body {
  background-color: transparent !important;
}

#page-background {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  width: 100vw;
  height: 100vh;
  z-index: -1;
  background: linear-gradient(180deg, #152671 10%, #1b2c78 30%, #5669bd 100%);
  pointer-events: none;
}

.material-symbols-outlined {
  font-family: 'Material Symbols Outlined';
  font-weight: normal;
  font-style: normal;
  font-size: 24px;
  line-height: 1;
  letter-spacing: normal;
  text-transform: none;
  display: inline-block;
  white-space: nowrap;
  word-wrap: normal;
  direction: ltr;
  -webkit-font-feature-settings: 'liga';
  -webkit-font-smoothing: antialiased;
  font-variation-settings: 'FILL' 0, 'wght' 400, 'GRAD' 0, 'opsz' 24;
}

/* Hide scrollbar for Chrome, Safari and Opera */
.no-scrollbar::-webkit-scrollbar {
  display: none;
}
/* Hide scrollbar for IE, Edge and Firefox */
.no-scrollbar {
  -ms-overflow-style: none;
  scrollbar-width: none;
}

/* Custom Premium Scrollbar */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}
::-webkit-scrollbar-track {
  background: #152671;
}
::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, rgba(175, 190, 255, 0.8) 0%, rgba(175, 190, 255, 0.2) 100%);
  border-radius: 999px;
  border: 2px solid #152671;
}
::-webkit-scrollbar-thumb:hover {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.9) 0%, rgba(175, 190, 255, 0.4) 100%);
}

html {
  scrollbar-width: thin;
  scrollbar-color: rgba(175, 190, 255, 0.5) #152671;
}

/* Navbar Slide-down Entrance Animation */
@keyframes navSlideDown {
  from {
    transform: translateY(-100%);
    opacity: 0;
  }
  to {
    transform: translateY(0);
    opacity: 1;
  }
}

#top-navbar {
  position: fixed;
  top: 0;
  width: 100%;
  z-index: 100;
  transition: padding-top 0.4s ease, padding-bottom 0.4s ease;
}

#top-navbar::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 150%;
  background: linear-gradient(180deg, #152671 0%, rgba(21, 38, 113, 0.99) 6.25%, rgba(21, 38, 113, 0.96) 12.5%, rgba(21, 38, 113, 0.91) 18.75%, rgba(21, 38, 113, 0.85) 25%, rgba(21, 38, 113, 0.77) 31.25%, rgba(21, 38, 113, 0.69) 37.5%, rgba(21, 38, 113, 0.59) 43.75%, rgba(21, 38, 113, 0.5) 50%, rgba(21, 38, 113, 0.4) 56.25%, rgba(21, 38, 113, 0.3) 62.5%, rgba(21, 38, 113, 0.22) 68.75%, rgba(21, 38, 113, 0.14) 75%, rgba(21, 38, 113, 0.08) 81.25%, rgba(21, 38, 113, 0.03) 87.5%, rgba(21, 38, 113, 0.01) 93.75%, rgba(21, 38, 113, 0) 100%);
  pointer-events: none;
  z-index: -1;
}

#top-navbar.animate-nav {
  animation: navSlideDown 0.8s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

#top-navbar.scrolled {
  padding-top: 12px;
  padding-bottom: 12px;
}

#top-navbar.scrolled-black {
  padding-top: 12px;
  padding-bottom: 12px;
}

/* Helium-matching Topbar Button Styles
   No `will-change` here on purpose: these only transform on :hover/:active, and
   the header holds ~20 of them, so a permanent hint would keep ~20 composited
   layers alive from the first frame for a hover that may never happen. */
.nav-link {
  color: #ffffff !important;
  background-color: transparent;
  padding: 9px 16px;
  border-radius: 50px;
  font-size: 16px;
  font-weight: 500;
  font-family: 'Instrument Sans', sans-serif;
  transition: background-color 0.1s ease, transform 0.2s ease, opacity 0.2s ease;
  display: flex;
  align-items: center;
  text-decoration: none;
  user-select: none;
}

.nav-link:hover {
  background-color: rgba(175, 190, 255, 0.25) !important;
}

.nav-link:active {
  background-color: rgba(175, 190, 255, 0.3) !important;
  transform: scale(0.97);
}

.mobile-menu-link {
  color: #ffffff !important;
  font-family: 'Instrument Sans', sans-serif;
  font-size: 18px;
  font-weight: 500;
  text-decoration: none;
  transition: opacity 0.2s ease, transform 0.2s ease;
  display: inline-flex;
  align-items: center;
  user-select: none;
}

.mobile-menu-link:hover {
  opacity: 0.8;
}

.mobile-menu-link:active {
  transform: scale(0.97);
  opacity: 0.7;
}

/* Dialog Animation Styles */
dialog {
  display: none;
  align-items: center;
  justify-content: center;
  position: fixed;
  inset: 0;
  width: 100vw;
  height: 100vh;
  max-width: 100% !important;
  max-height: 100% !important;
  background: transparent !important;
  z-index: 1000;
  border: none;
  outline: none;
}

dialog[open] {
  display: flex !important;
}

dialog::backdrop {
  display: none !important;
}

/* Custom Backdrop Overlay inside dialog */
.dialog-backdrop {
  position: absolute;
  inset: 0;
  background-color: rgba(27, 44, 120, 0);
  backdrop-filter: blur(0px);
  -webkit-backdrop-filter: blur(0px);
  transition: background-color 0.2s ease, backdrop-filter 0.2s ease, -webkit-backdrop-filter 0.2s ease;
  z-index: 1;
  pointer-events: auto;
}

dialog.is-open .dialog-backdrop {
  background-color: rgba(27, 44, 120, 0.2);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

