);
  }

  .nav-link,
  .nav-link-cta {
    width: 100%;
  }

  .nav-link-cta {
    text-align: center;
  }
}

@media (max-width: 480px) {
  .brand-subtitle {
    display: none;
  }
}