/* ============================================================
   Navbar - transparent over hero, blurred solid on scroll
   ============================================================ */
.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 1000;
  transition: background 0.4s var(--ease-out), border-color 0.4s var(--ease-out),
              box-shadow 0.4s var(--ease-out), backdrop-filter 0.4s var(--ease-out);
  border-bottom: 1px solid transparent;
}

.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  height: var(--header-h);
}

/* ---- Brand ---- */
.brand { display: inline-flex; align-items: center; gap: 12px; }
.brand-logo { height: 40px; width: auto; }
.brand-mark svg { width: 42px; height: 42px; border-radius: 10px; }
.brand-text { display: flex; flex-direction: column; line-height: 1.15; }
.brand-name {
  font-family: var(--font-display);
  font-size: 15.5px;
  font-weight: 800;
  letter-spacing: 0.08em;
  color: var(--text-light);
  transition: color 0.3s var(--ease-out);
}
.brand-sub {
  font-size: 8.5px;
  font-weight: 700;
  letter-spacing: 0.3em;
  color: var(--text-dim);
  margin-top: 3px;
}

/* ---- Nav list ---- */
.main-nav { display: flex; }

.nav-list { display: flex; align-items: center; gap: 2px; }

.nav-item { position: relative; }

.nav-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 10px 15px;
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 600;
  color: var(--text-soft);
  border-radius: 9px;
  transition: color 0.25s var(--ease-out), background 0.25s var(--ease-out);
  position: relative;
}
.nav-link::after {
  content: "";
  position: absolute;
  left: 15px;
  right: 15px;
  bottom: 6px;
  height: 2px;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--green-bright), var(--green));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s var(--ease-out);
}
.nav-link:hover, .nav-item:hover .nav-link, .nav-link[aria-expanded="true"] { color: #fff; }
.nav-link:hover::after, .nav-item:hover .nav-link::after { transform: scaleX(1); }
.nav-link .ic { font-size: 13px; opacity: 0.7; transition: transform 0.25s var(--ease-out); }
.nav-item:hover .nav-link .ic { transform: rotate(180deg); }

/* ---- Dropdown ---- */
.dropdown {
  position: absolute;
  top: calc(100% + 10px);
  left: 50%;
  transform: translate(-50%, 8px);
  min-width: 320px;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.28s var(--ease-out), transform 0.28s var(--ease-out), visibility 0.28s;
  padding-top: 6px;
}
.dropdown-inner {
  background: rgba(10, 17, 24, 0.96);
  backdrop-filter: blur(18px);
  border: 1px solid var(--line-dark);
  border-radius: var(--r-md);
  box-shadow: var(--shadow-lg), 0 0 0 1px rgba(0,0,0,.2);
  padding: 10px;
  overflow: hidden;
}
.nav-item:hover .dropdown, .nav-item:focus-within .dropdown, .nav-item.open .dropdown {
  opacity: 1;
  visibility: visible;
  transform: translate(-50%, 0);
}

.dropdown-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 12px;
  margin-bottom: 4px;
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--green-bright);
  border-radius: 8px;
  transition: background 0.2s var(--ease-out);
}
.dropdown-head:hover { background: var(--green-mist); }

.d-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 11px 12px;
  border-radius: 10px;
  transition: background 0.2s var(--ease-out), transform 0.2s var(--ease-out);
}
.d-item:hover { background: rgba(124, 197, 33, 0.1); transform: translateX(3px); }
.d-item:hover .d-ic { color: var(--green-bright); }
.d-ic {
  flex: 0 0 38px;
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  border-radius: 10px;
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--line-dark);
  color: var(--text-soft);
  transition: color 0.2s var(--ease-out), background 0.2s var(--ease-out);
}
.d-ic .ic { font-size: 18px; }
.d-item strong { display: block; font-size: 14.5px; font-weight: 600; color: var(--text-light); }
.d-item small { display: block; font-size: 12.5px; color: var(--text-dim); margin-top: 1px; }

/* Mega dropdown */
.dropdown-mega { min-width: 760px; }
.mega-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 4px;
  padding: 6px;
}
.mega-col h3.mega-title {
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-dim);
  padding: 8px 12px 6px;
}
.mega-col .d-item { padding: 9px 12px; }

/* ---- Nav actions ---- */
.nav-actions { display: flex; align-items: center; gap: 18px; }

.nav-phone {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: 600;
  font-size: 14px;
  color: var(--text-soft);
  transition: color 0.25s var(--ease-out);
}
.nav-phone .ic { font-size: 15px; color: var(--green-bright); }
.nav-phone:hover { color: #fff; }

/* Burger */
.nav-burger {
  display: none;
  width: 44px;
  height: 44px;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  border: 1px solid rgba(255,255,255,0.16);
  color: var(--text-light);
}
.nav-burger .ic { font-size: 22px; }
.nav-burger .ic-close { display: none; }
body.menu-open .nav-burger .ic-open { display: none; }
body.menu-open .nav-burger .ic-close { display: block; }

/* ---- Scrolled state ---- */
.site-header.scrolled {
  background: rgba(9, 14, 20, 0.82);
  backdrop-filter: blur(18px) saturate(140%);
  -webkit-backdrop-filter: blur(18px) saturate(140%);
  border-bottom-color: var(--line-dark);
  box-shadow: 0 12px 34px -18px rgba(0,0,0,0.65);
}
.site-header.scrolled .brand-name { color: var(--text-light); }

/* ---- Mobile overlay nav ---- */
.mobile-nav {
  position: fixed;
  inset: 0;
  z-index: 999;
  background: rgba(7, 11, 16, 0.98);
  backdrop-filter: blur(16px);
  padding: calc(var(--header-h) + 12px) 26px 40px;
  overflow-y: auto;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-14px);
  transition: opacity 0.35s var(--ease-out), transform 0.35s var(--ease-out), visibility 0.35s;
}
body.menu-open .mobile-nav { opacity: 1; visibility: visible; transform: none; }

.mobile-nav-inner { max-width: 560px; margin: 0 auto; }

.mobile-group { border-bottom: 1px solid rgba(255,255,255,0.08); }

.mobile-toggle {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 4px;
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 700;
  color: var(--text-light);
  text-align: left;
}
.mobile-toggle .ic { font-size: 15px; transition: transform 0.3s var(--ease-out); color: var(--text-dim); }
.mobile-group.open .mobile-toggle .ic { transform: rotate(180deg); color: var(--green-bright); }

.mobile-sub {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 0.4s var(--ease-out);
}
.mobile-sub > a {
  overflow: hidden;
}
.mobile-sub a {
  display: block;
  padding: 10px 4px 10px 14px;
  color: var(--text-soft);
  font-size: 15px;
  border-left: 2px solid rgba(255,255,255,0.12);
}
.mobile-group.open .mobile-sub { grid-template-rows: 1fr; }

.mobile-nav .btn-block { margin-top: 26px; }
.mobile-phone {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-top: 20px;
  font-weight: 600;
  color: var(--text-soft);
}
.mobile-phone .ic { color: var(--green-bright); }