/* Pxier site header — sticky, blurred backdrop, mega menu */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255,255,255,.82);
  backdrop-filter: saturate(160%) blur(14px);
  -webkit-backdrop-filter: saturate(160%) blur(14px);
  border-bottom: 1px solid var(--line);
}

.site-nav {
  max-width: var(--container);
  margin: 0 auto;
  padding: 14px var(--container-pad);
  display: flex;
  align-items: center;
  gap: 32px;
}

.site-logo { display: inline-flex; align-items: center; text-decoration: none; }
.site-logo img { height: 30px; width: auto; }

.nav-primary {
  display: flex;
  gap: 28px;
  align-items: center;
  list-style: none;
}
.nav-primary > li { position: relative; }
.nav-primary > li > a {
  color: var(--ink-soft);
  text-decoration: none;
  font-size: 14.5px;
  font-weight: 500;
  padding: 8px 0;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: color .2s;
}
.nav-primary > li > a:hover { color: var(--brand); }
.nav-primary .caret {
  width: 10px;
  height: 6px;
  stroke: currentColor;
  stroke-width: 1.8;
  fill: none;
  transition: transform .2s;
}
.nav-primary > li:hover .caret { transform: rotate(180deg); }

/* Mega menu */
/* Menu attaches directly below the header (no dead zone) so the cursor
   doesn't lose hover when moving from nav link to dropdown. */
.mega {
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%);
  background: var(--surface);
  border: 1px solid var(--line);
  border-top: 0;
  border-radius: 0 0 var(--r) var(--r);
  box-shadow: var(--shadow-lg);
  padding: 32px 36px 36px;
  min-width: 1080px;
  max-width: calc(100vw - 40px);
  display: grid;
  grid-template-columns: 200px repeat(5, minmax(135px, 1fr));
  gap: 28px;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity .18s ease, visibility .18s ease;
}
.nav-primary > li:hover > .mega,
.nav-primary > li:focus-within > .mega {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}
.mega-feature {
  background: linear-gradient(140deg, var(--brand-tint), #f4f8ff);
  border-radius: var(--r-sm);
  padding: 24px 22px;
}
.mega-feature h4 {
  font-family: 'Fraunces', Georgia, serif;
  font-size: 17px;
  font-weight: 500;
  color: var(--ink);
  margin-bottom: 16px;
  letter-spacing: -.005em;
}
.mega-feature ul { list-style: none; font-size: 13.5px; color: var(--ink-soft); }
.mega-feature li {
  padding: 6px 0 6px 18px;
  position: relative;
  line-height: 1.4;
}
.mega-feature li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 13px;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--accent);
}
.mega-col h4 {
  font-size: 11.5px;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--ink-faint);
  margin-bottom: 18px;
  white-space: nowrap;
}
.mega-col ul { list-style: none; display: grid; gap: 12px; }
.mega-col li a {
  color: var(--ink);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  line-height: 1.4;
  transition: color .2s, padding-left .2s;
  display: inline-block;
}
.mega-col li a:hover { color: var(--brand); padding-left: 4px; }

.nav-right { margin-left: auto; display: flex; align-items: center; gap: 12px; }
.lang-toggle {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border: 1px solid var(--line);
  border-radius: 99px;
  padding: 6px 12px;
  background: transparent;
  font-size: 13px;
  font-weight: 600;
  color: var(--ink);
  cursor: pointer;
  position: relative;
}
.lang-toggle:hover { border-color: var(--brand); color: var(--brand); }
.lang-toggle img { width: 16px; height: 12px; object-fit: cover; border-radius: 2px; }
.lang-menu {
  position: absolute;
  top: calc(100% + 6px);
  right: 0;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--r-sm);
  box-shadow: var(--shadow-md);
  padding: 6px;
  list-style: none;
  min-width: 130px;
  display: none;
  z-index: 60;
}
.lang-menu.open { display: block; }
.lang-menu li a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 12px;
  border-radius: 8px;
  font-size: 13.5px;
  color: var(--ink);
  text-decoration: none;
}
.lang-menu li a img { width: 16px; height: 12px; object-fit: cover; border-radius: 2px; }
.lang-menu li a:hover { background: var(--brand-tint); color: var(--brand); }

.mobile-toggle {
  display: none;
  background: transparent;
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 8px;
  cursor: pointer;
}
.mobile-toggle svg { width: 22px; height: 22px; stroke: var(--ink); stroke-width: 2; fill: none; display: block; }

.mobile-menu { display: none; }

@media (max-width: 1024px) {
  .nav-primary { display: none; }
  .mobile-toggle { display: inline-flex; }
  .mobile-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--surface);
    border-bottom: 1px solid var(--line);
    box-shadow: var(--shadow-lg);
    padding: 12px var(--container-pad) 24px;
    max-height: calc(100vh - 70px);
    overflow-y: auto;
  }
  .mobile-menu.open { display: block; }
  .mobile-menu a {
    display: block;
    padding: 13px 4px;
    color: var(--ink);
    border-bottom: 1px solid var(--line-soft);
    font-size: 15px;
    font-weight: 600;
    text-decoration: none;
  }
  .mobile-menu .group-label {
    padding: 18px 4px 8px;
    font-size: 11.5px;
    font-weight: 700;
    letter-spacing: .08em;
    text-transform: uppercase;
    color: var(--ink-faint);
    border: 0;
  }
  .mobile-menu .sub a {
    padding-left: 14px;
    font-weight: 500;
    color: var(--ink-soft);
    font-size: 14px;
  }
  .mobile-menu .mob-ctas {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
    margin-top: 18px;
    border-top: 1px solid var(--line);
    padding-top: 18px;
  }
  .mobile-menu .mob-ctas a { border: 0; padding: 12px; text-align: center; border-radius: 99px; }
  .mobile-menu .mob-ctas .login { background: var(--brand-tint); color: var(--brand); }
  .mobile-menu .mob-ctas .demo { background: var(--brand); color: #fff; }
}

@media (max-width: 640px) {
  .nav-right .btn-ghost { display: none; }
}
@media (max-width: 480px) {
  .nav-right .lang-toggle { display: none; }
}