/* Helium Dialog Container styling & entrance scale transition */
.helium-dialog-container {
  width: calc(100% - 32px);
  max-width: 380px;
  font-size: 16px;
  background: rgba(27, 44, 120, 0.9);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border: 2px solid rgba(175, 190, 255, 0.3);
  border-radius: 28px;
  transform-origin: center;
  transform: scale(0.8);
  opacity: 0;
  transition: transform 0.2s ease, opacity 0.2s ease;
  z-index: 10;
  pointer-events: auto;
}

dialog.is-open .helium-dialog-container {
  transform: scale(1);
  opacity: 1;
}

/* Action button style inside download modal matching Helium style */
.helium-dialog-btn {
  background: rgba(175, 190, 255, 0.2);
  border-radius: 12px;
  padding: 14px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  color: #ffffff;
  font-family: 'Instrument Sans', sans-serif;
  text-align: center;
  user-select: none;
  transition: background-color 0.15s ease, transform 0.15s ease;
  border: none;
  outline: none;
}

.helium-dialog-btn:hover {
  background-color: rgba(175, 190, 255, 0.25);
}

.helium-dialog-btn:active {
  background-color: rgba(175, 190, 255, 0.3);
  transform: scale(0.97);
}

/* Close button style matching Helium style */
.helium-dialog-btn-close {
  background: #ffffff !important;
  color: #000000 !important;
  border-radius: 12px !important;
  padding: 11px 18px !important;
  width: 100%;
  font-family: 'Instrument Sans', sans-serif;
  font-weight: 700;
  font-size: 15px;
  transition: background-color 0.15s ease, transform 0.15s ease;
  border: none;
  outline: none;
  cursor: pointer;
  text-align: center;
  user-select: none;
}

.helium-dialog-btn-close:hover {
  background-color: rgba(255, 255, 255, 0.9) !important;
}

.helium-dialog-btn-close:active {
  transform: scale(0.97) !important;
}

/* Mobile Responsive Helium Dialog Styles (<= 550px) */
@media screen and (max-width: 550px) {
  dialog {
    align-items: flex-end !important;
  }

  /* Backdrop transitions to gradient fill at the bottom */
  .dialog-backdrop {
    background: linear-gradient(0deg, rgba(21, 38, 113, 0.98) 40%, rgba(21, 38, 113, 0.6) 75%, rgba(21, 38, 113, 0) 100%) !important;
    opacity: 0;
    backdrop-filter: blur(0px) !important;
    -webkit-backdrop-filter: blur(0px) !important;
    transition: opacity 0.25s ease, backdrop-filter 0.25s ease, -webkit-backdrop-filter 0.25s ease !important;
  }

  dialog.is-open .dialog-backdrop {
    opacity: 1 !important;
    backdrop-filter: blur(8px) !important;
    -webkit-backdrop-filter: blur(8px) !important;
  }

  /* Mobile dialog container overrides */
  .helium-dialog-container {
    width: calc(100% - 32px);
    max-width: 500px;
    background: transparent !important;
    backdrop-filter: none !important;
    -webkit-backdrop-filter: none !important;
    border: none !important;
    box-shadow: none !important;
    border-radius: 0 !important;
    margin-bottom: 24px;

    /* Mobile entrance transition: slide up from bottom */
    transform: translateY(100%) !important;
    opacity: 0;
    transition: transform 0.25s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.25s ease !important;
  }

  dialog.is-open .helium-dialog-container {
    transform: translateY(0) !important;
    opacity: 1;
  }
}

/* ---- site chrome fallbacks ---- */
html, body { background: transparent !important; }
body::before { display: none !important; }   /* old noise overlay: off on the gradient */
.font-geist { font-family: 'Geist', ui-sans-serif, system-ui, sans-serif; }
.font-sora { font-family: 'Sora', ui-sans-serif, system-ui, sans-serif; }
.font-instrument { font-family: 'Instrument Sans', ui-sans-serif, system-ui, sans-serif; }
.nav-link.active-nav { background-color: rgba(175, 190, 255, 0.18) !important; }
.text-\[\#afbeff\]\/70 { color: rgba(175, 190, 255, 0.7); }
.selection\:bg-white\/20::selection, ::selection { background: rgba(255, 255, 255, 0.2); }
.pt-10 { padding-top: 2.5rem; }
#mobile-menu.open { transform: translateY(0); opacity: 1; pointer-events: auto; }
#mobile-menu-btn.open #mobile-menu-chevron { transform: rotate(180deg); }
/* compat: preflight removes list markers; restore them for old sections
   unless a class explicitly styles the list (classes win by specificity) */
main ul { list-style: disc outside; padding-left: 1.4rem; }
main ol { list-style: decimal outside; padding-left: 1.4rem; }