/* Shared Minesite header. Loaded after page CSS so every page uses one nav shell. */
:root {
  --header-h: 68px;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 500;
  height: var(--header-h);
  background: rgba(6, 11, 6, 0.94);
  border-bottom: 1px solid var(--border, var(--ms-border, rgba(74, 222, 128, 0.18)));
  box-shadow: 0 8px 28px rgba(0, 0, 0, 0.22);
  backdrop-filter: blur(18px) saturate(1.25);
  -webkit-backdrop-filter: blur(18px) saturate(1.25);
}

.site-header .nav-container {
  width: min(100%, 1280px);
  height: 100%;
  margin: 0 auto;
  padding: 0 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.site-header .logo {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  min-width: 0;
  color: inherit;
  text-decoration: none;
  flex-shrink: 0;
}

.site-header .logo-icon-svg {
  width: 32px;
  height: 32px;
  border-radius: 6px;
  border: 1px solid var(--border-2, var(--ms-border-2, rgba(74, 222, 128, 0.24)));
  object-fit: cover;
  box-shadow: 0 0 14px rgba(74, 222, 128, 0.18);
}

.site-header .logo-text {
  font-family: var(--pixel, var(--font-pixel, "Press Start 2P", cursive));
  font-size: 0.6rem;
  line-height: 1;
  color: var(--green, var(--ms-green, #4ade80));
  letter-spacing: 0.1em;
  text-shadow: 0 0 18px rgba(74, 222, 128, 0.5);
}

.site-header .main-nav,
.site-header .main-nav ul,
.site-header .nav-links {
  margin: 0;
  padding: 0;
}

.site-header .main-nav ul,
.site-header .nav-links {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  list-style: none;
}

.site-header .main-nav a {
  position: relative;
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0.25rem 0;
  color: var(--text-2, var(--ms-text-2, #b8d0e0));
  font-family: var(--sans, var(--font-body, "DM Sans", system-ui, sans-serif));
  font-size: 0.875rem;
  font-weight: 600;
  line-height: 1.3;
  text-decoration: none;
  white-space: nowrap;
  transition: color 0.18s ease;
}

.site-header .main-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0.4rem;
  width: 0;
  height: 2px;
  border-radius: 2px;
  background: var(--green, var(--ms-green, #4ade80));
  transition: width 0.18s ease;
}

.site-header .main-nav a:hover,
.site-header .main-nav a:focus-visible,
.site-header .main-nav a.active {
  color: var(--text, var(--ms-text, #edf2ff));
}

.site-header .main-nav a:hover::after,
.site-header .main-nav a:focus-visible::after,
.site-header .main-nav a.active::after {
  width: 100%;
}

.site-header .mobile-menu-toggle {
  display: none;
  width: 44px;
  height: 44px;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 5px;
  padding: 0;
  border: 1px solid transparent;
  border-radius: 6px;
  background: transparent;
  color: var(--text-2, var(--ms-text-2, #b8d0e0));
  cursor: pointer;
}

.site-header .mobile-menu-toggle:hover,
.site-header .mobile-menu-toggle:focus-visible {
  border-color: rgba(74, 222, 128, 0.28);
  background: rgba(74, 222, 128, 0.08);
}

.site-header .burger-line {
  display: block;
  width: 22px;
  height: 2px;
  border-radius: 2px;
  background: currentColor;
  transition: transform 0.18s ease, opacity 0.18s ease;
}

.site-header .mobile-menu-toggle.active .burger-line:nth-child(1),
.site-header .mobile-menu-toggle[aria-expanded="true"] .burger-line:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.site-header .mobile-menu-toggle.active .burger-line:nth-child(2),
.site-header .mobile-menu-toggle[aria-expanded="true"] .burger-line:nth-child(2) {
  opacity: 0;
}

.site-header .mobile-menu-toggle.active .burger-line:nth-child(3),
.site-header .mobile-menu-toggle[aria-expanded="true"] .burger-line:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

body.menu-open {
  overflow: hidden;
}

@media (max-width: 860px) {
  :root {
    --header-h: 60px;
  }

  .site-header .nav-container {
    padding: 0 1rem;
  }

  .site-header .logo-icon-svg {
    width: 30px;
    height: 30px;
  }

  .site-header .logo-text {
    font-size: 0.54rem;
  }

  .site-header .mobile-menu-toggle {
    display: inline-flex;
  }

  .site-header .main-nav {
    position: fixed;
    top: var(--header-h);
    left: 0;
    right: 0;
    max-height: calc(100dvh - var(--header-h));
    overflow-y: auto;
    padding: 0.7rem 1rem 0.95rem;
    background: rgba(6, 11, 6, 0.98);
    border-bottom: 1px solid var(--border, var(--ms-border, rgba(74, 222, 128, 0.18)));
    box-shadow: 0 18px 42px rgba(0, 0, 0, 0.48);
    visibility: hidden;
    opacity: 0;
    pointer-events: none;
    transform: translateY(-6px);
    transition: opacity 0.18s ease, transform 0.18s ease, visibility 0.18s ease;
  }

  .site-header .main-nav.open,
  .site-header .main-nav.is-open {
    visibility: visible;
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
  }

  .site-header .main-nav ul,
  .site-header .nav-links {
    display: grid;
    gap: 0;
    align-items: stretch;
  }

  .site-header .main-nav li {
    border-bottom: 1px solid rgba(255, 255, 255, 0.07);
  }

  .site-header .main-nav li:last-child {
    border-bottom: 0;
  }

  .site-header .main-nav a {
    justify-content: center;
    width: 100%;
    min-height: 48px;
    font-size: 0.92rem;
  }

  .site-header .main-nav a::after {
    bottom: 0.25rem;
    left: 50%;
    transform: translateX(-50%);
  }
}

@media (max-width: 420px) {
  .site-header .nav-container {
    padding: 0 0.75rem;
  }

  .site-header .logo {
    gap: 0.5rem;
  }

  .site-header .logo-text {
    font-size: 0.5rem;
    letter-spacing: 0.08em;
  }
}