/* Site header: always fixed; transparent over the hero, then a compact
   frosted bar once the page scrolls (.is-scrolled, set by assets/js/header.js).
   Overrides the template's absolute -> fixed jump and fadeInDown animation. */

.site-header,
.site-header.header-fixed {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 999;
  background: transparent;
  box-shadow: none;
  border-bottom: 1px solid transparent;
  animation: none !important;
  transition: background-color 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}

.dark .site-header.is-scrolled,
.site-header.is-scrolled {
  background: rgba(2, 6, 56, 0.78);
  -webkit-backdrop-filter: blur(14px) saturate(140%);
  backdrop-filter: blur(14px) saturate(140%);
  border-bottom-color: rgba(255, 255, 255, 0.08);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.25);
}

.site-header .navbar {
  padding: 22px 0;
  transition: padding 0.3s ease;
}

.site-header.is-scrolled .navbar {
  padding: 10px 0;
}

.site-header .navbar-brand {
  margin-right: 40px;
}

.site-header .logo {
  height: 50px;
  width: auto;
  transition: height 0.3s ease;
}

.site-header.is-scrolled .logo {
  height: 40px;
}

/* Links: pill highlight for hover / the section in view */
.site-header .navbar-nav {
  align-items: center;
  gap: 4px;
}

.dark .site-header .navbar .navbar-collapse .navbar-nav .nav-item .nav-link,
.site-header .navbar .navbar-collapse .navbar-nav .nav-item .nav-link {
  position: relative;
  padding: 9px 16px;
  border-radius: 999px;
  color: rgba(255, 255, 255, 0.86);
  font-family: var(--head-font);
  font-size: 17px;
  font-weight: 700;
  transition: color 0.2s ease, background-color 0.2s ease;
}

.dark .site-header .navbar .navbar-collapse .navbar-nav .nav-item .nav-link:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.08);
}

.dark .site-header .navbar .navbar-collapse .navbar-nav .nav-item .nav-link.active {
  color: #fff;
  background: rgba(255, 255, 255, 0.1);
}

.dark .site-header .navbar .navbar-collapse .navbar-nav .nav-item .nav-link.active::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 3px;
  width: 6px;
  height: 6px;
  margin-left: -3px;
  border-radius: 50%;
  background: var(--primary-color, #ff7a1f);
}

.site-header .nav-link:focus-visible,
.site-header .navbar-toggler:focus-visible {
  outline: 3px solid #fff;
  outline-offset: 2px;
}

/* Burger -> X */
.site-header .navbar-toggler {
  padding: 10px;
  border: 0;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.08);
  box-shadow: none;
}

.site-header__burger {
  position: relative;
  display: block;
  width: 22px;
  height: 16px;
}

.site-header__burger span {
  position: absolute;
  left: 0;
  width: 100%;
  height: 2.5px;
  border-radius: 2px;
  background: #fff;
  transition: transform 0.25s ease, opacity 0.2s ease, top 0.25s ease;
}

.site-header__burger span:nth-child(1) { top: 0; }
.site-header__burger span:nth-child(2) { top: 7px; }
.site-header__burger span:nth-child(3) { top: 14px; }

.navbar-toggler:not(.collapsed) .site-header__burger span:nth-child(1) { top: 7px; transform: rotate(45deg); }
.navbar-toggler:not(.collapsed) .site-header__burger span:nth-child(2) { opacity: 0; }
.navbar-toggler:not(.collapsed) .site-header__burger span:nth-child(3) { top: 7px; transform: rotate(-45deg); }

/* ---------- Phone / tablet menu ---------- */
@media (max-width: 991px) {
  .site-header {
    background: rgba(2, 6, 56, 0.78);
    -webkit-backdrop-filter: blur(14px);
    backdrop-filter: blur(14px);
  }
  .site-header .navbar,
  .site-header.is-scrolled .navbar { padding: 10px 0; }
  .site-header .logo,
  .site-header.is-scrolled .logo { height: 40px; }
  .site-header .navbar-brand { width: auto; margin: 0; }

  .site-header .navbar-collapse {
    margin-top: 10px;
    padding: 10px;
    border-radius: 18px;
    background: #0c0f35;
    border: 1px solid #432279;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
  }
  .site-header .navbar .navbar-collapse .navbar-nav {
    height: auto;
    margin: 0;
    align-items: stretch;
    gap: 2px;
  }
  .site-header .navbar .navbar-collapse .navbar-nav .nav-item { padding: 0; }
  .dark .site-header .navbar .navbar-collapse .navbar-nav .nav-item .nav-link {
    display: block;
    padding: 14px 16px;
    border-radius: 12px;
    font-size: 19px;
  }
  .dark .site-header .navbar .navbar-collapse .navbar-nav .nav-item .nav-link.active::after {
    left: auto;
    right: 18px;
    bottom: 50%;
    margin: 0 0 -3px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .site-header,
  .site-header *,
  .site-header .navbar,
  .site-header .logo {
    transition: none !important;
  }
}

/* Anchored sections land below the fixed bar */
section[id] {
  scroll-margin-top: 70px;
}

/* Scroll-to-top: chunky orange game button (assets/js/site.js) */
.scrollToTop {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: 14px;
  background: linear-gradient(180deg, #ff9a45 0%, #ff7a1f 100%);
  box-shadow: 0 4px 0 #c4520a, 0 10px 22px rgba(0, 0, 0, 0.35);
  line-height: 1;
  transition: bottom 0.3s ease, opacity 0.3s ease, transform 0.12s ease;
}

.scrollToTop:hover { color: #fff; transform: translateY(-2px); }
.scrollToTop:focus-visible { outline: 3px solid #fff; outline-offset: 3px; }