.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 2.5px;
  background: var(--lime);
  z-index: 101;
  width: 0%;
  transition: width 0.1s linear;
}

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: transparent;
  border-bottom: 1px solid transparent;
  transition: background 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease, backdrop-filter 0.3s ease;
  padding-top: 14px;
}
.site-header.scrolled {
  background: transparent;
  backdrop-filter: none;
  border-bottom-color: transparent;
  box-shadow: none;
}
.site-header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  height: 72px;
  max-width: 1160px;
  width: calc(100% - (var(--edge) * 2));
  margin: 0 auto;
  padding: 0 18px;
  border: 1px solid rgba(255,255,255,0.18);
  background: rgba(255,255,255,0.06);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-radius: 18px;
  box-shadow: 0 10px 30px rgba(0,0,0,0.08);
}
.site-header.theme-light .site-header-inner,
.site-header.scrolled .site-header-inner {
  background: rgba(255,255,255,0.78);
  border-color: rgba(13,13,13,0.1);
  box-shadow: 0 10px 28px rgba(13,13,13,0.08);
}

.logo {
  display: flex;
  align-items: center;
  gap: 9px;
  font-family: 'Sora', sans-serif;
  font-weight: 700;
  font-size: 22px;
  letter-spacing: -0.02em;
  color: #fff;
  transition: color 0.3s ease;
}
.site-header.theme-light .logo,
.site-header.scrolled .logo { color: var(--ink); }
.logo svg { height: 26px; width: auto; }

.nav-links {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 18px;
  margin-left: auto;
  margin-right: auto;
  flex: 1;
  min-width: 0;
}
.nav-item { position: relative; }
.nav-link,
.nav-trigger {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  border: 0;
  background: none;
  padding: 8px 2px;
  font-size: 14.5px;
  font-weight: 500;
  color: rgba(255,255,255,0.94);
  cursor: pointer;
  position: relative;
  transition: color 0.2s ease;
  white-space: nowrap;
  font-family: inherit;
}
.site-header.theme-light .nav-link,
.site-header.theme-light .nav-trigger,
.site-header.scrolled .nav-link,
.site-header.scrolled .nav-trigger { color: var(--ink); }

.nav-trigger::after,
.nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -2px;
  height: 2px;
  background: rgba(255,255,255,0.92);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 0.2s ease;
}
.site-header.theme-light .nav-trigger::after,
.site-header.theme-light .nav-link::after,
.site-header.scrolled .nav-trigger::after,
.site-header.scrolled .nav-link::after { background: var(--ink); }
.nav-trigger:hover::after,
.nav-link:hover::after,
.nav-trigger[aria-expanded="true"]::after,
.nav-link:focus-visible::after,
.nav-link[aria-current="page"]::after {
  transform: scaleX(1);
  transform-origin: left;
}
.nav-caret { font-size: 11px; opacity: 0.78; transform: translateY(-1px); }

.mega-menu {
  position: absolute;
  top: calc(100% + 16px);
  left: 50%;
  transform: translateX(-50%) translateY(8px);
  width: min(760px, 70vw);
  min-width: 620px;
  display: grid;
  grid-template-columns: repeat(4, minmax(150px, 1fr));
  gap: 20px 26px;
  padding: 20px 22px 18px;
  background: rgba(16,16,16,0.96);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 18px;
  box-shadow: 0 22px 50px rgba(0,0,0,0.22);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 0.2s ease, transform 0.2s ease, visibility 0.2s ease;
  z-index: 15;
}
.nav-item:hover .mega-menu,
.nav-item:focus-within .mega-menu,
.nav-item .mega-menu.is-open {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateX(-50%) translateY(0);
}
.mega-column { display: flex; flex-direction: column; gap: 8px; }
.mega-label {
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-weight: 700;
  color: rgba(255,255,255,0.52);
  margin: 0 0 4px;
}
.mega-column a {
  display: block;
  padding: 7px 0;
  color: rgba(255,255,255,0.8);
  font-size: 13px;
  line-height: 1.4;
  transition: color 0.2s ease, transform 0.2s ease;
}
.mega-column a:hover { color: var(--white); transform: translateX(2px); }
.mega-footer {
  grid-column: 1 / -1;
  display: flex;
  justify-content: flex-end;
  padding-top: 8px;
  border-top: 1px solid rgba(255,255,255,0.08);
}
.mega-footer a {
  font-size: 13px;
  font-weight: 600;
  color: var(--lime);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.nav-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--lime);
  color: var(--ink);
  padding: 11px 20px;
  border: 1px solid var(--lime);
  border-radius: 100px;
  font-size: 14px;
  font-weight: 700;
  white-space: nowrap;
}
.nav-cta:hover {
  background: var(--ink);
  color: #fff;
  border-color: var(--ink);
  transform: translateY(-1px);
}

.nav-toggle {
  display: none;
  background: none;
  border: 0;
  padding: 8px;
}
.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: #fff;
  margin: 5px 0;
  transition: 0.25s;
}
.site-header.theme-light .nav-toggle span,
.site-header.scrolled .nav-toggle span { background: var(--ink); }

section[id] { scroll-margin-top: 92px; }

@media (max-width: 1100px) {
  .nav-links { gap: 14px; }
  .nav-link, .nav-trigger { font-size: 13.5px; }
  .nav-cta { padding: 10px 16px; font-size: 13px; }
  .mega-menu { width: min(700px, 74vw); min-width: 560px; }
}

@media (max-width: 980px) {
  .site-header { padding-top: 12px; }
  .site-header-inner { position: relative; }
  .nav-toggle { display: block; z-index: 3; }
  .nav-links {
    position: absolute;
    top: calc(100% + 10px);
    left: 0;
    right: 0;
    display: none;
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    background: rgba(255,255,255,0.98);
    border: 1px solid rgba(13,13,13,0.08);
    border-radius: 18px;
    padding: 14px 16px 18px;
    box-shadow: 0 18px 40px rgba(13,13,13,0.12);
    margin: 0;
    z-index: 12;
  }
  .nav-links.open { display: flex; }
  .nav-item, .nav-link, .nav-trigger { width: 100%; }
  .nav-link, .nav-trigger { padding: 12px 0; color: var(--ink); }
  .nav-trigger::after, .nav-link::after { display: none; }
  .mega-menu {
    position: static;
    transform: none;
    width: 100%;
    min-width: 0;
    display: none;
    grid-template-columns: 1fr;
    padding: 12px 0 0;
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    background: transparent;
    border: 0;
    border-radius: 0;
    box-shadow: none;
  }
  .nav-item .mega-menu.is-open { display: grid; }
  .mega-column { padding: 0 0 10px; border-bottom: 1px solid rgba(13,13,13,0.06); }
  .mega-footer {
    justify-content: flex-start;
    padding-top: 14px;
    border-top: 1px solid rgba(13,13,13,0.06);
  }
  .nav-cta { width: 100%; margin-top: 12px; }
}