/* HeritageGam Header Styles - builds on base.css shell */

.hg-site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  backdrop-filter: blur(18px);
  background: linear-gradient(to bottom, rgba(2, 6, 23, 0.96), rgba(2, 6, 23, 0.9));
  border-bottom: 1px solid rgba(79, 90, 150, 0.7);
}

.hg-site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--space-6);
  padding-bottom: var(--space-6);
  gap: var(--space-8);
}

/* Branding */

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

.hg-site-header__logo-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-4);
  color: var(--color-neutral-50);
}

.hg-site-header__logo-mark {
  position: relative;
  width: 40px;
  height: 40px;
  border-radius: 999px;
  background: radial-gradient(circle at 30% 0, rgba(255, 255, 255, 0.22), transparent 55%),
              radial-gradient(circle at 70% 90%, rgba(201, 155, 59, 0.5), transparent 60%),
              linear-gradient(145deg, #0b0f1f, #171b33);
  border: 1px solid rgba(201, 155, 59, 0.85);
  box-shadow: var(--shadow-soft), 0 0 16px rgba(201, 155, 59, 0.4);
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.hg-site-header__logo-glyph {
  width: 18px;
  height: 18px;
  border-radius: 4px;
  border: 2px solid rgba(245, 229, 180, 0.98);
  box-shadow: inset 0 0 0 1px rgba(12, 11, 22, 0.9);
  position: relative;
}

.hg-site-header__logo-glyph::before,
.hg-site-header__logo-glyph::after {
  content: "";
  position: absolute;
  inset: 3px;
  border-radius: 2px;
  border: 1px solid rgba(201, 155, 59, 0.85);
}

.hg-site-header__logo-glyph::after {
  inset: 6px 4px 4px 6px;
  border-style: solid;
  border-width: 0 2px 2px 0;
}

.hg-site-header__title-group {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}

.hg-site-header__title {
  font-family: var(--font-display);
  font-size: 1.1rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.hg-site-header__subtitle {
  font-size: var(--font-size-xs);
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--color-text-soft);
}

/* Navigation */

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

.hg-site-header__nav-list {
  display: flex;
  align-items: center;
  gap: var(--space-8);
  list-style: none;
  margin: 0;
  padding: 0;
}

.hg-site-header__nav-item--accent .hg-site-header__nav-link {
  padding-inline: 1rem;
  padding-block: 0.4rem;
  border-radius: var(--radius-pill);
  border: 1px solid rgba(201, 155, 59, 0.8);
  background: radial-gradient(circle at 0 0, rgba(255, 255, 255, 0.14), transparent 60%),
              rgba(7, 11, 32, 0.95);
  color: var(--color-primary-strong);
}

.hg-site-header__nav-link {
  position: relative;
  font-size: var(--font-size-sm);
  color: var(--color-text-soft);
  text-transform: uppercase;
  letter-spacing: 0.16em;
  padding-block: 0.35rem;
}

.hg-site-header__nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 2px;
  border-radius: 999px;
  background: linear-gradient(90deg, rgba(201, 155, 59, 0.8), rgba(104, 131, 255, 0.9));
  transform: scaleX(0);
  transform-origin: center;
  transition: transform var(--transition-fast);
}

.hg-site-header__nav-link:hover,
.hg-site-header__nav-link:focus-visible {
  color: var(--color-neutral-50);
}

.hg-site-header__nav-link:hover::after,
.hg-site-header__nav-link:focus-visible::after {
  transform: scaleX(1);
}

/* Mobile toggle button */

.hg-site-header__toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 999px;
  border: 1px solid rgba(113, 127, 196, 0.7);
  background: radial-gradient(circle at 10% 0, rgba(255, 255, 255, 0.12), transparent 55%),
              rgba(7, 11, 32, 0.9);
  color: var(--color-neutral-50);
}

.hg-site-header__toggle:focus-visible {
  outline: 2px solid var(--color-primary-strong);
  outline-offset: 2px;
}

.hg-site-header__toggle-lines {
  display: inline-flex;
  flex-direction: column;
  gap: 4px;
}

.hg-site-header__toggle-lines span {
  display: block;
  width: 18px;
  height: 2px;
  border-radius: 999px;
  background: var(--color-neutral-50);
  transition: transform var(--transition-fast), opacity var(--transition-fast);
}

/* Toggle "open" state */

.hg-site-header--menu-open .hg-site-header__toggle-lines span:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
}

.hg-site-header--menu-open .hg-site-header__toggle-lines span:nth-child(2) {
  opacity: 0;
}

.hg-site-header--menu-open .hg-site-header__toggle-lines span:nth-child(3) {
  transform: translateY(-6px) rotate(-45deg);
}

/* Responsive behaviour */

@media (max-width: 880px) {
  .hg-site-header__toggle {
    display: inline-flex;
  }

  .hg-site-header__nav {
    position: fixed;
    inset: 64px 0 auto 0;
    z-index: 35;
    pointer-events: none;
  }

  .hg-site-header__nav-list {
    flex-direction: column;
    align-items: flex-start;
    margin: var(--space-4) var(--layout-gutter) var(--space-10);
    padding: var(--space-8) var(--space-10);
    border-radius: var(--radius-xl);
    background: radial-gradient(circle at top, rgba(201, 155, 59, 0.14), transparent 60%),
                rgba(5, 9, 32, 0.96);
    border: 1px solid rgba(86, 100, 184, 0.7);
    box-shadow: var(--shadow-strong);
    max-width: 340px;
    margin-left: auto;
    margin-right: var(--layout-gutter);
    transform: translateY(-8px);
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-base), transform var(--transition-base), visibility var(--transition-base);
  }

  .hg-site-header__nav-item--accent .hg-site-header__nav-link {
    width: 100%;
    text-align: left;
  }

  .hg-site-header--menu-open .hg-site-header__nav {
    pointer-events: auto;
  }

  .hg-site-header--menu-open .hg-site-header__nav-list {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
  }
}

@media (max-width: 600px) {
  .hg-site-header__subtitle {
    display: none;
  }
}