/* Header styles for FEC VENTURES LTD */

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background-color: var(--color-surface);
  box-shadow: var(--shadow-xs);
}

.site-header__inner {
  padding-top: var(--space-3);
  padding-bottom: var(--space-3);
  gap: var(--space-4);
}

.site-header__brand {
  display: flex;
  align-items: center;
}

.site-header__logo-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  color: var(--color-text);
}

.site-header__logo-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 0.9rem;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-strong));
  color: #ffffff;
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: 0.04em;
}

.site-header__text-group {
  display: flex;
  flex-direction: column;
}

.site-header__name {
  font-weight: 600;
  font-size: 0.98rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.site-header__tagline {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
}

/* Navigation */

.site-header__nav {
  display: flex;
  align-items: center;
}

.site-header__nav-list {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.site-header__nav-link {
  position: relative;
  display: inline-flex;
  align-items: center;
  padding: 0.25rem 0;
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--color-text-muted);
}

.site-header__nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -0.2rem;
  width: 0;
  height: 2px;
  border-radius: 999px;
  background-color: var(--color-primary);
  transition: width var(--transition-normal);
}

.site-header__nav-link:hover,
.site-header__nav-link:focus-visible {
  color: var(--color-text);
}

.site-header__nav-link:hover::after,
.site-header__nav-link:focus-visible::after {
  width: 100%;
}

.site-header__nav-item--primary .site-header__nav-link--cta {
  padding-inline: 1rem;
  padding-block: 0.45rem;
  border-radius: var(--radius-pill);
  background-color: var(--color-primary);
  color: #ffffff;
  box-shadow: var(--shadow-sm);
  text-transform: uppercase;
  font-size: var(--font-size-xs);
  letter-spacing: 0.08em;
}

.site-header__nav-item--primary .site-header__nav-link--cta::after {
  display: none;
}

.site-header__nav-item--primary .site-header__nav-link--cta:hover,
.site-header__nav-item--primary .site-header__nav-link--cta:focus-visible {
  background-color: var(--color-primary-strong);
}

/* Mobile toggle */

.site-header__toggle {
  display: none;
  position: relative;
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 999px;
  border: 1px solid var(--color-border-subtle);
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.site-header__toggle-bar {
  position: absolute;
  width: 1.3rem;
  height: 2px;
  border-radius: 999px;
  background-color: var(--color-text);
  transition: transform var(--transition-normal), opacity var(--transition-normal), top var(--transition-normal), bottom var(--transition-normal);
}

.site-header__toggle-bar:nth-child(1) {
  top: 0.8rem;
}

.site-header__toggle-bar:nth-child(2) {
  top: 1.2rem;
}

.site-header__toggle-bar:nth-child(3) {
  bottom: 0.8rem;
}

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

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

.site-header__toggle.is-active .site-header__toggle-bar:nth-child(3) {
  bottom: 1.2rem;
  transform: rotate(-45deg);
}

/* Responsive layout */

@media (max-width: 767px) {
  .site-header__inner {
    padding-top: var(--space-2);
    padding-bottom: var(--space-2);
  }

  .site-header__toggle {
    display: inline-flex;
  }

  .site-header__nav {
    position: absolute;
    inset-inline: 0;
    top: 100%;
    background-color: var(--color-surface);
    box-shadow: 0 14px 30px rgba(15, 23, 42, 0.16);
    transform-origin: top;
    transform: scaleY(0.9);
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition-normal), transform var(--transition-normal), visibility var(--transition-normal);
  }

  .site-header__nav-list {
    flex-direction: column;
    align-items: flex-start;
    padding: var(--space-4);
    gap: var(--space-3);
  }

  .site-header__nav-link {
    font-size: var(--font-size-md);
  }

  .site-header__nav-item--primary .site-header__nav-link--cta {
    width: 100%;
    justify-content: center;
  }

  .site-header__nav.is-open {
    opacity: 1;
    pointer-events: auto;
    transform: scaleY(1);
  }
}

@media (min-width: 768px) {
  .site-header__nav {
    margin-left: auto;
  }
}

/* Utility: lock body scroll when mobile nav open */

.body--nav-open {
  overflow: hidden;
}